Merge "incidentd: Updating BatteryStats process states."
diff --git a/Android.mk b/Android.mk
index a19f2d9..0e363d2 100644
--- a/Android.mk
+++ b/Android.mk
@@ -252,12 +252,26 @@
 	system/netd/server/binder/android/net/UidRange.aidl \
 	frameworks/base/telephony/java/android/telephony/PcoData.aidl \
 
+aidl_parcelables :=
+define stubs-to-aidl-parcelables
+  gen := $(TARGET_OUT_COMMON_INTERMEDIATES)/$1.aidl
+  aidl_parcelables += $$(gen)
+  $$(gen): $(call java-lib-header-files,$1) | $(HOST_OUT_EXECUTABLES)/sdkparcelables
+	@echo Extract SDK parcelables: $$@
+	rm -f $$@
+	$(HOST_OUT_EXECUTABLES)/sdkparcelables $$< $$@
+endef
+
+$(foreach stubs,android_stubs_current android_test_stubs_current android_system_stubs_current,\
+  $(eval $(call stubs-to-aidl-parcelables,$(stubs))))
+
 gen := $(TARGET_OUT_COMMON_INTERMEDIATES)/framework.aidl
-$(gen): PRIVATE_SRC_FILES := $(aidl_files)
-ALL_SDK_FILES += $(gen)
-$(gen): $(aidl_files) | $(AIDL)
-		@echo Aidl Preprocess: $@
-		$(hide) $(AIDL) --preprocess $@ $(PRIVATE_SRC_FILES)
+.KATI_RESTAT: $(gen)
+$(gen): $(aidl_parcelables)
+	@echo Combining SDK parcelables: $@
+	rm -f $@.tmp
+	cat $^ | sort -u > $@.tmp
+	$(call commit-change-for-toc,$@)
 
 # the documentation
 # ============================================================
@@ -554,8 +568,6 @@
 
 include $(BUILD_DROIDDOC)
 
-# $(gen), i.e. framework.aidl, is also needed while building against the current stub.
-$(full_target): $(gen)
 $(INTERNAL_PLATFORM_API_FILE): $(full_target)
 $(call dist-for-goals,sdk,$(INTERNAL_PLATFORM_API_FILE))
 
@@ -591,8 +603,6 @@
 
 include $(BUILD_DROIDDOC)
 
-# $(gen), i.e. framework.aidl, is also needed while building against the current stub.
-$(full_target): $(gen)
 $(INTERNAL_PLATFORM_SYSTEM_API_FILE): $(full_target)
 $(call dist-for-goals,sdk,$(INTERNAL_PLATFORM_SYSTEM_API_FILE))
 
@@ -629,8 +639,6 @@
 
 include $(BUILD_DROIDDOC)
 
-# $(gen), i.e. framework.aidl, is also needed while building against the current stub.
-$(full_target): $(gen)
 $(INTERNAL_PLATFORM_TEST_API_FILE): $(full_target)
 $(call dist-for-goals,sdk,$(INTERNAL_PLATFORM_TEST_API_FILE))
 
@@ -660,9 +668,6 @@
 
 include $(BUILD_DROIDDOC)
 
-# $(gen), i.e. framework.aidl, is also needed while building against the current stub.
-$(full_target): $(gen)
-
 # Run this for checkbuild
 checkbuild: doc-comment-check-docs
 # Check comment when you are updating the API
diff --git a/api/current.txt b/api/current.txt
index 8925846..10b5c67 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -6338,7 +6338,7 @@
     method public android.os.UserHandle createAndManageUser(android.content.ComponentName, java.lang.String, android.content.ComponentName, android.os.PersistableBundle, int);
     method public void enableSystemApp(android.content.ComponentName, java.lang.String);
     method public int enableSystemApp(android.content.ComponentName, android.content.Intent);
-    method public android.security.AttestedKeyPair generateKeyPair(android.content.ComponentName, java.lang.String, android.security.keystore.KeyGenParameterSpec);
+    method public android.security.AttestedKeyPair generateKeyPair(android.content.ComponentName, java.lang.String, android.security.keystore.KeyGenParameterSpec, int);
     method public java.lang.String[] getAccountTypesWithManagementDisabled();
     method public java.util.List<android.content.ComponentName> getActiveAdmins();
     method public java.util.Set<java.lang.String> getAffiliationIds(android.content.ComponentName);
@@ -6572,6 +6572,10 @@
     field public static final int FLAG_EVICT_CREDENTIAL_ENCRYPTION_KEY = 1; // 0x1
     field public static final int FLAG_MANAGED_CAN_ACCESS_PARENT = 2; // 0x2
     field public static final int FLAG_PARENT_CAN_ACCESS_MANAGED = 1; // 0x1
+    field public static final int ID_TYPE_BASE_INFO = 1; // 0x1
+    field public static final int ID_TYPE_IMEI = 4; // 0x4
+    field public static final int ID_TYPE_MEID = 8; // 0x8
+    field public static final int ID_TYPE_SERIAL = 2; // 0x2
     field public static final int KEYGUARD_DISABLE_FEATURES_ALL = 2147483647; // 0x7fffffff
     field public static final int KEYGUARD_DISABLE_FEATURES_NONE = 0; // 0x0
     field public static final int KEYGUARD_DISABLE_FINGERPRINT = 32; // 0x20
@@ -6749,6 +6753,7 @@
     method public java.lang.CharSequence getText();
     method public int getTextBackgroundColor();
     method public int getTextColor();
+    method public java.lang.String getTextIdEntry();
     method public int[] getTextLineBaselines();
     method public int[] getTextLineCharOffsets();
     method public int getTextSelectionEnd();
@@ -31570,6 +31575,7 @@
     method public final boolean postAtTime(java.lang.Runnable, long);
     method public final boolean postAtTime(java.lang.Runnable, java.lang.Object, long);
     method public final boolean postDelayed(java.lang.Runnable, long);
+    method public final boolean postDelayed(java.lang.Runnable, java.lang.Object, long);
     method public final void removeCallbacks(java.lang.Runnable);
     method public final void removeCallbacks(java.lang.Runnable, java.lang.Object);
     method public final void removeCallbacksAndMessages(java.lang.Object);
@@ -47257,6 +47263,7 @@
     method public abstract void setSelected(boolean);
     method public abstract void setText(java.lang.CharSequence);
     method public abstract void setText(java.lang.CharSequence, int, int);
+    method public void setTextIdEntry(java.lang.String);
     method public abstract void setTextLines(int[], int[]);
     method public abstract void setTextStyle(float, int, int, int);
     method public abstract void setTransformation(android.graphics.Matrix);
@@ -47776,6 +47783,7 @@
     method public java.lang.CharSequence getPackageName();
     method public android.view.accessibility.AccessibilityRecord getRecord(int);
     method public int getRecordCount();
+    method public int getWindowChanges();
     method public void initFromParcel(android.os.Parcel);
     method public static android.view.accessibility.AccessibilityEvent obtain(int);
     method public static android.view.accessibility.AccessibilityEvent obtain(android.view.accessibility.AccessibilityEvent);
@@ -47820,6 +47828,17 @@
     field public static final int TYPE_WINDOWS_CHANGED = 4194304; // 0x400000
     field public static final int TYPE_WINDOW_CONTENT_CHANGED = 2048; // 0x800
     field public static final int TYPE_WINDOW_STATE_CHANGED = 32; // 0x20
+    field public static final int WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED = 128; // 0x80
+    field public static final int WINDOWS_CHANGE_ACTIVE = 32; // 0x20
+    field public static final int WINDOWS_CHANGE_ADDED = 1; // 0x1
+    field public static final int WINDOWS_CHANGE_BOUNDS = 8; // 0x8
+    field public static final int WINDOWS_CHANGE_CHILDREN = 512; // 0x200
+    field public static final int WINDOWS_CHANGE_FOCUSED = 64; // 0x40
+    field public static final int WINDOWS_CHANGE_LAYER = 16; // 0x10
+    field public static final int WINDOWS_CHANGE_PARENT = 256; // 0x100
+    field public static final int WINDOWS_CHANGE_PIP = 1024; // 0x400
+    field public static final int WINDOWS_CHANGE_REMOVED = 2; // 0x2
+    field public static final int WINDOWS_CHANGE_TITLE = 4; // 0x4
   }
 
   public abstract interface AccessibilityEventSource {
diff --git a/api/system-current.txt b/api/system-current.txt
index 3e78167..596474c 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -1340,9 +1340,30 @@
 
 package android.hardware.location {
 
+  public class ContextHubClient implements java.io.Closeable {
+    method public void close();
+    method public android.hardware.location.ContextHubInfo getAttachedHub();
+    method public int sendMessageToNanoApp(android.hardware.location.NanoAppMessage);
+  }
+
+  public class ContextHubClientCallback {
+    ctor public ContextHubClientCallback();
+    method public void onHubReset(android.hardware.location.ContextHubClient);
+    method public void onMessageFromNanoApp(android.hardware.location.ContextHubClient, android.hardware.location.NanoAppMessage);
+    method public void onNanoAppAborted(android.hardware.location.ContextHubClient, long, int);
+    method public void onNanoAppDisabled(android.hardware.location.ContextHubClient, long);
+    method public void onNanoAppEnabled(android.hardware.location.ContextHubClient, long);
+    method public void onNanoAppLoaded(android.hardware.location.ContextHubClient, long);
+    method public void onNanoAppUnloaded(android.hardware.location.ContextHubClient, long);
+  }
+
   public class ContextHubInfo implements android.os.Parcelable {
     ctor public ContextHubInfo();
     method public int describeContents();
+    method public byte getChreApiMajorVersion();
+    method public byte getChreApiMinorVersion();
+    method public short getChrePatchVersion();
+    method public long getChrePlatformId();
     method public int getId();
     method public int getMaxPacketLengthBytes();
     method public android.hardware.location.MemoryRegion[] getMemoryRegions();
@@ -1362,19 +1383,27 @@
   }
 
   public final class ContextHubManager {
-    method public int[] findNanoAppOnHub(int, android.hardware.location.NanoAppFilter);
-    method public int[] getContextHubHandles();
-    method public android.hardware.location.ContextHubInfo getContextHubInfo(int);
-    method public android.hardware.location.NanoAppInstanceInfo getNanoAppInstanceInfo(int);
-    method public int loadNanoApp(int, android.hardware.location.NanoApp);
-    method public int registerCallback(android.hardware.location.ContextHubManager.Callback);
-    method public int registerCallback(android.hardware.location.ContextHubManager.Callback, android.os.Handler);
-    method public int sendMessage(int, int, android.hardware.location.ContextHubMessage);
-    method public int unloadNanoApp(int);
-    method public int unregisterCallback(android.hardware.location.ContextHubManager.Callback);
+    method public android.hardware.location.ContextHubClient createClient(android.hardware.location.ContextHubInfo, android.hardware.location.ContextHubClientCallback, java.util.concurrent.Executor);
+    method public android.hardware.location.ContextHubClient createClient(android.hardware.location.ContextHubInfo, android.hardware.location.ContextHubClientCallback);
+    method public android.hardware.location.ContextHubTransaction<java.lang.Void> disableNanoApp(android.hardware.location.ContextHubInfo, long);
+    method public android.hardware.location.ContextHubTransaction<java.lang.Void> enableNanoApp(android.hardware.location.ContextHubInfo, long);
+    method public deprecated int[] findNanoAppOnHub(int, android.hardware.location.NanoAppFilter);
+    method public deprecated int[] getContextHubHandles();
+    method public deprecated android.hardware.location.ContextHubInfo getContextHubInfo(int);
+    method public java.util.List<android.hardware.location.ContextHubInfo> getContextHubs();
+    method public deprecated android.hardware.location.NanoAppInstanceInfo getNanoAppInstanceInfo(int);
+    method public deprecated int loadNanoApp(int, android.hardware.location.NanoApp);
+    method public android.hardware.location.ContextHubTransaction<java.lang.Void> loadNanoApp(android.hardware.location.ContextHubInfo, android.hardware.location.NanoAppBinary);
+    method public android.hardware.location.ContextHubTransaction<java.util.List<android.hardware.location.NanoAppState>> queryNanoApps(android.hardware.location.ContextHubInfo);
+    method public deprecated int registerCallback(android.hardware.location.ContextHubManager.Callback);
+    method public deprecated int registerCallback(android.hardware.location.ContextHubManager.Callback, android.os.Handler);
+    method public deprecated int sendMessage(int, int, android.hardware.location.ContextHubMessage);
+    method public deprecated int unloadNanoApp(int);
+    method public android.hardware.location.ContextHubTransaction<java.lang.Void> unloadNanoApp(android.hardware.location.ContextHubInfo, long);
+    method public deprecated int unregisterCallback(android.hardware.location.ContextHubManager.Callback);
   }
 
-  public static abstract class ContextHubManager.Callback {
+  public static abstract deprecated class ContextHubManager.Callback {
     ctor protected ContextHubManager.Callback();
     method public abstract void onMessageReceipt(int, int, android.hardware.location.ContextHubMessage);
   }
@@ -1392,6 +1421,37 @@
     field public static final android.os.Parcelable.Creator<android.hardware.location.ContextHubMessage> CREATOR;
   }
 
+  public class ContextHubTransaction<T> {
+    method public int getType();
+    method public void setOnCompleteListener(android.hardware.location.ContextHubTransaction.OnCompleteListener<T>, java.util.concurrent.Executor);
+    method public void setOnCompleteListener(android.hardware.location.ContextHubTransaction.OnCompleteListener<T>);
+    method public static java.lang.String typeToString(int, boolean);
+    method public android.hardware.location.ContextHubTransaction.Response<T> waitForResponse(long, java.util.concurrent.TimeUnit) throws java.lang.InterruptedException, java.util.concurrent.TimeoutException;
+    field public static final int RESULT_FAILED_AT_HUB = 5; // 0x5
+    field public static final int RESULT_FAILED_BAD_PARAMS = 2; // 0x2
+    field public static final int RESULT_FAILED_BUSY = 4; // 0x4
+    field public static final int RESULT_FAILED_HAL_UNAVAILABLE = 8; // 0x8
+    field public static final int RESULT_FAILED_SERVICE_INTERNAL_FAILURE = 7; // 0x7
+    field public static final int RESULT_FAILED_TIMEOUT = 6; // 0x6
+    field public static final int RESULT_FAILED_UNINITIALIZED = 3; // 0x3
+    field public static final int RESULT_FAILED_UNKNOWN = 1; // 0x1
+    field public static final int RESULT_SUCCESS = 0; // 0x0
+    field public static final int TYPE_DISABLE_NANOAPP = 3; // 0x3
+    field public static final int TYPE_ENABLE_NANOAPP = 2; // 0x2
+    field public static final int TYPE_LOAD_NANOAPP = 0; // 0x0
+    field public static final int TYPE_QUERY_NANOAPPS = 4; // 0x4
+    field public static final int TYPE_UNLOAD_NANOAPP = 1; // 0x1
+  }
+
+  public static abstract interface ContextHubTransaction.OnCompleteListener<L> {
+    method public abstract void onComplete(android.hardware.location.ContextHubTransaction<L>, android.hardware.location.ContextHubTransaction.Response<L>);
+  }
+
+  public static class ContextHubTransaction.Response<R> {
+    method public R getContents();
+    method public int getResult();
+  }
+
   public final class GeofenceHardware {
     method public boolean addGeofence(int, int, android.hardware.location.GeofenceHardwareRequest, android.hardware.location.GeofenceHardwareCallback);
     method public int[] getMonitoringTypes();
@@ -1508,6 +1568,25 @@
     field public static final android.os.Parcelable.Creator<android.hardware.location.NanoApp> CREATOR;
   }
 
+  public final class NanoAppBinary implements android.os.Parcelable {
+    ctor public NanoAppBinary(byte[]);
+    method public int describeContents();
+    method public byte[] getBinary();
+    method public byte[] getBinaryNoHeader();
+    method public int getFlags();
+    method public int getHeaderVersion();
+    method public long getHwHubType();
+    method public long getNanoAppId();
+    method public int getNanoAppVersion();
+    method public byte getTargetChreApiMajorVersion();
+    method public byte getTargetChreApiMinorVersion();
+    method public boolean hasValidHeader();
+    method public boolean isEncrypted();
+    method public boolean isSigned();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.hardware.location.NanoAppBinary> CREATOR;
+  }
+
   public class NanoAppFilter {
     ctor public NanoAppFilter(long, int, int, long);
     method public int describeContents();
@@ -1541,6 +1620,28 @@
     field public static final android.os.Parcelable.Creator<android.hardware.location.NanoAppInstanceInfo> CREATOR;
   }
 
+  public final class NanoAppMessage implements android.os.Parcelable {
+    method public static android.hardware.location.NanoAppMessage createMessageFromNanoApp(long, int, byte[], boolean);
+    method public static android.hardware.location.NanoAppMessage createMessageToNanoApp(long, int, byte[]);
+    method public int describeContents();
+    method public byte[] getMessageBody();
+    method public int getMessageType();
+    method public long getNanoAppId();
+    method public boolean isBroadcastMessage();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.hardware.location.NanoAppMessage> CREATOR;
+  }
+
+  public final class NanoAppState implements android.os.Parcelable {
+    ctor public NanoAppState(long, int, boolean);
+    method public int describeContents();
+    method public long getNanoAppId();
+    method public long getNanoAppVersion();
+    method public boolean isEnabled();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.hardware.location.NanoAppState> CREATOR;
+  }
+
 }
 
 package android.hardware.radio {
@@ -4368,10 +4469,10 @@
   }
 
   public final class StatsManager {
-    method public boolean addConfiguration(java.lang.String, byte[], java.lang.String, java.lang.String);
-    method public byte[] getData(java.lang.String);
+    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(java.lang.String);
+    method public boolean removeConfiguration(long);
   }
 
 }
diff --git a/cmds/incidentd/Android.mk b/cmds/incidentd/Android.mk
index fb8ef63..11d3e49 100644
--- a/cmds/incidentd/Android.mk
+++ b/cmds/incidentd/Android.mk
@@ -72,9 +72,7 @@
 gen_src_dir:=
 GEN:=
 
-ifeq ($(BUILD_WITH_INCIDENTD_RC), true)
 LOCAL_INIT_RC := incidentd.rc
-endif
 
 include $(BUILD_EXECUTABLE)
 
diff --git a/cmds/statsd/src/HashableDimensionKey.cpp b/cmds/statsd/src/HashableDimensionKey.cpp
index 6da1243..288ebe9 100644
--- a/cmds/statsd/src/HashableDimensionKey.cpp
+++ b/cmds/statsd/src/HashableDimensionKey.cpp
@@ -21,8 +21,8 @@
 namespace os {
 namespace statsd {
 
-android::hash_t hashDimensionsValue(const DimensionsValue& value) {
-    android::hash_t hash = 0;
+android::hash_t hashDimensionsValue(int64_t seed, const DimensionsValue& value) {
+    android::hash_t hash = seed;
     hash = android::JenkinsHashMix(hash, android::hash_type(value.field()));
 
     hash = android::JenkinsHashMix(hash, android::hash_type((int)value.value_case()));
@@ -63,6 +63,10 @@
     return JenkinsHashWhiten(hash);
 }
 
+android::hash_t hashDimensionsValue(const DimensionsValue& value) {
+    return hashDimensionsValue(0, value);
+}
+
 using std::string;
 
 
diff --git a/cmds/statsd/src/HashableDimensionKey.h b/cmds/statsd/src/HashableDimensionKey.h
index 3a4ffce..85c317f 100644
--- a/cmds/statsd/src/HashableDimensionKey.h
+++ b/cmds/statsd/src/HashableDimensionKey.h
@@ -53,6 +53,7 @@
     DimensionsValue mDimensionsValue;
 };
 
+android::hash_t hashDimensionsValue(int64_t seed, const DimensionsValue& value);
 android::hash_t hashDimensionsValue(const DimensionsValue& value);
 
 }  // namespace statsd
diff --git a/cmds/statsd/src/StatsLogProcessor.cpp b/cmds/statsd/src/StatsLogProcessor.cpp
index 13f332e..9678014 100644
--- a/cmds/statsd/src/StatsLogProcessor.cpp
+++ b/cmds/statsd/src/StatsLogProcessor.cpp
@@ -54,7 +54,7 @@
 const int FIELD_ID_REPORTS = 2;
 // for ConfigKey
 const int FIELD_ID_UID = 1;
-const int FIELD_ID_NAME = 2;
+const int FIELD_ID_ID = 2;
 // for ConfigMetricsReport
 const int FIELD_ID_METRICS = 1;
 const int FIELD_ID_UID_MAP = 2;
@@ -157,7 +157,7 @@
         return;
     }
     report->mutable_config_key()->set_uid(key.GetUid());
-    report->mutable_config_key()->set_name(key.GetName());
+    report->mutable_config_key()->set_id(key.GetId());
     ConfigMetricsReport* configMetricsReport = report->add_reports();
     it->second->onDumpReport(dumpTimeStampNs, configMetricsReport);
     // TODO: dump uid mapping.
@@ -181,7 +181,7 @@
     // Start of ConfigKey.
     long long configKeyToken = proto.start(FIELD_TYPE_MESSAGE | FIELD_ID_CONFIG_KEY);
     proto.write(FIELD_TYPE_INT32 | FIELD_ID_UID, key.GetUid());
-    proto.write(FIELD_TYPE_STRING | FIELD_ID_NAME, key.GetName());
+    proto.write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)key.GetId());
     proto.end(configKeyToken);
     // End of ConfigKey.
 
@@ -278,8 +278,8 @@
         vector<uint8_t> data;
         onDumpReport(key, &data);
         // TODO: Add a guardrail to prevent accumulation of file on disk.
-        string file_name = StringPrintf("%s/%d-%s-%ld", STATS_DATA_DIR, key.GetUid(),
-                                        key.GetName().c_str(), time(nullptr));
+        string file_name = StringPrintf("%s/%d-%lld-%ld", STATS_DATA_DIR, key.GetUid(),
+                                        (long long)key.GetId(), time(nullptr));
         StorageManager::writeFile(file_name.c_str(), &data[0], data.size());
     }
 }
diff --git a/cmds/statsd/src/StatsService.cpp b/cmds/statsd/src/StatsService.cpp
index e8b0bd2..45f1ea1 100644
--- a/cmds/statsd/src/StatsService.cpp
+++ b/cmds/statsd/src/StatsService.cpp
@@ -335,7 +335,7 @@
         print_cmd_help(out);
         return UNKNOWN_ERROR;
     }
-    auto receiver = mConfigManager->GetConfigReceiver(ConfigKey(uid, name));
+    auto receiver = mConfigManager->GetConfigReceiver(ConfigKey(uid, StrToInt64(name)));
     sp<IStatsCompanionService> sc = getStatsCompanionService();
     if (sc != nullptr) {
         sc->sendBroadcast(String16(receiver.first.c_str()), String16(receiver.second.c_str()));
@@ -404,13 +404,13 @@
                 }
 
                 // Add / update the config.
-                mConfigManager->UpdateConfig(ConfigKey(uid, name), config);
+                mConfigManager->UpdateConfig(ConfigKey(uid, StrToInt64(name)), config);
             } else {
                 if (argCount == 2) {
                     cmd_remove_all_configs(out);
                 } else {
                     // Remove the config.
-                    mConfigManager->RemoveConfig(ConfigKey(uid, name));
+                    mConfigManager->RemoveConfig(ConfigKey(uid, StrToInt64(name)));
                 }
             }
 
@@ -459,7 +459,7 @@
         }
         if (good) {
             vector<uint8_t> data;
-            mProcessor->onDumpReport(ConfigKey(uid, name), &data);
+            mProcessor->onDumpReport(ConfigKey(uid, StrToInt64(name)), &data);
             // TODO: print the returned StatsLogReport to file instead of printing to logcat.
             if (proto) {
                 for (size_t i = 0; i < data.size(); i ++) {
@@ -699,12 +699,11 @@
     mProcessor->OnLogEvent(event);
 }
 
-Status StatsService::getData(const String16& key, vector<uint8_t>* output) {
+Status StatsService::getData(int64_t key, vector<uint8_t>* output) {
     IPCThreadState* ipc = IPCThreadState::self();
     VLOG("StatsService::getData with Pid %i, Uid %i", ipc->getCallingPid(), ipc->getCallingUid());
     if (checkCallingPermission(String16(kPermissionDump))) {
-        string keyStr = string(String8(key).string());
-        ConfigKey configKey(ipc->getCallingUid(), keyStr);
+        ConfigKey configKey(ipc->getCallingUid(), key);
         mProcessor->onDumpReport(configKey, output);
         return Status::ok();
     } else {
@@ -724,14 +723,13 @@
     }
 }
 
-Status StatsService::addConfiguration(const String16& key,
+Status StatsService::addConfiguration(int64_t key,
                                       const vector <uint8_t>& config,
                                       const String16& package, const String16& cls,
                                       bool* success) {
     IPCThreadState* ipc = IPCThreadState::self();
     if (checkCallingPermission(String16(kPermissionDump))) {
-        string keyString = string(String8(key).string());
-        ConfigKey configKey(ipc->getCallingUid(), keyString);
+        ConfigKey configKey(ipc->getCallingUid(), key);
         StatsdConfig cfg;
         if (!cfg.ParseFromArray(&config[0], config.size())) {
             *success = false;
@@ -748,11 +746,10 @@
     }
 }
 
-Status StatsService::removeConfiguration(const String16& key, bool* success) {
+Status StatsService::removeConfiguration(int64_t key, bool* success) {
     IPCThreadState* ipc = IPCThreadState::self();
     if (checkCallingPermission(String16(kPermissionDump))) {
-        string keyStr = string(String8(key).string());
-        mConfigManager->RemoveConfig(ConfigKey(ipc->getCallingUid(), keyStr));
+        mConfigManager->RemoveConfig(ConfigKey(ipc->getCallingUid(), key));
         *success = true;
         return Status::ok();
     } else {
diff --git a/cmds/statsd/src/StatsService.h b/cmds/statsd/src/StatsService.h
index 08fcdac..c0424f3 100644
--- a/cmds/statsd/src/StatsService.h
+++ b/cmds/statsd/src/StatsService.h
@@ -77,25 +77,27 @@
     /**
      * Binder call for clients to request data for this configuration key.
      */
-    virtual Status getData(const String16& key, vector<uint8_t>* output) override;
+    virtual Status getData(int64_t key, vector<uint8_t>* output) override;
+
 
     /**
      * Binder call for clients to get metadata across all configs in statsd.
      */
     virtual Status getMetadata(vector<uint8_t>* output) override;
 
+
     /**
      * Binder call to let clients send a configuration and indicate they're interested when they
      * should requestData for this configuration.
      */
-    virtual Status addConfiguration(const String16& key, const vector <uint8_t>& config,
-                                   const String16& package, const String16& cls, bool* success)
+    virtual Status addConfiguration(int64_t key, const vector <uint8_t>& config,
+                                    const String16& package, const String16& cls, bool* success)
     override;
 
     /**
      * Binder call to allow clients to remove the specified configuration.
      */
-    virtual Status removeConfiguration(const String16& key, bool* success) override;
+    virtual Status removeConfiguration(int64_t key, bool* success) override;
 
     // TODO: public for testing since statsd doesn't run when system starts. Change to private
     // later.
diff --git a/cmds/statsd/src/anomaly/AnomalyTracker.cpp b/cmds/statsd/src/anomaly/AnomalyTracker.cpp
index f8a9413..05c68e1 100644
--- a/cmds/statsd/src/anomaly/AnomalyTracker.cpp
+++ b/cmds/statsd/src/anomaly/AnomalyTracker.cpp
@@ -34,11 +34,11 @@
 AnomalyTracker::AnomalyTracker(const Alert& alert, const ConfigKey& configKey)
     : mAlert(alert),
       mConfigKey(configKey),
-      mNumOfPastBuckets(mAlert.number_of_buckets() - 1) {
+      mNumOfPastBuckets(mAlert.num_buckets() - 1) {
     VLOG("AnomalyTracker() called");
-    if (mAlert.number_of_buckets() <= 0) {
+    if (mAlert.num_buckets() <= 0) {
         ALOGE("Cannot create AnomalyTracker with %lld buckets",
-              (long long)mAlert.number_of_buckets());
+              (long long)mAlert.num_buckets());
         return;
     }
     if (!mAlert.has_trigger_if_sum_gt()) {
@@ -205,23 +205,21 @@
     // TODO: If we had access to the bucket_size_millis, consider calling resetStorage()
     // if (mAlert.refractory_period_secs() > mNumOfPastBuckets * bucketSizeNs) { resetStorage(); }
 
-    if (mAlert.has_incidentd_details()) {
-        if (mAlert.has_name()) {
-            ALOGI("An anomaly (%s) has occurred! Informing incidentd.",
-                  mAlert.name().c_str());
+    if (!mSubscriptions.empty()) {
+        if (mAlert.has_id()) {
+            ALOGI("An anomaly (%llu) has occurred! Informing subscribers.",mAlert.id());
+            informSubscribers();
         } else {
-            // TODO: Can construct a name based on the criteria (and/or relay the criteria).
-            ALOGI("An anomaly (nameless) has occurred! Informing incidentd.");
+            ALOGI("An anomaly (with no id) has occurred! Not informing any subscribers.");
         }
-        informIncidentd();
     } else {
-        ALOGI("An anomaly has occurred! (But informing incidentd not requested.)");
+        ALOGI("An anomaly has occurred! (But no subscriber for that alert.)");
     }
 
-    StatsdStats::getInstance().noteAnomalyDeclared(mConfigKey, mAlert.name());
+    StatsdStats::getInstance().noteAnomalyDeclared(mConfigKey, mAlert.id());
 
     android::util::stats_write(android::util::ANOMALY_DETECTED, mConfigKey.GetUid(),
-                               mConfigKey.GetName().c_str(), mAlert.name().c_str());
+                               mConfigKey.GetId(), mAlert.id());
 }
 
 void AnomalyTracker::detectAndDeclareAnomaly(const uint64_t& timestampNs,
@@ -246,27 +244,46 @@
             timestampNs - mLastAnomalyTimestampNs <= mAlert.refractory_period_secs() * NS_PER_SEC;
 }
 
-void AnomalyTracker::informIncidentd() {
-    VLOG("informIncidentd called.");
-    if (!mAlert.has_incidentd_details()) {
-        ALOGE("Attempted to call incidentd without any incidentd_details.");
-        return;
-    }
-    sp<IIncidentManager> service = interface_cast<IIncidentManager>(
-            defaultServiceManager()->getService(android::String16("incident")));
-    if (service == NULL) {
-        ALOGW("Couldn't get the incident service.");
+void AnomalyTracker::informSubscribers() {
+    VLOG("informSubscribers called.");
+    if (mSubscriptions.empty()) {
+        ALOGE("Attempt to call with no subscribers.");
         return;
     }
 
-    IncidentReportArgs incidentReport;
-    const Alert::IncidentdDetails& details = mAlert.incidentd_details();
-    for (int i = 0; i < details.section_size(); i++) {
-        incidentReport.addSection(details.section(i));
+    std::set<int> incidentdSections;
+    for (const Subscription& subscription : mSubscriptions) {
+        switch (subscription.subscriber_information_case()) {
+            case Subscription::SubscriberInformationCase::kIncidentdDetails:
+                for (int i = 0; i < subscription.incidentd_details().section_size(); i++) {
+                    incidentdSections.insert(subscription.incidentd_details().section(i));
+                }
+                break;
+            case Subscription::SubscriberInformationCase::kPerfettoDetails:
+                ALOGW("Perfetto reports not implemented.");
+                break;
+            default:
+                break;
+        }
     }
-    // TODO: Pass in mAlert.name() into the addHeader?
-
-    service->reportIncident(incidentReport);
+    if (!incidentdSections.empty()) {
+        sp<IIncidentManager> service = interface_cast<IIncidentManager>(
+                defaultServiceManager()->getService(android::String16("incident")));
+        if (service != NULL) {
+            IncidentReportArgs incidentReport;
+            for (const auto section : incidentdSections) {
+                incidentReport.addSection(section);
+            }
+            int64_t alertId = mAlert.id();
+            std::vector<uint8_t> header;
+            uint8_t* src = static_cast<uint8_t*>(static_cast<void*>(&alertId));
+            header.insert(header.end(), src, src + sizeof(int64_t));
+            incidentReport.addHeader(header);
+            service->reportIncident(incidentReport);
+        } else {
+            ALOGW("Couldn't get the incident service.");
+        }
+    }
 }
 
 }  // namespace statsd
diff --git a/cmds/statsd/src/anomaly/AnomalyTracker.h b/cmds/statsd/src/anomaly/AnomalyTracker.h
index 48f0203..2d5ab86 100644
--- a/cmds/statsd/src/anomaly/AnomalyTracker.h
+++ b/cmds/statsd/src/anomaly/AnomalyTracker.h
@@ -40,6 +40,11 @@
 
     virtual ~AnomalyTracker();
 
+    // Add subscriptions that depend on this alert.
+    void addSubscription(const Subscription& subscription) {
+        mSubscriptions.push_back(subscription);
+    }
+
     // Adds a bucket.
     // Bucket index starts from 0.
     void addPastBucket(std::shared_ptr<DimToValMap> bucketValues, const int64_t& bucketNum);
@@ -97,6 +102,9 @@
     // statsd_config.proto Alert message that defines this tracker.
     const Alert mAlert;
 
+    // The subscriptions that depend on this alert.
+    std::vector<Subscription> mSubscriptions;
+
     // A reference to the Alert's config key.
     const ConfigKey& mConfigKey;
 
@@ -104,7 +112,7 @@
     // for the anomaly detection (since the current bucket is not in the past).
     int mNumOfPastBuckets;
 
-    // The exisiting bucket list.
+    // The existing bucket list.
     std::vector<shared_ptr<DimToValMap>> mPastBuckets;
 
     // Sum over all existing buckets cached in mPastBuckets.
@@ -133,8 +141,8 @@
     // Resets all bucket data. For use when all the data gets stale.
     virtual void resetStorage();
 
-    // Informs the incident service that an anomaly has occurred.
-    void informIncidentd();
+    // Informs the subscribers that an anomaly has occurred.
+    void informSubscribers();
 
     FRIEND_TEST(AnomalyTrackerTest, TestConsecutiveBuckets);
     FRIEND_TEST(AnomalyTrackerTest, TestSparseBuckets);
diff --git a/cmds/statsd/src/atoms.proto b/cmds/statsd/src/atoms.proto
index 1ee86f0..221a554 100644
--- a/cmds/statsd/src/atoms.proto
+++ b/cmds/statsd/src/atoms.proto
@@ -845,11 +845,11 @@
     // Uid that owns the config whose anomaly detection alert fired.
     optional int32 config_uid = 1;
 
-    // Name of the config whose anomaly detection alert fired.
-    optional string config_name = 2;
+    // Id of the config whose anomaly detection alert fired.
+    optional int64 config_id = 2;
 
-    // Name of the alert (i.e. name of the anomaly that was detected).
-    optional string alert_name = 3;
+    // Id of the alert (i.e. name of the anomaly that was detected).
+    optional int64 alert_id = 3;
 }
 
 /**
diff --git a/cmds/statsd/src/condition/CombinationConditionTracker.cpp b/cmds/statsd/src/condition/CombinationConditionTracker.cpp
index 52b83d8..afa26f6 100644
--- a/cmds/statsd/src/condition/CombinationConditionTracker.cpp
+++ b/cmds/statsd/src/condition/CombinationConditionTracker.cpp
@@ -30,20 +30,20 @@
 using std::unordered_map;
 using std::vector;
 
-CombinationConditionTracker::CombinationConditionTracker(const string& name, const int index)
-    : ConditionTracker(name, index) {
-    VLOG("creating CombinationConditionTracker %s", mName.c_str());
+CombinationConditionTracker::CombinationConditionTracker(const int64_t& id, const int index)
+    : ConditionTracker(id, index) {
+    VLOG("creating CombinationConditionTracker %lld", (long long)mConditionId);
 }
 
 CombinationConditionTracker::~CombinationConditionTracker() {
-    VLOG("~CombinationConditionTracker() %s", mName.c_str());
+    VLOG("~CombinationConditionTracker() %lld", (long long)mConditionId);
 }
 
 bool CombinationConditionTracker::init(const vector<Predicate>& allConditionConfig,
                                        const vector<sp<ConditionTracker>>& allConditionTrackers,
-                                       const unordered_map<string, int>& conditionNameIndexMap,
+                                       const unordered_map<int64_t, int>& conditionIdIndexMap,
                                        vector<bool>& stack) {
-    VLOG("Combination predicate init() %s", mName.c_str());
+    VLOG("Combination predicate init() %lld", (long long)mConditionId);
     if (mInitialized) {
         return true;
     }
@@ -62,11 +62,11 @@
         return false;
     }
 
-    for (string child : combinationCondition.predicate()) {
-        auto it = conditionNameIndexMap.find(child);
+    for (auto child : combinationCondition.predicate()) {
+        auto it = conditionIdIndexMap.find(child);
 
-        if (it == conditionNameIndexMap.end()) {
-            ALOGW("Predicate %s not found in the config", child.c_str());
+        if (it == conditionIdIndexMap.end()) {
+            ALOGW("Predicate %lld not found in the config", (long long)child);
             return false;
         }
 
@@ -79,13 +79,13 @@
         }
 
         bool initChildSucceeded = childTracker->init(allConditionConfig, allConditionTrackers,
-                                                     conditionNameIndexMap, stack);
+                                                     conditionIdIndexMap, stack);
 
         if (!initChildSucceeded) {
-            ALOGW("Child initialization failed %s ", child.c_str());
+            ALOGW("Child initialization failed %lld ", (long long)child);
             return false;
         } else {
-            ALOGW("Child initialization success %s ", child.c_str());
+            ALOGW("Child initialization success %lld ", (long long)child);
         }
 
         mChildren.push_back(childIndex);
@@ -154,8 +154,8 @@
             }
         }
         nonSlicedConditionCache[mIndex] = ConditionState::kUnknown;
-        ALOGD("CombinationPredicate %s sliced may changed? %d", mName.c_str(),
-              conditionChangedCache[mIndex] == true);
+        ALOGD("CombinationPredicate %lld sliced may changed? %d", (long long)mConditionId,
+            conditionChangedCache[mIndex] == true);
     }
 }
 
diff --git a/cmds/statsd/src/condition/CombinationConditionTracker.h b/cmds/statsd/src/condition/CombinationConditionTracker.h
index 8942833..dfd3837 100644
--- a/cmds/statsd/src/condition/CombinationConditionTracker.h
+++ b/cmds/statsd/src/condition/CombinationConditionTracker.h
@@ -26,13 +26,13 @@
 
 class CombinationConditionTracker : public virtual ConditionTracker {
 public:
-    CombinationConditionTracker(const std::string& name, const int index);
+    CombinationConditionTracker(const int64_t& id, const int index);
 
     ~CombinationConditionTracker();
 
     bool init(const std::vector<Predicate>& allConditionConfig,
               const std::vector<sp<ConditionTracker>>& allConditionTrackers,
-              const std::unordered_map<std::string, int>& conditionNameIndexMap,
+              const std::unordered_map<int64_t, int>& conditionIdIndexMap,
               std::vector<bool>& stack) override;
 
     void evaluateCondition(const LogEvent& event,
diff --git a/cmds/statsd/src/condition/ConditionTracker.h b/cmds/statsd/src/condition/ConditionTracker.h
index 1154b6f..773860f 100644
--- a/cmds/statsd/src/condition/ConditionTracker.h
+++ b/cmds/statsd/src/condition/ConditionTracker.h
@@ -32,8 +32,8 @@
 
 class ConditionTracker : public virtual RefBase {
 public:
-    ConditionTracker(const std::string& name, const int index)
-        : mName(name),
+    ConditionTracker(const int64_t& id, const int index)
+        : mConditionId(id),
           mIndex(index),
           mInitialized(false),
           mTrackerIndex(),
@@ -42,7 +42,7 @@
 
     virtual ~ConditionTracker(){};
 
-    inline const string& getName() { return mName; }
+    inline const int64_t& getId() { return mConditionId; }
 
     // Initialize this ConditionTracker. This initialization is done recursively (DFS). It can also
     // be done in the constructor, but we do it separately because (1) easy to return a bool to
@@ -50,11 +50,11 @@
     // allConditionConfig: the list of all Predicate config from statsd_config.
     // allConditionTrackers: the list of all ConditionTrackers (this is needed because we may also
     //                       need to call init() on children conditions)
-    // conditionNameIndexMap: the mapping from condition name to its index.
+    // conditionIdIndexMap: the mapping from condition id to its index.
     // stack: a bit map to keep track which nodes have been visited on the stack in the recursion.
     virtual bool init(const std::vector<Predicate>& allConditionConfig,
                       const std::vector<sp<ConditionTracker>>& allConditionTrackers,
-                      const std::unordered_map<std::string, int>& conditionNameIndexMap,
+                      const std::unordered_map<int64_t, int>& conditionIdIndexMap,
                       std::vector<bool>& stack) = 0;
 
     // evaluate current condition given the new event.
@@ -99,9 +99,7 @@
     }
 
 protected:
-    // We don't really need the string name, but having a name here makes log messages
-    // easy to debug.
-    const std::string mName;
+    const int64_t mConditionId;
 
     // the index of this condition in the manager's condition list.
     const int mIndex;
diff --git a/cmds/statsd/src/condition/SimpleConditionTracker.cpp b/cmds/statsd/src/condition/SimpleConditionTracker.cpp
index 1803cbb..2525721 100644
--- a/cmds/statsd/src/condition/SimpleConditionTracker.cpp
+++ b/cmds/statsd/src/condition/SimpleConditionTracker.cpp
@@ -33,17 +33,17 @@
 using std::vector;
 
 SimpleConditionTracker::SimpleConditionTracker(
-        const ConfigKey& key, const string& name, const int index,
+        const ConfigKey& key, const int64_t& id, const int index,
         const SimplePredicate& simplePredicate,
-        const unordered_map<string, int>& trackerNameIndexMap)
-    : ConditionTracker(name, index), mConfigKey(key) {
-    VLOG("creating SimpleConditionTracker %s", mName.c_str());
+        const unordered_map<int64_t, int>& trackerNameIndexMap)
+    : ConditionTracker(id, index), mConfigKey(key) {
+    VLOG("creating SimpleConditionTracker %lld", (long long)mConditionId);
     mCountNesting = simplePredicate.count_nesting();
 
     if (simplePredicate.has_start()) {
         auto pair = trackerNameIndexMap.find(simplePredicate.start());
         if (pair == trackerNameIndexMap.end()) {
-            ALOGW("Start matcher %s not found in the config", simplePredicate.start().c_str());
+            ALOGW("Start matcher %lld not found in the config", (long long)simplePredicate.start());
             return;
         }
         mStartLogMatcherIndex = pair->second;
@@ -55,7 +55,7 @@
     if (simplePredicate.has_stop()) {
         auto pair = trackerNameIndexMap.find(simplePredicate.stop());
         if (pair == trackerNameIndexMap.end()) {
-            ALOGW("Stop matcher %s not found in the config", simplePredicate.stop().c_str());
+            ALOGW("Stop matcher %lld not found in the config", (long long)simplePredicate.stop());
             return;
         }
         mStopLogMatcherIndex = pair->second;
@@ -67,7 +67,7 @@
     if (simplePredicate.has_stop_all()) {
         auto pair = trackerNameIndexMap.find(simplePredicate.stop_all());
         if (pair == trackerNameIndexMap.end()) {
-            ALOGW("Stop all matcher %s not found in the config", simplePredicate.stop().c_str());
+            ALOGW("Stop all matcher %lld found in the config", (long long)simplePredicate.stop_all());
             return;
         }
         mStopAllLogMatcherIndex = pair->second;
@@ -99,15 +99,15 @@
 
 bool SimpleConditionTracker::init(const vector<Predicate>& allConditionConfig,
                                   const vector<sp<ConditionTracker>>& allConditionTrackers,
-                                  const unordered_map<string, int>& conditionNameIndexMap,
+                                  const unordered_map<int64_t, int>& conditionIdIndexMap,
                                   vector<bool>& stack) {
     // SimpleConditionTracker does not have dependency on other conditions, thus we just return
     // if the initialization was successful.
     return mInitialized;
 }
 
-void print(map<HashableDimensionKey, int>& conditions, const string& name) {
-    VLOG("%s DUMP:", name.c_str());
+void print(map<HashableDimensionKey, int>& conditions, const int64_t& id) {
+    VLOG("%lld DUMP:", (long long)id);
     for (const auto& pair : conditions) {
         VLOG("\t%s : %d", pair.first.c_str(), pair.second);
     }
@@ -135,10 +135,11 @@
     // 1. Report the tuple count if the tuple count > soft limit
     if (mSlicedConditionState.size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mSlicedConditionState.size() + 1;
-        StatsdStats::getInstance().noteConditionDimensionSize(mConfigKey, mName, newTupleCount);
+        StatsdStats::getInstance().noteConditionDimensionSize(mConfigKey, mConditionId, newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("Predicate %s dropping data for dimension key %s", mName.c_str(), newKey.c_str());
+            ALOGE("Predicate %lld dropping data for dimension key %s",
+                (long long)mConditionId, newKey.c_str());
             return true;
         }
     }
@@ -222,13 +223,13 @@
 
     // dump all dimensions for debugging
     if (DEBUG) {
-        print(mSlicedConditionState, mName);
+        print(mSlicedConditionState, mConditionId);
     }
 
     conditionChangedCache[mIndex] = changed;
     conditionCache[mIndex] = newCondition;
 
-    VLOG("SimplePredicate %s nonSlicedChange? %d", mName.c_str(),
+    VLOG("SimplePredicate %lld nonSlicedChange? %d", (long long)mConditionId,
          conditionChangedCache[mIndex] == true);
 }
 
@@ -239,7 +240,8 @@
                                                vector<bool>& conditionChangedCache) {
     if (conditionCache[mIndex] != ConditionState::kNotEvaluated) {
         // it has been evaluated.
-        VLOG("Yes, already evaluated, %s %d", mName.c_str(), conditionCache[mIndex]);
+        VLOG("Yes, already evaluated, %lld %d",
+            (long long)mConditionId, conditionCache[mIndex]);
         return;
     }
 
@@ -320,11 +322,11 @@
         const ConditionKey& conditionParameters,
         const vector<sp<ConditionTracker>>& allConditions,
         vector<ConditionState>& conditionCache) const {
-    const auto pair = conditionParameters.find(mName);
+    const auto pair = conditionParameters.find(mConditionId);
 
     if (pair == conditionParameters.end() && mOutputDimensions.child_size() > 0) {
-        ALOGE("Predicate %s output has dimension, but it's not specified in the query!",
-              mName.c_str());
+        ALOGE("Predicate %lld output has dimension, but it's not specified in the query!",
+              (long long)mConditionId);
         conditionCache[mIndex] = mInitialValue;
         return;
     }
@@ -343,7 +345,7 @@
         }
     }
     conditionCache[mIndex] = conditionState;
-    VLOG("Predicate %s return %d", mName.c_str(), conditionCache[mIndex]);
+    VLOG("Predicate %lld return %d", (long long)mConditionId, conditionCache[mIndex]);
 }
 
 }  // namespace statsd
diff --git a/cmds/statsd/src/condition/SimpleConditionTracker.h b/cmds/statsd/src/condition/SimpleConditionTracker.h
index 5048635..815b445 100644
--- a/cmds/statsd/src/condition/SimpleConditionTracker.h
+++ b/cmds/statsd/src/condition/SimpleConditionTracker.h
@@ -29,15 +29,15 @@
 
 class SimpleConditionTracker : public virtual ConditionTracker {
 public:
-    SimpleConditionTracker(const ConfigKey& key, const std::string& name, const int index,
+    SimpleConditionTracker(const ConfigKey& key, const int64_t& id, const int index,
                            const SimplePredicate& simplePredicate,
-                           const std::unordered_map<std::string, int>& trackerNameIndexMap);
+                           const std::unordered_map<int64_t, int>& trackerNameIndexMap);
 
     ~SimpleConditionTracker();
 
     bool init(const std::vector<Predicate>& allConditionConfig,
               const std::vector<sp<ConditionTracker>>& allConditionTrackers,
-              const std::unordered_map<std::string, int>& conditionNameIndexMap,
+              const std::unordered_map<int64_t, int>& conditionIdIndexMap,
               std::vector<bool>& stack) override;
 
     void evaluateCondition(const LogEvent& event,
diff --git a/cmds/statsd/src/config/ConfigKey.cpp b/cmds/statsd/src/config/ConfigKey.cpp
index a365dc0..d791f86 100644
--- a/cmds/statsd/src/config/ConfigKey.cpp
+++ b/cmds/statsd/src/config/ConfigKey.cpp
@@ -27,10 +27,10 @@
 ConfigKey::ConfigKey() {
 }
 
-ConfigKey::ConfigKey(const ConfigKey& that) : mName(that.mName), mUid(that.mUid) {
+ConfigKey::ConfigKey(const ConfigKey& that) : mId(that.mId), mUid(that.mUid) {
 }
 
-ConfigKey::ConfigKey(int uid, const string& name) : mName(name), mUid(uid) {
+ConfigKey::ConfigKey(int uid, const int64_t& id) : mId(id), mUid(uid) {
 }
 
 ConfigKey::~ConfigKey() {
@@ -38,10 +38,21 @@
 
 string ConfigKey::ToString() const {
     ostringstream out;
-    out << '(' << mUid << ',' << mName << ')';
+    out << '(' << mUid << ',' << mId << ')';
     return out.str();
 }
 
+
+int64_t StrToInt64(const string& str) {
+    char* endp;
+    int64_t value;
+    value = strtoll(str.c_str(), &endp, 0);
+    if (endp == str.c_str() || *endp != '\0') {
+        value = 0;
+    }
+    return value;
+}
+
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
diff --git a/cmds/statsd/src/config/ConfigKey.h b/cmds/statsd/src/config/ConfigKey.h
index 3489c43..3ad0eed 100644
--- a/cmds/statsd/src/config/ConfigKey.h
+++ b/cmds/statsd/src/config/ConfigKey.h
@@ -37,14 +37,14 @@
 public:
     ConfigKey();
     explicit ConfigKey(const ConfigKey& that);
-    ConfigKey(int uid, const string& name);
+    ConfigKey(int uid, const int64_t& id);
     ~ConfigKey();
 
     inline int GetUid() const {
         return mUid;
     }
-    inline const string& GetName() const {
-        return mName;
+    inline const int64_t& GetId() const {
+        return mId;
     }
 
     inline bool operator<(const ConfigKey& that) const {
@@ -54,17 +54,17 @@
         if (mUid > that.mUid) {
             return false;
         }
-        return mName < that.mName;
+        return mId < that.mId;
     };
 
     inline bool operator==(const ConfigKey& that) const {
-        return mUid == that.mUid && mName == that.mName;
+        return mUid == that.mUid && mId == that.mId;
     };
 
     string ToString() const;
 
 private:
-    string mName;
+    int64_t mId;
     int mUid;
 };
 
@@ -72,6 +72,8 @@
     return os << config.ToString();
 }
 
+int64_t StrToInt64(const string& str);
+
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
@@ -87,7 +89,7 @@
 template <>
 struct hash<ConfigKey> {
     std::size_t operator()(const ConfigKey& key) const {
-        return (7 * key.GetUid()) ^ ((hash<string>()(key.GetName())));
+        return (7 * key.GetUid()) ^ ((hash<long long>()(key.GetId())));
     }
 };
 
diff --git a/cmds/statsd/src/config/ConfigManager.cpp b/cmds/statsd/src/config/ConfigManager.cpp
index addc111..de75c71 100644
--- a/cmds/statsd/src/config/ConfigManager.cpp
+++ b/cmds/statsd/src/config/ConfigManager.cpp
@@ -103,7 +103,7 @@
 }
 
 void ConfigManager::remove_saved_configs(const ConfigKey& key) {
-    string prefix = StringPrintf("%d-%s", key.GetUid(), key.GetName().c_str());
+    string prefix = StringPrintf("%d-%lld", key.GetUid(), (long long)key.GetId());
     StorageManager::deletePrefixedFiles(STATS_SERVICE_DIR, prefix.c_str());
 }
 
@@ -173,7 +173,7 @@
     fprintf(out, "CONFIGURATIONS (%d)\n", (int)mConfigs.size());
     fprintf(out, "     uid name\n");
     for (const auto& key : mConfigs) {
-        fprintf(out, "  %6d %s\n", key.GetUid(), key.GetName().c_str());
+        fprintf(out, "  %6d %lld\n", key.GetUid(), (long long)key.GetId());
         auto receiverIt = mConfigReceivers.find(key);
         if (receiverIt != mConfigReceivers.end()) {
             fprintf(out, "    -> received by %s, %s\n", receiverIt->second.first.c_str(),
@@ -189,8 +189,8 @@
     remove_saved_configs(key);
 
     // Then we save the latest config.
-    string file_name = StringPrintf("%s/%d-%s-%ld", STATS_SERVICE_DIR, key.GetUid(),
-                                    key.GetName().c_str(), time(nullptr));
+    string file_name = StringPrintf("%s/%d-%lld-%ld", STATS_SERVICE_DIR, key.GetUid(),
+                                    (long long)key.GetId(), time(nullptr));
     const int numBytes = config.ByteSize();
     vector<uint8_t> buffer(numBytes);
     config.SerializeToArray(&buffer[0], numBytes);
@@ -200,7 +200,7 @@
 StatsdConfig build_fake_config() {
     // HACK: Hard code a test metric for counting screen on events...
     StatsdConfig config;
-    config.set_name("CONFIG_12345");
+    config.set_id(12345);
 
     int WAKE_LOCK_TAG_ID = 1111;  // put a fake id here to make testing easier.
     int WAKE_LOCK_UID_KEY_ID = 1;
@@ -232,14 +232,14 @@
 
     // Count Screen ON events.
     CountMetric* metric = config.add_count_metric();
-    metric->set_name("METRIC_1");
-    metric->set_what("SCREEN_TURNED_ON");
+    metric->set_id(1);  // METRIC_1
+    metric->set_what(102);  //  "SCREEN_TURNED_ON"
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
 
     // Anomaly threshold for screen-on count.
     // TODO(b/70627390): Uncomment once the bug is fixed.
     /*Alert* alert = config.add_alert();
-    alert->set_name("ALERT_1");
+    alert->set_id("ALERT_1");
     alert->set_metric_name("METRIC_1");
     alert->set_number_of_buckets(6);
     alert->set_trigger_if_sum_gt(10);
@@ -256,8 +256,8 @@
 
     // Count process state changes, slice by uid.
     metric = config.add_count_metric();
-    metric->set_name("METRIC_2");
-    metric->set_what("PROCESS_STATE_CHANGE");
+    metric->set_id(2);  // "METRIC_2"
+    metric->set_what(104);
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     FieldMatcher* dimensions = metric->mutable_dimensions();
     dimensions->set_field(UID_PROCESS_STATE_TAG_ID);
@@ -267,7 +267,7 @@
     // TODO(b/70627390): Uncomment once the bug is fixed.
     /*
     alert = config.add_alert();
-    alert->set_name("ALERT_2");
+    alert->set_id("ALERT_2");
     alert->set_metric_name("METRIC_2");
     alert->set_number_of_buckets(4);
     alert->set_trigger_if_sum_gt(30);
@@ -278,28 +278,28 @@
 
     // Count process state changes, slice by uid, while SCREEN_IS_OFF
     metric = config.add_count_metric();
-    metric->set_name("METRIC_3");
-    metric->set_what("PROCESS_STATE_CHANGE");
+    metric->set_id(3);
+    metric->set_what(104);
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
 
     dimensions = metric->mutable_dimensions();
     dimensions->set_field(UID_PROCESS_STATE_TAG_ID);
     dimensions->add_child()->set_field(UID_PROCESS_STATE_UID_KEY);
-    metric->set_condition("SCREEN_IS_OFF");
+    metric->set_condition(202);
 
     // Count wake lock, slice by uid, while SCREEN_IS_ON and app in background
     metric = config.add_count_metric();
-    metric->set_name("METRIC_4");
-    metric->set_what("APP_GET_WL");
+    metric->set_id(4);
+    metric->set_what(107);
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     dimensions = metric->mutable_dimensions();
     dimensions->set_field(WAKE_LOCK_TAG_ID);
     dimensions->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
 
 
-    metric->set_condition("APP_IS_BACKGROUND_AND_SCREEN_ON");
+    metric->set_condition(204);
     MetricConditionLink* link = metric->add_links();
-    link->set_condition("APP_IS_BACKGROUND");
+    link->set_condition(203);
     link->mutable_dimensions_in_what()->set_field(WAKE_LOCK_TAG_ID);
     link->mutable_dimensions_in_what()->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
     link->mutable_dimensions_in_condition()->set_field(APP_USAGE_TAG_ID);
@@ -307,16 +307,16 @@
 
     // Duration of an app holding any wl, while screen on and app in background, slice by uid
     DurationMetric* durationMetric = config.add_duration_metric();
-    durationMetric->set_name("METRIC_5");
+    durationMetric->set_id(5);
     durationMetric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     durationMetric->set_aggregation_type(DurationMetric_AggregationType_SUM);
     dimensions = durationMetric->mutable_dimensions();
     dimensions->set_field(WAKE_LOCK_TAG_ID);
     dimensions->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
-    durationMetric->set_what("WL_HELD_PER_APP_PER_NAME");
-    durationMetric->set_condition("APP_IS_BACKGROUND_AND_SCREEN_ON");
+    durationMetric->set_what(205);
+    durationMetric->set_condition(204);
     link = durationMetric->add_links();
-    link->set_condition("APP_IS_BACKGROUND");
+    link->set_condition(203);
     link->mutable_dimensions_in_what()->set_field(WAKE_LOCK_TAG_ID);
     link->mutable_dimensions_in_what()->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
     link->mutable_dimensions_in_condition()->set_field(APP_USAGE_TAG_ID);
@@ -324,16 +324,16 @@
 
     // max Duration of an app holding any wl, while screen on and app in background, slice by uid
     durationMetric = config.add_duration_metric();
-    durationMetric->set_name("METRIC_6");
+    durationMetric->set_id(6);
     durationMetric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     durationMetric->set_aggregation_type(DurationMetric_AggregationType_MAX_SPARSE);
     dimensions = durationMetric->mutable_dimensions();
     dimensions->set_field(WAKE_LOCK_TAG_ID);
     dimensions->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
-    durationMetric->set_what("WL_HELD_PER_APP_PER_NAME");
-    durationMetric->set_condition("APP_IS_BACKGROUND_AND_SCREEN_ON");
+    durationMetric->set_what(205);
+    durationMetric->set_condition(204);
     link = durationMetric->add_links();
-    link->set_condition("APP_IS_BACKGROUND");
+    link->set_condition(203);
     link->mutable_dimensions_in_what()->set_field(WAKE_LOCK_TAG_ID);
     link->mutable_dimensions_in_what()->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
     link->mutable_dimensions_in_condition()->set_field(APP_USAGE_TAG_ID);
@@ -341,13 +341,13 @@
 
     // Duration of an app holding any wl, while screen on and app in background
     durationMetric = config.add_duration_metric();
-    durationMetric->set_name("METRIC_7");
+    durationMetric->set_id(7);
     durationMetric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     durationMetric->set_aggregation_type(DurationMetric_AggregationType_MAX_SPARSE);
-    durationMetric->set_what("WL_HELD_PER_APP_PER_NAME");
-    durationMetric->set_condition("APP_IS_BACKGROUND_AND_SCREEN_ON");
+    durationMetric->set_what(205);
+    durationMetric->set_condition(204);
     link = durationMetric->add_links();
-    link->set_condition("APP_IS_BACKGROUND");
+    link->set_condition(203);
     link->mutable_dimensions_in_what()->set_field(WAKE_LOCK_TAG_ID);
     link->mutable_dimensions_in_what()->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
     link->mutable_dimensions_in_condition()->set_field(APP_USAGE_TAG_ID);
@@ -356,17 +356,17 @@
 
     // Duration of screen on time.
     durationMetric = config.add_duration_metric();
-    durationMetric->set_name("METRIC_8");
+    durationMetric->set_id(8);
     durationMetric->mutable_bucket()->set_bucket_size_millis(10 * 1000L);
     durationMetric->set_aggregation_type(DurationMetric_AggregationType_SUM);
-    durationMetric->set_what("SCREEN_IS_ON");
+    durationMetric->set_what(201);
 
     // Anomaly threshold for background count.
     // TODO(b/70627390): Uncomment once the bug is fixed.
     /*
     alert = config.add_alert();
-    alert->set_name("ALERT_8");
-    alert->set_metric_name("METRIC_8");
+    alert->set_id(308);
+    alert->set_metric_id(8);
     alert->set_number_of_buckets(4);
     alert->set_trigger_if_sum_gt(2000000000); // 2 seconds
     alert->set_refractory_period_secs(120);
@@ -375,10 +375,11 @@
 
     // Value metric to count KERNEL_WAKELOCK when screen turned on
     ValueMetric* valueMetric = config.add_value_metric();
-    valueMetric->set_name("METRIC_6");
-    valueMetric->set_what("KERNEL_WAKELOCK");
-    valueMetric->set_value_field(KERNEL_WAKELOCK_COUNT_KEY);
-    valueMetric->set_condition("SCREEN_IS_ON");
+    valueMetric->set_id(11);
+    valueMetric->set_what(109);
+    valueMetric->mutable_value_field()->set_field(KERNEL_WAKELOCK_TAG_ID);
+    valueMetric->mutable_value_field()->add_child()->set_field(KERNEL_WAKELOCK_COUNT_KEY);
+    valueMetric->set_condition(201);
     dimensions = valueMetric->mutable_dimensions();
     dimensions->set_field(KERNEL_WAKELOCK_TAG_ID);
     dimensions->add_child()->set_field(KERNEL_WAKELOCK_NAME_KEY);
@@ -387,13 +388,13 @@
 
     // Add an EventMetric to log process state change events.
     EventMetric* eventMetric = config.add_event_metric();
-    eventMetric->set_name("METRIC_9");
-    eventMetric->set_what("SCREEN_TURNED_ON");
+    eventMetric->set_id(9);
+    eventMetric->set_what(102); // "SCREEN_TURNED_ON"
 
     // Add an GaugeMetric.
     GaugeMetric* gaugeMetric = config.add_gauge_metric();
-    gaugeMetric->set_name("METRIC_10");
-    gaugeMetric->set_what("DEVICE_TEMPERATURE");
+    gaugeMetric->set_id(10);
+    gaugeMetric->set_what(101);
     auto gaugeFieldMatcher = gaugeMetric->mutable_gauge_fields_filter()->mutable_fields();
     gaugeFieldMatcher->set_field(DEVICE_TEMPERATURE_TAG_ID);
     gaugeFieldMatcher->add_child()->set_field(DEVICE_TEMPERATURE_KEY);
@@ -401,12 +402,12 @@
 
     // Event matchers.
     AtomMatcher* temperatureAtomMatcher = config.add_atom_matcher();
-    temperatureAtomMatcher->set_name("DEVICE_TEMPERATURE");
+    temperatureAtomMatcher->set_id(101);  // "DEVICE_TEMPERATURE"
     temperatureAtomMatcher->mutable_simple_atom_matcher()->set_atom_id(
         DEVICE_TEMPERATURE_TAG_ID);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_TURNED_ON");
+    eventMatcher->set_id(102);  // "SCREEN_TURNED_ON"
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(SCREEN_EVENT_TAG_ID);
     FieldValueMatcher* fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -414,7 +415,7 @@
     fieldValueMatcher->set_eq_int(SCREEN_EVENT_ON_VALUE);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_TURNED_OFF");
+    eventMatcher->set_id(103);  // "SCREEN_TURNED_OFF"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(SCREEN_EVENT_TAG_ID);
     fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -422,12 +423,12 @@
     fieldValueMatcher->set_eq_int(SCREEN_EVENT_OFF_VALUE);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("PROCESS_STATE_CHANGE");
+    eventMatcher->set_id(104);  // "PROCESS_STATE_CHANGE"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(UID_PROCESS_STATE_TAG_ID);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("APP_GOES_BACKGROUND");
+    eventMatcher->set_id(105);  // "APP_GOES_BACKGROUND"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(APP_USAGE_TAG_ID);
     fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -435,7 +436,7 @@
     fieldValueMatcher->set_eq_int(APP_USAGE_BACKGROUND);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("APP_GOES_FOREGROUND");
+    eventMatcher->set_id(106);  // "APP_GOES_FOREGROUND"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(APP_USAGE_TAG_ID);
     fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -443,7 +444,7 @@
     fieldValueMatcher->set_eq_int(APP_USAGE_FOREGROUND);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("APP_GET_WL");
+    eventMatcher->set_id(107);  // "APP_GET_WL"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(WAKE_LOCK_TAG_ID);
     fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -451,7 +452,7 @@
     fieldValueMatcher->set_eq_int(WAKE_LOCK_ACQUIRE_VALUE);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("APP_RELEASE_WL");
+    eventMatcher->set_id(108);  //"APP_RELEASE_WL"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(WAKE_LOCK_TAG_ID);
     fieldValueMatcher = simpleAtomMatcher->add_field_value_matcher();
@@ -460,47 +461,47 @@
 
     // pulled events
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("KERNEL_WAKELOCK");
+    eventMatcher->set_id(109);  // "KERNEL_WAKELOCK"
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(KERNEL_WAKELOCK_TAG_ID);
 
