diff --git a/Android.bp b/Android.bp
index 8db952e..ee2281f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -178,6 +178,8 @@
         "core/java/android/hardware/location/IContextHubClientCallback.aidl",
         "core/java/android/hardware/location/IContextHubService.aidl",
         "core/java/android/hardware/location/IContextHubTransactionCallback.aidl",
+        "core/java/android/hardware/radio/IAnnouncementListener.aidl",
+        "core/java/android/hardware/radio/ICloseHandle.aidl",
         "core/java/android/hardware/radio/IRadioService.aidl",
         "core/java/android/hardware/radio/ITuner.aidl",
         "core/java/android/hardware/radio/ITunerCallback.aidl",
@@ -241,6 +243,7 @@
         "core/java/android/os/storage/IStorageEventListener.aidl",
         "core/java/android/os/storage/IStorageShutdownObserver.aidl",
         "core/java/android/os/storage/IObbActionListener.aidl",
+        "core/java/android/security/IConfirmationPromptCallback.aidl",
         "core/java/android/security/IKeystoreService.aidl",
         "core/java/android/security/keymaster/IKeyAttestationApplicationIdProvider.aidl",
         "core/java/android/service/autofill/IAutoFillService.aidl",
@@ -471,8 +474,8 @@
         "telecomm/java/com/android/internal/telecom/IInCallService.aidl",
         "telecomm/java/com/android/internal/telecom/ITelecomService.aidl",
         "telecomm/java/com/android/internal/telecom/RemoteServiceCallback.aidl",
-	"telephony/java/android/telephony/data/IDataService.aidl",
-	"telephony/java/android/telephony/data/IDataServiceCallback.aidl",
+        "telephony/java/android/telephony/data/IDataService.aidl",
+        "telephony/java/android/telephony/data/IDataServiceCallback.aidl",
         "telephony/java/android/telephony/ims/internal/aidl/IImsCallSessionListener.aidl",
         "telephony/java/android/telephony/ims/internal/aidl/IImsCapabilityCallback.aidl",
         "telephony/java/android/telephony/ims/internal/aidl/IImsConfig.aidl",
@@ -482,13 +485,14 @@
         "telephony/java/android/telephony/ims/internal/aidl/IImsRcsFeature.aidl",
         "telephony/java/android/telephony/ims/internal/aidl/IImsServiceController.aidl",
         "telephony/java/android/telephony/ims/internal/aidl/IImsServiceControllerListener.aidl",
-	"telephony/java/android/telephony/ims/internal/aidl/IImsSmsListener.aidl",
-        "telephony/java/android/telephony/mbms/IMbmsDownloadSessionCallback.aidl",
+	"telephony/java/android/telephony/mbms/IMbmsDownloadSessionCallback.aidl",
         "telephony/java/android/telephony/mbms/IMbmsStreamingSessionCallback.aidl",
         "telephony/java/android/telephony/mbms/IDownloadStateCallback.aidl",
         "telephony/java/android/telephony/mbms/IStreamingServiceCallback.aidl",
         "telephony/java/android/telephony/mbms/vendor/IMbmsDownloadService.aidl",
         "telephony/java/android/telephony/mbms/vendor/IMbmsStreamingService.aidl",
+        "telephony/java/android/telephony/INetworkService.aidl",
+        "telephony/java/android/telephony/INetworkServiceCallback.aidl",
         "telephony/java/com/android/ims/internal/IImsCallSession.aidl",
         "telephony/java/com/android/ims/internal/IImsCallSessionListener.aidl",
         "telephony/java/com/android/ims/internal/IImsConfig.aidl",
@@ -661,7 +665,9 @@
     ],
 
     // Loaded with System.loadLibrary by android.view.textclassifier
-    required: ["libtextclassifier"],
+    required: [
+        "libtextclassifier",
+        "libmedia2_jni",],
 
     javac_shard_size: 150,
 
@@ -823,7 +829,9 @@
 
     srcs: [
         "core/java/android/os/HidlSupport.java",
+        "core/java/android/annotation/IntDef.java",
         "core/java/android/annotation/NonNull.java",
+        "core/java/android/annotation/SystemApi.java",
         "core/java/android/os/HwBinder.java",
         "core/java/android/os/HwBlob.java",
         "core/java/android/os/HwParcel.java",
diff --git a/Android.mk b/Android.mk
index 2254008..32e4bfa 100644
--- a/Android.mk
+++ b/Android.mk
@@ -823,6 +823,28 @@
     $(call all-proto-files-under, libs/incident/proto/android/os)
 include $(BUILD_STATIC_JAVA_LIBRARY)
 
+# ==== hiddenapi lists =======================================
+
+# Generate light greylist as private API minus (blacklist plus dark greylist).
+
+$(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST): PRIVATE_API := $(INTERNAL_PLATFORM_PRIVATE_DEX_API_FILE)
+$(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST): BLACKLIST := $(INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST)
+$(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST): DARK_GREYLIST := $(INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST)
+$(INTERNAL_PLATFORM_HIDDENAPI_LIGHT_GREYLIST): $(INTERNAL_PLATFORM_PRIVATE_DEX_API_FILE) \
+                                               $(INTERNAL_PLATFORM_HIDDENAPI_BLACKLIST) \
+                                               $(INTERNAL_PLATFORM_HIDDENAPI_DARK_GREYLIST)
+	if [ ! -z "`comm -12 <(sort $(BLACKLIST)) <(sort $(DARK_GREYLIST))`" ]; then \
+		echo "There should be no overlap between $(BLACKLIST) and $(DARK_GREYLIST)" 1>&2; \
+		exit 1; \
+	elif [ ! -z "`comm -13 <(sort $(PRIVATE_API)) <(sort $(BLACKLIST))`" ]; then \
+		echo "$(BLACKLIST) must be a subset of $(PRIVATE_API)" 1>&2; \
+		exit 2; \
+	elif [ ! -z "`comm -13 <(sort $(PRIVATE_API)) <(sort $(DARK_GREYLIST))`" ]; then \
+		echo "$(DARK_GREYLIST) must be a subset of $(PRIVATE_API)" 1>&2; \
+		exit 3; \
+	fi
+	comm -23 <(sort $(PRIVATE_API)) <(sort $(BLACKLIST) $(DARK_GREYLIST)) > $@
+
 # Include subdirectory makefiles
 # ============================================================
 
diff --git a/api/current.txt b/api/current.txt
index f7cfc75..206d377 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -6,6 +6,7 @@
 
   public static final class Manifest.permission {
     ctor public Manifest.permission();
+    field public static final java.lang.String ACCEPT_HANDOVER = "android.permission.ACCEPT_HANDOVER";
     field public static final java.lang.String ACCESS_CHECKIN_PROPERTIES = "android.permission.ACCESS_CHECKIN_PROPERTIES";
     field public static final java.lang.String ACCESS_COARSE_LOCATION = "android.permission.ACCESS_COARSE_LOCATION";
     field public static final java.lang.String ACCESS_FINE_LOCATION = "android.permission.ACCESS_FINE_LOCATION";
@@ -72,6 +73,7 @@
     field public static final java.lang.String DUMP = "android.permission.DUMP";
     field public static final java.lang.String EXPAND_STATUS_BAR = "android.permission.EXPAND_STATUS_BAR";
     field public static final java.lang.String FACTORY_TEST = "android.permission.FACTORY_TEST";
+    field public static final java.lang.String FOREGROUND_SERVICE = "android.permission.FOREGROUND_SERVICE";
     field public static final java.lang.String GET_ACCOUNTS = "android.permission.GET_ACCOUNTS";
     field public static final java.lang.String GET_ACCOUNTS_PRIVILEGED = "android.permission.GET_ACCOUNTS_PRIVILEGED";
     field public static final java.lang.String GET_PACKAGE_SIZE = "android.permission.GET_PACKAGE_SIZE";
@@ -1809,6 +1811,7 @@
   public static final class R.id {
     ctor public R.id();
     field public static final int accessibilityActionContextClick = 16908348; // 0x102003c
+    field public static final int accessibilityActionHideTooltip = 16908357; // 0x1020045
     field public static final int accessibilityActionMoveWindow = 16908354; // 0x1020042
     field public static final int accessibilityActionScrollDown = 16908346; // 0x102003a
     field public static final int accessibilityActionScrollLeft = 16908345; // 0x1020039
@@ -1817,6 +1820,7 @@
     field public static final int accessibilityActionScrollUp = 16908344; // 0x1020038
     field public static final int accessibilityActionSetProgress = 16908349; // 0x102003d
     field public static final int accessibilityActionShowOnScreen = 16908342; // 0x1020036
+    field public static final int accessibilityActionShowTooltip = 16908356; // 0x1020044
     field public static final int addToDictionary = 16908330; // 0x102002a
     field public static final int autofill = 16908355; // 0x1020043
     field public static final int background = 16908288; // 0x1020000
@@ -5223,6 +5227,7 @@
     field public static final java.lang.String EXTRA_PROGRESS = "android.progress";
     field public static final java.lang.String EXTRA_PROGRESS_INDETERMINATE = "android.progressIndeterminate";
     field public static final java.lang.String EXTRA_PROGRESS_MAX = "android.progressMax";
+    field public static final java.lang.String EXTRA_REMOTE_INPUT_DRAFT = "android.remoteInputDraft";
     field public static final java.lang.String EXTRA_REMOTE_INPUT_HISTORY = "android.remoteInputHistory";
     field public static final deprecated java.lang.String EXTRA_SELF_DISPLAY_NAME = "android.selfDisplayName";
     field public static final java.lang.String EXTRA_SHOW_CHRONOMETER = "android.showChronometer";
@@ -6347,6 +6352,7 @@
     method public void onReceive(android.content.Context, android.content.Intent);
     method public void onSecurityLogsAvailable(android.content.Context, android.content.Intent);
     method public void onSystemUpdatePending(android.content.Context, android.content.Intent, long);
+    method public void onTransferAffiliatedProfileOwnershipComplete(android.content.Context, android.os.UserHandle);
     method public void onTransferOwnershipComplete(android.content.Context, android.os.PersistableBundle);
     method public void onUserAdded(android.content.Context, android.content.Intent, android.os.UserHandle);
     method public void onUserRemoved(android.content.Context, android.content.Intent, android.os.UserHandle);
@@ -6368,7 +6374,7 @@
     field public static final java.lang.String DEVICE_ADMIN_META_DATA = "android.app.device_admin";
     field public static final java.lang.String EXTRA_DISABLE_WARNING = "android.app.extra.DISABLE_WARNING";
     field public static final java.lang.String EXTRA_LOCK_TASK_PACKAGE = "android.app.extra.LOCK_TASK_PACKAGE";
-    field public static final java.lang.String EXTRA_TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE = "android.app.extra.TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE";
+    field public static final java.lang.String EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE = "android.app.extra.TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE";
     field public static final java.lang.String SUPPORT_TRANSFER_OWNERSHIP_META_DATA = "android.app.support_transfer_ownership";
   }
 
@@ -6456,6 +6462,7 @@
     method public boolean getStorageEncryption(android.content.ComponentName);
     method public int getStorageEncryptionStatus();
     method public android.app.admin.SystemUpdatePolicy getSystemUpdatePolicy();
+    method public android.os.PersistableBundle getTransferOwnershipBundle();
     method public java.util.List<android.os.PersistableBundle> getTrustAgentConfiguration(android.content.ComponentName, android.content.ComponentName);
     method public android.os.Bundle getUserRestrictions(android.content.ComponentName);
     method public java.lang.String getWifiMacAddress(android.content.ComponentName);
@@ -6887,6 +6894,8 @@
     method public void onRestore(android.app.backup.BackupDataInput, long, android.os.ParcelFileDescriptor) throws java.io.IOException;
     method public void onRestoreFile(android.os.ParcelFileDescriptor, long, java.io.File, int, long, long) throws java.io.IOException;
     method public void onRestoreFinished();
+    field public static final int FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED = 1; // 0x1
+    field public static final int FLAG_DEVICE_TO_DEVICE_TRANSFER = 2; // 0x2
     field public static final int TYPE_DIRECTORY = 2; // 0x2
     field public static final int TYPE_FILE = 1; // 0x1
   }
@@ -6914,6 +6923,7 @@
 
   public class BackupDataOutput {
     method public long getQuota();
+    method public int getTransportFlags();
     method public int writeEntityData(byte[], int) throws java.io.IOException;
     method public int writeEntityHeader(java.lang.String, int) throws java.io.IOException;
   }
@@ -6928,7 +6938,7 @@
     ctor public BackupManager(android.content.Context);
     method public void dataChanged();
     method public static void dataChanged(java.lang.String);
-    method public int requestRestore(android.app.backup.RestoreObserver);
+    method public deprecated int requestRestore(android.app.backup.RestoreObserver);
   }
 
   public class FileBackupHelper implements android.app.backup.BackupHelper {
@@ -6939,6 +6949,7 @@
 
   public class FullBackupDataOutput {
     method public long getQuota();
+    method public int getTransportFlags();
   }
 
   public abstract class RestoreObserver {
@@ -11135,6 +11146,7 @@
     field public static final java.lang.String FEATURE_BLUETOOTH_LE = "android.hardware.bluetooth_le";
     field public static final java.lang.String FEATURE_CAMERA = "android.hardware.camera";
     field public static final java.lang.String FEATURE_CAMERA_ANY = "android.hardware.camera.any";
+    field public static final java.lang.String FEATURE_CAMERA_AR = "android.hardware.camera.ar";
     field public static final java.lang.String FEATURE_CAMERA_AUTOFOCUS = "android.hardware.camera.autofocus";
     field public static final java.lang.String FEATURE_CAMERA_CAPABILITY_MANUAL_POST_PROCESSING = "android.hardware.camera.capability.manual_post_processing";
     field public static final java.lang.String FEATURE_CAMERA_CAPABILITY_MANUAL_SENSOR = "android.hardware.camera.capability.manual_sensor";
@@ -11194,6 +11206,7 @@
     field public static final java.lang.String FEATURE_SENSOR_STEP_DETECTOR = "android.hardware.sensor.stepdetector";
     field public static final java.lang.String FEATURE_SIP = "android.software.sip";
     field public static final java.lang.String FEATURE_SIP_VOIP = "android.software.sip.voip";
+    field public static final java.lang.String FEATURE_STRONGBOX_KEYSTORE = "android.hardware.strongbox_keystore";
     field public static final java.lang.String FEATURE_TELEPHONY = "android.hardware.telephony";
     field public static final java.lang.String FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
     field public static final java.lang.String FEATURE_TELEPHONY_GSM = "android.hardware.telephony.gsm";
@@ -11548,15 +11561,15 @@
 
   public final class AssetManager implements java.lang.AutoCloseable {
     method public void close();
-    method public final java.lang.String[] getLocales();
-    method public final java.lang.String[] list(java.lang.String) throws java.io.IOException;
-    method public final java.io.InputStream open(java.lang.String) throws java.io.IOException;
-    method public final java.io.InputStream open(java.lang.String, int) throws java.io.IOException;
-    method public final android.content.res.AssetFileDescriptor openFd(java.lang.String) throws java.io.IOException;
-    method public final android.content.res.AssetFileDescriptor openNonAssetFd(java.lang.String) throws java.io.IOException;
-    method public final android.content.res.AssetFileDescriptor openNonAssetFd(int, java.lang.String) throws java.io.IOException;
-    method public final android.content.res.XmlResourceParser openXmlResourceParser(java.lang.String) throws java.io.IOException;
-    method public final android.content.res.XmlResourceParser openXmlResourceParser(int, java.lang.String) throws java.io.IOException;
+    method public java.lang.String[] getLocales();
+    method public java.lang.String[] list(java.lang.String) throws java.io.IOException;
+    method public java.io.InputStream open(java.lang.String) throws java.io.IOException;
+    method public java.io.InputStream open(java.lang.String, int) throws java.io.IOException;
+    method public android.content.res.AssetFileDescriptor openFd(java.lang.String) throws java.io.IOException;
+    method public android.content.res.AssetFileDescriptor openNonAssetFd(java.lang.String) throws java.io.IOException;
+    method public android.content.res.AssetFileDescriptor openNonAssetFd(int, java.lang.String) throws java.io.IOException;
+    method public android.content.res.XmlResourceParser openXmlResourceParser(java.lang.String) throws java.io.IOException;
+    method public android.content.res.XmlResourceParser openXmlResourceParser(int, java.lang.String) throws java.io.IOException;
     field public static final int ACCESS_BUFFER = 3; // 0x3
     field public static final int ACCESS_RANDOM = 1; // 0x1
     field public static final int ACCESS_STREAMING = 2; // 0x2
@@ -16218,6 +16231,7 @@
 
   public final class TotalCaptureResult extends android.hardware.camera2.CaptureResult {
     method public java.util.List<android.hardware.camera2.CaptureResult> getPartialResults();
+    method public <T> T getPhysicalCameraKey(android.hardware.camera2.CaptureResult.Key<T>, java.lang.String);
   }
 
 }
@@ -22087,6 +22101,7 @@
     method public int getChannelConfiguration();
     method public int getChannelCount();
     method public android.media.AudioFormat getFormat();
+    method public android.os.PersistableBundle getMetrics();
     method public static int getMinBufferSize(int, int, int);
     method public int getNotificationMarkerPosition();
     method public int getPositionNotificationPeriod();
@@ -22135,6 +22150,14 @@
     method public android.media.AudioRecord.Builder setBufferSizeInBytes(int) throws java.lang.IllegalArgumentException;
   }
 
+  public static final class AudioRecord.MetricsConstants {
+    field public static final java.lang.String CHANNELS = "android.media.audiorecord.channels";
+    field public static final java.lang.String ENCODING = "android.media.audiorecord.encoding";
+    field public static final java.lang.String LATENCY = "android.media.audiorecord.latency";
+    field public static final java.lang.String SAMPLERATE = "android.media.audiorecord.samplerate";
+    field public static final java.lang.String SOURCE = "android.media.audiorecord.source";
+  }
+
   public static abstract interface AudioRecord.OnRecordPositionUpdateListener {
     method public abstract void onMarkerReached(android.media.AudioRecord);
     method public abstract void onPeriodicNotification(android.media.AudioRecord);
@@ -22194,6 +22217,7 @@
     method public int getChannelCount();
     method public android.media.AudioFormat getFormat();
     method public static float getMaxVolume();
+    method public android.os.PersistableBundle getMetrics();
     method public static int getMinBufferSize(int, int, int);
     method public static float getMinVolume();
     method protected deprecated int getNativeFrameCount();
@@ -22274,6 +22298,14 @@
     method public android.media.AudioTrack.Builder setTransferMode(int) throws java.lang.IllegalArgumentException;
   }
 
+  public static final class AudioTrack.MetricsConstants {
+    field public static final java.lang.String CHANNELMASK = "android.media.audiorecord.channelmask";
+    field public static final java.lang.String CONTENTTYPE = "android.media.audiotrack.type";
+    field public static final java.lang.String SAMPLERATE = "android.media.audiorecord.samplerate";
+    field public static final java.lang.String STREAMTYPE = "android.media.audiotrack.streamtype";
+    field public static final java.lang.String USAGE = "android.media.audiotrack.usage";
+  }
+
   public static abstract interface AudioTrack.OnPlaybackPositionUpdateListener {
     method public abstract void onMarkerReached(android.media.AudioTrack);
     method public abstract void onPeriodicNotification(android.media.AudioTrack);
@@ -22342,6 +22374,40 @@
     field public static final int QUALITY_MEDIUM = 1; // 0x1
   }
 
+  public final class DataSourceDesc {
+    method public long getEndPosition();
+    method public java.io.FileDescriptor getFileDescriptor();
+    method public long getFileDescriptorLength();
+    method public long getFileDescriptorOffset();
+    method public long getId();
+    method public android.media.Media2DataSource getMedia2DataSource();
+    method public long getStartPosition();
+    method public int getType();
+    method public android.net.Uri getUri();
+    method public android.content.Context getUriContext();
+    method public java.util.List<java.net.HttpCookie> getUriCookies();
+    method public java.util.Map<java.lang.String, java.lang.String> getUriHeaders();
+    field public static final long LONG_MAX = 576460752303423487L; // 0x7ffffffffffffffL
+    field public static final int TYPE_CALLBACK = 1; // 0x1
+    field public static final int TYPE_FD = 2; // 0x2
+    field public static final int TYPE_NONE = 0; // 0x0
+    field public static final int TYPE_URI = 3; // 0x3
+  }
+
+  public static class DataSourceDesc.Builder {
+    ctor public DataSourceDesc.Builder();
+    ctor public DataSourceDesc.Builder(android.media.DataSourceDesc);
+    method public android.media.DataSourceDesc build();
+    method public android.media.DataSourceDesc.Builder setDataSource(android.media.Media2DataSource);
+    method public android.media.DataSourceDesc.Builder setDataSource(java.io.FileDescriptor);
+    method public android.media.DataSourceDesc.Builder setDataSource(java.io.FileDescriptor, long, long);
+    method public android.media.DataSourceDesc.Builder setDataSource(android.content.Context, android.net.Uri);
+    method public android.media.DataSourceDesc.Builder setDataSource(android.content.Context, android.net.Uri, java.util.Map<java.lang.String, java.lang.String>, java.util.List<java.net.HttpCookie>);
+    method public android.media.DataSourceDesc.Builder setEndPosition(long);
+    method public android.media.DataSourceDesc.Builder setId(long);
+    method public android.media.DataSourceDesc.Builder setStartPosition(long);
+  }
+
   public final class DeniedByServerException extends android.media.MediaDrmException {
     ctor public DeniedByServerException(java.lang.String);
   }
@@ -22618,6 +22684,12 @@
     method public abstract void onJetUserIdUpdate(android.media.JetPlayer, int, int);
   }
 
+  public abstract class Media2DataSource implements java.io.Closeable {
+    ctor public Media2DataSource();
+    method public abstract long getSize() throws java.io.IOException;
+    method public abstract int readAt(long, byte[], int, int) throws java.io.IOException;
+  }
+
   public class MediaActionSound {
     ctor public MediaActionSound();
     method public void load(int);
@@ -23072,6 +23144,7 @@
 
   public static final class MediaCodecInfo.EncoderCapabilities {
     method public android.util.Range<java.lang.Integer> getComplexityRange();
+    method public android.util.Range<java.lang.Integer> getQualityRange();
     method public boolean isBitrateModeSupported(int);
     field public static final int BITRATE_MODE_CBR = 2; // 0x2
     field public static final int BITRATE_MODE_CQ = 0; // 0x0
@@ -23176,6 +23249,7 @@
     method public android.media.MediaDrm.KeyRequest getKeyRequest(byte[], byte[], java.lang.String, int, java.util.HashMap<java.lang.String, java.lang.String>) throws android.media.NotProvisionedException;
     method public int getMaxHdcpLevel();
     method public int getMaxSessionCount();
+    method public android.os.PersistableBundle getMetrics();
     method public int getOpenSessionCount();
     method public byte[] getPropertyByteArray(java.lang.String);
     method public java.lang.String getPropertyString(java.lang.String);
@@ -23263,6 +23337,44 @@
     method public java.lang.String getDiagnosticInfo();
   }
 
+  public static final class MediaDrm.MetricsConstants {
+    field public static final java.lang.String CLOSE_SESSION_ERROR_COUNT = "drm.mediadrm.close_session.error.count";
+    field public static final java.lang.String CLOSE_SESSION_ERROR_LIST = "drm.mediadrm.close_session.error.list";
+    field public static final java.lang.String CLOSE_SESSION_OK_COUNT = "drm.mediadrm.close_session.ok.count";
+    field public static final java.lang.String EVENT_KEY_EXPIRED_COUNT = "drm.mediadrm.event.KEY_EXPIRED.count";
+    field public static final java.lang.String EVENT_KEY_NEEDED_COUNT = "drm.mediadrm.event.KEY_NEEDED.count";
+    field public static final java.lang.String EVENT_PROVISION_REQUIRED_COUNT = "drm.mediadrm.event.PROVISION_REQUIRED.count";
+    field public static final java.lang.String EVENT_SESSION_RECLAIMED_COUNT = "drm.mediadrm.event.SESSION_RECLAIMED.count";
+    field public static final java.lang.String EVENT_VENDOR_DEFINED_COUNT = "drm.mediadrm.event.VENDOR_DEFINED.count";
+    field public static final java.lang.String GET_DEVICE_UNIQUE_ID_ERROR_COUNT = "drm.mediadrm.get_device_unique_id.error.count";
+    field public static final java.lang.String GET_DEVICE_UNIQUE_ID_ERROR_LIST = "drm.mediadrm.get_device_unique_id.error.list";
+    field public static final java.lang.String GET_DEVICE_UNIQUE_ID_OK_COUNT = "drm.mediadrm.get_device_unique_id.ok.count";
+    field public static final java.lang.String GET_KEY_REQUEST_ERROR_COUNT = "drm.mediadrm.get_key_request.error.count";
+    field public static final java.lang.String GET_KEY_REQUEST_ERROR_LIST = "drm.mediadrm.get_key_request.error.list";
+    field public static final java.lang.String GET_KEY_REQUEST_OK_COUNT = "drm.mediadrm.get_key_request.ok.count";
+    field public static final java.lang.String GET_KEY_REQUEST_OK_TIME_MICROS = "drm.mediadrm.get_key_request.ok.average_time_micros";
+    field public static final java.lang.String GET_PROVISION_REQUEST_ERROR_COUNT = "drm.mediadrm.get_provision_request.error.count";
+    field public static final java.lang.String GET_PROVISION_REQUEST_ERROR_LIST = "drm.mediadrm.get_provision_request.error.list";
+    field public static final java.lang.String GET_PROVISION_REQUEST_OK_COUNT = "drm.mediadrm.get_provision_request.ok.count";
+    field public static final java.lang.String KEY_STATUS_EXPIRED_COUNT = "drm.mediadrm.key_status.EXPIRED.count";
+    field public static final java.lang.String KEY_STATUS_INTERNAL_ERROR_COUNT = "drm.mediadrm.key_status.INTERNAL_ERROR.count";
+    field public static final java.lang.String KEY_STATUS_OUTPUT_NOT_ALLOWED_COUNT = "drm.mediadrm.key_status_change.OUTPUT_NOT_ALLOWED.count";
+    field public static final java.lang.String KEY_STATUS_PENDING_COUNT = "drm.mediadrm.key_status_change.PENDING.count";
+    field public static final java.lang.String KEY_STATUS_USABLE_COUNT = "drm.mediadrm.key_status_change.USABLE.count";
+    field public static final java.lang.String OPEN_SESSION_ERROR_COUNT = "drm.mediadrm.open_session.error.count";
+    field public static final java.lang.String OPEN_SESSION_ERROR_LIST = "drm.mediadrm.open_session.error.list";
+    field public static final java.lang.String OPEN_SESSION_OK_COUNT = "drm.mediadrm.open_session.ok.count";
+    field public static final java.lang.String PROVIDE_KEY_RESPONSE_ERROR_COUNT = "drm.mediadrm.provide_key_response.error.count";
+    field public static final java.lang.String PROVIDE_KEY_RESPONSE_ERROR_LIST = "drm.mediadrm.provide_key_response.error.list";
+    field public static final java.lang.String PROVIDE_KEY_RESPONSE_OK_COUNT = "drm.mediadrm.provide_key_response.ok.count";
+    field public static final java.lang.String PROVIDE_KEY_RESPONSE_OK_TIME_MICROS = "drm.mediadrm.provide_key_response.ok.average_time_micros";
+    field public static final java.lang.String PROVIDE_PROVISION_RESPONSE_ERROR_COUNT = "drm.mediadrm.provide_provision_response.error.count";
+    field public static final java.lang.String PROVIDE_PROVISION_RESPONSE_ERROR_LIST = "drm.mediadrm.provide_provision_response.error.list";
+    field public static final java.lang.String PROVIDE_PROVISION_RESPONSE_OK_COUNT = "drm.mediadrm.provide_provision_response.ok.count";
+    field public static final java.lang.String SESSION_END_TIMES_MS = "drm.mediadrm.session_end_times_ms";
+    field public static final java.lang.String SESSION_START_TIMES_MS = "drm.mediadrm.session_start_times_ms";
+  }
+
   public static abstract interface MediaDrm.OnEventListener {
     method public abstract void onEvent(android.media.MediaDrm, byte[], int, int, byte[]);
   }
@@ -23302,6 +23414,7 @@
     method public java.util.Map<java.util.UUID, byte[]> getPsshInfo();
     method public boolean getSampleCryptoInfo(android.media.MediaCodec.CryptoInfo);
     method public int getSampleFlags();
+    method public long getSampleSize();
     method public long getSampleTime();
     method public int getSampleTrackIndex();
     method public final int getTrackCount();
@@ -23414,6 +23527,7 @@
     field public static final java.lang.String KEY_PRIORITY = "priority";
     field public static final java.lang.String KEY_PROFILE = "profile";
     field public static final java.lang.String KEY_PUSH_BLANK_BUFFERS_ON_STOP = "push-blank-buffers-on-shutdown";
+    field public static final java.lang.String KEY_QUALITY = "quality";
     field public static final java.lang.String KEY_REPEAT_PREVIOUS_FRAME_AFTER = "repeat-previous-frame-after";
     field public static final java.lang.String KEY_ROTATION = "rotation-degrees";
     field public static final java.lang.String KEY_SAMPLE_RATE = "sample-rate";
@@ -23814,6 +23928,169 @@
     field public static final int MEDIA_TRACK_TYPE_VIDEO = 1; // 0x1
   }
 
+  public abstract class MediaPlayer2 implements android.media.AudioRouting java.lang.AutoCloseable {
+    method public abstract void addPlaylistItem(int, android.media.DataSourceDesc);
+    method public abstract void attachAuxEffect(int);
+    method public abstract void clearPendingCommands();
+    method public abstract void close();
+    method public static final android.media.MediaPlayer2 create();
+    method public abstract void deselectTrack(int);
+    method public abstract android.media.DataSourceDesc editPlaylistItem(int, android.media.DataSourceDesc);
+    method public abstract int getAudioSessionId();
+    method public abstract android.media.DataSourceDesc getCurrentDataSource();
+    method public abstract int getCurrentPlaylistItemIndex();
+    method public abstract int getCurrentPosition();
+    method public abstract android.media.MediaPlayer2.DrmInfo getDrmInfo();
+    method public abstract java.lang.String getDrmPropertyString(java.lang.String) throws android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract int getDuration();
+    method public abstract android.media.MediaDrm.KeyRequest getKeyRequest(byte[], byte[], java.lang.String, int, java.util.Map<java.lang.String, java.lang.String>) throws android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract int getLoopingMode();
+    method public abstract android.os.PersistableBundle getMetrics();
+    method public abstract android.media.PlaybackParams getPlaybackParams();
+    method public abstract java.util.List<android.media.DataSourceDesc> getPlaylist();
+    method public abstract int getSelectedTrack(int);
+    method public abstract android.media.SyncParams getSyncParams();
+    method public abstract android.media.MediaTimestamp getTimestamp();
+    method public abstract java.util.List<android.media.MediaPlayer2.TrackInfo> getTrackInfo();
+    method public abstract int getVideoHeight();
+    method public abstract int getVideoWidth();
+    method public abstract boolean isPlaying();
+    method public abstract void movePlaylistItem(int, int);
+    method public abstract void pause();
+    method public abstract void play();
+    method public abstract void prepareAsync();
+    method public abstract void prepareDrm(java.util.UUID) throws android.media.MediaPlayer2.ProvisioningNetworkErrorException, android.media.MediaPlayer2.ProvisioningServerErrorException, android.media.ResourceBusyException, android.media.UnsupportedSchemeException;
+    method public abstract byte[] provideKeyResponse(byte[], byte[]) throws android.media.DeniedByServerException, android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract void registerDrmEventCallback(java.util.concurrent.Executor, android.media.MediaPlayer2.DrmEventCallback);
+    method public abstract void registerEventCallback(java.util.concurrent.Executor, android.media.MediaPlayer2.EventCallback);
+    method public abstract void releaseDrm() throws android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract android.media.DataSourceDesc removePlaylistItem(int);
+    method public abstract void reset();
+    method public abstract void restoreKeys(byte[]) throws android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract void seekTo(long, int);
+    method public abstract void selectTrack(int);
+    method public abstract void setAudioAttributes(android.media.AudioAttributes);
+    method public abstract void setAudioSessionId(int);
+    method public abstract void setAuxEffectSendLevel(float);
+    method public abstract void setCurrentPlaylistItem(int);
+    method public abstract void setDataSource(android.media.DataSourceDesc) throws java.io.IOException;
+    method public abstract void setDrmPropertyString(java.lang.String, java.lang.String) throws android.media.MediaPlayer2.NoDrmSchemeException;
+    method public abstract void setLoopingMode(int);
+    method public abstract void setNextPlaylistItem(int);
+    method public abstract void setOnDrmConfigHelper(android.media.MediaPlayer2.OnDrmConfigHelper);
+    method public abstract void setPlaybackParams(android.media.PlaybackParams);
+    method public abstract void setPlaylist(java.util.List<android.media.DataSourceDesc>, int) throws java.io.IOException;
+    method public abstract void setSurface(android.view.Surface);
+    method public abstract void setSyncParams(android.media.SyncParams);
+    method public abstract void setVolume(float, float);
+    method public abstract void unregisterDrmEventCallback(android.media.MediaPlayer2.DrmEventCallback);
+    method public abstract void unregisterEventCallback(android.media.MediaPlayer2.EventCallback);
+    field public static final int LOOPING_MODE_FULL = 1; // 0x1
+    field public static final int LOOPING_MODE_NONE = 0; // 0x0
+    field public static final int LOOPING_MODE_SHUFFLE = 3; // 0x3
+    field public static final int LOOPING_MODE_SINGLE = 2; // 0x2
+    field public static final int MEDIA_ERROR_IO = -1004; // 0xfffffc14
+    field public static final int MEDIA_ERROR_MALFORMED = -1007; // 0xfffffc11
+    field public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200; // 0xc8
+    field public static final int MEDIA_ERROR_TIMED_OUT = -110; // 0xffffff92
+    field public static final int MEDIA_ERROR_UNKNOWN = 1; // 0x1
+    field public static final int MEDIA_ERROR_UNSUPPORTED = -1010; // 0xfffffc0e
+    field public static final int MEDIA_INFO_AUDIO_NOT_PLAYING = 804; // 0x324
+    field public static final int MEDIA_INFO_AUDIO_RENDERING_START = 4; // 0x4
+    field public static final int MEDIA_INFO_BAD_INTERLEAVING = 800; // 0x320
+    field public static final int MEDIA_INFO_BUFFERING_END = 702; // 0x2be
+    field public static final int MEDIA_INFO_BUFFERING_START = 701; // 0x2bd
+    field public static final int MEDIA_INFO_COMPLETE_CALL_PAUSE = 102; // 0x66
+    field public static final int MEDIA_INFO_COMPLETE_CALL_PLAY = 101; // 0x65
+    field public static final int MEDIA_INFO_COMPLETE_CALL_SEEK = 103; // 0x67
+    field public static final int MEDIA_INFO_METADATA_UPDATE = 802; // 0x322
+    field public static final int MEDIA_INFO_NOT_SEEKABLE = 801; // 0x321
+    field public static final int MEDIA_INFO_PLAYBACK_COMPLETE = 5; // 0x5
+    field public static final int MEDIA_INFO_PLAYLIST_END = 6; // 0x6
+    field public static final int MEDIA_INFO_PREPARED = 100; // 0x64
+    field public static final int MEDIA_INFO_STARTED_AS_NEXT = 2; // 0x2
+    field public static final int MEDIA_INFO_SUBTITLE_TIMED_OUT = 902; // 0x386
+    field public static final int MEDIA_INFO_UNKNOWN = 1; // 0x1
+    field public static final int MEDIA_INFO_UNSUPPORTED_SUBTITLE = 901; // 0x385
+    field public static final int MEDIA_INFO_VIDEO_NOT_PLAYING = 805; // 0x325
+    field public static final int MEDIA_INFO_VIDEO_RENDERING_START = 3; // 0x3
+    field public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING = 700; // 0x2bc
+    field public static final int PREPARE_DRM_STATUS_PREPARATION_ERROR = 3; // 0x3
+    field public static final int PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR = 1; // 0x1
+    field public static final int PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR = 2; // 0x2
+    field public static final int PREPARE_DRM_STATUS_SUCCESS = 0; // 0x0
+    field public static final int SEEK_CLOSEST = 3; // 0x3
+    field public static final int SEEK_CLOSEST_SYNC = 2; // 0x2
+    field public static final int SEEK_NEXT_SYNC = 1; // 0x1
+    field public static final int SEEK_PREVIOUS_SYNC = 0; // 0x0
+    field public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT = 1; // 0x1
+  }
+
+  public static abstract class MediaPlayer2.DrmEventCallback {
+    ctor public MediaPlayer2.DrmEventCallback();
+    method public void onDrmInfo(android.media.MediaPlayer2, android.media.MediaPlayer2.DrmInfo);
+    method public void onDrmPrepared(android.media.MediaPlayer2, int);
+  }
+
+  public static abstract class MediaPlayer2.DrmInfo {
+    ctor public MediaPlayer2.DrmInfo();
+    method public abstract java.util.Map<java.util.UUID, byte[]> getPssh();
+    method public abstract java.util.List<java.util.UUID> getSupportedSchemes();
+  }
+
+  public static abstract class MediaPlayer2.EventCallback {
+    ctor public MediaPlayer2.EventCallback();
+    method public void onBufferingUpdate(android.media.MediaPlayer2, long, int);
+    method public void onError(android.media.MediaPlayer2, long, int, int);
+    method public void onInfo(android.media.MediaPlayer2, long, int, int);
+    method public void onTimedMetaDataAvailable(android.media.MediaPlayer2, long, android.media.TimedMetaData);
+    method public void onVideoSizeChanged(android.media.MediaPlayer2, long, int, int);
+  }
+
+  public static final class MediaPlayer2.MetricsConstants {
+    field public static final java.lang.String CODEC_AUDIO = "android.media.mediaplayer.audio.codec";
+    field public static final java.lang.String CODEC_VIDEO = "android.media.mediaplayer.video.codec";
+    field public static final java.lang.String DURATION = "android.media.mediaplayer.durationMs";
+    field public static final java.lang.String ERRORS = "android.media.mediaplayer.err";
+    field public static final java.lang.String ERROR_CODE = "android.media.mediaplayer.errcode";
+    field public static final java.lang.String FRAMES = "android.media.mediaplayer.frames";
+    field public static final java.lang.String FRAMES_DROPPED = "android.media.mediaplayer.dropped";
+    field public static final java.lang.String HEIGHT = "android.media.mediaplayer.height";
+    field public static final java.lang.String MIME_TYPE_AUDIO = "android.media.mediaplayer.audio.mime";
+    field public static final java.lang.String MIME_TYPE_VIDEO = "android.media.mediaplayer.video.mime";
+    field public static final java.lang.String PLAYING = "android.media.mediaplayer.playingMs";
+    field public static final java.lang.String WIDTH = "android.media.mediaplayer.width";
+  }
+
+  public static abstract class MediaPlayer2.NoDrmSchemeException extends android.media.MediaDrmException {
+    ctor protected MediaPlayer2.NoDrmSchemeException(java.lang.String);
+  }
+
+  public static abstract interface MediaPlayer2.OnDrmConfigHelper {
+    method public abstract void onDrmConfig(android.media.MediaPlayer2);
+  }
+
+  public static abstract class MediaPlayer2.ProvisioningNetworkErrorException extends android.media.MediaDrmException {
+    ctor protected MediaPlayer2.ProvisioningNetworkErrorException(java.lang.String);
+  }
+
+  public static abstract class MediaPlayer2.ProvisioningServerErrorException extends android.media.MediaDrmException {
+    ctor protected MediaPlayer2.ProvisioningServerErrorException(java.lang.String);
+  }
+
+  public static abstract class MediaPlayer2.TrackInfo {
+    ctor public MediaPlayer2.TrackInfo();
+    method public abstract android.media.MediaFormat getFormat();
+    method public abstract java.lang.String getLanguage();
+    method public abstract int getTrackType();
+    method public abstract java.lang.String toString();
+    field public static final int MEDIA_TRACK_TYPE_AUDIO = 2; // 0x2
+    field public static final int MEDIA_TRACK_TYPE_METADATA = 5; // 0x5
+    field public static final int MEDIA_TRACK_TYPE_SUBTITLE = 4; // 0x4
+    field public static final int MEDIA_TRACK_TYPE_UNKNOWN = 0; // 0x0
+    field public static final int MEDIA_TRACK_TYPE_VIDEO = 1; // 0x1
+  }
+
   public class MediaRecorder implements android.media.AudioRouting {
     ctor public MediaRecorder();
     method public void addOnRoutingChangedListener(android.media.AudioRouting.OnRoutingChangedListener, android.os.Handler);
@@ -27380,14 +27657,14 @@
     field public java.lang.String providerFriendlyName;
     field public long[] roamingConsortiumIds;
     field public int status;
-    field public java.lang.String[] wepKeys;
-    field public int wepTxKeyIndex;
+    field public deprecated java.lang.String[] wepKeys;
+    field public deprecated int wepTxKeyIndex;
   }
 
   public static class WifiConfiguration.AuthAlgorithm {
     field public static final int LEAP = 2; // 0x2
     field public static final int OPEN = 0; // 0x0
-    field public static final int SHARED = 1; // 0x1
+    field public static final deprecated int SHARED = 1; // 0x1
     field public static final java.lang.String[] strings;
     field public static final java.lang.String varName = "auth_alg";
   }
@@ -27395,8 +27672,8 @@
   public static class WifiConfiguration.GroupCipher {
     field public static final int CCMP = 3; // 0x3
     field public static final int TKIP = 2; // 0x2
-    field public static final int WEP104 = 1; // 0x1
-    field public static final int WEP40 = 0; // 0x0
+    field public static final deprecated int WEP104 = 1; // 0x1
+    field public static final deprecated int WEP40 = 0; // 0x0
     field public static final java.lang.String[] strings;
     field public static final java.lang.String varName = "group";
   }
@@ -27405,7 +27682,7 @@
     field public static final int IEEE8021X = 3; // 0x3
     field public static final int NONE = 0; // 0x0
     field public static final int WPA_EAP = 2; // 0x2
-    field public static final int WPA_PSK = 1; // 0x1
+    field public static final deprecated int WPA_PSK = 1; // 0x1
     field public static final java.lang.String[] strings;
     field public static final java.lang.String varName = "key_mgmt";
   }
@@ -27413,14 +27690,14 @@
   public static class WifiConfiguration.PairwiseCipher {
     field public static final int CCMP = 2; // 0x2
     field public static final int NONE = 0; // 0x0
-    field public static final int TKIP = 1; // 0x1
+    field public static final deprecated int TKIP = 1; // 0x1
     field public static final java.lang.String[] strings;
     field public static final java.lang.String varName = "pairwise";
   }
 
   public static class WifiConfiguration.Protocol {
     field public static final int RSN = 1; // 0x1
-    field public static final int WPA = 0; // 0x0
+    field public static final deprecated int WPA = 0; // 0x0
     field public static final java.lang.String[] strings;
     field public static final java.lang.String varName = "proto";
   }
@@ -37891,6 +38168,7 @@
     method public boolean isInvalidatedByBiometricEnrollment();
     method public boolean isRandomizedEncryptionRequired();
     method public boolean isStrongBoxBacked();
+    method public boolean isTrustedUserPresenceRequired();
     method public boolean isUserAuthenticationRequired();
     method public boolean isUserAuthenticationValidWhileOnBody();
   }
@@ -37916,6 +38194,7 @@
     method public android.security.keystore.KeyGenParameterSpec.Builder setKeyValidityStart(java.util.Date);
     method public android.security.keystore.KeyGenParameterSpec.Builder setRandomizedEncryptionRequired(boolean);
     method public android.security.keystore.KeyGenParameterSpec.Builder setSignaturePaddings(java.lang.String...);
+    method public android.security.keystore.KeyGenParameterSpec.Builder setTrustedUserPresenceRequired(boolean);
     method public android.security.keystore.KeyGenParameterSpec.Builder setUserAuthenticationRequired(boolean);
     method public android.security.keystore.KeyGenParameterSpec.Builder setUserAuthenticationValidWhileOnBody(boolean);
     method public android.security.keystore.KeyGenParameterSpec.Builder setUserAuthenticationValidityDurationSeconds(int);
@@ -37936,6 +38215,7 @@
     method public int getUserAuthenticationValidityDurationSeconds();
     method public boolean isInsideSecureHardware();
     method public boolean isInvalidatedByBiometricEnrollment();
+    method public boolean isTrustedUserPresenceRequired();
     method public boolean isUserAuthenticationRequired();
     method public boolean isUserAuthenticationRequirementEnforcedBySecureHardware();
     method public boolean isUserAuthenticationValidWhileOnBody();
@@ -38027,7 +38307,6 @@
   }
 
   public class StrongBoxUnavailableException extends java.security.ProviderException {
-    ctor public StrongBoxUnavailableException();
   }
 
   public class UserNotAuthenticatedException extends java.security.InvalidKeyException {
@@ -38036,6 +38315,12 @@
     ctor public UserNotAuthenticatedException(java.lang.String, java.lang.Throwable);
   }
 
+  public class UserPresenceUnavailableException extends java.security.InvalidAlgorithmParameterException {
+    ctor public UserPresenceUnavailableException();
+    ctor public UserPresenceUnavailableException(java.lang.String);
+    ctor public UserPresenceUnavailableException(java.lang.String, java.lang.Throwable);
+  }
+
   public class WrappedKeyEntry implements java.security.KeyStore.Entry {
     ctor public WrappedKeyEntry(byte[], java.lang.String, java.lang.String, java.security.spec.AlgorithmParameterSpec);
     method public java.security.spec.AlgorithmParameterSpec getAlgorithmParameterSpec();
@@ -39273,11 +39558,6 @@
     field public final int errno;
   }
 
-  public class Int32Ref {
-    ctor public Int32Ref(int);
-    field public int value;
-  }
-
   public class Int64Ref {
     ctor public Int64Ref(long);
     field public long value;
@@ -39377,7 +39657,6 @@
     method public static int umask(int);
     method public static android.system.StructUtsname uname();
     method public static void unsetenv(java.lang.String) throws android.system.ErrnoException;
-    method public static int waitpid(int, android.system.Int32Ref, int) throws android.system.ErrnoException;
     method public static int write(java.io.FileDescriptor, java.nio.ByteBuffer) throws android.system.ErrnoException, java.io.InterruptedIOException;
     method public static int write(java.io.FileDescriptor, byte[], int, int) throws android.system.ErrnoException, java.io.InterruptedIOException;
     method public static int writev(java.io.FileDescriptor, java.lang.Object[], int[], int[]) throws android.system.ErrnoException, java.io.InterruptedIOException;
@@ -40202,6 +40481,7 @@
     method public void onCallEvent(java.lang.String, android.os.Bundle);
     method public void onDisconnect();
     method public void onExtrasChanged(android.os.Bundle);
+    method public void onHandoverComplete();
     method public void onHold();
     method public void onPlayDtmfTone(char);
     method public void onPostDialContinue(boolean);
@@ -40693,6 +40973,7 @@
     field public static final deprecated java.lang.String ACTION_INCOMING_CALL = "android.telecom.action.INCOMING_CALL";
     field public static final java.lang.String ACTION_PHONE_ACCOUNT_REGISTERED = "android.telecom.action.PHONE_ACCOUNT_REGISTERED";
     field public static final java.lang.String ACTION_PHONE_ACCOUNT_UNREGISTERED = "android.telecom.action.PHONE_ACCOUNT_UNREGISTERED";
+    field public static final java.lang.String ACTION_SHOW_ASSISTED_DIALING_SETTINGS = "android.telecom.action.SHOW_ASSISTED_DIALING_SETTINGS";
     field public static final java.lang.String ACTION_SHOW_CALL_ACCESSIBILITY_SETTINGS = "android.telecom.action.SHOW_CALL_ACCESSIBILITY_SETTINGS";
     field public static final java.lang.String ACTION_SHOW_CALL_SETTINGS = "android.telecom.action.SHOW_CALL_SETTINGS";
     field public static final java.lang.String ACTION_SHOW_MISSED_CALLS_NOTIFICATION = "android.telecom.action.SHOW_MISSED_CALLS_NOTIFICATION";
@@ -40789,6 +41070,7 @@
     field public static final int EUTRAN = 3; // 0x3
     field public static final int GERAN = 1; // 0x1
     field public static final int IWLAN = 5; // 0x5
+    field public static final int UNKNOWN = 0; // 0x0
     field public static final int UTRAN = 2; // 0x2
   }
 
@@ -40893,6 +41175,8 @@
     method public void notifyConfigChangedForSubId(int);
     field public static final java.lang.String ACTION_CARRIER_CONFIG_CHANGED = "android.telephony.action.CARRIER_CONFIG_CHANGED";
     field public static final int DATA_CYCLE_THRESHOLD_DISABLED = -2; // 0xfffffffe
+    field public static final java.lang.String EXTRA_SLOT_INDEX = "android.telephony.extra.SLOT_INDEX";
+    field public static final java.lang.String EXTRA_SUBSCRIPTION_INDEX = "android.telephony.extra.SUBSCRIPTION_INDEX";
     field public static final java.lang.String KEY_ADDITIONAL_CALL_SETTING_BOOL = "additional_call_setting_bool";
     field public static final java.lang.String KEY_ALLOW_ADDING_APNS_BOOL = "allow_adding_apns_bool";
     field public static final java.lang.String KEY_ALLOW_ADD_CALL_DURING_VIDEO_CALL_BOOL = "allow_add_call_during_video_call";
@@ -41075,6 +41359,7 @@
   }
 
   public final class CellIdentityLte extends android.telephony.CellIdentity {
+    method public int getBandwidth();
     method public int getCi();
     method public int getEarfcn();
     method public deprecated int getMcc();
@@ -41118,8 +41403,13 @@
 
   public abstract class CellInfo implements android.os.Parcelable {
     method public int describeContents();
+    method public int getCellConnectionStatus();
     method public long getTimeStamp();
     method public boolean isRegistered();
+    field public static final int CONNECTION_NONE = 0; // 0x0
+    field public static final int CONNECTION_PRIMARY_SERVING = 1; // 0x1
+    field public static final int CONNECTION_SECONDARY_SERVING = 2; // 0x2
+    field public static final int CONNECTION_UNKNOWN = 2147483647; // 0x7fffffff
     field public static final android.os.Parcelable.Creator<android.telephony.CellInfo> CREATOR;
   }
 
@@ -41432,6 +41722,9 @@
     ctor public ServiceState(android.os.Parcel);
     method protected void copyFrom(android.telephony.ServiceState);
     method public int describeContents();
+    method public int[] getCellBandwidths();
+    method public int getChannelNumber();
+    method public int getDuplexMode();
     method public boolean getIsManualSelection();
     method public int getNetworkId();
     method public java.lang.String getOperatorAlphaLong();
@@ -41448,6 +41741,9 @@
     method public void setStateOutOfService();
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.telephony.ServiceState> CREATOR;
+    field public static final int DUPLEX_MODE_FDD = 1; // 0x1
+    field public static final int DUPLEX_MODE_TDD = 2; // 0x2
+    field public static final int DUPLEX_MODE_UNKNOWN = 0; // 0x0
     field public static final int STATE_EMERGENCY_ONLY = 2; // 0x2
     field public static final int STATE_IN_SERVICE = 0; // 0x0
     field public static final int STATE_OUT_OF_SERVICE = 1; // 0x1
@@ -44670,42 +44966,42 @@
     method public void previousMonth();
   }
 
-  public final class MutableBoolean {
+  public final deprecated class MutableBoolean {
     ctor public MutableBoolean(boolean);
     field public boolean value;
   }
 
-  public final class MutableByte {
+  public final deprecated class MutableByte {
     ctor public MutableByte(byte);
     field public byte value;
   }
 
-  public final class MutableChar {
+  public final deprecated class MutableChar {
     ctor public MutableChar(char);
     field public char value;
   }
 
-  public final class MutableDouble {
+  public final deprecated class MutableDouble {
     ctor public MutableDouble(double);
     field public double value;
   }
 
-  public final class MutableFloat {
+  public final deprecated class MutableFloat {
     ctor public MutableFloat(float);
     field public float value;
   }
 
-  public final class MutableInt {
+  public final deprecated class MutableInt {
     ctor public MutableInt(int);
     field public int value;
   }
 
-  public final class MutableLong {
+  public final deprecated class MutableLong {
     ctor public MutableLong(long);
     field public long value;
   }
 
-  public final class MutableShort {
+  public final deprecated class MutableShort {
     ctor public MutableShort(short);
     field public short value;
   }
@@ -48480,6 +48776,7 @@
     method public java.lang.CharSequence getText();
     method public int getTextSelectionEnd();
     method public int getTextSelectionStart();
+    method public java.lang.CharSequence getTooltipText();
     method public android.view.accessibility.AccessibilityNodeInfo getTraversalAfter();
     method public android.view.accessibility.AccessibilityNodeInfo getTraversalBefore();
     method public java.lang.String getViewIdResourceName();
@@ -48567,6 +48864,7 @@
     method public void setSource(android.view.View, int);
     method public void setText(java.lang.CharSequence);
     method public void setTextSelection(int, int);
+    method public void setTooltipText(java.lang.CharSequence);
     method public void setTraversalAfter(android.view.View);
     method public void setTraversalAfter(android.view.View, int);
     method public void setTraversalBefore(android.view.View);
@@ -48636,6 +48934,7 @@
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_DISMISS;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_EXPAND;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_FOCUS;
+    field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_HIDE_TOOLTIP;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_LONG_CLICK;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_MOVE_WINDOW;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_NEXT_AT_MOVEMENT_GRANULARITY;
@@ -48655,6 +48954,7 @@
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_SET_SELECTION;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_SET_TEXT;
     field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_SHOW_ON_SCREEN;
+    field public static final android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction ACTION_SHOW_TOOLTIP;
   }
 
   public static final class AccessibilityNodeInfo.CollectionInfo {
@@ -49373,6 +49673,7 @@
     method public abstract boolean performEditorAction(int);
     method public abstract boolean performPrivateCommand(java.lang.String, android.os.Bundle);
     method public abstract boolean reportFullscreenMode(boolean);
+    method public default void reportLanguageHint(android.os.LocaleList);
     method public abstract boolean requestCursorUpdates(int);
     method public abstract boolean sendKeyEvent(android.view.KeyEvent);
     method public abstract boolean setComposingRegion(int, int);
@@ -49614,7 +49915,9 @@
     ctor public TextClassification.Options();
     method public int describeContents();
     method public android.os.LocaleList getDefaultLocales();
+    method public java.util.Calendar getReferenceTime();
     method public android.view.textclassifier.TextClassification.Options setDefaultLocales(android.os.LocaleList);
+    method public android.view.textclassifier.TextClassification.Options setReferenceTime(java.util.Calendar);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.view.textclassifier.TextClassification.Options> CREATOR;
   }
@@ -49639,7 +49942,10 @@
     field public static final int ENTITY_PRESET_NONE = 1; // 0x1
     field public static final android.view.textclassifier.TextClassifier NO_OP;
     field public static final java.lang.String TYPE_ADDRESS = "address";
+    field public static final java.lang.String TYPE_DATE = "date";
+    field public static final java.lang.String TYPE_DATE_TIME = "datetime";
     field public static final java.lang.String TYPE_EMAIL = "email";
+    field public static final java.lang.String TYPE_FLIGHT_NUMBER = "flight";
     field public static final java.lang.String TYPE_OTHER = "other";
     field public static final java.lang.String TYPE_PHONE = "phone";
     field public static final java.lang.String TYPE_UNKNOWN = "";
diff --git a/api/system-current.txt b/api/system-current.txt
index 14320c4..6be004c 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -253,6 +253,7 @@
   public class AppOpsManager {
     method public static java.lang.String[] getOpStrs();
     method public void setUidMode(java.lang.String, int, int);
+    field public static final java.lang.String OPSTR_ACCEPT_HANDOVER = "android:accept_handover";
     field public static final java.lang.String OPSTR_ACCESS_NOTIFICATIONS = "android:access_notifications";
     field public static final java.lang.String OPSTR_ACTIVATE_VPN = "android:activate_vpn";
     field public static final java.lang.String OPSTR_ASSIST_SCREENSHOT = "android:assist_screenshot";
@@ -354,6 +355,20 @@
     method public org.json.JSONObject toJson() throws org.json.JSONException;
   }
 
+  public final class StatsManager {
+    method public boolean addConfiguration(long, byte[], java.lang.String, java.lang.String);
+    method public byte[] getData(long);
+    method public byte[] getMetadata();
+    method public boolean removeConfiguration(long);
+    method public boolean setBroadcastSubscriber(long, long, android.app.PendingIntent);
+    field public static final java.lang.String ACTION_STATSD_STARTED = "android.app.action.STATSD_STARTED";
+    field public static final java.lang.String EXTRA_STATS_CONFIG_KEY = "android.app.extra.STATS_CONFIG_KEY";
+    field public static final java.lang.String EXTRA_STATS_CONFIG_UID = "android.app.extra.STATS_CONFIG_UID";
+    field public static final java.lang.String EXTRA_STATS_DIMENSIONS_VALUE = "android.app.extra.STATS_DIMENSIONS_VALUE";
+    field public static final java.lang.String EXTRA_STATS_SUBSCRIPTION_ID = "android.app.extra.STATS_SUBSCRIPTION_ID";
+    field public static final java.lang.String EXTRA_STATS_SUBSCRIPTION_RULE_ID = "android.app.extra.STATS_SUBSCRIPTION_RULE_ID";
+  }
+
   public class VrManager {
     method public void setAndBindVrCompositor(android.content.ComponentName);
     method public void setPersistentVrModeEnabled(boolean);
@@ -382,7 +397,6 @@
     method public java.lang.CharSequence getDeviceOwnerOrganizationName();
     method public java.util.List<java.lang.String> getPermittedAccessibilityServices(int);
     method public java.util.List<java.lang.String> getPermittedInputMethodsForCurrentUser();
-    method public java.lang.CharSequence getPrintingDisabledReason();
     method public android.content.ComponentName getProfileOwner() throws java.lang.IllegalArgumentException;
     method public java.lang.String getProfileOwnerNameAsUser(int) throws java.lang.IllegalArgumentException;
     method public int getUserProvisioningState();
@@ -437,7 +451,7 @@
     method public java.lang.String[] listAllTransports();
     method public int requestBackup(java.lang.String[], android.app.backup.BackupObserver);
     method public int requestBackup(java.lang.String[], android.app.backup.BackupObserver, android.app.backup.BackupManagerMonitor, int);
-    method public int requestRestore(android.app.backup.RestoreObserver, android.app.backup.BackupManagerMonitor);
+    method public deprecated int requestRestore(android.app.backup.RestoreObserver, android.app.backup.BackupManagerMonitor);
     method public deprecated java.lang.String selectBackupTransport(java.lang.String);
     method public void selectBackupTransport(android.content.ComponentName, android.app.backup.SelectBackupTransportCallback);
     method public void setAutoRestore(boolean);
@@ -514,6 +528,7 @@
     field public static final int LOG_EVENT_ID_SIGNATURE_MISMATCH = 29; // 0x1d
     field public static final int LOG_EVENT_ID_SYSTEM_APP_NO_AGENT = 38; // 0x26
     field public static final int LOG_EVENT_ID_TRANSPORT_IS_NULL = 50; // 0x32
+    field public static final int LOG_EVENT_ID_TRANSPORT_NON_INCREMENTAL_BACKUP_REQUIRED = 51; // 0x33
     field public static final int LOG_EVENT_ID_UNKNOWN_VERSION = 44; // 0x2c
     field public static final int LOG_EVENT_ID_VERSIONS_MATCH = 35; // 0x23
     field public static final int LOG_EVENT_ID_VERSION_OF_BACKUP_OLDER = 36; // 0x24
@@ -555,6 +570,7 @@
     method public long getCurrentRestoreSet();
     method public int getNextFullRestoreDataChunk(android.os.ParcelFileDescriptor);
     method public int getRestoreData(android.os.ParcelFileDescriptor);
+    method public int getTransportFlags();
     method public int initializeDevice();
     method public boolean isAppEligibleForBackup(android.content.pm.PackageInfo, boolean);
     method public java.lang.String name();
@@ -570,9 +586,12 @@
     method public java.lang.String transportDirName();
     field public static final int AGENT_ERROR = -1003; // 0xfffffc15
     field public static final int AGENT_UNKNOWN = -1004; // 0xfffffc14
+    field public static final int FLAG_INCREMENTAL = 2; // 0x2
+    field public static final int FLAG_NON_INCREMENTAL = 4; // 0x4
     field public static final int FLAG_USER_INITIATED = 1; // 0x1
     field public static final int NO_MORE_DATA = -1; // 0xffffffff
     field public static final int TRANSPORT_ERROR = -1000; // 0xfffffc18
+    field public static final int TRANSPORT_NON_INCREMENTAL_BACKUP_REQUIRED = -1006; // 0xfffffc12
     field public static final int TRANSPORT_NOT_INITIALIZED = -1001; // 0xfffffc17
     field public static final int TRANSPORT_OK = 0; // 0x0
     field public static final int TRANSPORT_PACKAGE_REJECTED = -1002; // 0xfffffc16
@@ -1025,8 +1044,10 @@
 package android.content.pm.dex {
 
   public class ArtManager {
-    method public boolean isRuntimeProfilingEnabled();
-    method public void snapshotRuntimeProfile(java.lang.String, java.lang.String, android.content.pm.dex.ArtManager.SnapshotRuntimeProfileCallback, android.os.Handler);
+    method public boolean isRuntimeProfilingEnabled(int);
+    method public void snapshotRuntimeProfile(int, java.lang.String, java.lang.String, java.util.concurrent.Executor, android.content.pm.dex.ArtManager.SnapshotRuntimeProfileCallback);
+    field public static final int PROFILE_APPS = 0; // 0x0
+    field public static final int PROFILE_BOOT_IMAGE = 1; // 0x1
     field public static final int SNAPSHOT_FAILED_CODE_PATH_NOT_FOUND = 1; // 0x1
     field public static final int SNAPSHOT_FAILED_INTERNAL_ERROR = 2; // 0x2
     field public static final int SNAPSHOT_FAILED_PACKAGE_NOT_FOUND = 0; // 0x0
@@ -1738,6 +1759,27 @@
 
 package android.hardware.radio {
 
+  public final class Announcement implements android.os.Parcelable {
+    method public int describeContents();
+    method public android.hardware.radio.ProgramSelector getSelector();
+    method public int getType();
+    method public java.util.Map<java.lang.String, java.lang.String> getVendorInfo();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.hardware.radio.Announcement> CREATOR;
+    field public static final int TYPE_EMERGENCY = 1; // 0x1
+    field public static final int TYPE_EVENT = 6; // 0x6
+    field public static final int TYPE_MISC = 8; // 0x8
+    field public static final int TYPE_NEWS = 5; // 0x5
+    field public static final int TYPE_SPORT = 7; // 0x7
+    field public static final int TYPE_TRAFFIC = 3; // 0x3
+    field public static final int TYPE_WARNING = 2; // 0x2
+    field public static final int TYPE_WEATHER = 4; // 0x4
+  }
+
+  public static abstract interface Announcement.OnListUpdatedListener {
+    method public abstract void onListUpdated(java.util.Collection<android.hardware.radio.Announcement>);
+  }
+
   public final class ProgramList implements java.lang.AutoCloseable {
     method public void addOnCompleteListener(java.util.concurrent.Executor, android.hardware.radio.ProgramList.OnCompleteListener);
     method public void addOnCompleteListener(android.hardware.radio.ProgramList.OnCompleteListener);
@@ -1782,6 +1824,7 @@
     method public deprecated int getProgramType();
     method public android.hardware.radio.ProgramSelector.Identifier[] getSecondaryIds();
     method public deprecated long[] getVendorIds();
+    method public android.hardware.radio.ProgramSelector withSecondaryPreferred(android.hardware.radio.ProgramSelector.Identifier);
     method public void writeToParcel(android.os.Parcel, int);
     field public static final android.os.Parcelable.Creator<android.hardware.radio.ProgramSelector> CREATOR;
     field public static final int IDENTIFIER_TYPE_AMFM_FREQUENCY = 1; // 0x1
@@ -1832,8 +1875,11 @@
   }
 
   public class RadioManager {
+    method public void addAnnouncementListener(java.util.Set<java.lang.Integer>, android.hardware.radio.Announcement.OnListUpdatedListener);
+    method public void addAnnouncementListener(java.util.concurrent.Executor, java.util.Set<java.lang.Integer>, android.hardware.radio.Announcement.OnListUpdatedListener);
     method public int listModules(java.util.List<android.hardware.radio.RadioManager.ModuleProperties>);
     method public android.hardware.radio.RadioTuner openTuner(int, android.hardware.radio.RadioManager.BandConfig, boolean, android.hardware.radio.RadioTuner.Callback, android.os.Handler);
+    method public void removeAnnouncementListener(android.hardware.radio.Announcement.OnListUpdatedListener);
     field public static final int BAND_AM = 0; // 0x0
     field public static final int BAND_AM_HD = 3; // 0x3
     field public static final int BAND_FM = 1; // 0x1
@@ -1963,12 +2009,15 @@
   public static class RadioManager.ProgramInfo implements android.os.Parcelable {
     method public int describeContents();
     method public deprecated int getChannel();
+    method public android.hardware.radio.ProgramSelector.Identifier getLogicallyTunedTo();
     method public android.hardware.radio.RadioMetadata getMetadata();
+    method public android.hardware.radio.ProgramSelector.Identifier getPhysicallyTunedTo();
+    method public java.util.Collection<android.hardware.radio.ProgramSelector.Identifier> getRelatedContent();
     method public android.hardware.radio.ProgramSelector getSelector();
     method public int getSignalStrength();
     method public deprecated int getSubChannel();
     method public java.util.Map<java.lang.String, java.lang.String> getVendorInfo();
-    method public boolean isDigital();
+    method public deprecated boolean isDigital();
     method public boolean isLive();
     method public boolean isMuted();
     method public boolean isStereo();
@@ -2028,21 +2077,21 @@
     method public abstract int cancel();
     method public abstract void cancelAnnouncement();
     method public abstract void close();
-    method public abstract int getConfiguration(android.hardware.radio.RadioManager.BandConfig[]);
+    method public abstract deprecated int getConfiguration(android.hardware.radio.RadioManager.BandConfig[]);
     method public android.hardware.radio.ProgramList getDynamicProgramList(android.hardware.radio.ProgramList.Filter);
     method public abstract boolean getMute();
     method public java.util.Map<java.lang.String, java.lang.String> getParameters(java.util.List<java.lang.String>);
-    method public abstract int getProgramInformation(android.hardware.radio.RadioManager.ProgramInfo[]);
+    method public abstract deprecated int getProgramInformation(android.hardware.radio.RadioManager.ProgramInfo[]);
     method public abstract deprecated java.util.List<android.hardware.radio.RadioManager.ProgramInfo> getProgramList(java.util.Map<java.lang.String, java.lang.String>);
     method public abstract boolean hasControl();
     method public abstract deprecated boolean isAnalogForced();
-    method public abstract boolean isAntennaConnected();
+    method public abstract deprecated boolean isAntennaConnected();
     method public boolean isConfigFlagSet(int);
     method public boolean isConfigFlagSupported(int);
     method public abstract int scan(int, boolean);
     method public abstract deprecated void setAnalogForced(boolean);
     method public void setConfigFlag(int, boolean);
-    method public abstract int setConfiguration(android.hardware.radio.RadioManager.BandConfig);
+    method public abstract deprecated int setConfiguration(android.hardware.radio.RadioManager.BandConfig);
     method public abstract int setMute(boolean);
     method public java.util.Map<java.lang.String, java.lang.String> setParameters(java.util.Map<java.lang.String, java.lang.String>);
     method public abstract boolean startBackgroundScan();
@@ -2051,13 +2100,13 @@
     method public abstract void tune(android.hardware.radio.ProgramSelector);
     field public static final int DIRECTION_DOWN = 1; // 0x1
     field public static final int DIRECTION_UP = 0; // 0x0
-    field public static final int ERROR_BACKGROUND_SCAN_FAILED = 6; // 0x6
-    field public static final int ERROR_BACKGROUND_SCAN_UNAVAILABLE = 5; // 0x5
-    field public static final int ERROR_CANCELLED = 2; // 0x2
-    field public static final int ERROR_CONFIG = 4; // 0x4
-    field public static final int ERROR_HARDWARE_FAILURE = 0; // 0x0
-    field public static final int ERROR_SCAN_TIMEOUT = 3; // 0x3
-    field public static final int ERROR_SERVER_DIED = 1; // 0x1
+    field public static final deprecated int ERROR_BACKGROUND_SCAN_FAILED = 6; // 0x6
+    field public static final deprecated int ERROR_BACKGROUND_SCAN_UNAVAILABLE = 5; // 0x5
+    field public static final deprecated int ERROR_CANCELLED = 2; // 0x2
+    field public static final deprecated int ERROR_CONFIG = 4; // 0x4
+    field public static final deprecated int ERROR_HARDWARE_FAILURE = 0; // 0x0
+    field public static final deprecated int ERROR_SCAN_TIMEOUT = 3; // 0x3
+    field public static final deprecated int ERROR_SERVER_DIED = 1; // 0x1
   }
 
   public static abstract class RadioTuner.Callback {
@@ -2065,15 +2114,16 @@
     method public void onAntennaState(boolean);
     method public void onBackgroundScanAvailabilityChange(boolean);
     method public void onBackgroundScanComplete();
-    method public void onConfigurationChanged(android.hardware.radio.RadioManager.BandConfig);
+    method public deprecated void onConfigurationChanged(android.hardware.radio.RadioManager.BandConfig);
     method public void onControlChanged(boolean);
     method public void onEmergencyAnnouncement(boolean);
-    method public void onError(int);
+    method public deprecated void onError(int);
     method public deprecated void onMetadataChanged(android.hardware.radio.RadioMetadata);
     method public void onParametersUpdated(java.util.Map<java.lang.String, java.lang.String>);
     method public void onProgramInfoChanged(android.hardware.radio.RadioManager.ProgramInfo);
     method public void onProgramListChanged();
     method public void onTrafficAnnouncement(boolean);
+    method public void onTuneFailed(int, android.hardware.radio.ProgramSelector);
   }
 
 }
@@ -2880,9 +2930,23 @@
     method public java.lang.String getInterfaceName();
   }
 
+  public final class IpSecTransform implements java.lang.AutoCloseable {
+    method public void startNattKeepalive(android.net.IpSecTransform.NattKeepaliveCallback, int, android.os.Handler) throws java.io.IOException;
+    method public void stopNattKeepalive();
+  }
+
   public static class IpSecTransform.Builder {
     method public android.net.IpSecTransform buildTunnelModeTransform(java.net.InetAddress, android.net.IpSecManager.SecurityParameterIndex) throws java.io.IOException, android.net.IpSecManager.ResourceUnavailableException, android.net.IpSecManager.SpiUnavailableException;
-    method public android.net.IpSecTransform.Builder setNattKeepalive(int);
+  }
+
+  public static class IpSecTransform.NattKeepaliveCallback {
+    ctor public IpSecTransform.NattKeepaliveCallback();
+    method public void onError(int);
+    method public void onStarted();
+    method public void onStopped();
+    field public static final int ERROR_HARDWARE_ERROR = 3; // 0x3
+    field public static final int ERROR_HARDWARE_UNSUPPORTED = 2; // 0x2
+    field public static final int ERROR_INVALID_NETWORK = 1; // 0x1
   }
 
   public class NetworkKey implements android.os.Parcelable {
@@ -3456,6 +3520,125 @@
     field public static final java.lang.String ACTION_UPDATE_SMS_SHORT_CODES = "android.intent.action.UPDATE_SMS_SHORT_CODES";
   }
 
+  public class HidlSupport {
+    method public static boolean deepEquals(java.lang.Object, java.lang.Object);
+    method public static int deepHashCode(java.lang.Object);
+    method public static boolean interfacesEqual(android.os.IHwInterface, java.lang.Object);
+  }
+
+  public abstract class HwBinder implements android.os.IHwBinder {
+    method public static final void configureRpcThreadpool(long, boolean);
+    method public static final void joinRpcThreadpool();
+  }
+
+  public class HwBlob {
+    ctor public HwBlob(int);
+    method public final void copyToBoolArray(long, boolean[], int);
+    method public final void copyToDoubleArray(long, double[], int);
+    method public final void copyToFloatArray(long, float[], int);
+    method public final void copyToInt16Array(long, short[], int);
+    method public final void copyToInt32Array(long, int[], int);
+    method public final void copyToInt64Array(long, long[], int);
+    method public final void copyToInt8Array(long, byte[], int);
+    method public final boolean getBool(long);
+    method public final double getDouble(long);
+    method public final float getFloat(long);
+    method public final short getInt16(long);
+    method public final int getInt32(long);
+    method public final long getInt64(long);
+    method public final byte getInt8(long);
+    method public final java.lang.String getString(long);
+    method public final long handle();
+    method public final void putBlob(long, android.os.HwBlob);
+    method public final void putBool(long, boolean);
+    method public final void putBoolArray(long, boolean[]);
+    method public final void putDouble(long, double);
+    method public final void putDoubleArray(long, double[]);
+    method public final void putFloat(long, float);
+    method public final void putFloatArray(long, float[]);
+    method public final void putInt16(long, short);
+    method public final void putInt16Array(long, short[]);
+    method public final void putInt32(long, int);
+    method public final void putInt32Array(long, int[]);
+    method public final void putInt64(long, long);
+    method public final void putInt64Array(long, long[]);
+    method public final void putInt8(long, byte);
+    method public final void putInt8Array(long, byte[]);
+    method public final void putString(long, java.lang.String);
+    method public static java.lang.Boolean[] wrapArray(boolean[]);
+    method public static java.lang.Long[] wrapArray(long[]);
+    method public static java.lang.Byte[] wrapArray(byte[]);
+    method public static java.lang.Short[] wrapArray(short[]);
+    method public static java.lang.Integer[] wrapArray(int[]);
+    method public static java.lang.Float[] wrapArray(float[]);
+    method public static java.lang.Double[] wrapArray(double[]);
+  }
+
+  public class HwParcel {
+    ctor public HwParcel();
+    method public final void enforceInterface(java.lang.String);
+    method public final boolean readBool();
+    method public final java.util.ArrayList<java.lang.Boolean> readBoolVector();
+    method public final android.os.HwBlob readBuffer(long);
+    method public final double readDouble();
+    method public final java.util.ArrayList<java.lang.Double> readDoubleVector();
+    method public final android.os.HwBlob readEmbeddedBuffer(long, long, long, boolean);
+    method public final float readFloat();
+    method public final java.util.ArrayList<java.lang.Float> readFloatVector();
+    method public final short readInt16();
+    method public final java.util.ArrayList<java.lang.Short> readInt16Vector();
+    method public final int readInt32();
+    method public final java.util.ArrayList<java.lang.Integer> readInt32Vector();
+    method public final long readInt64();
+    method public final java.util.ArrayList<java.lang.Long> readInt64Vector();
+    method public final byte readInt8();
+    method public final java.util.ArrayList<java.lang.Byte> readInt8Vector();
+    method public final java.lang.String readString();
+    method public final java.util.ArrayList<java.lang.String> readStringVector();
+    method public final android.os.IHwBinder readStrongBinder();
+    method public final void release();
+    method public final void releaseTemporaryStorage();
+    method public final void send();
+    method public final void verifySuccess();
+    method public final void writeBool(boolean);
+    method public final void writeBoolVector(java.util.ArrayList<java.lang.Boolean>);
+    method public final void writeBuffer(android.os.HwBlob);
+    method public final void writeDouble(double);
+    method public final void writeDoubleVector(java.util.ArrayList<java.lang.Double>);
+    method public final void writeFloat(float);
+    method public final void writeFloatVector(java.util.ArrayList<java.lang.Float>);
+    method public final void writeInt16(short);
+    method public final void writeInt16Vector(java.util.ArrayList<java.lang.Short>);
+    method public final void writeInt32(int);
+    method public final void writeInt32Vector(java.util.ArrayList<java.lang.Integer>);
+    method public final void writeInt64(long);
+    method public final void writeInt64Vector(java.util.ArrayList<java.lang.Long>);
+    method public final void writeInt8(byte);
+    method public final void writeInt8Vector(java.util.ArrayList<java.lang.Byte>);
+    method public final void writeInterfaceToken(java.lang.String);
+    method public final void writeStatus(int);
+    method public final void writeString(java.lang.String);
+    method public final void writeStringVector(java.util.ArrayList<java.lang.String>);
+    method public final void writeStrongBinder(android.os.IHwBinder);
+    field public static final int STATUS_SUCCESS = 0; // 0x0
+  }
+
+  public static abstract class HwParcel.Status implements java.lang.annotation.Annotation {
+  }
+
+  public abstract interface IHwBinder {
+    method public abstract boolean linkToDeath(android.os.IHwBinder.DeathRecipient, long);
+    method public abstract boolean unlinkToDeath(android.os.IHwBinder.DeathRecipient);
+  }
+
+  public static abstract interface IHwBinder.DeathRecipient {
+    method public abstract void serviceDied(long);
+  }
+
+  public abstract interface IHwInterface {
+    method public abstract android.os.IHwBinder asBinder();
+  }
+
   public class IncidentManager {
     method public void reportIncident(android.os.IncidentReportArgs);
     method public void reportIncident(java.lang.String, byte[]);
@@ -3510,6 +3693,27 @@
     method public abstract void onResult(android.os.Bundle);
   }
 
+  public final class StatsDimensionsValue implements android.os.Parcelable {
+    method public int describeContents();
+    method public boolean getBooleanValue();
+    method public int getField();
+    method public float getFloatValue();
+    method public int getIntValue();
+    method public long getLongValue();
+    method public java.lang.String getStringValue();
+    method public java.util.List<android.os.StatsDimensionsValue> getTupleValueList();
+    method public int getValueType();
+    method public boolean isValueType(int);
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final int BOOLEAN_VALUE_TYPE = 5; // 0x5
+    field public static final android.os.Parcelable.Creator<android.os.StatsDimensionsValue> CREATOR;
+    field public static final int FLOAT_VALUE_TYPE = 6; // 0x6
+    field public static final int INT_VALUE_TYPE = 3; // 0x3
+    field public static final int LONG_VALUE_TYPE = 4; // 0x4
+    field public static final int STRING_VALUE_TYPE = 2; // 0x2
+    field public static final int TUPLE_VALUE_TYPE = 7; // 0x7
+  }
+
   public class SystemProperties {
     method public static java.lang.String get(java.lang.String);
     method public static java.lang.String get(java.lang.String, java.lang.String);
@@ -4529,9 +4733,84 @@
     field public static final java.lang.String MBMS_STREAMING_SERVICE_ACTION = "android.telephony.action.EmbmsStreaming";
   }
 
+  public class NetworkRegistrationState implements android.os.Parcelable {
+    ctor public NetworkRegistrationState(int, int, int, int, int, boolean, int[], android.telephony.CellIdentity);
+    ctor protected NetworkRegistrationState(android.os.Parcel);
+    method public int describeContents();
+    method public int getAccessNetworkTechnology();
+    method public int[] getAvailableServices();
+    method public int getDomain();
+    method public int getRegState();
+    method public int getTransportType();
+    method public boolean isEmergencyEnabled();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.telephony.NetworkRegistrationState> CREATOR;
+    field public static final int DOMAIN_CS = 1; // 0x1
+    field public static final int DOMAIN_PS = 2; // 0x2
+    field public static final int REG_STATE_DENIED = 3; // 0x3
+    field public static final int REG_STATE_HOME = 1; // 0x1
+    field public static final int REG_STATE_NOT_REG_NOT_SEARCHING = 0; // 0x0
+    field public static final int REG_STATE_NOT_REG_SEARCHING = 2; // 0x2
+    field public static final int REG_STATE_ROAMING = 5; // 0x5
+    field public static final int REG_STATE_UNKNOWN = 4; // 0x4
+    field public static final int SERVICE_TYPE_DATA = 2; // 0x2
+    field public static final int SERVICE_TYPE_EMERGENCY = 5; // 0x5
+    field public static final int SERVICE_TYPE_SMS = 3; // 0x3
+    field public static final int SERVICE_TYPE_VIDEO = 4; // 0x4
+    field public static final int SERVICE_TYPE_VOICE = 1; // 0x1
+  }
+
+  public abstract class NetworkService extends android.app.Service {
+    method protected abstract android.telephony.NetworkService.NetworkServiceProvider createNetworkServiceProvider(int);
+    field public static final java.lang.String NETWORK_SERVICE_EXTRA_SLOT_ID = "android.telephony.extra.SLOT_ID";
+    field public static final java.lang.String NETWORK_SERVICE_INTERFACE = "android.telephony.NetworkService";
+  }
+
+  public class NetworkService.NetworkServiceProvider {
+    ctor public NetworkService.NetworkServiceProvider(int);
+    method public void getNetworkRegistrationState(int, android.telephony.NetworkServiceCallback);
+    method public final int getSlotId();
+    method public final void notifyNetworkRegistrationStateChanged();
+    method protected void onDestroy();
+  }
+
+  public class NetworkServiceCallback {
+    method public void onGetNetworkRegistrationStateComplete(int, android.telephony.NetworkRegistrationState);
+    field public static final int RESULT_ERROR_BUSY = 3; // 0x3
+    field public static final int RESULT_ERROR_FAILED = 5; // 0x5
+    field public static final int RESULT_ERROR_ILLEGAL_STATE = 4; // 0x4
+    field public static final int RESULT_ERROR_INVALID_ARG = 2; // 0x2
+    field public static final int RESULT_ERROR_UNSUPPORTED = 1; // 0x1
+    field public static final int RESULT_SUCCESS = 0; // 0x0
+  }
+
+  public class ServiceState implements android.os.Parcelable {
+    method public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStates();
+    method public java.util.List<android.telephony.NetworkRegistrationState> getNetworkRegistrationStates(int);
+    method public android.telephony.NetworkRegistrationState getNetworkRegistrationStates(int, int);
+  }
+
   public final class SmsManager {
     method public void sendMultipartTextMessageWithoutPersisting(java.lang.String, java.lang.String, java.util.List<java.lang.String>, java.util.List<android.app.PendingIntent>, java.util.List<android.app.PendingIntent>);
     method public void sendTextMessageWithoutPersisting(java.lang.String, java.lang.String, java.lang.String, android.app.PendingIntent, android.app.PendingIntent);
+    field public static final int RESULT_CANCELLED = 23; // 0x17
+    field public static final int RESULT_ENCODING_ERROR = 18; // 0x12
+    field public static final int RESULT_ERROR_FDN_CHECK_FAILURE = 6; // 0x6
+    field public static final int RESULT_ERROR_NONE = 0; // 0x0
+    field public static final int RESULT_INTERNAL_ERROR = 21; // 0x15
+    field public static final int RESULT_INVALID_ARGUMENTS = 11; // 0xb
+    field public static final int RESULT_INVALID_SMSC_ADDRESS = 19; // 0x13
+    field public static final int RESULT_INVALID_SMS_FORMAT = 14; // 0xe
+    field public static final int RESULT_INVALID_STATE = 12; // 0xc
+    field public static final int RESULT_MODEM_ERROR = 16; // 0x10
+    field public static final int RESULT_NETWORK_ERROR = 17; // 0x11
+    field public static final int RESULT_NETWORK_REJECT = 10; // 0xa
+    field public static final int RESULT_NO_MEMORY = 13; // 0xd
+    field public static final int RESULT_NO_RESOURCES = 22; // 0x16
+    field public static final int RESULT_OPERATION_NOT_ALLOWED = 20; // 0x14
+    field public static final int RESULT_RADIO_NOT_AVAILABLE = 9; // 0x9
+    field public static final int RESULT_REQUEST_NOT_SUPPORTED = 24; // 0x18
+    field public static final int RESULT_SYSTEM_ERROR = 15; // 0xf
   }
 
   public class SubscriptionManager {
@@ -4622,6 +4901,7 @@
     method public int getSimApplicationState();
     method public int getSimCardState();
     method public java.util.List<android.telephony.TelephonyHistogram> getTelephonyHistograms();
+    method public android.telephony.UiccSlotInfo[] getUiccSlotsInfo();
     method public android.os.Bundle getVisualVoicemailSettings();
     method public int getVoiceActivationState();
     method public boolean handlePinMmi(java.lang.String);
@@ -4648,6 +4928,7 @@
     method public int[] supplyPinReportResult(java.lang.String);
     method public boolean supplyPuk(java.lang.String, java.lang.String);
     method public int[] supplyPukReportResult(java.lang.String, java.lang.String);
+    method public boolean switchSlots(int[]);
     method public void toggleRadioOnOff();
     method public void updateServiceLocation();
     field public static final java.lang.String ACTION_SIM_APPLICATION_STATE_CHANGED = "android.telephony.action.SIM_APPLICATION_STATE_CHANGED";
@@ -4669,6 +4950,25 @@
     field public static final int SIM_STATE_PRESENT = 11; // 0xb
   }
 
+  public class UiccSlotInfo implements android.os.Parcelable {
+    ctor public UiccSlotInfo(boolean, boolean, java.lang.String, int);
+    method public int describeContents();
+    method public java.lang.String getCardId();
+    method public int getCardStateInfo();
+    method public boolean getIsActive();
+    method public boolean getIsEuicc();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final int CARD_STATE_INFO_ABSENT = 1; // 0x1
+    field public static final int CARD_STATE_INFO_ERROR = 3; // 0x3
+    field public static final int CARD_STATE_INFO_PRESENT = 2; // 0x2
+    field public static final int CARD_STATE_INFO_RESTRICTED = 4; // 0x4
+    field public static final android.os.Parcelable.Creator<android.telephony.UiccSlotInfo> CREATOR;
+    field public final java.lang.String cardId;
+    field public final int cardStateInfo;
+    field public final boolean isActive;
+    field public final boolean isEuicc;
+  }
+
   public abstract class VisualVoicemailService extends android.app.Service {
     method public static final void sendVisualVoicemailSms(android.content.Context, android.telecom.PhoneAccountHandle, java.lang.String, short, java.lang.String, android.app.PendingIntent);
     method public static final void setSmsFilterSettings(android.content.Context, android.telecom.PhoneAccountHandle, android.telephony.VisualVoicemailSmsFilterSettings);
@@ -4771,6 +5071,30 @@
 
 }
 
+package android.telephony.ims.internal.stub {
+
+  public class SmsImplBase {
+    ctor public SmsImplBase();
+    method public void acknowledgeSms(int, int, int);
+    method public void acknowledgeSmsReport(int, int, int);
+    method public java.lang.String getSmsFormat();
+    method public void onReady();
+    method public final void onSendSmsResult(int, int, int, int) throws java.lang.RuntimeException;
+    method public final void onSmsReceived(int, java.lang.String, byte[]) throws java.lang.RuntimeException;
+    method public final void onSmsStatusReportReceived(int, int, java.lang.String, byte[]) throws java.lang.RuntimeException;
+    method public void sendSms(int, int, java.lang.String, java.lang.String, boolean, byte[]);
+    field public static final int DELIVER_STATUS_ERROR = 2; // 0x2
+    field public static final int DELIVER_STATUS_OK = 1; // 0x1
+    field public static final int SEND_STATUS_ERROR = 2; // 0x2
+    field public static final int SEND_STATUS_ERROR_FALLBACK = 4; // 0x4
+    field public static final int SEND_STATUS_ERROR_RETRY = 3; // 0x3
+    field public static final int SEND_STATUS_OK = 1; // 0x1
+    field public static final int STATUS_REPORT_STATUS_ERROR = 2; // 0x2
+    field public static final int STATUS_REPORT_STATUS_OK = 1; // 0x1
+  }
+
+}
+
 package android.telephony.mbms {
 
   public final class DownloadRequest implements android.os.Parcelable {
@@ -4872,24 +5196,10 @@
     method public int getUid();
   }
 
-  public final class StatsManager {
-    method public boolean addConfiguration(java.lang.String, byte[], java.lang.String, java.lang.String);
-    method public boolean addConfiguration(long, byte[], java.lang.String, java.lang.String);
-    method public byte[] getData(java.lang.String);
-    method public byte[] getData(long);
-    method public byte[] getMetadata();
-    method public boolean removeConfiguration(java.lang.String);
-    method public boolean removeConfiguration(long);
-  }
-
 }
 
 package android.view {
 
-  public abstract class Window {
-    method public void setDisableWallpaperTouchEvents(boolean);
-  }
-
   public abstract interface WindowManager implements android.view.ViewManager {
     method public abstract android.graphics.Region getCurrentImeTouchRegion();
   }
diff --git a/api/test-current.txt b/api/test-current.txt
index 254fc15..4e8f904 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -48,6 +48,7 @@
   public class AppOpsManager {
     method public static java.lang.String[] getOpStrs();
     method public void setMode(int, int, java.lang.String, int);
+    field public static final java.lang.String OPSTR_ACCEPT_HANDOVER = "android:accept_handover";
     field public static final java.lang.String OPSTR_ACCESS_NOTIFICATIONS = "android:access_notifications";
     field public static final java.lang.String OPSTR_ACTIVATE_VPN = "android:activate_vpn";
     field public static final java.lang.String OPSTR_ASSIST_SCREENSHOT = "android:assist_screenshot";
@@ -1036,6 +1037,10 @@
 
 package android.widget {
 
+  public abstract class AbsListView extends android.widget.AdapterView implements android.widget.Filter.FilterListener android.text.TextWatcher android.view.ViewTreeObserver.OnGlobalLayoutListener android.view.ViewTreeObserver.OnTouchModeChangeListener {
+    method public final boolean shouldDrawSelector();
+  }
+
   public class CalendarView extends android.widget.FrameLayout {
     method public boolean getBoundsForDate(long, android.graphics.Rect);
   }
diff --git a/cmds/statsd/Android.mk b/cmds/statsd/Android.mk
index a7daa3f..565b092 100644
--- a/cmds/statsd/Android.mk
+++ b/cmds/statsd/Android.mk
@@ -62,6 +62,7 @@
     src/storage/StorageManager.cpp \
     src/StatsLogProcessor.cpp \
     src/StatsService.cpp \
+    src/subscriber/SubscriberReporter.cpp \
     src/HashableDimensionKey.cpp \
     src/guardrail/MemoryLeakTrackUtil.cpp \
     src/guardrail/StatsdStats.cpp
@@ -136,7 +137,7 @@
 
 LOCAL_MODULE_CLASS := EXECUTABLES
 
-LOCAL_INIT_RC := statsd.rc
+#LOCAL_INIT_RC := statsd.rc
 
 include $(BUILD_EXECUTABLE)
 
@@ -221,6 +222,44 @@
 
 include $(BUILD_STATIC_JAVA_LIBRARY)
 
+##############################
+# statsd micro benchmark
+##############################
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := statsd_benchmark
+
+LOCAL_SRC_FILES := $(statsd_common_src) \
+                   benchmark/main.cpp \
+                   benchmark/hello_world_benchmark.cpp \
+                   benchmark/log_event_benchmark.cpp
+
+LOCAL_C_INCLUDES := $(statsd_common_c_includes)
+
+LOCAL_CFLAGS := -Wall \
+                -Werror \
+                -Wno-unused-parameter \
+                -Wno-unused-variable \
+                -Wno-unused-function \
+
+# Bug: http://b/29823425 Disable -Wvarargs for Clang update to r271374
+LOCAL_CFLAGS += -Wno-varargs
+
+LOCAL_AIDL_INCLUDES := $(statsd_common_aidl_includes)
+
+LOCAL_STATIC_LIBRARIES := \
+    $(statsd_common_static_libraries)
+
+LOCAL_SHARED_LIBRARIES := $(statsd_common_shared_libraries) \
+    libgtest_prod
+
+LOCAL_PROTOC_OPTIMIZE_TYPE := lite
+
+LOCAL_MODULE_TAGS := eng tests
+
+include $(BUILD_NATIVE_BENCHMARK)
+
+
 statsd_common_src:=
 statsd_common_aidl_includes:=
 statsd_common_c_includes:=
@@ -228,6 +267,4 @@
 statsd_common_shared_libraries:=
 
 
-##############################
-
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/cmds/statsd/benchmark/hello_world_benchmark.cpp b/cmds/statsd/benchmark/hello_world_benchmark.cpp
new file mode 100644
index 0000000..c732d39
--- /dev/null
+++ b/cmds/statsd/benchmark/hello_world_benchmark.cpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "benchmark/benchmark.h"
+
+static void BM_StringCreation(benchmark::State& state) {
+    while (state.KeepRunning()) std::string empty_string;
+}
+// Register the function as a benchmark
+BENCHMARK(BM_StringCreation);
+
+// Define another benchmark
+static void BM_StringCopy(benchmark::State& state) {
+    std::string x = "hello";
+    while (state.KeepRunning()) std::string copy(x);
+}
+BENCHMARK(BM_StringCopy);
diff --git a/cmds/statsd/benchmark/log_event_benchmark.cpp b/cmds/statsd/benchmark/log_event_benchmark.cpp
new file mode 100644
index 0000000..43addc2
--- /dev/null
+++ b/cmds/statsd/benchmark/log_event_benchmark.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vector>
+#include "benchmark/benchmark.h"
+#include "logd/LogEvent.h"
+
+namespace android {
+namespace os {
+namespace statsd {
+
+using std::vector;
+
+/* Special markers for android_log_list_element type */
+static const char EVENT_TYPE_LIST_STOP = '\n'; /* declare end of list  */
+static const char EVENT_TYPE_UNKNOWN = '?';    /* protocol error       */
+
+static const char EVENT_TYPE_INT = 0;
+static const char EVENT_TYPE_LONG = 1;
+static const char EVENT_TYPE_STRING = 2;
+static const char EVENT_TYPE_LIST = 3;
+static const char EVENT_TYPE_FLOAT = 4;
+
+static const int kLogMsgHeaderSize = 28;
+
+static void write4Bytes(int val, vector<char>* buffer) {
+    buffer->push_back(static_cast<char>(val));
+    buffer->push_back(static_cast<char>((val >> 8) & 0xFF));
+    buffer->push_back(static_cast<char>((val >> 16) & 0xFF));
+    buffer->push_back(static_cast<char>((val >> 24) & 0xFF));
+}
+
+static void getSimpleLogMsgData(log_msg* msg) {
+    vector<char> buffer;
+    // stats_log tag id
+    write4Bytes(1937006964, &buffer);
+    buffer.push_back(EVENT_TYPE_LIST);
+    buffer.push_back(2);  // field counts;
+    buffer.push_back(EVENT_TYPE_INT);
+    write4Bytes(10 /* atom id */, &buffer);
+    buffer.push_back(EVENT_TYPE_INT);
+    write4Bytes(99 /* a value to log*/, &buffer);
+    buffer.push_back(EVENT_TYPE_LIST_STOP);
+
+    msg->entry_v1.len = buffer.size();
+    msg->entry.hdr_size = kLogMsgHeaderSize;
+    msg->entry_v1.sec = time(nullptr);
+    std::copy(buffer.begin(), buffer.end(), msg->buf + kLogMsgHeaderSize);
+}
+
+static void BM_LogEventCreation(benchmark::State& state) {
+    log_msg msg;
+    getSimpleLogMsgData(&msg);
+    while (state.KeepRunning()) {
+        benchmark::DoNotOptimize(LogEvent(msg));
+    }
+}
+BENCHMARK(BM_LogEventCreation);
+
+}  //  namespace statsd
+}  //  namespace os
+}  //  namespace android
diff --git a/cmds/statsd/benchmark/main.cpp b/cmds/statsd/benchmark/main.cpp
new file mode 100644
index 0000000..08921f3
--- /dev/null
+++ b/cmds/statsd/benchmark/main.cpp
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <benchmark/benchmark.h>
+
+BENCHMARK_MAIN();
diff --git a/cmds/statsd/src/StatsLogProcessor.cpp b/cmds/statsd/src/StatsLogProcessor.cpp
index 7a7a2f6..edc9f2c 100644
--- a/cmds/statsd/src/StatsLogProcessor.cpp
+++ b/cmds/statsd/src/StatsLogProcessor.cpp
@@ -92,10 +92,20 @@
 
 void StatsLogProcessor::mapIsolatedUidToHostUidIfNecessaryLocked(LogEvent* event) const {
     std::vector<Field> uidFields;
-    findFields(
-        event->getFieldValueMap(),
-        buildAttributionUidFieldMatcher(event->GetTagId(), Position::ANY),
-        &uidFields);
+    if (android::util::kAtomsWithAttributionChain.find(event->GetTagId()) !=
+        android::util::kAtomsWithAttributionChain.end()) {
+        findFields(
+            event->getFieldValueMap(),
+            buildAttributionUidFieldMatcher(event->GetTagId(), Position::ANY),
+            &uidFields);
+    } else if (android::util::kAtomsWithUidField.find(event->GetTagId()) !=
+               android::util::kAtomsWithUidField.end()) {
+        findFields(
+            event->getFieldValueMap(),
+            buildSimpleAtomFieldMatcher(event->GetTagId(), 1 /* uid is always the 1st field. */),
+            &uidFields);
+    }
+
     for (size_t i = 0; i < uidFields.size(); ++i) {
         DimensionsValue* value = event->findFieldValueOrNull(uidFields[i]);
         if (value != nullptr && value->value_case() == DimensionsValue::ValueCase::kValueInt) {
@@ -127,15 +137,17 @@
     StatsdStats::getInstance().noteAtomLogged(
         event->GetTagId(), event->GetTimestampNs() / NS_PER_SEC);
 
-    if (mMetricsManagers.empty()) {
-        return;
-    }
-
     // Hard-coded logic to update the isolated uid's in the uid-map.
     // The field numbers need to be currently updated by hand with atoms.proto
     if (event->GetTagId() == android::util::ISOLATED_UID_CHANGED) {
         onIsolatedUidChangedEventLocked(*event);
-    } else {
+    }
+
+    if (mMetricsManagers.empty()) {
+        return;
+    }
+
+    if (event->GetTagId() != android::util::ISOLATED_UID_CHANGED) {
         // Map the isolated uid to host uid if necessary.
         mapIsolatedUidToHostUidIfNecessaryLocked(event);
     }
@@ -201,6 +213,10 @@
 
 void StatsLogProcessor::onDumpReport(const ConfigKey& key, vector<uint8_t>* outData) {
     std::lock_guard<std::mutex> lock(mMetricsMutex);
+    onDumpReportLocked(key, outData);
+}
+
+void StatsLogProcessor::onDumpReportLocked(const ConfigKey& key, vector<uint8_t>* outData) {
     auto it = mMetricsManagers.find(key);
     if (it == mMetricsManagers.end()) {
         ALOGW("Config source %s does not exist", key.ToString().c_str());
@@ -240,7 +256,7 @@
 
     // Then, check stats-data directory to see there's any file containing
     // ConfigMetricsReport from previous shutdowns to concatenate to reports.
-    StorageManager::appendConfigMetricsReport(STATS_DATA_DIR, proto);
+    StorageManager::appendConfigMetricsReport(proto);
 
     if (outData != nullptr) {
         outData->clear();
@@ -309,10 +325,10 @@
     for (auto& pair : mMetricsManagers) {
         const ConfigKey& key = pair.first;
         vector<uint8_t> data;
-        onDumpReport(key, &data);
+        onDumpReportLocked(key, &data);
         // TODO: Add a guardrail to prevent accumulation of file on disk.
-        string file_name = StringPrintf("%s/%d-%lld-%ld", STATS_DATA_DIR, key.GetUid(),
-                                        (long long)key.GetId(), time(nullptr));
+        string file_name = StringPrintf("%s/%ld_%d_%lld", STATS_DATA_DIR, time(nullptr),
+                                        key.GetUid(), (long long)key.GetId());
         StorageManager::writeFile(file_name.c_str(), &data[0], data.size());
     }
 }
diff --git a/cmds/statsd/src/StatsLogProcessor.h b/cmds/statsd/src/StatsLogProcessor.h
index 301e3a5..fb85aa8 100644
--- a/cmds/statsd/src/StatsLogProcessor.h
+++ b/cmds/statsd/src/StatsLogProcessor.h
@@ -75,6 +75,8 @@
 
     sp<AnomalyMonitor> mAnomalyMonitor;
 
+    void onDumpReportLocked(const ConfigKey& key, vector<uint8_t>* outData);
+
     /* Check if we should send a broadcast if approaching memory limits and if we're over, we
      * actually delete the data. */
     void flushIfNecessaryLocked(uint64_t timestampNs, const ConfigKey& key,
diff --git a/cmds/statsd/src/StatsService.cpp b/cmds/statsd/src/StatsService.cpp
index ba628b8..31994e1 100644
--- a/cmds/statsd/src/StatsService.cpp
+++ b/cmds/statsd/src/StatsService.cpp
@@ -24,6 +24,7 @@
 #include "guardrail/MemoryLeakTrackUtil.h"
 #include "guardrail/StatsdStats.h"
 #include "storage/StorageManager.h"
+#include "subscriber/SubscriberReporter.h"
 
 #include <android-base/file.h>
 #include <binder/IPCThreadState.h>
@@ -67,6 +68,7 @@
 void CompanionDeathRecipient::binderDied(const wp<IBinder>& who) {
     ALOGW("statscompanion service died");
     mAnomalyMonitor->setStatsCompanionService(nullptr);
+    SubscriberReporter::getInstance().setStatsCompanionService(nullptr);
 }
 
 // ======================================================================
@@ -380,6 +382,8 @@
                             "The config can only be set for other UIDs on eng or userdebug "
                             "builds.\n");
                 }
+            } else if (argCount == 2 && args[1] == "remove") {
+                good = true;
             }
 
             if (!good) {
@@ -681,6 +685,7 @@
     VLOG("StatsService::statsCompanionReady linking to statsCompanion.");
     IInterface::asBinder(statsCompanion)->linkToDeath(new CompanionDeathRecipient(mAnomalyMonitor));
     mAnomalyMonitor->setStatsCompanionService(statsCompanion);
+    SubscriberReporter::getInstance().setStatsCompanionService(statsCompanion);
 
     return Status::ok();
 }
@@ -743,7 +748,9 @@
 Status StatsService::removeConfiguration(int64_t key, bool* success) {
     IPCThreadState* ipc = IPCThreadState::self();
     if (checkCallingPermission(String16(kPermissionDump))) {
-        mConfigManager->RemoveConfig(ConfigKey(ipc->getCallingUid(), key));
+        ConfigKey configKey(ipc->getCallingUid(), key);
+        mConfigManager->RemoveConfig(configKey);
+        SubscriberReporter::getInstance().removeConfig(configKey);
         *success = true;
         return Status::ok();
     } else {
@@ -752,6 +759,42 @@
     }
 }
 
+Status StatsService::setBroadcastSubscriber(int64_t configId,
+                                            int64_t subscriberId,
+                                            const sp<android::IBinder>& intentSender,
+                                            bool* success) {
+    VLOG("StatsService::setBroadcastSubscriber called.");
+    IPCThreadState* ipc = IPCThreadState::self();
+    if (checkCallingPermission(String16(kPermissionDump))) {
+        ConfigKey configKey(ipc->getCallingUid(), configId);
+        SubscriberReporter::getInstance()
+                .setBroadcastSubscriber(configKey, subscriberId, intentSender);
+        *success = true;
+        return Status::ok();
+    } else {
+        *success = false;
+        return Status::fromExceptionCode(binder::Status::EX_SECURITY);
+    }
+}
+
+Status StatsService::unsetBroadcastSubscriber(int64_t configId,
+                                              int64_t subscriberId,
+                                              bool* success) {
+    VLOG("StatsService::unsetBroadcastSubscriber called.");
+    IPCThreadState* ipc = IPCThreadState::self();
+    if (checkCallingPermission(String16(kPermissionDump))) {
+        ConfigKey configKey(ipc->getCallingUid(), configId);
+        SubscriberReporter::getInstance()
+                .unsetBroadcastSubscriber(configKey, subscriberId);
+        *success = true;
+        return Status::ok();
+    } else {
+        *success = false;
+        return Status::fromExceptionCode(binder::Status::EX_SECURITY);
+    }
+}
+
+
 void StatsService::binderDied(const wp <IBinder>& who) {
 }
 
diff --git a/cmds/statsd/src/StatsService.h b/cmds/statsd/src/StatsService.h
index 8d29970..ba6bd24 100644
--- a/cmds/statsd/src/StatsService.h
+++ b/cmds/statsd/src/StatsService.h
@@ -99,6 +99,21 @@
      */
     virtual Status removeConfiguration(int64_t key, bool* success) override;
 
+    /**
+     * Binder call to associate the given config's subscriberId with the given intentSender.
+     * intentSender must be convertible into an IntentSender (in Java) using IntentSender(IBinder).
+     */
+    virtual Status setBroadcastSubscriber(int64_t configId,
+                                          int64_t subscriberId,
+                                          const sp<android::IBinder>& intentSender,
+                                          bool* success) override;
+
+    /**
+     * Binder call to unassociate the given config's subscriberId with any intentSender.
+     */
+    virtual Status unsetBroadcastSubscriber(int64_t configId, int64_t subscriberId,
+                                            bool* success) override;
+
     // TODO: public for testing since statsd doesn't run when system starts. Change to private
     // later.
     /** Inform statsCompanion that statsd is ready. */
diff --git a/cmds/statsd/src/anomaly/AnomalyTracker.cpp b/cmds/statsd/src/anomaly/AnomalyTracker.cpp
index e34aed3..ded6c4c 100644
--- a/cmds/statsd/src/anomaly/AnomalyTracker.cpp
+++ b/cmds/statsd/src/anomaly/AnomalyTracker.cpp
@@ -21,6 +21,7 @@
 #include "external/Perfetto.h"
 #include "guardrail/StatsdStats.h"
 #include "frameworks/base/libs/incident/proto/android/os/header.pb.h"
+#include "subscriber/SubscriberReporter.h"
 
 #include <android/os/IIncidentManager.h>
 #include <android/os/IncidentReportArgs.h>
@@ -233,6 +234,7 @@
     }
 
     std::set<int> incidentdSections;
+
     for (const Subscription& subscription : mSubscriptions) {
         switch (subscription.subscriber_information_case()) {
             case Subscription::SubscriberInformationCase::kIncidentdDetails:
@@ -243,6 +245,10 @@
             case Subscription::SubscriberInformationCase::kPerfettoDetails:
                 CollectPerfettoTraceAndUploadToDropbox(subscription.perfetto_details());
                 break;
+            case Subscription::SubscriberInformationCase::kBroadcastSubscriberDetails:
+                SubscriberReporter::getInstance()
+                        .alertBroadcastSubscriber(mConfigKey, subscription, key);
+                break;
             default:
                 break;
         }
diff --git a/cmds/statsd/src/anomaly/DurationAnomalyTracker.h b/cmds/statsd/src/anomaly/DurationAnomalyTracker.h
index de7093d..33e55ab 100644
--- a/cmds/statsd/src/anomaly/DurationAnomalyTracker.h
+++ b/cmds/statsd/src/anomaly/DurationAnomalyTracker.h
@@ -51,10 +51,8 @@
 
     // Declares an anomaly for each alarm in firedAlarms that belongs to this DurationAnomalyTracker
     // and removes it from firedAlarms.
-    // TODO: This will actually be called from a different thread, so make it thread-safe!
-    //          This means that almost every function in DurationAnomalyTracker needs to be locked.
-    //          But this should be done at the level of StatsLogProcessor, which needs to lock
-    //          mMetricsMangers anyway.
+    // Note that this will generally be called from a different thread from the other functions;
+    // the caller is responsible for thread safety.
     void informAlarmsFired(const uint64_t& timestampNs,
             unordered_set<sp<const AnomalyAlarm>, SpHash<AnomalyAlarm>>& firedAlarms) override;
 
diff --git a/cmds/statsd/src/condition/CombinationConditionTracker.cpp b/cmds/statsd/src/condition/CombinationConditionTracker.cpp
index afa26f6..ea6586c 100644
--- a/cmds/statsd/src/condition/CombinationConditionTracker.cpp
+++ b/cmds/statsd/src/condition/CombinationConditionTracker.cpp
@@ -154,7 +154,7 @@
             }
         }
         nonSlicedConditionCache[mIndex] = ConditionState::kUnknown;
-        ALOGD("CombinationPredicate %lld sliced may changed? %d", (long long)mConditionId,
+        VLOG("CombinationPredicate %lld sliced may changed? %d", (long long)mConditionId,
             conditionChangedCache[mIndex] == true);
     }
 }
diff --git a/cmds/statsd/src/config/ConfigManager.cpp b/cmds/statsd/src/config/ConfigManager.cpp
index 42994b5..61eeee3 100644
--- a/cmds/statsd/src/config/ConfigManager.cpp
+++ b/cmds/statsd/src/config/ConfigManager.cpp
@@ -101,8 +101,8 @@
 }
 
 void ConfigManager::remove_saved_configs(const ConfigKey& key) {
-    string prefix = StringPrintf("%d-%lld", key.GetUid(), (long long)key.GetId());
-    StorageManager::deletePrefixedFiles(STATS_SERVICE_DIR, prefix.c_str());
+    string suffix = StringPrintf("%d-%lld", key.GetUid(), (long long)key.GetId());
+    StorageManager::deleteSuffixedFiles(STATS_SERVICE_DIR, suffix.c_str());
 }
 
 void ConfigManager::RemoveConfigs(int uid) {
@@ -111,6 +111,7 @@
     for (auto it = mConfigs.begin(); it != mConfigs.end();) {
         // Remove from map
         if (it->GetUid() == uid) {
+            remove_saved_configs(*it);
             removed.push_back(*it);
             mConfigReceivers.erase(*it);
             it = mConfigs.erase(it);
@@ -185,8 +186,8 @@
     remove_saved_configs(key);
 
     // Then we save the latest config.
-    string file_name = StringPrintf("%s/%d-%lld-%ld", STATS_SERVICE_DIR, key.GetUid(),
-                                    (long long)key.GetId(), time(nullptr));
+    string file_name = StringPrintf("%s/%ld_%d_%lld", STATS_SERVICE_DIR, time(nullptr),
+                                    key.GetUid(), (long long)key.GetId());
     const int numBytes = config.ByteSize();
     vector<uint8_t> buffer(numBytes);
     config.SerializeToArray(&buffer[0], numBytes);
diff --git a/cmds/statsd/src/external/Perfetto.cpp b/cmds/statsd/src/external/Perfetto.cpp
index f7b33e7..1d8a968 100644
--- a/cmds/statsd/src/external/Perfetto.cpp
+++ b/cmds/statsd/src/external/Perfetto.cpp
@@ -20,6 +20,7 @@
 
 #include <android-base/unique_fd.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <sys/types.h>
 #include <sys/wait.h>
 #include <unistd.h>
@@ -65,11 +66,26 @@
 
         // Replace stdin with |readPipe| so the main process can write into it.
         if (dup2(readPipe.get(), STDIN_FILENO) < 0) _exit(1);
+        readPipe.reset();
+
+        // Replace stdout/stderr with /dev/null and close any other file
+        // descriptor. This is to avoid SELinux complaining about perfetto
+        // trying to access files accidentally left open by statsd (i.e. files
+        // that have been opened without the O_CLOEXEC flag).
+        int devNullFd = open("/dev/null", O_RDWR | O_CLOEXEC);
+        if (dup2(devNullFd, STDOUT_FILENO) < 0) _exit(2);
+        if (dup2(devNullFd, STDERR_FILENO) < 0) _exit(3);
+        close(devNullFd);
+        for (int i = 0; i < 1024; i++) {
+            if (i != STDIN_FILENO && i != STDOUT_FILENO && i != STDERR_FILENO) close(i);
+        }
+
         execl("/system/bin/perfetto", "perfetto", "--background", "--config", "-", "--dropbox",
               kDropboxTag, nullptr);
 
-        // execl() doesn't return in case of success, if we get here something failed.
-        _exit(1);
+        // execl() doesn't return in case of success, if we get here something
+        // failed.
+        _exit(4);
     }
 
     // Main process.
@@ -93,8 +109,8 @@
         return false;
     }
 
-    // This does NOT wait for the full duration of the trace. It just waits until the process
-    // has read the config from stdin and detached.
+    // This does NOT wait for the full duration of the trace. It just waits until
+    // the process has read the config from stdin and detached.
     int childStatus = 0;
     waitpid(pid, &childStatus, 0);
     if (!WIFEXITED(childStatus) || WEXITSTATUS(childStatus) != 0) {
diff --git a/cmds/statsd/src/guardrail/StatsdStats.h b/cmds/statsd/src/guardrail/StatsdStats.h
index 9178daa4..7cb48ea 100644
--- a/cmds/statsd/src/guardrail/StatsdStats.h
+++ b/cmds/statsd/src/guardrail/StatsdStats.h
@@ -74,6 +74,15 @@
     // Default cooldown time for a puller
     static const long kDefaultPullerCooldown = 1;
 
+    // Maximum age (30 days) that files on disk can exist in seconds.
+    static const int kMaxAgeSecond = 60 * 60 * 24 * 30;
+
+    // Maximum number of files (1000) that can be in stats directory on disk.
+    static const int kMaxFileNumber = 1000;
+
+    // Maximum size of all files that can be written to stats directory on disk.
+    static const int kMaxFileSize = 50 * 1024 * 1024;
+
     /**
      * Report a new config has been received and report the static stats about the config.
      *
diff --git a/cmds/statsd/src/logd/LogEvent.cpp b/cmds/statsd/src/logd/LogEvent.cpp
index 34fa3c4..1ca793c 100644
--- a/cmds/statsd/src/logd/LogEvent.cpp
+++ b/cmds/statsd/src/logd/LogEvent.cpp
@@ -42,6 +42,7 @@
     mLogUid = msg.entry_v4.uid;
     init(mContext);
     if (mContext) {
+        // android_log_destroy will set mContext to NULL
         android_log_destroy(&mContext);
     }
 }
@@ -64,12 +65,17 @@
         mContext = create_android_log_parser(buffer, len);
         init(mContext);
         // destroy the context to save memory.
-        android_log_destroy(&mContext);
+        if (mContext) {
+            // android_log_destroy will set mContext to NULL
+            android_log_destroy(&mContext);
+        }
     }
 }
 
 LogEvent::~LogEvent() {
     if (mContext) {
+        // This is for the case when LogEvent is created using the test interface
+        // but init() isn't called.
         android_log_destroy(&mContext);
     }
 }
diff --git a/cmds/statsd/src/logd/LogEvent.h b/cmds/statsd/src/logd/LogEvent.h
index fdfa32e..5a4efd4 100644
--- a/cmds/statsd/src/logd/LogEvent.h
+++ b/cmds/statsd/src/logd/LogEvent.h
@@ -58,14 +58,14 @@
     /**
      * Get the timestamp associated with this event.
      */
-    uint64_t GetTimestampNs() const { return mTimestampNs; }
+    inline uint64_t GetTimestampNs() const { return mTimestampNs; }
 
     /**
      * Get the tag for this event.
      */
-    int GetTagId() const { return mTagId; }
+    inline int GetTagId() const { return mTagId; }
 
-    uint32_t GetUid() const {
+    inline uint32_t GetUid() const {
         return mLogUid;
     }
 
@@ -156,7 +156,7 @@
     // This field is used when statsD wants to create log event object and write fields to it. After
     // calling init() function, this object would be destroyed to save memory usage.
     // When the log event is created from log msg, this field is never initiated.
-    android_log_context mContext;
+    android_log_context mContext = NULL;
 
     uint64_t mTimestampNs;
 
diff --git a/cmds/statsd/src/packages/UidMap.cpp b/cmds/statsd/src/packages/UidMap.cpp
index eefb7dc..91279661 100644
--- a/cmds/statsd/src/packages/UidMap.cpp
+++ b/cmds/statsd/src/packages/UidMap.cpp
@@ -281,20 +281,10 @@
 
 void UidMap::clearOutput() {
     mOutput.Clear();
-    // Re-initialize the initial state for the outputs. This results in extra data being uploaded
-    // but helps ensure we can re-construct the UID->app name, versionCode mapping in server.
-    auto snapshot = mOutput.add_snapshots();
-    for (auto it : mMap) {
-        auto t = snapshot->add_package_info();
-        t->set_name(it.second.packageName);
-        t->set_version(it.second.versionCode);
-        t->set_uid(it.first);
-    }
-
     // Also update the guardrail trackers.
     StatsdStats::getInstance().setUidMapChanges(0);
     StatsdStats::getInstance().setUidMapSnapshots(1);
-    mBytesUsed = snapshot->ByteSize();
+    mBytesUsed = 0;
     StatsdStats::getInstance().setCurrentUidMapMemory(mBytesUsed);
 }
 
@@ -348,6 +338,19 @@
                 ++it_deltas;
             }
         }
+
+        if (mOutput.snapshots_size() == 0) {
+            // Produce another snapshot. This results in extra data being uploaded but helps
+            // ensure we can re-construct the UID->app name, versionCode mapping in server.
+            auto snapshot = mOutput.add_snapshots();
+            snapshot->set_timestamp_nanos(timestamp);
+            for (auto it : mMap) {
+                auto t = snapshot->add_package_info();
+                t->set_name(it.second.packageName);
+                t->set_version(it.second.versionCode);
+                t->set_uid(it.first);
+            }
+        }
     }
     mBytesUsed = mOutput.ByteSize();  // Compute actual size after potential deletions.
     StatsdStats::getInstance().setCurrentUidMapMemory(mBytesUsed);
diff --git a/cmds/statsd/src/storage/StorageManager.cpp b/cmds/statsd/src/storage/StorageManager.cpp
index 1d75e20..83b72d9 100644
--- a/cmds/statsd/src/storage/StorageManager.cpp
+++ b/cmds/statsd/src/storage/StorageManager.cpp
@@ -17,11 +17,15 @@
 #define DEBUG true  // STOPSHIP if true
 #include "Log.h"
 
-#include "storage/StorageManager.h"
 #include "android-base/stringprintf.h"
+#include "guardrail/StatsdStats.h"
+#include "storage/StorageManager.h"
 
 #include <android-base/file.h>
 #include <dirent.h>
+#include <private/android_filesystem_config.h>
+#include <fstream>
+#include <iostream>
 
 namespace android {
 namespace os {
@@ -31,6 +35,7 @@
 using android::util::FIELD_TYPE_MESSAGE;
 using std::map;
 
+#define STATS_DATA_DIR "/data/misc/stats-data"
 #define STATS_SERVICE_DIR "/data/misc/stats-service"
 
 // for ConfigMetricsReportList
@@ -39,12 +44,37 @@
 using android::base::StringPrintf;
 using std::unique_ptr;
 
+// Returns array of int64_t which contains timestamp in seconds, uid, and
+// configID.
+static void parseFileName(char* name, int64_t* result) {
+    int index = 0;
+    char* substr = strtok(name, "_");
+    while (substr != nullptr && index < 3) {
+        result[index] = StrToInt64(substr);
+        index++;
+        substr = strtok(nullptr, "_");
+    }
+    // When index ends before hitting 3, file name is corrupted. We
+    // intentionally put -1 at index 0 to indicate the error to caller.
+    // TODO: consider removing files with unexpected name format.
+    if (index < 3) {
+        result[0] = -1;
+    }
+}
+
+static string getFilePath(const char* path, int64_t timestamp, int64_t uid, int64_t configID) {
+    return StringPrintf("%s/%lld-%d-%lld", path, (long long)timestamp, (int)uid,
+                        (long long)configID);
+}
+
 void StorageManager::writeFile(const char* file, const void* buffer, int numBytes) {
     int fd = open(file, O_WRONLY | O_CREAT | O_CLOEXEC, S_IRUSR | S_IWUSR);
     if (fd == -1) {
         VLOG("Attempt to access %s but failed", file);
         return;
     }
+    trimToFit(STATS_SERVICE_DIR);
+    trimToFit(STATS_DATA_DIR);
 
     int result = write(fd, buffer, numBytes);
     if (result == numBytes) {
@@ -52,6 +82,12 @@
     } else {
         VLOG("Failed to write %s", file);
     }
+
+    result = fchown(fd, AID_STATSD, AID_STATSD);
+    if (result) {
+        VLOG("Failed to chown %s to statsd", file);
+    }
+
     close(fd);
 }
 
@@ -78,7 +114,7 @@
     }
 }
 
-void StorageManager::deletePrefixedFiles(const char* path, const char* prefix) {
+void StorageManager::deleteSuffixedFiles(const char* path, const char* suffix) {
     unique_ptr<DIR, decltype(&closedir)> dir(opendir(path), closedir);
     if (dir == NULL) {
         VLOG("Directory does not exist: %s", path);
@@ -88,10 +124,14 @@
     dirent* de;
     while ((de = readdir(dir.get()))) {
         char* name = de->d_name;
-        if (name[0] == '.' || strncmp(name, prefix, strlen(prefix)) != 0) {
+        if (name[0] == '.') {
             continue;
         }
-        deleteFile(StringPrintf("%s/%s", path, name).c_str());
+        size_t nameLen = strlen(name);
+        size_t suffixLen = strlen(suffix);
+        if (suffixLen <= nameLen && strncmp(name + nameLen - suffixLen, suffix, suffixLen) == 0) {
+            deleteFile(StringPrintf("%s/%s", path, name).c_str());
+        }
     }
 }
 
@@ -109,30 +149,20 @@
         if (name[0] == '.') continue;
         VLOG("file %s", name);
 
-        int index = 0;
-        int uid = 0;
-        int64_t configID = 0;
-        char* substr = strtok(name, "-");
-        // Timestamp lives at index 2 but we skip parsing it as it's not needed.
-        while (substr != nullptr && index < 2) {
-            if (index == 0) {
-                uid = atoi(substr);
-            } else if (index == 1) {
-                configID = StrToInt64(substr);
-            }
-            index++;
-            substr = strtok(nullptr, "-");
-        }
-        if (index < 2) continue;
+        int64_t result[3];
+        parseFileName(name, result);
+        if (result[0] == -1) continue;
+        int64_t uid = result[1];
+        int64_t configID = result[2];
 
-        sendBroadcast(ConfigKey(uid, configID));
+        sendBroadcast(ConfigKey((int)uid, configID));
     }
 }
 
-void StorageManager::appendConfigMetricsReport(const char* path, ProtoOutputStream& proto) {
-    unique_ptr<DIR, decltype(&closedir)> dir(opendir(path), closedir);
+void StorageManager::appendConfigMetricsReport(ProtoOutputStream& proto) {
+    unique_ptr<DIR, decltype(&closedir)> dir(opendir(STATS_DATA_DIR), closedir);
     if (dir == NULL) {
-        VLOG("Path %s does not exist", path);
+        VLOG("Path %s does not exist", STATS_DATA_DIR);
         return;
     }
 
@@ -142,25 +172,13 @@
         if (name[0] == '.') continue;
         VLOG("file %s", name);
 
-        int index = 0;
-        int uid = 0;
-        int64_t configID = 0;
-        int64_t timestamp = 0;
-        char* substr = strtok(name, "-");
-        while (substr != nullptr && index < 3) {
-            if (index == 0) {
-                uid = atoi(substr);
-            } else if (index == 1) {
-                configID = StrToInt64(substr);
-            } else if (index == 2) {
-                timestamp = atoi(substr);
-            }
-            index++;
-            substr = strtok(nullptr, "-");
-        }
-        if (index < 3) continue;
-        string file_name = StringPrintf("%s/%d-%lld-%lld", STATS_SERVICE_DIR, uid,
-                                        (long long)configID, (long long)timestamp);
+        int64_t result[3];
+        parseFileName(name, result);
+        if (result[0] == -1) continue;
+        int64_t timestamp = result[0];
+        int64_t uid = result[1];
+        int64_t configID = result[2];
+        string file_name = getFilePath(STATS_DATA_DIR, timestamp, uid, configID);
         int fd = open(file_name.c_str(), O_RDONLY | O_CLOEXEC);
         if (fd != -1) {
             string content;
@@ -182,6 +200,7 @@
         VLOG("no default config on disk");
         return;
     }
+    trimToFit(STATS_SERVICE_DIR);
 
     dirent* de;
     while ((de = readdir(dir.get()))) {
@@ -189,26 +208,13 @@
         if (name[0] == '.') continue;
         VLOG("file %s", name);
 
-        int index = 0;
-        int uid = 0;
-        int64_t configID = 0;
-        int64_t timestamp = 0;
-        char* substr = strtok(name, "-");
-        while (substr != nullptr && index < 3) {
-            if (index == 0) {
-                uid = atoi(substr);
-            } else if (index == 1) {
-                configID = StrToInt64(substr);
-            } else if (index == 2) {
-                timestamp = atoi(substr);
-            }
-            index++;
-            substr = strtok(nullptr, "-");
-        }
-        if (index < 3) continue;
-
-        string file_name = StringPrintf("%s/%d-%lld-%lld", STATS_SERVICE_DIR, uid,
-                                        (long long)configID, (long long)timestamp);
+        int64_t result[3];
+        parseFileName(name, result);
+        if (result[0] == -1) continue;
+        int64_t timestamp = result[0];
+        int64_t uid = result[1];
+        int64_t configID = result[2];
+        string file_name = getFilePath(STATS_SERVICE_DIR, timestamp, uid, configID);
         int fd = open(file_name.c_str(), O_RDONLY | O_CLOEXEC);
         if (fd != -1) {
             string content;
@@ -216,7 +222,7 @@
                 StatsdConfig config;
                 if (config.ParseFromString(content)) {
                     configsMap[ConfigKey(uid, configID)] = config;
-                    VLOG("map key uid=%d|configID=%lld", uid, (long long)configID);
+                    VLOG("map key uid=%lld|configID=%lld", (long long)uid, (long long)configID);
                 }
             }
             close(fd);
@@ -224,6 +230,67 @@
     }
 }
 
+void StorageManager::trimToFit(const char* path) {
+    unique_ptr<DIR, decltype(&closedir)> dir(opendir(path), closedir);
+    if (dir == NULL) {
+        VLOG("Path %s does not exist", path);
+        return;
+    }
+    dirent* de;
+    int totalFileSize = 0;
+    vector<string> fileNames;
+    while ((de = readdir(dir.get()))) {
+        char* name = de->d_name;
+        if (name[0] == '.') continue;
+
+        int64_t result[3];
+        parseFileName(name, result);
+        if (result[0] == -1) continue;
+        int64_t timestamp = result[0];
+        int64_t uid = result[1];
+        int64_t configID = result[2];
+        string file_name = getFilePath(path, timestamp, uid, configID);
+
+        // Check for timestamp and delete if it's too old.
+        long fileAge = time(nullptr) - timestamp;
+        if (fileAge > StatsdStats::kMaxAgeSecond) {
+            deleteFile(file_name.c_str());
+        }
+
+        fileNames.push_back(file_name);
+        ifstream file(file_name.c_str(), ifstream::in | ifstream::binary);
+        if (file.is_open()) {
+            file.seekg(0, ios::end);
+            int fileSize = file.tellg();
+            file.close();
+            totalFileSize += fileSize;
+        }
+    }
+
+    if (fileNames.size() > StatsdStats::kMaxFileNumber ||
+        totalFileSize > StatsdStats::kMaxFileSize) {
+        // Reverse sort to effectively remove from the back (oldest entries).
+        // This will sort files in reverse-chronological order.
+        sort(fileNames.begin(), fileNames.end(), std::greater<std::string>());
+    }
+
+    // Start removing files from oldest to be under the limit.
+    while (fileNames.size() > 0 && (fileNames.size() > StatsdStats::kMaxFileNumber ||
+                                    totalFileSize > StatsdStats::kMaxFileSize)) {
+        string file_name = fileNames.at(fileNames.size() - 1);
+        ifstream file(file_name.c_str(), ifstream::in | ifstream::binary);
+        if (file.is_open()) {
+            file.seekg(0, ios::end);
+            int fileSize = file.tellg();
+            file.close();
+            totalFileSize -= fileSize;
+        }
+
+        deleteFile(file_name.c_str());
+        fileNames.pop_back();
+    }
+}
+
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
diff --git a/cmds/statsd/src/storage/StorageManager.h b/cmds/statsd/src/storage/StorageManager.h
index caf5b8b..d319674 100644
--- a/cmds/statsd/src/storage/StorageManager.h
+++ b/cmds/statsd/src/storage/StorageManager.h
@@ -47,9 +47,9 @@
     static void deleteAllFiles(const char* path);
 
     /**
-     * Deletes all files whose name matches with a provided prefix.
+     * Deletes all files whose name matches with a provided suffix.
      */
-    static void deletePrefixedFiles(const char* path, const char* prefix);
+    static void deleteSuffixedFiles(const char* path, const char* suffix);
 
     /**
      * Send broadcasts to relevant receiver for each data stored on disk.
@@ -61,12 +61,18 @@
      * Appends ConfigMetricsReport found on disk to the specific proto and
      * delete it.
      */
-    static void appendConfigMetricsReport(const char* path, ProtoOutputStream& proto);
+    static void appendConfigMetricsReport(ProtoOutputStream& proto);
 
     /**
      * Call to load the saved configs from disk.
      */
     static void readConfigFromDisk(std::map<ConfigKey, StatsdConfig>& configsMap);
+
+    /**
+     * Trims files in the provided directory to limit the total size, number of
+     * files, accumulation of outdated files.
+     */
+    static void trimToFit(const char* dir);
 };
 
 }  // namespace statsd
diff --git a/cmds/statsd/src/subscriber/SubscriberReporter.cpp b/cmds/statsd/src/subscriber/SubscriberReporter.cpp
new file mode 100644
index 0000000..f912e4b
--- /dev/null
+++ b/cmds/statsd/src/subscriber/SubscriberReporter.cpp
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define DEBUG false  // STOPSHIP if true
+#include "Log.h"
+
+#include "SubscriberReporter.h"
+
+using android::IBinder;
+using std::lock_guard;
+using std::unordered_map;
+
+namespace android {
+namespace os {
+namespace statsd {
+
+void SubscriberReporter::setBroadcastSubscriber(const ConfigKey& configKey,
+                                                int64_t subscriberId,
+                                                const sp<IBinder>& intentSender) {
+    VLOG("SubscriberReporter::setBroadcastSubscriber called.");
+    lock_guard<std::mutex> lock(mLock);
+    mIntentMap[configKey][subscriberId] = intentSender;
+}
+
+void SubscriberReporter::unsetBroadcastSubscriber(const ConfigKey& configKey,
+                                                  int64_t subscriberId) {
+    VLOG("SubscriberReporter::unsetBroadcastSubscriber called.");
+    lock_guard<std::mutex> lock(mLock);
+    auto subscriberMapIt = mIntentMap.find(configKey);
+    if (subscriberMapIt != mIntentMap.end()) {
+        subscriberMapIt->second.erase(subscriberId);
+        if (subscriberMapIt->second.empty()) {
+            mIntentMap.erase(configKey);
+        }
+    }
+}
+
+void SubscriberReporter::removeConfig(const ConfigKey& configKey) {
+    VLOG("SubscriberReporter::removeConfig called.");
+    lock_guard<std::mutex> lock(mLock);
+    mIntentMap.erase(configKey);
+}
+
+void SubscriberReporter::alertBroadcastSubscriber(const ConfigKey& configKey,
+                                                  const Subscription& subscription,
+                                                  const HashableDimensionKey& dimKey) const {
+    // Reminder about ids:
+    //  subscription id - name of the Subscription (that ties the Alert to the broadcast)
+    //  subscription rule_id - the name of the Alert (that triggers the broadcast)
+    //  subscriber_id - name of the PendingIntent to use to send the broadcast
+    //  config uid - the uid that uploaded the config (and therefore gave the PendingIntent,
+    //                 although the intent may be to broadcast to a different uid)
+    //  config id - the name of this config (for this particular uid)
+
+    VLOG("SubscriberReporter::alertBroadcastSubscriber called.");
+    lock_guard<std::mutex> lock(mLock);
+
+    if (!subscription.has_broadcast_subscriber_details()
+            || !subscription.broadcast_subscriber_details().has_subscriber_id()) {
+        ALOGE("Broadcast subscriber does not have an id.");
+        return;
+    }
+    int64_t subscriberId = subscription.broadcast_subscriber_details().subscriber_id();
+
+    auto it1 = mIntentMap.find(configKey);
+    if (it1 == mIntentMap.end()) {
+        ALOGW("Cannot inform subscriber for missing config key %s ", configKey.ToString().c_str());
+        return;
+    }
+    auto it2 = it1->second.find(subscriberId);
+    if (it2 == it1->second.end()) {
+        ALOGW("Cannot inform subscriber of config %s for missing subscriberId %lld ",
+                configKey.ToString().c_str(), (long long)subscriberId);
+        return;
+    }
+    sendBroadcastLocked(it2->second, configKey, subscription, dimKey);
+}
+
+void SubscriberReporter::sendBroadcastLocked(const sp<IBinder>& intentSender,
+                                             const ConfigKey& configKey,
+                                             const Subscription& subscription,
+                                             const HashableDimensionKey& dimKey) const {
+    VLOG("SubscriberReporter::sendBroadcastLocked called.");
+    if (mStatsCompanionService == nullptr) {
+        ALOGW("Failed to send subscriber broadcast: could not access StatsCompanionService.");
+        return;
+    }
+    mStatsCompanionService->sendSubscriberBroadcast(intentSender,
+                                                    configKey.GetUid(),
+                                                    configKey.GetId(),
+                                                    subscription.id(),
+                                                    subscription.rule_id(),
+                                                    protoToStatsDimensionsValue(dimKey));
+}
+
+StatsDimensionsValue SubscriberReporter::protoToStatsDimensionsValue(
+        const HashableDimensionKey& dimKey) {
+    return protoToStatsDimensionsValue(dimKey.getDimensionsValue());
+}
+
+StatsDimensionsValue SubscriberReporter::protoToStatsDimensionsValue(
+        const DimensionsValue& protoDimsVal) {
+    int32_t field = protoDimsVal.field();
+
+    switch (protoDimsVal.value_case()) {
+        case DimensionsValue::ValueCase::kValueStr:
+            return StatsDimensionsValue(field, String16(protoDimsVal.value_str().c_str()));
+        case DimensionsValue::ValueCase::kValueInt:
+            return StatsDimensionsValue(field, static_cast<int32_t>(protoDimsVal.value_int()));
+        case DimensionsValue::ValueCase::kValueLong:
+            return StatsDimensionsValue(field, static_cast<int64_t>(protoDimsVal.value_long()));
+        case DimensionsValue::ValueCase::kValueBool:
+            return StatsDimensionsValue(field, static_cast<bool>(protoDimsVal.value_bool()));
+        case DimensionsValue::ValueCase::kValueFloat:
+            return StatsDimensionsValue(field, static_cast<float>(protoDimsVal.value_float()));
+        case DimensionsValue::ValueCase::kValueTuple:
+            {
+                int sz = protoDimsVal.value_tuple().dimensions_value_size();
+                std::vector<StatsDimensionsValue> sdvVec(sz);
+                for (int i = 0; i < sz; i++) {
+                    sdvVec[i] = protoToStatsDimensionsValue(
+                            protoDimsVal.value_tuple().dimensions_value(i));
+                }
+                return StatsDimensionsValue(field, sdvVec);
+            }
+        default:
+            ALOGW("protoToStatsDimensionsValue failed: illegal type.");
+            return StatsDimensionsValue();
+    }
+}
+
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
diff --git a/cmds/statsd/src/subscriber/SubscriberReporter.h b/cmds/statsd/src/subscriber/SubscriberReporter.h
new file mode 100644
index 0000000..5bb458a
--- /dev/null
+++ b/cmds/statsd/src/subscriber/SubscriberReporter.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <android/os/IStatsCompanionService.h>
+#include <utils/RefBase.h>
+
+#include "config/ConfigKey.h"
+#include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"  // subscription
+#include "frameworks/base/cmds/statsd/src/stats_log.pb.h"  // DimensionsValue
+#include "android/os/StatsDimensionsValue.h"
+#include "HashableDimensionKey.h"
+
+#include <mutex>
+#include <unordered_map>
+
+namespace android {
+namespace os {
+namespace statsd {
+
+// Reports information to subscribers.
+// Single instance shared across the process. All methods are thread safe.
+class SubscriberReporter {
+public:
+    /** Get (singleton) instance of SubscriberReporter. */
+    static SubscriberReporter& getInstance() {
+        static SubscriberReporter subscriberReporter;
+        return subscriberReporter;
+    }
+
+    ~SubscriberReporter(){};
+    SubscriberReporter(SubscriberReporter const&) = delete;
+    void operator=(SubscriberReporter const&) = delete;
+
+    /**
+     * Tells SubscriberReporter what IStatsCompanionService to use.
+     * May be nullptr, but SubscriberReporter will not send broadcasts for any calls
+     * to alertBroadcastSubscriber that occur while nullptr.
+     */
+    void setStatsCompanionService(sp<IStatsCompanionService> statsCompanionService) {
+        std::lock_guard<std::mutex> lock(mLock);
+        sp<IStatsCompanionService> tmpForLock = mStatsCompanionService;
+        mStatsCompanionService = statsCompanionService;
+    }
+
+    /**
+     * Stores the given intentSender, associating it with the given (configKey, subscriberId) pair.
+     * intentSender must be convertible into an IntentSender (in Java) using IntentSender(IBinder).
+     */
+    void setBroadcastSubscriber(const ConfigKey& configKey,
+                                int64_t subscriberId,
+                                const sp<android::IBinder>& intentSender);
+
+    /**
+     * Erases any intentSender information from the given (configKey, subscriberId) pair.
+     */
+    void unsetBroadcastSubscriber(const ConfigKey& configKey, int64_t subscriberId);
+
+    /** Remove all information stored by SubscriberReporter about the given config. */
+    void removeConfig(const ConfigKey& configKey);
+
+    /**
+     * Sends a broadcast via the intentSender previously stored for the
+     * given (configKey, subscriberId) pair by setBroadcastSubscriber.
+     * Information about the subscriber, as well as information extracted from the dimKey, is sent.
+     */
+    void alertBroadcastSubscriber(const ConfigKey& configKey,
+                                  const Subscription& subscription,
+                                  const HashableDimensionKey& dimKey) const;
+
+private:
+    SubscriberReporter() {};
+
+    mutable std::mutex mLock;
+
+    /** Binder interface for communicating with StatsCompanionService. */
+    sp<IStatsCompanionService> mStatsCompanionService = nullptr;
+
+    /** Maps <ConfigKey, SubscriberId> -> IBinder (which represents an IIntentSender). */
+    std::unordered_map<ConfigKey,
+            std::unordered_map<int64_t, sp<android::IBinder>>> mIntentMap;
+
+    /**
+     * Sends a broadcast via the given intentSender (using mStatsCompanionService), along
+     * with the information in the other parameters.
+     */
+    void sendBroadcastLocked(const sp<android::IBinder>& intentSender,
+                             const ConfigKey& configKey,
+                             const Subscription& subscription,
+                             const HashableDimensionKey& dimKey) const;
+
+    /** Converts a stats_log.proto DimensionsValue to a StatsDimensionsValue. */
+    static StatsDimensionsValue protoToStatsDimensionsValue(
+            const DimensionsValue& protoDimsVal);
+
+    /** Converts a HashableDimensionKey to a StatsDimensionsValue. */
+    static StatsDimensionsValue protoToStatsDimensionsValue(
+            const HashableDimensionKey& dimKey);
+};
+
+}  // namespace statsd
+}  // namespace os
+}  // namespace android
diff --git a/cmds/statsd/tests/UidMap_test.cpp b/cmds/statsd/tests/UidMap_test.cpp
index 5292f24..f26c10d 100644
--- a/cmds/statsd/tests/UidMap_test.cpp
+++ b/cmds/statsd/tests/UidMap_test.cpp
@@ -178,16 +178,16 @@
     EXPECT_EQ(1, results.snapshots_size());
 
     // It should be cleared now
-    EXPECT_EQ(0, m.mOutput.snapshots_size());
+    EXPECT_EQ(1, m.mOutput.snapshots_size());
     results = m.getOutput(3, config1);
-    EXPECT_EQ(0, results.snapshots_size());
+    EXPECT_EQ(1, results.snapshots_size());
 
     // Now add another configuration.
     m.OnConfigUpdated(config2);
     m.updateApp(5, String16(kApp1.c_str()), 1000, 40);
     EXPECT_EQ(1, m.mOutput.changes_size());
     results = m.getOutput(6, config1);
-    EXPECT_EQ(0, results.snapshots_size());
+    EXPECT_EQ(1, results.snapshots_size());
     EXPECT_EQ(1, results.changes_size());
     EXPECT_EQ(1, m.mOutput.changes_size());
 
@@ -197,15 +197,15 @@
 
     // We still can't remove anything.
     results = m.getOutput(8, config1);
-    EXPECT_EQ(0, results.snapshots_size());
+    EXPECT_EQ(1, results.snapshots_size());
     EXPECT_EQ(2, results.changes_size());
     EXPECT_EQ(2, m.mOutput.changes_size());
 
     results = m.getOutput(9, config2);
-    EXPECT_EQ(0, results.snapshots_size());
+    EXPECT_EQ(1, results.snapshots_size());
     EXPECT_EQ(2, results.changes_size());
     // At this point both should be cleared.
-    EXPECT_EQ(0, m.mOutput.snapshots_size());
+    EXPECT_EQ(1, m.mOutput.snapshots_size());
     EXPECT_EQ(0, m.mOutput.changes_size());
 }
 
@@ -228,10 +228,8 @@
 
     m.updateApp(3, String16(kApp1.c_str()), 1000, 40);
     EXPECT_TRUE(m.mBytesUsed > snapshot_bytes);
-    size_t bytesWithSnapshotChange = m.mBytesUsed;
 
     m.getOutput(2, config1);
-    EXPECT_TRUE(m.mBytesUsed < bytesWithSnapshotChange);
     size_t prevBytes = m.mBytesUsed;
 
     m.getOutput(4, config1);
diff --git a/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/MainActivity.java b/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/MainActivity.java
index 4f9032f..d39aa1d 100644
--- a/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/MainActivity.java
+++ b/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/MainActivity.java
@@ -16,12 +16,12 @@
 package com.android.statsd.dogfood;
 
 import android.app.Activity;
+import android.app.StatsManager;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.util.Log;
 import android.util.StatsLog;
-import android.util.StatsManager;
 import android.view.View;
 import android.widget.TextView;
 import android.widget.Toast;
diff --git a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/LoadtestActivity.java b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/LoadtestActivity.java
index 26c1c72..652f6b2 100644
--- a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/LoadtestActivity.java
+++ b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/LoadtestActivity.java
@@ -19,6 +19,7 @@
 import android.app.Activity;
 import android.app.AlarmManager;
 import android.app.PendingIntent;
+import android.app.StatsManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -34,7 +35,6 @@
 import android.text.TextWatcher;
 import android.util.Log;
 import android.util.StatsLog;
-import android.util.StatsManager;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 import android.view.MotionEvent;
diff --git a/config/hiddenapi-blacklist.txt b/config/hiddenapi-blacklist.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/config/hiddenapi-blacklist.txt
diff --git a/config/hiddenapi-dark-greylist.txt b/config/hiddenapi-dark-greylist.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/config/hiddenapi-dark-greylist.txt
diff --git a/core/java/Android.bp b/core/java/Android.bp
index afa08e6..f7c5c57 100644
--- a/core/java/Android.bp
+++ b/core/java/Android.bp
@@ -11,7 +11,8 @@
 // only used by key_store_service
 cc_library_shared {
     name: "libkeystore_aidl",
-    srcs: ["android/security/IKeystoreService.aidl"],
+    srcs: ["android/security/IKeystoreService.aidl",
+           "android/security/IConfirmationPromptCallback.aidl"],
     aidl: {
         export_aidl_headers: true,
         include_dirs: [
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 1931acf..4d5ac6f 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -28,7 +28,6 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.content.UriPermission;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.ConfigurationInfo;
@@ -181,7 +180,8 @@
             BUGREPORT_OPTION_INTERACTIVE,
             BUGREPORT_OPTION_REMOTE,
             BUGREPORT_OPTION_WEAR,
-            BUGREPORT_OPTION_TELEPHONY
+            BUGREPORT_OPTION_TELEPHONY,
+            BUGREPORT_OPTION_WIFI
     })
     public @interface BugreportMode {}
     /**
@@ -216,6 +216,12 @@
     public static final int BUGREPORT_OPTION_TELEPHONY = 4;
 
     /**
+     * Takes a lightweight bugreport that only includes a few sections related to Wifi.
+     * @hide
+     */
+    public static final int BUGREPORT_OPTION_WIFI = 5;
+
+    /**
      * <a href="{@docRoot}guide/topics/manifest/meta-data-element.html">{@code
      * <meta-data>}</a> name for a 'home' Activity that declares a package that is to be
      * uninstalled in lieu of the declaring one.  The package named here must be
@@ -2729,17 +2735,22 @@
     /**
      * Permits an application to get the persistent URI permissions granted to another.
      *
-     * <p>Typically called by Settings.
+     * <p>Typically called by Settings or DocumentsUI, requires
+     * {@code GET_APP_GRANTED_URI_PERMISSIONS}.
      *
-     * @param packageName application to look for the granted permissions
+     * @param packageName application to look for the granted permissions, or {@code null} to get
+     * granted permissions for all applications
      * @return list of granted URI permissions
      *
      * @hide
      */
-    public ParceledListSlice<UriPermission> getGrantedUriPermissions(String packageName) {
+    public ParceledListSlice<GrantedUriPermission> getGrantedUriPermissions(
+            @Nullable String packageName) {
         try {
-            return getService().getGrantedUriPermissions(packageName,
-                    UserHandle.myUserId());
+            @SuppressWarnings("unchecked")
+            final ParceledListSlice<GrantedUriPermission> castedList = getService()
+                    .getGrantedUriPermissions(packageName, UserHandle.myUserId());
+            return castedList;
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -2748,7 +2759,7 @@
     /**
      * Permits an application to clear the persistent URI permissions granted to another.
      *
-     * <p>Typically called by Settings.
+     * <p>Typically called by Settings, requires {@code CLEAR_APP_GRANTED_URI_PERMISSIONS}.
      *
      * @param packageName application to clear its granted permissions
      *
diff --git a/core/java/android/app/ActivityView.java b/core/java/android/app/ActivityView.java
index ac6cba1..5d0143a 100644
--- a/core/java/android/app/ActivityView.java
+++ b/core/java/android/app/ActivityView.java
@@ -17,6 +17,7 @@
 package android.app;
 
 import android.annotation.NonNull;
+import android.app.ActivityManager.StackInfo;
 import android.content.Context;
 import android.content.Intent;
 import android.hardware.display.DisplayManager;
@@ -38,6 +39,8 @@
 
 import dalvik.system.CloseGuard;
 
+import java.util.List;
+
 /**
  * Activity container that allows launching activities into itself and does input forwarding.
  * <p>Creation of this view is only allowed to callers who have
@@ -58,10 +61,13 @@
     private final SurfaceCallback mSurfaceCallback;
     private StateCallback mActivityViewCallback;
 
+    private IActivityManager mActivityManager;
     private IInputForwarder mInputForwarder;
     // Temp container to store view coordinates on screen.
     private final int[] mLocationOnScreen = new int[2];
 
+    private TaskStackListener mTaskStackListener;
+
     private final CloseGuard mGuard = CloseGuard.get();
     private boolean mOpened; // Protected by mGuard.
 
@@ -76,6 +82,7 @@
     public ActivityView(Context context, AttributeSet attrs, int defStyle) {
         super(context, attrs, defStyle);
 
+        mActivityManager = ActivityManager.getService();
         mSurfaceView = new SurfaceView(context);
         mSurfaceCallback = new SurfaceCallback();
         mSurfaceView.getHolder().addCallback(mSurfaceCallback);
@@ -303,6 +310,12 @@
 
         mInputForwarder = InputManager.getInstance().createInputForwarder(
                 mVirtualDisplay.getDisplay().getDisplayId());
+        mTaskStackListener = new TaskBackgroundChangeListener();
+        try {
+            mActivityManager.registerTaskStackListener(mTaskStackListener);
+        } catch (RemoteException e) {
+            Log.e(TAG, "Failed to register task stack listener", e);
+        }
     }
 
     private void performRelease() {
@@ -317,6 +330,15 @@
         }
         cleanTapExcludeRegion();
 
+        if (mTaskStackListener != null) {
+            try {
+                mActivityManager.unregisterTaskStackListener(mTaskStackListener);
+            } catch (RemoteException e) {
+                Log.e(TAG, "Failed to unregister task stack listener", e);
+            }
+            mTaskStackListener = null;
+        }
+
         final boolean displayReleased;
         if (mVirtualDisplay != null) {
             mVirtualDisplay.release();
@@ -369,4 +391,42 @@
             super.finalize();
         }
     }
+
+    /**
+     * A task change listener that detects background color change of the topmost stack on our
+     * virtual display and updates the background of the surface view. This background will be shown
+     * when surface view is resized, but the app hasn't drawn its content in new size yet.
+     */
+    private class TaskBackgroundChangeListener extends TaskStackListener {
+
+        @Override
+        public void onTaskDescriptionChanged(int taskId, ActivityManager.TaskDescription td)
+                throws RemoteException {
+            if (mVirtualDisplay == null) {
+                return;
+            }
+
+            // Find the topmost task on our virtual display - it will define the background
+            // color of the surface view during resizing.
+            final int displayId = mVirtualDisplay.getDisplay().getDisplayId();
+            final List<StackInfo> stackInfoList = mActivityManager.getAllStackInfos();
+
+            // Iterate through stacks from top to bottom.
+            final int stackCount = stackInfoList.size();
+            for (int i = 0; i < stackCount; i++) {
+                final StackInfo stackInfo = stackInfoList.get(i);
+                // Only look for stacks on our virtual display.
+                if (stackInfo.displayId != displayId) {
+                    continue;
+                }
+                // Found the topmost stack on target display. Now check if the topmost task's
+                // description changed.
+                if (taskId == stackInfo.taskIds[stackInfo.taskIds.length - 1]) {
+                    mSurfaceView.setResizeBackgroundColor(td.getBackgroundColor());
+                }
+                break;
+            }
+        }
+    }
+
 }
diff --git a/core/java/android/app/AppOpsManager.java b/core/java/android/app/AppOpsManager.java
index 7ca6802..e923fb2 100644
--- a/core/java/android/app/AppOpsManager.java
+++ b/core/java/android/app/AppOpsManager.java
@@ -263,8 +263,10 @@
     public static final int OP_REQUEST_DELETE_PACKAGES = 72;
     /** @hide Bind an accessibility service. */
     public static final int OP_BIND_ACCESSIBILITY_SERVICE = 73;
+    /** @hide Continue handover of a call from another app */
+    public static final int OP_ACCEPT_HANDOVER = 74;
     /** @hide */
-    public static final int _NUM_OP = 74;
+    public static final int _NUM_OP = 75;
 
     /** Access to coarse location information. */
     public static final String OPSTR_COARSE_LOCATION = "android:coarse_location";
@@ -378,7 +380,13 @@
     /** Answer incoming phone calls */
     public static final String OPSTR_ANSWER_PHONE_CALLS
             = "android:answer_phone_calls";
-
+    /**
+     * Accept call handover
+     * @hide
+     */
+    @SystemApi @TestApi
+    public static final String OPSTR_ACCEPT_HANDOVER
+            = "android:accept_handover";
     /** @hide */
     @SystemApi @TestApi
     public static final String OPSTR_GPS = "android:gps";
@@ -528,6 +536,7 @@
             OP_USE_SIP,
             OP_PROCESS_OUTGOING_CALLS,
             OP_ANSWER_PHONE_CALLS,
+            OP_ACCEPT_HANDOVER,
             // Microphone
             OP_RECORD_AUDIO,
             // Camera
@@ -626,6 +635,7 @@
             OP_CHANGE_WIFI_STATE,
             OP_REQUEST_DELETE_PACKAGES,
             OP_BIND_ACCESSIBILITY_SERVICE,
+            OP_ACCEPT_HANDOVER,
     };
 
     /**
@@ -706,6 +716,7 @@
             OPSTR_CHANGE_WIFI_STATE,
             OPSTR_REQUEST_DELETE_PACKAGES,
             OPSTR_BIND_ACCESSIBILITY_SERVICE,
+            OPSTR_ACCEPT_HANDOVER,
     };
 
     /**
@@ -787,6 +798,7 @@
             "CHANGE_WIFI_STATE",
             "REQUEST_DELETE_PACKAGES",
             "BIND_ACCESSIBILITY_SERVICE",
+            "ACCEPT_HANDOVER",
     };
 
     /**
@@ -868,6 +880,7 @@
             Manifest.permission.CHANGE_WIFI_STATE,
             Manifest.permission.REQUEST_DELETE_PACKAGES,
             Manifest.permission.BIND_ACCESSIBILITY_SERVICE,
+            Manifest.permission.ACCEPT_HANDOVER,
     };
 
     /**
@@ -950,6 +963,7 @@
             null, // OP_CHANGE_WIFI_STATE
             null, // REQUEST_DELETE_PACKAGES
             null, // OP_BIND_ACCESSIBILITY_SERVICE
+            null, // ACCEPT_HANDOVER
     };
 
     /**
@@ -1031,6 +1045,7 @@
             false, // OP_CHANGE_WIFI_STATE
             false, // OP_REQUEST_DELETE_PACKAGES
             false, // OP_BIND_ACCESSIBILITY_SERVICE
+            false, // ACCEPT_HANDOVER
     };
 
     /**
@@ -1111,6 +1126,7 @@
             AppOpsManager.MODE_ALLOWED,  // OP_CHANGE_WIFI_STATE
             AppOpsManager.MODE_ALLOWED,  // REQUEST_DELETE_PACKAGES
             AppOpsManager.MODE_ALLOWED,  // OP_BIND_ACCESSIBILITY_SERVICE
+            AppOpsManager.MODE_ALLOWED,  // ACCEPT_HANDOVER
     };
 
     /**
@@ -1195,6 +1211,7 @@
             false, // OP_CHANGE_WIFI_STATE
             false, // OP_REQUEST_DELETE_PACKAGES
             false, // OP_BIND_ACCESSIBILITY_SERVICE
+            false, // ACCEPT_HANDOVER
     };
 
     /**
diff --git a/core/java/android/app/ContextImpl.java b/core/java/android/app/ContextImpl.java
index 4914ffa..ea94042 100644
--- a/core/java/android/app/ContextImpl.java
+++ b/core/java/android/app/ContextImpl.java
@@ -913,14 +913,14 @@
 
     /** @hide */
     @Override
-    public void startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
+    public int startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
         if ((intents[0].getFlags()&Intent.FLAG_ACTIVITY_NEW_TASK) == 0) {
             throw new AndroidRuntimeException(
                     "Calling startActivities() from outside of an Activity "
                     + " context requires the FLAG_ACTIVITY_NEW_TASK flag on first Intent."
                     + " Is this really what you want?");
         }
-        mMainThread.getInstrumentation().execStartActivitiesAsUser(
+        return mMainThread.getInstrumentation().execStartActivitiesAsUser(
                 getOuterContext(), mMainThread.getApplicationThread(), null,
                 (Activity) null, intents, options, userHandle.getIdentifier());
     }
diff --git a/core/java/android/app/GrantedUriPermission.aidl b/core/java/android/app/GrantedUriPermission.aidl
new file mode 100644
index 0000000..2734af0
--- /dev/null
+++ b/core/java/android/app/GrantedUriPermission.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.app;
+
+/** @hide */
+parcelable GrantedUriPermission;
\ No newline at end of file
diff --git a/core/java/android/app/GrantedUriPermission.java b/core/java/android/app/GrantedUriPermission.java
new file mode 100644
index 0000000..9e84fe1
--- /dev/null
+++ b/core/java/android/app/GrantedUriPermission.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.app;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.UriPermission;
+import android.net.Uri;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * Represents an {@link UriPermission} granted to a package.
+ *
+ * {@hide}
+ */
+public class GrantedUriPermission implements Parcelable {
+
+    public final Uri uri;
+    public final String packageName;
+
+    public GrantedUriPermission(@NonNull Uri uri, @Nullable String packageName) {
+        this.uri = uri;
+        this.packageName = packageName;
+    }
+
+    @Override
+    public String toString() {
+        return packageName + ":" + uri;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeParcelable(uri, flags);
+        out.writeString(packageName);
+    }
+
+    public static final Parcelable.Creator<GrantedUriPermission> CREATOR =
+            new Parcelable.Creator<GrantedUriPermission>() {
+                @Override
+                public GrantedUriPermission createFromParcel(Parcel in) {
+                    return new GrantedUriPermission(in);
+                }
+
+                @Override
+                public GrantedUriPermission[] newArray(int size) {
+                    return new GrantedUriPermission[size];
+                }
+            };
+
+    private GrantedUriPermission(Parcel in) {
+        uri = in.readParcelable(null);
+        packageName = in.readString();
+    }
+}
diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 5f5d834..5382e66 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -19,6 +19,7 @@
 import android.app.ActivityManager;
 import android.app.ApplicationErrorReport;
 import android.app.ContentProviderHolder;
+import android.app.GrantedUriPermission;
 import android.app.IApplicationThread;
 import android.app.IActivityController;
 import android.app.IAppTask;
@@ -357,6 +358,20 @@
      */
     void requestTelephonyBugReport(in String shareTitle, in String shareDescription);
 
+    /**
+     *  Deprecated - This method is only used by Wifi, and it will soon be replaced by a proper
+     *  bug report API.
+     *
+     *  Takes a minimal bugreport of Wifi-related state.
+     *
+     *  @param shareTitle should be a valid legible string less than 50 chars long
+     *  @param shareDescription should be less than 91 bytes when encoded into UTF-8 format
+     *
+     *  @throws IllegalArgumentException if shareTitle or shareDescription is too big or if the
+     *          parameters cannot be encoding to an UTF-8 charset.
+     */
+    void requestWifiBugReport(in String shareTitle, in String shareDescription);
+
     long inputDispatchingTimedOut(int pid, boolean aboveSystem, in String reason);
     void clearPendingBackup();
     Intent getIntentForIntentSender(in IIntentSender sender);
@@ -555,7 +570,7 @@
             in Rect tempDockedTaskInsetBounds,
             in Rect tempOtherTaskBounds, in Rect tempOtherTaskInsetBounds);
     int setVrMode(in IBinder token, boolean enabled, in ComponentName packageName);
-    // Gets the URI permissions granted to an arbitrary package.
+    // Gets the URI permissions granted to an arbitrary package (or all packages if null)
     // NOTE: this is different from getPersistedUriPermissions(), which returns the URIs the package
     // granted to another packages (instead of those granted to it).
     ParceledListSlice getGrantedUriPermissions(in String packageName, int userId);
diff --git a/core/java/android/app/IBackupAgent.aidl b/core/java/android/app/IBackupAgent.aidl
index 4a85efd..3aeef14 100644
--- a/core/java/android/app/IBackupAgent.aidl
+++ b/core/java/android/app/IBackupAgent.aidl
@@ -49,11 +49,13 @@
      *
      * @param callbackBinder Binder on which to indicate operation completion,
      *        passed here as a convenience to the agent.
+     *
+     * @param transportFlags Flags with additional information about the transport.
      */
     void doBackup(in ParcelFileDescriptor oldState,
             in ParcelFileDescriptor data,
             in ParcelFileDescriptor newState,
-            long quotaBytes, int token, IBackupManager callbackBinder);
+            long quotaBytes, int token, IBackupManager callbackBinder, int transportFlags);
 
     /**
      * Restore an entire data snapshot to the application.
@@ -100,13 +102,17 @@
      *
      * @param callbackBinder Binder on which to indicate operation completion,
      *        passed here as a convenience to the agent.
+     *
+     * @param transportFlags Flags with additional information about transport.
      */
-    void doFullBackup(in ParcelFileDescriptor data, long quotaBytes, int token, IBackupManager callbackBinder);
+    void doFullBackup(in ParcelFileDescriptor data, long quotaBytes, int token,
+            IBackupManager callbackBinder, int transportFlags);
 
     /**
      * Estimate how much data a full backup will deliver
      */
-    void doMeasureFullBackup(long quotaBytes, int token, IBackupManager callbackBinder);
+    void doMeasureFullBackup(long quotaBytes, int token, IBackupManager callbackBinder,
+            int transportFlags);
 
     /**
      * Tells the application agent that the backup data size exceeded current transport quota.
diff --git a/core/java/android/app/Instrumentation.java b/core/java/android/app/Instrumentation.java
index 3c38a4e..f90b276 100644
--- a/core/java/android/app/Instrumentation.java
+++ b/core/java/android/app/Instrumentation.java
@@ -1688,9 +1688,13 @@
      * {@link ActivityMonitor} objects only match against the first activity in
      * the array.
      *
+     * @return The corresponding flag {@link ActivityManager#START_CANCELED},
+     *         {@link ActivityManager#START_SUCCESS} etc. indicating whether the launch was
+     *         successful.
+     *
      * {@hide}
      */
-    public void execStartActivitiesAsUser(Context who, IBinder contextThread,
+    public int execStartActivitiesAsUser(Context who, IBinder contextThread,
             IBinder token, Activity target, Intent[] intents, Bundle options,
             int userId) {
         IApplicationThread whoThread = (IApplicationThread) contextThread;
@@ -1705,11 +1709,11 @@
                     }
                     if (result != null) {
                         am.mHits++;
-                        return;
+                        return ActivityManager.START_CANCELED;
                     } else if (am.match(who, null, intents[0])) {
                         am.mHits++;
                         if (am.isBlocking()) {
-                            return;
+                            return ActivityManager.START_CANCELED;
                         }
                         break;
                     }
@@ -1727,6 +1731,7 @@
                 .startActivities(whoThread, who.getBasePackageName(), intents, resolvedTypes,
                         token, options, userId);
             checkStartActivityResult(result, intents[0]);
+            return result;
         } catch (RemoteException e) {
             throw new RuntimeException("Failure from system", e);
         }
diff --git a/core/java/android/app/LoadedApk.java b/core/java/android/app/LoadedApk.java
index 26f4980..d24d4f3 100644
--- a/core/java/android/app/LoadedApk.java
+++ b/core/java/android/app/LoadedApk.java
@@ -28,6 +28,7 @@
 import android.content.pm.IPackageManager;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.dex.ArtManager;
 import android.content.pm.split.SplitDependencyLoader;
 import android.content.res.AssetManager;
 import android.content.res.CompatibilityInfo;
@@ -35,7 +36,6 @@
 import android.content.res.Resources;
 import android.os.Build;
 import android.os.Bundle;
-import android.os.Environment;
 import android.os.FileUtils;
 import android.os.Handler;
 import android.os.IBinder;
@@ -49,13 +49,15 @@
 import android.util.AndroidRuntimeException;
 import android.util.ArrayMap;
 import android.util.Log;
-import android.util.LogPrinter;
 import android.util.Slog;
 import android.util.SparseArray;
 import android.view.Display;
 import android.view.DisplayAdjustments;
+
 import com.android.internal.util.ArrayUtils;
+
 import dalvik.system.VMRuntime;
+
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
@@ -749,13 +751,6 @@
         }
     }
 
-    // Keep in sync with installd (frameworks/native/cmds/installd/commands.cpp).
-    private static File getPrimaryProfileFile(String packageName) {
-        File profileDir = Environment.getDataProfilesDePackageDirectory(
-                UserHandle.myUserId(), packageName);
-        return new File(profileDir, "primary.prof");
-    }
-
     private void setupJitProfileSupport() {
         if (!SystemProperties.getBoolean("dalvik.vm.usejitprofiles", false)) {
             return;
@@ -783,10 +778,12 @@
             return;
         }
 
-        final File profileFile = getPrimaryProfileFile(mPackageName);
-
-        VMRuntime.registerAppInfo(profileFile.getPath(),
-                codePaths.toArray(new String[codePaths.size()]));
+        for (int i = codePaths.size() - 1; i >= 0; i--) {
+            String splitName = i == 0 ? null : mApplicationInfo.splitNames[i - 1];
+            String profileFile = ArtManager.getCurrentProfilePath(
+                    mPackageName, UserHandle.myUserId(), splitName);
+            VMRuntime.registerAppInfo(profileFile, new String[] {codePaths.get(i)});
+        }
 
         // Register the app data directory with the reporter. It will
         // help deciding whether or not a dex file is the primary apk or a
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index d6fddfc..0b5b363 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -200,6 +200,16 @@
      */
     private static final int MAX_REPLY_HISTORY = 5;
 
+
+    /**
+     * If the notification contained an unsent draft for a RemoteInput when the user clicked on it,
+     * we're adding the draft as a String extra to the {@link #contentIntent} using this key.
+     *
+     * <p>Apps may use this extra to prepopulate text fields in the app, where the user usually
+     * sends messages.</p>
+     */
+    public static final String EXTRA_REMOTE_INPUT_DRAFT = "android.remoteInputDraft";
+
     /**
      * A timestamp related to this notification, in milliseconds since the epoch.
      *
diff --git a/core/java/android/app/Service.java b/core/java/android/app/Service.java
index 256c479..ea0fd75 100644
--- a/core/java/android/app/Service.java
+++ b/core/java/android/app/Service.java
@@ -471,14 +471,6 @@
      * {@link #onStart} and returns either {@link #START_STICKY}
      * or {@link #START_STICKY_COMPATIBILITY}.
      * 
-     * <p>If you need your application to run on platform versions prior to API
-     * level 5, you can use the following model to handle the older {@link #onStart}
-     * callback in that case.  The <code>handleCommand</code> method is implemented by
-     * you as appropriate:
-     * 
-     * {@sample development/samples/ApiDemos/src/com/example/android/apis/app/ForegroundService.java
-     *   start_compatibility}
-     *
      * <p class="caution">Note that the system calls this on your
      * service's main thread.  A service's main thread is the same
      * thread where UI operations take place for Activities running in the
@@ -687,6 +679,10 @@
      * {@link #startService(Intent)} first to tell the system it should keep the service running,
      * and then use this method to tell it to keep it running harder.</p>
      *
+     * <p>Apps targeting API {@link android.os.Build.VERSION_CODES#P} or later must request
+     * the permission {@link android.Manifest.permission#FOREGROUND_SERVICE} in order to use
+     * this API.</p>
+     *
      * @param id The identifier for this notification as per
      * {@link NotificationManager#notify(int, Notification)
      * NotificationManager.notify(int, Notification)}; must not be 0.
diff --git a/core/java/android/app/StatsManager.java b/core/java/android/app/StatsManager.java
new file mode 100644
index 0000000..c525c89
--- /dev/null
+++ b/core/java/android/app/StatsManager.java
@@ -0,0 +1,244 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.app;
+
+import android.Manifest;
+import android.annotation.RequiresPermission;
+import android.annotation.SystemApi;
+import android.os.IBinder;
+import android.os.IStatsManager;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.util.Slog;
+
+/**
+ * API for statsd clients to send configurations and retrieve data.
+ *
+ * @hide
+ */
+@SystemApi
+public final class StatsManager extends android.util.StatsManager { // TODO: Remove the extends.
+    IStatsManager mService;
+    private static final String TAG = "StatsManager";
+
+    /** Long extra of uid that added the relevant stats config. */
+    public static final String EXTRA_STATS_CONFIG_UID =
+            "android.app.extra.STATS_CONFIG_UID";
+    /** Long extra of the relevant stats config's configKey. */
+    public static final String EXTRA_STATS_CONFIG_KEY =
+            "android.app.extra.STATS_CONFIG_KEY";
+    /** Long extra of the relevant statsd_config.proto's Subscription.id. */
+    public static final String EXTRA_STATS_SUBSCRIPTION_ID =
+            "android.app.extra.STATS_SUBSCRIPTION_ID";
+    /** Long extra of the relevant statsd_config.proto's Subscription.rule_id. */
+    public static final String EXTRA_STATS_SUBSCRIPTION_RULE_ID =
+            "android.app.extra.STATS_SUBSCRIPTION_RULE_ID";
+    /**
+     * Extra of a {@link android.os.StatsDimensionsValue} representing sliced dimension value
+     * information.
+     */
+    public static final String EXTRA_STATS_DIMENSIONS_VALUE =
+            "android.app.extra.STATS_DIMENSIONS_VALUE";
+
+    /**
+     * Broadcast Action: Statsd has started.
+     * Configurations and PendingIntents can now be sent to it.
+     */
+    public static final String ACTION_STATSD_STARTED = "android.app.action.STATSD_STARTED";
+
+    /**
+     * Constructor for StatsManagerClient.
+     *
+     * @hide
+     */
+    public StatsManager() {
+    }
+
+    /**
+     * Clients can send a configuration and simultaneously registers the name of a broadcast
+     * receiver that listens for when it should request data.
+     *
+     * @param configKey An arbitrary integer that allows clients to track the configuration.
+     * @param config    Wire-encoded StatsDConfig proto that specifies metrics (and all
+     *                  dependencies eg, conditions and matchers).
+     * @param pkg       The package name to receive the broadcast.
+     * @param cls       The name of the class that receives the broadcast.
+     * @return true if successful
+     */
+    @RequiresPermission(Manifest.permission.DUMP)
+    public boolean addConfiguration(long configKey, byte[] config, String pkg, String cls) {
+        synchronized (this) {
+            try {
+                IStatsManager service = getIStatsManagerLocked();
+                if (service == null) {
+                    Slog.d(TAG, "Failed to find statsd when adding configuration");
+                    return false;
+                }
+                return service.addConfiguration(configKey, config, pkg, cls);
+            } catch (RemoteException e) {
+                Slog.d(TAG, "Failed to connect to statsd when adding configuration");
+                return false;
+            }
+        }
+    }
+
+    /**
+     * Remove a configuration from logging.
+     *
+     * @param configKey Configuration key to remove.
+     * @return true if successful
+     */
+    @RequiresPermission(Manifest.permission.DUMP)
+    public boolean removeConfiguration(long configKey) {
+        synchronized (this) {
+            try {
+                IStatsManager service = getIStatsManagerLocked();
+                if (service == null) {
+                    Slog.d(TAG, "Failed to find statsd when removing configuration");
+                    return false;
+                }
+                return service.removeConfiguration(configKey);
+            } catch (RemoteException e) {
+                Slog.d(TAG, "Failed to connect to statsd when removing configuration");
+                return false;
+            }
+        }
+    }
+
+    /**
+     * Set the PendingIntent to be used when broadcasting subscriber information to the given
+     * subscriberId within the given config.
+     *
+     * <p>
+     * Suppose that the calling uid has added a config with key configKey, and that in this config
+     * it is specified that when a particular anomaly is detected, a broadcast should be sent to
+     * a BroadcastSubscriber with id subscriberId. This function links the given pendingIntent with
+     * that subscriberId (for that config), so that this pendingIntent is used to send the broadcast
+     * when the anomaly is detected.
+     *
+     * <p>
+     * When statsd sends the broadcast, the PendingIntent will used to send an intent with
+     * information of
+     *   {@link #EXTRA_STATS_CONFIG_UID},
+     *   {@link #EXTRA_STATS_CONFIG_KEY},
+     *   {@link #EXTRA_STATS_SUBSCRIPTION_ID},
+     *   {@link #EXTRA_STATS_SUBSCRIPTION_RULE_ID}, and
+     *   {@link #EXTRA_STATS_DIMENSIONS_VALUE}.
+     *
+     * <p>
+     * This function can only be called by the owner (uid) of the config. It must be called each
+     * time statsd starts. The config must have been added first (via addConfiguration()).
+     *
+     * @param configKey The integer naming the config to which this subscriber is attached.
+     * @param subscriberId ID of the subscriber, as used in the config.
+     * @param pendingIntent the PendingIntent to use when broadcasting info to the subscriber
+     *                      associated with the given subscriberId. May be null, in which case
+     *                      it undoes any previous setting of this subscriberId.
+     * @return true if successful
+     */
+    @RequiresPermission(Manifest.permission.DUMP)
+    public boolean setBroadcastSubscriber(long configKey,
+                                          long subscriberId,
+                                          PendingIntent pendingIntent) {
+        synchronized (this) {
+            try {
+                IStatsManager service = getIStatsManagerLocked();
+                if (service == null) {
+                    Slog.w(TAG, "Failed to find statsd when adding broadcast subscriber");
+                    return false;
+                }
+                if (pendingIntent != null) {
+                    // Extracts IIntentSender from the PendingIntent and turns it into an IBinder.
+                    IBinder intentSender = pendingIntent.getTarget().asBinder();
+                    return service.setBroadcastSubscriber(configKey, subscriberId, intentSender);
+                } else {
+                    return service.unsetBroadcastSubscriber(configKey, subscriberId);
+                }
+            } catch (RemoteException e) {
+                Slog.w(TAG, "Failed to connect to statsd when adding broadcast subscriber", e);
+                return false;
+            }
+        }
+    }
+
+    /**
+     * Clients can request data with a binder call. This getter is destructive and also clears
+     * the retrieved metrics from statsd memory.
+     *
+     * @param configKey Configuration key to retrieve data from.
+     * @return Serialized ConfigMetricsReportList proto. Returns null on failure.
+     */
+    @RequiresPermission(Manifest.permission.DUMP)
+    public byte[] getData(long configKey) {
+        synchronized (this) {
+            try {
+                IStatsManager service = getIStatsManagerLocked();
+                if (service == null) {
+                    Slog.d(TAG, "Failed to find statsd when getting data");
+                    return null;
+                }
+                return service.getData(configKey);
+            } catch (RemoteException e) {
+                Slog.d(TAG, "Failed to connecto statsd when getting data");
+                return null;
+            }
+        }
+    }
+
+    /**
+     * Clients can request metadata for statsd. Will contain stats across all configurations but not
+     * the actual metrics themselves (metrics must be collected via {@link #getData(String)}.
+     * This getter is not destructive and will not reset any metrics/counters.
+     *
+     * @return Serialized StatsdStatsReport proto. Returns null on failure.
+     */
+    @RequiresPermission(Manifest.permission.DUMP)
+    public byte[] getMetadata() {
+        synchronized (this) {
+            try {
+                IStatsManager service = getIStatsManagerLocked();
+                if (service == null) {
+                    Slog.d(TAG, "Failed to find statsd when getting metadata");
+                    return null;
+                }
+                return service.getMetadata();
+            } catch (RemoteException e) {
+                Slog.d(TAG, "Failed to connecto statsd when getting metadata");
+                return null;
+            }
+        }
+    }
+
+    private class StatsdDeathRecipient implements IBinder.DeathRecipient {
+        @Override
+        public void binderDied() {
+            synchronized (this) {
+                mService = null;
+            }
+        }
+    }
+
+    private IStatsManager getIStatsManagerLocked() throws RemoteException {
+        if (mService != null) {
+            return mService;
+        }
+        mService = IStatsManager.Stub.asInterface(ServiceManager.getService("stats"));
+        if (mService != null) {
+            mService.asBinder().linkToDeath(new StatsdDeathRecipient(), 0);
+        }
+        return mService;
+    }
+}
diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
index fb8d101..4310434 100644
--- a/core/java/android/app/SystemServiceRegistry.java
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -141,7 +141,6 @@
 import android.telephony.euicc.EuiccCardManager;
 import android.telephony.euicc.EuiccManager;
 import android.util.Log;
-import android.util.StatsManager;
 import android.view.ContextThemeWrapper;
 import android.view.LayoutInflater;
 import android.view.WindowManager;
diff --git a/core/java/android/app/TaskStackBuilder.java b/core/java/android/app/TaskStackBuilder.java
index bab993f..ab59747 100644
--- a/core/java/android/app/TaskStackBuilder.java
+++ b/core/java/android/app/TaskStackBuilder.java
@@ -213,13 +213,13 @@
      * Start the task stack constructed by this builder.
      * @hide
      */
-    public void startActivities(Bundle options, UserHandle userHandle) {
+    public int startActivities(Bundle options, UserHandle userHandle) {
         if (mIntents.isEmpty()) {
             throw new IllegalStateException(
                     "No intents added to TaskStackBuilder; cannot startActivities");
         }
 
-        mSourceContext.startActivitiesAsUser(getIntents(), options, userHandle);
+        return mSourceContext.startActivitiesAsUser(getIntents(), options, userHandle);
     }
 
     /**
diff --git a/core/java/android/app/admin/DeviceAdminReceiver.java b/core/java/android/app/admin/DeviceAdminReceiver.java
index ffb3aff..28e845a 100644
--- a/core/java/android/app/admin/DeviceAdminReceiver.java
+++ b/core/java/android/app/admin/DeviceAdminReceiver.java
@@ -483,19 +483,28 @@
             "android.app.action.TRANSFER_OWNERSHIP_COMPLETE";
 
     /**
+     * Broadcast action: notify the device owner that the ownership of one of its affiliated
+     * profiles is transferred.
+     *
+     * @hide
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE =
+            "android.app.action.AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE";
+
+    /**
      * A {@link android.os.Parcelable} extra of type {@link android.os.PersistableBundle} that
      * allows a mobile device management application to pass data to the management application
      * instance after owner transfer.
      *
-     * <p>
-     * If the transfer is successful, the new device owner receives the data in
+     * <p>If the transfer is successful, the new owner receives the data in
      * {@link DeviceAdminReceiver#onTransferOwnershipComplete(Context, PersistableBundle)}.
      * The bundle is not changed during the ownership transfer.
      *
      * @see DevicePolicyManager#transferOwnership(ComponentName, ComponentName, PersistableBundle)
      */
-    public static final String EXTRA_TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE =
-            "android.app.extra.TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE";
+    public static final String EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE =
+            "android.app.extra.TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE";
 
     /**
      * Name under which a device administration component indicates whether it supports transfer of
@@ -994,6 +1003,26 @@
     }
 
     /**
+     * Called on the device owner when the ownership of one of its affiliated profiles is
+     * transferred.
+     *
+     * <p>This can be used when transferring both device and profile ownership when using
+     * work profile on a fully managed device. The process would look like this:
+     * <ol>
+     * <li>Transfer profile ownership</li>
+     * <li>The device owner gets notified with this callback</li>
+     * <li>Transfer device ownership</li>
+     * <li>Both profile and device ownerships have been transferred</li>
+     * </ol>
+     *
+     * @param context the running context as per {@link #onReceive}
+     * @param user the {@link UserHandle} of the affiliated user
+     * @see DevicePolicyManager#transferOwnership(ComponentName, ComponentName, PersistableBundle)
+     */
+    public void onTransferAffiliatedProfileOwnershipComplete(Context context, UserHandle user) {
+    }
+
+    /**
      * Intercept standard device administrator broadcasts.  Implementations
      * should not override this method; it is better to implement the
      * convenience callbacks for each action.
@@ -1063,8 +1092,11 @@
             onUserSwitched(context, intent, intent.getParcelableExtra(Intent.EXTRA_USER));
         } else if (ACTION_TRANSFER_OWNERSHIP_COMPLETE.equals(action)) {
             PersistableBundle bundle =
-                    intent.getParcelableExtra(EXTRA_TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE);
+                    intent.getParcelableExtra(EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE);
             onTransferOwnershipComplete(context, bundle);
+        } else if (ACTION_AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE.equals(action)) {
+            onTransferAffiliatedProfileOwnershipComplete(context,
+                    intent.getParcelableExtra(Intent.EXTRA_USER));
         }
     }
 }
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index 95e7fe0..8f76032 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -9144,9 +9144,13 @@
      *     <li>A profile owner can only be transferred to a new profile owner</li>
      * </ul>
      *
-     * <p>Use the {@code bundle} parameter to pass data to the new administrator. The parameters
+     * <p>Use the {@code bundle} parameter to pass data to the new administrator. The data
      * will be received in the
-     * {@link DeviceAdminReceiver#onTransferOwnershipComplete(Context, PersistableBundle)} callback.
+     * {@link DeviceAdminReceiver#onTransferOwnershipComplete(Context, PersistableBundle)}
+     * callback of the new administrator.
+     *
+     * <p>The transfer has failed if the original administrator is still the corresponding owner
+     * after calling this method.
      *
      * <p>The incoming target administrator must have the
      * {@link DeviceAdminReceiver#SUPPORT_TRANSFER_OWNERSHIP_META_DATA} <code>meta-data</code> tag
@@ -9157,11 +9161,11 @@
      * @param target which {@link DeviceAdminReceiver} we want the new administrator to be
      * @param bundle data to be sent to the new administrator
      * @throws SecurityException if {@code admin} is not a device owner nor a profile owner
-     * @throws IllegalArgumentException if {@code admin} or {@code target} is {@code null},
-     * both are components in the same package or {@code target} is not an active admin
+     * @throws IllegalArgumentException if {@code admin} or {@code target} is {@code null}, they
+     * are components in the same package or {@code target} is not an active admin
      */
     public void transferOwnership(@NonNull ComponentName admin, @NonNull ComponentName target,
-            PersistableBundle bundle) {
+            @Nullable PersistableBundle bundle) {
         throwIfParentInstance("transferOwnership");
         try {
             mService.transferOwnership(admin, target, bundle);
@@ -9286,22 +9290,6 @@
     }
 
     /**
-     * Returns error message to be displayed when printing is disabled.
-     *
-     * Used only by PrintService.
-     * @return Localized error message.
-     * @hide
-     */
-    @SystemApi
-    public CharSequence getPrintingDisabledReason() {
-        try {
-            return mService.getPrintingDisabledReason();
-        } catch (RemoteException re) {
-            throw re.rethrowFromSystemServer();
-        }
-    }
-
-    /**
      * Called by device owner to add an override APN.
      *
      * @param admin which {@link DeviceAdminReceiver} this request is associated with
@@ -9434,4 +9422,24 @@
         }
         return false;
     }
+
+    /**
+     * Returns the data passed from the current administrator to the new administrator during an
+     * ownership transfer. This is the same {@code bundle} passed in
+     * {@link #transferOwnership(ComponentName, ComponentName, PersistableBundle)}.
+     *
+     * <p>Returns <code>null</code> if no ownership transfer was started for the calling user.
+     *
+     * @see #transferOwnership
+     * @see DeviceAdminReceiver#onTransferOwnershipComplete(Context, PersistableBundle)
+     */
+    @Nullable
+    public PersistableBundle getTransferOwnershipBundle() {
+        throwIfParentInstance("getTransferOwnershipBundle");
+        try {
+            return mService.getTransferOwnershipBundle();
+        } catch (RemoteException re) {
+            throw re.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/core/java/android/app/admin/DevicePolicyManagerInternal.java b/core/java/android/app/admin/DevicePolicyManagerInternal.java
index 531bef0..ebaf464 100644
--- a/core/java/android/app/admin/DevicePolicyManagerInternal.java
+++ b/core/java/android/app/admin/DevicePolicyManagerInternal.java
@@ -132,4 +132,13 @@
      * @param userId The user in question
      */
     public abstract boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId);
+
+    /**
+     * Return text of error message if printing is disabled.
+     * Called by Print Service when printing is disabled by PO or DO when printing is attempted.
+     *
+     * @param userId The user in question
+     * @return localized error message
+     */
+    public abstract CharSequence getPrintingDisabledReasonForUser(@UserIdInt int userId);
 }
diff --git a/core/java/android/app/admin/IDevicePolicyManager.aidl b/core/java/android/app/admin/IDevicePolicyManager.aidl
index a5ca4cf..daee6b4 100644
--- a/core/java/android/app/admin/IDevicePolicyManager.aidl
+++ b/core/java/android/app/admin/IDevicePolicyManager.aidl
@@ -391,7 +391,9 @@
     boolean isLogoutEnabled();
 
     List<String> getDisallowedSystemApps(in ComponentName admin, int userId, String provisioningAction);
+
     void transferOwnership(in ComponentName admin, in ComponentName target, in PersistableBundle bundle);
+    PersistableBundle getTransferOwnershipBundle();
 
     void setStartUserSessionMessage(in ComponentName admin, in CharSequence startUserSessionMessage);
     void setEndUserSessionMessage(in ComponentName admin, in CharSequence endUserSessionMessage);
@@ -400,7 +402,6 @@
 
     void setPrintingEnabled(in ComponentName admin, boolean enabled);
     boolean isPrintingEnabled();
-    CharSequence getPrintingDisabledReason();
 
     List<String> setMeteredDataDisabled(in ComponentName admin, in List<String> packageNames);
     List<String> getMeteredDataDisabled(in ComponentName admin);
diff --git a/core/java/android/app/backup/BackupAgent.java b/core/java/android/app/backup/BackupAgent.java
index 861cb9a..72eb494 100644
--- a/core/java/android/app/backup/BackupAgent.java
+++ b/core/java/android/app/backup/BackupAgent.java
@@ -143,6 +143,26 @@
     /** @hide */
     public static final int TYPE_SYMLINK = 3;
 
+    /**
+     * Flag for {@link BackupDataOutput#getTransportFlags()} and
+     * {@link FullBackupDataOutput#getTransportFlags()} only.
+     *
+     * <p>The transport has client-side encryption enabled. i.e., the user's backup has been
+     * encrypted with a key known only to the device, and not to the remote storage solution. Even
+     * if an attacker had root access to the remote storage provider they should not be able to
+     * decrypt the user's backup data.
+     */
+    public static final int FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED = 1;
+
+    /**
+     * Flag for {@link BackupDataOutput#getTransportFlags()} and
+     * {@link FullBackupDataOutput#getTransportFlags()} only.
+     *
+     * <p>The transport is for a device-to-device transfer. There is no third party or intermediate
+     * storage. The user's backup data is sent directly to another device over e.g., USB or WiFi.
+     */
+    public static final int FLAG_DEVICE_TO_DEVICE_TRANSFER = 2;
+
     Handler mHandler = null;
 
     Handler getHandler() {
@@ -920,12 +940,14 @@
         public void doBackup(ParcelFileDescriptor oldState,
                 ParcelFileDescriptor data,
                 ParcelFileDescriptor newState,
-                long quotaBytes, int token, IBackupManager callbackBinder) throws RemoteException {
+                long quotaBytes, int token, IBackupManager callbackBinder, int transportFlags)
+                throws RemoteException {
             // Ensure that we're running with the app's normal permission level
             long ident = Binder.clearCallingIdentity();
 
             if (DEBUG) Log.v(TAG, "doBackup() invoked");
-            BackupDataOutput output = new BackupDataOutput(data.getFileDescriptor(), quotaBytes);
+            BackupDataOutput output = new BackupDataOutput(
+                    data.getFileDescriptor(), quotaBytes, transportFlags);
 
             try {
                 BackupAgent.this.onBackup(oldState, output, newState);
@@ -999,7 +1021,7 @@
 
         @Override
         public void doFullBackup(ParcelFileDescriptor data,
-                long quotaBytes, int token, IBackupManager callbackBinder) {
+                long quotaBytes, int token, IBackupManager callbackBinder, int transportFlags) {
             // Ensure that we're running with the app's normal permission level
             long ident = Binder.clearCallingIdentity();
 
@@ -1010,7 +1032,8 @@
             waitForSharedPrefs();
 
             try {
-                BackupAgent.this.onFullBackup(new FullBackupDataOutput(data, quotaBytes));
+                BackupAgent.this.onFullBackup(new FullBackupDataOutput(
+                        data, quotaBytes, transportFlags));
             } catch (IOException ex) {
                 Log.d(TAG, "onFullBackup (" + BackupAgent.this.getClass().getName() + ") threw", ex);
                 throw new RuntimeException(ex);
@@ -1044,10 +1067,12 @@
             }
         }
 
-        public void doMeasureFullBackup(long quotaBytes, int token, IBackupManager callbackBinder) {
+        public void doMeasureFullBackup(long quotaBytes, int token, IBackupManager callbackBinder,
+                int transportFlags) {
             // Ensure that we're running with the app's normal permission level
             final long ident = Binder.clearCallingIdentity();
-            FullBackupDataOutput measureOutput = new FullBackupDataOutput(quotaBytes);
+            FullBackupDataOutput measureOutput =
+                    new FullBackupDataOutput(quotaBytes, transportFlags);
 
             waitForSharedPrefs();
             try {
diff --git a/core/java/android/app/backup/BackupDataOutput.java b/core/java/android/app/backup/BackupDataOutput.java
index c7586a2..5a66f34 100644
--- a/core/java/android/app/backup/BackupDataOutput.java
+++ b/core/java/android/app/backup/BackupDataOutput.java
@@ -18,6 +18,7 @@
 
 import android.annotation.SystemApi;
 import android.os.ParcelFileDescriptor;
+
 import java.io.FileDescriptor;
 import java.io.IOException;
 
@@ -62,7 +63,10 @@
  * @see BackupAgent
  */
 public class BackupDataOutput {
-    final long mQuota;
+
+    private final long mQuota;
+    private final int mTransportFlags;
+
     long mBackupWriter;
 
     /**
@@ -71,14 +75,20 @@
      * @hide */
     @SystemApi
     public BackupDataOutput(FileDescriptor fd) {
-        this(fd, -1);
+        this(fd, /*quota=*/ -1, /*transportFlags=*/ 0);
     }
 
     /** @hide */
     @SystemApi
     public BackupDataOutput(FileDescriptor fd, long quota) {
+        this(fd, quota, /*transportFlags=*/ 0);
+    }
+
+    /** @hide */
+    public BackupDataOutput(FileDescriptor fd, long quota, int transportFlags) {
         if (fd == null) throw new NullPointerException();
         mQuota = quota;
+        mTransportFlags = transportFlags;
         mBackupWriter = ctor(fd);
         if (mBackupWriter == 0) {
             throw new RuntimeException("Native initialization failed with fd=" + fd);
@@ -96,6 +106,16 @@
     }
 
     /**
+     * Returns flags with additional information about the backup transport. For supported flags see
+     * {@link android.app.backup.BackupAgent}
+     *
+     * @see FullBackupDataOutput#getTransportFlags()
+     */
+    public int getTransportFlags() {
+        return mTransportFlags;
+    }
+
+    /**
      * Mark the beginning of one record in the backup data stream. This must be called before
      * {@link #writeEntityData}.
      * @param key A string key that uniquely identifies the data record within the application.
diff --git a/core/java/android/app/backup/BackupManager.java b/core/java/android/app/backup/BackupManager.java
index 12f4483..6ec0969 100644
--- a/core/java/android/app/backup/BackupManager.java
+++ b/core/java/android/app/backup/BackupManager.java
@@ -252,6 +252,8 @@
     }
 
     /**
+     * @deprecated Since Android P app can no longer request restoring of its backup.
+     *
      * Restore the calling application from backup.  The data will be restored from the
      * current backup dataset if the application has stored data there, or from
      * the dataset used during the last full device setup operation if the current
@@ -269,6 +271,7 @@
      *
      * @return Zero on success; nonzero on error.
      */
+    @Deprecated
     public int requestRestore(RestoreObserver observer) {
         return requestRestore(observer, null);
     }
@@ -276,6 +279,8 @@
     // system APIs start here
 
     /**
+     * @deprecated Since Android P app can no longer request restoring of its backup.
+     *
      * Restore the calling application from backup.  The data will be restored from the
      * current backup dataset if the application has stored data there, or from
      * the dataset used during the last full device setup operation if the current
@@ -298,28 +303,12 @@
      *
      * @hide
      */
+    @Deprecated
     @SystemApi
     public int requestRestore(RestoreObserver observer, BackupManagerMonitor monitor) {
-        int result = -1;
-        checkServiceBinder();
-        if (sService != null) {
-            RestoreSession session = null;
-            try {
-                IRestoreSession binder = sService.beginRestoreSession(mContext.getPackageName(),
-                    null);
-                if (binder != null) {
-                    session = new RestoreSession(mContext, binder);
-                    result = session.restorePackage(mContext.getPackageName(), observer, monitor);
-                }
-            } catch (RemoteException e) {
-                Log.e(TAG, "restoreSelf() unable to contact service");
-            } finally {
-                if (session != null) {
-                    session.endRestoreSession();
-                }
-            }
-        }
-        return result;
+        Log.w(TAG, "requestRestore(): Since Android P app can no longer request restoring"
+                + " of its backup.");
+        return -1;
     }
 
     /**
diff --git a/core/java/android/app/backup/BackupManagerMonitor.java b/core/java/android/app/backup/BackupManagerMonitor.java
index a91aded..07e7688a 100644
--- a/core/java/android/app/backup/BackupManagerMonitor.java
+++ b/core/java/android/app/backup/BackupManagerMonitor.java
@@ -174,7 +174,6 @@
 
     /**
      * The transport returned {@link BackupTransport#TRANSPORT_NON_INCREMENTAL_BACKUP_REQUIRED}.
-     * @hide
      */
     public static final int LOG_EVENT_ID_TRANSPORT_NON_INCREMENTAL_BACKUP_REQUIRED = 51;
 
diff --git a/core/java/android/app/backup/BackupTransport.java b/core/java/android/app/backup/BackupTransport.java
index 266f58d..f456395 100644
--- a/core/java/android/app/backup/BackupTransport.java
+++ b/core/java/android/app/backup/BackupTransport.java
@@ -60,8 +60,6 @@
      *
      * <p>This is only valid when backup manager called {@link
      * #performBackup(PackageInfo, ParcelFileDescriptor, int)} with {@link #FLAG_INCREMENTAL}.
-     *
-     * @hide
      */
     public static final int TRANSPORT_NON_INCREMENTAL_BACKUP_REQUIRED = -1006;
 
@@ -73,7 +71,7 @@
      * For key value backup, indicates that the backup data is a diff from a previous backup. The
      * transport must apply this diff to an existing backup to build the new backup set.
      *
-     * @hide
+     * @see #performBackup(PackageInfo, ParcelFileDescriptor, int)
      */
     public static final int FLAG_INCREMENTAL = 1 << 1;
 
@@ -81,7 +79,7 @@
      * For key value backup, indicates that the backup data is a complete set, not a diff from a
      * previous backup. The transport should clear any previous backup when storing this backup.
      *
-     * @hide
+     * @see #performBackup(PackageInfo, ParcelFileDescriptor, int)
      */
     public static final int FLAG_NON_INCREMENTAL = 1 << 2;
 
@@ -609,6 +607,15 @@
     }
 
     /**
+     * Returns flags with additional information about the transport, which is accessible to the
+     * {@link android.app.backup.BackupAgent}. This allows the agent to decide what to do based on
+     * properties of the transport.
+     */
+    public int getTransportFlags() {
+        return 0;
+    }
+
+    /**
      * Bridge between the actual IBackupTransport implementation and the stable API.  If the
      * binder interface needs to change, we use this layer to translate so that we can
      * (if appropriate) decouple those framework-side changes from the BackupTransport
@@ -740,6 +747,11 @@
         }
 
         @Override
+        public int getTransportFlags() {
+            return BackupTransport.this.getTransportFlags();
+        }
+
+        @Override
         public int getNextFullRestoreDataChunk(ParcelFileDescriptor socket) {
             return BackupTransport.this.getNextFullRestoreDataChunk(socket);
         }
diff --git a/core/java/android/app/backup/FullBackupDataOutput.java b/core/java/android/app/backup/FullBackupDataOutput.java
index 5deedd0..18f4283 100644
--- a/core/java/android/app/backup/FullBackupDataOutput.java
+++ b/core/java/android/app/backup/FullBackupDataOutput.java
@@ -11,6 +11,7 @@
     // Currently a name-scoping shim around BackupDataOutput
     private final BackupDataOutput mData;
     private final long mQuota;
+    private final int mTransportFlags;
     private long mSize;
 
     /**
@@ -23,22 +24,49 @@
         return mQuota;
     }
 
+    /**
+     * Returns flags with additional information about the backup transport. For supported flags see
+     * {@link android.app.backup.BackupAgent}
+     *
+     * @see BackupDataOutput#getTransportFlags()
+     */
+    public int getTransportFlags() {
+        return mTransportFlags;
+    }
+
     /** @hide - used only in measure operation */
     public FullBackupDataOutput(long quota) {
         mData = null;
         mQuota = quota;
         mSize = 0;
+        mTransportFlags = 0;
+    }
+
+    /** @hide - used only in measure operation */
+    public FullBackupDataOutput(long quota, int transportFlags) {
+        mData = null;
+        mQuota = quota;
+        mSize = 0;
+        mTransportFlags = transportFlags;
     }
 
     /** @hide */
     public FullBackupDataOutput(ParcelFileDescriptor fd, long quota) {
-        mData = new BackupDataOutput(fd.getFileDescriptor(), quota);
+        mData = new BackupDataOutput(fd.getFileDescriptor(), quota, 0);
         mQuota = quota;
+        mTransportFlags = 0;
+    }
+
+    /** @hide */
+    public FullBackupDataOutput(ParcelFileDescriptor fd, long quota, int transportFlags) {
+        mData = new BackupDataOutput(fd.getFileDescriptor(), quota, transportFlags);
+        mQuota = quota;
+        mTransportFlags = transportFlags;
     }
 
     /** @hide - used only internally to the backup manager service's stream construction */
     public FullBackupDataOutput(ParcelFileDescriptor fd) {
-        this(fd, -1);
+        this(fd, /*quota=*/ -1, /*transportFlags=*/ 0);
     }
 
     /** @hide */
diff --git a/core/java/android/bluetooth/BluetoothA2dp.java b/core/java/android/bluetooth/BluetoothA2dp.java
index 35a21a4..b255a43 100644
--- a/core/java/android/bluetooth/BluetoothA2dp.java
+++ b/core/java/android/bluetooth/BluetoothA2dp.java
@@ -300,11 +300,7 @@
     }
 
     /**
-     * Initiate connection to a profile of the remote bluetooth device.
-     *
-     * <p> Currently, the system supports only 1 connection to the
-     * A2DP profile. The API will automatically disconnect connected
-     * devices before connecting.
+     * Initiate connection to a profile of the remote Bluetooth device.
      *
      * <p> This API returns false in scenarios like the profile on the
      * device is already connected or Bluetooth is not turned on.
@@ -699,15 +695,17 @@
     /**
      * Gets the current codec status (configuration and capability).
      *
+     * @param device the remote Bluetooth device. If null, use the current
+     * active A2DP Bluetooth device.
      * @return the current codec status
      * @hide
      */
-    public BluetoothCodecStatus getCodecStatus() {
-        if (DBG) Log.d(TAG, "getCodecStatus");
+    public BluetoothCodecStatus getCodecStatus(BluetoothDevice device) {
+        if (DBG) Log.d(TAG, "getCodecStatus(" + device + ")");
         try {
             mServiceLock.readLock().lock();
             if (mService != null && isEnabled()) {
-                return mService.getCodecStatus();
+                return mService.getCodecStatus(device);
             }
             if (mService == null) {
                 Log.w(TAG, "Proxy not attached to service");
@@ -724,15 +722,18 @@
     /**
      * Sets the codec configuration preference.
      *
+     * @param device the remote Bluetooth device. If null, use the current
+     * active A2DP Bluetooth device.
      * @param codecConfig the codec configuration preference
      * @hide
      */
-    public void setCodecConfigPreference(BluetoothCodecConfig codecConfig) {
-        if (DBG) Log.d(TAG, "setCodecConfigPreference");
+    public void setCodecConfigPreference(BluetoothDevice device,
+                                         BluetoothCodecConfig codecConfig) {
+        if (DBG) Log.d(TAG, "setCodecConfigPreference(" + device + ")");
         try {
             mServiceLock.readLock().lock();
             if (mService != null && isEnabled()) {
-                mService.setCodecConfigPreference(codecConfig);
+                mService.setCodecConfigPreference(device, codecConfig);
             }
             if (mService == null) Log.w(TAG, "Proxy not attached to service");
             return;
@@ -747,36 +748,42 @@
     /**
      * Enables the optional codecs.
      *
+     * @param device the remote Bluetooth device. If null, use the currect
+     * active A2DP Bluetooth device.
      * @hide
      */
-    public void enableOptionalCodecs() {
-        if (DBG) Log.d(TAG, "enableOptionalCodecs");
-        enableDisableOptionalCodecs(true);
+    public void enableOptionalCodecs(BluetoothDevice device) {
+        if (DBG) Log.d(TAG, "enableOptionalCodecs(" + device + ")");
+        enableDisableOptionalCodecs(device, true);
     }
 
     /**
      * Disables the optional codecs.
      *
+     * @param device the remote Bluetooth device. If null, use the currect
+     * active A2DP Bluetooth device.
      * @hide
      */
-    public void disableOptionalCodecs() {
-        if (DBG) Log.d(TAG, "disableOptionalCodecs");
-        enableDisableOptionalCodecs(false);
+    public void disableOptionalCodecs(BluetoothDevice device) {
+        if (DBG) Log.d(TAG, "disableOptionalCodecs(" + device + ")");
+        enableDisableOptionalCodecs(device, false);
     }
 
     /**
      * Enables or disables the optional codecs.
      *
+     * @param device the remote Bluetooth device. If null, use the currect
+     * active A2DP Bluetooth device.
      * @param enable if true, enable the optional codecs, other disable them
      */
-    private void enableDisableOptionalCodecs(boolean enable) {
+    private void enableDisableOptionalCodecs(BluetoothDevice device, boolean enable) {
         try {
             mServiceLock.readLock().lock();
             if (mService != null && isEnabled()) {
                 if (enable) {
-                    mService.enableOptionalCodecs();
+                    mService.enableOptionalCodecs(device);
                 } else {
-                    mService.disableOptionalCodecs();
+                    mService.disableOptionalCodecs(device);
                 }
             }
             if (mService == null) Log.w(TAG, "Proxy not attached to service");
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index f69aab01..5177e10 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -32,6 +32,7 @@
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.UserIdInt;
+import android.app.ActivityManager;
 import android.app.IApplicationThread;
 import android.app.IServiceConnection;
 import android.app.VrManager;
@@ -1834,13 +1835,17 @@
      * See {@link android.content.Context#startActivity(Intent, Bundle)}
      * Context.startActivity(Intent, Bundle)} for more details.
      *
+     * @return The corresponding flag {@link ActivityManager#START_CANCELED},
+     *         {@link ActivityManager#START_SUCCESS} etc. indicating whether the launch was
+     *         successful.
+     *
      * @throws ActivityNotFoundException &nbsp;
      *
      * @see #startActivities(Intent[])
      * @see PackageManager#resolveActivity
      */
     @RequiresPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL)
-    public void startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
+    public int startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
         throw new RuntimeException("Not implemented. Must override in a subclass.");
     }
 
@@ -4121,7 +4126,7 @@
     public static final String STATS_COMPANION_SERVICE = "statscompanion";
 
     /**
-     * Use with {@link #getSystemService(String)} to retrieve an {@link android.stats.StatsManager}.
+     * Use with {@link #getSystemService(String)} to retrieve an {@link android.app.StatsManager}.
      * @hide
      */
     @SystemApi
diff --git a/core/java/android/content/ContextWrapper.java b/core/java/android/content/ContextWrapper.java
index 67de4fe..8c1293e 100644
--- a/core/java/android/content/ContextWrapper.java
+++ b/core/java/android/content/ContextWrapper.java
@@ -418,8 +418,8 @@
 
     /** @hide */
     @Override
-    public void startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
-        mBase.startActivitiesAsUser(intents, options, userHandle);
+    public int startActivitiesAsUser(Intent[] intents, Bundle options, UserHandle userHandle) {
+        return mBase.startActivitiesAsUser(intents, options, userHandle);
     }
 
     @Override
diff --git a/core/java/android/content/pm/ApplicationInfo.java b/core/java/android/content/pm/ApplicationInfo.java
index 7bdf72f..746a090 100644
--- a/core/java/android/content/pm/ApplicationInfo.java
+++ b/core/java/android/content/pm/ApplicationInfo.java
@@ -1591,6 +1591,13 @@
     /**
      * @hide
      */
+    public boolean isAllowedToUseHiddenApi() {
+        return isSystemApp();
+    }
+
+    /**
+     * @hide
+     */
     @Override
     public Drawable loadDefaultIcon(PackageManager pm) {
         if ((flags & FLAG_EXTERNAL_STORAGE) != 0
diff --git a/core/java/android/content/pm/PackageInfo.java b/core/java/android/content/pm/PackageInfo.java
index 13ec4fd..09a46b8 100644
--- a/core/java/android/content/pm/PackageInfo.java
+++ b/core/java/android/content/pm/PackageInfo.java
@@ -16,14 +16,10 @@
 
 package android.content.pm;
 
-import android.annotation.IntDef;
 import android.annotation.Nullable;
 import android.os.Parcel;
 import android.os.Parcelable;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
 /**
  * Overall information about the contents of a package.  This corresponds
  * to all of the information collected from AndroidManifest.xml.
@@ -370,28 +366,9 @@
     public int overlayPriority;
 
     /**
-     * Flag for use with {@link #mOverlayFlags}. Marks the overlay as static, meaning it cannot
-     * be enabled/disabled at runtime.
+     * Whether the overlay is static, meaning it cannot be enabled/disabled at runtime.
      */
-    static final int FLAG_OVERLAY_STATIC = 1 << 1;
-
-    /**
-     * Flag for use with {@link #mOverlayFlags}. Marks the overlay as trusted (not 3rd party).
-     */
-    static final int FLAG_OVERLAY_TRUSTED = 1 << 2;
-
-    @IntDef(flag = true, prefix = "FLAG_OVERLAY_", value = {
-            FLAG_OVERLAY_STATIC,
-            FLAG_OVERLAY_TRUSTED
-    })
-    @Retention(RetentionPolicy.SOURCE)
-    @interface OverlayFlags {}
-
-    /**
-     * Modifiers that affect the state of this overlay. See {@link #FLAG_OVERLAY_STATIC},
-     * {@link #FLAG_OVERLAY_TRUSTED}.
-     */
-    @OverlayFlags int mOverlayFlags;
+    boolean mOverlayIsStatic;
 
     /**
      * The user-visible SDK version (ex. 26) of the framework against which the application claims
@@ -424,7 +401,7 @@
      * @hide
      */
     public boolean isOverlayPackage() {
-        return overlayTarget != null && (mOverlayFlags & FLAG_OVERLAY_TRUSTED) != 0;
+        return overlayTarget != null;
     }
 
     /**
@@ -433,7 +410,7 @@
      * @hide
      */
     public boolean isStaticOverlayPackage() {
-        return overlayTarget != null && (mOverlayFlags & FLAG_OVERLAY_STATIC) != 0;
+        return overlayTarget != null && mOverlayIsStatic;
     }
 
     @Override
@@ -488,7 +465,7 @@
         dest.writeString(requiredAccountType);
         dest.writeString(overlayTarget);
         dest.writeInt(overlayPriority);
-        dest.writeInt(mOverlayFlags);
+        dest.writeBoolean(mOverlayIsStatic);
         dest.writeInt(compileSdkVersion);
         dest.writeString(compileSdkVersionCodename);
     }
@@ -543,7 +520,7 @@
         requiredAccountType = source.readString();
         overlayTarget = source.readString();
         overlayPriority = source.readInt();
-        mOverlayFlags = source.readInt();
+        mOverlayIsStatic = source.readBoolean();
         compileSdkVersion = source.readInt();
         compileSdkVersionCodename = source.readString();
 
diff --git a/core/java/android/content/pm/PackageManager.java b/core/java/android/content/pm/PackageManager.java
index 67c9584..5a894c7 100644
--- a/core/java/android/content/pm/PackageManager.java
+++ b/core/java/android/content/pm/PackageManager.java
@@ -1766,6 +1766,16 @@
             "android.hardware.camera.capability.raw";
 
     /**
+     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}: At least one
+     * of the cameras on the device supports the
+     * {@link android.hardware.camera2.CameraMetadata#REQUEST_AVAILABLE_CAPABILITIES_MOTION_TRACKING
+     * MOTION_TRACKING} capability level.
+     */
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_CAMERA_AR =
+            "android.hardware.camera.ar";
+
+    /**
      * Feature for {@link #getSystemAvailableFeatures} and
      * {@link #hasSystemFeature}: The device is capable of communicating with
      * consumer IR devices.
@@ -2594,6 +2604,14 @@
     public static final String FEATURE_VR_HEADTRACKING = "android.hardware.vr.headtracking";
 
     /**
+     * Feature for {@link #getSystemAvailableFeatures} and {@link #hasSystemFeature}:
+     * The device has a StrongBox hardware-backed Keystore.
+     */
+    @SdkConstant(SdkConstantType.FEATURE)
+    public static final String FEATURE_STRONGBOX_KEYSTORE =
+            "android.hardware.strongbox_keystore";
+
+    /**
      * Action to external storage service to clean out removed apps.
      * @hide
      */
@@ -4740,7 +4758,7 @@
 
             PackageParser.Package pkg = parser.parseMonolithicPackage(apkFile, 0);
             if ((flags & GET_SIGNATURES) != 0) {
-                PackageParser.collectCertificates(pkg, 0);
+                PackageParser.collectCertificates(pkg, false /* skipVerify */);
             }
             PackageUserState state = new PackageUserState();
             return PackageParser.generatePackageInfo(pkg, null, flags, 0, 0, null, state);
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 5b5ccf5..3bb812b 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -54,6 +54,7 @@
 import android.content.pm.split.DefaultSplitAssetLoader;
 import android.content.pm.split.SplitAssetDependencyLoader;
 import android.content.pm.split.SplitAssetLoader;
+import android.content.res.ApkAssets;
 import android.content.res.AssetManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
@@ -679,15 +680,7 @@
         pi.requiredAccountType = p.mRequiredAccountType;
         pi.overlayTarget = p.mOverlayTarget;
         pi.overlayPriority = p.mOverlayPriority;
-
-        if (p.mIsStaticOverlay) {
-            pi.mOverlayFlags |= PackageInfo.FLAG_OVERLAY_STATIC;
-        }
-
-        if (p.mTrustedOverlay) {
-            pi.mOverlayFlags |= PackageInfo.FLAG_OVERLAY_TRUSTED;
-        }
-
+        pi.mOverlayIsStatic = p.mOverlayIsStatic;
         pi.compileSdkVersion = p.mCompileSdkVersion;
         pi.compileSdkVersionCodename = p.mCompileSdkVersionCodename;
         pi.firstInstallTime = firstInstallTime;
@@ -1504,9 +1497,9 @@
      * populating {@link Package#mSigningDetails}. Also asserts that all APK
      * contents are signed correctly and consistently.
      */
-    public static void collectCertificates(Package pkg, @ParseFlags int parseFlags)
+    public static void collectCertificates(Package pkg, boolean skipVerify)
             throws PackageParserException {
-        collectCertificatesInternal(pkg, parseFlags);
+        collectCertificatesInternal(pkg, skipVerify);
         final int childCount = (pkg.childPackages != null) ? pkg.childPackages.size() : 0;
         for (int i = 0; i < childCount; i++) {
             Package childPkg = pkg.childPackages.get(i);
@@ -1514,17 +1507,17 @@
         }
     }
 
-    private static void collectCertificatesInternal(Package pkg, @ParseFlags int parseFlags)
+    private static void collectCertificatesInternal(Package pkg, boolean skipVerify)
             throws PackageParserException {
         pkg.mSigningDetails = SigningDetails.UNKNOWN;
 
         Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "collectCertificates");
         try {
-            collectCertificates(pkg, new File(pkg.baseCodePath), parseFlags);
+            collectCertificates(pkg, new File(pkg.baseCodePath), skipVerify);
 
             if (!ArrayUtils.isEmpty(pkg.splitCodePaths)) {
                 for (int i = 0; i < pkg.splitCodePaths.length; i++) {
-                    collectCertificates(pkg, new File(pkg.splitCodePaths[i]), parseFlags);
+                    collectCertificates(pkg, new File(pkg.splitCodePaths[i]), skipVerify);
                 }
             }
         } finally {
@@ -1532,7 +1525,7 @@
         }
     }
 
-    private static void collectCertificates(Package pkg, File apkFile, @ParseFlags int parseFlags)
+    private static void collectCertificates(Package pkg, File apkFile, boolean skipVerify)
             throws PackageParserException {
         final String apkPath = apkFile.getAbsolutePath();
 
@@ -1542,7 +1535,7 @@
             minSignatureScheme = SigningDetails.SignatureSchemeVersion.SIGNING_BLOCK_V2;
         }
         SigningDetails verified;
-        if ((parseFlags & PARSE_IS_SYSTEM_DIR) != 0) {
+        if (skipVerify) {
             // systemDir APKs are already trusted, save time by not verifying
             verified = ApkSignatureVerifier.plsCertsNoVerifyOnlyCerts(
                         apkPath, minSignatureScheme);
@@ -1602,29 +1595,28 @@
             int flags) throws PackageParserException {
         final String apkPath = fd != null ? debugPathName : apkFile.getAbsolutePath();
 
-        AssetManager assets = null;
+        ApkAssets apkAssets = null;
         XmlResourceParser parser = null;
         try {
-            assets = newConfiguredAssetManager();
-            int cookie = fd != null
-                    ? assets.addAssetFd(fd, debugPathName) : assets.addAssetPath(apkPath);
-            if (cookie == 0) {
+            try {
+                apkAssets = fd != null
+                        ? ApkAssets.loadFromFd(fd, debugPathName, false, false)
+                        : ApkAssets.loadFromPath(apkPath);
+            } catch (IOException e) {
                 throw new PackageParserException(INSTALL_PARSE_FAILED_NOT_APK,
                         "Failed to parse " + apkPath);
             }
 
-            final DisplayMetrics metrics = new DisplayMetrics();
-            metrics.setToDefaults();
-
-            parser = assets.openXmlResourceParser(cookie, ANDROID_MANIFEST_FILENAME);
+            parser = apkAssets.openXml(ANDROID_MANIFEST_FILENAME);
 
             final SigningDetails signingDetails;
             if ((flags & PARSE_COLLECT_CERTIFICATES) != 0) {
                 // TODO: factor signature related items out of Package object
                 final Package tempPkg = new Package((String) null);
+                final boolean skipVerify = (flags & PARSE_IS_SYSTEM_DIR) != 0;
                 Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "collectCertificates");
                 try {
-                    collectCertificates(tempPkg, apkFile, flags);
+                    collectCertificates(tempPkg, apkFile, skipVerify);
                 } finally {
                     Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
                 }
@@ -1642,7 +1634,7 @@
                     "Failed to parse " + apkPath, e);
         } finally {
             IoUtils.closeQuietly(parser);
-            IoUtils.closeQuietly(assets);
+            IoUtils.closeQuietly(apkAssets);
         }
     }
 
@@ -2085,7 +2077,7 @@
                 pkg.mOverlayPriority = sa.getInt(
                         com.android.internal.R.styleable.AndroidManifestResourceOverlay_priority,
                         0);
-                pkg.mIsStaticOverlay = sa.getBoolean(
+                pkg.mOverlayIsStatic = sa.getBoolean(
                         com.android.internal.R.styleable.AndroidManifestResourceOverlay_isStatic,
                         false);
                 final String propName = sa.getString(
@@ -6094,8 +6086,7 @@
 
         public String mOverlayTarget;
         public int mOverlayPriority;
-        public boolean mIsStaticOverlay;
-        public boolean mTrustedOverlay;
+        public boolean mOverlayIsStatic;
 
         public int mCompileSdkVersion;
         public String mCompileSdkVersionCodename;
@@ -6625,8 +6616,7 @@
             mRequiredAccountType = dest.readString();
             mOverlayTarget = dest.readString();
             mOverlayPriority = dest.readInt();
-            mIsStaticOverlay = (dest.readInt() == 1);
-            mTrustedOverlay = (dest.readInt() == 1);
+            mOverlayIsStatic = (dest.readInt() == 1);
             mCompileSdkVersion = dest.readInt();
             mCompileSdkVersionCodename = dest.readString();
             mUpgradeKeySets = (ArraySet<String>) dest.readArraySet(boot);
@@ -6749,8 +6739,7 @@
             dest.writeString(mRequiredAccountType);
             dest.writeString(mOverlayTarget);
             dest.writeInt(mOverlayPriority);
-            dest.writeInt(mIsStaticOverlay ? 1 : 0);
-            dest.writeInt(mTrustedOverlay ? 1 : 0);
+            dest.writeInt(mOverlayIsStatic ? 1 : 0);
             dest.writeInt(mCompileSdkVersion);
             dest.writeString(mCompileSdkVersionCodename);
             dest.writeArraySet(mUpgradeKeySets);
diff --git a/core/java/android/content/pm/dex/ArtManager.java b/core/java/android/content/pm/dex/ArtManager.java
index 201cd8d..4129398 100644
--- a/core/java/android/content/pm/dex/ArtManager.java
+++ b/core/java/android/content/pm/dex/ArtManager.java
@@ -16,16 +16,22 @@
 
 package android.content.pm.dex;
 
+import android.annotation.CallbackExecutor;
+import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.Message;
+import android.os.Environment;
 import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
 import android.util.Slog;
 
+import java.io.File;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.concurrent.Executor;
+
 /**
  * Class for retrieving various kinds of information related to the runtime artifacts of
  * packages that are currently installed on the device.
@@ -43,6 +49,20 @@
     /** The snapshot failed because of an internal error (e.g. error during opening profiles). */
     public static final int SNAPSHOT_FAILED_INTERNAL_ERROR = 2;
 
+    /** Constant used for applications profiles. */
+    public static final int PROFILE_APPS = 0;
+    /** Constant used for the boot image profile. */
+    public static final int PROFILE_BOOT_IMAGE = 1;
+
+    /** @hide */
+    @IntDef(flag = true, prefix = { "PROFILE_" }, value = {
+            PROFILE_APPS,
+            PROFILE_BOOT_IMAGE,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface ProfileType {}
+
+
     private IArtManager mArtManager;
 
     /**
@@ -53,41 +73,59 @@
     }
 
     /**
-     * Snapshots the runtime profile for an apk belonging to the package {@code packageName}.
-     * The apk is identified by {@code codePath}. The calling process must have
-     * {@code android.permission.READ_RUNTIME_PROFILE} permission.
+     * Snapshots a runtime profile according to the {@code profileType} parameter.
      *
-     * The result will be posted on {@code handler} using the given {@code callback}.
-     * The profile being available as a read-only {@link android.os.ParcelFileDescriptor}.
+     * If {@code profileType} is {@link ArtManager#PROFILE_APPS} the method will snapshot
+     * the profile for for an apk belonging to the package {@code packageName}.
+     * The apk is identified by {@code codePath}.
      *
-     * @param packageName the target package name
-     * @param codePath the code path for which the profile should be retrieved
+     * If {@code profileType} is {@code ArtManager.PROFILE_BOOT_IMAGE} the method will snapshot
+     * the profile for the boot image. In this case {@code codePath can be null}. The parameters
+     * {@code packageName} and {@code codePath} are ignored.
+     *u
+     * The calling process must have {@code android.permission.READ_RUNTIME_PROFILE} permission.
+     *
+     * The result will be posted on the {@code executor} using the given {@code callback}.
+     * The profile will be available as a read-only {@link android.os.ParcelFileDescriptor}.
+     *
+     * This method will throw {@link IllegalStateException} if
+     * {@link ArtManager#isRuntimeProfilingEnabled(int)} does not return true for the given
+     * {@code profileType}.
+     *
+     * @param profileType the type of profile that should be snapshot (boot image or app)
+     * @param packageName the target package name or null if the target is the boot image
+     * @param codePath the code path for which the profile should be retrieved or null if
+     *                 the target is the boot image
      * @param callback the callback which should be used for the result
-     * @param handler the handler which should be used to post the result
+     * @param executor the executor which should be used to post the result
      */
     @RequiresPermission(android.Manifest.permission.READ_RUNTIME_PROFILES)
-    public void snapshotRuntimeProfile(@NonNull String packageName, @NonNull String codePath,
-            @NonNull SnapshotRuntimeProfileCallback callback, @NonNull Handler handler) {
+    public void snapshotRuntimeProfile(@ProfileType int profileType, @Nullable String packageName,
+            @Nullable String codePath, @NonNull @CallbackExecutor Executor executor,
+            @NonNull SnapshotRuntimeProfileCallback callback) {
         Slog.d(TAG, "Requesting profile snapshot for " + packageName + ":" + codePath);
 
         SnapshotRuntimeProfileCallbackDelegate delegate =
-                new SnapshotRuntimeProfileCallbackDelegate(callback, handler.getLooper());
+                new SnapshotRuntimeProfileCallbackDelegate(callback, executor);
         try {
-            mArtManager.snapshotRuntimeProfile(packageName, codePath, delegate);
+            mArtManager.snapshotRuntimeProfile(profileType, packageName, codePath, delegate);
         } catch (RemoteException e) {
             e.rethrowAsRuntimeException();
         }
     }
 
     /**
-     * Returns true if runtime profiles are enabled, false otherwise.
+     * Returns true if runtime profiles are enabled for the given type, false otherwise.
      *
      * The calling process must have {@code android.permission.READ_RUNTIME_PROFILE} permission.
+     *
+     * @param profileType can be either {@link ArtManager#PROFILE_APPS}
+     *                    or {@link ArtManager#PROFILE_BOOT_IMAGE}
      */
     @RequiresPermission(android.Manifest.permission.READ_RUNTIME_PROFILES)
-    public boolean isRuntimeProfilingEnabled() {
+    public boolean isRuntimeProfilingEnabled(@ProfileType int profileType) {
         try {
-            return mArtManager.isRuntimeProfilingEnabled();
+            return mArtManager.isRuntimeProfilingEnabled(profileType);
         } catch (RemoteException e) {
             e.rethrowAsRuntimeException();
         }
@@ -116,41 +154,57 @@
     }
 
     private static class SnapshotRuntimeProfileCallbackDelegate
-            extends android.content.pm.dex.ISnapshotRuntimeProfileCallback.Stub
-            implements Handler.Callback {
-        private static final int MSG_SNAPSHOT_OK = 1;
-        private static final int MSG_ERROR = 2;
+            extends android.content.pm.dex.ISnapshotRuntimeProfileCallback.Stub {
         private final ArtManager.SnapshotRuntimeProfileCallback mCallback;
-        private final Handler mHandler;
+        private final Executor mExecutor;
 
         private SnapshotRuntimeProfileCallbackDelegate(
-                ArtManager.SnapshotRuntimeProfileCallback callback, Looper looper) {
+                ArtManager.SnapshotRuntimeProfileCallback callback, Executor executor) {
             mCallback = callback;
-            mHandler = new Handler(looper, this);
+            mExecutor = executor;
         }
 
         @Override
-        public void onSuccess(ParcelFileDescriptor profileReadFd) {
-            mHandler.obtainMessage(MSG_SNAPSHOT_OK, profileReadFd).sendToTarget();
+        public void onSuccess(final ParcelFileDescriptor profileReadFd) {
+            mExecutor.execute(() -> mCallback.onSuccess(profileReadFd));
         }
 
         @Override
         public void onError(int errCode) {
-            mHandler.obtainMessage(MSG_ERROR, errCode, 0).sendToTarget();
+            mExecutor.execute(() -> mCallback.onError(errCode));
         }
+    }
 
-        @Override
-        public boolean handleMessage(Message msg) {
-            switch (msg.what) {
-                case MSG_SNAPSHOT_OK:
-                    mCallback.onSuccess((ParcelFileDescriptor) msg.obj);
-                    break;
-                case MSG_ERROR:
-                    mCallback.onError(msg.arg1);
-                    break;
-                default: return false;
-            }
-            return true;
-        }
+    /**
+     * Return the profile name for the given split. If {@code splitName} is null the
+     * method returns the profile name for the base apk.
+     *
+     * @hide
+     */
+    public static String getProfileName(String splitName) {
+        return splitName == null ? "primary.prof" : splitName + ".split.prof";
+    }
+
+    /**
+     * Return the path to the current profile corresponding to given package and split.
+     *
+     * @hide
+     */
+    public static String getCurrentProfilePath(String packageName, int userId, String splitName) {
+        File profileDir = Environment.getDataProfilesDePackageDirectory(userId, packageName);
+        return new File(profileDir, getProfileName(splitName)).getAbsolutePath();
+    }
+
+    /**
+     * Return the snapshot profile file for the given package and profile name.
+     *
+     * KEEP in sync with installd dexopt.cpp.
+     * TODO(calin): inject the snapshot profile name from PM to avoid the dependency.
+     *
+     * @hide
+     */
+    public static File getProfileSnapshotFileForName(String packageName, String profileName) {
+        File profileDir = Environment.getDataRefProfilesDePackageDirectory(packageName);
+        return new File(profileDir, profileName  + ".snapshot");
     }
 }
diff --git a/core/java/android/content/pm/dex/IArtManager.aidl b/core/java/android/content/pm/dex/IArtManager.aidl
index 8cbb452..6abfdba 100644
--- a/core/java/android/content/pm/dex/IArtManager.aidl
+++ b/core/java/android/content/pm/dex/IArtManager.aidl
@@ -25,20 +25,34 @@
  */
 interface IArtManager {
     /**
-     * Snapshots the runtime profile for an apk belonging to the package {@param packageName}.
-     * The apk is identified by {@param codePath}. The calling process must have
-     * {@code android.permission.READ_RUNTIME_PROFILE} permission.
+     * Snapshots a runtime profile according to the {@code profileType} parameter.
      *
-     * The result will be posted on {@param callback} with the profile being available as a
-     * read-only {@link android.os.ParcelFileDescriptor}.
-     */
-    oneway void snapshotRuntimeProfile(in String packageName,
-        in String codePath, in ISnapshotRuntimeProfileCallback callback);
-
-    /**
-     * Returns true if runtime profiles are enabled, false otherwise.
+     * If {@code profileType} is {@link ArtManager#PROFILE_APPS} the method will snapshot
+     * the profile for for an apk belonging to the package {@code packageName}.
+     * The apk is identified by {@code codePath}.
+     *
+     * If {@code profileType} is {@code ArtManager.PROFILE_BOOT_IMAGE} the method will snapshot
+     * the profile for the boot image. In this case {@code codePath can be null}. The parameters
+     * {@code packageName} and {@code codePath} are ignored.
      *
      * The calling process must have {@code android.permission.READ_RUNTIME_PROFILE} permission.
+     *
+     * The result will be posted on the {@code executor} using the given {@code callback}.
+     * The profile will be available as a read-only {@link android.os.ParcelFileDescriptor}.
+     *
+     * This method will throw {@link IllegalStateException} if
+     * {@link ArtManager#isRuntimeProfilingEnabled(int)} does not return true for the given
+     * {@code profileType}.
      */
-    boolean isRuntimeProfilingEnabled();
+    oneway void snapshotRuntimeProfile(int profileType, in String packageName,
+        in String codePath, in ISnapshotRuntimeProfileCallback callback);
+
+     /**
+       * Returns true if runtime profiles are enabled for the given type, false otherwise.
+       * The type can be can be either {@code ArtManager.PROFILE_APPS}
+       * or {@code ArtManager.PROFILE_BOOT_IMAGE}.
+       *
+       * @param profileType
+       */
+    boolean isRuntimeProfilingEnabled(int profileType);
 }
diff --git a/core/java/android/content/res/ApkAssets.java b/core/java/android/content/res/ApkAssets.java
new file mode 100644
index 0000000..b087c48
--- /dev/null
+++ b/core/java/android/content/res/ApkAssets.java
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.content.res;
+
+import android.annotation.NonNull;
+
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.util.Preconditions;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+
+/**
+ * The loaded, immutable, in-memory representation of an APK.
+ *
+ * The main implementation is native C++ and there is very little API surface exposed here. The APK
+ * is mainly accessed via {@link AssetManager}.
+ *
+ * Since the ApkAssets instance is immutable, it can be reused and shared across AssetManagers,
+ * making the creation of AssetManagers very cheap.
+ * @hide
+ */
+public final class ApkAssets implements AutoCloseable {
+    @GuardedBy("this") private long mNativePtr;
+    @GuardedBy("this") private StringBlock mStringBlock;
+
+    /**
+     * Creates a new ApkAssets instance from the given path on disk.
+     *
+     * @param path The path to an APK on disk.
+     * @return a new instance of ApkAssets.
+     * @throws IOException if a disk I/O error or parsing error occurred.
+     */
+    public static @NonNull ApkAssets loadFromPath(@NonNull String path) throws IOException {
+        return new ApkAssets(path, false /*system*/, false /*forceSharedLib*/, false /*overlay*/);
+    }
+
+    /**
+     * Creates a new ApkAssets instance from the given path on disk.
+     *
+     * @param path The path to an APK on disk.
+     * @param system When true, the APK is loaded as a system APK (framework).
+     * @return a new instance of ApkAssets.
+     * @throws IOException if a disk I/O error or parsing error occurred.
+     */
+    public static @NonNull ApkAssets loadFromPath(@NonNull String path, boolean system)
+            throws IOException {
+        return new ApkAssets(path, system, false /*forceSharedLib*/, false /*overlay*/);
+    }
+
+    /**
+     * Creates a new ApkAssets instance from the given path on disk.
+     *
+     * @param path The path to an APK on disk.
+     * @param system When true, the APK is loaded as a system APK (framework).
+     * @param forceSharedLibrary When true, any packages within the APK with package ID 0x7f are
+     *                           loaded as a shared library.
+     * @return a new instance of ApkAssets.
+     * @throws IOException if a disk I/O error or parsing error occurred.
+     */
+    public static @NonNull ApkAssets loadFromPath(@NonNull String path, boolean system,
+            boolean forceSharedLibrary) throws IOException {
+        return new ApkAssets(path, system, forceSharedLibrary, false /*overlay*/);
+    }
+
+    /**
+     * Creates a new ApkAssets instance from the given file descriptor. Not for use by applications.
+     *
+     * Performs a dup of the underlying fd, so you must take care of still closing
+     * the FileDescriptor yourself (and can do that whenever you want).
+     *
+     * @param fd The FileDescriptor of an open, readable APK.
+     * @param friendlyName The friendly name used to identify this ApkAssets when logging.
+     * @param system When true, the APK is loaded as a system APK (framework).
+     * @param forceSharedLibrary When true, any packages within the APK with package ID 0x7f are
+     *                           loaded as a shared library.
+     * @return a new instance of ApkAssets.
+     * @throws IOException if a disk I/O error or parsing error occurred.
+     */
+    public static @NonNull ApkAssets loadFromFd(@NonNull FileDescriptor fd,
+            @NonNull String friendlyName, boolean system, boolean forceSharedLibrary)
+            throws IOException {
+        return new ApkAssets(fd, friendlyName, system, forceSharedLibrary);
+    }
+
+    /**
+     * Creates a new ApkAssets instance from the IDMAP at idmapPath. The overlay APK path
+     * is encoded within the IDMAP.
+     *
+     * @param idmapPath Path to the IDMAP of an overlay APK.
+     * @param system When true, the APK is loaded as a system APK (framework).
+     * @return a new instance of ApkAssets.
+     * @throws IOException if a disk I/O error or parsing error occurred.
+     */
+    public static @NonNull ApkAssets loadOverlayFromPath(@NonNull String idmapPath, boolean system)
+            throws IOException {
+        return new ApkAssets(idmapPath, system, false /*forceSharedLibrary*/, true /*overlay*/);
+    }
+
+    private ApkAssets(@NonNull String path, boolean system, boolean forceSharedLib, boolean overlay)
+            throws IOException {
+        Preconditions.checkNotNull(path, "path");
+        mNativePtr = nativeLoad(path, system, forceSharedLib, overlay);
+        mStringBlock = new StringBlock(nativeGetStringBlock(mNativePtr), true /*useSparse*/);
+    }
+
+    private ApkAssets(@NonNull FileDescriptor fd, @NonNull String friendlyName, boolean system,
+            boolean forceSharedLib) throws IOException {
+        Preconditions.checkNotNull(fd, "fd");
+        Preconditions.checkNotNull(friendlyName, "friendlyName");
+        mNativePtr = nativeLoadFromFd(fd, friendlyName, system, forceSharedLib);
+        mStringBlock = new StringBlock(nativeGetStringBlock(mNativePtr), true /*useSparse*/);
+    }
+
+    @NonNull String getAssetPath() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetAssetPath(mNativePtr);
+        }
+    }
+
+    CharSequence getStringFromPool(int idx) {
+        synchronized (this) {
+            ensureValidLocked();
+            return mStringBlock.get(idx);
+        }
+    }
+
+    /**
+     * Retrieve a parser for a compiled XML file. This is associated with a single APK and
+     * <em>NOT</em> a full AssetManager. This means that shared-library references will not be
+     * dynamically assigned runtime package IDs.
+     *
+     * @param fileName The path to the file within the APK.
+     * @return An XmlResourceParser.
+     * @throws IOException if the file was not found or an error occurred retrieving it.
+     */
+    public @NonNull XmlResourceParser openXml(@NonNull String fileName) throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
+        synchronized (this) {
+            ensureValidLocked();
+            long nativeXmlPtr = nativeOpenXml(mNativePtr, fileName);
+            try (XmlBlock block = new XmlBlock(null, nativeXmlPtr)) {
+                XmlResourceParser parser = block.newParser();
+                // If nativeOpenXml doesn't throw, it will always return a valid native pointer,
+                // which makes newParser always return non-null. But let's be paranoid.
+                if (parser == null) {
+                    throw new AssertionError("block.newParser() returned a null parser");
+                }
+                return parser;
+            }
+        }
+    }
+
+    /**
+     * Returns false if the underlying APK was changed since this ApkAssets was loaded.
+     */
+    public boolean isUpToDate() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeIsUpToDate(mNativePtr);
+        }
+    }
+
+    /**
+     * Closes the ApkAssets and destroys the underlying native implementation. Further use of the
+     * ApkAssets object will cause exceptions to be thrown.
+     *
+     * Calling close on an already closed ApkAssets does nothing.
+     */
+    @Override
+    public void close() {
+        synchronized (this) {
+            if (mNativePtr == 0) {
+                return;
+            }
+
+            mStringBlock = null;
+            nativeDestroy(mNativePtr);
+            mNativePtr = 0;
+        }
+    }
+
+    @Override
+    protected void finalize() throws Throwable {
+        if (mNativePtr != 0) {
+            nativeDestroy(mNativePtr);
+        }
+    }
+
+    private void ensureValidLocked() {
+        if (mNativePtr == 0) {
+            throw new RuntimeException("ApkAssets is closed");
+        }
+    }
+
+    private static native long nativeLoad(
+            @NonNull String path, boolean system, boolean forceSharedLib, boolean overlay)
+            throws IOException;
+    private static native long nativeLoadFromFd(@NonNull FileDescriptor fd,
+            @NonNull String friendlyName, boolean system, boolean forceSharedLib)
+            throws IOException;
+    private static native void nativeDestroy(long ptr);
+    private static native @NonNull String nativeGetAssetPath(long ptr);
+    private static native long nativeGetStringBlock(long ptr);
+    private static native boolean nativeIsUpToDate(long ptr);
+    private static native long nativeOpenXml(long ptr, @NonNull String fileName) throws IOException;
+}
diff --git a/core/java/android/content/res/AssetManager.java b/core/java/android/content/res/AssetManager.java
index 7866560..78370f4 100644
--- a/core/java/android/content/res/AssetManager.java
+++ b/core/java/android/content/res/AssetManager.java
@@ -18,9 +18,11 @@
 
 import android.annotation.AnyRes;
 import android.annotation.ArrayRes;
+import android.annotation.AttrRes;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StringRes;
+import android.annotation.StyleRes;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration.NativeConfig;
 import android.os.ParcelFileDescriptor;
@@ -28,10 +30,18 @@
 import android.util.SparseArray;
 import android.util.TypedValue;
 
-import java.io.FileDescriptor;
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.util.Preconditions;
+
+import java.io.BufferedReader;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.nio.channels.FileLock;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 
 /**
@@ -42,7 +52,17 @@
  * bytes.
  */
 public final class AssetManager implements AutoCloseable {
-    /* modes used when opening an asset */
+    private static final String TAG = "AssetManager";
+    private static final boolean DEBUG_REFS = false;
+
+    private static final String FRAMEWORK_APK_PATH = "/system/framework/framework-res.apk";
+
+    private static final Object sSync = new Object();
+
+    // Not private for LayoutLib's BridgeAssetManager.
+    @GuardedBy("sSync") static AssetManager sSystem = null;
+
+    @GuardedBy("sSync") private static ApkAssets[] sSystemApkAssets = new ApkAssets[0];
 
     /**
      * Mode for {@link #open(String, int)}: no specific information about how
@@ -65,146 +85,246 @@
      */
     public static final int ACCESS_BUFFER = 3;
 
-    private static final String TAG = "AssetManager";
-    private static final boolean localLOGV = false || false;
-    
-    private static final boolean DEBUG_REFS = false;
-    
-    private static final Object sSync = new Object();
-    /*package*/ static AssetManager sSystem = null;
+    @GuardedBy("this") private final TypedValue mValue = new TypedValue();
+    @GuardedBy("this") private final long[] mOffsets = new long[2];
 
-    private final TypedValue mValue = new TypedValue();
-    private final long[] mOffsets = new long[2];
-    
-    // For communication with native code.
-    private long mObject;
+    // Pointer to native implementation, stuffed inside a long.
+    @GuardedBy("this") private long mObject;
 
-    private StringBlock mStringBlocks[] = null;
-    
-    private int mNumRefs = 1;
-    private boolean mOpen = true;
-    private HashMap<Long, RuntimeException> mRefStacks;
- 
+    // The loaded asset paths.
+    @GuardedBy("this") private ApkAssets[] mApkAssets;
+
+    // Debug/reference counting implementation.
+    @GuardedBy("this") private boolean mOpen = true;
+    @GuardedBy("this") private int mNumRefs = 1;
+    @GuardedBy("this") private HashMap<Long, RuntimeException> mRefStacks;
+
     /**
      * Create a new AssetManager containing only the basic system assets.
      * Applications will not generally use this method, instead retrieving the
      * appropriate asset manager with {@link Resources#getAssets}.    Not for
      * use by applications.
-     * {@hide}
+     * @hide
      */
     public AssetManager() {
-        synchronized (this) {
-            if (DEBUG_REFS) {
-                mNumRefs = 0;
-                incRefsLocked(this.hashCode());
-            }
-            init(false);
-            if (localLOGV) Log.v(TAG, "New asset manager: " + this);
-            ensureSystemAssets();
+        final ApkAssets[] assets;
+        synchronized (sSync) {
+            createSystemAssetsInZygoteLocked();
+            assets = sSystemApkAssets;
+        }
+
+        mObject = nativeCreate();
+        if (DEBUG_REFS) {
+            mNumRefs = 0;
+            incRefsLocked(hashCode());
+        }
+
+        // Always set the framework resources.
+        setApkAssets(assets, false /*invalidateCaches*/);
+    }
+
+    /**
+     * Private constructor that doesn't call ensureSystemAssets.
+     * Used for the creation of system assets.
+     */
+    @SuppressWarnings("unused")
+    private AssetManager(boolean sentinel) {
+        mObject = nativeCreate();
+        if (DEBUG_REFS) {
+            mNumRefs = 0;
+            incRefsLocked(hashCode());
         }
     }
 
-    private static void ensureSystemAssets() {
-        synchronized (sSync) {
-            if (sSystem == null) {
-                AssetManager system = new AssetManager(true);
-                system.makeStringBlocks(null);
-                sSystem = system;
-            }
+    /**
+     * This must be called from Zygote so that system assets are shared by all applications.
+     * @hide
+     */
+    private static void createSystemAssetsInZygoteLocked() {
+        if (sSystem != null) {
+            return;
         }
-    }
-    
-    private AssetManager(boolean isSystem) {
-        if (DEBUG_REFS) {
-            synchronized (this) {
-                mNumRefs = 0;
-                incRefsLocked(this.hashCode());
+
+        // Make sure that all IDMAPs are up to date.
+        nativeVerifySystemIdmaps();
+
+        try {
+            ArrayList<ApkAssets> apkAssets = new ArrayList<>();
+            apkAssets.add(ApkAssets.loadFromPath(FRAMEWORK_APK_PATH, true /*system*/));
+
+            // Load all static RROs.
+            try (FileInputStream fis = new FileInputStream(
+                    "/data/resource-cache/overlays.list");
+                 BufferedReader br = new BufferedReader(new InputStreamReader(fis))) {
+                // Acquire a lock so that any idmap scanning doesn't impact the current set.
+                try (FileLock flock = fis.getChannel().lock(0, Long.MAX_VALUE,
+                        true /*shared*/)) {
+                    for (String line; (line = br.readLine()) != null; ) {
+                        String idmapPath = line.split(" ")[1];
+                        apkAssets.add(
+                                ApkAssets.loadOverlayFromPath(idmapPath, true /*system*/));
+                    }
+                }
             }
+
+            sSystemApkAssets = apkAssets.toArray(new ApkAssets[apkAssets.size()]);
+            sSystem = new AssetManager(true /*sentinel*/);
+            sSystem.setApkAssets(sSystemApkAssets, false /*invalidateCaches*/);
+        } catch (IOException e) {
+            throw new IllegalStateException("Failed to create system AssetManager", e);
         }
-        init(true);
-        if (localLOGV) Log.v(TAG, "New asset manager: " + this);
     }
 
     /**
      * Return a global shared asset manager that provides access to only
      * system assets (no application assets).
-     * {@hide}
+     * @hide
      */
     public static AssetManager getSystem() {
-        ensureSystemAssets();
-        return sSystem;
+        synchronized (sSync) {
+            createSystemAssetsInZygoteLocked();
+            return sSystem;
+        }
     }
 
     /**
      * Close this asset manager.
      */
+    @Override
     public void close() {
-        synchronized(this) {
-            //System.out.println("Release: num=" + mNumRefs
-            //                   + ", released=" + mReleased);
-            if (mOpen) {
-                mOpen = false;
-                decRefsLocked(this.hashCode());
-            }
-        }
-    }
-
-    /**
-     * Retrieves the string value associated with a particular resource
-     * identifier for the current configuration.
-     *
-     * @param resId the resource identifier to load
-     * @return the string value, or {@code null}
-     */
-    @Nullable
-    final CharSequence getResourceText(@StringRes int resId) {
         synchronized (this) {
-            final TypedValue outValue = mValue;
-            if (getResourceValue(resId, 0, outValue, true)) {
-                return outValue.coerceToString();
+            if (!mOpen) {
+                return;
             }
-            return null;
+
+            mOpen = false;
+            decRefsLocked(hashCode());
         }
     }
 
     /**
-     * Retrieves the string value associated with a particular resource
-     * identifier for the current configuration.
+     * Changes the asset paths in this AssetManager. This replaces the {@link #addAssetPath(String)}
+     * family of methods.
      *
-     * @param resId the resource identifier to load
-     * @param bagEntryId
-     * @return the string value, or {@code null}
+     * @param apkAssets The new set of paths.
+     * @param invalidateCaches Whether to invalidate any caches. This should almost always be true.
+     *                         Set this to false if you are appending new resources
+     *                         (not new configurations).
+     * @hide
      */
-    @Nullable
-    final CharSequence getResourceBagText(@StringRes int resId, int bagEntryId) {
+    public void setApkAssets(@NonNull ApkAssets[] apkAssets, boolean invalidateCaches) {
+        Preconditions.checkNotNull(apkAssets, "apkAssets");
         synchronized (this) {
-            final TypedValue outValue = mValue;
-            final int block = loadResourceBagValue(resId, bagEntryId, outValue, true);
-            if (block < 0) {
-                return null;
+            ensureValidLocked();
+            mApkAssets = apkAssets;
+            nativeSetApkAssets(mObject, apkAssets, invalidateCaches);
+            if (invalidateCaches) {
+                // Invalidate all caches.
+                invalidateCachesLocked(-1);
             }
-
-            // Convert the changing configurations flags populated by native code.
-            outValue.changingConfigurations = ActivityInfo.activityInfoConfigNativeToJava(
-                    outValue.changingConfigurations);
-
-            if (outValue.type == TypedValue.TYPE_STRING) {
-                return mStringBlocks[block].get(outValue.data);
-            }
-            return outValue.coerceToString();
         }
     }
 
     /**
-     * Retrieves the string array associated with a particular resource
-     * identifier for the current configuration.
+     * Invalidates the caches in this AssetManager according to the bitmask `diff`.
      *
-     * @param resId the resource identifier of the string array
-     * @return the string array, or {@code null}
+     * @param diff The bitmask of changes generated by {@link Configuration#diff(Configuration)}.
+     * @see ActivityInfo.Config
      */
-    @Nullable
-    final String[] getResourceStringArray(@ArrayRes int resId) {
-        return getArrayStringResource(resId);
+    private void invalidateCachesLocked(int diff) {
+        // TODO(adamlesinski): Currently there are no caches to invalidate in Java code.
+    }
+
+    /**
+     * @hide
+     */
+    public @NonNull ApkAssets[] getApkAssets() {
+        synchronized (this) {
+            ensureValidLocked();
+            return mApkAssets;
+        }
+    }
+
+    /**
+     * @deprecated Use {@link #setApkAssets(ApkAssets[], boolean)}
+     * @hide
+     */
+    @Deprecated
+    public int addAssetPath(String path) {
+        return addAssetPathInternal(path, false /*overlay*/, false /*appAsLib*/);
+    }
+
+    /**
+     * @deprecated Use {@link #setApkAssets(ApkAssets[], boolean)}
+     * @hide
+     */
+    @Deprecated
+    public int addAssetPathAsSharedLibrary(String path) {
+        return addAssetPathInternal(path, false /*overlay*/, true /*appAsLib*/);
+    }
+
+    /**
+     * @deprecated Use {@link #setApkAssets(ApkAssets[], boolean)}
+     * @hide
+     */
+    @Deprecated
+    public int addOverlayPath(String path) {
+        return addAssetPathInternal(path, true /*overlay*/, false /*appAsLib*/);
+    }
+
+    private int addAssetPathInternal(String path, boolean overlay, boolean appAsLib) {
+        Preconditions.checkNotNull(path, "path");
+        synchronized (this) {
+            ensureOpenLocked();
+            final int count = mApkAssets.length;
+            for (int i = 0; i < count; i++) {
+                if (mApkAssets[i].getAssetPath().equals(path)) {
+                    return i + 1;
+                }
+            }
+
+            final ApkAssets assets;
+            try {
+                if (overlay) {
+                    // TODO(b/70343104): This hardcoded path will be removed once
+                    // addAssetPathInternal is deleted.
+                    final String idmapPath = "/data/resource-cache/"
+                            + path.substring(1).replace('/', '@')
+                            + "@idmap";
+                    assets = ApkAssets.loadOverlayFromPath(idmapPath, false /*system*/);
+                } else {
+                    assets = ApkAssets.loadFromPath(path, false /*system*/, appAsLib);
+                }
+            } catch (IOException e) {
+                return 0;
+            }
+
+            final ApkAssets[] newApkAssets = Arrays.copyOf(mApkAssets, count + 1);
+            newApkAssets[count] = assets;
+            setApkAssets(newApkAssets, true);
+            return count + 1;
+        }
+    }
+
+    /**
+     * Ensures that the native implementation has not been destroyed.
+     * The AssetManager may have been closed, but references to it still exist
+     * and therefore the native implementation is not destroyed.
+     */
+    private void ensureValidLocked() {
+        if (mObject == 0) {
+            throw new RuntimeException("AssetManager has been destroyed");
+        }
+    }
+
+    /**
+     * Ensures that the AssetManager has not been explicitly closed. If this method passes,
+     * then this implies that ensureValidLocked() also passes.
+     */
+    private void ensureOpenLocked() {
+        if (!mOpen) {
+            throw new RuntimeException("AssetManager has been closed");
+        }
     }
 
     /**
@@ -219,11 +339,14 @@
      * @return {@code true} if the data was loaded into {@code outValue},
      *         {@code false} otherwise
      */
-    final boolean getResourceValue(@AnyRes int resId, int densityDpi, @NonNull TypedValue outValue,
+    boolean getResourceValue(@AnyRes int resId, int densityDpi, @NonNull TypedValue outValue,
             boolean resolveRefs) {
+        Preconditions.checkNotNull(outValue, "outValue");
         synchronized (this) {
-            final int block = loadResourceValue(resId, (short) densityDpi, outValue, resolveRefs);
-            if (block < 0) {
+            ensureValidLocked();
+            final int cookie = nativeGetResourceValue(
+                    mObject, resId, (short) densityDpi, outValue, resolveRefs);
+            if (cookie <= 0) {
                 return false;
             }
 
@@ -232,38 +355,156 @@
                     outValue.changingConfigurations);
 
             if (outValue.type == TypedValue.TYPE_STRING) {
-                outValue.string = mStringBlocks[block].get(outValue.data);
+                outValue.string = mApkAssets[cookie - 1].getStringFromPool(outValue.data);
             }
             return true;
         }
     }
 
     /**
+     * Retrieves the string value associated with a particular resource
+     * identifier for the current configuration.
+     *
+     * @param resId the resource identifier to load
+     * @return the string value, or {@code null}
+     */
+    @Nullable CharSequence getResourceText(@StringRes int resId) {
+        synchronized (this) {
+            final TypedValue outValue = mValue;
+            if (getResourceValue(resId, 0, outValue, true)) {
+                return outValue.coerceToString();
+            }
+            return null;
+        }
+    }
+
+    /**
+     * Retrieves the string value associated with a particular resource
+     * identifier for the current configuration.
+     *
+     * @param resId the resource identifier to load
+     * @param bagEntryId the index into the bag to load
+     * @return the string value, or {@code null}
+     */
+    @Nullable CharSequence getResourceBagText(@StringRes int resId, int bagEntryId) {
+        synchronized (this) {
+            ensureValidLocked();
+            final TypedValue outValue = mValue;
+            final int cookie = nativeGetResourceBagValue(mObject, resId, bagEntryId, outValue);
+            if (cookie <= 0) {
+                return null;
+            }
+
+            // Convert the changing configurations flags populated by native code.
+            outValue.changingConfigurations = ActivityInfo.activityInfoConfigNativeToJava(
+                    outValue.changingConfigurations);
+
+            if (outValue.type == TypedValue.TYPE_STRING) {
+                return mApkAssets[cookie - 1].getStringFromPool(outValue.data);
+            }
+            return outValue.coerceToString();
+        }
+    }
+
+    int getResourceArraySize(@ArrayRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceArraySize(mObject, resId);
+        }
+    }
+
+    /**
+     * Populates `outData` with array elements of `resId`. `outData` is normally
+     * used with
+     * {@link TypedArray}.
+     *
+     * Each logical element in `outData` is {@link TypedArray#STYLE_NUM_ENTRIES}
+     * long,
+     * with the indices of the data representing the type, value, asset cookie,
+     * resource ID,
+     * configuration change mask, and density of the element.
+     *
+     * @param resId The resource ID of an array resource.
+     * @param outData The array to populate with data.
+     * @return The length of the array.
+     *
+     * @see TypedArray#STYLE_TYPE
+     * @see TypedArray#STYLE_DATA
+     * @see TypedArray#STYLE_ASSET_COOKIE
+     * @see TypedArray#STYLE_RESOURCE_ID
+     * @see TypedArray#STYLE_CHANGING_CONFIGURATIONS
+     * @see TypedArray#STYLE_DENSITY
+     */
+    int getResourceArray(@ArrayRes int resId, @NonNull int[] outData) {
+        Preconditions.checkNotNull(outData, "outData");
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceArray(mObject, resId, outData);
+        }
+    }
+
+    /**
+     * Retrieves the string array associated with a particular resource
+     * identifier for the current configuration.
+     *
+     * @param resId the resource identifier of the string array
+     * @return the string array, or {@code null}
+     */
+    @Nullable String[] getResourceStringArray(@ArrayRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceStringArray(mObject, resId);
+        }
+    }
+
+    /**
      * Retrieve the text array associated with a particular resource
      * identifier.
      *
      * @param resId the resource id of the string array
      */
-    final @Nullable CharSequence[] getResourceTextArray(@ArrayRes int resId) {
+    @Nullable CharSequence[] getResourceTextArray(@ArrayRes int resId) {
         synchronized (this) {
-            final int[] rawInfoArray = getArrayStringInfo(resId);
+            ensureValidLocked();
+            final int[] rawInfoArray = nativeGetResourceStringArrayInfo(mObject, resId);
             if (rawInfoArray == null) {
                 return null;
             }
+
             final int rawInfoArrayLen = rawInfoArray.length;
             final int infoArrayLen = rawInfoArrayLen / 2;
-            int block;
-            int index;
             final CharSequence[] retArray = new CharSequence[infoArrayLen];
             for (int i = 0, j = 0; i < rawInfoArrayLen; i = i + 2, j++) {
-                block = rawInfoArray[i];
-                index = rawInfoArray[i + 1];
-                retArray[j] = index >= 0 ? mStringBlocks[block].get(index) : null;
+                int cookie = rawInfoArray[i];
+                int index = rawInfoArray[i + 1];
+                retArray[j] = (index >= 0 && cookie > 0)
+                        ? mApkAssets[cookie - 1].getStringFromPool(index) : null;
             }
             return retArray;
         }
     }
 
+    @Nullable int[] getResourceIntArray(@ArrayRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceIntArray(mObject, resId);
+        }
+    }
+
+    /**
+     * Get the attributes for a style resource. These are the &lt;item&gt;
+     * elements in
+     * a &lt;style&gt; resource.
+     * @param resId The resource ID of the style
+     * @return An array of attribute IDs.
+     */
+    @AttrRes int[] getStyleAttributes(@StyleRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetStyleAttributes(mObject, resId);
+        }
+    }
+
     /**
      * Populates {@code outValue} with the data associated with a particular
      * resource identifier for the current configuration. Resolves theme
@@ -277,73 +518,88 @@
      * @return {@code true} if the data was loaded into {@code outValue},
      *         {@code false} otherwise
      */
-    final boolean getThemeValue(long theme, @AnyRes int resId, @NonNull TypedValue outValue,
+    boolean getThemeValue(long theme, @AnyRes int resId, @NonNull TypedValue outValue,
             boolean resolveRefs) {
-        final int block = loadThemeAttributeValue(theme, resId, outValue, resolveRefs);
-        if (block < 0) {
-            return false;
-        }
-
-        // Convert the changing configurations flags populated by native code.
-        outValue.changingConfigurations = ActivityInfo.activityInfoConfigNativeToJava(
-                outValue.changingConfigurations);
-
-        if (outValue.type == TypedValue.TYPE_STRING) {
-            final StringBlock[] blocks = ensureStringBlocks();
-            outValue.string = blocks[block].get(outValue.data);
-        }
-        return true;
-    }
-
-    /**
-     * Ensures the string blocks are loaded.
-     *
-     * @return the string blocks
-     */
-    @NonNull
-    final StringBlock[] ensureStringBlocks() {
+        Preconditions.checkNotNull(outValue, "outValue");
         synchronized (this) {
-            if (mStringBlocks == null) {
-                makeStringBlocks(sSystem.mStringBlocks);
+            ensureValidLocked();
+            final int cookie = nativeThemeGetAttributeValue(mObject, theme, resId, outValue,
+                    resolveRefs);
+            if (cookie <= 0) {
+                return false;
             }
-            return mStringBlocks;
+
+            // Convert the changing configurations flags populated by native code.
+            outValue.changingConfigurations = ActivityInfo.activityInfoConfigNativeToJava(
+                    outValue.changingConfigurations);
+
+            if (outValue.type == TypedValue.TYPE_STRING) {
+                outValue.string = mApkAssets[cookie - 1].getStringFromPool(outValue.data);
+            }
+            return true;
         }
     }
 
-    /*package*/ final void makeStringBlocks(StringBlock[] seed) {
-        final int seedNum = (seed != null) ? seed.length : 0;
-        final int num = getStringBlockCount();
-        mStringBlocks = new StringBlock[num];
-        if (localLOGV) Log.v(TAG, "Making string blocks for " + this
-                + ": " + num);
-        for (int i=0; i<num; i++) {
-            if (i < seedNum) {
-                mStringBlocks[i] = seed[i];
-            } else {
-                mStringBlocks[i] = new StringBlock(getNativeStringBlock(i), true);
-            }
-        }
-    }
-
-    /*package*/ final CharSequence getPooledStringForCookie(int cookie, int id) {
+    void dumpTheme(long theme, int priority, String tag, String prefix) {
         synchronized (this) {
-            // Cookies map to string blocks starting at 1.
-            return mStringBlocks[cookie - 1].get(id);
+            ensureValidLocked();
+            nativeThemeDump(mObject, theme, priority, tag, prefix);
         }
     }
 
+    @Nullable String getResourceName(@AnyRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceName(mObject, resId);
+        }
+    }
+
+    @Nullable String getResourcePackageName(@AnyRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourcePackageName(mObject, resId);
+        }
+    }
+
+    @Nullable String getResourceTypeName(@AnyRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceTypeName(mObject, resId);
+        }
+    }
+
+    @Nullable String getResourceEntryName(@AnyRes int resId) {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetResourceEntryName(mObject, resId);
+        }
+    }
+
+    @AnyRes int getResourceIdentifier(@NonNull String name, @Nullable String defType,
+            @Nullable String defPackage) {
+        synchronized (this) {
+            ensureValidLocked();
+            // name is checked in JNI.
+            return nativeGetResourceIdentifier(mObject, name, defType, defPackage);
+        }
+    }
+
+    CharSequence getPooledStringForCookie(int cookie, int id) {
+        // Cookies map to ApkAssets starting at 1.
+        return getApkAssets()[cookie - 1].getStringFromPool(id);
+    }
+
     /**
      * Open an asset using ACCESS_STREAMING mode.  This provides access to
      * files that have been bundled with an application as assets -- that is,
      * files placed in to the "assets" directory.
      * 
-     * @param fileName The name of the asset to open.  This name can be
-     *                 hierarchical.
+     * @param fileName The name of the asset to open.  This name can be hierarchical.
      * 
      * @see #open(String, int)
      * @see #list
      */
-    public final InputStream open(String fileName) throws IOException {
+    public @NonNull InputStream open(@NonNull String fileName) throws IOException {
         return open(fileName, ACCESS_STREAMING);
     }
 
@@ -353,8 +609,7 @@
      * with an application as assets -- that is, files placed in to the
      * "assets" directory.
      * 
-     * @param fileName The name of the asset to open.  This name can be
-     *                 hierarchical.
+     * @param fileName The name of the asset to open.  This name can be hierarchical.
      * @param accessMode Desired access mode for retrieving the data.
      * 
      * @see #ACCESS_UNKNOWN
@@ -364,34 +619,40 @@
      * @see #open(String)
      * @see #list
      */
-    public final InputStream open(String fileName, int accessMode)
-        throws IOException {
+    public @NonNull InputStream open(@NonNull String fileName, int accessMode) throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
+            ensureOpenLocked();
+            final long asset = nativeOpenAsset(mObject, fileName, accessMode);
+            if (asset == 0) {
+                throw new FileNotFoundException("Asset file: " + fileName);
             }
-            long asset = openAsset(fileName, accessMode);
-            if (asset != 0) {
-                AssetInputStream res = new AssetInputStream(asset);
-                incRefsLocked(res.hashCode());
-                return res;
-            }
+            final AssetInputStream assetInputStream = new AssetInputStream(asset);
+            incRefsLocked(assetInputStream.hashCode());
+            return assetInputStream;
         }
-        throw new FileNotFoundException("Asset file: " + fileName);
     }
 
-    public final AssetFileDescriptor openFd(String fileName)
-            throws IOException {
+    /**
+     * Open an uncompressed asset by mmapping it and returning an {@link AssetFileDescriptor}.
+     * This provides access to files that have been bundled with an application as assets -- that
+     * is, files placed in to the "assets" directory.
+     *
+     * The asset must be uncompressed, or an exception will be thrown.
+     *
+     * @param fileName The name of the asset to open.  This name can be hierarchical.
+     * @return An open AssetFileDescriptor.
+     */
+    public @NonNull AssetFileDescriptor openFd(@NonNull String fileName) throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
+            ensureOpenLocked();
+            final ParcelFileDescriptor pfd = nativeOpenAssetFd(mObject, fileName, mOffsets);
+            if (pfd == null) {
+                throw new FileNotFoundException("Asset file: " + fileName);
             }
-            ParcelFileDescriptor pfd = openAssetFd(fileName, mOffsets);
-            if (pfd != null) {
-                return new AssetFileDescriptor(pfd, mOffsets[0], mOffsets[1]);
-            }
+            return new AssetFileDescriptor(pfd, mOffsets[0], mOffsets[1]);
         }
-        throw new FileNotFoundException("Asset file: " + fileName);
     }
 
     /**
@@ -406,90 +667,121 @@
      * 
      * @see #open
      */
-    public native final String[] list(String path)
-        throws IOException;
+    public @Nullable String[] list(@NonNull String path) throws IOException {
+        Preconditions.checkNotNull(path, "path");
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeList(mObject, path);
+        }
+    }
 
     /**
-     * {@hide}
      * Open a non-asset file as an asset using ACCESS_STREAMING mode.  This
      * provides direct access to all of the files included in an application
      * package (not only its assets).  Applications should not normally use
      * this.
-     * 
+     *
+     * @param fileName Name of the asset to retrieve.
+     *
      * @see #open(String)
+     * @hide
      */
-    public final InputStream openNonAsset(String fileName) throws IOException {
+    public @NonNull InputStream openNonAsset(@NonNull String fileName) throws IOException {
         return openNonAsset(0, fileName, ACCESS_STREAMING);
     }
 
     /**
-     * {@hide}
      * Open a non-asset file as an asset using a specific access mode.  This
      * provides direct access to all of the files included in an application
      * package (not only its assets).  Applications should not normally use
      * this.
-     * 
+     *
+     * @param fileName Name of the asset to retrieve.
+     * @param accessMode Desired access mode for retrieving the data.
+     *
+     * @see #ACCESS_UNKNOWN
+     * @see #ACCESS_STREAMING
+     * @see #ACCESS_RANDOM
+     * @see #ACCESS_BUFFER
      * @see #open(String, int)
+     * @hide
      */
-    public final InputStream openNonAsset(String fileName, int accessMode)
-        throws IOException {
+    public @NonNull InputStream openNonAsset(@NonNull String fileName, int accessMode)
+            throws IOException {
         return openNonAsset(0, fileName, accessMode);
     }
 
     /**
-     * {@hide}
      * Open a non-asset in a specified package.  Not for use by applications.
-     * 
+     *
      * @param cookie Identifier of the package to be opened.
      * @param fileName Name of the asset to retrieve.
+     * @hide
      */
-    public final InputStream openNonAsset(int cookie, String fileName)
-        throws IOException {
+    public @NonNull InputStream openNonAsset(int cookie, @NonNull String fileName)
+            throws IOException {
         return openNonAsset(cookie, fileName, ACCESS_STREAMING);
     }
 
     /**
-     * {@hide}
      * Open a non-asset in a specified package.  Not for use by applications.
-     * 
+     *
      * @param cookie Identifier of the package to be opened.
      * @param fileName Name of the asset to retrieve.
      * @param accessMode Desired access mode for retrieving the data.
+     * @hide
      */
-    public final InputStream openNonAsset(int cookie, String fileName, int accessMode)
-        throws IOException {
+    public @NonNull InputStream openNonAsset(int cookie, @NonNull String fileName, int accessMode)
+            throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
+            ensureOpenLocked();
+            final long asset = nativeOpenNonAsset(mObject, cookie, fileName, accessMode);
+            if (asset == 0) {
+                throw new FileNotFoundException("Asset absolute file: " + fileName);
             }
-            long asset = openNonAssetNative(cookie, fileName, accessMode);
-            if (asset != 0) {
-                AssetInputStream res = new AssetInputStream(asset);
-                incRefsLocked(res.hashCode());
-                return res;
-            }
+            final AssetInputStream assetInputStream = new AssetInputStream(asset);
+            incRefsLocked(assetInputStream.hashCode());
+            return assetInputStream;
         }
-        throw new FileNotFoundException("Asset absolute file: " + fileName);
     }
 
-    public final AssetFileDescriptor openNonAssetFd(String fileName)
+    /**
+     * Open a non-asset as an asset by mmapping it and returning an {@link AssetFileDescriptor}.
+     * This provides direct access to all of the files included in an application
+     * package (not only its assets).  Applications should not normally use this.
+     *
+     * The asset must not be compressed, or an exception will be thrown.
+     *
+     * @param fileName Name of the asset to retrieve.
+     */
+    public @NonNull AssetFileDescriptor openNonAssetFd(@NonNull String fileName)
             throws IOException {
         return openNonAssetFd(0, fileName);
     }
-    
-    public final AssetFileDescriptor openNonAssetFd(int cookie,
-            String fileName) throws IOException {
+
+    /**
+     * Open a non-asset as an asset by mmapping it and returning an {@link AssetFileDescriptor}.
+     * This provides direct access to all of the files included in an application
+     * package (not only its assets).  Applications should not normally use this.
+     *
+     * The asset must not be compressed, or an exception will be thrown.
+     *
+     * @param cookie Identifier of the package to be opened.
+     * @param fileName Name of the asset to retrieve.
+     */
+    public @NonNull AssetFileDescriptor openNonAssetFd(int cookie, @NonNull String fileName)
+            throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
+            ensureOpenLocked();
+            final ParcelFileDescriptor pfd =
+                    nativeOpenNonAssetFd(mObject, cookie, fileName, mOffsets);
+            if (pfd == null) {
+                throw new FileNotFoundException("Asset absolute file: " + fileName);
             }
-            ParcelFileDescriptor pfd = openNonAssetFdNative(cookie,
-                    fileName, mOffsets);
-            if (pfd != null) {
-                return new AssetFileDescriptor(pfd, mOffsets[0], mOffsets[1]);
-            }
+            return new AssetFileDescriptor(pfd, mOffsets[0], mOffsets[1]);
         }
-        throw new FileNotFoundException("Asset absolute file: " + fileName);
     }
     
     /**
@@ -497,7 +789,7 @@
      * 
      * @param fileName The name of the file to retrieve.
      */
-    public final XmlResourceParser openXmlResourceParser(String fileName)
+    public @NonNull XmlResourceParser openXmlResourceParser(@NonNull String fileName)
             throws IOException {
         return openXmlResourceParser(0, fileName);
     }
@@ -508,270 +800,265 @@
      * @param cookie Identifier of the package to be opened.
      * @param fileName The name of the file to retrieve.
      */
-    public final XmlResourceParser openXmlResourceParser(int cookie,
-            String fileName) throws IOException {
-        XmlBlock block = openXmlBlockAsset(cookie, fileName);
-        XmlResourceParser rp = block.newParser();
-        block.close();
-        return rp;
+    public @NonNull XmlResourceParser openXmlResourceParser(int cookie, @NonNull String fileName)
+            throws IOException {
+        try (XmlBlock block = openXmlBlockAsset(cookie, fileName)) {
+            XmlResourceParser parser = block.newParser();
+            // If openXmlBlockAsset doesn't throw, it will always return an XmlBlock object with
+            // a valid native pointer, which makes newParser always return non-null. But let's
+            // be paranoid.
+            if (parser == null) {
+                throw new AssertionError("block.newParser() returned a null parser");
+            }
+            return parser;
+        }
     }
 
     /**
-     * {@hide}
-     * Retrieve a non-asset as a compiled XML file.  Not for use by
-     * applications.
+     * Retrieve a non-asset as a compiled XML file.  Not for use by applications.
      * 
      * @param fileName The name of the file to retrieve.
+     * @hide
      */
-    /*package*/ final XmlBlock openXmlBlockAsset(String fileName)
-            throws IOException {
+    @NonNull XmlBlock openXmlBlockAsset(@NonNull String fileName) throws IOException {
         return openXmlBlockAsset(0, fileName);
     }
 
     /**
-     * {@hide}
      * Retrieve a non-asset as a compiled XML file.  Not for use by
      * applications.
      * 
      * @param cookie Identifier of the package to be opened.
      * @param fileName Name of the asset to retrieve.
+     * @hide
      */
-    /*package*/ final XmlBlock openXmlBlockAsset(int cookie, String fileName)
-        throws IOException {
+    @NonNull XmlBlock openXmlBlockAsset(int cookie, @NonNull String fileName) throws IOException {
+        Preconditions.checkNotNull(fileName, "fileName");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
+            ensureOpenLocked();
+            final long xmlBlock = nativeOpenXmlAsset(mObject, cookie, fileName);
+            if (xmlBlock == 0) {
+                throw new FileNotFoundException("Asset XML file: " + fileName);
             }
-            long xmlBlock = openXmlAssetNative(cookie, fileName);
-            if (xmlBlock != 0) {
-                XmlBlock res = new XmlBlock(this, xmlBlock);
-                incRefsLocked(res.hashCode());
-                return res;
-            }
+            final XmlBlock block = new XmlBlock(this, xmlBlock);
+            incRefsLocked(block.hashCode());
+            return block;
         }
-        throw new FileNotFoundException("Asset XML file: " + fileName);
     }
 
-    /*package*/ void xmlBlockGone(int id) {
+    void xmlBlockGone(int id) {
         synchronized (this) {
             decRefsLocked(id);
         }
     }
 
-    /*package*/ final long createTheme() {
+    void applyStyle(long themePtr, @AttrRes int defStyleAttr, @StyleRes int defStyleRes,
+            @Nullable XmlBlock.Parser parser, @NonNull int[] inAttrs, long outValuesAddress,
+            long outIndicesAddress) {
+        Preconditions.checkNotNull(inAttrs, "inAttrs");
         synchronized (this) {
-            if (!mOpen) {
-                throw new RuntimeException("Assetmanager has been closed");
-            }
-            long res = newTheme();
-            incRefsLocked(res);
-            return res;
+            // Need to synchronize on AssetManager because we will be accessing
+            // the native implementation of AssetManager.
+            ensureValidLocked();
+            nativeApplyStyle(mObject, themePtr, defStyleAttr, defStyleRes,
+                    parser != null ? parser.mParseState : 0, inAttrs, outValuesAddress,
+                    outIndicesAddress);
         }
     }
 
-    /*package*/ final void releaseTheme(long theme) {
+    boolean resolveAttrs(long themePtr, @AttrRes int defStyleAttr, @StyleRes int defStyleRes,
+            @Nullable int[] inValues, @NonNull int[] inAttrs, @NonNull int[] outValues,
+            @NonNull int[] outIndices) {
+        Preconditions.checkNotNull(inAttrs, "inAttrs");
+        Preconditions.checkNotNull(outValues, "outValues");
+        Preconditions.checkNotNull(outIndices, "outIndices");
         synchronized (this) {
-            deleteTheme(theme);
-            decRefsLocked(theme);
+            // Need to synchronize on AssetManager because we will be accessing
+            // the native implementation of AssetManager.
+            ensureValidLocked();
+            return nativeResolveAttrs(mObject,
+                    themePtr, defStyleAttr, defStyleRes, inValues, inAttrs, outValues, outIndices);
         }
     }
 
+    boolean retrieveAttributes(@NonNull XmlBlock.Parser parser, @NonNull int[] inAttrs,
+            @NonNull int[] outValues, @NonNull int[] outIndices) {
+        Preconditions.checkNotNull(parser, "parser");
+        Preconditions.checkNotNull(inAttrs, "inAttrs");
+        Preconditions.checkNotNull(outValues, "outValues");
+        Preconditions.checkNotNull(outIndices, "outIndices");
+        synchronized (this) {
+            // Need to synchronize on AssetManager because we will be accessing
+            // the native implementation of AssetManager.
+            ensureValidLocked();
+            return nativeRetrieveAttributes(
+                    mObject, parser.mParseState, inAttrs, outValues, outIndices);
+        }
+    }
+
+    long createTheme() {
+        synchronized (this) {
+            ensureValidLocked();
+            long themePtr = nativeThemeCreate(mObject);
+            incRefsLocked(themePtr);
+            return themePtr;
+        }
+    }
+
+    void releaseTheme(long themePtr) {
+        synchronized (this) {
+            nativeThemeDestroy(themePtr);
+            decRefsLocked(themePtr);
+        }
+    }
+
+    void applyStyleToTheme(long themePtr, @StyleRes int resId, boolean force) {
+        synchronized (this) {
+            // Need to synchronize on AssetManager because we will be accessing
+            // the native implementation of AssetManager.
+            ensureValidLocked();
+            nativeThemeApplyStyle(mObject, themePtr, resId, force);
+        }
+    }
+
+    @Override
     protected void finalize() throws Throwable {
-        try {
-            if (DEBUG_REFS && mNumRefs != 0) {
-                Log.w(TAG, "AssetManager " + this
-                        + " finalized with non-zero refs: " + mNumRefs);
-                if (mRefStacks != null) {
-                    for (RuntimeException e : mRefStacks.values()) {
-                        Log.w(TAG, "Reference from here", e);
-                    }
+        if (DEBUG_REFS && mNumRefs != 0) {
+            Log.w(TAG, "AssetManager " + this + " finalized with non-zero refs: " + mNumRefs);
+            if (mRefStacks != null) {
+                for (RuntimeException e : mRefStacks.values()) {
+                    Log.w(TAG, "Reference from here", e);
                 }
             }
-            destroy();
-        } finally {
-            super.finalize();
+        }
+
+        if (mObject != 0) {
+            nativeDestroy(mObject);
         }
     }
-    
+
+    /* No Locking is needed for AssetInputStream because an AssetInputStream is not-thread
+    safe and it does not rely on AssetManager once it has been created. It completely owns the
+    underlying Asset. */
     public final class AssetInputStream extends InputStream {
+        private long mAssetNativePtr;
+        private long mLength;
+        private long mMarkPos;
+
         /**
          * @hide
          */
         public final int getAssetInt() {
             throw new UnsupportedOperationException();
         }
+
         /**
          * @hide
          */
         public final long getNativeAsset() {
-            return mAsset;
+            return mAssetNativePtr;
         }
-        private AssetInputStream(long asset)
-        {
-            mAsset = asset;
-            mLength = getAssetLength(asset);
+
+        private AssetInputStream(long assetNativePtr) {
+            mAssetNativePtr = assetNativePtr;
+            mLength = nativeAssetGetLength(assetNativePtr);
         }
+
+        @Override
         public final int read() throws IOException {
-            return readAssetChar(mAsset);
+            ensureOpen();
+            return nativeAssetReadChar(mAssetNativePtr);
         }
-        public final boolean markSupported() {
-            return true;
+
+        @Override
+        public final int read(@NonNull byte[] b) throws IOException {
+            ensureOpen();
+            Preconditions.checkNotNull(b, "b");
+            return nativeAssetRead(mAssetNativePtr, b, 0, b.length);
         }
-        public final int available() throws IOException {
-            long len = getAssetRemainingLength(mAsset);
-            return len > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int)len;
+
+        @Override
+        public final int read(@NonNull byte[] b, int off, int len) throws IOException {
+            ensureOpen();
+            Preconditions.checkNotNull(b, "b");
+            return nativeAssetRead(mAssetNativePtr, b, off, len);
         }
-        public final void close() throws IOException {
-            synchronized (AssetManager.this) {
-                if (mAsset != 0) {
-                    destroyAsset(mAsset);
-                    mAsset = 0;
-                    decRefsLocked(hashCode());
-                }
-            }
-        }
-        public final void mark(int readlimit) {
-            mMarkPos = seekAsset(mAsset, 0, 0);
-        }
-        public final void reset() throws IOException {
-            seekAsset(mAsset, mMarkPos, -1);
-        }
-        public final int read(byte[] b) throws IOException {
-            return readAsset(mAsset, b, 0, b.length);
-        }
-        public final int read(byte[] b, int off, int len) throws IOException {
-            return readAsset(mAsset, b, off, len);
-        }
+
+        @Override
         public final long skip(long n) throws IOException {
-            long pos = seekAsset(mAsset, 0, 0);
-            if ((pos+n) > mLength) {
-                n = mLength-pos;
+            ensureOpen();
+            long pos = nativeAssetSeek(mAssetNativePtr, 0, 0);
+            if ((pos + n) > mLength) {
+                n = mLength - pos;
             }
             if (n > 0) {
-                seekAsset(mAsset, n, 0);
+                nativeAssetSeek(mAssetNativePtr, n, 0);
             }
             return n;
         }
 
-        protected void finalize() throws Throwable
-        {
+        @Override
+        public final int available() throws IOException {
+            ensureOpen();
+            final long len = nativeAssetGetRemainingLength(mAssetNativePtr);
+            return len > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) len;
+        }
+
+        @Override
+        public final boolean markSupported() {
+            return true;
+        }
+
+        @Override
+        public final void mark(int readlimit) {
+            ensureOpen();
+            mMarkPos = nativeAssetSeek(mAssetNativePtr, 0, 0);
+        }
+
+        @Override
+        public final void reset() throws IOException {
+            ensureOpen();
+            nativeAssetSeek(mAssetNativePtr, mMarkPos, -1);
+        }
+
+        @Override
+        public final void close() throws IOException {
+            if (mAssetNativePtr != 0) {
+                nativeAssetDestroy(mAssetNativePtr);
+                mAssetNativePtr = 0;
+
+                synchronized (AssetManager.this) {
+                    decRefsLocked(hashCode());
+                }
+            }
+        }
+
+        @Override
+        protected void finalize() throws Throwable {
             close();
         }
 
-        private long mAsset;
-        private long mLength;
-        private long mMarkPos;
-    }
-
-    /**
-     * Add an additional set of assets to the asset manager.  This can be
-     * either a directory or ZIP file.  Not for use by applications.  Returns
-     * the cookie of the added asset, or 0 on failure.
-     * {@hide}
-     */
-    public final int addAssetPath(String path) {
-        return  addAssetPathInternal(path, false);
-    }
-
-    /**
-     * Add an application assets to the asset manager and loading it as shared library.
-     * This can be either a directory or ZIP file.  Not for use by applications.  Returns
-     * the cookie of the added asset, or 0 on failure.
-     * {@hide}
-     */
-    public final int addAssetPathAsSharedLibrary(String path) {
-        return addAssetPathInternal(path, true);
-    }
-
-    private final int addAssetPathInternal(String path, boolean appAsLib) {
-        synchronized (this) {
-            int res = addAssetPathNative(path, appAsLib);
-            makeStringBlocks(mStringBlocks);
-            return res;
+        private void ensureOpen() {
+            if (mAssetNativePtr == 0) {
+                throw new IllegalStateException("AssetInputStream is closed");
+            }
         }
     }
 
-    private native final int addAssetPathNative(String path, boolean appAsLib);
-
-    /**
-     * Add an additional set of assets to the asset manager from an already open
-     * FileDescriptor.  Not for use by applications.
-     * This does not give full AssetManager functionality for these assets,
-     * since the origin of the file is not known for purposes of sharing,
-     * overlay resolution, and other features.  However it does allow you
-     * to do simple access to the contents of the given fd as an apk file.
-     * Performs a dup of the underlying fd, so you must take care of still closing
-     * the FileDescriptor yourself (and can do that whenever you want).
-     * Returns the cookie of the added asset, or 0 on failure.
-     * {@hide}
-     */
-    public int addAssetFd(FileDescriptor fd, String debugPathName) {
-        return addAssetFdInternal(fd, debugPathName, false);
-    }
-
-    private int addAssetFdInternal(FileDescriptor fd, String debugPathName,
-            boolean appAsLib) {
-        synchronized (this) {
-            int res = addAssetFdNative(fd, debugPathName, appAsLib);
-            makeStringBlocks(mStringBlocks);
-            return res;
-        }
-    }
-
-    private native int addAssetFdNative(FileDescriptor fd, String debugPathName,
-            boolean appAsLib);
-
-    /**
-     * Add a set of assets to overlay an already added set of assets.
-     *
-     * This is only intended for application resources. System wide resources
-     * are handled before any Java code is executed.
-     *
-     * {@hide}
-     */
-
-    public final int addOverlayPath(String idmapPath) {
-        synchronized (this) {
-            int res = addOverlayPathNative(idmapPath);
-            makeStringBlocks(mStringBlocks);
-            return res;
-        }
-    }
-
-    /**
-     * See addOverlayPath.
-     *
-     * {@hide}
-     */
-    public native final int addOverlayPathNative(String idmapPath);
-
-    /**
-     * Add multiple sets of assets to the asset manager at once.  See
-     * {@link #addAssetPath(String)} for more information.  Returns array of
-     * cookies for each added asset with 0 indicating failure, or null if
-     * the input array of paths is null.
-     * {@hide}
-     */
-    public final int[] addAssetPaths(String[] paths) {
-        if (paths == null) {
-            return null;
-        }
-
-        int[] cookies = new int[paths.length];
-        for (int i = 0; i < paths.length; i++) {
-            cookies[i] = addAssetPath(paths[i]);
-        }
-
-        return cookies;
-    }
-
     /**
      * Determine whether the state in this asset manager is up-to-date with
      * the files on the filesystem.  If false is returned, you need to
      * instantiate a new AssetManager class to see the new data.
-     * {@hide}
+     * @hide
      */
-    public native final boolean isUpToDate();
+    public boolean isUpToDate() {
+        for (ApkAssets apkAssets : getApkAssets()) {
+            if (!apkAssets.isUpToDate()) {
+                return false;
+            }
+        }
+        return true;
+    }
 
     /**
      * Get the locales that this asset manager contains data for.
@@ -784,7 +1071,12 @@
      * are of the form {@code ll_CC} where {@code ll} is a two letter language code,
      * and {@code CC} is a two letter country code.
      */
-    public native final String[] getLocales();
+    public String[] getLocales() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetLocales(mObject, false /*excludeSystem*/);
+        }
+    }
 
     /**
      * Same as getLocales(), except that locales that are only provided by the system (i.e. those
@@ -794,131 +1086,57 @@
      * assets support Cherokee and French, getLocales() would return
      * [Cherokee, English, French, German], while getNonSystemLocales() would return
      * [Cherokee, French].
-     * {@hide}
+     * @hide
      */
-    public native final String[] getNonSystemLocales();
-
-    /** {@hide} */
-    public native final Configuration[] getSizeConfigurations();
+    public String[] getNonSystemLocales() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetLocales(mObject, true /*excludeSystem*/);
+        }
+    }
 
     /**
-     * Change the configuation used when retrieving resources.  Not for use by
+     * @hide
+     */
+    Configuration[] getSizeConfigurations() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetSizeConfigurations(mObject);
+        }
+    }
+
+    /**
+     * Change the configuration used when retrieving resources.  Not for use by
      * applications.
-     * {@hide}
+     * @hide
      */
-    public native final void setConfiguration(int mcc, int mnc, String locale,
-            int orientation, int touchscreen, int density, int keyboard,
-            int keyboardHidden, int navigation, int screenWidth, int screenHeight,
-            int smallestScreenWidthDp, int screenWidthDp, int screenHeightDp,
-            int screenLayout, int uiMode, int colorMode, int majorVersion);
+    public void setConfiguration(int mcc, int mnc, @Nullable String locale, int orientation,
+            int touchscreen, int density, int keyboard, int keyboardHidden, int navigation,
+            int screenWidth, int screenHeight, int smallestScreenWidthDp, int screenWidthDp,
+            int screenHeightDp, int screenLayout, int uiMode, int colorMode, int majorVersion) {
+        synchronized (this) {
+            ensureValidLocked();
+            nativeSetConfiguration(mObject, mcc, mnc, locale, orientation, touchscreen, density,
+                    keyboard, keyboardHidden, navigation, screenWidth, screenHeight,
+                    smallestScreenWidthDp, screenWidthDp, screenHeightDp, screenLayout, uiMode,
+                    colorMode, majorVersion);
+        }
+    }
 
     /**
-     * Retrieve the resource identifier for the given resource name.
+     * @hide
      */
-    /*package*/ native final int getResourceIdentifier(String name,
-                                                       String defType,
-                                                       String defPackage);
+    public SparseArray<String> getAssignedPackageIdentifiers() {
+        synchronized (this) {
+            ensureValidLocked();
+            return nativeGetAssignedPackageIdentifiers(mObject);
+        }
+    }
 
