Merge "Using Message.obtain() to decrease number of Messages allocated." into nyc-dev
diff --git a/api/current.txt b/api/current.txt
index 44df333..fec8b06 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2666,6 +2666,7 @@
     field public static final int GLOBAL_ACTION_POWER_DIALOG = 6; // 0x6
     field public static final int GLOBAL_ACTION_QUICK_SETTINGS = 5; // 0x5
     field public static final int GLOBAL_ACTION_RECENTS = 3; // 0x3
+    field public static final int GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN = 7; // 0x7
     field public static final java.lang.String SERVICE_INTERFACE = "android.accessibilityservice.AccessibilityService";
     field public static final java.lang.String SERVICE_META_DATA = "android.accessibilityservice";
   }
@@ -19172,7 +19173,6 @@
     method public short getLeapSecond();
     method public long getTimeInNs();
     method public double getTimeUncertaintyInNs();
-    method public byte getType();
     method public boolean hasBiasInNs();
     method public boolean hasBiasUncertaintyInNs();
     method public boolean hasDriftInNsPerSec();
@@ -19198,17 +19198,10 @@
     method public void setLeapSecond(short);
     method public void setTimeInNs(long);
     method public void setTimeUncertaintyInNs(double);
-    method public void setType(byte);
     method public void writeToParcel(android.os.Parcel, int);
-    field public static final byte CLOCK_TYPE_GPS_TIME = 2; // 0x2
-    field public static final byte CLOCK_TYPE_LOCAL_HW_TIME = 1; // 0x1
-    field public static final byte CLOCK_TYPE_UNKNOWN = 0; // 0x0
     field public static final android.os.Parcelable.Creator<android.location.GnssClock> CREATOR;
   }
 
-  public static abstract class GnssClock.GnssClockType implements java.lang.annotation.Annotation {
-  }
-
   public final class GnssMeasurement implements android.os.Parcelable {
     method public int describeContents();
     method public double getAccumulatedDeltaRangeInMeters();
@@ -19774,6 +19767,7 @@
     field public static final int ENCODING_PCM_16BIT = 2; // 0x2
     field public static final int ENCODING_PCM_8BIT = 3; // 0x3
     field public static final int ENCODING_PCM_FLOAT = 4; // 0x4
+    field public static final int SAMPLE_RATE_UNSPECIFIED = 0; // 0x0
   }
 
   public static class AudioFormat.Builder {
@@ -44085,6 +44079,7 @@
     field public static final int TYPE_ACCESSIBILITY_OVERLAY = 4; // 0x4
     field public static final int TYPE_APPLICATION = 1; // 0x1
     field public static final int TYPE_INPUT_METHOD = 2; // 0x2
+    field public static final int TYPE_SPLIT_SCREEN_DIVIDER = 5; // 0x5
     field public static final int TYPE_SYSTEM = 3; // 0x3
   }
 
diff --git a/api/system-current.txt b/api/system-current.txt
index 79d0cd7..b088f83 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -2768,6 +2768,7 @@
     field public static final int GLOBAL_ACTION_POWER_DIALOG = 6; // 0x6
     field public static final int GLOBAL_ACTION_QUICK_SETTINGS = 5; // 0x5
     field public static final int GLOBAL_ACTION_RECENTS = 3; // 0x3
+    field public static final int GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN = 7; // 0x7
     field public static final java.lang.String SERVICE_INTERFACE = "android.accessibilityservice.AccessibilityService";
     field public static final java.lang.String SERVICE_META_DATA = "android.accessibilityservice";
   }
@@ -20361,7 +20362,6 @@
     method public short getLeapSecond();
     method public long getTimeInNs();
     method public double getTimeUncertaintyInNs();
-    method public byte getType();
     method public boolean hasBiasInNs();
     method public boolean hasBiasUncertaintyInNs();
     method public boolean hasDriftInNsPerSec();
@@ -20387,17 +20387,10 @@
     method public void setLeapSecond(short);
     method public void setTimeInNs(long);
     method public void setTimeUncertaintyInNs(double);
-    method public void setType(byte);
     method public void writeToParcel(android.os.Parcel, int);
-    field public static final byte CLOCK_TYPE_GPS_TIME = 2; // 0x2
-    field public static final byte CLOCK_TYPE_LOCAL_HW_TIME = 1; // 0x1
-    field public static final byte CLOCK_TYPE_UNKNOWN = 0; // 0x0
     field public static final android.os.Parcelable.Creator<android.location.GnssClock> CREATOR;
   }
 
-  public static abstract class GnssClock.GnssClockType implements java.lang.annotation.Annotation {
-  }
-
   public final class GnssMeasurement implements android.os.Parcelable {
     method public int describeContents();
     method public double getAccumulatedDeltaRangeInMeters();
@@ -21270,6 +21263,7 @@
     field public static final int ENCODING_PCM_16BIT = 2; // 0x2
     field public static final int ENCODING_PCM_8BIT = 3; // 0x3
     field public static final int ENCODING_PCM_FLOAT = 4; // 0x4
+    field public static final int SAMPLE_RATE_UNSPECIFIED = 0; // 0x0
   }
 
   public static class AudioFormat.Builder {
@@ -46869,6 +46863,7 @@
     field public static final int TYPE_ACCESSIBILITY_OVERLAY = 4; // 0x4
     field public static final int TYPE_APPLICATION = 1; // 0x1
     field public static final int TYPE_INPUT_METHOD = 2; // 0x2
+    field public static final int TYPE_SPLIT_SCREEN_DIVIDER = 5; // 0x5
     field public static final int TYPE_SYSTEM = 3; // 0x3
   }
 
diff --git a/api/test-current.txt b/api/test-current.txt
index 4b62e28..006dec4 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -2666,6 +2666,7 @@
     field public static final int GLOBAL_ACTION_POWER_DIALOG = 6; // 0x6
     field public static final int GLOBAL_ACTION_QUICK_SETTINGS = 5; // 0x5
     field public static final int GLOBAL_ACTION_RECENTS = 3; // 0x3
+    field public static final int GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN = 7; // 0x7
     field public static final java.lang.String SERVICE_INTERFACE = "android.accessibilityservice.AccessibilityService";
     field public static final java.lang.String SERVICE_META_DATA = "android.accessibilityservice";
   }
@@ -19180,7 +19181,6 @@
     method public short getLeapSecond();
     method public long getTimeInNs();
     method public double getTimeUncertaintyInNs();
-    method public byte getType();
     method public boolean hasBiasInNs();
     method public boolean hasBiasUncertaintyInNs();
     method public boolean hasDriftInNsPerSec();
@@ -19206,17 +19206,10 @@
     method public void setLeapSecond(short);
     method public void setTimeInNs(long);
     method public void setTimeUncertaintyInNs(double);
-    method public void setType(byte);
     method public void writeToParcel(android.os.Parcel, int);
-    field public static final byte CLOCK_TYPE_GPS_TIME = 2; // 0x2
-    field public static final byte CLOCK_TYPE_LOCAL_HW_TIME = 1; // 0x1
-    field public static final byte CLOCK_TYPE_UNKNOWN = 0; // 0x0
     field public static final android.os.Parcelable.Creator<android.location.GnssClock> CREATOR;
   }
 
-  public static abstract class GnssClock.GnssClockType implements java.lang.annotation.Annotation {
-  }
-
   public final class GnssMeasurement implements android.os.Parcelable {
     method public int describeContents();
     method public double getAccumulatedDeltaRangeInMeters();
@@ -19783,6 +19776,7 @@
     field public static final int ENCODING_PCM_16BIT = 2; // 0x2
     field public static final int ENCODING_PCM_8BIT = 3; // 0x3
     field public static final int ENCODING_PCM_FLOAT = 4; // 0x4
+    field public static final int SAMPLE_RATE_UNSPECIFIED = 0; // 0x0
   }
 
   public static class AudioFormat.Builder {
@@ -44102,6 +44096,7 @@
     field public static final int TYPE_ACCESSIBILITY_OVERLAY = 4; // 0x4
     field public static final int TYPE_APPLICATION = 1; // 0x1
     field public static final int TYPE_INPUT_METHOD = 2; // 0x2
+    field public static final int TYPE_SPLIT_SCREEN_DIVIDER = 5; // 0x5
     field public static final int TYPE_SYSTEM = 3; // 0x3
   }
 
diff --git a/cmds/pm/src/com/android/commands/pm/Pm.java b/cmds/pm/src/com/android/commands/pm/Pm.java
index 24449d4..4025553 100644
--- a/cmds/pm/src/com/android/commands/pm/Pm.java
+++ b/cmds/pm/src/com/android/commands/pm/Pm.java
@@ -1490,7 +1490,7 @@
         System.err.println("    -i: specify the installer package name");
         System.err.println("    -s: install application on sdcard");
         System.err.println("    -f: install application on internal flash");
-        System.err.println("    -d: allow version code downgrade");
+        System.err.println("    -d: allow version code downgrade (debuggable packages only)");
         System.err.println("    -p: partial application install");
         System.err.println("    -g: grant all runtime permissions");
         System.err.println("    -S: size in bytes of entire session");
diff --git a/core/java/android/accessibilityservice/AccessibilityService.java b/core/java/android/accessibilityservice/AccessibilityService.java
index 4bc6b97..fb5f5b9 100644
--- a/core/java/android/accessibilityservice/AccessibilityService.java
+++ b/core/java/android/accessibilityservice/AccessibilityService.java
@@ -334,7 +334,7 @@
     public static final int GLOBAL_ACTION_HOME = 2;
 
     /**
-     * Action to open the recent apps.
+     * Action to toggle showing the overview of recent apps
      */
     public static final int GLOBAL_ACTION_RECENTS = 3;
 
@@ -353,6 +353,11 @@
      */
     public static final int GLOBAL_ACTION_POWER_DIALOG = 6;
 
+    /**
+     * Action to toggle docking the current app's window
+     */
+    public static final int GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN = 7;
+
     private static final String LOG_TAG = "AccessibilityService";
 
     /**
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index eaff1ac..cb45deb 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -58,6 +58,7 @@
 import android.util.AndroidException;
 import android.util.ArrayMap;
 import android.util.ArraySet;
+import android.util.LocaleList;
 import android.util.Log;
 
 import com.android.internal.util.ArrayUtils;
@@ -2071,6 +2072,8 @@
             if (outConfig.fontScale < 0) {
                 outConfig.fontScale = 1;
             }
+            outConfig.setLocales(LocaleList.forLanguageTags(
+                    Settings.System.getStringForUser(cr, SYSTEM_LOCALES, userHandle)));
         }
 
         /**
@@ -2079,6 +2082,9 @@
          */
         public static void clearConfiguration(Configuration inoutConfig) {
             inoutConfig.fontScale = 0;
+            if (!inoutConfig.userSetLocale) {
+                inoutConfig.setLocales(LocaleList.getEmptyLocaleList());
+            }
         }
 
         /**
@@ -2096,12 +2102,15 @@
         /** @hide */
         public static boolean putConfigurationForUser(ContentResolver cr, Configuration config,
                 int userHandle) {
-            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle);
+            return Settings.System.putFloatForUser(cr, FONT_SCALE, config.fontScale, userHandle) &&
+                    Settings.System.putStringForUser(
+                            cr, SYSTEM_LOCALES, config.getLocales().toLanguageTags(), userHandle);
         }
 
         /** @hide */
         public static boolean hasInterestingConfigurationChanges(int changes) {
-            return (changes&ActivityInfo.CONFIG_FONT_SCALE) != 0;
+            return (changes & ActivityInfo.CONFIG_FONT_SCALE) != 0 ||
+                    (changes & ActivityInfo.CONFIG_LOCALE) != 0;
         }
 
         /** @deprecated - Do not use */
@@ -2480,6 +2489,18 @@
         };
 
         /**
+         * The serialized system locale value.
+         *
+         * Do not use this value directory.
+         * To get system locale, use {@link android.util.LocaleList#getDefault} instead.
+         * To update system locale, use {@link com.android.internal.app.LocalePicker#updateLocales}
+         * instead.
+         * @hide
+         */
+        public static final String SYSTEM_LOCALES = "system_locales";
+
+
+        /**
          * Name of an application package to be debugged.
          *
          * @deprecated Use {@link Global#DEBUG_APP} instead
diff --git a/core/java/android/text/method/BaseKeyListener.java b/core/java/android/text/method/BaseKeyListener.java
index 367c9fb..e79dfca 100644
--- a/core/java/android/text/method/BaseKeyListener.java
+++ b/core/java/android/text/method/BaseKeyListener.java
@@ -437,6 +437,7 @@
 
         if (handled) {
             adjustMetaAfterKeypress(content);
+            return true;
         }
 
         return super.onKeyDown(view, content, keyCode, event);
@@ -470,4 +471,3 @@
         return true;
     }
 }
-
diff --git a/core/java/android/view/accessibility/AccessibilityWindowInfo.java b/core/java/android/view/accessibility/AccessibilityWindowInfo.java
index a75e8a7..ad78b68 100644
--- a/core/java/android/view/accessibility/AccessibilityWindowInfo.java
+++ b/core/java/android/view/accessibility/AccessibilityWindowInfo.java
@@ -64,6 +64,12 @@
      */
     public static final int TYPE_ACCESSIBILITY_OVERLAY = 4;
 
+    /**
+     * Window type: A system window used to divide the screen in split-screen mode.
+     * This type of window is present only in split-screen mode.
+     */
+    public static final int TYPE_SPLIT_SCREEN_DIVIDER = 5;
+
     private static final int UNDEFINED = -1;
 
     private static final int BOOLEAN_PROPERTY_ACTIVE = 1 << 0;
@@ -551,6 +557,9 @@
             case TYPE_ACCESSIBILITY_OVERLAY: {
                 return "TYPE_ACCESSIBILITY_OVERLAY";
             }
+            case TYPE_SPLIT_SCREEN_DIVIDER: {
+                return "TYPE_SPLIT_SCREEN_DIVIDER";
+            }
             default:
                 return "<UNKNOWN>";
         }
diff --git a/core/java/android/widget/PopupWindow.java b/core/java/android/widget/PopupWindow.java
index 4c81d1a..54b3932 100644
--- a/core/java/android/widget/PopupWindow.java
+++ b/core/java/android/widget/PopupWindow.java
@@ -1632,7 +1632,6 @@
 
         final PopupDecorView decorView = mDecorView;
         final View contentView = mContentView;
-        final OnDismissListener dismissListener = mOnDismissListener;
 
         final ViewGroup contentHolder;
         final ViewParent contentParent = contentView.getParent();
@@ -1676,16 +1675,19 @@
                     new TransitionListenerAdapter() {
                         @Override
                         public void onTransitionEnd(Transition transition) {
-                            dismissImmediate(decorView, contentHolder,
-                                    contentView, dismissListener);
+                            dismissImmediate(decorView, contentHolder, contentView);
                         }
                     });
         } else {
-            dismissImmediate(decorView, contentHolder, contentView, dismissListener);
+            dismissImmediate(decorView, contentHolder, contentView);
         }
 
         // Clears the anchor view.
         unregisterForViewTreeChanges();
+
+        if (mOnDismissListener != null) {
+            mOnDismissListener.onDismiss();
+        }
     }
 
     /**
@@ -1727,8 +1729,7 @@
      * Removes the popup from the window manager and tears down the supporting
      * view hierarchy, if necessary.
      */
-    private void dismissImmediate(View decorView, ViewGroup contentHolder,
-            View contentView, OnDismissListener listener) {
+    private void dismissImmediate(View decorView, ViewGroup contentHolder, View contentView) {
         // If this method gets called and the decor view doesn't have a parent,
         // then it was either never added or was already removed. That should
         // never happen, but it's worth checking to avoid potential crashes.
@@ -1745,10 +1746,6 @@
         mDecorView = null;
         mBackgroundView = null;
         mIsTransitioningToDismiss = false;
-
-        if (mOnDismissListener != null) {
-            mOnDismissListener.onDismiss();
-        }
     }
 
     /**
diff --git a/core/java/com/android/internal/app/LocalePicker.java b/core/java/com/android/internal/app/LocalePicker.java
index 6a365e0..b1b019c 100644
--- a/core/java/com/android/internal/app/LocalePicker.java
+++ b/core/java/com/android/internal/app/LocalePicker.java
@@ -275,7 +275,7 @@
             config.setLocales(locales);
             config.userSetLocale = true;
 