     // Predicates.............
     Predicate* predicate = config.add_predicate();
-    predicate->set_name("SCREEN_IS_ON");
+    predicate->set_id(201);  // "SCREEN_IS_ON"
     SimplePredicate* simplePredicate = predicate->mutable_simple_predicate();
-    simplePredicate->set_start("SCREEN_TURNED_ON");
-    simplePredicate->set_stop("SCREEN_TURNED_OFF");
+    simplePredicate->set_start(102);  // "SCREEN_TURNED_ON"
+    simplePredicate->set_stop(103);
     simplePredicate->set_count_nesting(false);
 
     predicate = config.add_predicate();
-    predicate->set_name("SCREEN_IS_OFF");
+    predicate->set_id(202);  // "SCREEN_IS_OFF"
     simplePredicate = predicate->mutable_simple_predicate();
-    simplePredicate->set_start("SCREEN_TURNED_OFF");
-    simplePredicate->set_stop("SCREEN_TURNED_ON");
+    simplePredicate->set_start(103);
+    simplePredicate->set_stop(102);  // "SCREEN_TURNED_ON"
     simplePredicate->set_count_nesting(false);
 
     predicate = config.add_predicate();
-    predicate->set_name("APP_IS_BACKGROUND");
+    predicate->set_id(203);  // "APP_IS_BACKGROUND"
     simplePredicate = predicate->mutable_simple_predicate();
-    simplePredicate->set_start("APP_GOES_BACKGROUND");
-    simplePredicate->set_stop("APP_GOES_FOREGROUND");
+    simplePredicate->set_start(105);
+    simplePredicate->set_stop(106);
     FieldMatcher* predicate_dimension1 = simplePredicate->mutable_dimensions();
     predicate_dimension1->set_field(APP_USAGE_TAG_ID);
     predicate_dimension1->add_child()->set_field(APP_USAGE_UID_KEY_ID);
     simplePredicate->set_count_nesting(false);
 
     predicate = config.add_predicate();
-    predicate->set_name("APP_IS_BACKGROUND_AND_SCREEN_ON");
+    predicate->set_id(204);  // "APP_IS_BACKGROUND_AND_SCREEN_ON"
     Predicate_Combination* combination_predicate = predicate->mutable_combination();
     combination_predicate->set_operation(LogicalOperation::AND);
-    combination_predicate->add_predicate("APP_IS_BACKGROUND");
-    combination_predicate->add_predicate("SCREEN_IS_ON");
+    combination_predicate->add_predicate(203);
+    combination_predicate->add_predicate(201);
 
     predicate = config.add_predicate();
-    predicate->set_name("WL_HELD_PER_APP_PER_NAME");
+    predicate->set_id(205);  // "WL_HELD_PER_APP_PER_NAME"
     simplePredicate = predicate->mutable_simple_predicate();
-    simplePredicate->set_start("APP_GET_WL");
-    simplePredicate->set_stop("APP_RELEASE_WL");
+    simplePredicate->set_start(107);
+    simplePredicate->set_stop(108);
     FieldMatcher* predicate_dimension = simplePredicate->mutable_dimensions();
     predicate_dimension1->set_field(WAKE_LOCK_TAG_ID);
     predicate_dimension->add_child()->set_field(WAKE_LOCK_UID_KEY_ID);
@@ -508,10 +509,10 @@
     simplePredicate->set_count_nesting(true);
 
     predicate = config.add_predicate();
-    predicate->set_name("WL_HELD_PER_APP");
+    predicate->set_id(206);  // "WL_HELD_PER_APP"
     simplePredicate = predicate->mutable_simple_predicate();
-    simplePredicate->set_start("APP_GET_WL");
-    simplePredicate->set_stop("APP_RELEASE_WL");
+    simplePredicate->set_start(107);
+    simplePredicate->set_stop(108);
     simplePredicate->set_initial_value(SimplePredicate_InitialValue_FALSE);
     predicate_dimension = simplePredicate->mutable_dimensions();
     predicate_dimension->set_field(WAKE_LOCK_TAG_ID);
diff --git a/cmds/statsd/src/dimension.cpp b/cmds/statsd/src/dimension.cpp
index 886a33b..8c0ae97 100644
--- a/cmds/statsd/src/dimension.cpp
+++ b/cmds/statsd/src/dimension.cpp
@@ -351,6 +351,23 @@
     }
 }
 
+long getLongFromDimenValue(const DimensionsValue& dimensionValue) {
+    switch (dimensionValue.value_case()) {
+        case DimensionsValue::ValueCase::kValueInt:
+            return dimensionValue.value_int();
+        case DimensionsValue::ValueCase::kValueLong:
+            return dimensionValue.value_long();
+        case DimensionsValue::ValueCase::kValueBool:
+            return dimensionValue.value_bool() ? 1 : 0;
+        case DimensionsValue::ValueCase::kValueFloat:
+            return (int64_t)dimensionValue.value_float();
+        case DimensionsValue::ValueCase::kValueTuple:
+        case DimensionsValue::ValueCase::kValueStr:
+        case DimensionsValue::ValueCase::VALUE_NOT_SET:
+            return 0;
+    }
+}
+
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
diff --git a/cmds/statsd/src/dimension.h b/cmds/statsd/src/dimension.h
index c866958..5bb64a9 100644
--- a/cmds/statsd/src/dimension.h
+++ b/cmds/statsd/src/dimension.h
@@ -56,6 +56,8 @@
 
 bool IsSubDimension(const DimensionsValue& dimension, const DimensionsValue& sub);
 
+// Helper function to get long value from the DimensionsValue proto.
+long getLongFromDimenValue(const DimensionsValue& dimensionValue);
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
diff --git a/cmds/statsd/src/guardrail/StatsdStats.cpp b/cmds/statsd/src/guardrail/StatsdStats.cpp
index bf277f0..33927aa 100644
--- a/cmds/statsd/src/guardrail/StatsdStats.cpp
+++ b/cmds/statsd/src/guardrail/StatsdStats.cpp
@@ -80,7 +80,7 @@
 
     StatsdStatsReport_ConfigStats configStats;
     configStats.set_uid(key.GetUid());
-    configStats.set_name(key.GetName());
+    configStats.set_id(key.GetId());
     configStats.set_creation_time_sec(nowTimeSec);
     configStats.set_metric_count(metricsCount);
     configStats.set_condition_count(conditionsCount);
@@ -196,34 +196,34 @@
     mUidMapStats.set_bytes_used(bytes);
 }
 
-void StatsdStats::noteConditionDimensionSize(const ConfigKey& key, const string& name, int size) {
+void StatsdStats::noteConditionDimensionSize(const ConfigKey& key, const int64_t& id, int size) {
     lock_guard<std::mutex> lock(mLock);
     // if name doesn't exist before, it will create the key with count 0.
     auto& conditionSizeMap = mConditionStats[key];
-    if (size > conditionSizeMap[name]) {
-        conditionSizeMap[name] = size;
+    if (size > conditionSizeMap[id]) {
+        conditionSizeMap[id] = size;
     }
 }
 
-void StatsdStats::noteMetricDimensionSize(const ConfigKey& key, const string& name, int size) {
+void StatsdStats::noteMetricDimensionSize(const ConfigKey& key, const int64_t& id, int size) {
     lock_guard<std::mutex> lock(mLock);
     // if name doesn't exist before, it will create the key with count 0.
     auto& metricsDimensionMap = mMetricsStats[key];
-    if (size > metricsDimensionMap[name]) {
-        metricsDimensionMap[name] = size;
+    if (size > metricsDimensionMap[id]) {
+        metricsDimensionMap[id] = size;
     }
 }
 
-void StatsdStats::noteMatcherMatched(const ConfigKey& key, const string& name) {
+void StatsdStats::noteMatcherMatched(const ConfigKey& key, const int64_t& id) {
     lock_guard<std::mutex> lock(mLock);
     auto& matcherStats = mMatcherStats[key];
-    matcherStats[name]++;
+    matcherStats[id]++;
 }
 
-void StatsdStats::noteAnomalyDeclared(const ConfigKey& key, const string& name) {
+void StatsdStats::noteAnomalyDeclared(const ConfigKey& key, const int64_t& id) {
     lock_guard<std::mutex> lock(mLock);
     auto& alertStats = mAlertStats[key];
-    alertStats[name]++;
+    alertStats[id]++;
 }
 
 void StatsdStats::noteRegisteredAnomalyAlarmChanged() {
@@ -279,9 +279,10 @@
         const auto& matcherStats = mMatcherStats[key];
         for (const auto& stats : matcherStats) {
             auto output = configStats.add_matcher_stats();
-            output->set_name(stats.first);
+            output->set_id(stats.first);
             output->set_matched_times(stats.second);
-            VLOG("matcher %s matched %d times", stats.first.c_str(), stats.second);
+            VLOG("matcher %lld matched %d times",
+                (long long)stats.first, stats.second);
         }
     }
     // Add condition stats
@@ -289,9 +290,10 @@
         const auto& conditionStats = mConditionStats[key];
         for (const auto& stats : conditionStats) {
             auto output = configStats.add_condition_stats();
-            output->set_name(stats.first);
+            output->set_id(stats.first);
             output->set_max_tuple_counts(stats.second);
-            VLOG("condition %s max output tuple size %d", stats.first.c_str(), stats.second);
+            VLOG("condition %lld max output tuple size %d",
+                (long long)stats.first, stats.second);
         }
     }
     // Add metrics stats
@@ -299,9 +301,10 @@
         const auto& conditionStats = mMetricsStats[key];
         for (const auto& stats : conditionStats) {
             auto output = configStats.add_metric_stats();
-            output->set_name(stats.first);
+            output->set_id(stats.first);
             output->set_max_tuple_counts(stats.second);
-            VLOG("metrics %s max output tuple size %d", stats.first.c_str(), stats.second);
+            VLOG("metrics %lld max output tuple size %d",
+                (long long)stats.first, stats.second);
         }
     }
     // Add anomaly detection alert stats
@@ -309,9 +312,9 @@
         const auto& alertStats = mAlertStats[key];
         for (const auto& stats : alertStats) {
             auto output = configStats.add_alert_stats();
-            output->set_name(stats.first);
+            output->set_id(stats.first);
             output->set_alerted_times(stats.second);
-            VLOG("alert %s declared %d times", stats.first.c_str(), stats.second);
+            VLOG("alert %lld declared %d times", (long long)stats.first, stats.second);
         }
     }
 }
@@ -343,9 +346,9 @@
         // in production.
         if (DEBUG) {
             VLOG("*****ICEBOX*****");
-            VLOG("Config {%d-%s}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
+            VLOG("Config {%d-%lld}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
                  "#matcher=%d, #alert=%d,  #valid=%d",
-                 configStats.uid(), configStats.name().c_str(), configStats.creation_time_sec(),
+                 configStats.uid(), (long long)configStats.id(), configStats.creation_time_sec(),
                  configStats.deletion_time_sec(), configStats.metric_count(),
                  configStats.condition_count(), configStats.matcher_count(),
                  configStats.alert_count(), configStats.is_valid());
@@ -364,9 +367,9 @@
         auto& configStats = pair.second;
         if (DEBUG) {
             VLOG("********Active Configs***********");
-            VLOG("Config {%d-%s}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
+            VLOG("Config {%d-%lld}: creation=%d, deletion=%d, #metric=%d, #condition=%d, "
                  "#matcher=%d, #alert=%d,  #valid=%d",
-                 configStats.uid(), configStats.name().c_str(), configStats.creation_time_sec(),
+                 configStats.uid(), (long long)configStats.id(), configStats.creation_time_sec(),
                  configStats.deletion_time_sec(), configStats.metric_count(),
                  configStats.condition_count(), configStats.matcher_count(),
                  configStats.alert_count(), configStats.is_valid());
diff --git a/cmds/statsd/src/guardrail/StatsdStats.h b/cmds/statsd/src/guardrail/StatsdStats.h
index cb868e1f..45aa192 100644
--- a/cmds/statsd/src/guardrail/StatsdStats.h
+++ b/cmds/statsd/src/guardrail/StatsdStats.h
@@ -99,10 +99,10 @@
      * count > kDimensionKeySizeSoftLimit.
      *
      * [key]: The config key that this condition belongs to.
-     * [name]: The name of the condition.
+     * [id]: The id of the condition.
      * [size]: The output tuple size.
      */
-    void noteConditionDimensionSize(const ConfigKey& key, const std::string& name, int size);
+    void noteConditionDimensionSize(const ConfigKey& key, const int64_t& id, int size);
 
     /**
      * Report the size of output tuple of a metric.
@@ -111,26 +111,26 @@
      * count > kDimensionKeySizeSoftLimit.
      *
      * [key]: The config key that this metric belongs to.
-     * [name]: The name of the metric.
+     * [id]: The id of the metric.
      * [size]: The output tuple size.
      */
-    void noteMetricDimensionSize(const ConfigKey& key, const std::string& name, int size);
+    void noteMetricDimensionSize(const ConfigKey& key, const int64_t& id, int size);
 
     /**
      * Report a matcher has been matched.
      *
      * [key]: The config key that this matcher belongs to.
-     * [name]: The name of the matcher.
+     * [id]: The id of the matcher.
      */
-    void noteMatcherMatched(const ConfigKey& key, const std::string& name);
+    void noteMatcherMatched(const ConfigKey& key, const int64_t& id);
 
     /**
      * Report that an anomaly detection alert has been declared.
      *
      * [key]: The config key that this alert belongs to.
-     * [name]: The name of the alert.
+     * [id]: The id of the alert.
      */
-    void noteAnomalyDeclared(const ConfigKey& key, const std::string& name);
+    void noteAnomalyDeclared(const ConfigKey& key, const int64_t& id);
 
     /**
      * Report an atom event has been logged.
@@ -187,12 +187,12 @@
     // Stores the number of output tuple of condition trackers when it's bigger than
     // kDimensionKeySizeSoftLimit. When you see the number is kDimensionKeySizeHardLimit +1,
     // it means some data has been dropped.
-    std::map<const ConfigKey, std::map<const std::string, int>> mConditionStats;
+    std::map<const ConfigKey, std::map<const int64_t, int>> mConditionStats;
 
     // Stores the number of output tuple of metric producers when it's bigger than
     // kDimensionKeySizeSoftLimit. When you see the number is kDimensionKeySizeHardLimit +1,
     // it means some data has been dropped.
-    std::map<const ConfigKey, std::map<const std::string, int>> mMetricsStats;
+    std::map<const ConfigKey, std::map<const int64_t, int>> mMetricsStats;
 
     // Stores the number of times a pushed atom is logged.
     // The size of the vector is the largest pushed atom id in atoms.proto + 1. Atoms
@@ -206,10 +206,10 @@
 
     // Stores the number of times an anomaly detection alert has been declared
     // (per config, per alert name).
-    std::map<const ConfigKey, std::map<const std::string, int>> mAlertStats;
+    std::map<const ConfigKey, std::map<const int64_t, int>> mAlertStats;
 
     // Stores how many times a matcher have been matched.
-    std::map<const ConfigKey, std::map<const std::string, int>> mMatcherStats;
+    std::map<const ConfigKey, std::map<const int64_t, int>> mMatcherStats;
 
     void noteConfigRemovedInternalLocked(const ConfigKey& key);
 
diff --git a/cmds/statsd/src/matchers/CombinationLogMatchingTracker.cpp b/cmds/statsd/src/matchers/CombinationLogMatchingTracker.cpp
index bd5e3cb..15c067e 100644
--- a/cmds/statsd/src/matchers/CombinationLogMatchingTracker.cpp
+++ b/cmds/statsd/src/matchers/CombinationLogMatchingTracker.cpp
@@ -29,8 +29,8 @@
 using std::unordered_map;
 using std::vector;
 
-CombinationLogMatchingTracker::CombinationLogMatchingTracker(const string& name, const int index)
-    : LogMatchingTracker(name, index) {
+CombinationLogMatchingTracker::CombinationLogMatchingTracker(const int64_t& id, const int index)
+    : LogMatchingTracker(id, index) {
 }
 
 CombinationLogMatchingTracker::~CombinationLogMatchingTracker() {
@@ -38,7 +38,7 @@
 
 bool CombinationLogMatchingTracker::init(const vector<AtomMatcher>& allLogMatchers,
                                          const vector<sp<LogMatchingTracker>>& allTrackers,
-                                         const unordered_map<string, int>& matcherMap,
+                                         const unordered_map<int64_t, int>& matcherMap,
                                          vector<bool>& stack) {
     if (mInitialized) {
         return true;
@@ -60,10 +60,10 @@
         return false;
     }
 
-    for (const string& child : matcher.matcher()) {
+    for (const auto& child : matcher.matcher()) {
         auto pair = matcherMap.find(child);
         if (pair == matcherMap.end()) {
-            ALOGW("Matcher %s not found in the config", child.c_str());
+            ALOGW("Matcher %lld not found in the config", (long long)child);
             return false;
         }
 
@@ -76,7 +76,7 @@
         }
 
         if (!allTrackers[childIndex]->init(allLogMatchers, allTrackers, matcherMap, stack)) {
-            ALOGW("child matcher init failed %s", child.c_str());
+            ALOGW("child matcher init failed %lld", (long long)child);
             return false;
         }
 
diff --git a/cmds/statsd/src/matchers/CombinationLogMatchingTracker.h b/cmds/statsd/src/matchers/CombinationLogMatchingTracker.h
index 81f6e80..2a3f08d 100644
--- a/cmds/statsd/src/matchers/CombinationLogMatchingTracker.h
+++ b/cmds/statsd/src/matchers/CombinationLogMatchingTracker.h
@@ -31,11 +31,11 @@
 // Represents a AtomMatcher_Combination in the StatsdConfig.
 class CombinationLogMatchingTracker : public virtual LogMatchingTracker {
 public:
-    CombinationLogMatchingTracker(const std::string& name, const int index);
+    CombinationLogMatchingTracker(const int64_t& id, const int index);
 
     bool init(const std::vector<AtomMatcher>& allLogMatchers,
               const std::vector<sp<LogMatchingTracker>>& allTrackers,
-              const std::unordered_map<std::string, int>& matcherMap,
+              const std::unordered_map<int64_t, int>& matcherMap,
               std::vector<bool>& stack);
 
     ~CombinationLogMatchingTracker();
diff --git a/cmds/statsd/src/matchers/LogMatchingTracker.h b/cmds/statsd/src/matchers/LogMatchingTracker.h
index 567944f..4f30a04 100644
--- a/cmds/statsd/src/matchers/LogMatchingTracker.h
+++ b/cmds/statsd/src/matchers/LogMatchingTracker.h
@@ -33,8 +33,8 @@
 
 class LogMatchingTracker : public virtual RefBase {
 public:
-    LogMatchingTracker(const std::string& name, const int index)
-        : mName(name), mIndex(index), mInitialized(false){};
+    LogMatchingTracker(const int64_t& id, const int index)
+        : mId(id), mIndex(index), mInitialized(false){};
 
     virtual ~LogMatchingTracker(){};
 
@@ -48,7 +48,7 @@
     //        circle dependency.
     virtual bool init(const std::vector<AtomMatcher>& allLogMatchers,
                       const std::vector<sp<LogMatchingTracker>>& allTrackers,
-                      const std::unordered_map<std::string, int>& matcherMap,
+                      const std::unordered_map<int64_t, int>& matcherMap,
                       std::vector<bool>& stack) = 0;
 
     // Called when a log event comes.
@@ -69,13 +69,13 @@
         return mAtomIds;
     }
 
-    const std::string& getName() const {
-        return mName;
+    const int64_t& getId() const {
+        return mId;
     }
 
 protected:
     // Name of this matching. We don't really need the name, but it makes log message easy to debug.
-    const std::string mName;
+    const int64_t mId;
 
     // Index of this LogMatchingTracker in MetricsManager's container.
     const int mIndex;
diff --git a/cmds/statsd/src/matchers/SimpleLogMatchingTracker.cpp b/cmds/statsd/src/matchers/SimpleLogMatchingTracker.cpp
index 91ef034..31b3db5 100644
--- a/cmds/statsd/src/matchers/SimpleLogMatchingTracker.cpp
+++ b/cmds/statsd/src/matchers/SimpleLogMatchingTracker.cpp
@@ -29,10 +29,10 @@
 using std::vector;
 
 
-SimpleLogMatchingTracker::SimpleLogMatchingTracker(const string& name, const int index,
+SimpleLogMatchingTracker::SimpleLogMatchingTracker(const int64_t& id, const int index,
                                                    const SimpleAtomMatcher& matcher,
                                                    const UidMap& uidMap)
-    : LogMatchingTracker(name, index), mMatcher(matcher), mUidMap(uidMap) {
+    : LogMatchingTracker(id, index), mMatcher(matcher), mUidMap(uidMap) {
     if (!matcher.has_atom_id()) {
         mInitialized = false;
     } else {
@@ -46,7 +46,7 @@
 
 bool SimpleLogMatchingTracker::init(const vector<AtomMatcher>& allLogMatchers,
                                     const vector<sp<LogMatchingTracker>>& allTrackers,
-                                    const unordered_map<string, int>& matcherMap,
+                                    const unordered_map<int64_t, int>& matcherMap,
                                     vector<bool>& stack) {
     // no need to do anything.
     return mInitialized;
@@ -56,7 +56,7 @@
                                           const vector<sp<LogMatchingTracker>>& allTrackers,
                                           vector<MatchingState>& matcherResults) {
     if (matcherResults[mIndex] != MatchingState::kNotComputed) {
-        VLOG("Matcher %s already evaluated ", mName.c_str());
+        VLOG("Matcher %lld already evaluated ", (long long)mId);
         return;
     }
 
@@ -67,7 +67,7 @@
 
     bool matched = matchesSimple(mUidMap, mMatcher, event);
     matcherResults[mIndex] = matched ? MatchingState::kMatched : MatchingState::kNotMatched;
-    VLOG("Stats SimpleLogMatcher %s matched? %d", mName.c_str(), matched);
+    VLOG("Stats SimpleLogMatcher %lld matched? %d", (long long)mId, matched);
 }
 
 }  // namespace statsd
diff --git a/cmds/statsd/src/matchers/SimpleLogMatchingTracker.h b/cmds/statsd/src/matchers/SimpleLogMatchingTracker.h
index 68518f8..28b339c 100644
--- a/cmds/statsd/src/matchers/SimpleLogMatchingTracker.h
+++ b/cmds/statsd/src/matchers/SimpleLogMatchingTracker.h
@@ -32,7 +32,7 @@
 
 class SimpleLogMatchingTracker : public virtual LogMatchingTracker {
 public:
-    SimpleLogMatchingTracker(const std::string& name, const int index,
+    SimpleLogMatchingTracker(const int64_t& id, const int index,
                              const SimpleAtomMatcher& matcher,
                              const UidMap& uidMap);
 
@@ -40,7 +40,7 @@
 
     bool init(const std::vector<AtomMatcher>& allLogMatchers,
               const std::vector<sp<LogMatchingTracker>>& allTrackers,
-              const std::unordered_map<std::string, int>& matcherMap,
+              const std::unordered_map<int64_t, int>& matcherMap,
               std::vector<bool>& stack) override;
 
     void onLogEvent(const LogEvent& event,
diff --git a/cmds/statsd/src/metrics/CountMetricProducer.cpp b/cmds/statsd/src/metrics/CountMetricProducer.cpp
index 5bf3cff..a24364d 100644
--- a/cmds/statsd/src/metrics/CountMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/CountMetricProducer.cpp
@@ -43,7 +43,7 @@
 namespace statsd {
 
 // for StatsLogReport
-const int FIELD_ID_NAME = 1;
+const int FIELD_ID_ID = 1;
 const int FIELD_ID_START_REPORT_NANOS = 2;
 const int FIELD_ID_END_REPORT_NANOS = 3;
 const int FIELD_ID_COUNT_METRICS = 5;
@@ -61,7 +61,7 @@
                                          const int conditionIndex,
                                          const sp<ConditionWizard>& wizard,
                                          const uint64_t startTimeNs)
-    : MetricProducer(metric.name(), key, startTimeNs, conditionIndex, wizard) {
+    : MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard) {
     // TODO: evaluate initial conditions. and set mConditionMet.
     if (metric.has_bucket() && metric.bucket().has_bucket_size_millis()) {
         mBucketSizeNs = metric.bucket().bucket_size_millis() * 1000 * 1000;
@@ -78,7 +78,7 @@
         mConditionSliced = true;
     }
 
-    VLOG("metric %s created. bucket size %lld start_time: %lld", metric.name().c_str(),
+    VLOG("metric %lld created. bucket size %lld start_time: %lld", (long long)metric.id(),
          (long long)mBucketSizeNs, (long long)mStartTimeNs);
 }
 
@@ -87,12 +87,12 @@
 }
 
 void CountMetricProducer::onSlicedConditionMayChangeLocked(const uint64_t eventTime) {
-    VLOG("Metric %s onSlicedConditionMayChange", mName.c_str());
+    VLOG("Metric %lld onSlicedConditionMayChange", (long long)mMetricId);
 }
 
 void CountMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs, StatsLogReport* report) {
     flushIfNeededLocked(dumpTimeNs);
-    report->set_metric_name(mName);
+    report->set_metric_id(mMetricId);
     report->set_start_report_nanos(mStartTimeNs);
 
     auto count_metrics = report->mutable_count_metrics();
@@ -112,11 +112,11 @@
                                              ProtoOutputStream* protoOutput) {
     flushIfNeededLocked(dumpTimeNs);
 
-    protoOutput->write(FIELD_TYPE_STRING | FIELD_ID_NAME, mName);
+    protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_REPORT_NANOS, (long long)mStartTimeNs);
     long long protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_COUNT_METRICS);
 
-    VLOG("metric %s dump report now...", mName.c_str());
+    VLOG("metric %lld dump report now...",(long long)mMetricId);
 
     for (const auto& counter : mPastBuckets) {
         const HashableDimensionKey& hashableKey = counter.first;
@@ -158,7 +158,7 @@
 
 void CountMetricProducer::onConditionChangedLocked(const bool conditionMet,
                                                    const uint64_t eventTime) {
-    VLOG("Metric %s onConditionChanged", mName.c_str());
+    VLOG("Metric %lld onConditionChanged", (long long)mMetricId);
     mCondition = conditionMet;
 }
 
@@ -170,11 +170,11 @@
     // 1. Report the tuple count if the tuple count > soft limit
     if (mCurrentSlicedCounter->size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mCurrentSlicedCounter->size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName, newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mMetricId, newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("CountMetric %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("CountMetric %lld dropping data for dimension key %s",
+                (long long)mMetricId, newKey.c_str());
             return true;
         }
     }
@@ -215,7 +215,7 @@
                                          mCurrentSlicedCounter->find(eventKey)->second);
     }
 
-    VLOG("metric %s %s->%lld", mName.c_str(), eventKey.c_str(),
+    VLOG("metric %lld %s->%lld", (long long)mMetricId, eventKey.c_str(),
          (long long)(*mCurrentSlicedCounter)[eventKey]);
 }
 
@@ -234,8 +234,8 @@
         info.mCount = counter.second;
         auto& bucketList = mPastBuckets[counter.first];
         bucketList.push_back(info);
-        VLOG("metric %s, dump key value: %s -> %lld", mName.c_str(), counter.first.c_str(),
-             (long long)counter.second);
+        VLOG("metric %lld, dump key value: %s -> %lld",
+            (long long)mMetricId, counter.first.c_str(), (long long)counter.second);
     }
 
     for (auto& tracker : mAnomalyTrackers) {
@@ -247,7 +247,7 @@
     uint64_t numBucketsForward = (eventTimeNs - mCurrentBucketStartTimeNs) / mBucketSizeNs;
     mCurrentBucketStartTimeNs = mCurrentBucketStartTimeNs + numBucketsForward * mBucketSizeNs;
     mCurrentBucketNum += numBucketsForward;
-    VLOG("metric %s: new bucket start time: %lld", mName.c_str(),
+    VLOG("metric %lld: new bucket start time: %lld", (long long)mMetricId,
          (long long)mCurrentBucketStartTimeNs);
 }
 
diff --git a/cmds/statsd/src/metrics/DurationMetricProducer.cpp b/cmds/statsd/src/metrics/DurationMetricProducer.cpp
index 30b105c..0117b6d 100644
--- a/cmds/statsd/src/metrics/DurationMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/DurationMetricProducer.cpp
@@ -42,7 +42,7 @@
 namespace statsd {
 
 // for StatsLogReport
-const int FIELD_ID_NAME = 1;
+const int FIELD_ID_ID = 1;
 const int FIELD_ID_START_REPORT_NANOS = 2;
 const int FIELD_ID_END_REPORT_NANOS = 3;
 const int FIELD_ID_DURATION_METRICS = 6;
@@ -63,7 +63,7 @@
                                                const sp<ConditionWizard>& wizard,
                                                const FieldMatcher& internalDimensions,
                                                const uint64_t startTimeNs)
-    : MetricProducer(metric.name(), key, startTimeNs, conditionIndex, wizard),
+    : MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard),
       mAggregationType(metric.aggregation_type()),
       mStartIndex(startIndex),
       mStopIndex(stopIndex),
@@ -88,7 +88,7 @@
         mConditionSliced = true;
     }
 
-    VLOG("metric %s created. bucket size %lld start_time: %lld", metric.name().c_str(),
+    VLOG("metric %lld created. bucket size %lld start_time: %lld", (long long)metric.id(),
          (long long)mBucketSizeNs, (long long)mStartTimeNs);
 }
 
@@ -98,9 +98,9 @@
 
 sp<AnomalyTracker> DurationMetricProducer::addAnomalyTracker(const Alert &alert) {
     std::lock_guard<std::mutex> lock(mMutex);
-    if (alert.trigger_if_sum_gt() > alert.number_of_buckets() * mBucketSizeNs) {
-        ALOGW("invalid alert: threshold (%lld) > possible recordable value (%d x %lld)",
-              alert.trigger_if_sum_gt(), alert.number_of_buckets(),
+    if (alert.trigger_if_sum_gt() > alert.num_buckets() * mBucketSizeNs) {
+        ALOGW("invalid alert: threshold (%f) > possible recordable value (%d x %lld)",
+              alert.trigger_if_sum_gt(), alert.num_buckets(),
               (long long)mBucketSizeNs);
         return nullptr;
     }
@@ -116,17 +116,17 @@
     switch (mAggregationType) {
         case DurationMetric_AggregationType_SUM:
             return make_unique<OringDurationTracker>(
-                    mConfigKey, mName, eventKey, mWizard, mConditionTrackerIndex, mNested,
+                    mConfigKey, mMetricId, eventKey, mWizard, mConditionTrackerIndex, mNested,
                     mCurrentBucketStartTimeNs, mBucketSizeNs, mAnomalyTrackers);
         case DurationMetric_AggregationType_MAX_SPARSE:
             return make_unique<MaxDurationTracker>(
-                    mConfigKey, mName, eventKey, mWizard, mConditionTrackerIndex, mNested,
+                    mConfigKey, mMetricId, eventKey, mWizard, mConditionTrackerIndex, mNested,
                     mCurrentBucketStartTimeNs, mBucketSizeNs, mAnomalyTrackers);
     }
 }
 
 void DurationMetricProducer::onSlicedConditionMayChangeLocked(const uint64_t eventTime) {
-    VLOG("Metric %s onSlicedConditionMayChange", mName.c_str());
+    VLOG("Metric %lld onSlicedConditionMayChange", (long long)mMetricId);
     flushIfNeededLocked(eventTime);
     // Now for each of the on-going event, check if the condition has changed for them.
     for (auto& pair : mCurrentSlicedDuration) {
@@ -136,7 +136,7 @@
 
 void DurationMetricProducer::onConditionChangedLocked(const bool conditionMet,
                                                       const uint64_t eventTime) {
-    VLOG("Metric %s onConditionChanged", mName.c_str());
+    VLOG("Metric %lld onConditionChanged", (long long)mMetricId);
     mCondition = conditionMet;
     flushIfNeededLocked(eventTime);
     // TODO: need to populate the condition change time from the event which triggers the condition
@@ -148,7 +148,7 @@
 
 void DurationMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs, StatsLogReport* report) {
     flushIfNeededLocked(dumpTimeNs);
-    report->set_metric_name(mName);
+    report->set_metric_id(mMetricId);
     report->set_start_report_nanos(mStartTimeNs);
 
     auto duration_metrics = report->mutable_duration_metrics();
@@ -168,11 +168,11 @@
                                                 ProtoOutputStream* protoOutput) {
     flushIfNeededLocked(dumpTimeNs);
 
-    protoOutput->write(FIELD_TYPE_STRING | FIELD_ID_NAME, mName);
+    protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_REPORT_NANOS, (long long)mStartTimeNs);
     long long protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_DURATION_METRICS);
 
-    VLOG("metric %s dump report now...", mName.c_str());
+    VLOG("metric %lld dump report now...", (long long)mMetricId);
 
     for (const auto& pair : mPastBuckets) {
         const HashableDimensionKey& hashableKey = pair.first;
@@ -237,11 +237,11 @@
     // 1. Report the tuple count if the tuple count > soft limit
     if (mCurrentSlicedDuration.size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mCurrentSlicedDuration.size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName, newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mMetricId, newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("DurationMetric %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("DurationMetric %lld dropping data for dimension key %s",
+                (long long)mMetricId, newKey.c_str());
             return true;
         }
     }
diff --git a/cmds/statsd/src/metrics/EventMetricProducer.cpp b/cmds/statsd/src/metrics/EventMetricProducer.cpp
index c8138d3..821d8ea4 100644
--- a/cmds/statsd/src/metrics/EventMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/EventMetricProducer.cpp
@@ -41,7 +41,7 @@
 namespace statsd {
 
 // for StatsLogReport
-const int FIELD_ID_NAME = 1;
+const int FIELD_ID_ID = 1;
 const int FIELD_ID_START_REPORT_NANOS = 2;
 const int FIELD_ID_END_REPORT_NANOS = 3;
 const int FIELD_ID_EVENT_METRICS = 4;
@@ -55,7 +55,7 @@
                                          const int conditionIndex,
                                          const sp<ConditionWizard>& wizard,
                                          const uint64_t startTimeNs)
-    : MetricProducer(metric.name(), key, startTimeNs, conditionIndex, wizard) {
+    : MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard) {
     if (metric.links().size() > 0) {
         mConditionLinks.insert(mConditionLinks.begin(), metric.links().begin(),
                                metric.links().end());
@@ -64,7 +64,7 @@
 
     startNewProtoOutputStreamLocked();
 
-    VLOG("metric %s created. bucket size %lld start_time: %lld", metric.name().c_str(),
+    VLOG("metric %lld created. bucket size %lld start_time: %lld", (long long)metric.id(),
          (long long)mBucketSizeNs, (long long)mStartTimeNs);
 }
 
@@ -102,12 +102,13 @@
 
 void EventMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs,
                                              ProtoOutputStream* protoOutput) {
-    protoOutput->write(FIELD_TYPE_STRING | FIELD_ID_NAME, mName);
+    protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_REPORT_NANOS, (long long)mStartTimeNs);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_END_REPORT_NANOS, (long long)dumpTimeNs);
 
     size_t bufferSize = mProto->size();
-    VLOG("metric %s dump report now... proto size: %zu ", mName.c_str(), bufferSize);
+    VLOG("metric %lld dump report now... proto size: %zu ",
+        (long long)mMetricId, bufferSize);
     std::unique_ptr<std::vector<uint8_t>> buffer = serializeProtoLocked(*mProto);
 
     protoOutput->write(FIELD_TYPE_MESSAGE | FIELD_ID_EVENT_METRICS,
@@ -119,7 +120,7 @@
 
 void EventMetricProducer::onConditionChangedLocked(const bool conditionMet,
                                                    const uint64_t eventTime) {
-    VLOG("Metric %s onConditionChanged", mName.c_str());
+    VLOG("Metric %lld onConditionChanged", (long long)mMetricId);
     mCondition = conditionMet;
 }
 
diff --git a/cmds/statsd/src/metrics/GaugeMetricProducer.cpp b/cmds/statsd/src/metrics/GaugeMetricProducer.cpp
index 51fd9fc..eaf1de2 100644
--- a/cmds/statsd/src/metrics/GaugeMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/GaugeMetricProducer.cpp
@@ -44,7 +44,7 @@
 namespace statsd {
 
 // for StatsLogReport
-const int FIELD_ID_NAME = 1;
+const int FIELD_ID_ID = 1;
 const int FIELD_ID_START_REPORT_NANOS = 2;
 const int FIELD_ID_END_REPORT_NANOS = 3;
 const int FIELD_ID_GAUGE_METRICS = 8;
@@ -63,7 +63,7 @@
                                          const sp<ConditionWizard>& wizard, const int atomTagId,
                                          const int pullTagId, const uint64_t startTimeNs,
                                          shared_ptr<StatsPullerManager> statsPullerManager)
-    : MetricProducer(metric.name(), key, startTimeNs, conditionIndex, wizard),
+    : MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard),
       mStatsPullerManager(statsPullerManager),
       mPullTagId(pullTagId),
       mAtomTagId(atomTagId) {
@@ -92,7 +92,7 @@
                                               metric.bucket().bucket_size_millis());
     }
 
-    VLOG("metric %s created. bucket size %lld start_time: %lld", metric.name().c_str(),
+    VLOG("metric %lld created. bucket size %lld start_time: %lld", (long long)metric.id(),
          (long long)mBucketSizeNs, (long long)mStartTimeNs);
 }
 
@@ -118,11 +118,11 @@
 
 void GaugeMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs,
                                              ProtoOutputStream* protoOutput) {
-    VLOG("gauge metric %s dump report now...", mName.c_str());
+    VLOG("gauge metric %lld report now...", (long long)mMetricId);
 
     flushIfNeededLocked(dumpTimeNs);
 
-    protoOutput->write(FIELD_TYPE_STRING | FIELD_ID_NAME, mName);
+    protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_REPORT_NANOS, (long long)mStartTimeNs);
     long long protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_GAUGE_METRICS);
 
@@ -166,7 +166,7 @@
 
 void GaugeMetricProducer::onConditionChangedLocked(const bool conditionMet,
                                                    const uint64_t eventTime) {
-    VLOG("Metric %s onConditionChanged", mName.c_str());
+    VLOG("Metric %lld onConditionChanged", (long long)mMetricId);
     flushIfNeededLocked(eventTime);
     mCondition = conditionMet;
 
@@ -194,7 +194,7 @@
 }
 
 void GaugeMetricProducer::onSlicedConditionMayChangeLocked(const uint64_t eventTime) {
-    VLOG("Metric %s onSlicedConditionMayChange", mName.c_str());
+    VLOG("Metric %lld onSlicedConditionMayChange", (long long)mMetricId);
 }
 
 std::shared_ptr<FieldValueMap> GaugeMetricProducer::getGaugeFields(const LogEvent& event) {
@@ -223,11 +223,11 @@
     // 1. Report the tuple count if the tuple count > soft limit
     if (mCurrentSlicedBucket->size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mCurrentSlicedBucket->size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName, newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mMetricId, newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("GaugeMetric %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("GaugeMetric %lld dropping data for dimension key %s",
+                (long long)mMetricId, newKey.c_str());
             return true;
         }
     }
@@ -314,7 +314,8 @@
         info.mGaugeFields = slice.second;
         auto& bucketList = mPastBuckets[slice.first];
         bucketList.push_back(info);
-        VLOG("gauge metric %s, dump key value: %s", mName.c_str(), slice.first.c_str());
+        VLOG("gauge metric %lld, dump key value: %s",
+            (long long)mMetricId, slice.first.c_str());
     }
 
     // Reset counters
@@ -331,7 +332,7 @@
     int64_t numBucketsForward = (eventTimeNs - mCurrentBucketStartTimeNs) / mBucketSizeNs;
     mCurrentBucketStartTimeNs = mCurrentBucketStartTimeNs + numBucketsForward * mBucketSizeNs;
     mCurrentBucketNum += numBucketsForward;
-    VLOG("metric %s: new bucket start time: %lld", mName.c_str(),
+    VLOG("metric %lld: new bucket start time: %lld", (long long)mMetricId,
          (long long)mCurrentBucketStartTimeNs);
 }
 
diff --git a/cmds/statsd/src/metrics/MetricProducer.cpp b/cmds/statsd/src/metrics/MetricProducer.cpp
index 4ed8289..d620a7e 100644
--- a/cmds/statsd/src/metrics/MetricProducer.cpp
+++ b/cmds/statsd/src/metrics/MetricProducer.cpp
@@ -29,13 +29,13 @@
     }
 
     bool condition;
-    map<string, std::vector<HashableDimensionKey>> conditionKeys;
+    ConditionKey conditionKey;
     if (mConditionSliced) {
         for (const auto& link : mConditionLinks) {
-            conditionKeys.insert(std::make_pair(link.condition(),
-                                                getDimensionKeysForCondition(event, link)));
+            conditionKey.insert(std::make_pair(link.condition(),
+                                               getDimensionKeysForCondition(event, link)));
         }
-        if (mWizard->query(mConditionTrackerIndex, conditionKeys) != ConditionState::kTrue) {
+        if (mWizard->query(mConditionTrackerIndex, conditionKey) != ConditionState::kTrue) {
             condition = false;
         } else {
             condition = true;
@@ -48,11 +48,11 @@
         vector<DimensionsValue> dimensionValues = getDimensionKeys(event, mDimensions);
         for (const DimensionsValue& dimensionValue : dimensionValues) {
             onMatchedLogEventInternalLocked(
-                matcherIndex, HashableDimensionKey(dimensionValue), conditionKeys, condition, event);
+                matcherIndex, HashableDimensionKey(dimensionValue), conditionKey, condition, event);
         }
     } else {
         onMatchedLogEventInternalLocked(
-            matcherIndex, DEFAULT_DIMENSION_KEY, conditionKeys, condition, event);
+            matcherIndex, DEFAULT_DIMENSION_KEY, conditionKey, condition, event);
     }
 }
 
diff --git a/cmds/statsd/src/metrics/MetricProducer.h b/cmds/statsd/src/metrics/MetricProducer.h
index fe1a53b..3779c44 100644
--- a/cmds/statsd/src/metrics/MetricProducer.h
+++ b/cmds/statsd/src/metrics/MetricProducer.h
@@ -39,9 +39,9 @@
 // be a no-op.
 class MetricProducer : public virtual PackageInfoListener {
 public:
-    MetricProducer(const std::string& name, const ConfigKey& key, const int64_t startTimeNs,
+    MetricProducer(const int64_t& metricId, const ConfigKey& key, const int64_t startTimeNs,
                    const int conditionIndex, const sp<ConditionWizard>& wizard)
-        : mName(name),
+        : mMetricId(metricId),
           mConfigKey(key),
           mStartTimeNs(startTimeNs),
           mCurrentBucketStartTimeNs(startTimeNs),
@@ -117,8 +117,8 @@
         return mBucketSizeNs;
     }
 
-    inline const string& getName() {
-        return mName;
+    inline const int64_t& getMetricId() {
+        return mMetricId;
     }
 
 protected:
@@ -129,7 +129,7 @@
     virtual void onDumpReportLocked(const uint64_t dumpTimeNs, StatsLogReport* report) = 0;
     virtual size_t byteSizeLocked() const = 0;
 
-    const std::string mName;
+    const int64_t mMetricId;
 
     const ConfigKey mConfigKey;
 
diff --git a/cmds/statsd/src/metrics/MetricsManager.cpp b/cmds/statsd/src/metrics/MetricsManager.cpp
index 9749e0f..7f0239f 100644
--- a/cmds/statsd/src/metrics/MetricsManager.cpp
+++ b/cmds/statsd/src/metrics/MetricsManager.cpp
@@ -51,7 +51,7 @@
     mConfigValid =
             initStatsdConfig(key, config, *uidMap, timeBaseSec, mTagIds, mAllAtomMatchers, mAllConditionTrackers,
                              mAllMetricProducers, mAllAnomalyTrackers, mConditionToMetricMap,
-                             mTrackerToMetricMap, mTrackerToConditionMap);
+                             mTrackerToMetricMap, mTrackerToConditionMap, mNoReportMetricIds);
 
     if (!config.has_log_source()) {
         // TODO(b/70794411): uncomment the following line and remove the hard coded log source
@@ -143,8 +143,10 @@
 }
 
 void MetricsManager::onDumpReport(const uint64_t& dumpTimeStampNs, ConfigMetricsReport* report) {
-    for (auto& producer : mAllMetricProducers) {
-        producer->onDumpReport(dumpTimeStampNs, report->add_metrics());
+    for (const auto& producer : mAllMetricProducers) {
+        if (mNoReportMetricIds.find(producer->getMetricId()) == mNoReportMetricIds.end()) {
+            producer->onDumpReport(dumpTimeStampNs, report->add_metrics());
+        }
     }
 }
 
@@ -152,11 +154,13 @@
     VLOG("=========================Metric Reports Start==========================");
     uint64_t dumpTimeStampNs = time(nullptr) * NS_PER_SEC;
     // one StatsLogReport per MetricProduer
-    for (auto& metric : mAllMetricProducers) {
-        long long token =
-                protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_METRICS);
-        metric->onDumpReport(dumpTimeStampNs, protoOutput);
-        protoOutput->end(token);
+    for (const auto& producer : mAllMetricProducers) {
+        if (mNoReportMetricIds.find(producer->getMetricId()) == mNoReportMetricIds.end()) {
+            long long token =
+                    protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_COUNT_REPEATED | FIELD_ID_METRICS);
+            producer->onDumpReport(dumpTimeStampNs, protoOutput);
+            protoOutput->end(token);
+        }
     }
     VLOG("=========================Metric Reports End==========================");
 }
@@ -173,6 +177,22 @@
             VLOG("log source %d not on the whitelist", event.GetUid());
             return;
         }
+    } else { // Check that app hook fields are valid.
+        // TODO: Find a way to make these checks easier to maintain if the app hooks get changed.
+
+        // Label is 2nd from last field and must be from [0, 15].
+        status_t err = NO_ERROR;
+        long label = event.GetLong(event.size()-1, &err);
+        if (err != NO_ERROR || label < 0 || label > 15) {
+            VLOG("App hook does not have valid label %ld", label);
+            return;
+        }
+        // The state must be from 0,3. This part of code must be manually updated.
+        long apphookState = event.GetLong(event.size(), &err);
+        if (err != NO_ERROR || apphookState < 0 || apphookState > 3) {
+            VLOG("App hook does not have valid state %ld", apphookState);
+            return;
+        }
     }
 
     int tagId = event.GetTagId();
@@ -240,7 +260,7 @@
     for (size_t i = 0; i < mAllAtomMatchers.size(); i++) {
         if (matcherCache[i] == MatchingState::kMatched) {
             StatsdStats::getInstance().noteMatcherMatched(mConfigKey,
-                                                          mAllAtomMatchers[i]->getName());
+                                                          mAllAtomMatchers[i]->getId());
             auto pair = mTrackerToMetricMap.find(i);
             if (pair != mTrackerToMetricMap.end()) {
                 auto& metricList = pair->second;
diff --git a/cmds/statsd/src/metrics/MetricsManager.h b/cmds/statsd/src/metrics/MetricsManager.h
index 51c4c90..8175cd2 100644
--- a/cmds/statsd/src/metrics/MetricsManager.h
+++ b/cmds/statsd/src/metrics/MetricsManager.h
@@ -131,6 +131,9 @@
 
     void initLogSourceWhiteList();
 
+    // The metrics that don't need to be uploaded or even reported.
+    std::set<int64_t> mNoReportMetricIds;
+
     FRIEND_TEST(WakelockDurationE2eTest, TestAggregatedPredicateDimensions);
     FRIEND_TEST(MetricConditionLinkE2eTest, TestMultiplePredicatesAndLinks);
 };
diff --git a/cmds/statsd/src/metrics/ValueMetricProducer.cpp b/cmds/statsd/src/metrics/ValueMetricProducer.cpp
index b58dc68..5f7d761 100644
--- a/cmds/statsd/src/metrics/ValueMetricProducer.cpp
+++ b/cmds/statsd/src/metrics/ValueMetricProducer.cpp
@@ -17,6 +17,7 @@
 #define DEBUG false  // STOPSHIP if true
 #include "Log.h"
 
+#include "dimension.h"
 #include "ValueMetricProducer.h"
 #include "guardrail/StatsdStats.h"
 #include "stats_log_util.h"
@@ -46,7 +47,7 @@
 namespace statsd {
 
 // for StatsLogReport
-const int FIELD_ID_NAME = 1;
+const int FIELD_ID_ID = 1;
 const int FIELD_ID_START_REPORT_NANOS = 2;
 const int FIELD_ID_END_REPORT_NANOS = 3;
 const int FIELD_ID_VALUE_METRICS = 7;
@@ -68,7 +69,7 @@
                                          const sp<ConditionWizard>& wizard, const int pullTagId,
                                          const uint64_t startTimeNs,
                                          shared_ptr<StatsPullerManager> statsPullerManager)
-    : MetricProducer(metric.name(), key, startTimeNs, conditionIndex, wizard),
+    : MetricProducer(metric.id(), key, startTimeNs, conditionIndex, wizard),
       mValueField(metric.value_field()),
       mStatsPullerManager(statsPullerManager),
       mPullTagId(pullTagId) {
@@ -92,8 +93,8 @@
         mStatsPullerManager->RegisterReceiver(mPullTagId, this,
                                               metric.bucket().bucket_size_millis());
     }
-    VLOG("value metric %s created. bucket size %lld start_time: %lld", metric.name().c_str(),
-         (long long)mBucketSizeNs, (long long)mStartTimeNs);
+    VLOG("value metric %lld created. bucket size %lld start_time: %lld",
+        (long long)metric.id(), (long long)mBucketSizeNs, (long long)mStartTimeNs);
 }
 
 // for testing
@@ -113,12 +114,12 @@
 }
 
 void ValueMetricProducer::onSlicedConditionMayChangeLocked(const uint64_t eventTime) {
-    VLOG("Metric %s onSlicedConditionMayChange", mName.c_str());
+    VLOG("Metric %lld onSlicedConditionMayChange", (long long)mMetricId);
 }
 
 void ValueMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs, StatsLogReport* report) {
     flushIfNeededLocked(dumpTimeNs);
-    report->set_metric_name(mName);
+    report->set_metric_id(mMetricId);
     report->set_start_report_nanos(mStartTimeNs);
     auto value_metrics = report->mutable_value_metrics();
     for (const auto& pair : mPastBuckets) {
@@ -135,9 +136,9 @@
 
 void ValueMetricProducer::onDumpReportLocked(const uint64_t dumpTimeNs,
                                              ProtoOutputStream* protoOutput) {
-    VLOG("metric %s dump report now...", mName.c_str());
+    VLOG("metric %lld dump report now...", (long long)mMetricId);
     flushIfNeededLocked(dumpTimeNs);
-    protoOutput->write(FIELD_TYPE_STRING | FIELD_ID_NAME, mName);
+    protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_ID, (long long)mMetricId);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_START_REPORT_NANOS, (long long)mStartTimeNs);
     long long protoToken = protoOutput->start(FIELD_TYPE_MESSAGE | FIELD_ID_VALUE_METRICS);
 
@@ -171,7 +172,7 @@
     protoOutput->end(protoToken);
     protoOutput->write(FIELD_TYPE_INT64 | FIELD_ID_END_REPORT_NANOS, (long long)dumpTimeNs);
 
-    VLOG("metric %s dump report now...", mName.c_str());
+    VLOG("metric %lld dump report now...", (long long)mMetricId);
     mPastBuckets.clear();
     mStartTimeNs = mCurrentBucketStartTimeNs;
     // TODO: Clear mDimensionKeyMap once the report is dumped.
@@ -218,7 +219,8 @@
         // For scheduled pulled data, the effective event time is snap to the nearest
         // bucket boundary to make bucket finalize.
         uint64_t realEventTime = allData.at(0)->GetTimestampNs();
-        uint64_t eventTime = mStartTimeNs + ((realEventTime - mStartTimeNs)/mBucketSizeNs) * mBucketSizeNs;
+        uint64_t eventTime = mStartTimeNs +
+            ((realEventTime - mStartTimeNs)/mBucketSizeNs) * mBucketSizeNs;
 
         mCondition = false;
         for (const auto& data : allData) {
@@ -242,11 +244,11 @@
     }
     if (mCurrentSlicedBucket.size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mCurrentSlicedBucket.size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName, newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mMetricId, newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("ValueMetric %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("ValueMetric %lld dropping data for dimension key %s",
+                (long long)mMetricId, newKey.c_str());
             return true;
         }
     }
@@ -272,7 +274,11 @@
     }
     Interval& interval = mCurrentSlicedBucket[eventKey];
 
-    long value = get_value(event);
+    std::shared_ptr<FieldValueMap> valueFieldMap = getValueFields(event);
+    if (valueFieldMap->empty() || valueFieldMap->size() > 1) {
+        return;
+    }
+    const long value = getLongFromDimenValue(valueFieldMap->begin()->second);
 
     if (mPullTagId != -1) { // for pulled events
         if (mCondition == true) {
@@ -296,15 +302,11 @@
     }
 }
 
-long ValueMetricProducer::get_value(const LogEvent& event) {
-    status_t err = NO_ERROR;
-    long val = event.GetLong(mValueField, &err);
-    if (err == NO_ERROR) {
-        return val;
-    } else {
-        VLOG("Can't find value in message. %s", event.ToString().c_str());
-        return 0;
-    }
+std::shared_ptr<FieldValueMap> ValueMetricProducer::getValueFields(const LogEvent& event) {
+    std::shared_ptr<FieldValueMap> valueFields =
+        std::make_shared<FieldValueMap>(event.getFieldValueMap());
+    filterFields(mValueField, valueFields.get());
+    return valueFields;
 }
 
 void ValueMetricProducer::flushIfNeededLocked(const uint64_t& eventTimeNs) {
@@ -346,7 +348,7 @@
     if (numBucketsForward > 1) {
         VLOG("Skipping forward %lld buckets", (long long)numBucketsForward);
     }
-    VLOG("metric %s: new bucket start time: %lld", mName.c_str(),
+    VLOG("metric %lld: new bucket start time: %lld", (long long)mMetricId,
          (long long)mCurrentBucketStartTimeNs);
 }
 
diff --git a/cmds/statsd/src/metrics/ValueMetricProducer.h b/cmds/statsd/src/metrics/ValueMetricProducer.h
index 6f3b1d1..3e7032d 100644
--- a/cmds/statsd/src/metrics/ValueMetricProducer.h
+++ b/cmds/statsd/src/metrics/ValueMetricProducer.h
@@ -70,7 +70,7 @@
     // Util function to flush the old packet.
     void flushIfNeededLocked(const uint64_t& eventTime);
 
-    const int32_t mValueField;
+    const FieldMatcher mValueField;
 
     std::shared_ptr<StatsPullerManager> mStatsPullerManager;
 
@@ -103,7 +103,7 @@
     // TODO: Add a lock to mPastBuckets.
     std::unordered_map<HashableDimensionKey, std::vector<ValueBucket>> mPastBuckets;
 
-    long get_value(const LogEvent& event);
+    std::shared_ptr<FieldValueMap> getValueFields(const LogEvent& event);
 
     // Util function to check whether the specified dimension hits the guardrail.
     bool hitGuardRailLocked(const HashableDimensionKey& newKey);
diff --git a/cmds/statsd/src/metrics/duration_helper/DurationTracker.h b/cmds/statsd/src/metrics/duration_helper/DurationTracker.h
index 9192d12f..842581e 100644
--- a/cmds/statsd/src/metrics/duration_helper/DurationTracker.h
+++ b/cmds/statsd/src/metrics/duration_helper/DurationTracker.h
@@ -60,12 +60,12 @@
 
 class DurationTracker {
 public:
-    DurationTracker(const ConfigKey& key, const string& name, const HashableDimensionKey& eventKey,
+    DurationTracker(const ConfigKey& key, const int64_t& id, const HashableDimensionKey& eventKey,
                     sp<ConditionWizard> wizard, int conditionIndex, bool nesting,
                     uint64_t currentBucketStartNs, uint64_t bucketSizeNs,
                     const std::vector<sp<DurationAnomalyTracker>>& anomalyTrackers)
         : mConfigKey(key),
-          mName(name),
+          mTrackerId(id),
           mEventKey(eventKey),
           mWizard(wizard),
           mConditionTrackerIndex(conditionIndex),
@@ -145,7 +145,7 @@
     // A reference to the DurationMetricProducer's config key.
     const ConfigKey& mConfigKey;
 
-    const std::string mName;
+    const int64_t mTrackerId;
 
     HashableDimensionKey mEventKey;
 
diff --git a/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.cpp b/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.cpp
index d8a8e23..94f98ad 100644
--- a/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.cpp
+++ b/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.cpp
@@ -24,12 +24,12 @@
 namespace os {
 namespace statsd {
 
-MaxDurationTracker::MaxDurationTracker(const ConfigKey& key, const string& name,
+MaxDurationTracker::MaxDurationTracker(const ConfigKey& key, const int64_t& id,
                                        const HashableDimensionKey& eventKey,
                                        sp<ConditionWizard> wizard, int conditionIndex, bool nesting,
                                        uint64_t currentBucketStartNs, uint64_t bucketSizeNs,
                                        const vector<sp<DurationAnomalyTracker>>& anomalyTrackers)
-    : DurationTracker(key, name, eventKey, wizard, conditionIndex, nesting, currentBucketStartNs,
+    : DurationTracker(key, id, eventKey, wizard, conditionIndex, nesting, currentBucketStartNs,
                       bucketSizeNs, anomalyTrackers) {
 }
 
@@ -42,12 +42,13 @@
     // 1. Report the tuple count if the tuple count > soft limit
     if (mInfos.size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mInfos.size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName + mEventKey.toString(),
-                                                           newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(
+            mConfigKey, hashDimensionsValue(mTrackerId, mEventKey.getDimensionsValue()),
+            newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("MaxDurTracker %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("MaxDurTracker %lld dropping data for dimension key %s",
+                (long long)mTrackerId, newKey.c_str());
             return true;
         }
     }
diff --git a/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.h b/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.h
index 76f486e..68c48cb1 100644
--- a/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.h
+++ b/cmds/statsd/src/metrics/duration_helper/MaxDurationTracker.h
@@ -28,7 +28,7 @@
 // they stop or bucket expires.
 class MaxDurationTracker : public DurationTracker {
 public:
-    MaxDurationTracker(const ConfigKey& key, const string& name,
+    MaxDurationTracker(const ConfigKey& key, const int64_t& id,
                        const HashableDimensionKey& eventKey, sp<ConditionWizard> wizard,
                        int conditionIndex, bool nesting, uint64_t currentBucketStartNs,
                        uint64_t bucketSizeNs,
diff --git a/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.cpp b/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.cpp
index c347d5c..c77d0b7 100644
--- a/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.cpp
+++ b/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.cpp
@@ -25,11 +25,11 @@
 using std::pair;
 
 OringDurationTracker::OringDurationTracker(
-        const ConfigKey& key, const string& name, const HashableDimensionKey& eventKey,
+        const ConfigKey& key, const int64_t& id, const HashableDimensionKey& eventKey,
         sp<ConditionWizard> wizard, int conditionIndex, bool nesting, uint64_t currentBucketStartNs,
         uint64_t bucketSizeNs, const vector<sp<DurationAnomalyTracker>>& anomalyTrackers)
 
-    : DurationTracker(key, name, eventKey, wizard, conditionIndex, nesting, currentBucketStartNs,
+    : DurationTracker(key, id, eventKey, wizard, conditionIndex, nesting, currentBucketStartNs,
                       bucketSizeNs, anomalyTrackers),
       mStarted(),
       mPaused() {
@@ -44,12 +44,13 @@
     }
     if (mConditionKeyMap.size() > StatsdStats::kDimensionKeySizeSoftLimit - 1) {
         size_t newTupleCount = mConditionKeyMap.size() + 1;
-        StatsdStats::getInstance().noteMetricDimensionSize(mConfigKey, mName + mEventKey.toString(),
-                                                           newTupleCount);
+        StatsdStats::getInstance().noteMetricDimensionSize(
+            mConfigKey, hashDimensionsValue(mTrackerId, mEventKey.getDimensionsValue()),
+            newTupleCount);
         // 2. Don't add more tuples, we are above the allowed threshold. Drop the data.
         if (newTupleCount > StatsdStats::kDimensionKeySizeHardLimit) {
-            ALOGE("OringDurTracker %s dropping data for dimension key %s", mName.c_str(),
-                  newKey.c_str());
+            ALOGE("OringDurTracker %lld dropping data for dimension key %s",
+                (long long)mTrackerId, newKey.c_str());
             return true;
         }
     }
diff --git a/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.h b/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.h
index dcf04db..7fe649c 100644
--- a/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.h
+++ b/cmds/statsd/src/metrics/duration_helper/OringDurationTracker.h
@@ -27,7 +27,7 @@
 // Tracks the "Or'd" duration -- if 2 durations are overlapping, they won't be double counted.
 class OringDurationTracker : public DurationTracker {
 public:
-    OringDurationTracker(const ConfigKey& key, const string& name,
+    OringDurationTracker(const ConfigKey& key, const int64_t& id,
                          const HashableDimensionKey& eventKey, sp<ConditionWizard> wizard,
                          int conditionIndex, bool nesting, uint64_t currentBucketStartNs,
                          uint64_t bucketSizeNs,
diff --git a/cmds/statsd/src/metrics/metrics_manager_util.cpp b/cmds/statsd/src/metrics/metrics_manager_util.cpp
index 97dbf7a..89d54c7b 100644
--- a/cmds/statsd/src/metrics/metrics_manager_util.cpp
+++ b/cmds/statsd/src/metrics/metrics_manager_util.cpp
@@ -38,21 +38,21 @@
 namespace os {
 namespace statsd {
 
-bool handleMetricWithLogTrackers(const string what, const int metricIndex,
+bool handleMetricWithLogTrackers(const int64_t what, const int metricIndex,
                                  const bool usedForDimension,
                                  const vector<sp<LogMatchingTracker>>& allAtomMatchers,
-                                 const unordered_map<string, int>& logTrackerMap,
+                                 const unordered_map<int64_t, int>& logTrackerMap,
                                  unordered_map<int, std::vector<int>>& trackerToMetricMap,
                                  int& logTrackerIndex) {
     auto logTrackerIt = logTrackerMap.find(what);
     if (logTrackerIt == logTrackerMap.end()) {
-        ALOGW("cannot find the AtomMatcher \"%s\" in config", what.c_str());
+        ALOGW("cannot find the AtomMatcher \"%lld\" in config", (long long)what);
         return false;
     }
     if (usedForDimension && allAtomMatchers[logTrackerIt->second]->getAtomIds().size() > 1) {
-        ALOGE("AtomMatcher \"%s\" has more than one tag ids. When a metric has dimension, "
+        ALOGE("AtomMatcher \"%lld\" has more than one tag ids. When a metric has dimension, "
               "the \"what\" can only about one atom type.",
-              what.c_str());
+              (long long)what);
         return false;
     }
     logTrackerIndex = logTrackerIt->second;
@@ -62,22 +62,22 @@
 }
 
 bool handleMetricWithConditions(
-        const string condition, const int metricIndex,
-        const unordered_map<string, int>& conditionTrackerMap,
+        const int64_t condition, const int metricIndex,
+        const unordered_map<int64_t, int>& conditionTrackerMap,
         const ::google::protobuf::RepeatedPtrField<::android::os::statsd::MetricConditionLink>&
                 links,
         vector<sp<ConditionTracker>>& allConditionTrackers, int& conditionIndex,
         unordered_map<int, std::vector<int>>& conditionToMetricMap) {
     auto condition_it = conditionTrackerMap.find(condition);
     if (condition_it == conditionTrackerMap.end()) {
-        ALOGW("cannot find Predicate \"%s\" in the config", condition.c_str());
+        ALOGW("cannot find Predicate \"%lld\" in the config", (long long)condition);
         return false;
     }
 
     for (const auto& link : links) {
         auto it = conditionTrackerMap.find(link.condition());
         if (it == conditionTrackerMap.end()) {
-            ALOGW("cannot find Predicate \"%s\" in the config", link.condition().c_str());
+            ALOGW("cannot find Predicate \"%lld\" in the config", (long long)link.condition());
             return false;
         }
         allConditionTrackers[condition_it->second]->setSliced(true);
@@ -93,7 +93,7 @@
 }
 
 bool initLogTrackers(const StatsdConfig& config, const UidMap& uidMap,
-                     unordered_map<string, int>& logTrackerMap,
+                     unordered_map<int64_t, int>& logTrackerMap,
                      vector<sp<LogMatchingTracker>>& allAtomMatchers, set<int>& allTagIds) {
     vector<AtomMatcher> matcherConfigs;
     const int atomMatcherCount = config.atom_matcher_size();
@@ -107,22 +107,22 @@
         switch (logMatcher.contents_case()) {
             case AtomMatcher::ContentsCase::kSimpleAtomMatcher:
                 allAtomMatchers.push_back(new SimpleLogMatchingTracker(
-                        logMatcher.name(), index, logMatcher.simple_atom_matcher(), uidMap));
+                        logMatcher.id(), index, logMatcher.simple_atom_matcher(), uidMap));
                 break;
             case AtomMatcher::ContentsCase::kCombination:
                 allAtomMatchers.push_back(
-                        new CombinationLogMatchingTracker(logMatcher.name(), index));
+                        new CombinationLogMatchingTracker(logMatcher.id(), index));
                 break;
             default:
-                ALOGE("Matcher \"%s\" malformed", logMatcher.name().c_str());
+                ALOGE("Matcher \"%lld\" malformed", (long long)logMatcher.id());
                 return false;
                 // continue;
         }
-        if (logTrackerMap.find(logMatcher.name()) != logTrackerMap.end()) {
+        if (logTrackerMap.find(logMatcher.id()) != logTrackerMap.end()) {
             ALOGE("Duplicate AtomMatcher found!");
             return false;
         }
-        logTrackerMap[logMatcher.name()] = index;
+        logTrackerMap[logMatcher.id()] = index;
         matcherConfigs.push_back(logMatcher);
     }
 
@@ -139,8 +139,8 @@
 }
 
 bool initConditions(const ConfigKey& key, const StatsdConfig& config,
-                    const unordered_map<string, int>& logTrackerMap,
-                    unordered_map<string, int>& conditionTrackerMap,
+                    const unordered_map<int64_t, int>& logTrackerMap,
+                    unordered_map<int64_t, int>& conditionTrackerMap,
                     vector<sp<ConditionTracker>>& allConditionTrackers,
                     unordered_map<int, std::vector<int>>& trackerToConditionMap) {
     vector<Predicate> conditionConfigs;
@@ -154,23 +154,23 @@
         switch (condition.contents_case()) {
             case Predicate::ContentsCase::kSimplePredicate: {
                 allConditionTrackers.push_back(new SimpleConditionTracker(
-                        key, condition.name(), index, condition.simple_predicate(), logTrackerMap));
+                        key, condition.id(), index, condition.simple_predicate(), logTrackerMap));
                 break;
             }
             case Predicate::ContentsCase::kCombination: {
                 allConditionTrackers.push_back(
-                        new CombinationConditionTracker(condition.name(), index));
+                        new CombinationConditionTracker(condition.id(), index));
                 break;
             }
             default:
-                ALOGE("Predicate \"%s\" malformed", condition.name().c_str());
+                ALOGE("Predicate \"%lld\" malformed", (long long)condition.id());
                 return false;
         }
-        if (conditionTrackerMap.find(condition.name()) != conditionTrackerMap.end()) {
+        if (conditionTrackerMap.find(condition.id()) != conditionTrackerMap.end()) {
             ALOGE("Duplicate Predicate found!");
             return false;
         }
-        conditionTrackerMap[condition.name()] = index;
+        conditionTrackerMap[condition.id()] = index;
         conditionConfigs.push_back(condition);
     }
 