-    /*package*/ native final String getResourceName(int resid);
-    /*package*/ native final String getResourcePackageName(int resid);
-    /*package*/ native final String getResourceTypeName(int resid);
-    /*package*/ native final String getResourceEntryName(int resid);
-    
-    private native final long openAsset(String fileName, int accessMode);
-    private final native ParcelFileDescriptor openAssetFd(String fileName,
-            long[] outOffsets) throws IOException;
-    private native final long openNonAssetNative(int cookie, String fileName,
-            int accessMode);
-    private native ParcelFileDescriptor openNonAssetFdNative(int cookie,
-            String fileName, long[] outOffsets) throws IOException;
-    private native final void destroyAsset(long asset);
-    private native final int readAssetChar(long asset);
-    private native final int readAsset(long asset, byte[] b, int off, int len);
-    private native final long seekAsset(long asset, long offset, int whence);
-    private native final long getAssetLength(long asset);
-    private native final long getAssetRemainingLength(long asset);
-
-    /** Returns true if the resource was found, filling in mRetStringBlock and
-     *  mRetData. */
-    private native final int loadResourceValue(int ident, short density, TypedValue outValue,
-            boolean resolve);
-    /** Returns true if the resource was found, filling in mRetStringBlock and
-     *  mRetData. */
-    private native final int loadResourceBagValue(int ident, int bagEntryId, TypedValue outValue,
-                                               boolean resolve);
-    /*package*/ static final int STYLE_NUM_ENTRIES = 6;
-    /*package*/ static final int STYLE_TYPE = 0;
-    /*package*/ static final int STYLE_DATA = 1;
-    /*package*/ static final int STYLE_ASSET_COOKIE = 2;
-    /*package*/ static final int STYLE_RESOURCE_ID = 3;
-
-    /* Offset within typed data array for native changingConfigurations. */
-    static final int STYLE_CHANGING_CONFIGURATIONS = 4;
-
-    /*package*/ static final int STYLE_DENSITY = 5;
-    /*package*/ native static final void applyStyle(long theme,
-            int defStyleAttr, int defStyleRes, long xmlParser,
-            int[] inAttrs, int length, long outValuesAddress, long outIndicesAddress);
-    /*package*/ native static final boolean resolveAttrs(long theme,
-            int defStyleAttr, int defStyleRes, int[] inValues,
-            int[] inAttrs, int[] outValues, int[] outIndices);
-    /*package*/ native final boolean retrieveAttributes(
-            long xmlParser, int[] inAttrs, int[] outValues, int[] outIndices);
-    /*package*/ native final int getArraySize(int resource);
-    /*package*/ native final int retrieveArray(int resource, int[] outValues);
-    private native final int getStringBlockCount();
-    private native final long getNativeStringBlock(int block);
-
-    /**
-     * {@hide}
-     */
-    public native final String getCookieName(int cookie);
-
-    /**
-     * {@hide}
-     */
-    public native final SparseArray<String> getAssignedPackageIdentifiers();
-
-    /**
-     * {@hide}
-     */
-    public native static final int getGlobalAssetCount();
-    
-    /**
-     * {@hide}
-     */
-    public native static final String getAssetAllocations();
-    
-    /**
-     * {@hide}
-     */
-    public native static final int getGlobalAssetManagerCount();
-    
-    private native final long newTheme();
-    private native final void deleteTheme(long theme);
-    /*package*/ native static final void applyThemeStyle(long theme, int styleRes, boolean force);
-    /*package*/ native static final void copyTheme(long dest, long source);
-    /*package*/ native static final void clearTheme(long theme);
-    /*package*/ native static final int loadThemeAttributeValue(long theme, int ident,
-                                                                TypedValue outValue,
-                                                                boolean resolve);
-    /*package*/ native static final void dumpTheme(long theme, int priority, String tag, String prefix);
-    /*package*/ native static final @NativeConfig int getThemeChangingConfigurations(long theme);
-
-    private native final long openXmlAssetNative(int cookie, String fileName);
-
-    private native final String[] getArrayStringResource(int arrayRes);
-    private native final int[] getArrayStringInfo(int arrayRes);
-    /*package*/ native final int[] getArrayIntResource(int arrayRes);
-    /*package*/ native final int[] getStyleAttributes(int themeRes);
-
-    private native final void init(boolean isSystem);
-    private native final void destroy();
-
-    private final void incRefsLocked(long id) {
+    private void incRefsLocked(long id) {
         if (DEBUG_REFS) {
             if (mRefStacks == null) {
-                mRefStacks = new HashMap<Long, RuntimeException>();
+                mRefStacks = new HashMap<>();
             }
             RuntimeException ex = new RuntimeException();
             ex.fillInStackTrace();
@@ -926,16 +1144,117 @@
         }
         mNumRefs++;
     }
-    
-    private final void decRefsLocked(long id) {
+
+    private void decRefsLocked(long id) {
         if (DEBUG_REFS && mRefStacks != null) {
             mRefStacks.remove(id);
         }
         mNumRefs--;
-        //System.out.println("Dec streams: mNumRefs=" + mNumRefs
-        //                   + " mReleased=" + mReleased);
-        if (mNumRefs == 0) {
-            destroy();
+        if (mNumRefs == 0 && mObject != 0) {
+            nativeDestroy(mObject);
+            mObject = 0;
         }
     }
+
+    // AssetManager setup native methods.
+    private static native long nativeCreate();
+    private static native void nativeDestroy(long ptr);
+    private static native void nativeSetApkAssets(long ptr, @NonNull ApkAssets[] apkAssets,
+            boolean invalidateCaches);
+    private static native void nativeSetConfiguration(long ptr, int mcc, int mnc,
+            @Nullable String locale, int orientation, int touchscreen, int density, int keyboard,
+            int keyboardHidden, int navigation, int screenWidth, int screenHeight,
+            int smallestScreenWidthDp, int screenWidthDp, int screenHeightDp, int screenLayout,
+            int uiMode, int colorMode, int majorVersion);
+    private static native @NonNull SparseArray<String> nativeGetAssignedPackageIdentifiers(
+            long ptr);
+
+    // File native methods.
+    private static native @Nullable String[] nativeList(long ptr, @NonNull String path)
+            throws IOException;
+    private static native long nativeOpenAsset(long ptr, @NonNull String fileName, int accessMode);
+    private static native @Nullable ParcelFileDescriptor nativeOpenAssetFd(long ptr,
+            @NonNull String fileName, long[] outOffsets) throws IOException;
+    private static native long nativeOpenNonAsset(long ptr, int cookie, @NonNull String fileName,
+            int accessMode);
+    private static native @Nullable ParcelFileDescriptor nativeOpenNonAssetFd(long ptr, int cookie,
+            @NonNull String fileName, @NonNull long[] outOffsets) throws IOException;
+    private static native long nativeOpenXmlAsset(long ptr, int cookie, @NonNull String fileName);
+
+    // Primitive resource native methods.
+    private static native int nativeGetResourceValue(long ptr, @AnyRes int resId, short density,
+            @NonNull TypedValue outValue, boolean resolveReferences);
+    private static native int nativeGetResourceBagValue(long ptr, @AnyRes int resId, int bagEntryId,
+            @NonNull TypedValue outValue);
+
+    private static native @Nullable @AttrRes int[] nativeGetStyleAttributes(long ptr,
+            @StyleRes int resId);
+    private static native @Nullable String[] nativeGetResourceStringArray(long ptr,
+            @ArrayRes int resId);
+    private static native @Nullable int[] nativeGetResourceStringArrayInfo(long ptr,
+            @ArrayRes int resId);
+    private static native @Nullable int[] nativeGetResourceIntArray(long ptr, @ArrayRes int resId);
+    private static native int nativeGetResourceArraySize(long ptr, @ArrayRes int resId);
+    private static native int nativeGetResourceArray(long ptr, @ArrayRes int resId,
+            @NonNull int[] outValues);
+
+    // Resource name/ID native methods.
+    private static native @AnyRes int nativeGetResourceIdentifier(long ptr, @NonNull String name,
+            @Nullable String defType, @Nullable String defPackage);
+    private static native @Nullable String nativeGetResourceName(long ptr, @AnyRes int resid);
+    private static native @Nullable String nativeGetResourcePackageName(long ptr,
+            @AnyRes int resid);
+    private static native @Nullable String nativeGetResourceTypeName(long ptr, @AnyRes int resid);
+    private static native @Nullable String nativeGetResourceEntryName(long ptr, @AnyRes int resid);
+    private static native @Nullable String[] nativeGetLocales(long ptr, boolean excludeSystem);
+    private static native @Nullable Configuration[] nativeGetSizeConfigurations(long ptr);
+
+    // Style attribute retrieval native methods.
+    private static native void nativeApplyStyle(long ptr, long themePtr, @AttrRes int defStyleAttr,
+            @StyleRes int defStyleRes, long xmlParserPtr, @NonNull int[] inAttrs,
+            long outValuesAddress, long outIndicesAddress);
+    private static native boolean nativeResolveAttrs(long ptr, long themePtr,
+            @AttrRes int defStyleAttr, @StyleRes int defStyleRes, @Nullable int[] inValues,
+            @NonNull int[] inAttrs, @NonNull int[] outValues, @NonNull int[] outIndices);
+    private static native boolean nativeRetrieveAttributes(long ptr, long xmlParserPtr,
+            @NonNull int[] inAttrs, @NonNull int[] outValues, @NonNull int[] outIndices);
+
+    // Theme related native methods
+    private static native long nativeThemeCreate(long ptr);
+    private static native void nativeThemeDestroy(long themePtr);
+    private static native void nativeThemeApplyStyle(long ptr, long themePtr, @StyleRes int resId,
+            boolean force);
+    static native void nativeThemeCopy(long destThemePtr, long sourceThemePtr);
+    static native void nativeThemeClear(long themePtr);
+    private static native int nativeThemeGetAttributeValue(long ptr, long themePtr,
+            @AttrRes int resId, @NonNull TypedValue outValue, boolean resolve);
+    private static native void nativeThemeDump(long ptr, long themePtr, int priority, String tag,
+            String prefix);
+    static native @NativeConfig int nativeThemeGetChangingConfigurations(long themePtr);
+
+    // AssetInputStream related native methods.
+    private static native void nativeAssetDestroy(long assetPtr);
+    private static native int nativeAssetReadChar(long assetPtr);
+    private static native int nativeAssetRead(long assetPtr, byte[] b, int off, int len);
+    private static native long nativeAssetSeek(long assetPtr, long offset, int whence);
+    private static native long nativeAssetGetLength(long assetPtr);
+    private static native long nativeAssetGetRemainingLength(long assetPtr);
+
+    private static native void nativeVerifySystemIdmaps();
+
+    // Global debug native methods.
+    /**
+     * @hide
+     */
+    public static native int getGlobalAssetCount();
+
+    /**
+     * @hide
+     */
+    public static native String getAssetAllocations();
+
+    /**
+     * @hide
+     */
+    public static native int getGlobalAssetManagerCount();
 }
diff --git a/core/java/android/content/res/Resources.java b/core/java/android/content/res/Resources.java
index e173653c..8f58891 100644
--- a/core/java/android/content/res/Resources.java
+++ b/core/java/android/content/res/Resources.java
@@ -590,7 +590,7 @@
      */
     @NonNull
     public int[] getIntArray(@ArrayRes int id) throws NotFoundException {
-        int[] res = mResourcesImpl.getAssets().getArrayIntResource(id);
+        int[] res = mResourcesImpl.getAssets().getResourceIntArray(id);
         if (res != null) {
             return res;
         }
@@ -613,13 +613,13 @@
     @NonNull
     public TypedArray obtainTypedArray(@ArrayRes int id) throws NotFoundException {
         final ResourcesImpl impl = mResourcesImpl;
-        int len = impl.getAssets().getArraySize(id);
+        int len = impl.getAssets().getResourceArraySize(id);
         if (len < 0) {
             throw new NotFoundException("Array resource ID #0x" + Integer.toHexString(id));
         }
         
         TypedArray array = TypedArray.obtain(this, len);
-        array.mLength = impl.getAssets().retrieveArray(id, array.mData);
+        array.mLength = impl.getAssets().getResourceArray(id, array.mData);
         array.mIndices[0] = 0;
         
         return array;
@@ -1789,8 +1789,7 @@
         // out the attributes from the XML file (applying type information
         // contained in the resources and such).
         XmlBlock.Parser parser = (XmlBlock.Parser)set;
-        mResourcesImpl.getAssets().retrieveAttributes(parser.mParseState, attrs,
-                array.mData, array.mIndices);
+        mResourcesImpl.getAssets().retrieveAttributes(parser, attrs, array.mData, array.mIndices);
 
         array.mXml = parser;
 
diff --git a/core/java/android/content/res/ResourcesImpl.java b/core/java/android/content/res/ResourcesImpl.java
index 97cb78b..2a4b278 100644
--- a/core/java/android/content/res/ResourcesImpl.java
+++ b/core/java/android/content/res/ResourcesImpl.java
@@ -168,7 +168,6 @@
         mDisplayAdjustments = displayAdjustments;
         mConfiguration.setToDefaults();
         updateConfiguration(config, metrics, displayAdjustments.getCompatibilityInfo());
-        mAssets.ensureStringBlocks();
     }
 
     public DisplayAdjustments getDisplayAdjustments() {
@@ -1274,8 +1273,7 @@
 
         void applyStyle(int resId, boolean force) {
             synchronized (mKey) {
-                AssetManager.applyThemeStyle(mTheme, resId, force);
-
+                mAssets.applyStyleToTheme(mTheme, resId, force);
                 mThemeResId = resId;
                 mKey.append(resId, force);
             }
@@ -1284,7 +1282,7 @@
         void setTo(ThemeImpl other) {
             synchronized (mKey) {
                 synchronized (other.mKey) {
-                    AssetManager.copyTheme(mTheme, other.mTheme);
+                    AssetManager.nativeThemeCopy(mTheme, other.mTheme);
 
                     mThemeResId = other.mThemeResId;
                     mKey.setTo(other.getKey());
@@ -1307,12 +1305,10 @@
                 // out the attributes from the XML file (applying type information
                 // contained in the resources and such).
                 final XmlBlock.Parser parser = (XmlBlock.Parser) set;
-                AssetManager.applyStyle(mTheme, defStyleAttr, defStyleRes,
-                        parser != null ? parser.mParseState : 0,
-                        attrs, attrs.length, array.mDataAddress, array.mIndicesAddress);
+                mAssets.applyStyle(mTheme, defStyleAttr, defStyleRes, parser, attrs,
+                        array.mDataAddress, array.mIndicesAddress);
                 array.mTheme = wrapper;
                 array.mXml = parser;
-
                 return array;
             }
         }
@@ -1329,7 +1325,7 @@
                 }
 
                 final TypedArray array = TypedArray.obtain(wrapper.getResources(), len);
-                AssetManager.resolveAttrs(mTheme, 0, 0, values, attrs, array.mData, array.mIndices);
+                mAssets.resolveAttrs(mTheme, 0, 0, values, attrs, array.mData, array.mIndices);
                 array.mTheme = wrapper;
                 array.mXml = null;
                 return array;
@@ -1349,14 +1345,14 @@
         @Config int getChangingConfigurations() {
             synchronized (mKey) {
                 final @NativeConfig int nativeChangingConfig =
-                        AssetManager.getThemeChangingConfigurations(mTheme);
+                        AssetManager.nativeThemeGetChangingConfigurations(mTheme);
                 return ActivityInfo.activityInfoConfigNativeToJava(nativeChangingConfig);
             }
         }
 
         public void dump(int priority, String tag, String prefix) {
             synchronized (mKey) {
-                AssetManager.dumpTheme(mTheme, priority, tag, prefix);
+                mAssets.dumpTheme(mTheme, priority, tag, prefix);
             }
         }
 
@@ -1385,13 +1381,13 @@
          */
         void rebase() {
             synchronized (mKey) {
-                AssetManager.clearTheme(mTheme);
+                AssetManager.nativeThemeClear(mTheme);
 
                 // Reapply the same styles in the same order.
                 for (int i = 0; i < mKey.mCount; i++) {
                     final int resId = mKey.mResId[i];
                     final boolean force = mKey.mForce[i];
-                    AssetManager.applyThemeStyle(mTheme, resId, force);
+                    mAssets.applyStyleToTheme(mTheme, resId, force);
                 }
             }
         }
diff --git a/core/java/android/content/res/TypedArray.java b/core/java/android/content/res/TypedArray.java
index f33c751..cbb3c6d 100644
--- a/core/java/android/content/res/TypedArray.java
+++ b/core/java/android/content/res/TypedArray.java
@@ -61,6 +61,15 @@
         return attrs;
     }
 
+    // STYLE_ prefixed constants are offsets within the typed data array.
+    static final int STYLE_NUM_ENTRIES = 6;
+    static final int STYLE_TYPE = 0;
+    static final int STYLE_DATA = 1;
+    static final int STYLE_ASSET_COOKIE = 2;
+    static final int STYLE_RESOURCE_ID = 3;
+    static final int STYLE_CHANGING_CONFIGURATIONS = 4;
+    static final int STYLE_DENSITY = 5;
+
     private final Resources mResources;
     private DisplayMetrics mMetrics;
     private AssetManager mAssets;
@@ -78,7 +87,7 @@
 
     private void resize(int len) {
         mLength = len;
-        final int dataLen = len * AssetManager.STYLE_NUM_ENTRIES;
+        final int dataLen = len * STYLE_NUM_ENTRIES;
         final int indicesLen = len + 1;
         final VMRuntime runtime = VMRuntime.getRuntime();
         if (mDataAddress == 0 || mData.length < dataLen) {
@@ -166,9 +175,9 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return null;
         } else if (type == TypedValue.TYPE_STRING) {
@@ -203,9 +212,9 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return null;
         } else if (type == TypedValue.TYPE_STRING) {
@@ -242,14 +251,13 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_STRING) {
-            final int cookie = data[index+AssetManager.STYLE_ASSET_COOKIE];
+            final int cookie = data[index + STYLE_ASSET_COOKIE];
             if (cookie < 0) {
-                return mXml.getPooledString(
-                    data[index+AssetManager.STYLE_DATA]).toString();
+                return mXml.getPooledString(data[index + STYLE_DATA]).toString();
             }
         }
         return null;
@@ -274,11 +282,11 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         final @Config int changingConfigs = ActivityInfo.activityInfoConfigNativeToJava(
-                data[index + AssetManager.STYLE_CHANGING_CONFIGURATIONS]);
+                data[index + STYLE_CHANGING_CONFIGURATIONS]);
         if ((changingConfigs & ~allowedChangingConfigs) != 0) {
             return null;
         }
@@ -320,14 +328,14 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA] != 0;
+            return data[index + STYLE_DATA] != 0;
         }
 
         final TypedValue v = mValue;
@@ -359,14 +367,14 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         }
 
         final TypedValue v = mValue;
@@ -396,16 +404,16 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type == TypedValue.TYPE_FLOAT) {
-            return Float.intBitsToFloat(data[index+AssetManager.STYLE_DATA]);
+            return Float.intBitsToFloat(data[index + STYLE_DATA]);
         } else if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         }
 
         final TypedValue v = mValue;
@@ -446,15 +454,15 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         } else if (type == TypedValue.TYPE_STRING) {
             final TypedValue value = mValue;
             if (getValueAt(index, value)) {
@@ -498,7 +506,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             if (value.type == TypedValue.TYPE_ATTRIBUTE) {
                 throw new UnsupportedOperationException(
                         "Failed to resolve attribute at index " + index + ": " + value);
@@ -533,7 +541,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             if (value.type == TypedValue.TYPE_ATTRIBUTE) {
                 throw new UnsupportedOperationException(
                         "Failed to resolve attribute at index " + index + ": " + value);
@@ -564,15 +572,15 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -612,15 +620,14 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type == TypedValue.TYPE_DIMENSION) {
-            return TypedValue.complexToDimension(
-                    data[index + AssetManager.STYLE_DATA], mMetrics);
+            return TypedValue.complexToDimension(data[index + STYLE_DATA], mMetrics);
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -661,15 +668,14 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type == TypedValue.TYPE_DIMENSION) {
-            return TypedValue.complexToDimensionPixelOffset(
-                    data[index + AssetManager.STYLE_DATA], mMetrics);
+            return TypedValue.complexToDimensionPixelOffset(data[index + STYLE_DATA], mMetrics);
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -711,15 +717,14 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type == TypedValue.TYPE_DIMENSION) {
-            return TypedValue.complexToDimensionPixelSize(
-                data[index+AssetManager.STYLE_DATA], mMetrics);
+            return TypedValue.complexToDimensionPixelSize(data[index + STYLE_DATA], mMetrics);
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -755,16 +760,15 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         } else if (type == TypedValue.TYPE_DIMENSION) {
-            return TypedValue.complexToDimensionPixelSize(
-                data[index+AssetManager.STYLE_DATA], mMetrics);
+            return TypedValue.complexToDimensionPixelSize(data[index + STYLE_DATA], mMetrics);
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -795,15 +799,14 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type >= TypedValue.TYPE_FIRST_INT
                 && type <= TypedValue.TYPE_LAST_INT) {
-            return data[index+AssetManager.STYLE_DATA];
+            return data[index + STYLE_DATA];
         } else if (type == TypedValue.TYPE_DIMENSION) {
-            return TypedValue.complexToDimensionPixelSize(
-                    data[index + AssetManager.STYLE_DATA], mMetrics);
+            return TypedValue.complexToDimensionPixelSize(data[index + STYLE_DATA], mMetrics);
         }
 
         return defValue;
@@ -833,15 +836,14 @@
         }
 
         final int attrIndex = index;
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
 
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return defValue;
         } else if (type == TypedValue.TYPE_FRACTION) {
-            return TypedValue.complexToFraction(
-                data[index+AssetManager.STYLE_DATA], base, pbase);
+            return TypedValue.complexToFraction(data[index + STYLE_DATA], base, pbase);
         } else if (type == TypedValue.TYPE_ATTRIBUTE) {
             final TypedValue value = mValue;
             getValueAt(index, value);
@@ -874,10 +876,10 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        if (data[index+AssetManager.STYLE_TYPE] != TypedValue.TYPE_NULL) {
-            final int resid = data[index+AssetManager.STYLE_RESOURCE_ID];
+        if (data[index + STYLE_TYPE] != TypedValue.TYPE_NULL) {
+            final int resid = data[index + STYLE_RESOURCE_ID];
             if (resid != 0) {
                 return resid;
             }
@@ -902,10 +904,10 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        if (data[index + AssetManager.STYLE_TYPE] == TypedValue.TYPE_ATTRIBUTE) {
-            return data[index + AssetManager.STYLE_DATA];
+        if (data[index + STYLE_TYPE] == TypedValue.TYPE_ATTRIBUTE) {
+            return data[index + STYLE_DATA];
         }
         return defValue;
     }
@@ -939,7 +941,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             if (value.type == TypedValue.TYPE_ATTRIBUTE) {
                 throw new UnsupportedOperationException(
                         "Failed to resolve attribute at index " + index + ": " + value);
@@ -975,7 +977,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             if (value.type == TypedValue.TYPE_ATTRIBUTE) {
                 throw new UnsupportedOperationException(
                         "Failed to resolve attribute at index " + index + ": " + value);
@@ -1006,7 +1008,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             return mResources.getTextArray(value.resourceId);
         }
         return null;
@@ -1027,7 +1029,7 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        return getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, outValue);
+        return getValueAt(index * STYLE_NUM_ENTRIES, outValue);
     }
 
     /**
@@ -1043,8 +1045,8 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
-        return mData[index + AssetManager.STYLE_TYPE];
+        index *= STYLE_NUM_ENTRIES;
+        return mData[index + STYLE_TYPE];
     }
 
     /**
@@ -1063,9 +1065,9 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         return type != TypedValue.TYPE_NULL;
     }
 
@@ -1084,11 +1086,11 @@
             throw new RuntimeException("Cannot make calls to a recycled instance!");
         }
 
-        index *= AssetManager.STYLE_NUM_ENTRIES;
+        index *= STYLE_NUM_ENTRIES;
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         return type != TypedValue.TYPE_NULL
-                || data[index+AssetManager.STYLE_DATA] == TypedValue.DATA_NULL_EMPTY;
+                || data[index + STYLE_DATA] == TypedValue.DATA_NULL_EMPTY;
     }
 
     /**
@@ -1109,7 +1111,7 @@
         }
 
         final TypedValue value = mValue;
-        if (getValueAt(index*AssetManager.STYLE_NUM_ENTRIES, value)) {
+        if (getValueAt(index * STYLE_NUM_ENTRIES, value)) {
             return value;
         }
         return null;
@@ -1181,16 +1183,16 @@
         final int[] data = mData;
         final int N = length();
         for (int i = 0; i < N; i++) {
-            final int index = i * AssetManager.STYLE_NUM_ENTRIES;
-            if (data[index + AssetManager.STYLE_TYPE] != TypedValue.TYPE_ATTRIBUTE) {
+            final int index = i * STYLE_NUM_ENTRIES;
+            if (data[index + STYLE_TYPE] != TypedValue.TYPE_ATTRIBUTE) {
                 // Not an attribute, ignore.
                 continue;
             }
 
             // Null the entry so that we can safely call getZzz().
-            data[index + AssetManager.STYLE_TYPE] = TypedValue.TYPE_NULL;
+            data[index + STYLE_TYPE] = TypedValue.TYPE_NULL;
 
-            final int attr = data[index + AssetManager.STYLE_DATA];
+            final int attr = data[index + STYLE_DATA];
             if (attr == 0) {
                 // Useless data, ignore.
                 continue;
@@ -1231,45 +1233,44 @@
         final int[] data = mData;
         final int N = length();
         for (int i = 0; i < N; i++) {
-            final int index = i * AssetManager.STYLE_NUM_ENTRIES;
-            final int type = data[index + AssetManager.STYLE_TYPE];
+            final int index = i * STYLE_NUM_ENTRIES;
+            final int type = data[index + STYLE_TYPE];
             if (type == TypedValue.TYPE_NULL) {
                 continue;
             }
             changingConfig |= ActivityInfo.activityInfoConfigNativeToJava(
-                    data[index + AssetManager.STYLE_CHANGING_CONFIGURATIONS]);
+                    data[index + STYLE_CHANGING_CONFIGURATIONS]);
         }
         return changingConfig;
     }
 
     private boolean getValueAt(int index, TypedValue outValue) {
         final int[] data = mData;
-        final int type = data[index+AssetManager.STYLE_TYPE];
+        final int type = data[index + STYLE_TYPE];
         if (type == TypedValue.TYPE_NULL) {
             return false;
         }
         outValue.type = type;
-        outValue.data = data[index+AssetManager.STYLE_DATA];
-        outValue.assetCookie = data[index+AssetManager.STYLE_ASSET_COOKIE];
-        outValue.resourceId = data[index+AssetManager.STYLE_RESOURCE_ID];
+        outValue.data = data[index + STYLE_DATA];
+        outValue.assetCookie = data[index + STYLE_ASSET_COOKIE];
+        outValue.resourceId = data[index + STYLE_RESOURCE_ID];
         outValue.changingConfigurations = ActivityInfo.activityInfoConfigNativeToJava(
-                data[index + AssetManager.STYLE_CHANGING_CONFIGURATIONS]);
-        outValue.density = data[index+AssetManager.STYLE_DENSITY];
+                data[index + STYLE_CHANGING_CONFIGURATIONS]);
+        outValue.density = data[index + STYLE_DENSITY];
         outValue.string = (type == TypedValue.TYPE_STRING) ? loadStringValueAt(index) : null;
         return true;
     }
 
     private CharSequence loadStringValueAt(int index) {
         final int[] data = mData;
-        final int cookie = data[index+AssetManager.STYLE_ASSET_COOKIE];
+        final int cookie = data[index + STYLE_ASSET_COOKIE];
         if (cookie < 0) {
             if (mXml != null) {
-                return mXml.getPooledString(
-                    data[index+AssetManager.STYLE_DATA]);
+                return mXml.getPooledString(data[index + STYLE_DATA]);
             }
             return null;
         }
-        return mAssets.getPooledStringForCookie(cookie, data[index+AssetManager.STYLE_DATA]);
+        return mAssets.getPooledStringForCookie(cookie, data[index + STYLE_DATA]);
     }
 
     /** @hide */
diff --git a/core/java/android/content/res/XmlBlock.java b/core/java/android/content/res/XmlBlock.java
index e6b95741..d4ccffb 100644
--- a/core/java/android/content/res/XmlBlock.java
+++ b/core/java/android/content/res/XmlBlock.java
@@ -16,6 +16,7 @@
 
 package android.content.res;
 
+import android.annotation.Nullable;
 import android.util.TypedValue;
 
 import com.android.internal.util.XmlUtils;
@@ -33,7 +34,7 @@
  * 
  * {@hide}
  */
-final class XmlBlock {
+final class XmlBlock implements AutoCloseable {
     private static final boolean DEBUG=false;
 
     public XmlBlock(byte[] data) {
@@ -48,6 +49,7 @@
         mStrings = new StringBlock(nativeGetStringBlock(mNative), false);
     }
 
+    @Override
     public void close() {
         synchronized (this) {
             if (mOpen) {
@@ -478,13 +480,13 @@
      *  are doing!  The given native object must exist for the entire lifetime
      *  of this newly creating XmlBlock.
      */
-    XmlBlock(AssetManager assets, long xmlBlock) {
+    XmlBlock(@Nullable AssetManager assets, long xmlBlock) {
         mAssets = assets;
         mNative = xmlBlock;
         mStrings = new StringBlock(nativeGetStringBlock(xmlBlock), false);
     }
 
-    private final AssetManager mAssets;
+    private @Nullable final AssetManager mAssets;
     private final long mNative;
     /*package*/ final StringBlock mStrings;
     private boolean mOpen = true;
diff --git a/core/java/android/hardware/camera2/TotalCaptureResult.java b/core/java/android/hardware/camera2/TotalCaptureResult.java
index 657745c..bae2d04 100644
--- a/core/java/android/hardware/camera2/TotalCaptureResult.java
+++ b/core/java/android/hardware/camera2/TotalCaptureResult.java
@@ -17,11 +17,14 @@
 package android.hardware.camera2;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.impl.CaptureResultExtras;
+import android.hardware.camera2.impl.PhysicalCaptureResultInfo;
 
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.HashMap;
 import java.util.List;
 
 /**
@@ -44,6 +47,12 @@
  * as {@link CaptureRequest#STATISTICS_FACE_DETECT_MODE}). Refer to each key documentation on
  * a case-by-case basis.</p>
  *
+ * <p>For a logical multi-camera device, if the CaptureRequest contains a surface for an underlying
+ * physical camera, the corresponding {@link TotalCaptureResult} object will include the metadata
+ * for that physical camera. And its keys and values can be accessed by
+ * {@link #getPhysicalCameraKey}. If all requested surfaces are for the logical camera, no
+ * metadata for physical camera will be included.</p>
+ *
  * <p>{@link TotalCaptureResult} objects are immutable.</p>
  *
  * @see CameraDevice.CaptureCallback#onCaptureCompleted
@@ -52,6 +61,8 @@
 
     private final List<CaptureResult> mPartialResults;
     private final int mSessionId;
+    // The map between physical camera id and capture result
+    private final HashMap<String, CameraMetadataNative> mPhysicalCaptureResults;
 
     /**
      * Takes ownership of the passed-in camera metadata and the partial results
@@ -60,7 +71,8 @@
      * @hide
      */
     public TotalCaptureResult(CameraMetadataNative results, CaptureRequest parent,
-            CaptureResultExtras extras, List<CaptureResult> partials, int sessionId) {
+            CaptureResultExtras extras, List<CaptureResult> partials, int sessionId,
+            PhysicalCaptureResultInfo physicalResults[]) {
         super(results, parent, extras);
 
         if (partials == null) {
@@ -70,6 +82,12 @@
         }
 
         mSessionId = sessionId;
+
+        mPhysicalCaptureResults = new HashMap<String, CameraMetadataNative>();
+        for (PhysicalCaptureResultInfo onePhysicalResult : physicalResults) {
+            mPhysicalCaptureResults.put(onePhysicalResult.getCameraId(),
+                    onePhysicalResult.getCameraMetadata());
+        }
     }
 
     /**
@@ -83,6 +101,7 @@
 
         mPartialResults = new ArrayList<>();
         mSessionId = CameraCaptureSession.SESSION_ID_NONE;
+        mPhysicalCaptureResults = new HashMap<String, CameraMetadataNative>();
     }
 
     /**
@@ -111,4 +130,38 @@
     public int getSessionId() {
         return mSessionId;
     }
+
+    /**
+     * Get a capture result field value for a particular physical camera id.
+     *
+     * <p>The field definitions can be found in {@link CaptureResult}.</p>
+     *
+     * <p>This function can be called for logical camera devices, which are devices that have
+     * REQUEST_AVAILABLE_CAPABILITIES_LOGICAL_MULTI_CAMERA capability and calls to {@link
+     * CameraCharacteristics#getPhysicalCameraIds} return a non-empty list of physical devices that
+     * are backing the logical camera. The camera id included in physicalCameraId argument
+     * selects an individual physical device, and returns its specific capture result field.</p>
+     *
+     * <p>This function should only be called if one or more streams from the underlying
+     * 'physicalCameraId' was requested by the corresponding capture request.</p>
+     *
+     * @throws IllegalArgumentException if the key was not valid, or the physicalCameraId is not
+     * applicable to the current camera, or a stream from 'physicalCameraId' is not requested by the
+     * corresponding capture request.
+     *
+     * @param key The result field to read.
+     * @param physicalCameraId The physical camera the result originates from.
+     *
+     * @return The value of that key, or {@code null} if the field is not set.
+     */
+    @Nullable
+    public <T> T getPhysicalCameraKey(Key<T> key, @NonNull String physicalCameraId) {
+        if (!mPhysicalCaptureResults.containsKey(physicalCameraId)) {
+            throw new IllegalArgumentException(
+                    "No TotalCaptureResult exists for physical camera " + physicalCameraId);
+        }
+
+        CameraMetadataNative physicalMetadata = mPhysicalCaptureResults.get(physicalCameraId);
+        return physicalMetadata.get(key);
+    }
 }
diff --git a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
index cab9d70..511fa43 100644
--- a/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
+++ b/core/java/android/hardware/camera2/impl/CameraDeviceImpl.java
@@ -1001,19 +1001,17 @@
                     throw new IllegalArgumentException("Null Surface targets are not allowed");
                 }
 
-                if (!request.isReprocess()) {
-                    continue;
-                }
                 for (int i = 0; i < mConfiguredOutputs.size(); i++) {
                     OutputConfiguration configuration = mConfiguredOutputs.valueAt(i);
                     if (configuration.isForPhysicalCamera()
                             && configuration.getSurfaces().contains(surface)) {
-                        throw new IllegalArgumentException(
-                                "Reprocess request on physical stream is not allowed");
+                        if (request.isReprocess()) {
+                            throw new IllegalArgumentException(
+                                    "Reprocess request on physical stream is not allowed");
+                        }
                     }
                 }
             }
-
         }
 
         synchronized(mInterfaceLock) {
@@ -1966,7 +1964,8 @@
 
         @Override
         public void onResultReceived(CameraMetadataNative result,
-                CaptureResultExtras resultExtras) throws RemoteException {
+                CaptureResultExtras resultExtras, PhysicalCaptureResultInfo physicalResults[])
+                throws RemoteException {
 
             int requestId = resultExtras.getRequestId();
             long frameNumber = resultExtras.getFrameNumber();
@@ -2073,7 +2072,8 @@
                             request.get(CaptureRequest.CONTROL_AE_TARGET_FPS_RANGE);
                     final int subsequenceId = resultExtras.getSubsequenceId();
                     final TotalCaptureResult resultAsCapture = new TotalCaptureResult(result,
-                            request, resultExtras, partialResults, holder.getSessionId());
+                            request, resultExtras, partialResults, holder.getSessionId(),
+                            physicalResults);
                     // Final capture result
                     resultDispatch = new Runnable() {
                         @Override
@@ -2088,9 +2088,11 @@
                                                 NANO_PER_SECOND/fpsRange.getUpper());
                                         CameraMetadataNative resultLocal =
                                                 new CameraMetadataNative(resultCopy);
+                                        // No logical multi-camera support for batched output mode.
                                         TotalCaptureResult resultInBatch = new TotalCaptureResult(
                                             resultLocal, holder.getRequest(i), resultExtras,
-                                            partialResults, holder.getSessionId());
+                                            partialResults, holder.getSessionId(),
+                                            new PhysicalCaptureResultInfo[0]);
 
                                         holder.getCallback().onCaptureCompleted(
                                             CameraDeviceImpl.this,
diff --git a/core/java/android/hardware/camera2/impl/PhysicalCaptureResultInfo.java b/core/java/android/hardware/camera2/impl/PhysicalCaptureResultInfo.java
new file mode 100644
index 0000000..30eaf13
--- /dev/null
+++ b/core/java/android/hardware/camera2/impl/PhysicalCaptureResultInfo.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.hardware.camera2.impl;
+
+import android.hardware.camera2.impl.CameraMetadataNative;
+
+import android.os.Parcel;
+import android.os.Parcelable;
+
+/**
+ * @hide
+ */
+public class PhysicalCaptureResultInfo implements Parcelable {
+    private String cameraId;
+    private CameraMetadataNative cameraMetadata;
+
+    public static final Parcelable.Creator<PhysicalCaptureResultInfo> CREATOR =
+            new Parcelable.Creator<PhysicalCaptureResultInfo>() {
+        @Override
+        public PhysicalCaptureResultInfo createFromParcel(Parcel in) {
+            return new PhysicalCaptureResultInfo(in);
+        }
+
+        @Override
+        public PhysicalCaptureResultInfo[] newArray(int size) {
+            return new PhysicalCaptureResultInfo[size];
+        }
+    };
+
+    private PhysicalCaptureResultInfo(Parcel in) {
+        readFromParcel(in);
+    }
+
+    public PhysicalCaptureResultInfo(String cameraId, CameraMetadataNative cameraMetadata) {
+        this.cameraId = cameraId;
+        this.cameraMetadata = cameraMetadata;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeString(cameraId);
+        cameraMetadata.writeToParcel(dest, flags);
+    }
+
+    public void readFromParcel(Parcel in) {
+        cameraId = in.readString();
+        cameraMetadata = new CameraMetadataNative();
+        cameraMetadata.readFromParcel(in);
+    }
+
+    public String getCameraId() {
+        return cameraId;
+    }
+
+    public CameraMetadataNative getCameraMetadata() {
+        return cameraMetadata;
+    }
+}
diff --git a/core/java/android/hardware/camera2/legacy/CameraDeviceUserShim.java b/core/java/android/hardware/camera2/legacy/CameraDeviceUserShim.java
index eccab75..bc7b126 100644
--- a/core/java/android/hardware/camera2/legacy/CameraDeviceUserShim.java
+++ b/core/java/android/hardware/camera2/legacy/CameraDeviceUserShim.java
@@ -26,6 +26,7 @@
 import android.hardware.camera2.ICameraDeviceUser;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.impl.CaptureResultExtras;
+import android.hardware.camera2.impl.PhysicalCaptureResultInfo;
 import android.hardware.camera2.params.OutputConfiguration;
 import android.hardware.camera2.utils.SubmitInfo;
 import android.os.ConditionVariable;
@@ -249,7 +250,8 @@
 
         @Override
         public void onResultReceived(final CameraMetadataNative result,
-                final CaptureResultExtras resultExtras) {
+                final CaptureResultExtras resultExtras,
+                PhysicalCaptureResultInfo physicalResults[]) {
             Object[] resultArray = new Object[] { result, resultExtras };
             Message msg = getHandler().obtainMessage(RESULT_RECEIVED,
                     /*obj*/ resultArray);
@@ -320,7 +322,8 @@
                             Object[] resultArray = (Object[]) msg.obj;
                             CameraMetadataNative result = (CameraMetadataNative) resultArray[0];
                             CaptureResultExtras resultExtras = (CaptureResultExtras) resultArray[1];
-                            mCallbacks.onResultReceived(result, resultExtras);
+                            mCallbacks.onResultReceived(result, resultExtras,
+                                    new PhysicalCaptureResultInfo[0]);
                             break;
                         }
                         case PREPARED: {
diff --git a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
index cb59fd1..e7f2134 100644
--- a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
+++ b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
@@ -23,6 +23,7 @@
 import android.hardware.camera2.CaptureRequest;
 import android.hardware.camera2.impl.CameraDeviceImpl;
 import android.hardware.camera2.impl.CaptureResultExtras;
+import android.hardware.camera2.impl.PhysicalCaptureResultInfo;
 import android.hardware.camera2.ICameraDeviceCallbacks;
 import android.hardware.camera2.params.StreamConfigurationMap;
 import android.hardware.camera2.utils.ArrayUtils;
@@ -253,7 +254,8 @@
                                 holder.getRequestId());
                     }
                     try {
-                        mDeviceCallbacks.onResultReceived(result, extras);
+                        mDeviceCallbacks.onResultReceived(result, extras,
+                                new PhysicalCaptureResultInfo[0]);
                     } catch (RemoteException e) {
                         throw new IllegalStateException(
                                 "Received remote exception during onCameraError callback: ", e);
diff --git a/core/java/android/hardware/display/DisplayManager.java b/core/java/android/hardware/display/DisplayManager.java
index 36673cd..4de4880 100644
--- a/core/java/android/hardware/display/DisplayManager.java
+++ b/core/java/android/hardware/display/DisplayManager.java
@@ -656,6 +656,34 @@
     }
 
     /**
+     * Temporarily sets the brightness of the display.
+     * <p>
+     * Requires the {@link android.Manifest.permission#CONTROL_DISPLAY_BRIGHTNESS} permission.
+     * </p>
+     *
+     * @param brightness The brightness value from 0 to 255.
+     *
+     * @hide Requires signature permission.
+     */
+    public void setTemporaryBrightness(int brightness) {
+        mGlobal.setTemporaryBrightness(brightness);
+    }
+
+    /**
+     * Temporarily sets the auto brightness adjustment factor.
+     * <p>
+     * Requires the {@link android.Manifest.permission#CONTROL_DISPLAY_BRIGHTNESS} permission.
+     * </p>
+     *
+     * @param adjustment The adjustment factor from -1.0 to 1.0.
+     *
+     * @hide Requires signature permission.
+     */
+    public void setTemporaryAutoBrightnessAdjustment(float adjustment) {
+        mGlobal.setTemporaryAutoBrightnessAdjustment(adjustment);
+    }
+
+    /**
      * Listens for changes in available display devices.
      */
     public interface DisplayListener {
diff --git a/core/java/android/hardware/display/DisplayManagerGlobal.java b/core/java/android/hardware/display/DisplayManagerGlobal.java
index 9c851f1..2d5f5e0 100644
--- a/core/java/android/hardware/display/DisplayManagerGlobal.java
+++ b/core/java/android/hardware/display/DisplayManagerGlobal.java
@@ -489,6 +489,42 @@
         }
     }
 
+    /**
+     * Temporarily sets the brightness of the display.
+     * <p>
+     * Requires the {@link android.Manifest.permission#CONTROL_DISPLAY_BRIGHTNESS} permission.
+     * </p>
+     *
+     * @param brightness The brightness value from 0 to 255.
+     *
+     * @hide Requires signature permission.
+     */
+    public void setTemporaryBrightness(int brightness) {
+        try {
+            mDm.setTemporaryBrightness(brightness);
+        } catch (RemoteException ex) {
+            throw ex.rethrowFromSystemServer();
+        }
+    }
+
+    /**
+     * Temporarily sets the auto brightness adjustment factor.
+     * <p>
+     * Requires the {@link android.Manifest.permission#CONTROL_DISPLAY_BRIGHTNESS} permission.
+     * </p>
+     *
+     * @param adjustment The adjustment factor from -1.0 to 1.0.
+     *
+     * @hide Requires signature permission.
+     */
+    public void setTemporaryAutoBrightnessAdjustment(float adjustment) {
+        try {
+            mDm.setTemporaryAutoBrightnessAdjustment(adjustment);
+        } catch (RemoteException ex) {
+            throw ex.rethrowFromSystemServer();
+        }
+    }
+
     private final class DisplayManagerCallback extends IDisplayManagerCallback.Stub {
         @Override
         public void onDisplayEvent(int displayId, int event) {
diff --git a/core/java/android/hardware/display/DisplayManagerInternal.java b/core/java/android/hardware/display/DisplayManagerInternal.java
index 078958a..1cfad4f 100644
--- a/core/java/android/hardware/display/DisplayManagerInternal.java
+++ b/core/java/android/hardware/display/DisplayManagerInternal.java
@@ -214,23 +214,12 @@
         // nearby, turning it off temporarily until the object is moved away.
         public boolean useProximitySensor;
 
-        // The desired screen brightness in the range 0 (minimum / off) to 255 (brightest).
-        // The display power controller may choose to clamp the brightness.
-        // When auto-brightness is enabled, this field should specify a nominal default
-        // value to use while waiting for the light sensor to report enough data.
-        public int screenBrightness;
+        // An override of the screen brightness. Set to -1 is used if there's no override.
+        public int screenBrightnessOverride;
 
-        // The screen auto-brightness adjustment factor in the range -1 (dimmer) to 1 (brighter).
-        public float screenAutoBrightnessAdjustment;
-
-        // Set to true if screenBrightness and screenAutoBrightnessAdjustment were both
-        // set by the user as opposed to being programmatically controlled by apps.
-        public boolean brightnessSetByUser;
-
-        // Set to true if screenBrightness or screenAutoBrightnessAdjustment are being set
-        // temporarily. This is typically set while the user has their finger on the brightness
-        // control, before they've selected the final brightness value.
-        public boolean brightnessIsTemporary;
+        // An override of the screen auto-brightness adjustment factor in the range -1 (dimmer) to
+        // 1 (brighter). Set to Float.NaN if there's no override.
+        public float screenAutoBrightnessAdjustmentOverride;
 
         // If true, enables automatic brightness control.
         public boolean useAutoBrightness;
@@ -262,10 +251,10 @@
         public DisplayPowerRequest() {
             policy = POLICY_BRIGHT;
             useProximitySensor = false;
-            screenBrightness = PowerManager.BRIGHTNESS_ON;
-            screenAutoBrightnessAdjustment = 0.0f;
-            screenLowPowerBrightnessFactor = 0.5f;
+            screenBrightnessOverride = -1;
             useAutoBrightness = false;
+            screenAutoBrightnessAdjustmentOverride = Float.NaN;
+            screenLowPowerBrightnessFactor = 0.5f;
             blockScreenOn = false;
             dozeScreenBrightness = PowerManager.BRIGHTNESS_DEFAULT;
             dozeScreenState = Display.STATE_UNKNOWN;
@@ -286,12 +275,10 @@
         public void copyFrom(DisplayPowerRequest other) {
             policy = other.policy;
             useProximitySensor = other.useProximitySensor;
-            screenBrightness = other.screenBrightness;
-            screenAutoBrightnessAdjustment = other.screenAutoBrightnessAdjustment;
-            screenLowPowerBrightnessFactor = other.screenLowPowerBrightnessFactor;
-            brightnessSetByUser = other.brightnessSetByUser;
-            brightnessIsTemporary = other.brightnessIsTemporary;
+            screenBrightnessOverride = other.screenBrightnessOverride;
             useAutoBrightness = other.useAutoBrightness;
+            screenAutoBrightnessAdjustmentOverride = other.screenAutoBrightnessAdjustmentOverride;
+            screenLowPowerBrightnessFactor = other.screenLowPowerBrightnessFactor;
             blockScreenOn = other.blockScreenOn;
             lowPowerMode = other.lowPowerMode;
             boostScreenBrightness = other.boostScreenBrightness;
@@ -309,13 +296,12 @@
             return other != null
                     && policy == other.policy
                     && useProximitySensor == other.useProximitySensor
-                    && screenBrightness == other.screenBrightness
-                    && screenAutoBrightnessAdjustment == other.screenAutoBrightnessAdjustment
+                    && screenBrightnessOverride == other.screenBrightnessOverride
+                    && useAutoBrightness == other.useAutoBrightness
+                    && floatEquals(screenAutoBrightnessAdjustmentOverride,
+                            other.screenAutoBrightnessAdjustmentOverride)
                     && screenLowPowerBrightnessFactor
                     == other.screenLowPowerBrightnessFactor
-                    && brightnessSetByUser == other.brightnessSetByUser
-                    && brightnessIsTemporary == other.brightnessIsTemporary
-                    && useAutoBrightness == other.useAutoBrightness
                     && blockScreenOn == other.blockScreenOn
                     && lowPowerMode == other.lowPowerMode
                     && boostScreenBrightness == other.boostScreenBrightness
@@ -323,6 +309,10 @@
                     && dozeScreenState == other.dozeScreenState;
         }
 
+        private boolean floatEquals(float f1, float f2) {
+            return f1 == f2 || Float.isNaN(f1) && Float.isNaN(f2);
+        }
+
         @Override
         public int hashCode() {
             return 0; // don't care
@@ -332,12 +322,11 @@
         public String toString() {
             return "policy=" + policyToString(policy)
                     + ", useProximitySensor=" + useProximitySensor
-                    + ", screenBrightness=" + screenBrightness
-                    + ", screenAutoBrightnessAdjustment=" + screenAutoBrightnessAdjustment
-                    + ", screenLowPowerBrightnessFactor=" + screenLowPowerBrightnessFactor
-                    + ", brightnessSetByUser=" + brightnessSetByUser
-                    + ", brightnessIsTemporary=" + brightnessIsTemporary
+                    + ", screenBrightnessOverride=" + screenBrightnessOverride
                     + ", useAutoBrightness=" + useAutoBrightness
+                    + ", screenAutoBrightnessAdjustmentOverride="
+                    + screenAutoBrightnessAdjustmentOverride
+                    + ", screenLowPowerBrightnessFactor=" + screenLowPowerBrightnessFactor
                     + ", blockScreenOn=" + blockScreenOn
                     + ", lowPowerMode=" + lowPowerMode
                     + ", boostScreenBrightness=" + boostScreenBrightness
diff --git a/core/java/android/hardware/display/IDisplayManager.aidl b/core/java/android/hardware/display/IDisplayManager.aidl
index 5b7b32f..13599cf 100644
--- a/core/java/android/hardware/display/IDisplayManager.aidl
+++ b/core/java/android/hardware/display/IDisplayManager.aidl
@@ -92,4 +92,10 @@
     // the same as the calling user.
     void setBrightnessConfigurationForUser(in BrightnessConfiguration c, int userId,
             String packageName);
+
+    // Temporarily sets the display brightness.
+    void setTemporaryBrightness(int brightness);
+
+    // Temporarily sets the auto brightness adjustment factor.
+    void setTemporaryAutoBrightnessAdjustment(float adjustment);
 }
diff --git a/core/java/android/hardware/radio/Announcement.aidl b/core/java/android/hardware/radio/Announcement.aidl
new file mode 100644
index 0000000..eeb5951
--- /dev/null
+++ b/core/java/android/hardware/radio/Announcement.aidl
@@ -0,0 +1,20 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio;
+
+/** @hide */
+parcelable Announcement;
diff --git a/core/java/android/hardware/radio/Announcement.java b/core/java/android/hardware/radio/Announcement.java
new file mode 100644
index 0000000..166fe60
--- /dev/null
+++ b/core/java/android/hardware/radio/Announcement.java
@@ -0,0 +1,133 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio;
+
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+import android.annotation.SystemApi;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Collection;
+import java.util.Map;
+import java.util.Objects;
+
+/**
+ * @hide
+ */
+@SystemApi
+public final class Announcement implements Parcelable {
+
+    /** DAB alarm, RDS emergency program type (PTY 31). */
+    public static final int TYPE_EMERGENCY = 1;
+    /** DAB warning. */
+    public static final int TYPE_WARNING = 2;
+    /** DAB road traffic, RDS TA, HD Radio transportation. */
+    public static final int TYPE_TRAFFIC = 3;
+    /** Weather. */
+    public static final int TYPE_WEATHER = 4;
+    /** News. */
+    public static final int TYPE_NEWS = 5;
+    /** DAB event, special event. */
+    public static final int TYPE_EVENT = 6;
+    /** DAB sport report, RDS sports. */
+    public static final int TYPE_SPORT = 7;
+    /** All others. */
+    public static final int TYPE_MISC = 8;
+    /** @hide */
+    @IntDef(prefix = { "TYPE_" }, value = {
+        TYPE_EMERGENCY,
+        TYPE_WARNING,
+        TYPE_TRAFFIC,
+        TYPE_WEATHER,
+        TYPE_NEWS,
+        TYPE_EVENT,
+        TYPE_SPORT,
+        TYPE_MISC,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Type {}
+
+    /**
+     * Listener of announcement list events.
+     */
+    public interface OnListUpdatedListener {
+        /**
+         * An event called whenever a list of active announcements change.
+         *
+         * The entire list is sent each time a new announcement appears or any ends broadcasting.
+         *
+         * @param activeAnnouncements a full list of active announcements
+         */
+        void onListUpdated(Collection<Announcement> activeAnnouncements);
+    }
+
+    @NonNull private final ProgramSelector mSelector;
+    @Type private final int mType;
+    @NonNull private final Map<String, String> mVendorInfo;
+
+    /** @hide */
+    public Announcement(@NonNull ProgramSelector selector, @Type int type,
+            @NonNull Map<String, String> vendorInfo) {
+        mSelector = Objects.requireNonNull(selector);
+        mType = Objects.requireNonNull(type);
+        mVendorInfo = Objects.requireNonNull(vendorInfo);
+    }
+
+    private Announcement(@NonNull Parcel in) {
+        mSelector = in.readTypedObject(ProgramSelector.CREATOR);
+        mType = in.readInt();
+        mVendorInfo = Utils.readStringMap(in);
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeTypedObject(mSelector, 0);
+        dest.writeInt(mType);
+        Utils.writeStringMap(dest, mVendorInfo);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public static final Parcelable.Creator<Announcement> CREATOR =
+            new Parcelable.Creator<Announcement>() {
+        public Announcement createFromParcel(Parcel in) {
+            return new Announcement(in);
+        }
+
+        public Announcement[] newArray(int size) {
+            return new Announcement[size];
+        }
+    };
+
+    public @NonNull ProgramSelector getSelector() {
+        return mSelector;
+    }
+
+    public @Type int getType() {
+        return mType;
+    }
+
+    public @NonNull Map<String, String> getVendorInfo() {
+        return mVendorInfo;
+    }
+}
diff --git a/core/java/android/hardware/radio/IAnnouncementListener.aidl b/core/java/android/hardware/radio/IAnnouncementListener.aidl
new file mode 100644
index 0000000..b4d974a
--- /dev/null
+++ b/core/java/android/hardware/radio/IAnnouncementListener.aidl
@@ -0,0 +1,24 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio;
+
+import android.hardware.radio.Announcement;
+
+/** {@hide} */
+oneway interface IAnnouncementListener {
+    void onListUpdated(in List<Announcement> activeAnnouncements);
+}
diff --git a/core/java/android/hardware/radio/ICloseHandle.aidl b/core/java/android/hardware/radio/ICloseHandle.aidl
new file mode 100644
index 0000000..576c03b
--- /dev/null
+++ b/core/java/android/hardware/radio/ICloseHandle.aidl
@@ -0,0 +1,22 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio;
+
+/** {@hide} */
+interface ICloseHandle {
+    void close();
+}
diff --git a/core/java/android/hardware/radio/IRadioService.aidl b/core/java/android/hardware/radio/IRadioService.aidl
index c43fd26..9349cf7 100644
--- a/core/java/android/hardware/radio/IRadioService.aidl
+++ b/core/java/android/hardware/radio/IRadioService.aidl
@@ -16,6 +16,8 @@
 
 package android.hardware.radio;
 
+import android.hardware.radio.IAnnouncementListener;
+import android.hardware.radio.ICloseHandle;
 import android.hardware.radio.ITuner;
 import android.hardware.radio.ITunerCallback;
 import android.hardware.radio.RadioManager;
@@ -30,4 +32,7 @@
 
     ITuner openTuner(int moduleId, in RadioManager.BandConfig bandConfig, boolean withAudio,
             in ITunerCallback callback);
+
+    ICloseHandle addAnnouncementListener(in int[] enabledTypes,
+            in IAnnouncementListener listener);
 }
diff --git a/core/java/android/hardware/radio/ITuner.aidl b/core/java/android/hardware/radio/ITuner.aidl
index bf5e391..429f1f3 100644
--- a/core/java/android/hardware/radio/ITuner.aidl
+++ b/core/java/android/hardware/radio/ITuner.aidl
@@ -64,8 +64,6 @@
 
     void cancelAnnouncement();
 
-    RadioManager.ProgramInfo getProgramInformation();
-
     Bitmap getImage(int id);
 
     /**
@@ -92,6 +90,4 @@
      * @return Vendor-specific key-value pairs, must be Map<String, String>
      */
     Map getParameters(in List<String> keys);
-
-    boolean isAntennaConnected();
 }
diff --git a/core/java/android/hardware/radio/ITunerCallback.aidl b/core/java/android/hardware/radio/ITunerCallback.aidl
index 54af30f..b32daa5 100644
--- a/core/java/android/hardware/radio/ITunerCallback.aidl
+++ b/core/java/android/hardware/radio/ITunerCallback.aidl
@@ -17,12 +17,14 @@
 package android.hardware.radio;
 
 import android.hardware.radio.ProgramList;
+import android.hardware.radio.ProgramSelector;
 import android.hardware.radio.RadioManager;
 import android.hardware.radio.RadioMetadata;
 
 /** {@hide} */
 oneway interface ITunerCallback {
     void onError(int status);
+    void onTuneFailed(int result, in ProgramSelector selector);
     void onConfigurationChanged(in RadioManager.BandConfig config);
     void onCurrentProgramInfoChanged(in RadioManager.ProgramInfo info);
     void onTrafficAnnouncement(boolean active);
diff --git a/core/java/android/hardware/radio/ProgramSelector.java b/core/java/android/hardware/radio/ProgramSelector.java
index 0cf7605..0294a29 100644
--- a/core/java/android/hardware/radio/ProgramSelector.java
+++ b/core/java/android/hardware/radio/ProgramSelector.java
@@ -27,6 +27,7 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
 import java.util.stream.Stream;
@@ -363,6 +364,38 @@
     }
 
     /**
+     * Creates an equivalent ProgramSelector with a given secondary identifier preferred.
+     *
+     * Used to point to a specific physical identifier for technologies that may broadcast the same
+     * program on different channels. For example, with a DAB program broadcasted over multiple
+     * ensembles, the radio hardware may select the one with the strongest signal. The UI may select
+     * preferred ensemble though, so the radio hardware may try to use it in the first place.
+     *
+     * This is a best-effort hint for the tuner, not a guaranteed behavior.
+     *
+     * Setting the given secondary identifier as preferred means filtering out other secondary
+     * identifiers of its type and adding it to the list.
+     *
+     * @param preferred preferred secondary identifier
+     * @return a new ProgramSelector with a given secondary identifier preferred
+     */
+    public @NonNull ProgramSelector withSecondaryPreferred(@NonNull Identifier preferred) {
+        int preferredType = preferred.getType();
+        Identifier[] secondaryIds = Stream.concat(
+            // remove other identifiers of that type
+            Arrays.stream(mSecondaryIds).filter(id -> id.getType() != preferredType),
+            // add preferred identifier instead
+            Stream.of(preferred)).toArray(Identifier[]::new);
+
+        return new ProgramSelector(
+            mProgramType,
+            mPrimaryId,
+            secondaryIds,
+            mVendorIds
+        );
+    }
+
+    /**
      * Builds new ProgramSelector for AM/FM frequency.
      *
      * @param band the band.
diff --git a/core/java/android/hardware/radio/RadioManager.java b/core/java/android/hardware/radio/RadioManager.java
index 56668ac..b00f603 100644
--- a/core/java/android/hardware/radio/RadioManager.java
+++ b/core/java/android/hardware/radio/RadioManager.java
@@ -17,8 +17,10 @@
 package android.hardware.radio;
 
 import android.Manifest;
+import android.annotation.CallbackExecutor;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
@@ -32,14 +34,19 @@
 import android.text.TextUtils;
 import android.util.Log;
 
+import com.android.internal.util.Preconditions;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
 import java.util.Set;
+import java.util.concurrent.Executor;
 import java.util.stream.Collectors;
 
 /**
@@ -1380,35 +1387,44 @@
         };
     }
 
-    /** Radio program information returned by
-     * {@link RadioTuner#getProgramInformation(RadioManager.ProgramInfo[])} */
+    /** Radio program information. */
     public static class ProgramInfo implements Parcelable {
 
-        // sourced from hardware/interfaces/broadcastradio/1.1/types.hal
+        // sourced from hardware/interfaces/broadcastradio/2.0/types.hal
         private static final int FLAG_LIVE = 1 << 0;
         private static final int FLAG_MUTED = 1 << 1;
         private static final int FLAG_TRAFFIC_PROGRAM = 1 << 2;
         private static final int FLAG_TRAFFIC_ANNOUNCEMENT = 1 << 3;
+        private static final int FLAG_TUNED = 1 << 4;
+        private static final int FLAG_STEREO = 1 << 5;
 
         @NonNull private final ProgramSelector mSelector;
-        private final boolean mTuned;  // TODO(b/69958777): replace with mFlags
-        private final boolean mStereo;
-        private final boolean mDigital;
-        private final int mFlags;
-        private final int mSignalStrength;
-        private final RadioMetadata mMetadata;
+        @Nullable private final ProgramSelector.Identifier mLogicallyTunedTo;
+        @Nullable private final ProgramSelector.Identifier mPhysicallyTunedTo;
+        @NonNull private final Collection<ProgramSelector.Identifier> mRelatedContent;
+        private final int mInfoFlags;
+        private final int mSignalQuality;
+        @Nullable private final RadioMetadata mMetadata;
         @NonNull private final Map<String, String> mVendorInfo;
 
         /** @hide */
-        public ProgramInfo(@NonNull ProgramSelector selector, boolean tuned, boolean stereo,
-                boolean digital, int signalStrength, RadioMetadata metadata, int flags,
-                Map<String, String> vendorInfo) {
-            mSelector = selector;
-            mTuned = tuned;
-            mStereo = stereo;
-            mDigital = digital;
-            mFlags = flags;
-            mSignalStrength = signalStrength;
+        public ProgramInfo(@NonNull ProgramSelector selector,
+                @Nullable ProgramSelector.Identifier logicallyTunedTo,
+                @Nullable ProgramSelector.Identifier physicallyTunedTo,
+                @Nullable Collection<ProgramSelector.Identifier> relatedContent,
+                int infoFlags, int signalQuality, @Nullable RadioMetadata metadata,
+                @Nullable Map<String, String> vendorInfo) {
+            mSelector = Objects.requireNonNull(selector);
+            mLogicallyTunedTo = logicallyTunedTo;
+            mPhysicallyTunedTo = physicallyTunedTo;
+            if (relatedContent == null) {
+                mRelatedContent = Collections.emptyList();
+            } else {
+                Preconditions.checkCollectionElementsNotNull(relatedContent, "relatedContent");
+                mRelatedContent = relatedContent;
+            }
+            mInfoFlags = infoFlags;
+            mSignalQuality = signalQuality;
             mMetadata = metadata;
             mVendorInfo = (vendorInfo == null) ? new HashMap<>() : vendorInfo;
         }
@@ -1422,6 +1438,51 @@
             return mSelector;
         }
 
+        /**
+         * Identifier currently used for program selection.
+         *
+         * This identifier can be used to determine which technology is
+         * currently being used for reception.
+         *
+         * Some program selectors contain tuning information for different radio
+         * technologies (i.e. FM RDS and DAB). For example, user may tune using
+         * a ProgramSelector with RDS_PI primary identifier, but the tuner hardware
+         * may choose to use DAB technology to make actual tuning. This identifier
+         * must reflect that.
+         */
+        public @Nullable ProgramSelector.Identifier getLogicallyTunedTo() {
+            return mLogicallyTunedTo;
+        }
+
+        /**
+         * Identifier currently used by hardware to physically tune to a channel.
+         *
+         * Some radio technologies broadcast the same program on multiple channels,
+         * i.e. with RDS AF the same program may be broadcasted on multiple
+         * alternative frequencies; the same DAB program may be broadcast on
+         * multiple ensembles. This identifier points to the channel to which the
+         * radio hardware is physically tuned to.
+         */
+        public @Nullable ProgramSelector.Identifier getPhysicallyTunedTo() {
+            return mPhysicallyTunedTo;
+        }
+
+        /**
+         * Primary identifiers of related contents.
+         *
+         * Some radio technologies provide pointers to other programs that carry
+         * related content (i.e. DAB soft-links). This field is a list of pointers
+         * to other programs on the program list.
+         *
+         * Please note, that these identifiers does not have to exist on the program
+         * list - i.e. DAB tuner may provide information on FM RDS alternatives
+         * despite not supporting FM RDS. If the system has multiple tuners, another
+         * one may have it on its list.
+         */
+        public @Nullable Collection<ProgramSelector.Identifier> getRelatedContent() {
+            return mRelatedContent;
+        }
+
         /** Main channel expressed in units according to band type.
          * Currently all defined band types express channels as frequency in kHz
          * @return the program channel
@@ -1456,19 +1517,28 @@
          * @return {@code true} if currently tuned, {@code false} otherwise.
          */
         public boolean isTuned() {
-            return mTuned;
+            return (mInfoFlags & FLAG_TUNED) != 0;
         }
+
         /** {@code true} if the received program is stereo
          * @return {@code true} if stereo, {@code false} otherwise.
          */
         public boolean isStereo() {
-            return mStereo;
+            return (mInfoFlags & FLAG_STEREO) != 0;
         }
+
         /** {@code true} if the received program is digital (e.g HD radio)
          * @return {@code true} if digital, {@code false} otherwise.
+         * @deprecated Use {@link getLogicallyTunedTo()} instead.
          */
+        @Deprecated
         public boolean isDigital() {
-            return mDigital;
+            ProgramSelector.Identifier id = mLogicallyTunedTo;
+            if (id == null) id = mSelector.getPrimaryId();
+
+            int type = id.getType();
+            return (type != ProgramSelector.IDENTIFIER_TYPE_AMFM_FREQUENCY
+                && type != ProgramSelector.IDENTIFIER_TYPE_RDS_PI);
         }
 
         /**
@@ -1477,7 +1547,7 @@
          * usually targetted at reduced latency.
          */
         public boolean isLive() {
-            return (mFlags & FLAG_LIVE) != 0;
+            return (mInfoFlags & FLAG_LIVE) != 0;
         }
 
         /**
@@ -1487,7 +1557,7 @@
          * It does NOT mean the user has muted audio.
          */
         public boolean isMuted() {
-            return (mFlags & FLAG_MUTED) != 0;
+            return (mInfoFlags & FLAG_MUTED) != 0;
         }
 
         /**
@@ -1495,7 +1565,7 @@
          * regularily.
          */
         public boolean isTrafficProgram() {
-            return (mFlags & FLAG_TRAFFIC_PROGRAM) != 0;
+            return (mInfoFlags & FLAG_TRAFFIC_PROGRAM) != 0;
         }
 
         /**
@@ -1503,15 +1573,18 @@
          * at the very moment.
          */
         public boolean isTrafficAnnouncementActive() {
-            return (mFlags & FLAG_TRAFFIC_ANNOUNCEMENT) != 0;
+            return (mInfoFlags & FLAG_TRAFFIC_ANNOUNCEMENT) != 0;
         }
 
-        /** Signal strength indicator from 0 (no signal) to 100 (excellent)
-         * @return the signal strength indication.
+        /**
+         * Signal quality (as opposed to the name) indication from 0 (no signal)
+         * to 100 (excellent)
+         * @return the signal quality indication.
          */
         public int getSignalStrength() {
-            return mSignalStrength;
+            return mSignalQuality;
         }
+
         /** Metadata currently received from this station.
          * null if no metadata have been received
          * @return current meta data received from this program.
@@ -1535,17 +1608,13 @@
         }
 
         private ProgramInfo(Parcel in) {
-            mSelector = in.readParcelable(null);
-            mTuned = in.readByte() == 1;
-            mStereo = in.readByte() == 1;
-            mDigital = in.readByte() == 1;
-            mSignalStrength = in.readInt();
-            if (in.readByte() == 1) {
-                mMetadata = RadioMetadata.CREATOR.createFromParcel(in);
-            } else {
-                mMetadata = null;
-            }
-            mFlags = in.readInt();
+            mSelector = Objects.requireNonNull(in.readTypedObject(ProgramSelector.CREATOR));
+            mLogicallyTunedTo = in.readTypedObject(ProgramSelector.Identifier.CREATOR);
+            mPhysicallyTunedTo = in.readTypedObject(ProgramSelector.Identifier.CREATOR);
+            mRelatedContent = in.createTypedArrayList(ProgramSelector.Identifier.CREATOR);
+            mInfoFlags = in.readInt();
+            mSignalQuality = in.readInt();
+            mMetadata = in.readTypedObject(RadioMetadata.CREATOR);
             mVendorInfo = Utils.readStringMap(in);
         }
 
@@ -1562,18 +1631,13 @@
 
         @Override
         public void writeToParcel(Parcel dest, int flags) {
-            dest.writeParcelable(mSelector, 0);
-            dest.writeByte((byte)(mTuned ? 1 : 0));
-            dest.writeByte((byte)(mStereo ? 1 : 0));
-            dest.writeByte((byte)(mDigital ? 1 : 0));
-            dest.writeInt(mSignalStrength);
-            if (mMetadata == null) {
-                dest.writeByte((byte)0);
-            } else {
-                dest.writeByte((byte)1);
-                mMetadata.writeToParcel(dest, flags);
-            }
-            dest.writeInt(mFlags);
+            dest.writeTypedObject(mSelector, flags);
+            dest.writeTypedObject(mLogicallyTunedTo, flags);
+            dest.writeTypedObject(mPhysicallyTunedTo, flags);
+            Utils.writeTypedCollection(dest, mRelatedContent);
+            dest.writeInt(mInfoFlags);
+            dest.writeInt(mSignalQuality);
+            dest.writeTypedObject(mMetadata, flags);
             Utils.writeStringMap(dest, mVendorInfo);
         }
 
@@ -1584,52 +1648,38 @@
 
         @Override
         public String toString() {
-            return "ProgramInfo [mSelector=" + mSelector
-                    + ", mTuned=" + mTuned + ", mStereo=" + mStereo + ", mDigital=" + mDigital
-                    + ", mFlags=" + mFlags + ", mSignalStrength=" + mSignalStrength
-                    + ((mMetadata == null) ? "" : (", mMetadata=" + mMetadata.toString()))
+            return "ProgramInfo"
+                    + " [selector=" + mSelector
+                    + ", logicallyTunedTo=" + Objects.toString(mLogicallyTunedTo)
+                    + ", physicallyTunedTo=" + Objects.toString(mPhysicallyTunedTo)
+                    + ", relatedContent=" + mRelatedContent.size()
+                    + ", infoFlags=" + mInfoFlags
+                    + ", mSignalQuality=" + mSignalQuality
+                    + ", mMetadata=" + Objects.toString(mMetadata)
                     + "]";
         }
 
         @Override
         public int hashCode() {
-            final int prime = 31;
-            int result = 1;
-            result = prime * result + mSelector.hashCode();
-            result = prime * result + (mTuned ? 1 : 0);
-            result = prime * result + (mStereo ? 1 : 0);
-            result = prime * result + (mDigital ? 1 : 0);
-            result = prime * result + mFlags;
-            result = prime * result + mSignalStrength;
-            result = prime * result + ((mMetadata == null) ? 0 : mMetadata.hashCode());
-            result = prime * result + mVendorInfo.hashCode();
-            return result;
+            return Objects.hash(mSelector, mLogicallyTunedTo, mPhysicallyTunedTo,
+                mRelatedContent, mInfoFlags, mSignalQuality, mMetadata, mVendorInfo);
         }
 
         @Override
         public boolean equals(Object obj) {
-            if (this == obj)
-                return true;
-            if (!(obj instanceof ProgramInfo))
-                return false;
+            if (this == obj) return true;
+            if (!(obj instanceof ProgramInfo)) return false;
             ProgramInfo other = (ProgramInfo) obj;
-            if (!mSelector.equals(other.getSelector())) return false;
-            if (mTuned != other.isTuned())
-                return false;
-            if (mStereo != other.isStereo())
-                return false;
-            if (mDigital != other.isDigital())
-                return false;
-            if (mFlags != other.mFlags)
-                return false;
-            if (mSignalStrength != other.getSignalStrength())
-                return false;
-            if (mMetadata == null) {
-                if (other.getMetadata() != null)
-                    return false;
-            } else if (!mMetadata.equals(other.getMetadata()))
-                return false;
-            if (!mVendorInfo.equals(other.mVendorInfo)) return false;
+
+            if (!Objects.equals(mSelector, other.mSelector)) return false;
+            if (!Objects.equals(mLogicallyTunedTo, other.mLogicallyTunedTo)) return false;
+            if (!Objects.equals(mPhysicallyTunedTo, other.mPhysicallyTunedTo)) return false;
+            if (!Objects.equals(mRelatedContent, other.mRelatedContent)) return false;
+            if (mInfoFlags != other.mInfoFlags) return false;
+            if (mSignalQuality != other.mSignalQuality) return false;
+            if (!Objects.equals(mMetadata, other.mMetadata)) return false;
+            if (!Objects.equals(mVendorInfo, other.mVendorInfo)) return false;
+
             return true;
         }
     }
@@ -1713,6 +1763,68 @@
                 config != null ? config.getType() : BAND_INVALID);
     }
 
+    private final Map<Announcement.OnListUpdatedListener, ICloseHandle> mAnnouncementListeners =
+            new HashMap<>();
+
+    /**
+     * Adds new announcement listener.
+     *
+     * @param enabledAnnouncementTypes a set of announcement types to listen to
+     * @param listener announcement listener
+     */
+    @RequiresPermission(Manifest.permission.ACCESS_BROADCAST_RADIO)
+    public void addAnnouncementListener(@NonNull Set<Integer> enabledAnnouncementTypes,
+            @NonNull Announcement.OnListUpdatedListener listener) {
+        addAnnouncementListener(cmd -> cmd.run(), enabledAnnouncementTypes, listener);
+    }
+
+    /**
+     * Adds new announcement listener with executor.
+     *
+     * @param executor the executor
+     * @param enabledAnnouncementTypes a set of announcement types to listen to
+     * @param listener announcement listener
+     */
+    @RequiresPermission(Manifest.permission.ACCESS_BROADCAST_RADIO)
+    public void addAnnouncementListener(@NonNull @CallbackExecutor Executor executor,
+            @NonNull Set<Integer> enabledAnnouncementTypes,
+            @NonNull Announcement.OnListUpdatedListener listener) {
+        Objects.requireNonNull(executor);
+        Objects.requireNonNull(listener);
+        int[] types = enabledAnnouncementTypes.stream().mapToInt(Integer::intValue).toArray();
+        IAnnouncementListener listenerIface = new IAnnouncementListener.Stub() {
+            public void onListUpdated(List<Announcement> activeAnnouncements) {
+                executor.execute(() -> listener.onListUpdated(activeAnnouncements));
+            }
+        };
+        synchronized (mAnnouncementListeners) {
+            ICloseHandle closeHandle = null;
+            try {
+                closeHandle = mService.addAnnouncementListener(types, listenerIface);
+            } catch (RemoteException ex) {
+                ex.rethrowFromSystemServer();
+            }
+            Objects.requireNonNull(closeHandle);
+            ICloseHandle oldCloseHandle = mAnnouncementListeners.put(listener, closeHandle);
+            if (oldCloseHandle != null) Utils.close(oldCloseHandle);
+        }
+    }
+
+    /**
+     * Removes previously registered announcement listener.
+     *
+     * @param listener announcement listener, previously registered with
+     *        {@link addAnnouncementListener}
+     */
+    @RequiresPermission(Manifest.permission.ACCESS_BROADCAST_RADIO)
+    public void removeAnnouncementListener(@NonNull Announcement.OnListUpdatedListener listener) {
+        Objects.requireNonNull(listener);
+        synchronized (mAnnouncementListeners) {
+            ICloseHandle closeHandle = mAnnouncementListeners.remove(listener);
+            if (closeHandle != null) Utils.close(closeHandle);
+        }
+    }
+
     @NonNull private final Context mContext;
     @NonNull private final IRadioService mService;
 
diff --git a/core/java/android/hardware/radio/RadioTuner.java b/core/java/android/hardware/radio/RadioTuner.java
index ed20c4a..0edd055 100644
--- a/core/java/android/hardware/radio/RadioTuner.java
+++ b/core/java/android/hardware/radio/RadioTuner.java
@@ -64,7 +64,9 @@
      *  <li>{@link RadioManager#STATUS_DEAD_OBJECT} if the binder transaction to the native
      *  service fails, </li>
      * </ul>
+     * @deprecated Only applicable for HAL 1.x.
      */
+    @Deprecated
     public abstract int setConfiguration(RadioManager.BandConfig config);
 
     /**
@@ -80,7 +82,10 @@
      *  <li>{@link RadioManager#STATUS_DEAD_OBJECT} if the binder transaction to the native
      *  service fails, </li>
      * </ul>
+     *
+     * @deprecated Only applicable for HAL 1.x.
      */
+    @Deprecated
     public abstract int getConfiguration(RadioManager.BandConfig[] config);
 
 
@@ -228,7 +233,9 @@
      *  <li>{@link RadioManager#STATUS_DEAD_OBJECT} if the binder transaction to the native
      *  service fails, </li>
      * </ul>
+     * @deprecated Use {@link onProgramInfoChanged} callback instead.
      */
+    @Deprecated
     public abstract int getProgramInformation(RadioManager.ProgramInfo[] info);
 
     /**
@@ -427,7 +434,10 @@
      * Get current antenna connection state for current configuration.
      * Only valid if a configuration has been applied.
      * @return {@code true} if the antenna is connected, {@code false} otherwise.
+     *
+     * @deprecated Use {@link onAntennaState} callback instead
      */
+    @Deprecated
     public abstract boolean isAntennaConnected();
 
     /**
@@ -446,20 +456,41 @@
     public abstract boolean hasControl();
 
     /** Indicates a failure of radio IC or driver.
-     * The application must close and re open the tuner */
+     * The application must close and re open the tuner
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final int ERROR_HARDWARE_FAILURE = 0;
     /** Indicates a failure of the radio service.
-     * The application must close and re open the tuner */
+     * The application must close and re open the tuner
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final  int ERROR_SERVER_DIED = 1;
-    /** A pending seek or tune operation was cancelled */
+    /** A pending seek or tune operation was cancelled
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final  int ERROR_CANCELLED = 2;
-    /** A pending seek or tune operation timed out */
+    /** A pending seek or tune operation timed out
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final  int ERROR_SCAN_TIMEOUT = 3;
-    /** The requested configuration could not be applied */
+    /** The requested configuration could not be applied
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final  int ERROR_CONFIG = 4;
-    /** Background scan was interrupted due to hardware becoming temporarily unavailable. */
+    /** Background scan was interrupted due to hardware becoming temporarily unavailable.
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final int ERROR_BACKGROUND_SCAN_UNAVAILABLE = 5;
-    /** Background scan failed due to other error, ie. HW failure. */
+    /** Background scan failed due to other error, ie. HW failure.
+     * @deprecated See {@link onError} callback.
+     */
+    @Deprecated
     public static final int ERROR_BACKGROUND_SCAN_FAILED = 6;
 
     /**
@@ -473,13 +504,29 @@
          * status is one of {@link #ERROR_HARDWARE_FAILURE}, {@link #ERROR_SERVER_DIED},
          * {@link #ERROR_CANCELLED}, {@link #ERROR_SCAN_TIMEOUT},
          * {@link #ERROR_CONFIG}
+         *
+         * @deprecated Use {@link onTuneFailed} for tune, scan and step;
+         *             other use cases (configuration, background scan) are already deprecated.
          */
         public void onError(int status) {}
+
+        /**
+         * Called when tune, scan or step operation fails.
+         *
+         * @param result cause of the failure
+         * @param selector ProgramSelector argument of tune that failed;
+         *                 null for scan and step.
+         */
+        public void onTuneFailed(int result, @Nullable ProgramSelector selector) {}
+
         /**
          * onConfigurationChanged() is called upon successful completion of
          * {@link RadioManager#openTuner(int, RadioManager.BandConfig, boolean, Callback, Handler)}
          * or {@link RadioTuner#setConfiguration(RadioManager.BandConfig)}
+         *
+         * @deprecated Only applicable for HAL 1.x.
          */
+        @Deprecated
         public void onConfigurationChanged(RadioManager.BandConfig config) {}
 
         /**
diff --git a/core/java/android/hardware/radio/TunerAdapter.java b/core/java/android/hardware/radio/TunerAdapter.java
index 91944bf..85f3115 100644
--- a/core/java/android/hardware/radio/TunerAdapter.java
+++ b/core/java/android/hardware/radio/TunerAdapter.java
@@ -202,15 +202,17 @@
     @Override
     public int getProgramInformation(RadioManager.ProgramInfo[] info) {
         if (info == null || info.length != 1) {
-            throw new IllegalArgumentException("The argument must be an array of length 1");
+            Log.e(TAG, "The argument must be an array of length 1");
+            return RadioManager.STATUS_BAD_VALUE;
         }
-        try {
-            info[0] = mTuner.getProgramInformation();
-            return RadioManager.STATUS_OK;
-        } catch (RemoteException e) {
-            Log.e(TAG, "service died", e);
-            return RadioManager.STATUS_DEAD_OBJECT;
+
+        RadioManager.ProgramInfo current = mCallback.getCurrentProgramInformation();
+        if (current == null) {
+            Log.w(TAG, "Didn't get program info yet");
+            return RadioManager.STATUS_INVALID_OPERATION;
         }
+        info[0] = current;
+        return RadioManager.STATUS_OK;
     }
 
     @Override
@@ -288,12 +290,20 @@
 
     @Override
     public boolean isAnalogForced() {
-        return isConfigFlagSet(RadioManager.CONFIG_FORCE_ANALOG);
+        try {
+            return isConfigFlagSet(RadioManager.CONFIG_FORCE_ANALOG);
+        } catch (UnsupportedOperationException ex) {
+            throw new IllegalStateException(ex);
+        }
     }
 
     @Override
     public void setAnalogForced(boolean isForced) {
-        setConfigFlag(RadioManager.CONFIG_FORCE_ANALOG, isForced);
+        try {
+            setConfigFlag(RadioManager.CONFIG_FORCE_ANALOG, isForced);
+        } catch (UnsupportedOperationException ex) {
+            throw new IllegalStateException(ex);
+        }
     }
 
     @Override
@@ -343,11 +353,7 @@
 
     @Override
     public boolean isAntennaConnected() {
-        try {
-            return mTuner.isAntennaConnected();
-        } catch (RemoteException e) {
-            throw new RuntimeException("service died", e);
-        }
+        return mCallback.isAntennaConnected();
     }
 
     @Override
diff --git a/core/java/android/hardware/radio/TunerCallbackAdapter.java b/core/java/android/hardware/radio/TunerCallbackAdapter.java
index b299ffe..7437c40 100644
--- a/core/java/android/hardware/radio/TunerCallbackAdapter.java
+++ b/core/java/android/hardware/radio/TunerCallbackAdapter.java
@@ -37,8 +37,12 @@
     @NonNull private final Handler mHandler;
 
     @Nullable ProgramList mProgramList;
-    @Nullable List<RadioManager.ProgramInfo> mLastCompleteList;  // for legacy getProgramList call
+
+    // cache for deprecated methods
+    boolean mIsAntennaConnected = true;
+    @Nullable List<RadioManager.ProgramInfo> mLastCompleteList;
     private boolean mDelayedCompleteCallback = false;
+    @Nullable RadioManager.ProgramInfo mCurrentProgramInfo;
 
     TunerCallbackAdapter(@NonNull RadioTuner.Callback callback, @Nullable Handler handler) {
         mCallback = callback;
@@ -92,12 +96,46 @@
         }
     }
 
+    @Nullable RadioManager.ProgramInfo getCurrentProgramInformation() {
+        synchronized (mLock) {
+            return mCurrentProgramInfo;
+        }
+    }
+
+    boolean isAntennaConnected() {
+        return mIsAntennaConnected;
+    }
+
     @Override
     public void onError(int status) {
         mHandler.post(() -> mCallback.onError(status));
     }
 
     @Override
+    public void onTuneFailed(int status, @Nullable ProgramSelector selector) {
+        mHandler.post(() -> mCallback.onTuneFailed(status, selector));
+
+        int errorCode;
+        switch (status) {
+            case RadioManager.STATUS_PERMISSION_DENIED:
+            case RadioManager.STATUS_DEAD_OBJECT:
+                errorCode = RadioTuner.ERROR_SERVER_DIED;
+                break;
+            case RadioManager.STATUS_ERROR:
+            case RadioManager.STATUS_NO_INIT:
+            case RadioManager.STATUS_BAD_VALUE:
+            case RadioManager.STATUS_INVALID_OPERATION:
+                Log.i(TAG, "Got an error with no mapping to the legacy API (" + status
+                        + "), doing a best-effort conversion to ERROR_SCAN_TIMEOUT");
+            // fall through
+            case RadioManager.STATUS_TIMED_OUT:
+            default:
+                errorCode = RadioTuner.ERROR_SCAN_TIMEOUT;
+        }
+        mHandler.post(() -> mCallback.onError(errorCode));
+    }
+
+    @Override
     public void onConfigurationChanged(RadioManager.BandConfig config) {
         mHandler.post(() -> mCallback.onConfigurationChanged(config));
     }
@@ -109,6 +147,10 @@
             return;
         }
 
+        synchronized (mLock) {
+            mCurrentProgramInfo = info;
+        }
+
         mHandler.post(() -> {
             mCallback.onProgramInfoChanged(info);
 
@@ -129,6 +171,7 @@
 
     @Override
     public void onAntennaState(boolean connected) {
+        mIsAntennaConnected = connected;
         mHandler.post(() -> mCallback.onAntennaState(connected));
     }
 
diff --git a/core/java/android/hardware/radio/Utils.java b/core/java/android/hardware/radio/Utils.java
index 09bf8fe..f1b5897 100644
--- a/core/java/android/hardware/radio/Utils.java
+++ b/core/java/android/hardware/radio/Utils.java
@@ -20,7 +20,10 @@
 import android.annotation.Nullable;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.os.RemoteException;
 
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
@@ -28,6 +31,8 @@
 import java.util.Set;
 
 final class Utils {
+    private static final String TAG = "BroadcastRadio.utils";
+
     static void writeStringMap(@NonNull Parcel dest, @Nullable Map<String, String> map) {
         if (map == null) {
             dest.writeInt(0);
@@ -89,4 +94,25 @@
             }
         });
     }
+
+    static <T extends Parcelable> void writeTypedCollection(@NonNull Parcel dest,
+            @Nullable Collection<T> coll) {
+        ArrayList<T> list = null;
+        if (coll != null) {
+            if (coll instanceof ArrayList) {
+                list = (ArrayList) coll;
+            } else {
+                list = new ArrayList<>(coll);
+            }
+        }
+        dest.writeTypedList(list);
+    }
+
+    static void close(ICloseHandle handle) {
+        try {
+            handle.close();
+        } catch (RemoteException ex) {
+            ex.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/core/java/android/net/IpSecTransform.java b/core/java/android/net/IpSecTransform.java
index 37e2c4f..9ccdbe2 100644
--- a/core/java/android/net/IpSecTransform.java
+++ b/core/java/android/net/IpSecTransform.java
@@ -17,11 +17,14 @@
 
 import static android.net.IpSecManager.INVALID_RESOURCE_ID;
 
+import static com.android.internal.util.Preconditions.checkNotNull;
+
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.SystemApi;
 import android.content.Context;
 import android.os.Binder;
+import android.os.Handler;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -128,13 +131,6 @@
                 int status = result.status;
                 checkResultStatus(status);
                 mResourceId = result.resourceId;
-
-                /* Keepalive will silently fail if not needed by the config; but, if needed and
-                 * it fails to start, we need to bail because a transform will not be reliable
-                 * to use if keepalive is expected to offload and fails.
-                 */
-                // FIXME: if keepalive fails, we need to fail spectacularly
-                startKeepalive(mContext);
                 Log.d(TAG, "Added Transform with Id " + mResourceId);
                 mCloseGuard.open("build");
             } catch (RemoteException e) {
@@ -164,13 +160,9 @@
             return;
         }
         try {
-            /* Order matters here because the keepalive is best-effort but could fail in some
-             * horrible way to be removed if the wifi (or cell) subsystem has crashed, and we
-             * still want to clear out the transform.
-             */
             IIpSecService svc = getIpSecService();
             svc.deleteTransform(mResourceId);
-            stopKeepalive();
+            stopNattKeepalive();
         } catch (RemoteException e) {
             throw e.rethrowAsRuntimeException();
         } finally {
@@ -198,42 +190,35 @@
     private final Context mContext;
     private final CloseGuard mCloseGuard = CloseGuard.get();
     private ConnectivityManager.PacketKeepalive mKeepalive;
-    private int mKeepaliveStatus = ConnectivityManager.PacketKeepalive.NO_KEEPALIVE;
-    private Object mKeepaliveSyncLock = new Object();
-    private ConnectivityManager.PacketKeepaliveCallback mKeepaliveCallback =
+    private Handler mCallbackHandler;
+    private final ConnectivityManager.PacketKeepaliveCallback mKeepaliveCallback =
             new ConnectivityManager.PacketKeepaliveCallback() {
 
                 @Override
                 public void onStarted() {
-                    synchronized (mKeepaliveSyncLock) {
-                        mKeepaliveStatus = ConnectivityManager.PacketKeepalive.SUCCESS;
-                        mKeepaliveSyncLock.notifyAll();
+                    synchronized (this) {
+                        mCallbackHandler.post(() -> mUserKeepaliveCallback.onStarted());
                     }
                 }
 
                 @Override
                 public void onStopped() {
-                    synchronized (mKeepaliveSyncLock) {
-                        mKeepaliveStatus = ConnectivityManager.PacketKeepalive.NO_KEEPALIVE;
-                        mKeepaliveSyncLock.notifyAll();
+                    synchronized (this) {
+                        mKeepalive = null;
+                        mCallbackHandler.post(() -> mUserKeepaliveCallback.onStopped());
                     }
                 }
 
                 @Override
                 public void onError(int error) {
-                    synchronized (mKeepaliveSyncLock) {
-                        mKeepaliveStatus = error;
-                        mKeepaliveSyncLock.notifyAll();
+                    synchronized (this) {
+                        mKeepalive = null;
+                        mCallbackHandler.post(() -> mUserKeepaliveCallback.onError(error));
                     }
                 }
             };
 
-    /* Package */
-    void startKeepalive(Context c) {
-        if (mConfig.getNattKeepaliveInterval() != 0) {
-            Log.wtf(TAG, "Keepalive not yet supported.");
-        }
-    }
+    private NattKeepaliveCallback mUserKeepaliveCallback;
 
     /** @hide */
     @VisibleForTesting
@@ -241,9 +226,93 @@
         return mResourceId;
     }
 
-    /* Package */
-    void stopKeepalive() {
-        return;
+    /**
+     * A callback class to provide status information regarding a NAT-T keepalive session
+     *
+     * <p>Use this callback to receive status information regarding a NAT-T keepalive session
+     * by registering it when calling {@link #startNattKeepalive}.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static class NattKeepaliveCallback {
+        /** The specified {@code Network} is not connected. */
+        public static final int ERROR_INVALID_NETWORK = 1;
+        /** The hardware does not support this request. */
+        public static final int ERROR_HARDWARE_UNSUPPORTED = 2;
+        /** The hardware returned an error. */
+        public static final int ERROR_HARDWARE_ERROR = 3;
+
+        /** The requested keepalive was successfully started. */
+        public void onStarted() {}
+        /** The keepalive was successfully stopped. */
+        public void onStopped() {}
+        /** An error occurred. */
+        public void onError(int error) {}
+    }
+
+    /**
+     * Start a NAT-T keepalive session for the current transform.
+     *
+     * For a transform that is using UDP encapsulated IPv4, NAT-T offloading provides
+     * a power efficient mechanism of sending NAT-T packets at a specified interval.
+     *
+     * @param userCallback a {@link #NattKeepaliveCallback} to receive asynchronous status
+     *      information about the requested NAT-T keepalive session.
+     * @param intervalSeconds the interval between NAT-T keepalives being sent. The
+     *      the allowed range is between 20 and 3600 seconds.
+     * @param handler a handler on which to post callbacks when received.
+     *
+     * @hide
+     */
+    @SystemApi
+    public void startNattKeepalive(@NonNull NattKeepaliveCallback userCallback,
+            int intervalSeconds, @NonNull Handler handler) throws IOException {
+        checkNotNull(userCallback);
+        if (intervalSeconds < 20 || intervalSeconds > 3600) {
+            throw new IllegalArgumentException("Invalid NAT-T keepalive interval");
+        }
+        checkNotNull(handler);
+        if (mResourceId == INVALID_RESOURCE_ID) {
+            throw new IllegalStateException(
+                    "Packet keepalive cannot be started for an inactive transform");
+        }
+
+        synchronized (mKeepaliveCallback) {
+            if (mKeepaliveCallback != null) {
+                throw new IllegalStateException("Keepalive already active");
+            }
+
+            mUserKeepaliveCallback = userCallback;
+            ConnectivityManager cm = (ConnectivityManager) mContext.getSystemService(
+                    Context.CONNECTIVITY_SERVICE);
+            mKeepalive = cm.startNattKeepalive(
+                    mConfig.getNetwork(), intervalSeconds, mKeepaliveCallback,
+                    NetworkUtils.numericToInetAddress(mConfig.getSourceAddress()),
+                    4500, // FIXME urgently, we need to get the port number from the Encap socket
+                    NetworkUtils.numericToInetAddress(mConfig.getDestinationAddress()));
+            mCallbackHandler = handler;
+        }
+    }
+
+    /**
+     * Stop an ongoing NAT-T keepalive session.
+     *
+     * Calling this API will request that an ongoing NAT-T keepalive session be terminated.
+     * If this API is not called when a Transform is closed, the underlying NAT-T session will
+     * be terminated automatically.
+     *
+     * @hide
+     */
+    @SystemApi
+    public void stopNattKeepalive() {
+        synchronized (mKeepaliveCallback) {
+            if (mKeepalive == null) {
+                Log.e(TAG, "No active keepalive to stop");
+                return;
+            }
+            mKeepalive.stop();
+        }
     }
 
     /** This class is used to build {@link IpSecTransform} objects. */
@@ -323,26 +392,6 @@
             return this;
         }
 
-        // TODO: Decrease the minimum keepalive to maybe 10?
-        // TODO: Probably a better exception to throw for NATTKeepalive failure
-        // TODO: Specify the needed NATT keepalive permission.
-        /**
-         * Set NAT-T keepalives to be sent with a given interval.
-         *
-         * <p>This will set power-efficient keepalive packets to be sent by the system. If NAT-T
-         * keepalive is requested but cannot be activated, then creation of an {@link
-         * IpSecTransform} will fail when calling the build method.
-         *
-         * @param intervalSeconds the maximum number of seconds between keepalive packets. Must be
-         *     between 20s and 3600s.
-         * @hide
-         */
-        @SystemApi
-        public IpSecTransform.Builder setNattKeepalive(int intervalSeconds) {
-            mConfig.setNattKeepaliveInterval(intervalSeconds);
-            return this;
-        }
-
         /**
          * Build a transport mode {@link IpSecTransform}.
          *
diff --git a/core/java/android/net/KeepalivePacketData.aidl b/core/java/android/net/KeepalivePacketData.aidl
new file mode 100644
index 0000000..d456b53
--- /dev/null
+++ b/core/java/android/net/KeepalivePacketData.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net;
+
+parcelable KeepalivePacketData;
diff --git a/core/java/android/net/KeepalivePacketData.java b/core/java/android/net/KeepalivePacketData.java
new file mode 100644
index 0000000..08d4ff5
--- /dev/null
+++ b/core/java/android/net/KeepalivePacketData.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.net;
+
+import android.system.OsConstants;
+import android.net.ConnectivityManager;
+import android.net.util.IpUtils;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.system.OsConstants;
+import android.util.Log;
+
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+
+import static android.net.ConnectivityManager.PacketKeepalive.*;
+
+/**
+ * Represents the actual packets that are sent by the
+ * {@link android.net.ConnectivityManager.PacketKeepalive} API.
+ *
+ * @hide
+ */
+public class KeepalivePacketData implements Parcelable {
+    private static final String TAG = "KeepalivePacketData";
+
+    /** Source IP address */
+    public final InetAddress srcAddress;
+
+    /** Destination IP address */
+    public final InetAddress dstAddress;
+
+    /** Source port */
+    public final int srcPort;
+
+    /** Destination port */
+    public final int dstPort;
+
+    /** Packet data. A raw byte string of packet data, not including the link-layer header. */
+    private final byte[] mPacket;
+
+    private static final int IPV4_HEADER_LENGTH = 20;
+    private static final int UDP_HEADER_LENGTH = 8;
+
+    // This should only be constructed via static factory methods, such as
+    // nattKeepalivePacket
+    protected KeepalivePacketData(InetAddress srcAddress, int srcPort,
+            InetAddress dstAddress, int dstPort, byte[] data) throws InvalidPacketException {
+        this.srcAddress = srcAddress;
+        this.dstAddress = dstAddress;
+        this.srcPort = srcPort;
+        this.dstPort = dstPort;
+        this.mPacket = data;
+
+        // Check we have two IP addresses of the same family.
+        if (srcAddress == null || dstAddress == null || !srcAddress.getClass().getName()
+                .equals(dstAddress.getClass().getName())) {
+            Log.e(TAG, "Invalid or mismatched InetAddresses in KeepalivePacketData");
+            throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
+        }
+
+        // Check the ports.
+        if (!IpUtils.isValidUdpOrTcpPort(srcPort) || !IpUtils.isValidUdpOrTcpPort(dstPort)) {
+            Log.e(TAG, "Invalid ports in KeepalivePacketData");
+            throw new InvalidPacketException(ERROR_INVALID_PORT);
+        }
+    }
+
+    public static class InvalidPacketException extends Exception {
+        public final int error;
+        public InvalidPacketException(int error) {
+            this.error = error;
+        }
+    }
+
+    public byte[] getPacket() {
+        return mPacket.clone();
+    }
+
+    public static KeepalivePacketData nattKeepalivePacket(
+            InetAddress srcAddress, int srcPort, InetAddress dstAddress, int dstPort)
+            throws InvalidPacketException {
+
+        // FIXME: remove this and actually support IPv6 keepalives
+        if (srcAddress instanceof Inet6Address && dstAddress instanceof Inet6Address) {
+            // Optimistically returning an IPv6 Keepalive Packet with no data,
+            // which currently only works on cellular
+            return new KeepalivePacketData(srcAddress, srcPort, dstAddress, dstPort, new byte[0]);
+        }
+
+        if (!(srcAddress instanceof Inet4Address) || !(dstAddress instanceof Inet4Address)) {
+            throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
+        }
+
+        if (dstPort != NATT_PORT) {
+            throw new InvalidPacketException(ERROR_INVALID_PORT);
+        }
+
+        int length = IPV4_HEADER_LENGTH + UDP_HEADER_LENGTH + 1;
+        ByteBuffer buf = ByteBuffer.allocate(length);
+        buf.order(ByteOrder.BIG_ENDIAN);
+        buf.putShort((short) 0x4500);             // IP version and TOS
+        buf.putShort((short) length);
+        buf.putInt(0);                            // ID, flags, offset
+        buf.put((byte) 64);                       // TTL
+        buf.put((byte) OsConstants.IPPROTO_UDP);
+        int ipChecksumOffset = buf.position();
+        buf.putShort((short) 0);                  // IP checksum
+        buf.put(srcAddress.getAddress());
+        buf.put(dstAddress.getAddress());
+        buf.putShort((short) srcPort);
+        buf.putShort((short) dstPort);
+        buf.putShort((short) (length - 20));      // UDP length
+        int udpChecksumOffset = buf.position();
+        buf.putShort((short) 0);                  // UDP checksum
+        buf.put((byte) 0xff);                     // NAT-T keepalive
+        buf.putShort(ipChecksumOffset, IpUtils.ipChecksum(buf, 0));
+        buf.putShort(udpChecksumOffset, IpUtils.udpChecksum(buf, 0, IPV4_HEADER_LENGTH));
+
+        return new KeepalivePacketData(srcAddress, srcPort, dstAddress, dstPort, buf.array());
+    }
+
+    /* Parcelable Implementation */
+    public int describeContents() {
+        return 0;
+    }
+
+    /** Write to parcel */
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeString(srcAddress.getHostAddress());
+        out.writeString(dstAddress.getHostAddress());
+        out.writeInt(srcPort);
+        out.writeInt(dstPort);
+        out.writeByteArray(mPacket);
+    }
+
+    private KeepalivePacketData(Parcel in) {
+        srcAddress = NetworkUtils.numericToInetAddress(in.readString());
+        dstAddress = NetworkUtils.numericToInetAddress(in.readString());
+        srcPort = in.readInt();
+        dstPort = in.readInt();
+        mPacket = in.createByteArray();
+    }
+
+    /** Parcelable Creator */
+    public static final Parcelable.Creator<KeepalivePacketData> CREATOR =
+            new Parcelable.Creator<KeepalivePacketData>() {
+                public KeepalivePacketData createFromParcel(Parcel in) {
+                    return new KeepalivePacketData(in);
+                }
+
+                public KeepalivePacketData[] newArray(int size) {
+                    return new KeepalivePacketData[size];
+                }
+            };
+
+}
diff --git a/core/java/android/net/NetworkCapabilities.java b/core/java/android/net/NetworkCapabilities.java
index 1a4765b..8e05cfa 100644
--- a/core/java/android/net/NetworkCapabilities.java
+++ b/core/java/android/net/NetworkCapabilities.java
@@ -892,7 +892,7 @@
      *
      * @hide
      */
-    private Set<UidRange> mUids = null;
+    private ArraySet<UidRange> mUids = null;
 
     /**
      * Convenience method to set the UIDs this network applies to to a single UID.
@@ -1178,7 +1178,7 @@
         dest.writeInt(mLinkDownBandwidthKbps);
         dest.writeParcelable((Parcelable) mNetworkSpecifier, flags);
         dest.writeInt(mSignalStrength);
-        dest.writeArraySet(new ArraySet<>(mUids));
+        dest.writeArraySet(mUids);
     }
 
     public static final Creator<NetworkCapabilities> CREATOR =
diff --git a/services/net/java/android/net/util/IpUtils.java b/core/java/android/net/util/IpUtils.java
similarity index 100%
rename from services/net/java/android/net/util/IpUtils.java
rename to core/java/android/net/util/IpUtils.java
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index 48f5684..fc78861 100644
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -894,6 +894,14 @@
 
         /**
          * P.
+         *
+         * <p>Applications targeting this or a later release will get these
+         * new changes in behavior:</p>
+         * <ul>
+         * <li>{@link android.app.Service#startForeground Service.startForeground} requires
+         * that apps hold the permission
+         * {@link android.Manifest.permission#FOREGROUND_SERVICE}.</li>
+         * </ul>
          */
         public static final int P = CUR_DEVELOPMENT; // STOPSHIP Replace with the real version.
     }
diff --git a/core/java/android/os/Environment.java b/core/java/android/os/Environment.java
index b1794a6..158041d 100644
--- a/core/java/android/os/Environment.java
+++ b/core/java/android/os/Environment.java
@@ -292,9 +292,18 @@
     }
 
     /** {@hide} */
-    public static File getProfileSnapshotPath(String packageName, String codePath) {
-        return buildPath(buildPath(getDataDirectory(), "misc", "profiles", "ref", packageName,
-                "primary.prof.snapshot"));
+    public static File getDataVendorCeDirectory(int userId) {
+        return buildPath(getDataDirectory(), "vendor_ce", String.valueOf(userId));
+    }
+
+    /** {@hide} */
+    public static File getDataVendorDeDirectory(int userId) {
+        return buildPath(getDataDirectory(), "vendor_de", String.valueOf(userId));
+    }
+
+    /** {@hide} */
+    public static File getDataRefProfilesDePackageDirectory(String packageName) {
+        return buildPath(getDataDirectory(), "misc", "profiles", "ref", packageName);
     }
 
     /** {@hide} */
diff --git a/core/java/android/os/HidlSupport.java b/core/java/android/os/HidlSupport.java
index 4d7d931..335bf9d 100644
--- a/core/java/android/os/HidlSupport.java
+++ b/core/java/android/os/HidlSupport.java
@@ -16,6 +16,8 @@
 
 package android.os;
 
+import android.annotation.SystemApi;
+
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
@@ -25,6 +27,7 @@
 import java.util.stream.IntStream;
 
 /** @hide */
+@SystemApi
 public class HidlSupport {
     /**
      * Similar to Objects.deepEquals, but also take care of lists.
@@ -36,7 +39,9 @@
      * 2.3 Both are Lists, elements are checked recursively
      * 2.4 (If both are collections other than lists or maps, throw an error)
      * 2.5 lft.equals(rgt) returns true
+     * @hide
      */
+    @SystemApi
     public static boolean deepEquals(Object lft, Object rgt) {
         if (lft == rgt) {
             return true;
@@ -91,6 +96,7 @@
      * and should be avoided).
      *
      * @param <E> Inner object type.
+     * @hide
      */
     public static final class Mutable<E> {
         public E value;
@@ -106,7 +112,9 @@
 
     /**
      * Similar to Arrays.deepHashCode, but also take care of lists.
+     * @hide
      */
+    @SystemApi
     public static int deepHashCode(Object o) {
         if (o == null) {
             return 0;
@@ -133,6 +141,7 @@
         return o.hashCode();
     }
 
+    /** @hide */
     private static void throwErrorIfUnsupportedType(Object o) {
         if (o instanceof Collection<?> && !(o instanceof List<?>)) {
             throw new UnsupportedOperationException(
@@ -146,6 +155,7 @@
         }
     }
 
+    /** @hide */
     private static int primitiveArrayHashCode(Object o) {
         Class<?> elementType = o.getClass().getComponentType();
         if (elementType == boolean.class) {
@@ -185,7 +195,9 @@
      * - If both interfaces are stubs, asBinder() returns the object itself. By default,
      *   auto-generated IFoo.Stub does not override equals(), but an implementation can
      *   optionally override it, and {@code interfacesEqual} will use it here.
+     * @hide
      */
+    @SystemApi
     public static boolean interfacesEqual(IHwInterface lft, Object rgt) {
         if (lft == rgt) {
             return true;
@@ -201,6 +213,10 @@
 
     /**
      * Return PID of process if sharable to clients.
+     * @hide
      */
     public static native int getPidIfSharable();
+
+    /** @hide */
+    public HidlSupport() {}
 }
diff --git a/core/java/android/os/HwBinder.java b/core/java/android/os/HwBinder.java
index 5e2a081..ecac002 100644
--- a/core/java/android/os/HwBinder.java
+++ b/core/java/android/os/HwBinder.java
@@ -16,16 +16,20 @@
 
 package android.os;
 
+import android.annotation.SystemApi;
+
 import libcore.util.NativeAllocationRegistry;
 
 import java.util.NoSuchElementException;
 
 /** @hide */
+@SystemApi
 public abstract class HwBinder implements IHwBinder {
     private static final String TAG = "HwBinder";
 
     private static final NativeAllocationRegistry sNativeRegistry;
 
+    /** @hide */
     public HwBinder() {
         native_setup();
 
@@ -34,33 +38,55 @@
                 mNativeContext);
     }
 
+    /** @hide */
     @Override
     public final native void transact(
             int code, HwParcel request, HwParcel reply, int flags)
         throws RemoteException;
 
+    /** @hide */
     public abstract void onTransact(
             int code, HwParcel request, HwParcel reply, int flags)
         throws RemoteException;
 
+    /** @hide */
     public native final void registerService(String serviceName)
         throws RemoteException;
 
+    /** @hide */
     public static final IHwBinder getService(
             String iface,
             String serviceName)
         throws RemoteException, NoSuchElementException {
         return getService(iface, serviceName, false /* retry */);
     }
+    /** @hide */
     public static native final IHwBinder getService(
             String iface,
             String serviceName,
             boolean retry)
         throws RemoteException, NoSuchElementException;
 
+    /**
+     * Configures how many threads the process-wide hwbinder threadpool
+     * has to process incoming requests.
+     *
+     * @hide
+     */
+    @SystemApi
     public static native final void configureRpcThreadpool(
             long maxThreads, boolean callerWillJoin);
 
+    /**
+     * Current thread will join hwbinder threadpool and process
+     * commands in the pool. Should be called after configuring
+     * a threadpool with callerWillJoin true and then registering
+     * the provided service if this thread doesn't need to do
+     * anything else.
+     *
+     * @hide
+     */
+    @SystemApi
     public static native final void joinRpcThreadpool();
 
     // Returns address of the "freeFunction".
@@ -83,6 +109,7 @@
 
     /**
      * Notifies listeners that a system property has changed
+     * @hide
      */
     public static void reportSyspropChanged() {
         native_report_sysprop_change();
diff --git a/core/java/android/os/HwBlob.java b/core/java/android/os/HwBlob.java
index 5e9b9ae3..405651e 100644
--- a/core/java/android/os/HwBlob.java
+++ b/core/java/android/os/HwBlob.java
@@ -17,10 +17,17 @@
 package android.os;
 
 import android.annotation.NonNull;
+import android.annotation.SystemApi;
 
 import libcore.util.NativeAllocationRegistry;
 
-/** @hide */
+/**
+ * Represents fixed sized allocation of marshalled data used. Helper methods
+ * allow for access to the unmarshalled data in a variety of ways.
+ *
+ * @hide
+ */
+@SystemApi
 public class HwBlob {
     private static final String TAG = "HwBlob";
 
@@ -34,48 +41,276 @@
                 mNativeContext);
     }
 
+    /**
+     * @param offset offset to unmarshall a boolean from
+     * @return the unmarshalled boolean value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final boolean getBool(long offset);
+    /**
+     * @param offset offset to unmarshall a byte from
+     * @return the unmarshalled byte value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final byte getInt8(long offset);
+    /**
+     * @param offset offset to unmarshall a short from
+     * @return the unmarshalled short value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final short getInt16(long offset);
+    /**
+     * @param offset offset to unmarshall an int from
+     * @return the unmarshalled int value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final int getInt32(long offset);
+    /**
+     * @param offset offset to unmarshall a long from
+     * @return the unmarshalled long value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final long getInt64(long offset);
+    /**
+     * @param offset offset to unmarshall a float from
+     * @return the unmarshalled float value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final float getFloat(long offset);
+    /**
+     * @param offset offset to unmarshall a double from
+     * @return the unmarshalled double value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final double getDouble(long offset);
+    /**
+     * @param offset offset to unmarshall a string from
+     * @return the unmarshalled string value
+     * @throws IndexOutOfBoundsException when offset is out of this HwBlob
+     */
     public native final String getString(long offset);
 
     /**
-      The copyTo... methods copy the blob's data, starting from the given
-      byte offset, into the array. A total of "size" _elements_ are copied.
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jboolean)] out of the blob.
      */
     public native final void copyToBoolArray(long offset, boolean[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jbyte)] out of the blob.
+     */
     public native final void copyToInt8Array(long offset, byte[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jshort)] out of the blob.
+     */
     public native final void copyToInt16Array(long offset, short[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jint)] out of the blob.
+     */
     public native final void copyToInt32Array(long offset, int[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jlong)] out of the blob.
+     */
     public native final void copyToInt64Array(long offset, long[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jfloat)] out of the blob.
+     */
     public native final void copyToFloatArray(long offset, float[] array, int size);
+    /**
+     * Copy the blobs data starting from the given byte offset into the range, copying
+     * a total of size elements.
+     *
+     * @param offset starting location in blob
+     * @param array destination array
+     * @param size total number of elements to copy
+     * @throws IllegalArgumentException array.length < size
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jdouble)] out of the blob.
+     */
     public native final void copyToDoubleArray(long offset, double[] array, int size);
 
+    /**
+     * Writes a boolean value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jboolean)] is out of range
+     */
     public native final void putBool(long offset, boolean x);
+    /**
+     * Writes a byte value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jbyte)] is out of range
+     */
     public native final void putInt8(long offset, byte x);
+    /**
+     * Writes a short value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jshort)] is out of range
+     */
     public native final void putInt16(long offset, short x);
+    /**
+     * Writes a int value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jint)] is out of range
+     */
     public native final void putInt32(long offset, int x);
+    /**
+     * Writes a long value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jlong)] is out of range
+     */
     public native final void putInt64(long offset, long x);
+    /**
+     * Writes a float value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jfloat)] is out of range
+     */
     public native final void putFloat(long offset, float x);
+    /**
+     * Writes a double value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jdouble)] is out of range
+     */
     public native final void putDouble(long offset, double x);
+    /**
+     * Writes a string value at an offset.
+     *
+     * @param offset location to write value
+     * @param x value to write
+     * @throws IndexOutOfBoundsException when [offset, offset + sizeof(jstring)] is out of range
+     */
     public native final void putString(long offset, String x);
 
+    /**
+     * Put a boolean array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jboolean)] out of the blob.
+     */
     public native final void putBoolArray(long offset, boolean[] x);
+    /**
+     * Put a byte array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jbyte)] out of the blob.
+     */
     public native final void putInt8Array(long offset, byte[] x);
+    /**
+     * Put a short array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jshort)] out of the blob.
+     */
     public native final void putInt16Array(long offset, short[] x);
+    /**
+     * Put a int array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jint)] out of the blob.
+     */
     public native final void putInt32Array(long offset, int[] x);
+    /**
+     * Put a long array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jlong)] out of the blob.
+     */
     public native final void putInt64Array(long offset, long[] x);
+    /**
+     * Put a float array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jfloat)] out of the blob.
+     */
     public native final void putFloatArray(long offset, float[] x);
+    /**
+     * Put a double array contiguously at an offset in the blob.
+     *
+     * @param offset location to write values
+     * @param x array to write
+     * @throws IndexOutOfBoundsException [offset, offset + size * sizeof(jdouble)] out of the blob.
+     */
     public native final void putDoubleArray(long offset, double[] x);
 
+    /**
+     * Write another HwBlob into this blob at the specified location.
+     *
+     * @param offset location to write value
+     * @param blob data to write
+     * @throws IndexOutOfBoundsException if [offset, offset + blob's size] outside of the range of
+     *     this blob.
+     */
     public native final void putBlob(long offset, HwBlob blob);
 
+    /**
+     * @return current handle of HwBlob for reference in a parcelled binder transaction
+     */
     public native final long handle();
 
+    /**
+     * Convert a primitive to a wrapped array for boolean.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Boolean[] wrapArray(@NonNull boolean[] array) {
         final int n = array.length;
         Boolean[] wrappedArray = new Boolean[n];
@@ -85,6 +320,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for long.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Long[] wrapArray(@NonNull long[] array) {
         final int n = array.length;
         Long[] wrappedArray = new Long[n];
@@ -94,6 +335,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for byte.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Byte[] wrapArray(@NonNull byte[] array) {
         final int n = array.length;
         Byte[] wrappedArray = new Byte[n];
@@ -103,6 +350,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for short.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Short[] wrapArray(@NonNull short[] array) {
         final int n = array.length;
         Short[] wrappedArray = new Short[n];
@@ -112,6 +365,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for int.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Integer[] wrapArray(@NonNull int[] array) {
         final int n = array.length;
         Integer[] wrappedArray = new Integer[n];
@@ -121,6 +380,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for float.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Float[] wrapArray(@NonNull float[] array) {
         final int n = array.length;
         Float[] wrappedArray = new Float[n];
@@ -130,6 +395,12 @@
         return wrappedArray;
     }
 
+    /**
+     * Convert a primitive to a wrapped array for double.
+     *
+     * @param array from array
+     * @return transformed array
+     */
     public static Double[] wrapArray(@NonNull double[] array) {
         final int n = array.length;
         Double[] wrappedArray = new Double[n];
diff --git a/core/java/android/os/HwParcel.java b/core/java/android/os/HwParcel.java
index 4ba1144..0eb62c95 100644
--- a/core/java/android/os/HwParcel.java
+++ b/core/java/android/os/HwParcel.java
@@ -16,17 +16,32 @@
 
 package android.os;
 
-import java.util.ArrayList;
-import java.util.Arrays;
+import android.annotation.IntDef;
+import android.annotation.SystemApi;
 
 import libcore.util.NativeAllocationRegistry;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.ArrayList;
+import java.util.Arrays;
+
 /** @hide */
+@SystemApi
 public class HwParcel {
     private static final String TAG = "HwParcel";
 
+    @IntDef(prefix = { "STATUS_" }, value = {
+        STATUS_SUCCESS,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Status {}
+
+    /**
+     * Success return error for a transaction. Written to parcels
+     * using writeStatus.
+     */
     public static final int STATUS_SUCCESS      = 0;
-    public static final int STATUS_ERROR        = -1;
 
     private static final NativeAllocationRegistry sNativeRegistry;
 
@@ -38,6 +53,9 @@
                 mNativeContext);
     }
 
+    /**
+     * Creates an initialized and empty parcel.
+     */
     public HwParcel() {
         native_setup(true /* allocate */);
 
@@ -46,25 +64,106 @@
                 mNativeContext);
     }
 
+    /**
+     * Writes an interface token into the parcel used to verify that
+     * a transaction has made it to the write type of interface.
+     *
+     * @param interfaceName fully qualified name of interface message
+     *     is being sent to.
+     */
     public native final void writeInterfaceToken(String interfaceName);
+    /**
+     * Writes a boolean value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeBool(boolean val);
+    /**
+     * Writes a byte value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeInt8(byte val);
+    /**
+     * Writes a short value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeInt16(short val);
+    /**
+     * Writes a int value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeInt32(int val);
+    /**
+     * Writes a long value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeInt64(long val);
+    /**
+     * Writes a float value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeFloat(float val);
+    /**
+     * Writes a double value to the end of the parcel.
+     * @param val to write
+     */
     public native final void writeDouble(double val);
+    /**
+     * Writes a String value to the end of the parcel.
+     *
+     * Note, this will be converted to UTF-8 when it is written.
+     *
+     * @param val to write
+     */
     public native final void writeString(String val);
 
+    /**
+     * Writes an array of boolean values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeBoolVector(boolean[] val);
+    /**
+     * Writes an array of byte values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeInt8Vector(byte[] val);
+    /**
+     * Writes an array of short values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeInt16Vector(short[] val);
+    /**
+     * Writes an array of int values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeInt32Vector(int[] val);
+    /**
+     * Writes an array of long values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeInt64Vector(long[] val);
+    /**
+     * Writes an array of float values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeFloatVector(float[] val);
+    /**
+     * Writes an array of double values to the end of the parcel.
+     * @param val to write
+     */
     private native final void writeDoubleVector(double[] val);
+    /**
+     * Writes an array of String values to the end of the parcel.
+     *
+     * Note, these will be converted to UTF-8 as they are written.
+     *
+     * @param val to write
+     */
     private native final void writeStringVector(String[] val);
 
+    /**
+     * Helper method to write a list of Booleans to val.
+     * @param val list to write
+     */
     public final void writeBoolVector(ArrayList<Boolean> val) {
         final int n = val.size();
         boolean[] array = new boolean[n];
@@ -75,6 +174,10 @@
         writeBoolVector(array);
     }
 
+    /**
+     * Helper method to write a list of Booleans to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeInt8Vector(ArrayList<Byte> val) {
         final int n = val.size();
         byte[] array = new byte[n];
@@ -85,6 +188,10 @@
         writeInt8Vector(array);
     }
 
+    /**
+     * Helper method to write a list of Shorts to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeInt16Vector(ArrayList<Short> val) {
         final int n = val.size();
         short[] array = new short[n];
@@ -95,6 +202,10 @@
         writeInt16Vector(array);
     }
 
+    /**
+     * Helper method to write a list of Integers to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeInt32Vector(ArrayList<Integer> val) {
         final int n = val.size();
         int[] array = new int[n];
@@ -105,6 +216,10 @@
         writeInt32Vector(array);
     }
 
+    /**
+     * Helper method to write a list of Longs to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeInt64Vector(ArrayList<Long> val) {
         final int n = val.size();
         long[] array = new long[n];
@@ -115,6 +230,10 @@
         writeInt64Vector(array);
     }
 
+    /**
+     * Helper method to write a list of Floats to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeFloatVector(ArrayList<Float> val) {
         final int n = val.size();
         float[] array = new float[n];
@@ -125,6 +244,10 @@
         writeFloatVector(array);
     }
 
+    /**
+     * Helper method to write a list of Doubles to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeDoubleVector(ArrayList<Double> val) {
         final int n = val.size();
         double[] array = new double[n];
@@ -135,93 +258,272 @@
         writeDoubleVector(array);
     }
 
+    /**
+     * Helper method to write a list of Strings to the end of the parcel.
+     * @param val list to write
+     */
     public final void writeStringVector(ArrayList<String> val) {
         writeStringVector(val.toArray(new String[val.size()]));
     }
 
+    /**
+     * Write a hwbinder object to the end of the parcel.
+     * @param binder value to write
+     */
     public native final void writeStrongBinder(IHwBinder binder);
 
+    /**
+     * Checks to make sure that the interface name matches the name written by the parcel
+     * sender by writeInterfaceToken
+     *
+     * @throws SecurityException interface doesn't match
+     */
     public native final void enforceInterface(String interfaceName);
+
+    /**
+     * Reads a boolean value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final boolean readBool();
+    /**
+     * Reads a byte value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final byte readInt8();
+    /**
+     * Reads a short value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final short readInt16();
+    /**
+     * Reads a int value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final int readInt32();
+    /**
+     * Reads a long value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final long readInt64();
+    /**
+     * Reads a float value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final float readFloat();
+    /**
+     * Reads a double value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final double readDouble();
+    /**
+     * Reads a String value from the current location in the parcel.
+     * @return value parsed from the parcel
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final String readString();
 
+    /**
+     * Reads an array of boolean values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final boolean[] readBoolVectorAsArray();
+    /**
+     * Reads an array of byte values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final byte[] readInt8VectorAsArray();
+    /**
+     * Reads an array of short values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final short[] readInt16VectorAsArray();
+    /**
+     * Reads an array of int values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final int[] readInt32VectorAsArray();
+    /**
+     * Reads an array of long values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final long[] readInt64VectorAsArray();
+    /**
+     * Reads an array of float values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final float[] readFloatVectorAsArray();
+    /**
+     * Reads an array of double values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final double[] readDoubleVectorAsArray();
+    /**
+     * Reads an array of String values from the parcel.
+     * @return array of parsed values
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     private native final String[] readStringVectorAsArray();
 
+    /**
+     * Convenience method to read a Boolean vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Boolean> readBoolVector() {
         Boolean[] array = HwBlob.wrapArray(readBoolVectorAsArray());
 
         return new ArrayList<Boolean>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Byte vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Byte> readInt8Vector() {
         Byte[] array = HwBlob.wrapArray(readInt8VectorAsArray());
 
         return new ArrayList<Byte>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Short vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Short> readInt16Vector() {
         Short[] array = HwBlob.wrapArray(readInt16VectorAsArray());
 
         return new ArrayList<Short>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Integer vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Integer> readInt32Vector() {
         Integer[] array = HwBlob.wrapArray(readInt32VectorAsArray());
 
         return new ArrayList<Integer>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Long vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Long> readInt64Vector() {
         Long[] array = HwBlob.wrapArray(readInt64VectorAsArray());
 
         return new ArrayList<Long>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Float vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Float> readFloatVector() {
         Float[] array = HwBlob.wrapArray(readFloatVectorAsArray());
 
         return new ArrayList<Float>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a Double vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<Double> readDoubleVector() {
         Double[] array = HwBlob.wrapArray(readDoubleVectorAsArray());
 
         return new ArrayList<Double>(Arrays.asList(array));
     }
 
+    /**
+     * Convenience method to read a String vector as an ArrayList.
+     * @return array of parsed values.
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public final ArrayList<String> readStringVector() {
         return new ArrayList<String>(Arrays.asList(readStringVectorAsArray()));
     }
 
+    /**
+     * Reads a strong binder value from the parcel.
+     * @return binder object read from parcel or null if no binder can be read
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final IHwBinder readStrongBinder();
 
-    // Handle is stored as part of the blob.
+    /**
+     * Read opaque segment of data as a blob.
+     * @return blob of size expectedSize
+     * @throws IllegalArgumentException if the parcel has no more data
+     */
     public native final HwBlob readBuffer(long expectedSize);
 
+    /**
+     * Read a buffer written using scatter gather.
+     *
+     * @param expectedSize size that buffer should be
+     * @param parentHandle handle from which to read the embedded buffer
+     * @param offset offset into parent
+     * @param nullable whether or not to allow for a null return
+     * @return blob of data with size expectedSize
+     * @throws NoSuchElementException if an embedded buffer is not available to read
+     * @throws IllegalArgumentException if expectedSize < 0
+     * @throws NullPointerException if the transaction specified the blob to be null
+     *    but nullable is false
+     */
     public native final HwBlob readEmbeddedBuffer(
             long expectedSize, long parentHandle, long offset,
             boolean nullable);
 
+    /**
+     * Write a buffer into the transaction.
+     * @param blob blob to write into the parcel.
+     */
     public native final void writeBuffer(HwBlob blob);
-
+    /**
+     * Write a status value into the blob.
+     * @param status value to write
+     */
     public native final void writeStatus(int status);
+    /**
+     * @throws IllegalArgumentException if a success vaue cannot be read
+     * @throws RemoteException if success value indicates a transaction error
+     */
     public native final void verifySuccess();
+    /**
+     * Should be called to reduce memory pressure when this object no longer needs
+     * to be written to.
+     */
     public native final void releaseTemporaryStorage();
+    /**
+     * Should be called when object is no longer needed to reduce possible memory
+     * pressure if the Java GC does not get to this object in time.
+     */
     public native final void release();
 
+    /**
+     * Sends the parcel to the specified destination.
+     */
     public native final void send();
 
     // Returns address of the "freeFunction".
diff --git a/core/java/android/os/IHwBinder.java b/core/java/android/os/IHwBinder.java
index 619f4dc..ce9f6c1 100644
--- a/core/java/android/os/IHwBinder.java
+++ b/core/java/android/os/IHwBinder.java
@@ -16,26 +16,47 @@
 
 package android.os;
 
+import android.annotation.SystemApi;
+
 /** @hide */
+@SystemApi
 public interface IHwBinder {
     // These MUST match their corresponding libhwbinder/IBinder.h definition !!!
+    /** @hide */
     public static final int FIRST_CALL_TRANSACTION = 1;
+    /** @hide */
     public static final int FLAG_ONEWAY = 1;
 
+    /** @hide */
     public void transact(
             int code, HwParcel request, HwParcel reply, int flags)
         throws RemoteException;
 
+    /** @hide */
     public IHwInterface queryLocalInterface(String descriptor);
 
     /**
      * Interface for receiving a callback when the process hosting a service
      * has gone away.
      */
+    @SystemApi
     public interface DeathRecipient {
+        /**
+         * Callback for a registered process dying.
+         */
+        @SystemApi
         public void serviceDied(long cookie);
     }
 
+    /**
+     * Notifies the death recipient with the cookie when the process containing
+     * this binder dies.
+     */
+    @SystemApi
     public boolean linkToDeath(DeathRecipient recipient, long cookie);
+    /**
+     * Unregisters the death recipient from this binder.
+     */
+    @SystemApi
     public boolean unlinkToDeath(DeathRecipient recipient);
 }
diff --git a/core/java/android/os/IHwInterface.java b/core/java/android/os/IHwInterface.java
index 7c5ac6f..a2f59a9 100644
--- a/core/java/android/os/IHwInterface.java
+++ b/core/java/android/os/IHwInterface.java
@@ -16,7 +16,13 @@
 
 package android.os;
 
+import android.annotation.SystemApi;
 /** @hide */
+@SystemApi
 public interface IHwInterface {
+    /**
+     * Returns the binder object that corresponds to an interface.
+     */
+    @SystemApi
     public IHwBinder asBinder();
 }
diff --git a/core/java/android/os/IPowerManager.aidl b/core/java/android/os/IPowerManager.aidl
index 75f7c1f..1681f11 100644
--- a/core/java/android/os/IPowerManager.aidl
+++ b/core/java/android/os/IPowerManager.aidl
@@ -63,11 +63,6 @@
     // --- deprecated ---
     boolean isScreenBrightnessBoosted();
 
-    // temporarily overrides the screen brightness settings to allow the user to
-    // see the effect of a settings change without applying it immediately
-    void setTemporaryScreenBrightnessSettingOverride(int brightness);
-    void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj);
-
     // sets the attention light (used by phone app only)
     void setAttentionLight(boolean on, int color);
 }
diff --git a/core/java/android/os/IStatsCompanionService.aidl b/core/java/android/os/IStatsCompanionService.aidl
index 1d2a408..8a27700 100644
--- a/core/java/android/os/IStatsCompanionService.aidl
+++ b/core/java/android/os/IStatsCompanionService.aidl
@@ -16,6 +16,7 @@
 
 package android.os;
 
+import android.os.StatsDimensionsValue;
 import android.os.StatsLogEventWrapper;
 
 /**
@@ -55,8 +56,17 @@
     StatsLogEventWrapper[] pullData(int pullCode);
 
     /** Send a broadcast to the specified pkg and class that it should getData now. */
+    // TODO: Rename this and use a pending intent instead.
     oneway void sendBroadcast(String pkg, String cls);
 
+    /**
+     * Requests StatsCompanionService to send a broadcast using the given intentSender
+     * (which should cast to an IIntentSender), along with the other information specified.
+     */
+    oneway void sendSubscriberBroadcast(in IBinder intentSender, long configUid, long configId,
+                                        long subscriptionId, long subscriptionRuleId,
+                                        in StatsDimensionsValue dimensionsValue);
+
     /** Tells StatsCompaionService to grab the uid map snapshot and send it to statsd. */
     oneway void triggerUidSnapshot();
 }
diff --git a/core/java/android/os/IStatsManager.aidl b/core/java/android/os/IStatsManager.aidl
index 29812e8..679b49d 100644
--- a/core/java/android/os/IStatsManager.aidl
+++ b/core/java/android/os/IStatsManager.aidl
@@ -81,7 +81,7 @@
     /**
      * Sets a configuration with the specified config key and subscribes to updates for this
      * configuration key. Broadcasts will be sent if this configuration needs to be collected.
-     * The configuration must be a wire-encoded StatsDConfig. The caller specifies the name of the
+     * The configuration must be a wire-encoded StatsdConfig. The caller specifies the name of the
      * package and class that should receive these broadcasts.
      *
      * Returns if this configuration was correctly registered.
@@ -95,4 +95,33 @@
      * Returns if this configuration key was removed.
      */
     boolean removeConfiguration(in long configKey);
+
+    /**
+     * Set the IIntentSender (i.e. PendingIntent) to be used when broadcasting subscriber
+     * information to the given subscriberId within the given config.
+     *
+     * Suppose that the calling uid has added a config with key configKey, and that in this config
+     * it is specified that when a particular anomaly is detected, a broadcast should be sent to
+     * a BroadcastSubscriber with id subscriberId. This function links the given intentSender with
+     * that subscriberId (for that config), so that this intentSender is used to send the broadcast
+     * when the anomaly is detected.
+     *
+     * This function can only be called by the owner (uid) of the config. It must be called each
+     * time statsd starts. Later calls overwrite previous calls; only one intentSender is stored.
+     *
+     * intentSender must be convertible into an IntentSender using IntentSender(IBinder)
+     * and cannot be null.
+     *
+     * Returns true if successful.
+     */
+    boolean setBroadcastSubscriber(long configKey, long subscriberId, in IBinder intentSender);
+
+    /**
+     * Undoes setBroadcastSubscriber() for the (configKey, subscriberId) pair.
+     * Any broadcasts associated with subscriberId will henceforth not be sent.
+     * No-op if this (configKey, subsriberId) pair was not associated with an IntentSender.
+     *
+     * Returns true if successful.
+     */
+    boolean unsetBroadcastSubscriber(long configKey, long subscriberId);
 }
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index 61172e1..3d17ffb 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -1001,24 +1001,6 @@
         return false;
     }
 
-    /**
-     * Sets the brightness of the backlights (screen, keyboard, button).
-     * <p>
-     * Requires the {@link android.Manifest.permission#DEVICE_POWER} permission.
-     * </p>
-     *
-     * @param brightness The brightness value from 0 to 255.
-     *
-     * @hide Requires signature permission.
-     */
-    public void setBacklightBrightness(int brightness) {
-        try {
-            mService.setTemporaryScreenBrightnessSettingOverride(brightness);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
    /**
      * Returns true if the specified wake lock level is supported.
      *
diff --git a/core/java/android/os/StatsDimensionsValue.aidl b/core/java/android/os/StatsDimensionsValue.aidl
new file mode 100644
index 0000000..81a14a4
--- /dev/null
+++ b/core/java/android/os/StatsDimensionsValue.aidl
@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2018, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.os;
+
+/** @hide */
+parcelable StatsDimensionsValue cpp_header "android/os/StatsDimensionsValue.h";
\ No newline at end of file
diff --git a/core/java/android/os/StatsDimensionsValue.java b/core/java/android/os/StatsDimensionsValue.java
new file mode 100644
index 0000000..257cc52
--- /dev/null
+++ b/core/java/android/os/StatsDimensionsValue.java
@@ -0,0 +1,353 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.os;
+
+import android.annotation.SystemApi;
+import android.util.Slog;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Container for statsd dimension value information, corresponding to a
+ * stats_log.proto's DimensionValue.
+ *
+ * This consists of a field (an int representing a statsd atom field)
+ * and a value (which may be one of a number of types).
+ *
+ * <p>
+ * Only a single value is held, and it is necessarily one of the following types:
+ * {@link String}, int, long, boolean, float,
+ * or tuple (i.e. {@link List} of {@code StatsDimensionsValue}).
+ *
+ * The type of value held can be retrieved using {@link #getValueType()}, which returns one of the
+ * following ints, depending on the type of value:
+ * <ul>
+ *  <li>{@link #STRING_VALUE_TYPE}</li>
+ *  <li>{@link #INT_VALUE_TYPE}</li>
+ *  <li>{@link #LONG_VALUE_TYPE}</li>
+ *  <li>{@link #BOOLEAN_VALUE_TYPE}</li>
+ *  <li>{@link #FLOAT_VALUE_TYPE}</li>
+ *  <li>{@link #TUPLE_VALUE_TYPE}</li>
+ * </ul>
+ * Alternatively, this can be determined using {@link #isValueType(int)} with one of these constants
+ * as a parameter.
+ * The value itself can be retrieved using the correct get...Value() function for its type.
+ *
+ * <p>
+ * The field is always an int, and always exists; it can be obtained using {@link #getField()}.
+ *
+ *
+ * @hide
+ */
+@SystemApi
+public final class StatsDimensionsValue implements Parcelable {
+    private static final String TAG = "StatsDimensionsValue";
+
+    // Values of the value type correspond to stats_log.proto's DimensionValue fields.
+    // Keep constants in sync with services/include/android/os/StatsDimensionsValue.h.
+    /** Indicates that this holds a String. */
+    public static final int STRING_VALUE_TYPE = 2;
+    /** Indicates that this holds an int. */
+    public static final int INT_VALUE_TYPE = 3;
+    /** Indicates that this holds a long. */
+    public static final int LONG_VALUE_TYPE = 4;
+    /** Indicates that this holds a boolean. */
+    public static final int BOOLEAN_VALUE_TYPE = 5;
+    /** Indicates that this holds a float. */
+    public static final int FLOAT_VALUE_TYPE = 6;
+    /** Indicates that this holds a List of StatsDimensionsValues. */
+    public static final int TUPLE_VALUE_TYPE = 7;
+
+    /** Value of a stats_log.proto DimensionsValue.field. */
+    private final int mField;
+
+    /** Type of stats_log.proto DimensionsValue.value, according to the VALUE_TYPEs above. */
+    private final int mValueType;
+
+    /**
+     * Value of a stats_log.proto DimensionsValue.value.
+     * String, Integer, Long, Boolean, Float, or StatsDimensionsValue[].
+     */
+    private final Object mValue; // immutable or array of immutables
+
+    /**
+     * Creates a {@code StatsDimensionValue} from a parcel.
+     *
+     * @hide
+     */
+    public StatsDimensionsValue(Parcel in) {
+        mField = in.readInt();
+        mValueType = in.readInt();
+        mValue = readValueFromParcel(mValueType, in);
+    }
+
+    /**
+     * Return the field, i.e. the tag of a statsd atom.
+     *
+     * @return the field
+     */
+    public int getField() {
+        return mField;
+    }
+
+    /**
+     * Retrieve the String held, if any.
+     *
+     * @return the {@link String} held if {@link #getValueType()} == {@link #STRING_VALUE_TYPE},
+     *         null otherwise
+     */
+    public String getStringValue() {
+        try {
+            if (mValueType == STRING_VALUE_TYPE) return (String) mValue;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return null;
+    }
+
+    /**
+     * Retrieve the int held, if any.
+     *
+     * @return the int held if {@link #getValueType()} == {@link #INT_VALUE_TYPE}, 0 otherwise
+     */
+    public int getIntValue() {
+        try {
+            if (mValueType == INT_VALUE_TYPE) return (Integer) mValue;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return 0;
+    }
+
+    /**
+     * Retrieve the long held, if any.
+     *
+     * @return the long held if {@link #getValueType()} == {@link #LONG_VALUE_TYPE}, 0 otherwise
+     */
+    public long getLongValue() {
+        try {
+            if (mValueType == LONG_VALUE_TYPE) return (Long) mValue;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return 0;
+    }
+
+    /**
+     * Retrieve the boolean held, if any.
+     *
+     * @return the boolean held if {@link #getValueType()} == {@link #BOOLEAN_VALUE_TYPE},
+     *         false otherwise
+     */
+    public boolean getBooleanValue() {
+        try {
+            if (mValueType == BOOLEAN_VALUE_TYPE) return (Boolean) mValue;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return false;
+    }
+
+    /**
+     * Retrieve the float held, if any.
+     *
+     * @return the float held if {@link #getValueType()} == {@link #FLOAT_VALUE_TYPE}, 0 otherwise
+     */
+    public float getFloatValue() {
+        try {
+            if (mValueType == FLOAT_VALUE_TYPE) return (Float) mValue;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return 0;
+    }
+
+    /**
+     * Retrieve the tuple, in the form of a {@link List} of {@link StatsDimensionsValue}, held,
+     * if any.
+     *
+     * @return the {@link List} of {@link StatsDimensionsValue} held
+     *         if {@link #getValueType()} == {@link #TUPLE_VALUE_TYPE},
+     *         null otherwise
+     */
+    public List<StatsDimensionsValue> getTupleValueList() {
+        if (mValueType != TUPLE_VALUE_TYPE) {
+            return null;
+        }
+        try {
+            StatsDimensionsValue[] orig = (StatsDimensionsValue[]) mValue;
+            List<StatsDimensionsValue> copy = new ArrayList<>(orig.length);
+            // Shallow copy since StatsDimensionsValue is immutable anyway
+            for (int i = 0; i < orig.length; i++) {
+                copy.add(orig[i]);
+            }
+            return copy;
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+            return null;
+        }
+    }
+
+    /**
+     * Returns the constant representing the type of value stored, namely one of
+     * <ul>
+     *   <li>{@link #STRING_VALUE_TYPE}</li>
+     *   <li>{@link #INT_VALUE_TYPE}</li>
+     *   <li>{@link #LONG_VALUE_TYPE}</li>
+     *   <li>{@link #BOOLEAN_VALUE_TYPE}</li>
+     *   <li>{@link #FLOAT_VALUE_TYPE}</li>
+     *   <li>{@link #TUPLE_VALUE_TYPE}</li>
+     * </ul>
+     *
+     * @return the constant representing the type of value stored
+     */
+    public int getValueType() {
+        return mValueType;
+    }
+
+    /**
+     * Returns whether the type of value stored is equal to the given type.
+     *
+     * @param valueType int representing the type of value stored, as used in {@link #getValueType}
+     * @return true if {@link #getValueType()} is equal to {@code valueType}.
+     */
+    public boolean isValueType(int valueType) {
+        return mValueType == valueType;
+    }
+
+    /**
+     * Returns a String representing the information in this StatsDimensionValue.
+     * No guarantees are made about the format of this String.
+     *
+     * @return String representation
+     *
+     * @hide
+     */
+    // Follows the format of statsd's dimension.h toString.
+    public String toString() {
+        try {
+            StringBuilder sb = new StringBuilder();
+            sb.append(mField);
+            sb.append(":");
+            if (mValueType == TUPLE_VALUE_TYPE) {
+                sb.append("{");
+                StatsDimensionsValue[] sbvs = (StatsDimensionsValue[]) mValue;
+                for (int i = 0; i < sbvs.length; i++) {
+                    sb.append(sbvs[i].toString());
+                    sb.append("|");
+                }
+                sb.append("}");
+            } else {
+                sb.append(mValue.toString());
+            }
+            return sb.toString();
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "Failed to successfully get value", e);
+        }
+        return "";
+    }
+
+    /**
+     * Parcelable Creator for StatsDimensionsValue.
+     */
+    public static final Parcelable.Creator<StatsDimensionsValue> CREATOR = new
+            Parcelable.Creator<StatsDimensionsValue>() {
+                public StatsDimensionsValue createFromParcel(Parcel in) {
+                    return new StatsDimensionsValue(in);
+                }
+
+                public StatsDimensionsValue[] newArray(int size) {
+                    return new StatsDimensionsValue[size];
+                }
+            };
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flags) {
+        out.writeInt(mField);
+        out.writeInt(mValueType);
+        writeValueToParcel(mValueType, mValue, out, flags);
+    }
+
+    /** Writes mValue to a parcel. Returns true if succeeds. */
+    private static boolean writeValueToParcel(int valueType, Object value, Parcel out, int flags) {
+        try {
+            switch (valueType) {
+                case STRING_VALUE_TYPE:
+                    out.writeString((String) value);
+                    return true;
+                case INT_VALUE_TYPE:
+                    out.writeInt((Integer) value);
+                    return true;
+                case LONG_VALUE_TYPE:
+                    out.writeLong((Long) value);
+                    return true;
+                case BOOLEAN_VALUE_TYPE:
+                    out.writeBoolean((Boolean) value);
+                    return true;
+                case FLOAT_VALUE_TYPE:
+                    out.writeFloat((Float) value);
+                    return true;
+                case TUPLE_VALUE_TYPE: {
+                    StatsDimensionsValue[] values = (StatsDimensionsValue[]) value;
+                    out.writeInt(values.length);
+                    for (int i = 0; i < values.length; i++) {
+                        values[i].writeToParcel(out, flags);
+                    }
+                    return true;
+                }
+                default:
+                    Slog.w(TAG, "readValue of an impossible type " + valueType);
+                    return false;
+            }
+        } catch (ClassCastException e) {
+            Slog.w(TAG, "writeValue cast failed", e);
+            return false;
+        }
+    }
+
+    /** Reads mValue from a parcel. */
+    private static Object readValueFromParcel(int valueType, Parcel parcel) {
+        switch (valueType) {
+            case STRING_VALUE_TYPE:
+                return parcel.readString();
+            case INT_VALUE_TYPE:
+                return parcel.readInt();
+            case LONG_VALUE_TYPE:
+                return parcel.readLong();
+            case BOOLEAN_VALUE_TYPE:
+                return parcel.readBoolean();
+            case FLOAT_VALUE_TYPE:
+                return parcel.readFloat();
+            case TUPLE_VALUE_TYPE: {
+                final int sz = parcel.readInt();
+                StatsDimensionsValue[] values = new StatsDimensionsValue[sz];
+                for (int i = 0; i < sz; i++) {
+                    values[i] = new StatsDimensionsValue(parcel);
+                }
+                return values;
+            }
+            default:
+                Slog.w(TAG, "readValue of an impossible type " + valueType);
+                return null;
+        }
+    }
+}
diff --git a/core/java/android/os/WorkSource.java b/core/java/android/os/WorkSource.java
index d0c2870..d592000 100644
--- a/core/java/android/os/WorkSource.java
+++ b/core/java/android/os/WorkSource.java
@@ -1,7 +1,10 @@
 package android.os;
 
 import android.annotation.Nullable;
+import android.content.Context;
 import android.os.WorkSourceProto;
+import android.provider.Settings;
+import android.provider.Settings.Global;
 import android.util.Log;
 import android.util.proto.ProtoOutputStream;
 
@@ -109,6 +112,17 @@
         }
     }
 
+    /**
+     * Whether system services should create {@code WorkChains} (wherever possible) in the place
+     * of flat UID lists.
+     *
+     * @hide
+     */
+    public static boolean isChainedBatteryAttributionEnabled(Context context) {
+        return Settings.Global.getInt(context.getContentResolver(),
+                Global.CHAINED_BATTERY_ATTRIBUTION_ENABLED, 0) == 1;
+    }
+
     /** @hide */
     public int size() {
         return mNum;
@@ -479,6 +493,29 @@
         return mChains;
     }
 
+    /**
+     * DO NOT USE: Hacky API provided solely for {@code GnssLocationProvider}. See
+     * {@code setReturningDiffs} as well.
+     *
+     * @hide
+     */
+    public void transferWorkChains(WorkSource other) {
+        if (mChains != null) {
+            mChains.clear();
+        }
+
+        if (other.mChains == null || other.mChains.isEmpty()) {
+            return;
+        }
+
+        if (mChains == null) {
+            mChains = new ArrayList<>(4);
+        }
+
+        mChains.addAll(other.mChains);
+        other.mChains.clear();
+    }
+
     private boolean removeUids(WorkSource other) {
         int N1 = mNum;
         final int[] uids1 = mUids;
@@ -866,6 +903,13 @@
             return mUids[0];
         }
 
+        /**
+         * Return the tag associated with the attribution UID. See (@link #getAttributionUid}.
+         */
+        public String getAttributionTag() {
+            return mTags[0];
+        }
+
         // TODO: The following three trivial getters are purely for testing and will be removed
         // once we have higher level logic in place, e.g for serializing this WorkChain to a proto,
         // diffing it etc.
diff --git a/core/java/android/provider/DocumentsContract.java b/core/java/android/provider/DocumentsContract.java
index e7fd59e..d96316a 100644
--- a/core/java/android/provider/DocumentsContract.java
+++ b/core/java/android/provider/DocumentsContract.java
@@ -738,7 +738,9 @@
     private static final String PATH_DOCUMENT = "document";
     private static final String PATH_CHILDREN = "children";
     private static final String PATH_SEARCH = "search";
-    private static final String PATH_TREE = "tree";
+    // TODO(b/72055774): make private again once ScopedAccessProvider is refactored
+    /** {@hide} */
+    public static final String PATH_TREE = "tree";
 
     private static final String PARAM_QUERY = "query";
     private static final String PARAM_MANAGE = "manage";
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 4b9f589..e957842 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -5510,6 +5510,27 @@
         public static final String LOCATION_MODE = "location_mode";
 
         /**
+         * The App or module that changes the location mode.
+         * @hide
+         */
+        public static final String LOCATION_CHANGER = "location_changer";
+        /**
+         * The location changer is unknown or unable to detect.
+         * @hide
+         */
+        public static final int LOCATION_CHANGER_UNKNOWN = 0;
+        /**
+         * Location settings in system settings.
+         * @hide
+         */
+        public static final int LOCATION_CHANGER_SYSTEM_SETTINGS = 1;
+        /**
+         * The location icon in drop down notification drawer.
+         * @hide
+         */
+        public static final int LOCATION_CHANGER_QUICK_SETTINGS = 2;
+
+        /**
          * Location access disabled.
          *
          * @deprecated To check location status, use {@link LocationManager#isLocationEnabled()}. To
@@ -7602,6 +7623,13 @@
         public static final String BACKUP_MANAGER_CONSTANTS = "backup_manager_constants";
 
         /**
+         * Flag to set if the system should predictively attempt to re-enable Bluetooth while
+         * the user is driving.
+         * @hide
+         */
+        public static final String BLUETOOTH_ON_WHILE_DRIVING = "bluetooth_on_while_driving";
+
+        /**
          * This are the settings to be backed up.
          *
          * NOTE: Settings are backed up and restored in the order they appear
@@ -7874,6 +7902,7 @@
             CLONE_TO_MANAGED_PROFILE.add(DEFAULT_INPUT_METHOD);
             CLONE_TO_MANAGED_PROFILE.add(ENABLED_ACCESSIBILITY_SERVICES);
             CLONE_TO_MANAGED_PROFILE.add(ENABLED_INPUT_METHODS);
+            CLONE_TO_MANAGED_PROFILE.add(LOCATION_CHANGER);
             CLONE_TO_MANAGED_PROFILE.add(LOCATION_MODE);
             CLONE_TO_MANAGED_PROFILE.add(LOCATION_PROVIDERS_ALLOWED);
             CLONE_TO_MANAGED_PROFILE.add(SELECTED_INPUT_METHOD_SUBTYPE);
@@ -9148,6 +9177,22 @@
                BOOLEAN_VALIDATOR;
 
        /**
+        * Whether to notify the user of carrier networks.
+        * <p>
+        * If not connected and the scan results have a carrier network, we will
+        * put this notification up. If we attempt to connect to a network or
+        * the carrier network(s) disappear, we remove the notification. When we
+        * show the notification, we will not show it again for
+        * {@link android.provider.Settings.Global#WIFI_NETWORKS_AVAILABLE_REPEAT_DELAY} time.
+        * @hide
+        */
+       public static final String WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON =
+               "wifi_carrier_networks_available_notification_on";
+
+       private static final Validator WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR =
+               BOOLEAN_VALIDATOR;
+
+       /**
         * {@hide}
         */
        public static final String WIMAX_NETWORKS_AVAILABLE_NOTIFICATION_ON =
@@ -9328,13 +9373,52 @@
         public static final String RECOMMENDED_NETWORK_EVALUATOR_CACHE_EXPIRY_MS =
                 "recommended_network_evaluator_cache_expiry_ms";
 
-       /**
+        /**
         * Settings to allow BLE scans to be enabled even when Bluetooth is turned off for
         * connectivity.
         * @hide
         */
-       public static final String BLE_SCAN_ALWAYS_AVAILABLE =
-               "ble_scan_always_enabled";
+        public static final String BLE_SCAN_ALWAYS_AVAILABLE = "ble_scan_always_enabled";
+
+        /**
+         * The length in milliseconds of a BLE scan window in a low-power scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_LOW_POWER_WINDOW_MS = "ble_scan_low_power_window_ms";
+
+        /**
+         * The length in milliseconds of a BLE scan window in a balanced scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_BALANCED_WINDOW_MS = "ble_scan_balanced_window_ms";
+
+        /**
+         * The length in milliseconds of a BLE scan window in a low-latency scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_LOW_LATENCY_WINDOW_MS =
+                "ble_scan_low_latency_window_ms";
+
+        /**
+         * The length in milliseconds of a BLE scan interval in a low-power scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_LOW_POWER_INTERVAL_MS =
+                "ble_scan_low_power_interval_ms";
+
+        /**
+         * The length in milliseconds of a BLE scan interval in a balanced scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_BALANCED_INTERVAL_MS =
+                "ble_scan_balanced_interval_ms";
+
+        /**
+         * The length in milliseconds of a BLE scan interval in a low-latency scan mode.
+         * @hide
+         */
+        public static final String BLE_SCAN_LOW_LATENCY_INTERVAL_MS =
+                "ble_scan_low_latency_interval_ms";
 
        /**
         * Used to save the Wifi_ON state prior to tethering.
@@ -11186,6 +11270,16 @@
          */
         public static final String OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION =
                 "override_settings_provider_restore_any_version";
+        /**
+         * Flag to toggle whether system services report attribution chains when they attribute
+         * battery use via a {@code WorkSource}.
+         *
+         * Type: int (0 to disable, 1 to enable)
+         *
+         * @hide
+         */
+        public static final String CHAINED_BATTERY_ATTRIBUTION_ENABLED =
+                "chained_battery_attribution_enabled";
 
         /**
          * Settings to backup. This is here so that it's in the same place as the settings
@@ -11215,6 +11309,7 @@
             NETWORK_RECOMMENDATIONS_ENABLED,
             WIFI_WAKEUP_ENABLED,
             WIFI_NETWORKS_AVAILABLE_NOTIFICATION_ON,
+            WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
             USE_OPEN_WIFI_PACKAGE,
             WIFI_WATCHDOG_POOR_NETWORK_TEST_ENABLED,
             EMERGENCY_TONE,
@@ -11261,6 +11356,8 @@
             VALIDATORS.put(PRIVATE_DNS_MODE, PRIVATE_DNS_MODE_VALIDATOR);
             VALIDATORS.put(PRIVATE_DNS_SPECIFIER, PRIVATE_DNS_SPECIFIER_VALIDATOR);
             VALIDATORS.put(SOFT_AP_TIMEOUT_ENABLED, SOFT_AP_TIMEOUT_ENABLED_VALIDATOR);
+            VALIDATORS.put(WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON,
+                    WIFI_CARRIER_NETWORKS_AVAILABLE_NOTIFICATION_ON_VALIDATOR);
         }
 
         /**
@@ -11906,6 +12003,19 @@
          * @hide
          */
         public static final String SHOW_FIRST_CRASH_DIALOG = "show_first_crash_dialog";
+
+        /**
+         * If nonzero, crash dialogs will show an option to restart the app.
+         * @hide
+         */
+        public static final String SHOW_RESTART_IN_CRASH_DIALOG = "show_restart_in_crash_dialog";
+
+        /**
+         * If nonzero, crash dialogs will show an option to mute all future crash dialogs for
+         * this app.
+         * @hide
+         */
+        public static final String SHOW_MUTE_IN_CRASH_DIALOG = "show_mute_in_crash_dialog";
     }
 
     /**
diff --git a/core/java/android/provider/SettingsValidators.java b/core/java/android/provider/SettingsValidators.java
index 84c9e88..5885b6b 100644
--- a/core/java/android/provider/SettingsValidators.java
+++ b/core/java/android/provider/SettingsValidators.java
@@ -100,7 +100,7 @@
             String[] subparts = value.split("\\.");
             boolean isValidPackageName = true;
             for (String subpart : subparts) {
-                isValidPackageName |= isSubpartValidForPackageName(subpart);
+                isValidPackageName &= isSubpartValidForPackageName(subpart);
                 if (!isValidPackageName) break;
             }
             return isValidPackageName;
@@ -110,7 +110,7 @@
             if (subpart.length() == 0) return false;
             boolean isValidSubpart = Character.isLetter(subpart.charAt(0));
             for (int i = 1; i < subpart.length(); i++) {
-                isValidSubpart |= (Character.isLetterOrDigit(subpart.charAt(i))
+                isValidSubpart &= (Character.isLetterOrDigit(subpart.charAt(i))
                                 || (subpart.charAt(i) == '_'));
                 if (!isValidSubpart) break;
             }
diff --git a/core/java/android/security/IConfirmationPromptCallback.aidl b/core/java/android/security/IConfirmationPromptCallback.aidl
new file mode 100644
index 0000000..96a1a04
--- /dev/null
+++ b/core/java/android/security/IConfirmationPromptCallback.aidl
@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security;
+
+/**
+ * This must be kept manually in sync with system/security/keystore until AIDL
+ * can generate both Java and C++ bindings.
+ *
+ * @hide
+ */
+interface IConfirmationPromptCallback {
+    oneway void onConfirmationPromptCompleted(in int result, in byte[] dataThatWasConfirmed);
+}
diff --git a/core/java/android/security/IKeystoreService.aidl b/core/java/android/security/IKeystoreService.aidl
index b5496e4..738eb68 100644
--- a/core/java/android/security/IKeystoreService.aidl
+++ b/core/java/android/security/IKeystoreService.aidl
@@ -81,4 +81,7 @@
         in String wrappingKeyAlias, in byte[] maskingKey, in KeymasterArguments arguments,
         in long rootSid, in long fingerprintSid,
         out KeyCharacteristics characteristics);
+    int presentConfirmationPrompt(IBinder listener, String promptText, in byte[] extraData,
+        in String locale, in int uiOptionsAsFlags);
+    int cancelConfirmationPrompt(IBinder listener);
 }
diff --git a/core/java/android/text/BoringLayout.java b/core/java/android/text/BoringLayout.java
index ce38ebb..6fa5312 100644
--- a/core/java/android/text/BoringLayout.java
+++ b/core/java/android/text/BoringLayout.java
@@ -347,7 +347,14 @@
         TextLine line = TextLine.obtain();
         line.set(paint, text, 0, textLength, Layout.DIR_LEFT_TO_RIGHT,
                 Layout.DIRS_ALL_LEFT_TO_RIGHT, false, null);
-        fm.width = (int) Math.ceil(line.metrics(fm));
+        if (text instanceof MeasuredText) {
+            MeasuredText mt = (MeasuredText) text;
+            // Reaching here means there is only one paragraph.
+            MeasuredParagraph mp = mt.getMeasuredParagraph(0);
+            fm.width = (int) Math.ceil(mp.getWidth(0, mp.getTextLength()));
+        } else {
+            fm.width = (int) Math.ceil(line.metrics(fm));
+        }
         TextLine.recycle(line);
 
         return fm;
diff --git a/core/java/android/text/MeasuredParagraph.java b/core/java/android/text/MeasuredParagraph.java
index c7d4a4a..45fbf6f 100644
--- a/core/java/android/text/MeasuredParagraph.java
+++ b/core/java/android/text/MeasuredParagraph.java
@@ -176,6 +176,15 @@
     }
 
     /**
+     * Returns the length of the paragraph.
+     *
+     * This is always available.
+     */
+    public int getTextLength() {
+        return mTextLength;
+    }
+
+    /**
      * Returns the characters to be measured.
      *
      * This is always available.
@@ -212,7 +221,7 @@
     /**
      * Returns the whole text width.
      *
-     * This is available only if the MeasureText is computed with computeForMeasurement.
+     * This is available only if the MeasuredParagraph is computed with buildForMeasurement.
      * Returns 0 in other cases.
      */
     public @FloatRange(from = 0.0f) float getWholeWidth() {
@@ -222,7 +231,7 @@
     /**
      * Returns the individual character's width.
      *
-     * This is available only if the MeasureText is computed with computeForMeasurement.
+     * This is available only if the MeasuredParagraph is computed with buildForMeasurement.
      * Returns empty array in other cases.
      */
     public @NonNull FloatArray getWidths() {
@@ -234,7 +243,7 @@
      *
      * If the input text is not a spanned string, this has one value that is the length of the text.
      *
-     * This is available only if the MeasureText is computed with computeForStaticLayout.
+     * This is available only if the MeasuredParagraph is computed with buildForStaticLayout.
      * Returns empty array in other cases.
      */
     public @NonNull IntArray getSpanEndCache() {
@@ -246,7 +255,7 @@
      *
      * This array holds the repeat of top, bottom, ascent, descent of font metrics value.
      *
-     * This is available only if the MeasureText is computed with computeForStaticLayout.
+     * This is available only if the MeasuredParagraph is computed with buildForStaticLayout.
      * Returns empty array in other cases.
      */
     public @NonNull IntArray getFontMetrics() {
@@ -256,7 +265,7 @@
     /**
      * Returns the native ptr of the MeasuredParagraph.
      *
-     * This is available only if the MeasureText is computed with computeForStaticLayout.
+     * This is available only if the MeasuredParagraph is computed with buildForStaticLayout.
      * Returns 0 in other cases.
      */
     public /* Maybe Zero */ long getNativePtr() {
@@ -264,6 +273,30 @@
     }
 
     /**
+     * Returns the width of the given range.
+     *
+     * This is not available if the MeasuredParagraph is computed with buildForBidi.
+     * Returns 0 if the MeasuredParagraph is computed with buildForBidi.
+     *
+     * @param start the inclusive start offset of the target region in the text
+     * @param end the exclusive end offset of the target region in the text
+     */
+    public float getWidth(int start, int end) {
+        if (mNativePtr == 0) {
+            // We have result in Java.
+            final float[] widths = mWidths.getRawArray();
+            float r = 0.0f;
+            for (int i = start; i < end; ++i) {
+                r += widths[i];
+            }
+            return r;
+        } else {
+            // We have result in native.
+            return nGetWidth(mNativePtr, start, end);
+        }
+    }
+
+    /**
      * Generates new MeasuredParagraph for Bidi computation.
      *
      * If recycle is null, this returns new instance. If recycle is not null, this fills computed
@@ -357,6 +390,7 @@
             @IntRange(from = 0) int end,
             @NonNull TextDirectionHeuristic textDir,
             boolean computeHyphenation,
+            boolean computeLayout,
             @Nullable MeasuredParagraph recycle) {
         final MeasuredParagraph mt = recycle == null ? obtain() : recycle;
         mt.resetAndAnalyzeBidi(text, start, end, textDir);
@@ -367,7 +401,7 @@
             try {
                 mt.bindNativeObject(
                         nBuildNativeMeasuredParagraph(nativeBuilderPtr, mt.mCopiedBuffer,
-                              computeHyphenation));
+                              computeHyphenation, computeLayout));
             } finally {
                 nFreeBuilder(nativeBuilderPtr);
             }
@@ -397,7 +431,7 @@
                 }
             }
             mt.bindNativeObject(nBuildNativeMeasuredParagraph(nativeBuilderPtr, mt.mCopiedBuffer,
-                      computeHyphenation));
+                      computeHyphenation, computeLayout));
         } finally {
             nFreeBuilder(nativeBuilderPtr);
         }
@@ -595,7 +629,7 @@
      *
      * If forward=false is passed, returns the minimum index from the end instead.
      *
-     * This only works if the MeasuredParagraph is computed with computeForMeasurement.
+     * This only works if the MeasuredParagraph is computed with buildForMeasurement.
      * Undefined behavior in other case.
      */
     @IntRange(from = 0) int breakText(int limit, boolean forwards, float width) {
@@ -626,7 +660,7 @@
     /**
      * Returns the length of the substring.
      *
-     * This only works if the MeasuredParagraph is computed with computeForMeasurement.
+     * This only works if the MeasuredParagraph is computed with buildForMeasurement.
      * Undefined behavior in other case.
      */
     @FloatRange(from = 0.0f) float measure(int start, int limit) {
@@ -672,10 +706,16 @@
 
     private static native long nBuildNativeMeasuredParagraph(/* Non Zero */ long nativeBuilderPtr,
                                                  @NonNull char[] text,
-                                                 boolean computeHyphenation);
+                                                 boolean computeHyphenation,
+                                                 boolean computeLayout);
 
     private static native void nFreeBuilder(/* Non Zero */ long nativeBuilderPtr);
 
     @CriticalNative
+    private static native float nGetWidth(/* Non Zero */ long nativePtr,
+                                         @IntRange(from = 0) int start,
+                                         @IntRange(from = 0) int end);
+
+    @CriticalNative
     private static native /* Non Zero */ long nGetReleaseFunc();
 }
diff --git a/core/java/android/text/MeasuredText.java b/core/java/android/text/MeasuredText.java
index b96b489..ff23395 100644
--- a/core/java/android/text/MeasuredText.java
+++ b/core/java/android/text/MeasuredText.java
@@ -155,6 +155,11 @@
          * @return the measured text.
          */
         public @NonNull MeasuredText build() {
+            return build(true /* build full layout result */);
+        }
+
+        /** @hide */
+        public @NonNull MeasuredText build(boolean computeLayout) {
             final boolean needHyphenation = mBreakStrategy != Layout.BREAK_STRATEGY_SIMPLE
                     && mHyphenationFrequency != Layout.HYPHENATION_FREQUENCY_NONE;
 
@@ -175,7 +180,7 @@
                 paragraphEnds.add(paraEnd);
                 measuredTexts.add(MeasuredParagraph.buildForStaticLayout(
                         mPaint, mText, paraStart, paraEnd, mTextDir, needHyphenation,
-                        null /* no recycle */));
+                        computeLayout, null /* no recycle */));
             }
 
             return new MeasuredText(mText, mStart, mEnd, mPaint, mTextDir, mBreakStrategy,
@@ -198,7 +203,8 @@
         mText = text;
         mStart = start;
         mEnd = end;
-        mPaint = paint;
+        // Copy the paint so that we can keep the reference of typeface in native layout result.
+        mPaint = new TextPaint(paint);
         mMeasuredParagraphs = measuredTexts;
         mParagraphBreakPoints = paragraphBreakPoints;
         mTextDir = textDir;
@@ -283,6 +289,50 @@
         return mHyphenationFrequency;
     }
 
+    /**
+     * Returns true if the given TextPaint gives the same result of text layout for this text.
+     * @hide
+     */
+    public boolean canUseMeasuredResult(@NonNull TextPaint paint) {
+        return mPaint.getTextSize() == paint.getTextSize()
+            && mPaint.getTextSkewX() == paint.getTextSkewX()
+            && mPaint.getTextScaleX() == paint.getTextScaleX()
+            && mPaint.getLetterSpacing() == paint.getLetterSpacing()
+            && mPaint.getWordSpacing() == paint.getWordSpacing()
+            && mPaint.getFlags() == paint.getFlags()  // Maybe not all flag affects text layout.
+            && mPaint.getTextLocales() == paint.getTextLocales()  // need to be equals?
+            && mPaint.getFontVariationSettings() == paint.getFontVariationSettings()
+            && mPaint.getTypeface() == paint.getTypeface()
+            && TextUtils.equals(mPaint.getFontFeatureSettings(), paint.getFontFeatureSettings());
+    }
+
+    /** @hide */
+    public int findParaIndex(@IntRange(from = 0) int pos) {
+        // TODO: Maybe good to remove paragraph concept from MeasuredText and add substring layout
+        //       support to StaticLayout.
+        for (int i = 0; i < mParagraphBreakPoints.length; ++i) {
+            if (pos < mParagraphBreakPoints[i]) {
+                return i;
+            }
+        }
+        throw new IndexOutOfBoundsException(
+            "pos must be less than " + mParagraphBreakPoints[mParagraphBreakPoints.length - 1]
+            + ", gave " + pos);
+    }
+
+    /** @hide */
+    public float getWidth(@IntRange(from = 0) int start, @IntRange(from = 0) int end) {
+        final int paraIndex = findParaIndex(start);
+        final int paraStart = getParagraphStart(paraIndex);
+        final int paraEnd = getParagraphEnd(paraIndex);
+        if (start < paraStart || paraEnd < end) {
+            throw new RuntimeException("Cannot measured across the paragraph:"
+                + "para: (" + paraStart + ", " + paraEnd + "), "
+                + "request: (" + start + ", " + end + ")");
+        }
+        return getMeasuredParagraph(paraIndex).getWidth(start - paraStart, end - paraStart);
+    }
+
     ///////////////////////////////////////////////////////////////////////////////////////////////
     // Spanned overrides
     //
diff --git a/core/java/android/text/StaticLayout.java b/core/java/android/text/StaticLayout.java
index 70d6486..e62f421 100644
--- a/core/java/android/text/StaticLayout.java
+++ b/core/java/android/text/StaticLayout.java
@@ -678,7 +678,7 @@
                     .setTextDirection(textDir)
                     .setBreakStrategy(b.mBreakStrategy)
                     .setHyphenationFrequency(b.mHyphenationFrequency)
-                    .build();
+                    .build(false /* full layout is not necessary for line breaking */);
             spanned = (source instanceof Spanned) ? (Spanned) source : null;
         } else {
             final CharSequence original = measured.getText();
@@ -928,8 +928,6 @@
         }
     }
 
-    // The parameters that are not changed in the method are marked as final to make the code
-    // easier to understand.
     private int out(final CharSequence text, final int start, final int end, int above, int below,
             int top, int bottom, int v, final float spacingmult, final float spacingadd,
             final LineHeightSpan[] chooseHt, final int[] chooseHtv, final Paint.FontMetricsInt fm,
@@ -958,21 +956,29 @@
             mLineDirections = grow;
         }
 
-        lines[off + START] = start;
-        lines[off + TOP] = v;
+        if (chooseHt != null) {
+            fm.ascent = above;
+            fm.descent = below;
+            fm.top = top;
+            fm.bottom = bottom;
 
-        // Information about hyphenation, tabs, and directions are needed for determining
-        // ellipsization, so the values should be assigned before ellipsization.
+            for (int i = 0; i < chooseHt.length; i++) {
+                if (chooseHt[i] instanceof LineHeightSpan.WithDensity) {
+                    ((LineHeightSpan.WithDensity) chooseHt[i])
+                            .chooseHeight(text, start, end, chooseHtv[i], v, fm, paint);
+                } else {
+                    chooseHt[i].chooseHeight(text, start, end, chooseHtv[i], v, fm);
+                }
+            }
 
-        // TODO: could move TAB to share same column as HYPHEN, simplifying this code and gaining
-        // one bit for start field
-        lines[off + TAB] |= flags & TAB_MASK;
-        lines[off + HYPHEN] = flags;
-        lines[off + DIR] |= dir << DIR_SHIFT;
-        mLineDirections[j] = measured.getDirections(start - widthStart, end - widthStart);
+            above = fm.ascent;
+            below = fm.descent;
+            top = fm.top;
+            bottom = fm.bottom;
+        }
 
-        final boolean firstLine = (j == 0);
-        final boolean currentLineIsTheLastVisibleOne = (j + 1 == mMaximumVisibleLineCount);
+        boolean firstLine = (j == 0);
+        boolean currentLineIsTheLastVisibleOne = (j + 1 == mMaximumVisibleLineCount);
 
         if (ellipsize != null) {
             // If there is only one line, then do any type of ellipsis except when it is MARQUEE
@@ -985,9 +991,9 @@
                     (!firstLine && (currentLineIsTheLastVisibleOne || !moreChars) &&
                             ellipsize == TextUtils.TruncateAt.END);
             if (doEllipsis) {
-                calculateEllipsis(text, start, end, widths, widthStart,
-                        ellipsisWidth - getTotalInsets(j), ellipsize, j,
-                        textWidth, paint, forceEllipsis, dir);
+                calculateEllipsis(start, end, widths, widthStart,
+                        ellipsisWidth, ellipsize, j,
+                        textWidth, paint, forceEllipsis);
             }
         }
 
@@ -1006,28 +1012,6 @@
             }
         }
 
-        if (chooseHt != null) {
-            fm.ascent = above;
-            fm.descent = below;
-            fm.top = top;
-            fm.bottom = bottom;
-
-            for (int i = 0; i < chooseHt.length; i++) {
-                if (chooseHt[i] instanceof LineHeightSpan.WithDensity) {
-                    ((LineHeightSpan.WithDensity) chooseHt[i])
-                        .chooseHeight(text, start, end, chooseHtv[i], v, fm, paint);
-
-                } else {
-                    chooseHt[i].chooseHeight(text, start, end, chooseHtv[i], v, fm);
-                }
-            }
-
-            above = fm.ascent;
-            below = fm.descent;
-            top = fm.top;
-            bottom = fm.bottom;
-        }
-
         if (firstLine) {
             if (trackPad) {
                 mTopPadding = top - above;
@@ -1038,6 +1022,8 @@
             }
         }
 
+        int extra;
+
         if (lastLine) {
             if (trackPad) {
                 mBottomPadding = bottom - below;
@@ -1048,9 +1034,8 @@
             }
         }
 
-        final int extra;
         if (needMultiply && (addLastLineLineSpacing || !lastLine)) {
-            final double ex = (below - above) * (spacingmult - 1) + spacingadd;
+            double ex = (below - above) * (spacingmult - 1) + spacingadd;
             if (ex >= 0) {
                 extra = (int)(ex + EXTRA_ROUNDING);
             } else {
@@ -1060,6 +1045,8 @@
             extra = 0;
         }
 
+        lines[off + START] = start;
+        lines[off + TOP] = v;
         lines[off + DESCENT] = below + extra;
         lines[off + EXTRA] = extra;
 
@@ -1067,7 +1054,7 @@
         // store the height as if it was ellipsized
         if (!mEllipsized && currentLineIsTheLastVisibleOne) {
             // below calculation as if it was the last line
-            final int maxLineBelow = includePad ? bottom : below;
+            int maxLineBelow = includePad ? bottom : below;
             // similar to the calculation of v below, without the extra.
             mMaxLineHeight = v + (maxLineBelow - above);
         }
@@ -1076,13 +1063,23 @@
         lines[off + mColumns + START] = end;
         lines[off + mColumns + TOP] = v;
 
+        // TODO: could move TAB to share same column as HYPHEN, simplifying this code and gaining
+        // one bit for start field
+        lines[off + TAB] |= flags & TAB_MASK;
+        lines[off + HYPHEN] = flags;
+        lines[off + DIR] |= dir << DIR_SHIFT;
+        mLineDirections[j] = measured.getDirections(start - widthStart, end - widthStart);
+
         mLineCount++;
         return v;
     }
 
-    private void calculateEllipsis(CharSequence text, int lineStart, int lineEnd, float[] widths,
-            int widthStart, float avail, TextUtils.TruncateAt where, int line, float textWidth,
-            TextPaint paint, boolean forceEllipsis, int dir) {
+    private void calculateEllipsis(int lineStart, int lineEnd,
+                                   float[] widths, int widthStart,
+                                   float avail, TextUtils.TruncateAt where,
+                                   int line, float textWidth, TextPaint paint,
+                                   boolean forceEllipsis) {
+        avail -= getTotalInsets(line);
         if (textWidth <= avail && !forceEllipsis) {
             // Everything fits!
             mLines[mColumns * line + ELLIPSIS_START] = 0;
@@ -1090,53 +1087,11 @@
             return;
         }
 
-        float tempAvail = avail;
-        int numberOfTries = 0;
-        boolean lineFits = false;
-        mWorkPaint.set(paint);
-        do {
-            final float ellipsizedWidth = guessEllipsis(text, lineStart, lineEnd, widths,
-                    widthStart, tempAvail, where, line, mWorkPaint, forceEllipsis, dir);
-            if (ellipsizedWidth <= avail) {
-                lineFits = true;
-            } else {
-                numberOfTries++;
-                if (numberOfTries > 10) {
-                    // If the text still doesn't fit after ten tries, assume it will never fit and
-                    // ellipsize it all.
-                    mLines[mColumns * line + ELLIPSIS_START] = 0;
-                    mLines[mColumns * line + ELLIPSIS_COUNT] = lineEnd - lineStart;
-                    lineFits = true;
-                } else {
-                    // Some side effect of ellipsization has caused the text to go over the
-                    // available width. Let's make the available width shorter by exactly that
-                    // amount and retry.
-                    tempAvail -= ellipsizedWidth - avail;
-                }
-            }
-        } while (!lineFits);
-        mEllipsized = true;
-    }
+        float ellipsisWidth = paint.measureText(TextUtils.getEllipsisString(where));
+        int ellipsisStart = 0;
+        int ellipsisCount = 0;
+        int len = lineEnd - lineStart;
 
-    // Returns the width of the ellipsized line which in some rare cases can actually be larger
-    // than 'avail' (due to kerning or other context-based effect of replacement of text by
-    // ellipsis). If all the line needs to ellipsized away, or it's an invalud hyphenation mode,
-    // returns 0 so the caller can stop iterating.
-    //
-    // This method temporarily modifies the TextPaint passed to it, so the TextPaint passed to it
-    // should not be accessed while the method is running.
-    private float guessEllipsis(CharSequence text, int lineStart, int lineEnd, float[] widths,
-            int widthStart, float avail, TextUtils.TruncateAt where, int line,
-            TextPaint paint, boolean forceEllipsis, int dir) {
-        final int savedHyphenEdit = paint.getHyphenEdit();
-        paint.setHyphenEdit(0);
-        final float ellipsisWidth = paint.measureText(TextUtils.getEllipsisString(where));
-        final int ellipsisStart;
-        final int ellipsisCount;
-        final int len = lineEnd - lineStart;
-        final int offset = lineStart - widthStart;
-
-        int hyphen = getHyphen(line);
         // We only support start ellipsis on a single line
         if (where == TextUtils.TruncateAt.START) {
             if (mMaximumVisibleLineCount == 1) {
@@ -1144,9 +1099,9 @@
                 int i;
 
                 for (i = len; i > 0; i--) {
-                    final float w = widths[i - 1 + offset];
+                    float w = widths[i - 1 + lineStart - widthStart];
                     if (w + sum + ellipsisWidth > avail) {
-                        while (i < len && widths[i + offset] == 0.0f) {
+                        while (i < len && widths[i + lineStart - widthStart] == 0.0f) {
                             i++;
                         }
                         break;
@@ -1157,13 +1112,9 @@
 
                 ellipsisStart = 0;
                 ellipsisCount = i;
-                // Strip the potential hyphenation at beginning of line.
-                hyphen &= ~Paint.HYPHENEDIT_MASK_START_OF_LINE;
             } else {
-                ellipsisStart = 0;
-                ellipsisCount = 0;
                 if (Log.isLoggable(TAG, Log.WARN)) {
-                    Log.w(TAG, "Start ellipsis only supported with one line");
+                    Log.w(TAG, "Start Ellipsis only supported with one line");
                 }
             }
         } else if (where == TextUtils.TruncateAt.END || where == TextUtils.TruncateAt.MARQUEE ||
@@ -1172,7 +1123,7 @@
             int i;
 
             for (i = 0; i < len; i++) {
-                final float w = widths[i + offset];
+                float w = widths[i + lineStart - widthStart];
 
                 if (w + sum + ellipsisWidth > avail) {
                     break;
@@ -1181,27 +1132,24 @@
                 sum += w;
             }
 
-            if (forceEllipsis && i == len && len > 0) {
+            ellipsisStart = i;
+            ellipsisCount = len - i;
+            if (forceEllipsis && ellipsisCount == 0 && len > 0) {
                 ellipsisStart = len - 1;
                 ellipsisCount = 1;
-            } else {
-                ellipsisStart = i;
-                ellipsisCount = len - i;
             }
-            // Strip the potential hyphenation at end of line.
-            hyphen &= ~Paint.HYPHENEDIT_MASK_END_OF_LINE;
-        } else { // where = TextUtils.TruncateAt.MIDDLE
-            // We only support middle ellipsis on a single line.
+        } else {
+            // where = TextUtils.TruncateAt.MIDDLE We only support middle ellipsis on a single line
             if (mMaximumVisibleLineCount == 1) {
                 float lsum = 0, rsum = 0;
                 int left = 0, right = len;
 
-                final float ravail = (avail - ellipsisWidth) / 2;
+                float ravail = (avail - ellipsisWidth) / 2;
                 for (right = len; right > 0; right--) {
-                    final float w = widths[right - 1 + offset];
+                    float w = widths[right - 1 + lineStart - widthStart];
 
                     if (w + rsum > ravail) {
-                        while (right < len && widths[right + offset] == 0.0f) {
+                        while (right < len && widths[right + lineStart - widthStart] == 0.0f) {
                             right++;
                         }
                         break;
@@ -1209,9 +1157,9 @@
                     rsum += w;
                 }
 
-                final float lavail = avail - ellipsisWidth - rsum;
+                float lavail = avail - ellipsisWidth - rsum;
                 for (left = 0; left < right; left++) {
-                    final float w = widths[left + offset];
+                    float w = widths[left + lineStart - widthStart];
 
                     if (w + lsum > lavail) {
                         break;
@@ -1223,53 +1171,14 @@
                 ellipsisStart = left;
                 ellipsisCount = right - left;
             } else {
-                ellipsisStart = 0;
-                ellipsisCount = 0;
                 if (Log.isLoggable(TAG, Log.WARN)) {
-                    Log.w(TAG, "Middle ellipsis only supported with one line");
+                    Log.w(TAG, "Middle Ellipsis only supported with one line");
                 }
             }
         }
+        mEllipsized = true;
         mLines[mColumns * line + ELLIPSIS_START] = ellipsisStart;
         mLines[mColumns * line + ELLIPSIS_COUNT] = ellipsisCount;
-
-        if (ellipsisStart == 0 && (ellipsisCount == 0 || ellipsisCount == len)) {
-            // Unsupported ellipsization mode or all text is ellipsized away. Return 0.
-            return 0.0f;
-        }
-
-        final boolean isSpanned = text instanceof Spanned;
-        final Ellipsizer ellipsizedText = isSpanned
-                        ? new SpannedEllipsizer(text)
-                        : new Ellipsizer(text);
-        ellipsizedText.mLayout = this;
-        ellipsizedText.mMethod = where;
-
-        final boolean hasTabs = getLineContainsTab(line);
-        final TabStops tabStops;
-        if (hasTabs && isSpanned) {
-            final TabStopSpan[] tabs = getParagraphSpans((Spanned) ellipsizedText, lineStart,
-                    lineEnd, TabStopSpan.class);
-            if (tabs.length == 0) {
-                tabStops = null;
-            } else {
-                tabStops = new TabStops(TAB_INCREMENT, tabs);
-            }
-        } else {
-            tabStops = null;
-        }
-        paint.setHyphenEdit(hyphen);
-        final TextLine textline = TextLine.obtain();
-        textline.set(paint, ellipsizedText, lineStart, lineEnd, dir, getLineDirections(line),
-                hasTabs, tabStops);
-        // Since TextLine.metric() returns negative values for RTL text, multiplication by dir
-        // converts it to an actual width. Note that we don't want to use the absolute value,
-        // since we may actually have glyphs with negative advances, which by definition always
-        // fit.
-        final float ellipsizedWidth = textline.metrics(null) * dir;
-        TextLine.recycle(textline);
-        paint.setHyphenEdit(savedHyphenEdit);
-        return ellipsizedWidth;
     }
 
     private float getTotalInsets(int line) {
@@ -1509,8 +1418,6 @@
      */
     private int mMaxLineHeight = DEFAULT_MAX_LINE_HEIGHT;
 
-    private TextPaint mWorkPaint = new TextPaint();
-
     private static final int COLUMNS_NORMAL = 5;
     private static final int COLUMNS_ELLIPSIZE = 7;
     private static final int START = 0;
diff --git a/core/java/android/text/TextLine.java b/core/java/android/text/TextLine.java
index 86cc0141..55367dc 100644
--- a/core/java/android/text/TextLine.java
+++ b/core/java/android/text/TextLine.java
@@ -60,6 +60,7 @@
     private char[] mChars;
     private boolean mCharsValid;
     private Spanned mSpanned;
+    private MeasuredText mMeasured;
 
     // Additional width of whitespace for justification. This value is per whitespace, thus
     // the line width will increase by mAddedWidth x (number of stretchable whitespaces).
@@ -118,6 +119,7 @@
         tl.mSpanned = null;
         tl.mTabs = null;
         tl.mChars = null;
+        tl.mMeasured = null;
 
         tl.mMetricAffectingSpanSpanSet.recycle();
         tl.mCharacterStyleSpanSet.recycle();
@@ -168,6 +170,14 @@
             hasReplacement = mReplacementSpanSpanSet.numberOfSpans > 0;
         }
 
+        mMeasured = null;
+        if (text instanceof MeasuredText) {
+            MeasuredText mt = (MeasuredText) text;
+            if (mt.canUseMeasuredResult(paint)) {
+                mMeasured = mt;
+            }
+        }
+
         mCharsValid = hasReplacement || hasTabs || directions != Layout.DIRS_ALL_LEFT_TO_RIGHT;
 
         if (mCharsValid) {
@@ -736,8 +746,13 @@
             return wp.getRunAdvance(mChars, start, end, contextStart, contextEnd, runIsRtl, offset);
         } else {
             final int delta = mStart;
-            return wp.getRunAdvance(mText, delta + start, delta + end,
-                    delta + contextStart, delta + contextEnd, runIsRtl, delta + offset);
+            if (mMeasured == null) {
+                // TODO: Enable measured getRunAdvance for ReplacementSpan and RTL text.
+                return wp.getRunAdvance(mText, delta + start, delta + end,
+                        delta + contextStart, delta + contextEnd, runIsRtl, delta + offset);
+            } else {
+                return mMeasured.getWidth(start + delta, end + delta);
+            }
         }
     }
 
diff --git a/core/java/android/text/TextUtils.java b/core/java/android/text/TextUtils.java
index 409e514..af0eebf 100644
--- a/core/java/android/text/TextUtils.java
+++ b/core/java/android/text/TextUtils.java
@@ -88,8 +88,8 @@
 
     /** {@hide} */
     @NonNull
-    public static String getEllipsisString(@NonNull TruncateAt method) {
-        return (method == TruncateAt.END_SMALL) ? ELLIPSIS_TWO_DOTS : ELLIPSIS_NORMAL;
+    public static String getEllipsisString(@NonNull TextUtils.TruncateAt method) {
+        return (method == TextUtils.TruncateAt.END_SMALL) ? ELLIPSIS_TWO_DOTS : ELLIPSIS_NORMAL;
     }
 
 
@@ -1194,11 +1194,9 @@
      * or, if it does not fit, a truncated
      * copy with ellipsis character added at the specified edge or center.
      */
-    @NonNull
-    public static CharSequence ellipsize(@NonNull CharSequence text,
-                                         @NonNull TextPaint p,
-                                         @FloatRange(from = 0.0) float avail,
-                                         @NonNull TruncateAt where) {
+    public static CharSequence ellipsize(CharSequence text,
+                                         TextPaint p,
+                                         float avail, TruncateAt where) {
         return ellipsize(text, p, avail, where, false, null);
     }
 
@@ -1214,11 +1212,9 @@
      * report the start and end of the ellipsized range.  TextDirection
      * is determined by the first strong directional character.
      */
-    @NonNull
-    public static CharSequence ellipsize(@NonNull CharSequence text,
-                                         @NonNull TextPaint paint,
-                                         @FloatRange(from = 0.0) float avail,
-                                         @NonNull TruncateAt where,
+    public static CharSequence ellipsize(CharSequence text,
+                                         TextPaint paint,
+                                         float avail, TruncateAt where,
                                          boolean preserveLength,
                                          @Nullable EllipsizeCallback callback) {
         return ellipsize(text, paint, avail, where, preserveLength, callback,
@@ -1239,19 +1235,16 @@
      *
      * @hide
      */
-    @NonNull
-    public static CharSequence ellipsize(@NonNull CharSequence text,
-            @NonNull TextPaint paint,
-            @FloatRange(from = 0.0) float avail,
-            @NonNull TruncateAt where,
+    public static CharSequence ellipsize(CharSequence text,
+            TextPaint paint,
+            float avail, TruncateAt where,
             boolean preserveLength,
             @Nullable EllipsizeCallback callback,
-            @NonNull TextDirectionHeuristic textDir,
-            @NonNull String ellipsis) {
+            TextDirectionHeuristic textDir, String ellipsis) {
 
-        final int len = text.length();
+        int len = text.length();
+
         MeasuredParagraph mt = null;
-        MeasuredParagraph resultMt = null;
         try {
             mt = MeasuredParagraph.buildForMeasurement(paint, text, 0, text.length(), textDir, mt);
             float width = mt.getWholeWidth();
@@ -1260,110 +1253,76 @@
                 if (callback != null) {
                     callback.ellipsized(0, 0);
                 }
+
                 return text;
             }
 
-            // First estimate of effective width of ellipsis.
-            float ellipsisWidth = paint.measureText(ellipsis);
-            int numberOfTries = 0;
-            boolean textFits = false;
-            int start, end;
-            CharSequence result;
-            do {
-                if (avail < ellipsisWidth) {
-                    // Even the ellipsis can't fit. So it all goes.
-                    start = 0;
-                    end = len;
-                } else {
-                    final float remainingWidth = avail - ellipsisWidth;
-                    if (where == TruncateAt.START) {
-                        start = 0;
-                        end = len - mt.breakText(len, false /* backwards */, remainingWidth);
-                    } else if (where == TruncateAt.END || where == TruncateAt.END_SMALL) {
-                        start = mt.breakText(len, true /* forwards */, remainingWidth);
-                        end = len;
-                    } else {
-                        end = len - mt.breakText(len, false /* backwards */, remainingWidth / 2);
-                        start = mt.breakText(end, true /* forwards */,
-                                remainingWidth - mt.measure(end, len));
-                    }
-                }
+            // XXX assumes ellipsis string does not require shaping and
+            // is unaffected by style
+            float ellipsiswid = paint.measureText(ellipsis);
+            avail -= ellipsiswid;
 
-                final char[] buf = mt.getChars();
-                final Spanned sp = text instanceof Spanned ? (Spanned) text : null;
-
-                final int removed = end - start;
-                final int remaining = len - removed;
-                if (preserveLength) {
-                    int pos = start;
-                    if (remaining > 0 && removed >= ellipsis.length()) {
-                        ellipsis.getChars(0, ellipsis.length(), buf, start);
-                        pos += ellipsis.length();
-                    } // else eliminate the ellipsis
-                    while (pos < end) {
-                        buf[pos++] = ELLIPSIS_FILLER;
-                    }
-                    final String s = new String(buf, 0, len);
-                    if (sp == null) {
-                        result = s;
-                    } else {
-                        final SpannableString ss = new SpannableString(s);
-                        copySpansFrom(sp, 0, len, Object.class, ss, 0);
-                        result = ss;
-                    }
-                } else {
-                    if (remaining == 0) {
-                        result = "";
-                    } else if (sp == null) {
-                        final StringBuilder sb = new StringBuilder(remaining + ellipsis.length());
-                        sb.append(buf, 0, start);
-                        sb.append(ellipsis);
-                        sb.append(buf, end, len - end);
-                        result = sb.toString();
-                    } else {
-                        final SpannableStringBuilder ssb = new SpannableStringBuilder();
-                        ssb.append(text, 0, start);
-                        ssb.append(ellipsis);
-                        ssb.append(text, end, len);
-                        result = ssb;
-                    }
-                }
-
-                if (remaining == 0) { // All text is gone.
-                    textFits = true;
-                } else {
-                    resultMt = MeasuredParagraph.buildForMeasurement(
-                            paint, result, 0, result.length(), textDir, resultMt);
-                    width = resultMt.getWholeWidth();
-                    if (width <= avail) {
-                        textFits = true;
-                    } else {
-                        numberOfTries++;
-                        if (numberOfTries > 10) {
-                            // If the text still doesn't fit after ten tries, assume it will never
-                            // fit and ellipsize it all. We do this by setting the width of the
-                            // ellipsis to be positive infinity, so we get to empty text in the next
-                            // round.
-                            ellipsisWidth = Float.POSITIVE_INFINITY;
-                        } else {
-                            // Adjust the width of the ellipsis by adding the amount 'width' is
-                            // still over.
-                            ellipsisWidth += width - avail;
-                        }
-                    }
-                }
-            } while (!textFits);
-            if (callback != null) {
-                callback.ellipsized(start, end);
+            int left = 0;
+            int right = len;
+            if (avail < 0) {
+                // it all goes
+            } else if (where == TruncateAt.START) {
+                right = len - mt.breakText(len, false, avail);
+            } else if (where == TruncateAt.END || where == TruncateAt.END_SMALL) {
+                left = mt.breakText(len, true, avail);
+            } else {
+                right = len - mt.breakText(len, false, avail / 2);
+                avail -= mt.measure(right, len);
+                left = mt.breakText(right, true, avail);
             }
-            return result;
+
+            if (callback != null) {
+                callback.ellipsized(left, right);
+            }
+
+            final char[] buf = mt.getChars();
+            Spanned sp = text instanceof Spanned ? (Spanned) text : null;
+
+            final int removed = right - left;
+            final int remaining = len - removed;
+            if (preserveLength) {
+                if (remaining > 0 && removed >= ellipsis.length()) {
+                    ellipsis.getChars(0, ellipsis.length(), buf, left);
+                    left += ellipsis.length();
+                } // else skip the ellipsis
+                for (int i = left; i < right; i++) {
+                    buf[i] = ELLIPSIS_FILLER;
+                }
+                String s = new String(buf, 0, len);
+                if (sp == null) {
+                    return s;
+                }
+                SpannableString ss = new SpannableString(s);
+                copySpansFrom(sp, 0, len, Object.class, ss, 0);
+                return ss;
+            }
+
+            if (remaining == 0) {
+                return "";
+            }
+
+            if (sp == null) {
+                StringBuilder sb = new StringBuilder(remaining + ellipsis.length());
+                sb.append(buf, 0, left);
+                sb.append(ellipsis);
+                sb.append(buf, right, len - right);
+                return sb.toString();
+            }
+
+            SpannableStringBuilder ssb = new SpannableStringBuilder();
+            ssb.append(text, 0, left);
+            ssb.append(ellipsis);
+            ssb.append(text, right, len);
+            return ssb;
         } finally {
             if (mt != null) {
                 mt.recycle();
             }
-            if (resultMt != null) {
-                resultMt.recycle();
-            }
         }
     }
 
@@ -1394,6 +1353,7 @@
      * @return the formatted CharSequence. If even the shortest sequence (e.g. {@code "A, 11 more"})
      *     doesn't fit, it will return an empty string.
      */
+
     public static CharSequence listEllipsize(@Nullable Context context,
             @Nullable List<CharSequence> elements, @NonNull String separator,
             @NonNull TextPaint paint, @FloatRange(from=0.0,fromInclusive=false) float avail,
diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index b313514..25a177e 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -46,6 +46,7 @@
         DEFAULT_FLAGS.put("settings_zone_picker_v2", "true");
         DEFAULT_FLAGS.put("settings_suggestion_ui_v2", "false");
         DEFAULT_FLAGS.put("settings_about_phone_v2", "false");
+        DEFAULT_FLAGS.put("settings_bluetooth_while_driving", "false");
     }
 
     /**
diff --git a/core/java/android/util/MutableBoolean.java b/core/java/android/util/MutableBoolean.java
index ed837ab..44e73cc 100644
--- a/core/java/android/util/MutableBoolean.java
+++ b/core/java/android/util/MutableBoolean.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableBoolean {
     public boolean value;
 
diff --git a/core/java/android/util/MutableByte.java b/core/java/android/util/MutableByte.java
index cc6b00a..b9ec25d 100644
--- a/core/java/android/util/MutableByte.java
+++ b/core/java/android/util/MutableByte.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableByte {
     public byte value;
 
diff --git a/core/java/android/util/MutableChar.java b/core/java/android/util/MutableChar.java
index 9a2e2bc..9f7a9ae 100644
--- a/core/java/android/util/MutableChar.java
+++ b/core/java/android/util/MutableChar.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableChar {
     public char value;
 
diff --git a/core/java/android/util/MutableDouble.java b/core/java/android/util/MutableDouble.java
index bd7329a..56e539b 100644
--- a/core/java/android/util/MutableDouble.java
+++ b/core/java/android/util/MutableDouble.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableDouble {
     public double value;
 
diff --git a/core/java/android/util/MutableFloat.java b/core/java/android/util/MutableFloat.java
index e6f2d7d..6d7ad59 100644
--- a/core/java/android/util/MutableFloat.java
+++ b/core/java/android/util/MutableFloat.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableFloat {
     public float value;
 
diff --git a/core/java/android/util/MutableInt.java b/core/java/android/util/MutableInt.java
index a3d8606..bb24566 100644
--- a/core/java/android/util/MutableInt.java
+++ b/core/java/android/util/MutableInt.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableInt {
     public int value;
 
diff --git a/core/java/android/util/MutableLong.java b/core/java/android/util/MutableLong.java
index 575068e..86e70e1 100644
--- a/core/java/android/util/MutableLong.java
+++ b/core/java/android/util/MutableLong.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableLong {
     public long value;
 
diff --git a/core/java/android/util/MutableShort.java b/core/java/android/util/MutableShort.java
index 48fb232..b94ab07 100644
--- a/core/java/android/util/MutableShort.java
+++ b/core/java/android/util/MutableShort.java
@@ -17,7 +17,9 @@
 package android.util;
 
 /**
+ * @deprecated This class will be removed from a future version of the Android API.
  */
+@Deprecated
 public final class MutableShort {
     public short value;
 
diff --git a/core/java/android/util/StatsManager.java b/core/java/android/util/StatsManager.java
index e0d085c..687aa83 100644
--- a/core/java/android/util/StatsManager.java
+++ b/core/java/android/util/StatsManager.java
@@ -17,19 +17,33 @@
 
 import android.Manifest;
 import android.annotation.RequiresPermission;
-import android.annotation.SystemApi;
 import android.os.IBinder;
 import android.os.IStatsManager;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 
+
+/*
+ *
+ *
+ *
+ *
+ * THIS ENTIRE FILE IS ONLY TEMPORARY TO PREVENT BREAKAGES OF DEPENDENCIES ON OLD APIS.
+ * The new StatsManager is to be found in android.app.StatsManager.
+ * TODO: Delete this file!
+ *
+ *
+ *
+ *
+ */
+
+
 /**
  * API for StatsD clients to send configurations and retrieve data.
  *
  * @hide
  */
-@SystemApi
-public final class StatsManager {
+public class StatsManager {
     IStatsManager mService;
     private static final String TAG = "StatsManager";
 
@@ -55,7 +69,7 @@
      * Clients can send a configuration and simultaneously registers the name of a broadcast
      * receiver that listens for when it should request data.
      *
-     * @param configKey An arbitrary string that allows clients to track the configuration.
+     * @param configKey An arbitrary integer that allows clients to track the configuration.
      * @param config    Wire-encoded StatsDConfig proto that specifies metrics (and all
      *                  dependencies eg, conditions and matchers).
      * @param pkg       The package name to receive the broadcast.
diff --git a/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java b/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
index 5a09dab..62222b5 100644
--- a/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
+++ b/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
@@ -412,6 +412,20 @@
         }
     }
 
+    static byte[] generateFsverityRootHash(String apkPath)
+            throws IOException, SignatureNotFoundException, DigestException,
+                   NoSuchAlgorithmException {
+        try (RandomAccessFile apk = new RandomAccessFile(apkPath, "r")) {
+            SignatureInfo signatureInfo = findSignature(apk);
+            VerifiedSigner vSigner = verify(apk, false);
+            if (vSigner.verityRootHash == null) {
+                return null;
+            }
+            return ApkVerityBuilder.generateFsverityRootHash(
+                    apk, ByteBuffer.wrap(vSigner.verityRootHash), signatureInfo);
+        }
+    }
+
     private static boolean isSupportedSignatureAlgorithm(int sigAlgorithm) {
         switch (sigAlgorithm) {
             case SIGNATURE_RSA_PSS_WITH_SHA256:
diff --git a/core/java/android/util/apk/ApkSignatureSchemeV3Verifier.java b/core/java/android/util/apk/ApkSignatureSchemeV3Verifier.java
index 1b04eb2..ee6fc07 100644
--- a/core/java/android/util/apk/ApkSignatureSchemeV3Verifier.java
+++ b/core/java/android/util/apk/ApkSignatureSchemeV3Verifier.java
@@ -523,6 +523,20 @@
         }
     }
 
+    static byte[] generateFsverityRootHash(String apkPath)
+            throws NoSuchAlgorithmException, DigestException, IOException,
+                   SignatureNotFoundException {
+        try (RandomAccessFile apk = new RandomAccessFile(apkPath, "r")) {
+            SignatureInfo signatureInfo = findSignature(apk);
+            VerifiedSigner vSigner = verify(apk, false);
+            if (vSigner.verityRootHash == null) {
+                return null;
+            }
+            return ApkVerityBuilder.generateFsverityRootHash(
+                    apk, ByteBuffer.wrap(vSigner.verityRootHash), signatureInfo);
+        }
+    }
+
     private static boolean isSupportedSignatureAlgorithm(int sigAlgorithm) {
         switch (sigAlgorithm) {
             case SIGNATURE_RSA_PSS_WITH_SHA256:
diff --git a/core/java/android/util/apk/ApkSignatureVerifier.java b/core/java/android/util/apk/ApkSignatureVerifier.java
index 8794372..de9f55b 100644
--- a/core/java/android/util/apk/ApkSignatureVerifier.java
+++ b/core/java/android/util/apk/ApkSignatureVerifier.java
@@ -427,6 +427,27 @@
     }
 
     /**
+     * Generates the FSVerity root hash from FSVerity header, extensions and Merkle tree root hash
+     * in Signing Block.
+     *
+     * @return FSverity root hash
+     */
+    public static byte[] generateFsverityRootHash(String apkPath)
+            throws NoSuchAlgorithmException, DigestException, IOException {
+        // first try v3
+        try {
+            return ApkSignatureSchemeV3Verifier.generateFsverityRootHash(apkPath);
+        } catch (SignatureNotFoundException e) {
+            // try older version
+        }
+        try {
+            return ApkSignatureSchemeV2Verifier.generateFsverityRootHash(apkPath);
+        } catch (SignatureNotFoundException e) {
+            return null;
+        }
+    }
+
+    /**
      * Result of a successful APK verification operation.
      */
     public static class Result {
diff --git a/core/java/android/util/apk/ApkVerityBuilder.java b/core/java/android/util/apk/ApkVerityBuilder.java
index 5880c6a..ba21ccb 100644
--- a/core/java/android/util/apk/ApkVerityBuilder.java
+++ b/core/java/android/util/apk/ApkVerityBuilder.java
@@ -70,7 +70,7 @@
             throws IOException, SecurityException, NoSuchAlgorithmException, DigestException {
         long signingBlockSize =
                 signatureInfo.centralDirOffset - signatureInfo.apkSigningBlockOffset;
-        long dataSize = apk.length() - signingBlockSize - ZIP_EOCD_CENTRAL_DIR_OFFSET_FIELD_SIZE;
+        long dataSize = apk.length() - signingBlockSize;
         int[] levelOffset = calculateVerityLevelOffset(dataSize);
 
         ByteBuffer output = bufferFactory.create(
@@ -132,11 +132,13 @@
         }
 
         if (headerOutput != null) {
+            headerOutput.order(ByteOrder.LITTLE_ENDIAN);
             generateFsverityHeader(headerOutput, apk.length(), levelOffset.length - 1,
                     DEFAULT_SALT);
         }
 
         if (extensionsOutput != null) {
+            extensionsOutput.order(ByteOrder.LITTLE_ENDIAN);
             generateFsverityExtensions(extensionsOutput, signatureInfo.apkSigningBlockOffset,
                     signingBlockSize, signatureInfo.eocdOffset);
         }
@@ -306,6 +308,14 @@
         return rootHash;
     }
 
+    private static void bufferPut(ByteBuffer buffer, byte value) {
+        // FIXME(b/72459251): buffer.put(value) does NOT work surprisingly. The position() after put
+        // does NOT even change. This hack workaround the problem, but the root cause remains
+        // unkonwn yet.  This seems only happen when it goes through the apk install flow on my
+        // setup.
+        buffer.put(new byte[] { value });
+    }
+
     private static ByteBuffer generateFsverityHeader(ByteBuffer buffer, long fileSize, int depth,
             byte[] salt) {
         if (salt.length != 8) {
@@ -315,22 +325,23 @@
         // TODO(b/30972906): update the reference when there is a better one in public.
         buffer.put("TrueBrew".getBytes());  // magic
 
-        buffer.put((byte) 1);        // major version
-        buffer.put((byte) 0);        // minor version
-        buffer.put((byte) 12);       // log2(block-size): log2(4096)
-        buffer.put((byte) 7);        // log2(leaves-per-node): log2(4096 / 32)
+        bufferPut(buffer, (byte) 1);        // major version
+        bufferPut(buffer, (byte) 0);        // minor version
+        bufferPut(buffer, (byte) 12);       // log2(block-size): log2(4096)
+        bufferPut(buffer, (byte) 7);        // log2(leaves-per-node): log2(4096 / 32)
 
-        buffer.putShort((short) 1);  // meta algorithm, SHA256_MODE == 1
-        buffer.putShort((short) 1);  // data algorithm, SHA256_MODE == 1
+        buffer.putShort((short) 1);         // meta algorithm, SHA256_MODE == 1
+        buffer.putShort((short) 1);         // data algorithm, SHA256_MODE == 1
 
-        buffer.putInt(0x1);          // flags, 0x1: has extension
-        buffer.putInt(0);            // reserved
+        buffer.putInt(0x1);                 // flags, 0x1: has extension
+        buffer.putInt(0);                   // reserved
 
-        buffer.putLong(fileSize);    // original file size
+        buffer.putLong(fileSize);           // original file size
 
-        buffer.put((byte) 0);        // auth block offset, disabled here
-        buffer.put(salt);            // salt (8 bytes)
-        // skip(buffer, 22);            // reserved
+        bufferPut(buffer, (byte) 0);        // auth block offset, disabled here
+        bufferPut(buffer, (byte) 2);        // extension count
+        buffer.put(salt);                   // salt (8 bytes)
+        // skip(buffer, 22);                // reserved
 
         buffer.rewind();
         return buffer;
@@ -340,11 +351,6 @@
             long signingBlockSize, long eocdOffset) {
         // Snapshot of the FSVerity structs (subject to change once upstreamed).
         //
-        // struct fsverity_header_extension {
-        //   u8 extension_count;
-        //   u8 reserved[7];
-        // };
-        //
         // struct fsverity_extension {
         //   __le16 length;
         //   u8 type;
@@ -363,10 +369,6 @@
         //   u8 databytes[];
         // };
 
-        // struct fsverity_header_extension
-        buffer.put((byte) 2);        // extension count
-        skip(buffer, 3);             // reserved
-
         final int kSizeOfFsverityExtensionHeader = 8;
 
         {
diff --git a/core/java/android/view/IWindowSession.aidl b/core/java/android/view/IWindowSession.aidl
index 17b6ddc..d7fd329 100644
--- a/core/java/android/view/IWindowSession.aidl
+++ b/core/java/android/view/IWindowSession.aidl
@@ -157,10 +157,8 @@
      * @param flags See {@code View#startDragAndDrop}
      * @param surface Surface containing drag shadow image
      * @param touchSource See {@code InputDevice#getSource()}
-     * @param touchX TODO (b/72072998): Fix the issue that the system server misuse the arguments as
-     *         initial touch point while the framework passes drag shadow size.
-     * @param touchY TODO (b/72072998): Fix the issue that the system server misuse the arguments as
-     *         initial touch point while the framework passes drag shadow size.
+     * @param touchX X coordinate of last touch point
+     * @param touchY Y coordinate of last touch point
      * @param thumbCenterX X coordinate for the position within the shadow image that should be
      *         underneath the touch point during the drag and drop operation.
      * @param thumbCenterY Y coordinate for the position within the shadow image that should be
diff --git a/core/java/android/view/MotionEvent.java b/core/java/android/view/MotionEvent.java
index 04fa637..1d7c1de 100644
--- a/core/java/android/view/MotionEvent.java
+++ b/core/java/android/view/MotionEvent.java
@@ -26,6 +26,8 @@
 import dalvik.annotation.optimization.CriticalNative;
 import dalvik.annotation.optimization.FastNative;
 
+import java.util.Objects;
+
 /**
  * Object used to report movement (mouse, pen, finger, trackball) events.
  * Motion events may hold either absolute or relative movements and other data,
@@ -173,6 +175,8 @@
     private static final long NS_PER_MS = 1000000;
     private static final String LABEL_PREFIX = "AXIS_";
 
+    private static final boolean DEBUG_CONCISE_TOSTRING = false;
+
     /**
      * An invalid pointer id.
      *
@@ -3236,31 +3240,42 @@
     public String toString() {
         StringBuilder msg = new StringBuilder();
         msg.append("MotionEvent { action=").append(actionToString(getAction()));
-        msg.append(", actionButton=").append(buttonStateToString(getActionButton()));
+        appendUnless("0", msg, ", actionButton=", buttonStateToString(getActionButton()));
 
         final int pointerCount = getPointerCount();
         for (int i = 0; i < pointerCount; i++) {
-            msg.append(", id[").append(i).append("]=").append(getPointerId(i));
-            msg.append(", x[").append(i).append("]=").append(getX(i));
-            msg.append(", y[").append(i).append("]=").append(getY(i));
-            msg.append(", toolType[").append(i).append("]=").append(
-                    toolTypeToString(getToolType(i)));
+            appendUnless(i, msg, ", id[" + i + "]=", getPointerId(i));
+            float x = getX(i);
+            float y = getY(i);
+            if (!DEBUG_CONCISE_TOSTRING || x != 0f || y != 0f) {
+                msg.append(", x[").append(i).append("]=").append(x);
+                msg.append(", y[").append(i).append("]=").append(y);
+            }
+            appendUnless(TOOL_TYPE_SYMBOLIC_NAMES.get(TOOL_TYPE_FINGER),
+                    msg, ", toolType[" + i + "]=", toolTypeToString(getToolType(i)));
         }
 
-        msg.append(", buttonState=").append(MotionEvent.buttonStateToString(getButtonState()));
-        msg.append(", metaState=").append(KeyEvent.metaStateToString(getMetaState()));
-        msg.append(", flags=0x").append(Integer.toHexString(getFlags()));
-        msg.append(", edgeFlags=0x").append(Integer.toHexString(getEdgeFlags()));
-        msg.append(", pointerCount=").append(pointerCount);
-        msg.append(", historySize=").append(getHistorySize());
+        appendUnless("0", msg, ", buttonState=", MotionEvent.buttonStateToString(getButtonState()));
+        appendUnless("0", msg, ", metaState=", KeyEvent.metaStateToString(getMetaState()));
+        appendUnless("0", msg, ", flags=0x", Integer.toHexString(getFlags()));
+        appendUnless("0", msg, ", edgeFlags=0x", Integer.toHexString(getEdgeFlags()));
+        appendUnless(1, msg, ", pointerCount=", pointerCount);
+        appendUnless(0, msg, ", historySize=", getHistorySize());
         msg.append(", eventTime=").append(getEventTime());
-        msg.append(", downTime=").append(getDownTime());
-        msg.append(", deviceId=").append(getDeviceId());
-        msg.append(", source=0x").append(Integer.toHexString(getSource()));
+        if (!DEBUG_CONCISE_TOSTRING) {
+            msg.append(", downTime=").append(getDownTime());
+            msg.append(", deviceId=").append(getDeviceId());
+            msg.append(", source=0x").append(Integer.toHexString(getSource()));
+        }
         msg.append(" }");
         return msg.toString();
     }
 
+    private static <T> void appendUnless(T defValue, StringBuilder sb, String key, T value) {
+        if (DEBUG_CONCISE_TOSTRING && Objects.equals(defValue, value)) return;
+        sb.append(key).append(value);
+    }
+
     /**
      * Returns a string that represents the symbolic name of the specified unmasked action
      * such as "ACTION_DOWN", "ACTION_POINTER_DOWN(3)" or an equivalent numeric constant
diff --git a/core/java/android/view/RecordingCanvas.java b/core/java/android/view/RecordingCanvas.java
index 5088cdc..fbb862b 100644
--- a/core/java/android/view/RecordingCanvas.java
+++ b/core/java/android/view/RecordingCanvas.java
@@ -34,6 +34,7 @@
 import android.graphics.RectF;
 import android.graphics.TemporaryBuffer;
 import android.text.GraphicsOperations;
+import android.text.MeasuredText;
 import android.text.SpannableString;
 import android.text.SpannedString;
 import android.text.TextUtils;
@@ -473,7 +474,8 @@
         }
 
         nDrawTextRun(mNativeCanvasWrapper, text, index, count, contextIndex, contextCount,
-                x, y, isRtl, paint.getNativeInstance());
+                x, y, isRtl, paint.getNativeInstance(), 0 /* measured text */,
+                0 /* measured text offset */);
     }
 
     @Override
@@ -503,8 +505,20 @@
             int len = end - start;
             char[] buf = TemporaryBuffer.obtain(contextLen);
             TextUtils.getChars(text, contextStart, contextEnd, buf, 0);
+            long measuredTextPtr = 0;
+            int measuredTextOffset = 0;
+            if (text instanceof MeasuredText) {
+                MeasuredText mt = (MeasuredText) text;
+                int paraIndex = mt.findParaIndex(start);
+                if (end <= mt.getParagraphEnd(paraIndex)) {
+                    // Only support if the target is in the same paragraph.
+                    measuredTextPtr = mt.getMeasuredParagraph(paraIndex).getNativePtr();
+                    measuredTextOffset = start - mt.getParagraphStart(paraIndex);
+                }
+            }
             nDrawTextRun(mNativeCanvasWrapper, buf, start - contextStart, len,
-                    0, contextLen, x, y, isRtl, paint.getNativeInstance());
+                    0, contextLen, x, y, isRtl, paint.getNativeInstance(),
+                    measuredTextPtr, measuredTextOffset);
             TemporaryBuffer.recycle(buf);
         }
     }
@@ -626,7 +640,8 @@
 
     @FastNative
     private static native void nDrawTextRun(long nativeCanvas, char[] text, int start, int count,
-            int contextStart, int contextCount, float x, float y, boolean isRtl, long nativePaint);
+            int contextStart, int contextCount, float x, float y, boolean isRtl, long nativePaint,
+            long nativeMeasuredText, int measuredTextOffset);
 
     @FastNative
     private static native void nDrawTextOnPath(long nativeCanvas, char[] text, int index, int count,
diff --git a/core/java/android/view/SurfaceView.java b/core/java/android/view/SurfaceView.java
index 578679b..4a9da4a 100644
--- a/core/java/android/view/SurfaceView.java
+++ b/core/java/android/view/SurfaceView.java
@@ -25,6 +25,7 @@
 import android.content.res.CompatibilityInfo.Translator;
 import android.content.res.Configuration;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.PixelFormat;
 import android.graphics.PorterDuff;
 import android.graphics.Rect;
@@ -114,7 +115,7 @@
     final Rect mScreenRect = new Rect();
     SurfaceSession mSurfaceSession;
 
-    SurfaceControl mSurfaceControl;
+    SurfaceControlWithBackground mSurfaceControl;
     // In the case of format changes we switch out the surface in-place
     // we need to preserve the old one until the new one has drawn.
     SurfaceControl mDeferredDestroySurfaceControl;
@@ -925,6 +926,17 @@
         return mSubLayer >= 0;
     }
 
+    /**
+     * Set an opaque background color to use with this {@link SurfaceView} when it's being resized
+     * and size of the content hasn't updated yet. This color will fill the expanded area when the
+     * view becomes larger.
+     * @param bgColor An opaque color to fill the background. Alpha component will be ignored.
+     * @hide
+     */
+    public void setResizeBackgroundColor(int bgColor) {
+        mSurfaceControl.setBackgroundColor(bgColor);
+    }
+
     private final SurfaceHolder mSurfaceHolder = new SurfaceHolder() {
         private static final String LOG_TAG = "SurfaceHolder";
 
@@ -1219,6 +1231,19 @@
             mBackgroundControl.deferTransactionUntil(barrier, frame);
         }
 
+        /** Set the color to fill the background with. */
+        private void setBackgroundColor(int bgColor) {
+            final float[] colorComponents = new float[] { Color.red(bgColor) / 255.f,
+                    Color.green(bgColor) / 255.f, Color.blue(bgColor) / 255.f };
+
+            SurfaceControl.openTransaction();
+            try {
+                mBackgroundControl.setColor(colorComponents);
+            } finally {
+                SurfaceControl.closeTransaction();
+            }
+        }
+
         void updateBackgroundVisibility() {
             if (mOpaque && mVisible) {
                 mBackgroundControl.show();
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index a2ecfc4..3d6a6fe 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -16,6 +16,8 @@
 
 package android.view;
 
+import static android.view.accessibility.AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED;
+
 import static java.lang.Math.max;
 
 import android.animation.AnimatorInflater;
@@ -8548,6 +8550,12 @@
         info.setLongClickable(isLongClickable());
         info.setContextClickable(isContextClickable());
         info.setLiveRegion(getAccessibilityLiveRegion());
+        if ((mTooltipInfo != null) && (mTooltipInfo.mTooltipText != null)) {
+            info.setTooltipText(mTooltipInfo.mTooltipText);
+            info.addAction((mTooltipInfo.mTooltipPopup == null)
+                    ? AccessibilityNodeInfo.AccessibilityAction.ACTION_SHOW_TOOLTIP
+                    : AccessibilityNodeInfo.AccessibilityAction.ACTION_HIDE_TOOLTIP);
+        }
 
         // TODO: These make sense only if we are in an AdapterView but all
         // views can be selected. Maybe from accessibility perspective
@@ -8951,8 +8959,7 @@
             return;
         }
         mAccessibilityTraversalBeforeId = beforeId;
-        notifyAccessibilityStateChanged(
-                AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+        notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
     }
 
     /**
@@ -8995,8 +9002,7 @@
             return;
         }
         mAccessibilityTraversalAfterId = afterId;
-        notifyAccessibilityStateChanged(
-                AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+        notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
     }
 
     /**
@@ -9038,8 +9044,7 @@
                 && mID == View.NO_ID) {
             mID = generateViewId();
         }
-        notifyAccessibilityStateChanged(
-                AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+        notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
     }
 
     /**
@@ -10539,7 +10544,7 @@
 
         if (pflags3 != mPrivateFlags3) {
             mPrivateFlags3 = pflags3;
-            notifyAccessibilityStateChanged(AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+            notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
         }
     }
 
@@ -11253,6 +11258,8 @@
 
         if (!isLayoutValid()) {
             mPrivateFlags |= PFLAG_WANTS_FOCUS;
+        } else {
+            clearParentsWantFocus();
         }
 
         handleFocusGainInternal(direction, previouslyFocusedRect);
@@ -11367,8 +11374,7 @@
             mPrivateFlags2 &= ~PFLAG2_ACCESSIBILITY_LIVE_REGION_MASK;
             mPrivateFlags2 |= (mode << PFLAG2_ACCESSIBILITY_LIVE_REGION_SHIFT)
                     & PFLAG2_ACCESSIBILITY_LIVE_REGION_MASK;
-            notifyAccessibilityStateChanged(
-                    AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+            notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
         }
     }
 
@@ -11427,8 +11433,7 @@
             if (!maySkipNotify || oldIncludeForAccessibility != includeForAccessibility()) {
                 notifyAccessibilitySubtreeChanged();
             } else {
-                notifyAccessibilityStateChanged(
-                        AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+                notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
             }
         }
     }
@@ -11838,8 +11843,7 @@
                         || getAccessibilitySelectionEnd() != end)
                         && (start == end)) {
                     setAccessibilitySelection(start, end);
-                    notifyAccessibilityStateChanged(
-                            AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+                    notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
                     return true;
                 }
             } break;
@@ -11856,6 +11860,21 @@
                     return true;
                 }
             } break;
+            case R.id.accessibilityActionShowTooltip: {
+                if ((mTooltipInfo != null) && (mTooltipInfo.mTooltipPopup != null)) {
+                    // Tooltip already showing
+                    return false;
+                }
+                return showLongClickTooltip(0, 0);
+            }
+            case R.id.accessibilityActionHideTooltip: {
+                if ((mTooltipInfo == null) || (mTooltipInfo.mTooltipPopup == null)) {
+                    // No tooltip showing
+                    return false;
+                }
+                hideTooltip();
+                return true;
+            }
         }
         return false;
     }
@@ -13889,12 +13908,10 @@
                 if (oldIncludeForAccessibility != includeForAccessibility()) {
                     notifyAccessibilitySubtreeChanged();
                 } else {
-                    notifyAccessibilityStateChanged(
-                            AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+                    notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
                 }
             } else if ((changed & ENABLED_MASK) != 0) {
-                notifyAccessibilityStateChanged(
-                        AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+                notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
             }
         }
     }
@@ -21854,8 +21871,7 @@
             if (selected) {
                 sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
             } else {
-                notifyAccessibilityStateChanged(
-                        AccessibilityEvent.CONTENT_CHANGE_TYPE_UNDEFINED);
+                notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
             }
         }
     }
@@ -27057,6 +27073,8 @@
         final boolean fromTouch = (mPrivateFlags3 & PFLAG3_FINGER_DOWN) == PFLAG3_FINGER_DOWN;
         mTooltipInfo.mTooltipPopup.show(this, x, y, fromTouch, mTooltipInfo.mTooltipText);
         mAttachInfo.mTooltipHost = this;
+        // The available accessibility actions have changed
+        notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
         return true;
     }
 
@@ -27075,6 +27093,8 @@
         if (mAttachInfo != null) {
             mAttachInfo.mTooltipHost = null;
         }
+        // The available accessibility actions have changed
+        notifyAccessibilityStateChanged(CONTENT_CHANGE_TYPE_UNDEFINED);
     }
 
     private boolean showLongClickTooltip(int x, int y) {
@@ -27083,8 +27103,8 @@
         return showTooltip(x, y, true);
     }
 
-    private void showHoverTooltip() {
-        showTooltip(mTooltipInfo.mAnchorX, mTooltipInfo.mAnchorY, false);
+    private boolean showHoverTooltip() {
+        return showTooltip(mTooltipInfo.mAnchorX, mTooltipInfo.mAnchorY, false);
     }
 
     boolean dispatchTooltipHoverEvent(MotionEvent event) {
diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index 5bd0782..93b3fc2 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -25,7 +25,6 @@
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.StyleRes;
-import android.annotation.SystemApi;
 import android.app.WindowConfiguration;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
@@ -1255,14 +1254,6 @@
     }
 
     /** @hide */
-    @SystemApi
-    public void setDisableWallpaperTouchEvents(boolean disable) {
-        setPrivateFlags(disable
-                ? WindowManager.LayoutParams.PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS : 0,
-                WindowManager.LayoutParams.PRIVATE_FLAG_DISABLE_WALLPAPER_TOUCH_EVENTS);
-    }
-
-    /** @hide */
     public abstract void alwaysReadCloseOnTouchAttr();
 
     /** @hide */
diff --git a/core/java/android/view/accessibility/AccessibilityNodeInfo.java b/core/java/android/view/accessibility/AccessibilityNodeInfo.java
index 3ee282e..23e7d61 100644
--- a/core/java/android/view/accessibility/AccessibilityNodeInfo.java
+++ b/core/java/android/view/accessibility/AccessibilityNodeInfo.java
@@ -727,6 +727,7 @@
     private CharSequence mError;
     private CharSequence mPaneTitle;
     private CharSequence mContentDescription;
+    private CharSequence mTooltipText;
     private String mViewIdResourceName;
     private ArrayList<String> mExtraDataKeys;
 
@@ -2655,6 +2656,34 @@
     }
 
     /**
+     * Gets the tooltip text of this node.
+     *
+     * @return The tooltip text.
+     */
+    @Nullable
+    public CharSequence getTooltipText() {
+        return mTooltipText;
+    }
+
+    /**
+     * Sets the tooltip text of this node.
+     * <p>
+     *   <strong>Note:</strong> Cannot be called from an
+     *   {@link android.accessibilityservice.AccessibilityService}.
+     *   This class is made immutable before being delivered to an AccessibilityService.
+     * </p>
+     *
+     * @param tooltipText The tooltip text.
+     *
+     * @throws IllegalStateException If called from an AccessibilityService.
+     */
+    public void setTooltipText(@Nullable CharSequence tooltipText) {
+        enforceNotSealed();
+        mTooltipText = (tooltipText == null) ? null
+                : tooltipText.subSequence(0, tooltipText.length());
+    }
+
+    /**
      * Sets the view for which the view represented by this info serves as a
      * label for accessibility purposes.
      *
@@ -3209,6 +3238,10 @@
             nonDefaultFields |= bitAt(fieldIndex);
         }
         fieldIndex++;
+        if (!Objects.equals(mTooltipText, DEFAULT.mTooltipText)) {
+            nonDefaultFields |= bitAt(fieldIndex);
+        }
+        fieldIndex++;
         if (!Objects.equals(mViewIdResourceName, DEFAULT.mViewIdResourceName)) {
             nonDefaultFields |= bitAt(fieldIndex);
         }
@@ -3329,6 +3362,8 @@
             parcel.writeCharSequence(mContentDescription);
         }
         if (isBitSet(nonDefaultFields, fieldIndex++)) parcel.writeCharSequence(mPaneTitle);
+        if (isBitSet(nonDefaultFields, fieldIndex++)) parcel.writeCharSequence(mTooltipText);
+
         if (isBitSet(nonDefaultFields, fieldIndex++)) parcel.writeString(mViewIdResourceName);
 
         if (isBitSet(nonDefaultFields, fieldIndex++)) parcel.writeInt(mTextSelectionStart);
@@ -3401,6 +3436,7 @@
         mError = other.mError;
         mContentDescription = other.mContentDescription;
         mPaneTitle = other.mPaneTitle;
+        mTooltipText = other.mTooltipText;
         mViewIdResourceName = other.mViewIdResourceName;
 
         if (mActions != null) mActions.clear();
@@ -3522,6 +3558,7 @@
             mContentDescription = parcel.readCharSequence();
         }
         if (isBitSet(nonDefaultFields, fieldIndex++)) mPaneTitle = parcel.readString();
+        if (isBitSet(nonDefaultFields, fieldIndex++)) mTooltipText = parcel.readCharSequence();
         if (isBitSet(nonDefaultFields, fieldIndex++)) mViewIdResourceName = parcel.readString();
 
         if (isBitSet(nonDefaultFields, fieldIndex++)) mTextSelectionStart = parcel.readInt();
@@ -3684,6 +3721,10 @@
                 return "ACTION_SET_PROGRESS";
             case R.id.accessibilityActionContextClick:
                 return "ACTION_CONTEXT_CLICK";
+            case R.id.accessibilityActionShowTooltip:
+                return "ACTION_SHOW_TOOLTIP";
+            case R.id.accessibilityActionHideTooltip:
+                return "ACTION_HIDE_TOOLTIP";
             default:
                 return "ACTION_UNKNOWN";
         }
@@ -3797,6 +3838,7 @@
         builder.append("; error: ").append(mError);
         builder.append("; maxTextLength: ").append(mMaxTextLength);
         builder.append("; contentDescription: ").append(mContentDescription);
+        builder.append("; tooltipText: ").append(mTooltipText);
         builder.append("; viewIdResName: ").append(mViewIdResourceName);
 
         builder.append("; checkable: ").append(isCheckable());
@@ -4211,6 +4253,20 @@
         public static final AccessibilityAction ACTION_MOVE_WINDOW =
                 new AccessibilityAction(R.id.accessibilityActionMoveWindow);
 
+        /**
+         * Action to show a tooltip. A node should expose this action only for views with tooltip
+         * text that but are not currently showing a tooltip.
+         */
+        public static final AccessibilityAction ACTION_SHOW_TOOLTIP =
+                new AccessibilityAction(R.id.accessibilityActionShowTooltip);
+
+        /**
+         * Action to hide a tooltip. A node should expose this action only for views that are
+         * currently showing a tooltip.
+         */
+        public static final AccessibilityAction ACTION_HIDE_TOOLTIP =
+                new AccessibilityAction(R.id.accessibilityActionHideTooltip);
+
         private final int mActionId;
         private final CharSequence mLabel;
 
diff --git a/core/java/android/view/inputmethod/InputConnection.java b/core/java/android/view/inputmethod/InputConnection.java
index e554540..eba9176 100644
--- a/core/java/android/view/inputmethod/InputConnection.java
+++ b/core/java/android/view/inputmethod/InputConnection.java
@@ -21,6 +21,7 @@
 import android.inputmethodservice.InputMethodService;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.LocaleList;
 import android.view.KeyCharacterMap;
 import android.view.KeyEvent;
 
@@ -898,4 +899,37 @@
      */
     boolean commitContent(@NonNull InputContentInfo inputContentInfo, int flags,
             @Nullable Bundle opts);
+
+    /**
+     * Called by the input method to tell a hint about the locales of text to be committed.
+     *
+     * <p>This is just a hint for editor authors (and the system) to choose better options when
+     * they have to disambiguate languages, like editor authors can do for input methods with
+     * {@link EditorInfo#hintLocales}.</p>
+     *
+     * <p>The language hint provided by this callback should have higher priority than
+     * {@link InputMethodSubtype#getLanguageTag()}, which cannot be updated dynamically.</p>
+     *
+     * <p>Note that in general it is discouraged for input method to specify
+     * {@link android.text.style.LocaleSpan} when inputting text, mainly because of application
+     * compatibility concerns.</p>
+     * <ul>
+     *     <li>When an existing text that already has {@link android.text.style.LocaleSpan} is being
+     *     modified by both the input method and application, there is no reliable and easy way to
+     *     keep track of who modified {@link android.text.style.LocaleSpan}. For instance, if the
+     *     text was updated by JavaScript, it it highly likely that span information is completely
+     *     removed, while some input method attempts to preserve spans if possible.</li>
+     *     <li>There is no clear semantics regarding whether {@link android.text.style.LocaleSpan}
+     *     means a weak (ignorable) hint or a strong hint. This becomes more problematic when
+     *     multiple {@link android.text.style.LocaleSpan} instances are specified to the same
+     *     text region, especially when those spans are conflicting.</li>
+     * </ul>
+     * @param languageHint list of languages sorted by the priority and/or probability
+     */
+    default void reportLanguageHint(@NonNull LocaleList languageHint) {
+        // Intentionally empty.
+        //
+        // We need to have *some* default implementation for the source compatibility.
+        // See Bug 72127682 for details.
+    }
 }
diff --git a/core/java/android/view/inputmethod/InputConnectionWrapper.java b/core/java/android/view/inputmethod/InputConnectionWrapper.java
index f671e22..cbe6856 100644
--- a/core/java/android/view/inputmethod/InputConnectionWrapper.java
+++ b/core/java/android/view/inputmethod/InputConnectionWrapper.java
@@ -16,8 +16,10 @@
 
 package android.view.inputmethod;
 
+import android.annotation.NonNull;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.LocaleList;
 import android.view.KeyEvent;
 
 /**
@@ -303,4 +305,13 @@
     public boolean commitContent(InputContentInfo inputContentInfo, int flags, Bundle opts) {
         return mTarget.commitContent(inputContentInfo, flags, opts);
     }
+
+    /**
+     * {@inheritDoc}
+     * @throws NullPointerException if the target is {@code null}.
+     */
+    @Override
+    public void reportLanguageHint(@NonNull LocaleList languageHint) {
+        mTarget.reportLanguageHint(languageHint);
+    }
 }
diff --git a/core/java/android/view/textclassifier/SmartSelection.java b/core/java/android/view/textclassifier/SmartSelection.java
index 2c93a19..8edf97e 100644
--- a/core/java/android/view/textclassifier/SmartSelection.java
+++ b/core/java/android/view/textclassifier/SmartSelection.java
@@ -16,6 +16,7 @@
 
 package android.view.textclassifier;
 
+import android.annotation.Nullable;
 import android.content.res.AssetFileDescriptor;
 
 /**
@@ -146,11 +147,24 @@
         final String mCollection;
         /** float range: 0 - 1 */
         final float mScore;
+        @Nullable final DatetimeParseResult mDatetime;
 
         ClassificationResult(String collection, float score) {
             mCollection = collection;
             mScore = score;
+            mDatetime = null;
         }
+
+        ClassificationResult(String collection, float score, DatetimeParseResult datetime) {
+            mCollection = collection;
+            mScore = score;
+            mDatetime = datetime;
+        }
+    }
+
+    /** Parsed date information for the classification result. */
+    static final class DatetimeParseResult {
+        long mMsSinceEpoch;
     }
 
     /** Represents a result of Annotate call. */
diff --git a/core/java/android/view/textclassifier/TextClassification.java b/core/java/android/view/textclassifier/TextClassification.java
index 7089677..54e93d5 100644
--- a/core/java/android/view/textclassifier/TextClassification.java
+++ b/core/java/android/view/textclassifier/TextClassification.java
@@ -36,6 +36,7 @@
 import com.android.internal.util.Preconditions;
 
 import java.util.ArrayList;
+import java.util.Calendar;
 import java.util.List;
 import java.util.Locale;
 import java.util.Map;
@@ -592,6 +593,7 @@
     public static final class Options implements Parcelable {
 
         private @Nullable LocaleList mDefaultLocales;
+        private @Nullable Calendar mReferenceTime;
 
         public Options() {}
 
@@ -606,6 +608,16 @@
         }
 
         /**
+         * @param referenceTime reference time based on which relative dates (e.g. "tomorrow" should
+         *      be interpreted. This should usually be the time when the text was originally
+         *      composed. If no reference time is set, now is used.
+         */
+        public Options setReferenceTime(Calendar referenceTime) {
+            mReferenceTime = referenceTime;
+            return this;
+        }
+
+        /**
          * @return ordered list of locale preferences that can be used to disambiguate
          *      the provided text.
          */
@@ -614,6 +626,15 @@
             return mDefaultLocales;
         }
 
+        /**
+         * @return reference time based on which relative dates (e.g. "tomorrow") should be
+         *      interpreted.
+         */
+        @Nullable
+        public Calendar getReferenceTime() {
+            return mReferenceTime;
+        }
+
         @Override
         public int describeContents() {
             return 0;
@@ -625,6 +646,10 @@
             if (mDefaultLocales != null) {
                 mDefaultLocales.writeToParcel(dest, flags);
             }
+            dest.writeInt(mReferenceTime != null ? 1 : 0);
+            if (mReferenceTime != null) {
+                dest.writeSerializable(mReferenceTime);
+            }
         }
 
         public static final Parcelable.Creator<Options> CREATOR =
@@ -644,6 +669,9 @@
             if (in.readInt() > 0) {
                 mDefaultLocales = LocaleList.CREATOR.createFromParcel(in);
             }
+            if (in.readInt() > 0) {
+                mReferenceTime = (Calendar) in.readSerializable();
+            }
         }
     }
 
diff --git a/core/java/android/view/textclassifier/TextClassifier.java b/core/java/android/view/textclassifier/TextClassifier.java
index e9715c5..04ab447 100644
--- a/core/java/android/view/textclassifier/TextClassifier.java
+++ b/core/java/android/view/textclassifier/TextClassifier.java
@@ -47,12 +47,26 @@
     /** @hide */
     String DEFAULT_LOG_TAG = "androidtc";
 
+    /** The TextClassifier failed to run. */
     String TYPE_UNKNOWN = "";
+    /** The classifier ran, but didn't recognize a known entity. */
     String TYPE_OTHER = "other";
+    /** E-mail address (e.g. "noreply@android.com"). */
     String TYPE_EMAIL = "email";
+    /** Phone number (e.g. "555-123 456"). */
     String TYPE_PHONE = "phone";
+    /** Physical address. */
     String TYPE_ADDRESS = "address";
+    /** Web URL. */
     String TYPE_URL = "url";
+    /** Time reference that is no more specific than a date. May be absolute such as "01/01/2000" or
+     * relative like "tomorrow". **/
+    String TYPE_DATE = "date";
+    /** Time reference that includes a specific time. May be absolute such as "01/01/2000 5:30pm" or
+     * relative like "tomorrow at 5:30pm". **/
+    String TYPE_DATE_TIME = "datetime";
+    /** Flight number in IATA format. */
+    String TYPE_FLIGHT_NUMBER = "flight";
 
     /** @hide */
     @Retention(RetentionPolicy.SOURCE)
@@ -63,6 +77,9 @@
             TYPE_PHONE,
             TYPE_ADDRESS,
             TYPE_URL,
+            TYPE_DATE,
+            TYPE_DATE_TIME,
+            TYPE_FLIGHT_NUMBER,
     })
     @interface EntityType {}
 
diff --git a/core/java/android/view/textclassifier/TextClassifierImpl.java b/core/java/android/view/textclassifier/TextClassifierImpl.java
index 7db0e76..f434452 100644
--- a/core/java/android/view/textclassifier/TextClassifierImpl.java
+++ b/core/java/android/view/textclassifier/TextClassifierImpl.java
@@ -18,7 +18,9 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.app.SearchManager;
 import android.content.ComponentName;
+import android.content.ContentUris;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageManager;
@@ -28,6 +30,7 @@
 import android.os.LocaleList;
 import android.os.ParcelFileDescriptor;
 import android.provider.Browser;
+import android.provider.CalendarContract;
 import android.provider.ContactsContract;
 import android.provider.Settings;
 import android.text.util.Linkify;
@@ -42,6 +45,7 @@
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Calendar;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -49,6 +53,7 @@
 import java.util.Locale;
 import java.util.Map;
 import java.util.Objects;
+import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -73,7 +78,10 @@
                     TextClassifier.TYPE_ADDRESS,
                     TextClassifier.TYPE_EMAIL,
                     TextClassifier.TYPE_PHONE,
-                    TextClassifier.TYPE_URL));
+                    TextClassifier.TYPE_URL,
+                    TextClassifier.TYPE_DATE,
+                    TextClassifier.TYPE_DATE_TIME,
+                    TextClassifier.TYPE_FLIGHT_NUMBER));
     private static final List<String> ENTITY_TYPES_BASE =
             Collections.unmodifiableList(Arrays.asList(
                     TextClassifier.TYPE_ADDRESS,
@@ -167,9 +175,8 @@
                         .classifyText(string, startIndex, endIndex,
                                 getHintFlags(string, startIndex, endIndex));
                 if (results.length > 0) {
-                    final TextClassification classificationResult =
-                            createClassificationResult(results, string, startIndex, endIndex);
-                    return classificationResult;
+                    return createClassificationResult(
+                            results, string, startIndex, endIndex, options.getReferenceTime());
                 }
             }
         } catch (Throwable t) {
@@ -410,18 +417,24 @@
 
     private TextClassification createClassificationResult(
             SmartSelection.ClassificationResult[] classifications,
-            String text, int start, int end) {
+            String text, int start, int end, @Nullable Calendar referenceTime) {
         final String classifiedText = text.substring(start, end);
         final TextClassification.Builder builder = new TextClassification.Builder()
                 .setText(classifiedText);
 
         final int size = classifications.length;
+        SmartSelection.ClassificationResult highestScoringResult = null;
+        float highestScore = Float.MIN_VALUE;
         for (int i = 0; i < size; i++) {
             builder.setEntityType(classifications[i].mCollection, classifications[i].mScore);
+            if (classifications[i].mScore > highestScore) {
+                highestScoringResult = classifications[i];
+                highestScore = classifications[i].mScore;
+            }
         }
 
-        final String type = getHighestScoringType(classifications);
-        addActions(builder, IntentFactory.create(mContext, type, classifiedText));
+        addActions(builder, IntentFactory.create(
+                mContext, referenceTime, highestScoringResult, classifiedText));
 
         return builder.setSignature(getSignature(text, start, end)).build();
     }
@@ -441,11 +454,10 @@
             }
             if (resolveInfo != null && resolveInfo.activityInfo != null) {
                 final String packageName = resolveInfo.activityInfo.packageName;
-                CharSequence label;
+                final String label = IntentFactory.getLabel(mContext, intent);
                 Drawable icon;
                 if ("android".equals(packageName)) {
                     // Requires the chooser to find an activity to handle the intent.
-                    label = IntentFactory.getLabel(mContext, intent);
                     icon = null;
                 } else {
                     // A default activity will handle the intent.
@@ -455,16 +467,11 @@
                     if (icon == null) {
                         icon = resolveInfo.loadIcon(pm);
                     }
-                    label = resolveInfo.activityInfo.loadLabel(pm);
-                    if (label == null) {
-                        label = resolveInfo.loadLabel(pm);
-                    }
                 }
-                final String labelString = (label != null) ? label.toString() : null;
                 if (i == 0) {
-                    builder.setPrimaryAction(intent, labelString, icon);
+                    builder.setPrimaryAction(intent, label, icon);
                 } else {
-                    builder.addSecondaryAction(intent, labelString, icon);
+                    builder.addSecondaryAction(intent, label, icon);
                 }
             }
         }
@@ -483,23 +490,6 @@
         return flag;
     }
 
-    private static String getHighestScoringType(SmartSelection.ClassificationResult[] types) {
-        if (types.length < 1) {
-            return "";
-        }
-
-        String type = types[0].mCollection;
-        float highestScore = types[0].mScore;
-        final int size = types.length;
-        for (int i = 1; i < size; i++) {
-            if (types[i].mScore > highestScore) {
-                type = types[i].mCollection;
-                highestScore = types[i].mScore;
-            }
-        }
-        return type;
-    }
-
     /**
      * Closes the ParcelFileDescriptor and logs any errors that occur.
      */
@@ -514,58 +504,139 @@
     /**
      * Creates intents based on the classification type.
      */
-    private static final class IntentFactory {
+    static final class IntentFactory {
+
+        private static final long MIN_EVENT_FUTURE_MILLIS = TimeUnit.MINUTES.toMillis(5);
+        private static final long DEFAULT_EVENT_DURATION = TimeUnit.HOURS.toMillis(1);
 
         private IntentFactory() {}
 
         @NonNull
-        public static List<Intent> create(Context context, String type, String text) {
-            final List<Intent> intents = new ArrayList<>();
-            type = type.trim().toLowerCase(Locale.ENGLISH);
+        public static List<Intent> create(
+                Context context,
+                @Nullable Calendar referenceTime,
+                SmartSelection.ClassificationResult classification,
+                String text) {
+            final String type = classification.mCollection.trim().toLowerCase(Locale.ENGLISH);
             text = text.trim();
             switch (type) {
                 case TextClassifier.TYPE_EMAIL:
-                    intents.add(new Intent(Intent.ACTION_SENDTO)
-                            .setData(Uri.parse(String.format("mailto:%s", text))));
-                    intents.add(new Intent(Intent.ACTION_INSERT_OR_EDIT)
+                    return createForEmail(text);
+                case TextClassifier.TYPE_PHONE:
+                    return createForPhone(text);
+                case TextClassifier.TYPE_ADDRESS:
+                    return createForAddress(text);
+                case TextClassifier.TYPE_URL:
+                    return createForUrl(context, text);
+                case TextClassifier.TYPE_DATE:
+                case TextClassifier.TYPE_DATE_TIME:
+                    if (classification.mDatetime != null) {
+                        Calendar eventTime = Calendar.getInstance();
+                        eventTime.setTimeInMillis(classification.mDatetime.mMsSinceEpoch);
+                        return createForDatetime(type, referenceTime, eventTime);
+                    } else {
+                        return new ArrayList<>();
+                    }
+                case TextClassifier.TYPE_FLIGHT_NUMBER:
+                    return createForFlight(text);
+                default:
+                    return new ArrayList<>();
+            }
+        }
+
+        @NonNull
+        private static List<Intent> createForEmail(String text) {
+            return Arrays.asList(
+                    new Intent(Intent.ACTION_SENDTO)
+                            .setData(Uri.parse(String.format("mailto:%s", text))),
+                    new Intent(Intent.ACTION_INSERT_OR_EDIT)
                             .setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE)
                             .putExtra(ContactsContract.Intents.Insert.EMAIL, text));
-                    break;
-                case TextClassifier.TYPE_PHONE:
-                    intents.add(new Intent(Intent.ACTION_DIAL)
-                            .setData(Uri.parse(String.format("tel:%s", text))));
-                    intents.add(new Intent(Intent.ACTION_INSERT_OR_EDIT)
+        }
+
+        @NonNull
+        private static List<Intent> createForPhone(String text) {
+            return Arrays.asList(
+                    new Intent(Intent.ACTION_DIAL)
+                            .setData(Uri.parse(String.format("tel:%s", text))),
+                    new Intent(Intent.ACTION_INSERT_OR_EDIT)
                             .setType(ContactsContract.Contacts.CONTENT_ITEM_TYPE)
-                            .putExtra(ContactsContract.Intents.Insert.PHONE, text));
-                    intents.add(new Intent(Intent.ACTION_SENDTO)
+                            .putExtra(ContactsContract.Intents.Insert.PHONE, text),
+                    new Intent(Intent.ACTION_SENDTO)
                             .setData(Uri.parse(String.format("smsto:%s", text))));
-                    break;
-                case TextClassifier.TYPE_ADDRESS:
-                    intents.add(new Intent(Intent.ACTION_VIEW)
-                            .setData(Uri.parse(String.format("geo:0,0?q=%s", text))));
-                    break;
-                case TextClassifier.TYPE_URL:
-                    final String httpPrefix = "http://";
-                    final String httpsPrefix = "https://";
-                    if (text.toLowerCase().startsWith(httpPrefix)) {
-                        text = httpPrefix + text.substring(httpPrefix.length());
-                    } else if (text.toLowerCase().startsWith(httpsPrefix)) {
-                        text = httpsPrefix + text.substring(httpsPrefix.length());
-                    } else {
-                        text = httpPrefix + text;
-                    }
-                    intents.add(new Intent(Intent.ACTION_VIEW, Uri.parse(text))
-                            .putExtra(Browser.EXTRA_APPLICATION_ID, context.getPackageName()));
-                    break;
+        }
+
+        @NonNull
+        private static List<Intent> createForAddress(String text) {
+            return Arrays.asList(new Intent(Intent.ACTION_VIEW)
+                    .setData(Uri.parse(String.format("geo:0,0?q=%s", text))));
+        }
+
+        @NonNull
+        private static List<Intent> createForUrl(Context context, String text) {
+            final String httpPrefix = "http://";
+            final String httpsPrefix = "https://";
+            if (text.toLowerCase().startsWith(httpPrefix)) {
+                text = httpPrefix + text.substring(httpPrefix.length());
+            } else if (text.toLowerCase().startsWith(httpsPrefix)) {
+                text = httpsPrefix + text.substring(httpsPrefix.length());
+            } else {
+                text = httpPrefix + text;
+            }
+            return Arrays.asList(new Intent(Intent.ACTION_VIEW, Uri.parse(text))
+                    .putExtra(Browser.EXTRA_APPLICATION_ID, context.getPackageName()));
+        }
+
+        @NonNull
+        private static List<Intent> createForDatetime(
+                String type, @Nullable Calendar referenceTime, Calendar eventTime) {
+            if (referenceTime == null) {
+                // If no reference time was given, use now.
+                referenceTime = Calendar.getInstance();
+            }
+            List<Intent> intents = new ArrayList<>();
+            intents.add(createCalendarViewIntent(eventTime));
+            final long millisSinceReference =
+                    eventTime.getTimeInMillis() - referenceTime.getTimeInMillis();
+            if (millisSinceReference > MIN_EVENT_FUTURE_MILLIS) {
+                intents.add(createCalendarCreateEventIntent(eventTime, type));
             }
             return intents;
         }
 
+        @NonNull
+        private static List<Intent> createForFlight(String text) {
+            return Arrays.asList(new Intent(Intent.ACTION_WEB_SEARCH)
+                    .putExtra(SearchManager.QUERY, text));
+        }
+
+        @NonNull
+        private static Intent createCalendarViewIntent(Calendar eventTime) {
+            Uri.Builder builder = CalendarContract.CONTENT_URI.buildUpon();
+            builder.appendPath("time");
+            ContentUris.appendId(builder, eventTime.getTimeInMillis());
+            return new Intent(Intent.ACTION_VIEW).setData(builder.build());
+        }
+
+        @NonNull
+        private static Intent createCalendarCreateEventIntent(
+                Calendar eventTime, @EntityType String type) {
+            final boolean isAllDay = TextClassifier.TYPE_DATE.equals(type);
+            return new Intent(Intent.ACTION_INSERT)
+                    .setData(CalendarContract.Events.CONTENT_URI)
+                    .putExtra(CalendarContract.EXTRA_EVENT_ALL_DAY, isAllDay)
+                    .putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, eventTime.getTimeInMillis())
+                    .putExtra(CalendarContract.EXTRA_EVENT_END_TIME,
+                            eventTime.getTimeInMillis() + DEFAULT_EVENT_DURATION);
+        }
+
         @Nullable
         public static String getLabel(Context context, @Nullable Intent intent) {
             if (intent == null || intent.getAction() == null) {
                 return null;
             }
+            final String authority =
+                    intent.getData() == null ? null : intent.getData().getAuthority();
             switch (intent.getAction()) {
                 case Intent.ACTION_DIAL:
                     return context.getString(com.android.internal.R.string.dial);
@@ -578,6 +649,11 @@
                         default:
                             return null;
                     }
+                case Intent.ACTION_INSERT:
+                    if (CalendarContract.AUTHORITY.equals(authority)) {
+                        return context.getString(com.android.internal.R.string.add_calendar_event);
+                    }
+                    return null;
                 case Intent.ACTION_INSERT_OR_EDIT:
                     switch (intent.getDataString()) {
                         case ContactsContract.Contacts.CONTENT_ITEM_TYPE:
@@ -586,6 +662,9 @@
                             return null;
                     }
                 case Intent.ACTION_VIEW:
+                    if (CalendarContract.AUTHORITY.equals(authority)) {
+                        return context.getString(com.android.internal.R.string.view_calendar);
+                    }
                     switch (intent.getScheme()) {
                         case "geo":
                             return context.getString(com.android.internal.R.string.map);
@@ -595,6 +674,8 @@
                         default:
                             return null;
                     }
+                case Intent.ACTION_WEB_SEARCH:
+                    return context.getString(com.android.internal.R.string.view_flight);
                 default:
                     return null;
             }
diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.java
index 90cc481..cba11a8 100644
--- a/core/java/android/webkit/WebSettings.java
+++ b/core/java/android/webkit/WebSettings.java
@@ -931,12 +931,12 @@
      * Note that this setting affects only JavaScript access to file scheme
      * resources. Other access to such resources, for example, from image HTML
      * elements, is unaffected. To prevent possible violation of same domain policy
-     * on {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH} and earlier
-     * devices, you should explicitly set this value to {@code false}.
+     * when targeting {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH_MR1} and earlier,
+     * you should explicitly set this value to {@code false}.
      * <p>
-     * The default value is {@code true} for API level
+     * The default value is {@code true} for apps targeting
      * {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH_MR1} and below,
-     * and {@code false} for API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN}
+     * and {@code false} when targeting {@link android.os.Build.VERSION_CODES#JELLY_BEAN}
      * and above.
      *
      * @param flag whether JavaScript running in the context of a file scheme
@@ -947,18 +947,18 @@
     /**
      * Sets whether JavaScript running in the context of a file scheme URL
      * should be allowed to access content from other file scheme URLs. To
-     * enable the most restrictive, and therefore secure policy, this setting
+     * enable the most restrictive, and therefore secure, policy this setting
      * should be disabled. Note that the value of this setting is ignored if
      * the value of {@link #getAllowUniversalAccessFromFileURLs} is {@code true}.
      * Note too, that this setting affects only JavaScript access to file scheme
      * resources. Other access to such resources, for example, from image HTML
      * elements, is unaffected. To prevent possible violation of same domain policy
-     * on {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH} and earlier
-     * devices, you should explicitly set this value to {@code false}.
+     * when targeting {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH_MR1} and earlier,
+     * you should explicitly set this value to {@code false}.
      * <p>
-     * The default value is {@code true} for API level
+     * The default value is {@code true} for apps targeting
      * {@link android.os.Build.VERSION_CODES#ICE_CREAM_SANDWICH_MR1} and below,
-     * and {@code false} for API level {@link android.os.Build.VERSION_CODES#JELLY_BEAN}
+     * and {@code false} when targeting {@link android.os.Build.VERSION_CODES#JELLY_BEAN}
      * and above.
      *
      * @param flag whether JavaScript running in the context of a file scheme
@@ -1394,26 +1394,26 @@
 
 
     /**
-     * Sets whether Safe Browsing is enabled. Safe browsing allows WebView to
+     * Sets whether Safe Browsing is enabled. Safe Browsing allows WebView to
      * protect against malware and phishing attacks by verifying the links.
      *
      * <p>
-     * Safe browsing is disabled by default. The recommended way to enable Safe browsing is using a
-     * manifest tag to change the default value to enabled for all WebViews (read <a
-     * href="{@docRoot}reference/android/webkit/WebView.html">general Safe Browsing info</a>).
+     * Safe Browsing can be disabled for all WebViews using a manifest tag (read <a
+     * href="{@docRoot}reference/android/webkit/WebView.html">general Safe Browsing info</a>). The
+     * manifest tag has a lower precedence than this API.
      *
      * <p>
-     * This API overrides the manifest tag value for this WebView.
+     * Safe Browsing is enabled by default for devices which support it.
      *
-     * @param enabled Whether Safe browsing is enabled.
+     * @param enabled Whether Safe Browsing is enabled.
      */
     public abstract void setSafeBrowsingEnabled(boolean enabled);
 
     /**
-     * Gets whether Safe browsing is enabled.
+     * Gets whether Safe Browsing is enabled.
      * See {@link #setSafeBrowsingEnabled}.
      *
-     * @return {@code true} if Safe browsing is enabled and {@code false} otherwise.
+     * @return {@code true} if Safe Browsing is enabled and {@code false} otherwise.
      */
     public abstract boolean getSafeBrowsingEnabled();
 
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 2c51ee9..d2cb70e 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -327,22 +327,25 @@
  * <h3>Safe Browsing</h3>
  *
  * <p>
- * If Safe Browsing is enabled, WebView will block malicious URLs and present a warning UI to the
- * user to allow them to navigate back safely or proceed to the malicious page.
+ * With Safe Browsing, WebView will block malicious URLs and present a warning UI to the user to
+ * allow them to navigate back safely or proceed to the malicious page.
  * <p>
- * The recommended way for apps to enable the feature is putting the following tag in the manifest's
- * {@code <application>} element:
+ * Safe Browsing is enabled by default on devices which support it. If your app needs to disable
+ * Safe Browsing for all WebViews, it can do so in the manifest's {@code <application>} element:
  * <p>
  * <pre>
  * &lt;manifest&gt;
  *     &lt;application&gt;
  *         ...
  *         &lt;meta-data android:name=&quot;android.webkit.WebView.EnableSafeBrowsing&quot;
- *             android:value=&quot;true&quot; /&gt;
+ *             android:value=&quot;false&quot; /&gt;
  *     &lt;/application&gt;
  * &lt;/manifest&gt;
  * </pre>
  *
+ * <p>
+ * Otherwise, see {@link WebSettings#setSafeBrowsingEnabled}.
+ *
  */
 // Implementation notes.
 // The WebView is a thin API class that delegates its public API to a backend WebViewProvider
@@ -1670,9 +1673,8 @@
      * invoked with {@code true}. Safe Browsing is not fully supported on all devices. For those
      * devices {@code callback} will receive {@code false}.
      * <p>
-     * This does not enable the Safe Browsing feature itself, and should only be called if Safe
-     * Browsing is enabled by the manifest tag or {@link WebSettings#setSafeBrowsingEnabled}. This
-     * prepares resources used for Safe Browsing.
+     * This should not be called if Safe Browsing has been disabled by manifest tag or {@link
+     * WebSettings#setSafeBrowsingEnabled}. This prepares resources used for Safe Browsing.
      * <p>
      * This should be called with the Application Context (and will always use the Application
      * context to do its work regardless).
diff --git a/core/java/android/widget/AbsListView.java b/core/java/android/widget/AbsListView.java
index 6bee58f..594d240 100644
--- a/core/java/android/widget/AbsListView.java
+++ b/core/java/android/widget/AbsListView.java
@@ -19,6 +19,7 @@
 import android.annotation.ColorInt;
 import android.annotation.DrawableRes;
 import android.annotation.NonNull;
+import android.annotation.TestApi;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
@@ -30,6 +31,7 @@
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.Handler;
+import android.os.LocaleList;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.StrictMode;
@@ -2744,7 +2746,7 @@
     }
 
     private void drawSelector(Canvas canvas) {
-        if (!mSelectorRect.isEmpty()) {
+        if (shouldDrawSelector()) {
             final Drawable selector = mSelector;
             selector.setBounds(mSelectorRect);
             selector.draw(canvas);
@@ -2752,6 +2754,14 @@
     }
 
     /**
+     * @hide
+     */
+    @TestApi
+    public final boolean shouldDrawSelector() {
+        return !mSelectorRect.isEmpty();
+    }
+
+    /**
      * Controls whether the selection highlight drawable should be drawn on top of the item or
      * behind it.
      *
@@ -6026,6 +6036,11 @@
         public boolean commitContent(InputContentInfo inputContentInfo, int flags, Bundle opts) {
             return getTarget().commitContent(inputContentInfo, flags, opts);
         }
+
+        @Override
+        public void reportLanguageHint(@NonNull LocaleList languageHint) {
+            getTarget().reportLanguageHint(languageHint);
+        }
     }
 
     /**
diff --git a/core/java/android/widget/MediaControlView2.java b/core/java/android/widget/MediaControlView2.java
index f0a2728..f1d633a 100644
--- a/core/java/android/widget/MediaControlView2.java
+++ b/core/java/android/widget/MediaControlView2.java
@@ -16,6 +16,7 @@
 
 package android.widget;
 
+import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Context;
@@ -28,6 +29,8 @@
 import android.view.MotionEvent;
 import android.view.View;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 /**
  * A View that contains the controls for MediaPlayer2.
  * It provides a wide range of UI including buttons such as "Play/Pause", "Rewind", "Fast Forward",
@@ -48,7 +51,23 @@
  * @hide
  */
 public class MediaControlView2 extends FrameLayout {
-    // TODO: should overflow button be included?
+    /** @hide */
+    @IntDef({
+            BUTTON_PLAY_PAUSE,
+            BUTTON_FFWD,
+            BUTTON_REW,
+            BUTTON_NEXT,
+            BUTTON_PREV,
+            BUTTON_SUBTITLE,
+            BUTTON_FULL_SCREEN,
+            BUTTON_OVERFLOW,
+            BUTTON_MUTE,
+            BUTTON_ASPECT_RATIO,
+            BUTTON_SETTINGS
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Button {}
+
     public static final int BUTTON_PLAY_PAUSE = 1;
     public static final int BUTTON_FFWD = 2;
     public static final int BUTTON_REW = 3;
@@ -129,48 +148,6 @@
     }
 
     /**
-     * Returns whether the media is currently playing or not.
-     */
-    public boolean isPlaying() {
-        return mProvider.isPlaying_impl();
-    }
-
-    /**
-     * Returns the current position of the media in milliseconds.
-     */
-    public int getCurrentPosition() {
-        return mProvider.getCurrentPosition_impl();
-    }
-
-    /**
-     * Returns the percentage of how much of the media is currently buffered in storage.
-     */
-    public int getBufferPercentage() {
-        return mProvider.getBufferPercentage_impl();
-    }
-
-    /**
-     * Returns whether the media can be paused or not.
-     */
-    public boolean canPause() {
-        return mProvider.canPause_impl();
-    }
-
-    /**
-     * Returns whether the media can be rewound or not.
-     */
-    public boolean canSeekBackward() {
-        return mProvider.canSeekBackward_impl();
-    }
-
-    /**
-     * Returns whether the media can be fast-forwarded or not.
-     */
-    public boolean canSeekForward() {
-        return mProvider.canSeekForward_impl();
-    }
-
-    /**
      * If the media selected has a subtitle track, calling this method will display the subtitle at
      * the bottom of the view. If a media has multiple subtitle tracks, this method will select the
      * first one of them.
diff --git a/core/java/android/widget/VideoView2.java b/core/java/android/widget/VideoView2.java
index 8650c0a..7f0c086 100644
--- a/core/java/android/widget/VideoView2.java
+++ b/core/java/android/widget/VideoView2.java
@@ -23,6 +23,7 @@
 import android.media.AudioAttributes;
 import android.media.AudioManager;
 import android.media.MediaPlayerBase;
+import android.media.session.MediaController;
 import android.media.update.ApiLoader;
 import android.media.update.VideoView2Provider;
 import android.media.update.ViewProvider;
@@ -76,8 +77,8 @@
  * If a developer wants to attach a customed MediaControlView2, then set enableControlView attribute
  * to false and assign the customed media control widget using {@link #setMediaControlView2}.
  * <li> VideoView2 is integrated with MediaPlayer2 while VideoView is integrated with MediaPlayer.
- * <li> VideoView2 is integrated with MediaSession2 and so it responses with media key events.
- * A VideoView2 keeps a MediaSession2 instance internally and connects it to a corresponding
+ * <li> VideoView2 is integrated with MediaSession and so it responses with media key events.
+ * A VideoView2 keeps a MediaSession instance internally and connects it to a corresponding
  * MediaControlView2 instance.
  * </p>
  * </ul>
@@ -159,60 +160,18 @@
         return mProvider.getMediaControlView2_impl();
     }
 
-    /**
-     * Starts playback with the media contents specified by {@link #setVideoURI} and
-     * {@link #setVideoPath}.
-     * If it has been paused, this method will resume playback from the current position.
-     */
-    public void start() {
-        mProvider.start_impl();
-    }
 
     /**
-     * Pauses playback.
+     * Returns MediaController instance which is connected with MediaSession that VideoView2 is
+     * using. This method should be called when VideoView2 is attached to window, or it throws
+     * IllegalStateException, since internal MediaSession instance is not available until
+     * this view is attached to window. Please check {@link android.view.View#isAttachedToWindow}
+     * before calling this method.
+     *
+     * @throws IllegalStateException if interal MediaSession is not created yet.
      */
-    public void pause() {
-        mProvider.pause_impl();
-    }
-
-    /**
-     * Gets the duration of the media content specified by #setVideoURI and #setVideoPath
-     * in milliseconds.
-     */
-    public int getDuration() {
-        return mProvider.getDuration_impl();
-    }
-
-    /**
-     * Gets current playback position in milliseconds.
-     */
-    public int getCurrentPosition() {
-        return mProvider.getCurrentPosition_impl();
-    }
-
-    // TODO: mention about key-frame related behavior.
-    /**
-     * Moves the media by specified time position.
-     * @param msec the offset in milliseconds from the start to seek to.
-     */
-    public void seekTo(int msec) {
-        mProvider.seekTo_impl(msec);
-    }
-
-    /**
-     * Says if the media is currently playing.
-     * @return true if the media is playing, false if it is not (eg. paused or stopped).
-     */
-    public boolean isPlaying() {
-        return mProvider.isPlaying_impl();
-    }
-
-    // TODO: check what will return if it is a local media.
-    /**
-     * Gets the percentage (0-100) of the content that has been buffered or played so far.
-     */
-    public int getBufferPercentage() {
-        return mProvider.getBufferPercentage_impl();
+    public MediaController getMediaController() {
+        return mProvider.getMediaController_impl();
     }
 
     /**
@@ -244,7 +203,6 @@
         mProvider.setFullScreen_impl(fullScreen);
     }
 
-    // TODO: This should be revised after integration with MediaPlayer2.
     /**
      * Sets playback speed.
      *
@@ -254,21 +212,12 @@
      * be reset to the normal speed 1.0f.
      * @param speed the playback speed. It should be positive.
      */
+    // TODO: Support this via MediaController2.
     public void setSpeed(float speed) {
         mProvider.setSpeed_impl(speed);
     }
 
     /**
-     * Returns current speed setting.
-     *
-     * If setSpeed() has never been called, returns the default value 1.0f.
-     * @return current speed setting
-     */
-    public float getSpeed() {
-        return mProvider.getSpeed_impl();
-    }
-
-    /**
      * Sets which type of audio focus will be requested during the playback, or configures playback
      * to not request audio focus. Valid values for focus requests are
      * {@link AudioManager#AUDIOFOCUS_GAIN}, {@link AudioManager#AUDIOFOCUS_GAIN_TRANSIENT},
@@ -367,14 +316,6 @@
     }
 
     /**
-     * Stops playback and release all the resources. This should be called whenever a VideoView2
-     * instance is no longer to be used.
-     */
-    public void stopPlayback() {
-        mProvider.stopPlayback_impl();
-    }
-
-    /**
      * Registers a callback to be invoked when the media file is loaded and ready to go.
      *
      * @param l the callback that will be run.
diff --git a/core/java/com/android/internal/app/IBatteryStats.aidl b/core/java/com/android/internal/app/IBatteryStats.aidl
index d3e807d..514ff76 100644
--- a/core/java/com/android/internal/app/IBatteryStats.aidl
+++ b/core/java/com/android/internal/app/IBatteryStats.aidl
@@ -91,8 +91,7 @@
 
     void noteVibratorOn(int uid, long durationMillis);
     void noteVibratorOff(int uid);
-    void noteStartGps(int uid);
-    void noteStopGps(int uid);
+    void noteGpsChanged(in WorkSource oldSource, in WorkSource newSource);
     void noteGpsSignalQuality(int signalLevel);
     void noteScreenState(int state);
     void noteScreenBrightness(int brightness);
diff --git a/core/java/com/android/internal/app/LocaleStore.java b/core/java/com/android/internal/app/LocaleStore.java
index 2b0b5ee..d247013 100644
--- a/core/java/com/android/internal/app/LocaleStore.java
+++ b/core/java/com/android/internal/app/LocaleStore.java
@@ -146,7 +146,11 @@
 
         private String getLangScriptKey() {
             if (mLangScriptKey == null) {
-                Locale parentWithScript = getParent(LocaleHelper.addLikelySubtags(mLocale));
+                Locale baseLocale = new Locale.Builder()
+                    .setLocale(mLocale)
+                    .setExtension(Locale.UNICODE_LOCALE_EXTENSION, "")
+                    .build();
+                Locale parentWithScript = getParent(LocaleHelper.addLikelySubtags(baseLocale));
                 mLangScriptKey =
                         (parentWithScript == null)
                         ? mLocale.toLanguageTag()
diff --git a/core/java/com/android/internal/backup/IBackupTransport.aidl b/core/java/com/android/internal/backup/IBackupTransport.aidl
index 147438c..f8117a7 100644
--- a/core/java/com/android/internal/backup/IBackupTransport.aidl
+++ b/core/java/com/android/internal/backup/IBackupTransport.aidl
@@ -306,4 +306,13 @@
      *    operation will immediately be finished with no further attempts to restore app data.
      */
     int abortFullRestore();
+
+    /**
+     * Returns flags with additional information about the transport, which is accessible to the
+     * {@link android.app.backup.BackupAgent}. This allows the agent to decide what to backup or
+     * restore based on properties of the transport.
+     *
+     * <p>For supported flags see {@link android.app.backup.BackupAgent}.
+     */
+    int getTransportFlags();
 }
diff --git a/core/java/com/android/internal/os/BatteryStatsImpl.java b/core/java/com/android/internal/os/BatteryStatsImpl.java
index 039b66d..ee3bec8 100644
--- a/core/java/com/android/internal/os/BatteryStatsImpl.java
+++ b/core/java/com/android/internal/os/BatteryStatsImpl.java
@@ -4587,8 +4587,35 @@
 
     int mGpsNesting;
 
-    public void noteStartGpsLocked(int uid) {
-        uid = mapUid(uid);
+    public void noteGpsChangedLocked(WorkSource oldWs, WorkSource newWs) {
+        for (int i = 0; i < newWs.size(); ++i) {
+            noteStartGpsLocked(newWs.get(i), null);
+        }
+
+        for (int i = 0; i < oldWs.size(); ++i) {
+            noteStopGpsLocked((oldWs.get(i)), null);
+        }
+
+        List<WorkChain>[] wcs = WorkSource.diffChains(oldWs, newWs);
+        if (wcs != null) {
+            if (wcs[0] != null) {
+                final List<WorkChain> newChains = wcs[0];
+                for (int i = 0; i < newChains.size(); ++i) {
+                    noteStartGpsLocked(-1, newChains.get(i));
+                }
+            }
+
+            if (wcs[1] != null) {
+                final List<WorkChain> goneChains = wcs[1];
+                for (int i = 0; i < goneChains.size(); ++i) {
+                    noteStopGpsLocked(-1, goneChains.get(i));
+                }
+            }
+        }
+    }
+
+    private void noteStartGpsLocked(int uid, WorkChain workChain) {
+        uid = getAttributionUid(uid, workChain);
         final long elapsedRealtime = mClocks.elapsedRealtime();
         final long uptime = mClocks.uptimeMillis();
         if (mGpsNesting == 0) {
@@ -4598,11 +4625,19 @@
             addHistoryRecordLocked(elapsedRealtime, uptime);
         }
         mGpsNesting++;
+
+        if (workChain == null) {
+            StatsLog.write_non_chained(StatsLog.GPS_SCAN_STATE_CHANGED, uid, null, 1);
+        } else {
+            StatsLog.write(StatsLog.GPS_SCAN_STATE_CHANGED,
+                    workChain.getUids(), workChain.getTags(), 1);
+        }
+
         getUidStatsLocked(uid).noteStartGps(elapsedRealtime);
     }
 
-    public void noteStopGpsLocked(int uid) {
-        uid = mapUid(uid);
+    private void noteStopGpsLocked(int uid, WorkChain workChain) {
+        uid = getAttributionUid(uid, workChain);
         final long elapsedRealtime = mClocks.elapsedRealtime();
         final long uptime = mClocks.uptimeMillis();
         mGpsNesting--;
@@ -4614,6 +4649,14 @@
             stopAllGpsSignalQualityTimersLocked(-1);
             mGpsSignalQualityBin = -1;
         }
+
+        if (workChain == null) {
+            StatsLog.write_non_chained(StatsLog.GPS_SCAN_STATE_CHANGED, uid, null, 0);
+        } else {
+            StatsLog.write(StatsLog.GPS_SCAN_STATE_CHANGED, workChain.getUids(),
+                    workChain.getTags(), 0);
+        }
+
         getUidStatsLocked(uid).noteStopGps(elapsedRealtime);
     }
 
@@ -6211,8 +6254,20 @@
     }
 
     @Override public long getGpsBatteryDrainMaMs() {
-        //TODO: Add GPS power computation (b/67213967)
-        return 0;
+        final double opVolt = mPowerProfile.getAveragePower(
+            PowerProfile.POWER_GPS_OPERATING_VOLTAGE) / 1000.0;
+        if (opVolt == 0) {
+            return 0;
+        }
+        double energyUsedMaMs = 0.0;
+        final int which = STATS_SINCE_CHARGED;
+        final long rawRealtime = SystemClock.elapsedRealtime() * 1000;
+        for(int i=0; i < GnssMetrics.NUM_GPS_SIGNAL_QUALITY_LEVELS; i++) {
+            energyUsedMaMs
+                += mPowerProfile.getAveragePower(PowerProfile.POWER_GPS_SIGNAL_QUALITY_BASED, i)
+                * (getGpsSignalQualityTime(i, rawRealtime, which) / 1000);
+        }
+        return (long) energyUsedMaMs;
     }
 
     @Override public long getPhoneOnTime(long elapsedRealtimeUs, int which) {
@@ -9830,9 +9885,7 @@
         public void noteStartSensor(int sensor, long elapsedRealtimeMs) {
             DualTimer t = getSensorTimerLocked(sensor, /* create= */ true);
             t.startRunningLocked(elapsedRealtimeMs);
-            if (sensor == Sensor.GPS) {
-                StatsLog.write_non_chained(StatsLog.GPS_SCAN_STATE_CHANGED, getUid(), null, 1);
-            } else {
+            if (sensor != Sensor.GPS) {
                 StatsLog.write_non_chained(StatsLog.SENSOR_STATE_CHANGED, getUid(), null, sensor,
                         1);
             }
@@ -9843,14 +9896,9 @@
             DualTimer t = getSensorTimerLocked(sensor, false);
             if (t != null) {
                 t.stopRunningLocked(elapsedRealtimeMs);
-                if (!t.isRunningLocked()) { // only tell statsd if truly stopped
-                    if (sensor == Sensor.GPS) {
-                        StatsLog.write_non_chained(StatsLog.GPS_SCAN_STATE_CHANGED, getUid(), null,
-                                0);
-                    } else {
-                        StatsLog.write_non_chained(StatsLog.SENSOR_STATE_CHANGED, getUid(), null,
-                                sensor, 0);
-                    }
+                if (sensor != Sensor.GPS) {
+                    StatsLog.write_non_chained(StatsLog.SENSOR_STATE_CHANGED, getUid(), null,
+                             sensor, 0);
                 }
             }
         }
diff --git a/core/java/com/android/internal/os/PowerProfile.java b/core/java/com/android/internal/os/PowerProfile.java
index 240fc51..f4436d3 100644
--- a/core/java/com/android/internal/os/PowerProfile.java
+++ b/core/java/com/android/internal/os/PowerProfile.java
@@ -104,12 +104,18 @@
     public static final String POWER_MODEM_CONTROLLER_OPERATING_VOLTAGE =
             "modem.controller.voltage";
 
-    /**
+     /**
      * Power consumption when GPS is on.
      */
     public static final String POWER_GPS_ON = "gps.on";
 
     /**
+     * GPS power parameters based on signal quality
+     */
+    public static final String POWER_GPS_SIGNAL_QUALITY_BASED = "gps.signalqualitybased";
+    public static final String POWER_GPS_OPERATING_VOLTAGE = "gps.voltage";
+
+    /**
      * Power consumption when Bluetooth driver is on.
      * @deprecated
      */
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index 079ba0b..f9a2341 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -53,6 +53,8 @@
     public static final int DISABLE_VERIFIER = 1 << 9;
     /** Only use oat files located in /system. Otherwise use dex/jar/apk . */
     public static final int ONLY_USE_SYSTEM_OAT_FILES = 1 << 10;
+    /** Do not enfore hidden API access restrictions. */
+    public static final int DISABLE_HIDDEN_API_CHECKS = 1 << 11;
 
     /** No external storage should be mounted. */
     public static final int MOUNT_EXTERNAL_NONE = IVold.REMOUNT_MODE_NONE;
@@ -156,6 +158,9 @@
      */
     public static int forkSystemServer(int uid, int gid, int[] gids, int runtimeFlags,
             int[][] rlimits, long permittedCapabilities, long effectiveCapabilities) {
+        // SystemServer is always allowed to use hidden APIs.
+        runtimeFlags |= DISABLE_HIDDEN_API_CHECKS;
+
         VM_HOOKS.preFork();
         // Resets nice priority for zygote process.
         resetNicePriority();
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 2671f29..39279b5 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -98,6 +98,10 @@
 
     private static final String SOCKET_NAME_ARG = "--socket-name=";
 
+    /* Dexopt flag to disable hidden API access checks when dexopting SystemServer.
+     * Must be kept in sync with com.android.server.pm.Installer. */
+    private static final int DEXOPT_DISABLE_HIDDEN_API_CHECKS = 1 << 10;
+
     /**
      * Used to pre-load resources.
      */
@@ -565,7 +569,10 @@
             if (dexoptNeeded != DexFile.NO_DEXOPT_NEEDED) {
                 final String packageName = "*";
                 final String outputPath = null;
-                final int dexFlags = 0;
+                // Dexopt with a flag which lifts restrictions on hidden API usage.
+                // Offending methods would otherwise be re-verified at runtime and
+                // we want to avoid the performance overhead of that.
+                final int dexFlags = DEXOPT_DISABLE_HIDDEN_API_CHECKS;
                 final String compilerFilter = systemServerFilter;
                 final String uuid = StorageManager.UUID_PRIVATE_INTERNAL;
                 final String seInfo = null;
@@ -576,7 +583,7 @@
                     installd.dexopt(classPathElement, Process.SYSTEM_UID, packageName,
                             instructionSet, dexoptNeeded, outputPath, dexFlags, compilerFilter,
                             uuid, classLoaderContext, seInfo, false /* downgrade */,
-                            targetSdkVersion);
+                            targetSdkVersion, /*profileName*/ null);
                 } catch (RemoteException | ServiceSpecificException e) {
                     // Ignore (but log), we need this on the classpath for fallback mode.
                     Log.w(TAG, "Failed compiling classpath element for system server: "
diff --git a/core/java/com/android/internal/view/IInputConnectionWrapper.java b/core/java/com/android/internal/view/IInputConnectionWrapper.java
index 28291ae..e08caa8 100644
--- a/core/java/com/android/internal/view/IInputConnectionWrapper.java
+++ b/core/java/com/android/internal/view/IInputConnectionWrapper.java
@@ -23,6 +23,7 @@
 import android.annotation.Nullable;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.LocaleList;
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
@@ -64,6 +65,7 @@
     private static final int DO_REQUEST_UPDATE_CURSOR_ANCHOR_INFO = 140;
     private static final int DO_CLOSE_CONNECTION = 150;
     private static final int DO_COMMIT_CONTENT = 160;
+    private static final int DO_REPORT_LANGUAGE_HINT = 170;
 
     @GuardedBy("mLock")
     @Nullable
@@ -217,6 +219,10 @@
                 callback));
     }
 
+    public void reportLanguageHint(@NonNull LocaleList languageHint) {
+        dispatchMessage(obtainMessageO(DO_REPORT_LANGUAGE_HINT, languageHint));
+    }
+
     void dispatchMessage(Message msg) {
         // If we are calling this from the main thread, then we can call
         // right through.  Otherwise, we need to send the message to the
@@ -577,6 +583,16 @@
                 }
                 return;
             }
+            case DO_REPORT_LANGUAGE_HINT: {
+                final LocaleList languageHint = (LocaleList) msg.obj;
+                final InputConnection ic = getInputConnection();
+                if (ic == null || !isActive()) {
+                    Log.w(TAG, "reportLanguageHint on inactive InputConnection");
+                    return;
+                }
+                ic.reportLanguageHint(languageHint);
+                return;
+            }
         }
         Log.w(TAG, "Unhandled message code: " + msg.what);
     }
diff --git a/core/java/com/android/internal/view/IInputContext.aidl b/core/java/com/android/internal/view/IInputContext.aidl
index c227991..e69a87ff 100644
--- a/core/java/com/android/internal/view/IInputContext.aidl
+++ b/core/java/com/android/internal/view/IInputContext.aidl
@@ -17,6 +17,7 @@
 package com.android.internal.view;
 
 import android.os.Bundle;
+import android.os.LocaleList;
 import android.view.KeyEvent;
 import android.view.inputmethod.CompletionInfo;
 import android.view.inputmethod.CorrectionInfo;
@@ -78,4 +79,6 @@
 
     void commitContent(in InputContentInfo inputContentInfo, int flags, in Bundle opts, int sec,
             IInputContextCallback callback);
+
+    void reportLanguageHint(in LocaleList languageHint);
 }
diff --git a/core/java/com/android/internal/view/InputConnectionWrapper.java b/core/java/com/android/internal/view/InputConnectionWrapper.java
index 5b65bbe..34be598 100644
--- a/core/java/com/android/internal/view/InputConnectionWrapper.java
+++ b/core/java/com/android/internal/view/InputConnectionWrapper.java
@@ -22,6 +22,7 @@
 import android.inputmethodservice.AbstractInputMethodService;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.LocaleList;
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.util.Log;
@@ -620,6 +621,14 @@
     }
 
     @AnyThread
+    public void reportLanguageHint(@NonNull LocaleList languageHint) {
+        try {
+            mIInputContext.reportLanguageHint(languageHint);
+        } catch (RemoteException e) {
+        }
+    }
+
+    @AnyThread
     private boolean isMethodMissing(@MissingMethodFlags final int methodFlag) {
         return (mMissingMethods & methodFlag) == methodFlag;
     }
diff --git a/core/java/com/android/internal/view/menu/MenuPopupHelper.java b/core/java/com/android/internal/view/menu/MenuPopupHelper.java
index 6af41a5..324f923 100644
--- a/core/java/com/android/internal/view/menu/MenuPopupHelper.java
+++ b/core/java/com/android/internal/view/menu/MenuPopupHelper.java
@@ -256,7 +256,7 @@
             final int hgrav = Gravity.getAbsoluteGravity(mDropDownGravity,
                     mAnchorView.getLayoutDirection()) & Gravity.HORIZONTAL_GRAVITY_MASK;
             if (hgrav == Gravity.RIGHT) {
-                xOffset += mAnchorView.getWidth();
+                xOffset -= mAnchorView.getWidth();
             }
 
             popup.setHorizontalOffset(xOffset);
diff --git a/core/java/com/android/internal/view/menu/StandardMenuPopup.java b/core/java/com/android/internal/view/menu/StandardMenuPopup.java
index d9ca5be..445379b 100644
--- a/core/java/com/android/internal/view/menu/StandardMenuPopup.java
+++ b/core/java/com/android/internal/view/menu/StandardMenuPopup.java
@@ -263,7 +263,6 @@
                     mShownAnchorView, mOverflowOnly, mPopupStyleAttr, mPopupStyleRes);
             subPopup.setPresenterCallback(mPresenterCallback);
             subPopup.setForceShowIcon(MenuPopup.shouldPreserveIconSpacing(subMenu));
-            subPopup.setGravity(mDropDownGravity);
 
             // Pass responsibility for handling onDismiss to the submenu.
             subPopup.setOnDismissListener(mOnDismissListener);
@@ -273,8 +272,17 @@
             mMenu.close(false /* closeAllMenus */);
 
             // Show the new sub-menu popup at the same location as this popup.
-            final int horizontalOffset = mPopup.getHorizontalOffset();
+            int horizontalOffset = mPopup.getHorizontalOffset();
             final int verticalOffset = mPopup.getVerticalOffset();
+
+            // As xOffset of parent menu popup is subtracted with Anchor width for Gravity.RIGHT,
+            // So, again to display sub-menu popup in same xOffset, add the Anchor width.
+            final int hgrav = Gravity.getAbsoluteGravity(mDropDownGravity,
+                mAnchorView.getLayoutDirection()) & Gravity.HORIZONTAL_GRAVITY_MASK;
+            if (hgrav == Gravity.RIGHT) {
+              horizontalOffset += mAnchorView.getWidth();
+            }
+
             if (subPopup.tryShow(horizontalOffset, verticalOffset)) {
                 if (mPresenterCallback != null) {
                     mPresenterCallback.onOpenSubMenu(subMenu);
diff --git a/core/jni/Android.bp b/core/jni/Android.bp
index 47765d9..5751fc9 100644
--- a/core/jni/Android.bp
+++ b/core/jni/Android.bp
@@ -110,8 +110,8 @@
         "android_util_AssetManager.cpp",
         "android_util_Binder.cpp",
         "android_util_EventLog.cpp",
-        "android_util_MemoryIntArray.cpp",
         "android_util_Log.cpp",
+        "android_util_MemoryIntArray.cpp",
         "android_util_PathParser.cpp",
         "android_util_Process.cpp",
         "android_util_StringBlock.cpp",
@@ -163,6 +163,7 @@
         "android_media_AudioTrack.cpp",
         "android_media_DeviceCallback.cpp",
         "android_media_JetPlayer.cpp",
+        "android_media_MediaMetricsJNI.cpp",
         "android_media_RemoteDisplay.cpp",
         "android_media_ToneGenerator.cpp",
         "android_hardware_Camera.cpp",
@@ -189,6 +190,7 @@
         "android_backup_FileBackupHelperBase.cpp",
         "android_backup_BackupHelperDispatcher.cpp",
         "android_app_backup_FullBackup.cpp",
+        "android_content_res_ApkAssets.cpp",
         "android_content_res_ObbScanner.cpp",
         "android_content_res_Configuration.cpp",
         "android_animation_PropertyValuesHolder.cpp",
@@ -260,6 +262,7 @@
         "libselinux",
         "libicuuc",
         "libmedia",
+        "libmediametrics",
         "libaudioclient",
         "libjpeg",
         "libusbhost",
diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index aa9a824..e3b5c8f 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -122,6 +122,7 @@
 extern int register_android_util_PathParser(JNIEnv* env);
 extern int register_android_content_StringBlock(JNIEnv* env);
 extern int register_android_content_XmlBlock(JNIEnv* env);
+extern int register_android_content_res_ApkAssets(JNIEnv* env);
 extern int register_android_graphics_Canvas(JNIEnv* env);
 extern int register_android_graphics_CanvasProperty(JNIEnv* env);
 extern int register_android_graphics_ColorFilter(JNIEnv* env);
@@ -1340,6 +1341,7 @@
     REG_JNI(register_android_content_AssetManager),
     REG_JNI(register_android_content_StringBlock),
     REG_JNI(register_android_content_XmlBlock),
+    REG_JNI(register_android_content_res_ApkAssets),
     REG_JNI(register_android_text_AndroidCharacter),
     REG_JNI(register_android_text_Hyphenator),
     REG_JNI(register_android_text_MeasuredParagraph),
diff --git a/core/jni/android/graphics/AnimatedImageDrawable.cpp b/core/jni/android/graphics/AnimatedImageDrawable.cpp
index 8b3ce66..262b553 100644
--- a/core/jni/android/graphics/AnimatedImageDrawable.cpp
+++ b/core/jni/android/graphics/AnimatedImageDrawable.cpp
@@ -72,7 +72,6 @@
     }
 
     sk_sp<AnimatedImageDrawable> drawable(new AnimatedImageDrawable(animatedImg));
-    drawable->start();
     return reinterpret_cast<jlong>(drawable.release());
 }
 