-            am.updateConfiguration(config);
+            am.updatePersistentConfiguration(config);
             // Trigger the dirty bit for the Settings Provider.
             BackupManager.dataChanged("com.android.providers.settings");
         } catch (RemoteException e) {
diff --git a/core/java/com/android/internal/statusbar/IStatusBar.aidl b/core/java/com/android/internal/statusbar/IStatusBar.aidl
index 08d4fba..64c5b8d 100644
--- a/core/java/com/android/internal/statusbar/IStatusBar.aidl
+++ b/core/java/com/android/internal/statusbar/IStatusBar.aidl
@@ -60,6 +60,7 @@
     void showRecentApps(boolean triggeredFromAltTab);
     void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey);
     void toggleRecentApps();
+    void toggleSplitScreen();
     void preloadRecentApps();
     void cancelPreloadRecentApps();
     void showScreenPinningRequest();
diff --git a/core/java/com/android/internal/util/WakeupMessage.java b/core/java/com/android/internal/util/WakeupMessage.java
index 77859b8..451078b 100644
--- a/core/java/com/android/internal/util/WakeupMessage.java
+++ b/core/java/com/android/internal/util/WakeupMessage.java
@@ -21,7 +21,7 @@
 import android.os.Handler;
 import android.os.Message;
 
- /**
+/**
  * An AlarmListener that sends the specified message to a Handler and keeps the system awake until
  * the message is processed.
  *
@@ -33,19 +33,17 @@
  * the message, but does not guarantee that the system will be awake until the target object has
  * processed it. This is because as soon as the onAlarmListener sends the message and returns, the
  * AlarmManager releases its wakelock and the system is free to go to sleep again.
- *
  */
 public class WakeupMessage implements AlarmManager.OnAlarmListener {
-    private static AlarmManager sAlarmManager;
+    private final AlarmManager mAlarmManager;
     private final Handler mHandler;
     private final String mCmdName;
     private final int mCmd, mArg1, mArg2;
+    private boolean mScheduled;
 
     public WakeupMessage(Context context, Handler handler,
             String cmdName, int cmd, int arg1, int arg2) {
-        if (sAlarmManager == null) {
-            sAlarmManager = context.getSystemService(AlarmManager.class);
-        }
+        mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
         mHandler = handler;
         mCmdName = cmdName;
         mCmd = cmd;
@@ -61,19 +59,43 @@
         this(context, handler, cmdName, cmd, 0, 0);
     }
 
-    public void schedule(long when) {
-        sAlarmManager.setExact(
+    /**
+     * Schedule the message to be delivered at the time in milliseconds of the
+     * {@link android.os.SystemClock#elapsedRealtime SystemClock.elapsedRealtime()} clock and wakeup
+     * the device when it goes off. If schedule is called multiple times without the message being
+     * dispatched then the alarm is rescheduled to the new time.
+     */
+    public synchronized void schedule(long when) {
+        mAlarmManager.setExact(
                 AlarmManager.ELAPSED_REALTIME_WAKEUP, when, mCmdName, this, mHandler);
+        mScheduled = true;
     }
 
-    public void cancel() {
-        sAlarmManager.cancel(this);
+    /**
+     * Cancel all pending messages. This includes alarms that may have been fired, but have not been
+     * run on the handler yet.
+     */
+    public synchronized void cancel() {
+        if (mScheduled) {
+            mAlarmManager.cancel(this);
+            mScheduled = false;
+        }
     }
 
     @Override
     public void onAlarm() {
-        Message msg = mHandler.obtainMessage(mCmd, mArg1, mArg2);
-        mHandler.handleMessage(msg);
-        msg.recycle();
+        // Once this method is called the alarm has already been fired and removed from
+        // AlarmManager (it is still partially tracked, but only for statistics). The alarm can now
+        // be marked as unscheduled so that it can be rescheduled in the message handler.
+        final boolean stillScheduled;
+        synchronized (this) {
+            stillScheduled = mScheduled;
+            mScheduled = false;
+        }
+        if (stillScheduled) {
+            Message msg = mHandler.obtainMessage(mCmd, mArg1, mArg2);
+            mHandler.handleMessage(msg);
+            msg.recycle();
+        }
     }
 }
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index 8b686b7..4be36594 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -7,7 +7,7 @@
 LOCAL_CFLAGS += -Wno-unused-parameter
 LOCAL_CFLAGS += -Wno-non-virtual-dtor
 LOCAL_CFLAGS += -Wno-maybe-uninitialized -Wno-parentheses
-LOCAL_CFLAGS += -DHWUI_NEW_OPS
+#LOCAL_CFLAGS += -DHWUI_NEW_OPS
 LOCAL_CPPFLAGS += -Wno-conversion-null
 
 ifeq ($(TARGET_ARCH), arm)
diff --git a/core/jni/android_media_AudioRecord.cpp b/core/jni/android_media_AudioRecord.cpp
index d0326f1..6904fda 100644
--- a/core/jni/android_media_AudioRecord.cpp
+++ b/core/jni/android_media_AudioRecord.cpp
@@ -180,9 +180,13 @@
 // ----------------------------------------------------------------------------
 static jint
 android_media_AudioRecord_setup(JNIEnv *env, jobject thiz, jobject weak_this,
-        jobject jaa, jint sampleRateInHertz, jint channelMask, jint channelIndexMask,
+        jobject jaa, jintArray jSampleRate, jint channelMask, jint channelIndexMask,
         jint audioFormat, jint buffSizeInBytes, jintArray jSession, jstring opPackageName)
 {
+    jint elements[1];
+    env->GetIntArrayRegion(jSampleRate, 0, 1, elements);
+    int sampleRateInHertz = elements[0];
+
     //ALOGV(">> Entering android_media_AudioRecord_setup");
     //ALOGV("sampleRate=%d, audioFormat=%d, channel mask=%x, buffSizeInBytes=%d",
     //     sampleRateInHertz, audioFormat, channelMask, buffSizeInBytes);
@@ -304,6 +308,11 @@
     env->ReleasePrimitiveArrayCritical(jSession, nSession, 0);
     nSession = NULL;
 
+    {
+        const jint elements[1] = { (jint) lpRecorder->getSampleRate() };
+        env->SetIntArrayRegion(jSampleRate, 0, 1, elements);
+    }
+
     {   // scope for the lock
         Mutex::Autolock l(sLock);
         sAudioRecordCallBackCookies.add(lpCallbackData);
@@ -717,7 +726,7 @@
     // name,               signature,  funcPtr
     {"native_start",         "(II)I",    (void *)android_media_AudioRecord_start},
     {"native_stop",          "()V",    (void *)android_media_AudioRecord_stop},
-    {"native_setup",         "(Ljava/lang/Object;Ljava/lang/Object;IIIII[ILjava/lang/String;)I",
+    {"native_setup",         "(Ljava/lang/Object;Ljava/lang/Object;[IIIII[ILjava/lang/String;)I",
                                        (void *)android_media_AudioRecord_setup},
     {"native_finalize",      "()V",    (void *)android_media_AudioRecord_finalize},
     {"native_release",       "()V",    (void *)android_media_AudioRecord_release},
diff --git a/core/jni/android_media_AudioTrack.cpp b/core/jni/android_media_AudioTrack.cpp
index 1ab9504..84cc185 100644
--- a/core/jni/android_media_AudioTrack.cpp
+++ b/core/jni/android_media_AudioTrack.cpp
@@ -215,9 +215,13 @@
 static jint
 android_media_AudioTrack_setup(JNIEnv *env, jobject thiz, jobject weak_this,
         jobject jaa,
-        jint sampleRateInHertz, jint channelPositionMask, jint channelIndexMask,
+        jintArray jSampleRate, jint channelPositionMask, jint channelIndexMask,
         jint audioFormat, jint buffSizeInBytes, jint memoryMode, jintArray jSession) {
 
+    jint elements[1];
+    env->GetIntArrayRegion(jSampleRate, 0, 1, elements);
+    int sampleRateInHertz = elements[0];
+
     ALOGV("sampleRate=%d, channel mask=%x, index mask=%x, audioFormat(Java)=%d, buffSize=%d",
         sampleRateInHertz, channelPositionMask, channelIndexMask, audioFormat, buffSizeInBytes);
 
@@ -370,6 +374,11 @@
     env->ReleasePrimitiveArrayCritical(jSession, nSession, 0);
     nSession = NULL;
 
+    {
+        const jint elements[1] = { (jint) lpTrack->getSampleRate() };
+        env->SetIntArrayRegion(jSampleRate, 0, 1, elements);
+    }
+
     {   // scope for the lock
         Mutex::Autolock l(sLock);
         sAudioTrackCallBackCookies.add(&lpJniStorage->mCallbackData);
@@ -1114,7 +1123,7 @@
     {"native_stop",          "()V",      (void *)android_media_AudioTrack_stop},
     {"native_pause",         "()V",      (void *)android_media_AudioTrack_pause},
     {"native_flush",         "()V",      (void *)android_media_AudioTrack_flush},
-    {"native_setup",     "(Ljava/lang/Object;Ljava/lang/Object;IIIIII[I)I",
+    {"native_setup",     "(Ljava/lang/Object;Ljava/lang/Object;[IIIIII[I)I",
                                          (void *)android_media_AudioTrack_setup},
     {"native_finalize",      "()V",      (void *)android_media_AudioTrack_finalize},
     {"native_release",       "()V",      (void *)android_media_AudioTrack_release},
diff --git a/core/res/res/values-television/config.xml b/core/res/res/values-television/config.xml
index a3a3112..ae19150 100644
--- a/core/res/res/values-television/config.xml
+++ b/core/res/res/values-television/config.xml
@@ -25,7 +25,7 @@
     <bool name="config_defaultWindowFeatureOptionsPanel">false</bool>
 
     <!-- Default bounds [left top right bottom] on screen for picture-in-picture windows. -->
-    <string translatable="false" name="config_defaultPictureInPictureBounds">"1328 54 1808 324"</string>
+    <string translatable="false" name="config_defaultPictureInPictureBounds">"1420 100 1820 325"</string>
 
     <!-- Bounds [left top right bottom] on screen for picture-in-picture (PIP) windows, when the PIP
          is located in center. -->
@@ -34,5 +34,4 @@
     <!-- Bounds [left top right bottom] on screen for picture-in-picture (PIP) windows,
          when the PIP is shown with Recents. -->
     <string translatable="false" name="config_pictureInPictureBoundsInRecents">"1480 123 1760 303"</string>
-
 </resources>
diff --git a/core/tests/utiltests/Android.mk b/core/tests/utiltests/Android.mk
index f949e1a..3c6c32e 100644
--- a/core/tests/utiltests/Android.mk
+++ b/core/tests/utiltests/Android.mk
@@ -12,7 +12,8 @@
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
-    android-support-test
+    android-support-test \
+    mockito-target
 
 LOCAL_JAVA_LIBRARIES := android.test.runner
 
diff --git a/core/tests/utiltests/src/com/android/internal/util/WakeupMessageTest.java b/core/tests/utiltests/src/com/android/internal/util/WakeupMessageTest.java
new file mode 100644
index 0000000..da8bc1d
--- /dev/null
+++ b/core/tests/utiltests/src/com/android/internal/util/WakeupMessageTest.java
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.util;
+
+import static org.junit.Assert.*;
+import static org.mockito.Mockito.*;
+
+import android.app.AlarmManager;
+import android.content.Context;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.mockito.ArgumentCaptor;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.mockito.Spy;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+
+/**
+ * Unit tests for {@link com.android.internal.util.WakeupMessage}.
+ */
+@SmallTest
+public class WakeupMessageTest {
+    private static final String TEST_CMD_NAME = "TEST cmd Name";
+    private static final int TEST_CMD = 18;
+    private static final int TEST_ARG1 = 33;
+    private static final int TEST_ARG2 = 182;
+
+    @Mock AlarmManager mAlarmManager;
+    WakeupMessage mMessage;
+    // Make a spy so that we can verify calls to it
+    @Spy MessageCapturingHandler mHandler = new MessageCapturingHandler();
+
+    ArgumentCaptor<AlarmManager.OnAlarmListener> mListenerCaptor =
+            ArgumentCaptor.forClass(AlarmManager.OnAlarmListener.class);
+
+    /**
+     * A Handler that will capture the most recent message sent to it.
+     *
+     * This handler is setup on the main Looper
+     */
+    public static class MessageCapturingHandler extends Handler {
+        private Message mLastMessage;
+
+        public MessageCapturingHandler() {
+            super(Looper.getMainLooper(), /* Nothing is actually dispatched on this Looper */
+                    null, false);
+        }
+
+        @Override
+        public void handleMessage(Message m) {
+            // need to copy since it will be recycled after this method returns
+            mLastMessage = Message.obtain(m);
+        }
+
+        public Message getLastMessage() {
+            return mLastMessage;
+        }
+    }
+
+    /**
+     * Sets up the test.
+     */
+    @Before
+    public void setUp() {
+        MockitoAnnotations.initMocks(this);
+
+        Context context = mock(Context.class);
+        when(context.getSystemService(Context.ALARM_SERVICE)).thenReturn(mAlarmManager);
+        // capture the listener for each AlarmManager.setExact call
+        doNothing().when(mAlarmManager).setExact(anyInt(), anyLong(), any(String.class),
+                mListenerCaptor.capture(), any(Handler.class));
+
+        mMessage = new WakeupMessage(context, mHandler, TEST_CMD_NAME, TEST_CMD, TEST_ARG1,
+                TEST_ARG2);
+    }
+
+    /**
+     * Ensure the test is cleaned up and ready for the next test.
+     */
+    @After
+    public void cleanup() {
+        validateMockitoUsage();
+    }
+
+    private void scheduleAndVerifyAlarm(long when) {
+        mMessage.schedule(when);
+        verify(mAlarmManager).setExact(eq(AlarmManager.ELAPSED_REALTIME_WAKEUP), eq(when),
+                eq(TEST_CMD_NAME), any(AlarmManager.OnAlarmListener.class), eq(mHandler));
+    }
+
+    private void verifyMessageDispatchedOnce() {
+        verify(mHandler, times(1)).handleMessage(any(Message.class));
+        assertEquals("what", TEST_CMD, mHandler.getLastMessage().what);
+        assertEquals("arg1", TEST_ARG1, mHandler.getLastMessage().arg1);
+        assertEquals("arg2", TEST_ARG2, mHandler.getLastMessage().arg2);
+    }
+
+    /**
+     * Schedule and deliver a single message
+     */
+    @Test
+    public void scheduleAndDeliverMessage() {
+        final long when = 1001;
+        scheduleAndVerifyAlarm(when);
+        verify(mHandler, never()).handleMessage(any(Message.class));
+        mListenerCaptor.getValue().onAlarm();
+        verifyMessageDispatchedOnce();
+    }
+
+    /**
+     * Check that the message is not delivered if cancel is called it after its alarm fires but
+     * before onAlarm is called.
+     *
+     * This ensures that if cancel is called on the handler thread, any previously-scheduled message
+     * is guaranteed not to be delivered.
+     */
+    @Test
+    public void scheduleAndCancelMessage() {
+        final long when = 1010;
+        scheduleAndVerifyAlarm(when);
+        mMessage.cancel();
+        mListenerCaptor.getValue().onAlarm();
+        verify(mHandler, never()).handleMessage(any(Message.class));
+    }
+
+    /**
+     * Verify nothing happens when cancel is called without a schedule
+     */
+    @Test
+    public void cancelWithoutSchedule() {
+        mMessage.cancel();
+    }
+
+    /**
+     * Verify that the message is silently rescheduled if schedule is called twice without the
+     * message being dispatched first.
+     */
+    @Test
+    public void scheduleTwiceWithoutMessageDispatched() {
+        final long when1 = 1011;
+        final long when2 = 1012;
+        scheduleAndVerifyAlarm(when1);
+        scheduleAndVerifyAlarm(when2);
+        mListenerCaptor.getValue().onAlarm();
+        verifyMessageDispatchedOnce();
+    }
+
+}
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index da7b7fb..8831baf 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
-HWUI_NEW_OPS := true
+HWUI_NEW_OPS := false
 
 # Enables fine-grained GLES error checking
 # If set to true, every GLES call is wrapped & error checked
diff --git a/location/java/android/location/GnssClock.java b/location/java/android/location/GnssClock.java
index 5ba3f2c..3c8a78d 100644
--- a/location/java/android/location/GnssClock.java
+++ b/location/java/android/location/GnssClock.java
@@ -16,42 +16,16 @@
 
 package android.location;
 
-import android.annotation.IntDef;
 import android.os.Parcel;
 import android.os.Parcelable;
 
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-
 /**
  * A class containing a GPS clock timestamp.
  * It represents a measurement of the GPS receiver's clock.
  */
 public final class GnssClock implements Parcelable {
-
     // The following enumerations must be in sync with the values declared in gps.h
 