@@ -190,14 +190,15 @@
 }
 
 bool initMetrics(const ConfigKey& key, const StatsdConfig& config, const long timeBaseSec,
-                 const unordered_map<string, int>& logTrackerMap,
-                 const unordered_map<string, int>& conditionTrackerMap,
+                 const unordered_map<int64_t, int>& logTrackerMap,
+                 const unordered_map<int64_t, int>& conditionTrackerMap,
                  const vector<sp<LogMatchingTracker>>& allAtomMatchers,
                  vector<sp<ConditionTracker>>& allConditionTrackers,
                  vector<sp<MetricProducer>>& allMetricProducers,
                  unordered_map<int, std::vector<int>>& conditionToMetricMap,
                  unordered_map<int, std::vector<int>>& trackerToMetricMap,
-                 unordered_map<string, int>& metricMap) {
+                 unordered_map<int64_t, int>& metricMap,
+                 std::set<int64_t> &noReportMetricIds) {
     sp<ConditionWizard> wizard = new ConditionWizard(allConditionTrackers);
     const int allMetricsCount = config.count_metric_size() + config.duration_metric_size() +
                                 config.event_metric_size() + config.value_metric_size();
@@ -219,12 +220,12 @@
     for (int i = 0; i < config.count_metric_size(); i++) {
         const CountMetric& metric = config.count_metric(i);
         if (!metric.has_what()) {
-            ALOGW("cannot find \"what\" in CountMetric \"%s\"", metric.name().c_str());
+            ALOGW("cannot find \"what\" in CountMetric \"%lld\"", (long long)metric.id());
             return false;
         }
 
         int metricIndex = allMetricProducers.size();
-        metricMap.insert({metric.name(), metricIndex});
+        metricMap.insert({metric.id(), metricIndex});
         int trackerIndex;
         if (!handleMetricWithLogTrackers(metric.what(), metricIndex, metric.has_dimensions(),
                                          allAtomMatchers, logTrackerMap, trackerToMetricMap,
@@ -256,7 +257,7 @@
     for (int i = 0; i < config.duration_metric_size(); i++) {
         int metricIndex = allMetricProducers.size();
         const DurationMetric& metric = config.duration_metric(i);
-        metricMap.insert({metric.name(), metricIndex});
+        metricMap.insert({metric.id(), metricIndex});
 
         auto what_it = conditionTrackerMap.find(metric.what());
         if (what_it == conditionTrackerMap.end()) {
@@ -327,8 +328,8 @@
     for (int i = 0; i < config.event_metric_size(); i++) {
         int metricIndex = allMetricProducers.size();
         const EventMetric& metric = config.event_metric(i);
-        metricMap.insert({metric.name(), metricIndex});
-        if (!metric.has_name() || !metric.has_what()) {
+        metricMap.insert({metric.id(), metricIndex});
+        if (!metric.has_id() || !metric.has_what()) {
             ALOGW("cannot find the metric name or what in config");
             return false;
         }
@@ -363,12 +364,12 @@
     for (int i = 0; i < config.value_metric_size(); i++) {
         const ValueMetric& metric = config.value_metric(i);
         if (!metric.has_what()) {
-            ALOGW("cannot find \"what\" in ValueMetric \"%s\"", metric.name().c_str());
+            ALOGW("cannot find \"what\" in ValueMetric \"%lld\"", (long long)metric.id());
             return false;
         }
 
         int metricIndex = allMetricProducers.size();
-        metricMap.insert({metric.name(), metricIndex});
+        metricMap.insert({metric.id(), metricIndex});
         int trackerIndex;
         if (!handleMetricWithLogTrackers(metric.what(), metricIndex, metric.has_dimensions(),
                                          allAtomMatchers, logTrackerMap, trackerToMetricMap,
@@ -408,25 +409,25 @@
     for (int i = 0; i < config.gauge_metric_size(); i++) {
         const GaugeMetric& metric = config.gauge_metric(i);
         if (!metric.has_what()) {
-            ALOGW("cannot find \"what\" in GaugeMetric \"%s\"", metric.name().c_str());
+            ALOGW("cannot find \"what\" in GaugeMetric \"%lld\"", (long long)metric.id());
             return false;
         }
 
         if ((!metric.gauge_fields_filter().has_include_all() ||
              (metric.gauge_fields_filter().include_all() == false)) &&
             !hasLeafNode(metric.gauge_fields_filter().fields())) {
-            ALOGW("Incorrect field filter setting in GaugeMetric %s", metric.name().c_str());
+            ALOGW("Incorrect field filter setting in GaugeMetric %lld", (long long)metric.id());
             return false;
         }
         if ((metric.gauge_fields_filter().has_include_all() &&
              metric.gauge_fields_filter().include_all() == true) &&
             hasLeafNode(metric.gauge_fields_filter().fields())) {
-            ALOGW("Incorrect field filter setting in GaugeMetric %s", metric.name().c_str());
+            ALOGW("Incorrect field filter setting in GaugeMetric %lld", (long long)metric.id());
             return false;
         }
 
         int metricIndex = allMetricProducers.size();
-        metricMap.insert({metric.name(), metricIndex});
+        metricMap.insert({metric.id(), metricIndex});
         int trackerIndex;
         if (!handleMetricWithLogTrackers(metric.what(), metricIndex, metric.has_dimensions(),
                                          allAtomMatchers, logTrackerMap, trackerToMetricMap,
@@ -461,49 +462,77 @@
                 key, metric, conditionIndex, wizard, pullTagId, atomTagId, startTimeNs);
         allMetricProducers.push_back(gaugeProducer);
     }
+    for (int i = 0; i < config.no_report_metric_size(); ++i) {
+        const auto no_report_metric = config.no_report_metric(i);
+        if (metricMap.find(no_report_metric) == metricMap.end()) {
+            ALOGW("no_report_metric %lld not exist", no_report_metric);
+            return false;
+        }
+        noReportMetricIds.insert(no_report_metric);
+    }
     return true;
 }
 
 bool initAlerts(const StatsdConfig& config,
-                const unordered_map<string, int>& metricProducerMap,
+                const unordered_map<int64_t, int>& metricProducerMap,
                 vector<sp<MetricProducer>>& allMetricProducers,
                 vector<sp<AnomalyTracker>>& allAnomalyTrackers) {
+    unordered_map<int64_t, int> anomalyTrackerMap;
     for (int i = 0; i < config.alert_size(); i++) {
         const Alert& alert = config.alert(i);
-        const auto& itr = metricProducerMap.find(alert.metric_name());
+        const auto& itr = metricProducerMap.find(alert.metric_id());
         if (itr == metricProducerMap.end()) {
-            ALOGW("alert \"%s\" has unknown metric name: \"%s\"", alert.name().c_str(),
-                  alert.metric_name().c_str());
+            ALOGW("alert \"%lld\" has unknown metric id: \"%lld\"", (long long)alert.id(),
+                  (long long)alert.metric_id());
             return false;
         }
-        if (alert.trigger_if_sum_gt() < 0 || alert.number_of_buckets() <= 0) {
-            ALOGW("invalid alert: threshold=%lld num_buckets= %d",
-                  alert.trigger_if_sum_gt(), alert.number_of_buckets());
+        if (alert.trigger_if_sum_gt() < 0 || alert.num_buckets() <= 0) {
+            ALOGW("invalid alert: threshold=%f num_buckets= %d",
+                  alert.trigger_if_sum_gt(), alert.num_buckets());
             return false;
         }
         const int metricIndex = itr->second;
         sp<MetricProducer> metric = allMetricProducers[metricIndex];
         sp<AnomalyTracker> anomalyTracker = metric->addAnomalyTracker(alert);
         if (anomalyTracker != nullptr) {
+            anomalyTrackerMap.insert(std::make_pair(alert.id(), allAnomalyTrackers.size()));
             allAnomalyTrackers.push_back(anomalyTracker);
         }
     }
+    for (int i = 0; i < config.subscription_size(); ++i) {
+        const Subscription& subscription = config.subscription(i);
+        if (subscription.subscriber_information_case() ==
+            Subscription::SubscriberInformationCase::SUBSCRIBER_INFORMATION_NOT_SET) {
+            ALOGW("subscription \"%lld\" has no subscriber info.\"",
+                (long long)subscription.id());
+            return false;
+        }
+        const auto& itr = anomalyTrackerMap.find(subscription.rule_id());
+        if (itr == anomalyTrackerMap.end()) {
+            ALOGW("subscription \"%lld\" has unknown rule id: \"%lld\"",
+                (long long)subscription.id(), (long long)subscription.rule_id());
+            return false;
+        }
+        const int anomalyTrackerIndex = itr->second;
+        allAnomalyTrackers[anomalyTrackerIndex]->addSubscription(subscription);
+    }
     return true;
 }
 
 bool initStatsdConfig(const ConfigKey& key, const StatsdConfig& config,
-                const UidMap& uidMap,
-                        const long timeBaseSec, set<int>& allTagIds,
+                      const UidMap& uidMap,
+                      const long timeBaseSec, set<int>& allTagIds,
                       vector<sp<LogMatchingTracker>>& allAtomMatchers,
                       vector<sp<ConditionTracker>>& allConditionTrackers,
                       vector<sp<MetricProducer>>& allMetricProducers,
                       vector<sp<AnomalyTracker>>& allAnomalyTrackers,
                       unordered_map<int, std::vector<int>>& conditionToMetricMap,
                       unordered_map<int, std::vector<int>>& trackerToMetricMap,
-                      unordered_map<int, std::vector<int>>& trackerToConditionMap) {
-    unordered_map<string, int> logTrackerMap;
-    unordered_map<string, int> conditionTrackerMap;
-    unordered_map<string, int> metricProducerMap;
+                      unordered_map<int, std::vector<int>>& trackerToConditionMap,
+                      std::set<int64_t> &noReportMetricIds) {
+    unordered_map<int64_t, int> logTrackerMap;
+    unordered_map<int64_t, int> conditionTrackerMap;
+    unordered_map<int64_t, int> metricProducerMap;
 
     if (!initLogTrackers(config, uidMap, logTrackerMap, allAtomMatchers, allTagIds)) {
         ALOGE("initLogMatchingTrackers failed");
@@ -519,7 +548,7 @@
 
     if (!initMetrics(key, config, timeBaseSec, logTrackerMap, conditionTrackerMap, allAtomMatchers,
                      allConditionTrackers, allMetricProducers, conditionToMetricMap,
-                     trackerToMetricMap, metricProducerMap)) {
+                     trackerToMetricMap, metricProducerMap, noReportMetricIds)) {
         ALOGE("initMetricProducers failed");
         return false;
     }
diff --git a/cmds/statsd/src/metrics/metrics_manager_util.h b/cmds/statsd/src/metrics/metrics_manager_util.h
index 9ad5176..4f19ada 100644
--- a/cmds/statsd/src/metrics/metrics_manager_util.h
+++ b/cmds/statsd/src/metrics/metrics_manager_util.h
@@ -43,8 +43,8 @@
 // [allAtomMatchers]: should store the sp to all the LogMatchingTracker
 // [allTagIds]: contains the set of all interesting tag ids to this config.
 bool initLogTrackers(const StatsdConfig& config,
-                const UidMap& uidMap,
-                     std::unordered_map<std::string, int>& logTrackerMap,
+                     const UidMap& uidMap,
+                     std::unordered_map<int64_t, int>& logTrackerMap,
                      std::vector<sp<LogMatchingTracker>>& allAtomMatchers,
                      std::set<int>& allTagIds);
 
@@ -59,8 +59,8 @@
 // [trackerToConditionMap]: contain the mapping from index of
 //                        log tracker to condition trackers that use the log tracker
 bool initConditions(const ConfigKey& key, const StatsdConfig& config,
-                    const std::unordered_map<std::string, int>& logTrackerMap,
-                    std::unordered_map<std::string, int>& conditionTrackerMap,
+                    const std::unordered_map<int64_t, int>& logTrackerMap,
+                    std::unordered_map<int64_t, int>& conditionTrackerMap,
                     std::vector<sp<ConditionTracker>>& allConditionTrackers,
                     std::unordered_map<int, std::vector<int>>& trackerToConditionMap,
                     std::unordered_map<int, std::vector<MetricConditionLink>>& eventConditionLinks);
@@ -79,28 +79,29 @@
 // [trackerToMetricMap]: contains the mapping from log tracker to MetricProducer index.
 bool initMetrics(
         const ConfigKey& key, const StatsdConfig& config, const long timeBaseSec,
-        const std::unordered_map<std::string, int>& logTrackerMap,
-        const std::unordered_map<std::string, int>& conditionTrackerMap,
+        const std::unordered_map<int64_t, int>& logTrackerMap,
+        const std::unordered_map<int64_t, int>& conditionTrackerMap,
         const std::unordered_map<int, std::vector<MetricConditionLink>>& eventConditionLinks,
         const vector<sp<LogMatchingTracker>>& allAtomMatchers,
         vector<sp<ConditionTracker>>& allConditionTrackers,
         std::vector<sp<MetricProducer>>& allMetricProducers,
         std::unordered_map<int, std::vector<int>>& conditionToMetricMap,
-        std::unordered_map<int, std::vector<int>>& trackerToMetricMap);
+        std::unordered_map<int, std::vector<int>>& trackerToMetricMap,
+        std::set<int64_t> &noReportMetricIds);
 
 // Initialize MetricsManager from StatsdConfig.
 // Parameters are the members of MetricsManager. See MetricsManager for declaration.
 bool initStatsdConfig(const ConfigKey& key, const StatsdConfig& config,
-
-                const UidMap& uidMap,
-                const long timeBaseSec, std::set<int>& allTagIds,
+                      const UidMap& uidMap,
+                      const long timeBaseSec, std::set<int>& allTagIds,
                       std::vector<sp<LogMatchingTracker>>& allAtomMatchers,
                       std::vector<sp<ConditionTracker>>& allConditionTrackers,
                       std::vector<sp<MetricProducer>>& allMetricProducers,
                       vector<sp<AnomalyTracker>>& allAnomalyTrackers,
                       std::unordered_map<int, std::vector<int>>& conditionToMetricMap,
                       std::unordered_map<int, std::vector<int>>& trackerToMetricMap,
-                      std::unordered_map<int, std::vector<int>>& trackerToConditionMap);
+                      std::unordered_map<int, std::vector<int>>& trackerToConditionMap,
+                      std::set<int64_t> &noReportMetricIds);
 
 }  // namespace statsd
 }  // namespace os
diff --git a/cmds/statsd/src/stats_log.proto b/cmds/statsd/src/stats_log.proto
index f5282ea..0b369bb 100644
--- a/cmds/statsd/src/stats_log.proto
+++ b/cmds/statsd/src/stats_log.proto
@@ -137,7 +137,7 @@
 }
 
 message StatsLogReport {
-  optional string metric_name = 1;
+  optional int64 metric_id = 1;
 
   optional int64 start_report_nanos = 2;
 
@@ -178,7 +178,7 @@
 message ConfigMetricsReportList {
   message ConfigKey {
     optional int32 uid = 1;
-    optional string name = 2;
+    optional int64 id = 2;
   }
   optional ConfigKey config_key = 1;
 
@@ -191,28 +191,28 @@
     optional int32 stats_end_time_sec = 2;
 
     message MatcherStats {
-        optional string name = 1;
+        optional int64 id = 1;
         optional int32 matched_times = 2;
     }
 
     message ConditionStats {
-        optional string name = 1;
+        optional int64 id = 1;
         optional int32 max_tuple_counts = 2;
     }
 
     message MetricStats {
-        optional string name = 1;
+        optional int64 id = 1;
         optional int32 max_tuple_counts = 2;
     }
 
     message AlertStats {
-        optional string name = 1;
+        optional int64 id = 1;
         optional int32 alerted_times = 2;
     }
 
     message ConfigStats {
         optional int32 uid = 1;
-        optional string name = 2;
+        optional int64 id = 2;
         optional int32 creation_time_sec = 3;
         optional int32 deletion_time_sec = 4;
         optional int32 metric_count = 5;
diff --git a/cmds/statsd/src/stats_util.h b/cmds/statsd/src/stats_util.h
index e46b8eb..160b1f4 100644
--- a/cmds/statsd/src/stats_util.h
+++ b/cmds/statsd/src/stats_util.h
@@ -32,7 +32,7 @@
 // Minimum bucket size in seconds
 const long kMinBucketSizeSec = 5 * 60;
 
-typedef std::map<std::string, std::vector<HashableDimensionKey>> ConditionKey;
+typedef std::map<int64_t, std::vector<HashableDimensionKey>> ConditionKey;
 
 typedef std::unordered_map<HashableDimensionKey, int64_t> DimToValMap;
 
diff --git a/cmds/statsd/src/statsd_config.proto b/cmds/statsd/src/statsd_config.proto
index 1ed1e05..a5057da 100644
--- a/cmds/statsd/src/statsd_config.proto
+++ b/cmds/statsd/src/statsd_config.proto
@@ -84,12 +84,12 @@
 }
 
 message AtomMatcher {
-    optional string name = 1;
+    optional int64 id = 1;
 
     message Combination {
         optional LogicalOperation operation = 1;
 
-        repeated string matcher = 2;
+        repeated int64 matcher = 2;
     }
     oneof contents {
         SimpleAtomMatcher simple_atom_matcher = 2;
@@ -98,13 +98,13 @@
 }
 
 message SimplePredicate {
-    optional string start = 1;
+    optional int64 start = 1;
 
-    optional string stop = 2;
+    optional int64 stop = 2;
 
     optional bool count_nesting = 3 [default = true];
 
-    optional string stop_all = 4;
+    optional int64 stop_all = 4;
 
     enum InitialValue {
         UNKNOWN = 0;
@@ -116,12 +116,12 @@
 }
 
 message Predicate {
-    optional string name = 1;
+    optional int64 id = 1;
 
     message Combination {
         optional LogicalOperation operation = 1;
 
-        repeated string predicate = 2;
+        repeated int64 predicate = 2;
     }
 
     oneof contents {
@@ -135,7 +135,7 @@
 }
 
 message MetricConditionLink {
-    optional string condition = 1;
+    optional int64 condition = 1;
 
     optional FieldMatcher dimensions_in_what = 2;
 
@@ -148,21 +148,21 @@
 }
 
 message EventMetric {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string what = 2;
+    optional int64 what = 2;
 
-    optional string condition = 3;
+    optional int64 condition = 3;
 
     repeated MetricConditionLink links = 4;
 }
 
 message CountMetric {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string what = 2;
+    optional int64 what = 2;
 
-    optional string condition = 3;
+    optional int64 condition = 3;
 
     optional FieldMatcher dimensions = 4;
 
@@ -172,11 +172,11 @@
 }
 
 message DurationMetric {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string what = 2;
+    optional int64 what = 2;
 
-    optional string condition = 3;
+    optional int64 condition = 3;
 
     repeated MetricConditionLink links = 4;
 
@@ -193,13 +193,13 @@
 }
 
 message GaugeMetric {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string what = 2;
+    optional int64 what = 2;
 
     optional FieldFilter gauge_fields_filter = 3;
 
-    optional string condition = 4;
+    optional int64 condition = 4;
 
     optional FieldMatcher dimensions = 5;
 
@@ -209,13 +209,13 @@
 }
 
 message ValueMetric {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string what = 2;
+    optional int64 what = 2;
 
-    optional int32 value_field = 3;
+    optional FieldMatcher value_field = 3;
 
-    optional string condition = 4;
+    optional int64 condition = 4;
 
     optional FieldMatcher dimensions = 5;
 
@@ -228,20 +228,15 @@
 }
 
 message Alert {
-    optional string name = 1;
+    optional int64 id = 1;
 
-    optional string metric_name = 2;
+    optional int64 metric_id = 2;
 
-    message IncidentdDetails {
-        repeated int32 section = 1;
-    }
-    optional IncidentdDetails incidentd_details = 3;
+    optional int32 num_buckets = 3;
 
-    optional int32 number_of_buckets = 4;
+    optional int32 refractory_period_secs = 4;
 
-    optional int32 refractory_period_secs = 5;
-
-    optional int64 trigger_if_sum_gt = 6;
+    optional double trigger_if_sum_gt = 5;
 }
 
 message AllowedLogSource {
@@ -249,8 +244,40 @@
     repeated string package = 2;
 }
 
+message Alarm {
+    optional int64 id = 1;
+    optional int64 offset_millis = 2;
+    optional int64 period_millis = 3;
+}
+
+message IncidentdDetails {
+    repeated int32 section = 1;
+}
+
+message PerfettoDetails {
+    optional int32 perfetto_stuff = 1;
+}
+
+message Subscription {
+    optional int64 id = 1;
+
+    enum RuleType {
+        RULE_TYPE_UNSPECIFIED = 0;
+        ALARM = 1;
+        ALERT = 2;
+    }
+    optional RuleType rule_type = 2;
+
+    optional int64 rule_id = 3;
+
+    oneof subscriber_information {
+        IncidentdDetails incidentd_details = 4;
+        PerfettoDetails perfetto_details = 5;
+    }
+}
+
 message StatsdConfig {
-    optional string name = 1;
+    optional int64 id = 1;
 
     repeated EventMetric event_metric = 2;
 
@@ -268,5 +295,11 @@
 
     repeated Alert alert = 9;
 
-    optional AllowedLogSource log_source = 10;
+    repeated Alarm alarm = 10;
+
+    repeated Subscription subscription = 11;
+
+    optional AllowedLogSource log_source = 12;
+
+    repeated int64 no_report_metric = 13;
 }
diff --git a/cmds/statsd/src/storage/StorageManager.cpp b/cmds/statsd/src/storage/StorageManager.cpp
index 9919abf..c542db2 100644
--- a/cmds/statsd/src/storage/StorageManager.cpp
+++ b/cmds/statsd/src/storage/StorageManager.cpp
@@ -124,7 +124,7 @@
         }
         if (index < 2) continue;
 
-        sendBroadcast(ConfigKey(uid, configName));
+        sendBroadcast(ConfigKey(uid, StrToInt64(configName)));
     }
 }
 
@@ -198,6 +198,7 @@
             index++;
         }
         if (index < 2) continue;
+
         string file_name = StringPrintf("%s/%s", STATS_SERVICE_DIR, name);
         VLOG("full file %s", file_name.c_str());
         int fd = open(file_name.c_str(), O_RDONLY | O_CLOEXEC);
@@ -206,7 +207,7 @@
             if (android::base::ReadFdToString(fd, &content)) {
                 StatsdConfig config;
                 if (config.ParseFromString(content)) {
-                    configsMap[ConfigKey(uid, configName)] = config;
+                    configsMap[ConfigKey(uid, StrToInt64(configName))] = config;
                     VLOG("map key uid=%d|name=%s", uid, name);
                 }
             }
diff --git a/cmds/statsd/tests/ConfigManager_test.cpp b/cmds/statsd/tests/ConfigManager_test.cpp
index 3d923e2..3eac5d2 100644
--- a/cmds/statsd/tests/ConfigManager_test.cpp
+++ b/cmds/statsd/tests/ConfigManager_test.cpp
@@ -14,6 +14,7 @@
 
 #include "src/config/ConfigManager.h"
 #include "src/metrics/MetricsManager.h"
+#include "statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -31,7 +32,7 @@
 namespace statsd {
 
 static ostream& operator<<(ostream& os, const StatsdConfig& config) {
-    return os << "StatsdConfig{name=" << config.name().c_str() << "}";
+    return os << "StatsdConfig{id=" << config.id() << "}";
 }
 
 }  // namespace statsd
@@ -50,19 +51,21 @@
 /**
  * Validate that the ConfigKey is the one we wanted.
  */
-MATCHER_P2(ConfigKeyEq, uid, name, "") {
-    return arg.GetUid() == uid && arg.GetName() == name;
+MATCHER_P2(ConfigKeyEq, uid, id, "") {
+    return arg.GetUid() == uid && (long long)arg.GetId() == (long long)id;
 }
 
 /**
  * Validate that the StatsdConfig is the one we wanted.
  */
-MATCHER_P(StatsdConfigEq, name, "") {
-    return arg.name() == name;
+MATCHER_P(StatsdConfigEq, id, 0) {
+    return (long long)arg.id() == (long long)id;
 }
 
+const int64_t testConfigId = 12345;
+
 TEST(ConfigManagerTest, TestFakeConfig) {
-    auto metricsManager = std::make_unique<MetricsManager>(ConfigKey(0, "test"),
+    auto metricsManager = std::make_unique<MetricsManager>(ConfigKey(0, testConfigId),
                                                            build_fake_config(), 1000, new UidMap());
     EXPECT_TRUE(metricsManager->isConfigValid());
 }
@@ -77,13 +80,13 @@
     manager->AddListener(listener);
 
     StatsdConfig config91;
-    config91.set_name("91");
+    config91.set_id(91);
     StatsdConfig config92;
-    config92.set_name("92");
+    config92.set_id(92);
     StatsdConfig config93;
-    config93.set_name("93");
+    config93.set_id(93);
     StatsdConfig config94;
-    config94.set_name("94");
+    config94.set_id(94);
 
     {
         InSequence s;
@@ -91,42 +94,46 @@
         manager->Startup();
 
         // Add another one
-        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, "zzz"), StatsdConfigEq("91")))
+        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, StringToId("zzz")),
+            StatsdConfigEq(91)))
                 .RetiresOnSaturation();
-        manager->UpdateConfig(ConfigKey(1, "zzz"), config91);
+        manager->UpdateConfig(ConfigKey(1, StringToId("zzz")), config91);
 
         // Update It
-        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, "zzz"), StatsdConfigEq("92")))
+        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, StringToId("zzz")),
+            StatsdConfigEq(92)))
                 .RetiresOnSaturation();
-        manager->UpdateConfig(ConfigKey(1, "zzz"), config92);
+        manager->UpdateConfig(ConfigKey(1, StringToId("zzz")), config92);
 
         // Add one with the same uid but a different name
-        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, "yyy"), StatsdConfigEq("93")))
+        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(1, StringToId("yyy")),
+            StatsdConfigEq(93)))
                 .RetiresOnSaturation();
-        manager->UpdateConfig(ConfigKey(1, "yyy"), config93);
+        manager->UpdateConfig(ConfigKey(1, StringToId("yyy")), config93);
 
         // Add one with the same name but a different uid
-        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(2, "zzz"), StatsdConfigEq("94")))
+        EXPECT_CALL(*(listener.get()), OnConfigUpdated(ConfigKeyEq(2, StringToId("zzz")),
+            StatsdConfigEq(94)))
                 .RetiresOnSaturation();
-        manager->UpdateConfig(ConfigKey(2, "zzz"), config94);
+        manager->UpdateConfig(ConfigKey(2, StringToId("zzz")), config94);
 
         // Remove (1,yyy)
-        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(1, "yyy")))
+        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(1, StringToId("yyy"))))
                 .RetiresOnSaturation();
-        manager->RemoveConfig(ConfigKey(1, "yyy"));
+        manager->RemoveConfig(ConfigKey(1, StringToId("yyy")));
 
         // Remove (2,zzz)
-        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, "zzz")))
+        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, StringToId("zzz"))))
                 .RetiresOnSaturation();
-        manager->RemoveConfig(ConfigKey(2, "zzz"));
+        manager->RemoveConfig(ConfigKey(2, StringToId("zzz")));
 
         // Remove (1,zzz)
-        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(1, "zzz")))
+        EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(1, StringToId("zzz"))))
                 .RetiresOnSaturation();
-        manager->RemoveConfig(ConfigKey(1, "zzz"));
+        manager->RemoveConfig(ConfigKey(1, StringToId("zzz")));
 
         // Remove (2,zzz) again and we shouldn't get the callback
-        manager->RemoveConfig(ConfigKey(2, "zzz"));
+        manager->RemoveConfig(ConfigKey(2, StringToId("zzz")));
     }
 }
 
@@ -142,16 +149,16 @@
     StatsdConfig config;
 
     EXPECT_CALL(*(listener.get()), OnConfigUpdated(_, _)).Times(5);
-    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, "xxx")));
-    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, "yyy")));
-    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, "zzz")));
+    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, StringToId("xxx"))));
+    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, StringToId("yyy"))));
+    EXPECT_CALL(*(listener.get()), OnConfigRemoved(ConfigKeyEq(2, StringToId("zzz"))));
 
     manager->Startup();
-    manager->UpdateConfig(ConfigKey(1, "aaa"), config);
-    manager->UpdateConfig(ConfigKey(2, "xxx"), config);
-    manager->UpdateConfig(ConfigKey(2, "yyy"), config);
-    manager->UpdateConfig(ConfigKey(2, "zzz"), config);
-    manager->UpdateConfig(ConfigKey(3, "bbb"), config);
+    manager->UpdateConfig(ConfigKey(1, StringToId("aaa")), config);
+    manager->UpdateConfig(ConfigKey(2, StringToId("xxx")), config);
+    manager->UpdateConfig(ConfigKey(2, StringToId("yyy")), config);
+    manager->UpdateConfig(ConfigKey(2, StringToId("zzz")), config);
+    manager->UpdateConfig(ConfigKey(3, StringToId("bbb")), config);
 
     manager->RemoveConfigs(2);
 }
diff --git a/cmds/statsd/tests/MetricsManager_test.cpp b/cmds/statsd/tests/MetricsManager_test.cpp
index 6cd31dd..cb212a7 100644
--- a/cmds/statsd/tests/MetricsManager_test.cpp
+++ b/cmds/statsd/tests/MetricsManager_test.cpp
@@ -21,6 +21,7 @@
 #include "src/metrics/MetricProducer.h"
 #include "src/metrics/ValueMetricProducer.h"
 #include "src/metrics/metrics_manager_util.h"
+#include "statsd_test_util.h"
 
 #include "frameworks/base/cmds/statsd/src/statsd_config.pb.h"
 
@@ -40,16 +41,16 @@
 
 // TODO: ADD MORE TEST CASES.
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 const long timeBaseSec = 1000;
 
 StatsdConfig buildGoodConfig() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_ON");
+    eventMatcher->set_id(StringToId("SCREEN_IS_ON"));
 
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -59,7 +60,7 @@
             2 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_ON*/);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_OFF");
+    eventMatcher->set_id(StringToId("SCREEN_IS_OFF"));
 
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -69,24 +70,26 @@
             1 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_OFF*/);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_ON_OR_OFF");
+    eventMatcher->set_id(StringToId("SCREEN_ON_OR_OFF"));
 
     AtomMatcher_Combination* combination = eventMatcher->mutable_combination();
     combination->set_operation(LogicalOperation::OR);
-    combination->add_matcher("SCREEN_IS_ON");
-    combination->add_matcher("SCREEN_IS_OFF");
+    combination->add_matcher(StringToId("SCREEN_IS_ON"));
+    combination->add_matcher(StringToId("SCREEN_IS_OFF"));
 
     CountMetric* metric = config.add_count_metric();
-    metric->set_name("3");
-    metric->set_what("SCREEN_IS_ON");
+    metric->set_id(3);
+    metric->set_what(StringToId("SCREEN_IS_ON"));
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     metric->mutable_dimensions()->set_field(2 /*SCREEN_STATE_CHANGE*/);
     metric->mutable_dimensions()->add_child()->set_field(1);
 
+    config.add_no_report_metric(3);
+
     auto alert = config.add_alert();
-    alert->set_name("3");
-    alert->set_metric_name("3");
-    alert->set_number_of_buckets(10);
+    alert->set_id(3);
+    alert->set_metric_id(3);
+    alert->set_num_buckets(10);
     alert->set_refractory_period_secs(100);
     alert->set_trigger_if_sum_gt(100);
     return config;
@@ -94,10 +97,10 @@
 
 StatsdConfig buildCircleMatchers() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_ON");
+    eventMatcher->set_id(StringToId("SCREEN_IS_ON"));
 
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -107,35 +110,35 @@
             2 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_ON*/);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_ON_OR_OFF");
+    eventMatcher->set_id(StringToId("SCREEN_ON_OR_OFF"));
 
     AtomMatcher_Combination* combination = eventMatcher->mutable_combination();
     combination->set_operation(LogicalOperation::OR);
-    combination->add_matcher("SCREEN_IS_ON");
+    combination->add_matcher(StringToId("SCREEN_IS_ON"));
     // Circle dependency
-    combination->add_matcher("SCREEN_ON_OR_OFF");
+    combination->add_matcher(StringToId("SCREEN_ON_OR_OFF"));
 
     return config;
 }
 
 StatsdConfig buildAlertWithUnknownMetric() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_ON");
+    eventMatcher->set_id(StringToId("SCREEN_IS_ON"));
 
     CountMetric* metric = config.add_count_metric();
-    metric->set_name("3");
-    metric->set_what("SCREEN_IS_ON");
+    metric->set_id(3);
+    metric->set_what(StringToId("SCREEN_IS_ON"));
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     metric->mutable_dimensions()->set_field(2 /*SCREEN_STATE_CHANGE*/);
     metric->mutable_dimensions()->add_child()->set_field(1);
 
     auto alert = config.add_alert();
-    alert->set_name("3");
-    alert->set_metric_name("2");
-    alert->set_number_of_buckets(10);
+    alert->set_id(3);
+    alert->set_metric_id(2);
+    alert->set_num_buckets(10);
     alert->set_refractory_period_secs(100);
     alert->set_trigger_if_sum_gt(100);
     return config;
@@ -143,10 +146,10 @@
 
 StatsdConfig buildMissingMatchers() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_ON");
+    eventMatcher->set_id(StringToId("SCREEN_IS_ON"));
 
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -156,29 +159,29 @@
             2 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_ON*/);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_ON_OR_OFF");
+    eventMatcher->set_id(StringToId("SCREEN_ON_OR_OFF"));
 
     AtomMatcher_Combination* combination = eventMatcher->mutable_combination();
     combination->set_operation(LogicalOperation::OR);
-    combination->add_matcher("SCREEN_IS_ON");
+    combination->add_matcher(StringToId("SCREEN_IS_ON"));
     // undefined matcher
-    combination->add_matcher("ABC");
+    combination->add_matcher(StringToId("ABC"));
 
     return config;
 }
 
 StatsdConfig buildMissingPredicate() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     CountMetric* metric = config.add_count_metric();
-    metric->set_name("3");
-    metric->set_what("SCREEN_EVENT");
+    metric->set_id(3);
+    metric->set_what(StringToId("SCREEN_EVENT"));
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
-    metric->set_condition("SOME_CONDITION");
+    metric->set_condition(StringToId("SOME_CONDITION"));
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_EVENT");
+    eventMatcher->set_id(StringToId("SCREEN_EVENT"));
 
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2);
@@ -188,38 +191,38 @@
 
 StatsdConfig buildDimensionMetricsWithMultiTags() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("BATTERY_VERY_LOW");
+    eventMatcher->set_id(StringToId("BATTERY_VERY_LOW"));
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("BATTERY_VERY_VERY_LOW");
+    eventMatcher->set_id(StringToId("BATTERY_VERY_VERY_LOW"));
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(3);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("BATTERY_LOW");
+    eventMatcher->set_id(StringToId("BATTERY_LOW"));
 
     AtomMatcher_Combination* combination = eventMatcher->mutable_combination();
     combination->set_operation(LogicalOperation::OR);
-    combination->add_matcher("BATTERY_VERY_LOW");
-    combination->add_matcher("BATTERY_VERY_VERY_LOW");
+    combination->add_matcher(StringToId("BATTERY_VERY_LOW"));
+    combination->add_matcher(StringToId("BATTERY_VERY_VERY_LOW"));
 
     // Count process state changes, slice by uid, while SCREEN_IS_OFF
     CountMetric* metric = config.add_count_metric();
-    metric->set_name("3");
-    metric->set_what("BATTERY_LOW");
+    metric->set_id(3);
+    metric->set_what(StringToId("BATTERY_LOW"));
     metric->mutable_bucket()->set_bucket_size_millis(30 * 1000L);
     // This case is interesting. We want to dimension across two atoms.
     metric->mutable_dimensions()->add_child()->set_field(1);
 
     auto alert = config.add_alert();
-    alert->set_name("3");
-    alert->set_metric_name("3");
-    alert->set_number_of_buckets(10);
+    alert->set_id(103);
+    alert->set_metric_id(3);
+    alert->set_num_buckets(10);
     alert->set_refractory_period_secs(100);
     alert->set_trigger_if_sum_gt(100);
     return config;
@@ -227,10 +230,10 @@
 
 StatsdConfig buildCirclePredicates() {
     StatsdConfig config;
-    config.set_name("12345");
+    config.set_id(12345);
 
     AtomMatcher* eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_ON");
+    eventMatcher->set_id(StringToId("SCREEN_IS_ON"));
 
     SimpleAtomMatcher* simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -240,7 +243,7 @@
             2 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_ON*/);
 
     eventMatcher = config.add_atom_matcher();
-    eventMatcher->set_name("SCREEN_IS_OFF");
+    eventMatcher->set_id(StringToId("SCREEN_IS_OFF"));
 
     simpleAtomMatcher = eventMatcher->mutable_simple_atom_matcher();
     simpleAtomMatcher->set_atom_id(2 /*SCREEN_STATE_CHANGE*/);
@@ -250,18 +253,18 @@
             1 /*SCREEN_STATE_CHANGE__DISPLAY_STATE__STATE_OFF*/);
 
     auto condition = config.add_predicate();
-    condition->set_name("SCREEN_IS_ON");
+    condition->set_id(StringToId("SCREEN_IS_ON"));
     SimplePredicate* simplePredicate = condition->mutable_simple_predicate();
-    simplePredicate->set_start("SCREEN_IS_ON");
-    simplePredicate->set_stop("SCREEN_IS_OFF");
+    simplePredicate->set_start(StringToId("SCREEN_IS_ON"));
+    simplePredicate->set_stop(StringToId("SCREEN_IS_OFF"));
 
     condition = config.add_predicate();
-    condition->set_name("SCREEN_IS_EITHER_ON_OFF");
+    condition->set_id(StringToId("SCREEN_IS_EITHER_ON_OFF"));
 
     Predicate_Combination* combination = condition->mutable_combination();
     combination->set_operation(LogicalOperation::OR);
-    combination->add_predicate("SCREEN_IS_ON");
-    combination->add_predicate("SCREEN_IS_EITHER_ON_OFF");
+    combination->add_predicate(StringToId("SCREEN_IS_ON"));
+    combination->add_predicate(StringToId("SCREEN_IS_EITHER_ON_OFF"));
 
     return config;
 }
@@ -277,12 +280,15 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
 
     EXPECT_TRUE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                  allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                 conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                 conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                 noReportMetricIds));
     EXPECT_EQ(1u, allMetricProducers.size());
     EXPECT_EQ(1u, allAnomalyTrackers.size());
+    EXPECT_EQ(1u, noReportMetricIds.size());
 }
 
 TEST(MetricsManagerTest, TestDimensionMetricsWithMultiTags) {
@@ -296,10 +302,12 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
 
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 TEST(MetricsManagerTest, TestCircleLogMatcherDependency) {
@@ -313,10 +321,12 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
 
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 TEST(MetricsManagerTest, TestMissingMatchers) {
@@ -330,9 +340,11 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 TEST(MetricsManagerTest, TestMissingPredicate) {
@@ -346,9 +358,11 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 TEST(MetricsManagerTest, TestCirclePredicateDependency) {
@@ -362,10 +376,12 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
 
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 TEST(MetricsManagerTest, testAlertWithUnknownMetric) {
@@ -379,10 +395,12 @@
     unordered_map<int, std::vector<int>> conditionToMetricMap;
     unordered_map<int, std::vector<int>> trackerToMetricMap;
     unordered_map<int, std::vector<int>> trackerToConditionMap;
+    std::set<int64_t> noReportMetricIds;
 
     EXPECT_FALSE(initStatsdConfig(kConfigKey, config, uidMap, timeBaseSec, allTagIds, allAtomMatchers,
                                   allConditionTrackers, allMetricProducers, allAnomalyTrackers,
-                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap));
+                                  conditionToMetricMap, trackerToMetricMap, trackerToConditionMap,
+                                  noReportMetricIds));
 }
 
 #else
diff --git a/cmds/statsd/tests/StatsLogProcessor_test.cpp b/cmds/statsd/tests/StatsLogProcessor_test.cpp
index a27bed5..5d053e2 100644
--- a/cmds/statsd/tests/StatsLogProcessor_test.cpp
+++ b/cmds/statsd/tests/StatsLogProcessor_test.cpp
@@ -41,7 +41,7 @@
  */
 class MockMetricsManager : public MetricsManager {
 public:
-    MockMetricsManager() : MetricsManager(ConfigKey(1, "key"), StatsdConfig(), 1000, new UidMap()) {
+    MockMetricsManager() : MetricsManager(ConfigKey(1, 12345), StatsdConfig(), 1000, new UidMap()) {
     }
 
     MOCK_METHOD0(byteSize, size_t());
@@ -56,7 +56,7 @@
 
     MockMetricsManager mockMetricsManager;
 
-    ConfigKey key(100, "key");
+    ConfigKey key(100, 12345);
     // Expect only the first flush to trigger a check for byte size since the last two are
     // rate-limited.
     EXPECT_CALL(mockMetricsManager, byteSize()).Times(1);
@@ -74,7 +74,7 @@
 
     MockMetricsManager mockMetricsManager;
 
-    ConfigKey key(100, "key");
+    ConfigKey key(100, 12345);
     EXPECT_CALL(mockMetricsManager, byteSize())
             .Times(2)
             .WillRepeatedly(Return(int(StatsdStats::kMaxMetricsBytesPerConfig * .95)));
@@ -98,7 +98,7 @@
 
     MockMetricsManager mockMetricsManager;
 
-    ConfigKey key(100, "key");
+    ConfigKey key(100, 12345);
     EXPECT_CALL(mockMetricsManager, byteSize())
             .Times(1)
             .WillRepeatedly(Return(int(StatsdStats::kMaxMetricsBytesPerConfig * 1.2)));
diff --git a/cmds/statsd/tests/UidMap_test.cpp b/cmds/statsd/tests/UidMap_test.cpp
index 8a394f7..945af27 100644
--- a/cmds/statsd/tests/UidMap_test.cpp
+++ b/cmds/statsd/tests/UidMap_test.cpp
@@ -18,6 +18,7 @@
 #include "guardrail/StatsdStats.h"
 #include "logd/LogEvent.h"
 #include "statslog.h"
+#include "statsd_test_util.h"
 
 #include <gtest/gtest.h>
 
@@ -156,8 +157,8 @@
 TEST(UidMapTest, TestClearingOutput) {
     UidMap m;
 
-    ConfigKey config1(1, "config1");
-    ConfigKey config2(1, "config2");
+    ConfigKey config1(1, StringToId("config1"));
+    ConfigKey config2(1, StringToId("config2"));
 
     m.OnConfigUpdated(config1);
 
@@ -211,7 +212,7 @@
 TEST(UidMapTest, TestMemoryComputed) {
     UidMap m;
 
-    ConfigKey config1(1, "config1");
+    ConfigKey config1(1, StringToId("config1"));
     m.OnConfigUpdated(config1);
 
     size_t startBytes = m.mBytesUsed;
@@ -241,7 +242,7 @@
     UidMap m;
     string buf;
 
-    ConfigKey config1(1, "config1");
+    ConfigKey config1(1, StringToId("config1"));
     m.OnConfigUpdated(config1);
 
     size_t startBytes = m.mBytesUsed;
diff --git a/cmds/statsd/tests/anomaly/AnomalyTracker_test.cpp b/cmds/statsd/tests/anomaly/AnomalyTracker_test.cpp
index da872ad..5842bc8 100644
--- a/cmds/statsd/tests/anomaly/AnomalyTracker_test.cpp
+++ b/cmds/statsd/tests/anomaly/AnomalyTracker_test.cpp
@@ -31,7 +31,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 HashableDimensionKey getMockDimensionKey(int key, string value) {
     DimensionsValue dimensionsValue;
@@ -57,7 +57,7 @@
 TEST(AnomalyTrackerTest, TestConsecutiveBuckets) {
     const int64_t bucketSizeNs = 30 * NS_PER_SEC;
     Alert alert;
-    alert.set_number_of_buckets(3);
+    alert.set_num_buckets(3);
     alert.set_refractory_period_secs(2 * bucketSizeNs / NS_PER_SEC);
     alert.set_trigger_if_sum_gt(2);
 
@@ -177,7 +177,7 @@
 TEST(AnomalyTrackerTest, TestSparseBuckets) {
     const int64_t bucketSizeNs = 30 * NS_PER_SEC;
     Alert alert;
-    alert.set_number_of_buckets(3);
+    alert.set_num_buckets(3);
     alert.set_refractory_period_secs(2 * bucketSizeNs / NS_PER_SEC);
     alert.set_trigger_if_sum_gt(2);
 
diff --git a/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp b/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
index 705804f..819f2be 100644
--- a/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
+++ b/cmds/statsd/tests/condition/SimpleConditionTracker_test.cpp
@@ -11,7 +11,9 @@
 // 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 "src/condition/SimpleConditionTracker.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -29,7 +31,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 const int ATTRIBUTION_NODE_FIELD_ID = 1;
 const int ATTRIBUTION_UID_FIELD_ID = 1;
@@ -38,9 +40,9 @@
 SimplePredicate getWakeLockHeldCondition(bool countNesting, bool defaultFalse,
                                          bool outputSlicedUid, Position position) {
     SimplePredicate simplePredicate;
-    simplePredicate.set_start("WAKE_LOCK_ACQUIRE");
-    simplePredicate.set_stop("WAKE_LOCK_RELEASE");
-    simplePredicate.set_stop_all("RELEASE_ALL");
+    simplePredicate.set_start(StringToId("WAKE_LOCK_ACQUIRE"));
+    simplePredicate.set_stop(StringToId("WAKE_LOCK_RELEASE"));
+    simplePredicate.set_stop_all(StringToId("RELEASE_ALL"));
     if (outputSlicedUid) {
         simplePredicate.mutable_dimensions()->set_field(TAG_ID);
         simplePredicate.mutable_dimensions()->add_child()->set_field(ATTRIBUTION_NODE_FIELD_ID);
@@ -73,10 +75,10 @@
     event->init();
 }
 
-std::map<string, std::vector<HashableDimensionKey>> getWakeLockQueryKey(
+std::map<int64_t, std::vector<HashableDimensionKey>> getWakeLockQueryKey(
     const Position position,
     const std::vector<int> &uids, const string& conditionName) {
-    std::map<string, std::vector<HashableDimensionKey>>  outputKeyMap;
+    std::map<int64_t, std::vector<HashableDimensionKey>>  outputKeyMap;
     std::vector<int> uid_indexes;
     switch(position) {
         case Position::FIRST:
@@ -96,28 +98,29 @@
     for (const int idx : uid_indexes) {
         DimensionsValue dimensionsValue;
         dimensionsValue.set_field(TAG_ID);
-        dimensionsValue.mutable_value_tuple()->add_dimensions_value()->set_field(ATTRIBUTION_NODE_FIELD_ID);
+        dimensionsValue.mutable_value_tuple()->add_dimensions_value()->set_field(
+            ATTRIBUTION_NODE_FIELD_ID);
         dimensionsValue.mutable_value_tuple()->mutable_dimensions_value(0)
             ->mutable_value_tuple()->add_dimensions_value()->set_field(ATTRIBUTION_NODE_FIELD_ID);
         dimensionsValue.mutable_value_tuple()->mutable_dimensions_value(0)
             ->mutable_value_tuple()->mutable_dimensions_value(0)->set_value_int(uids[idx]);
-        outputKeyMap[conditionName].push_back(HashableDimensionKey(dimensionsValue));
+        outputKeyMap[StringToId(conditionName)].push_back(HashableDimensionKey(dimensionsValue));
     }
     return outputKeyMap;
 }
 
 TEST(SimpleConditionTrackerTest, TestNonSlicedCondition) {
     SimplePredicate simplePredicate;
-    simplePredicate.set_start("SCREEN_TURNED_ON");
-    simplePredicate.set_stop("SCREEN_TURNED_OFF");
+    simplePredicate.set_start(StringToId("SCREEN_TURNED_ON"));
+    simplePredicate.set_stop(StringToId("SCREEN_TURNED_OFF"));
     simplePredicate.set_count_nesting(false);
     simplePredicate.set_initial_value(SimplePredicate_InitialValue_UNKNOWN);
 
-    unordered_map<string, int> trackerNameIndexMap;
-    trackerNameIndexMap["SCREEN_TURNED_ON"] = 0;
-    trackerNameIndexMap["SCREEN_TURNED_OFF"] = 1;
+    unordered_map<int64_t, int> trackerNameIndexMap;
+    trackerNameIndexMap[StringToId("SCREEN_TURNED_ON")] = 0;
+    trackerNameIndexMap[StringToId("SCREEN_TURNED_OFF")] = 1;
 
-    SimpleConditionTracker conditionTracker(kConfigKey, "SCREEN_IS_ON", 0 /*tracker index*/,
+    SimpleConditionTracker conditionTracker(kConfigKey, StringToId("SCREEN_IS_ON"), 0 /*tracker index*/,
                                             simplePredicate, trackerNameIndexMap);
 
     LogEvent event(1 /*tagId*/, 0 /*timestamp*/);
@@ -191,15 +194,15 @@
 
 TEST(SimpleConditionTrackerTest, TestNonSlicedConditionNestCounting) {
     SimplePredicate simplePredicate;
-    simplePredicate.set_start("SCREEN_TURNED_ON");
-    simplePredicate.set_stop("SCREEN_TURNED_OFF");
+    simplePredicate.set_start(StringToId("SCREEN_TURNED_ON"));
+    simplePredicate.set_stop(StringToId("SCREEN_TURNED_OFF"));
     simplePredicate.set_count_nesting(true);
 
-    unordered_map<string, int> trackerNameIndexMap;
-    trackerNameIndexMap["SCREEN_TURNED_ON"] = 0;
-    trackerNameIndexMap["SCREEN_TURNED_OFF"] = 1;
+    unordered_map<int64_t, int> trackerNameIndexMap;
+    trackerNameIndexMap[StringToId("SCREEN_TURNED_ON")] = 0;
+    trackerNameIndexMap[StringToId("SCREEN_TURNED_OFF")] = 1;
 
-    SimpleConditionTracker conditionTracker(kConfigKey, "SCREEN_IS_ON",
+    SimpleConditionTracker conditionTracker(kConfigKey, StringToId("SCREEN_IS_ON"),
                                             0 /*condition tracker index*/, simplePredicate,
                                             trackerNameIndexMap);
 
@@ -267,12 +270,12 @@
                 position);
         string conditionName = "WL_HELD_BY_UID2";
 
-        unordered_map<string, int> trackerNameIndexMap;
-        trackerNameIndexMap["WAKE_LOCK_ACQUIRE"] = 0;
-        trackerNameIndexMap["WAKE_LOCK_RELEASE"] = 1;
-        trackerNameIndexMap["RELEASE_ALL"] = 2;
+        unordered_map<int64_t, int> trackerNameIndexMap;
+        trackerNameIndexMap[StringToId("WAKE_LOCK_ACQUIRE")] = 0;
+        trackerNameIndexMap[StringToId("WAKE_LOCK_RELEASE")] = 1;
+        trackerNameIndexMap[StringToId("RELEASE_ALL")] = 2;
 
-        SimpleConditionTracker conditionTracker(kConfigKey, conditionName,
+        SimpleConditionTracker conditionTracker(kConfigKey, StringToId(conditionName),
                                                 0 /*condition tracker index*/, simplePredicate,
                                                 trackerNameIndexMap);
         std::vector<int> uids = {111, 222, 333};
@@ -371,12 +374,12 @@
             Position::ANY /* position */);
     string conditionName = "WL_HELD";
 
-    unordered_map<string, int> trackerNameIndexMap;
-    trackerNameIndexMap["WAKE_LOCK_ACQUIRE"] = 0;
-    trackerNameIndexMap["WAKE_LOCK_RELEASE"] = 1;
-    trackerNameIndexMap["RELEASE_ALL"] = 2;
+    unordered_map<int64_t, int> trackerNameIndexMap;
+    trackerNameIndexMap[StringToId("WAKE_LOCK_ACQUIRE")] = 0;
+    trackerNameIndexMap[StringToId("WAKE_LOCK_RELEASE")] = 1;
+    trackerNameIndexMap[StringToId("RELEASE_ALL")] = 2;
 
-    SimpleConditionTracker conditionTracker(kConfigKey, conditionName,
+    SimpleConditionTracker conditionTracker(kConfigKey, StringToId(conditionName),
                                             0 /*condition tracker index*/, simplePredicate,
                                             trackerNameIndexMap);
 
@@ -461,12 +464,12 @@
                 position);
         string conditionName = "WL_HELD_BY_UID3";
 
-        unordered_map<string, int> trackerNameIndexMap;
-        trackerNameIndexMap["WAKE_LOCK_ACQUIRE"] = 0;
-        trackerNameIndexMap["WAKE_LOCK_RELEASE"] = 1;
-        trackerNameIndexMap["RELEASE_ALL"] = 2;
+        unordered_map<int64_t, int> trackerNameIndexMap;
+        trackerNameIndexMap[StringToId("WAKE_LOCK_ACQUIRE")] = 0;
+        trackerNameIndexMap[StringToId("WAKE_LOCK_RELEASE")] = 1;
+        trackerNameIndexMap[StringToId("RELEASE_ALL")] = 2;
 
-        SimpleConditionTracker conditionTracker(kConfigKey, conditionName,
+        SimpleConditionTracker conditionTracker(kConfigKey, StringToId(conditionName),
                                                 0 /*condition tracker index*/, simplePredicate,
                                                 trackerNameIndexMap);
 
diff --git a/cmds/statsd/tests/e2e/MetricConditionLink_e2e_test.cpp b/cmds/statsd/tests/e2e/MetricConditionLink_e2e_test.cpp
index c747016..b56b817 100644
--- a/cmds/statsd/tests/e2e/MetricConditionLink_e2e_test.cpp
+++ b/cmds/statsd/tests/e2e/MetricConditionLink_e2e_test.cpp
@@ -55,16 +55,16 @@
     *config.add_predicate() = isInBackgroundPredicate;
 
     auto combinationPredicate = config.add_predicate();
-    combinationPredicate->set_name("combinationPredicate");
+    combinationPredicate->set_id(StringToId("combinationPredicate"));
     combinationPredicate->mutable_combination()->set_operation(LogicalOperation::AND);
     addPredicateToPredicateCombination(screenIsOffPredicate, combinationPredicate);
     addPredicateToPredicateCombination(isSyncingPredicate, combinationPredicate);
     addPredicateToPredicateCombination(isInBackgroundPredicate, combinationPredicate);
 
     auto countMetric = config.add_count_metric();
-    countMetric->set_name("AppCrashes");
-    countMetric->set_what(appCrashMatcher.name());
-    countMetric->set_condition(combinationPredicate->name());
+    countMetric->set_id(StringToId("AppCrashes"));
+    countMetric->set_what(appCrashMatcher.id());
+    countMetric->set_condition(combinationPredicate->id());
     // The metric is dimensioning by uid only.
     *countMetric->mutable_dimensions() =
         CreateDimensions(android::util::PROCESS_LIFE_CYCLE_STATE_CHANGED, {1});
@@ -72,7 +72,7 @@
 
     // Links between crash atom and condition of app is in syncing.
     auto links = countMetric->add_links();
-    links->set_condition(isSyncingPredicate.name());
+    links->set_condition(isSyncingPredicate.id());
     auto dimensionWhat = links->mutable_dimensions_in_what();
     dimensionWhat->set_field(android::util::PROCESS_LIFE_CYCLE_STATE_CHANGED);
     dimensionWhat->add_child()->set_field(1);  // uid field.
@@ -82,7 +82,7 @@
 
     // Links between crash atom and condition of app is in background.
     links = countMetric->add_links();
-    links->set_condition(isInBackgroundPredicate.name());
+    links->set_condition(isInBackgroundPredicate.id());
     dimensionWhat = links->mutable_dimensions_in_what();
     dimensionWhat->set_field(android::util::PROCESS_LIFE_CYCLE_STATE_CHANGED);
     dimensionWhat->add_child()->set_field(1);  // uid field.
diff --git a/cmds/statsd/tests/e2e/WakelockDuration_e2e_test.cpp b/cmds/statsd/tests/e2e/WakelockDuration_e2e_test.cpp
index 8d7b2d5..ecdb002 100644
--- a/cmds/statsd/tests/e2e/WakelockDuration_e2e_test.cpp
+++ b/cmds/statsd/tests/e2e/WakelockDuration_e2e_test.cpp
@@ -43,9 +43,9 @@
     *config.add_predicate() = holdingWakelockPredicate;
 
     auto durationMetric = config.add_duration_metric();
-    durationMetric->set_name("WakelockDuration");
-    durationMetric->set_what(holdingWakelockPredicate.name());
-    durationMetric->set_condition(screenIsOffPredicate.name());
+    durationMetric->set_id(StringToId("WakelockDuration"));
+    durationMetric->set_what(holdingWakelockPredicate.id());
+    durationMetric->set_condition(screenIsOffPredicate.id());
     durationMetric->set_aggregation_type(aggregationType);
     // The metric is dimensioning by first attribution node and only by uid.
     *durationMetric->mutable_dimensions() =
diff --git a/cmds/statsd/tests/guardrail/StatsdStats_test.cpp b/cmds/statsd/tests/guardrail/StatsdStats_test.cpp
index 7658044..a134300 100644
--- a/cmds/statsd/tests/guardrail/StatsdStats_test.cpp
+++ b/cmds/statsd/tests/guardrail/StatsdStats_test.cpp
@@ -14,6 +14,7 @@
 
 #include "src/guardrail/StatsdStats.h"
 #include "statslog.h"
+#include "tests/statsd_test_util.h"
 
 #include <gtest/gtest.h>
 #include <vector>
@@ -28,8 +29,7 @@
 
 TEST(StatsdStatsTest, TestValidConfigAdd) {
     StatsdStats stats;
-    string name = "StatsdTest";
-    ConfigKey key(0, name);
+    ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
@@ -45,7 +45,7 @@
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport = report.config_stats(0);
     EXPECT_EQ(0, configReport.uid());
-    EXPECT_EQ(name, configReport.name());
+    EXPECT_EQ(12345, configReport.id());
     EXPECT_EQ(metricsCount, configReport.metric_count());
     EXPECT_EQ(conditionsCount, configReport.condition_count());
     EXPECT_EQ(matchersCount, configReport.matcher_count());
@@ -56,8 +56,7 @@
 
 TEST(StatsdStatsTest, TestInvalidConfigAdd) {
     StatsdStats stats;
-    string name = "StatsdTest";
-    ConfigKey key(0, name);
+    ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
@@ -78,8 +77,7 @@
 
 TEST(StatsdStatsTest, TestConfigRemove) {
     StatsdStats stats;
-    string name = "StatsdTest";
-    ConfigKey key(0, name);
+    ConfigKey key(0, 12345);
     const int metricsCount = 10;
     const int conditionsCount = 20;
     const int matchersCount = 30;
@@ -105,22 +103,22 @@
 
 TEST(StatsdStatsTest, TestSubStats) {
     StatsdStats stats;
-    ConfigKey key(0, "test");
+    ConfigKey key(0, 12345);
     stats.noteConfigReceived(key, 2, 3, 4, 5, true);
 
-    stats.noteMatcherMatched(key, "matcher1");
-    stats.noteMatcherMatched(key, "matcher1");
-    stats.noteMatcherMatched(key, "matcher2");
+    stats.noteMatcherMatched(key, StringToId("matcher1"));
+    stats.noteMatcherMatched(key, StringToId("matcher1"));
+    stats.noteMatcherMatched(key, StringToId("matcher2"));
 
-    stats.noteConditionDimensionSize(key, "condition1", 250);
-    stats.noteConditionDimensionSize(key, "condition1", 240);
+    stats.noteConditionDimensionSize(key, StringToId("condition1"), 250);
+    stats.noteConditionDimensionSize(key, StringToId("condition1"), 240);
 
-    stats.noteMetricDimensionSize(key, "metric1", 201);
-    stats.noteMetricDimensionSize(key, "metric1", 202);
+    stats.noteMetricDimensionSize(key, StringToId("metric1"), 201);
+    stats.noteMetricDimensionSize(key, StringToId("metric1"), 202);
 
-    stats.noteAnomalyDeclared(key, "alert1");
-    stats.noteAnomalyDeclared(key, "alert1");
-    stats.noteAnomalyDeclared(key, "alert2");
+    stats.noteAnomalyDeclared(key, StringToId("alert1"));
+    stats.noteAnomalyDeclared(key, StringToId("alert1"));
+    stats.noteAnomalyDeclared(key, StringToId("alert2"));
 
     // broadcast-> 2
     stats.noteBroadcastSent(key);
@@ -147,39 +145,39 @@
 
     EXPECT_EQ(2, configReport.matcher_stats_size());
     // matcher1 is the first in the list
-    if (!configReport.matcher_stats(0).name().compare("matcher1")) {
+    if (configReport.matcher_stats(0).id() == StringToId("matcher1")) {
         EXPECT_EQ(2, configReport.matcher_stats(0).matched_times());
         EXPECT_EQ(1, configReport.matcher_stats(1).matched_times());
-        EXPECT_EQ("matcher2", configReport.matcher_stats(1).name());
+        EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(1).id());
     } else {
         // matcher1 is the second in the list.
         EXPECT_EQ(1, configReport.matcher_stats(0).matched_times());
-        EXPECT_EQ("matcher2", configReport.matcher_stats(0).name());
+        EXPECT_EQ(StringToId("matcher2"), configReport.matcher_stats(0).id());
 
         EXPECT_EQ(2, configReport.matcher_stats(1).matched_times());
-        EXPECT_EQ("matcher1", configReport.matcher_stats(1).name());
+        EXPECT_EQ(StringToId("matcher1"), configReport.matcher_stats(1).id());
     }
 
     EXPECT_EQ(2, configReport.alert_stats_size());
-    bool alert1first = !configReport.alert_stats(0).name().compare("alert1");
-    EXPECT_EQ("alert1", configReport.alert_stats(alert1first ? 0 : 1).name());
+    bool alert1first = configReport.alert_stats(0).id() == StringToId("alert1");
+    EXPECT_EQ(StringToId("alert1"), configReport.alert_stats(alert1first ? 0 : 1).id());
     EXPECT_EQ(2, configReport.alert_stats(alert1first ? 0 : 1).alerted_times());
-    EXPECT_EQ("alert2", configReport.alert_stats(alert1first ? 1 : 0).name());
+    EXPECT_EQ(StringToId("alert2"), configReport.alert_stats(alert1first ? 1 : 0).id());
     EXPECT_EQ(1, configReport.alert_stats(alert1first ? 1 : 0).alerted_times());
 
     EXPECT_EQ(1, configReport.condition_stats_size());
-    EXPECT_EQ("condition1", configReport.condition_stats(0).name());
+    EXPECT_EQ(StringToId("condition1"), configReport.condition_stats(0).id());
     EXPECT_EQ(250, configReport.condition_stats(0).max_tuple_counts());
 
     EXPECT_EQ(1, configReport.metric_stats_size());
-    EXPECT_EQ("metric1", configReport.metric_stats(0).name());
+    EXPECT_EQ(StringToId("metric1"), configReport.metric_stats(0).id());
     EXPECT_EQ(202, configReport.metric_stats(0).max_tuple_counts());
 
     // after resetting the stats, some new events come
-    stats.noteMatcherMatched(key, "matcher99");
-    stats.noteConditionDimensionSize(key, "condition99", 300);
-    stats.noteMetricDimensionSize(key, "metric99", 270);
-    stats.noteAnomalyDeclared(key, "alert99");
+    stats.noteMatcherMatched(key, StringToId("matcher99"));
+    stats.noteConditionDimensionSize(key, StringToId("condition99"), 300);
+    stats.noteMetricDimensionSize(key, StringToId("metric99tion99"), 270);
+    stats.noteAnomalyDeclared(key, StringToId("alert99"));
 
     // now the config stats should only contain the stats about the new event.
     stats.dumpStats(&output, false);
@@ -188,19 +186,19 @@
     EXPECT_EQ(1, report.config_stats_size());
     const auto& configReport2 = report.config_stats(0);
     EXPECT_EQ(1, configReport2.matcher_stats_size());
-    EXPECT_EQ("matcher99", configReport2.matcher_stats(0).name());
+    EXPECT_EQ(StringToId("matcher99"), configReport2.matcher_stats(0).id());
     EXPECT_EQ(1, configReport2.matcher_stats(0).matched_times());
 
     EXPECT_EQ(1, configReport2.condition_stats_size());
-    EXPECT_EQ("condition99", configReport2.condition_stats(0).name());
+    EXPECT_EQ(StringToId("condition99"), configReport2.condition_stats(0).id());
     EXPECT_EQ(300, configReport2.condition_stats(0).max_tuple_counts());
 
     EXPECT_EQ(1, configReport2.metric_stats_size());
-    EXPECT_EQ("metric99", configReport2.metric_stats(0).name());
+    EXPECT_EQ(StringToId("metric99tion99"), configReport2.metric_stats(0).id());
     EXPECT_EQ(270, configReport2.metric_stats(0).max_tuple_counts());
 
     EXPECT_EQ(1, configReport2.alert_stats_size());
-    EXPECT_EQ("alert99", configReport2.alert_stats(0).name());
+    EXPECT_EQ(StringToId("alert99"), configReport2.alert_stats(0).id());
     EXPECT_EQ(1, configReport2.alert_stats(0).alerted_times());
 }
 
@@ -260,7 +258,7 @@
     for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
         timestamps.push_back(i);
     }
-    ConfigKey key(0, "test");
+    ConfigKey key(0, 12345);
     stats.noteConfigReceived(key, 2, 3, 4, 5, true);
 
     for (int i = 0; i < StatsdStats::kMaxTimestampCount; i++) {
diff --git a/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp b/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
index 6e114a6..4cb242a 100644
--- a/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/CountMetricProducer_test.cpp
@@ -15,6 +15,7 @@
 #include "src/metrics/CountMetricProducer.h"
 #include "src/dimension.h"
 #include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -33,7 +34,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 TEST(CountMetricProducerTest, TestNonDimensionalEvents) {
     int64_t bucketStartTimeNs = 10000000000;
@@ -43,7 +44,7 @@
     int tagId = 1;
 
     CountMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
 
     LogEvent event1(tagId, bucketStartTimeNs + 1);
@@ -100,9 +101,9 @@
     int64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
     CountMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_condition("SCREEN_ON");
+    metric.set_condition(StringToId("SCREEN_ON"));
 
     LogEvent event1(1, bucketStartTimeNs + 1);
     LogEvent event2(1, bucketStartTimeNs + 10);
@@ -142,11 +143,11 @@
     int conditionTagId = 2;
 
     CountMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_condition("APP_IN_BACKGROUND_PER_UID_AND_SCREEN_ON");
+    metric.set_condition(StringToId("APP_IN_BACKGROUND_PER_UID_AND_SCREEN_ON"));
     MetricConditionLink* link = metric.add_links();
-    link->set_condition("APP_IN_BACKGROUND_PER_UID");
+    link->set_condition(StringToId("APP_IN_BACKGROUND_PER_UID"));
     *link->mutable_dimensions_in_what() = buildSimpleAtomFieldMatcher(tagId, 1);
     *link->mutable_dimensions_in_condition() = buildSimpleAtomFieldMatcher(conditionTagId, 2);
 
@@ -154,13 +155,15 @@
     event1.write("111");  // uid
     event1.init();
     ConditionKey key1;
-    key1["APP_IN_BACKGROUND_PER_UID"] = {getMockedDimensionKey(conditionTagId, 2, "111")};
+    key1[StringToId("APP_IN_BACKGROUND_PER_UID")] =
+        {getMockedDimensionKey(conditionTagId, 2, "111")};
 
     LogEvent event2(tagId, bucketStartTimeNs + 10);
     event2.write("222");  // uid
     event2.init();
     ConditionKey key2;
-    key2["APP_IN_BACKGROUND_PER_UID"] = {getMockedDimensionKey(conditionTagId, 2, "222")};
+    key2[StringToId("APP_IN_BACKGROUND_PER_UID")] =
+        {getMockedDimensionKey(conditionTagId, 2, "222")};
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     EXPECT_CALL(*wizard, query(_, key1)).WillOnce(Return(ConditionState::kFalse));
@@ -189,10 +192,10 @@
 
 TEST(CountMetricProducerTest, TestAnomalyDetection) {
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name("1");
+    alert.set_id(11);
+    alert.set_metric_id(1);
     alert.set_trigger_if_sum_gt(2);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     alert.set_refractory_period_secs(1);
 
     int64_t bucketStartTimeNs = 10000000000;
@@ -201,7 +204,7 @@
     int64_t bucket3StartTimeNs = bucketStartTimeNs + 2 * bucketSizeNs;
 
     CountMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
diff --git a/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp b/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
index 8ee94c7..a4213de 100644
--- a/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/DurationMetricProducer_test.cpp
@@ -36,7 +36,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 TEST(DurationMetricTrackerTest, TestNoCondition) {
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
@@ -44,7 +44,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
     DurationMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
     metric.set_aggregation_type(DurationMetric_AggregationType_SUM);
 
@@ -79,7 +79,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
     DurationMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
     metric.set_aggregation_type(DurationMetric_AggregationType_SUM);
 
diff --git a/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp b/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
index 0ba1c2f..7171de9 100644
--- a/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/EventMetricProducer_test.cpp
@@ -15,6 +15,7 @@
 #include "src/metrics/EventMetricProducer.h"
 #include "src/dimension.h"
 #include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -33,7 +34,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 TEST(EventMetricProducerTest, TestNoCondition) {
     uint64_t bucketStartTimeNs = 10000000000;
@@ -41,7 +42,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
     EventMetric metric;
-    metric.set_name("1");
+    metric.set_id(1);
 
     LogEvent event1(1 /*tag id*/, bucketStartTimeNs + 1);
     LogEvent event2(1 /*tag id*/, bucketStartTimeNs + 2);
@@ -64,8 +65,8 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
     EventMetric metric;
-    metric.set_name("1");
-    metric.set_condition("SCREEN_ON");
+    metric.set_id(1);
+    metric.set_condition(StringToId("SCREEN_ON"));
 
     LogEvent event1(1, bucketStartTimeNs + 1);
     LogEvent event2(1, bucketStartTimeNs + 10);
@@ -93,10 +94,10 @@
     int conditionTagId = 2;
 
     EventMetric metric;
-    metric.set_name("1");
-    metric.set_condition("APP_IN_BACKGROUND_PER_UID_AND_SCREEN_ON");
+    metric.set_id(1);
+    metric.set_condition(StringToId("APP_IN_BACKGROUND_PER_UID_AND_SCREEN_ON"));
     MetricConditionLink* link = metric.add_links();
-    link->set_condition("APP_IN_BACKGROUND_PER_UID");
+    link->set_condition(StringToId("APP_IN_BACKGROUND_PER_UID"));
     *link->mutable_dimensions_in_what() = buildSimpleAtomFieldMatcher(tagId, 1);
     *link->mutable_dimensions_in_condition() = buildSimpleAtomFieldMatcher(conditionTagId, 2);
 
@@ -104,13 +105,13 @@
     EXPECT_TRUE(event1.write("111"));
     event1.init();
     ConditionKey key1;
-    key1["APP_IN_BACKGROUND_PER_UID"] = {getMockedDimensionKey(conditionTagId, 2, "111")};
+    key1[StringToId("APP_IN_BACKGROUND_PER_UID")] = {getMockedDimensionKey(conditionTagId, 2, "111")};
 
     LogEvent event2(tagId, bucketStartTimeNs + 10);
     EXPECT_TRUE(event2.write("222"));
     event2.init();
     ConditionKey key2;
-    key2["APP_IN_BACKGROUND_PER_UID"] = {getMockedDimensionKey(conditionTagId, 2, "222")};
+    key2[StringToId("APP_IN_BACKGROUND_PER_UID")] = {getMockedDimensionKey(conditionTagId, 2, "222")};
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     EXPECT_CALL(*wizard, query(_, key1)).WillOnce(Return(ConditionState::kFalse));
diff --git a/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp b/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
index 359851f..749cf26 100644
--- a/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/GaugeMetricProducer_test.cpp
@@ -15,6 +15,7 @@
 #include "src/metrics/GaugeMetricProducer.h"
 #include "logd/LogEvent.h"
 #include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -34,9 +35,9 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 const int tagId = 1;
-const string metricName = "test_metric";
+const int64_t metricId = 123;
 const int64_t bucketStartTimeNs = 10000000000;
 const int64_t bucketSizeNs = 60 * 1000 * 1000 * 1000LL;
 const int64_t bucket2StartTimeNs = bucketStartTimeNs + bucketSizeNs;
@@ -45,7 +46,7 @@
 
 TEST(GaugeMetricProducerTest, TestNoCondition) {
     GaugeMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
     metric.mutable_gauge_fields_filter()->set_include_all(false);
     auto gaugeFieldMatcher = metric.mutable_gauge_fields_filter()->mutable_fields();
@@ -119,12 +120,12 @@
 
 TEST(GaugeMetricProducerTest, TestWithCondition) {
     GaugeMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
     auto gaugeFieldMatcher = metric.mutable_gauge_fields_filter()->mutable_fields();
     gaugeFieldMatcher->set_field(tagId);
     gaugeFieldMatcher->add_child()->set_field(2);
-    metric.set_condition("SCREEN_ON");
+    metric.set_condition(StringToId("SCREEN_ON"));
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
@@ -186,7 +187,7 @@
     EXPECT_CALL(*pullerManager, UnRegisterReceiver(tagId, _)).WillOnce(Return());
 
     GaugeMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
     auto gaugeFieldMatcher = metric.mutable_gauge_fields_filter()->mutable_fields();
     gaugeFieldMatcher->set_field(tagId);
@@ -195,10 +196,10 @@
                                       tagId, tagId, bucketStartTimeNs, pullerManager);
 
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name(metricName);
+    alert.set_id(101);
+    alert.set_metric_id(metricId);
     alert.set_trigger_if_sum_gt(25);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     sp<AnomalyTracker> anomalyTracker = gaugeProducer.addAnomalyTracker(alert);
 
     int tagId = 1;
diff --git a/cmds/statsd/tests/metrics/MaxDurationTracker_test.cpp b/cmds/statsd/tests/metrics/MaxDurationTracker_test.cpp
index 7843ca0..704a466 100644
--- a/cmds/statsd/tests/metrics/MaxDurationTracker_test.cpp
+++ b/cmds/statsd/tests/metrics/MaxDurationTracker_test.cpp
@@ -13,8 +13,9 @@
 // limitations under the License.
 
