Merge "Return null value if getActiveAdminUncheckedLocked returns null." into nyc-dev
diff --git a/api/current.txt b/api/current.txt
index c416044..6a1bb02 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -416,9 +416,11 @@
     field public static final int contentAuthority = 16843408; // 0x1010290
     field public static final int contentDescription = 16843379; // 0x1010273
     field public static final int contentInsetEnd = 16843860; // 0x1010454
+    field public static final int contentInsetEndWithActions = 16844070; // 0x1010526
     field public static final int contentInsetLeft = 16843861; // 0x1010455
     field public static final int contentInsetRight = 16843862; // 0x1010456
     field public static final int contentInsetStart = 16843859; // 0x1010453
+    field public static final int contentInsetStartWithNavigation = 16844069; // 0x1010525
     field public static final int contextClickable = 16844007; // 0x10104e7
     field public static final int contextPopupMenuStyle = 16844034; // 0x1010502
     field public static final int controlX1 = 16843772; // 0x10103fc
@@ -3423,7 +3425,7 @@
     method public boolean dispatchTouchEvent(android.view.MotionEvent);
     method public boolean dispatchTrackballEvent(android.view.MotionEvent);
     method public void dump(java.lang.String, java.io.FileDescriptor, java.io.PrintWriter, java.lang.String[]);
-    method public void enterPictureInPicture();
+    method public void enterPictureInPictureMode();
     method public android.view.View findViewById(int);
     method public void finish();
     method public void finishActivity(int);
@@ -3463,15 +3465,16 @@
     method public android.view.Window getWindow();
     method public android.view.WindowManager getWindowManager();
     method public boolean hasWindowFocus();
-    method public boolean inMultiWindow();
-    method public boolean inPictureInPicture();
     method public void invalidateOptionsMenu();
     method public boolean isChangingConfigurations();
     method public final boolean isChild();
     method public boolean isDestroyed();
     method public boolean isFinishing();
     method public boolean isImmersive();
+    method public boolean isInMultiWindowMode();
+    method public boolean isInPictureInPictureMode();
     method public boolean isLocalVoiceInteractionSupported();
+    method public boolean isOverlayWithDecorCaptionEnabled();
     method public boolean isTaskRoot();
     method public boolean isVoiceInteraction();
     method public boolean isVoiceInteractionRoot();
@@ -3518,7 +3521,7 @@
     method public void onLowMemory();
     method public boolean onMenuItemSelected(int, android.view.MenuItem);
     method public boolean onMenuOpened(int, android.view.Menu);
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onNavigateUp();
     method public boolean onNavigateUpFromChild(android.app.Activity);
     method protected void onNewIntent(android.content.Intent);
@@ -3526,7 +3529,7 @@
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method protected void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method protected void onPostCreate(android.os.Bundle);
     method public void onPostCreate(android.os.Bundle, android.os.PersistableBundle);
     method protected void onPostResume();
@@ -3564,7 +3567,6 @@
     method public android.view.ActionMode onWindowStartingActionMode(android.view.ActionMode.Callback, int);
     method public void openContextMenu(android.view.View);
     method public void openOptionsMenu();
-    method public void overlayWithDecorCaption(boolean);
     method public void overridePendingTransition(int, int);
     method public void postponeEnterTransition();
     method public void recreate();
@@ -3593,6 +3595,7 @@
     method public void setImmersive(boolean);
     method public void setIntent(android.content.Intent);
     method public final void setMediaController(android.media.session.MediaController);
+    method public void setOverlayWithDecorCaptionEnabled(boolean);
     method public final deprecated void setProgress(int);
     method public final deprecated void setProgressBarIndeterminate(boolean);
     method public final deprecated void setProgressBarIndeterminateVisibility(boolean);
@@ -4435,11 +4438,11 @@
     method public void onInflate(android.content.Context, android.util.AttributeSet, android.os.Bundle);
     method public deprecated void onInflate(android.app.Activity, android.util.AttributeSet, android.os.Bundle);
     method public void onLowMemory();
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onOptionsItemSelected(android.view.MenuItem);
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method public void onPrepareOptionsMenu(android.view.Menu);