-    /** The type of the GPS Clock. */
-    @Retention(RetentionPolicy.SOURCE)
-    @IntDef({CLOCK_TYPE_UNKNOWN, CLOCK_TYPE_LOCAL_HW_TIME, CLOCK_TYPE_GPS_TIME})
-    public @interface GnssClockType {}
-
-    /**
-     * The type of the time stored is not available or it is unknown.
-     */
-    public static final byte CLOCK_TYPE_UNKNOWN = 0;
-
-    /**
-     * The source of the time value reported by this class is the 'Local Hardware Clock'.
-     */
-    public static final byte CLOCK_TYPE_LOCAL_HW_TIME = 1;
-
-    /**
-     * The source of the time value reported by this class is the 'GPS time' derived from
-     * satellites (epoch = Jan 6, 1980).
-     */
-    public static final byte CLOCK_TYPE_GPS_TIME = 2;
-
     private static final short HAS_NO_FLAGS = 0;
     private static final short HAS_LEAP_SECOND = (1<<0);
     private static final short HAS_TIME_UNCERTAINTY = (1<<1);
@@ -65,7 +39,6 @@
 
     private short mFlags;
     private short mLeapSecond;
-    private byte mType;
     private long mTimeInNs;
     private double mTimeUncertaintyInNs;
     private long mFullBiasInNs;
@@ -85,7 +58,6 @@
     public void set(GnssClock clock) {
         mFlags = clock.mFlags;
         mLeapSecond = clock.mLeapSecond;
-        mType = clock.mType;
         mTimeInNs = clock.mTimeInNs;
         mTimeUncertaintyInNs = clock.mTimeUncertaintyInNs;
         mFullBiasInNs = clock.mFullBiasInNs;
@@ -104,38 +76,6 @@
     }
 
     /**
-     * Gets the type of time reported by {@link #getTimeInNs()}.
-     */
-    @GnssClockType
-    public byte getType() {
-        return mType;
-    }
-
-    /**
-     * Sets the type of time reported.
-     */
-    public void setType(@GnssClockType byte value) {
-        mType = value;
-    }
-
-    /**
-     * Gets a string representation of the 'type'.
-     * For internal and logging use only.
-     */
-    private String getTypeString() {
-        switch (mType) {
-            case CLOCK_TYPE_UNKNOWN:
-                return "Unknown";
-            case CLOCK_TYPE_GPS_TIME:
-                return "GpsTime";
-            case CLOCK_TYPE_LOCAL_HW_TIME:
-                return "LocalHwClock";
-            default:
-                return "<Invalid:" + mType + ">";
-        }
-    }
-
-    /**
      * Returns true if {@link #getLeapSecond()} is available, false otherwise.
      */
     public boolean hasLeapSecond() {
@@ -170,10 +110,7 @@
     }
 
     /**
-     * Gets the GPS receiver internal clock value in nanoseconds.
-     * This can be either the 'local hardware clock' value ({@link #CLOCK_TYPE_LOCAL_HW_TIME}), or the
-     * current GPS time derived inside GPS receiver ({@link #CLOCK_TYPE_GPS_TIME}).
-     * {@link #getType()} defines the time reported.
+     * Gets the GNSS receiver internal clock value in nanoseconds.
      *
      * For 'local hardware clock' this value is expected to be monotonically increasing during the
      * reporting session. The real GPS time can be derived by compensating
@@ -241,15 +178,14 @@
      * Gets the difference between hardware clock ({@link #getTimeInNs()}) inside GPS receiver and
      * the true GPS time since 0000Z, January 6, 1980, in nanoseconds.
      *
-     * This value is available if {@link #CLOCK_TYPE_LOCAL_HW_TIME} is set, and GPS receiver has solved
-     * the clock for GPS time.
-     * {@link #getBiasUncertaintyInNs()} should be used for quality check.
+     * This value is available if the receiver has estimated GPS time. If the computed time is for a
+     * non-GPS constellation, the time offset of that constellation to GPS has to be applied to fill
+     * this value. The value contains the 'bias uncertainty' {@link #getBiasUncertaintyInNs()} in
+     * it, and it should be used for quality check. The value is only available if
+     * {@link #hasFullBiasInNs()} is true.
      *
      * The sign of the value is defined by the following equation:
-     *      true time (GPS time) = time_ns + (full_bias_ns + bias_ns)
-     *
-     * The reported full bias includes {@link #getBiasUncertaintyInNs()}.
-     * The value is onl available if {@link #hasFullBiasInNs()} is true.
+     *      local estimate of GPS time = time_ns + (full_bias_ns + bias_ns)
      */
     public long getFullBiasInNs() {
         return mFullBiasInNs;
@@ -423,7 +359,6 @@
 
             gpsClock.mFlags = (short) parcel.readInt();
             gpsClock.mLeapSecond = (short) parcel.readInt();
-            gpsClock.mType = parcel.readByte();
             gpsClock.mTimeInNs = parcel.readLong();
             gpsClock.mTimeUncertaintyInNs = parcel.readDouble();
             gpsClock.mFullBiasInNs = parcel.readLong();
@@ -446,7 +381,6 @@
     public void writeToParcel(Parcel parcel, int flags) {
         parcel.writeInt(mFlags);
         parcel.writeInt(mLeapSecond);
-        parcel.writeByte(mType);
         parcel.writeLong(mTimeInNs);
         parcel.writeDouble(mTimeUncertaintyInNs);
         parcel.writeLong(mFullBiasInNs);
@@ -468,8 +402,6 @@
         final String formatWithUncertainty = "   %-15s = %-25s   %-26s = %s\n";
         StringBuilder builder = new StringBuilder("GnssClock:\n");
 
-        builder.append(String.format(format, "Type", getTypeString()));
-
         builder.append(String.format(format, "LeapSecond", hasLeapSecond() ? mLeapSecond : null));
 
         builder.append(String.format(
@@ -498,17 +430,12 @@
                 "DriftUncertaintyInNsPerSec",
                 hasDriftUncertaintyInNsPerSec() ? mDriftUncertaintyInNsPerSec : null));
 
-        builder.append(String.format(format, "HardwareClockDiscontinuityCount",
-                getType() == CLOCK_TYPE_LOCAL_HW_TIME
-                        ? mHardwareClockDiscontinuityCount : null));
-
         return builder.toString();
     }
 
     private void initialize() {
         mFlags = HAS_NO_FLAGS;
         resetLeapSecond();
-        setType(CLOCK_TYPE_UNKNOWN);
         setTimeInNs(Long.MIN_VALUE);
         resetTimeUncertaintyInNs();
         resetFullBiasInNs();
diff --git a/location/java/android/location/GnssMeasurement.java b/location/java/android/location/GnssMeasurement.java
index a619ab2..abdc13c 100644
--- a/location/java/android/location/GnssMeasurement.java
+++ b/location/java/android/location/GnssMeasurement.java
@@ -272,8 +272,9 @@
 
     /**
      * Gets the time offset at which the measurement was taken in nanoseconds.
-     * The reference receiver's time is specified by {@link GnssClock#getTimeInNs()} and should be
-     * interpreted in the same way as indicated by {@link GnssClock#getType()}.
+     *
+     * The reference receiver's time from which this is offset is specified by
+     * {@link GnssClock#getTimeInNs()}.
      *
      * The sign of this value is given by the following equation:
      *      measurement time = time_ns + time_offset_ns
diff --git a/media/java/android/media/AudioFormat.java b/media/java/android/media/AudioFormat.java
index 22f4f04..a0dfaa0f 100644
--- a/media/java/android/media/AudioFormat.java
+++ b/media/java/android/media/AudioFormat.java
@@ -335,6 +335,24 @@
             CHANNEL_OUT_LOW_FREQUENCY);
     // CHANNEL_OUT_ALL is not yet defined; if added then it should match AUDIO_CHANNEL_OUT_ALL
 
+    /** Minimum value for sample rate,
+     *  assuming AudioTrack and AudioRecord share the same limitations.
+     * @hide
+     */
+    // never unhide
+    public static final int SAMPLE_RATE_HZ_MIN = 4000;
+    /** Maximum value for sample rate,
+     *  assuming AudioTrack and AudioRecord share the same limitations.
+     * @hide
+     */
+    // never unhide
+    public static final int SAMPLE_RATE_HZ_MAX = 192000;
+    /** Sample rate will be a route-dependent value.
+     * For AudioTrack, it is usually the sink sample rate,
+     * and for AudioRecord it is usually the source sample rate.
+     */
+    public static final int SAMPLE_RATE_UNSPECIFIED = 0;
+
     /**
      * @hide
      * Return the input channel mask corresponding to an output channel mask.
@@ -561,7 +579,7 @@
     }
 
     /**
-     * Constructor used by the JNI
+     * Constructor used by the JNI.  Parameters are not checked for validity.
      */
     // Update sound trigger JNI in core/jni/android_hardware_SoundTrigger.cpp when modifying this
     // constructor
@@ -610,12 +628,9 @@
     /**
      * Return the sample rate.
      * @return one of the values that can be set in {@link Builder#setSampleRate(int)} or
-     * 0 if not set.
+     * {@link #SAMPLE_RATE_UNSPECIFIED} if not set.
      */
     public int getSampleRate() {
-        if ((mPropertySetMask & AUDIO_FORMAT_HAS_PROPERTY_SAMPLE_RATE) == 0) {
-            return 0;
-        }
         return mSampleRate;
     }
 
@@ -687,7 +702,7 @@
      */
     public static class Builder {
         private int mEncoding = ENCODING_INVALID;
-        private int mSampleRate = 0;
+        private int mSampleRate = SAMPLE_RATE_UNSPECIFIED;
         private int mChannelMask = CHANNEL_INVALID;
         private int mChannelIndexMask = 0;
         private int mPropertySetMask = AUDIO_FORMAT_HAS_PROPERTY_NONE;
@@ -718,6 +733,8 @@
         public AudioFormat build() {
             AudioFormat af = new AudioFormat(1980/*ignored*/);
             af.mEncoding = mEncoding;
+            // not calling setSampleRate is equivalent to calling
+            // setSampleRate(SAMPLE_RATE_UNSPECIFIED)
             af.mSampleRate = mSampleRate;
             af.mChannelMask = mChannelMask;
             af.mChannelIndexMask = mChannelIndexMask;
@@ -795,7 +812,7 @@
          *    are specified but do not have the same channel count.
          */
         public @NonNull Builder setChannelMask(int channelMask) {
-            if (channelMask == 0) {
+            if (channelMask == CHANNEL_INVALID) {
                 throw new IllegalArgumentException("Invalid zero channel mask");
             } else if (/* channelMask != 0 && */ mChannelIndexMask != 0 &&
                     Integer.bitCount(channelMask) != Integer.bitCount(mChannelIndexMask)) {
@@ -867,7 +884,11 @@
          * @throws java.lang.IllegalArgumentException
          */
         public Builder setSampleRate(int sampleRate) throws IllegalArgumentException {
-            if ((sampleRate <= 0) || (sampleRate > 192000)) {
+            // TODO Consider whether to keep the MIN and MAX range checks here.
+            // It is not necessary and poses the problem of defining the limits independently from
+            // native implementation or platform capabilities.
+            if (((sampleRate < SAMPLE_RATE_HZ_MIN) || (sampleRate > SAMPLE_RATE_HZ_MAX)) &&
+                    sampleRate != SAMPLE_RATE_UNSPECIFIED) {
                 throw new IllegalArgumentException("Invalid sample rate " + sampleRate);
             }
             mSampleRate = sampleRate;
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index dc534be..38e3b15 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -3321,6 +3321,7 @@
      * Used as a key for {@link #getProperty} to request the native or optimal output sample rate
      * for this device's primary output stream, in decimal Hz.
      */
+    // FIXME Deprecate
     public static final String PROPERTY_OUTPUT_SAMPLE_RATE =
             "android.media.property.OUTPUT_SAMPLE_RATE";
 
@@ -3328,6 +3329,7 @@
      * Used as a key for {@link #getProperty} to request the native or optimal output buffer size
      * for this device's primary output stream, in decimal PCM frames.
      */
+    // FIXME Deprecate
     public static final String PROPERTY_OUTPUT_FRAMES_PER_BUFFER =
             "android.media.property.OUTPUT_FRAMES_PER_BUFFER";
 
diff --git a/media/java/android/media/AudioRecord.java b/media/java/android/media/AudioRecord.java
index e342385..8f6b178 100644
--- a/media/java/android/media/AudioRecord.java
+++ b/media/java/android/media/AudioRecord.java
@@ -57,10 +57,6 @@
     // Constants
     //--------------------
 
-    /** Minimum value for sample rate */
-    private static final int SAMPLE_RATE_HZ_MIN = 4000;
-    /** Maximum value for sample rate */
-    private static final int SAMPLE_RATE_HZ_MAX = 192000;
 
     /**
      *  indicates AudioRecord state is not successfully initialized.
@@ -168,8 +164,9 @@
     //--------------------
     /**
      * The audio data sampling rate in Hz.
+     * Never {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED}.
      */
-    private int mSampleRate;
+    private int mSampleRate; // initialized by all constructors via audioParamCheck()
     /**
      * The number of input audio channels (1 is mono, 2 is stereo)
      */
@@ -251,6 +248,9 @@
      * @param sampleRateInHz the sample rate expressed in Hertz. 44100Hz is currently the only
      *   rate that is guaranteed to work on all devices, but other rates such as 22050,
      *   16000, and 11025 may work on some devices.
+     *   {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED} means to use a route-dependent value
+     *   which is usually the sample rate of the source.
+     *   {@link #getSampleRate()} can be used to retrieve the actual sample rate chosen.
      * @param channelConfig describes the configuration of the audio channels.
      *   See {@link AudioFormat#CHANNEL_IN_MONO} and
      *   {@link AudioFormat#CHANNEL_IN_STEREO}.  {@link AudioFormat#CHANNEL_IN_MONO} is guaranteed
@@ -337,16 +337,9 @@
             mAudioAttributes = attributes;
         }
 
-        int rate = 0;
-        if ((format.getPropertySetMask()
-                & AudioFormat.AUDIO_FORMAT_HAS_PROPERTY_SAMPLE_RATE) != 0)
-        {
-            rate = format.getSampleRate();
-        } else {
-            rate = AudioSystem.getPrimaryOutputSamplingRate();
-            if (rate <= 0) {
-                rate = 44100;
-            }
+        int rate = format.getSampleRate();
+        if (rate == AudioFormat.SAMPLE_RATE_UNSPECIFIED) {
+            rate = 0;
         }
 
         int encoding = AudioFormat.ENCODING_DEFAULT;
@@ -373,12 +366,13 @@
 
         audioBuffSizeCheck(bufferSizeInBytes);
 
+        int[] sampleRate = new int[] {mSampleRate};
         int[] session = new int[1];
         session[0] = sessionId;
         //TODO: update native initialization when information about hardware init failure
         //      due to capture device already open is available.
         int initResult = native_setup( new WeakReference<AudioRecord>(this),
-                mAudioAttributes, mSampleRate, mChannelMask, mChannelIndexMask,
+                mAudioAttributes, sampleRate, mChannelMask, mChannelIndexMask,
                 mAudioFormat, mNativeBufferSizeInBytes,
                 session, ActivityThread.currentOpPackageName());
         if (initResult != SUCCESS) {
@@ -386,6 +380,7 @@
             return; // with mState == STATE_UNINITIALIZED
         }
 
+        mSampleRate = sampleRate[0];
         mSessionId = session[0];
 
         mState = STATE_INITIALIZED;
@@ -623,6 +618,7 @@
 
         return mask;
     }
+
     // postconditions:
     //    mRecordSource is valid
     //    mAudioFormat is valid
@@ -642,7 +638,9 @@
 
         //--------------
         // sample rate
-        if ((sampleRateInHz < SAMPLE_RATE_HZ_MIN) || (sampleRateInHz > SAMPLE_RATE_HZ_MAX)) {
+        if ((sampleRateInHz < AudioFormat.SAMPLE_RATE_HZ_MIN ||
+                sampleRateInHz > AudioFormat.SAMPLE_RATE_HZ_MAX) &&
+                sampleRateInHz != AudioFormat.SAMPLE_RATE_UNSPECIFIED) {
             throw new IllegalArgumentException(sampleRateInHz
                     + "Hz is not a supported sample rate.");
         }
@@ -714,7 +712,11 @@
     // Getters
     //--------------------
     /**
-     * Returns the configured audio data sample rate in Hz
+     * Returns the configured audio sink sample rate in Hz.
+     * The sink sample rate never changes after construction.
+     * If the constructor had a specific sample rate, then the sink sample rate is that value.
+     * If the constructor had {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED},
+     * then the sink sample rate is a route-dependent default value based on the source [sic].
      */
     public int getSampleRate() {
         return mSampleRate;
@@ -861,6 +863,7 @@
      * See {@link #AudioRecord(int, int, int, int, int)} for more information on valid
      * configuration values.
      * @param sampleRateInHz the sample rate expressed in Hertz.
+     *   {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED} is not permitted.
      * @param channelConfig describes the configuration of the audio channels.
      *   See {@link AudioFormat#CHANNEL_IN_MONO} and
      *   {@link AudioFormat#CHANNEL_IN_STEREO}
@@ -1708,7 +1711,7 @@
 
     private native final int native_setup(Object audiorecord_this,
             Object /*AudioAttributes*/ attributes,
-            int sampleRate, int channelMask, int channelIndexMask, int audioFormat,
+            int[] sampleRate, int channelMask, int channelIndexMask, int audioFormat,
             int buffSizeInBytes, int[] sessionId, String opPackageName);
 