 #include "src/metrics/duration_helper/MaxDurationTracker.h"
-#include "metrics_test_helper.h"
 #include "src/condition/ConditionWizard.h"
+#include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -36,7 +37,7 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 
 const int TagId = 1;
 
@@ -50,12 +51,13 @@
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     ConditionKey conditionKey1;
-    conditionKey1["condition"] = conditionKey;
+    conditionKey1[StringToId("condition")] = conditionKey;
 
     uint64_t bucketStartTimeNs = 10000000000;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, -1, false, bucketStartTimeNs,
+    int64_t metricId = 1;
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, -1, false, bucketStartTimeNs,
                                bucketSizeNs, {});
 
     tracker.noteStart(key1, true, bucketStartTimeNs, conditionKey1);
@@ -79,12 +81,13 @@
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     ConditionKey conditionKey1;
-    conditionKey1["condition"] = conditionKey;
+    conditionKey1[StringToId("condition")] = conditionKey;
 
     uint64_t bucketStartTimeNs = 10000000000;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, -1, false, bucketStartTimeNs,
+    int64_t metricId = 1;
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, -1, false, bucketStartTimeNs,
                                bucketSizeNs, {});
 
     tracker.noteStart(key1, true, bucketStartTimeNs + 1, conditionKey1);
@@ -110,12 +113,13 @@
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     ConditionKey conditionKey1;
-    conditionKey1["condition"] = conditionKey;
+    conditionKey1[StringToId("condition")] = conditionKey;
 
     uint64_t bucketStartTimeNs = 10000000000;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, -1, false, bucketStartTimeNs,
+    int64_t metricId = 1;
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, -1, false, bucketStartTimeNs,
                                bucketSizeNs, {});
 
     // The event starts.
@@ -141,12 +145,13 @@
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     ConditionKey conditionKey1;
-    conditionKey1["condition"] = conditionKey;
+    conditionKey1[StringToId("condition")] = conditionKey;
 
     uint64_t bucketStartTimeNs = 10000000000;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, -1, true, bucketStartTimeNs,
+    int64_t metricId = 1;
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, -1, true, bucketStartTimeNs,
                                bucketSizeNs, {});
 
     // 2 starts
@@ -177,7 +182,7 @@
 
     ConditionKey conditionKey1;
     HashableDimensionKey eventKey = getMockedDimensionKey(TagId, 2, "maps");
-    conditionKey1["APP_BACKGROUND"] = conditionKey;
+    conditionKey1[StringToId("APP_BACKGROUND")] = conditionKey;
 
     EXPECT_CALL(*wizard, query(_, conditionKey1))  // #4
             .WillOnce(Return(ConditionState::kFalse));
@@ -189,7 +194,8 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
     int64_t durationTimeNs = 2 * 1000;
 
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, false, bucketStartTimeNs,
+    int64_t metricId = 1;
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, false, bucketStartTimeNs,
                                bucketSizeNs, {});
     EXPECT_TRUE(tracker.mAnomalyTrackers.empty());
 
@@ -206,23 +212,24 @@
 }
 
 TEST(MaxDurationTrackerTest, TestAnomalyDetection) {
+    int64_t metricId = 1;
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name("metric");
+    alert.set_id(101);
+    alert.set_metric_id(metricId);
     alert.set_trigger_if_sum_gt(32 * NS_PER_SEC);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     alert.set_refractory_period_secs(1);
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     ConditionKey conditionKey1;
-    conditionKey1["APP_BACKGROUND"] = conditionKey;
+    conditionKey1[StringToId("APP_BACKGROUND")] = conditionKey;
     uint64_t bucketStartTimeNs = 10 * NS_PER_SEC;
     uint64_t eventStartTimeNs = bucketStartTimeNs + NS_PER_SEC + 1;
     uint64_t bucketSizeNs = 30 * NS_PER_SEC;
 
     sp<DurationAnomalyTracker> anomalyTracker = new DurationAnomalyTracker(alert, kConfigKey);
-    MaxDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, -1, true, bucketStartTimeNs,
+    MaxDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, -1, true, bucketStartTimeNs,
                                bucketSizeNs, {anomalyTracker});
 
     tracker.noteStart(key1, true, eventStartTimeNs, conditionKey1);
diff --git a/cmds/statsd/tests/metrics/OringDurationTracker_test.cpp b/cmds/statsd/tests/metrics/OringDurationTracker_test.cpp
index 550b059..36cdaae 100644
--- a/cmds/statsd/tests/metrics/OringDurationTracker_test.cpp
+++ b/cmds/statsd/tests/metrics/OringDurationTracker_test.cpp
@@ -13,8 +13,9 @@
 // limitations under the License.
 
 #include "src/metrics/duration_helper/OringDurationTracker.h"
-#include "metrics_test_helper.h"
 #include "src/condition/ConditionWizard.h"
+#include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -34,8 +35,9 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 const int TagId = 1;
+const int64_t metricId = 123;
 const HashableDimensionKey eventKey = getMockedDimensionKey(TagId, 0, "event");
 
 const std::vector<HashableDimensionKey> kConditionKey1 = {getMockedDimensionKey(TagId, 1, "maps")};
@@ -46,7 +48,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
 
@@ -55,7 +57,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
     uint64_t durationTimeNs = 2 * 1000;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, false,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, false,
                                  bucketStartTimeNs, bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -75,7 +77,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
 
@@ -83,7 +85,7 @@
     uint64_t eventStartTimeNs = bucketStartTimeNs + 1;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true, bucketStartTimeNs,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true, bucketStartTimeNs,
                                  bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -102,7 +104,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
 
@@ -110,7 +112,7 @@
     uint64_t eventStartTimeNs = bucketStartTimeNs + 1;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true, bucketStartTimeNs,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true, bucketStartTimeNs,
                                  bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -128,7 +130,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
 
@@ -137,7 +139,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
     uint64_t durationTimeNs = 2 * 1000;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true, bucketStartTimeNs,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true, bucketStartTimeNs,
                                  bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -163,7 +165,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     EXPECT_CALL(*wizard, query(_, key1))  // #4
             .WillOnce(Return(ConditionState::kFalse));
@@ -175,7 +177,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
     uint64_t durationTimeNs = 2 * 1000;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, false,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, false,
                                  bucketStartTimeNs, bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -194,7 +196,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     EXPECT_CALL(*wizard, query(_, key1))
             .Times(2)
@@ -208,7 +210,7 @@
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
     uint64_t durationTimeNs = 2 * 1000;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, false,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, false,
                                  bucketStartTimeNs, bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -229,7 +231,7 @@
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
 
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
 
     EXPECT_CALL(*wizard, query(_, key1))  // #4
             .WillOnce(Return(ConditionState::kFalse));
@@ -240,7 +242,7 @@
     uint64_t eventStartTimeNs = bucketStartTimeNs + 1;
     uint64_t bucketSizeNs = 30 * 1000 * 1000 * 1000LL;
 
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true, bucketStartTimeNs,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true, bucketStartTimeNs,
                                  bucketSizeNs, {});
 
     tracker.noteStart(kEventKey1, true, eventStartTimeNs, key1);
@@ -260,22 +262,22 @@
 
 TEST(OringDurationTrackerTest, TestPredictAnomalyTimestamp) {
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name("1");
+    alert.set_id(101);
+    alert.set_metric_id(1);
     alert.set_trigger_if_sum_gt(40 * NS_PER_SEC);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     alert.set_refractory_period_secs(1);
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
     uint64_t bucketStartTimeNs = 10 * NS_PER_SEC;
     uint64_t eventStartTimeNs = bucketStartTimeNs + NS_PER_SEC + 1;
     uint64_t bucketSizeNs = 30 * NS_PER_SEC;
 
     sp<DurationAnomalyTracker> anomalyTracker = new DurationAnomalyTracker(alert, kConfigKey);
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true, bucketStartTimeNs,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true, bucketStartTimeNs,
                                  bucketSizeNs, {anomalyTracker});
 
     // Nothing in the past bucket.
@@ -322,22 +324,22 @@
 
 TEST(OringDurationTrackerTest, TestAnomalyDetection) {
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name("1");
+    alert.set_id(101);
+    alert.set_metric_id(1);
     alert.set_trigger_if_sum_gt(40 * NS_PER_SEC);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     alert.set_refractory_period_secs(1);
 
     unordered_map<HashableDimensionKey, vector<DurationBucket>> buckets;
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     ConditionKey key1;
-    key1["APP_BACKGROUND"] = kConditionKey1;
+    key1[StringToId("APP_BACKGROUND")] = kConditionKey1;
     uint64_t bucketStartTimeNs = 10 * NS_PER_SEC;
     uint64_t eventStartTimeNs = bucketStartTimeNs + NS_PER_SEC + 1;
     uint64_t bucketSizeNs = 30 * NS_PER_SEC;
 
     sp<DurationAnomalyTracker> anomalyTracker = new DurationAnomalyTracker(alert, kConfigKey);
-    OringDurationTracker tracker(kConfigKey, "metric", eventKey, wizard, 1, true /*nesting*/,
+    OringDurationTracker tracker(kConfigKey, metricId, eventKey, wizard, 1, true /*nesting*/,
                                  bucketStartTimeNs, bucketSizeNs, {anomalyTracker});
 
     tracker.noteStart(DEFAULT_DIMENSION_KEY, true, eventStartTimeNs, key1);
diff --git a/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp b/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
index 12bc834..15acca4 100644
--- a/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
+++ b/cmds/statsd/tests/metrics/ValueMetricProducer_test.cpp
@@ -14,6 +14,7 @@
 
 #include "src/metrics/ValueMetricProducer.h"
 #include "metrics_test_helper.h"
+#include "tests/statsd_test_util.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
@@ -34,9 +35,9 @@
 namespace os {
 namespace statsd {
 
-const ConfigKey kConfigKey(0, "test");
+const ConfigKey kConfigKey(0, 12345);
 const int tagId = 1;
-const string metricName = "test_metric";
+const int64_t metricId = 123;
 const int64_t bucketStartTimeNs = 10000000000;
 const int64_t bucketSizeNs = 60 * 1000 * 1000 * 1000LL;
 const int64_t bucket2StartTimeNs = bucketStartTimeNs + bucketSizeNs;
@@ -48,9 +49,10 @@
  */
 TEST(ValueMetricProducerTest, TestNonDimensionalEvents) {
     ValueMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_value_field(2);
+    metric.mutable_value_field()->set_field(tagId);
+    metric.mutable_value_field()->add_child()->set_field(2);
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     // TODO: pending refactor of StatsPullerManager
@@ -124,10 +126,11 @@
  */
 TEST(ValueMetricProducerTest, TestEventsWithNonSlicedCondition) {
     ValueMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_value_field(2);
-    metric.set_condition("SCREEN_ON");
+    metric.mutable_value_field()->set_field(tagId);
+    metric.mutable_value_field()->add_child()->set_field(2);
+    metric.set_condition(StringToId("SCREEN_ON"));
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     shared_ptr<MockStatsPullerManager> pullerManager =
@@ -200,9 +203,10 @@
 
 TEST(ValueMetricProducerTest, TestPushedEventsWithoutCondition) {
     ValueMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_value_field(2);
+    metric.mutable_value_field()->set_field(tagId);
+    metric.mutable_value_field()->add_child()->set_field(2);
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     shared_ptr<MockStatsPullerManager> pullerManager =
@@ -240,16 +244,17 @@
 
 TEST(ValueMetricProducerTest, TestAnomalyDetection) {
     Alert alert;
-    alert.set_name("alert");
-    alert.set_metric_name(metricName);
+    alert.set_id(101);
+    alert.set_metric_id(metricId);
     alert.set_trigger_if_sum_gt(130);
-    alert.set_number_of_buckets(2);
+    alert.set_num_buckets(2);
     alert.set_refractory_period_secs(3);
 
     ValueMetric metric;
-    metric.set_name(metricName);
+    metric.set_id(metricId);
     metric.mutable_bucket()->set_bucket_size_millis(bucketSizeNs / 1000000);
-    metric.set_value_field(2);
+    metric.mutable_value_field()->set_field(tagId);
+    metric.mutable_value_field()->add_child()->set_field(2);
 
     sp<MockConditionWizard> wizard = new NaggyMock<MockConditionWizard>();
     ValueMetricProducer valueProducer(kConfigKey, metric, -1 /*-1 meaning no condition*/, wizard,
diff --git a/cmds/statsd/tests/statsd_test_util.cpp b/cmds/statsd/tests/statsd_test_util.cpp
index 39e366f..939dc1f 100644
--- a/cmds/statsd/tests/statsd_test_util.cpp
+++ b/cmds/statsd/tests/statsd_test_util.cpp
@@ -22,7 +22,7 @@
 AtomMatcher CreateWakelockStateChangedAtomMatcher(const string& name,
                                                   WakelockStateChanged::State state) {
     AtomMatcher atom_matcher;
-    atom_matcher.set_name(name);
+    atom_matcher.set_id(StringToId(name));
     auto simple_atom_matcher = atom_matcher.mutable_simple_atom_matcher();
     simple_atom_matcher->set_atom_id(android::util::WAKELOCK_STATE_CHANGED);
     auto field_value_matcher = simple_atom_matcher->add_field_value_matcher();
@@ -42,7 +42,7 @@
 AtomMatcher CreateScreenStateChangedAtomMatcher(
     const string& name, ScreenStateChanged::State state) {
     AtomMatcher atom_matcher;
-    atom_matcher.set_name(name);
+    atom_matcher.set_id(StringToId(name));
     auto simple_atom_matcher = atom_matcher.mutable_simple_atom_matcher();
     simple_atom_matcher->set_atom_id(android::util::SCREEN_STATE_CHANGED);
     auto field_value_matcher = simple_atom_matcher->add_field_value_matcher();
@@ -62,7 +62,7 @@
 AtomMatcher CreateSyncStateChangedAtomMatcher(
     const string& name, SyncStateChanged::State state) {
     AtomMatcher atom_matcher;
-    atom_matcher.set_name(name);
+    atom_matcher.set_id(StringToId(name));
     auto simple_atom_matcher = atom_matcher.mutable_simple_atom_matcher();
     simple_atom_matcher->set_atom_id(android::util::SYNC_STATE_CHANGED);
     auto field_value_matcher = simple_atom_matcher->add_field_value_matcher();
@@ -82,7 +82,7 @@
 AtomMatcher CreateActivityForegroundStateChangedAtomMatcher(
     const string& name, ActivityForegroundStateChanged::Activity activity) {
     AtomMatcher atom_matcher;
-    atom_matcher.set_name(name);
+    atom_matcher.set_id(StringToId(name));
     auto simple_atom_matcher = atom_matcher.mutable_simple_atom_matcher();
     simple_atom_matcher->set_atom_id(android::util::ACTIVITY_FOREGROUND_STATE_CHANGED);
     auto field_value_matcher = simple_atom_matcher->add_field_value_matcher();
@@ -104,7 +104,7 @@
 AtomMatcher CreateProcessLifeCycleStateChangedAtomMatcher(
     const string& name, ProcessLifeCycleStateChanged::Event event) {
     AtomMatcher atom_matcher;
-    atom_matcher.set_name(name);
+    atom_matcher.set_id(StringToId(name));
     auto simple_atom_matcher = atom_matcher.mutable_simple_atom_matcher();
     simple_atom_matcher->set_atom_id(android::util::PROCESS_LIFE_CYCLE_STATE_CHANGED);
     auto field_value_matcher = simple_atom_matcher->add_field_value_matcher();
@@ -121,47 +121,47 @@
 
 Predicate CreateScreenIsOnPredicate() {
     Predicate predicate;
-    predicate.set_name("ScreenIsOn");
-    predicate.mutable_simple_predicate()->set_start("ScreenTurnedOn");
-    predicate.mutable_simple_predicate()->set_stop("ScreenTurnedOff");
+    predicate.set_id(StringToId("ScreenIsOn"));
+    predicate.mutable_simple_predicate()->set_start(StringToId("ScreenTurnedOn"));
+    predicate.mutable_simple_predicate()->set_stop(StringToId("ScreenTurnedOff"));
     return predicate;
 }
 
 Predicate CreateScreenIsOffPredicate() {
     Predicate predicate;
-    predicate.set_name("ScreenIsOff");
-    predicate.mutable_simple_predicate()->set_start("ScreenTurnedOff");
-    predicate.mutable_simple_predicate()->set_stop("ScreenTurnedOn");
+    predicate.set_id(StringToId("ScreenIsOff"));
+    predicate.mutable_simple_predicate()->set_start(StringToId("ScreenTurnedOff"));
+    predicate.mutable_simple_predicate()->set_stop(StringToId("ScreenTurnedOn"));
     return predicate;
 }
 
 Predicate CreateHoldingWakelockPredicate() {
     Predicate predicate;
-    predicate.set_name("HoldingWakelock");
-    predicate.mutable_simple_predicate()->set_start("AcquireWakelock");
-    predicate.mutable_simple_predicate()->set_stop("ReleaseWakelock");
+    predicate.set_id(StringToId("HoldingWakelock"));
+    predicate.mutable_simple_predicate()->set_start(StringToId("AcquireWakelock"));
+    predicate.mutable_simple_predicate()->set_stop(StringToId("ReleaseWakelock"));
     return predicate;
 }
 
 Predicate CreateIsSyncingPredicate() {
     Predicate predicate;
-    predicate.set_name("IsSyncing");
-    predicate.mutable_simple_predicate()->set_start("SyncStart");
-    predicate.mutable_simple_predicate()->set_stop("SyncEnd");
+    predicate.set_id(StringToId("IsSyncing"));
+    predicate.mutable_simple_predicate()->set_start(StringToId("SyncStart"));
+    predicate.mutable_simple_predicate()->set_stop(StringToId("SyncEnd"));
     return predicate;
 }
 
 Predicate CreateIsInBackgroundPredicate() {
     Predicate predicate;
-    predicate.set_name("IsInBackground");
-    predicate.mutable_simple_predicate()->set_start("MoveToBackground");
-    predicate.mutable_simple_predicate()->set_stop("MoveToForeground");
+    predicate.set_id(StringToId("IsInBackground"));
+    predicate.mutable_simple_predicate()->set_start(StringToId("MoveToBackground"));
+    predicate.mutable_simple_predicate()->set_stop(StringToId("MoveToForeground"));
     return predicate;
 }
 
 void addPredicateToPredicateCombination(const Predicate& predicate,
                                         Predicate* combinationPredicate) {
-    combinationPredicate->mutable_combination()->add_predicate(predicate.name());
+    combinationPredicate->mutable_combination()->add_predicate(predicate.id());
 }
 
 FieldMatcher CreateAttributionUidDimensions(const int atomId,
@@ -316,6 +316,9 @@
             });
 }
 
+int64_t StringToId(const string& str) {
+    return static_cast<int64_t>(std::hash<std::string>()(str));
+}
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
\ No newline at end of file
diff --git a/cmds/statsd/tests/statsd_test_util.h b/cmds/statsd/tests/statsd_test_util.h
index 282e1b2..5e19da0 100644
--- a/cmds/statsd/tests/statsd_test_util.h
+++ b/cmds/statsd/tests/statsd_test_util.h
@@ -121,6 +121,8 @@
 // Util function to sort the log events by timestamp.
 void sortLogEventsByTimestamp(std::vector<std::unique_ptr<LogEvent>> *events);
 
+int64_t StringToId(const string& str);
+
 }  // namespace statsd
 }  // namespace os
 }  // namespace android
\ No newline at end of file
diff --git a/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/DisplayProtoUtils.java b/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/DisplayProtoUtils.java
index 9294681..93dba71 100644
--- a/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/DisplayProtoUtils.java
+++ b/cmds/statsd/tools/dogfood/src/com/android/statsd/dogfood/DisplayProtoUtils.java
@@ -26,7 +26,7 @@
         sb.append("ConfigKey: ");
         if (reports.hasConfigKey()) {
             com.android.os.StatsLog.ConfigMetricsReportList.ConfigKey key = reports.getConfigKey();
-            sb.append("\tuid: ").append(key.getUid()).append(" name: ").append(key.getName())
+            sb.append("\tuid: ").append(key.getUid()).append(" name: ").append(key.getId())
                     .append("\n");
         }
 
@@ -34,7 +34,7 @@
             sb.append("StatsLogReport size: ").append(report.getMetricsCount()).append("\n");
             for (StatsLog.StatsLogReport log : report.getMetricsList()) {
                 sb.append("\n\n");
-                sb.append("metric id: ").append(log.getMetricName()).append("\n");
+                sb.append("metric id: ").append(log.getMetricId()).append("\n");
                 sb.append("start time:").append(getDateStr(log.getStartReportNanos())).append("\n");
                 sb.append("end time:").append(getDateStr(log.getEndReportNanos())).append("\n");
 
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 137fd4d..119d6f5 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
@@ -34,6 +34,8 @@
 
 public class MainActivity extends Activity {
     private final static String TAG = "StatsdDogfood";
+    private final static long CONFIG_ID = 987654321;
+
 
     final int[] mUids = {11111111, 2222222};
     StatsManager mStatsManager;
@@ -163,7 +165,7 @@
                     return;
                 }
                 if (mStatsManager != null) {
-                    byte[] data = mStatsManager.getData("fake");
+                    byte[] data = mStatsManager.getData(CONFIG_ID);
                     if (data != null) {
                         displayData(data);
                     } else {
@@ -186,7 +188,7 @@
                     byte[] config = new byte[inputStream.available()];
                     inputStream.read(config);
                     if (mStatsManager != null) {
-                        if (mStatsManager.addConfiguration("fake",
+                        if (mStatsManager.addConfiguration(CONFIG_ID,
                                 config, getPackageName(), MainActivity.this.getClass().getName())) {
                             Toast.makeText(
                                     MainActivity.this, "Config pushed", Toast.LENGTH_LONG).show();
diff --git a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ConfigFactory.java b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ConfigFactory.java
index f516477..4bd2844 100644
--- a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ConfigFactory.java
+++ b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ConfigFactory.java
@@ -41,7 +41,7 @@
  * Creates StatsdConfig protos for loadtesting.
  */
 public class ConfigFactory {
-    public static final String CONFIG_NAME = "LOADTEST";
+    public static final long CONFIG_ID = 123456789;
 
     private static final String TAG = "loadtest.ConfigFactory";
 
@@ -86,7 +86,7 @@
                           boolean includeDuration, boolean includeEvent, boolean includeValue,
                           boolean includeGauge) {
         StatsdConfig.Builder config = StatsdConfig.newBuilder()
-            .setName(CONFIG_NAME);
+            .setId(CONFIG_ID);
         if (placebo) {
           replication = 0;  // Config will be empty, aside from a name.
         }
@@ -160,7 +160,7 @@
      */
     private void addEventMetric(EventMetric template, int suffix, StatsdConfig.Builder config) {
         EventMetric.Builder metric = template.toBuilder()
-            .setName(template.getName() + suffix)
+            .setId(template.getId() + suffix)
             .setWhat(template.getWhat() + suffix);
         if (template.hasCondition()) {
             metric.setCondition(template.getCondition() + suffix);
@@ -186,7 +186,7 @@
     private void addCountMetric(CountMetric template, int suffix, long bucketMillis,
         StatsdConfig.Builder config) {
         CountMetric.Builder metric = template.toBuilder()
-            .setName(template.getName() + suffix)
+            .setId(template.getId() + suffix)
             .setWhat(template.getWhat() + suffix);
         if (template.hasCondition()) {
             metric.setCondition(template.getCondition() + suffix);
@@ -207,7 +207,7 @@
     private void addDurationMetric(DurationMetric template, int suffix, long bucketMillis,
         StatsdConfig.Builder config) {
         DurationMetric.Builder metric = template.toBuilder()
-            .setName(template.getName() + suffix)
+            .setId(template.getId() + suffix)
             .setWhat(template.getWhat() + suffix);
         if (template.hasCondition()) {
             metric.setCondition(template.getCondition() + suffix);
@@ -228,7 +228,7 @@
     private void addGaugeMetric(GaugeMetric template, int suffix, long bucketMillis,
         StatsdConfig.Builder config) {
         GaugeMetric.Builder metric = template.toBuilder()
-            .setName(template.getName() + suffix)
+            .setId(template.getId() + suffix)
             .setWhat(template.getWhat() + suffix);
         if (template.hasCondition()) {
             metric.setCondition(template.getCondition() + suffix);
@@ -249,7 +249,7 @@
     private void addValueMetric(ValueMetric template, int suffix, long bucketMillis,
         StatsdConfig.Builder config) {
         ValueMetric.Builder metric = template.toBuilder()
-            .setName(template.getName() + suffix)
+            .setId(template.getId() + suffix)
             .setWhat(template.getWhat() + suffix);
         if (template.hasCondition()) {
             metric.setCondition(template.getCondition() + suffix);
@@ -269,11 +269,11 @@
      */
     private void addPredicate(Predicate template, int suffix, StatsdConfig.Builder config) {
         Predicate.Builder predicate = template.toBuilder()
-            .setName(template.getName() + suffix);
+            .setId(template.getId() + suffix);
         if (template.hasCombination()) {
             Predicate.Combination.Builder cb = template.getCombination().toBuilder()
                 .clearPredicate();
-            for (String child : template.getCombination().getPredicateList()) {
+            for (long child : template.getCombination().getPredicateList()) {
                 cb.addPredicate(child + suffix);
             }
             predicate.setCombination(cb.build());
@@ -296,11 +296,11 @@
      */
     private void addMatcher(AtomMatcher template, int suffix, StatsdConfig.Builder config) {
         AtomMatcher.Builder matcher = template.toBuilder()
-            .setName(template.getName() + suffix);
+            .setId(template.getId() + suffix);
         if (template.hasCombination()) {
             AtomMatcher.Combination.Builder cb = template.getCombination().toBuilder()
                 .clearMatcher();
-            for (String child : template.getCombination().getMatcherList()) {
+            for (long child : template.getCombination().getMatcherList()) {
                 cb.addMatcher(child + suffix);
             }
             matcher.setCombination(cb);
diff --git a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/DisplayProtoUtils.java b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/DisplayProtoUtils.java
index ba43d57..19087d8 100644
--- a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/DisplayProtoUtils.java
+++ b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/DisplayProtoUtils.java
@@ -26,7 +26,7 @@
         sb.append("ConfigKey: ");
         if (reports.hasConfigKey()) {
             com.android.os.StatsLog.ConfigMetricsReportList.ConfigKey key = reports.getConfigKey();
-            sb.append("\tuid: ").append(key.getUid()).append(" name: ").append(key.getName())
+            sb.append("\tuid: ").append(key.getUid()).append(" id: ").append(key.getId())
                     .append("\n");
         }
 
@@ -34,7 +34,7 @@
             sb.append("StatsLogReport size: ").append(report.getMetricsCount()).append("\n");
             for (StatsLog.StatsLogReport log : report.getMetricsList()) {
                 sb.append("\n\n");
-                sb.append("metric id: ").append(log.getMetricName()).append("\n");
+                sb.append("metric id: ").append(log.getMetricId()).append("\n");
                 sb.append("start time:").append(getDateStr(log.getStartReportNanos())).append("\n");
                 sb.append("end time:").append(getDateStr(log.getEndReportNanos())).append("\n");
 
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 83f4b7b..86da16c 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
@@ -294,7 +294,7 @@
             return null;
         }
         if (mStatsManager != null) {
-            byte[] data = mStatsManager.getData(ConfigFactory.CONFIG_NAME);
+            byte[] data = mStatsManager.getData(ConfigFactory.CONFIG_ID);
             if (data != null) {
                 ConfigMetricsReportList reports = null;
                 try {
@@ -453,7 +453,7 @@
         // TODO: Clear all configs instead of specific ones.
         if (mStatsManager != null) {
             if (mStarted) {
-                if (!mStatsManager.removeConfiguration(ConfigFactory.CONFIG_NAME)) {
+                if (!mStatsManager.removeConfiguration(ConfigFactory.CONFIG_ID)) {
                     Log.d(TAG, "Removed loadtest statsd configs.");
                 } else {
                     Log.d(TAG, "Failed to remove loadtest configs.");
@@ -464,7 +464,7 @@
 
     private boolean setConfig(byte[] config) {
       if (mStatsManager != null) {
-            if (mStatsManager.addConfiguration(ConfigFactory.CONFIG_NAME,
+            if (mStatsManager.addConfiguration(ConfigFactory.CONFIG_ID,
                 config, getPackageName(), LoadtestActivity.this.getClass().getName())) {
                 Log.d(TAG, "Config pushed to statsd");
                 return true;
diff --git a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ValidationRecorder.java b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ValidationRecorder.java
index 4b614aa..d122654 100644
--- a/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ValidationRecorder.java
+++ b/cmds/statsd/tools/loadtest/src/com/android/statsd/loadtest/ValidationRecorder.java
@@ -59,18 +59,8 @@
             Log.d(TAG, "GOT DATA");
             for (ConfigMetricsReport report : reports) {
                 for (StatsLogReport logReport : report.getMetricsList()) {
-                    if (!logReport.hasMetricName()) {
+                    if (!logReport.hasMetricId()) {
                         Log.e(TAG, "Metric missing name.");
-                        continue;
-                    }
-                    String metricName = logReport.getMetricName();
-                    if (metricName.startsWith("EVENT_BATTERY_LEVEL_CHANGES_WHILE_SCREEN_IS_ON_")) {
-                        validateEventBatteryLevelChangesWhileScreenIsOn(logReport);
-                        continue;
-                    }
-                    if (metricName.startsWith("EVENT_BATTERY_LEVEL_CHANGES_")) {
-                        validateEventBatteryLevelChanges(logReport);
-                        continue;
                     }
                 }
             }
@@ -78,7 +68,7 @@
     }
 
     private void validateEventBatteryLevelChanges(StatsLogReport logReport) {
-        Log.d(TAG, "Validating " + logReport.getMetricName());
+        Log.d(TAG, "Validating " + logReport.getMetricId());
         if (logReport.hasEventMetrics()) {
             Log.d(TAG, "Num events captured: " + logReport.getEventMetrics().getDataCount());
             for (EventMetricData data : logReport.getEventMetrics().getDataList()) {
@@ -90,6 +80,6 @@
     }
 
     private void validateEventBatteryLevelChangesWhileScreenIsOn(StatsLogReport logReport) {
-        Log.d(TAG, "Validating " + logReport.getMetricName());
+        Log.d(TAG, "Validating " + logReport.getMetricId());
     }
 }
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index aaa6bf0..de346f3 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -1768,9 +1768,7 @@
                             (String[]) ((SomeArgs) msg.obj).arg2);
                     break;
                 case EXECUTE_TRANSACTION:
-                    final ClientTransaction transaction = (ClientTransaction) msg.obj;
-                    mTransactionExecutor.execute(transaction);
-                    transaction.recycle();
+                    mTransactionExecutor.execute(((ClientTransaction) msg.obj));
                     break;
             }
             Object obj = msg.obj;
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index 7e80ac7..0b74741 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -1668,6 +1668,46 @@
     public static final String ACTION_DEVICE_ADMIN_SERVICE
             = "android.app.action.DEVICE_ADMIN_SERVICE";
 
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, prefix = {"ID_TYPE_"}, value = {
+        ID_TYPE_BASE_INFO,
+        ID_TYPE_SERIAL,
+        ID_TYPE_IMEI,
+        ID_TYPE_MEID
+    })
+    public @interface AttestationIdType {}
+
+    /**
+     * Specifies that the device should attest its manufacturer details. For use with
+     * {@link #generateKeyPair}.
+     *
+     * @see #generateKeyPair
+     */
+    public static final int ID_TYPE_BASE_INFO = 1;
+
+    /**
+     * Specifies that the device should attest its serial number. For use with
+     * {@link #generateKeyPair}.
+     *
+     * @see #generateKeyPair
+     */
+    public static final int ID_TYPE_SERIAL = 2;
+
+    /**
+     * Specifies that the device should attest its IMEI. For use with {@link #generateKeyPair}.
+     *
+     * @see #generateKeyPair
+     */
+    public static final int ID_TYPE_IMEI = 4;
+
+    /**
+     * Specifies that the device should attest its MEID. For use with {@link #generateKeyPair}.
+     *
+     * @see #generateKeyPair
+     */
+    public static final int ID_TYPE_MEID = 8;
+
     /**
      * Return true if the given administrator component is currently active (enabled) in the system.
      *
@@ -4106,22 +4146,46 @@
      * @param algorithm The key generation algorithm, see {@link java.security.KeyPairGenerator}.
      * @param keySpec Specification of the key to generate, see
      * {@link java.security.KeyPairGenerator}.
+     * @param idAttestationFlags A bitmask of all the identifiers that should be included in the
+     *        attestation record ({@code ID_TYPE_BASE_INFO}, {@code ID_TYPE_SERIAL},
+     *        {@code ID_TYPE_IMEI} and {@code ID_TYPE_MEID}), or {@code 0} if no device
+     *        identification is required in the attestation record.
+     *        Device owner, profile owner and their delegated certificate installer can use
+     *        {@link #ID_TYPE_BASE_INFO} to request inclusion of the general device information
+     *        including manufacturer, model, brand, device and product in the attestation record.
+     *        Only device owner and their delegated certificate installer can use
+     *        {@link #ID_TYPE_SERIAL}, {@link #ID_TYPE_IMEI} and {@link #ID_TYPE_MEID} to request
+     *        unique device identifiers to be attested.
+     *        <p>
+     *        If any of {@link #ID_TYPE_SERIAL}, {@link #ID_TYPE_IMEI} and {@link #ID_TYPE_MEID}
+     *        is set, it is implicitly assumed that {@link #ID_TYPE_BASE_INFO} is also set.
+     *        <p>
+     *        If any flag is specified, then an attestation challenge must be included in the
+     *        {@code keySpec}.
      * @return A non-null {@code AttestedKeyPair} if the key generation succeeded, null otherwise.
      * @throws SecurityException if {@code admin} is not {@code null} and not a device or profile
-     *         owner.
-     * @throws IllegalArgumentException if the alias in {@code keySpec} is empty, or if the
+     *         owner. If Device ID attestation is requested (using {@link #ID_TYPE_SERIAL},
+     *         {@link #ID_TYPE_IMEI} or {@link #ID_TYPE_MEID}), the caller must be the Device Owner
+     *         or the Certificate Installer delegate.
+     * @throws IllegalArgumentException if the alias in {@code keySpec} is empty, if the
      *         algorithm specification in {@code keySpec} is not {@code RSAKeyGenParameterSpec}
-     *         or {@code ECGenParameterSpec}.
+     *         or {@code ECGenParameterSpec}, or if Device ID attestation was requested but the
+     *         {@code keySpec} does not contain an attestation challenge.
+     * @see KeyGenParameterSpec.Builder#setAttestationChallenge(byte[])
      */
     public AttestedKeyPair generateKeyPair(@Nullable ComponentName admin,
-            @NonNull String algorithm, @NonNull KeyGenParameterSpec keySpec) {
+            @NonNull String algorithm, @NonNull KeyGenParameterSpec keySpec,
+            @AttestationIdType int idAttestationFlags) {
         throwIfParentInstance("generateKeyPair");
         try {
             final ParcelableKeyGenParameterSpec parcelableSpec =
                     new ParcelableKeyGenParameterSpec(keySpec);
             KeymasterCertificateChain attestationChain = new KeymasterCertificateChain();
+
+            // Translate ID attestation flags to values used by AttestationUtils
             final boolean success = mService.generateKeyPair(
-                    admin, mContext.getPackageName(), algorithm, parcelableSpec, attestationChain);
+                    admin, mContext.getPackageName(), algorithm, parcelableSpec,
+                    idAttestationFlags, attestationChain);
             if (!success) {
                 Log.e(TAG, "Error generating key via DevicePolicyManagerService.");
                 return null;
diff --git a/core/java/android/app/admin/IDevicePolicyManager.aidl b/core/java/android/app/admin/IDevicePolicyManager.aidl
index 7cf19ee..5916a62 100644
--- a/core/java/android/app/admin/IDevicePolicyManager.aidl
+++ b/core/java/android/app/admin/IDevicePolicyManager.aidl
@@ -173,7 +173,7 @@
     boolean removeKeyPair(in ComponentName who, in String callerPackage, String alias);
     boolean generateKeyPair(in ComponentName who, in String callerPackage, in String algorithm,
             in ParcelableKeyGenParameterSpec keySpec,
-            out KeymasterCertificateChain attestationChain);
+            in int idAttestationFlags, out KeymasterCertificateChain attestationChain);
     boolean setKeyPairCertificate(in ComponentName who, in String callerPackage, in String alias,
             in byte[] certBuffer, in byte[] certChainBuffer, boolean isUserSelectable);
     void choosePrivateKeyAlias(int uid, in Uri uri, in String alias, IBinder aliasCallback);
diff --git a/core/java/android/app/assist/AssistStructure.java b/core/java/android/app/assist/AssistStructure.java
index 7b549cd5..87f2271 100644
--- a/core/java/android/app/assist/AssistStructure.java
+++ b/core/java/android/app/assist/AssistStructure.java
@@ -32,6 +32,8 @@
 import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillValue;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
@@ -624,6 +626,7 @@
         int mMinEms = -1;
         int mMaxEms = -1;
         int mMaxLength = -1;
+        @Nullable String mTextIdEntry;
 
         // POJO used to override some autofill-related values when the node is parcelized.
         // Not written to parcel.
@@ -701,7 +704,7 @@
             final int flags = mFlags;
             if ((flags&FLAGS_HAS_ID) != 0) {
                 mId = in.readInt();
-                if (mId != 0) {
+                if (mId != View.NO_ID) {
                     mIdEntry = preader.readString();
                     if (mIdEntry != null) {
                         mIdType = preader.readString();
@@ -724,6 +727,7 @@
                 mMinEms = in.readInt();
                 mMaxEms = in.readInt();
                 mMaxLength = in.readInt();
+                mTextIdEntry = preader.readString();
             }
             if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
                 mX = in.readInt();
@@ -857,7 +861,7 @@
             out.writeInt(writtenFlags);
             if ((flags&FLAGS_HAS_ID) != 0) {
                 out.writeInt(mId);
-                if (mId != 0) {
+                if (mId != View.NO_ID) {
                     pwriter.writeString(mIdEntry);
                     if (mIdEntry != null) {
                         pwriter.writeString(mIdType);
@@ -890,6 +894,7 @@
                 out.writeInt(mMinEms);
                 out.writeInt(mMaxEms);
                 out.writeInt(mMaxLength);
+                pwriter.writeString(mTextIdEntry);
             }
             if ((flags&FLAGS_HAS_LARGE_COORDS) != 0) {
                 out.writeInt(mX);
@@ -1430,6 +1435,17 @@
         }
 
         /**
+         * Gets the identifier used to set the text associated with this view.
+         *
+         * <p>It's only relevant when the {@link AssistStructure} is used for autofill purposes,
+         * not for assist purposes.
+         */
+        @Nullable
+        public String getTextIdEntry() {
+            return mTextIdEntry;
+        }
+
+        /**
          * Return additional hint text associated with the node; this is typically used with
          * a node that takes user input, describing to the user what the input means.
          */
@@ -1684,6 +1700,11 @@
         }
 
         @Override
+        public void setTextIdEntry(@NonNull String entryName) {
+            mNode.mTextIdEntry = Preconditions.checkNotNull(entryName);
+        }
+
+        @Override
         public void setHint(CharSequence hint) {
             getNodeText().mHint = hint != null ? hint.toString() : null;
         }
@@ -2082,6 +2103,7 @@
             Log.i(TAG, prefix + "  Text color fg: #" + Integer.toHexString(node.getTextColor())
                     + ", bg: #" + Integer.toHexString(node.getTextBackgroundColor()));
             Log.i(TAG, prefix + "  Input type: " + node.getInputType());
+            Log.i(TAG, prefix + "  Resource id: " + node.getTextIdEntry());
         }
         String webDomain = node.getWebDomain();
         if (webDomain != null) {
diff --git a/core/java/android/app/servertransaction/ClientTransaction.java b/core/java/android/app/servertransaction/ClientTransaction.java
index 3c96f06..764ceed 100644
--- a/core/java/android/app/servertransaction/ClientTransaction.java
+++ b/core/java/android/app/servertransaction/ClientTransaction.java
@@ -54,11 +54,6 @@
     /** Target client activity. Might be null if the entire transaction is targeting an app. */
     private IBinder mActivityToken;
 
-    /** Get the target client of the transaction. */
-    public IApplicationThread getClient() {
-        return mClient;
-    }
-
     /**
      * Add a message to the end of the sequence of callbacks.
      * @param activityCallback A single message that can contain a lifecycle request/callback.
diff --git a/core/java/android/app/servertransaction/ObjectPool.java b/core/java/android/app/servertransaction/ObjectPool.java
index 2fec30a..9812125 100644
--- a/core/java/android/app/servertransaction/ObjectPool.java
+++ b/core/java/android/app/servertransaction/ObjectPool.java
@@ -16,8 +16,8 @@
 
 package android.app.servertransaction;
 
-import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.LinkedList;
 import java.util.Map;
 
 /**
@@ -27,7 +27,7 @@
 class ObjectPool {
 
     private static final Object sPoolSync = new Object();
-    private static final Map<Class, ArrayList<? extends ObjectPoolItem>> sPoolMap =
+    private static final Map<Class, LinkedList<? extends ObjectPoolItem>> sPoolMap =
             new HashMap<>();
 
     private static final int MAX_POOL_SIZE = 50;
@@ -40,9 +40,9 @@
     public static <T extends ObjectPoolItem> T obtain(Class<T> itemClass) {
         synchronized (sPoolSync) {
             @SuppressWarnings("unchecked")
-            final ArrayList<T> itemPool = (ArrayList<T>) sPoolMap.get(itemClass);
+            LinkedList<T> itemPool = (LinkedList<T>) sPoolMap.get(itemClass);
             if (itemPool != null && !itemPool.isEmpty()) {
-                return itemPool.remove(itemPool.size() - 1);
+                return itemPool.poll();
             }
             return null;
         }
@@ -56,20 +56,16 @@
     public static <T extends ObjectPoolItem> void recycle(T item) {
         synchronized (sPoolSync) {
             @SuppressWarnings("unchecked")
-            ArrayList<T> itemPool = (ArrayList<T>) sPoolMap.get(item.getClass());
+            LinkedList<T> itemPool = (LinkedList<T>) sPoolMap.get(item.getClass());
             if (itemPool == null) {
-                itemPool = new ArrayList<>();
+                itemPool = new LinkedList<>();
                 sPoolMap.put(item.getClass(), itemPool);
             }
-            // Check if the item is already in the pool
-            final int size = itemPool.size();
-            for (int i = 0; i < size; i++) {
-                if (itemPool.get(i) == item) {
-                    throw new IllegalStateException("Trying to recycle already recycled item");
-                }
+            if (itemPool.contains(item)) {
+                throw new IllegalStateException("Trying to recycle already recycled item");
             }
 
-            if (size < MAX_POOL_SIZE) {
+            if (itemPool.size() < MAX_POOL_SIZE) {
                 itemPool.add(item);
             }
         }
diff --git a/core/java/android/hardware/display/BrightnessChangeEvent.java b/core/java/android/hardware/display/BrightnessChangeEvent.java
index 3003607..0a08353 100644
--- a/core/java/android/hardware/display/BrightnessChangeEvent.java
+++ b/core/java/android/hardware/display/BrightnessChangeEvent.java
@@ -28,7 +28,7 @@
  */
 public final class BrightnessChangeEvent implements Parcelable {
     /** Brightness in nits */
-    public int brightness;
+    public float brightness;
 
     /** Timestamp of the change {@see System.currentTimeMillis()} */
     public long timeStamp;
@@ -58,7 +58,7 @@
     public int colorTemperature;
 
     /** Brightness level before slider adjustment */
-    public int lastBrightness;
+    public float lastBrightness;
 
     public BrightnessChangeEvent() {
     }
@@ -78,7 +78,7 @@
     }
 
     private BrightnessChangeEvent(Parcel source) {
-        brightness = source.readInt();
+        brightness = source.readFloat();
         timeStamp = source.readLong();
         packageName = source.readString();
         userId = source.readInt();
@@ -87,7 +87,7 @@
         batteryLevel = source.readFloat();
         nightMode = source.readBoolean();
         colorTemperature = source.readInt();
-        lastBrightness = source.readInt();
+        lastBrightness = source.readFloat();
     }
 
     public static final Creator<BrightnessChangeEvent> CREATOR =
@@ -107,7 +107,7 @@
 
     @Override
     public void writeToParcel(Parcel dest, int flags) {
-        dest.writeInt(brightness);
+        dest.writeFloat(brightness);
         dest.writeLong(timeStamp);
         dest.writeString(packageName);
         dest.writeInt(userId);
@@ -116,6 +116,6 @@
         dest.writeFloat(batteryLevel);
         dest.writeBoolean(nightMode);
         dest.writeInt(colorTemperature);
-        dest.writeInt(lastBrightness);
+        dest.writeFloat(lastBrightness);
     }
 }
diff --git a/core/java/android/hardware/display/DisplayManager.java b/core/java/android/hardware/display/DisplayManager.java
index 7de667d..97e9b9c 100644
--- a/core/java/android/hardware/display/DisplayManager.java
+++ b/core/java/android/hardware/display/DisplayManager.java
@@ -628,13 +628,6 @@
     }
 
     /**
-     * @hide STOPSHIP - remove when adaptive brightness accepts curves.
-     */
-    public void setBrightness(int brightness) {
-        mGlobal.setBrightness(brightness);
-    }
-
-    /**
      * Sets the global display brightness configuration.
      *
      * @hide
diff --git a/core/java/android/hardware/display/DisplayManagerGlobal.java b/core/java/android/hardware/display/DisplayManagerGlobal.java
index bf4cc1d..cbb5a7d 100644
--- a/core/java/android/hardware/display/DisplayManagerGlobal.java
+++ b/core/java/android/hardware/display/DisplayManagerGlobal.java
@@ -476,18 +476,6 @@
     }
 
     /**
-     * Set brightness but don't add a BrightnessChangeEvent
-     * STOPSHIP remove when adaptive brightness accepts curves.
-     */
-    public void setBrightness(int brightness) {
-        try {
-            mDm.setBrightness(brightness);
-        } catch (RemoteException ex) {
-            throw ex.rethrowFromSystemServer();
-        }
-    }
-
-    /**
      * Sets the global brightness configuration for a given user.
      *
      * @hide
diff --git a/core/java/android/hardware/display/DisplayManagerInternal.java b/core/java/android/hardware/display/DisplayManagerInternal.java
index cd551bd..3f6dd2e 100644
--- a/core/java/android/hardware/display/DisplayManagerInternal.java
+++ b/core/java/android/hardware/display/DisplayManagerInternal.java
@@ -222,6 +222,11 @@
         // 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;
+
         // If true, enables automatic brightness control.
         public boolean useAutoBrightness;
 
@@ -280,6 +285,7 @@
             screenAutoBrightnessAdjustment = other.screenAutoBrightnessAdjustment;
             screenLowPowerBrightnessFactor = other.screenLowPowerBrightnessFactor;
             brightnessSetByUser = other.brightnessSetByUser;
+            brightnessIsTemporary = other.brightnessIsTemporary;
             useAutoBrightness = other.useAutoBrightness;
             blockScreenOn = other.blockScreenOn;
             lowPowerMode = other.lowPowerMode;
@@ -303,6 +309,7 @@
                     && screenLowPowerBrightnessFactor
                     == other.screenLowPowerBrightnessFactor
                     && brightnessSetByUser == other.brightnessSetByUser
+                    && brightnessIsTemporary == other.brightnessIsTemporary
                     && useAutoBrightness == other.useAutoBrightness
                     && blockScreenOn == other.blockScreenOn
                     && lowPowerMode == other.lowPowerMode
@@ -324,6 +331,7 @@
                     + ", screenAutoBrightnessAdjustment=" + screenAutoBrightnessAdjustment
                     + ", screenLowPowerBrightnessFactor=" + screenLowPowerBrightnessFactor
                     + ", brightnessSetByUser=" + brightnessSetByUser
+                    + ", brightnessIsTemporary=" + brightnessIsTemporary
                     + ", useAutoBrightness=" + useAutoBrightness
                     + ", blockScreenOn=" + blockScreenOn
                     + ", lowPowerMode=" + lowPowerMode
diff --git a/core/java/android/hardware/display/IDisplayManager.aidl b/core/java/android/hardware/display/IDisplayManager.aidl
index 8afae6e..61c42e1 100644
--- a/core/java/android/hardware/display/IDisplayManager.aidl
+++ b/core/java/android/hardware/display/IDisplayManager.aidl
@@ -87,10 +87,6 @@
     // Requires BRIGHTNESS_SLIDER_USAGE permission.
     ParceledListSlice getBrightnessEvents(String callingPackage);
 
-    // STOPSHIP remove when adaptive brightness code is updated to accept curves.
-    // Requires BRIGHTNESS_SLIDER_USAGE permission.
-    void setBrightness(int brightness);
-
     // Sets the global brightness configuration for a given user. Requires
     // CONFIGURE_DISPLAY_BRIGHTNESS, and INTERACT_ACROSS_USER if the user being configured is not
     // the same as the calling user.
diff --git a/core/java/android/hardware/location/ContextHubClient.java b/core/java/android/hardware/location/ContextHubClient.java
index 52527ed..0a21083 100644
--- a/core/java/android/hardware/location/ContextHubClient.java
+++ b/core/java/android/hardware/location/ContextHubClient.java
@@ -15,9 +15,13 @@
  */
 package android.hardware.location;
 
+import android.annotation.NonNull;
 import android.annotation.RequiresPermission;
+import android.annotation.SystemApi;
 import android.os.RemoteException;
 
+import com.android.internal.util.Preconditions;
+
 import dalvik.system.CloseGuard;
 
 import java.io.Closeable;
@@ -31,16 +35,12 @@
  *
  * @hide
  */
+@SystemApi
 public class ContextHubClient implements Closeable {
     /*
      * The proxy to the client interface at the service.
      */
-    private final IContextHubClient mClientProxy;
-
-    /*
-     * The callback interface associated with this client.
-     */
-    private final IContextHubClientCallback mCallbackInterface;
+    private IContextHubClient mClientProxy = null;
 
     /*
      * The Context Hub that this client is attached to.
@@ -51,20 +51,33 @@
 
     private final AtomicBoolean mIsClosed = new AtomicBoolean(false);
 
-    /* package */ ContextHubClient(
-            IContextHubClient clientProxy, IContextHubClientCallback callback,
-            ContextHubInfo hubInfo) {
-        mClientProxy = clientProxy;
-        mCallbackInterface = callback;
+    /* package */ ContextHubClient(ContextHubInfo hubInfo) {
         mAttachedHub = hubInfo;
         mCloseGuard.open("close");
     }
 
     /**
+     * Sets the proxy interface of the client at the service. This method should always be called
+     * by the ContextHubManager after the client is registered at the service, and should only be
+     * called once.
+     *
+     * @param clientProxy the proxy of the client at the service
+     */
+    /* package */ void setClientProxy(IContextHubClient clientProxy) {
+        Preconditions.checkNotNull(clientProxy, "IContextHubClient cannot be null");
+        if (mClientProxy != null) {
+            throw new IllegalStateException("Cannot change client proxy multiple times");
+        }
+
+        mClientProxy = clientProxy;
+    }
+
+    /**
      * Returns the hub that this client is attached to.
      *
      * @return the ContextHubInfo of the attached hub
      */
+    @NonNull
     public ContextHubInfo getAttachedHub() {
         return mAttachedHub;
     }
@@ -96,12 +109,16 @@
      *
      * @return the result of sending the message defined as in ContextHubTransaction.Result
      *
+     * @throws NullPointerException if NanoAppMessage is null
+     *
      * @see NanoAppMessage
      * @see ContextHubTransaction.Result
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
     @ContextHubTransaction.Result
-    public int sendMessageToNanoApp(NanoAppMessage message) {
+    public int sendMessageToNanoApp(@NonNull NanoAppMessage message) {
+        Preconditions.checkNotNull(message, "NanoAppMessage cannot be null");
+
         try {
             return mClientProxy.sendMessageToNanoApp(message);
         } catch (RemoteException e) {
diff --git a/core/java/android/hardware/location/ContextHubClientCallback.java b/core/java/android/hardware/location/ContextHubClientCallback.java
index ab19d54..cc2fe65 100644
--- a/core/java/android/hardware/location/ContextHubClientCallback.java
+++ b/core/java/android/hardware/location/ContextHubClientCallback.java
@@ -15,15 +15,20 @@
  */
 package android.hardware.location;
 
+import android.annotation.SystemApi;
+
+import java.util.concurrent.Executor;
+
 /**
  * A class for {@link android.hardware.location.ContextHubClient ContextHubClient} to
  * receive messages and life-cycle events from nanoapps in the Context Hub at which the client is
  * attached to.
  *
- * This callback is registered through the
- * {@link android.hardware.location.ContextHubManager#createClient() creation} of
- * {@link android.hardware.location.ContextHubClient ContextHubClient}. Callbacks are
- * invoked in the following ways:
+ * This callback is registered through the {@link
+ * android.hardware.location.ContextHubManager#createClient(
+ * ContextHubInfo, ContextHubClientCallback, Executor) creation} of
+ * {@link android.hardware.location.ContextHubClient ContextHubClient}. Callbacks are invoked in
+ * the following ways:
  * 1) Messages from nanoapps delivered through onMessageFromNanoApp may either be broadcasted
  *    or targeted to a specific client.
  * 2) Nanoapp or Context Hub events (the remaining callbacks) are broadcasted to all clients, and
@@ -31,6 +36,7 @@
  *
  * @hide
  */
+@SystemApi
 public class ContextHubClientCallback {
     /**
      * Callback invoked when receiving a message from a nanoapp.
@@ -38,48 +44,56 @@
      * The message contents of this callback may either be broadcasted or targeted to the
      * client receiving the invocation.
      *
+     * @param client the client that is associated with this callback
      * @param message the message sent by the nanoapp
      */
-    public void onMessageFromNanoApp(NanoAppMessage message) {}
+    public void onMessageFromNanoApp(ContextHubClient client, NanoAppMessage message) {}
 
     /**
      * Callback invoked when the attached Context Hub has reset.
+     *
+     * @param client the client that is associated with this callback
      */
-    public void onHubReset() {}
+    public void onHubReset(ContextHubClient client) {}
 
     /**
      * Callback invoked when a nanoapp aborts at the attached Context Hub.
      *
+     * @param client the client that is associated with this callback
      * @param nanoAppId the ID of the nanoapp that had aborted
      * @param abortCode the reason for nanoapp's abort, specific to each nanoapp
      */
-    public void onNanoAppAborted(long nanoAppId, int abortCode) {}
+    public void onNanoAppAborted(ContextHubClient client, long nanoAppId, int abortCode) {}
 
     /**
      * Callback invoked when a nanoapp is loaded at the attached Context Hub.
      *
+     * @param client the client that is associated with this callback
      * @param nanoAppId the ID of the nanoapp that had been loaded
      */
-    public void onNanoAppLoaded(long nanoAppId) {}
+    public void onNanoAppLoaded(ContextHubClient client, long nanoAppId) {}
 
     /**
      * Callback invoked when a nanoapp is unloaded from the attached Context Hub.
      *
+     * @param client the client that is associated with this callback
      * @param nanoAppId the ID of the nanoapp that had been unloaded
      */
-    public void onNanoAppUnloaded(long nanoAppId) {}
+    public void onNanoAppUnloaded(ContextHubClient client, long nanoAppId) {}
 
     /**
      * Callback invoked when a nanoapp is enabled at the attached Context Hub.
      *
+     * @param client the client that is associated with this callback
      * @param nanoAppId the ID of the nanoapp that had been enabled
      */
-    public void onNanoAppEnabled(long nanoAppId) {}
+    public void onNanoAppEnabled(ContextHubClient client, long nanoAppId) {}
 
     /**
      * Callback invoked when a nanoapp is disabled at the attached Context Hub.
      *
+     * @param client the client that is associated with this callback
      * @param nanoAppId the ID of the nanoapp that had been disabled
      */
-    public void onNanoAppDisabled(long nanoAppId) {}
+    public void onNanoAppDisabled(ContextHubClient client, long nanoAppId) {}
 }
diff --git a/core/java/android/hardware/location/ContextHubInfo.java b/core/java/android/hardware/location/ContextHubInfo.java
index c2b2800..36123e3 100644
--- a/core/java/android/hardware/location/ContextHubInfo.java
+++ b/core/java/android/hardware/location/ContextHubInfo.java
@@ -221,9 +221,6 @@
 
     /**
      * @return the CHRE platform ID as defined in chre/version.h
-     *
-     * TODO(b/67734082): Expose as public API
-     * @hide
      */
     public long getChrePlatformId() {
         return mChrePlatformId;
@@ -231,9 +228,6 @@
 
     /**
      * @return the CHRE API's major version as defined in chre/version.h
-     *
-     * TODO(b/67734082): Expose as public API
-     * @hide
      */
     public byte getChreApiMajorVersion() {
         return mChreApiMajorVersion;
@@ -241,9 +235,6 @@
 