@@ -114,9 +113,9 @@
     return drawable->isRunning();
 }
 
-static void AnimatedImageDrawable_nStart(JNIEnv* env, jobject /*clazz*/, jlong nativePtr) {
+static jboolean AnimatedImageDrawable_nStart(JNIEnv* env, jobject /*clazz*/, jlong nativePtr) {
     auto* drawable = reinterpret_cast<AnimatedImageDrawable*>(nativePtr);
-    drawable->start();
+    return drawable->start();
 }
 
 static void AnimatedImageDrawable_nStop(JNIEnv* env, jobject /*clazz*/, jlong nativePtr) {
@@ -138,7 +137,7 @@
     { "nGetAlpha",           "(J)I",                                                         (void*) AnimatedImageDrawable_nGetAlpha },
     { "nSetColorFilter",     "(JJ)V",                                                        (void*) AnimatedImageDrawable_nSetColorFilter },
     { "nIsRunning",          "(J)Z",                                                         (void*) AnimatedImageDrawable_nIsRunning },
-    { "nStart",              "(J)V",                                                         (void*) AnimatedImageDrawable_nStart },
+    { "nStart",              "(J)Z",                                                         (void*) AnimatedImageDrawable_nStart },
     { "nStop",               "(J)V",                                                         (void*) AnimatedImageDrawable_nStop },
     { "nNativeByteSize",     "(J)J",                                                         (void*) AnimatedImageDrawable_nNativeByteSize },
 };
diff --git a/core/jni/android/graphics/FontFamily.cpp b/core/jni/android/graphics/FontFamily.cpp
index dd3e6f0..c50026e 100644
--- a/core/jni/android/graphics/FontFamily.cpp
+++ b/core/jni/android/graphics/FontFamily.cpp
@@ -28,7 +28,7 @@
 #include <nativehelper/ScopedUtfChars.h>
 #include <android_runtime/AndroidRuntime.h>
 #include <android_runtime/android_util_AssetManager.h>
-#include <androidfw/AssetManager.h>
+#include <androidfw/AssetManager2.h>
 #include "Utils.h"
 #include "FontUtils.h"
 
@@ -224,7 +224,8 @@
     NPE_CHECK_RETURN_ZERO(env, jpath);
 
     NativeFamilyBuilder* builder = reinterpret_cast<NativeFamilyBuilder*>(builderPtr);
-    AssetManager* mgr = assetManagerForJavaObject(env, jassetMgr);
+
+    Guarded<AssetManager2>* mgr = AssetManagerForJavaObject(env, jassetMgr);
     if (NULL == mgr) {
         builder->axes.clear();
         return false;
@@ -236,27 +237,33 @@
         return false;
     }
 
-    Asset* asset;
-    if (isAsset) {
-        asset = mgr->open(str.c_str(), Asset::ACCESS_BUFFER);
-    } else {
-        asset = cookie ? mgr->openNonAsset(static_cast<int32_t>(cookie), str.c_str(),
-                Asset::ACCESS_BUFFER) : mgr->openNonAsset(str.c_str(), Asset::ACCESS_BUFFER);
+    std::unique_ptr<Asset> asset;
+    {
+      ScopedLock<AssetManager2> locked_mgr(*mgr);
+      if (isAsset) {
+          asset = locked_mgr->Open(str.c_str(), Asset::ACCESS_BUFFER);
+      } else if (cookie > 0) {
+          // Valid java cookies are 1-based, but AssetManager cookies are 0-based.
+          asset = locked_mgr->OpenNonAsset(str.c_str(), static_cast<ApkAssetsCookie>(cookie - 1),
+                  Asset::ACCESS_BUFFER);
+      } else {
+          asset = locked_mgr->OpenNonAsset(str.c_str(), Asset::ACCESS_BUFFER);
+      }
     }
 
-    if (NULL == asset) {
+    if (nullptr == asset) {
         builder->axes.clear();
         return false;
     }
 
     const void* buf = asset->getBuffer(false);
     if (NULL == buf) {
-        delete asset;
         builder->axes.clear();
         return false;
     }
 
-    sk_sp<SkData> data(SkData::MakeWithProc(buf, asset->getLength(), releaseAsset, asset));
+    sk_sp<SkData> data(SkData::MakeWithProc(buf, asset->getLength(), releaseAsset,
+            asset.release()));
     return addSkTypeface(builder, std::move(data), ttcIndex, weight, isItalic);
 }
 
diff --git a/core/jni/android/graphics/Paint.cpp b/core/jni/android/graphics/Paint.cpp
index 1e7f5f5..49cbb54 100644
--- a/core/jni/android/graphics/Paint.cpp
+++ b/core/jni/android/graphics/Paint.cpp
@@ -307,7 +307,8 @@
     static void getTextPath(JNIEnv* env, Paint* paint, const Typeface* typeface, const jchar* text,
             jint count, jint bidiFlags, jfloat x, jfloat y, SkPath* path) {
         minikin::Layout layout = MinikinUtils::doLayout(
-                paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text, 0, count, count);
+                paint, static_cast<minikin::Bidi>(bidiFlags), typeface, text, 0, count, count,
+                nullptr, 0);
         size_t nGlyphs = layout.nGlyphs();
         uint16_t* glyphs = new uint16_t[nGlyphs];
         SkPoint* pos = new SkPoint[nGlyphs];
@@ -349,7 +350,8 @@
         SkIRect ir;
 
         minikin::Layout layout = MinikinUtils::doLayout(&paint,
-                static_cast<minikin::Bidi>(bidiFlags), typeface, text, 0, count, count);
+                static_cast<minikin::Bidi>(bidiFlags), typeface, text, 0, count, count, nullptr,
+                0);
         minikin::MinikinRect rect;
         layout.getBounds(&rect);
         r.fLeft = rect.mLeft;
@@ -465,7 +467,7 @@
         }
         minikin::Layout layout = MinikinUtils::doLayout(paint,
                 static_cast<minikin::Bidi>(bidiFlags), typeface, str.get(), 0, str.size(),
-                str.size());
+                str.size(), nullptr, 0);
         size_t nGlyphs = countNonSpaceGlyphs(layout);
         if (nGlyphs != 1 && nChars > 1) {
             // multiple-character input, and was not a ligature
@@ -485,7 +487,8 @@
             // U+1F1FF (REGIONAL INDICATOR SYMBOL LETTER Z) is \uD83C\uDDFF in UTF16.
             static const jchar ZZ_FLAG_STR[] = { 0xD83C, 0xDDFF, 0xD83C, 0xDDFF };
             minikin::Layout zzLayout = MinikinUtils::doLayout(paint,
-                    static_cast<minikin::Bidi>(bidiFlags), typeface, ZZ_FLAG_STR, 0, 4, 4);
+                    static_cast<minikin::Bidi>(bidiFlags), typeface, ZZ_FLAG_STR, 0, 4, 4,
+                    nullptr, 0);
             if (zzLayout.nGlyphs() != 1 || layoutContainsNotdef(zzLayout)) {
                 // The font collection doesn't have a glyph for unknown flag. Just return true.
                 return true;
diff --git a/core/jni/android_app_NativeActivity.cpp b/core/jni/android_app_NativeActivity.cpp
index 09e37e1..49a24a3 100644
--- a/core/jni/android_app_NativeActivity.cpp
+++ b/core/jni/android_app_NativeActivity.cpp
@@ -361,7 +361,7 @@
     code->sdkVersion = sdkVersion;
 
     code->javaAssetManager = env->NewGlobalRef(jAssetMgr);
-    code->assetManager = assetManagerForJavaObject(env, jAssetMgr);
+    code->assetManager = NdkAssetManagerForJavaObject(env, jAssetMgr);
 
     if (obbDir != NULL) {
         dirStr = env->GetStringUTFChars(obbDir, NULL);
diff --git a/core/jni/android_content_res_ApkAssets.cpp b/core/jni/android_content_res_ApkAssets.cpp
new file mode 100644
index 0000000..c0f151b
--- /dev/null
+++ b/core/jni/android_content_res_ApkAssets.cpp
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "android-base/macros.h"
+#include "android-base/stringprintf.h"
+#include "android-base/unique_fd.h"
+#include "androidfw/ApkAssets.h"
+#include "utils/misc.h"
+
+#include "core_jni_helpers.h"
+#include "jni.h"
+#include "nativehelper/ScopedUtfChars.h"
+
+using ::android::base::unique_fd;
+
+namespace android {
+
+static jlong NativeLoad(JNIEnv* env, jclass /*clazz*/, jstring java_path, jboolean system,
+                        jboolean force_shared_lib, jboolean overlay) {
+  ScopedUtfChars path(env, java_path);
+  if (path.c_str() == nullptr) {
+    return 0;
+  }
+
+  std::unique_ptr<const ApkAssets> apk_assets;
+  if (overlay) {
+    apk_assets = ApkAssets::LoadOverlay(path.c_str(), system);
+  } else if (force_shared_lib) {
+    apk_assets = ApkAssets::LoadAsSharedLibrary(path.c_str(), system);
+  } else {
+    apk_assets = ApkAssets::Load(path.c_str(), system);
+  }
+
+  if (apk_assets == nullptr) {
+    std::string error_msg = base::StringPrintf("Failed to load asset path %s", path.c_str());
+    jniThrowException(env, "java/io/IOException", error_msg.c_str());
+    return 0;
+  }
+  return reinterpret_cast<jlong>(apk_assets.release());
+}
+
+static jlong NativeLoadFromFd(JNIEnv* env, jclass /*clazz*/, jobject file_descriptor,
+                              jstring friendly_name, jboolean system, jboolean force_shared_lib) {
+  ScopedUtfChars friendly_name_utf8(env, friendly_name);
+  if (friendly_name_utf8.c_str() == nullptr) {
+    return 0;
+  }
+
+  int fd = jniGetFDFromFileDescriptor(env, file_descriptor);
+  if (fd < 0) {
+    jniThrowException(env, "java/lang/IllegalArgumentException", "Bad FileDescriptor");
+    return 0;
+  }
+
+  unique_fd dup_fd(::dup(fd));
+  if (dup_fd < 0) {
+    jniThrowIOException(env, errno);
+    return 0;
+  }
+
+  std::unique_ptr<const ApkAssets> apk_assets = ApkAssets::LoadFromFd(std::move(dup_fd),
+                                                                      friendly_name_utf8.c_str(),
+                                                                      system, force_shared_lib);
+  if (apk_assets == nullptr) {
+    std::string error_msg = base::StringPrintf("Failed to load asset path %s from fd %d",
+                                               friendly_name_utf8.c_str(), dup_fd.get());
+    jniThrowException(env, "java/io/IOException", error_msg.c_str());
+    return 0;
+  }
+  return reinterpret_cast<jlong>(apk_assets.release());
+}
+
+static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
+  delete reinterpret_cast<ApkAssets*>(ptr);
+}
+
+static jstring NativeGetAssetPath(JNIEnv* env, jclass /*clazz*/, jlong ptr) {
+  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);
+  return env->NewStringUTF(apk_assets->GetPath().c_str());
+}
+
+static jlong NativeGetStringBlock(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
+  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);
+  return reinterpret_cast<jlong>(apk_assets->GetLoadedArsc()->GetStringPool());
+}
+
+static jboolean NativeIsUpToDate(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
+  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);
+  (void)apk_assets;
+  return JNI_TRUE;
+}
+
+static jlong NativeOpenXml(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring file_name) {
+  ScopedUtfChars path_utf8(env, file_name);
+  if (path_utf8.c_str() == nullptr) {
+    return 0;
+  }
+
+  const ApkAssets* apk_assets = reinterpret_cast<const ApkAssets*>(ptr);
+  std::unique_ptr<Asset> asset = apk_assets->Open(path_utf8.c_str(),
+                                                  Asset::AccessMode::ACCESS_RANDOM);
+  if (asset == nullptr) {
+    jniThrowException(env, "java/io/FileNotFoundException", path_utf8.c_str());
+    return 0;
+  }
+
+  // DynamicRefTable is only needed when looking up resource references. Opening an XML file
+  // directly from an ApkAssets has no notion of proper resource references.
+  std::unique_ptr<ResXMLTree> xml_tree = util::make_unique<ResXMLTree>(nullptr /*dynamicRefTable*/);
+  status_t err = xml_tree->setTo(asset->getBuffer(true), asset->getLength(), true);
+  asset.reset();
+
+  if (err != NO_ERROR) {
+    jniThrowException(env, "java/io/FileNotFoundException", "Corrupt XML binary file");
+    return 0;
+  }
+  return reinterpret_cast<jlong>(xml_tree.release());
+}
+
+// JNI registration.
+static const JNINativeMethod gApkAssetsMethods[] = {
+    {"nativeLoad", "(Ljava/lang/String;ZZZ)J", (void*)NativeLoad},
+    {"nativeLoadFromFd", "(Ljava/io/FileDescriptor;Ljava/lang/String;ZZ)J",
+        (void*)NativeLoadFromFd},
+    {"nativeDestroy", "(J)V", (void*)NativeDestroy},
+    {"nativeGetAssetPath", "(J)Ljava/lang/String;", (void*)NativeGetAssetPath},
+    {"nativeGetStringBlock", "(J)J", (void*)NativeGetStringBlock},
+    {"nativeIsUpToDate", "(J)Z", (void*)NativeIsUpToDate},
+    {"nativeOpenXml", "(JLjava/lang/String;)J", (void*)NativeOpenXml},
+};
+
+int register_android_content_res_ApkAssets(JNIEnv* env) {
+  return RegisterMethodsOrDie(env, "android/content/res/ApkAssets", gApkAssetsMethods,
+                              arraysize(gApkAssetsMethods));
+}
+
+}  // namespace android
diff --git a/core/jni/android_graphics_Canvas.cpp b/core/jni/android_graphics_Canvas.cpp
index f08b89c..6b961f5 100644
--- a/core/jni/android_graphics_Canvas.cpp
+++ b/core/jni/android_graphics_Canvas.cpp
@@ -30,6 +30,10 @@
 #include "SkRegion.h"
 #include "SkVertices.h"
 
+namespace minikin {
+class MeasuredText;
+}  // namespace minikin
+
 namespace android {
 
 namespace CanvasJNI {
@@ -480,7 +484,7 @@
     const Typeface* typeface = paint->getAndroidTypeface();
     jchar* jchars = env->GetCharArrayElements(text, NULL);
     get_canvas(canvasHandle)->drawText(jchars + index, 0, count, count, x, y,
-            static_cast<minikin::Bidi>(bidiFlags), *paint, typeface);
+            static_cast<minikin::Bidi>(bidiFlags), *paint, typeface, nullptr, 0);
     env->ReleaseCharArrayElements(text, jchars, JNI_ABORT);
 }
 
@@ -492,20 +496,22 @@
     const int count = end - start;
     const jchar* jchars = env->GetStringChars(text, NULL);
     get_canvas(canvasHandle)->drawText(jchars + start, 0, count, count, x, y,
-            static_cast<minikin::Bidi>(bidiFlags), *paint, typeface);
+            static_cast<minikin::Bidi>(bidiFlags), *paint, typeface, nullptr, 0);
     env->ReleaseStringChars(text, jchars);
 }
 
 static void drawTextRunChars(JNIEnv* env, jobject, jlong canvasHandle, jcharArray text, jint index,
                              jint count, jint contextIndex, jint contextCount, jfloat x, jfloat y,
-                             jboolean isRtl, jlong paintHandle) {
+                             jboolean isRtl, jlong paintHandle, jlong mtHandle, jint mtOffset) {
     Paint* paint = reinterpret_cast<Paint*>(paintHandle);
+    minikin::MeasuredText* mt = reinterpret_cast<minikin::MeasuredText*>(mtHandle);
     const Typeface* typeface = paint->getAndroidTypeface();
 
     const minikin::Bidi bidiFlags = isRtl ? minikin::Bidi::FORCE_RTL : minikin::Bidi::FORCE_LTR;
     jchar* jchars = env->GetCharArrayElements(text, NULL);
     get_canvas(canvasHandle)->drawText(jchars + contextIndex, index - contextIndex, count,
-                                       contextCount, x, y, bidiFlags, *paint, typeface);
+                                       contextCount, x, y, bidiFlags, *paint, typeface, mt,
+                                       mtOffset);
     env->ReleaseCharArrayElements(text, jchars, JNI_ABORT);
 }
 
@@ -520,7 +526,7 @@
     jint contextCount = contextEnd - contextStart;
     const jchar* jchars = env->GetStringChars(text, NULL);
     get_canvas(canvasHandle)->drawText(jchars + contextStart, start - contextStart, count,
-                                       contextCount, x, y, bidiFlags, *paint, typeface);
+                                       contextCount, x, y, bidiFlags, *paint, typeface, nullptr, 0);
     env->ReleaseStringChars(text, jchars);
 }
 
@@ -628,7 +634,7 @@
     {"nDrawBitmap", "(J[IIIFFIIZJ)V", (void*)CanvasJNI::drawBitmapArray},
     {"nDrawText","(J[CIIFFIJ)V", (void*) CanvasJNI::drawTextChars},
     {"nDrawText","(JLjava/lang/String;IIFFIJ)V", (void*) CanvasJNI::drawTextString},
-    {"nDrawTextRun","(J[CIIIIFFZJ)V", (void*) CanvasJNI::drawTextRunChars},
+    {"nDrawTextRun","(J[CIIIIFFZJJI)V", (void*) CanvasJNI::drawTextRunChars},
     {"nDrawTextRun","(JLjava/lang/String;IIIIFFZJ)V", (void*) CanvasJNI::drawTextRunString},
     {"nDrawTextOnPath","(J[CIIJFFIJ)V", (void*) CanvasJNI::drawTextOnPathChars},
     {"nDrawTextOnPath","(JLjava/lang/String;JFFIJ)V", (void*) CanvasJNI::drawTextOnPathString},
diff --git a/core/jni/android_media_AudioRecord.cpp b/core/jni/android_media_AudioRecord.cpp
index e4da3c6..ebd16c7 100644
--- a/core/jni/android_media_AudioRecord.cpp
+++ b/core/jni/android_media_AudioRecord.cpp
@@ -31,6 +31,7 @@
 #include "android_media_AudioFormat.h"
 #include "android_media_AudioErrors.h"
 #include "android_media_DeviceCallback.h"
+#include "android_media_MediaMetricsJNI.h"
 
 // ----------------------------------------------------------------------------
 
@@ -751,6 +752,39 @@
 }
 
 // ----------------------------------------------------------------------------
+static jobject
+android_media_AudioRecord_native_getMetrics(JNIEnv *env, jobject thiz)
+{
+    ALOGV("android_media_AudioRecord_native_getMetrics");
+
+    sp<AudioRecord> lpRecord = getAudioRecord(env, thiz);
+
+    if (lpRecord == NULL) {
+        ALOGE("Unable to retrieve AudioRecord pointer for getMetrics()");
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return (jobject) NULL;
+    }
+
+    // get what we have for the metrics from the record session
+    MediaAnalyticsItem *item = NULL;
+
+    status_t err = lpRecord->getMetrics(item);
+    if (err != OK) {
+        ALOGE("getMetrics failed");
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return (jobject) NULL;
+    }
+
+    jobject mybundle = MediaMetricsJNI::writeMetricsToBundle(env, item, NULL /* mybundle */);
+
+    // housekeeping
+    delete item;
+    item = NULL;
+
+    return mybundle;
+}
+
+// ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 static const JNINativeMethod gMethods[] = {
     // name,               signature,  funcPtr
@@ -781,6 +815,8 @@
                              "()I",    (void *)android_media_AudioRecord_get_pos_update_period},
     {"native_get_min_buff_size",
                              "(III)I",   (void *)android_media_AudioRecord_get_min_buff_size},
+    {"native_getMetrics",    "()Landroid/os/PersistableBundle;",
+                                         (void *)android_media_AudioRecord_native_getMetrics},
     {"native_setInputDevice", "(I)Z", (void *)android_media_AudioRecord_setInputDevice},
     {"native_getRoutedDeviceId", "()I", (void *)android_media_AudioRecord_getRoutedDeviceId},
     {"native_enableDeviceCallback", "()V", (void *)android_media_AudioRecord_enableDeviceCallback},
diff --git a/core/jni/android_media_AudioSystem.cpp b/core/jni/android_media_AudioSystem.cpp
index 2be9471..376a797 100644
--- a/core/jni/android_media_AudioSystem.cpp
+++ b/core/jni/android_media_AudioSystem.cpp
@@ -608,9 +608,10 @@
 }
 
 static jint
-android_media_AudioSystem_setLowRamDevice(JNIEnv *env, jobject clazz, jboolean isLowRamDevice)
+android_media_AudioSystem_setLowRamDevice(
+        JNIEnv *env, jobject clazz, jboolean isLowRamDevice, jlong totalMemory)
 {
-    return (jint) AudioSystem::setLowRamDevice((bool) isLowRamDevice);
+    return (jint) AudioSystem::setLowRamDevice((bool) isLowRamDevice, (int64_t) totalMemory);
 }
 
 static jint
@@ -1819,7 +1820,7 @@
     {"getPrimaryOutputSamplingRate", "()I", (void *)android_media_AudioSystem_getPrimaryOutputSamplingRate},
     {"getPrimaryOutputFrameCount",   "()I", (void *)android_media_AudioSystem_getPrimaryOutputFrameCount},
     {"getOutputLatency",    "(I)I",     (void *)android_media_AudioSystem_getOutputLatency},
-    {"setLowRamDevice",     "(Z)I",     (void *)android_media_AudioSystem_setLowRamDevice},
+    {"setLowRamDevice",     "(ZJ)I",    (void *)android_media_AudioSystem_setLowRamDevice},
     {"checkAudioFlinger",    "()I",     (void *)android_media_AudioSystem_checkAudioFlinger},
     {"listAudioPorts",      "(Ljava/util/ArrayList;[I)I",
                                                 (void *)android_media_AudioSystem_listAudioPorts},
diff --git a/core/jni/android_media_AudioTrack.cpp b/core/jni/android_media_AudioTrack.cpp
index 11011b1..afbc579 100644
--- a/core/jni/android_media_AudioTrack.cpp
+++ b/core/jni/android_media_AudioTrack.cpp
@@ -34,6 +34,7 @@
 
 #include "android_media_AudioFormat.h"
 #include "android_media_AudioErrors.h"
+#include "android_media_MediaMetricsJNI.h"
 #include "android_media_PlaybackParams.h"
 #include "android_media_DeviceCallback.h"
 #include "android_media_VolumeShaper.h"
@@ -1011,6 +1012,39 @@
     return (jint) nativeToJavaStatus(status);
 }
 
+// ----------------------------------------------------------------------------
+static jobject
+android_media_AudioTrack_native_getMetrics(JNIEnv *env, jobject thiz)
+{
+    ALOGD("android_media_AudioTrack_native_getMetrics");
+
+    sp<AudioTrack> lpTrack = getAudioTrack(env, thiz);
+
+    if (lpTrack == NULL) {
+        ALOGE("Unable to retrieve AudioTrack pointer for getMetrics()");
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return (jobject) NULL;
+    }
+
+    // get what we have for the metrics from the track
+    MediaAnalyticsItem *item = NULL;
+
+    status_t err = lpTrack->getMetrics(item);
+    if (err != OK) {
+        ALOGE("getMetrics failed");
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return (jobject) NULL;
+    }
+
+    jobject mybundle = MediaMetricsJNI::writeMetricsToBundle(env, item, NULL /* mybundle */);
+
+    // housekeeping
+    delete item;
+    item = NULL;
+
+    return mybundle;
+}
+
 
 // ----------------------------------------------------------------------------
 static jint android_media_AudioTrack_set_loop(JNIEnv *env,  jobject thiz,
@@ -1275,6 +1309,8 @@
     {"native_get_underrun_count", "()I",      (void *)android_media_AudioTrack_get_underrun_count},
     {"native_get_flags",     "()I",      (void *)android_media_AudioTrack_get_flags},
     {"native_get_timestamp", "([J)I",    (void *)android_media_AudioTrack_get_timestamp},
+    {"native_getMetrics",    "()Landroid/os/PersistableBundle;",
+                                         (void *)android_media_AudioTrack_native_getMetrics},
     {"native_set_loop",      "(III)I",   (void *)android_media_AudioTrack_set_loop},
     {"native_reload_static", "()I",      (void *)android_media_AudioTrack_reload},
     {"native_get_output_sample_rate",
diff --git a/media/jni/android_media_MediaMetricsJNI.cpp b/core/jni/android_media_MediaMetricsJNI.cpp
similarity index 100%
rename from media/jni/android_media_MediaMetricsJNI.cpp
rename to core/jni/android_media_MediaMetricsJNI.cpp
diff --git a/media/jni/android_media_MediaMetricsJNI.h b/core/jni/android_media_MediaMetricsJNI.h
similarity index 100%
rename from media/jni/android_media_MediaMetricsJNI.h
rename to core/jni/android_media_MediaMetricsJNI.h
diff --git a/core/jni/android_text_MeasuredParagraph.cpp b/core/jni/android_text_MeasuredParagraph.cpp
index 58c05b4..f0e449d 100644
--- a/core/jni/android_text_MeasuredParagraph.cpp
+++ b/core/jni/android_text_MeasuredParagraph.cpp
@@ -85,12 +85,14 @@
 
 // Regular JNI
 static jlong nBuildNativeMeasuredParagraph(JNIEnv* env, jclass /* unused */, jlong builderPtr,
-                                      jcharArray javaText, jboolean computeHyphenation) {
+                                      jcharArray javaText, jboolean computeHyphenation,
+                                      jboolean computeLayout) {
     ScopedCharArrayRO text(env, javaText);
     const minikin::U16StringPiece textBuffer(text.get(), text.size());
 
     // Pass the ownership to Java.
-    return toJLong(toBuilder(builderPtr)->build(textBuffer, computeHyphenation).release());
+    return toJLong(toBuilder(builderPtr)->build(textBuffer, computeHyphenation,
+                                                computeLayout).release());
 }
 
 // Regular JNI
@@ -99,6 +101,16 @@
 }
 
 // CriticalNative
+static jfloat nGetWidth(jlong ptr, jint start, jint end) {
+    minikin::MeasuredText* mt = toMeasuredParagraph(ptr);
+    float r = 0.0f;
+    for (int i = start; i < end; ++i) {
+        r += mt->widths[i];
+    }
+    return r;
+}
+
+// CriticalNative
 static jlong nGetReleaseFunc() {
     return toJLong(&releaseMeasuredParagraph);
 }
@@ -108,10 +120,11 @@
     {"nInitBuilder", "()J", (void*) nInitBuilder},
     {"nAddStyleRun", "(JJIIZ)V", (void*) nAddStyleRun},
     {"nAddReplacementRun", "(JJIIF)V", (void*) nAddReplacementRun},
-    {"nBuildNativeMeasuredParagraph", "(J[CZ)J", (void*) nBuildNativeMeasuredParagraph},
+    {"nBuildNativeMeasuredParagraph", "(J[CZZ)J", (void*) nBuildNativeMeasuredParagraph},
     {"nFreeBuilder", "(J)V", (void*) nFreeBuilder},
 
     // MeasuredParagraph native functions.
+    {"nGetWidth", "(JII)F", (void*) nGetWidth},  // Critical Natives
     {"nGetReleaseFunc", "()J", (void*) nGetReleaseFunc},  // Critical Natives
 };
 
diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
index c6828c4..403937b 100644
--- a/core/jni/android_util_AssetManager.cpp
+++ b/core/jni/android_util_AssetManager.cpp
@@ -1,1846 +1,1437 @@
-/* //device/libs/android_runtime/android_util_AssetManager.cpp
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
+/*
+ * Copyright 2006, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 #define LOG_TAG "asset"
 
-#include <android_runtime/android_util_AssetManager.h>
-
 #include <inttypes.h>
 #include <linux/capability.h>
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/wait.h>
 #include <sys/stat.h>
 #include <sys/system_properties.h>
+#include <sys/types.h>
+#include <sys/wait.h>
 
 #include <private/android_filesystem_config.h> // for AID_SYSTEM
 
-#include "androidfw/Asset.h"
-#include "androidfw/AssetManager.h"
-#include "androidfw/AttributeResolution.h"
-#include "androidfw/ResourceTypes.h"
+#include "android-base/logging.h"
+#include "android-base/properties.h"
+#include "android-base/stringprintf.h"
+#include "android_runtime/android_util_AssetManager.h"
 #include "android_runtime/AndroidRuntime.h"
 #include "android_util_Binder.h"
+#include "androidfw/Asset.h"
+#include "androidfw/AssetManager.h"
+#include "androidfw/AssetManager2.h"
+#include "androidfw/AttributeResolution.h"
+#include "androidfw/MutexGuard.h"
+#include "androidfw/ResourceTypes.h"
 #include "core_jni_helpers.h"
 #include "jni.h"
-#include <nativehelper/JNIHelp.h>
-#include <nativehelper/ScopedStringChars.h>
-#include <nativehelper/ScopedUtfChars.h>
+#include "nativehelper/JNIHelp.h"
+#include "nativehelper/ScopedPrimitiveArray.h"
+#include "nativehelper/ScopedStringChars.h"
+#include "nativehelper/ScopedUtfChars.h"
 #include "utils/Log.h"
-#include "utils/misc.h"
 #include "utils/String8.h"
+#include "utils/misc.h"
 
 extern "C" int capget(cap_user_header_t hdrp, cap_user_data_t datap);
 extern "C" int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
 
+using ::android::base::StringPrintf;
 
 namespace android {
 
-static const bool kThrowOnBadId = false;
-
 // ----------------------------------------------------------------------------
 
-static struct typedvalue_offsets_t
-{
-    jfieldID mType;
-    jfieldID mData;
-    jfieldID mString;
-    jfieldID mAssetCookie;
-    jfieldID mResourceId;
-    jfieldID mChangingConfigurations;
-    jfieldID mDensity;
+static struct typedvalue_offsets_t {
+  jfieldID mType;
+  jfieldID mData;
+  jfieldID mString;
+  jfieldID mAssetCookie;
+  jfieldID mResourceId;
+  jfieldID mChangingConfigurations;
+  jfieldID mDensity;
 } gTypedValueOffsets;
 
-static struct assetfiledescriptor_offsets_t
-{
-    jfieldID mFd;
-    jfieldID mStartOffset;
-    jfieldID mLength;
+static struct assetfiledescriptor_offsets_t {
+  jfieldID mFd;
+  jfieldID mStartOffset;
+  jfieldID mLength;
 } gAssetFileDescriptorOffsets;
 
-static struct assetmanager_offsets_t
-{
-    jfieldID mObject;
+static struct assetmanager_offsets_t {
+  jfieldID mObject;
 } gAssetManagerOffsets;
 
-static struct sparsearray_offsets_t
-{
-    jclass classObject;
-    jmethodID constructor;
-    jmethodID put;
+static struct {
+  jfieldID native_ptr;
+} gApkAssetsFields;
+
+static struct sparsearray_offsets_t {
+  jclass classObject;
+  jmethodID constructor;
+  jmethodID put;
 } gSparseArrayOffsets;
 
-static struct configuration_offsets_t
-{
-    jclass classObject;
-    jmethodID constructor;
-    jfieldID mSmallestScreenWidthDpOffset;
-    jfieldID mScreenWidthDpOffset;
-    jfieldID mScreenHeightDpOffset;
+static struct configuration_offsets_t {
+  jclass classObject;
+  jmethodID constructor;
+  jfieldID mSmallestScreenWidthDpOffset;
+  jfieldID mScreenWidthDpOffset;
+  jfieldID mScreenHeightDpOffset;
 } gConfigurationOffsets;
 
-jclass g_stringClass = NULL;
+jclass g_stringClass = nullptr;
 
 // ----------------------------------------------------------------------------
 
-static jint copyValue(JNIEnv* env, jobject outValue, const ResTable* table,
-                      const Res_value& value, uint32_t ref, ssize_t block,
-                      uint32_t typeSpecFlags, ResTable_config* config = NULL);
+// Java asset cookies have 0 as an invalid cookie, but TypedArray expects < 0.
+constexpr inline static jint ApkAssetsCookieToJavaCookie(ApkAssetsCookie cookie) {
+  return cookie != kInvalidCookie ? static_cast<jint>(cookie + 1) : -1;
+}
 
-jint copyValue(JNIEnv* env, jobject outValue, const ResTable* table,
-               const Res_value& value, uint32_t ref, ssize_t block,
-               uint32_t typeSpecFlags, ResTable_config* config)
-{
-    env->SetIntField(outValue, gTypedValueOffsets.mType, value.dataType);
-    env->SetIntField(outValue, gTypedValueOffsets.mAssetCookie,
-                     static_cast<jint>(table->getTableCookie(block)));
-    env->SetIntField(outValue, gTypedValueOffsets.mData, value.data);
-    env->SetObjectField(outValue, gTypedValueOffsets.mString, NULL);
-    env->SetIntField(outValue, gTypedValueOffsets.mResourceId, ref);
-    env->SetIntField(outValue, gTypedValueOffsets.mChangingConfigurations,
-            typeSpecFlags);
-    if (config != NULL) {
-        env->SetIntField(outValue, gTypedValueOffsets.mDensity, config->density);
-    }
-    return block;
+constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie) {
+  return cookie > 0 ? static_cast<ApkAssetsCookie>(cookie - 1) : kInvalidCookie;
 }
 
 // This is called by zygote (running as user root) as part of preloadResources.
-static void verifySystemIdmaps()
-{
-    pid_t pid;
-    char system_id[10];
+static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
+  switch (pid_t pid = fork()) {
+    case -1:
+      PLOG(ERROR) << "failed to fork for idmap";
+      break;
 
-    snprintf(system_id, sizeof(system_id), "%d", AID_SYSTEM);
+    // child
+    case 0: {
+      struct __user_cap_header_struct capheader;
+      struct __user_cap_data_struct capdata;
 
-    switch (pid = fork()) {
-        case -1:
-            ALOGE("failed to fork for idmap: %s", strerror(errno));
-            break;
-        case 0: // child
-            {
-                struct __user_cap_header_struct capheader;
-                struct __user_cap_data_struct capdata;
+      memset(&capheader, 0, sizeof(capheader));
+      memset(&capdata, 0, sizeof(capdata));
 
-                memset(&capheader, 0, sizeof(capheader));
-                memset(&capdata, 0, sizeof(capdata));
+      capheader.version = _LINUX_CAPABILITY_VERSION;
+      capheader.pid = 0;
 
-                capheader.version = _LINUX_CAPABILITY_VERSION;
-                capheader.pid = 0;
+      if (capget(&capheader, &capdata) != 0) {
+        PLOG(ERROR) << "capget";
+        exit(1);
+      }
 
-                if (capget(&capheader, &capdata) != 0) {
-                    ALOGE("capget: %s\n", strerror(errno));
-                    exit(1);
-                }
+      capdata.effective = capdata.permitted;
+      if (capset(&capheader, &capdata) != 0) {
+        PLOG(ERROR) << "capset";
+        exit(1);
+      }
 
-                capdata.effective = capdata.permitted;
-                if (capset(&capheader, &capdata) != 0) {
-                    ALOGE("capset: %s\n", strerror(errno));
-                    exit(1);
-                }
+      if (setgid(AID_SYSTEM) != 0) {
+        PLOG(ERROR) << "setgid";
+        exit(1);
+      }
 
-                if (setgid(AID_SYSTEM) != 0) {
-                    ALOGE("setgid: %s\n", strerror(errno));
-                    exit(1);
-                }
+      if (setuid(AID_SYSTEM) != 0) {
+        PLOG(ERROR) << "setuid";
+        exit(1);
+      }
 
-                if (setuid(AID_SYSTEM) != 0) {
-                    ALOGE("setuid: %s\n", strerror(errno));
-                    exit(1);
-                }
+      // Generic idmap parameters
+      const char* argv[8];
+      int argc = 0;
+      struct stat st;
 
-                // Generic idmap parameters
-                const char* argv[8];
-                int argc = 0;
-                struct stat st;
+      memset(argv, 0, sizeof(argv));
+      argv[argc++] = AssetManager::IDMAP_BIN;
+      argv[argc++] = "--scan";
+      argv[argc++] = AssetManager::TARGET_PACKAGE_NAME;
+      argv[argc++] = AssetManager::TARGET_APK_PATH;
+      argv[argc++] = AssetManager::IDMAP_DIR;
 
-                memset(argv, NULL, sizeof(argv));
-                argv[argc++] = AssetManager::IDMAP_BIN;
-                argv[argc++] = "--scan";
-                argv[argc++] = AssetManager::TARGET_PACKAGE_NAME;
-                argv[argc++] = AssetManager::TARGET_APK_PATH;
-                argv[argc++] = AssetManager::IDMAP_DIR;
+      // Directories to scan for overlays: if OVERLAY_THEME_DIR_PROPERTY is defined,
+      // use OVERLAY_DIR/<value of OVERLAY_THEME_DIR_PROPERTY> in addition to OVERLAY_DIR.
+      std::string overlay_theme_path = base::GetProperty(AssetManager::OVERLAY_THEME_DIR_PROPERTY,
+                                                         "");
+      if (!overlay_theme_path.empty()) {
+        overlay_theme_path = std::string(AssetManager::OVERLAY_DIR) + "/" + overlay_theme_path;
+        if (stat(overlay_theme_path.c_str(), &st) == 0) {
+          argv[argc++] = overlay_theme_path.c_str();
+        }
+      }
 
-                // Directories to scan for overlays: if OVERLAY_THEME_DIR_PROPERTY is defined,
-                // use OVERLAY_DIR/<value of OVERLAY_THEME_DIR_PROPERTY> in addition to OVERLAY_DIR.
-                char subdir[PROP_VALUE_MAX];
-                int len = __system_property_get(AssetManager::OVERLAY_THEME_DIR_PROPERTY, subdir);
-                if (len > 0) {
-                    String8 overlayPath = String8(AssetManager::OVERLAY_DIR) + "/" + subdir;
-                    if (stat(overlayPath.string(), &st) == 0) {
-                        argv[argc++] = overlayPath.string();
-                    }
-                }
-                if (stat(AssetManager::OVERLAY_DIR, &st) == 0) {
-                    argv[argc++] = AssetManager::OVERLAY_DIR;
-                }
+      if (stat(AssetManager::OVERLAY_DIR, &st) == 0) {
+          argv[argc++] = AssetManager::OVERLAY_DIR;
+      }
 
-                // Finally, invoke idmap (if any overlay directory exists)
-                if (argc > 5) {
-                    execv(AssetManager::IDMAP_BIN, (char* const*)argv);
-                    ALOGE("failed to execv for idmap: %s", strerror(errno));
-                    exit(1); // should never get here
-                } else {
-                    exit(0);
-                }
-            }
-            break;
-        default: // parent
-            waitpid(pid, NULL, 0);
-            break;
-    }
+      // Finally, invoke idmap (if any overlay directory exists)
+      if (argc > 5) {
+        execv(AssetManager::IDMAP_BIN, (char* const*)argv);
+        PLOG(ERROR) << "failed to execv for idmap";
+        exit(1); // should never get here
+      } else {
+        exit(0);
+      }
+  } break;
+
+  // parent
+  default:
+    waitpid(pid, nullptr, 0);
+    break;
+  }
+}
+
+static jint CopyValue(JNIEnv* env, ApkAssetsCookie cookie, const Res_value& value, uint32_t ref,
+                      uint32_t type_spec_flags, ResTable_config* config, jobject out_typed_value) {
+  env->SetIntField(out_typed_value, gTypedValueOffsets.mType, value.dataType);
+  env->SetIntField(out_typed_value, gTypedValueOffsets.mAssetCookie,
+                   ApkAssetsCookieToJavaCookie(cookie));
+  env->SetIntField(out_typed_value, gTypedValueOffsets.mData, value.data);
+  env->SetObjectField(out_typed_value, gTypedValueOffsets.mString, nullptr);
+  env->SetIntField(out_typed_value, gTypedValueOffsets.mResourceId, ref);
+  env->SetIntField(out_typed_value, gTypedValueOffsets.mChangingConfigurations, type_spec_flags);
+  if (config != nullptr) {
+    env->SetIntField(out_typed_value, gTypedValueOffsets.mDensity, config->density);
+  }
+  return static_cast<jint>(ApkAssetsCookieToJavaCookie(cookie));
 }
 
 // ----------------------------------------------------------------------------
 
-// this guy is exported to other jni routines
-AssetManager* assetManagerForJavaObject(JNIEnv* env, jobject obj)
-{
-    jlong amHandle = env->GetLongField(obj, gAssetManagerOffsets.mObject);
-    AssetManager* am = reinterpret_cast<AssetManager*>(amHandle);
-    if (am != NULL) {
-        return am;
-    }
-    jniThrowException(env, "java/lang/IllegalStateException", "AssetManager has been finalized!");
-    return NULL;
-}
-
-static jlong android_content_AssetManager_openAsset(JNIEnv* env, jobject clazz,
-                                                jstring fileName, jint mode)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    ALOGV("openAsset in %p (Java object %p)\n", am, clazz);
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        jniThrowException(env, "java/lang/IllegalArgumentException", "Empty file name");
-        return -1;
-    }
-
-    if (mode != Asset::ACCESS_UNKNOWN && mode != Asset::ACCESS_RANDOM
-        && mode != Asset::ACCESS_STREAMING && mode != Asset::ACCESS_BUFFER) {
-        jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
-        return -1;
-    }
-
-    Asset* a = am->open(fileName8.c_str(), (Asset::AccessMode)mode);
-
-    if (a == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return -1;
-    }
-
-    //printf("Created Asset Stream: %p\n", a);
-
-    return reinterpret_cast<jlong>(a);
-}
-
-static jobject returnParcelFileDescriptor(JNIEnv* env, Asset* a, jlongArray outOffsets)
-{
-    off64_t startOffset, length;
-    int fd = a->openFileDescriptor(&startOffset, &length);
-    delete a;
-
-    if (fd < 0) {
-        jniThrowException(env, "java/io/FileNotFoundException",
-                "This file can not be opened as a file descriptor; it is probably compressed");
-        return NULL;
-    }
-
-    jlong* offsets = (jlong*)env->GetPrimitiveArrayCritical(outOffsets, 0);
-    if (offsets == NULL) {
-        close(fd);
-        return NULL;
-    }
-
-    offsets[0] = startOffset;
-    offsets[1] = length;
-
-    env->ReleasePrimitiveArrayCritical(outOffsets, offsets, 0);
-
-    jobject fileDesc = jniCreateFileDescriptor(env, fd);
-    if (fileDesc == NULL) {
-        close(fd);
-        return NULL;
-    }
-
-    return newParcelFileDescriptor(env, fileDesc);
-}
-
-static jobject android_content_AssetManager_openAssetFd(JNIEnv* env, jobject clazz,
-                                                jstring fileName, jlongArray outOffsets)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ALOGV("openAssetFd in %p (Java object %p)\n", am, clazz);
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        return NULL;
-    }
-
-    Asset* a = am->open(fileName8.c_str(), Asset::ACCESS_RANDOM);
-
-    if (a == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return NULL;
-    }
-
-    //printf("Created Asset Stream: %p\n", a);
-
-    return returnParcelFileDescriptor(env, a, outOffsets);
-}
-
-static jlong android_content_AssetManager_openNonAssetNative(JNIEnv* env, jobject clazz,
-                                                         jint cookie,
-                                                         jstring fileName,
-                                                         jint mode)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    ALOGV("openNonAssetNative in %p (Java object %p)\n", am, clazz);
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        return -1;
-    }
-
-    if (mode != Asset::ACCESS_UNKNOWN && mode != Asset::ACCESS_RANDOM
-        && mode != Asset::ACCESS_STREAMING && mode != Asset::ACCESS_BUFFER) {
-        jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
-        return -1;
-    }
-
-    Asset* a = cookie
-        ? am->openNonAsset(static_cast<int32_t>(cookie), fileName8.c_str(),
-                (Asset::AccessMode)mode)
-        : am->openNonAsset(fileName8.c_str(), (Asset::AccessMode)mode);
-
-    if (a == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return -1;
-    }
-
-    //printf("Created Asset Stream: %p\n", a);
-
-    return reinterpret_cast<jlong>(a);
-}
-
-static jobject android_content_AssetManager_openNonAssetFdNative(JNIEnv* env, jobject clazz,
-                                                         jint cookie,
-                                                         jstring fileName,
-                                                         jlongArray outOffsets)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ALOGV("openNonAssetFd in %p (Java object %p)\n", am, clazz);
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        return NULL;
-    }
-
-    Asset* a = cookie
-        ? am->openNonAsset(static_cast<int32_t>(cookie), fileName8.c_str(), Asset::ACCESS_RANDOM)
-        : am->openNonAsset(fileName8.c_str(), Asset::ACCESS_RANDOM);
-
-    if (a == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return NULL;
-    }
-
-    //printf("Created Asset Stream: %p\n", a);
-
-    return returnParcelFileDescriptor(env, a, outOffsets);
-}
-
-static jobjectArray android_content_AssetManager_list(JNIEnv* env, jobject clazz,
-                                                   jstring fileName)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        return NULL;
-    }
-
-    AssetDir* dir = am->openDir(fileName8.c_str());
-
-    if (dir == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return NULL;
-    }
-
-    size_t N = dir->getFileCount();
-
-    jobjectArray array = env->NewObjectArray(dir->getFileCount(),
-                                                g_stringClass, NULL);
-    if (array == NULL) {
-        delete dir;
-        return NULL;
-    }
-
-    for (size_t i=0; i<N; i++) {
-        const String8& name = dir->getFileName(i);
-        jstring str = env->NewStringUTF(name.string());
-        if (str == NULL) {
-            delete dir;
-            return NULL;
-        }
-        env->SetObjectArrayElement(array, i, str);
-        env->DeleteLocalRef(str);
-    }
-
-    delete dir;
-
-    return array;
-}
-
-static void android_content_AssetManager_destroyAsset(JNIEnv* env, jobject clazz,
-                                                      jlong assetHandle)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    //printf("Destroying Asset Stream: %p\n", a);
-
-    if (a == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return;
-    }
-
-    delete a;
-}
-
-static jint android_content_AssetManager_readAssetChar(JNIEnv* env, jobject clazz,
-                                                       jlong assetHandle)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    if (a == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return -1;
-    }
-
-    uint8_t b;
-    ssize_t res = a->read(&b, 1);
-    return res == 1 ? b : -1;
-}
-
-static jint android_content_AssetManager_readAsset(JNIEnv* env, jobject clazz,
-                                                jlong assetHandle, jbyteArray bArray,
-                                                jint off, jint len)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    if (a == NULL || bArray == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return -1;
-    }
-
-    if (len == 0) {
-        return 0;
-    }
-
-    jsize bLen = env->GetArrayLength(bArray);
-    if (off < 0 || off >= bLen || len < 0 || len > bLen || (off+len) > bLen) {
-        jniThrowException(env, "java/lang/IndexOutOfBoundsException", "");
-        return -1;
-    }
-
-    jbyte* b = env->GetByteArrayElements(bArray, NULL);
-    ssize_t res = a->read(b+off, len);
-    env->ReleaseByteArrayElements(bArray, b, 0);
-
-    if (res > 0) return static_cast<jint>(res);
-
-    if (res < 0) {
-        jniThrowException(env, "java/io/IOException", "");
-    }
-    return -1;
-}
-
-static jlong android_content_AssetManager_seekAsset(JNIEnv* env, jobject clazz,
-                                                 jlong assetHandle,
-                                                 jlong offset, jint whence)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    if (a == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return -1;
-    }
-
-    return a->seek(
-        offset, (whence > 0) ? SEEK_END : (whence < 0 ? SEEK_SET : SEEK_CUR));
-}
-
-static jlong android_content_AssetManager_getAssetLength(JNIEnv* env, jobject clazz,
-                                                      jlong assetHandle)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    if (a == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return -1;
-    }
-
-    return a->getLength();
-}
-
-static jlong android_content_AssetManager_getAssetRemainingLength(JNIEnv* env, jobject clazz,
-                                                               jlong assetHandle)
-{
-    Asset* a = reinterpret_cast<Asset*>(assetHandle);
-
-    if (a == NULL) {
-        jniThrowNullPointerException(env, "asset");
-        return -1;
-    }
-
-    return a->getRemainingLength();
-}
-
-static jint android_content_AssetManager_addAssetPath(JNIEnv* env, jobject clazz,
-                                                       jstring path, jboolean appAsLib)
-{
-    ScopedUtfChars path8(env, path);
-    if (path8.c_str() == NULL) {
-        return 0;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    int32_t cookie;
-    bool res = am->addAssetPath(String8(path8.c_str()), &cookie, appAsLib);
-
-    return (res) ? static_cast<jint>(cookie) : 0;
-}
-
-static jint android_content_AssetManager_addOverlayPath(JNIEnv* env, jobject clazz,
-                                                     jstring idmapPath)
-{
-    ScopedUtfChars idmapPath8(env, idmapPath);
-    if (idmapPath8.c_str() == NULL) {
-        return 0;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    int32_t cookie;
-    bool res = am->addOverlayPath(String8(idmapPath8.c_str()), &cookie);
-
-    return (res) ? (jint)cookie : 0;
-}
-
-static jint android_content_AssetManager_addAssetFd(JNIEnv* env, jobject clazz,
-                                                    jobject fileDescriptor, jstring debugPathName,
-                                                    jboolean appAsLib)
-{
-    ScopedUtfChars debugPathName8(env, debugPathName);
-
-    int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
-    if (fd < 0) {
-        jniThrowException(env, "java/lang/IllegalArgumentException", "Bad FileDescriptor");
-        return 0;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    int dupfd = ::dup(fd);
-    if (dupfd < 0) {
-        jniThrowIOException(env, errno);
-        return 0;
-    }
-
-    int32_t cookie;
-    bool res = am->addAssetFd(dupfd, String8(debugPathName8.c_str()), &cookie, appAsLib);
-
-    return (res) ? static_cast<jint>(cookie) : 0;
-}
-
-static jboolean android_content_AssetManager_isUpToDate(JNIEnv* env, jobject clazz)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return JNI_TRUE;
-    }
-    return am->isUpToDate() ? JNI_TRUE : JNI_FALSE;
-}
-
-static jobjectArray getLocales(JNIEnv* env, jobject clazz, bool includeSystemLocales)
-{
-    Vector<String8> locales;
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    am->getLocales(&locales, includeSystemLocales);
-
-    const int N = locales.size();
-
-    jobjectArray result = env->NewObjectArray(N, g_stringClass, NULL);
-    if (result == NULL) {
-        return NULL;
-    }
-
-    for (int i=0; i<N; i++) {
-        jstring str = env->NewStringUTF(locales[i].string());
-        if (str == NULL) {
-            return NULL;
-        }
-        env->SetObjectArrayElement(result, i, str);
-        env->DeleteLocalRef(str);
-    }
-
-    return result;
-}
-
-static jobjectArray android_content_AssetManager_getLocales(JNIEnv* env, jobject clazz)
-{
-    return getLocales(env, clazz, true /* include system locales */);
-}
-
-static jobjectArray android_content_AssetManager_getNonSystemLocales(JNIEnv* env, jobject clazz)
-{
-    return getLocales(env, clazz, false /* don't include system locales */);
-}
-
-static jobject constructConfigurationObject(JNIEnv* env, const ResTable_config& config) {
-    jobject result = env->NewObject(gConfigurationOffsets.classObject,
-            gConfigurationOffsets.constructor);
-    if (result == NULL) {
-        return NULL;
-    }
-
-    env->SetIntField(result, gConfigurationOffsets.mSmallestScreenWidthDpOffset,
-            config.smallestScreenWidthDp);
-    env->SetIntField(result, gConfigurationOffsets.mScreenWidthDpOffset, config.screenWidthDp);
-    env->SetIntField(result, gConfigurationOffsets.mScreenHeightDpOffset, config.screenHeightDp);
-
-    return result;
-}
-
-static jobjectArray getSizeConfigurationsInternal(JNIEnv* env,
-        const Vector<ResTable_config>& configs) {
-    const int N = configs.size();
-    jobjectArray result = env->NewObjectArray(N, gConfigurationOffsets.classObject, NULL);
-    if (result == NULL) {
-        return NULL;
-    }
-
-    for (int i=0; i<N; i++) {
-        jobject config = constructConfigurationObject(env, configs[i]);
-        if (config == NULL) {
-            env->DeleteLocalRef(result);
-            return NULL;
-        }
-
-        env->SetObjectArrayElement(result, i, config);
-        env->DeleteLocalRef(config);
-    }
-
-    return result;
-}
-
-static jobjectArray android_content_AssetManager_getSizeConfigurations(JNIEnv* env, jobject clazz) {
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    const ResTable& res(am->getResources());
-    Vector<ResTable_config> configs;
-    res.getConfigurations(&configs, false /* ignoreMipmap */, true /* ignoreAndroidPackage */);
-
-    return getSizeConfigurationsInternal(env, configs);
-}
-
-static void android_content_AssetManager_setConfiguration(JNIEnv* env, jobject clazz,
-                                                          jint mcc, jint mnc,
-                                                          jstring locale, jint orientation,
-                                                          jint touchscreen, jint density,
-                                                          jint keyboard, jint keyboardHidden,
-                                                          jint navigation,
-                                                          jint screenWidth, jint screenHeight,
-                                                          jint smallestScreenWidthDp,
-                                                          jint screenWidthDp, jint screenHeightDp,
-                                                          jint screenLayout, jint uiMode,
-                                                          jint colorMode, jint sdkVersion)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return;
-    }
-
-    ResTable_config config;
-    memset(&config, 0, sizeof(config));
-
-    const char* locale8 = locale != NULL ? env->GetStringUTFChars(locale, NULL) : NULL;
-
-    // Constants duplicated from Java class android.content.res.Configuration.
-    static const jint kScreenLayoutRoundMask = 0x300;
-    static const jint kScreenLayoutRoundShift = 8;
-
-    config.mcc = (uint16_t)mcc;
-    config.mnc = (uint16_t)mnc;
-    config.orientation = (uint8_t)orientation;
-    config.touchscreen = (uint8_t)touchscreen;
-    config.density = (uint16_t)density;
-    config.keyboard = (uint8_t)keyboard;
-    config.inputFlags = (uint8_t)keyboardHidden;
-    config.navigation = (uint8_t)navigation;
-    config.screenWidth = (uint16_t)screenWidth;
-    config.screenHeight = (uint16_t)screenHeight;
-    config.smallestScreenWidthDp = (uint16_t)smallestScreenWidthDp;
-    config.screenWidthDp = (uint16_t)screenWidthDp;
-    config.screenHeightDp = (uint16_t)screenHeightDp;
-    config.screenLayout = (uint8_t)screenLayout;
-    config.uiMode = (uint8_t)uiMode;
-    config.colorMode = (uint8_t)colorMode;
-    config.sdkVersion = (uint16_t)sdkVersion;
-    config.minorVersion = 0;
-
-    // In Java, we use a 32bit integer for screenLayout, while we only use an 8bit integer
-    // in C++. We must extract the round qualifier out of the Java screenLayout and put it
-    // into screenLayout2.
-    config.screenLayout2 =
-            (uint8_t)((screenLayout & kScreenLayoutRoundMask) >> kScreenLayoutRoundShift);
-
-    am->setConfiguration(config, locale8);
-
-    if (locale != NULL) env->ReleaseStringUTFChars(locale, locale8);
-}
-
-static jint android_content_AssetManager_getResourceIdentifier(JNIEnv* env, jobject clazz,
-                                                            jstring name,
-                                                            jstring defType,
-                                                            jstring defPackage)
-{
-    ScopedStringChars name16(env, name);
-    if (name16.get() == NULL) {
-        return 0;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    const char16_t* defType16 = reinterpret_cast<const char16_t*>(defType)
-        ? reinterpret_cast<const char16_t*>(env->GetStringChars(defType, NULL))
-        : NULL;
-    jsize defTypeLen = defType
-        ? env->GetStringLength(defType) : 0;
-    const char16_t* defPackage16 = reinterpret_cast<const char16_t*>(defPackage)
-        ? reinterpret_cast<const char16_t*>(env->GetStringChars(defPackage,
-                                                                NULL))
-        : NULL;
-    jsize defPackageLen = defPackage
-        ? env->GetStringLength(defPackage) : 0;
-
-    jint ident = am->getResources().identifierForName(
-        reinterpret_cast<const char16_t*>(name16.get()), name16.size(),
-        defType16, defTypeLen, defPackage16, defPackageLen);
-
-    if (defPackage16) {
-        env->ReleaseStringChars(defPackage,
-                                reinterpret_cast<const jchar*>(defPackage16));
-    }
-    if (defType16) {
-        env->ReleaseStringChars(defType,
-                                reinterpret_cast<const jchar*>(defType16));
-    }
-
-    return ident;
-}
-
-static jstring android_content_AssetManager_getResourceName(JNIEnv* env, jobject clazz,
-                                                            jint resid)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ResTable::resource_name name;
-    if (!am->getResources().getResourceName(resid, true, &name)) {
-        return NULL;
-    }
-
-    String16 str;
-    if (name.package != NULL) {
-        str.setTo(name.package, name.packageLen);
-    }
-    if (name.type8 != NULL || name.type != NULL) {
-        if (str.size() > 0) {
-            char16_t div = ':';
-            str.append(&div, 1);
-        }
-        if (name.type8 != NULL) {
-            str.append(String16(name.type8, name.typeLen));
-        } else {
-            str.append(name.type, name.typeLen);
-        }
-    }
-    if (name.name8 != NULL || name.name != NULL) {
-        if (str.size() > 0) {
-            char16_t div = '/';
-            str.append(&div, 1);
-        }
-        if (name.name8 != NULL) {
-            str.append(String16(name.name8, name.nameLen));
-        } else {
-            str.append(name.name, name.nameLen);
-        }
-    }
-
-    return env->NewString((const jchar*)str.string(), str.size());
-}
-
-static jstring android_content_AssetManager_getResourcePackageName(JNIEnv* env, jobject clazz,
-                                                                   jint resid)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ResTable::resource_name name;
-    if (!am->getResources().getResourceName(resid, true, &name)) {
-        return NULL;
-    }
-
-    if (name.package != NULL) {
-        return env->NewString((const jchar*)name.package, name.packageLen);
-    }
-
-    return NULL;
-}
-
-static jstring android_content_AssetManager_getResourceTypeName(JNIEnv* env, jobject clazz,
-                                                                jint resid)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ResTable::resource_name name;
-    if (!am->getResources().getResourceName(resid, true, &name)) {
-        return NULL;
-    }
-
-    if (name.type8 != NULL) {
-        return env->NewStringUTF(name.type8);
-    }
-
-    if (name.type != NULL) {
-        return env->NewString((const jchar*)name.type, name.typeLen);
-    }
-
-    return NULL;
-}
-
-static jstring android_content_AssetManager_getResourceEntryName(JNIEnv* env, jobject clazz,
-                                                                 jint resid)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-
-    ResTable::resource_name name;
-    if (!am->getResources().getResourceName(resid, true, &name)) {
-        return NULL;
-    }
-
-    if (name.name8 != NULL) {
-        return env->NewStringUTF(name.name8);
-    }
-
-    if (name.name != NULL) {
-        return env->NewString((const jchar*)name.name, name.nameLen);
-    }
-
-    return NULL;
-}
-
-static jint android_content_AssetManager_loadResourceValue(JNIEnv* env, jobject clazz,
-                                                           jint ident,
-                                                           jshort density,
-                                                           jobject outValue,
-                                                           jboolean resolve)
-{
-    if (outValue == NULL) {
-         jniThrowNullPointerException(env, "outValue");
-         return 0;
-    }
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    const ResTable& res(am->getResources());
-
-    Res_value value;
-    ResTable_config config;
-    uint32_t typeSpecFlags;
-    ssize_t block = res.getResource(ident, &value, false, density, &typeSpecFlags, &config);
-    if (kThrowOnBadId) {
-        if (block == BAD_INDEX) {
-            jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-            return 0;
-        }
-    }
-    uint32_t ref = ident;
-    if (resolve) {
-        block = res.resolveReference(&value, block, &ref, &typeSpecFlags, &config);
-        if (kThrowOnBadId) {
-            if (block == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return 0;
-            }
-        }
-    }
-    if (block >= 0) {
-        return copyValue(env, outValue, &res, value, ref, block, typeSpecFlags, &config);
-    }
-
-    return static_cast<jint>(block);
-}
-
-static jint android_content_AssetManager_loadResourceBagValue(JNIEnv* env, jobject clazz,
-                                                           jint ident, jint bagEntryId,
-                                                           jobject outValue, jboolean resolve)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    const ResTable& res(am->getResources());
-
-    // Now lock down the resource object and start pulling stuff from it.
-    res.lock();
-
-    ssize_t block = -1;
-    Res_value value;
-
-    const ResTable::bag_entry* entry = NULL;
-    uint32_t typeSpecFlags;
-    ssize_t entryCount = res.getBagLocked(ident, &entry, &typeSpecFlags);
-
-    for (ssize_t i=0; i<entryCount; i++) {
-        if (((uint32_t)bagEntryId) == entry->map.name.ident) {
-            block = entry->stringBlock;
-            value = entry->map.value;
-        }
-        entry++;
-    }
-
-    res.unlock();
-
-    if (block < 0) {
-        return static_cast<jint>(block);
-    }
-
-    uint32_t ref = ident;
-    if (resolve) {
-        block = res.resolveReference(&value, block, &ref, &typeSpecFlags);
-        if (kThrowOnBadId) {
-            if (block == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return 0;
-            }
-        }
-    }
-    if (block >= 0) {
-        return copyValue(env, outValue, &res, value, ref, block, typeSpecFlags);
-    }
-
-    return static_cast<jint>(block);
-}
-
-static jint android_content_AssetManager_getStringBlockCount(JNIEnv* env, jobject clazz)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    return am->getResources().getTableCount();
-}
-
-static jlong android_content_AssetManager_getNativeStringBlock(JNIEnv* env, jobject clazz,
-                                                           jint block)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    return reinterpret_cast<jlong>(am->getResources().getTableStringBlock(block));
-}
-
-static jstring android_content_AssetManager_getCookieName(JNIEnv* env, jobject clazz,
-                                                       jint cookie)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-    String8 name(am->getAssetPath(static_cast<int32_t>(cookie)));
-    if (name.length() == 0) {
-        jniThrowException(env, "java/lang/IndexOutOfBoundsException", "Empty cookie name");
-        return NULL;
-    }
-    jstring str = env->NewStringUTF(name.string());
-    return str;
-}
-
-static jobject android_content_AssetManager_getAssignedPackageIdentifiers(JNIEnv* env, jobject clazz)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    const ResTable& res = am->getResources();
-
-    jobject sparseArray = env->NewObject(gSparseArrayOffsets.classObject,
-            gSparseArrayOffsets.constructor);
-    const size_t N = res.getBasePackageCount();
-    for (size_t i = 0; i < N; i++) {
-        const String16 name = res.getBasePackageName(i);
-        env->CallVoidMethod(
-            sparseArray, gSparseArrayOffsets.put,
-            static_cast<jint>(res.getBasePackageId(i)),
-            env->NewString(reinterpret_cast<const jchar*>(name.string()),
-                           name.size()));
-    }
-    return sparseArray;
-}
-
-static jlong android_content_AssetManager_newTheme(JNIEnv* env, jobject clazz)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    return reinterpret_cast<jlong>(new ResTable::Theme(am->getResources()));
-}
-
-static void android_content_AssetManager_deleteTheme(JNIEnv* env, jobject clazz,
-                                                     jlong themeHandle)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    delete theme;
-}
-
-static void android_content_AssetManager_applyThemeStyle(JNIEnv* env, jobject clazz,
-                                                         jlong themeHandle,
-                                                         jint styleRes,
-                                                         jboolean force)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    theme->applyStyle(styleRes, force ? true : false);
-}
-
-static void android_content_AssetManager_copyTheme(JNIEnv* env, jobject clazz,
-                                                   jlong destHandle, jlong srcHandle)
-{
-    ResTable::Theme* dest = reinterpret_cast<ResTable::Theme*>(destHandle);
-    ResTable::Theme* src = reinterpret_cast<ResTable::Theme*>(srcHandle);
-    dest->setTo(*src);
-}
-
-static void android_content_AssetManager_clearTheme(JNIEnv* env, jobject clazz, jlong themeHandle)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    theme->clear();
-}
-
-static jint android_content_AssetManager_loadThemeAttributeValue(
-    JNIEnv* env, jobject clazz, jlong themeHandle, jint ident, jobject outValue, jboolean resolve)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    const ResTable& res(theme->getResTable());
-
-    Res_value value;
-    // XXX value could be different in different configs!
-    uint32_t typeSpecFlags = 0;
-    ssize_t block = theme->getAttribute(ident, &value, &typeSpecFlags);
-    uint32_t ref = 0;
-    if (resolve) {
-        block = res.resolveReference(&value, block, &ref, &typeSpecFlags);
-        if (kThrowOnBadId) {
-            if (block == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return 0;
-            }
-        }
-    }
-    return block >= 0 ? copyValue(env, outValue, &res, value, ref, block, typeSpecFlags) : block;
-}
-
-static jint android_content_AssetManager_getThemeChangingConfigurations(JNIEnv* env, jobject clazz,
-                                                                        jlong themeHandle)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    return theme->getChangingConfigurations();
-}
-
-static void android_content_AssetManager_dumpTheme(JNIEnv* env, jobject clazz,
-                                                   jlong themeHandle, jint pri,
-                                                   jstring tag, jstring prefix)
-{
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeHandle);
-    const ResTable& res(theme->getResTable());
-    (void)res;
-
-    // XXX Need to use params.
-    theme->dumpToLog();
-}
-
-static jboolean android_content_AssetManager_resolveAttrs(JNIEnv* env, jobject clazz,
-                                                          jlong themeToken,
-                                                          jint defStyleAttr,
-                                                          jint defStyleRes,
-                                                          jintArray inValues,
-                                                          jintArray attrs,
-                                                          jintArray outValues,
-                                                          jintArray outIndices)
-{
-    if (themeToken == 0) {
-        jniThrowNullPointerException(env, "theme token");
-        return JNI_FALSE;
-    }
-    if (attrs == NULL) {
-        jniThrowNullPointerException(env, "attrs");
-        return JNI_FALSE;
-    }
-    if (outValues == NULL) {
-        jniThrowNullPointerException(env, "out values");
-        return JNI_FALSE;
-    }
-
-    const jsize NI = env->GetArrayLength(attrs);
-    const jsize NV = env->GetArrayLength(outValues);
-    if (NV < (NI*STYLE_NUM_ENTRIES)) {
-        jniThrowException(env, "java/lang/IndexOutOfBoundsException", "out values too small");
-        return JNI_FALSE;
-    }
-
-    jint* src = (jint*)env->GetPrimitiveArrayCritical(attrs, 0);
-    if (src == NULL) {
-        return JNI_FALSE;
-    }
-
-    jint* srcValues = (jint*)env->GetPrimitiveArrayCritical(inValues, 0);
-    const jsize NSV = srcValues == NULL ? 0 : env->GetArrayLength(inValues);
-
-    jint* baseDest = (jint*)env->GetPrimitiveArrayCritical(outValues, 0);
-    if (baseDest == NULL) {
-        env->ReleasePrimitiveArrayCritical(attrs, src, 0);
-        return JNI_FALSE;
-    }
-
-    jint* indices = NULL;
-    if (outIndices != NULL) {
-        if (env->GetArrayLength(outIndices) > NI) {
-            indices = (jint*)env->GetPrimitiveArrayCritical(outIndices, 0);
-        }
-    }
-
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeToken);
-    bool result = ResolveAttrs(theme, defStyleAttr, defStyleRes,
-                               (uint32_t*) srcValues, NSV,
-                               (uint32_t*) src, NI,
-                               (uint32_t*) baseDest,
-                               (uint32_t*) indices);
-
-    if (indices != NULL) {
-        env->ReleasePrimitiveArrayCritical(outIndices, indices, 0);
-    }
-    env->ReleasePrimitiveArrayCritical(outValues, baseDest, 0);
-    env->ReleasePrimitiveArrayCritical(inValues, srcValues, 0);
-    env->ReleasePrimitiveArrayCritical(attrs, src, 0);
-    return result ? JNI_TRUE : JNI_FALSE;
-}
-
-static void android_content_AssetManager_applyStyle(JNIEnv* env, jobject, jlong themeToken,
-        jint defStyleAttr, jint defStyleRes, jlong xmlParserToken, jintArray attrsObj, jint length,
-        jlong outValuesAddress, jlong outIndicesAddress) {
-    jint* attrs = env->GetIntArrayElements(attrsObj, 0);
-    ResTable::Theme* theme = reinterpret_cast<ResTable::Theme*>(themeToken);
-    ResXMLParser* xmlParser = reinterpret_cast<ResXMLParser*>(xmlParserToken);
-    uint32_t* outValues = reinterpret_cast<uint32_t*>(static_cast<uintptr_t>(outValuesAddress));
-    uint32_t* outIndices = reinterpret_cast<uint32_t*>(static_cast<uintptr_t>(outIndicesAddress));
-    ApplyStyle(theme, xmlParser, defStyleAttr, defStyleRes,
-            reinterpret_cast<const uint32_t*>(attrs), length, outValues, outIndices);
-    env->ReleaseIntArrayElements(attrsObj, attrs, JNI_ABORT);
-}
-
-static jboolean android_content_AssetManager_retrieveAttributes(JNIEnv* env, jobject clazz,
-                                                        jlong xmlParserToken,
-                                                        jintArray attrs,
-                                                        jintArray outValues,
-                                                        jintArray outIndices)
-{
-    if (xmlParserToken == 0) {
-        jniThrowNullPointerException(env, "xmlParserToken");
-        return JNI_FALSE;
-    }
-    if (attrs == NULL) {
-        jniThrowNullPointerException(env, "attrs");
-        return JNI_FALSE;
-    }
-    if (outValues == NULL) {
-        jniThrowNullPointerException(env, "out values");
-        return JNI_FALSE;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return JNI_FALSE;
-    }
-    const ResTable& res(am->getResources());
-    ResXMLParser* xmlParser = (ResXMLParser*)xmlParserToken;
-
-    const jsize NI = env->GetArrayLength(attrs);
-    const jsize NV = env->GetArrayLength(outValues);
-    if (NV < (NI*STYLE_NUM_ENTRIES)) {
-        jniThrowException(env, "java/lang/IndexOutOfBoundsException", "out values too small");
-        return JNI_FALSE;
-    }
-
-    jint* src = (jint*)env->GetPrimitiveArrayCritical(attrs, 0);
-    if (src == NULL) {
-        return JNI_FALSE;
-    }
-
-    jint* baseDest = (jint*)env->GetPrimitiveArrayCritical(outValues, 0);
-    if (baseDest == NULL) {
-        env->ReleasePrimitiveArrayCritical(attrs, src, 0);
-        return JNI_FALSE;
-    }
-
-    jint* indices = NULL;
-    if (outIndices != NULL) {
-        if (env->GetArrayLength(outIndices) > NI) {
-            indices = (jint*)env->GetPrimitiveArrayCritical(outIndices, 0);
-        }
-    }
-
-    bool result = RetrieveAttributes(&res, xmlParser,
-                                     (uint32_t*) src, NI,
-                                     (uint32_t*) baseDest,
-                                     (uint32_t*) indices);
-
-    if (indices != NULL) {
-        env->ReleasePrimitiveArrayCritical(outIndices, indices, 0);
-    }
-    env->ReleasePrimitiveArrayCritical(outValues, baseDest, 0);
-    env->ReleasePrimitiveArrayCritical(attrs, src, 0);
-    return result ? JNI_TRUE : JNI_FALSE;
-}
-
-static jint android_content_AssetManager_getArraySize(JNIEnv* env, jobject clazz,
-                                                       jint id)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-    const ResTable& res(am->getResources());
-
-    res.lock();
-    const ResTable::bag_entry* defStyleEnt = NULL;
-    ssize_t bagOff = res.getBagLocked(id, &defStyleEnt);
-    res.unlock();
-
-    return static_cast<jint>(bagOff);
-}
-
-static jint android_content_AssetManager_retrieveArray(JNIEnv* env, jobject clazz,
-                                                        jint id,
-                                                        jintArray outValues)
-{
-    if (outValues == NULL) {
-        jniThrowNullPointerException(env, "out values");
-        return JNI_FALSE;
-    }
-
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return JNI_FALSE;
-    }
-    const ResTable& res(am->getResources());
-    ResTable_config config;
-    Res_value value;
-    ssize_t block;
-
-    const jsize NV = env->GetArrayLength(outValues);
-
-    jint* baseDest = (jint*)env->GetPrimitiveArrayCritical(outValues, 0);
-    jint* dest = baseDest;
-    if (dest == NULL) {
-        jniThrowException(env, "java/lang/OutOfMemoryError", "");
-        return JNI_FALSE;
-    }
-
-    // Now lock down the resource object and start pulling stuff from it.
-    res.lock();
-
-    const ResTable::bag_entry* arrayEnt = NULL;
-    uint32_t arrayTypeSetFlags = 0;
-    ssize_t bagOff = res.getBagLocked(id, &arrayEnt, &arrayTypeSetFlags);
-    const ResTable::bag_entry* endArrayEnt = arrayEnt +
-        (bagOff >= 0 ? bagOff : 0);
-
-    int i = 0;
-    uint32_t typeSetFlags;
-    while (i < NV && arrayEnt < endArrayEnt) {
-        block = arrayEnt->stringBlock;
-        typeSetFlags = arrayTypeSetFlags;
-        config.density = 0;
-        value = arrayEnt->map.value;
-
-        uint32_t resid = 0;
-        if (value.dataType != Res_value::TYPE_NULL) {
-            // Take care of resolving the found resource to its final value.
-            //printf("Resolving attribute reference\n");
-            ssize_t newBlock = res.resolveReference(&value, block, &resid,
-                    &typeSetFlags, &config);
-            if (kThrowOnBadId) {
-                if (newBlock == BAD_INDEX) {
-                    jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                    return JNI_FALSE;
-                }
-            }
-            if (newBlock >= 0) block = newBlock;
-        }
-
-        // Deal with the special @null value -- it turns back to TYPE_NULL.
-        if (value.dataType == Res_value::TYPE_REFERENCE && value.data == 0) {
-            value.dataType = Res_value::TYPE_NULL;
-            value.data = Res_value::DATA_NULL_UNDEFINED;
-        }
-
-        //printf("Attribute 0x%08x: final type=0x%x, data=0x%08x\n", curIdent, value.dataType, value.data);
-
-        // Write the final value back to Java.
-        dest[STYLE_TYPE] = value.dataType;
-        dest[STYLE_DATA] = value.data;
-        dest[STYLE_ASSET_COOKIE] = reinterpret_cast<jint>(res.getTableCookie(block));
-        dest[STYLE_RESOURCE_ID] = resid;
-        dest[STYLE_CHANGING_CONFIGURATIONS] = typeSetFlags;
-        dest[STYLE_DENSITY] = config.density;
-        dest += STYLE_NUM_ENTRIES;
-        i+= STYLE_NUM_ENTRIES;
-        arrayEnt++;
-    }
-
-    i /= STYLE_NUM_ENTRIES;
-
-    res.unlock();
-
-    env->ReleasePrimitiveArrayCritical(outValues, baseDest, 0);
-
-    return i;
-}
-
-static jlong android_content_AssetManager_openXmlAssetNative(JNIEnv* env, jobject clazz,
-                                                         jint cookie,
-                                                         jstring fileName)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return 0;
-    }
-
-    ALOGV("openXmlAsset in %p (Java object %p)\n", am, clazz);
-
-    ScopedUtfChars fileName8(env, fileName);
-    if (fileName8.c_str() == NULL) {
-        return 0;
-    }
-
-    int32_t assetCookie = static_cast<int32_t>(cookie);
-    Asset* a = assetCookie
-        ? am->openNonAsset(assetCookie, fileName8.c_str(), Asset::ACCESS_BUFFER)
-        : am->openNonAsset(fileName8.c_str(), Asset::ACCESS_BUFFER, &assetCookie);
-
-    if (a == NULL) {
-        jniThrowException(env, "java/io/FileNotFoundException", fileName8.c_str());
-        return 0;
-    }
-
-    const DynamicRefTable* dynamicRefTable =
-            am->getResources().getDynamicRefTableForCookie(assetCookie);
-    ResXMLTree* block = new ResXMLTree(dynamicRefTable);
-    status_t err = block->setTo(a->getBuffer(true), a->getLength(), true);
-    a->close();
-    delete a;
-
-    if (err != NO_ERROR) {
-        jniThrowException(env, "java/io/FileNotFoundException", "Corrupt XML binary file");
-        return 0;
-    }
-
-    return reinterpret_cast<jlong>(block);
-}
-
-static jintArray android_content_AssetManager_getArrayStringInfo(JNIEnv* env, jobject clazz,
-                                                                 jint arrayResId)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-    const ResTable& res(am->getResources());
-
-    const ResTable::bag_entry* startOfBag;
-    const ssize_t N = res.lockBag(arrayResId, &startOfBag);
-    if (N < 0) {
-        return NULL;
-    }
-
-    jintArray array = env->NewIntArray(N * 2);
-    if (array == NULL) {
-        res.unlockBag(startOfBag);
-        return NULL;
-    }
-
-    Res_value value;
-    const ResTable::bag_entry* bag = startOfBag;
-    for (size_t i = 0, j = 0; ((ssize_t)i)<N; i++, bag++) {
-        jint stringIndex = -1;
-        jint stringBlock = 0;
-        value = bag->map.value;
-
-        // Take care of resolving the found resource to its final value.
-        stringBlock = res.resolveReference(&value, bag->stringBlock, NULL);
-        if (value.dataType == Res_value::TYPE_STRING) {
-            stringIndex = value.data;
-        }
-
-        if (kThrowOnBadId) {
-            if (stringBlock == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return array;
-            }
-        }
-
-        //todo: It might be faster to allocate a C array to contain
-        //      the blocknums and indices, put them in there and then
-        //      do just one SetIntArrayRegion()
-        env->SetIntArrayRegion(array, j, 1, &stringBlock);
-        env->SetIntArrayRegion(array, j + 1, 1, &stringIndex);
-        j = j + 2;
-    }
-    res.unlockBag(startOfBag);
-    return array;
-}
-
-static jobjectArray android_content_AssetManager_getArrayStringResource(JNIEnv* env, jobject clazz,
-                                                                        jint arrayResId)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-    const ResTable& res(am->getResources());
-
-    const ResTable::bag_entry* startOfBag;
-    const ssize_t N = res.lockBag(arrayResId, &startOfBag);
-    if (N < 0) {
-        return NULL;
-    }
-
-    jobjectArray array = env->NewObjectArray(N, g_stringClass, NULL);
-    if (env->ExceptionCheck()) {
-        res.unlockBag(startOfBag);
-        return NULL;
-    }
-
-    Res_value value;
-    const ResTable::bag_entry* bag = startOfBag;
-    size_t strLen = 0;
-    for (size_t i=0; ((ssize_t)i)<N; i++, bag++) {
-        value = bag->map.value;
-        jstring str = NULL;
-
-        // Take care of resolving the found resource to its final value.
-        ssize_t block = res.resolveReference(&value, bag->stringBlock, NULL);
-        if (kThrowOnBadId) {
-            if (block == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return array;
-            }
-        }
-        if (value.dataType == Res_value::TYPE_STRING) {
-            const ResStringPool* pool = res.getTableStringBlock(block);
-            const char* str8 = pool->string8At(value.data, &strLen);
-            if (str8 != NULL) {
-                str = env->NewStringUTF(str8);
-            } else {
-                const char16_t* str16 = pool->stringAt(value.data, &strLen);
-                str = env->NewString(reinterpret_cast<const jchar*>(str16),
-                                     strLen);
-            }
-
-            // If one of our NewString{UTF} calls failed due to memory, an
-            // exception will be pending.
-            if (env->ExceptionCheck()) {
-                res.unlockBag(startOfBag);
-                return NULL;
-            }
-
-            env->SetObjectArrayElement(array, i, str);
-
-            // str is not NULL at that point, otherwise ExceptionCheck would have been true.
-            // If we have a large amount of strings in our array, we might
-            // overflow the local reference table of the VM.
-            env->DeleteLocalRef(str);
-        }
-    }
-    res.unlockBag(startOfBag);
-    return array;
-}
-
-static jintArray android_content_AssetManager_getArrayIntResource(JNIEnv* env, jobject clazz,
-                                                                        jint arrayResId)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-    const ResTable& res(am->getResources());
-
-    const ResTable::bag_entry* startOfBag;
-    const ssize_t N = res.lockBag(arrayResId, &startOfBag);
-    if (N < 0) {
-        return NULL;
-    }
-
-    jintArray array = env->NewIntArray(N);
-    if (array == NULL) {
-        res.unlockBag(startOfBag);
-        return NULL;
-    }
-
-    Res_value value;
-    const ResTable::bag_entry* bag = startOfBag;
-    for (size_t i=0; ((ssize_t)i)<N; i++, bag++) {
-        value = bag->map.value;
-
-        // Take care of resolving the found resource to its final value.
-        ssize_t block = res.resolveReference(&value, bag->stringBlock, NULL);
-        if (kThrowOnBadId) {
-            if (block == BAD_INDEX) {
-                jniThrowException(env, "java/lang/IllegalStateException", "Bad resource!");
-                return array;
-            }
-        }
-        if (value.dataType >= Res_value::TYPE_FIRST_INT
-                && value.dataType <= Res_value::TYPE_LAST_INT) {
-            int intVal = value.data;
-            env->SetIntArrayRegion(array, i, 1, &intVal);
-        }
-    }
-    res.unlockBag(startOfBag);
-    return array;
-}
-
-static jintArray android_content_AssetManager_getStyleAttributes(JNIEnv* env, jobject clazz,
-                                                                 jint styleId)
-{
-    AssetManager* am = assetManagerForJavaObject(env, clazz);
-    if (am == NULL) {
-        return NULL;
-    }
-    const ResTable& res(am->getResources());
-
-    const ResTable::bag_entry* startOfBag;
-    const ssize_t N = res.lockBag(styleId, &startOfBag);
-    if (N < 0) {
-        return NULL;
-    }
-
-    jintArray array = env->NewIntArray(N);
-    if (array == NULL) {
-        res.unlockBag(startOfBag);
-        return NULL;
-    }
-
-    const ResTable::bag_entry* bag = startOfBag;
-    for (size_t i=0; ((ssize_t)i)<N; i++, bag++) {
-        int resourceId = bag->map.name.ident;
-        env->SetIntArrayRegion(array, i, 1, &resourceId);
-    }
-    res.unlockBag(startOfBag);
-    return array;
-}
-
-static void android_content_AssetManager_init(JNIEnv* env, jobject clazz, jboolean isSystem)
-{
-    if (isSystem) {
-        verifySystemIdmaps();
-    }
-    AssetManager* am = new AssetManager();
-    if (am == NULL) {
-        jniThrowException(env, "java/lang/OutOfMemoryError", "");
-        return;
-    }
-
-    am->addDefaultAssets();
-
-    ALOGV("Created AssetManager %p for Java object %p\n", am, clazz);
-    env->SetLongField(clazz, gAssetManagerOffsets.mObject, reinterpret_cast<jlong>(am));
-}
-
-static void android_content_AssetManager_destroy(JNIEnv* env, jobject clazz)
-{
-    AssetManager* am = (AssetManager*)
-        (env->GetLongField(clazz, gAssetManagerOffsets.mObject));
-    ALOGV("Destroying AssetManager %p for Java object %p\n", am, clazz);
-    if (am != NULL) {
-        delete am;
-        env->SetLongField(clazz, gAssetManagerOffsets.mObject, 0);
-    }
-}
-
-static jint android_content_AssetManager_getGlobalAssetCount(JNIEnv* env, jobject clazz)
-{
-    return Asset::getGlobalCount();
-}
-
-static jobject android_content_AssetManager_getAssetAllocations(JNIEnv* env, jobject clazz)
-{
-    String8 alloc = Asset::getAssetAllocations();
-    if (alloc.length() <= 0) {
-        return NULL;
-    }
-
-    jstring str = env->NewStringUTF(alloc.string());
-    return str;
-}
-
-static jint android_content_AssetManager_getGlobalAssetManagerCount(JNIEnv* env, jobject clazz)
-{
-    return AssetManager::getGlobalCount();
-}
-
-// ----------------------------------------------------------------------------
-
-/*
- * JNI registration.
- */
-static const JNINativeMethod gAssetManagerMethods[] = {
-    /* name, signature, funcPtr */
-
-    // Basic asset stuff.
-    { "openAsset",      "(Ljava/lang/String;I)J",
-        (void*) android_content_AssetManager_openAsset },
-    { "openAssetFd",      "(Ljava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
-        (void*) android_content_AssetManager_openAssetFd },
-    { "openNonAssetNative", "(ILjava/lang/String;I)J",
-        (void*) android_content_AssetManager_openNonAssetNative },
-    { "openNonAssetFdNative", "(ILjava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
-        (void*) android_content_AssetManager_openNonAssetFdNative },
-    { "list",           "(Ljava/lang/String;)[Ljava/lang/String;",
-        (void*) android_content_AssetManager_list },
-    { "destroyAsset",   "(J)V",
-        (void*) android_content_AssetManager_destroyAsset },
-    { "readAssetChar",  "(J)I",
-        (void*) android_content_AssetManager_readAssetChar },
-    { "readAsset",      "(J[BII)I",
-        (void*) android_content_AssetManager_readAsset },
-    { "seekAsset",      "(JJI)J",
-        (void*) android_content_AssetManager_seekAsset },
-    { "getAssetLength", "(J)J",
-        (void*) android_content_AssetManager_getAssetLength },
-    { "getAssetRemainingLength", "(J)J",
-        (void*) android_content_AssetManager_getAssetRemainingLength },
-    { "addAssetPathNative", "(Ljava/lang/String;Z)I",
-        (void*) android_content_AssetManager_addAssetPath },
-    { "addAssetFdNative", "(Ljava/io/FileDescriptor;Ljava/lang/String;Z)I",
-        (void*) android_content_AssetManager_addAssetFd },
-    { "addOverlayPathNative",   "(Ljava/lang/String;)I",
-        (void*) android_content_AssetManager_addOverlayPath },
-    { "isUpToDate",     "()Z",
-        (void*) android_content_AssetManager_isUpToDate },
-
-    // Resources.
-    { "getLocales",      "()[Ljava/lang/String;",
-        (void*) android_content_AssetManager_getLocales },
-    { "getNonSystemLocales", "()[Ljava/lang/String;",
-        (void*) android_content_AssetManager_getNonSystemLocales },
-    { "getSizeConfigurations", "()[Landroid/content/res/Configuration;",
-        (void*) android_content_AssetManager_getSizeConfigurations },
-    { "setConfiguration", "(IILjava/lang/String;IIIIIIIIIIIIIII)V",
-        (void*) android_content_AssetManager_setConfiguration },
-    { "getResourceIdentifier","(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)I",
-        (void*) android_content_AssetManager_getResourceIdentifier },
-    { "getResourceName","(I)Ljava/lang/String;",
-        (void*) android_content_AssetManager_getResourceName },
-    { "getResourcePackageName","(I)Ljava/lang/String;",
-        (void*) android_content_AssetManager_getResourcePackageName },
-    { "getResourceTypeName","(I)Ljava/lang/String;",
-        (void*) android_content_AssetManager_getResourceTypeName },
-    { "getResourceEntryName","(I)Ljava/lang/String;",
-        (void*) android_content_AssetManager_getResourceEntryName },
-    { "loadResourceValue","(ISLandroid/util/TypedValue;Z)I",
-        (void*) android_content_AssetManager_loadResourceValue },
-    { "loadResourceBagValue","(IILandroid/util/TypedValue;Z)I",
-        (void*) android_content_AssetManager_loadResourceBagValue },
-    { "getStringBlockCount","()I",
-        (void*) android_content_AssetManager_getStringBlockCount },
-    { "getNativeStringBlock","(I)J",
-        (void*) android_content_AssetManager_getNativeStringBlock },
-    { "getCookieName","(I)Ljava/lang/String;",
-        (void*) android_content_AssetManager_getCookieName },
-    { "getAssignedPackageIdentifiers","()Landroid/util/SparseArray;",
-        (void*) android_content_AssetManager_getAssignedPackageIdentifiers },
-
-    // Themes.
-    { "newTheme", "()J",
-        (void*) android_content_AssetManager_newTheme },
-    { "deleteTheme", "(J)V",
-        (void*) android_content_AssetManager_deleteTheme },
-    { "applyThemeStyle", "(JIZ)V",
-        (void*) android_content_AssetManager_applyThemeStyle },
-    { "copyTheme", "(JJ)V",
-        (void*) android_content_AssetManager_copyTheme },
-    { "clearTheme", "(J)V",
-        (void*) android_content_AssetManager_clearTheme },
-    { "loadThemeAttributeValue", "(JILandroid/util/TypedValue;Z)I",
-        (void*) android_content_AssetManager_loadThemeAttributeValue },
-    { "getThemeChangingConfigurations", "(J)I",
-        (void*) android_content_AssetManager_getThemeChangingConfigurations },
-    { "dumpTheme", "(JILjava/lang/String;Ljava/lang/String;)V",
-        (void*) android_content_AssetManager_dumpTheme },
-    { "applyStyle","(JIIJ[IIJJ)V",
-        (void*) android_content_AssetManager_applyStyle },
-    { "resolveAttrs","(JII[I[I[I[I)Z",
-        (void*) android_content_AssetManager_resolveAttrs },
-    { "retrieveAttributes","(J[I[I[I)Z",
-        (void*) android_content_AssetManager_retrieveAttributes },
-    { "getArraySize","(I)I",
-        (void*) android_content_AssetManager_getArraySize },
-    { "retrieveArray","(I[I)I",
-        (void*) android_content_AssetManager_retrieveArray },
-
-    // XML files.
-    { "openXmlAssetNative", "(ILjava/lang/String;)J",
-        (void*) android_content_AssetManager_openXmlAssetNative },
-
-    // Arrays.
-    { "getArrayStringResource","(I)[Ljava/lang/String;",
-        (void*) android_content_AssetManager_getArrayStringResource },
-    { "getArrayStringInfo","(I)[I",
-        (void*) android_content_AssetManager_getArrayStringInfo },
-    { "getArrayIntResource","(I)[I",
-        (void*) android_content_AssetManager_getArrayIntResource },
-    { "getStyleAttributes","(I)[I",
-        (void*) android_content_AssetManager_getStyleAttributes },
-
-    // Bookkeeping.
-    { "init",           "(Z)V",
-        (void*) android_content_AssetManager_init },
-    { "destroy",        "()V",
-        (void*) android_content_AssetManager_destroy },
-    { "getGlobalAssetCount", "()I",
-        (void*) android_content_AssetManager_getGlobalAssetCount },
-    { "getAssetAllocations", "()Ljava/lang/String;",
-        (void*) android_content_AssetManager_getAssetAllocations },
-    { "getGlobalAssetManagerCount", "()I",
-        (void*) android_content_AssetManager_getGlobalAssetManagerCount },
+// Let the opaque type AAssetManager refer to a guarded AssetManager2 instance.
+struct GuardedAssetManager : public ::AAssetManager {
+  Guarded<AssetManager2> guarded_assetmanager;
 };
 
-int register_android_content_AssetManager(JNIEnv* env)
-{
-    jclass typedValue = FindClassOrDie(env, "android/util/TypedValue");
-    gTypedValueOffsets.mType = GetFieldIDOrDie(env, typedValue, "type", "I");
-    gTypedValueOffsets.mData = GetFieldIDOrDie(env, typedValue, "data", "I");
-    gTypedValueOffsets.mString = GetFieldIDOrDie(env, typedValue, "string",
-                                                 "Ljava/lang/CharSequence;");
-    gTypedValueOffsets.mAssetCookie = GetFieldIDOrDie(env, typedValue, "assetCookie", "I");
-    gTypedValueOffsets.mResourceId = GetFieldIDOrDie(env, typedValue, "resourceId", "I");
-    gTypedValueOffsets.mChangingConfigurations = GetFieldIDOrDie(env, typedValue,
-                                                                 "changingConfigurations", "I");
-    gTypedValueOffsets.mDensity = GetFieldIDOrDie(env, typedValue, "density", "I");
+::AAssetManager* NdkAssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager) {
+  jlong assetmanager_handle = env->GetLongField(jassetmanager, gAssetManagerOffsets.mObject);
+  ::AAssetManager* am = reinterpret_cast<::AAssetManager*>(assetmanager_handle);
+  if (am == nullptr) {
+    jniThrowException(env, "java/lang/IllegalStateException", "AssetManager has been finalized!");
+    return nullptr;
+  }
+  return am;
+}
 
-    jclass assetFd = FindClassOrDie(env, "android/content/res/AssetFileDescriptor");
-    gAssetFileDescriptorOffsets.mFd = GetFieldIDOrDie(env, assetFd, "mFd",
-                                                      "Landroid/os/ParcelFileDescriptor;");
-    gAssetFileDescriptorOffsets.mStartOffset = GetFieldIDOrDie(env, assetFd, "mStartOffset", "J");
-    gAssetFileDescriptorOffsets.mLength = GetFieldIDOrDie(env, assetFd, "mLength", "J");
+Guarded<AssetManager2>* AssetManagerForNdkAssetManager(::AAssetManager* assetmanager) {
+  if (assetmanager == nullptr) {
+    return nullptr;
+  }
+  return &reinterpret_cast<GuardedAssetManager*>(assetmanager)->guarded_assetmanager;
+}
 
-    jclass assetManager = FindClassOrDie(env, "android/content/res/AssetManager");
-    gAssetManagerOffsets.mObject = GetFieldIDOrDie(env, assetManager, "mObject", "J");
+Guarded<AssetManager2>* AssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager) {
+  return AssetManagerForNdkAssetManager(NdkAssetManagerForJavaObject(env, jassetmanager));
+}
 
-    jclass stringClass = FindClassOrDie(env, "java/lang/String");
-    g_stringClass = MakeGlobalRefOrDie(env, stringClass);
+static Guarded<AssetManager2>& AssetManagerFromLong(jlong ptr) {
+  return *AssetManagerForNdkAssetManager(reinterpret_cast<AAssetManager*>(ptr));
+}
 
-    jclass sparseArrayClass = FindClassOrDie(env, "android/util/SparseArray");
-    gSparseArrayOffsets.classObject = MakeGlobalRefOrDie(env, sparseArrayClass);
-    gSparseArrayOffsets.constructor = GetMethodIDOrDie(env, gSparseArrayOffsets.classObject,
-                                                       "<init>", "()V");
-    gSparseArrayOffsets.put = GetMethodIDOrDie(env, gSparseArrayOffsets.classObject, "put",
-                                               "(ILjava/lang/Object;)V");
+static jobject ReturnParcelFileDescriptor(JNIEnv* env, std::unique_ptr<Asset> asset,
+                                          jlongArray out_offsets) {
+  off64_t start_offset, length;
+  int fd = asset->openFileDescriptor(&start_offset, &length);
+  asset.reset();
 
-    jclass configurationClass = FindClassOrDie(env, "android/content/res/Configuration");
-    gConfigurationOffsets.classObject = MakeGlobalRefOrDie(env, configurationClass);
-    gConfigurationOffsets.constructor = GetMethodIDOrDie(env, configurationClass,
-            "<init>", "()V");
-    gConfigurationOffsets.mSmallestScreenWidthDpOffset = GetFieldIDOrDie(env, configurationClass,
-            "smallestScreenWidthDp", "I");
-    gConfigurationOffsets.mScreenWidthDpOffset = GetFieldIDOrDie(env, configurationClass,
-            "screenWidthDp", "I");
-    gConfigurationOffsets.mScreenHeightDpOffset = GetFieldIDOrDie(env, configurationClass,
-            "screenHeightDp", "I");
+  if (fd < 0) {
+    jniThrowException(env, "java/io/FileNotFoundException",
+                      "This file can not be opened as a file descriptor; it is probably "
+                      "compressed");
+    return nullptr;
+  }
 
-    return RegisterMethodsOrDie(env, "android/content/res/AssetManager", gAssetManagerMethods,
-                                NELEM(gAssetManagerMethods));
+  jlong* offsets = reinterpret_cast<jlong*>(env->GetPrimitiveArrayCritical(out_offsets, 0));
+  if (offsets == nullptr) {
+    close(fd);
+    return nullptr;
+  }
+
+  offsets[0] = start_offset;
+  offsets[1] = length;
+
+  env->ReleasePrimitiveArrayCritical(out_offsets, offsets, 0);
+
+  jobject file_desc = jniCreateFileDescriptor(env, fd);
+  if (file_desc == nullptr) {
+    close(fd);
+    return nullptr;
+  }
+  return newParcelFileDescriptor(env, file_desc);
+}
+
+static jint NativeGetGlobalAssetCount(JNIEnv* /*env*/, jobject /*clazz*/) {
+  return Asset::getGlobalCount();
+}
+
+static jobject NativeGetAssetAllocations(JNIEnv* env, jobject /*clazz*/) {
+  String8 alloc = Asset::getAssetAllocations();
+  if (alloc.length() <= 0) {
+    return nullptr;
+  }
+  return env->NewStringUTF(alloc.string());
+}
+
+static jint NativeGetGlobalAssetManagerCount(JNIEnv* /*env*/, jobject /*clazz*/) {
+  // TODO(adamlesinski): Switch to AssetManager2.
+  return AssetManager::getGlobalCount();
+}
+
+static jlong NativeCreate(JNIEnv* /*env*/, jclass /*clazz*/) {
+  // AssetManager2 needs to be protected by a lock. To avoid cache misses, we allocate the lock and
+  // AssetManager2 in a contiguous block (GuardedAssetManager).
+  return reinterpret_cast<jlong>(new GuardedAssetManager());
+}
+
+static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
+  delete reinterpret_cast<GuardedAssetManager*>(ptr);
+}
+
+static void NativeSetApkAssets(JNIEnv* env, jclass /*clazz*/, jlong ptr,
+                               jobjectArray apk_assets_array, jboolean invalidate_caches) {
+  const jsize apk_assets_len = env->GetArrayLength(apk_assets_array);
+  std::vector<const ApkAssets*> apk_assets;
+  apk_assets.reserve(apk_assets_len);
+  for (jsize i = 0; i < apk_assets_len; i++) {
+    jobject obj = env->GetObjectArrayElement(apk_assets_array, i);
+    if (obj == nullptr) {
+      std::string msg = StringPrintf("ApkAssets at index %d is null", i);
+      jniThrowNullPointerException(env, msg.c_str());
+      return;
+    }
+
+    jlong apk_assets_native_ptr = env->GetLongField(obj, gApkAssetsFields.native_ptr);
+    if (env->ExceptionCheck()) {
+      return;
+    }
+    apk_assets.push_back(reinterpret_cast<const ApkAssets*>(apk_assets_native_ptr));
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  assetmanager->SetApkAssets(apk_assets, invalidate_caches);
+}
+
+static void NativeSetConfiguration(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint mcc, jint mnc,
+                                   jstring locale, jint orientation, jint touchscreen, jint density,
+                                   jint keyboard, jint keyboard_hidden, jint navigation,
+                                   jint screen_width, jint screen_height,
+                                   jint smallest_screen_width_dp, jint screen_width_dp,
+                                   jint screen_height_dp, jint screen_layout, jint ui_mode,
+                                   jint color_mode, jint major_version) {
+  ResTable_config configuration;
+  memset(&configuration, 0, sizeof(configuration));
+  configuration.mcc = static_cast<uint16_t>(mcc);
+  configuration.mnc = static_cast<uint16_t>(mnc);
+  configuration.orientation = static_cast<uint8_t>(orientation);
+  configuration.touchscreen = static_cast<uint8_t>(touchscreen);
+  configuration.density = static_cast<uint16_t>(density);
+  configuration.keyboard = static_cast<uint8_t>(keyboard);
+  configuration.inputFlags = static_cast<uint8_t>(keyboard_hidden);
+  configuration.navigation = static_cast<uint8_t>(navigation);
+  configuration.screenWidth = static_cast<uint16_t>(screen_width);
+  configuration.screenHeight = static_cast<uint16_t>(screen_height);
+  configuration.smallestScreenWidthDp = static_cast<uint16_t>(smallest_screen_width_dp);
+  configuration.screenWidthDp = static_cast<uint16_t>(screen_width_dp);
+  configuration.screenHeightDp = static_cast<uint16_t>(screen_height_dp);
+  configuration.screenLayout = static_cast<uint8_t>(screen_layout);
+  configuration.uiMode = static_cast<uint8_t>(ui_mode);
+  configuration.colorMode = static_cast<uint8_t>(color_mode);
+  configuration.sdkVersion = static_cast<uint16_t>(major_version);
+
+  if (locale != nullptr) {
+    ScopedUtfChars locale_utf8(env, locale);
+    CHECK(locale_utf8.c_str() != nullptr);
+    configuration.setBcp47Locale(locale_utf8.c_str());
+  }
+
+  // Constants duplicated from Java class android.content.res.Configuration.
+  static const jint kScreenLayoutRoundMask = 0x300;
+  static const jint kScreenLayoutRoundShift = 8;
+
+  // In Java, we use a 32bit integer for screenLayout, while we only use an 8bit integer
+  // in C++. We must extract the round qualifier out of the Java screenLayout and put it
+  // into screenLayout2.
+  configuration.screenLayout2 =
+      static_cast<uint8_t>((screen_layout & kScreenLayoutRoundMask) >> kScreenLayoutRoundShift);
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  assetmanager->SetConfiguration(configuration);
+}
+
+static jobject NativeGetAssignedPackageIdentifiers(JNIEnv* env, jclass /*clazz*/, jlong ptr) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+
+  jobject sparse_array =
+        env->NewObject(gSparseArrayOffsets.classObject, gSparseArrayOffsets.constructor);
+
+  if (sparse_array == nullptr) {
+    // An exception is pending.
+    return nullptr;
+  }
+
+  assetmanager->ForEachPackage([&](const std::string& package_name, uint8_t package_id) {
+    jstring jpackage_name = env->NewStringUTF(package_name.c_str());
+    if (jpackage_name == nullptr) {
+      // An exception is pending.
+      return;
+    }
+
+    env->CallVoidMethod(sparse_array, gSparseArrayOffsets.put, static_cast<jint>(package_id),
+                        jpackage_name);
+  });
+  return sparse_array;
+}
+
+static jobjectArray NativeList(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring path) {
+  ScopedUtfChars path_utf8(env, path);
+  if (path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return nullptr;
+  }
+
+  std::vector<std::string> all_file_paths;
+  {
+    StringPiece normalized_path = path_utf8.c_str();
+    if (normalized_path.data()[0] == '/') {
+      normalized_path = normalized_path.substr(1);
+    }
+    std::string root_path = StringPrintf("assets/%s", normalized_path.data());
+    ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+    for (const ApkAssets* assets : assetmanager->GetApkAssets()) {
+      assets->ForEachFile(root_path, [&](const StringPiece& file_path, FileType type) {
+        if (type == FileType::kFileTypeRegular) {
+          all_file_paths.push_back(file_path.to_string());
+        }
+      });
+    }
+  }
+
+  jobjectArray array = env->NewObjectArray(all_file_paths.size(), g_stringClass, nullptr);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  jsize index = 0;
+  for (const std::string& file_path : all_file_paths) {
+    jstring java_string = env->NewStringUTF(file_path.c_str());
+
+    // Check for errors creating the strings (if malformed or no memory).
+    if (env->ExceptionCheck()) {
+     return nullptr;
+    }
+
+    env->SetObjectArrayElement(array, index++, java_string);
+
+    // If we have a large amount of string in our array, we might overflow the
+    // local reference table of the VM.
+    env->DeleteLocalRef(java_string);
+  }
+  return array;
+}
+
+static jlong NativeOpenAsset(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring asset_path,
+                             jint access_mode) {
+  ScopedUtfChars asset_path_utf8(env, asset_path);
+  if (asset_path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return 0;
+  }
+
+  if (access_mode != Asset::ACCESS_UNKNOWN && access_mode != Asset::ACCESS_RANDOM &&
+      access_mode != Asset::ACCESS_STREAMING && access_mode != Asset::ACCESS_BUFFER) {
+    jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
+    return 0;
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::unique_ptr<Asset> asset =
+      assetmanager->Open(asset_path_utf8.c_str(), static_cast<Asset::AccessMode>(access_mode));
+  if (!asset) {
+    jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
+    return 0;
+  }
+  return reinterpret_cast<jlong>(asset.release());
+}
+
+static jobject NativeOpenAssetFd(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring asset_path,
+                                 jlongArray out_offsets) {
+  ScopedUtfChars asset_path_utf8(env, asset_path);
+  if (asset_path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return nullptr;
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::unique_ptr<Asset> asset = assetmanager->Open(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM);
+  if (!asset) {
+    jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
+    return nullptr;
+  }
+  return ReturnParcelFileDescriptor(env, std::move(asset), out_offsets);
+}
+
+static jlong NativeOpenNonAsset(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint jcookie,
+                                jstring asset_path, jint access_mode) {
+  ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
+  ScopedUtfChars asset_path_utf8(env, asset_path);
+  if (asset_path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return 0;
+  }
+
+  if (access_mode != Asset::ACCESS_UNKNOWN && access_mode != Asset::ACCESS_RANDOM &&
+      access_mode != Asset::ACCESS_STREAMING && access_mode != Asset::ACCESS_BUFFER) {
+    jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
+    return 0;
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::unique_ptr<Asset> asset;
+  if (cookie != kInvalidCookie) {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie,
+                                       static_cast<Asset::AccessMode>(access_mode));
+  } else {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(),
+                                       static_cast<Asset::AccessMode>(access_mode));
+  }
+
+  if (!asset) {
+    jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
+    return 0;
+  }
+  return reinterpret_cast<jlong>(asset.release());
+}
+
+static jobject NativeOpenNonAssetFd(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint jcookie,
+                                    jstring asset_path, jlongArray out_offsets) {
+  ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
+  ScopedUtfChars asset_path_utf8(env, asset_path);
+  if (asset_path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return nullptr;
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::unique_ptr<Asset> asset;
+  if (cookie != kInvalidCookie) {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie, Asset::ACCESS_RANDOM);
+  } else {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM);
+  }
+
+  if (!asset) {
+    jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
+    return nullptr;
+  }
+  return ReturnParcelFileDescriptor(env, std::move(asset), out_offsets);
+}
+
+static jlong NativeOpenXmlAsset(JNIEnv* env, jobject /*clazz*/, jlong ptr, jint jcookie,
+                                jstring asset_path) {
+  ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
+  ScopedUtfChars asset_path_utf8(env, asset_path);
+  if (asset_path_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return 0;
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::unique_ptr<Asset> asset;
+  if (cookie != kInvalidCookie) {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie, Asset::ACCESS_RANDOM);
+  } else {
+    asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM, &cookie);
+  }
+
+  if (!asset) {
+    jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
+    return 0;
+  }
+
+  // May be nullptr.
+  const DynamicRefTable* dynamic_ref_table = assetmanager->GetDynamicRefTableForCookie(cookie);
+
+  std::unique_ptr<ResXMLTree> xml_tree = util::make_unique<ResXMLTree>(dynamic_ref_table);
+  status_t err = xml_tree->setTo(asset->getBuffer(true), asset->getLength(), true);
+  asset.reset();
+
+  if (err != NO_ERROR) {
+    jniThrowException(env, "java/io/FileNotFoundException", "Corrupt XML binary file");
+    return 0;
+  }
+  return reinterpret_cast<jlong>(xml_tree.release());
+}
+
+static jint NativeGetResourceValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
+                                   jshort density, jobject typed_value,
+                                   jboolean resolve_references) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Res_value value;
+  ResTable_config selected_config;
+  uint32_t flags;
+  ApkAssetsCookie cookie =
+      assetmanager->GetResource(static_cast<uint32_t>(resid), false /*may_be_bag*/,
+                                static_cast<uint16_t>(density), &value, &selected_config, &flags);
+  if (cookie == kInvalidCookie) {
+    return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+  }
+
+  uint32_t ref = static_cast<uint32_t>(resid);
+  if (resolve_references) {
+    cookie = assetmanager->ResolveReference(cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+    }
+  }
+  return CopyValue(env, cookie, value, ref, flags, &selected_config, typed_value);
+}
+
+static jint NativeGetResourceBagValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
+                                      jint bag_entry_id, jobject typed_value) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+  }
+
+  uint32_t type_spec_flags = bag->type_spec_flags;
+  ApkAssetsCookie cookie = kInvalidCookie;
+  const Res_value* bag_value = nullptr;
+  for (const ResolvedBag::Entry& entry : bag) {
+    if (entry.key == static_cast<uint32_t>(bag_entry_id)) {
+      cookie = entry.cookie;
+      bag_value = &entry.value;
+
+      // Keep searching (the old implementation did that).
+    }
+  }
+
+  if (cookie == kInvalidCookie) {
+    return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+  }
+
+  Res_value value = *bag_value;
+  uint32_t ref = static_cast<uint32_t>(resid);
+  ResTable_config selected_config;
+  cookie = assetmanager->ResolveReference(cookie, &value, &selected_config, &type_spec_flags, &ref);
+  if (cookie == kInvalidCookie) {
+    return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+  }
+  return CopyValue(env, cookie, value, ref, type_spec_flags, nullptr, typed_value);
+}
+
+static jintArray NativeGetStyleAttributes(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return nullptr;
+  }
+
+  jintArray array = env->NewIntArray(bag->entry_count);
+  if (env->ExceptionCheck()) {
+    return nullptr;
+  }
+
+  for (uint32_t i = 0; i < bag->entry_count; i++) {
+    jint attr_resid = bag->entries[i].key;
+    env->SetIntArrayRegion(array, i, 1, &attr_resid);
+  }
+  return array;
+}
+
+static jobjectArray NativeGetResourceStringArray(JNIEnv* env, jclass /*clazz*/, jlong ptr,
+                                                 jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return nullptr;
+  }
+
+  jobjectArray array = env->NewObjectArray(bag->entry_count, g_stringClass, nullptr);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  for (uint32_t i = 0; i < bag->entry_count; i++) {
+    const ResolvedBag::Entry& entry = bag->entries[i];
+
+    // Resolve any references to their final value.
+    Res_value value = entry.value;
+    ResTable_config selected_config;
+    uint32_t flags;
+    uint32_t ref;
+    ApkAssetsCookie cookie =
+        assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      return nullptr;
+    }
+
+    if (value.dataType == Res_value::TYPE_STRING) {
+      const ApkAssets* apk_assets = assetmanager->GetApkAssets()[cookie];
+      const ResStringPool* pool = apk_assets->GetLoadedArsc()->GetStringPool();
+
+      jstring java_string = nullptr;
+      size_t str_len;
+      const char* str_utf8 = pool->string8At(value.data, &str_len);
+      if (str_utf8 != nullptr) {
+        java_string = env->NewStringUTF(str_utf8);
+      } else {
+        const char16_t* str_utf16 = pool->stringAt(value.data, &str_len);
+        java_string = env->NewString(reinterpret_cast<const jchar*>(str_utf16), str_len);
+      }
+
+      // Check for errors creating the strings (if malformed or no memory).
+      if (env->ExceptionCheck()) {
+        return nullptr;
+      }
+
+      env->SetObjectArrayElement(array, i, java_string);
+
+      // If we have a large amount of string in our array, we might overflow the
+      // local reference table of the VM.
+      env->DeleteLocalRef(java_string);
+    }
+  }
+  return array;
+}
+
+static jintArray NativeGetResourceStringArrayInfo(JNIEnv* env, jclass /*clazz*/, jlong ptr,
+                                                  jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return nullptr;
+  }
+
+  jintArray array = env->NewIntArray(bag->entry_count * 2);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(array, nullptr));
+  if (buffer == nullptr) {
+    return nullptr;
+  }
+
+  for (size_t i = 0; i < bag->entry_count; i++) {
+    const ResolvedBag::Entry& entry = bag->entries[i];
+    Res_value value = entry.value;
+    ResTable_config selected_config;
+    uint32_t flags;
+    uint32_t ref;
+    ApkAssetsCookie cookie =
+        assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      env->ReleasePrimitiveArrayCritical(array, buffer, JNI_ABORT);
+      return nullptr;
+    }
+
+    jint string_index = -1;
+    if (value.dataType == Res_value::TYPE_STRING) {
+      string_index = static_cast<jint>(value.data);
+    }
+
+    buffer[i * 2] = ApkAssetsCookieToJavaCookie(cookie);
+    buffer[(i * 2) + 1] = string_index;
+  }
+  env->ReleasePrimitiveArrayCritical(array, buffer, 0);
+  return array;
+}
+
+static jintArray NativeGetResourceIntArray(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return nullptr;
+  }
+
+  jintArray array = env->NewIntArray(bag->entry_count);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(array, nullptr));
+  if (buffer == nullptr) {
+    return nullptr;
+  }
+
+  for (size_t i = 0; i < bag->entry_count; i++) {
+    const ResolvedBag::Entry& entry = bag->entries[i];
+    Res_value value = entry.value;
+    ResTable_config selected_config;
+    uint32_t flags;
+    uint32_t ref;
+    ApkAssetsCookie cookie =
+        assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      env->ReleasePrimitiveArrayCritical(array, buffer, JNI_ABORT);
+      return nullptr;
+    }
+
+    if (value.dataType >= Res_value::TYPE_FIRST_INT && value.dataType <= Res_value::TYPE_LAST_INT) {
+      buffer[i] = static_cast<jint>(value.data);
+    }
+  }
+  env->ReleasePrimitiveArrayCritical(array, buffer, 0);
+  return array;
+}
+
+static jint NativeGetResourceArraySize(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return -1;
+  }
+  return static_cast<jint>(bag->entry_count);
+}
+
+static jint NativeGetResourceArray(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
+                                   jintArray out_data) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
+  if (bag == nullptr) {
+    return -1;
+  }
+
+  const jsize out_data_length = env->GetArrayLength(out_data);
+  if (env->ExceptionCheck()) {
+    return -1;
+  }
+
+  if (static_cast<jsize>(bag->entry_count) > out_data_length * STYLE_NUM_ENTRIES) {
+    jniThrowException(env, "java/lang/IllegalArgumentException", "Input array is not large enough");
+    return -1;
+  }
+
+  jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_data, nullptr));
+  if (buffer == nullptr) {
+    return -1;
+  }
+
+  jint* cursor = buffer;
+  for (size_t i = 0; i < bag->entry_count; i++) {
+    const ResolvedBag::Entry& entry = bag->entries[i];
+    Res_value value = entry.value;
+    ResTable_config selected_config;
+    selected_config.density = 0;
+    uint32_t flags = bag->type_spec_flags;
+    uint32_t ref;
+    ApkAssetsCookie cookie =
+        assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      env->ReleasePrimitiveArrayCritical(out_data, buffer, JNI_ABORT);
+      return -1;
+    }
+
+    // Deal with the special @null value -- it turns back to TYPE_NULL.
+    if (value.dataType == Res_value::TYPE_REFERENCE && value.data == 0) {
+      value.dataType = Res_value::TYPE_NULL;
+      value.data = Res_value::DATA_NULL_UNDEFINED;
+    }
+
+    cursor[STYLE_TYPE] = static_cast<jint>(value.dataType);
+    cursor[STYLE_DATA] = static_cast<jint>(value.data);
+    cursor[STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
+    cursor[STYLE_RESOURCE_ID] = static_cast<jint>(ref);
+    cursor[STYLE_CHANGING_CONFIGURATIONS] = static_cast<jint>(flags);
+    cursor[STYLE_DENSITY] = static_cast<jint>(selected_config.density);
+    cursor += STYLE_NUM_ENTRIES;
+  }
+  env->ReleasePrimitiveArrayCritical(out_data, buffer, 0);
+  return static_cast<jint>(bag->entry_count);
+}
+
+static jint NativeGetResourceIdentifier(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring name,
+                                        jstring def_type, jstring def_package) {
+  ScopedUtfChars name_utf8(env, name);
+  if (name_utf8.c_str() == nullptr) {
+    // This will throw NPE.
+    return 0;
+  }
+
+  std::string type;
+  if (def_type != nullptr) {
+    ScopedUtfChars type_utf8(env, def_type);
+    CHECK(type_utf8.c_str() != nullptr);
+    type = type_utf8.c_str();
+  }
+
+  std::string package;
+  if (def_package != nullptr) {
+    ScopedUtfChars package_utf8(env, def_package);
+    CHECK(package_utf8.c_str() != nullptr);
+    package = package_utf8.c_str();
+  }
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  return static_cast<jint>(assetmanager->GetResourceId(name_utf8.c_str(), type, package));
+}
+
+static jstring NativeGetResourceName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  AssetManager2::ResourceName name;
+  if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
+    return nullptr;
+  }
+
+  std::string result;
+  if (name.package != nullptr) {
+    result.append(name.package, name.package_len);
+  }
+
+  if (name.type != nullptr || name.type16 != nullptr) {
+    if (!result.empty()) {
+      result += ":";
+    }
+
+    if (name.type != nullptr) {
+      result.append(name.type, name.type_len);
+    } else {
+      result += util::Utf16ToUtf8(StringPiece16(name.type16, name.type_len));
+    }
+  }
+
+  if (name.entry != nullptr || name.entry16 != nullptr) {
+    if (!result.empty()) {
+      result += "/";
+    }
+
+    if (name.entry != nullptr) {
+      result.append(name.entry, name.entry_len);
+    } else {
+      result += util::Utf16ToUtf8(StringPiece16(name.entry16, name.entry_len));
+    }
+  }
+  return env->NewStringUTF(result.c_str());
+}
+
+static jstring NativeGetResourcePackageName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  AssetManager2::ResourceName name;
+  if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
+    return nullptr;
+  }
+
+  if (name.package != nullptr) {
+    return env->NewStringUTF(name.package);
+  }
+  return nullptr;
+}
+
+static jstring NativeGetResourceTypeName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  AssetManager2::ResourceName name;
+  if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
+    return nullptr;
+  }
+
+  if (name.type != nullptr) {
+    return env->NewStringUTF(name.type);
+  } else if (name.type16 != nullptr) {
+    return env->NewString(reinterpret_cast<const jchar*>(name.type16), name.type_len);
+  }
+  return nullptr;
+}
+
+static jstring NativeGetResourceEntryName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  AssetManager2::ResourceName name;
+  if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
+    return nullptr;
+  }
+
+  if (name.entry != nullptr) {
+    return env->NewStringUTF(name.entry);
+  } else if (name.entry16 != nullptr) {
+    return env->NewString(reinterpret_cast<const jchar*>(name.entry16), name.entry_len);
+  }
+  return nullptr;
+}
+
+static jobjectArray NativeGetLocales(JNIEnv* env, jclass /*class*/, jlong ptr,
+                                     jboolean exclude_system) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::set<std::string> locales =
+      assetmanager->GetResourceLocales(exclude_system, true /*merge_equivalent_languages*/);
+
+  jobjectArray array = env->NewObjectArray(locales.size(), g_stringClass, nullptr);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  size_t idx = 0;
+  for (const std::string& locale : locales) {
+    jstring java_string = env->NewStringUTF(locale.c_str());
+    if (java_string == nullptr) {
+      return nullptr;
+    }
+    env->SetObjectArrayElement(array, idx++, java_string);
+    env->DeleteLocalRef(java_string);
+  }
+  return array;
+}
+
+static jobject ConstructConfigurationObject(JNIEnv* env, const ResTable_config& config) {
+  jobject result =
+      env->NewObject(gConfigurationOffsets.classObject, gConfigurationOffsets.constructor);
+  if (result == nullptr) {
+    return nullptr;
+  }
+
+  env->SetIntField(result, gConfigurationOffsets.mSmallestScreenWidthDpOffset,
+                   config.smallestScreenWidthDp);
+  env->SetIntField(result, gConfigurationOffsets.mScreenWidthDpOffset, config.screenWidthDp);
+  env->SetIntField(result, gConfigurationOffsets.mScreenHeightDpOffset, config.screenHeightDp);
+  return result;
+}
+
+static jobjectArray NativeGetSizeConfigurations(JNIEnv* env, jclass /*clazz*/, jlong ptr) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  std::set<ResTable_config> configurations =
+      assetmanager->GetResourceConfigurations(true /*exclude_system*/, false /*exclude_mipmap*/);
+
+  jobjectArray array =
+      env->NewObjectArray(configurations.size(), gConfigurationOffsets.classObject, nullptr);
+  if (array == nullptr) {
+    return nullptr;
+  }
+
+  size_t idx = 0;
+  for (const ResTable_config& configuration : configurations) {
+    jobject java_configuration = ConstructConfigurationObject(env, configuration);
+    if (java_configuration == nullptr) {
+      return nullptr;
+    }
+
+    env->SetObjectArrayElement(array, idx++, java_configuration);
+    env->DeleteLocalRef(java_configuration);
+  }
+  return array;
+}
+
+static void NativeApplyStyle(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
+                             jint def_style_attr, jint def_style_resid, jlong xml_parser_ptr,
+                             jintArray java_attrs, jlong out_values_ptr, jlong out_indices_ptr) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  CHECK(theme->GetAssetManager() == &(*assetmanager));
+  (void) assetmanager;
+
+  ResXMLParser* xml_parser = reinterpret_cast<ResXMLParser*>(xml_parser_ptr);
+  uint32_t* out_values = reinterpret_cast<uint32_t*>(out_values_ptr);
+  uint32_t* out_indices = reinterpret_cast<uint32_t*>(out_indices_ptr);
+
+  jsize attrs_len = env->GetArrayLength(java_attrs);
+  jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
+  if (attrs == nullptr) {
+    return;
+  }
+
+  ApplyStyle(theme, xml_parser, static_cast<uint32_t>(def_style_attr),
+             static_cast<uint32_t>(def_style_resid), reinterpret_cast<uint32_t*>(attrs), attrs_len,
+             out_values, out_indices);
+  env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+}
+
+static jboolean NativeResolveAttrs(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
+                                   jint def_style_attr, jint def_style_resid, jintArray java_values,
+                                   jintArray java_attrs, jintArray out_java_values,
+                                   jintArray out_java_indices) {
+  const jsize attrs_len = env->GetArrayLength(java_attrs);
+  const jsize out_values_len = env->GetArrayLength(out_java_values);
+  if (out_values_len < (attrs_len * STYLE_NUM_ENTRIES)) {
+    jniThrowException(env, "java/lang/IndexOutOfBoundsException", "outValues too small");
+    return JNI_FALSE;
+  }
+
+  jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
+  if (attrs == nullptr) {
+    return JNI_FALSE;
+  }
+
+  jint* values = nullptr;
+  jsize values_len = 0;
+  if (java_values != nullptr) {
+    values_len = env->GetArrayLength(java_values);
+    values = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_values, nullptr));
+    if (values == nullptr) {
+      env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+      return JNI_FALSE;
+    }
+  }
+
+  jint* out_values =
+      reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_values, nullptr));
+  if (out_values == nullptr) {
+    env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+    if (values != nullptr) {
+      env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
+    }
+    return JNI_FALSE;
+  }
+
+  jint* out_indices = nullptr;
+  if (out_java_indices != nullptr) {
+    jsize out_indices_len = env->GetArrayLength(out_java_indices);
+    if (out_indices_len > attrs_len) {
+      out_indices =
+          reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_indices, nullptr));
+      if (out_indices == nullptr) {
+        env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+        if (values != nullptr) {
+          env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
+        }
+        env->ReleasePrimitiveArrayCritical(out_java_values, out_values, JNI_ABORT);
+        return JNI_FALSE;
+      }
+    }
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  CHECK(theme->GetAssetManager() == &(*assetmanager));
+  (void) assetmanager;
+
+  bool result = ResolveAttrs(
+      theme, static_cast<uint32_t>(def_style_attr), static_cast<uint32_t>(def_style_resid),
+      reinterpret_cast<uint32_t*>(values), values_len, reinterpret_cast<uint32_t*>(attrs),
+      attrs_len, reinterpret_cast<uint32_t*>(out_values), reinterpret_cast<uint32_t*>(out_indices));
+  if (out_indices != nullptr) {
+    env->ReleasePrimitiveArrayCritical(out_java_indices, out_indices, 0);
+  }
+
+  env->ReleasePrimitiveArrayCritical(out_java_values, out_values, 0);
+  if (values != nullptr) {
+    env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
+  }
+  env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+  return result ? JNI_TRUE : JNI_FALSE;
+}
+
+static jboolean NativeRetrieveAttributes(JNIEnv* env, jclass /*clazz*/, jlong ptr,
+                                         jlong xml_parser_ptr, jintArray java_attrs,
+                                         jintArray out_java_values, jintArray out_java_indices) {
+  const jsize attrs_len = env->GetArrayLength(java_attrs);
+  const jsize out_values_len = env->GetArrayLength(out_java_values);
+  if (out_values_len < (attrs_len * STYLE_NUM_ENTRIES)) {
+    jniThrowException(env, "java/lang/IndexOutOfBoundsException", "outValues too small");
+    return JNI_FALSE;
+  }
+
+  jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
+  if (attrs == nullptr) {
+    return JNI_FALSE;
+  }
+
+  jint* out_values =
+      reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_values, nullptr));
+  if (out_values == nullptr) {
+    env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+    return JNI_FALSE;
+  }
+
+  jint* out_indices = nullptr;
+  if (out_java_indices != nullptr) {
+    jsize out_indices_len = env->GetArrayLength(out_java_indices);
+    if (out_indices_len > attrs_len) {
+      out_indices =
+          reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_indices, nullptr));
+      if (out_indices == nullptr) {
+        env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+        env->ReleasePrimitiveArrayCritical(out_java_values, out_values, JNI_ABORT);
+        return JNI_FALSE;
+      }
+    }
+  }
+
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  ResXMLParser* xml_parser = reinterpret_cast<ResXMLParser*>(xml_parser_ptr);
+
+  bool result = RetrieveAttributes(assetmanager.get(), xml_parser,
+                                   reinterpret_cast<uint32_t*>(attrs), attrs_len,
+                                   reinterpret_cast<uint32_t*>(out_values),
+                                   reinterpret_cast<uint32_t*>(out_indices));
+
+  if (out_indices != nullptr) {
+    env->ReleasePrimitiveArrayCritical(out_java_indices, out_indices, 0);
+  }
+  env->ReleasePrimitiveArrayCritical(out_java_values, out_values, 0);
+  env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
+  return result ? JNI_TRUE : JNI_FALSE;
+}
+
+static jlong NativeThemeCreate(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  return reinterpret_cast<jlong>(assetmanager->NewTheme().release());
+}
+
+static void NativeThemeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong theme_ptr) {
+  delete reinterpret_cast<Theme*>(theme_ptr);
+}
+
+static void NativeThemeApplyStyle(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
+                                  jint resid, jboolean force) {
+  // AssetManager is accessed via the theme, so grab an explicit lock here.
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  CHECK(theme->GetAssetManager() == &(*assetmanager));
+  (void) assetmanager;
+  theme->ApplyStyle(static_cast<uint32_t>(resid), force);
+
+  // TODO(adamlesinski): Consider surfacing exception when result is failure.
+  // CTS currently expects no exceptions from this method.
+  // std::string error_msg = StringPrintf("Failed to apply style 0x%08x to theme", resid);
+  // jniThrowException(env, "java/lang/IllegalArgumentException", error_msg.c_str());
+}
+
+static void NativeThemeCopy(JNIEnv* env, jclass /*clazz*/, jlong dst_theme_ptr,
+                            jlong src_theme_ptr) {
+  Theme* dst_theme = reinterpret_cast<Theme*>(dst_theme_ptr);
+  Theme* src_theme = reinterpret_cast<Theme*>(src_theme_ptr);
+  if (!dst_theme->SetTo(*src_theme)) {
+    jniThrowException(env, "java/lang/IllegalArgumentException",
+                      "Themes are from different AssetManagers");
+  }
+}
+
+static void NativeThemeClear(JNIEnv* /*env*/, jclass /*clazz*/, jlong theme_ptr) {
+  reinterpret_cast<Theme*>(theme_ptr)->Clear();
+}
+
+static jint NativeThemeGetAttributeValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
+                                         jint resid, jobject typed_value,
+                                         jboolean resolve_references) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  CHECK(theme->GetAssetManager() == &(*assetmanager));
+  (void) assetmanager;
+
+  Res_value value;
+  uint32_t flags;
+  ApkAssetsCookie cookie = theme->GetAttribute(static_cast<uint32_t>(resid), &value, &flags);
+  if (cookie == kInvalidCookie) {
+    return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+  }
+
+  uint32_t ref = 0u;
+  if (resolve_references) {
+    ResTable_config selected_config;
+    cookie =
+        theme->GetAssetManager()->ResolveReference(cookie, &value, &selected_config, &flags, &ref);
+    if (cookie == kInvalidCookie) {
+      return ApkAssetsCookieToJavaCookie(kInvalidCookie);
+    }
+  }
+  return CopyValue(env, cookie, value, ref, flags, nullptr, typed_value);
+}
+
+static void NativeThemeDump(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
+                            jint priority, jstring tag, jstring prefix) {
+  ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  CHECK(theme->GetAssetManager() == &(*assetmanager));
+  (void) assetmanager;
+  (void) theme;
+  (void) priority;
+  (void) tag;
+  (void) prefix;
+}
+
+static jint NativeThemeGetChangingConfigurations(JNIEnv* /*env*/, jclass /*clazz*/,
+                                                 jlong theme_ptr) {
+  Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
+  return static_cast<jint>(theme->GetChangingConfigurations());
+}
+
+static void NativeAssetDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
+  delete reinterpret_cast<Asset*>(asset_ptr);
+}
+
+static jint NativeAssetReadChar(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
+  Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
+  uint8_t b;
+  ssize_t res = asset->read(&b, sizeof(b));
+  return res == sizeof(b) ? static_cast<jint>(b) : -1;
+}
+
+static jint NativeAssetRead(JNIEnv* env, jclass /*clazz*/, jlong asset_ptr, jbyteArray java_buffer,
+                            jint offset, jint len) {
+  if (len == 0) {
+    return 0;
+  }
+
+  jsize buffer_len = env->GetArrayLength(java_buffer);
+  if (offset < 0 || offset >= buffer_len || len < 0 || len > buffer_len ||
+      offset > buffer_len - len) {
+    jniThrowException(env, "java/lang/IndexOutOfBoundsException", "");
+    return -1;
+  }
+
+  ScopedByteArrayRW byte_array(env, java_buffer);
+  if (byte_array.get() == nullptr) {
+    return -1;
+  }
+
+  Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
+  ssize_t res = asset->read(byte_array.get() + offset, len);
+  if (res < 0) {
+    jniThrowException(env, "java/io/IOException", "");
+    return -1;
+  }
+  return res > 0 ? static_cast<jint>(res) : -1;
+}
+
+static jlong NativeAssetSeek(JNIEnv* env, jclass /*clazz*/, jlong asset_ptr, jlong offset,
+                             jint whence) {
+  Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
+  return static_cast<jlong>(asset->seek(
+      static_cast<off64_t>(offset), (whence > 0 ? SEEK_END : (whence < 0 ? SEEK_SET : SEEK_CUR))));
+}
+
+static jlong NativeAssetGetLength(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
+  Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
+  return static_cast<jlong>(asset->getLength());
+}
+
+static jlong NativeAssetGetRemainingLength(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
+  Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
+  return static_cast<jlong>(asset->getRemainingLength());
+}
+
+// ----------------------------------------------------------------------------
+
+// JNI registration.
+static const JNINativeMethod gAssetManagerMethods[] = {
+    // AssetManager setup methods.
+    {"nativeCreate", "()J", (void*)NativeCreate},
+    {"nativeDestroy", "(J)V", (void*)NativeDestroy},
+    {"nativeSetApkAssets", "(J[Landroid/content/res/ApkAssets;Z)V", (void*)NativeSetApkAssets},
+    {"nativeSetConfiguration", "(JIILjava/lang/String;IIIIIIIIIIIIIII)V",
+     (void*)NativeSetConfiguration},
+    {"nativeGetAssignedPackageIdentifiers", "(J)Landroid/util/SparseArray;",
+     (void*)NativeGetAssignedPackageIdentifiers},
+
+    // AssetManager file methods.
+    {"nativeList", "(JLjava/lang/String;)[Ljava/lang/String;", (void*)NativeList},
+    {"nativeOpenAsset", "(JLjava/lang/String;I)J", (void*)NativeOpenAsset},
+    {"nativeOpenAssetFd", "(JLjava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
+     (void*)NativeOpenAssetFd},
+    {"nativeOpenNonAsset", "(JILjava/lang/String;I)J", (void*)NativeOpenNonAsset},
+    {"nativeOpenNonAssetFd", "(JILjava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
+     (void*)NativeOpenNonAssetFd},
+    {"nativeOpenXmlAsset", "(JILjava/lang/String;)J", (void*)NativeOpenXmlAsset},
+
+    // AssetManager resource methods.
+    {"nativeGetResourceValue", "(JISLandroid/util/TypedValue;Z)I", (void*)NativeGetResourceValue},
+    {"nativeGetResourceBagValue", "(JIILandroid/util/TypedValue;)I",
+     (void*)NativeGetResourceBagValue},
+    {"nativeGetStyleAttributes", "(JI)[I", (void*)NativeGetStyleAttributes},
+    {"nativeGetResourceStringArray", "(JI)[Ljava/lang/String;",
+     (void*)NativeGetResourceStringArray},
+    {"nativeGetResourceStringArrayInfo", "(JI)[I", (void*)NativeGetResourceStringArrayInfo},
+    {"nativeGetResourceIntArray", "(JI)[I", (void*)NativeGetResourceIntArray},
+    {"nativeGetResourceArraySize", "(JI)I", (void*)NativeGetResourceArraySize},
+    {"nativeGetResourceArray", "(JI[I)I", (void*)NativeGetResourceArray},
+
+    // AssetManager resource name/ID methods.
+    {"nativeGetResourceIdentifier", "(JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)I",
+     (void*)NativeGetResourceIdentifier},
+    {"nativeGetResourceName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceName},
+    {"nativeGetResourcePackageName", "(JI)Ljava/lang/String;", (void*)NativeGetResourcePackageName},
+    {"nativeGetResourceTypeName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceTypeName},
+    {"nativeGetResourceEntryName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceEntryName},
+    {"nativeGetLocales", "(JZ)[Ljava/lang/String;", (void*)NativeGetLocales},
+    {"nativeGetSizeConfigurations", "(J)[Landroid/content/res/Configuration;",
+     (void*)NativeGetSizeConfigurations},
+
+    // Style attribute related methods.
+    {"nativeApplyStyle", "(JJIIJ[IJJ)V", (void*)NativeApplyStyle},
+    {"nativeResolveAttrs", "(JJII[I[I[I[I)Z", (void*)NativeResolveAttrs},
+    {"nativeRetrieveAttributes", "(JJ[I[I[I)Z", (void*)NativeRetrieveAttributes},
+
+    // Theme related methods.
+    {"nativeThemeCreate", "(J)J", (void*)NativeThemeCreate},
+    {"nativeThemeDestroy", "(J)V", (void*)NativeThemeDestroy},
+    {"nativeThemeApplyStyle", "(JJIZ)V", (void*)NativeThemeApplyStyle},
+    {"nativeThemeCopy", "(JJ)V", (void*)NativeThemeCopy},
+    {"nativeThemeClear", "(J)V", (void*)NativeThemeClear},
+    {"nativeThemeGetAttributeValue", "(JJILandroid/util/TypedValue;Z)I",
+     (void*)NativeThemeGetAttributeValue},
+    {"nativeThemeDump", "(JJILjava/lang/String;Ljava/lang/String;)V", (void*)NativeThemeDump},
+    {"nativeThemeGetChangingConfigurations", "(J)I", (void*)NativeThemeGetChangingConfigurations},
+
+    // AssetInputStream methods.
+    {"nativeAssetDestroy", "(J)V", (void*)NativeAssetDestroy},
+    {"nativeAssetReadChar", "(J)I", (void*)NativeAssetReadChar},
+    {"nativeAssetRead", "(J[BII)I", (void*)NativeAssetRead},
+    {"nativeAssetSeek", "(JJI)J", (void*)NativeAssetSeek},
+    {"nativeAssetGetLength", "(J)J", (void*)NativeAssetGetLength},
+    {"nativeAssetGetRemainingLength", "(J)J", (void*)NativeAssetGetRemainingLength},
+
+    // System/idmap related methods.
+    {"nativeVerifySystemIdmaps", "()V", (void*)NativeVerifySystemIdmaps},
+
+    // Global management/debug methods.
+    {"getGlobalAssetCount", "()I", (void*)NativeGetGlobalAssetCount},
+    {"getAssetAllocations", "()Ljava/lang/String;", (void*)NativeGetAssetAllocations},
+    {"getGlobalAssetManagerCount", "()I", (void*)NativeGetGlobalAssetManagerCount},
+};
+
+int register_android_content_AssetManager(JNIEnv* env) {
+  jclass apk_assets_class = FindClassOrDie(env, "android/content/res/ApkAssets");
+  gApkAssetsFields.native_ptr = GetFieldIDOrDie(env, apk_assets_class, "mNativePtr", "J");
+
+  jclass typedValue = FindClassOrDie(env, "android/util/TypedValue");
+  gTypedValueOffsets.mType = GetFieldIDOrDie(env, typedValue, "type", "I");
+  gTypedValueOffsets.mData = GetFieldIDOrDie(env, typedValue, "data", "I");
+  gTypedValueOffsets.mString =
+      GetFieldIDOrDie(env, typedValue, "string", "Ljava/lang/CharSequence;");
+  gTypedValueOffsets.mAssetCookie = GetFieldIDOrDie(env, typedValue, "assetCookie", "I");
+  gTypedValueOffsets.mResourceId = GetFieldIDOrDie(env, typedValue, "resourceId", "I");
+  gTypedValueOffsets.mChangingConfigurations =
+      GetFieldIDOrDie(env, typedValue, "changingConfigurations", "I");
+  gTypedValueOffsets.mDensity = GetFieldIDOrDie(env, typedValue, "density", "I");
+
+  jclass assetFd = FindClassOrDie(env, "android/content/res/AssetFileDescriptor");
+  gAssetFileDescriptorOffsets.mFd =
+      GetFieldIDOrDie(env, assetFd, "mFd", "Landroid/os/ParcelFileDescriptor;");
+  gAssetFileDescriptorOffsets.mStartOffset = GetFieldIDOrDie(env, assetFd, "mStartOffset", "J");
+  gAssetFileDescriptorOffsets.mLength = GetFieldIDOrDie(env, assetFd, "mLength", "J");
+
+  jclass assetManager = FindClassOrDie(env, "android/content/res/AssetManager");
+  gAssetManagerOffsets.mObject = GetFieldIDOrDie(env, assetManager, "mObject", "J");
+
+  jclass stringClass = FindClassOrDie(env, "java/lang/String");
+  g_stringClass = MakeGlobalRefOrDie(env, stringClass);
+
+  jclass sparseArrayClass = FindClassOrDie(env, "android/util/SparseArray");
+  gSparseArrayOffsets.classObject = MakeGlobalRefOrDie(env, sparseArrayClass);
+  gSparseArrayOffsets.constructor =
+      GetMethodIDOrDie(env, gSparseArrayOffsets.classObject, "<init>", "()V");
+  gSparseArrayOffsets.put =
+      GetMethodIDOrDie(env, gSparseArrayOffsets.classObject, "put", "(ILjava/lang/Object;)V");
+
+  jclass configurationClass = FindClassOrDie(env, "android/content/res/Configuration");
+  gConfigurationOffsets.classObject = MakeGlobalRefOrDie(env, configurationClass);
+  gConfigurationOffsets.constructor = GetMethodIDOrDie(env, configurationClass, "<init>", "()V");
+  gConfigurationOffsets.mSmallestScreenWidthDpOffset =
+      GetFieldIDOrDie(env, configurationClass, "smallestScreenWidthDp", "I");
+  gConfigurationOffsets.mScreenWidthDpOffset =
+      GetFieldIDOrDie(env, configurationClass, "screenWidthDp", "I");
+  gConfigurationOffsets.mScreenHeightDpOffset =
+      GetFieldIDOrDie(env, configurationClass, "screenHeightDp", "I");
+
+  return RegisterMethodsOrDie(env, "android/content/res/AssetManager", gAssetManagerMethods,
+                              NELEM(gAssetManagerMethods));
 }
 
 }; // namespace android
diff --git a/core/jni/include/android_runtime/android_util_AssetManager.h b/core/jni/include/android_runtime/android_util_AssetManager.h
index 8dd9337..2c1e357 100644
--- a/core/jni/include/android_runtime/android_util_AssetManager.h
+++ b/core/jni/include/android_runtime/android_util_AssetManager.h
@@ -14,17 +14,20 @@
  * limitations under the License.
  */
 
-#ifndef android_util_AssetManager_H
-#define android_util_AssetManager_H
+#ifndef ANDROID_RUNTIME_ASSETMANAGER_H
+#define ANDROID_RUNTIME_ASSETMANAGER_H
 
-#include <androidfw/AssetManager.h>
+#include "androidfw/AssetManager2.h"
+#include "androidfw/MutexGuard.h"
 
 #include "jni.h"
 
 namespace android {
 
-extern AssetManager* assetManagerForJavaObject(JNIEnv* env, jobject assetMgr);
+extern AAssetManager* NdkAssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager);
+extern Guarded<AssetManager2>* AssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager);
+extern Guarded<AssetManager2>* AssetManagerForNdkAssetManager(AAssetManager* assetmanager);
 
-}
+}  // namespace android
 
-#endif
+#endif  // ANDROID_RUNTIME_ASSETMANAGER_H
diff --git a/core/proto/android/app/notification.proto b/core/proto/android/app/notification.proto
index 5376b0e..379a4ae 100644
--- a/core/proto/android/app/notification.proto
+++ b/core/proto/android/app/notification.proto
@@ -18,6 +18,8 @@
 option java_package = "android.app";
 option java_multiple_files = true;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.app;
 
 /**
@@ -25,13 +27,15 @@
  * Deprecated fields are not included in the proto.
  */
 message NotificationProto {
-    optional string channel_id = 1;
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
+    optional string channel_id = 1 [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional bool has_ticker_text = 2;
     optional int32 flags = 3;
     optional int32 color = 4;
-    optional string category = 5;
-    optional string group_key = 6;
-    optional string sort_key = 7;
+    optional string category = 5 [ (.android.privacy).dest = DEST_EXPLICIT ];
+    optional string group_key = 6 [ (.android.privacy).dest = DEST_EXPLICIT ];
+    optional string sort_key = 7 [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional int32 action_length = 8;
 
     // If this field is not set, then the value is unknown.
diff --git a/core/proto/android/app/profilerinfo.proto b/core/proto/android/app/profilerinfo.proto
index ca1b935..6b28318 100644
--- a/core/proto/android/app/profilerinfo.proto
+++ b/core/proto/android/app/profilerinfo.proto
@@ -18,12 +18,16 @@
 option java_package = "android.app";
 option java_multiple_files = true;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.app;
 
 /**
  * An android.app.ProfilerInfo object.
  */
 message ProfilerInfoProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string profile_file = 1;
     optional int32 profile_fd = 2;
     optional int32 sampling_interval = 3;
diff --git a/core/proto/android/content/configuration.proto b/core/proto/android/content/configuration.proto
index 111b27f..a62d56c 100644
--- a/core/proto/android/content/configuration.proto
+++ b/core/proto/android/content/configuration.proto
@@ -22,11 +22,14 @@
 
 import "frameworks/base/core/proto/android/app/window_configuration.proto";
 import "frameworks/base/core/proto/android/content/locale.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 /**
  * An android resource configuration.
  */
 message ConfigurationProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional float font_scale = 1;
   optional uint32 mcc = 2;
   optional uint32 mnc = 3;
diff --git a/core/proto/android/content/featureinfo.proto b/core/proto/android/content/featureinfo.proto
index a750120..6878f0e 100644
--- a/core/proto/android/content/featureinfo.proto
+++ b/core/proto/android/content/featureinfo.proto
@@ -16,14 +16,20 @@
 
 syntax = "proto2";
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_package = "android.content.pm";
 option java_multiple_files = true;
 
 package android.content.pm;
 
 message FeatureInfoProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
+    // Some hard coded feature name
     optional string name = 1;
     optional int32 version = 2;
+    // String representation of reqGlEsVersion.
     optional string gles_version = 3;
     optional int32 flags = 4;
 }
diff --git a/core/proto/android/content/intent.proto b/core/proto/android/content/intent.proto
index 3e5265a..c25b46d 100644
--- a/core/proto/android/content/intent.proto
+++ b/core/proto/android/content/intent.proto
@@ -21,9 +21,12 @@
 option java_multiple_files = true;
 
 import "frameworks/base/core/proto/android/os/patternmatcher.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 // Next Tag: 13
 message IntentProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     enum DockState {
         // Used as an int value for Intent#EXTRA_DOCK_STATE to represent that
         // the phone is not in any dock.
@@ -48,13 +51,13 @@
 
     optional string action = 1;
     repeated string categories = 2;
-    optional string data = 3;
+    optional string data = 3  [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional string type = 4;
     optional string flag = 5;
     optional string package = 6;
     optional string component = 7;
     optional string source_bounds = 8;
-    optional string clip_data = 9;
+    optional string clip_data = 9  [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional string extras = 10;
     optional int32 content_user_hint = 11;
     optional string selector = 12;
@@ -62,9 +65,11 @@
 
 // Next Tag: 11
 message IntentFilterProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     repeated string actions = 1;
     repeated string categories = 2;
-    repeated string data_schemes = 3;
+    repeated string data_schemes = 3  [ (.android.privacy).dest = DEST_EXPLICIT ];
     repeated android.os.PatternMatcherProto data_scheme_specs = 4;
     repeated AuthorityEntryProto data_authorities = 5;
     repeated android.os.PatternMatcherProto data_paths = 6;
@@ -75,6 +80,8 @@
 }
 
 message AuthorityEntryProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string host = 1;
     optional bool wild = 2;
     optional int32 port = 3;
diff --git a/core/proto/android/content/locale.proto b/core/proto/android/content/locale.proto
index f0de31c..2be3ab9 100644
--- a/core/proto/android/content/locale.proto
+++ b/core/proto/android/content/locale.proto
@@ -18,9 +18,13 @@
 option java_package = "android.content";
 option java_multiple_files = true;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.content;
 
 message LocaleProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string language = 1;
   optional string country = 2;
   optional string variant = 3;
diff --git a/core/proto/android/content/package_item_info.proto b/core/proto/android/content/package_item_info.proto
index 8470159..6e99bec 100644
--- a/core/proto/android/content/package_item_info.proto
+++ b/core/proto/android/content/package_item_info.proto
@@ -18,9 +18,13 @@
 option java_package = "android.content.pm";
 option java_multiple_files = true;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.content.pm;
 
 message PackageItemInfoProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string name = 1;
     optional string package_name = 2;
     optional int32 label_res = 3;
@@ -31,6 +35,8 @@
 
 // Proto of android.content.pm.ApplicationInfo which extends PackageItemInfo
 message ApplicationInfoProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional PackageItemInfoProto package = 1;
     optional string permission = 2;
     optional string process_name = 3;
@@ -48,6 +54,8 @@
     repeated string split_class_loader_names = 15;
 
     message Version {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional bool enabled = 1;
         optional int32 min_sdk_version = 2;
         optional int32 target_sdk_version = 3;
@@ -57,6 +65,8 @@
     optional Version version = 16;
 
     message Detail {
+        option (.android.msg_privacy).dest = DEST_EXPLICIT;
+
         optional string class_name = 1;
         optional string task_affinity = 2;
         optional int32 requires_smallest_width_dp = 3;
diff --git a/core/proto/android/graphics/point.proto b/core/proto/android/graphics/point.proto
index 5ae17cb..035b9fe 100644
--- a/core/proto/android/graphics/point.proto
+++ b/core/proto/android/graphics/point.proto
@@ -17,9 +17,13 @@
 syntax = "proto2";
 package android.graphics;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 
 message PointProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 x = 1;
   optional int32 y = 2;
 }
diff --git a/core/proto/android/graphics/rect.proto b/core/proto/android/graphics/rect.proto
index 562ffce..eb403fe 100644
--- a/core/proto/android/graphics/rect.proto
+++ b/core/proto/android/graphics/rect.proto
@@ -17,9 +17,13 @@
 syntax = "proto2";
 package android.graphics;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 
 message RectProto {
+  option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 left = 1;
   optional int32 top = 2;
   optional int32 right = 3;
diff --git a/core/proto/android/os/cpufreq.proto b/core/proto/android/os/cpufreq.proto
index a8da0bf..8481ffc 100644
--- a/core/proto/android/os/cpufreq.proto
+++ b/core/proto/android/os/cpufreq.proto
@@ -18,10 +18,13 @@
 option java_multiple_files = true;
 option java_outer_classname = "CpuFreqProto";
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.os;
 
 // cpu frequency time from /sys/devices/system/cpu/cpufreq/all_time_in_state
 message CpuFreq {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int32 jiffy_hz = 1; // obtain by system config.
 
@@ -30,10 +33,13 @@
 
 // frequency time pre cpu, unit in jiffy, TODO: obtain jiffies.
 message CpuFreqStats {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional string cpu_name = 1;
 
     message TimeInState {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 state_khz = 1;  // cpu frequency
         optional int64 time_jiffy = 2; // number of jiffies
     }
diff --git a/core/proto/android/os/cpuinfo.proto b/core/proto/android/os/cpuinfo.proto
index cd151e2..ca43602 100644
--- a/core/proto/android/os/cpuinfo.proto
+++ b/core/proto/android/os/cpuinfo.proto
@@ -18,6 +18,8 @@
 option java_multiple_files = true;
 option java_outer_classname = "CpuInfoProto";
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.os;
 
 /**
@@ -27,8 +29,11 @@
  * Next Tag: 6
  */
 message CpuInfo {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     message TaskStats {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 total = 1;    // total number of cpu tasks
         optional int32 running = 2;  // number of running tasks
         optional int32 sleeping = 3; // number of sleeping tasks
@@ -38,6 +43,8 @@
     optional TaskStats task_stats = 1;
 
     message MemStats { // unit in kB
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 total = 1;
         optional int32 used = 2;
         optional int32 free = 3;
@@ -48,6 +55,8 @@
     optional MemStats swap = 3;
 
     message CpuUsage { // unit is percentage %
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 cpu = 1;   // 400% cpu indicates 4 cores
         optional int32 user = 2;
         optional int32 nice = 3;
@@ -62,9 +71,11 @@
 
     // Next Tag: 13
     message Task {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 pid = 1;
         optional int32 tid = 2;
-        optional string user = 3;
+        optional string user = 3;   // the process name which uses cpu
         optional string pr = 4;     // priority of each task, using string type is because special value RT (real time)
         optional sint32 ni = 5;     // niceness value
         optional float cpu = 6;     // precentage of cpu usage of the task
diff --git a/core/proto/android/os/kernelwake.proto b/core/proto/android/os/kernelwake.proto
index 7e5be9d..c296dab 100644
--- a/core/proto/android/os/kernelwake.proto
+++ b/core/proto/android/os/kernelwake.proto
@@ -18,15 +18,21 @@
 option java_multiple_files = true;
 option java_outer_classname = "WakeupSourcesProto";
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.os;
 
 message KernelWakeSources {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Kernel records of what caused the application processor to wake up
     repeated WakeupSourceProto wakeup_sources = 1;
 }
 
 // Next Tag: 11
 message WakeupSourceProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Name of the event which triggers application processor
     optional string name = 1;
 
diff --git a/core/proto/android/os/looper.proto b/core/proto/android/os/looper.proto
index ef84bb1..435c648 100644
--- a/core/proto/android/os/looper.proto
+++ b/core/proto/android/os/looper.proto
@@ -20,9 +20,12 @@
 option java_multiple_files = true;
 
 import "frameworks/base/core/proto/android/os/messagequeue.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 message LooperProto {
-    optional string thread_name = 1;
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
+    optional string thread_name = 1 [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional int64 thread_id = 2;
     optional int32 identity_hash_code = 3;
     optional android.os.MessageQueueProto queue = 4;
diff --git a/core/proto/android/os/message.proto b/core/proto/android/os/message.proto
index 38e27a1..048d031 100644
--- a/core/proto/android/os/message.proto
+++ b/core/proto/android/os/message.proto
@@ -17,9 +17,12 @@
 syntax = "proto2";
 package android.os;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 option java_multiple_files = true;
 
 message MessageProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int64 when = 1;
     // Name of callback class.
     optional string callback = 2;
@@ -29,7 +32,7 @@
     optional int32 arg1 = 4;
     optional int32 arg2 = 5;
     // String representation of an arbitrary object to send to the recipient.
-    optional string obj = 6;
+    optional string obj = 6 [ (.android.privacy).dest = DEST_EXPLICIT ];
     // Name of target class.
     optional string target = 7;
     optional int32 barrier = 8;
diff --git a/core/proto/android/os/messagequeue.proto b/core/proto/android/os/messagequeue.proto
index 5d4bff0..4bfcb81 100644
--- a/core/proto/android/os/messagequeue.proto
+++ b/core/proto/android/os/messagequeue.proto
@@ -20,8 +20,11 @@
 option java_multiple_files = true;
 
 import "frameworks/base/core/proto/android/os/message.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 message MessageQueueProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     repeated android.os.MessageProto messages = 1;
     optional bool is_polling_locked = 2;
     optional bool is_quitting = 3;
diff --git a/core/proto/android/os/pagetypeinfo.proto b/core/proto/android/os/pagetypeinfo.proto
index f82ea76..b8f618b 100644
--- a/core/proto/android/os/pagetypeinfo.proto
+++ b/core/proto/android/os/pagetypeinfo.proto
@@ -18,6 +18,8 @@
 option java_multiple_files = true;
 option java_outer_classname = "PageTypeInfoProto";
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 package android.os;
 
 /*
@@ -36,6 +38,7 @@
  *  Next tag: 5
  */
 message PageTypeInfo {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int32 page_block_order = 1;
 
@@ -48,6 +51,7 @@
 
 // Next tag: 5
 message MigrateTypeProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int32 node = 1;
 
@@ -61,6 +65,7 @@
 
 // Next tag: 9
 message BlockProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int32 node = 1;
 
diff --git a/core/proto/android/os/patternmatcher.proto b/core/proto/android/os/patternmatcher.proto
index d30315b..520f2f5 100644
--- a/core/proto/android/os/patternmatcher.proto
+++ b/core/proto/android/os/patternmatcher.proto
@@ -16,10 +16,13 @@
 
 syntax = "proto2";
 option java_multiple_files = true;
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package android.os;
 
 message PatternMatcherProto {
+    option (android.msg_privacy).dest = DEST_EXPLICIT;
+
     optional string pattern = 1;
 
     enum Type {
diff --git a/core/proto/android/os/system_properties.proto b/core/proto/android/os/system_properties.proto
index 07b9ad0..694b94b 100644
--- a/core/proto/android/os/system_properties.proto
+++ b/core/proto/android/os/system_properties.proto
@@ -134,6 +134,8 @@
     optional bool   hal_instrumentation_enable = 11;
 
     message InitSvc {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         enum Status {
             STATUS_UNKNOWN = 0;
             STATUS_RUNNING = 1;
@@ -230,7 +232,7 @@
 
     // Read only properites on the device.
     message Ro {
-        optional bool  adb_secure = 1;
+        optional bool  adb_secure = 1 [ (android.privacy).dest = DEST_AUTOMATIC ];
         optional string arch = 2;
         optional bool   audio_ignore_effects = 3;
         optional bool   audio_monitorRotation = 4;
@@ -265,6 +267,8 @@
 
         // boot.img's properties.
         message BootImage {
+            option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
             // When the boot.img is built.
             optional string build_date = 1;
             // UTC timestamp of build date.
@@ -278,12 +282,14 @@
         optional BootImage bootimage = 8;
 
         // Version of bootloader on device.
-        optional string bootloader = 9;
+        optional string bootloader = 9  [ (android.privacy).dest = DEST_AUTOMATIC ];
         // Kernel bootmode, e.g. charger.
-        optional string bootmode = 10;
+        optional string bootmode = 10  [ (android.privacy).dest = DEST_AUTOMATIC ];
 
         // Android Platform build metadata.
         message Build {
+            option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
             optional string date = 1;
             optional int64  date_utc = 2;
             optional string description = 3;
@@ -297,6 +303,8 @@
             optional string user = 11;
 
             message Version {
+                option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
                 optional string base_os = 1;
                 optional string codename = 2;
                 optional string incremental = 3;
@@ -313,10 +321,10 @@
         }
         optional Build build = 11;
 
-        optional bool   camera_notify_nfc = 12;
+        optional bool   camera_notify_nfc = 12  [ (android.privacy).dest = DEST_AUTOMATIC ];
         optional string carrier = 13;
-        optional bool   com_android_dataroaming = 14;
-        optional bool   com_android_prov_mobiledata = 15;
+        optional bool   com_android_dataroaming = 14  [ (android.privacy).dest = DEST_AUTOMATIC ];
+        optional bool   com_android_prov_mobiledata = 15  [ (android.privacy).dest = DEST_AUTOMATIC ];
         optional string com_google_clientidbase = 16;
 
         message Config {
@@ -341,6 +349,8 @@
         optional string gfx_driver_0 = 26;
 
         message Hardware {
+            option (android.msg_privacy).dest = DEST_LOCAL;
+
             optional string value = 1; // value of ro.hardware itself
 
             optional string activity_recognition = 2;
@@ -392,6 +402,8 @@
         optional int32  opengles_version = 31;
 
         message Product {
+            option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
             optional string board = 1;
             optional string brand = 2;
             optional string cpu_abi = 3;
@@ -405,6 +417,8 @@
             optional string name = 11;
 
             message Vendor {
+                option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
                 optional string brand = 1;
                 optional string device = 2;
                 optional string manufacturer = 3;
diff --git a/core/proto/android/providers/settings.proto b/core/proto/android/providers/settings.proto
index 95eb889..27fbb24 100644
--- a/core/proto/android/providers/settings.proto
+++ b/core/proto/android/providers/settings.proto
@@ -392,8 +392,11 @@
     optional SettingProto enable_smart_replies_in_notifications = 348;
     optional SettingProto show_first_crash_dialog = 349;
     optional SettingProto wifi_connected_mac_randomization_enabled = 350;
+    optional SettingProto show_restart_in_crash_dialog = 351;
+    optional SettingProto show_mute_in_crash_dialog = 352;
+    optional SettingProto chained_battery_attribution_enabled = 353;
 
-    // Next tag = 351;
+    // Next tag = 354;
 }
 
 message SecureSettingsProto {
@@ -596,8 +599,9 @@
     optional SettingProto lockdown_in_power_menu = 194;
     optional SettingProto backup_manager_constants = 169;
     optional SettingProto show_first_crash_dialog_dev_option = 195;
+    optional SettingProto bluetooth_on_while_driving = 196;
 
-    // Next tag = 196
+    // Next tag = 197
 }
 
 message SystemSettingsProto {
diff --git a/core/proto/android/server/activitymanagerservice.proto b/core/proto/android/server/activitymanagerservice.proto
index 0649556..55e6a74 100644
--- a/core/proto/android/server/activitymanagerservice.proto
+++ b/core/proto/android/server/activitymanagerservice.proto
@@ -33,10 +33,13 @@
 import "frameworks/base/core/proto/android/server/intentresolver.proto";
 import "frameworks/base/core/proto/android/server/windowmanagerservice.proto";
 import "frameworks/base/core/proto/android/util/common.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 option java_multiple_files = true;
 
 message ActivityManagerServiceProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional ActivityStackSupervisorProto activities = 1;
 
   optional BroadcastProto broadcasts = 2;
@@ -48,6 +51,8 @@
 
 // "dumpsys activity --proto activities"
 message ActivityStackSupervisorProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .com.android.server.wm.proto.ConfigurationContainerProto configuration_container = 1;
   repeated ActivityDisplayProto displays = 2;
   optional KeyguardControllerProto keyguard_controller = 3;
@@ -57,12 +62,16 @@
 
 /* represents ActivityStackSupervisor.ActivityDisplay */
 message ActivityDisplayProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .com.android.server.wm.proto.ConfigurationContainerProto configuration_container = 1;
   optional int32 id = 2;
   repeated ActivityStackProto stacks = 3;
 }
 
 message ActivityStackProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .com.android.server.wm.proto.ConfigurationContainerProto configuration_container = 1;
   optional int32 id = 2;
   repeated TaskRecordProto tasks = 3;
@@ -73,6 +82,8 @@
 }
 
 message TaskRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .com.android.server.wm.proto.ConfigurationContainerProto configuration_container = 1;
   optional int32 id = 2;
   repeated ActivityRecordProto activities = 3;
@@ -89,6 +100,8 @@
 }
 
 message ActivityRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .com.android.server.wm.proto.ConfigurationContainerProto configuration_container = 1;
   optional .com.android.server.wm.proto.IdentifierProto identifier = 2;
   optional string state = 3;
@@ -98,12 +111,16 @@
 }
 
 message KeyguardControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool keyguard_showing = 1;
   optional bool keyguard_occluded = 2;
 }
 
 // "dumpsys activity --proto broadcasts"
 message BroadcastProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   repeated ReceiverListProto  receiver_list = 1;
 
   optional .com.android.server.IntentResolverProto receiver_resolver = 2;
@@ -120,6 +137,8 @@
 }
 
 message ReceiverListProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional ProcessRecordProto app = 1;
   optional int32 pid = 2;
   optional int32 uid = 3;
@@ -131,6 +150,8 @@
 }
 
 message ProcessRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 pid = 1;
   optional string process_name = 2;
   optional int32 uid = 3;
@@ -141,11 +162,15 @@
 }
 
 message BroadcastRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 user_id = 1;
   optional string intent_action = 2;
 }
 
 message BroadcastFilterProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.content.IntentFilterProto intent_filter = 1;
   optional string required_permission = 2;
   optional string hex_hash = 3; // used to find the object in IntentResolver
@@ -153,6 +178,8 @@
 }
 
 message BroadcastQueueProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string queue_name = 1;
   repeated BroadcastRecordProto parallel_broadcasts = 2;
   repeated BroadcastRecordProto ordered_broadcasts = 3;
@@ -160,6 +187,8 @@
   repeated BroadcastRecordProto historical_broadcasts = 5;
 
   message BroadcastSummary {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional .android.content.IntentProto intent = 1;
     optional int64 enqueue_clock_time_ms = 2;
     optional int64 dispatch_clock_time_ms = 3;
@@ -169,14 +198,20 @@
 }
 
 message MemInfoProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int64 uptime_duration_ms = 1;
   optional int64 elapsed_realtime_ms = 2;
 
   message ProcessMemory {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 pid = 1;
     optional string process_name = 2;
 
     message MemoryInfo {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional string name = 1;
       // The proportional set size for the heap.
       optional int32 total_pss_kb = 2;
@@ -198,6 +233,8 @@
       }
     }
     message HeapInfo {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional MemoryInfo mem_info = 1;
       optional int32 heap_size_kb = 2;
       optional int32 heap_alloc_kb = 3;
@@ -213,6 +250,8 @@
     repeated MemoryInfo dalvik_details = 8;
 
     message AppSummary {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 java_heap_pss_kb = 1;
       optional int32 native_heap_pss_kb = 2;
       optional int32 code_pss_kb = 3;
@@ -231,9 +270,13 @@
   repeated ProcessMemory native_processes = 3;
 
   message AppData {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional ProcessMemory process_memory = 1;
 
     message ObjectStats {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 view_instance_count = 1;
       optional int32 view_root_instance_count = 2;
       optional int32 app_context_instance_count = 3;
@@ -251,11 +294,15 @@
     optional ObjectStats objects = 2;
 
     message SqlStats {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 memory_used_kb = 1;
       optional int32 pagecache_overflow_kb = 2;
       optional int32 malloc_size_kb = 3;
 
       message Database {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional string name = 1;
         optional int32 page_size = 2;
         optional int32 db_size = 3;
@@ -275,6 +322,8 @@
   repeated AppData app_processes = 4;
 
   message MemItem {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string tag = 1;
     optional string label = 2;
     optional int32 id = 3;
@@ -338,9 +387,13 @@
 }
 
 message StickyBroadcastProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 user = 1;
 
   message StickyAction {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string name = 1;
     repeated .android.content.IntentProto intents = 2;
   }
@@ -349,6 +402,7 @@
 
 // "dumpsys activity --proto service"
 message ActiveServicesProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
 
   message ServicesByUser {
     optional int32 user_id = 1;
@@ -359,11 +413,15 @@
 
 // corresponds to ActivityManagerService.GrantUri Java class
 message GrantUriProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 source_user_id = 1;
-  optional string uri = 2;
+  optional string uri = 2 [ (.android.privacy).dest = DEST_EXPLICIT ];
 }
 
 message NeededUriGrantsProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string target_package = 1;
   optional int32 target_uid = 2;
   optional int32 flags = 3;
@@ -372,12 +430,16 @@
 }
 
 message UriPermissionOwnerProto {
+  option (.android.msg_privacy).dest = DEST_EXPLICIT;
+
   optional string owner = 1;
   repeated GrantUriProto read_perms = 2;
   repeated GrantUriProto write_perms = 3;
 }
 
 message ServiceRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string short_name = 1;
   optional string hex_hash = 2;
   optional bool is_running = 3; // false if the application service is null
@@ -388,6 +450,8 @@
   optional string permission = 8;
 
   message AppInfo {
+    option (.android.msg_privacy).dest = DEST_EXPLICIT;
+
     optional string base_dir = 1;
     optional string res_dir = 2;
     optional string data_dir = 3;
@@ -399,6 +463,8 @@
   optional bool delayed = 13;
 
   message Foreground {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 id = 1;
     optional .android.app.NotificationProto notification = 2;
   }
@@ -412,6 +478,8 @@
 
   // variables used to track states related to service start
   message Start {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional bool start_requested = 1;
     optional bool delayed_stop = 2;
     optional bool stop_if_killed = 3;
@@ -421,6 +489,8 @@
   optional Start start = 20;
 
   message ExecuteNesting {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 execute_nesting = 1;
     optional bool execute_fg = 2;
     optional .android.util.Duration executing_start = 3;
@@ -430,6 +500,8 @@
   optional .android.util.Duration destory_time = 22;
 
   message Crash {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 restart_count = 1;
     optional .android.util.Duration restart_delay = 2;
     optional .android.util.Duration next_restart_time = 3;
@@ -438,6 +510,8 @@
   optional Crash crash = 23;
 
   message StartItemProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 id = 1;
     optional .android.util.Duration duration = 2;
     optional int32 delivery_count = 3;
@@ -454,6 +528,8 @@
 }
 
 message ConnectionRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string hex_hash = 1;
   optional int32 user_id = 2;
 
@@ -481,12 +557,16 @@
 }
 
 message AppBindRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string hex_hash = 1;
   optional ProcessRecordProto client = 2;
   repeated ConnectionRecordProto connections = 3;
 }
 
 message IntentBindRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string hex_hash = 1;
   optional bool is_create = 2;
   optional .android.content.IntentProto intent = 3;
@@ -501,6 +581,8 @@
 
 // TODO: "dumpsys activity --proto processes"
 message ProcessesProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   repeated ProcessRecordProto procs = 1;
   repeated ProcessRecordProto isolated_procs = 2;
   repeated ActiveInstrumentationProto active_instrumentations = 3;
@@ -509,6 +591,8 @@
 
   // Process LRU list (sorted by oom_adj)
   message LruProcesses {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 size = 1;
     optional int32 non_act_at = 2;
     optional int32 non_svc_at = 3;
@@ -539,18 +623,24 @@
   optional bool config_will_change = 21;
 
   message ScreenCompatPackage {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string package = 1;
     optional int32 mode = 2;
   }
   repeated ScreenCompatPackage screen_compat_packages = 22;
 
   message UidObserverRegistrationProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 uid = 1;
     optional string package = 2;
     repeated .android.app.UidObserverFlag flags = 3;
     optional int32 cut_point = 4; // only available when UID_OBSERVER_PROCSTATE is on
 
     message ProcState {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 uid = 1;
       optional int32 state = 2;
     }
@@ -561,6 +651,8 @@
   repeated int32 device_idle_temp_whitelist = 25;
 
   message PendingTempWhitelist {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 target_uid = 1;
     optional int64 duration_ms = 2;
     optional string tag = 3;
@@ -568,6 +660,8 @@
   repeated PendingTempWhitelist pending_temp_whitelist = 26;
 
   message SleepStatus {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional .android.os.PowerManagerInternalProto.Wakefulness wakefulness = 1;
     repeated string sleep_tokens = 2;
     optional bool sleeping = 3;
@@ -577,12 +671,16 @@
   optional SleepStatus sleep_status = 27;
 
   message VoiceProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string session = 1;
     optional .android.os.PowerManagerProto.WakeLockProto wakelock = 2;
   }
   optional VoiceProto running_voice = 28;
 
   message VrControllerProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     enum VrMode {
       FLAG_NON_VR_MODE = 0;
       FLAG_VR_MODE = 1;
@@ -594,6 +692,8 @@
   optional VrControllerProto vr_controller = 29;
 
   message DebugApp {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string debug_app = 1;
     optional string orig_debug_app = 2;
     optional bool debug_transient = 3;
@@ -603,10 +703,16 @@
   optional AppTimeTrackerProto current_tracker = 31;
 
   message MemWatchProcess {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     message Process {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional string name = 1;
 
       message MemStats {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 uid = 1;
         optional string size = 2;
         optional string report_to = 3;
@@ -616,8 +722,10 @@
     repeated Process procs = 1;
 
     message Dump {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional string proc_name = 1;
-      optional string file = 2;
+      optional string file = 2  [ (.android.privacy).dest = DEST_EXPLICIT ];
       optional int32 pid = 3;
       optional int32 uid = 4;
     }
@@ -627,6 +735,8 @@
   optional string track_allocation_app = 33;
 
   message Profile {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string app_name = 1;
     optional ProcessRecordProto proc = 2;
     optional .android.app.ProfilerInfoProto info = 3;
@@ -637,6 +747,8 @@
   optional bool always_finish_activities = 36;
 
   message Controller {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string controller = 1;
     optional bool is_a_monkey = 2;
   }
@@ -667,6 +779,8 @@
 }
 
 message ActiveInstrumentationProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.content.ComponentNameProto class = 1;
   optional bool finished = 2;
   repeated ProcessRecordProto running_processes = 3;
@@ -675,11 +789,13 @@
   optional string profile_file = 6;
   optional string watcher = 7;
   optional string ui_automation_connection = 8;
-  optional string arguments = 9;
+  optional string arguments = 9  [ (.android.privacy).dest = DEST_EXPLICIT ];
 }
 
 // Proto definition of com.android.server.am.UidRecord.java
 message UidRecordProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string hex_hash = 1;
   optional int32 uid = 2;
   optional .android.app.ProcessStateEnum current = 3;
@@ -700,6 +816,8 @@
   optional int32 num_procs = 10;
 
   message ProcStateSequence {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int64 cururent = 1;
     optional int64 last_network_updated = 2;
     optional int64 last_dispatched = 3;
@@ -709,12 +827,16 @@
 
 // proto of class ImportanceToken in ActivityManagerService
 message ImportanceTokenProto {
+  option (.android.msg_privacy).dest = DEST_EXPLICIT;
+
   optional int32 pid = 1;
   optional string token = 2;
   optional string reason = 3;
 }
 
 message ProcessOomProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool persistent = 1;
   optional int32 num = 2;
   optional string oom_adj = 3;
@@ -750,6 +872,8 @@
   }
 
   message Detail {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 max_adj = 1;
     optional int32 cur_raw_adj = 2;
     optional int32 set_raw_adj = 3;
@@ -766,6 +890,8 @@
 
     // only make sense if process is a service
     message CpuRunTime {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int64 over_ms = 1;
       optional int64 used_ms = 2;
       optional float ultilization = 3; // ratio of cpu time usage
@@ -776,6 +902,8 @@
 }
 
 message ProcessToGcProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional ProcessRecordProto proc = 1;
   optional bool report_low_memory = 2;
   optional int64 now_uptime_ms = 3;
@@ -785,13 +913,18 @@
 
 // sync with com.android.server.am.AppErrors.java
 message AppErrorsProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
 
   optional int64 now_uptime_ms = 1;
 
   message ProcessCrashTime {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string process_name = 1;
 
     message Entry {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 uid = 1;
       optional int64 last_crashed_at_ms = 2;
     }
@@ -800,14 +933,18 @@
   repeated ProcessCrashTime process_crash_times = 2;
 
   message BadProcess {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string process_name = 1;
 
     message Entry {
+      option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
       optional int32 uid = 1;
       optional int64 crashed_at_ms = 2;
       optional string short_msg = 3;
-      optional string long_msg = 4;
-      optional string stack = 5;
+      optional string long_msg = 4  [ (.android.privacy).dest = DEST_EXPLICIT ];
+      optional string stack = 5  [ (.android.privacy).dest = DEST_EXPLICIT ];
     }
     repeated Entry entries = 2;
   }
@@ -816,6 +953,8 @@
 
 // sync with com.android.server.am.UserState.java
 message UserStateProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   enum State {
     STATE_BOOTING = 0;
     STATE_RUNNING_LOCKED = 1;
@@ -830,7 +969,11 @@
 
 // sync with com.android.server.am.UserController.java
 message UserControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   message User {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 id = 1;
     optional UserStateProto state = 2;
   }
@@ -839,6 +982,8 @@
   repeated int32 user_lru = 3;
 
   message UserProfile {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int32 user = 1;
     optional int32 profile = 2;
   }
@@ -847,6 +992,8 @@
 
 // sync with com.android.server.am.AppTimeTracker.java
 message AppTimeTrackerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string receiver = 1;
   optional int64 total_duration_ms = 2;
 
diff --git a/core/proto/android/server/alarmmanagerservice.proto b/core/proto/android/server/alarmmanagerservice.proto
index 87d302e..53b4be4 100644
--- a/core/proto/android/server/alarmmanagerservice.proto
+++ b/core/proto/android/server/alarmmanagerservice.proto
@@ -47,6 +47,8 @@
   // Only valid if is_interactive is false.
   optional int64 time_until_next_non_wakeup_delivery_ms = 11;
 
+  // Can be negative if the non-wakeup alarm time is in the past (non-wakeup
+  // alarms aren't delivered unil the next time the device wakes up).
   optional int64 time_until_next_non_wakeup_alarm_ms = 12;
   optional int64 time_until_next_wakeup_ms = 13;
   optional int64 time_since_last_wakeup_ms = 14;
diff --git a/core/proto/android/server/appwindowthumbnail.proto b/core/proto/android/server/appwindowthumbnail.proto
index e67b854..8f48d75 100644
--- a/core/proto/android/server/appwindowthumbnail.proto
+++ b/core/proto/android/server/appwindowthumbnail.proto
@@ -17,6 +17,7 @@
 syntax = "proto2";
 
 import "frameworks/base/core/proto/android/server/surfaceanimator.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package com.android.server.wm.proto;
 option java_multiple_files = true;
@@ -25,6 +26,8 @@
  * Represents a {@link com.android.server.wm.AppWindowThumbnail} object.
  */
 message AppWindowThumbnailProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 width = 1;
   optional int32 height = 2;
   optional SurfaceAnimatorProto surface_animator = 3;
diff --git a/core/proto/android/server/fingerprint.proto b/core/proto/android/server/fingerprint.proto
index ec4ffe0..2a7fbc3 100644
--- a/core/proto/android/server/fingerprint.proto
+++ b/core/proto/android/server/fingerprint.proto
@@ -17,15 +17,21 @@
 syntax = "proto2";
 package com.android.server.fingerprint;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 option java_outer_classname = "FingerprintServiceProto";
 
 message FingerprintServiceDumpProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Each log may include multiple tuples of (user_id, num_fingerprints).
     repeated FingerprintUserStatsProto users = 1;
 }
 
 message FingerprintUserStatsProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Should be 0, 10, 11, 12, etc. where 0 is the owner.
     optional int32 user_id = 1;
 
@@ -42,6 +48,8 @@
 
 // A com.android.server.fingerprint.FingerpintService.PerformanceStats object.
 message PerformanceStatsProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Number of accepted fingerprints.
     optional int32 accept = 1;
 
diff --git a/core/proto/android/server/powermanagerservice.proto b/core/proto/android/server/powermanagerservice.proto
index 37e26ae..babbef0 100644
--- a/core/proto/android/server/powermanagerservice.proto
+++ b/core/proto/android/server/powermanagerservice.proto
@@ -28,13 +28,20 @@
 import "frameworks/base/core/proto/android/providers/settings.proto";
 import "frameworks/base/core/proto/android/server/wirelesschargerdetector.proto";
 import "frameworks/base/core/proto/android/view/display.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 message PowerManagerServiceDumpProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // A com.android.server.power.PowerManagerService.Constants object.
     message ConstantsProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional bool is_no_cached_wake_locks = 1;
     }
     message ActiveWakeLocksProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional bool is_cpu = 1;
         optional bool is_screen_bright = 2;
         optional bool is_screen_dim = 3;
@@ -46,12 +53,16 @@
         optional bool is_draw = 8;
     }
     message UserActivityProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional bool is_screen_bright = 1;
         optional bool is_screen_dim = 2;
         optional bool is_screen_dream = 3;
     }
     // A com.android.server.power.PowerManagerService.UidState object.
     message UidStateProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 uid = 1;
         optional string uid_string = 2;
         optional bool is_active = 3;
@@ -166,13 +177,19 @@
 
 // A com.android.server.power.PowerManagerService.SuspendBlockerImpl object.
 message SuspendBlockerProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string name = 1;
     optional int32 reference_count = 2;
 }
 
 // A com.android.server.power.PowerManagerService.WakeLock object.
 message WakeLockProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     message WakeLockFlagsProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         // Turn the screen on when the wake lock is acquired.
         optional bool is_acquire_causes_wakeup = 1;
         // When this wake lock is released, poke the user activity timer
@@ -181,7 +198,7 @@
     }
 
     optional .android.os.PowerManagerProto.WakeLockLevel lock_level = 1;
-    optional string tag = 2;
+    optional string tag = 2 [ (.android.privacy).dest = DEST_EXPLICIT ];
     optional WakeLockFlagsProto flags = 3;
     optional bool is_disabled = 4;
     // Acquire time in ms
@@ -195,12 +212,18 @@
 }
 
 message PowerServiceSettingsAndConfigurationDumpProto {
+    option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
     message StayOnWhilePluggedInProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional bool is_stay_on_while_plugged_in_ac = 1;
         optional bool is_stay_on_while_plugged_in_usb = 2;
         optional bool is_stay_on_while_plugged_in_wireless = 3;
     }
     message ScreenBrightnessSettingLimitsProto {
+        option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 setting_minimum = 1;
         optional int32 setting_maximum = 2;
         optional int32 setting_default = 3;
diff --git a/core/proto/android/server/surfaceanimator.proto b/core/proto/android/server/surfaceanimator.proto
index 60713d7..7f7839e 100644
--- a/core/proto/android/server/surfaceanimator.proto
+++ b/core/proto/android/server/surfaceanimator.proto
@@ -17,6 +17,7 @@
 syntax = "proto2";
 
 import "frameworks/base/core/proto/android/view/surfacecontrol.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package com.android.server.wm.proto;
 option java_multiple_files = true;
@@ -25,6 +26,8 @@
  * Represents a {@link com.android.server.wm.SurfaceAnimator} object.
  */
 message SurfaceAnimatorProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional string animation_adapter = 1;
   optional .android.view.SurfaceControlProto leash = 2;
   optional bool animation_start_delayed = 3;
diff --git a/core/proto/android/server/windowmanagerservice.proto b/core/proto/android/server/windowmanagerservice.proto
index 71f33c7..c11058a 100644
--- a/core/proto/android/server/windowmanagerservice.proto
+++ b/core/proto/android/server/windowmanagerservice.proto
@@ -26,12 +26,15 @@
 import "frameworks/base/core/proto/android/view/displayinfo.proto";
 import "frameworks/base/core/proto/android/view/surface.proto";
 import "frameworks/base/core/proto/android/view/windowlayoutparams.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package com.android.server.wm.proto;
 
 option java_multiple_files = true;
 
 message WindowManagerServiceProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowManagerPolicyProto policy = 1;
   /* window hierarchy root */
   optional RootWindowContainerProto root_window_container = 2;
@@ -46,6 +49,8 @@
 
 /* represents DisplayContent */
 message RootWindowContainerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   repeated DisplayProto displays = 2;
   /* window references in top down z order */
@@ -53,16 +58,22 @@
 }
 
 message BarControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.app.StatusBarManagerProto.WindowState state = 1;
   optional .android.app.StatusBarManagerProto.TransientWindowState transient_state = 2;
 }
 
 message WindowOrientationListenerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool enabled = 1;
   optional .android.view.SurfaceProto.Rotation rotation = 2;
 }
 
 message KeyguardServiceDelegateProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool showing = 1;
   optional bool occluded = 2;
   optional bool secure = 3;
@@ -84,6 +95,8 @@
 
 /* represents PhoneWindowManager */
 message WindowManagerPolicyProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 last_system_ui_flags = 1;
   enum UserRotationMode {
     USER_ROTATION_FREE = 0;
@@ -112,6 +125,8 @@
 
 /* represents AppTransition */
 message AppTransitionProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   enum AppState {
     APP_STATE_IDLE = 0;
     APP_STATE_READY = 1;
@@ -147,6 +162,8 @@
 
 /* represents DisplayContent */
 message DisplayProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   optional int32 id = 2;
   repeated StackProto stacks = 3;
@@ -165,22 +182,30 @@
 
 /* represents DisplayFrames */
 message DisplayFramesProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.graphics.RectProto stable_bounds = 1;
 }
 
 /* represents DockedStackDividerController */
 message DockedStackDividerControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool minimized_dock = 1;
 }
 
 /* represents PinnedStackController */
 message PinnedStackControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.graphics.RectProto default_bounds = 1;
   optional .android.graphics.RectProto movement_bounds = 2;
 }
 
 /* represents TaskStack */
 message StackProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   optional int32 id = 2;
   repeated TaskProto tasks = 3;
@@ -197,6 +222,8 @@
 
 /* represents Task */
 message TaskProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   optional int32 id = 2;
   repeated AppWindowTokenProto app_window_tokens = 3;
@@ -208,8 +235,10 @@
 
 /* represents AppWindowToken */
 message AppWindowTokenProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   /* obtained from ActivityRecord */
-  optional string name = 1;
+  optional string name = 1 [ (.android.privacy).dest = DEST_EXPLICIT ];
   optional WindowTokenProto window_token = 2;
   optional bool last_surface_showing = 3;
   optional bool is_waiting_for_transition_start =  4;
@@ -236,6 +265,8 @@
 
 /* represents WindowToken */
 message WindowTokenProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   optional int32 hash_code = 2;
   repeated WindowStateProto windows = 3;
@@ -246,6 +277,8 @@
 
 /* represents WindowState */
 message WindowStateProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional WindowContainerProto window_container = 1;
   optional IdentifierProto identifier = 2;
   optional int32 display_id = 3;
@@ -287,13 +320,17 @@
 }
 
 message IdentifierProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 hash_code = 1;
   optional int32 user_id = 2;
-  optional string title = 3;
+  optional string title = 3  [ (.android.privacy).dest = DEST_EXPLICIT ];
 }
 
 /* represents WindowStateAnimator */
 message WindowStateAnimatorProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.graphics.RectProto last_clip_rect = 1;
   optional WindowSurfaceControllerProto surface = 2;
   enum DrawState {
@@ -309,18 +346,24 @@
 
 /* represents WindowSurfaceController */
 message WindowSurfaceControllerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool shown = 1;
   optional int32 layer = 2;
 }
 
 /* represents ScreenRotationAnimation */
 message ScreenRotationAnimationProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional bool started = 1;
   optional bool animation_running = 2;
 }
 
 /* represents WindowContainer */
 message WindowContainerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional ConfigurationContainerProto configuration_container = 1;
   optional int32 orientation = 2;
   optional bool visible = 3;
@@ -329,6 +372,8 @@
 
 /* represents ConfigurationContainer */
 message ConfigurationContainerProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional .android.content.ConfigurationProto override_configuration = 1;
   optional .android.content.ConfigurationProto full_configuration = 2;
   optional .android.content.ConfigurationProto merged_override_configuration = 3;
diff --git a/core/proto/android/service/diskstats.proto b/core/proto/android/service/diskstats.proto
index 3c7a0e3..3d7ee91 100644
--- a/core/proto/android/service/diskstats.proto
+++ b/core/proto/android/service/diskstats.proto
@@ -17,10 +17,14 @@
 syntax = "proto2";
 package android.service.diskstats;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 option java_outer_classname = "DiskStatsServiceProto";
 
 message DiskStatsServiceDumpProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     enum EncryptionType {
         // Unknown encryption type
         ENCRYPTION_UNKNOWN = 0;
@@ -34,7 +38,7 @@
     // Whether the latency test resulted in an error
     optional bool has_test_error = 1;
     // If the test errored, error message is contained here
-    optional string error_message = 2;
+    optional string error_message = 2 [ (android.privacy).dest = DEST_EXPLICIT ];
     // 512B write latency in milliseconds, if the test was successful
     optional int32 write_512b_latency_millis = 3;
     // Free Space in the major partitions
@@ -48,6 +52,8 @@
 }
 
 message DiskStatsCachedValuesProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Total app code size, in kilobytes
     optional int64 agg_apps_size = 1;
     // Total app cache size, in kilobytes
@@ -71,6 +77,8 @@
 }
 
 message DiskStatsAppSizesProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Name of the package
     optional string package_name = 1;
     // App's code size in kilobytes
@@ -82,6 +90,8 @@
 }
 
 message DiskStatsFreeSpaceProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     enum Folder {
         // Data folder
         FOLDER_DATA = 0;
diff --git a/core/proto/android/service/netstats.proto b/core/proto/android/service/netstats.proto
index ad9191c..29fd195 100644
--- a/core/proto/android/service/netstats.proto
+++ b/core/proto/android/service/netstats.proto
@@ -17,11 +17,15 @@
 syntax = "proto2";
 package android.service;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 option java_outer_classname = "NetworkStatsServiceProto";
 
 // Represents dumpsys from NetworkStatsService (netstats).
 message NetworkStatsServiceDumpProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     repeated NetworkInterfaceProto active_interfaces = 1;
 
     repeated NetworkInterfaceProto active_uid_interfaces = 2;
@@ -41,6 +45,8 @@
 
 // Corresponds to NetworkStatsService.mActiveIfaces/mActiveUidIfaces.
 message NetworkInterfaceProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional string interface = 1;
 
     optional NetworkIdentitySetProto identities = 2;
@@ -48,17 +54,21 @@
 
 // Corresponds to NetworkIdentitySet.
 message NetworkIdentitySetProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     repeated NetworkIdentityProto identities = 1;
 }
 
 // Corresponds to NetworkIdentity.
 message NetworkIdentityProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Constats from ConnectivityManager.TYPE_*.
     optional int32 type = 1;
 
-    optional string subscriber_id = 2;
+    optional string subscriber_id = 2 [ (android.privacy).dest = DEST_EXPLICIT ];
 
-    optional string network_id = 3;
+    optional string network_id = 3 [ (android.privacy).dest = DEST_EXPLICIT ];
 
     optional bool roaming = 4;
 
@@ -69,6 +79,8 @@
 
 // Corresponds to NetworkStatsRecorder.
 message NetworkStatsRecorderProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional int64 pending_total_bytes = 1;
 
     optional NetworkStatsCollectionProto complete_history = 2;
@@ -76,11 +88,15 @@
 
 // Corresponds to NetworkStatsCollection.
 message NetworkStatsCollectionProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     repeated NetworkStatsCollectionStatsProto stats = 1;
 }
 
 // Corresponds to NetworkStatsCollection.mStats.
 message NetworkStatsCollectionStatsProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional NetworkStatsCollectionKeyProto key = 1;
 
     optional NetworkStatsHistoryProto history = 2;
@@ -88,6 +104,8 @@
 
 // Corresponds to NetworkStatsCollection.Key.
 message NetworkStatsCollectionKeyProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     optional NetworkIdentitySetProto identity = 1;
 
     optional int32 uid = 2;
@@ -99,6 +117,8 @@
 
 // Corresponds to NetworkStatsHistory.
 message NetworkStatsHistoryProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Duration for this bucket in milliseconds.
     optional int64 bucket_duration_ms = 1;
 
@@ -107,6 +127,8 @@
 
 // Corresponds to each bucket in NetworkStatsHistory.
 message NetworkStatsHistoryBucketProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     // Bucket start time in milliseconds since epoch.
     optional int64 bucket_start_ms = 1;
 
diff --git a/core/proto/android/service/package.proto b/core/proto/android/service/package.proto
index aa1a575..ef777de 100644
--- a/core/proto/android/service/package.proto
+++ b/core/proto/android/service/package.proto
@@ -18,18 +18,25 @@
 package android.service.pm;
 
 import "frameworks/base/core/proto/android/content/featureinfo.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 option java_multiple_files = true;
 option java_outer_classname = "PackageServiceProto";
 
 message PackageServiceDumpProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     message PackageShortProto {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         // Name of package. e.g. "com.android.providers.telephony".
         optional string name = 1;
         // UID for this package as assigned by Android OS.
         optional int32 uid = 2;
     }
     message SharedLibraryProto {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional string name = 1;
         // True if library path is not null (jar), false otherwise (apk)
         optional bool is_jar = 2;
@@ -39,8 +46,10 @@
         optional string apk = 4;
     }
     message SharedUserProto {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         optional int32 user_id = 1;
-        optional string name = 2;
+        optional string name = 2 [ (android.privacy).dest = DEST_EXPLICIT ];
     }
 
     // Installed packages.
@@ -51,15 +60,22 @@
     repeated PackageProto packages = 5;
     repeated SharedUserProto shared_users = 6;
     // Messages from the settings problem file
-    repeated string messages = 7;
+    repeated string messages = 7 [ (android.privacy).dest = DEST_EXPLICIT ];
 }
 
 message PackageProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
     message SplitProto {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
+        // The split name of package, e.g. base
         optional string name = 1;
         optional int32 revision_code = 2;
     }
     message UserInfoProto {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         enum InstallType {
             NOT_INSTALLED_FOR_USER = 0;
             FULL_APP_INSTALL = 1;
diff --git a/core/proto/android/service/procstats.proto b/core/proto/android/service/procstats.proto
index b2e0373..4c11f1e 100644
--- a/core/proto/android/service/procstats.proto
+++ b/core/proto/android/service/procstats.proto
@@ -19,6 +19,7 @@
 option java_outer_classname = "ProcessStatsServiceProto";
 
 import "frameworks/base/core/proto/android/util/common.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package android.service.procstats;
 
@@ -28,6 +29,7 @@
  * Next Tag: 4
  */
 message ProcessStatsServiceDumpProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional ProcessStatsSectionProto procstats_now = 1;
 
@@ -43,6 +45,7 @@
  * Next Tag: 9
  */
 message ProcessStatsSectionProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     // Elapsed realtime at start of report.
     optional int64 start_realtime_ms = 1;
@@ -78,6 +81,7 @@
 
 // Next Tag: 6
 message ProcessStatsProto {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     // Name of process.
     optional string process = 1;
@@ -87,6 +91,8 @@
 
     // Information about how often kills occurred
     message Kill {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
       // Count of excessive CPU kills
       optional int32 cpu = 1;
 
@@ -99,6 +105,8 @@
     optional Kill kill = 3;
 
     message State {
+        option (android.msg_privacy).dest = DEST_AUTOMATIC;
+
         enum ScreenState {
             SCREEN_UNKNOWN = 0;
             OFF = 1;
@@ -115,6 +123,8 @@
         }
         optional MemoryState memory_state = 2;
 
+        // this enum list is from frameworks/base/core/java/com/android/internal/app/procstats/ProcessStats.java
+        // and not frameworks/base/core/java/android/app/ActivityManager.java
         enum ProcessState {
             PROCESS_UNKNOWN = 0;
             // Persistent system process.
@@ -127,14 +137,14 @@
             IMPORTANT_BACKGROUND = 4;
             // Performing backup operation.
             BACKUP = 5;
-            // Heavy-weight process (currently not used).
-            HEAVY_WEIGHT = 6;
             // Background process running a service.
-            SERVICE = 7;
+            SERVICE = 6;
             // Process not running, but would be if there was enough RAM.
-            SERVICE_RESTARTING = 8;
+            SERVICE_RESTARTING = 7;
             // Process running a receiver.
-            RECEIVER = 9;
+            RECEIVER = 8;
+            // Heavy-weight process (currently not used).
+            HEAVY_WEIGHT = 9;
             // Process hosting home/launcher app when not on top.
             HOME = 10;
             // Process hosting the last app the user was in.
diff --git a/core/proto/android/util/common.proto b/core/proto/android/util/common.proto
index 308ef70..f8f7885 100644
--- a/core/proto/android/util/common.proto
+++ b/core/proto/android/util/common.proto
@@ -17,12 +17,15 @@
 syntax = "proto2";
 package android.util;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 
 /**
  * Very basic data structure used by aggregated stats.
  */
 message AggStats {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int64 min = 1;
 
@@ -35,6 +38,7 @@
  * Very basic data structure to represent Duration.
  */
 message Duration {
+    option (android.msg_privacy).dest = DEST_AUTOMATIC;
 
     optional int64 start_ms = 1;
 
diff --git a/core/proto/android/util/log.proto b/core/proto/android/util/log.proto
index fd4fa9e..416c055 100644
--- a/core/proto/android/util/log.proto
+++ b/core/proto/android/util/log.proto
@@ -17,11 +17,15 @@
 syntax = "proto2";
 package android.util;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 
 // Represents a Text Log in logd
 // Next Tag: 9
 message TextLogEntry {
+    option (android.msg_privacy).dest = DEST_EXPLICIT;
+
     optional uint64 sec = 1;
     optional uint64 nanosec = 2;
 
@@ -47,6 +51,8 @@
 // Represents a Binary Log in logd, need to look event-log-tags for more info.
 // Next Tag: 8
 message BinaryLogEntry {
+    option (android.msg_privacy).dest = DEST_EXPLICIT;
+
     optional uint64 sec = 1;
     optional uint64 nanosec = 2;
     optional int32 uid = 3;
@@ -81,6 +87,8 @@
 }
 
 message LogProto {
+    option (android.msg_privacy).dest = DEST_EXPLICIT;
+
     repeated TextLogEntry text_logs = 1;
 
     repeated BinaryLogEntry binary_logs = 2;
diff --git a/core/proto/android/view/displayinfo.proto b/core/proto/android/view/displayinfo.proto
index 9ca4046..3ac8f3b 100644
--- a/core/proto/android/view/displayinfo.proto
+++ b/core/proto/android/view/displayinfo.proto
@@ -17,10 +17,14 @@
 syntax = "proto2";
 package android.view;
 
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
+
 option java_multiple_files = true;
 
 /* represents DisplayInfo */
 message DisplayInfoProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 logical_width = 1;
   optional int32 logical_height = 2;
   optional int32 app_width = 3;
diff --git a/core/proto/android/view/windowlayoutparams.proto b/core/proto/android/view/windowlayoutparams.proto
index f079e1e..0362ab1 100644
--- a/core/proto/android/view/windowlayoutparams.proto
+++ b/core/proto/android/view/windowlayoutparams.proto
@@ -18,12 +18,15 @@
 
 import "frameworks/base/core/proto/android/graphics/pixelformat.proto";
 import "frameworks/base/core/proto/android/view/display.proto";
+import "frameworks/base/libs/incident/proto/android/privacy.proto";
 
 package android.view;
 option java_multiple_files = true;
 
 /* represents WindowManager.LayoutParams */
 message WindowLayoutParamsProto {
+  option (.android.msg_privacy).dest = DEST_AUTOMATIC;
+
   optional int32 type = 1;
   optional int32 x = 2;
   optional int32 y = 3;
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index e6912f7..0861e710 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -578,6 +578,7 @@
     <!-- Added in P -->
     <protected-broadcast android:name="android.app.action.PROFILE_OWNER_CHANGED" />
     <protected-broadcast android:name="android.app.action.TRANSFER_OWNERSHIP_COMPLETE" />
+    <protected-broadcast android:name="android.app.action.AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE" />
     <protected-broadcast android:name="android.app.action.DATA_SHARING_RESTRICTION_CHANGED" />
 
     <!-- ====================================================================== -->
@@ -970,6 +971,23 @@
                 android:description="@string/permdesc_manageOwnCalls"
                 android:protectionLevel="normal" />
 
+    <!-- Allows a calling app to continue a call which was started in another app.  An example is a
+         video calling app that wants to continue a voice call on the user's mobile network.<p>
+         When the handover of a call from one app to another takes place, there are two devices
+         which are involved in the handover; the initiating and receiving devices.  The initiating
+         device is where the request to handover the call was started, and the receiving device is
+         where the handover request is confirmed by the other party.<p>
+         This permission protects access to the
+         {@link android.telecom.TelecomManager#acceptHandover(Uri, int, PhoneAccountHandle)} which
+         the receiving side of the handover uses to accept a handover.
+         <p>Protection level: dangerous
+    -->
+    <permission android:name="android.permission.ACCEPT_HANDOVER"
+                android:permissionGroup="android.permission-group.PHONE"
+                android.label="@string/permlab_acceptHandover"
+                android:description="@string/permdesc_acceptHandovers"
+                android:protectionLevel="dangerous" />
+
     <!-- ====================================================================== -->
     <!-- Permissions for accessing the device microphone                        -->
     <!-- ====================================================================== -->
@@ -2999,6 +3017,11 @@
     <permission android:name="android.permission.CONFIGURE_DISPLAY_BRIGHTNESS"
         android:protectionLevel="signature|privileged|development" />
 
+    <!-- Allows an application to control the system's display brightness
+         @hide -->
+    <permission android:name="android.permission.CONTROL_DISPLAY_BRIGHTNESS"
+        android:protectionLevel="signature" />
+
     <!-- @SystemApi Allows an application to control VPN.
          <p>Not for use by third-party applications.</p>
          @hide -->
@@ -3717,6 +3740,15 @@
     <permission android:name="android.permission.INSTANT_APP_FOREGROUND_SERVICE"
         android:protectionLevel="signature|development|instant|appop" />
 
+    <!-- Allows a regular application to use {@link android.app.Service#startForeground
+         Service.startForeground}.
+         <p>Protection level: normal
+    -->
+    <permission android:name="android.permission.FOREGROUND_SERVICE"
+        android:description="@string/permdesc_foregroundService"
+        android:label="@string/permlab_foregroundService"
+        android:protectionLevel="normal|instant" />
+
     <!-- @hide Allows system components to access all app shortcuts. -->
     <permission android:name="android.permission.ACCESS_SHORTCUTS"
         android:protectionLevel="signature" />
diff --git a/core/res/res/anim/cross_profile_apps_thumbnail_enter.xml b/core/res/res/anim/cross_profile_apps_thumbnail_enter.xml
index 3254ebb..6f3dc8c 100644
--- a/core/res/res/anim/cross_profile_apps_thumbnail_enter.xml
+++ b/core/res/res/anim/cross_profile_apps_thumbnail_enter.xml
@@ -20,19 +20,54 @@
 <set xmlns:android="http://schemas.android.com/apk/res/android"
      android:shareInterpolator="false" android:zAdjustment="top">
 
-    <alpha android:fromAlpha="0" android:toAlpha="1.0"
-           android:startOffset="300"
-           android:fillEnabled="true" android:fillBefore="true" android:fillAfter="true"
-           android:interpolator="@interpolator/decelerate_quart"
-           android:duration="167"/>
+    <alpha
+        android:fromAlpha="1"
+        android:toAlpha="1.0"
+        android:fillEnabled="true"
+        android:fillBefore="true"
+        android:fillAfter="true"
+        android:interpolator="@interpolator/linear"
+        android:startOffset="67"
+        android:duration="217"/>
 
-    <translate android:fromYDelta="110%" android:toYDelta="0"
-               android:startOffset="300"
-               android:fillEnabled="true" android:fillBefore="true" android:fillAfter="true"
-               android:interpolator="@interpolator/decelerate_quint"
-               android:duration="417"/>
+    <translate
+        android:fromXDelta="-105%"
+        android:toXDelta="0"
+        android:fillEnabled="true"
+        android:fillBefore="true"
+        android:fillAfter="true"
+        android:interpolator="@interpolator/aggressive_ease"
+        android:startOffset="50"
+        android:duration="383"/>
 
-    <!-- To keep the thumbnail around longer -->
+    <scale
+        android:fromXScale="1.0526"
+        android:toXScale="1"
+        android:fromYScale="1.0526"
+        android:toYScale="1"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:fillEnabled="true"
+        android:fillBefore="true"
+        android:fillAfter="true"
+        android:interpolator="@interpolator/fast_out_slow_in"
+        android:duration="283"/>
+
+    <scale
+        android:fromXScale="0.95"
+        android:toXScale="1"
+        android:fromYScale="0.95"
+        android:toYScale="1"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:fillEnabled="true"
+        android:fillBefore="true"
+        android:fillAfter="true"
+        android:interpolator="@interpolator/fast_out_slow_in"
+        android:startOffset="283"
+        android:duration="317"/>
+
+    <!-- To keep the thumbnail around longer and fade out the thumbnail -->
     <alpha android:fromAlpha="1.0" android:toAlpha="0"
            android:fillEnabled="true" android:fillBefore="true" android:fillAfter="true"
            android:interpolator="@interpolator/decelerate_quint"
diff --git a/core/res/res/anim/task_open_enter.xml b/core/res/res/anim/task_open_enter.xml
index 2ee7cd8..0e66eda 100644
--- a/core/res/res/anim/task_open_enter.xml
+++ b/core/res/res/anim/task_open_enter.xml
@@ -14,7 +14,9 @@
 ** See the License for the specific language governing permissions and
 ** limitations under the License.
 */
---><!-- This should in sync with task_open_enter_cross_profile_apps.xml -->
+-->
+<!-- This should in sync with task_open_enter_cross_profile_apps.xml -->
+<!-- This should in sync with cross_profile_apps_thumbnail_enter.xml -->
 <set xmlns:android="http://schemas.android.com/apk/res/android"
     android:shareInterpolator="false"
     android:zAdjustment="top">
diff --git a/core/res/res/drawable/ic_info_outline_24.xml b/core/res/res/drawable/ic_info_outline_24.xml
new file mode 100644
index 0000000..abba8cf
--- /dev/null
+++ b/core/res/res/drawable/ic_info_outline_24.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright (C) 2018 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License
+  -->
+
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M11,17h2v-6h-2v6zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8zM11,9h2L13,7h-2v2z"/>
+</vector>
diff --git a/core/res/res/layout/app_error_dialog.xml b/core/res/res/layout/app_error_dialog.xml
index d78ce59..c3b149a 100644
--- a/core/res/res/layout/app_error_dialog.xml
+++ b/core/res/res/layout/app_error_dialog.xml
@@ -18,48 +18,50 @@
 */
 -->
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:paddingTop="@dimen/aerr_padding_list_top"
+    android:paddingBottom="@dimen/aerr_padding_list_bottom">
+
+    <Button
+        android:id="@+id/aerr_restart"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:paddingTop="@dimen/aerr_padding_list_top"
-        android:paddingBottom="@dimen/aerr_padding_list_bottom">
-
+        android:text="@string/aerr_restart"
+        android:drawableStart="@drawable/ic_refresh"
+        style="@style/aerr_list_item" />
 
     <Button
-            android:id="@+id/aerr_restart"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/aerr_restart"
-            android:drawableStart="@drawable/ic_refresh"
-            style="@style/aerr_list_item"
-    />
+        android:id="@+id/aerr_app_info"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/app_info"
+        android:drawableStart="@drawable/ic_info_outline_24"
+        style="@style/aerr_list_item" />
 
     <Button
-            android:id="@+id/aerr_close"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/aerr_close_app"
-            android:drawableStart="@drawable/ic_close"
-            style="@style/aerr_list_item"
-    />
+        android:id="@+id/aerr_close"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/aerr_close_app"
+        android:drawableStart="@drawable/ic_close"
+        style="@style/aerr_list_item" />
 
     <Button
-            android:id="@+id/aerr_report"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/aerr_report"
-            android:drawableStart="@drawable/ic_feedback"
-            style="@style/aerr_list_item"
-    />
+        android:id="@+id/aerr_report"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/aerr_report"
+        android:drawableStart="@drawable/ic_feedback"
+        style="@style/aerr_list_item" />
 
     <Button
-            android:id="@+id/aerr_mute"
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:text="@string/aerr_mute"
-            android:drawableStart="@drawable/ic_eject_24dp"
-            style="@style/aerr_list_item"
-    />
-
+        android:id="@+id/aerr_mute"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/aerr_mute"
+        android:drawableStart="@drawable/ic_eject_24dp"
+        style="@style/aerr_list_item" />
 
 </LinearLayout>
diff --git a/core/res/res/values/colors_material.xml b/core/res/res/values/colors_material.xml
index f8a77f8..ce4ac61 100644
--- a/core/res/res/values/colors_material.xml
+++ b/core/res/res/values/colors_material.xml
@@ -44,7 +44,8 @@
 
     <color name="button_material_dark">#ff5a595b</color>
     <color name="button_material_light">#ffd6d7d7</color>
-    <color name="error_color_material">#F4511E</color>
+    <color name="error_color_material_dark">#ff7043</color><!-- deep orange 400 -->
+    <color name="error_color_material_light">#ff5722</color><!-- deep orange 500 -->
 
     <color name="switch_thumb_normal_material_dark">#ffbdbdbd</color>
     <color name="switch_thumb_normal_material_light">#fff1f1f1</color>
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 7e5a735..66e56bf 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -3256,8 +3256,8 @@
     <dimen name="config_buttonCornerRadius">@dimen/control_corner_material</dimen>
     <!-- Controls whether system buttons use all caps for text -->
     <bool name="config_buttonTextAllCaps">true</bool>
-    <!-- Name of the font family used for system buttons -->
-    <string name="config_fontFamilyButton">@string/font_family_button_material</string>
+    <!-- Name of the font family used for system surfaces where the font should use medium weight -->
+    <string name="config_headlineFontFamilyMedium">@string/font_family_button_material</string>
 
     <string translatable="false" name="config_batterySaverDeviceSpecificConfig"></string>
 
diff --git a/core/res/res/values/ids.xml b/core/res/res/values/ids.xml
index b40117e..c90a0df 100644
--- a/core/res/res/values/ids.xml
+++ b/core/res/res/values/ids.xml
@@ -163,4 +163,9 @@
   <!-- Action used to manually trigger an autofill request -->
   <item type="id" name="autofill" />
 
+    <!-- Accessibility action identifier for {@link android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction#ACTION_SHOW_TOOLTIP}. -->
+    <item type="id" name="accessibilityActionShowTooltip" />
+
+    <!-- Accessibility action identifier for {@link android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction#ACTION_HIDE_TOOLTIP}. -->
+    <item type="id" name="accessibilityActionHideTooltip" />
 </resources>
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index 9cdf553..80fc5db 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2874,6 +2874,8 @@
     </public-group>
 
     <public-group type="id" first-id="0x01020044">
+      <public name="accessibilityActionShowTooltip" />
+      <public name="accessibilityActionHideTooltip" />
     </public-group>
 
     <public-group type="string" first-id="0x0104001b">
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 4119cdc..69d96fc 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -916,6 +916,11 @@
     <string name="permdesc_persistentActivity" product="default">Allows the app to make parts of itself persistent in memory.  This can limit memory available to other apps slowing down the phone.</string>
 
     <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
+    <string name="permlab_foregroundService">run foreground service</string>
+    <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
+    <string name="permdesc_foregroundService">Allows the app to make use of foreground services.</string>
+
+    <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
     <string name="permlab_getPackageSize">measure app storage space</string>
     <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
     <string name="permdesc_getPackageSize">Allows the app to retrieve its code, data, and cache sizes</string>
@@ -1128,6 +1133,17 @@
     <string name="permdesc_manageOwnCalls">Allows the app to route its calls through the system in
         order to improve the calling experience.</string>
 
+    <!-- Title of an application permission.  When granted the user is giving access to a third
+         party app to continue a call which originated in another app.  For example, the user
+         could be in a voice call over their carrier's mobile network, and a third party video
+         calling app wants to continue that voice call as a video call. -->
+    <string name="permlab_acceptHandover">continue a call from another app</string>
+    <!-- Description of an application permission.  When granted the user is giving access to a
+         third party app to continue a call which originated in another app.  For example, the user
+         could be in a voice call over their carrier's mobile network, and a third party video
+         calling app wants to continue that voice call as a video call -->
+    <string name="permdesc_acceptHandovers">Allows the app to continue a call which was started in another app.</string>
+
     <!-- Title of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
     <string name="permlab_readPhoneNumbers">read phone numbers</string>
     <!-- Description of an application permission, listed so the user can choose whether they want to allow the application to do this. -->
@@ -2715,6 +2731,15 @@
     <!-- Label for item in the text selection menu to trigger adding a contact [CHAR LIMIT=20] -->
     <string name="add_contact">Add</string>
 
+    <!-- Label for item in the text selection menu to view the calendar for the selected time/date [CHAR LIMIT=20] -->
+    <string name="view_calendar">View</string>
+
+    <!-- Label for item in the text selection menu to create a calendar event at the selected time/date [CHAR LIMIT=20] -->
+    <string name="add_calendar_event">Schedule</string>
+
+    <!-- Label for item in the text selection menu to track a selected flight number [CHAR LIMIT=20] -->
+    <string name="view_flight">Track</string>
+
     <!-- If the device is getting low on internal storage, a notification is shown to the user.  This is the title of that notification. -->
     <string name="low_internal_storage_view_title">Storage space running out</string>
     <!-- If the device is getting low on internal storage, a notification is shown to the user.  This is the message of that notification. -->
@@ -3022,6 +3047,8 @@
 
     <!-- Notification title for a nearby open wireless network.-->
     <string name="wifi_available_title">Connect to open Wi\u2011Fi network</string>
+    <!-- Notification title for a nearby carrier wireless network.-->
+    <string name="wifi_available_carrier_network_title">Connect to carrier Wi\u2011Fi network</string>
     <!-- Notification title when the system is connecting to the specified open network. The network name is specified in the notification content. -->
     <string name="wifi_available_title_connecting">Connecting to open Wi\u2011Fi network</string>
     <!-- Notification title when the system has connected to the open network. The network name is specified in the notification content. -->
@@ -4616,6 +4643,11 @@
     <!-- Title for button to turn on work profile. [CHAR LIMIT=NONE] -->
     <string name="work_mode_turn_on">Turn on</string>
 
+    <!-- Message displayed in dialog when app is too old to run on this verison of android. [CHAR LIMIT=NONE] -->
+    <string name="deprecated_target_sdk_message">This app was built for an older version of Android and may not work properly. Try checking for updates, or contact the developer.</string>
+    <!-- Title for button to see application detail in app store which it came from - it may allow user to update to newer version. [CHAR LIMIT=50] -->
+    <string name="deprecated_target_sdk_app_store">Check for update</string>
+
     <!-- Notification title shown when new SMS/MMS is received while the device is locked [CHAR LIMIT=NONE] -->
     <string name="new_sms_notification_title">You have new messages</string>
     <!-- Notification content shown when new SMS/MMS is received while the device is locked [CHAR LIMIT=NONE] -->
diff --git a/core/res/res/values/styles_device_defaults.xml b/core/res/res/values/styles_device_defaults.xml
index 189b3b7..1a51c1d 100644
--- a/core/res/res/values/styles_device_defaults.xml
+++ b/core/res/res/values/styles_device_defaults.xml
@@ -225,7 +225,7 @@
     <style name="TextAppearance.DeviceDefault.SearchResult.Subtitle" parent="TextAppearance.Material.SearchResult.Subtitle"/>
     <style name="TextAppearance.DeviceDefault.Widget" parent="TextAppearance.Material.Widget"/>
     <style name="TextAppearance.DeviceDefault.Widget.Button" parent="TextAppearance.Material.Widget.Button">
-        <item name="fontFamily">@string/config_fontFamilyButton</item>
+        <item name="fontFamily">@string/config_headlineFontFamilyMedium</item>
         <item name="textAllCaps">@bool/config_buttonTextAllCaps</item>
     </style>
     <style name="TextAppearance.DeviceDefault.Widget.IconMenu.Item" parent="TextAppearance.Material.Widget.IconMenu.Item"/>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index fef40c4..710bbfb 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -533,6 +533,9 @@
   <java-symbol type="string" name="browse" />
   <java-symbol type="string" name="sms" />
   <java-symbol type="string" name="add_contact" />
+  <java-symbol type="string" name="view_calendar" />
+  <java-symbol type="string" name="add_calendar_event" />
+  <java-symbol type="string" name="view_flight" />
   <java-symbol type="string" name="textSelectionCABTitle" />
   <java-symbol type="string" name="BaMmi" />
   <java-symbol type="string" name="CLIRDefaultOffNextCallOff" />
@@ -1912,6 +1915,7 @@
   <java-symbol type="plurals" name="wifi_available" />
   <java-symbol type="plurals" name="wifi_available_detailed" />
   <java-symbol type="string" name="wifi_available_title" />
+  <java-symbol type="string" name="wifi_available_carrier_network_title" />
   <java-symbol type="string" name="wifi_available_title_connecting" />
   <java-symbol type="string" name="wifi_available_title_connected" />
   <java-symbol type="string" name="wifi_available_title_failed_to_connect" />
@@ -2653,6 +2657,7 @@
   <java-symbol type="id" name="aerr_report" />
   <java-symbol type="id" name="aerr_restart" />
   <java-symbol type="id" name="aerr_close" />
+  <java-symbol type="id" name="aerr_app_info" />
   <java-symbol type="id" name="aerr_mute" />
 
   <java-symbol type="string" name="status_bar_rotate" />
@@ -2701,6 +2706,9 @@
   <java-symbol type="string" name="work_mode_off_message" />
   <java-symbol type="string" name="work_mode_turn_on" />
 
+  <java-symbol type="string" name="deprecated_target_sdk_message" />
+  <java-symbol type="string" name="deprecated_target_sdk_app_store" />
+
   <!-- New SMS notification while phone is locked. -->
   <java-symbol type="string" name="new_sms_notification_title" />
   <java-symbol type="string" name="new_sms_notification_content" />
diff --git a/core/res/res/values/themes_material.xml b/core/res/res/values/themes_material.xml
index 9e6b1ab..15d8fb7 100644
--- a/core/res/res/values/themes_material.xml
+++ b/core/res/res/values/themes_material.xml
@@ -51,7 +51,7 @@
         <item name="primaryContentAlpha">@dimen/primary_content_alpha_material_dark</item>
         <item name="secondaryContentAlpha">@dimen/secondary_content_alpha_material_dark</item>
         <item name="backgroundDimAmount">0.6</item>
-        <item name="colorError">@color/error_color_material</item>
+        <item name="colorError">@color/error_color_material_dark</item>
 
         <!-- Text styles -->
         <item name="textAppearance">@style/TextAppearance.Material</item>
@@ -420,6 +420,7 @@
         <item name="primaryContentAlpha">@dimen/primary_content_alpha_material_light</item>
         <item name="secondaryContentAlpha">@dimen/secondary_content_alpha_material_light</item>
         <item name="backgroundDimAmount">0.6</item>
+        <item name="colorError">@color/error_color_material_light</item>
 
         <!-- Text styles -->
         <item name="textAppearance">@style/TextAppearance.Material</item>
@@ -811,6 +812,7 @@
         <item name="colorBackground">@color/background_material_light</item>
         <item name="colorBackgroundFloating">@color/background_floating_material_light</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_light</item>
+        <item name="colorError">@color/error_color_material_light</item>
 
         <item name="textColorPrimary">@color/text_color_primary</item>
         <item name="textColorPrimaryInverse">@color/primary_text_material_dark</item>
@@ -844,6 +846,7 @@
         <item name="colorBackground">@color/background_material_dark</item>
         <item name="colorBackgroundFloating">@color/background_floating_material_dark</item>
         <item name="colorBackgroundCacheHint">@color/background_cache_hint_selector_material_dark</item>
+        <item name="colorError">@color/error_color_material_dark</item>
 
         <item name="textColorPrimary">@color/text_color_primary</item>
         <item name="textColorPrimaryInverse">@color/primary_text_material_light</item>
diff --git a/core/res/res/xml/power_profile.xml b/core/res/res/xml/power_profile.xml
index bc4b10f..d80c697 100644
--- a/core/res/res/xml/power_profile.xml
+++ b/core/res/res/xml/power_profile.xml
@@ -127,4 +127,11 @@
   </array>
   <item name="modem.controller.voltage">0</item>
 
+  <!-- GPS related values. Default is 0.-->
+  <array name="gps.signalqualitybased"> <!-- Strength 0 to 1 -->
+    <value>0</value>
+    <value>0</value>
+  </array>
+  <item name="gps.voltage">0</item>
+
 </device>
diff --git a/core/tests/BroadcastRadioTests/src/android/hardware/radio/tests/functional/RadioTunerTest.java b/core/tests/BroadcastRadioTests/src/android/hardware/radio/tests/functional/RadioTunerTest.java
index 896fd15..370659e 100644
--- a/core/tests/BroadcastRadioTests/src/android/hardware/radio/tests/functional/RadioTunerTest.java
+++ b/core/tests/BroadcastRadioTests/src/android/hardware/radio/tests/functional/RadioTunerTest.java
@@ -122,6 +122,7 @@
 
     private void resetCallback() {
         verify(mCallback, atLeast(0)).onMetadataChanged(any());
+        verify(mCallback, atLeast(0)).onProgramInfoChanged(any());
         verifyNoMoreInteractions(mCallback);
         Mockito.reset(mCallback);
     }
diff --git a/core/tests/coretests/AndroidManifest.xml b/core/tests/coretests/AndroidManifest.xml
index e094772..53c22f6 100644
--- a/core/tests/coretests/AndroidManifest.xml
+++ b/core/tests/coretests/AndroidManifest.xml
@@ -51,6 +51,7 @@
     <uses-permission android:name="android.permission.CLEAR_APP_USER_DATA" />
     <uses-permission android:name="android.permission.DELETE_CACHE_FILES" />
     <uses-permission android:name="android.permission.DOWNLOAD_CACHE_NON_PURGEABLE" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.GET_PACKAGE_SIZE" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.INJECT_EVENTS" />
@@ -1044,6 +1045,13 @@
             </intent-filter>
         </activity>
 
+        <activity android:name="android.view.menu.ContextMenuActivity" android:label="ContextMenu" android:theme="@android:style/Theme.Material">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST" />
+            </intent-filter>
+        </activity>
+
         <activity android:name="android.view.menu.MenuWith1Item" android:label="MenuWith1Item">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
diff --git a/core/tests/coretests/res/layout/context_menu.xml b/core/tests/coretests/res/layout/context_menu.xml
new file mode 100644
index 0000000..3b9e2bd
--- /dev/null
+++ b/core/tests/coretests/res/layout/context_menu.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 2018, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+    <LinearLayout
+            android:id="@+id/context_menu_target_ltr"
+            android:orientation="horizontal"
+            android:layoutDirection="ltr"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="50px"
+            android:layout_marginEnd="50px">
+        <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="LTR"/>
+    </LinearLayout>
+
+    <LinearLayout
+            android:id="@+id/context_menu_target_rtl"
+            android:orientation="horizontal"
+            android:layoutDirection="rtl"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="50px"
+            android:layout_marginEnd="50px">
+        <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="RTL"/>
+    </LinearLayout>
+
+</LinearLayout>
diff --git a/core/tests/coretests/src/android/os/BrightnessLimit.java b/core/tests/coretests/src/android/os/BrightnessLimit.java
index 43cd373..fabcf3d 100644
--- a/core/tests/coretests/src/android/os/BrightnessLimit.java
+++ b/core/tests/coretests/src/android/os/BrightnessLimit.java
@@ -16,12 +16,9 @@
 
 package android.os;
 
-import android.os.IPowerManager;
-
 import android.app.Activity;
+import android.hardware.display.DisplayManager;
 import android.os.Bundle;
-import android.os.RemoteException;
-import android.os.ServiceManager;
 import android.provider.Settings;
 import android.view.View;
 import android.view.View.OnClickListener;
@@ -37,23 +34,16 @@
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        
+
         setContentView(R.layout.brightness_limit);
-        
+
         Button b = findViewById(R.id.go);
         b.setOnClickListener(this);
     }
 
     public void onClick(View v) {
-        IPowerManager power = IPowerManager.Stub.asInterface(
-                ServiceManager.getService("power"));
-        if (power != null) {
-            try {
-                power.setTemporaryScreenBrightnessSettingOverride(0);
-            } catch (RemoteException darn) {
-                
-            }
-        }
+        DisplayManager dm = getSystemService(DisplayManager.class);
+        dm.setTemporaryBrightness(0);
         Settings.System.putInt(getContentResolver(), Settings.System.SCREEN_BRIGHTNESS, 0);
     }
 }
diff --git a/core/tests/coretests/src/android/os/PowerManagerTest.java b/core/tests/coretests/src/android/os/PowerManagerTest.java
index 9893c16..0d250b8 100644
--- a/core/tests/coretests/src/android/os/PowerManagerTest.java
+++ b/core/tests/coretests/src/android/os/PowerManagerTest.java
@@ -21,9 +21,9 @@
 import android.test.suitebuilder.annotation.SmallTest;
 
 public class PowerManagerTest extends AndroidTestCase {
-    
+
     private PowerManager mPm;
-    
+
     /**
      * Setup any common data for the upcoming tests.
      */
@@ -32,10 +32,10 @@
         super.setUp();
         mPm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
     }
-    
+
     /**
      * Confirm that the setup is good.
-     * 
+     *
      * @throws Exception
      */
     @SmallTest
@@ -45,7 +45,7 @@
 
     /**
      * Confirm that we can create functional wakelocks.
-     * 
+     *
      * @throws Exception
      */
     @SmallTest
@@ -61,22 +61,19 @@
 
         wl = mPm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "PARTIAL_WAKE_LOCK");
         doTestWakeLock(wl);
-        
-        doTestSetBacklightBrightness();
 
-        // TODO: Some sort of functional test (maybe not in the unit test here?) 
+        // TODO: Some sort of functional test (maybe not in the unit test here?)
         // that confirms that things are really happening e.g. screen power, keyboard power.
 }
-    
+
     /**
      * Confirm that we can't create dysfunctional wakelocks.
-     * 
+     *
      * @throws Exception
      */
     @SmallTest
     public void testBadNewWakeLock() throws Exception {
-        
-        final int badFlags = PowerManager.SCREEN_BRIGHT_WAKE_LOCK 
+        final int badFlags = PowerManager.SCREEN_BRIGHT_WAKE_LOCK
                             | PowerManager.SCREEN_DIM_WAKE_LOCK;
         // wrap in try because we want the error here
         try {
@@ -86,10 +83,10 @@
         }
         fail("Bad WakeLock flag was not caught.");
     }
-    
+
     /**
      * Apply a few tests to a wakelock to make sure it's healthy.
-     * 
+     *
      * @param wl The wakelock to be tested.
      */
     private void doTestWakeLock(PowerManager.WakeLock wl) {
@@ -98,7 +95,7 @@
         assertTrue(wl.isHeld());
         wl.release();
         assertFalse(wl.isHeld());
-        
+
         // Try ref-counted acquire/release
         wl.setReferenceCounted(true);
         wl.acquire();
@@ -109,7 +106,7 @@
         assertTrue(wl.isHeld());
         wl.release();
         assertFalse(wl.isHeld());
-        
+
         // Try non-ref-counted
         wl.setReferenceCounted(false);
         wl.acquire();
@@ -118,24 +115,7 @@
         assertTrue(wl.isHeld());
         wl.release();
         assertFalse(wl.isHeld());
-        
+
         // TODO: Threaded test (needs handler) to make sure timed wakelocks work too
     }
-    
- 
-    /**
-     * Test that calling {@link android.os.IHardwareService#setBacklights(int)} requires
-     * permissions.
-     * <p>Tests permission:
-     *   {@link android.Manifest.permission#DEVICE_POWER}
-     */
-    private void doTestSetBacklightBrightness() {
-        try {
-            mPm.setBacklightBrightness(0);
-            fail("setBacklights did not throw SecurityException as expected");
-        } catch (SecurityException e) {
-            // expected
-        }
-    }
-
 }
diff --git a/core/tests/coretests/src/android/os/WorkSourceTest.java b/core/tests/coretests/src/android/os/WorkSourceTest.java
index a427a2f..952a64d 100644
--- a/core/tests/coretests/src/android/os/WorkSourceTest.java
+++ b/core/tests/coretests/src/android/os/WorkSourceTest.java
@@ -349,6 +349,15 @@
         assertEquals(100, wc.getAttributionUid());
     }
 
+    public void testGetAttributionTag() {
+        WorkSource ws1 = new WorkSource();
+        WorkChain wc = ws1.createWorkChain();
+        wc.addNode(100, "tag");
+        assertEquals("tag", wc.getAttributionTag());
+        wc.addNode(200, "tag2");
+        assertEquals("tag", wc.getAttributionTag());
+    }
+
     public void testRemove_fromChainedWorkSource() {
         WorkSource ws1 = new WorkSource();
         ws1.createWorkChain().addNode(50, "foo");
@@ -368,4 +377,25 @@
         assertEquals(1, ws1.getWorkChains().size());
         assertEquals(75, ws1.getWorkChains().get(0).getAttributionUid());
     }
+
+    public void testTransferWorkChains() {
+        WorkSource ws1 = new WorkSource();
+        WorkChain wc1 = ws1.createWorkChain().addNode(100, "tag");
+        WorkChain wc2 = ws1.createWorkChain().addNode(200, "tag2");
+
+        WorkSource ws2 = new WorkSource();
+        ws2.transferWorkChains(ws1);
+
+        assertEquals(0, ws1.getWorkChains().size());
+        assertEquals(2, ws2.getWorkChains().size());
+        assertSame(wc1, ws2.getWorkChains().get(0));
+        assertSame(wc2, ws2.getWorkChains().get(1));
+
+        ws1.clear();
+        ws1.createWorkChain().addNode(300, "tag3");
+        ws1.transferWorkChains(ws2);
+        assertEquals(0, ws2.getWorkChains().size());
+        assertSame(wc1, ws1.getWorkChains().get(0));
+        assertSame(wc2, ws1.getWorkChains().get(1));
+    }
 }
diff --git a/core/tests/coretests/src/android/provider/SettingsBackupTest.java b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
index 09ac1d8..2f747ec 100644
--- a/core/tests/coretests/src/android/provider/SettingsBackupTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsBackupTest.java
@@ -44,6 +44,12 @@
 public class SettingsBackupTest {
 
     /**
+     * see {@link com.google.android.systemui.power.EnhancedEstimatesGoogleImpl} for more details
+     */
+    public static final String HYBRID_SYSUI_BATTERY_WARNING_FLAGS =
+            "hybrid_sysui_battery_warning_flags";
+
+    /**
      * The following blacklists contain settings that should *not* be backed up and restored to
      * another device.  As a general rule, anything that is not user configurable should be
      * blacklisted (and conversely, things that *are* user configurable *should* be backed up)
@@ -114,6 +120,12 @@
                     Settings.Global.BATTERY_SAVER_DEVICE_SPECIFIC_CONSTANTS,
                     Settings.Global.BATTERY_STATS_CONSTANTS,
                     Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE,
+                    Settings.Global.BLE_SCAN_LOW_POWER_WINDOW_MS,
+                    Settings.Global.BLE_SCAN_LOW_POWER_INTERVAL_MS,
+                    Settings.Global.BLE_SCAN_BALANCED_WINDOW_MS,
+                    Settings.Global.BLE_SCAN_BALANCED_INTERVAL_MS,
+                    Settings.Global.BLE_SCAN_LOW_LATENCY_WINDOW_MS,
+                    Settings.Global.BLE_SCAN_LOW_LATENCY_INTERVAL_MS,
                     Settings.Global.BLUETOOTH_A2DP_SINK_PRIORITY_PREFIX,
                     Settings.Global.BLUETOOTH_A2DP_SRC_PRIORITY_PREFIX,
                     Settings.Global.BLUETOOTH_A2DP_SUPPORTS_OPTIONAL_CODECS_PREFIX,
@@ -226,6 +238,7 @@
                     Settings.Global.HDMI_SYSTEM_AUDIO_CONTROL_ENABLED,
                     Settings.Global.HEADS_UP_NOTIFICATIONS_ENABLED,
                     Settings.Global.HTTP_PROXY,
+                    HYBRID_SYSUI_BATTERY_WARNING_FLAGS,
                     Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY,
                     Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY,
                     Settings.Global.INSTANT_APP_DEXOPT_ENABLED,
@@ -332,7 +345,9 @@
                     Settings.Global.SETUP_PREPAID_DETECTION_TARGET_URL,
                     Settings.Global.SHORTCUT_MANAGER_CONSTANTS,
                     Settings.Global.SHOW_FIRST_CRASH_DIALOG,
+                    Settings.Global.SHOW_MUTE_IN_CRASH_DIALOG,
                     Settings.Global.SHOW_NOTIFICATION_CHANNEL_WARNINGS,
+                    Settings.Global.SHOW_RESTART_IN_CRASH_DIALOG,
                     Settings.Global.SHOW_TEMPERATURE_WARNING,
                     Settings.Global.SMART_SELECTION_UPDATE_CONTENT_URL,
                     Settings.Global.SMART_SELECTION_UPDATE_METADATA_URL,
@@ -429,7 +444,8 @@
                     Settings.Global.ZEN_MODE_CONFIG_ETAG,
                     Settings.Global.ZEN_MODE_RINGER_LEVEL,
                     Settings.Global.ZRAM_ENABLED,
-                    Settings.Global.OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION);
+                    Settings.Global.OVERRIDE_SETTINGS_PROVIDER_RESTORE_ANY_VERSION,
+                    Settings.Global.CHAINED_BATTERY_ATTRIBUTION_ENABLED);
 
     private static final Set<String> BACKUP_BLACKLISTED_SECURE_SETTINGS =
              newHashSet(
@@ -481,6 +497,7 @@
                  Settings.Secure.INPUT_METHODS_SUBTYPE_HISTORY,
                  Settings.Secure.INSTALL_NON_MARKET_APPS,
                  Settings.Secure.LAST_SETUP_SHOWN,
+                 Settings.Secure.LOCATION_CHANGER,
                  Settings.Secure.LOCATION_MODE,
                  Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, // Candidate?
                  Settings.Secure.LOCK_SCREEN_ALLOW_REMOTE_INPUT, // Candidate?
@@ -538,7 +555,8 @@
                  Settings.Secure.BACKUP_MANAGER_CONSTANTS,
                  Settings.Secure.KEYGUARD_SLICE_URI,
                  Settings.Secure.PARENTAL_CONTROL_ENABLED,
-                 Settings.Secure.PARENTAL_CONTROL_REDIRECT_URL);
+                 Settings.Secure.PARENTAL_CONTROL_REDIRECT_URL,
+                 Settings.Secure.BLUETOOTH_ON_WHILE_DRIVING);
 
     @Test
     public void systemSettingsBackedUpOrBlacklisted() {
diff --git a/core/tests/coretests/src/android/provider/SettingsValidatorsTest.java b/core/tests/coretests/src/android/provider/SettingsValidatorsTest.java
index 4c4aeaf..e750766 100644
--- a/core/tests/coretests/src/android/provider/SettingsValidatorsTest.java
+++ b/core/tests/coretests/src/android/provider/SettingsValidatorsTest.java
@@ -17,6 +17,8 @@
 package android.provider;
 
 import static org.junit.Assert.fail;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
 
 import android.platform.test.annotations.Presubmit;
 import android.provider.SettingsValidators.Validator;
@@ -28,13 +30,101 @@
 
 import java.util.Map;
 
-/** Tests that ensure all backed up settings have non-null validators. */
+/**
+ * Tests that ensure all backed up settings have non-null validators. Also, common validators
+ * are tested.
+ */
 @Presubmit
 @RunWith(AndroidJUnit4.class)
 @SmallTest
 public class SettingsValidatorsTest {
 
     @Test
+    public void testNonNegativeIntegerValidator() {
+        assertTrue(SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR.validate("1"));
+        assertTrue(SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR.validate("0"));
+        assertFalse(SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR.validate("-1"));
+        assertFalse(SettingsValidators.NON_NEGATIVE_INTEGER_VALIDATOR.validate("rectangle"));
+    }
+
+    @Test
+    public void testAnyIntegerValidator() {
+        assertTrue(SettingsValidators.ANY_INTEGER_VALIDATOR.validate("1"));
+        assertTrue(SettingsValidators.ANY_INTEGER_VALIDATOR.validate("0"));
+        assertTrue(SettingsValidators.ANY_INTEGER_VALIDATOR.validate("-1"));
+        assertFalse(SettingsValidators.ANY_INTEGER_VALIDATOR.validate("rectangle"));
+    }
+
+    @Test
+    public void testComponentNameValidator() {
+        assertTrue(SettingsValidators.COMPONENT_NAME_VALIDATOR.validate(
+                "android/com.android.internal.backup.LocalTransport"));
+        assertFalse(SettingsValidators.COMPONENT_NAME_VALIDATOR.validate("rectangle"));
+    }
+
+    @Test
+    public void testLocaleValidator() {
+        assertTrue(SettingsValidators.LOCALE_VALIDATOR.validate("en_US"));
+        assertTrue(SettingsValidators.LOCALE_VALIDATOR.validate("es"));
+        assertFalse(SettingsValidators.LOCALE_VALIDATOR.validate("rectangle"));
+    }
+
+    @Test
+    public void testPackageNameValidator() {
+        assertTrue(SettingsValidators.PACKAGE_NAME_VALIDATOR.validate(
+                "com.google.android"));
+        assertFalse(SettingsValidators.PACKAGE_NAME_VALIDATOR.validate("com.google.@android"));
+        assertFalse(SettingsValidators.PACKAGE_NAME_VALIDATOR.validate(".com.google.android"));
+        assertFalse(SettingsValidators.PACKAGE_NAME_VALIDATOR.validate(".com.google.5android"));
+    }
+
+    @Test
+    public void testDiscreteValueValidator() {
+        String[] beerTypes = new String[]{"Ale", "American IPA", "Stout"};
+        Validator v = new SettingsValidators.DiscreteValueValidator(beerTypes);
+        assertTrue(v.validate("Ale"));
+        assertTrue(v.validate("American IPA"));
+        assertTrue(v.validate("Stout"));
+        assertFalse(v.validate("Cider")); // just juice pretending to be beer
+    }
+
+    @Test
+    public void testInclusiveIntegerRangeValidator() {
+        Validator v = new SettingsValidators.InclusiveIntegerRangeValidator(0, 5);
+        assertTrue(v.validate("0"));
+        assertTrue(v.validate("2"));
+        assertTrue(v.validate("5"));
+        assertFalse(v.validate("-1"));
+        assertFalse(v.validate("6"));
+    }
+
+    @Test
+    public void testInclusiveFloatRangeValidator() {
+        Validator v = new SettingsValidators.InclusiveFloatRangeValidator(0.0f, 5.0f);
+        assertTrue(v.validate("0.0"));
+        assertTrue(v.validate("2.0"));
+        assertTrue(v.validate("5.0"));
+        assertFalse(v.validate("-1.0"));
+        assertFalse(v.validate("6.0"));
+    }
+
+    @Test
+    public void testComponentNameListValidator() {
+        Validator v = new SettingsValidators.ComponentNameListValidator(",");
+        assertTrue(v.validate("android/com.android.internal.backup.LocalTransport,"
+                + "com.google.android.gms/.backup.migrate.service.D2dTransport"));
+        assertFalse(v.validate("com.google.5android,android"));
+    }
+
+    @Test
+    public void testPackageNameListValidator() {
+        Validator v = new SettingsValidators.PackageNameListValidator(",");
+        assertTrue(v.validate("com.android.internal.backup.LocalTransport,com.google.android.gms"));
+        assertFalse(v.validate("5com.android.internal.backup.LocalTransport,android"));
+    }
+
+
+    @Test
     public void ensureAllBackedUpSystemSettingsHaveValidators() {
         String offenders = getOffenders(concat(Settings.System.SETTINGS_TO_BACKUP,
                 Settings.System.LEGACY_RESTORE_SETTINGS), Settings.System.VALIDATORS);
diff --git a/core/tests/coretests/src/android/text/MeasuredParagraphTest.java b/core/tests/coretests/src/android/text/MeasuredParagraphTest.java
index f6300ee..6f1d47d 100644
--- a/core/tests/coretests/src/android/text/MeasuredParagraphTest.java
+++ b/core/tests/coretests/src/android/text/MeasuredParagraphTest.java
@@ -132,7 +132,7 @@
     public void buildForStaticLayout() {
         MeasuredParagraph mt = null;
 
-        mt = MeasuredParagraph.buildForStaticLayout(PAINT, "XXX", 0, 3, LTR, false, null);
+        mt = MeasuredParagraph.buildForStaticLayout(PAINT, "XXX", 0, 3, LTR, false, false, null);
         assertNotNull(mt);
         assertNotNull(mt.getChars());
         assertEquals("XXX", charsToString(mt.getChars()));
@@ -147,7 +147,7 @@
 
         // Recycle it
         MeasuredParagraph mt2 =
-                MeasuredParagraph.buildForStaticLayout(PAINT, "_VVV_", 1, 4, RTL, false, mt);
+                MeasuredParagraph.buildForStaticLayout(PAINT, "_VVV_", 1, 4, RTL, false, false, mt);
         assertEquals(mt2, mt);
         assertNotNull(mt2.getChars());
         assertEquals("VVV", charsToString(mt.getChars()));
diff --git a/core/tests/coretests/src/android/util/PollingCheck.java b/core/tests/coretests/src/android/util/PollingCheck.java
new file mode 100644
index 0000000..468b9b2
--- /dev/null
+++ b/core/tests/coretests/src/android/util/PollingCheck.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.util;
+
+import org.junit.Assert;
+
+/**
+ * Utility used for testing that allows to poll for a certain condition to happen within a timeout.
+ *
+ * Code copied from com.android.compatibility.common.util.PollingCheck
+ */
+public abstract class PollingCheck {
+
+    private static final long DEFAULT_TIMEOUT = 3000;
+    private static final long TIME_SLICE = 50;
+    private final long mTimeout;
+
+    /**
+     * The condition that the PollingCheck should use to proceed successfully.
+     */
+    public interface PollingCheckCondition {
+
+        /**
+         * @return Whether the polling condition has been met.
+         */
+        boolean canProceed();
+    }
+
+    public PollingCheck(long timeout) {
+        mTimeout = timeout;
+    }
+
+    protected abstract boolean check();
+
+    /**
+     * Start running the polling check.
+     */
+    public void run() {
+        if (check()) {
+            return;
+        }
+
+        long timeout = mTimeout;
+        while (timeout > 0) {
+            try {
+                Thread.sleep(TIME_SLICE);
+            } catch (InterruptedException e) {
+                Assert.fail("unexpected InterruptedException");
+            }
+
+            if (check()) {
+                return;
+            }
+
+            timeout -= TIME_SLICE;
+        }
+
+        Assert.fail("unexpected timeout");
+    }
+
+    /**
+     * Instantiate and start polling for a given condition with a default 3000ms timeout.
+     *
+     * @param condition The condition to check for success.
+     */
+    public static void waitFor(final PollingCheckCondition condition) {
+        new PollingCheck(DEFAULT_TIMEOUT) {
+            @Override
+            protected boolean check() {
+                return condition.canProceed();
+            }
+        }.run();
+    }
+
+    /**
+     * Instantiate and start polling for a given condition.
+     *
+     * @param timeout Time out in ms
+     * @param condition The condition to check for success.
+     */
+    public static void waitFor(long timeout, final PollingCheckCondition condition) {
+        new PollingCheck(timeout) {
+            @Override
+            protected boolean check() {
+                return condition.canProceed();
+            }
+        }.run();
+    }
+}
+
diff --git a/core/tests/coretests/src/android/view/menu/ContextMenuActivity.java b/core/tests/coretests/src/android/view/menu/ContextMenuActivity.java
new file mode 100644
index 0000000..830b3d5
--- /dev/null
+++ b/core/tests/coretests/src/android/view/menu/ContextMenuActivity.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.view.menu;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.view.ContextMenu;
+import android.view.ContextMenu.ContextMenuInfo;
+import android.view.View;
+
+import com.android.frameworks.coretests.R;
+
+public class ContextMenuActivity extends Activity {
+
+    static final String LABEL_ITEM = "Item";
+    static final String LABEL_SUBMENU = "Submenu";
+    static final String LABEL_SUBITEM = "Subitem";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.context_menu);
+        registerForContextMenu(getTargetLtr());
+        registerForContextMenu(getTargetRtl());
+    }
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
+        menu.add(LABEL_ITEM);
+        menu.addSubMenu(LABEL_SUBMENU).add(LABEL_SUBITEM);
+    }
+
+    View getTargetLtr() {
+        return findViewById(R.id.context_menu_target_ltr);
+    }
+
+    View getTargetRtl() {
+        return findViewById(R.id.context_menu_target_rtl);
+    }
+}
diff --git a/core/tests/coretests/src/android/view/menu/ContextMenuTest.java b/core/tests/coretests/src/android/view/menu/ContextMenuTest.java
new file mode 100644
index 0000000..59d4e55
--- /dev/null
+++ b/core/tests/coretests/src/android/view/menu/ContextMenuTest.java
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.view.menu;
+
+import android.content.Context;
+import android.graphics.Point;
+import android.support.test.filters.MediumTest;
+import android.test.ActivityInstrumentationTestCase;
+import android.util.PollingCheck;
+import android.view.Display;
+import android.view.View;
+import android.view.WindowManager;
+import android.widget.espresso.ContextMenuUtils;
+
+@MediumTest
+public class ContextMenuTest extends ActivityInstrumentationTestCase<ContextMenuActivity> {
+
+    public ContextMenuTest() {
+        super("com.android.frameworks.coretests", ContextMenuActivity.class);
+    }
+
+    public void testContextMenuPositionLtr() throws InterruptedException {
+        testMenuPosition(getActivity().getTargetLtr());
+    }
+
+    public void testContextMenuPositionRtl() throws InterruptedException {
+        testMenuPosition(getActivity().getTargetRtl());
+    }
+
+    private void testMenuPosition(View target) throws InterruptedException {
+        final int minScreenDimension = getMinScreenDimension();
+        if (minScreenDimension < 320) {
+            // Assume there is insufficient room for the context menu to be aligned properly.
+            return;
+        }
+
+        int offsetX = target.getWidth() / 2;
+        int offsetY = target.getHeight() / 2;
+
+        getInstrumentation().runOnMainSync(() -> target.performLongClick(offsetX, offsetY));
+
+        PollingCheck.waitFor(
+                () -> ContextMenuUtils.isMenuItemClickable(ContextMenuActivity.LABEL_SUBMENU));
+
+        ContextMenuUtils.assertContextMenuAlignment(target, offsetX, offsetY);
+
+        ContextMenuUtils.clickMenuItem(ContextMenuActivity.LABEL_SUBMENU);
+
+        PollingCheck.waitFor(
+                () -> ContextMenuUtils.isMenuItemClickable(ContextMenuActivity.LABEL_SUBITEM));
+
+        if (minScreenDimension < getCascadingMenuTreshold()) {
+            // A non-cascading submenu should be displayed at the same location as its parent.
+            // Not testing cascading submenu position, as it is positioned differently.
+            ContextMenuUtils.assertContextMenuAlignment(target, offsetX, offsetY);
+        }
+    }
+
+    /**
+     * Returns the minimum of the default display's width and height.
+     */
+    private int getMinScreenDimension() {
+        final WindowManager windowManager = (WindowManager) getActivity().getSystemService(
+                Context.WINDOW_SERVICE);
+        final Display display = windowManager.getDefaultDisplay();
+        final Point displaySize = new Point();
+        display.getRealSize(displaySize);
+        return Math.min(displaySize.x, displaySize.y);
+    }
+
+    /**
+     * Returns the minimum display size where cascading submenus are supported.
+     */
+    private int getCascadingMenuTreshold() {
+        // Use the same dimension resource as in MenuPopupHelper.createPopup().
+        return getActivity().getResources().getDimensionPixelSize(
+                com.android.internal.R.dimen.cascading_menus_min_smallest_width);
+    }
+}
diff --git a/core/tests/coretests/src/android/view/textclassifier/TextClassificationTest.java b/core/tests/coretests/src/android/view/textclassifier/TextClassificationTest.java
index 9ee7fac..8a81743 100644
--- a/core/tests/coretests/src/android/view/textclassifier/TextClassificationTest.java
+++ b/core/tests/coretests/src/android/view/textclassifier/TextClassificationTest.java
@@ -32,7 +32,9 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
+import java.util.Calendar;
 import java.util.Locale;
+import java.util.TimeZone;
 
 @SmallTest
 @RunWith(AndroidJUnit4.class)
@@ -146,8 +148,12 @@
 
     @Test
     public void testParcelOptions() {
+        Calendar referenceTime = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.US);
+        referenceTime.setTimeInMillis(946771200000L);  // 2000-01-02
+
         TextClassification.Options reference = new TextClassification.Options();
         reference.setDefaultLocales(new LocaleList(Locale.US, Locale.GERMANY));
+        reference.setReferenceTime(referenceTime);
 
         // Parcel and unparcel.
         final Parcel parcel = Parcel.obtain();
@@ -157,5 +163,6 @@
                 parcel);
 
         assertEquals("en-US,de-DE", result.getDefaultLocales().toLanguageTags());
+        assertEquals(referenceTime, result.getReferenceTime());
     }
 }
diff --git a/core/tests/coretests/src/android/widget/espresso/ContextMenuUtils.java b/core/tests/coretests/src/android/widget/espresso/ContextMenuUtils.java
index c8218aa..02ee9be 100644
--- a/core/tests/coretests/src/android/widget/espresso/ContextMenuUtils.java
+++ b/core/tests/coretests/src/android/widget/espresso/ContextMenuUtils.java
@@ -17,25 +17,33 @@
 package android.widget.espresso;
 
 import static android.support.test.espresso.Espresso.onView;
+import static android.support.test.espresso.action.ViewActions.click;
 import static android.support.test.espresso.assertion.ViewAssertions.matches;
 import static android.support.test.espresso.matcher.RootMatchers.withDecorView;
 import static android.support.test.espresso.matcher.ViewMatchers.hasDescendant;
 import static android.support.test.espresso.matcher.ViewMatchers.hasFocus;
 import static android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom;
 import static android.support.test.espresso.matcher.ViewMatchers.isDisplayed;
+import static android.support.test.espresso.matcher.ViewMatchers.isDisplayingAtLeast;
 import static android.support.test.espresso.matcher.ViewMatchers.isEnabled;
 import static android.support.test.espresso.matcher.ViewMatchers.withText;
+
 import static org.hamcrest.Matchers.allOf;
 import static org.hamcrest.Matchers.not;
 
-import com.android.internal.view.menu.ListMenuItemView;
-
 import android.support.test.espresso.NoMatchingRootException;
 import android.support.test.espresso.NoMatchingViewException;
 import android.support.test.espresso.ViewInteraction;
 import android.support.test.espresso.matcher.ViewMatchers;
+import android.view.View;
 import android.widget.MenuPopupWindow.MenuDropDownListView;
 
+import com.android.internal.view.menu.ListMenuItemView;
+
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.hamcrest.TypeSafeMatcher;
+
 /**
  * Espresso utility methods for the context menu.
  */
@@ -82,10 +90,15 @@
     private static void asssertContextMenuContainsItemWithEnabledState(String itemLabel,
             boolean enabled) {
         onContextMenu().check(matches(
-                hasDescendant(allOf(
-                        isAssignableFrom(ListMenuItemView.class),
-                        enabled ? isEnabled() : not(isEnabled()),
-                        hasDescendant(withText(itemLabel))))));
+                hasDescendant(getVisibleMenuItemMatcher(itemLabel, enabled))));
+    }
+
+    private static Matcher<View> getVisibleMenuItemMatcher(String itemLabel, boolean enabled) {
+        return allOf(
+                isAssignableFrom(ListMenuItemView.class),
+                hasDescendant(withText(itemLabel)),
+                enabled ? isEnabled() : not(isEnabled()),
+                isDisplayingAtLeast(90));
     }
 
     /**
@@ -107,4 +120,70 @@
     public static void assertContextMenuContainsItemDisabled(String itemLabel) {
         asssertContextMenuContainsItemWithEnabledState(itemLabel, false);
     }
+
+    /**
+     * Asserts that the context menu window is aligned to a given view with a given offset.
+     *
+     * @param anchor Anchor view.
+     * @param offsetX x offset
+     * @param offsetY y offset.
+     * @throws AssertionError if the assertion fails
+     */
+    public static void assertContextMenuAlignment(View anchor, int offsetX, int offsetY) {
+        int [] expectedLocation = new int[2];
+        anchor.getLocationOnScreen(expectedLocation);
+        expectedLocation[0] += offsetX;
+        expectedLocation[1] += offsetY;
+
+        final boolean rtl = anchor.getLayoutDirection() == View.LAYOUT_DIRECTION_RTL;
+
+        onContextMenu().check(matches(new TypeSafeMatcher<View>() {
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("root view ");
+                description.appendText(rtl ? "right" : "left");
+                description.appendText("=");
+                description.appendText(Integer.toString(offsetX));
+                description.appendText(", top=");
+                description.appendText(Integer.toString(offsetY));
+            }
+
+            @Override
+            public boolean matchesSafely(View view) {
+                View rootView = view.getRootView();
+                int [] actualLocation = new int[2];
+                rootView.getLocationOnScreen(actualLocation);
+                if (rtl) {
+                    actualLocation[0] += rootView.getWidth();
+                }
+                return expectedLocation[0] == actualLocation[0]
+                    && expectedLocation[1] == actualLocation[1];
+            }
+        }));
+    }
+
+    /**
+     * Check is the menu item is clickable (i.e. visible and enabled).
+     *
+     * @param itemLabel Label of the item.
+     * @return True if the menu item is clickable.
+     */
+    public static boolean isMenuItemClickable(String itemLabel) {
+        try {
+            onContextMenu().check(matches(
+                    hasDescendant(getVisibleMenuItemMatcher(itemLabel, true))));
+            return true;
+        } catch (NoMatchingRootException | NoMatchingViewException | AssertionError e) {
+            return false;
+        }
+    }
+
+    /**
+     * Click on a menu item with the specified label
+     * @param itemLabel Label of the item.
+     */
+    public static void clickMenuItem(String itemLabel) {
+        onView(getVisibleMenuItemMatcher(itemLabel, true))
+                .inRoot(withDecorView(hasFocus())).perform(click());
+    }
 }
diff --git a/core/tests/coretests/src/com/android/internal/os/BatteryStatsNoteTest.java b/core/tests/coretests/src/com/android/internal/os/BatteryStatsNoteTest.java
index a55563a..82ac9da 100644
--- a/core/tests/coretests/src/com/android/internal/os/BatteryStatsNoteTest.java
+++ b/core/tests/coretests/src/com/android/internal/os/BatteryStatsNoteTest.java
@@ -23,10 +23,12 @@
 import android.os.BatteryManager;
 import android.os.BatteryStats;
 import android.os.BatteryStats.HistoryItem;
+import android.os.BatteryStats.Uid.Sensor;
 import android.os.WorkSource;
 import android.support.test.filters.SmallTest;
 import android.view.Display;
 
+import com.android.internal.os.BatteryStatsImpl.DualTimer;
 import com.android.internal.os.BatteryStatsImpl.Uid;
 import junit.framework.TestCase;
 
@@ -446,4 +448,52 @@
         pkg = bi.getPackageStatsLocked(100, "com.foo.baz_alternate");
         assertEquals(0, pkg.getWakeupAlarmStats().size());
     }
+
+    @SmallTest
+    public void testNoteGpsChanged() {
+        final MockClocks clocks = new MockClocks(); // holds realtime and uptime in ms
+        MockBatteryStatsImpl bi = new MockBatteryStatsImpl(clocks);
+        bi.setRecordAllHistoryLocked(true);
+        bi.forceRecordAllHistory();
+        bi.mForceOnBattery = true;
+
+        bi.updateTimeBasesLocked(true, Display.STATE_OFF, 0, 0);
+        bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_TOP);
+
+        WorkSource ws = new WorkSource();
+        ws.add(UID);
+
+        bi.noteGpsChangedLocked(new WorkSource(), ws);
+        DualTimer t = bi.getUidStatsLocked(UID).getSensorTimerLocked(Sensor.GPS, false);
+        assertNotNull(t);
+        assertTrue(t.isRunningLocked());
+
+        bi.noteGpsChangedLocked(ws, new WorkSource());
+        t = bi.getUidStatsLocked(UID).getSensorTimerLocked(Sensor.GPS, false);
+        assertFalse(t.isRunningLocked());
+    }
+
+    @SmallTest
+    public void testNoteGpsChanged_workSource() {
+        final MockClocks clocks = new MockClocks(); // holds realtime and uptime in ms
+        MockBatteryStatsImpl bi = new MockBatteryStatsImpl(clocks);
+        bi.setRecordAllHistoryLocked(true);
+        bi.forceRecordAllHistory();
+        bi.mForceOnBattery = true;
+
+        bi.updateTimeBasesLocked(true, Display.STATE_OFF, 0, 0);
+        bi.noteUidProcessStateLocked(UID, ActivityManager.PROCESS_STATE_TOP);
+
+        WorkSource ws = new WorkSource();
+        ws.createWorkChain().addNode(UID, "com.foo");
+
+        bi.noteGpsChangedLocked(new WorkSource(), ws);
+        DualTimer t = bi.getUidStatsLocked(UID).getSensorTimerLocked(Sensor.GPS, false);
+        assertNotNull(t);
+        assertTrue(t.isRunningLocked());
+
+        bi.noteGpsChangedLocked(ws, new WorkSource());
+        t = bi.getUidStatsLocked(UID).getSensorTimerLocked(Sensor.GPS, false);
+        assertFalse(t.isRunningLocked());
+    }
 }
diff --git a/core/tests/overlaytests/device/AndroidManifest.xml b/core/tests/overlaytests/device/AndroidManifest.xml
new file mode 100644
index 0000000..e01caee
--- /dev/null
+++ b/core/tests/overlaytests/device/AndroidManifest.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.server.om.test">
+
+    <uses-sdk android:minSdkVersion="21" />
+
+    <application>
+        <uses-library android:name="android.test.runner" />
+    </application>
+
+    <instrumentation android:name="android.support.test.runner.AndroidJUnitRunner"
+                     android:targetPackage="com.android.server.om.test" />
+
+</manifest>
diff --git a/core/tests/overlaytests/OverlayAppFiltered/Android.mk b/core/tests/overlaytests/device/OverlayAppFiltered/Android.mk
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFiltered/Android.mk
rename to core/tests/overlaytests/device/OverlayAppFiltered/Android.mk
diff --git a/core/tests/overlaytests/OverlayAppFiltered/AndroidManifest.xml b/core/tests/overlaytests/device/OverlayAppFiltered/AndroidManifest.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFiltered/AndroidManifest.xml
rename to core/tests/overlaytests/device/OverlayAppFiltered/AndroidManifest.xml
diff --git a/core/tests/overlaytests/OverlayAppFiltered/res/raw/lorem_ipsum.txt b/core/tests/overlaytests/device/OverlayAppFiltered/res/raw/lorem_ipsum.txt
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFiltered/res/raw/lorem_ipsum.txt
rename to core/tests/overlaytests/device/OverlayAppFiltered/res/raw/lorem_ipsum.txt
diff --git a/core/tests/overlaytests/OverlayAppFiltered/res/values/config.xml b/core/tests/overlaytests/device/OverlayAppFiltered/res/values/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFiltered/res/values/config.xml
rename to core/tests/overlaytests/device/OverlayAppFiltered/res/values/config.xml
diff --git a/core/tests/overlaytests/OverlayAppFiltered/res/xml/integer.xml b/core/tests/overlaytests/device/OverlayAppFiltered/res/xml/integer.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFiltered/res/xml/integer.xml
rename to core/tests/overlaytests/device/OverlayAppFiltered/res/xml/integer.xml
diff --git a/core/tests/overlaytests/OverlayAppFirst/Android.mk b/core/tests/overlaytests/device/OverlayAppFirst/Android.mk
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/Android.mk
rename to core/tests/overlaytests/device/OverlayAppFirst/Android.mk
diff --git a/core/tests/overlaytests/OverlayAppFirst/AndroidManifest.xml b/core/tests/overlaytests/device/OverlayAppFirst/AndroidManifest.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/AndroidManifest.xml
rename to core/tests/overlaytests/device/OverlayAppFirst/AndroidManifest.xml
diff --git a/core/tests/overlaytests/OverlayAppFirst/res/drawable-nodpi/drawable.jpg b/core/tests/overlaytests/device/OverlayAppFirst/res/drawable-nodpi/drawable.jpg
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/res/drawable-nodpi/drawable.jpg
rename to core/tests/overlaytests/device/OverlayAppFirst/res/drawable-nodpi/drawable.jpg
Binary files differ
diff --git a/core/tests/overlaytests/OverlayAppFirst/res/raw/lorem_ipsum.txt b/core/tests/overlaytests/device/OverlayAppFirst/res/raw/lorem_ipsum.txt
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/res/raw/lorem_ipsum.txt
rename to core/tests/overlaytests/device/OverlayAppFirst/res/raw/lorem_ipsum.txt
diff --git a/core/tests/overlaytests/OverlayAppFirst/res/values-sv/config.xml b/core/tests/overlaytests/device/OverlayAppFirst/res/values-sv/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/res/values-sv/config.xml
rename to core/tests/overlaytests/device/OverlayAppFirst/res/values-sv/config.xml
diff --git a/core/tests/overlaytests/OverlayAppFirst/res/values/config.xml b/core/tests/overlaytests/device/OverlayAppFirst/res/values/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/res/values/config.xml
rename to core/tests/overlaytests/device/OverlayAppFirst/res/values/config.xml
diff --git a/core/tests/overlaytests/OverlayAppFirst/res/xml/integer.xml b/core/tests/overlaytests/device/OverlayAppFirst/res/xml/integer.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppFirst/res/xml/integer.xml
rename to core/tests/overlaytests/device/OverlayAppFirst/res/xml/integer.xml
diff --git a/core/tests/overlaytests/OverlayAppSecond/Android.mk b/core/tests/overlaytests/device/OverlayAppSecond/Android.mk
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/Android.mk
rename to core/tests/overlaytests/device/OverlayAppSecond/Android.mk
diff --git a/core/tests/overlaytests/OverlayAppSecond/AndroidManifest.xml b/core/tests/overlaytests/device/OverlayAppSecond/AndroidManifest.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/AndroidManifest.xml
rename to core/tests/overlaytests/device/OverlayAppSecond/AndroidManifest.xml
diff --git a/core/tests/overlaytests/OverlayAppSecond/res/raw/lorem_ipsum.txt b/core/tests/overlaytests/device/OverlayAppSecond/res/raw/lorem_ipsum.txt
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/res/raw/lorem_ipsum.txt
rename to core/tests/overlaytests/device/OverlayAppSecond/res/raw/lorem_ipsum.txt
diff --git a/core/tests/overlaytests/OverlayAppSecond/res/values-sv/config.xml b/core/tests/overlaytests/device/OverlayAppSecond/res/values-sv/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/res/values-sv/config.xml
rename to core/tests/overlaytests/device/OverlayAppSecond/res/values-sv/config.xml
diff --git a/core/tests/overlaytests/OverlayAppSecond/res/values/config.xml b/core/tests/overlaytests/device/OverlayAppSecond/res/values/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/res/values/config.xml
rename to core/tests/overlaytests/device/OverlayAppSecond/res/values/config.xml
diff --git a/core/tests/overlaytests/OverlayAppSecond/res/xml/integer.xml b/core/tests/overlaytests/device/OverlayAppSecond/res/xml/integer.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayAppSecond/res/xml/integer.xml
rename to core/tests/overlaytests/device/OverlayAppSecond/res/xml/integer.xml
diff --git a/core/tests/overlaytests/OverlayTest/Android.mk b/core/tests/overlaytests/device/OverlayTest/Android.mk
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/Android.mk
rename to core/tests/overlaytests/device/OverlayTest/Android.mk
diff --git a/core/tests/overlaytests/OverlayTest/AndroidManifest.xml b/core/tests/overlaytests/device/OverlayTest/AndroidManifest.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/AndroidManifest.xml
rename to core/tests/overlaytests/device/OverlayTest/AndroidManifest.xml
diff --git a/core/tests/overlaytests/OverlayTest/res/drawable-nodpi/drawable.jpg b/core/tests/overlaytests/device/OverlayTest/res/drawable-nodpi/drawable.jpg
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/res/drawable-nodpi/drawable.jpg
rename to core/tests/overlaytests/device/OverlayTest/res/drawable-nodpi/drawable.jpg
Binary files differ
diff --git a/core/tests/overlaytests/OverlayTest/res/raw/lorem_ipsum.txt b/core/tests/overlaytests/device/OverlayTest/res/raw/lorem_ipsum.txt
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/res/raw/lorem_ipsum.txt
rename to core/tests/overlaytests/device/OverlayTest/res/raw/lorem_ipsum.txt
diff --git a/core/tests/overlaytests/OverlayTest/res/values-sv/config.xml b/core/tests/overlaytests/device/OverlayTest/res/values-sv/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/res/values-sv/config.xml
rename to core/tests/overlaytests/device/OverlayTest/res/values-sv/config.xml
diff --git a/core/tests/overlaytests/OverlayTest/res/values/config.xml b/core/tests/overlaytests/device/OverlayTest/res/values/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/res/values/config.xml
rename to core/tests/overlaytests/device/OverlayTest/res/values/config.xml
diff --git a/core/tests/overlaytests/OverlayTest/res/xml/integer.xml b/core/tests/overlaytests/device/OverlayTest/res/xml/integer.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/res/xml/integer.xml
rename to core/tests/overlaytests/device/OverlayTest/res/xml/integer.xml
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java b/core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java
rename to core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/OverlayBaseTest.java
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithMultipleOverlaysTest.java b/core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithMultipleOverlaysTest.java
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithMultipleOverlaysTest.java
rename to core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithMultipleOverlaysTest.java
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java b/core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java
rename to core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithOverlayTest.java
diff --git a/core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java b/core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java
similarity index 100%
rename from core/tests/overlaytests/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java
rename to core/tests/overlaytests/device/OverlayTest/src/com/android/overlaytest/WithoutOverlayTest.java
diff --git a/core/tests/overlaytests/OverlayTestOverlay/Android.mk b/core/tests/overlaytests/device/OverlayTestOverlay/Android.mk
similarity index 100%
rename from core/tests/overlaytests/OverlayTestOverlay/Android.mk
rename to core/tests/overlaytests/device/OverlayTestOverlay/Android.mk
diff --git a/core/tests/overlaytests/OverlayTestOverlay/AndroidManifest.xml b/core/tests/overlaytests/device/OverlayTestOverlay/AndroidManifest.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTestOverlay/AndroidManifest.xml
rename to core/tests/overlaytests/device/OverlayTestOverlay/AndroidManifest.xml
diff --git a/core/tests/overlaytests/OverlayTestOverlay/res/values/config.xml b/core/tests/overlaytests/device/OverlayTestOverlay/res/values/config.xml
similarity index 100%
rename from core/tests/overlaytests/OverlayTestOverlay/res/values/config.xml
rename to core/tests/overlaytests/device/OverlayTestOverlay/res/values/config.xml
diff --git a/core/tests/overlaytests/host/Android.mk b/core/tests/overlaytests/host/Android.mk
new file mode 100644
index 0000000..d8e1fc1
--- /dev/null
+++ b/core/tests/overlaytests/host/Android.mk
@@ -0,0 +1,32 @@
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_SRC_FILES := $(call all-java-files-under,src)
+LOCAL_MODULE_TAGS := tests
+LOCAL_MODULE := OverlayHostTests
+LOCAL_JAVA_LIBRARIES := tradefed
+LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_TARGET_REQUIRED_MODULES := \
+    OverlayHostTests_BadSignatureOverlay \
+    OverlayHostTests_PlatformSignatureStaticOverlay \
+    OverlayHostTests_PlatformSignatureOverlay \
+    OverlayHostTests_PlatformSignatureOverlayV2
+include $(BUILD_HOST_JAVA_LIBRARY)
+
+# Include to build test-apps.
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
diff --git a/core/tests/overlaytests/host/AndroidTest.xml b/core/tests/overlaytests/host/AndroidTest.xml
new file mode 100644
index 0000000..6884623
--- /dev/null
+++ b/core/tests/overlaytests/host/AndroidTest.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<configuration description="Host-driven test module config for OverlayHostTests">
+    <option name="test-tag" value="OverlayHostTests" />
+    <option name="test-suite-tag" value="apct" />
+
+    <test class="com.android.tradefed.testtype.HostTest">
+        <option name="class" value="com.android.server.om.hosttest.InstallOverlayTests" />
+    </test>
+</configuration>
diff --git a/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java b/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java
new file mode 100644
index 0000000..5093710
--- /dev/null
+++ b/core/tests/overlaytests/host/src/com/android/server/om/hosttest/InstallOverlayTests.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy
+ * of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ */
+package com.android.server.om.hosttest;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import com.android.tradefed.testtype.DeviceJUnit4ClassRunner;
+import com.android.tradefed.testtype.junit4.BaseHostJUnit4Test;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(DeviceJUnit4ClassRunner.class)
+public class InstallOverlayTests extends BaseHostJUnit4Test {
+
+    private static final String OVERLAY_PACKAGE_NAME =
+            "com.android.server.om.hosttest.signature_overlay";
+
+    @Test
+    public void failToInstallNonPlatformSignedOverlay() throws Exception {
+        try {
+            installPackage("OverlayHostTests_BadSignatureOverlay.apk");
+            fail("installed a non-platform signed overlay");
+        } catch (Exception e) {
+            // Expected.
+        }
+        assertFalse(overlayManagerContainsPackage());
+    }
+
+    @Test
+    public void failToInstallPlatformSignedStaticOverlay() throws Exception {
+        try {
+            installPackage("OverlayHostTests_PlatformSignatureStaticOverlay.apk");
+            fail("installed a static overlay");
+        } catch (Exception e) {
+            // Expected.
+        }
+        assertFalse(overlayManagerContainsPackage());
+    }
+
+    @Test
+    public void succeedToInstallPlatformSignedOverlay() throws Exception {
+        installPackage("OverlayHostTests_PlatformSignatureOverlay.apk");
+        assertTrue(overlayManagerContainsPackage());
+    }
+
+    @Test
+    public void succeedToInstallPlatformSignedOverlayAndUpdate() throws Exception {
+        installPackage("OverlayHostTests_PlatformSignatureOverlay.apk");
+        assertTrue(overlayManagerContainsPackage());
+        assertEquals("v1", getDevice().getAppPackageInfo(OVERLAY_PACKAGE_NAME).getVersionName());
+
+        installPackage("OverlayHostTests_PlatformSignatureOverlayV2.apk");
+        assertTrue(overlayManagerContainsPackage());
+        assertEquals("v2", getDevice().getAppPackageInfo(OVERLAY_PACKAGE_NAME).getVersionName());
+    }
+
+    private boolean overlayManagerContainsPackage() throws Exception {
+        return getDevice().executeShellCommand("cmd overlay list")
+                .contains(OVERLAY_PACKAGE_NAME);
+    }
+}
diff --git a/core/tests/overlaytests/host/test-apps/Android.mk b/core/tests/overlaytests/host/test-apps/Android.mk
new file mode 100644
index 0000000..5c7187e
--- /dev/null
+++ b/core/tests/overlaytests/host/test-apps/Android.mk
@@ -0,0 +1,16 @@
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+include $(call all-subdir-makefiles)
+
diff --git a/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk b/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
new file mode 100644
index 0000000..b051a82
--- /dev/null
+++ b/core/tests/overlaytests/host/test-apps/SignatureOverlay/Android.mk
@@ -0,0 +1,52 @@
+# Copyright (C) 2018 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH := $(call my-dir)
+
+my_package_prefix := com.android.server.om.hosttest.signature_overlay
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_PACKAGE_NAME := OverlayHostTests_BadSignatureOverlay
+LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_bad
+include $(BUILD_PACKAGE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_PACKAGE_NAME := OverlayHostTests_PlatformSignatureStaticOverlay
+LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_MANIFEST_FILE := static/AndroidManifest.xml
+LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_static
+include $(BUILD_PACKAGE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_PACKAGE_NAME := OverlayHostTests_PlatformSignatureOverlay
+LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_CERTIFICATE := platform
+LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v1
+LOCAL_AAPT_FLAGS += --version-code 1 --version-name v1
+include $(BUILD_PACKAGE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_PACKAGE_NAME := OverlayHostTests_PlatformSignatureOverlayV2
+LOCAL_COMPATIBILITY_SUITE := general-tests
+LOCAL_CERTIFICATE := platform
+LOCAL_AAPT_FLAGS := --custom-package $(my_package_prefix)_v2
+LOCAL_AAPT_FLAGS += --version-code 2 --version-name v2
+include $(BUILD_PACKAGE)
+
+my_package_prefix :=
diff --git a/core/tests/overlaytests/host/test-apps/SignatureOverlay/AndroidManifest.xml b/core/tests/overlaytests/host/test-apps/SignatureOverlay/AndroidManifest.xml
new file mode 100644
index 0000000..2d68439
--- /dev/null
+++ b/core/tests/overlaytests/host/test-apps/SignatureOverlay/AndroidManifest.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.server.om.hosttest.signature_overlay">
+    <overlay android:targetPackage="android" />
+</manifest>
diff --git a/core/tests/overlaytests/host/test-apps/SignatureOverlay/src/dummy b/core/tests/overlaytests/host/test-apps/SignatureOverlay/src/dummy
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/core/tests/overlaytests/host/test-apps/SignatureOverlay/src/dummy
diff --git a/core/tests/overlaytests/host/test-apps/SignatureOverlay/static/AndroidManifest.xml b/core/tests/overlaytests/host/test-apps/SignatureOverlay/static/AndroidManifest.xml
new file mode 100644
index 0000000..139dd96
--- /dev/null
+++ b/core/tests/overlaytests/host/test-apps/SignatureOverlay/static/AndroidManifest.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.server.om.hosttest.signature_overlay">
+    <overlay android:targetPackage="android" android:isStatic="true" />
+</manifest>
diff --git a/data/etc/privapp-permissions-platform.xml b/data/etc/privapp-permissions-platform.xml
index 0949a90..6c8aaf0 100644
--- a/data/etc/privapp-permissions-platform.xml
+++ b/data/etc/privapp-permissions-platform.xml
@@ -350,6 +350,7 @@
         <permission name="android.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST"/>
         <permission name="android.permission.CHANGE_OVERLAY_PACKAGES"/>
         <permission name="android.permission.CONNECTIVITY_INTERNAL"/>
+        <permission name="android.permission.CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS"/>
         <permission name="android.permission.CONTROL_VPN"/>
         <permission name="android.permission.DUMP"/>
         <permission name="android.permission.GET_APP_OPS_STATS"/>
diff --git a/graphics/java/android/graphics/BaseCanvas.java b/graphics/java/android/graphics/BaseCanvas.java
index 2d8c717..627d551 100644
--- a/graphics/java/android/graphics/BaseCanvas.java
+++ b/graphics/java/android/graphics/BaseCanvas.java
@@ -22,6 +22,8 @@
 import android.annotation.Size;
 import android.graphics.Canvas.VertexMode;
 import android.text.GraphicsOperations;
+import android.text.MeasuredParagraph;
+import android.text.MeasuredText;
 import android.text.SpannableString;
 import android.text.SpannedString;
 import android.text.TextUtils;
@@ -453,7 +455,8 @@
 
         throwIfHasHwBitmapInSwMode(paint);
         nDrawTextRun(mNativeCanvasWrapper, text, index, count, contextIndex, contextCount,
-                x, y, isRtl, paint.getNativeInstance());
+                x, y, isRtl, paint.getNativeInstance(), 0 /* measured text */,
+                0 /* measured text offset */);
     }
 
     public void drawTextRun(@NonNull CharSequence text, int start, int end, int contextStart,
@@ -483,8 +486,20 @@
             int len = end - start;
             char[] buf = TemporaryBuffer.obtain(contextLen);
             TextUtils.getChars(text, contextStart, contextEnd, buf, 0);
+            long measuredTextPtr = 0;
+            int measuredTextOffset = 0;
+            if (text instanceof MeasuredText) {
+                MeasuredText mt = (MeasuredText) text;
+                int paraIndex = mt.findParaIndex(start);
+                if (end <= mt.getParagraphEnd(paraIndex)) {
+                    // Only suppor the same paragraph.
+                    measuredTextPtr = mt.getMeasuredParagraph(paraIndex).getNativePtr();
+                    measuredTextOffset = start - mt.getParagraphStart(paraIndex);
+                }
+            }
             nDrawTextRun(mNativeCanvasWrapper, buf, start - contextStart, len,
-                    0, contextLen, x, y, isRtl, paint.getNativeInstance());
+                    0, contextLen, x, y, isRtl, paint.getNativeInstance(),
+                    measuredTextPtr, measuredTextOffset);
             TemporaryBuffer.recycle(buf);
         }
     }
@@ -623,7 +638,8 @@
             int contextStart, int contextEnd, float x, float y, boolean isRtl, long nativePaint);
 
     private static native void nDrawTextRun(long nativeCanvas, char[] text, int start, int count,
-            int contextStart, int contextCount, float x, float y, boolean isRtl, long nativePaint);
+            int contextStart, int contextCount, float x, float y, boolean isRtl, long nativePaint,
+            long nativeMeasuredText, int measuredTextOffset);
 
     private static native void nDrawTextOnPath(long nativeCanvas, char[] text, int index, int count,
             long nativePath, float hOffset, float vOffset, int bidiFlags, long nativePaint);
diff --git a/graphics/java/android/graphics/ImageDecoder.java b/graphics/java/android/graphics/ImageDecoder.java
index 02d22be..3de050b 100644
--- a/graphics/java/android/graphics/ImageDecoder.java
+++ b/graphics/java/android/graphics/ImageDecoder.java
@@ -920,10 +920,6 @@
             Resources res = src.getResources();
             byte[] np = bm.getNinePatchChunk();
             if (np != null && NinePatch.isNinePatchChunk(np)) {
-                if (res != null) {
-                    bm.setDensity(res.getDisplayMetrics().densityDpi);
-                }
-
                 Rect opticalInsets = new Rect();
                 bm.getOpticalInsets(opticalInsets);
                 Rect padding = new Rect();
diff --git a/graphics/java/android/graphics/Paint.java b/graphics/java/android/graphics/Paint.java
index 317144a..5a80ee2 100644
--- a/graphics/java/android/graphics/Paint.java
+++ b/graphics/java/android/graphics/Paint.java
@@ -2742,7 +2742,7 @@
      * @param offset index of caret position
      * @return width measurement between start and offset
      */
-    public float getRunAdvance(@NonNull CharSequence text, int start, int end, int contextStart,
+    public float getRunAdvance(CharSequence text, int start, int end, int contextStart,
             int contextEnd, boolean isRtl, int offset) {
         if (text == null) {
             throw new IllegalArgumentException("text cannot be null");
diff --git a/graphics/java/android/graphics/drawable/AnimatedImageDrawable.java b/graphics/java/android/graphics/drawable/AnimatedImageDrawable.java
index 6d3ddd5..3034a10 100644
--- a/graphics/java/android/graphics/drawable/AnimatedImageDrawable.java
+++ b/graphics/java/android/graphics/drawable/AnimatedImageDrawable.java
@@ -166,8 +166,7 @@
 
     @Override
     public void start() {
-        if (isRunning() == false) {
-            nStart(mNativePtr);
+        if (nStart(mNativePtr)) {
             invalidateSelf();
         }
     }
@@ -186,7 +185,7 @@
     private static native int nGetAlpha(long nativePtr);
     private static native void nSetColorFilter(long nativePtr, long nativeFilter);
     private static native boolean nIsRunning(long nativePtr);
-    private static native void nStart(long nativePtr);
+    private static native boolean nStart(long nativePtr);
     private static native void nStop(long nativePtr);
     private static native long nNativeByteSize(long nativePtr);
 }
diff --git a/graphics/java/android/graphics/drawable/BitmapDrawable.java b/graphics/java/android/graphics/drawable/BitmapDrawable.java
index e3740e3..7ad062a 100644
--- a/graphics/java/android/graphics/drawable/BitmapDrawable.java
+++ b/graphics/java/android/graphics/drawable/BitmapDrawable.java
@@ -163,7 +163,7 @@
     /**
      * Create a drawable by opening a given file path and decoding the bitmap.
      */
-    @SuppressWarnings("unused")
+    @SuppressWarnings({ "unused", "ChainingConstructorIgnoresParameter" })
     public BitmapDrawable(Resources res, String filepath) {
         this(new BitmapState(BitmapFactory.decodeFile(filepath)), null);
         mBitmapState.mTargetDensity = mTargetDensity;
@@ -188,7 +188,7 @@
     /**
      * Create a drawable by decoding a bitmap from the given input stream.
      */
-    @SuppressWarnings("unused")
+    @SuppressWarnings({ "unused", "ChainingConstructorIgnoresParameter" })
     public BitmapDrawable(Resources res, java.io.InputStream is) {
         this(new BitmapState(BitmapFactory.decodeStream(is)), null);
         mBitmapState.mTargetDensity = mTargetDensity;
diff --git a/graphics/java/android/graphics/drawable/GradientDrawable.java b/graphics/java/android/graphics/drawable/GradientDrawable.java
index 6c3aea2..f5a6f49 100644
--- a/graphics/java/android/graphics/drawable/GradientDrawable.java
+++ b/graphics/java/android/graphics/drawable/GradientDrawable.java
@@ -42,6 +42,7 @@
 import android.graphics.RectF;
 import android.graphics.Shader;
 import android.graphics.SweepGradient;
+import android.graphics.Xfermode;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.util.Log;
@@ -814,6 +815,16 @@
         }
     }
 
+    /**
+     * @param mode to draw this drawable with
+     * @hide
+     */
+    @Override
+    public void setXfermode(@Nullable Xfermode mode) {
+        super.setXfermode(mode);
+        mFillPaint.setXfermode(mode);
+    }
+
     private void buildPathIfDirty() {
         final GradientState st = mGradientState;
         if (mPathIsDirty) {
diff --git a/graphics/java/android/graphics/drawable/RippleBackground.java b/graphics/java/android/graphics/drawable/RippleBackground.java
index 4571553..41d3698 100644
--- a/graphics/java/android/graphics/drawable/RippleBackground.java
+++ b/graphics/java/android/graphics/drawable/RippleBackground.java
@@ -63,15 +63,21 @@
         }
     }
 
-    public void setState(boolean focused, boolean hovered, boolean animateChanged) {
+    public void setState(boolean focused, boolean hovered, boolean pressed) {
+        if (!mFocused) {
+            focused = focused && !pressed;
+        }
+        if (!mHovered) {
+            hovered = hovered && !pressed;
+        }
         if (mHovered != hovered || mFocused != focused) {
             mHovered = hovered;
             mFocused = focused;
-            onStateChanged(animateChanged);
+            onStateChanged();
         }
     }
 
-    private void onStateChanged(boolean animateChanged) {
+    private void onStateChanged() {
         float newOpacity = 0.0f;
         if (mHovered) newOpacity += .25f;
         if (mFocused) newOpacity += .75f;
@@ -79,14 +85,10 @@
             mAnimator.cancel();
             mAnimator = null;
         }
-        if (animateChanged) {
-            mAnimator = ObjectAnimator.ofFloat(this, OPACITY, newOpacity);
-            mAnimator.setDuration(OPACITY_DURATION);
-            mAnimator.setInterpolator(LINEAR_INTERPOLATOR);
-            mAnimator.start();
-        } else {
-            mOpacity = newOpacity;
-        }
+        mAnimator = ObjectAnimator.ofFloat(this, OPACITY, newOpacity);
+        mAnimator.setDuration(OPACITY_DURATION);
+        mAnimator.setInterpolator(LINEAR_INTERPOLATOR);
+        mAnimator.start();
     }
 
     public void jumpToFinal() {
diff --git a/graphics/java/android/graphics/drawable/RippleDrawable.java b/graphics/java/android/graphics/drawable/RippleDrawable.java
index b883656..0da61c2 100644
--- a/graphics/java/android/graphics/drawable/RippleDrawable.java
+++ b/graphics/java/android/graphics/drawable/RippleDrawable.java
@@ -264,7 +264,7 @@
         }
 
         setRippleActive(enabled && pressed);
-        setBackgroundActive(hovered, focused);
+        setBackgroundActive(hovered, focused, pressed);
 
         return changed;
     }
@@ -280,13 +280,13 @@
         }
     }
 
-    private void setBackgroundActive(boolean hovered, boolean focused) {
+    private void setBackgroundActive(boolean hovered, boolean focused, boolean pressed) {
         if (mBackground == null && (hovered || focused)) {
             mBackground = new RippleBackground(this, mHotspotBounds, isBounded());
             mBackground.setup(mState.mMaxRadius, mDensity);
         }
         if (mBackground != null) {
-            mBackground.setState(focused, hovered, true);
+            mBackground.setState(focused, hovered, pressed);
         }
     }
 
@@ -878,7 +878,10 @@
 
         // Grab the color for the current state and cut the alpha channel in
         // half so that the ripple and background together yield full alpha.
-        final int color = mState.mColor.getColorForState(getState(), Color.BLACK);
+        int color = mState.mColor.getColorForState(getState(), Color.BLACK);
+        if (Color.alpha(color) > 128) {
+            color = (color & 0x00FFFFFF) | 0x80000000;
+        }
         final Paint p = mRipplePaint;
 
         if (mMaskColorFilter != null) {
diff --git a/graphics/java/android/graphics/drawable/RippleForeground.java b/graphics/java/android/graphics/drawable/RippleForeground.java
index ecbf578..4129868 100644
--- a/graphics/java/android/graphics/drawable/RippleForeground.java
+++ b/graphics/java/android/graphics/drawable/RippleForeground.java
@@ -289,6 +289,7 @@
         opacity.setInterpolator(LINEAR_INTERPOLATOR);
         opacity.addListener(mAnimationListener);
         opacity.setStartDelay(computeFadeOutDelay());
+        opacity.setStartValue(mOwner.getRipplePaint().getAlpha());
         mPendingHwAnimators.add(opacity);
         invalidateSelf();
     }
diff --git a/keystore/java/android/security/KeyStore.java b/keystore/java/android/security/KeyStore.java
index e25386b..ded427e 100644
--- a/keystore/java/android/security/KeyStore.java
+++ b/keystore/java/android/security/KeyStore.java
@@ -38,6 +38,7 @@
 import android.security.keystore.KeyExpiredException;
 import android.security.keystore.KeyNotYetValidException;
 import android.security.keystore.KeyPermanentlyInvalidatedException;
+import android.security.keystore.StrongBoxUnavailableException;
 import android.security.keystore.UserNotAuthenticatedException;
 import android.util.Log;
 
@@ -65,6 +66,7 @@
     public static final int VALUE_CORRUPTED = 8;
     public static final int UNDEFINED_ACTION = 9;
     public static final int WRONG_PASSWORD = 10;
+    public static final int HARDWARE_TYPE_UNAVAILABLE = -68;
 
     /**
      * Per operation authentication is needed before this operation is valid.
@@ -123,7 +125,6 @@
      */
     public static final int FLAG_STRONGBOX = 1 << 4;
 
-
     // States
     public enum State { UNLOCKED, LOCKED, UNINITIALIZED };
 