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method public void onResume();
@@ -4520,11 +4523,11 @@
     method public void dispatchDestroy();
     method public void dispatchDestroyView();
     method public void dispatchLowMemory();
-    method public void dispatchMultiWindowChanged(boolean);
+    method public void dispatchMultiWindowModeChanged(boolean);
     method public boolean dispatchOptionsItemSelected(android.view.MenuItem);
     method public void dispatchOptionsMenuClosed(android.view.Menu);
     method public void dispatchPause();
-    method public void dispatchPictureInPictureChanged(boolean);
+    method public void dispatchPictureInPictureModeChanged(boolean);
     method public boolean dispatchPrepareOptionsMenu(android.view.Menu);
     method public void dispatchResume();
     method public void dispatchStart();
@@ -5853,7 +5856,7 @@
     method public boolean getCrossProfileContactsSearchDisabled(android.content.ComponentName);
     method public java.util.List<java.lang.String> getCrossProfileWidgetProviders(android.content.ComponentName);
     method public int getCurrentFailedPasswordAttempts();
-    method public java.lang.String getDeviceOwnerLockScreenInfo();
+    method public java.lang.CharSequence getDeviceOwnerLockScreenInfo();
     method public java.util.List<byte[]> getInstalledCaCerts(android.content.ComponentName);
     method public int getKeyguardDisabledFeatures(android.content.ComponentName);
     method public java.lang.String getLongSupportMessage(android.content.ComponentName);
@@ -5891,7 +5894,7 @@
     method public boolean hasGrantedPolicy(android.content.ComponentName, int);
     method public boolean installCaCert(android.content.ComponentName, byte[]);
     method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String);
-    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String, boolean);
+    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate[], java.lang.String, boolean);
     method public boolean isActivePasswordSufficient();
     method public boolean isAdminActive(android.content.ComponentName);
     method public boolean isApplicationHidden(android.content.ComponentName, java.lang.String);
@@ -5924,7 +5927,7 @@
     method public void setCertInstallerPackage(android.content.ComponentName, java.lang.String) throws java.lang.SecurityException;
     method public void setCrossProfileCallerIdDisabled(android.content.ComponentName, boolean);
     method public void setCrossProfileContactsSearchDisabled(android.content.ComponentName, boolean);
-    method public boolean setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.String);
+    method public void setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.CharSequence);
     method public void setGlobalSetting(android.content.ComponentName, java.lang.String, java.lang.String);
     method public boolean setKeyguardDisabled(android.content.ComponentName, boolean);
     method public void setKeyguardDisabledFeatures(android.content.ComponentName, int);
@@ -9999,6 +10002,7 @@
     method public android.content.Intent getIntent();
     method public long getLastChangedTimestamp();
     method public java.lang.String getPackageName();
+    method public java.lang.String getText();
     method public java.lang.String getTitle();
     method public int getWeight();
     method public boolean hasIconFile();
@@ -10026,6 +10030,7 @@
     method public android.content.pm.ShortcutInfo.Builder setIcon(android.graphics.drawable.Icon);
     method public android.content.pm.ShortcutInfo.Builder setId(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setIntent(android.content.Intent);
+    method public android.content.pm.ShortcutInfo.Builder setText(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setTitle(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setWeight(int);
   }
@@ -29125,6 +29130,7 @@
     field public static final int RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY = 1; // 0x1
     field public static final deprecated int SCREEN_BRIGHT_WAKE_LOCK = 10; // 0xa
     field public static final deprecated int SCREEN_DIM_WAKE_LOCK = 6; // 0x6
+    field public static final int SUSTAINED_PERFORMANCE_WAKE_LOCK = 256; // 0x100
   }
 
   public final class PowerManager.WakeLock {
@@ -30368,7 +30374,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
-    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.os.CancellationSignal, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -44644,6 +44650,7 @@
     ctor public BaseInputConnection(android.view.View, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -44811,6 +44818,7 @@
   public abstract interface InputConnection {
     method public abstract boolean beginBatchEdit();