     /**
      * @return the CHRE API's minor version as defined in chre/version.h
-     *
-     * TODO(b/67734082): Expose as public API
-     * @hide
      */
     public byte getChreApiMinorVersion() {
         return mChreApiMinorVersion;
@@ -251,9 +242,6 @@
 
     /**
      * @return the CHRE patch version as defined in chre/version.h
-     *
-     * TODO(b/67734082): Expose as public API
-     * @hide
      */
     public short getChrePatchVersion() {
         return mChrePatchVersion;
diff --git a/core/java/android/hardware/location/ContextHubManager.java b/core/java/android/hardware/location/ContextHubManager.java
index 4cea0ac..be1efde 100644
--- a/core/java/android/hardware/location/ContextHubManager.java
+++ b/core/java/android/hardware/location/ContextHubManager.java
@@ -17,6 +17,7 @@
 
 import android.annotation.CallbackExecutor;
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
@@ -30,6 +31,8 @@
 import android.os.ServiceManager.ServiceNotFoundException;
 import android.util.Log;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.List;
 import java.util.concurrent.Executor;
 
@@ -59,7 +62,11 @@
 
     /**
      * An interface to receive asynchronous communication from the context hub.
+     *
+     * @deprecated Use the more refined {@link android.hardware.location.ContextHubClientCallback}
+     *             instead for notification callbacks.
      */
+    @Deprecated
     public abstract static class Callback {
         protected Callback() {}
 
@@ -75,7 +82,7 @@
         public abstract void onMessageReceipt(
                 int hubHandle,
                 int nanoAppHandle,
-                ContextHubMessage message);
+                @NonNull ContextHubMessage message);
     }
 
     /**
@@ -98,8 +105,13 @@
 
     /**
      * Get a handle to all the context hubs in the system
+     *
      * @return array of context hub handles
+     *
+     * @deprecated Use {@link #getContextHubs()} instead. The use of handles are deprecated in the
+     *             new APIs.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
     public int[] getContextHubHandles() {
         try {
@@ -116,7 +128,11 @@
      * @return ContextHubInfo Information about the requested context hub.
      *
      * @see ContextHubInfo
+     *
+     * @deprecated Use {@link #getContextHubs()} instead. The use of handles are deprecated in the
+     *             new APIs.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
     public ContextHubInfo getContextHubInfo(int hubHandle) {
         try {
@@ -144,9 +160,12 @@
      *         -1 otherwise
      *
      * @see NanoApp
+     *
+     * @deprecated Use {@link #loadNanoApp(ContextHubInfo, NanoAppBinary)} instead.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public int loadNanoApp(int hubHandle, NanoApp app) {
+    public int loadNanoApp(int hubHandle, @NonNull NanoApp app) {
         try {
             return mService.loadNanoApp(hubHandle, app);
         } catch (RemoteException e) {
@@ -168,7 +187,10 @@
      *
      * @return 0 if the command for unloading was sent to the context hub;
      *         -1 otherwise
+     *
+     * @deprecated Use {@link #unloadNanoApp(ContextHubInfo, long)} instead.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
     public int unloadNanoApp(int nanoAppHandle) {
         try {
@@ -199,13 +221,18 @@
      * TODO(b/30943489): Have the returned NanoAppInstanceInfo contain the
      *     correct information.
      *
-     * @param nanoAppHandle handle of the nanoAppInstance
-     * @return NanoAppInstanceInfo Information about the nano app instance.
+     * @param nanoAppHandle handle of the nanoapp instance
+     * @return NanoAppInstanceInfo the NanoAppInstanceInfo of the nanoapp, or null if the nanoapp
+     *                             does not exist
      *
      * @see NanoAppInstanceInfo
+     *
+     * @deprecated Use {@link #queryNanoApps(ContextHubInfo)} instead to explicitly query the hub
+     *             for loaded nanoapps.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public NanoAppInstanceInfo getNanoAppInstanceInfo(int nanoAppHandle) {
+    @Nullable public NanoAppInstanceInfo getNanoAppInstanceInfo(int nanoAppHandle) {
         try {
             return mService.getNanoAppInstanceInfo(nanoAppHandle);
         } catch (RemoteException e) {
@@ -222,9 +249,13 @@
      * @see NanoAppFilter
      *
      * @return int[] Array of handles to any found nano apps
+     *
+     * @deprecated Use {@link #queryNanoApps(ContextHubInfo)} instead to explicitly query the hub
+     *             for loaded nanoapps.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public int[] findNanoAppOnHub(int hubHandle, NanoAppFilter filter) {
+    @NonNull public int[] findNanoAppOnHub(int hubHandle, @NonNull NanoAppFilter filter) {
         try {
             return mService.findNanoAppOnHub(hubHandle, filter);
         } catch (RemoteException e) {
@@ -250,9 +281,16 @@
      * @see ContextHubMessage
      *
      * @return int 0 on success, -1 otherwise
+     *
+     * @deprecated Use {@link android.hardware.location.ContextHubClient#sendMessageToNanoApp(
+     *             NanoAppMessage)} instead, after creating a
+     *             {@link android.hardware.location.ContextHubClient} with
+     *             {@link #createClient(ContextHubInfo, ContextHubClientCallback, Executor)}
+     *             or {@link #createClient(ContextHubInfo, ContextHubClientCallback)}.
      */
+    @Deprecated
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public int sendMessage(int hubHandle, int nanoAppHandle, ContextHubMessage message) {
+    public int sendMessage(int hubHandle, int nanoAppHandle, @NonNull ContextHubMessage message) {
         try {
             return mService.sendMessage(hubHandle, nanoAppHandle, message);
         } catch (RemoteException e) {
@@ -266,11 +304,9 @@
      * @return the list of ContextHubInfo objects
      *
      * @see ContextHubInfo
-     *
-     * @hide
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public List<ContextHubInfo> getContextHubs() {
+    @NonNull public List<ContextHubInfo> getContextHubs() {
         try {
             return mService.getContextHubs();
         } catch (RemoteException e) {
@@ -342,13 +378,16 @@
      *
      * @return the ContextHubTransaction of the request
      *
-     * @see NanoAppBinary
+     * @throws NullPointerException if hubInfo or NanoAppBinary is null
      *
-     * @hide
+     * @see NanoAppBinary
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public ContextHubTransaction<Void> loadNanoApp(
-            ContextHubInfo hubInfo, NanoAppBinary appBinary) {
+    @NonNull public ContextHubTransaction<Void> loadNanoApp(
+            @NonNull ContextHubInfo hubInfo, @NonNull NanoAppBinary appBinary) {
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+        Preconditions.checkNotNull(appBinary, "NanoAppBinary cannot be null");
+
         ContextHubTransaction<Void> transaction =
                 new ContextHubTransaction<>(ContextHubTransaction.TYPE_LOAD_NANOAPP);
         IContextHubTransactionCallback callback = createTransactionCallback(transaction);
@@ -370,10 +409,13 @@
      *
      * @return the ContextHubTransaction of the request
      *
-     * @hide
+     * @throws NullPointerException if hubInfo is null
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public ContextHubTransaction<Void> unloadNanoApp(ContextHubInfo hubInfo, long nanoAppId) {
+    @NonNull public ContextHubTransaction<Void> unloadNanoApp(
+            @NonNull ContextHubInfo hubInfo, long nanoAppId) {
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+
         ContextHubTransaction<Void> transaction =
                 new ContextHubTransaction<>(ContextHubTransaction.TYPE_UNLOAD_NANOAPP);
         IContextHubTransactionCallback callback = createTransactionCallback(transaction);
@@ -395,10 +437,13 @@
      *
      * @return the ContextHubTransaction of the request
      *
-     * @hide
+     * @throws NullPointerException if hubInfo is null
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public ContextHubTransaction<Void> enableNanoApp(ContextHubInfo hubInfo, long nanoAppId) {
+    @NonNull public ContextHubTransaction<Void> enableNanoApp(
+            @NonNull ContextHubInfo hubInfo, long nanoAppId) {
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+
         ContextHubTransaction<Void> transaction =
                 new ContextHubTransaction<>(ContextHubTransaction.TYPE_ENABLE_NANOAPP);
         IContextHubTransactionCallback callback = createTransactionCallback(transaction);
@@ -420,10 +465,13 @@
      *
      * @return the ContextHubTransaction of the request
      *
-     * @hide
+     * @throws NullPointerException if hubInfo is null
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public ContextHubTransaction<Void> disableNanoApp(ContextHubInfo hubInfo, long nanoAppId) {
+    @NonNull public ContextHubTransaction<Void> disableNanoApp(
+            @NonNull ContextHubInfo hubInfo, long nanoAppId) {
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+
         ContextHubTransaction<Void> transaction =
                 new ContextHubTransaction<>(ContextHubTransaction.TYPE_DISABLE_NANOAPP);
         IContextHubTransactionCallback callback = createTransactionCallback(transaction);
@@ -444,10 +492,13 @@
      *
      * @return the ContextHubTransaction of the request
      *
-     * @hide
+     * @throws NullPointerException if hubInfo is null
      */
     @RequiresPermission(android.Manifest.permission.LOCATION_HARDWARE)
-    public ContextHubTransaction<List<NanoAppState>> queryNanoApps(ContextHubInfo hubInfo) {
+    @NonNull public ContextHubTransaction<List<NanoAppState>> queryNanoApps(
+            @NonNull ContextHubInfo hubInfo) {
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+
         ContextHubTransaction<List<NanoAppState>> transaction =
                 new ContextHubTransaction<>(ContextHubTransaction.TYPE_QUERY_NANOAPPS);
         IContextHubTransactionCallback callback = createQueryCallback(transaction);
@@ -469,9 +520,14 @@
      * @see Callback
      *
      * @return int 0 on success, -1 otherwise
+     *
+     * @deprecated Use {@link #createClient(ContextHubInfo, ContextHubClientCallback, Executor)}
+     *             or {@link #createClient(ContextHubInfo, ContextHubClientCallback)} instead to
+     *             register a {@link android.hardware.location.ContextHubClientCallback}.
      */
+    @Deprecated
     @SuppressLint("Doclava125")
-    public int registerCallback(Callback callback) {
+    public int registerCallback(@NonNull Callback callback) {
         return registerCallback(callback, null);
     }
 
@@ -498,7 +554,12 @@
      * @see Callback
      *
      * @return int 0 on success, -1 otherwise
+     *
+     * @deprecated Use {@link #createClient(ContextHubInfo, ContextHubClientCallback, Executor)}
+     *             or {@link #createClient(ContextHubInfo, ContextHubClientCallback)} instead to
+     *             register a {@link android.hardware.location.ContextHubClientCallback}.
      */
+    @Deprecated
     @SuppressLint("Doclava125")
     public int registerCallback(Callback callback, Handler handler) {
         synchronized(this) {
@@ -515,47 +576,48 @@
     /**
      * Creates an interface to the ContextHubClient to send down to the service.
      *
+     * @param client the ContextHubClient object associated with this callback
      * @param callback the callback to invoke at the client process
      * @param executor the executor to invoke callbacks for this client
      *
      * @return the callback interface
      */
     private IContextHubClientCallback createClientCallback(
-            ContextHubClientCallback callback, Executor executor) {
+            ContextHubClient client, ContextHubClientCallback callback, Executor executor) {
         return new IContextHubClientCallback.Stub() {
             @Override
             public void onMessageFromNanoApp(NanoAppMessage message) {
-                executor.execute(() -> callback.onMessageFromNanoApp(message));
+                executor.execute(() -> callback.onMessageFromNanoApp(client, message));
             }
 
             @Override
             public void onHubReset() {
-                executor.execute(() -> callback.onHubReset());
+                executor.execute(() -> callback.onHubReset(client));
             }
 
             @Override
             public void onNanoAppAborted(long nanoAppId, int abortCode) {
-                executor.execute(() -> callback.onNanoAppAborted(nanoAppId, abortCode));
+                executor.execute(() -> callback.onNanoAppAborted(client, nanoAppId, abortCode));
             }
 
             @Override
             public void onNanoAppLoaded(long nanoAppId) {
-                executor.execute(() -> callback.onNanoAppLoaded(nanoAppId));
+                executor.execute(() -> callback.onNanoAppLoaded(client, nanoAppId));
             }
 
             @Override
             public void onNanoAppUnloaded(long nanoAppId) {
-                executor.execute(() -> callback.onNanoAppUnloaded(nanoAppId));
+                executor.execute(() -> callback.onNanoAppUnloaded(client, nanoAppId));
             }
 
             @Override
             public void onNanoAppEnabled(long nanoAppId) {
-                executor.execute(() -> callback.onNanoAppEnabled(nanoAppId));
+                executor.execute(() -> callback.onNanoAppEnabled(client, nanoAppId));
             }
 
             @Override
             public void onNanoAppDisabled(long nanoAppId) {
-                executor.execute(() -> callback.onNanoAppDisabled(nanoAppId));
+                executor.execute(() -> callback.onNanoAppDisabled(client, nanoAppId));
             }
         };
     }
@@ -574,31 +636,30 @@
      *
      * @throws IllegalArgumentException if hubInfo does not represent a valid hub
      * @throws IllegalStateException    if there were too many registered clients at the service
-     * @throws NullPointerException     if callback or hubInfo is null
+     * @throws NullPointerException     if callback, hubInfo, or executor is null
      *
-     * @hide
      * @see ContextHubClientCallback
      */
     @NonNull public ContextHubClient createClient(
             @NonNull ContextHubInfo hubInfo, @NonNull ContextHubClientCallback callback,
             @NonNull @CallbackExecutor Executor executor) {
-        if (callback == null) {
-            throw new NullPointerException("Callback cannot be null");
-        }
-        if (hubInfo == null) {
-            throw new NullPointerException("Hub info cannot be null");
-        }
+        Preconditions.checkNotNull(callback, "Callback cannot be null");
+        Preconditions.checkNotNull(hubInfo, "ContextHubInfo cannot be null");
+        Preconditions.checkNotNull(executor, "Executor cannot be null");
 
-        IContextHubClientCallback clientInterface = createClientCallback(callback, executor);
+        ContextHubClient client = new ContextHubClient(hubInfo);
+        IContextHubClientCallback clientInterface = createClientCallback(
+                client, callback, executor);
 
-        IContextHubClient client;
+        IContextHubClient clientProxy;
         try {
-            client = mService.createClient(clientInterface, hubInfo.getId());
+            clientProxy = mService.createClient(clientInterface, hubInfo.getId());
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
 
-        return new ContextHubClient(client, clientInterface, hubInfo);
+        client.setClientProxy(clientProxy);
+        return client;
     }
 
     /**
@@ -612,7 +673,7 @@
      * @throws IllegalArgumentException if hubInfo does not represent a valid hub
      * @throws IllegalStateException    if there were too many registered clients at the service
      * @throws NullPointerException     if callback or hubInfo is null
-     * @hide
+     *
      * @see ContextHubClientCallback
      */
     @NonNull public ContextHubClient createClient(
@@ -628,9 +689,13 @@
      * @param callback method to deregister
      *
      * @return int 0 on success, -1 otherwise
+     *
+     * @deprecated Use {@link android.hardware.location.ContextHubClient#close()} to unregister
+     *             a {@link android.hardware.location.ContextHubClientCallback}.
      */
     @SuppressLint("Doclava125")
-    public int unregisterCallback(Callback callback) {
+    @Deprecated
+    public int unregisterCallback(@NonNull Callback callback) {
       synchronized(this) {
           if (callback != mCallback) {
               Log.w(TAG, "Cannot recognize callback!");
diff --git a/core/java/android/hardware/location/ContextHubTransaction.java b/core/java/android/hardware/location/ContextHubTransaction.java
index a1b743d..bc7efef 100644
--- a/core/java/android/hardware/location/ContextHubTransaction.java
+++ b/core/java/android/hardware/location/ContextHubTransaction.java
@@ -18,9 +18,12 @@
 import android.annotation.CallbackExecutor;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
+import android.annotation.SystemApi;
 import android.os.Handler;
 import android.os.HandlerExecutor;
 
+import com.android.internal.util.Preconditions;
+
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 import java.util.concurrent.CountDownLatch;
@@ -35,17 +38,19 @@
  * through the ContextHubManager APIs. The caller can either retrieve the result
  * synchronously through a blocking call ({@link #waitForResponse(long, TimeUnit)}) or
  * asynchronously through a user-defined listener
- * ({@link #setOnCompleteListener(Listener, Executor)} )}).
+ * ({@link #setOnCompleteListener(OnCompleteListener, Executor)} )}).
  *
  * @param <T> the type of the contents in the transaction response
  *
  * @hide
  */
+@SystemApi
 public class ContextHubTransaction<T> {
     private static final String TAG = "ContextHubTransaction";
 
     /**
      * Constants describing the type of a transaction through the Context Hub Service.
+     * {@hide}
      */
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(prefix = { "TYPE_" }, value = {
@@ -65,6 +70,7 @@
 
     /**
      * Constants describing the result of a transaction or request through the Context Hub Service.
+     * {@hide}
      */
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(prefix = { "RESULT_" }, value = {
@@ -72,7 +78,7 @@
             RESULT_FAILED_UNKNOWN,
             RESULT_FAILED_BAD_PARAMS,
             RESULT_FAILED_UNINITIALIZED,
-            RESULT_FAILED_PENDING,
+            RESULT_FAILED_BUSY,
             RESULT_FAILED_AT_HUB,
             RESULT_FAILED_TIMEOUT,
             RESULT_FAILED_SERVICE_INTERNAL_FAILURE,
@@ -95,7 +101,7 @@
     /**
      * Failure mode when there are too many transactions pending.
      */
-    public static final int RESULT_FAILED_PENDING = 4;
+    public static final int RESULT_FAILED_BUSY = 4;
     /**
      * Failure mode when the request went through, but failed asynchronously at the hub.
      */
@@ -151,7 +157,7 @@
      * @param <L> the type of the contents in the transaction response
      */
     @FunctionalInterface
-    public interface Listener<L> {
+    public interface OnCompleteListener<L> {
         /**
          * The listener function to invoke when the transaction completes.
          *
@@ -181,7 +187,7 @@
     /*
      * The listener to be invoked when the transaction completes.
      */
-    private ContextHubTransaction.Listener<T> mListener = null;
+    private ContextHubTransaction.OnCompleteListener<T> mListener = null;
 
     /*
      * Synchronization latch used to block on response.
@@ -272,8 +278,8 @@
      * A transaction can be invalidated if the process owning the transaction is no longer active
      * and the reference to this object is lost.
      *
-     * This method or {@link #setOnCompleteListener(ContextHubTransaction.Listener)} can only be
-     * invoked once, or an IllegalStateException will be thrown.
+     * This method or {@link #setOnCompleteListener(ContextHubTransaction.OnCompleteListener)} can
+     * only be invoked once, or an IllegalStateException will be thrown.
      *
      * @param listener the listener to be invoked upon completion
      * @param executor the executor to invoke the callback
@@ -282,15 +288,11 @@
      * @throws NullPointerException if the callback or handler is null
      */
     public void setOnCompleteListener(
-            @NonNull ContextHubTransaction.Listener<T> listener,
+            @NonNull ContextHubTransaction.OnCompleteListener<T> listener,
             @NonNull @CallbackExecutor Executor executor) {
         synchronized (this) {
-            if (listener == null) {
-                throw new NullPointerException("Listener cannot be null");
-            }
-            if (executor == null) {
-                throw new NullPointerException("Executor cannot be null");
-            }
+            Preconditions.checkNotNull(listener, "OnCompleteListener cannot be null");
+            Preconditions.checkNotNull(executor, "Executor cannot be null");
             if (mListener != null) {
                 throw new IllegalStateException(
                         "Cannot set ContextHubTransaction listener multiple times");
@@ -308,18 +310,19 @@
     /**
      * Sets the listener to be invoked invoked when the transaction completes.
      *
-     * Equivalent to {@link #setOnCompleteListener(ContextHubTransaction.Listener, Executor)}
-     * with the executor using the main thread's Looper.
+     * Equivalent to {@link #setOnCompleteListener(ContextHubTransaction.OnCompleteListener,
+     * Executor)} with the executor using the main thread's Looper.
      *
-     * This method or {@link #setOnCompleteListener(ContextHubTransaction.Listener, Executor)}
-     * can only be invoked once, or an IllegalStateException will be thrown.
+     * This method or {@link #setOnCompleteListener(ContextHubTransaction.OnCompleteListener,
+     * Executor)} can only be invoked once, or an IllegalStateException will be thrown.
      *
      * @param listener the listener to be invoked upon completion
      *
      * @throws IllegalStateException if this method is called multiple times
      * @throws NullPointerException if the callback is null
      */
-    public void setOnCompleteListener(@NonNull ContextHubTransaction.Listener<T> listener) {
+    public void setOnCompleteListener(
+            @NonNull ContextHubTransaction.OnCompleteListener<T> listener) {
         setOnCompleteListener(listener, new HandlerExecutor(Handler.getMain()));
     }
 
@@ -337,9 +340,7 @@
      */
     /* package */ void setResponse(ContextHubTransaction.Response<T> response) {
         synchronized (this) {
-            if (response == null) {
-                throw new NullPointerException("Response cannot be null");
-            }
+            Preconditions.checkNotNull(response, "Response cannot be null");
             if (mIsResponseSet) {
                 throw new IllegalStateException(
                         "Cannot set response of ContextHubTransaction multiple times");
diff --git a/core/java/android/hardware/location/NanoAppBinary.java b/core/java/android/hardware/location/NanoAppBinary.java
index 934e9e4..ba01ca2 100644
--- a/core/java/android/hardware/location/NanoAppBinary.java
+++ b/core/java/android/hardware/location/NanoAppBinary.java
@@ -15,6 +15,7 @@
  */
 package android.hardware.location;
 
+import android.annotation.SystemApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Log;
@@ -27,6 +28,7 @@
 /**
  * @hide
  */
+@SystemApi
 public final class NanoAppBinary implements Parcelable {
     private static final String TAG = "NanoAppBinary";
 
diff --git a/core/java/android/hardware/location/NanoAppMessage.java b/core/java/android/hardware/location/NanoAppMessage.java
index 2028674..716a194 100644
--- a/core/java/android/hardware/location/NanoAppMessage.java
+++ b/core/java/android/hardware/location/NanoAppMessage.java
@@ -15,6 +15,7 @@
  */
 package android.hardware.location;
 
+import android.annotation.SystemApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -25,6 +26,7 @@
  *
  * @hide
  */
+@SystemApi
 public final class NanoAppMessage implements Parcelable {
     private long mNanoAppId;
     private int mMessageType;
diff --git a/core/java/android/hardware/location/NanoAppState.java b/core/java/android/hardware/location/NanoAppState.java
index 644031b..d05277d 100644
--- a/core/java/android/hardware/location/NanoAppState.java
+++ b/core/java/android/hardware/location/NanoAppState.java
@@ -15,6 +15,7 @@
  */
 package android.hardware.location;
 
+import android.annotation.SystemApi;
 import android.os.Parcel;
 import android.os.Parcelable;
 
@@ -23,6 +24,7 @@
  *
  * @hide
  */
+@SystemApi
 public final class NanoAppState implements Parcelable {
     private long mNanoAppId;
     private int mNanoAppVersion;
diff --git a/core/java/android/hardware/radio/RadioManager.java b/core/java/android/hardware/radio/RadioManager.java
index 4d54e31..9b6515c 100644
--- a/core/java/android/hardware/radio/RadioManager.java
+++ b/core/java/android/hardware/radio/RadioManager.java
@@ -38,6 +38,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 import java.util.stream.Collectors;
 
@@ -645,7 +646,8 @@
         private final boolean mAf;
         private final boolean mEa;
 
-        FmBandDescriptor(int region, int type, int lowerLimit, int upperLimit, int spacing,
+        /** @hide */
+        public FmBandDescriptor(int region, int type, int lowerLimit, int upperLimit, int spacing,
                 boolean stereo, boolean rds, boolean ta, boolean af, boolean ea) {
             super(region, type, lowerLimit, upperLimit, spacing);
             mStereo = stereo;
@@ -771,7 +773,8 @@
 
         private final boolean mStereo;
 
-        AmBandDescriptor(int region, int type, int lowerLimit, int upperLimit, int spacing,
+        /** @hide */
+        public AmBandDescriptor(int region, int type, int lowerLimit, int upperLimit, int spacing,
                 boolean stereo) {
             super(region, type, lowerLimit, upperLimit, spacing);
             mStereo = stereo;
@@ -843,10 +846,10 @@
     /** Radio band configuration. */
     public static class BandConfig implements Parcelable {
 
-        final BandDescriptor mDescriptor;
+        @NonNull final BandDescriptor mDescriptor;
 
         BandConfig(BandDescriptor descriptor) {
-            mDescriptor = descriptor;
+            mDescriptor = Objects.requireNonNull(descriptor);
         }
 
         BandConfig(int region, int type, int lowerLimit, int upperLimit, int spacing) {
@@ -968,7 +971,8 @@
         private final boolean mAf;
         private final boolean mEa;
 
-        FmBandConfig(FmBandDescriptor descriptor) {
+        /** @hide */
+        public FmBandConfig(FmBandDescriptor descriptor) {
             super((BandDescriptor)descriptor);
             mStereo = descriptor.isStereoSupported();
             mRds = descriptor.isRdsSupported();
@@ -1204,7 +1208,8 @@
     public static class AmBandConfig extends BandConfig {
         private final boolean mStereo;
 
-        AmBandConfig(AmBandDescriptor descriptor) {
+        /** @hide */
+        public AmBandConfig(AmBandDescriptor descriptor) {
             super((BandDescriptor)descriptor);
             mStereo = descriptor.isStereoSupported();
         }
diff --git a/core/java/android/os/Handler.java b/core/java/android/os/Handler.java
index 3ca1005..5c5e351 100644
--- a/core/java/android/os/Handler.java
+++ b/core/java/android/os/Handler.java
@@ -388,6 +388,8 @@
      * The runnable will be run on the thread to which this handler is attached.
      *
      * @param r The Runnable that will be executed.
+     * @param token An instance which can be used to cancel {@code r} via
+     *         {@link #removeCallbacksAndMessages}.
      * @param uptimeMillis The absolute time at which the callback should run,
      *         using the {@link android.os.SystemClock#uptimeMillis} time-base.
      * 
@@ -430,6 +432,32 @@
     }
     
     /**
+     * Causes the Runnable r to be added to the message queue, to be run
+     * after the specified amount of time elapses.
+     * The runnable will be run on the thread to which this handler
+     * is attached.
+     * <b>The time-base is {@link android.os.SystemClock#uptimeMillis}.</b>
+     * Time spent in deep sleep will add an additional delay to execution.
+     *
+     * @param r The Runnable that will be executed.
+     * @param token An instance which can be used to cancel {@code r} via
+     *         {@link #removeCallbacksAndMessages}.
+     * @param delayMillis The delay (in milliseconds) until the Runnable
+     *        will be executed.
+     *
+     * @return Returns true if the Runnable was successfully placed in to the
+     *         message queue.  Returns false on failure, usually because the
+     *         looper processing the message queue is exiting.  Note that a
+     *         result of true does not mean the Runnable will be processed --
+     *         if the looper is quit before the delivery time of the message
+     *         occurs then the message will be dropped.
+     */
+    public final boolean postDelayed(Runnable r, Object token, long delayMillis)
+    {
+        return sendMessageDelayed(getPostMessage(r, token), delayMillis);
+    }
+
+    /**
      * Posts a message to an object that implements Runnable.
      * Causes the Runnable r to executed on the next iteration through the
      * message queue. The runnable will be run on the thread to which this
diff --git a/core/java/android/os/IStatsManager.aidl b/core/java/android/os/IStatsManager.aidl
index 3db12ed..29812e8 100644
--- a/core/java/android/os/IStatsManager.aidl
+++ b/core/java/android/os/IStatsManager.aidl
@@ -71,7 +71,7 @@
      * Fetches data for the specified configuration key. Returns a byte array representing proto
      * wire-encoded of ConfigMetricsReportList.
      */
-    byte[] getData(in String key);
+    byte[] getData(in long key);
 
     /**
      * Fetches metadata across statsd. Returns byte array representing wire-encoded proto.
@@ -86,7 +86,7 @@
      *
      * Returns if this configuration was correctly registered.
      */
-    boolean addConfiguration(in String configKey, in byte[] config, in String pkg, in String cls);
+    boolean addConfiguration(in long configKey, in byte[] config, in String pkg, in String cls);
 
     /**
      * Removes the configuration with the matching config key. No-op if this config key does not
@@ -94,5 +94,5 @@
      *
      * Returns if this configuration key was removed.
      */
-    boolean removeConfiguration(in String configKey);
+    boolean removeConfiguration(in long configKey);
 }
diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java
index dd9fd93..38993b7 100644
--- a/core/java/android/os/UserManager.java
+++ b/core/java/android/os/UserManager.java
@@ -2197,7 +2197,8 @@
 
     /**
      * Similar to {@link #trySetQuietModeEnabled(boolean, UserHandle)}, except you can specify
-     * a target to start when user is unlocked.
+     * a target to start when user is unlocked. If {@code target} is specified, caller must have
+     * the {@link android.Manifest.permission#MANAGE_USERS} permission.
      *
      * @see {@link #trySetQuietModeEnabled(boolean, UserHandle)}
      * @hide
diff --git a/core/java/android/security/recoverablekeystore/RecoverableKeyStoreLoader.java b/core/java/android/security/recoverablekeystore/RecoverableKeyStoreLoader.java
index 72a138a..0cf8da5 100644
--- a/core/java/android/security/recoverablekeystore/RecoverableKeyStoreLoader.java
+++ b/core/java/android/security/recoverablekeystore/RecoverableKeyStoreLoader.java
@@ -426,7 +426,7 @@
      * Imports keys.
      *
      * @param sessionId Id for recovery session, same as in
-     *     {@link #startRecoverySession(String, byte[], byte[], byte[], List)} on}.
+     *     {@link #startRecoverySession(String, byte[], byte[], byte[], List)}.
      * @param recoveryKeyBlob Recovery blob encrypted by symmetric key generated for this session.
      * @param applicationKeys Application keys. Key material can be decrypted using recoveryKeyBlob
      *     and session. KeyStore only uses package names from the application info in {@link
diff --git a/core/java/android/text/format/Formatter.java b/core/java/android/text/format/Formatter.java
index 8c90156..ad3b4b6 100644
--- a/core/java/android/text/format/Formatter.java
+++ b/core/java/android/text/format/Formatter.java
@@ -20,11 +20,7 @@
 import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.Resources;
-import android.icu.text.DecimalFormat;
 import android.icu.text.MeasureFormat;
-import android.icu.text.NumberFormat;
-import android.icu.text.UnicodeSet;
-import android.icu.text.UnicodeSetSpanner;
 import android.icu.util.Measure;
 import android.icu.util.MeasureUnit;
 import android.net.NetworkUtils;
@@ -32,8 +28,6 @@
 import android.text.TextUtils;
 import android.view.View;
 
-import java.lang.reflect.Constructor;
-import java.math.BigDecimal;
 import java.util.Locale;
 
 /**
@@ -43,8 +37,6 @@
 public final class Formatter {
 
     /** {@hide} */
-    public static final int FLAG_DEFAULT = 0;
-    /** {@hide} */
     public static final int FLAG_SHORTER = 1 << 0;
     /** {@hide} */
     public static final int FLAG_CALCULATE_ROUNDED = 1 << 1;
@@ -66,9 +58,7 @@
         return context.getResources().getConfiguration().getLocales().get(0);
     }
 
-    /**
-     * Wraps the source string in bidi formatting characters in RTL locales.
-     */
+    /* Wraps the source string in bidi formatting characters in RTL locales */
     private static String bidiWrap(@NonNull Context context, String source) {
         final Locale locale = localeFromContext(context);
         if (TextUtils.getLayoutDirectionFromLocale(locale) == View.LAYOUT_DIRECTION_RTL) {
@@ -97,7 +87,12 @@
      * @return formatted string with the number
      */
     public static String formatFileSize(@Nullable Context context, long sizeBytes) {
-        return formatFileSize(context, sizeBytes, FLAG_DEFAULT);
+        if (context == null) {
+            return "";
+        }
+        final BytesResult res = formatBytes(context.getResources(), sizeBytes, 0);
+        return bidiWrap(context, context.getString(com.android.internal.R.string.fileSizeSuffix,
+                res.value, res.units));
     }
 
     /**
@@ -105,207 +100,88 @@
      * (showing fewer digits of precision).
      */
     public static String formatShortFileSize(@Nullable Context context, long sizeBytes) {
-        return formatFileSize(context, sizeBytes, FLAG_SHORTER);
-    }
-
-    private static String formatFileSize(@Nullable Context context, long sizeBytes, int flags) {
         if (context == null) {
             return "";
         }
-        final RoundedBytesResult res = RoundedBytesResult.roundBytes(sizeBytes, flags);
-        return bidiWrap(context, formatRoundedBytesResult(context, res));
-    }
-
-    private static String getSuffixOverride(@NonNull Resources res, MeasureUnit unit) {
-        if (unit == MeasureUnit.BYTE) {
-            return res.getString(com.android.internal.R.string.byteShort);
-        } else { // unit == PETABYTE
-            return res.getString(com.android.internal.R.string.petabyteShort);
-        }
-    }
-
-    private static NumberFormat getNumberFormatter(Locale locale, int fractionDigits) {
-        final NumberFormat numberFormatter = NumberFormat.getInstance(locale);
-        numberFormatter.setMinimumFractionDigits(fractionDigits);
-        numberFormatter.setMaximumFractionDigits(fractionDigits);
-        numberFormatter.setGroupingUsed(false);
-        if (numberFormatter instanceof DecimalFormat) {
-            // We do this only for DecimalFormat, since in the general NumberFormat case, calling
-            // setRoundingMode may throw an exception.
-            numberFormatter.setRoundingMode(BigDecimal.ROUND_HALF_UP);
-        }
-        return numberFormatter;
-    }
-
-    private static String deleteFirstFromString(String source, String toDelete) {
-        final int location = source.indexOf(toDelete);
-        if (location == -1) {
-            return source;
-        } else {
-            return source.substring(0, location)
-                    + source.substring(location + toDelete.length(), source.length());
-        }
-    }
-
-    private static String formatMeasureShort(Locale locale, NumberFormat numberFormatter,
-            float value, MeasureUnit units) {
-        final MeasureFormat measureFormatter = MeasureFormat.getInstance(
-                locale, MeasureFormat.FormatWidth.SHORT, numberFormatter);
-        return measureFormatter.format(new Measure(value, units));
-    }
-
-    private static final UnicodeSetSpanner SPACES_AND_CONTROLS =
-            new UnicodeSetSpanner(new UnicodeSet("[[:Zs:][:Cf:]]").freeze());
-
-    private static String formatRoundedBytesResult(
-            @NonNull Context context, @NonNull RoundedBytesResult input) {
-        final Locale locale = localeFromContext(context);
-        final NumberFormat numberFormatter = getNumberFormatter(locale, input.fractionDigits);
-        if (input.units == MeasureUnit.BYTE || input.units == PETABYTE) {
-            // ICU spells out "byte" instead of "B", and can't format petabytes yet.
-            final String formattedNumber = numberFormatter.format(input.value);
-            return context.getString(com.android.internal.R.string.fileSizeSuffix,
-                    formattedNumber, getSuffixOverride(context.getResources(), input.units));
-        } else {
-            return formatMeasureShort(locale, numberFormatter, input.value, input.units);
-        }
+        final BytesResult res = formatBytes(context.getResources(), sizeBytes, FLAG_SHORTER);
+        return bidiWrap(context, context.getString(com.android.internal.R.string.fileSizeSuffix,
+                res.value, res.units));
     }
 
     /** {@hide} */
     public static BytesResult formatBytes(Resources res, long sizeBytes, int flags) {
-        final RoundedBytesResult rounded = RoundedBytesResult.roundBytes(sizeBytes, flags);
-        final Locale locale = res.getConfiguration().getLocales().get(0);
-        final NumberFormat numberFormatter = getNumberFormatter(locale, rounded.fractionDigits);
-        final String formattedNumber = numberFormatter.format(rounded.value);
-        final String units;
-        if (rounded.units == MeasureUnit.BYTE || rounded.units == PETABYTE) {
-            // ICU spells out "byte" instead of "B", and can't format petabytes yet.
-            units = getSuffixOverride(res, rounded.units);
-        } else {
-            // Since ICU does not give us access to the pattern, we need to extract the unit string
-            // from ICU, which we do by taking out the formatted number out of the formatted string
-            // and trimming the result of spaces and controls.
-            final String formattedMeasure = formatMeasureShort(
-                    locale, numberFormatter, rounded.value, rounded.units);
-            final String numberRemoved = deleteFirstFromString(formattedMeasure, formattedNumber);
-            units = SPACES_AND_CONTROLS.trim(numberRemoved).toString();
+        final boolean isNegative = (sizeBytes < 0);
+        float result = isNegative ? -sizeBytes : sizeBytes;
+        int suffix = com.android.internal.R.string.byteShort;
+        long mult = 1;
+        if (result > 900) {
+            suffix = com.android.internal.R.string.kilobyteShort;
+            mult = 1000;
+            result = result / 1000;
         }
-        return new BytesResult(formattedNumber, units, rounded.roundedBytes);
-    }
-
-    /**
-     * ICU doesn't support PETABYTE yet. Fake it so that we can treat all units the same way.
-     */
-    private static final MeasureUnit PETABYTE = createPetaByte();
-
-    /**
-     * Create a petabyte MeasureUnit without registering it with ICU.
-     * ICU doesn't support user-create MeasureUnit and the only public (but hidden) method to do so
-     * is {@link MeasureUnit#internalGetInstance(String, String)} which also registers the unit as
-     * an available type and thus leaks it to code that doesn't expect or support it.
-     * <p>This method uses reflection to create an instance of MeasureUnit to avoid leaking it. This
-     * instance is <b>only</b> to be used in this class.
-     */
-    private static MeasureUnit createPetaByte() {
-        try {
-            Constructor<MeasureUnit> constructor = MeasureUnit.class
-                    .getDeclaredConstructor(String.class, String.class);
-            constructor.setAccessible(true);
-            return constructor.newInstance("digital", "petabyte");
-        } catch (ReflectiveOperationException e) {
-            throw new RuntimeException("Failed to create petabyte MeasureUnit", e);
+        if (result > 900) {
+            suffix = com.android.internal.R.string.megabyteShort;
+            mult *= 1000;
+            result = result / 1000;
         }
-    }
-
-    private static class RoundedBytesResult {
-        public final float value;
-        public final MeasureUnit units;
-        public final int fractionDigits;
-        public final long roundedBytes;
-
-        private RoundedBytesResult(
-                float value, MeasureUnit units, int fractionDigits, long roundedBytes) {
-            this.value = value;
-            this.units = units;
-            this.fractionDigits = fractionDigits;
-            this.roundedBytes = roundedBytes;
+        if (result > 900) {
+            suffix = com.android.internal.R.string.gigabyteShort;
+            mult *= 1000;
+            result = result / 1000;
         }
-
-        /**
-         * Returns a RoundedBytesResult object based on the input size in bytes and the rounding
-         * flags. The result can be used for formatting.
-         */
-        static RoundedBytesResult roundBytes(long sizeBytes, int flags) {
-            final boolean isNegative = (sizeBytes < 0);
-            float result = isNegative ? -sizeBytes : sizeBytes;
-            MeasureUnit units = MeasureUnit.BYTE;
-            long mult = 1;
-            if (result > 900) {
-                units = MeasureUnit.KILOBYTE;
-                mult = 1000;
-                result = result / 1000;
-            }
-            if (result > 900) {
-                units = MeasureUnit.MEGABYTE;
-                mult *= 1000;
-                result = result / 1000;
-            }
-            if (result > 900) {
-                units = MeasureUnit.GIGABYTE;
-                mult *= 1000;
-                result = result / 1000;
-            }
-            if (result > 900) {
-                units = MeasureUnit.TERABYTE;
-                mult *= 1000;
-                result = result / 1000;
-            }
-            if (result > 900) {
-                units = PETABYTE;
-                mult *= 1000;
-                result = result / 1000;
-            }
-            // Note we calculate the rounded long by ourselves, but still let NumberFormat compute
-            // the rounded value. NumberFormat.format(0.1) might not return "0.1" due to floating
-            // point errors.
-            final int roundFactor;
-            final int roundDigits;
-            if (mult == 1 || result >= 100) {
-                roundFactor = 1;
-                roundDigits = 0;
-            } else if (result < 1) {
+        if (result > 900) {
+            suffix = com.android.internal.R.string.terabyteShort;
+            mult *= 1000;
+            result = result / 1000;
+        }
+        if (result > 900) {
+            suffix = com.android.internal.R.string.petabyteShort;
+            mult *= 1000;
+            result = result / 1000;
+        }
+        // Note we calculate the rounded long by ourselves, but still let String.format()
+        // compute the rounded value. String.format("%f", 0.1) might not return "0.1" due to
+        // floating point errors.
+        final int roundFactor;
+        final String roundFormat;
+        if (mult == 1 || result >= 100) {
+            roundFactor = 1;
+            roundFormat = "%.0f";
+        } else if (result < 1) {
+            roundFactor = 100;
+            roundFormat = "%.2f";
+        } else if (result < 10) {
+            if ((flags & FLAG_SHORTER) != 0) {
+                roundFactor = 10;
+                roundFormat = "%.1f";
+            } else {
                 roundFactor = 100;
-                roundDigits = 2;
-            } else if (result < 10) {
-                if ((flags & FLAG_SHORTER) != 0) {
-                    roundFactor = 10;
-                    roundDigits = 1;
-                } else {
-                    roundFactor = 100;
-                    roundDigits = 2;
-                }
-            } else { // 10 <= result < 100
-                if ((flags & FLAG_SHORTER) != 0) {
-                    roundFactor = 1;
-                    roundDigits = 0;
-                } else {
-                    roundFactor = 100;
-                    roundDigits = 2;
-                }
+                roundFormat = "%.2f";
             }
-
-            if (isNegative) {
-                result = -result;
+        } else { // 10 <= result < 100
+            if ((flags & FLAG_SHORTER) != 0) {
+                roundFactor = 1;
+                roundFormat = "%.0f";
+            } else {
+                roundFactor = 100;
+                roundFormat = "%.2f";
             }
-
-            // Note this might overflow if abs(result) >= Long.MAX_VALUE / 100, but that's like
-            // 80PB so it's okay (for now)...
-            final long roundedBytes =
-                    (flags & FLAG_CALCULATE_ROUNDED) == 0 ? 0
-                    : (((long) Math.round(result * roundFactor)) * mult / roundFactor);
-
-            return new RoundedBytesResult(result, units, roundDigits, roundedBytes);
         }
+
+        if (isNegative) {
+            result = -result;
+        }
+        final String roundedString = String.format(roundFormat, result);
+
+        // Note this might overflow if abs(result) >= Long.MAX_VALUE / 100, but that's like 80PB so
+        // it's okay (for now)...
+        final long roundedBytes =
+                (flags & FLAG_CALCULATE_ROUNDED) == 0 ? 0
+                : (((long) Math.round(result * roundFactor)) * mult / roundFactor);
+
+        final String units = res.getString(suffix);
+
+        return new BytesResult(roundedString, units, roundedBytes);
     }
 
     /**
diff --git a/core/java/android/util/StatsManager.java b/core/java/android/util/StatsManager.java
index 26a3c36..c25b272 100644
--- a/core/java/android/util/StatsManager.java
+++ b/core/java/android/util/StatsManager.java
@@ -53,7 +53,7 @@
      * @return true if successful
      */
     @RequiresPermission(Manifest.permission.DUMP)
-    public boolean addConfiguration(String configKey, byte[] config, String pkg, String cls) {
+    public boolean addConfiguration(long configKey, byte[] config, String pkg, String cls) {
         synchronized (this) {
             try {
                 IStatsManager service = getIStatsManagerLocked();
@@ -76,7 +76,7 @@
      * @return true if successful
      */
     @RequiresPermission(Manifest.permission.DUMP)
-    public boolean removeConfiguration(String configKey) {
+    public boolean removeConfiguration(long configKey) {
         synchronized (this) {
             try {
                 IStatsManager service = getIStatsManagerLocked();
@@ -100,7 +100,7 @@
      * @return Serialized ConfigMetricsReportList proto. Returns null on failure.
      */
     @RequiresPermission(Manifest.permission.DUMP)
-    public byte[] getData(String configKey) {
+    public byte[] getData(long configKey) {
         synchronized (this) {
             try {
                 IStatsManager service = getIStatsManagerLocked();
diff --git a/core/java/android/view/ViewStructure.java b/core/java/android/view/ViewStructure.java
index d665dde..1d94abe 100644
--- a/core/java/android/view/ViewStructure.java
+++ b/core/java/android/view/ViewStructure.java
@@ -26,6 +26,8 @@
 import android.view.autofill.AutofillId;
 import android.view.autofill.AutofillValue;
 
+import com.android.internal.util.Preconditions;
+
 import java.util.List;
 
 /**
@@ -204,6 +206,16 @@
     public abstract void setTextLines(int[] charOffsets, int[] baselines);
 
     /**
+     * Sets the identifier used to set the text associated with this view.
+     *
+     * <p>Should only be set when the node is used for autofill purposes - it will be ignored
+     * when used for Assist.
+     */
+    public void setTextIdEntry(@NonNull String entryName) {
+        Preconditions.checkNotNull(entryName);
+    }
+
+    /**
      * Set optional hint text associated with this view; this is for example the text that is
      * shown by an EditText when it is empty to indicate to the user the kind of text to input.
      */
diff --git a/core/java/android/view/accessibility/AccessibilityEvent.java b/core/java/android/view/accessibility/AccessibilityEvent.java
index 1d19a9f..9871539 100644
--- a/core/java/android/view/accessibility/AccessibilityEvent.java
+++ b/core/java/android/view/accessibility/AccessibilityEvent.java
@@ -350,21 +350,22 @@
  * view.</br>
  * </p>
  * <p>
- * <b>Windows changed</b> - represents the event of changes in the windows shown on
+ * <b>Windows changed</b> - represents a change in the windows shown on
  * the screen such as a window appeared, a window disappeared, a window size changed,
- * a window layer changed, etc.</br>
+ * a window layer changed, etc. These events should only come from the system, which is responsible
+ * for managing windows. For regions of the user interface that are presented as windows but are
+ * controlled by an app's process, use {@link #TYPE_WINDOW_STATE_CHANGED}.</br>
  * <em>Type:</em> {@link #TYPE_WINDOWS_CHANGED}</br>
  * <em>Properties:</em></br>
  * <ul>
  *   <li>{@link #getEventType()} - The type of the event.</li>
  *   <li>{@link #getEventTime()} - The event time.</li>
+ *   <li>{@link #getWindowChanges()}</li> - The specific change to the source window
  * </ul>
  * <em>Note:</em> You can retrieve the {@link AccessibilityWindowInfo} for the window
- * source of the event via {@link AccessibilityEvent#getSource()} to get the source
- * node on which then call {@link AccessibilityNodeInfo#getWindow()
- * AccessibilityNodeInfo.getWindow()} to get the window. Also all windows on the screen can
- * be retrieved by a call to {@link android.accessibilityservice.AccessibilityService#getWindows()
- * android.accessibilityservice.AccessibilityService.getWindows()}.
+ * source of the event by looking through the list returned by
+ * {@link android.accessibilityservice.AccessibilityService#getWindows()} for the window whose ID
+ * matches {@link #getWindowId()}.
  * </p>
  * <p>
  * <b>NOTIFICATION TYPES</b></br>
@@ -712,6 +713,88 @@
      */
     public static final int CONTENT_CHANGE_TYPE_CONTENT_DESCRIPTION = 0x00000004;
 
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window was added.
+     */
+    public static final int WINDOWS_CHANGE_ADDED = 0x00000001;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * A window was removed.
+     */
+    public static final int WINDOWS_CHANGE_REMOVED = 0x00000002;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's title changed.
+     */
+    public static final int WINDOWS_CHANGE_TITLE = 0x00000004;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's bounds changed.
+     */
+    public static final int WINDOWS_CHANGE_BOUNDS = 0x00000008;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's layer changed.
+     */
+    public static final int WINDOWS_CHANGE_LAYER = 0x00000010;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's {@link AccessibilityWindowInfo#isActive()} changed.
+     */
+    public static final int WINDOWS_CHANGE_ACTIVE = 0x00000020;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's {@link AccessibilityWindowInfo#isFocused()} changed.
+     */
+    public static final int WINDOWS_CHANGE_FOCUSED = 0x00000040;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's {@link AccessibilityWindowInfo#isAccessibilityFocused()} changed.
+     */
+    public static final int WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED = 0x00000080;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's parent changed.
+     */
+    public static final int WINDOWS_CHANGE_PARENT = 0x00000100;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window's children changed.
+     */
+    public static final int WINDOWS_CHANGE_CHILDREN = 0x00000200;
+
+    /**
+     * Change type for {@link #TYPE_WINDOWS_CHANGED} event:
+     * The window either entered or exited picture-in-picture mode.
+     */
+    public static final int WINDOWS_CHANGE_PIP = 0x00000400;
+
+    /** @hide */
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef(flag = true, prefix = { "WINDOWS_CHANGE_" }, value = {
+            WINDOWS_CHANGE_ADDED,
+            WINDOWS_CHANGE_REMOVED,
+            WINDOWS_CHANGE_TITLE,
+            WINDOWS_CHANGE_BOUNDS,
+            WINDOWS_CHANGE_LAYER,
+            WINDOWS_CHANGE_ACTIVE,
+            WINDOWS_CHANGE_FOCUSED,
+            WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED,
+            WINDOWS_CHANGE_PARENT,
+            WINDOWS_CHANGE_CHILDREN,
+            WINDOWS_CHANGE_PIP
+    })
+    public @interface WindowsChangeTypes {}
 
     /** @hide */
     @IntDef(flag = true, prefix = { "TYPE_" }, value = {
@@ -782,6 +865,7 @@
     int mMovementGranularity;
     int mAction;
     int mContentChangeTypes;
+    int mWindowChangeTypes;
 
     private ArrayList<AccessibilityRecord> mRecords;
 
@@ -802,6 +886,7 @@
         mMovementGranularity = event.mMovementGranularity;
         mAction = event.mAction;
         mContentChangeTypes = event.mContentChangeTypes;
+        mWindowChangeTypes = event.mWindowChangeTypes;
         mEventTime = event.mEventTime;
         mPackageName = event.mPackageName;
     }
@@ -919,6 +1004,43 @@
     }
 
     /**
+     * Get the bit mask of change types signaled by a {@link #TYPE_WINDOWS_CHANGED} event. A
+     * single event may represent multiple change types.
+     *
+     * @return The bit mask of change types.
+     */
+    @WindowsChangeTypes
+    public int getWindowChanges() {
+        return mWindowChangeTypes;
+    }
+
+    /** @hide  */
+    public void setWindowChanges(@WindowsChangeTypes int changes) {
+        mWindowChangeTypes = changes;
+    }
+
+    private static String windowChangeTypesToString(@WindowsChangeTypes int types) {
+        return BitUtils.flagsToString(types, AccessibilityEvent::singleWindowChangeTypeToString);
+    }
+
+    private static String singleWindowChangeTypeToString(int type) {
+        switch (type) {
+            case WINDOWS_CHANGE_ADDED: return "WINDOWS_CHANGE_ADDED";
+            case WINDOWS_CHANGE_REMOVED: return "WINDOWS_CHANGE_REMOVED";
+            case WINDOWS_CHANGE_TITLE: return "WINDOWS_CHANGE_TITLE";
+            case WINDOWS_CHANGE_BOUNDS: return "WINDOWS_CHANGE_BOUNDS";
+            case WINDOWS_CHANGE_LAYER: return "WINDOWS_CHANGE_LAYER";
+            case WINDOWS_CHANGE_ACTIVE: return "WINDOWS_CHANGE_ACTIVE";
+            case WINDOWS_CHANGE_FOCUSED: return "WINDOWS_CHANGE_FOCUSED";
+            case WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED:
+                return "WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED";
+            case WINDOWS_CHANGE_PARENT: return "WINDOWS_CHANGE_PARENT";
+            case WINDOWS_CHANGE_CHILDREN: return "WINDOWS_CHANGE_CHILDREN";
+            default: return Integer.toHexString(type);
+        }
+    }
+
+    /**
      * Sets the event type.
      *
      * @param eventType The event type.
@@ -1025,6 +1147,26 @@
     }
 
     /**
+     * Convenience method to obtain a {@link #TYPE_WINDOWS_CHANGED} event for a specific window and
+     * change set.
+     *
+     * @param windowId The ID of the window that changed
+     * @param windowChangeTypes The changes to populate
+     * @return An instance of a TYPE_WINDOWS_CHANGED, populated with the requested fields and with
+     *         importantForAccessibility set to {@code true}.
+     *
+     * @hide
+     */
+    public static AccessibilityEvent obtainWindowsChangedEvent(
+            int windowId, int windowChangeTypes) {
+        final AccessibilityEvent event = AccessibilityEvent.obtain(TYPE_WINDOWS_CHANGED);
+        event.setWindowId(windowId);
+        event.setWindowChanges(windowChangeTypes);
+        event.setImportantForAccessibility(true);
+        return event;
+    }
+
+    /**
      * Returns a cached instance if such is available or a new one is
      * instantiated with its type property set.
      *
@@ -1099,6 +1241,7 @@
         mMovementGranularity = 0;
         mAction = 0;
         mContentChangeTypes = 0;
+        mWindowChangeTypes = 0;
         mPackageName = null;
         mEventTime = 0;
         if (mRecords != null) {
@@ -1120,6 +1263,7 @@
         mMovementGranularity = parcel.readInt();
         mAction = parcel.readInt();
         mContentChangeTypes = parcel.readInt();
+        mWindowChangeTypes = parcel.readInt();
         mPackageName = TextUtils.CHAR_SEQUENCE_CREATOR.createFromParcel(parcel);
         mEventTime = parcel.readLong();
         mConnectionId = parcel.readInt();
@@ -1178,6 +1322,7 @@
         parcel.writeInt(mMovementGranularity);
         parcel.writeInt(mAction);
         parcel.writeInt(mContentChangeTypes);
+        parcel.writeInt(mWindowChangeTypes);
         TextUtils.writeToParcel(mPackageName, parcel, 0);
         parcel.writeLong(mEventTime);
         parcel.writeInt(mConnectionId);
@@ -1238,11 +1383,13 @@
         builder.append("; PackageName: ").append(mPackageName);
         builder.append("; MovementGranularity: ").append(mMovementGranularity);
         builder.append("; Action: ").append(mAction);
+        builder.append("; ContentChangeTypes: ").append(
+                contentChangeTypesToString(mContentChangeTypes));
+        builder.append("; WindowChangeTypes: ").append(
+                windowChangeTypesToString(mWindowChangeTypes));
         builder.append(super.toString());
         if (DEBUG) {
             builder.append("\n");
-            builder.append("; ContentChangeTypes: ").append(
-                    contentChangeTypesToString(mContentChangeTypes));
             builder.append("; sourceWindowId: ").append(mSourceWindowId);
             builder.append("; mSourceNodeId: ").append(mSourceNodeId);
             for (int i = 0; i < getRecordCount(); i++) {
diff --git a/core/java/android/view/accessibility/AccessibilityWindowInfo.java b/core/java/android/view/accessibility/AccessibilityWindowInfo.java
index ef1a3f3..c1c9174 100644
--- a/core/java/android/view/accessibility/AccessibilityWindowInfo.java
+++ b/core/java/android/view/accessibility/AccessibilityWindowInfo.java
@@ -21,9 +21,12 @@
 import android.graphics.Rect;
 import android.os.Parcel;
 import android.os.Parcelable;
+import android.text.TextUtils;
 import android.util.LongArray;
 import android.util.Pools.SynchronizedPool;
+import android.view.accessibility.AccessibilityEvent.WindowsChangeTypes;
 
+import java.util.Objects;
 import java.util.concurrent.atomic.AtomicInteger;
 
 /**
@@ -575,7 +578,7 @@
         StringBuilder builder = new StringBuilder();
         builder.append("AccessibilityWindowInfo[");
         builder.append("title=").append(mTitle);
-        builder.append("id=").append(mId);
+        builder.append(", id=").append(mId);
         builder.append(", type=").append(typeToString(mType));
         builder.append(", layer=").append(mLayer);
         builder.append(", bounds=").append(mBoundsInScreen);
@@ -713,6 +716,60 @@
         return false;
     }
 
+    /**
+     * Reports how this window differs from a possibly different state of the same window. The
+     * argument must have the same id and type as neither of those properties may change.
+     *
+     * @param other The new state.
+     * @return A set of flags showing how the window has changes, or 0 if the two states are the
+     * same.
+     *
+     * @hide
+     */
+    @WindowsChangeTypes
+    public int differenceFrom(AccessibilityWindowInfo other) {
+        if (other.mId != mId) {
+            throw new IllegalArgumentException("Not same window.");
+        }
+        if (other.mType != mType) {
+            throw new IllegalArgumentException("Not same type.");
+        }
+        int changes = 0;
+        if (!TextUtils.equals(mTitle, other.mTitle)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_TITLE;
+        }
+
+        if (!mBoundsInScreen.equals(other.mBoundsInScreen)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_BOUNDS;
+        }
+        if (mLayer != other.mLayer) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_LAYER;
+        }
+        if (getBooleanProperty(BOOLEAN_PROPERTY_ACTIVE)
+                != other.getBooleanProperty(BOOLEAN_PROPERTY_ACTIVE)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_ACTIVE;
+        }
+        if (getBooleanProperty(BOOLEAN_PROPERTY_FOCUSED)
+                != other.getBooleanProperty(BOOLEAN_PROPERTY_FOCUSED)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_FOCUSED;
+        }
+        if (getBooleanProperty(BOOLEAN_PROPERTY_ACCESSIBILITY_FOCUSED)
+                != other.getBooleanProperty(BOOLEAN_PROPERTY_ACCESSIBILITY_FOCUSED)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED;
+        }
+        if (getBooleanProperty(BOOLEAN_PROPERTY_PICTURE_IN_PICTURE)
+                != other.getBooleanProperty(BOOLEAN_PROPERTY_PICTURE_IN_PICTURE)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_PIP;
+        }
+        if (mParentId != other.mParentId) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_PARENT;
+        }
+        if (!Objects.equals(mChildIds, other.mChildIds)) {
+            changes |= AccessibilityEvent.WINDOWS_CHANGE_CHILDREN;
+        }
+        return changes;
+    }
+
     public static final Parcelable.Creator<AccessibilityWindowInfo> CREATOR =
             new Creator<AccessibilityWindowInfo>() {
         @Override
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index 1e17f34..1618d62 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -44,6 +44,7 @@
 import android.content.res.ColorStateList;
 import android.content.res.CompatibilityInfo;
 import android.content.res.Configuration;
+import android.content.res.ResourceId;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
@@ -785,9 +786,11 @@
     // mAutoSizeStepGranularityInPx.
     private boolean mHasPresetAutoSizeValues = false;
 
-    // Indicates whether the text was set from resources or dynamically, so it can be used to
+    // Indicates whether the text was set statically or dynamically, so it can be used to
     // sanitize autofill requests.
-    private boolean mTextFromResource = false;
+    private boolean mSetFromXmlOrResourceId = false;
+    // Resource id used to set the text - used for autofill purposes.
+    private @StringRes int mTextId = ResourceId.ID_NULL;
 
     /**
      * Kick-start the font cache for the zygote process (to pay the cost of
@@ -926,7 +929,8 @@
 
         int n = a.getIndexCount();
 
-        boolean fromResourceId = false;
+        // Must set id in a temporary variable because it will be reset by setText()
+        boolean setFromXml = false;
         for (int i = 0; i < n; i++) {
             int attr = a.getIndex(i);
 
@@ -1068,7 +1072,8 @@
                     break;
 
                 case com.android.internal.R.styleable.TextView_text:
-                    fromResourceId = true;
+                    setFromXml = true;
+                    mTextId = a.getResourceId(attr, ResourceId.ID_NULL);
                     text = a.getText(attr);
                     break;
 
@@ -1460,8 +1465,8 @@
         }
 
         setText(text, bufferType);
-        if (fromResourceId) {
-            mTextFromResource = true;
+        if (setFromXml) {
+            mSetFromXmlOrResourceId = true;
         }
 
         if (hint != null) setHint(hint);
@@ -5278,7 +5283,7 @@
 
     private void setText(CharSequence text, BufferType type,
                          boolean notifyBefore, int oldlen) {
-        mTextFromResource = false;
+        mSetFromXmlOrResourceId = false;
         if (text == null) {
             text = "";
         }
@@ -5516,7 +5521,8 @@
     @android.view.RemotableViewMethod
     public final void setText(@StringRes int resid) {
         setText(getContext().getResources().getText(resid));
-        mTextFromResource = true;
+        mSetFromXmlOrResourceId = true;
+        mTextId = resid;
     }
 
     /**
@@ -5543,7 +5549,8 @@
      */
     public final void setText(@StringRes int resid, BufferType type) {
         setText(getContext().getResources().getText(resid), type);
-        mTextFromResource = true;
+        mSetFromXmlOrResourceId = true;
+        mTextId = resid;
     }
 
     /**
@@ -10234,7 +10241,10 @@
         final boolean isPassword = hasPasswordTransformationMethod()
                 || isPasswordInputType(getInputType());
         if (forAutofill) {
-            structure.setDataIsSensitive(!mTextFromResource);
+            structure.setDataIsSensitive(!mSetFromXmlOrResourceId);
+            if (mTextId != ResourceId.ID_NULL) {
+                structure.setTextIdEntry(getResources().getResourceEntryName(mTextId));
+            }
         }
 
         if (!isPassword || forAutofill) {
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 64febf1..1b3d6ce 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -8699,8 +8699,11 @@
          common values are 400 for regular weight and 700 for bold weight. If unspecified, the value
          in the font's header tables will be used. -->
         <attr name="fontWeight" format="integer" />
-        <!-- The index of the font in the tcc font file. If the font file referenced is not in the
-         tcc format, this attribute needs not be specified. -->
+        <!-- The index of the font in the ttc (TrueType Collection) font file. If the font file
+         referenced is not in the ttc format, this attribute needs not be specified.
+         {@see android.graphics.Typeface#Builder.setTtcIndex(int)}.
+         The default value is 0. More details about the TrueType Collection font format can be found
+         here: https://en.wikipedia.org/wiki/TrueType#TrueType_Collection. -->
         <attr name="ttcIndex" format="integer" />
         <!-- The variation settings to be applied to the font. The string should be in the following
          format: "'tag1' value1, 'tag2' value2, ...". If the default variation settings should be
diff --git a/core/res/res/values/colors_device_defaults.xml b/core/res/res/values/colors_device_defaults.xml
index e2498df7..7048511 100644
--- a/core/res/res/values/colors_device_defaults.xml
+++ b/core/res/res/values/colors_device_defaults.xml
@@ -31,10 +31,8 @@
     <color name="tertiary_device_default_settings">@color/tertiary_material_settings</color>
     <color name="quaternary_device_default_settings">@color/quaternary_material_settings</color>
 
-    <color name="accent_device_default_700">@color/accent_material_700</color>
     <color name="accent_device_default_light">@color/accent_material_light</color>
     <color name="accent_device_default_dark">@color/accent_material_dark</color>
-    <color name="accent_device_default_50">@color/accent_material_50</color>
 
     <color name="background_device_default_dark">@color/background_material_dark</color>
     <color name="background_device_default_light">@color/background_material_light</color>
diff --git a/core/res/res/values/colors_material.xml b/core/res/res/values/colors_material.xml
index 8c37d4b..0413100 100644
--- a/core/res/res/values/colors_material.xml
+++ b/core/res/res/values/colors_material.xml
@@ -39,10 +39,8 @@
     <color name="tertiary_material_settings">@color/material_blue_grey_700</color>
     <color name="quaternary_material_settings">@color/material_blue_grey_200</color>
 
-    <color name="accent_material_700">@color/material_deep_teal_700</color>
     <color name="accent_material_light">@color/material_deep_teal_500</color>
     <color name="accent_material_dark">@color/material_deep_teal_200</color>
-    <color name="accent_material_50">@color/material_deep_teal_50</color>
 
     <color name="button_material_dark">#ff5a595b</color>
     <color name="button_material_light">#ffd6d7d7</color>
@@ -95,12 +93,10 @@
     <color name="material_grey_100">#fff5f5f5</color>
     <color name="material_grey_50">#fffafafa</color>
 
-    <color name="material_deep_teal_50">#ffe0f2f1</color>
     <color name="material_deep_teal_100">#ffb2dfdb</color>
     <color name="material_deep_teal_200">#ff80cbc4</color>
     <color name="material_deep_teal_300">#ff4db6ac</color>
     <color name="material_deep_teal_500">#ff009688</color>
-    <color name="material_deep_teal_700">#ff00796b</color>
 
     <color name="material_blue_grey_200">#ffb0bec5</color>
     <color name="material_blue_grey_700">#ff455a64</color>
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index dc791cf..fd05bb4 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -1302,8 +1302,8 @@
 
          If this is defined then:
             - config_autoBrightnessLcdBacklightValues should not be defined
-            - config_screenBrightnessMinimumNits must be defined
-            - config_screenBrightnessMaximumNits must be defined
+            - config_screenBrightnessNits must be defined
+            - config_screenBrightnessBacklight must be defined
 
          This array should have size one greater than the size of the config_autoBrightnessLevels
          array. The brightness values must be non-negative and non-decreasing. This must be
@@ -1347,28 +1347,23 @@
         <item>200</item>
     </integer-array>
 
-    <!-- The minimum brightness of the display in nits. On OLED displays this should be measured
-         with an all white image while the display is fully on and the backlight is set to
-         config_screenBrightnessSettingMinimum or config_screenBrightnessSettingDark, whichever
-         is darker.
+    <!-- An array describing the screen's backlight values corresponding to the brightness
+         values in the config_screenBrightnessNits array.
 