@@ -730,6 +731,58 @@
         }
     }
 
+    // Keep in sync with confirmationui/1.0/types.hal.
+    public static final int CONFIRMATIONUI_OK = 0;
+    public static final int CONFIRMATIONUI_CANCELED = 1;
+    public static final int CONFIRMATIONUI_ABORTED = 2;
+    public static final int CONFIRMATIONUI_OPERATION_PENDING = 3;
+    public static final int CONFIRMATIONUI_IGNORED = 4;
+    public static final int CONFIRMATIONUI_SYSTEM_ERROR = 5;
+    public static final int CONFIRMATIONUI_UNIMPLEMENTED = 6;
+    public static final int CONFIRMATIONUI_UNEXPECTED = 7;
+    public static final int CONFIRMATIONUI_UIERROR = 0x10000;
+    public static final int CONFIRMATIONUI_UIERROR_MISSING_GLYPH = 0x10001;
+    public static final int CONFIRMATIONUI_UIERROR_MESSAGE_TOO_LONG = 0x10002;
+    public static final int CONFIRMATIONUI_UIERROR_MALFORMED_UTF8_ENCODING = 0x10003;
+
+    /**
+     * Requests keystore call into the confirmationui HAL to display a prompt.
+     *
+     * @param listener the binder to use for callbacks.
+     * @param promptText the prompt to display.
+     * @param extraData extra data / nonce from application.
+     * @param locale the locale as a BCP 47 langauge tag.
+     * @param uiOptionsAsFlags the UI options to use, as flags.
+     * @return one of the {@code CONFIRMATIONUI_*} constants, for
+     * example {@code KeyStore.CONFIRMATIONUI_OK}.
+     */
+    public int presentConfirmationPrompt(IBinder listener, String promptText, byte[] extraData,
+                                         String locale, int uiOptionsAsFlags) {
+        try {
+            return mBinder.presentConfirmationPrompt(listener, promptText, extraData, locale,
+                                                     uiOptionsAsFlags);
+        } catch (RemoteException e) {
+            Log.w(TAG, "Cannot connect to keystore", e);
+            return CONFIRMATIONUI_SYSTEM_ERROR;
+        }
+    }
+
+    /**
+     * Requests keystore call into the confirmationui HAL to cancel displaying a prompt.
+     *
+     * @param listener the binder passed to the {@link #presentConfirmationPrompt} method.
+     * @return one of the {@code CONFIRMATIONUI_*} constants, for
+     * example {@code KeyStore.CONFIRMATIONUI_OK}.
+     */
+    public int cancelConfirmationPrompt(IBinder listener) {
+        try {
+            return mBinder.cancelConfirmationPrompt(listener);
+        } catch (RemoteException e) {
+            Log.w(TAG, "Cannot connect to keystore", e);
+            return CONFIRMATIONUI_SYSTEM_ERROR;
+        }
+    }
+
     /**
      * Returns a {@link KeyStoreException} corresponding to the provided keystore/keymaster error
      * code.
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java
index 379e177..f721ed3 100644
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java
+++ b/keystore/java/android/security/keystore/AndroidKeyStoreKeyGeneratorSpi.java
@@ -290,6 +290,9 @@
                 spec.isUserAuthenticationValidWhileOnBody(),
                 spec.isInvalidatedByBiometricEnrollment(),
                 GateKeeper.INVALID_SECURE_USER_ID /* boundToSpecificSecureUserId */);
+        if (spec.isTrustedUserPresenceRequired()) {
+            args.addBoolean(KeymasterDefs.KM_TAG_TRUSTED_USER_PRESENCE_REQUIRED);
+        }
         KeymasterUtils.addMinMacLengthAuthorizationIfNecessary(
                 args,
                 mKeymasterAlgorithm,
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java
index dba3949..d1eb688 100644
--- a/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java
+++ b/keystore/java/android/security/keystore/AndroidKeyStoreKeyPairGeneratorSpi.java
@@ -21,6 +21,7 @@
 import android.security.GateKeeper;
 import android.security.KeyPairGeneratorSpec;
 import android.security.KeyStore;
+import android.security.KeyStoreException;
 import android.security.keymaster.KeyCharacteristics;
 import android.security.keymaster.KeymasterArguments;
 import android.security.keymaster.KeymasterCertificateChain;
@@ -451,7 +452,7 @@
             throw new IllegalStateException("Not initialized");
         }
 
-        final int flags = (mEncryptionAtRestRequired) ? KeyStore.FLAG_ENCRYPTED : 0;
+        int flags = (mEncryptionAtRestRequired) ? KeyStore.FLAG_ENCRYPTED : 0;
         if (((flags & KeyStore.FLAG_ENCRYPTED) != 0)
                 && (mKeyStore.state() != KeyStore.State.UNLOCKED)) {
             throw new IllegalStateException(
@@ -459,6 +460,10 @@
                     + ", but the user has not yet entered the credential");
         }
 
+        if (mSpec.isStrongBoxBacked()) {
+            flags |= KeyStore.FLAG_STRONGBOX;
+        }
+
         byte[] additionalEntropy =
                 KeyStoreCryptoOperationUtils.getRandomBytesToMixIntoKeystoreRng(
                         mRng, (mKeySizeBits + 7) / 8);
@@ -501,8 +506,12 @@
         int errorCode = mKeyStore.generateKey(privateKeyAlias, args, additionalEntropy,
                 mEntryUid, flags, resultingKeyCharacteristics);
         if (errorCode != KeyStore.NO_ERROR) {
-            throw new ProviderException(
-                    "Failed to generate key pair", KeyStore.getKeyStoreException(errorCode));
+            if (errorCode == KeyStore.HARDWARE_TYPE_UNAVAILABLE) {
+                throw new StrongBoxUnavailableException("Failed to generate key pair");
+            } else {
+                throw new ProviderException(
+                        "Failed to generate key pair", KeyStore.getKeyStoreException(errorCode));
+            }
         }
     }
 
diff --git a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java b/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java
index fdb885db..9df37f5 100644
--- a/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java
+++ b/keystore/java/android/security/keystore/AndroidKeyStoreSecretKeyFactorySpi.java
@@ -177,6 +177,9 @@
                 && (keymasterSwEnforcedUserAuthenticators == 0);
         boolean userAuthenticationValidWhileOnBody =
                 keyCharacteristics.hwEnforced.getBoolean(KeymasterDefs.KM_TAG_ALLOW_WHILE_ON_BODY);
+        boolean trustedUserPresenceRequred =
+                keyCharacteristics.hwEnforced.getBoolean(
+                    KeymasterDefs.KM_TAG_TRUSTED_USER_PRESENCE_REQUIRED);
 
         boolean invalidatedByBiometricEnrollment = false;
         if (keymasterSwEnforcedUserAuthenticators == KeymasterDefs.HW_AUTH_FINGERPRINT
@@ -203,6 +206,7 @@
                 (int) userAuthenticationValidityDurationSeconds,
                 userAuthenticationRequirementEnforcedBySecureHardware,
                 userAuthenticationValidWhileOnBody,
+                trustedUserPresenceRequred,
                 invalidatedByBiometricEnrollment);
     }
 
diff --git a/keystore/java/android/security/keystore/KeyGenParameterSpec.java b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
index 1e2b873..a896c72 100644
--- a/keystore/java/android/security/keystore/KeyGenParameterSpec.java
+++ b/keystore/java/android/security/keystore/KeyGenParameterSpec.java
@@ -258,6 +258,7 @@
     private final boolean mRandomizedEncryptionRequired;
     private final boolean mUserAuthenticationRequired;
     private final int mUserAuthenticationValidityDurationSeconds;
+    private final boolean mTrustedUserPresenceRequred;
     private final byte[] mAttestationChallenge;
     private final boolean mUniqueIdIncluded;
     private final boolean mUserAuthenticationValidWhileOnBody;
@@ -287,6 +288,7 @@
             boolean randomizedEncryptionRequired,
             boolean userAuthenticationRequired,
             int userAuthenticationValidityDurationSeconds,
+            boolean trustedUserPresenceRequired,
             byte[] attestationChallenge,
             boolean uniqueIdIncluded,
             boolean userAuthenticationValidWhileOnBody,
@@ -332,6 +334,7 @@
         mBlockModes = ArrayUtils.cloneIfNotEmpty(ArrayUtils.nullToEmpty(blockModes));
         mRandomizedEncryptionRequired = randomizedEncryptionRequired;
         mUserAuthenticationRequired = userAuthenticationRequired;
+        mTrustedUserPresenceRequred = trustedUserPresenceRequired;
         mUserAuthenticationValidityDurationSeconds = userAuthenticationValidityDurationSeconds;
         mAttestationChallenge = Utils.cloneIfNotNull(attestationChallenge);
         mUniqueIdIncluded = uniqueIdIncluded;
@@ -562,6 +565,14 @@
     }
 
     /**
+     * Returns {@code true} if the key is authorized to be used only if a test of user presence has
+     * been performed between the {@code Signature.initSign()} and {@code Signature.sign()} calls.
+     */
+    public boolean isTrustedUserPresenceRequired() {
+        return mTrustedUserPresenceRequred;
+    }
+
+    /**
      * Returns the attestation challenge value that will be placed in attestation certificate for
      * this key pair.
      *
@@ -658,6 +669,7 @@
         private boolean mRandomizedEncryptionRequired = true;
         private boolean mUserAuthenticationRequired;
         private int mUserAuthenticationValidityDurationSeconds = -1;
+        private boolean mTrustedUserPresenceRequired = false;
         private byte[] mAttestationChallenge = null;
         private boolean mUniqueIdIncluded = false;
         private boolean mUserAuthenticationValidWhileOnBody;
@@ -718,6 +730,7 @@
             mUserAuthenticationRequired = sourceSpec.isUserAuthenticationRequired();
             mUserAuthenticationValidityDurationSeconds =
                 sourceSpec.getUserAuthenticationValidityDurationSeconds();
+            mTrustedUserPresenceRequired = sourceSpec.isTrustedUserPresenceRequired();
             mAttestationChallenge = sourceSpec.getAttestationChallenge();
             mUniqueIdIncluded = sourceSpec.isUniqueIdIncluded();
             mUserAuthenticationValidWhileOnBody = sourceSpec.isUserAuthenticationValidWhileOnBody();
@@ -1095,6 +1108,16 @@
         }
 
         /**
+         * Sets whether a test of user presence is required to be performed between the
+         * {@code Signature.initSign()} and {@code Signature.sign()} method calls.
+         */
+        @NonNull
+        public Builder setTrustedUserPresenceRequired(boolean required) {
+            mTrustedUserPresenceRequired = required;
+            return this;
+        }
+
+        /**
          * Sets whether an attestation certificate will be generated for this key pair, and what
          * challenge value will be placed in the certificate.  The attestation certificate chain
          * can be retrieved with with {@link java.security.KeyStore#getCertificateChain(String)}.
@@ -1221,6 +1244,7 @@
                     mRandomizedEncryptionRequired,
                     mUserAuthenticationRequired,
                     mUserAuthenticationValidityDurationSeconds,
+                    mTrustedUserPresenceRequired,
                     mAttestationChallenge,
                     mUniqueIdIncluded,
                     mUserAuthenticationValidWhileOnBody,
diff --git a/keystore/java/android/security/keystore/KeyInfo.java b/keystore/java/android/security/keystore/KeyInfo.java
index f553319..864f62a 100644
--- a/keystore/java/android/security/keystore/KeyInfo.java
+++ b/keystore/java/android/security/keystore/KeyInfo.java
@@ -80,6 +80,7 @@
     private final int mUserAuthenticationValidityDurationSeconds;
     private final boolean mUserAuthenticationRequirementEnforcedBySecureHardware;
     private final boolean mUserAuthenticationValidWhileOnBody;
+    private final boolean mTrustedUserPresenceRequired;
     private final boolean mInvalidatedByBiometricEnrollment;
 
     /**
@@ -101,6 +102,7 @@
             int userAuthenticationValidityDurationSeconds,
             boolean userAuthenticationRequirementEnforcedBySecureHardware,
             boolean userAuthenticationValidWhileOnBody,
+            boolean trustedUserPresenceRequired,
             boolean invalidatedByBiometricEnrollment) {
         mKeystoreAlias = keystoreKeyAlias;
         mInsideSecureHardware = insideSecureHardware;
@@ -121,6 +123,7 @@
         mUserAuthenticationRequirementEnforcedBySecureHardware =
                 userAuthenticationRequirementEnforcedBySecureHardware;
         mUserAuthenticationValidWhileOnBody = userAuthenticationValidWhileOnBody;
+        mTrustedUserPresenceRequired = trustedUserPresenceRequired;
         mInvalidatedByBiometricEnrollment = invalidatedByBiometricEnrollment;
     }
 
@@ -301,4 +304,12 @@
     public boolean isInvalidatedByBiometricEnrollment() {
         return mInvalidatedByBiometricEnrollment;
     }
+
+    /**
+     * Returns {@code true} if the key can only be only be used if a test for user presence has
+     * succeeded since Signature.initSign() has been called.
+     */
+    public boolean isTrustedUserPresenceRequired() {
+        return mTrustedUserPresenceRequired;
+    }
 }
diff --git a/keystore/java/android/security/keystore/ParcelableKeyGenParameterSpec.java b/keystore/java/android/security/keystore/ParcelableKeyGenParameterSpec.java
index 7cb8e37..e5fdea7 100644
--- a/keystore/java/android/security/keystore/ParcelableKeyGenParameterSpec.java
+++ b/keystore/java/android/security/keystore/ParcelableKeyGenParameterSpec.java
@@ -101,6 +101,7 @@
         out.writeBoolean(mSpec.isUniqueIdIncluded());
         out.writeBoolean(mSpec.isUserAuthenticationValidWhileOnBody());
         out.writeBoolean(mSpec.isInvalidatedByBiometricEnrollment());
+        out.writeBoolean(mSpec.isTrustedUserPresenceRequired());
     }
 
     private static Date readDateOrNull(Parcel in) {
@@ -164,6 +165,7 @@
         builder.setUniqueIdIncluded(in.readBoolean());
         builder.setUserAuthenticationValidWhileOnBody(in.readBoolean());
         builder.setInvalidatedByBiometricEnrollment(in.readBoolean());
+        builder.setTrustedUserPresenceRequired(in.readBoolean());
         mSpec = builder.build();
     }
 
diff --git a/keystore/java/android/security/keystore/StrongBoxUnavailableException.java b/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
index ad41a58..66a77ed 100644
--- a/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
+++ b/keystore/java/android/security/keystore/StrongBoxUnavailableException.java
@@ -16,6 +16,9 @@
 
 package android.security.keystore;
 
+import android.security.KeyStore;
+import android.security.KeyStoreException;
+
 import java.security.ProviderException;
 
 /**
@@ -24,5 +27,13 @@
  */
 public class StrongBoxUnavailableException extends ProviderException {
 
+    /**
+     * @hide
+     */
+    public StrongBoxUnavailableException(String message) {
+        super(message,
+                new KeyStoreException(KeyStore.HARDWARE_TYPE_UNAVAILABLE, "No StrongBox available")
+        );
+    }
 }
 
diff --git a/keystore/java/android/security/keystore/UserPresenceUnavailableException.java b/keystore/java/android/security/keystore/UserPresenceUnavailableException.java
new file mode 100644
index 0000000..cf4099e
--- /dev/null
+++ b/keystore/java/android/security/keystore/UserPresenceUnavailableException.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security.keystore;
+
+import java.security.InvalidAlgorithmParameterException;
+
+/**
+ * Indicates the condition that a proof of user-presence was
+ * requested but this proof was not presented.
+ */
+public class UserPresenceUnavailableException extends InvalidAlgorithmParameterException {
+    /**
+     * Constructs a {@code UserPresenceUnavailableException} without a detail message or cause.
+     */
+    public UserPresenceUnavailableException() {
+        super("No Strong Box available.");
+    }
+
+    /**
+     * Constructs a {@code UserPresenceUnavailableException} using the provided detail message
+     * but no cause.
+     */
+    public UserPresenceUnavailableException(String message) {
+        super(message);
+    }
+
+    /**
+     * Constructs a {@code UserPresenceUnavailableException} using the provided detail message
+     * and cause.
+     */
+    public UserPresenceUnavailableException(String message, Throwable cause) {
+        super(message, cause);
+    }
+}
diff --git a/libs/androidfw/Android.bp b/libs/androidfw/Android.bp
index 251b2e7..70d5216 100644
--- a/libs/androidfw/Android.bp
+++ b/libs/androidfw/Android.bp
@@ -145,6 +145,7 @@
         "tests/TypeWrappers_test.cpp",
         "tests/ZipUtils_test.cpp",
     ],
+    static_libs: ["libgmock"],
     target: {
         android: {
             srcs: [
@@ -171,6 +172,7 @@
 
         // Actual benchmarks.
         "tests/AssetManager2_bench.cpp",
+        "tests/AttributeResolution_bench.cpp",
         "tests/SparseEntry_bench.cpp",
         "tests/Theme_bench.cpp",
     ],
diff --git a/libs/androidfw/AssetManager2.cpp b/libs/androidfw/AssetManager2.cpp
index 415d3e3..a558ff7 100644
--- a/libs/androidfw/AssetManager2.cpp
+++ b/libs/androidfw/AssetManager2.cpp
@@ -36,6 +36,31 @@
 
 namespace android {
 
+struct FindEntryResult {
+  // A pointer to the resource table entry for this resource.
+  // If the size of the entry is > sizeof(ResTable_entry), it can be cast to
+  // a ResTable_map_entry and processed as a bag/map.
+  const ResTable_entry* entry;
+
+  // The configuration for which the resulting entry was defined. This is already swapped to host
+  // endianness.
+  ResTable_config config;
+
+  // The bitmask of configuration axis with which the resource value varies.
+  uint32_t type_flags;
+
+  // The dynamic package ID map for the package from which this resource came from.
+  const DynamicRefTable* dynamic_ref_table;
+
+  // The string pool reference to the type's name. This uses a different string pool than
+  // the global string pool, but this is hidden from the caller.
+  StringPoolRef type_string_ref;
+
+  // The string pool reference to the entry's name. This uses a different string pool than
+  // the global string pool, but this is hidden from the caller.
+  StringPoolRef entry_string_ref;
+};
+
 AssetManager2::AssetManager2() {
   memset(&configuration_, 0, sizeof(configuration_));
 }
@@ -44,6 +69,7 @@
                                  bool invalidate_caches) {
   apk_assets_ = apk_assets;
   BuildDynamicRefTable();
+  RebuildFilterList();
   if (invalidate_caches) {
     InvalidateCaches(static_cast<uint32_t>(-1));
   }
@@ -79,7 +105,7 @@
       PackageGroup* package_group = &package_groups_[idx];
 
       // Add the package and to the set of packages with the same ID.
-      package_group->packages_.push_back(package.get());
+      package_group->packages_.push_back(ConfiguredPackage{package.get(), {}});
       package_group->cookies_.push_back(static_cast<ApkAssetsCookie>(i));
 
       // Add the package name -> build time ID mappings.
@@ -94,7 +120,7 @@
   // Now assign the runtime IDs so that we have a build-time to runtime ID map.
   const auto package_groups_end = package_groups_.end();
   for (auto iter = package_groups_.begin(); iter != package_groups_end; ++iter) {
-    const std::string& package_name = iter->packages_[0]->GetPackageName();
+    const std::string& package_name = iter->packages_[0].loaded_package_->GetPackageName();
     for (auto iter2 = package_groups_.begin(); iter2 != package_groups_end; ++iter2) {
       iter2->dynamic_ref_table.addMapping(String16(package_name.c_str(), package_name.size()),
                                           iter->dynamic_ref_table.mAssignedPackageId);
@@ -108,17 +134,20 @@
   std::string list;
   for (size_t i = 0; i < package_ids_.size(); i++) {
     if (package_ids_[i] != 0xff) {
-      base::StringAppendF(&list, "%02x -> %d, ", (int) i, package_ids_[i]);
+      base::StringAppendF(&list, "%02x -> %d, ", (int)i, package_ids_[i]);
     }
   }
   LOG(INFO) << "Package ID map: " << list;
 
-  for (const auto& package_group: package_groups_) {
-      list = "";
-      for (const auto& package : package_group.packages_) {
-        base::StringAppendF(&list, "%s(%02x), ", package->GetPackageName().c_str(), package->GetPackageId());
-      }
-      LOG(INFO) << base::StringPrintf("PG (%02x): ", package_group.dynamic_ref_table.mAssignedPackageId) << list;
+  for (const auto& package_group : package_groups_) {
+    list = "";
+    for (const auto& package : package_group.packages_) {
+      base::StringAppendF(&list, "%s(%02x), ", package.loaded_package_->GetPackageName().c_str(),
+                          package.loaded_package_->GetPackageId());
+    }
+    LOG(INFO) << base::StringPrintf("PG (%02x): ",
+                                    package_group.dynamic_ref_table.mAssignedPackageId)
+              << list;
   }
 }
 
@@ -157,52 +186,54 @@
   configuration_ = configuration;
 
   if (diff) {
+    RebuildFilterList();
     InvalidateCaches(static_cast<uint32_t>(diff));
   }
 }
 
 std::set<ResTable_config> AssetManager2::GetResourceConfigurations(bool exclude_system,
-                                                                   bool exclude_mipmap) {
+                                                                   bool exclude_mipmap) const {
   ATRACE_CALL();
   std::set<ResTable_config> configurations;
   for (const PackageGroup& package_group : package_groups_) {
-    for (const LoadedPackage* package : package_group.packages_) {
-      if (exclude_system && package->IsSystem()) {
+    for (const ConfiguredPackage& package : package_group.packages_) {
+      if (exclude_system && package.loaded_package_->IsSystem()) {
         continue;
       }
-      package->CollectConfigurations(exclude_mipmap, &configurations);
+      package.loaded_package_->CollectConfigurations(exclude_mipmap, &configurations);
     }
   }
   return configurations;
 }
 
 std::set<std::string> AssetManager2::GetResourceLocales(bool exclude_system,
-                                                        bool merge_equivalent_languages) {
+                                                        bool merge_equivalent_languages) const {
   ATRACE_CALL();
   std::set<std::string> locales;
   for (const PackageGroup& package_group : package_groups_) {
-    for (const LoadedPackage* package : package_group.packages_) {
-      if (exclude_system && package->IsSystem()) {
+    for (const ConfiguredPackage& package : package_group.packages_) {
+      if (exclude_system && package.loaded_package_->IsSystem()) {
         continue;
       }
-      package->CollectLocales(merge_equivalent_languages, &locales);
+      package.loaded_package_->CollectLocales(merge_equivalent_languages, &locales);
     }
   }
   return locales;
 }
 
-std::unique_ptr<Asset> AssetManager2::Open(const std::string& filename, Asset::AccessMode mode) {
+std::unique_ptr<Asset> AssetManager2::Open(const std::string& filename,
+                                           Asset::AccessMode mode) const {
   const std::string new_path = "assets/" + filename;
   return OpenNonAsset(new_path, mode);
 }
 
 std::unique_ptr<Asset> AssetManager2::Open(const std::string& filename, ApkAssetsCookie cookie,
-                                           Asset::AccessMode mode) {
+                                           Asset::AccessMode mode) const {
   const std::string new_path = "assets/" + filename;
   return OpenNonAsset(new_path, cookie, mode);
 }
 
-std::unique_ptr<AssetDir> AssetManager2::OpenDir(const std::string& dirname) {
+std::unique_ptr<AssetDir> AssetManager2::OpenDir(const std::string& dirname) const {
   ATRACE_CALL();
 
   std::string full_path = "assets/" + dirname;
@@ -236,7 +267,7 @@
 // is inconsistent for split APKs.
 std::unique_ptr<Asset> AssetManager2::OpenNonAsset(const std::string& filename,
                                                    Asset::AccessMode mode,
-                                                   ApkAssetsCookie* out_cookie) {
+                                                   ApkAssetsCookie* out_cookie) const {
   ATRACE_CALL();
   for (int32_t i = apk_assets_.size() - 1; i >= 0; i--) {
     std::unique_ptr<Asset> asset = apk_assets_[i]->Open(filename, mode);
@@ -255,7 +286,8 @@
 }
 
 std::unique_ptr<Asset> AssetManager2::OpenNonAsset(const std::string& filename,
-                                                   ApkAssetsCookie cookie, Asset::AccessMode mode) {
+                                                   ApkAssetsCookie cookie,
+                                                   Asset::AccessMode mode) const {
   ATRACE_CALL();
   if (cookie < 0 || static_cast<size_t>(cookie) >= apk_assets_.size()) {
     return {};
@@ -264,14 +296,13 @@
 }
 
 ApkAssetsCookie AssetManager2::FindEntry(uint32_t resid, uint16_t density_override,
-                                         bool stop_at_first_match, FindEntryResult* out_entry) {
-  ATRACE_CALL();
-
+                                         bool /*stop_at_first_match*/,
+                                         FindEntryResult* out_entry) const {
   // Might use this if density_override != 0.
   ResTable_config density_override_config;
 
   // Select our configuration or generate a density override configuration.
-  ResTable_config* desired_config = &configuration_;
+  const ResTable_config* desired_config = &configuration_;
   if (density_override != 0 && density_override != configuration_.density) {
     density_override_config = configuration_;
     density_override_config.density = density_override;
@@ -285,53 +316,135 @@
 
   const uint32_t package_id = get_package_id(resid);
   const uint8_t type_idx = get_type_id(resid) - 1;
-  const uint16_t entry_id = get_entry_id(resid);
+  const uint16_t entry_idx = get_entry_id(resid);
 
-  const uint8_t idx = package_ids_[package_id];
-  if (idx == 0xff) {
+  const uint8_t package_idx = package_ids_[package_id];
+  if (package_idx == 0xff) {
     LOG(ERROR) << base::StringPrintf("No package ID %02x found for ID 0x%08x.", package_id, resid);
     return kInvalidCookie;
   }
 
-  FindEntryResult best_entry;
-  ApkAssetsCookie best_cookie = kInvalidCookie;
-  uint32_t cumulated_flags = 0u;
-
-  const PackageGroup& package_group = package_groups_[idx];
+  const PackageGroup& package_group = package_groups_[package_idx];
   const size_t package_count = package_group.packages_.size();
-  FindEntryResult current_entry;
-  for (size_t i = 0; i < package_count; i++) {
-    const LoadedPackage* loaded_package = package_group.packages_[i];
-    if (!loaded_package->FindEntry(type_idx, entry_id, *desired_config, &current_entry)) {
+
+  ApkAssetsCookie best_cookie = kInvalidCookie;
+  const LoadedPackage* best_package = nullptr;
+  const ResTable_type* best_type = nullptr;
+  const ResTable_config* best_config = nullptr;
+  ResTable_config best_config_copy;
+  uint32_t best_offset = 0u;
+  uint32_t type_flags = 0u;
+
+  // If desired_config is the same as the set configuration, then we can use our filtered list
+  // and we don't need to match the configurations, since they already matched.
+  const bool use_fast_path = desired_config == &configuration_;
+
+  for (size_t pi = 0; pi < package_count; pi++) {
+    const ConfiguredPackage& loaded_package_impl = package_group.packages_[pi];
+    const LoadedPackage* loaded_package = loaded_package_impl.loaded_package_;
+    ApkAssetsCookie cookie = package_group.cookies_[pi];
+
+    // If the type IDs are offset in this package, we need to take that into account when searching
+    // for a type.
+    const TypeSpec* type_spec = loaded_package->GetTypeSpecByTypeIndex(type_idx);
+    if (UNLIKELY(type_spec == nullptr)) {
       continue;
     }
 
-    cumulated_flags |= current_entry.type_flags;
+    uint16_t local_entry_idx = entry_idx;
 
-    const ResTable_config* current_config = current_entry.config;
-    const ResTable_config* best_config = best_entry.config;
-    if (best_cookie == kInvalidCookie ||
-        current_config->isBetterThan(*best_config, desired_config) ||
-        (loaded_package->IsOverlay() && current_config->compare(*best_config) == 0)) {
-      best_entry = current_entry;
-      best_cookie = package_group.cookies_[i];
-      if (stop_at_first_match) {
-        break;
+    // If there is an IDMAP supplied with this package, translate the entry ID.
+    if (type_spec->idmap_entries != nullptr) {
+      if (!LoadedIdmap::Lookup(type_spec->idmap_entries, local_entry_idx, &local_entry_idx)) {
+        // There is no mapping, so the resource is not meant to be in this overlay package.
+        continue;
+      }
+    }
+
+    type_flags |= type_spec->GetFlagsForEntryIndex(local_entry_idx);
+
+    // If the package is an overlay, then even configurations that are the same MUST be chosen.
+    const bool package_is_overlay = loaded_package->IsOverlay();
+
+    const FilteredConfigGroup& filtered_group = loaded_package_impl.filtered_configs_[type_idx];
+    if (use_fast_path) {
+      const std::vector<ResTable_config>& candidate_configs = filtered_group.configurations;
+      const size_t type_count = candidate_configs.size();
+      for (uint32_t i = 0; i < type_count; i++) {
+        const ResTable_config& this_config = candidate_configs[i];
+
+        // We can skip calling ResTable_config::match() because we know that all candidate
+        // configurations that do NOT match have been filtered-out.
+        if ((best_config == nullptr || this_config.isBetterThan(*best_config, desired_config)) ||
+            (package_is_overlay && this_config.compare(*best_config) == 0)) {
+          // The configuration matches and is better than the previous selection.
+          // Find the entry value if it exists for this configuration.
+          const ResTable_type* type_chunk = filtered_group.types[i];
+          const uint32_t offset = LoadedPackage::GetEntryOffset(type_chunk, local_entry_idx);
+          if (offset == ResTable_type::NO_ENTRY) {
+            continue;
+          }
+
+          best_cookie = cookie;
+          best_package = loaded_package;
+          best_type = type_chunk;
+          best_config = &this_config;
+          best_offset = offset;
+        }
+      }
+    } else {
+      // This is the slower path, which doesn't use the filtered list of configurations.
+      // Here we must read the ResTable_config from the mmapped APK, convert it to host endianness
+      // and fill in any new fields that did not exist when the APK was compiled.
+      // Furthermore when selecting configurations we can't just record the pointer to the
+      // ResTable_config, we must copy it.
+      const auto iter_end = type_spec->types + type_spec->type_count;
+      for (auto iter = type_spec->types; iter != iter_end; ++iter) {
+        ResTable_config this_config;
+        this_config.copyFromDtoH((*iter)->config);
+
+        if (this_config.match(*desired_config)) {
+          if ((best_config == nullptr || this_config.isBetterThan(*best_config, desired_config)) ||
+              (package_is_overlay && this_config.compare(*best_config) == 0)) {
+            // The configuration matches and is better than the previous selection.
+            // Find the entry value if it exists for this configuration.
+            const uint32_t offset = LoadedPackage::GetEntryOffset(*iter, local_entry_idx);
+            if (offset == ResTable_type::NO_ENTRY) {
+              continue;
+            }
+
+            best_cookie = cookie;
+            best_package = loaded_package;
+            best_type = *iter;
+            best_config_copy = this_config;
+            best_config = &best_config_copy;
+            best_offset = offset;
+          }
+        }
       }
     }
   }
 
-  if (best_cookie == kInvalidCookie) {
+  if (UNLIKELY(best_cookie == kInvalidCookie)) {
     return kInvalidCookie;
   }
 
-  *out_entry = best_entry;
+  const ResTable_entry* best_entry = LoadedPackage::GetEntryFromOffset(best_type, best_offset);
+  if (UNLIKELY(best_entry == nullptr)) {
+    return kInvalidCookie;
+  }
+
+  out_entry->entry = best_entry;
+  out_entry->config = *best_config;
+  out_entry->type_flags = type_flags;
+  out_entry->type_string_ref = StringPoolRef(best_package->GetTypeStringPool(), best_type->id - 1);
+  out_entry->entry_string_ref =
+      StringPoolRef(best_package->GetKeyStringPool(), best_entry->key.index);
   out_entry->dynamic_ref_table = &package_group.dynamic_ref_table;
-  out_entry->type_flags = cumulated_flags;
   return best_cookie;
 }
 
-bool AssetManager2::GetResourceName(uint32_t resid, ResourceName* out_name) {
+bool AssetManager2::GetResourceName(uint32_t resid, ResourceName* out_name) const {
   ATRACE_CALL();
 
   FindEntryResult entry;
@@ -341,7 +454,8 @@
     return false;
   }
 
-  const LoadedPackage* package = apk_assets_[cookie]->GetLoadedArsc()->GetPackageForId(resid);
+  const LoadedPackage* package =
+      apk_assets_[cookie]->GetLoadedArsc()->GetPackageById(get_package_id(resid));
   if (package == nullptr) {
     return false;
   }
@@ -369,7 +483,7 @@
   return true;
 }
 
-bool AssetManager2::GetResourceFlags(uint32_t resid, uint32_t* out_flags) {
+bool AssetManager2::GetResourceFlags(uint32_t resid, uint32_t* out_flags) const {
   FindEntryResult entry;
   ApkAssetsCookie cookie =
       FindEntry(resid, 0u /* density_override */, false /* stop_at_first_match */, &entry);
@@ -383,7 +497,7 @@
 ApkAssetsCookie AssetManager2::GetResource(uint32_t resid, bool may_be_bag,
                                            uint16_t density_override, Res_value* out_value,
                                            ResTable_config* out_selected_config,
-                                           uint32_t* out_flags) {
+                                           uint32_t* out_flags) const {
   ATRACE_CALL();
 
   FindEntryResult entry;
@@ -402,7 +516,7 @@
     // Create a reference since we can't represent this complex type as a Res_value.
     out_value->dataType = Res_value::TYPE_REFERENCE;
     out_value->data = resid;
-    *out_selected_config = *entry.config;
+    *out_selected_config = entry.config;
     *out_flags = entry.type_flags;
     return cookie;
   }
@@ -414,7 +528,7 @@
   // Convert the package ID to the runtime assigned package ID.
   entry.dynamic_ref_table->lookupResourceValue(out_value);
 
-  *out_selected_config = *entry.config;
+  *out_selected_config = entry.config;
   *out_flags = entry.type_flags;
   return cookie;
 }
@@ -422,16 +536,14 @@
 ApkAssetsCookie AssetManager2::ResolveReference(ApkAssetsCookie cookie, Res_value* in_out_value,
                                                 ResTable_config* in_out_selected_config,
                                                 uint32_t* in_out_flags,
-                                                uint32_t* out_last_reference) {
+                                                uint32_t* out_last_reference) const {
   ATRACE_CALL();
   constexpr const int kMaxIterations = 20;
 
   for (size_t iteration = 0u; in_out_value->dataType == Res_value::TYPE_REFERENCE &&
                               in_out_value->data != 0u && iteration < kMaxIterations;
        iteration++) {
-    if (out_last_reference != nullptr) {
-      *out_last_reference = in_out_value->data;
-    }
+    *out_last_reference = in_out_value->data;
     uint32_t new_flags = 0u;
     cookie = GetResource(in_out_value->data, true /*may_be_bag*/, 0u /*density_override*/,
                          in_out_value, in_out_selected_config, &new_flags);
@@ -492,7 +604,8 @@
         // Attributes, arrays, etc don't have a resource id as the name. They specify
         // other data, which would be wrong to change via a lookup.
         if (entry.dynamic_ref_table->lookupResourceId(&new_key) != NO_ERROR) {
-          LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", new_key, resid);
+          LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", new_key,
+                                           resid);
           return nullptr;
         }
       }
@@ -524,7 +637,8 @@
   const ResolvedBag* parent_bag = GetBag(parent_resid);
   if (parent_bag == nullptr) {
     // Failed to get the parent that should exist.
-    LOG(ERROR) << base::StringPrintf("Failed to find parent 0x%08x of bag 0x%08x.", parent_resid, resid);
+    LOG(ERROR) << base::StringPrintf("Failed to find parent 0x%08x of bag 0x%08x.", parent_resid,
+                                     resid);
     return nullptr;
   }
 
@@ -543,7 +657,8 @@
     uint32_t child_key = dtohl(map_entry->name.ident);
     if (!is_internal_resid(child_key)) {
       if (entry.dynamic_ref_table->lookupResourceId(&child_key) != NO_ERROR) {
-        LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", child_key, resid);
+        LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", child_key,
+                                         resid);
         return nullptr;
       }
     }
@@ -582,7 +697,8 @@
     uint32_t new_key = dtohl(map_entry->name.ident);
     if (!is_internal_resid(new_key)) {
       if (entry.dynamic_ref_table->lookupResourceId(&new_key) != NO_ERROR) {
-        LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", new_key, resid);
+        LOG(ERROR) << base::StringPrintf("Failed to resolve key 0x%08x in bag 0x%08x.", new_key,
+                                         resid);
         return nullptr;
       }
     }
@@ -638,7 +754,7 @@
 
 uint32_t AssetManager2::GetResourceId(const std::string& resource_name,
                                       const std::string& fallback_type,
-                                      const std::string& fallback_package) {
+                                      const std::string& fallback_package) const {
   StringPiece package_name, type, entry;
   if (!ExtractResourceName(resource_name, &package_name, &type, &entry)) {
     return 0u;
@@ -670,7 +786,8 @@
   const static std::u16string kAttrPrivate16 = u"^attr-private";
 
   for (const PackageGroup& package_group : package_groups_) {
-    for (const LoadedPackage* package : package_group.packages_) {
+    for (const ConfiguredPackage& package_impl : package_group.packages_) {
+      const LoadedPackage* package = package_impl.loaded_package_;
       if (package_name != package->GetPackageName()) {
         // All packages in the same group are expected to have the same package name.
         break;
@@ -692,6 +809,32 @@
   return 0u;
 }
 
+void AssetManager2::RebuildFilterList() {
+  for (PackageGroup& group : package_groups_) {
+    for (ConfiguredPackage& impl : group.packages_) {
+      // Destroy it.
+      impl.filtered_configs_.~ByteBucketArray();
+
+      // Re-create it.
+      new (&impl.filtered_configs_) ByteBucketArray<FilteredConfigGroup>();
+
+      // Create the filters here.
+      impl.loaded_package_->ForEachTypeSpec([&](const TypeSpec* spec, uint8_t type_index) {
+        FilteredConfigGroup& group = impl.filtered_configs_.editItemAt(type_index);
+        const auto iter_end = spec->types + spec->type_count;
+        for (auto iter = spec->types; iter != iter_end; ++iter) {
+          ResTable_config this_config;
+          this_config.copyFromDtoH((*iter)->config);
+          if (this_config.match(configuration_)) {
+            group.configurations.push_back(this_config);
+            group.types.push_back(*iter);
+          }
+        }
+      });
+    }
+  }
+}
+
 void AssetManager2::InvalidateCaches(uint32_t diff) {
   if (diff == 0xffffffffu) {
     // Everything must go.
@@ -872,7 +1015,7 @@
 ApkAssetsCookie Theme::ResolveAttributeReference(ApkAssetsCookie cookie, Res_value* in_out_value,
                                                  ResTable_config* in_out_selected_config,
                                                  uint32_t* in_out_type_spec_flags,
-                                                 uint32_t* out_last_ref) {
+                                                 uint32_t* out_last_ref) const {
   if (in_out_value->dataType == Res_value::TYPE_ATTRIBUTE) {
     uint32_t new_flags;
     cookie = GetAttribute(in_out_value->data, in_out_value, &new_flags);
diff --git a/libs/androidfw/AttributeResolution.cpp b/libs/androidfw/AttributeResolution.cpp
index 60e3845..f912af4 100644
--- a/libs/androidfw/AttributeResolution.cpp
+++ b/libs/androidfw/AttributeResolution.cpp
@@ -20,13 +20,18 @@
 
 #include <log/log.h>
 
+#include "androidfw/AssetManager2.h"
 #include "androidfw/AttributeFinder.h"
-#include "androidfw/ResourceTypes.h"
 
 constexpr bool kDebugStyles = false;
 
 namespace android {
 
+// Java asset cookies have 0 as an invalid cookie, but TypedArray expects < 0.
+static uint32_t ApkAssetsCookieToJavaCookie(ApkAssetsCookie cookie) {
+  return cookie != kInvalidCookie ? static_cast<uint32_t>(cookie + 1) : static_cast<uint32_t>(-1);
+}
+
 class XmlAttributeFinder
     : public BackTrackingAttributeFinder<XmlAttributeFinder, size_t> {
  public:
@@ -44,58 +49,53 @@
 };
 
 class BagAttributeFinder
-    : public BackTrackingAttributeFinder<BagAttributeFinder, const ResTable::bag_entry*> {
+    : public BackTrackingAttributeFinder<BagAttributeFinder, const ResolvedBag::Entry*> {
  public:
-  BagAttributeFinder(const ResTable::bag_entry* start,
-                     const ResTable::bag_entry* end)
-      : BackTrackingAttributeFinder(start, end) {}
+  BagAttributeFinder(const ResolvedBag* bag)
+      : BackTrackingAttributeFinder(bag != nullptr ? bag->entries : nullptr,
+                                    bag != nullptr ? bag->entries + bag->entry_count : nullptr) {
+  }
 
-  inline uint32_t GetAttribute(const ResTable::bag_entry* entry) const {
-    return entry->map.name.ident;
+  inline uint32_t GetAttribute(const ResolvedBag::Entry* entry) const {
+    return entry->key;
   }
 };
 
-bool ResolveAttrs(ResTable::Theme* theme, uint32_t def_style_attr,
-                  uint32_t def_style_res, uint32_t* src_values,
-                  size_t src_values_length, uint32_t* attrs,
-                  size_t attrs_length, uint32_t* out_values,
-                  uint32_t* out_indices) {
+bool ResolveAttrs(Theme* theme, uint32_t def_style_attr, uint32_t def_style_res,
+                  uint32_t* src_values, size_t src_values_length, uint32_t* attrs,
+                  size_t attrs_length, uint32_t* out_values, uint32_t* out_indices) {
   if (kDebugStyles) {
     ALOGI("APPLY STYLE: theme=0x%p defStyleAttr=0x%x defStyleRes=0x%x", theme,
           def_style_attr, def_style_res);
   }
 
-  const ResTable& res = theme->getResTable();
+  AssetManager2* assetmanager = theme->GetAssetManager();
   ResTable_config config;
   Res_value value;
 
   int indices_idx = 0;
 
   // Load default style from attribute, if specified...
-  uint32_t def_style_bag_type_set_flags = 0;
+  uint32_t def_style_flags = 0u;
   if (def_style_attr != 0) {
     Res_value value;
-    if (theme->getAttribute(def_style_attr, &value, &def_style_bag_type_set_flags) >= 0) {
+    if (theme->GetAttribute(def_style_attr, &value, &def_style_flags) != kInvalidCookie) {
       if (value.dataType == Res_value::TYPE_REFERENCE) {
         def_style_res = value.data;
       }
     }
   }
 
-  // Now lock down the resource object and start pulling stuff from it.
-  res.lock();
-
   // Retrieve the default style bag, if requested.
-  const ResTable::bag_entry* def_style_start = nullptr;
-  uint32_t def_style_type_set_flags = 0;
-  ssize_t bag_off = def_style_res != 0
-                        ? res.getBagLocked(def_style_res, &def_style_start,
-                                           &def_style_type_set_flags)
-                        : -1;
-  def_style_type_set_flags |= def_style_bag_type_set_flags;
-  const ResTable::bag_entry* const def_style_end =
-      def_style_start + (bag_off >= 0 ? bag_off : 0);
-  BagAttributeFinder def_style_attr_finder(def_style_start, def_style_end);
+  const ResolvedBag* default_style_bag = nullptr;
+  if (def_style_res != 0) {
+    default_style_bag = assetmanager->GetBag(def_style_res);
+    if (default_style_bag != nullptr) {
+      def_style_flags |= default_style_bag->type_spec_flags;
+    }
+  }
+
+  BagAttributeFinder def_style_attr_finder(default_style_bag);
 
   // Now iterate through all of the attributes that the client has requested,
   // filling in each with whatever data we can find.
@@ -106,7 +106,7 @@
       ALOGI("RETRIEVING ATTR 0x%08x...", cur_ident);
     }
 
-    ssize_t block = -1;
+    ApkAssetsCookie cookie = kInvalidCookie;
     uint32_t type_set_flags = 0;
 
     value.dataType = Res_value::TYPE_NULL;
@@ -122,15 +122,14 @@
       value.dataType = Res_value::TYPE_ATTRIBUTE;
       value.data = src_values[ii];
       if (kDebugStyles) {
-        ALOGI("-> From values: type=0x%x, data=0x%08x", value.dataType,
-              value.data);
+        ALOGI("-> From values: type=0x%x, data=0x%08x", value.dataType, value.data);
       }
     } else {
-      const ResTable::bag_entry* const def_style_entry = def_style_attr_finder.Find(cur_ident);
-      if (def_style_entry != def_style_end) {
-        block = def_style_entry->stringBlock;
-        type_set_flags = def_style_type_set_flags;
-        value = def_style_entry->map.value;
+      const ResolvedBag::Entry* const entry = def_style_attr_finder.Find(cur_ident);
+      if (entry != def_style_attr_finder.end()) {
+        cookie = entry->cookie;
+        type_set_flags = def_style_flags;
+        value = entry->value;
         if (kDebugStyles) {
           ALOGI("-> From def style: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
@@ -140,22 +139,26 @@
     uint32_t resid = 0;
     if (value.dataType != Res_value::TYPE_NULL) {
       // Take care of resolving the found resource to its final value.
-      ssize_t new_block =
-          theme->resolveAttributeReference(&value, block, &resid, &type_set_flags, &config);
-      if (new_block >= 0) block = new_block;
+      ApkAssetsCookie new_cookie =
+          theme->ResolveAttributeReference(cookie, &value, &config, &type_set_flags, &resid);
+      if (new_cookie != kInvalidCookie) {
+        cookie = new_cookie;
+      }
       if (kDebugStyles) {
         ALOGI("-> Resolved attr: type=0x%x, data=0x%08x", value.dataType, value.data);
       }
     } else if (value.data != Res_value::DATA_NULL_EMPTY) {
-      // If we still don't have a value for this attribute, try to find
-      // it in the theme!
-      ssize_t new_block = theme->getAttribute(cur_ident, &value, &type_set_flags);
-      if (new_block >= 0) {
+      // If we still don't have a value for this attribute, try to find it in the theme!
+      ApkAssetsCookie new_cookie = theme->GetAttribute(cur_ident, &value, &type_set_flags);
+      if (new_cookie != kInvalidCookie) {
         if (kDebugStyles) {
           ALOGI("-> From theme: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
-        new_block = res.resolveReference(&value, new_block, &resid, &type_set_flags, &config);
-        if (new_block >= 0) block = new_block;
+        new_cookie =
+            assetmanager->ResolveReference(new_cookie, &value, &config, &type_set_flags, &resid);
+        if (new_cookie != kInvalidCookie) {
+          cookie = new_cookie;
+        }
         if (kDebugStyles) {
           ALOGI("-> Resolved theme: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
@@ -169,7 +172,7 @@
       }
       value.dataType = Res_value::TYPE_NULL;
       value.data = Res_value::DATA_NULL_UNDEFINED;
-      block = -1;
+      cookie = kInvalidCookie;
     }
 
     if (kDebugStyles) {
@@ -179,9 +182,7 @@
     // Write the final value back to Java.
     out_values[STYLE_TYPE] = value.dataType;
     out_values[STYLE_DATA] = value.data;
-    out_values[STYLE_ASSET_COOKIE] =
-        block != -1 ? static_cast<uint32_t>(res.getTableCookie(block))
-                    : static_cast<uint32_t>(-1);
+    out_values[STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
     out_values[STYLE_RESOURCE_ID] = resid;
     out_values[STYLE_CHANGING_CONFIGURATIONS] = type_set_flags;
     out_values[STYLE_DENSITY] = config.density;
@@ -195,90 +196,80 @@
     out_values += STYLE_NUM_ENTRIES;
   }
 
-  res.unlock();
-
   if (out_indices != nullptr) {
     out_indices[0] = indices_idx;
   }
   return true;
 }
 
-void ApplyStyle(ResTable::Theme* theme, ResXMLParser* xml_parser, uint32_t def_style_attr,
-                uint32_t def_style_res, const uint32_t* attrs, size_t attrs_length,
+void ApplyStyle(Theme* theme, ResXMLParser* xml_parser, uint32_t def_style_attr,
+                uint32_t def_style_resid, const uint32_t* attrs, size_t attrs_length,
                 uint32_t* out_values, uint32_t* out_indices) {
   if (kDebugStyles) {
-    ALOGI("APPLY STYLE: theme=0x%p defStyleAttr=0x%x defStyleRes=0x%x xml=0x%p",
-          theme, def_style_attr, def_style_res, xml_parser);
+    ALOGI("APPLY STYLE: theme=0x%p defStyleAttr=0x%x defStyleRes=0x%x xml=0x%p", theme,
+          def_style_attr, def_style_resid, xml_parser);
   }
 
-  const ResTable& res = theme->getResTable();
+  AssetManager2* assetmanager = theme->GetAssetManager();
   ResTable_config config;
   Res_value value;
 
   int indices_idx = 0;
 
   // Load default style from attribute, if specified...
-  uint32_t def_style_bag_type_set_flags = 0;
+  uint32_t def_style_flags = 0u;
   if (def_style_attr != 0) {
     Res_value value;
-    if (theme->getAttribute(def_style_attr, &value,
-                            &def_style_bag_type_set_flags) >= 0) {
+    if (theme->GetAttribute(def_style_attr, &value, &def_style_flags) != kInvalidCookie) {
       if (value.dataType == Res_value::TYPE_REFERENCE) {
-        def_style_res = value.data;
+        def_style_resid = value.data;
       }
     }
   }
 
-  // Retrieve the style class associated with the current XML tag.
-  int style = 0;
-  uint32_t style_bag_type_set_flags = 0;
+  // Retrieve the style resource ID associated with the current XML tag's style attribute.
+  uint32_t style_resid = 0u;
+  uint32_t style_flags = 0u;
   if (xml_parser != nullptr) {
     ssize_t idx = xml_parser->indexOfStyle();
     if (idx >= 0 && xml_parser->getAttributeValue(idx, &value) >= 0) {
       if (value.dataType == value.TYPE_ATTRIBUTE) {
-        if (theme->getAttribute(value.data, &value, &style_bag_type_set_flags) < 0) {
+        // Resolve the attribute with out theme.
+        if (theme->GetAttribute(value.data, &value, &style_flags) == kInvalidCookie) {
           value.dataType = Res_value::TYPE_NULL;
         }
       }
+
       if (value.dataType == value.TYPE_REFERENCE) {
-        style = value.data;
+        style_resid = value.data;
       }
     }
   }
 
-  // Now lock down the resource object and start pulling stuff from it.
-  res.lock();
-
   // Retrieve the default style bag, if requested.
-  const ResTable::bag_entry* def_style_attr_start = nullptr;
-  uint32_t def_style_type_set_flags = 0;
-  ssize_t bag_off = def_style_res != 0
-                        ? res.getBagLocked(def_style_res, &def_style_attr_start,
-                                           &def_style_type_set_flags)
-                        : -1;
-  def_style_type_set_flags |= def_style_bag_type_set_flags;
-  const ResTable::bag_entry* const def_style_attr_end =
-      def_style_attr_start + (bag_off >= 0 ? bag_off : 0);
-  BagAttributeFinder def_style_attr_finder(def_style_attr_start,
-                                           def_style_attr_end);
+  const ResolvedBag* default_style_bag = nullptr;
+  if (def_style_resid != 0) {
+    default_style_bag = assetmanager->GetBag(def_style_resid);
+    if (default_style_bag != nullptr) {
+      def_style_flags |= default_style_bag->type_spec_flags;
+    }
+  }
+
+  BagAttributeFinder def_style_attr_finder(default_style_bag);
 
   // Retrieve the style class bag, if requested.
-  const ResTable::bag_entry* style_attr_start = nullptr;
-  uint32_t style_type_set_flags = 0;
-  bag_off =
-      style != 0
-          ? res.getBagLocked(style, &style_attr_start, &style_type_set_flags)
-          : -1;
-  style_type_set_flags |= style_bag_type_set_flags;
-  const ResTable::bag_entry* const style_attr_end =
-      style_attr_start + (bag_off >= 0 ? bag_off : 0);
-  BagAttributeFinder style_attr_finder(style_attr_start, style_attr_end);
+  const ResolvedBag* xml_style_bag = nullptr;
+  if (style_resid != 0) {
+    xml_style_bag = assetmanager->GetBag(style_resid);
+    if (xml_style_bag != nullptr) {
+      style_flags |= xml_style_bag->type_spec_flags;
+    }
+  }
+
+  BagAttributeFinder xml_style_attr_finder(xml_style_bag);
 
   // Retrieve the XML attributes, if requested.
-  static const ssize_t kXmlBlock = 0x10000000;
   XmlAttributeFinder xml_attr_finder(xml_parser);
-  const size_t xml_attr_end =
-      xml_parser != nullptr ? xml_parser->getAttributeCount() : 0;
 
   // Now iterate through all of the attributes that the client has requested,
   // filling in each with whatever data we can find.
@@ -289,8 +280,8 @@
       ALOGI("RETRIEVING ATTR 0x%08x...", cur_ident);
     }
 
-    ssize_t block = kXmlBlock;
-    uint32_t type_set_flags = 0;
+    ApkAssetsCookie cookie = kInvalidCookie;
+    uint32_t type_set_flags = 0u;
 
     value.dataType = Res_value::TYPE_NULL;
     value.data = Res_value::DATA_NULL_UNDEFINED;
@@ -302,7 +293,7 @@
 
     // Walk through the xml attributes looking for the requested attribute.
     const size_t xml_attr_idx = xml_attr_finder.Find(cur_ident);
-    if (xml_attr_idx != xml_attr_end) {
+    if (xml_attr_idx != xml_attr_finder.end()) {
       // We found the attribute we were looking for.
       xml_parser->getAttributeValue(xml_attr_idx, &value);
       if (kDebugStyles) {
@@ -312,12 +303,12 @@
 
     if (value.dataType == Res_value::TYPE_NULL && value.data != Res_value::DATA_NULL_EMPTY) {
       // Walk through the style class values looking for the requested attribute.
-      const ResTable::bag_entry* const style_attr_entry = style_attr_finder.Find(cur_ident);
-      if (style_attr_entry != style_attr_end) {
+      const ResolvedBag::Entry* entry = xml_style_attr_finder.Find(cur_ident);
+      if (entry != xml_style_attr_finder.end()) {
         // We found the attribute we were looking for.
-        block = style_attr_entry->stringBlock;
-        type_set_flags = style_type_set_flags;
-        value = style_attr_entry->map.value;
+        cookie = entry->cookie;
+        type_set_flags = style_flags;
+        value = entry->value;
         if (kDebugStyles) {
           ALOGI("-> From style: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
@@ -326,25 +317,25 @@
 
     if (value.dataType == Res_value::TYPE_NULL && value.data != Res_value::DATA_NULL_EMPTY) {
       // Walk through the default style values looking for the requested attribute.
-      const ResTable::bag_entry* const def_style_attr_entry = def_style_attr_finder.Find(cur_ident);
-      if (def_style_attr_entry != def_style_attr_end) {
+      const ResolvedBag::Entry* entry = def_style_attr_finder.Find(cur_ident);
+      if (entry != def_style_attr_finder.end()) {
         // We found the attribute we were looking for.
-        block = def_style_attr_entry->stringBlock;
-        type_set_flags = style_type_set_flags;
-        value = def_style_attr_entry->map.value;
+        cookie = entry->cookie;
+        type_set_flags = def_style_flags;
+        value = entry->value;
         if (kDebugStyles) {
           ALOGI("-> From def style: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
       }
     }
 
-    uint32_t resid = 0;
+    uint32_t resid = 0u;
     if (value.dataType != Res_value::TYPE_NULL) {
       // Take care of resolving the found resource to its final value.
-      ssize_t new_block =
-          theme->resolveAttributeReference(&value, block, &resid, &type_set_flags, &config);
-      if (new_block >= 0) {
-        block = new_block;
+      ApkAssetsCookie new_cookie =
+          theme->ResolveAttributeReference(cookie, &value, &config, &type_set_flags, &resid);
+      if (new_cookie != kInvalidCookie) {
+        cookie = new_cookie;
       }
 
       if (kDebugStyles) {
@@ -352,14 +343,15 @@
       }
     } else if (value.data != Res_value::DATA_NULL_EMPTY) {
       // If we still don't have a value for this attribute, try to find it in the theme!
-      ssize_t new_block = theme->getAttribute(cur_ident, &value, &type_set_flags);
-      if (new_block >= 0) {
+      ApkAssetsCookie new_cookie = theme->GetAttribute(cur_ident, &value, &type_set_flags);
+      if (new_cookie != kInvalidCookie) {
         if (kDebugStyles) {
           ALOGI("-> From theme: type=0x%x, data=0x%08x", value.dataType, value.data);
         }
-        new_block = res.resolveReference(&value, new_block, &resid, &type_set_flags, &config);
-        if (new_block >= 0) {
-          block = new_block;
+        new_cookie =
+            assetmanager->ResolveReference(new_cookie, &value, &config, &type_set_flags, &resid);
+        if (new_cookie != kInvalidCookie) {
+          cookie = new_cookie;
         }
 
         if (kDebugStyles) {
@@ -375,7 +367,7 @@
       }
       value.dataType = Res_value::TYPE_NULL;
       value.data = Res_value::DATA_NULL_UNDEFINED;
-      block = kXmlBlock;
+      cookie = kInvalidCookie;
     }
 
     if (kDebugStyles) {
@@ -385,9 +377,7 @@
     // Write the final value back to Java.
     out_values[STYLE_TYPE] = value.dataType;
     out_values[STYLE_DATA] = value.data;
-    out_values[STYLE_ASSET_COOKIE] =
-        block != kXmlBlock ? static_cast<uint32_t>(res.getTableCookie(block))
-                           : static_cast<uint32_t>(-1);
+    out_values[STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
     out_values[STYLE_RESOURCE_ID] = resid;
     out_values[STYLE_CHANGING_CONFIGURATIONS] = type_set_flags;
     out_values[STYLE_DENSITY] = config.density;
@@ -402,36 +392,28 @@
     out_values += STYLE_NUM_ENTRIES;
   }
 
-  res.unlock();
-
   // out_indices must NOT be nullptr.
   out_indices[0] = indices_idx;
 }
 
-bool RetrieveAttributes(const ResTable* res, ResXMLParser* xml_parser,
-                        uint32_t* attrs, size_t attrs_length,
-                        uint32_t* out_values, uint32_t* out_indices) {
+bool RetrieveAttributes(AssetManager2* assetmanager, ResXMLParser* xml_parser, uint32_t* attrs,
+                        size_t attrs_length, uint32_t* out_values, uint32_t* out_indices) {
   ResTable_config config;
   Res_value value;
 
   int indices_idx = 0;
 
-  // Now lock down the resource object and start pulling stuff from it.
-  res->lock();
-
   // Retrieve the XML attributes, if requested.
   const size_t xml_attr_count = xml_parser->getAttributeCount();
   size_t ix = 0;
   uint32_t cur_xml_attr = xml_parser->getAttributeNameResID(ix);
 
-  static const ssize_t kXmlBlock = 0x10000000;
-
   // Now iterate through all of the attributes that the client has requested,
   // filling in each with whatever data we can find.
   for (size_t ii = 0; ii < attrs_length; ii++) {
     const uint32_t cur_ident = attrs[ii];
-    ssize_t block = kXmlBlock;
-    uint32_t type_set_flags = 0;
+    ApkAssetsCookie cookie = kInvalidCookie;
+    uint32_t type_set_flags = 0u;
 
     value.dataType = Res_value::TYPE_NULL;
     value.data = Res_value::DATA_NULL_UNDEFINED;
@@ -450,28 +432,27 @@
       cur_xml_attr = xml_parser->getAttributeNameResID(ix);
     }
 
-    uint32_t resid = 0;
+    uint32_t resid = 0u;
     if (value.dataType != Res_value::TYPE_NULL) {
       // Take care of resolving the found resource to its final value.
-      // printf("Resolving attribute reference\n");
-      ssize_t new_block = res->resolveReference(&value, block, &resid,
-                                                &type_set_flags, &config);
-      if (new_block >= 0) block = new_block;
+      ApkAssetsCookie new_cookie =
+          assetmanager->ResolveReference(cookie, &value, &config, &type_set_flags, &resid);
+      if (new_cookie != kInvalidCookie) {
+        cookie = new_cookie;
+      }
     }
 
     // Deal with the special @null value -- it turns back to TYPE_NULL.
     if (value.dataType == Res_value::TYPE_REFERENCE && value.data == 0) {
       value.dataType = Res_value::TYPE_NULL;
       value.data = Res_value::DATA_NULL_UNDEFINED;
-      block = kXmlBlock;
+      cookie = kInvalidCookie;
     }
 
     // Write the final value back to Java.
     out_values[STYLE_TYPE] = value.dataType;
     out_values[STYLE_DATA] = value.data;
-    out_values[STYLE_ASSET_COOKIE] =
-        block != kXmlBlock ? static_cast<uint32_t>(res->getTableCookie(block))
-                           : static_cast<uint32_t>(-1);
+    out_values[STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
     out_values[STYLE_RESOURCE_ID] = resid;
     out_values[STYLE_CHANGING_CONFIGURATIONS] = type_set_flags;
     out_values[STYLE_DENSITY] = config.density;
@@ -485,8 +466,6 @@
     out_values += STYLE_NUM_ENTRIES;
   }
 
-  res->unlock();
-
   if (out_indices != nullptr) {
     out_indices[0] = indices_idx;
   }
diff --git a/libs/androidfw/LoadedArsc.cpp b/libs/androidfw/LoadedArsc.cpp
index 28548e2..1d2c597 100644
--- a/libs/androidfw/LoadedArsc.cpp
+++ b/libs/androidfw/LoadedArsc.cpp
@@ -44,44 +44,6 @@
 
 constexpr const static int kAppPackageId = 0x7f;
 
-// Element of a TypeSpec array. See TypeSpec.
-struct Type {
-  // The configuration for which this type defines entries.
-  // This is already converted to host endianness.
-  ResTable_config configuration;
-
-  // Pointer to the mmapped data where entry definitions are kept.
-  const ResTable_type* type;
-};
-
-// TypeSpec is going to be immediately proceeded by
-// an array of Type structs, all in the same block of memory.
-struct TypeSpec {
-  // Pointer to the mmapped data where flags are kept.
-  // Flags denote whether the resource entry is public
-  // and under which configurations it varies.
-  const ResTable_typeSpec* type_spec;
-
-  // Pointer to the mmapped data where the IDMAP mappings for this type
-  // exist. May be nullptr if no IDMAP exists.
-  const IdmapEntry_header* idmap_entries;
-
-  // The number of types that follow this struct.
-  // There is a type for each configuration
-  // that entries are defined for.
-  size_t type_count;
-
-  // Trick to easily access a variable number of Type structs
-  // proceeding this struct, and to ensure their alignment.
-  const Type types[0];
-};
-
-// TypeSpecPtr points to the block of memory that holds
-// a TypeSpec struct, followed by an array of Type structs.
-// TypeSpecPtr is a managed pointer that knows how to delete
-// itself.
-using TypeSpecPtr = util::unique_cptr<TypeSpec>;
-
 namespace {
 
 // Builder that helps accumulate Type structs and then create a single
@@ -95,21 +57,22 @@
   }
 
   void AddType(const ResTable_type* type) {
-    ResTable_config config;
-    config.copyFromDtoH(type->config);
-    types_.push_back(Type{config, type});
+    types_.push_back(type);
   }
 
   TypeSpecPtr Build() {
     // Check for overflow.
-    if ((std::numeric_limits<size_t>::max() - sizeof(TypeSpec)) / sizeof(Type) < types_.size()) {
+    using ElementType = const ResTable_type*;
+    if ((std::numeric_limits<size_t>::max() - sizeof(TypeSpec)) / sizeof(ElementType) <
+        types_.size()) {
       return {};
     }
-    TypeSpec* type_spec = (TypeSpec*)::malloc(sizeof(TypeSpec) + (types_.size() * sizeof(Type)));
+    TypeSpec* type_spec =
+        (TypeSpec*)::malloc(sizeof(TypeSpec) + (types_.size() * sizeof(ElementType)));
     type_spec->type_spec = header_;
     type_spec->idmap_entries = idmap_header_;
     type_spec->type_count = types_.size();
-    memcpy(type_spec + 1, types_.data(), types_.size() * sizeof(Type));
+    memcpy(type_spec + 1, types_.data(), types_.size() * sizeof(ElementType));
     return TypeSpecPtr(type_spec);
   }
 
@@ -118,7 +81,7 @@
 
   const ResTable_typeSpec* header_;
   const IdmapEntry_header* idmap_header_;
-  std::vector<Type> types_;
+  std::vector<const ResTable_type*> types_;
 };
 
 }  // namespace
@@ -162,18 +125,17 @@
   return true;
 }
 
-static bool VerifyResTableEntry(const ResTable_type* type, uint32_t entry_offset,
-                                size_t entry_idx) {
+static bool VerifyResTableEntry(const ResTable_type* type, uint32_t entry_offset) {
   // Check that the offset is aligned.
   if (entry_offset & 0x03) {
-    LOG(ERROR) << "Entry offset at index " << entry_idx << " is not 4-byte aligned.";
+    LOG(ERROR) << "Entry at offset " << entry_offset << " is not 4-byte aligned.";
     return false;
   }
 
   // Check that the offset doesn't overflow.
   if (entry_offset > std::numeric_limits<uint32_t>::max() - dtohl(type->entriesStart)) {
     // Overflow in offset.
-    LOG(ERROR) << "Entry offset at index " << entry_idx << " is too large.";
+    LOG(ERROR) << "Entry at offset " << entry_offset << " is too large.";
     return false;
   }
 
@@ -181,7 +143,7 @@
 
   entry_offset += dtohl(type->entriesStart);
   if (entry_offset > chunk_size - sizeof(ResTable_entry)) {
-    LOG(ERROR) << "Entry offset at index " << entry_idx
+    LOG(ERROR) << "Entry at offset " << entry_offset
                << " is too large. No room for ResTable_entry.";
     return false;
   }
@@ -191,13 +153,13 @@
 
   const size_t entry_size = dtohs(entry->size);
   if (entry_size < sizeof(*entry)) {
-    LOG(ERROR) << "ResTable_entry size " << entry_size << " at index " << entry_idx
+    LOG(ERROR) << "ResTable_entry size " << entry_size << " at offset " << entry_offset
                << " is too small.";
     return false;
   }
 
   if (entry_size > chunk_size || entry_offset > chunk_size - entry_size) {
-    LOG(ERROR) << "ResTable_entry size " << entry_size << " at index " << entry_idx
+    LOG(ERROR) << "ResTable_entry size " << entry_size << " at offset " << entry_offset
                << " is too large.";
     return false;
   }
@@ -205,7 +167,7 @@
   if (entry_size < sizeof(ResTable_map_entry)) {
     // There needs to be room for one Res_value struct.
     if (entry_offset + entry_size > chunk_size - sizeof(Res_value)) {
-      LOG(ERROR) << "No room for Res_value after ResTable_entry at index " << entry_idx
+      LOG(ERROR) << "No room for Res_value after ResTable_entry at offset " << entry_offset
                  << " for type " << (int)type->id << ".";
       return false;
     }
@@ -214,12 +176,12 @@
         reinterpret_cast<const Res_value*>(reinterpret_cast<const uint8_t*>(entry) + entry_size);
     const size_t value_size = dtohs(value->size);
     if (value_size < sizeof(Res_value)) {
-      LOG(ERROR) << "Res_value at index " << entry_idx << " is too small.";
+      LOG(ERROR) << "Res_value at offset " << entry_offset << " is too small.";
       return false;
     }
 
     if (value_size > chunk_size || entry_offset + entry_size > chunk_size - value_size) {
-      LOG(ERROR) << "Res_value size " << value_size << " at index " << entry_idx
+      LOG(ERROR) << "Res_value size " << value_size << " at offset " << entry_offset
                  << " is too large.";
       return false;
     }
@@ -228,119 +190,76 @@
     const size_t map_entry_count = dtohl(map->count);
     size_t map_entries_start = entry_offset + entry_size;
     if (map_entries_start & 0x03) {
-      LOG(ERROR) << "Map entries at index " << entry_idx << " start at unaligned offset.";
+      LOG(ERROR) << "Map entries at offset " << entry_offset << " start at unaligned offset.";
       return false;
     }
 
     // Each entry is sizeof(ResTable_map) big.
     if (map_entry_count > ((chunk_size - map_entries_start) / sizeof(ResTable_map))) {
-      LOG(ERROR) << "Too many map entries in ResTable_map_entry at index " << entry_idx << ".";
+      LOG(ERROR) << "Too many map entries in ResTable_map_entry at offset " << entry_offset << ".";
       return false;
     }
   }
   return true;
 }
 
-bool LoadedPackage::FindEntry(const TypeSpecPtr& type_spec_ptr, uint16_t entry_idx,
-                              const ResTable_config& config, FindEntryResult* out_entry) const {
-  const ResTable_config* best_config = nullptr;
-  const ResTable_type* best_type = nullptr;
-  uint32_t best_offset = 0;
+const ResTable_entry* LoadedPackage::GetEntry(const ResTable_type* type_chunk,
+                                              uint16_t entry_index) {
+  uint32_t entry_offset = GetEntryOffset(type_chunk, entry_index);
+  if (entry_offset == ResTable_type::NO_ENTRY) {
+    return nullptr;
+  }
+  return GetEntryFromOffset(type_chunk, entry_offset);
+}
 
-  for (uint32_t i = 0; i < type_spec_ptr->type_count; i++) {
-    const Type* type = &type_spec_ptr->types[i];
-    const ResTable_type* type_chunk = type->type;
+uint32_t LoadedPackage::GetEntryOffset(const ResTable_type* type_chunk, uint16_t entry_index) {
+  // The configuration matches and is better than the previous selection.
+  // Find the entry value if it exists for this configuration.
+  const size_t entry_count = dtohl(type_chunk->entryCount);
+  const size_t offsets_offset = dtohs(type_chunk->header.headerSize);
 
-    if (type->configuration.match(config) &&
-        (best_config == nullptr || type->configuration.isBetterThan(*best_config, &config))) {
-      // The configuration matches and is better than the previous selection.
-      // Find the entry value if it exists for this configuration.
-      const size_t entry_count = dtohl(type_chunk->entryCount);
-      const size_t offsets_offset = dtohs(type_chunk->header.headerSize);
+  // Check if there is the desired entry in this type.
 
-      // Check if there is the desired entry in this type.
-
-      if (type_chunk->flags & ResTable_type::FLAG_SPARSE) {
-        // This is encoded as a sparse map, so perform a binary search.
-        const ResTable_sparseTypeEntry* sparse_indices =
-            reinterpret_cast<const ResTable_sparseTypeEntry*>(
-                reinterpret_cast<const uint8_t*>(type_chunk) + offsets_offset);
-        const ResTable_sparseTypeEntry* sparse_indices_end = sparse_indices + entry_count;
-        const ResTable_sparseTypeEntry* result =
-            std::lower_bound(sparse_indices, sparse_indices_end, entry_idx,
-                             [](const ResTable_sparseTypeEntry& entry, uint16_t entry_idx) {
-                               return dtohs(entry.idx) < entry_idx;
-                             });
-
-        if (result == sparse_indices_end || dtohs(result->idx) != entry_idx) {
-          // No entry found.
-          continue;
-        }
-
-        // Extract the offset from the entry. Each offset must be a multiple of 4 so we store it as
-        // the real offset divided by 4.
-        best_offset = uint32_t{dtohs(result->offset)} * 4u;
-      } else {
-        if (entry_idx >= entry_count) {
-          // This entry cannot be here.
-          continue;
-        }
-
-        const uint32_t* entry_offsets = reinterpret_cast<const uint32_t*>(
+  if (type_chunk->flags & ResTable_type::FLAG_SPARSE) {
+    // This is encoded as a sparse map, so perform a binary search.
+    const ResTable_sparseTypeEntry* sparse_indices =
+        reinterpret_cast<const ResTable_sparseTypeEntry*>(
             reinterpret_cast<const uint8_t*>(type_chunk) + offsets_offset);
-        const uint32_t offset = dtohl(entry_offsets[entry_idx]);
-        if (offset == ResTable_type::NO_ENTRY) {
-          continue;
-        }
+    const ResTable_sparseTypeEntry* sparse_indices_end = sparse_indices + entry_count;
+    const ResTable_sparseTypeEntry* result =
+        std::lower_bound(sparse_indices, sparse_indices_end, entry_index,
+                         [](const ResTable_sparseTypeEntry& entry, uint16_t entry_idx) {
+                           return dtohs(entry.idx) < entry_idx;
+                         });
 
-        // There is an entry for this resource, record it.
-        best_offset = offset;
-      }
-
-      best_config = &type->configuration;
-      best_type = type_chunk;
+    if (result == sparse_indices_end || dtohs(result->idx) != entry_index) {
+      // No entry found.
+      return ResTable_type::NO_ENTRY;
     }
+
+    // Extract the offset from the entry. Each offset must be a multiple of 4 so we store it as
+    // the real offset divided by 4.
+    return uint32_t{dtohs(result->offset)} * 4u;
   }
 
-  if (best_type == nullptr) {
-    return false;
+  // This type is encoded as a dense array.
+  if (entry_index >= entry_count) {
+    // This entry cannot be here.
+    return ResTable_type::NO_ENTRY;
   }
 
-  if (UNLIKELY(!VerifyResTableEntry(best_type, best_offset, entry_idx))) {
-    return false;
-  }
-
-  const ResTable_entry* best_entry = reinterpret_cast<const ResTable_entry*>(
-      reinterpret_cast<const uint8_t*>(best_type) + best_offset + dtohl(best_type->entriesStart));
-
-  const uint32_t* flags = reinterpret_cast<const uint32_t*>(type_spec_ptr->type_spec + 1);
-  out_entry->type_flags = dtohl(flags[entry_idx]);
-  out_entry->entry = best_entry;
-  out_entry->config = best_config;
-  out_entry->type_string_ref = StringPoolRef(&type_string_pool_, best_type->id - 1);
-  out_entry->entry_string_ref = StringPoolRef(&key_string_pool_, dtohl(best_entry->key.index));
-  return true;
+  const uint32_t* entry_offsets = reinterpret_cast<const uint32_t*>(
+      reinterpret_cast<const uint8_t*>(type_chunk) + offsets_offset);
+  return dtohl(entry_offsets[entry_index]);
 }
 
-bool LoadedPackage::FindEntry(uint8_t type_idx, uint16_t entry_idx, const ResTable_config& config,
-                              FindEntryResult* out_entry) const {
-  ATRACE_CALL();
-
-  // If the type IDs are offset in this package, we need to take that into account when searching
-  // for a type.
-  const TypeSpecPtr& ptr = type_specs_[type_idx - type_id_offset_];
-  if (UNLIKELY(ptr == nullptr)) {
-    return false;
+const ResTable_entry* LoadedPackage::GetEntryFromOffset(const ResTable_type* type_chunk,
+                                                        uint32_t offset) {
+  if (UNLIKELY(!VerifyResTableEntry(type_chunk, offset))) {
+    return nullptr;
   }
-
-  // If there is an IDMAP supplied with this package, translate the entry ID.
-  if (ptr->idmap_entries != nullptr) {
-    if (!LoadedIdmap::Lookup(ptr->idmap_entries, entry_idx, &entry_idx)) {
-      // There is no mapping, so the resource is not meant to be in this overlay package.
-      return false;
-    }
-  }
-  return FindEntry(ptr, entry_idx, config, out_entry);
+  return reinterpret_cast<const ResTable_entry*>(reinterpret_cast<const uint8_t*>(type_chunk) +
+                                                 offset + dtohl(type_chunk->entriesStart));
 }
 
 void LoadedPackage::CollectConfigurations(bool exclude_mipmap,
@@ -348,7 +267,7 @@
   const static std::u16string kMipMap = u"mipmap";
   const size_t type_count = type_specs_.size();
   for (size_t i = 0; i < type_count; i++) {
-    const util::unique_cptr<TypeSpec>& type_spec = type_specs_[i];
+    const TypeSpecPtr& type_spec = type_specs_[i];
     if (type_spec != nullptr) {
       if (exclude_mipmap) {
         const int type_idx = type_spec->type_spec->id - 1;
@@ -369,8 +288,11 @@
         }
       }
 
-      for (size_t j = 0; j < type_spec->type_count; j++) {
-        out_configs->insert(type_spec->types[j].configuration);
+      const auto iter_end = type_spec->types + type_spec->type_count;
+      for (auto iter = type_spec->types; iter != iter_end; ++iter) {
+        ResTable_config config;
+        config.copyFromDtoH((*iter)->config);
+        out_configs->insert(config);
       }
     }
   }
@@ -380,10 +302,12 @@
   char temp_locale[RESTABLE_MAX_LOCALE_LEN];
   const size_t type_count = type_specs_.size();
   for (size_t i = 0; i < type_count; i++) {
-    const util::unique_cptr<TypeSpec>& type_spec = type_specs_[i];
+    const TypeSpecPtr& type_spec = type_specs_[i];
     if (type_spec != nullptr) {
-      for (size_t j = 0; j < type_spec->type_count; j++) {
-        const ResTable_config& configuration = type_spec->types[j].configuration;
+      const auto iter_end = type_spec->types + type_spec->type_count;
+      for (auto iter = type_spec->types; iter != iter_end; ++iter) {
+        ResTable_config configuration;
+        configuration.copyFromDtoH((*iter)->config);
         if (configuration.locale != 0) {
           configuration.getBcp47Locale(temp_locale, canonicalize);
           std::string locale(temp_locale);
@@ -411,17 +335,17 @@
     return 0u;
   }
 
-  for (size_t ti = 0; ti < type_spec->type_count; ti++) {
-    const Type* type = &type_spec->types[ti];
-    size_t entry_count = dtohl(type->type->entryCount);
+  const auto iter_end = type_spec->types + type_spec->type_count;
+  for (auto iter = type_spec->types; iter != iter_end; ++iter) {
+    const ResTable_type* type = *iter;
+    size_t entry_count = dtohl(type->entryCount);
     for (size_t entry_idx = 0; entry_idx < entry_count; entry_idx++) {
       const uint32_t* entry_offsets = reinterpret_cast<const uint32_t*>(
-          reinterpret_cast<const uint8_t*>(type->type) + dtohs(type->type->header.headerSize));
+          reinterpret_cast<const uint8_t*>(type) + dtohs(type->header.headerSize));
       const uint32_t offset = dtohl(entry_offsets[entry_idx]);
       if (offset != ResTable_type::NO_ENTRY) {
-        const ResTable_entry* entry =
-            reinterpret_cast<const ResTable_entry*>(reinterpret_cast<const uint8_t*>(type->type) +
-                                                    dtohl(type->type->entriesStart) + offset);
+        const ResTable_entry* entry = reinterpret_cast<const ResTable_entry*>(
+            reinterpret_cast<const uint8_t*>(type) + dtohl(type->entriesStart) + offset);
         if (dtohl(entry->key.index) == static_cast<uint32_t>(key_idx)) {
           // The package ID will be overridden by the caller (due to runtime assignment of package
           // IDs for shared libraries).
@@ -433,8 +357,7 @@
   return 0u;
 }
 
-const LoadedPackage* LoadedArsc::GetPackageForId(uint32_t resid) const {
-  const uint8_t package_id = get_package_id(resid);
+const LoadedPackage* LoadedArsc::GetPackageById(uint8_t package_id) const {
   for (const auto& loaded_package : packages_) {
     if (loaded_package->GetPackageId() == package_id) {
       return loaded_package.get();
@@ -682,26 +605,6 @@
   return std::move(loaded_package);
 }
 
-bool LoadedArsc::FindEntry(uint32_t resid, const ResTable_config& config,
-                           FindEntryResult* out_entry) const {
-  ATRACE_CALL();
-
-  const uint8_t package_id = get_package_id(resid);
-  const uint8_t type_id = get_type_id(resid);
-  const uint16_t entry_id = get_entry_id(resid);
-
-  if (UNLIKELY(type_id == 0)) {
-    LOG(ERROR) << base::StringPrintf("Invalid ID 0x%08x.", resid);
-    return false;
-  }
-
-  for (const auto& loaded_package : packages_) {
-    if (loaded_package->GetPackageId() == package_id) {
-      return loaded_package->FindEntry(type_id - 1, entry_id, config, out_entry);
-    }
-  }
-  return false;
-}
 
 bool LoadedArsc::LoadTable(const Chunk& chunk, const LoadedIdmap* loaded_idmap,
                            bool load_as_shared_library) {
diff --git a/libs/androidfw/include/androidfw/AssetManager2.h b/libs/androidfw/include/androidfw/AssetManager2.h
index b033137..ef08897 100644
--- a/libs/androidfw/include/androidfw/AssetManager2.h
+++ b/libs/androidfw/include/androidfw/AssetManager2.h
@@ -69,6 +69,8 @@
   Entry entries[0];
 };
 
+struct FindEntryResult;
+
 // AssetManager2 is the main entry point for accessing assets and resources.
 // AssetManager2 provides caching of resources retrieved via the underlying ApkAssets.
 class AssetManager2 {
@@ -127,7 +129,7 @@
   // If `exclude_mipmap` is set to true, resource configurations defined for resource type 'mipmap'
   // will be excluded from the list.
   std::set<ResTable_config> GetResourceConfigurations(bool exclude_system = false,
-                                                      bool exclude_mipmap = false);
+                                                      bool exclude_mipmap = false) const;
 
   // Returns all the locales for which there are resources defined. This includes resource
   // locales in all the ApkAssets set for this AssetManager.
@@ -136,24 +138,24 @@
   // If `merge_equivalent_languages` is set to true, resource locales will be canonicalized
   // and de-duped in the resulting list.
   std::set<std::string> GetResourceLocales(bool exclude_system = false,
-                                           bool merge_equivalent_languages = false);
+                                           bool merge_equivalent_languages = false) const;
 
   // Searches the set of APKs loaded by this AssetManager and opens the first one found located
   // in the assets/ directory.
   // `mode` controls how the file is opened.
   //
   // NOTE: The loaded APKs are searched in reverse order.
-  std::unique_ptr<Asset> Open(const std::string& filename, Asset::AccessMode mode);
+  std::unique_ptr<Asset> Open(const std::string& filename, Asset::AccessMode mode) const;
 
   // Opens a file within the assets/ directory of the APK specified by `cookie`.
   // `mode` controls how the file is opened.
   std::unique_ptr<Asset> Open(const std::string& filename, ApkAssetsCookie cookie,
-                              Asset::AccessMode mode);
+                              Asset::AccessMode mode) const;
 
   // Opens the directory specified by `dirname`. The result is an AssetDir that is the combination
   // of all directories matching `dirname` under the assets/ directory of every ApkAssets loaded.
   // The entries are sorted by their ASCII name.
-  std::unique_ptr<AssetDir> OpenDir(const std::string& dirname);
+  std::unique_ptr<AssetDir> OpenDir(const std::string& dirname) const;
 
   // Searches the set of APKs loaded by this AssetManager and opens the first one found.
   // `mode` controls how the file is opened.
@@ -161,24 +163,24 @@
   //
   // NOTE: The loaded APKs are searched in reverse order.
   std::unique_ptr<Asset> OpenNonAsset(const std::string& filename, Asset::AccessMode mode,
-                                      ApkAssetsCookie* out_cookie = nullptr);
+                                      ApkAssetsCookie* out_cookie = nullptr) const;
 
   // Opens a file in the APK specified by `cookie`. `mode` controls how the file is opened.
   // This is typically used to open a specific AndroidManifest.xml, or a binary XML file
   // referenced by a resource lookup with GetResource().
   std::unique_ptr<Asset> OpenNonAsset(const std::string& filename, ApkAssetsCookie cookie,
-                                      Asset::AccessMode mode);
+                                      Asset::AccessMode mode) const;
 
   // Populates the `out_name` parameter with resource name information.
   // Utf8 strings are preferred, and only if they are unavailable are
   // the Utf16 variants populated.
   // Returns false if the resource was not found or the name was missing/corrupt.
-  bool GetResourceName(uint32_t resid, ResourceName* out_name);
+  bool GetResourceName(uint32_t resid, ResourceName* out_name) const;
 
   // Populates `out_flags` with the bitmask of configuration axis that this resource varies with.
   // See ResTable_config for the list of configuration axis.
   // Returns false if the resource was not found.
-  bool GetResourceFlags(uint32_t resid, uint32_t* out_flags);
+  bool GetResourceFlags(uint32_t resid, uint32_t* out_flags) const;
 
   // Finds the resource ID assigned to `resource_name`.
   // `resource_name` must be of the form '[package:][type/]entry'.
@@ -186,7 +188,7 @@
   // If no type is specified in `resource_name`, then `fallback_type` is used as the type.
   // Returns 0x0 if no resource by that name was found.
   uint32_t GetResourceId(const std::string& resource_name, const std::string& fallback_type = {},
-                         const std::string& fallback_package = {});
+                         const std::string& fallback_package = {}) const;
 
   // Retrieves the best matching resource with ID `resid`. The resource value is filled into
   // `out_value` and the configuration for the selected value is populated in `out_selected_config`.
@@ -199,7 +201,7 @@
   // this function logs if the resource was a map/bag type before returning kInvalidCookie.
   ApkAssetsCookie GetResource(uint32_t resid, bool may_be_bag, uint16_t density_override,
                               Res_value* out_value, ResTable_config* out_selected_config,
-                              uint32_t* out_flags);
+                              uint32_t* out_flags) const;
 
   // Resolves the resource reference in `in_out_value` if the data type is
   // Res_value::TYPE_REFERENCE.
@@ -215,7 +217,7 @@
   // it was not found.
   ApkAssetsCookie ResolveReference(ApkAssetsCookie cookie, Res_value* in_out_value,
                                    ResTable_config* in_out_selected_config, uint32_t* in_out_flags,
-                                   uint32_t* out_last_reference);
+                                   uint32_t* out_last_reference) const;
 
   // Retrieves the best matching bag/map resource with ID `resid`.
   // This method will resolve all parent references for this bag and merge keys with the child.
@@ -233,9 +235,9 @@
   std::unique_ptr<Theme> NewTheme();
 
   template <typename Func>
-  void ForEachPackage(Func func) {
+  void ForEachPackage(Func func) const {
     for (const PackageGroup& package_group : package_groups_) {
-      func(package_group.packages_.front()->GetPackageName(),
+      func(package_group.packages_.front().loaded_package_->GetPackageName(),
            package_group.dynamic_ref_table.mAssignedPackageId);
     }
   }
@@ -260,7 +262,7 @@
   // NOTE: FindEntry takes care of ensuring that structs within FindEntryResult have been properly
   // bounds-checked. Callers of FindEntry are free to trust the data if this method succeeds.
   ApkAssetsCookie FindEntry(uint32_t resid, uint16_t density_override, bool stop_at_first_match,
-                            FindEntryResult* out_entry);
+                            FindEntryResult* out_entry) const;
 
   // Assigns package IDs to all shared library ApkAssets.
   // Should be called whenever the ApkAssets are changed.
@@ -270,13 +272,43 @@
   // bitmask `diff`.
   void InvalidateCaches(uint32_t diff);
 
+  // Triggers the re-construction of lists of types that match the set configuration.
+  // This should always be called when mutating the AssetManager's configuration or ApkAssets set.
+  void RebuildFilterList();
+
   // The ordered list of ApkAssets to search. These are not owned by the AssetManager, and must
   // have a longer lifetime.
   std::vector<const ApkAssets*> apk_assets_;
 
+  // A collection of configurations and their associated ResTable_type that match the current
+  // AssetManager configuration.
+  struct FilteredConfigGroup {
+    std::vector<ResTable_config> configurations;
+    std::vector<const ResTable_type*> types;
+  };
+
+  // Represents an single package.
+  struct ConfiguredPackage {
+    // A pointer to the immutable, loaded package info.
+    const LoadedPackage* loaded_package_;
+
+    // A mutable AssetManager-specific list of configurations that match the AssetManager's
+    // current configuration. This is used as an optimization to avoid checking every single
+    // candidate configuration when looking up resources.
+    ByteBucketArray<FilteredConfigGroup> filtered_configs_;
+  };
+
+  // Represents a logical package, which can be made up of many individual packages. Each package
+  // in a PackageGroup shares the same package name and package ID.
   struct PackageGroup {
-    std::vector<const LoadedPackage*> packages_;
+    // The set of packages that make-up this group.
+    std::vector<ConfiguredPackage> packages_;
+
+    // The cookies associated with each package in the group. They share the same order as
+    // packages_.
     std::vector<ApkAssetsCookie> cookies_;
+
+    // A library reference table that contains build-package ID to runtime-package ID mappings.
     DynamicRefTable dynamic_ref_table;
   };
 
@@ -350,7 +382,7 @@
   ApkAssetsCookie ResolveAttributeReference(ApkAssetsCookie cookie, Res_value* in_out_value,
                                             ResTable_config* in_out_selected_config = nullptr,
                                             uint32_t* in_out_type_spec_flags = nullptr,
-                                            uint32_t* out_last_ref = nullptr);
+                                            uint32_t* out_last_ref = nullptr) const;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Theme);
diff --git a/libs/androidfw/include/androidfw/AttributeFinder.h b/libs/androidfw/include/androidfw/AttributeFinder.h
index f281921..03fad49 100644
--- a/libs/androidfw/include/androidfw/AttributeFinder.h
+++ b/libs/androidfw/include/androidfw/AttributeFinder.h
@@ -58,6 +58,7 @@
   BackTrackingAttributeFinder(const Iterator& begin, const Iterator& end);
 
   Iterator Find(uint32_t attr);
+  inline Iterator end();
 
  private:
   void JumpToClosestAttribute(uint32_t package_id);
@@ -201,6 +202,11 @@
   return end_;
 }
 
+template <typename Derived, typename Iterator>
+Iterator BackTrackingAttributeFinder<Derived, Iterator>::end() {
+  return end_;
+}
+
 }  // namespace android
 
 #endif  // ANDROIDFW_ATTRIBUTE_FINDER_H
diff --git a/libs/androidfw/include/androidfw/AttributeResolution.h b/libs/androidfw/include/androidfw/AttributeResolution.h
index 69b76041..35ef98d 100644
--- a/libs/androidfw/include/androidfw/AttributeResolution.h
+++ b/libs/androidfw/include/androidfw/AttributeResolution.h
@@ -17,7 +17,8 @@
 #ifndef ANDROIDFW_ATTRIBUTERESOLUTION_H
 #define ANDROIDFW_ATTRIBUTERESOLUTION_H
 
-#include <androidfw/ResourceTypes.h>
+#include "androidfw/AssetManager2.h"
+#include "androidfw/ResourceTypes.h"
 
 namespace android {
 
@@ -42,19 +43,19 @@
 
 // `out_values` must NOT be nullptr.
 // `out_indices` may be nullptr.
-bool ResolveAttrs(ResTable::Theme* theme, uint32_t def_style_attr, uint32_t def_style_res,
+bool ResolveAttrs(Theme* theme, uint32_t def_style_attr, uint32_t def_style_resid,
                   uint32_t* src_values, size_t src_values_length, uint32_t* attrs,
                   size_t attrs_length, uint32_t* out_values, uint32_t* out_indices);
 
 // `out_values` must NOT be nullptr.
 // `out_indices` is NOT optional and must NOT be nullptr.
-void ApplyStyle(ResTable::Theme* theme, ResXMLParser* xml_parser, uint32_t def_style_attr,
-                uint32_t def_style_res, const uint32_t* attrs, size_t attrs_length,
+void ApplyStyle(Theme* theme, ResXMLParser* xml_parser, uint32_t def_style_attr,
+                uint32_t def_style_resid, const uint32_t* attrs, size_t attrs_length,
                 uint32_t* out_values, uint32_t* out_indices);
 
 // `out_values` must NOT be nullptr.
 // `out_indices` may be nullptr.
-bool RetrieveAttributes(const ResTable* res, ResXMLParser* xml_parser, uint32_t* attrs,
+bool RetrieveAttributes(AssetManager2* assetmanager, ResXMLParser* xml_parser, uint32_t* attrs,
                         size_t attrs_length, uint32_t* out_values, uint32_t* out_indices);
 
 }  // namespace android
diff --git a/libs/androidfw/include/androidfw/LoadedArsc.h b/libs/androidfw/include/androidfw/LoadedArsc.h
index 965e2db..35ae5fc 100644
--- a/libs/androidfw/include/androidfw/LoadedArsc.h
+++ b/libs/androidfw/include/androidfw/LoadedArsc.h
@@ -41,32 +41,40 @@
   int package_id = 0;
 };
 
-struct FindEntryResult {
-  // A pointer to the resource table entry for this resource.
-  // If the size of the entry is > sizeof(ResTable_entry), it can be cast to
-  // a ResTable_map_entry and processed as a bag/map.
-  const ResTable_entry* entry = nullptr;
+// TypeSpec is going to be immediately proceeded by
+// an array of Type structs, all in the same block of memory.
+struct TypeSpec {
+  // Pointer to the mmapped data where flags are kept.
+  // Flags denote whether the resource entry is public
+  // and under which configurations it varies.
+  const ResTable_typeSpec* type_spec;
 
-  // The configuration for which the resulting entry was defined.
-  const ResTable_config* config = nullptr;
+  // Pointer to the mmapped data where the IDMAP mappings for this type
+  // exist. May be nullptr if no IDMAP exists.
+  const IdmapEntry_header* idmap_entries;
 
-  // Stores the resulting bitmask of configuration axis with which the resource value varies.
-  uint32_t type_flags = 0u;
+  // The number of types that follow this struct.
+  // There is a type for each configuration that entries are defined for.
+  size_t type_count;
 
-  // The dynamic package ID map for the package from which this resource came from.
-  const DynamicRefTable* dynamic_ref_table = nullptr;
+  // Trick to easily access a variable number of Type structs
+  // proceeding this struct, and to ensure their alignment.
+  const ResTable_type* types[0];
 
-  // The string pool reference to the type's name. This uses a different string pool than
-  // the global string pool, but this is hidden from the caller.
-  StringPoolRef type_string_ref;
+  inline uint32_t GetFlagsForEntryIndex(uint16_t entry_index) const {
+    if (entry_index >= dtohl(type_spec->entryCount)) {
+      return 0u;
+    }
 
-  // The string pool reference to the entry's name. This uses a different string pool than
-  // the global string pool, but this is hidden from the caller.
-  StringPoolRef entry_string_ref;
+    const uint32_t* flags = reinterpret_cast<const uint32_t*>(type_spec + 1);
+    return flags[entry_index];
+  }
 };
 
-struct TypeSpec;
-class LoadedArsc;
+// TypeSpecPtr points to a block of memory that holds a TypeSpec struct, followed by an array of
+// ResTable_type pointers.
+// TypeSpecPtr is a managed pointer that knows how to delete itself.
+using TypeSpecPtr = util::unique_cptr<TypeSpec>;
 
 class LoadedPackage {
  public:
@@ -76,9 +84,6 @@
 
   ~LoadedPackage();
 
-  bool FindEntry(uint8_t type_idx, uint16_t entry_idx, const ResTable_config& config,
-                 FindEntryResult* out_entry) const;
-
   // Finds the entry with the specified type name and entry name. The names are in UTF-16 because
   // the underlying ResStringPool API expects this. For now this is acceptable, but since
   // the default policy in AAPT2 is to build UTF-8 string pools, this needs to change.
@@ -86,6 +91,12 @@
   // for patching the correct package ID to the resource ID.
   uint32_t FindEntryByName(const std::u16string& type_name, const std::u16string& entry_name) const;
 
+  static const ResTable_entry* GetEntry(const ResTable_type* type_chunk, uint16_t entry_index);
+
+  static uint32_t GetEntryOffset(const ResTable_type* type_chunk, uint16_t entry_index);
+
+  static const ResTable_entry* GetEntryFromOffset(const ResTable_type* type_chunk, uint32_t offset);
+
   // Returns the string pool where type names are stored.
   inline const ResStringPool* GetTypeStringPool() const {
     return &type_string_pool_;
@@ -135,14 +146,32 @@
   // before being inserted into the set. This may cause some equivalent locales to de-dupe.
   void CollectLocales(bool canonicalize, std::set<std::string>* out_locales) const;
 
+  // type_idx is TT - 1 from 0xPPTTEEEE.
+  inline const TypeSpec* GetTypeSpecByTypeIndex(uint8_t type_index) const {
+    // If the type IDs are offset in this package, we need to take that into account when searching
+    // for a type.
+    return type_specs_[type_index - type_id_offset_].get();
+  }
+
+  template <typename Func>
+  void ForEachTypeSpec(Func f) const {
+    for (size_t i = 0; i < type_specs_.size(); i++) {
+      const TypeSpecPtr& ptr = type_specs_[i];
+      if (ptr != nullptr) {
+        uint8_t type_id = ptr->type_spec->id;
+        if (ptr->idmap_entries != nullptr) {
+          type_id = ptr->idmap_entries->target_type_id;
+        }
+        f(ptr.get(), type_id - 1);
+      }
+    }
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(LoadedPackage);
 
   LoadedPackage();
 
-  bool FindEntry(const util::unique_cptr<TypeSpec>& type_spec_ptr, uint16_t entry_idx,
-                 const ResTable_config& config, FindEntryResult* out_entry) const;
-
   ResStringPool type_string_pool_;
   ResStringPool key_string_pool_;
   std::string package_name_;
@@ -152,7 +181,7 @@
   bool system_ = false;
   bool overlay_ = false;
 
-  ByteBucketArray<util::unique_cptr<TypeSpec>> type_specs_;
+  ByteBucketArray<TypeSpecPtr> type_specs_;
   std::vector<DynamicPackageEntry> dynamic_package_map_;
 };
 
@@ -180,25 +209,20 @@
     return &global_string_pool_;
   }
 
-  // Finds the resource with ID `resid` with the best value for configuration `config`.
-  // The parameter `out_entry` will be filled with the resulting resource entry.
-  // The resource entry can be a simple entry (ResTable_entry) or a complex bag
-  // (ResTable_entry_map).
-  bool FindEntry(uint32_t resid, const ResTable_config& config, FindEntryResult* out_entry) const;
-
-  // Gets a pointer to the name of the package in `resid`, or nullptr if the package doesn't exist.
-  const LoadedPackage* GetPackageForId(uint32_t resid) const;
-
-  // Returns true if this is a system provided resource.
-  inline bool IsSystem() const {
-    return system_;
-  }
+  // Gets a pointer to the package with the specified package ID, or nullptr if no such package
+  // exists.
+  const LoadedPackage* GetPackageById(uint8_t package_id) const;
 
   // Returns a vector of LoadedPackage pointers, representing the packages in this LoadedArsc.
   inline const std::vector<std::unique_ptr<const LoadedPackage>>& GetPackages() const {
     return packages_;
   }
 
+  // Returns true if this is a system provided resource.
+  inline bool IsSystem() const {
+    return system_;
+  }
+
  private:
   DISALLOW_COPY_AND_ASSIGN(LoadedArsc);
 
diff --git a/libs/androidfw/include/androidfw/MutexGuard.h b/libs/androidfw/include/androidfw/MutexGuard.h
new file mode 100644
index 0000000..64924f4
--- /dev/null
+++ b/libs/androidfw/include/androidfw/MutexGuard.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROIDFW_MUTEXGUARD_H
+#define ANDROIDFW_MUTEXGUARD_H
+
+#include <mutex>
+#include <type_traits>
+
+#include "android-base/macros.h"
+
+namespace android {
+
+template <typename T>
+class ScopedLock;
+
+// Owns the guarded object and protects access to it via a mutex.
+// The guarded object is inaccessible via this class.
+// The mutex is locked and the object accessed via the ScopedLock<T> class.
+//
+// NOTE: The template parameter T should not be a raw pointer, since ownership
+// is ambiguous and error-prone. Instead use an std::unique_ptr<>.
+//
+// Example use:
+//
+//   Guarded<std::string> shared_string("hello");
+//   {
+//     ScopedLock<std::string> locked_string(shared_string);
+//     *locked_string += " world";
+//   }
+//
+template <typename T>
+class Guarded {
+  static_assert(!std::is_pointer<T>::value, "T must not be a raw pointer");
+
+ public:
+  explicit Guarded() : guarded_() {
+  }
+
+  template <typename U = T>
+  explicit Guarded(const T& guarded,
+                   typename std::enable_if<std::is_copy_constructible<U>::value>::type = void())
+      : guarded_(guarded) {
+  }
+
+  template <typename U = T>
+  explicit Guarded(T&& guarded,
+                   typename std::enable_if<std::is_move_constructible<U>::value>::type = void())
+      : guarded_(std::move(guarded)) {
+  }
+
+ private:
+  friend class ScopedLock<T>;
+
+  DISALLOW_COPY_AND_ASSIGN(Guarded);
+
+  std::mutex lock_;
+  T guarded_;
+};
+
+template <typename T>
+class ScopedLock {
+ public:
+  explicit ScopedLock(Guarded<T>& guarded) : lock_(guarded.lock_), guarded_(guarded.guarded_) {
+  }
+
+  T& operator*() {
+    return guarded_;
+  }
+
+  T* operator->() {
+    return &guarded_;
+  }
+
+  T* get() {
+    return &guarded_;
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedLock);
+
+  std::lock_guard<std::mutex> lock_;
+  T& guarded_;
+};
+
+}  // namespace android
+
+#endif  // ANDROIDFW_MUTEXGUARD_H
diff --git a/libs/androidfw/tests/ApkAssets_test.cpp b/libs/androidfw/tests/ApkAssets_test.cpp
index 6c43a67..e2b9f00 100644
--- a/libs/androidfw/tests/ApkAssets_test.cpp
+++ b/libs/androidfw/tests/ApkAssets_test.cpp
@@ -26,58 +26,56 @@
 
 using ::android::base::unique_fd;
 using ::com::android::basic::R;
+using ::testing::Eq;
+using ::testing::Ge;
+using ::testing::NotNull;
+using ::testing::SizeIs;
+using ::testing::StrEq;
 
 namespace android {
 
 TEST(ApkAssetsTest, LoadApk) {
   std::unique_ptr<const ApkAssets> loaded_apk =
       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
 
   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
-  ASSERT_NE(nullptr, loaded_arsc);
-
-  const LoadedPackage* loaded_package = loaded_arsc->GetPackageForId(0x7f010000);
-  ASSERT_NE(nullptr, loaded_package);
-
-  std::unique_ptr<Asset> asset = loaded_apk->Open("res/layout/main.xml");
-  ASSERT_NE(nullptr, asset);
+  ASSERT_THAT(loaded_arsc, NotNull());
+  ASSERT_THAT(loaded_arsc->GetPackageById(0x7fu), NotNull());
+  ASSERT_THAT(loaded_apk->Open("res/layout/main.xml"), NotNull());
 }
 
 TEST(ApkAssetsTest, LoadApkFromFd) {
   const std::string path = GetTestDataPath() + "/basic/basic.apk";
   unique_fd fd(::open(path.c_str(), O_RDONLY | O_BINARY));
-  ASSERT_GE(fd.get(), 0);
+  ASSERT_THAT(fd.get(), Ge(0));
 
   std::unique_ptr<const ApkAssets> loaded_apk =
       ApkAssets::LoadFromFd(std::move(fd), path, false /*system*/, false /*force_shared_lib*/);
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
 
   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
-  ASSERT_NE(nullptr, loaded_arsc);
-
-  const LoadedPackage* loaded_package = loaded_arsc->GetPackageForId(0x7f010000);
-  ASSERT_NE(nullptr, loaded_package);
-
-  std::unique_ptr<Asset> asset = loaded_apk->Open("res/layout/main.xml");
-  ASSERT_NE(nullptr, asset);
+  ASSERT_THAT(loaded_arsc, NotNull());
+  ASSERT_THAT(loaded_arsc->GetPackageById(0x7fu), NotNull());
+  ASSERT_THAT(loaded_apk->Open("res/layout/main.xml"), NotNull());
 }
 
 TEST(ApkAssetsTest, LoadApkAsSharedLibrary) {
   std::unique_ptr<const ApkAssets> loaded_apk =
       ApkAssets::Load(GetTestDataPath() + "/appaslib/appaslib.apk");
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
+
   const LoadedArsc* loaded_arsc = loaded_apk->GetLoadedArsc();
-  ASSERT_NE(nullptr, loaded_arsc);
-  ASSERT_EQ(1u, loaded_arsc->GetPackages().size());
+  ASSERT_THAT(loaded_arsc, NotNull());
+  ASSERT_THAT(loaded_arsc->GetPackages(), SizeIs(1u));
   EXPECT_FALSE(loaded_arsc->GetPackages()[0]->IsDynamic());
 
   loaded_apk = ApkAssets::LoadAsSharedLibrary(GetTestDataPath() + "/appaslib/appaslib.apk");
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
 
   loaded_arsc = loaded_apk->GetLoadedArsc();
-  ASSERT_NE(nullptr, loaded_arsc);
-  ASSERT_EQ(1u, loaded_arsc->GetPackages().size());
+  ASSERT_THAT(loaded_arsc, NotNull());
+  ASSERT_THAT(loaded_arsc->GetPackages(), SizeIs(1u));
   EXPECT_TRUE(loaded_arsc->GetPackages()[0]->IsDynamic());
 }
 
@@ -86,19 +84,22 @@
   ResTable target_table;
   const std::string target_path = GetTestDataPath() + "/basic/basic.apk";
   ASSERT_TRUE(ReadFileFromZipToString(target_path, "resources.arsc", &contents));
-  ASSERT_EQ(NO_ERROR, target_table.add(contents.data(), contents.size(), 0, true /*copyData*/));
+  ASSERT_THAT(target_table.add(contents.data(), contents.size(), 0, true /*copyData*/),
+              Eq(NO_ERROR));
 
   ResTable overlay_table;
   const std::string overlay_path = GetTestDataPath() + "/overlay/overlay.apk";
   ASSERT_TRUE(ReadFileFromZipToString(overlay_path, "resources.arsc", &contents));
-  ASSERT_EQ(NO_ERROR, overlay_table.add(contents.data(), contents.size(), 0, true /*copyData*/));
+  ASSERT_THAT(overlay_table.add(contents.data(), contents.size(), 0, true /*copyData*/),
+              Eq(NO_ERROR));
 
   util::unique_cptr<void> idmap_data;
   void* temp_data;
   size_t idmap_len;
 
-  ASSERT_EQ(NO_ERROR, target_table.createIdmap(overlay_table, 0u, 0u, target_path.c_str(),
-                                               overlay_path.c_str(), &temp_data, &idmap_len));
+  ASSERT_THAT(target_table.createIdmap(overlay_table, 0u, 0u, target_path.c_str(),
+                                       overlay_path.c_str(), &temp_data, &idmap_len),
+              Eq(NO_ERROR));
   idmap_data.reset(temp_data);
 
   TemporaryFile tf;
@@ -108,37 +109,30 @@
   // Open something so that the destructor of TemporaryFile closes a valid fd.
   tf.fd = open("/dev/null", O_WRONLY);
 
-  std::unique_ptr<const ApkAssets> loaded_overlay_apk = ApkAssets::LoadOverlay(tf.path);
-  ASSERT_NE(nullptr, loaded_overlay_apk);
+  ASSERT_THAT(ApkAssets::LoadOverlay(tf.path), NotNull());
 }
 
 TEST(ApkAssetsTest, CreateAndDestroyAssetKeepsApkAssetsOpen) {
   std::unique_ptr<const ApkAssets> loaded_apk =
       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
 
-  {
-    std::unique_ptr<Asset> assets = loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER);
-    ASSERT_NE(nullptr, assets);
-  }
+  { ASSERT_THAT(loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER), NotNull()); }
 
-  {
-    std::unique_ptr<Asset> assets = loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER);
-    ASSERT_NE(nullptr, assets);
-  }
+  { ASSERT_THAT(loaded_apk->Open("res/layout/main.xml", Asset::ACCESS_BUFFER), NotNull()); }
 }
 
 TEST(ApkAssetsTest, OpenUncompressedAssetFd) {
   std::unique_ptr<const ApkAssets> loaded_apk =
       ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
-  ASSERT_NE(nullptr, loaded_apk);
+  ASSERT_THAT(loaded_apk, NotNull());
 
   auto asset = loaded_apk->Open("assets/uncompressed.txt", Asset::ACCESS_UNKNOWN);
-  ASSERT_NE(nullptr, asset);
+  ASSERT_THAT(asset, NotNull());
 
   off64_t start, length;
   unique_fd fd(asset->openFileDescriptor(&start, &length));
-  EXPECT_GE(fd.get(), 0);
+  ASSERT_THAT(fd.get(), Ge(0));
 
   lseek64(fd.get(), start, SEEK_SET);
 
@@ -146,7 +140,7 @@
   buffer.resize(length);
   ASSERT_TRUE(base::ReadFully(fd.get(), &*buffer.begin(), length));
 
-  EXPECT_EQ("This should be uncompressed.\n\n", buffer);
+  EXPECT_THAT(buffer, StrEq("This should be uncompressed.\n\n"));
 }
 
 }  // namespace android
diff --git a/libs/androidfw/tests/AssetManager2_bench.cpp b/libs/androidfw/tests/AssetManager2_bench.cpp
index 85e8f25..437e147 100644
--- a/libs/androidfw/tests/AssetManager2_bench.cpp
+++ b/libs/androidfw/tests/AssetManager2_bench.cpp
@@ -81,17 +81,18 @@
 }
 BENCHMARK(BM_AssetManagerLoadFrameworkAssetsOld);
 
-static void BM_AssetManagerGetResource(benchmark::State& state) {
-  GetResourceBenchmark({GetTestDataPath() + "/basic/basic.apk"}, nullptr /*config*/,
-                       basic::R::integer::number1, state);
+static void BM_AssetManagerGetResource(benchmark::State& state, uint32_t resid) {
+  GetResourceBenchmark({GetTestDataPath() + "/basic/basic.apk"}, nullptr /*config*/, resid, state);
 }
-BENCHMARK(BM_AssetManagerGetResource);
+BENCHMARK_CAPTURE(BM_AssetManagerGetResource, number1, basic::R::integer::number1);
+BENCHMARK_CAPTURE(BM_AssetManagerGetResource, deep_ref, basic::R::integer::deep_ref);
 
-static void BM_AssetManagerGetResourceOld(benchmark::State& state) {
-  GetResourceBenchmarkOld({GetTestDataPath() + "/basic/basic.apk"}, nullptr /*config*/,
-                          basic::R::integer::number1, state);
+static void BM_AssetManagerGetResourceOld(benchmark::State& state, uint32_t resid) {
+  GetResourceBenchmarkOld({GetTestDataPath() + "/basic/basic.apk"}, nullptr /*config*/, resid,
+                          state);
 }
-BENCHMARK(BM_AssetManagerGetResourceOld);
+BENCHMARK_CAPTURE(BM_AssetManagerGetResourceOld, number1, basic::R::integer::number1);
+BENCHMARK_CAPTURE(BM_AssetManagerGetResourceOld, deep_ref, basic::R::integer::deep_ref);
 
 static void BM_AssetManagerGetLibraryResource(benchmark::State& state) {
   GetResourceBenchmark(
@@ -196,7 +197,7 @@
 static void BM_AssetManagerGetResourceLocalesOld(benchmark::State& state) {
   AssetManager assets;
   if (!assets.addAssetPath(String8(kFrameworkPath), nullptr /*cookie*/, false /*appAsLib*/,
-                           false /*isSystemAssets*/)) {
+                           true /*isSystemAssets*/)) {
     state.SkipWithError("Failed to load assets");
     return;
   }
@@ -211,4 +212,44 @@
 }
 BENCHMARK(BM_AssetManagerGetResourceLocalesOld);
 
+static void BM_AssetManagerSetConfigurationFramework(benchmark::State& state) {
+  std::unique_ptr<const ApkAssets> apk = ApkAssets::Load(kFrameworkPath);
+  if (apk == nullptr) {
+    state.SkipWithError("Failed to load assets");
+    return;
+  }
+
+  AssetManager2 assets;
+  assets.SetApkAssets({apk.get()});
+
+  ResTable_config config;
+  memset(&config, 0, sizeof(config));
+
+  while (state.KeepRunning()) {
+    config.sdkVersion = ~config.sdkVersion;
+    assets.SetConfiguration(config);
+  }
+}
+BENCHMARK(BM_AssetManagerSetConfigurationFramework);
+
+static void BM_AssetManagerSetConfigurationFrameworkOld(benchmark::State& state) {
+  AssetManager assets;
+  if (!assets.addAssetPath(String8(kFrameworkPath), nullptr /*cookie*/, false /*appAsLib*/,
+                           true /*isSystemAssets*/)) {
+    state.SkipWithError("Failed to load assets");
+    return;
+  }
+
+  const ResTable& table = assets.getResources(true);
+
+  ResTable_config config;
+  memset(&config, 0, sizeof(config));
+
+  while (state.KeepRunning()) {
+    config.sdkVersion = ~config.sdkVersion;
+    assets.setConfiguration(config);
+  }
+}
+BENCHMARK(BM_AssetManagerSetConfigurationFrameworkOld);
+
 }  // namespace android
diff --git a/libs/androidfw/tests/AttributeResolution_bench.cpp b/libs/androidfw/tests/AttributeResolution_bench.cpp
new file mode 100644
index 0000000..fa300c5
--- /dev/null
+++ b/libs/androidfw/tests/AttributeResolution_bench.cpp
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "benchmark/benchmark.h"
+
+//#include "android-base/stringprintf.h"
+#include "androidfw/ApkAssets.h"
+#include "androidfw/AssetManager.h"
+#include "androidfw/AssetManager2.h"
+#include "androidfw/AttributeResolution.h"
+#include "androidfw/ResourceTypes.h"
+
+#include "BenchmarkHelpers.h"
+#include "data/basic/R.h"
+#include "data/styles/R.h"
+
+namespace app = com::android::app;
+namespace basic = com::android::basic;
+
+namespace android {
+
+constexpr const static char* kFrameworkPath = "/system/framework/framework-res.apk";
+constexpr const static uint32_t Theme_Material_Light = 0x01030237u;
+
+static void BM_ApplyStyle(benchmark::State& state) {
+  std::unique_ptr<const ApkAssets> styles_apk =
+      ApkAssets::Load(GetTestDataPath() + "/styles/styles.apk");
+  if (styles_apk == nullptr) {
+    state.SkipWithError("failed to load assets");
+    return;
+  }
+
+  AssetManager2 assetmanager;
+  assetmanager.SetApkAssets({styles_apk.get()});
+
+  std::unique_ptr<Asset> asset =
+      assetmanager.OpenNonAsset("res/layout/layout.xml", Asset::ACCESS_BUFFER);
+  if (asset == nullptr) {
+    state.SkipWithError("failed to load layout");
+    return;
+  }
+
+  ResXMLTree xml_tree;
+  if (xml_tree.setTo(asset->getBuffer(true), asset->getLength(), false /*copyData*/) != NO_ERROR) {
+    state.SkipWithError("corrupt xml layout");
+    return;
+  }
+
+  // Skip to the first tag.
+  while (xml_tree.next() != ResXMLParser::START_TAG) {
+  }
+
+  std::unique_ptr<Theme> theme = assetmanager.NewTheme();
+  theme->ApplyStyle(app::R::style::StyleTwo);
+
+  std::array<uint32_t, 6> attrs{{app::R::attr::attr_one, app::R::attr::attr_two,
+                                 app::R::attr::attr_three, app::R::attr::attr_four,
+                                 app::R::attr::attr_five, app::R::attr::attr_empty}};
+  std::array<uint32_t, attrs.size() * STYLE_NUM_ENTRIES> values;
+  std::array<uint32_t, attrs.size() + 1> indices;
+
+  while (state.KeepRunning()) {
+    ApplyStyle(theme.get(), &xml_tree, 0u /*def_style_attr*/, 0u /*def_style_res*/, attrs.data(),
+               attrs.size(), values.data(), indices.data());
+  }
+}
+BENCHMARK(BM_ApplyStyle);
+
+static void BM_ApplyStyleFramework(benchmark::State& state) {
+  std::unique_ptr<const ApkAssets> framework_apk = ApkAssets::Load(kFrameworkPath);
+  if (framework_apk == nullptr) {
+    state.SkipWithError("failed to load framework assets");
+    return;
+  }
+
+  std::unique_ptr<const ApkAssets> basic_apk =
+      ApkAssets::Load(GetTestDataPath() + "/basic/basic.apk");
+  if (basic_apk == nullptr) {
+    state.SkipWithError("failed to load assets");
+    return;
+  }
+
+  AssetManager2 assetmanager;
+  assetmanager.SetApkAssets({framework_apk.get(), basic_apk.get()});
+
+  ResTable_config device_config;
+  memset(&device_config, 0, sizeof(device_config));
+  device_config.language[0] = 'e';
+  device_config.language[1] = 'n';
+  device_config.country[0] = 'U';
+  device_config.country[1] = 'S';
+  device_config.orientation = ResTable_config::ORIENTATION_PORT;
+  device_config.smallestScreenWidthDp = 700;
+  device_config.screenWidthDp = 700;
+  device_config.screenHeightDp = 1024;
+  device_config.sdkVersion = 27;
+
+  Res_value value;
+  ResTable_config config;
+  uint32_t flags = 0u;
+  ApkAssetsCookie cookie =
+      assetmanager.GetResource(basic::R::layout::layoutt, false /*may_be_bag*/,
+                               0u /*density_override*/, &value, &config, &flags);
+  if (cookie == kInvalidCookie) {
+    state.SkipWithError("failed to find R.layout.layout");
+    return;
+  }
+
+  size_t len = 0u;
+  const char* layout_path =
+      assetmanager.GetStringPoolForCookie(cookie)->string8At(value.data, &len);
+  if (layout_path == nullptr || len == 0u) {
+    state.SkipWithError("failed to lookup layout path");
+    return;
+  }
+
+  std::unique_ptr<Asset> asset = assetmanager.OpenNonAsset(
+      StringPiece(layout_path, len).to_string(), cookie, Asset::ACCESS_BUFFER);
+  if (asset == nullptr) {
+    state.SkipWithError("failed to load layout");
+    return;
+  }
+
+  ResXMLTree xml_tree;
+  if (xml_tree.setTo(asset->getBuffer(true), asset->getLength(), false /*copyData*/) != NO_ERROR) {
+    state.SkipWithError("corrupt xml layout");
+    return;
+  }
+
+  // Skip to the first tag.
+  while (xml_tree.next() != ResXMLParser::START_TAG) {
+  }
+
+  std::unique_ptr<Theme> theme = assetmanager.NewTheme();
+  theme->ApplyStyle(Theme_Material_Light);
+
+  std::array<uint32_t, 92> attrs{
+      {0x0101000e, 0x01010034, 0x01010095, 0x01010096, 0x01010097, 0x01010098, 0x01010099,
+       0x0101009a, 0x0101009b, 0x010100ab, 0x010100af, 0x010100b0, 0x010100b1, 0x0101011f,
+       0x01010120, 0x0101013f, 0x01010140, 0x0101014e, 0x0101014f, 0x01010150, 0x01010151,
+       0x01010152, 0x01010153, 0x01010154, 0x01010155, 0x01010156, 0x01010157, 0x01010158,
+       0x01010159, 0x0101015a, 0x0101015b, 0x0101015c, 0x0101015d, 0x0101015e, 0x0101015f,
+       0x01010160, 0x01010161, 0x01010162, 0x01010163, 0x01010164, 0x01010165, 0x01010166,
+       0x01010167, 0x01010168, 0x01010169, 0x0101016a, 0x0101016b, 0x0101016c, 0x0101016d,
+       0x0101016e, 0x0101016f, 0x01010170, 0x01010171, 0x01010217, 0x01010218, 0x0101021d,
+       0x01010220, 0x01010223, 0x01010224, 0x01010264, 0x01010265, 0x01010266, 0x010102c5,
+       0x010102c6, 0x010102c7, 0x01010314, 0x01010315, 0x01010316, 0x0101035e, 0x0101035f,
+       0x01010362, 0x01010374, 0x0101038c, 0x01010392, 0x01010393, 0x010103ac, 0x0101045d,
+       0x010104b6, 0x010104b7, 0x010104d6, 0x010104d7, 0x010104dd, 0x010104de, 0x010104df,
+       0x01010535, 0x01010536, 0x01010537, 0x01010538, 0x01010546, 0x01010567, 0x011100c9,
+       0x011100ca}};
+
+  std::array<uint32_t, attrs.size() * STYLE_NUM_ENTRIES> values;
+  std::array<uint32_t, attrs.size() + 1> indices;
+  while (state.KeepRunning()) {
+    ApplyStyle(theme.get(), &xml_tree, 0x01010084u /*def_style_attr*/, 0u /*def_style_res*/,
+               attrs.data(), attrs.size(), values.data(), indices.data());
+  }
+}
+BENCHMARK(BM_ApplyStyleFramework);
+
+}  // namespace android
diff --git a/libs/androidfw/tests/AttributeResolution_test.cpp b/libs/androidfw/tests/AttributeResolution_test.cpp
index 2d73ce8..cc30537 100644
--- a/libs/androidfw/tests/AttributeResolution_test.cpp
+++ b/libs/androidfw/tests/AttributeResolution_test.cpp
@@ -21,6 +21,7 @@
 #include "android-base/file.h"
 #include "android-base/logging.h"
 #include "android-base/macros.h"
+#include "androidfw/AssetManager2.h"
 
 #include "TestHelpers.h"
 #include "data/styles/R.h"
@@ -32,15 +33,14 @@
 class AttributeResolutionTest : public ::testing::Test {
  public:
   virtual void SetUp() override {
-    std::string contents;
-    ASSERT_TRUE(ReadFileFromZipToString(
-        GetTestDataPath() + "/styles/styles.apk", "resources.arsc", &contents));
-    ASSERT_EQ(NO_ERROR, table_.add(contents.data(), contents.size(),
-                                   1 /*cookie*/, true /*copyData*/));
+    styles_assets_ = ApkAssets::Load(GetTestDataPath() + "/styles/styles.apk");
+    ASSERT_NE(nullptr, styles_assets_);
+    assetmanager_.SetApkAssets({styles_assets_.get()});
   }
 
  protected:
-  ResTable table_;
+  std::unique_ptr<const ApkAssets> styles_assets_;
+  AssetManager2 assetmanager_;
 };
 
 class AttributeResolutionXmlTest : public AttributeResolutionTest {
@@ -48,13 +48,12 @@
   virtual void SetUp() override {
     AttributeResolutionTest::SetUp();
 
-    std::string contents;
-    ASSERT_TRUE(
-        ReadFileFromZipToString(GetTestDataPath() + "/styles/styles.apk",
-                                "res/layout/layout.xml", &contents));
+    std::unique_ptr<Asset> asset =
+        assetmanager_.OpenNonAsset("res/layout/layout.xml", Asset::ACCESS_BUFFER);
+    ASSERT_NE(nullptr, asset);
 
-    ASSERT_EQ(NO_ERROR, xml_parser_.setTo(contents.data(), contents.size(),
-                                          true /*copyData*/));
+    ASSERT_EQ(NO_ERROR,
+              xml_parser_.setTo(asset->getBuffer(true), asset->getLength(), true /*copyData*/));
 
     // Skip to the first tag.
     while (xml_parser_.next() != ResXMLParser::START_TAG) {
@@ -66,14 +65,14 @@
 };
 
 TEST_F(AttributeResolutionTest, Theme) {
-  ResTable::Theme theme(table_);
-  ASSERT_EQ(NO_ERROR, theme.applyStyle(R::style::StyleTwo));
+  std::unique_ptr<Theme> theme = assetmanager_.NewTheme();
+  ASSERT_TRUE(theme->ApplyStyle(R::style::StyleTwo));
 
   std::array<uint32_t, 5> attrs{{R::attr::attr_one, R::attr::attr_two, R::attr::attr_three,
                                  R::attr::attr_four, R::attr::attr_empty}};
   std::array<uint32_t, attrs.size() * STYLE_NUM_ENTRIES> values;
 
-  ASSERT_TRUE(ResolveAttrs(&theme, 0 /*def_style_attr*/, 0 /*def_style_res*/,
+  ASSERT_TRUE(ResolveAttrs(theme.get(), 0u /*def_style_attr*/, 0u /*def_style_res*/,
                            nullptr /*src_values*/, 0 /*src_values_length*/, attrs.data(),
                            attrs.size(), values.data(), nullptr /*out_indices*/));
 
@@ -126,8 +125,8 @@
                                  R::attr::attr_four, R::attr::attr_empty}};
   std::array<uint32_t, attrs.size() * STYLE_NUM_ENTRIES> values;
 
-  ASSERT_TRUE(RetrieveAttributes(&table_, &xml_parser_, attrs.data(), attrs.size(), values.data(),
-                                 nullptr /*out_indices*/));
+  ASSERT_TRUE(RetrieveAttributes(&assetmanager_, &xml_parser_, attrs.data(), attrs.size(),
+                                 values.data(), nullptr /*out_indices*/));
 
   uint32_t* values_cursor = values.data();
   EXPECT_EQ(Res_value::TYPE_NULL, values_cursor[STYLE_TYPE]);
@@ -171,15 +170,15 @@
 }
 
 TEST_F(AttributeResolutionXmlTest, ThemeAndXmlParser) {
-  ResTable::Theme theme(table_);
-  ASSERT_EQ(NO_ERROR, theme.applyStyle(R::style::StyleTwo));
+  std::unique_ptr<Theme> theme = assetmanager_.NewTheme();
+  ASSERT_TRUE(theme->ApplyStyle(R::style::StyleTwo));
 
   std::array<uint32_t, 6> attrs{{R::attr::attr_one, R::attr::attr_two, R::attr::attr_three,
                                  R::attr::attr_four, R::attr::attr_five, R::attr::attr_empty}};
   std::array<uint32_t, attrs.size() * STYLE_NUM_ENTRIES> values;
   std::array<uint32_t, attrs.size() + 1> indices;
 
-  ApplyStyle(&theme, &xml_parser_, 0 /*def_style_attr*/, 0 /*def_style_res*/, attrs.data(),
+  ApplyStyle(theme.get(), &xml_parser_, 0u /*def_style_attr*/, 0u /*def_style_res*/, attrs.data(),
              attrs.size(), values.data(), indices.data());
 
   const uint32_t public_flag = ResTable_typeSpec::SPEC_PUBLIC;
diff --git a/libs/androidfw/tests/BenchmarkHelpers.cpp b/libs/androidfw/tests/BenchmarkHelpers.cpp
index 7149bee..faddfe5 100644
--- a/libs/androidfw/tests/BenchmarkHelpers.cpp
+++ b/libs/androidfw/tests/BenchmarkHelpers.cpp
@@ -33,19 +33,21 @@
     }
   }
 
+  // Make sure to force creation of the ResTable first, or else the configuration doesn't get set.
+  const ResTable& table = assetmanager.getResources(true);
   if (config != nullptr) {
     assetmanager.setConfiguration(*config);
   }
 
-  const ResTable& table = assetmanager.getResources(true);
-
   Res_value value;
   ResTable_config selected_config;
   uint32_t flags;
+  uint32_t last_ref = 0u;
 
   while (state.KeepRunning()) {
-    table.getResource(resid, &value, false /*may_be_bag*/, 0u /*density*/, &flags,
-                      &selected_config);
+    ssize_t block = table.getResource(resid, &value, false /*may_be_bag*/, 0u /*density*/, &flags,
+                                      &selected_config);
+    table.resolveReference(&value, block, &last_ref, &flags, &selected_config);
   }
 }
 
@@ -72,10 +74,12 @@
   Res_value value;
   ResTable_config selected_config;
   uint32_t flags;
+  uint32_t last_id = 0u;
 
   while (state.KeepRunning()) {
-    assetmanager.GetResource(resid, false /* may_be_bag */, 0u /* density_override */, &value,
-                             &selected_config, &flags);
+    ApkAssetsCookie cookie = assetmanager.GetResource(
+        resid, false /* may_be_bag */, 0u /* density_override */, &value, &selected_config, &flags);
+    assetmanager.ResolveReference(cookie, &value, &selected_config, &flags, &last_id);
   }
 }
 
diff --git a/libs/androidfw/tests/LoadedArsc_test.cpp b/libs/androidfw/tests/LoadedArsc_test.cpp
index 37ddafb..bedebd6 100644
--- a/libs/androidfw/tests/LoadedArsc_test.cpp
+++ b/libs/androidfw/tests/LoadedArsc_test.cpp
@@ -16,6 +16,8 @@
 
 #include "androidfw/LoadedArsc.h"
 
+#include "androidfw/ResourceUtils.h"
+
 #include "TestHelpers.h"
 #include "data/basic/R.h"
 #include "data/libclient/R.h"
@@ -27,6 +29,13 @@
 namespace libclient = com::android::libclient;
 namespace sparse = com::android::sparse;
 
+using ::testing::Eq;
+using ::testing::Ge;
+using ::testing::IsNull;
+using ::testing::NotNull;
+using ::testing::SizeIs;
+using ::testing::StrEq;
+
 namespace android {
 
 TEST(LoadedArscTest, LoadSinglePackageArsc) {
@@ -35,39 +44,24 @@
                                       &contents));
 
   std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
-  const std::vector<std::unique_ptr<const LoadedPackage>>& packages = loaded_arsc->GetPackages();
-  ASSERT_EQ(1u, packages.size());
-  EXPECT_EQ(std::string("com.android.app"), packages[0]->GetPackageName());
-  EXPECT_EQ(0x7f, packages[0]->GetPackageId());
+  const LoadedPackage* package =
+      loaded_arsc->GetPackageById(get_package_id(app::R::string::string_one));
+  ASSERT_THAT(package, NotNull());
+  EXPECT_THAT(package->GetPackageName(), StrEq("com.android.app"));
+  EXPECT_THAT(package->GetPackageId(), Eq(0x7f));
 
-  ResTable_config config;
-  memset(&config, 0, sizeof(config));
-  config.sdkVersion = 24;
+  const uint8_t type_index = get_type_id(app::R::string::string_one) - 1;
+  const uint16_t entry_index = get_entry_id(app::R::string::string_one);
 
-  FindEntryResult entry;
+  const TypeSpec* type_spec = package->GetTypeSpecByTypeIndex(type_index);
+  ASSERT_THAT(type_spec, NotNull());
+  ASSERT_THAT(type_spec->type_count, Ge(1u));
 
-  ASSERT_TRUE(loaded_arsc->FindEntry(app::R::string::string_one, config, &entry));
-  ASSERT_NE(nullptr, entry.entry);
-}
-
-TEST(LoadedArscTest, FindDefaultEntry) {
-  std::string contents;
-  ASSERT_TRUE(
-      ReadFileFromZipToString(GetTestDataPath() + "/basic/basic.apk", "resources.arsc", &contents));
-
-  std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
-
-  ResTable_config desired_config;
-  memset(&desired_config, 0, sizeof(desired_config));
-  desired_config.language[0] = 'd';
-  desired_config.language[1] = 'e';
-
-  FindEntryResult entry;
-  ASSERT_TRUE(loaded_arsc->FindEntry(basic::R::string::test1, desired_config, &entry));
-  ASSERT_NE(nullptr, entry.entry);
+  const ResTable_type* type = type_spec->types[0];
+  ASSERT_THAT(type, NotNull());
+  ASSERT_THAT(LoadedPackage::GetEntry(type, entry_index), NotNull());
 }
 
 TEST(LoadedArscTest, LoadSparseEntryApp) {
@@ -76,15 +70,22 @@
                                       &contents));
 
   std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
-  ResTable_config config;
-  memset(&config, 0, sizeof(config));
-  config.sdkVersion = 26;
+  const LoadedPackage* package =
+      loaded_arsc->GetPackageById(get_package_id(sparse::R::integer::foo_9));
+  ASSERT_THAT(package, NotNull());
 
-  FindEntryResult entry;
-  ASSERT_TRUE(loaded_arsc->FindEntry(sparse::R::integer::foo_9, config, &entry));
-  ASSERT_NE(nullptr, entry.entry);
+  const uint8_t type_index = get_type_id(sparse::R::integer::foo_9) - 1;
+  const uint16_t entry_index = get_entry_id(sparse::R::integer::foo_9);
+
+  const TypeSpec* type_spec = package->GetTypeSpecByTypeIndex(type_index);
+  ASSERT_THAT(type_spec, NotNull());
+  ASSERT_THAT(type_spec->type_count, Ge(1u));
+
+  const ResTable_type* type = type_spec->types[0];
+  ASSERT_THAT(type, NotNull());
+  ASSERT_THAT(LoadedPackage::GetEntry(type, entry_index), NotNull());
 }
 
 TEST(LoadedArscTest, LoadSharedLibrary) {
@@ -93,14 +94,13 @@
                                       &contents));
 
   std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
   const auto& packages = loaded_arsc->GetPackages();
-  ASSERT_EQ(1u, packages.size());
-
+  ASSERT_THAT(packages, SizeIs(1u));
   EXPECT_TRUE(packages[0]->IsDynamic());
-  EXPECT_EQ(std::string("com.android.lib_one"), packages[0]->GetPackageName());
-  EXPECT_EQ(0, packages[0]->GetPackageId());
+  EXPECT_THAT(packages[0]->GetPackageName(), StrEq("com.android.lib_one"));
+  EXPECT_THAT(packages[0]->GetPackageId(), Eq(0));
 
   const auto& dynamic_pkg_map = packages[0]->GetDynamicPackageMap();
 
@@ -114,25 +114,23 @@
                                       "resources.arsc", &contents));
 
   std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
   const auto& packages = loaded_arsc->GetPackages();
-  ASSERT_EQ(1u, packages.size());
-
+  ASSERT_THAT(packages, SizeIs(1u));
   EXPECT_FALSE(packages[0]->IsDynamic());
-  EXPECT_EQ(std::string("com.android.libclient"), packages[0]->GetPackageName());
-  EXPECT_EQ(0x7f, packages[0]->GetPackageId());
+  EXPECT_THAT(packages[0]->GetPackageName(), StrEq("com.android.libclient"));
+  EXPECT_THAT(packages[0]->GetPackageId(), Eq(0x7f));
 
   const auto& dynamic_pkg_map = packages[0]->GetDynamicPackageMap();
 
   // The library has two dependencies.
-  ASSERT_EQ(2u, dynamic_pkg_map.size());
+  ASSERT_THAT(dynamic_pkg_map, SizeIs(2u));
+  EXPECT_THAT(dynamic_pkg_map[0].package_name, StrEq("com.android.lib_one"));
+  EXPECT_THAT(dynamic_pkg_map[0].package_id, Eq(0x02));
 
-  EXPECT_EQ(std::string("com.android.lib_one"), dynamic_pkg_map[0].package_name);
-  EXPECT_EQ(0x02, dynamic_pkg_map[0].package_id);
-
-  EXPECT_EQ(std::string("com.android.lib_two"), dynamic_pkg_map[1].package_name);
-  EXPECT_EQ(0x03, dynamic_pkg_map[1].package_id);
+  EXPECT_THAT(dynamic_pkg_map[1].package_name, StrEq("com.android.lib_two"));
+  EXPECT_THAT(dynamic_pkg_map[1].package_id, Eq(0x03));
 }
 
 TEST(LoadedArscTest, LoadAppAsSharedLibrary) {
@@ -143,13 +141,12 @@
   std::unique_ptr<const LoadedArsc> loaded_arsc =
       LoadedArsc::Load(StringPiece(contents), nullptr /*loaded_idmap*/, false /*system*/,
                        true /*load_as_shared_library*/);
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
   const auto& packages = loaded_arsc->GetPackages();
-  ASSERT_EQ(1u, packages.size());
-
+  ASSERT_THAT(packages, SizeIs(1u));
   EXPECT_TRUE(packages[0]->IsDynamic());
-  EXPECT_EQ(0x7f, packages[0]->GetPackageId());
+  EXPECT_THAT(packages[0]->GetPackageId(), Eq(0x7f));
 }
 
 TEST(LoadedArscTest, LoadFeatureSplit) {
@@ -157,21 +154,27 @@
   ASSERT_TRUE(ReadFileFromZipToString(GetTestDataPath() + "/feature/feature.apk", "resources.arsc",
                                       &contents));
   std::unique_ptr<const LoadedArsc> loaded_arsc = LoadedArsc::Load(StringPiece(contents));
-  ASSERT_NE(nullptr, loaded_arsc);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
-  ResTable_config desired_config;
-  memset(&desired_config, 0, sizeof(desired_config));
+  const LoadedPackage* package =
+      loaded_arsc->GetPackageById(get_package_id(basic::R::string::test3));
+  ASSERT_THAT(package, NotNull());
 
-  FindEntryResult entry;
-  ASSERT_TRUE(loaded_arsc->FindEntry(basic::R::string::test3, desired_config, &entry));
+  uint8_t type_index = get_type_id(basic::R::string::test3) - 1;
+  uint8_t entry_index = get_entry_id(basic::R::string::test3);
+
+  const TypeSpec* type_spec = package->GetTypeSpecByTypeIndex(type_index);
+  ASSERT_THAT(type_spec, NotNull());
+  ASSERT_THAT(type_spec->type_count, Ge(1u));
+  ASSERT_THAT(type_spec->types[0], NotNull());
 
   size_t len;
-  const char16_t* type_name16 = entry.type_string_ref.string16(&len);
-  ASSERT_NE(nullptr, type_name16);
-  ASSERT_NE(0u, len);
+  const char16_t* type_name16 =
+      package->GetTypeStringPool()->stringAt(type_spec->type_spec->id - 1, &len);
+  ASSERT_THAT(type_name16, NotNull());
+  EXPECT_THAT(util::Utf16ToUtf8(StringPiece16(type_name16, len)), StrEq("string"));
 
-  std::string type_name = util::Utf16ToUtf8(StringPiece16(type_name16, len));
-  EXPECT_EQ(std::string("string"), type_name);
+  ASSERT_THAT(LoadedPackage::GetEntry(type_spec->types[0], entry_index), NotNull());
 }
 
 class MockLoadedIdmap : public LoadedIdmap {
@@ -199,23 +202,33 @@
 };
 
 TEST(LoadedArscTest, LoadOverlay) {
-  std::string contents, overlay_contents;
-  ASSERT_TRUE(
-      ReadFileFromZipToString(GetTestDataPath() + "/basic/basic.apk", "resources.arsc", &contents));
+  std::string contents;
   ASSERT_TRUE(ReadFileFromZipToString(GetTestDataPath() + "/overlay/overlay.apk", "resources.arsc",
-                                      &overlay_contents));
+                                      &contents));
 
   MockLoadedIdmap loaded_idmap;
 
   std::unique_ptr<const LoadedArsc> loaded_arsc =
-      LoadedArsc::Load(StringPiece(overlay_contents), &loaded_idmap);
-  ASSERT_NE(nullptr, loaded_arsc);
+      LoadedArsc::Load(StringPiece(contents), &loaded_idmap);
+  ASSERT_THAT(loaded_arsc, NotNull());
 
-  ResTable_config desired_config;
-  memset(&desired_config, 0, sizeof(desired_config));
+  const LoadedPackage* package = loaded_arsc->GetPackageById(0x08u);
+  ASSERT_THAT(package, NotNull());
 
-  FindEntryResult entry;
-  ASSERT_TRUE(loaded_arsc->FindEntry(0x08030001u, desired_config, &entry));
+  const TypeSpec* type_spec = package->GetTypeSpecByTypeIndex(0x03u - 1);
+  ASSERT_THAT(type_spec, NotNull());
+  ASSERT_THAT(type_spec->type_count, Ge(1u));
+  ASSERT_THAT(type_spec->types[0], NotNull());
+
+  // The entry being overlaid doesn't exist at the original entry index.
+  ASSERT_THAT(LoadedPackage::GetEntry(type_spec->types[0], 0x0001u), IsNull());
+
+  // Since this is an overlay, the actual entry ID must be mapped.
+  ASSERT_THAT(type_spec->idmap_entries, NotNull());
+  uint16_t target_entry_id = 0u;
+  ASSERT_TRUE(LoadedIdmap::Lookup(type_spec->idmap_entries, 0x0001u, &target_entry_id));
+  ASSERT_THAT(target_entry_id, Eq(0x0u));
+  ASSERT_THAT(LoadedPackage::GetEntry(type_spec->types[0], 0x0000), NotNull());
 }
 
 // structs with size fields (like Res_value, ResTable_entry) should be
diff --git a/libs/androidfw/tests/TestHelpers.h b/libs/androidfw/tests/TestHelpers.h
index 43a9955..df0c642 100644
--- a/libs/androidfw/tests/TestHelpers.h
+++ b/libs/androidfw/tests/TestHelpers.h
@@ -20,6 +20,7 @@
 #include <string>
 
 #include "androidfw/ResourceTypes.h"
+#include "gmock/gmock.h"
 #include "gtest/gtest.h"
 
 #include "CommonHelpers.h"
diff --git a/libs/androidfw/tests/data/basic/R.h b/libs/androidfw/tests/data/basic/R.h
index 94a2a14..b7e814f 100644
--- a/libs/androidfw/tests/data/basic/R.h
+++ b/libs/androidfw/tests/data/basic/R.h
@@ -34,6 +34,7 @@
   struct layout {
     enum : uint32_t {
       main = 0x7f020000,
+      layoutt = 0x7f020001,
     };
   };
 
@@ -55,6 +56,7 @@
       number2 = 0x7f040001,
       ref1 = 0x7f040002,
       ref2 = 0x7f040003,
+      deep_ref = 0x7f040004,
 
       // From feature
       number3 = 0x80030000,
diff --git a/libs/androidfw/tests/data/basic/basic.apk b/libs/androidfw/tests/data/basic/basic.apk
index 18ef75e..1733b6a 100644
--- a/libs/androidfw/tests/data/basic/basic.apk
+++ b/libs/androidfw/tests/data/basic/basic.apk
Binary files differ
diff --git a/libs/androidfw/tests/data/basic/res/layout/layout.xml b/libs/androidfw/tests/data/basic/res/layout/layout.xml
new file mode 100644
index 0000000..045ede4
--- /dev/null
+++ b/libs/androidfw/tests/data/basic/res/layout/layout.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<Button xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/ok"
+    android:layout_width="0sp"
+    android:layout_height="fill_parent"
+    android:layout_weight="1"
+    android:layout_marginStart="2dip"
+    android:layout_marginEnd="2dip"
+    android:textAppearance="?android:attr/textAppearanceMedium"
+    android:textStyle="bold"
+    android:text="@android:string/ok" />
\ No newline at end of file
diff --git a/libs/androidfw/tests/data/basic/res/values/values.xml b/libs/androidfw/tests/data/basic/res/values/values.xml
index 6c47459..b343562 100644
--- a/libs/androidfw/tests/data/basic/res/values/values.xml
+++ b/libs/androidfw/tests/data/basic/res/values/values.xml
@@ -22,6 +22,7 @@
     <attr name="attr2" format="reference|integer" />
 
     <public type="layout" name="main" id="0x7f020000" />
+    <public type="layout" name="layout" id="0x7f020001" />
 
     <public type="string" name="test1" id="0x7f030000" />
     <string name="test1">test1</string>
@@ -43,6 +44,18 @@
     <public type="integer" name="ref2" id="0x7f040003" />
     <integer name="ref2">12000</integer>
 
+    <public type="integer" name="deep_ref" id="0x7f040004" />
+    <integer name="deep_ref">@integer/deep_ref_1</integer>
+    <integer name="deep_ref_1">@integer/deep_ref_2</integer>
+    <integer name="deep_ref_2">@integer/deep_ref_3</integer>
+    <integer name="deep_ref_3">@integer/deep_ref_4</integer>
+    <integer name="deep_ref_4">@integer/deep_ref_5</integer>
+    <integer name="deep_ref_5">@integer/deep_ref_6</integer>
+    <integer name="deep_ref_6">@integer/deep_ref_7</integer>
+    <integer name="deep_ref_7">@integer/deep_ref_8</integer>
+    <integer name="deep_ref_8">@integer/deep_ref_9</integer>
+    <integer name="deep_ref_9">100</integer>
+
     <public type="style" name="Theme1" id="0x7f050000" />
     <style name="Theme1">
         <item name="com.android.basic:attr1">100</item>
diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index 4243e7e..6cd283a 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -61,6 +61,8 @@
 bool Properties::skpCaptureEnabled = false;
 bool Properties::enableRTAnimations = true;
 
+bool Properties::runningInEmulator = false;
+
 static int property_get_int(const char* key, int defaultValue) {
     char buf[PROPERTY_VALUE_MAX] = {
             '\0',
@@ -135,6 +137,8 @@
     skpCaptureEnabled = property_get_bool("ro.debuggable", false) &&
                         property_get_bool(PROPERTY_CAPTURE_SKP_ENABLED, false);
 
+    runningInEmulator = property_get_bool(PROPERTY_QEMU_KERNEL, false);
+
     return (prevDebugLayersUpdates != debugLayersUpdates) || (prevDebugOverdraw != debugOverdraw) ||
            (prevDebugStencilClip != debugStencilClip);
 }
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index af4b694..179b97b 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -180,6 +180,11 @@
  */
 #define PROPERTY_CAPTURE_SKP_FILENAME "debug.hwui.skp_filename"
 
+/**
+ * Property for whether this is running in the emulator.
+ */
+#define PROPERTY_QEMU_KERNEL "ro.kernel.qemu"
+
 ///////////////////////////////////////////////////////////////////////////////
 // Misc
 ///////////////////////////////////////////////////////////////////////////////
@@ -261,6 +266,8 @@
     // Used for testing only to change the render pipeline.
     static void overrideRenderPipelineType(RenderPipelineType);
 
+    static bool runningInEmulator;
+
 private:
     static ProfileType sProfileType;
     static bool sDisableProfileBars;
diff --git a/libs/hwui/hwui/AnimatedImageDrawable.cpp b/libs/hwui/hwui/AnimatedImageDrawable.cpp
index 36dd06f..e01bf3d 100644
--- a/libs/hwui/hwui/AnimatedImageDrawable.cpp
+++ b/libs/hwui/hwui/AnimatedImageDrawable.cpp
@@ -36,18 +36,27 @@
     mColorFilter = mStagingColorFilter;
 }
 
-void AnimatedImageDrawable::start() {
+bool AnimatedImageDrawable::start() {
     SkAutoExclusive lock(mLock);
+    if (mSkAnimatedImage->isRunning()) {
+        return false;
+    }
 
-    mSnapshot.reset(mSkAnimatedImage->newPictureSnapshot());
+    if (!mSnapshot) {
+        mSnapshot.reset(mSkAnimatedImage->newPictureSnapshot());
+    }
 
+    // While stopped, update() does not decode, but it does advance the time.
+    // This prevents us from skipping ahead when we resume.
+    const double currentTime = SkTime::GetMSecs();
+    mSkAnimatedImage->update(currentTime);
     mSkAnimatedImage->start();
+    return mSkAnimatedImage->isRunning();
 }
 
 void AnimatedImageDrawable::stop() {
     SkAutoExclusive lock(mLock);
     mSkAnimatedImage->stop();
-    mSnapshot.reset(nullptr);
 }
 
 bool AnimatedImageDrawable::isRunning() {
@@ -120,7 +129,7 @@
     }
 
     SkAutoExclusive lock(mLock);
-    if (mSkAnimatedImage->isRunning()) {
+    if (mSnapshot) {
         canvas->drawPicture(mSnapshot, nullptr, lazyPaint.getMaybeNull());
     } else {
         // TODO: we could potentially keep the cached surface around if there is a paint and we know
diff --git a/libs/hwui/hwui/AnimatedImageDrawable.h b/libs/hwui/hwui/AnimatedImageDrawable.h
index 18764af..1ebb585 100644
--- a/libs/hwui/hwui/AnimatedImageDrawable.h
+++ b/libs/hwui/hwui/AnimatedImageDrawable.h
@@ -58,7 +58,8 @@
 
     double drawStaging(SkCanvas* canvas);
 
-    void start();
+    // Returns true if the animation was started; false otherwise (e.g. it was already running)
+    bool start();
     void stop();
     bool isRunning();
 
diff --git a/libs/hwui/hwui/Canvas.cpp b/libs/hwui/hwui/Canvas.cpp
index 75e414e..284fd83 100644
--- a/libs/hwui/hwui/Canvas.cpp
+++ b/libs/hwui/hwui/Canvas.cpp
@@ -158,12 +158,13 @@
 
 void Canvas::drawText(const uint16_t* text, int start, int count, int contextCount, float x,
                       float y, minikin::Bidi bidiFlags, const Paint& origPaint,
-                      const Typeface* typeface) {
+                      const Typeface* typeface, minikin::MeasuredText* mt, int mtOffset) {
     // minikin may modify the original paint
     Paint paint(origPaint);
 
     minikin::Layout layout =
-            MinikinUtils::doLayout(&paint, bidiFlags, typeface, text, start, count, contextCount);
+            MinikinUtils::doLayout(&paint, bidiFlags, typeface, text, start, count, contextCount,
+                                   mt, mtOffset);
 
     x += MinikinUtils::xOffsetForTextAlign(&paint, layout);
 
@@ -211,7 +212,8 @@
                             const Typeface* typeface) {
     Paint paintCopy(paint);
     minikin::Layout layout =
-            MinikinUtils::doLayout(&paintCopy, bidiFlags, typeface, text, 0, count, count);
+            MinikinUtils::doLayout(&paintCopy, bidiFlags, typeface, text, 0, count, count, nullptr,
+                                   0);
     hOffset += MinikinUtils::hOffsetForTextAlign(&paintCopy, layout, path);
 
     // Set align to left for drawing, as we don't want individual
diff --git a/libs/hwui/hwui/Canvas.h b/libs/hwui/hwui/Canvas.h
index cae4542..3ddf1c4 100644
--- a/libs/hwui/hwui/Canvas.h
+++ b/libs/hwui/hwui/Canvas.h
@@ -34,6 +34,7 @@
 
 namespace minikin {
 class Layout;
+class MeasuredText;
 enum class Bidi : uint8_t;
 }
 
@@ -260,7 +261,8 @@
      * and delegating the final draw to virtual drawGlyphs method.
      */
     void drawText(const uint16_t* text, int start, int count, int contextCount, float x, float y,
-                  minikin::Bidi bidiFlags, const Paint& origPaint, const Typeface* typeface);
+                  minikin::Bidi bidiFlags, const Paint& origPaint, const Typeface* typeface,
+                  minikin::MeasuredText* mt, int mtOffset);
 
     void drawTextOnPath(const uint16_t* text, int count, minikin::Bidi bidiFlags,
                         const SkPath& path, float hOffset, float vOffset, const Paint& paint,
diff --git a/libs/hwui/hwui/MinikinUtils.cpp b/libs/hwui/hwui/MinikinUtils.cpp
index bad766c..ba877d3 100644
--- a/libs/hwui/hwui/MinikinUtils.cpp
+++ b/libs/hwui/hwui/MinikinUtils.cpp
@@ -20,6 +20,7 @@
 
 #include <log/log.h>
 
+#include <minikin/MeasuredText.h>
 #include "Paint.h"
 #include "SkPathMeasure.h"
 #include "Typeface.h"
@@ -49,11 +50,24 @@
 
 minikin::Layout MinikinUtils::doLayout(const Paint* paint, minikin::Bidi bidiFlags,
                                        const Typeface* typeface, const uint16_t* buf, size_t start,
-                                       size_t count, size_t bufSize) {
+                                       size_t count, size_t bufSize, minikin::MeasuredText* mt,
+                                       int mtOffset) {
     minikin::MinikinPaint minikinPaint = prepareMinikinPaint(paint, typeface);
+    const auto& fc = Typeface::resolveDefault(typeface)->fFontCollection;
     minikin::Layout layout;
-    layout.doLayout(buf, start, count, bufSize, bidiFlags, minikinPaint,
-                    Typeface::resolveDefault(typeface)->fFontCollection);
+
+    if (mt == nullptr) {
+        layout.doLayout(buf, start, count, bufSize, bidiFlags, minikinPaint, fc);
+        return layout;
+    }
+
+    if (mt->buildLayout(minikin::U16StringPiece(buf, bufSize),
+                        minikin::Range(start, start + count),
+                        minikinPaint, fc, bidiFlags, mtOffset, &layout)) {
+        return layout;
+    }
+
+    layout.doLayout(buf, start, count, bufSize, bidiFlags, minikinPaint, fc);
     return layout;
 }
 
@@ -64,7 +78,7 @@
     const Typeface* resolvedTypeface = Typeface::resolveDefault(typeface);
     return minikin::Layout::measureText(buf, start, count, bufSize, bidiFlags, minikinPaint,
                                         resolvedTypeface->fFontCollection, advances,
-                                        nullptr /* extent */, nullptr /* overhangs */);
+                                        nullptr /* extent */);
 }
 
 bool MinikinUtils::hasVariationSelector(const Typeface* typeface, uint32_t codepoint, uint32_t vs) {
diff --git a/libs/hwui/hwui/MinikinUtils.h b/libs/hwui/hwui/MinikinUtils.h
index 7036cbe..124fe4f 100644
--- a/libs/hwui/hwui/MinikinUtils.h
+++ b/libs/hwui/hwui/MinikinUtils.h
@@ -29,6 +29,11 @@
 #include "MinikinSkia.h"
 #include "Paint.h"
 #include "Typeface.h"
+#include <log/log.h>
+
+namespace minikin {
+class MeasuredText;
+}  // namespace minikin
 
 namespace android {
 
@@ -39,7 +44,8 @@
 
     ANDROID_API static minikin::Layout doLayout(const Paint* paint, minikin::Bidi bidiFlags,
                                                 const Typeface* typeface, const uint16_t* buf,
-                                                size_t start, size_t count, size_t bufSize);
+                                                size_t start, size_t count, size_t bufSize,
+                                                minikin::MeasuredText* mt, int mtOffset);
 
     ANDROID_API static float measureText(const Paint* paint, minikin::Bidi bidiFlags,
                                          const Typeface* typeface, const uint16_t* buf,
diff --git a/libs/hwui/pipeline/skia/ShaderCache.cpp b/libs/hwui/pipeline/skia/ShaderCache.cpp
index c7a3014..2fa56f6 100644
--- a/libs/hwui/pipeline/skia/ShaderCache.cpp
+++ b/libs/hwui/pipeline/skia/ShaderCache.cpp
@@ -19,6 +19,7 @@
 #include <log/log.h>
 #include <thread>
 #include "FileBlobCache.h"
+#include "Properties.h"
 #include "utils/TraceUtils.h"
 
 namespace android {
@@ -43,7 +44,11 @@
 void ShaderCache::initShaderDiskCache() {
     ATRACE_NAME("initShaderDiskCache");
     std::lock_guard<std::mutex> lock(mMutex);
-    if (mFilename.length() > 0) {
+
+    // Emulators can switch between different renders either as part of config
+    // or snapshot migration. Also, program binaries may not work well on some
+    // desktop / laptop GPUs. Thus, disable the shader disk cache for emulator builds.
+    if (!Properties::runningInEmulator && mFilename.length() > 0) {
         mBlobCache.reset(new FileBlobCache(maxKeySize, maxValueSize, maxTotalSize, mFilename));
         mInitialized = true;
     }
diff --git a/libs/hwui/tests/common/TestUtils.cpp b/libs/hwui/tests/common/TestUtils.cpp
index 4a0d6ee..51cf772 100644
--- a/libs/hwui/tests/common/TestUtils.cpp
+++ b/libs/hwui/tests/common/TestUtils.cpp
@@ -125,7 +125,7 @@
     SkPaint glyphPaint(paint);
     glyphPaint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
     canvas->drawText(utf16.get(), 0, strlen(text), strlen(text), x, y, minikin::Bidi::LTR,
-            glyphPaint, nullptr);
+            glyphPaint, nullptr, nullptr /* measured text */, 0 /* measured text offset */);
 }
 
 void TestUtils::drawUtf8ToCanvas(Canvas* canvas, const char* text, const SkPaint& paint,
diff --git a/libs/services/Android.bp b/libs/services/Android.bp
index e5e865f..3d57fbd 100644
--- a/libs/services/Android.bp
+++ b/libs/services/Android.bp
@@ -19,6 +19,7 @@
     srcs: [
         ":IDropBoxManagerService.aidl",
         "src/os/DropBoxManager.cpp",
+        "src/os/StatsDimensionsValue.cpp",
         "src/os/StatsLogEventWrapper.cpp",
     ],
 
diff --git a/libs/services/include/android/os/DropBoxManager.h b/libs/services/include/android/os/DropBoxManager.h
index 2ed203d..75b26c6 100644
--- a/libs/services/include/android/os/DropBoxManager.h
+++ b/libs/services/include/android/os/DropBoxManager.h
@@ -58,6 +58,10 @@
     // are required from the system process.  Returns NULL if the file can't be opened.
     Status addFile(const String16& tag, const string& filename, int flags);
 
+    // Create a new Entry from an already opened file. Takes ownership of the
+    // file descriptor.
+    Status addFile(const String16& tag, int fd, int flags);
+
     class Entry : public virtual RefBase, public Parcelable {
     public:
         Entry();
diff --git a/libs/services/include/android/os/StatsDimensionsValue.h b/libs/services/include/android/os/StatsDimensionsValue.h
new file mode 100644
index 0000000..cc0b056
--- /dev/null
+++ b/libs/services/include/android/os/StatsDimensionsValue.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef STATS_DIMENSIONS_VALUE_H
+#define STATS_DIMENSIONS_VALUE_H
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <binder/Status.h>
+#include <utils/String16.h>
+#include <vector>
+
+namespace android {
+namespace os {
+
+// Represents a parcelable object. Used to send data from statsd to StatsCompanionService.java.
+class StatsDimensionsValue : public android::Parcelable {
+public:
+    StatsDimensionsValue();
+
+    StatsDimensionsValue(int32_t field, String16 value);
+    StatsDimensionsValue(int32_t field, int32_t value);
+    StatsDimensionsValue(int32_t field, int64_t value);
+    StatsDimensionsValue(int32_t field, bool value);
+    StatsDimensionsValue(int32_t field, float value);
+    StatsDimensionsValue(int32_t field, std::vector<StatsDimensionsValue> value);
+
+    virtual ~StatsDimensionsValue();
+
+    virtual android::status_t writeToParcel(android::Parcel* out) const override;
+    virtual android::status_t readFromParcel(const android::Parcel* in) override;
+
+private:
+    // Keep constants in sync with android/os/StatsDimensionsValue.java
+    // and stats_log.proto's DimensionValue.
+    static const int kStrValueType = 2;
+    static const int kIntValueType = 3;
+    static const int kLongValueType = 4;
+    static const int kBoolValueType = 5;
+    static const int kFloatValueType = 6;
+    static const int kTupleValueType = 7;
+
+    int32_t mField;
+    int32_t mValueType;
+
+    // This isn't very clever, but it isn't used for long-term storage, so it'll do.
+    String16 mStrValue;
+    int32_t mIntValue;
+    int64_t mLongValue;
+    bool mBoolValue;
+    float mFloatValue;
+    std::vector<StatsDimensionsValue> mTupleValue;
+};
+
+}  // namespace os
+}  // namespace android
+
+#endif // STATS_DIMENSIONS_VALUE_H
diff --git a/libs/services/src/os/DropBoxManager.cpp b/libs/services/src/os/DropBoxManager.cpp
index 1c760e8..f5685d9 100644
--- a/libs/services/src/os/DropBoxManager.cpp
+++ b/libs/services/src/os/DropBoxManager.cpp
@@ -202,7 +202,12 @@
         ALOGW("DropboxManager: %s", message.c_str());
         return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE, message.c_str());
     }
+    return addFile(tag, fd, flags);
+}
 
+Status
+DropBoxManager::addFile(const String16& tag, int fd, int flags)
+{
     Entry entry(tag, flags, fd);
     return add(entry);
 }
diff --git a/libs/services/src/os/StatsDimensionsValue.cpp b/libs/services/src/os/StatsDimensionsValue.cpp
new file mode 100644
index 0000000..0052e0b
--- /dev/null
+++ b/libs/services/src/os/StatsDimensionsValue.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StatsDimensionsValue"
+
+#include "android/os/StatsDimensionsValue.h"
+
+#include <cutils/log.h>
+
+using android::Parcel;
+using android::Parcelable;
+using android::status_t;
+using std::vector;
+
+namespace android {
+namespace os {
+
+StatsDimensionsValue::StatsDimensionsValue() {};
+
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, String16 value) :
+    mField(field),
+    mValueType(kStrValueType),
+    mStrValue(value) {
+}
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, int32_t value) :
+    mField(field),
+    mValueType(kIntValueType),
+    mIntValue(value) {
+}
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, int64_t value) :
+    mField(field),
+    mValueType(kLongValueType),
+    mLongValue(value) {
+}
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, bool value) :
+    mField(field),
+    mValueType(kBoolValueType),
+    mBoolValue(value) {
+}
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, float value) :
+    mField(field),
+    mValueType(kFloatValueType),
+    mFloatValue(value) {
+}
+StatsDimensionsValue::StatsDimensionsValue(int32_t field, vector<StatsDimensionsValue> value) :
+    mField(field),
+    mValueType(kTupleValueType),
+    mTupleValue(value) {
+}
+
+StatsDimensionsValue::~StatsDimensionsValue() {}
+
+status_t
+StatsDimensionsValue::writeToParcel(Parcel* out) const {
+    status_t err ;
+
+    err = out->writeInt32(mField);
+    if (err != NO_ERROR) {
+        return err;
+    }
+    err = out->writeInt32(mValueType);
+    if (err != NO_ERROR) {
+        return err;
+    }
+    switch (mValueType) {
+        case kStrValueType:
+            err = out->writeString16(mStrValue);
+            break;
+        case kIntValueType:
+            err = out->writeInt32(mIntValue);
+            break;
+        case kLongValueType:
+            err = out->writeInt64(mLongValue);
+            break;
+        case kBoolValueType:
+            err = out->writeBool(mBoolValue);
+            break;
+        case kFloatValueType:
+            err = out->writeFloat(mFloatValue);
+            break;
+        case kTupleValueType:
+            {
+                int sz = mTupleValue.size();
+                err = out->writeInt32(sz);
+                if (err != NO_ERROR) {
+                    return err;
+                }
+                for (int i = 0; i < sz; ++i) {
+                    err = mTupleValue[i].writeToParcel(out);
+                    if (err != NO_ERROR) {
+                        return err;
+                    }
+                }
+            }
+            break;
+        default:
+            err = UNKNOWN_ERROR;
+            break;
+    }
+    return err;
+}
+
+status_t
+StatsDimensionsValue::readFromParcel(const Parcel* in)
+{
+    // Implement me if desired. We don't currently use this.
+    ALOGE("Cannot do c++ StatsDimensionsValue.readFromParcel(); it is not implemented.");
+    (void)in; // To prevent compile error of unused parameter 'in'
+    return UNKNOWN_ERROR;
+}
+
+}  // namespace os
+}  // namespace android
diff --git a/media/java/android/media/AudioPort.java b/media/java/android/media/AudioPort.java
index 19bf51d..047db19 100644
--- a/media/java/android/media/AudioPort.java
+++ b/media/java/android/media/AudioPort.java
@@ -20,7 +20,7 @@
  * An audio port is a node of the audio framework or hardware that can be connected to or
  * disconnect from another audio node to create a specific audio routing configuration.
  * Examples of audio ports are an output device (speaker) or an output mix (see AudioMixPort).
- * All attributes that are relevant for applications to make routing selection are decribed
+ * All attributes that are relevant for applications to make routing selection are described
  * in an AudioPort,  in particular:
  * - possible channel mask configurations.
  * - audio format (PCM 16bit, PCM 24bit...)
@@ -173,6 +173,7 @@
     /**
      * Build a specific configuration of this audio port for use by methods
      * like AudioManager.connectAudioPatch().
+     * @param samplingRate
      * @param channelMask The desired channel mask. AudioFormat.CHANNEL_OUT_DEFAULT if no change
      * from active configuration requested.
      * @param format The desired audio format. AudioFormat.ENCODING_DEFAULT if no change
diff --git a/media/java/android/media/AudioRecord.java b/media/java/android/media/AudioRecord.java
index 27784e9..eb6e830 100644
--- a/media/java/android/media/AudioRecord.java
+++ b/media/java/android/media/AudioRecord.java
@@ -32,6 +32,7 @@
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
+import android.os.PersistableBundle;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.util.ArrayMap;
@@ -1314,6 +1315,23 @@
         return native_read_in_direct_buffer(audioBuffer, sizeInBytes, readMode == READ_BLOCKING);
     }
 
+    /**
+     *  Return Metrics data about the current AudioTrack instance.
+     *
+     * @return a {@link PersistableBundle} containing the set of attributes and values
+     * available for the media being handled by this instance of AudioRecord
+     * The attributes are descibed in {@link MetricsConstants}.
+     *
+     * Additional vendor-specific fields may also be present in
+     * the return value.
+     */
+    public PersistableBundle getMetrics() {
+        PersistableBundle bundle = native_getMetrics();
+        return bundle;
+    }
+
+    private native PersistableBundle native_getMetrics();
+
     //--------------------------------------------------------------------------
     // Initialization / configuration
     //--------------------
@@ -1739,4 +1757,46 @@
     private static void loge(String msg) {
         Log.e(TAG, msg);
     }
+
+    public static final class MetricsConstants
+    {
+        private MetricsConstants() {}
+
+        /**
+         * Key to extract the output format being recorded
+         * from the {@link AudioRecord#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String ENCODING = "android.media.audiorecord.encoding";
+
+        /**
+         * Key to extract the Source Type for this track
+         * from the {@link AudioRecord#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String SOURCE = "android.media.audiorecord.source";
+
+        /**
+         * Key to extract the estimated latency through the recording pipeline
+         * from the {@link AudioRecord#getMetrics} return value.
+         * This is in units of milliseconds.
+         * The value is an integer.
+         */
+        public static final String LATENCY = "android.media.audiorecord.latency";
+
+        /**
+         * Key to extract the sink sample rate for this record track in Hz
+         * from the {@link AudioRecord#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String SAMPLERATE = "android.media.audiorecord.samplerate";
+
+        /**
+         * Key to extract the number of channels being recorded in this record track
+         * from the {@link AudioRecord#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String CHANNELS = "android.media.audiorecord.channels";
+
+    }
 }
diff --git a/media/java/android/media/AudioSystem.java b/media/java/android/media/AudioSystem.java
index b4316ba..dcd37da 100644
--- a/media/java/android/media/AudioSystem.java
+++ b/media/java/android/media/AudioSystem.java
@@ -793,7 +793,7 @@
     public static native int getPrimaryOutputFrameCount();
     public static native int getOutputLatency(int stream);
 
-    public static native int setLowRamDevice(boolean isLowRamDevice);
+    public static native int setLowRamDevice(boolean isLowRamDevice, long totalMemory);
     public static native int checkAudioFlinger();
 
     public static native int listAudioPorts(ArrayList<AudioPort> ports, int[] generation);
diff --git a/media/java/android/media/AudioTrack.java b/media/java/android/media/AudioTrack.java
index 5928d03..4e9ce8e 100644
--- a/media/java/android/media/AudioTrack.java
+++ b/media/java/android/media/AudioTrack.java
@@ -36,6 +36,7 @@
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
+import android.os.PersistableBundle;
 import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -1718,6 +1719,23 @@
          return ret;
      }
 
+    /**
+     *  Return Metrics data about the current AudioTrack instance.
+     *
+     * @return a {@link PersistableBundle} containing the set of attributes and values
+     * available for the media being handled by this instance of AudioTrack
+     * The attributes are descibed in {@link MetricsConstants}.
+     *
+     * Additional vendor-specific fields may also be present in
+     * the return value.
+     */
+    public PersistableBundle getMetrics() {
+        PersistableBundle bundle = native_getMetrics();
+        return bundle;
+    }
+
+    private native PersistableBundle native_getMetrics();
+
     //--------------------------------------------------------------------------
     // Initialization / configuration
     //--------------------
@@ -3239,4 +3257,46 @@
     private static void loge(String msg) {
         Log.e(TAG, msg);
     }
+
+    public final static class MetricsConstants
+    {
+        private MetricsConstants() {}
+
+        /**
+         * Key to extract the Stream Type for this track
+         * from the {@link AudioTrack#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String STREAMTYPE = "android.media.audiotrack.streamtype";
+
+        /**
+         * Key to extract the Content Type for this track
+         * from the {@link AudioTrack#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String CONTENTTYPE = "android.media.audiotrack.type";
+
+        /**
+         * Key to extract the Content Type for this track
+         * from the {@link AudioTrack#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String USAGE = "android.media.audiotrack.usage";
+
+        /**
+         * Key to extract the sample rate for this track in Hz
+         * from the {@link AudioTrack#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String SAMPLERATE = "android.media.audiorecord.samplerate";
+
+        /**
+         * Key to extract the channel mask information for this track
+         * from the {@link AudioTrack#getMetrics} return value.
+         *
+         * The value is a Long integer.
+         */
+        public static final String CHANNELMASK = "android.media.audiorecord.channelmask";
+
+    }
 }
diff --git a/media/java/android/media/DataSourceDesc.java b/media/java/android/media/DataSourceDesc.java
new file mode 100644
index 0000000..73fad7a
--- /dev/null
+++ b/media/java/android/media/DataSourceDesc.java
@@ -0,0 +1,465 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.net.Uri;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import com.android.internal.util.Preconditions;
+
+import java.io.FileDescriptor;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.net.HttpCookie;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Structure for data source descriptor.
+ *
+ * Used by {@link MediaPlayer2#setDataSource(DataSourceDesc)}
+ * to set data source for playback.
+ *
+ * <p>Users should use {@link Builder} to change {@link DataSourceDesc}.
+ *
+ */
+public final class DataSourceDesc {
+    /* No data source has been set yet */
+    public static final int TYPE_NONE     = 0;
+    /* data source is type of MediaDataSource */
+    public static final int TYPE_CALLBACK = 1;
+    /* data source is type of FileDescriptor */
+    public static final int TYPE_FD       = 2;
+    /* data source is type of Uri */
+    public static final int TYPE_URI      = 3;
+
+    // intentionally less than long.MAX_VALUE
+    public static final long LONG_MAX = 0x7ffffffffffffffL;
+
+    private int mType = TYPE_NONE;
+
+    private Media2DataSource mMedia2DataSource;
+
+    private FileDescriptor mFD;
+    private long mFDOffset = 0;
+    private long mFDLength = LONG_MAX;
+
+    private Uri mUri;
+    private Map<String, String> mUriHeader;
+    private List<HttpCookie> mUriCookies;
+    private Context mUriContext;
+
+    private long mId = 0;
+    private long mStartPositionMs = 0;
+    private long mEndPositionMs = LONG_MAX;
+
+    private DataSourceDesc() {
+    }
+
+    /**
+     * Return the Id of data source.
+     * @return the Id of data source
+     */
+    public long getId() {
+        return mId;
+    }
+
+    /**
+     * Return the position in milliseconds at which the playback will start.
+     * @return the position in milliseconds at which the playback will start
+     */
+    public long getStartPosition() {
+        return mStartPositionMs;
+    }
+
+    /**
+     * Return the position in milliseconds at which the playback will end.
+     * -1 means ending at the end of source content.
+     * @return the position in milliseconds at which the playback will end
+     */
+    public long getEndPosition() {
+        return mEndPositionMs;
+    }
+
+    /**
+     * Return the type of data source.
+     * @return the type of data source
+     */
+    public int getType() {
+        return mType;
+    }
+
+    /**
+     * Return the Media2DataSource of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_CALLBACK}.
+     * @return the Media2DataSource of this data source
+     */
+    public Media2DataSource getMedia2DataSource() {
+        return mMedia2DataSource;
+    }
+
+    /**
+     * Return the FileDescriptor of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_FD}.
+     * @return the FileDescriptor of this data source
+     */
+    public FileDescriptor getFileDescriptor() {
+        return mFD;
+    }
+
+    /**
+     * Return the offset associated with the FileDescriptor of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_FD} and it has
+     * been set by the {@link Builder}.
+     * @return the offset associated with the FileDescriptor of this data source
+     */
+    public long getFileDescriptorOffset() {
+        return mFDOffset;
+    }
+
+    /**
+     * Return the content length associated with the FileDescriptor of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_FD}.
+     * -1 means same as the length of source content.
+     * @return the content length associated with the FileDescriptor of this data source
+     */
+    public long getFileDescriptorLength() {
+        return mFDLength;
+    }
+
+    /**
+     * Return the Uri of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_URI}.
+     * @return the Uri of this data source
+     */
+    public Uri getUri() {
+        return mUri;
+    }
+
+    /**
+     * Return the Uri headers of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_URI}.
+     * @return the Uri headers of this data source
+     */
+    public Map<String, String> getUriHeaders() {
+        if (mUriHeader == null) {
+            return null;
+        }
+        return new HashMap<String, String>(mUriHeader);
+    }
+
+    /**
+     * Return the Uri cookies of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_URI}.
+     * @return the Uri cookies of this data source
+     */
+    public List<HttpCookie> getUriCookies() {
+        if (mUriCookies == null) {
+            return null;
+        }
+        return new ArrayList<HttpCookie>(mUriCookies);
+    }
+
+    /**
+     * Return the Context used for resolving the Uri of this data source.
+     * It's meaningful only when {@code getType} returns {@link #TYPE_URI}.
+     * @return the Context used for resolving the Uri of this data source
+     */
+    public Context getUriContext() {
+        return mUriContext;
+    }
+
+    /**
+     * Builder class for {@link DataSourceDesc} objects.
+     * <p> Here is an example where <code>Builder</code> is used to define the
+     * {@link DataSourceDesc} to be used by a {@link MediaPlayer2} instance:
+     *
+     * <pre class="prettyprint">
+     * DataSourceDesc oldDSD = mediaplayer2.getDataSourceDesc();
+     * DataSourceDesc newDSD = new DataSourceDesc.Builder(oldDSD)
+     *         .setStartPosition(1000)
+     *         .setEndPosition(15000)
+     *         .build();
+     * mediaplayer2.setDataSourceDesc(newDSD);
+     * </pre>
+     */
+    public static class Builder {
+        private int mType = TYPE_NONE;
+
+        private Media2DataSource mMedia2DataSource;
+
+        private FileDescriptor mFD;
+        private long mFDOffset = 0;
+        private long mFDLength = LONG_MAX;
+
+        private Uri mUri;
+        private Map<String, String> mUriHeader;
+        private List<HttpCookie> mUriCookies;
+        private Context mUriContext;
+
+        private long mId = 0;
+        private long mStartPositionMs = 0;
+        private long mEndPositionMs = LONG_MAX;
+
+        /**
+         * Constructs a new Builder with the defaults.
+         */
+        public Builder() {
+        }
+
+        /**
+         * Constructs a new Builder from a given {@link DataSourceDesc} instance
+         * @param dsd the {@link DataSourceDesc} object whose data will be reused
+         * in the new Builder.
+         */
+        public Builder(DataSourceDesc dsd) {
+            mType = dsd.mType;
+            mMedia2DataSource = dsd.mMedia2DataSource;
+            mFD = dsd.mFD;
+            mFDOffset = dsd.mFDOffset;
+            mFDLength = dsd.mFDLength;
+            mUri = dsd.mUri;
+            mUriHeader = dsd.mUriHeader;
+            mUriCookies = dsd.mUriCookies;
+            mUriContext = dsd.mUriContext;
+
+            mId = dsd.mId;
+            mStartPositionMs = dsd.mStartPositionMs;
+            mEndPositionMs = dsd.mEndPositionMs;
+        }
+
+        /**
+         * Combines all of the fields that have been set and return a new
+         * {@link DataSourceDesc} object. <code>IllegalStateException</code> will be
+         * thrown if there is conflict between fields.
+         *
+         * @return a new {@link DataSourceDesc} object
+         */
+        public DataSourceDesc build() {
+            if (mType != TYPE_CALLBACK
+                && mType != TYPE_FD
+                && mType != TYPE_URI) {
+                throw new IllegalStateException("Illegal type: " + mType);
+            }
+            if (mStartPositionMs > mEndPositionMs) {
+                throw new IllegalStateException("Illegal start/end position: "
+                    + mStartPositionMs + " : " + mEndPositionMs);
+            }
+
+            DataSourceDesc dsd = new DataSourceDesc();
+            dsd.mType = mType;
+            dsd.mMedia2DataSource = mMedia2DataSource;
+            dsd.mFD = mFD;
+            dsd.mFDOffset = mFDOffset;
+            dsd.mFDLength = mFDLength;
+            dsd.mUri = mUri;
+            dsd.mUriHeader = mUriHeader;
+            dsd.mUriCookies = mUriCookies;
+            dsd.mUriContext = mUriContext;
+
+            dsd.mId = mId;
+            dsd.mStartPositionMs = mStartPositionMs;
+            dsd.mEndPositionMs = mEndPositionMs;
+
+            return dsd;
+        }
+
+        /**
+         * Sets the Id of this data source.
+         *
+         * @param id the Id of this data source
+         * @return the same Builder instance.
+         */
+        public Builder setId(long id) {
+            mId = id;
+            return this;
+        }
+
+        /**
+         * Sets the start position in milliseconds at which the playback will start.
+         * Any negative number is treated as 0.
+         *
+         * @param position the start position in milliseconds at which the playback will start
+         * @return the same Builder instance.
+         *
+         */
+        public Builder setStartPosition(long position) {
+            if (position < 0) {
+                position = 0;
+            }
+            mStartPositionMs = position;
+            return this;
+        }
+
+        /**
+         * Sets the end position in milliseconds at which the playback will end.
+         * Any negative number is treated as maximum length of the data source.
+         *
+         * @param position the end position in milliseconds at which the playback will end
+         * @return the same Builder instance.
+         */
+        public Builder setEndPosition(long position) {
+            if (position < 0) {
+                position = LONG_MAX;
+            }
+            mEndPositionMs = position;
+            return this;
+        }
+
+        /**
+         * Sets the data source (Media2DataSource) to use.
+         *
+         * @param m2ds the Media2DataSource for the media you want to play
+         * @return the same Builder instance.
+         * @throws NullPointerException if m2ds is null.
+         */
+        public Builder setDataSource(Media2DataSource m2ds) {
+            Preconditions.checkNotNull(m2ds);
+            resetDataSource();
+            mType = TYPE_CALLBACK;
+            mMedia2DataSource = m2ds;
+            return this;
+        }
+
+        /**
+         * Sets the data source (FileDescriptor) to use. The FileDescriptor must be
+         * seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility
+         * to close the file descriptor after the source has been used.
+         *
+         * @param fd the FileDescriptor for the file you want to play
+         * @return the same Builder instance.
+         * @throws NullPointerException if fd is null.
+         */
+        public Builder setDataSource(FileDescriptor fd) {
+            Preconditions.checkNotNull(fd);
+            resetDataSource();
+            mType = TYPE_FD;
+            mFD = fd;
+            return this;
+        }
+
+        /**
+         * Sets the data source (FileDescriptor) to use. The FileDescriptor must be
+         * seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility
+         * to close the file descriptor after the source has been used.
+         *
+         * Any negative number for offset is treated as 0.
+         * Any negative number for length is treated as maximum length of the data source.
+         *
+         * @param fd the FileDescriptor for the file you want to play
+         * @param offset the offset into the file where the data to be played starts, in bytes
+         * @param length the length in bytes of the data to be played
+         * @return the same Builder instance.
+         * @throws NullPointerException if fd is null.
+         */
+        public Builder setDataSource(FileDescriptor fd, long offset, long length) {
+            Preconditions.checkNotNull(fd);
+            if (offset < 0) {
+                offset = 0;
+            }
+            if (length < 0) {
+                length = LONG_MAX;
+            }
+            resetDataSource();
+            mType = TYPE_FD;
+            mFD = fd;
+            mFDOffset = offset;
+            mFDLength = length;
+            return this;
+        }
+
+        /**
+         * Sets the data source as a content Uri.
+         *
+         * @param context the Context to use when resolving the Uri
+         * @param uri the Content URI of the data you want to play
+         * @return the same Builder instance.
+         * @throws NullPointerException if context or uri is null.
+         */
+        public Builder setDataSource(@NonNull Context context, @NonNull Uri uri) {
+            Preconditions.checkNotNull(context, "context cannot be null");
+            Preconditions.checkNotNull(uri, "uri cannot be null");
+            resetDataSource();
+            mType = TYPE_URI;
+            mUri = uri;
+            mUriContext = context;
+            return this;
+        }
+
+        /**
+         * Sets the data source as a content Uri.
+         *
+         * To provide cookies for the subsequent HTTP requests, you can install your own default
+         * cookie handler and use other variants of setDataSource APIs instead. Alternatively, you
+         * can use this API to pass the cookies as a list of HttpCookie. If the app has not
+         * installed a CookieHandler already, {@link MediaPlayer2} will create a CookieManager
+         * and populates its CookieStore with the provided cookies when this data source is passed
+         * to {@link MediaPlayer2}. If the app has installed its own handler already, the handler
+         * is required to be of CookieManager type such that {@link MediaPlayer2} can update the
+         * manager’s CookieStore.
+         *
+         *  <p><strong>Note</strong> that the cross domain redirection is allowed by default,
+         * but that can be changed with key/value pairs through the headers parameter with
+         * "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value to
+         * disallow or allow cross domain redirection.
+         *
+         * @param context the Context to use when resolving the Uri
+         * @param uri the Content URI of the data you want to play
+         * @param headers the headers to be sent together with the request for the data
+         *                The headers must not include cookies. Instead, use the cookies param.
+         * @param cookies the cookies to be sent together with the request
+         * @return the same Builder instance.
+         * @throws NullPointerException if context or uri is null.
+         */
+        public Builder setDataSource(@NonNull Context context, @NonNull Uri uri,
+                @Nullable Map<String, String> headers, @Nullable List<HttpCookie> cookies) {
+            Preconditions.checkNotNull(uri);
+            resetDataSource();
+            mType = TYPE_URI;
+            mUri = uri;
+            if (headers != null) {
+                mUriHeader = new HashMap<String, String>(headers);
+            }
+            if (cookies != null) {
+                mUriCookies = new ArrayList<HttpCookie>(cookies);
+            }
+            mUriContext = context;
+            return this;
+        }
+
+        private void resetDataSource() {
+            mType = TYPE_NONE;
+            mMedia2DataSource = null;
+            mFD = null;
+            mFDOffset = 0;
+            mFDLength = LONG_MAX;
+            mUri = null;
+            mUriHeader = null;
+            mUriCookies = null;
+            mUriContext = null;
+        }
+    }
+}
diff --git a/media/java/android/media/IMediaSession2.aidl b/media/java/android/media/IMediaSession2.aidl
index 078b611..b10a40b 100644
--- a/media/java/android/media/IMediaSession2.aidl
+++ b/media/java/android/media/IMediaSession2.aidl
@@ -16,7 +16,6 @@
 
 package android.media;
 
-import android.media.session.PlaybackState;
 import android.media.IMediaSession2Callback;
 import android.os.Bundle;
 
@@ -44,7 +43,7 @@
     //////////////////////////////////////////////////////////////////////////////////////////////
     oneway void sendCommand(IMediaSession2Callback caller, in Bundle command, in Bundle args);
 
-    PlaybackState getPlaybackState();
+    Bundle getPlaybackState();
 
     //////////////////////////////////////////////////////////////////////////////////////////////
     // Get library service specific
diff --git a/media/java/android/media/IMediaSession2Callback.aidl b/media/java/android/media/IMediaSession2Callback.aidl
index 1664e01..eb02fa7 100644
--- a/media/java/android/media/IMediaSession2Callback.aidl
+++ b/media/java/android/media/IMediaSession2Callback.aidl
@@ -29,7 +29,7 @@
  * @hide
  */
 oneway interface IMediaSession2Callback {
-    void onPlaybackStateChanged(in PlaybackState state);
+    void onPlaybackStateChanged(in Bundle state);
 
     /**
      * Called only when the controller is created with service's token.
diff --git a/media/java/android/media/Media2DataSource.java b/media/java/android/media/Media2DataSource.java
new file mode 100644
index 0000000..8ee4a70
--- /dev/null
+++ b/media/java/android/media/Media2DataSource.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package android.media;
+
+import java.io.Closeable;
+import java.io.IOException;
+
+/**
+ * For supplying media data to the framework. Implement this if your app has
+ * special requirements for the way media data is obtained.
+ *
+ * <p class="note">Methods of this interface may be called on multiple different
+ * threads. There will be a thread synchronization point between each call to ensure that
+ * modifications to the state of your Media2DataSource are visible to future calls. This means
+ * you don't need to do your own synchronization unless you're modifying the
+ * Media2DataSource from another thread while it's being used by the framework.</p>
+ *
+ */
+public abstract class Media2DataSource implements Closeable {
+    /**
+     * Called to request data from the given position.
+     *
+     * Implementations should should write up to {@code size} bytes into
+     * {@code buffer}, and return the number of bytes written.
+     *
+     * Return {@code 0} if size is zero (thus no bytes are read).
+     *
+     * Return {@code -1} to indicate that end of stream is reached.
+     *
+     * @param position the position in the data source to read from.
+     * @param buffer the buffer to read the data into.
+     * @param offset the offset within buffer to read the data into.
+     * @param size the number of bytes to read.
+     * @throws IOException on fatal errors.
+     * @return the number of bytes read, or -1 if there was an error.
+     */
+    public abstract int readAt(long position, byte[] buffer, int offset, int size)
+            throws IOException;
+
+    /**
+     * Called to get the size of the data source.
+     *
+     * @throws IOException on fatal errors
+     * @return the size of data source in bytes, or -1 if the size is unknown.
+     */
+    public abstract long getSize() throws IOException;
+}
diff --git a/media/java/android/media/Media2HTTPConnection.java b/media/java/android/media/Media2HTTPConnection.java
new file mode 100644
index 0000000..0d7825a
--- /dev/null
+++ b/media/java/android/media/Media2HTTPConnection.java
@@ -0,0 +1,385 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.net.NetworkUtils;
+import android.os.StrictMode;
+import android.util.Log;
+
+import java.io.BufferedInputStream;
+import java.io.InputStream;
+import java.io.IOException;
+import java.net.CookieHandler;
+import java.net.CookieManager;
+import java.net.Proxy;
+import java.net.URL;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.NoRouteToHostException;
+import java.net.ProtocolException;
+import java.net.UnknownServiceException;
+import java.util.HashMap;
+import java.util.Map;
+
+import static android.media.MediaPlayer2.MEDIA_ERROR_UNSUPPORTED;
+
+/** @hide */
+public class Media2HTTPConnection {
+    private static final String TAG = "Media2HTTPConnection";
+    private static final boolean VERBOSE = false;
+
+    // connection timeout - 30 sec
+    private static final int CONNECT_TIMEOUT_MS = 30 * 1000;
+
+    private long mCurrentOffset = -1;
+    private URL mURL = null;
+    private Map<String, String> mHeaders = null;
+    private HttpURLConnection mConnection = null;
+    private long mTotalSize = -1;
+    private InputStream mInputStream = null;
+
+    private boolean mAllowCrossDomainRedirect = true;
+    private boolean mAllowCrossProtocolRedirect = true;
+
+    // from com.squareup.okhttp.internal.http
+    private final static int HTTP_TEMP_REDIRECT = 307;
+    private final static int MAX_REDIRECTS = 20;
+
+    public Media2HTTPConnection() {
+        CookieHandler cookieHandler = CookieHandler.getDefault();
+        if (cookieHandler == null) {
+            Log.w(TAG, "Media2HTTPConnection: Unexpected. No CookieHandler found.");
+        }
+    }
+
+    public boolean connect(String uri, String headers) {
+        if (VERBOSE) {
+            Log.d(TAG, "connect: uri=" + uri + ", headers=" + headers);
+        }
+
+        try {
+            disconnect();
+            mAllowCrossDomainRedirect = true;
+            mURL = new URL(uri);
+            mHeaders = convertHeaderStringToMap(headers);
+        } catch (MalformedURLException e) {
+            return false;
+        }
+
+        return true;
+    }
+
+    private boolean parseBoolean(String val) {
+        try {
+            return Long.parseLong(val) != 0;
+        } catch (NumberFormatException e) {
+            return "true".equalsIgnoreCase(val) ||
+                "yes".equalsIgnoreCase(val);
+        }
+    }
+
+    /* returns true iff header is internal */
+    private boolean filterOutInternalHeaders(String key, String val) {
+        if ("android-allow-cross-domain-redirect".equalsIgnoreCase(key)) {
+            mAllowCrossDomainRedirect = parseBoolean(val);
+            // cross-protocol redirects are also controlled by this flag
+            mAllowCrossProtocolRedirect = mAllowCrossDomainRedirect;
+        } else {
+            return false;
+        }
+        return true;
+    }
+
+    private Map<String, String> convertHeaderStringToMap(String headers) {
+        HashMap<String, String> map = new HashMap<String, String>();
+
+        String[] pairs = headers.split("\r\n");
+        for (String pair : pairs) {
+            int colonPos = pair.indexOf(":");
+            if (colonPos >= 0) {
+                String key = pair.substring(0, colonPos);
+                String val = pair.substring(colonPos + 1);
+
+                if (!filterOutInternalHeaders(key, val)) {
+                    map.put(key, val);
+                }
+            }
+        }
+
+        return map;
+    }
+
+    public void disconnect() {
+        teardownConnection();
+        mHeaders = null;
+        mURL = null;
+    }
+
+    private void teardownConnection() {
+        if (mConnection != null) {
+            if (mInputStream != null) {
+                try {
+                    mInputStream.close();
+                } catch (IOException e) {
+                }
+                mInputStream = null;
+            }
+
+            mConnection.disconnect();
+            mConnection = null;
+
+            mCurrentOffset = -1;
+        }
+    }
+
+    private static final boolean isLocalHost(URL url) {
+        if (url == null) {
+            return false;
+        }
+
+        String host = url.getHost();
+
+        if (host == null) {
+            return false;
+        }
+
+        try {
+            if (host.equalsIgnoreCase("localhost")) {
+                return true;
+            }
+            if (NetworkUtils.numericToInetAddress(host).isLoopbackAddress()) {
+                return true;
+            }
+        } catch (IllegalArgumentException iex) {
+        }
+        return false;
+    }
+
+    private void seekTo(long offset) throws IOException {
+        teardownConnection();
+
+        try {
+            int response;
+            int redirectCount = 0;
+
+            URL url = mURL;
+
+            // do not use any proxy for localhost (127.0.0.1)
+            boolean noProxy = isLocalHost(url);
+
+            while (true) {
+                if (noProxy) {
+                    mConnection = (HttpURLConnection)url.openConnection(Proxy.NO_PROXY);
+                } else {
+                    mConnection = (HttpURLConnection)url.openConnection();
+                }
+                mConnection.setConnectTimeout(CONNECT_TIMEOUT_MS);
+
+                // handle redirects ourselves if we do not allow cross-domain redirect
+                mConnection.setInstanceFollowRedirects(mAllowCrossDomainRedirect);
+
+                if (mHeaders != null) {
+                    for (Map.Entry<String, String> entry : mHeaders.entrySet()) {
+                        mConnection.setRequestProperty(
+                                entry.getKey(), entry.getValue());
+                    }
+                }
+
+                if (offset > 0) {
+                    mConnection.setRequestProperty(
+                            "Range", "bytes=" + offset + "-");
+                }
+
+                response = mConnection.getResponseCode();
+                if (response != HttpURLConnection.HTTP_MULT_CHOICE &&
+                        response != HttpURLConnection.HTTP_MOVED_PERM &&
+                        response != HttpURLConnection.HTTP_MOVED_TEMP &&
+                        response != HttpURLConnection.HTTP_SEE_OTHER &&
+                        response != HTTP_TEMP_REDIRECT) {
+                    // not a redirect, or redirect handled by HttpURLConnection
+                    break;
+                }
+
+                if (++redirectCount > MAX_REDIRECTS) {
+                    throw new NoRouteToHostException("Too many redirects: " + redirectCount);
+                }
+
+                String method = mConnection.getRequestMethod();
+                if (response == HTTP_TEMP_REDIRECT &&
+                        !method.equals("GET") && !method.equals("HEAD")) {
+                    // "If the 307 status code is received in response to a
+                    // request other than GET or HEAD, the user agent MUST NOT
+                    // automatically redirect the request"
+                    throw new NoRouteToHostException("Invalid redirect");
+                }
+                String location = mConnection.getHeaderField("Location");
+                if (location == null) {
+                    throw new NoRouteToHostException("Invalid redirect");
+                }
+                url = new URL(mURL /* TRICKY: don't use url! */, location);
+                if (!url.getProtocol().equals("https") &&
+                        !url.getProtocol().equals("http")) {
+                    throw new NoRouteToHostException("Unsupported protocol redirect");
+                }
+                boolean sameProtocol = mURL.getProtocol().equals(url.getProtocol());
+                if (!mAllowCrossProtocolRedirect && !sameProtocol) {
+                    throw new NoRouteToHostException("Cross-protocol redirects are disallowed");
+                }
+                boolean sameHost = mURL.getHost().equals(url.getHost());
+                if (!mAllowCrossDomainRedirect && !sameHost) {
+                    throw new NoRouteToHostException("Cross-domain redirects are disallowed");
+                }
+
+                if (response != HTTP_TEMP_REDIRECT) {
+                    // update effective URL, unless it is a Temporary Redirect
+                    mURL = url;
+                }
+            }
+
+            if (mAllowCrossDomainRedirect) {
+                // remember the current, potentially redirected URL if redirects
+                // were handled by HttpURLConnection
+                mURL = mConnection.getURL();
+            }
+
+            if (response == HttpURLConnection.HTTP_PARTIAL) {
+                // Partial content, we cannot just use getContentLength
+                // because what we want is not just the length of the range
+                // returned but the size of the full content if available.
+
+                String contentRange =
+                    mConnection.getHeaderField("Content-Range");
+
+                mTotalSize = -1;
+                if (contentRange != null) {
+                    // format is "bytes xxx-yyy/zzz
+                    // where "zzz" is the total number of bytes of the
+                    // content or '*' if unknown.
+
+                    int lastSlashPos = contentRange.lastIndexOf('/');
+                    if (lastSlashPos >= 0) {
+                        String total =
+                            contentRange.substring(lastSlashPos + 1);
+
+                        try {
+                            mTotalSize = Long.parseLong(total);
+                        } catch (NumberFormatException e) {
+                        }
+                    }
+                }
+            } else if (response != HttpURLConnection.HTTP_OK) {
+                throw new IOException();
+            } else {
+                mTotalSize = mConnection.getContentLength();
+            }
+
+            if (offset > 0 && response != HttpURLConnection.HTTP_PARTIAL) {
+                // Some servers simply ignore "Range" requests and serve
+                // data from the start of the content.
+                throw new ProtocolException();
+            }
+
+            mInputStream =
+                new BufferedInputStream(mConnection.getInputStream());
+
+            mCurrentOffset = offset;
+        } catch (IOException e) {
+            mTotalSize = -1;
+            teardownConnection();
+            mCurrentOffset = -1;
+
+            throw e;
+        }
+    }
+
+    public int readAt(long offset, byte[] data, int size) {
+        StrictMode.ThreadPolicy policy =
+            new StrictMode.ThreadPolicy.Builder().permitAll().build();
+
+        StrictMode.setThreadPolicy(policy);
+
+        try {
+            if (offset != mCurrentOffset) {
+                seekTo(offset);
+            }
+
+            int n = mInputStream.read(data, 0, size);
+
+            if (n == -1) {
+                // InputStream signals EOS using a -1 result, our semantics
+                // are to return a 0-length read.
+                n = 0;
+            }
+
+            mCurrentOffset += n;
+
+            if (VERBOSE) {
+                Log.d(TAG, "readAt " + offset + " / " + size + " => " + n);
+            }
+
+            return n;
+        } catch (ProtocolException e) {
+            Log.w(TAG, "readAt " + offset + " / " + size + " => " + e);
+            return MEDIA_ERROR_UNSUPPORTED;
+        } catch (NoRouteToHostException e) {
+            Log.w(TAG, "readAt " + offset + " / " + size + " => " + e);
+            return MEDIA_ERROR_UNSUPPORTED;
+        } catch (UnknownServiceException e) {
+            Log.w(TAG, "readAt " + offset + " / " + size + " => " + e);
+            return MEDIA_ERROR_UNSUPPORTED;
+        } catch (IOException e) {
+            if (VERBOSE) {
+                Log.d(TAG, "readAt " + offset + " / " + size + " => -1");
+            }
+            return -1;
+        } catch (Exception e) {
+            if (VERBOSE) {
+                Log.d(TAG, "unknown exception " + e);
+                Log.d(TAG, "readAt " + offset + " / " + size + " => -1");
+            }
+            return -1;
+        }
+    }
+
+    public long getSize() {
+        if (mConnection == null) {
+            try {
+                seekTo(0);
+            } catch (IOException e) {
+                return -1;
+            }
+        }
+
+        return mTotalSize;
+    }
+
+    public String getMIMEType() {
+        if (mConnection == null) {
+            try {
+                seekTo(0);
+            } catch (IOException e) {
+                return "application/octet-stream";
+            }
+        }
+
+        return mConnection.getContentType();
+    }
+
+    public String getUri() {
+        return mURL.toString();
+    }
+}
diff --git a/media/java/android/media/Media2HTTPService.java b/media/java/android/media/Media2HTTPService.java
new file mode 100644
index 0000000..957acec
--- /dev/null
+++ b/media/java/android/media/Media2HTTPService.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.util.Log;
+
+import java.net.CookieHandler;
+import java.net.CookieManager;
+import java.net.CookieStore;
+import java.net.HttpCookie;
+import java.util.List;
+
+/** @hide */
+public class Media2HTTPService {
+    private static final String TAG = "Media2HTTPService";
+    private List<HttpCookie> mCookies;
+    private Boolean mCookieStoreInitialized = new Boolean(false);
+
+    public Media2HTTPService(List<HttpCookie> cookies) {
+        mCookies = cookies;
+        Log.v(TAG, "Media2HTTPService(" + this + "): Cookies: " + cookies);
+    }
+
+    public Media2HTTPConnection makeHTTPConnection() {
+
+        synchronized (mCookieStoreInitialized) {
+            // Only need to do it once for all connections
+            if ( !mCookieStoreInitialized )  {
+                CookieHandler cookieHandler = CookieHandler.getDefault();
+                if (cookieHandler == null) {
+                    cookieHandler = new CookieManager();
+                    CookieHandler.setDefault(cookieHandler);
+                    Log.v(TAG, "makeHTTPConnection: CookieManager created: " + cookieHandler);
+                } else {
+                    Log.v(TAG, "makeHTTPConnection: CookieHandler (" + cookieHandler + ") exists.");
+                }
+
+                // Applying the bootstrapping cookies
+                if ( mCookies != null ) {
+                    if ( cookieHandler instanceof CookieManager ) {
+                        CookieManager cookieManager = (CookieManager)cookieHandler;
+                        CookieStore store = cookieManager.getCookieStore();
+                        for ( HttpCookie cookie : mCookies ) {
+                            try {
+                                store.add(null, cookie);
+                            } catch ( Exception e ) {
+                                Log.v(TAG, "makeHTTPConnection: CookieStore.add" + e);
+                            }
+                            //for extended debugging when needed
+                            //Log.v(TAG, "MediaHTTPConnection adding Cookie[" + cookie.getName() +
+                            //        "]: " + cookie);
+                        }
+                    } else {
+                        Log.w(TAG, "makeHTTPConnection: The installed CookieHandler is not a "
+                                + "CookieManager. Can’t add the provided cookies to the cookie "
+                                + "store.");
+                    }
+                }   // mCookies
+
+                mCookieStoreInitialized = true;
+
+                Log.v(TAG, "makeHTTPConnection(" + this + "): cookieHandler: " + cookieHandler +
+                        " Cookies: " + mCookies);
+            }   // mCookieStoreInitialized
+        }   // synchronized
+
+        return new Media2HTTPConnection();
+    }
+
+    /* package private */ static Media2HTTPService createHTTPService(String path) {
+        return createHTTPService(path, null);
+    }
+
+    // when cookies are provided
+    static Media2HTTPService createHTTPService(String path, List<HttpCookie> cookies) {
+        if (path.startsWith("http://") || path.startsWith("https://")) {
+            return (new Media2HTTPService(cookies));
+        } else if (path.startsWith("widevine://")) {
+            Log.d(TAG, "Widevine classic is no longer supported");
+        }
+
+        return null;
+    }
+}
diff --git a/media/java/android/media/MediaBrowser2.java b/media/java/android/media/MediaBrowser2.java
index 33377bc..5ad4313 100644
--- a/media/java/android/media/MediaBrowser2.java
+++ b/media/java/android/media/MediaBrowser2.java
@@ -16,8 +16,10 @@
 
 package android.media;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.SystemApi;
 import android.content.Context;
 import android.media.update.ApiLoader;
 import android.media.update.MediaBrowser2Provider;
@@ -99,17 +101,17 @@
                 @Nullable Bundle options, @Nullable List<MediaItem2> result) { }
     }
 
-    public MediaBrowser2(Context context, SessionToken token, BrowserCallback callback,
-            Executor executor) {
-        super(context, token, callback, executor);
+    public MediaBrowser2(@NonNull Context context, @NonNull SessionToken2 token,
+            @NonNull @CallbackExecutor Executor executor, @NonNull BrowserCallback callback) {
+        super(context, token, executor, callback);
         mProvider = (MediaBrowser2Provider) getProvider();
     }
 
     @Override
-    MediaBrowser2Provider createProvider(Context context, SessionToken token,
-            ControllerCallback callback, Executor executor) {
+    MediaBrowser2Provider createProvider(Context context, SessionToken2 token,
+            Executor executor, ControllerCallback callback) {
         return ApiLoader.getProvider(context)
-                .createMediaBrowser2(this, context, token, (BrowserCallback) callback, executor);
+                .createMediaBrowser2(context, this, token, executor, (BrowserCallback) callback);
     }
 
     public void getBrowserRoot(Bundle rootHints) {
diff --git a/media/java/android/media/MediaCodecInfo.java b/media/java/android/media/MediaCodecInfo.java
index f41e33f..44d9099 100644
--- a/media/java/android/media/MediaCodecInfo.java
+++ b/media/java/android/media/MediaCodecInfo.java
@@ -2639,7 +2639,8 @@
         /**
          * Returns the supported range of quality values.
          *
-         * @hide
+         * Quality is implementation-specific. As a general rule, a higher quality
+         * setting results in a better image quality and a lower compression ratio.
          */
         public Range<Integer> getQualityRange() {
             return mQualityRange;
@@ -2751,7 +2752,7 @@
             }
             if (info.containsKey("feature-bitrate-modes")) {
                 for (String mode: info.getString("feature-bitrate-modes").split(",")) {
-                    mBitControl |= parseBitrateMode(mode);
+                    mBitControl |= (1 << parseBitrateMode(mode));
                 }
             }
 
diff --git a/media/java/android/media/MediaController2.java b/media/java/android/media/MediaController2.java
index dca1027..6064ec4 100644
--- a/media/java/android/media/MediaController2.java
+++ b/media/java/android/media/MediaController2.java
@@ -16,15 +16,17 @@
 
 package android.media;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.SystemApi;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.media.MediaSession2.Command;
 import android.media.MediaSession2.CommandButton;
 import android.media.MediaSession2.CommandGroup;
 import android.media.MediaSession2.ControllerInfo;
-import android.media.MediaSession2.PlaylistParam;
+import android.media.MediaSession2.PlaylistParams;
 import android.media.session.MediaSessionManager;
 import android.media.update.ApiLoader;
 import android.media.update.MediaController2Provider;
@@ -54,7 +56,7 @@
  * <p>
  * A controller can be created through token from {@link MediaSessionManager} if you hold the
  * signature|privileged permission "android.permission.MEDIA_CONTENT_CONTROL" permission or are
- * an enabled notification listener or by getting a {@link SessionToken} directly the
+ * an enabled notification listener or by getting a {@link SessionToken2} directly the
  * the session owner.
  * <p>
  * MediaController2 objects are thread-safe.
@@ -63,8 +65,6 @@
  * @see MediaSessionService2
  * @hide
  */
-// TODO(jaewan): Unhide
-// TODO(jaewan): Revisit comments. Currently MediaBrowser case is missing.
 public class MediaController2 implements AutoCloseable {
     /**
      * Interface for listening to change in activeness of the {@link MediaSession2}.  It's
@@ -130,7 +130,7 @@
          * @param param
          */
         public void onPlaylistChanged(
-                @NonNull List<MediaItem2> list, @NonNull PlaylistParam param) { }
+                @NonNull List<MediaItem2> list, @NonNull PlaylistParams param) { }
 
         /**
          * Called when the playback state is changed.
@@ -234,17 +234,17 @@
     private final MediaController2Provider mProvider;
 
     /**
-     * Create a {@link MediaController2} from the {@link SessionToken}. This connects to the session
+     * Create a {@link MediaController2} from the {@link SessionToken2}. This connects to the session
      * and may wake up the service if it's not available.
      *
      * @param context Context
      * @param token token to connect to
-     * @param callback controller callback to receive changes in
      * @param executor executor to run callbacks on.
+     * @param callback controller callback to receive changes in
      */
     // TODO(jaewan): Put @CallbackExecutor to the constructor.
-    public MediaController2(@NonNull Context context, @NonNull SessionToken token,
-            @NonNull ControllerCallback callback, @NonNull Executor executor) {
+    public MediaController2(@NonNull Context context, @NonNull SessionToken2 token,
+            @NonNull @CallbackExecutor Executor executor, @NonNull ControllerCallback callback) {
         super();
 
         // This also connects to the token.
@@ -252,14 +252,14 @@
         // session whose session binder is only valid while it's active.
         // prevent a controller from reusable after the
         // session is released and recreated.
-        mProvider = createProvider(context, token, callback, executor);
+        mProvider = createProvider(context, token, executor, callback);
     }
 
     MediaController2Provider createProvider(@NonNull Context context,
-            @NonNull SessionToken token, @NonNull ControllerCallback callback,
-            @NonNull Executor executor) {
+            @NonNull SessionToken2 token, @NonNull Executor executor,
+            @NonNull ControllerCallback callback) {
         return ApiLoader.getProvider(context)
-                .createMediaController2(this, context, token, callback, executor);
+                .createMediaController2(context, this, token, executor, callback);
     }
 
     /**
@@ -271,9 +271,7 @@
         mProvider.close_impl();
     }
 
-    /**
-     * @hide
-     */
+    @SystemApi
     public MediaController2Provider getProvider() {
         return mProvider;
     }
@@ -281,7 +279,8 @@
     /**
      * @return token
      */
-    public @NonNull SessionToken getSessionToken() {
+    public @NonNull
+    SessionToken2 getSessionToken() {
         return mProvider.getSessionToken_impl();
     }
 
@@ -577,7 +576,8 @@
         return mProvider.getPlaylist_impl();
     }
 
-    public @Nullable PlaylistParam getPlaylistParam() {
+    public @Nullable
+    PlaylistParams getPlaylistParam() {
         return mProvider.getPlaylistParam_impl();
     }
 
diff --git a/media/java/android/media/MediaDrm.java b/media/java/android/media/MediaDrm.java
index 063186d..a0edefa 100644
--- a/media/java/android/media/MediaDrm.java
+++ b/media/java/android/media/MediaDrm.java
@@ -1253,8 +1253,6 @@
      *
      * Additional vendor-specific fields may also be present in
      * the return value.
-     *
-     * @hide - not part of the public API at this time
      */
     public PersistableBundle getMetrics() {
         PersistableBundle bundle = getMetricsNative();
@@ -1571,8 +1569,6 @@
     /**
      * Definitions for the metrics that are reported via the
      * {@link #getMetrics} call.
-     *
-     * @hide - not part of the public API at this time
      */
     public final static class MetricsConstants
     {
@@ -1582,16 +1578,350 @@
          * Key to extract the number of successful {@link #openSession} calls
          * from the {@link PersistableBundle} returned by a
          * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
          */
         public static final String OPEN_SESSION_OK_COUNT
-            = "/drm/mediadrm/open_session/ok/count";
+            = "drm.mediadrm.open_session.ok.count";
 
         /**
          * Key to extract the number of failed {@link #openSession} calls
          * from the {@link PersistableBundle} returned by a
          * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
          */
         public static final String OPEN_SESSION_ERROR_COUNT
-            = "/drm/mediadrm/open_session/error/count";
+            = "drm.mediadrm.open_session.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #openSession} calls. The key is used to lookup the list
+         * in the {@link PersistableBundle} returned by a {@link #getMetrics}
+         * call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String OPEN_SESSION_ERROR_LIST
+            = "drm.mediadrm.open_session.error.list";
+
+        /**
+         * Key to extract the number of successful {@link #closeSession} calls
+         * from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String CLOSE_SESSION_OK_COUNT
+            = "drm.mediadrm.close_session.ok.count";
+
+        /**
+         * Key to extract the number of failed {@link #closeSession} calls
+         * from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String CLOSE_SESSION_ERROR_COUNT
+            = "drm.mediadrm.close_session.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #closeSession} calls. The key is used to lookup the list
+         * in the {@link PersistableBundle} returned by a {@link #getMetrics}
+         * call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String CLOSE_SESSION_ERROR_LIST
+            = "drm.mediadrm.close_session.error.list";
+
+        /**
+         * Key to extract the start times of sessions. Times are
+         * represented as milliseconds since epoch (1970-01-01T00:00:00Z).
+         * The start times are returned from the {@link PersistableBundle}
+         * from a {@link #getMetrics} call.
+         * The start times are returned as another {@link PersistableBundle}
+         * containing the session ids as keys and the start times as long
+         * values. Use {@link android.os.BaseBundle#keySet} to get the list of
+         * session ids, and then {@link android.os.BaseBundle#getLong} to get
+         * the start time for each session.
+         */
+        public static final String SESSION_START_TIMES_MS
+            = "drm.mediadrm.session_start_times_ms";
+
+        /**
+         * Key to extract the end times of sessions. Times are
+         * represented as milliseconds since epoch (1970-01-01T00:00:00Z).
+         * The end times are returned from the {@link PersistableBundle}
+         * from a {@link #getMetrics} call.
+         * The end times are returned as another {@link PersistableBundle}
+         * containing the session ids as keys and the end times as long
+         * values. Use {@link android.os.BaseBundle#keySet} to get the list of
+         * session ids, and then {@link android.os.BaseBundle#getLong} to get
+         * the end time for each session.
+         */
+        public static final String SESSION_END_TIMES_MS
+            = "drm.mediadrm.session_end_times_ms";
+
+        /**
+         * Key to extract the number of successful {@link #getKeyRequest} calls
+         * from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_KEY_REQUEST_OK_COUNT
+            = "drm.mediadrm.get_key_request.ok.count";
+
+        /**
+         * Key to extract the number of failed {@link #getKeyRequest}
+         * calls from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_KEY_REQUEST_ERROR_COUNT
+            = "drm.mediadrm.get_key_request.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #getKeyRequest} calls. The key is used to lookup the list
+         * in the {@link PersistableBundle} returned by a {@link #getMetrics}
+         * call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String GET_KEY_REQUEST_ERROR_LIST
+            = "drm.mediadrm.get_key_request.error.list";
+
+        /**
+         * Key to extract the average time in microseconds of calls to
+         * {@link #getKeyRequest}. The value is retrieved from the
+         * {@link PersistableBundle} returned from {@link #getMetrics}.
+         * The time is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_KEY_REQUEST_OK_TIME_MICROS
+            = "drm.mediadrm.get_key_request.ok.average_time_micros";
+
+        /**
+         * Key to extract the number of successful {@link #provideKeyResponse}
+         * calls from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String PROVIDE_KEY_RESPONSE_OK_COUNT
+            = "drm.mediadrm.provide_key_response.ok.count";
+
+        /**
+         * Key to extract the number of failed {@link #provideKeyResponse}
+         * calls from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String PROVIDE_KEY_RESPONSE_ERROR_COUNT
+            = "drm.mediadrm.provide_key_response.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #provideKeyResponse} calls. The key is used to lookup the
+         * list in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String PROVIDE_KEY_RESPONSE_ERROR_LIST
+            = "drm.mediadrm.provide_key_response.error.list";
+
+        /**
+         * Key to extract the average time in microseconds of calls to
+         * {@link #provideKeyResponse}. The valus is retrieved from the
+         * {@link PersistableBundle} returned from {@link #getMetrics}.
+         * The time is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String PROVIDE_KEY_RESPONSE_OK_TIME_MICROS
+            = "drm.mediadrm.provide_key_response.ok.average_time_micros";
+
+        /**
+         * Key to extract the number of successful {@link #getProvisionRequest}
+         * calls from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_PROVISION_REQUEST_OK_COUNT
+            = "drm.mediadrm.get_provision_request.ok.count";
+
+        /**
+         * Key to extract the number of failed {@link #getProvisionRequest}
+         * calls from the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_PROVISION_REQUEST_ERROR_COUNT
+            = "drm.mediadrm.get_provision_request.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #getProvisionRequest} calls. The key is used to lookup the
+         * list in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String GET_PROVISION_REQUEST_ERROR_LIST
+            = "drm.mediadrm.get_provision_request.error.list";
+
+        /**
+         * Key to extract the number of successful
+         * {@link #provideProvisionResponse} calls from the
+         * {@link PersistableBundle} returned by a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String PROVIDE_PROVISION_RESPONSE_OK_COUNT
+            = "drm.mediadrm.provide_provision_response.ok.count";
+
+        /**
+         * Key to extract the number of failed
+         * {@link #provideProvisionResponse} calls from the
+         * {@link PersistableBundle} returned by a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String PROVIDE_PROVISION_RESPONSE_ERROR_COUNT
+            = "drm.mediadrm.provide_provision_response.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #provideProvisionResponse} calls. The key is used to lookup
+         * the list in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String PROVIDE_PROVISION_RESPONSE_ERROR_LIST
+            = "drm.mediadrm.provide_provision_response.error.list";
+
+        /**
+         * Key to extract the number of successful
+         * {@link #getPropertyByteArray} calls were made with the
+         * {@link #PROPERTY_DEVICE_UNIQUE_ID} value. The key is used to lookup
+         * the value in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_DEVICE_UNIQUE_ID_OK_COUNT
+            = "drm.mediadrm.get_device_unique_id.ok.count";
+
+        /**
+         * Key to extract the number of failed
+         * {@link #getPropertyByteArray} calls were made with the
+         * {@link #PROPERTY_DEVICE_UNIQUE_ID} value. The key is used to lookup
+         * the value in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String GET_DEVICE_UNIQUE_ID_ERROR_COUNT
+            = "drm.mediadrm.get_device_unique_id.error.count";
+
+        /**
+         * Key to extract the list of error codes that were returned from
+         * {@link #getPropertyByteArray} calls with the
+         * {@link #PROPERTY_DEVICE_UNIQUE_ID} value. The key is used to lookup
+         * the list in the {@link PersistableBundle} returned by a
+         * {@link #getMetrics} call.
+         * The list is an array of Long values
+         * ({@link android.os.BaseBundle#getLongArray}).
+         */
+        public static final String GET_DEVICE_UNIQUE_ID_ERROR_LIST
+            = "drm.mediadrm.get_device_unique_id.error.list";
+
+        /**
+         * Key to extraact the count of {@link KeyStatus#STATUS_EXPIRED} events
+         * that occured. The count is extracted from the
+         * {@link PersistableBundle} returned from a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String KEY_STATUS_EXPIRED_COUNT
+            = "drm.mediadrm.key_status.EXPIRED.count";
+
+        /**
+         * Key to extract the count of {@link KeyStatus#STATUS_INTERNAL_ERROR}
+         * events that occured. The count is extracted from the
+         * {@link PersistableBundle} returned from a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String KEY_STATUS_INTERNAL_ERROR_COUNT
+            = "drm.mediadrm.key_status.INTERNAL_ERROR.count";
+
+        /**
+         * Key to extract the count of
+         * {@link KeyStatus#STATUS_OUTPUT_NOT_ALLOWED} events that occured.
+         * The count is extracted from the
+         * {@link PersistableBundle} returned from a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String KEY_STATUS_OUTPUT_NOT_ALLOWED_COUNT
+            = "drm.mediadrm.key_status_change.OUTPUT_NOT_ALLOWED.count";
+
+        /**
+         * Key to extract the count of {@link KeyStatus#STATUS_PENDING}
+         * events that occured. The count is extracted from the
+         * {@link PersistableBundle} returned from a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String KEY_STATUS_PENDING_COUNT
+            = "drm.mediadrm.key_status_change.PENDING.count";
+
+        /**
+         * Key to extract the count of {@link KeyStatus#STATUS_USABLE}
+         * events that occured. The count is extracted from the
+         * {@link PersistableBundle} returned from a {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String KEY_STATUS_USABLE_COUNT
+            = "drm.mediadrm.key_status_change.USABLE.count";
+
+        /**
+         * Key to extract the count of {@link OnEventListener#onEvent}
+         * calls of type PROVISION_REQUIRED occured. The count is
+         * extracted from the {@link PersistableBundle} returned from a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String EVENT_PROVISION_REQUIRED_COUNT
+            = "drm.mediadrm.event.PROVISION_REQUIRED.count";
+
+        /**
+         * Key to extract the count of {@link OnEventListener#onEvent}
+         * calls of type KEY_NEEDED occured. The count is
+         * extracted from the {@link PersistableBundle} returned from a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String EVENT_KEY_NEEDED_COUNT
+            = "drm.mediadrm.event.KEY_NEEDED.count";
+
+        /**
+         * Key to extract the count of {@link OnEventListener#onEvent}
+         * calls of type KEY_EXPIRED occured. The count is
+         * extracted from the {@link PersistableBundle} returned from a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String EVENT_KEY_EXPIRED_COUNT
+            = "drm.mediadrm.event.KEY_EXPIRED.count";
+
+        /**
+         * Key to extract the count of {@link OnEventListener#onEvent}
+         * calls of type VENDOR_DEFINED. The count is
+         * extracted from the {@link PersistableBundle} returned from a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String EVENT_VENDOR_DEFINED_COUNT
+            = "drm.mediadrm.event.VENDOR_DEFINED.count";
+
+        /**
+         * Key to extract the count of {@link OnEventListener#onEvent}
+         * calls of type SESSION_RECLAIMED. The count is
+         * extracted from the {@link PersistableBundle} returned from a
+         * {@link #getMetrics} call.
+         * The count is a Long value ({@link android.os.BaseBundle#getLong}).
+         */
+        public static final String EVENT_SESSION_RECLAIMED_COUNT
+            = "drm.mediadrm.event.SESSION_RECLAIMED.count";
     }
 }
diff --git a/media/java/android/media/MediaExtractor.java b/media/java/android/media/MediaExtractor.java
index 2c1b4b3..174d6a3 100644
--- a/media/java/android/media/MediaExtractor.java
+++ b/media/java/android/media/MediaExtractor.java
@@ -626,6 +626,12 @@
      */
     public native long getSampleTime();
 
+    /**
+     * @return size of the current sample in bytes or -1 if no more
+     * samples are available.
+     */
+    public native long getSampleSize();
+
     // Keep these in sync with their equivalents in NuMediaExtractor.h
     /**
      * The sample is a sync sample (or in {@link MediaCodec}'s terminology
diff --git a/media/java/android/media/MediaFormat.java b/media/java/android/media/MediaFormat.java
index c6496eb..e9128e4 100644
--- a/media/java/android/media/MediaFormat.java
+++ b/media/java/android/media/MediaFormat.java
@@ -601,8 +601,6 @@
      * codec specific, but lower values generally result in more efficient
      * (smaller-sized) encoding.
      *
-     * @hide
-     *
      * @see MediaCodecInfo.EncoderCapabilities#getQualityRange()
      */
     public static final String KEY_QUALITY = "quality";
diff --git a/media/java/android/media/MediaItem2.java b/media/java/android/media/MediaItem2.java
index 96a87d5..6a96faa 100644
--- a/media/java/android/media/MediaItem2.java
+++ b/media/java/android/media/MediaItem2.java
@@ -19,6 +19,7 @@
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.SystemApi;
 import android.os.Bundle;
 import android.text.TextUtils;
 
@@ -32,15 +33,10 @@
  * When it's sent to a controller or browser, it's anonymized and data descriptor wouldn't be sent.
  * <p>
  * This object isn't a thread safe.
- *
  * @hide
  */
-// TODO(jaewan): Unhide and extends from DataSourceDesc.
-//               Note) Feels like an anti-pattern. We should anonymize MediaItem2 to remove *all*
-//                     information in the DataSourceDesc. Why it should extends from this?
-// TODO(jaewan): Move this to updatable
-// Previously MediaBrowser.MediaItem
 public class MediaItem2 {
+    // TODO(jaewan): Keep DataSourceDesc.
     private final int mFlags;
     private MediaMetadata2 mMetadata;
 
diff --git a/media/java/android/media/MediaLibraryService2.java b/media/java/android/media/MediaLibraryService2.java
index b98936e..5dadcb5 100644
--- a/media/java/android/media/MediaLibraryService2.java
+++ b/media/java/android/media/MediaLibraryService2.java
@@ -16,6 +16,7 @@
 
 package android.media;
 
+import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.app.PendingIntent;
@@ -27,9 +28,9 @@
 import android.media.update.MediaSession2Provider;
 import android.media.update.MediaSessionService2Provider;
 import android.os.Bundle;
-import android.service.media.MediaBrowserService.BrowserRoot;
 
 import java.util.List;
+import java.util.concurrent.Executor;
 
 /**
  * Base class for media library services.
@@ -52,7 +53,6 @@
  * declare metadata in the manifest as follows.
  * @hide
  */
-// TODO(jaewan): Unhide
 public abstract class MediaLibraryService2 extends MediaSessionService2 {
     /**
      * This is the interface name that a service implementing a session service should say that it
@@ -67,20 +67,21 @@
         private final MediaLibrarySessionProvider mProvider;
 
         MediaLibrarySession(Context context, MediaPlayerBase player, String id,
-                SessionCallback callback, VolumeProvider volumeProvider,
-                int ratingType, PendingIntent sessionActivity) {
-            super(context, player, id, callback, volumeProvider, ratingType, sessionActivity);
+                VolumeProvider volumeProvider, int ratingType, PendingIntent sessionActivity,
+                Executor callbackExecutor, SessionCallback callback) {
+            super(context, player, id, volumeProvider, ratingType, sessionActivity,
+                    callbackExecutor, callback);
             mProvider = (MediaLibrarySessionProvider) getProvider();
         }
 
         @Override
         MediaSession2Provider createProvider(Context context, MediaPlayerBase player, String id,
-                SessionCallback callback, VolumeProvider volumeProvider, int ratingType,
-                PendingIntent sessionActivity) {
+                VolumeProvider volumeProvider, int ratingType, PendingIntent sessionActivity,
+                Executor callbackExecutor, SessionCallback callback) {
             return ApiLoader.getProvider(context)
-                    .createMediaLibraryService2MediaLibrarySession(this, context, player, id,
-                            (MediaLibrarySessionCallback) callback, volumeProvider, ratingType,
-                            sessionActivity);
+                    .createMediaLibraryService2MediaLibrarySession(context, this, player, id,
+                            volumeProvider, ratingType, sessionActivity,
+                            callbackExecutor, (MediaLibrarySessionCallback) callback);
         }
 
         /**
@@ -206,24 +207,26 @@
             extends BuilderBase<MediaLibrarySessionBuilder, MediaLibrarySessionCallback> {
         public MediaLibrarySessionBuilder(
                 @NonNull Context context, @NonNull MediaPlayerBase player,
+                @NonNull @CallbackExecutor Executor callbackExecutor,
                 @NonNull MediaLibrarySessionCallback callback) {
             super(context, player);
-            setSessionCallback(callback);
+            setSessionCallback(callbackExecutor, callback);
         }
 
         @Override
         public MediaLibrarySessionBuilder setSessionCallback(
+                @NonNull @CallbackExecutor Executor callbackExecutor,
                 @NonNull MediaLibrarySessionCallback callback) {
             if (callback == null) {
                 throw new IllegalArgumentException("MediaLibrarySessionCallback cannot be null");
             }
-            return super.setSessionCallback(callback);
+            return super.setSessionCallback(callbackExecutor, callback);
         }
 
         @Override
-        public MediaLibrarySession build() throws IllegalStateException {
-            return new MediaLibrarySession(mContext, mPlayer, mId, mCallback,
-                    mVolumeProvider, mRatingType, mSessionActivity);
+        public MediaLibrarySession build() {
+            return new MediaLibrarySession(mContext, mPlayer, mId, mVolumeProvider, mRatingType,
+                    mSessionActivity, mCallbackExecutor, mCallback);
         }
     }
 
@@ -272,7 +275,7 @@
          * @see #EXTRA_OFFLINE
          * @see #EXTRA_SUGGESTED
          */
-        public static final String EXTRA_RECENT = "android.service.media.extra.RECENT";
+        public static final String EXTRA_RECENT = "android.media.extra.RECENT";
 
         /**
          * The lookup key for a boolean that indicates whether the browser service should return a
@@ -290,7 +293,7 @@
          * @see #EXTRA_RECENT
          * @see #EXTRA_SUGGESTED
          */
-        public static final String EXTRA_OFFLINE = "android.service.media.extra.OFFLINE";
+        public static final String EXTRA_OFFLINE = "android.media.extra.OFFLINE";
 
         /**
          * The lookup key for a boolean that indicates whether the browser service should return a
@@ -298,8 +301,8 @@
          *
          * <p>When creating a media browser for a given media browser service, this key can be
          * supplied as a root hint for retrieving the media items suggested by the media browser
-         * service. The list of media items passed in {@link android.media.browse.MediaBrowser.SubscriptionCallback#onChildrenLoaded(String, List)}
-         * is considered ordered by relevance, first being the top suggestion.
+         * service. The list of media items is considered ordered by relevance, first being the top
+         * suggestion.
          * If the media browser service can provide such media items, the implementation must return
          * the key in the root hint when
          * {@link MediaLibrarySessionCallback#onGetRoot(ControllerInfo, Bundle)} is called back.
@@ -309,7 +312,7 @@
          * @see #EXTRA_RECENT
          * @see #EXTRA_OFFLINE
          */
-        public static final String EXTRA_SUGGESTED = "android.service.media.extra.SUGGESTED";
+        public static final String EXTRA_SUGGESTED = "android.media.extra.SUGGESTED";
 
         final private String mRootId;
         final private Bundle mExtras;
diff --git a/media/java/android/media/MediaMetadata2.java b/media/java/android/media/MediaMetadata2.java
index 0e24db6..fcdb4f7 100644
--- a/media/java/android/media/MediaMetadata2.java
+++ b/media/java/android/media/MediaMetadata2.java
@@ -34,6 +34,7 @@
 