     method public abstract boolean clearMetaKeyStates(int);
+    method public abstract void closeConnection();
     method public abstract boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public abstract boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public abstract boolean commitText(java.lang.CharSequence, int);
@@ -44843,6 +44851,7 @@
     ctor public InputConnectionWrapper(android.view.inputmethod.InputConnection, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -48290,9 +48299,15 @@
     method public void collapseActionView();
     method public void dismissPopupMenus();
     method public int getContentInsetEnd();
+    method public int getContentInsetEndWithActions();
     method public int getContentInsetLeft();
     method public int getContentInsetRight();
     method public int getContentInsetStart();
+    method public int getContentInsetStartWithNavigation();
+    method public int getCurrentContentInsetEnd();
+    method public int getCurrentContentInsetLeft();
+    method public int getCurrentContentInsetRight();
+    method public int getCurrentContentInsetStart();
     method public android.graphics.drawable.Drawable getLogo();
     method public java.lang.CharSequence getLogoDescription();
     method public android.view.Menu getMenu();
@@ -48311,6 +48326,8 @@
     method public void inflateMenu(int);
     method public boolean isOverflowMenuShowing();
     method protected void onLayout(boolean, int, int, int, int);
+    method public void setContentInsetEndWithActions(int);
+    method public void setContentInsetStartWithNavigation(int);
     method public void setContentInsetsAbsolute(int, int);
     method public void setContentInsetsRelative(int, int);
     method public void setLogo(int);
diff --git a/api/system-current.txt b/api/system-current.txt
index e372d98..54f3834 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -511,9 +511,11 @@
     field public static final int contentAuthority = 16843408; // 0x1010290
     field public static final int contentDescription = 16843379; // 0x1010273
     field public static final int contentInsetEnd = 16843860; // 0x1010454
+    field public static final int contentInsetEndWithActions = 16844070; // 0x1010526
     field public static final int contentInsetLeft = 16843861; // 0x1010455
     field public static final int contentInsetRight = 16843862; // 0x1010456
     field public static final int contentInsetStart = 16843859; // 0x1010453
+    field public static final int contentInsetStartWithNavigation = 16844069; // 0x1010525
     field public static final int contextClickable = 16844007; // 0x10104e7
     field public static final int contextPopupMenuStyle = 16844034; // 0x1010502
     field public static final int controlX1 = 16843772; // 0x10103fc
@@ -3538,7 +3540,7 @@
     method public boolean dispatchTouchEvent(android.view.MotionEvent);
     method public boolean dispatchTrackballEvent(android.view.MotionEvent);
     method public void dump(java.lang.String, java.io.FileDescriptor, java.io.PrintWriter, java.lang.String[]);
-    method public void enterPictureInPicture();
+    method public void enterPictureInPictureMode();
     method public android.view.View findViewById(int);
     method public void finish();
     method public void finishActivity(int);
@@ -3578,8 +3580,6 @@
     method public android.view.Window getWindow();
     method public android.view.WindowManager getWindowManager();
     method public boolean hasWindowFocus();
-    method public boolean inMultiWindow();
-    method public boolean inPictureInPicture();
     method public void invalidateOptionsMenu();
     method public boolean isBackgroundVisibleBehind();
     method public boolean isChangingConfigurations();
@@ -3587,7 +3587,10 @@
     method public boolean isDestroyed();
     method public boolean isFinishing();
     method public boolean isImmersive();
+    method public boolean isInMultiWindowMode();
+    method public boolean isInPictureInPictureMode();
     method public boolean isLocalVoiceInteractionSupported();
+    method public boolean isOverlayWithDecorCaptionEnabled();
     method public boolean isTaskRoot();
     method public boolean isVoiceInteraction();
     method public boolean isVoiceInteractionRoot();
@@ -3635,7 +3638,7 @@
     method public void onLowMemory();
     method public boolean onMenuItemSelected(int, android.view.MenuItem);
     method public boolean onMenuOpened(int, android.view.Menu);
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onNavigateUp();
     method public boolean onNavigateUpFromChild(android.app.Activity);
     method protected void onNewIntent(android.content.Intent);
@@ -3643,7 +3646,7 @@