     // TODO remove: implementation calls directly into implementation of native_release()
diff --git a/media/java/android/media/AudioTrack.java b/media/java/android/media/AudioTrack.java
index 6fc2f87..708768c 100644
--- a/media/java/android/media/AudioTrack.java
+++ b/media/java/android/media/AudioTrack.java
@@ -91,11 +91,6 @@
      */
     private static final float GAIN_MAX = 1.0f;
 
-    /** Minimum value for sample rate */
-    private static final int SAMPLE_RATE_HZ_MIN = 4000;
-    /** Maximum value for sample rate */
-    private static final int SAMPLE_RATE_HZ_MAX = 192000;
-
     /** Maximum value for AudioTrack channel count
      * @hide public for MediaCode only, do not un-hide or change to a numeric literal
      */
@@ -254,6 +249,7 @@
     private final Looper mInitializationLooper;
     /**
      * The audio data source sampling rate in Hz.
+     * Never {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED}.
      */
     private int mSampleRate; // initialized by all constructors via audioParamCheck()
     /**
@@ -340,6 +336,9 @@
      *   {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_MUSIC},
      *   {@link AudioManager#STREAM_ALARM}, and {@link AudioManager#STREAM_NOTIFICATION}.
      * @param sampleRateInHz the initial source sample rate expressed in Hz.
+     *   {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED} means to use a route-dependent value
+     *   which is usually the sample rate of the sink.
+     *   {@link #getSampleRate()} can be used to retrieve the actual sample rate chosen.
      * @param channelConfig describes the configuration of the audio channels.
      *   See {@link AudioFormat#CHANNEL_OUT_MONO} and
      *   {@link AudioFormat#CHANNEL_OUT_STEREO}
@@ -389,6 +388,8 @@
      *   {@link AudioManager#STREAM_RING}, {@link AudioManager#STREAM_MUSIC},
      *   {@link AudioManager#STREAM_ALARM}, and {@link AudioManager#STREAM_NOTIFICATION}.
      * @param sampleRateInHz the initial source sample rate expressed in Hz.
+     *   {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED} means to use a route-dependent value
+     *   which is usually the sample rate of the sink.
      * @param channelConfig describes the configuration of the audio channels.
      *   See {@link AudioFormat#CHANNEL_OUT_MONO} and
      *   {@link AudioFormat#CHANNEL_OUT_STEREO}
@@ -461,16 +462,11 @@
             looper = Looper.getMainLooper();
         }
 
-        int rate = 0;
-        if ((format.getPropertySetMask() & AudioFormat.AUDIO_FORMAT_HAS_PROPERTY_SAMPLE_RATE) != 0)
-        {
-            rate = format.getSampleRate();
-        } else {
-            rate = AudioSystem.getPrimaryOutputSamplingRate();
-            if (rate <= 0) {
-                rate = 44100;
-            }
+        int rate = format.getSampleRate();
+        if (rate == AudioFormat.SAMPLE_RATE_UNSPECIFIED) {
+            rate = 0;
         }
+
         int channelIndexMask = 0;
         if ((format.getPropertySetMask()
                 & AudioFormat.AUDIO_FORMAT_HAS_PROPERTY_CHANNEL_INDEX_MASK) != 0) {
@@ -503,17 +499,19 @@
             throw new IllegalArgumentException("Invalid audio session ID: "+sessionId);
         }
 
+        int[] sampleRate = new int[] {mSampleRate};
         int[] session = new int[1];
         session[0] = sessionId;
         // native initialization
         int initResult = native_setup(new WeakReference<AudioTrack>(this), mAttributes,
-                mSampleRate, mChannelMask, mChannelIndexMask, mAudioFormat,
+                sampleRate, mChannelMask, mChannelIndexMask, mAudioFormat,
                 mNativeBufferSizeInBytes, mDataLoadMode, session);
         if (initResult != SUCCESS) {
             loge("Error code "+initResult+" when initializing AudioTrack.");
             return; // with mState == STATE_UNINITIALIZED
         }
 
+        mSampleRate = sampleRate[0];
         mSessionId = session[0];
 
         if (mDataLoadMode == MODE_STATIC) {
@@ -712,7 +710,7 @@
             if (mFormat == null) {
                 mFormat = new AudioFormat.Builder()
                         .setChannelMask(AudioFormat.CHANNEL_OUT_STEREO)
-                        .setSampleRate(AudioSystem.getPrimaryOutputSamplingRate())
+                        //.setSampleRate(AudioFormat.SAMPLE_RATE_UNSPECIFIED)
                         .setEncoding(AudioFormat.ENCODING_DEFAULT)
                         .build();
             }
@@ -762,7 +760,9 @@
                                  int audioFormat, int mode) {
         //--------------
         // sample rate, note these values are subject to change
-        if (sampleRateInHz < SAMPLE_RATE_HZ_MIN || sampleRateInHz > SAMPLE_RATE_HZ_MAX) {
+        if ((sampleRateInHz < AudioFormat.SAMPLE_RATE_HZ_MIN ||
+                sampleRateInHz > AudioFormat.SAMPLE_RATE_HZ_MAX) &&
+                sampleRateInHz != AudioFormat.SAMPLE_RATE_UNSPECIFIED) {
             throw new IllegalArgumentException(sampleRateInHz
                     + "Hz is not a supported sample rate.");
         }
@@ -948,7 +948,13 @@
     }
 
     /**
-     * Returns the configured audio data sample rate in Hz
+     * Returns the configured audio source sample rate in Hz.
+     * The initial source sample rate depends on the constructor parameters,
+     * but the source sample rate may change if {@link #setPlaybackRate(int)} is called.
+     * If the constructor had a specific sample rate, then the initial sink sample rate is that
+     * value.
+     * If the constructor had {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED},
+     * then the initial sink sample rate is a route-dependent default value based on the source [sic].
      */
     public int getSampleRate() {
         return mSampleRate;
@@ -1218,6 +1224,7 @@
      * to a higher value than the initial source sample rate, be sure to configure the buffer size
      * based on the highest planned sample rate.
      * @param sampleRateInHz the source sample rate expressed in Hz.
+     *   {@link AudioFormat#SAMPLE_RATE_UNSPECIFIED} is not permitted.
      * @param channelConfig describes the configuration of the audio channels.
      *   See {@link AudioFormat#CHANNEL_OUT_MONO} and
      *   {@link AudioFormat#CHANNEL_OUT_STEREO}
@@ -1255,7 +1262,9 @@
         }
 
         // sample rate, note these values are subject to change
-        if ( (sampleRateInHz < SAMPLE_RATE_HZ_MIN) || (sampleRateInHz > SAMPLE_RATE_HZ_MAX) ) {
+        // Note: AudioFormat.SAMPLE_RATE_UNSPECIFIED is not allowed
+        if ( (sampleRateInHz < AudioFormat.SAMPLE_RATE_HZ_MIN) ||
+                (sampleRateInHz > AudioFormat.SAMPLE_RATE_HZ_MAX) ) {
             loge("getMinBufferSize(): " + sampleRateInHz + " Hz is not a supported sample rate.");
             return ERROR_BAD_VALUE;
         }
@@ -2763,7 +2772,7 @@
     //     AudioAttributes.USAGE_MEDIA will map to AudioManager.STREAM_MUSIC
     private native final int native_setup(Object /*WeakReference<AudioTrack>*/ audiotrack_this,
             Object /*AudioAttributes*/ attributes,
-            int sampleRate, int channelMask, int channelIndexMask, int audioFormat,
+            int[] sampleRate, int channelMask, int channelIndexMask, int audioFormat,
             int buffSizeInBytes, int mode, int[] sessionId);
 
     private native final void native_finalize();
diff --git a/media/java/android/media/audiopolicy/AudioMix.java b/media/java/android/media/audiopolicy/AudioMix.java
index 4ffac6d..55fb82b 100644
--- a/media/java/android/media/audiopolicy/AudioMix.java
+++ b/media/java/android/media/audiopolicy/AudioMix.java
@@ -277,6 +277,7 @@
                 mRouteFlags = ROUTE_FLAG_RENDER;
             }
             if (mFormat == null) {
+                // FIXME Can we eliminate this?  Will AudioMix work with an unspecified sample rate?
                 int rate = AudioSystem.getPrimaryOutputSamplingRate();
                 if (rate <= 0) {
                     rate = 44100;
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
index 2ae3ec62..7a6aad6 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
@@ -16,6 +16,7 @@
 
 package com.android.printspooler.model;
 
+import android.annotation.NonNull;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.net.Uri;
@@ -57,6 +58,8 @@
 
     private static final boolean DEBUG = false;
 
+    private static final long FORCE_CANCEL_TIMEOUT = 1000; // ms
+
     private static final int STATE_INITIAL = 0;
     private static final int STATE_STARTED = 1;
     private static final int STATE_UPDATING = 2;
@@ -212,7 +215,7 @@
             // cancellation and start over.
             if (mCurrentCommand != null && (mCurrentCommand.isRunning()
                     || mCurrentCommand.isPending())) {
-                mCurrentCommand.cancel();
+                mCurrentCommand.cancel(false);
             }
 
             // Schedule a layout command.
@@ -233,7 +236,7 @@
             // Cancel the current write as a new one is to be scheduled.
             if (mCurrentCommand instanceof WriteCommand
                     && (mCurrentCommand.isPending() || mCurrentCommand.isRunning())) {
-                mCurrentCommand.cancel();
+                mCurrentCommand.cancel(false);
             }
 
             // Schedule a write command.
@@ -277,9 +280,9 @@
         }
     }
 
-    public void cancel() {
+    public void cancel(boolean force) {
         if (DEBUG) {
-            Log.i(LOG_TAG, "[CALLED] cancel()");
+            Log.i(LOG_TAG, "[CALLED] cancel(" + force + ")");
         }
 
         mNextCommand = null;
@@ -290,7 +293,7 @@
 
         mState = STATE_CANCELING;
 
-        mCurrentCommand.cancel();
+        mCurrentCommand.cancel(force);
     }
 
     public void destroy() {
@@ -441,8 +444,9 @@
         if (mCurrentCommand != null) {
             if (mCurrentCommand.isPending()) {
                 mCurrentCommand.run();
+
+                mState = STATE_UPDATING;
             }
-            mState = STATE_UPDATING;
         } else {
             mState = STATE_UPDATED;
         }
@@ -535,14 +539,17 @@
 
         protected final CommandDoneCallback mDoneCallback;
 
+        private final Handler mHandler;
+
         protected ICancellationSignal mCancellation;
 
         private CharSequence mError;
 
         private int mState = STATE_PENDING;
 
-        public AsyncCommand(IPrintDocumentAdapter adapter, RemotePrintDocumentInfo document,
+        public AsyncCommand(Looper looper, IPrintDocumentAdapter adapter, RemotePrintDocumentInfo document,
                 CommandDoneCallback doneCallback) {
+            mHandler = new AsyncCommandHandler(looper);
             mAdapter = adapter;
             mDocument = document;
             mDoneCallback = doneCallback;
@@ -556,7 +563,29 @@
             return mState == STATE_CANCELED;
         }
 
-        public final void cancel() {
+        /**
+         * If a force cancel is pending, remove it. This is usually called when a command returns
+         * and thereby does not need to be canceled anymore.
+         */
+        protected void removeForceCancel() {
+            if (DEBUG) {
+                if (mHandler.hasMessages(AsyncCommandHandler.MSG_FORCE_CANCEL)) {
+                    Log.i(LOG_TAG, "[FORCE CANCEL] Removed");
+                }
+            }
+
+            mHandler.removeMessages(AsyncCommandHandler.MSG_FORCE_CANCEL);
+        }
+
+        /**
+         * Cancel the current command.
+         *
+         * @param force If set, does not wait for the {@link PrintDocumentAdapter} to cancel. This
+         *              should only be used if this is the last command send to the as otherwise the
+         *              {@link PrintDocumentAdapter adapter} might get commands while it is still
+         *              running the old one.
+         */
+        public final void cancel(boolean force) {
             if (isRunning()) {
                 canceling();
                 if (mCancellation != null) {
@@ -566,14 +595,25 @@
                         Log.w(LOG_TAG, "Error while canceling", re);
                     }
                 }
-            } else if (isCanceling()) {
-                // Nothing to do
-            } else {
-                canceled();
-
-                // Done.
-                mDoneCallback.onDone();
             }
+
+            if (isCanceling()) {
+                if (force) {
+                    if (DEBUG) {
+                        Log.i(LOG_TAG, "[FORCE CANCEL] queued");
+                    }
+                    mHandler.sendMessageDelayed(
+                            mHandler.obtainMessage(AsyncCommandHandler.MSG_FORCE_CANCEL),
+                            FORCE_CANCEL_TIMEOUT);
+                }
+
+                return;
+            }
+
+            canceled();
+
+            // Done.
+            mDoneCallback.onDone();
         }
 
         protected final void canceling() {
@@ -617,7 +657,7 @@
         }
 
         protected final void failed(CharSequence error) {
-            if (mState != STATE_RUNNING) {
+            if (mState != STATE_RUNNING && mState != STATE_CANCELING) {
                 throw new IllegalStateException("Not running.");
             }
             mState = STATE_FAILED;
@@ -632,6 +672,37 @@
         public CharSequence getError() {
             return mError;
         }
+
+        /**
+         * Handler for the async command.
+         */
+        private class AsyncCommandHandler extends Handler {
+            /** Message indicated the desire for to force cancel a command */
+            final static int MSG_FORCE_CANCEL = 0;
+
+            AsyncCommandHandler(@NonNull Looper looper) {
+                super(looper);
+            }
+
+            @Override
+            public void handleMessage(Message msg) {
+                switch (msg.what) {
+                    case MSG_FORCE_CANCEL:
+                        if (isCanceling()) {
+                            if (DEBUG) {
+                                Log.i(LOG_TAG, "[FORCE CANCEL] executed");
+                            }
+                            failed("Command did not respond to cancellation in "
+                                    + FORCE_CANCEL_TIMEOUT + " ms");
+
+                            mDoneCallback.onDone();
+                        }
+                        break;
+                    default:
+                        // not reached;
+                }
+            }
+        }
     }
 
     private static final class LayoutCommand extends AsyncCommand {
@@ -646,7 +717,7 @@
         public LayoutCommand(Looper looper, IPrintDocumentAdapter adapter,
                 RemotePrintDocumentInfo document, PrintAttributes oldAttributes,
                 PrintAttributes newAttributes, boolean preview, CommandDoneCallback callback) {
-            super(adapter, document, callback);
+            super(looper, adapter, document, callback);
             mHandler = new LayoutHandler(looper);
             mRemoteResultCallback = new LayoutResultCallback(mHandler);
             mOldAttributes.copyFrom(oldAttributes);
@@ -795,6 +866,21 @@
 
             @Override
             public void handleMessage(Message message) {
+                // The command might have been force canceled, see
+                // AsyncCommand.AsyncCommandHandler#handleMessage
+                if (isFailed()) {
+                    if (DEBUG) {
+                        Log.i(LOG_TAG, "[CALLBACK] on canceled layout command");
+                    }
+
+                    return;
+                } else {
+                    if (message.what != MSG_ON_LAYOUT_STARTED) {
+                        // No need to force cancel anymore if layout finished
+                        removeForceCancel();
+                    }
+                }
+
                 switch (message.what) {
                     case MSG_ON_LAYOUT_STARTED: {
                         ICancellationSignal cancellation = (ICancellationSignal) message.obj;
@@ -882,7 +968,7 @@
         public WriteCommand(Context context, Looper looper, IPrintDocumentAdapter adapter,
                 RemotePrintDocumentInfo document, int pageCount, PageRange[] pages,
                 MutexFileProvider fileProvider, CommandDoneCallback callback) {
-            super(adapter, document, callback);
+            super(looper, adapter, document, callback);
             mContext = context;
             mHandler = new WriteHandler(looper);
             mRemoteResultCallback = new WriteResultCallback(mHandler);
@@ -1052,6 +1138,21 @@
 