 /**
  * Contains metadata about an item, such as the title, artist, etc.
+ *
  * @hide
  */
 // TODO(jaewan): Move this to updatable
@@ -218,7 +219,7 @@
     /**
      * A Uri formatted String representing the content. This value is specific to the
      * service providing the content. It may be used with
-     * {@link MediaController2#playFromUri(Uri, Bundle)}
+     * {@link MediaController2#playFromUri(String, Bundle)}
      * to initiate playback when provided by a {@link MediaBrowser2} connected to
      * the same app.
      */
diff --git a/media/java/android/media/MediaPlayer2.java b/media/java/android/media/MediaPlayer2.java
new file mode 100644
index 0000000..d36df84
--- /dev/null
+++ b/media/java/android/media/MediaPlayer2.java
@@ -0,0 +1,2476 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.annotation.CallbackExecutor;
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.Context;
+import android.graphics.SurfaceTexture;
+import android.net.Uri;
+import android.os.Handler;
+import android.os.Parcel;
+import android.os.PersistableBundle;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.media.MediaDrm;
+import android.media.MediaFormat;
+import android.media.MediaPlayer2Impl;
+import android.media.MediaTimeProvider;
+import android.media.PlaybackParams;
+import android.media.SubtitleController;
+import android.media.SubtitleController.Anchor;
+import android.media.SubtitleData;
+import android.media.SubtitleTrack.RenderingWidget;
+import android.media.SyncParams;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.AutoCloseable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.net.InetSocketAddress;
+import java.util.concurrent.Executor;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+
+
+/**
+ * MediaPlayer2 class can be used to control playback
+ * of audio/video files and streams. An example on how to use the methods in
+ * this class can be found in {@link android.widget.VideoView}.
+ *
+ * <p>Topics covered here are:
+ * <ol>
+ * <li><a href="#StateDiagram">State Diagram</a>
+ * <li><a href="#Valid_and_Invalid_States">Valid and Invalid States</a>
+ * <li><a href="#Permissions">Permissions</a>
+ * <li><a href="#Callbacks">Register informational and error callbacks</a>
+ * </ol>
+ *
+ * <div class="special reference">
+ * <h3>Developer Guides</h3>
+ * <p>For more information about how to use MediaPlayer2, read the
+ * <a href="{@docRoot}guide/topics/media/mediaplayer.html">Media Playback</a> developer guide.</p>
+ * </div>
+ *
+ * <a name="StateDiagram"></a>
+ * <h3>State Diagram</h3>
+ *
+ * <p>Playback control of audio/video files and streams is managed as a state
+ * machine. The following diagram shows the life cycle and the states of a
+ * MediaPlayer2 object driven by the supported playback control operations.
+ * The ovals represent the states a MediaPlayer2 object may reside
+ * in. The arcs represent the playback control operations that drive the object
+ * state transition. There are two types of arcs. The arcs with a single arrow
+ * head represent synchronous method calls, while those with
+ * a double arrow head represent asynchronous method calls.</p>
+ *
+ * <p><img src="../../../images/mediaplayer_state_diagram.gif"
+ *         alt="MediaPlayer State diagram"
+ *         border="0" /></p>
+ *
+ * <p>From this state diagram, one can see that a MediaPlayer2 object has the
+ *    following states:</p>
+ * <ul>
+ *     <li>When a MediaPlayer2 object is just created using <code>new</code> or
+ *         after {@link #reset()} is called, it is in the <em>Idle</em> state; and after
+ *         {@link #close()} is called, it is in the <em>End</em> state. Between these
+ *         two states is the life cycle of the MediaPlayer2 object.
+ *         <ul>
+ *         <li>There is a subtle but important difference between a newly constructed
+ *         MediaPlayer2 object and the MediaPlayer2 object after {@link #reset()}
+ *         is called. It is a programming error to invoke methods such
+ *         as {@link #getCurrentPosition()},
+ *         {@link #getDuration()}, {@link #getVideoHeight()},
+ *         {@link #getVideoWidth()}, {@link #setAudioAttributes(AudioAttributes)},
+ *         {@link #setVolume(float, float)}, {@link #pause()}, {@link #play()},
+ *         {@link #seekTo(long, int)} or
+ *         {@link #prepareAsync()} in the <em>Idle</em> state for both cases. If any of these
+ *         methods is called right after a MediaPlayer2 object is constructed,
+ *         the user supplied callback method OnErrorListener.onError() won't be
+ *         called by the internal player engine and the object state remains
+ *         unchanged; but if these methods are called right after {@link #reset()},
+ *         the user supplied callback method OnErrorListener.onError() will be
+ *         invoked by the internal player engine and the object will be
+ *         transfered to the <em>Error</em> state. </li>
+ *         <li>It is also recommended that once
+ *         a MediaPlayer2 object is no longer being used, call {@link #close()} immediately
+ *         so that resources used by the internal player engine associated with the
+ *         MediaPlayer2 object can be released immediately. Resource may include
+ *         singleton resources such as hardware acceleration components and
+ *         failure to call {@link #close()} may cause subsequent instances of
+ *         MediaPlayer2 objects to fallback to software implementations or fail
+ *         altogether. Once the MediaPlayer2
+ *         object is in the <em>End</em> state, it can no longer be used and
+ *         there is no way to bring it back to any other state. </li>
+ *         <li>Furthermore,
+ *         the MediaPlayer2 objects created using <code>new</code> is in the
+ *         <em>Idle</em> state.
+ *         </li>
+ *         </ul>
+ *         </li>
+ *     <li>In general, some playback control operation may fail due to various
+ *         reasons, such as unsupported audio/video format, poorly interleaved
+ *         audio/video, resolution too high, streaming timeout, and the like.
+ *         Thus, error reporting and recovery is an important concern under
+ *         these circumstances. Sometimes, due to programming errors, invoking a playback
+ *         control operation in an invalid state may also occur. Under all these
+ *         error conditions, the internal player engine invokes a user supplied
+ *         EventCallback.onError() method if an EventCallback has been
+ *         registered beforehand via
+ *         {@link #registerEventCallback(Executor, EventCallback)}.
+ *         <ul>
+ *         <li>It is important to note that once an error occurs, the
+ *         MediaPlayer2 object enters the <em>Error</em> state (except as noted
+ *         above), even if an error listener has not been registered by the application.</li>
+ *         <li>In order to reuse a MediaPlayer2 object that is in the <em>
+ *         Error</em> state and recover from the error,
+ *         {@link #reset()} can be called to restore the object to its <em>Idle</em>
+ *         state.</li>
+ *         <li>It is good programming practice to have your application
+ *         register a OnErrorListener to look out for error notifications from
+ *         the internal player engine.</li>
+ *         <li>IllegalStateException is
+ *         thrown to prevent programming errors such as calling
+ *         {@link #prepareAsync()}, {@link #setDataSource(DataSourceDesc)}, or
+ *         {@code setPlaylist} methods in an invalid state. </li>
+ *         </ul>
+ *         </li>
+ *     <li>Calling
+ *         {@link #setDataSource(DataSourceDesc)}, or
+ *         {@code setPlaylist} transfers a
+ *         MediaPlayer2 object in the <em>Idle</em> state to the
+ *         <em>Initialized</em> state.
+ *         <ul>
+ *         <li>An IllegalStateException is thrown if
+ *         setDataSource() or setPlaylist() is called in any other state.</li>
+ *         <li>It is good programming
+ *         practice to always look out for <code>IllegalArgumentException</code>
+ *         and <code>IOException</code> that may be thrown from
+ *         <code>setDataSource</code> and <code>setPlaylist</code> methods.</li>
+ *         </ul>
+ *         </li>
+ *     <li>A MediaPlayer2 object must first enter the <em>Prepared</em> state
+ *         before playback can be started.
+ *         <ul>
+ *         <li>There are an asynchronous way that the <em>Prepared</em> state can be reached:
+ *         a call to {@link #prepareAsync()} (asynchronous) which
+ *         first transfers the object to the <em>Preparing</em> state after the
+ *         call returns (which occurs almost right way) while the internal
+ *         player engine continues working on the rest of preparation work
+ *         until the preparation work completes. When the preparation completes,
+ *         the internal player engine then calls a user supplied callback method,
+ *         onInfo() of the EventCallback interface with {@link #MEDIA_INFO_PREPARED}, if an
+ *         EventCallback is registered beforehand via
+ *         {@link #registerEventCallback(Executor, EventCallback)}.</li>
+ *         <li>It is important to note that
+ *         the <em>Preparing</em> state is a transient state, and the behavior
+ *         of calling any method with side effect while a MediaPlayer2 object is
+ *         in the <em>Preparing</em> state is undefined.</li>
+ *         <li>An IllegalStateException is
+ *         thrown if {@link #prepareAsync()} is called in
+ *         any other state.</li>
+ *         <li>While in the <em>Prepared</em> state, properties
+ *         such as audio/sound volume, screenOnWhilePlaying, looping can be
+ *         adjusted by invoking the corresponding set methods.</li>
+ *         </ul>
+ *         </li>
+ *     <li>To start the playback, {@link #play()} must be called. After
+ *         {@link #play()} returns successfully, the MediaPlayer2 object is in the
+ *         <em>Started</em> state. {@link #isPlaying()} can be called to test
+ *         whether the MediaPlayer2 object is in the <em>Started</em> state.
+ *         <ul>
+ *         <li>While in the <em>Started</em> state, the internal player engine calls
+ *         a user supplied EventCallback.onBufferingUpdate() callback
+ *         method if an EventCallback has been registered beforehand
+ *         via {@link #registerEventCallback(Executor, EventCallback)}.
+ *         This callback allows applications to keep track of the buffering status
+ *         while streaming audio/video.</li>
+ *         <li>Calling {@link #play()} has not effect
+ *         on a MediaPlayer2 object that is already in the <em>Started</em> state.</li>
+ *         </ul>
+ *         </li>
+ *     <li>Playback can be paused and stopped, and the current playback position
+ *         can be adjusted. Playback can be paused via {@link #pause()}. When the call to
+ *         {@link #pause()} returns, the MediaPlayer2 object enters the
+ *         <em>Paused</em> state. Note that the transition from the <em>Started</em>
+ *         state to the <em>Paused</em> state and vice versa happens
+ *         asynchronously in the player engine. It may take some time before
+ *         the state is updated in calls to {@link #isPlaying()}, and it can be
+ *         a number of seconds in the case of streamed content.
+ *         <ul>
+ *         <li>Calling {@link #play()} to resume playback for a paused
+ *         MediaPlayer2 object, and the resumed playback
+ *         position is the same as where it was paused. When the call to
+ *         {@link #play()} returns, the paused MediaPlayer2 object goes back to
+ *         the <em>Started</em> state.</li>
+ *         <li>Calling {@link #pause()} has no effect on
+ *         a MediaPlayer2 object that is already in the <em>Paused</em> state.</li>
+ *         </ul>
+ *         </li>
+ *     <li>The playback position can be adjusted with a call to
+ *         {@link #seekTo(long, int)}.
+ *         <ul>
+ *         <li>Although the asynchronuous {@link #seekTo(long, int)}
+ *         call returns right away, the actual seek operation may take a while to
+ *         finish, especially for audio/video being streamed. When the actual
+ *         seek operation completes, the internal player engine calls a user
+ *         supplied EventCallback.onInfo() with {@link #MEDIA_INFO_COMPLETE_CALL_SEEK}
+ *         if an EventCallback has been registered beforehand via
+ *         {@link #registerEventCallback(Executor, EventCallback)}.</li>
+ *         <li>Please
+ *         note that {@link #seekTo(long, int)} can also be called in the other states,
+ *         such as <em>Prepared</em>, <em>Paused</em> and <em>PlaybackCompleted
+ *         </em> state. When {@link #seekTo(long, int)} is called in those states,
+ *         one video frame will be displayed if the stream has video and the requested
+ *         position is valid.
+ *         </li>
+ *         <li>Furthermore, the actual current playback position
+ *         can be retrieved with a call to {@link #getCurrentPosition()}, which
+ *         is helpful for applications such as a Music player that need to keep
+ *         track of the playback progress.</li>
+ *         </ul>
+ *         </li>
+ *     <li>When the playback reaches the end of stream, the playback completes.
+ *         <ul>
+ *         <li>If the looping mode was being set to one of the values of
+ *         {@link #LOOPING_MODE_FULL}, {@link #LOOPING_MODE_SINGLE} or
+ *         {@link #LOOPING_MODE_SHUFFLE} with
+ *         {@link #setLoopingMode(int)}, the MediaPlayer2 object shall remain in
+ *         the <em>Started</em> state.</li>
+ *         <li>If the looping mode was set to <var>false
+ *         </var>, the player engine calls a user supplied callback method,
+ *         EventCallback.onCompletion(), if an EventCallback is registered
+ *         beforehand via {@link #registerEventCallback(Executor, EventCallback)}.
+ *         The invoke of the callback signals that the object is now in the <em>
+ *         PlaybackCompleted</em> state.</li>
+ *         <li>While in the <em>PlaybackCompleted</em>
+ *         state, calling {@link #play()} can restart the playback from the
+ *         beginning of the audio/video source.</li>
+ * </ul>
+ *
+ *
+ * <a name="Valid_and_Invalid_States"></a>
+ * <h3>Valid and invalid states</h3>
+ *
+ * <table border="0" cellspacing="0" cellpadding="0">
+ * <tr><td>Method Name </p></td>
+ *     <td>Valid Sates </p></td>
+ *     <td>Invalid States </p></td>
+ *     <td>Comments </p></td></tr>
+ * <tr><td>attachAuxEffect </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Error} </p></td>
+ *     <td>This method must be called after setDataSource or setPlaylist.
+ *     Calling it does not change the object state. </p></td></tr>
+ * <tr><td>getAudioSessionId </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>getCurrentPosition </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted} </p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>getDuration </p></td>
+ *     <td>{Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Initialized, Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>getVideoHeight </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state.  </p></td></tr>
+ * <tr><td>getVideoWidth </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>isPlaying </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>pause </p></td>
+ *     <td>{Started, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Prepared, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Paused</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>prepareAsync </p></td>
+ *     <td>{Initialized, Stopped} </p></td>
+ *     <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Preparing</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>release </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>After {@link #close()}, the object is no longer available. </p></td></tr>
+ * <tr><td>reset </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted, Error}</p></td>
+ *     <td>{}</p></td>
+ *     <td>After {@link #reset()}, the object is like being just created.</p></td></tr>
+ * <tr><td>seekTo </p></td>
+ *     <td>{Prepared, Started, Paused, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Initialized, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>setAudioAttributes </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state. In order for the
+ *         target audio attributes type to become effective, this method must be called before
+ *         prepareAsync().</p></td></tr>
+ * <tr><td>setAudioSessionId </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>This method must be called in idle state as the audio session ID must be known before
+ *         calling setDataSource or setPlaylist. Calling it does not change the object
+ *         state. </p></td></tr>
+ * <tr><td>setAudioStreamType (deprecated)</p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state. In order for the
+ *         target audio stream type to become effective, this method must be called before
+ *         prepareAsync().</p></td></tr>
+ * <tr><td>setAuxEffectSendLevel </p></td>
+ *     <td>any</p></td>
+ *     <td>{} </p></td>
+ *     <td>Calling this method does not change the object state. </p></td></tr>
+ * <tr><td>setDataSource </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Initialized</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>setPlaylist </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Initialized</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>setDisplay </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setSurface </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setLoopingMode </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>isLooping </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>registerDrmEventCallback </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>registerEventCallback </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setPlaybackParams</p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, PlaybackCompleted, Error}</p></td>
+ *     <td>{Idle, Stopped} </p></td>
+ *     <td>This method will change state in some cases, depending on when it's called.
+ *         </p></td></tr>
+ * <tr><td>setVolume </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.
+ * <tr><td>play </p></td>
+ *     <td>{Prepared, Started, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Started</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>stop </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Stopped</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>getTrackInfo </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>selectTrack </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>deselectTrack </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ *
+ * </table>
+ *
+ * <a name="Permissions"></a>
+ * <h3>Permissions</h3>
+ * <p>One may need to declare a corresponding WAKE_LOCK permission {@link
+ * android.R.styleable#AndroidManifestUsesPermission &lt;uses-permission&gt;}
+ * element.
+ *
+ * <p>This class requires the {@link android.Manifest.permission#INTERNET} permission
+ * when used with network-based content.
+ *
+ * <a name="Callbacks"></a>
+ * <h3>Callbacks</h3>
+ * <p>Applications may want to register for informational and error
+ * events in order to be informed of some internal state update and
+ * possible runtime errors during playback or streaming. Registration for
+ * these events is done by properly setting the appropriate listeners (via calls
+ * to
+ * {@link #registerEventCallback(Executor, EventCallback)},
+ * {@link #registerDrmEventCallback(Executor, DrmEventCallback)}).
+ * In order to receive the respective callback
+ * associated with these listeners, applications are required to create
+ * MediaPlayer2 objects on a thread with its own Looper running (main UI
+ * thread by default has a Looper running).
+ *
+ */
+public abstract class MediaPlayer2 implements SubtitleController.Listener
+                                            , AudioRouting
+                                            , AutoCloseable
+{
+    /**
+       Constant to retrieve only the new metadata since the last
+       call.
+       // FIXME: unhide.
+       // FIXME: add link to getMetadata(boolean, boolean)
+       {@hide}
+     */
+    public static final boolean METADATA_UPDATE_ONLY = true;
+
+    /**
+       Constant to retrieve all the metadata.
+       // FIXME: unhide.
+       // FIXME: add link to getMetadata(boolean, boolean)
+       {@hide}
+     */
+    public static final boolean METADATA_ALL = false;
+
+    /**
+       Constant to enable the metadata filter during retrieval.
+       // FIXME: unhide.
+       // FIXME: add link to getMetadata(boolean, boolean)
+       {@hide}
+     */
+    public static final boolean APPLY_METADATA_FILTER = true;
+
+    /**
+       Constant to disable the metadata filter during retrieval.
+       // FIXME: unhide.
+       // FIXME: add link to getMetadata(boolean, boolean)
+       {@hide}
+     */
+    public static final boolean BYPASS_METADATA_FILTER = false;
+
+    /**
+     * Create a MediaPlayer2 object.
+     *
+     * @return A MediaPlayer2 object created
+     */
+    public static final MediaPlayer2 create() {
+        // TODO: load MediaUpdate APK
+        return new MediaPlayer2Impl();
+    }
+
+    /**
+     * @hide
+     */
+    // add hidden empty constructor so it doesn't show in SDK
+    public MediaPlayer2() { }
+
+    /**
+     * Create a request parcel which can be routed to the native media
+     * player using {@link #invoke(Parcel, Parcel)}. The Parcel
+     * returned has the proper InterfaceToken set. The caller should
+     * not overwrite that token, i.e it can only append data to the
+     * Parcel.
+     *
+     * @return A parcel suitable to hold a request for the native
+     * player.
+     * {@hide}
+     */
+    public Parcel newRequest() {
+        return null;
+    }
+
+    /**
+     * Invoke a generic method on the native player using opaque
+     * parcels for the request and reply. Both payloads' format is a
+     * convention between the java caller and the native player.
+     * Must be called after setDataSource or setPlaylist to make sure a native player
+     * exists. On failure, a RuntimeException is thrown.
+     *
+     * @param request Parcel with the data for the extension. The
+     * caller must use {@link #newRequest()} to get one.
+     *
+     * @param reply Output parcel with the data returned by the
+     * native player.
+     * {@hide}
+     */
+    public void invoke(Parcel request, Parcel reply) { }
+
+    /**
+     * Sets the {@link SurfaceHolder} to use for displaying the video
+     * portion of the media.
+     *
+     * Either a surface holder or surface must be set if a display or video sink
+     * is needed.  Not calling this method or {@link #setSurface(Surface)}
+     * when playing back a video will result in only the audio track being played.
+     * A null surface holder or surface will result in only the audio track being
+     * played.
+     *
+     * @param sh the SurfaceHolder to use for video display
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     * @hide
+     */
+    public abstract void setDisplay(SurfaceHolder sh);
+
+    /**
+     * Sets the {@link Surface} to be used as the sink for the video portion of
+     * the media.  Setting a
+     * Surface will un-set any Surface or SurfaceHolder that was previously set.
+     * A null surface will result in only the audio track being played.
+     *
+     * If the Surface sends frames to a {@link SurfaceTexture}, the timestamps
+     * returned from {@link SurfaceTexture#getTimestamp()} will have an
+     * unspecified zero point.  These timestamps cannot be directly compared
+     * between different media sources, different instances of the same media
+     * source, or multiple runs of the same program.  The timestamp is normally
+     * monotonically increasing and is unaffected by time-of-day adjustments,
+     * but it is reset when the position is set.
+     *
+     * @param surface The {@link Surface} to be used for the video portion of
+     * the media.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     */
+    public abstract void setSurface(Surface surface);
+
+    /* Do not change these video scaling mode values below without updating
+     * their counterparts in system/window.h! Please do not forget to update
+     * {@link #isVideoScalingModeSupported} when new video scaling modes
+     * are added.
+     */
+    /**
+     * Specifies a video scaling mode. The content is stretched to the
+     * surface rendering area. When the surface has the same aspect ratio
+     * as the content, the aspect ratio of the content is maintained;
+     * otherwise, the aspect ratio of the content is not maintained when video
+     * is being rendered.
+     * There is no content cropping with this video scaling mode.
+     */
+    public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT = 1;
+
+    /**
+     * Specifies a video scaling mode. The content is scaled, maintaining
+     * its aspect ratio. The whole surface area is always used. When the
+     * aspect ratio of the content is the same as the surface, no content
+     * is cropped; otherwise, content is cropped to fit the surface.
+     * @hide
+     */
+    public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING = 2;
+
+    /**
+     * Sets video scaling mode. To make the target video scaling mode
+     * effective during playback, this method must be called after
+     * data source is set. If not called, the default video
+     * scaling mode is {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}.
+     *
+     * <p> The supported video scaling modes are:
+     * <ul>
+     * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}
+     * </ul>
+     *
+     * @param mode target video scaling mode. Must be one of the supported
+     * video scaling modes; otherwise, IllegalArgumentException will be thrown.
+     *
+     * @see MediaPlayer2#VIDEO_SCALING_MODE_SCALE_TO_FIT
+     * @hide
+     */
+    public void setVideoScalingMode(int mode) { }
+
+    /**
+     * Discards all pending commands.
+     */
+    public abstract void clearPendingCommands();
+
+    /**
+     * Sets the data source as described by a DataSourceDesc.
+     *
+     * @param dsd the descriptor of data source you want to play
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws NullPointerException if dsd is null
+     */
+    public abstract void setDataSource(@NonNull DataSourceDesc dsd) throws IOException;
+
+    /**
+     * Gets the current data source as described by a DataSourceDesc.
+     *
+     * @return the current DataSourceDesc
+     */
+    public abstract DataSourceDesc getCurrentDataSource();
+
+    /**
+     * Sets the play list.
+     *
+     * If startIndex falls outside play list range, it will be clamped to the nearest index
+     * in the play list.
+     *
+     * @param pl the play list of data source you want to play
+     * @param startIndex the index of the DataSourceDesc in the play list you want to play first
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if pl is null or empty, or pl contains null DataSourceDesc
+     */
+    public abstract void setPlaylist(@NonNull List<DataSourceDesc> pl, int startIndex)
+            throws IOException;
+
+    /**
+     * Gets a copy of the play list.
+     *
+     * @return a copy of the play list used by {@link MediaPlayer2}
+     */
+    public abstract List<DataSourceDesc> getPlaylist();
+
+    /**
+     * Sets the index of current DataSourceDesc in the play list to be played.
+     *
+     * @param index the index of DataSourceDesc in the play list you want to play
+     * @throws IllegalArgumentException if the play list is null
+     * @throws NullPointerException if index is outside play list range
+     */
+    public abstract void setCurrentPlaylistItem(int index);
+
+    /**
+     * Sets the index of next-to-be-played DataSourceDesc in the play list.
+     *
+     * @param index the index of next-to-be-played DataSourceDesc in the play list
+     * @throws IllegalArgumentException if the play list is null
+     * @throws NullPointerException if index is outside play list range
+     */
+    public abstract void setNextPlaylistItem(int index);
+
+    /**
+     * Gets the current index of play list.
+     *
+     * @return the index of the current DataSourceDesc in the play list
+     */
+    public abstract int getCurrentPlaylistItemIndex();
+
+    /**
+     * Specifies a playback looping mode. The source will not be played in looping mode.
+     */
+    public static final int LOOPING_MODE_NONE = 0;
+    /**
+     * Specifies a playback looping mode. The full list of source will be played in looping mode,
+     * and in the order specified in the play list.
+     */
+    public static final int LOOPING_MODE_FULL = 1;
+    /**
+     * Specifies a playback looping mode. The current DataSourceDesc will be played in looping mode.
+     */
+    public static final int LOOPING_MODE_SINGLE = 2;
+    /**
+     * Specifies a playback looping mode. The full list of source will be played in looping mode,
+     * and in a random order.
+     */
+    public static final int LOOPING_MODE_SHUFFLE = 3;
+
+    /** @hide */
+    @IntDef(
+        value = {
+            LOOPING_MODE_NONE,
+            LOOPING_MODE_FULL,
+            LOOPING_MODE_SINGLE,
+            LOOPING_MODE_SHUFFLE,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface LoopingMode {}
+
+    /**
+     * Sets the looping mode of the play list.
+     * The mode shall be one of {@link #LOOPING_MODE_NONE}, {@link #LOOPING_MODE_FULL},
+     * {@link #LOOPING_MODE_SINGLE}, {@link #LOOPING_MODE_SHUFFLE}.
+     *
+     * @param mode the mode in which the play list will be played
+     * @throws IllegalArgumentException if mode is not supported
+     */
+    public abstract void setLoopingMode(@LoopingMode int mode);
+
+    /**
+     * Gets the looping mode of play list.
+     *
+     * @return the looping mode of the play list
+     */
+    public abstract int getLoopingMode();
+
+    /**
+     * Moves the DataSourceDesc at indexFrom in the play list to indexTo.
+     *
+     * @throws IllegalArgumentException if the play list is null
+     * @throws IndexOutOfBoundsException if indexFrom or indexTo is outside play list range
+     */
+    public abstract void movePlaylistItem(int indexFrom, int indexTo);
+
+    /**
+     * Removes the DataSourceDesc at index in the play list.
+     *
+     * If index is same as the current index of the play list, current DataSourceDesc
+     * will be stopped and playback moves to next source in the list.
+     *
+     * @return the removed DataSourceDesc at index in the play list
+     * @throws IllegalArgumentException if the play list is null
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     */
+    public abstract DataSourceDesc removePlaylistItem(int index);
+
+    /**
+     * Inserts the DataSourceDesc to the play list at position index.
+     *
+     * This will not change the DataSourceDesc currently being played.
+     * If index is less than or equal to the current index of the play list,
+     * the current index of the play list will be incremented correspondingly.
+     *
+     * @param index the index you want to add dsd to the play list
+     * @param dsd the descriptor of data source you want to add to the play list
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     * @throws NullPointerException if dsd is null
+     */
+    public abstract void addPlaylistItem(int index, DataSourceDesc dsd);
+
+    /**
+     * replaces the DataSourceDesc at index in the play list with given dsd.
+     *
+     * When index is same as the current index of the play list, the current source
+     * will be stopped and the new source will be played, except that if new
+     * and old source only differ on end position and current media position is
+     * smaller then the new end position.
+     *
+     * This will not change the DataSourceDesc currently being played.
+     * If index is less than or equal to the current index of the play list,
+     * the current index of the play list will be incremented correspondingly.
+     *
+     * @param index the index you want to add dsd to the play list
+     * @param dsd the descriptor of data source you want to add to the play list
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     * @throws NullPointerException if dsd is null
+     */
+    public abstract DataSourceDesc editPlaylistItem(int index, DataSourceDesc dsd);
+
+    /**
+     * Prepares the player for playback, synchronously.
+     *
+     * After setting the datasource and the display surface, you need to either
+     * call prepare() or prepareAsync(). For files, it is OK to call prepare(),
+     * which blocks until MediaPlayer2 is ready for playback.
+     *
+     * @throws IOException if source can not be accessed
+     * @throws IllegalStateException if it is called in an invalid state
+     * @hide
+     */
+    public void prepare() throws IOException { }
+
+    /**
+     * Prepares the player for playback, asynchronously.
+     *
+     * After setting the datasource and the display surface, you need to
+     * call prepareAsync().
+     *
+     * @throws IllegalStateException if it is called in an invalid state
+     */
+    public abstract void prepareAsync();
+
+    /**
+     * Starts or resumes playback. If playback had previously been paused,
+     * playback will continue from where it was paused. If playback had
+     * been stopped, or never started before, playback will start at the
+     * beginning.
+     *
+     * @throws IllegalStateException if it is called in an invalid state
+     */
+    public abstract void play();
+
+    /**
+     * Stops playback after playback has been started or paused.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * @hide
+     */
+    public void stop() { }
+
+    /**
+     * Pauses playback. Call play() to resume.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    public abstract void pause();
+
+    //--------------------------------------------------------------------------
+    // Explicit Routing
+    //--------------------
+
+    /**
+     * Specifies an audio device (via an {@link AudioDeviceInfo} object) to route
+     * the output from this MediaPlayer2.
+     * @param deviceInfo The {@link AudioDeviceInfo} specifying the audio sink or source.
+     *  If deviceInfo is null, default routing is restored.
+     * @return true if succesful, false if the specified {@link AudioDeviceInfo} is non-null and
+     * does not correspond to a valid audio device.
+     */
+    @Override
+    public abstract boolean setPreferredDevice(AudioDeviceInfo deviceInfo);
+
+    /**
+     * Returns the selected output specified by {@link #setPreferredDevice}. Note that this
+     * is not guaranteed to correspond to the actual device being used for playback.
+     */
+    @Override
+    public abstract AudioDeviceInfo getPreferredDevice();
+
+    /**
+     * Returns an {@link AudioDeviceInfo} identifying the current routing of this MediaPlayer2
+     * Note: The query is only valid if the MediaPlayer2 is currently playing.
+     * If the player is not playing, the returned device can be null or correspond to previously
+     * selected device when the player was last active.
+     */
+    @Override
+    public abstract AudioDeviceInfo getRoutedDevice();
+
+    /**
+     * Adds an {@link AudioRouting.OnRoutingChangedListener} to receive notifications of routing
+     * changes on this MediaPlayer2.
+     * @param listener The {@link AudioRouting.OnRoutingChangedListener} interface to receive
+     * notifications of rerouting events.
+     * @param handler  Specifies the {@link Handler} object for the thread on which to execute
+     * the callback. If <code>null</code>, the handler on the main looper will be used.
+     */
+    @Override
+    public abstract void addOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener,
+            Handler handler);
+
+    /**
+     * Removes an {@link AudioRouting.OnRoutingChangedListener} which has been previously added
+     * to receive rerouting notifications.
+     * @param listener The previously added {@link AudioRouting.OnRoutingChangedListener} interface
+     * to remove.
+     */
+    @Override
+    public abstract void removeOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener);
+
+    /**
+     * Set the low-level power management behavior for this MediaPlayer2.
+     *
+     * <p>This function has the MediaPlayer2 access the low-level power manager
+     * service to control the device's power usage while playing is occurring.
+     * The parameter is a combination of {@link android.os.PowerManager} wake flags.
+     * Use of this method requires {@link android.Manifest.permission#WAKE_LOCK}
+     * permission.
+     * By default, no attempt is made to keep the device awake during playback.
+     *
+     * @param context the Context to use
+     * @param mode    the power/wake mode to set
+     * @see android.os.PowerManager
+     * @hide
+     */
+    public abstract void setWakeMode(Context context, int mode);
+
+    /**
+     * Control whether we should use the attached SurfaceHolder to keep the
+     * screen on while video playback is occurring.  This is the preferred
+     * method over {@link #setWakeMode} where possible, since it doesn't
+     * require that the application have permission for low-level wake lock
+     * access.
+     *
+     * @param screenOn Supply true to keep the screen on, false to allow it
+     * to turn off.
+     * @hide
+     */
+    public abstract void setScreenOnWhilePlaying(boolean screenOn);
+
+    /**
+     * Returns the width of the video.
+     *
+     * @return the width of the video, or 0 if there is no video,
+     * no display surface was set, or the width has not been determined
+     * yet. The {@code EventCallback} can be registered via
+     * {@link #registerEventCallback(Executor, EventCallback)} to provide a
+     * notification {@code EventCallback.onVideoSizeChanged} when the width is available.
+     */
+    public abstract int getVideoWidth();
+
+    /**
+     * Returns the height of the video.
+     *
+     * @return the height of the video, or 0 if there is no video,
+     * no display surface was set, or the height has not been determined
+     * yet. The {@code EventCallback} can be registered via
+     * {@link #registerEventCallback(Executor, EventCallback)} to provide a
+     * notification {@code EventCallback.onVideoSizeChanged} when the height is available.
+     */
+    public abstract int getVideoHeight();
+
+    /**
+     * Return Metrics data about the current player.
+     *
+     * @return a {@link PersistableBundle} containing the set of attributes and values
+     * available for the media being handled by this instance of MediaPlayer2
+     * The attributes are descibed in {@link MetricsConstants}.
+     *
+     *  Additional vendor-specific fields may also be present in
+     *  the return value.
+     */
+    public abstract PersistableBundle getMetrics();
+
+    /**
+     * Checks whether the MediaPlayer2 is playing.
+     *
+     * @return true if currently playing, false otherwise
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     */
+    public abstract boolean isPlaying();
+
+    /**
+     * Gets the current buffering management params used by the source component.
+     * Calling it only after {@code setDataSource} has been called.
+     * Each type of data source might have different set of default params.
+     *
+     * @return the current buffering management params used by the source component.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized, or {@code setDataSource} has not been called.
+     * @hide
+     */
+    @NonNull
+    public BufferingParams getBufferingParams() {
+        return new BufferingParams.Builder().build();
+    }
+
+    /**
+     * Sets buffering management params.
+     * The object sets its internal BufferingParams to the input, except that the input is
+     * invalid or not supported.
+     * Call it only after {@code setDataSource} has been called.
+     * The input is a hint to MediaPlayer2.
+     *
+     * @param params the buffering management params.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released, or {@code setDataSource} has not been called.
+     * @throws IllegalArgumentException if params is invalid or not supported.
+     * @hide
+     */
+    public void setBufferingParams(@NonNull BufferingParams params) { }
+
+    /**
+     * Change playback speed of audio by resampling the audio.
+     * <p>
+     * Specifies resampling as audio mode for variable rate playback, i.e.,
+     * resample the waveform based on the requested playback rate to get
+     * a new waveform, and play back the new waveform at the original sampling
+     * frequency.
+     * When rate is larger than 1.0, pitch becomes higher.
+     * When rate is smaller than 1.0, pitch becomes lower.
+     *
+     * @hide
+     */
+    public static final int PLAYBACK_RATE_AUDIO_MODE_RESAMPLE = 2;
+
+    /**
+     * Change playback speed of audio without changing its pitch.
+     * <p>
+     * Specifies time stretching as audio mode for variable rate playback.
+     * Time stretching changes the duration of the audio samples without
+     * affecting its pitch.
+     * <p>
+     * This mode is only supported for a limited range of playback speed factors,
+     * e.g. between 1/2x and 2x.
+     *
+     * @hide
+     */
+    public static final int PLAYBACK_RATE_AUDIO_MODE_STRETCH = 1;
+
+    /**
+     * Change playback speed of audio without changing its pitch, and
+     * possibly mute audio if time stretching is not supported for the playback
+     * speed.
+     * <p>
+     * Try to keep audio pitch when changing the playback rate, but allow the
+     * system to determine how to change audio playback if the rate is out
+     * of range.
+     *
+     * @hide
+     */
+    public static final int PLAYBACK_RATE_AUDIO_MODE_DEFAULT = 0;
+
+    /** @hide */
+    @IntDef(
+        value = {
+            PLAYBACK_RATE_AUDIO_MODE_DEFAULT,
+            PLAYBACK_RATE_AUDIO_MODE_STRETCH,
+            PLAYBACK_RATE_AUDIO_MODE_RESAMPLE,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface PlaybackRateAudioMode {}
+
+    /**
+     * Sets playback rate and audio mode.
+     *
+     * @param rate the ratio between desired playback rate and normal one.
+     * @param audioMode audio playback mode. Must be one of the supported
+     * audio modes.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * @throws IllegalArgumentException if audioMode is not supported.
+     *
+     * @hide
+     */
+    @NonNull
+    public PlaybackParams easyPlaybackParams(float rate, @PlaybackRateAudioMode int audioMode) {
+        return new PlaybackParams();
+    }
+
+    /**
+     * Sets playback rate using {@link PlaybackParams}. The object sets its internal
+     * PlaybackParams to the input, except that the object remembers previous speed
+     * when input speed is zero. This allows the object to resume at previous speed
+     * when play() is called. Calling it before the object is prepared does not change
+     * the object state. After the object is prepared, calling it with zero speed is
+     * equivalent to calling pause(). After the object is prepared, calling it with
+     * non-zero speed is equivalent to calling play().
+     *
+     * @param params the playback params.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     * @throws IllegalArgumentException if params is not supported.
+     */
+    public abstract void setPlaybackParams(@NonNull PlaybackParams params);
+
+    /**
+     * Gets the playback params, containing the current playback rate.
+     *
+     * @return the playback params.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    @NonNull
+    public abstract PlaybackParams getPlaybackParams();
+
+    /**
+     * Sets A/V sync mode.
+     *
+     * @param params the A/V sync params to apply
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * @throws IllegalArgumentException if params are not supported.
+     */
+    public abstract void setSyncParams(@NonNull SyncParams params);
+
+    /**
+     * Gets the A/V sync mode.
+     *
+     * @return the A/V sync params
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    @NonNull
+    public abstract SyncParams getSyncParams();
+
+    /**
+     * Seek modes used in method seekTo(long, int) to move media position
+     * to a specified location.
+     *
+     * Do not change these mode values without updating their counterparts
+     * in include/media/IMediaSource.h!
+     */
+    /**
+     * This mode is used with {@link #seekTo(long, int)} to move media position to
+     * a sync (or key) frame associated with a data source that is located
+     * right before or at the given time.
+     *
+     * @see #seekTo(long, int)
+     */
+    public static final int SEEK_PREVIOUS_SYNC    = 0x00;
+    /**
+     * This mode is used with {@link #seekTo(long, int)} to move media position to
+     * a sync (or key) frame associated with a data source that is located
+     * right after or at the given time.
+     *
+     * @see #seekTo(long, int)
+     */
+    public static final int SEEK_NEXT_SYNC        = 0x01;
+    /**
+     * This mode is used with {@link #seekTo(long, int)} to move media position to
+     * a sync (or key) frame associated with a data source that is located
+     * closest to (in time) or at the given time.
+     *
+     * @see #seekTo(long, int)
+     */
+    public static final int SEEK_CLOSEST_SYNC     = 0x02;
+    /**
+     * This mode is used with {@link #seekTo(long, int)} to move media position to
+     * a frame (not necessarily a key frame) associated with a data source that
+     * is located closest to or at the given time.
+     *
+     * @see #seekTo(long, int)
+     */
+    public static final int SEEK_CLOSEST          = 0x03;
+
+    /** @hide */
+    @IntDef(
+        value = {
+            SEEK_PREVIOUS_SYNC,
+            SEEK_NEXT_SYNC,
+            SEEK_CLOSEST_SYNC,
+            SEEK_CLOSEST,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface SeekMode {}
+
+    /**
+     * Moves the media to specified time position by considering the given mode.
+     * <p>
+     * When seekTo is finished, the user will be notified via OnSeekComplete supplied by the user.
+     * There is at most one active seekTo processed at any time. If there is a to-be-completed
+     * seekTo, new seekTo requests will be queued in such a way that only the last request
+     * is kept. When current seekTo is completed, the queued request will be processed if
+     * that request is different from just-finished seekTo operation, i.e., the requested
+     * position or mode is different.
+     *
+     * @param msec the offset in milliseconds from the start to seek to.
+     * When seeking to the given time position, there is no guarantee that the data source
+     * has a frame located at the position. When this happens, a frame nearby will be rendered.
+     * If msec is negative, time position zero will be used.
+     * If msec is larger than duration, duration will be used.
+     * @param mode the mode indicating where exactly to seek to.
+     * Use {@link #SEEK_PREVIOUS_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp earlier than or the same as msec. Use
+     * {@link #SEEK_NEXT_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp later than or the same as msec. Use
+     * {@link #SEEK_CLOSEST_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp closest to or the same as msec. Use
+     * {@link #SEEK_CLOSEST} if one wants to seek to a frame that may
+     * or may not be a sync frame but is closest to or the same as msec.
+     * {@link #SEEK_CLOSEST} often has larger performance overhead compared
+     * to the other options if there is no sync frame located at msec.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized
+     * @throws IllegalArgumentException if the mode is invalid.
+     */
+    public abstract void seekTo(long msec, @SeekMode int mode);
+
+    /**
+     * Get current playback position as a {@link MediaTimestamp}.
+     * <p>
+     * The MediaTimestamp represents how the media time correlates to the system time in
+     * a linear fashion using an anchor and a clock rate. During regular playback, the media
+     * time moves fairly constantly (though the anchor frame may be rebased to a current
+     * system time, the linear correlation stays steady). Therefore, this method does not
+     * need to be called often.
+     * <p>
+     * To help users get current playback position, this method always anchors the timestamp
+     * to the current {@link System#nanoTime system time}, so
+     * {@link MediaTimestamp#getAnchorMediaTimeUs} can be used as current playback position.
+     *
+     * @return a MediaTimestamp object if a timestamp is available, or {@code null} if no timestamp
+     *         is available, e.g. because the media player has not been initialized.
+     *
+     * @see MediaTimestamp
+     */
+    @Nullable
+    public abstract MediaTimestamp getTimestamp();
+
+    /**
+     * Gets the current playback position.
+     *
+     * @return the current position in milliseconds
+     */
+    public abstract int getCurrentPosition();
+
+    /**
+     * Gets the duration of the file.
+     *
+     * @return the duration in milliseconds, if no duration is available
+     *         (for example, if streaming live content), -1 is returned.
+     */
+    public abstract int getDuration();
+
+    /**
+     * Gets the media metadata.
+     *
+     * @param update_only controls whether the full set of available
+     * metadata is returned or just the set that changed since the
+     * last call. See {@see #METADATA_UPDATE_ONLY} and {@see
+     * #METADATA_ALL}.
+     *
+     * @param apply_filter if true only metadata that matches the
+     * filter is returned. See {@see #APPLY_METADATA_FILTER} and {@see
+     * #BYPASS_METADATA_FILTER}.
+     *
+     * @return The metadata, possibly empty. null if an error occured.
+     // FIXME: unhide.
+     * {@hide}
+     */
+    public Metadata getMetadata(final boolean update_only,
+            final boolean apply_filter) {
+        return null;
+    }
+
+    /**
+     * Set a filter for the metadata update notification and update
+     * retrieval. The caller provides 2 set of metadata keys, allowed
+     * and blocked. The blocked set always takes precedence over the
+     * allowed one.
+     * Metadata.MATCH_ALL and Metadata.MATCH_NONE are 2 sets available as
+     * shorthands to allow/block all or no metadata.
+     *
+     * By default, there is no filter set.
+     *
+     * @param allow Is the set of metadata the client is interested
+     *              in receiving new notifications for.
+     * @param block Is the set of metadata the client is not interested
+     *              in receiving new notifications for.
+     * @return The call status code.
+     *
+     // FIXME: unhide.
+     * {@hide}
+     */
+    public int setMetadataFilter(Set<Integer> allow, Set<Integer> block) {
+        return 0;
+    }
+
+    /**
+     * Set the MediaPlayer2 to start when this MediaPlayer2 finishes playback
+     * (i.e. reaches the end of the stream).
+     * The media framework will attempt to transition from this player to
+     * the next as seamlessly as possible. The next player can be set at
+     * any time before completion, but shall be after setDataSource has been
+     * called successfully. The next player must be prepared by the
+     * app, and the application should not call play() on it.
+     * The next MediaPlayer2 must be different from 'this'. An exception
+     * will be thrown if next == this.
+     * The application may call setNextMediaPlayer(null) to indicate no
+     * next player should be started at the end of playback.
+     * If the current player is looping, it will keep looping and the next
+     * player will not be started.
+     *
+     * @param next the player to start after this one completes playback.
+     *
+     * @hide
+     */
+    public void setNextMediaPlayer(MediaPlayer2 next) { }
+
+    /**
+     * Resets the MediaPlayer2 to its uninitialized state. After calling
+     * this method, you will have to initialize it again by setting the
+     * data source and calling prepareAsync().
+     */
+    public abstract void reset();
+
+    /**
+     * Set up a timer for {@link #TimeProvider}. {@link #TimeProvider} will be
+     * notified when the presentation time reaches (becomes greater than or equal to)
+     * the value specified.
+     *
+     * @param mediaTimeUs presentation time to get timed event callback at
+     * @hide
+     */
+    public void notifyAt(long mediaTimeUs) { }
+
+    /**
+     * Sets the audio attributes for this MediaPlayer2.
+     * See {@link AudioAttributes} for how to build and configure an instance of this class.
+     * You must call this method before {@link #prepareAsync()} in order
+     * for the audio attributes to become effective thereafter.
+     * @param attributes a non-null set of audio attributes
+     * @throws IllegalArgumentException if the attributes are null or invalid.
+     */
+    public abstract void setAudioAttributes(AudioAttributes attributes);
+
+    /**
+     * Sets the player to be looping or non-looping.
+     *
+     * @param looping whether to loop or not
+     * @hide
+     */
+    public void setLooping(boolean looping) { }
+
+    /**
+     * Checks whether the MediaPlayer2 is looping or non-looping.
+     *
+     * @return true if the MediaPlayer2 is currently looping, false otherwise
+     * @hide
+     */
+    public boolean isLooping() {
+        return false;
+    }
+
+    /**
+     * Sets the volume on this player.
+     * This API is recommended for balancing the output of audio streams
+     * within an application. Unless you are writing an application to
+     * control user settings, this API should be used in preference to
+     * {@link AudioManager#setStreamVolume(int, int, int)} which sets the volume of ALL streams of
+     * a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0.
+     * UI controls should be scaled logarithmically.
+     *
+     * @param leftVolume left volume scalar
+     * @param rightVolume right volume scalar
+     */
+    /*
+     * FIXME: Merge this into javadoc comment above when setVolume(float) is not @hide.
+     * The single parameter form below is preferred if the channel volumes don't need
+     * to be set independently.
+     */
+    public abstract void setVolume(float leftVolume, float rightVolume);
+
+    /**
+     * Similar, excepts sets volume of all channels to same value.
+     * @hide
+     */
+    public void setVolume(float volume) { }
+
+    /**
+     * Sets the audio session ID.
+     *
+     * @param sessionId the audio session ID.
+     * The audio session ID is a system wide unique identifier for the audio stream played by
+     * this MediaPlayer2 instance.
+     * The primary use of the audio session ID  is to associate audio effects to a particular
+     * instance of MediaPlayer2: if an audio session ID is provided when creating an audio effect,
+     * this effect will be applied only to the audio content of media players within the same
+     * audio session and not to the output mix.
+     * When created, a MediaPlayer2 instance automatically generates its own audio session ID.
+     * However, it is possible to force this player to be part of an already existing audio session
+     * by calling this method.
+     * This method must be called before one of the overloaded <code> setDataSource </code> methods.
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if the sessionId is invalid.
+     */
+    public abstract void setAudioSessionId(int sessionId);
+
+    /**
+     * Returns the audio session ID.
+     *
+     * @return the audio session ID. {@see #setAudioSessionId(int)}
+     * Note that the audio session ID is 0 only if a problem occured when the MediaPlayer2 was contructed.
+     */
+    public abstract int getAudioSessionId();
+
+    /**
+     * Attaches an auxiliary effect to the player. A typical auxiliary effect is a reverberation
+     * effect which can be applied on any sound source that directs a certain amount of its
+     * energy to this effect. This amount is defined by setAuxEffectSendLevel().
+     * See {@link #setAuxEffectSendLevel(float)}.
+     * <p>After creating an auxiliary effect (e.g.
+     * {@link android.media.audiofx.EnvironmentalReverb}), retrieve its ID with
+     * {@link android.media.audiofx.AudioEffect#getId()} and use it when calling this method
+     * to attach the player to the effect.
+     * <p>To detach the effect from the player, call this method with a null effect id.
+     * <p>This method must be called after one of the overloaded <code> setDataSource </code>
+     * methods.
+     * @param effectId system wide unique id of the effect to attach
+     */
+    public abstract void attachAuxEffect(int effectId);
+
+
+    /**
+     * Sets the send level of the player to the attached auxiliary effect.
+     * See {@link #attachAuxEffect(int)}. The level value range is 0 to 1.0.
+     * <p>By default the send level is 0, so even if an effect is attached to the player
+     * this method must be called for the effect to be applied.
+     * <p>Note that the passed level value is a raw scalar. UI controls should be scaled
+     * logarithmically: the gain applied by audio framework ranges from -72dB to 0dB,
+     * so an appropriate conversion from linear UI input x to level is:
+     * x == 0 -> level = 0
+     * 0 < x <= R -> level = 10^(72*(x-R)/20/R)
+     * @param level send level scalar
+     */
+    public abstract void setAuxEffectSendLevel(float level);
+
+    /**
+     * Class for MediaPlayer2 to return each audio/video/subtitle track's metadata.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    public abstract static class TrackInfo {
+        /**
+         * Gets the track type.
+         * @return TrackType which indicates if the track is video, audio, timed text.
+         */
+        public abstract int getTrackType();
+
+        /**
+         * Gets the language code of the track.
+         * @return a language code in either way of ISO-639-1 or ISO-639-2.
+         * When the language is unknown or could not be determined,
+         * ISO-639-2 language code, "und", is returned.
+         */
+        public abstract String getLanguage();
+
+        /**
+         * Gets the {@link MediaFormat} of the track.  If the format is
+         * unknown or could not be determined, null is returned.
+         */
+        public abstract MediaFormat getFormat();
+
+        public static final int MEDIA_TRACK_TYPE_UNKNOWN = 0;
+        public static final int MEDIA_TRACK_TYPE_VIDEO = 1;
+        public static final int MEDIA_TRACK_TYPE_AUDIO = 2;
+
+        /** @hide */
+        public static final int MEDIA_TRACK_TYPE_TIMEDTEXT = 3;
+
+        public static final int MEDIA_TRACK_TYPE_SUBTITLE = 4;
+        public static final int MEDIA_TRACK_TYPE_METADATA = 5;
+
+        @Override
+        public abstract String toString();
+    };
+
+    /**
+     * Returns a List of track information.
+     *
+     * @return List of track info. The total number of tracks is the array length.
+     * Must be called again if an external timed text source has been added after
+     * addTimedTextSource method is called.
+     * @throws IllegalStateException if it is called in an invalid state.
+     */
+    public abstract List<TrackInfo> getTrackInfo();
+
+    /* Do not change these values without updating their counterparts
+     * in include/media/stagefright/MediaDefs.h and media/libstagefright/MediaDefs.cpp!
+     */
+    /**
+     * MIME type for SubRip (SRT) container. Used in addTimedTextSource APIs.
+     * @hide
+     */
+    public static final String MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
+
+    /**
+     * MIME type for WebVTT subtitle data.
+     * @hide
+     */
+    public static final String MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
+
+    /**
+     * MIME type for CEA-608 closed caption data.
+     * @hide
+     */
+    public static final String MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
+
+    /**
+     * MIME type for CEA-708 closed caption data.
+     * @hide
+     */
+    public static final String MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
+
+    /** @hide */
+    public void setSubtitleAnchor(
+            SubtitleController controller,
+            SubtitleController.Anchor anchor) { }
+
+    /** @hide */
+    @Override
+    public void onSubtitleTrackSelected(SubtitleTrack track) { }
+
+    /** @hide */
+    public void addSubtitleSource(InputStream is, MediaFormat format) { }
+
+    /* TODO: Limit the total number of external timed text source to a reasonable number.
+     */
+    /**
+     * Adds an external timed text source file.
+     *
+     * Currently supported format is SubRip with the file extension .srt, case insensitive.
+     * Note that a single external timed text source may contain multiple tracks in it.
+     * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
+     * additional tracks become available after this method call.
+     *
+     * @param path The file path of external timed text source file.
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IOException if the file cannot be accessed or is corrupted.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    public void addTimedTextSource(String path, String mimeType) throws IOException { }
+
+    /**
+     * Adds an external timed text source file (Uri).
+     *
+     * Currently supported format is SubRip with the file extension .srt, case insensitive.
+     * Note that a single external timed text source may contain multiple tracks in it.
+     * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
+     * additional tracks become available after this method call.
+     *
+     * @param context the Context to use when resolving the Uri
+     * @param uri the Content URI of the data you want to play
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IOException if the file cannot be accessed or is corrupted.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    public void addTimedTextSource(Context context, Uri uri, String mimeType) throws IOException { }
+
+    /**
+     * Adds an external timed text source file (FileDescriptor).
+     *
+     * It is the caller's responsibility to close the file descriptor.
+     * It is safe to do so as soon as this call returns.
+     *
+     * Currently supported format is SubRip. Note that a single external timed text source may
+     * contain multiple tracks in it. One can find the total number of available tracks
+     * using {@link #getTrackInfo()} to see what additional tracks become available
+     * after this method call.
+     *
+     * @param fd the FileDescriptor for the file you want to play
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    public void addTimedTextSource(FileDescriptor fd, String mimeType) { }
+
+    /**
+     * Adds an external timed text file (FileDescriptor).
+     *
+     * It is the caller's responsibility to close the file descriptor.
+     * It is safe to do so as soon as this call returns.
+     *
+     * Currently supported format is SubRip. Note that a single external timed text source may
+     * contain multiple tracks in it. One can find the total number of available tracks
+     * using {@link #getTrackInfo()} to see what additional tracks become available
+     * after this method call.
+     *
+     * @param fd the FileDescriptor for the file you want to play
+     * @param offset the offset into the file where the data to be played starts, in bytes
+     * @param length the length in bytes of the data to be played
+     * @param mime The mime type of the file. Must be one of the mime types listed above.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    public abstract void addTimedTextSource(FileDescriptor fd, long offset, long length, String mime);
+
+    /**
+     * Returns the index of the audio, video, or subtitle track currently selected for playback,
+     * The return value is an index into the array returned by {@link #getTrackInfo()}, and can
+     * be used in calls to {@link #selectTrack(int)} or {@link #deselectTrack(int)}.
+     *
+     * @param trackType should be one of {@link TrackInfo#MEDIA_TRACK_TYPE_VIDEO},
+     * {@link TrackInfo#MEDIA_TRACK_TYPE_AUDIO}, or
+     * {@link TrackInfo#MEDIA_TRACK_TYPE_SUBTITLE}
+     * @return index of the audio, video, or subtitle track currently selected for playback;
+     * a negative integer is returned when there is no selected track for {@code trackType} or
+     * when {@code trackType} is not one of audio, video, or subtitle.
+     * @throws IllegalStateException if called after {@link #close()}
+     *
+     * @see #getTrackInfo()
+     * @see #selectTrack(int)
+     * @see #deselectTrack(int)
+     */
+    public abstract int getSelectedTrack(int trackType);
+
+    /**
+     * Selects a track.
+     * <p>
+     * If a MediaPlayer2 is in invalid state, it throws an IllegalStateException exception.
+     * If a MediaPlayer2 is in <em>Started</em> state, the selected track is presented immediately.
+     * If a MediaPlayer2 is not in Started state, it just marks the track to be played.
+     * </p>
+     * <p>
+     * In any valid state, if it is called multiple times on the same type of track (ie. Video,
+     * Audio, Timed Text), the most recent one will be chosen.
+     * </p>
+     * <p>
+     * The first audio and video tracks are selected by default if available, even though
+     * this method is not called. However, no timed text track will be selected until
+     * this function is called.
+     * </p>
+     * <p>
+     * Currently, only timed text tracks or audio tracks can be selected via this method.
+     * In addition, the support for selecting an audio track at runtime is pretty limited
+     * in that an audio track can only be selected in the <em>Prepared</em> state.
+     * </p>
+     * @param index the index of the track to be selected. The valid range of the index
+     * is 0..total number of track - 1. The total number of tracks as well as the type of
+     * each individual track can be found by calling {@link #getTrackInfo()} method.
+     * @throws IllegalStateException if called in an invalid state.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    public abstract void selectTrack(int index);
+
+    /**
+     * Deselect a track.
+     * <p>
+     * Currently, the track must be a timed text track and no audio or video tracks can be
+     * deselected. If the timed text track identified by index has not been
+     * selected before, it throws an exception.
+     * </p>
+     * @param index the index of the track to be deselected. The valid range of the index
+     * is 0..total number of tracks - 1. The total number of tracks as well as the type of
+     * each individual track can be found by calling {@link #getTrackInfo()} method.
+     * @throws IllegalStateException if called in an invalid state.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    public abstract void deselectTrack(int index);
+
+    /**
+     * Sets the target UDP re-transmit endpoint for the low level player.
+     * Generally, the address portion of the endpoint is an IP multicast
+     * address, although a unicast address would be equally valid.  When a valid
+     * retransmit endpoint has been set, the media player will not decode and
+     * render the media presentation locally.  Instead, the player will attempt
+     * to re-multiplex its media data using the Android@Home RTP profile and
+     * re-transmit to the target endpoint.  Receiver devices (which may be
+     * either the same as the transmitting device or different devices) may
+     * instantiate, prepare, and start a receiver player using a setDataSource
+     * URL of the form...
+     *
+     * aahRX://&lt;multicastIP&gt;:&lt;port&gt;
+     *
+     * to receive, decode and render the re-transmitted content.
+     *
+     * setRetransmitEndpoint may only be called before setDataSource has been
+     * called; while the player is in the Idle state.
+     *
+     * @param endpoint the address and UDP port of the re-transmission target or
+     * null if no re-transmission is to be performed.
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if the retransmit endpoint is supplied,
+     * but invalid.
+     *
+     * {@hide} pending API council
+     */
+    public void setRetransmitEndpoint(InetSocketAddress endpoint) { }
+
+    /**
+     * Releases the resources held by this {@code MediaPlayer2} object.
+     *
+     * It is considered good practice to call this method when you're
+     * done using the MediaPlayer2. In particular, whenever an Activity
+     * of an application is paused (its onPause() method is called),
+     * or stopped (its onStop() method is called), this method should be
+     * invoked to release the MediaPlayer2 object, unless the application
+     * has a special need to keep the object around. In addition to
+     * unnecessary resources (such as memory and instances of codecs)
+     * being held, failure to call this method immediately if a
+     * MediaPlayer2 object is no longer needed may also lead to
+     * continuous battery consumption for mobile devices, and playback
+     * failure for other applications if no multiple instances of the
+     * same codec are supported on a device. Even if multiple instances
+     * of the same codec are supported, some performance degradation
+     * may be expected when unnecessary multiple instances are used
+     * at the same time.
+     *
+     * {@code close()} may be safely called after a prior {@code close()}.
+     * This class implements the Java {@code AutoCloseable} interface and
+     * may be used with try-with-resources.
+     */
+    @Override
+    public abstract void close();
+
+    /** @hide */
+    public MediaTimeProvider getMediaTimeProvider() {
+        return null;
+    }
+
+    /**
+     * Interface definition for callbacks to be invoked when the player has the corresponding
+     * events.
+     */
+    public abstract static class EventCallback {
+        /**
+         * Called to update status in buffering a media source received through
+         * progressive downloading. The received buffering percentage
+         * indicates how much of the content has been buffered or played.
+         * For example a buffering update of 80 percent when half the content
+         * has already been played indicates that the next 30 percent of the
+         * content to play has been buffered.
+         *
+         * @param mp the MediaPlayer2 the update pertains to
+         * @param srcId the Id of this data source
+         * @param percent the percentage (0-100) of the content
+         *                that has been buffered or played thus far
+         */
+        public void onBufferingUpdate(MediaPlayer2 mp, long srcId, int percent) { }
+
+        /**
+         * Called to indicate the video size
+         *
+         * The video size (width and height) could be 0 if there was no video,
+         * no display surface was set, or the value was not determined yet.
+         *
+         * @param mp the MediaPlayer2 associated with this callback
+         * @param srcId the Id of this data source
+         * @param width the width of the video
+         * @param height the height of the video
+         */
+        public void onVideoSizeChanged(MediaPlayer2 mp, long srcId, int width, int height) { }
+
+        /**
+         * Called to indicate an avaliable timed text
+         *
+         * @param mp the MediaPlayer2 associated with this callback
+         * @param srcId the Id of this data source
+         * @param text the timed text sample which contains the text
+         *             needed to be displayed and the display format.
+         * @hide
+         */
+        public void onTimedText(MediaPlayer2 mp, long srcId, TimedText text) { }
+
+        /**
+         * Called to indicate avaliable timed metadata
+         * <p>
+         * This method will be called as timed metadata is extracted from the media,
+         * in the same order as it occurs in the media. The timing of this event is
+         * not controlled by the associated timestamp.
+         * <p>
+         * Currently only HTTP live streaming data URI's embedded with timed ID3 tags generates
+         * {@link TimedMetaData}.
+         *
+         * @see MediaPlayer2#selectTrack(int)
+         * @see MediaPlayer2.OnTimedMetaDataAvailableListener
+         * @see TimedMetaData
+         *
+         * @param mp the MediaPlayer2 associated with this callback
+         * @param srcId the Id of this data source
+         * @param data the timed metadata sample associated with this event
+         */
+        public void onTimedMetaDataAvailable(MediaPlayer2 mp, long srcId, TimedMetaData data) { }
+
+        /**
+         * Called to indicate an error.
+         *
+         * @param mp the MediaPlayer2 the error pertains to
+         * @param srcId the Id of this data source
+         * @param what the type of error that has occurred:
+         * <ul>
+         * <li>{@link #MEDIA_ERROR_UNKNOWN}
+         * </ul>
+         * @param extra an extra code, specific to the error. Typically
+         * implementation dependent.
+         * <ul>
+         * <li>{@link #MEDIA_ERROR_IO}
+         * <li>{@link #MEDIA_ERROR_MALFORMED}
+         * <li>{@link #MEDIA_ERROR_UNSUPPORTED}
+         * <li>{@link #MEDIA_ERROR_TIMED_OUT}
+         * <li><code>MEDIA_ERROR_SYSTEM (-2147483648)</code> - low-level system error.
+         * </ul>
+         */
+        public void onError(MediaPlayer2 mp, long srcId, int what, int extra) { }
+
+        /**
+         * Called to indicate an info or a warning.
+         *
+         * @param mp the MediaPlayer2 the info pertains to.
+         * @param srcId the Id of this data source
+         * @param what the type of info or warning.
+         * <ul>
+         * <li>{@link #MEDIA_INFO_UNKNOWN}
+         * <li>{@link #MEDIA_INFO_STARTED_AS_NEXT}
+         * <li>{@link #MEDIA_INFO_VIDEO_RENDERING_START}
+         * <li>{@link #MEDIA_INFO_AUDIO_RENDERING_START}
+         * <li>{@link #MEDIA_INFO_PLAYBACK_COMPLETE}
+         * <li>{@link #MEDIA_INFO_PLAYLIST_END}
+         * <li>{@link #MEDIA_INFO_PREPARED}
+         * <li>{@link #MEDIA_INFO_COMPLETE_CALL_PLAY}
+         * <li>{@link #MEDIA_INFO_COMPLETE_CALL_PAUSE}
+         * <li>{@link #MEDIA_INFO_COMPLETE_CALL_SEEK}
+         * <li>{@link #MEDIA_INFO_VIDEO_TRACK_LAGGING}
+         * <li>{@link #MEDIA_INFO_BUFFERING_START}
+         * <li>{@link #MEDIA_INFO_BUFFERING_END}
+         * <li><code>MEDIA_INFO_NETWORK_BANDWIDTH (703)</code> -
+         *     bandwidth information is available (as <code>extra</code> kbps)
+         * <li>{@link #MEDIA_INFO_BAD_INTERLEAVING}
+         * <li>{@link #MEDIA_INFO_NOT_SEEKABLE}
+         * <li>{@link #MEDIA_INFO_METADATA_UPDATE}
+         * <li>{@link #MEDIA_INFO_UNSUPPORTED_SUBTITLE}
+         * <li>{@link #MEDIA_INFO_SUBTITLE_TIMED_OUT}
+         * </ul>
+         * @param extra an extra code, specific to the info. Typically
+         * implementation dependent.
+         */
+        public void onInfo(MediaPlayer2 mp, long srcId, int what, int extra) { }
+    }
+
+    /**
+     * Register a callback to be invoked when the media source is ready
+     * for playback.
+     *
+     * @param eventCallback the callback that will be run
+     * @param executor the executor through which the callback should be invoked
+     */
+    public abstract void registerEventCallback(@NonNull @CallbackExecutor Executor executor,
+            @NonNull EventCallback eventCallback);
+
+    /**
+     * Unregisters an {@link EventCallback}.
+     *
+     * @param callback an {@link EventCallback} to unregister
+     */
+    public abstract void unregisterEventCallback(EventCallback callback);
+
+    /**
+     * Interface definition of a callback to be invoked when a
+     * track has data available.
+     *
+     * @hide
+     */
+    public interface OnSubtitleDataListener
+    {
+        public void onSubtitleData(MediaPlayer2 mp, SubtitleData data);
+    }
+
+    /**
+     * Register a callback to be invoked when a track has data available.
+     *
+     * @param listener the callback that will be run
+     *
+     * @hide
+     */
+    public void setOnSubtitleDataListener(OnSubtitleDataListener listener) { }
+
+
+    /* Do not change these values without updating their counterparts
+     * in include/media/mediaplayer2.h!
+     */
+    /** Unspecified media player error.
+     * @see android.media.MediaPlayer2.EventCallback.onError
+     */
+    public static final int MEDIA_ERROR_UNKNOWN = 1;
+
+    /** The video is streamed and its container is not valid for progressive
+     * playback i.e the video's index (e.g moov atom) is not at the start of the
+     * file.
+     * @see android.media.MediaPlayer2.EventCallback.onError
+     */
+    public static final int MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200;
+
+    /** File or network related operation errors. */
+    public static final int MEDIA_ERROR_IO = -1004;
+    /** Bitstream is not conforming to the related coding standard or file spec. */
+    public static final int MEDIA_ERROR_MALFORMED = -1007;
+    /** Bitstream is conforming to the related coding standard or file spec, but
+     * the media framework does not support the feature. */
+    public static final int MEDIA_ERROR_UNSUPPORTED = -1010;
+    /** Some operation takes too long to complete, usually more than 3-5 seconds. */
+    public static final int MEDIA_ERROR_TIMED_OUT = -110;
+
+    /** Unspecified low-level system error. This value originated from UNKNOWN_ERROR in
+     * system/core/include/utils/Errors.h
+     * @see android.media.MediaPlayer2.EventCallback.onError
+     * @hide
+     */
+    public static final int MEDIA_ERROR_SYSTEM = -2147483648;
+
+
+    /* Do not change these values without updating their counterparts
+     * in include/media/mediaplayer2.h!
+     */
+    /** Unspecified media player info.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_UNKNOWN = 1;
+
+    /** The player switched to this datas source because it is the
+     * next-to-be-played in the play list.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_STARTED_AS_NEXT = 2;
+
+    /** The player just pushed the very first video frame for rendering.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_VIDEO_RENDERING_START = 3;
+
+    /** The player just rendered the very first audio sample.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_AUDIO_RENDERING_START = 4;
+
+    /** The player just completed the playback of this data source.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_PLAYBACK_COMPLETE = 5;
+
+    /** The player just completed the playback of the full play list.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_PLAYLIST_END = 6;
+
+    /** The player just prepared a data source.
+     * This also serves as call completion notification for {@link #prepareAsync()}.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_PREPARED = 100;
+
+    /** The player just completed a call {@link #play()}.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_COMPLETE_CALL_PLAY = 101;
+
+    /** The player just completed a call {@link #pause()}.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_COMPLETE_CALL_PAUSE = 102;
+
+    /** The player just completed a call {@link #seekTo(long, int)}.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_COMPLETE_CALL_SEEK = 103;
+
+    /** The video is too complex for the decoder: it can't decode frames fast
+     *  enough. Possibly only the audio plays fine at this stage.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_VIDEO_TRACK_LAGGING = 700;
+
+    /** MediaPlayer2 is temporarily pausing playback internally in order to
+     * buffer more data.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_BUFFERING_START = 701;
+
+    /** MediaPlayer2 is resuming playback after filling buffers.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_BUFFERING_END = 702;
+
+    /** Estimated network bandwidth information (kbps) is available; currently this event fires
+     * simultaneously as {@link #MEDIA_INFO_BUFFERING_START} and {@link #MEDIA_INFO_BUFFERING_END}
+     * when playing network files.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     * @hide
+     */
+    public static final int MEDIA_INFO_NETWORK_BANDWIDTH = 703;
+
+    /** Bad interleaving means that a media has been improperly interleaved or
+     * not interleaved at all, e.g has all the video samples first then all the
+     * audio ones. Video is playing but a lot of disk seeks may be happening.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_BAD_INTERLEAVING = 800;
+
+    /** The media cannot be seeked (e.g live stream)
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_NOT_SEEKABLE = 801;
+
+    /** A new set of metadata is available.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_METADATA_UPDATE = 802;
+
+    /** A new set of external-only metadata is available.  Used by
+     *  JAVA framework to avoid triggering track scanning.
+     * @hide
+     */
+    public static final int MEDIA_INFO_EXTERNAL_METADATA_UPDATE = 803;
+
+    /** Informs that audio is not playing. Note that playback of the video
+     * is not interrupted.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_AUDIO_NOT_PLAYING = 804;
+
+    /** Informs that video is not playing. Note that playback of the audio
+     * is not interrupted.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_VIDEO_NOT_PLAYING = 805;
+
+    /** Failed to handle timed text track properly.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     *
+     * {@hide}
+     */
+    public static final int MEDIA_INFO_TIMED_TEXT_ERROR = 900;
+
+    /** Subtitle track was not supported by the media framework.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_UNSUPPORTED_SUBTITLE = 901;
+
+    /** Reading the subtitle track takes too long.
+     * @see android.media.MediaPlayer2.EventCallback.onInfo
+     */
+    public static final int MEDIA_INFO_SUBTITLE_TIMED_OUT = 902;
+
+
+    // Modular DRM begin
+
+    /**
+     * Interface definition of a callback to be invoked when the app
+     * can do DRM configuration (get/set properties) before the session
+     * is opened. This facilitates configuration of the properties, like
+     * 'securityLevel', which has to be set after DRM scheme creation but
+     * before the DRM session is opened.
+     *
+     * The only allowed DRM calls in this listener are {@code getDrmPropertyString}
+     * and {@code setDrmPropertyString}.
+     */
+    public interface OnDrmConfigHelper
+    {
+        /**
+         * Called to give the app the opportunity to configure DRM before the session is created
+         *
+         * @param mp the {@code MediaPlayer2} associated with this callback
+         */
+        public void onDrmConfig(MediaPlayer2 mp);
+    }
+
+    /**
+     * Register a callback to be invoked for configuration of the DRM object before
+     * the session is created.
+     * The callback will be invoked synchronously during the execution
+     * of {@link #prepareDrm(UUID uuid)}.
+     *
+     * @param listener the callback that will be run
+     */
+    public abstract void setOnDrmConfigHelper(OnDrmConfigHelper listener);
+
+    /**
+     * Interface definition for callbacks to be invoked when the player has the corresponding
+     * DRM events.
+     */
+    public abstract static class DrmEventCallback {
+        /**
+         * Called to indicate DRM info is available
+         *
+         * @param mp       the {@code MediaPlayer2} associated with this callback
+         * @param drmInfo  DRM info of the source including PSSH, and subset
+         *                 of crypto schemes supported by this device
+         */
+        public void onDrmInfo(MediaPlayer2 mp, DrmInfo drmInfo) { }
+
+        /**
+         * Called to notify the client that {@code prepareDrm} is finished and ready for key request/response.
+         *
+         * @param mp      the {@code MediaPlayer2} associated with this callback
+         * @param status  the result of DRM preparation which can be
+         * {@link #PREPARE_DRM_STATUS_SUCCESS},
+         * {@link #PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR},
+         * {@link #PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR}, or
+         * {@link #PREPARE_DRM_STATUS_PREPARATION_ERROR}.
+         */
+        public void onDrmPrepared(MediaPlayer2 mp, @PrepareDrmStatusCode int status) { }
+
+    }
+
+    /**
+     * Register a callback to be invoked when the media source is ready
+     * for playback.
+     *
+     * @param eventCallback the callback that will be run
+     * @param executor the executor through which the callback should be invoked
+     */
+    public abstract void registerDrmEventCallback(@NonNull @CallbackExecutor Executor executor,
+            @NonNull DrmEventCallback eventCallback);
+
+    /**
+     * Unregisters a {@link DrmEventCallback}.
+     *
+     * @param callback a {@link DrmEventCallback} to unregister
+     */
+    public abstract void unregisterDrmEventCallback(DrmEventCallback callback);
+
+    /**
+     * The status codes for {@link DrmEventCallback#onDrmPrepared} listener.
+     * <p>
+     *
+     * DRM preparation has succeeded.
+     */
+    public static final int PREPARE_DRM_STATUS_SUCCESS = 0;
+
+    /**
+     * The device required DRM provisioning but couldn't reach the provisioning server.
+     */
+    public static final int PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR = 1;
+
+    /**
+     * The device required DRM provisioning but the provisioning server denied the request.
+     */
+    public static final int PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR = 2;
+
+    /**
+     * The DRM preparation has failed .
+     */
+    public static final int PREPARE_DRM_STATUS_PREPARATION_ERROR = 3;
+
+
+    /** @hide */
+    @IntDef({
+        PREPARE_DRM_STATUS_SUCCESS,
+        PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR,
+        PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR,
+        PREPARE_DRM_STATUS_PREPARATION_ERROR,
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface PrepareDrmStatusCode {}
+
+    /**
+     * Retrieves the DRM Info associated with the current source
+     *
+     * @throws IllegalStateException if called before being prepared
+     */
+    public abstract DrmInfo getDrmInfo();
+
+    /**
+     * Prepares the DRM for the current source
+     * <p>
+     * If {@code OnDrmConfigHelper} is registered, it will be called during
+     * preparation to allow configuration of the DRM properties before opening the
+     * DRM session. Note that the callback is called synchronously in the thread that called
+     * {@code prepareDrm}. It should be used only for a series of {@code getDrmPropertyString}
+     * and {@code setDrmPropertyString} calls and refrain from any lengthy operation.
+     * <p>
+     * If the device has not been provisioned before, this call also provisions the device
+     * which involves accessing the provisioning server and can take a variable time to
+     * complete depending on the network connectivity.
+     * If {@code OnDrmPreparedListener} is registered, prepareDrm() runs in non-blocking
+     * mode by launching the provisioning in the background and returning. The listener
+     * will be called when provisioning and preparation has finished. If a
+     * {@code OnDrmPreparedListener} is not registered, prepareDrm() waits till provisioning
+     * and preparation has finished, i.e., runs in blocking mode.
+     * <p>
+     * If {@code OnDrmPreparedListener} is registered, it is called to indicate the DRM
+     * session being ready. The application should not make any assumption about its call
+     * sequence (e.g., before or after prepareDrm returns), or the thread context that will
+     * execute the listener (unless the listener is registered with a handler thread).
+     * <p>
+     *
+     * @param uuid The UUID of the crypto scheme. If not known beforehand, it can be retrieved
+     * from the source through {@code getDrmInfo} or registering a {@code onDrmInfoListener}.
+     *
+     * @throws IllegalStateException              if called before being prepared or the DRM was
+     *                                            prepared already
+     * @throws UnsupportedSchemeException         if the crypto scheme is not supported
+     * @throws ResourceBusyException              if required DRM resources are in use
+     * @throws ProvisioningNetworkErrorException  if provisioning is required but failed due to a
+     *                                            network error
+     * @throws ProvisioningServerErrorException   if provisioning is required but failed due to
+     *                                            the request denied by the provisioning server
+     */
+    public abstract void prepareDrm(@NonNull UUID uuid)
+            throws UnsupportedSchemeException, ResourceBusyException,
+                   ProvisioningNetworkErrorException, ProvisioningServerErrorException;
+
+    /**
+     * Releases the DRM session
+     * <p>
+     * The player has to have an active DRM session and be in stopped, or prepared
+     * state before this call is made.
+     * A {@code reset()} call will release the DRM session implicitly.
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session to release
+     */
+    public abstract void releaseDrm() throws NoDrmSchemeException;
+
+    /**
+     * A key request/response exchange occurs between the app and a license server
+     * to obtain or release keys used to decrypt encrypted content.
+     * <p>
+     * getKeyRequest() is used to obtain an opaque key request byte array that is
+     * delivered to the license server.  The opaque key request byte array is returned
+     * in KeyRequest.data.  The recommended URL to deliver the key request to is
+     * returned in KeyRequest.defaultUrl.
+     * <p>
+     * After the app has received the key request response from the server,
+     * it should deliver to the response to the DRM engine plugin using the method
+     * {@link #provideKeyResponse}.
+     *
+     * @param keySetId is the key-set identifier of the offline keys being released when keyType is
+     * {@link MediaDrm#KEY_TYPE_RELEASE}. It should be set to null for other key requests, when
+     * keyType is {@link MediaDrm#KEY_TYPE_STREAMING} or {@link MediaDrm#KEY_TYPE_OFFLINE}.
+     *
+     * @param initData is the container-specific initialization data when the keyType is
+     * {@link MediaDrm#KEY_TYPE_STREAMING} or {@link MediaDrm#KEY_TYPE_OFFLINE}. Its meaning is
+     * interpreted based on the mime type provided in the mimeType parameter.  It could
+     * contain, for example, the content ID, key ID or other data obtained from the content
+     * metadata that is required in generating the key request.
+     * When the keyType is {@link MediaDrm#KEY_TYPE_RELEASE}, it should be set to null.
+     *
+     * @param mimeType identifies the mime type of the content
+     *
+     * @param keyType specifies the type of the request. The request may be to acquire
+     * keys for streaming, {@link MediaDrm#KEY_TYPE_STREAMING}, or for offline content
+     * {@link MediaDrm#KEY_TYPE_OFFLINE}, or to release previously acquired
+     * keys ({@link MediaDrm#KEY_TYPE_RELEASE}), which are identified by a keySetId.
+     *
+     * @param optionalParameters are included in the key request message to
+     * allow a client application to provide additional message parameters to the server.
+     * This may be {@code null} if no additional parameters are to be sent.
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session
+     */
+    @NonNull
+    public abstract MediaDrm.KeyRequest getKeyRequest(@Nullable byte[] keySetId, @Nullable byte[] initData,
+            @Nullable String mimeType, @MediaDrm.KeyType int keyType,
+            @Nullable Map<String, String> optionalParameters)
+            throws NoDrmSchemeException;
+
+    /**
+     * A key response is received from the license server by the app, then it is
+     * provided to the DRM engine plugin using provideKeyResponse. When the
+     * response is for an offline key request, a key-set identifier is returned that
+     * can be used to later restore the keys to a new session with the method
+     * {@ link # restoreKeys}.
+     * When the response is for a streaming or release request, null is returned.
+     *
+     * @param keySetId When the response is for a release request, keySetId identifies
+     * the saved key associated with the release request (i.e., the same keySetId
+     * passed to the earlier {@ link # getKeyRequest} call. It MUST be null when the
+     * response is for either streaming or offline key requests.
+     *
+     * @param response the byte array response from the server
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session
+     * @throws DeniedByServerException if the response indicates that the
+     * server rejected the request
+     */
+    public abstract byte[] provideKeyResponse(@Nullable byte[] keySetId, @NonNull byte[] response)
+            throws NoDrmSchemeException, DeniedByServerException;
+
+    /**
+     * Restore persisted offline keys into a new session.  keySetId identifies the
+     * keys to load, obtained from a prior call to {@link #provideKeyResponse}.
+     *
+     * @param keySetId identifies the saved key set to restore
+     */
+    public abstract void restoreKeys(@NonNull byte[] keySetId)
+            throws NoDrmSchemeException;
+
+    /**
+     * Read a DRM engine plugin String property value, given the property name string.
+     * <p>
+     * @param propertyName the property name
+     *
+     * Standard fields names are:
+     * {@link MediaDrm#PROPERTY_VENDOR}, {@link MediaDrm#PROPERTY_VERSION},
+     * {@link MediaDrm#PROPERTY_DESCRIPTION}, {@link MediaDrm#PROPERTY_ALGORITHMS}
+     */
+    @NonNull
+    public abstract String getDrmPropertyString(@NonNull @MediaDrm.StringProperty String propertyName)
+            throws NoDrmSchemeException;
+
+    /**
+     * Set a DRM engine plugin String property value.
+     * <p>
+     * @param propertyName the property name
+     * @param value the property value
+     *
+     * Standard fields names are:
+     * {@link MediaDrm#PROPERTY_VENDOR}, {@link MediaDrm#PROPERTY_VERSION},
+     * {@link MediaDrm#PROPERTY_DESCRIPTION}, {@link MediaDrm#PROPERTY_ALGORITHMS}
+     */
+    public abstract void setDrmPropertyString(@NonNull @MediaDrm.StringProperty String propertyName,
+                                     @NonNull String value)
+            throws NoDrmSchemeException;
+
+    /**
+     * Encapsulates the DRM properties of the source.
+     */
+    public abstract static class DrmInfo {
+        /**
+         * Returns the PSSH info of the data source for each supported DRM scheme.
+         */
+        public abstract Map<UUID, byte[]> getPssh();
+
+        /**
+         * Returns the intersection of the data source and the device DRM schemes.
+         * It effectively identifies the subset of the source's DRM schemes which
+         * are supported by the device too.
+         */
+        public abstract List<UUID> getSupportedSchemes();
+    };  // DrmInfo
+
+    /**
+     * Thrown when a DRM method is called before preparing a DRM scheme through prepareDrm().
+     * Extends MediaDrm.MediaDrmException
+     */
+    public abstract static class NoDrmSchemeException extends MediaDrmException {
+          protected NoDrmSchemeException(String detailMessage) {
+              super(detailMessage);
+          }
+    }
+
+    /**
+     * Thrown when the device requires DRM provisioning but the provisioning attempt has
+     * failed due to a network error (Internet reachability, timeout, etc.).
+     * Extends MediaDrm.MediaDrmException
+     */
+    public abstract static class ProvisioningNetworkErrorException extends MediaDrmException {
+          protected ProvisioningNetworkErrorException(String detailMessage) {
+              super(detailMessage);
+          }
+    }
+
+    /**
+     * Thrown when the device requires DRM provisioning but the provisioning attempt has
+     * failed due to the provisioning server denying the request.
+     * Extends MediaDrm.MediaDrmException
+     */
+    public abstract static class ProvisioningServerErrorException extends MediaDrmException {
+          protected ProvisioningServerErrorException(String detailMessage) {
+              super(detailMessage);
+          }
+    }
+
+    public static final class MetricsConstants {
+        private MetricsConstants() {}
+
+        /**
+         * Key to extract the MIME type of the video track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String MIME_TYPE_VIDEO = "android.media.mediaplayer.video.mime";
+
+        /**
+         * Key to extract the codec being used to decode the video track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String CODEC_VIDEO = "android.media.mediaplayer.video.codec";
+
+        /**
+         * Key to extract the width (in pixels) of the video track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String WIDTH = "android.media.mediaplayer.width";
+
+        /**
+         * Key to extract the height (in pixels) of the video track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String HEIGHT = "android.media.mediaplayer.height";
+
+        /**
+         * Key to extract the count of video frames played
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String FRAMES = "android.media.mediaplayer.frames";
+
+        /**
+         * Key to extract the count of video frames dropped
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String FRAMES_DROPPED = "android.media.mediaplayer.dropped";
+
+        /**
+         * Key to extract the MIME type of the audio track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String MIME_TYPE_AUDIO = "android.media.mediaplayer.audio.mime";
+
+        /**
+         * Key to extract the codec being used to decode the audio track
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a String.
+         */
+        public static final String CODEC_AUDIO = "android.media.mediaplayer.audio.codec";
+
+        /**
+         * Key to extract the duration (in milliseconds) of the
+         * media being played
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a long.
+         */
+        public static final String DURATION = "android.media.mediaplayer.durationMs";
+
+        /**
+         * Key to extract the playing time (in milliseconds) of the
+         * media being played
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is a long.
+         */
+        public static final String PLAYING = "android.media.mediaplayer.playingMs";
+
+        /**
+         * Key to extract the count of errors encountered while
+         * playing the media
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String ERRORS = "android.media.mediaplayer.err";
+
+        /**
+         * Key to extract an (optional) error code detected while
+         * playing the media
+         * from the {@link MediaPlayer2#getMetrics} return value.
+         * The value is an integer.
+         */
+        public static final String ERROR_CODE = "android.media.mediaplayer.errcode";
+
+    }
+}
diff --git a/media/java/android/media/MediaPlayer2Impl.java b/media/java/android/media/MediaPlayer2Impl.java
new file mode 100644
index 0000000..86a285c
--- /dev/null
+++ b/media/java/android/media/MediaPlayer2Impl.java
@@ -0,0 +1,4899 @@
+/*
+ * Copyright 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.annotation.CallbackExecutor;
+import android.annotation.IntDef;
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.app.ActivityThread;
+import android.content.ContentProvider;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.res.AssetFileDescriptor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Message;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.os.PersistableBundle;
+import android.os.Process;
+import android.os.PowerManager;
+import android.os.SystemProperties;
+import android.provider.Settings;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.system.OsConstants;
+import android.util.Log;
+import android.util.Pair;
+import android.util.ArrayMap;
+import android.view.Surface;
+import android.view.SurfaceHolder;
+import android.widget.VideoView;
+import android.graphics.SurfaceTexture;
+import android.media.AudioManager;
+import android.media.MediaDrm;
+import android.media.MediaFormat;
+import android.media.MediaPlayer2;
+import android.media.MediaTimeProvider;
+import android.media.PlaybackParams;
+import android.media.SubtitleController;
+import android.media.SubtitleController.Anchor;
+import android.media.SubtitleData;
+import android.media.SubtitleTrack.RenderingWidget;
+import android.media.SyncParams;
+
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.util.Preconditions;
+
+import dalvik.system.CloseGuard;
+
+import libcore.io.IoBridge;
+import libcore.io.Streams;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileDescriptor;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.lang.AutoCloseable;
+import java.lang.Runnable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
+import java.net.CookieHandler;
+import java.net.CookieManager;
+import java.net.HttpCookie;
+import java.net.HttpURLConnection;
+import java.net.InetSocketAddress;
+import java.net.URL;
+import java.nio.ByteOrder;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.BitSet;
+import java.util.Collections;
+import java.util.concurrent.Executor;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Scanner;
+import java.util.Set;
+import java.util.UUID;
+import java.util.Vector;
+
+
+/**
+ * MediaPlayer2 class can be used to control playback
+ * of audio/video files and streams. An example on how to use the methods in
+ * this class can be found in {@link android.widget.VideoView}.
+ *
+ * <p>Topics covered here are:
+ * <ol>
+ * <li><a href="#StateDiagram">State Diagram</a>
+ * <li><a href="#Valid_and_Invalid_States">Valid and Invalid States</a>
+ * <li><a href="#Permissions">Permissions</a>
+ * <li><a href="#Callbacks">Register informational and error callbacks</a>
+ * </ol>
+ *
+ * <div class="special reference">
+ * <h3>Developer Guides</h3>
+ * <p>For more information about how to use MediaPlayer2, read the
+ * <a href="{@docRoot}guide/topics/media/mediaplayer.html">Media Playback</a> developer guide.</p>
+ * </div>
+ *
+ * <a name="StateDiagram"></a>
+ * <h3>State Diagram</h3>
+ *
+ * <p>Playback control of audio/video files and streams is managed as a state
+ * machine. The following diagram shows the life cycle and the states of a
+ * MediaPlayer2 object driven by the supported playback control operations.
+ * The ovals represent the states a MediaPlayer2 object may reside
+ * in. The arcs represent the playback control operations that drive the object
+ * state transition. There are two types of arcs. The arcs with a single arrow
+ * head represent synchronous method calls, while those with
+ * a double arrow head represent asynchronous method calls.</p>
+ *
+ * <p><img src="../../../images/mediaplayer_state_diagram.gif"
+ *         alt="MediaPlayer State diagram"
+ *         border="0" /></p>
+ *
+ * <p>From this state diagram, one can see that a MediaPlayer2 object has the
+ *    following states:</p>
+ * <ul>
+ *     <li>When a MediaPlayer2 object is just created using <code>new</code> or
+ *         after {@link #reset()} is called, it is in the <em>Idle</em> state; and after
+ *         {@link #close()} is called, it is in the <em>End</em> state. Between these
+ *         two states is the life cycle of the MediaPlayer2 object.
+ *         <ul>
+ *         <li>There is a subtle but important difference between a newly constructed
+ *         MediaPlayer2 object and the MediaPlayer2 object after {@link #reset()}
+ *         is called. It is a programming error to invoke methods such
+ *         as {@link #getCurrentPosition()},
+ *         {@link #getDuration()}, {@link #getVideoHeight()},
+ *         {@link #getVideoWidth()}, {@link #setAudioAttributes(AudioAttributes)},
+ *         {@link #setLooping(boolean)},
+ *         {@link #setVolume(float, float)}, {@link #pause()}, {@link #play()},
+ *         {@link #seekTo(long, int)}, {@link #prepare()} or
+ *         {@link #prepareAsync()} in the <em>Idle</em> state for both cases. If any of these
+ *         methods is called right after a MediaPlayer2 object is constructed,
+ *         the user supplied callback method OnErrorListener.onError() won't be
+ *         called by the internal player engine and the object state remains
+ *         unchanged; but if these methods are called right after {@link #reset()},
+ *         the user supplied callback method OnErrorListener.onError() will be
+ *         invoked by the internal player engine and the object will be
+ *         transfered to the <em>Error</em> state. </li>
+ *         <li>It is also recommended that once
+ *         a MediaPlayer2 object is no longer being used, call {@link #close()} immediately
+ *         so that resources used by the internal player engine associated with the
+ *         MediaPlayer2 object can be released immediately. Resource may include
+ *         singleton resources such as hardware acceleration components and
+ *         failure to call {@link #close()} may cause subsequent instances of
+ *         MediaPlayer2 objects to fallback to software implementations or fail
+ *         altogether. Once the MediaPlayer2
+ *         object is in the <em>End</em> state, it can no longer be used and
+ *         there is no way to bring it back to any other state. </li>
+ *         <li>Furthermore,
+ *         the MediaPlayer2 objects created using <code>new</code> is in the
+ *         <em>Idle</em> state.
+ *         </li>
+ *         </ul>
+ *         </li>
+ *     <li>In general, some playback control operation may fail due to various
+ *         reasons, such as unsupported audio/video format, poorly interleaved
+ *         audio/video, resolution too high, streaming timeout, and the like.
+ *         Thus, error reporting and recovery is an important concern under
+ *         these circumstances. Sometimes, due to programming errors, invoking a playback
+ *         control operation in an invalid state may also occur. Under all these
+ *         error conditions, the internal player engine invokes a user supplied
+ *         EventCallback.onError() method if an EventCallback has been
+ *         registered beforehand via
+ *         {@link #registerEventCallback(Executor, EventCallback)}.
+ *         <ul>
+ *         <li>It is important to note that once an error occurs, the
+ *         MediaPlayer2 object enters the <em>Error</em> state (except as noted
+ *         above), even if an error listener has not been registered by the application.</li>
+ *         <li>In order to reuse a MediaPlayer2 object that is in the <em>
+ *         Error</em> state and recover from the error,
+ *         {@link #reset()} can be called to restore the object to its <em>Idle</em>
+ *         state.</li>
+ *         <li>It is good programming practice to have your application
+ *         register a OnErrorListener to look out for error notifications from
+ *         the internal player engine.</li>
+ *         <li>IllegalStateException is
+ *         thrown to prevent programming errors such as calling {@link #prepare()},
+ *         {@link #prepareAsync()}, {@link #setDataSource(DataSourceDesc)}, or
+ *         {@code setPlaylist} methods in an invalid state. </li>
+ *         </ul>
+ *         </li>
+ *     <li>Calling
+ *         {@link #setDataSource(DataSourceDesc)}, or
+ *         {@code setPlaylist} transfers a
+ *         MediaPlayer2 object in the <em>Idle</em> state to the
+ *         <em>Initialized</em> state.
+ *         <ul>
+ *         <li>An IllegalStateException is thrown if
+ *         setDataSource() or setPlaylist() is called in any other state.</li>
+ *         <li>It is good programming
+ *         practice to always look out for <code>IllegalArgumentException</code>
+ *         and <code>IOException</code> that may be thrown from
+ *         <code>setDataSource</code> and <code>setPlaylist</code> methods.</li>
+ *         </ul>
+ *         </li>
+ *     <li>A MediaPlayer2 object must first enter the <em>Prepared</em> state
+ *         before playback can be started.
+ *         <ul>
+ *         <li>There are two ways (synchronous vs.
+ *         asynchronous) that the <em>Prepared</em> state can be reached:
+ *         either a call to {@link #prepare()} (synchronous) which
+ *         transfers the object to the <em>Prepared</em> state once the method call
+ *         returns, or a call to {@link #prepareAsync()} (asynchronous) which
+ *         first transfers the object to the <em>Preparing</em> state after the
+ *         call returns (which occurs almost right way) while the internal
+ *         player engine continues working on the rest of preparation work
+ *         until the preparation work completes. When the preparation completes or when {@link #prepare()} call returns,
+ *         the internal player engine then calls a user supplied callback method,
+ *         onPrepared() of the EventCallback interface, if an
+ *         EventCallback is registered beforehand via {@link
+ *         #registerEventCallback(Executor, EventCallback)}.</li>
+ *         <li>It is important to note that
+ *         the <em>Preparing</em> state is a transient state, and the behavior
+ *         of calling any method with side effect while a MediaPlayer2 object is
+ *         in the <em>Preparing</em> state is undefined.</li>
+ *         <li>An IllegalStateException is
+ *         thrown if {@link #prepare()} or {@link #prepareAsync()} is called in
+ *         any other state.</li>
+ *         <li>While in the <em>Prepared</em> state, properties
+ *         such as audio/sound volume, screenOnWhilePlaying, looping can be
+ *         adjusted by invoking the corresponding set methods.</li>
+ *         </ul>
+ *         </li>
+ *     <li>To start the playback, {@link #play()} must be called. After
+ *         {@link #play()} returns successfully, the MediaPlayer2 object is in the
+ *         <em>Started</em> state. {@link #isPlaying()} can be called to test
+ *         whether the MediaPlayer2 object is in the <em>Started</em> state.
+ *         <ul>
+ *         <li>While in the <em>Started</em> state, the internal player engine calls
+ *         a user supplied EventCallback.onBufferingUpdate() callback
+ *         method if an EventCallback has been registered beforehand
+ *         via {@link #registerEventCallback(Executor, EventCallback)}.
+ *         This callback allows applications to keep track of the buffering status
+ *         while streaming audio/video.</li>
+ *         <li>Calling {@link #play()} has not effect
+ *         on a MediaPlayer2 object that is already in the <em>Started</em> state.</li>
+ *         </ul>
+ *         </li>
+ *     <li>Playback can be paused and stopped, and the current playback position
+ *         can be adjusted. Playback can be paused via {@link #pause()}. When the call to
+ *         {@link #pause()} returns, the MediaPlayer2 object enters the
+ *         <em>Paused</em> state. Note that the transition from the <em>Started</em>
+ *         state to the <em>Paused</em> state and vice versa happens
+ *         asynchronously in the player engine. It may take some time before
+ *         the state is updated in calls to {@link #isPlaying()}, and it can be
+ *         a number of seconds in the case of streamed content.
+ *         <ul>
+ *         <li>Calling {@link #play()} to resume playback for a paused
+ *         MediaPlayer2 object, and the resumed playback
+ *         position is the same as where it was paused. When the call to
+ *         {@link #play()} returns, the paused MediaPlayer2 object goes back to
+ *         the <em>Started</em> state.</li>
+ *         <li>Calling {@link #pause()} has no effect on
+ *         a MediaPlayer2 object that is already in the <em>Paused</em> state.</li>
+ *         </ul>
+ *         </li>
+ *     <li>The playback position can be adjusted with a call to
+ *         {@link #seekTo(long, int)}.
+ *         <ul>
+ *         <li>Although the asynchronuous {@link #seekTo(long, int)}
+ *         call returns right away, the actual seek operation may take a while to
+ *         finish, especially for audio/video being streamed. When the actual
+ *         seek operation completes, the internal player engine calls a user
+ *         supplied EventCallback.onSeekComplete() if an EventCallback
+ *         has been registered beforehand via
+ *         {@link #registerEventCallback(Executor, EventCallback)}.</li>
+ *         <li>Please
+ *         note that {@link #seekTo(long, int)} can also be called in the other states,
+ *         such as <em>Prepared</em>, <em>Paused</em> and <em>PlaybackCompleted
+ *         </em> state. When {@link #seekTo(long, int)} is called in those states,
+ *         one video frame will be displayed if the stream has video and the requested
+ *         position is valid.
+ *         </li>
+ *         <li>Furthermore, the actual current playback position
+ *         can be retrieved with a call to {@link #getCurrentPosition()}, which
+ *         is helpful for applications such as a Music player that need to keep
+ *         track of the playback progress.</li>
+ *         </ul>
+ *         </li>
+ *     <li>When the playback reaches the end of stream, the playback completes.
+ *         <ul>
+ *         <li>If the looping mode was being set to <var>true</var>with
+ *         {@link #setLooping(boolean)}, the MediaPlayer2 object shall remain in
+ *         the <em>Started</em> state.</li>
+ *         <li>If the looping mode was set to <var>false
+ *         </var>, the player engine calls a user supplied callback method,
+ *         EventCallback.onCompletion(), if an EventCallback is registered
+ *         beforehand via {@link #registerEventCallback(Executor, EventCallback)}.
+ *         The invoke of the callback signals that the object is now in the <em>
+ *         PlaybackCompleted</em> state.</li>
+ *         <li>While in the <em>PlaybackCompleted</em>
+ *         state, calling {@link #play()} can restart the playback from the
+ *         beginning of the audio/video source.</li>
+ * </ul>
+ *
+ *
+ * <a name="Valid_and_Invalid_States"></a>
+ * <h3>Valid and invalid states</h3>
+ *
+ * <table border="0" cellspacing="0" cellpadding="0">
+ * <tr><td>Method Name </p></td>
+ *     <td>Valid Sates </p></td>
+ *     <td>Invalid States </p></td>
+ *     <td>Comments </p></td></tr>
+ * <tr><td>attachAuxEffect </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Error} </p></td>
+ *     <td>This method must be called after setDataSource or setPlaylist.
+ *     Calling it does not change the object state. </p></td></tr>
+ * <tr><td>getAudioSessionId </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>getCurrentPosition </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted} </p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>getDuration </p></td>
+ *     <td>{Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Initialized, Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>getVideoHeight </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change the
+ *         state. Calling this method in an invalid state transfers the object
+ *         to the <em>Error</em> state.  </p></td></tr>
+ * <tr><td>getVideoWidth </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>isPlaying </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>pause </p></td>
+ *     <td>{Started, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Prepared, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Paused</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>prepare </p></td>
+ *     <td>{Initialized, Stopped} </p></td>
+ *     <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Prepared</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>prepareAsync </p></td>
+ *     <td>{Initialized, Stopped} </p></td>
+ *     <td>{Idle, Prepared, Started, Paused, PlaybackCompleted, Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Preparing</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>release </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>After {@link #close()}, the object is no longer available. </p></td></tr>
+ * <tr><td>reset </p></td>
+ *     <td>{Idle, Initialized, Prepared, Started, Paused, Stopped,
+ *         PlaybackCompleted, Error}</p></td>
+ *     <td>{}</p></td>
+ *     <td>After {@link #reset()}, the object is like being just created.</p></td></tr>
+ * <tr><td>seekTo </p></td>
+ *     <td>{Prepared, Started, Paused, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Initialized, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an invalid state transfers the
+ *         object to the <em>Error</em> state. </p></td></tr>
+ * <tr><td>setAudioAttributes </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state. In order for the
+ *         target audio attributes type to become effective, this method must be called before
+ *         prepare() or prepareAsync().</p></td></tr>
+ * <tr><td>setAudioSessionId </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>This method must be called in idle state as the audio session ID must be known before
+ *         calling setDataSource or setPlaylist. Calling it does not change the object
+ *         state. </p></td></tr>
+ * <tr><td>setAudioStreamType (deprecated)</p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state. In order for the
+ *         target audio stream type to become effective, this method must be called before
+ *         prepare() or prepareAsync().</p></td></tr>
+ * <tr><td>setAuxEffectSendLevel </p></td>
+ *     <td>any</p></td>
+ *     <td>{} </p></td>
+ *     <td>Calling this method does not change the object state. </p></td></tr>
+ * <tr><td>setDataSource </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Initialized</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>setPlaylist </p></td>
+ *     <td>{Idle} </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted,
+ *          Error} </p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Initialized</em> state. Calling this method in an
+ *         invalid state throws an IllegalStateException.</p></td></tr>
+ * <tr><td>setDisplay </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setSurface </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setVideoScalingMode </p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, Stopped, PlaybackCompleted} </p></td>
+ *     <td>{Idle, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>setLooping </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *         PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state does not change
+ *         the state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>isLooping </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>registerDrmEventCallback </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>registerEventCallback </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state. </p></td></tr>
+ * <tr><td>setPlaybackParams</p></td>
+ *     <td>{Initialized, Prepared, Started, Paused, PlaybackCompleted, Error}</p></td>
+ *     <td>{Idle, Stopped} </p></td>
+ *     <td>This method will change state in some cases, depending on when it's called.
+ *         </p></td></tr>
+ * <tr><td>setScreenOnWhilePlaying</></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state.  </p></td></tr>
+ * <tr><td>setVolume </p></td>
+ *     <td>{Idle, Initialized, Stopped, Prepared, Started, Paused,
+ *          PlaybackCompleted}</p></td>
+ *     <td>{Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.
+ * <tr><td>setWakeMode </p></td>
+ *     <td>any </p></td>
+ *     <td>{} </p></td>
+ *     <td>This method can be called in any state and calling it does not change
+ *         the object state.</p></td></tr>
+ * <tr><td>start </p></td>
+ *     <td>{Prepared, Started, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Stopped, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Started</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>stop </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method in a valid state transfers the
+ *         object to the <em>Stopped</em> state. Calling this method in an
+ *         invalid state transfers the object to the <em>Error</em> state.</p></td></tr>
+ * <tr><td>getTrackInfo </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>addTimedTextSource </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>selectTrack </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ * <tr><td>deselectTrack </p></td>
+ *     <td>{Prepared, Started, Stopped, Paused, PlaybackCompleted}</p></td>
+ *     <td>{Idle, Initialized, Error}</p></td>
+ *     <td>Successful invoke of this method does not change the state.</p></td></tr>
+ *
+ * </table>
+ *
+ * <a name="Permissions"></a>
+ * <h3>Permissions</h3>
+ * <p>One may need to declare a corresponding WAKE_LOCK permission {@link
+ * android.R.styleable#AndroidManifestUsesPermission &lt;uses-permission&gt;}
+ * element.
+ *
+ * <p>This class requires the {@link android.Manifest.permission#INTERNET} permission
+ * when used with network-based content.
+ *
+ * <a name="Callbacks"></a>
+ * <h3>Callbacks</h3>
+ * <p>Applications may want to register for informational and error
+ * events in order to be informed of some internal state update and
+ * possible runtime errors during playback or streaming. Registration for
+ * these events is done by properly setting the appropriate listeners (via calls
+ * to
+ * {@link #registerEventCallback(Executor, EventCallback)},
+ * {@link #registerDrmEventCallback(Executor, DrmEventCallback)}).
+ * In order to receive the respective callback
+ * associated with these listeners, applications are required to create
+ * MediaPlayer2 objects on a thread with its own Looper running (main UI
+ * thread by default has a Looper running).
+ *
+ * @hide
+ */
+public final class MediaPlayer2Impl extends MediaPlayer2 {
+    static {
+        System.loadLibrary("media2_jni");
+        native_init();
+    }
+
+    private final static String TAG = "MediaPlayer2Impl";
+
+    private long mNativeContext; // accessed by native methods
+    private long mNativeSurfaceTexture;  // accessed by native methods
+    private int mListenerContext; // accessed by native methods
+    private SurfaceHolder mSurfaceHolder;
+    private EventHandler mEventHandler;
+    private PowerManager.WakeLock mWakeLock = null;
+    private boolean mScreenOnWhilePlaying;
+    private boolean mStayAwake;
+    private int mStreamType = AudioManager.USE_DEFAULT_STREAM_TYPE;
+    private int mUsage = -1;
+    private boolean mBypassInterruptionPolicy;
+    private final CloseGuard mGuard = CloseGuard.get();
+
+    private List<DataSourceDesc> mPlaylist;
+    private int mPLCurrentIndex = 0;
+    private int mPLNextIndex = -1;
+    private int mLoopingMode = LOOPING_MODE_NONE;
+
+    // Modular DRM
+    private UUID mDrmUUID;
+    private final Object mDrmLock = new Object();
+    private DrmInfoImpl mDrmInfoImpl;
+    private MediaDrm mDrmObj;
+    private byte[] mDrmSessionId;
+    private boolean mDrmInfoResolved;
+    private boolean mActiveDrmScheme;
+    private boolean mDrmConfigAllowed;
+    private boolean mDrmProvisioningInProgress;
+    private boolean mPrepareDrmInProgress;
+    private ProvisioningThread mDrmProvisioningThread;
+
+    /**
+     * Default constructor.
+     * <p>When done with the MediaPlayer2Impl, you should call  {@link #close()},
+     * to free the resources. If not released, too many MediaPlayer2Impl instances may
+     * result in an exception.</p>
+     */
+    public MediaPlayer2Impl() {
+        Looper looper;
+        if ((looper = Looper.myLooper()) != null) {
+            mEventHandler = new EventHandler(this, looper);
+        } else if ((looper = Looper.getMainLooper()) != null) {
+            mEventHandler = new EventHandler(this, looper);
+        } else {
+            mEventHandler = null;
+        }
+
+        mTimeProvider = new TimeProvider(this);
+        mOpenSubtitleSources = new Vector<InputStream>();
+        mGuard.open("close");
+
+        /* Native setup requires a weak reference to our object.
+         * It's easier to create it here than in C++.
+         */
+        native_setup(new WeakReference<MediaPlayer2Impl>(this));
+    }
+
+    /*
+     * Update the MediaPlayer2Impl SurfaceTexture.
+     * Call after setting a new display surface.
+     */
+    private native void _setVideoSurface(Surface surface);
+
+    /* Do not change these values (starting with INVOKE_ID) without updating
+     * their counterparts in include/media/mediaplayer2.h!
+     */
+    private static final int INVOKE_ID_GET_TRACK_INFO = 1;
+    private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE = 2;
+    private static final int INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3;
+    private static final int INVOKE_ID_SELECT_TRACK = 4;
+    private static final int INVOKE_ID_DESELECT_TRACK = 5;
+    private static final int INVOKE_ID_SET_VIDEO_SCALE_MODE = 6;
+    private static final int INVOKE_ID_GET_SELECTED_TRACK = 7;
+
+    /**
+     * Create a request parcel which can be routed to the native media
+     * player using {@link #invoke(Parcel, Parcel)}. The Parcel
+     * returned has the proper InterfaceToken set. The caller should
+     * not overwrite that token, i.e it can only append data to the
+     * Parcel.
+     *
+     * @return A parcel suitable to hold a request for the native
+     * player.
+     * {@hide}
+     */
+    @Override
+    public Parcel newRequest() {
+        Parcel parcel = Parcel.obtain();
+        return parcel;
+    }
+
+    /**
+     * Invoke a generic method on the native player using opaque
+     * parcels for the request and reply. Both payloads' format is a
+     * convention between the java caller and the native player.
+     * Must be called after setDataSource or setPlaylist to make sure a native player
+     * exists. On failure, a RuntimeException is thrown.
+     *
+     * @param request Parcel with the data for the extension. The
+     * caller must use {@link #newRequest()} to get one.
+     *
+     * @param reply Output parcel with the data returned by the
+     * native player.
+     * {@hide}
+     */
+    @Override
+    public void invoke(Parcel request, Parcel reply) {
+        int retcode = native_invoke(request, reply);
+        reply.setDataPosition(0);
+        if (retcode != 0) {
+            throw new RuntimeException("failure code: " + retcode);
+        }
+    }
+
+    /**
+     * Sets the {@link SurfaceHolder} to use for displaying the video
+     * portion of the media.
+     *
+     * Either a surface holder or surface must be set if a display or video sink
+     * is needed.  Not calling this method or {@link #setSurface(Surface)}
+     * when playing back a video will result in only the audio track being played.
+     * A null surface holder or surface will result in only the audio track being
+     * played.
+     *
+     * @param sh the SurfaceHolder to use for video display
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     * @hide
+     */
+    @Override
+    public void setDisplay(SurfaceHolder sh) {
+        mSurfaceHolder = sh;
+        Surface surface;
+        if (sh != null) {
+            surface = sh.getSurface();
+        } else {
+            surface = null;
+        }
+        _setVideoSurface(surface);
+        updateSurfaceScreenOn();
+    }
+
+    /**
+     * Sets the {@link Surface} to be used as the sink for the video portion of
+     * the media. This is similar to {@link #setDisplay(SurfaceHolder)}, but
+     * does not support {@link #setScreenOnWhilePlaying(boolean)}.  Setting a
+     * Surface will un-set any Surface or SurfaceHolder that was previously set.
+     * A null surface will result in only the audio track being played.
+     *
+     * If the Surface sends frames to a {@link SurfaceTexture}, the timestamps
+     * returned from {@link SurfaceTexture#getTimestamp()} will have an
+     * unspecified zero point.  These timestamps cannot be directly compared
+     * between different media sources, different instances of the same media
+     * source, or multiple runs of the same program.  The timestamp is normally
+     * monotonically increasing and is unaffected by time-of-day adjustments,
+     * but it is reset when the position is set.
+     *
+     * @param surface The {@link Surface} to be used for the video portion of
+     * the media.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     */
+    @Override
+    public void setSurface(Surface surface) {
+        if (mScreenOnWhilePlaying && surface != null) {
+            Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective for Surface");
+        }
+        mSurfaceHolder = null;
+        _setVideoSurface(surface);
+        updateSurfaceScreenOn();
+    }
+
+    /**
+     * Sets video scaling mode. To make the target video scaling mode
+     * effective during playback, this method must be called after
+     * data source is set. If not called, the default video
+     * scaling mode is {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}.
+     *
+     * <p> The supported video scaling modes are:
+     * <ul>
+     * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT}
+     * <li> {@link #VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING}
+     * </ul>
+     *
+     * @param mode target video scaling mode. Must be one of the supported
+     * video scaling modes; otherwise, IllegalArgumentException will be thrown.
+     *
+     * @see MediaPlayer2#VIDEO_SCALING_MODE_SCALE_TO_FIT
+     * @see MediaPlayer2#VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
+     * @hide
+     */
+    @Override
+    public void setVideoScalingMode(int mode) {
+        if (!isVideoScalingModeSupported(mode)) {
+            final String msg = "Scaling mode " + mode + " is not supported";
+            throw new IllegalArgumentException(msg);
+        }
+        Parcel request = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        try {
+            request.writeInt(INVOKE_ID_SET_VIDEO_SCALE_MODE);
+            request.writeInt(mode);
+            invoke(request, reply);
+        } finally {
+            request.recycle();
+            reply.recycle();
+        }
+    }
+
+    /**
+     * Discards all pending commands.
+     */
+    @Override
+    public void clearPendingCommands() {
+    }
+
+    /**
+     * Sets the data source as described by a DataSourceDesc.
+     *
+     * @param dsd the descriptor of data source you want to play
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws NullPointerException if dsd is null
+     */
+    @Override
+    public void setDataSource(@NonNull DataSourceDesc dsd) throws IOException {
+        Preconditions.checkNotNull(dsd, "the DataSourceDesc cannot be null");
+        mPlaylist = Collections.synchronizedList(new ArrayList<DataSourceDesc>(1));
+        mPlaylist.add(dsd);
+        mPLCurrentIndex = 0;
+        setDataSourcePriv(dsd);
+    }
+
+    /**
+     * Gets the current data source as described by a DataSourceDesc.
+     *
+     * @return the current DataSourceDesc
+     */
+    @Override
+    public DataSourceDesc getCurrentDataSource() {
+        if (mPlaylist == null) {
+            return null;
+        }
+        return mPlaylist.get(mPLCurrentIndex);
+    }
+
+    /**
+     * Sets the play list.
+     *
+     * If startIndex falls outside play list range, it will be clamped to the nearest index
+     * in the play list.
+     *
+     * @param pl the play list of data source you want to play
+     * @param startIndex the index of the DataSourceDesc in the play list you want to play first
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if pl is null or empty, or pl contains null DataSourceDesc
+     */
+    @Override
+    public void setPlaylist(@NonNull List<DataSourceDesc> pl, int startIndex)
+            throws IOException {
+        if (pl == null || pl.size() == 0) {
+            throw new IllegalArgumentException("play list cannot be null or empty.");
+        }
+        HashSet ids = new HashSet(pl.size());
+        for (DataSourceDesc dsd : pl) {
+            if (dsd == null) {
+                throw new IllegalArgumentException("DataSourceDesc in play list cannot be null.");
+            }
+            if (ids.add(dsd.getId()) == false) {
+                throw new IllegalArgumentException("DataSourceDesc Id in play list should be unique.");
+            }
+        }
+
+        if (startIndex < 0) {
+            startIndex = 0;
+        } else if (startIndex >= pl.size()) {
+            startIndex = pl.size() - 1;
+        }
+
+        mPlaylist = Collections.synchronizedList(new ArrayList(pl));
+        mPLCurrentIndex = startIndex;
+        setDataSourcePriv(mPlaylist.get(startIndex));
+        // TODO: handle the preparation of next source in the play list.
+        // It should be processed after current source is prepared.
+    }
+
+    /**
+     * Gets a copy of the play list.
+     *
+     * @return a copy of the play list used by {@link MediaPlayer2}
+     */
+    @Override
+    public List<DataSourceDesc> getPlaylist() {
+        if (mPlaylist == null) {
+            return null;
+        }
+        return new ArrayList(mPlaylist);
+    }
+
+    /**
+     * Sets the index of current DataSourceDesc in the play list to be played.
+     *
+     * @param index the index of DataSourceDesc in the play list you want to play
+     * @throws IllegalArgumentException if the play list is null
+     * @throws NullPointerException if index is outside play list range
+     */
+    @Override
+    public void setCurrentPlaylistItem(int index) {
+        if (mPlaylist == null) {
+            throw new IllegalArgumentException("play list has not been set yet.");
+        }
+        if (index < 0 || index >= mPlaylist.size()) {
+            throw new IndexOutOfBoundsException("index is out of play list range.");
+        }
+
+        if (index == mPLCurrentIndex) {
+            return;
+        }
+
+        // TODO: in playing state, stop current source and start to play source of index.
+        mPLCurrentIndex = index;
+    }
+
+    /**
+     * Sets the index of next-to-be-played DataSourceDesc in the play list.
+     *
+     * @param index the index of next-to-be-played DataSourceDesc in the play list
+     * @throws IllegalArgumentException if the play list is null
+     * @throws NullPointerException if index is outside play list range
+     */
+    @Override
+    public void setNextPlaylistItem(int index) {
+        if (mPlaylist == null) {
+            throw new IllegalArgumentException("play list has not been set yet.");
+        }
+        if (index < 0 || index >= mPlaylist.size()) {
+            throw new IndexOutOfBoundsException("index is out of play list range.");
+        }
+
+        if (index == mPLNextIndex) {
+            return;
+        }
+
+        // TODO: prepare the new next-to-be-played DataSourceDesc
+        mPLNextIndex = index;
+    }
+
+    /**
+     * Gets the current index of play list.
+     *
+     * @return the index of the current DataSourceDesc in the play list
+     */
+    @Override
+    public int getCurrentPlaylistItemIndex() {
+        return mPLCurrentIndex;
+    }
+
+    /**
+     * Sets the looping mode of the play list.
+     * The mode shall be one of {@link #LOOPING_MODE_NONE}, {@link #LOOPING_MODE_FULL},
+     * {@link #LOOPING_MODE_SINGLE}, {@link #LOOPING_MODE_SHUFFLE}.
+     *
+     * @param mode the mode in which the play list will be played
+     * @throws IllegalArgumentException if mode is not supported
+     */
+    @Override
+    public void setLoopingMode(@LoopingMode int mode) {
+        if (mode != LOOPING_MODE_NONE
+            && mode != LOOPING_MODE_FULL
+            && mode != LOOPING_MODE_SINGLE
+            && mode != LOOPING_MODE_SHUFFLE) {
+            throw new IllegalArgumentException("mode is not supported.");
+        }
+        mLoopingMode = mode;
+        if (mPlaylist == null) {
+            return;
+        }
+
+        // TODO: handle the new mode if necessary.
+    }
+
+    /**
+     * Gets the looping mode of play list.
+     *
+     * @return the looping mode of the play list
+     */
+    @Override
+    public int getLoopingMode() {
+        return mPLCurrentIndex;
+    }
+
+    /**
+     * Moves the DataSourceDesc at indexFrom in the play list to indexTo.
+     *
+     * @throws IllegalArgumentException if the play list is null
+     * @throws IndexOutOfBoundsException if indexFrom or indexTo is outside play list range
+     */
+    @Override
+    public void movePlaylistItem(int indexFrom, int indexTo) {
+        if (mPlaylist == null) {
+            throw new IllegalArgumentException("play list has not been set yet.");
+        }
+        // TODO: move the DataSourceDesc from indexFrom to indexTo.
+    }
+
+    /**
+     * Removes the DataSourceDesc at index in the play list.
+     *
+     * If index is same as the current index of the play list, current DataSourceDesc
+     * will be stopped and playback moves to next source in the list.
+     *
+     * @return the removed DataSourceDesc at index in the play list
+     * @throws IllegalArgumentException if the play list is null
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     */
+    @Override
+    public DataSourceDesc removePlaylistItem(int index) {
+        if (mPlaylist == null) {
+            throw new IllegalArgumentException("play list has not been set yet.");
+        }
+
+        DataSourceDesc oldDsd = mPlaylist.remove(index);
+        // TODO: if index == mPLCurrentIndex, stop current source and move to next one.
+        // if index == mPLNextIndex, prepare the new next-to-be-played source.
+        return oldDsd;
+    }
+
+    /**
+     * Inserts the DataSourceDesc to the play list at position index.
+     *
+     * This will not change the DataSourceDesc currently being played.
+     * If index is less than or equal to the current index of the play list,
+     * the current index of the play list will be incremented correspondingly.
+     *
+     * @param index the index you want to add dsd to the play list
+     * @param dsd the descriptor of data source you want to add to the play list
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     * @throws NullPointerException if dsd is null
+     */
+    @Override
+    public void addPlaylistItem(int index, DataSourceDesc dsd) {
+        Preconditions.checkNotNull(dsd, "the DataSourceDesc cannot be null");
+
+        if (mPlaylist == null) {
+            if (index == 0) {
+                mPlaylist = Collections.synchronizedList(new ArrayList<DataSourceDesc>());
+                mPlaylist.add(dsd);
+                mPLCurrentIndex = 0;
+                return;
+            }
+            throw new IllegalArgumentException("index should be 0 for first DataSourceDesc.");
+        }
+
+        long id = dsd.getId();
+        for (DataSourceDesc pldsd : mPlaylist) {
+            if (id == pldsd.getId()) {
+                throw new IllegalArgumentException("Id of dsd already exists in the play list.");
+            }
+        }
+
+        mPlaylist.add(index, dsd);
+        if (index <= mPLCurrentIndex) {
+            ++mPLCurrentIndex;
+        }
+    }
+
+    /**
+     * replaces the DataSourceDesc at index in the play list with given dsd.
+     *
+     * When index is same as the current index of the play list, the current source
+     * will be stopped and the new source will be played, except that if new
+     * and old source only differ on end position and current media position is
+     * smaller then the new end position.
+     *
+     * This will not change the DataSourceDesc currently being played.
+     * If index is less than or equal to the current index of the play list,
+     * the current index of the play list will be incremented correspondingly.
+     *
+     * @param index the index you want to add dsd to the play list
+     * @param dsd the descriptor of data source you want to add to the play list
+     * @throws IndexOutOfBoundsException if index is outside play list range
+     * @throws NullPointerException if dsd is null
+     */
+    @Override
+    public DataSourceDesc editPlaylistItem(int index, DataSourceDesc dsd) {
+        Preconditions.checkNotNull(dsd, "the DataSourceDesc cannot be null");
+        Preconditions.checkNotNull(mPlaylist, "the play list cannot be null");
+
+        long id = dsd.getId();
+        for (int i = 0; i < mPlaylist.size(); ++i) {
+            if (i == index) {
+                continue;
+            }
+            if (id == mPlaylist.get(i).getId()) {
+                throw new IllegalArgumentException("Id of dsd already exists in the play list.");
+            }
+        }
+
+        // TODO: if needed, stop playback of current source, and start new dsd.
+        DataSourceDesc oldDsd = mPlaylist.set(index, dsd);
+        return mPlaylist.set(index, dsd);
+    }
+
+    private void setDataSourcePriv(@NonNull DataSourceDesc dsd) throws IOException {
+        Preconditions.checkNotNull(dsd, "the DataSourceDesc cannot be null");
+
+        switch (dsd.getType()) {
+            case DataSourceDesc.TYPE_CALLBACK:
+                setDataSourcePriv(dsd.getId(),
+                                  dsd.getMedia2DataSource());
+                break;
+
+            case DataSourceDesc.TYPE_FD:
+                setDataSourcePriv(dsd.getId(),
+                                  dsd.getFileDescriptor(),
+                                  dsd.getFileDescriptorOffset(),
+                                  dsd.getFileDescriptorLength());
+                break;
+
+            case DataSourceDesc.TYPE_URI:
+                setDataSourcePriv(dsd.getId(),
+                                  dsd.getUriContext(),
+                                  dsd.getUri(),
+                                  dsd.getUriHeaders(),
+                                  dsd.getUriCookies());
+                break;
+
+            default:
+                break;
+        }
+    }
+
+    /**
+     * To provide cookies for the subsequent HTTP requests, you can install your own default cookie
+     * handler and use other variants of setDataSource APIs instead. Alternatively, you can use
+     * this API to pass the cookies as a list of HttpCookie. If the app has not installed
+     * a CookieHandler already, this API creates a CookieManager and populates its CookieStore with
+     * the provided cookies. If the app has installed its own handler already, this API requires the
+     * handler to be of CookieManager type such that the API can update the manager’s CookieStore.
+     *
+     * <p><strong>Note</strong> that the cross domain redirection is allowed by default,
+     * but that can be changed with key/value pairs through the headers parameter with
+     * "android-allow-cross-domain-redirect" as the key and "0" or "1" as the value to
+     * disallow or allow cross domain redirection.
+     *
+     * @throws IllegalArgumentException if cookies are provided and the installed handler is not
+     *                                  a CookieManager
+     * @throws IllegalStateException    if it is called in an invalid state
+     * @throws NullPointerException     if context or uri is null
+     * @throws IOException              if uri has a file scheme and an I/O error occurs
+     */
+    private void setDataSourcePriv(long srcId, @NonNull Context context, @NonNull Uri uri,
+            @Nullable Map<String, String> headers, @Nullable List<HttpCookie> cookies)
+            throws IOException {
+        if (context == null) {
+            throw new NullPointerException("context param can not be null.");
+        }
+
+        if (uri == null) {
+            throw new NullPointerException("uri param can not be null.");
+        }
+
+        if (cookies != null) {
+            CookieHandler cookieHandler = CookieHandler.getDefault();
+            if (cookieHandler != null && !(cookieHandler instanceof CookieManager)) {
+                throw new IllegalArgumentException("The cookie handler has to be of CookieManager "
+                        + "type when cookies are provided.");
+            }
+        }
+
+        // The context and URI usually belong to the calling user. Get a resolver for that user
+        // and strip out the userId from the URI if present.
+        final ContentResolver resolver = context.getContentResolver();
+        final String scheme = uri.getScheme();
+        final String authority = ContentProvider.getAuthorityWithoutUserId(uri.getAuthority());
+        if (ContentResolver.SCHEME_FILE.equals(scheme)) {
+            setDataSourcePriv(srcId, uri.getPath(), null, null);
+            return;
+        } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)
+                && Settings.AUTHORITY.equals(authority)) {
+            // Try cached ringtone first since the actual provider may not be
+            // encryption aware, or it may be stored on CE media storage
+            final int type = RingtoneManager.getDefaultType(uri);
+            final Uri cacheUri = RingtoneManager.getCacheForType(type, context.getUserId());
+            final Uri actualUri = RingtoneManager.getActualDefaultRingtoneUri(context, type);
+            if (attemptDataSource(srcId, resolver, cacheUri)) {
+                return;
+            } else if (attemptDataSource(srcId, resolver, actualUri)) {
+                return;
+            } else {
+                setDataSourcePriv(srcId, uri.toString(), headers, cookies);
+            }
+        } else {
+            // Try requested Uri locally first, or fallback to media server
+            if (attemptDataSource(srcId, resolver, uri)) {
+                return;
+            } else {
+                setDataSourcePriv(srcId, uri.toString(), headers, cookies);
+            }
+        }
+    }
+
+    private boolean attemptDataSource(long srcId, ContentResolver resolver, Uri uri) {
+        try (AssetFileDescriptor afd = resolver.openAssetFileDescriptor(uri, "r")) {
+            if (afd.getDeclaredLength() < 0) {
+                setDataSourcePriv(srcId, afd.getFileDescriptor(), 0, DataSourceDesc.LONG_MAX);
+            } else {
+                setDataSourcePriv(srcId,
+                                  afd.getFileDescriptor(),
+                                  afd.getStartOffset(),
+                                  afd.getDeclaredLength());
+            }
+            return true;
+        } catch (NullPointerException | SecurityException | IOException ex) {
+            Log.w(TAG, "Couldn't open " + uri + ": " + ex);
+            return false;
+        }
+    }
+
+    private void setDataSourcePriv(
+            long srcId, String path, Map<String, String> headers, List<HttpCookie> cookies)
+            throws IOException, IllegalArgumentException, SecurityException, IllegalStateException
+    {
+        String[] keys = null;
+        String[] values = null;
+
+        if (headers != null) {
+            keys = new String[headers.size()];
+            values = new String[headers.size()];
+
+            int i = 0;
+            for (Map.Entry<String, String> entry: headers.entrySet()) {
+                keys[i] = entry.getKey();
+                values[i] = entry.getValue();
+                ++i;
+            }
+        }
+        setDataSourcePriv(srcId, path, keys, values, cookies);
+    }
+
+    private void setDataSourcePriv(long srcId, String path, String[] keys, String[] values,
+            List<HttpCookie> cookies)
+            throws IOException, IllegalArgumentException, SecurityException, IllegalStateException {
+        final Uri uri = Uri.parse(path);
+        final String scheme = uri.getScheme();
+        if ("file".equals(scheme)) {
+            path = uri.getPath();
+        } else if (scheme != null) {
+            // handle non-file sources
+            nativeSetDataSource(
+                Media2HTTPService.createHTTPService(path, cookies),
+                path,
+                keys,
+                values);
+            return;
+        }
+
+        final File file = new File(path);
+        if (file.exists()) {
+            FileInputStream is = new FileInputStream(file);
+            FileDescriptor fd = is.getFD();
+            setDataSourcePriv(srcId, fd, 0, DataSourceDesc.LONG_MAX);
+            is.close();
+        } else {
+            throw new IOException("setDataSourcePriv failed.");
+        }
+    }
+
+    private native void nativeSetDataSource(
+        Media2HTTPService httpService, String path, String[] keys, String[] values)
+        throws IOException, IllegalArgumentException, SecurityException, IllegalStateException;
+
+    /**
+     * Sets the data source (FileDescriptor) to use. The FileDescriptor must be
+     * seekable (N.B. a LocalSocket is not seekable). It is the caller's responsibility
+     * to close the file descriptor. It is safe to do so as soon as this call returns.
+     *
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if fd is not a valid FileDescriptor
+     * @throws IOException if fd can not be read
+     */
+    private void setDataSourcePriv(long srcId, FileDescriptor fd, long offset, long length)
+            throws IOException {
+        _setDataSource(fd, offset, length);
+    }
+
+    private native void _setDataSource(FileDescriptor fd, long offset, long length)
+            throws IOException;
+
+    /**
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if dataSource is not a valid Media2DataSource
+     */
+    private void setDataSourcePriv(long srcId, Media2DataSource dataSource) {
+        _setDataSource(dataSource);
+    }
+
+    private native void _setDataSource(Media2DataSource dataSource);
+
+    /**
+     * Prepares the player for playback, synchronously.
+     *
+     * After setting the datasource and the display surface, you need to either
+     * call prepare() or prepareAsync(). For files, it is OK to call prepare(),
+     * which blocks until MediaPlayer2 is ready for playback.
+     *
+     * @throws IOException if source can not be accessed
+     * @throws IllegalStateException if it is called in an invalid state
+     * @hide
+     */
+    @Override
+    public void prepare() throws IOException {
+        _prepare();
+        scanInternalSubtitleTracks();
+
+        // DrmInfo, if any, has been resolved by now.
+        synchronized (mDrmLock) {
+            mDrmInfoResolved = true;
+        }
+    }
+
+    private native void _prepare() throws IOException, IllegalStateException;
+
+    /**
+     * Prepares the player for playback, asynchronously.
+     *
+     * After setting the datasource and the display surface, you need to either
+     * call prepare() or prepareAsync(). For streams, you should call prepareAsync(),
+     * which returns immediately, rather than blocking until enough data has been
+     * buffered.
+     *
+     * @throws IllegalStateException if it is called in an invalid state
+     */
+    @Override
+    public native void prepareAsync();
+
+    /**
+     * Starts or resumes playback. If playback had previously been paused,
+     * playback will continue from where it was paused. If playback had
+     * been stopped, or never started before, playback will start at the
+     * beginning.
+     *
+     * @throws IllegalStateException if it is called in an invalid state
+     */
+    @Override
+    public void play() {
+        stayAwake(true);
+        _start();
+    }
+
+    private native void _start() throws IllegalStateException;
+
+
+    private int getAudioStreamType() {
+        if (mStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) {
+            mStreamType = _getAudioStreamType();
+        }
+        return mStreamType;
+    }
+
+    private native int _getAudioStreamType() throws IllegalStateException;
+
+    /**
+     * Stops playback after playback has been started or paused.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * #hide
+     */
+    @Override
+    public void stop() {
+        stayAwake(false);
+        _stop();
+    }
+
+    private native void _stop() throws IllegalStateException;
+
+    /**
+     * Pauses playback. Call play() to resume.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    @Override
+    public void pause() {
+        stayAwake(false);
+        _pause();
+    }
+
+    private native void _pause() throws IllegalStateException;
+
+    //--------------------------------------------------------------------------
+    // Explicit Routing
+    //--------------------
+    private AudioDeviceInfo mPreferredDevice = null;
+
+    /**
+     * Specifies an audio device (via an {@link AudioDeviceInfo} object) to route
+     * the output from this MediaPlayer2.
+     * @param deviceInfo The {@link AudioDeviceInfo} specifying the audio sink or source.
+     *  If deviceInfo is null, default routing is restored.
+     * @return true if succesful, false if the specified {@link AudioDeviceInfo} is non-null and
+     * does not correspond to a valid audio device.
+     */
+    @Override
+    public boolean setPreferredDevice(AudioDeviceInfo deviceInfo) {
+        if (deviceInfo != null && !deviceInfo.isSink()) {
+            return false;
+        }
+        int preferredDeviceId = deviceInfo != null ? deviceInfo.getId() : 0;
+        boolean status = native_setOutputDevice(preferredDeviceId);
+        if (status == true) {
+            synchronized (this) {
+                mPreferredDevice = deviceInfo;
+            }
+        }
+        return status;
+    }
+
+    /**
+     * Returns the selected output specified by {@link #setPreferredDevice}. Note that this
+     * is not guaranteed to correspond to the actual device being used for playback.
+     */
+    @Override
+    public AudioDeviceInfo getPreferredDevice() {
+        synchronized (this) {
+            return mPreferredDevice;
+        }
+    }
+
+    /**
+     * Returns an {@link AudioDeviceInfo} identifying the current routing of this MediaPlayer2
+     * Note: The query is only valid if the MediaPlayer2 is currently playing.
+     * If the player is not playing, the returned device can be null or correspond to previously
+     * selected device when the player was last active.
+     */
+    @Override
+    public AudioDeviceInfo getRoutedDevice() {
+        int deviceId = native_getRoutedDeviceId();
+        if (deviceId == 0) {
+            return null;
+        }
+        AudioDeviceInfo[] devices =
+                AudioManager.getDevicesStatic(AudioManager.GET_DEVICES_OUTPUTS);
+        for (int i = 0; i < devices.length; i++) {
+            if (devices[i].getId() == deviceId) {
+                return devices[i];
+            }
+        }
+        return null;
+    }
+
+    /*
+     * Call BEFORE adding a routing callback handler or AFTER removing a routing callback handler.
+     */
+    private void enableNativeRoutingCallbacksLocked(boolean enabled) {
+        if (mRoutingChangeListeners.size() == 0) {
+            native_enableDeviceCallback(enabled);
+        }
+    }
+
+    /**
+     * The list of AudioRouting.OnRoutingChangedListener interfaces added (with
+     * {@link #addOnRoutingChangedListener(android.media.AudioRouting.OnRoutingChangedListener, Handler)}
+     * by an app to receive (re)routing notifications.
+     */
+    @GuardedBy("mRoutingChangeListeners")
+    private ArrayMap<AudioRouting.OnRoutingChangedListener,
+            NativeRoutingEventHandlerDelegate> mRoutingChangeListeners = new ArrayMap<>();
+
+    /**
+     * Adds an {@link AudioRouting.OnRoutingChangedListener} to receive notifications of routing
+     * changes on this MediaPlayer2.
+     * @param listener The {@link AudioRouting.OnRoutingChangedListener} interface to receive
+     * notifications of rerouting events.
+     * @param handler  Specifies the {@link Handler} object for the thread on which to execute
+     * the callback. If <code>null</code>, the handler on the main looper will be used.
+     */
+    @Override
+    public void addOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener,
+            Handler handler) {
+        synchronized (mRoutingChangeListeners) {
+            if (listener != null && !mRoutingChangeListeners.containsKey(listener)) {
+                enableNativeRoutingCallbacksLocked(true);
+                mRoutingChangeListeners.put(
+                        listener, new NativeRoutingEventHandlerDelegate(this, listener,
+                                handler != null ? handler : mEventHandler));
+            }
+        }
+    }
+
+    /**
+     * Removes an {@link AudioRouting.OnRoutingChangedListener} which has been previously added
+     * to receive rerouting notifications.
+     * @param listener The previously added {@link AudioRouting.OnRoutingChangedListener} interface
+     * to remove.
+     */
+    @Override
+    public void removeOnRoutingChangedListener(AudioRouting.OnRoutingChangedListener listener) {
+        synchronized (mRoutingChangeListeners) {
+            if (mRoutingChangeListeners.containsKey(listener)) {
+                mRoutingChangeListeners.remove(listener);
+                enableNativeRoutingCallbacksLocked(false);
+            }
+        }
+    }
+
+    private native final boolean native_setOutputDevice(int deviceId);
+    private native final int native_getRoutedDeviceId();
+    private native final void native_enableDeviceCallback(boolean enabled);
+
+    /**
+     * Set the low-level power management behavior for this MediaPlayer2.  This
+     * can be used when the MediaPlayer2 is not playing through a SurfaceHolder
+     * set with {@link #setDisplay(SurfaceHolder)} and thus can use the
+     * high-level {@link #setScreenOnWhilePlaying(boolean)} feature.
+     *
+     * <p>This function has the MediaPlayer2 access the low-level power manager
+     * service to control the device's power usage while playing is occurring.
+     * The parameter is a combination of {@link android.os.PowerManager} wake flags.
+     * Use of this method requires {@link android.Manifest.permission#WAKE_LOCK}
+     * permission.
+     * By default, no attempt is made to keep the device awake during playback.
+     *
+     * @param context the Context to use
+     * @param mode    the power/wake mode to set
+     * @see android.os.PowerManager
+     * @hide
+     */
+    @Override
+    public void setWakeMode(Context context, int mode) {
+        boolean washeld = false;
+
+        /* Disable persistant wakelocks in media player based on property */
+        if (SystemProperties.getBoolean("audio.offload.ignore_setawake", false) == true) {
+            Log.w(TAG, "IGNORING setWakeMode " + mode);
+            return;
+        }
+
+        if (mWakeLock != null) {
+            if (mWakeLock.isHeld()) {
+                washeld = true;
+                mWakeLock.release();
+            }
+            mWakeLock = null;
+        }
+
+        PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
+        mWakeLock = pm.newWakeLock(mode|PowerManager.ON_AFTER_RELEASE, MediaPlayer2Impl.class.getName());
+        mWakeLock.setReferenceCounted(false);
+        if (washeld) {
+            mWakeLock.acquire();
+        }
+    }
+
+    /**
+     * Control whether we should use the attached SurfaceHolder to keep the
+     * screen on while video playback is occurring.  This is the preferred
+     * method over {@link #setWakeMode} where possible, since it doesn't
+     * require that the application have permission for low-level wake lock
+     * access.
+     *
+     * @param screenOn Supply true to keep the screen on, false to allow it
+     * to turn off.
+     * @hide
+     */
+    @Override
+    public void setScreenOnWhilePlaying(boolean screenOn) {
+        if (mScreenOnWhilePlaying != screenOn) {
+            if (screenOn && mSurfaceHolder == null) {
+                Log.w(TAG, "setScreenOnWhilePlaying(true) is ineffective without a SurfaceHolder");
+            }
+            mScreenOnWhilePlaying = screenOn;
+            updateSurfaceScreenOn();
+        }
+    }
+
+    private void stayAwake(boolean awake) {
+        if (mWakeLock != null) {
+            if (awake && !mWakeLock.isHeld()) {
+                mWakeLock.acquire();
+            } else if (!awake && mWakeLock.isHeld()) {
+                mWakeLock.release();
+            }
+        }
+        mStayAwake = awake;
+        updateSurfaceScreenOn();
+    }
+
+    private void updateSurfaceScreenOn() {
+        if (mSurfaceHolder != null) {
+            mSurfaceHolder.setKeepScreenOn(mScreenOnWhilePlaying && mStayAwake);
+        }
+    }
+
+    /**
+     * Returns the width of the video.
+     *
+     * @return the width of the video, or 0 if there is no video,
+     * no display surface was set, or the width has not been determined
+     * yet. The {@code EventCallback} can be registered via
+     * {@link #registerEventCallback(Executor, EventCallback)} to provide a
+     * notification {@code EventCallback.onVideoSizeChanged} when the width is available.
+     */
+    @Override
+    public native int getVideoWidth();
+
+    /**
+     * Returns the height of the video.
+     *
+     * @return the height of the video, or 0 if there is no video,
+     * no display surface was set, or the height has not been determined
+     * yet. The {@code EventCallback} can be registered via
+     * {@link #registerEventCallback(Executor, EventCallback)} to provide a
+     * notification {@code EventCallback.onVideoSizeChanged} when the height is available.
+     */
+    @Override
+    public native int getVideoHeight();
+
+    /**
+     * Return Metrics data about the current player.
+     *
+     * @return a {@link PersistableBundle} containing the set of attributes and values
+     * available for the media being handled by this instance of MediaPlayer2
+     * The attributes are descibed in {@link MetricsConstants}.
+     *
+     *  Additional vendor-specific fields may also be present in
+     *  the return value.
+     */
+    @Override
+    public PersistableBundle getMetrics() {
+        PersistableBundle bundle = native_getMetrics();
+        return bundle;
+    }
+
+    private native PersistableBundle native_getMetrics();
+
+    /**
+     * Checks whether the MediaPlayer2 is playing.
+     *
+     * @return true if currently playing, false otherwise
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     */
+    @Override
+    public native boolean isPlaying();
+
+    /**
+     * Gets the current buffering management params used by the source component.
+     * Calling it only after {@code setDataSource} has been called.
+     * Each type of data source might have different set of default params.
+     *
+     * @return the current buffering management params used by the source component.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized, or {@code setDataSource} has not been called.
+     * @hide
+     */
+    @Override
+    @NonNull
+    public native BufferingParams getBufferingParams();
+
+    /**
+     * Sets buffering management params.
+     * The object sets its internal BufferingParams to the input, except that the input is
+     * invalid or not supported.
+     * Call it only after {@code setDataSource} has been called.
+     * The input is a hint to MediaPlayer2.
+     *
+     * @param params the buffering management params.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released, or {@code setDataSource} has not been called.
+     * @throws IllegalArgumentException if params is invalid or not supported.
+     * @hide
+     */
+    @Override
+    public native void setBufferingParams(@NonNull BufferingParams params);
+
+    /**
+     * Sets playback rate and audio mode.
+     *
+     * @param rate the ratio between desired playback rate and normal one.
+     * @param audioMode audio playback mode. Must be one of the supported
+     * audio modes.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * @throws IllegalArgumentException if audioMode is not supported.
+     *
+     * @hide
+     */
+    @Override
+    @NonNull
+    public PlaybackParams easyPlaybackParams(float rate, @PlaybackRateAudioMode int audioMode) {
+        PlaybackParams params = new PlaybackParams();
+        params.allowDefaults();
+        switch (audioMode) {
+        case PLAYBACK_RATE_AUDIO_MODE_DEFAULT:
+            params.setSpeed(rate).setPitch(1.0f);
+            break;
+        case PLAYBACK_RATE_AUDIO_MODE_STRETCH:
+            params.setSpeed(rate).setPitch(1.0f)
+                    .setAudioFallbackMode(params.AUDIO_FALLBACK_MODE_FAIL);
+            break;
+        case PLAYBACK_RATE_AUDIO_MODE_RESAMPLE:
+            params.setSpeed(rate).setPitch(rate);
+            break;
+        default:
+            final String msg = "Audio playback mode " + audioMode + " is not supported";
+            throw new IllegalArgumentException(msg);
+        }
+        return params;
+    }
+
+    /**
+     * Sets playback rate using {@link PlaybackParams}. The object sets its internal
+     * PlaybackParams to the input, except that the object remembers previous speed
+     * when input speed is zero. This allows the object to resume at previous speed
+     * when play() is called. Calling it before the object is prepared does not change
+     * the object state. After the object is prepared, calling it with zero speed is
+     * equivalent to calling pause(). After the object is prepared, calling it with
+     * non-zero speed is equivalent to calling play().
+     *
+     * @param params the playback params.
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized or has been released.
+     * @throws IllegalArgumentException if params is not supported.
+     */
+    @Override
+    public native void setPlaybackParams(@NonNull PlaybackParams params);
+
+    /**
+     * Gets the playback params, containing the current playback rate.
+     *
+     * @return the playback params.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    @Override
+    @NonNull
+    public native PlaybackParams getPlaybackParams();
+
+    /**
+     * Sets A/V sync mode.
+     *
+     * @param params the A/V sync params to apply
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     * @throws IllegalArgumentException if params are not supported.
+     */
+    @Override
+    public native void setSyncParams(@NonNull SyncParams params);
+
+    /**
+     * Gets the A/V sync mode.
+     *
+     * @return the A/V sync params
+     *
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized.
+     */
+    @Override
+    @NonNull
+    public native SyncParams getSyncParams();
+
+    private native final void _seekTo(long msec, int mode);
+
+    /**
+     * Moves the media to specified time position by considering the given mode.
+     * <p>
+     * When seekTo is finished, the user will be notified via OnSeekComplete supplied by the user.
+     * There is at most one active seekTo processed at any time. If there is a to-be-completed
+     * seekTo, new seekTo requests will be queued in such a way that only the last request
+     * is kept. When current seekTo is completed, the queued request will be processed if
+     * that request is different from just-finished seekTo operation, i.e., the requested
+     * position or mode is different.
+     *
+     * @param msec the offset in milliseconds from the start to seek to.
+     * When seeking to the given time position, there is no guarantee that the data source
+     * has a frame located at the position. When this happens, a frame nearby will be rendered.
+     * If msec is negative, time position zero will be used.
+     * If msec is larger than duration, duration will be used.
+     * @param mode the mode indicating where exactly to seek to.
+     * Use {@link #SEEK_PREVIOUS_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp earlier than or the same as msec. Use
+     * {@link #SEEK_NEXT_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp later than or the same as msec. Use
+     * {@link #SEEK_CLOSEST_SYNC} if one wants to seek to a sync frame
+     * that has a timestamp closest to or the same as msec. Use
+     * {@link #SEEK_CLOSEST} if one wants to seek to a frame that may
+     * or may not be a sync frame but is closest to or the same as msec.
+     * {@link #SEEK_CLOSEST} often has larger performance overhead compared
+     * to the other options if there is no sync frame located at msec.
+     * @throws IllegalStateException if the internal player engine has not been
+     * initialized
+     * @throws IllegalArgumentException if the mode is invalid.
+     */
+    @Override
+    public void seekTo(long msec, @SeekMode int mode) {
+        if (mode < SEEK_PREVIOUS_SYNC || mode > SEEK_CLOSEST) {
+            final String msg = "Illegal seek mode: " + mode;
+            throw new IllegalArgumentException(msg);
+        }
+        // TODO: pass long to native, instead of truncating here.
+        if (msec > Integer.MAX_VALUE) {
+            Log.w(TAG, "seekTo offset " + msec + " is too large, cap to " + Integer.MAX_VALUE);
+            msec = Integer.MAX_VALUE;
+        } else if (msec < Integer.MIN_VALUE) {
+            Log.w(TAG, "seekTo offset " + msec + " is too small, cap to " + Integer.MIN_VALUE);
+            msec = Integer.MIN_VALUE;
+        }
+        _seekTo(msec, mode);
+    }
+
+    /**
+     * Get current playback position as a {@link MediaTimestamp}.
+     * <p>
+     * The MediaTimestamp represents how the media time correlates to the system time in
+     * a linear fashion using an anchor and a clock rate. During regular playback, the media
+     * time moves fairly constantly (though the anchor frame may be rebased to a current
+     * system time, the linear correlation stays steady). Therefore, this method does not
+     * need to be called often.
+     * <p>
+     * To help users get current playback position, this method always anchors the timestamp
+     * to the current {@link System#nanoTime system time}, so
+     * {@link MediaTimestamp#getAnchorMediaTimeUs} can be used as current playback position.
+     *
+     * @return a MediaTimestamp object if a timestamp is available, or {@code null} if no timestamp
+     *         is available, e.g. because the media player has not been initialized.
+     *
+     * @see MediaTimestamp
+     */
+    @Override
+    @Nullable
+    public MediaTimestamp getTimestamp()
+    {
+        try {
+            // TODO: get the timestamp from native side
+            return new MediaTimestamp(
+                    getCurrentPosition() * 1000L,
+                    System.nanoTime(),
+                    isPlaying() ? getPlaybackParams().getSpeed() : 0.f);
+        } catch (IllegalStateException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Gets the current playback position.
+     *
+     * @return the current position in milliseconds
+     */
+    @Override
+    public native int getCurrentPosition();
+
+    /**
+     * Gets the duration of the file.
+     *
+     * @return the duration in milliseconds, if no duration is available
+     *         (for example, if streaming live content), -1 is returned.
+     */
+    @Override
+    public native int getDuration();
+
+    /**
+     * Gets the media metadata.
+     *
+     * @param update_only controls whether the full set of available
+     * metadata is returned or just the set that changed since the
+     * last call. See {@see #METADATA_UPDATE_ONLY} and {@see
+     * #METADATA_ALL}.
+     *
+     * @param apply_filter if true only metadata that matches the
+     * filter is returned. See {@see #APPLY_METADATA_FILTER} and {@see
+     * #BYPASS_METADATA_FILTER}.
+     *
+     * @return The metadata, possibly empty. null if an error occured.
+     // FIXME: unhide.
+     * {@hide}
+     */
+    @Override
+    public Metadata getMetadata(final boolean update_only,
+                                final boolean apply_filter) {
+        Parcel reply = Parcel.obtain();
+        Metadata data = new Metadata();
+
+        if (!native_getMetadata(update_only, apply_filter, reply)) {
+            reply.recycle();
+            return null;
+        }
+
+        // Metadata takes over the parcel, don't recycle it unless
+        // there is an error.
+        if (!data.parse(reply)) {
+            reply.recycle();
+            return null;
+        }
+        return data;
+    }
+
+    /**
+     * Set a filter for the metadata update notification and update
+     * retrieval. The caller provides 2 set of metadata keys, allowed
+     * and blocked. The blocked set always takes precedence over the
+     * allowed one.
+     * Metadata.MATCH_ALL and Metadata.MATCH_NONE are 2 sets available as
+     * shorthands to allow/block all or no metadata.
+     *
+     * By default, there is no filter set.
+     *
+     * @param allow Is the set of metadata the client is interested
+     *              in receiving new notifications for.
+     * @param block Is the set of metadata the client is not interested
+     *              in receiving new notifications for.
+     * @return The call status code.
+     *
+     // FIXME: unhide.
+     * {@hide}
+     */
+    @Override
+    public int setMetadataFilter(Set<Integer> allow, Set<Integer> block) {
+        // Do our serialization manually instead of calling
+        // Parcel.writeArray since the sets are made of the same type
+        // we avoid paying the price of calling writeValue (used by
+        // writeArray) which burns an extra int per element to encode
+        // the type.
+        Parcel request =  newRequest();
+
+        // The parcel starts already with an interface token. There
+        // are 2 filters. Each one starts with a 4bytes number to
+        // store the len followed by a number of int (4 bytes as well)
+        // representing the metadata type.
+        int capacity = request.dataSize() + 4 * (1 + allow.size() + 1 + block.size());
+
+        if (request.dataCapacity() < capacity) {
+            request.setDataCapacity(capacity);
+        }
+
+        request.writeInt(allow.size());
+        for(Integer t: allow) {
+            request.writeInt(t);
+        }
+        request.writeInt(block.size());
+        for(Integer t: block) {
+            request.writeInt(t);
+        }
+        return native_setMetadataFilter(request);
+    }
+
+    /**
+     * Set the MediaPlayer2 to start when this MediaPlayer2 finishes playback
+     * (i.e. reaches the end of the stream).
+     * The media framework will attempt to transition from this player to
+     * the next as seamlessly as possible. The next player can be set at
+     * any time before completion, but shall be after setDataSource has been
+     * called successfully. The next player must be prepared by the
+     * app, and the application should not call play() on it.
+     * The next MediaPlayer2 must be different from 'this'. An exception
+     * will be thrown if next == this.
+     * The application may call setNextMediaPlayer(null) to indicate no
+     * next player should be started at the end of playback.
+     * If the current player is looping, it will keep looping and the next
+     * player will not be started.
+     *
+     * @param next the player to start after this one completes playback.
+     *
+     * @hide
+     */
+    @Override
+    public native void setNextMediaPlayer(MediaPlayer2 next);
+
+    /**
+     * Resets the MediaPlayer2 to its uninitialized state. After calling
+     * this method, you will have to initialize it again by setting the
+     * data source and calling prepare().
+     */
+    @Override
+    public void reset() {
+        mSelectedSubtitleTrackIndex = -1;
+        synchronized(mOpenSubtitleSources) {
+            for (final InputStream is: mOpenSubtitleSources) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                }
+            }
+            mOpenSubtitleSources.clear();
+        }
+        if (mSubtitleController != null) {
+            mSubtitleController.reset();
+        }
+        if (mTimeProvider != null) {
+            mTimeProvider.close();
+            mTimeProvider = null;
+        }
+
+        stayAwake(false);
+        _reset();
+        // make sure none of the listeners get called anymore
+        if (mEventHandler != null) {
+            mEventHandler.removeCallbacksAndMessages(null);
+        }
+
+        synchronized (mIndexTrackPairs) {
+            mIndexTrackPairs.clear();
+            mInbandTrackIndices.clear();
+        };
+
+        resetDrmState();
+    }
+
+    private native void _reset();
+
+    /**
+     * Set up a timer for {@link #TimeProvider}. {@link #TimeProvider} will be
+     * notified when the presentation time reaches (becomes greater than or equal to)
+     * the value specified.
+     *
+     * @param mediaTimeUs presentation time to get timed event callback at
+     * @hide
+     */
+    @Override
+    public void notifyAt(long mediaTimeUs) {
+        _notifyAt(mediaTimeUs);
+    }
+
+    private native void _notifyAt(long mediaTimeUs);
+
+    // Keep KEY_PARAMETER_* in sync with include/media/mediaplayer2.h
+    private final static int KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400;
+    /**
+     * Sets the parameter indicated by key.
+     * @param key key indicates the parameter to be set.
+     * @param value value of the parameter to be set.
+     * @return true if the parameter is set successfully, false otherwise
+     * {@hide}
+     */
+    private native boolean setParameter(int key, Parcel value);
+
+    /**
+     * Sets the audio attributes for this MediaPlayer2.
+     * See {@link AudioAttributes} for how to build and configure an instance of this class.
+     * You must call this method before {@link #prepare()} or {@link #prepareAsync()} in order
+     * for the audio attributes to become effective thereafter.
+     * @param attributes a non-null set of audio attributes
+     * @throws IllegalArgumentException if the attributes are null or invalid.
+     */
+    @Override
+    public void setAudioAttributes(AudioAttributes attributes) {
+        if (attributes == null) {
+            final String msg = "Cannot set AudioAttributes to null";
+            throw new IllegalArgumentException(msg);
+        }
+        mUsage = attributes.getUsage();
+        mBypassInterruptionPolicy = (attributes.getAllFlags()
+                & AudioAttributes.FLAG_BYPASS_INTERRUPTION_POLICY) != 0;
+        Parcel pattributes = Parcel.obtain();
+        attributes.writeToParcel(pattributes, AudioAttributes.FLATTEN_TAGS);
+        setParameter(KEY_PARAMETER_AUDIO_ATTRIBUTES, pattributes);
+        pattributes.recycle();
+    }
+
+    /**
+     * Sets the player to be looping or non-looping.
+     *
+     * @param looping whether to loop or not
+     * @hide
+     */
+    @Override
+    public native void setLooping(boolean looping);
+
+    /**
+     * Checks whether the MediaPlayer2 is looping or non-looping.
+     *
+     * @return true if the MediaPlayer2 is currently looping, false otherwise
+     * @hide
+     */
+    @Override
+    public native boolean isLooping();
+
+    /**
+     * Sets the volume on this player.
+     * This API is recommended for balancing the output of audio streams
+     * within an application. Unless you are writing an application to
+     * control user settings, this API should be used in preference to
+     * {@link AudioManager#setStreamVolume(int, int, int)} which sets the volume of ALL streams of
+     * a particular type. Note that the passed volume values are raw scalars in range 0.0 to 1.0.
+     * UI controls should be scaled logarithmically.
+     *
+     * @param leftVolume left volume scalar
+     * @param rightVolume right volume scalar
+     */
+    /*
+     * FIXME: Merge this into javadoc comment above when setVolume(float) is not @hide.
+     * The single parameter form below is preferred if the channel volumes don't need
+     * to be set independently.
+     */
+    @Override
+    public void setVolume(float leftVolume, float rightVolume) {
+        _setVolume(leftVolume, rightVolume);
+    }
+
+    private native void _setVolume(float leftVolume, float rightVolume);
+
+    /**
+     * Similar, excepts sets volume of all channels to same value.
+     * @hide
+     */
+    @Override
+    public void setVolume(float volume) {
+        setVolume(volume, volume);
+    }
+
+    /**
+     * Sets the audio session ID.
+     *
+     * @param sessionId the audio session ID.
+     * The audio session ID is a system wide unique identifier for the audio stream played by
+     * this MediaPlayer2 instance.
+     * The primary use of the audio session ID  is to associate audio effects to a particular
+     * instance of MediaPlayer2: if an audio session ID is provided when creating an audio effect,
+     * this effect will be applied only to the audio content of media players within the same
+     * audio session and not to the output mix.
+     * When created, a MediaPlayer2 instance automatically generates its own audio session ID.
+     * However, it is possible to force this player to be part of an already existing audio session
+     * by calling this method.
+     * This method must be called before one of the overloaded <code> setDataSource </code> methods.
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if the sessionId is invalid.
+     */
+    @Override
+    public native void setAudioSessionId(int sessionId);
+
+    /**
+     * Returns the audio session ID.
+     *
+     * @return the audio session ID. {@see #setAudioSessionId(int)}
+     * Note that the audio session ID is 0 only if a problem occured when the MediaPlayer2 was contructed.
+     */
+    @Override
+    public native int getAudioSessionId();
+
+    /**
+     * Attaches an auxiliary effect to the player. A typical auxiliary effect is a reverberation
+     * effect which can be applied on any sound source that directs a certain amount of its
+     * energy to this effect. This amount is defined by setAuxEffectSendLevel().
+     * See {@link #setAuxEffectSendLevel(float)}.
+     * <p>After creating an auxiliary effect (e.g.
+     * {@link android.media.audiofx.EnvironmentalReverb}), retrieve its ID with
+     * {@link android.media.audiofx.AudioEffect#getId()} and use it when calling this method
+     * to attach the player to the effect.
+     * <p>To detach the effect from the player, call this method with a null effect id.
+     * <p>This method must be called after one of the overloaded <code> setDataSource </code>
+     * methods.
+     * @param effectId system wide unique id of the effect to attach
+     */
+    @Override
+    public native void attachAuxEffect(int effectId);
+
+
+    /**
+     * Sets the send level of the player to the attached auxiliary effect.
+     * See {@link #attachAuxEffect(int)}. The level value range is 0 to 1.0.
+     * <p>By default the send level is 0, so even if an effect is attached to the player
+     * this method must be called for the effect to be applied.
+     * <p>Note that the passed level value is a raw scalar. UI controls should be scaled
+     * logarithmically: the gain applied by audio framework ranges from -72dB to 0dB,
+     * so an appropriate conversion from linear UI input x to level is:
+     * x == 0 -> level = 0
+     * 0 < x <= R -> level = 10^(72*(x-R)/20/R)
+     * @param level send level scalar
+     */
+    @Override
+    public void setAuxEffectSendLevel(float level) {
+        _setAuxEffectSendLevel(level);
+    }
+
+    private native void _setAuxEffectSendLevel(float level);
+
+    /*
+     * @param request Parcel destinated to the media player.
+     * @param reply[out] Parcel that will contain the reply.
+     * @return The status code.
+     */
+    private native final int native_invoke(Parcel request, Parcel reply);
+
+
+    /*
+     * @param update_only If true fetch only the set of metadata that have
+     *                    changed since the last invocation of getMetadata.
+     *                    The set is built using the unfiltered
+     *                    notifications the native player sent to the
+     *                    MediaPlayer2Manager during that period of
+     *                    time. If false, all the metadatas are considered.
+     * @param apply_filter  If true, once the metadata set has been built based on
+     *                     the value update_only, the current filter is applied.
+     * @param reply[out] On return contains the serialized
+     *                   metadata. Valid only if the call was successful.
+     * @return The status code.
+     */
+    private native final boolean native_getMetadata(boolean update_only,
+                                                    boolean apply_filter,
+                                                    Parcel reply);
+
+    /*
+     * @param request Parcel with the 2 serialized lists of allowed
+     *                metadata types followed by the one to be
+     *                dropped. Each list starts with an integer
+     *                indicating the number of metadata type elements.
+     * @return The status code.
+     */
+    private native final int native_setMetadataFilter(Parcel request);
+
+    private static native final void native_init();
+    private native final void native_setup(Object mediaplayer2_this);
+    private native final void native_finalize();
+
+    /**
+     * Class for MediaPlayer2 to return each audio/video/subtitle track's metadata.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    public static final class TrackInfoImpl extends TrackInfo {
+        /**
+         * Gets the track type.
+         * @return TrackType which indicates if the track is video, audio, timed text.
+         */
+        @Override
+        public int getTrackType() {
+            return mTrackType;
+        }
+
+        /**
+         * Gets the language code of the track.
+         * @return a language code in either way of ISO-639-1 or ISO-639-2.
+         * When the language is unknown or could not be determined,
+         * ISO-639-2 language code, "und", is returned.
+         */
+        @Override
+        public String getLanguage() {
+            String language = mFormat.getString(MediaFormat.KEY_LANGUAGE);
+            return language == null ? "und" : language;
+        }
+
+        /**
+         * Gets the {@link MediaFormat} of the track.  If the format is
+         * unknown or could not be determined, null is returned.
+         */
+        @Override
+        public MediaFormat getFormat() {
+            if (mTrackType == MEDIA_TRACK_TYPE_TIMEDTEXT
+                    || mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
+                return mFormat;
+            }
+            return null;
+        }
+
+        final int mTrackType;
+        final MediaFormat mFormat;
+
+        TrackInfoImpl(Parcel in) {
+            mTrackType = in.readInt();
+            // TODO: parcel in the full MediaFormat; currently we are using createSubtitleFormat
+            // even for audio/video tracks, meaning we only set the mime and language.
+            String mime = in.readString();
+            String language = in.readString();
+            mFormat = MediaFormat.createSubtitleFormat(mime, language);
+
+            if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
+                mFormat.setInteger(MediaFormat.KEY_IS_AUTOSELECT, in.readInt());
+                mFormat.setInteger(MediaFormat.KEY_IS_DEFAULT, in.readInt());
+                mFormat.setInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE, in.readInt());
+            }
+        }
+
+        /** @hide */
+        TrackInfoImpl(int type, MediaFormat format) {
+            mTrackType = type;
+            mFormat = format;
+        }
+
+        /**
+         * Flatten this object in to a Parcel.
+         *
+         * @param dest The Parcel in which the object should be written.
+         * @param flags Additional flags about how the object should be written.
+         * May be 0 or {@link android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE}.
+         */
+        /* package private */ void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(mTrackType);
+            dest.writeString(getLanguage());
+
+            if (mTrackType == MEDIA_TRACK_TYPE_SUBTITLE) {
+                dest.writeString(mFormat.getString(MediaFormat.KEY_MIME));
+                dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_AUTOSELECT));
+                dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_DEFAULT));
+                dest.writeInt(mFormat.getInteger(MediaFormat.KEY_IS_FORCED_SUBTITLE));
+            }
+        }
+
+        @Override
+        public String toString() {
+            StringBuilder out = new StringBuilder(128);
+            out.append(getClass().getName());
+            out.append('{');
+            switch (mTrackType) {
+            case MEDIA_TRACK_TYPE_VIDEO:
+                out.append("VIDEO");
+                break;
+            case MEDIA_TRACK_TYPE_AUDIO:
+                out.append("AUDIO");
+                break;
+            case MEDIA_TRACK_TYPE_TIMEDTEXT:
+                out.append("TIMEDTEXT");
+                break;
+            case MEDIA_TRACK_TYPE_SUBTITLE:
+                out.append("SUBTITLE");
+                break;
+            default:
+                out.append("UNKNOWN");
+                break;
+            }
+            out.append(", " + mFormat.toString());
+            out.append("}");
+            return out.toString();
+        }
+
+        /**
+         * Used to read a TrackInfoImpl from a Parcel.
+         */
+        /* package private */ static final Parcelable.Creator<TrackInfoImpl> CREATOR
+                = new Parcelable.Creator<TrackInfoImpl>() {
+                    @Override
+                    public TrackInfoImpl createFromParcel(Parcel in) {
+                        return new TrackInfoImpl(in);
+                    }
+
+                    @Override
+                    public TrackInfoImpl[] newArray(int size) {
+                        return new TrackInfoImpl[size];
+                    }
+                };
+
+    };
+
+    // We would like domain specific classes with more informative names than the `first` and `second`
+    // in generic Pair, but we would also like to avoid creating new/trivial classes. As a compromise
+    // we document the meanings of `first` and `second` here:
+    //
+    // Pair.first - inband track index; non-null iff representing an inband track.
+    // Pair.second - a SubtitleTrack registered with mSubtitleController; non-null iff representing
+    //               an inband subtitle track or any out-of-band track (subtitle or timedtext).
+    private Vector<Pair<Integer, SubtitleTrack>> mIndexTrackPairs = new Vector<>();
+    private BitSet mInbandTrackIndices = new BitSet();
+
+    /**
+     * Returns a List of track information.
+     *
+     * @return List of track info. The total number of tracks is the array length.
+     * Must be called again if an external timed text source has been added after
+     * addTimedTextSource method is called.
+     * @throws IllegalStateException if it is called in an invalid state.
+     */
+    @Override
+    public List<TrackInfo> getTrackInfo() {
+        TrackInfoImpl trackInfo[] = getInbandTrackInfoImpl();
+        // add out-of-band tracks
+        synchronized (mIndexTrackPairs) {
+            TrackInfoImpl allTrackInfo[] = new TrackInfoImpl[mIndexTrackPairs.size()];
+            for (int i = 0; i < allTrackInfo.length; i++) {
+                Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i);
+                if (p.first != null) {
+                    // inband track
+                    allTrackInfo[i] = trackInfo[p.first];
+                } else {
+                    SubtitleTrack track = p.second;
+                    allTrackInfo[i] = new TrackInfoImpl(track.getTrackType(), track.getFormat());
+                }
+            }
+            return Arrays.asList(allTrackInfo);
+        }
+    }
+
+    private TrackInfoImpl[] getInbandTrackInfoImpl() throws IllegalStateException {
+        Parcel request = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        try {
+            request.writeInt(INVOKE_ID_GET_TRACK_INFO);
+            invoke(request, reply);
+            TrackInfoImpl trackInfo[] = reply.createTypedArray(TrackInfoImpl.CREATOR);
+            return trackInfo;
+        } finally {
+            request.recycle();
+            reply.recycle();
+        }
+    }
+
+    /*
+     * A helper function to check if the mime type is supported by media framework.
+     */
+    private static boolean availableMimeTypeForExternalSource(String mimeType) {
+        if (MEDIA_MIMETYPE_TEXT_SUBRIP.equals(mimeType)) {
+            return true;
+        }
+        return false;
+    }
+
+    private SubtitleController mSubtitleController;
+
+    /** @hide */
+    @Override
+    public void setSubtitleAnchor(
+            SubtitleController controller,
+            SubtitleController.Anchor anchor) {
+        // TODO: create SubtitleController in MediaPlayer2
+        mSubtitleController = controller;
+        mSubtitleController.setAnchor(anchor);
+    }
+
+    /**
+     * The private version of setSubtitleAnchor is used internally to set mSubtitleController if
+     * necessary when clients don't provide their own SubtitleControllers using the public version
+     * {@link #setSubtitleAnchor(SubtitleController, Anchor)} (e.g. {@link VideoView} provides one).
+     */
+    private synchronized void setSubtitleAnchor() {
+        if ((mSubtitleController == null) && (ActivityThread.currentApplication() != null)) {
+            final HandlerThread thread = new HandlerThread("SetSubtitleAnchorThread");
+            thread.start();
+            Handler handler = new Handler(thread.getLooper());
+            handler.post(new Runnable() {
+                @Override
+                public void run() {
+                    Context context = ActivityThread.currentApplication();
+                    mSubtitleController = new SubtitleController(context, mTimeProvider, MediaPlayer2Impl.this);
+                    mSubtitleController.setAnchor(new Anchor() {
+                        @Override
+                        public void setSubtitleWidget(RenderingWidget subtitleWidget) {
+                        }
+
+                        @Override
+                        public Looper getSubtitleLooper() {
+                            return Looper.getMainLooper();
+                        }
+                    });
+                    thread.getLooper().quitSafely();
+                }
+            });
+            try {
+                thread.join();
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+                Log.w(TAG, "failed to join SetSubtitleAnchorThread");
+            }
+        }
+    }
+
+    private int mSelectedSubtitleTrackIndex = -1;
+    private Vector<InputStream> mOpenSubtitleSources;
+
+    private OnSubtitleDataListener mSubtitleDataListener = new OnSubtitleDataListener() {
+        @Override
+        public void onSubtitleData(MediaPlayer2 mp, SubtitleData data) {
+            int index = data.getTrackIndex();
+            synchronized (mIndexTrackPairs) {
+                for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) {
+                    if (p.first != null && p.first == index && p.second != null) {
+                        // inband subtitle track that owns data
+                        SubtitleTrack track = p.second;
+                        track.onData(data);
+                    }
+                }
+            }
+        }
+    };
+
+    /** @hide */
+    @Override
+    public void onSubtitleTrackSelected(SubtitleTrack track) {
+        if (mSelectedSubtitleTrackIndex >= 0) {
+            try {
+                selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, false);
+            } catch (IllegalStateException e) {
+            }
+            mSelectedSubtitleTrackIndex = -1;
+        }
+        setOnSubtitleDataListener(null);
+        if (track == null) {
+            return;
+        }
+
+        synchronized (mIndexTrackPairs) {
+            for (Pair<Integer, SubtitleTrack> p : mIndexTrackPairs) {
+                if (p.first != null && p.second == track) {
+                    // inband subtitle track that is selected
+                    mSelectedSubtitleTrackIndex = p.first;
+                    break;
+                }
+            }
+        }
+
+        if (mSelectedSubtitleTrackIndex >= 0) {
+            try {
+                selectOrDeselectInbandTrack(mSelectedSubtitleTrackIndex, true);
+            } catch (IllegalStateException e) {
+            }
+            setOnSubtitleDataListener(mSubtitleDataListener);
+        }
+        // no need to select out-of-band tracks
+    }
+
+    /** @hide */
+    @Override
+    public void addSubtitleSource(InputStream is, MediaFormat format)
+            throws IllegalStateException
+    {
+        final InputStream fIs = is;
+        final MediaFormat fFormat = format;
+
+        if (is != null) {
+            // Ensure all input streams are closed.  It is also a handy
+            // way to implement timeouts in the future.
+            synchronized(mOpenSubtitleSources) {
+                mOpenSubtitleSources.add(is);
+            }
+        } else {
+            Log.w(TAG, "addSubtitleSource called with null InputStream");
+        }
+
+        getMediaTimeProvider();
+
+        // process each subtitle in its own thread
+        final HandlerThread thread = new HandlerThread("SubtitleReadThread",
+              Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE);
+        thread.start();
+        Handler handler = new Handler(thread.getLooper());
+        handler.post(new Runnable() {
+            private int addTrack() {
+                if (fIs == null || mSubtitleController == null) {
+                    return MEDIA_INFO_UNSUPPORTED_SUBTITLE;
+                }
+
+                SubtitleTrack track = mSubtitleController.addTrack(fFormat);
+                if (track == null) {
+                    return MEDIA_INFO_UNSUPPORTED_SUBTITLE;
+                }
+
+                // TODO: do the conversion in the subtitle track
+                Scanner scanner = new Scanner(fIs, "UTF-8");
+                String contents = scanner.useDelimiter("\\A").next();
+                synchronized(mOpenSubtitleSources) {
+                    mOpenSubtitleSources.remove(fIs);
+                }
+                scanner.close();
+                synchronized (mIndexTrackPairs) {
+                    mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track));
+                }
+                Handler h = mTimeProvider.mEventHandler;
+                int what = TimeProvider.NOTIFY;
+                int arg1 = TimeProvider.NOTIFY_TRACK_DATA;
+                Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, contents.getBytes());
+                Message m = h.obtainMessage(what, arg1, 0, trackData);
+                h.sendMessage(m);
+                return MEDIA_INFO_EXTERNAL_METADATA_UPDATE;
+            }
+
+            public void run() {
+                int res = addTrack();
+                if (mEventHandler != null) {
+                    Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null);
+                    mEventHandler.sendMessage(m);
+                }
+                thread.getLooper().quitSafely();
+            }
+        });
+    }
+
+    private void scanInternalSubtitleTracks() {
+        setSubtitleAnchor();
+
+        populateInbandTracks();
+
+        if (mSubtitleController != null) {
+            mSubtitleController.selectDefaultTrack();
+        }
+    }
+
+    private void populateInbandTracks() {
+        TrackInfoImpl[] tracks = getInbandTrackInfoImpl();
+        synchronized (mIndexTrackPairs) {
+            for (int i = 0; i < tracks.length; i++) {
+                if (mInbandTrackIndices.get(i)) {
+                    continue;
+                } else {
+                    mInbandTrackIndices.set(i);
+                }
+
+                // newly appeared inband track
+                if (tracks[i].getTrackType() == TrackInfo.MEDIA_TRACK_TYPE_SUBTITLE) {
+                    SubtitleTrack track = mSubtitleController.addTrack(
+                            tracks[i].getFormat());
+                    mIndexTrackPairs.add(Pair.create(i, track));
+                } else {
+                    mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(i, null));
+                }
+            }
+        }
+    }
+
+    /* TODO: Limit the total number of external timed text source to a reasonable number.
+     */
+    /**
+     * Adds an external timed text source file.
+     *
+     * Currently supported format is SubRip with the file extension .srt, case insensitive.
+     * Note that a single external timed text source may contain multiple tracks in it.
+     * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
+     * additional tracks become available after this method call.
+     *
+     * @param path The file path of external timed text source file.
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IOException if the file cannot be accessed or is corrupted.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    @Override
+    public void addTimedTextSource(String path, String mimeType)
+            throws IOException {
+        if (!availableMimeTypeForExternalSource(mimeType)) {
+            final String msg = "Illegal mimeType for timed text source: " + mimeType;
+            throw new IllegalArgumentException(msg);
+        }
+
+        File file = new File(path);
+        if (file.exists()) {
+            FileInputStream is = new FileInputStream(file);
+            FileDescriptor fd = is.getFD();
+            addTimedTextSource(fd, mimeType);
+            is.close();
+        } else {
+            // We do not support the case where the path is not a file.
+            throw new IOException(path);
+        }
+    }
+
+
+    /**
+     * Adds an external timed text source file (Uri).
+     *
+     * Currently supported format is SubRip with the file extension .srt, case insensitive.
+     * Note that a single external timed text source may contain multiple tracks in it.
+     * One can find the total number of available tracks using {@link #getTrackInfo()} to see what
+     * additional tracks become available after this method call.
+     *
+     * @param context the Context to use when resolving the Uri
+     * @param uri the Content URI of the data you want to play
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IOException if the file cannot be accessed or is corrupted.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    @Override
+    public void addTimedTextSource(Context context, Uri uri, String mimeType)
+            throws IOException {
+        String scheme = uri.getScheme();
+        if(scheme == null || scheme.equals("file")) {
+            addTimedTextSource(uri.getPath(), mimeType);
+            return;
+        }
+
+        AssetFileDescriptor fd = null;
+        try {
+            ContentResolver resolver = context.getContentResolver();
+            fd = resolver.openAssetFileDescriptor(uri, "r");
+            if (fd == null) {
+                return;
+            }
+            addTimedTextSource(fd.getFileDescriptor(), mimeType);
+            return;
+        } catch (SecurityException ex) {
+        } catch (IOException ex) {
+        } finally {
+            if (fd != null) {
+                fd.close();
+            }
+        }
+    }
+
+    /**
+     * Adds an external timed text source file (FileDescriptor).
+     *
+     * It is the caller's responsibility to close the file descriptor.
+     * It is safe to do so as soon as this call returns.
+     *
+     * Currently supported format is SubRip. Note that a single external timed text source may
+     * contain multiple tracks in it. One can find the total number of available tracks
+     * using {@link #getTrackInfo()} to see what additional tracks become available
+     * after this method call.
+     *
+     * @param fd the FileDescriptor for the file you want to play
+     * @param mimeType The mime type of the file. Must be one of the mime types listed above.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    @Override
+    public void addTimedTextSource(FileDescriptor fd, String mimeType) {
+        // intentionally less than LONG_MAX
+        addTimedTextSource(fd, 0, 0x7ffffffffffffffL, mimeType);
+    }
+
+    /**
+     * Adds an external timed text file (FileDescriptor).
+     *
+     * It is the caller's responsibility to close the file descriptor.
+     * It is safe to do so as soon as this call returns.
+     *
+     * Currently supported format is SubRip. Note that a single external timed text source may
+     * contain multiple tracks in it. One can find the total number of available tracks
+     * using {@link #getTrackInfo()} to see what additional tracks become available
+     * after this method call.
+     *
+     * @param fd the FileDescriptor for the file you want to play
+     * @param offset the offset into the file where the data to be played starts, in bytes
+     * @param length the length in bytes of the data to be played
+     * @param mime The mime type of the file. Must be one of the mime types listed above.
+     * @throws IllegalArgumentException if the mimeType is not supported.
+     * @throws IllegalStateException if called in an invalid state.
+     * @hide
+     */
+    @Override
+    public void addTimedTextSource(FileDescriptor fd, long offset, long length, String mime) {
+        if (!availableMimeTypeForExternalSource(mime)) {
+            throw new IllegalArgumentException("Illegal mimeType for timed text source: " + mime);
+        }
+
+        final FileDescriptor dupedFd;
+        try {
+            dupedFd = Os.dup(fd);
+        } catch (ErrnoException ex) {
+            Log.e(TAG, ex.getMessage(), ex);
+            throw new RuntimeException(ex);
+        }
+
+        final MediaFormat fFormat = new MediaFormat();
+        fFormat.setString(MediaFormat.KEY_MIME, mime);
+        fFormat.setInteger(MediaFormat.KEY_IS_TIMED_TEXT, 1);
+
+        // A MediaPlayer2 created by a VideoView should already have its mSubtitleController set.
+        if (mSubtitleController == null) {
+            setSubtitleAnchor();
+        }
+
+        if (!mSubtitleController.hasRendererFor(fFormat)) {
+            // test and add not atomic
+            Context context = ActivityThread.currentApplication();
+            mSubtitleController.registerRenderer(new SRTRenderer(context, mEventHandler));
+        }
+        final SubtitleTrack track = mSubtitleController.addTrack(fFormat);
+        synchronized (mIndexTrackPairs) {
+            mIndexTrackPairs.add(Pair.<Integer, SubtitleTrack>create(null, track));
+        }
+
+        getMediaTimeProvider();
+
+        final long offset2 = offset;
+        final long length2 = length;
+        final HandlerThread thread = new HandlerThread(
+                "TimedTextReadThread",
+                Process.THREAD_PRIORITY_BACKGROUND + Process.THREAD_PRIORITY_MORE_FAVORABLE);
+        thread.start();
+        Handler handler = new Handler(thread.getLooper());
+        handler.post(new Runnable() {
+            private int addTrack() {
+                final ByteArrayOutputStream bos = new ByteArrayOutputStream();
+                try {
+                    Os.lseek(dupedFd, offset2, OsConstants.SEEK_SET);
+                    byte[] buffer = new byte[4096];
+                    for (long total = 0; total < length2;) {
+                        int bytesToRead = (int) Math.min(buffer.length, length2 - total);
+                        int bytes = IoBridge.read(dupedFd, buffer, 0, bytesToRead);
+                        if (bytes < 0) {
+                            break;
+                        } else {
+                            bos.write(buffer, 0, bytes);
+                            total += bytes;
+                        }
+                    }
+                    Handler h = mTimeProvider.mEventHandler;
+                    int what = TimeProvider.NOTIFY;
+                    int arg1 = TimeProvider.NOTIFY_TRACK_DATA;
+                    Pair<SubtitleTrack, byte[]> trackData = Pair.create(track, bos.toByteArray());
+                    Message m = h.obtainMessage(what, arg1, 0, trackData);
+                    h.sendMessage(m);
+                    return MEDIA_INFO_EXTERNAL_METADATA_UPDATE;
+                } catch (Exception e) {
+                    Log.e(TAG, e.getMessage(), e);
+                    return MEDIA_INFO_TIMED_TEXT_ERROR;
+                } finally {
+                    try {
+                        Os.close(dupedFd);
+                    } catch (ErrnoException e) {
+                        Log.e(TAG, e.getMessage(), e);
+                    }
+                }
+            }
+
+            public void run() {
+                int res = addTrack();
+                if (mEventHandler != null) {
+                    Message m = mEventHandler.obtainMessage(MEDIA_INFO, res, 0, null);
+                    mEventHandler.sendMessage(m);
+                }
+                thread.getLooper().quitSafely();
+            }
+        });
+    }
+
+    /**
+     * Returns the index of the audio, video, or subtitle track currently selected for playback,
+     * The return value is an index into the array returned by {@link #getTrackInfo()}, and can
+     * be used in calls to {@link #selectTrack(int)} or {@link #deselectTrack(int)}.
+     *
+     * @param trackType should be one of {@link TrackInfo#MEDIA_TRACK_TYPE_VIDEO},
+     * {@link TrackInfo#MEDIA_TRACK_TYPE_AUDIO}, or
+     * {@link TrackInfo#MEDIA_TRACK_TYPE_SUBTITLE}
+     * @return index of the audio, video, or subtitle track currently selected for playback;
+     * a negative integer is returned when there is no selected track for {@code trackType} or
+     * when {@code trackType} is not one of audio, video, or subtitle.
+     * @throws IllegalStateException if called after {@link #close()}
+     *
+     * @see #getTrackInfo()
+     * @see #selectTrack(int)
+     * @see #deselectTrack(int)
+     */
+    @Override
+    public int getSelectedTrack(int trackType) {
+        if (mSubtitleController != null
+                && (trackType == TrackInfo.MEDIA_TRACK_TYPE_SUBTITLE
+                || trackType == TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT)) {
+            SubtitleTrack subtitleTrack = mSubtitleController.getSelectedTrack();
+            if (subtitleTrack != null) {
+                synchronized (mIndexTrackPairs) {
+                    for (int i = 0; i < mIndexTrackPairs.size(); i++) {
+                        Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i);
+                        if (p.second == subtitleTrack && subtitleTrack.getTrackType() == trackType) {
+                            return i;
+                        }
+                    }
+                }
+            }
+        }
+
+        Parcel request = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        try {
+            request.writeInt(INVOKE_ID_GET_SELECTED_TRACK);
+            request.writeInt(trackType);
+            invoke(request, reply);
+            int inbandTrackIndex = reply.readInt();
+            synchronized (mIndexTrackPairs) {
+                for (int i = 0; i < mIndexTrackPairs.size(); i++) {
+                    Pair<Integer, SubtitleTrack> p = mIndexTrackPairs.get(i);
+                    if (p.first != null && p.first == inbandTrackIndex) {
+                        return i;
+                    }
+                }
+            }
+            return -1;
+        } finally {
+            request.recycle();
+            reply.recycle();
+        }
+    }
+
+    /**
+     * Selects a track.
+     * <p>
+     * If a MediaPlayer2 is in invalid state, it throws an IllegalStateException exception.
+     * If a MediaPlayer2 is in <em>Started</em> state, the selected track is presented immediately.
+     * If a MediaPlayer2 is not in Started state, it just marks the track to be played.
+     * </p>
+     * <p>
+     * In any valid state, if it is called multiple times on the same type of track (ie. Video,
+     * Audio, Timed Text), the most recent one will be chosen.
+     * </p>
+     * <p>
+     * The first audio and video tracks are selected by default if available, even though
+     * this method is not called. However, no timed text track will be selected until
+     * this function is called.
+     * </p>
+     * <p>
+     * Currently, only timed text tracks or audio tracks can be selected via this method.
+     * In addition, the support for selecting an audio track at runtime is pretty limited
+     * in that an audio track can only be selected in the <em>Prepared</em> state.
+     * </p>
+     * @param index the index of the track to be selected. The valid range of the index
+     * is 0..total number of track - 1. The total number of tracks as well as the type of
+     * each individual track can be found by calling {@link #getTrackInfo()} method.
+     * @throws IllegalStateException if called in an invalid state.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    @Override
+    public void selectTrack(int index) {
+        selectOrDeselectTrack(index, true /* select */);
+    }
+
+    /**
+     * Deselect a track.
+     * <p>
+     * Currently, the track must be a timed text track and no audio or video tracks can be
+     * deselected. If the timed text track identified by index has not been
+     * selected before, it throws an exception.
+     * </p>
+     * @param index the index of the track to be deselected. The valid range of the index
+     * is 0..total number of tracks - 1. The total number of tracks as well as the type of
+     * each individual track can be found by calling {@link #getTrackInfo()} method.
+     * @throws IllegalStateException if called in an invalid state.
+     *
+     * @see android.media.MediaPlayer2#getTrackInfo
+     */
+    @Override
+    public void deselectTrack(int index) {
+        selectOrDeselectTrack(index, false /* select */);
+    }
+
+    private void selectOrDeselectTrack(int index, boolean select)
+            throws IllegalStateException {
+        // handle subtitle track through subtitle controller
+        populateInbandTracks();
+
+        Pair<Integer,SubtitleTrack> p = null;
+        try {
+            p = mIndexTrackPairs.get(index);
+        } catch (ArrayIndexOutOfBoundsException e) {
+            // ignore bad index
+            return;
+        }
+
+        SubtitleTrack track = p.second;
+        if (track == null) {
+            // inband (de)select
+            selectOrDeselectInbandTrack(p.first, select);
+            return;
+        }
+
+        if (mSubtitleController == null) {
+            return;
+        }
+
+        if (!select) {
+            // out-of-band deselect
+            if (mSubtitleController.getSelectedTrack() == track) {
+                mSubtitleController.selectTrack(null);
+            } else {
+                Log.w(TAG, "trying to deselect track that was not selected");
+            }
+            return;
+        }
+
+        // out-of-band select
+        if (track.getTrackType() == TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT) {
+            int ttIndex = getSelectedTrack(TrackInfo.MEDIA_TRACK_TYPE_TIMEDTEXT);
+            synchronized (mIndexTrackPairs) {
+                if (ttIndex >= 0 && ttIndex < mIndexTrackPairs.size()) {
+                    Pair<Integer,SubtitleTrack> p2 = mIndexTrackPairs.get(ttIndex);
+                    if (p2.first != null && p2.second == null) {
+                        // deselect inband counterpart
+                        selectOrDeselectInbandTrack(p2.first, false);
+                    }
+                }
+            }
+        }
+        mSubtitleController.selectTrack(track);
+    }
+
+    private void selectOrDeselectInbandTrack(int index, boolean select)
+            throws IllegalStateException {
+        Parcel request = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        try {
+            request.writeInt(select? INVOKE_ID_SELECT_TRACK: INVOKE_ID_DESELECT_TRACK);
+            request.writeInt(index);
+            invoke(request, reply);
+        } finally {
+            request.recycle();
+            reply.recycle();
+        }
+    }
+
+    /**
+     * Sets the target UDP re-transmit endpoint for the low level player.
+     * Generally, the address portion of the endpoint is an IP multicast
+     * address, although a unicast address would be equally valid.  When a valid
+     * retransmit endpoint has been set, the media player will not decode and
+     * render the media presentation locally.  Instead, the player will attempt
+     * to re-multiplex its media data using the Android@Home RTP profile and
+     * re-transmit to the target endpoint.  Receiver devices (which may be
+     * either the same as the transmitting device or different devices) may
+     * instantiate, prepare, and start a receiver player using a setDataSource
+     * URL of the form...
+     *
+     * aahRX://&lt;multicastIP&gt;:&lt;port&gt;
+     *
+     * to receive, decode and render the re-transmitted content.
+     *
+     * setRetransmitEndpoint may only be called before setDataSource has been
+     * called; while the player is in the Idle state.
+     *
+     * @param endpoint the address and UDP port of the re-transmission target or
+     * null if no re-transmission is to be performed.
+     * @throws IllegalStateException if it is called in an invalid state
+     * @throws IllegalArgumentException if the retransmit endpoint is supplied,
+     * but invalid.
+     *
+     * {@hide} pending API council
+     */
+    @Override
+    public void setRetransmitEndpoint(InetSocketAddress endpoint)
+            throws IllegalStateException, IllegalArgumentException
+    {
+        String addrString = null;
+        int port = 0;
+
+        if (null != endpoint) {
+            addrString = endpoint.getAddress().getHostAddress();
+            port = endpoint.getPort();
+        }
+
+        int ret = native_setRetransmitEndpoint(addrString, port);
+        if (ret != 0) {
+            throw new IllegalArgumentException("Illegal re-transmit endpoint; native ret " + ret);
+        }
+    }
+
+    private native final int native_setRetransmitEndpoint(String addrString, int port);
+
+    /**
+     * Releases the resources held by this {@code MediaPlayer2} object.
+     *
+     * It is considered good practice to call this method when you're
+     * done using the MediaPlayer2. In particular, whenever an Activity
+     * of an application is paused (its onPause() method is called),
+     * or stopped (its onStop() method is called), this method should be
+     * invoked to release the MediaPlayer2 object, unless the application
+     * has a special need to keep the object around. In addition to
+     * unnecessary resources (such as memory and instances of codecs)
+     * being held, failure to call this method immediately if a
+     * MediaPlayer2 object is no longer needed may also lead to
+     * continuous battery consumption for mobile devices, and playback
+     * failure for other applications if no multiple instances of the
+     * same codec are supported on a device. Even if multiple instances
+     * of the same codec are supported, some performance degradation
+     * may be expected when unnecessary multiple instances are used
+     * at the same time.
+     *
+     * {@code close()} may be safely called after a prior {@code close()}.
+     * This class implements the Java {@code AutoCloseable} interface and
+     * may be used with try-with-resources.
+     */
+    @Override
+    public void close() {
+        synchronized (mGuard) {
+            release();
+        }
+    }
+
+    // Have to declare protected for finalize() since it is protected
+    // in the base class Object.
+    @Override
+    protected void finalize() throws Throwable {
+        if (mGuard != null) {
+            mGuard.warnIfOpen();
+        }
+
+        close();
+        native_finalize();
+    }
+
+    private void release() {
+        stayAwake(false);
+        updateSurfaceScreenOn();
+        synchronized (mEventCbLock) {
+            mEventCb = null;
+            mEventExec = null;
+        }
+        if (mTimeProvider != null) {
+            mTimeProvider.close();
+            mTimeProvider = null;
+        }
+        mOnSubtitleDataListener = null;
+
+        // Modular DRM clean up
+        mOnDrmConfigHelper = null;
+        synchronized (mDrmEventCbLock) {
+            mDrmEventCb = null;
+            mDrmEventExec = null;
+        }
+        resetDrmState();
+
+        _release();
+    }
+
+    private native void _release();
+
+    /* Do not change these values without updating their counterparts
+     * in include/media/mediaplayer2.h!
+     */
+    private static final int MEDIA_NOP = 0; // interface test message
+    private static final int MEDIA_PREPARED = 1;
+    private static final int MEDIA_PLAYBACK_COMPLETE = 2;
+    private static final int MEDIA_BUFFERING_UPDATE = 3;
+    private static final int MEDIA_SEEK_COMPLETE = 4;
+    private static final int MEDIA_SET_VIDEO_SIZE = 5;
+    private static final int MEDIA_STARTED = 6;
+    private static final int MEDIA_PAUSED = 7;
+    private static final int MEDIA_STOPPED = 8;
+    private static final int MEDIA_SKIPPED = 9;
+    private static final int MEDIA_NOTIFY_TIME = 98;
+    private static final int MEDIA_TIMED_TEXT = 99;
+    private static final int MEDIA_ERROR = 100;
+    private static final int MEDIA_INFO = 200;
+    private static final int MEDIA_SUBTITLE_DATA = 201;
+    private static final int MEDIA_META_DATA = 202;
+    private static final int MEDIA_DRM_INFO = 210;
+    private static final int MEDIA_AUDIO_ROUTING_CHANGED = 10000;
+
+    private TimeProvider mTimeProvider;
+
+    /** @hide */
+    @Override
+    public MediaTimeProvider getMediaTimeProvider() {
+        if (mTimeProvider == null) {
+            mTimeProvider = new TimeProvider(this);
+        }
+        return mTimeProvider;
+    }
+
+    private class EventHandler extends Handler {
+        private MediaPlayer2Impl mMediaPlayer;
+
+        public EventHandler(MediaPlayer2Impl mp, Looper looper) {
+            super(looper);
+            mMediaPlayer = mp;
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            if (mMediaPlayer.mNativeContext == 0) {
+                Log.w(TAG, "mediaplayer2 went away with unhandled events");
+                return;
+            }
+            final Executor eventExec;
+            final EventCallback eventCb;
+            synchronized (mEventCbLock) {
+                eventExec = mEventExec;
+                eventCb = mEventCb;
+            }
+            final Executor drmEventExec;
+            final DrmEventCallback drmEventCb;
+            synchronized (mDrmEventCbLock) {
+                drmEventExec = mDrmEventExec;
+                drmEventCb = mDrmEventCb;
+            }
+            switch(msg.what) {
+            case MEDIA_PREPARED:
+                try {
+                    scanInternalSubtitleTracks();
+                } catch (RuntimeException e) {
+                    // send error message instead of crashing;
+                    // send error message instead of inlining a call to onError
+                    // to avoid code duplication.
+                    Message msg2 = obtainMessage(
+                            MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, MEDIA_ERROR_UNSUPPORTED, null);
+                    sendMessage(msg2);
+                }
+
+                if (eventCb != null && eventExec != null) {
+                    eventExec.execute(() -> eventCb.onInfo(
+                            mMediaPlayer, 0, MEDIA_INFO_PREPARED, 0));
+                }
+                return;
+
+            case MEDIA_DRM_INFO:
+                Log.v(TAG, "MEDIA_DRM_INFO " + mDrmEventCb);
+
+                if (msg.obj == null) {
+                    Log.w(TAG, "MEDIA_DRM_INFO msg.obj=NULL");
+                } else if (msg.obj instanceof Parcel) {
+                    if (drmEventExec != null && drmEventCb != null) {
+                        // The parcel was parsed already in postEventFromNative
+                        final DrmInfoImpl drmInfo;
+
+                        synchronized (mDrmLock) {
+                            if (mDrmInfoImpl != null) {
+                                drmInfo = mDrmInfoImpl.makeCopy();
+                            } else {
+                                drmInfo = null;
+                            }
+                        }
+
+                        // notifying the client outside the lock
+                        if (drmInfo != null) {
+                            drmEventExec.execute(() -> drmEventCb.onDrmInfo(mMediaPlayer, drmInfo));
+                        }
+                    }
+                } else {
+                    Log.w(TAG, "MEDIA_DRM_INFO msg.obj of unexpected type " + msg.obj);
+                }
+                return;
+
+            case MEDIA_PLAYBACK_COMPLETE:
+                if (eventCb != null && eventExec != null) {
+                    eventExec.execute(() -> eventCb.onInfo(
+                            mMediaPlayer, 0, MEDIA_INFO_PLAYBACK_COMPLETE, 0));
+                }
+                stayAwake(false);
+                return;
+
+            case MEDIA_STOPPED:
+                {
+                    TimeProvider timeProvider = mTimeProvider;
+                    if (timeProvider != null) {
+                        timeProvider.onStopped();
+                    }
+                }
+                break;
+
+            case MEDIA_STARTED:
+            case MEDIA_PAUSED:
+                {
+                    TimeProvider timeProvider = mTimeProvider;
+                    if (timeProvider != null) {
+                        timeProvider.onPaused(msg.what == MEDIA_PAUSED);
+                    }
+                }
+                break;
+
+            case MEDIA_BUFFERING_UPDATE:
+                if (eventCb != null && eventExec != null) {
+                    final int percent = msg.arg1;
+                    eventExec.execute(() -> eventCb.onBufferingUpdate(mMediaPlayer, 0, percent));
+                }
+                return;
+
+            case MEDIA_SEEK_COMPLETE:
+                if (eventCb != null && eventExec != null) {
+                    eventExec.execute(() -> eventCb.onInfo(
+                            mMediaPlayer, 0, MEDIA_INFO_COMPLETE_CALL_SEEK, 0));
+                }
+                // fall through
+
+            case MEDIA_SKIPPED:
+                {
+                    TimeProvider timeProvider = mTimeProvider;
+                    if (timeProvider != null) {
+                        timeProvider.onSeekComplete(mMediaPlayer);
+                    }
+                }
+                return;
+
+            case MEDIA_SET_VIDEO_SIZE:
+                if (eventCb != null && eventExec != null) {
+                    final int width = msg.arg1;
+                    final int height = msg.arg2;
+                    eventExec.execute(() -> eventCb.onVideoSizeChanged(
+                            mMediaPlayer, 0, width, height));
+                }
+                return;
+
+            case MEDIA_ERROR:
+                Log.e(TAG, "Error (" + msg.arg1 + "," + msg.arg2 + ")");
+                if (eventCb != null && eventExec != null) {
+                    final int what = msg.arg1;
+                    final int extra = msg.arg2;
+                    eventExec.execute(() -> eventCb.onError(mMediaPlayer, 0, what, extra));
+                    eventExec.execute(() -> eventCb.onInfo(
+                            mMediaPlayer, 0, MEDIA_INFO_PLAYBACK_COMPLETE, 0));
+                }
+                stayAwake(false);
+                return;
+
+            case MEDIA_INFO:
+                switch (msg.arg1) {
+                case MEDIA_INFO_VIDEO_TRACK_LAGGING:
+                    Log.i(TAG, "Info (" + msg.arg1 + "," + msg.arg2 + ")");
+                    break;
+                case MEDIA_INFO_METADATA_UPDATE:
+                    try {
+                        scanInternalSubtitleTracks();
+                    } catch (RuntimeException e) {
+                        Message msg2 = obtainMessage(
+                                MEDIA_ERROR, MEDIA_ERROR_UNKNOWN, MEDIA_ERROR_UNSUPPORTED, null);
+                        sendMessage(msg2);
+                    }
+                    // fall through
+
+                case MEDIA_INFO_EXTERNAL_METADATA_UPDATE:
+                    msg.arg1 = MEDIA_INFO_METADATA_UPDATE;
+                    // update default track selection
+                    if (mSubtitleController != null) {
+                        mSubtitleController.selectDefaultTrack();
+                    }
+                    break;
+                case MEDIA_INFO_BUFFERING_START:
+                case MEDIA_INFO_BUFFERING_END:
+                    TimeProvider timeProvider = mTimeProvider;
+                    if (timeProvider != null) {
+                        timeProvider.onBuffering(msg.arg1 == MEDIA_INFO_BUFFERING_START);
+                    }
+                    break;
+                }
+
+                if (eventCb != null && eventExec != null) {
+                    final int what = msg.arg1;
+                    final int extra = msg.arg2;
+                    eventExec.execute(() -> eventCb.onInfo(mMediaPlayer, 0, what, extra));
+                }
+                // No real default action so far.
+                return;
+
+            case MEDIA_NOTIFY_TIME:
+                    TimeProvider timeProvider = mTimeProvider;
+                    if (timeProvider != null) {
+                        timeProvider.onNotifyTime();
+                    }
+                return;
+
+            case MEDIA_TIMED_TEXT:
+                if (eventCb == null || eventExec == null) {
+                    return;
+                }
+                if (msg.obj == null) {
+                    eventExec.execute(() -> eventCb.onTimedText(mMediaPlayer, 0, null));
+                } else {
+                    if (msg.obj instanceof Parcel) {
+                        Parcel parcel = (Parcel)msg.obj;
+                        TimedText text = new TimedText(parcel);
+                        parcel.recycle();
+                        eventExec.execute(() -> eventCb.onTimedText(mMediaPlayer, 0, text));
+                    }
+                }
+                return;
+
+            case MEDIA_SUBTITLE_DATA:
+                OnSubtitleDataListener onSubtitleDataListener = mOnSubtitleDataListener;
+                if (onSubtitleDataListener == null) {
+                    return;
+                }
+                if (msg.obj instanceof Parcel) {
+                    Parcel parcel = (Parcel) msg.obj;
+                    SubtitleData data = new SubtitleData(parcel);
+                    parcel.recycle();
+                    onSubtitleDataListener.onSubtitleData(mMediaPlayer, data);
+                }
+                return;
+
+            case MEDIA_META_DATA:
+                if (eventCb == null || eventExec == null) {
+                    return;
+                }
+                if (msg.obj instanceof Parcel) {
+                    Parcel parcel = (Parcel) msg.obj;
+                    TimedMetaData data = TimedMetaData.createTimedMetaDataFromParcel(parcel);
+                    parcel.recycle();
+                    eventExec.execute(() -> eventCb.onTimedMetaDataAvailable(
+                            mMediaPlayer, 0, data));
+                }
+                return;
+
+            case MEDIA_NOP: // interface test message - ignore
+                break;
+
+            case MEDIA_AUDIO_ROUTING_CHANGED:
+                AudioManager.resetAudioPortGeneration();
+                synchronized (mRoutingChangeListeners) {
+                    for (NativeRoutingEventHandlerDelegate delegate
+                            : mRoutingChangeListeners.values()) {
+                        delegate.notifyClient();
+                    }
+                }
+                return;
+
+            default:
+                Log.e(TAG, "Unknown message type " + msg.what);
+                return;
+            }
+        }
+    }
+
+    /*
+     * Called from native code when an interesting event happens.  This method
+     * just uses the EventHandler system to post the event back to the main app thread.
+     * We use a weak reference to the original MediaPlayer2 object so that the native
+     * code is safe from the object disappearing from underneath it.  (This is
+     * the cookie passed to native_setup().)
+     */
+    private static void postEventFromNative(Object mediaplayer2_ref,
+                                            int what, int arg1, int arg2, Object obj)
+    {
+        final MediaPlayer2Impl mp = (MediaPlayer2Impl)((WeakReference)mediaplayer2_ref).get();
+        if (mp == null) {
+            return;
+        }
+
+        switch (what) {
+        case MEDIA_INFO:
+            if (arg1 == MEDIA_INFO_STARTED_AS_NEXT) {
+                new Thread(new Runnable() {
+                    @Override
+                    public void run() {
+                        // this acquires the wakelock if needed, and sets the client side state
+                        mp.play();
+                    }
+                }).start();
+                Thread.yield();
+            }
+            break;
+
+        case MEDIA_DRM_INFO:
+            // We need to derive mDrmInfoImpl before prepare() returns so processing it here
+            // before the notification is sent to EventHandler below. EventHandler runs in the
+            // notification looper so its handleMessage might process the event after prepare()
+            // has returned.
+            Log.v(TAG, "postEventFromNative MEDIA_DRM_INFO");
+            if (obj instanceof Parcel) {
+                Parcel parcel = (Parcel)obj;
+                DrmInfoImpl drmInfo = new DrmInfoImpl(parcel);
+                synchronized (mp.mDrmLock) {
+                    mp.mDrmInfoImpl = drmInfo;
+                }
+            } else {
+                Log.w(TAG, "MEDIA_DRM_INFO msg.obj of unexpected type " + obj);
+            }
+            break;
+
+        case MEDIA_PREPARED:
+            // By this time, we've learned about DrmInfo's presence or absence. This is meant
+            // mainly for prepareAsync() use case. For prepare(), this still can run to a race
+            // condition b/c MediaPlayerNative releases the prepare() lock before calling notify
+            // so we also set mDrmInfoResolved in prepare().
+            synchronized (mp.mDrmLock) {
+                mp.mDrmInfoResolved = true;
+            }
+            break;
+
+        }
+
+        if (mp.mEventHandler != null) {
+            Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj);
+            mp.mEventHandler.sendMessage(m);
+        }
+    }
+
+    private Executor mEventExec;
+    private EventCallback mEventCb;
+    private final Object mEventCbLock = new Object();
+
+    /**
+     * Register a callback to be invoked when the media source is ready
+     * for playback.
+     *
+     * @param eventCallback the callback that will be run
+     * @param executor the executor through which the callback should be invoked
+     */
+    @Override
+    public void registerEventCallback(@NonNull @CallbackExecutor Executor executor,
+            @NonNull EventCallback eventCallback) {
+        if (eventCallback == null) {
+            throw new IllegalArgumentException("Illegal null EventCallback");
+        }
+        if (executor == null) {
+            throw new IllegalArgumentException("Illegal null Executor for the EventCallback");
+        }
+        synchronized (mEventCbLock) {
+            // TODO: support multiple callbacks.
+            mEventExec = executor;
+            mEventCb = eventCallback;
+        }
+    }
+
+    /**
+     * Unregisters an {@link EventCallback}.
+     *
+     * @param callback an {@link EventCallback} to unregister
+     */
+    @Override
+    public void unregisterEventCallback(EventCallback callback) {
+        synchronized (mEventCbLock) {
+            if (callback == mEventCb) {
+                mEventExec = null;
+                mEventCb = null;
+            }
+        }
+    }
+
+    /**
+     * Register a callback to be invoked when a track has data available.
+     *
+     * @param listener the callback that will be run
+     *
+     * @hide
+     */
+    @Override
+    public void setOnSubtitleDataListener(OnSubtitleDataListener listener) {
+        mOnSubtitleDataListener = listener;
+    }
+
+    private OnSubtitleDataListener mOnSubtitleDataListener;
+
+
+    // Modular DRM begin
+
+    /**
+     * Register a callback to be invoked for configuration of the DRM object before
+     * the session is created.
+     * The callback will be invoked synchronously during the execution
+     * of {@link #prepareDrm(UUID uuid)}.
+     *
+     * @param listener the callback that will be run
+     */
+    @Override
+    public void setOnDrmConfigHelper(OnDrmConfigHelper listener)
+    {
+        synchronized (mDrmLock) {
+            mOnDrmConfigHelper = listener;
+        } // synchronized
+    }
+
+    private OnDrmConfigHelper mOnDrmConfigHelper;
+
+    private Executor mDrmEventExec;
+    private DrmEventCallback mDrmEventCb;
+    private final Object mDrmEventCbLock = new Object();
+
+    /**
+     * Register a callback to be invoked when the media source is ready
+     * for playback.
+     *
+     * @param eventCallback the callback that will be run
+     * @param executor the executor through which the callback should be invoked
+     */
+    @Override
+    public void registerDrmEventCallback(@NonNull @CallbackExecutor Executor executor,
+            @NonNull DrmEventCallback eventCallback) {
+        if (eventCallback == null) {
+            throw new IllegalArgumentException("Illegal null EventCallback");
+        }
+        if (executor == null) {
+            throw new IllegalArgumentException("Illegal null Executor for the EventCallback");
+        }
+        synchronized (mDrmEventCbLock) {
+            // TODO: support multiple callbacks.
+            mDrmEventExec = executor;
+            mDrmEventCb = eventCallback;
+        }
+    }
+
+    /**
+     * Unregisters a {@link DrmEventCallback}.
+     *
+     * @param callback a {@link DrmEventCallback} to unregister
+     */
+    @Override
+    public void unregisterDrmEventCallback(DrmEventCallback callback) {
+        synchronized (mDrmEventCbLock) {
+            if (callback == mDrmEventCb) {
+                mDrmEventExec = null;
+                mDrmEventCb = null;
+            }
+        }
+    }
+
+
+    /**
+     * Retrieves the DRM Info associated with the current source
+     *
+     * @throws IllegalStateException if called before prepare()
+     */
+    @Override
+    public DrmInfo getDrmInfo() {
+        DrmInfoImpl drmInfo = null;
+
+        // there is not much point if the app calls getDrmInfo within an OnDrmInfoListenet;
+        // regardless below returns drmInfo anyway instead of raising an exception
+        synchronized (mDrmLock) {
+            if (!mDrmInfoResolved && mDrmInfoImpl == null) {
+                final String msg = "The Player has not been prepared yet";
+                Log.v(TAG, msg);
+                throw new IllegalStateException(msg);
+            }
+
+            if (mDrmInfoImpl != null) {
+                drmInfo = mDrmInfoImpl.makeCopy();
+            }
+        }   // synchronized
+
+        return drmInfo;
+    }
+
+
+    /**
+     * Prepares the DRM for the current source
+     * <p>
+     * If {@code OnDrmConfigHelper} is registered, it will be called during
+     * preparation to allow configuration of the DRM properties before opening the
+     * DRM session. Note that the callback is called synchronously in the thread that called
+     * {@code prepareDrm}. It should be used only for a series of {@code getDrmPropertyString}
+     * and {@code setDrmPropertyString} calls and refrain from any lengthy operation.
+     * <p>
+     * If the device has not been provisioned before, this call also provisions the device
+     * which involves accessing the provisioning server and can take a variable time to
+     * complete depending on the network connectivity.
+     * If {@code OnDrmPreparedListener} is registered, prepareDrm() runs in non-blocking
+     * mode by launching the provisioning in the background and returning. The listener
+     * will be called when provisioning and preparation has finished. If a
+     * {@code OnDrmPreparedListener} is not registered, prepareDrm() waits till provisioning
+     * and preparation has finished, i.e., runs in blocking mode.
+     * <p>
+     * If {@code OnDrmPreparedListener} is registered, it is called to indicate the DRM
+     * session being ready. The application should not make any assumption about its call
+     * sequence (e.g., before or after prepareDrm returns), or the thread context that will
+     * execute the listener (unless the listener is registered with a handler thread).
+     * <p>
+     *
+     * @param uuid The UUID of the crypto scheme. If not known beforehand, it can be retrieved
+     * from the source through {@code getDrmInfo} or registering a {@code onDrmInfoListener}.
+     *
+     * @throws IllegalStateException              if called before prepare(), or the DRM was
+     *                                            prepared already
+     * @throws UnsupportedSchemeException         if the crypto scheme is not supported
+     * @throws ResourceBusyException              if required DRM resources are in use
+     * @throws ProvisioningNetworkErrorException  if provisioning is required but failed due to a
+     *                                            network error
+     * @throws ProvisioningServerErrorException   if provisioning is required but failed due to
+     *                                            the request denied by the provisioning server
+     */
+    @Override
+    public void prepareDrm(@NonNull UUID uuid)
+            throws UnsupportedSchemeException, ResourceBusyException,
+                   ProvisioningNetworkErrorException, ProvisioningServerErrorException
+    {
+        Log.v(TAG, "prepareDrm: uuid: " + uuid + " mOnDrmConfigHelper: " + mOnDrmConfigHelper);
+
+        boolean allDoneWithoutProvisioning = false;
+
+        synchronized (mDrmLock) {
+
+            // only allowing if tied to a protected source; might relax for releasing offline keys
+            if (mDrmInfoImpl == null) {
+                final String msg = "prepareDrm(): Wrong usage: The player must be prepared and " +
+                        "DRM info be retrieved before this call.";
+                Log.e(TAG, msg);
+                throw new IllegalStateException(msg);
+            }
+
+            if (mActiveDrmScheme) {
+                final String msg = "prepareDrm(): Wrong usage: There is already " +
+                        "an active DRM scheme with " + mDrmUUID;
+                Log.e(TAG, msg);
+                throw new IllegalStateException(msg);
+            }
+
+            if (mPrepareDrmInProgress) {
+                final String msg = "prepareDrm(): Wrong usage: There is already " +
+                        "a pending prepareDrm call.";
+                Log.e(TAG, msg);
+                throw new IllegalStateException(msg);
+            }
+
+            if (mDrmProvisioningInProgress) {
+                final String msg = "prepareDrm(): Unexpectd: Provisioning is already in progress.";
+                Log.e(TAG, msg);
+                throw new IllegalStateException(msg);
+            }
+
+            // shouldn't need this; just for safeguard
+            cleanDrmObj();
+
+            mPrepareDrmInProgress = true;
+
+            try {
+                // only creating the DRM object to allow pre-openSession configuration
+                prepareDrm_createDrmStep(uuid);
+            } catch (Exception e) {
+                Log.w(TAG, "prepareDrm(): Exception ", e);
+                mPrepareDrmInProgress = false;
+                throw e;
+            }
+
+            mDrmConfigAllowed = true;
+        }   // synchronized
+
+
+        // call the callback outside the lock
+        if (mOnDrmConfigHelper != null)  {
+            mOnDrmConfigHelper.onDrmConfig(this);
+        }
+
+        synchronized (mDrmLock) {
+            mDrmConfigAllowed = false;
+            boolean earlyExit = false;
+
+            try {
+                prepareDrm_openSessionStep(uuid);
+
+                mDrmUUID = uuid;
+                mActiveDrmScheme = true;
+
+                allDoneWithoutProvisioning = true;
+            } catch (IllegalStateException e) {
+                final String msg = "prepareDrm(): Wrong usage: The player must be " +
+                        "in the prepared state to call prepareDrm().";
+                Log.e(TAG, msg);
+                earlyExit = true;
+                throw new IllegalStateException(msg);
+            } catch (NotProvisionedException e) {
+                Log.w(TAG, "prepareDrm: NotProvisionedException");
+
+                // handle provisioning internally; it'll reset mPrepareDrmInProgress
+                int result = HandleProvisioninig(uuid);
+
+                // if blocking mode, we're already done;
+                // if non-blocking mode, we attempted to launch background provisioning
+                if (result != PREPARE_DRM_STATUS_SUCCESS) {
+                    earlyExit = true;
+                    String msg;
+
+                    switch (result) {
+                    case PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR:
+                        msg = "prepareDrm: Provisioning was required but failed " +
+                                "due to a network error.";
+                        Log.e(TAG, msg);
+                        throw new ProvisioningNetworkErrorExceptionImpl(msg);
+
+                    case PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR:
+                        msg = "prepareDrm: Provisioning was required but the request " +
+                                "was denied by the server.";
+                        Log.e(TAG, msg);
+                        throw new ProvisioningServerErrorExceptionImpl(msg);
+
+                    case PREPARE_DRM_STATUS_PREPARATION_ERROR:
+                    default: // default for safeguard
+                        msg = "prepareDrm: Post-provisioning preparation failed.";
+                        Log.e(TAG, msg);
+                        throw new IllegalStateException(msg);
+                    }
+                }
+                // nothing else to do;
+                // if blocking or non-blocking, HandleProvisioninig does the re-attempt & cleanup
+            } catch (Exception e) {
+                Log.e(TAG, "prepareDrm: Exception " + e);
+                earlyExit = true;
+                throw e;
+            } finally {
+                if (!mDrmProvisioningInProgress) {// if early exit other than provisioning exception
+                    mPrepareDrmInProgress = false;
+                }
+                if (earlyExit) {    // cleaning up object if didn't succeed
+                    cleanDrmObj();
+                }
+            } // finally
+        }   // synchronized
+
+
+        // if finished successfully without provisioning, call the callback outside the lock
+        if (allDoneWithoutProvisioning) {
+            final Executor drmEventExec;
+            final DrmEventCallback drmEventCb;
+            synchronized (mDrmEventCbLock) {
+                drmEventExec = mDrmEventExec;
+                drmEventCb = mDrmEventCb;
+            }
+            if (drmEventExec != null && drmEventCb != null) {
+                drmEventExec.execute(() -> drmEventCb.onDrmPrepared(
+                    this, PREPARE_DRM_STATUS_SUCCESS));
+            }
+        }
+
+    }
+
+
+    private native void _releaseDrm();
+
+    /**
+     * Releases the DRM session
+     * <p>
+     * The player has to have an active DRM session and be in stopped, or prepared
+     * state before this call is made.
+     * A {@code reset()} call will release the DRM session implicitly.
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session to release
+     */
+    @Override
+    public void releaseDrm()
+            throws NoDrmSchemeException
+    {
+        Log.v(TAG, "releaseDrm:");
+
+        synchronized (mDrmLock) {
+            if (!mActiveDrmScheme) {
+                Log.e(TAG, "releaseDrm(): No active DRM scheme to release.");
+                throw new NoDrmSchemeExceptionImpl("releaseDrm: No active DRM scheme to release.");
+            }
+
+            try {
+                // we don't have the player's state in this layer. The below call raises
+                // exception if we're in a non-stopped/prepared state.
+
+                // for cleaning native/mediaserver crypto object
+                _releaseDrm();
+
+                // for cleaning client-side MediaDrm object; only called if above has succeeded
+                cleanDrmObj();
+
+                mActiveDrmScheme = false;
+            } catch (IllegalStateException e) {
+                Log.w(TAG, "releaseDrm: Exception ", e);
+                throw new IllegalStateException("releaseDrm: The player is not in a valid state.");
+            } catch (Exception e) {
+                Log.e(TAG, "releaseDrm: Exception ", e);
+            }
+        }   // synchronized
+    }
+
+
+    /**
+     * A key request/response exchange occurs between the app and a license server
+     * to obtain or release keys used to decrypt encrypted content.
+     * <p>
+     * getKeyRequest() is used to obtain an opaque key request byte array that is
+     * delivered to the license server.  The opaque key request byte array is returned
+     * in KeyRequest.data.  The recommended URL to deliver the key request to is
+     * returned in KeyRequest.defaultUrl.
+     * <p>
+     * After the app has received the key request response from the server,
+     * it should deliver to the response to the DRM engine plugin using the method
+     * {@link #provideKeyResponse}.
+     *
+     * @param keySetId is the key-set identifier of the offline keys being released when keyType is
+     * {@link MediaDrm#KEY_TYPE_RELEASE}. It should be set to null for other key requests, when
+     * keyType is {@link MediaDrm#KEY_TYPE_STREAMING} or {@link MediaDrm#KEY_TYPE_OFFLINE}.
+     *
+     * @param initData is the container-specific initialization data when the keyType is
+     * {@link MediaDrm#KEY_TYPE_STREAMING} or {@link MediaDrm#KEY_TYPE_OFFLINE}. Its meaning is
+     * interpreted based on the mime type provided in the mimeType parameter.  It could
+     * contain, for example, the content ID, key ID or other data obtained from the content
+     * metadata that is required in generating the key request.
+     * When the keyType is {@link MediaDrm#KEY_TYPE_RELEASE}, it should be set to null.
+     *
+     * @param mimeType identifies the mime type of the content
+     *
+     * @param keyType specifies the type of the request. The request may be to acquire
+     * keys for streaming, {@link MediaDrm#KEY_TYPE_STREAMING}, or for offline content
+     * {@link MediaDrm#KEY_TYPE_OFFLINE}, or to release previously acquired
+     * keys ({@link MediaDrm#KEY_TYPE_RELEASE}), which are identified by a keySetId.
+     *
+     * @param optionalParameters are included in the key request message to
+     * allow a client application to provide additional message parameters to the server.
+     * This may be {@code null} if no additional parameters are to be sent.
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session
+     */
+    @Override
+    @NonNull
+    public MediaDrm.KeyRequest getKeyRequest(@Nullable byte[] keySetId, @Nullable byte[] initData,
+            @Nullable String mimeType, @MediaDrm.KeyType int keyType,
+            @Nullable Map<String, String> optionalParameters)
+            throws NoDrmSchemeException
+    {
+        Log.v(TAG, "getKeyRequest: " +
+                " keySetId: " + keySetId + " initData:" + initData + " mimeType: " + mimeType +
+                " keyType: " + keyType + " optionalParameters: " + optionalParameters);
+
+        synchronized (mDrmLock) {
+            if (!mActiveDrmScheme) {
+                Log.e(TAG, "getKeyRequest NoDrmSchemeException");
+                throw new NoDrmSchemeExceptionImpl("getKeyRequest: Has to set a DRM scheme first.");
+            }
+
+            try {
+                byte[] scope = (keyType != MediaDrm.KEY_TYPE_RELEASE) ?
+                        mDrmSessionId : // sessionId for KEY_TYPE_STREAMING/OFFLINE
+                        keySetId;       // keySetId for KEY_TYPE_RELEASE
+
+                HashMap<String, String> hmapOptionalParameters =
+                                                (optionalParameters != null) ?
+                                                new HashMap<String, String>(optionalParameters) :
+                                                null;
+
+                MediaDrm.KeyRequest request = mDrmObj.getKeyRequest(scope, initData, mimeType,
+                                                              keyType, hmapOptionalParameters);
+                Log.v(TAG, "getKeyRequest:   --> request: " + request);
+
+                return request;
+
+            } catch (NotProvisionedException e) {
+                Log.w(TAG, "getKeyRequest NotProvisionedException: " +
+                        "Unexpected. Shouldn't have reached here.");
+                throw new IllegalStateException("getKeyRequest: Unexpected provisioning error.");
+            } catch (Exception e) {
+                Log.w(TAG, "getKeyRequest Exception " + e);
+                throw e;
+            }
+
+        }   // synchronized
+    }
+
+
+    /**
+     * A key response is received from the license server by the app, then it is
+     * provided to the DRM engine plugin using provideKeyResponse. When the
+     * response is for an offline key request, a key-set identifier is returned that
+     * can be used to later restore the keys to a new session with the method
+     * {@ link # restoreKeys}.
+     * When the response is for a streaming or release request, null is returned.
+     *
+     * @param keySetId When the response is for a release request, keySetId identifies
+     * the saved key associated with the release request (i.e., the same keySetId
+     * passed to the earlier {@ link # getKeyRequest} call. It MUST be null when the
+     * response is for either streaming or offline key requests.
+     *
+     * @param response the byte array response from the server
+     *
+     * @throws NoDrmSchemeException if there is no active DRM session
+     * @throws DeniedByServerException if the response indicates that the
+     * server rejected the request
+     */
+    @Override
+    public byte[] provideKeyResponse(@Nullable byte[] keySetId, @NonNull byte[] response)
+            throws NoDrmSchemeException, DeniedByServerException
+    {
+        Log.v(TAG, "provideKeyResponse: keySetId: " + keySetId + " response: " + response);
+
+        synchronized (mDrmLock) {
+
+            if (!mActiveDrmScheme) {
+                Log.e(TAG, "getKeyRequest NoDrmSchemeException");
+                throw new NoDrmSchemeExceptionImpl("getKeyRequest: Has to set a DRM scheme first.");
+            }
+
+            try {
+                byte[] scope = (keySetId == null) ?
+                                mDrmSessionId :     // sessionId for KEY_TYPE_STREAMING/OFFLINE
+                                keySetId;           // keySetId for KEY_TYPE_RELEASE
+
+                byte[] keySetResult = mDrmObj.provideKeyResponse(scope, response);
+
+                Log.v(TAG, "provideKeyResponse: keySetId: " + keySetId + " response: " + response +
+                        " --> " + keySetResult);
+
+
+                return keySetResult;
+
+            } catch (NotProvisionedException e) {
+                Log.w(TAG, "provideKeyResponse NotProvisionedException: " +
+                        "Unexpected. Shouldn't have reached here.");
+                throw new IllegalStateException("provideKeyResponse: " +
+                        "Unexpected provisioning error.");
+            } catch (Exception e) {
+                Log.w(TAG, "provideKeyResponse Exception " + e);
+                throw e;
+            }
+        }   // synchronized
+    }
+
+
+    /**
+     * Restore persisted offline keys into a new session.  keySetId identifies the
+     * keys to load, obtained from a prior call to {@link #provideKeyResponse}.
+     *
+     * @param keySetId identifies the saved key set to restore
+     */
+    @Override
+    public void restoreKeys(@NonNull byte[] keySetId)
+            throws NoDrmSchemeException
+    {
+        Log.v(TAG, "restoreKeys: keySetId: " + keySetId);
+
+        synchronized (mDrmLock) {
+
+            if (!mActiveDrmScheme) {
+                Log.w(TAG, "restoreKeys NoDrmSchemeException");
+                throw new NoDrmSchemeExceptionImpl("restoreKeys: Has to set a DRM scheme first.");
+            }
+
+            try {
+                mDrmObj.restoreKeys(mDrmSessionId, keySetId);
+            } catch (Exception e) {
+                Log.w(TAG, "restoreKeys Exception " + e);
+                throw e;
+            }
+
+        }   // synchronized
+    }
+
+
+    /**
+     * Read a DRM engine plugin String property value, given the property name string.
+     * <p>
+     * @param propertyName the property name
+     *
+     * Standard fields names are:
+     * {@link MediaDrm#PROPERTY_VENDOR}, {@link MediaDrm#PROPERTY_VERSION},
+     * {@link MediaDrm#PROPERTY_DESCRIPTION}, {@link MediaDrm#PROPERTY_ALGORITHMS}
+     */
+    @Override
+    @NonNull
+    public String getDrmPropertyString(@NonNull @MediaDrm.StringProperty String propertyName)
+            throws NoDrmSchemeException
+    {
+        Log.v(TAG, "getDrmPropertyString: propertyName: " + propertyName);
+
+        String value;
+        synchronized (mDrmLock) {
+
+            if (!mActiveDrmScheme && !mDrmConfigAllowed) {
+                Log.w(TAG, "getDrmPropertyString NoDrmSchemeException");
+                throw new NoDrmSchemeExceptionImpl("getDrmPropertyString: Has to prepareDrm() first.");
+            }
+
+            try {
+                value = mDrmObj.getPropertyString(propertyName);
+            } catch (Exception e) {
+                Log.w(TAG, "getDrmPropertyString Exception " + e);
+                throw e;
+            }
+        }   // synchronized
+
+        Log.v(TAG, "getDrmPropertyString: propertyName: " + propertyName + " --> value: " + value);
+
+        return value;
+    }
+
+
+    /**
+     * Set a DRM engine plugin String property value.
+     * <p>
+     * @param propertyName the property name
+     * @param value the property value
+     *
+     * Standard fields names are:
+     * {@link MediaDrm#PROPERTY_VENDOR}, {@link MediaDrm#PROPERTY_VERSION},
+     * {@link MediaDrm#PROPERTY_DESCRIPTION}, {@link MediaDrm#PROPERTY_ALGORITHMS}
+     */
+    @Override
+    public void setDrmPropertyString(@NonNull @MediaDrm.StringProperty String propertyName,
+                                     @NonNull String value)
+            throws NoDrmSchemeException
+    {
+        Log.v(TAG, "setDrmPropertyString: propertyName: " + propertyName + " value: " + value);
+
+        synchronized (mDrmLock) {
+
+            if ( !mActiveDrmScheme && !mDrmConfigAllowed ) {
+                Log.w(TAG, "setDrmPropertyString NoDrmSchemeException");
+                throw new NoDrmSchemeExceptionImpl("setDrmPropertyString: Has to prepareDrm() first.");
+            }
+
+            try {
+                mDrmObj.setPropertyString(propertyName, value);
+            } catch ( Exception e ) {
+                Log.w(TAG, "setDrmPropertyString Exception " + e);
+                throw e;
+            }
+        }   // synchronized
+    }
+
+    /**
+     * Encapsulates the DRM properties of the source.
+     */
+    public static final class DrmInfoImpl extends DrmInfo {
+        private Map<UUID, byte[]> mapPssh;
+        private UUID[] supportedSchemes;
+
+        /**
+         * Returns the PSSH info of the data source for each supported DRM scheme.
+         */
+        @Override
+        public Map<UUID, byte[]> getPssh() {
+            return mapPssh;
+        }
+
+        /**
+         * Returns the intersection of the data source and the device DRM schemes.
+         * It effectively identifies the subset of the source's DRM schemes which
+         * are supported by the device too.
+         */
+        @Override
+        public List<UUID> getSupportedSchemes() {
+            return Arrays.asList(supportedSchemes);
+        }
+
+        private DrmInfoImpl(Map<UUID, byte[]> Pssh, UUID[] SupportedSchemes) {
+            mapPssh = Pssh;
+            supportedSchemes = SupportedSchemes;
+        }
+
+        private DrmInfoImpl(Parcel parcel) {
+            Log.v(TAG, "DrmInfoImpl(" + parcel + ") size " + parcel.dataSize());
+
+            int psshsize = parcel.readInt();
+            byte[] pssh = new byte[psshsize];
+            parcel.readByteArray(pssh);
+
+            Log.v(TAG, "DrmInfoImpl() PSSH: " + arrToHex(pssh));
+            mapPssh = parsePSSH(pssh, psshsize);
+            Log.v(TAG, "DrmInfoImpl() PSSH: " + mapPssh);
+
+            int supportedDRMsCount = parcel.readInt();
+            supportedSchemes = new UUID[supportedDRMsCount];
+            for (int i = 0; i < supportedDRMsCount; i++) {
+                byte[] uuid = new byte[16];
+                parcel.readByteArray(uuid);
+
+                supportedSchemes[i] = bytesToUUID(uuid);
+
+                Log.v(TAG, "DrmInfoImpl() supportedScheme[" + i + "]: " +
+                      supportedSchemes[i]);
+            }
+
+            Log.v(TAG, "DrmInfoImpl() Parcel psshsize: " + psshsize +
+                  " supportedDRMsCount: " + supportedDRMsCount);
+        }
+
+        private DrmInfoImpl makeCopy() {
+            return new DrmInfoImpl(this.mapPssh, this.supportedSchemes);
+        }
+
+        private String arrToHex(byte[] bytes) {
+            String out = "0x";
+            for (int i = 0; i < bytes.length; i++) {
+                out += String.format("%02x", bytes[i]);
+            }
+
+            return out;
+        }
+
+        private UUID bytesToUUID(byte[] uuid) {
+            long msb = 0, lsb = 0;
+            for (int i = 0; i < 8; i++) {
+                msb |= ( ((long)uuid[i]   & 0xff) << (8 * (7 - i)) );
+                lsb |= ( ((long)uuid[i+8] & 0xff) << (8 * (7 - i)) );
+            }
+
+            return new UUID(msb, lsb);
+        }
+
+        private Map<UUID, byte[]> parsePSSH(byte[] pssh, int psshsize) {
+            Map<UUID, byte[]> result = new HashMap<UUID, byte[]>();
+
+            final int UUID_SIZE = 16;
+            final int DATALEN_SIZE = 4;
+
+            int len = psshsize;
+            int numentries = 0;
+            int i = 0;
+
+            while (len > 0) {
+                if (len < UUID_SIZE) {
+                    Log.w(TAG, String.format("parsePSSH: len is too short to parse " +
+                                             "UUID: (%d < 16) pssh: %d", len, psshsize));
+                    return null;
+                }
+
+                byte[] subset = Arrays.copyOfRange(pssh, i, i + UUID_SIZE);
+                UUID uuid = bytesToUUID(subset);
+                i += UUID_SIZE;
+                len -= UUID_SIZE;
+
+                // get data length
+                if (len < 4) {
+                    Log.w(TAG, String.format("parsePSSH: len is too short to parse " +
+                                             "datalen: (%d < 4) pssh: %d", len, psshsize));
+                    return null;
+                }
+
+                subset = Arrays.copyOfRange(pssh, i, i+DATALEN_SIZE);
+                int datalen = (ByteOrder.nativeOrder() == ByteOrder.LITTLE_ENDIAN) ?
+                    ((subset[3] & 0xff) << 24) | ((subset[2] & 0xff) << 16) |
+                    ((subset[1] & 0xff) <<  8) |  (subset[0] & 0xff)          :
+                    ((subset[0] & 0xff) << 24) | ((subset[1] & 0xff) << 16) |
+                    ((subset[2] & 0xff) <<  8) |  (subset[3] & 0xff) ;
+                i += DATALEN_SIZE;
+                len -= DATALEN_SIZE;
+
+                if (len < datalen) {
+                    Log.w(TAG, String.format("parsePSSH: len is too short to parse " +
+                                             "data: (%d < %d) pssh: %d", len, datalen, psshsize));
+                    return null;
+                }
+
+                byte[] data = Arrays.copyOfRange(pssh, i, i+datalen);
+
+                // skip the data
+                i += datalen;
+                len -= datalen;
+
+                Log.v(TAG, String.format("parsePSSH[%d]: <%s, %s> pssh: %d",
+                                         numentries, uuid, arrToHex(data), psshsize));
+                numentries++;
+                result.put(uuid, data);
+            }
+
+            return result;
+        }
+
+    };  // DrmInfoImpl
+
+    /**
+     * Thrown when a DRM method is called before preparing a DRM scheme through prepareDrm().
+     * Extends MediaDrm.MediaDrmException
+     */
+    public static final class NoDrmSchemeExceptionImpl extends NoDrmSchemeException {
+        public NoDrmSchemeExceptionImpl(String detailMessage) {
+            super(detailMessage);
+        }
+    }
+
+    /**
+     * Thrown when the device requires DRM provisioning but the provisioning attempt has
+     * failed due to a network error (Internet reachability, timeout, etc.).
+     * Extends MediaDrm.MediaDrmException
+     */
+    public static final class ProvisioningNetworkErrorExceptionImpl
+            extends ProvisioningNetworkErrorException {
+        public ProvisioningNetworkErrorExceptionImpl(String detailMessage) {
+            super(detailMessage);
+        }
+    }
+
+    /**
+     * Thrown when the device requires DRM provisioning but the provisioning attempt has
+     * failed due to the provisioning server denying the request.
+     * Extends MediaDrm.MediaDrmException
+     */
+    public static final class ProvisioningServerErrorExceptionImpl
+            extends ProvisioningServerErrorException {
+        public ProvisioningServerErrorExceptionImpl(String detailMessage) {
+            super(detailMessage);
+        }
+    }
+
+
+    private native void _prepareDrm(@NonNull byte[] uuid, @NonNull byte[] drmSessionId);
+
+        // Modular DRM helpers
+
+    private void prepareDrm_createDrmStep(@NonNull UUID uuid)
+            throws UnsupportedSchemeException {
+        Log.v(TAG, "prepareDrm_createDrmStep: UUID: " + uuid);
+
+        try {
+            mDrmObj = new MediaDrm(uuid);
+            Log.v(TAG, "prepareDrm_createDrmStep: Created mDrmObj=" + mDrmObj);
+        } catch (Exception e) { // UnsupportedSchemeException
+            Log.e(TAG, "prepareDrm_createDrmStep: MediaDrm failed with " + e);
+            throw e;
+        }
+    }
+
+    private void prepareDrm_openSessionStep(@NonNull UUID uuid)
+            throws NotProvisionedException, ResourceBusyException {
+        Log.v(TAG, "prepareDrm_openSessionStep: uuid: " + uuid);
+
+        // TODO: don't need an open session for a future specialKeyReleaseDrm mode but we should do
+        // it anyway so it raises provisioning error if needed. We'd rather handle provisioning
+        // at prepareDrm/openSession rather than getKeyRequest/provideKeyResponse
+        try {
+            mDrmSessionId = mDrmObj.openSession();
+            Log.v(TAG, "prepareDrm_openSessionStep: mDrmSessionId=" + mDrmSessionId);
+
+            // Sending it down to native/mediaserver to create the crypto object
+            // This call could simply fail due to bad player state, e.g., after play().
+            _prepareDrm(getByteArrayFromUUID(uuid), mDrmSessionId);
+            Log.v(TAG, "prepareDrm_openSessionStep: _prepareDrm/Crypto succeeded");
+
+        } catch (Exception e) { //ResourceBusyException, NotProvisionedException
+            Log.e(TAG, "prepareDrm_openSessionStep: open/crypto failed with " + e);
+            throw e;
+        }
+
+    }
+
+    private class ProvisioningThread extends Thread {
+        public static final int TIMEOUT_MS = 60000;
+
+        private UUID uuid;
+        private String urlStr;
+        private Object drmLock;
+        private MediaPlayer2Impl mediaPlayer;
+        private int status;
+        private boolean finished;
+        public  int status() {
+            return status;
+        }
+
+        public ProvisioningThread initialize(MediaDrm.ProvisionRequest request,
+                                          UUID uuid, MediaPlayer2Impl mediaPlayer) {
+            // lock is held by the caller
+            drmLock = mediaPlayer.mDrmLock;
+            this.mediaPlayer = mediaPlayer;
+
+            urlStr = request.getDefaultUrl() + "&signedRequest=" + new String(request.getData());
+            this.uuid = uuid;
+
+            status = PREPARE_DRM_STATUS_PREPARATION_ERROR;
+
+            Log.v(TAG, "HandleProvisioninig: Thread is initialised url: " + urlStr);
+            return this;
+        }
+
+        public void run() {
+
+            byte[] response = null;
+            boolean provisioningSucceeded = false;
+            try {
+                URL url = new URL(urlStr);
+                final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+                try {
+                    connection.setRequestMethod("POST");
+                    connection.setDoOutput(false);
+                    connection.setDoInput(true);
+                    connection.setConnectTimeout(TIMEOUT_MS);
+                    connection.setReadTimeout(TIMEOUT_MS);
+
+                    connection.connect();
+                    response = Streams.readFully(connection.getInputStream());
+
+                    Log.v(TAG, "HandleProvisioninig: Thread run: response " +
+                            response.length + " " + response);
+                } catch (Exception e) {
+                    status = PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR;
+                    Log.w(TAG, "HandleProvisioninig: Thread run: connect " + e + " url: " + url);
+                } finally {
+                    connection.disconnect();
+                }
+            } catch (Exception e)   {
+                status = PREPARE_DRM_STATUS_PROVISIONING_NETWORK_ERROR;
+                Log.w(TAG, "HandleProvisioninig: Thread run: openConnection " + e);
+            }
+
+            if (response != null) {
+                try {
+                    mDrmObj.provideProvisionResponse(response);
+                    Log.v(TAG, "HandleProvisioninig: Thread run: " +
+                            "provideProvisionResponse SUCCEEDED!");
+
+                    provisioningSucceeded = true;
+                } catch (Exception e) {
+                    status = PREPARE_DRM_STATUS_PROVISIONING_SERVER_ERROR;
+                    Log.w(TAG, "HandleProvisioninig: Thread run: " +
+                            "provideProvisionResponse " + e);
+                }
+            }
+
+            boolean succeeded = false;
+
+            final Executor drmEventExec;
+            final DrmEventCallback drmEventCb;
+            synchronized (mDrmEventCbLock) {
+                drmEventExec = mDrmEventExec;
+                drmEventCb = mDrmEventCb;
+            }
+            // non-blocking mode needs the lock
+            if (drmEventExec != null && drmEventCb != null) {
+
+                synchronized (drmLock) {
+                    // continuing with prepareDrm
+                    if (provisioningSucceeded) {
+                        succeeded = mediaPlayer.resumePrepareDrm(uuid);
+                        status = (succeeded) ?
+                                PREPARE_DRM_STATUS_SUCCESS :
+                                PREPARE_DRM_STATUS_PREPARATION_ERROR;
+                    }
+                    mediaPlayer.mDrmProvisioningInProgress = false;
+                    mediaPlayer.mPrepareDrmInProgress = false;
+                    if (!succeeded) {
+                        cleanDrmObj();  // cleaning up if it hasn't gone through while in the lock
+                    }
+                } // synchronized
+
+                // calling the callback outside the lock
+                drmEventExec.execute(() -> drmEventCb.onDrmPrepared(mediaPlayer, status));
+            } else {   // blocking mode already has the lock
+
+                // continuing with prepareDrm
+                if (provisioningSucceeded) {
+                    succeeded = mediaPlayer.resumePrepareDrm(uuid);
+                    status = (succeeded) ?
+                            PREPARE_DRM_STATUS_SUCCESS :
+                            PREPARE_DRM_STATUS_PREPARATION_ERROR;
+                }
+                mediaPlayer.mDrmProvisioningInProgress = false;
+                mediaPlayer.mPrepareDrmInProgress = false;
+                if (!succeeded) {
+                    cleanDrmObj();  // cleaning up if it hasn't gone through
+                }
+            }
+
+            finished = true;
+        }   // run()
+
+    }   // ProvisioningThread
+
+    private int HandleProvisioninig(UUID uuid) {
+        // the lock is already held by the caller
+
+        if (mDrmProvisioningInProgress) {
+            Log.e(TAG, "HandleProvisioninig: Unexpected mDrmProvisioningInProgress");
+            return PREPARE_DRM_STATUS_PREPARATION_ERROR;
+        }
+
+        MediaDrm.ProvisionRequest provReq = mDrmObj.getProvisionRequest();
+        if (provReq == null) {
+            Log.e(TAG, "HandleProvisioninig: getProvisionRequest returned null.");
+            return PREPARE_DRM_STATUS_PREPARATION_ERROR;
+        }
+
+        Log.v(TAG, "HandleProvisioninig provReq " +
+                " data: " + provReq.getData() + " url: " + provReq.getDefaultUrl());
+
+        // networking in a background thread
+        mDrmProvisioningInProgress = true;
+
+        mDrmProvisioningThread = new ProvisioningThread().initialize(provReq, uuid, this);
+        mDrmProvisioningThread.start();
+
+        int result;
+
+        // non-blocking: this is not the final result
+        final Executor drmEventExec;
+        final DrmEventCallback drmEventCb;
+        synchronized (mDrmEventCbLock) {
+            drmEventExec = mDrmEventExec;
+            drmEventCb = mDrmEventCb;
+        }
+        if (drmEventCb != null && drmEventExec != null) {
+            result = PREPARE_DRM_STATUS_SUCCESS;
+        } else {
+            // if blocking mode, wait till provisioning is done
+            try {
+                mDrmProvisioningThread.join();
+            } catch (Exception e) {
+                Log.w(TAG, "HandleProvisioninig: Thread.join Exception " + e);
+            }
+            result = mDrmProvisioningThread.status();
+            // no longer need the thread
+            mDrmProvisioningThread = null;
+        }
+
+        return result;
+    }
+
+    private boolean resumePrepareDrm(UUID uuid) {
+        Log.v(TAG, "resumePrepareDrm: uuid: " + uuid);
+
+        // mDrmLock is guaranteed to be held
+        boolean success = false;
+        try {
+            // resuming
+            prepareDrm_openSessionStep(uuid);
+
+            mDrmUUID = uuid;
+            mActiveDrmScheme = true;
+
+            success = true;
+        } catch (Exception e) {
+            Log.w(TAG, "HandleProvisioninig: Thread run _prepareDrm resume failed with " + e);
+            // mDrmObj clean up is done by the caller
+        }
+
+        return success;
+    }
+
+    private void resetDrmState() {
+        synchronized (mDrmLock) {
+            Log.v(TAG, "resetDrmState: " +
+                    " mDrmInfoImpl=" + mDrmInfoImpl +
+                    " mDrmProvisioningThread=" + mDrmProvisioningThread +
+                    " mPrepareDrmInProgress=" + mPrepareDrmInProgress +
+                    " mActiveDrmScheme=" + mActiveDrmScheme);
+
+            mDrmInfoResolved = false;
+            mDrmInfoImpl = null;
+
+            if (mDrmProvisioningThread != null) {
+                // timeout; relying on HttpUrlConnection
+                try {
+                    mDrmProvisioningThread.join();
+                }
+                catch (InterruptedException e) {
+                    Log.w(TAG, "resetDrmState: ProvThread.join Exception " + e);
+                }
+                mDrmProvisioningThread = null;
+            }
+
+            mPrepareDrmInProgress = false;
+            mActiveDrmScheme = false;
+
+            cleanDrmObj();
+        }   // synchronized
+    }
+
+    private void cleanDrmObj() {
+        // the caller holds mDrmLock
+        Log.v(TAG, "cleanDrmObj: mDrmObj=" + mDrmObj + " mDrmSessionId=" + mDrmSessionId);
+
+        if (mDrmSessionId != null)    {
+            mDrmObj.closeSession(mDrmSessionId);
+            mDrmSessionId = null;
+        }
+        if (mDrmObj != null) {
+            mDrmObj.release();
+            mDrmObj = null;
+        }
+    }
+
+    private static final byte[] getByteArrayFromUUID(@NonNull UUID uuid) {
+        long msb = uuid.getMostSignificantBits();
+        long lsb = uuid.getLeastSignificantBits();
+
+        byte[] uuidBytes = new byte[16];
+        for (int i = 0; i < 8; ++i) {
+            uuidBytes[i] = (byte)(msb >>> (8 * (7 - i)));
+            uuidBytes[8 + i] = (byte)(lsb >>> (8 * (7 - i)));
+        }
+
+        return uuidBytes;
+    }
+
+    // Modular DRM end
+
+    /*
+     * Test whether a given video scaling mode is supported.
+     */
+    private boolean isVideoScalingModeSupported(int mode) {
+        return (mode == VIDEO_SCALING_MODE_SCALE_TO_FIT ||
+                mode == VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING);
+    }
+
+    /** @hide */
+    static class TimeProvider implements MediaTimeProvider {
+        private static final String TAG = "MTP";
+        private static final long MAX_NS_WITHOUT_POSITION_CHECK = 5000000000L;
+        private static final long MAX_EARLY_CALLBACK_US = 1000;
+        private static final long TIME_ADJUSTMENT_RATE = 2;  /* meaning 1/2 */
+        private long mLastTimeUs = 0;
+        private MediaPlayer2Impl mPlayer;
+        private boolean mPaused = true;
+        private boolean mStopped = true;
+        private boolean mBuffering;
+        private long mLastReportedTime;
+        // since we are expecting only a handful listeners per stream, there is
+        // no need for log(N) search performance
+        private MediaTimeProvider.OnMediaTimeListener mListeners[];
+        private long mTimes[];
+        private Handler mEventHandler;
+        private boolean mRefresh = false;
+        private boolean mPausing = false;
+        private boolean mSeeking = false;
+        private static final int NOTIFY = 1;
+        private static final int NOTIFY_TIME = 0;
+        private static final int NOTIFY_STOP = 2;
+        private static final int NOTIFY_SEEK = 3;
+        private static final int NOTIFY_TRACK_DATA = 4;
+        private HandlerThread mHandlerThread;
+
+        /** @hide */
+        public boolean DEBUG = false;
+
+        public TimeProvider(MediaPlayer2Impl mp) {
+            mPlayer = mp;
+            try {
+                getCurrentTimeUs(true, false);
+            } catch (IllegalStateException e) {
+                // we assume starting position
+                mRefresh = true;
+            }
+
+            Looper looper;
+            if ((looper = Looper.myLooper()) == null &&
+                (looper = Looper.getMainLooper()) == null) {
+                // Create our own looper here in case MP was created without one
+                mHandlerThread = new HandlerThread("MediaPlayer2MTPEventThread",
+                      Process.THREAD_PRIORITY_FOREGROUND);
+                mHandlerThread.start();
+                looper = mHandlerThread.getLooper();
+            }
+            mEventHandler = new EventHandler(looper);
+
+            mListeners = new MediaTimeProvider.OnMediaTimeListener[0];
+            mTimes = new long[0];
+            mLastTimeUs = 0;
+        }
+
+        private void scheduleNotification(int type, long delayUs) {
+            // ignore time notifications until seek is handled
+            if (mSeeking && type == NOTIFY_TIME) {
+                return;
+            }
+
+            if (DEBUG) Log.v(TAG, "scheduleNotification " + type + " in " + delayUs);
+            mEventHandler.removeMessages(NOTIFY);
+            Message msg = mEventHandler.obtainMessage(NOTIFY, type, 0);
+            mEventHandler.sendMessageDelayed(msg, (int) (delayUs / 1000));
+        }
+
+        /** @hide */
+        public void close() {
+            mEventHandler.removeMessages(NOTIFY);
+            if (mHandlerThread != null) {
+                mHandlerThread.quitSafely();
+                mHandlerThread = null;
+            }
+        }
+
+        /** @hide */
+        protected void finalize() {
+            if (mHandlerThread != null) {
+                mHandlerThread.quitSafely();
+            }
+        }
+
+        /** @hide */
+        public void onNotifyTime() {
+            synchronized (this) {
+                if (DEBUG) Log.d(TAG, "onNotifyTime: ");
+                scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+            }
+        }
+
+        /** @hide */
+        public void onPaused(boolean paused) {
+            synchronized(this) {
+                if (DEBUG) Log.d(TAG, "onPaused: " + paused);
+                if (mStopped) { // handle as seek if we were stopped
+                    mStopped = false;
+                    mSeeking = true;
+                    scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
+                } else {
+                    mPausing = paused;  // special handling if player disappeared
+                    mSeeking = false;
+                    scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+                }
+            }
+        }
+
+        /** @hide */
+        public void onBuffering(boolean buffering) {
+            synchronized (this) {
+                if (DEBUG) Log.d(TAG, "onBuffering: " + buffering);
+                mBuffering = buffering;
+                scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+            }
+        }
+
+        /** @hide */
+        public void onStopped() {
+            synchronized(this) {
+                if (DEBUG) Log.d(TAG, "onStopped");
+                mPaused = true;
+                mStopped = true;
+                mSeeking = false;
+                mBuffering = false;
+                scheduleNotification(NOTIFY_STOP, 0 /* delay */);
+            }
+        }
+
+        /** @hide */
+        public void onSeekComplete(MediaPlayer2Impl mp) {
+            synchronized(this) {
+                mStopped = false;
+                mSeeking = true;
+                scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
+            }
+        }
+
+        /** @hide */
+        public void onNewPlayer() {
+            if (mRefresh) {
+                synchronized(this) {
+                    mStopped = false;
+                    mSeeking = true;
+                    mBuffering = false;
+                    scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
+                }
+            }
+        }
+
+        private synchronized void notifySeek() {
+            mSeeking = false;
+            try {
+                long timeUs = getCurrentTimeUs(true, false);
+                if (DEBUG) Log.d(TAG, "onSeekComplete at " + timeUs);
+
+                for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) {
+                    if (listener == null) {
+                        break;
+                    }
+                    listener.onSeek(timeUs);
+                }
+            } catch (IllegalStateException e) {
+                // we should not be there, but at least signal pause
+                if (DEBUG) Log.d(TAG, "onSeekComplete but no player");
+                mPausing = true;  // special handling if player disappeared
+                notifyTimedEvent(false /* refreshTime */);
+            }
+        }
+
+        private synchronized void notifyTrackData(Pair<SubtitleTrack, byte[]> trackData) {
+            SubtitleTrack track = trackData.first;
+            byte[] data = trackData.second;
+            track.onData(data, true /* eos */, ~0 /* runID: keep forever */);
+        }
+
+        private synchronized void notifyStop() {
+            for (MediaTimeProvider.OnMediaTimeListener listener: mListeners) {
+                if (listener == null) {
+                    break;
+                }
+                listener.onStop();
+            }
+        }
+
+        private int registerListener(MediaTimeProvider.OnMediaTimeListener listener) {
+            int i = 0;
+            for (; i < mListeners.length; i++) {
+                if (mListeners[i] == listener || mListeners[i] == null) {
+                    break;
+                }
+            }
+
+            // new listener
+            if (i >= mListeners.length) {
+                MediaTimeProvider.OnMediaTimeListener[] newListeners =
+                    new MediaTimeProvider.OnMediaTimeListener[i + 1];
+                long[] newTimes = new long[i + 1];
+                System.arraycopy(mListeners, 0, newListeners, 0, mListeners.length);
+                System.arraycopy(mTimes, 0, newTimes, 0, mTimes.length);
+                mListeners = newListeners;
+                mTimes = newTimes;
+            }
+
+            if (mListeners[i] == null) {
+                mListeners[i] = listener;
+                mTimes[i] = MediaTimeProvider.NO_TIME;
+            }
+            return i;
+        }
+
+        public void notifyAt(
+                long timeUs, MediaTimeProvider.OnMediaTimeListener listener) {
+            synchronized(this) {
+                if (DEBUG) Log.d(TAG, "notifyAt " + timeUs);
+                mTimes[registerListener(listener)] = timeUs;
+                scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+            }
+        }
+
+        public void scheduleUpdate(MediaTimeProvider.OnMediaTimeListener listener) {
+            synchronized(this) {
+                if (DEBUG) Log.d(TAG, "scheduleUpdate");
+                int i = registerListener(listener);
+
+                if (!mStopped) {
+                    mTimes[i] = 0;
+                    scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+                }
+            }
+        }
+
+        public void cancelNotifications(
+                MediaTimeProvider.OnMediaTimeListener listener) {
+            synchronized(this) {
+                int i = 0;
+                for (; i < mListeners.length; i++) {
+                    if (mListeners[i] == listener) {
+                        System.arraycopy(mListeners, i + 1,
+                                mListeners, i, mListeners.length - i - 1);
+                        System.arraycopy(mTimes, i + 1,
+                                mTimes, i, mTimes.length - i - 1);
+                        mListeners[mListeners.length - 1] = null;
+                        mTimes[mTimes.length - 1] = NO_TIME;
+                        break;
+                    } else if (mListeners[i] == null) {
+                        break;
+                    }
+                }
+
+                scheduleNotification(NOTIFY_TIME, 0 /* delay */);
+            }
+        }
+
+        private synchronized void notifyTimedEvent(boolean refreshTime) {
+            // figure out next callback
+            long nowUs;
+            try {
+                nowUs = getCurrentTimeUs(refreshTime, true);
+            } catch (IllegalStateException e) {
+                // assume we paused until new player arrives
+                mRefresh = true;
+                mPausing = true; // this ensures that call succeeds
+                nowUs = getCurrentTimeUs(refreshTime, true);
+            }
+            long nextTimeUs = nowUs;
+
+            if (mSeeking) {
+                // skip timed-event notifications until seek is complete
+                return;
+            }
+
+            if (DEBUG) {
+                StringBuilder sb = new StringBuilder();
+                sb.append("notifyTimedEvent(").append(mLastTimeUs).append(" -> ")
+                        .append(nowUs).append(") from {");
+                boolean first = true;
+                for (long time: mTimes) {
+                    if (time == NO_TIME) {
+                        continue;
+                    }
+                    if (!first) sb.append(", ");
+                    sb.append(time);
+                    first = false;
+                }
+                sb.append("}");
+                Log.d(TAG, sb.toString());
+            }
+
+            Vector<MediaTimeProvider.OnMediaTimeListener> activatedListeners =
+                new Vector<MediaTimeProvider.OnMediaTimeListener>();
+            for (int ix = 0; ix < mTimes.length; ix++) {
+                if (mListeners[ix] == null) {
+                    break;
+                }
+                if (mTimes[ix] <= NO_TIME) {
+                    // ignore, unless we were stopped
+                } else if (mTimes[ix] <= nowUs + MAX_EARLY_CALLBACK_US) {
+                    activatedListeners.add(mListeners[ix]);
+                    if (DEBUG) Log.d(TAG, "removed");
+                    mTimes[ix] = NO_TIME;
+                } else if (nextTimeUs == nowUs || mTimes[ix] < nextTimeUs) {
+                    nextTimeUs = mTimes[ix];
+                }
+            }
+
+            if (nextTimeUs > nowUs && !mPaused) {
+                // schedule callback at nextTimeUs
+                if (DEBUG) Log.d(TAG, "scheduling for " + nextTimeUs + " and " + nowUs);
+                mPlayer.notifyAt(nextTimeUs);
+            } else {
+                mEventHandler.removeMessages(NOTIFY);
+                // no more callbacks
+            }
+
+            for (MediaTimeProvider.OnMediaTimeListener listener: activatedListeners) {
+                listener.onTimedEvent(nowUs);
+            }
+        }
+
+        public long getCurrentTimeUs(boolean refreshTime, boolean monotonic)
+                throws IllegalStateException {
+            synchronized (this) {
+                // we always refresh the time when the paused-state changes, because
+                // we expect to have received the pause-change event delayed.
+                if (mPaused && !refreshTime) {
+                    return mLastReportedTime;
+                }
+
+                try {
+                    mLastTimeUs = mPlayer.getCurrentPosition() * 1000L;
+                    mPaused = !mPlayer.isPlaying() || mBuffering;
+                    if (DEBUG) Log.v(TAG, (mPaused ? "paused" : "playing") + " at " + mLastTimeUs);
+                } catch (IllegalStateException e) {
+                    if (mPausing) {
+                        // if we were pausing, get last estimated timestamp
+                        mPausing = false;
+                        if (!monotonic || mLastReportedTime < mLastTimeUs) {
+                            mLastReportedTime = mLastTimeUs;
+                        }
+                        mPaused = true;
+                        if (DEBUG) Log.d(TAG, "illegal state, but pausing: estimating at " + mLastReportedTime);
+                        return mLastReportedTime;
+                    }
+                    // TODO get time when prepared
+                    throw e;
+                }
+                if (monotonic && mLastTimeUs < mLastReportedTime) {
+                    /* have to adjust time */
+                    if (mLastReportedTime - mLastTimeUs > 1000000) {
+                        // schedule seeked event if time jumped significantly
+                        // TODO: do this properly by introducing an exception
+                        mStopped = false;
+                        mSeeking = true;
+                        scheduleNotification(NOTIFY_SEEK, 0 /* delay */);
+                    }
+                } else {
+                    mLastReportedTime = mLastTimeUs;
+                }
+
+                return mLastReportedTime;
+            }
+        }
+
+        private class EventHandler extends Handler {
+            public EventHandler(Looper looper) {
+                super(looper);
+            }
+
+            @Override
+            public void handleMessage(Message msg) {
+                if (msg.what == NOTIFY) {
+                    switch (msg.arg1) {
+                    case NOTIFY_TIME:
+                        notifyTimedEvent(true /* refreshTime */);
+                        break;
+                    case NOTIFY_STOP:
+                        notifyStop();
+                        break;
+                    case NOTIFY_SEEK:
+                        notifySeek();
+                        break;
+                    case NOTIFY_TRACK_DATA:
+                        notifyTrackData((Pair<SubtitleTrack, byte[]>)msg.obj);
+                        break;
+                    }
+                }
+            }
+        }
+    }
+}
diff --git a/media/java/android/media/MediaPlayerBase.java b/media/java/android/media/MediaPlayerBase.java
index 980c70f..0efec901 100644
--- a/media/java/android/media/MediaPlayerBase.java
+++ b/media/java/android/media/MediaPlayerBase.java
@@ -16,49 +16,49 @@
 
 package android.media;
 
-import android.media.session.PlaybackState;
-import android.os.Handler;
+import android.media.MediaSession2.PlaylistParams;
+
+import java.util.List;
+import java.util.concurrent.Executor;
 
 /**
- * Tentative interface for all media players that want media session.
- * APIs are named to avoid conflicts with MediaPlayer APIs.
- * All calls should be asynchrounous.
- *
+ * Base interfaces for all media players that want media session.
  * @hide
  */
-// TODO(wjia) Finalize the list of MediaPlayer2, which MediaPlayerBase's APIs will be come from.
 public abstract class MediaPlayerBase {
     /**
-     * Listens change in {@link PlaybackState}.
+     * Listens change in {@link PlaybackState2}.
      */
     public interface PlaybackListener {
         /**
-         * Called when {@link PlaybackState} for this player is changed.
+         * Called when {@link PlaybackState2} for this player is changed.
          */
-        void onPlaybackChanged(PlaybackState state);
+        void onPlaybackChanged(PlaybackState2 state);
     }
 
-    // TODO(jaewan): setDataSources()?
-    // TODO(jaewan): Add release() or do that in stop()?
-
-    // TODO(jaewan): Add set/getSupportedActions().
     public abstract void play();
+    public abstract void prepare();
     public abstract void pause();
     public abstract void stop();
     public abstract void skipToPrevious();
     public abstract void skipToNext();
+    public abstract void seekTo(long pos);
+    public abstract void fastFoward();
+    public abstract void rewind();
 
-    // Currently PlaybackState's error message is the content title (for testing only)
-    // TODO(jaewan): Add metadata support
-    public abstract PlaybackState getPlaybackState();
+    public abstract PlaybackState2 getPlaybackState();
+    public abstract AudioAttributes getAudioAttributes();
+
+    public abstract void setPlaylist(List<MediaItem2> item, PlaylistParams param);
+    public abstract void setCurrentPlaylistItem(int index);
 
     /**
      * Add a {@link PlaybackListener} to be invoked when the playback state is changed.
      *
+     * @param executor the Handler that will receive the listener
      * @param listener the listener that will be run
-     * @param handler the Handler that will receive the listener
      */
-    public abstract void addPlaybackListener(PlaybackListener listener, Handler handler);
+    public abstract void addPlaybackListener(Executor executor, PlaybackListener listener);
 
     /**
      * Remove previously added {@link PlaybackListener}.
diff --git a/media/java/android/media/MediaSession2.java b/media/java/android/media/MediaSession2.java
index 6fdf7a8..7dffd40 100644
--- a/media/java/android/media/MediaSession2.java
+++ b/media/java/android/media/MediaSession2.java
@@ -16,14 +16,14 @@
 
 package android.media;
 
+import android.annotation.CallbackExecutor;
+import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.app.Activity;
+import android.annotation.SystemApi;
 import android.app.PendingIntent;
 import android.content.Context;
 import android.content.Intent;
-import android.media.AudioAttributes;
-import android.media.AudioManager;
 import android.media.MediaPlayerBase.PlaybackListener;
 import android.media.session.MediaSession;
 import android.media.session.MediaSession.Callback;
@@ -39,8 +39,11 @@
 import android.text.TextUtils;
 import android.util.ArraySet;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.Executor;
 
 /**
  * Allows a media app to expose its transport controls and playback information in a process to
@@ -74,12 +77,6 @@
  * @see MediaSessionService2
  * @hide
  */
-// TODO(jaewan): Unhide
-// TODO(jaewan): Revisit comments. Currently it's borrowed from the MediaSession.
-// TODO(jaewan): Should we support thread safe? It may cause tricky issue such as b/63797089
-// TODO(jaewan): Should we make APIs for MediaSessionService2 public? It's helpful for
-//               developers that doesn't want to override from Browser, but user may not use this
-//               correctly.
 public class MediaSession2 implements AutoCloseable {
     private final MediaSession2Provider mProvider;
 
@@ -346,7 +343,8 @@
         /**
          * Called when a controller set rating on the currently playing contents.
          *
-         * @param
+         * @param controller controller information
+         * @param rating new rating from the controller
          */
         public void onSetRating(@NonNull ControllerInfo controller, @NonNull Rating2 rating) { }
 
@@ -426,7 +424,7 @@
         /**
          * Override to handle requests to play a specific media item represented by a URI.
          */
-        public void prepareFromUri(@NonNull ControllerInfo controller,
+        public void onPrepareFromUri(@NonNull ControllerInfo controller,
                 @NonNull Uri uri, @Nullable Bundle extras) { }
 
         /**
@@ -461,6 +459,7 @@
         final Context mContext;
         final MediaPlayerBase mPlayer;
         String mId;
+        Executor mCallbackExecutor;
         C mCallback;
         VolumeProvider mVolumeProvider;
         int mRatingType;
@@ -523,7 +522,7 @@
         /**
          * Set an intent for launching UI for this Session. This can be used as a
          * quick link to an ongoing media screen. The intent should be for an
-         * activity that may be started using {@link Activity#startActivity(Intent)}.
+         * activity that may be started using {@link Context#startActivity(Intent)}.
          *
          * @param pi The intent to launch to show UI for this session.
          */
@@ -551,12 +550,21 @@
         }
 
         /**
-         * Set {@link SessionCallback}.
+         * Set callback for the session.
          *
+         * @param executor callback executor
          * @param callback session callback.
          * @return
          */
-        public T setSessionCallback(@Nullable C callback) {
+        public T setSessionCallback(@NonNull @CallbackExecutor Executor executor,
+                @NonNull C callback) {
+            if (executor == null) {
+                throw new IllegalArgumentException("executor shouldn't be null");
+            }
+            if (callback == null) {
+                throw new IllegalArgumentException("callback shouldn't be null");
+            }
+            mCallbackExecutor = executor;
             mCallback = callback;
             return (T) this;
         }
@@ -568,7 +576,7 @@
          * @throws IllegalStateException if the session with the same id is already exists for the
          *      package.
          */
-        public abstract MediaSession2 build() throws IllegalStateException;
+        public abstract MediaSession2 build();
     }
 
     /**
@@ -586,12 +594,12 @@
         }
 
         @Override
-        public MediaSession2 build() throws IllegalStateException {
+        public MediaSession2 build() {
             if (mCallback == null) {
                 mCallback = new SessionCallback();
             }
-            return new MediaSession2(mContext, mPlayer, mId, mCallback,
-                    mVolumeProvider, mRatingType, mSessionActivity);
+            return new MediaSession2(mContext, mPlayer, mId, mVolumeProvider, mRatingType,
+                    mSessionActivity, mCallbackExecutor, mCallback);
         }
     }
 
@@ -611,7 +619,7 @@
                 IMediaSession2Callback callback) {
             mProvider = ApiLoader.getProvider(context)
                     .createMediaSession2ControllerInfoProvider(
-                            this, context, uid, pid, packageName, callback);
+                            context, this, uid, pid, packageName, callback);
         }
 
         /**
@@ -639,11 +647,7 @@
             return mProvider.isTrusted_impl();
         }
 
-        /**
-         * @hide
-         * @return
-         */
-        // TODO(jaewan): SystemApi
+        @SystemApi
         public ControllerInfoProvider getProvider() {
             return mProvider;
         }
@@ -842,28 +846,79 @@
      * Parameter for the playlist.
      */
     // TODO(jaewan): add fromBundle()/toBundle()
-    public class PlaylistParam {
+    public static class PlaylistParams {
+        /**
+         * @hide
+         */
+        @IntDef({REPEAT_MODE_NONE, REPEAT_MODE_ONE, REPEAT_MODE_ALL,
+                REPEAT_MODE_GROUP})
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface RepeatMode {}
+
+        /**
+         * Playback will be stopped at the end of the playing media list.
+         */
+        public static final int REPEAT_MODE_NONE = 0;
+
+        /**
+         * Playback of the current playing media item will be repeated.
+         */
+        public static final int REPEAT_MODE_ONE = 1;
+
+        /**
+         * Playing media list will be repeated.
+         */
+        public static final int REPEAT_MODE_ALL = 2;
+
+        /**
+         * Playback of the playing media group will be repeated.
+         * A group is a logical block of media items which is specified in the section 5.7 of the
+         * Bluetooth AVRCP 1.6.
+         */
+        public static final int REPEAT_MODE_GROUP = 3;
+
+        /**
+         * @hide
+         */
+        @IntDef({SHUFFLE_MODE_NONE, SHUFFLE_MODE_ALL, SHUFFLE_MODE_GROUP})
+        @Retention(RetentionPolicy.SOURCE)
+        public @interface ShuffleMode {}
+
+        /**
+         * Media list will be played in order.
+         */
+        public static final int SHUFFLE_MODE_NONE = 0;
+
+        /**
+         * Media list will be played in shuffled order.
+         */
+        public static final int SHUFFLE_MODE_ALL = 1;
+
+        /**
+         * Media group will be played in shuffled order.
+         * A group is a logical block of media items which is specified in the section 5.7 of the
+         * Bluetooth AVRCP 1.6.
+         */
+        public static final int SHUFFLE_MODE_GROUP = 2;
+
+        private @RepeatMode int mRepeatMode;
+        private @ShuffleMode int mShuffleMode;
+
         private MediaMetadata2 mPlaylistMetadata;
 
-        // It's mixture of shuffle mode and repeat mode. Needs to be separated for avrcp 1.6 support
-        // PlaybackState#REPEAT_MODE_ALL
-        // PlaybackState#REPEAT_MODE_GROUP <- for avrcp 1.6
-        // PlaybackState#REPEAT_MODE_INVALID
-        // PlaybackState#REPEAT_MODE_NONE
-        // PlaybackState#REPEAT_MODE_ONE
-        // PlaybackState#SHUFFLE_MODE_ALL
-        // PlaybackState#SHUFFLE_MODE_GROUP <- for avrcp 1.6
-        // PlaybackState#SHUFFLE_MODE_INVALID
-        // PlaybackState#SHUFFLE_MODE_NONE
-        private int mLoopingMode;
-
-        public PlaylistParam(int loopingMode, @Nullable MediaMetadata2 playlistMetadata) {
-            mLoopingMode = loopingMode;
+        public PlaylistParams(@RepeatMode int repeatMode, @ShuffleMode int shuffleMode,
+                @Nullable MediaMetadata2 playlistMetadata) {
+            mRepeatMode = repeatMode;
+            mShuffleMode = shuffleMode;
             mPlaylistMetadata = playlistMetadata;
         }
 
-        public int getLoopingMode() {
-            return mLoopingMode;
+        public @RepeatMode int getRepeatMode() {
+            return mRepeatMode;
+        }
+
+        public @ShuffleMode int getShuffleMode() {
+            return mShuffleMode;
         }
 
         public MediaMetadata2 getPlaylistMetadata() {
@@ -885,26 +940,25 @@
      *       framework had to add heuristics to figure out if an app is
      * @hide
      */
-    MediaSession2(Context context, MediaPlayerBase player, String id,
-            SessionCallback callback, VolumeProvider volumeProvider, int ratingType,
-            PendingIntent sessionActivity) {
+
+    MediaSession2(Context context, MediaPlayerBase player, String id, VolumeProvider volumeProvider,
+            int ratingType, PendingIntent sessionActivity, Executor callbackExecutor,
+            SessionCallback callback) {
         super();
-        mProvider = createProvider(context, player, id, callback,
-                volumeProvider, ratingType, sessionActivity);
+        mProvider = createProvider(context, player, id, volumeProvider, ratingType, sessionActivity,
+                callbackExecutor, callback
+        );
     }
 
     MediaSession2Provider createProvider(Context context, MediaPlayerBase player, String id,
-            SessionCallback callback, VolumeProvider volumeProvider, int ratingType,
-            PendingIntent sessionActivity) {
+            VolumeProvider volumeProvider, int ratingType, PendingIntent sessionActivity,
+            Executor callbackExecutor, SessionCallback callback) {
         return ApiLoader.getProvider(context)
-                .createMediaSession2(this, context, player, id, callback,
-                        volumeProvider, ratingType, sessionActivity);
+                .createMediaSession2(context, this, player, id, volumeProvider, ratingType,
+                        sessionActivity, callbackExecutor, callback);
     }
 
-    /**
-     * @hide
-     */
-    // TODO(jaewan): SystemApi
+    @SystemApi
     public MediaSession2Provider getProvider() {
         return mProvider;
     }
@@ -934,10 +988,8 @@
      * @param volumeProvider a volume provider
      * @see #setPlayer(MediaPlayerBase)
      * @see Builder#setVolumeProvider(VolumeProvider)
-     * @throws IllegalArgumentException if a parameter is {@code null}.
      */
-    public void setPlayer(@NonNull MediaPlayerBase player, @NonNull VolumeProvider volumeProvider)
-            throws IllegalArgumentException {
+    public void setPlayer(@NonNull MediaPlayerBase player, @NonNull VolumeProvider volumeProvider) {
         mProvider.setPlayer_impl(player, volumeProvider);
     }
 
@@ -954,10 +1006,10 @@
     }
 
     /**
-     * Returns the {@link SessionToken} for creating {@link MediaController2}.
+     * Returns the {@link SessionToken2} for creating {@link MediaController2}.
      */
     public @NonNull
-    SessionToken getToken() {
+    SessionToken2 getToken() {
         return mProvider.getToken_impl();
     }
 
@@ -1153,7 +1205,7 @@
         // To match with KEYCODE_MEDIA_SKIP_BACKWARD
     }
 
-    public void setPlaylist(@NonNull List<MediaItem2> playlist, @NonNull PlaylistParam param) {
+    public void setPlaylist(@NonNull List<MediaItem2> playlist, @NonNull PlaylistParams param) {
         mProvider.setPlaylist_impl(playlist, param);
     }
 }
diff --git a/media/java/android/media/MediaSessionService2.java b/media/java/android/media/MediaSessionService2.java
index 1a12d68..6b2de06 100644
--- a/media/java/android/media/MediaSessionService2.java
+++ b/media/java/android/media/MediaSessionService2.java
@@ -23,7 +23,6 @@
 import android.app.Service;
 import android.content.Intent;
 import android.media.MediaSession2.ControllerInfo;
-import android.media.session.PlaybackState;
 import android.media.update.ApiLoader;
 import android.media.update.MediaSessionService2Provider;
 import android.os.IBinder;
@@ -89,7 +88,7 @@
  * rejected, the controller will unbind. If it's accepted, the controller will be available to use
  * and keep binding.
  * <p>
- * When playback is started for this session service, {@link #onUpdateNotification(PlaybackState)}
+ * When playback is started for this session service, {@link #onUpdateNotification(PlaybackState2)}
  * is called and service would become a foreground service. It's needed to keep playback after the
  * controller is destroyed. The session service becomes background service when the playback is
  * stopped.
@@ -99,20 +98,8 @@
  * Any app can bind to the session service with controller, but the controller can be used only if
  * the session service accepted the connection request through
  * {@link MediaSession2.SessionCallback#onConnect(ControllerInfo)}.
- *
  * @hide
  */
-// TODO(jaewan): Unhide
-// TODO(jaewan): Can we clean up sessions in onDestroy() automatically instead?
-//               What about currently running SessionCallback when the onDestroy() is called?
-// TODO(jaewan): Protect this with system|privilleged permission - Q.
-// TODO(jaewan): Add permission check for the service to know incoming connection request.
-//               Follow-up questions: What about asking a XML for list of white/black packages for
-//                                    allowing enumeration?
-//                                    We can read the information even when the service is started,
-//                                    so SessionManager.getXXXXService() can only return apps
-//                                    TODO(jaewan): Will be the black/white listing persistent?
-//                                                  In other words, can we cache the rejection?
 public abstract class MediaSessionService2 extends Service {
     private final MediaSessionService2Provider mProvider;
 
@@ -179,7 +166,7 @@
      * @return a {@link MediaNotification}. If it's {@code null}, notification wouldn't be shown.
      */
     // TODO(jaewan): Also add metadata
-    public MediaNotification onUpdateNotification(PlaybackState state) {
+    public MediaNotification onUpdateNotification(PlaybackState2 state) {
         return mProvider.onUpdateNotification_impl(state);
     }
 
@@ -213,7 +200,7 @@
     }
 
     /**
-     * Returned by {@link #onUpdateNotification(PlaybackState)} for making session service
+     * Returned by {@link #onUpdateNotification(PlaybackState2)} for making session service
      * foreground service to keep playback running in the background. It's highly recommended to
      * show media style notification here.
      */
diff --git a/media/java/android/media/PlaybackState2.java b/media/java/android/media/PlaybackState2.java
index 3740aea..04f211d 100644
--- a/media/java/android/media/PlaybackState2.java
+++ b/media/java/android/media/PlaybackState2.java
@@ -17,6 +17,7 @@
 package android.media;
 
 import android.annotation.IntDef;
+import android.os.Bundle;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -27,11 +28,11 @@
  * the current playback position and extra.
  * @hide
  */
-// TODO(jaewan): Move to updatable
-// TODO(jaewan): Add fromBundle() toBundle()
 public final class PlaybackState2 {
     private static final String TAG = "PlaybackState2";
 
+    private static final String KEY_STATE = "android.media.playbackstate2.state";
+
     // TODO(jaewan): Replace states from MediaPlayer2
     /**
      * @hide
@@ -97,7 +98,7 @@
     private final long mUpdateTime;
     private final long mActiveItemId;
 
-    private PlaybackState2(int state, long position, long updateTime, float speed,
+    public PlaybackState2(int state, long position, long updateTime, float speed,
             long bufferedPosition, long activeItemId, CharSequence error) {
         mState = state;
         mPosition = position;
@@ -129,14 +130,8 @@
      * <li> {@link PlaybackState2#STATE_STOPPED}</li>
      * <li> {@link PlaybackState2#STATE_PLAYING}</li>
      * <li> {@link PlaybackState2#STATE_PAUSED}</li>
-     * <li> {@link PlaybackState2#STATE_FAST_FORWARDING}</li>
-     * <li> {@link PlaybackState2#STATE_REWINDING}</li>
      * <li> {@link PlaybackState2#STATE_BUFFERING}</li>
      * <li> {@link PlaybackState2#STATE_ERROR}</li>
-     * <li> {@link PlaybackState2#STATE_CONNECTING}</li>
-     * <li> {@link PlaybackState2#STATE_SKIPPING_TO_PREVIOUS}</li>
-     * <li> {@link PlaybackState2#STATE_SKIPPING_TO_NEXT}</li>
-     * <li> {@link PlaybackState2#STATE_SKIPPING_TO_QUEUE_ITEM}</li>
      * </ul>
      */
     @State
@@ -197,4 +192,24 @@
     public long getCurrentPlaylistItemIndex() {
         return mActiveItemId;
     }
+
+    /**
+     * @return Bundle object for this to share between processes.
+     */
+    public Bundle toBundle() {
+        // TODO(jaewan): Include other variables.
+        Bundle bundle = new Bundle();
+        bundle.putInt(KEY_STATE, mState);
+        return bundle;
+    }
+
+    /**
+     * @param bundle input
+     * @return
+     */
+    public static PlaybackState2 fromBundle(Bundle bundle) {
+        // TODO(jaewan): Include other variables.
+        final int state = bundle.getInt(KEY_STATE);
+        return new PlaybackState2(state, 0, 0, 0, 0, 0, null);
+    }
 }
\ No newline at end of file
diff --git a/media/java/android/media/Rating2.java b/media/java/android/media/Rating2.java
index 67e5e72..93aea6f 100644
--- a/media/java/android/media/Rating2.java
+++ b/media/java/android/media/Rating2.java
@@ -32,7 +32,6 @@
  * through one of the factory methods.
  * @hide
  */
-// TODO(jaewan): Move this to updatable
 public final class Rating2 {
     private static final String TAG = "Rating2";
 
diff --git a/media/java/android/media/SessionToken.java b/media/java/android/media/SessionToken2.java
similarity index 94%
rename from media/java/android/media/SessionToken.java
rename to media/java/android/media/SessionToken2.java
index 53fc24a..0abb852 100644
--- a/media/java/android/media/SessionToken.java
+++ b/media/java/android/media/SessionToken2.java
@@ -37,10 +37,8 @@
  * It can be also obtained by {@link MediaSessionManager}.
  * @hide
  */
-// TODO(jaewan): Unhide. SessionToken2?
 // TODO(jaewan): Move Token to updatable!
-// TODO(jaewan): Find better name for this (SessionToken or Session2Token)
-public final class SessionToken {
+public final class SessionToken2 {
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(value = {TYPE_SESSION, TYPE_SESSION_SERVICE, TYPE_LIBRARY_SERVICE})
     public @interface TokenType {
@@ -75,7 +73,7 @@
      */
     // TODO(jaewan): UID is also needed.
     // TODO(jaewan): Unhide
-    public SessionToken(@TokenType int type, @NonNull String packageName, @NonNull String id,
+    public SessionToken2(@TokenType int type, @NonNull String packageName, @NonNull String id,
             @Nullable String serviceName, @Nullable IMediaSession2 sessionBinder) {
         // TODO(jaewan): Add sanity check.
         mType = type;
@@ -102,7 +100,7 @@
             return false;
         if (getClass() != obj.getClass())
             return false;
-        SessionToken other = (SessionToken) obj;
+        SessionToken2 other = (SessionToken2) obj;
         if (!mPackageName.equals(other.getPackageName())
                 || !mServiceName.equals(other.getServiceName())
                 || !mId.equals(other.getId())
@@ -168,7 +166,7 @@
      * @param bundle
      * @return
      */
-    public static SessionToken fromBundle(@NonNull Bundle bundle) {
+    public static SessionToken2 fromBundle(@NonNull Bundle bundle) {
         if (bundle == null) {
             return null;
         }
@@ -202,7 +200,7 @@
         // TODO(jaewan): Revisit here when we add connection callback to the session for individual
         //               controller's permission check. With it, sessionBinder should be available
         //               if and only if for session, not session service.
-        return new SessionToken(type, packageName, id, serviceName,
+        return new SessionToken2(type, packageName, id, serviceName,
                 sessionBinder != null ? IMediaSession2.Stub.asInterface(sessionBinder) : null);
     }
 
@@ -210,7 +208,6 @@
      * Create a {@link Bundle} from this token to share it across processes.
      *
      * @return Bundle
-     * @hide
      */
     public Bundle toBundle() {
         Bundle bundle = new Bundle();
diff --git a/media/java/android/media/session/MediaSessionManager.java b/media/java/android/media/session/MediaSessionManager.java
index 6a9f04a..81b4603 100644
--- a/media/java/android/media/session/MediaSessionManager.java
+++ b/media/java/android/media/session/MediaSessionManager.java
@@ -28,8 +28,7 @@
 import android.media.IRemoteVolumeController;
 import android.media.MediaSession2;
 import android.media.MediaSessionService2;
-import android.media.SessionToken;
-import android.media.session.ISessionManager;
+import android.media.SessionToken2;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
@@ -342,11 +341,11 @@
      * @hide
      */
     // TODO(jaewan): System API
-    public SessionToken createSessionToken(@NonNull String callingPackage, @NonNull String id,
+    public SessionToken2 createSessionToken(@NonNull String callingPackage, @NonNull String id,
             @NonNull IMediaSession2 binder) {
         try {
             Bundle bundle = mService.createSessionToken(callingPackage, id, binder);
-            return SessionToken.fromBundle(bundle);
+            return SessionToken2.fromBundle(bundle);
         } catch (RemoteException e) {
             Log.wtf(TAG, "Cannot communicate with the service.", e);
         }
@@ -354,7 +353,7 @@
     }
 
     /**
-     * Get {@link List} of {@link SessionToken} whose sessions are active now. This list represents
+     * Get {@link List} of {@link SessionToken2} whose sessions are active now. This list represents
      * active sessions regardless of whether they're {@link MediaSession2} or
      * {@link MediaSessionService2}.
      *
@@ -364,7 +363,7 @@
     // TODO(jaewan): Unhide
     // TODO(jaewan): Protect this with permission.
     // TODO(jaewna): Add listener for change in lists.
-    public List<SessionToken> getActiveSessionTokens() {
+    public List<SessionToken2> getActiveSessionTokens() {
         try {
             List<Bundle> bundles = mService.getSessionTokens(
                     /* activeSessionOnly */ true, /* sessionServiceOnly */ false);
@@ -376,7 +375,7 @@
     }
 
     /**
-     * Get {@link List} of {@link SessionToken} for {@link MediaSessionService2} regardless of their
+     * Get {@link List} of {@link SessionToken2} for {@link MediaSessionService2} regardless of their
      * activeness. This list represents media apps that support background playback.
      *
      * @return list of Tokens
@@ -384,7 +383,7 @@
      */
     // TODO(jaewan): Unhide
     // TODO(jaewna): Add listener for change in lists.
-    public List<SessionToken> getSessionServiceTokens() {
+    public List<SessionToken2> getSessionServiceTokens() {
         try {
             List<Bundle> bundles = mService.getSessionTokens(
                     /* activeSessionOnly */ false, /* sessionServiceOnly */ true);
@@ -396,7 +395,7 @@
     }
 
     /**
-     * Get all {@link SessionToken}s. This is the combined list of {@link #getActiveSessionTokens()}
+     * Get all {@link SessionToken2}s. This is the combined list of {@link #getActiveSessionTokens()}
      * and {@link #getSessionServiceTokens}.
      *
      * @return list of Tokens
@@ -407,7 +406,7 @@
     // TODO(jaewan): Unhide
     // TODO(jaewan): Protect this with permission.
     // TODO(jaewna): Add listener for change in lists.
-    public List<SessionToken> getAllSessionTokens() {
+    public List<SessionToken2> getAllSessionTokens() {
         try {
             List<Bundle> bundles = mService.getSessionTokens(
                     /* activeSessionOnly */ false, /* sessionServiceOnly */ false);
@@ -418,11 +417,11 @@
         }
     }
 
-    private static List<SessionToken> toTokenList(List<Bundle> bundles) {
-        List<SessionToken> tokens = new ArrayList<>();
+    private static List<SessionToken2> toTokenList(List<Bundle> bundles) {
+        List<SessionToken2> tokens = new ArrayList<>();
         if (bundles != null) {
             for (int i = 0; i < bundles.size(); i++) {
-                SessionToken token = SessionToken.fromBundle(bundles.get(i));
+                SessionToken2 token = SessionToken2.fromBundle(bundles.get(i));
                 if (token != null) {
                     tokens.add(token);
                 }
diff --git a/media/java/android/media/update/MediaBrowser2Provider.java b/media/java/android/media/update/MediaBrowser2Provider.java
index e48711d..67680c7 100644
--- a/media/java/android/media/update/MediaBrowser2Provider.java
+++ b/media/java/android/media/update/MediaBrowser2Provider.java
@@ -16,6 +16,7 @@
 
 package android.media.update;
 
+import android.annotation.SystemApi;
 import android.os.Bundle;
 
 /**
diff --git a/media/java/android/media/update/MediaControlView2Provider.java b/media/java/android/media/update/MediaControlView2Provider.java
index e0e4cef..6b38c92 100644
--- a/media/java/android/media/update/MediaControlView2Provider.java
+++ b/media/java/android/media/update/MediaControlView2Provider.java
@@ -40,12 +40,6 @@
     void show_impl(int timeout);
     boolean isShowing_impl();
     void hide_impl();
-    boolean isPlaying_impl();
-    int getCurrentPosition_impl();
-    int getBufferPercentage_impl();
-    boolean canPause_impl();
-    boolean canSeekBackward_impl();
-    boolean canSeekForward_impl();
     void showSubtitle_impl();
     void hideSubtitle_impl();
     void setPrevNextListeners_impl(View.OnClickListener next, View.OnClickListener prev);
diff --git a/media/java/android/media/update/MediaController2Provider.java b/media/java/android/media/update/MediaController2Provider.java
index 8f5a643..8dfb892 100644
--- a/media/java/android/media/update/MediaController2Provider.java
+++ b/media/java/android/media/update/MediaController2Provider.java
@@ -16,14 +16,15 @@
 
 package android.media.update;
 
+import android.annotation.SystemApi;
 import android.app.PendingIntent;
 import android.media.MediaController2.PlaybackInfo;
 import android.media.MediaItem2;
 import android.media.MediaSession2.Command;
-import android.media.MediaSession2.PlaylistParam;
+import android.media.MediaSession2.PlaylistParams;
 import android.media.PlaybackState2;
 import android.media.Rating2;
-import android.media.SessionToken;
+import android.media.SessionToken2;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.ResultReceiver;
@@ -35,7 +36,7 @@
  */
 public interface MediaController2Provider extends TransportControlProvider {
     void close_impl();
-    SessionToken getSessionToken_impl();
+    SessionToken2 getSessionToken_impl();
     boolean isConnected_impl();
 
     PendingIntent getSessionActivity_impl();
@@ -59,6 +60,6 @@
     void removePlaylistItem_impl(MediaItem2 index);
     void addPlaylistItem_impl(int index, MediaItem2 item);
 
-    PlaylistParam getPlaylistParam_impl();
+    PlaylistParams getPlaylistParam_impl();
     PlaybackState2 getPlaybackState_impl();
 }
diff --git a/media/java/android/media/update/MediaLibraryService2Provider.java b/media/java/android/media/update/MediaLibraryService2Provider.java
index dac5784..a568839 100644
--- a/media/java/android/media/update/MediaLibraryService2Provider.java
+++ b/media/java/android/media/update/MediaLibraryService2Provider.java
@@ -16,8 +16,11 @@
 
 package android.media.update;
 
+import android.annotation.SystemApi;
 import android.media.MediaSession2.ControllerInfo;
-import android.os.Bundle; /**
+import android.os.Bundle;
+
+/**
  * @hide
  */
 public interface MediaLibraryService2Provider extends MediaSessionService2Provider {
diff --git a/media/java/android/media/update/MediaSession2Provider.java b/media/java/android/media/update/MediaSession2Provider.java
index 511686d..d32b741 100644
--- a/media/java/android/media/update/MediaSession2Provider.java
+++ b/media/java/android/media/update/MediaSession2Provider.java
@@ -16,20 +16,18 @@
 
 package android.media.update;
 
+import android.annotation.SystemApi;
 import android.media.AudioAttributes;
 import android.media.MediaItem2;
 import android.media.MediaPlayerBase;
-import android.media.MediaSession2;
 import android.media.MediaSession2.Command;
 import android.media.MediaSession2.CommandButton;
 import android.media.MediaSession2.CommandGroup;
 import android.media.MediaSession2.ControllerInfo;
-import android.media.MediaSession2.PlaylistParam;
-import android.media.SessionToken;
+import android.media.MediaSession2.PlaylistParams;
+import android.media.SessionToken2;
 import android.media.VolumeProvider;
-import android.media.session.PlaybackState;
 import android.os.Bundle;
-import android.os.Handler;
 import android.os.ResultReceiver;
 
 import java.util.List;
@@ -42,7 +40,7 @@
     void setPlayer_impl(MediaPlayerBase player);
     void setPlayer_impl(MediaPlayerBase player, VolumeProvider volumeProvider);
     MediaPlayerBase getPlayer_impl();
-    SessionToken getToken_impl();
+    SessionToken2 getToken_impl();
     List<ControllerInfo> getConnectedControllers_impl();
     void setCustomLayout_impl(ControllerInfo controller, List<CommandButton> layout);
     void setAudioAttributes_impl(AudioAttributes attributes);
@@ -53,11 +51,8 @@
     void sendCustomCommand_impl(ControllerInfo controller, Command command, Bundle args,
             ResultReceiver receiver);
     void sendCustomCommand_impl(Command command, Bundle args);
-    void setPlaylist_impl(List<MediaItem2> playlist, MediaSession2.PlaylistParam param);
+    void setPlaylist_impl(List<MediaItem2> playlist, PlaylistParams param);
 
-    /**
-     * @hide
-     */
     interface ControllerInfoProvider {
         String getPackageName_impl();
         int getUid_impl();
diff --git a/media/java/android/media/update/MediaSessionService2Provider.java b/media/java/android/media/update/MediaSessionService2Provider.java
index 1174915..9455da7 100644
--- a/media/java/android/media/update/MediaSessionService2Provider.java
+++ b/media/java/android/media/update/MediaSessionService2Provider.java
@@ -16,11 +16,11 @@
 
 package android.media.update;
 
+import android.annotation.SystemApi;
 import android.content.Intent;
 import android.media.MediaSession2;
 import android.media.MediaSessionService2.MediaNotification;
-import android.media.session.PlaybackState;
-import android.os.Handler;
+import android.media.PlaybackState2;
 import android.os.IBinder;
 
 /**
@@ -28,7 +28,7 @@
  */
 public interface MediaSessionService2Provider {
     MediaSession2 getSession_impl();
-    MediaNotification onUpdateNotification_impl(PlaybackState state);
+    MediaNotification onUpdateNotification_impl(PlaybackState2 state);
 
     // Service
     void onCreate_impl();
diff --git a/media/java/android/media/update/StaticProvider.java b/media/java/android/media/update/StaticProvider.java
index 64968d6..3cd1a99 100644
--- a/media/java/android/media/update/StaticProvider.java
+++ b/media/java/android/media/update/StaticProvider.java
@@ -17,9 +17,9 @@
 package android.media.update;
 
 import android.annotation.Nullable;
+import android.annotation.SystemApi;
 import android.app.PendingIntent;
 import android.content.Context;
-import android.media.IMediaSession2Callback;
 import android.media.MediaBrowser2;
 import android.media.MediaBrowser2.BrowserCallback;
 import android.media.MediaController2;
@@ -31,10 +31,11 @@
 import android.media.MediaSession2;
 import android.media.MediaSession2.SessionCallback;
 import android.media.MediaSessionService2;
-import android.media.SessionToken;
+import android.media.SessionToken2;
 import android.media.VolumeProvider;
 import android.media.update.MediaLibraryService2Provider.MediaLibrarySessionProvider;
 import android.media.update.MediaSession2Provider.ControllerInfoProvider;
+import android.os.IInterface;
 import android.util.AttributeSet;
 import android.widget.MediaControlView2;
 import android.widget.VideoView2;
@@ -46,10 +47,8 @@
  *
  * This interface provides access to constructors and static methods that are otherwise not directly
  * accessible via an implementation object.
- *
  * @hide
  */
-// TODO @SystemApi
 public interface StaticProvider {
     MediaControlView2Provider createMediaControlView2(
             MediaControlView2 instance, ViewProvider superProvider);
@@ -57,25 +56,20 @@
             VideoView2 instance, ViewProvider superProvider,
             @Nullable AttributeSet attrs, int defStyleAttr, int defStyleRes);
 
-    MediaSession2Provider createMediaSession2(MediaSession2 mediaSession2, Context context,
-            MediaPlayerBase player, String id, SessionCallback callback,
-            VolumeProvider volumeProvider, int ratingType,
-            PendingIntent sessionActivity);
-    ControllerInfoProvider createMediaSession2ControllerInfoProvider(
-            MediaSession2.ControllerInfo instance, Context context, int uid, int pid,
-            String packageName, IMediaSession2Callback callback);
-    MediaController2Provider createMediaController2(
-            MediaController2 instance, Context context, SessionToken token,
-            ControllerCallback callback, Executor executor);
-    MediaBrowser2Provider createMediaBrowser2(
-            MediaBrowser2 instance, Context context, SessionToken token,
-            BrowserCallback callback, Executor executor);
-    MediaSessionService2Provider createMediaSessionService2(
-            MediaSessionService2 instance);
-    MediaSessionService2Provider createMediaLibraryService2(
-            MediaLibraryService2 instance);
-    MediaLibrarySessionProvider createMediaLibraryService2MediaLibrarySession(
-            MediaLibrarySession instance, Context context, MediaPlayerBase player, String id,
-            MediaLibrarySessionCallback callback, VolumeProvider volumeProvider, int ratingType,
-            PendingIntent sessionActivity);
+    MediaSession2Provider createMediaSession2(Context context, MediaSession2 instance,
+            MediaPlayerBase player, String id, VolumeProvider volumeProvider, int ratingType,
+            PendingIntent sessionActivity, Executor executor, SessionCallback callback);
+    ControllerInfoProvider createMediaSession2ControllerInfoProvider(Context context,
+            MediaSession2.ControllerInfo instance, int uid, int pid,
+            String packageName, IInterface callback);
+    MediaController2Provider createMediaController2(Context context, MediaController2 instance,
+            SessionToken2 token, Executor executor, ControllerCallback callback);
+    MediaBrowser2Provider createMediaBrowser2(Context context, MediaBrowser2 instance,
+            SessionToken2 token, Executor executor, BrowserCallback callback);
+    MediaSessionService2Provider createMediaSessionService2(MediaSessionService2 instance);
+    MediaSessionService2Provider createMediaLibraryService2(MediaLibraryService2 instance);
+    MediaLibrarySessionProvider createMediaLibraryService2MediaLibrarySession(Context context,
+            MediaLibrarySession instance, MediaPlayerBase player, String id,
+            VolumeProvider volumeProvider, int ratingType, PendingIntent sessionActivity,
+            Executor executor, MediaLibrarySessionCallback callback);
 }
diff --git a/media/java/android/media/update/TransportControlProvider.java b/media/java/android/media/update/TransportControlProvider.java
index 5217a9d..0c87063e 100644
--- a/media/java/android/media/update/TransportControlProvider.java
+++ b/media/java/android/media/update/TransportControlProvider.java
@@ -16,14 +16,9 @@
 
 package android.media.update;
 
-import android.media.MediaPlayerBase;
-import android.media.session.PlaybackState;
-import android.os.Handler;
-
 /**
  * @hide
  */
-// TODO(jaewan): SystemApi
 public interface TransportControlProvider {
     void play_impl();
     void pause_impl();
diff --git a/media/java/android/media/update/VideoView2Provider.java b/media/java/android/media/update/VideoView2Provider.java
index 416ea98..5c05ce4 100644
--- a/media/java/android/media/update/VideoView2Provider.java
+++ b/media/java/android/media/update/VideoView2Provider.java
@@ -18,6 +18,7 @@
 
 import android.media.AudioAttributes;
 import android.media.MediaPlayerBase;
+import android.media.session.MediaController;
 import android.net.Uri;
 import android.widget.MediaControlView2;
 import android.widget.VideoView2;
@@ -41,20 +42,14 @@
 // TODO @SystemApi
 public interface VideoView2Provider extends ViewProvider {
     void setMediaControlView2_impl(MediaControlView2 mediaControlView);
+    MediaController getMediaController_impl();
     MediaControlView2 getMediaControlView2_impl();
-    void start_impl();
-    void pause_impl();
-    int getDuration_impl();
-    int getCurrentPosition_impl();
-    void seekTo_impl(int msec);
-    boolean isPlaying_impl();
-    int getBufferPercentage_impl();
     int getAudioSessionId_impl();
     void showSubtitle_impl();
     void hideSubtitle_impl();
     void setFullScreen_impl(boolean fullScreen);
+    // TODO: remove setSpeed_impl once MediaController2 is ready.
     void setSpeed_impl(float speed);
-    float getSpeed_impl();
     void setAudioFocusRequest_impl(int focusGain);
     void setAudioAttributes_impl(AudioAttributes attributes);
     void setRouteAttributes_impl(List<String> routeCategories, MediaPlayerBase player);
@@ -63,7 +58,6 @@
     void setVideoURI_impl(Uri uri, Map<String, String> headers);
     void setViewType_impl(int viewType);
     int getViewType_impl();
-    void stopPlayback_impl();
     void setOnPreparedListener_impl(VideoView2.OnPreparedListener l);
     void setOnCompletionListener_impl(VideoView2.OnCompletionListener l);
     void setOnErrorListener_impl(VideoView2.OnErrorListener l);
diff --git a/media/jni/Android.bp b/media/jni/Android.bp
index 597336b..74f3aca 100644
--- a/media/jni/Android.bp
+++ b/media/jni/Android.bp
@@ -12,7 +12,6 @@
         "android_media_MediaDrm.cpp",
         "android_media_MediaExtractor.cpp",
         "android_media_MediaHTTPConnection.cpp",
-        "android_media_MediaMetricsJNI.cpp",
         "android_media_MediaMetadataRetriever.cpp",
         "android_media_MediaMuxer.cpp",
         "android_media_MediaPlayer.cpp",
@@ -84,6 +83,92 @@
     ],
 }
 
+cc_library_shared {
+    name: "libmedia2_jni",
+
+    srcs: [
+        "android_media_Media2HTTPConnection.cpp",
+        "android_media_Media2HTTPService.cpp",
+        "android_media_MediaCrypto.cpp",
+        "android_media_Media2DataSource.cpp",
+        "android_media_MediaDrm.cpp",
+        "android_media_MediaPlayer2.cpp",
+        "android_media_SyncParams.cpp",
+    ],
+
+    shared_libs: [
+        "android.hardware.cas@1.0",  // for CasManager. VNDK???
+        "android.hardware.cas.native@1.0",  // CasManager. VNDK???
+        "libandroid",  // NDK
+        "libandroid_runtime",  // ???
+        "libaudioclient",  // for use of AudioTrack, AudioSystem. to be removed
+        "liblog",  // NDK
+        "libdrmframework",  // for FileSource, MediaHTTP
+        "libgui",  // for VideoFrameScheduler
+        "libhidlbase",  // VNDK???
+        "libmediandk",  // NDK
+        "libpowermanager",  // for JWakeLock. to be removed
+    ],
+
+    header_libs: ["libhardware_headers"],
+
+    static_libs: [
+        "libbacktrace",
+        "libbase",
+        "libbinder",
+        "libc_malloc_debug_backtrace",
+        "libcrypto",
+        "libcutils",
+        "libdexfile",
+        "liblzma",
+        "libmedia",
+        "libmedia_helper",
+        "libmedia_player2",
+        "libmedia_player2_util",
+        "libmediadrm",
+        "libmediaextractor",
+        "libmediametrics",
+        "libmediautils",
+        "libnativehelper",
+        "libnetd_client",
+        "libstagefright_esds",
+        "libstagefright_foundation",
+        "libstagefright_httplive",
+        "libstagefright_id3",
+        "libstagefright_mpeg2support",
+        "libstagefright_nuplayer2",
+        "libstagefright_player2",
+        "libstagefright_rtsp",
+        "libstagefright_timedtext",
+        "libunwindstack",
+        "libutils",
+        "libutilscallstack",
+        "libvndksupport",
+        "libz",
+        "libziparchive",
+    ],
+
+    group_static_libs: true,
+
+    include_dirs: [
+        "frameworks/base/core/jni",
+        "frameworks/native/include/media/openmax",
+        "system/media/camera/include",
+    ],
+
+    export_include_dirs: ["."],
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+        "-Wno-error=deprecated-declarations",
+        "-Wunused",
+        "-Wunreachable-code",
+    ],
+
+    ldflags: ["-Wl,--exclude-libs=ALL"],
+}
+
 subdirs = [
     "audioeffect",
     "soundpool",
diff --git a/media/jni/android_media_Media2DataSource.cpp b/media/jni/android_media_Media2DataSource.cpp
new file mode 100644
index 0000000..bc3f6bd
--- /dev/null
+++ b/media/jni/android_media_Media2DataSource.cpp
@@ -0,0 +1,159 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "JMedia2DataSource-JNI"
+#include <utils/Log.h>
+
+#include "android_media_Media2DataSource.h"
+
+#include "android_runtime/AndroidRuntime.h"
+#include "android_runtime/Log.h"
+#include "jni.h"
+#include <nativehelper/JNIHelp.h>
+
+#include <drm/drm_framework_common.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <nativehelper/ScopedLocalRef.h>
+
+namespace android {
+
+static const size_t kBufferSize = 64 * 1024;
+
+JMedia2DataSource::JMedia2DataSource(JNIEnv* env, jobject source)
+    : mJavaObjStatus(OK),
+      mSizeIsCached(false),
+      mCachedSize(0) {
+    mMedia2DataSourceObj = env->NewGlobalRef(source);
+    CHECK(mMedia2DataSourceObj != NULL);
+
+    ScopedLocalRef<jclass> media2DataSourceClass(env, env->GetObjectClass(mMedia2DataSourceObj));
+    CHECK(media2DataSourceClass.get() != NULL);
+
+    mReadAtMethod = env->GetMethodID(media2DataSourceClass.get(), "readAt", "(J[BII)I");
+    CHECK(mReadAtMethod != NULL);
+    mGetSizeMethod = env->GetMethodID(media2DataSourceClass.get(), "getSize", "()J");
+    CHECK(mGetSizeMethod != NULL);
+    mCloseMethod = env->GetMethodID(media2DataSourceClass.get(), "close", "()V");
+    CHECK(mCloseMethod != NULL);
+
+    ScopedLocalRef<jbyteArray> tmp(env, env->NewByteArray(kBufferSize));
+    mByteArrayObj = (jbyteArray)env->NewGlobalRef(tmp.get());
+    CHECK(mByteArrayObj != NULL);
+}
+
+JMedia2DataSource::~JMedia2DataSource() {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    env->DeleteGlobalRef(mMedia2DataSourceObj);
+    env->DeleteGlobalRef(mByteArrayObj);
+}
+
+status_t JMedia2DataSource::initCheck() const {
+    return OK;
+}
+
+ssize_t JMedia2DataSource::readAt(off64_t offset, void *data, size_t size) {
+    Mutex::Autolock lock(mLock);
+
+    if (mJavaObjStatus != OK) {
+        return -1;
+    }
+    if (size > kBufferSize) {
+        size = kBufferSize;
+    }
+
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    jint numread = env->CallIntMethod(mMedia2DataSourceObj, mReadAtMethod,
+            (jlong)offset, mByteArrayObj, (jint)0, (jint)size);
+    if (env->ExceptionCheck()) {
+        ALOGW("An exception occurred in readAt()");
+        LOGW_EX(env);
+        env->ExceptionClear();
+        mJavaObjStatus = UNKNOWN_ERROR;
+        return -1;
+    }
+    if (numread < 0) {
+        if (numread != -1) {
+            ALOGW("An error occurred in readAt()");
+            mJavaObjStatus = UNKNOWN_ERROR;
+            return -1;
+        } else {
+            // numread == -1 indicates EOF
+            return 0;
+        }
+    }
+    if ((size_t)numread > size) {
+        ALOGE("readAt read too many bytes.");
+        mJavaObjStatus = UNKNOWN_ERROR;
+        return -1;
+    }
+
+    ALOGV("readAt %lld / %zu => %d.", (long long)offset, size, numread);
+    env->GetByteArrayRegion(mByteArrayObj, 0, numread, (jbyte*)data);
+    return numread;
+}
+
+status_t JMedia2DataSource::getSize(off64_t* size) {
+    Mutex::Autolock lock(mLock);
+
+    if (mJavaObjStatus != OK) {
+        return UNKNOWN_ERROR;
+    }
+    if (mSizeIsCached) {
+        *size = mCachedSize;
+        return OK;
+    }
+
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    *size = env->CallLongMethod(mMedia2DataSourceObj, mGetSizeMethod);
+    if (env->ExceptionCheck()) {
+        ALOGW("An exception occurred in getSize()");
+        LOGW_EX(env);
+        env->ExceptionClear();
+        // After returning an error, size shouldn't be used by callers.
+        *size = UNKNOWN_ERROR;
+        mJavaObjStatus = UNKNOWN_ERROR;
+        return UNKNOWN_ERROR;
+    }
+
+    // The minimum size should be -1, which indicates unknown size.
+    if (*size < 0) {
+        *size = -1;
+    }
+
+    mCachedSize = *size;
+    mSizeIsCached = true;
+    return OK;
+}
+
+void JMedia2DataSource::close() {
+    Mutex::Autolock lock(mLock);
+
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    env->CallVoidMethod(mMedia2DataSourceObj, mCloseMethod);
+    // The closed state is effectively the same as an error state.
+    mJavaObjStatus = UNKNOWN_ERROR;
+}
+
+String8 JMedia2DataSource::toString() {
+    return String8::format("JMedia2DataSource(pid %d, uid %d)", getpid(), getuid());
+}
+
+String8 JMedia2DataSource::getMIMEType() const {
+    return String8("application/octet-stream");
+}
+
+}  // namespace android
diff --git a/media/jni/android_media_Media2DataSource.h b/media/jni/android_media_Media2DataSource.h
new file mode 100644
index 0000000..dc085f3
--- /dev/null
+++ b/media/jni/android_media_Media2DataSource.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROID_MEDIA_MEDIA2DATASOURCE_H_
+#define _ANDROID_MEDIA_MEDIA2DATASOURCE_H_
+
+#include "jni.h"
+
+#include <media/DataSource.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <utils/Errors.h>
+#include <utils/Mutex.h>
+
+namespace android {
+
+// The native counterpart to a Java android.media.Media2DataSource. It inherits from
+// DataSource.
+//
+// If the java DataSource returns an error or throws an exception it
+// will be considered to be in a broken state, and the only further call this
+// will make is to close().
+class JMedia2DataSource : public DataSource {
+public:
+    JMedia2DataSource(JNIEnv *env, jobject source);
+    virtual ~JMedia2DataSource();
+
+    virtual status_t initCheck() const override;
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) override;
+    virtual status_t getSize(off64_t *size) override;
+
+    virtual String8 toString() override;
+    virtual String8 getMIMEType() const override;
+    virtual void close() override;
+private:
+    // Protect all member variables with mLock because this object will be
+    // accessed on different threads.
+    Mutex mLock;
+
+    // The status of the java DataSource. Set to OK unless an error occurred or
+    // close() was called.
+    status_t mJavaObjStatus;
+    // Only call the java getSize() once so the app can't change the size on us.
+    bool mSizeIsCached;
+    off64_t mCachedSize;
+
+    jobject mMedia2DataSourceObj;
+    jmethodID mReadAtMethod;
+    jmethodID mGetSizeMethod;
+    jmethodID mCloseMethod;
+    jbyteArray mByteArrayObj;
+
+    DISALLOW_EVIL_CONSTRUCTORS(JMedia2DataSource);
+};
+
+}  // namespace android
+
+#endif  // _ANDROID_MEDIA_MEDIA2DATASOURCE_H_
diff --git a/media/jni/android_media_Media2HTTPConnection.cpp b/media/jni/android_media_Media2HTTPConnection.cpp
new file mode 100644
index 0000000..60176e3
--- /dev/null
+++ b/media/jni/android_media_Media2HTTPConnection.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Media2HTTPConnection-JNI"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <nativehelper/ScopedLocalRef.h>
+
+#include "android_media_Media2HTTPConnection.h"
+#include "android_util_Binder.h"
+
+#include "android_runtime/AndroidRuntime.h"
+#include "android_runtime/Log.h"
+#include "jni.h"
+#include <nativehelper/JNIHelp.h>
+
+namespace android {
+
+static const size_t kBufferSize = 32768;
+
+JMedia2HTTPConnection::JMedia2HTTPConnection(JNIEnv *env, jobject thiz) {
+    mMedia2HTTPConnectionObj = env->NewGlobalRef(thiz);
+    CHECK(mMedia2HTTPConnectionObj != NULL);
+
+    ScopedLocalRef<jclass> media2HTTPConnectionClass(
+            env, env->GetObjectClass(mMedia2HTTPConnectionObj));
+    CHECK(media2HTTPConnectionClass.get() != NULL);
+
+    mConnectMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "connect",
+            "(Ljava/lang/String;Ljava/lang/String;)Z");
+    CHECK(mConnectMethod != NULL);
+
+    mDisconnectMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "disconnect",
+            "()V");
+    CHECK(mDisconnectMethod != NULL);
+
+    mReadAtMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "readAt",
+            "(J[BI)I");
+    CHECK(mReadAtMethod != NULL);
+
+    mGetSizeMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "getSize",
+            "()J");
+    CHECK(mGetSizeMethod != NULL);
+
+    mGetMIMETypeMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "getMIMEType",
+            "()Ljava/lang/String;");
+    CHECK(mGetMIMETypeMethod != NULL);
+
+    mGetUriMethod = env->GetMethodID(
+            media2HTTPConnectionClass.get(),
+            "getUri",
+            "()Ljava/lang/String;");
+    CHECK(mGetUriMethod != NULL);
+
+    ScopedLocalRef<jbyteArray> tmp(
+        env, env->NewByteArray(kBufferSize));
+    mByteArrayObj = (jbyteArray)env->NewGlobalRef(tmp.get());
+    CHECK(mByteArrayObj != NULL);
+}
+
+JMedia2HTTPConnection::~JMedia2HTTPConnection() {
+    JNIEnv *env = AndroidRuntime::getJNIEnv();
+    env->DeleteGlobalRef(mMedia2HTTPConnectionObj);
+    env->DeleteGlobalRef(mByteArrayObj);
+}
+
+bool JMedia2HTTPConnection::connect(
+        const char *uri, const KeyedVector<String8, String8> *headers) {
+    String8 tmp("");
+    if (headers != NULL) {
+        for (size_t i = 0; i < headers->size(); ++i) {
+            tmp.append(headers->keyAt(i));
+            tmp.append(String8(": "));
+            tmp.append(headers->valueAt(i));
+            tmp.append(String8("\r\n"));
+        }
+    }
+
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    jstring juri = env->NewStringUTF(uri);
+    jstring jheaders = env->NewStringUTF(tmp.string());
+
+    jboolean ret =
+        env->CallBooleanMethod(mMedia2HTTPConnectionObj, mConnectMethod, juri, jheaders);
+
+    env->DeleteLocalRef(juri);
+    env->DeleteLocalRef(jheaders);
+
+    return (bool)ret;
+}
+
+void JMedia2HTTPConnection::disconnect() {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    env->CallVoidMethod(mMedia2HTTPConnectionObj, mDisconnectMethod);
+}
+
+ssize_t JMedia2HTTPConnection::readAt(off64_t offset, void *data, size_t size) {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+
+    if (size > kBufferSize) {
+        size = kBufferSize;
+    }
+
+    jint n = env->CallIntMethod(
+            mMedia2HTTPConnectionObj, mReadAtMethod, (jlong)offset, mByteArrayObj, (jint)size);
+
+    if (n > 0) {
+        env->GetByteArrayRegion(
+                mByteArrayObj,
+                0,
+                n,
+                (jbyte *)data);
+    }
+
+    return n;
+}
+
+off64_t JMedia2HTTPConnection::getSize() {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    return (off64_t)(env->CallLongMethod(mMedia2HTTPConnectionObj, mGetSizeMethod));
+}
+
+status_t JMedia2HTTPConnection::getMIMEType(String8 *mimeType) {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    jstring jmime = (jstring)env->CallObjectMethod(mMedia2HTTPConnectionObj, mGetMIMETypeMethod);
+    jboolean flag = env->ExceptionCheck();
+    if (flag) {
+        env->ExceptionClear();
+        return UNKNOWN_ERROR;
+    }
+
+    const char *str = env->GetStringUTFChars(jmime, 0);
+    if (str != NULL) {
+        *mimeType = String8(str);
+    } else {
+        *mimeType = "application/octet-stream";
+    }
+    env->ReleaseStringUTFChars(jmime, str);
+    return OK;
+}
+
+status_t JMedia2HTTPConnection::getUri(String8 *uri) {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    jstring juri = (jstring)env->CallObjectMethod(mMedia2HTTPConnectionObj, mGetUriMethod);
+    jboolean flag = env->ExceptionCheck();
+    if (flag) {
+        env->ExceptionClear();
+        return UNKNOWN_ERROR;
+    }
+
+    const char *str = env->GetStringUTFChars(juri, 0);
+    *uri = String8(str);
+    env->ReleaseStringUTFChars(juri, str);
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/jni/android_media_Media2HTTPConnection.h b/media/jni/android_media_Media2HTTPConnection.h
new file mode 100644
index 0000000..14bc677
--- /dev/null
+++ b/media/jni/android_media_Media2HTTPConnection.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROID_MEDIA_MEDIA2HTTPCONNECTION_H_
+#define _ANDROID_MEDIA_MEDIA2HTTPCONNECTION_H_
+
+#include "jni.h"
+
+#include <media/MediaHTTPConnection.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+
+struct JMedia2HTTPConnection : public MediaHTTPConnection {
+    JMedia2HTTPConnection(JNIEnv *env, jobject thiz);
+
+    virtual bool connect(
+            const char *uri, const KeyedVector<String8, String8> *headers) override;
+
+    virtual void disconnect() override;
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) override;
+    virtual off64_t getSize() override;
+    virtual status_t getMIMEType(String8 *mimeType) override;
+    virtual status_t getUri(String8 *uri) override;
+
+protected:
+    virtual ~JMedia2HTTPConnection();
+
+private:
+    jobject mMedia2HTTPConnectionObj;
+    jmethodID mConnectMethod;
+    jmethodID mDisconnectMethod;
+    jmethodID mReadAtMethod;
+    jmethodID mGetSizeMethod;
+    jmethodID mGetMIMETypeMethod;
+    jmethodID mGetUriMethod;
+
+    jbyteArray mByteArrayObj;
+
+    DISALLOW_EVIL_CONSTRUCTORS(JMedia2HTTPConnection);
+};
+
+}  // namespace android
+
+#endif  // _ANDROID_MEDIA_MEDIA2HTTPCONNECTION_H_
diff --git a/media/jni/android_media_Media2HTTPService.cpp b/media/jni/android_media_Media2HTTPService.cpp
new file mode 100644
index 0000000..382f099
--- /dev/null
+++ b/media/jni/android_media_Media2HTTPService.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Media2HTTPService-JNI"
+#include <utils/Log.h>
+
+#include "android_media_Media2HTTPConnection.h"
+#include "android_media_Media2HTTPService.h"
+
+#include "android_runtime/AndroidRuntime.h"
+#include "android_runtime/Log.h"
+#include "jni.h"
+#include <nativehelper/JNIHelp.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <nativehelper/ScopedLocalRef.h>
+
+namespace android {
+
+JMedia2HTTPService::JMedia2HTTPService(JNIEnv *env, jobject thiz) {
+    mMedia2HTTPServiceObj = env->NewGlobalRef(thiz);
+    CHECK(mMedia2HTTPServiceObj != NULL);
+
+    ScopedLocalRef<jclass> media2HTTPServiceClass(env, env->GetObjectClass(mMedia2HTTPServiceObj));
+    CHECK(media2HTTPServiceClass.get() != NULL);
+
+    mMakeHTTPConnectionMethod = env->GetMethodID(
+            media2HTTPServiceClass.get(),
+            "makeHTTPConnection",
+            "()Landroid/media/Media2HTTPConnection;");
+    CHECK(mMakeHTTPConnectionMethod != NULL);
+}
+
+JMedia2HTTPService::~JMedia2HTTPService() {
+    JNIEnv *env = AndroidRuntime::getJNIEnv();
+    env->DeleteGlobalRef(mMedia2HTTPServiceObj);
+}
+
+sp<MediaHTTPConnection> JMedia2HTTPService::makeHTTPConnection() {
+    JNIEnv* env = AndroidRuntime::getJNIEnv();
+    jobject media2HTTPConnectionObj =
+        env->CallObjectMethod(mMedia2HTTPServiceObj, mMakeHTTPConnectionMethod);
+
+    return new JMedia2HTTPConnection(env, media2HTTPConnectionObj);
+}
+
+}  // namespace android
diff --git a/media/jni/android_media_Media2HTTPService.h b/media/jni/android_media_Media2HTTPService.h
new file mode 100644
index 0000000..30d03f5
--- /dev/null
+++ b/media/jni/android_media_Media2HTTPService.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _ANDROID_MEDIA_MEDIA2HTTPSERVICE_H_
+#define _ANDROID_MEDIA_MEDIA2HTTPSERVICE_H_
+
+#include "jni.h"
+
+#include <media/MediaHTTPService.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+
+struct JMedia2HTTPService : public MediaHTTPService {
+    JMedia2HTTPService(JNIEnv *env, jobject thiz);
+
+    virtual sp<MediaHTTPConnection> makeHTTPConnection() override;
+
+protected:
+    virtual ~JMedia2HTTPService();
+
+private:
+    jobject mMedia2HTTPServiceObj;
+
+    jmethodID mMakeHTTPConnectionMethod;
+
+    DISALLOW_EVIL_CONSTRUCTORS(JMedia2HTTPService);
+};
+
+}  // namespace android
+
+#endif  // _ANDROID_MEDIA_MEDIA2HTTPSERVICE_H_
diff --git a/media/jni/android_media_MediaExtractor.cpp b/media/jni/android_media_MediaExtractor.cpp
index 5c90d00..a855526 100644
--- a/media/jni/android_media_MediaExtractor.cpp
+++ b/media/jni/android_media_MediaExtractor.cpp
@@ -244,6 +244,10 @@
     return mImpl->getSampleTime(sampleTimeUs);
 }
 
+status_t JMediaExtractor::getSampleSize(size_t *sampleSize) {
+    return mImpl->getSampleSize(sampleSize);
+}
+
 status_t JMediaExtractor::getSampleFlags(uint32_t *sampleFlags) {
     *sampleFlags = 0;
 
@@ -505,6 +509,28 @@
     return (jlong) sampleTimeUs;
 }
 
+static jlong android_media_MediaExtractor_getSampleSize(
+        JNIEnv *env, jobject thiz) {
+    sp<JMediaExtractor> extractor = getMediaExtractor(env, thiz);
+
+    if (extractor == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return -1ll;
+    }
+
+    size_t sampleSize;
+    status_t err = extractor->getSampleSize(&sampleSize);
+
+    if (err == ERROR_END_OF_STREAM) {
+        return -1ll;
+    } else if (err != OK) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return -1ll;
+    }
+
+    return (jlong) sampleSize;
+}
+
 static jint android_media_MediaExtractor_getSampleFlags(
         JNIEnv *env, jobject thiz) {
     sp<JMediaExtractor> extractor = getMediaExtractor(env, thiz);
@@ -884,6 +910,9 @@
     { "getSampleTime", "()J",
         (void *)android_media_MediaExtractor_getSampleTime },
 