-         If this and config_screenBrightnessMinimumNits are set, then the display's brightness
-         range is assumed to be linear between
-         (config_screenBrightnessSettingMinimum, config_screenBrightnessMinimumNits) and
-         (config_screenBrightnessSettingMaximum, config_screenBrightnessMaximumNits). -->
-    <item name="config_screenBrightnessMinimumNits" format="float" type="dimen">-1.0</item>
+         This array should be equal in size to config_screenBrightnessBacklight. -->
+    <integer-array name="config_screenBrightnessBacklight">
+    </integer-array>
 
-    <!-- The maximum brightness of the display in nits. On OLED displays this should be measured
-         with an all white image while the display is fully on and the "backlight" is set to
-         config_screenBrightnessSettingMaximum. Note that this value should *not* reflect the
-         maximum brightness value for any high brightness modes but only the maximum brightness
-         value obtainable in a sustainable manner.
+    <!-- An array of floats describing the screen brightness in nits corresponding to the backlight
+         values in the config_screenBrightnessBacklight array.  On OLED displays these  values
+         should be measured with an all white image while the display is in the fully on state.
+         Note that this value should *not* reflect the maximum brightness value for any high
+         brightness modes but only the maximum brightness value obtainable in a sustainable manner.
 
-         If this and config_screenBrightnessMinimumNits are set to something non-negative, then the
-         display's brightness range is assumed to be linear between
-         (config_screenBrightnessSettingMinimum, config_screenBrightnessMaximumNits) and
-         (config_screenBrightnessSettingMaximum, config_screenBrightnessMaximumNits). -->
-    <item name="config_screenBrightnessMaximumNits" format="float" type="dimen">-1.0</item>
+         This array should be equal in size to config_screenBrightnessBacklight -->
+    <array name="config_screenBrightnessNits">
+    </array>
+
 
     <!-- Array of ambient lux threshold values. This is used for determining hysteresis constraint
          values by calculating the index to use for lookup and then setting the constraint value
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 5783435..c54f799 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -20,13 +20,23 @@
 <resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <!-- Suffix added to a number to signify size in bytes. -->
     <string name="byteShort">B</string>
+    <!-- Suffix added to a number to signify size in kilobytes (1000 bytes).
+        If you retain the Latin script for the localization, please use the lowercase
+        'k', as it signifies 1000 bytes as opposed to 1024 bytes. -->
+    <string name="kilobyteShort">kB</string>
+    <!-- Suffix added to a number to signify size in megabytes. -->
+    <string name="megabyteShort">MB</string>
+    <!-- Suffix added to a number to signify size in gigabytes. -->
+    <string name="gigabyteShort">GB</string>
+    <!-- Suffix added to a number to signify size in terabytes. -->
+    <string name="terabyteShort">TB</string>
     <!-- Suffix added to a number to signify size in petabytes. -->
     <string name="petabyteShort">PB</string>
-    <!-- Format string used to add a suffix like "B" or "PB" to a number
-         to display a size in bytes or petabytes.
-         Some languages may want to remove the space between the placeholders
-         or replace it with a non-breaking space. -->
-    <string name="fileSizeSuffix"><xliff:g id="number" example="123">%1$s</xliff:g> <xliff:g id="unit" example="B">%2$s</xliff:g></string>
+    <!-- Format string used to add a suffix like "kB" or "MB" to a number
+         to display a size in kilobytes, megabytes, or other size units.
+         Some languages (like French) will want to add a space between
+         the placeholders. -->
+    <string name="fileSizeSuffix"><xliff:g id="number" example="123">%1$s</xliff:g> <xliff:g id="unit" example="MB">%2$s</xliff:g></string>
 
     <!-- Used in Contacts for a field that has no label and in Note Pad
          for a note with no name. -->
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 8e391d3..4343ba0 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -705,6 +705,7 @@
   <java-symbol type="string" name="fileSizeSuffix" />
   <java-symbol type="string" name="force_close" />
   <java-symbol type="string" name="gadget_host_error_inflating" />
+  <java-symbol type="string" name="gigabyteShort" />
   <java-symbol type="string" name="gpsNotifMessage" />
   <java-symbol type="string" name="gpsNotifTicker" />
   <java-symbol type="string" name="gpsNotifTitle" />
@@ -760,6 +761,7 @@
   <java-symbol type="string" name="keyboardview_keycode_enter" />
   <java-symbol type="string" name="keyboardview_keycode_mode_change" />
   <java-symbol type="string" name="keyboardview_keycode_shift" />
+  <java-symbol type="string" name="kilobyteShort" />
   <java-symbol type="string" name="last_month" />
   <java-symbol type="string" name="launchBrowserDefault" />
   <java-symbol type="string" name="lock_to_app_toast" />
@@ -779,6 +781,7 @@
   <java-symbol type="string" name="lockscreen_emergency_call" />
   <java-symbol type="string" name="lockscreen_return_to_call" />
   <java-symbol type="string" name="low_memory" />
+  <java-symbol type="string" name="megabyteShort" />
   <java-symbol type="string" name="midnight" />
   <java-symbol type="string" name="mismatchPin" />
   <java-symbol type="string" name="mmiComplete" />
@@ -981,6 +984,7 @@
   <java-symbol type="string" name="sync_really_delete" />
   <java-symbol type="string" name="sync_too_many_deletes_desc" />
   <java-symbol type="string" name="sync_undo_deletes" />
+  <java-symbol type="string" name="terabyteShort" />
   <java-symbol type="string" name="text_copied" />
   <java-symbol type="string" name="time_of_day" />
   <java-symbol type="string" name="time_picker_decrement_hour_button" />
@@ -3193,7 +3197,7 @@
   <java-symbol type="string" name="global_action_logout" />
   <java-symbol type="drawable" name="ic_logout" />
 
-  <java-symbol type="dimen" name="config_screenBrightnessMinimumNits" />
-  <java-symbol type="dimen" name="config_screenBrightnessMaximumNits" />
   <java-symbol type="array" name="config_autoBrightnessDisplayValuesNits" />
+  <java-symbol type="array" name="config_screenBrightnessBacklight" />
+  <java-symbol type="array" name="config_screenBrightnessNits" />
 </resources>
diff --git a/core/tests/coretests/src/android/app/servertransaction/ObjectPoolTests.java b/core/tests/coretests/src/android/app/servertransaction/ObjectPoolTests.java
index aefc47e..c19a343 100644
--- a/core/tests/coretests/src/android/app/servertransaction/ObjectPoolTests.java
+++ b/core/tests/coretests/src/android/app/servertransaction/ObjectPoolTests.java
@@ -42,7 +42,8 @@
 
 @RunWith(AndroidJUnit4.class)
 @SmallTest
-@Presubmit
+// TODO: b/70616950
+//@Presubmit
 public class ObjectPoolTests {
 
     // 1. Check if two obtained objects from pool are not the same.
diff --git a/core/tests/coretests/src/android/text/format/FormatterTest.java b/core/tests/coretests/src/android/text/format/FormatterTest.java
index 9c544f4..04d2dad 100644
--- a/core/tests/coretests/src/android/text/format/FormatterTest.java
+++ b/core/tests/coretests/src/android/text/format/FormatterTest.java
@@ -17,7 +17,6 @@
 package android.text.format;
 
 import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotEquals;
 
 import android.content.Context;
 import android.content.res.Configuration;
@@ -210,24 +209,4 @@
 
         Locale.setDefault(locale);
     }
-
-    /**
-     * Verifies that Formatter doesn't "leak" the locally defined petabyte unit into ICU via the
-     * {@link MeasureUnit} registry. This test can fail for two reasons:
-     * 1. we regressed and started leaking again. In this case the code needs to be fixed.
-     * 2. ICU started supporting petabyte as a unit, in which case change one needs to revert this
-     * change (I494fb59a3b3742f35cbdf6b8705817f404a2c6b0), remove Formatter.PETABYTE and replace any
-     * usages of that field with just MeasureUnit.PETABYTE.
-     */
-    // http://b/65632959
-    @Test
-    public void doesNotLeakPetabyte() {
-        // Ensure that the Formatter class is loaded when we call .getAvailable().
-        Formatter.formatFileSize(mContext, Long.MAX_VALUE);
-        Set<MeasureUnit> digitalUnits = MeasureUnit.getAvailable("digital");
-        for (MeasureUnit unit : digitalUnits) {
-            // This assert can fail if we don't leak PETABYTE, but ICU has added it, see #2 above.
-            assertNotEquals("petabyte", unit.getSubtype());
-        }
-    }
 }
diff --git a/core/tests/coretests/src/android/view/accessibility/AccessibilityEventTest.java b/core/tests/coretests/src/android/view/accessibility/AccessibilityEventTest.java
new file mode 100644
index 0000000..fed197e
--- /dev/null
+++ b/core/tests/coretests/src/android/view/accessibility/AccessibilityEventTest.java
@@ -0,0 +1,68 @@
+/*
+ * 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.view.accessibility;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+import android.os.Parcel;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+/**
+ * AccessibilityEvent is public, so CTS covers it pretty well. Verifying hidden methods here.
+ */
+@RunWith(AndroidJUnit4.class)
+public class AccessibilityEventTest {
+    @Test
+    public void testImportantForAccessibiity_getSetWorkAcrossParceling() {
+        AccessibilityEvent event = AccessibilityEvent.obtain();
+        event.setImportantForAccessibility(true);
+        assertTrue(copyEventViaParcel(event).isImportantForAccessibility());
+
+        event.setImportantForAccessibility(false);
+        assertFalse(copyEventViaParcel(event).isImportantForAccessibility());
+    }
+
+    @Test
+    public void testSouceNodeId_getSetWorkAcrossParceling() {
+        final long sourceNodeId = 0x1234567890ABCDEFL;
+        AccessibilityEvent event = AccessibilityEvent.obtain();
+        event.setSourceNodeId(sourceNodeId);
+        assertEquals(sourceNodeId, copyEventViaParcel(event).getSourceNodeId());
+    }
+
+    @Test
+    public void testWindowChanges_getSetWorkAcrossParceling() {
+        final int windowChanges = AccessibilityEvent.WINDOWS_CHANGE_TITLE
+                | AccessibilityEvent.WINDOWS_CHANGE_ACTIVE
+                | AccessibilityEvent.WINDOWS_CHANGE_FOCUSED;
+        AccessibilityEvent event = AccessibilityEvent.obtain();
+        event.setWindowChanges(windowChanges);
+        assertEquals(windowChanges, copyEventViaParcel(event).getWindowChanges());
+    }
+
+    private AccessibilityEvent copyEventViaParcel(AccessibilityEvent event) {
+        Parcel parcel = Parcel.obtain();
+        event.writeToParcel(parcel, 0);
+        parcel.setDataPosition(0);
+        return AccessibilityEvent.CREATOR.createFromParcel(parcel);
+    }
+}
diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index 3d65bd2..68b7ac2 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -429,7 +429,7 @@
         }
 
         /**
-         * Sets an index of the font collection.
+         * Sets an index of the font collection. See {@link android.R.attr#ttcIndex}.
          *
          * Can not be used for Typeface source. build() method will return null for invalid index.
          * @param ttcIndex An index of the font collection. If the font source is not font
diff --git a/keystore/java/android/security/IKeyChainService.aidl b/keystore/java/android/security/IKeyChainService.aidl
index 7c7417d..5a8fa07 100644
--- a/keystore/java/android/security/IKeyChainService.aidl
+++ b/keystore/java/android/security/IKeyChainService.aidl
@@ -34,7 +34,8 @@
     void setUserSelectable(String alias, boolean isUserSelectable);
 
     boolean generateKeyPair(in String algorithm, in ParcelableKeyGenParameterSpec spec);
-    boolean attestKey(in String alias, in byte[] challenge, out KeymasterCertificateChain chain);
+    boolean attestKey(in String alias, in byte[] challenge, in int[] idAttestationFlags,
+            out KeymasterCertificateChain chain);
     boolean setKeyPairCertificate(String alias, in byte[] userCert, in byte[] certChain);
 
     // APIs used by CertInstaller and DevicePolicyManager
diff --git a/keystore/java/android/security/keystore/AttestationUtils.java b/keystore/java/android/security/keystore/AttestationUtils.java
index 0811100..efee8b4 100644
--- a/keystore/java/android/security/keystore/AttestationUtils.java
+++ b/keystore/java/android/security/keystore/AttestationUtils.java
@@ -99,48 +99,35 @@
         }
     }
 
-    /**
-     * Performs attestation of the device's identifiers. This method returns a certificate chain
-     * whose first element contains the requested device identifiers in an extension. The device's
-     * manufacturer, model, brand, device and product are always also included in the attestation.
-     * If the device supports attestation in secure hardware, the chain will be rooted at a
-     * trustworthy CA key. Otherwise, the chain will be rooted at an untrusted certificate. See
-     * <a href="https://developer.android.com/training/articles/security-key-attestation.html">
-     * Key Attestation</a> for the format of the certificate extension.
-     * <p>
-     * Attestation will only be successful when all of the following are true:
-     * 1) The device has been set up to support device identifier attestation at the factory.
-     * 2) The user has not permanently disabled device identifier attestation.
-     * 3) You have permission to access the device identifiers you are requesting attestation for.
-     * <p>
-     * For privacy reasons, you cannot distinguish between (1) and (2). If attestation is
-     * unsuccessful, the device may not support it in general or the user may have permanently
-     * disabled it.
-     *
-     * @param context the context to use for retrieving device identifiers.
-     * @param idTypes the types of device identifiers to attest.
-     * @param attestationChallenge a blob to include in the certificate alongside the device
-     * identifiers.
-     *
-     * @return a certificate chain containing the requested device identifiers in the first element
-     *
-     * @exception SecurityException if you are not permitted to obtain an attestation of the
-     * device's identifiers.
-     * @exception DeviceIdAttestationException if the attestation operation fails.
-     */
-    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
-    @NonNull public static X509Certificate[] attestDeviceIds(Context context,
-            @NonNull int[] idTypes, @NonNull byte[] attestationChallenge) throws
+    @NonNull private static KeymasterArguments prepareAttestationArgumentsForDeviceId(
+            Context context, @NonNull int[] idTypes, @NonNull byte[] attestationChallenge) throws
             DeviceIdAttestationException {
-        // Check method arguments, retrieve requested device IDs and prepare attestation arguments.
+        // Verify that device ID attestation types are provided.
         if (idTypes == null) {
             throw new NullPointerException("Missing id types");
         }
+
+        return prepareAttestationArguments(context, idTypes, attestationChallenge);
+    }
+
+    /**
+     * Prepares Keymaster Arguments with attestation data.
+     * @hide should only be used by KeyChain.
+     */
+    @NonNull public static KeymasterArguments prepareAttestationArguments(Context context,
+            @NonNull int[] idTypes, @NonNull byte[] attestationChallenge) throws
+            DeviceIdAttestationException {
+        // Check method arguments, retrieve requested device IDs and prepare attestation arguments.
         if (attestationChallenge == null) {
             throw new NullPointerException("Missing attestation challenge");
         }
         final KeymasterArguments attestArgs = new KeymasterArguments();
         attestArgs.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_CHALLENGE, attestationChallenge);
+        // Return early if the caller did not request any device identifiers to be included in the
+        // attestation record.
+        if (idTypes == null) {
+            return attestArgs;
+        }
         final Set<Integer> idTypesSet = new ArraySet<>(idTypes.length);
         for (int idType : idTypes) {
             idTypesSet.add(idType);
@@ -191,6 +178,44 @@
                 Build.MANUFACTURER.getBytes(StandardCharsets.UTF_8));
         attestArgs.addBytes(KeymasterDefs.KM_TAG_ATTESTATION_ID_MODEL,
                 Build.MODEL.getBytes(StandardCharsets.UTF_8));
+        return attestArgs;
+    }
+
+    /**
+     * Performs attestation of the device's identifiers. This method returns a certificate chain
+     * whose first element contains the requested device identifiers in an extension. The device's
+     * manufacturer, model, brand, device and product are always also included in the attestation.
+     * If the device supports attestation in secure hardware, the chain will be rooted at a
+     * trustworthy CA key. Otherwise, the chain will be rooted at an untrusted certificate. See
+     * <a href="https://developer.android.com/training/articles/security-key-attestation.html">
+     * Key Attestation</a> for the format of the certificate extension.
+     * <p>
+     * Attestation will only be successful when all of the following are true:
+     * 1) The device has been set up to support device identifier attestation at the factory.
+     * 2) The user has not permanently disabled device identifier attestation.
+     * 3) You have permission to access the device identifiers you are requesting attestation for.
+     * <p>
+     * For privacy reasons, you cannot distinguish between (1) and (2). If attestation is
+     * unsuccessful, the device may not support it in general or the user may have permanently
+     * disabled it.
+     *
+     * @param context the context to use for retrieving device identifiers.
+     * @param idTypes the types of device identifiers to attest.
+     * @param attestationChallenge a blob to include in the certificate alongside the device
+     * identifiers.
+     *
+     * @return a certificate chain containing the requested device identifiers in the first element
+     *
+     * @exception SecurityException if you are not permitted to obtain an attestation of the
+     * device's identifiers.
+     * @exception DeviceIdAttestationException if the attestation operation fails.
+     */
+    @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
+    @NonNull public static X509Certificate[] attestDeviceIds(Context context,
+            @NonNull int[] idTypes, @NonNull byte[] attestationChallenge) throws
+            DeviceIdAttestationException {
+        final KeymasterArguments attestArgs = prepareAttestationArgumentsForDeviceId(
+                context, idTypes, attestationChallenge);
 
         // Perform attestation.
         final KeymasterCertificateChain outChain = new KeymasterCertificateChain();
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipAppOpsListener.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipAppOpsListener.java
new file mode 100644
index 0000000..f0e4ccc
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipAppOpsListener.java
@@ -0,0 +1,89 @@
+/*
+ * 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.pip.phone;
+
+import static android.app.AppOpsManager.MODE_ALLOWED;
+import static android.app.AppOpsManager.OP_PICTURE_IN_PICTURE;
+
+import android.app.AppOpsManager;
+import android.app.AppOpsManager.OnOpChangedListener;
+import android.app.IActivityManager;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.util.Pair;
+
+public class PipAppOpsListener {
+    private static final String TAG = PipAppOpsListener.class.getSimpleName();
+
+    private Context mContext;
+    private IActivityManager mActivityManager;
+    private AppOpsManager mAppOpsManager;
+
+    private PipMotionHelper mMotionHelper;
+
+    private AppOpsManager.OnOpChangedListener mAppOpsChangedListener = new OnOpChangedListener() {
+        @Override
+        public void onOpChanged(String op, String packageName) {
+            try {
+                // Dismiss the PiP once the user disables the app ops setting for that package
+                final Pair<ComponentName, Integer> topPipActivityInfo =
+                        PipUtils.getTopPinnedActivity(mContext, mActivityManager);
+                if (topPipActivityInfo.first != null) {
+                    final ApplicationInfo appInfo = mContext.getPackageManager()
+                            .getApplicationInfoAsUser(packageName, 0, topPipActivityInfo.second);
+                    if (appInfo.packageName.equals(topPipActivityInfo.first.getPackageName()) &&
+                            mAppOpsManager.checkOpNoThrow(OP_PICTURE_IN_PICTURE, appInfo.uid,
+                                    packageName) != MODE_ALLOWED) {
+                        mMotionHelper.dismissPip();
+                    }
+                }
+            } catch (NameNotFoundException e) {
+                // Unregister the listener if the package can't be found
+                unregisterAppOpsListener();
+            }
+        }
+    };
+
+    public PipAppOpsListener(Context context, IActivityManager activityManager,
+            PipMotionHelper motionHelper) {
+        mContext = context;
+        mActivityManager = activityManager;
+        mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
+        mMotionHelper = motionHelper;
+    }
+
+    public void onActivityPinned(String packageName) {
+        // Register for changes to the app ops setting for this package while it is in PiP
+        registerAppOpsListener(packageName);
+    }
+
+    public void onActivityUnpinned() {
+        // Unregister for changes to the previously PiP'ed package
+        unregisterAppOpsListener();
+    }
+
+    private void registerAppOpsListener(String packageName) {
+        mAppOpsManager.startWatchingMode(OP_PICTURE_IN_PICTURE, packageName,
+                mAppOpsChangedListener);
+    }
+
+    private void unregisterAppOpsListener() {
+        mAppOpsManager.stopWatchingMode(mAppOpsChangedListener);
+    }
+}
\ No newline at end of file
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
index dce3e24..36531bb 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
@@ -65,6 +65,7 @@
     private PipMenuActivityController mMenuController;
     private PipMediaController mMediaController;
     private PipTouchHandler mTouchHandler;
+    private PipAppOpsListener mAppOpsListener;
 
     /**
      * Handler for system task stack changes.
@@ -75,6 +76,7 @@
             mTouchHandler.onActivityPinned();
             mMediaController.onActivityPinned();
             mMenuController.onActivityPinned();
+            mAppOpsListener.onActivityPinned(packageName);
 
             SystemServicesProxy.getInstance(mContext).setPipVisibility(true);
         }
@@ -87,6 +89,7 @@
             final int userId = topActivity != null ? topPipActivityInfo.second : 0;
             mMenuController.onActivityUnpinned();
             mTouchHandler.onActivityUnpinned(topActivity);
+            mAppOpsListener.onActivityUnpinned();
 
             SystemServicesProxy.getInstance(mContext).setPipVisibility(topActivity != null);
         }
@@ -177,6 +180,8 @@
                 mInputConsumerController);
         mTouchHandler = new PipTouchHandler(context, mActivityManager, mMenuController,
                 mInputConsumerController);
+        mAppOpsListener = new PipAppOpsListener(context, mActivityManager,
+                mTouchHandler.getMotionHelper());
         EventBus.getDefault().register(this);
     }
 
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/leak/LeakDetectorTest.java b/packages/SystemUI/tests/src/com/android/systemui/util/leak/LeakDetectorTest.java
index f1965a2..56de32d 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/leak/LeakDetectorTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/leak/LeakDetectorTest.java
@@ -33,6 +33,8 @@
 import java.io.PrintWriter;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.function.BiConsumer;
+import java.util.function.Consumer;
 
 @SmallTest
 @RunWith(AndroidJUnit4.class)
@@ -40,6 +42,30 @@
 
     private LeakDetector mLeakDetector;
 
+    // The references for which collection is observed are stored in fields. The allocation and
+    // of these references happens in separate methods (trackObjectWith/trackCollectionWith)
+    // from where they are set to null. The generated code might keep the allocated reference
+    // alive in a dex register when compiling in release mode. As R8 is used to compile this
+    // test the --dontoptimize flag is also required to ensure that these methods are not
+    // inlined, as that would defeat the purpose of having the mutation in methods.
+    private Object mObject;
+    private Collection<?> mCollection;
+
+    private CollectionWaiter trackObjectWith(Consumer<Object> tracker) {
+        mObject = new Object();
+        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(mObject);
+        tracker.accept(mObject);
+        return collectionWaiter;
+    }
+
+    private CollectionWaiter trackCollectionWith(
+            BiConsumer<? super Collection<?>, String> tracker) {
+        mCollection = new ArrayList<>();
+        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(mCollection);
+        tracker.accept(mCollection, "tag");
+        return collectionWaiter;
+    }
+
     @Before
     public void setup() {
         mLeakDetector = LeakDetector.create();
@@ -51,31 +77,22 @@
 
     @Test
     public void trackInstance_doesNotLeakTrackedObject() {
-        Object object = new Object();
-        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(object);
-
-        mLeakDetector.trackInstance(object);
-        object = null;
+        CollectionWaiter collectionWaiter = trackObjectWith(mLeakDetector::trackInstance);
+        mObject = null;
         collectionWaiter.waitForCollection();
     }
 
     @Test
     public void trackCollection_doesNotLeakTrackedObject() {
-        Collection<?> object = new ArrayList<>();
-        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(object);
-
-        mLeakDetector.trackCollection(object, "tag");
-        object = null;
+        CollectionWaiter collectionWaiter = trackCollectionWith(mLeakDetector::trackCollection);
+        mCollection = null;
         collectionWaiter.waitForCollection();
     }
 
     @Test
     public void trackGarbage_doesNotLeakTrackedObject() {
-        Object object = new Object();
-        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(object);
-
-        mLeakDetector.trackGarbage(object);
-        object = null;
+        CollectionWaiter collectionWaiter = trackObjectWith(mLeakDetector::trackGarbage);
+        mObject = null;
         collectionWaiter.waitForCollection();
     }
 
@@ -108,4 +125,4 @@
         FileOutputStream fos = new FileOutputStream("/dev/null");
         mLeakDetector.dump(fos.getFD(), new PrintWriter(fos), new String[0]);
     }
-}
\ No newline at end of file
+}
diff --git a/packages/SystemUI/tests/src/com/android/systemui/util/leak/WeakIdentityHashMapTest.java b/packages/SystemUI/tests/src/com/android/systemui/util/leak/WeakIdentityHashMapTest.java
index 9787df9..ce6212e 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/util/leak/WeakIdentityHashMapTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/util/leak/WeakIdentityHashMapTest.java
@@ -41,6 +41,13 @@
         mMap = new WeakIdentityHashMap<>();
     }
 
+    private CollectionWaiter addObjectToMap(WeakIdentityHashMap<Object, Object> map) {
+      Object object = new Object();
+      CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(object);
+      map.put(object, "value");
+      return collectionWaiter;
+    }
+
     @Test
     public void testUsesIdentity() {
         String a1 = new String("a");
@@ -56,11 +63,12 @@
 
     @Test
     public void testWeaklyReferences() {
-        Object object = new Object();
-        CollectionWaiter collectionWaiter = ReferenceTestUtils.createCollectionWaiter(object);
-
-        mMap.put(object, "value");
-        object = null;
+        // Allocate and add an object to the weak map in a separate method to avoid a live
+        // reference to the allocated object in a dex register. As R8 is used to compile this
+        // test the --dontoptimize flag is also required to ensure that the method is not
+        // inlined, as that would defeat the purpose of having the allocation in a separate
+        // method.
+        CollectionWaiter collectionWaiter = addObjectToMap(mMap);
 
         // Wait until object has been collected. We'll also need to wait for mMap to become empty,
         // because our collection waiter may be told about the collection earlier than mMap.
@@ -70,4 +78,4 @@
         assertEquals(0, mMap.size());
         assertTrue(mMap.isEmpty());
     }
-}
\ No newline at end of file
+}
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 50b0be1..ba8ce59 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -17,6 +17,7 @@
 package com.android.server.accessibility;
 
 import static android.view.WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY;
+import static android.view.accessibility.AccessibilityEvent.WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED;
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS;
 import static android.view.accessibility.AccessibilityNodeInfo.ACTION_CLEAR_ACCESSIBILITY_FOCUS;
 
@@ -762,7 +763,6 @@
                 mPictureInPictureActionReplacingConnection = wrapper;
                 wrapper.linkToDeath();
             }
-            mSecurityPolicy.notifyWindowsChanged();
         }
     }
 
@@ -2283,6 +2283,14 @@
         }
     }
 
+    private void sendAccessibilityEventLocked(AccessibilityEvent event, int userId) {
+        // Resync to avoid calling out with the lock held
+        event.setEventTime(SystemClock.uptimeMillis());
+        mMainHandler.obtainMessage(
+                MainHandler.MSG_SEND_ACCESSIBILITY_EVENT, userId, 0 /* unused */, event)
+                .sendToTarget();
+    }
+
     /**
      * AIDL-exposed method. System only.
      * Inform accessibility that a fingerprint gesture was performed
@@ -2419,6 +2427,7 @@
         public static final int MSG_SEND_ACCESSIBILITY_BUTTON_TO_INPUT_FILTER = 13;
         public static final int MSG_SHOW_ACCESSIBILITY_BUTTON_CHOOSER = 14;
         public static final int MSG_INIT_SERVICE = 15;
+        public static final int MSG_SEND_ACCESSIBILITY_EVENT = 16;
 
         public MainHandler(Looper looper) {
             super(looper);
@@ -2519,6 +2528,12 @@
                             (AccessibilityServiceConnection) msg.obj;
                     service.initializeService();
                 } break;
+
+                case MSG_SEND_ACCESSIBILITY_EVENT: {
+                    final AccessibilityEvent event = (AccessibilityEvent) msg.obj;
+                    final int userId = msg.arg1;
+                    sendAccessibilityEvent(event, userId);
+                }
             }
         }
 
@@ -2533,7 +2548,7 @@
                     AccessibilityEvent event = AccessibilityEvent.obtain(
                             AccessibilityEvent.TYPE_ANNOUNCEMENT);
                     event.getText().add(message);
-                    sendAccessibilityEvent(event, mCurrentUserId);
+                    sendAccessibilityEventLocked(event, mCurrentUserId);
                 }
             }
         }
@@ -2961,21 +2976,21 @@
     public class SecurityPolicy {
         public static final int INVALID_WINDOW_ID = -1;
 
-        private static final int RETRIEVAL_ALLOWING_EVENT_TYPES =
-            AccessibilityEvent.TYPE_VIEW_CLICKED
-            | AccessibilityEvent.TYPE_VIEW_FOCUSED
-            | AccessibilityEvent.TYPE_VIEW_HOVER_ENTER
-            | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT
-            | AccessibilityEvent.TYPE_VIEW_LONG_CLICKED
-            | AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED
-            | AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
-            | AccessibilityEvent.TYPE_VIEW_SELECTED
-            | AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED
-            | AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED
-            | AccessibilityEvent.TYPE_VIEW_SCROLLED
-            | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED
-            | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED
-            | AccessibilityEvent.TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY;
+        private static final int KEEP_SOURCE_EVENT_TYPES = AccessibilityEvent.TYPE_VIEW_CLICKED
+                | AccessibilityEvent.TYPE_VIEW_FOCUSED
+                | AccessibilityEvent.TYPE_VIEW_HOVER_ENTER
+                | AccessibilityEvent.TYPE_VIEW_HOVER_EXIT
+                | AccessibilityEvent.TYPE_VIEW_LONG_CLICKED
+                | AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED
+                | AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED
+                | AccessibilityEvent.TYPE_WINDOWS_CHANGED
+                | AccessibilityEvent.TYPE_VIEW_SELECTED
+                | AccessibilityEvent.TYPE_WINDOW_CONTENT_CHANGED
+                | AccessibilityEvent.TYPE_VIEW_TEXT_SELECTION_CHANGED
+                | AccessibilityEvent.TYPE_VIEW_SCROLLED
+                | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUSED
+                | AccessibilityEvent.TYPE_VIEW_ACCESSIBILITY_FOCUS_CLEARED
+                | AccessibilityEvent.TYPE_VIEW_TEXT_TRAVERSED_AT_MOVEMENT_GRANULARITY;
 
         // In Z order
         public List<AccessibilityWindowInfo> mWindows;
@@ -3137,10 +3152,10 @@
                 mWindows = new ArrayList<>();
             }
 
-            final int oldWindowCount = mWindows.size();
-            for (int i = oldWindowCount - 1; i >= 0; i--) {
-                mWindows.remove(i).recycle();
-            }
+            List<AccessibilityWindowInfo> oldWindowList = new ArrayList<>(mWindows);
+            SparseArray<AccessibilityWindowInfo> oldWindowsById = mA11yWindowInfoById.clone();
+
+            mWindows.clear();
             mA11yWindowInfoById.clear();
 
             for (int i = 0; i < mWindowInfoById.size(); i++) {
@@ -3202,7 +3217,49 @@
                 }
             }
 
-            notifyWindowsChanged();
+            sendEventsForChangedWindowsLocked(oldWindowList, oldWindowsById);
+
+            final int oldWindowCount = oldWindowList.size();
+            for (int i = oldWindowCount - 1; i >= 0; i--) {
+                oldWindowList.remove(i).recycle();
+            }
+        }
+
+        private void sendEventsForChangedWindowsLocked(List<AccessibilityWindowInfo> oldWindows,
+                SparseArray<AccessibilityWindowInfo> oldWindowsById) {
+            List<AccessibilityEvent> events = new ArrayList<>();
+            // Send events for all removed windows
+            final int oldWindowsCount = oldWindows.size();
+            for (int i = 0; i < oldWindowsCount; i++) {
+                final AccessibilityWindowInfo window = oldWindows.get(i);
+                if (mA11yWindowInfoById.get(window.getId()) == null) {
+                    events.add(AccessibilityEvent.obtainWindowsChangedEvent(
+                            window.getId(), AccessibilityEvent.WINDOWS_CHANGE_REMOVED));
+                }
+            }
+
+            // Look for other changes
+            int oldWindowIndex = 0;
+            final int newWindowCount = mWindows.size();
+            for (int i = 0; i < newWindowCount; i++) {
+                final AccessibilityWindowInfo newWindow = mWindows.get(i);
+                final AccessibilityWindowInfo oldWindow = oldWindowsById.get(newWindow.getId());
+                if (oldWindow == null) {
+                    events.add(AccessibilityEvent.obtainWindowsChangedEvent(
+                            newWindow.getId(), AccessibilityEvent.WINDOWS_CHANGE_ADDED));
+                } else {
+                    int changes = newWindow.differenceFrom(oldWindow);
+                    if (changes !=  0) {
+                        events.add(AccessibilityEvent.obtainWindowsChangedEvent(
+                                newWindow.getId(), changes));
+                    }
+                }
+            }
+
+            final int numEvents = events.size();
+            for (int i = 0; i < numEvents; i++) {
+                sendAccessibilityEventLocked(events.get(i), mCurrentUserId);
+            }
         }
 
         public boolean computePartialInteractiveRegionForWindowLocked(int windowId,
@@ -3243,7 +3300,7 @@
         }
 
         public void updateEventSourceLocked(AccessibilityEvent event) {
-            if ((event.getEventType() & RETRIEVAL_ALLOWING_EVENT_TYPES) == 0) {
+            if ((event.getEventType() & KEEP_SOURCE_EVENT_TYPES) == 0) {
                 event.setSource((View) null);
             }
         }
@@ -3357,46 +3414,55 @@
 
         private void setActiveWindowLocked(int windowId) {
             if (mActiveWindowId != windowId) {
+                sendAccessibilityEventLocked(
+                        AccessibilityEvent.obtainWindowsChangedEvent(
+                                mActiveWindowId, AccessibilityEvent.WINDOWS_CHANGE_ACTIVE),
+                        mCurrentUserId);
+
                 mActiveWindowId = windowId;
                 if (mWindows != null) {
                     final int windowCount = mWindows.size();
                     for (int i = 0; i < windowCount; i++) {
                         AccessibilityWindowInfo window = mWindows.get(i);
-                        window.setActive(window.getId() == windowId);
+                        if (window.getId() == windowId) {
+                            window.setActive(true);
+                            sendAccessibilityEventLocked(
+                                    AccessibilityEvent.obtainWindowsChangedEvent(windowId,
+                                            AccessibilityEvent.WINDOWS_CHANGE_ACTIVE),
+                                    mCurrentUserId);
+                        } else {
+                            window.setActive(false);
+                        }
                     }
                 }
-                notifyWindowsChanged();
             }
         }
 
         private void setAccessibilityFocusedWindowLocked(int windowId) {
             if (mAccessibilityFocusedWindowId != windowId) {
+                sendAccessibilityEventLocked(
+                        AccessibilityEvent.obtainWindowsChangedEvent(
+                                mAccessibilityFocusedWindowId,
+                                WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED),
+                        mCurrentUserId);
+
                 mAccessibilityFocusedWindowId = windowId;
                 if (mWindows != null) {
                     final int windowCount = mWindows.size();
                     for (int i = 0; i < windowCount; i++) {
                         AccessibilityWindowInfo window = mWindows.get(i);
-                        window.setAccessibilityFocused(window.getId() == windowId);
+                        if (window.getId() == windowId) {
+                            window.setAccessibilityFocused(true);
+                            sendAccessibilityEventLocked(
+                                    AccessibilityEvent.obtainWindowsChangedEvent(
+                                            windowId, WINDOWS_CHANGE_ACCESSIBILITY_FOCUSED),
+                                    mCurrentUserId);
+
+                        } else {
+                            window.setAccessibilityFocused(false);
+                        }
                     }
                 }
-
-                notifyWindowsChanged();
-            }
-        }
-
-        public void notifyWindowsChanged() {
-            if (mWindowsForAccessibilityCallback == null) {
-                return;
-            }
-            final long identity = Binder.clearCallingIdentity();
-            try {
-                // Let the client know the windows changed.
-                AccessibilityEvent event = AccessibilityEvent.obtain(
-                        AccessibilityEvent.TYPE_WINDOWS_CHANGED);
-                event.setEventTime(SystemClock.uptimeMillis());
-                sendAccessibilityEvent(event, mCurrentUserId);
-            } finally {
-                Binder.restoreCallingIdentity(identity);
             }
         }
 
diff --git a/services/accessibility/java/com/android/server/accessibility/GestureUtils.java b/services/accessibility/java/com/android/server/accessibility/GestureUtils.java
index abfdb68..d5b53bc 100644
--- a/services/accessibility/java/com/android/server/accessibility/GestureUtils.java
+++ b/services/accessibility/java/com/android/server/accessibility/GestureUtils.java
@@ -40,12 +40,6 @@
         return (deltaTime >= timeout);
     }
 
-    public static boolean isSamePointerContext(MotionEvent first, MotionEvent second) {
-        return (first.getPointerIdBits() == second.getPointerIdBits()
-                && first.getPointerId(first.getActionIndex())
-                        == second.getPointerId(second.getActionIndex()));
-    }
-
     /**
      * Determines whether a two pointer gesture is a dragging one.
      *
diff --git a/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java b/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
index 9b2b4eb..74d2ddd 100644
--- a/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
+++ b/services/accessibility/java/com/android/server/accessibility/MagnificationGestureHandler.java
@@ -229,7 +229,7 @@
     }
 
     void clearAndTransitionToStateDetecting() {
-        mCurrentState = mDelegatingState;
+        mCurrentState = mDetectingState;
         mDetectingState.clear();
         mViewportDraggingState.clear();
         mPanningScalingState.clear();
@@ -649,14 +649,19 @@
                 break;
                 case ACTION_MOVE: {
                     if (isFingerDown()
-                            && distance(mLastDown, /* move */ event) > mSwipeMinDistance
-                            // For convenience, viewport dragging on 3tap&hold takes precedence
-                            // over insta-delegating on 3tap&swipe
-                            // (which is a rare combo to be used aside from magnification)
-                            && !isMultiTapTriggered(2 /* taps */)) {
+                            && distance(mLastDown, /* move */ event) > mSwipeMinDistance) {
 
-                        // Swipe detected - delegate skipping timeout
-                        transitionToDelegatingStateAndClear();
+                        // Swipe detected - transition immediately
+
+                        // For convenience, viewport dragging takes precedence
+                        // over insta-delegating on 3tap&swipe
+                        // (which is a rare combo to be used aside from magnification)
+                        if (isMultiTapTriggered(2 /* taps */)) {
+                            transitionTo(mViewportDraggingState);
+                            clear();
+                        } else {
+                            transitionToDelegatingStateAndClear();
+                        }
                     }
                 }
                 break;
@@ -755,10 +760,10 @@
                 int policyFlags) {
             if (event.getActionMasked() == ACTION_DOWN) {
                 mPreLastDown = mLastDown;
-                mLastDown = event;
+                mLastDown = MotionEvent.obtain(event);
             } else if (event.getActionMasked() == ACTION_UP) {
                 mPreLastUp = mLastUp;
-                mLastUp = event;
+                mLastUp = MotionEvent.obtain(event);
             }
 
             MotionEventInfo info = MotionEventInfo.obtain(event, rawEvent,
diff --git a/services/backup/java/com/android/server/backup/BackupManagerConstants.java b/services/backup/java/com/android/server/backup/BackupManagerConstants.java
index 537592e..b17f794 100644
--- a/services/backup/java/com/android/server/backup/BackupManagerConstants.java
+++ b/services/backup/java/com/android/server/backup/BackupManagerConstants.java
@@ -121,7 +121,7 @@
                 DEFAULT_FULL_BACKUP_REQUIRE_CHARGING);
         mFullBackupRequiredNetworkType = mParser.getInt(FULL_BACKUP_REQUIRED_NETWORK_TYPE,
                 DEFAULT_FULL_BACKUP_REQUIRED_NETWORK_TYPE);
-        final String backupFinishedNotificationReceivers = mParser.getString(
+        String backupFinishedNotificationReceivers = mParser.getString(
                 BACKUP_FINISHED_NOTIFICATION_RECEIVERS,
                 DEFAULT_BACKUP_FINISHED_NOTIFICATION_RECEIVERS);
         if (backupFinishedNotificationReceivers.isEmpty()) {
@@ -190,6 +190,9 @@
         return mFullBackupRequiredNetworkType;
     }
 
+    /**
+     * Returns an array of package names that should be notified whenever a backup finishes.
+     */
     public synchronized String[] getBackupFinishedNotificationReceivers() {
         if (RefactoredBackupManagerService.DEBUG_SCHEDULING) {
             Slog.v(TAG, "getBackupFinishedNotificationReceivers(...) returns "
diff --git a/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java b/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
index 3a37459..51c44e1 100644
--- a/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
+++ b/services/backup/java/com/android/server/backup/RefactoredBackupManagerService.java
@@ -1424,6 +1424,8 @@
             final Intent notification = new Intent();
             notification.setAction(BACKUP_FINISHED_ACTION);
             notification.setPackage(receiver);
+            notification.addFlags(Intent.FLAG_INCLUDE_STOPPED_PACKAGES |
+                    Intent.FLAG_RECEIVER_FOREGROUND);
             notification.putExtra(BACKUP_FINISHED_PACKAGE_EXTRA, packageName);
             mContext.sendBroadcastAsUser(notification, UserHandle.OWNER);
         }
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 0a42aa9..21085fa 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -3116,6 +3116,10 @@
         // Need to make sure the pinned stack exist so we can resize it below...
         stack = display.getOrCreateStack(WINDOWING_MODE_PINNED, r.getActivityType(), ON_TOP);
 
+        // Calculate the target bounds here before the task is reparented back into pinned windowing
+        // mode (which will reset the saved bounds)
+        final Rect destBounds = stack.getDefaultPictureInPictureBounds(aspectRatio);
+
         try {
             final TaskRecord task = r.getTask();
             // Resize the pinned stack to match the current size of the task the activity we are
@@ -3154,11 +3158,6 @@
             mWindowManager.continueSurfaceLayout();
         }
 
-        // Calculate the default bounds (don't use existing stack bounds as we may have just created
-        // the stack, and schedule the start of the animation into PiP (the bounds animator that
-        // is triggered by this is posted on another thread)
-        final Rect destBounds = stack.getDefaultPictureInPictureBounds(aspectRatio);
-
         stack.animateResizePinnedStack(sourceHintBounds, destBounds, -1 /* animationDuration */,
                 true /* fromFullscreen */);
 
diff --git a/services/core/java/com/android/server/am/ClientLifecycleManager.java b/services/core/java/com/android/server/am/ClientLifecycleManager.java
index 1e70809..014f708 100644
--- a/services/core/java/com/android/server/am/ClientLifecycleManager.java
+++ b/services/core/java/com/android/server/am/ClientLifecycleManager.java
@@ -21,7 +21,6 @@
 import android.app.servertransaction.ClientTransaction;
 import android.app.servertransaction.ClientTransactionItem;
 import android.app.servertransaction.ActivityLifecycleItem;
-import android.os.Binder;
 import android.os.IBinder;
 import android.os.RemoteException;
 
@@ -44,12 +43,8 @@
      */
     void scheduleTransaction(ClientTransaction transaction) throws RemoteException {
         transaction.schedule();
-        if (!(transaction.getClient() instanceof Binder)) {
-            // If client is not an instance of Binder - it's a remote call and at this point it is
-            // safe to recycle the object. All objects used for local calls will be recycled after
-            // the transaction is executed on client in ActivityThread.
-            transaction.recycle();
-        }
+        // TODO: b/70616950
+        //transaction.recycle();
     }
 
     /**
diff --git a/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java b/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
index 3064144..ef51665 100644
--- a/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
+++ b/services/core/java/com/android/server/broadcastradio/BroadcastRadioService.java
@@ -25,6 +25,7 @@
 import android.hardware.radio.ITunerCallback;
 import android.hardware.radio.RadioManager;
 import android.os.ParcelableException;
+import android.util.Slog;
 
 import com.android.server.SystemService;
 
@@ -33,6 +34,8 @@
 import java.util.OptionalInt;
 
 public class BroadcastRadioService extends SystemService {
+    private static final String TAG = "BcRadioSrv";
+
     private final ServiceImpl mServiceImpl = new ServiceImpl();
 
     private final com.android.server.broadcastradio.hal1.BroadcastRadioService mHal1 =
@@ -84,13 +87,14 @@
         @Override
         public ITuner openTuner(int moduleId, RadioManager.BandConfig bandConfig,
                 boolean withAudio, ITunerCallback callback) {
+            Slog.i(TAG, "openTuner(" + moduleId + ", _, " + withAudio + ", _)");
             enforcePolicyAccess();
             if (callback == null) {
                 throw new IllegalArgumentException("Callback must not be empty");
             }
             synchronized (mLock) {
                 if (mHal2.hasModule(moduleId)) {
-                    throw new RuntimeException("Not implemented");
+                    return mHal2.openSession(moduleId, callback);
                 } else {
                     return mHal1.openTuner(moduleId, bandConfig, withAudio, callback);
                 }
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 7629477..413a27c 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/BroadcastRadioService.java
@@ -17,6 +17,8 @@
 package com.android.server.broadcastradio.hal2;
 
 import android.annotation.NonNull;
+import android.hardware.radio.ITuner;
+import android.hardware.radio.ITunerCallback;
 import android.hardware.radio.RadioManager;
 import android.hardware.broadcastradio.V2_0.IBroadcastRadio;
 import android.hidl.manager.V1_0.IServiceManager;
@@ -28,6 +30,7 @@
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.stream.Collectors;
 
 public class BroadcastRadioService {
@@ -76,4 +79,15 @@
     public boolean hasModule(int id) {
         return mModules.containsKey(id);
     }
+
+    public ITuner openSession(int moduleId, @NonNull ITunerCallback callback) {
+        Objects.requireNonNull(callback);
+
+        RadioModule module = mModules.get(moduleId);
+        if (module == null) {
+            throw new IllegalArgumentException("Invalid module ID");
+        }
+
+        return module.openSession(callback);
+    }
 }
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 c3394e9..434e262 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/Convert.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/Convert.java
@@ -18,12 +18,17 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.hardware.broadcastradio.V2_0.AmFmBandRange;
+import android.hardware.broadcastradio.V2_0.AmFmRegionConfig;
 import android.hardware.broadcastradio.V2_0.Properties;
+import android.hardware.broadcastradio.V2_0.Result;
 import android.hardware.broadcastradio.V2_0.VendorKeyValue;
 import android.hardware.radio.ProgramSelector;
 import android.hardware.radio.RadioManager;
+import android.os.ParcelableException;
 import android.util.Slog;
 
+import java.util.ArrayList;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -35,6 +40,28 @@
 class Convert {
     private static final String TAG = "BcRadio2Srv.convert";
 
+    static void throwOnError(String action, int result) {
+        switch (result) {
+            case Result.OK:
+                return;
+            case Result.UNKNOWN_ERROR:
+                throw new ParcelableException(new RuntimeException(action + ": UNKNOWN_ERROR"));
+            case Result.INTERNAL_ERROR:
+                throw new ParcelableException(new RuntimeException(action + ": INTERNAL_ERROR"));
+            case Result.INVALID_ARGUMENTS:
+                throw new IllegalArgumentException(action + ": INVALID_ARGUMENTS");
+            case Result.INVALID_STATE:
+                throw new IllegalStateException(action + ": INVALID_STATE");
+            case Result.NOT_SUPPORTED:
+                throw new UnsupportedOperationException(action + ": NOT_SUPPORTED");
+            case Result.TIMEOUT:
+                throw new ParcelableException(new RuntimeException(action + ": TIMEOUT"));
+            default:
+                throw new ParcelableException(new RuntimeException(
+                        action + ": unknown error (" + result + ")"));
+        }
+    }
+
     private static @NonNull Map<String, String>
     vendorInfoFromHal(@Nullable List<VendorKeyValue> info) {
         if (info == null) return Collections.emptyMap();
@@ -94,12 +121,47 @@
         return pTypes.stream().mapToInt(Integer::intValue).toArray();
     }
 
-    static @NonNull RadioManager.ModuleProperties
-    propertiesFromHal(int id, @NonNull String serviceName, Properties prop) {
-        Objects.requireNonNull(prop);
+    private static @NonNull RadioManager.BandDescriptor[]
+    amfmConfigToBands(@Nullable AmFmRegionConfig config) {
+        if (config == null) return new RadioManager.BandDescriptor[0];
 
-        // TODO(b/69958423): implement region info
-        RadioManager.BandDescriptor[] bands = new RadioManager.BandDescriptor[0];
+        int len = config.ranges.size();
+        List<RadioManager.BandDescriptor> bands = new ArrayList<>(len);
+
+        // Just a dummy value.
+        int region = RadioManager.REGION_ITU_1;
+
+        for (AmFmBandRange range : config.ranges) {
+            FrequencyBand bandType = Utils.getBand(range.lowerBound);
+            if (bandType == FrequencyBand.UNKNOWN) {
+                Slog.e(TAG, "Unknown frequency band at " + range.lowerBound + "kHz");
+                continue;
+            }
+            if (bandType == FrequencyBand.FM) {
+                bands.add(new RadioManager.FmBandDescriptor(region, RadioManager.BAND_FM,
+                    range.lowerBound, range.upperBound, range.spacing,
+
+                    // TODO(b/69958777): stereo, rds, ta, af, ea
+                    true, true, true, true, true
+                ));
+            } else {  // AM
+                bands.add(new RadioManager.AmBandDescriptor(region, RadioManager.BAND_AM,
+                    range.lowerBound, range.upperBound, range.spacing,
+
+                    // TODO(b/69958777): stereo
+                    true
+                ));
+            }
+        }
+
+        return bands.toArray(new RadioManager.BandDescriptor[bands.size()]);
+    }
+
+    static @NonNull RadioManager.ModuleProperties
+    propertiesFromHal(int id, @NonNull String serviceName, @NonNull Properties prop,
+            @Nullable AmFmRegionConfig amfmConfig) {
+        Objects.requireNonNull(serviceName);
+        Objects.requireNonNull(prop);
 
         int[] supportedIdentifierTypes = prop.supportedIdentifierTypes.stream().
                 mapToInt(Integer::intValue).toArray();
@@ -123,7 +185,7 @@
                 1,      // numAudioSources
                 false,  // isCaptureSupported
 
-                bands,
+                amfmConfigToBands(amfmConfig),
                 true,  // isBgScanSupported is deprecated
                 supportedProgramTypes,
                 supportedIdentifierTypes,
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/Mutable.java b/services/core/java/com/android/server/broadcastradio/hal2/Mutable.java
new file mode 100644
index 0000000..a9d8054
--- /dev/null
+++ b/services/core/java/com/android/server/broadcastradio/hal2/Mutable.java
@@ -0,0 +1,46 @@
+/**
+ * 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.broadcastradio.hal2;
+
+/**
+ * A wrapper class for mutable objects to be used in non-mutable contexts
+ * (i.e. final variables catched in lambda closures).
+ *
+ * @param <E> type of boxed value.
+ */
+final class Mutable<E> {
+    /**
+     * A mutable value.
+     */
+    public E value;
+
+    /**
+     * Initialize value with null pointer.
+     */
+    public Mutable() {
+        value = null;
+    }
+
+    /**
+     * Initialize value with specific value.
+     *
+     * @param value initial value.
+     */
+    public Mutable(E value) {
+        this.value = value;
+    }
+}
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 34c1b0c..8a7ac73 100644
--- a/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java
+++ b/services/core/java/com/android/server/broadcastradio/hal2/RadioModule.java
@@ -18,9 +18,15 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.hardware.radio.ITuner;
 import android.hardware.radio.RadioManager;
+import android.hardware.broadcastradio.V2_0.AmFmRegionConfig;
 import android.hardware.broadcastradio.V2_0.IBroadcastRadio;
+import android.hardware.broadcastradio.V2_0.ITunerSession;
+import android.hardware.broadcastradio.V2_0.Result;
+import android.os.ParcelableException;
 import android.os.RemoteException;
+import android.util.MutableInt;
 import android.util.Slog;
 
 import java.util.Objects;
@@ -42,8 +48,13 @@
             IBroadcastRadio service = IBroadcastRadio.getService();
             if (service == null) return null;
 
+            Mutable<AmFmRegionConfig> amfmConfig = new Mutable<>();
+            service.getAmFmRegionConfig(false, (int result, AmFmRegionConfig config) -> {
+                if (result == Result.OK) amfmConfig.value = config;
+            });
+
             RadioManager.ModuleProperties prop =
-                    Convert.propertiesFromHal(idx, fqName, service.getProperties());
+                    Convert.propertiesFromHal(idx, fqName, service.getProperties(), amfmConfig.value);
 
             return new RadioModule(service, prop);
         } catch (RemoteException ex) {
@@ -51,4 +62,44 @@
             return null;
         }
     }
+
+    public @NonNull ITuner openSession(@NonNull android.hardware.radio.ITunerCallback userCb) {
+        TunerCallback cb = new TunerCallback(Objects.requireNonNull(userCb));
+        Mutable<ITunerSession> hwSession = new Mutable<>();
+        MutableInt halResult = new MutableInt(Result.UNKNOWN_ERROR);
+
+        try {
+            mService.openSession(cb, (int result, ITunerSession session) -> {
+                hwSession.value = session;
+                halResult.value = result;
+            });
+        } catch (RemoteException ex) {
+            Slog.e(TAG, "failed to open session", ex);
+            throw new ParcelableException(ex);
+        }
+
+        Convert.throwOnError("openSession", halResult.value);
+        Objects.requireNonNull(hwSession.value);
+
+        TunerSession session = new TunerSession(hwSession.value, cb);
+
+        // send out legacy callback about band configuration
+        RadioManager.BandDescriptor[] bands = mProperties.getBands();
+        if (bands != null && bands.length > 0) {
+            RadioManager.BandDescriptor descr = bands[0];  // just pick first
+            Mutable<RadioManager.BandConfig> config = new Mutable<>();
+            if (descr instanceof RadioManager.FmBandDescriptor) {
+                config.value = new RadioManager.FmBandConfig((RadioManager.FmBandDescriptor)descr);
+            } else if (descr instanceof RadioManager.AmBandDescriptor) {
+                config.value = new RadioManager.AmBandConfig((RadioManager.AmBandDescriptor)descr);
+            } else {
+                Slog.w(TAG, "Descriptor is neither AM nor FM");
+            }
+            if (config.value != null) {
+                TunerCallback.dispatch(() -> userCb.onConfigurationChanged(config.value));
+            }
+        }
+
+        return session;
+    }
 }
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java b/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java
new file mode 100644
index 0000000..5ee6a4c
--- /dev/null
+++ b/services/core/java/com/android/server/broadcastradio/hal2/TunerCallback.java
@@ -0,0 +1,66 @@
+/**
+ * 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.broadcastradio.hal2;
+
+import android.annotation.NonNull;
+import android.hardware.broadcastradio.V2_0.ITunerCallback;
+import android.hardware.broadcastradio.V2_0.ProgramInfo;
+import android.hardware.broadcastradio.V2_0.ProgramListChunk;
+import android.hardware.broadcastradio.V2_0.ProgramSelector;
+import android.hardware.broadcastradio.V2_0.VendorKeyValue;
+import android.os.RemoteException;
+import android.util.Slog;
+
+import java.util.ArrayList;
+import java.util.Objects;
+
+class TunerCallback extends ITunerCallback.Stub {
+    private static final String TAG = "BcRadio2Srv.cb";
+
+    final android.hardware.radio.ITunerCallback mCb;
+
+    interface RunnableThrowingRemoteException {
+        void run() throws RemoteException;
+    }
+
+    TunerCallback(@NonNull android.hardware.radio.ITunerCallback clientCallback) {
+        mCb = Objects.requireNonNull(clientCallback);
+    }
+
+    static void dispatch(RunnableThrowingRemoteException func) {
+        try {
+            func.run();
+        } catch (RemoteException ex) {
+            Slog.e(TAG, "callback call failed", ex);
+        }
+    }
+
+    @Override
+    public void onTuneFailed(int result, ProgramSelector selector) {}
+
+    @Override
+    public void onCurrentProgramInfoChanged(ProgramInfo info) {}
+
+    @Override
+    public void onProgramListUpdated(ProgramListChunk chunk) {}
+
+    @Override
+    public void onAntennaStateChange(boolean connected) {}
+
+    @Override
+    public void onParametersUpdated(ArrayList<VendorKeyValue> 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
new file mode 100644
index 0000000..e8faf3d
--- /dev/null
+++ b/services/core/java/com/android/server/broadcastradio/hal2/TunerSession.java
@@ -0,0 +1,137 @@
+/**
+ * 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.broadcastradio.hal2;
+
+import android.annotation.NonNull;
+import android.graphics.Bitmap;
+import android.hardware.broadcastradio.V2_0.ITunerSession;
+import android.hardware.radio.ITuner;
+import android.hardware.radio.ProgramSelector;
+import android.hardware.radio.RadioManager;
+import android.util.Slog;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+class TunerSession extends ITuner.Stub {
+    private static final String TAG = "BcRadio2Srv.session";
+
+    private final Object mLock = new Object();
+
+    private final ITunerSession mHwSession;
+    private final TunerCallback mCallback;
+    private boolean mIsClosed = false;
+
+    TunerSession(@NonNull ITunerSession hwSession, @NonNull TunerCallback callback) {
+        mHwSession = Objects.requireNonNull(hwSession);
+        mCallback = Objects.requireNonNull(callback);
+    }
+
+    @Override
+    public void close() {
+        synchronized (mLock) {
+            if (mIsClosed) return;
+            mIsClosed = true;
+        }
+    }
+
+    @Override
+    public boolean isClosed() {
+        return mIsClosed;
+    }
+
+    private void checkNotClosedLocked() {
+        if (mIsClosed) {
+            throw new IllegalStateException("Tuner is closed, no further operations are allowed");
+        }
+    }
+
+    @Override
+    public void setConfiguration(RadioManager.BandConfig config) {}
+
+    @Override
+    public RadioManager.BandConfig getConfiguration() {
+        return null;
+    }
+
+    @Override
+    public void setMuted(boolean mute) {}
+
+    @Override
+    public boolean isMuted() {
+        return false;
+    }
+
+    @Override
+    public void step(boolean directionDown, boolean skipSubChannel) {}
+
+    @Override
+    public void scan(boolean directionDown, boolean skipSubChannel) {}
+
+    @Override
+    public void tune(ProgramSelector selector) {}
+
+    @Override
+    public void cancel() {}
+
+    @Override
+    public void cancelAnnouncement() {}
+
+    @Override
+    public RadioManager.ProgramInfo getProgramInformation() {
+        return null;
+    }
+
+    @Override
+    public Bitmap getImage(int id) {
+        return null;
+    }
+
+    @Override
+    public boolean startBackgroundScan() {
+        return false;
+    }
+
+    @Override
+    public List<RadioManager.ProgramInfo> getProgramList(Map vendorFilter) {
+        return null;
+    }
+
+    @Override
+    public boolean isAnalogForced() {
+        return false;
+    }
+
+    @Override
+    public void setAnalogForced(boolean isForced) {}
+
+    @Override
+    public Map setParameters(Map parameters) {
+        return null;
+    }
+
+    @Override
+    public Map getParameters(List<String> keys) {
+        return null;
+    }
+
+    @Override
+    public boolean isAntennaConnected() {
+        return true;
+    }
+}
diff --git a/services/core/java/com/android/server/broadcastradio/hal2/Utils.java b/services/core/java/com/android/server/broadcastradio/hal2/Utils.java
new file mode 100644
index 0000000..3520f37
--- /dev/null
+++ b/services/core/java/com/android/server/broadcastradio/hal2/Utils.java
@@ -0,0 +1,40 @@
+/**
+ * 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.broadcastradio.hal2;
+
+enum FrequencyBand {
+    UNKNOWN,
+    FM,
+    AM_LW,
+    AM_MW,
+    AM_SW,
+};
+
+class Utils {
+    private static final String TAG = "BcRadio2Srv.utils";
+
+    static FrequencyBand getBand(int freq) {
+        // keep in sync with hardware/interfaces/broadcastradio/common/utils2x/Utils.cpp
+        if (freq < 30) return FrequencyBand.UNKNOWN;
+        if (freq < 500) return FrequencyBand.AM_LW;
+        if (freq < 1705) return FrequencyBand.AM_MW;
+        if (freq < 30000) return FrequencyBand.AM_SW;
+        if (freq < 60000) return FrequencyBand.UNKNOWN;
+        if (freq < 110000) return FrequencyBand.FM;
+        return FrequencyBand.UNKNOWN;
+    }
+}
diff --git a/services/core/java/com/android/server/connectivity/Vpn.java b/services/core/java/com/android/server/connectivity/Vpn.java
index 7715727..c7a4315 100644
--- a/services/core/java/com/android/server/connectivity/Vpn.java
+++ b/services/core/java/com/android/server/connectivity/Vpn.java
@@ -305,6 +305,7 @@
         } else {
             for (Network underlying : underlyingNetworks) {
                 final NetworkCapabilities underlyingCaps = cm.getNetworkCapabilities(underlying);
+                if (underlyingCaps == null) continue;
                 for (int underlyingType : underlyingCaps.getTransportTypes()) {
                     transportTypes = ArrayUtils.appendInt(transportTypes, underlyingType);
                 }
diff --git a/services/core/java/com/android/server/display/BrightnessMappingStrategy.java b/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
index 3b9d40f..0b62907 100644
--- a/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
+++ b/services/core/java/com/android/server/display/BrightnessMappingStrategy.java
@@ -17,6 +17,8 @@
 package com.android.server.display;
 
 import android.annotation.Nullable;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
 import android.hardware.display.BrightnessConfiguration;
 import android.os.PowerManager;
 import android.util.MathUtils;
@@ -41,11 +43,30 @@
     private static final boolean DEBUG = false;
 
     @Nullable
-    public static BrightnessMappingStrategy create(
-            float[] luxLevels, int[] brightnessLevelsBacklight, float[] brightnessLevelsNits,
-            float[] nitsRange, int[] backlightRange) {
+    public static BrightnessMappingStrategy create(Resources resources) {
+        float[] luxLevels = getLuxLevels(resources.getIntArray(
+                com.android.internal.R.array.config_autoBrightnessLevels));
+        int[] brightnessLevelsBacklight = resources.getIntArray(
+                com.android.internal.R.array.config_autoBrightnessLcdBacklightValues);
+        float[] brightnessLevelsNits = getFloatArray(resources.obtainTypedArray(
+                com.android.internal.R.array.config_autoBrightnessDisplayValuesNits));
+
+        float[] nitsRange = getFloatArray(resources.obtainTypedArray(
+                com.android.internal.R.array.config_screenBrightnessNits));
+        int[] backlightRange = resources.getIntArray(
+                com.android.internal.R.array.config_screenBrightnessBacklight);
+
         if (isValidMapping(nitsRange, backlightRange)
                 && isValidMapping(luxLevels, brightnessLevelsNits)) {
+            int minimumBacklight = resources.getInteger(
+                    com.android.internal.R.integer.config_screenBrightnessSettingMinimum);
+            int maximumBacklight = resources.getInteger(
+                    com.android.internal.R.integer.config_screenBrightnessSettingMaximum);
+            if (backlightRange[0] > minimumBacklight
+                    || backlightRange[backlightRange.length - 1] < maximumBacklight) {
+                Slog.w(TAG, "Screen brightness mapping does not cover whole range of available"
+                        + " backlight values, autobrightness functionality may be impaired.");
+            }
             BrightnessConfiguration.Builder builder = new BrightnessConfiguration.Builder();
             builder.setCurve(luxLevels, brightnessLevelsNits);
             return new PhysicalMappingStrategy(builder.build(), nitsRange, backlightRange);
@@ -56,6 +77,25 @@
         }
     }
 
+    private static float[] getLuxLevels(int[] lux) {
+        // The first control point is implicit and always at 0 lux.
+        float[] levels = new float[lux.length + 1];
+        for (int i = 0; i < lux.length; i++) {
+            levels[i + 1] = (float) lux[i];
+        }
+        return levels;
+    }
+
+    private static float[] getFloatArray(TypedArray array) {
+        final int N = array.length();
+        float[] vals = new float[N];
+        for (int i = 0; i < N; i++) {
+            vals[i] = array.getFloat(i, -1.0f);
+        }
+        array.recycle();
+        return vals;
+    }
+
     private static boolean isValidMapping(float[] x, float[] y) {
         if (x == null || y == null || x.length == 0 || y.length == 0) {
             return false;
@@ -124,10 +164,17 @@
      * brightness and 0 is the display at minimum brightness.
      *
      * @param lux The current ambient brightness in lux.
-     * @return The desired brightness of the display compressed to the range [0, 1.0].
+     * @return The desired brightness of the display normalized to the range [0, 1.0].
      */
     public abstract float getBrightness(float lux);
 
+    /**
+     * Gets the display's brightness in nits for the given backlight value.
+     *
+     * Returns -1.0f if there's no available mapping for the backlight to nits.
+     */
+    public abstract float getNits(int backlight);
+
     public abstract void dump(PrintWriter pw);
 
     private static float normalizeAbsoluteBrightness(int brightness) {
@@ -186,6 +233,11 @@
         }
 
         @Override
+        public float getNits(int backlight) {
+            return -1.0f;
+        }
+
+        @Override
         public void dump(PrintWriter pw) {
             pw.println("SimpleMappingStrategy");
             pw.println("  mSpline=" + mSpline);
@@ -209,7 +261,11 @@
 
         // A spline mapping from nits to the corresponding backlight value, normalized to the range
         // [0, 1.0].
-        private final Spline mBacklightSpline;
+        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;
@@ -227,19 +283,18 @@
 
             // Setup the backlight spline
             final int N = nits.length;
-            float[] x = new float[N];
-            float[] y = new float[N];
+            float[] normalizedBacklight = new float[N];
             for (int i = 0; i < N; i++) {
-                x[i] = nits[i];
-                y[i] = normalizeAbsoluteBrightness(backlight[i]);
+                normalizedBacklight[i] = normalizeAbsoluteBrightness(backlight[i]);
             }
 