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method protected void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method protected void onPostCreate(android.os.Bundle);
     method public void onPostCreate(android.os.Bundle, android.os.PersistableBundle);
     method protected void onPostResume();
@@ -3681,7 +3684,6 @@
     method public android.view.ActionMode onWindowStartingActionMode(android.view.ActionMode.Callback, int);
     method public void openContextMenu(android.view.View);
     method public void openOptionsMenu();
-    method public void overlayWithDecorCaption(boolean);
     method public void overridePendingTransition(int, int);
     method public void postponeEnterTransition();
     method public void recreate();
@@ -3710,6 +3712,7 @@
     method public void setImmersive(boolean);
     method public void setIntent(android.content.Intent);
     method public final void setMediaController(android.media.session.MediaController);
+    method public void setOverlayWithDecorCaptionEnabled(boolean);
     method public final deprecated void setProgress(int);
     method public final deprecated void setProgressBarIndeterminate(boolean);
     method public final deprecated void setProgressBarIndeterminateVisibility(boolean);
@@ -4567,11 +4570,11 @@
     method public void onInflate(android.content.Context, android.util.AttributeSet, android.os.Bundle);
     method public deprecated void onInflate(android.app.Activity, android.util.AttributeSet, android.os.Bundle);
     method public void onLowMemory();
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onOptionsItemSelected(android.view.MenuItem);
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method public void onPrepareOptionsMenu(android.view.Menu);
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method public void onResume();
@@ -4652,11 +4655,11 @@
     method public void dispatchDestroy();
     method public void dispatchDestroyView();
     method public void dispatchLowMemory();
-    method public void dispatchMultiWindowChanged(boolean);
+    method public void dispatchMultiWindowModeChanged(boolean);
     method public boolean dispatchOptionsItemSelected(android.view.MenuItem);
     method public void dispatchOptionsMenuClosed(android.view.Menu);
     method public void dispatchPause();
-    method public void dispatchPictureInPictureChanged(boolean);
+    method public void dispatchPictureInPictureModeChanged(boolean);
     method public boolean dispatchPrepareOptionsMenu(android.view.Menu);
     method public void dispatchResume();
     method public void dispatchStart();
@@ -5993,7 +5996,7 @@
     method public deprecated java.lang.String getDeviceInitializerApp();
     method public deprecated android.content.ComponentName getDeviceInitializerComponent();
     method public java.lang.String getDeviceOwner();
-    method public java.lang.String getDeviceOwnerLockScreenInfo();
+    method public java.lang.CharSequence getDeviceOwnerLockScreenInfo();
     method public java.lang.String getDeviceOwnerNameOnAnyUser();
     method public java.util.List<byte[]> getInstalledCaCerts(android.content.ComponentName);
     method public int getKeyguardDisabledFeatures(android.content.ComponentName);
@@ -6037,7 +6040,7 @@
     method public boolean hasGrantedPolicy(android.content.ComponentName, int);
     method public boolean installCaCert(android.content.ComponentName, byte[]);
     method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String);
-    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String, boolean);
+    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate[], java.lang.String, boolean);
     method public boolean isActivePasswordSufficient();
     method public boolean isAdminActive(android.content.ComponentName);
     method public boolean isApplicationHidden(android.content.ComponentName, java.lang.String);
@@ -6072,7 +6075,7 @@
     method public void setCertInstallerPackage(android.content.ComponentName, java.lang.String) throws java.lang.SecurityException;
     method public void setCrossProfileCallerIdDisabled(android.content.ComponentName, boolean);
     method public void setCrossProfileContactsSearchDisabled(android.content.ComponentName, boolean);
-    method public boolean setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.String);
+    method public void setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.CharSequence);
     method public void setGlobalSetting(android.content.ComponentName, java.lang.String, java.lang.String);
     method public boolean setKeyguardDisabled(android.content.ComponentName, boolean);
     method public void setKeyguardDisabledFeatures(android.content.ComponentName, int);
@@ -10397,6 +10400,7 @@
     method public android.content.Intent getIntent();
     method public long getLastChangedTimestamp();