+    { "getSampleSize", "()J",
+        (void *)android_media_MediaExtractor_getSampleSize },
+
     { "getSampleFlags", "()I",
         (void *)android_media_MediaExtractor_getSampleFlags },
 
diff --git a/media/jni/android_media_MediaExtractor.h b/media/jni/android_media_MediaExtractor.h
index a4638ac..aaa8421 100644
--- a/media/jni/android_media_MediaExtractor.h
+++ b/media/jni/android_media_MediaExtractor.h
@@ -60,6 +60,7 @@
     status_t readSampleData(jobject byteBuf, size_t offset, size_t *sampleSize);
     status_t getSampleTrackIndex(size_t *trackIndex);
     status_t getSampleTime(int64_t *sampleTimeUs);
+    status_t getSampleSize(size_t *sampleSize);
     status_t getSampleFlags(uint32_t *sampleFlags);
     status_t getSampleMeta(sp<MetaData> *sampleMeta);
     status_t getMetrics(Parcel *reply) const;
diff --git a/media/jni/android_media_MediaPlayer2.cpp b/media/jni/android_media_MediaPlayer2.cpp
new file mode 100644
index 0000000..3bf0b37
--- /dev/null
+++ b/media/jni/android_media_MediaPlayer2.cpp
@@ -0,0 +1,1514 @@
+/*
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaPlayer2-JNI"
+#include "utils/Log.h"
+
+#include <media/mediaplayer2.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/MediaHTTPService.h>
+#include <media/MediaPlayer2Interface.h>
+#include <media/MediaAnalyticsItem.h>
+#include <media/NdkWrapper.h>
+#include <media/stagefright/foundation/ByteUtils.h>  // for FOURCC definition
+#include <stdio.h>
+#include <assert.h>
+#include <limits.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <utils/threads.h>
+#include "jni.h"
+#include <nativehelper/JNIHelp.h>
+#include "android/native_window_jni.h"
+#include "android_runtime/Log.h"
+#include "utils/Errors.h"  // for status_t
+#include "utils/KeyedVector.h"
+#include "utils/String8.h"
+#include "android_media_BufferingParams.h"
+#include "android_media_Media2HTTPService.h"
+#include "android_media_Media2DataSource.h"
+#include "android_media_MediaMetricsJNI.h"
+#include "android_media_PlaybackParams.h"
+#include "android_media_SyncParams.h"
+#include "android_media_VolumeShaper.h"
+
+#include "android_os_Parcel.h"
+#include "android_util_Binder.h"
+#include <binder/Parcel.h>
+
+// Modular DRM begin
+#define FIND_CLASS(var, className) \
+var = env->FindClass(className); \
+LOG_FATAL_IF(! (var), "Unable to find class " className);
+
+#define GET_METHOD_ID(var, clazz, fieldName, fieldDescriptor) \
+var = env->GetMethodID(clazz, fieldName, fieldDescriptor); \
+LOG_FATAL_IF(! (var), "Unable to find method " fieldName);
+
+struct StateExceptionFields {
+    jmethodID init;
+    jclass classId;
+};
+
+static StateExceptionFields gStateExceptionFields;
+// Modular DRM end
+
+// ----------------------------------------------------------------------------
+
+using namespace android;
+
+using media::VolumeShaper;
+
+// ----------------------------------------------------------------------------
+
+struct fields_t {
+    jfieldID    context;
+    jfieldID    surface_texture;
+
+    jmethodID   post_event;
+
+    jmethodID   proxyConfigGetHost;
+    jmethodID   proxyConfigGetPort;
+    jmethodID   proxyConfigGetExclusionList;
+};
+static fields_t fields;
+
+static BufferingParams::fields_t gBufferingParamsFields;
+static PlaybackParams::fields_t gPlaybackParamsFields;
+static SyncParams::fields_t gSyncParamsFields;
+static VolumeShaperHelper::fields_t gVolumeShaperFields;
+
+static Mutex sLock;
+
+static bool ConvertKeyValueArraysToKeyedVector(
+        JNIEnv *env, jobjectArray keys, jobjectArray values,
+        KeyedVector<String8, String8>* keyedVector) {
+
+    int nKeyValuePairs = 0;
+    bool failed = false;
+    if (keys != NULL && values != NULL) {
+        nKeyValuePairs = env->GetArrayLength(keys);
+        failed = (nKeyValuePairs != env->GetArrayLength(values));
+    }
+
+    if (!failed) {
+        failed = ((keys != NULL && values == NULL) ||
+                  (keys == NULL && values != NULL));
+    }
+
+    if (failed) {
+        ALOGE("keys and values arrays have different length");
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return false;
+    }
+
+    for (int i = 0; i < nKeyValuePairs; ++i) {
+        // No need to check on the ArrayIndexOutOfBoundsException, since
+        // it won't happen here.
+        jstring key = (jstring) env->GetObjectArrayElement(keys, i);
+        jstring value = (jstring) env->GetObjectArrayElement(values, i);
+
+        const char* keyStr = env->GetStringUTFChars(key, NULL);
+        if (!keyStr) {  // OutOfMemoryError
+            return false;
+        }
+
+        const char* valueStr = env->GetStringUTFChars(value, NULL);
+        if (!valueStr) {  // OutOfMemoryError
+            env->ReleaseStringUTFChars(key, keyStr);
+            return false;
+        }
+
+        keyedVector->add(String8(keyStr), String8(valueStr));
+
+        env->ReleaseStringUTFChars(key, keyStr);
+        env->ReleaseStringUTFChars(value, valueStr);
+        env->DeleteLocalRef(key);
+        env->DeleteLocalRef(value);
+    }
+    return true;
+}
+
+// ----------------------------------------------------------------------------
+// ref-counted object for callbacks
+class JNIMediaPlayer2Listener: public MediaPlayer2Listener
+{
+public:
+    JNIMediaPlayer2Listener(JNIEnv* env, jobject thiz, jobject weak_thiz);
+    ~JNIMediaPlayer2Listener();
+    virtual void notify(int msg, int ext1, int ext2, const Parcel *obj = NULL);
+private:
+    JNIMediaPlayer2Listener();
+    jclass      mClass;     // Reference to MediaPlayer2 class
+    jobject     mObject;    // Weak ref to MediaPlayer2 Java object to call on
+};
+
+JNIMediaPlayer2Listener::JNIMediaPlayer2Listener(JNIEnv* env, jobject thiz, jobject weak_thiz)
+{
+
+    // Hold onto the MediaPlayer2 class for use in calling the static method
+    // that posts events to the application thread.
+    jclass clazz = env->GetObjectClass(thiz);
+    if (clazz == NULL) {
+        ALOGE("Can't find android/media/MediaPlayer2Impl");
+        jniThrowException(env, "java/lang/Exception", NULL);
+        return;
+    }
+    mClass = (jclass)env->NewGlobalRef(clazz);
+
+    // We use a weak reference so the MediaPlayer2 object can be garbage collected.
+    // The reference is only used as a proxy for callbacks.
+    mObject  = env->NewGlobalRef(weak_thiz);
+}
+
+JNIMediaPlayer2Listener::~JNIMediaPlayer2Listener()
+{
+    // remove global references
+    JNIEnv *env = AndroidRuntime::getJNIEnv();
+    env->DeleteGlobalRef(mObject);
+    env->DeleteGlobalRef(mClass);
+}
+
+void JNIMediaPlayer2Listener::notify(int msg, int ext1, int ext2, const Parcel *obj)
+{
+    JNIEnv *env = AndroidRuntime::getJNIEnv();
+    if (obj && obj->dataSize() > 0) {
+        jobject jParcel = createJavaParcelObject(env);
+        if (jParcel != NULL) {
+            Parcel* nativeParcel = parcelForJavaObject(env, jParcel);
+            nativeParcel->setData(obj->data(), obj->dataSize());
+            env->CallStaticVoidMethod(mClass, fields.post_event, mObject,
+                    msg, ext1, ext2, jParcel);
+            env->DeleteLocalRef(jParcel);
+        }
+    } else {
+        env->CallStaticVoidMethod(mClass, fields.post_event, mObject,
+                msg, ext1, ext2, NULL);
+    }
+    if (env->ExceptionCheck()) {
+        ALOGW("An exception occurred while notifying an event.");
+        LOGW_EX(env);
+        env->ExceptionClear();
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+static sp<MediaPlayer2> getMediaPlayer(JNIEnv* env, jobject thiz)
+{
+    Mutex::Autolock l(sLock);
+    MediaPlayer2* const p = (MediaPlayer2*)env->GetLongField(thiz, fields.context);
+    return sp<MediaPlayer2>(p);
+}
+
+static sp<MediaPlayer2> setMediaPlayer(JNIEnv* env, jobject thiz, const sp<MediaPlayer2>& player)
+{
+    Mutex::Autolock l(sLock);
+    sp<MediaPlayer2> old = (MediaPlayer2*)env->GetLongField(thiz, fields.context);
+    if (player.get()) {
+        player->incStrong((void*)setMediaPlayer);
+    }
+    if (old != 0) {
+        old->decStrong((void*)setMediaPlayer);
+    }
+    env->SetLongField(thiz, fields.context, (jlong)player.get());
+    return old;
+}
+
+// If exception is NULL and opStatus is not OK, this method sends an error
+// event to the client application; otherwise, if exception is not NULL and
+// opStatus is not OK, this method throws the given exception to the client
+// application.
+static void process_media_player_call(JNIEnv *env, jobject thiz, status_t opStatus, const char* exception, const char *message)
+{
+    if (exception == NULL) {  // Don't throw exception. Instead, send an event.
+        if (opStatus != (status_t) OK) {
+            sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+            if (mp != 0) mp->notify(MEDIA2_ERROR, opStatus, 0);
+        }
+    } else {  // Throw exception!
+        if ( opStatus == (status_t) INVALID_OPERATION ) {
+            jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        } else if ( opStatus == (status_t) BAD_VALUE ) {
+            jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        } else if ( opStatus == (status_t) PERMISSION_DENIED ) {
+            jniThrowException(env, "java/lang/SecurityException", NULL);
+        } else if ( opStatus != (status_t) OK ) {
+            if (strlen(message) > 230) {
+               // if the message is too long, don't bother displaying the status code
+               jniThrowException( env, exception, message);
+            } else {
+               char msg[256];
+                // append the status code to the message
+               sprintf(msg, "%s: status=0x%X", message, opStatus);
+               jniThrowException( env, exception, msg);
+            }
+        }
+    }
+}
+
+static void
+android_media_MediaPlayer2_setDataSourceAndHeaders(
+        JNIEnv *env, jobject thiz, jobject httpServiceObj, jstring path,
+        jobjectArray keys, jobjectArray values) {
+
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    if (path == NULL) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return;
+    }
+
+    const char *tmp = env->GetStringUTFChars(path, NULL);
+    if (tmp == NULL) {  // Out of memory
+        return;
+    }
+    ALOGV("setDataSource: path %s", tmp);
+
+    String8 pathStr(tmp);
+    env->ReleaseStringUTFChars(path, tmp);
+    tmp = NULL;
+
+    // We build a KeyedVector out of the key and val arrays
+    KeyedVector<String8, String8> headersVector;
+    if (!ConvertKeyValueArraysToKeyedVector(
+            env, keys, values, &headersVector)) {
+        return;
+    }
+
+    sp<MediaHTTPService> httpService;
+    if (httpServiceObj != NULL) {
+        httpService = new JMedia2HTTPService(env, httpServiceObj);
+    }
+
+    status_t opStatus =
+        mp->setDataSource(
+                httpService,
+                pathStr,
+                headersVector.size() > 0? &headersVector : NULL);
+
+    process_media_player_call(
+            env, thiz, opStatus, "java/io/IOException",
+            "setDataSource failed." );
+}
+
+static void
+android_media_MediaPlayer2_setDataSourceFD(JNIEnv *env, jobject thiz, jobject fileDescriptor, jlong offset, jlong length)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    if (fileDescriptor == NULL) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return;
+    }
+    int fd = jniGetFDFromFileDescriptor(env, fileDescriptor);
+    ALOGV("setDataSourceFD: fd %d", fd);
+    process_media_player_call( env, thiz, mp->setDataSource(fd, offset, length), "java/io/IOException", "setDataSourceFD failed." );
+}
+
+static void
+android_media_MediaPlayer2_setDataSourceCallback(JNIEnv *env, jobject thiz, jobject dataSource)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    if (dataSource == NULL) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return;
+    }
+    sp<DataSource> callbackDataSource = new JMedia2DataSource(env, dataSource);
+    process_media_player_call(env, thiz, mp->setDataSource(callbackDataSource), "java/lang/RuntimeException", "setDataSourceCallback failed." );
+}
+
+static sp<ANativeWindowWrapper>
+getVideoSurfaceTexture(JNIEnv* env, jobject thiz) {
+    ANativeWindow * const p = (ANativeWindow*)env->GetLongField(thiz, fields.surface_texture);
+    return new ANativeWindowWrapper(p);
+}
+
+static void
+decVideoSurfaceRef(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        return;
+    }
+
+    ANativeWindow * const old_anw = (ANativeWindow*)env->GetLongField(thiz, fields.surface_texture);
+    if (old_anw != NULL) {
+        ANativeWindow_release(old_anw);
+        env->SetLongField(thiz, fields.surface_texture, (jlong)NULL);
+    }
+}
+
+static void
+setVideoSurface(JNIEnv *env, jobject thiz, jobject jsurface, jboolean mediaPlayerMustBeAlive)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        if (mediaPlayerMustBeAlive) {
+            jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        }
+        return;
+    }
+
+    decVideoSurfaceRef(env, thiz);
+
+    ANativeWindow* anw = NULL;
+    if (jsurface) {
+        anw = ANativeWindow_fromSurface(env, jsurface);
+        if (anw == NULL) {
+            jniThrowException(env, "java/lang/IllegalArgumentException",
+                    "The surface has been released");
+            return;
+        }
+    }
+
+    env->SetLongField(thiz, fields.surface_texture, (jlong)anw);
+
+    // This will fail if the media player has not been initialized yet. This
+    // can be the case if setDisplay() on MediaPlayer2Impl.java has been called
+    // before setDataSource(). The redundant call to setVideoSurfaceTexture()
+    // in prepare/prepareAsync covers for this case.
+    mp->setVideoSurfaceTexture(new ANativeWindowWrapper(anw));
+}
+
+static void
+android_media_MediaPlayer2_setVideoSurface(JNIEnv *env, jobject thiz, jobject jsurface)
+{
+    setVideoSurface(env, thiz, jsurface, true /* mediaPlayerMustBeAlive */);
+}
+
+static jobject
+android_media_MediaPlayer2_getBufferingParams(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return NULL;
+    }
+
+    BufferingParams bp;
+    BufferingSettings &settings = bp.settings;
+    process_media_player_call(
+            env, thiz, mp->getBufferingSettings(&settings),
+            "java/lang/IllegalStateException", "unexpected error");
+    ALOGV("getBufferingSettings:{%s}", settings.toString().string());
+
+    return bp.asJobject(env, gBufferingParamsFields);
+}
+
+static void
+android_media_MediaPlayer2_setBufferingParams(JNIEnv *env, jobject thiz, jobject params)
+{
+    if (params == NULL) {
+        return;
+    }
+
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    BufferingParams bp;
+    bp.fillFromJobject(env, gBufferingParamsFields, params);
+    ALOGV("setBufferingParams:{%s}", bp.settings.toString().string());
+
+    process_media_player_call(
+            env, thiz, mp->setBufferingSettings(bp.settings),
+            "java/lang/IllegalStateException", "unexpected error");
+}
+
+static void
+android_media_MediaPlayer2_prepare(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    // Handle the case where the display surface was set before the mp was
+    // initialized. We try again to make it stick.
+    sp<ANativeWindowWrapper> st = getVideoSurfaceTexture(env, thiz);
+    mp->setVideoSurfaceTexture(st);
+
+    process_media_player_call( env, thiz, mp->prepare(), "java/io/IOException", "Prepare failed." );
+}
+
+static void
+android_media_MediaPlayer2_prepareAsync(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    // Handle the case where the display surface was set before the mp was
+    // initialized. We try again to make it stick.
+    sp<ANativeWindowWrapper> st = getVideoSurfaceTexture(env, thiz);
+    mp->setVideoSurfaceTexture(st);
+
+    process_media_player_call( env, thiz, mp->prepareAsync(), "java/io/IOException", "Prepare Async failed." );
+}
+
+static void
+android_media_MediaPlayer2_start(JNIEnv *env, jobject thiz)
+{
+    ALOGV("start");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->start(), NULL, NULL );
+}
+
+static void
+android_media_MediaPlayer2_stop(JNIEnv *env, jobject thiz)
+{
+    ALOGV("stop");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->stop(), NULL, NULL );
+}
+
+static void
+android_media_MediaPlayer2_pause(JNIEnv *env, jobject thiz)
+{
+    ALOGV("pause");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->pause(), NULL, NULL );
+}
+
+static jboolean
+android_media_MediaPlayer2_isPlaying(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return JNI_FALSE;
+    }
+    const jboolean is_playing = mp->isPlaying();
+
+    ALOGV("isPlaying: %d", is_playing);
+    return is_playing;
+}
+
+static void
+android_media_MediaPlayer2_setPlaybackParams(JNIEnv *env, jobject thiz, jobject params)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    PlaybackParams pbp;
+    pbp.fillFromJobject(env, gPlaybackParamsFields, params);
+    ALOGV("setPlaybackParams: %d:%f %d:%f %d:%u %d:%u",
+            pbp.speedSet, pbp.audioRate.mSpeed,
+            pbp.pitchSet, pbp.audioRate.mPitch,
+            pbp.audioFallbackModeSet, pbp.audioRate.mFallbackMode,
+            pbp.audioStretchModeSet, pbp.audioRate.mStretchMode);
+
+    AudioPlaybackRate rate;
+    status_t err = mp->getPlaybackSettings(&rate);
+    if (err == OK) {
+        bool updatedRate = false;
+        if (pbp.speedSet) {
+            rate.mSpeed = pbp.audioRate.mSpeed;
+            updatedRate = true;
+        }
+        if (pbp.pitchSet) {
+            rate.mPitch = pbp.audioRate.mPitch;
+            updatedRate = true;
+        }
+        if (pbp.audioFallbackModeSet) {
+            rate.mFallbackMode = pbp.audioRate.mFallbackMode;
+            updatedRate = true;
+        }
+        if (pbp.audioStretchModeSet) {
+            rate.mStretchMode = pbp.audioRate.mStretchMode;
+            updatedRate = true;
+        }
+        if (updatedRate) {
+            err = mp->setPlaybackSettings(rate);
+        }
+    }
+    process_media_player_call(
+            env, thiz, err,
+            "java/lang/IllegalStateException", "unexpected error");
+}
+
+static jobject
+android_media_MediaPlayer2_getPlaybackParams(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return NULL;
+    }
+
+    PlaybackParams pbp;
+    AudioPlaybackRate &audioRate = pbp.audioRate;
+    process_media_player_call(
+            env, thiz, mp->getPlaybackSettings(&audioRate),
+            "java/lang/IllegalStateException", "unexpected error");
+    ALOGV("getPlaybackSettings: %f %f %d %d",
+            audioRate.mSpeed, audioRate.mPitch, audioRate.mFallbackMode, audioRate.mStretchMode);
+
+    pbp.speedSet = true;
+    pbp.pitchSet = true;
+    pbp.audioFallbackModeSet = true;
+    pbp.audioStretchModeSet = true;
+
+    return pbp.asJobject(env, gPlaybackParamsFields);
+}
+
+static void
+android_media_MediaPlayer2_setSyncParams(JNIEnv *env, jobject thiz, jobject params)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    SyncParams scp;
+    scp.fillFromJobject(env, gSyncParamsFields, params);
+    ALOGV("setSyncParams: %d:%d %d:%d %d:%f %d:%f",
+          scp.syncSourceSet, scp.sync.mSource,
+          scp.audioAdjustModeSet, scp.sync.mAudioAdjustMode,
+          scp.toleranceSet, scp.sync.mTolerance,
+          scp.frameRateSet, scp.frameRate);
+
+    AVSyncSettings avsync;
+    float videoFrameRate;
+    status_t err = mp->getSyncSettings(&avsync, &videoFrameRate);
+    if (err == OK) {
+        bool updatedSync = scp.frameRateSet;
+        if (scp.syncSourceSet) {
+            avsync.mSource = scp.sync.mSource;
+            updatedSync = true;
+        }
+        if (scp.audioAdjustModeSet) {
+            avsync.mAudioAdjustMode = scp.sync.mAudioAdjustMode;
+            updatedSync = true;
+        }
+        if (scp.toleranceSet) {
+            avsync.mTolerance = scp.sync.mTolerance;
+            updatedSync = true;
+        }
+        if (updatedSync) {
+            err = mp->setSyncSettings(avsync, scp.frameRateSet ? scp.frameRate : -1.f);
+        }
+    }
+    process_media_player_call(
+            env, thiz, err,
+            "java/lang/IllegalStateException", "unexpected error");
+}
+
+static jobject
+android_media_MediaPlayer2_getSyncParams(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return NULL;
+    }
+
+    SyncParams scp;
+    scp.frameRate = -1.f;
+    process_media_player_call(
+            env, thiz, mp->getSyncSettings(&scp.sync, &scp.frameRate),
+            "java/lang/IllegalStateException", "unexpected error");
+
+    ALOGV("getSyncSettings: %d %d %f %f",
+            scp.sync.mSource, scp.sync.mAudioAdjustMode, scp.sync.mTolerance, scp.frameRate);
+
+    // sanity check params
+    if (scp.sync.mSource >= AVSYNC_SOURCE_MAX
+            || scp.sync.mAudioAdjustMode >= AVSYNC_AUDIO_ADJUST_MODE_MAX
+            || scp.sync.mTolerance < 0.f
+            || scp.sync.mTolerance >= AVSYNC_TOLERANCE_MAX) {
+        jniThrowException(env,  "java/lang/IllegalStateException", NULL);
+        return NULL;
+    }
+
+    scp.syncSourceSet = true;
+    scp.audioAdjustModeSet = true;
+    scp.toleranceSet = true;
+    scp.frameRateSet = scp.frameRate >= 0.f;
+
+    return scp.asJobject(env, gSyncParamsFields);
+}
+
+static void
+android_media_MediaPlayer2_seekTo(JNIEnv *env, jobject thiz, jlong msec, jint mode)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    ALOGV("seekTo: %lld(msec), mode=%d", (long long)msec, mode);
+    process_media_player_call( env, thiz, mp->seekTo((int)msec, (MediaPlayer2SeekMode)mode), NULL, NULL );
+}
+
+static void
+android_media_MediaPlayer2_notifyAt(JNIEnv *env, jobject thiz, jlong mediaTimeUs)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    ALOGV("notifyAt: %lld", (long long)mediaTimeUs);
+    process_media_player_call( env, thiz, mp->notifyAt((int64_t)mediaTimeUs), NULL, NULL );
+}
+
+static jint
+android_media_MediaPlayer2_getVideoWidth(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+    int w;
+    if (0 != mp->getVideoWidth(&w)) {
+        ALOGE("getVideoWidth failed");
+        w = 0;
+    }
+    ALOGV("getVideoWidth: %d", w);
+    return (jint) w;
+}
+
+static jint
+android_media_MediaPlayer2_getVideoHeight(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+    int h;
+    if (0 != mp->getVideoHeight(&h)) {
+        ALOGE("getVideoHeight failed");
+        h = 0;
+    }
+    ALOGV("getVideoHeight: %d", h);
+    return (jint) h;
+}
+
+static jobject
+android_media_MediaPlayer2_native_getMetrics(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+
+    Parcel p;
+    int key = FOURCC('m','t','r','X');
+    status_t status = mp->getParameter(key, &p);
+    if (status != OK) {
+        ALOGD("getMetrics() failed: %d", status);
+        return (jobject) NULL;
+    }
+
+    p.setDataPosition(0);
+    MediaAnalyticsItem *item = new MediaAnalyticsItem;
+    item->readFromParcel(p);
+    jobject mybundle = MediaMetricsJNI::writeMetricsToBundle(env, item, NULL);
+
+    // housekeeping
+    delete item;
+    item = NULL;
+
+    return mybundle;
+}
+
+static jint
+android_media_MediaPlayer2_getCurrentPosition(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+    int msec;
+    process_media_player_call( env, thiz, mp->getCurrentPosition(&msec), NULL, NULL );
+    ALOGV("getCurrentPosition: %d (msec)", msec);
+    return (jint) msec;
+}
+
+static jint
+android_media_MediaPlayer2_getDuration(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+    int msec;
+    process_media_player_call( env, thiz, mp->getDuration(&msec), NULL, NULL );
+    ALOGV("getDuration: %d (msec)", msec);
+    return (jint) msec;
+}
+
+static void
+android_media_MediaPlayer2_reset(JNIEnv *env, jobject thiz)
+{
+    ALOGV("reset");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->reset(), NULL, NULL );
+}
+
+static jint
+android_media_MediaPlayer2_getAudioStreamType(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+    audio_stream_type_t streamtype;
+    process_media_player_call( env, thiz, mp->getAudioStreamType(&streamtype), NULL, NULL );
+    ALOGV("getAudioStreamType: %d (streamtype)", streamtype);
+    return (jint) streamtype;
+}
+
+static jboolean
+android_media_MediaPlayer2_setParameter(JNIEnv *env, jobject thiz, jint key, jobject java_request)
+{
+    ALOGV("setParameter: key %d", key);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return false;
+    }
+
+    Parcel *request = parcelForJavaObject(env, java_request);
+    status_t err = mp->setParameter(key, *request);
+    if (err == OK) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+static void
+android_media_MediaPlayer2_setLooping(JNIEnv *env, jobject thiz, jboolean looping)
+{
+    ALOGV("setLooping: %d", looping);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->setLooping(looping), NULL, NULL );
+}
+
+static jboolean
+android_media_MediaPlayer2_isLooping(JNIEnv *env, jobject thiz)
+{
+    ALOGV("isLooping");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return JNI_FALSE;
+    }
+    return mp->isLooping() ? JNI_TRUE : JNI_FALSE;
+}
+
+static void
+android_media_MediaPlayer2_setVolume(JNIEnv *env, jobject thiz, jfloat leftVolume, jfloat rightVolume)
+{
+    ALOGV("setVolume: left %f  right %f", (float) leftVolume, (float) rightVolume);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->setVolume((float) leftVolume, (float) rightVolume), NULL, NULL );
+}
+
+// Sends the request and reply parcels to the media player via the
+// binder interface.
+static jint
+android_media_MediaPlayer2_invoke(JNIEnv *env, jobject thiz,
+                                 jobject java_request, jobject java_reply)
+{
+    sp<MediaPlayer2> media_player = getMediaPlayer(env, thiz);
+    if (media_player == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return UNKNOWN_ERROR;
+    }
+
+    Parcel *request = parcelForJavaObject(env, java_request);
+    Parcel *reply = parcelForJavaObject(env, java_reply);
+
+    request->setDataPosition(0);
+
+    // Don't use process_media_player_call which use the async loop to
+    // report errors, instead returns the status.
+    return (jint) media_player->invoke(*request, reply);
+}
+
+// Sends the new filter to the client.
+static jint
+android_media_MediaPlayer2_setMetadataFilter(JNIEnv *env, jobject thiz, jobject request)
+{
+    sp<MediaPlayer2> media_player = getMediaPlayer(env, thiz);
+    if (media_player == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return UNKNOWN_ERROR;
+    }
+
+    Parcel *filter = parcelForJavaObject(env, request);
+
+    if (filter == NULL ) {
+        jniThrowException(env, "java/lang/RuntimeException", "Filter is null");
+        return UNKNOWN_ERROR;
+    }
+
+    return (jint) media_player->setMetadataFilter(*filter);
+}
+
+static jboolean
+android_media_MediaPlayer2_getMetadata(JNIEnv *env, jobject thiz, jboolean update_only,
+                                      jboolean apply_filter, jobject reply)
+{
+    sp<MediaPlayer2> media_player = getMediaPlayer(env, thiz);
+    if (media_player == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return JNI_FALSE;
+    }
+
+    Parcel *metadata = parcelForJavaObject(env, reply);
+
+    if (metadata == NULL ) {
+        jniThrowException(env, "java/lang/RuntimeException", "Reply parcel is null");
+        return JNI_FALSE;
+    }
+
+    metadata->freeData();
+    // On return metadata is positioned at the beginning of the
+    // metadata. Note however that the parcel actually starts with the
+    // return code so you should not rewind the parcel using
+    // setDataPosition(0).
+    if (media_player->getMetadata(update_only, apply_filter, metadata) == OK) {
+        return JNI_TRUE;
+    } else {
+        return JNI_FALSE;
+    }
+}
+
+// This function gets some field IDs, which in turn causes class initialization.
+// It is called from a static block in MediaPlayer2, which won't run until the
+// first time an instance of this class is used.
+static void
+android_media_MediaPlayer2_native_init(JNIEnv *env)
+{
+    jclass clazz;
+
+    clazz = env->FindClass("android/media/MediaPlayer2Impl");
+    if (clazz == NULL) {
+        return;
+    }
+
+    fields.context = env->GetFieldID(clazz, "mNativeContext", "J");
+    if (fields.context == NULL) {
+        return;
+    }
+
+    fields.post_event = env->GetStaticMethodID(clazz, "postEventFromNative",
+                                               "(Ljava/lang/Object;IIILjava/lang/Object;)V");
+    if (fields.post_event == NULL) {
+        return;
+    }
+
+    fields.surface_texture = env->GetFieldID(clazz, "mNativeSurfaceTexture", "J");
+    if (fields.surface_texture == NULL) {
+        return;
+    }
+
+    env->DeleteLocalRef(clazz);
+
+    clazz = env->FindClass("android/net/ProxyInfo");
+    if (clazz == NULL) {
+        return;
+    }
+
+    fields.proxyConfigGetHost =
+        env->GetMethodID(clazz, "getHost", "()Ljava/lang/String;");
+
+    fields.proxyConfigGetPort =
+        env->GetMethodID(clazz, "getPort", "()I");
+
+    fields.proxyConfigGetExclusionList =
+        env->GetMethodID(clazz, "getExclusionListAsString", "()Ljava/lang/String;");
+
+    env->DeleteLocalRef(clazz);
+
+    gBufferingParamsFields.init(env);
+
+    // Modular DRM
+    FIND_CLASS(clazz, "android/media/MediaDrm$MediaDrmStateException");
+    if (clazz) {
+        GET_METHOD_ID(gStateExceptionFields.init, clazz, "<init>", "(ILjava/lang/String;)V");
+        gStateExceptionFields.classId = static_cast<jclass>(env->NewGlobalRef(clazz));
+
+        env->DeleteLocalRef(clazz);
+    } else {
+        ALOGE("JNI android_media_MediaPlayer2_native_init couldn't "
+              "get clazz android/media/MediaDrm$MediaDrmStateException");
+    }
+
+    gPlaybackParamsFields.init(env);
+    gSyncParamsFields.init(env);
+    gVolumeShaperFields.init(env);
+}
+
+static void
+android_media_MediaPlayer2_native_setup(JNIEnv *env, jobject thiz, jobject weak_this)
+{
+    ALOGV("native_setup");
+    sp<MediaPlayer2> mp = new MediaPlayer2();
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/RuntimeException", "Out of memory");
+        return;
+    }
+
+    // create new listener and give it to MediaPlayer2
+    sp<JNIMediaPlayer2Listener> listener = new JNIMediaPlayer2Listener(env, thiz, weak_this);
+    mp->setListener(listener);
+
+    // Stow our new C++ MediaPlayer2 in an opaque field in the Java object.
+    setMediaPlayer(env, thiz, mp);
+}
+
+static void
+android_media_MediaPlayer2_release(JNIEnv *env, jobject thiz)
+{
+    ALOGV("release");
+    decVideoSurfaceRef(env, thiz);
+    sp<MediaPlayer2> mp = setMediaPlayer(env, thiz, 0);
+    if (mp != NULL) {
+        // this prevents native callbacks after the object is released
+        mp->setListener(0);
+        mp->disconnect();
+    }
+}
+
+static void
+android_media_MediaPlayer2_native_finalize(JNIEnv *env, jobject thiz)
+{
+    ALOGV("native_finalize");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp != NULL) {
+        ALOGW("MediaPlayer2 finalized without being released");
+    }
+    android_media_MediaPlayer2_release(env, thiz);
+}
+
+static void android_media_MediaPlayer2_set_audio_session_id(JNIEnv *env,  jobject thiz,
+        jint sessionId) {
+    ALOGV("set_session_id(): %d", sessionId);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->setAudioSessionId((audio_session_t) sessionId), NULL,
+            NULL);
+}
+
+static jint android_media_MediaPlayer2_get_audio_session_id(JNIEnv *env,  jobject thiz) {
+    ALOGV("get_session_id()");
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return 0;
+    }
+
+    return (jint) mp->getAudioSessionId();
+}
+
+static void
+android_media_MediaPlayer2_setAuxEffectSendLevel(JNIEnv *env, jobject thiz, jfloat level)
+{
+    ALOGV("setAuxEffectSendLevel: level %f", level);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->setAuxEffectSendLevel(level), NULL, NULL );
+}
+
+static void android_media_MediaPlayer2_attachAuxEffect(JNIEnv *env,  jobject thiz, jint effectId) {
+    ALOGV("attachAuxEffect(): %d", effectId);
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+    process_media_player_call( env, thiz, mp->attachAuxEffect(effectId), NULL, NULL );
+}
+
+static jint
+android_media_MediaPlayer2_setRetransmitEndpoint(JNIEnv *env, jobject thiz,
+                                                jstring addrString, jint port) {
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return INVALID_OPERATION;
+    }
+
+    const char *cAddrString = NULL;
+
+    if (NULL != addrString) {
+        cAddrString = env->GetStringUTFChars(addrString, NULL);
+        if (cAddrString == NULL) {  // Out of memory
+            return NO_MEMORY;
+        }
+    }
+    ALOGV("setRetransmitEndpoint: %s:%d",
+            cAddrString ? cAddrString : "(null)", port);
+
+    status_t ret;
+    if (cAddrString && (port > 0xFFFF)) {
+        ret = BAD_VALUE;
+    } else {
+        ret = mp->setRetransmitEndpoint(cAddrString,
+                static_cast<uint16_t>(port));
+    }
+
+    if (NULL != addrString) {
+        env->ReleaseStringUTFChars(addrString, cAddrString);
+    }
+
+    if (ret == INVALID_OPERATION ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+    }
+
+    return (jint) ret;
+}
+
+static void
+android_media_MediaPlayer2_setNextMediaPlayer(JNIEnv *env, jobject thiz, jobject java_player)
+{
+    ALOGV("setNextMediaPlayer");
+    sp<MediaPlayer2> thisplayer = getMediaPlayer(env, thiz);
+    if (thisplayer == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", "This player not initialized");
+        return;
+    }
+    sp<MediaPlayer2> nextplayer = (java_player == NULL) ? NULL : getMediaPlayer(env, java_player);
+    if (nextplayer == NULL && java_player != NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", "That player not initialized");
+        return;
+    }
+
+    if (nextplayer == thisplayer) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", "Next player can't be self");
+        return;
+    }
+    // tie the two players together
+    process_media_player_call(
+            env, thiz, thisplayer->setNextMediaPlayer(nextplayer),
+            "java/lang/IllegalArgumentException",
+            "setNextMediaPlayer failed." );
+    ;
+}
+
+// Pass through the arguments to the MediaServer player implementation.
+static jint android_media_MediaPlayer2_applyVolumeShaper(JNIEnv *env, jobject thiz,
+        jobject jconfig, jobject joperation) {
+    // NOTE: hard code here to prevent platform issues. Must match VolumeShaper.java
+    const int VOLUME_SHAPER_INVALID_OPERATION = -38;
+
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == nullptr) {
+        return (jint)VOLUME_SHAPER_INVALID_OPERATION;
+    }
+
+    sp<VolumeShaper::Configuration> configuration;
+    sp<VolumeShaper::Operation> operation;
+    if (jconfig != nullptr) {
+        configuration = VolumeShaperHelper::convertJobjectToConfiguration(
+                env, gVolumeShaperFields, jconfig);
+        ALOGV("applyVolumeShaper configuration: %s", configuration->toString().c_str());
+    }
+    if (joperation != nullptr) {
+        operation = VolumeShaperHelper::convertJobjectToOperation(
+                env, gVolumeShaperFields, joperation);
+        ALOGV("applyVolumeShaper operation: %s", operation->toString().c_str());
+    }
+    VolumeShaper::Status status = mp->applyVolumeShaper(configuration, operation);
+    if (status == INVALID_OPERATION) {
+        status = VOLUME_SHAPER_INVALID_OPERATION;
+    }
+    return (jint)status; // if status < 0 an error, else a VolumeShaper id
+}
+
+// Pass through the arguments to the MediaServer player implementation.
+static jobject android_media_MediaPlayer2_getVolumeShaperState(JNIEnv *env, jobject thiz,
+        jint id) {
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == nullptr) {
+        return (jobject)nullptr;
+    }
+
+    sp<VolumeShaper::State> state = mp->getVolumeShaperState((int)id);
+    if (state.get() == nullptr) {
+        return (jobject)nullptr;
+    }
+    return VolumeShaperHelper::convertStateToJobject(env, gVolumeShaperFields, state);
+}
+
+/////////////////////////////////////////////////////////////////////////////////////
+// Modular DRM begin
+
+// TODO: investigate if these can be shared with their MediaDrm counterparts
+static void throwDrmStateException(JNIEnv *env, const char *msg, status_t err)
+{
+    ALOGE("Illegal DRM state exception: %s (%d)", msg, err);
+
+    jobject exception = env->NewObject(gStateExceptionFields.classId,
+            gStateExceptionFields.init, static_cast<int>(err),
+            env->NewStringUTF(msg));
+    env->Throw(static_cast<jthrowable>(exception));
+}
+
+// TODO: investigate if these can be shared with their MediaDrm counterparts
+static bool throwDrmExceptionAsNecessary(JNIEnv *env, status_t err, const char *msg = NULL)
+{
+    const char *drmMessage = "Unknown DRM Msg";
+
+    switch (err) {
+    case ERROR_DRM_UNKNOWN:
+        drmMessage = "General DRM error";
+        break;
+    case ERROR_DRM_NO_LICENSE:
+        drmMessage = "No license";
+        break;
+    case ERROR_DRM_LICENSE_EXPIRED:
+        drmMessage = "License expired";
+        break;
+    case ERROR_DRM_SESSION_NOT_OPENED:
+        drmMessage = "Session not opened";
+        break;
+    case ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED:
+        drmMessage = "Not initialized";
+        break;
+    case ERROR_DRM_DECRYPT:
+        drmMessage = "Decrypt error";
+        break;
+    case ERROR_DRM_CANNOT_HANDLE:
+        drmMessage = "Unsupported scheme or data format";
+        break;
+    case ERROR_DRM_TAMPER_DETECTED:
+        drmMessage = "Invalid state";
+        break;
+    default:
+        break;
+    }
+
+    String8 vendorMessage;
+    if (err >= ERROR_DRM_VENDOR_MIN && err <= ERROR_DRM_VENDOR_MAX) {
+        vendorMessage = String8::format("DRM vendor-defined error: %d", err);
+        drmMessage = vendorMessage.string();
+    }
+
+    if (err == BAD_VALUE) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", msg);
+        return true;
+    } else if (err == ERROR_DRM_NOT_PROVISIONED) {
+        jniThrowException(env, "android/media/NotProvisionedException", msg);
+        return true;
+    } else if (err == ERROR_DRM_RESOURCE_BUSY) {
+        jniThrowException(env, "android/media/ResourceBusyException", msg);
+        return true;
+    } else if (err == ERROR_DRM_DEVICE_REVOKED) {
+        jniThrowException(env, "android/media/DeniedByServerException", msg);
+        return true;
+    } else if (err == DEAD_OBJECT) {
+        jniThrowException(env, "android/media/MediaDrmResetException",
+                          "mediaserver died");
+        return true;
+    } else if (err != OK) {
+        String8 errbuf;
+        if (drmMessage != NULL) {
+            if (msg == NULL) {
+                msg = drmMessage;
+            } else {
+                errbuf = String8::format("%s: %s", msg, drmMessage);
+                msg = errbuf.string();
+            }
+        }
+        throwDrmStateException(env, msg, err);
+        return true;
+    }
+    return false;
+}
+
+static Vector<uint8_t> JByteArrayToVector(JNIEnv *env, jbyteArray const &byteArray)
+{
+    Vector<uint8_t> vector;
+    size_t length = env->GetArrayLength(byteArray);
+    vector.insertAt((size_t)0, length);
+    env->GetByteArrayRegion(byteArray, 0, length, (jbyte *)vector.editArray());
+    return vector;
+}
+
+static void android_media_MediaPlayer2_prepareDrm(JNIEnv *env, jobject thiz,
+                    jbyteArray uuidObj, jbyteArray drmSessionIdObj)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    if (uuidObj == NULL) {
+        jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+        return;
+    }
+
+    Vector<uint8_t> uuid = JByteArrayToVector(env, uuidObj);
+
+    if (uuid.size() != 16) {
+        jniThrowException(
+                          env,
+                          "java/lang/IllegalArgumentException",
+                          "invalid UUID size, expected 16 bytes");
+        return;
+    }
+
+    Vector<uint8_t> drmSessionId = JByteArrayToVector(env, drmSessionIdObj);
+
+    if (drmSessionId.size() == 0) {
+        jniThrowException(
+                          env,
+                          "java/lang/IllegalArgumentException",
+                          "empty drmSessionId");
+        return;
+    }
+
+    status_t err = mp->prepareDrm(uuid.array(), drmSessionId);
+    if (err != OK) {
+        if (err == INVALID_OPERATION) {
+            jniThrowException(
+                              env,
+                              "java/lang/IllegalStateException",
+                              "The player must be in prepared state.");
+        } else if (err == ERROR_DRM_CANNOT_HANDLE) {
+            jniThrowException(
+                              env,
+                              "android/media/UnsupportedSchemeException",
+                              "Failed to instantiate drm object.");
+        } else {
+            throwDrmExceptionAsNecessary(env, err, "Failed to prepare DRM scheme");
+        }
+    }
+}
+
+static void android_media_MediaPlayer2_releaseDrm(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL ) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    status_t err = mp->releaseDrm();
+    if (err != OK) {
+        if (err == INVALID_OPERATION) {
+            jniThrowException(
+                              env,
+                              "java/lang/IllegalStateException",
+                              "Can not release DRM in an active player state.");
+        }
+    }
+}
+// Modular DRM end
+// ----------------------------------------------------------------------------
+
+/////////////////////////////////////////////////////////////////////////////////////
+// AudioRouting begin
+static jboolean android_media_MediaPlayer2_setOutputDevice(JNIEnv *env, jobject thiz, jint device_id)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        return false;
+    }
+    return mp->setOutputDevice(device_id) == NO_ERROR;
+}
+
+static jint android_media_MediaPlayer2_getRoutedDeviceId(JNIEnv *env, jobject thiz)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        return AUDIO_PORT_HANDLE_NONE;
+    }
+    return mp->getRoutedDeviceId();
+}
+
+static void android_media_MediaPlayer2_enableDeviceCallback(
+        JNIEnv* env, jobject thiz, jboolean enabled)
+{
+    sp<MediaPlayer2> mp = getMediaPlayer(env, thiz);
+    if (mp == NULL) {
+        return;
+    }
+
+    status_t status = mp->enableAudioDeviceCallback(enabled);
+    if (status != NO_ERROR) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        ALOGE("enable device callback failed: %d", status);
+    }
+}
+
+// AudioRouting end
+// ----------------------------------------------------------------------------
+
+static const JNINativeMethod gMethods[] = {
+    {
+        "nativeSetDataSource",
+        "(Landroid/media/Media2HTTPService;Ljava/lang/String;[Ljava/lang/String;"
+        "[Ljava/lang/String;)V",
+        (void *)android_media_MediaPlayer2_setDataSourceAndHeaders
+    },
+
+    {"_setDataSource",      "(Ljava/io/FileDescriptor;JJ)V",    (void *)android_media_MediaPlayer2_setDataSourceFD},
+    {"_setDataSource",      "(Landroid/media/Media2DataSource;)V",(void *)android_media_MediaPlayer2_setDataSourceCallback },
+    {"_setVideoSurface",    "(Landroid/view/Surface;)V",        (void *)android_media_MediaPlayer2_setVideoSurface},
+    {"getBufferingParams", "()Landroid/media/BufferingParams;", (void *)android_media_MediaPlayer2_getBufferingParams},
+    {"setBufferingParams", "(Landroid/media/BufferingParams;)V", (void *)android_media_MediaPlayer2_setBufferingParams},
+    {"_prepare",            "()V",                              (void *)android_media_MediaPlayer2_prepare},
+    {"prepareAsync",        "()V",                              (void *)android_media_MediaPlayer2_prepareAsync},
+    {"_start",              "()V",                              (void *)android_media_MediaPlayer2_start},
+    {"_stop",               "()V",                              (void *)android_media_MediaPlayer2_stop},
+    {"getVideoWidth",       "()I",                              (void *)android_media_MediaPlayer2_getVideoWidth},
+    {"getVideoHeight",      "()I",                              (void *)android_media_MediaPlayer2_getVideoHeight},
+    {"native_getMetrics",   "()Landroid/os/PersistableBundle;", (void *)android_media_MediaPlayer2_native_getMetrics},
+    {"setPlaybackParams", "(Landroid/media/PlaybackParams;)V", (void *)android_media_MediaPlayer2_setPlaybackParams},
+    {"getPlaybackParams", "()Landroid/media/PlaybackParams;", (void *)android_media_MediaPlayer2_getPlaybackParams},
+    {"setSyncParams",     "(Landroid/media/SyncParams;)V",  (void *)android_media_MediaPlayer2_setSyncParams},
+    {"getSyncParams",     "()Landroid/media/SyncParams;",   (void *)android_media_MediaPlayer2_getSyncParams},
+    {"_seekTo",             "(JI)V",                            (void *)android_media_MediaPlayer2_seekTo},
+    {"_notifyAt",           "(J)V",                             (void *)android_media_MediaPlayer2_notifyAt},
+    {"_pause",              "()V",                              (void *)android_media_MediaPlayer2_pause},
+    {"isPlaying",           "()Z",                              (void *)android_media_MediaPlayer2_isPlaying},
+    {"getCurrentPosition",  "()I",                              (void *)android_media_MediaPlayer2_getCurrentPosition},
+    {"getDuration",         "()I",                              (void *)android_media_MediaPlayer2_getDuration},
+    {"_release",            "()V",                              (void *)android_media_MediaPlayer2_release},
+    {"_reset",              "()V",                              (void *)android_media_MediaPlayer2_reset},
+    {"_getAudioStreamType", "()I",                              (void *)android_media_MediaPlayer2_getAudioStreamType},
+    {"setParameter",        "(ILandroid/os/Parcel;)Z",          (void *)android_media_MediaPlayer2_setParameter},
+    {"setLooping",          "(Z)V",                             (void *)android_media_MediaPlayer2_setLooping},
+    {"isLooping",           "()Z",                              (void *)android_media_MediaPlayer2_isLooping},
+    {"_setVolume",          "(FF)V",                            (void *)android_media_MediaPlayer2_setVolume},
+    {"native_invoke",       "(Landroid/os/Parcel;Landroid/os/Parcel;)I",(void *)android_media_MediaPlayer2_invoke},
+    {"native_setMetadataFilter", "(Landroid/os/Parcel;)I",      (void *)android_media_MediaPlayer2_setMetadataFilter},
+    {"native_getMetadata", "(ZZLandroid/os/Parcel;)Z",          (void *)android_media_MediaPlayer2_getMetadata},
+    {"native_init",         "()V",                              (void *)android_media_MediaPlayer2_native_init},
+    {"native_setup",        "(Ljava/lang/Object;)V",            (void *)android_media_MediaPlayer2_native_setup},
+    {"native_finalize",     "()V",                              (void *)android_media_MediaPlayer2_native_finalize},
+    {"getAudioSessionId",   "()I",                              (void *)android_media_MediaPlayer2_get_audio_session_id},
+    {"setAudioSessionId",   "(I)V",                             (void *)android_media_MediaPlayer2_set_audio_session_id},
+    {"_setAuxEffectSendLevel", "(F)V",                          (void *)android_media_MediaPlayer2_setAuxEffectSendLevel},
+    {"attachAuxEffect",     "(I)V",                             (void *)android_media_MediaPlayer2_attachAuxEffect},
+    {"native_setRetransmitEndpoint", "(Ljava/lang/String;I)I",  (void *)android_media_MediaPlayer2_setRetransmitEndpoint},
+    {"setNextMediaPlayer",  "(Landroid/media/MediaPlayer2;)V",  (void *)android_media_MediaPlayer2_setNextMediaPlayer},
+    {"native_applyVolumeShaper",
+                            "(Landroid/media/VolumeShaper$Configuration;Landroid/media/VolumeShaper$Operation;)I",
+                                                                (void *)android_media_MediaPlayer2_applyVolumeShaper},
+    {"native_getVolumeShaperState",
+                            "(I)Landroid/media/VolumeShaper$State;",
+                                                                (void *)android_media_MediaPlayer2_getVolumeShaperState},
+    // Modular DRM
+    { "_prepareDrm", "([B[B)V",                                 (void *)android_media_MediaPlayer2_prepareDrm },
+    { "_releaseDrm", "()V",                                     (void *)android_media_MediaPlayer2_releaseDrm },
+
+    // AudioRouting
+    {"native_setOutputDevice", "(I)Z",                          (void *)android_media_MediaPlayer2_setOutputDevice},
+    {"native_getRoutedDeviceId", "()I",                         (void *)android_media_MediaPlayer2_getRoutedDeviceId},
+    {"native_enableDeviceCallback", "(Z)V",                     (void *)android_media_MediaPlayer2_enableDeviceCallback},
+};
+
+// This function only registers the native methods
+static int register_android_media_MediaPlayer2Impl(JNIEnv *env)
+{
+    return AndroidRuntime::registerNativeMethods(env,
+                "android/media/MediaPlayer2Impl", gMethods, NELEM(gMethods));
+}
+
+jint JNI_OnLoad(JavaVM* vm, void* /* reserved */)
+{
+    JNIEnv* env = NULL;
+    jint result = -1;
+
+    if (vm->GetEnv((void**) &env, JNI_VERSION_1_4) != JNI_OK) {
+        ALOGE("ERROR: GetEnv failed\n");
+        goto bail;
+    }
+    assert(env != NULL);
+
+    if (register_android_media_MediaPlayer2Impl(env) < 0) {
+        ALOGE("ERROR: MediaPlayer2 native registration failed\n");
+        goto bail;
+    }
+
+    /* success -- return valid version number */
+    result = JNI_VERSION_1_4;
+
+bail:
+    return result;
+}
+
+// KTHXBYE
diff --git a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraBinderTest.java b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraBinderTest.java
index cf5882f..d8c975f 100644
--- a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraBinderTest.java
+++ b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraBinderTest.java
@@ -25,6 +25,7 @@
 import android.hardware.camera2.ICameraDeviceUser;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.impl.CaptureResultExtras;
+import android.hardware.camera2.impl.PhysicalCaptureResultInfo;
 import android.os.Binder;
 import android.os.IBinder;
 import android.os.RemoteException;
@@ -230,8 +231,8 @@
          * android.hardware.camera2.CaptureResultExtras)
          */
         @Override
-        public void onResultReceived(CameraMetadataNative result, CaptureResultExtras resultExtras)
-                throws RemoteException {
+        public void onResultReceived(CameraMetadataNative result, CaptureResultExtras resultExtras,
+                PhysicalCaptureResultInfo physicalResults[]) throws RemoteException {
             // TODO Auto-generated method stub
 
         }
diff --git a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraDeviceBinderTest.java b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraDeviceBinderTest.java
index 4c96d89..30561ba 100644
--- a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraDeviceBinderTest.java
+++ b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/integration/CameraDeviceBinderTest.java
@@ -35,6 +35,7 @@
 import android.hardware.camera2.ICameraDeviceUser;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.impl.CaptureResultExtras;
+import android.hardware.camera2.impl.PhysicalCaptureResultInfo;
 import android.hardware.camera2.params.OutputConfiguration;
 import android.hardware.camera2.utils.SubmitInfo;
 import android.media.Image;
@@ -135,8 +136,8 @@
          * android.hardware.camera2.impl.CameraMetadataNative,
          * android.hardware.camera2.CaptureResultExtras)
          */
-        public void onResultReceived(CameraMetadataNative result, CaptureResultExtras resultExtras)
-                throws RemoteException {
+        public void onResultReceived(CameraMetadataNative result, CaptureResultExtras resultExtras,
+                PhysicalCaptureResultInfo physicalResults[]) throws RemoteException {
             // TODO Auto-generated method stub
 
         }
@@ -445,12 +446,14 @@
         // Test both single request and streaming request.
         verify(mMockCb, timeout(WAIT_FOR_COMPLETE_TIMEOUT_MS).times(1)).onResultReceived(
                 argThat(matcher),
-                any(CaptureResultExtras.class));
+                any(CaptureResultExtras.class),
+                any(PhysicalCaptureResultInfo[].class));
 
         verify(mMockCb, timeout(WAIT_FOR_COMPLETE_TIMEOUT_MS).atLeast(NUM_CALLBACKS_CHECKED))
                 .onResultReceived(
                         argThat(matcher),
-                        any(CaptureResultExtras.class));
+                        any(CaptureResultExtras.class),
+                        any(PhysicalCaptureResultInfo[].class));
     }
 
     @SmallTest
diff --git a/native/android/asset_manager.cpp b/native/android/asset_manager.cpp
index 98e9a42..e70d5ea 100644
--- a/native/android/asset_manager.cpp
+++ b/native/android/asset_manager.cpp
@@ -18,9 +18,11 @@
 #include <utils/Log.h>
 
 #include <android/asset_manager_jni.h>
+#include <android_runtime/android_util_AssetManager.h>
 #include <androidfw/Asset.h>
 #include <androidfw/AssetDir.h>
 #include <androidfw/AssetManager.h>
+#include <androidfw/AssetManager2.h>
 #include <utils/threads.h>
 
 #include "jni.h"
@@ -35,21 +37,20 @@
 
 // -----
 struct AAssetDir {
-    AssetDir* mAssetDir;
+    std::unique_ptr<AssetDir> mAssetDir;
     size_t mCurFileIndex;
     String8 mCachedFileName;
 
-    explicit AAssetDir(AssetDir* dir) : mAssetDir(dir), mCurFileIndex(0) { }
-    ~AAssetDir() { delete mAssetDir; }
+    explicit AAssetDir(std::unique_ptr<AssetDir> dir) :
+        mAssetDir(std::move(dir)), mCurFileIndex(0) { }
 };
 
 
 // -----
 struct AAsset {
-    Asset* mAsset;
+    std::unique_ptr<Asset> mAsset;
 
-    explicit AAsset(Asset* asset) : mAsset(asset) { }
-    ~AAsset() { delete mAsset; }
+    explicit AAsset(std::unique_ptr<Asset> asset) : mAsset(std::move(asset)) { }
 };
 
 // -------------------- Public native C API --------------------
@@ -104,19 +105,18 @@
         return NULL;
     }
 
-    AssetManager* mgr = static_cast<AssetManager*>(amgr);
-    Asset* asset = mgr->open(filename, amMode);
-    if (asset == NULL) {
-        return NULL;
+    ScopedLock<AssetManager2> locked_mgr(*AssetManagerForNdkAssetManager(amgr));
+    std::unique_ptr<Asset> asset = locked_mgr->Open(filename, amMode);
+    if (asset == nullptr) {
+        return nullptr;
     }
-
-    return new AAsset(asset);
+    return new AAsset(std::move(asset));
 }
 
 AAssetDir* AAssetManager_openDir(AAssetManager* amgr, const char* dirName)
 {
-    AssetManager* mgr = static_cast<AssetManager*>(amgr);
-    return new AAssetDir(mgr->openDir(dirName));
+    ScopedLock<AssetManager2> locked_mgr(*AssetManagerForNdkAssetManager(amgr));
+    return new AAssetDir(locked_mgr->OpenDir(dirName));
 }
 
 /**
diff --git a/packages/MtpDocumentsProvider/AndroidManifest.xml b/packages/MtpDocumentsProvider/AndroidManifest.xml
index 8d79f62..c0a59b3 100644
--- a/packages/MtpDocumentsProvider/AndroidManifest.xml
+++ b/packages/MtpDocumentsProvider/AndroidManifest.xml
@@ -3,6 +3,7 @@
           package="com.android.mtp"
           android:sharedUserId="android.media">
     <uses-feature android:name="android.hardware.usb.host" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.MANAGE_USB" />
     <application android:label="@string/app_label">
         <provider
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index 5dcc927..4156653 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -1030,4 +1030,17 @@
     <!-- Content description of zen mode time condition minus button (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_manual_zen_less_time">Less time.</string>
 
+    <!--  Do not disturb: Label for button in enable zen dialog that will turn on zen mode. [CHAR LIMIT=30] -->
+    <string name="zen_mode_enable_dialog_turn_on">Turn on</string>
+    <!-- Button label for generic cancel action [CHAR LIMIT=20] -->
+    <string name="cancel">Cancel</string>
+    <!-- Do not disturb: Title for the Do not Disturb dialog to turn on Do not disturb. [CHAR LIMIT=50]-->
+    <string name="zen_mode_settings_turn_on_dialog_title">Turn on Do Not Disturb</string>
+    <!-- Sound: Summary for the Do not Disturb option when there is no automatic rules turned on. [CHAR LIMIT=NONE]-->
+    <string name="zen_mode_settings_summary_off">Never</string>
+    <!--[CHAR LIMIT=40] Zen Interruption level: Priority.  -->
+    <string name="zen_interruption_level_priority">Priority only</string>
+    <!-- [CHAR LIMIT=20] Accessibility string for current zen mode and selected exit condition. A template that simply concatenates existing mode string and the current condition description.  -->
+    <string name="zen_mode_and_condition"><xliff:g id="zen_mode" example="Priority interruptions only">%1$s</xliff:g>. <xliff:g id="exit_condition" example="For one hour">%2$s</xliff:g></string>
+
 </resources>
diff --git a/packages/SettingsLib/src/com/android/settingslib/Utils.java b/packages/SettingsLib/src/com/android/settingslib/Utils.java
index d001e66..1f67dfb 100644
--- a/packages/SettingsLib/src/com/android/settingslib/Utils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/Utils.java
@@ -44,7 +44,11 @@
         com.android.internal.R.drawable.ic_wifi_signal_4
     };
 
-    public static void updateLocationEnabled(Context context, boolean enabled, int userId) {
+    public static void updateLocationEnabled(Context context, boolean enabled, int userId,
+            int source) {
+        Settings.Secure.putIntForUser(
+                context.getContentResolver(), Settings.Secure.LOCATION_CHANGER, source,
+                userId);
         Intent intent = new Intent(LocationManager.MODE_CHANGING_ACTION);
 
         final int oldMode = Settings.Secure.getIntForUser(context.getContentResolver(),
@@ -62,7 +66,11 @@
         wrapper.setLocationEnabledForUser(enabled, UserHandle.of(userId));
     }
 
-    public static boolean updateLocationMode(Context context, int oldMode, int newMode, int userId) {
+    public static boolean updateLocationMode(Context context, int oldMode, int newMode, int userId,
+            int source) {
+        Settings.Secure.putIntForUser(
+                context.getContentResolver(), Settings.Secure.LOCATION_CHANGER, source,
+                userId);
         Intent intent = new Intent(LocationManager.MODE_CHANGING_ACTION);
         intent.putExtra(CURRENT_MODE_KEY, oldMode);
         intent.putExtra(NEW_MODE_KEY, newMode);
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/A2dpProfile.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/A2dpProfile.java
index 9b69304..6b99024 100755
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/A2dpProfile.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/A2dpProfile.java
@@ -219,8 +219,8 @@
             return true;
         }
         BluetoothCodecConfig codecConfig = null;
-        if (mServiceWrapper.getCodecStatus() != null) {
-            codecConfig = mServiceWrapper.getCodecStatus().getCodecConfig();
+        if (mServiceWrapper.getCodecStatus(device) != null) {
+            codecConfig = mServiceWrapper.getCodecStatus(device).getCodecConfig();
         }
         if (codecConfig != null)  {
             return !codecConfig.isMandatoryCodec();
@@ -238,9 +238,9 @@
             return;
         }
         if (enabled) {
-            mService.enableOptionalCodecs();
+            mService.enableOptionalCodecs(device);
         } else {
-            mService.disableOptionalCodecs();
+            mService.disableOptionalCodecs(device);
         }
     }
 
@@ -253,8 +253,8 @@
         // We want to get the highest priority codec, since that's the one that will be used with
         // this device, and see if it is high-quality (ie non-mandatory).
         BluetoothCodecConfig[] selectable = null;
-        if (mServiceWrapper.getCodecStatus() != null) {
-            selectable = mServiceWrapper.getCodecStatus().getCodecsSelectableCapabilities();
+        if (mServiceWrapper.getCodecStatus(device) != null) {
+            selectable = mServiceWrapper.getCodecStatus(device).getCodecsSelectableCapabilities();
             // To get the highest priority, we sort in reverse.
             Arrays.sort(selectable,
                     (a, b) -> {
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/EventLogWriter.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/EventLogWriter.java
new file mode 100644
index 0000000..7227304
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/EventLogWriter.java
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.core.instrumentation;
+
+import android.content.Context;
+import android.metrics.LogMaker;
+import android.util.Log;
+import android.util.Pair;
+
+import com.android.internal.logging.MetricsLogger;
+import com.android.internal.logging.nano.MetricsProto;
+
+/**
+ * {@link LogWriter} that writes data to eventlog.
+ */
+public class EventLogWriter implements LogWriter {
+
+    private final MetricsLogger mMetricsLogger = new MetricsLogger();
+
+    public void visible(Context context, int source, int category) {
+        final LogMaker logMaker = new LogMaker(category)
+                .setType(MetricsProto.MetricsEvent.TYPE_OPEN)
+                .addTaggedData(MetricsProto.MetricsEvent.FIELD_CONTEXT, source);
+        MetricsLogger.action(logMaker);
+    }
+
+    public void hidden(Context context, int category) {
+        MetricsLogger.hidden(context, category);
+    }
+
+    public void action(int category, int value, Pair<Integer, Object>... taggedData) {
+        if (taggedData == null || taggedData.length == 0) {
+            mMetricsLogger.action(category, value);
+        } else {
+            final LogMaker logMaker = new LogMaker(category)
+                    .setType(MetricsProto.MetricsEvent.TYPE_ACTION)
+                    .setSubtype(value);
+            for (Pair<Integer, Object> pair : taggedData) {
+                logMaker.addTaggedData(pair.first, pair.second);
+            }
+            mMetricsLogger.write(logMaker);
+        }
+    }
+
+    public void action(int category, boolean value, Pair<Integer, Object>... taggedData) {
+        action(category, value ? 1 : 0, taggedData);
+    }
+
+    public void action(Context context, int category, Pair<Integer, Object>... taggedData) {
+        action(context, category, "", taggedData);
+    }
+
+    public void actionWithSource(Context context, int source, int category) {
+        final LogMaker logMaker = new LogMaker(category)
+                .setType(MetricsProto.MetricsEvent.TYPE_ACTION);
+        if (source != MetricsProto.MetricsEvent.VIEW_UNKNOWN) {
+            logMaker.addTaggedData(MetricsProto.MetricsEvent.FIELD_CONTEXT, source);
+        }
+        MetricsLogger.action(logMaker);
+    }
+
+    /** @deprecated use {@link #action(int, int, Pair[])} */
+    @Deprecated
+    public void action(Context context, int category, int value) {
+        MetricsLogger.action(context, category, value);
+    }
+
+    /** @deprecated use {@link #action(int, boolean, Pair[])} */
+    @Deprecated
+    public void action(Context context, int category, boolean value) {
+        MetricsLogger.action(context, category, value);
+    }
+
+    public void action(Context context, int category, String pkg,
+            Pair<Integer, Object>... taggedData) {
+        if (taggedData == null || taggedData.length == 0) {
+            MetricsLogger.action(context, category, pkg);
+        } else {
+            final LogMaker logMaker = new LogMaker(category)
+                    .setType(MetricsProto.MetricsEvent.TYPE_ACTION)
+                    .setPackageName(pkg);
+            for (Pair<Integer, Object> pair : taggedData) {
+                logMaker.addTaggedData(pair.first, pair.second);
+            }
+            MetricsLogger.action(logMaker);
+        }
+    }
+
+    public void count(Context context, String name, int value) {
+        MetricsLogger.count(context, name, value);
+    }
+
+    public void histogram(Context context, String name, int bucket) {
+        MetricsLogger.histogram(context, name, bucket);
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/Instrumentable.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/Instrumentable.java
new file mode 100644
index 0000000..dbc61c2
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/Instrumentable.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.core.instrumentation;
+
+public interface Instrumentable {
+
+    int METRICS_CATEGORY_UNKNOWN = 0;
+
+    /**
+     * Instrumented name for a view as defined in
+     * {@link com.android.internal.logging.nano.MetricsProto.MetricsEvent}.
+     */
+    int getMetricsCategory();
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/LogWriter.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/LogWriter.java
new file mode 100644
index 0000000..4b9f572
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/LogWriter.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settingslib.core.instrumentation;
+
+import android.content.Context;
+import android.util.Pair;
+
+/**
+ * Generic log writer interface.
+ */
+public interface LogWriter {
+
+    /**
+     * Logs a visibility event when view becomes visible.
+     */
+    void visible(Context context, int source, int category);
+
+    /**
+     * Logs a visibility event when view becomes hidden.
+     */
+    void hidden(Context context, int category);
+
+    /**
+     * Logs a user action.
+     */
+    void action(int category, int value, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs a user action.
+     */
+    void action(int category, boolean value, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs an user action.
+     */
+    void actionWithSource(Context context, int source, int category);
+
+    /**
+     * Logs an user action.
+     * @deprecated use {@link #action(int, int, Pair[])}
+     */
+    @Deprecated
+    void action(Context context, int category, int value);
+
+    /**
+     * Logs an user action.
+     * @deprecated use {@link #action(int, boolean, Pair[])}
+     */
+    @Deprecated
+    void action(Context context, int category, boolean value);
+
+    /**
+     * Logs an user action.
+     */
+    void action(Context context, int category, String pkg, Pair<Integer, Object>... taggedData);
+
+    /**
+     * Logs a count.
+     */
+    void count(Context context, String name, int value);
+
+    /**
+     * Logs a histogram event.
+     */
+    void histogram(Context context, String name, int bucket);
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/MetricsFeatureProvider.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/MetricsFeatureProvider.java
new file mode 100644
index 0000000..1e5b378
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/MetricsFeatureProvider.java
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settingslib.core.instrumentation;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.text.TextUtils;
+import android.util.Pair;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * FeatureProvider for metrics.
+ */
+public class MetricsFeatureProvider {
+    private List<LogWriter> mLoggerWriters;
+
+    public MetricsFeatureProvider() {
+        mLoggerWriters = new ArrayList<>();
+        installLogWriters();
+    }
+
+    protected void installLogWriters() {
+        mLoggerWriters.add(new EventLogWriter());
+    }
+
+    public void visible(Context context, int source, int category) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.visible(context, source, category);
+        }
+    }
+
+    public void hidden(Context context, int category) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.hidden(context, category);
+        }
+    }
+
+    public void actionWithSource(Context context, int source, int category) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.actionWithSource(context, source, category);
+        }
+    }
+
+    /**
+     * Logs a user action. Includes the elapsed time since the containing
+     * fragment has been visible.
+     */
+    public void action(VisibilityLoggerMixin visibilityLogger, int category, int value) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(category, value,
+                    sinceVisibleTaggedData(visibilityLogger.elapsedTimeSinceVisible()));
+        }
+    }
+
+    /**
+     * Logs a user action. Includes the elapsed time since the containing
+     * fragment has been visible.
+     */
+    public void action(VisibilityLoggerMixin visibilityLogger, int category, boolean value) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(category, value,
+                    sinceVisibleTaggedData(visibilityLogger.elapsedTimeSinceVisible()));
+        }
+    }
+
+    public void action(Context context, int category, Pair<Integer, Object>... taggedData) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(context, category, taggedData);
+        }
+    }
+
+    /** @deprecated use {@link #action(VisibilityLoggerMixin, int, int)} */
+    @Deprecated
+    public void action(Context context, int category, int value) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(context, category, value);
+        }
+    }
+
+    /** @deprecated use {@link #action(VisibilityLoggerMixin, int, boolean)} */
+    @Deprecated
+    public void action(Context context, int category, boolean value) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(context, category, value);
+        }
+    }
+
+    public void action(Context context, int category, String pkg,
+            Pair<Integer, Object>... taggedData) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.action(context, category, pkg, taggedData);
+        }
+    }
+
+    public void count(Context context, String name, int value) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.count(context, name, value);
+        }
+    }
+
+    public void histogram(Context context, String name, int bucket) {
+        for (LogWriter writer : mLoggerWriters) {
+            writer.histogram(context, name, bucket);
+        }
+    }
+
+    public int getMetricsCategory(Object object) {
+        if (object == null || !(object instanceof Instrumentable)) {
+            return MetricsEvent.VIEW_UNKNOWN;
+        }
+        return ((Instrumentable) object).getMetricsCategory();
+    }
+
+    public void logDashboardStartIntent(Context context, Intent intent,
+            int sourceMetricsCategory) {
+        if (intent == null) {
+            return;
+        }
+        final ComponentName cn = intent.getComponent();
+        if (cn == null) {
+            final String action = intent.getAction();
+            if (TextUtils.isEmpty(action)) {
+                // Not loggable
+                return;
+            }
+            action(context, MetricsEvent.ACTION_SETTINGS_TILE_CLICK, action,
+                    Pair.create(MetricsEvent.FIELD_CONTEXT, sourceMetricsCategory));
+            return;
+        } else if (TextUtils.equals(cn.getPackageName(), context.getPackageName())) {
+            // Going to a Setting internal page, skip click logging in favor of page's own
+            // visibility logging.
+            return;
+        }
+        action(context, MetricsEvent.ACTION_SETTINGS_TILE_CLICK, cn.flattenToString(),
+                Pair.create(MetricsEvent.FIELD_CONTEXT, sourceMetricsCategory));
+    }
+
+    private Pair<Integer, Object> sinceVisibleTaggedData(long timestamp) {
+        return Pair.create(MetricsEvent.NOTIFICATION_SINCE_VISIBLE_MILLIS, timestamp);
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/SharedPreferencesLogger.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/SharedPreferencesLogger.java
new file mode 100644
index 0000000..facce4e
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/SharedPreferencesLogger.java
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.android.settingslib.core.instrumentation;
+
+import android.annotation.Nullable;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
+import android.os.AsyncTask;
+import android.support.annotation.VisibleForTesting;
+import android.text.TextUtils;
+import android.util.Log;
+import android.util.Pair;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+
+import java.util.Map;
+import java.util.Set;
+import java.util.concurrent.ConcurrentSkipListSet;
+
+public class SharedPreferencesLogger implements SharedPreferences {
+
+    private static final String LOG_TAG = "SharedPreferencesLogger";
+
+    private final String mTag;
+    private final Context mContext;
+    private final MetricsFeatureProvider mMetricsFeature;
+    private final Set<String> mPreferenceKeySet;
+
+    public SharedPreferencesLogger(Context context, String tag,
+            MetricsFeatureProvider metricsFeature) {
+        mContext = context;
+        mTag = tag;
+        mMetricsFeature = metricsFeature;
+        mPreferenceKeySet = new ConcurrentSkipListSet<>();
+    }
+
+    @Override
+    public Map<String, ?> getAll() {
+        return null;
+    }
+
+    @Override
+    public String getString(String key, @Nullable String defValue) {
+        return defValue;
+    }
+
+    @Override
+    public Set<String> getStringSet(String key, @Nullable Set<String> defValues) {
+        return defValues;
+    }
+
+    @Override
+    public int getInt(String key, int defValue) {
+        return defValue;
+    }
+
+    @Override
+    public long getLong(String key, long defValue) {
+        return defValue;
+    }
+
+    @Override
+    public float getFloat(String key, float defValue) {
+        return defValue;
+    }
+
+    @Override
+    public boolean getBoolean(String key, boolean defValue) {
+        return defValue;
+    }
+
+    @Override
+    public boolean contains(String key) {
+        return false;
+    }
+
+    @Override
+    public Editor edit() {
+        return new EditorLogger();
+    }
+
+    @Override
+    public void registerOnSharedPreferenceChangeListener(
+            OnSharedPreferenceChangeListener listener) {
+    }
+
+    @Override
+    public void unregisterOnSharedPreferenceChangeListener(
+            OnSharedPreferenceChangeListener listener) {
+    }
+
+    private void logValue(String key, Object value) {
+        logValue(key, value, false /* forceLog */);
+    }
+
+    private void logValue(String key, Object value, boolean forceLog) {
+        final String prefKey = buildPrefKey(mTag, key);
+        if (!forceLog && !mPreferenceKeySet.contains(prefKey)) {
+            // Pref key doesn't exist in set, this is initial display so we skip metrics but
+            // keeps track of this key.
+            mPreferenceKeySet.add(prefKey);
+            return;
+        }
+        // TODO: Remove count logging to save some resource.
+        mMetricsFeature.count(mContext, buildCountName(prefKey, value), 1);
+
+        final Pair<Integer, Object> valueData;
+        if (value instanceof Long) {
+            final Long longVal = (Long) value;
+            final int intVal;
+            if (longVal > Integer.MAX_VALUE) {
+                intVal = Integer.MAX_VALUE;
+            } else if (longVal < Integer.MIN_VALUE) {
+                intVal = Integer.MIN_VALUE;
+            } else {
+                intVal = longVal.intValue();
+            }
+            valueData = Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE,
+                    intVal);
+        } else if (value instanceof Integer) {
+            valueData = Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE,
+                    value);
+        } else if (value instanceof Boolean) {
+            valueData = Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE,
+                    (Boolean) value ? 1 : 0);
+        } else if (value instanceof Float) {
+            valueData = Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_FLOAT_VALUE,
+                    value);
+        } else if (value instanceof String) {
+            Log.d(LOG_TAG, "Tried to log string preference " + prefKey + " = " + value);
+            valueData = null;
+        } else {
+            Log.w(LOG_TAG, "Tried to log unloggable object" + value);
+            valueData = null;
+        }
+        if (valueData != null) {
+            // Pref key exists in set, log it's change in metrics.
+            mMetricsFeature.action(mContext, MetricsEvent.ACTION_SETTINGS_PREFERENCE_CHANGE,
+                    Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_NAME, prefKey),
+                    valueData);
+        }
+    }
+
+    @VisibleForTesting
+    void logPackageName(String key, String value) {
+        final String prefKey = mTag + "/" + key;
+        mMetricsFeature.action(mContext, MetricsEvent.ACTION_SETTINGS_PREFERENCE_CHANGE, value,
+                Pair.create(MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_NAME, prefKey));
+    }
+
+    private void safeLogValue(String key, String value) {
+        new AsyncPackageCheck().executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, key, value);
+    }
+
+    public static String buildCountName(String prefKey, Object value) {
+        return prefKey + "|" + value;
+    }
+
+    public static String buildPrefKey(String tag, String key) {
+        return tag + "/" + key;
+    }
+
+    private class AsyncPackageCheck extends AsyncTask<String, Void, Void> {
+        @Override
+        protected Void doInBackground(String... params) {
+            String key = params[0];
+            String value = params[1];
+            PackageManager pm = mContext.getPackageManager();
+            try {
+                // Check if this might be a component.
+                ComponentName name = ComponentName.unflattenFromString(value);
+                if (value != null) {
+                    value = name.getPackageName();
+                }
+            } catch (Exception e) {
+            }
+            try {
+                pm.getPackageInfo(value, PackageManager.MATCH_ANY_USER);
+                logPackageName(key, value);
+            } catch (PackageManager.NameNotFoundException e) {
+                // Clearly not a package, and it's unlikely this preference is in prefSet, so
+                // lets force log it.
+                logValue(key, value, true /* forceLog */);
+            }
+            return null;
+        }
+    }
+
+    public class EditorLogger implements Editor {
+        @Override
+        public Editor putString(String key, @Nullable String value) {
+            safeLogValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor putStringSet(String key, @Nullable Set<String> values) {
+            safeLogValue(key, TextUtils.join(",", values));
+            return this;
+        }
+
+        @Override
+        public Editor putInt(String key, int value) {
+            logValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor putLong(String key, long value) {
+            logValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor putFloat(String key, float value) {
+            logValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor putBoolean(String key, boolean value) {
+            logValue(key, value);
+            return this;
+        }
+
+        @Override
+        public Editor remove(String key) {
+            return this;
+        }
+
+        @Override
+        public Editor clear() {
+            return this;
+        }
+
+        @Override
+        public boolean commit() {
+            return true;
+        }
+
+        @Override
+        public void apply() {
+        }
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixin.java b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixin.java
new file mode 100644
index 0000000..7983896
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixin.java
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.core.instrumentation;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+
+import android.os.SystemClock;
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnPause;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+import static com.android.settingslib.core.instrumentation.Instrumentable.METRICS_CATEGORY_UNKNOWN;
+
+/**
+ * Logs visibility change of a fragment.
+ */
+public class VisibilityLoggerMixin implements LifecycleObserver, OnResume, OnPause {
+
+    private static final String TAG = "VisibilityLoggerMixin";
+
+    private final int mMetricsCategory;
+
+    private MetricsFeatureProvider mMetricsFeature;
+    private int mSourceMetricsCategory = MetricsProto.MetricsEvent.VIEW_UNKNOWN;
+    private long mVisibleTimestamp;
+
+    /**
+     * The metrics category constant for logging source when a setting fragment is opened.
+     */
+    public static final String EXTRA_SOURCE_METRICS_CATEGORY = ":settings:source_metrics";
+
+    private VisibilityLoggerMixin() {
+        mMetricsCategory = METRICS_CATEGORY_UNKNOWN;
+    }
+
+    public VisibilityLoggerMixin(int metricsCategory, MetricsFeatureProvider metricsFeature) {
+        mMetricsCategory = metricsCategory;
+        mMetricsFeature = metricsFeature;
+    }
+
+    @Override
+    public void onResume() {
+        mVisibleTimestamp = SystemClock.elapsedRealtime();
+        if (mMetricsFeature != null && mMetricsCategory != METRICS_CATEGORY_UNKNOWN) {
+            mMetricsFeature.visible(null /* context */, mSourceMetricsCategory, mMetricsCategory);
+        }
+    }
+
+    @Override
+    public void onPause() {
+        mVisibleTimestamp = 0;
+        if (mMetricsFeature != null && mMetricsCategory != METRICS_CATEGORY_UNKNOWN) {
+            mMetricsFeature.hidden(null /* context */, mMetricsCategory);
+        }
+    }
+
+    /**
+     * Sets source metrics category for this logger. Source is the caller that opened this UI.
+     */
+    public void setSourceMetricsCategory(Activity activity) {
+        if (mSourceMetricsCategory != MetricsProto.MetricsEvent.VIEW_UNKNOWN || activity == null) {
+            return;
+        }
+        final Intent intent = activity.getIntent();
+        if (intent == null) {
+            return;
+        }
+        mSourceMetricsCategory = intent.getIntExtra(EXTRA_SOURCE_METRICS_CATEGORY,
+                MetricsProto.MetricsEvent.VIEW_UNKNOWN);
+    }
+
+    /** Returns elapsed time since onResume() */
+    public long elapsedTimeSinceVisible() {
+        if (mVisibleTimestamp == 0) {
+            return 0;
+        }
+        return SystemClock.elapsedRealtime() - mVisibleTimestamp;
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java b/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java
new file mode 100644
index 0000000..a20f687
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/notification/EnableZenModeDialog.java
@@ -0,0 +1,439 @@
+package com.android.settingslib.notification;
+
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import android.app.ActivityManager;
+import android.app.AlarmManager;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.app.NotificationManager;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.net.Uri;
+import android.provider.Settings;
+import android.service.notification.Condition;
+import android.service.notification.ZenModeConfig;
+import android.text.TextUtils;
+import android.util.Log;
+import android.util.Slog;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.CompoundButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+import android.widget.ScrollView;
+import android.widget.TextView;
+
+import com.android.internal.logging.MetricsLogger;
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.internal.policy.PhoneWindow;
+import com.android.settingslib.R;
+
+import java.util.Arrays;
+import java.util.Calendar;
+import java.util.GregorianCalendar;
+import java.util.Objects;
+
+public class EnableZenModeDialog {
+
+    private static final String TAG = "QSEnableZenModeDialog";
+    private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
+
+    private static final int[] MINUTE_BUCKETS = ZenModeConfig.MINUTE_BUCKETS;
+    private static final int MIN_BUCKET_MINUTES = MINUTE_BUCKETS[0];
+    private static final int MAX_BUCKET_MINUTES = MINUTE_BUCKETS[MINUTE_BUCKETS.length - 1];
+    private static final int DEFAULT_BUCKET_INDEX = Arrays.binarySearch(MINUTE_BUCKETS, 60);
+
+    private static final int FOREVER_CONDITION_INDEX = 0;
+    private static final int COUNTDOWN_CONDITION_INDEX = 1;
+    private static final int COUNTDOWN_ALARM_CONDITION_INDEX = 2;
+
+    private static final int SECONDS_MS = 1000;
+    private static final int MINUTES_MS = 60 * SECONDS_MS;
+
+    private Uri mForeverId;
+    private int mBucketIndex = -1;
+
+    private AlarmManager mAlarmManager;
+    private int mUserId;
+    private boolean mAttached;
+
+    private Context mContext;
+    private RadioGroup mZenRadioGroup;
+    private LinearLayout mZenRadioGroupContent;
+    private int MAX_MANUAL_DND_OPTIONS = 3;
+
+    public EnableZenModeDialog(Context context) {
+        mContext = context;
+    }
+
+    public Dialog createDialog() {
+        NotificationManager noMan = (NotificationManager) mContext.
+                getSystemService(Context.NOTIFICATION_SERVICE);
+        mForeverId =  Condition.newId(mContext).appendPath("forever").build();
+        mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
+        mUserId = mContext.getUserId();
+        mAttached = false;
+
+        final AlertDialog.Builder builder = new AlertDialog.Builder(mContext)
+                .setTitle(R.string.zen_mode_settings_turn_on_dialog_title)
+                .setNegativeButton(R.string.cancel, null)
+                .setPositiveButton(R.string.zen_mode_enable_dialog_turn_on,
+                        new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                int checkedId = mZenRadioGroup.getCheckedRadioButtonId();
+                                ConditionTag tag = getConditionTagAt(checkedId);
+
+                                if (isForever(tag.condition)) {
+                                    MetricsLogger.action(mContext,
+                                            MetricsProto.MetricsEvent.
+                                                    NOTIFICATION_ZEN_MODE_TOGGLE_ON_FOREVER);
+                                } else if (isAlarm(tag.condition)) {
+                                    MetricsLogger.action(mContext,
+                                            MetricsProto.MetricsEvent.
+                                                    NOTIFICATION_ZEN_MODE_TOGGLE_ON_ALARM);
+                                } else if (isCountdown(tag.condition)) {
+                                    MetricsLogger.action(mContext,
+                                            MetricsProto.MetricsEvent.
+                                                    NOTIFICATION_ZEN_MODE_TOGGLE_ON_COUNTDOWN);
+                                } else {
+                                    Slog.d(TAG, "Invalid manual condition: " + tag.condition);
+                                }
+                                // always triggers priority-only dnd with chosen condition
+                                noMan.setZenMode(Settings.Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS,
+                                        getRealConditionId(tag.condition), TAG);
+                            }
+                        });
+
+        View contentView = getContentView();
+        bindConditions(forever());
+        builder.setView(contentView);
+        return builder.create();
+    }
+
+    private void hideAllConditions() {
+        final int N = mZenRadioGroupContent.getChildCount();
+        for (int i = 0; i < N; i++) {
+            mZenRadioGroupContent.getChildAt(i).setVisibility(View.GONE);
+        }
+    }
+
+    protected View getContentView() {
+        final LayoutInflater inflater = new PhoneWindow(mContext).getLayoutInflater();
+        View contentView = inflater.inflate(R.layout.zen_mode_turn_on_dialog_container, null);
+        ScrollView container = (ScrollView) contentView.findViewById(R.id.container);
+
+        mZenRadioGroup = container.findViewById(R.id.zen_radio_buttons);
+        mZenRadioGroupContent = container.findViewById(R.id.zen_radio_buttons_content);
+
+        for (int i = 0; i < MAX_MANUAL_DND_OPTIONS; i++) {
+            final View radioButton = inflater.inflate(R.layout.zen_mode_radio_button,
+                    mZenRadioGroup, false);
+            mZenRadioGroup.addView(radioButton);
+            radioButton.setId(i);
+
+            final View radioButtonContent = inflater.inflate(R.layout.zen_mode_condition,
+                    mZenRadioGroupContent, false);
+            radioButtonContent.setId(i + MAX_MANUAL_DND_OPTIONS);
+            mZenRadioGroupContent.addView(radioButtonContent);
+        }
+        hideAllConditions();
+        return contentView;
+    }
+
+    private void bind(final Condition condition, final View row, final int rowId) {
+        if (condition == null) throw new IllegalArgumentException("condition must not be null");
+        final boolean enabled = condition.state == Condition.STATE_TRUE;
+        final ConditionTag tag = row.getTag() != null ? (ConditionTag) row.getTag() :
+                new ConditionTag();
+        row.setTag(tag);
+        final boolean first = tag.rb == null;
+        if (tag.rb == null) {
+            tag.rb = (RadioButton) mZenRadioGroup.getChildAt(rowId);
+        }
+        tag.condition = condition;
+        final Uri conditionId = getConditionId(tag.condition);
+        if (DEBUG) Log.d(TAG, "bind i=" + mZenRadioGroupContent.indexOfChild(row) + " first="
+                + first + " condition=" + conditionId);
+        tag.rb.setEnabled(enabled);
+        tag.rb.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                if (isChecked) {
+                    tag.rb.setChecked(true);
+                    if (DEBUG) Log.d(TAG, "onCheckedChanged " + conditionId);
+                    MetricsLogger.action(mContext,
+                            MetricsProto.MetricsEvent.QS_DND_CONDITION_SELECT);
+                    announceConditionSelection(tag);
+                }
+            }
+        });
+
+        updateUi(tag, row, condition, enabled, rowId, conditionId);
+        row.setVisibility(View.VISIBLE);
+    }
+
+    private ConditionTag getConditionTagAt(int index) {
+        return (ConditionTag) mZenRadioGroupContent.getChildAt(index).getTag();
+    }
+
+    private void bindConditions(Condition c) {
+        // forever
+        bind(forever(), mZenRadioGroupContent.getChildAt(FOREVER_CONDITION_INDEX),
+                FOREVER_CONDITION_INDEX);
+        if (c == null) {
+            bindGenericCountdown();
+            bindNextAlarm(getTimeUntilNextAlarmCondition());
+        } else if (isForever(c)) {
+            getConditionTagAt(FOREVER_CONDITION_INDEX).rb.setChecked(true);
+            bindGenericCountdown();
+            bindNextAlarm(getTimeUntilNextAlarmCondition());
+        } else {
+            if (isAlarm(c)) {
+                bindGenericCountdown();
+                bindNextAlarm(c);
+                getConditionTagAt(COUNTDOWN_ALARM_CONDITION_INDEX).rb.setChecked(true);
+            } else if (isCountdown(c)) {
+                bindNextAlarm(getTimeUntilNextAlarmCondition());
+                bind(c, mZenRadioGroupContent.getChildAt(COUNTDOWN_CONDITION_INDEX),
+                        COUNTDOWN_CONDITION_INDEX);
+                getConditionTagAt(COUNTDOWN_CONDITION_INDEX).rb.setChecked(true);
+            } else {
+                Slog.d(TAG, "Invalid manual condition: " + c);
+            }
+        }
+    }
+
+    public static Uri getConditionId(Condition condition) {
+        return condition != null ? condition.id : null;
+    }
+
+    public Condition forever() {
+        Uri foreverId = Condition.newId(mContext).appendPath("forever").build();
+        return new Condition(foreverId, foreverSummary(mContext), "", "", 0 /*icon*/,
+                Condition.STATE_TRUE, 0 /*flags*/);
+    }
+
+    public long getNextAlarm() {
+        final AlarmManager.AlarmClockInfo info = mAlarmManager.getNextAlarmClock(mUserId);
+        return info != null ? info.getTriggerTime() : 0;
+    }
+
+    private boolean isAlarm(Condition c) {
+        return c != null && ZenModeConfig.isValidCountdownToAlarmConditionId(c.id);
+    }
+
+    private boolean isCountdown(Condition c) {
+        return c != null && ZenModeConfig.isValidCountdownConditionId(c.id);
+    }
+
+    private boolean isForever(Condition c) {
+        return c != null && mForeverId.equals(c.id);
+    }
+
+    private Uri getRealConditionId(Condition condition) {
+        return isForever(condition) ? null : getConditionId(condition);
+    }
+
+    private String foreverSummary(Context context) {
+        return context.getString(com.android.internal.R.string.zen_mode_forever);
+    }
+
+    private static void setToMidnight(Calendar calendar) {
+        calendar.set(Calendar.HOUR_OF_DAY, 0);
+        calendar.set(Calendar.MINUTE, 0);
+        calendar.set(Calendar.SECOND, 0);
+        calendar.set(Calendar.MILLISECOND, 0);
+    }
+
+    // Returns a time condition if the next alarm is within the next week.
+    private Condition getTimeUntilNextAlarmCondition() {
+        GregorianCalendar weekRange = new GregorianCalendar();
+        setToMidnight(weekRange);
+        weekRange.add(Calendar.DATE, 6);
+        final long nextAlarmMs = getNextAlarm();
+        if (nextAlarmMs > 0) {
+            GregorianCalendar nextAlarm = new GregorianCalendar();
+            nextAlarm.setTimeInMillis(nextAlarmMs);
+            setToMidnight(nextAlarm);
+
+            if (weekRange.compareTo(nextAlarm) >= 0) {
+                return ZenModeConfig.toNextAlarmCondition(mContext, nextAlarmMs,
+                        ActivityManager.getCurrentUser());
+            }
+        }
+        return null;
+    }
+
+    private void bindGenericCountdown() {
+        mBucketIndex = DEFAULT_BUCKET_INDEX;
+        Condition countdown = ZenModeConfig.toTimeCondition(mContext,
+                MINUTE_BUCKETS[mBucketIndex], ActivityManager.getCurrentUser());
+        if (!mAttached || getConditionTagAt(COUNTDOWN_CONDITION_INDEX).condition == null) {
+            bind(countdown, mZenRadioGroupContent.getChildAt(COUNTDOWN_CONDITION_INDEX),
+                    COUNTDOWN_CONDITION_INDEX);
+        }
+    }
+
+    private void updateUi(ConditionTag tag, View row, Condition condition,
+            boolean enabled, int rowId, Uri conditionId) {
+        if (tag.lines == null) {
+            tag.lines = row.findViewById(android.R.id.content);
+        }
+        if (tag.line1 == null) {
+            tag.line1 = (TextView) row.findViewById(android.R.id.text1);
+        }
+
+        if (tag.line2 == null) {
+            tag.line2 = (TextView) row.findViewById(android.R.id.text2);
+        }
+
+        final String line1 = !TextUtils.isEmpty(condition.line1) ? condition.line1
+                : condition.summary;
+        final String line2 = condition.line2;
+        tag.line1.setText(line1);
+        if (TextUtils.isEmpty(line2)) {
+            tag.line2.setVisibility(View.GONE);
+        } else {
+            tag.line2.setVisibility(View.VISIBLE);
+            tag.line2.setText(line2);
+        }
+        tag.lines.setEnabled(enabled);
+        tag.lines.setAlpha(enabled ? 1 : .4f);
+
+        tag.lines.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                tag.rb.setChecked(true);
+            }
+        });
+
+        // minus button
+        final ImageView button1 = (ImageView) row.findViewById(android.R.id.button1);
+        button1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                onClickTimeButton(row, tag, false /*down*/, rowId);
+            }
+        });
+
+        // plus button
+        final ImageView button2 = (ImageView) row.findViewById(android.R.id.button2);
+        button2.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                onClickTimeButton(row, tag, true /*up*/, rowId);
+            }
+        });
+
+        final long time = ZenModeConfig.tryParseCountdownConditionId(conditionId);
+        if (rowId == COUNTDOWN_CONDITION_INDEX && time > 0) {
+            button1.setVisibility(View.VISIBLE);
+            button2.setVisibility(View.VISIBLE);
+            if (mBucketIndex > -1) {
+                button1.setEnabled(mBucketIndex > 0);
+                button2.setEnabled(mBucketIndex < MINUTE_BUCKETS.length - 1);
+            } else {
+                final long span = time - System.currentTimeMillis();
+                button1.setEnabled(span > MIN_BUCKET_MINUTES * MINUTES_MS);
+                final Condition maxCondition = ZenModeConfig.toTimeCondition(mContext,
+                        MAX_BUCKET_MINUTES, ActivityManager.getCurrentUser());
+                button2.setEnabled(!Objects.equals(condition.summary, maxCondition.summary));
+            }
+
+            button1.setAlpha(button1.isEnabled() ? 1f : .5f);
+            button2.setAlpha(button2.isEnabled() ? 1f : .5f);
+        } else {
+            button1.setVisibility(View.GONE);
+            button2.setVisibility(View.GONE);
+        }
+    }
+
+    private void bindNextAlarm(Condition c) {
+        View alarmContent = mZenRadioGroupContent.getChildAt(COUNTDOWN_ALARM_CONDITION_INDEX);
+        ConditionTag tag = (ConditionTag) alarmContent.getTag();
+
+        if (c != null && (!mAttached || tag == null || tag.condition == null)) {
+            bind(c, alarmContent, COUNTDOWN_ALARM_CONDITION_INDEX);
+        }
+
+        // hide the alarm radio button if there isn't a "next alarm condition"
+        tag = (ConditionTag) alarmContent.getTag();
+        boolean showAlarm = tag != null && tag.condition != null;
+        mZenRadioGroup.getChildAt(COUNTDOWN_ALARM_CONDITION_INDEX).setVisibility(
+                showAlarm ? View.VISIBLE : View.GONE);
+        alarmContent.setVisibility(showAlarm ? View.VISIBLE : View.GONE);
+    }
+
+    private void onClickTimeButton(View row, ConditionTag tag, boolean up, int rowId) {
+        MetricsLogger.action(mContext, MetricsProto.MetricsEvent.QS_DND_TIME, up);
+        Condition newCondition = null;
+        final int N = MINUTE_BUCKETS.length;
+        if (mBucketIndex == -1) {
+            // not on a known index, search for the next or prev bucket by time
+            final Uri conditionId = getConditionId(tag.condition);
+            final long time = ZenModeConfig.tryParseCountdownConditionId(conditionId);
+            final long now = System.currentTimeMillis();
+            for (int i = 0; i < N; i++) {
+                int j = up ? i : N - 1 - i;
+                final int bucketMinutes = MINUTE_BUCKETS[j];
+                final long bucketTime = now + bucketMinutes * MINUTES_MS;
+                if (up && bucketTime > time || !up && bucketTime < time) {
+                    mBucketIndex = j;
+                    newCondition = ZenModeConfig.toTimeCondition(mContext,
+                            bucketTime, bucketMinutes, ActivityManager.getCurrentUser(),
+                            false /*shortVersion*/);
+                    break;
+                }
+            }
+            if (newCondition == null) {
+                mBucketIndex = DEFAULT_BUCKET_INDEX;
+                newCondition = ZenModeConfig.toTimeCondition(mContext,
+                        MINUTE_BUCKETS[mBucketIndex], ActivityManager.getCurrentUser());
+            }
+        } else {
+            // on a known index, simply increment or decrement
+            mBucketIndex = Math.max(0, Math.min(N - 1, mBucketIndex + (up ? 1 : -1)));
+            newCondition = ZenModeConfig.toTimeCondition(mContext,
+                    MINUTE_BUCKETS[mBucketIndex], ActivityManager.getCurrentUser());
+        }
+        bind(newCondition, row, rowId);
+        tag.rb.setChecked(true);
+        announceConditionSelection(tag);
+    }
+
+    private void announceConditionSelection(ConditionTag tag) {
+        // condition will always be priority-only
+        String modeText = mContext.getString(R.string.zen_interruption_level_priority);
+        if (tag.line1 != null) {
+            mZenRadioGroupContent.announceForAccessibility(mContext.getString(
+                    R.string.zen_mode_and_condition, modeText, tag.line1.getText()));
+        }
+    }
+
+    // used as the view tag on condition rows
+    private static class ConditionTag {
+        public RadioButton rb;
+        public View lines;
+        public TextView line1;
+        public TextView line2;
+        public Condition condition;
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/wrapper/BluetoothA2dpWrapper.java b/packages/SettingsLib/src/com/android/settingslib/wrapper/BluetoothA2dpWrapper.java
index 4c52a9f..17e3401 100644
--- a/packages/SettingsLib/src/com/android/settingslib/wrapper/BluetoothA2dpWrapper.java
+++ b/packages/SettingsLib/src/com/android/settingslib/wrapper/BluetoothA2dpWrapper.java
@@ -43,8 +43,8 @@
     /**
      * Wraps {@code BluetoothA2dp.getCodecStatus}
      */
-    public BluetoothCodecStatus getCodecStatus() {
-        return mService.getCodecStatus();
+    public BluetoothCodecStatus getCodecStatus(BluetoothDevice device) {
+        return mService.getCodecStatus(device);
     }
 
     /**
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/UtilsTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/UtilsTest.java
index 327c1c8..5459fb7 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/UtilsTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/UtilsTest.java
@@ -84,23 +84,31 @@
                 mContext,
                 Secure.LOCATION_MODE_OFF,
                 Secure.LOCATION_MODE_HIGH_ACCURACY,
-                currentUserId);
+                currentUserId,
+                Settings.Secure.LOCATION_CHANGER_QUICK_SETTINGS);
 
         verify(mContext).sendBroadcastAsUser(
                 argThat(actionMatches(LocationManager.MODE_CHANGING_ACTION)),
                 ArgumentMatchers.eq(UserHandle.of(currentUserId)),
                 ArgumentMatchers.eq(WRITE_SECURE_SETTINGS));
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.LOCATION_CHANGER, Settings.Secure.LOCATION_CHANGER_UNKNOWN))
+                .isEqualTo(Settings.Secure.LOCATION_CHANGER_QUICK_SETTINGS);
     }
 
     @Test
     public void testUpdateLocationEnabled_sendBroadcast() {
         int currentUserId = ActivityManager.getCurrentUser();
-        Utils.updateLocationEnabled(mContext, true, currentUserId);
+        Utils.updateLocationEnabled(mContext, true, currentUserId,
+                Settings.Secure.LOCATION_CHANGER_QUICK_SETTINGS);
 
         verify(mContext).sendBroadcastAsUser(
             argThat(actionMatches(LocationManager.MODE_CHANGING_ACTION)),
             ArgumentMatchers.eq(UserHandle.of(currentUserId)),
             ArgumentMatchers.eq(WRITE_SECURE_SETTINGS));
+        assertThat(Settings.Secure.getInt(mContext.getContentResolver(),
+                Settings.Secure.LOCATION_CHANGER, Settings.Secure.LOCATION_CHANGER_UNKNOWN))
+                .isEqualTo(Settings.Secure.LOCATION_CHANGER_QUICK_SETTINGS);
     }
 
     @Test
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/A2dpProfileTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/A2dpProfileTest.java
index ece0d51..590bc90 100644
--- a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/A2dpProfileTest.java
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/bluetooth/A2dpProfileTest.java
@@ -123,7 +123,7 @@
         when(mBluetoothA2dp.getConnectionState(any())).thenReturn(
                 BluetoothProfile.STATE_CONNECTED);
         BluetoothCodecStatus status = mock(BluetoothCodecStatus.class);
-        when(mBluetoothA2dpWrapper.getCodecStatus()).thenReturn(status);
+        when(mBluetoothA2dpWrapper.getCodecStatus(mDevice)).thenReturn(status);
         BluetoothCodecConfig config = mock(BluetoothCodecConfig.class);
         when(status.getCodecConfig()).thenReturn(config);
         when(config.isMandatoryCodec()).thenReturn(false);
@@ -186,7 +186,7 @@
         BluetoothCodecStatus status = mock(BluetoothCodecStatus.class);
         BluetoothCodecConfig config = mock(BluetoothCodecConfig.class);
         BluetoothCodecConfig[] configs = {config};
-        when(mBluetoothA2dpWrapper.getCodecStatus()).thenReturn(status);
+        when(mBluetoothA2dpWrapper.getCodecStatus(mDevice)).thenReturn(status);
         when(status.getCodecsSelectableCapabilities()).thenReturn(configs);
 
         when(config.isMandatoryCodec()).thenReturn(true);
@@ -201,7 +201,7 @@
         BluetoothCodecStatus status = mock(BluetoothCodecStatus.class);
         BluetoothCodecConfig config = mock(BluetoothCodecConfig.class);
         BluetoothCodecConfig[] configs = {config};
-        when(mBluetoothA2dpWrapper.getCodecStatus()).thenReturn(status);
+        when(mBluetoothA2dpWrapper.getCodecStatus(mDevice)).thenReturn(status);
         when(status.getCodecsSelectableCapabilities()).thenReturn(configs);
 
         when(config.isMandatoryCodec()).thenReturn(false);
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/MetricsFeatureProviderTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/MetricsFeatureProviderTest.java
new file mode 100644
index 0000000..8bea51d
--- /dev/null
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/MetricsFeatureProviderTest.java
@@ -0,0 +1,132 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settingslib.core.instrumentation;
+
+import static com.google.common.truth.Truth.assertThat;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.verifyNoMoreInteractions;
+import static org.mockito.Mockito.when;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Pair;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settingslib.TestConfig;
+import com.android.settingslib.SettingsLibRobolectricTestRunner;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Captor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.util.ReflectionHelpers;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@RunWith(SettingsLibRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class MetricsFeatureProviderTest {
+    private static int CATEGORY = 10;
+    private static boolean SUBTYPE_BOOLEAN = true;
+    private static int SUBTYPE_INTEGER = 1;
+    private static long ELAPSED_TIME = 1000;
+
+    @Mock private LogWriter mockLogWriter;
+    @Mock private VisibilityLoggerMixin mockVisibilityLogger;
+
+    private Context mContext;
+    private MetricsFeatureProvider mProvider;
+
+    @Captor
+    private ArgumentCaptor<Pair> mPairCaptor;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mProvider = new MetricsFeatureProvider();
+        List<LogWriter> writers = new ArrayList<>();
+        writers.add(mockLogWriter);
+        ReflectionHelpers.setField(mProvider, "mLoggerWriters", writers);
+
+        when(mockVisibilityLogger.elapsedTimeSinceVisible()).thenReturn(ELAPSED_TIME);
+    }
+
+    @Test
+    public void logDashboardStartIntent_intentEmpty_shouldNotLog() {
+        mProvider.logDashboardStartIntent(mContext, null /* intent */,
+                MetricsEvent.SETTINGS_GESTURES);
+
+        verifyNoMoreInteractions(mockLogWriter);
+    }
+
+    @Test
+    public void logDashboardStartIntent_intentHasNoComponent_shouldLog() {
+        final Intent intent = new Intent(Intent.ACTION_ASSIST);
+
+        mProvider.logDashboardStartIntent(mContext, intent, MetricsEvent.SETTINGS_GESTURES);
+
+        verify(mockLogWriter).action(
+                eq(mContext),
+                eq(MetricsEvent.ACTION_SETTINGS_TILE_CLICK),
+                anyString(),
+                eq(Pair.create(MetricsEvent.FIELD_CONTEXT, MetricsEvent.SETTINGS_GESTURES)));
+    }
+
+    @Test
+    public void logDashboardStartIntent_intentIsExternal_shouldLog() {
+        final Intent intent = new Intent().setComponent(new ComponentName("pkg", "cls"));
+
+        mProvider.logDashboardStartIntent(mContext, intent, MetricsEvent.SETTINGS_GESTURES);
+
+        verify(mockLogWriter).action(
+                eq(mContext),
+                eq(MetricsEvent.ACTION_SETTINGS_TILE_CLICK),
+                anyString(),
+                eq(Pair.create(MetricsEvent.FIELD_CONTEXT, MetricsEvent.SETTINGS_GESTURES)));
+    }
+
+    @Test
+    public void action_BooleanLogsElapsedTime() {
+        mProvider.action(mockVisibilityLogger, CATEGORY, SUBTYPE_BOOLEAN);
+        verify(mockLogWriter).action(eq(CATEGORY), eq(SUBTYPE_BOOLEAN), mPairCaptor.capture());
+
+        Pair value = mPairCaptor.getValue();
+        assertThat(value.first instanceof Integer).isTrue();
+        assertThat((int) value.first).isEqualTo(MetricsEvent.NOTIFICATION_SINCE_VISIBLE_MILLIS);
+        assertThat(value.second).isEqualTo(ELAPSED_TIME);
+    }
+
+    @Test
+    public void action_IntegerLogsElapsedTime() {
+        mProvider.action(mockVisibilityLogger, CATEGORY, SUBTYPE_INTEGER);
+        verify(mockLogWriter).action(eq(CATEGORY), eq(SUBTYPE_INTEGER), mPairCaptor.capture());
+
+        Pair value = mPairCaptor.getValue();
+        assertThat(value.first instanceof Integer).isTrue();
+        assertThat((int) value.first).isEqualTo(MetricsEvent.NOTIFICATION_SINCE_VISIBLE_MILLIS);
+        assertThat(value.second).isEqualTo(ELAPSED_TIME);
+    }
+}
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/SharedPreferenceLoggerTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/SharedPreferenceLoggerTest.java
new file mode 100644
index 0000000..d558a64
--- /dev/null
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/SharedPreferenceLoggerTest.java
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settingslib.core.instrumentation;
+
+import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.ACTION_SETTINGS_PREFERENCE_CHANGE;
+import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_FLOAT_VALUE;
+import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE;
+import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.FIELD_SETTINGS_PREFERENCE_CHANGE_NAME;
+import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.argThat;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.util.Pair;
+
+import com.android.settingslib.TestConfig;
+import com.android.settingslib.SettingsLibRobolectricTestRunner;
+
+import com.google.common.truth.Platform;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Answers;
+import org.mockito.ArgumentMatcher;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+
+@RunWith(SettingsLibRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class SharedPreferenceLoggerTest {
+
+    private static final String TEST_TAG = "tag";
+    private static final String TEST_KEY = "key";
+
+    @Mock(answer = Answers.RETURNS_DEEP_STUBS)
+    private Context mContext;
+
+    private ArgumentMatcher<Pair<Integer, Object>> mNamePairMatcher;
+    @Mock
+    private MetricsFeatureProvider mMetricsFeature;
+    private SharedPreferencesLogger mSharedPrefLogger;
+
+    @Before
+    public void init() {
+        MockitoAnnotations.initMocks(this);
+        mSharedPrefLogger = new SharedPreferencesLogger(mContext, TEST_TAG, mMetricsFeature);
+        mNamePairMatcher = pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_NAME, String.class);
+    }
+
+    @Test
+    public void putInt_shouldNotLogInitialPut() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        editor.putInt(TEST_KEY, 1);
+        editor.putInt(TEST_KEY, 1);
+        editor.putInt(TEST_KEY, 1);
+        editor.putInt(TEST_KEY, 2);
+        editor.putInt(TEST_KEY, 2);
+        editor.putInt(TEST_KEY, 2);
+        editor.putInt(TEST_KEY, 2);
+
+        verify(mMetricsFeature, times(6)).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, Integer.class)));
+    }
+
+    @Test
+    public void putBoolean_shouldNotLogInitialPut() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        editor.putBoolean(TEST_KEY, true);
+        editor.putBoolean(TEST_KEY, true);
+        editor.putBoolean(TEST_KEY, false);
+        editor.putBoolean(TEST_KEY, false);
+        editor.putBoolean(TEST_KEY, false);
+
+
+        verify(mMetricsFeature).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, true)));
+        verify(mMetricsFeature, times(3)).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, false)));
+    }
+
+    @Test
+    public void putLong_shouldNotLogInitialPut() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, 2);
+
+        verify(mMetricsFeature, times(4)).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, Integer.class)));
+    }
+
+    @Test
+    public void putLong_biggerThanIntMax_shouldLogIntMax() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        final long veryBigNumber = 500L + Integer.MAX_VALUE;
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, veryBigNumber);
+
+        verify(mMetricsFeature).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(
+                        FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, Integer.MAX_VALUE)));
+    }
+
+    @Test
+    public void putLong_smallerThanIntMin_shouldLogIntMin() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        final long veryNegativeNumber = -500L + Integer.MIN_VALUE;
+        editor.putLong(TEST_KEY, 1);
+        editor.putLong(TEST_KEY, veryNegativeNumber);
+
+        verify(mMetricsFeature).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(
+                        FIELD_SETTINGS_PREFERENCE_CHANGE_INT_VALUE, Integer.MIN_VALUE)));
+    }
+
+    @Test
+    public void putFloat_shouldNotLogInitialPut() {
+        final SharedPreferences.Editor editor = mSharedPrefLogger.edit();
+        editor.putFloat(TEST_KEY, 1);
+        editor.putFloat(TEST_KEY, 1);
+        editor.putFloat(TEST_KEY, 1);
+        editor.putFloat(TEST_KEY, 1);
+        editor.putFloat(TEST_KEY, 2);
+
+        verify(mMetricsFeature, times(4)).action(any(Context.class), anyInt(),
+                argThat(mNamePairMatcher),
+                argThat(pairMatches(FIELD_SETTINGS_PREFERENCE_CHANGE_FLOAT_VALUE, Float.class)));
+    }
+
+    @Test
+    public void logPackage_shouldUseLogPackageApi() {
+        mSharedPrefLogger.logPackageName("key", "com.android.settings");
+        verify(mMetricsFeature).action(any(Context.class),
+                eq(ACTION_SETTINGS_PREFERENCE_CHANGE),
+                eq("com.android.settings"),
+                any(Pair.class));
+    }
+
+    private ArgumentMatcher<Pair<Integer, Object>> pairMatches(int tag, Class clazz) {
+        return pair -> pair.first == tag && Platform.isInstanceOfType(pair.second, clazz);
+    }
+
+    private ArgumentMatcher<Pair<Integer, Object>> pairMatches(int tag, boolean bool) {
+        return pair -> pair.first == tag
+                && Platform.isInstanceOfType(pair.second, Integer.class)
+                && pair.second.equals((bool ? 1 : 0));
+    }
+
+    private ArgumentMatcher<Pair<Integer, Object>> pairMatches(int tag, int val) {
+        return pair -> pair.first == tag
+                && Platform.isInstanceOfType(pair.second, Integer.class)
+                && pair.second.equals(val);
+    }
+}
diff --git a/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixinTest.java b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixinTest.java
new file mode 100644
index 0000000..a264886
--- /dev/null
+++ b/packages/SettingsLib/tests/robotests/src/com/android/settingslib/core/instrumentation/VisibilityLoggerMixinTest.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.settingslib.core.instrumentation;
+
+import static com.android.settingslib.core.instrumentation.Instrumentable.METRICS_CATEGORY_UNKNOWN;
+
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Matchers.anyInt;
+import static org.mockito.Matchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settingslib.SettingsLibRobolectricTestRunner;
+import com.android.settingslib.TestConfig;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.annotation.Config;
+
+
+@RunWith(SettingsLibRobolectricTestRunner.class)
+@Config(manifest = TestConfig.MANIFEST_PATH, sdk = TestConfig.SDK_VERSION)
+public class VisibilityLoggerMixinTest {
+
+    @Mock
+    private MetricsFeatureProvider mMetricsFeature;
+
+    private VisibilityLoggerMixin mMixin;
+
+    @Before
+    public void init() {
+        MockitoAnnotations.initMocks(this);
+        mMixin = new VisibilityLoggerMixin(TestInstrumentable.TEST_METRIC, mMetricsFeature);
+    }
+
+    @Test
+    public void shouldLogVisibleOnResume() {
+        mMixin.onResume();
+
+        verify(mMetricsFeature, times(1))
+                .visible(nullable(Context.class), eq(MetricsProto.MetricsEvent.VIEW_UNKNOWN),
+                        eq(TestInstrumentable.TEST_METRIC));
+    }
+
+    @Test
+    public void shouldLogVisibleWithSource() {
+        final Intent sourceIntent = new Intent()
+                .putExtra(VisibilityLoggerMixin.EXTRA_SOURCE_METRICS_CATEGORY,
+                        MetricsProto.MetricsEvent.SETTINGS_GESTURES);
+        final Activity activity = mock(Activity.class);
+        when(activity.getIntent()).thenReturn(sourceIntent);
+        mMixin.setSourceMetricsCategory(activity);
+        mMixin.onResume();
+
+        verify(mMetricsFeature, times(1))
+                .visible(nullable(Context.class), eq(MetricsProto.MetricsEvent.SETTINGS_GESTURES),
+                        eq(TestInstrumentable.TEST_METRIC));
+    }
+
+    @Test
+    public void shouldLogHideOnPause() {
+        mMixin.onPause();
+
+        verify(mMetricsFeature, times(1))
+                .hidden(nullable(Context.class), eq(TestInstrumentable.TEST_METRIC));
+    }
+
+    @Test
+    public void shouldNotLogIfMetricsFeatureIsNull() {
+        mMixin = new VisibilityLoggerMixin(TestInstrumentable.TEST_METRIC, null);
+        mMixin.onResume();
+        mMixin.onPause();
+
+        verify(mMetricsFeature, never())
+                .hidden(nullable(Context.class), anyInt());
+    }
+
+    @Test
+    public void shouldNotLogIfMetricsCategoryIsUnknown() {
+        mMixin = new VisibilityLoggerMixin(METRICS_CATEGORY_UNKNOWN, mMetricsFeature);
+
+        mMixin.onResume();
+        mMixin.onPause();
+
+        verify(mMetricsFeature, never())
+                .hidden(nullable(Context.class), anyInt());
+    }
+
+    private final class TestInstrumentable implements Instrumentable {
+
+        public static final int TEST_METRIC = 12345;
+
+        @Override
+        public int getMetricsCategory() {
+            return TEST_METRIC;
+        }
+    }
+}
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsHelper.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsHelper.java
index cfd33a1..91957e1 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsHelper.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsHelper.java
@@ -30,6 +30,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Configuration;
+import android.hardware.display.DisplayManager;
 import android.icu.util.ULocale;
 import android.location.LocationManager;
 import android.media.AudioManager;
@@ -306,15 +307,7 @@
     }
 
     private void setBrightness(int brightness) {
-        try {
-            IPowerManager power = IPowerManager.Stub.asInterface(
-                    ServiceManager.getService("power"));
-            if (power != null) {
-                power.setTemporaryScreenBrightnessSettingOverride(brightness);
-            }
-        } catch (RemoteException doe) {
-
-        }
+        mContext.getSystemService(DisplayManager.class).setTemporaryBrightness(brightness);
     }
 
     /* package */ byte[] getLocaleData() {
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
index 55f7a0a..6970c86 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProtoDumpUtil.java
@@ -19,6 +19,7 @@
 import android.annotation.NonNull;
 import android.os.UserHandle;
 import android.provider.Settings;
+import android.provider.Settings.Global;
 import android.providers.settings.GlobalSettingsProto;
 import android.providers.settings.SecureSettingsProto;
 import android.providers.settings.SettingProto;
@@ -1120,8 +1121,8 @@
                 Settings.Global.NOTIFICATION_SNOOZE_OPTIONS,
                 GlobalSettingsProto.NOTIFICATION_SNOOZE_OPTIONS);
         dumpSetting(s, p,
-                    Settings.Global.ZRAM_ENABLED,
-                    GlobalSettingsProto.ZRAM_ENABLED);
+                Settings.Global.ZRAM_ENABLED,
+                GlobalSettingsProto.ZRAM_ENABLED);
         dumpSetting(s, p,
                 Settings.Global.ENABLE_SMART_REPLIES_IN_NOTIFICATIONS,
                 GlobalSettingsProto.ENABLE_SMART_REPLIES_IN_NOTIFICATIONS);
@@ -1129,8 +1130,20 @@
                 Settings.Global.SHOW_FIRST_CRASH_DIALOG,
                 GlobalSettingsProto.SHOW_FIRST_CRASH_DIALOG);
         dumpSetting(s, p,
-                    Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
-                    GlobalSettingsProto.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED);
+                Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
+                GlobalSettingsProto.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED);
+        dumpSetting(s, p,
+                Settings.Global.SHOW_RESTART_IN_CRASH_DIALOG,
+                GlobalSettingsProto.SHOW_RESTART_IN_CRASH_DIALOG);
+        dumpSetting(s, p,
+                Settings.Global.SHOW_MUTE_IN_CRASH_DIALOG,
+                GlobalSettingsProto.SHOW_MUTE_IN_CRASH_DIALOG);
+        dumpSetting(s, p,
+                Settings.Global.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED,
+                GlobalSettingsProto.WIFI_CONNECTED_MAC_RANDOMIZATION_ENABLED);
+        dumpSetting(s, p,
+                Global.CHAINED_BATTERY_ATTRIBUTION_ENABLED,
+                GlobalSettingsProto.CHAINED_BATTERY_ATTRIBUTION_ENABLED);
     }
 
     /** Dump a single {@link SettingsState.Setting} to a proto buf */
@@ -1755,6 +1768,9 @@
         dumpSetting(s, p,
                 Settings.Secure.BACKUP_MANAGER_CONSTANTS,
                 SecureSettingsProto.BACKUP_MANAGER_CONSTANTS);
+        dumpSetting(s, p,
+                Settings.Secure.BLUETOOTH_ON_WHILE_DRIVING,
+                SecureSettingsProto.BLUETOOTH_ON_WHILE_DRIVING);
     }
 
     private static void dumpProtoSystemSettingsLocked(
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 5435e11..b7d6da4 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -1647,6 +1647,15 @@
                 restriction = UserManager.DISALLOW_AIRPLANE_MODE;
                 break;
 
+            case Settings.Secure.DOZE_ENABLED:
+            case Settings.Secure.DOZE_ALWAYS_ON:
+            case Settings.Secure.DOZE_PULSE_ON_PICK_UP:
+            case Settings.Secure.DOZE_PULSE_ON_LONG_PRESS:
+            case Settings.Secure.DOZE_PULSE_ON_DOUBLE_TAP:
+                if ("0".equals(value)) return false;
+                restriction = UserManager.DISALLOW_AMBIENT_DISPLAY;
+                break;
+
             default:
                 if (setting != null && setting.startsWith(Settings.Global.DATA_ROAMING)) {
                     if ("0".equals(value)) return false;
diff --git a/packages/Shell/AndroidManifest.xml b/packages/Shell/AndroidManifest.xml
index 64b2ae6..79299aa 100644
--- a/packages/Shell/AndroidManifest.xml
+++ b/packages/Shell/AndroidManifest.xml
@@ -44,6 +44,7 @@
     <uses-permission android:name="android.permission.MANAGE_NETWORK_POLICY" />
     <uses-permission android:name="android.permission.MANAGE_USB" />
     <uses-permission android:name="android.permission.USE_RESERVED_DISK" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <!-- System tool permissions granted to the shell. -->
     <uses-permission android:name="android.permission.REAL_GET_TASKS" />
     <uses-permission android:name="android.permission.CHANGE_CONFIGURATION" />
diff --git a/packages/SystemUI/AndroidManifest.xml b/packages/SystemUI/AndroidManifest.xml
index 0b6e11b..1fc36be 100644
--- a/packages/SystemUI/AndroidManifest.xml
+++ b/packages/SystemUI/AndroidManifest.xml
@@ -72,6 +72,7 @@
     <uses-permission android:name="android.permission.PEERS_MAC_ADDRESS"/>
     <!-- Physical hardware -->
     <uses-permission android:name="android.permission.MANAGE_USB" />
+    <uses-permission android:name="android.permission.CONTROL_DISPLAY_BRIGHTNESS" />
     <uses-permission android:name="android.permission.DEVICE_POWER" />
     <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
     <uses-permission android:name="android.permission.MASTER_CLEAR" />
@@ -199,6 +200,9 @@
     <!-- to access instant apps -->
     <uses-permission android:name="android.permission.ACCESS_INSTANT_APPS" />
 
+    <!-- to control remote app transitions -->
+    <uses-permission android:name="android.permission.CONTROL_REMOTE_APP_TRANSITION_ANIMATIONS" />
+
     <!-- to change themes - light or dark -->
     <uses-permission android:name="android.permission.CHANGE_OVERLAY_PACKAGES" />
 
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/VolumeDialogController.java b/packages/SystemUI/plugin/src/com/android/systemui/plugins/VolumeDialogController.java
index 903ff72..32eb5d5 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/VolumeDialogController.java
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/VolumeDialogController.java
@@ -172,5 +172,6 @@
         void onScreenOff();
         void onShowSafetyWarning(int flags);
         void onAccessibilityModeChanged(Boolean showA11yStream);
+        void onConnectedDeviceChanged(String deviceName);
     }
 }
diff --git a/packages/SystemUI/plugin/src/com/android/systemui/plugins/qs/QS.java b/packages/SystemUI/plugin/src/com/android/systemui/plugins/qs/QS.java
index a648345e..30d1352 100644
--- a/packages/SystemUI/plugin/src/com/android/systemui/plugins/qs/QS.java
+++ b/packages/SystemUI/plugin/src/com/android/systemui/plugins/qs/QS.java
@@ -14,6 +14,7 @@
 
 package com.android.systemui.plugins.qs;
 
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
@@ -65,6 +66,18 @@
     default void setHasNotifications(boolean hasNotifications) {
     }
 
+    /**
+     * We need this to handle nested scrolling for QS..
+     * Normally we would do this with requestDisallowInterceptTouchEvent, but when both the
+     * scroll containers are using the same touch slop, they try to start scrolling at the
+     * same time and NotificationPanelView wins, this lets QS win.
+     *
+     * TODO: Do this using NestedScroll capabilities.
+     */
+    default boolean onInterceptTouchEvent(MotionEvent event) {
+        return isCustomizing();
+    }
+
     @ProvidesInterface(version = HeightListener.VERSION)
     interface HeightListener {
         int VERSION = 1;
diff --git a/packages/SystemUI/res/drawable/ic_chevron_up.xml b/packages/SystemUI/res/drawable/ic_chevron_up.xml
new file mode 100644
index 0000000..835d0ad
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_chevron_up.xml
@@ -0,0 +1,24 @@
+<!--
+  ~ Copyright (C) 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:fillColor="@android:color/white"
+        android:pathData="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"/>
+</vector>
diff --git a/packages/SystemUI/res/drawable/ic_swap.xml b/packages/SystemUI/res/drawable/ic_swap.xml
new file mode 100644
index 0000000..30da2a9
--- /dev/null
+++ b/packages/SystemUI/res/drawable/ic_swap.xml
@@ -0,0 +1,25 @@
+<!--
+    Copyright (C) 2018 The Android Open Source Project
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+-->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0"
+        android:tint="?android:attr/colorForeground">
+    <path
+        android:pathData="M6.99,11L3,15l3.99,4v-3H14v-2H6.99v-3zM21,9l-3.99,-4v3H10v2h7.01v3L21,9z"
+        android:fillColor="#FFFFFF"/>
+</vector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/fingerprint_dialog.xml b/packages/SystemUI/res/layout/fingerprint_dialog.xml
index e5f62b3..161f13f 100644
--- a/packages/SystemUI/res/layout/fingerprint_dialog.xml
+++ b/packages/SystemUI/res/layout/fingerprint_dialog.xml
@@ -99,6 +99,7 @@
             android:layout_height="@dimen/fingerprint_dialog_fp_icon_size"
             android:layout_gravity="center_horizontal"
             android:scaleType="centerInside"
+            android:contentDescription="@string/accessibility_fingerprint_dialog_fingerprint_icon"
             android:src="@drawable/fingerprint_icon"/>
 
         <TextView
@@ -112,6 +113,8 @@
             android:textSize="12sp"
             android:visibility="invisible"
             android:gravity="center_horizontal"
+            android:accessibilityLiveRegion="polite"
+            android:contentDescription="@string/accessibility_fingerprint_dialog_help_area"
             android:textColor="@color/fingerprint_error_message_color"/>
 
         <LinearLayout android:id="@+id/buttonPanel"
diff --git a/packages/SystemUI/res/layout/quick_qs_status_icons.xml b/packages/SystemUI/res/layout/quick_qs_status_icons.xml
index e0f0ed9..cd3271f 100644
--- a/packages/SystemUI/res/layout/quick_qs_status_icons.xml
+++ b/packages/SystemUI/res/layout/quick_qs_status_icons.xml
@@ -13,13 +13,25 @@
      See the License for the specific language governing permissions and
      limitations under the License.
 -->
-<View
+<LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@+id/quick_qs_status_icons"
     android:layout_width="match_parent"
     android:layout_height="20dp"
-    android:layout_marginBottom="22dp"
+    android:layout_marginTop="8dp"
+    android:layout_marginBottom="14dp"
     android:layout_below="@id/quick_status_bar_system_icons"
     >
 
-</View>
+    <com.android.systemui.statusbar.phone.StatusIconContainer
+        android:id="@+id/statusIcons"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1" />
+
+    <include layout="@layout/signal_cluster_view"
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:layout_marginStart="@dimen/signal_cluster_margin_start" />
+
+</LinearLayout>
diff --git a/packages/SystemUI/res/layout/recents_swipe_up_onboarding.xml b/packages/SystemUI/res/layout/recents_swipe_up_onboarding.xml
new file mode 100644
index 0000000..b3d5c90
--- /dev/null
+++ b/packages/SystemUI/res/layout/recents_swipe_up_onboarding.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2018 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_height="48dp"
+    android:layout_width="match_parent"
+    android:background="@android:color/black"
+    android:layout_gravity="center">
+    <View
+        android:layout_width="match_parent"
+        android:layout_height="1dp"
+        android:background="?android:attr/listDivider"
+        android:gravity="top"/>
+    <TextView
+        android:id="@+id/onboarding_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:text="@string/recents_swipe_up_onboarding"
+        android:textColor="@android:color/white"
+        android:textSize="16sp"
+        android:drawableBottom="@drawable/ic_chevron_up"/>
+    <ImageView
+        android:id="@+id/dismiss"
+        android:layout_width="48dp"
+        android:layout_height="48dp"
+        android:padding="12dp"
+        android:layout_marginEnd="6dp"
+        android:src="@drawable/ic_close_white"
+        android:background="?android:attr/selectableItemBackgroundBorderless"
+        android:layout_gravity="center_vertical|end"/>
+</FrameLayout>
\ No newline at end of file
diff --git a/packages/SystemUI/res/layout/volume_dialog_row.xml b/packages/SystemUI/res/layout/volume_dialog_row.xml
index 3590b76..1d1f95b 100644
--- a/packages/SystemUI/res/layout/volume_dialog_row.xml
+++ b/packages/SystemUI/res/layout/volume_dialog_row.xml
@@ -38,23 +38,34 @@
             android:maxLines="1"
             android:textColor="?android:attr/colorControlNormal"
             android:textAppearance="?android:attr/textAppearanceSmall" />
-        <TextView
-            android:id="@+id/volume_row_connected_device"
-            android:visibility="gone"
+        <LinearLayout
+            android:id="@+id/output_chooser"
+            android:orientation="vertical"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:ellipsize="end"
-            android:maxLines="1"
-            android:textAppearance="@style/TextAppearance.QS.DetailItemSecondary" />
-        <com.android.keyguard.AlphaOptimizedImageButton
-            android:id="@+id/output_chooser"
-            style="@style/VolumeButtons"
+            android:minWidth="48dp"
+            android:minHeight="48dp"
+            android:paddingTop="10dp"
             android:background="?android:selectableItemBackgroundBorderless"
-            android:layout_width="@dimen/volume_button_size"
-            android:layout_height="wrap_content"
-            android:layout_centerVertical="true"
-            android:src="@drawable/ic_volume_expand_animation"
-            android:soundEffectsEnabled="false" />
+            android:gravity="center">
+            <TextView
+                android:id="@+id/volume_row_connected_device"
+                android:visibility="gone"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:ellipsize="end"
+                android:maxLines="1"
+                android:textAppearance="@style/TextAppearance.QS.DetailItemSecondary" />
+            <com.android.keyguard.AlphaOptimizedImageButton
+                android:id="@+id/output_chooser_button"
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:background="?android:selectableItemBackgroundBorderless"
+                style="@style/VolumeButtons"
+                android:layout_centerVertical="true"
+                android:src="@drawable/ic_swap"
+                android:soundEffectsEnabled="false" />
+        </LinearLayout>
     </LinearLayout>
     <FrameLayout
         android:id="@+id/volume_row_slider_frame"
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index a3b58cd..d58c725 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -336,6 +336,8 @@
     <dimen name="qs_footer_padding_end">24dp</dimen>
     <dimen name="qs_footer_icon_size">16dp</dimen>
 
+    <dimen name="qs_notif_collapsed_space">64dp</dimen>
+
     <!-- Desired qs icon overlay size. -->
     <dimen name="qs_detail_icon_overlay_size">24dp</dimen>
 
@@ -875,7 +877,7 @@
     <dimen name="rounded_corner_radius">0dp</dimen>
     <dimen name="rounded_corner_content_padding">0dp</dimen>
     <dimen name="nav_content_padding">0dp</dimen>
-    <dimen name="nav_quick_scrub_track_edge_padding">32dp</dimen>
+    <dimen name="nav_quick_scrub_track_edge_padding">42dp</dimen>
     <dimen name="nav_quick_scrub_track_thickness">2dp</dimen>
 
     <!-- Intended corner radius when drawing the mobile signal -->
diff --git a/packages/SystemUI/res/values/donottranslate.xml b/packages/SystemUI/res/values/donottranslate.xml
index 351a1fd..38f469e 100644
--- a/packages/SystemUI/res/values/donottranslate.xml
+++ b/packages/SystemUI/res/values/donottranslate.xml
@@ -20,4 +20,6 @@
     <!-- Date format for display: should match the lockscreen in /policy.  -->
     <string name="system_ui_date_pattern">@*android:string/system_ui_date_pattern</string>
 
+    <!-- Date format for the always on display.  -->
+    <item type="string" name="system_ui_aod_date_pattern">eeeMMMd</item>
 </resources>
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 7dc4587..6d61a0c 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -259,6 +259,13 @@
     <!-- Button name for "Cancel". [CHAR LIMIT=NONE] -->
     <string name="cancel">Cancel</string>
 
+    <!-- Content description of the fingerprint icon when the system-provided fingerprint dialog is showing, for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_fingerprint_dialog_fingerprint_icon">Fingerprint icon</string>
+    <!-- Content description of the application icon when the system-provided fingerprint dialog is showing, for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_fingerprint_dialog_app_icon">Application icon</string>
+    <!-- Content description for the error/help message are when the system-provided fingerprint dialog is showing, for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
+    <string name="accessibility_fingerprint_dialog_help_area">Help message area</string>
+
     <!-- Content description of the compatibility zoom button for accessibility (not shown on the screen). [CHAR LIMIT=NONE] -->
     <string name="accessibility_compatibility_zoom_button">Compatibility zoom button.</string>
 
@@ -831,6 +838,8 @@
     <string name="recents_stack_action_button_label">Clear all</string>
     <!-- Recents: Hint text that shows on the drop targets to start multiwindow. [CHAR LIMIT=NONE] -->
     <string name="recents_drag_hint_message">Drag here to use split screen</string>
+    <!-- Recents: Text that shows above the nav bar after launching a few apps. [CHAR LIMIT=NONE] -->
+    <string name="recents_swipe_up_onboarding">Swipe up to switch apps</string>
 
     <!-- Recents: MultiStack add stack split horizontal radio button. [CHAR LIMIT=NONE] -->
     <string name="recents_multistack_add_stack_dialog_split_horizontal">Split Horizontal</string>
@@ -1497,6 +1506,10 @@
     <string name="notification_channel_disabled">You won\'t see these notifications anymore</string>
 
     <!-- Notification Inline controls: continue receiving notifications prompt, channel level -->
+    <string name="inline_blocking_helper">You usually dismiss these notifications.
+    \nKeep showing them?</string>
+
+    <!-- Notification Inline controls: continue receiving notifications prompt, channel level -->
     <string name="inline_keep_showing">Keep showing these notifications?</string>
 
     <!-- Notification inline controls: block notifications button -->
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index bcce6d1..2497d20 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -306,6 +306,7 @@
         <item name="darkIconTheme">@style/DualToneDarkTheme</item>
         <item name="wallpaperTextColor">@*android:color/primary_text_material_dark</item>
         <item name="wallpaperTextColorSecondary">@*android:color/secondary_text_material_dark</item>
+        <item name="android:colorError">@*android:color/error_color_material_dark</item>
         <item name="android:colorControlHighlight">@*android:color/primary_text_material_dark</item>
         <item name="*android:lockPatternStyle">@style/LockPatternStyle</item>
         <item name="passwordStyle">@style/PasswordTheme</item>
@@ -317,6 +318,7 @@
     <style name="Theme.SystemUI.Light" parent="@*android:style/Theme.DeviceDefault.QuickSettings">
         <item name="wallpaperTextColor">@*android:color/primary_text_material_light</item>
         <item name="wallpaperTextColorSecondary">@*android:color/secondary_text_material_light</item>
+        <item name="android:colorError">@*android:color/error_color_material_light</item>
         <item name="android:colorControlHighlight">@*android:color/primary_text_material_light</item>
         <item name="passwordStyle">@style/PasswordTheme.Light</item>
     </style>
diff --git a/packages/SystemUI/shared/src/com/android/systemui/shared/system/ActivityManagerWrapper.java b/packages/SystemUI/shared/src/com/android/systemui/shared/system/ActivityManagerWrapper.java
index 1c99d38..c9a6ea9 100644
--- a/packages/SystemUI/shared/src/com/android/systemui/shared/system/ActivityManagerWrapper.java
+++ b/packages/SystemUI/shared/src/com/android/systemui/shared/system/ActivityManagerWrapper.java
@@ -30,6 +30,7 @@
 import android.app.ActivityOptions;
 import android.app.AppGlobals;
 import android.app.IAssistDataReceiver;
+import android.app.WindowConfiguration.ActivityType;
 import android.content.Context;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
@@ -96,11 +97,14 @@
      * @return the top running task (can be {@code null}).
      */
     public ActivityManager.RunningTaskInfo getRunningTask() {
+        return getRunningTask(ACTIVITY_TYPE_RECENTS /* ignoreActivityType */);
+    }
+
+    public ActivityManager.RunningTaskInfo getRunningTask(@ActivityType int ignoreActivityType) {
         // Note: The set of running tasks from the system is ordered by recency
         try {
             List<ActivityManager.RunningTaskInfo> tasks =
-                    ActivityManager.getService().getFilteredTasks(1,
-                            ACTIVITY_TYPE_RECENTS /* ignoreActivityType */,
+                    ActivityManager.getService().getFilteredTasks(1, ignoreActivityType,
                             WINDOWING_MODE_PINNED /* ignoreWindowingMode */);
             if (tasks.isEmpty()) {
                 return null;
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
index 9ff6815..cb732c4 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardSliceView.java
@@ -51,6 +51,8 @@
 import androidx.app.slice.Slice;
 import androidx.app.slice.SliceItem;
 import androidx.app.slice.core.SliceQuery;
+import androidx.app.slice.widget.ListContent;
+import androidx.app.slice.widget.RowContent;
 import androidx.app.slice.widget.SliceLiveData;
 
 /**
@@ -115,25 +117,17 @@
 
     private void showSlice(Slice slice) {
 
-        // Main area
-        SliceItem mainItem = SliceQuery.find(slice, android.app.slice.SliceItem.FORMAT_SLICE,
-                null /* hints */, new String[]{android.app.slice.Slice.HINT_LIST_ITEM});
-        mHasHeader = mainItem != null;
-
-        List<SliceItem> subItems = SliceQuery.findAll(slice,
-                android.app.slice.SliceItem.FORMAT_SLICE,
-                new String[]{android.app.slice.Slice.HINT_LIST_ITEM},
-                null /* nonHints */);
-
+        ListContent lc = new ListContent(slice);
+        mHasHeader = lc.hasHeader();
+        List<SliceItem> subItems = lc.getRowItems();
         if (!mHasHeader) {
             mTitle.setVisibility(GONE);
         } else {
             mTitle.setVisibility(VISIBLE);
-            SliceItem mainTitle = SliceQuery.find(mainItem.getSlice(),
-                    android.app.slice.SliceItem.FORMAT_TEXT,
-                    new String[]{android.app.slice.Slice.HINT_TITLE},
-                    null /* nonHints */);
-            CharSequence title = mainTitle.getText();
+            // If there's a header it'll be the first subitem
+            RowContent header = new RowContent(subItems.get(0), true /* showStartItem */);
+            SliceItem mainTitle = header.getTitleItem();
+            CharSequence title = mainTitle != null ? mainTitle.getText() : null;
             mTitle.setText(title);
 
             // Check if we're already ellipsizing the text.
@@ -152,9 +146,10 @@
         mClickActions.clear();
         final int subItemsCount = subItems.size();
         final int blendedColor = getTextColor();
-
-        for (int i = 0; i < subItemsCount; i++) {
+        final int startIndex = mHasHeader ? 1 : 0; // First item is header; skip it
+        for (int i = startIndex; i < subItemsCount; i++) {
             SliceItem item = subItems.get(i);
+            RowContent rc = new RowContent(item, true /* showStartItem */);
             final Uri itemTag = item.getSlice().getUri();
             // Try to reuse the view if already exists in the layout
             KeyguardSliceButton button = mRow.findViewWithTag(itemTag);
@@ -168,20 +163,13 @@
             button.setHasDivider(i < subItemsCount - 1);
             mRow.addView(button, i);
 
-            PendingIntent pendingIntent;
-            try {
-                pendingIntent = item.getAction();
-            } catch (RuntimeException e) {
-                Log.w(TAG, "Cannot retrieve action from keyguard slice", e);
-                pendingIntent = null;
+            PendingIntent pendingIntent = null;
+            if (rc.getContentIntent() != null) {
+                pendingIntent = rc.getContentIntent().getAction();
             }
             mClickActions.put(button, pendingIntent);
 
-            SliceItem title = SliceQuery.find(item.getSlice(),
-                    android.app.slice.SliceItem.FORMAT_TEXT,
-                    new String[]{android.app.slice.Slice.HINT_TITLE},
-                    null /* nonHints */);
-            button.setText(title.getText());
+            button.setText(rc.getTitleItem().getText());
 
             Drawable iconDrawable = null;
             SliceItem icon = SliceQuery.find(item.getSlice(),
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
index 2b656c2..e440731 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardStatusView.java
@@ -330,7 +330,7 @@
 
     public void setPulsing(boolean pulsing) {
         mPulsing = pulsing;
-        mKeyguardSlice.setVisibility(pulsing ? GONE : VISIBLE);
+        mKeyguardSlice.setVisibility(pulsing ? INVISIBLE : VISIBLE);
         onSliceContentChanged(mKeyguardSlice.hasHeader());
         updateDozeVisibleViews();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/OverviewProxyService.java b/packages/SystemUI/src/com/android/systemui/OverviewProxyService.java
index 0be522b..244c1b9 100644
--- a/packages/SystemUI/src/com/android/systemui/OverviewProxyService.java
+++ b/packages/SystemUI/src/com/android/systemui/OverviewProxyService.java
@@ -195,6 +195,10 @@
         return mOverviewProxy;
     }
 
+    public ComponentName getLauncherComponent() {
+        return mLauncherComponentName;
+    }
+
     private void disconnectFromLauncherService() {
         if (mOverviewProxy != null) {
             mOverviewProxy.asBinder().unlinkToDeath(mOverviewServiceDeathRcpt, 0);
diff --git a/packages/SystemUI/src/com/android/systemui/Prefs.java b/packages/SystemUI/src/com/android/systemui/Prefs.java
index 4437d31..9319bc6 100644
--- a/packages/SystemUI/src/com/android/systemui/Prefs.java
+++ b/packages/SystemUI/src/com/android/systemui/Prefs.java
@@ -48,6 +48,8 @@
         Key.QS_WORK_ADDED,
         Key.QS_NIGHTDISPLAY_ADDED,
         Key.SEEN_MULTI_USER,
+        Key.NUM_APPS_LAUNCHED,
+        Key.HAS_SWIPED_UP_FOR_RECENTS,
     })
     public @interface Key {
         @Deprecated
@@ -75,6 +77,8 @@
         @Deprecated
         String QS_NIGHTDISPLAY_ADDED = "QsNightDisplayAdded";
         String SEEN_MULTI_USER = "HasSeenMultiUser";
+        String NUM_APPS_LAUNCHED = "NumAppsLaunched";
+        String HAS_SWIPED_UP_FOR_RECENTS = "HasSwipedUpForRecents";
     }
 
     public static boolean getBoolean(Context context, @Key String key, boolean defaultValue) {
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
index 3538327..2c0e95b 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIApplication.java
@@ -61,7 +61,7 @@
  */
 public class SystemUIApplication extends Application implements SysUiServiceProvider {
 
-    private static final String TAG = "SystemUIService";
+    public static final String TAG = "SystemUIService";
     private static final boolean DEBUG = false;
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIService.java b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
index 11e0f28..ddf0bd0 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIService.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
@@ -20,11 +20,15 @@
 import android.content.Intent;
 import android.os.Build;
 import android.os.IBinder;
+import android.os.Process;
 import android.os.SystemProperties;
+import android.util.Slog;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 
+import com.android.internal.os.BinderInternal;
+
 public class SystemUIService extends Service {
 
     @Override
@@ -36,6 +40,21 @@
         if (Build.IS_DEBUGGABLE && SystemProperties.getBoolean("debug.crash_sysui", false)) {
             throw new RuntimeException();
         }
+
+        if (Build.IS_DEBUGGABLE) {
+            // b/71353150 - looking for leaked binder proxies
+            BinderInternal.nSetBinderProxyCountEnabled(true);
+            BinderInternal.nSetBinderProxyCountWatermarks(1000,900);
+            BinderInternal.setBinderProxyCountCallback(
+                    new BinderInternal.BinderProxyLimitListener() {
+                        @Override
+                        public void onLimitReached(int uid) {
+                            Slog.w(SystemUIApplication.TAG,
+                                    "uid " + uid + " sent too many Binder proxies to uid "
+                                    + Process.myUid());
+                        }
+                    }, Dependency.get(Dependency.MAIN_HANDLER));
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/fingerprint/FingerprintDialogView.java b/packages/SystemUI/src/com/android/systemui/fingerprint/FingerprintDialogView.java
index 19bc2ec..9779937 100644
--- a/packages/SystemUI/src/com/android/systemui/fingerprint/FingerprintDialogView.java
+++ b/packages/SystemUI/src/com/android/systemui/fingerprint/FingerprintDialogView.java
@@ -146,7 +146,7 @@
         subtitle.setText(mBundle.getCharSequence(FingerprintDialog.KEY_SUBTITLE));
         description.setText(mBundle.getCharSequence(FingerprintDialog.KEY_DESCRIPTION));
         negative.setText(mBundle.getCharSequence(FingerprintDialog.KEY_NEGATIVE_TEXT));
-        image.setImageDrawable(getAppIcon());
+        setAppIcon(image);
 
         final CharSequence positiveText =
                 mBundle.getCharSequence(FingerprintDialog.KEY_POSITIVE_TEXT);
@@ -190,6 +190,7 @@
     private void showMessage(String message) {
         mHandler.removeMessages(FingerprintDialogImpl.MSG_CLEAR_MESSAGE);
         mErrorText.setText(message);
+        mErrorText.setContentDescription(message);
         mErrorText.setVisibility(View.VISIBLE);
         mHandler.sendMessageDelayed(mHandler.obtainMessage(FingerprintDialogImpl.MSG_CLEAR_MESSAGE),
                 FingerprintDialog.HIDE_DIALOG_DELAY);
@@ -205,12 +206,16 @@
                 false /* userCanceled */), FingerprintDialog.HIDE_DIALOG_DELAY);
     }
 
-    private Drawable getAppIcon() {
+    private void setAppIcon(ImageView image) {
         final ActivityManager.RunningTaskInfo taskInfo = mActivityManagerWrapper.getRunningTask();
         final ComponentName cn = taskInfo.topActivity;
         final int userId = mActivityManagerWrapper.getCurrentUserId();
         final ActivityInfo activityInfo = mPackageManageWrapper.getActivityInfo(cn, userId);
-        return mActivityManagerWrapper.getBadgedActivityIcon(activityInfo, userId);
+        image.setImageDrawable(mActivityManagerWrapper.getBadgedActivityIcon(activityInfo, userId));
+        image.setContentDescription(
+                getResources().getString(R.string.accessibility_fingerprint_dialog_app_icon)
+                        + " "
+                        + mActivityManagerWrapper.getBadgedActivityLabel(activityInfo, userId));
     }
 
     public WindowManager.LayoutParams getLayoutParams() {
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
index e49e80d..c7d276c 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/KeyguardSliceProvider.java
@@ -118,7 +118,7 @@
     public boolean onCreateSliceProvider() {
         mNextAlarmController = new NextAlarmControllerImpl(getContext());
         mNextAlarmController.addCallback(this);
-        mDatePattern = getContext().getString(R.string.system_ui_date_pattern);
+        mDatePattern = getContext().getString(R.string.system_ui_aod_date_pattern);
         registerClockUpdate(false /* everyMinute */);
         updateClock();
         return true;
diff --git a/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimates.java b/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimates.java
index 8f41a60..bd130f4 100644
--- a/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimates.java
+++ b/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimates.java
@@ -2,7 +2,25 @@
 
 public interface EnhancedEstimates {
 
+    /**
+     * Returns a boolean indicating if the hybrid notification should be used.
+     */
     boolean isHybridNotificationEnabled();
 
+    /**
+     * Returns an estimate object if the feature is enabled.
+     */
     Estimate getEstimate();
+
+    /**
+     * Returns a long indicating the amount of time remaining in milliseconds under which we will
+     * show a regular warning to the user.
+     */
+    long getLowWarningThreshold();
+
+    /**
+     * Returns a long indicating the amount of time remaining in milliseconds under which we will
+     * show a severe warning to the user.
+     */
+    long getSevereWarningThreshold();
 }
diff --git a/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimatesImpl.java b/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimatesImpl.java
index d447542..5686d80 100644
--- a/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimatesImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/power/EnhancedEstimatesImpl.java
@@ -13,4 +13,14 @@
     public Estimate getEstimate() {
         return null;
     }
+
+    @Override
+    public long getLowWarningThreshold() {
+        return 0;
+    }
+
+    @Override
+    public long getSevereWarningThreshold() {
+        return 0;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/power/PowerNotificationWarnings.java b/packages/SystemUI/src/com/android/systemui/power/PowerNotificationWarnings.java
index 736286f..aa56694 100644
--- a/packages/SystemUI/src/com/android/systemui/power/PowerNotificationWarnings.java
+++ b/packages/SystemUI/src/com/android/systemui/power/PowerNotificationWarnings.java
@@ -99,6 +99,8 @@
     private long mWarningTriggerTimeMs;
 
     private Estimate mEstimate;
+    private long mLowWarningThreshold;
+    private long mSevereWarningThreshold;
     private boolean mWarning;
     private boolean mPlaySound;
     private boolean mInvalidCharger;
@@ -142,11 +144,18 @@
     @Override
     public void updateEstimate(Estimate estimate) {
         mEstimate = estimate;
-        if (estimate.estimateMillis <= PowerUI.THREE_HOURS_IN_MILLIS) {
+        if (estimate.estimateMillis <= mLowWarningThreshold) {
             mWarningTriggerTimeMs = System.currentTimeMillis();
         }
     }
 
+    @Override
+    public void updateThresholds(long lowThreshold, long severeThreshold) {
+        mLowWarningThreshold = lowThreshold;
+        mSevereWarningThreshold = severeThreshold;
+    }
+
+
     private void updateNotification() {
         if (DEBUG) Slog.d(TAG, "updateNotification mWarning=" + mWarning + " mPlaySound="
                 + mPlaySound + " mInvalidCharger=" + mInvalidCharger);
@@ -181,7 +190,8 @@
     }
 
     protected void showWarningNotification() {
-        final String percentage = NumberFormat.getPercentInstance().format((double) mBatteryLevel / 100.0);
+        final String percentage = NumberFormat.getPercentInstance()
+                .format((double) mBatteryLevel / 100.0);
 
         // get standard notification copy
         String title = mContext.getString(R.string.battery_low_title);
@@ -214,7 +224,8 @@
         }
         // Make the notification red if the percentage goes below a certain amount or the time
         // remaining estimate is disabled
-        if (mEstimate == null || mBucket < 0) {
+        if (mEstimate == null || mBucket < 0
+                || mEstimate.estimateMillis < mSevereWarningThreshold) {
             nb.setColor(Utils.getColorAttr(mContext, android.R.attr.colorError));
         }
         nb.addAction(0,
diff --git a/packages/SystemUI/src/com/android/systemui/power/PowerUI.java b/packages/SystemUI/src/com/android/systemui/power/PowerUI.java
index c5aab60..b43e99b 100644
--- a/packages/SystemUI/src/com/android/systemui/power/PowerUI.java
+++ b/packages/SystemUI/src/com/android/systemui/power/PowerUI.java
@@ -269,6 +269,8 @@
             if (estimate != null) {
                 mTimeRemaining = estimate.estimateMillis;
                 mWarnings.updateEstimate(estimate);
+                mWarnings.updateThresholds(mEnhancedEstimates.getLowWarningThreshold(),
+                        mEnhancedEstimates.getSevereWarningThreshold());
             }
         }
 
@@ -292,7 +294,7 @@
                 && !isPowerSaver
                 && (((bucket < oldBucket || oldPlugged) && bucket < 0)
                         || (mEnhancedEstimates.isHybridNotificationEnabled()
-                                && timeRemaining < THREE_HOURS_IN_MILLIS
+                                && timeRemaining < mEnhancedEstimates.getLowWarningThreshold()
                                 && isHourLess(oldTimeRemaining, timeRemaining)))
                 && mBatteryStatus != BatteryManager.BATTERY_STATUS_UNKNOWN;
     }
@@ -306,7 +308,7 @@
     boolean shouldDismissLowBatteryWarning(boolean plugged, int oldBucket, int bucket,
             long timeRemaining, boolean isPowerSaver) {
         final boolean hybridWouldDismiss = mEnhancedEstimates.isHybridNotificationEnabled()
-                && timeRemaining > THREE_HOURS_IN_MILLIS;
+                && timeRemaining > mEnhancedEstimates.getLowWarningThreshold();
         final boolean standardWouldDismiss = (bucket > oldBucket && bucket > 0);
         return isPowerSaver
                 || plugged
@@ -485,6 +487,7 @@
     public interface WarningsUI {
         void update(int batteryLevel, int bucket, long screenOffTime);
         void updateEstimate(Estimate estimate);
+        void updateThresholds(long lowThreshold, long severeThreshold);
         void dismissLowBatteryWarning();
         void showLowBatteryWarning(boolean playSound);
         void dismissInvalidChargerWarning();
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
index 8f18800..95185c0 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
@@ -244,10 +244,8 @@
             mFirstPageDelayedAnimator = new TouchAnimator.Builder()
                     .setStartDelay(EXPANDED_TILE_DELAY)
                     .addFloat(tileLayout, "alpha", 0, 1)
-                    .addFloat(mQsPanel.getPageIndicator(), "alpha", 0, 1)
                     .addFloat(mQsPanel.getDivider(), "alpha", 0, 1)
                     .addFloat(mQsPanel.getFooter().getView(), "alpha", 0, 1).build();
-            mAllViews.add(mQsPanel.getPageIndicator());
             mAllViews.add(mQsPanel.getDivider());
             mAllViews.add(mQsPanel.getFooter().getView());
             float px = 0;
@@ -265,7 +263,6 @@
         }
         mNonfirstPageAnimator = new TouchAnimator.Builder()
                 .addFloat(mQuickQsPanel, "alpha", 1, 0)
-                .addFloat(mQsPanel.getPageIndicator(), "alpha", 0, 1)
                 .addFloat(mQsPanel.getDivider(), "alpha", 0, 1)
                 .setListener(mNonFirstPageListener)
                 .setEndDelay(.5f)
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSContainerImpl.java b/packages/SystemUI/src/com/android/systemui/qs/QSContainerImpl.java
index 7320b86..6b0d592 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSContainerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSContainerImpl.java
@@ -17,11 +17,11 @@
 package com.android.systemui.qs;
 
 import android.content.Context;
+import android.content.res.Configuration;
 import android.graphics.Canvas;
 import android.graphics.Path;
 import android.graphics.Point;
 import android.util.AttributeSet;
-import android.util.Log;
 import android.view.View;
 import android.widget.FrameLayout;
 
@@ -80,11 +80,22 @@
 
     @Override
     protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+        getDisplay().getRealSize(mSizePoint);
+
         // Since we control our own bottom, be whatever size we want.
         // Otherwise the QSPanel ends up with 0 height when the window is only the
         // size of the status bar.
-        mQSPanel.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(
-                MeasureSpec.getSize(heightMeasureSpec), MeasureSpec.UNSPECIFIED));
+        Configuration config = getResources().getConfiguration();
+        boolean navBelow = config.smallestScreenWidthDp >= 600
+                || config.orientation != Configuration.ORIENTATION_LANDSCAPE;
+        MarginLayoutParams params = (MarginLayoutParams) mQSPanel.getLayoutParams();
+        int maxQs = mSizePoint.y - params.topMargin - params.bottomMargin - getPaddingBottom()
+                - getResources().getDimensionPixelSize(R.dimen.qs_notif_collapsed_space);
+        if (navBelow) {
+            maxQs -= getResources().getDimensionPixelSize(R.dimen.navigation_bar_height);
+        }
+        mQSPanel.measure(widthMeasureSpec, MeasureSpec.makeMeasureSpec(maxQs, MeasureSpec.AT_MOST));
+
         int width = mQSPanel.getMeasuredWidth();
         LayoutParams layoutParams = (LayoutParams) mQSPanel.getLayoutParams();
         int height = layoutParams.topMargin + layoutParams.bottomMargin
@@ -94,7 +105,6 @@
 
         // QSCustomizer will always be the height of the screen, but do this after
         // other measuring to avoid changing the height of the QS.
-        getDisplay().getRealSize(mSizePoint);
         mQSCustomizer.measure(widthMeasureSpec,
                 MeasureSpec.makeMeasureSpec(mSizePoint.y, MeasureSpec.EXACTLY));
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSFragment.java b/packages/SystemUI/src/com/android/systemui/qs/QSFragment.java
index cdf0c0f..29a8f16 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSFragment.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSFragment.java
@@ -25,6 +25,7 @@
 import android.util.Log;
 import android.view.ContextThemeWrapper;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
 import android.view.View.OnClickListener;
 import android.view.ViewGroup;
@@ -207,6 +208,11 @@
     }
 
     @Override
+    public boolean onInterceptTouchEvent(MotionEvent event) {
+        return isCustomizing() || mQSPanel.onInterceptTouchEvent(event);
+    }
+
+    @Override
     public void setHeaderClickable(boolean clickable) {
         if (DEBUG) Log.d(TAG, "setHeaderClickable " + clickable);
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
index 8f41084..00b6c1e 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
@@ -28,8 +28,8 @@
 import android.service.quicksettings.Tile;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
-import android.widget.ImageView;
 import android.widget.LinearLayout;
 
 import com.android.internal.logging.MetricsLogger;
@@ -62,11 +62,8 @@
     protected final ArrayList<TileRecord> mRecords = new ArrayList<TileRecord>();
     protected final View mBrightnessView;
     private final H mHandler = new H();
-    private final View mPageIndicator;
     private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class);
 
-    private int mPanelPaddingBottom;
-    private int mBrightnessPaddingTop;
     protected boolean mExpanded;
     protected boolean mListening;
 
@@ -77,6 +74,7 @@
     protected QSSecurityFooter mFooter;
     private boolean mGridContentVisible = true;
 
+    private QSScrollLayout mScrollLayout;
     protected QSTileLayout mTileLayout;
 
     private QSCustomizer mCustomizePanel;
@@ -95,18 +93,12 @@
 
         setOrientation(VERTICAL);
 
-        mBrightnessView = LayoutInflater.from(context).inflate(
-                R.layout.quick_settings_brightness_dialog, this, false);
-        addView(mBrightnessView);
-
-        setupTileLayout();
-
-        mPageIndicator = LayoutInflater.from(context).inflate(
-                R.layout.qs_page_indicator, this, false);
-        addView(mPageIndicator);
-        if (mTileLayout instanceof PagedTileLayout) {
-            ((PagedTileLayout) mTileLayout).setPageIndicator((PageIndicator) mPageIndicator);
-        }
+        mBrightnessView = LayoutInflater.from(mContext).inflate(
+            R.layout.quick_settings_brightness_dialog, this, false);
+        mTileLayout = new TileLayout(mContext);
+        mTileLayout.setListening(mListening);
+        mScrollLayout = new QSScrollLayout(mContext, mBrightnessView, (View) mTileLayout);
+        addView(mScrollLayout);
 
         addDivider();
 
@@ -131,17 +123,6 @@
         return mDivider;
     }
 
-    public View getPageIndicator() {
-        return mPageIndicator;
-    }
-
-    protected void setupTileLayout() {
-        mTileLayout = (QSTileLayout) LayoutInflater.from(mContext).inflate(
-                R.layout.qs_paged_tile_layout, this, false);
-        mTileLayout.setListening(mListening);
-        addView((View) mTileLayout);
-    }
-
     public boolean isShowingCustomize() {
         return mCustomizePanel != null && mCustomizePanel.isCustomizing();
     }
@@ -241,9 +222,13 @@
 
     public void updateResources() {
         final Resources res = mContext.getResources();
-        mPanelPaddingBottom = res.getDimensionPixelSize(R.dimen.qs_panel_padding_bottom);
-        mBrightnessPaddingTop = res.getDimensionPixelSize(R.dimen.qs_brightness_padding_top);
-        setPadding(0, mBrightnessPaddingTop, 0, mPanelPaddingBottom);
+        mBrightnessView.setPadding(
+            mBrightnessView.getPaddingLeft(),
+            res.getDimensionPixelSize(R.dimen.qs_brightness_padding_top),
+            mBrightnessView.getPaddingRight(),
+            mBrightnessView.getPaddingBottom());
+        setPadding(
+            0, 0, 0, res.getDimensionPixelSize(R.dimen.qs_panel_padding_bottom));
         for (TileRecord r : mRecords) {
             r.tile.clearState();
         }
@@ -282,8 +267,11 @@
     public void setExpanded(boolean expanded) {
         if (mExpanded == expanded) return;
         mExpanded = expanded;
-        if (!mExpanded && mTileLayout instanceof PagedTileLayout) {
-            ((PagedTileLayout) mTileLayout).setCurrentItem(0, false);
+        if (!mExpanded) {
+            if (mTileLayout instanceof PagedTileLayout) {
+                ((PagedTileLayout) mTileLayout).setCurrentItem(0, false);
+            }
+            mScrollLayout.setScrollY(0);
         }
         mMetricsLogger.visibility(MetricsEvent.QS_PANEL, mExpanded);
         if (!mExpanded) {
@@ -317,6 +305,7 @@
     }
 
     public void refreshAllTiles() {
+        mBrightnessController.checkRestrictionAndSetEnabled();
         for (TileRecord r : mRecords) {
             r.tile.refreshState();
         }
@@ -564,6 +553,11 @@
         mFooter.showDeviceMonitoringDialog();
     }
 
+    @Override
+    public boolean onInterceptTouchEvent(MotionEvent event) {
+        return mExpanded && mScrollLayout.shouldIntercept(event);
+    }
+
     private class H extends Handler {
         private static final int SHOW_DETAIL = 1;
         private static final int SET_TILE_VISIBILITY = 2;
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSScrollLayout.java b/packages/SystemUI/src/com/android/systemui/qs/QSScrollLayout.java
new file mode 100644
index 0000000..9a74787
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSScrollLayout.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the
+ * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+package com.android.systemui.qs;
+
+import android.content.Context;
+import android.graphics.Rect;
+import android.support.v4.widget.NestedScrollView;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewConfiguration;
+import android.view.ViewParent;
+import android.widget.LinearLayout;
+
+/**
+ * Quick setting scroll view containing the brightness slider and the QS tiles.
+ *
+ * <p>Call {@link #shouldIntercept(MotionEvent)} from parent views'
+ * {@link #onInterceptTouchEvent(MotionEvent)} method to determine whether this view should
+ * consume the touch event.
+ */
+public class QSScrollLayout extends NestedScrollView {
+    private final int mTouchSlop;
+    private int mLastMotionY;
+    private Rect mHitRect = new Rect();
+
+    public QSScrollLayout(Context context, View... children) {
+        super(context);
+        mTouchSlop = ViewConfiguration.get(getContext()).getScaledTouchSlop();
+        LinearLayout linearLayout = new LinearLayout(mContext);
+        linearLayout.setLayoutParams(new LinearLayout.LayoutParams(
+            LinearLayout.LayoutParams.MATCH_PARENT,
+            LinearLayout.LayoutParams.WRAP_CONTENT));
+        linearLayout.setOrientation(LinearLayout.VERTICAL);
+        for (View view : children) {
+            linearLayout.addView(view);
+        }
+        addView(linearLayout);
+    }
+
+    public boolean shouldIntercept(MotionEvent ev) {
+        getHitRect(mHitRect);
+        if (!mHitRect.contains((int) ev.getX(), (int) ev.getY())) {
+            // Do not intercept touches that are not within this view's bounds.
+            return false;
+        }
+        if (ev.getActionMasked() == MotionEvent.ACTION_DOWN) {
+            mLastMotionY = (int) ev.getY();
+        } else if (ev.getActionMasked() == MotionEvent.ACTION_MOVE) {
+            // Do not allow NotificationPanelView to intercept touch events when this
+            // view can be scrolled down.
+            if (mLastMotionY >= 0 && Math.abs(ev.getY() - mLastMotionY) > mTouchSlop
+                    && canScrollVertically(1)) {
+                requestParentDisallowInterceptTouchEvent(true);
+                mLastMotionY = (int) ev.getY();
+                return true;
+            }
+        } else if (ev.getActionMasked() == MotionEvent.ACTION_CANCEL
+            || ev.getActionMasked() == MotionEvent.ACTION_UP) {
+            mLastMotionY = -1;
+            requestParentDisallowInterceptTouchEvent(false);
+        }
+        return false;
+    }
+
+    private void requestParentDisallowInterceptTouchEvent(boolean disallowIntercept) {
+        final ViewParent parent = getParent();
+        if (parent != null) {
+            parent.requestDisallowInterceptTouchEvent(disallowIntercept);
+        }
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
index 947b23f..8314855 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
@@ -20,6 +20,7 @@
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.View;
+import android.view.ViewGroup;
 import android.widget.LinearLayout;
 import android.widget.Space;
 
@@ -50,13 +51,14 @@
     public QuickQSPanel(Context context, AttributeSet attrs) {
         super(context, attrs);
         if (mFooter != null) {
-            removeView((View) mFooter.getView());
+            removeView(mFooter.getView());
         }
         if (mTileLayout != null) {
             for (int i = 0; i < mRecords.size(); i++) {
                 mTileLayout.removeTile(mRecords.get(i));
             }
-            removeView((View) mTileLayout);
+            View tileLayoutView = (View) mTileLayout;
+            ((ViewGroup) tileLayoutView.getParent()).removeView(tileLayoutView);
         }
         mTileLayout = new HeaderTileLayout(context);
         mTileLayout.setListening(mListening);
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickStatusBarHeader.java b/packages/SystemUI/src/com/android/systemui/qs/QuickStatusBarHeader.java
index a97b35c..17ede65 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickStatusBarHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickStatusBarHeader.java
@@ -39,7 +39,8 @@
 import com.android.systemui.plugins.ActivityStarter;
 import com.android.systemui.qs.QSDetail.Callback;
 import com.android.systemui.statusbar.CommandQueue;
-import com.android.systemui.statusbar.SignalClusterView;
+import com.android.systemui.statusbar.phone.StatusBarIconController;
+import com.android.systemui.statusbar.phone.StatusBarIconController.TintedIconManager;
 import com.android.systemui.statusbar.policy.DarkIconDispatcher;
 import com.android.systemui.statusbar.policy.DarkIconDispatcher.DarkReceiver;
 
@@ -56,6 +57,10 @@
 
     protected QuickQSPanel mHeaderQsPanel;
     protected QSTileHost mHost;
+    private TintedIconManager mIconManager;
+    private TouchAnimator mAlphaAnimator;
+
+    private View mQuickQsStatusIcons;
 
     private View mDate;
 
@@ -71,16 +76,25 @@
         mHeaderQsPanel = findViewById(R.id.quick_qs_panel);
         mDate = findViewById(R.id.date);
         mDate.setOnClickListener(this);
+        mQuickQsStatusIcons = findViewById(R.id.quick_qs_status_icons);
+        mIconManager = new TintedIconManager(findViewById(R.id.statusIcons));
 
         // RenderThread is doing more harm than good when touching the header (to expand quick
         // settings), so disable it for this view
 
         updateResources();
 
-        // Set light text on the header icons because they will always be on a black background
-        int colorForeground = Utils.getColorAttr(getContext(), android.R.attr.colorForeground);
         Rect tintArea = new Rect(0, 0, 0, 0);
+        int colorForeground = Utils.getColorAttr(getContext(), android.R.attr.colorForeground);
+        float intensity = colorForeground == Color.WHITE ? 0 : 1;
+        int fillColor = fillColorForIntensity(intensity, getContext());
+
+        // Set light text on the header icons because they will always be on a black background
         applyDarkness(R.id.clock, tintArea, 0, DarkIconDispatcher.DEFAULT_ICON_TINT);
+        applyDarkness(id.signal_cluster, tintArea, intensity, colorForeground);
+
+        // Set the correct tint for the status icons so they contrast
+        mIconManager.setTint(fillColor);
 
         BatteryMeterView battery = findViewById(R.id.battery);
         battery.setFillColor(Color.WHITE);
@@ -96,6 +110,13 @@
         }
     }
 
+    private int fillColorForIntensity(float intensity, Context context) {
+        if (intensity == 0) {
+            return context.getColor(R.color.light_mode_icon_color_dual_tone_fill);
+        }
+        return context.getColor(R.color.dark_mode_icon_color_dual_tone_fill);
+    }
+
     @Override
     protected void onConfigurationChanged(Configuration newConfig) {
         super.onConfigurationChanged(newConfig);
@@ -109,6 +130,13 @@
     }
 
     private void updateResources() {
+        updateAlphaAnimator();
+    }
+
+    private void updateAlphaAnimator() {
+        mAlphaAnimator = new TouchAnimator.Builder()
+                .addFloat(mQuickQsStatusIcons, "alpha", 1, 0)
+                .build();
     }
 
     public int getCollapsedHeight() {
@@ -127,6 +155,9 @@
     }
 
     public void setExpansion(float headerExpansionFraction) {
+        if (mAlphaAnimator != null ) {
+            mAlphaAnimator.setPosition(headerExpansionFraction);
+        }
     }
 
     @Override
@@ -142,6 +173,7 @@
     @Override
     public void onAttachedToWindow() {
         SysUiServiceProvider.getComponent(getContext(), CommandQueue.class).addCallbacks(this);
+        Dependency.get(StatusBarIconController.class).addIconGroup(mIconManager);
     }
 
     @Override
@@ -149,17 +181,10 @@
     public void onDetachedFromWindow() {
         setListening(false);
         SysUiServiceProvider.getComponent(getContext(), CommandQueue.class).removeCallbacks(this);
+        Dependency.get(StatusBarIconController.class).removeIconGroup(mIconManager);
         super.onDetachedFromWindow();
     }
 
-    @Override
-    public void onClick(View v) {
-        if (v == mDate) {
-            Dependency.get(ActivityStarter.class).postStartActivityDismissingKeyguard(new Intent(
-                    AlarmClock.ACTION_SHOW_ALARMS), 0);
-        }
-    }
-
     public void setListening(boolean listening) {
         if (listening == mListening) {
             return;
@@ -168,6 +193,14 @@
         mListening = listening;
     }
 
+    @Override
+    public void onClick(View v) {
+        if(v == mDate){
+            Dependency.get(ActivityStarter.class).postStartActivityDismissingKeyguard(new Intent(
+                    AlarmClock.ACTION_SHOW_ALARMS),0);
+        }
+    }
+
     public void updateEverything() {
         post(() -> setClickable(false));
     }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/DndTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/DndTile.java
index 4ceace3..eb2e519 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tiles/DndTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/DndTile.java
@@ -19,6 +19,9 @@
 import static android.provider.Settings.Global.ZEN_MODE_ALARMS;
 import static android.provider.Settings.Global.ZEN_MODE_OFF;
 
+import android.app.AlarmManager;
+import android.app.AlarmManager.AlarmClockInfo;
+import android.app.Dialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -27,9 +30,11 @@
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
+import android.net.Uri;
 import android.os.UserManager;
 import android.provider.Settings;
 import android.provider.Settings.Global;
+import android.service.notification.ScheduleCalendar;
 import android.service.notification.ZenModeConfig;
 import android.service.notification.ZenModeConfig.ZenRule;
 import android.service.quicksettings.Tile;
@@ -38,11 +43,13 @@
 import android.view.View;
 import android.view.View.OnAttachStateChangeListener;
 import android.view.ViewGroup;
+import android.view.WindowManager;
 import android.widget.Switch;
 import android.widget.Toast;
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settingslib.notification.EnableZenModeDialog;
 import com.android.systemui.Dependency;
 import com.android.systemui.Prefs;
 import com.android.systemui.R;
@@ -53,6 +60,7 @@
 import com.android.systemui.plugins.qs.QSTile.BooleanState;
 import com.android.systemui.qs.QSHost;
 import com.android.systemui.qs.tileimpl.QSTileImpl;
+import com.android.systemui.statusbar.phone.SystemUIDialog;
 import com.android.systemui.statusbar.policy.ZenModeController;
 import com.android.systemui.volume.ZenModePanel;
 
@@ -129,14 +137,28 @@
 
     @Override
     protected void handleClick() {
+        // Zen is currently on
         if (mState.value) {
             mController.setZen(ZEN_MODE_OFF, null, TAG);
         } else {
-            mController.setZen(Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS, null, TAG);
+            showDetail(true);
         }
     }
 
     @Override
+    public void showDetail(boolean show) {
+        mUiHandler.post(() -> {
+            Dialog mDialog = new EnableZenModeDialog(mContext).createDialog();
+            mDialog.getWindow().setType(WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
+            SystemUIDialog.setShowForAllUsers(mDialog, true);
+            SystemUIDialog.registerDismissListener(mDialog);
+            SystemUIDialog.setWindowOnTop(mDialog);
+            mUiHandler.post(() -> mDialog.show());
+            mHost.collapsePanels();
+        });
+    }
+
+    @Override
     protected void handleSecondaryClick() {
         if (mController.isVolumeRestricted()) {
             // Collapse the panels, so the user can see the toast.
@@ -177,29 +199,27 @@
         state.value = newValue;
         state.state = state.value ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
         state.slash.isSlashed = !state.value;
+        state.label = getTileLabel();
+        state.secondaryLabel = getSecondaryLabel(zen != Global.ZEN_MODE_OFF);
         checkIfRestrictionEnforcedByAdminOnly(state, UserManager.DISALLOW_ADJUST_VOLUME);
         switch (zen) {
             case Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS:
                 state.icon = ResourceIcon.get(R.drawable.ic_qs_dnd_on);
-                state.label = mContext.getString(R.string.quick_settings_dnd_priority_label);
                 state.contentDescription = mContext.getString(
                         R.string.accessibility_quick_settings_dnd_priority_on);
                 break;
             case Global.ZEN_MODE_NO_INTERRUPTIONS:
                 state.icon = TOTAL_SILENCE;
-                state.label = mContext.getString(R.string.quick_settings_dnd_none_label);
                 state.contentDescription = mContext.getString(
                         R.string.accessibility_quick_settings_dnd_none_on);
                 break;
             case ZEN_MODE_ALARMS:
                 state.icon = ResourceIcon.get(R.drawable.ic_qs_dnd_on);
-                state.label = mContext.getString(R.string.quick_settings_dnd_alarms_label);
                 state.contentDescription = mContext.getString(
                         R.string.accessibility_quick_settings_dnd_alarms_on);
                 break;
             default:
                 state.icon = ResourceIcon.get(R.drawable.ic_qs_dnd_on);
-                state.label = mContext.getString(R.string.quick_settings_dnd_label);
                 state.contentDescription = mContext.getString(
                         R.string.accessibility_quick_settings_dnd);
                 break;
@@ -212,6 +232,102 @@
         state.expandedAccessibilityClassName = Switch.class.getName();
     }
 
+    /**
+     * Returns the secondary label to use for the given instance of do not disturb.
+     * - If turned on manually and end time is known, returns end time.
+     * - If turned on by an automatic rule, returns the automatic rule name.
+     * - If on due to an app, returns the app name.
+     * - If there's a combination of rules/apps that trigger, then shows the one that will
+     *  last the longest if applicable.
+     * @return null if do not disturb is off.
+     */
+    private String getSecondaryLabel(boolean zenOn) {
+        if (!zenOn) {
+            return null;
+        }
+
+        ZenModeConfig config = mController.getConfig();
+        String secondaryText = "";
+        long latestEndTime = -1;
+
+        // DND turned on by manual rule
+        if (config.manualRule != null) {
+            final Uri id = config.manualRule.conditionId;
+            if (config.manualRule.enabler != null) {
+                // app triggered manual rule
+                String appName = ZenModeConfig.getOwnerCaption(mContext, config.manualRule.enabler);
+                if (!appName.isEmpty()) {
+                    secondaryText = appName;
+                }
+            } else {
+                if (id == null) {
+                    // Do not disturb manually triggered to remain on forever until turned off
+                    // No subtext
+                    return null;
+                } else {
+                    latestEndTime = ZenModeConfig.tryParseCountdownConditionId(id);
+                    if (latestEndTime > 0) {
+                        final CharSequence formattedTime = ZenModeConfig.getFormattedTime(mContext,
+                                latestEndTime, ZenModeConfig.isToday(latestEndTime),
+                                mContext.getUserId());
+                        secondaryText = mContext.getString(R.string.qs_dnd_until, formattedTime);
+                    }
+                }
+            }
+        }
+
+        // DND turned on by an automatic rule
+        for (ZenModeConfig.ZenRule automaticRule : config.automaticRules.values()) {
+            if (automaticRule.isAutomaticActive()) {
+                if (ZenModeConfig.isValidEventConditionId(automaticRule.conditionId) ||
+                        ZenModeConfig.isValidScheduleConditionId(automaticRule.conditionId)) {
+                    // set text if automatic rule end time is the latest active rule end time
+                    long endTime = parseAutomaticRuleEndTime(automaticRule.conditionId);
+                    if (endTime > latestEndTime) {
+                        latestEndTime = endTime;
+                        secondaryText = automaticRule.name;
+                    }
+                } else {
+                    // set text if 3rd party rule
+                    return automaticRule.name;
+                }
+            }
+        }
+
+        return !secondaryText.equals("") ? secondaryText : null;
+    }
+
+    private long parseAutomaticRuleEndTime(Uri id) {
+        if (ZenModeConfig.isValidEventConditionId(id)) {
+            // cannot look up end times for events
+            return Long.MAX_VALUE;
+        }
+
+        if (ZenModeConfig.isValidScheduleConditionId(id)) {
+            ScheduleCalendar schedule = ZenModeConfig.toScheduleCalendar(id);
+            long endTimeMs = schedule.getNextChangeTime(System.currentTimeMillis());
+
+            // check if automatic rule will end on next alarm
+            if (schedule.exitAtAlarm()) {
+                long nextAlarm = getNextAlarm(mContext);
+                schedule.maybeSetNextAlarm(System.currentTimeMillis(), nextAlarm);
+                if (schedule.shouldExitForAlarm(endTimeMs)) {
+                    return nextAlarm;
+                }
+            }
+
+            return endTimeMs;
+        }
+
+        return -1;
+    }
+
+    private long getNextAlarm(Context context) {
+        final AlarmManager alarms = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
+        final AlarmClockInfo info = alarms.getNextAlarmClock(mContext.getUserId());
+        return info != null ? info.getTriggerTime() : 0;
+    }
+
     @Override
     public int getMetricsCategory() {
         return MetricsEvent.QS_DND;
diff --git a/packages/SystemUI/src/com/android/systemui/qs/tiles/NightDisplayTile.java b/packages/SystemUI/src/com/android/systemui/qs/tiles/NightDisplayTile.java
index 99a9be3..ea6e174 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/tiles/NightDisplayTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/tiles/NightDisplayTile.java
@@ -39,7 +39,7 @@
      * Pattern for {@link java.time.format.DateTimeFormatter} used to approximate the time to the
      * nearest hour and add on the AM/PM indicator.
      */
-    private static final String APPROXIMATE_HOUR_DATE_TIME_PATTERN = "H a";
+    private static final String APPROXIMATE_HOUR_DATE_TIME_PATTERN = "h a";
 
     private ColorDisplayController mController;
     private boolean mIsListening;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/SwipeUpOnboarding.java b/packages/SystemUI/src/com/android/systemui/recents/SwipeUpOnboarding.java
new file mode 100644
index 0000000..0494e1b
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/recents/SwipeUpOnboarding.java
@@ -0,0 +1,252 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.recents;
+
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_STANDARD;
+import static android.app.WindowConfiguration.ACTIVITY_TYPE_UNDEFINED;
+
+import android.annotation.TargetApi;
+import android.app.ActivityManager;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.PixelFormat;
+import android.graphics.PorterDuff;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.RippleDrawable;
+import android.os.Build;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.WindowManager;
+import android.view.animation.AccelerateInterpolator;
+import android.view.animation.DecelerateInterpolator;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.android.systemui.Prefs;
+import com.android.systemui.R;
+import com.android.systemui.recents.misc.SysUiTaskStackChangeListener;
+import com.android.systemui.shared.system.ActivityManagerWrapper;
+
+/**
+ * Shows onboarding for the new recents interaction in P (codenamed quickstep).
+ */
+@TargetApi(Build.VERSION_CODES.P)
+public class SwipeUpOnboarding {
+
+    private static final String TAG = "SwipeUpOnboarding";
+    private static final boolean RESET_PREFS_FOR_DEBUG = false;
+    private static final long SHOW_DELAY_MS = 500;
+    private static final long SHOW_HIDE_DURATION_MS = 300;
+    // Don't show the onboarding until the user has launched this number of apps.
+    private static final int SHOW_ON_APP_LAUNCH = 2;
+
+    private final Context mContext;
+    private final WindowManager mWindowManager;
+    private final View mLayout;
+    private final TextView mTextView;
+    private final ImageView mDismissView;
+    private final ColorDrawable mBackgroundDrawable;
+    private final int mDarkBackgroundColor;
+    private final int mLightBackgroundColor;
+    private final int mDarkContentColor;
+    private final int mLightContentColor;
+    private final RippleDrawable mDarkRipple;
+    private final RippleDrawable mLightRipple;
+
+    private boolean mTaskListenerRegistered;
+    private ComponentName mLauncherComponent;
+    private boolean mLayoutAttachedToWindow;
+    private boolean mBackgroundIsLight;
+
+    private final SysUiTaskStackChangeListener mTaskListener = new SysUiTaskStackChangeListener() {
+        @Override
+        public void onTaskStackChanged() {
+            ActivityManager.RunningTaskInfo info = ActivityManagerWrapper.getInstance()
+                    .getRunningTask(ACTIVITY_TYPE_UNDEFINED /* ignoreActivityType */);
+            int activityType = info.configuration.windowConfiguration.getActivityType();
+            int numAppsLaunched = Prefs.getInt(mContext, Prefs.Key.NUM_APPS_LAUNCHED, 0);
+            if (activityType == ACTIVITY_TYPE_STANDARD) {
+                numAppsLaunched++;
+                if (numAppsLaunched >= SHOW_ON_APP_LAUNCH) {
+                    show();
+                } else {
+                    Prefs.putInt(mContext, Prefs.Key.NUM_APPS_LAUNCHED, numAppsLaunched);
+                }
+            } else {
+                String runningPackage = info.topActivity.getPackageName();
+                // TODO: use callback from the overview proxy service to handle this case
+                if (runningPackage.equals(mLauncherComponent.getPackageName())
+                        && activityType == ACTIVITY_TYPE_RECENTS) {
+                    Prefs.putBoolean(mContext, Prefs.Key.HAS_SWIPED_UP_FOR_RECENTS, true);
+                    onDisconnectedFromLauncher();
+                } else {
+                    hide(false);
+                }
+            }
+        }
+    };
+
+    private final View.OnAttachStateChangeListener mOnAttachStateChangeListener
+            = new View.OnAttachStateChangeListener() {
+        @Override
+        public void onViewAttachedToWindow(View view) {
+            if (view == mLayout) {
+                mLayoutAttachedToWindow = true;
+            }
+        }
+
+        @Override
+        public void onViewDetachedFromWindow(View view) {
+            if (view == mLayout) {
+                mLayoutAttachedToWindow = false;
+            }
+        }
+    };
+
+    public SwipeUpOnboarding(Context context) {
+        mContext = context;
+        final Resources res = context.getResources();
+        mWindowManager = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
+        mLayout = LayoutInflater.from(mContext).inflate(R.layout.recents_swipe_up_onboarding, null);
+        mTextView = (TextView) mLayout.findViewById(R.id.onboarding_text);
+        mDismissView = (ImageView) mLayout.findViewById(R.id.dismiss);
+        mDarkBackgroundColor = res.getColor(android.R.color.background_dark);
+        mLightBackgroundColor = res.getColor(android.R.color.background_light);
+        mDarkContentColor = res.getColor(R.color.primary_text_default_material_light);
+        mLightContentColor = res.getColor(R.color.primary_text_default_material_dark);
+        mDarkRipple = new RippleDrawable(res.getColorStateList(R.color.ripple_material_light),
+                null, null);
+        mLightRipple = new RippleDrawable(res.getColorStateList(R.color.ripple_material_dark),
+                null, null);
+        mBackgroundDrawable = new ColorDrawable(mDarkBackgroundColor);
+
+        mLayout.addOnAttachStateChangeListener(mOnAttachStateChangeListener);
+        mLayout.setBackground(mBackgroundDrawable);
+        mDismissView.setOnClickListener(v -> hide(true));
+
+        if (RESET_PREFS_FOR_DEBUG) {
+            Prefs.putBoolean(mContext, Prefs.Key.HAS_SWIPED_UP_FOR_RECENTS, false);
+            Prefs.putInt(mContext, Prefs.Key.NUM_APPS_LAUNCHED, 0);
+        }
+    }
+
+    public void onConnectedToLauncher(ComponentName launcherComponent) {
+        // TODO: re-enable this once we have the proper callback for when a swipe up was performed.
+        final boolean disableOnboarding = true;
+        if (disableOnboarding) {
+            return;
+        }
+        mLauncherComponent = launcherComponent;
+        boolean alreadyLearnedSwipeUpForRecents = Prefs.getBoolean(mContext,
+                Prefs.Key.HAS_SWIPED_UP_FOR_RECENTS, false);
+        if (!mTaskListenerRegistered && !alreadyLearnedSwipeUpForRecents) {
+            ActivityManagerWrapper.getInstance().registerTaskStackListener(mTaskListener);
+            mTaskListenerRegistered = true;
+        }
+    }
+
+    public void onDisconnectedFromLauncher() {
+        if (mTaskListenerRegistered) {
+            ActivityManagerWrapper.getInstance().unregisterTaskStackListener(mTaskListener);
+            mTaskListenerRegistered = false;
+        }
+        hide(false);
+    }
+
+    public void onConfigurationChanged(Configuration newConfiguration) {
+        if (newConfiguration.orientation != Configuration.ORIENTATION_PORTRAIT) {
+            hide(false);
+        }
+    }
+
+    public void show() {
+        // Only show in portrait.
+        int orientation = mContext.getResources().getConfiguration().orientation;
+        if (!mLayoutAttachedToWindow && orientation == Configuration.ORIENTATION_PORTRAIT) {
+            mLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
+            mWindowManager.addView(mLayout, getWindowLayoutParams());
+            int layoutHeight = mLayout.getHeight();
+            if (layoutHeight == 0) {
+                mLayout.measure(View.MeasureSpec.UNSPECIFIED, View.MeasureSpec.UNSPECIFIED);
+                layoutHeight = mLayout.getMeasuredHeight();
+            }
+            mLayout.setTranslationY(layoutHeight);
+            mLayout.setAlpha(0);
+            mLayout.animate()
+                    .translationY(0)
+                    .alpha(1f)
+                    .withLayer()
+                    .setStartDelay(SHOW_DELAY_MS)
+                    .setDuration(SHOW_HIDE_DURATION_MS)
+                    .setInterpolator(new DecelerateInterpolator())
+                    .start();
+        }
+    }
+
+    public void hide(boolean animate) {
+        if (mLayoutAttachedToWindow) {
+            if (animate) {
+                mLayout.animate()
+                        .translationY(mLayout.getHeight())
+                        .alpha(0f)
+                        .withLayer()
+                        .setDuration(SHOW_HIDE_DURATION_MS)
+                        .setInterpolator(new AccelerateInterpolator())
+                        .withEndAction(() -> mWindowManager.removeView(mLayout))
+                        .start();
+            } else {
+                mWindowManager.removeView(mLayout);
+            }
+        }
+    }
+
+    public void setContentDarkIntensity(float contentDarkIntensity) {
+        boolean backgroundIsLight = contentDarkIntensity > 0.5f;
+        if (backgroundIsLight != mBackgroundIsLight) {
+            mBackgroundIsLight = backgroundIsLight;
+            mBackgroundDrawable.setColor(mBackgroundIsLight
+                    ? mLightBackgroundColor : mDarkBackgroundColor);
+            int contentColor = mBackgroundIsLight ? mDarkContentColor : mLightContentColor;
+            mTextView.setTextColor(contentColor);
+            mTextView.getCompoundDrawables()[3].setColorFilter(contentColor,
+                    PorterDuff.Mode.SRC_IN);
+            mDismissView.setColorFilter(contentColor);
+            mDismissView.setBackground(mBackgroundIsLight ? mDarkRipple : mLightRipple);
+        }
+    }
+
+    private WindowManager.LayoutParams getWindowLayoutParams() {
+        int flags = WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN
+                | WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR
+                | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
+        final WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT,
+                WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG,
+                flags,
+                PixelFormat.TRANSLUCENT);
+        lp.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
+        lp.setTitle("SwipeUpOnboarding");
+        lp.gravity = Gravity.BOTTOM;
+        return lp;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/settings/BrightnessController.java b/packages/SystemUI/src/com/android/systemui/settings/BrightnessController.java
index d3f997a..15e92f4 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/BrightnessController.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/BrightnessController.java
@@ -16,9 +16,11 @@
 
 package com.android.systemui.settings;
 
+import android.animation.ValueAnimator;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.database.ContentObserver;
+import android.hardware.display.DisplayManager;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Handler;
@@ -29,6 +31,7 @@
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
+import android.os.UserManager;
 import android.provider.Settings;
 import android.service.vr.IVrManager;
 import android.service.vr.IVrStateCallbacks;
@@ -37,6 +40,7 @@
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settingslib.RestrictedLockUtils;
 import com.android.systemui.Dependency;
 
 import java.util.ArrayList;
@@ -45,11 +49,7 @@
     private static final String TAG = "StatusBar.BrightnessController";
     private static final boolean SHOW_AUTOMATIC_ICON = false;
 
-    /**
-     * {@link android.provider.Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ} uses the range [-1, 1].
-     * Using this factor, it is converted to [0, BRIGHTNESS_ADJ_RESOLUTION] for the SeekBar.
-     */
-    private static final float BRIGHTNESS_ADJ_RESOLUTION = 2048;
+    private static final int SLIDER_ANIMATION_DURATION = 3000;
 
     private static final int MSG_UPDATE_ICON = 0;
     private static final int MSG_UPDATE_SLIDER = 1;
@@ -67,7 +67,7 @@
     private final ImageView mIcon;
     private final ToggleSlider mControl;
     private final boolean mAutomaticAvailable;
-    private final IPowerManager mPower;
+    private final DisplayManager mDisplayManager;
     private final CurrentUserTracker mUserTracker;
     private final IVrManager mVrManager;
 
@@ -81,6 +81,9 @@
     private volatile boolean mIsVrModeEnabled;
     private boolean mListening;
     private boolean mExternalChange;
+    private boolean mControlInitialized;
+
+    private ValueAnimator mSliderAnimator;
 
     public interface BrightnessStateChangeCallback {
         public void onBrightnessLevelChanged();
@@ -95,8 +98,6 @@
                 Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS);
         private final Uri BRIGHTNESS_FOR_VR_URI =
                 Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS_FOR_VR);
-        private final Uri BRIGHTNESS_ADJ_URI =
-                Settings.System.getUriFor(Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ);
 
         public BrightnessObserver(Handler handler) {
             super(handler);
@@ -114,12 +115,10 @@
             if (BRIGHTNESS_MODE_URI.equals(uri)) {
                 mBackgroundHandler.post(mUpdateModeRunnable);
                 mBackgroundHandler.post(mUpdateSliderRunnable);
-            } else if (BRIGHTNESS_URI.equals(uri) && !mAutomatic) {
+            } else if (BRIGHTNESS_URI.equals(uri)) {
                 mBackgroundHandler.post(mUpdateSliderRunnable);
             } else if (BRIGHTNESS_FOR_VR_URI.equals(uri)) {
                 mBackgroundHandler.post(mUpdateSliderRunnable);
-            } else if (BRIGHTNESS_ADJ_URI.equals(uri) && mAutomatic) {
-                mBackgroundHandler.post(mUpdateSliderRunnable);
             } else {
                 mBackgroundHandler.post(mUpdateModeRunnable);
                 mBackgroundHandler.post(mUpdateSliderRunnable);
@@ -141,9 +140,6 @@
             cr.registerContentObserver(
                     BRIGHTNESS_FOR_VR_URI,
                     false, this, UserHandle.USER_ALL);
-            cr.registerContentObserver(
-                    BRIGHTNESS_ADJ_URI,
-                    false, this, UserHandle.USER_ALL);
         }
 
         public void stopObserving() {
@@ -214,12 +210,6 @@
                 mHandler.obtainMessage(MSG_UPDATE_SLIDER,
                         mMaximumBacklightForVr - mMinimumBacklightForVr,
                         value - mMinimumBacklightForVr).sendToTarget();
-            } else if (mAutomatic) {
-                float value = Settings.System.getFloatForUser(mContext.getContentResolver(),
-                        Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0,
-                        UserHandle.USER_CURRENT);
-                mHandler.obtainMessage(MSG_UPDATE_SLIDER, (int) BRIGHTNESS_ADJ_RESOLUTION,
-                        (int) ((value + 1) * BRIGHTNESS_ADJ_RESOLUTION / 2f)).sendToTarget();
             } else {
                 int value;
                 value = Settings.System.getIntForUser(mContext.getContentResolver(),
@@ -250,7 +240,7 @@
                         break;
                     case MSG_UPDATE_SLIDER:
                         mControl.setMax(msg.arg1);
-                        mControl.setValue(msg.arg2);
+                        animateSliderTo(msg.arg2);
                         break;
                     case MSG_SET_CHECKED:
                         mControl.setChecked(msg.arg1 != 0);
@@ -295,8 +285,7 @@
 
         mAutomaticAvailable = context.getResources().getBoolean(
                 com.android.internal.R.bool.config_automatic_brightness_available);
-        mPower = IPowerManager.Stub.asInterface(ServiceManager.getService(
-                Context.POWER_SERVICE));
+        mDisplayManager = context.getSystemService(DisplayManager.class);
         mVrManager = IVrManager.Stub.asInterface(ServiceManager.getService(
                 Context.VR_SERVICE));
     }
@@ -356,6 +345,10 @@
         updateIcon(mAutomatic);
         if (mExternalChange) return;
 
+        if (mSliderAnimator != null) {
+            mSliderAnimator.cancel();
+        }
+
         if (mIsVrModeEnabled) {
             final int val = value + mMinimumBacklightForVr;
             if (stopTracking) {
@@ -371,7 +364,7 @@
                         }
                     });
             }
-        } else if (!mAutomatic) {
+        } else {
             final int val = value + mMinimumBacklight;
             if (stopTracking) {
                 MetricsLogger.action(mContext, MetricsEvent.ACTION_BRIGHTNESS, val);
@@ -386,21 +379,6 @@
                         }
                     });
             }
-        } else {
-            final float adj = value / (BRIGHTNESS_ADJ_RESOLUTION / 2f) - 1;
-            if (stopTracking) {
-                MetricsLogger.action(mContext, MetricsEvent.ACTION_BRIGHTNESS_AUTO, value);
-            }
-            setBrightnessAdj(adj);
-            if (!tracking) {
-                AsyncTask.execute(new Runnable() {
-                    public void run() {
-                        Settings.System.putFloatForUser(mContext.getContentResolver(),
-                                Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, adj,
-                                UserHandle.USER_CURRENT);
-                    }
-                });
-            }
         }
 
         for (BrightnessStateChangeCallback cb : mChangeCallbacks) {
@@ -408,6 +386,18 @@
         }
     }
 
+    public void checkRestrictionAndSetEnabled() {
+        mBackgroundHandler.post(new Runnable() {
+            @Override
+            public void run() {
+                ((ToggleSliderView)mControl).setEnforcedAdmin(
+                        RestrictedLockUtils.checkIfRestrictionEnforced(mContext,
+                                UserManager.DISALLOW_CONFIG_BRIGHTNESS,
+                                mUserTracker.getCurrentUserId()));
+            }
+        });
+    }
+
     private void setMode(int mode) {
         Settings.System.putIntForUser(mContext.getContentResolver(),
                 Settings.System.SCREEN_BRIGHTNESS_MODE, mode,
@@ -415,17 +405,11 @@
     }
 
     private void setBrightness(int brightness) {
-        try {
-            mPower.setTemporaryScreenBrightnessSettingOverride(brightness);
-        } catch (RemoteException ex) {
-        }
+        mDisplayManager.setTemporaryBrightness(brightness);
     }
 
     private void setBrightnessAdj(float adj) {
-        try {
-            mPower.setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(adj);
-        } catch (RemoteException ex) {
-        }
+        mDisplayManager.setTemporaryAutoBrightnessAdjustment(adj);
     }
 
     private void updateIcon(boolean automatic) {
@@ -442,4 +426,23 @@
             mBackgroundHandler.post(mUpdateSliderRunnable);
         }
     }
+
+    private void animateSliderTo(int target) {
+        if (!mControlInitialized) {
+            // Don't animate the first value since it's default state isn't meaningful to users.
+            mControl.setValue(target);
+            mControlInitialized = true;
+        }
+        if (mSliderAnimator != null && mSliderAnimator.isStarted()) {
+            mSliderAnimator.cancel();
+        }
+        mSliderAnimator = ValueAnimator.ofInt(mControl.getValue(), target);
+        mSliderAnimator.addUpdateListener((ValueAnimator animation) -> {
+            mExternalChange = true;
+            mControl.setValue((int)animation.getAnimatedValue());
+            mExternalChange = false;
+        });
+        mSliderAnimator.setDuration(SLIDER_ANIMATION_DURATION);
+        mSliderAnimator.start();
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/settings/ToggleSeekBar.java b/packages/SystemUI/src/com/android/systemui/settings/ToggleSeekBar.java
index 722aba5..8ed4c75 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/ToggleSeekBar.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/ToggleSeekBar.java
@@ -17,14 +17,21 @@
 package com.android.systemui.settings;
 
 import android.content.Context;
+import android.content.Intent;
 import android.util.AttributeSet;
 import android.view.MotionEvent;
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.widget.SeekBar;
 
+import com.android.settingslib.RestrictedLockUtils;
+import com.android.systemui.Dependency;
+import com.android.systemui.plugins.ActivityStarter;
+
 public class ToggleSeekBar extends SeekBar {
     private String mAccessibilityLabel;
 
+    private RestrictedLockUtils.EnforcedAdmin mEnforcedAdmin = null;
+
     public ToggleSeekBar(Context context) {
         super(context);
     }
@@ -39,6 +46,12 @@
 
     @Override
     public boolean onTouchEvent(MotionEvent event) {
+        if (mEnforcedAdmin != null) {
+            Intent intent = RestrictedLockUtils.getShowAdminSupportDetailsIntent(
+                    mContext, mEnforcedAdmin);
+            Dependency.get(ActivityStarter.class).postStartActivityDismissingKeyguard(intent, 0);
+            return true;
+        }
         if (!isEnabled()) {
             setEnabled(true);
         }
@@ -57,4 +70,8 @@
             info.setText(mAccessibilityLabel);
         }
     }
+
+    public void setEnforcedAdmin(RestrictedLockUtils.EnforcedAdmin admin) {
+        mEnforcedAdmin = admin;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/settings/ToggleSlider.java b/packages/SystemUI/src/com/android/systemui/settings/ToggleSlider.java
index 62abf3d..135f89d 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/ToggleSlider.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/ToggleSlider.java
@@ -28,4 +28,5 @@
     default boolean isChecked() { return false; }
     void setMax(int max);
     void setValue(int value);
+    int getValue();
 }
diff --git a/packages/SystemUI/src/com/android/systemui/settings/ToggleSliderView.java b/packages/SystemUI/src/com/android/systemui/settings/ToggleSliderView.java
index 5b234e9..90744a6 100644
--- a/packages/SystemUI/src/com/android/systemui/settings/ToggleSliderView.java
+++ b/packages/SystemUI/src/com/android/systemui/settings/ToggleSliderView.java
@@ -29,6 +29,7 @@
 import android.widget.SeekBar.OnSeekBarChangeListener;
 import android.widget.TextView;
 
+import com.android.settingslib.RestrictedLockUtils;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.policy.BrightnessMirrorController;
 
@@ -95,6 +96,12 @@
         }
     }
 
+    public void setEnforcedAdmin(RestrictedLockUtils.EnforcedAdmin admin) {
+        mToggle.setEnabled(admin == null);
+        mSlider.setEnabled(admin == null);
+        mSlider.setEnforcedAdmin(admin);
+    }
+
     public void setOnChangedListener(Listener l) {
         mListener = l;
     }
@@ -126,6 +133,11 @@
     }
 
     @Override
+    public int getValue() {
+        return mSlider.getProgress();
+    }
+
+    @Override
     public boolean dispatchTouchEvent(MotionEvent ev) {
         if (mMirror != null) {
             MotionEvent copy = ev.copy();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java b/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
index e59c703..eb5619b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/ActivatableNotificationView.java
@@ -122,7 +122,7 @@
     private Interpolator mCurrentAppearInterpolator;
     private Interpolator mCurrentAlphaInterpolator;
 
-    private NotificationBackgroundView mBackgroundNormal;
+    protected NotificationBackgroundView mBackgroundNormal;
     private NotificationBackgroundView mBackgroundDimmed;
     private ObjectAnimator mBackgroundAnimator;
     private RectF mAppearAnimationRect = new RectF();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableNotificationRow.java b/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableNotificationRow.java
index 5f4854a..1056ecc 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableNotificationRow.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableNotificationRow.java
@@ -16,6 +16,7 @@
 
 package com.android.systemui.statusbar;
 
+import static com.android.systemui.statusbar.notification.ActivityLaunchAnimator.ExpandAnimationParameters;
 import static com.android.systemui.statusbar.notification.NotificationInflater.InflationCallback;
 
 import android.animation.Animator;
@@ -37,6 +38,7 @@
 import android.service.notification.StatusBarNotification;
 import android.util.AttributeSet;
 import android.util.FloatProperty;
+import android.util.MathUtils;
 import android.util.Property;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -67,6 +69,7 @@
 import com.android.systemui.plugins.statusbar.NotificationMenuRowPlugin.MenuItem;
 import com.android.systemui.statusbar.NotificationGuts.GutsContent;
 import com.android.systemui.statusbar.notification.AboveShelfChangedListener;
+import com.android.systemui.statusbar.notification.ActivityLaunchAnimator;
 import com.android.systemui.statusbar.notification.HybridNotificationView;
 import com.android.systemui.statusbar.notification.NotificationInflater;
 import com.android.systemui.statusbar.notification.NotificationUtils;
@@ -75,6 +78,7 @@
 import com.android.systemui.statusbar.phone.NotificationGroupManager;
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
+import com.android.systemui.statusbar.stack.AmbientState;
 import com.android.systemui.statusbar.stack.AnimationProperties;
 import com.android.systemui.statusbar.stack.ExpandableViewState;
 import com.android.systemui.statusbar.stack.NotificationChildrenContainer;
@@ -113,6 +117,7 @@
     private int mNotificationMaxHeight;
     private int mNotificationAmbientHeight;
     private int mIncreasedPaddingBetweenElements;
+    private int mNotificationLaunchHeight;
     private boolean mMustStayOnScreen;
 
     /** Does this row contain layouts that can adapt to row expansion */
@@ -172,6 +177,7 @@
     private boolean mIsSystemChildExpanded;
     private boolean mIsPinned;
     private FalsingManager mFalsingManager;
+    private boolean mExpandAnimationRunning;
     private AboveShelfChangedListener mAboveShelfChangedListener;
     private HeadsUpManager mHeadsUpManager;
     private View mHelperButton;
@@ -270,6 +276,7 @@
     private float mTranslationWhenRemoved;
     private boolean mWasChildInGroupWhenRemoved;
     private int mNotificationColorAmbient;
+    private NotificationViewState mNotificationViewState;
 
     @Override
     public boolean isGroupExpansionChanging() {
@@ -363,6 +370,14 @@
         mNotificationInflater.inflateNotificationViews();
     }
 
+    @Override
+    public void setPressed(boolean pressed) {
+        if (isOnKeyguard() || mEntry.notification.getNotification().contentIntent == null) {
+            // We're dropping the ripple if we have a collapse / launch animation
+            super.setPressed(pressed);
+        }
+    }
+
     public void onNotificationUpdated() {
         for (NotificationContentView l : mLayouts) {
             l.onNotificationUpdated(mEntry);
@@ -1096,9 +1111,19 @@
         return mGroupParentWhenDismissed;
     }
 
-    public void performDismiss() {
-        if (mOnDismissRunnable != null) {
-            mOnDismissRunnable.run();
+    public void performDismiss(boolean fromAccessibility) {
+        if (mGroupManager.isOnlyChildInGroup(getStatusBarNotification())) {
+            ExpandableNotificationRow groupSummary =
+                    mGroupManager.getLogicalGroupSummary(getStatusBarNotification());
+            if (groupSummary.isClearable()) {
+                groupSummary.performDismiss(fromAccessibility);
+            }
+        }
+        setDismissed(true, fromAccessibility);
+        if (isClearable()) {
+            if (mOnDismissRunnable != null) {
+                mOnDismissRunnable.run();
+            }
         }
     }
 
@@ -1159,6 +1184,9 @@
     }
 
     private void updateContentTransformation() {
+        if (mExpandAnimationRunning) {
+            return;
+        }
         float contentAlpha;
         float translationY = -mContentTransformationAmount * mIconTransformContentShift;
         if (mIsLastChild) {
@@ -1440,6 +1468,11 @@
         mMenuRow.resetMenu();
     }
 
+    public CharSequence getActiveRemoteInputText() {
+        return mPrivateLayout.getActiveRemoteInputText();
+    }
+
+
     public void animateTranslateNotification(final float leftTarget) {
         if (mTranslateAnim != null) {
             mTranslateAnim.cancel();
@@ -1527,10 +1560,13 @@
     }
 
     private void updateChildrenVisibility() {
-        mPrivateLayout.setVisibility(!shouldShowPublic() && !mIsSummaryWithChildren ? VISIBLE
-                : INVISIBLE);
+        boolean hideContentWhileLaunching = mExpandAnimationRunning && mGuts != null
+                && mGuts.isExposed();
+        mPrivateLayout.setVisibility(!shouldShowPublic() && !mIsSummaryWithChildren
+                && !hideContentWhileLaunching ? VISIBLE : INVISIBLE);
         if (mChildrenContainer != null) {
-            mChildrenContainer.setVisibility(!shouldShowPublic() && mIsSummaryWithChildren ? VISIBLE
+            mChildrenContainer.setVisibility(!shouldShowPublic() && mIsSummaryWithChildren
+                    && !hideContentWhileLaunching ? VISIBLE
                     : INVISIBLE);
         }
         // The limits might have changed if the view suddenly became a group or vice versa
@@ -1569,6 +1605,62 @@
         updateShelfIconColor();
     }
 
+    public void applyExpandAnimationParams(ExpandAnimationParameters params) {
+        if (params == null) {
+            return;
+        }
+        setTranslationY(params.getTop());
+        float zProgress = Interpolators.FAST_OUT_SLOW_IN.getInterpolation(
+                params.getProgress(0, 50));
+        float translationZ = MathUtils.lerp(params.getStartTranslationZ(),
+                mNotificationLaunchHeight,
+                zProgress);
+        setTranslationZ(translationZ);
+        setActualHeight(params.getHeight());
+        mBackgroundNormal.setExpandAnimationParams(params);
+    }
+
+    public void setExpandAnimationRunning(boolean expandAnimationRunning) {
+        if (expandAnimationRunning) {
+            View contentView;
+            if (mIsSummaryWithChildren) {
+                contentView =  mChildrenContainer;
+            } else {
+                contentView = getShowingLayout();
+            }
+            if (mGuts != null && mGuts.isExposed()) {
+                contentView = mGuts;
+            }
+            contentView.animate()
+                    .alpha(0f)
+                    .setDuration(ActivityLaunchAnimator.ANIMATION_DURATION_FADE_CONTENT)
+                    .setInterpolator(Interpolators.ALPHA_OUT);
+            setAboveShelf(true);
+            mExpandAnimationRunning = true;
+            mNotificationViewState.cancelAnimations(this);
+            mNotificationLaunchHeight = AmbientState.getNotificationLaunchHeight(getContext());
+        } else {
+            mExpandAnimationRunning = false;
+            setAboveShelf(isAboveShelf());
+            if (mGuts != null) {
+                mGuts.setAlpha(1.0f);
+            }
+        }
+        updateChildrenVisibility();
+        updateClipping();
+        mBackgroundNormal.setExpandAnimationRunning(expandAnimationRunning);
+    }
+
+    @Override
+    protected boolean shouldClipToActualHeight() {
+        return super.shouldClipToActualHeight() && !mExpandAnimationRunning;
+    }
+
+    @Override
+    public boolean isExpandAnimationRunning() {
+        return mExpandAnimationRunning;
+    }
+
     /**
      * Tap sounds should not be played when we're unlocking.
      * Doing so would cause audio collision and the system would feel unpolished.
@@ -2142,6 +2234,9 @@
 
     @Override
     public void setClipBottomAmount(int clipBottomAmount) {
+        if (mExpandAnimationRunning) {
+            return;
+        }
         if (clipBottomAmount != mClipBottomAmount) {
             super.setClipBottomAmount(clipBottomAmount);
             for (NotificationContentView l : mLayouts) {
@@ -2328,8 +2423,7 @@
         }
         switch (action) {
             case AccessibilityNodeInfo.ACTION_DISMISS:
-                NotificationStackScrollLayout.performDismiss(this, mGroupManager,
-                        true /* fromAccessibility */);
+                performDismiss(true /* fromAccessibility */);
                 return true;
             case AccessibilityNodeInfo.ACTION_COLLAPSE:
             case AccessibilityNodeInfo.ACTION_EXPAND:
@@ -2352,13 +2446,15 @@
 
     @Override
     public ExpandableViewState createNewViewState(StackScrollState stackScrollState) {
-        return new NotificationViewState(stackScrollState);
+        mNotificationViewState = new NotificationViewState(stackScrollState);
+        return mNotificationViewState;
     }
 
     @Override
     public boolean isAboveShelf() {
         return !isOnKeyguard()
-                && (mIsPinned || mHeadsupDisappearRunning || (mIsHeadsUp && mAboveShelf));
+                && (mIsPinned || mHeadsupDisappearRunning || (mIsHeadsUp && mAboveShelf)
+                || mExpandAnimationRunning);
     }
 
     public void setShowAmbient(boolean showAmbient) {
@@ -2444,9 +2540,12 @@
 
         @Override
         public void applyToView(View view) {
-            super.applyToView(view);
             if (view instanceof ExpandableNotificationRow) {
                 ExpandableNotificationRow row = (ExpandableNotificationRow) view;
+                if (row.isExpandAnimationRunning()) {
+                    return;
+                }
+                super.applyToView(view);
                 row.applyChildrenState(mOverallState);
             }
         }
@@ -2464,9 +2563,12 @@
 
         @Override
         public void animateTo(View child, AnimationProperties properties) {
-            super.animateTo(child, properties);
             if (child instanceof ExpandableNotificationRow) {
                 ExpandableNotificationRow row = (ExpandableNotificationRow) child;
+                if (row.isExpandAnimationRunning()) {
+                    return;
+                }
+                super.animateTo(child, properties);
                 row.startChildAnimation(mOverallState, properties);
             }
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableView.java b/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableView.java
index eafa825..1496a41 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/ExpandableView.java
@@ -151,6 +151,10 @@
         return mActualHeight;
     }
 
+    public boolean isExpandAnimationRunning() {
+        return false;
+    }
+
     /**
      * @return The maximum height of this notification.
      */
@@ -375,8 +379,8 @@
         return false;
     }
 
-    private void updateClipping() {
-        if (mClipToActualHeight) {
+    protected void updateClipping() {
+        if (mClipToActualHeight && shouldClipToActualHeight()) {
             int top = getClipTopAmount();
             mClipRect.set(0, top, getWidth(), Math.max(getActualHeight() + getExtraBottomPadding()
                     - mClipBottomAmount, top));
@@ -386,6 +390,10 @@
         }
     }
 
+    protected boolean shouldClipToActualHeight() {
+        return true;
+    }
+
     public void setClipToActualHeight(boolean clipToActualHeight) {
         mClipToActualHeight = clipToActualHeight;
         updateClipping();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
index 45b35d0..d6beb7f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationBackgroundView.java
@@ -20,6 +20,7 @@
 import android.content.res.ColorStateList;
 import android.graphics.Canvas;
 import android.graphics.PorterDuff;
+import android.graphics.PorterDuffXfermode;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.GradientDrawable;
 import android.graphics.drawable.LayerDrawable;
@@ -27,7 +28,9 @@
 import android.util.AttributeSet;
 import android.view.View;
 
+import com.android.systemui.Interpolators;
 import com.android.systemui.R;
+import com.android.systemui.statusbar.notification.ActivityLaunchAnimator;
 
 /**
  * A view that can be used for both the dimmed and normal background of an notification.
@@ -44,6 +47,9 @@
     private boolean mBottomIsRounded;
     private int mBackgroundTop;
     private boolean mBottomAmountClips = true;
+    private boolean mExpandAnimationRunning;
+    private float mActualWidth;
+    private int mDrawableAlpha = 255;
 
     public NotificationBackgroundView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -53,9 +59,12 @@
 
     @Override
     protected void onDraw(Canvas canvas) {
-        if (mClipTopAmount + mClipBottomAmount < mActualHeight - mBackgroundTop) {
+        if (mClipTopAmount + mClipBottomAmount < mActualHeight - mBackgroundTop
+                || mExpandAnimationRunning) {
             canvas.save();
-            canvas.clipRect(0, mClipTopAmount, getWidth(), mActualHeight - mClipBottomAmount);
+            if (!mExpandAnimationRunning) {
+                canvas.clipRect(0, mClipTopAmount, getWidth(), mActualHeight - mClipBottomAmount);
+            }
             draw(canvas, mBackground);
             canvas.restore();
         }
@@ -64,10 +73,16 @@
     private void draw(Canvas canvas, Drawable drawable) {
         if (drawable != null) {
             int bottom = mActualHeight;
-            if (mBottomIsRounded && mBottomAmountClips) {
+            if (mBottomIsRounded && mBottomAmountClips && !mExpandAnimationRunning) {
                 bottom -= mClipBottomAmount;
             }
-            drawable.setBounds(0, mBackgroundTop, getWidth(), bottom);
+            int left = 0;
+            int right = getWidth();
+            if (mExpandAnimationRunning) {
+                left = (int) ((getWidth() - mActualWidth) / 2.0f);
+                right = (int) (left + mActualWidth);
+            }
+            drawable.setBounds(left, mBackgroundTop, right, bottom);
             drawable.draw(canvas);
         }
     }
@@ -133,6 +148,9 @@
     }
 
     public void setActualHeight(int actualHeight) {
+        if (mExpandAnimationRunning) {
+            return;
+        }
         mActualHeight = actualHeight;
         invalidate();
     }
@@ -170,6 +188,10 @@
     }
 
     public void setDrawableAlpha(int drawableAlpha) {
+        mDrawableAlpha = drawableAlpha;
+        if (mExpandAnimationRunning) {
+            return;
+        }
         mBackground.setAlpha(drawableAlpha);
     }
 
@@ -208,4 +230,29 @@
         mBackgroundTop = backgroundTop;
         invalidate();
     }
+
+    public void setExpandAnimationParams(ActivityLaunchAnimator.ExpandAnimationParameters params) {
+        mActualHeight = params.getHeight();
+        mActualWidth = params.getWidth();
+        float alphaProgress = Interpolators.ALPHA_IN.getInterpolation(
+                params.getProgress(
+                        ActivityLaunchAnimator.ANIMATION_DURATION_FADE_CONTENT /* delay */,
+                        ActivityLaunchAnimator.ANIMATION_DURATION_FADE_APP /* duration */));
+        mBackground.setAlpha((int) (mDrawableAlpha * (1.0f - alphaProgress)));
+        invalidate();
+    }
+
+    public void setExpandAnimationRunning(boolean running) {
+        mExpandAnimationRunning = running;
+        if (mBackground instanceof LayerDrawable) {
+            GradientDrawable gradientDrawable =
+                    (GradientDrawable) ((LayerDrawable) mBackground).getDrawable(0);
+            gradientDrawable.setXfermode(
+                    running ? new PorterDuffXfermode(PorterDuff.Mode.SRC) : null);
+        }
+        if (!mExpandAnimationRunning) {
+            setDrawableAlpha(mDrawableAlpha);
+        }
+        invalidate();
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationContentView.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationContentView.java
index a4c17e3..e811ed3 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationContentView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationContentView.java
@@ -1563,4 +1563,14 @@
         }
         return visibleWrapper.shouldClipToRounding(topRounded, bottomRounded);
     }
+
+    public CharSequence getActiveRemoteInputText() {
+        if (mExpandedRemoteInput != null && mExpandedRemoteInput.isActive()) {
+            return mExpandedRemoteInput.getText();
+        }
+        if (mHeadsUpRemoteInput != null && mHeadsUpRemoteInput.isActive()) {
+            return mHeadsUpRemoteInput.getText();
+        }
+        return null;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationGutsManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationGutsManager.java
index 9d8892d..1aaa3b2 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationGutsManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationGutsManager.java
@@ -15,6 +15,9 @@
  */
 package com.android.systemui.statusbar;
 
+import static android.service.notification.NotificationListenerService.Ranking
+        .USER_SENTIMENT_NEGATIVE;
+
 import android.app.INotificationManager;
 import android.app.NotificationChannel;
 import android.content.Context;
@@ -41,7 +44,6 @@
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
-import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
@@ -133,14 +135,14 @@
      * channel.
      */
     private void startAppNotificationSettingsActivity(String packageName, final int appUid,
-            final NotificationChannel channel) {
+            final NotificationChannel channel, ExpandableNotificationRow row) {
         final Intent intent = new Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS);
         intent.putExtra(Settings.EXTRA_APP_PACKAGE, packageName);
         intent.putExtra(Settings.EXTRA_APP_UID, appUid);
         if (channel != null) {
             intent.putExtra(EXTRA_FRAGMENT_ARG_KEY, channel.getId());
         }
-        mPresenter.startNotificationGutsIntent(intent, appUid);
+        mPresenter.startNotificationGutsIntent(intent, appUid, row);
     }
 
     public void bindGuts(final ExpandableNotificationRow row) {
@@ -198,14 +200,14 @@
                     mMetricsLogger.action(MetricsProto.MetricsEvent.ACTION_NOTE_INFO);
                     guts.resetFalsingCheck();
                     mOnSettingsClickListener.onClick(sbn.getKey());
-                    startAppNotificationSettingsActivity(pkg, appUid, channel);
+                    startAppNotificationSettingsActivity(pkg, appUid, channel, row);
                 };
             }
             final NotificationInfo.OnAppSettingsClickListener onAppSettingsClick = (View v,
                     Intent intent) -> {
                 mMetricsLogger.action(MetricsProto.MetricsEvent.ACTION_APP_NOTE_SETTINGS);
                 guts.resetFalsingCheck();
-                mPresenter.startNotificationGutsIntent(intent, sbn.getUid());
+                mPresenter.startNotificationGutsIntent(intent, sbn.getUid(), row);
             };
             final View.OnClickListener onDoneClick = (View v) -> {
                 saveAndCloseNotificationMenu(row, guts, v);
@@ -231,7 +233,8 @@
             try {
                 info.bindNotification(pmUser, iNotificationManager, pkg, row.getEntry().channel,
                         channels.size(), sbn, mCheckSaveListener, onSettingsClick,
-                        onAppSettingsClick, mNonBlockablePkgs);
+                        onAppSettingsClick, mNonBlockablePkgs,
+                        row.getEntry().userSentiment == USER_SENTIMENT_NEGATIVE);
             } catch (RemoteException e) {
                 Log.e(TAG, e.toString());
             }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
index 6279fdc..735f4fd 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationInfo.java
@@ -79,6 +79,7 @@
     private OnSettingsClickListener mOnSettingsClickListener;
     private OnAppSettingsClickListener mAppSettingsClickListener;
     private NotificationGuts mGutsContainer;
+    private boolean mNegativeUserSentiment;
 
     private OnClickListener mOnKeepShowing = v -> {
         closeControls(v);
@@ -122,6 +123,22 @@
             final OnAppSettingsClickListener onAppSettingsClick,
             final Set<String> nonBlockablePkgs)
             throws RemoteException {
+        bindNotification(pm, iNotificationManager, pkg, notificationChannel, numChannels, sbn,
+                checkSaveListener, onSettingsClick, onAppSettingsClick, nonBlockablePkgs,
+                false /* negative sentiment */);
+    }
+
+    public void bindNotification(final PackageManager pm,
+            final INotificationManager iNotificationManager,
+            final String pkg,
+            final NotificationChannel notificationChannel,
+            final int numChannels,
+            final StatusBarNotification sbn,
+            final CheckSaveListener checkSaveListener,
+            final OnSettingsClickListener onSettingsClick,
+            final OnAppSettingsClickListener onAppSettingsClick,
+            final Set<String> nonBlockablePkgs,
+            boolean negativeUserSentiment)  throws RemoteException {
         mINotificationManager = iNotificationManager;
         mPkg = pkg;
         mNumNotificationChannels = numChannels;
@@ -133,6 +150,7 @@
         mOnSettingsClickListener = onSettingsClick;
         mSingleNotificationChannel = notificationChannel;
         mStartingUserImportance = mChosenImportance = mSingleNotificationChannel.getImportance();
+        mNegativeUserSentiment = negativeUserSentiment;
 
         int numTotalChannels = mINotificationManager.getNumNotificationChannelsForPackage(
                 pkg, mAppUid, false /* includeDeleted */);
@@ -227,27 +245,30 @@
     }
 
     private void bindPrompt() {
-        final TextView channelName = findViewById(R.id.channel_name);
         final TextView blockPrompt = findViewById(R.id.block_prompt);
+        bindName();
         if (mNonblockable) {
-            if (mIsSingleDefaultChannel || mNumNotificationChannels > 1) {
-                channelName.setVisibility(View.GONE);
-            } else {
-                channelName.setText(mSingleNotificationChannel.getName());
-            }
-
             blockPrompt.setText(R.string.notification_unblockable_desc);
         } else {
-            if (mIsSingleDefaultChannel || mNumNotificationChannels > 1) {
-                channelName.setVisibility(View.GONE);
+            if (mNegativeUserSentiment) {
+                blockPrompt.setText(R.string.inline_blocking_helper);
+            }  else if (mIsSingleDefaultChannel || mNumNotificationChannels > 1) {
                 blockPrompt.setText(R.string.inline_keep_showing_app);
             } else {
-                channelName.setText(mSingleNotificationChannel.getName());
                 blockPrompt.setText(R.string.inline_keep_showing);
             }
         }
     }
 
+    private void bindName() {
+        final TextView channelName = findViewById(R.id.channel_name);
+        if (mIsSingleDefaultChannel || mNumNotificationChannels > 1) {
+            channelName.setVisibility(View.GONE);
+        } else {
+            channelName.setText(mSingleNotificationChannel.getName());
+        }
+    }
+
     private boolean hasImportanceChanged() {
         return mSingleNotificationChannel != null && mStartingUserImportance != mChosenImportance;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationListContainer.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationListContainer.java
index 43be44d..0c19ec0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationListContainer.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationListContainer.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar;
 
+import static com.android.systemui.statusbar.notification.ActivityLaunchAnimator.ExpandAnimationParameters;
+
 import android.view.View;
 import android.view.ViewGroup;
 
@@ -179,4 +181,11 @@
      * @return true if has pulsing notifications
      */
     boolean hasPulsingNotifications();
+
+    /**
+     * Apply parameters of the expand animation to the layout
+     */
+    default void applyExpandAnimationParams(ExpandAnimationParameters params) {}
+
+    default void setExpandingNotification(ExpandableNotificationRow row) {}
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationPresenter.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationPresenter.java
index 12641a0..5263bb4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationPresenter.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationPresenter.java
@@ -16,9 +16,7 @@
 package com.android.systemui.statusbar;
 
 import android.content.Intent;
-import android.content.pm.PackageManager;
 import android.os.Handler;
-import android.service.notification.StatusBarNotification;
 import android.view.View;
 
 /**
@@ -48,7 +46,7 @@
      * Runs the given intent. The presenter may want to run some animations or close itself when
      * this happens.
      */
-    void startNotificationGutsIntent(Intent intent, int appUid);
+    void startNotificationGutsIntent(Intent intent, int appUid, ExpandableNotificationRow row);
 
     /**
      * Returns the Handler for NotificationPresenter.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationViewHierarchyManager.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationViewHierarchyManager.java
index 266c09b..cd4c7ae 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationViewHierarchyManager.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationViewHierarchyManager.java
@@ -18,6 +18,7 @@
 
 import android.content.Context;
 import android.content.res.Resources;
+import android.service.notification.NotificationListenerService;
 import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
@@ -338,6 +339,9 @@
                     stack.push(notificationChildren.get(i));
                 }
             }
+
+            row.showBlockingHelper(entry.userSentiment ==
+                    NotificationListenerService.Ranking.USER_SENTIMENT_NEGATIVE);
         }
 
         mPresenter.onUpdateRowStates();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/RemoteInputController.java b/packages/SystemUI/src/com/android/systemui/statusbar/RemoteInputController.java
index 97e3d22..cfc69a8 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/RemoteInputController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/RemoteInputController.java
@@ -47,7 +47,6 @@
     private final Delegate mDelegate;
 
     public RemoteInputController(Delegate delegate) {
-        addCallback(Dependency.get(StatusBarWindowManager.class));
         mDelegate = delegate;
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/notification/ActivityLaunchAnimator.java b/packages/SystemUI/src/com/android/systemui/statusbar/notification/ActivityLaunchAnimator.java
new file mode 100644
index 0000000..8336d29
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/notification/ActivityLaunchAnimator.java
@@ -0,0 +1,242 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.systemui.statusbar.notification;
+
+import android.animation.Animator;
+import android.animation.AnimatorListenerAdapter;
+import android.animation.ValueAnimator;
+import android.app.ActivityOptions;
+import android.graphics.Matrix;
+import android.graphics.Rect;
+import android.os.RemoteException;
+import android.util.MathUtils;
+import android.view.IRemoteAnimationFinishedCallback;
+import android.view.IRemoteAnimationRunner;
+import android.view.RemoteAnimationAdapter;
+import android.view.RemoteAnimationTarget;
+import android.view.Surface;
+import android.view.SurfaceControl;
+import android.view.ViewRootImpl;
+
+import com.android.systemui.Interpolators;
+import com.android.systemui.statusbar.ExpandableNotificationRow;
+import com.android.systemui.statusbar.NotificationListContainer;
+import com.android.systemui.statusbar.phone.CollapsedStatusBarFragment;
+import com.android.systemui.statusbar.phone.NotificationPanelView;
+import com.android.systemui.statusbar.phone.StatusBarWindowView;
+import com.android.systemui.statusbar.stack.NotificationStackScrollLayout;
+
+import java.util.function.Consumer;
+
+/**
+ * A class that allows activities to be launched in a seamless way where the notification
+ * transforms nicely into the starting window.
+ */
+public class ActivityLaunchAnimator {
+
+    private static final int ANIMATION_DURATION = 400;
+    public static final long ANIMATION_DURATION_FADE_CONTENT = 67;
+    public static final long ANIMATION_DURATION_FADE_APP = 200;
+    public static final long ANIMATION_DELAY_ICON_FADE_IN = ANIMATION_DURATION -
+            CollapsedStatusBarFragment.FADE_IN_DURATION - CollapsedStatusBarFragment.FADE_IN_DELAY
+            - 16;
+    private final NotificationPanelView mNotificationPanel;
+    private final NotificationListContainer mNotificationContainer;
+    private final StatusBarWindowView mStatusBarWindow;
+    private final Consumer<Boolean> mPanelCollapser;
+
+    public ActivityLaunchAnimator(StatusBarWindowView statusBarWindow,
+            Consumer<Boolean> panelCollapser,
+            NotificationPanelView notificationPanel,
+            NotificationListContainer container) {
+        mNotificationPanel = notificationPanel;
+        mNotificationContainer = container;
+        mStatusBarWindow = statusBarWindow;
+        mPanelCollapser = panelCollapser;
+    }
+
+    public ActivityOptions getLaunchAnimation(
+            ExpandableNotificationRow sourceNofitication) {
+        AnimationRunner animationRunner = new AnimationRunner(sourceNofitication);
+        return ActivityOptions.makeRemoteAnimation(
+                new RemoteAnimationAdapter(animationRunner, 1000 /* Duration */, 0 /* delay */));
+    }
+
+    class AnimationRunner extends IRemoteAnimationRunner.Stub {
+
+        private final ExpandableNotificationRow mSourceNotification;
+        private final ExpandAnimationParameters mParams;
+        private final Rect mWindowCrop = new Rect();
+        private boolean mLeashShown;
+        private boolean mInstantCollapsePanel = true;
+
+        public AnimationRunner(ExpandableNotificationRow sourceNofitication) {
+            mSourceNotification = sourceNofitication;
+            mParams = new ExpandAnimationParameters();
+        }
+
+        @Override
+        public void onAnimationStart(RemoteAnimationTarget[] remoteAnimationTargets,
+                IRemoteAnimationFinishedCallback iRemoteAnimationFinishedCallback)
+                    throws RemoteException {
+            mSourceNotification.post(() -> {
+                boolean first = true;
+                for (RemoteAnimationTarget app : remoteAnimationTargets) {
+                    if (app.mode == RemoteAnimationTarget.MODE_OPENING) {
+                        setExpandAnimationRunning(true);
+                        mInstantCollapsePanel = app.position.y == 0
+                                && app.sourceContainerBounds.height()
+                                        >= mNotificationPanel.getHeight();
+                        if (!mInstantCollapsePanel) {
+                            mNotificationPanel.collapseWithDuration(ANIMATION_DURATION);
+                        }
+                        ValueAnimator anim = ValueAnimator.ofFloat(0, 1);
+                        mParams.startPosition = mSourceNotification.getLocationOnScreen();
+                        mParams.startTranslationZ = mSourceNotification.getTranslationZ();
+                        int targetWidth = app.sourceContainerBounds.width();
+                        int notificationHeight = mSourceNotification.getActualHeight();
+                        int notificationWidth = mSourceNotification.getWidth();
+                        anim.setDuration(ANIMATION_DURATION);
+                        anim.setInterpolator(Interpolators.LINEAR);
+                        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+                            @Override
+                            public void onAnimationUpdate(ValueAnimator animation) {
+                                mParams.linearProgress = animation.getAnimatedFraction();
+                                float progress
+                                        = Interpolators.FAST_OUT_SLOW_IN.getInterpolation(
+                                                mParams.linearProgress);
+                                int newWidth = (int) MathUtils.lerp(notificationWidth,
+                                        targetWidth, progress);
+                                mParams.left = (int) ((targetWidth - newWidth) / 2.0f);
+                                mParams.right = mParams.left + newWidth;
+                                mParams.top = (int) MathUtils.lerp(mParams.startPosition[1],
+                                        app.position.y, progress);
+                                mParams.bottom = (int) MathUtils.lerp(mParams.startPosition[1]
+                                                + notificationHeight,
+                                        app.position.y + app.sourceContainerBounds.bottom,
+                                        progress);
+                                applyParamsToWindow(app);
+                                applyParamsToNotification(mParams);
+                                applyParamsToNotificationList(mParams);
+                            }
+                        });
+                        anim.addListener(new AnimatorListenerAdapter() {
+                            @Override
+                            public void onAnimationEnd(Animator animation) {
+                                setExpandAnimationRunning(false);
+                                if (mInstantCollapsePanel) {
+                                    mPanelCollapser.accept(false /* animate */);
+                                }
+                                try {
+                                    iRemoteAnimationFinishedCallback.onAnimationFinished();
+                                } catch (RemoteException e) {
+                                    e.printStackTrace();
+                                }
+                            }
+                        });
+                        anim.start();
+                        break;
+                    }
+                }
+            });
+        }
+
+        private void setExpandAnimationRunning(boolean running) {
+            mNotificationPanel.setLaunchingNotification(running);
+            mSourceNotification.setExpandAnimationRunning(running);
+            mStatusBarWindow.setExpandAnimationRunning(running);
+            mNotificationContainer.setExpandingNotification(running ? mSourceNotification : null);
+            if (!running) {
+                applyParamsToNotification(null);
+                applyParamsToNotificationList(null);
+            }
+
+        }
+
+        private void applyParamsToNotificationList(ExpandAnimationParameters params) {
+            mNotificationContainer.applyExpandAnimationParams(params);
+            mNotificationPanel.applyExpandAnimationParams(params);
+        }
+
+        private void applyParamsToNotification(ExpandAnimationParameters params) {
+            mSourceNotification.applyExpandAnimationParams(params);
+        }
+
+        private void applyParamsToWindow(RemoteAnimationTarget app) {
+            SurfaceControl.Transaction t = new SurfaceControl.Transaction();
+            if (!mLeashShown) {
+                t.show(app.leash);
+                mLeashShown = true;
+            }
+            Matrix m = new Matrix();
+            m.postTranslate(0, (float) (mParams.top - app.position.y));
+            t.setMatrix(app.leash, m, new float[9]);
+            mWindowCrop.set(mParams.left, 0, mParams.right, mParams.getHeight());
+            t.setWindowCrop(app.leash, mWindowCrop);
+            ViewRootImpl viewRootImpl = mSourceNotification.getViewRootImpl();
+            if (viewRootImpl != null) {
+                Surface systemUiSurface = viewRootImpl.mSurface;
+                t.deferTransactionUntilSurface(app.leash, systemUiSurface,
+                        systemUiSurface.getNextFrameNumber());
+            }
+            t.apply();
+        }
+
+        @Override
+        public void onAnimationCancelled() throws RemoteException {
+        }
+    };
+
+    public static class ExpandAnimationParameters {
+        float linearProgress;
+        int[] startPosition;
+        float startTranslationZ;
+        int left;
+        int top;
+        int right;
+        int bottom;
+
+        public ExpandAnimationParameters() {
+        }
+
+        public int getTop() {
+            return top;
+        }
+
+        public int getWidth() {
+            return right - left;
+        }
+
+        public int getHeight() {
+            return bottom - top;
+        }
+
+        public int getTopChange() {
+            return Math.min(top - startPosition[1], 0);
+        }
+
+
+        public float getProgress(long delay, long duration) {
+            return MathUtils.constrain((linearProgress * ANIMATION_DURATION - delay)
+                    / duration, 0.0f, 1.0f);
+        }
+
+        public float getStartTranslationZ() {
+            return startTranslationZ;
+        }
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CollapsedStatusBarFragment.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CollapsedStatusBarFragment.java
index 61cb61c..f7f791e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/CollapsedStatusBarFragment.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/CollapsedStatusBarFragment.java
@@ -51,6 +51,8 @@
 
     public static final String TAG = "CollapsedStatusBarFragment";
     private static final String EXTRA_PANEL_STATE = "panel_state";
+    public static final int FADE_IN_DURATION = 320;
+    public static final int FADE_IN_DELAY = 50;
     private PhoneStatusBarView mStatusBar;
     private KeyguardMonitor mKeyguardMonitor;
     private NetworkController mNetworkController;
@@ -257,9 +259,9 @@
         }
         v.animate()
                 .alpha(1f)
-                .setDuration(320)
+                .setDuration(FADE_IN_DURATION)
                 .setInterpolator(Interpolators.ALPHA_IN)
-                .setStartDelay(50)
+                .setStartDelay(FADE_IN_DELAY)
 
                 // We need to clean up any pending end action from animateHide if we call
                 // both hide and show in the same frame before the animation actually gets started.
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
index 368b36b..61c8027 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java
@@ -60,6 +60,7 @@
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.MotionEvent;
+import android.view.Surface;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.WindowManager;
@@ -123,6 +124,7 @@
     private AccessibilityManager mAccessibilityManager;
     private MagnificationContentObserver mMagnificationObserver;
     private ContentResolver mContentResolver;
+    private final MetricsLogger mMetricsLogger = Dependency.get(MetricsLogger.class);
 
     private int mDisabledFlags1;
     private StatusBar mStatusBar;
@@ -223,7 +225,7 @@
         mNavigationBarView = (NavigationBarView) view;
 
         mNavigationBarView.setDisabledFlags(mDisabledFlags1);
-        mNavigationBarView.setComponents(mRecents, mDivider);
+        mNavigationBarView.setComponents(mRecents, mDivider, mStatusBar.getPanel());
         mNavigationBarView.setOnVerticalChangedListener(this::onVerticalChanged);
         mNavigationBarView.setOnTouchListener(this::onNavigationTouch);
         if (savedInstanceState != null) {
@@ -354,6 +356,7 @@
             mLastRotationSuggestion = rotation; // Remember rotation for click
             setRotateSuggestionButtonState(true);
             rescheduleRotationTimeout(false);
+            mMetricsLogger.visible(MetricsEvent.ROTATION_SUGGESTION_SHOWN);
         }
     }
 
@@ -611,7 +614,7 @@
         if (shouldDisableNavbarGestures()) {
             return false;
         }
-        MetricsLogger.action(getContext(), MetricsEvent.ACTION_ASSIST_LONG_PRESS);
+        mMetricsLogger.action(MetricsEvent.ACTION_ASSIST_LONG_PRESS);
         mAssistManager.startAssist(new Bundle() /* args */);
         mStatusBar.awakenDreams();
 
@@ -767,6 +770,7 @@
     }
 
     private void onRotateSuggestionClick(View v) {
+        mMetricsLogger.action(MetricsEvent.ACTION_ROTATION_SUGGESTION_ACCEPTED);
         mRotationLockController.setRotationLockedAtAngle(true, mLastRotationSuggestion);
     }
 
@@ -830,10 +834,13 @@
             // window in response to the orientation change.
             Handler h = getView().getHandler();
             Message msg = Message.obtain(h, () -> {
-                // If the screen rotation changes while locked, update lock rotation to flow with
+
+                // If the screen rotation changes while locked, potentially update lock to flow with
                 // new screen rotation and hide any showing suggestions.
                 if (mRotationLockController.isRotationLocked()) {
-                    mRotationLockController.setRotationLockedAtAngle(true, rotation);
+                    if (shouldOverrideUserLockPrefs(rotation)) {
+                        mRotationLockController.setRotationLockedAtAngle(true, rotation);
+                    }
                     setRotateSuggestionButtonState(false, true);
                 }
 
@@ -845,6 +852,12 @@
             msg.setAsynchronous(true);
             h.sendMessageAtFrontOfQueue(msg);
         }
+
+        private boolean shouldOverrideUserLockPrefs(final int rotation) {
+            // Only override user prefs when returning to portrait.
+            // Don't let apps that force landscape or 180 alter user lock.
+            return rotation == Surface.ROTATION_0;
+        }
     };
 
     private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarGestureHelper.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarGestureHelper.java
index ff923e5..0954fd0 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarGestureHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarGestureHelper.java
@@ -34,6 +34,7 @@
 import com.android.systemui.OverviewProxyService;
 import com.android.systemui.R;
 import com.android.systemui.RecentsComponent;
+import com.android.systemui.SysUiServiceProvider;
 import com.android.systemui.plugins.statusbar.phone.NavGesture.GestureHelper;
 import com.android.systemui.shared.recents.IOverviewProxy;
 import com.android.systemui.shared.recents.utilities.Utilities;
@@ -78,6 +79,7 @@
     private final int mScrollTouchSlop;
     private final Matrix mTransformGlobalMatrix = new Matrix();
     private final Matrix mTransformLocalMatrix = new Matrix();
+    private final StatusBar mStatusBar;
     private int mTouchDownX;
     private int mTouchDownY;
     private boolean mDownOnRecents;
@@ -90,6 +92,7 @@
 
     public NavigationBarGestureHelper(Context context) {
         mContext = context;
+        mStatusBar = SysUiServiceProvider.getComponent(context, StatusBar.class);
         Resources r = context.getResources();
         mScrollTouchSlop = r.getDimensionPixelSize(R.dimen.navigation_bar_min_swipe_distance);
         mQuickScrubController = new QuickScrubController(context);
@@ -146,7 +149,8 @@
                 break;
             }
         }
-        if (!mQuickScrubController.onInterceptTouchEvent(event)) {
+        if (mStatusBar.isPresenterFullyCollapsed()
+                && !mQuickScrubController.onInterceptTouchEvent(event)) {
             proxyMotionEvents(event);
             return false;
         }
@@ -304,7 +308,8 @@
     }
 
     public boolean onTouchEvent(MotionEvent event) {
-        boolean result = mQuickScrubController.onTouchEvent(event) || proxyMotionEvents(event);
+        boolean result = mStatusBar.isPresenterFullyCollapsed()
+                && (mQuickScrubController.onTouchEvent(event) || proxyMotionEvents(event));
         if (mDockWindowEnabled) {
             result |= handleDockWindowEvent(event);
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
index 059ce92..9f4d35e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarView.java
@@ -57,10 +57,11 @@
 import com.android.systemui.plugins.PluginManager;
 import com.android.systemui.plugins.statusbar.phone.NavGesture;
 import com.android.systemui.plugins.statusbar.phone.NavGesture.GestureHelper;
+import com.android.systemui.recents.SwipeUpOnboarding;
 import com.android.systemui.stackdivider.Divider;
-import com.android.systemui.statusbar.policy.TintedKeyButtonDrawable;
 import com.android.systemui.statusbar.policy.DeadZone;
 import com.android.systemui.statusbar.policy.KeyButtonDrawable;
+import com.android.systemui.statusbar.policy.TintedKeyButtonDrawable;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -124,6 +125,8 @@
     private NavigationBarInflaterView mNavigationInflaterView;
     private RecentsComponent mRecentsComponent;
     private Divider mDivider;
+    private SwipeUpOnboarding mSwipeUpOnboarding;
+    private NotificationPanelView mPanelView;
 
     private class NavTransitionListener implements TransitionListener {
         private boolean mBackTransitioning;
@@ -204,8 +207,9 @@
     }
 
     private final OverviewProxyListener mOverviewProxyListener = isConnected -> {
-        setSlippery(!isConnected);
+        updateSlippery();
         setDisabledFlags(mDisabledFlags, true);
+        setUpSwipeUpOnboarding(isConnected);
     };
 
     public NavigationBarView(Context context, AttributeSet attrs) {
@@ -237,6 +241,7 @@
                 new ButtonDispatcher(R.id.rotate_suggestion));
 
         mOverviewProxyService = Dependency.get(OverviewProxyService.class);
+        mSwipeUpOnboarding = new SwipeUpOnboarding(context);
     }
 
     public BarTransitions getBarTransitions() {
@@ -247,9 +252,11 @@
         return mBarTransitions.getLightTransitionsController();
     }
 
-    public void setComponents(RecentsComponent recentsComponent, Divider divider) {
+    public void setComponents(RecentsComponent recentsComponent, Divider divider,
+            NotificationPanelView panel) {
         mRecentsComponent = recentsComponent;
         mDivider = divider;
+        mPanelView = panel;
         if (mGestureHelper instanceof NavigationBarGestureHelper) {
             ((NavigationBarGestureHelper) mGestureHelper).setComponents(
                     recentsComponent, divider, this);
@@ -567,6 +574,14 @@
         }
     }
 
+    public void onPanelExpandedChange(boolean expanded) {
+        updateSlippery();
+    }
+
+    private void updateSlippery() {
+        setSlippery(mOverviewProxyService.getProxy() != null && mPanelView.isFullyExpanded());
+    }
+
     private void setSlippery(boolean slippery) {
         boolean changed = false;
         final ViewGroup navbarView = ((ViewGroup) getParent());
@@ -630,6 +645,9 @@
         if (mGestureHelper != null) {
             mGestureHelper.onDarkIntensityChange(intensity);
         }
+        if (mSwipeUpOnboarding != null) {
+            mSwipeUpOnboarding.setContentDarkIntensity(intensity);
+        }
     }
 
     @Override
@@ -740,6 +758,7 @@
         updateTaskSwitchHelper();
         updateIcons(getContext(), mConfiguration, newConfig);
         updateRecentsIcon();
+        mSwipeUpOnboarding.onConfigurationChanged(newConfig);
         if (uiCarModeChanged || mConfiguration.densityDpi != newConfig.densityDpi
                 || mConfiguration.getLayoutDirection() != newConfig.getLayoutDirection()) {
             // If car mode or density changes, we need to reset the icons.
@@ -829,6 +848,7 @@
         Dependency.get(PluginManager.class).addPluginListener(this,
                 NavGesture.class, false /* Only one */);
         mOverviewProxyService.addCallback(mOverviewProxyListener);
+        setUpSwipeUpOnboarding(mOverviewProxyService.getProxy() != null);
     }
 
     @Override
@@ -839,6 +859,15 @@
             mGestureHelper.destroy();
         }
         mOverviewProxyService.removeCallback(mOverviewProxyListener);
+        setUpSwipeUpOnboarding(false);
+    }
+
+    private void setUpSwipeUpOnboarding(boolean connectedToOverviewProxy) {
+        if (connectedToOverviewProxy) {
+            mSwipeUpOnboarding.onConnectedToLauncher(mOverviewProxyService.getLauncherComponent());
+        } else {
+            mSwipeUpOnboarding.onDisconnectedFromLauncher();
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 66cb59e..31b8159 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.phone;
 
+import static com.android.systemui.statusbar.notification.ActivityLaunchAnimator.ExpandAnimationParameters;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
@@ -45,7 +47,6 @@
 import android.view.WindowInsets;
 import android.view.accessibility.AccessibilityEvent;
 import android.widget.FrameLayout;
-
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.keyguard.KeyguardStatusView;
@@ -65,6 +66,7 @@
 import com.android.systemui.statusbar.NotificationData;
 import com.android.systemui.statusbar.NotificationShelf;
 import com.android.systemui.statusbar.StatusBarState;
+import com.android.systemui.statusbar.notification.ActivityLaunchAnimator;
 import com.android.systemui.statusbar.notification.NotificationUtils;
 import com.android.systemui.statusbar.policy.HeadsUpManager;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcher;
@@ -241,6 +243,8 @@
     private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
     private boolean mUserSetupComplete;
     private int mQsNotificationTopPadding;
+    private float mExpandOffset;
+    private boolean mHideIconsDuringNotificationLaunch = true;
 
     public NotificationPanelView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -670,7 +674,7 @@
 
     @Override
     public boolean onInterceptTouchEvent(MotionEvent event) {
-        if (mBlockTouches || mQs.isCustomizing()) {
+        if (mBlockTouches || mQsFullyExpanded && mQs.onInterceptTouchEvent(event)) {
             return false;
         }
         initDownStates(event);
@@ -1675,8 +1679,9 @@
         if (mStatusBar.getBarState() == StatusBarState.KEYGUARD) {
             return 0;
         }
-        float translation = NotificationUtils.interpolate(-mQsMinExpansionHeight, 0,
-                mNotificationStackScroller.getAppearFraction(mExpandedHeight));
+        float translation = MathUtils.lerp(-mQsMinExpansionHeight, 0,
+                Math.min(1.0f, mNotificationStackScroller.getAppearFraction(mExpandedHeight)))
+                + mExpandOffset;
         return Math.min(0, translation);
     }
 
@@ -2540,6 +2545,9 @@
     }
 
     public boolean hideStatusBarIconsWhenExpanded() {
+        if (mLaunchingNotification) {
+            return mHideIconsDuringNotificationLaunch;
+        }
         return !isFullWidth() || !mShowIconsWhenExpanded;
     }
 
@@ -2624,6 +2632,7 @@
 
     public void setPulsing(Collection<HeadsUpManager.HeadsUpEntry> pulsing) {
         mKeyguardStatusView.setPulsing(pulsing != null);
+        positionClockAndNotifications();
         mNotificationStackScroller.setPulsing(pulsing, mKeyguardStatusView.getLocationOnScreen()[1]
                 + mKeyguardStatusView.getClockBottom());
     }
@@ -2665,4 +2674,19 @@
     public LockIcon getLockIcon() {
         return mKeyguardBottomArea.getLockIcon();
     }
+
+    public void applyExpandAnimationParams(ExpandAnimationParameters params) {
+        mExpandOffset = params != null ? params.getTopChange() : 0;
+        updateQsExpansion();
+        if (params != null) {
+            boolean hideIcons = params.getProgress(
+                    ActivityLaunchAnimator.ANIMATION_DELAY_ICON_FADE_IN, 100) == 0.0f;
+            if (hideIcons != mHideIconsDuringNotificationLaunch) {
+                mHideIconsDuringNotificationLaunch = hideIcons;
+                if (!hideIcons) {
+                    mStatusBar.recomputeDisableFlags(true /* animate */);
+                }
+            }
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
index 2fc22ca..a62a424 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java
@@ -60,12 +60,15 @@
     public static final String TAG = PanelView.class.getSimpleName();
     private static final int INITIAL_OPENING_PEEK_DURATION = 200;
     private static final int PEEK_ANIMATION_DURATION = 360;
+    private static final int NO_FIXED_DURATION = -1;
     private long mDownTime;
     private float mMinExpandHeight;
     private LockscreenGestureLogger mLockscreenGestureLogger = new LockscreenGestureLogger();
     private boolean mPanelUpdateWhenAnimatorEnds;
     private boolean mVibrateOnOpening;
     private boolean mVibrationEnabled;
+    protected boolean mLaunchingNotification;
+    private int mFixedDuration = NO_FIXED_DURATION;
 
     private final void logf(String fmt, Object... args) {
         Log.v(TAG, (mViewName != null ? (mViewName + ": ") : "") + String.format(fmt, args));
@@ -785,6 +788,9 @@
             if (vel == 0) {
                 animator.setDuration((long) (animator.getDuration() / collapseSpeedUpFactor));
             }
+            if (mFixedDuration != NO_FIXED_DURATION) {
+                animator.setDuration(mFixedDuration);
+            }
         }
         animator.addListener(new AnimatorListenerAdapter() {
             private boolean mCancelled;
@@ -1249,4 +1255,14 @@
     public void setHeadsUpManager(HeadsUpManager headsUpManager) {
         mHeadsUpManager = headsUpManager;
     }
+
+    public void setLaunchingNotification(boolean launchingNotification) {
+        mLaunchingNotification = launchingNotification;
+    }
+
+    public void collapseWithDuration(int animationDuration) {
+        mFixedDuration = animationDuration;
+        collapse(false /* delayed */, 1.0f /* speedUpFactor */);
+        mFixedDuration = NO_FIXED_DURATION;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java
index b181212..cc5a93c 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java
@@ -250,6 +250,9 @@
         super.panelExpansionChanged(frac, expanded);
         mPanelFraction = frac;
         updateScrimFraction();
+        if ((frac == 0 || frac == 1) && mBar.getNavigationBarView() != null) {
+            mBar.getNavigationBarView().onPanelExpandedChange(expanded);
+        }
     }
 
     private void updateScrimFraction() {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java
index ee1d088..001a1a2 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickScrubController.java
@@ -19,6 +19,7 @@
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.AnimatorSet;
+import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.animation.ValueAnimator.AnimatorUpdateListener;
@@ -82,7 +83,10 @@
     private boolean mDragPositive;
     private boolean mIsVertical;
     private boolean mIsRTL;
-    private float mMaxTrackPaintAlpha;
+    private float mTrackAlpha;
+    private int mLightTrackColor;
+    private int mDarkTrackColor;
+    private float mDarkIntensity;
 
     private final Handler mHandler = new Handler();
     private final Interpolator mQuickScrubEndInterpolator = new DecelerateInterpolator();
@@ -98,9 +102,10 @@
     private final ValueAnimator mButtonAnimator;
     private final AnimatorSet mQuickScrubEndAnimator;
     private final Context mContext;
+    private final ArgbEvaluator mTrackColorEvaluator = new ArgbEvaluator();
 
     private final AnimatorUpdateListener mTrackAnimatorListener = valueAnimator -> {
-        mTrackPaint.setAlpha(Math.round((float) valueAnimator.getAnimatedValue() * 255));
+        mTrackAlpha = (float) valueAnimator.getAnimatedValue();
         mNavigationBarView.invalidate();
     };
 
@@ -167,6 +172,7 @@
         mGestureDetector = new GestureDetector(mContext, mGestureListener);
         mTrackThickness = getDimensionPixelSize(mContext, R.dimen.nav_quick_scrub_track_thickness);
         mTrackPadding = getDimensionPixelSize(mContext, R.dimen.nav_quick_scrub_track_edge_padding);
+        mTrackPaint.setAlpha(0);
 
         mTrackAnimator = ObjectAnimator.ofFloat();
         mTrackAnimator.addUpdateListener(mTrackAnimatorListener);
@@ -291,6 +297,10 @@
 
     @Override
     public void onDraw(Canvas canvas) {
+        int color = (int) mTrackColorEvaluator.evaluate(mDarkIntensity, mLightTrackColor,
+                mDarkTrackColor);
+        mTrackPaint.setColor(color);
+        mTrackPaint.setAlpha((int) (mTrackPaint.getAlpha() * mTrackAlpha));
         canvas.drawRect(mTrackRect, mTrackPaint);
     }
 
@@ -326,13 +336,8 @@
 
     @Override
     public void onDarkIntensityChange(float intensity) {
-        if (intensity == 0) {
-            mTrackPaint.setColor(mContext.getColor(R.color.quick_step_track_background_light));
-        } else if (intensity == 1) {
-            mTrackPaint.setColor(mContext.getColor(R.color.quick_step_track_background_dark));
-        }
-        mMaxTrackPaintAlpha = mTrackPaint.getAlpha() * 1f / 255;
-        mTrackPaint.setAlpha(0);
+        mDarkIntensity = intensity;
+        mNavigationBarView.invalidate();
     }
 
     @Override
@@ -365,7 +370,9 @@
     private void startQuickScrub() {
         if (!mQuickScrubActive) {
             mQuickScrubActive = true;
-            mTrackAnimator.setFloatValues(0, mMaxTrackPaintAlpha);
+            mLightTrackColor = mContext.getColor(R.color.quick_step_track_background_light);
+            mDarkTrackColor = mContext.getColor(R.color.quick_step_track_background_dark);
+            mTrackAnimator.setFloatValues(0, 1);
             mTrackAnimator.start();
             try {
                 mOverviewEventSender.getProxy().onQuickScrubStart();
@@ -382,7 +389,7 @@
         mHandler.removeCallbacks(mLongPressRunnable);
         if (mDraggingActive || mQuickScrubActive) {
             mButtonAnimator.setIntValues((int) mTranslation, 0);
-            mTrackAnimator.setFloatValues(mTrackPaint.getAlpha() * 1f / 255, 0);
+            mTrackAnimator.setFloatValues(mTrackAlpha, 0);
             mQuickScrubEndAnimator.start();
             try {
                 mOverviewEventSender.getProxy().onQuickScrubEnd();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
index d13ecae..7d84550 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBar.java
@@ -100,6 +100,8 @@
 import android.service.notification.StatusBarNotification;
 import android.service.vr.IVrManager;
 import android.service.vr.IVrStateCallbacks;
+import android.text.SpannedString;
+import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.util.EventLog;
 import android.util.Log;
@@ -205,6 +207,7 @@
 import com.android.systemui.statusbar.SignalClusterView;
 import com.android.systemui.statusbar.StatusBarState;
 import com.android.systemui.statusbar.notification.AboveShelfObserver;
+import com.android.systemui.statusbar.notification.ActivityLaunchAnimator;
 import com.android.systemui.statusbar.notification.VisualStabilityManager;
 import com.android.systemui.statusbar.phone.UnlockMethodCache.OnUnlockMethodChangedListener;
 import com.android.systemui.statusbar.policy.BatteryController;
@@ -586,6 +589,7 @@
 
     private NavigationBarFragment mNavigationBar;
     private View mNavigationBarView;
+    private ActivityLaunchAnimator mActivityLaunchAnimator;
 
     @Override
     public void start() {
@@ -755,6 +759,10 @@
         // into fragments, but the rest here, it leaves some awkward lifecycle and whatnot.
         mNotificationPanel = mStatusBarWindow.findViewById(R.id.notification_panel);
         mStackScroller = mStatusBarWindow.findViewById(R.id.notification_stack_scroller);
+        mActivityLaunchAnimator = new ActivityLaunchAnimator(mStatusBarWindow,
+                this::collapsePanel,
+                mNotificationPanel,
+                mStackScroller);
         mGutsManager.setUpWithPresenter(this, mEntryManager, mStackScroller, mCheckSaveListener,
                 key -> {
                     try {
@@ -2760,6 +2768,7 @@
                         mStackScroller.requestDisallowDismiss();
                     }
                 });
+        mRemoteInputManager.getController().addCallback(mStatusBarWindowManager);
         mStatusBarWindowManager.add(mStatusBarWindow, getStatusBarHeight());
     }
 
@@ -2795,7 +2804,8 @@
             intent.setFlags(
                     Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
             int result = ActivityManager.START_CANCELED;
-            ActivityOptions options = new ActivityOptions(getActivityOptions());
+            ActivityOptions options = new ActivityOptions(getActivityOptions(
+                    null /* sourceNotification */));
             options.setDisallowEnterPictureInPictureWhileLaunching(
                     disallowEnterPictureInPictureWhileLaunching);
             if (intent == KeyguardBottomAreaView.INSECURE_CAMERA_INTENT) {
@@ -4910,6 +4920,7 @@
                     ActivityManager.getService().resumeAppSwitches();
                 } catch (RemoteException e) {
                 }
+                int launchResult = ActivityManager.START_CANCELED;
                 if (intent != null) {
                     // If we are launching a work activity and require to launch
                     // separate work challenge, we defer the activity action and cancel
@@ -4924,12 +4935,30 @@
                                     notificationKey)) {
                                 // Show work challenge, do not run PendingIntent and
                                 // remove notification
+                                collapsePanel();
                                 return;
                             }
                         }
                     }
+                    Intent fillInIntent = null;
+                    Entry entry = row.getEntry();
+                    CharSequence remoteInputText = null;
+                    RemoteInputController controller = mRemoteInputManager.getController();
+                    if (controller.isRemoteInputActive(entry)) {
+                        remoteInputText = row.getActiveRemoteInputText();
+                    }
+                    if (TextUtils.isEmpty(remoteInputText)
+                            && !TextUtils.isEmpty(entry.remoteInputText)) {
+                        remoteInputText = entry.remoteInputText;
+                    }
+                    if (!TextUtils.isEmpty(remoteInputText)
+                            && !controller.isSpinning(entry.key)) {
+                        fillInIntent = new Intent().putExtra(Notification.EXTRA_REMOTE_INPUT_DRAFT,
+                                remoteInputText.toString());
+                    }
                     try {
-                        intent.send(null, 0, null, null, null, null, getActivityOptions());
+                        launchResult = intent.sendAndReturnResult(mContext, 0, fillInIntent, null,
+                                null, null, getActivityOptions(row));
                     } catch (PendingIntent.CanceledException e) {
                         // the stack trace isn't very helpful here.
                         // Just log the exception message.
@@ -4941,6 +4970,13 @@
                         mAssistManager.hideAssist();
                     }
                 }
+                if (shouldCollapse(launchResult)) {
+                    if (Looper.getMainLooper().isCurrentThread()) {
+                        collapsePanel();
+                    } else {
+                        mStackScroller.post(this::collapsePanel);
+                    }
+                }
 
                 try {
                     mBarService.onNotificationClick(notificationKey);
@@ -4963,19 +4999,45 @@
                 new Thread(runnable).start();
             }
 
-            if (!mNotificationPanel.isFullyCollapsed()) {
-                // close the shade if it was open
-                animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */,
-                        true /* delayed */);
-                visibilityChanged(false);
-
-                return true;
-            } else {
-                return false;
-            }
+            return !mNotificationPanel.isFullyCollapsed();
         }, afterKeyguardGone);
     }
 
+    private boolean shouldCollapse(int launchResult) {
+        return mState != StatusBarState.SHADE
+                || (launchResult != ActivityManager.START_TASK_TO_FRONT
+                        && launchResult != ActivityManager.START_SUCCESS);
+    }
+
+    public void onExpandAnimationFinished() {
+        if (!isPresenterFullyCollapsed()) {
+            instantCollapseNotificationPanel();
+            visibilityChanged(false);
+        }
+    }
+
+    public void collapsePanel(boolean animate) {
+        if (animate) {
+            collapsePanel();
+        } else if (!isPresenterFullyCollapsed()) {
+            instantCollapseNotificationPanel();
+            visibilityChanged(false);
+        }
+    }
+
+    private boolean collapsePanel() {
+        if (!mNotificationPanel.isFullyCollapsed()) {
+            // close the shade if it was open
+            animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */,
+                    true /* delayed */);
+            visibilityChanged(false);
+
+            return true;
+        } else {
+            return false;
+        }
+    }
+
     private void removeNotification(StatusBarNotification notification) {
         // We have to post it to the UI thread for synchronization
         mHandler.post(() -> {
@@ -5058,15 +5120,20 @@
     }
 
     @Override
-    public void startNotificationGutsIntent(final Intent intent, final int appUid) {
+    public void startNotificationGutsIntent(final Intent intent, final int appUid,
+            ExpandableNotificationRow row) {
         dismissKeyguardThenExecute(() -> {
             AsyncTask.execute(() -> {
-                TaskStackBuilder.create(mContext)
+                int launchResult = TaskStackBuilder.create(mContext)
                         .addNextIntentWithParentStack(intent)
-                        .startActivities(getActivityOptions(),
+                        .startActivities(getActivityOptions(row),
                                 new UserHandle(UserHandle.getUserId(appUid)));
+                if (shouldCollapse(launchResult)) {
+                    // Putting it back on the main thread, since we're touching views
+                    mStatusBarWindow.post(() -> animateCollapsePanels(
+                            CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */));
+                }
             });
-            animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */);
             return true;
         }, false /* afterKeyguardGone */);
     }
@@ -5192,7 +5259,8 @@
                 } catch (RemoteException e) {
                 }
                 try {
-                    intent.send(null, 0, null, null, null, null, getActivityOptions());
+                    intent.send(null, 0, null, null, null, null, getActivityOptions(
+                            null /* sourceNotification */));
                 } catch (PendingIntent.CanceledException e) {
                     // the stack trace isn't very helpful here.
                     // Just log the exception message.
@@ -5205,16 +5273,7 @@
                 }
             }).start();
 
-            if (!mNotificationPanel.isFullyCollapsed()) {
-                // close the shade if it was open
-                animateCollapsePanels(CommandQueue.FLAG_EXCLUDE_RECENTS_PANEL, true /* force */,
-                        true /* delayed */);
-                visibilityChanged(false);
-
-                return true;
-            } else {
-                return false;
-            }
+            return collapsePanel();
         }, afterKeyguardGone);
     }
 
@@ -5229,10 +5288,15 @@
         return true;
     }
 
-    protected Bundle getActivityOptions() {
+    protected Bundle getActivityOptions(ExpandableNotificationRow sourceNotification) {
+        ActivityOptions options;
+        if (sourceNotification != null) {
+            options = mActivityLaunchAnimator.getLaunchAnimation(sourceNotification);
+        } else {
+            options = ActivityOptions.makeBasic();
+        }
         // Anything launched from the notification shade should always go into the secondary
         // split-screen windowing mode.
-        final ActivityOptions options = ActivityOptions.makeBasic();
         options.setLaunchWindowingMode(WINDOWING_MODE_FULLSCREEN_OR_SPLIT_SCREEN_SECONDARY);
         return options.toBundle();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
index 4accd86..f7d0967 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
@@ -88,6 +88,7 @@
     private ViewTreeObserver.OnPreDrawListener mFloatingToolbarPreDrawListener;
     private boolean mTouchCancelled;
     private boolean mTouchActive;
+    private boolean mExpandAnimationRunning;
 
     public StatusBarWindowView(Context context, AttributeSet attrs) {
         super(context, attrs);
@@ -267,7 +268,7 @@
                 || ev.getActionMasked() == MotionEvent.ACTION_CANCEL) {
             setTouchActive(false);
         }
-        if (mTouchCancelled) {
+        if (mTouchCancelled || mExpandAnimationRunning) {
             return false;
         }
         mFalsingManager.onTouchEvent(ev, getWidth(), getHeight());
@@ -388,6 +389,10 @@
         }
     }
 
+    public void setExpandAnimationRunning(boolean expandAnimationRunning) {
+        mExpandAnimationRunning = expandAnimationRunning;
+    }
+
     public class LayoutParams extends FrameLayout.LayoutParams {
 
         public boolean ignoreRightInset;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
index 0b666a6..1e894ff 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/LocationControllerImpl.java
@@ -32,6 +32,7 @@
 import android.os.Process;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.provider.Settings;
 import android.support.annotation.VisibleForTesting;
 import com.android.systemui.util.Utils;
 import java.util.ArrayList;
@@ -105,7 +106,8 @@
         }
         // When enabling location, a user consent dialog will pop up, and the
         // setting won't be fully enabled until the user accepts the agreement.
-        updateLocationEnabled(mContext, enabled, currentUserId);
+        updateLocationEnabled(mContext, enabled, currentUserId,
+                Settings.Secure.LOCATION_CHANGER_QUICK_SETTINGS);
         return true;
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/RemoteInputView.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/RemoteInputView.java
index b63c1da..179c0d5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/RemoteInputView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/RemoteInputView.java
@@ -169,6 +169,10 @@
         }
     }
 
+    public CharSequence getText() {
+        return mEditText.getText();
+    }
+
     public static RemoteInputView inflate(Context context, ViewGroup root,
             NotificationData.Entry entry,
             RemoteInputController controller) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
index ebf4cda..424858a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/AmbientState.java
@@ -68,6 +68,8 @@
     private boolean mUnlockHintRunning;
     private boolean mQsCustomizerShowing;
     private int mIntrinsicPadding;
+    private int mExpandAnimationTopChange;
+    private ExpandableNotificationRow mExpandingNotification;
 
     public AmbientState(Context context) {
         reload(context);
@@ -77,9 +79,25 @@
      * Reload the dimens e.g. if the density changed.
      */
     public void reload(Context context) {
-        mZDistanceBetweenElements = Math.max(1, context.getResources()
+        mZDistanceBetweenElements = getZDistanceBetweenElements(context);
+        mBaseZHeight = getBaseHeight(mZDistanceBetweenElements);
+    }
+
+    private static int getZDistanceBetweenElements(Context context) {
+        return Math.max(1, context.getResources()
                 .getDimensionPixelSize(R.dimen.z_distance_between_notifications));
-        mBaseZHeight = 4 * mZDistanceBetweenElements;
+    }
+
+    private static int getBaseHeight(int zdistanceBetweenElements) {
+        return 4 * zdistanceBetweenElements;
+    }
+
+    /**
+     * @return the launch height for notifications that are launched
+     */
+    public static int getNotificationLaunchHeight(Context context) {
+        int zDistance = getZDistanceBetweenElements(context);
+        return getBaseHeight(zDistance) * 2;
     }
 
     /**
@@ -202,7 +220,8 @@
     }
 
     public int getInnerHeight() {
-        return Math.max(Math.min(mLayoutHeight, mMaxLayoutHeight) - mTopPadding, mLayoutMinHeight);
+        return Math.max(Math.min(mLayoutHeight, mMaxLayoutHeight) - mTopPadding
+                - mExpandAnimationTopChange, mLayoutMinHeight);
     }
 
     public boolean isShadeExpanded() {
@@ -380,4 +399,20 @@
     public boolean isDozingAndNotPulsing(ExpandableNotificationRow row) {
         return isDark() && !isPulsing(row.getEntry());
     }
+
+    public void setExpandAnimationTopChange(int expandAnimationTopChange) {
+        mExpandAnimationTopChange = expandAnimationTopChange;
+    }
+
+    public void setExpandingNotification(ExpandableNotificationRow row) {
+        mExpandingNotification = row;
+    }
+
+    public ExpandableNotificationRow getExpandingNotification() {
+        return mExpandingNotification;
+    }
+
+    public int getExpandAnimationTopChange() {
+        return mExpandAnimationTopChange;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/ExpandableViewState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/ExpandableViewState.java
index 0650e23..3bf7d89 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/ExpandableViewState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/ExpandableViewState.java
@@ -467,4 +467,21 @@
             return getChildTag(view, TAG_END_HEIGHT);
         }
     }
+
+    @Override
+    public void cancelAnimations(View view) {
+        super.cancelAnimations(view);
+        Animator animator = getChildTag(view, TAG_ANIMATOR_HEIGHT);
+        if (animator != null) {
+            animator.cancel();
+        }
+        animator = getChildTag(view, TAG_ANIMATOR_SHADOW_ALPHA);
+        if (animator != null) {
+            animator.cancel();
+        }
+        animator = getChildTag(view, TAG_ANIMATOR_TOP_INSET);
+        if (animator != null) {
+            animator.cancel();
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
index af3d64b..ad8a0eb 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.stack;
 
+import static com.android.systemui.statusbar.notification.ActivityLaunchAnimator.ExpandAnimationParameters;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
@@ -728,7 +730,7 @@
     }
 
     private void updateClippingToTopRoundedCorner() {
-        Float clipStart = (float) mTopPadding;
+        Float clipStart = (float) mTopPadding + mAmbientState.getExpandAnimationTopChange();
         Float clipEnd = clipStart + mCornerRadius;
         boolean first = true;
         for (int i = 0; i < getChildCount(); i++) {
@@ -1019,7 +1021,9 @@
                 mHeadsUpManager.addSwipedOutNotification(row.getStatusBarNotification().getKey());
             }
         }
-        performDismiss(v, mGroupManager, false /* fromAccessibility */);
+        if (v instanceof ExpandableNotificationRow) {
+            ((ExpandableNotificationRow) v).performDismiss(false /* fromAccessibility */);
+        }
 
         mFalsingManager.onNotificationDismissed();
         if (mFalsingManager.shouldEnforceBouncer()) {
@@ -1028,26 +1032,6 @@
         }
     }
 
-    public static void performDismiss(View v, NotificationGroupManager groupManager,
-            boolean fromAccessibility) {
-        if (!(v instanceof ExpandableNotificationRow)) {
-            return;
-        }
-        ExpandableNotificationRow row = (ExpandableNotificationRow) v;
-        if (groupManager.isOnlyChildInGroup(row.getStatusBarNotification())) {
-            ExpandableNotificationRow groupSummary =
-                    groupManager.getLogicalGroupSummary(row.getStatusBarNotification());
-            if (groupSummary.isClearable()) {
-                performDismiss(groupSummary, groupManager, fromAccessibility);
-            }
-        }
-        row.setDismissed(true, fromAccessibility);
-        if (row.isClearable()) {
-            row.performDismiss();
-        }
-        if (DEBUG) Log.v(TAG, "onChildDismissed: " + v);
-    }
-
     @Override
     public void onChildSnappedBack(View animView, float targetLeft) {
         mAmbientState.onDragFinished(animView);
@@ -3006,6 +2990,17 @@
                 && (mIsExpanded || isPinnedHeadsUp(child)), child);
     }
 
+    @Override
+    public void setExpandingNotification(ExpandableNotificationRow row) {
+        mAmbientState.setExpandingNotification(row);
+        requestChildrenUpdate();
+    }
+
+    @Override
+    public void applyExpandAnimationParams(ExpandAnimationParameters params) {
+        mAmbientState.setExpandAnimationTopChange(params == null ? 0 : params.getTopChange());
+        requestChildrenUpdate();
+    }
 
     private void updateAnimationState(boolean running, View child) {
         if (child instanceof ExpandableNotificationRow) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java
index 2ce6df2..d68a7b1 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollAlgorithm.java
@@ -130,7 +130,8 @@
     private void updateClipping(StackScrollState resultState,
             StackScrollAlgorithmState algorithmState, AmbientState ambientState) {
         float drawStart = !ambientState.isOnKeyguard() ? ambientState.getTopPadding()
-                + ambientState.getStackTranslation() : 0;
+                + ambientState.getStackTranslation() + ambientState.getExpandAnimationTopChange()
+                : 0;
         float previousNotificationEnd = 0;
         float previousNotificationStart = 0;
         int childCount = algorithmState.visibleChildren.size();
@@ -320,6 +321,10 @@
                 lastView = v;
             }
         }
+        ExpandableNotificationRow expandingNotification = ambientState.getExpandingNotification();
+        state.indexOfExpandingNotification = expandingNotification != null
+                ? state.visibleChildren.indexOf(expandingNotification)
+                : -1;
     }
 
     private float getPaddingForValue(Float increasedPadding) {
@@ -381,6 +386,9 @@
 
         childViewState.location = ExpandableViewState.LOCATION_MAIN_AREA;
         float inset = ambientState.getTopPadding() + ambientState.getStackTranslation();
+        if (i < algorithmState.getIndexOfExpandingNotification()) {
+            inset += ambientState.getExpandAnimationTopChange();
+        }
         if (child.mustStayOnScreen() && childViewState.yTranslation >= 0) {
             // Even if we're not scrolled away we're in view and we're also not in the
             // shelf. We can relax the constraints and let us scroll off the top!
@@ -394,7 +402,7 @@
             childViewState.yTranslation = ambientState.getInnerHeight() - childHeight
                     + ambientState.getStackTranslation() * 0.25f;
         } else {
-            clampPositionToShelf(childViewState, ambientState);
+            clampPositionToShelf(child, childViewState, ambientState);
         }
 
         currentYPosition = childViewState.yTranslation + childHeight + paddingAfterChild;
@@ -492,10 +500,12 @@
      * Clamp the height of the child down such that its end is at most on the beginning of
      * the shelf.
      *
+     * @param child
      * @param childViewState the view state of the child
      * @param ambientState the ambient state
      */
-    private void clampPositionToShelf(ExpandableViewState childViewState,
+    private void clampPositionToShelf(ExpandableView child,
+            ExpandableViewState childViewState,
             AmbientState ambientState) {
         if (ambientState.getShelf() == null) {
             return;
@@ -505,7 +515,7 @@
                 - ambientState.getShelf().getIntrinsicHeight();
         childViewState.yTranslation = Math.min(childViewState.yTranslation, shelfStart);
         if (childViewState.yTranslation >= shelfStart) {
-            childViewState.hidden = true;
+            childViewState.hidden = !child.isExpandAnimationRunning();
             childViewState.inShelf = true;
             childViewState.headsUpIsVisible = false;
         }
@@ -602,6 +612,7 @@
          * The padding after each child measured in pixels.
          */
         public final HashMap<ExpandableView, Float> paddingMap = new HashMap<>();
+        private int indexOfExpandingNotification;
 
         public int getPaddingAfterChild(ExpandableView child) {
             Float padding = paddingMap.get(child);
@@ -611,6 +622,10 @@
             }
             return (int) padding.floatValue();
         }
+
+        public int getIndexOfExpandingNotification() {
+            return indexOfExpandingNotification;
+        }
     }
 
 }
diff --git a/packages/SystemUI/src/com/android/systemui/volume/OutputChooserDialog.java b/packages/SystemUI/src/com/android/systemui/volume/OutputChooserDialog.java
index e3c8503..5c888ac 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/OutputChooserDialog.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/OutputChooserDialog.java
@@ -514,5 +514,8 @@
 
         @Override
         public void onAccessibilityModeChanged(Boolean showA11yStream) {}
+
+        @Override
+        public void onConnectedDeviceChanged(String deviceName) {}
     };
 }
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
index 4464f75..2e23920 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogControllerImpl.java
@@ -26,6 +26,8 @@
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.database.ContentObserver;
+import android.media.AudioDeviceCallback;
+import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
 import android.media.AudioSystem;
 import android.media.IVolumeController;
@@ -105,6 +107,8 @@
     private boolean mShowA11yStream;
     private boolean mShowVolumeDialog;
     private boolean mShowSafetyWarning;
+    private DeviceCallback mDeviceCallback = new DeviceCallback();
+    private AudioDeviceInfo mConnectedDevice;
 
     private boolean mDestroyed;
     private VolumePolicy mVolumePolicy;
@@ -180,6 +184,7 @@
         } catch (SecurityException e) {
             Log.w(TAG, "No access to media sessions", e);
         }
+        mAudio.registerAudioDeviceCallback(mDeviceCallback, mWorker);
     }
 
     public void setVolumePolicy(VolumePolicy policy) {
@@ -205,6 +210,7 @@
         mMediaSessions.destroy();
         mObserver.destroy();
         mReceiver.destroy();
+        mAudio.unregisterAudioDeviceCallback(mDeviceCallback);
         mWorkerThread.quitSafely();
     }
 
@@ -664,6 +670,7 @@
                 case USER_ACTIVITY: onUserActivityW(); break;
                 case SHOW_SAFETY_WARNING: onShowSafetyWarningW(msg.arg1); break;
                 case ACCESSIBILITY_MODE_CHANGED: onAccessibilityModeChanged((Boolean) msg.obj);
+
             }
         }
     }
@@ -803,6 +810,18 @@
                 });
             }
         }
+
+        @Override
+        public void onConnectedDeviceChanged(String deviceName) {
+            for (final Map.Entry<Callbacks, Handler> entry : mCallbackMap.entrySet()) {
+                entry.getValue().post(new Runnable() {
+                    @Override
+                    public void run() {
+                        entry.getKey().onConnectedDeviceChanged(deviceName);
+                    }
+                });
+            }
+        }
     }
 
 
@@ -1005,6 +1024,34 @@
         }
     }
 
+    protected final class DeviceCallback extends AudioDeviceCallback {
+        public void onAudioDevicesAdded(AudioDeviceInfo[] addedDevices) {
+            for (AudioDeviceInfo info : addedDevices) {
+                if (info.isSink()
+                        && (info.getType() == AudioDeviceInfo.TYPE_BLUETOOTH_A2DP
+                        || info.getType() == AudioDeviceInfo.TYPE_BLUETOOTH_SCO)) {
+                    mConnectedDevice = info;
+                    mCallbacks.onConnectedDeviceChanged(info.getProductName().toString());
+                }
+            }
+        }
+
+        public void onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices) {
+            if (mConnectedDevice == null) {
+                mCallbacks.onConnectedDeviceChanged(null);
+                return;
+            }
+            for (AudioDeviceInfo info : removedDevices) {
+                if (info.isSink() == mConnectedDevice.isSink()
+                        && Objects.equals(info.getProductName(), mConnectedDevice.getProductName())
+                        && info.getType() == mConnectedDevice.getType()) {
+                    mConnectedDevice = null;
+                    mCallbacks.onConnectedDeviceChanged(null);
+                }
+            }
+        }
+    }
+
     public interface UserActivityListener {
         void onUserActivity();
     }
diff --git a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
index 385438c..56b7201 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/VolumeDialogImpl.java
@@ -48,6 +48,7 @@
 import android.provider.Settings;
 import android.provider.Settings.Global;
 import android.support.v7.media.MediaRouter;
+import android.text.TextUtils;
 import android.util.Log;
 import android.util.Slog;
 import android.util.SparseBooleanArray;
@@ -73,6 +74,7 @@
 import com.android.settingslib.Utils;
 import com.android.systemui.Dependency;
 import com.android.systemui.R;
+import com.android.systemui.plugins.ActivityStarter;
 import com.android.systemui.plugins.VolumeDialog;
 import com.android.systemui.plugins.VolumeDialogController;
 import com.android.systemui.plugins.VolumeDialogController.State;
@@ -332,8 +334,11 @@
         row.slider.setOnSeekBarChangeListener(new VolumeSeekBarChangeListener(row));
         row.anim = null;
 
-        ImageButton outputChooser = row.view.findViewById(R.id.output_chooser);
-        outputChooser.setOnClickListener(mClickOutputChooser);
+        row.outputChooser = row.view.findViewById(R.id.output_chooser);
+        row.outputChooser.setOnClickListener(mClickOutputChooser);
+        row.outputChooser.findViewById(R.id.output_chooser_button)
+                .setOnClickListener(mClickOutputChooser);
+        row.connectedDevice = row.view.findViewById(R.id.volume_row_connected_device);
 
         // forward events above the slider into the slider
         row.view.setOnTouchListener(new OnTouchListener() {
@@ -422,7 +427,7 @@
             Intent intent = new Intent(Settings.ACTION_SOUND_SETTINGS);
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             dismissH(DISMISS_REASON_SETTINGS_CLICKED);
-            mContext.startActivity(intent);
+            Dependency.get(ActivityStarter.class).startActivity(intent, true /* dismissShade */);
             return true;
         });
         updateRingerH();
@@ -546,6 +551,13 @@
         }
     }
 
+    protected void updateConnectedDeviceH(String deviceName) {
+        for (final VolumeRow row : mRows) {
+            row.connectedDevice.setText(deviceName);
+            Util.setVisOrGone(row.connectedDevice, !TextUtils.isEmpty(deviceName));
+        }
+    }
+
     protected void updateRingerH() {
         if (mState != null) {
             final StreamState ss = mState.states.get(AudioManager.STREAM_RING);
@@ -957,6 +969,11 @@
             }
 
         }
+
+        @Override
+        public void onConnectedDeviceChanged(String deviceName) {
+            updateConnectedDeviceH(deviceName);
+        }
     };
 
     private final class H extends Handler {
@@ -1155,5 +1172,7 @@
         private ObjectAnimator anim;  // slider progress animation for non-touch-related updates
         private int animTargetProgress;
         private int lastAudibleLevel = 1;
+        private View outputChooser;
+        private TextView connectedDevice;
     }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/TestableDependency.java b/packages/SystemUI/tests/src/com/android/systemui/TestableDependency.java
index 53a7994..5c83d99 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/TestableDependency.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/TestableDependency.java
@@ -18,9 +18,11 @@
 
 import android.content.Context;
 import android.util.ArrayMap;
+import android.util.ArraySet;
 
 public class TestableDependency extends Dependency {
     private final ArrayMap<Object, Object> mObjs = new ArrayMap<>();
+    private final ArraySet<Object> mInstantiatedObjects = new ArraySet<>();
 
     public TestableDependency(Context context) {
         mContext = context;
@@ -47,6 +49,11 @@
     @Override
     protected <T> T createDependency(Object key) {
         if (mObjs.containsKey(key)) return (T) mObjs.get(key);
+        mInstantiatedObjects.add(key);
         return super.createDependency(key);
     }
+
+    public <T> boolean hasInstantiatedDependency(Class<T> key) {
+        return mObjs.containsKey(key) || mInstantiatedObjects.contains(key);
+    }
 }
diff --git a/packages/SystemUI/tests/src/com/android/systemui/power/PowerUITest.java b/packages/SystemUI/tests/src/com/android/systemui/power/PowerUITest.java
index fdb7f8d..0a51e5a 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/power/PowerUITest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/power/PowerUITest.java
@@ -40,6 +40,7 @@
 import com.android.systemui.power.PowerUI.WarningsUI;
 import com.android.systemui.statusbar.phone.StatusBar;
 
+import java.time.Duration;
 import java.util.concurrent.TimeUnit;
 import org.junit.Before;
 import org.junit.Test;
@@ -53,18 +54,19 @@
     private static final boolean UNPLUGGED = false;
     private static final boolean POWER_SAVER_OFF = false;
     private static final int ABOVE_WARNING_BUCKET = 1;
+    private static final long ONE_HOUR_MILLIS = Duration.ofHours(1).toMillis();
     public static final int BELOW_WARNING_BUCKET = -1;
     public static final long BELOW_HYBRID_THRESHOLD = TimeUnit.HOURS.toMillis(2);
     public static final long ABOVE_HYBRID_THRESHOLD = TimeUnit.HOURS.toMillis(4);
     private HardwarePropertiesManager mHardProps;
     private WarningsUI mMockWarnings;
     private PowerUI mPowerUI;
-    private EnhancedEstimates mEnhacedEstimates;
+    private EnhancedEstimates mEnhancedEstimates;
 
     @Before
     public void setup() {
         mMockWarnings = mDependency.injectMockDependency(WarningsUI.class);
-        mEnhacedEstimates = mDependency.injectMockDependency(EnhancedEstimates.class);
+        mEnhancedEstimates = mDependency.injectMockDependency(EnhancedEstimates.class);
         mHardProps = mock(HardwarePropertiesManager.class);
 
         mContext.putComponent(StatusBar.class, mock(StatusBar.class));
@@ -142,8 +144,44 @@
     }
 
     @Test
+    public void testShouldShowLowBatteryWarning_showHybridOnly_overrideThresholdHigh_returnsNoShow() {
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold())
+                .thenReturn(Duration.ofHours(1).toMillis());
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
+        mPowerUI.start();
+
+        // unplugged device that would not show the non-hybrid notification but would show the
+        // hybrid but the threshold has been overriden to be too low
+        boolean shouldShow =
+                mPowerUI.shouldShowLowBatteryWarning(UNPLUGGED, UNPLUGGED, ABOVE_WARNING_BUCKET,
+                        ABOVE_WARNING_BUCKET, Long.MAX_VALUE, BELOW_HYBRID_THRESHOLD,
+                        POWER_SAVER_OFF, BatteryManager.BATTERY_HEALTH_GOOD);
+        assertFalse(shouldShow);
+    }
+
+    @Test
+    public void testShouldShowLowBatteryWarning_showHybridOnly_overrideThresholdHigh_returnsShow() {
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold())
+                .thenReturn(Duration.ofHours(5).toMillis());
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
+        mPowerUI.start();
+
+        // unplugged device that would not show the non-hybrid notification but would show the
+        // hybrid since the threshold has been overriden to be much higher
+        boolean shouldShow =
+                mPowerUI.shouldShowLowBatteryWarning(UNPLUGGED, UNPLUGGED, ABOVE_WARNING_BUCKET,
+                        ABOVE_WARNING_BUCKET, Long.MAX_VALUE, ABOVE_HYBRID_THRESHOLD,
+                        POWER_SAVER_OFF, BatteryManager.BATTERY_HEALTH_GOOD);
+        assertTrue(shouldShow);
+    }
+
+    @Test
     public void testShouldShowLowBatteryWarning_showHybridOnly_returnsShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // unplugged device that would not show the non-hybrid notification but would show the
@@ -157,7 +195,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_showHybrid_showStandard_returnsShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // unplugged device that would show the non-hybrid notification and the hybrid
@@ -170,7 +210,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_showStandardOnly_returnsShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // unplugged device that would show the non-hybrid but not the hybrid
@@ -183,7 +225,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_deviceHighBattery_returnsNoShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // unplugged device that would show the neither due to battery level being good
@@ -196,7 +240,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_devicePlugged_returnsNoShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // plugged device that would show the neither due to being plugged
@@ -209,7 +255,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_deviceBatteryStatusUnkown_returnsNoShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // Unknown battery status device that would show the neither due
@@ -222,7 +270,9 @@
 
     @Test
     public void testShouldShowLowBatteryWarning_batterySaverEnabled_returnsNoShow() {
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
         mPowerUI.start();
 
         // BatterySaverEnabled device that would show the neither due to battery saver
@@ -236,7 +286,10 @@
     @Test
     public void testShouldDismissLowBatteryWarning_dismissWhenPowerSaverEnabled() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
+
         // device that gets power saver turned on should dismiss
         boolean shouldDismiss =
                 mPowerUI.shouldDismissLowBatteryWarning(UNPLUGGED, BELOW_WARNING_BUCKET,
@@ -247,7 +300,9 @@
     @Test
     public void testShouldDismissLowBatteryWarning_dismissWhenPlugged() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
 
         // device that gets plugged in should dismiss
         boolean shouldDismiss =
@@ -259,7 +314,10 @@
     @Test
     public void testShouldDismissLowBatteryWarning_dismissHybridSignal_showStandardSignal_shouldShow() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
+
         // would dismiss hybrid but not non-hybrid should not dismiss
         boolean shouldDismiss =
                 mPowerUI.shouldDismissLowBatteryWarning(UNPLUGGED, BELOW_WARNING_BUCKET,
@@ -270,7 +328,9 @@
     @Test
     public void testShouldDismissLowBatteryWarning_showHybridSignal_dismissStandardSignal_shouldShow() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
 
         // would dismiss non-hybrid but not hybrid should not dismiss
         boolean shouldDismiss =
@@ -282,7 +342,9 @@
     @Test
     public void testShouldDismissLowBatteryWarning_showBothSignal_shouldShow() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
 
         // should not dismiss when both would not dismiss
         boolean shouldDismiss =
@@ -294,7 +356,9 @@
     @Test
     public void testShouldDismissLowBatteryWarning_dismissBothSignal_shouldDismiss() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(true);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
 
         //should dismiss if both would dismiss
         boolean shouldDismiss =
@@ -306,7 +370,9 @@
     @Test
     public void testShouldDismissLowBatteryWarning_dismissStandardSignal_hybridDisabled_shouldDismiss() {
         mPowerUI.start();
-        when(mEnhacedEstimates.isHybridNotificationEnabled()).thenReturn(false);
+        when(mEnhancedEstimates.isHybridNotificationEnabled()).thenReturn(false);
+        when(mEnhancedEstimates.getLowWarningThreshold()).thenReturn(PowerUI.THREE_HOURS_IN_MILLIS);
+        when(mEnhancedEstimates.getSevereWarningThreshold()).thenReturn(ONE_HOUR_MILLIS);
 
         // would dismiss non-hybrid with hybrid disabled should dismiss
         boolean shouldDismiss =
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NonPhoneDependencyTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NonPhoneDependencyTest.java
new file mode 100644
index 0000000..5f763a4
--- /dev/null
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NonPhoneDependencyTest.java
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.statusbar;
+
+import static org.junit.Assert.assertFalse;
+import static org.mockito.Mockito.when;
+
+import android.os.Handler;
+import android.os.Looper;
+import android.support.test.filters.SmallTest;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+
+import com.android.systemui.Dependency;
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.statusbar.phone.NotificationGroupManager;
+import com.android.systemui.statusbar.phone.StatusBarWindowManager;
+import com.android.systemui.statusbar.policy.HeadsUpManager;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+
+/**
+ * Verifies that particular sets of dependencies don't have dependencies on others. For example,
+ * code managing notifications shouldn't directly depend on StatusBar, since there are platforms
+ * which want to manage notifications, but don't use StatusBar.
+ */
+@SmallTest
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper
+public class NonPhoneDependencyTest extends SysuiTestCase {
+    @Mock private NotificationPresenter mPresenter;
+    @Mock private NotificationListContainer mListContainer;
+    @Mock private NotificationEntryManager.Callback mEntryManagerCallback;
+    @Mock private HeadsUpManager mHeadsUpManager;
+    @Mock private RemoteInputController.Delegate mDelegate;
+    @Mock private NotificationInfo.CheckSaveListener mCheckSaveListener;
+    @Mock private NotificationGutsManager.OnSettingsClickListener mOnClickListener;
+    @Mock private NotificationRemoteInputManager.Callback mRemoteInputManagerCallback;
+
+    private Handler mHandler;
+
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+        mHandler = new Handler(Looper.getMainLooper());
+        when(mPresenter.getHandler()).thenReturn(mHandler);
+    }
+
+    @Test
+    public void testNotificationManagementCodeHasNoDependencyOnStatusBarWindowManager() {
+        NotificationEntryManager entryManager = Dependency.get(NotificationEntryManager.class);
+        NotificationGutsManager gutsManager = Dependency.get(NotificationGutsManager.class);
+        NotificationListener notificationListener = Dependency.get(NotificationListener.class);
+        NotificationLogger notificationLogger = Dependency.get(NotificationLogger.class);
+        NotificationMediaManager mediaManager = Dependency.get(NotificationMediaManager.class);
+        NotificationRemoteInputManager remoteInputManager =
+                Dependency.get(NotificationRemoteInputManager.class);
+        NotificationLockscreenUserManager lockscreenUserManager =
+                Dependency.get(NotificationLockscreenUserManager.class);
+        NotificationViewHierarchyManager viewHierarchyManager =
+                Dependency.get(NotificationViewHierarchyManager.class);
+
+        when(mPresenter.getNotificationLockscreenUserManager()).thenReturn(lockscreenUserManager);
+        when(mPresenter.getGroupManager()).thenReturn(
+                Dependency.get(NotificationGroupManager.class));
+
+        entryManager.setUpWithPresenter(mPresenter, mListContainer, mEntryManagerCallback,
+                mHeadsUpManager);
+        gutsManager.setUpWithPresenter(mPresenter, entryManager, mListContainer,
+                mCheckSaveListener, mOnClickListener);
+        notificationListener.setUpWithPresenter(mPresenter, entryManager);
+        notificationLogger.setUpWithEntryManager(entryManager, mListContainer);
+        mediaManager.setUpWithPresenter(mPresenter, entryManager);
+        remoteInputManager.setUpWithPresenter(mPresenter, entryManager, mRemoteInputManagerCallback,
+                mDelegate);
+        lockscreenUserManager.setUpWithPresenter(mPresenter, entryManager);
+        viewHierarchyManager.setUpWithPresenter(mPresenter, entryManager, mListContainer);
+
+        assertFalse(mDependency.hasInstantiatedDependency(StatusBarWindowManager.class));
+    }
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
index d77bf69..8e8b3e0 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/statusbar/NotificationInfoTest.java
@@ -281,6 +281,16 @@
     }
 
     @Test
+    public void testbindNotification_BlockingHelper() throws Exception {
+        mNotificationInfo.bindNotification(mMockPackageManager, mMockINotificationManager,
+                TEST_PACKAGE_NAME, mNotificationChannel, 1, mSbn, null, null,
+                null, null, true);
+        final TextView view = mNotificationInfo.findViewById(R.id.block_prompt);
+        assertEquals(View.VISIBLE, view.getVisibility());
+        assertEquals(mContext.getString(R.string.inline_blocking_helper), view.getText());
+    }
+
+    @Test
     public void testbindNotification_UnblockableTextVisibleWhenAppUnblockable() throws Exception {
         mNotificationInfo.bindNotification(mMockPackageManager, mMockINotificationManager,
                 TEST_PACKAGE_NAME, mNotificationChannel, 1, mSbn, null, null,
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 4144bbd..03dfd46 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -4685,7 +4685,8 @@
     // OS: O MR
     AUTOFILL_SERVICE_DISABLED_SELF = 1135;
 
-    // Counter showing how long it took (in ms) to show the autofill UI after a field was focused
+    // Reports how long it took to show the autofill UI after a field was focused
+    // Tag FIELD_AUTOFILL_DURATION: Duration in ms
     // Tag FIELD_AUTOFILL_SERVICE: Package of service that processed the request
     // Package: Package of the autofill service
     // OS: O MR
@@ -4724,6 +4725,9 @@
     // logged when we cancel an app transition.
     APP_TRANSITION_CANCELLED = 1144;
 
+    // Tag of a field representing a duration on autofill-related metrics.
+    FIELD_AUTOFILL_DURATION = 1145;
+
     // ---- End O-MR1 Constants, all O-MR1 constants go above this line ----
 
     // OPEN: Settings > Network & Internet > Mobile network
@@ -4868,17 +4872,17 @@
 
     // An autofill service asked to disable autofill for a given application.
     // Package: Package of app that is being disabled for autofill
-    // Counter: duration (in ms) that autofill will be disabled
     // OS: P
     // Tag FIELD_AUTOFILL_SERVICE: Package of service that processed the request
+    // Tag FIELD_AUTOFILL_DURATION: duration (in ms) that autofill will be disabled
     AUTOFILL_SERVICE_DISABLED_APP = 1231;
 
     // An autofill service asked to disable autofill for a given activity.
     // Package: Package of app whose activity is being disabled for autofill
-    // Counter: duration (in ms) that autofill will be disabled
     // OS: P
     // Tag FIELD_AUTOFILL_SERVICE: Package of service that processed the request
     // Tag FIELD_CLASS_NAME: Class name of the activity that is being disabled for autofill
+    // Tag FIELD_AUTOFILL_DURATION: duration (in ms) that autofill will be disabled
     AUTOFILL_SERVICE_DISABLED_ACTIVITY = 1232;
 
     // ACTION: Stop an app and turn on background check
@@ -5154,6 +5158,16 @@
     // OS: P
     NOTIFICATION_ZEN_MODE_ENABLE_DIALOG = 1286;
 
+    // ACTION: Rotate suggestion accepted in rotation locked mode
+    // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: P
+    ACTION_ROTATION_SUGGESTION_ACCEPTED = 1287;
+
+    // OPEN: Rotation suggestion shown in rotation locked mode
+    // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: P
+    ROTATION_SUGGESTION_SHOWN = 1288;
+
     // ---- End P Constants, all P constants go above this line ----
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS
diff --git a/proto/src/system_messages.proto b/proto/src/system_messages.proto
index 7c6019e..db70184 100644
--- a/proto/src/system_messages.proto
+++ b/proto/src/system_messages.proto
@@ -196,6 +196,10 @@
     // Inform the user that unexpectedly rapid network usage is happening
     NOTE_NET_RAPID = 45;
 
+    // Notify the user that carrier Wi-Fi networks are available.
+    // Package: android
+    NOTE_CARRIER_NETWORK_AVAILABLE = 46;
+
     // ADD_NEW_IDS_ABOVE_THIS_LINE
     // Legacy IDs with arbitrary values appear below
     // Legacy IDs existed as stable non-conflicting constants prior to the O release
diff --git a/rs/jni/android_renderscript_RenderScript.cpp b/rs/jni/android_renderscript_RenderScript.cpp
index b32be73..52d0e08e 100644
--- a/rs/jni/android_renderscript_RenderScript.cpp
+++ b/rs/jni/android_renderscript_RenderScript.cpp
@@ -24,8 +24,9 @@
 #include <utils/misc.h>
 #include <inttypes.h>
 
+#include <android-base/macros.h>
 #include <androidfw/Asset.h>
-#include <androidfw/AssetManager.h>
+#include <androidfw/AssetManager2.h>
 #include <androidfw/ResourceTypes.h>
 #include <android-base/macros.h>
 
@@ -1664,18 +1665,22 @@
 static jlong
 nFileA3DCreateFromAsset(JNIEnv *_env, jobject _this, jlong con, jobject _assetMgr, jstring _path)
 {
-    AssetManager* mgr = assetManagerForJavaObject(_env, _assetMgr);
+    Guarded<AssetManager2>* mgr = AssetManagerForJavaObject(_env, _assetMgr);
     if (mgr == nullptr) {
         return 0;
     }
 
     AutoJavaStringToUTF8 str(_env, _path);
-    Asset* asset = mgr->open(str.c_str(), Asset::ACCESS_BUFFER);
-    if (asset == nullptr) {
-        return 0;
+    std::unique_ptr<Asset> asset;
+    {
+        ScopedLock<AssetManager2> locked_mgr(*mgr);
+        asset = locked_mgr->Open(str.c_str(), Asset::ACCESS_BUFFER);
+        if (asset == nullptr) {
+            return 0;
+        }
     }
 
-    jlong id = (jlong)(uintptr_t)rsaFileA3DCreateFromAsset((RsContext)con, asset);
+    jlong id = (jlong)(uintptr_t)rsaFileA3DCreateFromAsset((RsContext)con, asset.release());
     return id;
 }
 
@@ -1752,22 +1757,25 @@
 nFontCreateFromAsset(JNIEnv *_env, jobject _this, jlong con, jobject _assetMgr, jstring _path,
                      jfloat fontSize, jint dpi)
 {
-    AssetManager* mgr = assetManagerForJavaObject(_env, _assetMgr);
+    Guarded<AssetManager2>* mgr = AssetManagerForJavaObject(_env, _assetMgr);
     if (mgr == nullptr) {
         return 0;
     }
 
     AutoJavaStringToUTF8 str(_env, _path);
-    Asset* asset = mgr->open(str.c_str(), Asset::ACCESS_BUFFER);
-    if (asset == nullptr) {
-        return 0;
+    std::unique_ptr<Asset> asset;
+    {
+        ScopedLock<AssetManager2> locked_mgr(*mgr);
+        asset = locked_mgr->Open(str.c_str(), Asset::ACCESS_BUFFER);
+        if (asset == nullptr) {
+            return 0;
+        }
     }
 
     jlong id = (jlong)(uintptr_t)rsFontCreateFromMemory((RsContext)con,
                                            str.c_str(), str.length(),
                                            fontSize, dpi,
                                            asset->getBuffer(false), asset->getLength());
-    delete asset;
     return id;
 }
 
diff --git a/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java b/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
index 0bc95f4..52ab85c 100644
--- a/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
+++ b/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
@@ -54,6 +54,9 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 
+import java.util.ArrayDeque;
+import java.util.Queue;
+
 /**
  * This class handles magnification in response to touch events.
  *
@@ -110,6 +113,7 @@
     private static final boolean DEBUG_STATE_TRANSITIONS = false || DEBUG_ALL;
     private static final boolean DEBUG_DETECTING = false || DEBUG_ALL;
     private static final boolean DEBUG_PANNING_SCALING = false || DEBUG_ALL;
+    private static final boolean DEBUG_EVENT_STREAM = false || DEBUG_ALL;
 
     private static final float MIN_SCALE = 2.0f;
     private static final float MAX_SCALE = 5.0f;
@@ -141,6 +145,9 @@
     private PointerCoords[] mTempPointerCoords;
     private PointerProperties[] mTempPointerProperties;
 
+    private final Queue<MotionEvent> mDebugInputEventHistory;
+    private final Queue<MotionEvent> mDebugOutputEventHistory;
+
     /**
      * @param context Context for resolving various magnification-related resources
      * @param magnificationController the {@link MagnificationController}
@@ -179,11 +186,28 @@
             mScreenStateReceiver = null;
         }
 
+        mDebugInputEventHistory = DEBUG_EVENT_STREAM ? new ArrayDeque<>() : null;
+        mDebugOutputEventHistory = DEBUG_EVENT_STREAM ? new ArrayDeque<>() : null;
+
         transitionTo(mDetectingState);
     }
 
     @Override
     public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags) {
+        if (DEBUG_EVENT_STREAM) {
+            storeEventInto(mDebugInputEventHistory, event);
+            try {
+                onMotionEventInternal(event, rawEvent, policyFlags);
+            } catch (Exception e) {
+                throw new RuntimeException(
+                        "Exception following input events: " + mDebugInputEventHistory, e);
+            }
+        } else {
+            onMotionEventInternal(event, rawEvent, policyFlags);
+        }
+    }
+
+    private void onMotionEventInternal(MotionEvent event, MotionEvent rawEvent, int policyFlags) {
         if (DEBUG_ALL) Slog.i(LOG_TAG, "onMotionEvent(" + event + ")");
 
         if ((!mDetectTripleTap && !mDetectShortcutTrigger)
@@ -273,7 +297,27 @@
                     coords, 0, 0, 1.0f, 1.0f, event.getDeviceId(), 0, event.getSource(),
                     event.getFlags());
         }
-        super.onMotionEvent(event, rawEvent, policyFlags);
+        if (DEBUG_EVENT_STREAM) {
+            storeEventInto(mDebugOutputEventHistory, event);
+            try {
+                super.onMotionEvent(event, rawEvent, policyFlags);
+            } catch (Exception e) {
+                throw new RuntimeException(
+                        "Exception downstream following input events: " + mDebugInputEventHistory
+                                + "\nTransformed into output events: " + mDebugOutputEventHistory,
+                        e);
+            }
+        } else {
+            super.onMotionEvent(event, rawEvent, policyFlags);
+        }
+    }
+
+    private static void storeEventInto(Queue<MotionEvent> queue, MotionEvent event) {
+        queue.add(MotionEvent.obtain(event));
+        // Prune old events
+        while (!queue.isEmpty() && (event.getEventTime() - queue.peek().getEventTime() > 5000)) {
+            queue.remove().recycle();
+        }
     }
 
     private PointerCoords[] getTempPointerCoordsWithMinSize(int size) {
@@ -544,6 +588,9 @@
 
         @Override
         public void onMotionEvent(MotionEvent event, MotionEvent rawEvent, int policyFlags) {
+
+        	// Ensure that the state at the end of delegation is consistent with the last delegated
+            // UP/DOWN event in queue: still delegating if pointer is down, detecting otherwise
             switch (event.getActionMasked()) {
                 case ACTION_UP:
                 case ACTION_CANCEL: {
@@ -551,9 +598,11 @@
                 } break;
 
                 case ACTION_DOWN: {
+                	transitionTo(mDelegatingState);
                     mLastDelegatedDownEventTime = event.getDownTime();
                 } break;
             }
+
             if (getNext() != null) {
                 // We cache some events to see if the user wants to trigger magnification.
                 // If no magnification is triggered we inject these events with adjusted
diff --git a/services/autofill/java/com/android/server/autofill/AutofillManagerServiceImpl.java b/services/autofill/java/com/android/server/autofill/AutofillManagerServiceImpl.java
index 07b0b77..eb031f3 100644
--- a/services/autofill/java/com/android/server/autofill/AutofillManagerServiceImpl.java
+++ b/services/autofill/java/com/android/server/autofill/AutofillManagerServiceImpl.java
@@ -1066,7 +1066,7 @@
             int intDuration = duration > Integer.MAX_VALUE ? Integer.MAX_VALUE : (int) duration;
             mMetricsLogger.write(Helper.newLogMaker(MetricsEvent.AUTOFILL_SERVICE_DISABLED_APP,
                     packageName, getServicePackageName())
-                    .setCounterValue(intDuration));
+                    .addTaggedData(MetricsEvent.FIELD_AUTOFILL_DURATION, intDuration));
         }
     }
 
@@ -1090,7 +1090,7 @@
             mMetricsLogger.write(new LogMaker(MetricsEvent.AUTOFILL_SERVICE_DISABLED_ACTIVITY)
                     .setComponentName(componentName)
                     .addTaggedData(MetricsEvent.FIELD_AUTOFILL_SERVICE, getServicePackageName())
-                    .setCounterValue(intDuration));
+                    .addTaggedData(MetricsEvent.FIELD_AUTOFILL_DURATION, intDuration));
         }
     }
 
diff --git a/services/autofill/java/com/android/server/autofill/Session.java b/services/autofill/java/com/android/server/autofill/Session.java
index e1fb3a7..6b44fa5 100644
--- a/services/autofill/java/com/android/server/autofill/Session.java
+++ b/services/autofill/java/com/android/server/autofill/Session.java
@@ -1860,7 +1860,7 @@
                 mUiLatencyHistory.log(historyLog.toString());
 
                 final LogMaker metricsLog = newLogMaker(MetricsEvent.AUTOFILL_UI_LATENCY)
-                        .setCounterValue((int) duration);
+                        .addTaggedData(MetricsEvent.FIELD_AUTOFILL_DURATION, duration);
                 mMetricsLogger.write(metricsLog);
             }
         }
diff --git a/services/backup/java/com/android/server/backup/DataChangedJournal.java b/services/backup/java/com/android/server/backup/DataChangedJournal.java
index 9360c85..c2d3829 100644
--- a/services/backup/java/com/android/server/backup/DataChangedJournal.java
+++ b/services/backup/java/com/android/server/backup/DataChangedJournal.java
@@ -33,7 +33,7 @@
  * <p>This information is persisted to the filesystem so that it is not lost in the event of a
  * reboot.
  */
-public final class DataChangedJournal {
+public class DataChangedJournal {
     private static final String FILE_NAME_PREFIX = "journal";
 
     /**
diff --git a/services/backup/java/com/android/server/backup/KeyValueAdbBackupEngine.java b/services/backup/java/com/android/server/backup/KeyValueAdbBackupEngine.java
index b38b25a..42785be 100644
--- a/services/backup/java/com/android/server/backup/KeyValueAdbBackupEngine.java
+++ b/services/backup/java/com/android/server/backup/KeyValueAdbBackupEngine.java
@@ -153,8 +153,9 @@
                     OP_TYPE_BACKUP_WAIT);
 
             // Start backup and wait for BackupManagerService to get callback for success or timeout
-            agent.doBackup(mSavedState, mBackupData, mNewState, Long.MAX_VALUE, token,
-                    mBackupManagerService.getBackupManagerBinder());
+            agent.doBackup(
+                    mSavedState, mBackupData, mNewState, Long.MAX_VALUE, token,
+                    mBackupManagerService.getBackupManagerBinder(), /*transportFlags=*/ 0);
             if (!mBackupManagerService.waitUntilOperationComplete(token)) {
                 Slog.e(TAG, "Key-value backup failed on package " + packageName);
                 return false;
diff --git a/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java b/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
index 465bb09..dc20d31 100644
--- a/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
+++ b/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
@@ -65,6 +65,7 @@
 import android.os.Binder;
 import android.os.Bundle;
 import android.os.Environment;
+import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.IBinder;
 import android.os.Message;
@@ -387,7 +388,7 @@
         mWakelock = wakelock;
     }
 