             @Override
             public void handleMessage(Message message) {
+                // The command might have been force canceled, see
+                // AsyncCommand.AsyncCommandHandler#handleMessage
+                if (isFailed()) {
+                    if (DEBUG) {
+                        Log.i(LOG_TAG, "[CALLBACK] on canceled write command");
+                    }
+
+                    return;
+                } else {
+                    if (message.what != MSG_ON_WRITE_STARTED) {
+                        // No need to force cancel anymore if write finished
+                        removeForceCancel();
+                    }
+                }
+
                 switch (message.what) {
                     case MSG_ON_WRITE_STARTED: {
                         ICancellationSignal cancellation = (ICancellationSignal) message.obj;
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index 08cd0b6..64f5cc6 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -320,8 +320,8 @@
                 if (isFinishing() || (isFinalState(mState) && !mPrintedDocument.isUpdating())) {
                     return;
                 }
-                mPrintedDocument.cancel();
                 setState(STATE_PRINT_CANCELED);
+                mPrintedDocument.cancel(true);
                 doFinish();
             }
         }, PrintActivity.this);
@@ -1013,7 +1013,7 @@
     }
 
     private void requestCreatePdfFileOrFinish() {
-        mPrintedDocument.cancel();
+        mPrintedDocument.cancel(false);
 
         if (mCurrentPrinter == mDestinationSpinnerAdapter.getPdfPrinter()) {
             startCreateDocumentActivity();
@@ -1130,7 +1130,7 @@
     private void cancelPrint() {
         setState(STATE_PRINT_CANCELED);
         updateOptionsUi();
-        mPrintedDocument.cancel();
+        mPrintedDocument.cancel(true);
         doFinish();
     }
 
@@ -1889,7 +1889,7 @@
     public void onPrinterUnavailable(PrinterInfo printer) {
         if (mCurrentPrinter.getId().equals(printer.getId())) {
             setState(STATE_PRINTER_UNAVAILABLE);
-            mPrintedDocument.cancel();
+            mPrintedDocument.cancel(false);
             ensureErrorUiShown(getString(R.string.print_error_printer_unavailable),
                     PrintErrorFragment.ACTION_NONE);
             updateOptionsUi();
diff --git a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
index 1c032fa..a578055 100644
--- a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
+++ b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
@@ -18,6 +18,7 @@
 import android.annotation.LayoutRes;
 import android.annotation.Nullable;
 import android.app.Activity;
+import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -235,20 +236,24 @@
                     Intent.FLAG_ACTIVITY_CLEAR_TASK));
             return true;
         }
-        int numUserHandles = tile.userHandle.size();
-        if (numUserHandles > 1) {
-            ProfileSelectDialog.show(getFragmentManager(), tile);
-            return false;
-        } else if (numUserHandles == 1) {
-            // Show menu on top level items.
-            tile.intent.putExtra(EXTRA_SHOW_MENU, true);
-            tile.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
-            startActivityAsUser(tile.intent, tile.userHandle.get(0));
-        } else {
-            // Show menu on top level items.
-            tile.intent.putExtra(EXTRA_SHOW_MENU, true);
-            tile.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
-            startActivity(tile.intent);
+        try {
+            int numUserHandles = tile.userHandle.size();
+            if (numUserHandles > 1) {
+                ProfileSelectDialog.show(getFragmentManager(), tile);
+                return false;
+            } else if (numUserHandles == 1) {
+                // Show menu on top level items.
+                tile.intent.putExtra(EXTRA_SHOW_MENU, true);
+                tile.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                startActivityAsUser(tile.intent, tile.userHandle.get(0));
+            } else {
+                // Show menu on top level items.
+                tile.intent.putExtra(EXTRA_SHOW_MENU, true);
+                tile.intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                startActivity(tile.intent);
+            }
+        } catch (ActivityNotFoundException e) {
+            Log.w(TAG, "Couldn't find tile " + tile.intent, e);
         }
         return true;
     }
diff --git a/packages/Shell/src/com/android/shell/BugreportProgressService.java b/packages/Shell/src/com/android/shell/BugreportProgressService.java
index c99ec91..587fd6c 100644
--- a/packages/Shell/src/com/android/shell/BugreportProgressService.java
+++ b/packages/Shell/src/com/android/shell/BugreportProgressService.java
@@ -706,7 +706,7 @@
         }
         final File screenshotFile = new File((String) resultMsg.obj);
 
-        final int msgId;
+        final String msg;
         if (taken) {
             info.addScreenshot(screenshotFile);
             if (info.finished) {
@@ -714,14 +714,13 @@
                 info.renameScreenshots(mScreenshotsDir);
                 sendBugreportNotification(mContext, info);
             }
-            msgId = R.string.bugreport_screenshot_taken;
+            msg = mContext.getString(R.string.bugreport_screenshot_taken);
         } else {
             // TODO: try again using Framework APIs instead of relying on screencap.
-            msgId = R.string.bugreport_screenshot_failed;
+            msg = mContext.getString(R.string.bugreport_screenshot_failed);
+            Toast.makeText(mContext, msg, Toast.LENGTH_SHORT).show();
         }
-        final String msg = mContext.getString(msgId);
         Log.d(TAG, msg);
-        Toast.makeText(mContext, msg, Toast.LENGTH_SHORT).show();
     }
 
     /**
diff --git a/packages/SystemUI/Android.mk b/packages/SystemUI/Android.mk
index 88313bb..ad3c26b 100644
--- a/packages/SystemUI/Android.mk
+++ b/packages/SystemUI/Android.mk
@@ -1,10 +1,24 @@
 LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := SystemUI-proto-tags
+
+LOCAL_SRC_FILES := $(call all-proto-files-under,src) \
+    src/com/android/systemui/EventLogTags.logtags
+
+LOCAL_PROTOC_OPTIMIZE_TYPE := nano
+LOCAL_PROTO_JAVA_OUTPUT_PARAMS := optional_field_style=accessors
+
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+# ------------------
+
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_TAGS := optional
 
-LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-proto-files-under,src) $(call all-Iaidl-files-under, src) \
-    src/com/android/systemui/EventLogTags.logtags
+LOCAL_SRC_FILES := $(call all-java-files-under, src) $(call all-Iaidl-files-under, src)
 
 LOCAL_STATIC_JAVA_LIBRARIES := \
     Keyguard \
@@ -13,13 +27,12 @@
     android-support-v7-appcompat \
     android-support-v14-preference \
     android-support-v17-leanback \
-    framework-protos
+    framework-protos \
+    SystemUI-proto-tags
 
 LOCAL_JAVA_LIBRARIES := telephony-common
 
 LOCAL_PACKAGE_NAME := SystemUI
-LOCAL_PROTOC_OPTIMIZE_TYPE := nano
-LOCAL_PROTO_JAVA_OUTPUT_PARAMS := optional_field_style=accessors
 LOCAL_CERTIFICATE := platform
 LOCAL_PRIVILEGED_MODULE := true
 
diff --git a/packages/SystemUI/res/drawable/tv_pip_button_focused.xml b/packages/SystemUI/res/drawable/tv_pip_button_focused.xml
new file mode 100644
index 0000000..5cabb77a
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_button_focused.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <size
+        android:width="36dp"
+        android:height="36dp" />
+    <solid
+        android:color="#4DFFFFFF" />
+</shape>
diff --git a/packages/SystemUI/res/drawable/tv_pip_close_button.xml b/packages/SystemUI/res/drawable/tv_pip_close_button.xml
new file mode 100644
index 0000000..86fda0d
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_close_button.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:constantSize="true">
+    <item android:state_focused="true">
+        <layer-list>
+            <item android:drawable="@drawable/tv_pip_button_focused" />
+            <item android:drawable="@drawable/ic_close_white" />
+        </layer-list>
+    </item>
+    <item android:drawable="@drawable/ic_close_white" />
+</selector>
diff --git a/packages/SystemUI/res/drawable/tv_pip_full_button.xml b/packages/SystemUI/res/drawable/tv_pip_full_button.xml
new file mode 100644
index 0000000..332c669
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_full_button.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:constantSize="true">
+    <item android:state_focused="true">
+        <layer-list>
+            <item android:drawable="@drawable/tv_pip_button_focused" />
+            <item android:drawable="@drawable/ic_fullscreen_white_24dp" />
+        </layer-list>
+    </item>
+    <item android:drawable="@drawable/ic_fullscreen_white_24dp" />
+</selector>
diff --git a/packages/SystemUI/res/drawable/tv_pip_outline.xml b/packages/SystemUI/res/drawable/tv_pip_outline.xml
new file mode 100644
index 0000000..c84438c
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_outline.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <stroke android:width="2dp" android:color="#EEEEEE" />
+</shape>
diff --git a/packages/SystemUI/res/drawable/tv_pip_pause_button.xml b/packages/SystemUI/res/drawable/tv_pip_pause_button.xml
new file mode 100644
index 0000000..d277b07
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_pause_button.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:constantSize="true">
+    <item android:state_focused="true">
+        <layer-list>
+            <item android:drawable="@drawable/tv_pip_button_focused" />
+            <item android:drawable="@drawable/ic_pause_white_24dp" />
+        </layer-list>
+    </item>
+    <item android:drawable="@drawable/ic_pause_white_24dp" />
+</selector>
diff --git a/packages/SystemUI/res/layout/qs_panel.xml b/packages/SystemUI/res/layout/qs_panel.xml
index 3ee2475..994d3c9 100644
--- a/packages/SystemUI/res/layout/qs_panel.xml
+++ b/packages/SystemUI/res/layout/qs_panel.xml
@@ -28,9 +28,7 @@
             android:layout_marginTop="@dimen/status_bar_header_height"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:paddingBottom="8dp"
-            android:clipToPadding="false"
-            android:clipChildren="false" />
+            android:paddingBottom="8dp" />
 
     <include layout="@layout/quick_status_bar_expanded_header" />
 
diff --git a/packages/SystemUI/res/layout/recents_task_view_header.xml b/packages/SystemUI/res/layout/recents_task_view_header.xml
index 2e41561..fa65758 100644
--- a/packages/SystemUI/res/layout/recents_task_view_header.xml
+++ b/packages/SystemUI/res/layout/recents_task_view_header.xml
@@ -30,21 +30,41 @@
         android:paddingBottom="8dp"
         android:paddingStart="12dp"
         android:paddingEnd="16dp" />
-    <TextView
-        android:id="@+id/title"
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center_vertical|start"
         android:layout_marginStart="56dp"
-        android:layout_marginEnd="112dp"
-        android:textSize="16sp"
-        android:textColor="#ffffffff"
-        android:text="@string/recents_empty_message"
-        android:fontFamily="sans-serif-medium"
-        android:singleLine="true"
-        android:maxLines="2"
-        android:ellipsize="marquee"
-        android:fadingEdge="horizontal" />
+        android:layout_marginEnd="56dp"
+        android:orientation="vertical">
+        <TextView
+            android:id="@+id/title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="start"
+            android:textSize="16sp"
+            android:textColor="#ffffffff"
+            android:text="@string/recents_empty_message"
+            android:fontFamily="sans-serif-medium"
+            android:singleLine="true"
+            android:maxLines="1"
+            android:ellipsize="marquee"
+            android:fadingEdge="horizontal" />
+        <TextView
+            android:id="@+id/sub_title"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="start"
+            android:textSize="11sp"
+            android:textColor="#ffffffff"
+            android:text="@string/recents_launch_non_dockable_task_label"
+            android:fontFamily="sans-serif-medium"
+            android:singleLine="true"
+            android:maxLines="1"
+            android:ellipsize="marquee"
+            android:fadingEdge="horizontal"
+            android:visibility="gone" />
+    </LinearLayout>
     <com.android.systemui.recents.views.FixedSizeImageView
         android:id="@+id/move_task"
         android:layout_width="@dimen/recents_task_view_header_button_width"
diff --git a/packages/SystemUI/res/layout/tv_pip_menu.xml b/packages/SystemUI/res/layout/tv_pip_menu.xml
index 3562c644..0b98d0e 100644
--- a/packages/SystemUI/res/layout/tv_pip_menu.xml
+++ b/packages/SystemUI/res/layout/tv_pip_menu.xml
@@ -18,36 +18,94 @@
 -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
-    android:layout_width="wrap_content"
+    android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:layout_gravity="end"
-    android:paddingStart="10dp"
-    android:paddingEnd="10dp"
-    android:background="#88FFFFFF"
-    android:gravity="center_vertical" >
+    android:orientation="horizontal"
+    android:paddingTop="350dp"
+    android:background="#CC000000"
+    android:gravity="top|center_horizontal"
+    android:clipChildren="false">
 
-    <Button android:id="@+id/full"
-        android:layout_width="match_parent"
+    <LinearLayout
+        android:layout_width="34dp"
         android:layout_height="wrap_content"
-        android:layout_gravity="center_vertical"
-        android:text="@string/pip_fullscreen"
-        android:textSize="10sp"
-        android:focusable="true" />
+        android:layout_marginEnd="3dp"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:clipChildren="false">
 
-    <Button android:id="@+id/exit"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center_vertical"
-        android:text="@string/pip_exit"
-        android:textSize="10sp"
-        android:focusable="true" />
+        <ImageView android:id="@+id/full"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:focusable="true"
+            android:src="@drawable/tv_pip_full_button" />
 
-    <Button android:id="@+id/cancel"
-        android:layout_width="match_parent"
+        <TextView android:id="@+id/full_desc"
+            android:layout_width="100dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="3dp"
+            android:gravity="center"
+            android:visibility="invisible"
+            android:text="@string/pip_fullscreen"
+            android:fontFamily="sans-serif"
+            android:textSize="12sp"
+            android:textColor="#EEEEEE"
+            android:clipChildren="false" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="34dp"
         android:layout_height="wrap_content"
-        android:layout_gravity="center_vertical"
-        android:text="@string/pip_cancel"
-        android:textSize="10sp"
-        android:focusable="true" />
+        android:layout_marginStart="3dp"
+        android:layout_marginEnd="3dp"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:visibility="gone"
+        android:clipChildren="false">
+
+        <ImageView android:id="@+id/play_pause"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:focusable="true"
+            android:src="@drawable/tv_pip_pause_button" />
+
+        <TextView android:id="@+id/play_pause_desc"
+            android:layout_width="100dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="3dp"
+            android:gravity="center"
+            android:visibility="invisible"
+            android:text="@string/pip_pause"
+            android:fontFamily="sans-serif"
+            android:textSize="12sp"
+            android:textColor="#EEEEEE"
+            android:clipChildren="false" />
+    </LinearLayout>
+
+    <LinearLayout
+        android:layout_width="34dp"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="3dp"
+        android:orientation="vertical"
+        android:gravity="center"
+        android:clipChildren="false">
+
+        <ImageView android:id="@+id/close"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:focusable="true"
+            android:src="@drawable/tv_pip_close_button" />
+
+        <TextView android:id="@+id/close_desc"
+            android:layout_width="100dp"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="3dp"
+            android:gravity="center"
+            android:visibility="invisible"
+            android:text="@string/pip_close"
+            android:fontFamily="sans-serif"
+            android:textSize="12sp"
+            android:textColor="#EEEEEE"
+            android:clipChildren="false" />
+    </LinearLayout>
 </LinearLayout>
diff --git a/packages/SystemUI/res/layout/tv_pip_onboarding.xml b/packages/SystemUI/res/layout/tv_pip_onboarding.xml
index ef39555..f031bb4 100644
--- a/packages/SystemUI/res/layout/tv_pip_onboarding.xml
+++ b/packages/SystemUI/res/layout/tv_pip_onboarding.xml
@@ -18,34 +18,43 @@
 -->
 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/pip_onboarding"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:background="#C00288D1"
-    android:gravity="center"
-    android:orientation="vertical" >
+    android:gravity="top|center_horizontal"
+    android:orientation="vertical">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:textSize="30sp"
-        android:textColor="@android:color/white"
-        android:text="@string/pip_onboarding_title" />
+    <!-- A rectangle arounds the PIP.
+         Size and positions will be programatically set up
+         to comply with config_defaultPictureInPictureBounds. -->
     <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:src="@drawable/ic_sysbar_home" />
+        android:id="@+id/pip_outline"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:src="@drawable/tv_pip_outline" />
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:padding="30dp"
-        android:textSize="13sp"
-        android:textColor="@android:color/white"
+        android:layout_marginTop="24dp"
+        android:fontFamily="sans-serif"
+        android:textSize="16sp"
+        android:textColor="#EEEEEE"
+        android:lineSpacingMultiplier="1.28"
         android:text="@string/pip_onboarding_description" />
     <Button
         android:id="@+id/close"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:textSize="15sp"
+        android:layout_height="36dp"
+        android:layout_marginTop="24dp"
+        android:gravity="center"
+        android:paddingStart="24dp"
+        android:paddingEnd="24dp"
+        android:fontFamily="sans-serif-condensed"
+        android:textSize="16sp"
+        android:textColor="#026089"
         android:textAllCaps="true"
-        android:text="@string/pip_onboarding_button" />
+        android:text="@string/pip_onboarding_button"
+        android:background="#EEEEEE"
+        android:elevation="4dp" />
 </LinearLayout>
diff --git a/packages/SystemUI/res/values-sw600dp/styles.xml b/packages/SystemUI/res/values-sw600dp/styles.xml
index 4d7d6b5..791d761 100644
--- a/packages/SystemUI/res/values-sw600dp/styles.xml
+++ b/packages/SystemUI/res/values-sw600dp/styles.xml
@@ -16,7 +16,7 @@
 