     method public java.lang.String getPackageName();
+    method public java.lang.String getText();
     method public java.lang.String getTitle();
     method public int getWeight();
     method public boolean hasIconFile();
@@ -10424,6 +10428,7 @@
     method public android.content.pm.ShortcutInfo.Builder setIcon(android.graphics.drawable.Icon);
     method public android.content.pm.ShortcutInfo.Builder setId(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setIntent(android.content.Intent);
+    method public android.content.pm.ShortcutInfo.Builder setText(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setTitle(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setWeight(int);
   }
@@ -26815,7 +26820,9 @@
     method public void configureWifiChange(android.net.wifi.WifiScanner.WifiChangeSettings);
     method public boolean getScanResults();
     method public void startBackgroundScan(android.net.wifi.WifiScanner.ScanSettings, android.net.wifi.WifiScanner.ScanListener);
+    method public void startBackgroundScan(android.net.wifi.WifiScanner.ScanSettings, android.net.wifi.WifiScanner.ScanListener, android.os.WorkSource);
     method public void startScan(android.net.wifi.WifiScanner.ScanSettings, android.net.wifi.WifiScanner.ScanListener);
+    method public void startScan(android.net.wifi.WifiScanner.ScanSettings, android.net.wifi.WifiScanner.ScanListener, android.os.WorkSource);
     method public void startTrackingBssids(android.net.wifi.WifiScanner.BssidInfo[], int, android.net.wifi.WifiScanner.BssidListener);
     method public void startTrackingWifiChange(android.net.wifi.WifiScanner.WifiChangeListener);
     method public void stopBackgroundScan(android.net.wifi.WifiScanner.ScanListener);
@@ -31370,6 +31377,7 @@
     field public static final deprecated int SCREEN_BRIGHT_WAKE_LOCK = 10; // 0xa
     field public static final deprecated int SCREEN_DIM_WAKE_LOCK = 6; // 0x6
     field public static final int USER_ACTIVITY_EVENT_ACCESSIBILITY = 3; // 0x3
+    field public static final int SUSTAINED_PERFORMANCE_WAKE_LOCK = 256; // 0x100
     field public static final int USER_ACTIVITY_EVENT_BUTTON = 1; // 0x1
     field public static final int USER_ACTIVITY_EVENT_OTHER = 0; // 0x0
     field public static final int USER_ACTIVITY_EVENT_TOUCH = 2; // 0x2
@@ -32683,7 +32691,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
-    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.os.CancellationSignal, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -47373,6 +47381,7 @@
     ctor public BaseInputConnection(android.view.View, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -47540,6 +47549,7 @@
   public abstract interface InputConnection {
     method public abstract boolean beginBatchEdit();
     method public abstract boolean clearMetaKeyStates(int);
+    method public abstract void closeConnection();
     method public abstract boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public abstract boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public abstract boolean commitText(java.lang.CharSequence, int);
@@ -47572,6 +47582,7 @@
     ctor public InputConnectionWrapper(android.view.inputmethod.InputConnection, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -51354,9 +51365,15 @@
     method public void collapseActionView();
     method public void dismissPopupMenus();
     method public int getContentInsetEnd();
+    method public int getContentInsetEndWithActions();
     method public int getContentInsetLeft();
     method public int getContentInsetRight();
     method public int getContentInsetStart();
+    method public int getContentInsetStartWithNavigation();
+    method public int getCurrentContentInsetEnd();
+    method public int getCurrentContentInsetLeft();
+    method public int getCurrentContentInsetRight();
+    method public int getCurrentContentInsetStart();
     method public android.graphics.drawable.Drawable getLogo();
     method public java.lang.CharSequence getLogoDescription();
     method public android.view.Menu getMenu();
@@ -51375,6 +51392,8 @@
     method public void inflateMenu(int);
     method public boolean isOverflowMenuShowing();
     method protected void onLayout(boolean, int, int, int, int);
+    method public void setContentInsetEndWithActions(int);
+    method public void setContentInsetStartWithNavigation(int);
     method public void setContentInsetsAbsolute(int, int);
     method public void setContentInsetsRelative(int, int);
     method public void setLogo(int);
diff --git a/api/test-current.txt b/api/test-current.txt
index e4153f1..3d03d5b 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -416,9 +416,11 @@
     field public static final int contentAuthority = 16843408; // 0x1010290