-    public BackupHandler getBackupHandler() {
+    public Handler getBackupHandler() {
         return mBackupHandler;
     }
 
diff --git a/services/backup/java/com/android/server/backup/fullbackup/FullBackupEngine.java b/services/backup/java/com/android/server/backup/fullbackup/FullBackupEngine.java
index 3bf77e8..d460f4d 100644
--- a/services/backup/java/com/android/server/backup/fullbackup/FullBackupEngine.java
+++ b/services/backup/java/com/android/server/backup/fullbackup/FullBackupEngine.java
@@ -74,6 +74,7 @@
     PackageInfo mPkg;
     private final long mQuota;
     private final int mOpToken;
+    private final int mTransportFlags;
 
     class FullBackupRunner implements Runnable {
 
@@ -100,7 +101,8 @@
         @Override
         public void run() {
             try {
-                FullBackupDataOutput output = new FullBackupDataOutput(mPipe);
+                FullBackupDataOutput output = new FullBackupDataOutput(
+                        mPipe, -1, mTransportFlags);
 
                 if (mWriteManifest) {
                     final boolean writeWidgetData = mWidgetData != null;
@@ -147,7 +149,7 @@
                                 mTimeoutMonitor /* in parent class */,
                                 OP_TYPE_BACKUP_WAIT);
                 mAgent.doFullBackup(mPipe, mQuota, mToken,
-                        backupManagerService.getBackupManagerBinder());
+                        backupManagerService.getBackupManagerBinder(), mTransportFlags);
             } catch (IOException e) {
                 Slog.e(TAG, "Error running full backup for " + mPackage.packageName);
             } catch (RemoteException e) {
@@ -164,7 +166,8 @@
     public FullBackupEngine(RefactoredBackupManagerService backupManagerService,
             OutputStream output,
             FullBackupPreflight preflightHook, PackageInfo pkg,
-            boolean alsoApks, BackupRestoreTask timeoutMonitor, long quota, int opToken) {
+            boolean alsoApks, BackupRestoreTask timeoutMonitor, long quota, int opToken,
+            int transportFlags) {
         this.backupManagerService = backupManagerService;
         mOutput = output;
         mPreflightHook = preflightHook;
@@ -176,6 +179,7 @@
         mMetadataFile = new File(mFilesDir, BACKUP_METADATA_FILENAME);
         mQuota = quota;
         mOpToken = opToken;
+        mTransportFlags = transportFlags;
     }
 
     public int preflightCheck() throws RemoteException {
diff --git a/services/backup/java/com/android/server/backup/fullbackup/PerformAdbBackupTask.java b/services/backup/java/com/android/server/backup/fullbackup/PerformAdbBackupTask.java
index f0b3e4a..19e601b 100644
--- a/services/backup/java/com/android/server/backup/fullbackup/PerformAdbBackupTask.java
+++ b/services/backup/java/com/android/server/backup/fullbackup/PerformAdbBackupTask.java
@@ -410,7 +410,8 @@
                                 SHARED_BACKUP_AGENT_PACKAGE);
 
                 mBackupEngine = new FullBackupEngine(backupManagerService, out,
-                        null, pkg, mIncludeApks, this, Long.MAX_VALUE, mCurrentOpToken);
+                        null, pkg, mIncludeApks, this, Long.MAX_VALUE,
+                        mCurrentOpToken, /*transportFlags=*/ 0);
                 sendOnBackupPackage(isSharedStorage ? "Shared storage" : pkg.packageName);
 
                 // Don't need to check preflight result as there is no preflight hook.
diff --git a/services/backup/java/com/android/server/backup/fullbackup/PerformFullTransportBackupTask.java b/services/backup/java/com/android/server/backup/fullbackup/PerformFullTransportBackupTask.java
index d5b3d98..d04be12 100644
--- a/services/backup/java/com/android/server/backup/fullbackup/PerformFullTransportBackupTask.java
+++ b/services/backup/java/com/android/server/backup/fullbackup/PerformFullTransportBackupTask.java
@@ -378,7 +378,8 @@
                         enginePipes = ParcelFileDescriptor.createPipe();
                         mBackupRunner =
                                 new SinglePackageBackupRunner(enginePipes[1], currentPackage,
-                                        mTransportClient, quota, mBackupRunnerOpToken);
+                                        mTransportClient, quota, mBackupRunnerOpToken,
+                                        transport.getTransportFlags());
                         // The runner dup'd the pipe half, so we close it here
                         enginePipes[1].close();
                         enginePipes[1] = null;
@@ -681,12 +682,17 @@
         final TransportClient mTransportClient;
         final long mQuota;
         private final int mCurrentOpToken;
+        private final int mTransportFlags;
 
         SinglePackageBackupPreflight(
-                TransportClient transportClient, long quota, int currentOpToken) {
+                TransportClient transportClient,
+                long quota,
+                int currentOpToken,
+                int transportFlags) {
             mTransportClient = transportClient;
             mQuota = quota;
             mCurrentOpToken = currentOpToken;
+            mTransportFlags = transportFlags;
         }
 
         @Override
@@ -700,7 +706,7 @@
                     Slog.d(TAG, "Preflighting full payload of " + pkg.packageName);
                 }
                 agent.doMeasureFullBackup(mQuota, mCurrentOpToken,
-                        backupManagerService.getBackupManagerBinder());
+                        backupManagerService.getBackupManagerBinder(), mTransportFlags);
 
                 // Now wait to get our result back.  If this backstop timeout is reached without
                 // the latch being thrown, flow will continue as though a result or "normal"
@@ -785,20 +791,23 @@
         private volatile int mBackupResult;
         private final long mQuota;
         private volatile boolean mIsCancelled;
+        private final int mTransportFlags;
 
         SinglePackageBackupRunner(ParcelFileDescriptor output, PackageInfo target,
-                TransportClient transportClient, long quota, int currentOpToken)
+                TransportClient transportClient, long quota, int currentOpToken, int transportFlags)
                 throws IOException {
             mOutput = ParcelFileDescriptor.dup(output.getFileDescriptor());
             mTarget = target;
             mCurrentOpToken = currentOpToken;
             mEphemeralToken = backupManagerService.generateRandomIntegerToken();
-            mPreflight = new SinglePackageBackupPreflight(transportClient, quota, mEphemeralToken);
+            mPreflight = new SinglePackageBackupPreflight(
+                    transportClient, quota, mEphemeralToken, transportFlags);
             mPreflightLatch = new CountDownLatch(1);
             mBackupLatch = new CountDownLatch(1);
             mPreflightResult = BackupTransport.AGENT_ERROR;
             mBackupResult = BackupTransport.AGENT_ERROR;
             mQuota = quota;
+            mTransportFlags = transportFlags;
             registerTask();
         }
 
@@ -819,7 +828,7 @@
         public void run() {
             FileOutputStream out = new FileOutputStream(mOutput.getFileDescriptor());
             mEngine = new FullBackupEngine(backupManagerService, out, mPreflight, mTarget, false,
-                    this, mQuota, mCurrentOpToken);
+                    this, mQuota, mCurrentOpToken, mTransportFlags);
             try {
                 try {
                     if (!mIsCancelled) {
diff --git a/services/backup/java/com/android/server/backup/internal/PerformBackupTask.java b/services/backup/java/com/android/server/backup/internal/PerformBackupTask.java
index 99ffa12..bacb357 100644
--- a/services/backup/java/com/android/server/backup/internal/PerformBackupTask.java
+++ b/services/backup/java/com/android/server/backup/internal/PerformBackupTask.java
@@ -714,8 +714,9 @@
                     mEphemeralOpToken, TIMEOUT_BACKUP_INTERVAL, this, OP_TYPE_BACKUP_WAIT);
             backupManagerService.addBackupTrace("calling agent doBackup()");
 
-            agent.doBackup(mSavedState, mBackupData, mNewState, quota, mEphemeralOpToken,
-                    backupManagerService.getBackupManagerBinder());
+            agent.doBackup(
+                    mSavedState, mBackupData, mNewState, quota, mEphemeralOpToken,
+                    backupManagerService.getBackupManagerBinder(), transport.getTransportFlags());
         } catch (Exception e) {
             Slog.e(TAG, "Error invoking for backup on " + packageName + ". " + e);
             backupManagerService.addBackupTrace("exception: " + e);
diff --git a/services/backup/java/com/android/server/backup/restore/ActiveRestoreSession.java b/services/backup/java/com/android/server/backup/restore/ActiveRestoreSession.java
index 7ae5b43..82106ec 100644
--- a/services/backup/java/com/android/server/backup/restore/ActiveRestoreSession.java
+++ b/services/backup/java/com/android/server/backup/restore/ActiveRestoreSession.java
@@ -30,6 +30,7 @@
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.Binder;
+import android.os.Handler;
 import android.os.Message;
 import android.os.PowerManager;
 import android.util.Slog;
@@ -374,7 +375,7 @@
         }
 
         // Stop the session timeout until we finalize the restore
-        BackupHandler backupHandler = mBackupManagerService.getBackupHandler();
+        Handler backupHandler = mBackupManagerService.getBackupHandler();
         backupHandler.removeMessages(MSG_RESTORE_SESSION_TIMEOUT);
 
         PowerManager.WakeLock wakelock = mBackupManagerService.getWakelock();
diff --git a/services/backup/java/com/android/server/backup/transport/TransportClient.java b/services/backup/java/com/android/server/backup/transport/TransportClient.java
index 7b2e3df..1a2ca92 100644
--- a/services/backup/java/com/android/server/backup/transport/TransportClient.java
+++ b/services/backup/java/com/android/server/backup/transport/TransportClient.java
@@ -33,7 +33,7 @@
 import android.text.format.DateFormat;
 import android.util.ArrayMap;
 import android.util.EventLog;
-import android.util.Log;
+import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
@@ -41,9 +41,13 @@
 import com.android.internal.util.Preconditions;
 import com.android.server.EventLogTags;
 import com.android.server.backup.TransportManager;
+import com.android.server.backup.transport.TransportUtils.Priority;
+
+import dalvik.system.CloseGuard;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
@@ -70,17 +74,20 @@
  * @see TransportManager
  */
 public class TransportClient {
-    private static final String TAG = "TransportClient";
+    @VisibleForTesting static final String TAG = "TransportClient";
     private static final int LOG_BUFFER_SIZE = 5;
 
     private final Context mContext;
     private final Intent mBindIntent;
+    private final ServiceConnection mConnection;
     private final String mIdentifier;
+    private final String mCreatorLogString;
     private final ComponentName mTransportComponent;
     private final Handler mListenerHandler;
     private final String mPrefixForLog;
     private final Object mStateLock = new Object();
     private final Object mLogBufferLock = new Object();
+    private final CloseGuard mCloseGuard = CloseGuard.get();
 
     @GuardedBy("mLogBufferLock")
     private final List<String> mLogBuffer = new LinkedList<>();
@@ -99,12 +106,14 @@
             Context context,
             Intent bindIntent,
             ComponentName transportComponent,
-            String identifier) {
+            String identifier,
+            String caller) {
         this(
                 context,
                 bindIntent,
                 transportComponent,
                 identifier,
+                caller,
                 new Handler(Looper.getMainLooper()));
     }
 
@@ -114,79 +123,27 @@
             Intent bindIntent,
             ComponentName transportComponent,
             String identifier,
+            String caller,
             Handler listenerHandler) {
         mContext = context;
         mTransportComponent = transportComponent;
         mBindIntent = bindIntent;
         mIdentifier = identifier;
+        mCreatorLogString = caller;
         mListenerHandler = listenerHandler;
+        mConnection = new TransportConnection(context, this);
 
         // For logging
         String classNameForLog = mTransportComponent.getShortClassName().replaceFirst(".*\\.", "");
         mPrefixForLog = classNameForLog + "#" + mIdentifier + ":";
+
+        mCloseGuard.open("markAsDisposed");
     }
 
     public ComponentName getTransportComponent() {
         return mTransportComponent;
     }
 
-    // Calls to onServiceDisconnected() or onBindingDied() turn TransportClient UNUSABLE. After one
-    // of these calls, if a binding happen again the new service can be a different instance. Since
-    // transports are stateful, we don't want a new instance responding for an old instance's state.
-    private ServiceConnection mConnection =
-            new ServiceConnection() {
-                @Override
-                public void onServiceConnected(ComponentName componentName, IBinder binder) {
-                    IBackupTransport transport = IBackupTransport.Stub.asInterface(binder);
-                    synchronized (mStateLock) {
-                        checkStateIntegrityLocked();
-
-                        if (mState != State.UNUSABLE) {
-                            log(Log.DEBUG, "Transport connected");
-                            setStateLocked(State.CONNECTED, transport);
-                            notifyListenersAndClearLocked(transport);
-                        }
-                    }
-                }
-
-                @Override
-                public void onServiceDisconnected(ComponentName componentName) {
-                    synchronized (mStateLock) {
-                        log(Log.ERROR, "Service disconnected: client UNUSABLE");
-                        setStateLocked(State.UNUSABLE, null);
-                        // After unbindService() no calls back to mConnection
-                        mContext.unbindService(this);
-                    }
-                }
-
-                @Override
-                public void onBindingDied(ComponentName name) {
-                    synchronized (mStateLock) {
-                        checkStateIntegrityLocked();
-
-                        log(Log.ERROR, "Binding died: client UNUSABLE");
-                        // After unbindService() no calls back to mConnection
-                        switch (mState) {
-                            case State.UNUSABLE:
-                                break;
-                            case State.IDLE:
-                                log(Log.ERROR, "Unexpected state transition IDLE => UNUSABLE");
-                                setStateLocked(State.UNUSABLE, null);
-                                break;
-                            case State.BOUND_AND_CONNECTING:
-                                setStateLocked(State.UNUSABLE, null);
-                                mContext.unbindService(this);
-                                notifyListenersAndClearLocked(null);
-                                break;
-                            case State.CONNECTED:
-                                setStateLocked(State.UNUSABLE, null);
-                                mContext.unbindService(this);
-                                break;
-                        }
-                    }
-                }
-            };
-
     /**
      * Attempts to connect to the transport (if needed).
      *
@@ -240,7 +197,7 @@
 
             switch (mState) {
                 case State.UNUSABLE:
-                    log(Log.WARN, caller, "Async connect: UNUSABLE client");
+                    log(Priority.WARN, caller, "Async connect: UNUSABLE client");
                     notifyListener(listener, null, caller);
                     break;
                 case State.IDLE:
@@ -254,22 +211,25 @@
                         // We don't need to set a time-out because we are guaranteed to get a call
                         // back in ServiceConnection, either an onServiceConnected() or
                         // onBindingDied().
-                        log(Log.DEBUG, caller, "Async connect: service bound, connecting");
+                        log(Priority.DEBUG, caller, "Async connect: service bound, connecting");
                         setStateLocked(State.BOUND_AND_CONNECTING, null);
                         mListeners.put(listener, caller);
                     } else {
-                        log(Log.ERROR, "Async connect: bindService returned false");
+                        log(Priority.ERROR, "Async connect: bindService returned false");
                         // mState remains State.IDLE
                         mContext.unbindService(mConnection);
                         notifyListener(listener, null, caller);
                     }
                     break;
                 case State.BOUND_AND_CONNECTING:
-                    log(Log.DEBUG, caller, "Async connect: already connecting, adding listener");
+                    log(
+                            Priority.DEBUG,
+                            caller,
+                            "Async connect: already connecting, adding listener");
                     mListeners.put(listener, caller);
                     break;
                 case State.CONNECTED:
-                    log(Log.DEBUG, caller, "Async connect: reusing transport");
+                    log(Priority.DEBUG, caller, "Async connect: reusing transport");
                     notifyListener(listener, mTransport, caller);
                     break;
             }
@@ -286,7 +246,7 @@
         synchronized (mStateLock) {
             checkStateIntegrityLocked();
 
-            log(Log.DEBUG, caller, "Unbind requested (was " + stateToString(mState) + ")");
+            log(Priority.DEBUG, caller, "Unbind requested (was " + stateToString(mState) + ")");
             switch (mState) {
                 case State.UNUSABLE:
                 case State.IDLE:
@@ -305,6 +265,15 @@
         }
     }
 
+    /** Marks this TransportClient as disposed, allowing it to be GC'ed without warnings. */
+    public void markAsDisposed() {
+        synchronized (mStateLock) {
+            Preconditions.checkState(
+                    mState < State.BOUND_AND_CONNECTING, "Can't mark as disposed if still bound");
+            mCloseGuard.close();
+        }
+    }
+
     /**
      * Attempts to connect to the transport (if needed) and returns it.
      *
@@ -335,14 +304,14 @@
 
         IBackupTransport transport = mTransport;
         if (transport != null) {
-            log(Log.INFO, caller, "Sync connect: reusing transport");
+            log(Priority.DEBUG, caller, "Sync connect: reusing transport");
             return transport;
         }
 
         // If it's already UNUSABLE we return straight away, no need to go to main-thread
         synchronized (mStateLock) {
             if (mState == State.UNUSABLE) {
-                log(Log.WARN, caller, "Sync connect: UNUSABLE client");
+                log(Priority.WARN, caller, "Sync connect: UNUSABLE client");
                 return null;
             }
         }
@@ -352,14 +321,14 @@
                 (requestedTransport, transportClient) ->
                         transportFuture.complete(requestedTransport);
 
-        log(Log.DEBUG, caller, "Sync connect: calling async");
+        log(Priority.DEBUG, caller, "Sync connect: calling async");
         connectAsync(requestListener, caller);
 
         try {
             return transportFuture.get();
         } catch (InterruptedException | ExecutionException e) {
             String error = e.getClass().getSimpleName();
-            log(Log.ERROR, caller, error + " while waiting for transport: " + e.getMessage());
+            log(Priority.ERROR, caller, error + " while waiting for transport: " + e.getMessage());
             return null;
         }
     }
@@ -379,7 +348,7 @@
     public IBackupTransport connectOrThrow(String caller) throws TransportNotAvailableException {
         IBackupTransport transport = connect(caller);
         if (transport == null) {
-            log(Log.ERROR, caller, "Transport connection failed");
+            log(Priority.ERROR, caller, "Transport connection failed");
             throw new TransportNotAvailableException();
         }
         return transport;
@@ -398,7 +367,7 @@
             throws TransportNotAvailableException {
         IBackupTransport transport = mTransport;
         if (transport == null) {
-            log(Log.ERROR, caller, "Transport not connected");
+            log(Priority.ERROR, caller, "Transport not connected");
             throw new TransportNotAvailableException();
         }
         return transport;
@@ -413,12 +382,92 @@
                 + "}";
     }
 
+    @Override
+    protected void finalize() throws Throwable {
+        synchronized (mStateLock) {
+            mCloseGuard.warnIfOpen();
+            if (mState >= State.BOUND_AND_CONNECTING) {
+                String callerLogString = "TransportClient.finalize()";
+                log(
+                        Priority.ERROR,
+                        callerLogString,
+                        "Dangling TransportClient created in [" + mCreatorLogString + "] being "
+                                + "GC'ed. Left bound, unbinding...");
+                try {
+                    unbind(callerLogString);
+                } catch (IllegalStateException e) {
+                    // May throw because there may be a race between this method being called and
+                    // the framework calling any method on the connection with the weak reference
+                    // there already cleared. In this case the connection will unbind before this
+                    // is called. This is fine.
+                }
+            }
+        }
+    }
+
+    private void onServiceConnected(IBinder binder) {
+        IBackupTransport transport = IBackupTransport.Stub.asInterface(binder);
+        synchronized (mStateLock) {
+            checkStateIntegrityLocked();
+
+            if (mState != State.UNUSABLE) {
+                log(Priority.DEBUG, "Transport connected");
+                setStateLocked(State.CONNECTED, transport);
+                notifyListenersAndClearLocked(transport);
+            }
+        }
+    }
+
+    /**
+     * If we are called here the TransportClient becomes UNUSABLE. After one of these calls, if a
+     * binding happen again the new service can be a different instance. Since transports are
+     * stateful, we don't want a new instance responding for an old instance's state.
+     */
+    private void onServiceDisconnected() {
+        synchronized (mStateLock) {
+            log(Priority.ERROR, "Service disconnected: client UNUSABLE");
+            setStateLocked(State.UNUSABLE, null);
+            // After unbindService() no calls back to mConnection
+            mContext.unbindService(mConnection);
+        }
+    }
+
+    /**
+     * If we are called here the TransportClient becomes UNUSABLE for the same reason as in {@link
+     * #onServiceDisconnected()}.
+     */
+    private void onBindingDied() {
+        synchronized (mStateLock) {
+            checkStateIntegrityLocked();
+
+            log(Priority.ERROR, "Binding died: client UNUSABLE");
+            // After unbindService() no calls back to mConnection
+            switch (mState) {
+                case State.UNUSABLE:
+                    break;
+                case State.IDLE:
+                    log(Priority.ERROR, "Unexpected state transition IDLE => UNUSABLE");
+                    setStateLocked(State.UNUSABLE, null);
+                    break;
+                case State.BOUND_AND_CONNECTING:
+                    setStateLocked(State.UNUSABLE, null);
+                    mContext.unbindService(mConnection);
+                    notifyListenersAndClearLocked(null);
+                    break;
+                case State.CONNECTED:
+                    setStateLocked(State.UNUSABLE, null);
+                    mContext.unbindService(mConnection);
+                    break;
+            }
+        }
+    }
+
     private void notifyListener(
             TransportConnectionListener listener,
             @Nullable IBackupTransport transport,
             String caller) {
         String transportString = (transport != null) ? "IBackupTransport" : "null";
-        log(Log.INFO, "Notifying [" + caller + "] transport = " + transportString);
+        log(Priority.INFO, "Notifying [" + caller + "] transport = " + transportString);
         mListenerHandler.post(() -> listener.onTransportConnectionResult(transport, this));
     }
 
@@ -434,7 +483,7 @@
 
     @GuardedBy("mStateLock")
     private void setStateLocked(@State int state, @Nullable IBackupTransport transport) {
-        log(Log.VERBOSE, "State: " + stateToString(mState) + " => " + stateToString(state));
+        log(Priority.VERBOSE, "State: " + stateToString(mState) + " => " + stateToString(state));
         onStateTransition(mState, state);
         mState = state;
         mTransport = transport;
@@ -503,7 +552,7 @@
 
     private void checkState(boolean assertion, String message) {
         if (!assertion) {
-            log(Log.ERROR, message);
+            log(Priority.ERROR, message);
         }
     }
 
@@ -560,9 +609,63 @@
     @IntDef({State.UNUSABLE, State.IDLE, State.BOUND_AND_CONNECTING, State.CONNECTED})
     @Retention(RetentionPolicy.SOURCE)
     private @interface State {
+        // Constant values MUST be in order
         int UNUSABLE = 0;
         int IDLE = 1;
         int BOUND_AND_CONNECTING = 2;
         int CONNECTED = 3;
     }
+
+    /**
+     * This class is a proxy to TransportClient methods that doesn't hold a strong reference to the
+     * TransportClient, allowing it to be GC'ed. If the reference was lost it logs a message.
+     */
+    private static class TransportConnection implements ServiceConnection {
+        private final Context mContext;
+        private final WeakReference<TransportClient> mTransportClientRef;
+
+        private TransportConnection(Context context, TransportClient transportClient) {
+            mContext = context;
+            mTransportClientRef = new WeakReference<>(transportClient);
+        }
+
+        @Override
+        public void onServiceConnected(ComponentName transportComponent, IBinder binder) {
+            TransportClient transportClient = mTransportClientRef.get();
+            if (transportClient == null) {
+                referenceLost("TransportConnection.onServiceConnected()");
+                return;
+            }
+            transportClient.onServiceConnected(binder);
+        }
+
+        @Override
+        public void onServiceDisconnected(ComponentName transportComponent) {
+            TransportClient transportClient = mTransportClientRef.get();
+            if (transportClient == null) {
+                referenceLost("TransportConnection.onServiceDisconnected()");
+                return;
+            }
+            transportClient.onServiceDisconnected();
+        }
+
+        @Override
+        public void onBindingDied(ComponentName transportComponent) {
+            TransportClient transportClient = mTransportClientRef.get();
+            if (transportClient == null) {
+                referenceLost("TransportConnection.onBindingDied()");
+                return;
+            }
+            transportClient.onBindingDied();
+        }
+
+        /** @see TransportClient#finalize() */
+        private void referenceLost(String caller) {
+            mContext.unbindService(this);
+            TransportUtils.log(
+                    Priority.INFO,
+                    TAG,
+                    caller + " called but TransportClient reference has been GC'ed");
+        }
+    }
 }
diff --git a/services/backup/java/com/android/server/backup/transport/TransportClientManager.java b/services/backup/java/com/android/server/backup/transport/TransportClientManager.java
index 1132bce..4041932 100644
--- a/services/backup/java/com/android/server/backup/transport/TransportClientManager.java
+++ b/services/backup/java/com/android/server/backup/transport/TransportClientManager.java
@@ -22,8 +22,10 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
-import android.util.Log;
+
 import com.android.server.backup.TransportManager;
+import com.android.server.backup.transport.TransportUtils.Priority;
+
 import java.io.PrintWriter;
 import java.util.Map;
 import java.util.WeakHashMap;
@@ -63,11 +65,14 @@
                             mContext,
                             bindIntent,
                             transportComponent,
-                            Integer.toString(mTransportClientsCreated));
+                            Integer.toString(mTransportClientsCreated),
+                            caller);
             mTransportClientsCallerMap.put(transportClient, caller);
             mTransportClientsCreated++;
             TransportUtils.log(
-                    Log.DEBUG, TAG, formatMessage(null, caller, "Retrieving " + transportClient));
+                    Priority.DEBUG,
+                    TAG,
+                    formatMessage(null, caller, "Retrieving " + transportClient));
             return transportClient;
         }
     }
@@ -82,9 +87,12 @@
      */
     public void disposeOfTransportClient(TransportClient transportClient, String caller) {
         transportClient.unbind(caller);
+        transportClient.markAsDisposed();
         synchronized (mTransportClientsLock) {
             TransportUtils.log(
-                    Log.DEBUG, TAG, formatMessage(null, caller, "Disposing of " + transportClient));
+                    Priority.DEBUG,
+                    TAG,
+                    formatMessage(null, caller, "Disposing of " + transportClient));
             mTransportClientsCallerMap.remove(transportClient);
         }
     }
diff --git a/services/backup/java/com/android/server/backup/transport/TransportUtils.java b/services/backup/java/com/android/server/backup/transport/TransportUtils.java
index 56b2d44..766d77b 100644
--- a/services/backup/java/com/android/server/backup/transport/TransportUtils.java
+++ b/services/backup/java/com/android/server/backup/transport/TransportUtils.java
@@ -16,6 +16,7 @@
 
 package com.android.server.backup.transport;
 
+import android.annotation.IntDef;
 import android.annotation.Nullable;
 import android.os.DeadObjectException;
 import android.util.Log;
@@ -23,6 +24,9 @@
 
 import com.android.internal.backup.IBackupTransport;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
 /** Utility methods for transport-related operations. */
 public class TransportUtils {
     private static final String TAG = "TransportUtils";
@@ -34,14 +38,16 @@
     public static IBackupTransport checkTransportNotNull(@Nullable IBackupTransport transport)
             throws TransportNotAvailableException {
         if (transport == null) {
-            log(Log.ERROR, TAG, "Transport not available");
+            log(Priority.ERROR, TAG, "Transport not available");
             throw new TransportNotAvailableException();
         }
         return transport;
     }
 
-    static void log(int priority, String tag, String message) {
-        if (Log.isLoggable(tag, priority)) {
+    static void log(@Priority int priority, String tag, String message) {
+        if (priority == Priority.WTF) {
+            Slog.wtf(tag, message);
+        } else if (Log.isLoggable(tag, priority)) {
             Slog.println(priority, tag, message);
         }
     }
@@ -57,5 +63,20 @@
         return string.append(message).toString();
     }
 
+    /**
+     * Create our own constants so we can log WTF using the same APIs. Except for {@link
+     * Priority#WTF} all the others have the same value, so can be used directly
+     */
+    @IntDef({Priority.VERBOSE, Priority.DEBUG, Priority.INFO, Priority.WARN, Priority.WTF})
+    @Retention(RetentionPolicy.SOURCE)
+    @interface Priority {
+        int VERBOSE = Log.VERBOSE;
+        int DEBUG = Log.DEBUG;
+        int INFO = Log.INFO;
+        int WARN = Log.WARN;
+        int ERROR = Log.ERROR;
+        int WTF = -1;
+    }
+
     private TransportUtils() {}
 }
diff --git a/services/core/java/com/android/server/AlarmManagerService.java b/services/core/java/com/android/server/AlarmManagerService.java
index 15c0f3c..342b48e 100644
--- a/services/core/java/com/android/server/AlarmManagerService.java
+++ b/services/core/java/com/android/server/AlarmManagerService.java
@@ -82,6 +82,7 @@
 import java.util.TreeSet;
 import java.util.function.Predicate;
 
+import static android.app.AlarmManager.FLAG_ALLOW_WHILE_IDLE;
 import static android.app.AlarmManager.RTC_WAKEUP;
 import static android.app.AlarmManager.RTC;
 import static android.app.AlarmManager.ELAPSED_REALTIME_WAKEUP;
@@ -175,7 +176,6 @@
     long mNextNonWakeupDeliveryTime;
     long mLastTimeChangeClockTime;
     long mLastTimeChangeRealtime;
-    long mAllowWhileIdleMinTime;
     int mNumTimeChanged;
 
     // Bookkeeping about the identity of the "System UI" package, determined at runtime.
@@ -199,6 +199,12 @@
      */
     final SparseLongArray mLastAllowWhileIdleDispatch = new SparseLongArray();
 
+    /**
+     * For each uid, we store whether the last allow-while-idle alarm was dispatched while
+     * the uid was in foreground or not. We will use the allow_while_idle_short_time in such cases.
+     */
+    final SparseBooleanArray mUseAllowWhileIdleShortTime = new SparseBooleanArray();
+
     final static class IdleDispatchEntry {
         int uid;
         String pkg;
@@ -242,7 +248,6 @@
         private static final String KEY_ALLOW_WHILE_IDLE_WHITELIST_DURATION
                 = "allow_while_idle_whitelist_duration";
         private static final String KEY_LISTENER_TIMEOUT = "listener_timeout";
-        private static final String KEY_BG_RESTRICTIONS_ENABLED = "limit_bg_alarms_enabled";
 
         private static final long DEFAULT_MIN_FUTURITY = 5 * 1000;
         private static final long DEFAULT_MIN_INTERVAL = 60 * 1000;
@@ -277,7 +282,6 @@
 
         public Constants(Handler handler) {
             super(handler);
-            updateAllowWhileIdleMinTimeLocked();
             updateAllowWhileIdleWhitelistDurationLocked();
         }
 
@@ -288,11 +292,6 @@
             updateConstants();
         }
 
-        public void updateAllowWhileIdleMinTimeLocked() {
-            mAllowWhileIdleMinTime = mPendingIdleUntil != null
-                    ? ALLOW_WHILE_IDLE_LONG_TIME : ALLOW_WHILE_IDLE_SHORT_TIME;
-        }
-
         public void updateAllowWhileIdleWhitelistDurationLocked() {
             if (mLastAllowWhileIdleWhitelistDuration != ALLOW_WHILE_IDLE_WHITELIST_DURATION) {
                 mLastAllowWhileIdleWhitelistDuration = ALLOW_WHILE_IDLE_WHITELIST_DURATION;
@@ -330,7 +329,6 @@
                 LISTENER_TIMEOUT = mParser.getLong(KEY_LISTENER_TIMEOUT,
                         DEFAULT_LISTENER_TIMEOUT);
 
-                updateAllowWhileIdleMinTimeLocked();
                 updateAllowWhileIdleWhitelistDurationLocked();
             }
         }
@@ -967,9 +965,6 @@
             }
         }
 
-        // Make sure we are using the correct ALLOW_WHILE_IDLE min time.
-        mConstants.updateAllowWhileIdleMinTimeLocked();
-
         // Reschedule everything.
         rescheduleKernelAlarmsLocked();
         updateNextAlarmClockLocked();
@@ -1421,7 +1416,6 @@
                 return;
             }
         }
-
         if (RECORD_DEVICE_IDLE_ALARMS) {
             if ((a.flags & AlarmManager.FLAG_ALLOW_WHILE_IDLE) != 0) {
                 IdleDispatchEntry ent = new IdleDispatchEntry();
@@ -1472,7 +1466,6 @@
             }
 
             mPendingIdleUntil = a;
-            mConstants.updateAllowWhileIdleMinTimeLocked();
             needRebatch = true;
         } else if ((a.flags&AlarmManager.FLAG_WAKE_FROM_IDLE) != 0) {
             if (mNextWakeFromIdle == null || mNextWakeFromIdle.whenElapsed > a.whenElapsed) {
@@ -1751,6 +1744,15 @@
             if (!blocked) {
                 pw.println("    none");
             }
+            pw.print("  mUseAllowWhileIdleShortTime: [");
+            for (int i = 0; i < mUseAllowWhileIdleShortTime.size(); i++) {
+                if (mUseAllowWhileIdleShortTime.valueAt(i)) {
+                    UserHandle.formatUid(pw, mUseAllowWhileIdleShortTime.keyAt(i));
+                    pw.print(" ");
+                }
+            }
+            pw.println("]");
+
             if (mPendingIdleUntil != null || mPendingWhileIdleAlarms.size() > 0) {
                 pw.println();
                 pw.println("    Idle mode state:");
@@ -1803,9 +1805,6 @@
                 pw.println();
             }
 
-            pw.print("  mAllowWhileIdleMinTime=");
-            TimeUtils.formatDuration(mAllowWhileIdleMinTime, pw);
-            pw.println();
             if (mLastAllowWhileIdleDispatch.size() > 0) {
                 pw.println("  Last allow while idle dispatch times:");
                 for (int i=0; i<mLastAllowWhileIdleDispatch.size(); i++) {
@@ -2072,8 +2071,6 @@
                 f.writeToProto(proto, AlarmManagerServiceProto.OUTSTANDING_DELIVERIES);
             }
 
-            proto.write(AlarmManagerServiceProto.ALLOW_WHILE_IDLE_MIN_DURATION_MS,
-                    mAllowWhileIdleMinTime);
             for (int i = 0; i < mLastAllowWhileIdleDispatch.size(); ++i) {
                 final long token = proto.start(
                         AlarmManagerServiceProto.LAST_ALLOW_WHILE_IDLE_DISPATCH_TIMES);
@@ -2739,6 +2736,7 @@
     }
 
     private boolean isBackgroundRestricted(Alarm alarm) {
+        final boolean allowWhileIdle = (alarm.flags & FLAG_ALLOW_WHILE_IDLE) != 0;
         if (alarm.alarmClock != null) {
             // Don't block alarm clocks
             return false;
@@ -2751,7 +2749,8 @@
         final String sourcePackage =
                 (alarm.operation != null) ? alarm.operation.getCreatorPackage() : alarm.packageName;
         final int sourceUid = alarm.creatorUid;
-        return mForceAppStandbyTracker.areAlarmsRestricted(sourceUid, sourcePackage);
+        return mForceAppStandbyTracker.areAlarmsRestricted(sourceUid, sourcePackage,
+                allowWhileIdle);
     }
 
     private native long init();
@@ -2785,8 +2784,21 @@
                 if ((alarm.flags&AlarmManager.FLAG_ALLOW_WHILE_IDLE) != 0) {
                     // If this is an ALLOW_WHILE_IDLE alarm, we constrain how frequently the app can
                     // schedule such alarms.
-                    long lastTime = mLastAllowWhileIdleDispatch.get(alarm.uid, 0);
-                    long minTime = lastTime + mAllowWhileIdleMinTime;
+                    final long lastTime = mLastAllowWhileIdleDispatch.get(alarm.creatorUid, 0);
+                    final boolean dozing = mPendingIdleUntil != null;
+                    final boolean ebs = mForceAppStandbyTracker.isForceAllAppsStandbyEnabled();
+                    final long minTime;
+                    if (!dozing && !ebs) {
+                        minTime = lastTime + mConstants.ALLOW_WHILE_IDLE_SHORT_TIME;
+                    } else if (dozing) {
+                        minTime = lastTime + mConstants.ALLOW_WHILE_IDLE_LONG_TIME;
+                    } else if (mUseAllowWhileIdleShortTime.get(alarm.creatorUid)) {
+                        // if the last allow-while-idle went off while uid was fg, or the uid
+                        // recently came into fg, don't block the alarm for long.
+                        minTime = lastTime + mConstants.ALLOW_WHILE_IDLE_SHORT_TIME;
+                    } else {
+                        minTime = lastTime + mConstants.ALLOW_WHILE_IDLE_LONG_TIME;
+                    }
                     if (nowELAPSED < minTime) {
                         // Whoops, it hasn't been long enough since the last ALLOW_WHILE_IDLE
                         // alarm went off for this app.  Reschedule the alarm to be in the
@@ -3526,6 +3538,7 @@
 
         @Override public void onUidGone(int uid, boolean disabled) {
             synchronized (mLock) {
+                mUseAllowWhileIdleShortTime.delete(uid);
                 if (disabled) {
                     removeForStoppedLocked(uid);
                 }
@@ -3533,6 +3546,9 @@
         }
 
         @Override public void onUidActive(int uid) {
+            synchronized (mLock) {
+                mUseAllowWhileIdleShortTime.put(uid, true);
+            }
         }
 
         @Override public void onUidIdle(int uid, boolean disabled) {
@@ -3547,7 +3563,6 @@
         }
     };
 
-
     private final Listener mForceAppStandbyListener = new Listener() {
         @Override
         public void unblockAllUnrestrictedAlarms() {
@@ -3829,7 +3844,12 @@
 
             if (allowWhileIdle) {
                 // Record the last time this uid handled an ALLOW_WHILE_IDLE alarm.
-                mLastAllowWhileIdleDispatch.put(alarm.uid, nowELAPSED);
+                mLastAllowWhileIdleDispatch.put(alarm.creatorUid, nowELAPSED);
+                if (mForceAppStandbyTracker.isInForeground(alarm.creatorUid)) {
+                    mUseAllowWhileIdleShortTime.put(alarm.creatorUid, true);
+                } else {
+                    mUseAllowWhileIdleShortTime.put(alarm.creatorUid, false);
+                }
                 if (RECORD_DEVICE_IDLE_ALARMS) {
                     IdleDispatchEntry ent = new IdleDispatchEntry();
                     ent.uid = alarm.uid;
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 145b307..3bfa31a 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -140,6 +140,7 @@
 import com.android.server.connectivity.KeepaliveTracker;
 import com.android.server.connectivity.LingerMonitor;
 import com.android.server.connectivity.MockableSystemProperties;
+import com.android.server.connectivity.MultipathPolicyTracker;
 import com.android.server.connectivity.NetworkAgentInfo;
 import com.android.server.connectivity.NetworkDiagnostics;
 import com.android.server.connectivity.NetworkMonitor;
@@ -511,6 +512,9 @@
     @VisibleForTesting
     final MultinetworkPolicyTracker mMultinetworkPolicyTracker;
 
+    @VisibleForTesting
+    final MultipathPolicyTracker mMultipathPolicyTracker;
+
     /**
      * Implements support for the legacy "one network per network type" model.
      *
@@ -894,6 +898,8 @@
                 mContext, mHandler, () -> rematchForAvoidBadWifiUpdate());
         mMultinetworkPolicyTracker.start();
 
+        mMultipathPolicyTracker = new MultipathPolicyTracker(mContext, mHandler);
+
         mDnsManager = new DnsManager(mContext, mNetd, mSystemProperties);
         registerPrivateDnsSettingsCallbacks();
     }
@@ -1974,6 +1980,9 @@
         pw.println();
         dumpAvoidBadWifiSettings(pw);
 
+        pw.println();
+        mMultipathPolicyTracker.dump(pw);
+
         if (argsContain(args, SHORT_ARG) == false) {
             pw.println();
             synchronized (mValidationLogs) {
@@ -2891,6 +2900,11 @@
             return ConnectivityManager.MULTIPATH_PREFERENCE_UNMETERED;
         }
 
+        Integer networkPreference = mMultipathPolicyTracker.getMultipathPreference(network);
+        if (networkPreference != null) {
+            return networkPreference;
+        }
+
         return mMultinetworkPolicyTracker.getMeteredMultipathPreference();
     }
 
@@ -2984,6 +2998,7 @@
                     for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) {
                         nai.networkMonitor.systemReady = true;
                     }
+                    mMultipathPolicyTracker.start();
                     break;
                 }
                 case EVENT_REVALIDATE_NETWORK: {
diff --git a/services/core/java/com/android/server/ForceAppStandbyTracker.java b/services/core/java/com/android/server/ForceAppStandbyTracker.java
index 792fdfe..257845e 100644
--- a/services/core/java/com/android/server/ForceAppStandbyTracker.java
+++ b/services/core/java/com/android/server/ForceAppStandbyTracker.java
@@ -214,8 +214,11 @@
                 int uid, @NonNull String packageName) {
             updateJobsForUidPackage(uid, packageName);
 
-            if (!sender.areAlarmsRestricted(uid, packageName)) {
+            if (!sender.areAlarmsRestricted(uid, packageName, /*allowWhileIdle=*/ false)) {
                 unblockAlarmsForUidPackage(uid, packageName);
+            } else if (!sender.areAlarmsRestricted(uid, packageName, /*allowWhileIdle=*/ true)){
+                // we need to deliver the allow-while-idle alarms for this uid, package
+                unblockAllUnrestrictedAlarms();
             }
         }
 
@@ -706,7 +709,7 @@
                     synchronized (mLock) {
                         unblockAlarms = !mForcedAppStandbyEnabled && !mForceAllAppsStandby;
                     }
-                    for (Listener l: cloneListeners()) {
+                    for (Listener l : cloneListeners()) {
                         l.updateAllJobs();
                         if (unblockAlarms) {
                             l.unblockAllUnrestrictedAlarms();
@@ -818,9 +821,10 @@
     /**
      * @return whether alarms should be restricted for a UID package-name.
      */
-    public boolean areAlarmsRestricted(int uid, @NonNull String packageName) {
+    public boolean areAlarmsRestricted(int uid, @NonNull String packageName,
+            boolean allowWhileIdle) {
         return isRestricted(uid, packageName, /*useTempWhitelistToo=*/ false,
-                /* exemptOnBatterySaver =*/ false);
+                /* exemptOnBatterySaver =*/ allowWhileIdle);
     }
 
     /**
@@ -879,7 +883,6 @@
     /**
      * @return whether force all apps standby is enabled or not.
      *
-     * Note clients normally shouldn't need to access it.
      */
     boolean isForceAllAppsStandbyEnabled() {
         synchronized (mLock) {
diff --git a/services/core/java/com/android/server/IpSecService.java b/services/core/java/com/android/server/IpSecService.java
index c2adbfa..fe4ac6d7 100644
--- a/services/core/java/com/android/server/IpSecService.java
+++ b/services/core/java/com/android/server/IpSecService.java
@@ -65,7 +65,6 @@
 import java.net.InetSocketAddress;
 import java.net.UnknownHostException;
 import java.util.ArrayList;
-import java.util.BitSet;
 import java.util.List;
 
 import libcore.io.IoUtils;
@@ -596,6 +595,10 @@
             return mSpi;
         }
 
+        public EncapSocketRecord getSocketRecord() {
+            return mSocket;
+        }
+
         /** always guarded by IpSecService#this */
         @Override
         public void freeUnderlyingResources() {
@@ -806,9 +809,29 @@
         /** always guarded by IpSecService#this */
         @Override
         public void freeUnderlyingResources() {
-            // TODO: Add calls to netd
+            // Calls to netd
             //       Teardown VTI
             //       Delete global policies
+            try {
+                mSrvConfig.getNetdInstance().removeVirtualTunnelInterface(mInterfaceName);
+
+                for (int direction : DIRECTIONS) {
+                    int mark = (direction == IpSecManager.DIRECTION_IN) ? mIkey : mOkey;
+                    mSrvConfig
+                            .getNetdInstance()
+                            .ipSecDeleteSecurityPolicy(
+                                    0, direction, mLocalAddress, mRemoteAddress, mark, 0xffffffff);
+                }
+            } catch (ServiceSpecificException e) {
+                // FIXME: get the error code and throw is at an IOException from Errno Exception
+            } catch (RemoteException e) {
+                Log.e(
+                        TAG,
+                        "Failed to delete VTI with interface name: "
+                                + mInterfaceName
+                                + " and id: "
+                                + mResourceId);
+            }
 
             getResourceTracker().give();
             releaseNetId(mIkey);
@@ -1229,24 +1252,57 @@
         final int okey = reserveNetId();
         String intfName = String.format("%s%d", TUNNEL_INTERFACE_PREFIX, resourceId);
 
-        // TODO: Add calls to netd:
-        //       Create VTI
-        //       Add inbound/outbound global policies
-        //              (use reqid = 0)
+        try {
+            // Calls to netd:
+            //       Create VTI
+            //       Add inbound/outbound global policies
+            //              (use reqid = 0)
+            mSrvConfig
+                    .getNetdInstance()
+                    .addVirtualTunnelInterface(intfName, localAddr, remoteAddr, ikey, okey);
 
-        userRecord.mTunnelInterfaceRecords.put(
-                resourceId,
-                new RefcountedResource<TunnelInterfaceRecord>(
-                        new TunnelInterfaceRecord(
-                                resourceId,
-                                intfName,
-                                underlyingNetwork,
-                                localAddr,
-                                remoteAddr,
-                                ikey,
-                                okey),
-                        binder));
-        return new IpSecTunnelInterfaceResponse(IpSecManager.Status.OK, resourceId, intfName);
+            for (int direction : DIRECTIONS) {
+                int mark = (direction == IpSecManager.DIRECTION_OUT) ? okey : ikey;
+
+                mSrvConfig
+                        .getNetdInstance()
+                        .ipSecAddSecurityPolicy(
+                                0, // Use 0 for reqId
+                                direction,
+                                "",
+                                "",
+                                0,
+                                mark,
+                                0xffffffff);
+            }
+
+            userRecord.mTunnelInterfaceRecords.put(
+                    resourceId,
+                    new RefcountedResource<TunnelInterfaceRecord>(
+                            new TunnelInterfaceRecord(
+                                    resourceId,
+                                    intfName,
+                                    underlyingNetwork,
+                                    localAddr,
+                                    remoteAddr,
+                                    ikey,
+                                    okey),
+                            binder));
+            return new IpSecTunnelInterfaceResponse(IpSecManager.Status.OK, resourceId, intfName);
+        } catch (RemoteException e) {
+            // Release keys if we got an error.
+            releaseNetId(ikey);
+            releaseNetId(okey);
+            throw e.rethrowFromSystemServer();
+        } catch (ServiceSpecificException e) {
+            // FIXME: get the error code and throw is at an IOException from Errno Exception
+        }
+
+        // If we make it to here, then something has gone wrong and we couldn't create a VTI.
+        // Release the keys that we reserved, and return an error status.
+        releaseNetId(ikey);
+        releaseNetId(okey);
+        return new IpSecTunnelInterfaceResponse(IpSecManager.Status.RESOURCE_UNAVAILABLE);
     }
 
     /**
@@ -1381,12 +1437,50 @@
         }
     }
 
+    private void createOrUpdateTransform(
+            IpSecConfig c, int resourceId, SpiRecord spiRecord, EncapSocketRecord socketRecord)
+            throws RemoteException {
+
+        int encapType = c.getEncapType(), encapLocalPort = 0, encapRemotePort = 0;
+        if (encapType != IpSecTransform.ENCAP_NONE) {
+            encapLocalPort = socketRecord.getPort();
+            encapRemotePort = c.getEncapRemotePort();
+        }
+
+        IpSecAlgorithm auth = c.getAuthentication();
+        IpSecAlgorithm crypt = c.getEncryption();
+        IpSecAlgorithm authCrypt = c.getAuthenticatedEncryption();
+
+        mSrvConfig
+                .getNetdInstance()
+                .ipSecAddSecurityAssociation(
+                        resourceId,
+                        c.getMode(),
+                        c.getSourceAddress(),
+                        c.getDestinationAddress(),
+                        (c.getNetwork() != null) ? c.getNetwork().netId : 0,
+                        spiRecord.getSpi(),
+                        c.getMarkValue(),
+                        c.getMarkMask(),
+                        (auth != null) ? auth.getName() : "",
+                        (auth != null) ? auth.getKey() : new byte[] {},
+                        (auth != null) ? auth.getTruncationLengthBits() : 0,
+                        (crypt != null) ? crypt.getName() : "",
+                        (crypt != null) ? crypt.getKey() : new byte[] {},
+                        (crypt != null) ? crypt.getTruncationLengthBits() : 0,
+                        (authCrypt != null) ? authCrypt.getName() : "",
+                        (authCrypt != null) ? authCrypt.getKey() : new byte[] {},
+                        (authCrypt != null) ? authCrypt.getTruncationLengthBits() : 0,
+                        encapType,
+                        encapLocalPort,
+                        encapRemotePort);
+    }
+
     /**
-     * Create a transport mode transform, which represent two security associations (one in each
-     * direction) in the kernel. The transform will be cached by the system server and must be freed
-     * when no longer needed. It is possible to free one, deleting the SA from underneath sockets
-     * that are using it, which will result in all of those sockets becoming unable to send or
-     * receive data.
+     * Create a IPsec transform, which represents a single security association in the kernel. The
+     * transform will be cached by the system server and must be freed when no longer needed. It is
+     * possible to free one, deleting the SA from underneath sockets that are using it, which will
+     * result in all of those sockets becoming unable to send or receive data.
      */
     @Override
     public synchronized IpSecTransformResponse createTransform(IpSecConfig c, IBinder binder)
@@ -1402,58 +1496,28 @@
             return new IpSecTransformResponse(IpSecManager.Status.RESOURCE_UNAVAILABLE);
         }
 
-        int encapType, encapLocalPort = 0, encapRemotePort = 0;
         EncapSocketRecord socketRecord = null;
-        encapType = c.getEncapType();
-        if (encapType != IpSecTransform.ENCAP_NONE) {
+        if (c.getEncapType() != IpSecTransform.ENCAP_NONE) {
             RefcountedResource<EncapSocketRecord> refcountedSocketRecord =
                     userRecord.mEncapSocketRecords.getRefcountedResourceOrThrow(
                             c.getEncapSocketResourceId());
             dependencies.add(refcountedSocketRecord);
-
             socketRecord = refcountedSocketRecord.getResource();
-            encapLocalPort = socketRecord.getPort();
-            encapRemotePort = c.getEncapRemotePort();
         }
 
-        IpSecAlgorithm auth = c.getAuthentication();
-        IpSecAlgorithm crypt = c.getEncryption();
-        IpSecAlgorithm authCrypt = c.getAuthenticatedEncryption();
-
         RefcountedResource<SpiRecord> refcountedSpiRecord =
                 userRecord.mSpiRecords.getRefcountedResourceOrThrow(c.getSpiResourceId());
         dependencies.add(refcountedSpiRecord);
         SpiRecord spiRecord = refcountedSpiRecord.getResource();
 
         try {
-            mSrvConfig
-                    .getNetdInstance()
-                    .ipSecAddSecurityAssociation(
-                            resourceId,
-                            c.getMode(),
-                            c.getSourceAddress(),
-                            c.getDestinationAddress(),
-                            (c.getNetwork() != null) ? c.getNetwork().netId : 0,
-                            spiRecord.getSpi(),
-                            c.getMarkValue(),
-                            c.getMarkMask(),
-                            (auth != null) ? auth.getName() : "",
-                            (auth != null) ? auth.getKey() : new byte[] {},
-                            (auth != null) ? auth.getTruncationLengthBits() : 0,
-                            (crypt != null) ? crypt.getName() : "",
-                            (crypt != null) ? crypt.getKey() : new byte[] {},
-                            (crypt != null) ? crypt.getTruncationLengthBits() : 0,
-                            (authCrypt != null) ? authCrypt.getName() : "",
-                            (authCrypt != null) ? authCrypt.getKey() : new byte[] {},
-                            (authCrypt != null) ? authCrypt.getTruncationLengthBits() : 0,
-                            encapType,
-                            encapLocalPort,
-                            encapRemotePort);
+            createOrUpdateTransform(c, resourceId, spiRecord, socketRecord);
         } catch (ServiceSpecificException e) {
             // FIXME: get the error code and throw is at an IOException from Errno Exception
             return new IpSecTransformResponse(IpSecManager.Status.RESOURCE_UNAVAILABLE);
         }
-        // Both SAs were created successfully, time to construct a record and lock it away
+
+        // SA was created successfully, time to construct a record and lock it away
         userRecord.mTransformRecords.put(
                 resourceId,
                 new RefcountedResource<TransformRecord>(
@@ -1561,14 +1625,48 @@
                 c.getMode() == IpSecTransform.MODE_TUNNEL,
                 "Transform mode was not Tunnel mode; cannot be applied to a tunnel interface");
 
+        EncapSocketRecord socketRecord = null;
+        if (c.getEncapType() != IpSecTransform.ENCAP_NONE) {
+            socketRecord =
+                    userRecord.mEncapSocketRecords.getResourceOrThrow(c.getEncapSocketResourceId());
+        }
+        SpiRecord spiRecord = userRecord.mSpiRecords.getResourceOrThrow(c.getSpiResourceId());
+
         int mark =
                 (direction == IpSecManager.DIRECTION_IN)
                         ? tunnelInterfaceInfo.getIkey()
                         : tunnelInterfaceInfo.getOkey();
 
-        // TODO: Add calls to netd:
-        //       Update SA with tunnel mark (ikey or okey based on direction)
-        //       If outbound, add SPI to policy
+        try {
+            c.setMarkValue(mark);
+            c.setMarkMask(0xffffffff);
+
+            if (direction == IpSecManager.DIRECTION_OUT) {
+                // Set output mark via underlying network (output only)
+                c.setNetwork(tunnelInterfaceInfo.getUnderlyingNetwork());
+
+                // If outbound, also add SPI to the policy.
+                mSrvConfig
+                        .getNetdInstance()
+                        .ipSecUpdateSecurityPolicy(
+                                0, // Use 0 for reqId
+                                direction,
+                                "",
+                                "",
+                                transformInfo.getSpiRecord().getSpi(),
+                                mark,
+                                0xffffffff);
+            }
+
+            // Update SA with tunnel mark (ikey or okey based on direction)
+            createOrUpdateTransform(c, transformResourceId, spiRecord, socketRecord);
+        } catch (ServiceSpecificException e) {
+            if (e.errorCode == EINVAL) {
+                throw new IllegalArgumentException(e.toString());
+            } else {
+                throw e;
+            }
+        }
     }
 
     @Override
diff --git a/services/core/java/com/android/server/LocationManagerService.java b/services/core/java/com/android/server/LocationManagerService.java
index 5a4f7ca..bd93b179 100644
--- a/services/core/java/com/android/server/LocationManagerService.java
+++ b/services/core/java/com/android/server/LocationManagerService.java
@@ -67,6 +67,7 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.os.WorkSource;
+import android.os.WorkSource.WorkChain;
 import android.provider.Settings;
 import android.text.TextUtils;
 import android.util.ArrayMap;
@@ -829,7 +830,7 @@
             }
             mAllowedResolutionLevel = getAllowedResolutionLevel(pid, uid);
             mIdentity = new Identity(uid, pid, packageName);
-            if (workSource != null && workSource.size() <= 0) {
+            if (workSource != null && workSource.isEmpty()) {
                 workSource = null;
             }
             mWorkSource = workSource;
@@ -1814,13 +1815,11 @@
 
                         if (locationRequest.getInterval() <= thresholdInterval) {
                             if (record.mReceiver.mWorkSource != null
-                                    && record.mReceiver.mWorkSource.size() > 0
-                                    && record.mReceiver.mWorkSource.getName(0) != null) {
-                                // Assign blame to another work source.
-                                // Can only assign blame if the WorkSource contains names.
+                                    && isValidWorkSource(record.mReceiver.mWorkSource)) {
                                 worksource.add(record.mReceiver.mWorkSource);
                             } else {
-                                // Assign blame to caller.
+                                // Assign blame to caller if there's no WorkSource associated with
+                                // the request or if it's invalid.
                                 worksource.add(
                                         record.mReceiver.mIdentity.mUid,
                                         record.mReceiver.mIdentity.mPackageName);
@@ -1835,6 +1834,23 @@
         p.setRequest(providerRequest, worksource);
     }
 
+    /**
+     * Whether a given {@code WorkSource} associated with a Location request is valid.
+     */
+    private static boolean isValidWorkSource(WorkSource workSource) {
+        if (workSource.size() > 0) {
+            // If the WorkSource has one or more non-chained UIDs, make sure they're accompanied
+            // by tags.
+            return workSource.getName(0) != null;
+        } else {
+            // For now, make sure callers have supplied an attribution tag for use with
+            // AppOpsManager. This might be relaxed in the future.
+            final ArrayList<WorkChain> workChains = workSource.getWorkChains();
+            return workChains != null && !workChains.isEmpty() &&
+                    workChains.get(0).getAttributionTag() != null;
+        }
+    }
+
     @Override
     public String[] getBackgroundThrottlingWhitelist() {
         synchronized (mLock) {
@@ -2057,7 +2073,7 @@
         checkResolutionLevelIsSufficientForProviderUse(allowedResolutionLevel,
                 request.getProvider());
         WorkSource workSource = request.getWorkSource();
-        if (workSource != null && workSource.size() > 0) {
+        if (workSource != null && !workSource.isEmpty()) {
             checkDeviceStatsAllowed();
         }
         boolean hideFromAppOps = request.getHideFromAppOps();
@@ -2570,7 +2586,7 @@
         // Check INTERACT_ACROSS_USERS permission if userId is not current user id.
         checkInteractAcrossUsersPermission(userId);
 
-        // enable all location providers
+        // Enable or disable all location providers
         synchronized (mLock) {
             for(String provider : getAllProviders()) {
                 setProviderEnabledForUser(provider, enabled, userId);
@@ -2586,10 +2602,10 @@
      */
     @Override
     public boolean isLocationEnabledForUser(int userId) {
-
         // Check INTERACT_ACROSS_USERS permission if userId is not current user id.
         checkInteractAcrossUsersPermission(userId);
 
+        // If at least one location provider is enabled, return true
         synchronized (mLock) {
             for (String provider : getAllProviders()) {
                 if (isProviderEnabledForUser(provider, userId)) {
@@ -2602,7 +2618,7 @@
 
     @Override
     public boolean isProviderEnabled(String provider) {
-        return isProviderEnabledForUser(provider, UserHandle.myUserId());
+        return isProviderEnabledForUser(provider, UserHandle.getCallingUserId());
     }
 
     /**
diff --git a/services/core/java/com/android/server/MultipathPolicyTracker.java b/services/core/java/com/android/server/MultipathPolicyTracker.java
new file mode 100644
index 0000000..9e0a230
--- /dev/null
+++ b/services/core/java/com/android/server/MultipathPolicyTracker.java
@@ -0,0 +1,361 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.connectivity;
+
+import android.app.usage.NetworkStatsManager;
+import android.app.usage.NetworkStatsManager.UsageCallback;
+import android.content.Context;
+import android.net.INetworkStatsService;
+import android.net.INetworkPolicyManager;
+import android.net.ConnectivityManager;
+import android.net.ConnectivityManager.NetworkCallback;
+import android.net.Network;
+import android.net.NetworkCapabilities;
+import android.net.NetworkPolicyManager;
+import android.net.NetworkRequest;
+import android.net.NetworkStats;
+import android.net.NetworkTemplate;
+import android.net.StringNetworkSpecifier;
+import android.os.Handler;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.telephony.TelephonyManager;
+import android.util.DebugUtils;
+import android.util.Slog;
+
+import java.util.Calendar;
+import java.util.concurrent.ConcurrentHashMap;
+
+import com.android.internal.R;
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.LocalServices;
+import com.android.server.net.NetworkPolicyManagerInternal;
+
+import static android.net.ConnectivityManager.MULTIPATH_PREFERENCE_HANDOVER;
+import static android.net.ConnectivityManager.MULTIPATH_PREFERENCE_RELIABILITY;
+import static android.net.ConnectivityManager.TYPE_MOBILE;
+import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
+import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
+import static android.provider.Settings.Global.NETWORK_AVOID_BAD_WIFI;
+import static android.provider.Settings.Global.NETWORK_METERED_MULTIPATH_PREFERENCE;
+import static com.android.server.net.NetworkPolicyManagerInternal.QUOTA_TYPE_MULTIPATH;
+
+/**
+ * Manages multipath data budgets.
+ *
+ * Informs the return value of ConnectivityManager#getMultipathPreference() based on:
+ * - The user's data plan, as returned by getSubscriptionOpportunisticQuota().
+ * - The amount of data usage that occurs on mobile networks while they are not the system default
+ *   network (i.e., when the app explicitly selected such networks).
+ *
+ * Currently, quota is determined on a daily basis, from midnight to midnight local time.
+ *
+ * @hide
+ */
+public class MultipathPolicyTracker {
+    private static String TAG = MultipathPolicyTracker.class.getSimpleName();
+
+    private static final boolean DBG = false;
+
+    private final Context mContext;
+    private final Handler mHandler;
+
+    private ConnectivityManager mCM;
+    private NetworkStatsManager mStatsManager;
+    private NetworkPolicyManager mNPM;
+    private TelephonyManager mTelephonyManager;
+    private INetworkStatsService mStatsService;
+
+    private NetworkCallback mMobileNetworkCallback;
+    private NetworkPolicyManager.Listener mPolicyListener;
+
+    // STOPSHIP: replace this with a configurable mechanism.
+    private static final long DEFAULT_DAILY_MULTIPATH_QUOTA = 2_500_000;
+
+    private volatile int mMeteredMultipathPreference;
+
+    public MultipathPolicyTracker(Context ctx, Handler handler) {
+        mContext = ctx;
+        mHandler = handler;
+        // Because we are initialized by the ConnectivityService constructor, we can't touch any
+        // connectivity APIs. Service initialization is done in start().
+    }
+
+    public void start() {
+        mCM = (ConnectivityManager) mContext.getSystemService(Context.CONNECTIVITY_SERVICE);
+        mNPM = (NetworkPolicyManager) mContext.getSystemService(Context.NETWORK_POLICY_SERVICE);
+        mStatsManager = (NetworkStatsManager) mContext.getSystemService(
+                Context.NETWORK_STATS_SERVICE);
+        mStatsService = INetworkStatsService.Stub.asInterface(
+                ServiceManager.getService(Context.NETWORK_STATS_SERVICE));
+
+        registerTrackMobileCallback();
+        registerNetworkPolicyListener();
+    }
+
+    public void shutdown() {
+        maybeUnregisterTrackMobileCallback();
+        unregisterNetworkPolicyListener();
+        for (MultipathTracker t : mMultipathTrackers.values()) {
+            t.shutdown();
+        }
+        mMultipathTrackers.clear();
+    }
+
+    // Called on an arbitrary binder thread.
+    public Integer getMultipathPreference(Network network) {
+        MultipathTracker t = mMultipathTrackers.get(network);
+        if (t != null) {
+            return t.getMultipathPreference();
+        }
+        return null;
+    }
+
+    // Track information on mobile networks as they come and go.
+    class MultipathTracker {
+        final Network network;
+        final int subId;
+        final String subscriberId;
+
+        private long mQuota;
+        /** Current multipath budget. Nonzero iff we have budget and a UsageCallback is armed. */
+        private long mMultipathBudget;
+        private final NetworkTemplate mNetworkTemplate;
+        private final UsageCallback mUsageCallback;
+
+        public MultipathTracker(Network network, NetworkCapabilities nc) {
+            this.network = network;
+            try {
+                subId = Integer.parseInt(
+                        ((StringNetworkSpecifier) nc.getNetworkSpecifier()).toString());
+            } catch (ClassCastException | NullPointerException | NumberFormatException e) {
+                throw new IllegalStateException(String.format(
+                        "Can't get subId from mobile network %s (%s): %s",
+                        network, nc, e.getMessage()));
+            }
+
+            TelephonyManager tele = (TelephonyManager) mContext.getSystemService(
+                    Context.TELEPHONY_SERVICE);
+            if (tele == null) {
+                throw new IllegalStateException(String.format("Missing TelephonyManager"));
+            }
+            tele = tele.createForSubscriptionId(subId);
+            if (tele == null) {
+                throw new IllegalStateException(String.format(
+                        "Can't get TelephonyManager for subId %d", subId));
+            }
+
+            subscriberId = tele.getSubscriberId();
+            mNetworkTemplate = new NetworkTemplate(
+                    NetworkTemplate.MATCH_MOBILE_ALL, subscriberId, new String[] { subscriberId },
+                    null, NetworkStats.METERED_ALL, NetworkStats.ROAMING_ALL,
+                    NetworkStats.DEFAULT_NETWORK_NO);
+            mUsageCallback = new UsageCallback() {
+                @Override
+                public void onThresholdReached(int networkType, String subscriberId) {
+                    if (DBG) Slog.d(TAG, "onThresholdReached for network " + network);
+                    mMultipathBudget = 0;
+                    updateMultipathBudget();
+                }
+            };
+
+            updateMultipathBudget();
+        }
+
+        private long getDailyNonDefaultDataUsage() {
+            Calendar start = Calendar.getInstance();
+            Calendar end = (Calendar) start.clone();
+            start.set(Calendar.HOUR_OF_DAY, 0);
+            start.set(Calendar.MINUTE, 0);
+            start.set(Calendar.SECOND, 0);
+            start.set(Calendar.MILLISECOND, 0);
+
+            long bytes;
+            try {
+                // TODO: Consider using NetworkStatsManager.getSummaryForDevice instead.
+                bytes = mStatsService.getNetworkTotalBytes(mNetworkTemplate,
+                        start.getTimeInMillis(), end.getTimeInMillis());
+                if (DBG) Slog.w(TAG, "Non-default data usage: " + bytes);
+            } catch (RemoteException e) {
+                Slog.w(TAG, "Can't fetch daily data usage: " + e);
+                bytes = -1;
+            } catch (IllegalStateException e) {
+                // Bandwidth control disabled?
+                bytes = -1;
+            }
+            return bytes;
+        }
+
+        void updateMultipathBudget() {
+            NetworkPolicyManagerInternal npms = LocalServices.getService(
+                    NetworkPolicyManagerInternal.class);
+            long quota = npms.getSubscriptionOpportunisticQuota(this.network, QUOTA_TYPE_MULTIPATH);
+            if (DBG) Slog.d(TAG, "Opportunistic quota from data plan: " + quota + " bytes");
+
+            if (quota == 0) {
+                // STOPSHIP: replace this with a configurable mechanism.
+                quota = DEFAULT_DAILY_MULTIPATH_QUOTA;
+                if (DBG) Slog.d(TAG, "Setting quota: " + quota + " bytes");
+            }
+
+            if (haveMultipathBudget() && quota == mQuota) {
+                // If we already have a usage callback pending , there's no need to re-register it
+                // if the quota hasn't changed. The callback will simply fire as expected when the
+                // budget is spent. Also: if we re-register the callback when we're below the
+                // UsageCallback's minimum value of 2MB, we'll overshoot the budget.
+                if (DBG) Slog.d(TAG, "Quota still " + quota + ", not updating.");
+                return;
+            }
+            mQuota = quota;
+
+            long usage = getDailyNonDefaultDataUsage();
+            long budget = Math.max(0, quota - usage);
+            if (budget > 0) {
+                if (DBG) Slog.d(TAG, "Setting callback for " + budget +
+                        " bytes on network " + network);
+                registerUsageCallback(budget);
+            } else {
+                maybeUnregisterUsageCallback();
+            }
+        }
+
+        public int getMultipathPreference() {
+            if (haveMultipathBudget()) {
+                return MULTIPATH_PREFERENCE_HANDOVER | MULTIPATH_PREFERENCE_RELIABILITY;
+            }
+            return 0;
+        }
+
+        // For debugging only.
+        public long getQuota() {
+            return mQuota;
+        }
+
+        // For debugging only.
+        public long getMultipathBudget() {
+            return mMultipathBudget;
+        }
+
+        private boolean haveMultipathBudget() {
+            return mMultipathBudget > 0;
+        }
+
+        private void registerUsageCallback(long budget) {
+            maybeUnregisterUsageCallback();
+            mStatsManager.registerUsageCallback(mNetworkTemplate, TYPE_MOBILE, budget,
+                    mUsageCallback, mHandler);
+            mMultipathBudget = budget;
+        }
+
+        private void maybeUnregisterUsageCallback() {
+            if (haveMultipathBudget()) {
+                if (DBG) Slog.d(TAG, "Unregistering callback, budget was " + mMultipathBudget);
+                mStatsManager.unregisterUsageCallback(mUsageCallback);
+                mMultipathBudget = 0;
+            }
+        }
+
+        void shutdown() {
+            maybeUnregisterUsageCallback();
+        }
+    }
+
+    // Only ever updated on the handler thread. Accessed from other binder threads to retrieve
+    // the tracker for a specific network.
+    private final ConcurrentHashMap <Network, MultipathTracker> mMultipathTrackers =
+            new ConcurrentHashMap<>();
+
+    // TODO: this races with app code that might respond to onAvailable() by immediately calling
+    // getMultipathPreference. Fix this by adding to ConnectivityService the ability to directly
+    // invoke NetworkCallbacks on tightly-coupled classes such as this one which run on its
+    // handler thread.
+    private void registerTrackMobileCallback() {
+        final NetworkRequest request = new NetworkRequest.Builder()
+                .addCapability(NET_CAPABILITY_INTERNET)
+                .addTransportType(TRANSPORT_CELLULAR)
+                .build();
+        mMobileNetworkCallback = new ConnectivityManager.NetworkCallback() {
+            @Override
+            public void onCapabilitiesChanged(Network network, NetworkCapabilities nc) {
+                MultipathTracker existing = mMultipathTrackers.get(network);
+                if (existing != null) {
+                    existing.updateMultipathBudget();
+                    return;
+                }
+
+                try {
+                    mMultipathTrackers.put(network, new MultipathTracker(network, nc));
+                } catch (IllegalStateException e) {
+                    Slog.e(TAG, "Can't track mobile network " + network + ": " + e.getMessage());
+                }
+                if (DBG) Slog.d(TAG, "Tracking mobile network " + network);
+            }
+
+            @Override
+            public void onLost(Network network) {
+                MultipathTracker existing = mMultipathTrackers.get(network);
+                if (existing != null) {
+                    existing.shutdown();
+                    mMultipathTrackers.remove(network);
+                }
+                if (DBG) Slog.d(TAG, "No longer tracking mobile network " + network);
+            }
+        };
+
+        mCM.registerNetworkCallback(request, mMobileNetworkCallback, mHandler);
+    }
+
+    private void maybeUnregisterTrackMobileCallback() {
+        if (mMobileNetworkCallback != null) {
+            mCM.unregisterNetworkCallback(mMobileNetworkCallback);
+        }
+        mMobileNetworkCallback = null;
+    }
+
+    private void registerNetworkPolicyListener() {
+        mPolicyListener = new NetworkPolicyManager.Listener() {
+            @Override
+            public void onMeteredIfacesChanged(String[] meteredIfaces) {
+                // Dispatched every time opportunistic quota is recalculated.
+                mHandler.post(() -> {
+                    for (MultipathTracker t : mMultipathTrackers.values()) {
+                        t.updateMultipathBudget();
+                    }
+                });
+            }
+        };
+        mNPM.registerListener(mPolicyListener);
+    }
+
+    private void unregisterNetworkPolicyListener() {
+        mNPM.unregisterListener(mPolicyListener);
+    }
+
+    public void dump(IndentingPrintWriter pw) {
+        // Do not use in production. Access to class data is only safe on the handler thrad.
+        pw.println("MultipathPolicyTracker:");
+        pw.increaseIndent();
+        for (MultipathTracker t : mMultipathTrackers.values()) {
+            pw.println(String.format("Network %s: quota %d, budget %d. Preference: %s",
+                    t.network, t.getQuota(), t.getMultipathBudget(),
+                    DebugUtils.flagsToString(ConnectivityManager.class, "MULTIPATH_PREFERENCE_",
+                            t.getMultipathPreference())));
+        }
+        pw.decreaseIndent();
+    }
+}
diff --git a/services/core/java/com/android/server/TextServicesManagerService.java b/services/core/java/com/android/server/TextServicesManagerService.java
index 7cd3406..39fc019 100644
--- a/services/core/java/com/android/server/TextServicesManagerService.java
+++ b/services/core/java/com/android/server/TextServicesManagerService.java
@@ -701,7 +701,8 @@
     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
         if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return;
 
-        if (args.length == 0) {  // Dump all users' data
+        if (args.length == 0 || (args.length == 1 && args[0].equals("-a"))) {
+            // Dump all users' data
             synchronized (mLock) {
                 pw.println("Current Text Services Manager state:");
                 pw.println("  Users:");
diff --git a/services/core/java/com/android/server/am/ActiveServices.java b/services/core/java/com/android/server/am/ActiveServices.java
index 2f7d4c1..266abf8 100644
--- a/services/core/java/com/android/server/am/ActiveServices.java
+++ b/services/core/java/com/android/server/am/ActiveServices.java
@@ -1042,20 +1042,14 @@
                         throw new SecurityException("Instant app " + r.appInfo.packageName
                                 + " does not have permission to create foreground services");
                     default:
-                        try {
-                            if (AppGlobals.getPackageManager().checkPermission(
-                                    android.Manifest.permission.INSTANT_APP_FOREGROUND_SERVICE,
-                                    r.appInfo.packageName, UserHandle.getUserId(r.appInfo.uid))
-                                            != PackageManager.PERMISSION_GRANTED) {
-                                throw new SecurityException("Instant app " + r.appInfo.packageName
-                                        + " does not have permission to create foreground"
-                                        + "services");
-                            }
-                        } catch (RemoteException e) {
-                            throw new SecurityException("Failed to check instant app permission." ,
-                                    e);
-                        }
+                        mAm.enforcePermission(
+                                android.Manifest.permission.INSTANT_APP_FOREGROUND_SERVICE,
+                                r.app.pid, r.appInfo.uid, "startForeground");
                 }
+            } else if (r.appInfo.targetSdkVersion >= Build.VERSION_CODES.P) {
+                mAm.enforcePermission(
+                        android.Manifest.permission.FOREGROUND_SERVICE,
+                        r.app.pid, r.appInfo.uid, "startForeground");
             }
             if (r.fgRequired) {
                 if (DEBUG_SERVICE || DEBUG_BACKGROUND_CHECK) {
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 36ad94f..f469437 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -228,6 +228,7 @@
 import android.app.BroadcastOptions;
 import android.app.ContentProviderHolder;
 import android.app.Dialog;
+import android.app.GrantedUriPermission;
 import android.app.IActivityController;
 import android.app.IActivityManager;
 import android.app.IApplicationThread;
@@ -3463,6 +3464,7 @@
     final void showAppWarningsIfNeededLocked(ActivityRecord r) {
         mAppWarnings.showUnsupportedCompileSdkDialogIfNeeded(r);
         mAppWarnings.showUnsupportedDisplaySizeDialogIfNeeded(r);
+        mAppWarnings.showDeprecatedTargetDialogIfNeeded(r);
     }
 
     private int updateLruProcessInternalLocked(ProcessRecord app, long now, int index,
@@ -4060,10 +4062,15 @@
 
             if (app.info.isPrivilegedApp() &&
                     SystemProperties.getBoolean("pm.dexopt.priv-apps-oob", false)) {
-                runtimeFlags |= Zygote.DISABLE_VERIFIER;
                 runtimeFlags |= Zygote.ONLY_USE_SYSTEM_OAT_FILES;
             }
 
+            if (app.info.isAllowedToUseHiddenApi()) {
+                // This app is allowed to use undocumented and private APIs. Set
+                // up its runtime with the appropriate flag.
+                runtimeFlags |= Zygote.DISABLE_HIDDEN_API_CHECKS;
+            }
+
             String invokeWith = null;
             if ((app.info.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
                 // Debuggable apps may include a wrapper script with their library directory.
@@ -8884,6 +8891,20 @@
     /**
      * This can be called with or without the global lock held.
      */
+    void enforcePermission(String permission, int pid, int uid, String func) {
+        if (checkPermission(permission, pid, uid) == PackageManager.PERMISSION_GRANTED) {
+            return;
+        }
+
+        String msg = "Permission Denial: " + func + " from pid=" + pid + ", uid=" + uid
+                + " requires " + permission;
+        Slog.w(TAG, msg);
+        throw new SecurityException(msg);
+    }
+
+    /**
+     * This can be called with or without the global lock held.
+     */
     void enforceCallerIsRecentsOrHasPermission(String permission, String func) {
         if (!mRecentTasks.isCallerRecents(Binder.getCallingUid())) {
             enforceCallingPermission(permission, func);
@@ -10184,7 +10205,8 @@
                 if (perms == null) {
                     Slog.w(TAG, "No permission grants found for " + packageName);
                 } else {
-                    for (UriPermission perm : perms.values()) {
+                    for (int j = 0; j < perms.size(); j++) {
+                        final UriPermission perm = perms.valueAt(j);
                         if (packageName.equals(perm.targetPkg) && perm.persistedModeFlags != 0) {
                             result.add(perm.buildPersistedPublicApiObject());
                         }
@@ -10195,7 +10217,8 @@
                 for (int i = 0; i < size; i++) {
                     final ArrayMap<GrantUri, UriPermission> perms =
                             mGrantedUriPermissions.valueAt(i);
-                    for (UriPermission perm : perms.values()) {
+                    for (int j = 0; j < perms.size(); j++) {
+                        final UriPermission perm = perms.valueAt(j);
                         if (packageName.equals(perm.sourcePkg) && perm.persistedModeFlags != 0) {
                             result.add(perm.buildPersistedPublicApiObject());
                         }
@@ -10207,25 +10230,27 @@
     }
 
     @Override
-    public ParceledListSlice<android.content.UriPermission> getGrantedUriPermissions(
-            String packageName, int userId) {
+    public ParceledListSlice<GrantedUriPermission> getGrantedUriPermissions(
+            @Nullable String packageName, int userId) {
         enforceCallingPermission(android.Manifest.permission.GET_APP_GRANTED_URI_PERMISSIONS,
                 "getGrantedUriPermissions");
 
-        final ArrayList<android.content.UriPermission> result = Lists.newArrayList();
+        final List<GrantedUriPermission> result = new ArrayList<>();
         synchronized (this) {
             final int size = mGrantedUriPermissions.size();
             for (int i = 0; i < size; i++) {
                 final ArrayMap<GrantUri, UriPermission> perms = mGrantedUriPermissions.valueAt(i);
-                for (UriPermission perm : perms.values()) {
-                    if (packageName.equals(perm.targetPkg) && perm.targetUserId == userId
+                for (int j = 0; j < perms.size(); j++) {
+                    final UriPermission perm = perms.valueAt(j);
+                    if ((packageName == null || packageName.equals(perm.targetPkg))
+                            && perm.targetUserId == userId
                             && perm.persistedModeFlags != 0) {
-                        result.add(perm.buildPersistedPublicApiObject());
+                        result.add(perm.buildGrantedUriPermission());
                     }
                 }
             }
         }
-        return new ParceledListSlice<android.content.UriPermission>(result);
+        return new ParceledListSlice<>(result);
     }
 
     @Override
@@ -13254,6 +13279,9 @@
             case ActivityManager.BUGREPORT_OPTION_TELEPHONY:
                 extraOptions = "bugreporttelephony";
                 break;
+            case ActivityManager.BUGREPORT_OPTION_WIFI:
+                extraOptions = "bugreportwifi";
+                break;
             default:
                 throw new IllegalArgumentException("Provided bugreport type is not correct, value: "
                         + bugreportType);
@@ -13275,9 +13303,8 @@
      * No new code should be calling it.
      */
     @Deprecated
-    @Override
-    public void requestTelephonyBugReport(String shareTitle, String shareDescription) {
-
+    private void requestBugReportWithDescription(String shareTitle, String shareDescription,
+                                                 int bugreportType) {
         if (!TextUtils.isEmpty(shareTitle)) {
             if (shareTitle.length() > MAX_BUGREPORT_TITLE_SIZE) {
                 String errorStr = "shareTitle should be less than " +
@@ -13306,9 +13333,34 @@
 
         Slog.d(TAG, "Bugreport notification title " + shareTitle
                 + " description " + shareDescription);
-        requestBugReport(ActivityManager.BUGREPORT_OPTION_TELEPHONY);
+        requestBugReport(bugreportType);
     }
 
+    /**
+     * @deprecated This method is only used by a few internal components and it will soon be
+     * replaced by a proper bug report API (which will be restricted to a few, pre-defined apps).
+     * No new code should be calling it.
+     */
+    @Deprecated
+    @Override
+    public void requestTelephonyBugReport(String shareTitle, String shareDescription) {
+        requestBugReportWithDescription(shareTitle, shareDescription,
+                ActivityManager.BUGREPORT_OPTION_TELEPHONY);
+    }
+
+    /**
+     * @deprecated This method is only used by a few internal components and it will soon be
+     * replaced by a proper bug report API (which will be restricted to a few, pre-defined apps).
+     * No new code should be calling it.
+     */
+    @Deprecated
+    @Override
+    public void requestWifiBugReport(String shareTitle, String shareDescription) {
+        requestBugReportWithDescription(shareTitle, shareDescription,
+                ActivityManager.BUGREPORT_OPTION_WIFI);
+    }
+
+
     public static long getInputDispatchingTimeoutLocked(ActivityRecord r) {
         return r != null ? getInputDispatchingTimeoutLocked(r.app) : KEY_DISPATCHING_TIMEOUT;
     }
@@ -13732,7 +13784,7 @@
                 int index = task.mActivities.lastIndexOf(r);
                 if (index > 0) {
                     ActivityRecord under = task.mActivities.get(index - 1);
-                    under.returningOptions = safeOptions.getOptions(r);
+                    under.returningOptions = safeOptions != null ? safeOptions.getOptions(r) : null;
                 }
                 final boolean translucentChanged = r.changeWindowTranslucency(false);
                 if (translucentChanged) {
diff --git a/services/core/java/com/android/server/am/AppErrorDialog.java b/services/core/java/com/android/server/am/AppErrorDialog.java
index 5412266..68c63a2 100644
--- a/services/core/java/com/android/server/am/AppErrorDialog.java
+++ b/services/core/java/com/android/server/am/AppErrorDialog.java
@@ -38,9 +38,7 @@
     private final ActivityManagerService mService;
     private final AppErrorResult mResult;
     private final ProcessRecord mProc;
-    private final boolean mRepeating;
     private final boolean mIsRestartable;
-    private CharSequence mName;
 
     static int CANT_SHOW = -1;
     static int BACKGROUND_USER = -2;
@@ -53,6 +51,7 @@
     static final int MUTE = 5;
     static final int TIMEOUT = 6;
     static final int CANCEL = 7;
+    static final int APP_INFO = 8;
 
     // 5-minute timeout, then we automatically dismiss the crash dialog
     static final long DISMISS_TIMEOUT = 1000 * 60 * 5;
@@ -64,23 +63,25 @@
         mService = service;
         mProc = data.proc;
         mResult = data.result;
-        mRepeating = data.repeating;
-        mIsRestartable = data.task != null || data.isRestartableForService;
+        mIsRestartable = (data.task != null || data.isRestartableForService)
+                && Settings.Global.getInt(context.getContentResolver(),
+                Settings.Global.SHOW_RESTART_IN_CRASH_DIALOG, 0) != 0;
         BidiFormatter bidi = BidiFormatter.getInstance();
 
+        CharSequence name;
         if ((mProc.pkgList.size() == 1) &&
-                (mName = context.getPackageManager().getApplicationLabel(mProc.info)) != null) {
+                (name = context.getPackageManager().getApplicationLabel(mProc.info)) != null) {
             setTitle(res.getString(
-                    mRepeating ? com.android.internal.R.string.aerr_application_repeated
+                    data.repeating ? com.android.internal.R.string.aerr_application_repeated
                             : com.android.internal.R.string.aerr_application,
-                    bidi.unicodeWrap(mName.toString()),
+                    bidi.unicodeWrap(name.toString()),
                     bidi.unicodeWrap(mProc.info.processName)));
         } else {
-            mName = mProc.processName;
+            name = mProc.processName;
             setTitle(res.getString(
-                    mRepeating ? com.android.internal.R.string.aerr_process_repeated
+                    data.repeating ? com.android.internal.R.string.aerr_process_repeated
                             : com.android.internal.R.string.aerr_process,
-                    bidi.unicodeWrap(mName.toString())));
+                    bidi.unicodeWrap(name.toString())));
         }
 
         setCancelable(true);
@@ -118,11 +119,14 @@
         report.setOnClickListener(this);
         report.setVisibility(hasReceiver ? View.VISIBLE : View.GONE);
         final TextView close = findViewById(com.android.internal.R.id.aerr_close);
-        close.setVisibility(mRepeating ? View.VISIBLE : View.GONE);
         close.setOnClickListener(this);
+        final TextView appInfo = findViewById(com.android.internal.R.id.aerr_app_info);
+        appInfo.setOnClickListener(this);
 
         boolean showMute = !Build.IS_USER && Settings.Global.getInt(context.getContentResolver(),
-                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0;
+                Settings.Global.DEVELOPMENT_SETTINGS_ENABLED, 0) != 0
+                && Settings.Global.getInt(context.getContentResolver(),
+                Settings.Global.SHOW_MUTE_IN_CRASH_DIALOG, 0) != 0;
         final TextView mute = findViewById(com.android.internal.R.id.aerr_mute);
         mute.setOnClickListener(this);
         mute.setVisibility(showMute ? View.VISIBLE : View.GONE);
@@ -183,6 +187,9 @@
             case com.android.internal.R.id.aerr_close:
                 mHandler.obtainMessage(FORCE_QUIT).sendToTarget();
                 break;
+            case com.android.internal.R.id.aerr_app_info:
+                mHandler.obtainMessage(APP_INFO).sendToTarget();
+                break;
             case com.android.internal.R.id.aerr_mute:
                 mHandler.obtainMessage(MUTE).sendToTarget();
                 break;
diff --git a/services/core/java/com/android/server/am/AppErrors.java b/services/core/java/com/android/server/am/AppErrors.java
index c7d93be..9776c4d 100644
--- a/services/core/java/com/android/server/am/AppErrors.java
+++ b/services/core/java/com/android/server/am/AppErrors.java
@@ -34,6 +34,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
+import android.net.Uri;
 import android.os.Binder;
 import android.os.Message;
 import android.os.Process;
@@ -500,6 +501,11 @@
                     Binder.restoreCallingIdentity(orig);
                 }
             }
+            if (res == AppErrorDialog.APP_INFO) {
+                appErrorIntent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+                appErrorIntent.setData(Uri.parse("package:" + r.info.packageName));
+                appErrorIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+            }
             if (res == AppErrorDialog.FORCE_QUIT_AND_REPORT) {
                 appErrorIntent = createAppErrorIntentLocked(r, timeMillis, crashInfo);
             }
diff --git a/services/core/java/com/android/server/am/AppWarnings.java b/services/core/java/com/android/server/am/AppWarnings.java
index a3c0345..806e95d 100644
--- a/services/core/java/com/android/server/am/AppWarnings.java
+++ b/services/core/java/com/android/server/am/AppWarnings.java
@@ -50,6 +50,7 @@
 
     public static final int FLAG_HIDE_DISPLAY_SIZE = 0x01;
     public static final int FLAG_HIDE_COMPILE_SDK = 0x02;
+    public static final int FLAG_HIDE_DEPRECATED_SDK = 0x04;
 
     private final HashMap<String, Integer> mPackageFlags = new HashMap<>();
 
@@ -61,6 +62,7 @@
 
     private UnsupportedDisplaySizeDialog mUnsupportedDisplaySizeDialog;
     private UnsupportedCompileSdkDialog mUnsupportedCompileSdkDialog;
+    private DeprecatedTargetSdkVersionDialog mDeprecatedTargetSdkVersionDialog;
 
     /**
      * Creates a new warning dialog manager.
@@ -126,6 +128,17 @@
     }
 
     /**
+     * Shows the "deprecated target sdk" warning, if necessary.
+     *
+     * @param r activity record for which the warning may be displayed
+     */
+    public void showDeprecatedTargetDialogIfNeeded(ActivityRecord r) {
+        if (r.appInfo.targetSdkVersion < Build.VERSION.MIN_SUPPORTED_TARGET_SDK_INT) {
+            mUiHandler.showDeprecatedTargetDialog(r);
+        }
+    }
+
+    /**
      * Called when an activity is being started.
      *
      * @param r record for the activity being started
@@ -133,6 +146,7 @@
     public void onStartActivity(ActivityRecord r) {
         showUnsupportedCompileSdkDialogIfNeeded(r);
         showUnsupportedDisplaySizeDialogIfNeeded(r);
+        showDeprecatedTargetDialogIfNeeded(r);
     }
 
     /**
@@ -237,6 +251,27 @@
     }
 
     /**
+     * Shows the "deprecated target sdk version" warning for the given application.
+     * <p>
+     * <strong>Note:</strong> Must be called on the UI thread.
+     *
+     * @param ar record for the activity that triggered the warning
+     */
+    @UiThread
+    private void showDeprecatedTargetSdkDialogUiThread(ActivityRecord ar) {
+        if (mDeprecatedTargetSdkVersionDialog != null) {
+            mDeprecatedTargetSdkVersionDialog.dismiss();
+            mDeprecatedTargetSdkVersionDialog = null;
+        }
+        if (ar != null && !hasPackageFlag(
+                ar.packageName, FLAG_HIDE_DEPRECATED_SDK)) {
+            mDeprecatedTargetSdkVersionDialog = new DeprecatedTargetSdkVersionDialog(
+                    AppWarnings.this, mUiContext, ar.info.applicationInfo);
+            mDeprecatedTargetSdkVersionDialog.show();
+        }
+    }
+
+    /**
      * Dismisses all warnings for the given package.
      * <p>
      * <strong>Note:</strong> Must be called on the UI thread.
@@ -259,6 +294,13 @@
             mUnsupportedCompileSdkDialog.dismiss();
             mUnsupportedCompileSdkDialog = null;
         }
+
+        // Hides the "deprecated target sdk version" dialog if necessary.
+        if (mDeprecatedTargetSdkVersionDialog != null && (name == null || name.equals(
+                mDeprecatedTargetSdkVersionDialog.getPackageName()))) {
+            mDeprecatedTargetSdkVersionDialog.dismiss();
+            mDeprecatedTargetSdkVersionDialog = null;
+        }
     }
 
     /**
@@ -282,7 +324,7 @@
     void setPackageFlag(String name, int flag, boolean enabled) {
         synchronized (mPackageFlags) {
             final int curFlags = getPackageFlags(name);
-            final int newFlags = enabled ? (curFlags & ~flag) : (curFlags | flag);
+            final int newFlags = enabled ? (curFlags | flag) : (curFlags & ~flag);
             if (curFlags != newFlags) {
                 if (newFlags != 0) {
                     mPackageFlags.put(name, newFlags);
@@ -311,6 +353,7 @@
         private static final int MSG_HIDE_UNSUPPORTED_DISPLAY_SIZE_DIALOG = 2;
         private static final int MSG_SHOW_UNSUPPORTED_COMPILE_SDK_DIALOG = 3;
         private static final int MSG_HIDE_DIALOGS_FOR_PACKAGE = 4;
+        private static final int MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG = 5;
 
         public UiHandler(Looper looper) {
             super(looper, null, true);
@@ -334,6 +377,10 @@
                     final String name = (String) msg.obj;
                     hideDialogsForPackageUiThread(name);
                 } break;
+                case MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG: {
+                    final ActivityRecord ar = (ActivityRecord) msg.obj;
+                    showDeprecatedTargetSdkDialogUiThread(ar);
+                } break;
             }
         }
 
@@ -352,6 +399,11 @@
             obtainMessage(MSG_SHOW_UNSUPPORTED_COMPILE_SDK_DIALOG, r).sendToTarget();
         }
 
+        public void showDeprecatedTargetDialog(ActivityRecord r) {
+            removeMessages(MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG);
+            obtainMessage(MSG_SHOW_DEPRECATED_TARGET_SDK_DIALOG, r).sendToTarget();
+        }
+
         public void hideDialogsForPackage(String name) {
             obtainMessage(MSG_HIDE_DIALOGS_FOR_PACKAGE, name).sendToTarget();
         }
diff --git a/services/core/java/com/android/server/am/BatteryStatsService.java b/services/core/java/com/android/server/am/BatteryStatsService.java
index d755fa9..0d96468 100644
--- a/services/core/java/com/android/server/am/BatteryStatsService.java
+++ b/services/core/java/com/android/server/am/BatteryStatsService.java
@@ -585,17 +585,11 @@
         }
     }
 
-    public void noteStartGps(int uid) {
+    @Override
+    public void noteGpsChanged(WorkSource oldWs, WorkSource newWs) {
         enforceCallingPermission();
         synchronized (mStats) {
-            mStats.noteStartGpsLocked(uid);
-        }
-    }
-
-    public void noteStopGps(int uid) {
-        enforceCallingPermission();
-        synchronized (mStats) {
-            mStats.noteStopGpsLocked(uid);
+            mStats.noteGpsChangedLocked(oldWs, newWs);
         }
     }
 
diff --git a/services/core/java/com/android/server/am/DeprecatedTargetSdkVersionDialog.java b/services/core/java/com/android/server/am/DeprecatedTargetSdkVersionDialog.java
new file mode 100644
index 0000000..84dca7f
--- /dev/null
+++ b/services/core/java/com/android/server/am/DeprecatedTargetSdkVersionDialog.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.am;
+
+import android.app.AlertDialog;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Build;
+import android.os.SystemPropertiesProto;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.CheckBox;
+
+import com.android.internal.R;
+import com.android.server.utils.AppInstallerUtil;
+
+public class DeprecatedTargetSdkVersionDialog {
+    private final AlertDialog mDialog;
+    private final String mPackageName;
+
+    public DeprecatedTargetSdkVersionDialog(final AppWarnings manager, Context context,
+            ApplicationInfo appInfo) {
+        mPackageName = appInfo.packageName;
+
+        final PackageManager pm = context.getPackageManager();
+        final CharSequence label = appInfo.loadSafeLabel(pm);
+        final CharSequence message = context.getString(R.string.deprecated_target_sdk_message);
+
+        final AlertDialog.Builder builder = new AlertDialog.Builder(context)
+                .setPositiveButton(R.string.ok, (dialog, which) ->
+                    manager.setPackageFlag(
+                            mPackageName, AppWarnings.FLAG_HIDE_DEPRECATED_SDK, true))
+                .setMessage(message)
+                .setTitle(label);
+
+        // If we might be able to update the app, show a button.
+        final Intent installerIntent = AppInstallerUtil.createIntent(context, appInfo.packageName);
+        if (installerIntent != null) {
+            builder.setNeutralButton(R.string.deprecated_target_sdk_app_store,
+                    (dialog, which) -> {
+                        context.startActivity(installerIntent);
+                    });
+        }
+
+        // Ensure the content view is prepared.
+        mDialog = builder.create();
+        mDialog.create();
+
+        final Window window = mDialog.getWindow();
+        window.setType(WindowManager.LayoutParams.TYPE_PHONE);
+
+        // DO NOT MODIFY. Used by CTS to verify the dialog is displayed.
+        window.getAttributes().setTitle("DeprecatedTargetSdkVersionDialog");
+    }
+
+    public String getPackageName() {
+        return mPackageName;
+    }
+
+    public void show() {
+        mDialog.show();
+    }
+
+    public void dismiss() {
+        mDialog.dismiss();
+    }
+}
diff --git a/services/core/java/com/android/server/am/UriPermission.java b/services/core/java/com/android/server/am/UriPermission.java
index 90577e3..1e071aa 100644
--- a/services/core/java/com/android/server/am/UriPermission.java
+++ b/services/core/java/com/android/server/am/UriPermission.java
@@ -16,6 +16,7 @@
 
 package com.android.server.am;
 
+import android.app.GrantedUriPermission;
 import android.content.Intent;
 import android.os.Binder;
 import android.os.UserHandle;
@@ -387,4 +388,8 @@
     public android.content.UriPermission buildPersistedPublicApiObject() {
         return new android.content.UriPermission(uri.uri, persistedModeFlags, persistedCreateTime);
     }
+
+    public GrantedUriPermission buildGrantedUriPermission() {
+        return new GrantedUriPermission(uri.uri, targetPkg);
+    }
 }
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index f4c99f5..bedf043 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -138,7 +138,6 @@
 import java.io.PrintWriter;
 import java.lang.reflect.Field;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
@@ -771,7 +770,7 @@
         // Register for device connection intent broadcasts.
         IntentFilter intentFilter =
                 new IntentFilter(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED);
-        intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
+        intentFilter.addAction(BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED);
         intentFilter.addAction(Intent.ACTION_DOCK_EVENT);
         intentFilter.addAction(Intent.ACTION_SCREEN_ON);
         intentFilter.addAction(Intent.ACTION_SCREEN_OFF);
@@ -2967,14 +2966,28 @@
     }
 
     public void setBluetoothScoOnInt(boolean on, String eventSource) {
+        if (DEBUG_DEVICES) {
+            Log.d(TAG, "setBluetoothScoOnInt: " + on + " " + eventSource);
+        }
         if (on) {
             // do not accept SCO ON if SCO audio is not connected
-            synchronized(mScoClients) {
-                if ((mBluetoothHeadset != null) &&
-                    (mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice)
-                             != BluetoothHeadset.STATE_AUDIO_CONNECTED)) {
-                    mForcedUseForCommExt = AudioSystem.FORCE_BT_SCO;
-                    return;
+            synchronized (mScoClients) {
+                if (mBluetoothHeadset != null) {
+                    if (mBluetoothHeadsetDevice == null) {
+                        BluetoothDevice activeDevice = mBluetoothHeadset.getActiveDevice();
+                        if (activeDevice != null) {
+                            // setBtScoActiveDevice() might trigger resetBluetoothSco() which
+                            // will call setBluetoothScoOnInt(false, "resetBluetoothSco")
+                            setBtScoActiveDevice(activeDevice);
+                        }
+                    }
+                    if (mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice)
+                            != BluetoothHeadset.STATE_AUDIO_CONNECTED) {
+                        mForcedUseForCommExt = AudioSystem.FORCE_BT_SCO;
+                        Log.w(TAG, "setBluetoothScoOnInt(true) failed because "
+                                + mBluetoothHeadsetDevice + " is not in audio connected mode");
+                        return;
+                    }
                 }
             }
             mForcedUseForComm = AudioSystem.FORCE_BT_SCO;
@@ -3362,24 +3375,23 @@
         }
     }
 
-    void setBtScoDeviceConnectionState(BluetoothDevice btDevice, int state) {
+    private boolean handleBtScoActiveDeviceChange(BluetoothDevice btDevice, boolean isActive) {
         if (btDevice == null) {
-            return;
+            return true;
         }
-
         String address = btDevice.getAddress();
         BluetoothClass btClass = btDevice.getBluetoothClass();
         int outDevice = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO;
         int inDevice = AudioSystem.DEVICE_IN_BLUETOOTH_SCO_HEADSET;
         if (btClass != null) {
             switch (btClass.getDeviceClass()) {
-            case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
-            case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
-                outDevice = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
-                break;
-            case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
-                outDevice = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
-                break;
+                case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
+                case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
+                    outDevice = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET;
+                    break;
+                case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
+                    outDevice = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT;
+                    break;
             }
         }
 
@@ -3387,34 +3399,33 @@
             address = "";
         }
 
-        boolean connected = (state == BluetoothProfile.STATE_CONNECTED);
-
         String btDeviceName =  btDevice.getName();
-        boolean success =
-            handleDeviceConnection(connected, outDevice, address, btDeviceName) &&
-            handleDeviceConnection(connected, inDevice, address, btDeviceName);
+        boolean result = handleDeviceConnection(isActive, outDevice, address, btDeviceName);
+        // handleDeviceConnection() && result to make sure the method get executed
+        result = handleDeviceConnection(isActive, inDevice, address, btDeviceName) && result;
+        return result;
+    }
 
-        if (!success) {
-          return;
+    void setBtScoActiveDevice(BluetoothDevice btDevice) {
+        if (DEBUG_DEVICES) {
+            Log.d(TAG, "setBtScoActiveDevice(" + btDevice + ")");
         }
-
-        /* When one BT headset is disconnected while another BT headset
-         * is connected, don't mess with the headset device.
-         */
-        if ((state == BluetoothProfile.STATE_DISCONNECTED ||
-            state == BluetoothProfile.STATE_DISCONNECTING) &&
-            mBluetoothHeadset != null &&
-            mBluetoothHeadset.getAudioState(btDevice) == BluetoothHeadset.STATE_AUDIO_CONNECTED) {
-            Log.w(TAG, "SCO connected through another device, returning");
-            return;
-        }
-
         synchronized (mScoClients) {
-            if (connected) {
+            final BluetoothDevice previousActiveDevice = mBluetoothHeadsetDevice;
+            if (!Objects.equals(btDevice, previousActiveDevice)) {
+                if (!handleBtScoActiveDeviceChange(previousActiveDevice, false)) {
+                    Log.w(TAG, "setBtScoActiveDevice() failed to remove previous device "
+                            + previousActiveDevice);
+                }
+                if (!handleBtScoActiveDeviceChange(btDevice, true)) {
+                    Log.e(TAG, "setBtScoActiveDevice() failed to add new device " + btDevice);
+                    // set mBluetoothHeadsetDevice to null when failing to add new device
+                    btDevice = null;
+                }
                 mBluetoothHeadsetDevice = btDevice;
-            } else {
-                mBluetoothHeadsetDevice = null;
-                resetBluetoothSco();
+                if (mBluetoothHeadsetDevice == null) {
+                    resetBluetoothSco();
+                }
             }
         }
     }
@@ -3469,12 +3480,7 @@
                     // Discard timeout message
                     mAudioHandler.removeMessages(MSG_BT_HEADSET_CNCT_FAILED);
                     mBluetoothHeadset = (BluetoothHeadset) proxy;
-                    deviceList = mBluetoothHeadset.getConnectedDevices();
-                    if (deviceList.size() > 0) {
-                        mBluetoothHeadsetDevice = deviceList.get(0);
-                    } else {
-                        mBluetoothHeadsetDevice = null;
-                    }
+                    setBtScoActiveDevice(mBluetoothHeadset.getActiveDevice());
                     // Refresh SCO audio state
                     checkScoAudioState();
                     // Continue pending action if any
@@ -3595,10 +3601,7 @@
 
     void disconnectHeadset() {
         synchronized (mScoClients) {
-            if (mBluetoothHeadsetDevice != null) {
-                setBtScoDeviceConnectionState(mBluetoothHeadsetDevice,
-                        BluetoothProfile.STATE_DISCONNECTED);
-            }
+            setBtScoActiveDevice(null);
             mBluetoothHeadset = null;
         }
     }
@@ -5788,11 +5791,9 @@
                     AudioSystem.setForceUse(AudioSystem.FOR_DOCK, config);
                 }
                 mDockState = dockState;
-            } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) {
-                state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE,
-                                               BluetoothProfile.STATE_DISCONNECTED);
+            } else if (action.equals(BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED)) {
                 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
-                setBtScoDeviceConnectionState(btDevice, state);
+                setBtScoActiveDevice(btDevice);
             } else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) {
                 boolean broadcast = false;
                 int scoAudioState = AudioManager.SCO_AUDIO_STATE_ERROR;
@@ -6634,7 +6635,19 @@
     // Inform AudioFlinger of our device's low RAM attribute
     private static void readAndSetLowRamDevice()
     {
-        int status = AudioSystem.setLowRamDevice(ActivityManager.isLowRamDeviceStatic());
+        boolean isLowRamDevice = ActivityManager.isLowRamDeviceStatic();
+        long totalMemory = 1024 * 1024 * 1024; // 1GB is the default if ActivityManager fails.
+
+        try {
+            final ActivityManager.MemoryInfo info = new ActivityManager.MemoryInfo();
+            ActivityManager.getService().getMemoryInfo(info);
+            totalMemory = info.totalMem;
+        } catch (RemoteException e) {
+            Log.w(TAG, "Cannot obtain MemoryInfo from ActivityManager, assume low memory device");
+            isLowRamDevice = true;
+        }
+
+        final int status = AudioSystem.setLowRamDevice(isLowRamDevice, totalMemory);
         if (status != 0) {
             Log.w(TAG, "AudioFlinger informed of device's low RAM attribute; status " + status);
         }
diff --git a/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java b/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
index 10e6cad..4289a25 100644
--- a/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
+++ b/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
@@ -20,6 +20,8 @@
 import android.Manifest;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.hardware.radio.IAnnouncementListener;
+import android.hardware.radio.ICloseHandle;
 import android.hardware.radio.IRadioService;
 import android.hardware.radio.ITuner;
 import android.hardware.radio.ITunerCallback;
@@ -28,14 +30,18 @@
 import android.os.RemoteException;
 import android.util.Slog;
 
+import com.android.internal.util.Preconditions;
 import com.android.server.SystemService;
+import com.android.server.broadcastradio.hal2.AnnouncementAggregator;
 
+import java.util.Arrays;
 import java.util.List;
 import java.util.Objects;
 import java.util.OptionalInt;
 
 public class BroadcastRadioService extends SystemService {
     private static final String TAG = "BcRadioSrv";
+    private static final boolean DEBUG = false;
 
     private final ServiceImpl mServiceImpl = new ServiceImpl();
 
@@ -88,7 +94,7 @@
         @Override
         public ITuner openTuner(int moduleId, RadioManager.BandConfig bandConfig,
                 boolean withAudio, ITunerCallback callback) throws RemoteException {
-            Slog.i(TAG, "openTuner(" + moduleId + ", _, " + withAudio + ", _)");
+            if (DEBUG) Slog.i(TAG, "Opening module " + moduleId);
             enforcePolicyAccess();
             if (callback == null) {
                 throw new IllegalArgumentException("Callback must not be empty");
@@ -101,5 +107,25 @@
                 }
             }
         }
+
+        @Override
+        public ICloseHandle addAnnouncementListener(int[] enabledTypes,
+                IAnnouncementListener listener) {
+            if (DEBUG) {
+                Slog.i(TAG, "Adding announcement listener for " + Arrays.toString(enabledTypes));
+            }
+            Objects.requireNonNull(enabledTypes);
+            Objects.requireNonNull(listener);
+            enforcePolicyAccess();
+
+            synchronized (mLock) {
+                if (!mHal2.hasAnyModules()) {
+                    Slog.i(TAG, "There are no HAL 2.x modules registered");
+                    return new AnnouncementAggregator(listener);
+                }
+
+                return mHal2.addAnnouncementListener(enabledTypes, listener);
+            }
+        }
     }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal1/Tuner.java b/services/core/java/com/android/server/broadcastradio/hal1/Tuner.java
index f9b35f5..e77cb7a 100644
--- a/services/core/java/com/android/server/broadcastradio/hal1/Tuner.java
+++ b/services/core/java/com/android/server/broadcastradio/hal1/Tuner.java
@@ -48,7 +48,7 @@
 
     private boolean mIsClosed = false;
     private boolean mIsMuted = false;
-    private int mRegion;  // TODO(b/62710330): find better solution to handle regions
+    private int mRegion;
     private final boolean mWithAudio;
 
     Tuner(@NonNull ITunerCallback clientCallback, int halRev,
@@ -89,7 +89,6 @@
 
     private native void nativeCancelAnnouncement(long nativeContext);
 
-    private native RadioManager.ProgramInfo nativeGetProgramInformation(long nativeContext);
     private native boolean nativeStartBackgroundScan(long nativeContext);
     private native List<RadioManager.ProgramInfo> nativeGetProgramList(long nativeContext,
             Map<String, String> vendorFilter);
@@ -103,8 +102,6 @@
             Map<String, String> parameters);
     private native Map<String, String> nativeGetParameters(long nativeContext, List<String> keys);
 
-    private native boolean nativeIsAntennaConnected(long nativeContext);
-
     @Override
     public void close() {
         synchronized (mLock) {
@@ -218,14 +215,6 @@
     }
 
     @Override
-    public RadioManager.ProgramInfo getProgramInformation() {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-            return nativeGetProgramInformation(mNativeContext);
-        }
-    }
-
-    @Override
     public Bitmap getImage(int id) {
         if (id == 0) {
             throw new IllegalArgumentException("Image ID is missing");
@@ -324,12 +313,4 @@
         if (results == null) return Collections.emptyMap();
         return results;
     }
-
-    @Override
-    public boolean isAntennaConnected() {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-            return nativeIsAntennaConnected(mNativeContext);
-        }
-    }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal1/TunerCallback.java b/services/core/java/com/android/server/broadcastradio/hal1/TunerCallback.java
index 18f56ed..04c0e57 100644
--- a/services/core/java/com/android/server/broadcastradio/hal1/TunerCallback.java
+++ b/services/core/java/com/android/server/broadcastradio/hal1/TunerCallback.java
@@ -20,6 +20,7 @@
 import android.hardware.radio.ITuner;
 import android.hardware.radio.ITunerCallback;
 import android.hardware.radio.ProgramList;
+import android.hardware.radio.ProgramSelector;
 import android.hardware.radio.RadioManager;
 import android.hardware.radio.RadioMetadata;
 import android.hardware.radio.RadioTuner;
@@ -100,6 +101,11 @@
     }
 
     @Override
+    public void onTuneFailed(int result, ProgramSelector selector) {
+        Slog.e(TAG, "Not applicable for HAL 1.x");
+    }
+
+    @Override
     public void onConfigurationChanged(RadioManager.BandConfig config) {
         dispatch(() -> mClientCallback.onConfigurationChanged(config));
     }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/AnnouncementAggregator.java b/services/core/java/com/android/server/broadcastradio/hal2/AnnouncementAggregator.java
new file mode 100644
index 0000000..0bbaf25
--- /dev/null
+++ b/services/core/java/com/android/server/broadcastradio/hal2/AnnouncementAggregator.java
@@ -0,0 +1,128 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.broadcastradio.hal2;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.hardware.radio.Announcement;
+import android.hardware.radio.IAnnouncementListener;
+import android.hardware.radio.ICloseHandle;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.util.Slog;
+
+import com.android.internal.annotations.GuardedBy;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Objects;
+
+public class AnnouncementAggregator extends ICloseHandle.Stub {
+    private static final String TAG = "BcRadio2Srv.AnnAggr";
+
+    private final Object mLock = new Object();
+    @NonNull private final IAnnouncementListener mListener;
+    private final IBinder.DeathRecipient mDeathRecipient = new DeathRecipient();
+
+    @GuardedBy("mLock")
+    private final Collection<ModuleWatcher> mModuleWatchers = new ArrayList<>();
+
+    @GuardedBy("mLock")
+    private boolean mIsClosed = false;
+
+    public AnnouncementAggregator(@NonNull IAnnouncementListener listener) {
+        mListener = Objects.requireNonNull(listener);
+        try {
+            listener.asBinder().linkToDeath(mDeathRecipient, 0);
+        } catch (RemoteException ex) {
+            ex.rethrowFromSystemServer();
+        }
+    }
+
+    private class ModuleWatcher extends IAnnouncementListener.Stub {
+        private @Nullable ICloseHandle mCloseHandle;
+        public @NonNull List<Announcement> currentList = new ArrayList<>();
+
+        public void onListUpdated(List<Announcement> active) {
+            currentList = Objects.requireNonNull(active);
+            AnnouncementAggregator.this.onListUpdated();
+        }
+
+        public void setCloseHandle(@NonNull ICloseHandle closeHandle) {
+            mCloseHandle = Objects.requireNonNull(closeHandle);
+        }
+
+        public void close() throws RemoteException {
+            if (mCloseHandle != null) mCloseHandle.close();
+        }
+    }
+
+    private class DeathRecipient implements IBinder.DeathRecipient {
+        public void binderDied() {
+            try {
+                close();
+            } catch (RemoteException ex) {}
+        }
+    }
+
+    private void onListUpdated() {
+        synchronized (mLock) {
+            if (mIsClosed) {
+                Slog.e(TAG, "Announcement aggregator is closed, it shouldn't receive callbacks");
+                return;
+            }
+            List<Announcement> combined = new ArrayList<>();
+            for (ModuleWatcher watcher : mModuleWatchers) {
+                combined.addAll(watcher.currentList);
+            }
+            TunerCallback.dispatch(() -> mListener.onListUpdated(combined));
+        }
+    }
+
+    public void watchModule(@NonNull RadioModule module, @NonNull int[] enabledTypes) {
+        synchronized (mLock) {
+            if (mIsClosed) throw new IllegalStateException();
+
+            ModuleWatcher watcher = new ModuleWatcher();
+            ICloseHandle closeHandle;
+            try {
+                closeHandle = module.addAnnouncementListener(enabledTypes, watcher);
+            } catch (RemoteException ex) {
+                Slog.e(TAG, "Failed to add announcement listener", ex);
+                return;
+            }
+            watcher.setCloseHandle(closeHandle);
+            mModuleWatchers.add(watcher);
+        }
+    }
+
+    @Override
+    public void close() throws RemoteException {
+        synchronized (mLock) {
+            if (mIsClosed) return;
+            mIsClosed = true;
+
+            mListener.asBinder().unlinkToDeath(mDeathRecipient, 0);
+
+            for (ModuleWatcher watcher : mModuleWatchers) {
+                watcher.close();
+            }
+            mModuleWatchers.clear();
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java b/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java
index fc9a5d6..406231a 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java
@@ -18,6 +18,8 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.hardware.radio.IAnnouncementListener;
+import android.hardware.radio.ICloseHandle;
 import android.hardware.radio.ITuner;
 import android.hardware.radio.ITunerCallback;
 import android.hardware.radio.RadioManager;
@@ -81,6 +83,10 @@
         return mModules.containsKey(id);
     }
 
+    public boolean hasAnyModules() {
+        return !mModules.isEmpty();
+    }
+
     public ITuner openSession(int moduleId, @Nullable RadioManager.BandConfig legacyConfig,
         boolean withAudio, @NonNull ITunerCallback callback) throws RemoteException {
         Objects.requireNonNull(callback);
@@ -98,4 +104,22 @@
         session.setConfiguration(legacyConfig);
         return session;
     }
+
+    public ICloseHandle addAnnouncementListener(@NonNull int[] enabledTypes,
+            @NonNull IAnnouncementListener listener) {
+        AnnouncementAggregator aggregator = new AnnouncementAggregator(listener);
+        boolean anySupported = false;
+        for (RadioModule module : mModules.values()) {
+            try {
+                aggregator.watchModule(module, enabledTypes);
+                anySupported = true;
+            } catch (UnsupportedOperationException ex) {
+                Slog.v(TAG, "Announcements not supported for this module", ex);
+            }
+        }
+        if (!anySupported) {
+            Slog.i(TAG, "There are no HAL modules that support announcements");
+        }
+        return aggregator;
+    }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/Convert.java b/services/core/java/com/android/server/broadcastradio/hal2/Convert.java
index 60a927c..3bb3d1f 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/Convert.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/Convert.java
@@ -20,6 +20,8 @@
 import android.annotation.Nullable;
 import android.hardware.broadcastradio.V2_0.AmFmBandRange;
 import android.hardware.broadcastradio.V2_0.AmFmRegionConfig;
+import android.hardware.broadcastradio.V2_0.Announcement;
+import android.hardware.broadcastradio.V2_0.IdentifierType;
 import android.hardware.broadcastradio.V2_0.ProgramFilter;
 import android.hardware.broadcastradio.V2_0.ProgramIdentifier;
 import android.hardware.broadcastradio.V2_0.ProgramInfo;
@@ -36,6 +38,7 @@
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -70,7 +73,26 @@
         }
     }
 
-    private static @NonNull Map<String, String>
+    static @NonNull ArrayList<VendorKeyValue>
+    vendorInfoToHal(@Nullable Map<String, String> info) {
+        if (info == null) return new ArrayList<>();
+
+        ArrayList<VendorKeyValue> list = new ArrayList<>();
+        for (Map.Entry<String, String> entry : info.entrySet()) {
+            VendorKeyValue elem = new VendorKeyValue();
+            elem.key = entry.getKey();
+            elem.value = entry.getValue();
+            if (elem.key == null || elem.value == null) {
+                Slog.w(TAG, "VendorKeyValue contains null pointers");
+                continue;
+            }
+            list.add(elem);
+        }
+
+        return list;
+    }
+
+    static @NonNull Map<String, String>
     vendorInfoFromHal(@Nullable List<VendorKeyValue> info) {
         if (info == null) return Collections.emptyMap();
 
@@ -203,46 +225,70 @@
                 false,  // isCaptureSupported
 
                 amfmConfigToBands(amfmConfig),
-                false,  // isBgScanSupported is deprecated
+                true,  // isBgScanSupported is deprecated
                 supportedProgramTypes,
                 supportedIdentifierTypes,
                 vendorInfoFromHal(prop.vendorInfo)
         );
     }
 
+    static void programIdentifierToHal(@NonNull ProgramIdentifier hwId,
+            @NonNull ProgramSelector.Identifier id) {
+        hwId.type = id.getType();
+        hwId.value = id.getValue();
+    }
+
     static @NonNull ProgramIdentifier programIdentifierToHal(
             @NonNull ProgramSelector.Identifier id) {
         ProgramIdentifier hwId = new ProgramIdentifier();
-        hwId.type = id.getType();
-        hwId.value = id.getValue();
+        programIdentifierToHal(hwId, id);
         return hwId;
     }
 
-    static @NonNull ProgramSelector.Identifier programIdentifierFromHal(@NonNull ProgramIdentifier id) {
+    static @Nullable ProgramSelector.Identifier programIdentifierFromHal(
+            @NonNull ProgramIdentifier id) {
+        if (id.type == IdentifierType.INVALID) return null;
         return new ProgramSelector.Identifier(id.type, id.value);
     }
 
+    static @NonNull android.hardware.broadcastradio.V2_0.ProgramSelector programSelectorToHal(
+            @NonNull ProgramSelector sel) {
+        android.hardware.broadcastradio.V2_0.ProgramSelector hwSel =
+            new android.hardware.broadcastradio.V2_0.ProgramSelector();
+
+        programIdentifierToHal(hwSel.primaryId, sel.getPrimaryId());
+        Arrays.stream(sel.getSecondaryIds()).map(Convert::programIdentifierToHal).
+                forEachOrdered(hwSel.secondaryIds::add);
+
+        return hwSel;
+    }
+
     static @NonNull ProgramSelector programSelectorFromHal(
             @NonNull android.hardware.broadcastradio.V2_0.ProgramSelector sel) {
-        ProgramSelector.Identifier[] secondaryIds = sel.secondaryIds.stream().map(
-            id -> programIdentifierFromHal(id)).toArray(ProgramSelector.Identifier[]::new);
+        ProgramSelector.Identifier[] secondaryIds = sel.secondaryIds.stream().
+                map(Convert::programIdentifierFromHal).map(Objects::requireNonNull).
+                toArray(ProgramSelector.Identifier[]::new);
 
         return new ProgramSelector(
-            identifierTypeToProgramType(sel.primaryId.type),
-            programIdentifierFromHal(sel.primaryId),
-            secondaryIds, null);
+                identifierTypeToProgramType(sel.primaryId.type),
+                Objects.requireNonNull(programIdentifierFromHal(sel.primaryId)),
+                secondaryIds, null);
     }
 
     static @NonNull RadioManager.ProgramInfo programInfoFromHal(@NonNull ProgramInfo info) {
+        Collection<ProgramSelector.Identifier> relatedContent = info.relatedContent.stream().
+                map(id -> Objects.requireNonNull(programIdentifierFromHal(id))).
+                collect(Collectors.toList());
+
         return new RadioManager.ProgramInfo(
-            programSelectorFromHal(info.selector),
-            (info.infoFlags & ProgramInfoFlags.TUNED) != 0,
-            (info.infoFlags & ProgramInfoFlags.STEREO) != 0,
-            false,  // TODO(b/69860743): digital
-            info.signalQuality,
-            null,  // TODO(b/69860743): metadata
-            info.infoFlags,
-            vendorInfoFromHal(info.vendorInfo)
+                programSelectorFromHal(info.selector),
+                programIdentifierFromHal(info.logicallyTunedTo),
+                programIdentifierFromHal(info.physicallyTunedTo),
+                relatedContent,
+                info.infoFlags,
+                info.signalQuality,
+                null,  // TODO(b/69860743): metadata
+                vendorInfoFromHal(info.vendorInfo)
         );
     }
 
@@ -259,11 +305,27 @@
     }
 
     static @NonNull ProgramList.Chunk programListChunkFromHal(@NonNull ProgramListChunk chunk) {
-        Set<RadioManager.ProgramInfo> modified = chunk.modified.stream().map(
-            info -> programInfoFromHal(info)).collect(Collectors.toSet());
-        Set<ProgramSelector.Identifier> removed = chunk.removed.stream().map(
-            id -> programIdentifierFromHal(id)).collect(Collectors.toSet());
+        Set<RadioManager.ProgramInfo> modified = chunk.modified.stream().
+                map(info -> programInfoFromHal(info)).collect(Collectors.toSet());
+        Set<ProgramSelector.Identifier> removed = chunk.removed.stream().
+                map(id -> Objects.requireNonNull(programIdentifierFromHal(id))).
+                collect(Collectors.toSet());
 
         return new ProgramList.Chunk(chunk.purge, chunk.complete, modified, removed);
     }
+
+    public static @NonNull android.hardware.radio.Announcement announcementFromHal(
+            @NonNull Announcement hwAnnouncement) {
+        return new android.hardware.radio.Announcement(
+            programSelectorFromHal(hwAnnouncement.selector),
+            hwAnnouncement.type,
+            vendorInfoFromHal(hwAnnouncement.vendorInfo)
+        );
+    }
+
+    static <T> @Nullable ArrayList<T> listToArrayList(@Nullable List<T> list) {
+        if (list == null) return null;
+        if (list instanceof ArrayList) return (ArrayList) list;
+        return new ArrayList<>(list);
+    }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java b/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java
index c8e15c1..50f032d 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java
@@ -18,10 +18,15 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.hardware.radio.ITuner;
 import android.hardware.radio.RadioManager;
 import android.hardware.broadcastradio.V2_0.AmFmRegionConfig;
+import android.hardware.broadcastradio.V2_0.Announcement;
+import android.hardware.broadcastradio.V2_0.IAnnouncementListener;
 import android.hardware.broadcastradio.V2_0.IBroadcastRadio;
+import android.hardware.broadcastradio.V2_0.ICloseHandle;
 import android.hardware.broadcastradio.V2_0.ITunerSession;
 import android.hardware.broadcastradio.V2_0.Result;
 import android.os.ParcelableException;
@@ -29,7 +34,11 @@
 import android.util.MutableInt;
 import android.util.Slog;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Objects;
+import java.util.stream.Collectors;
 
 class RadioModule {
     private static final String TAG = "BcRadio2Srv.module";
@@ -69,14 +78,69 @@
         Mutable<ITunerSession> hwSession = new Mutable<>();
         MutableInt halResult = new MutableInt(Result.UNKNOWN_ERROR);
 
-        mService.openSession(cb, (int result, ITunerSession session) -> {
-            hwSession.value = session;
-            halResult.value = result;
-        });
+        synchronized (mService) {
+            mService.openSession(cb, (result, session) -> {
+                hwSession.value = session;
+                halResult.value = result;
+            });
+        }
 
         Convert.throwOnError("openSession", halResult.value);
         Objects.requireNonNull(hwSession.value);
 
-        return new TunerSession(hwSession.value, cb);
+        return new TunerSession(this, hwSession.value, cb);
+    }
+
+    public android.hardware.radio.ICloseHandle addAnnouncementListener(@NonNull int[] enabledTypes,
+            @NonNull android.hardware.radio.IAnnouncementListener listener) throws RemoteException {
+        ArrayList<Byte> enabledList = new ArrayList<>();
+        for (int type : enabledTypes) {
+            enabledList.add((byte)type);
+        }
+
+        MutableInt halResult = new MutableInt(Result.UNKNOWN_ERROR);
+        Mutable<ICloseHandle> hwCloseHandle = new Mutable<>();
+        IAnnouncementListener hwListener = new IAnnouncementListener.Stub() {
+            public void onListUpdated(ArrayList<Announcement> hwAnnouncements)
+                    throws RemoteException {
+                listener.onListUpdated(hwAnnouncements.stream().
+                    map(a -> Convert.announcementFromHal(a)).collect(Collectors.toList()));
+            }
+        };
+
+        synchronized (mService) {
+            mService.registerAnnouncementListener(enabledList, hwListener, (result, closeHnd) -> {
+                halResult.value = result;
+                hwCloseHandle.value = closeHnd;
+            });
+        }
+        Convert.throwOnError("addAnnouncementListener", halResult.value);
+
+        return new android.hardware.radio.ICloseHandle.Stub() {
+            public void close() {
+                try {
+                    hwCloseHandle.value.close();
+                } catch (RemoteException ex) {
+                    Slog.e(TAG, "Failed closing announcement listener", ex);
+                }
+            }
+        };
+    }
+
+    Bitmap getImage(int id) {
+        if (id == 0) throw new IllegalArgumentException("Image ID is missing");
+
+        byte[] rawImage;
+        synchronized (mService) {
+            List<Byte> rawList = Utils.maybeRethrow(() -> mService.getImage(id));
+            rawImage = new byte[rawList.size()];
+            for (int i = 0; i < rawList.size(); i++) {
+                rawImage[i] = rawList.get(i);
+            }
+        }
+
+        if (rawImage == null || rawImage.length == 0) return null;
+
+        return BitmapFactory.decodeByteArray(rawImage, 0, rawImage.length);
     }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java b/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java
index ed2a1b3..3c4b49c 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java
@@ -50,10 +50,14 @@
     }
 
     @Override
-    public void onTuneFailed(int result, ProgramSelector selector) {}
+    public void onTuneFailed(int result, ProgramSelector selector) {
+        dispatch(() -> mClientCb.onTuneFailed(result, Convert.programSelectorFromHal(selector)));
+    }
 
     @Override
-    public void onCurrentProgramInfoChanged(ProgramInfo info) {}
+    public void onCurrentProgramInfoChanged(ProgramInfo info) {
+        dispatch(() -> mClientCb.onCurrentProgramInfoChanged(Convert.programInfoFromHal(info)));
+    }
 
     @Override
     public void onProgramListUpdated(ProgramListChunk chunk) {
@@ -61,8 +65,12 @@
     }
 
     @Override
-    public void onAntennaStateChange(boolean connected) {}
+    public void onAntennaStateChange(boolean connected) {
+        dispatch(() -> mClientCb.onAntennaState(connected));
+    }
 
     @Override
-    public void onParametersUpdated(ArrayList<VendorKeyValue> parameters) {}
+    public void onParametersUpdated(ArrayList<VendorKeyValue> parameters) {
+        dispatch(() -> mClientCb.onParametersUpdated(Convert.vendorInfoFromHal(parameters)));
+    }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/TunerSession.java b/services/core/java/com/android/server/broadcastradio/hal2/TunerSession.java
index 1ae7d20..8efaa2a 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/TunerSession.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/TunerSession.java
@@ -41,6 +41,7 @@
 
     private final Object mLock = new Object();
 
+    private final RadioModule mModule;
     private final ITunerSession mHwSession;
     private final TunerCallback mCallback;
     private boolean mIsClosed = false;
@@ -50,7 +51,9 @@
     // necessary only for older APIs compatibility
     private RadioManager.BandConfig mDummyConfig = null;
 
-    TunerSession(@NonNull ITunerSession hwSession, @NonNull TunerCallback callback) {
+    TunerSession(@NonNull RadioModule module, @NonNull ITunerSession hwSession,
+            @NonNull TunerCallback callback) {
+        mModule = Objects.requireNonNull(module);
         mHwSession = Objects.requireNonNull(hwSession);
         mCallback = Objects.requireNonNull(callback);
         notifyAudioServiceLocked(true);
@@ -128,23 +131,29 @@
     }
 
     @Override
-    public void step(boolean directionDown, boolean skipSubChannel) {
+    public void step(boolean directionDown, boolean skipSubChannel) throws RemoteException {
         synchronized (mLock) {
             checkNotClosedLocked();
+            int halResult = mHwSession.step(!directionDown);
+            Convert.throwOnError("step", halResult);
         }
     }
 
     @Override
-    public void scan(boolean directionDown, boolean skipSubChannel) {
+    public void scan(boolean directionDown, boolean skipSubChannel) throws RemoteException {
         synchronized (mLock) {
             checkNotClosedLocked();
+            int halResult = mHwSession.scan(!directionDown, skipSubChannel);
+            Convert.throwOnError("step", halResult);
         }
     }
 
     @Override
-    public void tune(ProgramSelector selector) {
+    public void tune(ProgramSelector selector) throws RemoteException {
         synchronized (mLock) {
             checkNotClosedLocked();
+            int halResult = mHwSession.tune(Convert.programSelectorToHal(selector));
+            Convert.throwOnError("tune", halResult);
         }
     }
 
@@ -152,36 +161,25 @@
     public void cancel() {
         synchronized (mLock) {
             checkNotClosedLocked();
+            Utils.maybeRethrow(mHwSession::cancel);
         }
     }
 
     @Override
     public void cancelAnnouncement() {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-        }
-    }
-
-    @Override
-    public RadioManager.ProgramInfo getProgramInformation() {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-            return null;
-        }
+        Slog.i(TAG, "Announcements control doesn't involve cancelling at the HAL level in 2.x");
     }
 
     @Override
     public Bitmap getImage(int id) {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-            return null;
-        }
+        return mModule.getImage(id);
     }
 
     @Override
     public boolean startBackgroundScan() {
         Slog.i(TAG, "Explicit background scan trigger is not supported with HAL 2.x");
-        return false;
+        TunerCallback.dispatch(() -> mCallback.mClientCb.onBackgroundScanComplete());
+        return true;
     }
 
     @Override
@@ -240,7 +238,6 @@
         Slog.v(TAG, "setConfigFlag " + ConfigFlag.toString(flag) + " = " + value);
         synchronized (mLock) {
             checkNotClosedLocked();
-
             int halResult = mHwSession.setConfigFlag(flag, value);
             Convert.throwOnError("setConfigFlag", halResult);
         }
@@ -250,7 +247,8 @@
     public Map setParameters(Map parameters) {
         synchronized (mLock) {
             checkNotClosedLocked();
-            return null;
+            return Convert.vendorInfoFromHal(Utils.maybeRethrow(
+                    () -> mHwSession.setParameters(Convert.vendorInfoToHal(parameters))));
         }
     }
 
@@ -258,15 +256,8 @@
     public Map getParameters(List<String> keys) {
         synchronized (mLock) {
             checkNotClosedLocked();
-            return null;
-        }
-    }
-
-    @Override
-    public boolean isAntennaConnected() {
-        synchronized (mLock) {
-            checkNotClosedLocked();
-            return true;
+            return Convert.vendorInfoFromHal(Utils.maybeRethrow(
+                    () -> mHwSession.getParameters(Convert.listToArrayList(keys))));
         }
     }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/Utils.java b/services/core/java/com/android/server/broadcastradio/hal2/Utils.java
index 3520f37..384c9ba 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/Utils.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/Utils.java
@@ -16,6 +16,9 @@
 
 package com.android.server.broadcastradio.hal2;
 
+import android.annotation.NonNull;
+import android.os.RemoteException;
+
 enum FrequencyBand {
     UNKNOWN,
     FM,
@@ -37,4 +40,29 @@
         if (freq < 110000) return FrequencyBand.FM;
         return FrequencyBand.UNKNOWN;
     }
+
+    interface FuncThrowingRemoteException<T> {
+        T exec() throws RemoteException;
+    }
+
+    static <T> T maybeRethrow(@NonNull FuncThrowingRemoteException<T> r) {
+        try {
+            return r.exec();
+        } catch (RemoteException ex) {
+            ex.rethrowFromSystemServer();
+            return null;  // unreachable
+        }
+    }
+
+    interface VoidFuncThrowingRemoteException {
+        void exec() throws RemoteException;
+    }
+
+    static void maybeRethrow(@NonNull VoidFuncThrowingRemoteException r) {
+        try {
+            r.exec();
+        } catch (RemoteException ex) {
+            ex.rethrowFromSystemServer();
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/connectivity/KeepalivePacketData.java b/services/core/java/com/android/server/connectivity/KeepalivePacketData.java
deleted file mode 100644
index f6b73b7..0000000
--- a/services/core/java/com/android/server/connectivity/KeepalivePacketData.java
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server.connectivity;
-
-import static android.net.util.NetworkConstants.IPV4_HEADER_MIN_LEN;
-import static android.net.util.NetworkConstants.UDP_HEADER_LEN;
-
-import android.system.OsConstants;
-import android.net.ConnectivityManager;
-import android.net.NetworkUtils;
-import android.net.util.IpUtils;
-
-import java.net.Inet4Address;
-import java.net.Inet6Address;
-import java.net.InetAddress;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-
-import static android.net.ConnectivityManager.PacketKeepalive.*;
-
-/**
- * Represents the actual packets that are sent by the
- * {@link android.net.ConnectivityManager.PacketKeepalive} API.
- *
- * @hide
- */
-public class KeepalivePacketData {
-    /** Protocol of the packet to send; one of the OsConstants.ETH_P_* values. */
-    public final int protocol;
-
-    /** Source IP address */
-    public final InetAddress srcAddress;
-
-    /** Destination IP address */
-    public final InetAddress dstAddress;
-
-    /** Source port */
-    public final int srcPort;
-
-    /** Destination port */
-    public final int dstPort;
-
-    /** Destination MAC address. Can change if routing changes. */
-    public byte[] dstMac;
-
-    /** Packet data. A raw byte string of packet data, not including the link-layer header. */
-    public final byte[] data;
-
-    protected KeepalivePacketData(InetAddress srcAddress, int srcPort,
-            InetAddress dstAddress, int dstPort, byte[] data) throws InvalidPacketException {
-        this.srcAddress = srcAddress;
-        this.dstAddress = dstAddress;
-        this.srcPort = srcPort;
-        this.dstPort = dstPort;
-        this.data = data;
-
-        // Check we have two IP addresses of the same family.
-        if (srcAddress == null || dstAddress == null ||
-                !srcAddress.getClass().getName().equals(dstAddress.getClass().getName())) {
-            throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
-        }
-
-        // Set the protocol.
-        if (this.dstAddress instanceof Inet4Address) {
-            this.protocol = OsConstants.ETH_P_IP;
-        } else if (this.dstAddress instanceof Inet6Address) {
-            this.protocol = OsConstants.ETH_P_IPV6;
-        } else {
-            throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
-        }
-
-        // Check the ports.
-        if (!IpUtils.isValidUdpOrTcpPort(srcPort) || !IpUtils.isValidUdpOrTcpPort(dstPort)) {
-            throw new InvalidPacketException(ERROR_INVALID_PORT);
-        }
-    }
-
-    public static class InvalidPacketException extends Exception {
-        final public int error;
-        public InvalidPacketException(int error) {
-            this.error = error;
-        }
-    }
-
-    /**
-     * Creates an IPsec NAT-T keepalive packet with the specified parameters.
-     */
-    public static KeepalivePacketData nattKeepalivePacket(
-            InetAddress srcAddress, int srcPort,
-            InetAddress dstAddress, int dstPort) throws InvalidPacketException {
-
-        if (!(srcAddress instanceof Inet4Address) || !(dstAddress instanceof Inet4Address)) {
-            throw new InvalidPacketException(ERROR_INVALID_IP_ADDRESS);
-        }
-
-        if (dstPort != NATT_PORT) {
-            throw new InvalidPacketException(ERROR_INVALID_PORT);
-        }
-
-        int length = IPV4_HEADER_MIN_LEN + UDP_HEADER_LEN + 1;
-        ByteBuffer buf = ByteBuffer.allocate(length);
-        buf.order(ByteOrder.BIG_ENDIAN);
-        buf.putShort((short) 0x4500);             // IP version and TOS
-        buf.putShort((short) length);
-        buf.putInt(0);                            // ID, flags, offset
-        buf.put((byte) 64);                       // TTL
-        buf.put((byte) OsConstants.IPPROTO_UDP);
-        int ipChecksumOffset = buf.position();
-        buf.putShort((short) 0);                  // IP checksum
-        buf.put(srcAddress.getAddress());
-        buf.put(dstAddress.getAddress());
-        buf.putShort((short) srcPort);
-        buf.putShort((short) dstPort);
-        buf.putShort((short) (length - 20));      // UDP length
-        int udpChecksumOffset = buf.position();
-        buf.putShort((short) 0);                  // UDP checksum
-        buf.put((byte) 0xff);                     // NAT-T keepalive
-        buf.putShort(ipChecksumOffset, IpUtils.ipChecksum(buf, 0));
-        buf.putShort(udpChecksumOffset, IpUtils.udpChecksum(buf, 0, IPV4_HEADER_MIN_LEN));
-
-        return new KeepalivePacketData(srcAddress, srcPort, dstAddress, dstPort, buf.array());
-    }
-}
diff --git a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
index 9e1f6b8..d24f9c9 100644
--- a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
+++ b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
@@ -18,10 +18,10 @@
 
 import com.android.internal.util.HexDump;
 import com.android.internal.util.IndentingPrintWriter;
-import com.android.server.connectivity.KeepalivePacketData;
 import com.android.server.connectivity.NetworkAgentInfo;
 import android.net.ConnectivityManager;
 import android.net.ConnectivityManager.PacketKeepalive;
+import android.net.KeepalivePacketData;
 import android.net.LinkAddress;
 import android.net.NetworkAgent;
 import android.net.NetworkUtils;
@@ -129,7 +129,7 @@
                     .append("->")
                     .append(IpUtils.addressAndPortToString(mPacket.dstAddress, mPacket.dstPort))
                     .append(" interval=" + mInterval)
-                    .append(" data=" + HexDump.toHexString(mPacket.data))
+                    .append(" packetData=" + HexDump.toHexString(mPacket.getPacket()))
                     .append(" uid=").append(mUid).append(" pid=").append(mPid)
                     .append(" ]")
                     .toString();
@@ -172,7 +172,7 @@
         }
 
         private int checkInterval() {
-            return mInterval >= 20 ? SUCCESS : ERROR_INVALID_INTERVAL;
+            return mInterval >= 10 ? SUCCESS : ERROR_INVALID_INTERVAL;
         }
 
         private int isValid() {
diff --git a/services/core/java/com/android/server/connectivity/Tethering.java b/services/core/java/com/android/server/connectivity/Tethering.java
index ff05723..be6c4a1 100644
--- a/services/core/java/com/android/server/connectivity/Tethering.java
+++ b/services/core/java/com/android/server/connectivity/Tethering.java
@@ -506,6 +506,7 @@
         Intent intent = new Intent(Settings.ACTION_TETHER_PROVISIONING);
         intent.putExtra(ConnectivityManager.EXTRA_ADD_TETHER_TYPE, type);
         intent.putExtra(ConnectivityManager.EXTRA_PROVISION_CALLBACK, receiver);
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         final long ident = Binder.clearCallingIdentity();
         try {
             mContext.startActivityAsUser(intent, UserHandle.CURRENT);
diff --git a/services/core/java/com/android/server/display/AutomaticBrightnessController.java b/services/core/java/com/android/server/display/AutomaticBrightnessController.java
index 6c5bfc7..e445d27 100644
--- a/services/core/java/com/android/server/display/AutomaticBrightnessController.java
+++ b/services/core/java/com/android/server/display/AutomaticBrightnessController.java
@@ -25,6 +25,7 @@
 import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
 import android.hardware.display.BrightnessConfiguration;
+import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -57,8 +58,16 @@
     // the user is satisfied with the result before storing the sample.
     private static final int BRIGHTNESS_ADJUSTMENT_SAMPLE_DEBOUNCE_MILLIS = 10000;
 
+    // Timeout after which we remove the effects any user interactions might've had on the
+    // brightness mapping. This timeout doesn't start until we transition to a non-interactive
+    // display policy so that we don't reset while users are using their devices, but also so that
+    // we don't erroneously keep the short-term model if the device is dozing but the display is
+    // fully on.
+    private static final int SHORT_TERM_MODEL_TIMEOUT_MILLIS = 30000;
+
     private static final int MSG_UPDATE_AMBIENT_LUX = 1;
     private static final int MSG_BRIGHTNESS_ADJUSTMENT_SAMPLE = 2;
+    private static final int MSG_RESET_SHORT_TERM_MODEL = 3;
 
     // Length of the ambient light horizon used to calculate the long term estimate of ambient
     // light.
@@ -173,8 +182,9 @@
     // The last screen auto-brightness gamma.  (For printing in dump() only.)
     private float mLastScreenAutoBrightnessGamma = 1.0f;
 
-    // Are we going to adjust brightness while dozing.
-    private boolean mDozing;
+    // The current display policy. This is useful, for example,  for knowing when we're dozing,
+    // where the light sensor may not be available.
+    private int mDisplayPolicy = DisplayPowerRequest.POLICY_OFF;
 
     // True if we are collecting a brightness adjustment sample, along with some data
     // for the initial state of the sample.
@@ -221,31 +231,72 @@
     }
 
     public int getAutomaticScreenBrightness() {
-        if (mDozing) {
+        if (mDisplayPolicy == DisplayPowerRequest.POLICY_DOZE) {
             return (int) (mScreenAutoBrightness * mDozeScaleFactor);
         }
         return mScreenAutoBrightness;
     }
 
     public void configure(boolean enable, @Nullable BrightnessConfiguration configuration,
-            float adjustment, boolean dozing, boolean userInitiatedChange) {
+            float brightness, float adjustment, int displayPolicy, boolean userInitiatedChange) {
         // While dozing, the application processor may be suspended which will prevent us from
         // receiving new information from the light sensor. On some devices, we may be able to
         // switch to a wake-up light sensor instead but for now we will simply disable the sensor
         // and hold onto the last computed screen auto brightness.  We save the dozing flag for
         // debugging purposes.
-        mDozing = dozing;
+        boolean dozing = (displayPolicy == DisplayPowerRequest.POLICY_DOZE);
         boolean changed = setBrightnessConfiguration(configuration);
-        changed |= setLightSensorEnabled(enable && !dozing);
-        if (enable && !dozing && userInitiatedChange) {
+        changed |= setDisplayPolicy(displayPolicy);
+        if (userInitiatedChange && enable && !dozing) {
+            // Update the current brightness value.
+            changed |= setScreenBrightnessByUser(brightness);
             prepareBrightnessAdjustmentSample();
         }
         changed |= setScreenAutoBrightnessAdjustment(adjustment);
+        changed |= setLightSensorEnabled(enable && !dozing);
         if (changed) {
             updateAutoBrightness(false /*sendUpdate*/);
         }
     }
 
+    private boolean setDisplayPolicy(int policy) {
+        if (mDisplayPolicy == policy) {
+            return false;
+        }
+        final int oldPolicy = mDisplayPolicy;
+        mDisplayPolicy = policy;
+        if (DEBUG) {
+            Slog.d(TAG, "Display policy transitioning from " + mDisplayPolicy + " to " + policy);
+        }
+        if (!isInteractivePolicy(policy) && isInteractivePolicy(oldPolicy)) {
+            mHandler.sendEmptyMessageDelayed(MSG_RESET_SHORT_TERM_MODEL,
+                    SHORT_TERM_MODEL_TIMEOUT_MILLIS);
+        } else if (isInteractivePolicy(policy) && !isInteractivePolicy(oldPolicy)) {
+            mHandler.removeMessages(MSG_RESET_SHORT_TERM_MODEL);
+        }
+        return true;
+    }
+
+    private static boolean isInteractivePolicy(int policy) {
+        return policy == DisplayPowerRequest.POLICY_BRIGHT
+                || policy == DisplayPowerRequest.POLICY_DIM
+                || policy == DisplayPowerRequest.POLICY_VR;
+    }
+
+    private boolean setScreenBrightnessByUser(float brightness) {
+        if (!mAmbientLuxValid) {
+            // If we don't have a valid ambient lux then we don't have a valid brightness anyways,
+            // and we can't use this data to add a new control point to the short-term model.
+            return false;
+        }
+        mBrightnessMapper.addUserDataPoint(mAmbientLux, brightness);
+        return true;
+    }
+
+    private void resetShortTermModel() {
+        mBrightnessMapper.clearUserDataPoints();
+    }
+
     public boolean setBrightnessConfiguration(BrightnessConfiguration configuration) {
         return mBrightnessMapper.setBrightnessConfiguration(configuration);
     }
@@ -280,7 +331,7 @@
         pw.println("  mScreenAutoBrightnessAdjustmentMaxGamma="
                 + mScreenAutoBrightnessAdjustmentMaxGamma);
         pw.println("  mLastScreenAutoBrightnessGamma=" + mLastScreenAutoBrightnessGamma);
-        pw.println("  mDozing=" + mDozing);
+        pw.println("  mDisplayPolicy=" + mDisplayPolicy);
 
         pw.println();
         mBrightnessMapper.dump(pw);
@@ -364,6 +415,10 @@
         if (DEBUG) {
             Slog.d(TAG, "setAmbientLux(" + lux + ")");
         }
+        if (lux < 0) {
+            Slog.w(TAG, "Ambient lux was negative, ignoring and setting to 0.");
+            lux = 0;
+        }
         mAmbientLux = lux;
         mBrighteningLuxThreshold = mDynamicHysteresis.getBrighteningThreshold(lux);
         mDarkeningLuxThreshold = mDynamicHysteresis.getDarkeningThreshold(lux);
@@ -647,6 +702,10 @@
                 case MSG_BRIGHTNESS_ADJUSTMENT_SAMPLE:
                     collectBrightnessAdjustmentSample();
                     break;
+
+                case MSG_RESET_SHORT_TERM_MODEL:
+                    resetShortTermModel();
+                    break;
             }
         }
     }
diff --git a/services/core/java/com/android/server/display/BrightnessMappingStrategy.java b/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
index ac0e1b5..436ebff 100644
--- a/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
+++ b/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
@@ -30,6 +30,7 @@
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.io.PrintWriter;
+import java.util.Arrays;
 
 /**
  * A utility to map from an ambient brightness to a display's "backlight" brightness based on the
@@ -42,6 +43,9 @@
     private static final String TAG = "BrightnessMappingStrategy";
     private static final boolean DEBUG = false;
 
+    private static final float LUX_GRAD_SMOOTHING = 0.25f;
+    private static final float MAX_GRAD = 1.0f;
+
     @Nullable
     public static BrightnessMappingStrategy create(Resources resources) {
         float[] luxLevels = getLuxLevels(resources.getIntArray(
@@ -169,11 +173,28 @@
     public abstract float getBrightness(float lux);
 
     /**
-     * Gets the display's brightness in nits for the given backlight value.
+     * Converts the provided backlight value to nits if possible.
      *
      * Returns -1.0f if there's no available mapping for the backlight to nits.
      */
-    public abstract float getNits(int backlight);
+    public abstract float convertToNits(int backlight);
+
+    /**
+     * Adds a user interaction data point to the brightness mapping.
+     *
+     * Currently, we only keep track of one of these at a time to constrain what can happen to the
+     * curve.
+     */
+    public abstract void addUserDataPoint(float lux, float brightness);
+
+    /**
+     * Removes any short term adjustments made to the curve from user interactions.
+     *
+     * Note that this does *not* reset the mapping to its initial state, any brightness
+     * configurations that have been applied will continue to be in effect. This solely removes the
+     * effects of user interactions on the model.
+     */
+    public abstract void clearUserDataPoints();
 
     public abstract void dump(PrintWriter pw);
 
@@ -183,6 +204,112 @@
         return (float) brightness / PowerManager.BRIGHTNESS_ON;
     }
 
+    private static Spline createSpline(float[] x, float[] y) {
+        Spline spline = Spline.createSpline(x, y);
+        if (DEBUG) {
+            Slog.d(TAG, "Spline: " + spline);
+            for (float v = 1f; v < x[x.length - 1] * 1.25f; v *= 1.25f) {
+                Slog.d(TAG, String.format("  %7.1f: %7.1f", v, spline.interpolate(v)));
+            }
+        }
+        return spline;
+    }
+
+    private static Pair<float[], float[]> insertControlPoint(
+            float[] luxLevels, float[] brightnessLevels, float lux, float brightness) {
+        if (DEBUG) {
+            Slog.d(TAG, "Inserting new control point at (" + lux + ", " + brightness + ")");
+        }
+        final int idx = findInsertionPoint(luxLevels, lux);
+        final float[] newLuxLevels;
+        final float[] newBrightnessLevels;
+        if (idx == luxLevels.length) {
+            newLuxLevels = Arrays.copyOf(luxLevels, luxLevels.length + 1);
+            newBrightnessLevels  = Arrays.copyOf(brightnessLevels, brightnessLevels.length + 1);
+            newLuxLevels[idx] = lux;
+            newBrightnessLevels[idx] = brightness;
+        } else if (luxLevels[idx] == lux) {
+            newLuxLevels = Arrays.copyOf(luxLevels, luxLevels.length);
+            newBrightnessLevels = Arrays.copyOf(brightnessLevels, brightnessLevels.length);
+            newBrightnessLevels[idx] = brightness;
+        } else {
+            newLuxLevels = Arrays.copyOf(luxLevels, luxLevels.length + 1);
+            System.arraycopy(newLuxLevels, idx, newLuxLevels, idx+1, luxLevels.length - idx);
+            newLuxLevels[idx] = lux;
+            newBrightnessLevels  = Arrays.copyOf(brightnessLevels, brightnessLevels.length + 1);
+            System.arraycopy(newBrightnessLevels, idx, newBrightnessLevels, idx+1,
+                    brightnessLevels.length - idx);
+            newBrightnessLevels[idx] = brightness;
+        }
+        smoothCurve(newLuxLevels, newBrightnessLevels, idx);
+        return Pair.create(newLuxLevels, newBrightnessLevels);
+    }
+
+    /**
+     * Returns the index of the first value that's less than or equal to {@code val}.
+     *
+     * This assumes that {@code arr} is sorted. If all values in {@code arr} are greater
+     * than val, then it will return the length of arr as the insertion point.
+     */
+    private static int findInsertionPoint(float[] arr, float val) {
+        for (int i = 0; i < arr.length; i++) {
+            if (val <= arr[i]) {
+                return i;
+            }
+        }
+        return arr.length;
+    }
+
+    private static void smoothCurve(float[] lux, float[] brightness, int idx) {
+        if (DEBUG) {
+            Slog.d(TAG, "smoothCurve(lux=" + Arrays.toString(lux)
+                    + ", brightness=" + Arrays.toString(brightness)
+                    + ", idx=" + idx + ")");
+        }
+        float prevLux = lux[idx];
+        float prevBrightness = brightness[idx];
+        // Smooth curve for data points above the newly introduced point
+        for (int i = idx+1; i < lux.length; i++) {
+            float currLux = lux[i];
+            float currBrightness = brightness[i];
+            float maxBrightness = prevBrightness * permissibleRatio(currLux, prevLux);
+            float newBrightness = MathUtils.constrain(
+                    currBrightness, prevBrightness, maxBrightness);
+            if (newBrightness == currBrightness) {
+                break;
+            }
+            prevLux = currLux;
+            prevBrightness = newBrightness;
+            brightness[i] = newBrightness;
+        }
+
+        // Smooth curve for data points below the newly introduced point
+        prevLux = lux[idx];
+        prevBrightness = brightness[idx];
+        for (int i = idx-1; i >= 0; i--) {
+            float currLux = lux[i];
+            float currBrightness = brightness[i];
+            float minBrightness = prevBrightness * permissibleRatio(currLux, prevLux);
+            float newBrightness = MathUtils.constrain(
+                    currBrightness, minBrightness, prevBrightness);
+            if (newBrightness == currBrightness) {
+                break;
+            }
+            prevLux = currLux;
+            prevBrightness = newBrightness;
+            brightness[i] = newBrightness;
+        }
+        if (DEBUG) {
+            Slog.d(TAG, "Smoothed Curve: lux=" + Arrays.toString(lux)
+                    + ", brightness=" + Arrays.toString(brightness));
+        }
+    }
+
+    private static float permissibleRatio(float currLux, float prevLux) {
+        return MathUtils.exp(MAX_GRAD
+                * (MathUtils.log(currLux + LUX_GRAD_SMOOTHING)
+                    - MathUtils.log(prevLux + LUX_GRAD_SMOOTHING)));
+    }
 
     /**
      * A {@link BrightnessMappingStrategy} that maps from ambient room brightness directly to the
@@ -192,7 +319,14 @@
      * configurations that are set are just ignored.
      */
     private static class SimpleMappingStrategy extends BrightnessMappingStrategy {
-        private final Spline mSpline;
+        // Lux control points
+        private final float[] mLux;
+        // Brightness control points normalized to [0, 1]
+        private final float[] mBrightness;
+
+        private Spline mSpline;
+        private float mUserLux;
+        private float mUserBrightness;
 
         public SimpleMappingStrategy(float[] lux, int[] brightness) {
             Preconditions.checkArgument(lux.length != 0 && brightness.length != 0,
@@ -204,20 +338,16 @@
                     0, Integer.MAX_VALUE, "brightness");
 
             final int N = brightness.length;
-            float[] x = new float[N];
-            float[] y = new float[N];
+            mLux = new float[N];
+            mBrightness = new float[N];
             for (int i = 0; i < N; i++) {
-                x[i] = lux[i];
-                y[i] = normalizeAbsoluteBrightness(brightness[i]);
+                mLux[i] = lux[i];
+                mBrightness[i] = normalizeAbsoluteBrightness(brightness[i]);
             }
 
-            mSpline = Spline.createSpline(x, y);
-            if (DEBUG) {
-                Slog.d(TAG, "Auto-brightness spline: " + mSpline);
-                for (float v = 1f; v < lux[lux.length - 1] * 1.25f; v *= 1.25f) {
-                    Slog.d(TAG, String.format("  %7.1f: %7.1f", v, mSpline.interpolate(v)));
-                }
-            }
+            mSpline = createSpline(mLux, mBrightness);
+            mUserLux = -1;
+            mUserBrightness = -1;
         }
 
         @Override
@@ -231,14 +361,36 @@
         }
 
         @Override
-        public float getNits(int backlight) {
+        public float convertToNits(int backlight) {
             return -1.0f;
         }
 
         @Override
+        public void addUserDataPoint(float lux, float brightness) {
+            if (DEBUG){
+                Slog.d(TAG, "addUserDataPoint(lux=" + lux + ", brightness=" + brightness + ")");
+            }
+            Pair<float[], float[]> curve = insertControlPoint(mLux, mBrightness, lux, brightness);
+            mSpline = createSpline(curve.first, curve.second);
+            mUserLux = lux;
+            mUserBrightness = brightness;
+        }
+
+        @Override
+        public void clearUserDataPoints() {
+            if (mUserLux != -1) {
+                mSpline = createSpline(mLux, mBrightness);
+                mUserLux = -1;
+                mUserBrightness = -1;
+            }
+        }
+
+        @Override
         public void dump(PrintWriter pw) {
             pw.println("SimpleMappingStrategy");
             pw.println("  mSpline=" + mSpline);
+            pw.println("  mUserLux=" + mUserLux);
+            pw.println("  mUserBrightness=" + mUserBrightness);
         }
     }
 
@@ -261,13 +413,16 @@
         // [0, 1.0].
         private final Spline mNitsToBacklightSpline;
 
-        // A spline mapping from the device's backlight value, normalized to the range [0, 1.0], to
-        // a brightness in nits.
-        private final Spline mBacklightToNitsSpline;
-
         // The default brightness configuration.
         private final BrightnessConfiguration mDefaultConfig;
 
+        // A spline mapping from the device's backlight value, normalized to the range [0, 1.0], to
+        // a brightness in nits.
+        private Spline mBacklightToNitsSpline;
+
+        private float mUserLux;
+        private float mUserBrightness;
+
         public PhysicalMappingStrategy(BrightnessConfiguration config,
                 float[] nits, int[] backlight) {
             Preconditions.checkArgument(nits.length != 0 && backlight.length != 0,
@@ -279,6 +434,9 @@
             Preconditions.checkArrayElementsInRange(backlight,
                     PowerManager.BRIGHTNESS_OFF, PowerManager.BRIGHTNESS_ON, "backlight");
 
+            mUserLux = -1;
+            mUserBrightness = -1;
+
             // Setup the backlight spline
             final int N = nits.length;
             float[] normalizedBacklight = new float[N];
@@ -286,15 +444,8 @@
                 normalizedBacklight[i] = normalizeAbsoluteBrightness(backlight[i]);
             }
 
-            mNitsToBacklightSpline = Spline.createSpline(nits, normalizedBacklight);
-            mBacklightToNitsSpline = Spline.createSpline(normalizedBacklight, nits);
-            if (DEBUG) {
-                Slog.d(TAG, "Backlight spline: " + mNitsToBacklightSpline);
-                for (float v = 1f; v < nits[nits.length - 1] * 1.25f; v *= 1.25f) {
-                    Slog.d(TAG, String.format(
-                                "  %7.1f: %7.1f", v, mNitsToBacklightSpline.interpolate(v)));
-                }
-            }
+            mNitsToBacklightSpline = createSpline(nits, normalizedBacklight);
+            mBacklightToNitsSpline = createSpline(normalizedBacklight, nits);
 
             mDefaultConfig = config;
             setBrightnessConfiguration(config);
@@ -306,42 +457,59 @@
                 config = mDefaultConfig;
             }
             if (config.equals(mConfig)) {
-                if (DEBUG) {
-                    Slog.d(TAG, "Tried to set an identical brightness config, ignoring");
-                }
                 return false;
             }
 
             Pair<float[], float[]> curve = config.getCurve();
-            mBrightnessSpline = Spline.createSpline(curve.first /*lux*/, curve.second /*nits*/);
-            if (DEBUG) {
-                Slog.d(TAG, "Brightness spline: " + mBrightnessSpline);
-                final float[] lux = curve.first;
-                for (float v = 1f; v < lux[lux.length - 1] * 1.25f; v *= 1.25f) {
-                    Slog.d(TAG, String.format(
-                                "  %7.1f: %7.1f", v, mBrightnessSpline.interpolate(v)));
-                }
-            }
+            mBrightnessSpline = createSpline(curve.first /*lux*/, curve.second /*nits*/);
             mConfig = config;
             return true;
         }
 
         @Override
         public float getBrightness(float lux) {
-            return mNitsToBacklightSpline.interpolate(mBrightnessSpline.interpolate(lux));
+            float nits = mBrightnessSpline.interpolate(lux);
+            float backlight = mNitsToBacklightSpline.interpolate(nits);
+            return backlight;
         }
 
         @Override
-        public float getNits(int backlight) {
+        public float convertToNits(int backlight) {
             return mBacklightToNitsSpline.interpolate(normalizeAbsoluteBrightness(backlight));
         }
 
         @Override
+        public void addUserDataPoint(float lux, float backlight) {
+            if (DEBUG){
+                Slog.d(TAG, "addUserDataPoint(lux=" + lux + ", backlight=" + backlight + ")");
+            }
+            float brightness = mBacklightToNitsSpline.interpolate(backlight);
+            Pair<float[], float[]> defaultCurve = mConfig.getCurve();
+            Pair<float[], float[]> newCurve =
+                    insertControlPoint(defaultCurve.first, defaultCurve.second, lux, brightness);
+            mBrightnessSpline = createSpline(newCurve.first, newCurve.second);
+            mUserLux = lux;
+            mUserBrightness = brightness;
+        }
+
+        @Override
+        public void clearUserDataPoints() {
+            if (mUserLux != -1) {
+                Pair<float[], float[]> defaultCurve = mConfig.getCurve();
+                mBrightnessSpline = createSpline(defaultCurve.first, defaultCurve.second);
+                mUserLux = -1;
+                mUserBrightness = -1;
+            }
+        }
+
+        @Override
         public void dump(PrintWriter pw) {
             pw.println("PhysicalMappingStrategy");
             pw.println("  mConfig=" + mConfig);
             pw.println("  mBrightnessSpline=" + mBrightnessSpline);
             pw.println("  mNitsToBacklightSpline=" + mNitsToBacklightSpline);
+            pw.println("  mUserLux=" + mUserLux);
+            pw.println("  mUserBrightness=" + mUserBrightness);
         }
     }
 }
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index c77ec20..0c2ff05 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -1857,6 +1857,36 @@
             }
         }
 
+        @Override // Binder call
+        public void setTemporaryBrightness(int brightness) {
+            mContext.enforceCallingOrSelfPermission(
+                    Manifest.permission.CONTROL_DISPLAY_BRIGHTNESS,
+                    "Permission required to set the display's brightness");
+            final long token = Binder.clearCallingIdentity();
+            try {
+                synchronized (mSyncRoot) {
+                    mDisplayPowerController.setTemporaryBrightness(brightness);
+                }
+            } finally {
+                Binder.restoreCallingIdentity(token);
+            }
+        }
+
+        @Override // Binder call
+        public void setTemporaryAutoBrightnessAdjustment(float adjustment) {
+            mContext.enforceCallingOrSelfPermission(
+                    Manifest.permission.CONTROL_DISPLAY_BRIGHTNESS,
+                    "Permission required to set the display's auto brightness adjustment");
+            final long token = Binder.clearCallingIdentity();
+            try {
+                synchronized (mSyncRoot) {
+                    mDisplayPowerController.setTemporaryAutoBrightnessAdjustment(adjustment);
+                }
+            } finally {
+                Binder.restoreCallingIdentity(token);
+            }
+        }
+
         private boolean validatePackageName(int uid, String packageName) {
             if (packageName != null) {
                 String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid);
diff --git a/services/core/java/com/android/server/display/DisplayPowerController.java b/services/core/java/com/android/server/display/DisplayPowerController.java
index d2b8e5c..056c3e6 100644
--- a/services/core/java/com/android/server/display/DisplayPowerController.java
+++ b/services/core/java/com/android/server/display/DisplayPowerController.java
@@ -29,6 +29,7 @@
 import android.content.Context;
 import android.content.pm.ParceledListSlice;
 import android.content.res.Resources;
+import android.database.ContentObserver;
 import android.hardware.Sensor;
 import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
@@ -37,6 +38,7 @@
 import android.hardware.display.BrightnessConfiguration;
 import android.hardware.display.DisplayManagerInternal.DisplayPowerCallbacks;
 import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
+import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
@@ -44,6 +46,8 @@
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.Trace;
+import android.os.UserHandle;
+import android.provider.Settings;
 import android.util.MathUtils;
 import android.util.Slog;
 import android.util.Spline;
@@ -99,6 +103,8 @@
     private static final int MSG_SCREEN_ON_UNBLOCKED = 3;
     private static final int MSG_SCREEN_OFF_UNBLOCKED = 4;
     private static final int MSG_CONFIGURE_BRIGHTNESS = 5;
+    private static final int MSG_SET_TEMPORARY_BRIGHTNESS = 6;
+    private static final int MSG_SET_TEMPORARY_AUTO_BRIGHTNESS_ADJUSTMENT = 7;
 
     private static final int PROXIMITY_UNKNOWN = -1;
     private static final int PROXIMITY_NEGATIVE = 0;
@@ -144,6 +150,12 @@
     // The display blanker.
     private final DisplayBlanker mBlanker;
 
+    // Tracker for brightness changes.
+    private final BrightnessTracker mBrightnessTracker;
+
+    // Tracker for brightness settings changes.
+    private final SettingsObserver mSettingsObserver;
+
     // The proximity sensor, or null if not available or needed.
     private Sensor mProximitySensor;
 
@@ -159,6 +171,12 @@
     // The maximum allowed brightness.
     private final int mScreenBrightnessRangeMaximum;
 
+    // The default screen brightness.
+    private final int mScreenBrightnessDefault;
+
+    // The default screen brightness for VR.
+    private final int mScreenBrightnessForVrDefault;
+
     // True if auto-brightness should be used.
     private boolean mUseSoftwareAutoBrightnessConfig;
 
@@ -298,20 +316,42 @@
 
     // The last brightness that was set by the user and not temporary. Set to -1 when a brightness
     // has yet to be recorded.
-    private int mLastBrightness;
+    private int mLastUserSetScreenBrightness;
+
+    // The screen brightenss setting has changed but not taken effect yet. If this is different
+    // from the current screen brightness setting then this is coming from something other than us
+    // and should be considered a user interaction.
+    private int mPendingScreenBrightnessSetting;
+
+    // The last observed screen brightness setting, either set by us or by the settings app on
+    // behalf of the user.
+    private int mCurrentScreenBrightnessSetting;
+
+    // The temporary screen brightness. Typically set when a user is interacting with the
+    // brightness slider but hasn't settled on a choice yet. Set to -1 when there's no temporary
+    // brightness set.
+    private int mTemporaryScreenBrightness;
+
+    // The current screen brightness while in VR mode.
+    private int mScreenBrightnessForVr;
 
     // The last auto brightness adjustment that was set by the user and not temporary. Set to
     // Float.NaN when an auto-brightness adjustment hasn't been recorded yet.
-    private float mLastAutoBrightnessAdjustment;
+    private float mAutoBrightnessAdjustment;
+
+    // The pending auto brightness adjustment that will take effect on the next power state update.
+    private float mPendingAutoBrightnessAdjustment;
+
+    // The temporary auto brightness adjustment. Typically set when a user is interacting with the
+    // adjustment slider but hasn't settled on a choice yet. Set to Float.NaN when there's no
+    // temporary adjustment set.
+    private float mTemporaryAutoBrightnessAdjustment;
 
     // Animators.
     private ObjectAnimator mColorFadeOnAnimator;
     private ObjectAnimator mColorFadeOffAnimator;
     private RampAnimator<DisplayPowerState> mScreenBrightnessRampAnimator;
 
-    // Tracker for brightness changes
-    private final BrightnessTracker mBrightnessTracker;
-
     /**
      * Creates the display power controller.
      */
@@ -320,6 +360,7 @@
             SensorManager sensorManager, DisplayBlanker blanker) {
         mHandler = new DisplayControllerHandler(handler.getLooper());
         mBrightnessTracker = new BrightnessTracker(context, null);
+        mSettingsObserver = new SettingsObserver(mHandler);
         mCallbacks = callbacks;
 
         mBatteryStats = BatteryStatsService.getService();
@@ -343,6 +384,10 @@
 
         mScreenBrightnessRangeMaximum = clampAbsoluteBrightness(resources.getInteger(
                     com.android.internal.R.integer.config_screenBrightnessSettingMaximum));
+        mScreenBrightnessDefault = clampAbsoluteBrightness(resources.getInteger(
+                    com.android.internal.R.integer.config_screenBrightnessSettingDefault));
+        mScreenBrightnessForVrDefault = clampAbsoluteBrightness(resources.getInteger(
+                    com.android.internal.R.integer.config_screenBrightnessForVrSettingDefault));
 
         mUseSoftwareAutoBrightnessConfig = resources.getBoolean(
                 com.android.internal.R.bool.config_automatic_brightness_available);
@@ -429,8 +474,11 @@
             }
         }
 
-        mLastBrightness = -1;
-        mLastAutoBrightnessAdjustment = Float.NaN;
+        mCurrentScreenBrightnessSetting = getScreenBrightnessSetting();
+        mScreenBrightnessForVr = getScreenBrightnessForVrSetting();
+        mAutoBrightnessAdjustment = getAutoBrightnessAdjustmentSetting();
+        mTemporaryScreenBrightness = -1;
+        mTemporaryAutoBrightnessAdjustment = Float.NaN;
     }
 
     /**
@@ -553,10 +601,17 @@
         }
 
         // Initialize all of the brightness tracking state
-        final float brightness = getNits(mPowerState.getScreenBrightness());
+        final float brightness = convertToNits(mPowerState.getScreenBrightness());
         if (brightness >= 0.0f) {
             mBrightnessTracker.start(brightness);
         }
+
+        mContext.getContentResolver().registerContentObserver(
+                Settings.System.getUriFor(Settings.System.SCREEN_BRIGHTNESS),
+                false /*notifyForDescendants*/, mSettingsObserver, UserHandle.USER_ALL);
+        mContext.getContentResolver().registerContentObserver(
+                Settings.System.getUriFor(Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ),
+                false /*notifyForDescendants*/, mSettingsObserver, UserHandle.USER_ALL);
     }
 
     private final Animator.AnimatorListener mAnimatorListener = new Animator.AnimatorListener() {
@@ -586,7 +641,6 @@
         // Update the power state request.
         final boolean mustNotify;
         boolean mustInitialize = false;
-        boolean autoBrightnessAdjustmentChanged = false;
 
         synchronized (mLock) {
             mPendingUpdatePowerStateLocked = false;
@@ -601,8 +655,6 @@
                 mPendingRequestChangedLocked = false;
                 mustInitialize = true;
             } else if (mPendingRequestChangedLocked) {
-                autoBrightnessAdjustmentChanged = (mPowerRequest.screenAutoBrightnessAdjustment
-                        != mPendingRequestLocked.screenAutoBrightnessAdjustment);
                 mPowerRequest.copyFrom(mPendingRequestLocked);
                 mWaitingForNegativeProximity |= mPendingWaitForNegativeProximityLocked;
                 mPendingWaitForNegativeProximityLocked = false;
@@ -691,6 +743,14 @@
             brightness = PowerManager.BRIGHTNESS_OFF;
         }
 
+        // Always use the VR brightness when in the VR state.
+        if (state == Display.STATE_VR) {
+            brightness = mScreenBrightnessForVr;
+        }
+
+        if (brightness < 0 && mPowerRequest.screenBrightnessOverride > 0) {
+            brightness = mPowerRequest.screenBrightnessOverride;
+        }
 
         final boolean autoBrightnessEnabledInDoze =
                 mAllowAutoBrightnessWhileDozingConfig && Display.isDozeState(state);
@@ -698,38 +758,54 @@
                     && (state == Display.STATE_ON || autoBrightnessEnabledInDoze)
                     && brightness < 0
                     && mAutomaticBrightnessController != null;
-        final boolean brightnessAdjustmentChanged =
-                !Float.isNaN(mLastAutoBrightnessAdjustment)
-                && mPowerRequest.screenAutoBrightnessAdjustment != mLastAutoBrightnessAdjustment;
-        final boolean brightnessChanged = mLastBrightness >= 0
-                && mPowerRequest.screenBrightness != mLastBrightness;
+        boolean brightnessIsTemporary = false;
 
-        // Update the last set brightness values.
-        final boolean userInitiatedChange;
-        if (mPowerRequest.brightnessSetByUser && !mPowerRequest.brightnessIsTemporary) {
-            userInitiatedChange = autoBrightnessEnabled && brightnessAdjustmentChanged
-                    || !autoBrightnessEnabled && brightnessChanged;
-            mLastBrightness = mPowerRequest.screenBrightness;
-            mLastAutoBrightnessAdjustment = mPowerRequest.screenAutoBrightnessAdjustment;
-        } else {
-            userInitiatedChange = false;
+        final boolean userSetBrightnessChanged = updateUserSetScreenBrightness();
+        if (userSetBrightnessChanged) {
+            mTemporaryScreenBrightness = -1;
         }
 
+        // Use the temporary screen brightness if there isn't an override, either from
+        // WindowManager or based on the display state.
+        if (mTemporaryScreenBrightness > 0) {
+            brightness = mTemporaryScreenBrightness;
+            brightnessIsTemporary = true;
+        }
+
+        final boolean autoBrightnessAdjustmentChanged = updateAutoBrightnessAdjustment();
+        if (autoBrightnessAdjustmentChanged) {
+            mTemporaryAutoBrightnessAdjustment = Float.NaN;
+        }
+
+        // Use the autobrightness adjustment override if set.
+        final float autoBrightnessAdjustment;
+        if (!Float.isNaN(mTemporaryAutoBrightnessAdjustment)) {
+            autoBrightnessAdjustment = mTemporaryAutoBrightnessAdjustment;
+            brightnessIsTemporary = true;
+        } else {
+            autoBrightnessAdjustment = mAutoBrightnessAdjustment;
+        }
+
+        // Apply brightness boost.
+        // We do this here after deciding whether auto-brightness is enabled so that we don't
+        // disable the light sensor during this temporary state.  That way when boost ends we will
+        // be able to resume normal auto-brightness behavior without any delay.
+        if (mPowerRequest.boostScreenBrightness
+                && brightness != PowerManager.BRIGHTNESS_OFF) {
+            brightness = PowerManager.BRIGHTNESS_ON;
+        }
+
+        // If the brightness is already set then it's been overriden by something other than the
+        // user, or is a temporary adjustment.
+        final boolean userInitiatedChange = brightness < 0
+                && (autoBrightnessAdjustmentChanged || userSetBrightnessChanged);
+
         // Configure auto-brightness.
         if (mAutomaticBrightnessController != null) {
             mAutomaticBrightnessController.configure(autoBrightnessEnabled,
-                    mBrightnessConfiguration, mPowerRequest.screenAutoBrightnessAdjustment,
-                    state != Display.STATE_ON, userInitiatedChange);
-        }
-
-        // Apply brightness boost.
-        // We do this here after configuring auto-brightness so that we don't
-        // disable the light sensor during this temporary state.  That way when
-        // boost ends we will be able to resume normal auto-brightness behavior
-        // without any delay.
-        if (mPowerRequest.boostScreenBrightness
-                && brightness != PowerManager.BRIGHTNESS_OFF) {
-            brightness = PowerManager.BRIGHTNESS_ON;
+                    mBrightnessConfiguration,
+                    mLastUserSetScreenBrightness / (float) PowerManager.BRIGHTNESS_ON,
+                    autoBrightnessAdjustment, mPowerRequest.policy, userInitiatedChange);
         }
 
         // Apply auto-brightness.
@@ -744,6 +820,11 @@
                 if (mAppliedAutoBrightness && !autoBrightnessAdjustmentChanged) {
                     slowChange = true; // slowly adapt to auto-brightness
                 }
+                // Tell the rest of the system about the new brightness. Note that we do this
+                // before applying the low power or dim transformations so that the slider
+                // accurately represents the full possible range, even if they range changes what
+                // it means in absolute terms.
+                putScreenBrightnessSetting(brightness);
                 mAppliedAutoBrightness = true;
             } else {
                 mAppliedAutoBrightness = false;
@@ -762,9 +843,10 @@
         // provide a nominal default value for the case where auto-brightness
         // is not ready yet.
         if (brightness < 0) {
-            brightness = clampScreenBrightness(mPowerRequest.screenBrightness);
+            brightness = clampScreenBrightness(mLastUserSetScreenBrightness);
         }
 
+
         // Apply dimming by at least some minimum amount when user activity
         // timeout is about to expire.
         if (mPowerRequest.policy == DisplayPowerRequest.POLICY_DIM) {
@@ -833,19 +915,17 @@
             final boolean isDisplayContentVisible =
                     mColorFadeEnabled && mPowerState.getColorFadeLevel() == 1.0f;
             if (initialRampSkip || hasBrightnessBuckets
-                    || wasOrWillBeInVr || !isDisplayContentVisible) {
+                    || wasOrWillBeInVr || !isDisplayContentVisible || brightnessIsTemporary) {
                 animateScreenBrightness(brightness, 0);
             } else {
                 animateScreenBrightness(brightness,
                         slowChange ? mBrightnessRampRateSlow : mBrightnessRampRateFast);
             }
 
-            final float brightnessInNits = getNits(brightness);
-            if (!mPowerRequest.brightnessIsTemporary && brightnessInNits >= 0.0f) {
-                // We only want to track changes made by the user and on devices that can actually
-                // map the display backlight values into a physical brightness unit.
-                mBrightnessTracker.notifyBrightnessChanged(brightnessInNits, userInitiatedChange);
+            if (!brightnessIsTemporary) {
+                notifyBrightnessChanged(brightness, userInitiatedChange);
             }
+
         }
 
         // Determine whether the display is ready for use in the newly requested state.
@@ -913,6 +993,18 @@
         msg.sendToTarget();
     }
 
+    public void setTemporaryBrightness(int brightness) {
+        Message msg = mHandler.obtainMessage(MSG_SET_TEMPORARY_BRIGHTNESS,
+                brightness, 0 /*unused*/);
+        msg.sendToTarget();
+    }
+
+    public void setTemporaryAutoBrightnessAdjustment(float adjustment) {
+        Message msg = mHandler.obtainMessage(MSG_SET_TEMPORARY_AUTO_BRIGHTNESS_ADJUSTMENT,
+                Float.floatToIntBits(adjustment), 0 /*unused*/);
+        msg.sendToTarget();
+    }
+
     private void blockScreenOn() {
         if (mPendingScreenOnUnblocker == null) {
             Trace.asyncTraceBegin(Trace.TRACE_TAG_POWER, SCREEN_ON_BLOCKED_TRACE_NAME, 0);
@@ -1304,9 +1396,79 @@
         mHandler.post(mOnStateChangedRunnable);
     }
 
-    private float getNits(int backlight) {
+    private void handleSettingsChange() {
+        mPendingScreenBrightnessSetting = getScreenBrightnessSetting();
+        mPendingAutoBrightnessAdjustment = getAutoBrightnessAdjustmentSetting();
+        // We don't bother with a pending variable for VR screen brightness since we just
+        // immediately adapt to it.
+        mScreenBrightnessForVr = getScreenBrightnessForVrSetting();
+        sendUpdatePowerState();
+    }
+
+    private float getAutoBrightnessAdjustmentSetting() {
+        final float adj = Settings.System.getFloatForUser(mContext.getContentResolver(),
+                Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f, UserHandle.USER_CURRENT);
+        return Float.isNaN(adj) ? 0.0f : clampAutoBrightnessAdjustment(adj);
+    }
+
+    private int getScreenBrightnessSetting() {
+        final int brightness = Settings.System.getIntForUser(mContext.getContentResolver(),
+                Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessDefault,
+                UserHandle.USER_CURRENT);
+        return clampAbsoluteBrightness(brightness);
+    }
+
+    private int getScreenBrightnessForVrSetting() {
+        final int brightness = Settings.System.getIntForUser(mContext.getContentResolver(),
+                Settings.System.SCREEN_BRIGHTNESS_FOR_VR, mScreenBrightnessForVrDefault,
+                UserHandle.USER_CURRENT);
+        return clampAbsoluteBrightness(brightness);
+    }
+
+    private void putScreenBrightnessSetting(int brightness) {
+        mCurrentScreenBrightnessSetting = brightness;
+        Settings.System.putIntForUser(mContext.getContentResolver(),
+                Settings.System.SCREEN_BRIGHTNESS, brightness,
+                UserHandle.USER_CURRENT);
+    }
+
+    private boolean updateAutoBrightnessAdjustment() {
+        if (Float.isNaN(mPendingAutoBrightnessAdjustment)) {
+            return false;
+        }
+        if (mAutoBrightnessAdjustment == mPendingAutoBrightnessAdjustment) {
+            return false;
+        }
+        mAutoBrightnessAdjustment = mPendingAutoBrightnessAdjustment;
+        mPendingAutoBrightnessAdjustment = Float.NaN;
+        return true;
+    }
+
+    private boolean updateUserSetScreenBrightness() {
+        if (mPendingScreenBrightnessSetting < 0) {
+            return false;
+        }
+        if (mCurrentScreenBrightnessSetting == mPendingScreenBrightnessSetting) {
+            return false;
+        }
+        mLastUserSetScreenBrightness = mPendingScreenBrightnessSetting;
+        mPendingScreenBrightnessSetting = -1;
+        return true;
+    }
+
+    private void notifyBrightnessChanged(int brightness, boolean userInitiated) {
+        final float brightnessInNits = convertToNits(brightness);
+        if (brightnessInNits >= 0.0f) {
+            // We only want to track changes on devices that can actually map the display backlight
+            // values into a physical brightness unit since the value provided by the API is in
+            // nits and not using the arbitrary backlight units.
+            mBrightnessTracker.notifyBrightnessChanged(brightnessInNits, userInitiated);
+        }
+    }
+
+    private float convertToNits(int backlight) {
         if (mBrightnessMapper != null) {
-            return mBrightnessMapper.getNits(backlight);
+            return mBrightnessMapper.convertToNits(backlight);
         } else {
             return -1.0f;
         }
@@ -1390,8 +1552,11 @@
         pw.println("  mPendingProximityDebounceTime="
                 + TimeUtils.formatUptime(mPendingProximityDebounceTime));
         pw.println("  mScreenOffBecauseOfProximity=" + mScreenOffBecauseOfProximity);
-        pw.println("  mLastBrightness=" + mLastBrightness);
-        pw.println("  mLastAutoBrightnessAdjustment=" + mLastAutoBrightnessAdjustment);
+        pw.println("  mLastUserSetScreenBrightness=" + mLastUserSetScreenBrightness);
+        pw.println("  mCurrentScreenBrightnessSetting=" + mCurrentScreenBrightnessSetting);
+        pw.println("  mPendingScreenBrightnessSetting=" + mPendingScreenBrightnessSetting);
+        pw.println("  mAutoBrightnessAdjustment=" + mAutoBrightnessAdjustment);
+        pw.println("  mPendingAutoBrightnessAdjustment=" + mPendingAutoBrightnessAdjustment);
         pw.println("  mAppliedAutoBrightness=" + mAppliedAutoBrightness);
         pw.println("  mAppliedDimming=" + mAppliedDimming);
         pw.println("  mAppliedLowPower=" + mAppliedLowPower);
@@ -1456,6 +1621,10 @@
         return MathUtils.constrain(value, PowerManager.BRIGHTNESS_OFF, PowerManager.BRIGHTNESS_ON);
     }
 
+    private static float clampAutoBrightnessAdjustment(float value) {
+        return MathUtils.constrain(value, -1.0f, 1.0f);
+    }
+
     private final class DisplayControllerHandler extends Handler {
         public DisplayControllerHandler(Looper looper) {
             super(looper, null, true /*async*/);
@@ -1488,6 +1657,17 @@
                     mBrightnessConfiguration = (BrightnessConfiguration)msg.obj;
                     updatePowerState();
                     break;
+
+                case MSG_SET_TEMPORARY_BRIGHTNESS:
+                    // TODO: Should we have a a timeout for the temporary brightness?
+                    mTemporaryScreenBrightness = msg.arg1;
+                    updatePowerState();
+                    break;
+
+                case MSG_SET_TEMPORARY_AUTO_BRIGHTNESS_ADJUSTMENT:
+                    mTemporaryAutoBrightnessAdjustment = Float.intBitsToFloat(msg.arg1);
+                    updatePowerState();
+                    break;
             }
         }
     }
@@ -1509,6 +1689,18 @@
         }
     };
 
+
+    private final class SettingsObserver extends ContentObserver {
+        public SettingsObserver(Handler handler) {
+            super(handler);
+        }
+
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            handleSettingsChange();
+        }
+    }
+
     private final class ScreenOnUnblocker implements WindowManagerPolicy.ScreenOnListener {
         @Override
         public void onScreenOn() {
diff --git a/services/core/java/com/android/server/fingerprint/FingerprintService.java b/services/core/java/com/android/server/fingerprint/FingerprintService.java
index 3e1958d..b5f94b1 100644
--- a/services/core/java/com/android/server/fingerprint/FingerprintService.java
+++ b/services/core/java/com/android/server/fingerprint/FingerprintService.java
@@ -45,6 +45,7 @@
 import android.hardware.fingerprint.IFingerprintServiceLockoutResetCallback;
 import android.hardware.fingerprint.IFingerprintServiceReceiver;
 import android.os.Binder;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.DeadObjectException;
 import android.os.Environment;
@@ -58,6 +59,7 @@
 import android.os.SELinux;
 import android.os.ServiceManager;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.security.KeyStore;
@@ -1419,8 +1421,17 @@
             try {
                 userId = getUserOrWorkProfileId(clientPackage, userId);
                 if (userId != mCurrentUserId) {
-                    final File systemDir = Environment.getUserSystemDirectory(userId);
-                    final File fpDir = new File(systemDir, FP_DATA_DIR);
+                    File baseDir;
+                    if (Build.VERSION.FIRST_SDK_INT <= Build.VERSION_CODES.O_MR1
+                            && !SystemProperties.getBoolean(
+                                "ro.treble.supports_vendor_data", false)) {
+                        // TODO(b/72405644) remove the override when possible.
+                        baseDir = Environment.getUserSystemDirectory(userId);
+                    } else {
+                        baseDir = Environment.getDataVendorDeDirectory(userId);
+                    }
+
+                    File fpDir = new File(baseDir, FP_DATA_DIR);
                     if (!fpDir.exists()) {
                         if (!fpDir.mkdir()) {
                             Slog.v(TAG, "Cannot make directory: " + fpDir.getAbsolutePath());
@@ -1434,6 +1445,7 @@
                             return;
                         }
                     }
+
                     daemon.setActiveGroup(userId, fpDir.getAbsolutePath());
                     mCurrentUserId = userId;
                 }
diff --git a/services/core/java/com/android/server/job/JobSchedulerInternal.java b/services/core/java/com/android/server/job/JobSchedulerInternal.java
index c97eeaf..4e74908 100644
--- a/services/core/java/com/android/server/job/JobSchedulerInternal.java
+++ b/services/core/java/com/android/server/job/JobSchedulerInternal.java
@@ -59,7 +59,6 @@
 
     /**
      * Stats about the first load after boot and the most recent save.
-     * STOPSHIP Remove it and the relevant code once b/64536115 is fixed.
      */
     public class JobStorePersistStats {
         public int countAllJobsLoaded = -1;
diff --git a/services/core/java/com/android/server/job/JobServiceContext.java b/services/core/java/com/android/server/job/JobServiceContext.java
index 83a3c19..f23147b 100644
--- a/services/core/java/com/android/server/job/JobServiceContext.java
+++ b/services/core/java/com/android/server/job/JobServiceContext.java
@@ -400,7 +400,7 @@
                     (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
             PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                     runningJob.getTag());
-            wl.setWorkSource(new WorkSource(runningJob.getSourceUid()));
+            wl.setWorkSource(deriveWorkSource(runningJob));
             wl.setReferenceCounted(false);
             wl.acquire();
 
@@ -419,6 +419,19 @@
         }
     }
 
+    private WorkSource deriveWorkSource(JobStatus runningJob) {
+        final int jobUid = runningJob.getSourceUid();
+        if (WorkSource.isChainedBatteryAttributionEnabled(mContext)) {
+            WorkSource workSource = new WorkSource();
+            workSource.createWorkChain()
+                    .addNode(jobUid, null)
+                    .addNode(android.os.Process.SYSTEM_UID, "JobScheduler");
+            return workSource;
+        } else {
+            return new WorkSource(jobUid);
+        }
+    }
+
     /** If the client service crashes we reschedule this job and clean up. */
     @Override
     public void onServiceDisconnected(ComponentName name) {
diff --git a/services/core/java/com/android/server/job/JobStore.java b/services/core/java/com/android/server/job/JobStore.java
index 6da783c..a24a4ac 100644
--- a/services/core/java/com/android/server/job/JobStore.java
+++ b/services/core/java/com/android/server/job/JobStore.java
@@ -1052,13 +1052,18 @@
             final ArraySet<JobStatus> jobs = mJobs.get(uid);
             final int sourceUid = job.getSourceUid();
             final ArraySet<JobStatus> jobsForSourceUid = mJobsPerSourceUid.get(sourceUid);
-            boolean didRemove = jobs != null && jobs.remove(job) && jobsForSourceUid.remove(job);
-            if (didRemove) {
-                if (jobs.size() == 0) {
-                    // no more jobs for this uid; let the now-empty set object be GC'd.
+            final boolean didRemove = jobs != null && jobs.remove(job);
+            final boolean sourceRemove = jobsForSourceUid != null && jobsForSourceUid.remove(job);
+            if (didRemove != sourceRemove) {
+                Slog.wtf(TAG, "Job presence mismatch; caller=" + didRemove
+                        + " source=" + sourceRemove);
+            }
+            if (didRemove || sourceRemove) {
+                // no more jobs for this uid?  let the now-empty set objects be GC'd.
+                if (jobs != null && jobs.size() == 0) {
                     mJobs.remove(uid);
                 }
-                if (jobsForSourceUid.size() == 0) {
+                if (jobsForSourceUid != null && jobsForSourceUid.size() == 0) {
                     mJobsPerSourceUid.remove(sourceUid);
                 }
                 return true;
diff --git a/services/core/java/com/android/server/job/controllers/TimeController.java b/services/core/java/com/android/server/job/controllers/TimeController.java
index bbee0eb..a91f5a4 100644
--- a/services/core/java/com/android/server/job/controllers/TimeController.java
+++ b/services/core/java/com/android/server/job/controllers/TimeController.java
@@ -18,9 +18,11 @@
 
 import static com.android.server.job.JobSchedulerService.sElapsedRealtimeClock;
 
+import android.annotation.Nullable;
 import android.app.AlarmManager;
 import android.app.AlarmManager.OnAlarmListener;
 import android.content.Context;
+import android.os.Process;
 import android.os.UserHandle;
 import android.os.WorkSource;
 import android.util.Slog;
@@ -52,6 +54,8 @@
     private long mNextJobExpiredElapsedMillis;
     private long mNextDelayExpiredElapsedMillis;
 
+    private final boolean mChainedAttributionEnabled;
+
     private AlarmManager mAlarmService = null;
     /** List of tracked jobs, sorted asc. by deadline */
     private final List<JobStatus> mTrackedJobs = new LinkedList<>();
@@ -71,6 +75,7 @@
 
         mNextJobExpiredElapsedMillis = Long.MAX_VALUE;
         mNextDelayExpiredElapsedMillis = Long.MAX_VALUE;
+        mChainedAttributionEnabled = WorkSource.isChainedBatteryAttributionEnabled(context);
     }
 
     /**
@@ -113,7 +118,7 @@
             maybeUpdateAlarmsLocked(
                     job.hasTimingDelayConstraint() ? job.getEarliestRunTime() : Long.MAX_VALUE,
                     job.hasDeadlineConstraint() ? job.getLatestRunTimeElapsed() : Long.MAX_VALUE,
-                    new WorkSource(job.getSourceUid(), job.getSourcePackageName()));
+                    deriveWorkSource(job.getSourceUid(), job.getSourcePackageName()));
         }
     }
 
@@ -179,9 +184,8 @@
                     break;
                 }
             }
-            setDeadlineExpiredAlarmLocked(nextExpiryTime, nextExpiryPackageName != null
-                    ? new WorkSource(nextExpiryUid, nextExpiryPackageName)
-                    : new WorkSource(nextExpiryUid));
+            setDeadlineExpiredAlarmLocked(nextExpiryTime,
+                    deriveWorkSource(nextExpiryUid, nextExpiryPackageName));
         }
     }
 
@@ -236,9 +240,20 @@
             if (ready) {
                 mStateChangedListener.onControllerStateChanged();
             }
-            setDelayExpiredAlarmLocked(nextDelayTime, nextDelayPackageName != null
-                    ? new WorkSource(nextDelayUid, nextDelayPackageName)
-                    : new WorkSource(nextDelayUid));
+            setDelayExpiredAlarmLocked(nextDelayTime,
+                    deriveWorkSource(nextDelayUid, nextDelayPackageName));
+        }
+    }
+
+    private WorkSource deriveWorkSource(int uid, @Nullable String packageName) {
+        if (mChainedAttributionEnabled) {
+            WorkSource ws = new WorkSource();
+            ws.createWorkChain()
+                    .addNode(uid, packageName)
+                    .addNode(Process.SYSTEM_UID, "JobScheduler");
+            return ws;
+        } else {
+            return packageName == null ? new WorkSource(uid) : new WorkSource(uid, packageName);
         }
     }
 
diff --git a/services/core/java/com/android/server/location/GnssLocationProvider.java b/services/core/java/com/android/server/location/GnssLocationProvider.java
index 48d275c..55c0f5a 100644
--- a/services/core/java/com/android/server/location/GnssLocationProvider.java
+++ b/services/core/java/com/android/server/location/GnssLocationProvider.java
@@ -64,6 +64,7 @@
 import android.os.SystemProperties;
 import android.os.UserHandle;
 import android.os.WorkSource;
+import android.os.WorkSource.WorkChain;
 import android.provider.Settings;
 import android.provider.Telephony.Carriers;
 import android.provider.Telephony.Sms.Intents;
@@ -346,7 +347,8 @@
 
     // Current request from underlying location clients.
     private ProviderRequest mProviderRequest = null;
-    // Current list of underlying location clients.
+    // The WorkSource associated with the most recent client request (i.e, most recent call to
+    // setRequest).
     private WorkSource mWorkSource = null;
     // True if gps should be disabled (used to support battery saver mode in settings).
     private boolean mDisableGps = false;
@@ -408,6 +410,7 @@
     private final IAppOpsService mAppOpsService;
     private final IBatteryStats mBatteryStats;
 
+    // Current list of underlying location clients.
     // only modified on handler thread
     private WorkSource mClientSource = new WorkSource();
 
@@ -1345,46 +1348,80 @@
     }
 
     private void updateClientUids(WorkSource source) {
-        // Update work source.
-        WorkSource[] changes = mClientSource.setReturningDiffs(source);
-        if (changes == null) {
+        if (source.equals(mClientSource)) {
             return;
         }
-        WorkSource newWork = changes[0];
-        WorkSource goneWork = changes[1];
 
-        // Update sources that were not previously tracked.
-        if (newWork != null) {
-            int lastuid = -1;
-            for (int i = 0; i < newWork.size(); i++) {
-                try {
-                    int uid = newWork.get(i);
-                    mAppOpsService.startOperation(AppOpsManager.getToken(mAppOpsService),
-                            AppOpsManager.OP_GPS, uid, newWork.getName(i));
-                    if (uid != lastuid) {
-                        lastuid = uid;
-                        mBatteryStats.noteStartGps(uid);
-                    }
-                } catch (RemoteException e) {
-                    Log.w(TAG, "RemoteException", e);
-                }
-            }
+        // (1) Inform BatteryStats that the list of IDs we're tracking changed.
+        try {
+            mBatteryStats.noteGpsChanged(mClientSource, source);
+        } catch (RemoteException e) {
+            Log.w(TAG, "RemoteException", e);
         }
 
-        // Update sources that are no longer tracked.
-        if (goneWork != null) {
-            int lastuid = -1;
-            for (int i = 0; i < goneWork.size(); i++) {
-                try {
-                    int uid = goneWork.get(i);
-                    mAppOpsService.finishOperation(AppOpsManager.getToken(mAppOpsService),
-                            AppOpsManager.OP_GPS, uid, goneWork.getName(i));
-                    if (uid != lastuid) {
-                        lastuid = uid;
-                        mBatteryStats.noteStopGps(uid);
+        // (2) Inform AppOps service about the list of changes to UIDs.
+
+        List<WorkChain>[] diffs = WorkSource.diffChains(mClientSource, source);
+        if (diffs != null) {
+            List<WorkChain> newChains = diffs[0];
+            List<WorkChain> goneChains = diffs[1];
+
+            if (newChains != null) {
+                for (int i = 0; i < newChains.size(); ++i) {
+                    final WorkChain newChain = newChains.get(i);
+                    try {
+                        mAppOpsService.startOperation(AppOpsManager.getToken(mAppOpsService),
+                                AppOpsManager.OP_GPS, newChain.getAttributionUid(),
+                                newChain.getAttributionTag());
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "RemoteException", e);
                     }
-                } catch (RemoteException e) {
-                    Log.w(TAG, "RemoteException", e);
+                }
+            }
+
+            if (goneChains != null) {
+                for (int i = 0; i < goneChains.size(); i++) {
+                    final WorkChain goneChain = goneChains.get(i);
+                    try {
+                        mAppOpsService.finishOperation(AppOpsManager.getToken(mAppOpsService),
+                                AppOpsManager.OP_GPS, goneChain.getAttributionUid(),
+                                goneChain.getAttributionTag());
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "RemoteException", e);
+                    }
+                }
+            }
+
+            mClientSource.transferWorkChains(source);
+        }
+
+        // Update the flat UIDs and names list and inform app-ops of all changes.
+        WorkSource[] changes = mClientSource.setReturningDiffs(source);
+        if (changes != null) {
+            WorkSource newWork = changes[0];
+            WorkSource goneWork = changes[1];
+
+            // Update sources that were not previously tracked.
+            if (newWork != null) {
+                for (int i = 0; i < newWork.size(); i++) {
+                    try {
+                        mAppOpsService.startOperation(AppOpsManager.getToken(mAppOpsService),
+                                AppOpsManager.OP_GPS, newWork.get(i), newWork.getName(i));
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "RemoteException", e);
+                    }
+                }
+            }
+
+            // Update sources that are no longer tracked.
+            if (goneWork != null) {
+                for (int i = 0; i < goneWork.size(); i++) {
+                    try {
+                        mAppOpsService.finishOperation(AppOpsManager.getToken(mAppOpsService),
+                                AppOpsManager.OP_GPS, goneWork.get(i), goneWork.getName(i));
+                    } catch (RemoteException e) {
+                        Log.w(TAG, "RemoteException", e);
+                    }
                 }
             }
         }
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/RecoverableKeyStoreManager.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/RecoverableKeyStoreManager.java
index b6c3c66..0d567d1 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/RecoverableKeyStoreManager.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/RecoverableKeyStoreManager.java
@@ -40,6 +40,7 @@
 import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.util.HexDump;
 import com.android.server.locksettings.recoverablekeystore.storage.RecoverableKeyStoreDb;
 import com.android.server.locksettings.recoverablekeystore.storage.RecoverySessionStorage;
 import com.android.server.locksettings.recoverablekeystore.storage.RecoverySnapshotStorage;
@@ -455,20 +456,64 @@
     private byte[] decryptRecoveryKey(
             RecoverySessionStorage.Entry sessionEntry, byte[] encryptedClaimResponse)
             throws RemoteException, ServiceSpecificException {
+        // TODO: Remove the extensive loggings in this function
+        byte[] locallyEncryptedKey;
         try {
-            byte[] locallyEncryptedKey = KeySyncUtils.decryptRecoveryClaimResponse(
+            locallyEncryptedKey = KeySyncUtils.decryptRecoveryClaimResponse(
                     sessionEntry.getKeyClaimant(),
                     sessionEntry.getVaultParams(),
                     encryptedClaimResponse);
-            return KeySyncUtils.decryptRecoveryKey(sessionEntry.getLskfHash(), locallyEncryptedKey);
-        } catch (InvalidKeyException | AEADBadTagException e) {
+        } catch (InvalidKeyException e) {
+            Log.e(TAG, "Got InvalidKeyException during decrypting recovery claim response", e);
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getKeyClaimant()",
+                    sessionEntry.getKeyClaimant()));
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getVaultParams()",
+                    sessionEntry.getVaultParams()));
+            Log.e(TAG, constructLoggingMessage("encryptedClaimResponse", encryptedClaimResponse));
             throw new ServiceSpecificException(ERROR_DECRYPTION_FAILED,
                     "Failed to decrypt recovery key " + e.getMessage());
-
+        } catch (AEADBadTagException e) {
+            Log.e(TAG, "Got AEADBadTagException during decrypting recovery claim response", e);
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getKeyClaimant()",
+                    sessionEntry.getKeyClaimant()));
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getVaultParams()",
+                    sessionEntry.getVaultParams()));
+            Log.e(TAG, constructLoggingMessage("encryptedClaimResponse", encryptedClaimResponse));
+            throw new ServiceSpecificException(ERROR_DECRYPTION_FAILED,
+                    "Failed to decrypt recovery key " + e.getMessage());
         } catch (NoSuchAlgorithmException e) {
             // Should never happen: all the algorithms used are required by AOSP implementations
             throw new ServiceSpecificException(ERROR_SERVICE_INTERNAL_ERROR, e.getMessage());
         }
+
+        try {
+            return KeySyncUtils.decryptRecoveryKey(sessionEntry.getLskfHash(), locallyEncryptedKey);
+        } catch (InvalidKeyException e) {
+            Log.e(TAG, "Got InvalidKeyException during decrypting recovery key", e);
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getLskfHash()",
+                    sessionEntry.getLskfHash()));
+            Log.e(TAG, constructLoggingMessage("locallyEncryptedKey", locallyEncryptedKey));
+            throw new ServiceSpecificException(ERROR_DECRYPTION_FAILED,
+                    "Failed to decrypt recovery key " + e.getMessage());
+        } catch (AEADBadTagException e) {
+            Log.e(TAG, "Got AEADBadTagException during decrypting recovery key", e);
+            Log.e(TAG, constructLoggingMessage("sessionEntry.getLskfHash()",
+                    sessionEntry.getLskfHash()));
+            Log.e(TAG, constructLoggingMessage("locallyEncryptedKey", locallyEncryptedKey));
+            throw new ServiceSpecificException(ERROR_DECRYPTION_FAILED,
+                    "Failed to decrypt recovery key " + e.getMessage());
+        } catch (NoSuchAlgorithmException e) {
+            // Should never happen: all the algorithms used are required by AOSP implementations
+            throw new ServiceSpecificException(ERROR_SERVICE_INTERNAL_ERROR, e.getMessage());
+        }
+    }
+
+    private String constructLoggingMessage(String key, byte[] value) {
+        if (value == null) {
+            return key + " is null";
+        } else {
+            return key + ": " + HexDump.toHexString(value);
+        }
     }
 
     /**
diff --git a/services/core/java/com/android/server/media/MediaSession2Record.java b/services/core/java/com/android/server/media/MediaSession2Record.java
index c59c5f6..4000a11 100644
--- a/services/core/java/com/android/server/media/MediaSession2Record.java
+++ b/services/core/java/com/android/server/media/MediaSession2Record.java
@@ -23,7 +23,7 @@
 import android.media.IMediaSession2;
 import android.media.MediaController2;
 import android.media.MediaSession2;
-import android.media.SessionToken;
+import android.media.SessionToken2;
 import android.os.Handler;
 import android.os.Looper;
 import android.util.Log;
@@ -96,7 +96,7 @@
     // TODO(jaewan): also add uid for multiuser support
     @CallSuper
     public @Nullable
-    SessionToken createSessionToken(int sessionPid, String packageName, String id,
+    SessionToken2 createSessionToken(int sessionPid, String packageName, String id,
             IMediaSession2 sessionBinder) {
         if (mController != null) {
             if (mSessionPid != sessionPid) {
@@ -130,20 +130,20 @@
      */
     MediaController2 onCreateMediaController(
             String packageName, String id, IMediaSession2 sessionBinder) {
-        SessionToken token = new SessionToken(
-                SessionToken.TYPE_SESSION, packageName, id, null, sessionBinder);
+        SessionToken2 token = new SessionToken2(
+                SessionToken2.TYPE_SESSION, packageName, id, null, sessionBinder);
         return createMediaController(token);
     }
 
-    final MediaController2 createMediaController(SessionToken token) {
+    final MediaController2 createMediaController(SessionToken2 token) {
         mControllerCallback = new ControllerCallback();
-        return new MediaController2(mContext, token, mControllerCallback, mMainExecutor);
+        return new MediaController2(mContext, token, mMainExecutor, mControllerCallback);
     }
 
     /**
      * @return controller. Note that framework can only call oneway calls.
      */
-    public SessionToken getToken() {
+    public SessionToken2 getToken() {
         return mController == null ? null : mController.getSessionToken();
     }
 
diff --git a/services/core/java/com/android/server/media/MediaSessionService.java b/services/core/java/com/android/server/media/MediaSessionService.java
index c9c7d04..c7f6014 100644
--- a/services/core/java/com/android/server/media/MediaSessionService.java
+++ b/services/core/java/com/android/server/media/MediaSessionService.java
@@ -40,7 +40,7 @@
 import android.media.IRemoteVolumeController;
 import android.media.MediaLibraryService2;
 import android.media.MediaSessionService2;
-import android.media.SessionToken;
+import android.media.SessionToken2;
 import android.media.session.IActiveSessionsListener;
 import android.media.session.ICallback;
 import android.media.session.IOnMediaKeyListener;
@@ -481,7 +481,7 @@
                             + serviceInfo.packageName + "/" + serviceInfo.name);
                 } else {
                     int type = (libraryServices.contains(services.get(i)))
-                            ? SessionToken.TYPE_LIBRARY_SERVICE : SessionToken.TYPE_SESSION_SERVICE;
+                            ? SessionToken2.TYPE_LIBRARY_SERVICE : SessionToken2.TYPE_SESSION_SERVICE;
                     MediaSessionService2Record record =
                             new MediaSessionService2Record(getContext(), mSessionDestroyedListener,
                                     type, serviceInfo.packageName, serviceInfo.name, id);
@@ -1416,7 +1416,7 @@
             int pid = Binder.getCallingPid();
 
             MediaSession2Record record;
-            SessionToken token;
+            SessionToken2 token;
             // TODO(jaewan): Add sanity check for the token if calling package is from uid.
             synchronized (mLock) {
                 record = getSessionRecordLocked(sessionPackage, id);
@@ -1448,7 +1448,7 @@
                     boolean isActive = record.getSessionPid() != 0;
                     if ((!activeSessionOnly && isSessionService)
                             || (!sessionServiceOnly && isActive)) {
-                        SessionToken token = record.getToken();
+                        SessionToken2 token = record.getToken();
                         if (token != null) {
                             tokens.add(token.toBundle());
                         } else {
diff --git a/services/core/java/com/android/server/media/MediaSessionService2Record.java b/services/core/java/com/android/server/media/MediaSessionService2Record.java
index bd97dbc..d033f55 100644
--- a/services/core/java/com/android/server/media/MediaSessionService2Record.java
+++ b/services/core/java/com/android/server/media/MediaSessionService2Record.java
@@ -19,7 +19,7 @@
 import android.content.Context;
 import android.media.IMediaSession2;
 import android.media.MediaController2;
-import android.media.SessionToken;
+import android.media.SessionToken2;
 import android.media.MediaSessionService2;
 
 /**
@@ -33,7 +33,7 @@
 
     private final int mType;
     private final String mServiceName;
-    private final SessionToken mToken;
+    private final SessionToken2 mToken;
 
     public MediaSessionService2Record(Context context,
             SessionDestroyedListener sessionDestroyedListener, int type,
@@ -41,7 +41,7 @@
         super(context, sessionDestroyedListener);
         mType = type;
         mServiceName = serviceName;
-        mToken = new SessionToken(mType, packageName, id, mServiceName, null);
+        mToken = new SessionToken2(mType, packageName, id, mServiceName, null);
     }
 
     /**
@@ -51,7 +51,7 @@
     @Override
     MediaController2 onCreateMediaController(
             String packageName, String id, IMediaSession2 sessionBinder) {
-        SessionToken token = new SessionToken(mType, packageName, id, mServiceName, sessionBinder);
+        SessionToken2 token = new SessionToken2(mType, packageName, id, mServiceName, sessionBinder);
         return createMediaController(token);
     }
 
@@ -59,7 +59,7 @@
      * @return token with no session binder information.
      */
     @Override
-    public SessionToken getToken() {
+    public SessionToken2 getToken() {
         return mToken;
     }
 }
diff --git a/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java b/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
index 321af43..7600e81 100644
--- a/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
+++ b/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
@@ -283,7 +283,18 @@
     }
 
     void onOverlayPackageRemoved(@NonNull final String packageName, final int userId) {
-        Slog.wtf(TAG, "onOverlayPackageRemoved called, but only pre-installed overlays supported");
+        try {
+            final OverlayInfo overlayInfo = mSettings.getOverlayInfo(packageName, userId);
+            if (mSettings.remove(packageName, userId)) {
+                removeIdmapIfPossible(overlayInfo);
+                if (overlayInfo.isEnabled()) {
+                    // Only trigger updates if the overlay was enabled.
+                    mListener.onOverlaysChanged(overlayInfo.targetPackageName, userId);
+                }
+            }
+        } catch (OverlayManagerSettings.BadKeyException e) {
+            Slog.e(TAG, "failed to remove overlay", e);
+        }
     }
 
     OverlayInfo getOverlayInfo(@NonNull final String packageName, final int userId) {
diff --git a/services/core/java/com/android/server/om/OverlayManagerSettings.java b/services/core/java/com/android/server/om/OverlayManagerSettings.java
index 7d00423..17b38de 100644
--- a/services/core/java/com/android/server/om/OverlayManagerSettings.java
+++ b/services/core/java/com/android/server/om/OverlayManagerSettings.java
@@ -104,7 +104,7 @@
         return true;
     }
 
-    OverlayInfo getOverlayInfo(@NonNull final String packageName, final int userId)
+    @NonNull OverlayInfo getOverlayInfo(@NonNull final String packageName, final int userId)
             throws BadKeyException {
         final int idx = select(packageName, userId);
         if (idx < 0) {
diff --git a/services/core/java/com/android/server/pm/Installer.java b/services/core/java/com/android/server/pm/Installer.java
index 4b3758d..c3f20af 100644
--- a/services/core/java/com/android/server/pm/Installer.java
+++ b/services/core/java/com/android/server/pm/Installer.java
@@ -16,7 +16,10 @@
 
 package com.android.server.pm;
 
+import android.annotation.AppIdInt;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.UserIdInt;
 import android.content.Context;
 import android.content.pm.PackageStats;
 import android.os.Build;
@@ -33,6 +36,8 @@
 
 import dalvik.system.VMRuntime;
 
+import java.io.FileDescriptor;
+
 public class Installer extends SystemService {
     private static final String TAG = "Installer";
 
@@ -58,6 +63,9 @@
     public static final int DEXOPT_STORAGE_DE     = 1 << 8;
     /** Indicates that dexopt is invoked from the background service. */
     public static final int DEXOPT_IDLE_BACKGROUND_JOB = 1 << 9;
+    /* Indicates that dexopt should not restrict access to private APIs.
+     * Must be kept in sync with com.android.internal.os.ZygoteInit. */
+    public static final int DEXOPT_DISABLE_HIDDEN_API_CHECKS = 1 << 10;
 
     // NOTE: keep in sync with installd
     public static final int FLAG_CLEAR_CACHE_ONLY = 1 << 8;
@@ -281,43 +289,44 @@
     public void dexopt(String apkPath, int uid, @Nullable String pkgName, String instructionSet,
             int dexoptNeeded, @Nullable String outputPath, int dexFlags,
             String compilerFilter, @Nullable String volumeUuid, @Nullable String sharedLibraries,
-            @Nullable String seInfo, boolean downgrade, int targetSdkVersion)
-            throws InstallerException {
+            @Nullable String seInfo, boolean downgrade, int targetSdkVersion,
+            @Nullable String profileName) throws InstallerException {
         assertValidInstructionSet(instructionSet);
         if (!checkBeforeRemote()) return;
         try {
             mInstalld.dexopt(apkPath, uid, pkgName, instructionSet, dexoptNeeded, outputPath,
                     dexFlags, compilerFilter, volumeUuid, sharedLibraries, seInfo, downgrade,
-                    targetSdkVersion);
+                    targetSdkVersion, profileName);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
     }
 
-    public boolean mergeProfiles(int uid, String packageName) throws InstallerException {
-        if (!checkBeforeRemote()) return false;
-        try {
-            return mInstalld.mergeProfiles(uid, packageName);
-        } catch (Exception e) {
-            throw InstallerException.from(e);
-        }
-    }
-
-    public boolean dumpProfiles(int uid, String packageName, String codePaths)
+    public boolean mergeProfiles(int uid, String packageName, String profileName)
             throws InstallerException {
         if (!checkBeforeRemote()) return false;
         try {
-            return mInstalld.dumpProfiles(uid, packageName, codePaths);
+            return mInstalld.mergeProfiles(uid, packageName, profileName);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
     }
 
-    public boolean copySystemProfile(String systemProfile, int uid, String packageName)
+    public boolean dumpProfiles(int uid, String packageName, String profileName, String codePath)
             throws InstallerException {
         if (!checkBeforeRemote()) return false;
         try {
-            return mInstalld.copySystemProfile(systemProfile, uid, packageName);
+            return mInstalld.dumpProfiles(uid, packageName, profileName, codePath);
+        } catch (Exception e) {
+            throw InstallerException.from(e);
+        }
+    }
+
+    public boolean copySystemProfile(String systemProfile, int uid, String packageName,
+                String profileName) throws InstallerException {
+        if (!checkBeforeRemote()) return false;
+        try {
+            return mInstalld.copySystemProfile(systemProfile, uid, packageName, profileName);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
@@ -361,10 +370,10 @@
         }
     }
 
-    public void clearAppProfiles(String packageName) throws InstallerException {
+    public void clearAppProfiles(String packageName, String profileName) throws InstallerException {
         if (!checkBeforeRemote()) return;
         try {
-            mInstalld.clearAppProfiles(packageName);
+            mInstalld.clearAppProfiles(packageName, profileName);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
@@ -473,6 +482,26 @@
         }
     }
 
+    public void installApkVerity(String filePath, FileDescriptor verityInput)
+            throws InstallerException {
+        if (!checkBeforeRemote()) return;
+        try {
+            mInstalld.installApkVerity(filePath, verityInput);
+        } catch (Exception e) {
+            throw InstallerException.from(e);
+        }
+    }
+
+    public void assertFsverityRootHashMatches(String filePath, @NonNull byte[] expectedHash)
+            throws InstallerException {
+        if (!checkBeforeRemote()) return;
+        try {
+            mInstalld.assertFsverityRootHashMatches(filePath, expectedHash);
+        } catch (Exception e) {
+            throw InstallerException.from(e);
+        }
+    }
+
     public boolean reconcileSecondaryDexFile(String apkPath, String packageName, int uid,
             String[] isas, @Nullable String volumeUuid, int flags) throws InstallerException {
         for (int i = 0; i < isas.length; i++) {
@@ -497,21 +526,21 @@
         }
     }
 
-    public boolean createProfileSnapshot(int appId, String packageName, String codePath)
-            throws InstallerException {
+    public boolean createProfileSnapshot(int appId, String packageName, String profileName,
+            String classpath) throws InstallerException {
         if (!checkBeforeRemote()) return false;
         try {
-            return mInstalld.createProfileSnapshot(appId, packageName, codePath);
+            return mInstalld.createProfileSnapshot(appId, packageName, profileName, classpath);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
     }
 
-    public void destroyProfileSnapshot(String packageName, String codePath)
+    public void destroyProfileSnapshot(String packageName, String profileName)
             throws InstallerException {
         if (!checkBeforeRemote()) return;
         try {
-            mInstalld.destroyProfileSnapshot(packageName, codePath);
+            mInstalld.destroyProfileSnapshot(packageName, profileName);
         } catch (Exception e) {
             throw InstallerException.from(e);
         }
@@ -535,6 +564,17 @@
         }
     }
 
+    public boolean prepareAppProfile(String pkg, @UserIdInt int userId, @AppIdInt int appId,
+            String profileName, String codePath, String dexMetadataPath) throws InstallerException {
+        if (!checkBeforeRemote()) return false;
+        try {
+            return mInstalld.prepareAppProfile(pkg, userId, appId, profileName, codePath,
+                    dexMetadataPath);
+        } catch (Exception e) {
+            throw InstallerException.from(e);
+        }
+    }
+
     private static void assertValidInstructionSet(String instructionSet)
             throws InstallerException {
         for (String abi : Build.SUPPORTED_ABIS) {
diff --git a/services/core/java/com/android/server/pm/OtaDexoptService.java b/services/core/java/com/android/server/pm/OtaDexoptService.java
index 0395011..5bf38dc 100644
--- a/services/core/java/com/android/server/pm/OtaDexoptService.java
+++ b/services/core/java/com/android/server/pm/OtaDexoptService.java
@@ -261,12 +261,12 @@
                     String instructionSet, int dexoptNeeded, @Nullable String outputPath,
                     int dexFlags, String compilerFilter, @Nullable String volumeUuid,
                     @Nullable String sharedLibraries, @Nullable String seInfo, boolean downgrade,
-                    int targetSdkVersion)
+                    int targetSdkVersion, @Nullable String profileName)
                     throws InstallerException {
                 final StringBuilder builder = new StringBuilder();
 
-                // The version. Right now it's 4.
-                builder.append("4 ");
+                // The version. Right now it's 5.
+                builder.append("5 ");
 
                 builder.append("dexopt");
 
@@ -283,6 +283,7 @@
                 encodeParameter(builder, seInfo);
                 encodeParameter(builder, downgrade);
                 encodeParameter(builder, targetSdkVersion);
+                encodeParameter(builder, profileName);
 
                 commands.add(builder.toString());
             }
diff --git a/services/core/java/com/android/server/pm/PackageDexOptimizer.java b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
index 91df87b..cde8cb7 100644
--- a/services/core/java/com/android/server/pm/PackageDexOptimizer.java
+++ b/services/core/java/com/android/server/pm/PackageDexOptimizer.java
@@ -20,6 +20,7 @@
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageParser;
+import android.content.pm.dex.ArtManager;
 import android.os.FileUtils;
 import android.os.PowerManager;
 import android.os.SystemClock;
@@ -55,6 +56,7 @@
 import static com.android.server.pm.Installer.DEXOPT_STORAGE_CE;
 import static com.android.server.pm.Installer.DEXOPT_STORAGE_DE;
 import static com.android.server.pm.Installer.DEXOPT_IDLE_BACKGROUND_JOB;
+import static com.android.server.pm.Installer.DEXOPT_DISABLE_HIDDEN_API_CHECKS;
 import static com.android.server.pm.InstructionSets.getAppDexInstructionSets;
 import static com.android.server.pm.InstructionSets.getDexCodeInstructionSets;
 
@@ -110,11 +112,6 @@
             return false;
         }
 
-        // We do not dexopt a priv-app package when pm.dexopt.priv-apps-oob is true.
-        if (pkg.isPrivileged()) {
-            return !SystemProperties.getBoolean("pm.dexopt.priv-apps-oob", false);
-        }
-
         return true;
     }
 
@@ -210,12 +207,14 @@
                 }
             }
 
+            String profileName = ArtManager.getProfileName(i == 0 ? null : pkg.splitNames[i - 1]);
+
             final boolean isUsedByOtherApps = options.isDexoptAsSharedLibrary()
                     || packageUseInfo.isUsedByOtherApps(path);
             final String compilerFilter = getRealCompilerFilter(pkg.applicationInfo,
                 options.getCompilerFilter(), isUsedByOtherApps);
             final boolean profileUpdated = options.isCheckForProfileUpdates() &&
-                isProfileUpdated(pkg, sharedGid, compilerFilter);
+                isProfileUpdated(pkg, sharedGid, profileName, compilerFilter);
 
             // Get the dexopt flags after getRealCompilerFilter to make sure we get the correct
             // flags.
@@ -224,7 +223,7 @@
             for (String dexCodeIsa : dexCodeInstructionSets) {
                 int newResult = dexOptPath(pkg, path, dexCodeIsa, compilerFilter,
                         profileUpdated, classLoaderContexts[i], dexoptFlags, sharedGid,
-                        packageStats, options.isDowngrade());
+                        packageStats, options.isDowngrade(), profileName);
                 // The end result is:
                 //  - FAILED if any path failed,
                 //  - PERFORMED if at least one path needed compilation,
@@ -248,7 +247,8 @@
     @GuardedBy("mInstallLock")
     private int dexOptPath(PackageParser.Package pkg, String path, String isa,
             String compilerFilter, boolean profileUpdated, String classLoaderContext,
-            int dexoptFlags, int uid, CompilerStats.PackageStats packageStats, boolean downgrade) {
+            int dexoptFlags, int uid, CompilerStats.PackageStats packageStats, boolean downgrade,
+            String profileName) {
         int dexoptNeeded = getDexoptNeeded(path, isa, compilerFilter, classLoaderContext,
                 profileUpdated, downgrade);
         if (Math.abs(dexoptNeeded) == DexFile.NO_DEXOPT_NEEDED) {
@@ -274,7 +274,8 @@
             // primary dex files.
             mInstaller.dexopt(path, uid, pkg.packageName, isa, dexoptNeeded, oatDir, dexoptFlags,
                     compilerFilter, pkg.volumeUuid, classLoaderContext, pkg.applicationInfo.seInfo,
-                    false /* downgrade*/, pkg.applicationInfo.targetSdkVersion);
+                    false /* downgrade*/, pkg.applicationInfo.targetSdkVersion,
+                    profileName);
 
             if (packageStats != null) {
                 long endTime = System.currentTimeMillis();
@@ -395,7 +396,7 @@
                 mInstaller.dexopt(path, info.uid, info.packageName, isa, /*dexoptNeeded*/ 0,
                         /*oatDir*/ null, dexoptFlags,
                         compilerFilter, info.volumeUuid, classLoaderContext, info.seInfoUser,
-                        options.isDowngrade(), info.targetSdkVersion);
+                        options.isDowngrade(), info.targetSdkVersion, /*profileName*/ null);
             }
 
             return DEX_OPT_PERFORMED;
@@ -480,6 +481,11 @@
             boolean isUsedByOtherApps) {
         int flags = info.flags;
         boolean vmSafeMode = (flags & ApplicationInfo.FLAG_VM_SAFE_MODE) != 0;
+        // When pm.dexopt.priv-apps-oob is true, we only verify privileged apps.
+        if (info.isPrivilegedApp() &&
+            SystemProperties.getBoolean("pm.dexopt.priv-apps-oob", false)) {
+          return "verify";
+        }
         if (vmSafeMode) {
             return getSafeModeCompilerFilter(targetCompilerFilter);
         }
@@ -509,12 +515,18 @@
         boolean isProfileGuidedFilter = isProfileGuidedCompilerFilter(compilerFilter);
         boolean isPublic = !info.isForwardLocked() && !isProfileGuidedFilter;
         int profileFlag = isProfileGuidedFilter ? DEXOPT_PROFILE_GUIDED : 0;
+        // System apps are invoked with a runtime flag which exempts them from
+        // restrictions on hidden API usage. We dexopt with the same runtime flag
+        // otherwise offending methods would have to be re-verified at runtime
+        // and we want to avoid the performance overhead of that.
+        int hiddenApiFlag = info.isAllowedToUseHiddenApi() ? DEXOPT_DISABLE_HIDDEN_API_CHECKS : 0;
         int dexFlags =
                 (isPublic ? DEXOPT_PUBLIC : 0)
                 | (debuggable ? DEXOPT_DEBUGGABLE : 0)
                 | profileFlag
                 | (options.isBootComplete() ? DEXOPT_BOOTCOMPLETE : 0)
-                | (options.isDexoptIdleBackgroundJob() ? DEXOPT_IDLE_BACKGROUND_JOB : 0);
+                | (options.isDexoptIdleBackgroundJob() ? DEXOPT_IDLE_BACKGROUND_JOB : 0)
+                | hiddenApiFlag;
         return adjustDexoptFlags(dexFlags);
     }
 
@@ -543,14 +555,15 @@
      * current profile and the reference profile will be merged and subsequent calls
      * may return a different result.
      */
-    private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String compilerFilter) {
+    private boolean isProfileUpdated(PackageParser.Package pkg, int uid, String profileName,
+            String compilerFilter) {
         // Check if we are allowed to merge and if the compiler filter is profile guided.
         if (!isProfileGuidedCompilerFilter(compilerFilter)) {
             return false;
         }
         // Merge profiles. It returns whether or not there was an updated in the profile info.
         try {
-            return mInstaller.mergeProfiles(uid, pkg.packageName);
+            return mInstaller.mergeProfiles(uid, pkg.packageName, profileName);
         } catch (InstallerException e) {
             Slog.w(TAG, "Failed to merge profiles", e);
         }
@@ -629,6 +642,9 @@
         if ((flags & DEXOPT_IDLE_BACKGROUND_JOB) == DEXOPT_IDLE_BACKGROUND_JOB) {
             flagsList.add("idle_background_job");
         }
+        if ((flags & DEXOPT_DISABLE_HIDDEN_API_CHECKS) == DEXOPT_DISABLE_HIDDEN_API_CHECKS) {
+            flagsList.add("disable_hidden_api_checks");
+        }
 
         return String.join(",", flagsList);
     }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 78200f2..837a118 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -52,11 +52,9 @@
 import static android.content.pm.PackageManager.INSTALL_FAILED_MISSING_SHARED_LIBRARY;
 import static android.content.pm.PackageManager.INSTALL_FAILED_PACKAGE_CHANGED;
 import static android.content.pm.PackageManager.INSTALL_FAILED_REPLACE_COULDNT_DELETE;
-import static android.content.pm.PackageManager.INSTALL_FAILED_SANDBOX_VERSION_DOWNGRADE;
 import static android.content.pm.PackageManager.INSTALL_FAILED_SHARED_USER_INCOMPATIBLE;
 import static android.content.pm.PackageManager.INSTALL_FAILED_TEST_ONLY;
 import static android.content.pm.PackageManager.INSTALL_FAILED_UPDATE_INCOMPATIBLE;
-import static android.content.pm.PackageManager.INSTALL_FAILED_USER_RESTRICTED;
 import static android.content.pm.PackageManager.INSTALL_FAILED_VERSION_DOWNGRADE;
 import static android.content.pm.PackageManager.INSTALL_INTERNAL;
 import static android.content.pm.PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
@@ -195,6 +193,7 @@
 import android.content.pm.VerifierDeviceIdentity;
 import android.content.pm.VerifierInfo;
 import android.content.pm.VersionedPackage;
+import android.content.pm.dex.ArtManager;
 import android.content.pm.dex.DexMetadataHelper;
 import android.content.pm.dex.IArtManager;
 import android.content.res.Resources;
@@ -314,6 +313,7 @@
 import com.android.server.pm.permission.PermissionManagerInternal.PermissionCallback;
 import com.android.server.pm.permission.PermissionsState;
 import com.android.server.pm.permission.PermissionsState.PermissionState;
+import com.android.server.security.VerityUtils;
 import com.android.server.storage.DeviceStorageMonitorInternal;
 
 import dalvik.system.CloseGuard;
@@ -338,6 +338,7 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.nio.charset.StandardCharsets;
+import java.security.DigestException;
 import java.security.DigestInputStream;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
@@ -450,7 +451,6 @@
     static final int SCAN_NEW_INSTALL = 1<<2;
     static final int SCAN_UPDATE_TIME = 1<<3;
     static final int SCAN_BOOTING = 1<<4;
-    static final int SCAN_TRUSTED_OVERLAY = 1<<5;
     static final int SCAN_DELETE_DATA_ON_FAILURES = 1<<6;
     static final int SCAN_REQUIRE_KNOWN = 1<<7;
     static final int SCAN_MOVE = 1<<8;
@@ -473,7 +473,6 @@
             SCAN_NEW_INSTALL,
             SCAN_UPDATE_TIME,
             SCAN_BOOTING,
-            SCAN_TRUSTED_OVERLAY,
             SCAN_DELETE_DATA_ON_FAILURES,
             SCAN_REQUIRE_KNOWN,
             SCAN_MOVE,
@@ -776,7 +775,7 @@
                 Collection<PackageParser.Package> allPackages, String targetPackageName) {
             List<PackageParser.Package> overlayPackages = null;
             for (PackageParser.Package p : allPackages) {
-                if (targetPackageName.equals(p.mOverlayTarget) && p.mIsStaticOverlay) {
+                if (targetPackageName.equals(p.mOverlayTarget) && p.mOverlayIsStatic) {
                     if (overlayPackages == null) {
                         overlayPackages = new ArrayList<PackageParser.Package>();
                     }
@@ -860,7 +859,7 @@
         void findStaticOverlayPackages() {
             synchronized (mPackages) {
                 for (PackageParser.Package p : mPackages.values()) {
-                    if (p.mIsStaticOverlay) {
+                    if (p.mOverlayIsStatic) {
                         if (mOverlayPackages == null) {
                             mOverlayPackages = new ArrayList<PackageParser.Package>();
                         }
@@ -2430,6 +2429,7 @@
                 installer, mInstallLock);
         mDexManager = new DexManager(this, mPackageDexOptimizer, installer, mInstallLock,
                 dexManagerListener);
+        mArtManagerService = new ArtManagerService(this, installer, mInstallLock);
         mMoveCallbacks = new MoveCallbacks(FgThread.get().getLooper());
 
         mOnPermissionChangeListeners = new OnPermissionChangeListeners(
@@ -2560,7 +2560,7 @@
                     | PackageParser.PARSE_IS_SYSTEM_DIR,
                     scanFlags
                     | SCAN_AS_SYSTEM
-                    | SCAN_TRUSTED_OVERLAY,
+                    | SCAN_AS_VENDOR,
                     0);
 
             mParallelPackageParserCallback.findStaticOverlayPackages();
@@ -3086,7 +3086,6 @@
             }
 
             mInstallerService = new PackageInstallerService(context, this);
-            mArtManagerService = new ArtManagerService(this, mInstaller, mInstallLock);
             final Pair<ComponentName, String> instantAppResolverComponent =
                     getInstantAppResolverLPr();
             if (instantAppResolverComponent != null) {
@@ -8294,11 +8293,13 @@
     }
 
     private void collectCertificatesLI(PackageSetting ps, PackageParser.Package pkg,
-            final @ParseFlags int parseFlags, boolean forceCollect) throws PackageManagerException {
+            boolean forceCollect) throws PackageManagerException {
         // When upgrading from pre-N MR1, verify the package time stamp using the package
         // directory and not the APK file.
         final long lastModifiedTime = mIsPreNMR1Upgrade
                 ? new File(pkg.codePath).lastModified() : getLastModifiedTime(pkg);
+        // Note that currently skipVerify skips verification on both base and splits for simplicity.
+        final boolean skipVerify = forceCollect && canSkipFullPackageVerification(pkg);
         if (ps != null && !forceCollect
                 && ps.codePathString.equals(pkg.codePath)
                 && ps.timeStamp == lastModifiedTime
@@ -8324,7 +8325,7 @@
 
         try {
             Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "collectCertificates");
-            PackageParser.collectCertificates(pkg, parseFlags);
+            PackageParser.collectCertificates(pkg, skipVerify);
         } catch (PackageParserException e) {
             throw PackageManagerException.from(e);
         } finally {
@@ -8418,6 +8419,48 @@
         return scannedPkg;
     }
 
+    /**
+     * Returns if full apk verification can be skipped for the whole package, including the splits.
+     */
+    private boolean canSkipFullPackageVerification(PackageParser.Package pkg) {
+        if (!canSkipFullApkVerification(pkg.baseCodePath)) {
+            return false;
+        }
+        // TODO: Allow base and splits to be verified individually.
+        if (!ArrayUtils.isEmpty(pkg.splitCodePaths)) {
+            for (int i = 0; i < pkg.splitCodePaths.length; i++) {
+                if (!canSkipFullApkVerification(pkg.splitCodePaths[i])) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    /**
+     * Returns if full apk verification can be skipped, depending on current FSVerity setup and
+     * whether the apk contains signed root hash.  Note that the signer's certificate still needs to
+     * match one in a trusted source, and should be done separately.
+     */
+    private boolean canSkipFullApkVerification(String apkPath) {
+        byte[] rootHashObserved = null;
+        try {
+            rootHashObserved = VerityUtils.generateFsverityRootHash(apkPath);
+            if (rootHashObserved == null) {
+                return false;  // APK does not contain Merkle tree root hash.
+            }
+            synchronized (mInstallLock) {
+                // Returns whether the observed root hash matches what kernel has.
+                mInstaller.assertFsverityRootHashMatches(apkPath, rootHashObserved);
+                return true;
+            }
+        } catch (InstallerException | IOException | DigestException |
+                NoSuchAlgorithmException e) {
+            Slog.w(TAG, "Error in fsverity check. Fallback to full apk verification.", e);
+        }
+        return false;
+    }
+
     // Temporary to catch potential issues with refactoring
     private static boolean REFACTOR_DEBUG = true;
     /**
@@ -8629,10 +8672,11 @@
         }
 
         // Verify certificates against what was last scanned. If it is an updated priv app, we will
-        // force the verification. Full apk verification will happen unless apk verity is set up for
-        // the file. In that case, only small part of the apk is verified upfront.
-        collectCertificatesLI(pkgSetting, pkg, parseFlags,
-                PackageManagerServiceUtils.isApkVerificationForced(disabledPkgSetting));
+        // force re-collecting certificate. Full apk verification will happen unless apk verity is
+        // set up for the file. In that case, only small part of the apk is verified upfront.
+        final boolean forceCollect = PackageManagerServiceUtils.isApkVerificationForced(
+                disabledPkgSetting);
+        collectCertificatesLI(pkgSetting, pkg, forceCollect);
 
         boolean shouldHideSystemApp = false;
         // A new application appeared on /system, but, we already have a copy of
@@ -8873,7 +8917,8 @@
                         // PackageDexOptimizer to prevent this happening on first boot. The issue
                         // is that we don't have a good way to say "do this only once".
                         if (!mInstaller.copySystemProfile(profileFile.getAbsolutePath(),
-                                pkg.applicationInfo.uid, pkg.packageName)) {
+                                pkg.applicationInfo.uid, pkg.packageName,
+                                ArtManager.getProfileName(null))) {
                             Log.e(TAG, "Installer failed to copy system profile!");
                         } else {
                             // Disabled as this causes speed-profile compilation during first boot
@@ -8908,7 +8953,8 @@
                                 // issue is that we don't have a good way to say "do this only
                                 // once".
                                 if (!mInstaller.copySystemProfile(profileFile.getAbsolutePath(),
-                                        pkg.applicationInfo.uid, pkg.packageName)) {
+                                        pkg.applicationInfo.uid, pkg.packageName,
+                                        ArtManager.getProfileName(null))) {
                                     Log.e(TAG, "Failed to copy system profile for stub package!");
                                 } else {
                                     useProfileForDexopt = true;
@@ -9333,14 +9379,7 @@
 
         synchronized (mInstallLock) {
             Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "dump profiles");
-            final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
-            try {
-                List<String> allCodePaths = pkg.getAllCodePathsExcludingResourceOnly();
-                String codePaths = TextUtils.join(";", allCodePaths);
-                mInstaller.dumpProfiles(sharedGid, packageName, codePaths);
-            } catch (InstallerException e) {
-                Slog.w(TAG, "Failed to dump profiles", e);
-            }
+            mArtManagerService.dumpProfiles(pkg);
             Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
         }
     }
@@ -9416,6 +9455,8 @@
         for (int i = 0; i < childCount; i++) {
             clearAppDataLeafLIF(pkg.childPackages.get(i), userId, flags);
         }
+
+        clearAppProfilesLIF(pkg, UserHandle.USER_ALL);
     }
 
     private void clearAppDataLeafLIF(PackageParser.Package pkg, int userId, int flags) {
@@ -9488,18 +9529,10 @@
             Slog.wtf(TAG, "Package was null!", new Throwable());
             return;
         }
-        clearAppProfilesLeafLIF(pkg);
+        mArtManagerService.clearAppProfiles(pkg);
         final int childCount = (pkg.childPackages != null) ? pkg.childPackages.size() : 0;
         for (int i = 0; i < childCount; i++) {
-            clearAppProfilesLeafLIF(pkg.childPackages.get(i));
-        }
-    }
-
-    private void clearAppProfilesLeafLIF(PackageParser.Package pkg) {
-        try {
-            mInstaller.clearAppProfiles(pkg.packageName);
-        } catch (InstallerException e) {
-            Slog.w(TAG, String.valueOf(e));
+            mArtManagerService.clearAppProfiles(pkg.childPackages.get(i));
         }
     }
 
@@ -10616,7 +10649,6 @@
                 }
             }
         }
-        pkg.mTrustedOverlay = (scanFlags & SCAN_TRUSTED_OVERLAY) != 0;
 
         if ((scanFlags & SCAN_AS_PRIVILEGED) != 0) {
             pkg.applicationInfo.privateFlags |= ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
@@ -10638,6 +10670,14 @@
         }
     }
 
+    private static @NonNull <T> T assertNotNull(@Nullable T object, String message)
+            throws PackageManagerException {
+        if (object == null) {
+            throw new PackageManagerException(INSTALL_FAILED_INTERNAL_ERROR, message);
+        }
+        return object;
+    }
+
     /**
      * Asserts the parsed package is valid according to the given policy. If the
      * package is invalid, for whatever reason, throws {@link PackageManagerException}.
@@ -10911,6 +10951,50 @@
                     }
                 }
             }
+
+            // Apply policies specific for runtime resource overlays (RROs).
+            if (pkg.mOverlayTarget != null) {
+                // System overlays have some restrictions on their use of the 'static' state.
+                if ((scanFlags & SCAN_AS_SYSTEM) != 0) {
+                    // We are scanning a system overlay. This can be the first scan of the
+                    // system/vendor/oem partition, or an update to the system overlay.
+                    if ((parseFlags & PackageParser.PARSE_IS_SYSTEM_DIR) == 0) {
+                        // This must be an update to a system overlay.
+                        final PackageSetting previousPkg = assertNotNull(
+                                mSettings.getPackageLPr(pkg.packageName),
+                                "previous package state not present");
+
+                        // Static overlays cannot be updated.
+                        if (previousPkg.pkg.mOverlayIsStatic) {
+                            throw new PackageManagerException("Overlay " + pkg.packageName +
+                                    " is static and cannot be upgraded.");
+                        // Non-static overlays cannot be converted to static overlays.
+                        } else if (pkg.mOverlayIsStatic) {
+                            throw new PackageManagerException("Overlay " + pkg.packageName +
+                                    " cannot be upgraded into a static overlay.");
+                        }
+                    }
+                } else {
+                    // The overlay is a non-system overlay. Non-system overlays cannot be static.
+                    if (pkg.mOverlayIsStatic) {
+                        throw new PackageManagerException("Overlay " + pkg.packageName +
+                                " is static but not pre-installed.");
+                    }
+
+                    // The only case where we allow installation of a non-system overlay is when
+                    // its signature is signed with the platform certificate.
+                    PackageSetting platformPkgSetting = mSettings.getPackageLPr("android");
+                    if ((platformPkgSetting.signatures.mSigningDetails
+                            != PackageParser.SigningDetails.UNKNOWN)
+                            && (compareSignatures(
+                                    platformPkgSetting.signatures.mSigningDetails.signatures,
+                                    pkg.mSigningDetails.signatures)
+                                            != PackageManager.SIGNATURE_MATCH)) {
+                        throw new PackageManagerException("Overlay " + pkg.packageName +
+                                " must be signed with the platform certificate.");
+                    }
+                }
+            }
         }
     }
 
@@ -16108,7 +16192,6 @@
 
             clearAppDataLIF(pkg, UserHandle.USER_ALL, StorageManager.FLAG_STORAGE_DE
                     | StorageManager.FLAG_STORAGE_CE | Installer.FLAG_CLEAR_CODE_CACHE_ONLY);
-            clearAppProfilesLIF(deletedPackage, UserHandle.USER_ALL);
 
             try {
                 final PackageParser.Package newPackage = scanPackageTracedLI(pkg, parseFlags,
@@ -16247,7 +16330,6 @@
         // Successfully disabled the old package. Now proceed with re-installation
         clearAppDataLIF(pkg, UserHandle.USER_ALL, StorageManager.FLAG_STORAGE_DE
                 | StorageManager.FLAG_STORAGE_CE | Installer.FLAG_CLEAR_CODE_CACHE_ONLY);
-        clearAppProfilesLIF(deletedPackage, UserHandle.USER_ALL);
 
         res.setReturnCode(PackageManager.INSTALL_SUCCEEDED);
         pkg.setApplicationInfoFlags(ApplicationInfo.FLAG_UPDATED_SYSTEM_APP,
@@ -16707,7 +16789,7 @@
             if (args.signingDetails != PackageParser.SigningDetails.UNKNOWN) {
                 pkg.setSigningDetails(args.signingDetails);
             } else {
-                PackageParser.collectCertificates(pkg, parseFlags);
+                PackageParser.collectCertificates(pkg, false /* skipVerify */);
             }
         } catch (PackageParserException e) {
             res.setError("Failed collect during installPackageLI", e);
@@ -16987,6 +17069,43 @@
             return;
         }
 
+        if (PackageManagerServiceUtils.isApkVerityEnabled()) {
+            String apkPath = null;
+            synchronized (mPackages) {
+                // Note that if the attacker managed to skip verify setup, for example by tampering
+                // with the package settings, upon reboot we will do full apk verification when
+                // verity is not detected.
+                final PackageSetting ps = mSettings.mPackages.get(pkgName);
+                if (ps != null && ps.isPrivileged()) {
+                    apkPath = pkg.baseCodePath;
+                }
+            }
+
+            if (apkPath != null) {
+                final VerityUtils.SetupResult result =
+                        VerityUtils.generateApkVeritySetupData(apkPath);
+                if (result.isOk()) {
+                    if (Build.IS_DEBUGGABLE) Slog.i(TAG, "Enabling apk verity to " + apkPath);
+                    FileDescriptor fd = result.getUnownedFileDescriptor();
+                    try {
+                        mInstaller.installApkVerity(apkPath, fd);
+                    } catch (InstallerException e) {
+                        res.setError(INSTALL_FAILED_INTERNAL_ERROR,
+                                "Failed to set up verity: " + e);
+                        return;
+                    } finally {
+                        IoUtils.closeQuietly(fd);
+                    }
+                } else if (result.isFailed()) {
+                    res.setError(INSTALL_FAILED_INTERNAL_ERROR, "Failed to generate verity");
+                    return;
+                } else {
+                    // Do nothing if verity is skipped. Will fall back to full apk verification on
+                    // reboot.
+                }
+            }
+        }
+
         if (!instantApp) {
             startIntentFilterVerifications(args.user.getIdentifier(), replace, pkg);
         } else {
@@ -17019,6 +17138,11 @@
             }
         }
 
+        // Prepare the application profiles for the new code paths.
+        // This needs to be done before invoking dexopt so that any install-time profile
+        // can be used for optimizations.
+        mArtManagerService.prepareAppProfiles(pkg, resolveUserIds(args.user.getIdentifier()));
+
         // Check whether we need to dexopt the app.
         //
         // NOTE: it is IMPORTANT to call dexopt:
@@ -20278,7 +20402,6 @@
                     }
                     clearAppDataLIF(pkg, UserHandle.USER_ALL, FLAG_STORAGE_DE
                             | FLAG_STORAGE_CE | Installer.FLAG_CLEAR_CODE_CACHE_ONLY);
-                    clearAppProfilesLIF(pkg, UserHandle.USER_ALL);
                     mDexManager.notifyPackageUpdated(pkg.packageName,
                             pkg.baseCodePath, pkg.splitCodePaths);
                 }
@@ -22033,6 +22156,8 @@
                 Slog.e(TAG, "Failed to create app data for " + packageName + ": " + e);
             }
         }
+        // Prepare the application profiles.
+        mArtManagerService.prepareAppProfiles(pkg, userId);
 
         if ((flags & StorageManager.FLAG_STORAGE_CE) != 0 && ceDataInode != -1) {
             // TODO: mark this structure as dirty so we persist it!
diff --git a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
index 021c4b8..76c199b 100644
--- a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
+++ b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
@@ -562,8 +562,7 @@
     private static boolean matchSignatureInSystem(PackageSetting pkgSetting,
             PackageSetting disabledPkgSetting) {
         try {
-            PackageParser.collectCertificates(disabledPkgSetting.pkg,
-                    PackageParser.PARSE_IS_SYSTEM_DIR);
+            PackageParser.collectCertificates(disabledPkgSetting.pkg, true /* skipVerify */);
             if (compareSignatures(pkgSetting.signatures.mSigningDetails.signatures,
                         disabledPkgSetting.signatures.mSigningDetails.signatures)
                     != PackageManager.SIGNATURE_MATCH) {
@@ -579,7 +578,6 @@
         return true;
     }
 
-
     /**
      * Checks the signing certificates to see if the provided certificate is a member.  Invalid for
      * {@code SigningDetails} with multiple signing certificates.
@@ -642,10 +640,14 @@
         return false;
     }
 
+    /** Returns true if APK Verity is enabled. */
+    static boolean isApkVerityEnabled() {
+        return SystemProperties.getInt("ro.apk_verity.mode", 0) != 0;
+    }
+
     /** Returns true to force apk verification if the updated package (in /data) is a priv app. */
     static boolean isApkVerificationForced(@Nullable PackageSetting disabledPs) {
-        return disabledPs != null && disabledPs.isPrivileged() &&
-                SystemProperties.getInt("ro.apk_verity.mode", 0) != 0;
+        return disabledPs != null && disabledPs.isPrivileged() && isApkVerityEnabled();
     }
 
     /**
diff --git a/services/core/java/com/android/server/pm/UserRestrictionsUtils.java b/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
index cc07d82..a42fcbd 100644
--- a/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
+++ b/services/core/java/com/android/server/pm/UserRestrictionsUtils.java
@@ -561,6 +561,25 @@
                         }
                     }
                     break;
+                case UserManager.DISALLOW_AMBIENT_DISPLAY:
+                    if (newValue) {
+                        android.provider.Settings.Secure.putString(
+                                context.getContentResolver(),
+                                Settings.Secure.DOZE_ENABLED, "0");
+                        android.provider.Settings.Secure.putString(
+                                context.getContentResolver(),
+                                Settings.Secure.DOZE_ALWAYS_ON, "0");
+                        android.provider.Settings.Secure.putString(
+                                context.getContentResolver(),
+                                Settings.Secure.DOZE_PULSE_ON_PICK_UP, "0");
+                        android.provider.Settings.Secure.putString(
+                                context.getContentResolver(),
+                                Settings.Secure.DOZE_PULSE_ON_LONG_PRESS, "0");
+                        android.provider.Settings.Secure.putString(
+                                context.getContentResolver(),
+                                Settings.Secure.DOZE_PULSE_ON_DOUBLE_TAP, "0");
+                    }
+                    break;
             }
         } finally {
             Binder.restoreCallingIdentity(id);
diff --git a/services/core/java/com/android/server/pm/dex/ArtManagerService.java b/services/core/java/com/android/server/pm/dex/ArtManagerService.java
index 2dbb34d..e290272 100644
--- a/services/core/java/com/android/server/pm/dex/ArtManagerService.java
+++ b/services/core/java/com/android/server/pm/dex/ArtManagerService.java
@@ -17,11 +17,16 @@
 package com.android.server.pm.dex;
 
 import android.Manifest;
+import android.annotation.UserIdInt;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.PackageParser;
 import android.content.pm.dex.ArtManager;
+import android.content.pm.dex.ArtManager.ProfileType;
+import android.content.pm.dex.DexMetadataHelper;
 import android.os.Binder;
-import android.os.Environment;
+import android.os.Build;
 import android.os.Handler;
 import android.os.ParcelFileDescriptor;
 import android.os.RemoteException;
@@ -29,15 +34,21 @@
 import android.content.pm.dex.ISnapshotRuntimeProfileCallback;
 import android.os.SystemProperties;
 import android.os.UserHandle;
+import android.system.Os;
+import android.util.ArrayMap;
 import android.util.Slog;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.os.BackgroundThread;
+import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.Preconditions;
 import com.android.server.pm.Installer;
 import com.android.server.pm.Installer.InstallerException;
 import java.io.File;
 import java.io.FileNotFoundException;
+import libcore.io.IoUtils;
+import libcore.util.NonNull;
+import libcore.util.Nullable;
 
 /**
  * A system service that provides access to runtime and compiler artifacts.
@@ -57,6 +68,12 @@
     private static boolean DEBUG = false;
     private static boolean DEBUG_IGNORE_PERMISSIONS = false;
 
+    // Package name used to create the profile directory layout when
+    // taking a snapshot of the boot image profile.
+    private static final String BOOT_IMAGE_ANDROID_PACKAGE = "android";
+    // Profile name used for the boot image profile.
+    private static final String BOOT_IMAGE_PROFILE_NAME = "android.prof";
+
     private final IPackageManager mPackageManager;
     private final Object mInstallLock;
     @GuardedBy("mInstallLock")
@@ -72,20 +89,36 @@
     }
 
     @Override
-    public void snapshotRuntimeProfile(String packageName, String codePath,
-            ISnapshotRuntimeProfileCallback callback) {
+    public void snapshotRuntimeProfile(@ProfileType int profileType, @Nullable String packageName,
+            @Nullable String codePath, @NonNull ISnapshotRuntimeProfileCallback callback) {
         // Sanity checks on the arguments.
-        Preconditions.checkStringNotEmpty(packageName);
-        Preconditions.checkStringNotEmpty(codePath);
         Preconditions.checkNotNull(callback);
 
-        // Verify that the caller has the right permissions.
-        checkReadRuntimeProfilePermission();
+        boolean bootImageProfile = profileType == ArtManager.PROFILE_BOOT_IMAGE;
+        if (!bootImageProfile) {
+            Preconditions.checkStringNotEmpty(codePath);
+            Preconditions.checkStringNotEmpty(packageName);
+        }
+
+        // Verify that the caller has the right permissions and that the runtime profiling is
+        // enabled. The call to isRuntimePermissions will checkReadRuntimeProfilePermission.
+        if (!isRuntimeProfilingEnabled(profileType)) {
+            throw new IllegalStateException("Runtime profiling is not enabled for " + profileType);
+        }
 
         if (DEBUG) {
             Slog.d(TAG, "Requested snapshot for " + packageName + ":" + codePath);
         }
 
+        if (bootImageProfile) {
+            snapshotBootImageProfile(callback);
+        } else {
+            snapshotAppProfile(packageName, codePath, callback);
+        }
+    }
+
+    private void snapshotAppProfile(String packageName, String codePath,
+            ISnapshotRuntimeProfileCallback callback) {
         PackageInfo info = null;
         try {
             // Note that we use the default user 0 to retrieve the package info.
@@ -105,11 +138,13 @@
         }
 
         boolean pathFound = info.applicationInfo.getBaseCodePath().equals(codePath);
+        String splitName = null;
         String[] splitCodePaths = info.applicationInfo.getSplitCodePaths();
         if (!pathFound && (splitCodePaths != null)) {
-            for (String path : splitCodePaths) {
-                if (path.equals(codePath)) {
+            for (int i = splitCodePaths.length - 1; i >= 0; i--) {
+                if (splitCodePaths[i].equals(codePath)) {
                     pathFound = true;
+                    splitName = info.applicationInfo.splitNames[i];
                     break;
                 }
             }
@@ -120,18 +155,25 @@
         }
 
         // All good, create the profile snapshot.
-        createProfileSnapshot(packageName, codePath, callback, info);
+        int appId = UserHandle.getAppId(info.applicationInfo.uid);
+        if (appId < 0) {
+            postError(callback, packageName, ArtManager.SNAPSHOT_FAILED_INTERNAL_ERROR);
+            Slog.wtf(TAG, "AppId is -1 for package: " + packageName);
+            return;
+        }
+
+        createProfileSnapshot(packageName, ArtManager.getProfileName(splitName), codePath,
+                appId, callback);
         // Destroy the snapshot, we no longer need it.
-        destroyProfileSnapshot(packageName, codePath);
+        destroyProfileSnapshot(packageName, ArtManager.getProfileName(splitName));
     }
 
-    private void createProfileSnapshot(String packageName, String codePath,
-            ISnapshotRuntimeProfileCallback callback, PackageInfo info) {
+    private void createProfileSnapshot(String packageName, String profileName, String classpath,
+            int appId, ISnapshotRuntimeProfileCallback callback) {
         // Ask the installer to snapshot the profile.
         synchronized (mInstallLock) {
             try {
-                if (!mInstaller.createProfileSnapshot(UserHandle.getAppId(info.applicationInfo.uid),
-                        packageName, codePath)) {
+                if (!mInstaller.createProfileSnapshot(appId, packageName, profileName, classpath)) {
                     postError(callback, packageName, ArtManager.SNAPSHOT_FAILED_INTERNAL_ERROR);
                     return;
                 }
@@ -142,38 +184,64 @@
         }
 
         // Open the snapshot and invoke the callback.
-        File snapshotProfile = Environment.getProfileSnapshotPath(packageName, codePath);
-        ParcelFileDescriptor fd;
+        File snapshotProfile = ArtManager.getProfileSnapshotFileForName(packageName, profileName);
+
+        ParcelFileDescriptor fd = null;
         try {
             fd = ParcelFileDescriptor.open(snapshotProfile, ParcelFileDescriptor.MODE_READ_ONLY);
             postSuccess(packageName, fd, callback);
         } catch (FileNotFoundException e) {
-            Slog.w(TAG, "Could not open snapshot profile for " + packageName + ":" + codePath, e);
+            Slog.w(TAG, "Could not open snapshot profile for " + packageName + ":"
+                    + snapshotProfile, e);
             postError(callback, packageName, ArtManager.SNAPSHOT_FAILED_INTERNAL_ERROR);
+        } finally {
+            IoUtils.closeQuietly(fd);
         }
     }
 
-    private void destroyProfileSnapshot(String packageName, String codePath) {
+    private void destroyProfileSnapshot(String packageName, String profileName) {
         if (DEBUG) {
-            Slog.d(TAG, "Destroying profile snapshot for" + packageName + ":" + codePath);
+            Slog.d(TAG, "Destroying profile snapshot for" + packageName + ":" + profileName);
         }
 
         synchronized (mInstallLock) {
             try {
-                mInstaller.destroyProfileSnapshot(packageName, codePath);
+                mInstaller.destroyProfileSnapshot(packageName, profileName);
             } catch (InstallerException e) {
                 Slog.e(TAG, "Failed to destroy profile snapshot for " +
-                    packageName + ":" + codePath, e);
+                    packageName + ":" + profileName, e);
             }
         }
     }
 
     @Override
-    public boolean isRuntimeProfilingEnabled() {
+    public boolean isRuntimeProfilingEnabled(@ProfileType int profileType) {
         // Verify that the caller has the right permissions.
         checkReadRuntimeProfilePermission();
 
-        return SystemProperties.getBoolean("dalvik.vm.usejitprofiles", false);
+        switch (profileType) {
+            case ArtManager.PROFILE_APPS :
+                return SystemProperties.getBoolean("dalvik.vm.usejitprofiles", false);
+            case ArtManager.PROFILE_BOOT_IMAGE:
+                return (Build.IS_USERDEBUG || Build.IS_ENG) &&
+                        SystemProperties.getBoolean("dalvik.vm.usejitprofiles", false) &&
+                        SystemProperties.getBoolean("dalvik.vm.profilebootimage", false);
+            default:
+                throw new IllegalArgumentException("Invalid profile type:" + profileType);
+        }
+    }
+
+    private void snapshotBootImageProfile(ISnapshotRuntimeProfileCallback callback) {
+        // Combine the profiles for boot classpath and system server classpath.
+        // This avoids having yet another type of profiles and simplifies the processing.
+        String classpath = String.join(":", Os.getenv("BOOTCLASSPATH"),
+                Os.getenv("SYSTEMSERVERCLASSPATH"));
+
+        // Create the snapshot.
+        createProfileSnapshot(BOOT_IMAGE_ANDROID_PACKAGE, BOOT_IMAGE_PROFILE_NAME, classpath,
+                /*appId*/ -1, callback);
+        // Destroy the snapshot, we no longer need it.
+        destroyProfileSnapshot(BOOT_IMAGE_ANDROID_PACKAGE, BOOT_IMAGE_PROFILE_NAME);
     }
 
     /**
@@ -230,4 +298,103 @@
             // Should not happen.
         }
     }
+
+    /**
+     * Prepare the application profiles.
+     * For all code paths:
+     *   - create the current primary profile to save time at app startup time.
+     *   - copy the profiles from the associated dex metadata file to the reference profile.
+     */
+    public void prepareAppProfiles(PackageParser.Package pkg, @UserIdInt int user) {
+        final int appId = UserHandle.getAppId(pkg.applicationInfo.uid);
+        if (user < 0) {
+            Slog.wtf(TAG, "Invalid user id: " + user);
+            return;
+        }
+        if (appId < 0) {
+            Slog.wtf(TAG, "Invalid app id: " + appId);
+            return;
+        }
+        try {
+            ArrayMap<String, String> codePathsProfileNames = getPackageProfileNames(pkg);
+            for (int i = codePathsProfileNames.size() - 1; i >= 0; i--) {
+                String codePath = codePathsProfileNames.keyAt(i);
+                String profileName = codePathsProfileNames.valueAt(i);
+                File dexMetadata = DexMetadataHelper.findDexMetadataForFile(new File(codePath));
+                String dexMetadataPath = dexMetadata == null ? null : dexMetadata.getAbsolutePath();
+                synchronized (mInstaller) {
+                    boolean result = mInstaller.prepareAppProfile(pkg.packageName, user, appId,
+                            profileName, codePath, dexMetadataPath);
+                    if (!result) {
+                        Slog.e(TAG, "Failed to prepare profile for " +
+                                pkg.packageName + ":" + codePath);
+                    }
+                }
+            }
+        } catch (InstallerException e) {
+            Slog.e(TAG, "Failed to prepare profile for " + pkg.packageName, e);
+        }
+    }
+
+    /**
+     * Prepares the app profiles for a set of users. {@see ArtManagerService#prepareAppProfiles}.
+     */
+    public void prepareAppProfiles(PackageParser.Package pkg, int[] user) {
+        for (int i = 0; i < user.length; i++) {
+            prepareAppProfiles(pkg, user[i]);
+        }
+    }
+
+    /**
+     * Clear the profiles for the given package.
+     */
+    public void clearAppProfiles(PackageParser.Package pkg) {
+        try {
+            ArrayMap<String, String> packageProfileNames = getPackageProfileNames(pkg);
+            for (int i = packageProfileNames.size() - 1; i >= 0; i--) {
+                String profileName = packageProfileNames.valueAt(i);
+                mInstaller.clearAppProfiles(pkg.packageName, profileName);
+            }
+        } catch (InstallerException e) {
+            Slog.w(TAG, String.valueOf(e));
+        }
+    }
+
+    /**
+     * Dumps the profiles for the given package.
+     */
+    public void dumpProfiles(PackageParser.Package pkg) {
+        final int sharedGid = UserHandle.getSharedAppGid(pkg.applicationInfo.uid);
+        try {
+            ArrayMap<String, String> packageProfileNames = getPackageProfileNames(pkg);
+            for (int i = packageProfileNames.size() - 1; i >= 0; i--) {
+                String codePath = packageProfileNames.keyAt(i);
+                String profileName = packageProfileNames.valueAt(i);
+                synchronized (mInstallLock) {
+                    mInstaller.dumpProfiles(sharedGid, pkg.packageName, profileName, codePath);
+                }
+            }
+        } catch (InstallerException e) {
+            Slog.w(TAG, "Failed to dump profiles", e);
+        }
+    }
+
+    /**
+     * Build the profiles names for all the package code paths (excluding resource only paths).
+     * Return the map [code path -> profile name].
+     */
+    private ArrayMap<String, String> getPackageProfileNames(PackageParser.Package pkg) {
+        ArrayMap<String, String> result = new ArrayMap<>();
+        if ((pkg.applicationInfo.flags & ApplicationInfo.FLAG_HAS_CODE) != 0) {
+            result.put(pkg.baseCodePath, ArtManager.getProfileName(null));
+        }
+        if (!ArrayUtils.isEmpty(pkg.splitCodePaths)) {
+            for (int i = 0; i < pkg.splitCodePaths.length; i++) {
+                if ((pkg.splitFlags[i] & ApplicationInfo.FLAG_HAS_CODE) != 0) {
+                    result.put(pkg.splitCodePaths[i], ArtManager.getProfileName(pkg.splitNames[i]));
+                }
+            }
+        }
+        return result;
+    }
 }
diff --git a/services/core/java/com/android/server/power/PowerManagerService.java b/services/core/java/com/android/server/power/PowerManagerService.java
index d32e27a..db83158 100644
--- a/services/core/java/com/android/server/power/PowerManagerService.java
+++ b/services/core/java/com/android/server/power/PowerManagerService.java
@@ -70,6 +70,7 @@
 import android.service.vr.IVrStateCallbacks;
 import android.util.EventLog;
 import android.util.KeyValueListParser;
+import android.util.MathUtils;
 import android.util.PrintWriterPrinter;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -458,19 +459,11 @@
     private int mScreenBrightnessSettingMinimum;
     private int mScreenBrightnessSettingMaximum;
     private int mScreenBrightnessSettingDefault;
-    private int mScreenBrightnessForVrSettingDefault;
 
     // The screen brightness setting, from 0 to 255.
     // Use -1 if no value has been set.
     private int mScreenBrightnessSetting;
 
-    // The screen brightness setting, from 0 to 255, to be used while in VR Mode.
-    private int mScreenBrightnessForVrSetting;
-
-    // The screen auto-brightness adjustment setting, from -1 to 1.
-    // Use 0 if there is no adjustment.
-    private float mScreenAutoBrightnessAdjustmentSetting;
-
     // The screen brightness mode.
     // One of the Settings.System.SCREEN_BRIGHTNESS_MODE_* constants.
     private int mScreenBrightnessModeSetting;
@@ -493,17 +486,6 @@
     // Use -1 to disable.
     private long mUserActivityTimeoutOverrideFromWindowManager = -1;
 
-    // The screen brightness setting override from the settings application
-    // to temporarily adjust the brightness until next updated,
-    // Use -1 to disable.
-    private int mTemporaryScreenBrightnessSettingOverride = -1;
-
-    // The screen brightness adjustment setting override from the settings
-    // application to temporarily adjust the auto-brightness adjustment factor
-    // until next updated, in the range -1..1.
-    // Use NaN to disable.
-    private float mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN;
-
     // The screen state to use while dozing.
     private int mDozeScreenStateOverrideFromDreamManager = Display.STATE_UNKNOWN;
 
@@ -774,7 +756,6 @@
             mScreenBrightnessSettingMinimum = pm.getMinimumScreenBrightnessSetting();
             mScreenBrightnessSettingMaximum = pm.getMaximumScreenBrightnessSetting();
             mScreenBrightnessSettingDefault = pm.getDefaultScreenBrightnessSetting();
-            mScreenBrightnessForVrSettingDefault = pm.getDefaultScreenBrightnessForVrSetting();
 
             SensorManager sensorManager = new SystemSensorManager(mContext, mHandler.getLooper());
 
@@ -837,12 +818,6 @@
                 Settings.Global.STAY_ON_WHILE_PLUGGED_IN),
                 false, mSettingsObserver, UserHandle.USER_ALL);
         resolver.registerContentObserver(Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS),
-                false, mSettingsObserver, UserHandle.USER_ALL);
-        resolver.registerContentObserver(Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS_FOR_VR),
-                false, mSettingsObserver, UserHandle.USER_ALL);
-        resolver.registerContentObserver(Settings.System.getUriFor(
                 Settings.System.SCREEN_BRIGHTNESS_MODE),
                 false, mSettingsObserver, UserHandle.USER_ALL);
         resolver.registerContentObserver(Settings.System.getUriFor(
@@ -978,29 +953,6 @@
             SystemProperties.set(SYSTEM_PROPERTY_RETAIL_DEMO_ENABLED, retailDemoValue);
         }
 
-        final int oldScreenBrightnessSetting = getCurrentBrightnessSettingLocked();
-
-        mScreenBrightnessForVrSetting = Settings.System.getIntForUser(resolver,
-                Settings.System.SCREEN_BRIGHTNESS_FOR_VR, mScreenBrightnessForVrSettingDefault,
-                UserHandle.USER_CURRENT);
-
-        mScreenBrightnessSetting = Settings.System.getIntForUser(resolver,
-                Settings.System.SCREEN_BRIGHTNESS, mScreenBrightnessSettingDefault,
-                UserHandle.USER_CURRENT);
-
-        if (oldScreenBrightnessSetting != getCurrentBrightnessSettingLocked()) {
-            mTemporaryScreenBrightnessSettingOverride = -1;
-        }
-
-        final float oldScreenAutoBrightnessAdjustmentSetting =
-                mScreenAutoBrightnessAdjustmentSetting;
-        mScreenAutoBrightnessAdjustmentSetting = Settings.System.getFloatForUser(resolver,
-                Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ, 0.0f,
-                UserHandle.USER_CURRENT);
-        if (oldScreenAutoBrightnessAdjustmentSetting != mScreenAutoBrightnessAdjustmentSetting) {
-            mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = Float.NaN;
-        }
-
         mScreenBrightnessModeSetting = Settings.System.getIntForUser(resolver,
                 Settings.System.SCREEN_BRIGHTNESS_MODE,
                 Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL, UserHandle.USER_CURRENT);
@@ -1019,10 +971,6 @@
         mDirty |= DIRTY_SETTINGS;
     }
 
-    private int getCurrentBrightnessSettingLocked() {
-        return mIsVrModeEnabled ? mScreenBrightnessForVrSetting : mScreenBrightnessSetting;
-    }
-
     private void postAfterBootCompleted(Runnable r) {
         if (mBootCompleted) {
             BackgroundThread.getHandler().post(r);
@@ -2450,53 +2398,24 @@
             mDisplayPowerRequest.policy = getDesiredScreenPolicyLocked();
 
             // Determine appropriate screen brightness and auto-brightness adjustments.
-            boolean brightnessSetByUser = true;
-            int screenBrightness = mScreenBrightnessSettingDefault;
-            float screenAutoBrightnessAdjustment = 0.0f;
-            boolean autoBrightness = (mScreenBrightnessModeSetting ==
-                    Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC);
-            boolean brightnessIsTemporary = false;
+            final boolean autoBrightness;
+            final int screenBrightnessOverride;
             if (!mBootCompleted) {
                 // Keep the brightness steady during boot. This requires the
                 // bootloader brightness and the default brightness to be identical.
                 autoBrightness = false;
-                brightnessSetByUser = false;
-            } else if (mIsVrModeEnabled) {
-                screenBrightness = mScreenBrightnessForVrSetting;
-                autoBrightness = false;
+                screenBrightnessOverride = mScreenBrightnessSettingDefault;
             } else if (isValidBrightness(mScreenBrightnessOverrideFromWindowManager)) {
-                screenBrightness = mScreenBrightnessOverrideFromWindowManager;
                 autoBrightness = false;
-                brightnessSetByUser = false;
-            } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) {
-                screenBrightness = mTemporaryScreenBrightnessSettingOverride;
-                brightnessIsTemporary = true;
-            } else if (isValidBrightness(mScreenBrightnessSetting)) {
-                screenBrightness = mScreenBrightnessSetting;
+                screenBrightnessOverride = mScreenBrightnessOverrideFromWindowManager;
+            } else {
+                autoBrightness = (mScreenBrightnessModeSetting ==
+                        Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC);
+                screenBrightnessOverride = -1;
             }
-            if (autoBrightness) {
-                screenBrightness = mScreenBrightnessSettingDefault;
-                if (isValidAutoBrightnessAdjustment(
-                        mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) {
-                    screenAutoBrightnessAdjustment =
-                            mTemporaryScreenAutoBrightnessAdjustmentSettingOverride;
-                    brightnessIsTemporary = true;
-                } else if (isValidAutoBrightnessAdjustment(
-                        mScreenAutoBrightnessAdjustmentSetting)) {
-                    screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting;
-                }
-            }
-            screenBrightness = Math.max(Math.min(screenBrightness,
-                    mScreenBrightnessSettingMaximum), mScreenBrightnessSettingMinimum);
-            screenAutoBrightnessAdjustment = Math.max(Math.min(
-                    screenAutoBrightnessAdjustment, 1.0f), -1.0f);
 
             // Update display power request.
-            mDisplayPowerRequest.screenBrightness = screenBrightness;
-            mDisplayPowerRequest.screenAutoBrightnessAdjustment =
-                    screenAutoBrightnessAdjustment;
-            mDisplayPowerRequest.brightnessSetByUser = brightnessSetByUser;
-            mDisplayPowerRequest.brightnessIsTemporary = brightnessIsTemporary;
+            mDisplayPowerRequest.screenBrightnessOverride = screenBrightnessOverride;
             mDisplayPowerRequest.useAutoBrightness = autoBrightness;
             mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked();
             mDisplayPowerRequest.boostScreenBrightness = shouldBoostScreenBrightness();
@@ -2534,6 +2453,8 @@
                         + ", mWakeLockSummary=0x" + Integer.toHexString(mWakeLockSummary)
                         + ", mUserActivitySummary=0x" + Integer.toHexString(mUserActivitySummary)
                         + ", mBootCompleted=" + mBootCompleted
+                        + ", screenBrightnessOverride=" + screenBrightnessOverride
+                        + ", useAutoBrightness=" + autoBrightness
                         + ", mScreenBrightnessBoostInProgress=" + mScreenBrightnessBoostInProgress
                         + ", mIsVrModeEnabled= " + mIsVrModeEnabled
                         + ", sQuiescent=" + sQuiescent);
@@ -2573,11 +2494,6 @@
         return value >= 0 && value <= 255;
     }
 
-    private static boolean isValidAutoBrightnessAdjustment(float value) {
-        // Handles NaN by always returning false.
-        return value >= -1.0f && value <= 1.0f;
-    }
-
     @VisibleForTesting
     int getDesiredScreenPolicyLocked() {
         if (mWakefulness == WAKEFULNESS_ASLEEP || sQuiescent) {
@@ -3247,28 +3163,6 @@
         }
     }
 
-    private void setTemporaryScreenBrightnessSettingOverrideInternal(int brightness) {
-        synchronized (mLock) {
-            if (mTemporaryScreenBrightnessSettingOverride != brightness) {
-                mTemporaryScreenBrightnessSettingOverride = brightness;
-                mDirty |= DIRTY_SETTINGS;
-                updatePowerStateLocked();
-            }
-        }
-    }
-
-    private void setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(float adj) {
-        synchronized (mLock) {
-            // Note: This condition handles NaN because NaN is not equal to any other
-            // value, including itself.
-            if (mTemporaryScreenAutoBrightnessAdjustmentSettingOverride != adj) {
-                mTemporaryScreenAutoBrightnessAdjustmentSettingOverride = adj;
-                mDirty |= DIRTY_SETTINGS;
-                updatePowerStateLocked();
-            }
-        }
-    }
-
     private void setDozeOverrideFromDreamManagerInternal(
             int screenState, int screenBrightness) {
         synchronized (mLock) {
@@ -3478,8 +3372,6 @@
                     + isMaximumScreenOffTimeoutFromDeviceAdminEnforcedLocked() + ")");
             pw.println("  mStayOnWhilePluggedInSetting=" + mStayOnWhilePluggedInSetting);
             pw.println("  mScreenBrightnessSetting=" + mScreenBrightnessSetting);
-            pw.println("  mScreenAutoBrightnessAdjustmentSetting="
-                    + mScreenAutoBrightnessAdjustmentSetting);
             pw.println("  mScreenBrightnessModeSetting=" + mScreenBrightnessModeSetting);
             pw.println("  mScreenBrightnessOverrideFromWindowManager="
                     + mScreenBrightnessOverrideFromWindowManager);
@@ -3487,10 +3379,6 @@
                     + mUserActivityTimeoutOverrideFromWindowManager);
             pw.println("  mUserInactiveOverrideFromWindowManager="
                     + mUserInactiveOverrideFromWindowManager);
-            pw.println("  mTemporaryScreenBrightnessSettingOverride="
-                    + mTemporaryScreenBrightnessSettingOverride);
-            pw.println("  mTemporaryScreenAutoBrightnessAdjustmentSettingOverride="
-                    + mTemporaryScreenAutoBrightnessAdjustmentSettingOverride);
             pw.println("  mDozeScreenStateOverrideFromDreamManager="
                     + mDozeScreenStateOverrideFromDreamManager);
             pw.println("  mDozeScreenBrightnessOverrideFromDreamManager="
@@ -3498,9 +3386,6 @@
             pw.println("  mScreenBrightnessSettingMinimum=" + mScreenBrightnessSettingMinimum);
             pw.println("  mScreenBrightnessSettingMaximum=" + mScreenBrightnessSettingMaximum);
             pw.println("  mScreenBrightnessSettingDefault=" + mScreenBrightnessSettingDefault);
-            pw.println("  mScreenBrightnessForVrSettingDefault="
-                    + mScreenBrightnessForVrSettingDefault);
-            pw.println("  mScreenBrightnessForVrSetting=" + mScreenBrightnessForVrSetting);
             pw.println("  mDoubleTapWakeEnabled=" + mDoubleTapWakeEnabled);
             pw.println("  mIsVrModeEnabled=" + mIsVrModeEnabled);
             pw.println("  mForegroundProfile=" + mForegroundProfile);
@@ -3812,13 +3697,6 @@
             proto.end(stayOnWhilePluggedInToken);
 
             proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto.SCREEN_BRIGHTNESS_SETTING,
-                    mScreenBrightnessSetting);
-            proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto
-                            .SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT_SETTING,
-                    mScreenAutoBrightnessAdjustmentSetting);
-            proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto.SCREEN_BRIGHTNESS_MODE_SETTING,
                     mScreenBrightnessModeSetting);
             proto.write(
@@ -3835,14 +3713,6 @@
                     mUserInactiveOverrideFromWindowManager);
             proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto
-                            .TEMPORARY_SCREEN_BRIGHTNESS_SETTING_OVERRIDE,
-                    mTemporaryScreenBrightnessSettingOverride);
-            proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto
-                            .TEMPORARY_SCREEN_AUTO_BRIGHTNESS_ADJUSTMENT_SETTING_OVERRIDE,
-                    mTemporaryScreenAutoBrightnessAdjustmentSettingOverride);
-            proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto
                             .DOZE_SCREEN_STATE_OVERRIDE_FROM_DREAM_MANAGER,
                     mDozeScreenStateOverrideFromDreamManager);
             proto.write(
@@ -3866,16 +3736,9 @@
                     PowerServiceSettingsAndConfigurationDumpProto.ScreenBrightnessSettingLimitsProto
                             .SETTING_DEFAULT,
                     mScreenBrightnessSettingDefault);
-            proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto.ScreenBrightnessSettingLimitsProto
-                            .SETTING_FOR_VR_DEFAULT,
-                    mScreenBrightnessForVrSettingDefault);
             proto.end(screenBrightnessSettingLimitsToken);
 
             proto.write(
-                    PowerServiceSettingsAndConfigurationDumpProto.SCREEN_BRIGHTNESS_FOR_VR_SETTING,
-                    mScreenBrightnessForVrSetting);
-            proto.write(
                     PowerServiceSettingsAndConfigurationDumpProto.IS_DOUBLE_TAP_WAKE_ENABLED,
                     mDoubleTapWakeEnabled);
             proto.write(
@@ -4705,56 +4568,6 @@
         }
 
         /**
-         * Used by the settings application and brightness control widgets to
-         * temporarily override the current screen brightness setting so that the
-         * user can observe the effect of an intended settings change without applying
-         * it immediately.
-         *
-         * The override will be canceled when the setting value is next updated.
-         *
-         * @param brightness The overridden brightness.
-         *
-         * @see android.provider.Settings.System#SCREEN_BRIGHTNESS
-         */
-        @Override // Binder call
-        public void setTemporaryScreenBrightnessSettingOverride(int brightness) {
-            mContext.enforceCallingOrSelfPermission(
-                    android.Manifest.permission.DEVICE_POWER, null);
-
-            final long ident = Binder.clearCallingIdentity();
-            try {
-                setTemporaryScreenBrightnessSettingOverrideInternal(brightness);
-            } finally {
-                Binder.restoreCallingIdentity(ident);
-            }
-        }
-
-        /**
-         * Used by the settings application and brightness control widgets to
-         * temporarily override the current screen auto-brightness adjustment setting so that the
-         * user can observe the effect of an intended settings change without applying
-         * it immediately.
-         *
-         * The override will be canceled when the setting value is next updated.
-         *
-         * @param adj The overridden brightness, or Float.NaN to disable the override.
-         *
-         * @see android.provider.Settings.System#SCREEN_AUTO_BRIGHTNESS_ADJ
-         */
-        @Override // Binder call
-        public void setTemporaryScreenAutoBrightnessAdjustmentSettingOverride(float adj) {
-            mContext.enforceCallingOrSelfPermission(
-                    android.Manifest.permission.DEVICE_POWER, null);
-
-            final long ident = Binder.clearCallingIdentity();
-            try {
-                setTemporaryScreenAutoBrightnessAdjustmentSettingOverrideInternal(adj);
-            } finally {
-                Binder.restoreCallingIdentity(ident);
-            }
-        }
-
-        /**
          * Used by the phone application to make the attention LED flash when ringing.
          */
         @Override // Binder call
diff --git a/services/core/java/com/android/server/security/VerityUtils.java b/services/core/java/com/android/server/security/VerityUtils.java
new file mode 100644
index 0000000..d2d0e60
--- /dev/null
+++ b/services/core/java/com/android/server/security/VerityUtils.java
@@ -0,0 +1,192 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.security;
+
+import static android.system.OsConstants.PROT_READ;
+import static android.system.OsConstants.PROT_WRITE;
+
+import android.annotation.NonNull;
+import android.os.SharedMemory;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.apk.ApkSignatureVerifier;
+import android.util.apk.ByteBufferFactory;
+import android.util.apk.SignatureNotFoundException;
+import android.util.Slog;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.security.DigestException;
+import java.security.NoSuchAlgorithmException;
+import java.util.Arrays;
+
+/** Provides fsverity related operations. */
+abstract public class VerityUtils {
+    private static final String TAG = "VerityUtils";
+
+    private static final boolean DEBUG = false;
+
+    /**
+     * Generates Merkle tree and fsverity metadata.
+     *
+     * @return {@code SetupResult} that contains the {@code EsetupResultCode}, and when success, the
+     *         {@code FileDescriptor} to read all the data from.
+     */
+    public static SetupResult generateApkVeritySetupData(@NonNull String apkPath) {
+        if (DEBUG) Slog.d(TAG, "Trying to install apk verity to " + apkPath);
+        SharedMemory shm = null;
+        try {
+            byte[] signedRootHash = ApkSignatureVerifier.getVerityRootHash(apkPath);
+            if (signedRootHash == null) {
+                if (DEBUG) {
+                    Slog.d(TAG, "Skip verity tree generation since there is no root hash");
+                }
+                return SetupResult.skipped();
+            }
+
+            shm = generateApkVerityIntoSharedMemory(apkPath, signedRootHash);
+            FileDescriptor rfd = shm.getFileDescriptor();
+            if (rfd == null || !rfd.valid()) {
+                return SetupResult.failed();
+            }
+            return SetupResult.ok(Os.dup(rfd));
+        } catch (IOException | SecurityException | DigestException | NoSuchAlgorithmException |
+                SignatureNotFoundException | ErrnoException e) {
+            Slog.e(TAG, "Failed to set up apk verity: ", e);
+            return SetupResult.failed();
+        } finally {
+            if (shm != null) {
+                shm.close();
+            }
+        }
+    }
+
+    /**
+     * {@see ApkSignatureVerifier#generateFsverityRootHash(String)}.
+     */
+    public static byte[] generateFsverityRootHash(@NonNull String apkPath)
+            throws NoSuchAlgorithmException, DigestException, IOException {
+        return ApkSignatureVerifier.generateFsverityRootHash(apkPath);
+    }
+
+    /**
+     * Returns a {@code SharedMemory} that contains Merkle tree and fsverity headers for the given
+     * apk, in the form that can immediately be used for fsverity setup.
+     */
+    private static SharedMemory generateApkVerityIntoSharedMemory(
+            String apkPath, byte[] expectedRootHash)
+            throws IOException, SecurityException, DigestException, NoSuchAlgorithmException,
+                   SignatureNotFoundException {
+        TrackedShmBufferFactory shmBufferFactory = new TrackedShmBufferFactory();
+        byte[] generatedRootHash = ApkSignatureVerifier.generateApkVerity(apkPath,
+                shmBufferFactory);
+        // We only generate Merkle tree once here, so it's important to make sure the root hash
+        // matches the signed one in the apk.
+        if (!Arrays.equals(expectedRootHash, generatedRootHash)) {
+            throw new SecurityException("Locally generated verity root hash does not match");
+        }
+
+        SharedMemory shm = shmBufferFactory.releaseSharedMemory();
+        if (shm == null) {
+            throw new IllegalStateException("Failed to generate verity tree into shared memory");
+        }
+        if (!shm.setProtect(PROT_READ)) {
+            throw new SecurityException("Failed to set up shared memory correctly");
+        }
+        return shm;
+    }
+
+    public static class SetupResult {
+        /** Result code if verity is set up correctly. */
+        private static final int RESULT_OK = 1;
+
+        /** Result code if the apk does not contain a verity root hash. */
+        private static final int RESULT_SKIPPED = 2;
+
+        /** Result code if the setup failed. */
+        private static final int RESULT_FAILED = 3;
+
+        private final int mCode;
+        private final FileDescriptor mFileDescriptor;
+
+        public static SetupResult ok(@NonNull FileDescriptor fileDescriptor) {
+            return new SetupResult(RESULT_OK, fileDescriptor);
+        }
+
+        public static SetupResult skipped() {
+            return new SetupResult(RESULT_SKIPPED, null);
+        }
+
+        public static SetupResult failed() {
+            return new SetupResult(RESULT_FAILED, null);
+        }
+
+        private SetupResult(int code, FileDescriptor fileDescriptor) {
+            this.mCode = code;
+            this.mFileDescriptor = fileDescriptor;
+        }
+
+        public boolean isFailed() {
+            return mCode == RESULT_FAILED;
+        }
+
+        public boolean isOk() {
+            return mCode == RESULT_OK;
+        }
+
+        public @NonNull FileDescriptor getUnownedFileDescriptor() {
+            return mFileDescriptor;
+        }
+    }
+
+    /** A {@code ByteBufferFactory} that creates a shared memory backed {@code ByteBuffer}. */
+    private static class TrackedShmBufferFactory implements ByteBufferFactory {
+        private SharedMemory mShm;
+        private ByteBuffer mBuffer;
+
+        @Override
+        public ByteBuffer create(int capacity) throws SecurityException {
+            try {
+                if (DEBUG) Slog.d(TAG, "Creating shared memory for apk verity");
+                // NB: This method is supposed to be called once according to the contract with
+                // ApkSignatureSchemeV2Verifier.
+                if (mBuffer != null) {
+                    throw new IllegalStateException("Multiple instantiation from this factory");
+                }
+                mShm = SharedMemory.create("apkverity", capacity);
+                if (!mShm.setProtect(PROT_READ | PROT_WRITE)) {
+                    throw new SecurityException("Failed to set protection");
+                }
+                mBuffer = mShm.mapReadWrite();
+                return mBuffer;
+            } catch (ErrnoException e) {
+                throw new SecurityException("Failed to set protection", e);
+            }
+        }
+
+        public SharedMemory releaseSharedMemory() {
+            if (mBuffer != null) {
+                SharedMemory.unmap(mBuffer);
+                mBuffer = null;
+            }
+            SharedMemory tmp = mShm;
+            mShm = null;
+            return tmp;
+        }
+    }
+}
diff --git a/services/core/java/com/android/server/stats/StatsCompanionService.java b/services/core/java/com/android/server/stats/StatsCompanionService.java
index f82dc24..faafb39 100644
--- a/services/core/java/com/android/server/stats/StatsCompanionService.java
+++ b/services/core/java/com/android/server/stats/StatsCompanionService.java
@@ -18,16 +18,19 @@
 import android.annotation.Nullable;
 import android.app.AlarmManager;
 import android.app.PendingIntent;
+import android.app.StatsManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.content.IntentSender;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
 import android.net.NetworkStats;
 import android.net.wifi.IWifiManager;
 import android.net.wifi.WifiActivityEnergyInfo;
+import android.os.StatsDimensionsValue;
 import android.os.BatteryStatsInternal;
 import android.os.Binder;
 import android.os.Bundle;
@@ -80,9 +83,12 @@
 
     static final String TAG = "StatsCompanionService";
     static final boolean DEBUG = true;
+
     public static final String ACTION_TRIGGER_COLLECTION =
         "com.android.server.stats.action.TRIGGER_COLLECTION";
 
+    public static final int CODE_SUBSCRIBER_BROADCAST = 1;
+
     private final Context mContext;
     private final AlarmManager mAlarmManager;
     @GuardedBy("sStatsdLock")
@@ -151,10 +157,37 @@
 
     @Override
     public void sendBroadcast(String pkg, String cls) {
+        // TODO: Use a pending intent, and enfoceCallingPermission.
         mContext.sendBroadcastAsUser(new Intent(ACTION_TRIGGER_COLLECTION).setClassName(pkg, cls),
                 UserHandle.SYSTEM);
     }
 