 <resources xmlns:android="http://schemas.android.com/apk/res/android">
     <style name="BrightnessDialogContainer" parent="@style/BaseBrightnessDialogContainer">
-        <item name="android:layout_width">480dp</item>
+        <item name="android:layout_width">@dimen/standard_notification_panel_width</item>
     </style>
 
     <style name="UserDetailView">
diff --git a/packages/SystemUI/res/values/dimens_tv.xml b/packages/SystemUI/res/values/dimens_tv.xml
index 77605bd..bf32cc7 100644
--- a/packages/SystemUI/res/values/dimens_tv.xml
+++ b/packages/SystemUI/res/values/dimens_tv.xml
@@ -31,4 +31,7 @@
     <!-- Values for focus animation -->
     <dimen name="recents_tv_unselected_item_z">6dp</dimen>
     <dimen name="recents_tv_selected_item_z_delta">10dp</dimen>
-</resources>
\ No newline at end of file
+
+    <!-- Extra space around the PIP and its outline in PIP onboarding activity  -->
+    <dimen name="tv_pip_bounds_space">3dp</dimen>
+</resources>
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index 30c0be8..ac6e3ac 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -722,6 +722,10 @@
     <string name="recents_history_button_label">History</string>
     <!-- Recents: History clear all string. [CHAR LIMIT=NONE] -->
     <string name="recents_history_clear_all_button_label">Clear</string>
+    <!-- Recents: Non-dockable task drag message. [CHAR LIMIT=NONE] -->
+    <string name="recents_drag_non_dockable_task_message">This app does not support multi-window</string>
+    <!-- Recents: Non-dockable task launch sub header. [CHAR LIMIT=NONE] -->
+    <string name="recents_launch_non_dockable_task_label">App does not support multi-window</string>
 
     <!-- Recents: MultiStack add stack split horizontal radio button. [CHAR LIMIT=NONE] -->
     <string name="recents_multistack_add_stack_dialog_split_horizontal">Split Horizontal</string>
diff --git a/packages/SystemUI/res/values/strings_tv.xml b/packages/SystemUI/res/values/strings_tv.xml
index 7c4768d..4f382ea 100644
--- a/packages/SystemUI/res/values/strings_tv.xml
+++ b/packages/SystemUI/res/values/strings_tv.xml
@@ -20,7 +20,7 @@
     <!-- Picture-in-Picture menu -->
     <eat-comment />
     <!-- Button to close PIP on PIP UI -->
-    <string name="pip_exit" translatable="false">Close PIP</string>
+    <string name="pip_close" translatable="false">Close PIP</string>
     <!-- Button to move PIP screen to the fullscreen on PIP UI -->
     <string name="pip_fullscreen" translatable="false">Full screen</string>
     <!-- Button to play the current media on PIP UI -->
@@ -34,8 +34,6 @@
 
     <!-- Picture-in-Picture onboarding screen -->
     <eat-comment />
-    <!-- Title for onboarding screen. -->
-    <string name="pip_onboarding_title" translatable="false">Picture-in-picture</string>
     <!-- Description for onboarding screen. -->
     <string name="pip_onboarding_description" translatable="false">Press and hold the HOME\nbutton to close or control it</string>
     <!-- Button to close onboarding screen. -->
diff --git a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
index 0915ee1..2c5cb89 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
@@ -38,7 +38,7 @@
                 if (mPageIndicator == null) return;
                 mPageIndicator.setLocation(position);
                 if (mPageListener != null) {
-                    mPageListener.onPageChanged(position);
+                    mPageListener.onPageChanged(position == 0);
                 }
             }
 
@@ -47,6 +47,9 @@
                     int positionOffsetPixels) {
                 if (mPageIndicator == null) return;
                 mPageIndicator.setLocation(position + positionOffset);
+                if (mPageListener != null) {
+                    mPageListener.onPageChanged(position == 0 && positionOffsetPixels == 0);
+                }
             }
 
             @Override
@@ -57,6 +60,11 @@
     }
 
     @Override
+    public boolean hasOverlappingRendering() {
+        return false;
+    }
+
+    @Override
     protected void onFinishInflate() {
         super.onFinishInflate();
         mPageIndicator = (PageIndicator) findViewById(R.id.page_indicator);
@@ -209,6 +217,6 @@
     };
 
     public interface PageListener {
-        void onPageChanged(int page);
+        void onPageChanged(boolean isFirst);
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
index dc64591..c31bb33 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
@@ -69,11 +69,13 @@
     }
 
     @Override
-    public void onPageChanged(int page) {
-        mOnFirstPage = page == 0;
-        if (!mOnFirstPage) {
+    public void onPageChanged(boolean isFirst) {
+        if (mOnFirstPage == isFirst) return;
+        if (!isFirst) {
+            setPosition(1);
             clearAnimationState();
         }
+        mOnFirstPage = isFirst;
     }
 
     private void updateAnimators() {
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
index abe4c77..4408dbf 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
@@ -183,5 +183,10 @@
             // No resources here.
             return false;
         }
+
+        @Override
+        public boolean hasOverlappingRendering() {
+            return false;
+        }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/TouchAnimator.java b/packages/SystemUI/src/com/android/systemui/qs/TouchAnimator.java
index 94d8524..026dd0e 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/TouchAnimator.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/TouchAnimator.java
@@ -58,7 +58,7 @@
         }
         if (mListener != null) {
             if (mLastT == 0 || mLastT == 1) {
-                if (t != 0) {
+                if (t != mLastT) {
                     mListener.onAnimationStarted();
                 }
             } else if (t == 1) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index c2a6108..c41098f 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -528,17 +528,16 @@
     @Override
     public void onMultiWindowChanged(boolean inMultiWindow) {
         super.onMultiWindowChanged(inMultiWindow);
-        if (!inMultiWindow) {
-            RecentsTaskLoader loader = Recents.getTaskLoader();
-            RecentsTaskLoadPlan.Options launchOpts = new RecentsTaskLoadPlan.Options();
-            launchOpts.loadIcons = false;
-            launchOpts.loadThumbnails = false;
-            launchOpts.onlyLoadForCache = true;
-            RecentsTaskLoadPlan loadPlan = loader.createLoadPlan(this);
-            loader.preloadTasks(loadPlan, -1, false);
-            loader.loadTasks(this, loadPlan, launchOpts);
-            EventBus.getDefault().send(new TaskStackUpdatedEvent(loadPlan.getTaskStack()));
-        }
+        RecentsTaskLoader loader = Recents.getTaskLoader();
+        RecentsTaskLoadPlan.Options launchOpts = new RecentsTaskLoadPlan.Options();
+        launchOpts.loadIcons = false;
+        launchOpts.loadThumbnails = false;
+        launchOpts.onlyLoadForCache = true;
+        RecentsTaskLoadPlan loadPlan = loader.createLoadPlan(this);
+        loader.preloadTasks(loadPlan, -1, false);
+        loader.loadTasks(this, loadPlan, launchOpts);
+        EventBus.getDefault().send(new TaskStackUpdatedEvent(loadPlan.getTaskStack(),
+                inMultiWindow));
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index 8de964b..28b2fae 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -161,10 +161,8 @@
     Handler mHandler;
     TaskStackListenerImpl mTaskStackListener;
     RecentsAppWidgetHost mAppWidgetHost;
-    boolean mBootCompleted;
     boolean mCanReuseTaskStackViews = true;
     boolean mDraggingInRecents;
-    boolean mReloadTasks;
     boolean mLaunchedWhileDocking;
 
     // Task launching
@@ -236,7 +234,6 @@
     }
 
     public void onBootCompleted() {
-        mBootCompleted = true;
         updateHeaderBarLayout(true /* tryAndBindSearchWidget */, null /* stack */);
     }
 
@@ -317,23 +314,21 @@
     }
 
     public void hideRecents(boolean triggeredFromAltTab, boolean triggeredFromHomeKey) {
-        if (mBootCompleted) {
-            if (triggeredFromAltTab && mFastAltTabTrigger.isDozing()) {
-                // The user has released alt-tab before the trigger has run, so just show the next
-                // task immediately
-                showNextTask();
+        if (triggeredFromAltTab && mFastAltTabTrigger.isDozing()) {
+            // The user has released alt-tab before the trigger has run, so just show the next
+            // task immediately
+            showNextTask();
 
-                // Cancel the fast alt-tab trigger
-                mFastAltTabTrigger.stopDozing();
-                mFastAltTabTrigger.resetTrigger();
-                return;
-            }
-
-            // Defer to the activity to handle hiding recents, if it handles it, then it must still
-            // be visible
-            EventBus.getDefault().post(new HideRecentsEvent(triggeredFromAltTab,
-                    triggeredFromHomeKey));
+            // Cancel the fast alt-tab trigger
+            mFastAltTabTrigger.stopDozing();
+            mFastAltTabTrigger.resetTrigger();
+            return;
         }
+
+        // Defer to the activity to handle hiding recents, if it handles it, then it must still
+        // be visible
+        EventBus.getDefault().post(new HideRecentsEvent(triggeredFromAltTab,
+                triggeredFromHomeKey));
     }
 
     public void toggleRecents() {
@@ -347,7 +342,6 @@
         mTriggeredFromAltTab = false;
 
         try {
-            ViewConfiguration viewConfig = ViewConfiguration.get(mContext);
             SystemServicesProxy ssp = Recents.getSystemServices();
             ActivityManager.RunningTaskInfo topTask = ssp.getTopMostTask();
             MutableBoolean isTopTaskHome = new MutableBoolean(true);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/TaskStackUpdatedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/TaskStackUpdatedEvent.java
index f87f6de..0d614e8c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/TaskStackUpdatedEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/activity/TaskStackUpdatedEvent.java
@@ -28,8 +28,10 @@
      * A new TaskStack instance representing the latest stack state.
      */
     public final TaskStack stack;
+    public final boolean inMultiWindow;
 
-    public TaskStackUpdatedEvent(TaskStack stack) {
+    public TaskStackUpdatedEvent(TaskStack stack, boolean inMultiWindow) {
         this.stack = stack;
+        this.inMultiWindow = inMultiWindow;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
index 824231a..6fef8a2 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
@@ -198,8 +198,8 @@
             // Add the task to the stack
             Task task = new Task(taskKey, t.affiliatedTaskId, t.affiliatedTaskColor, icon,
                     thumbnail, title, contentDescription, dismissDescription, activityColor,
-                    backgroundColor, !isStackTask, isLaunchTarget, isSystemApp, t.bounds,
-                    t.taskDescription);
+                    backgroundColor, !isStackTask, isLaunchTarget, isSystemApp, t.isDockable,
+                    t.bounds, t.taskDescription);
 
             allTasks.add(task);
             affiliatedTaskCounts.put(taskKey.id, affiliatedTaskCounts.get(taskKey.id, 0) + 1);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
index 8ed6dd7..e5d4f1b 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
@@ -168,6 +168,8 @@
     public boolean isHistorical;
     @ViewDebug.ExportedProperty(category="recents")
     public boolean isSystemApp;
+    @ViewDebug.ExportedProperty(category="recents")
+    public boolean isDockable;
 
     private ArrayList<TaskCallbacks> mCallbacks = new ArrayList<>();
 
@@ -178,8 +180,8 @@
     public Task(TaskKey key, int affiliationTaskId, int affiliationColor, Drawable icon,
                 Bitmap thumbnail, String title, String contentDescription,
                 String dismissDescription, int colorPrimary, int colorBackground,
-                boolean isHistorical, boolean isLaunchTarget, boolean isSystemApp, Rect bounds,
-                ActivityManager.TaskDescription taskDescription) {
+                boolean isHistorical, boolean isLaunchTarget, boolean isSystemApp,
+                boolean isDockable, Rect bounds, ActivityManager.TaskDescription taskDescription) {
         boolean isInAffiliationGroup = (affiliationTaskId != key.id);
         boolean hasAffiliationGroupColor = isInAffiliationGroup && (affiliationColor != 0);
         this.key = key;
@@ -199,6 +201,7 @@
         this.isLaunchTarget = isLaunchTarget;
         this.isHistorical = isHistorical;
         this.isSystemApp = isSystemApp;
+        this.isDockable = isDockable;
     }
 
     /** Copies the other task. */
@@ -219,6 +222,7 @@
         this.isLaunchTarget = o.isLaunchTarget;
         this.isHistorical = o.isHistorical;
         this.isSystemApp = o.isSystemApp;
+        this.isDockable = o.isDockable;
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
index 2e45627..5dde926 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
@@ -663,8 +663,10 @@
     }
 
     public final void onBusEvent(TaskStackUpdatedEvent event) {
-        mStack.setTasks(event.stack.computeAllTasksList(), true /* notifyStackChanges */);
-        mStack.createAffiliatedGroupings(getContext());
+        if (!event.inMultiWindow) {
+            mStack.setTasks(event.stack.computeAllTasksList(), true /* notifyStackChanges */);
+            mStack.createAffiliatedGroupings(getContext());
+        }
     }
 
     public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
index 016d937..079d7b9 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
@@ -21,7 +21,9 @@
 import android.view.MotionEvent;
 import android.view.ViewConfiguration;
 import android.view.ViewDebug;
+import android.widget.Toast;
 
+import com.android.systemui.R;
 import com.android.systemui.recents.Recents;
 import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.events.EventBus;
@@ -148,11 +150,16 @@
 
         mVisibleDockStates.clear();
         if (!ssp.hasDockedTask() && mRv.getTaskStack().getTaskCount() > 1) {
-            // Add the dock state drop targets (these take priority)
-            TaskStack.DockState[] dockStates = getDockStatesForCurrentOrientation();
-            for (TaskStack.DockState dockState : dockStates) {
-                registerDropTargetForCurrentDrag(dockState);
-                mVisibleDockStates.add(dockState);
+            if (!event.task.isDockable) {
+                Toast.makeText(mRv.getContext(), R.string.recents_drag_non_dockable_task_message,
+                        Toast.LENGTH_SHORT).show();
+            } else {
+                // Add the dock state drop targets (these take priority)
+                TaskStack.DockState[] dockStates = getDockStatesForCurrentOrientation();
+                for (TaskStack.DockState dockState : dockStates) {
+                    registerDropTargetForCurrentDrag(dockState);
+                    mVisibleDockStates.add(dockState);
+                }
             }
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index d71d70f..e1a81c8 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -1573,6 +1573,9 @@
             Task launchTask = mStack.getStackTasks().get(launchTaskIndex);
             EventBus.getDefault().send(new LaunchTaskEvent(getChildViewForTask(launchTask),
                     launchTask, null, INVALID_STACK_ID, false /* screenPinningRequested */));
+
+            MetricsLogger.action(getContext(), MetricsEvent.OVERVIEW_LAUNCH_PREVIOUS_TASK,
+                    launchTask.key.getComponent().toString());
         }
     }
 
@@ -1830,12 +1833,28 @@
     }
 
     public final void onBusEvent(TaskStackUpdatedEvent event) {
-        // Scroll the stack to the front after it has been updated
+        if (!event.inMultiWindow) {
+            // Scroll the stack to the front after it has been updated
+            event.addPostAnimationCallback(new Runnable() {
+                @Override
+                public void run() {
+                    mStackScroller.animateScroll(mLayoutAlgorithm.mMaxScrollP,
+                            null /* postScrollRunnable */);
+                }
+            });
+        }
+        // When the multi-window state changes, rebind all task view headers again to update their
+        // dockable state
         event.addPostAnimationCallback(new Runnable() {
             @Override
             public void run() {
-                mStackScroller.animateScroll(mLayoutAlgorithm.mMaxScrollP,
-                        null /* postScrollRunnable */);
+                List<TaskView> taskViews = getTaskViews();
+                int taskViewCount = taskViews.size();
+                for (int i = 0; i < taskViewCount; i++) {
+                    TaskView tv = taskViews.get(i);
+                    tv.getHeaderView().rebindToTask(tv.getTask(), tv.mTouchExplorationEnabled,
+                            tv.mIsDisabledInSafeMode);
+                }
             }
         });
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
index 0543dd5..05a8527 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
@@ -139,6 +139,7 @@
     // Header views
     ImageView mIconView;
     TextView mTitleView;
+    TextView mSubTitleView;
     ImageView mMoveTaskButton;
     ImageView mDismissButton;
     ViewStub mAppOverlayViewStub;
@@ -237,6 +238,7 @@
         mIconView.setClickable(false);
         mIconView.setOnLongClickListener(this);
         mTitleView = (TextView) findViewById(R.id.title);
+        mSubTitleView = (TextView) findViewById(R.id.sub_title);
         mDismissButton = (ImageView) findViewById(R.id.dismiss_task);
         if (ssp.hasFreeformWorkspaceSupport()) {
             mMoveTaskButton = (ImageView) findViewById(R.id.move_task);
@@ -367,6 +369,7 @@
 