     field public static final int contentDescription = 16843379; // 0x1010273
     field public static final int contentInsetEnd = 16843860; // 0x1010454
+    field public static final int contentInsetEndWithActions = 16844070; // 0x1010526
     field public static final int contentInsetLeft = 16843861; // 0x1010455
     field public static final int contentInsetRight = 16843862; // 0x1010456
     field public static final int contentInsetStart = 16843859; // 0x1010453
+    field public static final int contentInsetStartWithNavigation = 16844069; // 0x1010525
     field public static final int contextClickable = 16844007; // 0x10104e7
     field public static final int contextPopupMenuStyle = 16844034; // 0x1010502
     field public static final int controlX1 = 16843772; // 0x10103fc
@@ -3423,7 +3425,7 @@
     method public boolean dispatchTouchEvent(android.view.MotionEvent);
     method public boolean dispatchTrackballEvent(android.view.MotionEvent);
     method public void dump(java.lang.String, java.io.FileDescriptor, java.io.PrintWriter, java.lang.String[]);
-    method public void enterPictureInPicture();
+    method public void enterPictureInPictureMode();
     method public android.view.View findViewById(int);
     method public void finish();
     method public void finishActivity(int);
@@ -3463,15 +3465,16 @@
     method public android.view.Window getWindow();
     method public android.view.WindowManager getWindowManager();
     method public boolean hasWindowFocus();
-    method public boolean inMultiWindow();
-    method public boolean inPictureInPicture();
     method public void invalidateOptionsMenu();
     method public boolean isChangingConfigurations();
     method public final boolean isChild();
     method public boolean isDestroyed();
     method public boolean isFinishing();
     method public boolean isImmersive();
+    method public boolean isInMultiWindowMode();
+    method public boolean isInPictureInPictureMode();
     method public boolean isLocalVoiceInteractionSupported();
+    method public boolean isOverlayWithDecorCaptionEnabled();
     method public boolean isTaskRoot();
     method public boolean isVoiceInteraction();
     method public boolean isVoiceInteractionRoot();
@@ -3518,7 +3521,7 @@
     method public void onLowMemory();
     method public boolean onMenuItemSelected(int, android.view.MenuItem);
     method public boolean onMenuOpened(int, android.view.Menu);
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onNavigateUp();
     method public boolean onNavigateUpFromChild(android.app.Activity);
     method protected void onNewIntent(android.content.Intent);
@@ -3526,7 +3529,7 @@
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPanelClosed(int, android.view.Menu);
     method protected void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method protected void onPostCreate(android.os.Bundle);
     method public void onPostCreate(android.os.Bundle, android.os.PersistableBundle);
     method protected void onPostResume();
@@ -3564,7 +3567,6 @@
     method public android.view.ActionMode onWindowStartingActionMode(android.view.ActionMode.Callback, int);
     method public void openContextMenu(android.view.View);
     method public void openOptionsMenu();
-    method public void overlayWithDecorCaption(boolean);
     method public void overridePendingTransition(int, int);
     method public void postponeEnterTransition();
     method public void recreate();
@@ -3593,6 +3595,7 @@
     method public void setImmersive(boolean);
     method public void setIntent(android.content.Intent);
     method public final void setMediaController(android.media.session.MediaController);
+    method public void setOverlayWithDecorCaptionEnabled(boolean);
     method public final deprecated void setProgress(int);
     method public final deprecated void setProgressBarIndeterminate(boolean);
     method public final deprecated void setProgressBarIndeterminateVisibility(boolean);
@@ -4435,11 +4438,11 @@
     method public void onInflate(android.content.Context, android.util.AttributeSet, android.os.Bundle);
     method public deprecated void onInflate(android.app.Activity, android.util.AttributeSet, android.os.Bundle);
     method public void onLowMemory();
-    method public void onMultiWindowChanged(boolean);
+    method public void onMultiWindowModeChanged(boolean);
     method public boolean onOptionsItemSelected(android.view.MenuItem);
     method public void onOptionsMenuClosed(android.view.Menu);
     method public void onPause();
-    method public void onPictureInPictureChanged(boolean);
+    method public void onPictureInPictureModeChanged(boolean);
     method public void onPrepareOptionsMenu(android.view.Menu);