-            mBacklightSpline = Spline.createSpline(x, y);
+            mNitsToBacklightSpline = Spline.createSpline(nits, normalizedBacklight);
+            mBacklightToNitsSpline = Spline.createSpline(normalizedBacklight, nits);
             if (DEBUG) {
-                Slog.d(TAG, "Backlight spline: " + mBacklightSpline);
+                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, mBacklightSpline.interpolate(v)));
+                                "  %7.1f: %7.1f", v, mNitsToBacklightSpline.interpolate(v)));
                 }
             }
 
@@ -275,7 +330,12 @@
 
         @Override
         public float getBrightness(float lux) {
-            return mBacklightSpline.interpolate(mBrightnessSpline.interpolate(lux));
+            return mNitsToBacklightSpline.interpolate(mBrightnessSpline.interpolate(lux));
+        }
+
+        @Override
+        public float getNits(int backlight) {
+            return mBacklightToNitsSpline.interpolate(normalizeAbsoluteBrightness(backlight));
         }
 
         @Override
@@ -283,7 +343,7 @@
             pw.println("PhysicalMappingStrategy");
             pw.println("  mConfig=" + mConfig);
             pw.println("  mBrightnessSpline=" + mBrightnessSpline);
-            pw.println("  mBacklightSpline=" + mBacklightSpline);
+            pw.println("  mNitsToBacklightSpline=" + mNitsToBacklightSpline);
         }
     }
 }
diff --git a/services/core/java/com/android/server/display/BrightnessTracker.java b/services/core/java/com/android/server/display/BrightnessTracker.java
index 42247f9..cbb1c01 100644
--- a/services/core/java/com/android/server/display/BrightnessTracker.java
+++ b/services/core/java/com/android/server/display/BrightnessTracker.java
@@ -24,7 +24,6 @@
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.content.pm.ParceledListSlice;
-import android.database.ContentObserver;
 import android.hardware.Sensor;
 import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
@@ -34,6 +33,8 @@
 import android.os.BatteryManager;
 import android.os.Environment;
 import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
 import android.os.PowerManager;
 import android.os.RemoteException;
 import android.os.SystemClock;
@@ -88,7 +89,7 @@
 
     private static final String TAG_EVENTS = "events";
     private static final String TAG_EVENT = "event";
-    private static final String ATTR_BRIGHTNESS = "brightness";
+    private static final String ATTR_NITS = "nits";
     private static final String ATTR_TIMESTAMP = "timestamp";
     private static final String ATTR_PACKAGE_NAME = "packageName";
     private static final String ATTR_USER = "user";
@@ -97,7 +98,10 @@
     private static final String ATTR_BATTERY_LEVEL = "batteryLevel";
     private static final String ATTR_NIGHT_MODE = "nightMode";
     private static final String ATTR_COLOR_TEMPERATURE = "colorTemperature";
-    private static final String ATTR_LAST_BRIGHTNESS = "lastBrightness";
+    private static final String ATTR_LAST_NITS = "lastNits";
+
+    private static final int MSG_BACKGROUND_START = 0;
+    private static final int MSG_BRIGHTNESS_CHANGED = 1;
 
     // Lock held while accessing mEvents, is held while writing events to flash.
     private final Object mEventsLock = new Object();
@@ -113,9 +117,7 @@
     private final Context mContext;
     private final ContentResolver mContentResolver;
     private Handler mBgHandler;
-    // mSettingsObserver, mBroadcastReceiver and mSensorListener should only be used on
-    // the mBgHandler thread.
-    private SettingsObserver mSettingsObserver;
+    // mBroadcastReceiver and mSensorListener should only be used on the mBgHandler thread.
     private BroadcastReceiver mBroadcastReceiver;
     private SensorListener mSensorListener;
 
@@ -126,9 +128,9 @@
     @GuardedBy("mDataCollectionLock")
     private float mLastBatteryLevel = Float.NaN;
     @GuardedBy("mDataCollectionLock")
-    private int mIgnoreBrightness = -1;
+    private float mLastBrightness = -1;
     @GuardedBy("mDataCollectionLock")
-    private int mLastBrightness = -1;
+    private boolean mStarted;
 
     private final Injector mInjector;
 
@@ -144,33 +146,31 @@
         }
     }
 
-    /** Start listening for brightness slider events */
-    public void start() {
+    /**
+     * Start listening for brightness slider events
+     *
+     * @param brightness the initial screen brightness
+     */
+    public void start(float initialBrightness) {
         if (DEBUG) {
             Slog.d(TAG, "Start");
         }
-        mBgHandler = mInjector.getBackgroundHandler();
+        mBgHandler = new TrackerHandler(mInjector.getBackgroundHandler().getLooper());
         mUserManager = mContext.getSystemService(UserManager.class);
 
-        mBgHandler.post(() -> backgroundStart());
+        mBgHandler.obtainMessage(MSG_BACKGROUND_START, (Float) initialBrightness).sendToTarget();
     }
 
-    private void backgroundStart() {
+    private void backgroundStart(float initialBrightness) {
         readEvents();
 
-        mLastBrightness = mInjector.getSystemIntForUser(mContentResolver,
-                Settings.System.SCREEN_BRIGHTNESS, -1,
-                UserHandle.USER_CURRENT);
-
         mSensorListener = new SensorListener();
 
+
         if (mInjector.isInteractive(mContext)) {
             mInjector.registerSensorListener(mContext, mSensorListener, mBgHandler);
         }
 
-        mSettingsObserver = new SettingsObserver(mBgHandler);
-        mInjector.registerBrightnessObserver(mContentResolver, mSettingsObserver);
-
         final IntentFilter intentFilter = new IntentFilter();
         intentFilter.addAction(Intent.ACTION_SHUTDOWN);
         intentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);
@@ -180,6 +180,10 @@
         mInjector.registerReceiver(mContext, mBroadcastReceiver, intentFilter);
 
         mInjector.scheduleIdleJob(mContext);
+        synchronized (mDataCollectionLock) {
+            mLastBrightness = initialBrightness;
+            mStarted = true;
+        }
     }
 
     /** Stop listening for events */
@@ -188,10 +192,14 @@
         if (DEBUG) {
             Slog.d(TAG, "Stop");
         }
+        mBgHandler.removeMessages(MSG_BACKGROUND_START);
         mInjector.unregisterSensorListener(mContext, mSensorListener);
         mInjector.unregisterReceiver(mContext, mBroadcastReceiver);
-        mInjector.unregisterBrightnessObserver(mContext, mSettingsObserver);
         mInjector.cancelIdleJob(mContext);
+
+        synchronized (mDataCollectionLock) {
+            mStarted = false;
+        }
     }
 
     /**
@@ -220,40 +228,45 @@
         return new ParceledListSlice<>(out);
     }
 
-    /** Sets brightness without logging the brightness change event */
-    public void setBrightness(int brightness, int userId) {
-        synchronized (mDataCollectionLock) {
-            mIgnoreBrightness = brightness;
-        }
-        mInjector.putSystemIntForUser(mContentResolver, Settings.System.SCREEN_BRIGHTNESS,
-                brightness, userId);
-    }
-
     public void persistEvents() {
         scheduleWriteEvents();
     }
 
-    private void handleBrightnessChanged() {
+    /**
+     * Notify the BrightnessTracker that the user has changed the brightness of the display.
+     */
+    public void notifyBrightnessChanged(float brightness, boolean userInitiated) {
         if (DEBUG) {
-            Slog.d(TAG, "Brightness change");
+            Slog.d(TAG, String.format("notifyBrightnessChanged(brightness=%f, userInitiated=%b)",
+                        brightness, userInitiated));
         }
-        final BrightnessChangeEvent event = new BrightnessChangeEvent();
-        event.timeStamp = mInjector.currentTimeMillis();
+        Message m = mBgHandler.obtainMessage(MSG_BRIGHTNESS_CHANGED,
+                userInitiated ? 1 : 0, 0 /*unused*/, (Float) brightness);
+        m.sendToTarget();
+    }
 
-        int brightness = mInjector.getSystemIntForUser(mContentResolver,
-                Settings.System.SCREEN_BRIGHTNESS, -1,
-                UserHandle.USER_CURRENT);
-
+    private void handleBrightnessChanged(float brightness, boolean userInitiated) {
+        final BrightnessChangeEvent event;
         synchronized (mDataCollectionLock) {
-            int previousBrightness = mLastBrightness;
-            mLastBrightness = brightness;
-
-            if (brightness == -1 || brightness == mIgnoreBrightness) {
-                // Notified of brightness change but no setting or self change so ignore.
-                mIgnoreBrightness = -1;
+            if (!mStarted) {
+                // Not currently gathering brightness change information
                 return;
             }
 
+            float previousBrightness = mLastBrightness;
+            mLastBrightness = brightness;
+
+            if (!userInitiated) {
+                // We want to record what current brightness is so that we know what the user
+                // changed it from, but if it wasn't user initiated then we don't want to record it
+                // as a BrightnessChangeEvent.
+                return;
+            }
+
+
+            event = new BrightnessChangeEvent();
+            event.timeStamp = mInjector.currentTimeMillis();
+
             final int readingCount = mLastSensorReadings.size();
             if (readingCount == 0) {
                 // No sensor data so ignore this.
@@ -386,7 +399,7 @@
             if (userSerialNo != -1 && toWrite[i].timeStamp > timeCutOff) {
                 mEvents.append(toWrite[i]);
                 out.startTag(null, TAG_EVENT);
-                out.attribute(null, ATTR_BRIGHTNESS, Integer.toString(toWrite[i].brightness));
+                out.attribute(null, ATTR_NITS, Float.toString(toWrite[i].brightness));
                 out.attribute(null, ATTR_TIMESTAMP, Long.toString(toWrite[i].timeStamp));
                 out.attribute(null, ATTR_PACKAGE_NAME, toWrite[i].packageName);
                 out.attribute(null, ATTR_USER, Integer.toString(userSerialNo));
@@ -394,8 +407,8 @@
                 out.attribute(null, ATTR_NIGHT_MODE, Boolean.toString(toWrite[i].nightMode));
                 out.attribute(null, ATTR_COLOR_TEMPERATURE, Integer.toString(
                         toWrite[i].colorTemperature));
-                out.attribute(null, ATTR_LAST_BRIGHTNESS,
-                        Integer.toString(toWrite[i].lastBrightness));
+                out.attribute(null, ATTR_LAST_NITS,
+                        Float.toString(toWrite[i].lastBrightness));
                 StringBuilder luxValues = new StringBuilder();
                 StringBuilder luxTimestamps = new StringBuilder();
                 for (int j = 0; j < toWrite[i].luxValues.length; ++j) {
@@ -446,8 +459,8 @@
                 if (TAG_EVENT.equals(tag)) {
                     BrightnessChangeEvent event = new BrightnessChangeEvent();
 
-                    String brightness = parser.getAttributeValue(null, ATTR_BRIGHTNESS);
-                    event.brightness = Integer.parseInt(brightness);
+                    String brightness = parser.getAttributeValue(null, ATTR_NITS);
+                    event.brightness = Float.parseFloat(brightness);
                     String timestamp = parser.getAttributeValue(null, ATTR_TIMESTAMP);
                     event.timeStamp = Long.parseLong(timestamp);
                     event.packageName = parser.getAttributeValue(null, ATTR_PACKAGE_NAME);
@@ -460,8 +473,8 @@
                     String colorTemperature =
                             parser.getAttributeValue(null, ATTR_COLOR_TEMPERATURE);
                     event.colorTemperature = Integer.parseInt(colorTemperature);
-                    String lastBrightness = parser.getAttributeValue(null, ATTR_LAST_BRIGHTNESS);
-                    event.lastBrightness = Integer.parseInt(lastBrightness);
+                    String lastBrightness = parser.getAttributeValue(null, ATTR_LAST_NITS);
+                    event.lastBrightness = Float.parseFloat(lastBrightness);
 
                     String luxValue = parser.getAttributeValue(null, ATTR_LUX);
                     String luxTimestamp = parser.getAttributeValue(null, ATTR_LUX_TIMESTAMPS);
@@ -582,22 +595,6 @@
         }
     }
 
-    private final class SettingsObserver extends ContentObserver {
-        public SettingsObserver(Handler handler) {
-            super(handler);
-        }
-
-        @Override
-        public void onChange(boolean selfChange, Uri uri) {
-            if (DEBUG) {
-                Slog.v(TAG, "settings change " + uri);
-            }
-            // Self change is based on observer passed to notifyObserver, SettingsProvider
-            // passes null so no changes are self changes.
-            handleBrightnessChanged();
-        }
-    }
-
     private final class Receiver extends BroadcastReceiver {
         @Override
         public void onReceive(Context context, Intent intent) {
@@ -623,6 +620,24 @@
         }
     }
 
+    private final class TrackerHandler extends Handler {
+        public TrackerHandler(Looper looper) {
+            super(looper, null, true /*async*/);
+        }
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case MSG_BACKGROUND_START:
+                    backgroundStart((float)msg.obj /*initial brightness*/);
+                    break;
+                case MSG_BRIGHTNESS_CHANGED:
+                    float newBrightness = (float) msg.obj;
+                    boolean userInitiatedChange = (msg.arg1 == 1);
+                    handleBrightnessChanged(newBrightness, userInitiatedChange);
+                    break;
+            }
+        }
+    }
+
     @VisibleForTesting
     static class Injector {
         public void registerSensorListener(Context context,
@@ -638,18 +653,6 @@
             sensorManager.unregisterListener(sensorListener);
         }
 
-        public void registerBrightnessObserver(ContentResolver resolver,
-                ContentObserver settingsObserver) {
-            resolver.registerContentObserver(Settings.System.getUriFor(
-                    Settings.System.SCREEN_BRIGHTNESS),
-                    false, settingsObserver, UserHandle.USER_ALL);
-        }
-
-        public void unregisterBrightnessObserver(Context context,
-                ContentObserver settingsObserver) {
-            context.getContentResolver().unregisterContentObserver(settingsObserver);
-        }
-
         public void registerReceiver(Context context,
                 BroadcastReceiver receiver, IntentFilter filter) {
             context.registerReceiver(receiver, filter);
@@ -664,16 +667,6 @@
             return BackgroundThread.getHandler();
         }
 
-        public int getSystemIntForUser(ContentResolver resolver, String setting, int defaultValue,
-                int userId) {
-            return Settings.System.getIntForUser(resolver, setting, defaultValue, userId);
-        }
-
-        public void putSystemIntForUser(ContentResolver resolver, String setting, int value,
-                int userId) {
-            Settings.System.putIntForUser(resolver, setting, value, userId);
-        }
-
         public int getSecureIntForUser(ContentResolver resolver, String setting, int defaultValue,
                 int userId) {
             return Settings.Secure.getIntForUser(resolver, setting, defaultValue, userId);
diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index 9b97934..02e4fe0 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -270,8 +270,6 @@
 
     private final Injector mInjector;
 
-    private final BrightnessTracker mBrightnessTracker;
-
     public DisplayManagerService(Context context) {
         this(context, new Injector());
     }
@@ -290,7 +288,6 @@
 
         PowerManager pm = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
         mGlobalDisplayBrightness = pm.getDefaultScreenBrightnessSetting();
-        mBrightnessTracker = new BrightnessTracker(context, null);
         mCurrentUserId = UserHandle.USER_SYSTEM;
     }
 
@@ -1339,9 +1336,6 @@
 
             pw.println();
             mPersistentDataStore.dump(pw);
-
-            pw.println();
-            mBrightnessTracker.dump(pw);
         }
     }
 
@@ -1418,10 +1412,6 @@
                     break;
                 }
 
-                case MSG_REGISTER_BRIGHTNESS_TRACKER:
-                    mBrightnessTracker.start();
-                    break;
-
                 case MSG_LOAD_BRIGHTNESS_CONFIGURATION:
                     loadBrightnessConfiguration();
                     break;
@@ -1833,22 +1823,9 @@
             final int userId = UserHandle.getUserId(callingUid);
             final long token = Binder.clearCallingIdentity();
             try {
-                return mBrightnessTracker.getEvents(userId, hasUsageStats);
-            } finally {
-                Binder.restoreCallingIdentity(token);
-            }
-        }
-
-        @Override // Binder call
-        public void setBrightness(int brightness) {
-            // STOPSHIP - remove when adaptive brightness controller accepts curves.
-            mContext.enforceCallingOrSelfPermission(
-                    Manifest.permission.BRIGHTNESS_SLIDER_USAGE,
-                    "Permission to set brightness.");
-            int userId = UserHandle.getUserId(Binder.getCallingUid());
-            final long token = Binder.clearCallingIdentity();
-            try {
-                mBrightnessTracker.setBrightness(brightness, userId);
+                synchronized (mSyncRoot) {
+                    return mDisplayPowerController.getBrightnessEvents(userId, hasUsageStats);
+                }
             } finally {
                 Binder.restoreCallingIdentity(token);
             }
@@ -2028,7 +2005,9 @@
 
         @Override
         public void persistBrightnessSliderEvents() {
-            mBrightnessTracker.persistEvents();
+            synchronized (mSyncRoot) {
+                mDisplayPowerController.persistBrightnessSliderEvents();
+            }
         }
     }
 }
diff --git a/services/core/java/com/android/server/display/DisplayPowerController.java b/services/core/java/com/android/server/display/DisplayPowerController.java
index a2d9548..e5a4b0a 100644
--- a/services/core/java/com/android/server/display/DisplayPowerController.java
+++ b/services/core/java/com/android/server/display/DisplayPowerController.java
@@ -24,13 +24,16 @@
 
 import android.animation.Animator;
 import android.animation.ObjectAnimator;
+import android.annotation.Nullable;
+import android.annotation.UserIdInt;
 import android.content.Context;
+import android.content.pm.ParceledListSlice;
 import android.content.res.Resources;
-import android.content.res.TypedArray;
 import android.hardware.Sensor;
 import android.hardware.SensorEvent;
 import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
+import android.hardware.display.BrightnessChangeEvent;
 import android.hardware.display.BrightnessConfiguration;
 import android.hardware.display.DisplayManagerInternal.DisplayPowerCallbacks;
 import android.hardware.display.DisplayManagerInternal.DisplayPowerRequest;
@@ -96,7 +99,6 @@
     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_USER_SWITCH = 6;
 
     private static final int PROXIMITY_UNKNOWN = -1;
     private static final int PROXIMITY_NEGATIVE = 0;
@@ -151,9 +153,6 @@
     // The dim screen brightness.
     private final int mScreenBrightnessDimConfig;
 
-    // The minimum screen brightness to use in a very dark room.
-    private final int mScreenBrightnessDarkConfig;
-
     // The minimum allowed brightness.
     private final int mScreenBrightnessRangeMinimum;
 
@@ -261,6 +260,13 @@
     private long mScreenOnBlockStartRealTime;
     private long mScreenOffBlockStartRealTime;
 
+    // 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;
+    // 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;
+
     // Screen state we reported to policy. Must be one of REPORTED_TO_POLICY_SCREEN_* fields.
     private int mReportedScreenStateToPolicy;
 
@@ -289,6 +295,10 @@
     // The controller for the automatic brightness level.
     private AutomaticBrightnessController mAutomaticBrightnessController;
 
+    // The mapper between ambient lux, display backlight values, and display brightness.
+    @Nullable
+    private BrightnessMappingStrategy mBrightnessMapper;
+
     // The default brightness configuration. Used for whenever we don't have a valid brightness
     // configuration set. This is typically seen with users that don't have a brightness
     // configuration that's different from the default.
@@ -302,6 +312,9 @@
     private ObjectAnimator mColorFadeOffAnimator;
     private RampAnimator<DisplayPowerState> mScreenBrightnessRampAnimator;
 
+    // Tracker for brightness changes
+    private final BrightnessTracker mBrightnessTracker;
+
     /**
      * Creates the display power controller.
      */
@@ -309,6 +322,7 @@
             DisplayPowerCallbacks callbacks, Handler handler,
             SensorManager sensorManager, DisplayBlanker blanker) {
         mHandler = new DisplayControllerHandler(handler.getLooper());
+        mBrightnessTracker = new BrightnessTracker(context, null);
         mCallbacks = callbacks;
 
         mBatteryStats = BatteryStatsService.getService();
@@ -327,23 +341,8 @@
         mScreenBrightnessDimConfig = clampAbsoluteBrightness(resources.getInteger(
                 com.android.internal.R.integer.config_screenBrightnessDim));
 
-        mScreenBrightnessDarkConfig = clampAbsoluteBrightness(resources.getInteger(
-                com.android.internal.R.integer.config_screenBrightnessDark));
-        if (mScreenBrightnessDarkConfig > mScreenBrightnessDimConfig) {
-            Slog.w(TAG, "Expected config_screenBrightnessDark ("
-                    + mScreenBrightnessDarkConfig + ") to be less than or equal to "
-                    + "config_screenBrightnessDim (" + mScreenBrightnessDimConfig + ").");
-        }
-        if (mScreenBrightnessDarkConfig > screenBrightnessSettingMinimum) {
-            Slog.w(TAG, "Expected config_screenBrightnessDark ("
-                    + mScreenBrightnessDarkConfig + ") to be less than or equal to "
-                    + "config_screenBrightnessSettingMinimum ("
-                    + screenBrightnessSettingMinimum + ").");
-        }
-
-        int screenBrightnessRangeMinimum = Math.min(Math.min(
-                screenBrightnessSettingMinimum, mScreenBrightnessDimConfig),
-                mScreenBrightnessDarkConfig);
+        mScreenBrightnessRangeMinimum =
+                Math.min(screenBrightnessSettingMinimum, mScreenBrightnessDimConfig);
 
         mScreenBrightnessRangeMaximum = clampAbsoluteBrightness(resources.getInteger(
                     com.android.internal.R.integer.config_screenBrightnessSettingMaximum));
@@ -362,18 +361,6 @@
                 com.android.internal.R.bool.config_skipScreenOnBrightnessRamp);
 
         if (mUseSoftwareAutoBrightnessConfig) {
-            float[] luxLevels = getLuxLevels(resources.getIntArray(
-                    com.android.internal.R.array.config_autoBrightnessLevels));
-            int[] backlightValues = resources.getIntArray(
-                    com.android.internal.R.array.config_autoBrightnessLcdBacklightValues);
-            float[] brightnessValuesNits = getFloatArray(resources.obtainTypedArray(
-                    com.android.internal.R.array.config_autoBrightnessDisplayValuesNits));
-
-            final float screenMinimumNits = resources.getFloat(
-                    com.android.internal.R.dimen.config_screenBrightnessMinimumNits);
-            final float screenMaximumNits = resources.getFloat(
-                    com.android.internal.R.dimen.config_screenBrightnessMaximumNits);
-
             final float dozeScaleFactor = resources.getFraction(
                     com.android.internal.R.fraction.config_screenAutoBrightnessDozeScaleFactor,
                     1, 1);
@@ -413,31 +400,13 @@
                         + "config_autoBrightnessLightSensorRate (" + lightSensorRate + ").");
             }
 
-            if (backlightValues != null && backlightValues.length > 0) {
-                final int bottom = backlightValues[0];
-                if (mScreenBrightnessDarkConfig > bottom) {
-                    Slog.w(TAG, "config_screenBrightnessDark (" + mScreenBrightnessDarkConfig
-                            + ") should be less than or equal to the first value of "
-                            + "config_autoBrightnessLcdBacklightValues ("
-                            + bottom + ").");
-                }
-                if (bottom < screenBrightnessRangeMinimum) {
-                    screenBrightnessRangeMinimum = bottom;
-                }
-            }
-
-            float[] nitsRange = { screenMinimumNits, screenMaximumNits };
-            int[] backlightRange = { screenBrightnessRangeMinimum, mScreenBrightnessRangeMaximum };
-
-            BrightnessMappingStrategy mapper = BrightnessMappingStrategy.create(
-                    luxLevels, backlightValues, brightnessValuesNits,
-                    nitsRange, backlightRange);
-            if (mapper != null) {
+            mBrightnessMapper = BrightnessMappingStrategy.create(resources);
+            if (mBrightnessMapper != null) {
                 mAutomaticBrightnessController = new AutomaticBrightnessController(this,
-                        handler.getLooper(), sensorManager, mapper, lightSensorWarmUpTimeConfig,
-                        screenBrightnessRangeMinimum, mScreenBrightnessRangeMaximum,
-                        dozeScaleFactor, lightSensorRate, initialLightSensorRate,
-                        brighteningLightDebounce, darkeningLightDebounce,
+                        handler.getLooper(), sensorManager, mBrightnessMapper,
+                        lightSensorWarmUpTimeConfig, mScreenBrightnessRangeMinimum,
+                        mScreenBrightnessRangeMaximum, dozeScaleFactor, lightSensorRate,
+                        initialLightSensorRate, brighteningLightDebounce, darkeningLightDebounce,
                         autoBrightnessResetAmbientLuxAfterWarmUp, ambientLightHorizon,
                         autoBrightnessAdjustmentMaxGamma, dynamicHysteresis);
             } else {
@@ -445,9 +414,6 @@
             }
         }
 
-        mScreenBrightnessRangeMinimum = screenBrightnessRangeMinimum;
-
-
         mColorFadeEnabled = !ActivityManager.isLowRamDeviceStatic();
         mColorFadeFadesConfig = resources.getBoolean(
                 com.android.internal.R.bool.config_animateScreenLights);
@@ -466,25 +432,8 @@
             }
         }
 
-    }
-
-    private static float[] getLuxLevels(int[] lux) {
-        // The first control point is implicit and always at 0 lux.
-        float[] levels = new float[lux.length + 1];
-        for (int i = 0; i < lux.length; i++) {
-            levels[i + 1] = (float) lux[i];
-        }
-        return levels;
-    }
-
-    private static float[] getFloatArray(TypedArray array) {
-        final int N = array.length();
-        float[] vals = new float[N];
-        for (int i = 0; i < N; i++) {
-            vals[i] = array.getFloat(i, -1.0f);
-        }
-        array.recycle();
-        return vals;
+        mLastBrightness = -1;
+        mLastAutoBrightnessAdjustment = Float.NaN;
     }
 
     /**
@@ -495,6 +444,23 @@
     }
 
     /**
+     * Get the {@link BrightnessChangeEvent}s for the specified user.
+     * @param userId userId to fetch data for
+     * @param includePackage if false will null out the package name in events
+     */
+    public ParceledListSlice<BrightnessChangeEvent> getBrightnessEvents(
+            @UserIdInt int userId, boolean includePackage) {
+        return mBrightnessTracker.getEvents(userId, includePackage);
+    }
+
+    /**
+     * Persist the brightness slider events to disk.
+     */
+    public void persistBrightnessSliderEvents() {
+        mBrightnessTracker.persistEvents();
+    }
+
+    /**
      * Requests a new power state.
      * The controller makes a copy of the provided object and then
      * begins adjusting the power state to match what was requested.
@@ -588,6 +554,12 @@
         } catch (RemoteException ex) {
             // same process
         }
+
+        // Initialize all of the brightness tracking state
+        final float brightness = getNits(mPowerState.getScreenBrightness());
+        if (brightness >= 0.0f) {
+            mBrightnessTracker.start(brightness);
+        }
     }
 
     private final Animator.AnimatorListener mAnimatorListener = new Animator.AnimatorListener() {
@@ -722,16 +694,32 @@
             brightness = PowerManager.BRIGHTNESS_OFF;
         }
 
-        // Configure auto-brightness.
-        boolean autoBrightnessEnabled = false;
-        if (mAutomaticBrightnessController != null) {
-            final boolean autoBrightnessEnabledInDoze =
-                    mAllowAutoBrightnessWhileDozingConfig && Display.isDozeState(state);
-            autoBrightnessEnabled = mPowerRequest.useAutoBrightness
+
+        final boolean autoBrightnessEnabledInDoze =
+                mAllowAutoBrightnessWhileDozingConfig && Display.isDozeState(state);
+        final boolean autoBrightnessEnabled = mPowerRequest.useAutoBrightness
                     && (state == Display.STATE_ON || autoBrightnessEnabledInDoze)
-                    && brightness < 0;
-            final boolean userInitiatedChange = autoBrightnessAdjustmentChanged
-                    && mPowerRequest.brightnessSetByUser;
+                    && brightness < 0
+                    && mAutomaticBrightnessController != null;
+        final boolean brightnessAdjustmentChanged =
+                !Float.isNaN(mLastAutoBrightnessAdjustment)
+                && mPowerRequest.screenAutoBrightnessAdjustment != mLastAutoBrightnessAdjustment;
+        final boolean brightnessChanged = mLastBrightness >= 0
+                && mPowerRequest.screenBrightness != mLastBrightness;
+
+        // 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;
+        }
+
+        // Configure auto-brightness.
+        if (mAutomaticBrightnessController != null) {
             mAutomaticBrightnessController.configure(autoBrightnessEnabled,
                     mBrightnessConfiguration, mPowerRequest.screenAutoBrightnessAdjustment,
                     state != Display.STATE_ON, userInitiatedChange);
@@ -854,6 +842,13 @@
                 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);
+            }
         }
 
         // Determine whether the display is ready for use in the newly requested state.
@@ -1312,6 +1307,14 @@
         mHandler.post(mOnStateChangedRunnable);
     }
 
+    private float getNits(int backlight) {
+        if (mBrightnessMapper != null) {
+            return mBrightnessMapper.getNits(backlight);
+        } else {
+            return -1.0f;
+        }
+    }
+
     private final Runnable mOnStateChangedRunnable = new Runnable() {
         @Override
         public void run() {
@@ -1362,7 +1365,6 @@
         pw.println("Display Power Controller Configuration:");
         pw.println("  mScreenBrightnessDozeConfig=" + mScreenBrightnessDozeConfig);
         pw.println("  mScreenBrightnessDimConfig=" + mScreenBrightnessDimConfig);
-        pw.println("  mScreenBrightnessDarkConfig=" + mScreenBrightnessDarkConfig);
         pw.println("  mScreenBrightnessRangeMinimum=" + mScreenBrightnessRangeMinimum);
         pw.println("  mScreenBrightnessRangeMaximum=" + mScreenBrightnessRangeMaximum);
         pw.println("  mUseSoftwareAutoBrightnessConfig=" + mUseSoftwareAutoBrightnessConfig);
@@ -1383,7 +1385,6 @@
         pw.println("Display Power Controller Thread State:");
         pw.println("  mPowerRequest=" + mPowerRequest);
         pw.println("  mWaitingForNegativeProximity=" + mWaitingForNegativeProximity);
-
         pw.println("  mProximitySensor=" + mProximitySensor);
         pw.println("  mProximitySensorEnabled=" + mProximitySensorEnabled);
         pw.println("  mProximityThreshold=" + mProximityThreshold);
@@ -1392,6 +1393,8 @@
         pw.println("  mPendingProximityDebounceTime="
                 + TimeUtils.formatUptime(mPendingProximityDebounceTime));
         pw.println("  mScreenOffBecauseOfProximity=" + mScreenOffBecauseOfProximity);
+        pw.println("  mLastBrightness=" + mLastBrightness);
+        pw.println("  mLastAutoBrightnessAdjustment=" + mLastAutoBrightnessAdjustment);
         pw.println("  mAppliedAutoBrightness=" + mAppliedAutoBrightness);
         pw.println("  mAppliedDimming=" + mAppliedDimming);
         pw.println("  mAppliedLowPower=" + mAppliedLowPower);
@@ -1420,6 +1423,10 @@
             mAutomaticBrightnessController.dump(pw);
         }
 
+        if (mBrightnessTracker != null) {
+            pw.println();
+            mBrightnessTracker.dump(pw);
+        }
     }
 
     private static String proximityToString(int state) {
diff --git a/services/core/java/com/android/server/location/ContextHubServiceUtil.java b/services/core/java/com/android/server/location/ContextHubServiceUtil.java
index c356b63..033437a 100644
--- a/services/core/java/com/android/server/location/ContextHubServiceUtil.java
+++ b/services/core/java/com/android/server/location/ContextHubServiceUtil.java
@@ -221,7 +221,7 @@
             case Result.NOT_INIT:
                 return ContextHubTransaction.RESULT_FAILED_UNINITIALIZED;
             case Result.TRANSACTION_PENDING:
-                return ContextHubTransaction.RESULT_FAILED_PENDING;
+                return ContextHubTransaction.RESULT_FAILED_BUSY;
             case Result.TRANSACTION_FAILED:
             case Result.UNKNOWN_FAILURE:
             default: /* fall through */
diff --git a/services/core/java/com/android/server/locksettings/LockSettingsService.java b/services/core/java/com/android/server/locksettings/LockSettingsService.java
index 482acef..02218ff 100644
--- a/services/core/java/com/android/server/locksettings/LockSettingsService.java
+++ b/services/core/java/com/android/server/locksettings/LockSettingsService.java
@@ -2026,8 +2026,9 @@
     }
 
     @Override
-    public Map<String, byte[]> recoverKeys(@NonNull String sessionId, @NonNull byte[] recoveryKeyBlob,
-            @NonNull List<KeyEntryRecoveryData> applicationKeys, @UserIdInt int userId)
+    public Map<String, byte[]> recoverKeys(@NonNull String sessionId,
+            @NonNull byte[] recoveryKeyBlob, @NonNull List<KeyEntryRecoveryData> applicationKeys,
+            @UserIdInt int userId)
             throws RemoteException {
         return mRecoverableKeyStoreManager.recoverKeys(
                 sessionId, recoveryKeyBlob, applicationKeys, userId);
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/KeySyncUtils.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/KeySyncUtils.java
index bc080be..e851d8c 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/KeySyncUtils.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/KeySyncUtils.java
@@ -298,8 +298,8 @@
                 .order(ByteOrder.LITTLE_ENDIAN)
                 .put(SecureBox.encodePublicKey(thmPublicKey))
                 .putLong(counterId)
-                .putInt(maxAttempts)
                 .putLong(deviceId)
+                .putInt(maxAttempts)
                 .array();
     }
 
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/PlatformKeyManager.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/PlatformKeyManager.java
index 1719710..a8b8361 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/PlatformKeyManager.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/PlatformKeyManager.java
@@ -88,7 +88,8 @@
      *
      * @hide
      */
-    public static PlatformKeyManager getInstance(Context context, RecoverableKeyStoreDb database, int userId)
+    public static PlatformKeyManager getInstance(Context context, RecoverableKeyStoreDb database,
+            int userId)
             throws KeyStoreException, NoSuchAlgorithmException, InsecureUserException {
         context = context.getApplicationContext();
         PlatformKeyManager keyManager = new PlatformKeyManager(
@@ -145,7 +146,6 @@
     public void regenerate() throws NoSuchAlgorithmException, KeyStoreException {
         int nextId = getGenerationId() + 1;
         generateAndLoadKey(nextId);
-        setGenerationId(nextId);
     }
 
     /**
@@ -218,7 +218,6 @@
         }
 
         generateAndLoadKey(generationId);
-        mDatabase.setPlatformKeyGenerationId(mUserId, generationId);
     }
 
     /**
@@ -300,6 +299,8 @@
                     .setBoundToSpecificSecureUserId(mUserId)
                     .build());
 
+        setGenerationId(generationId);
+
         try {
             secretKey.destroy();
         } catch (DestroyFailedException e) {
diff --git a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverableKeyStoreDb.java b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverableKeyStoreDb.java
index 838311e..5ca5da4 100644
--- a/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverableKeyStoreDb.java
+++ b/services/core/java/com/android/server/locksettings/recoverablekeystore/storage/RecoverableKeyStoreDb.java
@@ -590,6 +590,7 @@
      *
      * @hide
      */
+    @Nullable
     public Long getServerParameters(int userId, int uid) {
         SQLiteDatabase db = mKeyStoreDbHelper.getReadableDatabase();
 
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 768eb8f..c3dce31 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -27,7 +27,6 @@
 import android.app.ActivityManager;
 import android.app.ActivityManagerInternal;
 import android.app.ActivityManagerNative;
-import android.app.AppOpsManager;
 import android.app.IActivityManager;
 import android.app.IStopUserCallback;
 import android.app.KeyguardManager;
@@ -795,12 +794,7 @@
                     "target should only be specified when we are disabling quiet mode.");
         }
 
-        if (!isAllowedToSetWorkMode(callingPackage, Binder.getCallingUid())) {
-            throw new SecurityException("Not allowed to call trySetQuietModeEnabled, "
-                    + "caller is foreground default launcher "
-                    + "nor with MANAGE_USERS/MODIFY_QUIET_MODE permission");
-        }
-
+        ensureCanModifyQuietMode(callingPackage, Binder.getCallingUid(), target != null);
         final long identity = Binder.clearCallingIdentity();
         try {
             if (enableQuietMode) {
@@ -824,35 +818,44 @@
     }
 
     /**
-     * An app can modify quiet mode if the caller meets one of the condition:
+     * The caller can modify quiet mode if it meets one of these conditions:
      * <ul>
      *     <li>Has system UID or root UID</li>
      *     <li>Has {@link Manifest.permission#MODIFY_QUIET_MODE}</li>
      *     <li>Has {@link Manifest.permission#MANAGE_USERS}</li>
      * </ul>
+     * <p>
+     * If caller wants to start an intent after disabling the quiet mode, it must has
+     * {@link Manifest.permission#MANAGE_USERS}.
      */
-    private boolean isAllowedToSetWorkMode(String callingPackage, int callingUid) {
+    private void ensureCanModifyQuietMode(String callingPackage, int callingUid,
+            boolean startIntent) {
         if (hasManageUsersPermission()) {
-            return true;
+            return;
         }
-
+        if (startIntent) {
+            throw new SecurityException("MANAGE_USERS permission is required to start intent "
+                    + "after disabling quiet mode.");
+        }
         final boolean hasModifyQuietModePermission = ActivityManager.checkComponentPermission(
                 Manifest.permission.MODIFY_QUIET_MODE,
                 callingUid, -1, true) == PackageManager.PERMISSION_GRANTED;
         if (hasModifyQuietModePermission) {
-            return true;
+            return;
         }
 
+        verifyCallingPackage(callingPackage, callingUid);
         final ShortcutServiceInternal shortcutInternal =
                 LocalServices.getService(ShortcutServiceInternal.class);
         if (shortcutInternal != null) {
             boolean isForegroundLauncher =
                     shortcutInternal.isForegroundDefaultLauncher(callingPackage, callingUid);
             if (isForegroundLauncher) {
-                return true;
+                return;
             }
         }
-        return false;
+        throw new SecurityException("Can't modify quiet mode, caller is neither foreground "
+                + "default launcher nor has MANAGE_USERS/MODIFY_QUIET_MODE permission");
     }
 
     private void setQuietModeEnabled(
@@ -3932,4 +3935,16 @@
             return false;
         }
     }
+
+    /**
+     * Check if the calling package name matches with the calling UID, throw
+     * {@link SecurityException} if not.
+     */
+    private void verifyCallingPackage(String callingPackage, int callingUid) {
+        int packageUid = mPm.getPackageUid(callingPackage, 0,  UserHandle.getUserId(callingUid));
+        if (packageUid != callingUid) {
+            throw new SecurityException("Specified package " + callingPackage
+                    + " does not match the calling uid " + callingUid);
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/power/PowerManagerService.java b/services/core/java/com/android/server/power/PowerManagerService.java
index bc7f2e6..86b22bb 100644
--- a/services/core/java/com/android/server/power/PowerManagerService.java
+++ b/services/core/java/com/android/server/power/PowerManagerService.java
@@ -2452,6 +2452,7 @@
             float screenAutoBrightnessAdjustment = 0.0f;
             boolean autoBrightness = (mScreenBrightnessModeSetting ==
                     Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC);
+            boolean brightnessIsTemporary = false;
             if (!mBootCompleted) {
                 // Keep the brightness steady during boot. This requires the
                 // bootloader brightness and the default brightness to be identical.
@@ -2466,6 +2467,7 @@
                 brightnessSetByUser = false;
             } else if (isValidBrightness(mTemporaryScreenBrightnessSettingOverride)) {
                 screenBrightness = mTemporaryScreenBrightnessSettingOverride;
+                brightnessIsTemporary = true;
             } else if (isValidBrightness(mScreenBrightnessSetting)) {
                 screenBrightness = mScreenBrightnessSetting;
             }
@@ -2475,6 +2477,7 @@
                         mTemporaryScreenAutoBrightnessAdjustmentSettingOverride)) {
                     screenAutoBrightnessAdjustment =
                             mTemporaryScreenAutoBrightnessAdjustmentSettingOverride;
+                    brightnessIsTemporary = true;
                 } else if (isValidAutoBrightnessAdjustment(
                         mScreenAutoBrightnessAdjustmentSetting)) {
                     screenAutoBrightnessAdjustment = mScreenAutoBrightnessAdjustmentSetting;
@@ -2490,6 +2493,7 @@
             mDisplayPowerRequest.screenAutoBrightnessAdjustment =
                     screenAutoBrightnessAdjustment;
             mDisplayPowerRequest.brightnessSetByUser = brightnessSetByUser;
+            mDisplayPowerRequest.brightnessIsTemporary = brightnessIsTemporary;
             mDisplayPowerRequest.useAutoBrightness = autoBrightness;
             mDisplayPowerRequest.useProximitySensor = shouldUseProximitySensorLocked();
             mDisplayPowerRequest.boostScreenBrightness = shouldBoostScreenBrightness();
diff --git a/services/core/java/com/android/server/wm/AppWindowThumbnail.java b/services/core/java/com/android/server/wm/AppWindowThumbnail.java
index b86cd50..c16a531 100644
--- a/services/core/java/com/android/server/wm/AppWindowThumbnail.java
+++ b/services/core/java/com/android/server/wm/AppWindowThumbnail.java
@@ -139,7 +139,7 @@
 
     @Override
     public Builder makeAnimationLeash() {
-        return mAppToken.makeSurface().setParent(mAppToken.getAppAnimationLayer());
+        return mAppToken.makeSurface();
     }
 
     @Override
@@ -148,6 +148,11 @@
     }
 
     @Override
+    public SurfaceControl getAnimationLeashParent() {
+        return mAppToken.getAppAnimationLayer();
+    }
+
+    @Override
     public SurfaceControl getParentSurfaceControl() {
         return mAppToken.getParentSurfaceControl();
     }
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index 44d7948..8bd08a2 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -16,6 +16,9 @@
 
 package com.android.server.wm;
 
+import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
+import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
+import static android.app.WindowConfiguration.WINDOWING_MODE_UNDEFINED;
 import static android.content.pm.ActivityInfo.CONFIG_ORIENTATION;
 import static android.content.pm.ActivityInfo.CONFIG_SCREEN_SIZE;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_BEHIND;
@@ -53,6 +56,7 @@
 
 import android.annotation.CallSuper;
 import android.app.Activity;
+import android.app.WindowConfiguration.WindowingMode;
 import android.content.res.Configuration;
 import android.graphics.GraphicBuffer;
 import android.graphics.Point;
@@ -1211,6 +1215,30 @@
     }
 
     @Override
+    public void onConfigurationChanged(Configuration newParentConfig) {
+        final int prevWinMode = getWindowingMode();
+        super.onConfigurationChanged(newParentConfig);
+        final int winMode = getWindowingMode();
+
+        if (prevWinMode == winMode) {
+            return;
+        }
+
+        if (prevWinMode != WINDOWING_MODE_UNDEFINED && winMode == WINDOWING_MODE_PINNED) {
+            // Entering PiP from fullscreen, reset the snap fraction
+            mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(this);
+        } else if (prevWinMode == WINDOWING_MODE_PINNED && winMode != WINDOWING_MODE_UNDEFINED) {
+            // Leaving PiP to fullscreen, save the snap fraction based on the pre-animation bounds
+            // for the next re-entry into PiP (assuming the activity is not hidden or destroyed)
+            final TaskStack pinnedStack = mDisplayContent.getPinnedStack();
+            if (pinnedStack != null) {
+                mDisplayContent.mPinnedStackControllerLocked.saveReentrySnapFraction(this,
+                        pinnedStack.mPreAnimationBounds);
+            }
+        }
+    }
+
+    @Override
     void checkAppWindowsReadyToShow() {
         if (allDrawn == mLastAllDrawn) {
             return;
@@ -1512,9 +1540,8 @@
     }
 
     @Override
-    public SurfaceControl.Builder makeAnimationLeash() {
-        return super.makeAnimationLeash()
-                .setParent(getAppAnimationLayer());
+    public SurfaceControl getAnimationLeashParent() {
+        return getAppAnimationLayer();
     }
 
     boolean applyAnimationLocked(WindowManager.LayoutParams lp, int transit, boolean enter,
@@ -1837,6 +1864,11 @@
     @Override
     void setHidden(boolean hidden) {
         super.setHidden(hidden);
+
+        if (hidden) {
+            // Once the app window is hidden, reset the last saved PiP snap fraction
+            mDisplayContent.mPinnedStackControllerLocked.resetReentrySnapFraction(this);
+        }
         scheduleAnimation();
     }
 
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index d053015..63dfbc2 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -1923,6 +1923,8 @@
                     mService.unregisterPointerEventListener(mService.mMousePositionTracker);
                 }
             }
+            mService.mAnimator.removeDisplayLocked(mDisplayId);
+
             // The pending transaction won't be applied so we should
             // just clean up any surfaces pending destruction.
             onPendingTransactionApplied();
diff --git a/services/core/java/com/android/server/wm/PinnedStackController.java b/services/core/java/com/android/server/wm/PinnedStackController.java
index d8726bf..69cbe46 100644
--- a/services/core/java/com/android/server/wm/PinnedStackController.java
+++ b/services/core/java/com/android/server/wm/PinnedStackController.java
@@ -48,6 +48,7 @@
 import com.android.server.UiThread;
 
 import java.io.PrintWriter;
+import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -71,6 +72,7 @@
 
     private static final String TAG = TAG_WITH_CLASS_NAME ? "PinnedStackController" : TAG_WM;
 
+    public static final float INVALID_SNAP_FRACTION = -1f;
     private final WindowManagerService mService;
     private final DisplayContent mDisplayContent;
     private final Handler mHandler = UiThread.getHandler();
@@ -101,6 +103,8 @@
     private float mDefaultAspectRatio;
     private Point mScreenEdgeInsets;
     private int mCurrentMinSize;
+    private float mReentrySnapFraction = INVALID_SNAP_FRACTION;
+    private WeakReference<AppWindowToken> mLastPipActivity = null;
 
     // The aspect ratio bounds of the PIP.
     private float mMinAspectRatio;
@@ -113,6 +117,7 @@
     private final Rect mTmpAnimatingBoundsRect = new Rect();
     private final Point mTmpDisplaySize = new Point();
 
+
     /**
      * The callback object passed to listeners for them to notify the controller of state changes.
      */
@@ -250,9 +255,35 @@
     }
 
     /**
+     * Saves the current snap fraction for re-entry of the current activity into PiP.
+     */
+    void saveReentrySnapFraction(final AppWindowToken token, final Rect stackBounds) {
+        mReentrySnapFraction = getSnapFraction(stackBounds);
+        mLastPipActivity = new WeakReference<>(token);
+    }
+
+    /**
+     * Resets the last saved snap fraction so that the default bounds will be returned.
+     */
+    void resetReentrySnapFraction(AppWindowToken token) {
+        if (mLastPipActivity != null && mLastPipActivity.get() == token) {
+            mReentrySnapFraction = INVALID_SNAP_FRACTION;
+            mLastPipActivity = null;
+        }
+    }
+
+    /**
      * @return the default bounds to show the PIP when there is no active PIP.
      */
-    Rect getDefaultBounds() {
+    Rect getDefaultOrLastSavedBounds() {
+        return getDefaultBounds(mReentrySnapFraction);
+    }
+
+    /**
+     * @return the default bounds to show the PIP, if a {@param snapFraction} is provided, then it
+     * will apply the default bounds to the provided snap fraction.
+     */
+    Rect getDefaultBounds(float snapFraction) {
         synchronized (mService.mWindowMap) {
             final Rect insetBounds = new Rect();
             getInsetBounds(insetBounds);
@@ -260,8 +291,14 @@
             final Rect defaultBounds = new Rect();
             final Size size = mSnapAlgorithm.getSizeForAspectRatio(mDefaultAspectRatio,
                     mDefaultMinSize, mDisplayInfo.logicalWidth, mDisplayInfo.logicalHeight);
-            Gravity.apply(mDefaultStackGravity, size.getWidth(), size.getHeight(), insetBounds,
-                    0, mIsImeShowing ? mImeHeight : 0, defaultBounds);
+            if (snapFraction != INVALID_SNAP_FRACTION) {
+                defaultBounds.set(0, 0, size.getWidth(), size.getHeight());
+                final Rect movementBounds = getMovementBounds(defaultBounds);
+                mSnapAlgorithm.applySnapFraction(defaultBounds, movementBounds, snapFraction);
+            } else {
+                Gravity.apply(mDefaultStackGravity, size.getWidth(), size.getHeight(), insetBounds,
+                        0, mIsImeShowing ? mImeHeight : 0, defaultBounds);
+            }
             return defaultBounds;
         }
     }
@@ -299,9 +336,7 @@
             final Rect postChangeStackBounds = mTmpRect;
 
             // Calculate the snap fraction of the current stack along the old movement bounds
-            final Rect preChangeMovementBounds = getMovementBounds(postChangeStackBounds);
-            final float snapFraction = mSnapAlgorithm.getSnapFraction(postChangeStackBounds,
-                    preChangeMovementBounds);
+            final float snapFraction = getSnapFraction(postChangeStackBounds);
             mDisplayInfo.copyFrom(displayInfo);
 
             // Calculate the stack bounds in the new orientation to the same same fraction along the
@@ -414,7 +449,7 @@
             try {
                 final Rect insetBounds = new Rect();
                 getInsetBounds(insetBounds);
-                final Rect normalBounds = getDefaultBounds();
+                final Rect normalBounds = getDefaultBounds(INVALID_SNAP_FRACTION);
                 if (isValidPictureInPictureAspectRatio(mAspectRatio)) {
                     transformBoundsToAspectRatio(normalBounds, mAspectRatio,
                             false /* useCurrentMinEdgeSize */);
@@ -486,6 +521,14 @@
     }
 
     /**
+     * @return the default snap fraction to apply instead of the default gravity when calculating
+     *         the default stack bounds when first entering PiP.
+     */
+    private float getSnapFraction(Rect stackBounds) {
+        return mSnapAlgorithm.getSnapFraction(stackBounds, getMovementBounds(stackBounds));
+    }
+
+    /**
      * @return the pixels for a given dp value.
      */
     private int dpToPx(float dpValue, DisplayMetrics dm) {
@@ -494,7 +537,8 @@
 
     void dump(String prefix, PrintWriter pw) {
         pw.println(prefix + "PinnedStackController");
-        pw.print(prefix + "  defaultBounds="); getDefaultBounds().printShortString(pw);
+        pw.print(prefix + "  defaultBounds=");
+        getDefaultBounds(INVALID_SNAP_FRACTION).printShortString(pw);
         pw.println();
         mService.getStackBounds(WINDOWING_MODE_PINNED, ACTIVITY_TYPE_STANDARD, mTmpRect);
         pw.print(prefix + "  movementBounds="); getMovementBounds(mTmpRect).printShortString(pw);
@@ -516,7 +560,7 @@
 
     void writeToProto(ProtoOutputStream proto, long fieldId) {
         final long token = proto.start(fieldId);
-        getDefaultBounds().writeToProto(proto, DEFAULT_BOUNDS);
+        getDefaultBounds(INVALID_SNAP_FRACTION).writeToProto(proto, DEFAULT_BOUNDS);
         mService.getStackBounds(WINDOWING_MODE_PINNED, ACTIVITY_TYPE_STANDARD, mTmpRect);
         getMovementBounds(mTmpRect).writeToProto(proto, MOVEMENT_BOUNDS);
         proto.end(token);
diff --git a/services/core/java/com/android/server/wm/PinnedStackWindowController.java b/services/core/java/com/android/server/wm/PinnedStackWindowController.java
index b021a72..02fbfba 100644
--- a/services/core/java/com/android/server/wm/PinnedStackWindowController.java
+++ b/services/core/java/com/android/server/wm/PinnedStackWindowController.java
@@ -61,7 +61,7 @@
                     displayContent.getPinnedStackController();
             if (stackBounds == null) {
                 // Calculate the aspect ratio bounds from the default bounds
-                stackBounds = pinnedStackController.getDefaultBounds();
+                stackBounds = pinnedStackController.getDefaultOrLastSavedBounds();
             }
 
             if (pinnedStackController.isValidPictureInPictureAspectRatio(aspectRatio)) {
@@ -173,7 +173,7 @@
      * from fullscreen to non-fullscreen bounds.
      */
     public boolean deferScheduleMultiWindowModeChanged() {
-        synchronized(mWindowMap) {
+        synchronized (mWindowMap) {
             return mContainer.deferScheduleMultiWindowModeChanged();
         }
     }
diff --git a/services/core/java/com/android/server/wm/SurfaceAnimator.java b/services/core/java/com/android/server/wm/SurfaceAnimator.java
index bda5bc9..a32e711 100644
--- a/services/core/java/com/android/server/wm/SurfaceAnimator.java
+++ b/services/core/java/com/android/server/wm/SurfaceAnimator.java
@@ -72,23 +72,29 @@
                     target.mInnerAnimationFinishedCallback.onAnimationFinished(anim);
                     return;
                 }
-                if (anim != mAnimation) {
-                    // Callback was from another animation - ignore.
-                    return;
-                }
 
-                final Transaction t = new Transaction();
-                SurfaceControl.openTransaction();
-                try {
-                    reset(t, true /* destroyLeash */);
-                    animationFinishedCallback.run();
-                } finally {
-                    // TODO: This should use pendingTransaction eventually, but right now things
-                    // happening on the animation finished callback are happening on the global
-                    // transaction.
-                    SurfaceControl.mergeToGlobalTransaction(t);
-                    SurfaceControl.closeTransaction();
-                }
+                // TODO: This should use pendingTransaction eventually, but right now things
+                // happening on the animation finished callback are happening on the global
+                // transaction.
+                // For now we need to run this after it's guaranteed that the transaction that
+                // reparents the surface onto the leash is executed already. Otherwise this may be
+                // executed first, leading to surface loss, as the reparent operations wouldn't
+                // be in order.
+                mService.mAnimator.addAfterPrepareSurfacesRunnable(() -> {
+                    if (anim != mAnimation) {
+                        // Callback was from another animation - ignore.
+                        return;
+                    }
+                    final Transaction t = new Transaction();
+                    SurfaceControl.openTransaction();
+                    try {
+                        reset(t, true /* destroyLeash */);
+                        animationFinishedCallback.run();
+                    } finally {
+                        SurfaceControl.mergeToGlobalTransaction(t);
+                        SurfaceControl.closeTransaction();
+                    }
+                });
             }
         };
     }
@@ -213,7 +219,7 @@
             return;
         }
         final SurfaceControl surface = mAnimatable.getSurfaceControl();
-        final SurfaceControl parent = mAnimatable.getParentSurfaceControl();
+        final SurfaceControl parent = mAnimatable.getAnimationLeashParent();
         if (surface == null || parent == null) {
             Slog.w(TAG, "Unable to transfer animation, surface or parent is null");
             cancelAnimation();
@@ -287,6 +293,7 @@
             int height, boolean hidden) {
         if (DEBUG_ANIM) Slog.i(TAG, "Reparenting to leash");
         final SurfaceControl.Builder builder = mAnimatable.makeAnimationLeash()
+                .setParent(mAnimatable.getAnimationLeashParent())
                 .setName(surface + " - animation-leash")
                 .setSize(width, height);
         final SurfaceControl leash = builder.build();
@@ -355,6 +362,11 @@
         SurfaceControl.Builder makeAnimationLeash();
 
         /**
+         * @return The parent that should be used for the animation leash.
+         */
+        @Nullable SurfaceControl getAnimationLeashParent();
+
+        /**
          * @return The surface of the object to be animated.
          */
         @Nullable SurfaceControl getSurfaceControl();
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 3ffc7fa..eb8eae1 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -44,6 +44,7 @@
 
 import android.annotation.CallSuper;
 import android.content.res.Configuration;
+import android.graphics.Point;
 import android.graphics.Rect;
 import android.graphics.Region;
 import android.os.RemoteException;
@@ -145,6 +146,7 @@
      * For {@link #prepareSurfaces}.
      */
     final Rect mTmpDimBoundsRect = new Rect();
+    private final Point mLastSurfaceSize = new Point();
 
     TaskStack(WindowManagerService service, int stackId, StackWindowController controller) {
         super(service);
@@ -743,7 +745,13 @@
         }
 
         final Rect stackBounds = getBounds();
-        transaction.setSize(mSurfaceControl, stackBounds.width(), stackBounds.height());
+        final int width = stackBounds.width();
+        final int height = stackBounds.height();
+        if (width == mLastSurfaceSize.x && height == mLastSurfaceSize.y) {
+            return;
+        }
+        transaction.setSize(mSurfaceControl, width, height);
+        mLastSurfaceSize.set(width, height);
     }
 
     @Override
diff --git a/services/core/java/com/android/server/wm/WindowAnimator.java b/services/core/java/com/android/server/wm/WindowAnimator.java
index 8bceb64..7295873 100644
--- a/services/core/java/com/android/server/wm/WindowAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowAnimator.java
@@ -35,6 +35,7 @@
 import com.android.server.policy.WindowManagerPolicy;
 
 import java.io.PrintWriter;
+import java.util.ArrayList;
 
 /**
  * Singleton class that carries out the animations and Surface operations in a separate task
@@ -87,6 +88,12 @@
      */
     private boolean mAnimationFrameCallbackScheduled;
 
+    /**
+     * A list of runnable that need to be run after {@link WindowContainer#prepareSurfaces} is
+     * executed and the corresponding transaction is closed and applied.
+     */
+    private final ArrayList<Runnable> mAfterPrepareSurfacesRunnables = new ArrayList<>();
+
     WindowAnimator(final WindowManagerService service) {
         mService = service;
         mContext = service.mContext;
@@ -262,6 +269,7 @@
             mService.destroyPreservedSurfaceLocked();
             mService.mWindowPlacerLocked.destroyPendingSurfaces();
 
+            executeAfterPrepareSurfacesRunnables();
 
             if (DEBUG_WINDOW_TRACE) {
                 Slog.i(TAG, "!!! animate: exit mAnimating=" + mAnimating
@@ -425,4 +433,23 @@
     void orAnimating(boolean animating) {
         mAnimating |= animating;
     }
+
+    /**
+     * Adds a runnable to be executed after {@link WindowContainer#prepareSurfaces} is called and
+     * the corresponding transaction is closed and applied.
+     */
+    void addAfterPrepareSurfacesRunnable(Runnable r) {
+        mAfterPrepareSurfacesRunnables.add(r);
+        scheduleAnimation();
+    }
+
+    private void executeAfterPrepareSurfacesRunnables() {
+
+        // Traverse in order they were added.
+        final int size = mAfterPrepareSurfacesRunnables.size();
+        for (int i = 0; i < size; i++) {
+            mAfterPrepareSurfacesRunnables.get(i).run();
+        }
+        mAfterPrepareSurfacesRunnables.clear();
+    }
 }
diff --git a/services/core/java/com/android/server/wm/WindowContainer.java b/services/core/java/com/android/server/wm/WindowContainer.java
index b251b53..af31410 100644
--- a/services/core/java/com/android/server/wm/WindowContainer.java
+++ b/services/core/java/com/android/server/wm/WindowContainer.java
@@ -95,6 +95,7 @@
     protected final WindowManagerService mService;
 
     private final Point mTmpPos = new Point();
+    protected final Point mLastSurfacePosition = new Point();
 
     /** Total number of elements in this subtree, including our own hierarchy element. */
     private int mTreeWeight = 1;
@@ -1088,6 +1089,11 @@
         return makeSurface();
     }
 
+    @Override
+    public SurfaceControl getAnimationLeashParent() {
+        return getParentSurfaceControl();
+    }
+
     /**
      * @return The layer on which all app animations are happening.
      */
@@ -1172,7 +1178,12 @@
         }
 
         getRelativePosition(mTmpPos);
+        if (mTmpPos.equals(mLastSurfacePosition)) {
+            return;
+        }
+
         transaction.setPosition(mSurfaceControl, mTmpPos.x, mTmpPos.y);
+        mLastSurfacePosition.set(mTmpPos.x, mTmpPos.y);
 
         for (int i = mChildren.size() - 1; i >= 0; i--) {
             mChildren.get(i).updateSurfacePosition(transaction);
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 863922f..c0aff4c 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -142,6 +142,7 @@
 import android.os.Trace;
 import android.os.UserHandle;
 import android.os.WorkSource;
+import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.util.MergedConfiguration;
 import android.util.Slog;
@@ -3676,6 +3677,13 @@
             windowInfo.activityToken = mAppToken.appToken.asBinder();
         }
         windowInfo.title = mAttrs.accessibilityTitle;
+        // Panel windows have no public way to set the a11y title directly. Use the
+        // regular title as a fallback.
+        if (TextUtils.isEmpty(windowInfo.title)
+                && (mAttrs.type >= WindowManager.LayoutParams.FIRST_SUB_WINDOW)
+                && (mAttrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW)) {
+            windowInfo.title = mAttrs.getTitle();
+        }
         windowInfo.accessibilityIdOfAnchor = mAttrs.accessibilityIdOfAnchor;
         windowInfo.focused = isFocused();
         Task task = getTask();
@@ -4432,6 +4440,7 @@
 
         // Leash is now responsible for position, so set our position to 0.
         t.setPosition(mSurfaceControl, 0, 0);
+        mLastSurfacePosition.set(0, 0);
     }
 
     @Override
@@ -4447,8 +4456,9 @@
         }
 
         transformFrameToSurfacePosition(mFrame.left, mFrame.top, mSurfacePosition);
-        if (!mSurfaceAnimator.hasLeash()) {
+        if (!mSurfaceAnimator.hasLeash() && !mLastSurfacePosition.equals(mSurfacePosition)) {
             t.setPosition(mSurfaceControl, mSurfacePosition.x, mSurfacePosition.y);
+            mLastSurfacePosition.set(mSurfacePosition.x, mSurfacePosition.y);
         }
     }
 
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java b/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
index e55d4ea..c1e95eb 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/BaseIDevicePolicyManager.java
@@ -67,7 +67,8 @@
     public void transferOwner(ComponentName admin, ComponentName target, PersistableBundle bundle) {}
 
     public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm,
-            ParcelableKeyGenParameterSpec keySpec, KeymasterCertificateChain attestationChain) {
+            ParcelableKeyGenParameterSpec keySpec, int idAttestationFlags,
+            KeymasterCertificateChain attestationChain) {
         return false;
     }
 
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index e5351b4..11fce4d 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -45,6 +45,10 @@
 import static android.app.admin.DevicePolicyManager.DELEGATION_KEEP_UNINSTALLED_PACKAGES;
 import static android.app.admin.DevicePolicyManager.DELEGATION_PACKAGE_ACCESS;
 import static android.app.admin.DevicePolicyManager.DELEGATION_PERMISSION_GRANT;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_BASE_INFO;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_IMEI;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_MEID;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_SERIAL;
 import static android.app.admin.DevicePolicyManager.LEAVE_ALL_SYSTEM_APPS_ENABLED;
 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_COMPLEX;
 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
@@ -217,8 +221,10 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map.Entry;
+import java.util.Map;
 import java.util.Set;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -5052,17 +5058,82 @@
         return false;
     }
 
+    private void enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner(
+            ComponentName who, String callerPackage, int callerUid) throws SecurityException {
+        if (who == null) {
+            if (!mOwners.hasDeviceOwner()) {
+                throw new SecurityException("Not in Device Owner mode.");
+            }
+            if (UserHandle.getUserId(callerUid) != mOwners.getDeviceOwnerUserId()) {
+                throw new SecurityException("Caller not from device owner user");
+            }
+            if (!isCallerDelegate(callerPackage, DELEGATION_CERT_INSTALL)) {
+                throw new SecurityException("Caller with uid " + mInjector.binderGetCallingUid() +
+                        "has no permission to generate keys.");
+            }
+        } else {
+            // Caller provided - check it is the device owner.
+            synchronized (this) {
+                getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
+            }
+        }
+    }
+
+    @VisibleForTesting
+    public static int[] translateIdAttestationFlags(
+            int idAttestationFlags) {
+        Map<Integer, Integer> idTypeToAttestationFlag = new HashMap();
+        idTypeToAttestationFlag.put(ID_TYPE_SERIAL, AttestationUtils.ID_TYPE_SERIAL);
+        idTypeToAttestationFlag.put(ID_TYPE_IMEI, AttestationUtils.ID_TYPE_IMEI);
+        idTypeToAttestationFlag.put(ID_TYPE_MEID, AttestationUtils.ID_TYPE_MEID);
+
+        int numFlagsSet = Integer.bitCount(idAttestationFlags);
+        // No flags are set - return null to indicate no device ID attestation information should
+        // be included in the attestation record.
+        if (numFlagsSet == 0) {
+            return null;
+        }
+
+        // If the ID_TYPE_BASE_INFO is set, make sure that a non-null array is returned, even if
+        // no other flag is set. That will lead to inclusion of general device make data in the
+        // attestation record, but no specific device identifiers.
+        if ((idAttestationFlags & ID_TYPE_BASE_INFO) != 0) {
+            numFlagsSet -= 1;
+            idAttestationFlags = idAttestationFlags & (~ID_TYPE_BASE_INFO);
+        }
+
+        int[] attestationUtilsFlags = new int[numFlagsSet];
+        int i = 0;
+        for (Integer idType: idTypeToAttestationFlag.keySet()) {
+            if ((idType & idAttestationFlags) != 0) {
+                attestationUtilsFlags[i++] = idTypeToAttestationFlag.get(idType);
+            }
+        }
+
+        return attestationUtilsFlags;
+    }
+
     @Override
     public boolean generateKeyPair(ComponentName who, String callerPackage, String algorithm,
             ParcelableKeyGenParameterSpec parcelableKeySpec,
+            int idAttestationFlags,
             KeymasterCertificateChain attestationChain) {
-        enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER,
-                DELEGATION_CERT_INSTALL);
+        // Get attestation flags, if any.
+        final int[] attestationUtilsFlags = translateIdAttestationFlags(idAttestationFlags);
+        final boolean deviceIdAttestationRequired = attestationUtilsFlags != null;
+        final int callingUid = mInjector.binderGetCallingUid();
+
+        if (deviceIdAttestationRequired && attestationUtilsFlags.length > 0) {
+            enforceIsDeviceOwnerOrCertInstallerOfDeviceOwner(who, callerPackage, callingUid);
+        } else {
+            enforceCanManageScope(who, callerPackage, DeviceAdminInfo.USES_POLICY_PROFILE_OWNER,
+                    DELEGATION_CERT_INSTALL);
+        }
         final KeyGenParameterSpec keySpec = parcelableKeySpec.getSpec();
-        if (TextUtils.isEmpty(keySpec.getKeystoreAlias())) {
+        final String alias = keySpec.getKeystoreAlias();
+        if (TextUtils.isEmpty(alias)) {
             throw new IllegalArgumentException("Empty alias provided.");
         }
-        final String alias = keySpec.getKeystoreAlias();
         // As the caller will be granted access to the key, ensure no UID was specified, as
         // it will not have the desired effect.
         if (keySpec.getUid() != KeyStore.UID_SELF) {
@@ -5070,7 +5141,10 @@
             return false;
         }
 