     /** Binds the bar view to the task */
     public void rebindToTask(Task t, boolean touchExplorationEnabled, boolean disabledInSafeMode) {
+        SystemServicesProxy ssp = Recents.getSystemServices();
         mTask = t;
 
         // If an activity icon is defined, then we use that as the primary icon to show in the bar,
@@ -384,6 +387,13 @@
         mTitleView.setContentDescription(t.contentDescription);
         mTitleView.setTextColor(t.useLightOnPrimaryColor ?
                 mTaskBarViewLightTextColor : mTaskBarViewDarkTextColor);
+        if (!t.isDockable && ssp.hasDockedTask()) {
+            mSubTitleView.setVisibility(View.VISIBLE);
+            mSubTitleView.setTextColor(t.useLightOnPrimaryColor ?
+                    mTaskBarViewLightTextColor : mTaskBarViewDarkTextColor);
+        } else {
+            mSubTitleView.setVisibility(View.GONE);
+        }
         mDismissButton.setImageDrawable(t.useLightOnPrimaryColor ?
                 mLightDismissDrawable : mDarkDismissDrawable);
         mDismissButton.setContentDescription(t.dismissDescription);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index afee846..6be9512 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -1142,6 +1142,11 @@
     }
 
     @Override
+    public void toggleSplitScreen() {
+        toggleSplitScreenMode();
+    }
+
+    @Override
     public void preloadRecentApps() {
         int msg = MSG_PRELOAD_RECENT_APPS;
         mHandler.removeMessages(msg);
@@ -1211,6 +1216,13 @@
         }
     };
 
+    /**
+     * Toggle docking the app window
+     *
+     * @return {@code true} if the app window is docked after the toggle, {@code false} otherwise.
+     */
+    protected abstract boolean toggleSplitScreenMode();
+
     /** Proxy for RecentsComponent */
 
     protected void showRecents(boolean triggeredFromAltTab) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
index 3b960ee..6a98488 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/CommandQueue.java
@@ -72,6 +72,7 @@
     private static final int MSG_ADD_QS_TILE                   = 27 << MSG_SHIFT;
     private static final int MSG_REMOVE_QS_TILE                = 28 << MSG_SHIFT;
     private static final int MSG_CLICK_QS_TILE                 = 29 << MSG_SHIFT;
+    private static final int MSG_TOGGLE_APP_SPLIT_SCREEN       = 30 << MSG_SHIFT;
 
     public static final int FLAG_EXCLUDE_NONE = 0;
     public static final int FLAG_EXCLUDE_SEARCH_PANEL = 1 << 0;
@@ -104,6 +105,7 @@
         public void showRecentApps(boolean triggeredFromAltTab);
         public void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHomeKey);
         public void toggleRecentApps();
+        public void toggleSplitScreen();
         public void preloadRecentApps();
         public void toggleKeyboardShortcutsMenu();
         public void cancelPreloadRecentApps();
@@ -223,6 +225,13 @@
         }
     }
 
+    public void toggleSplitScreen() {
+        synchronized (mLock) {
+            mHandler.removeMessages(MSG_TOGGLE_APP_SPLIT_SCREEN);
+            mHandler.obtainMessage(MSG_TOGGLE_APP_SPLIT_SCREEN, 0, 0, null).sendToTarget();
+        }
+    }
+
     public void toggleRecentApps() {
         synchronized (mLock) {
             mHandler.removeMessages(MSG_TOGGLE_RECENT_APPS);
@@ -464,6 +473,9 @@
                 case MSG_CLICK_QS_TILE:
                     mCallbacks.clickTile((ComponentName) msg.obj);
                     break;
+                case MSG_TOGGLE_APP_SPLIT_SCREEN:
+                    mCallbacks.toggleSplitScreen();
+                    break;
             }
         }
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index d25e99b..ac714e7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -1144,31 +1144,42 @@
 
         @Override
         public boolean onLongClick(View v) {
-            if (mRecents != null) {
-                int dockSide = WindowManagerProxy.getInstance().getDockSide();
-                if (dockSide == WindowManager.DOCKED_INVALID) {
-                    Point realSize = new Point();
-                    mContext.getSystemService(DisplayManager.class).getDisplay(Display.DEFAULT_DISPLAY)
-                            .getRealSize(realSize);
-                    Rect initialBounds= new Rect(0, 0, realSize.x, realSize.y);
-                    boolean docked = mRecents.dockTopTask(NavigationBarGestureHelper.DRAG_MODE_NONE,
-                            ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT,
-                            initialBounds);
-                    if (docked) {
-                        MetricsLogger.action(mContext, MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS);
-                        return true;
-                    }
-                } else {
-                    EventBus.getDefault().send(new UndockingTaskEvent());
-                    MetricsLogger.action(mContext, MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS);
-                    return true;
-                }
-
+            if (mRecents == null) {
+                return false;
+            }
+            boolean initiallyDocked = WindowManagerProxy.getInstance().getDockSide()
+                    == WindowManager.DOCKED_INVALID;
+            boolean dockedAtEnd = toggleSplitScreenMode();
+            if (dockedAtEnd != initiallyDocked) {
+                int logAction = dockedAtEnd ? MetricsEvent.ACTION_WINDOW_DOCK_LONGPRESS
+                        : MetricsEvent.ACTION_WINDOW_UNDOCK_LONGPRESS;
+                MetricsLogger.action(mContext, logAction);
+                return true;
             }
             return false;
         }
     };
 
+    @Override
+    protected boolean toggleSplitScreenMode() {
+        if (mRecents == null) {
+            return false;
+        }
+        int dockSide = WindowManagerProxy.getInstance().getDockSide();
+        if (dockSide == WindowManager.DOCKED_INVALID) {
+            Point realSize = new Point();
+            mContext.getSystemService(DisplayManager.class).getDisplay(Display.DEFAULT_DISPLAY)
+                    .getRealSize(realSize);
+            Rect initialBounds= new Rect(0, 0, realSize.x, realSize.y);
+            return mRecents.dockTopTask(NavigationBarGestureHelper.DRAG_MODE_NONE,
+                    ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT,
+                    initialBounds);
+        } else {
+            EventBus.getDefault().send(new UndockingTaskEvent());
+            return false;
+        }
+    }
+
     private final View.OnLongClickListener mLongPressHomeListener
             = new View.OnLongClickListener() {
         @Override
@@ -4089,7 +4100,7 @@
         ExpandableNotificationRow row = null;
         if (expandView instanceof ExpandableNotificationRow) {
             row = (ExpandableNotificationRow) expandView;
-            row.setUserExpanded(true);
+            row.setUserExpanded(true /* userExpanded */, true /* allowChildExpansion */);
         }
         boolean fullShadeNeedsBouncer = !userAllowsPrivateNotificationsInPublic(mCurrentUserId)
                 || !mShowLockscreenNotifications || mFalsingManager.shouldEnforceBouncer();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BrightnessMirrorController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BrightnessMirrorController.java
index 3bd68a9..ab34768 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/BrightnessMirrorController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/BrightnessMirrorController.java
@@ -80,13 +80,13 @@
 
         // Original is slightly larger than the mirror, so make sure to use the center for the
         // positioning.
-        int originalX = mInt2Cache[0] + original.getWidth()/2;
-        int originalY = mInt2Cache[1];
+        int originalX = mInt2Cache[0] + original.getWidth() / 2;
+        int originalY = mInt2Cache[1] + original.getHeight() / 2;
         mBrightnessMirror.setTranslationX(0);
         mBrightnessMirror.setTranslationY(0);
         mBrightnessMirror.getLocationInWindow(mInt2Cache);
-        int mirrorX = mInt2Cache[0] + mBrightnessMirror.getWidth()/2;
-        int mirrorY = mInt2Cache[1];
+        int mirrorX = mInt2Cache[0] + mBrightnessMirror.getWidth() / 2;
+        int mirrorY = mInt2Cache[1] + mBrightnessMirror.getHeight() / 2;
         mBrightnessMirror.setTranslationX(originalX - mirrorX);
         mBrightnessMirror.setTranslationY(originalY - mirrorY);
     }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
index e1f9f3c..340ebb4 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
@@ -1814,8 +1814,12 @@
                 // it will be set once we reach the boundary
                 mMaxOverScroll = 0.0f;
             }
+            int minScrollY = Math.max(0, scrollRange);
+            if (mExpandedInThisMotion) {
+                minScrollY = Math.min(minScrollY, mMaxScrollAfterExpand);
+            }
             mScroller.fling(mScrollX, mOwnScrollY, 1, velocityY, 0, 0, 0,
-                    Math.max(0, scrollRange), 0, Integer.MAX_VALUE / 2);
+                    minScrollY, 0, mExpandedInThisMotion && mOwnScrollY >= 0 ? 0 : Integer.MAX_VALUE / 2);
 
             postInvalidateOnAnimation();
         }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
index 110258c..0ed6ef8 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
@@ -116,6 +116,11 @@
     }
 
     @Override
+    protected boolean toggleSplitScreenMode() {
+        return false;
+    }
+
+    @Override
     public void maybeEscalateHeadsUp() {
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
index ec49256..0925638 100644
--- a/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipManager.java
@@ -424,9 +424,7 @@
         }
         Intent intent = new Intent(mContext, PipMenuActivity.class);
         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        final ActivityOptions options = ActivityOptions.makeBasic();
-        options.setLaunchStackId(PINNED_STACK_ID);
-        mContext.startActivity(intent, options.toBundle());
+        mContext.startActivity(intent);
     }
 
     public void addListener(Listener listener) {
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
index 7e229d4..4171dbc 100644
--- a/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipMenuActivity.java
@@ -33,29 +33,62 @@
     private final PipManager mPipManager = PipManager.getInstance();
     private MediaController mMediaController;
 
+    private View mFullButtonView;
+    private View mFullDescriptionView;
+    private View mPlayPauseButtonView;
+    private View mPlayPauseDescriptionView;
+    private View mCloseButtonView;
+    private View mCloseDescriptionView;
+
     @Override
     protected void onCreate(Bundle bundle) {
         super.onCreate(bundle);
         setContentView(R.layout.tv_pip_menu);
         mPipManager.addListener(this);
-        findViewById(R.id.full).setOnClickListener(new View.OnClickListener() {
+        mFullButtonView = findViewById(R.id.full);
+        mFullDescriptionView = findViewById(R.id.full_desc);
+        mFullButtonView.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 mPipManager.movePipToFullscreen();
+                finish();
             }
         });
-        findViewById(R.id.exit).setOnClickListener(new View.OnClickListener() {
+        mFullButtonView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                mFullDescriptionView.setVisibility(hasFocus ? View.VISIBLE : View.INVISIBLE);
+            }
+        });
+
+        mPlayPauseButtonView = findViewById(R.id.play_pause);
+        mPlayPauseDescriptionView = findViewById(R.id.play_pause_desc);
+        mPlayPauseButtonView.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                // TODO: Implement play/pause.
+            }
+        });
+        mPlayPauseButtonView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                mPlayPauseDescriptionView.setVisibility(hasFocus ? View.VISIBLE : View.INVISIBLE);
+            }
+        });
+
+        mCloseButtonView = findViewById(R.id.close);
+        mCloseDescriptionView = findViewById(R.id.close_desc);
+        mCloseButtonView.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 mPipManager.closePip();
                 finish();
             }
         });
-        findViewById(R.id.cancel).setOnClickListener(new View.OnClickListener() {
+        mCloseButtonView.setOnFocusChangeListener(new View.OnFocusChangeListener() {
             @Override
-            public void onClick(View v) {
-                mPipManager.resizePinnedStack(PipManager.STATE_PIP_OVERLAY);
-                finish();
+            public void onFocusChange(View v, boolean hasFocus) {
+                mCloseDescriptionView.setVisibility(hasFocus ? View.VISIBLE : View.INVISIBLE);
             }
         });
     }
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipOnboardingActivity.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOnboardingActivity.java
index 6f71c92..e5c07d2 100644
--- a/packages/SystemUI/src/com/android/systemui/tv/pip/PipOnboardingActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOnboardingActivity.java
@@ -17,9 +17,11 @@
 package com.android.systemui.tv.pip;
 
 import android.app.Activity;
+import android.graphics.Rect;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
+import android.view.ViewGroup.LayoutParams;
 
 import com.android.systemui.R;
 
@@ -33,6 +35,8 @@
     protected void onCreate(Bundle bundle) {
         super.onCreate(bundle);
         setContentView(R.layout.tv_pip_onboarding);
+        View pipOnboardingView = findViewById(R.id.pip_onboarding);
+        View pipOutlineView = findViewById(R.id.pip_outline);
         mPipManager.addListener(this);
         findViewById(R.id.close).setOnClickListener(new View.OnClickListener() {
             @Override
@@ -40,6 +44,20 @@
                 finish();
             }
         });
+
+        int pipOutlineSpace = getResources().getDimensionPixelSize(R.dimen.tv_pip_bounds_space);
+        int screenWidth = getResources().getDisplayMetrics().widthPixels;
+        Rect pipBounds = mPipManager.getPipBounds();
+        pipOnboardingView.setPadding(
+                pipBounds.left - pipOutlineSpace,
+                pipBounds.top - pipOutlineSpace,
+                screenWidth - pipBounds.right - pipOutlineSpace, 0);
+
+        // Set width and height for outline view to enclose the PIP.
+        LayoutParams lp = pipOutlineView.getLayoutParams();
+        lp.width = pipBounds.width() + pipOutlineSpace * 2;
+        lp.height = pipBounds.height() + pipOutlineSpace * 2;
+        pipOutlineView.setLayoutParams(lp);
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
index 6f24691..cfeab6d 100644
--- a/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/tv/pip/PipOverlayActivity.java
@@ -19,8 +19,8 @@
 import android.app.Activity;
 import android.os.Bundle;
 import android.os.Handler;
-
 import android.view.View;
+
 import com.android.systemui.R;
 
 /**
diff --git a/packages/SystemUI/tests/Android.mk b/packages/SystemUI/tests/Android.mk
index 964688b..c9c5805 100644
--- a/packages/SystemUI/tests/Android.mk
+++ b/packages/SystemUI/tests/Android.mk
@@ -29,9 +29,7 @@
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src) \
     $(call all-Iaidl-files-under, src) \
-    $(call all-java-files-under, ../src) \
-    $(call all-proto-files-under, ../src) \
-    src/com/android/systemui/EventLogTags.logtags
+    $(call all-java-files-under, ../src)
 
 LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res \
     frameworks/support/v7/preference/res \
@@ -53,7 +51,8 @@
     android-support-v7-preference \
     android-support-v7-appcompat \
     android-support-v14-preference \
-    android-support-v17-leanback
+    android-support-v17-leanback \
+    SystemUI-proto-tags
 
 # sign this with platform cert, so this test is allowed to inject key events into
 # UI it doesn't own. This is necessary to allow screenshots to be taken
diff --git a/packages/SystemUI/tests/src/com/android/systemui/EventLogTags.logtags b/packages/SystemUI/tests/src/com/android/systemui/EventLogTags.logtags
deleted file mode 120000
index 2f243d7..0000000
--- a/packages/SystemUI/tests/src/com/android/systemui/EventLogTags.logtags
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../src/com/android/systemui/EventLogTags.logtags
\ No newline at end of file
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 49972d6..568edab 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -447,5 +447,8 @@
 
     // Logs the action the user takes when an app ANR'd.
     ACTION_APP_ANR = 317;
+
+    // Logged when a user double taps the overview button to launch the previous task
+    OVERVIEW_LAUNCH_PREVIOUS_TASK = 318;
   }
 }
diff --git a/services/accessibility/Android.mk b/services/accessibility/Android.mk
index d98fc28..ce89aa7 100644
--- a/services/accessibility/Android.mk
+++ b/services/accessibility/Android.mk
@@ -7,4 +7,6 @@
 LOCAL_SRC_FILES += \
       $(call all-java-files-under,java)
 
+LOCAL_JAVA_LIBRARIES := services.core
+
 include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 0dbc5be..2b682c5 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -94,6 +94,7 @@
 import com.android.internal.statusbar.IStatusBarService;
 import com.android.server.LocalServices;
 
+import com.android.server.statusbar.StatusBarManagerInternal;
 import org.xmlpull.v1.XmlPullParserException;
 
 import java.io.FileDescriptor;
@@ -2778,6 +2779,9 @@
                     case AccessibilityService.GLOBAL_ACTION_POWER_DIALOG: {
                         showGlobalActions();
                     } return true;
+                    case AccessibilityService.GLOBAL_ACTION_TOGGLE_SPLIT_SCREEN: {
+                        toggleSplitScreen();
+                    } return true;
                 }
                 return false;
             } finally {
@@ -3249,6 +3253,10 @@
             mWindowManagerService.showGlobalActions();
         }
 