     method public void onRequestPermissionsResult(int, java.lang.String[], int[]);
     method public void onResume();
@@ -4520,11 +4523,11 @@
     method public void dispatchDestroy();
     method public void dispatchDestroyView();
     method public void dispatchLowMemory();
-    method public void dispatchMultiWindowChanged(boolean);
+    method public void dispatchMultiWindowModeChanged(boolean);
     method public boolean dispatchOptionsItemSelected(android.view.MenuItem);
     method public void dispatchOptionsMenuClosed(android.view.Menu);
     method public void dispatchPause();
-    method public void dispatchPictureInPictureChanged(boolean);
+    method public void dispatchPictureInPictureModeChanged(boolean);
     method public boolean dispatchPrepareOptionsMenu(android.view.Menu);
     method public void dispatchResume();
     method public void dispatchStart();
@@ -5857,7 +5860,7 @@
     method public boolean getCrossProfileContactsSearchDisabled(android.content.ComponentName);
     method public java.util.List<java.lang.String> getCrossProfileWidgetProviders(android.content.ComponentName);
     method public int getCurrentFailedPasswordAttempts();
-    method public java.lang.String getDeviceOwnerLockScreenInfo();
+    method public java.lang.CharSequence getDeviceOwnerLockScreenInfo();
     method public java.util.List<byte[]> getInstalledCaCerts(android.content.ComponentName);
     method public int getKeyguardDisabledFeatures(android.content.ComponentName);
     method public java.lang.String getLongSupportMessage(android.content.ComponentName);
@@ -5895,7 +5898,7 @@
     method public boolean hasGrantedPolicy(android.content.ComponentName, int);
     method public boolean installCaCert(android.content.ComponentName, byte[]);
     method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String);
-    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate, java.lang.String, boolean);
+    method public boolean installKeyPair(android.content.ComponentName, java.security.PrivateKey, java.security.cert.Certificate[], java.lang.String, boolean);
     method public boolean isActivePasswordSufficient();
     method public boolean isAdminActive(android.content.ComponentName);
     method public boolean isApplicationHidden(android.content.ComponentName, java.lang.String);
@@ -5928,7 +5931,7 @@
     method public void setCertInstallerPackage(android.content.ComponentName, java.lang.String) throws java.lang.SecurityException;
     method public void setCrossProfileCallerIdDisabled(android.content.ComponentName, boolean);
     method public void setCrossProfileContactsSearchDisabled(android.content.ComponentName, boolean);
-    method public boolean setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.String);
+    method public void setDeviceOwnerLockScreenInfo(android.content.ComponentName, java.lang.CharSequence);
     method public void setGlobalSetting(android.content.ComponentName, java.lang.String, java.lang.String);
     method public boolean setKeyguardDisabled(android.content.ComponentName, boolean);
     method public void setKeyguardDisabledFeatures(android.content.ComponentName, int);
@@ -10009,6 +10012,7 @@
     method public android.content.Intent getIntent();
     method public long getLastChangedTimestamp();
     method public java.lang.String getPackageName();
+    method public java.lang.String getText();
     method public java.lang.String getTitle();
     method public int getWeight();
     method public boolean hasIconFile();
@@ -10036,6 +10040,7 @@
     method public android.content.pm.ShortcutInfo.Builder setIcon(android.graphics.drawable.Icon);
     method public android.content.pm.ShortcutInfo.Builder setId(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setIntent(android.content.Intent);
+    method public android.content.pm.ShortcutInfo.Builder setText(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setTitle(java.lang.String);
     method public android.content.pm.ShortcutInfo.Builder setWeight(int);
   }
@@ -29190,6 +29195,7 @@
     field public static final int RELEASE_FLAG_WAIT_FOR_NO_PROXIMITY = 1; // 0x1
     field public static final deprecated int SCREEN_BRIGHT_WAKE_LOCK = 10; // 0xa
     field public static final deprecated int SCREEN_DIM_WAKE_LOCK = 6; // 0x6
+    field public static final int SUSTAINED_PERFORMANCE_WAKE_LOCK = 256; // 0x100
   }
 
   public final class PowerManager.WakeLock {
@@ -30437,7 +30443,7 @@
     method public final boolean isDestroyed();
     method public final boolean isPrinterDiscoveryStarted();
     method public abstract void onDestroy();
-    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.printservice.CustomPrinterIconCallback);