+    @Override
+    public void sendSubscriberBroadcast(IBinder intentSenderBinder, long configUid, long configKey,
+                                        long subscriptionId, long subscriptionRuleId,
+                                        StatsDimensionsValue dimensionsValue) {
+        if (DEBUG) Slog.d(TAG, "Statsd requested to sendSubscriberBroadcast.");
+        enforceCallingPermission();
+        IntentSender intentSender = new IntentSender(intentSenderBinder);
+        Intent intent = new Intent()
+                .putExtra(StatsManager.EXTRA_STATS_CONFIG_UID, configUid)
+                .putExtra(StatsManager.EXTRA_STATS_CONFIG_KEY, configKey)
+                .putExtra(StatsManager.EXTRA_STATS_SUBSCRIPTION_ID, subscriptionId)
+                .putExtra(StatsManager.EXTRA_STATS_SUBSCRIPTION_RULE_ID, subscriptionRuleId)
+                .putExtra(StatsManager.EXTRA_STATS_DIMENSIONS_VALUE, dimensionsValue);
+        try {
+            intentSender.sendIntent(mContext, CODE_SUBSCRIBER_BROADCAST, intent, null, null);
+        } catch (IntentSender.SendIntentException e) {
+            Slog.w(TAG, "Unable to send using IntentSender from uid " + configUid
+                    + "; presumably it had been cancelled.");
+            if (DEBUG) {
+                Slog.d(TAG, String.format("SubscriberBroadcast params {%d %d %d %d %s}",
+                        configUid, configKey, subscriptionId,
+                        subscriptionRuleId, dimensionsValue));
+            }
+        }
+    }
+
     private final static int[] toIntArray(List<Integer> list) {
         int[] ret = new int[list.size()];
         for (int i = 0; i < ret.length; i++) {
@@ -673,6 +706,8 @@
         enforceCallingPermission();
         if (DEBUG) Slog.d(TAG, "learned that statsdReady");
         sayHiToStatsd(); // tell statsd that we're ready too and link to it
+        mContext.sendBroadcast(new Intent(StatsManager.ACTION_STATSD_STARTED),
+                android.Manifest.permission.DUMP);
     }
 
     @Override
diff --git a/services/core/java/com/android/server/utils/AppInstallerUtil.java b/services/core/java/com/android/server/utils/AppInstallerUtil.java
index af7ff41..5d2dbe6 100644
--- a/services/core/java/com/android/server/utils/AppInstallerUtil.java
+++ b/services/core/java/com/android/server/utils/AppInstallerUtil.java
@@ -56,6 +56,7 @@
         final Intent result = resolveIntent(context, intent);
         if (result != null) {
             result.putExtra(Intent.EXTRA_PACKAGE_NAME, packageName);
+            result.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
             return result;
         }
         return null;
diff --git a/services/core/java/com/android/server/wm/WindowStateAnimator.java b/services/core/java/com/android/server/wm/WindowStateAnimator.java
index ba5156b..1cfa956 100644
--- a/services/core/java/com/android/server/wm/WindowStateAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowStateAnimator.java
@@ -238,15 +238,6 @@
         return mWin.isAnimating();
     }
 
-    /**
-     * Is this window currently waiting to run an opening animation?
-     */
-    boolean isWaitingForOpening() {
-        return mService.mAppTransition.isTransitionSet()
-                && (mWin.mAppToken != null && mWin.mAppToken.isHidden())
-                && mService.mOpeningApps.contains(mWin.mAppToken);
-    }
-
     void cancelExitAnimationForNextAnimationLocked() {
         if (DEBUG_ANIM) Slog.d(TAG,
                 "cancelExitAnimationForNextAnimationLocked: " + mWin);
@@ -1057,17 +1048,6 @@
             return;
         }
 
-        // Do not change surface properties of opening apps if we are waiting for the
-        // transition to be ready. transitionGoodToGo could be not ready even after all
-        // opening apps are drawn. It's only waiting on isFetchingAppTransitionsSpecs()
-        // to get the animation spec. (For example, go into Recents and immediately open
-        // the same app again before the app's surface is destroyed or saved, the surface
-        // is always ready in the whole process.) If we go ahead here, the opening app
-        // will be shown with the full size before the correct animation spec arrives.
-        if (isWaitingForOpening()) {
-            return;
-        }
-
         boolean displayed = false;
 
         computeShownFrameLocked();
diff --git a/services/core/jni/BroadcastRadio/BroadcastRadioService.cpp b/services/core/jni/BroadcastRadio/BroadcastRadioService.cpp
index 9892146..176ae81 100644
--- a/services/core/jni/BroadcastRadio/BroadcastRadioService.cpp
+++ b/services/core/jni/BroadcastRadio/BroadcastRadioService.cpp
@@ -249,6 +249,15 @@
 
     Tuner::assignHalInterfaces(env, tuner, module.radioModule, halTuner);
     ALOGD("Opened tuner %p", halTuner.get());
+
+    bool isConnected = true;
+    halTuner->getConfiguration([&](Result result, const BandConfig& config) {
+        if (result == Result::OK) isConnected = config.antennaConnected;
+    });
+    if (!isConnected) {
+        tunerCb->antennaStateChange(false);
+    }
+
     return tuner.release();
 }
 
diff --git a/services/core/jni/BroadcastRadio/Tuner.cpp b/services/core/jni/BroadcastRadio/Tuner.cpp
index 42eb873..42c1332 100644
--- a/services/core/jni/BroadcastRadio/Tuner.cpp
+++ b/services/core/jni/BroadcastRadio/Tuner.cpp
@@ -352,39 +352,6 @@
     convert::ThrowIfFailed(env, halTuner->cancelAnnouncement());
 }
 
-static jobject nativeGetProgramInformation(JNIEnv *env, jobject obj, jlong nativeContext) {
-    ALOGV("%s", __func__);
-    lock_guard<mutex> lk(gContextMutex);
-    auto& ctx = getNativeContext(nativeContext);
-
-    auto halTuner10 = getHalTuner(ctx);
-    auto halTuner11 = ctx.mHalTuner11;
-    if (halTuner10 == nullptr) return nullptr;
-
-    JavaRef<jobject> jInfo;
-    Result halResult;
-    Return<void> hidlResult;
-    if (halTuner11 != nullptr) {
-        hidlResult = halTuner11->getProgramInformation_1_1([&](Result result,
-                const V1_1::ProgramInfo& info) {
-            halResult = result;
-            if (result != Result::OK) return;
-            jInfo = convert::ProgramInfoFromHal(env, info);
-        });
-    } else {
-        hidlResult = halTuner10->getProgramInformation([&](Result result,
-                const V1_0::ProgramInfo& info) {
-            halResult = result;
-            if (result != Result::OK) return;
-            jInfo = convert::ProgramInfoFromHal(env, info, ctx.mBand);
-        });
-    }
-
-    if (jInfo != nullptr) return jInfo.release();
-    convert::ThrowIfFailed(env, hidlResult, halResult);
-    return nullptr;
-}
-
 static bool nativeStartBackgroundScan(JNIEnv *env, jobject obj, jlong nativeContext) {
     ALOGV("%s", __func__);
     auto halTuner = getHalTuner11(nativeContext);
@@ -541,21 +508,6 @@
     return jResults.release();
 }
 
-static bool nativeIsAntennaConnected(JNIEnv *env, jobject obj, jlong nativeContext) {
-    ALOGV("%s", __func__);
-    auto halTuner = getHalTuner(nativeContext);
-    if (halTuner == nullptr) return false;
-
-    bool isConnected = false;
-    Result halResult;
-    auto hidlResult = halTuner->getConfiguration([&](Result result, const BandConfig& config) {
-        halResult = result;
-        isConnected = config.antennaConnected;
-    });
-    convert::ThrowIfFailed(env, hidlResult, halResult);
-    return isConnected;
-}
-
 static const JNINativeMethod gTunerMethods[] = {
     { "nativeInit", "(IZI)J", (void*)nativeInit },
     { "nativeFinalize", "(J)V", (void*)nativeFinalize },
@@ -570,8 +522,6 @@
     { "nativeTune", "(JLandroid/hardware/radio/ProgramSelector;)V", (void*)nativeTune },
     { "nativeCancel", "(J)V", (void*)nativeCancel },
     { "nativeCancelAnnouncement", "(J)V", (void*)nativeCancelAnnouncement },
-    { "nativeGetProgramInformation", "(J)Landroid/hardware/radio/RadioManager$ProgramInfo;",
-            (void*)nativeGetProgramInformation },
     { "nativeStartBackgroundScan", "(J)Z", (void*)nativeStartBackgroundScan },
     { "nativeGetProgramList", "(JLjava/util/Map;)Ljava/util/List;",
             (void*)nativeGetProgramList },
@@ -580,7 +530,6 @@
     { "nativeSetAnalogForced", "(JZ)V", (void*)nativeSetAnalogForced },
     { "nativeSetParameters", "(JLjava/util/Map;)Ljava/util/Map;", (void*)nativeSetParameters },
     { "nativeGetParameters", "(JLjava/util/List;)Ljava/util/Map;", (void*)nativeGetParameters },
-    { "nativeIsAntennaConnected", "(J)Z", (void*)nativeIsAntennaConnected },
 };
 
 } // namespace Tuner
diff --git a/services/core/jni/BroadcastRadio/convert.cpp b/services/core/jni/BroadcastRadio/convert.cpp
index be1ad72..8c38e0a 100644
--- a/services/core/jni/BroadcastRadio/convert.cpp
+++ b/services/core/jni/BroadcastRadio/convert.cpp
@@ -49,6 +49,12 @@
 using V1_1::ProgramSelector;
 using V1_1::VendorKeyValue;
 
+// HAL 2.0 flags that have equivalent HAL 1.x fields
+enum class ProgramInfoFlagsExt {
+    TUNED = 1 << 4,
+    STEREO = 1 << 5,
+};
+
 static JavaRef<jobject> BandDescriptorFromHal(JNIEnv *env, const RegionalBandConfig &config);
 static JavaRef<jobject> BandDescriptorFromHal(JNIEnv *env, const V1_0::BandConfig &config, Region region);
 
@@ -614,9 +620,14 @@
     auto jVendorInfo = info11 ? VendorInfoFromHal(env, info11->vendorInfo) : nullptr;
     auto jSelector = ProgramSelectorFromHal(env, selector);
 
+    jint flags = info11 ? info11->flags : 0;
+    if (info10.tuned) flags |= static_cast<jint>(ProgramInfoFlagsExt::TUNED);
+    if (info10.stereo) flags |= static_cast<jint>(ProgramInfoFlagsExt::STEREO);
+    // info10.digital is dropped, because it has no equivalent in the new APIs
+
     return make_javaref(env, env->NewObject(gjni.ProgramInfo.clazz, gjni.ProgramInfo.cstor,
-            jSelector.get(), info10.tuned, info10.stereo, info10.digital, info10.signalStrength,
-            jMetadata.get(), info11 ? info11->flags : 0, jVendorInfo.get()));
+            jSelector.get(), nullptr, nullptr, nullptr, flags, info10.signalStrength,
+            jMetadata.get(), jVendorInfo.get()));
 }
 
 JavaRef<jobject> ProgramInfoFromHal(JNIEnv *env, const V1_0::ProgramInfo &info, V1_0::Band band) {
@@ -705,9 +716,15 @@
 
     auto programInfoClass = FindClassOrDie(env, "android/hardware/radio/RadioManager$ProgramInfo");
     gjni.ProgramInfo.clazz = MakeGlobalRefOrDie(env, programInfoClass);
-    gjni.ProgramInfo.cstor = GetMethodIDOrDie(env, programInfoClass, "<init>",
-            "(Landroid/hardware/radio/ProgramSelector;ZZZILandroid/hardware/radio/RadioMetadata;I"
-            "Ljava/util/Map;)V");
+    gjni.ProgramInfo.cstor = GetMethodIDOrDie(env, programInfoClass, "<init>", "("
+            "Landroid/hardware/radio/ProgramSelector;"
+            "Landroid/hardware/radio/ProgramSelector$Identifier;"
+            "Landroid/hardware/radio/ProgramSelector$Identifier;"
+            "Ljava/util/Collection;"  // relatedContent
+            "II"  // flags, signalQuality
+            "Landroid/hardware/radio/RadioMetadata;"
+            "Ljava/util/Map;"  // vendorInfo
+            ")V");
 
     auto programSelectorClass = FindClassOrDie(env, "android/hardware/radio/ProgramSelector");
     gjni.ProgramSelector.clazz = MakeGlobalRefOrDie(env, programSelectorClass);
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java b/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
index 886747c..a8e8237 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
@@ -70,6 +70,10 @@
 
     public void transferOwnership(ComponentName admin, ComponentName target, PersistableBundle bundle) {}
 
+    public PersistableBundle getTransferOwnershipBundle() {
+        return null;
+    }
+
     public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm,
             ParcelableKeyGenParameterSpec keySpec, int idAttestationFlags,
             KeymasterCertificateChain attestationChain) {
@@ -135,11 +139,6 @@
     }
 
     @Override
-    public CharSequence getPrintingDisabledReason() {
-        return null;
-    }
-
-    @Override
     public List<String> setMeteredDataDisabled(ComponentName admin, List<String> packageNames) {
         return packageNames;
     }
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 38e2168..99712a5 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -20,7 +20,7 @@
 import static android.Manifest.permission.MANAGE_CA_CERTIFICATES;
 import static android.app.ActivityManager.LOCK_TASK_MODE_NONE;
 import static android.app.ActivityManager.USER_OP_SUCCESS;
-import static android.app.admin.DeviceAdminReceiver.EXTRA_TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE;
+import static android.app.admin.DeviceAdminReceiver.EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE;
 import static android.app.admin.DevicePolicyManager.ACTION_PROVISION_MANAGED_USER;
 import static android.app.admin.DevicePolicyManager.CODE_ACCOUNTS_NOT_EMPTY;
 import static android.app.admin.DevicePolicyManager.CODE_ADD_MANAGED_PROFILE_DISALLOWED;
@@ -58,6 +58,7 @@
 import static android.app.admin.DevicePolicyManager.WIPE_EXTERNAL_STORAGE;
 import static android.app.admin.DevicePolicyManager.WIPE_RESET_PROTECTION_DATA;
 import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES;
+
 import static android.provider.Telephony.Carriers.DPC_URI;
 import static android.provider.Telephony.Carriers.ENFORCE_KEY;
 import static android.provider.Telephony.Carriers.ENFORCE_MANAGED_URI;
@@ -67,6 +68,12 @@
 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker
         .STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW;
 
+import static com.android.internal.logging.nano.MetricsProto.MetricsEvent.PROVISIONING_ENTRY_POINT_ADB;
+import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW;
+
+import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_DEVICE_OWNER;
+import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_PROFILE_OWNER;
+
 import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
 import static org.xmlpull.v1.XmlPullParser.END_TAG;
 import static org.xmlpull.v1.XmlPullParser.TEXT;
@@ -181,6 +188,7 @@
 import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.ArraySet;
+import android.util.AtomicFile;
 import android.util.Log;
 import android.util.Pair;
 import android.util.Slog;
@@ -240,6 +248,7 @@
 import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Objects;
+import java.util.Map.Entry;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -256,6 +265,9 @@
 
     private static final String DEVICE_POLICIES_XML = "device_policies.xml";
 
+    private static final String TRANSFER_OWNERSHIP_PARAMETERS_XML =
+            "transfer-ownership-parameters.xml";
+
     private static final String TAG_ACCEPTED_CA_CERTIFICATES = "accepted-ca-certificate";
 
     private static final String TAG_LOCK_TASK_COMPONENTS = "lock-task-component";
@@ -460,6 +472,9 @@
 
     private SetupContentObserver mSetupContentObserver;
 
+    @VisibleForTesting
+    final TransferOwnershipMetadataManager mTransferOwnershipMetadataManager;
+
     private final Runnable mRemoteBugreportTimeoutRunnable = new Runnable() {
         @Override
         public void run() {
@@ -2023,6 +2038,10 @@
         void postOnSystemServerInitThreadPool(Runnable runnable) {
             SystemServerInitThreadPool.get().submit(runnable, LOG_TAG);
         }
+
+        public TransferOwnershipMetadataManager newTransferOwnershipMetadataManager() {
+            return new TransferOwnershipMetadataManager();
+        }
     }
 
     /**
@@ -2067,6 +2086,8 @@
 
         mOverlayPackagesProvider = new OverlayPackagesProvider(mContext);
 
+        mTransferOwnershipMetadataManager = mInjector.newTransferOwnershipMetadataManager();
+
         if (!mHasFeature) {
             // Skip the rest of the initialization
             return;
@@ -3308,6 +3329,29 @@
                 activityManagerInternal.setSwitchingToSystemUserMessage(
                         deviceOwner.endUserSessionMessage);
             }
+
+            revertTransferOwnershipIfNecessaryLocked();
+        }
+    }
+
+    private void revertTransferOwnershipIfNecessaryLocked() {
+        if (!mTransferOwnershipMetadataManager.metadataFileExists()) {
+            return;
+        }
+        Slog.e(LOG_TAG, "Owner transfer metadata file exists! Reverting transfer.");
+        final TransferOwnershipMetadataManager.Metadata metadata =
+                mTransferOwnershipMetadataManager.loadMetadataFile();
+        // Revert transfer
+        if (metadata.adminType.equals(ADMIN_TYPE_PROFILE_OWNER)) {
+            transferProfileOwnershipLocked(metadata.targetComponent, metadata.sourceComponent,
+                    metadata.userId);
+            deleteTransferOwnershipMetadataFileLocked();
+            deleteTransferOwnershipBundleLocked(metadata.userId);
+        } else if (metadata.adminType.equals(ADMIN_TYPE_DEVICE_OWNER)) {
+            transferDeviceOwnershipLocked(metadata.targetComponent, metadata.sourceComponent,
+                    metadata.userId);
+            deleteTransferOwnershipMetadataFileLocked();
+            deleteTransferOwnershipBundleLocked(metadata.userId);
         }
     }
 
@@ -3568,6 +3612,11 @@
     private void transferActiveAdminUncheckedLocked(ComponentName incomingReceiver,
             ComponentName outgoingReceiver, int userHandle) {
         final DevicePolicyData policy = getUserData(userHandle);
+        if (!policy.mAdminMap.containsKey(outgoingReceiver)
+                && policy.mAdminMap.containsKey(incomingReceiver)) {
+            // Nothing to transfer - the incoming receiver is already the active admin.
+            return;
+        }
         final DeviceAdminInfo incomingDeviceInfo = findAdmin(incomingReceiver, userHandle,
             /* throwForMissingPermission= */ true);
         final ActiveAdmin adminToTransfer = policy.mAdminMap.get(outgoingReceiver);
@@ -3581,7 +3630,6 @@
         }
 
         saveSettingsLocked(userHandle);
-        //TODO: Make sure we revert back when we detect a failure.
         sendAdminCommandLocked(adminToTransfer, DeviceAdminReceiver.ACTION_DEVICE_ADMIN_ENABLED,
                 null, null);
     }
@@ -7331,6 +7379,7 @@
         mInjector.securityLogSetLoggingEnabledProperty(false);
         mSecurityLogMonitor.stop();
         setNetworkLoggingActiveInternal(false);
+        deleteTransferOwnershipBundleLocked(userId);
 
         try {
             if (mInjector.getIBackupManager() != null) {
@@ -7433,6 +7482,7 @@
         clearUserPoliciesLocked(userId);
         mOwners.removeProfileOwner(userId);
         mOwners.writeProfileOwner(userId);
+        deleteTransferOwnershipBundleLocked(userId);
     }
 
     @Override
@@ -10264,6 +10314,45 @@
         public boolean canUserHaveUntrustedCredentialReset(@UserIdInt int userId) {
             return DevicePolicyManagerService.this.canUserHaveUntrustedCredentialReset(userId);
         }
+
+        @Override
+        public CharSequence getPrintingDisabledReasonForUser(@UserIdInt int userId) {
+            synchronized (DevicePolicyManagerService.this) {
+                DevicePolicyData policy = getUserData(userId);
+                if (policy.mPrintingEnabled) {
+                    Log.e(LOG_TAG, "printing is enabled");
+                    return null;
+                }
+                String ownerPackage = mOwners.getProfileOwnerPackage(userId);
+                if (ownerPackage == null) {
+                    ownerPackage = mOwners.getDeviceOwnerPackageName();
+                }
+                PackageManager pm = mInjector.getPackageManager();
+                PackageInfo packageInfo;
+                try {
+                    packageInfo = pm.getPackageInfo(ownerPackage, 0);
+                } catch (NameNotFoundException e) {
+                    Log.e(LOG_TAG, "getPackageInfo error", e);
+                    return null;
+                }
+                if (packageInfo == null) {
+                    Log.e(LOG_TAG, "packageInfo is inexplicably null");
+                    return null;
+                }
+                ApplicationInfo appInfo = packageInfo.applicationInfo;
+                if (appInfo == null) {
+                    Log.e(LOG_TAG, "appInfo is inexplicably null");
+                    return null;
+                }
+                CharSequence appLabel = pm.getApplicationLabel(appInfo);
+                if (appLabel == null) {
+                    Log.e(LOG_TAG, "appLabel is inexplicably null");
+                    return null;
+                }
+                return ((Context) ActivityThread.currentActivityThread().getSystemUiContext())
+                        .getResources().getString(R.string.printing_disabled_by, appLabel);
+            }
+        }
     }
 
     private Intent createShowAdminSupportIntent(ComponentName admin, int userId) {
@@ -12286,10 +12375,9 @@
                 mOverlayPackagesProvider.getNonRequiredApps(admin, userId, provisioningAction));
     }
 
-    //TODO: Add callback information to the javadoc once it is completed.
-    //TODO: Make transferOwnership atomic.
     @Override
-    public void transferOwnership(ComponentName admin, ComponentName target, PersistableBundle bundle) {
+    public void transferOwnership(@NonNull ComponentName admin, @NonNull ComponentName target,
+            @Nullable PersistableBundle bundle) {
         if (!mHasFeature) {
             return;
         }
@@ -12322,12 +12410,41 @@
 
         final long id = mInjector.binderClearCallingIdentity();
         try {
-            //STOPSHIP add support for COMP, edge cases when device is rebooted/work mode off
             synchronized (this) {
+                /*
+                * We must ensure the whole process is atomic to prevent the device from ending up
+                * in an invalid state (e.g. no active admin). This could happen if the device
+                * is rebooted or work mode is turned off mid-transfer.
+                * In order to guarantee atomicity, we:
+                *
+                * 1. Save an atomic journal file describing the transfer process
+                * 2. Perform the transfer itself
+                * 3. Delete the journal file
+                *
+                * That way if the journal file exists on device boot, we know that the transfer
+                * must be reverted back to the original administrator. This logic is implemented in
+                * revertTransferOwnershipIfNecessaryLocked.
+                * */
+                if (bundle == null) {
+                    bundle = new PersistableBundle();
+                }
                 if (isProfileOwner(admin, callingUserId)) {
-                    transferProfileOwnerLocked(admin, target, callingUserId, bundle);
+                    prepareTransfer(admin, target, bundle, callingUserId,
+                            ADMIN_TYPE_PROFILE_OWNER);
+                    transferProfileOwnershipLocked(admin, target, callingUserId);
+                    sendProfileOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE,
+                            getTransferOwnershipAdminExtras(bundle), callingUserId);
+                    postTransfer(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED, callingUserId);
+                    if (isUserAffiliatedWithDeviceLocked(callingUserId)) {
+                        notifyAffiliatedProfileTransferOwnershipComplete(callingUserId);
+                    }
                 } else if (isDeviceOwner(admin, callingUserId)) {
-                    transferDeviceOwnerLocked(admin, target, callingUserId, bundle);
+                    prepareTransfer(admin, target, bundle, callingUserId,
+                            ADMIN_TYPE_DEVICE_OWNER);
+                    transferDeviceOwnershipLocked(admin, target, callingUserId);
+                    sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE,
+                            getTransferOwnershipAdminExtras(bundle));
+                    postTransfer(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, callingUserId);
                 }
             }
         } finally {
@@ -12335,43 +12452,55 @@
         }
     }
 
+    private void prepareTransfer(ComponentName admin, ComponentName target,
+            PersistableBundle bundle, int callingUserId, String adminType) {
+        saveTransferOwnershipBundleLocked(bundle, callingUserId);
+        mTransferOwnershipMetadataManager.saveMetadataFile(
+                new TransferOwnershipMetadataManager.Metadata(admin, target,
+                        callingUserId, adminType));
+    }
+
+    private void postTransfer(String broadcast, int callingUserId) {
+        deleteTransferOwnershipMetadataFileLocked();
+        sendOwnerChangedBroadcast(broadcast, callingUserId);
+    }
+
+    private void notifyAffiliatedProfileTransferOwnershipComplete(int callingUserId) {
+        final Bundle extras = new Bundle();
+        extras.putParcelable(Intent.EXTRA_USER, UserHandle.of(callingUserId));
+        sendDeviceOwnerCommand(
+                DeviceAdminReceiver.ACTION_AFFILIATED_PROFILE_TRANSFER_OWNERSHIP_COMPLETE, extras);
+    }
+
     /**
      * Transfers the profile owner for user with id profileOwnerUserId from admin to target.
      */
-    private void transferProfileOwnerLocked(ComponentName admin, ComponentName target,
-            int profileOwnerUserId, PersistableBundle bundle) {
+    private void transferProfileOwnershipLocked(ComponentName admin, ComponentName target,
+            int profileOwnerUserId) {
         transferActiveAdminUncheckedLocked(target, admin, profileOwnerUserId);
         mOwners.transferProfileOwner(target, profileOwnerUserId);
         Slog.i(LOG_TAG, "Profile owner set: " + target + " on user " + profileOwnerUserId);
         mOwners.writeProfileOwner(profileOwnerUserId);
         mDeviceAdminServiceController.startServiceForOwner(
                 target.getPackageName(), profileOwnerUserId, "transfer-profile-owner");
-        sendProfileOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE,
-                getTransferOwnerAdminExtras(bundle), profileOwnerUserId);
-        sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_PROFILE_OWNER_CHANGED,
-                profileOwnerUserId);
     }
 
     /**
      * Transfers the device owner for user with id userId from admin to target.
      */
-    private void transferDeviceOwnerLocked(ComponentName admin, ComponentName target, int userId,
-            PersistableBundle bundle) {
+    private void transferDeviceOwnershipLocked(ComponentName admin, ComponentName target, int userId) {
         transferActiveAdminUncheckedLocked(target, admin, userId);
-        mOwners.transferDeviceOwner(target);
+        mOwners.transferDeviceOwnership(target);
         Slog.i(LOG_TAG, "Device owner set: " + target + " on user " + userId);
         mOwners.writeDeviceOwner();
         mDeviceAdminServiceController.startServiceForOwner(
                 target.getPackageName(), userId, "transfer-device-owner");
-        sendDeviceOwnerCommand(DeviceAdminReceiver.ACTION_TRANSFER_OWNERSHIP_COMPLETE,
-                getTransferOwnerAdminExtras(bundle));
-        sendOwnerChangedBroadcast(DevicePolicyManager.ACTION_DEVICE_OWNER_CHANGED, userId);
     }
 
-    private Bundle getTransferOwnerAdminExtras(PersistableBundle bundle) {
+    private Bundle getTransferOwnershipAdminExtras(PersistableBundle bundle) {
         Bundle extras = new Bundle();
         if (bundle != null) {
-            extras.putParcelable(EXTRA_TRANSFER_OWNER_ADMIN_EXTRAS_BUNDLE, bundle);
+            extras.putParcelable(EXTRA_TRANSFER_OWNERSHIP_ADMIN_EXTRAS_BUNDLE, bundle);
         }
         return extras;
     }
@@ -12476,6 +12605,34 @@
         }
     }
 
+    private void deleteTransferOwnershipMetadataFileLocked() {
+        mTransferOwnershipMetadataManager.deleteMetadataFile();
+    }
+
+    @Override
+    @Nullable
+    public PersistableBundle getTransferOwnershipBundle() {
+        synchronized (this) {
+            final int callingUserId = mInjector.userHandleGetCallingUserId();
+            getActiveAdminForCallerLocked(null, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER);
+            final File bundleFile = new File(
+                    mInjector.environmentGetUserSystemDirectory(callingUserId),
+                    TRANSFER_OWNERSHIP_PARAMETERS_XML);
+            if (!bundleFile.exists()) {
+                return null;
+            }
+            try (FileInputStream stream = new FileInputStream(bundleFile)) {
+                XmlPullParser parser = Xml.newPullParser();
+                parser.setInput(stream, null);
+                return PersistableBundle.restoreFromXml(parser);
+            } catch (IOException | XmlPullParserException | IllegalArgumentException e) {
+                Slog.e(LOG_TAG, "Caught exception while trying to load the "
+                        + "owner transfer parameters from file " + bundleFile, e);
+                return null;
+            }
+        }
+    }
+
     /**
      * Returns whether printing is enabled for current user.
      * @hide
@@ -12495,55 +12652,6 @@
         }
     }
 
-    /**
-     * Returns text of error message if printing is disabled.
-     * Only to be called by Print Service.
-     * @hide
-     */
-    @Override
-    public CharSequence getPrintingDisabledReason() {
-        if (!hasPrinting() || !mHasFeature) {
-            Log.e(LOG_TAG, "no printing or no management");
-            return null;
-        }
-        synchronized (this) {
-            final int userHandle = mInjector.userHandleGetCallingUserId();
-            DevicePolicyData policy = getUserData(userHandle);
-            if (policy.mPrintingEnabled) {
-                Log.e(LOG_TAG, "printing is enabled");
-                return null;
-            }
-            String ownerPackage = mOwners.getProfileOwnerPackage(userHandle);
-            if (ownerPackage == null) {
-                ownerPackage = mOwners.getDeviceOwnerPackageName();
-            }
-            PackageManager pm = mInjector.getPackageManager();
-            PackageInfo packageInfo;
-            try {
-                packageInfo = pm.getPackageInfo(ownerPackage, 0);
-            } catch (NameNotFoundException e) {
-                Log.e(LOG_TAG, "getPackageInfo error", e);
-                return null;
-            }
-            if (packageInfo == null) {
-                Log.e(LOG_TAG, "packageInfo is inexplicably null");
-                return null;
-            }
-            ApplicationInfo appInfo = packageInfo.applicationInfo;
-            if (appInfo == null) {
-                Log.e(LOG_TAG, "appInfo is inexplicably null");
-                return null;
-            }
-            CharSequence appLabel = pm.getApplicationLabel(appInfo);
-            if (appLabel == null) {
-                Log.e(LOG_TAG, "appLabel is inexplicably null");
-                return null;
-            }
-            return ((Context) ActivityThread.currentActivityThread().getSystemUiContext())
-                    .getResources().getString(R.string.printing_disabled_by, appLabel);
-        }
-    }
-
     @Override
     public int addOverrideApn(@NonNull ComponentName who, @NonNull ApnSetting apnSetting) {
         if (!mHasFeature) {
@@ -12724,4 +12832,32 @@
         }
         return false;
     }
+
+    @VisibleForTesting
+    void saveTransferOwnershipBundleLocked(PersistableBundle bundle, int userId) {
+        final File parametersFile = new File(
+                mInjector.environmentGetUserSystemDirectory(userId),
+                TRANSFER_OWNERSHIP_PARAMETERS_XML);
+        final AtomicFile atomicFile = new AtomicFile(parametersFile);
+        FileOutputStream stream = null;
+        try {
+            stream = atomicFile.startWrite();
+            final XmlSerializer serializer = new FastXmlSerializer();
+            serializer.setOutput(stream, StandardCharsets.UTF_8.name());
+            serializer.startDocument(null, true);
+            bundle.saveToXml(serializer);
+            atomicFile.finishWrite(stream);
+        } catch (IOException | XmlPullParserException e) {
+            Slog.e(LOG_TAG, "Caught exception while trying to save the "
+                    + "owner transfer parameters to file " + parametersFile, e);
+            parametersFile.delete();
+            atomicFile.failWrite(stream);
+        }
+    }
+
+    void deleteTransferOwnershipBundleLocked(int userId) {
+        final File parametersFile = new File(mInjector.environmentGetUserSystemDirectory(userId),
+                TRANSFER_OWNERSHIP_PARAMETERS_XML);
+        parametersFile.delete();
+    }
 }
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java b/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
index 2a23888..d2151ed 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
@@ -34,6 +34,7 @@
 import android.util.SparseArray;
 import android.util.Xml;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.FastXmlSerializer;
 
 import org.xmlpull.v1.XmlPullParser;
@@ -110,13 +111,23 @@
     private SystemUpdateInfo mSystemUpdateInfo;
 
     private final Object mLock = new Object();
+    private final Injector mInjector;
 
     public Owners(UserManager userManager,
             UserManagerInternal userManagerInternal,
             PackageManagerInternal packageManagerInternal) {
+        this(userManager, userManagerInternal, packageManagerInternal, new Injector());
+    }
+
+    @VisibleForTesting
+    Owners(UserManager userManager,
+            UserManagerInternal userManagerInternal,
+            PackageManagerInternal packageManagerInternal,
+            Injector injector) {
         mUserManager = userManager;
         mUserManagerInternal = userManagerInternal;
         mPackageManagerInternal = packageManagerInternal;
+        mInjector = injector;
     }
 
     /**
@@ -125,7 +136,7 @@
     void load() {
         synchronized (mLock) {
             // First, try to read from the legacy file.
-            final File legacy = getLegacyConfigFileWithTestOverride();
+            final File legacy = getLegacyConfigFile();
 
             final List<UserInfo> users = mUserManager.getUsers(true);
 
@@ -288,7 +299,7 @@
         }
     }
 
-    void transferDeviceOwner(ComponentName target) {
+    void transferDeviceOwnership(ComponentName target) {
         synchronized (mLock) {
             // We don't set a name because it's not used anyway.
             // See DevicePolicyManagerService#getDeviceOwnerName
@@ -642,7 +653,7 @@
     private class DeviceOwnerReadWriter extends FileReadWriter {
 
         protected DeviceOwnerReadWriter() {
-            super(getDeviceOwnerFileWithTestOverride());
+            super(getDeviceOwnerFile());
         }
 
         @Override
@@ -713,7 +724,7 @@
         private final int mUserId;
 
         ProfileOwnerReadWriter(int userId) {
-            super(getProfileOwnerFileWithTestOverride(userId));
+            super(getProfileOwnerFile(userId));
             mUserId = userId;
         }
 
@@ -870,15 +881,29 @@
         }
     }
 
-    File getLegacyConfigFileWithTestOverride() {
-        return new File(Environment.getDataSystemDirectory(), DEVICE_OWNER_XML_LEGACY);
+    @VisibleForTesting
+    File getLegacyConfigFile() {
+        return new File(mInjector.environmentGetDataSystemDirectory(), DEVICE_OWNER_XML_LEGACY);
     }
 
-    File getDeviceOwnerFileWithTestOverride() {
-        return new File(Environment.getDataSystemDirectory(), DEVICE_OWNER_XML);
+    @VisibleForTesting
+    File getDeviceOwnerFile() {
+        return new File(mInjector.environmentGetDataSystemDirectory(), DEVICE_OWNER_XML);
     }
 
-    File getProfileOwnerFileWithTestOverride(int userId) {
-        return new File(Environment.getUserSystemDirectory(userId), PROFILE_OWNER_XML);
+    @VisibleForTesting
+    File getProfileOwnerFile(int userId) {
+        return new File(mInjector.environmentGetUserSystemDirectory(userId), PROFILE_OWNER_XML);
+    }
+
+    @VisibleForTesting
+    public static class Injector {
+        File environmentGetDataSystemDirectory() {
+            return Environment.getDataSystemDirectory();
+        }
+
+        File environmentGetUserSystemDirectory(int userId) {
+            return Environment.getUserSystemDirectory(userId);
+        }
     }
 }
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/TransferOwnershipMetadataManager.java b/services/devicepolicy/java/com/android/server/devicepolicy/TransferOwnershipMetadataManager.java
new file mode 100644
index 0000000..1addeb6
--- /dev/null
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/TransferOwnershipMetadataManager.java
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.devicepolicy;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.app.admin.DevicePolicyManager;
+import android.content.ComponentName;
+import android.os.Environment;
+import android.text.TextUtils;
+import android.util.AtomicFile;
+import android.util.Slog;
+import android.util.Xml;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.util.FastXmlSerializer;
+import com.android.internal.util.Preconditions;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+import org.xmlpull.v1.XmlSerializer;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+
+/**
+ * Handles reading and writing of the owner transfer metadata file.
+ *
+ * Before we perform a device or profile owner transfer, we save this xml file with information
+ * about the current admin, target admin, user id and admin type (device owner or profile owner).
+ * After {@link DevicePolicyManager#transferOwnership} completes, we delete the file. If after
+ * device boot the file is still there, this indicates that the transfer was interrupted by a
+ * reboot.
+ *
+ * Note that this class is not thread safe.
+ */
+class TransferOwnershipMetadataManager {
+    final static String ADMIN_TYPE_DEVICE_OWNER = "device-owner";
+    final static String ADMIN_TYPE_PROFILE_OWNER = "profile-owner";
+    private final static String TAG_USER_ID = "user-id";
+    private final static String TAG_SOURCE_COMPONENT = "source-component";
+    private final static String TAG_TARGET_COMPONENT = "target-component";
+    private final static String TAG_ADMIN_TYPE = "admin-type";
+    private final static String TAG = TransferOwnershipMetadataManager.class.getName();
+    public static final String OWNER_TRANSFER_METADATA_XML = "owner-transfer-metadata.xml";
+
+    private final Injector mInjector;
+
+    TransferOwnershipMetadataManager() {
+        this(new Injector());
+    }
+
+    @VisibleForTesting
+    TransferOwnershipMetadataManager(Injector injector) {
+        mInjector = injector;
+    }
+
+    boolean saveMetadataFile(Metadata params) {
+        final File transferOwnershipMetadataFile = new File(mInjector.getOwnerTransferMetadataDir(),
+                OWNER_TRANSFER_METADATA_XML);
+        final AtomicFile atomicFile = new AtomicFile(transferOwnershipMetadataFile);
+        FileOutputStream stream = null;
+        try {
+            stream = atomicFile.startWrite();
+            final XmlSerializer serializer = new FastXmlSerializer();
+            serializer.setOutput(stream, StandardCharsets.UTF_8.name());
+            serializer.startDocument(null, true);
+            insertSimpleTag(serializer, TAG_USER_ID, Integer.toString(params.userId));
+            insertSimpleTag(serializer,
+                    TAG_SOURCE_COMPONENT, params.sourceComponent.flattenToString());
+            insertSimpleTag(serializer,
+                    TAG_TARGET_COMPONENT, params.targetComponent.flattenToString());
+            insertSimpleTag(serializer, TAG_ADMIN_TYPE, params.adminType);
+            serializer.endDocument();
+            atomicFile.finishWrite(stream);
+            return true;
+        } catch (IOException e) {
+            Slog.e(TAG, "Caught exception while trying to save Owner Transfer "
+                    + "Params to file " + transferOwnershipMetadataFile, e);
+            transferOwnershipMetadataFile.delete();
+            atomicFile.failWrite(stream);
+        }
+        return false;
+    }
+
+    private void insertSimpleTag(XmlSerializer serializer, String tagName, String value)
+            throws IOException {
+        serializer.startTag(null, tagName);
+        serializer.text(value);
+        serializer.endTag(null, tagName);
+    }
+
+    @Nullable
+    Metadata loadMetadataFile() {
+        final File transferOwnershipMetadataFile =
+                new File(mInjector.getOwnerTransferMetadataDir(), OWNER_TRANSFER_METADATA_XML);
+        if (!transferOwnershipMetadataFile.exists()) {
+            return null;
+        }
+        Slog.d(TAG, "Loading TransferOwnershipMetadataManager from "
+                + transferOwnershipMetadataFile);
+        try (FileInputStream stream = new FileInputStream(transferOwnershipMetadataFile)) {
+            final XmlPullParser parser = Xml.newPullParser();
+            parser.setInput(stream, null);
+            return parseMetadataFile(parser);
+        } catch (IOException | XmlPullParserException | IllegalArgumentException e) {
+            Slog.e(TAG, "Caught exception while trying to load the "
+                    + "owner transfer params from file " + transferOwnershipMetadataFile, e);
+        }
+        return null;
+    }
+
+    private Metadata parseMetadataFile(XmlPullParser parser)
+            throws XmlPullParserException, IOException {
+        int type;
+        final int outerDepth = parser.getDepth();
+        int userId = 0;
+        String adminComponent = null;
+        String targetComponent = null;
+        String adminType = null;
+        while ((type = parser.next()) != XmlPullParser.END_DOCUMENT
+                && (type != XmlPullParser.END_TAG || parser.getDepth() > outerDepth)) {
+            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
+                continue;
+            }
+            switch (parser.getName()) {
+                case TAG_USER_ID:
+                    parser.next();
+                    userId = Integer.parseInt(parser.getText());
+                    break;
+                case TAG_TARGET_COMPONENT:
+                    parser.next();
+                    targetComponent = parser.getText();
+                    break;
+                case TAG_SOURCE_COMPONENT:
+                    parser.next();
+                    adminComponent = parser.getText();
+                    break;
+                case TAG_ADMIN_TYPE:
+                    parser.next();
+                    adminType = parser.getText();
+                    break;
+            }
+        }
+        return new Metadata(adminComponent, targetComponent, userId, adminType);
+    }
+
+    void deleteMetadataFile() {
+        new File(mInjector.getOwnerTransferMetadataDir(), OWNER_TRANSFER_METADATA_XML).delete();
+    }
+
+    boolean metadataFileExists() {
+        return new File(mInjector.getOwnerTransferMetadataDir(),
+                OWNER_TRANSFER_METADATA_XML).exists();
+    }
+
+    static class Metadata {
+        final int userId;
+        final ComponentName sourceComponent;
+        final ComponentName targetComponent;
+        final String adminType;
+
+        Metadata(@NonNull String sourceComponent, @NonNull String targetComponent,
+                @NonNull int userId, @NonNull String adminType) {
+            this.sourceComponent = ComponentName.unflattenFromString(sourceComponent);
+            this.targetComponent = ComponentName.unflattenFromString(targetComponent);
+            Preconditions.checkNotNull(sourceComponent);
+            Preconditions.checkNotNull(targetComponent);
+            Preconditions.checkStringNotEmpty(adminType);
+            this.userId = userId;
+            this.adminType = adminType;
+        }
+
+        Metadata(@NonNull ComponentName sourceComponent, @NonNull ComponentName targetComponent,
+                @NonNull int userId, @NonNull String adminType) {
+            this(sourceComponent.flattenToString(), targetComponent.flattenToString(),
+                    userId, adminType);
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (!(obj instanceof Metadata)) {
+                return false;
+            }
+            Metadata params = (Metadata) obj;
+
+            return userId == params.userId
+                    && sourceComponent.equals(params.sourceComponent)
+                    && targetComponent.equals(params.targetComponent)
+                    && TextUtils.equals(adminType, params.adminType);
+        }
+
+        @Override
+        public int hashCode() {
+            int hashCode = 1;
+            hashCode = 31 * hashCode + userId;
+            hashCode = 31 * hashCode + sourceComponent.hashCode();
+            hashCode = 31 * hashCode + targetComponent.hashCode();
+            hashCode = 31 * hashCode + adminType.hashCode();
+            return hashCode;
+        }
+    }
+
+    @VisibleForTesting
+    static class Injector {
+        public File getOwnerTransferMetadataDir() {
+            return Environment.getDataSystemDirectory();
+        }
+    }
+}
diff --git a/services/net/java/android/net/util/MultinetworkPolicyTracker.java b/services/net/java/android/net/util/MultinetworkPolicyTracker.java
index 424e40d..30c5cd9 100644
--- a/services/net/java/android/net/util/MultinetworkPolicyTracker.java
+++ b/services/net/java/android/net/util/MultinetworkPolicyTracker.java
@@ -122,6 +122,7 @@
         return mAvoidBadWifi;
     }
 
+    // TODO: move this to MultipathPolicyTracker.
     public int getMeteredMultipathPreference() {
         return mMeteredMultipathPreference;
     }
diff --git a/services/print/java/com/android/server/print/PrintManagerService.java b/services/print/java/com/android/server/print/PrintManagerService.java
index 89a5fe1..d6cc805 100644
--- a/services/print/java/com/android/server/print/PrintManagerService.java
+++ b/services/print/java/com/android/server/print/PrintManagerService.java
@@ -22,6 +22,7 @@
 import android.annotation.NonNull;
 import android.app.ActivityManager;
 import android.app.admin.DevicePolicyManager;
+import android.app.admin.DevicePolicyManagerInternal;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
@@ -64,6 +65,7 @@
 import com.android.internal.util.DumpUtils;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.Preconditions;
+import com.android.server.LocalServices;
 import com.android.server.SystemService;
 
 import java.io.FileDescriptor;
@@ -113,12 +115,12 @@
 
         private final SparseArray<UserState> mUserStates = new SparseArray<>();
 
-        private final DevicePolicyManager mDpc;
+        private final DevicePolicyManager mDpm;
 
         PrintManagerImpl(Context context) {
             mContext = context;
             mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
-            mDpc = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
+            mDpm = (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
             registerContentObservers();
             registerBroadcastReceivers();
         }
@@ -128,7 +130,16 @@
                 PrintAttributes attributes, String packageName, int appId, int userId) {
             adapter = Preconditions.checkNotNull(adapter);
             if (!isPrintingEnabled()) {
-                final CharSequence disabledMessage = mDpc.getPrintingDisabledReason();
+                CharSequence disabledMessage = null;
+                DevicePolicyManagerInternal dpmi =
+                        LocalServices.getService(DevicePolicyManagerInternal.class);
+                final int callingUserId = UserHandle.getCallingUserId();
+                final long identity = Binder.clearCallingIdentity();
+                try {
+                    disabledMessage = dpmi.getPrintingDisabledReasonForUser(callingUserId);
+                } finally {
+                    Binder.restoreCallingIdentity(identity);
+                }
                 if (disabledMessage != null) {
                     Toast.makeText(mContext, Looper.getMainLooper(), disabledMessage,
                             Toast.LENGTH_LONG).show();
@@ -711,7 +722,7 @@
         }
 
         private boolean isPrintingEnabled() {
-            return mDpc == null || mDpc.isPrintingEnabled();
+            return mDpm == null || mDpm.isPrintingEnabled();
         }
 
         private void dump(@NonNull DualDumpOutputStream dumpStream,
diff --git a/services/robotests/Android.mk b/services/robotests/Android.mk
index ae311f8..d825533 100644
--- a/services/robotests/Android.mk
+++ b/services/robotests/Android.mk
@@ -13,9 +13,9 @@
 # limitations under the License.
 
 
-############################################################
-# FrameworksServicesLib app just for Robolectric test target.  #
-############################################################
+##############################################################
+# FrameworksServicesLib app just for Robolectric test target #
+##############################################################
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
@@ -31,14 +31,43 @@
 
 include $(BUILD_PACKAGE)
 
-#############################################
-# FrameworksServices Robolectric test target. #
-#############################################
+##############################################
+# FrameworksServices Robolectric test target #
+##############################################
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := $(call all-java-files-under, src)
+# Dependency platform-robolectric-android-all-stubs below contains a bunch of Android classes as
+# stubs that throw RuntimeExceptions when we use them. The goal is to include hidden APIs that
+# weren't included in Robolectric's Android jar files. However, we are testing the framework itself
+# here, so if we write stuff that is being used in the tests and exist in
+# platform-robolectric-android-all-stubs, the class loader is going to pick up the latter, and thus
+# we are going to test what we don't want. To solve this:
+#
+#   1. If the class being used should be visible to bundled apps:
+#      => Bypass the stubs target by including them in LOCAL_SRC_FILES and LOCAL_AIDL_INCLUDES
+#         (if aidl).
+#
+#   2. If it's not visible:
+#      => Remove the class from the stubs jar (common/robolectric/android-all/android-all-stubs.jar)
+#         and add the class path to
+#         common/robolectric/android-all/android-all-stubs_removed_classes.txt.
+#
 
-# Include the testing libraries (JUnit4 + Robolectric libs).
+INTERNAL_BACKUP := ../../core/java/com/android/internal/backup
+
+LOCAL_SRC_FILES := \
+    $(call all-java-files-under, src) \
+    $(call all-Iaidl-files-under, $(INTERNAL_BACKUP)) \
+    ../../core/java/android/content/pm/PackageInfo.java \
+    ../../core/java/android/app/backup/BackupAgent.java \
+    ../../core/java/android/app/backup/BackupDataOutput.java \
+    ../../core/java/android/app/backup/FullBackupDataOutput.java \
+    ../../core/java/android/app/IBackupAgent.aidl
+
+LOCAL_AIDL_INCLUDES := \
+    $(call all-Iaidl-files-under, $(INTERNAL_BACKUP)) \
+    ../../core/java/android/app/IBackupAgent.aidl
+
 LOCAL_STATIC_JAVA_LIBRARIES := \
     platform-robolectric-android-all-stubs \
     android-support-test \
@@ -58,9 +87,9 @@
 
 include $(BUILD_STATIC_JAVA_LIBRARY)
 
-#############################################################
-# FrameworksServices runner target to run the previous target. #
-#############################################################
+###############################################################
+# FrameworksServices runner target to run the previous target #
+###############################################################
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := RunFrameworksServicesRoboTests
diff --git a/services/robotests/src/com/android/server/backup/PerformBackupTaskTest.java b/services/robotests/src/com/android/server/backup/PerformBackupTaskTest.java
new file mode 100644
index 0000000..3668350
--- /dev/null
+++ b/services/robotests/src/com/android/server/backup/PerformBackupTaskTest.java
@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.backup;
+
+import static com.android.server.backup.testing.TransportData.backupTransport;
+import static com.android.server.backup.testing.TransportTestUtils.setUpTransport;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+import static org.robolectric.Shadows.shadowOf;
+
+import static java.util.Collections.emptyList;
+import static java.util.stream.Collectors.toCollection;
+import static java.util.stream.Collectors.toList;
+
+import android.app.Application;
+import android.app.IActivityManager;
+import android.app.IBackupAgent;
+import android.app.backup.BackupAgent;
+import android.app.backup.BackupDataOutput;
+import android.app.backup.FullBackupDataOutput;
+import android.app.backup.IBackupManager;
+import android.app.backup.IBackupManagerMonitor;
+import android.app.backup.IBackupObserver;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.os.Message;
+import android.os.PowerManager;
+import android.os.RemoteException;
+import android.platform.test.annotations.Presubmit;
+import android.util.Pair;
+import android.util.SparseArray;
+
+import com.android.internal.backup.IBackupTransport;
+import com.android.server.backup.internal.BackupHandler;
+import com.android.server.backup.internal.BackupRequest;
+import com.android.server.backup.internal.OnTaskFinishedListener;
+import com.android.server.backup.internal.PerformBackupTask;
+import com.android.server.backup.testing.TransportData;
+import com.android.server.backup.testing.TransportTestUtils.TransportMock;
+import com.android.server.backup.transport.TransportClient;
+import com.android.server.testing.FrameworkRobolectricTestRunner;
+import com.android.server.testing.SystemLoaderClasses;
+import com.android.server.testing.shadows.FrameworkShadowPackageManager;
+import com.android.server.testing.shadows.ShadowBackupDataInput;
+import com.android.server.testing.shadows.ShadowBackupDataOutput;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.ArgumentMatcher;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RuntimeEnvironment;
+import org.robolectric.annotation.Config;
+import org.robolectric.shadow.api.Shadow;
+import org.robolectric.shadows.ShadowLooper;
+import org.robolectric.shadows.ShadowPackageManager;
+import org.robolectric.shadows.ShadowQueuedWork;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+@RunWith(FrameworkRobolectricTestRunner.class)
+@Config(
+    manifest = Config.NONE,
+    sdk = 26,
+    shadows = {
+        FrameworkShadowPackageManager.class,
+        ShadowBackupDataInput.class,
+        ShadowBackupDataOutput.class,
+        ShadowQueuedWork.class
+    }
+)
+@SystemLoaderClasses({
+    PerformBackupTask.class,
+    BackupDataOutput.class,
+    FullBackupDataOutput.class,
+    TransportManager.class,
+    BackupAgent.class,
+    IBackupTransport.class,
+    IBackupAgent.class,
+    PackageInfo.class
+})
+@Presubmit
+public class PerformBackupTaskTest {
+    private static final String PACKAGE_1 = "com.example.package1";
+    private static final String PACKAGE_2 = "com.example.package2";
+
+    @Mock private RefactoredBackupManagerService mBackupManagerService;
+    @Mock private TransportManager mTransportManager;
+    @Mock private DataChangedJournal mDataChangedJournal;
+    @Mock private IBackupObserver mObserver;
+    @Mock private IBackupManagerMonitor mMonitor;
+    @Mock private OnTaskFinishedListener mListener;
+    private TransportData mTransport;
+    private IBackupTransport mTransportBinder;
+    private TransportClient mTransportClient;
+    private ShadowLooper mShadowBackupLooper;
+    private BackupHandler mBackupHandler;
+    private PowerManager.WakeLock mWakeLock;
+    private ShadowPackageManager mShadowPackageManager;
+    private FakeIBackupManager mBackupManager;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+
+        mTransport = backupTransport();
+        TransportMock transportMock = setUpTransport(mTransportManager, mTransport);
+        mTransportBinder = transportMock.transport;
+        mTransportClient = transportMock.transportClient;
+
+        Application application = RuntimeEnvironment.application;
+        File cacheDir = application.getCacheDir();
+        File baseStateDir = new File(cacheDir, "base_state_dir");
+        File dataDir = new File(cacheDir, "data_dir");
+        File stateDir = new File(baseStateDir, mTransport.transportDirName);
+        assertThat(baseStateDir.mkdir()).isTrue();
+        assertThat(dataDir.mkdir()).isTrue();
+        assertThat(stateDir.mkdir()).isTrue();
+
+        PackageManager packageManager = application.getPackageManager();
+        mShadowPackageManager = Shadow.extract(packageManager);
+
+        PowerManager powerManager =
+                (PowerManager) application.getSystemService(Context.POWER_SERVICE);
+        mWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "*backup*");
+
+        // Robolectric simulates multi-thread in a single-thread to avoid flakiness
+        HandlerThread backupThread = new HandlerThread("backup");
+        backupThread.setUncaughtExceptionHandler(
+                (t, e) -> fail("Uncaught exception " + e.getMessage()));
+        backupThread.start();
+        Looper backupLooper = backupThread.getLooper();
+        mShadowBackupLooper = shadowOf(backupLooper);
+        mBackupHandler = new BackupHandler(mBackupManagerService, backupLooper);
+
+        mBackupManager = spy(FakeIBackupManager.class);
+
+        when(mBackupManagerService.getTransportManager()).thenReturn(mTransportManager);
+        when(mBackupManagerService.getContext()).thenReturn(application);
+        when(mBackupManagerService.getPackageManager()).thenReturn(packageManager);
+        when(mBackupManagerService.getWakelock()).thenReturn(mWakeLock);
+        when(mBackupManagerService.getCurrentOpLock()).thenReturn(new Object());
+        when(mBackupManagerService.getQueueLock()).thenReturn(new Object());
+        when(mBackupManagerService.getBaseStateDir()).thenReturn(baseStateDir);
+        when(mBackupManagerService.getDataDir()).thenReturn(dataDir);
+        when(mBackupManagerService.getCurrentOperations()).thenReturn(new SparseArray<>());
+        when(mBackupManagerService.getBackupHandler()).thenReturn(mBackupHandler);
+        when(mBackupManagerService.getBackupManagerBinder()).thenReturn(mBackupManager);
+        when(mBackupManagerService.getActivityManager()).thenReturn(mock(IActivityManager.class));
+    }
+
+    @Test
+    public void testRunTask_whenTransportProvidesFlags_passesThemToTheAgent() throws Exception {
+        BackupAgent agent = setUpAgent(PACKAGE_1);
+        int flags = BackupAgent.FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED;
+        when(mTransportBinder.getTransportFlags()).thenReturn(flags);
+        PerformBackupTask task = createPerformBackupTask(emptyList(), false, true, PACKAGE_1);
+
+        runTask(task);
+
+        verify(agent).onBackup(any(), argThat(dataOutputWithTransportFlags(flags)), any());
+    }
+
+    @Test
+    public void testRunTask_whenTransportDoesNotProvidesFlags() throws Exception {
+        BackupAgent agent = setUpAgent(PACKAGE_1);
+        PerformBackupTask task = createPerformBackupTask(emptyList(), false, true, PACKAGE_1);
+
+        runTask(task);
+
+        verify(agent).onBackup(any(), argThat(dataOutputWithTransportFlags(0)), any());
+    }
+
+    @Test
+    public void testRunTask_whenTransportProvidesFlagsAndMultipleAgents_passesToAll()
+            throws Exception {
+        List<BackupAgent> agents = setUpAgents(PACKAGE_1, PACKAGE_2);
+        BackupAgent agent1 = agents.get(0);
+        BackupAgent agent2 = agents.get(1);
+        int flags = BackupAgent.FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED;
+        when(mTransportBinder.getTransportFlags()).thenReturn(flags);
+        PerformBackupTask task =
+                createPerformBackupTask(emptyList(), false, true, PACKAGE_1, PACKAGE_2);
+
+        runTask(task);
+
+        verify(agent1).onBackup(any(), argThat(dataOutputWithTransportFlags(flags)), any());
+        verify(agent2).onBackup(any(), argThat(dataOutputWithTransportFlags(flags)), any());
+    }
+
+    @Test
+    public void testRunTask_whenTransportChangeFlagsAfterTaskCreation() throws Exception {
+        BackupAgent agent = setUpAgent(PACKAGE_1);
+        PerformBackupTask task = createPerformBackupTask(emptyList(), false, true, PACKAGE_1);
+        int flags = BackupAgent.FLAG_CLIENT_SIDE_ENCRYPTION_ENABLED;
+        when(mTransportBinder.getTransportFlags()).thenReturn(flags);
+
+        runTask(task);
+
+        verify(agent).onBackup(any(), argThat(dataOutputWithTransportFlags(flags)), any());
+    }
+
+    private void runTask(PerformBackupTask task) {
+        Message message = mBackupHandler.obtainMessage(BackupHandler.MSG_BACKUP_RESTORE_STEP, task);
+        mBackupHandler.sendMessage(message);
+        while (mShadowBackupLooper.getScheduler().areAnyRunnable()) {
+            mShadowBackupLooper.runToEndOfTasks();
+        }
+    }
+
+    private List<BackupAgent> setUpAgents(String... packageNames) {
+        return Stream.of(packageNames).map(this::setUpAgent).collect(toList());
+    }
+
+    private BackupAgent setUpAgent(String packageName) {
+        PackageInfo packageInfo = new PackageInfo();
+        packageInfo.packageName = packageName;
+        packageInfo.applicationInfo = new ApplicationInfo();
+        packageInfo.applicationInfo.flags = ApplicationInfo.FLAG_ALLOW_BACKUP;
+        packageInfo.applicationInfo.backupAgentName = "BackupAgent" + packageName;
+        packageInfo.applicationInfo.packageName = packageName;
+        mShadowPackageManager.setApplicationEnabledSetting(
+                packageName, PackageManager.COMPONENT_ENABLED_STATE_ENABLED, 0);
+        mShadowPackageManager.addPackage(packageInfo);
+        BackupAgent backupAgent = spy(BackupAgent.class);
+        IBackupAgent backupAgentBinder = IBackupAgent.Stub.asInterface(backupAgent.onBind());
+        when(mBackupManagerService.bindToAgentSynchronous(
+                        eq(packageInfo.applicationInfo), anyInt()))
+                .thenReturn(backupAgentBinder);
+        return backupAgent;
+    }
+
+    private PerformBackupTask createPerformBackupTask(
+            List<String> pendingFullBackups,
+            boolean userInitiated,
+            boolean nonIncremental,
+            String... packages) {
+        ArrayList<BackupRequest> backupRequests =
+                Stream.of(packages).map(BackupRequest::new).collect(toCollection(ArrayList::new));
+        mWakeLock.acquire();
+        PerformBackupTask task =
+                new PerformBackupTask(
+                        mBackupManagerService,
+                        mTransportClient,
+                        mTransport.transportDirName,
+                        backupRequests,
+                        mDataChangedJournal,
+                        mObserver,
+                        mMonitor,
+                        mListener,
+                        pendingFullBackups,
+                        userInitiated,
+                        nonIncremental);
+        mBackupManager.setUp(mBackupHandler, task);
+        return task;
+    }
+
+    private ArgumentMatcher<BackupDataOutput> dataOutputWithTransportFlags(int flags) {
+        return dataOutput -> dataOutput.getTransportFlags() == flags;
+    }
+
+    private abstract static class FakeIBackupManager extends IBackupManager.Stub {
+        private Handler mBackupHandler;
+        private BackupRestoreTask mTask;
+
+        public FakeIBackupManager() {}
+
+        private void setUp(Handler backupHandler, BackupRestoreTask task) {
+            mBackupHandler = backupHandler;
+            mTask = task;
+        }
+
+        @Override
+        public void opComplete(int token, long result) throws RemoteException {
+            assertThat(mTask).isNotNull();
+            Message message =
+                    mBackupHandler.obtainMessage(
+                            BackupHandler.MSG_OP_COMPLETE, Pair.create(mTask, result));
+            mBackupHandler.sendMessage(message);
+        }
+    }
+}
diff --git a/services/robotests/src/com/android/server/backup/testing/TestUtils.java b/services/robotests/src/com/android/server/backup/testing/TestUtils.java
index 1be298d..407a1bc 100644
--- a/services/robotests/src/com/android/server/backup/testing/TestUtils.java
+++ b/services/robotests/src/com/android/server/backup/testing/TestUtils.java
@@ -16,11 +16,28 @@
 
 package com.android.server.backup.testing;
 
+import static com.google.common.truth.Truth.assertThat;
+
+
 import com.android.internal.util.FunctionalUtils.ThrowingRunnable;
 
+import org.robolectric.shadows.ShadowLog;
+
 import java.util.concurrent.Callable;
 
 public class TestUtils {
+    /** Reset logcat with {@link ShadowLog#reset()} before the test case */
+    public static void assertLogcatAtMost(String tag, int level) {
+        assertThat(ShadowLog.getLogsForTag(tag).stream().allMatch(logItem -> logItem.type <= level))
+                .isTrue();
+    }
+
+    /** Reset logcat with {@link ShadowLog#reset()} before the test case */
+    public static void assertLogcatAtLeast(String tag, int level) {
+        assertThat(ShadowLog.getLogsForTag(tag).stream().anyMatch(logItem -> logItem.type >= level))
+                .isTrue();
+    }
+
     /**
      * Calls {@link Runnable#run()} and returns if no exception is thrown. Otherwise, if the
      * exception is unchecked, rethrow it; if it's checked wrap in a {@link RuntimeException} and
diff --git a/services/robotests/src/com/android/server/backup/testing/TransportTestUtils.java b/services/robotests/src/com/android/server/backup/testing/TransportTestUtils.java
index e1dc7b5..565c7e6 100644
--- a/services/robotests/src/com/android/server/backup/testing/TransportTestUtils.java
+++ b/services/robotests/src/com/android/server/backup/testing/TransportTestUtils.java
@@ -144,12 +144,14 @@
                 // Transport registered and available
                 IBackupTransport transportMock = mockTransportBinder(transport);
                 when(transportClientMock.connectOrThrow(any())).thenReturn(transportMock);
+                when(transportClientMock.connect(any())).thenReturn(transportMock);
 
                 return new TransportMock(transportClientMock, transportMock);
             } else {
                 // Transport registered but unavailable
                 when(transportClientMock.connectOrThrow(any()))
                         .thenThrow(TransportNotAvailableException.class);
+                when(transportClientMock.connect(any())).thenReturn(null);
 
                 return new TransportMock(transportClientMock, null);
             }
diff --git a/services/robotests/src/com/android/server/backup/transport/TransportClientTest.java b/services/robotests/src/com/android/server/backup/transport/TransportClientTest.java
index 10442b7..db6e62f 100644
--- a/services/robotests/src/com/android/server/backup/transport/TransportClientTest.java
+++ b/services/robotests/src/com/android/server/backup/transport/TransportClientTest.java
@@ -17,7 +17,11 @@
 package com.android.server.backup.transport;
 
 import static com.android.server.backup.TransportManager.SERVICE_ACTION_TRANSPORT_HOST;
+import static com.android.server.backup.testing.TestUtils.assertLogcatAtLeast;
+import static com.android.server.backup.testing.TestUtils.assertLogcatAtMost;
+
 import static com.google.common.truth.Truth.assertThat;
+
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
@@ -25,6 +29,7 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 import static org.robolectric.Shadows.shadowOf;
+import static org.testng.Assert.expectThrows;
 
 import android.content.ComponentName;
 import android.content.Context;
@@ -34,12 +39,17 @@
 import android.os.Looper;
 import android.os.UserHandle;
 import android.platform.test.annotations.Presubmit;
+import android.util.Log;
+
 import com.android.internal.backup.IBackupTransport;
 import com.android.server.EventLogTags;
 import com.android.server.backup.TransportManager;
 import com.android.server.testing.FrameworkRobolectricTestRunner;
-import com.android.server.testing.ShadowEventLog;
 import com.android.server.testing.SystemLoaderClasses;
+import com.android.server.testing.shadows.ShadowCloseGuard;
+import com.android.server.testing.shadows.ShadowEventLog;
+import com.android.server.testing.shadows.ShadowSlog;
+
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -47,10 +57,15 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.robolectric.annotation.Config;
+import org.robolectric.shadows.ShadowLog;
 import org.robolectric.shadows.ShadowLooper;
 
 @RunWith(FrameworkRobolectricTestRunner.class)
-@Config(manifest = Config.NONE, sdk = 26, shadows = {ShadowEventLog.class})
+@Config(
+    manifest = Config.NONE,
+    sdk = 26,
+    shadows = {ShadowEventLog.class, ShadowCloseGuard.class, ShadowSlog.class}
+)
 @SystemLoaderClasses({TransportManager.class, TransportClient.class})
 @Presubmit
 public class TransportClientTest {
@@ -59,7 +74,7 @@
     @Mock private Context mContext;
     @Mock private TransportConnectionListener mTransportConnectionListener;
     @Mock private TransportConnectionListener mTransportConnectionListener2;
-    @Mock private IBackupTransport.Stub mIBackupTransport;
+    @Mock private IBackupTransport.Stub mTransportBinder;
     private TransportClient mTransportClient;
     private ComponentName mTransportComponent;
     private String mTransportString;
@@ -78,7 +93,12 @@
         mBindIntent = new Intent(SERVICE_ACTION_TRANSPORT_HOST).setComponent(mTransportComponent);
         mTransportClient =
                 new TransportClient(
-                        mContext, mBindIntent, mTransportComponent, "1", new Handler(mainLooper));
+                        mContext,
+                        mBindIntent,
+                        mTransportComponent,
+                        "1",
+                        "caller",
+                        new Handler(mainLooper));
 
         when(mContext.bindServiceAsUser(
                         eq(mBindIntent),
@@ -111,7 +131,7 @@
 
         // Simulate framework connecting
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
 
         mShadowLooper.runToEndOfTasks();
         verify(mTransportConnectionListener)
@@ -126,7 +146,7 @@
 
         mTransportClient.connectAsync(mTransportConnectionListener2, "caller2");
 
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
 
         mShadowLooper.runToEndOfTasks();
         verify(mTransportConnectionListener)
@@ -139,7 +159,7 @@
     public void testConnectAsync_whenAlreadyConnected_callsListener() throws Exception {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
 
         mTransportClient.connectAsync(mTransportConnectionListener2, "caller2");
 
@@ -180,11 +200,11 @@
     }
 
     @Test
-    public void testConnectAsync_afterServiceDisconnectedBeforeNewConnection_callsListener()
+    public void testConnectAsync_afterOnServiceDisconnectedBeforeNewConnection_callsListener()
             throws Exception {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
         connection.onServiceDisconnected(mTransportComponent);
 
         mTransportClient.connectAsync(mTransportConnectionListener2, "caller1");
@@ -194,13 +214,13 @@
     }
 
     @Test
-    public void testConnectAsync_afterServiceDisconnectedAfterNewConnection_callsListener()
+    public void testConnectAsync_afterOnServiceDisconnectedAfterNewConnection_callsListener()
             throws Exception {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
         connection.onServiceDisconnected(mTransportComponent);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
 
         mTransportClient.connectAsync(mTransportConnectionListener2, "caller1");
 
@@ -240,7 +260,7 @@
 
     @Test
     public void testConnectAsync_beforeFrameworkCall_logsBoundTransition() {
-        ShadowEventLog.clearEvents();
+        ShadowEventLog.setUp();
 
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
 
@@ -249,11 +269,11 @@
 
     @Test
     public void testConnectAsync_afterOnServiceConnected_logsBoundAndConnectedTransitions() {
-        ShadowEventLog.clearEvents();
+        ShadowEventLog.setUp();
 
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
 
         assertEventLogged(EventLogTags.BACKUP_TRANSPORT_LIFECYCLE, mTransportString, 1);
         assertEventLogged(EventLogTags.BACKUP_TRANSPORT_CONNECTION, mTransportString, 1);
@@ -261,7 +281,7 @@
 
     @Test
     public void testConnectAsync_afterOnBindingDied_logsBoundAndUnboundTransitions() {
-        ShadowEventLog.clearEvents();
+        ShadowEventLog.setUp();
 
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
@@ -275,8 +295,8 @@
     public void testUnbind_whenConnected_logsDisconnectedAndUnboundTransitions() {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
-        ShadowEventLog.clearEvents();
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        ShadowEventLog.setUp();
 
         mTransportClient.unbind("caller1");
 
@@ -288,8 +308,8 @@
     public void testOnServiceDisconnected_whenConnected_logsDisconnectedAndUnboundTransitions() {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
-        ShadowEventLog.clearEvents();
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        ShadowEventLog.setUp();
 
         connection.onServiceDisconnected(mTransportComponent);
 
@@ -301,8 +321,8 @@
     public void testOnBindingDied_whenConnected_logsDisconnectedAndUnboundTransitions() {
         mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
         ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
-        connection.onServiceConnected(mTransportComponent, mIBackupTransport);
-        ShadowEventLog.clearEvents();
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        ShadowEventLog.setUp();
 
         connection.onBindingDied(mTransportComponent);
 
@@ -310,6 +330,122 @@
         assertEventLogged(EventLogTags.BACKUP_TRANSPORT_LIFECYCLE, mTransportString, 0);
     }
 
+    @Test
+    public void testMarkAsDisposed_whenCreated() throws Throwable {
+        mTransportClient.markAsDisposed();
+
+        // No exception thrown
+    }
+
+    @Test
+    public void testMarkAsDisposed_afterOnBindingDied() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
+        connection.onBindingDied(mTransportComponent);
+
+        mTransportClient.markAsDisposed();
+
+        // No exception thrown
+    }
+
+    @Test
+    public void testMarkAsDisposed_whenConnectedAndUnbound() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        mTransportClient.unbind("caller1");
+
+        mTransportClient.markAsDisposed();
+
+        // No exception thrown
+    }
+
+    @Test
+    public void testMarkAsDisposed_afterOnServiceDisconnected() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        connection.onServiceDisconnected(mTransportComponent);
+
+        mTransportClient.markAsDisposed();
+
+        // No exception thrown
+    }
+
+    @Test
+    public void testMarkAsDisposed_whenBound() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+
+        expectThrows(RuntimeException.class, mTransportClient::markAsDisposed);
+    }
+
+    @Test
+    public void testMarkAsDisposed_whenConnected() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+
+        expectThrows(RuntimeException.class, mTransportClient::markAsDisposed);
+    }
+
+    @Test
+    @SuppressWarnings("FinalizeCalledExplicitly")
+    public void testFinalize_afterCreated() throws Throwable {
+        ShadowLog.reset();
+
+        mTransportClient.finalize();
+
+        assertLogcatAtMost(TransportClient.TAG, Log.INFO);
+    }
+
+    @Test
+    @SuppressWarnings("FinalizeCalledExplicitly")
+    public void testFinalize_whenBound() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ShadowLog.reset();
+
+        mTransportClient.finalize();
+
+        assertLogcatAtLeast(TransportClient.TAG, Log.ERROR);
+    }
+
+    @Test
+    @SuppressWarnings("FinalizeCalledExplicitly")
+    public void testFinalize_whenConnected() throws Throwable {
+        mTransportClient.connectAsync(mTransportConnectionListener, "caller1");
+        ServiceConnection connection = verifyBindServiceAsUserAndCaptureServiceConnection(mContext);
+        connection.onServiceConnected(mTransportComponent, mTransportBinder);
+        ShadowLog.reset();
+
+        mTransportClient.finalize();
+
+        expectThrows(
+                TransportNotAvailableException.class,
+                () -> mTransportClient.getConnectedTransport("caller1"));
+        assertLogcatAtLeast(TransportClient.TAG, Log.ERROR);
+    }
+
+    @Test
+    @SuppressWarnings("FinalizeCalledExplicitly")
+    public void testFinalize_whenNotMarkedAsDisposed() throws Throwable {
+        ShadowCloseGuard.setUp();
+
+        mTransportClient.finalize();
+
+        assertThat(ShadowCloseGuard.hasReported()).isTrue();
+    }
+
+    @Test
+    @SuppressWarnings("FinalizeCalledExplicitly")
+    public void testFinalize_whenMarkedAsDisposed() throws Throwable {
+        mTransportClient.markAsDisposed();
+        ShadowCloseGuard.setUp();
+
+        mTransportClient.finalize();
+
+        assertThat(ShadowCloseGuard.hasReported()).isFalse();
+    }
+
     private void assertEventLogged(int tag, Object... values) {
         assertThat(ShadowEventLog.hasEvent(tag, values)).isTrue();
     }
diff --git a/services/robotests/src/com/android/server/testing/FrameworkRobolectricTestRunner.java b/services/robotests/src/com/android/server/testing/FrameworkRobolectricTestRunner.java
index 6c7313b..c94d598 100644
--- a/services/robotests/src/com/android/server/testing/FrameworkRobolectricTestRunner.java
+++ b/services/robotests/src/com/android/server/testing/FrameworkRobolectricTestRunner.java
@@ -16,6 +16,9 @@
 
 package com.android.server.testing;
 
+import com.android.server.backup.PerformBackupTaskTest;
+import com.android.server.backup.internal.PerformBackupTask;
+
 import com.google.common.collect.ImmutableSet;
 
 import org.junit.runners.model.FrameworkMethod;
@@ -30,6 +33,9 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
+import java.nio.file.Files;
+import java.nio.file.Paths;
+import java.util.Enumeration;
 import java.util.Set;
 
 import javax.annotation.Nonnull;
@@ -115,6 +121,27 @@
         }
 
         /**
+         * HACK^2
+         * The framework Robolectric run configuration puts a prebuilt in front of us, so we try not
+         * to load the class from there, if possible.
+         */
+        @Override
+        public InputStream getResourceAsStream(String resource) {
+            try {
+                Enumeration<URL> urls = getResources(resource);
+                while (urls.hasMoreElements()) {
+                    URL url = urls.nextElement();
+                    if (!url.toString().toLowerCase().contains("prebuilt")) {
+                        return url.openStream();
+                    }
+                }
+            } catch (IOException e) {
+                // Fall through
+            }
+            return super.getResourceAsStream(resource);
+        }
+
+        /**
          * Classes like com.package.ClassName$InnerClass should also be loaded from the system class
          * loader, so we test if the classes in the annotation are prefixes of the class to load.
          */
diff --git a/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataInput.java b/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataInput.java
new file mode 100644
index 0000000..28489af
--- /dev/null
+++ b/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataInput.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.testing.shadows;
+
+import android.app.backup.BackupDataInput;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+
+@Implements(BackupDataInput.class)
+public class ShadowBackupDataInput {
+    @Implementation
+    public void __constructor__(FileDescriptor fd) {
+    }
+
+    @Implementation
+    protected void finalize() throws Throwable {
+    }
+
+    @Implementation
+    public boolean readNextHeader() throws IOException {
+        return false;
+    }
+
+    @Implementation
+    public String getKey() {
+        throw new AssertionError("Can't call because readNextHeader() returned false");
+    }
+
+    @Implementation
+    public int getDataSize() {
+        throw new AssertionError("Can't call because readNextHeader() returned false");
+    }
+
+    @Implementation
+    public int readEntityData(byte[] data, int offset, int size) throws IOException {
+        throw new AssertionError("Can't call because readNextHeader() returned false");
+    }
+
+    @Implementation
+    public void skipEntityData() throws IOException {
+        throw new AssertionError("Can't call because readNextHeader() returned false");
+    }
+}
diff --git a/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataOutput.java b/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataOutput.java
new file mode 100644
index 0000000..c7deada
--- /dev/null
+++ b/services/robotests/src/com/android/server/testing/shadows/ShadowBackupDataOutput.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.testing.shadows;
+
+import android.app.backup.BackupDataOutput;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+
+import java.io.FileDescriptor;
+import java.io.IOException;
+
+@Implements(BackupDataOutput.class)
+public class ShadowBackupDataOutput {
+    private long mQuota;
+    private int mTransportFlags;
+
+    @Implementation
+    public void __constructor__(FileDescriptor fd, long quota, int transportFlags) {
+        mQuota = quota;
+        mTransportFlags = transportFlags;
+    }
+
+    @Implementation
+    public long getQuota() {
+        return mQuota;
+    }
+
+    @Implementation
+    public int getTransportFlags() {
+        return mTransportFlags;
+    }
+
+    @Implementation
+    public int writeEntityHeader(String key, int dataSize) throws IOException {
+        return 0;
+    }
+
+    @Implementation
+    public int writeEntityData(byte[] data, int size) throws IOException {
+        return 0;
+    }
+}
diff --git a/services/robotests/src/com/android/server/testing/shadows/ShadowCloseGuard.java b/services/robotests/src/com/android/server/testing/shadows/ShadowCloseGuard.java
new file mode 100644
index 0000000..c9984bf
--- /dev/null
+++ b/services/robotests/src/com/android/server/testing/shadows/ShadowCloseGuard.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.testing.shadows;
+
+import dalvik.system.CloseGuard;
+
+import org.robolectric.annotation.Implements;
+
+@Implements(CloseGuard.class)
+public class ShadowCloseGuard {
+    private static final Reporter REPORTER = new Reporter();
+
+    public static boolean hasReported() {
+        return REPORTER.mReports > 0;
+    }
+
+    public static void setUp() {
+        // Can't do this in static {} block because shadow initialization is part of real class
+        // initialization and it happens right in the beginning. When the shadow is being
+        // initialized the class hasn't been initialized yet and it will be after the shadow. So,
+        // REPORTER field (inside CloseGuard) will be assigned *after* setReporter() is called.
+        CloseGuard.setReporter(REPORTER);
+        REPORTER.mReports = 0;
+    }
+
+    private static class Reporter implements CloseGuard.Reporter {
+        private int mReports = 0;
+
+        @Override
+        public void report(String message, Throwable allocationSite) {
+            mReports += 1;
+        }
+    }
+}
diff --git a/services/robotests/src/com/android/server/testing/ShadowEventLog.java b/services/robotests/src/com/android/server/testing/shadows/ShadowEventLog.java
similarity index 94%
rename from services/robotests/src/com/android/server/testing/ShadowEventLog.java
rename to services/robotests/src/com/android/server/testing/shadows/ShadowEventLog.java
index b8059f4..4625684 100644
--- a/services/robotests/src/com/android/server/testing/ShadowEventLog.java
+++ b/services/robotests/src/com/android/server/testing/shadows/ShadowEventLog.java
@@ -14,7 +14,7 @@
  * limitations under the License
  */
 
-package com.android.server.testing;
+package com.android.server.testing.shadows;
 
 import android.util.EventLog;
 
@@ -40,7 +40,8 @@
         return ENTRIES.contains(new Entry(tag, Arrays.asList(values)));
     }
 
-    public static void clearEvents() {
+    /** Clears the entries */
+    public static void setUp() {
         ENTRIES.clear();
     }
 
diff --git a/services/robotests/src/com/android/server/testing/shadows/ShadowSlog.java b/services/robotests/src/com/android/server/testing/shadows/ShadowSlog.java
new file mode 100644
index 0000000..bf4b61e
--- /dev/null
+++ b/services/robotests/src/com/android/server/testing/shadows/ShadowSlog.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.testing.shadows;
+
+import android.util.Log;
+import android.util.Slog;
+
+import org.robolectric.annotation.Implementation;
+import org.robolectric.annotation.Implements;
+import org.robolectric.shadows.ShadowLog;
+
+@Implements(Slog.class)
+public class ShadowSlog {
+    @Implementation
+    public static int println(int priority, String tag, String msg) {
+        return Log.println(priority, tag, msg);
+    }
+}
diff --git a/services/tests/servicestests/AndroidManifest.xml b/services/tests/servicestests/AndroidManifest.xml
index 0499bf0..372b5be 100644
--- a/services/tests/servicestests/AndroidManifest.xml
+++ b/services/tests/servicestests/AndroidManifest.xml
@@ -59,6 +59,8 @@
     <uses-permission android:name="android.permission.STATUS_BAR_SERVICE" />
     <uses-permission android:name="android.permission.ACCESS_SURFACE_FLINGER" />
     <uses-permission android:name="android.permission.READ_FRAME_BUFFER" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <!-- Uses API introduced in O (26) -->
     <uses-sdk android:minSdkVersion="1"
diff --git a/services/tests/servicestests/res/raw/active_admin_migrated.xml b/services/tests/servicestests/res/raw/active_admin_migrated.xml
new file mode 100644
index 0000000..47af30f
--- /dev/null
+++ b/services/tests/servicestests/res/raw/active_admin_migrated.xml
@@ -0,0 +1,11 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<policies setup-complete="true" provisioning-state="3">
+    <admin name="com.another.package.name/whatever.random.class">
+        <policies flags="991"/>
+        <strong-auth-unlock-timeout value="0"/>
+        <user-restrictions no_add_managed_profile="true"/>
+        <default-enabled-user-restrictions>
+            <restriction value="no_add_managed_profile"/>
+        </default-enabled-user-restrictions>
+    </admin>
+</policies>
\ No newline at end of file
diff --git a/services/tests/servicestests/res/raw/active_admin_not_migrated.xml b/services/tests/servicestests/res/raw/active_admin_not_migrated.xml
new file mode 100644
index 0000000..54eba4c
--- /dev/null
+++ b/services/tests/servicestests/res/raw/active_admin_not_migrated.xml
@@ -0,0 +1,11 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<policies setup-complete="true" provisioning-state="3">
+    <admin name="com.android.frameworks.servicestests/com.android.server.devicepolicy.DummyDeviceAdmins$Admin1">
+        <policies flags="991"/>
+        <strong-auth-unlock-timeout value="0"/>
+        <user-restrictions no_add_managed_profile="true"/>
+        <default-enabled-user-restrictions>
+            <restriction value="no_add_managed_profile"/>
+        </default-enabled-user-restrictions>
+    </admin>
+</policies>
\ No newline at end of file
diff --git a/services/tests/servicestests/res/raw/device_owner_migrated.xml b/services/tests/servicestests/res/raw/device_owner_migrated.xml
new file mode 100644
index 0000000..4ee05bf
--- /dev/null
+++ b/services/tests/servicestests/res/raw/device_owner_migrated.xml
@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<root>
+<device-owner
+    package="com.another.package.name"
+    name=""
+    component="com.another.package.name/whatever.random.class"
+    userRestrictionsMigrated="true" />
+<device-owner-context userId="0" />
+</root>
\ No newline at end of file
diff --git a/services/tests/servicestests/res/raw/device_owner_not_migrated.xml b/services/tests/servicestests/res/raw/device_owner_not_migrated.xml
new file mode 100644
index 0000000..3a532af
--- /dev/null
+++ b/services/tests/servicestests/res/raw/device_owner_not_migrated.xml
@@ -0,0 +1,9 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<root>
+<device-owner
+    package="com.android.frameworks.servicestests"
+    name=""
+    component="com.android.frameworks.servicestests/com.android.server.devicepolicy.DummyDeviceAdmins$Admin1"
+    userRestrictionsMigrated="true" />
+<device-owner-context userId="0" />
+</root>
\ No newline at end of file
diff --git a/services/tests/servicestests/res/raw/profile_owner_migrated.xml b/services/tests/servicestests/res/raw/profile_owner_migrated.xml
new file mode 100644
index 0000000..f73d2cd
--- /dev/null
+++ b/services/tests/servicestests/res/raw/profile_owner_migrated.xml
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<root>
+    <profile-owner package="com.another.package.name"
+       name="com.another.package.name"
+       component="com.another.package.name/whatever.random.class"
+       userRestrictionsMigrated="true"/>
+</root>
\ No newline at end of file
diff --git a/services/tests/servicestests/res/raw/profile_owner_not_migrated.xml b/services/tests/servicestests/res/raw/profile_owner_not_migrated.xml
new file mode 100644
index 0000000..1ce3a47
--- /dev/null
+++ b/services/tests/servicestests/res/raw/profile_owner_not_migrated.xml
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8' standalone='yes' ?>
+<root>
+    <profile-owner package="com.android.frameworks.servicestests"
+       name="com.android.frameworks.servicestests"
+       component="com.android.frameworks.servicestests/com.android.server.devicepolicy.DummyDeviceAdmins$Admin1"
+       userRestrictionsMigrated="true"/>
+</root>
\ No newline at end of file
diff --git a/services/tests/servicestests/src/com/android/server/ForceAppStandbyTrackerTest.java b/services/tests/servicestests/src/com/android/server/ForceAppStandbyTrackerTest.java
index a29e169..b68bf2d 100644
--- a/services/tests/servicestests/src/com/android/server/ForceAppStandbyTrackerTest.java
+++ b/services/tests/servicestests/src/com/android/server/ForceAppStandbyTrackerTest.java
@@ -266,7 +266,7 @@
         assertEquals(((restrictionTypes & JOBS_ONLY) != 0),
                 instance.areJobsRestricted(uid, packageName, exemptFromBatterySaver));
         assertEquals(((restrictionTypes & ALARMS_ONLY) != 0),
-                instance.areAlarmsRestricted(uid, packageName));
+                instance.areAlarmsRestricted(uid, packageName, exemptFromBatterySaver));
     }
 
     private void areRestricted(ForceAppStandbyTrackerTestable instance, int uid, String packageName,
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
index 06f138b..00e27c9 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerServiceTestable.java
@@ -60,40 +60,33 @@
      */
     public static class OwnersTestable extends Owners {
         public static final String LEGACY_FILE = "legacy.xml";
-        public static final String DEVICE_OWNER_FILE = "device_owner2.xml";
-        public static final String PROFILE_OWNER_FILE = "profile_owner.xml";
-
-        private final File mLegacyFile;
-        private final File mDeviceOwnerFile;
-        private final File mUsersDataDir;
 
         public OwnersTestable(MockSystemServices services) {
             super(services.userManager, services.userManagerInternal,
-                    services.packageManagerInternal);
-            mLegacyFile = new File(services.dataDir, LEGACY_FILE);
-            mDeviceOwnerFile = new File(services.dataDir, DEVICE_OWNER_FILE);
-            mUsersDataDir = new File(services.dataDir, "users");
+                    services.packageManagerInternal, new MockInjector(services));
         }
 
-        @Override
-        File getLegacyConfigFileWithTestOverride() {
-            return mLegacyFile;
-        }
+        static class MockInjector extends Injector {
+            private final MockSystemServices mServices;
 
-        @Override
-        File getDeviceOwnerFileWithTestOverride() {
-            return mDeviceOwnerFile;
-        }
+            private MockInjector(MockSystemServices services) {
+                mServices = services;
+            }
 
-        @Override
-        File getProfileOwnerFileWithTestOverride(int userId) {
-            final File userDir = new File(mUsersDataDir, String.valueOf(userId));
-            return new File(userDir, PROFILE_OWNER_FILE);
+            @Override
+            File environmentGetDataSystemDirectory() {
+                return mServices.dataDir;
+            }
+
+            @Override
+            File environmentGetUserSystemDirectory(int userId) {
+                return mServices.environment.getUserSystemDirectory(userId);
+            }
         }
     }
 
     public final DpmMockContext context;
-    private final MockInjector mMockInjector;
+    protected final MockInjector mMockInjector;
 
     public DevicePolicyManagerServiceTestable(MockSystemServices services, DpmMockContext context) {
         this(new MockInjector(services, context));
@@ -124,8 +117,7 @@
         }
     }
 
-
-    private static class MockInjector extends Injector {
+    static class MockInjector extends Injector {
 
         public final DpmMockContext context;
         private final MockSystemServices services;
@@ -133,7 +125,7 @@
         // Key is a pair of uri and userId
         private final Map<Pair<Uri, Integer>, ContentObserver> mContentObservers = new ArrayMap<>();
 
-        private MockInjector(MockSystemServices services, DpmMockContext context) {
+        public MockInjector(MockSystemServices services, DpmMockContext context) {
             super(context);
             this.services = services;
             this.context = context;
@@ -449,5 +441,11 @@
         void postOnSystemServerInitThreadPool(Runnable runnable) {
             runnable.run();
         }
+
+        @Override
+        public TransferOwnershipMetadataManager newTransferOwnershipMetadataManager() {
+            return new TransferOwnershipMetadataManager(
+                    new TransferOwnershipMetadataManagerTest.MockInjector());
+        }
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
index bc65df8..6b87ea9 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
@@ -50,6 +50,7 @@
 import static org.mockito.hamcrest.MockitoHamcrest.argThat;
 
 import android.Manifest.permission;
+import android.annotation.RawRes;
 import android.app.Activity;
 import android.app.Notification;
 import android.app.admin.DeviceAdminReceiver;
@@ -93,10 +94,13 @@
 
 import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
+import java.io.File;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -202,9 +206,14 @@
         setUpUserManager();
     }
 
+    private TransferOwnershipMetadataManager getMockTransferMetadataManager() {
+        return dpms.mTransferOwnershipMetadataManager;
+    }
+
     @Override
     protected void tearDown() throws Exception {
         flushTasks();
+        getMockTransferMetadataManager().deleteMetadataFile();
         super.tearDown();
     }
 
@@ -4835,6 +4844,176 @@
                     AttestationUtils.ID_TYPE_MEID});
     }
 
+    public void testRevertDeviceOwnership_noMetadataFile() throws Exception {
+        setDeviceOwner();
+        initializeDpms();
+        assertFalse(getMockTransferMetadataManager().metadataFileExists());
+        assertTrue(dpms.isDeviceOwner(admin1, UserHandle.USER_SYSTEM));
+        assertTrue(dpms.isAdminActive(admin1, UserHandle.USER_SYSTEM));
+    }
+
+    public void testRevertDeviceOwnership_adminAndDeviceMigrated() throws Exception {
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_migrated),
+                getDeviceOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.device_owner_migrated),
+                getDeviceOwnerFile());
+        assertDeviceOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    public void testRevertDeviceOwnership_deviceNotMigrated()
+            throws Exception {
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_migrated),
+                getDeviceOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.device_owner_not_migrated),
+                getDeviceOwnerFile());
+        assertDeviceOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    public void testRevertDeviceOwnership_adminAndDeviceNotMigrated()
+            throws Exception {
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_not_migrated),
+                getDeviceOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.device_owner_not_migrated),
+                getDeviceOwnerFile());
+        assertDeviceOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    public void testRevertProfileOwnership_noMetadataFile() throws Exception {
+        setupProfileOwner();
+        initializeDpms();
+        assertFalse(getMockTransferMetadataManager().metadataFileExists());
+        assertTrue(dpms.isProfileOwner(admin1, DpmMockContext.CALLER_USER_HANDLE));
+        assertTrue(dpms.isAdminActive(admin1, DpmMockContext.CALLER_USER_HANDLE));
+        UserHandle userHandle = UserHandle.of(DpmMockContext.CALLER_USER_HANDLE);
+    }
+
+    public void testRevertProfileOwnership_adminAndProfileMigrated() throws Exception {
+        getServices().addUser(DpmMockContext.CALLER_USER_HANDLE, UserInfo.FLAG_MANAGED_PROFILE,
+                UserHandle.USER_SYSTEM);
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_migrated),
+                getProfileOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.profile_owner_migrated),
+                getProfileOwnerFile());
+        assertProfileOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    public void testRevertProfileOwnership_profileNotMigrated() throws Exception {
+        getServices().addUser(DpmMockContext.CALLER_USER_HANDLE, UserInfo.FLAG_MANAGED_PROFILE,
+                UserHandle.USER_SYSTEM);
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_migrated),
+                getProfileOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.profile_owner_not_migrated),
+                getProfileOwnerFile());
+        assertProfileOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    public void testRevertProfileOwnership_adminAndProfileNotMigrated() throws Exception {
+        getServices().addUser(DpmMockContext.CALLER_USER_HANDLE, UserInfo.FLAG_MANAGED_PROFILE,
+                UserHandle.USER_SYSTEM);
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.active_admin_not_migrated),
+                getProfileOwnerPoliciesFile());
+        DpmTestUtils.writeInputStreamToFile(
+                getRawStream(com.android.frameworks.servicestests.R.raw.profile_owner_not_migrated),
+                getProfileOwnerFile());
+        assertProfileOwnershipRevertedWithFakeTransferMetadata();
+    }
+
+    // admin1 is the outgoing DPC, adminAnotherPakcage is the incoming one.
+    private void assertDeviceOwnershipRevertedWithFakeTransferMetadata() throws Exception {
+        writeFakeTransferMetadataFile(UserHandle.USER_SYSTEM,
+                TransferOwnershipMetadataManager.ADMIN_TYPE_DEVICE_OWNER);
+
+        final long ident = mServiceContext.binder.clearCallingIdentity();
+        setUpPackageManagerForAdmin(admin1, DpmMockContext.CALLER_SYSTEM_USER_UID);
+        setUpPackageManagerForFakeAdmin(adminAnotherPackage,
+                DpmMockContext.CALLER_SYSTEM_USER_UID, admin1);
+        // To simulate a reboot, we just reinitialize dpms and call systemReady
+        initializeDpms();
+
+        assertTrue(dpm.isDeviceOwnerApp(admin1.getPackageName()));
+        assertFalse(dpm.isDeviceOwnerApp(adminAnotherPackage.getPackageName()));
+        assertFalse(dpm.isAdminActive(adminAnotherPackage));
+        assertTrue(dpm.isAdminActive(admin1));
+        assertTrue(dpm.isDeviceOwnerAppOnCallingUser(admin1.getPackageName()));
+        assertEquals(admin1, dpm.getDeviceOwnerComponentOnCallingUser());
+
+        assertTrue(dpm.isDeviceOwnerAppOnAnyUser(admin1.getPackageName()));
+        assertEquals(admin1, dpm.getDeviceOwnerComponentOnAnyUser());
+        assertEquals(UserHandle.USER_SYSTEM, dpm.getDeviceOwnerUserId());
+        assertFalse(getMockTransferMetadataManager().metadataFileExists());
+
+        mServiceContext.binder.restoreCallingIdentity(ident);
+    }
+
+    // admin1 is the outgoing DPC, adminAnotherPakcage is the incoming one.
+    private void assertProfileOwnershipRevertedWithFakeTransferMetadata() throws Exception {
+        writeFakeTransferMetadataFile(DpmMockContext.CALLER_USER_HANDLE,
+                TransferOwnershipMetadataManager.ADMIN_TYPE_PROFILE_OWNER);
+
+        int uid = UserHandle.getUid(DpmMockContext.CALLER_USER_HANDLE,
+                DpmMockContext.CALLER_SYSTEM_USER_UID);
+        setUpPackageManagerForAdmin(admin1, uid);
+        setUpPackageManagerForFakeAdmin(adminAnotherPackage, uid, admin1);
+        // To simulate a reboot, we just reinitialize dpms and call systemReady
+        initializeDpms();
+
+        assertTrue(dpm.isProfileOwnerApp(admin1.getPackageName()));
+        assertTrue(dpm.isAdminActive(admin1));
+        assertFalse(dpm.isProfileOwnerApp(adminAnotherPackage.getPackageName()));
+        assertFalse(dpm.isAdminActive(adminAnotherPackage));
+        assertEquals(dpm.getProfileOwnerAsUser(DpmMockContext.CALLER_USER_HANDLE), admin1);
+        assertFalse(getMockTransferMetadataManager().metadataFileExists());
+    }
+
+    private void writeFakeTransferMetadataFile(int callerUserHandle, String adminType) {
+        TransferOwnershipMetadataManager metadataManager = getMockTransferMetadataManager();
+        metadataManager.deleteMetadataFile();
+
+        final TransferOwnershipMetadataManager.Metadata metadata =
+                new TransferOwnershipMetadataManager.Metadata(
+                        admin1.flattenToString(), adminAnotherPackage.flattenToString(),
+                        callerUserHandle,
+                        adminType);
+        metadataManager.saveMetadataFile(metadata);
+    }
+
+    private File getDeviceOwnerFile() {
+        return dpms.mOwners.getDeviceOwnerFile();
+    }
+
+    private File getProfileOwnerFile() {
+        return dpms.mOwners.getProfileOwnerFile(DpmMockContext.CALLER_USER_HANDLE);
+    }
+
+    private File getProfileOwnerPoliciesFile() {
+        File parentDir = dpms.mMockInjector.environmentGetUserSystemDirectory(
+                DpmMockContext.CALLER_USER_HANDLE);
+        return getPoliciesFile(parentDir);
+    }
+
+    private File getDeviceOwnerPoliciesFile() {
+        return getPoliciesFile(getServices().systemUserDataDir);
+    }
+
+    private File getPoliciesFile(File parentDir) {
+        return new File(parentDir, "device_policies.xml");
+    }
+
+    private InputStream getRawStream(@RawRes int id) {
+        return mRealTestContext.getResources().openRawResource(id);
+    }
+
     private void setUserSetupCompleteForUser(boolean isUserSetupComplete, int userhandle) {
         when(getServices().settings.settingsSecureGetIntForUser(Settings.Secure.USER_SETUP_COMPLETE, 0,
                 userhandle)).thenReturn(isUserSetupComplete ? 1 : 0);
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DpmTestUtils.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DpmTestUtils.java
index cceb2d2..2882b88 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DpmTestUtils.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DpmTestUtils.java
@@ -16,9 +16,6 @@
 
 package com.android.server.devicepolicy;
 
-import com.google.android.collect.Lists;
-import com.google.android.collect.Sets;
-
 import android.content.Context;
 import android.os.Bundle;
 import android.os.FileUtils;
@@ -28,21 +25,25 @@
 import android.util.Log;
 import android.util.Printer;
 
+import libcore.io.Streams;
+
+import com.google.android.collect.Lists;
+
+import junit.framework.AssertionFailedError;
+
 import org.junit.Assert;
 
 import java.io.BufferedReader;
 import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
 import java.io.FileWriter;
 import java.io.IOException;
+import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
-import java.util.Objects;
-import java.util.Set;
-
-import junit.framework.AssertionFailedError;
 
 public class DpmTestUtils extends AndroidTestCase {
     public static void clearDir(File dir) {
@@ -136,6 +137,11 @@
         }
     }
 
+    public static void writeInputStreamToFile(InputStream stream, File file)
+            throws IOException {
+        Streams.copy(stream, new FileOutputStream(file));
+    }
+
     private static boolean checkAssertRestrictions(Bundle a, Bundle b) {
         try {
             assertRestrictions(a, b);
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/OwnersTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/OwnersTest.java
index 85835f7..cb6a747 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/OwnersTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/OwnersTest.java
@@ -42,21 +42,21 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test01/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
             // File was empty, so no new files should be created.
-            assertFalse(owners.getDeviceOwnerFileWithTestOverride().exists());
+            assertFalse(owners.getDeviceOwnerFile().exists());
 
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(21).exists());
+            assertFalse(owners.getProfileOwnerFile(10).exists());
+            assertFalse(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
+            assertFalse(owners.getProfileOwnerFile(21).exists());
 
             assertFalse(owners.hasDeviceOwner());
             assertEquals(UserHandle.USER_NULL, owners.getDeviceOwnerUserId());
@@ -95,20 +95,20 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test02/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
-            assertTrue(owners.getDeviceOwnerFileWithTestOverride().exists()); // TODO Check content
+            assertTrue(owners.getDeviceOwnerFile().exists()); // TODO Check content
 
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(21).exists());
+            assertFalse(owners.getProfileOwnerFile(10).exists());
+            assertFalse(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
+            assertFalse(owners.getProfileOwnerFile(21).exists());
 
             assertTrue(owners.hasDeviceOwner());
             assertEquals(null, owners.getDeviceOwnerName());
@@ -153,20 +153,20 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test03/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
-            assertFalse(owners.getDeviceOwnerFileWithTestOverride().exists());
+            assertFalse(owners.getDeviceOwnerFile().exists());
 
-            assertTrue(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertTrue(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(21).exists());
+            assertTrue(owners.getProfileOwnerFile(10).exists());
+            assertTrue(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
+            assertFalse(owners.getProfileOwnerFile(21).exists());
 
             assertFalse(owners.hasDeviceOwner());
             assertEquals(UserHandle.USER_NULL, owners.getDeviceOwnerUserId());
@@ -231,20 +231,20 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test04/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
-            assertTrue(owners.getDeviceOwnerFileWithTestOverride().exists());
+            assertTrue(owners.getDeviceOwnerFile().exists());
 
-            assertTrue(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertTrue(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(21).exists());
+            assertTrue(owners.getProfileOwnerFile(10).exists());
+            assertTrue(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
+            assertFalse(owners.getProfileOwnerFile(21).exists());
 
             assertTrue(owners.hasDeviceOwner());
             assertEquals(null, owners.getDeviceOwnerName());
@@ -341,20 +341,20 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test05/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
             // Note device initializer is no longer supported.  No need to write the DO file.
-            assertFalse(owners.getDeviceOwnerFileWithTestOverride().exists());
+            assertFalse(owners.getDeviceOwnerFile().exists());
 
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
+            assertFalse(owners.getProfileOwnerFile(10).exists());
+            assertFalse(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
 
             assertFalse(owners.hasDeviceOwner());
             assertEquals(UserHandle.USER_NULL, owners.getDeviceOwnerUserId());
@@ -397,19 +397,19 @@
         {
             final OwnersTestable owners = new OwnersTestable(getServices());
 
-            DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+            DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                     DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test06/input.xml"));
 
             owners.load();
 
             // The legacy file should be removed.
-            assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+            assertFalse(owners.getLegacyConfigFile().exists());
 
-            assertTrue(owners.getDeviceOwnerFileWithTestOverride().exists());
+            assertTrue(owners.getDeviceOwnerFile().exists());
 
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(10).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(11).exists());
-            assertFalse(owners.getProfileOwnerFileWithTestOverride(20).exists());
+            assertFalse(owners.getProfileOwnerFile(10).exists());
+            assertFalse(owners.getProfileOwnerFile(11).exists());
+            assertFalse(owners.getProfileOwnerFile(20).exists());
 
             assertFalse(owners.hasDeviceOwner());
             assertEquals(UserHandle.USER_NULL, owners.getDeviceOwnerUserId());
@@ -451,16 +451,16 @@
         final OwnersTestable owners = new OwnersTestable(getServices());
 
         // First, migrate to create new-style config files.
-        DpmTestUtils.writeToFile(owners.getLegacyConfigFileWithTestOverride(),
+        DpmTestUtils.writeToFile(owners.getLegacyConfigFile(),
                 DpmTestUtils.readAsset(mRealTestContext, "OwnersTest/test04/input.xml"));
 
         owners.load();
 
-        assertFalse(owners.getLegacyConfigFileWithTestOverride().exists());
+        assertFalse(owners.getLegacyConfigFile().exists());
 
-        assertTrue(owners.getDeviceOwnerFileWithTestOverride().exists());
-        assertTrue(owners.getProfileOwnerFileWithTestOverride(10).exists());
-        assertTrue(owners.getProfileOwnerFileWithTestOverride(11).exists());
+        assertTrue(owners.getDeviceOwnerFile().exists());
+        assertTrue(owners.getProfileOwnerFile(10).exists());
+        assertTrue(owners.getProfileOwnerFile(11).exists());
 
         // Then clear all information and save.
         owners.clearDeviceOwner();
@@ -475,8 +475,8 @@
         owners.writeProfileOwner(21);
 
         // Now all files should be removed.
-        assertFalse(owners.getDeviceOwnerFileWithTestOverride().exists());
-        assertFalse(owners.getProfileOwnerFileWithTestOverride(10).exists());
-        assertFalse(owners.getProfileOwnerFileWithTestOverride(11).exists());
+        assertFalse(owners.getDeviceOwnerFile().exists());
+        assertFalse(owners.getProfileOwnerFile(10).exists());
+        assertFalse(owners.getProfileOwnerFile(11).exists());
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/TransferOwnershipMetadataManagerTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/TransferOwnershipMetadataManagerTest.java
new file mode 100644
index 0000000..03cabb2
--- /dev/null
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/TransferOwnershipMetadataManagerTest.java
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.devicepolicy;
+
+import static com.android.server.devicepolicy.TransferOwnershipMetadataManager.ADMIN_TYPE_DEVICE_OWNER;
+
+
+import static com.android.server.devicepolicy.TransferOwnershipMetadataManager
+        .OWNER_TRANSFER_METADATA_XML;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import android.os.Environment;
+import android.support.test.runner.AndroidJUnit4;
+
+import com.android.server.devicepolicy.TransferOwnershipMetadataManager.Injector;
+import com.android.server.devicepolicy.TransferOwnershipMetadataManager.Metadata;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+/**
+* Unit tests for {@link TransferOwnershipMetadataManager}.
+ *
+ * bit FrameworksServicesTests:com.android.server.devicepolicy.TransferOwnershipMetadataManagerTest
+ * runtest -x frameworks/base/services/tests/servicestests/src/com/android/server/devicepolicy/TransferOwnershipMetadataManagerTest.java
+* */
+
+@RunWith(AndroidJUnit4.class)
+public class TransferOwnershipMetadataManagerTest {
+    private final static String ADMIN_PACKAGE = "com.dummy.admin.package";
+    private final static String TARGET_PACKAGE = "com.dummy.target.package";
+    private final static int USER_ID = 123;
+    private final static Metadata TEST_PARAMS = new Metadata(ADMIN_PACKAGE,
+            TARGET_PACKAGE, USER_ID, ADMIN_TYPE_DEVICE_OWNER);
+
+    private MockInjector mMockInjector;
+
+    @Before
+    public void setUp() {
+        mMockInjector = new MockInjector();
+        getOwnerTransferParams().deleteMetadataFile();
+    }
+
+    @Test
+    public void testSave() {
+        TransferOwnershipMetadataManager paramsManager = getOwnerTransferParams();
+        assertTrue(paramsManager.saveMetadataFile(TEST_PARAMS));
+        assertTrue(paramsManager.metadataFileExists());
+    }
+
+    @Test
+    public void testFileContentValid() {
+        TransferOwnershipMetadataManager paramsManager = getOwnerTransferParams();
+        assertTrue(paramsManager.saveMetadataFile(TEST_PARAMS));
+        Path path = Paths.get(new File(mMockInjector.getOwnerTransferMetadataDir(),
+                OWNER_TRANSFER_METADATA_XML).getAbsolutePath());
+        try {
+            String contents = new String(Files.readAllBytes(path), Charset.forName("UTF-8"));
+            assertEquals(
+                "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n"
+                    + "<user-id>" + USER_ID + "</user-id>\n"
+                    + "<admin-component>" + ADMIN_PACKAGE + "</admin-component>\n"
+                    + "<target-component>" + TARGET_PACKAGE + "</target-component>\n"
+                    + "<admin-type>" + ADMIN_TYPE_DEVICE_OWNER + "</admin-type>\n",
+                contents);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Test
+    public void testLoad() {
+        TransferOwnershipMetadataManager paramsManager = getOwnerTransferParams();
+        paramsManager.saveMetadataFile(TEST_PARAMS);
+        assertEquals(TEST_PARAMS, paramsManager.loadMetadataFile());
+    }
+
+    @Test
+    public void testDelete() {
+        TransferOwnershipMetadataManager paramsManager = getOwnerTransferParams();
+        paramsManager.saveMetadataFile(TEST_PARAMS);
+        paramsManager.deleteMetadataFile();
+        assertFalse(paramsManager.metadataFileExists());
+    }
+
+    @After
+    public void tearDown() {
+        getOwnerTransferParams().deleteMetadataFile();
+    }
+
+    private TransferOwnershipMetadataManager getOwnerTransferParams() {
+        return new TransferOwnershipMetadataManager(mMockInjector);
+    }
+
+    static class MockInjector extends Injector {
+        @Override
+        public File getOwnerTransferMetadataDir() {
+            return Environment.getExternalStorageDirectory();
+        }
+    }
+
+}
diff --git a/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java b/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
index 9e7ef65..fb25cf3 100644
--- a/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
+++ b/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
@@ -281,6 +281,68 @@
         assertNull(physical);
     }
 
+    @Test
+    public void testStrategiesAdaptToUserDataPoint() {
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_NITS,
+                DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        assertStrategyAdaptsToUserDataPoints(BrightnessMappingStrategy.create(res));
+        res = createResources(LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT);
+        assertStrategyAdaptsToUserDataPoints(BrightnessMappingStrategy.create(res));
+    }
+
+    private static void assertStrategyAdaptsToUserDataPoints(BrightnessMappingStrategy strategy) {
+        // Save out all of the initial brightness data for comparison after reset.
+        float[] initialBrightnessLevels = new float[LUX_LEVELS.length];
+        for (int i = 0; i < LUX_LEVELS.length; i++) {
+            initialBrightnessLevels[i] = strategy.getBrightness(LUX_LEVELS[i]);
+        }
+
+        // Add a data point in the middle of the curve where the user has set the brightness max
+        final int idx = LUX_LEVELS.length / 2;
+        strategy.addUserDataPoint(LUX_LEVELS[idx], 1.0f);
+
+        // Then make sure that all control points after the middle lux level are also set to max...
+        for (int i = idx; i < LUX_LEVELS.length; i++) {
+            assertEquals(strategy.getBrightness(LUX_LEVELS[idx]), 1.0, 0.01 /*tolerance*/);
+        }
+
+        // ...and that all control points before the middle lux level are strictly less than the
+        // previous one still.
+        float prevBrightness = strategy.getBrightness(LUX_LEVELS[idx]);
+        for (int i = idx - 1; i >= 0; i--) {
+            float brightness = strategy.getBrightness(LUX_LEVELS[i]);
+            assertTrue("Brightness levels must be monotonic after adapting to user data",
+                    prevBrightness >= brightness);
+            prevBrightness = brightness;
+        }
+
+        // Now reset the curve and make sure we go back to the initial brightness levels recorded
+        // before adding the user data point.
+        strategy.clearUserDataPoints();
+        for (int i = 0; i < LUX_LEVELS.length; i++) {
+            assertEquals(initialBrightnessLevels[i], strategy.getBrightness(LUX_LEVELS[i]),
+                    0.01 /*tolerance*/);
+        }
+
+        // Now set the middle of the lux range to something just above the minimum.
+        final float minBrightness = strategy.getBrightness(LUX_LEVELS[0]);
+        strategy.addUserDataPoint(LUX_LEVELS[idx], minBrightness + 0.01f);
+
+        // Then make sure the curve is still monotonic.
+        prevBrightness = 0f;
+        for (float lux : LUX_LEVELS) {
+            float brightness = strategy.getBrightness(lux);
+            assertTrue("Brightness levels must be monotonic after adapting to user data",
+                    prevBrightness <= brightness);
+            prevBrightness = brightness;
+        }
+
+        // And that the lowest lux level still gives the absolute minimum brightness. This should
+        // be true assuming that there are more than two lux levels in the curve since we picked a
+        // brightness just barely above the minimum for the middle of the curve.
+        assertEquals(minBrightness, strategy.getBrightness(LUX_LEVELS[0]), 0.001 /*tolerance*/);
+    }
+
     private static float[] toFloatArray(int[] vals) {
         float[] newVals = new float[vals.length];
         for (int i = 0; i < vals.length; i++) {
diff --git a/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java b/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
index 5c7348c..c491601 100644
--- a/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/PackageParserTest.java
@@ -195,7 +195,6 @@
         assertEquals(a.installLocation, b.installLocation);
         assertEquals(a.coreApp, b.coreApp);
         assertEquals(a.mRequiredForAllUsers, b.mRequiredForAllUsers);
-        assertEquals(a.mTrustedOverlay, b.mTrustedOverlay);
         assertEquals(a.mCompileSdkVersion, b.mCompileSdkVersion);
         assertEquals(a.mCompileSdkVersionCodename, b.mCompileSdkVersionCodename);
         assertEquals(a.use32bitAbi, b.use32bitAbi);
@@ -429,7 +428,6 @@
         pkg.installLocation = 100;
         pkg.coreApp = true;
         pkg.mRequiredForAllUsers = true;
-        pkg.mTrustedOverlay = true;
         pkg.use32bitAbi = true;
         pkg.packageName = "foo";
         pkg.splitNames = new String[] { "foo2" };
diff --git a/services/usb/Android.bp b/services/usb/Android.bp
index 0cd9ac3..feb7b76 100644
--- a/services/usb/Android.bp
+++ b/services/usb/Android.bp
@@ -10,5 +10,6 @@
     static_libs: [
         "android.hardware.usb-V1.0-java",
         "android.hardware.usb-V1.1-java",
+        "android.hardware.usb.gadget-V1.0-java",
     ],
 }
diff --git a/services/usb/java/com/android/server/usb/UsbDeviceManager.java b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
index 4a7072d..e3e5e3e 100644
--- a/services/usb/java/com/android/server/usb/UsbDeviceManager.java
+++ b/services/usb/java/com/android/server/usb/UsbDeviceManager.java
@@ -41,13 +41,21 @@
 import android.hardware.usb.UsbManager;
 import android.hardware.usb.UsbPort;
 import android.hardware.usb.UsbPortStatus;
+import android.hardware.usb.gadget.V1_0.GadgetFunction;
+import android.hardware.usb.gadget.V1_0.IUsbGadget;
+import android.hardware.usb.gadget.V1_0.IUsbGadgetCallback;
+import android.hardware.usb.gadget.V1_0.Status;
+import android.hidl.manager.V1_0.IServiceManager;
+import android.hidl.manager.V1_0.IServiceNotification;
 import android.os.BatteryManager;
 import android.os.Environment;
 import android.os.FileUtils;
 import android.os.Handler;
+import android.os.HwBinder;
 import android.os.Looper;
 import android.os.Message;
 import android.os.ParcelFileDescriptor;
+import android.os.RemoteException;
 import android.os.SystemClock;
 import android.os.SystemProperties;
 import android.os.UEventObserver;
@@ -75,8 +83,10 @@
 import java.util.Iterator;
 import java.util.Locale;
 import java.util.Map;
+import java.util.NoSuchElementException;
 import java.util.Scanner;
 import java.util.Set;
+import java.util.StringJoiner;
 
 /**
  * UsbDeviceManager manages USB state in device mode.
@@ -87,22 +97,6 @@
     private static final boolean DEBUG = false;
 
     /**
-     * The persistent property which stores whether adb is enabled or not.
-     * May also contain vendor-specific default functions for testing purposes.
-     */
-    private static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";
-
-    /**
-     * The non-persistent property which stores the current USB settings.
-     */
-    private static final String USB_CONFIG_PROPERTY = "sys.usb.config";
-
-    /**
-     * The non-persistent property which stores the current USB actual state.
-     */
-    private static final String USB_STATE_PROPERTY = "sys.usb.state";
-
-    /**
      * The SharedPreference setting per user that stores the screen unlocked functions between
      * sessions.
      */
@@ -142,6 +136,10 @@
     private static final int MSG_LOCALE_CHANGED = 11;
     private static final int MSG_SET_SCREEN_UNLOCKED_FUNCTIONS = 12;
     private static final int MSG_UPDATE_SCREEN_LOCK = 13;
+    private static final int MSG_SET_CHARGING_FUNCTIONS = 14;
+    private static final int MSG_SET_FUNCTIONS_TIMEOUT = 15;
+    private static final int MSG_GET_CURRENT_USB_FUNCTIONS = 16;
+    private static final int MSG_FUNCTION_SWITCH_TIMEOUT = 17;
 
     private static final int AUDIO_MODE_SOURCE = 1;
 
@@ -157,9 +155,9 @@
     private static final String BOOT_MODE_PROPERTY = "ro.bootmode";
 
     private static final String ADB_NOTIFICATION_CHANNEL_ID_TV = "usbdevicemanager.adb.tv";
-
     private UsbHandler mHandler;
     private boolean mBootCompleted;
+    private boolean mSystemReady;
 
     private final Object mLock = new Object();
 
@@ -175,7 +173,6 @@
     private boolean mMidiEnabled;
     private int mMidiCard;
     private int mMidiDevice;
-    private HashMap<String, HashMap<String, Pair<String, String>>> mOemModeMap;
     private String[] mAccessoryStrings;
     private UsbDebuggingManager mDebuggingManager;
     private final UsbAlsaManager mUsbAlsaManager;
@@ -267,9 +264,27 @@
         mHasUsbAccessory = pm.hasSystemFeature(PackageManager.FEATURE_USB_ACCESSORY);
         initRndisAddress();
 
-        readOemUsbOverrideConfig();
+        boolean halNotPresent = false;
+        try {
+            IUsbGadget.getService(true);
+        } catch (RemoteException e) {
+            Slog.e(TAG, "USB GADGET HAL present but exception thrown", e);
+        } catch (NoSuchElementException e) {
+            halNotPresent = true;
+            Slog.i(TAG, "USB GADGET HAL not present in the device", e);
+        }
 
-        mHandler = new UsbHandler(FgThread.get().getLooper());
+        if (halNotPresent) {
+            /**
+             * Initialze the legacy UsbHandler
+             */
+            mHandler = new UsbHandlerLegacy(FgThread.get().getLooper(), mContext);
+        } else {
+            /**
+             * Initialize HAL based UsbHandler
+             */
+            mHandler = new UsbHandlerHal(FgThread.get().getLooper());
+        }
 
         if (nativeIsStartRequested()) {
             if (DEBUG) Slog.d(TAG, "accessory attached at boot");
@@ -367,15 +382,6 @@
         massStorageSupported = primary != null && primary.allowMassStorage();
         mUseUsbNotification = !massStorageSupported && mContext.getResources().getBoolean(
                 com.android.internal.R.bool.config_usbChargingMessage);
-
-        // make sure the ADB_ENABLED setting value matches the current state
-        try {
-            Settings.Global.putInt(mContentResolver,
-                    Settings.Global.ADB_ENABLED, mAdbEnabled ? 1 : 0);
-        } catch (SecurityException e) {
-            // If UserManager.DISALLOW_DEBUGGING_FEATURES is on, that this setting can't be changed.
-            Slog.d(TAG, "ADB_ENABLED is restricted.");
-        }
         mHandler.sendEmptyMessage(MSG_SYSTEM_READY);
     }
 
@@ -457,7 +463,7 @@
         return context.getSharedPreferences(prefsFile, Context.MODE_PRIVATE);
     }
 
-    private final class UsbHandler extends Handler {
+    private abstract class UsbHandler extends Handler {
 
         // current USB state
         private boolean mConnected;
@@ -465,78 +471,53 @@
         private boolean mSourcePower;
         private boolean mSinkPower;
         private boolean mConfigured;
-        private boolean mUsbDataUnlocked;
+        protected boolean mUsbDataUnlocked;
         private boolean mAudioAccessoryConnected;
         private boolean mAudioAccessorySupported;
-        private String mCurrentFunctions;
-        private boolean mCurrentFunctionsApplied;
+        protected String mCurrentFunctions;
+        protected boolean mCurrentFunctionsApplied;
         private UsbAccessory mCurrentAccessory;
         private int mUsbNotificationId;
         private boolean mAdbNotificationShown;
         private int mCurrentUser;
         private boolean mUsbCharging;
-        private String mCurrentOemFunctions;
         private boolean mHideUsbNotification;
         private boolean mSupportsAllCombinations;
         private String mScreenUnlockedFunctions = UsbManager.USB_FUNCTION_NONE;
         private boolean mScreenLocked;
+        protected boolean mCurrentUsbFunctionsRequested;
+        protected boolean mCurrentUsbFunctionsReceived;
+
+        /**
+         * The persistent property which stores whether adb is enabled or not.
+         * May also contain vendor-specific default functions for testing purposes.
+         */
+        protected static final String USB_PERSISTENT_CONFIG_PROPERTY = "persist.sys.usb.config";
 
         public UsbHandler(Looper looper) {
             super(looper);
-            try {
-                // Restore default functions.
 
-                mCurrentOemFunctions = SystemProperties.get(UsbDeviceManager.getPersistProp(false),
-                        UsbManager.USB_FUNCTION_NONE);
-                if (isNormalBoot()) {
-                    mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY,
-                            UsbManager.USB_FUNCTION_NONE);
-                    mCurrentFunctionsApplied = mCurrentFunctions.equals(
-                            SystemProperties.get(USB_STATE_PROPERTY));
-                } else {
-                    mCurrentFunctions = SystemProperties.get(getPersistProp(true),
-                            UsbManager.USB_FUNCTION_NONE);
-                    mCurrentFunctionsApplied = SystemProperties.get(USB_CONFIG_PROPERTY,
-                            UsbManager.USB_FUNCTION_NONE).equals(
-                            SystemProperties.get(USB_STATE_PROPERTY));
-                }
+            mCurrentUser = ActivityManager.getCurrentUser();
+            mScreenLocked = true;
 
-                mCurrentUser = ActivityManager.getCurrentUser();
-                mScreenLocked = true;
+            /*
+             * Use the normal bootmode persistent prop to maintain state of adb across
+             * all boot modes.
+             */
+            mAdbEnabled = UsbManager.containsFunction(
+                    SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY),
+                    UsbManager.USB_FUNCTION_ADB);
 
-                /*
-                 * Use the normal bootmode persistent prop to maintain state of adb across
-                 * all boot modes.
-                 */
-                mAdbEnabled = UsbManager.containsFunction(
-                        SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY),
-                        UsbManager.USB_FUNCTION_ADB);
-
-                /*
-                 * Previous versions can set persist config to mtp/ptp but it does not
-                 * get reset on OTA. Reset the property here instead.
-                 */
-                String persisted = SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY);
-                if (UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_MTP)
-                        || UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_PTP)) {
-                    SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY,
-                            UsbManager.removeFunction(UsbManager.removeFunction(persisted,
-                                    UsbManager.USB_FUNCTION_MTP), UsbManager.USB_FUNCTION_PTP));
-                }
-
-                String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
-                updateState(state);
-
-                // register observer to listen for settings changes
-                mContentResolver.registerContentObserver(
-                        Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
-                        false, new AdbSettingsObserver());
-
-                // Watch for USB configuration changes
-                mUEventObserver.startObserving(USB_STATE_MATCH);
-                mUEventObserver.startObserving(ACCESSORY_START_MATCH);
-            } catch (Exception e) {
-                Slog.e(TAG, "Error initializing UsbHandler", e);
+            /*
+             * Previous versions can set persist config to mtp/ptp but it does not
+             * get reset on OTA. Reset the property here instead.
+             */
+            String persisted = SystemProperties.get(USB_PERSISTENT_CONFIG_PROPERTY);
+            if (UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_MTP)
+                    || UsbManager.containsFunction(persisted, UsbManager.USB_FUNCTION_PTP)) {
+                SystemProperties.set(USB_PERSISTENT_CONFIG_PROPERTY,
+                        UsbManager.removeFunction(UsbManager.removeFunction(persisted,
+                                UsbManager.USB_FUNCTION_MTP), UsbManager.USB_FUNCTION_PTP));
             }
         }
 
@@ -562,6 +543,21 @@
             sendMessage(m);
         }
 
+        public void sendMessage(int what, boolean arg1, boolean arg2) {
+            removeMessages(what);
+            Message m = Message.obtain(this, what);
+            m.arg1 = (arg1 ? 1 : 0);
+            m.arg2 = (arg2 ? 1 : 0);
+            sendMessage(m);
+        }
+
+        public void sendMessageDelayed(int what, boolean arg, long delayMillis) {
+            removeMessages(what);
+            Message m = Message.obtain(this, what);
+            m.arg1 = (arg ? 1 : 0);
+            sendMessageDelayed(m, delayMillis);
+        }
+
         public void updateState(String state) {
             int connected, configured;
 
@@ -579,6 +575,7 @@
                 return;
             }
             removeMessages(MSG_UPDATE_STATE);
+            if (connected == 1) removeMessages(MSG_FUNCTION_SWITCH_TIMEOUT);
             Message msg = Message.obtain(this, MSG_UPDATE_STATE);
             msg.arg1 = connected;
             msg.arg2 = configured;
@@ -601,28 +598,6 @@
             sendMessageDelayed(msg, UPDATE_DELAY);
         }
 
-        private boolean waitForState(String state) {
-            // wait for the transition to complete.
-            // give up after 1 second.
-            String value = null;
-            for (int i = 0; i < 20; i++) {
-                // State transition is done when sys.usb.state is set to the new configuration
-                value = SystemProperties.get(USB_STATE_PROPERTY);
-                if (state.equals(value)) return true;
-                SystemClock.sleep(50);
-            }
-            Slog.e(TAG, "waitForState(" + state + ") FAILED: got " + value);
-            return false;
-        }
-
-        private void setUsbConfig(String config) {
-            if (DEBUG) Slog.d(TAG, "setUsbConfig(" + config + ")");
-            // set the new configuration
-            // we always set it due to b/23631400, where adbd was getting killed
-            // and not restarted due to property timeouts on some devices
-            SystemProperties.set(USB_CONFIG_PROPERTY, config);
-        }
-
         private void setAdbEnabled(boolean enable) {
             if (DEBUG) Slog.d(TAG, "setAdbEnabled: " + enable);
             if (enable != mAdbEnabled) {
@@ -649,114 +624,7 @@
             }
         }
 
-        /**
-         * Evaluates USB function policies and applies the change accordingly.
-         */
-        private void setEnabledFunctions(String functions, boolean forceRestart,
-                boolean usbDataUnlocked) {
-            if (DEBUG) {
-                Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
-                        + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
-            }
-
-            if (usbDataUnlocked != mUsbDataUnlocked) {
-                mUsbDataUnlocked = usbDataUnlocked;
-                updateUsbNotification(false);
-                forceRestart = true;
-            }
-
-            // Try to set the enabled functions.
-            final String oldFunctions = mCurrentFunctions;
-            final boolean oldFunctionsApplied = mCurrentFunctionsApplied;
-            if (trySetEnabledFunctions(functions, forceRestart)) {
-                return;
-            }
-
-            // Didn't work.  Try to revert changes.
-            // We always reapply the policy in case certain constraints changed such as
-            // user restrictions independently of any other new functions we were
-            // trying to activate.
-            if (oldFunctionsApplied && !oldFunctions.equals(functions)) {
-                Slog.e(TAG, "Failsafe 1: Restoring previous USB functions.");
-                if (trySetEnabledFunctions(oldFunctions, false)) {
-                    return;
-                }
-            }
-
-            // Still didn't work.  Try to restore the default functions.
-            Slog.e(TAG, "Failsafe 2: Restoring default USB functions.");
-            if (trySetEnabledFunctions(null, false)) {
-                return;
-            }
-
-            // Now we're desperate.  Ignore the default functions.
-            // Try to get ADB working if enabled.
-            Slog.e(TAG, "Failsafe 3: Restoring empty function list (with ADB if enabled).");
-            if (trySetEnabledFunctions(UsbManager.USB_FUNCTION_NONE, false)) {
-                return;
-            }
-
-            // Ouch.
-            Slog.e(TAG, "Unable to set any USB functions!");
-        }
-
-        private boolean isNormalBoot() {
-            String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
-            return bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown");
-        }
-
-        private boolean trySetEnabledFunctions(String functions, boolean forceRestart) {
-            if (functions == null || applyAdbFunction(functions)
-                    .equals(UsbManager.USB_FUNCTION_NONE)) {
-                functions = getChargingFunctions();
-            }
-            functions = applyAdbFunction(functions);
-
-            String oemFunctions = applyOemOverrideFunction(functions);
-
-            if (!isNormalBoot() && !mCurrentFunctions.equals(functions)) {
-                SystemProperties.set(getPersistProp(true), functions);
-            }
-
-            if ((!functions.equals(oemFunctions) &&
-                            !mCurrentOemFunctions.equals(oemFunctions))
-                    || !mCurrentFunctions.equals(functions)
-                    || !mCurrentFunctionsApplied
-                    || forceRestart) {
-                Slog.i(TAG, "Setting USB config to " + functions);
-                mCurrentFunctions = functions;
-                mCurrentOemFunctions = oemFunctions;
-                mCurrentFunctionsApplied = false;
-
-                // Kick the USB stack to close existing connections.
-                setUsbConfig(UsbManager.USB_FUNCTION_NONE);
-
-                if (!waitForState(UsbManager.USB_FUNCTION_NONE)) {
-                    Slog.e(TAG, "Failed to kick USB config");
-                    return false;
-                }
-
-                // Set the new USB configuration.
-                setUsbConfig(oemFunctions);
-
-                if (mBootCompleted
-                        && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
-                        || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
-                    // Start up dependent services.
-                    updateUsbStateBroadcastIfNeeded(true);
-                }
-
-                if (!waitForState(oemFunctions)) {
-                    Slog.e(TAG, "Failed to switch USB config to " + functions);
-                    return false;
-                }
-
-                mCurrentFunctionsApplied = true;
-            }
-            return true;
-        }
-
-        private String applyAdbFunction(String functions) {
+        protected String applyAdbFunction(String functions) {
             // Do not pass null pointer to the UsbManager.
             // There isnt a check there.
             if (functions == null) {
@@ -838,7 +706,7 @@
             return false;
         }
 
-        private void updateUsbStateBroadcastIfNeeded(boolean configChanged) {
+        protected void updateUsbStateBroadcastIfNeeded(boolean configChanged) {
             // send a sticky broadcast containing current USB state
             Intent intent = new Intent(UsbManager.ACTION_USB_STATE);
             intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING
@@ -956,7 +824,8 @@
                         updateCurrentAccessory();
                     }
                     if (mBootCompleted) {
-                        if (!mConnected && !hasMessages(MSG_ACCESSORY_MODE_ENTER_TIMEOUT)) {
+                        if (!mConnected && !hasMessages(MSG_ACCESSORY_MODE_ENTER_TIMEOUT)
+                                && !hasMessages(MSG_FUNCTION_SWITCH_TIMEOUT)) {
                             // restore defaults when USB is disconnected
                             if (!mScreenLocked
                                     && !UsbManager.USB_FUNCTION_NONE.equals(
@@ -1082,7 +951,7 @@
                         if (!UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)
                                 && (UsbManager.USB_FUNCTION_ADB.equals(mCurrentFunctions)
                                 || (UsbManager.USB_FUNCTION_MTP.equals(mCurrentFunctions)
-                                        && !mUsbDataUnlocked))) {
+                                && !mUsbDataUnlocked))) {
                             // Set the screen unlocked functions if current function is charging.
                             setScreenUnlockedFunctions();
                         }
@@ -1097,9 +966,8 @@
                             mCurrentFunctions, forceRestart, mUsbDataUnlocked && !forceRestart);
                     break;
                 case MSG_SYSTEM_READY:
-                    updateUsbNotification(false);
-                    updateAdbNotification(false);
-                    updateUsbFunctions();
+                    mSystemReady = true;
+                    finishBoot();
                     break;
                 case MSG_LOCALE_CHANGED:
                     updateAdbNotification(true);
@@ -1107,23 +975,7 @@
                     break;
                 case MSG_BOOT_COMPLETED:
                     mBootCompleted = true;
-                    if (mPendingBootBroadcast) {
-                        updateUsbStateBroadcastIfNeeded(false);
-                        mPendingBootBroadcast = false;
-                    }
-
-                    if (!mScreenLocked
-                            && !UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)) {
-                        setScreenUnlockedFunctions();
-                    } else {
-                        setEnabledFunctions(null, false, false);
-                    }
-                    if (mCurrentAccessory != null) {
-                        getCurrentSettings().accessoryAttached(mCurrentAccessory);
-                    }
-                    if (mDebuggingManager != null) {
-                        mDebuggingManager.setAdbEnabled(mAdbEnabled);
-                    }
+                    finishBoot();
                     break;
                 case MSG_USER_SWITCHED: {
                     if (mCurrentUser != msg.arg1) {
@@ -1153,6 +1005,41 @@
             }
         }
 
+        protected void finishBoot() {
+            if (mBootCompleted && mCurrentUsbFunctionsReceived && mSystemReady) {
+                if (mPendingBootBroadcast) {
+                    updateUsbStateBroadcastIfNeeded(false);
+                    mPendingBootBroadcast = false;
+                }
+                if (!mScreenLocked
+                        && !UsbManager.USB_FUNCTION_NONE.equals(mScreenUnlockedFunctions)) {
+                    setScreenUnlockedFunctions();
+                } else {
+                    setEnabledFunctions(null, false, false);
+                }
+                if (mCurrentAccessory != null) {
+                    getCurrentSettings().accessoryAttached(mCurrentAccessory);
+                }
+                if (mDebuggingManager != null) {
+                    mDebuggingManager.setAdbEnabled(mAdbEnabled);
+                }
+
+                // make sure the ADB_ENABLED setting value matches the current state
+                try {
+                    Settings.Global.putInt(mContentResolver,
+                            Settings.Global.ADB_ENABLED, mAdbEnabled ? 1 : 0);
+                } catch (SecurityException e) {
+                    // If UserManager.DISALLOW_DEBUGGING_FEATURES is on, that this setting can't
+                    // be changed.
+                    Slog.d(TAG, "ADB_ENABLED is restricted.");
+                }
+
+                updateUsbNotification(false);
+                updateAdbNotification(false);
+                updateUsbFunctions();
+            }
+        }
+
         private boolean isUsbDataTransferActive() {
             return UsbManager.containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_MTP)
                     || UsbManager.containsFunction(mCurrentFunctions, UsbManager.USB_FUNCTION_PTP);
@@ -1162,7 +1049,7 @@
             return mCurrentAccessory;
         }
 
-        private void updateUsbNotification(boolean force) {
+        protected void updateUsbNotification(boolean force) {
             if (mNotificationManager == null || !mUseUsbNotification
                     || ("0".equals(SystemProperties.get("persist.charging.notify")))) {
                 return;
@@ -1262,18 +1149,18 @@
                     }
 
                     Notification.Builder builder = new Notification.Builder(mContext, channel)
-                                    .setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
-                                    .setWhen(0)
-                                    .setOngoing(true)
-                                    .setTicker(title)
-                                    .setDefaults(0)  // please be quiet
-                                    .setColor(mContext.getColor(
-                                            com.android.internal.R.color
-                                                    .system_notification_accent_color))
-                                    .setContentTitle(title)
-                                    .setContentText(message)
-                                    .setContentIntent(pi)
-                                    .setVisibility(Notification.VISIBILITY_PUBLIC);
+                            .setSmallIcon(com.android.internal.R.drawable.stat_sys_adb)
+                            .setWhen(0)
+                            .setOngoing(true)
+                            .setTicker(title)
+                            .setDefaults(0)  // please be quiet
+                            .setColor(mContext.getColor(
+                                    com.android.internal.R.color
+                                            .system_notification_accent_color))
+                            .setContentTitle(title)
+                            .setContentText(message)
+                            .setContentIntent(pi)
+                            .setVisibility(Notification.VISIBILITY_PUBLIC);
 
                     if (titleRes
                             == com.android.internal.R.string
@@ -1291,7 +1178,7 @@
             }
         }
 
-        private void updateAdbNotification(boolean force) {
+        protected void updateAdbNotification(boolean force) {
             if (mNotificationManager == null) return;
             final int id = SystemMessage.NOTE_ADB_ACTIVE;
             final int titleRes = com.android.internal.R.string.adb_active_notification_title;
@@ -1343,22 +1230,23 @@
             }
         }
 
-        private String getChargingFunctions() {
-            String func = SystemProperties.get(getPersistProp(true),
-                    UsbManager.USB_FUNCTION_NONE);
+        protected String getChargingFunctions() {
             // if ADB is enabled, reset functions to ADB
             // else enable MTP as usual.
-            if (UsbManager.containsFunction(func, UsbManager.USB_FUNCTION_ADB)) {
+            if (mAdbEnabled) {
                 return UsbManager.USB_FUNCTION_ADB;
             } else {
                 return UsbManager.USB_FUNCTION_MTP;
             }
         }
 
+        public boolean isFunctionEnabled(String function) {
+            return UsbManager.containsFunction(mCurrentFunctions, function);
+        }
+
         public void dump(IndentingPrintWriter pw) {
             pw.println("USB Device State:");
             pw.println("  mCurrentFunctions: " + mCurrentFunctions);
-            pw.println("  mCurrentOemFunctions: " + mCurrentOemFunctions);
             pw.println("  mCurrentFunctionsApplied: " + mCurrentFunctionsApplied);
             pw.println("  mScreenUnlockedFunctions: " + mScreenUnlockedFunctions);
             pw.println("  mScreenLocked: " + mScreenLocked);
@@ -1372,6 +1260,7 @@
             pw.println("  mUsbCharging: " + mUsbCharging);
             pw.println("  mHideUsbNotification: " + mHideUsbNotification);
             pw.println("  mAudioAccessoryConnected: " + mAudioAccessoryConnected);
+            pw.println("  mAdbEnabled: " + mAdbEnabled);
 
             try {
                 pw.println("  Kernel state: "
@@ -1382,6 +1271,675 @@
                 pw.println("IOException: " + e);
             }
         }
+
+        /**
+         * Evaluates USB function policies and applies the change accordingly.
+         */
+        protected abstract void setEnabledFunctions(String functions, boolean forceRestart,
+                boolean usbDataUnlocked);
+
+    }
+
+    private final class UsbHandlerLegacy extends UsbHandler {
+        /**
+         * The non-persistent property which stores the current USB settings.
+         */
+        private static final String USB_CONFIG_PROPERTY = "sys.usb.config";
+
+        /**
+         * The non-persistent property which stores the current USB actual state.
+         */
+        private static final String USB_STATE_PROPERTY = "sys.usb.state";
+
+        private HashMap<String, HashMap<String, Pair<String, String>>> mOemModeMap;
+        private String mCurrentOemFunctions;
+
+        UsbHandlerLegacy(Looper looper, Context context) {
+            super(looper);
+            try {
+                readOemUsbOverrideConfig(context);
+                // Restore default functions.
+                mCurrentOemFunctions = SystemProperties.get(getPersistProp(false),
+                        UsbManager.USB_FUNCTION_NONE);
+                if (isNormalBoot()) {
+                    mCurrentFunctions = SystemProperties.get(USB_CONFIG_PROPERTY,
+                            UsbManager.USB_FUNCTION_NONE);
+                    mCurrentFunctionsApplied = mCurrentFunctions.equals(
+                            SystemProperties.get(USB_STATE_PROPERTY));
+                } else {
+                    mCurrentFunctions = SystemProperties.get(getPersistProp(true),
+                            UsbManager.USB_FUNCTION_NONE);
+                    mCurrentFunctionsApplied = SystemProperties.get(USB_CONFIG_PROPERTY,
+                            UsbManager.USB_FUNCTION_NONE).equals(
+                            SystemProperties.get(USB_STATE_PROPERTY));
+                }
+                mCurrentUsbFunctionsReceived = true;
+
+                String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
+                updateState(state);
+
+                // register observer to listen for settings changes
+                mContentResolver.registerContentObserver(
+                        Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
+                        false, new AdbSettingsObserver());
+
+                // Watch for USB configuration changes
+                mUEventObserver.startObserving(USB_STATE_MATCH);
+                mUEventObserver.startObserving(ACCESSORY_START_MATCH);
+            } catch (Exception e) {
+                Slog.e(TAG, "Error initializing UsbHandler", e);
+            }
+        }
+
+        private void readOemUsbOverrideConfig(Context context) {
+            String[] configList = mContext.getResources().getStringArray(
+                    com.android.internal.R.array.config_oemUsbModeOverride);
+
+            if (configList != null) {
+                for (String config : configList) {
+                    String[] items = config.split(":");
+                    if (items.length == 3 || items.length == 4) {
+                        if (mOemModeMap == null) {
+                            mOemModeMap = new HashMap<>();
+                        }
+                        HashMap<String, Pair<String, String>> overrideMap =
+                                mOemModeMap.get(items[0]);
+                        if (overrideMap == null) {
+                            overrideMap = new HashMap<>();
+                            mOemModeMap.put(items[0], overrideMap);
+                        }
+
+                        // Favoring the first combination if duplicate exists
+                        if (!overrideMap.containsKey(items[1])) {
+                            if (items.length == 3) {
+                                overrideMap.put(items[1], new Pair<>(items[2], ""));
+                            } else {
+                                overrideMap.put(items[1], new Pair<>(items[2], items[3]));
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        private String applyOemOverrideFunction(String usbFunctions) {
+            if ((usbFunctions == null) || (mOemModeMap == null)) {
+                return usbFunctions;
+            }
+
+            String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+            Slog.d(TAG, "applyOemOverride usbfunctions=" + usbFunctions + " bootmode=" + bootMode);
+
+            Map<String, Pair<String, String>> overridesMap =
+                    mOemModeMap.get(bootMode);
+            // Check to ensure that the oem is not overriding in the normal
+            // boot mode
+            if (overridesMap != null && !(bootMode.equals(NORMAL_BOOT)
+                    || bootMode.equals("unknown"))) {
+                Pair<String, String> overrideFunctions =
+                        overridesMap.get(usbFunctions);
+                if (overrideFunctions != null) {
+                    Slog.d(TAG, "OEM USB override: " + usbFunctions
+                            + " ==> " + overrideFunctions.first
+                            + " persist across reboot "
+                            + overrideFunctions.second);
+                    if (!overrideFunctions.second.equals("")) {
+                        String newFunction;
+                        if (mAdbEnabled) {
+                            newFunction = UsbManager.addFunction(overrideFunctions.second,
+                                    UsbManager.USB_FUNCTION_ADB);
+                        } else {
+                            newFunction = overrideFunctions.second;
+                        }
+                        Slog.d(TAG, "OEM USB override persisting: " + newFunction + "in prop: "
+                                + getPersistProp(false));
+                        SystemProperties.set(getPersistProp(false),
+                                newFunction);
+                    }
+                    return overrideFunctions.first;
+                } else if (mAdbEnabled) {
+                    String newFunction = UsbManager.addFunction(UsbManager.USB_FUNCTION_NONE,
+                            UsbManager.USB_FUNCTION_ADB);
+                    SystemProperties.set(getPersistProp(false),
+                            newFunction);
+                } else {
+                    SystemProperties.set(getPersistProp(false),
+                            UsbManager.USB_FUNCTION_NONE);
+                }
+            }
+            // return passed in functions as is.
+            return usbFunctions;
+        }
+
+        private boolean waitForState(String state) {
+            // wait for the transition to complete.
+            // give up after 1 second.
+            String value = null;
+            for (int i = 0; i < 20; i++) {
+                // State transition is done when sys.usb.state is set to the new configuration
+                value = SystemProperties.get(USB_STATE_PROPERTY);
+                if (state.equals(value)) return true;
+                SystemClock.sleep(50);
+            }
+            Slog.e(TAG, "waitForState(" + state + ") FAILED: got " + value);
+            return false;
+        }
+
+        private void setUsbConfig(String config) {
+            if (DEBUG) Slog.d(TAG, "setUsbConfig(" + config + ")");
+            /**
+             * set the new configuration
+             * we always set it due to b/23631400, where adbd was getting killed
+             * and not restarted due to property timeouts on some devices
+             */
+            SystemProperties.set(USB_CONFIG_PROPERTY, config);
+        }
+
+        @Override
+        protected void setEnabledFunctions(String functions, boolean forceRestart,
+                boolean usbDataUnlocked) {
+            if (DEBUG) {
+                Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
+                        + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
+            }
+
+            if (usbDataUnlocked != mUsbDataUnlocked) {
+                mUsbDataUnlocked = usbDataUnlocked;
+                updateUsbNotification(false);
+                forceRestart = true;
+            }
+
+            /**
+             * Try to set the enabled functions.
+             */
+            final String oldFunctions = mCurrentFunctions;
+            final boolean oldFunctionsApplied = mCurrentFunctionsApplied;
+            if (trySetEnabledFunctions(functions, forceRestart)) {
+                return;
+            }
+
+            /**
+             * Didn't work.  Try to revert changes.
+             * We always reapply the policy in case certain constraints changed such as
+             * user restrictions independently of any other new functions we were
+             * trying to activate.
+             */
+            if (oldFunctionsApplied && !oldFunctions.equals(functions)) {
+                Slog.e(TAG, "Failsafe 1: Restoring previous USB functions.");
+                if (trySetEnabledFunctions(oldFunctions, false)) {
+                    return;
+                }
+            }
+
+            /**
+             * Still didn't work.  Try to restore the default functions.
+             */
+            Slog.e(TAG, "Failsafe 2: Restoring default USB functions.");
+            if (trySetEnabledFunctions(null, false)) {
+                return;
+            }
+
+            /**
+             * Now we're desperate.  Ignore the default functions.
+             * Try to get ADB working if enabled.
+             */
+            Slog.e(TAG, "Failsafe 3: Restoring empty function list (with ADB if enabled).");
+            if (trySetEnabledFunctions(UsbManager.USB_FUNCTION_NONE, false)) {
+                return;
+            }
+
+            /**
+             * Ouch.
+             */
+            Slog.e(TAG, "Unable to set any USB functions!");
+        }
+
+        private boolean isNormalBoot() {
+            String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+            return bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown");
+        }
+
+        private boolean trySetEnabledFunctions(String functions, boolean forceRestart) {
+            if (functions == null || applyAdbFunction(functions)
+                    .equals(UsbManager.USB_FUNCTION_NONE)) {
+                functions = getChargingFunctions();
+            }
+            functions = applyAdbFunction(functions);
+
+            String oemFunctions = applyOemOverrideFunction(functions);
+
+            if (!isNormalBoot() && !mCurrentFunctions.equals(functions)) {
+                SystemProperties.set(getPersistProp(true), functions);
+            }
+
+            if ((!functions.equals(oemFunctions)
+                    && !mCurrentOemFunctions.equals(oemFunctions))
+                    || !mCurrentFunctions.equals(functions)
+                    || !mCurrentFunctionsApplied
+                    || forceRestart) {
+                Slog.i(TAG, "Setting USB config to " + functions);
+                mCurrentFunctions = functions;
+                mCurrentOemFunctions = oemFunctions;
+                mCurrentFunctionsApplied = false;
+
+                /**
+                 * Kick the USB stack to close existing connections.
+                 */
+                setUsbConfig(UsbManager.USB_FUNCTION_NONE);
+
+                if (!waitForState(UsbManager.USB_FUNCTION_NONE)) {
+                    Slog.e(TAG, "Failed to kick USB config");
+                    return false;
+                }
+
+                /**
+                 * Set the new USB configuration.
+                 */
+                setUsbConfig(oemFunctions);
+
+                if (mBootCompleted
+                        && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
+                        || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
+                    /**
+                     * Start up dependent services.
+                     */
+                    updateUsbStateBroadcastIfNeeded(true);
+                }
+
+                if (!waitForState(oemFunctions)) {
+                    Slog.e(TAG, "Failed to switch USB config to " + functions);
+                    return false;
+                }
+
+                mCurrentFunctionsApplied = true;
+            }
+            return true;
+        }
+
+        private String getPersistProp(boolean functions) {
+            String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
+            String persistProp = USB_PERSISTENT_CONFIG_PROPERTY;
+            if (!(bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown"))) {
+                if (functions) {
+                    persistProp = "persist.sys.usb." + bootMode + ".func";
+                } else {
+                    persistProp = "persist.sys.usb." + bootMode + ".config";
+                }
+            }
+            return persistProp;
+        }
+    }
+
+    private final class UsbHandlerHal extends UsbHandler {
+
+        /**
+         * Proxy object for the usb gadget hal daemon.
+         */
+        @GuardedBy("mGadgetProxyLock")
+        private IUsbGadget mGadgetProxy;
+
+        private final Object mGadgetProxyLock = new Object();
+
+        /**
+         * Cookie sent for usb gadget hal death notification.
+         */
+        private static final int USB_GADGET_HAL_DEATH_COOKIE = 2000;
+
+        /**
+         * Keeps track of the latest setCurrentUsbFunctions request number.
+         */
+        private int mCurrentRequest = 0;
+
+        /**
+         * The maximum time for which the UsbDeviceManager would wait once
+         * setCurrentUsbFunctions is called.
+         */
+        private static final int SET_FUNCTIONS_TIMEOUT_MS = 3000;
+
+        /**
+         * Conseration leeway to make sure that the hal callback arrives before
+         * SET_FUNCTIONS_TIMEOUT_MS expires. If the callback does not arrive
+         * within SET_FUNCTIONS_TIMEOUT_MS, UsbDeviceManager retries enabling
+         * default functions.
+         */
+        private static final int SET_FUNCTIONS_LEEWAY_MS = 500;
+
+        /**
+         * While switching functions, a disconnect is excpect as the usb gadget
+         * us torn down and brought back up. Wait for SET_FUNCTIONS_TIMEOUT_MS +
+         * ENUMERATION_TIME_OUT_MS before switching back to default fumctions when
+         * switching functions.
+         */
+        private static final int ENUMERATION_TIME_OUT_MS = 2000;
+
+        /**
+         * Command to start native service.
+         */
+        protected static final String CTL_START = "ctl.start";
+
+        /**
+         * Command to start native service.
+         */
+        protected static final String CTL_STOP = "ctl.stop";
+
+        /**
+         * Adb natvie daemon
+         */
+        protected static final String ADBD = "adbd";
+
+
+        UsbHandlerHal(Looper looper) {
+            super(looper);
+            try {
+                ServiceNotification serviceNotification = new ServiceNotification();
+
+                boolean ret = IServiceManager.getService()
+                        .registerForNotifications("android.hardware.usb.gadget@1.0::IUsbGadget",
+                                "", serviceNotification);
+                if (!ret) {
+                    Slog.e(TAG, "Failed to register usb gadget service start notification");
+                    return;
+                }
+
+                synchronized (mGadgetProxyLock) {
+                    mGadgetProxy = IUsbGadget.getService(true);
+                    mGadgetProxy.linkToDeath(new UsbGadgetDeathRecipient(),
+                            USB_GADGET_HAL_DEATH_COOKIE);
+                    mCurrentFunctions = UsbManager.USB_FUNCTION_NONE;
+                    mGadgetProxy.getCurrentUsbFunctions(new UsbGadgetCallback());
+                    mCurrentUsbFunctionsRequested = true;
+                }
+                String state = FileUtils.readTextFile(new File(STATE_PATH), 0, null).trim();
+                updateState(state);
+
+                /**
+                 * Register observer to listen for settings changes.
+                 */
+                mContentResolver.registerContentObserver(
+                        Settings.Global.getUriFor(Settings.Global.ADB_ENABLED),
+                        false, new AdbSettingsObserver());
+
+                /**
+                 * Watch for USB configuration changes.
+                 */
+                mUEventObserver.startObserving(USB_STATE_MATCH);
+                mUEventObserver.startObserving(ACCESSORY_START_MATCH);
+            } catch (NoSuchElementException e) {
+                Slog.e(TAG, "Usb gadget hal not found", e);
+            } catch (RemoteException e) {
+                Slog.e(TAG, "Usb Gadget hal not responding", e);
+            } catch (Exception e) {
+                Slog.e(TAG, "Error initializing UsbHandler", e);
+            }
+        }
+
+
+        final class UsbGadgetDeathRecipient implements HwBinder.DeathRecipient {
+            @Override
+            public void serviceDied(long cookie) {
+                if (cookie == USB_GADGET_HAL_DEATH_COOKIE) {
+                    Slog.e(TAG, "Usb Gadget hal service died cookie: " + cookie);
+                    synchronized (mGadgetProxyLock) {
+                        mGadgetProxy = null;
+                    }
+                }
+            }
+        }
+
+        final class ServiceNotification extends IServiceNotification.Stub {
+            @Override
+            public void onRegistration(String fqName, String name, boolean preexisting) {
+                Slog.i(TAG, "Usb gadget hal service started " + fqName + " " + name);
+                synchronized (mGadgetProxyLock) {
+                    try {
+                        mGadgetProxy = IUsbGadget.getService();
+                        mGadgetProxy.linkToDeath(new UsbGadgetDeathRecipient(),
+                                USB_GADGET_HAL_DEATH_COOKIE);
+                        if (!mCurrentFunctionsApplied) {
+                            setCurrentFunctions(mCurrentFunctions, mUsbDataUnlocked);
+                        }
+                    } catch (NoSuchElementException e) {
+                        Slog.e(TAG, "Usb gadget hal not found", e);
+                    } catch (RemoteException e) {
+                        Slog.e(TAG, "Usb Gadget hal not responding", e);
+                    }
+                }
+            }
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case MSG_SET_CHARGING_FUNCTIONS:
+                    setEnabledFunctions(null, false, mUsbDataUnlocked);
+                    break;
+                case MSG_SET_FUNCTIONS_TIMEOUT:
+                    Slog.e(TAG, "Set functions timed out! no reply from usb hal");
+                    if (msg.arg1 != 1) {
+                        setEnabledFunctions(null, false, mUsbDataUnlocked);
+                    }
+                    break;
+                case MSG_GET_CURRENT_USB_FUNCTIONS:
+                    Slog.e(TAG, "prcessing MSG_GET_CURRENT_USB_FUNCTIONS");
+                    mCurrentUsbFunctionsReceived = true;
+
+                    if (mCurrentUsbFunctionsRequested) {
+                        Slog.e(TAG, "updating mCurrentFunctions");
+                        mCurrentFunctions = functionListToString((Long) msg.obj);
+                        Slog.e(TAG,
+                                "mCurrentFunctions:" + mCurrentFunctions + "applied:" + msg.arg1);
+                        mCurrentFunctionsApplied = msg.arg1 == 1;
+                    }
+                    finishBoot();
+                    break;
+                case MSG_FUNCTION_SWITCH_TIMEOUT:
+                    /**
+                     * Dont force to default when the configuration is already set to default.
+                     */
+                    if (msg.arg1 != 1) {
+                        setEnabledFunctions(null, !mAdbEnabled, false);
+                    }
+                    break;
+                default:
+                    super.handleMessage(msg);
+            }
+        }
+
+        private class UsbGadgetCallback extends IUsbGadgetCallback.Stub {
+            int mRequest;
+            long mFunctions;
+            boolean mChargingFunctions;
+
+            UsbGadgetCallback() {
+            }
+
+            UsbGadgetCallback(int request, long functions,
+                    boolean chargingFunctions) {
+                mRequest = request;
+                mFunctions = functions;
+                mChargingFunctions = chargingFunctions;
+            }
+
+            @Override
+            public void setCurrentUsbFunctionsCb(long functions,
+                    int status) {
+                /**
+                 * Callback called for a previous setCurrenUsbFunction
+                 */
+                if ((mCurrentRequest != mRequest) || !hasMessages(MSG_SET_FUNCTIONS_TIMEOUT)
+                        || (mFunctions != functions)) {
+                    return;
+                }
+
+                removeMessages(MSG_SET_FUNCTIONS_TIMEOUT);
+                Slog.e(TAG, "notifyCurrentFunction request:" + mRequest + " status:" + status);
+                if (status == Status.SUCCESS) {
+                    mCurrentFunctionsApplied = true;
+                } else if (!mChargingFunctions) {
+                    Slog.e(TAG, "Setting default fuctions");
+                    sendEmptyMessage(MSG_SET_CHARGING_FUNCTIONS);
+                }
+            }
+
+            @Override
+            public void getCurrentUsbFunctionsCb(long functions,
+                    int status) {
+                sendMessage(MSG_GET_CURRENT_USB_FUNCTIONS, functions,
+                        status == Status.FUNCTIONS_APPLIED);
+            }
+        }
+
+        private long stringToFunctionList(String config) {
+            long functionsMask = 0;
+            String[] functions = config.split(",");
+            for (int i = 0; i < functions.length; i++) {
+                switch (functions[i]) {
+                    case "none":
+                        functionsMask |= GadgetFunction.NONE;
+                        break;
+                    case "adb":
+                        functionsMask |= GadgetFunction.ADB;
+                        break;
+                    case "mtp":
+                        functionsMask |= GadgetFunction.MTP;
+                        break;
+                    case "ptp":
+                        functionsMask |= GadgetFunction.PTP;
+                        break;
+                    case "midi":
+                        functionsMask |= GadgetFunction.MIDI;
+                        break;
+                    case "accessory":
+                        functionsMask |= GadgetFunction.ACCESSORY;
+                        break;
+                    case "rndis":
+                        functionsMask |= GadgetFunction.RNDIS;
+                        break;
+                }
+            }
+            return functionsMask;
+        }
+
+        private String functionListToString(Long functionList) {
+            StringJoiner functions = new StringJoiner(",");
+            if (functionList == GadgetFunction.NONE) {
+                functions.add("none");
+                return functions.toString();
+            }
+            if ((functionList & GadgetFunction.ADB) != 0) {
+                functions.add("adb");
+            }
+            if ((functionList & GadgetFunction.MTP) != 0) {
+                functions.add("mtp");
+            }
+            if ((functionList & GadgetFunction.PTP) != 0) {
+                functions.add("ptp");
+            }
+            if ((functionList & GadgetFunction.MIDI) != 0) {
+                functions.add("midi");
+            }
+            if ((functionList & GadgetFunction.ACCESSORY) != 0) {
+                functions.add("accessory");
+            }
+            if ((functionList & GadgetFunction.RNDIS) != 0) {
+                functions.add("rndis");
+            }
+            /**
+             * Remove the trailing comma.
+             */
+            return functions.toString();
+        }
+
+
+        private void setUsbConfig(String config, boolean chargingFunctions) {
+            Long functions = stringToFunctionList(config);
+            if (true) Slog.d(TAG, "setUsbConfig(" + config + ") request:" + ++mCurrentRequest);
+            /**
+             * Cancel any ongoing requests, if present.
+             */
+            removeMessages(MSG_FUNCTION_SWITCH_TIMEOUT);
+            removeMessages(MSG_SET_FUNCTIONS_TIMEOUT);
+            removeMessages(MSG_SET_CHARGING_FUNCTIONS);
+
+            synchronized (mGadgetProxyLock) {
+                if (mGadgetProxy == null) {
+                    Slog.e(TAG, "setUsbConfig mGadgetProxy is null");
+                    return;
+                }
+                try {
+                    if ((functions & GadgetFunction.ADB) != 0) {
+                        /**
+                         * Start adbd if ADB function is included in the configuration.
+                         */
+                        SystemProperties.set(CTL_START, ADBD);
+                    } else {
+                        /**
+                         * Stop adbd otherwise.
+                         */
+                        SystemProperties.set(CTL_STOP, ADBD);
+                    }
+                    UsbGadgetCallback usbGadgetCallback = new UsbGadgetCallback(mCurrentRequest,
+                            functions, chargingFunctions);
+                    mGadgetProxy.setCurrentUsbFunctions(functions, usbGadgetCallback,
+                            SET_FUNCTIONS_TIMEOUT_MS - SET_FUNCTIONS_LEEWAY_MS);
+                    sendMessageDelayed(MSG_SET_FUNCTIONS_TIMEOUT, chargingFunctions,
+                            SET_FUNCTIONS_TIMEOUT_MS);
+                    sendMessageDelayed(MSG_FUNCTION_SWITCH_TIMEOUT, chargingFunctions,
+                            SET_FUNCTIONS_TIMEOUT_MS + ENUMERATION_TIME_OUT_MS);
+                    if (DEBUG) Slog.d(TAG, "timeout message queued");
+                } catch (RemoteException e) {
+                    Slog.e(TAG, "Remoteexception while calling setCurrentUsbFunctions", e);
+                }
+            }
+        }
+
+        @Override
+        protected void setEnabledFunctions(String functions, boolean forceRestart,
+                boolean usbDataUnlocked) {
+            if (DEBUG) {
+                Slog.d(TAG, "setEnabledFunctions functions=" + functions + ", "
+                        + "forceRestart=" + forceRestart + ", usbDataUnlocked=" + usbDataUnlocked);
+            }
+
+            if (usbDataUnlocked != mUsbDataUnlocked) {
+                mUsbDataUnlocked = usbDataUnlocked;
+                updateUsbNotification(false);
+                forceRestart = true;
+            }
+
+            trySetEnabledFunctions(functions, forceRestart);
+        }
+
+        private void trySetEnabledFunctions(String functions, boolean forceRestart) {
+            boolean chargingFunctions = false;
+
+            if (functions == null || applyAdbFunction(functions)
+                    .equals(UsbManager.USB_FUNCTION_NONE)) {
+                functions = getChargingFunctions();
+                chargingFunctions = true;
+            }
+            functions = applyAdbFunction(functions);
+
+            if (!mCurrentFunctions.equals(functions)
+                    || !mCurrentFunctionsApplied
+                    || forceRestart) {
+                Slog.i(TAG, "Setting USB config to " + functions);
+                mCurrentFunctions = functions;
+                mCurrentFunctionsApplied = false;
+                // set the flag to false as that would be stale value
+                mCurrentUsbFunctionsRequested = false;
+
+                // Set the new USB configuration.
+                setUsbConfig(mCurrentFunctions, chargingFunctions);
+
+                if (mBootCompleted
+                        && (UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_MTP)
+                        || UsbManager.containsFunction(functions, UsbManager.USB_FUNCTION_PTP))) {
+                    // Start up dependent services.
+                    updateUsbStateBroadcastIfNeeded(true);
+                }
+            }
+        }
     }
 
     /* returns the currently attached USB accessory */
@@ -1389,7 +1947,11 @@
         return mHandler.getCurrentAccessory();
     }
 
-    /* opens the currently attached USB accessory */
+    /**
+     * opens the currently attached USB accessory.
+     *
+     * @param accessory accessory to be openened.
+     */
     public ParcelFileDescriptor openAccessory(UsbAccessory accessory,
             UsbUserSettingsManager settings) {
         UsbAccessory currentAccessory = mHandler.getCurrentAccessory();
@@ -1406,20 +1968,32 @@
         return nativeOpenAccessory();
     }
 
+    /**
+     * Checks whether the function is present in the USB configuration.
+     *
+     * @param function function to be checked.
+     */
     public boolean isFunctionEnabled(String function) {
-        return UsbManager.containsFunction(SystemProperties.get(USB_CONFIG_PROPERTY), function);
+        return mHandler.isFunctionEnabled(function);
     }
 
+    /**
+     * Adds function to the current USB configuration.
+     *
+     * @param functions name of the USB function, or null to restore the default function.
+     * @param usbDataUnlocked whether user data is accessible.
+     */
     public void setCurrentFunctions(String functions, boolean usbDataUnlocked) {
         if (DEBUG) {
-            Slog.d(TAG, "setCurrentFunctions(" + functions + ", " +
-                    usbDataUnlocked + ")");
+            Slog.d(TAG, "setCurrentFunctions(" + functions + ", "
+                    + usbDataUnlocked + ")");
         }
         mHandler.sendMessage(MSG_SET_CURRENT_FUNCTIONS, functions, usbDataUnlocked);
     }
 
     /**
      * Sets the functions which are set when the screen is unlocked.
+     *
      * @param functions Functions to set.
      */
     public void setScreenUnlockedFunctions(String functions) {
@@ -1429,101 +2003,6 @@
         mHandler.sendMessage(MSG_SET_SCREEN_UNLOCKED_FUNCTIONS, functions);
     }
 
-    private void readOemUsbOverrideConfig() {
-        String[] configList = mContext.getResources().getStringArray(
-                com.android.internal.R.array.config_oemUsbModeOverride);
-
-        if (configList != null) {
-            for (String config : configList) {
-                String[] items = config.split(":");
-                if (items.length == 3 || items.length == 4) {
-                    if (mOemModeMap == null) {
-                        mOemModeMap = new HashMap<>();
-                    }
-                    HashMap<String, Pair<String, String>> overrideMap
-                            = mOemModeMap.get(items[0]);
-                    if (overrideMap == null) {
-                        overrideMap = new HashMap<>();
-                        mOemModeMap.put(items[0], overrideMap);
-                    }
-
-                    // Favoring the first combination if duplicate exists
-                    if (!overrideMap.containsKey(items[1])) {
-                        if (items.length == 3) {
-                            overrideMap.put(items[1], new Pair<>(items[2], ""));
-                        } else {
-                            overrideMap.put(items[1], new Pair<>(items[2], items[3]));
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    private String applyOemOverrideFunction(String usbFunctions) {
-        if ((usbFunctions == null) || (mOemModeMap == null)) {
-            return usbFunctions;
-        }
-
-        String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
-        Slog.d(TAG, "applyOemOverride usbfunctions=" + usbFunctions + " bootmode=" + bootMode);
-
-        Map<String, Pair<String, String>> overridesMap =
-                mOemModeMap.get(bootMode);
-        // Check to ensure that the oem is not overriding in the normal
-        // boot mode
-        if (overridesMap != null && !(bootMode.equals(NORMAL_BOOT) ||
-                bootMode.equals("unknown"))) {
-            Pair<String, String> overrideFunctions =
-                    overridesMap.get(usbFunctions);
-            if (overrideFunctions != null) {
-                Slog.d(TAG, "OEM USB override: " + usbFunctions
-                        + " ==> " + overrideFunctions.first
-                        + " persist across reboot "
-                        + overrideFunctions.second);
-                if (!overrideFunctions.second.equals("")) {
-                    String newFunction;
-                    if (mAdbEnabled) {
-                        newFunction = UsbManager.addFunction(overrideFunctions.second,
-                                UsbManager.USB_FUNCTION_ADB);
-                    } else {
-                        newFunction = overrideFunctions.second;
-                    }
-                    Slog.d(TAG, "OEM USB override persisting: " + newFunction + "in prop: "
-                            + UsbDeviceManager.getPersistProp(false));
-                    SystemProperties.set(UsbDeviceManager.getPersistProp(false),
-                            newFunction);
-                }
-                return overrideFunctions.first;
-            } else if (mAdbEnabled) {
-                String newFunction = UsbManager.addFunction(UsbManager.USB_FUNCTION_NONE,
-                        UsbManager.USB_FUNCTION_ADB);
-                SystemProperties.set(UsbDeviceManager.getPersistProp(false),
-                        newFunction);
-            } else {
-                SystemProperties.set(UsbDeviceManager.getPersistProp(false),
-                        UsbManager.USB_FUNCTION_NONE);
-            }
-        }
-        // return passed in functions as is.
-        return usbFunctions;
-    }
-
-    public static String getPersistProp(boolean functions) {
-        String bootMode = SystemProperties.get(BOOT_MODE_PROPERTY, "unknown");
-        String persistProp = USB_PERSISTENT_CONFIG_PROPERTY;
-        if (!(bootMode.equals(NORMAL_BOOT) || bootMode.equals("unknown"))) {
-            if (functions) {
-                persistProp = "persist.sys.usb." + bootMode + ".func";
-            } else {
-                persistProp = "persist.sys.usb." + bootMode + ".config";
-            }
-        }
-
-        return persistProp;
-    }
-
-
     public void allowUsbDebugging(boolean alwaysAllow, String publicKey) {
         if (mDebuggingManager != null) {
             mDebuggingManager.allowUsbDebugging(alwaysAllow, publicKey);
diff --git a/telecomm/java/android/telecom/Call.java b/telecomm/java/android/telecom/Call.java
index d17bdc8..6799417 100644
--- a/telecomm/java/android/telecom/Call.java
+++ b/telecomm/java/android/telecom/Call.java
@@ -1960,6 +1960,15 @@
         }
     }
 
+    /** {@hide} */
+    final void internalOnHandoverComplete() {
+        for (CallbackRecord<Callback> record : mCallbackRecords) {
+            final Call call = this;
+            final Callback callback = record.getCallback();
+            record.getHandler().post(() -> callback.onHandoverComplete(call));
+        }
+    }
+
     private void fireStateChanged(final int newState) {
         for (CallbackRecord<Callback> record : mCallbackRecords) {
             final Call call = this;
diff --git a/telecomm/java/android/telecom/Connection.java b/telecomm/java/android/telecom/Connection.java
index 7522443..63f970a 100644
--- a/telecomm/java/android/telecom/Connection.java
+++ b/telecomm/java/android/telecom/Connection.java
@@ -2801,6 +2801,15 @@
     public void onCallEvent(String event, Bundle extras) {}
 
     /**
+     * Notifies this {@link Connection} that a handover has completed.
+     * <p>
+     * A handover is initiated with {@link android.telecom.Call#handoverTo(PhoneAccountHandle, int,
+     * Bundle)} on the initiating side of the handover, and
+     * {@link TelecomManager#acceptHandover(Uri, int, PhoneAccountHandle)}.
+     */
+    public void onHandoverComplete() {}
+
+    /**
      * Notifies this {@link Connection} of a change to the extras made outside the
      * {@link ConnectionService}.
      * <p>
diff --git a/telecomm/java/android/telecom/ConnectionService.java b/telecomm/java/android/telecom/ConnectionService.java
index 6af01ae..c1040ad 100644
--- a/telecomm/java/android/telecom/ConnectionService.java
+++ b/telecomm/java/android/telecom/ConnectionService.java
@@ -140,6 +140,7 @@
     private static final String SESSION_POST_DIAL_CONT = "CS.oPDC";
     private static final String SESSION_PULL_EXTERNAL_CALL = "CS.pEC";
     private static final String SESSION_SEND_CALL_EVENT = "CS.sCE";
+    private static final String SESSION_HANDOVER_COMPLETE = "CS.hC";
     private static final String SESSION_EXTRAS_CHANGED = "CS.oEC";
     private static final String SESSION_START_RTT = "CS.+RTT";
     private static final String SESSION_STOP_RTT = "CS.-RTT";
@@ -179,6 +180,7 @@
     private static final int MSG_CONNECTION_SERVICE_FOCUS_LOST = 30;
     private static final int MSG_CONNECTION_SERVICE_FOCUS_GAINED = 31;
     private static final int MSG_HANDOVER_FAILED = 32;
+    private static final int MSG_HANDOVER_COMPLETE = 33;
 
     private static Connection sNullConnection;
 
@@ -298,6 +300,19 @@
         }
 
         @Override
+        public void handoverComplete(String callId, Session.Info sessionInfo) {
+            Log.startSession(sessionInfo, SESSION_HANDOVER_COMPLETE);
+            try {
+                SomeArgs args = SomeArgs.obtain();
+                args.arg1 = callId;
+                args.arg2 = Log.createSubsession();
+                mHandler.obtainMessage(MSG_HANDOVER_COMPLETE, args).sendToTarget();
+            } finally {
+                Log.endSession();
+            }
+        }
+
+        @Override
         public void abort(String callId, Session.Info sessionInfo) {
             Log.startSession(sessionInfo, SESSION_ABORT);
             try {
@@ -1028,6 +1043,19 @@
                     }
                     break;
                 }
+                case MSG_HANDOVER_COMPLETE: {
+                    SomeArgs args = (SomeArgs) msg.obj;
+                    try {
+                        Log.continueSession((Session) args.arg2,
+                                SESSION_HANDLER + SESSION_HANDOVER_COMPLETE);
+                        String callId = (String) args.arg1;
+                        notifyHandoverComplete(callId);
+                    } finally {
+                        args.recycle();
+                        Log.endSession();
+                    }
+                    break;
+                }
                 case MSG_ON_EXTRAS_CHANGED: {
                     SomeArgs args = (SomeArgs) msg.obj;
                     try {
@@ -1445,19 +1473,24 @@
             final ConnectionRequest request,
             boolean isIncoming,
             boolean isUnknown) {
+        boolean isLegacyHandover = request.getExtras() != null &&
+                request.getExtras().getBoolean(TelecomManager.EXTRA_IS_HANDOVER, false);
+        boolean isHandover = request.getExtras() != null && request.getExtras().getBoolean(
+                TelecomManager.EXTRA_IS_HANDOVER_CONNECTION, false);
         Log.d(this, "createConnection, callManagerAccount: %s, callId: %s, request: %s, " +
-                        "isIncoming: %b, isUnknown: %b", callManagerAccount, callId, request,
-                isIncoming,
-                isUnknown);
+                        "isIncoming: %b, isUnknown: %b, isLegacyHandover: %b, isHandover: %b",
+                callManagerAccount, callId, request, isIncoming, isUnknown, isLegacyHandover,
+                isHandover);
 
         Connection connection = null;
-        if (getApplicationContext().getApplicationInfo().targetSdkVersion >
-                Build.VERSION_CODES.O_MR1 && request.getExtras() != null &&
-                request.getExtras().getBoolean(TelecomManager.EXTRA_IS_HANDOVER,false)) {
+        if (isHandover) {
+            PhoneAccountHandle fromPhoneAccountHandle = request.getExtras() != null
+                    ? (PhoneAccountHandle) request.getExtras().getParcelable(
+                    TelecomManager.EXTRA_HANDOVER_FROM_PHONE_ACCOUNT) : null;
             if (!isIncoming) {
-                connection = onCreateOutgoingHandoverConnection(callManagerAccount, request);
+                connection = onCreateOutgoingHandoverConnection(fromPhoneAccountHandle, request);
             } else {
-                connection = onCreateIncomingHandoverConnection(callManagerAccount, request);
+                connection = onCreateIncomingHandoverConnection(fromPhoneAccountHandle, request);
             }
         } else {
             connection = isUnknown ? onCreateUnknownConnection(callManagerAccount, request)
@@ -1754,6 +1787,19 @@
     }
 
     /**
+     * Notifies a {@link Connection} that a handover has completed.
+     *
+     * @param callId The ID of the call which completed handover.
+     */
+    private void notifyHandoverComplete(String callId) {
+        Log.d(this, "notifyHandoverComplete(%s)", callId);
+        Connection connection = findConnectionForAction(callId, "notifyHandoverComplete");
+        if (connection != null) {
+            connection.onHandoverComplete();
+        }
+    }
+
+    /**
      * Notifies a {@link Connection} or {@link Conference} of a change to the extras from Telecom.
      * <p>
      * These extra changes can originate from Telecom itself, or from an {@link InCallService} via
diff --git a/telecomm/java/android/telecom/InCallService.java b/telecomm/java/android/telecom/InCallService.java
index 74fa62d..fcf04c9 100644
--- a/telecomm/java/android/telecom/InCallService.java
+++ b/telecomm/java/android/telecom/InCallService.java
@@ -81,6 +81,7 @@
     private static final int MSG_ON_RTT_UPGRADE_REQUEST = 10;
     private static final int MSG_ON_RTT_INITIATION_FAILURE = 11;
     private static final int MSG_ON_HANDOVER_FAILED = 12;
+    private static final int MSG_ON_HANDOVER_COMPLETE = 13;
 
     /** Default Handler used to consolidate binder method calls onto a single thread. */
     private final Handler mHandler = new Handler(Looper.getMainLooper()) {
@@ -157,6 +158,11 @@
                     mPhone.internalOnHandoverFailed(callId, error);
                     break;
                 }
+                case MSG_ON_HANDOVER_COMPLETE: {
+                    String callId = (String) msg.obj;
+                    mPhone.internalOnHandoverComplete(callId);
+                    break;
+                }
                 default:
                     break;
             }
@@ -237,6 +243,11 @@
         public void onHandoverFailed(String callId, int error) {
             mHandler.obtainMessage(MSG_ON_HANDOVER_FAILED, error, 0, callId).sendToTarget();
         }
+
+        @Override
+        public void onHandoverComplete(String callId) {
+            mHandler.obtainMessage(MSG_ON_HANDOVER_COMPLETE, callId).sendToTarget();
+        }
     }
 
     private Phone.Listener mPhoneListener = new Phone.Listener() {
diff --git a/telecomm/java/android/telecom/Phone.java b/telecomm/java/android/telecom/Phone.java
index b5394b9..99f94f2 100644
--- a/telecomm/java/android/telecom/Phone.java
+++ b/telecomm/java/android/telecom/Phone.java
@@ -230,6 +230,13 @@
         }
     }
 
+    final void internalOnHandoverComplete(String callId) {
+        Call call = mCallByTelecomCallId.get(callId);
+        if (call != null) {
+            call.internalOnHandoverComplete();
+        }
+    }
+
     /**
      * Called to destroy the phone and cleanup any lingering calls.
      */
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 91d5da3..1fe5db5 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -111,6 +111,12 @@
             "android.telecom.action.SHOW_RESPOND_VIA_SMS_SETTINGS";
 
     /**
+     * The {@link android.content.Intent} action used to show the assisted dialing settings.
+     */
+    public static final String ACTION_SHOW_ASSISTED_DIALING_SETTINGS =
+            "android.telecom.action.SHOW_ASSISTED_DIALING_SETTINGS";
+
+    /**
      * The {@link android.content.Intent} action used to show the settings page used to configure
      * {@link PhoneAccount} preferences.
      */
@@ -379,6 +385,17 @@
     public static final String EXTRA_IS_HANDOVER = "android.telecom.extra.IS_HANDOVER";
 
     /**
+     * When {@code true} indicates that a request to create a new connection is for the purpose of
+     * a handover.  Note: This is used with the
+     * {@link android.telecom.Call#handoverTo(PhoneAccountHandle, int, Bundle)} API as part of the
+     * internal communication mechanism with the {@link android.telecom.ConnectionService}.  It is
+     * not the same as the legacy {@link #EXTRA_IS_HANDOVER} extra.
+     * @hide
+     */
+    public static final String EXTRA_IS_HANDOVER_CONNECTION =
+            "android.telecom.extra.IS_HANDOVER_CONNECTION";
+
+    /**
      * Parcelable extra used with {@link #EXTRA_IS_HANDOVER} to indicate the source
      * {@link PhoneAccountHandle} when initiating a handover which {@link ConnectionService}
      * the handover is from.
diff --git a/telecomm/java/com/android/internal/telecom/IConnectionService.aidl b/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
index 3d04bfc..3a84f00 100644
--- a/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
+++ b/telecomm/java/com/android/internal/telecom/IConnectionService.aidl
@@ -107,4 +107,6 @@
 
     void handoverFailed(String callId, in ConnectionRequest request,
             int error, in Session.Info sessionInfo);
+
+    void handoverComplete(String callId, in Session.Info sessionInfo);
 }
diff --git a/telecomm/java/com/android/internal/telecom/IInCallService.aidl b/telecomm/java/com/android/internal/telecom/IInCallService.aidl
index 110109e..b9563fa 100644
--- a/telecomm/java/com/android/internal/telecom/IInCallService.aidl
+++ b/telecomm/java/com/android/internal/telecom/IInCallService.aidl
@@ -56,4 +56,6 @@
     void onRttInitiationFailure(String callId, int reason);
 
     void onHandoverFailed(String callId, int error);
+
+    void onHandoverComplete(String callId);
 }
diff --git a/telephony/java/android/telephony/AccessNetworkConstants.java b/telephony/java/android/telephony/AccessNetworkConstants.java
index 703f96d..7cd1612 100644
--- a/telephony/java/android/telephony/AccessNetworkConstants.java
+++ b/telephony/java/android/telephony/AccessNetworkConstants.java
@@ -24,6 +24,7 @@
 public final class AccessNetworkConstants {
 
     public static final class AccessNetworkType {
+        public static final int UNKNOWN = 0;
         public static final int GERAN = 1;
         public static final int UTRAN = 2;
         public static final int EUTRAN = 3;
diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index cbc9428..91d86c6 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -39,13 +39,29 @@
     private final static String TAG = "CarrierConfigManager";
 
     /**
+     * Extra included in {@link #ACTION_CARRIER_CONFIG_CHANGED} to indicate the slot index that the
+     * broadcast is for.
+     */
+    public static final String EXTRA_SLOT_INDEX = "android.telephony.extra.SLOT_INDEX";
+
+    /**
+     * Optional extra included in {@link #ACTION_CARRIER_CONFIG_CHANGED} to indicate the
+     * subscription index that the broadcast is for, if a valid one is available.
+     */
+    public static final String EXTRA_SUBSCRIPTION_INDEX =
+            SubscriptionManager.EXTRA_SUBSCRIPTION_INDEX;
+
+    /**
      * @hide
      */
     public CarrierConfigManager() {
     }
 
     /**
-     * This intent is broadcast by the system when carrier config changes.
+     * This intent is broadcast by the system when carrier config changes. An int is specified in
+     * {@link #EXTRA_SLOT_INDEX} to indicate the slot index that this is for. An optional int extra
+     * {@link #EXTRA_SUBSCRIPTION_INDEX} is included to indicate the subscription index if a valid
+     * one is available for the slot index.
      */
     public static final String
             ACTION_CARRIER_CONFIG_CHANGED = "android.telephony.action.CARRIER_CONFIG_CHANGED";
diff --git a/telephony/java/android/telephony/CellIdentityLte.java b/telephony/java/android/telephony/CellIdentityLte.java
index 7f20c8a..5f1f448 100644
--- a/telephony/java/android/telephony/CellIdentityLte.java
+++ b/telephony/java/android/telephony/CellIdentityLte.java
@@ -40,6 +40,8 @@
     private final String mAlphaLong;
     // short alpha Operator Name String or Enhanced Operator Name String
     private final String mAlphaShort;
+    // cell bandwidth, in kHz
+    private final int mBandwidth;
 
     /**
      * @hide
@@ -50,6 +52,7 @@
         mPci = Integer.MAX_VALUE;
         mTac = Integer.MAX_VALUE;
         mEarfcn = Integer.MAX_VALUE;
+        mBandwidth = Integer.MAX_VALUE;
         mAlphaLong = null;
         mAlphaShort = null;
     }
@@ -65,7 +68,8 @@
      * @hide
      */
     public CellIdentityLte(int mcc, int mnc, int ci, int pci, int tac) {
-        this(ci, pci, tac, Integer.MAX_VALUE, String.valueOf(mcc), String.valueOf(mnc), null, null);
+        this(ci, pci, tac, Integer.MAX_VALUE, Integer.MAX_VALUE, String.valueOf(mcc),
+                String.valueOf(mnc), null, null);
     }
 
     /**
@@ -80,7 +84,8 @@
      * @hide
      */
     public CellIdentityLte(int mcc, int mnc, int ci, int pci, int tac, int earfcn) {
-        this(ci, pci, tac, earfcn, String.valueOf(mcc), String.valueOf(mnc), null, null);
+        this(ci, pci, tac, earfcn, Integer.MAX_VALUE, String.valueOf(mcc), String.valueOf(mnc),
+                null, null);
     }
 
     /**
@@ -89,6 +94,7 @@
      * @param pci Physical Cell Id 0..503
      * @param tac 16-bit Tracking Area Code
      * @param earfcn 18-bit LTE Absolute RF Channel Number
+     * @param bandwidth cell bandwidth in kHz
      * @param mccStr 3-digit Mobile Country Code in string format
      * @param mncStr 2 or 3-digit Mobile Network Code in string format
      * @param alphal long alpha Operator Name String or Enhanced Operator Name String
@@ -96,19 +102,20 @@
      *
      * @hide
      */
-    public CellIdentityLte(int ci, int pci, int tac, int earfcn, String mccStr,
-                            String mncStr, String alphal, String alphas) {
+    public CellIdentityLte(int ci, int pci, int tac, int earfcn, int bandwidth, String mccStr,
+            String mncStr, String alphal, String alphas) {
         super(TAG, TYPE_LTE, mccStr, mncStr);
         mCi = ci;
         mPci = pci;
         mTac = tac;
         mEarfcn = earfcn;
+        mBandwidth = bandwidth;
         mAlphaLong = alphal;
         mAlphaShort = alphas;
     }
 
     private CellIdentityLte(CellIdentityLte cid) {
-        this(cid.mCi, cid.mPci, cid.mTac, cid.mEarfcn, cid.mMccStr,
+        this(cid.mCi, cid.mPci, cid.mTac, cid.mEarfcn, cid.mBandwidth, cid.mMccStr,
                 cid.mMncStr, cid.mAlphaLong, cid.mAlphaShort);
     }
 
@@ -163,6 +170,13 @@
     }
 
     /**
+     * @return Cell bandwidth in kHz, Integer.MAX_VALUE if unknown
+     */
+    public int getBandwidth() {
+        return mBandwidth;
+    }
+
+    /**
      * @return Mobile Country Code in string format, null if unknown
      */
     public String getMccStr() {
@@ -219,6 +233,7 @@
                 && mPci == o.mPci
                 && mTac == o.mTac
                 && mEarfcn == o.mEarfcn
+                && mBandwidth == o.mBandwidth
                 && TextUtils.equals(mMccStr, o.mMccStr)
                 && TextUtils.equals(mMncStr, o.mMncStr)
                 && TextUtils.equals(mAlphaLong, o.mAlphaLong)
@@ -232,6 +247,7 @@
         .append(" mPci=").append(mPci)
         .append(" mTac=").append(mTac)
         .append(" mEarfcn=").append(mEarfcn)
+        .append(" mBandwidth=").append(mBandwidth)
         .append(" mMcc=").append(mMccStr)
         .append(" mMnc=").append(mMncStr)
         .append(" mAlphaLong=").append(mAlphaLong)
@@ -248,6 +264,7 @@
         dest.writeInt(mPci);
         dest.writeInt(mTac);
         dest.writeInt(mEarfcn);
+        dest.writeInt(mBandwidth);
         dest.writeString(mAlphaLong);
         dest.writeString(mAlphaShort);
     }
@@ -259,6 +276,7 @@
         mPci = in.readInt();
         mTac = in.readInt();
         mEarfcn = in.readInt();
+        mBandwidth = in.readInt();
         mAlphaLong = in.readString();
         mAlphaShort = in.readString();
 
diff --git a/telephony/java/android/telephony/CellInfo.java b/telephony/java/android/telephony/CellInfo.java
index b5e4eef..9232ed7 100644
--- a/telephony/java/android/telephony/CellInfo.java
+++ b/telephony/java/android/telephony/CellInfo.java
@@ -16,8 +16,11 @@
 
 package android.telephony;
 
+import android.annotation.IntDef;
 import android.os.Parcel;
 import android.os.Parcelable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 
 /**
  * Immutable cell information from a point in time.
@@ -47,6 +50,34 @@
     /** @hide */
     public static final int TIMESTAMP_TYPE_JAVA_RIL = 4;
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({
+        CONNECTION_NONE,
+        CONNECTION_PRIMARY_SERVING,
+        CONNECTION_SECONDARY_SERVING,
+        CONNECTION_UNKNOWN
+    })
+    public @interface CellConnectionStatus {}
+
+    /**
+     * Cell is not a serving cell.
+     *
+     * <p>The cell has been measured but is neither a camped nor serving cell (3GPP 36.304).
+     */
+    public static final int CONNECTION_NONE = 0;
+
+    /** UE is connected to cell for signalling and possibly data (3GPP 36.331, 25.331). */
+    public static final int CONNECTION_PRIMARY_SERVING = 1;
+
+    /** UE is connected to cell for data (3GPP 36.331, 25.331). */
+    public static final int CONNECTION_SECONDARY_SERVING = 2;
+
+    /** Connection status is unknown. */
+    public static final int CONNECTION_UNKNOWN = Integer.MAX_VALUE;
+
+    private int mCellConnectionStatus = CONNECTION_NONE;
+
     // True if device is mRegistered to the mobile network
     private boolean mRegistered;
 
@@ -69,6 +100,7 @@
         this.mRegistered = ci.mRegistered;
         this.mTimeStampType = ci.mTimeStampType;
         this.mTimeStamp = ci.mTimeStamp;
+        this.mCellConnectionStatus = ci.mCellConnectionStatus;
     }
 
     /** True if this cell is registered to the mobile network */
@@ -90,6 +122,25 @@
     }
 
     /**
+     * Gets the connection status of this cell.
+     *
+     * @see #CONNECTION_NONE
+     * @see #CONNECTION_PRIMARY_SERVING
+     * @see #CONNECTION_SECONDARY_SERVING
+     * @see #CONNECTION_UNKNOWN
+     *
+     * @return The connection status of the cell.
+     */
+    @CellConnectionStatus
+    public int getCellConnectionStatus() {
+        return mCellConnectionStatus;
+    }
+    /** @hide */
+    public void setCellConnectionStatus(@CellConnectionStatus int cellConnectionStatus) {
+        mCellConnectionStatus = cellConnectionStatus;
+    }
+
+    /**
      * Where time stamp gets recorded.
      * @return one of TIMESTAMP_TYPE_XXXX
      *
@@ -111,7 +162,7 @@
     public int hashCode() {
         int primeNum = 31;
         return ((mRegistered ? 0 : 1) * primeNum) + ((int)(mTimeStamp / 1000) * primeNum)
-                + (mTimeStampType * primeNum);
+                + (mTimeStampType * primeNum) + (mCellConnectionStatus * primeNum);
     }
 
     @Override
@@ -125,7 +176,9 @@
         try {
             CellInfo o = (CellInfo) other;
             return mRegistered == o.mRegistered
-                    && mTimeStamp == o.mTimeStamp && mTimeStampType == o.mTimeStampType;
+                    && mTimeStamp == o.mTimeStamp
+                    && mTimeStampType == o.mTimeStampType
+                    && mCellConnectionStatus == o.mCellConnectionStatus;
         } catch (ClassCastException e) {
             return false;
         }
@@ -155,6 +208,7 @@
         timeStampType = timeStampTypeToString(mTimeStampType);
         sb.append(" mTimeStampType=").append(timeStampType);
         sb.append(" mTimeStamp=").append(mTimeStamp).append("ns");
+        sb.append(" mCellConnectionStatus=").append(mCellConnectionStatus);
 
         return sb.toString();
     }
@@ -181,6 +235,7 @@
         dest.writeInt(mRegistered ? 1 : 0);
         dest.writeInt(mTimeStampType);
         dest.writeLong(mTimeStamp);
+        dest.writeInt(mCellConnectionStatus);
     }
 
     /**
@@ -192,6 +247,7 @@
         mRegistered = (in.readInt() == 1) ? true : false;
         mTimeStampType = in.readInt();
         mTimeStamp = in.readLong();
+        mCellConnectionStatus = in.readInt();
     }
 
     /** Implement the Parcelable interface */
diff --git a/telephony/java/android/telephony/DisconnectCause.java b/telephony/java/android/telephony/DisconnectCause.java
index 56e1e64..4fa304a 100644
--- a/telephony/java/android/telephony/DisconnectCause.java
+++ b/telephony/java/android/telephony/DisconnectCause.java
@@ -310,6 +310,13 @@
      * {@hide}
      */
     public static final int DIAL_VIDEO_MODIFIED_TO_DIAL_VIDEO = 70;
+
+    /**
+     * The network has reported that an alternative emergency number has been dialed, but the user
+     * must exit airplane mode to place the call.
+     */
+    public static final int IMS_SIP_ALTERNATE_EMERGENCY_CALL = 71;
+
     //*********************************************************************************************
     // When adding a disconnect type:
     // 1) Update toString() with the newly added disconnect type.
@@ -462,6 +469,8 @@
             return "EMERGENCY_PERM_FAILURE";
         case NORMAL_UNSPECIFIED:
             return "NORMAL_UNSPECIFIED";
+        case IMS_SIP_ALTERNATE_EMERGENCY_CALL:
+            return "IMS_SIP_ALTERNATE_EMERGENCY_CALL";
         default:
             return "INVALID: " + cause;
         }
diff --git a/telephony/java/android/telephony/INetworkService.aidl b/telephony/java/android/telephony/INetworkService.aidl
new file mode 100644
index 0000000..9ef7186
--- /dev/null
+++ b/telephony/java/android/telephony/INetworkService.aidl
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.telephony.INetworkServiceCallback;
+
+/**
+ * {@hide}
+ */
+oneway interface INetworkService
+{
+    void createNetworkServiceProvider(int slotId);
+    void removeNetworkServiceProvider(int slotId);
+    void getNetworkRegistrationState(int slotId, int domain, INetworkServiceCallback callback);
+    void registerForNetworkRegistrationStateChanged(int slotId, INetworkServiceCallback callback);
+    void unregisterForNetworkRegistrationStateChanged(int slotId, INetworkServiceCallback callback);
+}
diff --git a/telephony/java/android/telephony/INetworkServiceCallback.aidl b/telephony/java/android/telephony/INetworkServiceCallback.aidl
new file mode 100644
index 0000000..520598f
--- /dev/null
+++ b/telephony/java/android/telephony/INetworkServiceCallback.aidl
@@ -0,0 +1,29 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.telephony.NetworkRegistrationState;
+
+/**
+ * Network service call back interface
+ * @hide
+ */
+oneway interface INetworkServiceCallback
+{
+    void onGetNetworkRegistrationStateComplete(int result, in NetworkRegistrationState state);
+    void onNetworkStateChanged();
+}
diff --git a/telephony/java/android/telephony/NetworkRegistrationState.aidl b/telephony/java/android/telephony/NetworkRegistrationState.aidl
new file mode 100644
index 0000000..98cba77
--- /dev/null
+++ b/telephony/java/android/telephony/NetworkRegistrationState.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+parcelable NetworkRegistrationState;
diff --git a/telephony/java/android/telephony/NetworkRegistrationState.java b/telephony/java/android/telephony/NetworkRegistrationState.java
new file mode 100644
index 0000000..e051069
--- /dev/null
+++ b/telephony/java/android/telephony/NetworkRegistrationState.java
@@ -0,0 +1,258 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.annotation.IntDef;
+import android.annotation.Nullable;
+import android.annotation.SystemApi;
+import android.os.Parcel;
+import android.os.Parcelable;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Arrays;
+import java.util.Objects;
+
+/**
+ * Description of a mobile network registration state
+ * @hide
+ */
+@SystemApi
+public class NetworkRegistrationState implements Parcelable {
+    /**
+     * Network domain
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = "DOMAIN_", value = {DOMAIN_CS, DOMAIN_PS})
+    public @interface Domain {}
+
+    /** Circuit switching domain */
+    public static final int DOMAIN_CS = 1;
+    /** Packet switching domain */
+    public static final int DOMAIN_PS = 2;
+
+    /**
+     * Registration state
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = "REG_STATE_",
+            value = {REG_STATE_NOT_REG_NOT_SEARCHING, REG_STATE_HOME, REG_STATE_NOT_REG_SEARCHING,
+                    REG_STATE_DENIED, REG_STATE_UNKNOWN, REG_STATE_ROAMING})
+    public @interface RegState {}
+
+    /** Not registered. The device is not currently searching a new operator to register */
+    public static final int REG_STATE_NOT_REG_NOT_SEARCHING = 0;
+    /** Registered on home network */
+    public static final int REG_STATE_HOME = 1;
+    /** Not registered. The device is currently searching a new operator to register */
+    public static final int REG_STATE_NOT_REG_SEARCHING = 2;
+    /** Registration denied */
+    public static final int REG_STATE_DENIED = 3;
+    /** Registration state is unknown */
+    public static final int REG_STATE_UNKNOWN = 4;
+    /** Registered on roaming network */
+    public static final int REG_STATE_ROAMING = 5;
+
+    /**
+     * Supported service type
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = "SERVICE_TYPE_",
+            value = {SERVICE_TYPE_VOICE, SERVICE_TYPE_DATA, SERVICE_TYPE_SMS, SERVICE_TYPE_VIDEO,
+                    SERVICE_TYPE_EMERGENCY})
+    public @interface ServiceType {}
+
+    public static final int SERVICE_TYPE_VOICE = 1;
+    public static final int SERVICE_TYPE_DATA = 2;
+    public static final int SERVICE_TYPE_SMS = 3;
+    public static final int SERVICE_TYPE_VIDEO = 4;
+    public static final int SERVICE_TYPE_EMERGENCY = 5;
+
+    /** {@link AccessNetworkConstants.TransportType}*/
+    private final int mTransportType;
+
+    @Domain
+    private final int mDomain;
+
+    @RegState
+    private final int mRegState;
+
+    private final int mAccessNetworkTechnology;
+
+    private final int mReasonForDenial;
+
+    private final boolean mEmergencyOnly;
+
+    private final int[] mAvailableServices;
+
+    @Nullable
+    private final CellIdentity mCellIdentity;
+
+
+    /**
+     * @param transportType Transport type. Must be {@link AccessNetworkConstants.TransportType}
+     * @param domain Network domain. Must be DOMAIN_CS or DOMAIN_PS.
+     * @param regState Network registration state.
+     * @param accessNetworkTechnology See TelephonyManager NETWORK_TYPE_XXXX.
+     * @param reasonForDenial Reason for denial if the registration state is DENIED.
+     * @param availableServices The supported service.
+     * @param cellIdentity The identity representing a unique cell
+     */
+    public NetworkRegistrationState(int transportType, int domain, int regState,
+            int accessNetworkTechnology, int reasonForDenial, boolean emergencyOnly,
+            int[] availableServices, @Nullable CellIdentity cellIdentity) {
+        mTransportType = transportType;
+        mDomain = domain;
+        mRegState = regState;
+        mAccessNetworkTechnology = accessNetworkTechnology;
+        mReasonForDenial = reasonForDenial;
+        mAvailableServices = availableServices;
+        mCellIdentity = cellIdentity;
+        mEmergencyOnly = emergencyOnly;
+    }
+
+    protected NetworkRegistrationState(Parcel source) {
+        mTransportType = source.readInt();
+        mDomain = source.readInt();
+        mRegState = source.readInt();
+        mAccessNetworkTechnology = source.readInt();
+        mReasonForDenial = source.readInt();
+        mEmergencyOnly = source.readBoolean();
+        mAvailableServices = source.createIntArray();
+        mCellIdentity = source.readParcelable(CellIdentity.class.getClassLoader());
+    }
+
+    /**
+     * @return The transport type.
+     */
+    public int getTransportType() { return mTransportType; }
+
+    /**
+     * @return The network domain.
+     */
+    public @Domain int getDomain() { return mDomain; }
+
+    /**
+     * @return The registration state.
+     */
+    public @RegState int getRegState() {
+        return mRegState;
+    }
+
+    /**
+     * @return Whether emergency is enabled.
+     */
+    public boolean isEmergencyEnabled() { return mEmergencyOnly; }
+
+    /**
+     * @return List of available service types.
+     */
+    public int[] getAvailableServices() { return mAvailableServices; }
+
+    /**
+     * @return The access network technology. Must be one of TelephonyManager.NETWORK_TYPE_XXXX.
+     */
+    public int getAccessNetworkTechnology() {
+        return mAccessNetworkTechnology;
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    private static String regStateToString(int regState) {
+        switch (regState) {
+            case REG_STATE_NOT_REG_NOT_SEARCHING: return "NOT_REG_NOT_SEARCHING";
+            case REG_STATE_HOME: return "HOME";
+            case REG_STATE_NOT_REG_SEARCHING: return "NOT_REG_SEARCHING";
+            case REG_STATE_DENIED: return "DENIED";
+            case REG_STATE_UNKNOWN: return "UNKNOWN";
+            case REG_STATE_ROAMING: return "ROAMING";
+        }
+        return "Unknown reg state " + regState;
+    }
+
+    @Override
+    public String toString() {
+        return new StringBuilder("NetworkRegistrationState{")
+                .append("transportType=").append(mTransportType)
+                .append(" domain=").append((mDomain == DOMAIN_CS) ? "CS" : "PS")
+                .append(" regState=").append(regStateToString(mRegState))
+                .append(" accessNetworkTechnology=")
+                .append(TelephonyManager.getNetworkTypeName(mAccessNetworkTechnology))
+                .append(" reasonForDenial=").append(mReasonForDenial)
+                .append(" emergencyEnabled=").append(mEmergencyOnly)
+                .append(" supportedServices=").append(mAvailableServices)
+                .append(" cellIdentity=").append(mCellIdentity)
+                .append("}").toString();
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(mTransportType, mDomain, mRegState, mAccessNetworkTechnology,
+                mReasonForDenial, mEmergencyOnly, mAvailableServices, mCellIdentity);
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+
+        if (o == null || !(o instanceof NetworkRegistrationState)) {
+            return false;
+        }
+
+        NetworkRegistrationState other = (NetworkRegistrationState) o;
+        return mTransportType == other.mTransportType
+                && mDomain == other.mDomain
+                && mRegState == other.mRegState
+                && mAccessNetworkTechnology == other.mAccessNetworkTechnology
+                && mReasonForDenial == other.mReasonForDenial
+                && mEmergencyOnly == other.mEmergencyOnly
+                && (mAvailableServices == other.mAvailableServices
+                    || Arrays.equals(mAvailableServices, other.mAvailableServices))
+                && mCellIdentity == other.mCellIdentity;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(mTransportType);
+        dest.writeInt(mDomain);
+        dest.writeInt(mRegState);
+        dest.writeInt(mAccessNetworkTechnology);
+        dest.writeInt(mReasonForDenial);
+        dest.writeBoolean(mEmergencyOnly);
+        dest.writeIntArray(mAvailableServices);
+        dest.writeParcelable(mCellIdentity, 0);
+    }
+
+    public static final Parcelable.Creator<NetworkRegistrationState> CREATOR =
+            new Parcelable.Creator<NetworkRegistrationState>() {
+        @Override
+        public NetworkRegistrationState createFromParcel(Parcel source) {
+            return new NetworkRegistrationState(source);
+        }
+
+        @Override
+        public NetworkRegistrationState[] newArray(int size) {
+            return new NetworkRegistrationState[size];
+        }
+    };
+}
diff --git a/telephony/java/android/telephony/NetworkService.java b/telephony/java/android/telephony/NetworkService.java
new file mode 100644
index 0000000..94921de
--- /dev/null
+++ b/telephony/java/android/telephony/NetworkService.java
@@ -0,0 +1,295 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.annotation.CallSuper;
+import android.annotation.SystemApi;
+import android.app.Service;
+import android.content.Intent;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.IBinder;
+import android.os.Looper;
+import android.os.Message;
+import android.os.RemoteException;
+import android.util.SparseArray;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Base class of network service. Services that extend NetworkService must register the service in
+ * their AndroidManifest to be detected by the framework. They must be protected by the permission
+ * "android.permission.BIND_NETWORK_SERVICE". The network service definition in the manifest must
+ * follow the following format:
+ * ...
+ * <service android:name=".xxxNetworkService"
+ *     android:permission="android.permission.BIND_NETWORK_SERVICE" >
+ *     <intent-filter>
+ *         <action android:name="android.telephony.NetworkService" />
+ *     </intent-filter>
+ * </service>
+ * @hide
+ */
+@SystemApi
+public abstract class NetworkService extends Service {
+
+    private final String TAG = NetworkService.class.getSimpleName();
+
+    public static final String NETWORK_SERVICE_INTERFACE = "android.telephony.NetworkService";
+    public static final String NETWORK_SERVICE_EXTRA_SLOT_ID = "android.telephony.extra.SLOT_ID";
+
+    private static final int NETWORK_SERVICE_CREATE_NETWORK_SERVICE_PROVIDER                 = 1;
+    private static final int NETWORK_SERVICE_REMOVE_NETWORK_SERVICE_PROVIDER                 = 2;
+    private static final int NETWORK_SERVICE_REMOVE_ALL_NETWORK_SERVICE_PROVIDERS            = 3;
+    private static final int NETWORK_SERVICE_GET_REGISTRATION_STATE                          = 4;
+    private static final int NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE                       = 5;
+    private static final int NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE                     = 6;
+    private static final int NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED                = 7;
+
+
+    private final HandlerThread mHandlerThread;
+
+    private final NetworkServiceHandler mHandler;
+
+    private final SparseArray<NetworkServiceProvider> mServiceMap = new SparseArray<>();
+
+    private final INetworkServiceWrapper mBinder = new INetworkServiceWrapper();
+
+    /**
+     * The abstract class of the actual network service implementation. The network service provider
+     * must extend this class to support network connection. Note that each instance of network
+     * service is associated with one physical SIM slot.
+     */
+    public class NetworkServiceProvider {
+        private final int mSlotId;
+
+        private final List<INetworkServiceCallback>
+                mNetworkRegistrationStateChangedCallbacks = new ArrayList<>();
+
+        public NetworkServiceProvider(int slotId) {
+            mSlotId = slotId;
+        }
+
+        /**
+         * @return SIM slot id the network service associated with.
+         */
+        public final int getSlotId() {
+            return mSlotId;
+        }
+
+        /**
+         * API to get network registration state. The result will be passed to the callback.
+         * @param domain
+         * @param callback
+         * @return SIM slot id the network service associated with.
+         */
+        public void getNetworkRegistrationState(int domain, NetworkServiceCallback callback) {
+            callback.onGetNetworkRegistrationStateComplete(
+                    NetworkServiceCallback.RESULT_ERROR_UNSUPPORTED, null);
+        }
+
+        public final void notifyNetworkRegistrationStateChanged() {
+            mHandler.obtainMessage(NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED,
+                    mSlotId, 0, null).sendToTarget();
+        }
+
+        private void registerForStateChanged(INetworkServiceCallback callback) {
+            synchronized (mNetworkRegistrationStateChangedCallbacks) {
+                mNetworkRegistrationStateChangedCallbacks.add(callback);
+            }
+        }
+
+        private void unregisterForStateChanged(INetworkServiceCallback callback) {
+            synchronized (mNetworkRegistrationStateChangedCallbacks) {
+                mNetworkRegistrationStateChangedCallbacks.remove(callback);
+            }
+        }
+
+        private void notifyStateChangedToCallbacks() {
+            for (INetworkServiceCallback callback : mNetworkRegistrationStateChangedCallbacks) {
+                try {
+                    callback.onNetworkStateChanged();
+                } catch (RemoteException exception) {
+                    // Doing nothing.
+                }
+            }
+        }
+
+        /**
+         * Called when the instance of network service is destroyed (e.g. got unbind or binder died).
+         */
+        @CallSuper
+        protected void onDestroy() {
+            mNetworkRegistrationStateChangedCallbacks.clear();
+        }
+    }
+
+    private class NetworkServiceHandler extends Handler {
+
+        NetworkServiceHandler(Looper looper) {
+            super(looper);
+        }
+
+        @Override
+        public void handleMessage(Message message) {
+            final int slotId = message.arg1;
+            final INetworkServiceCallback callback = (INetworkServiceCallback) message.obj;
+
+            NetworkServiceProvider serviceProvider = mServiceMap.get(slotId);
+
+            switch (message.what) {
+                case NETWORK_SERVICE_CREATE_NETWORK_SERVICE_PROVIDER:
+                    // If the service provider doesn't exist yet, we try to create it.
+                    if (serviceProvider == null) {
+                        mServiceMap.put(slotId, createNetworkServiceProvider(slotId));
+                    }
+                    break;
+                case NETWORK_SERVICE_REMOVE_NETWORK_SERVICE_PROVIDER:
+                    // If the service provider doesn't exist yet, we try to create it.
+                    if (serviceProvider != null) {
+                        serviceProvider.onDestroy();
+                        mServiceMap.remove(slotId);
+                    }
+                    break;
+                case NETWORK_SERVICE_REMOVE_ALL_NETWORK_SERVICE_PROVIDERS:
+                    for (int i = 0; i < mServiceMap.size(); i++) {
+                        serviceProvider = mServiceMap.get(i);
+                        if (serviceProvider != null) {
+                            serviceProvider.onDestroy();
+                        }
+                    }
+                    mServiceMap.clear();
+                    break;
+                case NETWORK_SERVICE_GET_REGISTRATION_STATE:
+                    if (serviceProvider == null) break;
+                    int domainId = message.arg2;
+                    serviceProvider.getNetworkRegistrationState(domainId,
+                            new NetworkServiceCallback(callback));
+
+                    break;
+                case NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE:
+                    if (serviceProvider == null) break;
+                    serviceProvider.registerForStateChanged(callback);
+                    break;
+                case NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE:
+                    if (serviceProvider == null) break;
+                    serviceProvider.unregisterForStateChanged(callback);
+                    break;
+                case NETWORK_SERVICE_INDICATION_NETWORK_STATE_CHANGED:
+                    if (serviceProvider == null) break;
+                    serviceProvider.notifyStateChangedToCallbacks();
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+    /** @hide */
+    protected NetworkService() {
+        mHandlerThread = new HandlerThread(TAG);
+        mHandlerThread.start();
+
+        mHandler = new NetworkServiceHandler(mHandlerThread.getLooper());
+        log("network service created");
+    }
+
+    /**
+     * Create the instance of {@link NetworkServiceProvider}. Network service provider must override
+     * this method to facilitate the creation of {@link NetworkServiceProvider} instances. The system
+     * will call this method after binding the network service for each active SIM slot id.
+     *
+     * @param slotId SIM slot id the network service associated with.
+     * @return Network service object
+     */
+    protected abstract NetworkServiceProvider createNetworkServiceProvider(int slotId);
+
+    /** @hide */
+    @Override
+    public IBinder onBind(Intent intent) {
+        if (intent == null || !NETWORK_SERVICE_INTERFACE.equals(intent.getAction())) {
+            loge("Unexpected intent " + intent);
+            return null;
+        }
+
+        return mBinder;
+    }
+
+    /** @hide */
+    @Override
+    public boolean onUnbind(Intent intent) {
+        mHandler.obtainMessage(NETWORK_SERVICE_REMOVE_ALL_NETWORK_SERVICE_PROVIDERS, 0,
+                0, null).sendToTarget();
+
+        return false;
+    }
+
+    /** @hide */
+    @Override
+    public void onDestroy() {
+        mHandlerThread.quit();
+    }
+
+    /**
+     * A wrapper around INetworkService that forwards calls to implementations of
+     * {@link NetworkService}.
+     */
+    private class INetworkServiceWrapper extends INetworkService.Stub {
+
+        @Override
+        public void createNetworkServiceProvider(int slotId) {
+            mHandler.obtainMessage(NETWORK_SERVICE_CREATE_NETWORK_SERVICE_PROVIDER, slotId,
+                    0, null).sendToTarget();
+        }
+
+        @Override
+        public void removeNetworkServiceProvider(int slotId) {
+            mHandler.obtainMessage(NETWORK_SERVICE_REMOVE_NETWORK_SERVICE_PROVIDER, slotId,
+                    0, null).sendToTarget();
+        }
+
+        @Override
+        public void getNetworkRegistrationState(
+                int slotId, int domain, INetworkServiceCallback callback) {
+            mHandler.obtainMessage(NETWORK_SERVICE_GET_REGISTRATION_STATE, slotId,
+                    domain, callback).sendToTarget();
+        }
+
+        @Override
+        public void registerForNetworkRegistrationStateChanged(
+                int slotId, INetworkServiceCallback callback) {
+            mHandler.obtainMessage(NETWORK_SERVICE_REGISTER_FOR_STATE_CHANGE, slotId,
+                    0, callback).sendToTarget();
+        }
+
+        @Override
+        public void unregisterForNetworkRegistrationStateChanged(
+                int slotId,INetworkServiceCallback callback) {
+            mHandler.obtainMessage(NETWORK_SERVICE_UNREGISTER_FOR_STATE_CHANGE, slotId,
+                    0, callback).sendToTarget();
+        }
+    }
+
+    private final void log(String s) {
+        Rlog.d(TAG, s);
+    }
+
+    private final void loge(String s) {
+        Rlog.e(TAG, s);
+    }
+}
diff --git a/telephony/java/android/telephony/NetworkServiceCallback.java b/telephony/java/android/telephony/NetworkServiceCallback.java
new file mode 100644
index 0000000..92ebf36
--- /dev/null
+++ b/telephony/java/android/telephony/NetworkServiceCallback.java
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+import android.annotation.IntDef;
+import android.annotation.SystemApi;
+import android.os.RemoteException;
+import android.telephony.NetworkService.NetworkServiceProvider;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.ref.WeakReference;
+
+/**
+ * Network service callback. Object of this class is passed to NetworkServiceProvider upon
+ * calling getNetworkRegistrationState, to receive asynchronous feedback from NetworkServiceProvider
+ * upon onGetNetworkRegistrationStateComplete. It's like a wrapper of INetworkServiceCallback
+ * because INetworkServiceCallback can't be a parameter type in public APIs.
+ *
+ * @hide
+ */
+@SystemApi
+public class NetworkServiceCallback {
+
+    private static final String mTag = NetworkServiceCallback.class.getSimpleName();
+
+    /**
+     * Result of network requests
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({RESULT_SUCCESS, RESULT_ERROR_UNSUPPORTED, RESULT_ERROR_INVALID_ARG, RESULT_ERROR_BUSY,
+            RESULT_ERROR_ILLEGAL_STATE, RESULT_ERROR_FAILED})
+    public @interface Result {}
+
+    /** Request is completed successfully */
+    public static final int RESULT_SUCCESS              = 0;
+    /** Request is not support */
+    public static final int RESULT_ERROR_UNSUPPORTED    = 1;
+    /** Request contains invalid arguments */
+    public static final int RESULT_ERROR_INVALID_ARG    = 2;
+    /** Service is busy */
+    public static final int RESULT_ERROR_BUSY           = 3;
+    /** Request sent in illegal state */
+    public static final int RESULT_ERROR_ILLEGAL_STATE  = 4;
+    /** Request failed */
+    public static final int RESULT_ERROR_FAILED         = 5;
+
+    private final WeakReference<INetworkServiceCallback> mCallback;
+
+    /** @hide */
+    public NetworkServiceCallback(INetworkServiceCallback callback) {
+        mCallback = new WeakReference<>(callback);
+    }
+
+    /**
+     * Called to indicate result of
+     * {@link NetworkServiceProvider#getNetworkRegistrationState(int, NetworkServiceCallback)}
+     *
+     * @param result Result status like {@link NetworkServiceCallback#RESULT_SUCCESS} or
+     *                {@link NetworkServiceCallback#RESULT_ERROR_UNSUPPORTED}
+     * @param state The state information to be returned to callback.
+     */
+    public void onGetNetworkRegistrationStateComplete(int result, NetworkRegistrationState state) {
+        INetworkServiceCallback callback = mCallback.get();
+        if (callback != null) {
+            try {
+                callback.onGetNetworkRegistrationStateComplete(result, state);
+            } catch (RemoteException e) {
+                Rlog.e(mTag, "Failed to onGetNetworkRegistrationStateComplete on the remote");
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/telephony/java/android/telephony/ServiceState.java b/telephony/java/android/telephony/ServiceState.java
index d4b4b88..90a3677 100644
--- a/telephony/java/android/telephony/ServiceState.java
+++ b/telephony/java/android/telephony/ServiceState.java
@@ -17,6 +17,8 @@
 package android.telephony;
 
 import android.annotation.IntDef;
+import android.annotation.Nullable;
+import android.annotation.SystemApi;
 import android.os.Bundle;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -24,6 +26,10 @@
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
+import java.util.Arrays;
+
+import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Contains phone state and service related information.
@@ -32,6 +38,7 @@
  *
  * <ul>
  *   <li>Service state: IN_SERVICE, OUT_OF_SERVICE, EMERGENCY_ONLY, POWER_OFF
+ *   <li>Duplex mode: UNKNOWN, FDD, TDD
  *   <li>Roaming indicator
  *   <li>Operator name, short name and numeric id
  *   <li>Network selection mode
@@ -67,6 +74,26 @@
      */
     public static final int STATE_POWER_OFF = 3;
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({DUPLEX_MODE_UNKNOWN, DUPLEX_MODE_FDD, DUPLEX_MODE_TDD})
+    public @interface DuplexMode {}
+
+    /**
+     * Duplex mode for the phone is unknown.
+     */
+    public static final int DUPLEX_MODE_UNKNOWN = 0;
+
+    /**
+     * Duplex mode for the phone is frequency-division duplexing.
+     */
+    public static final int DUPLEX_MODE_FDD = 1;
+
+    /**
+     * Duplex mode for the phone is time-division duplexing.
+     */
+    public static final int DUPLEX_MODE_TDD = 2;
+
     /**
      * RIL level registration state values from ril.h
      * ((const char **)response)[0] is registration state 0-6,
@@ -282,10 +309,15 @@
 
     private boolean mIsUsingCarrierAggregation;
 
+    private int mChannelNumber;
+    private int[] mCellBandwidths = new int[0];
+
     /* EARFCN stands for E-UTRA Absolute Radio Frequency Channel Number,
      * Reference: 3GPP TS 36.104 5.4.3 */
     private int mLteEarfcnRsrpBoost = 0;
 
+    private List<NetworkRegistrationState> mNetworkRegistrationStates = new ArrayList<>();
+
     /**
      * get String description of roaming type
      * @hide
@@ -366,6 +398,7 @@
         mIsDataRoamingFromRegistration = s.mIsDataRoamingFromRegistration;
         mIsUsingCarrierAggregation = s.mIsUsingCarrierAggregation;
         mLteEarfcnRsrpBoost = s.mLteEarfcnRsrpBoost;
+        mNetworkRegistrationStates = new ArrayList<>(s.mNetworkRegistrationStates);
     }
 
     /**
@@ -396,6 +429,10 @@
         mIsDataRoamingFromRegistration = in.readInt() != 0;
         mIsUsingCarrierAggregation = in.readInt() != 0;
         mLteEarfcnRsrpBoost = in.readInt();
+        mNetworkRegistrationStates = new ArrayList<>();
+        in.readList(mNetworkRegistrationStates, NetworkRegistrationState.class.getClassLoader());
+        mChannelNumber = in.readInt();
+        mCellBandwidths = in.createIntArray();
     }
 
     public void writeToParcel(Parcel out, int flags) {
@@ -423,6 +460,9 @@
         out.writeInt(mIsDataRoamingFromRegistration ? 1 : 0);
         out.writeInt(mIsUsingCarrierAggregation ? 1 : 0);
         out.writeInt(mLteEarfcnRsrpBoost);
+        out.writeList(mNetworkRegistrationStates);
+        out.writeInt(mChannelNumber);
+        out.writeIntArray(mCellBandwidths);
     }
 
     public int describeContents() {
@@ -476,6 +516,43 @@
     }
 
     /**
+     * Get the current duplex mode
+     *
+     * @see #DUPLEX_MODE_UNKNOWN
+     * @see #DUPLEX_MODE_FDD
+     * @see #DUPLEX_MODE_TDD
+     *
+     * @return Current {@code DuplexMode} for the phone
+     */
+    @DuplexMode
+    public int getDuplexMode() {
+        // TODO(b/72117602) determine duplex mode from channel number, using 3GPP 36.101 sections
+        // 5.7.3-1 and 5.5-1
+        return DUPLEX_MODE_UNKNOWN;
+    }
+
+    /**
+     * Get the channel number of the current primary serving cell, or -1 if unknown
+     *
+     * <p>This is EARFCN for LTE, UARFCN for UMTS, and ARFCN for GSM.
+     *
+     * @return Channel number of primary serving cell
+     */
+    public int getChannelNumber() {
+        return mChannelNumber;
+    }
+
+    /**
+     * Get an array of cell bandwidths (kHz) for the current serving cells
+     *
+     * @return Current serving cell bandwidths
+     */
+    @Nullable
+    public int[] getCellBandwidths() {
+        return mCellBandwidths;
+    }
+
+    /**
      * Get current roaming indicator of phone
      * (note: not just decoding from TS 27.007 7.2)
      *
@@ -703,6 +780,8 @@
                 + (mDataRegState * 37)
                 + mVoiceRoamingType
                 + mDataRoamingType
+                + mChannelNumber
+                + Arrays.hashCode(mCellBandwidths)
                 + (mIsManualNetworkSelection ? 1 : 0)
                 + ((null == mVoiceOperatorAlphaLong) ? 0 : mVoiceOperatorAlphaLong.hashCode())
                 + ((null == mVoiceOperatorAlphaShort) ? 0 : mVoiceOperatorAlphaShort.hashCode())
@@ -735,6 +814,8 @@
                 && mIsManualNetworkSelection == s.mIsManualNetworkSelection
                 && mVoiceRoamingType == s.mVoiceRoamingType
                 && mDataRoamingType == s.mDataRoamingType
+                && mChannelNumber == s.mChannelNumber
+                && Arrays.equals(mCellBandwidths, s.mCellBandwidths)
                 && equalsHandlesNulls(mVoiceOperatorAlphaLong, s.mVoiceOperatorAlphaLong)
                 && equalsHandlesNulls(mVoiceOperatorAlphaShort, s.mVoiceOperatorAlphaShort)
                 && equalsHandlesNulls(mVoiceOperatorNumeric, s.mVoiceOperatorNumeric)
@@ -751,13 +832,14 @@
                         s.mCdmaDefaultRoamingIndicator)
                 && mIsEmergencyOnly == s.mIsEmergencyOnly
                 && mIsDataRoamingFromRegistration == s.mIsDataRoamingFromRegistration
-                && mIsUsingCarrierAggregation == s.mIsUsingCarrierAggregation);
+                && mIsUsingCarrierAggregation == s.mIsUsingCarrierAggregation)
+                && mNetworkRegistrationStates.containsAll(s.mNetworkRegistrationStates);
     }
 
     /**
      * Convert radio technology to String
      *
-     * @param radioTechnology
+     * @param rt radioTechnology
      * @return String representation of the RAT
      *
      * @hide
@@ -863,6 +945,8 @@
             .append("(" + rilServiceStateToString(mVoiceRegState) + ")")
             .append(", mDataRegState=").append(mDataRegState)
             .append("(" + rilServiceStateToString(mDataRegState) + ")")
+            .append(", mChannelNumber=").append(mChannelNumber)
+            .append(", mCellBandwidths=").append(Arrays.toString(mCellBandwidths))
             .append(", mVoiceRoamingType=").append(getRoamingLogString(mVoiceRoamingType))
             .append(", mDataRoamingType=").append(getRoamingLogString(mDataRoamingType))
             .append(", mVoiceOperatorAlphaLong=").append(mVoiceOperatorAlphaLong)
@@ -884,6 +968,7 @@
             .append(", mIsDataRoamingFromRegistration=").append(mIsDataRoamingFromRegistration)
             .append(", mIsUsingCarrierAggregation=").append(mIsUsingCarrierAggregation)
             .append(", mLteEarfcnRsrpBoost=").append(mLteEarfcnRsrpBoost)
+            .append(", mNetworkRegistrationStates=").append(mNetworkRegistrationStates)
             .append("}").toString();
     }
 
@@ -893,6 +978,8 @@
         mDataRegState = state;
         mVoiceRoamingType = ROAMING_TYPE_NOT_ROAMING;
         mDataRoamingType = ROAMING_TYPE_NOT_ROAMING;
+        mChannelNumber = -1;
+        mCellBandwidths = new int[0];
         mVoiceOperatorAlphaLong = null;
         mVoiceOperatorAlphaShort = null;
         mVoiceOperatorNumeric = null;
@@ -913,6 +1000,7 @@
         mIsDataRoamingFromRegistration = false;
         mIsUsingCarrierAggregation = false;
         mLteEarfcnRsrpBoost = 0;
+        mNetworkRegistrationStates = new ArrayList<>();
     }
 
     public void setStateOutOfService() {
@@ -940,6 +1028,16 @@
         if (VDBG) Rlog.d(LOG_TAG, "[ServiceState] setDataRegState=" + mDataRegState);
     }
 
+    /** @hide */
+    public void setCellBandwidths(int[] bandwidths) {
+        mCellBandwidths = bandwidths;
+    }
+
+    /** @hide */
+    public void setChannelNumber(int channelNumber) {
+        mChannelNumber = channelNumber;
+    }
+
     public void setRoaming(boolean roaming) {
         mVoiceRoamingType = (roaming ? ROAMING_TYPE_UNKNOWN : ROAMING_TYPE_NOT_ROAMING);
         mDataRoamingType = mVoiceRoamingType;
@@ -1088,6 +1186,8 @@
         mIsDataRoamingFromRegistration = m.getBoolean("isDataRoamingFromRegistration");
         mIsUsingCarrierAggregation = m.getBoolean("isUsingCarrierAggregation");
         mLteEarfcnRsrpBoost = m.getInt("LteEarfcnRsrpBoost");
+        mChannelNumber = m.getInt("ChannelNumber");
+        mCellBandwidths = m.getIntArray("CellBandwidths");
     }
 
     /**
@@ -1119,6 +1219,8 @@
         m.putBoolean("isDataRoamingFromRegistration", mIsDataRoamingFromRegistration);
         m.putBoolean("isUsingCarrierAggregation", mIsUsingCarrierAggregation);
         m.putInt("LteEarfcnRsrpBoost", mLteEarfcnRsrpBoost);
+        m.putInt("ChannelNumber", mChannelNumber);
+        m.putIntArray("CellBandwidths", mCellBandwidths);
     }
 
     /** @hide */
@@ -1394,4 +1496,52 @@
 
         return newSs;
     }
+
+    /**
+     * Get all of the available network registration states.
+     *
+     * @return List of registration states
+     * @hide
+     */
+    @SystemApi
+    public List<NetworkRegistrationState> getNetworkRegistrationStates() {
+        return mNetworkRegistrationStates;
+    }
+
+    /**
+     * Get the network registration states with given transport type.
+     *
+     * @param transportType The transport type. See {@link AccessNetworkConstants.TransportType}
+     * @return List of registration states.
+     * @hide
+     */
+    @SystemApi
+    public List<NetworkRegistrationState> getNetworkRegistrationStates(int transportType) {
+        List<NetworkRegistrationState> list = new ArrayList<>();
+        for (NetworkRegistrationState networkRegistrationState : mNetworkRegistrationStates) {
+            if (networkRegistrationState.getTransportType() == transportType) {
+                list.add(networkRegistrationState);
+            }
+        }
+        return list;
+    }
+
+    /**
+     * Get the network registration states with given transport type and domain.
+     *
+     * @param transportType The transport type. See {@link AccessNetworkConstants.TransportType}
+     * @param domain The network domain. Must be DOMAIN_CS or DOMAIN_PS.
+     * @return The matching NetworkRegistrationState.
+     * @hide
+     */
+    @SystemApi
+    public NetworkRegistrationState getNetworkRegistrationStates(int transportType, int domain) {
+        for (NetworkRegistrationState networkRegistrationState : mNetworkRegistrationStates) {
+            if (networkRegistrationState.getTransportType() == transportType
+                    && networkRegistrationState.getDomain() == domain) {
+                return networkRegistrationState;
+            }
+        }
+        return null;
+    }
 }
diff --git a/telephony/java/android/telephony/SmsManager.java b/telephony/java/android/telephony/SmsManager.java
index 5d88cf0..0874b86 100644
--- a/telephony/java/android/telephony/SmsManager.java
+++ b/telephony/java/android/telephony/SmsManager.java
@@ -1134,7 +1134,11 @@
 
     // SMS send failure result codes
 
-    /** No error. {@hide}*/
+    /**
+     * No error.
+     * @hide
+     */
+    @SystemApi
     static public final int RESULT_ERROR_NONE    = 0;
     /** Generic failure cause */
     static public final int RESULT_ERROR_GENERIC_FAILURE    = 1;
@@ -1146,12 +1150,113 @@
     static public final int RESULT_ERROR_NO_SERVICE         = 4;
     /** Failed because we reached the sending queue limit. */
     static public final int RESULT_ERROR_LIMIT_EXCEEDED     = 5;
-    /** Failed because FDN is enabled. {@hide} */
+    /**
+     * Failed because FDN is enabled.
+     * @hide
+     */
+    @SystemApi
     static public final int RESULT_ERROR_FDN_CHECK_FAILURE  = 6;
     /** Failed because user denied the sending of this short code. */
     static public final int RESULT_ERROR_SHORT_CODE_NOT_ALLOWED = 7;
     /** Failed because the user has denied this app ever send premium short codes. */
     static public final int RESULT_ERROR_SHORT_CODE_NEVER_ALLOWED = 8;
+    /**
+     * Failed because the radio was not available
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_RADIO_NOT_AVAILABLE = 9;
+    /**
+     * Failed because of network rejection
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_NETWORK_REJECT = 10;
+    /**
+     * Failed because of invalid arguments
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_INVALID_ARGUMENTS = 11;
+    /**
+     * Failed because of an invalid state
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_INVALID_STATE = 12;
+    /**
+     * Failed because there is no memory
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_NO_MEMORY = 13;
+    /**
+     * Failed because the sms format is not valid
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_INVALID_SMS_FORMAT = 14;
+    /**
+     * Failed because of a system error
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_SYSTEM_ERROR = 15;
+    /**
+     * Failed because of a modem error
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_MODEM_ERROR = 16;
+    /**
+     * Failed because of a network error
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_NETWORK_ERROR = 17;
+    /**
+     * Failed because of an encoding error
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_ENCODING_ERROR = 18;
+    /**
+     * Failed because of an invalid smsc address
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_INVALID_SMSC_ADDRESS = 19;
+    /**
+     * Failed because the operation is not allowed
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_OPERATION_NOT_ALLOWED = 20;
+    /**
+     * Failed because of an internal error
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_INTERNAL_ERROR = 21;
+    /**
+     * Failed because there are no resources
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_NO_RESOURCES = 22;
+    /**
+     * Failed because the operation was cancelled
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_CANCELLED = 23;
+    /**
+     * Failed because the request is not supported
+     * @hide
+     */
+    @SystemApi
+    static public final int RESULT_REQUEST_NOT_SUPPORTED = 24;
+
 
     static private final String PHONE_PACKAGE_NAME = "com.android.phone";
 
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 2bdbfdd..0a6d960 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -22,14 +22,13 @@
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SdkConstant;
-import android.annotation.SuppressLint;
 import android.annotation.SdkConstant.SdkConstantType;
+import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
 import android.annotation.WorkerThread;
 import android.app.ActivityThread;
 import android.app.PendingIntent;
-import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.net.ConnectivityManager;
@@ -43,7 +42,6 @@
 import android.os.ResultReceiver;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
-import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
 import android.service.carrier.CarrierIdentifier;
 import android.telecom.PhoneAccount;
@@ -63,7 +61,6 @@
 import com.android.internal.telephony.IPhoneSubInfo;
 import com.android.internal.telephony.ITelephony;
 import com.android.internal.telephony.ITelephonyRegistry;
-import com.android.internal.telephony.OperatorInfo;
 import com.android.internal.telephony.PhoneConstants;
 import com.android.internal.telephony.RILConstants;
 import com.android.internal.telephony.TelephonyProperties;
@@ -2601,6 +2598,53 @@
         }
     }
 
+    /**
+     * Gets all the UICC slots.
+     *
+     * @return UiccSlotInfo array.
+     *
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    public UiccSlotInfo[] getUiccSlotsInfo() {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                return null;
+            }
+            return telephony.getUiccSlotsInfo();
+        } catch (RemoteException e) {
+            return null;
+        }
+    }
+
+    /**
+     * Map logicalSlot to physicalSlot, and activate the physicalSlot if it is inactive. For
+     * example, passing the physicalSlots array [1, 0] means mapping the first item 1, which is
+     * physical slot index 1, to the logical slot 0; and mapping the second item 0, which is
+     * physical slot index 0, to the logical slot 1. The index of the array means the index of the
+     * logical slots.
+     *
+     * @param physicalSlots Index i in the array representing physical slot for phone i. The array
+     *        size should be same as {@link #getPhoneCount()}.
+     * @return boolean Return true if the switch succeeds, false if the switch fails.
+     * @hide
+     */
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    public boolean switchSlots(int[] physicalSlots) {
+        try {
+            ITelephony telephony = getITelephony();
+            if (telephony == null) {
+                return false;
+            }
+            return telephony.switchSlots(physicalSlots);
+        } catch (RemoteException e) {
+            return false;
+        }
+    }
+
     //
     //
     // Subscriber Info
diff --git a/telephony/java/android/telephony/UiccSlotInfo.aidl b/telephony/java/android/telephony/UiccSlotInfo.aidl
new file mode 100644
index 0000000..5571a6c
--- /dev/null
+++ b/telephony/java/android/telephony/UiccSlotInfo.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.telephony;
+
+parcelable UiccSlotInfo;
diff --git a/telephony/java/android/telephony/UiccSlotInfo.java b/telephony/java/android/telephony/UiccSlotInfo.java
new file mode 100644
index 0000000..0b3cbad
--- /dev/null
+++ b/telephony/java/android/telephony/UiccSlotInfo.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.telephony;
+
+import android.annotation.SystemApi;
+import android.os.Parcel;
+import android.os.Parcelable;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.util.Objects;
+
+import android.annotation.IntDef;
+
+/**
+ * Class for the information of a UICC slot.
+ * @hide
+ */
+@SystemApi
+public class UiccSlotInfo implements Parcelable {
+    /**
+     * Card state.
+     * @hide
+     */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(prefix = { "CARD_STATE_INFO_" }, value = {
+            CARD_STATE_INFO_ABSENT,
+            CARD_STATE_INFO_PRESENT,
+            CARD_STATE_INFO_ERROR,
+            CARD_STATE_INFO_RESTRICTED
+    })
+    public @interface CardStateInfo {}
+
+    /** Card state absent. */
+    public static final int CARD_STATE_INFO_ABSENT = 1;
+
+    /** Card state present. */
+    public static final int CARD_STATE_INFO_PRESENT = 2;
+
+    /** Card state error. */
+    public static final int CARD_STATE_INFO_ERROR = 3;
+
+    /** Card state restricted. */
+    public static final int CARD_STATE_INFO_RESTRICTED = 4;
+
+    public final boolean isActive;
+    public final boolean isEuicc;
+    public final String cardId;
+    public final @CardStateInfo int cardStateInfo;
+
+    public static final Creator<UiccSlotInfo> CREATOR = new Creator<UiccSlotInfo>() {
+        @Override
+        public UiccSlotInfo createFromParcel(Parcel in) {
+            return new UiccSlotInfo(in);
+        }
+
+        @Override
+        public UiccSlotInfo[] newArray(int size) {
+            return new UiccSlotInfo[size];
+        }
+    };
+
+    private UiccSlotInfo(Parcel in) {
+        isActive = in.readByte() != 0;
+        isEuicc = in.readByte() != 0;
+        cardId = in.readString();
+        cardStateInfo = in.readInt();
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeByte((byte) (isActive ? 1 : 0));
+        dest.writeByte((byte) (isEuicc ? 1 : 0));
+        dest.writeString(cardId);
+        dest.writeInt(cardStateInfo);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public UiccSlotInfo(boolean isActive, boolean isEuicc, String cardId,
+            @CardStateInfo int cardStateInfo) {
+        this.isActive = isActive;
+        this.isEuicc = isEuicc;
+        this.cardId = cardId;
+        this.cardStateInfo = cardStateInfo;
+    }
+
+    public boolean getIsActive() {
+        return isActive;
+    }
+
+    public boolean getIsEuicc() {
+        return isEuicc;
+    }
+
+    public String getCardId() {
+        return cardId;
+    }
+
+    @CardStateInfo
+    public int getCardStateInfo() {
+        return cardStateInfo;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+
+        UiccSlotInfo that = (UiccSlotInfo) obj;
+        return (isActive == that.isActive)
+                && (isEuicc == that.isEuicc)
+                && (cardId == that.cardId)
+                && (cardStateInfo == that.cardStateInfo);
+    }
+
+    @Override
+    public int hashCode() {
+        int result = 1;
+        result = 31 * result + (isActive ? 1 : 0);
+        result = 31 * result + (isEuicc ? 1 : 0);
+        result = 31 * result + Objects.hashCode(cardId);
+        result = 31 * result + cardStateInfo;
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "UiccSlotInfo (isActive="
+                + isActive
+                + ", isEuicc="
+                + isEuicc
+                + ", cardId="
+                + cardId
+                + ", cardState="
+                + cardStateInfo
+                + ")";
+    }
+}
diff --git a/telephony/java/android/telephony/ims/feature/MMTelFeature.java b/telephony/java/android/telephony/ims/feature/MMTelFeature.java
index 5197107..93c316f 100644
--- a/telephony/java/android/telephony/ims/feature/MMTelFeature.java
+++ b/telephony/java/android/telephony/ims/feature/MMTelFeature.java
@@ -209,6 +209,13 @@
                 return MMTelFeature.this.getSmsFormat();
             }
         }
+
+        @Override
+        public void onSmsReady() {
+            synchronized (mLock) {
+                MMTelFeature.this.onSmsReady();
+            }
+        }
     };
 
     /**
@@ -384,25 +391,29 @@
         return null;
     }
 
-    public void setSmsListener(IImsSmsListener listener) {
+    private void setSmsListener(IImsSmsListener listener) {
         getSmsImplementation().registerSmsListener(listener);
     }
 
-    public void sendSms(int token, int messageRef, String format, String smsc, boolean isRetry,
+    private void sendSms(int token, int messageRef, String format, String smsc, boolean isRetry,
             byte[] pdu) {
         getSmsImplementation().sendSms(token, messageRef, format, smsc, isRetry, pdu);
     }
 
-    public void acknowledgeSms(int token, int messageRef,
+    private void acknowledgeSms(int token, int messageRef,
             @SmsImplBase.DeliverStatusResult int result) {
         getSmsImplementation().acknowledgeSms(token, messageRef, result);
     }
 
-    public void acknowledgeSmsReport(int token, int messageRef,
+    private void acknowledgeSmsReport(int token, int messageRef,
             @SmsImplBase.StatusReportResult int result) {
         getSmsImplementation().acknowledgeSmsReport(token, messageRef, result);
     }
 
+    private void onSmsReady() {
+        getSmsImplementation().onReady();
+    }
+
     /**
      * Must be overridden by IMS Provider to be able to support SMS over IMS. Otherwise a default
      * non-functional implementation is returned.
diff --git a/telephony/java/android/telephony/ims/internal/SmsImplBase.java b/telephony/java/android/telephony/ims/internal/SmsImplBase.java
deleted file mode 100644
index 33b23d9..0000000
--- a/telephony/java/android/telephony/ims/internal/SmsImplBase.java
+++ /dev/null
@@ -1,273 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
- */
-
-package android.telephony.ims.internal;
-
-import android.annotation.IntDef;
-import android.os.RemoteException;
-import android.telephony.SmsManager;
-import android.telephony.SmsMessage;
-import android.telephony.ims.internal.aidl.IImsSmsListener;
-import android.telephony.ims.internal.feature.MmTelFeature;
-import android.util.Log;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
-/**
- * Base implementation for SMS over IMS.
- *
- * Any service wishing to provide SMS over IMS should extend this class and implement all methods
- * that the service supports.
- * @hide
- */
-public class SmsImplBase {
-  private static final String LOG_TAG = "SmsImplBase";
-
-  /** @hide */
-  @IntDef({
-          SEND_STATUS_OK,
-          SEND_STATUS_ERROR,
-          SEND_STATUS_ERROR_RETRY,
-          SEND_STATUS_ERROR_FALLBACK
-      })
-  @Retention(RetentionPolicy.SOURCE)
-  public @interface SendStatusResult {}
-  /**
-   * Message was sent successfully.
-   */
-  public static final int SEND_STATUS_OK = 1;
-
-  /**
-   * IMS provider failed to send the message and platform should not retry falling back to sending
-   * the message using the radio.
-   */
-  public static final int SEND_STATUS_ERROR = 2;
-
-  /**
-   * IMS provider failed to send the message and platform should retry again after setting TP-RD bit
-   * to high.
-   */
-  public static final int SEND_STATUS_ERROR_RETRY = 3;
-
-  /**
-   * IMS provider failed to send the message and platform should retry falling back to sending
-   * the message using the radio.
-   */
-  public static final int SEND_STATUS_ERROR_FALLBACK = 4;
-
-  /** @hide */
-  @IntDef({
-          DELIVER_STATUS_OK,
-          DELIVER_STATUS_ERROR
-      })
-  @Retention(RetentionPolicy.SOURCE)
-  public @interface DeliverStatusResult {}
-  /**
-   * Message was delivered successfully.
-   */
-  public static final int DELIVER_STATUS_OK = 1;
-
-  /**
-   * Message was not delivered.
-   */
-  public static final int DELIVER_STATUS_ERROR = 2;
-
-  /** @hide */
-  @IntDef({
-          STATUS_REPORT_STATUS_OK,
-          STATUS_REPORT_STATUS_ERROR
-      })
-  @Retention(RetentionPolicy.SOURCE)
-  public @interface StatusReportResult {}
-
-  /**
-   * Status Report was set successfully.
-   */
-  public static final int STATUS_REPORT_STATUS_OK = 1;
-
-  /**
-   * Error while setting status report.
-   */
-  public static final int STATUS_REPORT_STATUS_ERROR = 2;
-
-
-  // Lock for feature synchronization
-  private final Object mLock = new Object();
-  private IImsSmsListener mListener;
-
-  /**
-   * Registers a listener responsible for handling tasks like delivering messages.
-   *
-   * @param listener listener to register.
-   *
-   * @hide
-   */
-  public final void registerSmsListener(IImsSmsListener listener) {
-      synchronized (mLock) {
-          mListener = listener;
-      }
-  }
-
-  /**
-   * This method will be triggered by the platform when the user attempts to send an SMS. This
-   * method should be implemented by the IMS providers to provide implementation of sending an SMS
-   * over IMS.
-   *
-   * @param token unique token generated by the platform that should be used when triggering
-   *             callbacks for this specific message.
-   * @param messageRef the message reference.
-   * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
-   *               {@link SmsMessage#FORMAT_3GPP2}.
-   * @param smsc the Short Message Service Center address.
-   * @param isRetry whether it is a retry of an already attempted message or not.
-   * @param pdu PDUs representing the contents of the message.
-   */
-  public void sendSms(int token, int messageRef, String format, String smsc, boolean isRetry,
-                      byte[] pdu) {
-    // Base implementation returns error. Should be overridden.
-    try {
-      onSendSmsResult(token, messageRef, SEND_STATUS_ERROR,
-              SmsManager.RESULT_ERROR_GENERIC_FAILURE);
-    } catch (RemoteException e) {
-      Log.e(LOG_TAG, "Can not send sms: " + e.getMessage());
-    }
-  }
-
-  /**
-   * This method will be triggered by the platform after {@link #onSmsReceived(int, String, byte[])}
-   * has been called to deliver the result to the IMS provider.
-   *
-   * @param token token provided in {@link #onSmsReceived(int, String, byte[])}
-   * @param result result of delivering the message. Valid values are defined in
-   * {@link DeliverStatusResult}
-   * @param messageRef the message reference
-   */
-  public void acknowledgeSms(int token, int messageRef, @DeliverStatusResult int result) {
-    Log.e(LOG_TAG, "acknowledgeSms() not implemented.");
-  }
-
-  /**
-   * This method will be triggered by the platform after
-   * {@link #onSmsStatusReportReceived(int, int, String, byte[])} has been called to provide the
-   * result to the IMS provider.
-   *
-   * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
-   * @param result result of delivering the message. Valid values are defined in
-   * {@link StatusReportResult}
-   * @param messageRef the message reference
-   */
-  public void acknowledgeSmsReport(int token, int messageRef, @StatusReportResult int result) {
-    Log.e(LOG_TAG, "acknowledgeSmsReport() not implemented.");
-  }
-
-  /**
-   * This method should be triggered by the IMS providers when there is an incoming message. The
-   * platform will deliver the message to the messages database and notify the IMS provider of the
-   * result by calling {@link #acknowledgeSms(int, int, int)}.
-   *
-   * This method must not be called before {@link MmTelFeature#onFeatureReady()} is called.
-   *
-   * @param token unique token generated by IMS providers that the platform will use to trigger
-   *              callbacks for this message.
-   * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
-   * {@link SmsMessage#FORMAT_3GPP2}.
-   * @param pdu PDUs representing the contents of the message.
-   * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
-   */
-  public final void onSmsReceived(int token, String format, byte[] pdu)
-          throws IllegalStateException {
-    synchronized (mLock) {
-      if (mListener == null) {
-        throw new IllegalStateException("Feature not ready.");
-      }
-      try {
-        mListener.onSmsReceived(token, format, pdu);
-      } catch (RemoteException e) {
-        Log.e(LOG_TAG, "Can not deliver sms: " + e.getMessage());
-        acknowledgeSms(token, 0, DELIVER_STATUS_ERROR);
-      }
-    }
-  }
-
-  /**
-   * This method should be triggered by the IMS providers to pass the result of the sent message
-   * to the platform.
-   *
-   * This method must not be called before {@link MmTelFeature#onFeatureReady()} is called.
-   *
-   * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
-   * @param messageRef the message reference. Should be between 0 and 255 per TS.123.040
-   * @param status result of sending the SMS. Valid values are defined in {@link SendStatusResult}
-   * @param reason reason in case status is failure. Valid values are:
-   *  {@link SmsManager#RESULT_ERROR_NONE},
-   *  {@link SmsManager#RESULT_ERROR_GENERIC_FAILURE},
-   *  {@link SmsManager#RESULT_ERROR_RADIO_OFF},
-   *  {@link SmsManager#RESULT_ERROR_NULL_PDU},
-   *  {@link SmsManager#RESULT_ERROR_NO_SERVICE},
-   *  {@link SmsManager#RESULT_ERROR_LIMIT_EXCEEDED},
-   *  {@link SmsManager#RESULT_ERROR_SHORT_CODE_NOT_ALLOWED},
-   *  {@link SmsManager#RESULT_ERROR_SHORT_CODE_NEVER_ALLOWED}
-   * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
-   * @throws RemoteException if the connection to the framework is not available. If this happens
-   *  attempting to send the SMS should be aborted.
-   */
-  public final void onSendSmsResult(int token, int messageRef, @SendStatusResult int status,
-      int reason) throws IllegalStateException, RemoteException {
-    synchronized (mLock) {
-      if (mListener == null) {
-        throw new IllegalStateException("Feature not ready.");
-      }
-      mListener.onSendSmsResult(token, messageRef, status, reason);
-    }
-  }
-
-  /**
-   * Sets the status report of the sent message.
-   *
-   * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
-   * @param messageRef the message reference.
-   * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
-   * {@link SmsMessage#FORMAT_3GPP2}.
-   * @param pdu PDUs representing the content of the status report.
-   * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
-   */
-  public final void onSmsStatusReportReceived(int token, int messageRef, String format,
-      byte[] pdu) {
-    synchronized (mLock) {
-      if (mListener == null) {
-        throw new IllegalStateException("Feature not ready.");
-      }
-      try {
-        mListener.onSmsStatusReportReceived(token, messageRef, format, pdu);
-      } catch (RemoteException e) {
-        Log.e(LOG_TAG, "Can not process sms status report: " + e.getMessage());
-        acknowledgeSmsReport(token, messageRef, STATUS_REPORT_STATUS_ERROR);
-      }
-    }
-  }
-
-  /**
-   * Returns the SMS format. Default is {@link SmsMessage#FORMAT_3GPP} unless overridden by IMS
-   * Provider.
-   *
-   * @return  the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
-   * {@link SmsMessage#FORMAT_3GPP2}.
-   */
-  public String getSmsFormat() {
-    return SmsMessage.FORMAT_3GPP;
-  }
-
-}
diff --git a/telephony/java/android/telephony/ims/internal/aidl/IImsMmTelFeature.aidl b/telephony/java/android/telephony/ims/internal/aidl/IImsMmTelFeature.aidl
index 785113f..e226ada 100644
--- a/telephony/java/android/telephony/ims/internal/aidl/IImsMmTelFeature.aidl
+++ b/telephony/java/android/telephony/ims/internal/aidl/IImsMmTelFeature.aidl
@@ -18,7 +18,6 @@
 
 import android.os.Message;
 import android.telephony.ims.internal.aidl.IImsMmTelListener;
-import android.telephony.ims.internal.aidl.IImsSmsListener;
 import android.telephony.ims.internal.aidl.IImsCapabilityCallback;
 import android.telephony.ims.internal.aidl.IImsCallSessionListener;
 import android.telephony.ims.internal.feature.CapabilityChangeRequest;
@@ -50,11 +49,4 @@
             IImsCapabilityCallback c);
     oneway void queryCapabilityConfiguration(int capability, int radioTech,
             IImsCapabilityCallback c);
-    // SMS APIs
-    void setSmsListener(IImsSmsListener l);
-    oneway void sendSms(in int token, int messageRef, String format, String smsc, boolean retry,
-            in byte[] pdu);
-    oneway void acknowledgeSms(int token, int messageRef, int result);
-    oneway void acknowledgeSmsReport(int token, int messageRef, int result);
-    String getSmsFormat();
 }
diff --git a/telephony/java/android/telephony/ims/internal/aidl/IImsSmsListener.aidl b/telephony/java/android/telephony/ims/internal/aidl/IImsSmsListener.aidl
deleted file mode 100644
index bf8d90b..0000000
--- a/telephony/java/android/telephony/ims/internal/aidl/IImsSmsListener.aidl
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Copyright (c) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.telephony.ims.internal.aidl;
-
-/**
- * See MMTelFeature for more information.
- * {@hide}
- */
-interface IImsSmsListener {
-    void onSendSmsResult(in int token, in int messageRef, in int status, in int reason);
-    void onSmsStatusReportReceived(in int token, in int messageRef, in String format,
-            in byte[] pdu);
-    void onSmsReceived(in int token, in String format, in byte[] pdu);
-}
\ No newline at end of file
diff --git a/telephony/java/android/telephony/ims/internal/feature/MmTelFeature.java b/telephony/java/android/telephony/ims/internal/feature/MmTelFeature.java
index 8d888c2..9b576c7 100644
--- a/telephony/java/android/telephony/ims/internal/feature/MmTelFeature.java
+++ b/telephony/java/android/telephony/ims/internal/feature/MmTelFeature.java
@@ -21,14 +21,10 @@
 import android.os.RemoteException;
 import android.telecom.TelecomManager;
 import android.telephony.ims.internal.ImsCallSessionListener;
-import android.telephony.ims.internal.SmsImplBase;
-import android.telephony.ims.internal.SmsImplBase.DeliverStatusResult;
-import android.telephony.ims.internal.SmsImplBase.StatusReportResult;
 import android.telephony.ims.internal.aidl.IImsCallSessionListener;
 import android.telephony.ims.internal.aidl.IImsCapabilityCallback;
 import android.telephony.ims.internal.aidl.IImsMmTelFeature;
 import android.telephony.ims.internal.aidl.IImsMmTelListener;
-import android.telephony.ims.internal.aidl.IImsSmsListener;
 import android.telephony.ims.stub.ImsRegistrationImplBase;
 import android.telephony.ims.stub.ImsEcbmImplBase;
 import android.telephony.ims.stub.ImsMultiEndpointImplBase;
@@ -68,11 +64,6 @@
         }
 
         @Override
-        public void setSmsListener(IImsSmsListener l) throws RemoteException {
-            MmTelFeature.this.setSmsListener(l);
-        }
-
-        @Override
         public int getFeatureState() throws RemoteException {
             synchronized (mLock) {
                 return MmTelFeature.this.getFeatureState();
@@ -152,35 +143,6 @@
                 IImsCapabilityCallback c) {
             queryCapabilityConfigurationInternal(capability, radioTech, c);
         }
-
-        @Override
-        public void sendSms(int token, int messageRef, String format, String smsc, boolean retry,
-                byte[] pdu) {
-            synchronized (mLock) {
-                MmTelFeature.this.sendSms(token, messageRef, format, smsc, retry, pdu);
-            }
-        }
-
-        @Override
-        public void acknowledgeSms(int token, int messageRef, int result) {
-            synchronized (mLock) {
-                MmTelFeature.this.acknowledgeSms(token, messageRef, result);
-            }
-        }
-
-        @Override
-        public void acknowledgeSmsReport(int token, int messageRef, int result) {
-            synchronized (mLock) {
-                MmTelFeature.this.acknowledgeSmsReport(token, messageRef, result);
-            }
-        }
-
-        @Override
-        public String getSmsFormat() {
-            synchronized (mLock) {
-                return MmTelFeature.this.getSmsFormat();
-            }
-        }
     };
 
     /**
@@ -292,10 +254,6 @@
         }
     }
 
-    private void setSmsListener(IImsSmsListener listener) {
-        getSmsImplementation().registerSmsListener(listener);
-    }
-
     private void queryCapabilityConfigurationInternal(int capability, int radioTech,
             IImsCapabilityCallback c) {
         boolean enabled = queryCapabilityConfiguration(capability, radioTech);
@@ -457,33 +415,6 @@
         // Base Implementation - Should be overridden
     }
 
-    private void sendSms(int token, int messageRef, String format, String smsc, boolean isRetry,
-            byte[] pdu) {
-        getSmsImplementation().sendSms(token, messageRef, format, smsc, isRetry, pdu);
-    }
-
-    private void acknowledgeSms(int token, int messageRef, @DeliverStatusResult int result) {
-        getSmsImplementation().acknowledgeSms(token, messageRef, result);
-    }
-
-    private void acknowledgeSmsReport(int token, int messageRef, @StatusReportResult int result) {
-        getSmsImplementation().acknowledgeSmsReport(token, messageRef, result);
-    }
-
-    private String getSmsFormat() {
-        return getSmsImplementation().getSmsFormat();
-    }
-
-    /**
-     * Must be overridden by IMS Provider to be able to support SMS over IMS. Otherwise a default
-     * non-functional implementation is returned.
-     *
-     * @return an instance of {@link SmsImplBase} which should be implemented by the IMS Provider.
-     */
-    protected SmsImplBase getSmsImplementation() {
-        return new SmsImplBase();
-    }
-
     /**{@inheritDoc}*/
     @Override
     public void onFeatureRemoved() {
diff --git a/telephony/java/android/telephony/ims/internal/stub/SmsImplBase.java b/telephony/java/android/telephony/ims/internal/stub/SmsImplBase.java
index 113dad4..89acc80 100644
--- a/telephony/java/android/telephony/ims/internal/stub/SmsImplBase.java
+++ b/telephony/java/android/telephony/ims/internal/stub/SmsImplBase.java
@@ -17,10 +17,10 @@
 package android.telephony.ims.internal.stub;
 
 import android.annotation.IntDef;
+import android.annotation.SystemApi;
 import android.os.RemoteException;
 import android.telephony.SmsManager;
 import android.telephony.SmsMessage;
-import android.telephony.ims.internal.feature.MmTelFeature;
 import android.util.Log;
 
 import com.android.ims.internal.IImsSmsListener;
@@ -33,11 +33,14 @@
  *
  * Any service wishing to provide SMS over IMS should extend this class and implement all methods
  * that the service supports.
+ *
  * @hide
  */
+@SystemApi
 public class SmsImplBase {
     private static final String LOG_TAG = "SmsImplBase";
 
+    /** @hide */
     @IntDef({
             SEND_STATUS_OK,
             SEND_STATUS_ERROR,
@@ -58,8 +61,8 @@
     public static final int SEND_STATUS_ERROR = 2;
 
     /**
-     * IMS provider failed to send the message and platform should retry again after setting TP-RD bit
-     * to high.
+     * IMS provider failed to send the message and platform should retry again after setting TP-RD
+     * bit to high.
      */
     public static final int SEND_STATUS_ERROR_RETRY = 3;
 
@@ -69,6 +72,7 @@
      */
     public static final int SEND_STATUS_ERROR_FALLBACK = 4;
 
+    /** @hide */
     @IntDef({
             DELIVER_STATUS_OK,
             DELIVER_STATUS_ERROR
@@ -85,6 +89,7 @@
      */
     public static final int DELIVER_STATUS_ERROR = 2;
 
+    /** @hide */
     @IntDef({
             STATUS_REPORT_STATUS_OK,
             STATUS_REPORT_STATUS_ERROR
@@ -140,21 +145,23 @@
         try {
             onSendSmsResult(token, messageRef, SEND_STATUS_ERROR,
                     SmsManager.RESULT_ERROR_GENERIC_FAILURE);
-        } catch (RemoteException e) {
+        } catch (RuntimeException e) {
             Log.e(LOG_TAG, "Can not send sms: " + e.getMessage());
         }
     }
 
     /**
-     * This method will be triggered by the platform after {@link #onSmsReceived(int, String, byte[])}
-     * has been called to deliver the result to the IMS provider.
+     * This method will be triggered by the platform after
+     * {@link #onSmsReceived(int, String, byte[])} has been called to deliver the result to the IMS
+     * provider.
      *
      * @param token token provided in {@link #onSmsReceived(int, String, byte[])}
-     * @param result result of delivering the message. Valid values are defined in
-     * {@link DeliverStatusResult}
+     * @param result result of delivering the message. Valid values are:
+     *  {@link #DELIVER_STATUS_OK},
+     *  {@link #DELIVER_STATUS_OK}
      * @param messageRef the message reference
      */
-    public void acknowledgeSms(int token, int messageRef, @DeliverStatusResult int result) {
+    public void acknowledgeSms(int token, @DeliverStatusResult int messageRef, int result) {
         Log.e(LOG_TAG, "acknowledgeSms() not implemented.");
     }
 
@@ -164,8 +171,9 @@
      * result to the IMS provider.
      *
      * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
-     * @param result result of delivering the message. Valid values are defined in
-     * {@link StatusReportResult}
+     * @param result result of delivering the message. Valid values are:
+     *  {@link #STATUS_REPORT_STATUS_OK},
+     *  {@link #STATUS_REPORT_STATUS_ERROR}
      * @param messageRef the message reference
      */
     public void acknowledgeSmsReport(int token, int messageRef, @StatusReportResult int result) {
@@ -177,20 +185,17 @@
      * platform will deliver the message to the messages database and notify the IMS provider of the
      * result by calling {@link #acknowledgeSms(int, int, int)}.
      *
-     * This method must not be called before {@link MmTelFeature#onFeatureReady()} is called.
-     *
      * @param token unique token generated by IMS providers that the platform will use to trigger
      *              callbacks for this message.
      * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
      * {@link SmsMessage#FORMAT_3GPP2}.
      * @param pdu PDUs representing the contents of the message.
-     * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
+     * @throws RuntimeException if called before {@link #onReady()} is triggered.
      */
-    public final void onSmsReceived(int token, String format, byte[] pdu)
-            throws IllegalStateException {
+    public final void onSmsReceived(int token, String format, byte[] pdu) throws RuntimeException {
         synchronized (mLock) {
             if (mListener == null) {
-                throw new IllegalStateException("Feature not ready.");
+                throw new RuntimeException("Feature not ready.");
             }
             try {
                 mListener.onSmsReceived(token, format, pdu);
@@ -205,11 +210,13 @@
      * This method should be triggered by the IMS providers to pass the result of the sent message
      * to the platform.
      *
-     * This method must not be called before {@link MmTelFeature#onFeatureReady()} is called.
-     *
      * @param token token provided in {@link #sendSms(int, int, String, String, boolean, byte[])}
      * @param messageRef the message reference. Should be between 0 and 255 per TS.123.040
-     * @param status result of sending the SMS. Valid values are defined in {@link SendStatusResult}
+     * @param status result of sending the SMS. Valid values are:
+     *  {@link #SEND_STATUS_OK},
+     *  {@link #SEND_STATUS_ERROR},
+     *  {@link #SEND_STATUS_ERROR_RETRY},
+     *  {@link #SEND_STATUS_ERROR_FALLBACK},
      * @param reason reason in case status is failure. Valid values are:
      *  {@link SmsManager#RESULT_ERROR_NONE},
      *  {@link SmsManager#RESULT_ERROR_GENERIC_FAILURE},
@@ -217,19 +224,41 @@
      *  {@link SmsManager#RESULT_ERROR_NULL_PDU},
      *  {@link SmsManager#RESULT_ERROR_NO_SERVICE},
      *  {@link SmsManager#RESULT_ERROR_LIMIT_EXCEEDED},
+     *  {@link SmsManager#RESULT_ERROR_FDN_CHECK_FAILURE},
      *  {@link SmsManager#RESULT_ERROR_SHORT_CODE_NOT_ALLOWED},
-     *  {@link SmsManager#RESULT_ERROR_SHORT_CODE_NEVER_ALLOWED}
-     * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
-     * @throws RemoteException if the connection to the framework is not available. If this happens
-     *  attempting to send the SMS should be aborted.
+     *  {@link SmsManager#RESULT_ERROR_SHORT_CODE_NEVER_ALLOWED},
+     *  {@link SmsManager#RESULT_RADIO_NOT_AVAILABLE},
+     *  {@link SmsManager#RESULT_NETWORK_REJECT},
+     *  {@link SmsManager#RESULT_INVALID_ARGUMENTS},
+     *  {@link SmsManager#RESULT_INVALID_STATE},
+     *  {@link SmsManager#RESULT_NO_MEMORY},
+     *  {@link SmsManager#RESULT_INVALID_SMS_FORMAT},
+     *  {@link SmsManager#RESULT_SYSTEM_ERROR},
+     *  {@link SmsManager#RESULT_MODEM_ERROR},
+     *  {@link SmsManager#RESULT_NETWORK_ERROR},
+     *  {@link SmsManager#RESULT_ENCODING_ERROR},
+     *  {@link SmsManager#RESULT_INVALID_SMSC_ADDRESS},
+     *  {@link SmsManager#RESULT_OPERATION_NOT_ALLOWED},
+     *  {@link SmsManager#RESULT_INTERNAL_ERROR},
+     *  {@link SmsManager#RESULT_NO_RESOURCES},
+     *  {@link SmsManager#RESULT_CANCELLED},
+     *  {@link SmsManager#RESULT_REQUEST_NOT_SUPPORTED}
+     *
+     * @throws RuntimeException if called before {@link #onReady()} is triggered or if the
+     * connection to the framework is not available. If this happens attempting to send the SMS
+     * should be aborted.
      */
-    public final void onSendSmsResult(int token, int messageRef, @SendStatusResult int status,
-            int reason) throws IllegalStateException, RemoteException {
+    public final void onSendSmsResult(int token, int messageRef,  @SendStatusResult int status,
+            int reason) throws RuntimeException {
         synchronized (mLock) {
             if (mListener == null) {
-                throw new IllegalStateException("Feature not ready.");
+                throw new RuntimeException("Feature not ready.");
             }
-            mListener.onSendSmsResult(token, messageRef, status, reason);
+            try {
+                mListener.onSendSmsResult(token, messageRef, status, reason);
+            } catch (RemoteException e) {
+                e.rethrowFromSystemServer();
+            }
         }
     }
 
@@ -241,13 +270,13 @@
      * @param format the format of the message. Valid values are {@link SmsMessage#FORMAT_3GPP} and
      * {@link SmsMessage#FORMAT_3GPP2}.
      * @param pdu PDUs representing the content of the status report.
-     * @throws IllegalStateException if called before {@link MmTelFeature#onFeatureReady()}
+     * @throws RuntimeException if called before {@link #onReady()} is triggered
      */
     public final void onSmsStatusReportReceived(int token, int messageRef, String format,
-            byte[] pdu) {
+            byte[] pdu) throws RuntimeException{
         synchronized (mLock) {
             if (mListener == null) {
-                throw new IllegalStateException("Feature not ready.");
+                throw new RuntimeException("Feature not ready.");
             }
             try {
                 mListener.onSmsStatusReportReceived(token, messageRef, format, pdu);
@@ -268,4 +297,13 @@
     public String getSmsFormat() {
       return SmsMessage.FORMAT_3GPP;
     }
+
+    /**
+     * Called when SmsImpl has been initialized and communication with the framework is set up.
+     * Any attempt by this class to access the framework before this method is called will return
+     * with an {@link RuntimeException}.
+     */
+    public void onReady() {
+        // Base Implementation - Should be overridden
+    }
 }
diff --git a/telephony/java/com/android/ims/ImsReasonInfo.java b/telephony/java/com/android/ims/ImsReasonInfo.java
index 4f6f68c..83d9bd9 100644
--- a/telephony/java/com/android/ims/ImsReasonInfo.java
+++ b/telephony/java/com/android/ims/ImsReasonInfo.java
@@ -384,6 +384,13 @@
     /** Call/IMS registration is failed/dropped because of a network detach */
     public static final int CODE_NETWORK_DETACH = 1513;
 
+    /**
+     * Call failed due to SIP code 380 (Alternative Service response) while dialing an "undetected
+     * emergency number".  This scenario is important in some regions where the carrier network will
+     * identify other non-emergency help numbers (e.g. mountain rescue) when attempting to dial.
+     */
+    public static final int CODE_SIP_ALTERNATE_EMERGENCY_CALL = 1514;
+
     /* OEM specific error codes. To be used by OEMs when they don't want to
    reveal error code which would be replaced by ERROR_UNSPECIFIED */
     public static final int CODE_OEM_CAUSE_1 = 0xf001;
diff --git a/telephony/java/com/android/ims/internal/IImsMMTelFeature.aidl b/telephony/java/com/android/ims/internal/IImsMMTelFeature.aidl
index cce39f4..10c7f3e 100644
--- a/telephony/java/com/android/ims/internal/IImsMMTelFeature.aidl
+++ b/telephony/java/com/android/ims/internal/IImsMMTelFeature.aidl
@@ -61,4 +61,5 @@
     oneway void acknowledgeSms(int token, int messageRef, int result);
     oneway void acknowledgeSmsReport(int token, int messageRef, int result);
     String getSmsFormat();
+    oneway void onSmsReady();
 }
diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index fba82ee..dfb3c34 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -47,6 +47,7 @@
 
 import java.util.List;
 
+import android.telephony.UiccSlotInfo;
 
 /**
  * Interface used to interact with the phone.  Mostly this is used by the
@@ -1444,4 +1445,19 @@
      * @hide
      */
     SignalStrength getSignalStrength(int subId);
+
+    /**
+     * Get slot info for all the UICC slots.
+     * @return UiccSlotInfo array.
+     * @hide
+     */
+    UiccSlotInfo[] getUiccSlotsInfo();
+
+    /**
+     * Map logicalSlot to physicalSlot, and activate the physicalSlot if it is inactive.
+     * @param physicalSlots Index i in the array representing physical slot for phone i. The array
+     *        size should be same as getPhoneCount().
+     * @return boolean Return true if the switch succeeds, false if the switch fails.
+     */
+    boolean switchSlots(in int[] physicalSlots);
 }
diff --git a/telephony/java/com/android/internal/telephony/RILConstants.java b/telephony/java/com/android/internal/telephony/RILConstants.java
index f804cb0..cdee9e6 100644
--- a/telephony/java/com/android/internal/telephony/RILConstants.java
+++ b/telephony/java/com/android/internal/telephony/RILConstants.java
@@ -105,6 +105,8 @@
     int DEVICE_IN_USE = 64;                   /* Operation cannot be performed because the device
                                                  is currently in use */
     int ABORTED = 65;                         /* Operation aborted */
+    int INVALID_RESPONSE = 66;                /* Invalid response sent by vendor code */
+
     // Below is list of OEM specific error codes which can by used by OEMs in case they don't want to
     // reveal particular replacement for Generic failure
     int OEM_ERROR_1 = 501;
@@ -419,6 +421,8 @@
     int RIL_REQUEST_STOP_NETWORK_SCAN = 143;
     int RIL_REQUEST_GET_SLOT_STATUS = 144;
     int RIL_REQUEST_SET_LOGICAL_TO_PHYSICAL_SLOT_MAPPING = 145;
+    int RIL_REQUEST_START_KEEPALIVE = 146;
+    int RIL_REQUEST_STOP_KEEPALIVE = 147;
 
     int RIL_RESPONSE_ACKNOWLEDGEMENT = 800;
 
@@ -474,4 +478,5 @@
     int RIL_UNSOL_CARRIER_INFO_IMSI_ENCRYPTION = 1048;
     int RIL_UNSOL_NETWORK_SCAN_RESULT = 1049;
     int RIL_UNSOL_ICC_SLOT_STATUS = 1050;
+    int RIL_UNSOL_KEEPALIVE_STATUS = 1051;
 }
diff --git a/telephony/java/com/android/internal/telephony/uicc/IccUtils.java b/telephony/java/com/android/internal/telephony/uicc/IccUtils.java
index 9f8b3a8..c095438 100644
--- a/telephony/java/com/android/internal/telephony/uicc/IccUtils.java
+++ b/telephony/java/com/android/internal/telephony/uicc/IccUtils.java
@@ -837,6 +837,13 @@
     }
 
     /**
+     * Strip all the trailing 'F' characters of a string, e.g., an ICCID.
+     */
+    public static String stripTrailingFs(String s) {
+        return s == null ? null : s.replaceAll("(?i)f*$", "");
+    }
+
+    /**
      * Converts a character of [0-9a-aA-F] to its hex value in a byte. If the character is not a
      * hex number, 0 will be returned.
      */
diff --git a/tests/FrameworkPerf/AndroidManifest.xml b/tests/FrameworkPerf/AndroidManifest.xml
index 2591aaf..d62ef9e 100644
--- a/tests/FrameworkPerf/AndroidManifest.xml
+++ b/tests/FrameworkPerf/AndroidManifest.xml
@@ -1,5 +1,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
         package="com.android.frameworkperf">
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.WAKE_LOCK" />
     <uses-sdk android:minSdkVersion="5" />
 
diff --git a/tests/OneMedia/AndroidManifest.xml b/tests/OneMedia/AndroidManifest.xml
index c6824ec..8697f1b 100644
--- a/tests/OneMedia/AndroidManifest.xml
+++ b/tests/OneMedia/AndroidManifest.xml
@@ -5,6 +5,7 @@
     android:versionName="1.0" >
 
     <uses-sdk android:minSdkVersion="19"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
 
diff --git a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
index 801a396..66e0955 100644
--- a/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
+++ b/tests/net/java/com/android/server/IpSecServiceParameterizedTest.java
@@ -19,7 +19,6 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyLong;
 import static org.mockito.Matchers.anyString;
 import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.mock;
@@ -229,7 +228,7 @@
                         anyInt(),
                         anyString(),
                         anyString(),
-                        anyLong(),
+                        anyInt(),
                         eq(TEST_SPI),
                         anyInt(),
                         anyInt(),
@@ -264,7 +263,7 @@
                         anyInt(),
                         anyString(),
                         anyString(),
-                        anyLong(),
+                        anyInt(),
                         eq(TEST_SPI),
                         anyInt(),
                         anyInt(),
diff --git a/tools/stats_log_api_gen/main.cpp b/tools/stats_log_api_gen/main.cpp
index e0e6b58..3dbb503 100644
--- a/tools/stats_log_api_gen/main.cpp
+++ b/tools/stats_log_api_gen/main.cpp
@@ -317,6 +317,7 @@
     fprintf(out, "\n");
     fprintf(out, "#include <stdint.h>\n");
     fprintf(out, "#include <vector>\n");
+    fprintf(out, "#include <set>\n");
     fprintf(out, "\n");
 
     fprintf(out, "namespace android {\n");
@@ -361,6 +362,36 @@
     fprintf(out, "};\n");
     fprintf(out, "\n");
 
+    fprintf(out, "const static std::set<int> kAtomsWithUidField = {\n");
+    for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
+        atom != atoms.decls.end(); atom++) {
+        for (vector<AtomField>::const_iterator field = atom->fields.begin();
+                field != atom->fields.end(); field++) {
+            if (field->name == "uid") {
+                string constant = make_constant_name(atom->name);
+                fprintf(out, " %s,\n", constant.c_str());
+                break;
+            }
+        }
+    }
+    fprintf(out, "};\n");
+    fprintf(out, "\n");
+
+    fprintf(out, "const static std::set<int> kAtomsWithAttributionChain = {\n");
+    for (set<AtomDecl>::const_iterator atom = atoms.decls.begin();
+        atom != atoms.decls.end(); atom++) {
+        for (vector<AtomField>::const_iterator field = atom->fields.begin();
+                field != atom->fields.end(); field++) {
+            if (field->javaType == JAVA_TYPE_ATTRIBUTION_CHAIN) {
+                string constant = make_constant_name(atom->name);
+                fprintf(out, " %s,\n", constant.c_str());
+                break;
+            }
+        }
+    }
+    fprintf(out, "};\n");
+    fprintf(out, "\n");
+
     fprintf(out, "const static int kMaxPushedAtomId = %d;\n\n", maxPushedAtomId);
 
     // Print write methods
diff --git a/wifi/java/android/net/wifi/WifiConfiguration.java b/wifi/java/android/net/wifi/WifiConfiguration.java
index 2c60118..8d1a00b 100644
--- a/wifi/java/android/net/wifi/WifiConfiguration.java
+++ b/wifi/java/android/net/wifi/WifiConfiguration.java
@@ -20,6 +20,7 @@
 import android.content.pm.PackageManager;
 import android.net.IpConfiguration;
 import android.net.IpConfiguration.ProxySettings;
+import android.net.MacAddress;
 import android.net.ProxyInfo;
 import android.net.StaticIpConfiguration;
 import android.net.Uri;
@@ -54,8 +55,10 @@
     /** {@hide} */
     public static final String pskVarName = "psk";
     /** {@hide} */
+    @Deprecated
     public static final String[] wepKeyVarNames = { "wep_key0", "wep_key1", "wep_key2", "wep_key3" };
     /** {@hide} */
+    @Deprecated
     public static final String wepTxKeyIdxVarName = "wep_tx_keyidx";
     /** {@hide} */
     public static final String priorityVarName = "priority";
@@ -82,6 +85,9 @@
         /** WPA is not used; plaintext or static WEP could be used. */
         public static final int NONE = 0;
         /** WPA pre-shared key (requires {@code preSharedKey} to be specified). */
+        /** @deprecated Due to security and performance limitations, use of WPA-1 networks
+         * is discouraged. WPA-2 (RSN) should be used instead. */
+        @Deprecated
         public static final int WPA_PSK = 1;
         /** WPA using EAP authentication. Generally used with an external authentication server. */
         public static final int WPA_EAP = 2;
@@ -115,8 +121,8 @@
 
         public static final String varName = "key_mgmt";
 
-        public static final String[] strings = { "NONE", "WPA_PSK", "WPA_EAP", "IEEE8021X",
-                "WPA2_PSK", "OSEN", "FT_PSK", "FT_EAP" };
+        public static final String[] strings = { "NONE", /* deprecated */ "WPA_PSK", "WPA_EAP",
+                "IEEE8021X", "WPA2_PSK", "OSEN", "FT_PSK", "FT_EAP" };
     }
 
     /**
@@ -125,7 +131,10 @@
     public static class Protocol {
         private Protocol() { }
 
-        /** WPA/IEEE 802.11i/D3.0 */
+        /** WPA/IEEE 802.11i/D3.0
+         * @deprecated Due to security and performance limitations, use of WPA-1 networks
+         * is discouraged. WPA-2 (RSN) should be used instead. */
+        @Deprecated
         public static final int WPA = 0;
         /** WPA2/IEEE 802.11i */
         public static final int RSN = 1;
@@ -147,7 +156,10 @@
 
         /** Open System authentication (required for WPA/WPA2) */
         public static final int OPEN = 0;
-        /** Shared Key authentication (requires static WEP keys) */
+        /** Shared Key authentication (requires static WEP keys)
+         * @deprecated Due to security and performance limitations, use of WEP networks
+         * is discouraged. */
+        @Deprecated
         public static final int SHARED = 1;
         /** LEAP/Network EAP (only used with LEAP) */
         public static final int LEAP = 2;
@@ -165,7 +177,10 @@
 
         /** Use only Group keys (deprecated) */
         public static final int NONE = 0;
-        /** Temporal Key Integrity Protocol [IEEE 802.11i/D7.0] */
+        /** Temporal Key Integrity Protocol [IEEE 802.11i/D7.0]
+         * @deprecated Due to security and performance limitations, use of WPA-1 networks
+         * is discouraged. WPA-2 (RSN) should be used instead. */
+        @Deprecated
         public static final int TKIP = 1;
         /** AES in Counter mode with CBC-MAC [RFC 3610, IEEE 802.11i/D7.0] */
         public static final int CCMP = 2;
@@ -187,9 +202,15 @@
     public static class GroupCipher {
         private GroupCipher() { }
 
-        /** WEP40 = WEP (Wired Equivalent Privacy) with 40-bit key (original 802.11) */
+        /** WEP40 = WEP (Wired Equivalent Privacy) with 40-bit key (original 802.11)
+         * @deprecated Due to security and performance limitations, use of WEP networks
+         * is discouraged. */
+        @Deprecated
         public static final int WEP40 = 0;
-        /** WEP104 = WEP (Wired Equivalent Privacy) with 104-bit key */
+        /** WEP104 = WEP (Wired Equivalent Privacy) with 104-bit key
+         * @deprecated Due to security and performance limitations, use of WEP networks
+         * is discouraged. */
+        @Deprecated
         public static final int WEP104 = 1;
         /** Temporal Key Integrity Protocol [IEEE 802.11i/D7.0] */
         public static final int TKIP = 2;
@@ -203,7 +224,8 @@
         public static final String varName = "group";
 
         public static final String[] strings =
-                { "WEP40", "WEP104", "TKIP", "CCMP", "GTK_NOT_USED" };
+                { /* deprecated */ "WEP40", /* deprecated */ "WEP104",
+                        "TKIP", "CCMP", "GTK_NOT_USED" };
     }
 
     /** Possible status of a network configuration. */
@@ -309,10 +331,16 @@
      * When the value of one of these keys is read, the actual key is
      * not returned, just a "*" if the key has a value, or the null
      * string otherwise.
+     * @deprecated Due to security and performance limitations, use of WEP networks
+     * is discouraged.
      */
+    @Deprecated
     public String[] wepKeys;
 
-    /** Default WEP key index, ranging from 0 to 3. */
+    /** Default WEP key index, ranging from 0 to 3.
+     * @deprecated Due to security and performance limitations, use of WEP networks
+     * is discouraged. */
+    @Deprecated
     public int wepTxKeyIndex;
 
     /**
@@ -852,6 +880,52 @@
     @SystemApi
     public int numAssociation;
 
+    /**
+     * @hide
+     * Randomized MAC address to use with this particular network
+     */
+    private MacAddress mRandomizedMacAddress;
+
+    /**
+     * @hide
+     * Checks if the given MAC address can be used for Connected Mac Randomization
+     * by verifying that it is non-null, unicast, and locally assigned.
+     * @param mac MacAddress to check
+     * @return true if mac is good to use
+     */
+    private boolean isValidMacAddressForRandomization(MacAddress mac) {
+        return mac != null && !mac.isMulticastAddress() && mac.isLocallyAssigned();
+    }
+
+    /**
+     * @hide
+     * Returns Randomized MAC address to use with the network.
+     * If it is not set/valid, create a new randomized address.
+     */
+    public MacAddress getOrCreateRandomizedMacAddress() {
+        if (!isValidMacAddressForRandomization(mRandomizedMacAddress)) {
+            mRandomizedMacAddress = MacAddress.createRandomUnicastAddress();
+        }
+        return mRandomizedMacAddress;
+    }
+
+    /**
+     * @hide
+     * Returns MAC address set to be the local randomized MAC address.
+     * Does not guarantee that the returned address is valid for use.
+     */
+    public MacAddress getRandomizedMacAddress() {
+        return mRandomizedMacAddress;
+    }
+
+    /**
+     * @hide
+     * @param mac MacAddress to change into
+     */
+    public void setRandomizedMacAddress(MacAddress mac) {
+        mRandomizedMacAddress = mac;
+    }
+
     /** @hide
      * Boost given to RSSI on a home network for the purpose of calculating the score
      * This adds stickiness to home networks, as defined by:
@@ -2124,6 +2198,7 @@
             updateTime = source.updateTime;
             shared = source.shared;
             recentFailure.setAssociationStatus(source.recentFailure.getAssociationStatus());
+            mRandomizedMacAddress = source.mRandomizedMacAddress;
         }
     }
 
@@ -2191,6 +2266,7 @@
         dest.writeInt(shared ? 1 : 0);
         dest.writeString(mPasspointManagementObjectTree);
         dest.writeInt(recentFailure.getAssociationStatus());
+        dest.writeParcelable(mRandomizedMacAddress, flags);
     }
 
     /** Implement the Parcelable interface {@hide} */
@@ -2259,6 +2335,7 @@
                 config.shared = in.readInt() != 0;
                 config.mPasspointManagementObjectTree = in.readString();
                 config.recentFailure.setAssociationStatus(in.readInt());
+                config.mRandomizedMacAddress = in.readParcelable(null);
                 return config;
             }
 
diff --git a/wifi/java/android/net/wifi/WifiManager.java b/wifi/java/android/net/wifi/WifiManager.java
index 50ae905..05dcb33 100644
--- a/wifi/java/android/net/wifi/WifiManager.java
+++ b/wifi/java/android/net/wifi/WifiManager.java
@@ -3593,26 +3593,6 @@
     }
 
     /**
-     * Deprecated
-     * Does nothing
-     * @hide
-     * @deprecated
-     */
-    public void setAllowScansWithTraffic(int enabled) {
-        return;
-    }
-
-    /**
-     * Deprecated
-     * returns value for 'disabled'
-     * @hide
-     * @deprecated
-     */
-    public int getAllowScansWithTraffic() {
-        return 0;
-    }
-
-    /**
      * Resets all wifi manager settings back to factory defaults.
      *
      * @hide
diff --git a/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java b/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
index 622dce6..e7377c1 100644
--- a/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
+++ b/wifi/tests/src/android/net/wifi/WifiConfigurationTest.java
@@ -22,6 +22,7 @@
 import static org.junit.Assert.assertFalse;
 
 import android.os.Parcel;
+import android.net.MacAddress;
 import android.net.wifi.WifiConfiguration.NetworkSelectionStatus;
 
 import org.junit.Before;
@@ -49,6 +50,7 @@
         String cookie = "C O.o |<IE";
         WifiConfiguration config = new WifiConfiguration();
         config.setPasspointManagementObjectTree(cookie);
+        MacAddress macBeforeParcel = config.getOrCreateRandomizedMacAddress();
         Parcel parcelW = Parcel.obtain();
         config.writeToParcel(parcelW, 0);
         byte[] bytes = parcelW.marshall();
@@ -59,8 +61,9 @@
         parcelR.setDataPosition(0);
         WifiConfiguration reconfig = WifiConfiguration.CREATOR.createFromParcel(parcelR);
 
-        // lacking a useful config.equals, check one field near the end.
+        // lacking a useful config.equals, check two fields near the end.
         assertEquals(cookie, reconfig.getMoTree());
+        assertEquals(macBeforeParcel, reconfig.getOrCreateRandomizedMacAddress());
 
         Parcel parcelWW = Parcel.obtain();
         reconfig.writeToParcel(parcelWW, 0);
@@ -169,4 +172,48 @@
 
         assertFalse(config.isOpenNetwork());
     }
+
+    @Test
+    public void testGetOrCreateRandomizedMacAddress_SavesAndReturnsSameAddress() {
+        WifiConfiguration config = new WifiConfiguration();
+        MacAddress firstMacAddress = config.getOrCreateRandomizedMacAddress();
+        MacAddress secondMacAddress = config.getOrCreateRandomizedMacAddress();
+
+        assertEquals(firstMacAddress, secondMacAddress);
+    }
+
+    @Test
+    public void testSetRandomizedMacAddress_ChangesSavedAddress() {
+        WifiConfiguration config = new WifiConfiguration();
+        MacAddress macToChangeInto = MacAddress.createRandomUnicastAddress();
+        config.setRandomizedMacAddress(macToChangeInto);
+        MacAddress macAfterChange = config.getOrCreateRandomizedMacAddress();
+
+        assertEquals(macToChangeInto, macAfterChange);
+    }
+
+    @Test
+    public void testGetOrCreateRandomizedMacAddress_ReRandomizesInvalidAddress() {
+        WifiConfiguration config =  new WifiConfiguration();
+
+        MacAddress macAddressZeroes = MacAddress.ALL_ZEROS_ADDRESS;
+        MacAddress macAddressMulticast = MacAddress.fromString("03:ff:ff:ff:ff:ff");
+        MacAddress macAddressGlobal = MacAddress.fromString("fc:ff:ff:ff:ff:ff");
+
+        config.setRandomizedMacAddress(null);
+        MacAddress macAfterChange = config.getOrCreateRandomizedMacAddress();
+        assertFalse(macAfterChange.equals(null));
+
+        config.setRandomizedMacAddress(macAddressZeroes);
+        macAfterChange = config.getOrCreateRandomizedMacAddress();
+        assertFalse(macAfterChange.equals(macAddressZeroes));
+
+        config.setRandomizedMacAddress(macAddressMulticast);
+        macAfterChange = config.getOrCreateRandomizedMacAddress();
+        assertFalse(macAfterChange.equals(macAddressMulticast));
+
+        config.setRandomizedMacAddress(macAddressGlobal);
+        macAfterChange = config.getOrCreateRandomizedMacAddress();
+        assertFalse(macAfterChange.equals(macAddressGlobal));
+    }
 }