-        final int callingUid = mInjector.binderGetCallingUid();
+        if (deviceIdAttestationRequired && (keySpec.getAttestationChallenge() == null)) {
+            throw new IllegalArgumentException(
+                    "Requested Device ID attestation but challenge is empty.");
+        }
 
         final UserHandle userHandle = mInjector.binderGetCallingUserHandle();
         final long id = mInjector.binderClearCallingIdentity();
@@ -5103,7 +5177,7 @@
                 final byte[] attestationChallenge = keySpec.getAttestationChallenge();
                 if (attestationChallenge != null) {
                     final boolean attestationResult = keyChain.attestKey(
-                            alias, attestationChallenge, attestationChain);
+                            alias, attestationChallenge, attestationUtilsFlags, attestationChain);
                     if (!attestationResult) {
                         Log.e(LOG_TAG, String.format(
                                 "Attestation for %s failed, deleting key.", alias));
@@ -11802,10 +11876,14 @@
 
         final long id = mInjector.binderClearCallingIdentity();
         try {
-            //STOPSHIP add support for COMP, DO, edge cases when device is rebooted/work mode off,
+            //STOPSHIP add support for COMP, edge cases when device is rebooted/work mode off,
             //transfer callbacks and broadcast
-            if (isProfileOwner(admin, callingUserId)) {
-                transferProfileOwner(admin, target, callingUserId);
+            synchronized (this) {
+                if (isProfileOwner(admin, callingUserId)) {
+                    transferProfileOwnerLocked(admin, target, callingUserId);
+                } else if (isDeviceOwner(admin, callingUserId)) {
+                    transferDeviceOwnerLocked(admin, target, callingUserId);
+                }
             }
         } finally {
             mInjector.binderRestoreCallingIdentity(id);
@@ -11815,15 +11893,25 @@
     /**
      * Transfers the profile owner for user with id profileOwnerUserId from admin to target.
      */
-    private void transferProfileOwner(ComponentName admin, ComponentName target,
+    private void transferProfileOwnerLocked(ComponentName admin, ComponentName target,
             int profileOwnerUserId) {
-        synchronized (this) {
-            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");
-        }
+        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");
+    }
+
+    /**
+     * Transfers the device owner for user with id userId from admin to target.
+     */
+    private void transferDeviceOwnerLocked(ComponentName admin, ComponentName target, int userId) {
+        transferActiveAdminUncheckedLocked(target, admin, userId);
+        mOwners.transferDeviceOwner(target);
+        Slog.i(LOG_TAG, "Device owner set: " + target + " on user " + userId);
+        mOwners.writeDeviceOwner();
+        mDeviceAdminServiceController.startServiceForOwner(
+                target.getPackageName(), userId, "transfer-device-owner");
     }
 }
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java b/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
index 9042a8d..2a23888 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/Owners.java
@@ -288,6 +288,17 @@
         }
     }
 
+    void transferDeviceOwner(ComponentName target) {
+        synchronized (mLock) {
+            // We don't set a name because it's not used anyway.
+            // See DevicePolicyManagerService#getDeviceOwnerName
+            mDeviceOwner = new OwnerInfo(null, target,
+                    mDeviceOwner.userRestrictionsMigrated, mDeviceOwner.remoteBugreportUri,
+                    mDeviceOwner.remoteBugreportHash);
+            pushToPackageManagerLocked();
+        }
+    }
+
     ComponentName getProfileOwnerComponent(int userId) {
         synchronized (mLock) {
             OwnerInfo profileOwner = mProfileOwners.get(userId);
diff --git a/services/robotests/src/com/android/server/backup/BackupManagerConstantsTest.java b/services/robotests/src/com/android/server/backup/BackupManagerConstantsTest.java
index c20c376..a473bc6 100644
--- a/services/robotests/src/com/android/server/backup/BackupManagerConstantsTest.java
+++ b/services/robotests/src/com/android/server/backup/BackupManagerConstantsTest.java
@@ -16,19 +16,17 @@
 
 package com.android.server.backup;
 
+import static com.google.common.truth.Truth.assertThat;
+
 import android.app.AlarmManager;
 import android.content.Context;
 import android.os.Handler;
 import android.platform.test.annotations.Presubmit;
 import android.provider.Settings;
 
-import com.android.server.backup.testing.ShadowBackupTransportStub;
-import com.android.server.backup.testing.ShadowContextImplForBackup;
-import com.android.server.backup.testing.ShadowPackageManagerForBackup;
 import com.android.server.testing.FrameworkRobolectricTestRunner;
 import com.android.server.testing.SystemLoaderClasses;
 
-import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -36,19 +34,9 @@
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.annotation.Config;
 
-import static com.google.common.truth.Truth.assertThat;
-
 @RunWith(FrameworkRobolectricTestRunner.class)
-@Config(
-        manifest = Config.NONE,
-        sdk = 26,
-        shadows = {
-                ShadowContextImplForBackup.class,
-                ShadowBackupTransportStub.class,
-                ShadowPackageManagerForBackup.class
-        }
-)
-@SystemLoaderClasses({TransportManager.class})
+@Config(manifest = Config.NONE, sdk = 26)
+@SystemLoaderClasses({BackupManagerConstants.class})
 @Presubmit
 public class BackupManagerConstantsTest {
     private static final String PACKAGE_NAME = "some.package.name";
@@ -59,17 +47,13 @@
         MockitoAnnotations.initMocks(this);
     }
 
-    @After
-    public void tearDown() throws Exception {
-    }
-
     @Test
     public void testDefaultValues() throws Exception {
         final Context context = RuntimeEnvironment.application.getApplicationContext();
         final Handler handler = new Handler();
 
-        Settings.Secure.putString(context.getContentResolver(),
-                Settings.Secure.BACKUP_MANAGER_CONSTANTS, null);
+        Settings.Secure.putString(
+                context.getContentResolver(), Settings.Secure.BACKUP_MANAGER_CONSTANTS, null);
 
         final BackupManagerConstants constants =
                 new BackupManagerConstants(handler, context.getContentResolver());
@@ -93,17 +77,21 @@
         final Context context = RuntimeEnvironment.application.getApplicationContext();
         final Handler handler = new Handler();
 
-        final String recievers_setting = "backup_finished_notification_receivers=" +
-                PACKAGE_NAME + ':' + ANOTHER_PACKAGE_NAME;
-        Settings.Secure.putString(context.getContentResolver(),
-                Settings.Secure.BACKUP_MANAGER_CONSTANTS, recievers_setting);
+        final String recieversSetting =
+                "backup_finished_notification_receivers="
+                        + PACKAGE_NAME
+                        + ':'
+                        + ANOTHER_PACKAGE_NAME;
+        Settings.Secure.putString(
+                context.getContentResolver(),
+                Settings.Secure.BACKUP_MANAGER_CONSTANTS,
+                recieversSetting);
 
         final BackupManagerConstants constants =
                 new BackupManagerConstants(handler, context.getContentResolver());
         constants.start();
 
-        assertThat(constants.getBackupFinishedNotificationReceivers()).isEqualTo(new String[] {
-                PACKAGE_NAME,
-                ANOTHER_PACKAGE_NAME});
+        assertThat(constants.getBackupFinishedNotificationReceivers())
+                .isEqualTo(new String[] {PACKAGE_NAME, ANOTHER_PACKAGE_NAME});
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/accessibility/MagnificationGestureHandlerTest.java b/services/tests/servicestests/src/com/android/server/accessibility/MagnificationGestureHandlerTest.java
index 8a54c4e..8d5556e 100644
--- a/services/tests/servicestests/src/com/android/server/accessibility/MagnificationGestureHandlerTest.java
+++ b/services/tests/servicestests/src/com/android/server/accessibility/MagnificationGestureHandlerTest.java
@@ -32,6 +32,7 @@
 
 import android.annotation.NonNull;
 import android.content.Context;
+import android.os.Message;
 import android.support.test.InstrumentationRegistry;
 import android.support.test.runner.AndroidJUnit4;
 import android.util.DebugUtils;
@@ -48,6 +49,34 @@
 import java.util.function.IntConsumer;
 
 
+/**
+ * Tests the state transitions of {@link MagnificationGestureHandler}
+ *
+ * Here's a dot graph describing the transitions being tested:
+ * {@code
+ *      digraph {
+ *          IDLE -> SHORTCUT_TRIGGERED [label="a11y\nbtn"]
+ *          SHORTCUT_TRIGGERED -> IDLE [label="a11y\nbtn"]
+ *          IDLE -> DOUBLE_TAP [label="2tap"]
+ *          DOUBLE_TAP -> IDLE [label="timeout"]
+ *          DOUBLE_TAP -> TRIPLE_TAP_AND_HOLD [label="down"]
+ *          SHORTCUT_TRIGGERED -> TRIPLE_TAP_AND_HOLD [label="down"]
+ *          TRIPLE_TAP_AND_HOLD -> ZOOMED [label="up"]
+ *          TRIPLE_TAP_AND_HOLD -> DRAGGING_TMP [label="hold/\nswipe"]
+ *          DRAGGING_TMP -> IDLE [label="release"]
+ *          ZOOMED -> ZOOMED_DOUBLE_TAP [label="2tap"]
+ *          ZOOMED_DOUBLE_TAP -> ZOOMED [label="timeout"]
+ *          ZOOMED_DOUBLE_TAP -> DRAGGING [label="hold"]
+ *          ZOOMED_DOUBLE_TAP -> IDLE [label="tap"]
+ *          DRAGGING -> ZOOMED [label="release"]
+ *          ZOOMED -> IDLE [label="a11y\nbtn"]
+ *          ZOOMED -> PANNING [label="2hold"]
+ *          PANNING -> PANNING_SCALING [label="pinch"]
+ *          PANNING_SCALING -> ZOOMED [label="release"]
+ *          PANNING -> ZOOMED [label="release"]
+ *      }
+ * }
+ */
 @RunWith(AndroidJUnit4.class)
 public class MagnificationGestureHandlerTest {
 
@@ -76,6 +105,8 @@
     private MagnificationGestureHandler mMgh;
     private TestHandler mHandler;
 
+    private long mLastDownTime = Integer.MIN_VALUE;
+
     @Before
     public void setUp() {
         mContext = InstrumentationRegistry.getContext();
@@ -104,7 +135,13 @@
         MagnificationGestureHandler h = new MagnificationGestureHandler(
                 mContext, mMagnificationController,
                 detectTripleTap, detectShortcutTrigger);
-        mHandler = new TestHandler(h.mDetectingState, mClock);
+        mHandler = new TestHandler(h.mDetectingState, mClock) {
+            @Override
+            protected String messageToString(Message m) {
+                return DebugUtils.valueToString(
+                        MagnificationGestureHandler.DetectingState.class, "MESSAGE_", m.what);
+            }
+        };
         h.mDetectingState.mHandler = mHandler;
         h.setNext(strictMock(EventStreamTransformation.class));
         return h;
@@ -184,11 +221,11 @@
             fastForward1sec();
         }, STATE_ZOOMED);
 
-        // tap+tap+swipe gets delegated
-        assertTransition(STATE_2TAPS, () -> {
-            allowEventDelegation();
-            swipe();
-        }, STATE_IDLE);
+        // tap+tap+swipe doesn't get delegated
+        assertTransition(STATE_2TAPS, () -> swipe(), STATE_IDLE);
+
+        // tap+tap+swipe initiates viewport dragging immediately
+        assertTransition(STATE_2TAPS, () -> swipeAndHold(), STATE_DRAGGING_TMP);
     }
 
     @Test
@@ -439,23 +476,24 @@
     }
 
     private void tap() {
-        MotionEvent downEvent = downEvent();
-        send(downEvent);
-        send(upEvent(downEvent.getDownTime()));
+        send(downEvent());
+        send(upEvent());
     }
 
     private void swipe() {
-        MotionEvent downEvent = downEvent();
-        send(downEvent);
+        swipeAndHold();
+        send(upEvent());
+    }
+
+    private void swipeAndHold() {
+        send(downEvent());
         send(moveEvent(DEFAULT_X * 2, DEFAULT_Y * 2));
-        send(upEvent(downEvent.getDownTime()));
     }
 
     private void longTap() {
-        MotionEvent downEvent = downEvent();
-        send(downEvent);
+        send(downEvent());
         fastForward(2000);
-        send(upEvent(downEvent.getDownTime()));
+        send(upEvent());
     }
 
     private void triggerShortcut() {
@@ -473,16 +511,17 @@
     }
 
     private MotionEvent moveEvent(float x, float y) {
-        return MotionEvent.obtain(defaultDownTime(), mClock.now(), ACTION_MOVE, x, y, 0);
+        return MotionEvent.obtain(mLastDownTime, mClock.now(), ACTION_MOVE, x, y, 0);
     }
 
     private MotionEvent downEvent() {
-        return MotionEvent.obtain(mClock.now(), mClock.now(),
+        mLastDownTime = mClock.now();
+        return MotionEvent.obtain(mLastDownTime, mLastDownTime,
                 ACTION_DOWN, DEFAULT_X, DEFAULT_Y, 0);
     }
 
     private MotionEvent upEvent() {
-        return upEvent(defaultDownTime());
+        return upEvent(mLastDownTime);
     }
 
     private MotionEvent upEvent(long downTime) {
@@ -490,11 +529,6 @@
                 MotionEvent.ACTION_UP, DEFAULT_X, DEFAULT_Y, 0);
     }
 
-    private long defaultDownTime() {
-        MotionEvent lastDown = mMgh.mDetectingState.mLastDown;
-        return lastDown == null ? mClock.now() - 1 : lastDown.getDownTime();
-    }
-
     private MotionEvent pointerEvent(int action, float x, float y) {
         MotionEvent.PointerProperties defPointerProperties = new MotionEvent.PointerProperties();
         defPointerProperties.id = 0;
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 60783db..58ac7d2 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
@@ -17,6 +17,10 @@
 
 import static android.app.admin.DevicePolicyManager.DELEGATION_APP_RESTRICTIONS;
 import static android.app.admin.DevicePolicyManager.DELEGATION_CERT_INSTALL;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_BASE_INFO;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_IMEI;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_MEID;
+import static android.app.admin.DevicePolicyManager.ID_TYPE_SERIAL;
 import static android.app.admin.DevicePolicyManager.WIPE_EUICC;
 import static android.os.UserManagerInternal.CAMERA_DISABLED_GLOBALLY;
 import static android.os.UserManagerInternal.CAMERA_DISABLED_LOCALLY;
@@ -71,6 +75,7 @@
 import android.platform.test.annotations.Presubmit;
 import android.provider.Settings;
 import android.security.KeyChain;
+import android.security.keystore.AttestationUtils;
 import android.telephony.TelephonyManager;
 import android.test.MoreAsserts;
 import android.test.suitebuilder.annotation.SmallTest;
@@ -4459,6 +4464,47 @@
         });
     }
 
+    private void assertAttestationFlags(int attestationFlags, int[] expectedFlags) {
+        int[] gotFlags = DevicePolicyManagerService.translateIdAttestationFlags(attestationFlags);
+        Arrays.sort(gotFlags);
+        Arrays.sort(expectedFlags);
+        assertTrue(Arrays.equals(expectedFlags, gotFlags));
+    }
+
+    public void testTranslationOfIdAttestationFlag() {
+        int[] allIdTypes = new int[]{ID_TYPE_SERIAL, ID_TYPE_IMEI, ID_TYPE_MEID};
+        int[] correspondingAttUtilsTypes = new int[]{
+            AttestationUtils.ID_TYPE_SERIAL, AttestationUtils.ID_TYPE_IMEI,
+            AttestationUtils.ID_TYPE_MEID};
+
+        // Test translation of zero flags
+        assertNull(DevicePolicyManagerService.translateIdAttestationFlags(0));
+
+        // Test translation of the ID_TYPE_BASE_INFO flag, which should yield an empty, but
+        // non-null array
+        assertAttestationFlags(ID_TYPE_BASE_INFO, new int[] {});
+
+        // Test translation of a single flag
+        assertAttestationFlags(ID_TYPE_BASE_INFO | ID_TYPE_SERIAL,
+                new int[] {AttestationUtils.ID_TYPE_SERIAL});
+        assertAttestationFlags(ID_TYPE_SERIAL, new int[] {AttestationUtils.ID_TYPE_SERIAL});
+
+        // Test translation of two flags
+        assertAttestationFlags(ID_TYPE_SERIAL | ID_TYPE_IMEI,
+                new int[] {AttestationUtils.ID_TYPE_IMEI, AttestationUtils.ID_TYPE_SERIAL});
+        assertAttestationFlags(ID_TYPE_BASE_INFO | ID_TYPE_MEID | ID_TYPE_SERIAL,
+                new int[] {AttestationUtils.ID_TYPE_MEID, AttestationUtils.ID_TYPE_SERIAL});
+
+        // Test translation of all three flags
+        assertAttestationFlags(ID_TYPE_SERIAL | ID_TYPE_IMEI | ID_TYPE_MEID,
+                new int[] {AttestationUtils.ID_TYPE_IMEI, AttestationUtils.ID_TYPE_SERIAL,
+                    AttestationUtils.ID_TYPE_MEID});
+        // Test translation of all three flags
+        assertAttestationFlags(ID_TYPE_SERIAL | ID_TYPE_IMEI | ID_TYPE_MEID | ID_TYPE_BASE_INFO,
+                new int[] {AttestationUtils.ID_TYPE_IMEI, AttestationUtils.ID_TYPE_SERIAL,
+                    AttestationUtils.ID_TYPE_MEID});
+    }
+
     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/display/BrightnessMappingStrategyTest.java b/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
index 2629b12..5105f4e 100644
--- a/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
+++ b/services/tests/servicestests/src/com/android/server/display/BrightnessMappingStrategyTest.java
@@ -20,7 +20,13 @@
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.anyFloat;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
+import android.content.res.Resources;
+import android.content.res.TypedArray;
 import android.os.PowerManager;
 import android.support.test.filters.SmallTest;
 import android.support.test.runner.AndroidJUnit4;
@@ -35,18 +41,18 @@
 @RunWith(AndroidJUnit4.class)
 public class BrightnessMappingStrategyTest {
 
-    private static final float[] LUX_LEVELS = {
-        0f,
-        5f,
-        20f,
-        40f,
-        100f,
-        325f,
-        600f,
-        1250f,
-        2200f,
-        4000f,
-        5000f
+    private static final int[] LUX_LEVELS = {
+        0,
+        5,
+        20,
+        40,
+        100,
+        325,
+        600,
+        1250,
+        2200,
+        4000,
+        5000
     };
 
     private static final float[] DISPLAY_LEVELS_NITS = {
@@ -80,11 +86,13 @@
     private static final float[] DISPLAY_RANGE_NITS = { 2.685f, 478.5f };
     private static final int[] BACKLIGHT_RANGE = { 1, 255 };
 
+    private static final float[] EMPTY_FLOAT_ARRAY = new float[0];
+    private static final int[] EMPTY_INT_ARRAY = new int[0];
+
     @Test
     public void testSimpleStrategyMappingAtControlPoints() {
-        BrightnessMappingStrategy simple = BrightnessMappingStrategy.create(
-                LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT,
-                null /*brightnessLevelsNits*/, null /*nitsRange*/, null /*backlightRange*/);
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT);
+        BrightnessMappingStrategy simple = BrightnessMappingStrategy.create(res);
         assertNotNull("BrightnessMappingStrategy should not be null", simple);
         for (int i = 0; i < LUX_LEVELS.length; i++) {
             final float expectedLevel =
@@ -96,9 +104,8 @@
 
     @Test
     public void testSimpleStrategyMappingBetweenControlPoints() {
-        BrightnessMappingStrategy simple = BrightnessMappingStrategy.create(
-                LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT,
-                null /*brightnessLevelsNits*/, null /*nitsRange*/, null /*backlightRange*/);
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT);
+        BrightnessMappingStrategy simple = BrightnessMappingStrategy.create(res);
         assertNotNull("BrightnessMappingStrategy should not be null", simple);
         for (int i = 1; i < LUX_LEVELS.length; i++) {
             final float lux = (LUX_LEVELS[i - 1] + LUX_LEVELS[i]) / 2;
@@ -111,9 +118,9 @@
 
     @Test
     public void testPhysicalStrategyMappingAtControlPoints() {
-        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_NITS,
+                DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(res);
         assertNotNull("BrightnessMappingStrategy should not be null", physical);
         for (int i = 0; i < LUX_LEVELS.length; i++) {
             final float expectedLevel = DISPLAY_LEVELS_NITS[i] / DISPLAY_RANGE_NITS[1];
@@ -124,9 +131,9 @@
 
     @Test
     public void testPhysicalStrategyMappingBetweenControlPoints() {
-        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_NITS,
+                DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(res);
         assertNotNull("BrightnessMappingStrategy should not be null", physical);
         Spline backlightToBrightness =
                 Spline.createSpline(toFloatArray(BACKLIGHT_RANGE), DISPLAY_RANGE_NITS);
@@ -141,82 +148,79 @@
 
     @Test
     public void testDefaultStrategyIsPhysical() {
-        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(
-                LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT,
+        Resources res = createResources(LUX_LEVELS, DISPLAY_LEVELS_BACKLIGHT,
                 DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(res);
         assertTrue(strategy instanceof BrightnessMappingStrategy.PhysicalMappingStrategy);
     }
 
     @Test
     public void testNonStrictlyIncreasingLuxLevelsFails() {
-        final float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length);
+        final int[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length);
         final int idx = lux.length / 2;
-        float tmp = lux[idx];
+        int tmp = lux[idx];
         lux[idx] = lux[idx+1];
         lux[idx+1] = tmp;
-        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(
-                lux, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        Resources res = createResources(lux, DISPLAY_LEVELS_NITS,
+                DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
 
         // And make sure we get the same result even if it's monotone but not increasing.
         lux[idx] = lux[idx+1];
-        strategy = BrightnessMappingStrategy.create(
-                lux, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        res = createResources(lux, DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
     }
 
     @Test
     public void testDifferentNumberOfControlPointValuesFails() {
         //Extra lux level
-        final float[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length+1);
+        final int[] lux = Arrays.copyOf(LUX_LEVELS, LUX_LEVELS.length+1);
         // Make sure it's strictly increasing so that the only failure is the differing array
         // lengths
         lux[lux.length - 1] = lux[lux.length - 2] + 1;
-        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(
-                lux, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        Resources res = createResources(lux, DISPLAY_LEVELS_NITS,
+                DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
 
-        strategy = BrightnessMappingStrategy.create(
-                lux, DISPLAY_LEVELS_BACKLIGHT,
-                null /*brightnessLevelsNits*/, null /*nitsRange*/, null /*backlightRange*/);
+        res = createResources(lux, DISPLAY_LEVELS_BACKLIGHT);
+        strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
 
         // Extra backlight level
         final int[] backlight = Arrays.copyOf(
                 DISPLAY_LEVELS_BACKLIGHT, DISPLAY_LEVELS_BACKLIGHT.length+1);
         backlight[backlight.length - 1] = backlight[backlight.length - 2] + 1;
-        strategy = BrightnessMappingStrategy.create(
-                LUX_LEVELS, backlight,
-                null /*brightnessLevelsNits*/, null /*nitsRange*/, null /*backlightRange*/);
+        res = createResources(LUX_LEVELS, backlight);
+        strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
 
         // Extra nits level
         final float[] nits = Arrays.copyOf(DISPLAY_RANGE_NITS, DISPLAY_LEVELS_NITS.length+1);
         nits[nits.length - 1] = nits[nits.length - 2] + 1;
-        strategy = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                nits, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        res = createResources(LUX_LEVELS, nits, DISPLAY_RANGE_NITS, BACKLIGHT_RANGE);
+        strategy = BrightnessMappingStrategy.create(res);
         assertNull(strategy);
     }
 
     @Test
     public void testPhysicalStrategyRequiresNitsMapping() {
-        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, null, BACKLIGHT_RANGE);
+        Resources res = createResources(LUX_LEVELS, EMPTY_INT_ARRAY /*brightnessLevelsBacklight*/,
+                DISPLAY_LEVELS_NITS, EMPTY_FLOAT_ARRAY /*nitsRange*/, BACKLIGHT_RANGE);
+        BrightnessMappingStrategy physical = BrightnessMappingStrategy.create(res);
         assertNull(physical);
 
-        physical = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, null);
+        res = createResources(LUX_LEVELS, EMPTY_INT_ARRAY /*brightnessLevelsBacklight*/,
+                DISPLAY_LEVELS_NITS, DISPLAY_RANGE_NITS, EMPTY_INT_ARRAY /*backlightRange*/);
+        physical = BrightnessMappingStrategy.create(res);
         assertNull(physical);
 
-        physical = BrightnessMappingStrategy.create(
-                LUX_LEVELS, null /*brightnessLevelsBacklight*/,
-                DISPLAY_LEVELS_NITS, null, null);
+        res = createResources(LUX_LEVELS, EMPTY_INT_ARRAY /*brightnessLevelsBacklight*/,
+                DISPLAY_LEVELS_NITS, EMPTY_FLOAT_ARRAY /*nitsRange*/,
+                EMPTY_INT_ARRAY /*backlightRange*/);
+        physical = BrightnessMappingStrategy.create(res);
         assertNull(physical);
     }
 
@@ -227,4 +231,73 @@
         }
         return newVals;
     }
+
+    private Resources createResources(int[] luxLevels, int[] brightnessLevelsBacklight) {
+        return createResources(luxLevels, brightnessLevelsBacklight,
+                EMPTY_FLOAT_ARRAY /*brightnessLevelsNits*/, EMPTY_FLOAT_ARRAY /*nitsRange*/,
+                EMPTY_INT_ARRAY /*backlightRange*/);
+    }
+
+    private Resources createResources(int[] luxLevels, float[] brightnessLevelsNits,
+            float[] nitsRange, int[] backlightRange) {
+        return createResources(luxLevels, EMPTY_INT_ARRAY /*brightnessLevelsBacklight*/,
+                brightnessLevelsNits, nitsRange, backlightRange);
+    }
+
+    private Resources createResources(int[] luxLevels, int[] brightnessLevelsBacklight,
+            float[] brightnessLevelsNits, float[] nitsRange, int[] backlightRange) {
+        Resources mockResources = mock(Resources.class);
+        // For historical reasons, the lux levels resource implicitly defines the first point as 0,
+        // so we need to chop it off of the array the mock resource object returns.
+        int[] luxLevelsResource = Arrays.copyOfRange(luxLevels, 1, luxLevels.length);
+        when(mockResources.getIntArray(com.android.internal.R.array.config_autoBrightnessLevels))
+                .thenReturn(luxLevelsResource);
+
+        when(mockResources.getIntArray(
+                com.android.internal.R.array.config_autoBrightnessLcdBacklightValues))
+                .thenReturn(brightnessLevelsBacklight);
+
+        TypedArray mockBrightnessLevelNits = createFloatTypedArray(brightnessLevelsNits);
+        when(mockResources.obtainTypedArray(
+                com.android.internal.R.array.config_autoBrightnessDisplayValuesNits))
+                .thenReturn(mockBrightnessLevelNits);
+
+        TypedArray mockNitsRange = createFloatTypedArray(nitsRange);
+        when(mockResources.obtainTypedArray(
+                com.android.internal.R.array.config_screenBrightnessNits))
+                .thenReturn(mockNitsRange);
+
+        when(mockResources.getIntArray(
+                com.android.internal.R.array.config_screenBrightnessBacklight))
+                .thenReturn(backlightRange);
+
+        when(mockResources.getInteger(
+                com.android.internal.R.integer.config_screenBrightnessSettingMinimum))
+                .thenReturn(1);
+        when(mockResources.getInteger(
+                com.android.internal.R.integer.config_screenBrightnessSettingMaximum))
+                .thenReturn(255);
+        return mockResources;
+    }
+
+    private TypedArray createFloatTypedArray(float[] vals) {
+        TypedArray mockArray = mock(TypedArray.class);
+        when(mockArray.length()).thenAnswer(invocation -> {
+            return vals.length;
+        });
+        when(mockArray.getFloat(anyInt(), anyFloat())).thenAnswer(invocation -> {
+            final float def = (float) invocation.getArguments()[1];
+            if (vals == null) {
+                return def;
+            }
+            int idx = (int) invocation.getArguments()[0];
+            if (idx >= 0 && idx < vals.length) {
+                return vals[idx];
+            } else {
+                return def;
+            }
+        });
+        return mockArray;
+    }
+
 }
diff --git a/services/tests/servicestests/src/com/android/server/display/BrightnessTrackerTest.java b/services/tests/servicestests/src/com/android/server/display/BrightnessTrackerTest.java
index 926009e..08edd52 100644
--- a/services/tests/servicestests/src/com/android/server/display/BrightnessTrackerTest.java
+++ b/services/tests/servicestests/src/com/android/server/display/BrightnessTrackerTest.java
@@ -66,6 +66,8 @@
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class BrightnessTrackerTest {
+    private static final float DEFAULT_INITIAL_BRIGHTNESS = 2.5f;
+    private static final float FLOAT_DELTA = 0.01f;
 
     private BrightnessTracker mTracker;
     private TestInjector mInjector;
@@ -98,7 +100,6 @@
         mInjector.mInteractive = false;
         startTracker(mTracker);
         assertNull(mInjector.mSensorListener);
-        assertNotNull(mInjector.mSettingsObserver);
         assertNotNull(mInjector.mBroadcastReceiver);
         assertTrue(mInjector.mIdleScheduled);
         Intent onIntent = new Intent();
@@ -119,7 +120,6 @@
 
         mTracker.stop();
         assertNull(mInjector.mSensorListener);
-        assertNull(mInjector.mSettingsObserver);
         assertNull(mInjector.mBroadcastReceiver);
         assertFalse(mInjector.mIdleScheduled);
     }
@@ -128,12 +128,10 @@
     public void testBrightnessEvent() {
         final int brightness = 20;
 
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
         startTracker(mTracker);
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(1.0f));
         mInjector.incrementTime(TimeUnit.SECONDS.toMillis(2));
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, brightness);
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
         mTracker.stop();
 
@@ -141,10 +139,11 @@
         BrightnessChangeEvent event = events.get(0);
         assertEquals(mInjector.currentTimeMillis(), event.timeStamp);
         assertEquals(1, event.luxValues.length);
-        assertEquals(1.0f, event.luxValues[0], 0.1f);
+        assertEquals(1.0f, event.luxValues[0], FLOAT_DELTA);
         assertEquals(mInjector.currentTimeMillis() - TimeUnit.SECONDS.toMillis(2),
                 event.luxTimestamps[0]);
-        assertEquals(brightness, event.brightness);
+        assertEquals(brightness, event.brightness, FLOAT_DELTA);
+        assertEquals(DEFAULT_INITIAL_BRIGHTNESS, event.lastBrightness, FLOAT_DELTA);
 
         // System had no data so these should all be at defaults.
         assertEquals(Float.NaN, event.batteryLevel, 0.0);
@@ -154,21 +153,18 @@
 
     @Test
     public void testBrightnessFullPopulatedEvent() {
-        final int lastBrightness = 230;
+        final int initialBrightness = 230;
         final int brightness = 130;
 
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, lastBrightness);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_ACTIVATED, 1);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_COLOR_TEMPERATURE, 3333);
 
-        startTracker(mTracker);
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
+        startTracker(mTracker, initialBrightness);
         mInjector.mBroadcastReceiver.onReceive(InstrumentationRegistry.getContext(),
                 batteryChangeEvent(30, 60));
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(1000.0f));
         final long sensorTime = mInjector.currentTimeMillis();
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, brightness);
         List<BrightnessChangeEvent> eventsNoPackage
                 = mTracker.getEvents(0, false).getList();
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
@@ -179,9 +175,9 @@
         assertEquals(event.timeStamp, mInjector.currentTimeMillis());
         assertArrayEquals(new float[] {1000.0f}, event.luxValues, 0.01f);
         assertArrayEquals(new long[] {sensorTime}, event.luxTimestamps);
-        assertEquals(brightness, event.brightness);
-        assertEquals(lastBrightness, event.lastBrightness);
-        assertEquals(0.5, event.batteryLevel, 0.01);
+        assertEquals(brightness, event.brightness, FLOAT_DELTA);
+        assertEquals(initialBrightness, event.lastBrightness, FLOAT_DELTA);
+        assertEquals(0.5, event.batteryLevel, FLOAT_DELTA);
         assertTrue(event.nightMode);
         assertEquals(3333, event.colorTemperature);
         assertEquals("a.package", event.packageName);
@@ -192,45 +188,34 @@
     }
 
     @Test
-    public void testIgnoreSelfChange() {
+    public void testIgnoreAutomaticBrightnessChange() {
         final int initialBrightness = 30;
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, initialBrightness);
-        startTracker(mTracker);
+        startTracker(mTracker, initialBrightness);
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(1.0f));
         mInjector.incrementTime(TimeUnit.SECONDS.toMillis(1));
 
         final int systemUpdatedBrightness = 20;
-        mTracker.setBrightness(systemUpdatedBrightness, 0);
-        assertEquals(systemUpdatedBrightness,
-                (int) mInjector.mSystemIntSettings.get(Settings.System.SCREEN_BRIGHTNESS));
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, systemUpdatedBrightness, false /*userInitiated*/);
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
         // No events because we filtered out our change.
         assertEquals(0, events.size());
 
         final int firstUserUpdateBrightness = 20;
         // Then change comes from somewhere else so we shouldn't filter.
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS,
-                firstUserUpdateBrightness);
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, firstUserUpdateBrightness);
 
         // and with a different brightness value.
         final int secondUserUpdateBrightness = 34;
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS,
-                secondUserUpdateBrightness);
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, secondUserUpdateBrightness);
         events = mTracker.getEvents(0, true).getList();
 
         assertEquals(2, events.size());
         // First event is change from system update (20) to first user update (20)
-        assertEquals(systemUpdatedBrightness, events.get(0).lastBrightness);
-        assertEquals(firstUserUpdateBrightness, events.get(0).brightness);
+        assertEquals(systemUpdatedBrightness, events.get(0).lastBrightness, FLOAT_DELTA);
+        assertEquals(firstUserUpdateBrightness, events.get(0).brightness, FLOAT_DELTA);
         // Second event is from first to second user update.
-        assertEquals(firstUserUpdateBrightness, events.get(1).lastBrightness);
-        assertEquals(secondUserUpdateBrightness, events.get(1).brightness);
+        assertEquals(firstUserUpdateBrightness, events.get(1).lastBrightness, FLOAT_DELTA);
+        assertEquals(secondUserUpdateBrightness, events.get(1).brightness, FLOAT_DELTA);
 
         mTracker.stop();
     }
@@ -243,9 +228,7 @@
         for (int brightness = 0; brightness <= 255; ++brightness) {
             mInjector.mSensorListener.onSensorChanged(createSensorEvent(1.0f));
             mInjector.incrementTime(TimeUnit.SECONDS.toNanos(1));
-            mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
-            mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                    Settings.System.SCREEN_BRIGHTNESS));
+            notifyBrightnessChanged(mTracker, brightness);
         }
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
         mTracker.stop();
@@ -254,14 +237,13 @@
         assertEquals(100, events.size());
         for (int i = 0; i < events.size(); i++) {
             BrightnessChangeEvent event = events.get(i);
-            assertEquals(156 + i, event.brightness);
+            assertEquals(156 + i, event.brightness, FLOAT_DELTA);
         }
     }
 
     @Test
     public void testLimitedSensorEvents() {
         final int brightness = 20;
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
 
         startTracker(mTracker);
         // 20 Sensor events 1 second apart.
@@ -269,8 +251,7 @@
             mInjector.incrementTime(TimeUnit.SECONDS.toMillis(1));
             mInjector.mSensorListener.onSensorChanged(createSensorEvent(i + 1.0f));
         }
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, 20);
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
         mTracker.stop();
 
@@ -284,7 +265,7 @@
             assertEquals(event.luxTimestamps[11 - i],
                     mInjector.currentTimeMillis() - i * TimeUnit.SECONDS.toMillis(1));
         }
-        assertEquals(brightness, event.brightness);
+        assertEquals(brightness, event.brightness, FLOAT_DELTA);
     }
 
     @Test
@@ -298,25 +279,25 @@
         String eventFile =
                 "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n"
                 + "<events>\n"
-                + "<event brightness=\"194\" timestamp=\""
+                + "<event nits=\"194.2\" timestamp=\""
                 + Long.toString(someTimeAgo) + "\" packageName=\""
                 + "com.example.app\" user=\"10\" "
-                + "lastBrightness=\"32\" "
+                + "lastNits=\"32.333\" "
                 + "batteryLevel=\"1.0\" nightMode=\"false\" colorTemperature=\"0\"\n"
                 + "lux=\"32.2,31.1\" luxTimestamps=\""
                 + Long.toString(someTimeAgo) + "," + Long.toString(someTimeAgo) + "\"/>"
-                + "<event brightness=\"71\" timestamp=\""
+                + "<event nits=\"71\" timestamp=\""
                 + Long.toString(someTimeAgo) + "\" packageName=\""
                 + "com.android.anapp\" user=\"11\" "
-                + "lastBrightness=\"32\" "
+                + "lastNits=\"32\" "
                 + "batteryLevel=\"0.5\" nightMode=\"true\" colorTemperature=\"3235\"\n"
                 + "lux=\"132.2,131.1\" luxTimestamps=\""
                 + Long.toString(someTimeAgo) + "," + Long.toString(someTimeAgo) + "\"/>"
                 // Event that is too old so shouldn't show up.
-                + "<event brightness=\"142\" timestamp=\""
+                + "<event nits=\"142\" timestamp=\""
                 + Long.toString(twoMonthsAgo) + "\" packageName=\""
                 + "com.example.app\" user=\"10\" "
-                + "lastBrightness=\"32\" "
+                + "lastNits=\"32\" "
                 + "batteryLevel=\"1.0\" nightMode=\"false\" colorTemperature=\"0\"\n"
                 + "lux=\"32.2,31.1\" luxTimestamps=\""
                 + Long.toString(twoMonthsAgo) + "," + Long.toString(twoMonthsAgo) + "\"/>"
@@ -326,27 +307,27 @@
         assertEquals(1, events.size());
         BrightnessChangeEvent event = events.get(0);
         assertEquals(someTimeAgo, event.timeStamp);
-        assertEquals(194, event.brightness);
-        assertArrayEquals(new float[] {32.2f, 31.1f}, event.luxValues, 0.01f);
+        assertEquals(194.2, event.brightness, FLOAT_DELTA);
+        assertArrayEquals(new float[] {32.2f, 31.1f}, event.luxValues, FLOAT_DELTA);
         assertArrayEquals(new long[] {someTimeAgo, someTimeAgo}, event.luxTimestamps);
-        assertEquals(32, event.lastBrightness);
+        assertEquals(32.333, event.lastBrightness, FLOAT_DELTA);
         assertEquals(0, event.userId);
         assertFalse(event.nightMode);
-        assertEquals(1.0f, event.batteryLevel, 0.01);
+        assertEquals(1.0f, event.batteryLevel, FLOAT_DELTA);
         assertEquals("com.example.app", event.packageName);
 
         events = tracker.getEvents(1, true).getList();
         assertEquals(1, events.size());
         event = events.get(0);
         assertEquals(someTimeAgo, event.timeStamp);
-        assertEquals(71, event.brightness);
-        assertArrayEquals(new float[] {132.2f, 131.1f}, event.luxValues, 0.01f);
+        assertEquals(71, event.brightness, FLOAT_DELTA);
+        assertArrayEquals(new float[] {132.2f, 131.1f}, event.luxValues, FLOAT_DELTA);
         assertArrayEquals(new long[] {someTimeAgo, someTimeAgo}, event.luxTimestamps);
-        assertEquals(32, event.lastBrightness);
+        assertEquals(32, event.lastBrightness, FLOAT_DELTA);
         assertEquals(1, event.userId);
         assertTrue(event.nightMode);
         assertEquals(3235, event.colorTemperature);
-        assertEquals(0.5f, event.batteryLevel, 0.01);
+        assertEquals(0.5f, event.batteryLevel, FLOAT_DELTA);
         assertEquals("com.android.anapp", event.packageName);
     }
 
@@ -370,7 +351,7 @@
         eventFile =
                 "<?xml version='1.0' encoding='utf-8' standalone='yes' ?>\n"
                         + "<events>\n"
-                        + "<event brightness=\"194\" timestamp=\"" + someTimeAgo + "\" packageName=\""
+                        + "<event nits=\"194\" timestamp=\"" + someTimeAgo + "\" packageName=\""
                         + "com.example.app\" user=\"10\" "
                         + "batteryLevel=\"0.7\" nightMode=\"false\" colorTemperature=\"0\" />\n"
                         + "</events>";
@@ -386,7 +367,6 @@
     public void testWriteThenRead() throws Exception {
         final int brightness = 20;
 
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_ACTIVATED, 1);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_COLOR_TEMPERATURE, 3339);
 
@@ -399,8 +379,7 @@
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(3000.0f));
         final long secondSensorTime = mInjector.currentTimeMillis();
         mInjector.incrementTime(TimeUnit.SECONDS.toMillis(3));
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, brightness);
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         mTracker.writeEventsLocked(baos);
         mTracker.stop();
@@ -414,10 +393,10 @@
 
         assertEquals(1, events.size());
         BrightnessChangeEvent event = events.get(0);
-        assertArrayEquals(new float[] {2000.0f, 3000.0f}, event.luxValues, 0.01f);
+        assertArrayEquals(new float[] {2000.0f, 3000.0f}, event.luxValues, FLOAT_DELTA);
         assertArrayEquals(new long[] {firstSensorTime, secondSensorTime}, event.luxTimestamps);
-        assertEquals(brightness, event.brightness);
-        assertEquals(0.3, event.batteryLevel, 0.01f);
+        assertEquals(brightness, event.brightness, FLOAT_DELTA);
+        assertEquals(0.3, event.batteryLevel, FLOAT_DELTA);
         assertTrue(event.nightMode);
         assertEquals(3339, event.colorTemperature);
     }
@@ -426,7 +405,6 @@
     public void testWritePrunesOldEvents() throws Exception {
         final int brightness = 20;
 
-        mInjector.mSystemIntSettings.put(Settings.System.SCREEN_BRIGHTNESS, brightness);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_ACTIVATED, 1);
         mInjector.mSecureIntSettings.put(Settings.Secure.NIGHT_DISPLAY_COLOR_TEMPERATURE, 3339);
 
@@ -437,14 +415,12 @@
         mInjector.incrementTime(TimeUnit.SECONDS.toMillis(1));
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(2000.0f));
         final long sensorTime = mInjector.currentTimeMillis();
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, brightness);
 
         // 31 days later
         mInjector.incrementTime(TimeUnit.DAYS.toMillis(31));
         mInjector.mSensorListener.onSensorChanged(createSensorEvent(3000.0f));
-        mInjector.mSettingsObserver.onChange(false, Settings.System.getUriFor(
-                Settings.System.SCREEN_BRIGHTNESS));
+        notifyBrightnessChanged(mTracker, brightness);
         final long eventTime = mInjector.currentTimeMillis();
 
         List<BrightnessChangeEvent> events = mTracker.getEvents(0, true).getList();
@@ -460,10 +436,10 @@
         assertEquals(eventTime, event.timeStamp);
 
         // We will keep one of the old sensor events because we keep 1 event outside the window.
-        assertArrayEquals(new float[] {2000.0f, 3000.0f}, event.luxValues, 0.01f);
+        assertArrayEquals(new float[] {2000.0f, 3000.0f}, event.luxValues, FLOAT_DELTA);
         assertArrayEquals(new long[] {sensorTime, eventTime}, event.luxTimestamps);
-        assertEquals(brightness, event.brightness);
-        assertEquals(0.3, event.batteryLevel, 0.01f);
+        assertEquals(brightness, event.brightness, FLOAT_DELTA);
+        assertEquals(0.3, event.batteryLevel, FLOAT_DELTA);
         assertTrue(event.nightMode);
         assertEquals(3339, event.colorTemperature);
     }
@@ -472,7 +448,7 @@
     public void testParcelUnParcel() {
         Parcel parcel = Parcel.obtain();
         BrightnessChangeEvent event = new BrightnessChangeEvent();
-        event.brightness = 23;
+        event.brightness = 23f;
         event.timeStamp = 345L;
         event.packageName = "com.example";
         event.userId = 12;
@@ -485,7 +461,7 @@
         event.batteryLevel = 0.7f;
         event.nightMode = false;
         event.colorTemperature = 345;
-        event.lastBrightness = 50;
+        event.lastBrightness = 50f;
 
         event.writeToParcel(parcel, 0);
         byte[] parceled = parcel.marshall();
@@ -497,16 +473,16 @@
 
         BrightnessChangeEvent event2 = BrightnessChangeEvent.CREATOR.createFromParcel(parcel);
         parcel.recycle();
-        assertEquals(event.brightness, event2.brightness);
+        assertEquals(event.brightness, event2.brightness, FLOAT_DELTA);
         assertEquals(event.timeStamp, event2.timeStamp);
         assertEquals(event.packageName, event2.packageName);
         assertEquals(event.userId, event2.userId);
-        assertArrayEquals(event.luxValues, event2.luxValues, 0.01f);
+        assertArrayEquals(event.luxValues, event2.luxValues, FLOAT_DELTA);
         assertArrayEquals(event.luxTimestamps, event2.luxTimestamps);
-        assertEquals(event.batteryLevel, event2.batteryLevel, 0.01f);
+        assertEquals(event.batteryLevel, event2.batteryLevel, FLOAT_DELTA);
         assertEquals(event.nightMode, event2.nightMode);
         assertEquals(event.colorTemperature, event2.colorTemperature);
-        assertEquals(event.lastBrightness, event2.lastBrightness);
+        assertEquals(event.lastBrightness, event2.lastBrightness, FLOAT_DELTA);
 
         parcel = Parcel.obtain();
         event.batteryLevel = Float.NaN;
@@ -518,7 +494,7 @@
         parcel.unmarshall(parceled, 0, parceled.length);
         parcel.setDataPosition(0);
         event2 = BrightnessChangeEvent.CREATOR.createFromParcel(parcel);
-        assertEquals(event.batteryLevel, event2.batteryLevel, 0.01f);
+        assertEquals(event.batteryLevel, event2.batteryLevel, FLOAT_DELTA);
     }
 
     private InputStream getInputStream(String data) {
@@ -550,7 +526,21 @@
     }
 
     private void startTracker(BrightnessTracker tracker) {
-        tracker.start();
+        startTracker(tracker, DEFAULT_INITIAL_BRIGHTNESS);
+    }
+
+    private void startTracker(BrightnessTracker tracker, float initialBrightness) {
+        tracker.start(initialBrightness);
+        mInjector.waitForHandler();
+    }
+
+    private void notifyBrightnessChanged(BrightnessTracker tracker, float brightness) {
+        notifyBrightnessChanged(tracker, brightness, true /*userInitiated*/);
+    }
+
+    private void notifyBrightnessChanged(BrightnessTracker tracker, float brightness,
+            boolean userInitiated) {
+        tracker.notifyBrightnessChanged(brightness, userInitiated);
         mInjector.waitForHandler();
     }
 
@@ -578,7 +568,6 @@
 
     private class TestInjector extends BrightnessTracker.Injector {
         SensorEventListener mSensorListener;
-        ContentObserver mSettingsObserver;
         BroadcastReceiver mBroadcastReceiver;
         Map<String, Integer> mSystemIntSettings = new HashMap<>();
         Map<String, Integer> mSecureIntSettings = new HashMap<>();
@@ -610,18 +599,6 @@
         }
 
         @Override
-        public void registerBrightnessObserver(ContentResolver resolver,
-                ContentObserver settingsObserver) {
-            mSettingsObserver = settingsObserver;
-        }
-
-        @Override
-        public void unregisterBrightnessObserver(Context context,
-                ContentObserver settingsObserver) {
-            mSettingsObserver = null;
-        }
-
-        @Override
         public void registerReceiver(Context context,
                 BroadcastReceiver shutdownReceiver, IntentFilter shutdownFilter) {
             mBroadcastReceiver = shutdownReceiver;
@@ -647,23 +624,6 @@
         }
 
         @Override
-        public int getSystemIntForUser(ContentResolver resolver, String setting, int defaultValue,
-                int userId) {
-            Integer value = mSystemIntSettings.get(setting);
-            if (value == null) {
-                return defaultValue;
-            } else {
-                return value;
-            }
-        }
-
-        @Override
-        public void putSystemIntForUser(ContentResolver resolver, String setting, int value,
-                int userId) {
-            mSystemIntSettings.put(setting, value);
-        }
-
-        @Override
         public int getSecureIntForUser(ContentResolver resolver, String setting, int defaultValue,
                 int userId) {
             Integer value = mSecureIntSettings.get(setting);
diff --git a/services/tests/servicestests/src/com/android/server/locksettings/recoverablekeystore/KeySyncUtilsTest.java b/services/tests/servicestests/src/com/android/server/locksettings/recoverablekeystore/KeySyncUtilsTest.java
index ba40c67..114da1a 100644
--- a/services/tests/servicestests/src/com/android/server/locksettings/recoverablekeystore/KeySyncUtilsTest.java
+++ b/services/tests/servicestests/src/com/android/server/locksettings/recoverablekeystore/KeySyncUtilsTest.java
@@ -386,23 +386,7 @@
     }
 
     @Test
-    public void packVaultParams_encodesMaxAttemptsAsThirdParam() throws Exception {
-        int maxAttempts = 10;
-
-        byte[] packedForm = KeySyncUtils.packVaultParams(
-                SecureBox.genKeyPair().getPublic(),
-                /*counterId=*/ 1001L,
-                maxAttempts,
-                /*deviceId=*/ 1L);
-
-        ByteBuffer byteBuffer = ByteBuffer.wrap(packedForm)
-                .order(ByteOrder.LITTLE_ENDIAN);
-        byteBuffer.position(PUBLIC_KEY_LENGTH_BYTES + Long.BYTES);
-        assertEquals(maxAttempts, byteBuffer.getInt());
-    }
-
-    @Test
-    public void packVaultParams_encodesDeviceIdAsLastParam() throws Exception {
+    public void packVaultParams_encodesDeviceIdAsThirdParam() throws Exception {
         long deviceId = 102942158152L;
 
         byte[] packedForm = KeySyncUtils.packVaultParams(
@@ -413,10 +397,27 @@
 
         ByteBuffer byteBuffer = ByteBuffer.wrap(packedForm)
                 .order(ByteOrder.LITTLE_ENDIAN);
-        byteBuffer.position(PUBLIC_KEY_LENGTH_BYTES + Long.BYTES + Integer.BYTES);
+        byteBuffer.position(PUBLIC_KEY_LENGTH_BYTES + Long.BYTES);
         assertEquals(deviceId, byteBuffer.getLong());
     }
 
+    @Test
+    public void packVaultParams_encodesMaxAttemptsAsLastParam() throws Exception {
+        int maxAttempts = 10;
+
+        byte[] packedForm = KeySyncUtils.packVaultParams(
+                SecureBox.genKeyPair().getPublic(),
+                /*counterId=*/ 1001L,
+                maxAttempts,
+                /*deviceId=*/ 1L);
+
+        ByteBuffer byteBuffer = ByteBuffer.wrap(packedForm)
+                .order(ByteOrder.LITTLE_ENDIAN);
+        byteBuffer.position(PUBLIC_KEY_LENGTH_BYTES + 2 * Long.BYTES);
+        assertEquals(maxAttempts, byteBuffer.getInt());
+    }
+
+
     private static byte[] randomBytes(int n) {
         byte[] bytes = new byte[n];
         new Random().nextBytes(bytes);
diff --git a/services/tests/servicestests/src/com/android/server/testutils/TestHandler.java b/services/tests/servicestests/src/com/android/server/testutils/TestHandler.java
index 2d4bc0f..029d9f1 100644
--- a/services/tests/servicestests/src/com/android/server/testutils/TestHandler.java
+++ b/services/tests/servicestests/src/com/android/server/testutils/TestHandler.java
@@ -104,6 +104,15 @@
         return new PriorityQueue<>(mMessages);
     }
 
+    /**
+     * Optionally-overridable to allow deciphering message types
+     *
+     * @see android.util.DebugUtils#valueToString - a handy utility to use when overriding this
+     */
+    protected String messageToString(Message message) {
+        return message.toString();
+    }
+
     private void dispatch(MsgInfo msg) {
         int msgId = msg.message.what;
 
@@ -148,7 +157,7 @@
         @Override
         public String toString() {
             return "MsgInfo{" +
-                    "message=" + message +
+                    "message=" + messageToString(message) +
                     ", sendTime=" + sendTime +
                     '}';
         }
diff --git a/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java b/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
index 96ff461..6e57f47 100644
--- a/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
+++ b/services/tests/servicestests/src/com/android/server/wm/SurfaceAnimatorTest.java
@@ -45,6 +45,7 @@
 import org.mockito.MockitoAnnotations;
 
 import java.util.ArrayList;
+import java.util.concurrent.CountDownLatch;
 
 /**
  * Test class for {@link SurfaceAnimatorTest}.
@@ -82,6 +83,7 @@
         verify(mSpec).startAnimation(any(), any(), callbackCaptor.capture());
 
         callbackCaptor.getValue().onAnimationFinished(mSpec);
+        waitUntilPrepareSurfaces();
         assertNotAnimating(mAnimatable);
         assertTrue(mAnimatable.mFinishedCallbackCalled);
         assertTrue(mAnimatable.mPendingDestroySurfaces.contains(mAnimatable.mLeash));
@@ -104,11 +106,13 @@
 
         // First animation was finished, but this shouldn't cancel the second animation
         callbackCaptor.getValue().onAnimationFinished(mSpec);
+        waitUntilPrepareSurfaces();
         assertTrue(mAnimatable.mSurfaceAnimator.isAnimating());
 
         // Second animation was finished
         verify(mSpec2).startAnimation(any(), any(), callbackCaptor.capture());
         callbackCaptor.getValue().onAnimationFinished(mSpec2);
+        waitUntilPrepareSurfaces();
         assertNotAnimating(mAnimatable);
         assertTrue(mAnimatable.mFinishedCallbackCalled);
     }
@@ -160,6 +164,7 @@
         assertEquals(leash, mAnimatable2.mSurfaceAnimator.mLeash);
         assertFalse(mAnimatable.mPendingDestroySurfaces.contains(leash));
         callbackCaptor.getValue().onAnimationFinished(mSpec);
+        waitUntilPrepareSurfaces();
         assertNotAnimating(mAnimatable2);
         assertTrue(mAnimatable2.mFinishedCallbackCalled);
         assertTrue(mAnimatable2.mPendingDestroySurfaces.contains(leash));
@@ -175,6 +180,14 @@
         assertNull(animatable.mSurfaceAnimator.getAnimation());
     }
 
+    private void waitUntilPrepareSurfaces() throws Exception {
+        final CountDownLatch latch = new CountDownLatch(1);
+        synchronized (sWm.mWindowMap) {
+            sWm.mAnimator.addAfterPrepareSurfacesRunnable(latch::countDown);
+        }
+        latch.await();
+    }
+
     private class MyAnimatable implements Animatable {
 
         final SurfaceControl mParent;
@@ -233,6 +246,11 @@
         }
 
         @Override
+        public SurfaceControl getAnimationLeashParent() {
+            return mParent;
+        }
+
+        @Override
         public SurfaceControl getSurfaceControl() {
             return mSurface;
         }
diff --git a/services/tests/servicestests/src/com/android/server/wm/WindowTestsBase.java b/services/tests/servicestests/src/com/android/server/wm/WindowTestsBase.java
index c699a94..ff840f3 100644
--- a/services/tests/servicestests/src/com/android/server/wm/WindowTestsBase.java
+++ b/services/tests/servicestests/src/com/android/server/wm/WindowTestsBase.java
@@ -103,6 +103,7 @@
 
         context.getDisplay().getDisplayInfo(mDisplayInfo);
         mDisplayContent = createNewDisplay();
+        sWm.mAnimator.mInitialized = true;
         sWm.mDisplayEnabled = true;
         sWm.mDisplayReady = true;
 
diff --git a/telephony/java/android/telephony/Telephony.java b/telephony/java/android/provider/Telephony.java
similarity index 100%
rename from telephony/java/android/telephony/Telephony.java
rename to telephony/java/android/provider/Telephony.java
diff --git a/tools/sdkparcelables/Android.bp b/tools/sdkparcelables/Android.bp
new file mode 100644
index 0000000..00fb8aa
--- /dev/null
+++ b/tools/sdkparcelables/Android.bp
@@ -0,0 +1,22 @@
+java_binary_host {
+    name: "sdkparcelables",
+    manifest: "manifest.txt",
+    srcs: [
+        "src/**/*.kt",
+    ],
+    static_libs: [
+        "asm-6.0",
+    ],
+}
+
+java_library_host {
+    name: "sdkparcelables_test",
+    manifest: "manifest.txt",
+    srcs: [
+        "tests/**/*.kt",
+    ],
+    static_libs: [
+        "sdkparcelables",
+        "junit",
+    ],
+}
diff --git a/tools/sdkparcelables/manifest.txt b/tools/sdkparcelables/manifest.txt
new file mode 100644
index 0000000..cd5420c
--- /dev/null
+++ b/tools/sdkparcelables/manifest.txt
@@ -0,0 +1 @@
+Main-class: com.android.sdkparcelables.MainKt
diff --git a/tools/sdkparcelables/src/com/android/sdkparcelables/AncestorCollector.kt b/tools/sdkparcelables/src/com/android/sdkparcelables/AncestorCollector.kt
new file mode 100644
index 0000000..f278aec
--- /dev/null
+++ b/tools/sdkparcelables/src/com/android/sdkparcelables/AncestorCollector.kt
@@ -0,0 +1,28 @@
+package com.android.sdkparcelables
+
+import org.objectweb.asm.ClassVisitor
+import java.util.*
+
+data class Ancestors(val superName: String?, val interfaces: List<String>?)
+
+/** A class that implements an ASM ClassVisitor that collects super class and
+ * implemented interfaces for each class that it visits.
+ */
+class AncestorCollector(api: Int, dest: ClassVisitor?) : ClassVisitor(api, dest) {
+    private val _ancestors = LinkedHashMap<String, Ancestors>()
+
+    val ancestors: Map<String, Ancestors>
+        get() = _ancestors
+
+    override fun visit(version: Int, access: Int, name: String?, signature: String?,
+                       superName: String?, interfaces: Array<out String>?) {
+        name!!
+
+        val old = _ancestors.put(name, Ancestors(superName, interfaces?.toList()))
+        if (old != null) {
+            throw RuntimeException("class $name already found")
+        }
+
+        super.visit(version, access, name, signature, superName, interfaces)
+    }
+}
\ No newline at end of file
diff --git a/tools/sdkparcelables/src/com/android/sdkparcelables/Main.kt b/tools/sdkparcelables/src/com/android/sdkparcelables/Main.kt
new file mode 100644
index 0000000..3e9d92c
--- /dev/null
+++ b/tools/sdkparcelables/src/com/android/sdkparcelables/Main.kt
@@ -0,0 +1,56 @@
+package com.android.sdkparcelables
+
+import org.objectweb.asm.ClassReader
+import org.objectweb.asm.Opcodes
+import java.io.File
+import java.io.IOException
+import java.util.zip.ZipFile
+
+fun main(args: Array<String>) {
+    if (args.size != 2) {
+        usage()
+    }
+
+    val zipFileName = args[0]
+    val aidlFileName = args[1]
+
+    val zipFile: ZipFile
+
+    try {
+        zipFile = ZipFile(zipFileName)
+    } catch (e: IOException) {
+        System.err.println("error reading input jar: ${e.message}")
+        kotlin.system.exitProcess(2)
+    }
+
+    val ancestorCollector = AncestorCollector(Opcodes.ASM6, null)
+
+    for (entry in zipFile.entries()) {
+        if (entry.name.endsWith(".class")) {
+            val reader = ClassReader(zipFile.getInputStream(entry))
+            reader.accept(ancestorCollector,
+                    ClassReader.SKIP_CODE or ClassReader.SKIP_DEBUG or ClassReader.SKIP_FRAMES)
+        }
+    }
+
+    val parcelables = ParcelableDetector.ancestorsToParcelables(ancestorCollector.ancestors)
+
+    try {
+        val outFile = File(aidlFileName)
+        val outWriter = outFile.bufferedWriter()
+        for (parcelable in parcelables) {
+            outWriter.write("parcelable ")
+            outWriter.write(parcelable.replace('/', '.').replace('$', '.'))
+            outWriter.write(";\n")
+        }
+        outWriter.flush()
+    } catch (e: IOException) {
+        System.err.println("error writing output aidl: ${e.message}")
+        kotlin.system.exitProcess(2)
+    }
+}
+
+fun usage() {
+    System.err.println("Usage: <input jar> <output aidl>")
+    kotlin.system.exitProcess(1)
+}
\ No newline at end of file
diff --git a/tools/sdkparcelables/src/com/android/sdkparcelables/ParcelableDetector.kt b/tools/sdkparcelables/src/com/android/sdkparcelables/ParcelableDetector.kt
new file mode 100644
index 0000000..620f798
--- /dev/null
+++ b/tools/sdkparcelables/src/com/android/sdkparcelables/ParcelableDetector.kt
@@ -0,0 +1,52 @@
+package com.android.sdkparcelables
+
+/** A class that uses an ancestor map to find all classes that
+ * implement android.os.Parcelable, including indirectly through
+ * super classes or super interfaces.
+ */
+class ParcelableDetector {
+    companion object {
+        fun ancestorsToParcelables(ancestors: Map<String, Ancestors>): List<String> {
+            val impl = Impl(ancestors)
+            impl.build()
+            return impl.parcelables
+        }
+    }
+
+    private class Impl(val ancestors: Map<String, Ancestors>) {
+        val isParcelableCache = HashMap<String, Boolean>()
+        val parcelables = ArrayList<String>()
+
+        fun build() {
+            val classList = ancestors.keys
+            classList.filterTo(parcelables, this::isParcelable)
+            parcelables.sort()
+        }
+
+        private fun isParcelable(c: String?): Boolean {
+            if (c == null) {
+                return false
+            }
+
+            if (c == "android/os/Parcelable") {
+                return true
+            }
+
+            val old = isParcelableCache[c]
+            if (old != null) {
+                return old
+            }
+
+            val cAncestors = ancestors[c] ?:
+                    throw RuntimeException("class $c missing ancestor information")
+
+            val seq = (cAncestors.interfaces?.asSequence() ?: emptySequence()) +
+                    cAncestors.superName
+
+            val ancestorIsParcelable = seq.any(this::isParcelable)
+
+            isParcelableCache[c] = ancestorIsParcelable
+            return ancestorIsParcelable
+        }
+    }
+}
diff --git a/tools/sdkparcelables/tests/com/android/sdkparcelables/ParcelableDetectorTest.kt b/tools/sdkparcelables/tests/com/android/sdkparcelables/ParcelableDetectorTest.kt
new file mode 100644
index 0000000..edfc825
--- /dev/null
+++ b/tools/sdkparcelables/tests/com/android/sdkparcelables/ParcelableDetectorTest.kt
@@ -0,0 +1,57 @@
+package com.android.sdkparcelables
+
+import junit.framework.TestCase.assertEquals
+import org.junit.Test
+
+class ParcelableDetectorTest {
+    @Test
+    fun `detect implements`() {
+        val ancestorMap = mapOf(
+                testAncestors("android/test/Parcelable",null, "android/os/Parcelable"),
+                testAncestors("android/os/Parcelable", null))
+
+        val parcelables = ParcelableDetector.ancestorsToParcelables(ancestorMap)
+
+        assertEquals(parcelables, listOf("android/os/Parcelable", "android/test/Parcelable"))
+    }
+
+    @Test
+    fun `detect implements in reverse order`() {
+        val ancestorMap = mapOf(
+                testAncestors("android/os/Parcelable", null),
+                testAncestors("android/test/Parcelable",null, "android/os/Parcelable"))
+
+        val parcelables = ParcelableDetector.ancestorsToParcelables(ancestorMap)
+
+        assertEquals(parcelables, listOf("android/os/Parcelable", "android/test/Parcelable"))
+    }
+
+    @Test
+    fun `detect super implements`() {
+        val ancestorMap = mapOf(
+                testAncestors("android/test/SuperParcelable",null, "android/os/Parcelable"),
+                testAncestors("android/test/Parcelable","android/test/SuperParcelable"),
+                testAncestors("android/os/Parcelable", null))
+
+        val parcelables = ParcelableDetector.ancestorsToParcelables(ancestorMap)
+
+        assertEquals(parcelables, listOf("android/os/Parcelable", "android/test/Parcelable", "android/test/SuperParcelable"))
+    }
+
+    @Test
+    fun `detect super interface`() {
+        val ancestorMap = mapOf(
+                testAncestors("android/test/IParcelable",null, "android/os/Parcelable"),
+                testAncestors("android/test/Parcelable",null, "android/test/IParcelable"),
+                testAncestors("android/os/Parcelable", null))
+
+        val parcelables = ParcelableDetector.ancestorsToParcelables(ancestorMap)
+
+        assertEquals(parcelables, listOf("android/os/Parcelable", "android/test/IParcelable", "android/test/Parcelable"))
+    }
+
+}
+
+private fun testAncestors(name: String, superName: String?, vararg interfaces: String): Pair<String, Ancestors> {
+    return Pair(name, Ancestors(superName, interfaces.toList()))
+}