+        private void toggleSplitScreen() {
+            LocalServices.getService(StatusBarManagerInternal.class).toggleSplitScreen();
+        }
+
         private IAccessibilityInteractionConnection getConnectionLocked(int windowId) {
             if (DEBUG) {
                 Slog.i(LOG_TAG, "Trying to get interaction connection to windowId: " + windowId);
@@ -3465,11 +3473,14 @@
                 case WindowManager.LayoutParams.TYPE_SYSTEM_ALERT:
                 case WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG:
                 case WindowManager.LayoutParams.TYPE_SYSTEM_ERROR:
-                case WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY:
-                case WindowManager.LayoutParams.TYPE_DOCK_DIVIDER: {
+                case WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY: {
                     return AccessibilityWindowInfo.TYPE_SYSTEM;
                 }
 
+                case WindowManager.LayoutParams.TYPE_DOCK_DIVIDER: {
+                    return AccessibilityWindowInfo.TYPE_SPLIT_SCREEN_DIVIDER;
+                }
+
                 case WindowManager.LayoutParams.TYPE_ACCESSIBILITY_OVERLAY: {
                     return AccessibilityWindowInfo.TYPE_ACCESSIBILITY_OVERLAY;
                 }
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index d14364d..caeb0c6 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -660,12 +660,7 @@
         long identityToken = clearCallingIdentity();
         try {
             UserAccounts accounts = getUserAccounts(userId);
-            synchronized (accounts.cacheLock) {
-                if (!accountExistsCacheLocked(accounts, account)) {
-                    return null;
-                }
-                return readUserDataInternalLocked(accounts, account, key);
-            }
+            return readUserDataInternal(accounts, account, key);
         } finally {
             restoreCallingIdentity(identityToken);
         }
@@ -1717,58 +1712,44 @@
         long identityToken = clearCallingIdentity();
         try {
             UserAccounts accounts = getUserAccounts(userId);
-            synchronized (accounts.cacheLock) {
-                if (!accountExistsCacheLocked(accounts, account)) {
-                    return;
-                }
-                setUserdataInternalLocked(accounts, account, key, value);
-            }
+            setUserdataInternal(accounts, account, key, value);
         } finally {
             restoreCallingIdentity(identityToken);
         }
     }
 
-    private boolean accountExistsCacheLocked(UserAccounts accounts, Account account) {
-        if (accounts.accountCache.containsKey(account.type)) {
-            for (Account acc : accounts.accountCache.get(account.type)) {
-                if (acc.name.equals(account.name)) {
-                    return true;
-                }
-            }
-        }
-        return false;
-    }
-
-    private void setUserdataInternalLocked(UserAccounts accounts, Account account, String key,
+    private void setUserdataInternal(UserAccounts accounts, Account account, String key,
             String value) {
         if (account == null || key == null) {
             return;
         }
-        final SQLiteDatabase db = accounts.openHelper.getWritableDatabase();
-        db.beginTransaction();
-        try {
-            long accountId = getAccountIdLocked(db, account);
-            if (accountId < 0) {
-                return;
-            }
-            long extrasId = getExtrasIdLocked(db, accountId, key);
-            if (extrasId < 0) {
-                extrasId = insertExtraLocked(db, accountId, key, value);
-                if (extrasId < 0) {
+        synchronized (accounts.cacheLock) {
+            final SQLiteDatabase db = accounts.openHelper.getWritableDatabase();
+            db.beginTransaction();
+            try {
+                long accountId = getAccountIdLocked(db, account);
+                if (accountId < 0) {
                     return;
                 }
-            } else {
-                ContentValues values = new ContentValues();
-                values.put(EXTRAS_VALUE, value);
-                if (1 != db.update(TABLE_EXTRAS, values, EXTRAS_ID + "=" + extrasId, null)) {
-                    return;
-                }
+                long extrasId = getExtrasIdLocked(db, accountId, key);
+                if (extrasId < 0 ) {
+                    extrasId = insertExtraLocked(db, accountId, key, value);
+                    if (extrasId < 0) {
+                        return;
+                    }
+                } else {
+                    ContentValues values = new ContentValues();
+                    values.put(EXTRAS_VALUE, value);
+                    if (1 != db.update(TABLE_EXTRAS, values, EXTRAS_ID + "=" + extrasId, null)) {
+                        return;
+                    }
 
+                }
+                writeUserDataIntoCacheLocked(accounts, db, account, key, value);
+                db.setTransactionSuccessful();
+            } finally {
+                db.endTransaction();
             }
-            writeUserDataIntoCacheLocked(accounts, db, account, key, value);
-            db.setTransactionSuccessful();
-        } finally {
-            db.endTransaction();
         }
     }
 
@@ -4803,16 +4784,17 @@
         }
     }
 
-    protected String readUserDataInternalLocked(
-            UserAccounts accounts, Account account, String key) {
-        HashMap<String, String> userDataForAccount = accounts.userDataCache.get(account);
-        if (userDataForAccount == null) {
-            // need to populate the cache for this account
-            final SQLiteDatabase db = accounts.openHelper.getReadableDatabase();
-            userDataForAccount = readUserDataForAccountFromDatabaseLocked(db, account);
-            accounts.userDataCache.put(account, userDataForAccount);
+    protected String readUserDataInternal(UserAccounts accounts, Account account, String key) {
+        synchronized (accounts.cacheLock) {
+            HashMap<String, String> userDataForAccount = accounts.userDataCache.get(account);
+            if (userDataForAccount == null) {
+                // need to populate the cache for this account
+                final SQLiteDatabase db = accounts.openHelper.getReadableDatabase();
+                userDataForAccount = readUserDataForAccountFromDatabaseLocked(db, account);
+                accounts.userDataCache.put(account, userDataForAccount);
+            }
+            return userDataForAccount.get(key);
         }
-        return userDataForAccount.get(key);
     }
 
     protected HashMap<String, String> readUserDataForAccountFromDatabaseLocked(
diff --git a/services/core/java/com/android/server/job/JobSchedulerService.java b/services/core/java/com/android/server/job/JobSchedulerService.java
index 536c75e..4bf77d3 100644
--- a/services/core/java/com/android/server/job/JobSchedulerService.java
+++ b/services/core/java/com/android/server/job/JobSchedulerService.java
@@ -1146,7 +1146,8 @@
             final ComponentName service = job.getService();
             try {
                 ServiceInfo si = pm.getServiceInfo(service,
-                        PackageManager.MATCH_DEBUG_TRIAGED_MISSING, UserHandle.getUserId(uid));
+                        PackageManager.MATCH_ENCRYPTION_AWARE_AND_UNAWARE,
+                        UserHandle.getUserId(uid));
                 if (si == null) {
                     throw new IllegalArgumentException("No such service " + service);
                 }
diff --git a/services/core/java/com/android/server/pm/Settings.java b/services/core/java/com/android/server/pm/Settings.java
index dd13809..1652185 100644
--- a/services/core/java/com/android/server/pm/Settings.java
+++ b/services/core/java/com/android/server/pm/Settings.java
@@ -2387,10 +2387,7 @@
             if (DEBUG_KERNEL) Slog.d(TAG, "Dropping mapping " + name);
 
             mKernelMapping.remove(name);
-
-            final File dir = new File(mKernelMappingFilename, name);
-            FileUtils.deleteContents(dir);
-            dir.delete();
+            new File(mKernelMappingFilename, name).delete();
         }
     }
 
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
index cbbcdae..6bda4ed 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerInternal.java
@@ -33,4 +33,5 @@
     void topAppWindowChanged(boolean menuVisible);
     void setSystemUiVisibility(int vis, int fullscreenStackVis, int dockedStackVis, int mask,
             Rect fullscreenBounds, Rect dockedBounds, String cause);
+    void toggleSplitScreen();
 }
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index 6eab8d4..d24e1af 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -204,6 +204,16 @@
             StatusBarManagerService.this.setSystemUiVisibility(vis, fullscreenStackVis,
                     dockedStackVis, mask, fullscreenBounds, dockedBounds, cause);
         }
+
+        @Override
+        public void toggleSplitScreen() {
+            enforceStatusBarService();
+            if (mBar != null) {
+                try {
+                    mBar.toggleSplitScreen();
+                } catch (RemoteException ex) {}
+            }
+        }
     };
 
     // ================================================================================
diff --git a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
index e39445a..c97323c 100644
--- a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
+++ b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
@@ -29,10 +29,11 @@
 #include "android_runtime/Log.h"
 
 #include <arpa/inet.h>
-#include <string.h>
-#include <pthread.h>
+#include <limits>
 #include <linux/in.h>
 #include <linux/in6.h>
+#include <pthread.h>
+#include <string.h>
 
 static jobject mCallbacksObj = NULL;
 
@@ -1090,11 +1091,37 @@
         if (flags & (flag)) object.callSetter("set" # setter, (value))
 
 static jobject translate_gps_clock(JNIEnv* env, GpsClock* clock) {
+    static uint32_t discontinuity_count_to_handle_old_lock_type = 0;
     JavaObject object(env, "android/location/GnssClock");
     GpsClockFlags flags = clock->flags;
 
     SET_IF(GNSS_CLOCK_HAS_LEAP_SECOND, LeapSecond, clock->leap_second);
-    SET(Type, clock->type);
+
+    // GnssClock only supports the more effective HW_CLOCK type, so type
+    // handling and documentation complexity has been removed.  To convert the
+    // old GPS_CLOCK types (active only in a limited number of older devices),
+    // the GPS time information is handled as an always discontinuous HW clock,
+    // with the GPS time information put into the full_bias_ns instead - so that
+    // time_ns + full_bias_ns = local estimate of GPS time (as remains true, in
+    // the new GnssClock struct.)
+    switch (clock->type) {
+      case GPS_CLOCK_TYPE_UNKNOWN:
+        // Clock type unsupported.
+        ALOGE("Unknown clock type provided.");
+        break;
+      case GPS_CLOCK_TYPE_LOCAL_HW_TIME:
+        // Already local hardware time. No need to do anything.
+        break;
+      case GPS_CLOCK_TYPE_GPS_TIME:
+        // GPS time, need to convert.
+        flags |= GNSS_CLOCK_HAS_FULL_BIAS;
+        clock->full_bias_ns = clock->time_ns;
+        clock->time_ns = 0;
+        SET(HardwareClockDiscontinuityCount,
+            discontinuity_count_to_handle_old_lock_type++);
+        break;
+    }
+
     SET(TimeInNs, clock->time_ns);
     SET_IF(GNSS_CLOCK_HAS_TIME_UNCERTAINTY,
            TimeUncertaintyInNs,
diff --git a/telephony/java/com/android/ims/ImsReasonInfo.java b/telephony/java/com/android/ims/ImsReasonInfo.java
index 4aa5b98..558c1dc 100644
--- a/telephony/java/com/android/ims/ImsReasonInfo.java
+++ b/telephony/java/com/android/ims/ImsReasonInfo.java
@@ -241,6 +241,16 @@
     public static final int CODE_ANSWERED_ELSEWHERE = 1014;
 
     /**
+     * Call pull request failure from the network.
+     */
+    public static final int CODE_CALL_PULL_OUT_OF_SYNC = 1015;
+
+    /**
+     * Call ended due to being pulled onto another device.
+     */
+    public static final int CODE_CALL_END_CAUSE_CALL_PULL = 1016;
+
+    /**
      * Supplementary services (HOLD/RESUME) failure error codes.
      * Values for Supplemetary services failure - Failed, Cancelled and Re-Invite collision.
      */
diff --git a/tests/AppLaunch/src/com/android/tests/applaunch/AppLaunch.java b/tests/AppLaunch/src/com/android/tests/applaunch/AppLaunch.java
index 8b8d604..4bed941 100644
--- a/tests/AppLaunch/src/com/android/tests/applaunch/AppLaunch.java
+++ b/tests/AppLaunch/src/com/android/tests/applaunch/AppLaunch.java
@@ -60,6 +60,8 @@
     // optional parameter: comma separated list of required account types before proceeding
     // with the app launch
     private static final String KEY_REQUIRED_ACCOUNTS = "required_accounts";
+    private static final String WEARABLE_ACTION_GOOGLE =
+            "com.google.android.wearable.action.GOOGLE";
     private static final int INITIAL_LAUNCH_IDLE_TIMEOUT = 7500; //7.5s to allow app to idle
     private static final int POST_LAUNCH_IDLE_TIMEOUT = 750; //750ms idle for non initial launches
     private static final int BETWEEN_LAUNCH_SLEEP_TIMEOUT = 2000; //2s between launching apps
@@ -183,6 +185,13 @@
         Intent intentToResolve = new Intent(Intent.ACTION_MAIN);
         intentToResolve.addCategory(Intent.CATEGORY_LAUNCHER);
         List<ResolveInfo> ris = pm.queryIntentActivities(intentToResolve, 0);
+        resolveLoop(ris, intentToResolve, pm);
+        intentToResolve = new Intent(WEARABLE_ACTION_GOOGLE);
+        ris = pm.queryIntentActivities(intentToResolve, 0);
+        resolveLoop(ris, intentToResolve, pm);
+    }
+
+    private void resolveLoop(List<ResolveInfo> ris, Intent intentToResolve, PackageManager pm) {
         if (ris == null || ris.isEmpty()) {
             Log.i(TAG, "Could not find any apps");
         } else {
diff --git a/tests/UiBench/res/layout/activity_transition.xml b/tests/UiBench/res/layout/activity_transition.xml
index d4c6610..4556b02 100644
--- a/tests/UiBench/res/layout/activity_transition.xml
+++ b/tests/UiBench/res/layout/activity_transition.xml
@@ -15,6 +15,7 @@
   ~ limitations under the License
   -->
 <GridLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/transition_grid_layout"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:clipChildren="true"
@@ -25,8 +26,6 @@
         android:layout_height="wrap_content"
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
-        android:layout_column="0"
-        android:layout_row="0"
         android:src="@drawable/ducky"
         android:onClick="clicked"
         android:transitionName="ducky"/>
@@ -36,8 +35,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/woot"
-        android:layout_column="1"
-        android:layout_row="0"
         android:onClick="clicked"
         android:transitionName="woot"/>
     <ImageView
@@ -46,8 +43,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/ball"
-        android:layout_column="0"
-        android:layout_row="1"
         android:onClick="clicked"
         android:transitionName="ball"/>
     <ImageView
@@ -56,8 +51,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/block"
-        android:layout_column="1"
-        android:layout_row="1"
         android:onClick="clicked"
         android:transitionName="block"/>
     <ImageView
@@ -66,8 +59,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/jellies"
-        android:layout_column="0"
-        android:layout_row="2"
         android:onClick="clicked"
         android:transitionName="jellies"/>
     <ImageView
@@ -76,8 +67,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/mug"
-        android:layout_column="1"
-        android:layout_row="2"
         android:onClick="clicked"
         android:transitionName="mug"/>
     <ImageView
@@ -86,8 +75,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/pencil"
-        android:layout_column="0"
-        android:layout_row="3"
         android:onClick="clicked"
         android:transitionName="pencil"/>
     <ImageView
@@ -96,8 +83,6 @@
         android:layout_width="wrap_content"
         android:scaleType="centerCrop"
         android:src="@drawable/scissors"
-        android:layout_column="1"
-        android:layout_row="3"
         android:onClick="clicked"
         android:transitionName="scissors"/>
 </GridLayout>
\ No newline at end of file
diff --git a/tests/UiBench/src/com/android/test/uibench/ActivityTransition.java b/tests/UiBench/src/com/android/test/uibench/ActivityTransition.java
index 1106a13..0a069c2 100644
--- a/tests/UiBench/src/com/android/test/uibench/ActivityTransition.java
+++ b/tests/UiBench/src/com/android/test/uibench/ActivityTransition.java
@@ -18,11 +18,13 @@
 import android.app.ActivityOptions;
 import android.app.SharedElementCallback;
 import android.content.Intent;
+import android.content.res.Configuration;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.os.Bundle;
 import android.support.v7.app.AppCompatActivity;
 import android.view.View;
+import android.widget.GridLayout;
 import android.widget.ImageView;
 
 import java.util.List;
@@ -90,6 +92,13 @@
         getWindow().setBackgroundDrawable(new ColorDrawable(Color.BLACK));
         setContentView(R.layout.activity_transition);
         setupHero();
+
+        // Ensure that all images are visible regardless of orientation.
+        GridLayout gridLayout = (GridLayout) findViewById(R.id.transition_grid_layout);
+        boolean isPortrait =
+                getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT;
+        gridLayout.setRowCount(isPortrait ? 4 : 2);
+        gridLayout.setColumnCount(isPortrait ? 2 : 4);
     }
 
     private void setupHero() {