+    method public void onRequestCustomPrinterIcon(android.print.PrinterId, android.os.CancellationSignal, android.printservice.CustomPrinterIconCallback);
     method public abstract void onStartPrinterDiscovery(java.util.List<android.print.PrinterId>);
     method public abstract void onStartPrinterStateTracking(android.print.PrinterId);
     method public abstract void onStopPrinterDiscovery();
@@ -44718,6 +44724,7 @@
     ctor public BaseInputConnection(android.view.View, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -44885,6 +44892,7 @@
   public abstract interface InputConnection {
     method public abstract boolean beginBatchEdit();
     method public abstract boolean clearMetaKeyStates(int);
+    method public abstract void closeConnection();
     method public abstract boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public abstract boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public abstract boolean commitText(java.lang.CharSequence, int);
@@ -44917,6 +44925,7 @@
     ctor public InputConnectionWrapper(android.view.inputmethod.InputConnection, boolean);
     method public boolean beginBatchEdit();
     method public boolean clearMetaKeyStates(int);
+    method public void closeConnection();
     method public boolean commitCompletion(android.view.inputmethod.CompletionInfo);
     method public boolean commitCorrection(android.view.inputmethod.CorrectionInfo);
     method public boolean commitText(java.lang.CharSequence, int);
@@ -48364,9 +48373,15 @@
     method public void collapseActionView();
     method public void dismissPopupMenus();
     method public int getContentInsetEnd();
+    method public int getContentInsetEndWithActions();
     method public int getContentInsetLeft();
     method public int getContentInsetRight();
     method public int getContentInsetStart();
+    method public int getContentInsetStartWithNavigation();
+    method public int getCurrentContentInsetEnd();
+    method public int getCurrentContentInsetLeft();
+    method public int getCurrentContentInsetRight();
+    method public int getCurrentContentInsetStart();
     method public android.graphics.drawable.Drawable getLogo();
     method public java.lang.CharSequence getLogoDescription();
     method public android.view.Menu getMenu();
@@ -48385,6 +48400,8 @@
     method public void inflateMenu(int);
     method public boolean isOverflowMenuShowing();
     method protected void onLayout(boolean, int, int, int, int);
+    method public void setContentInsetEndWithActions(int);
+    method public void setContentInsetStartWithNavigation(int);
     method public void setContentInsetsAbsolute(int, int);
     method public void setContentInsetsRelative(int, int);
     method public void setLogo(int);
diff --git a/cmds/pm/src/com/android/commands/pm/Pm.java b/cmds/pm/src/com/android/commands/pm/Pm.java
index 4025553..d44a1df 100644
--- a/cmds/pm/src/com/android/commands/pm/Pm.java
+++ b/cmds/pm/src/com/android/commands/pm/Pm.java
@@ -930,7 +930,7 @@
                 // In non-split user mode, userId can only be SYSTEM
                 int parentUserId = userId >= 0 ? userId : UserHandle.USER_SYSTEM;
                 info = mUm.createRestrictedProfile(name, parentUserId);
-                mAm.addSharedAccountsFromParentUser(userId, parentUserId);
+                mAm.addSharedAccountsFromParentUser(parentUserId, userId);
             } else if (userId < 0) {
                 info = mUm.createUser(name, flags);
             } else {
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index 887932a..0410a6e 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -51,12 +51,7 @@
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Color;
-import android.graphics.Paint;
-import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
-import android.graphics.drawable.InsetDrawable;
-import android.graphics.drawable.LayerDrawable;
-import android.graphics.drawable.ShapeDrawable;
 import android.hardware.input.InputManager;
 import android.media.AudioManager;
 import android.media.session.MediaController;
@@ -121,7 +116,6 @@
 import com.android.internal.app.IVoiceInteractor;
 import com.android.internal.app.ToolbarActionBar;
 import com.android.internal.app.WindowDecorActionBar;
-import com.android.internal.policy.DecorView;
 import com.android.internal.policy.PhoneWindow;
 
 import java.io.FileDescriptor;
@@ -1855,15 +1849,15 @@
      * visa-versa.
      * @see android.R.attr#resizeableActivity
      *
-     * @param inMultiWindow True if the activity is in multi-window mode.
+     * @param isInMultiWindowMode True if the activity is in multi-window mode.
      */
     @CallSuper
-    public void onMultiWindowChanged(boolean inMultiWindow) {
+    public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
         if (DEBUG_LIFECYCLE) Slog.v(TAG,
-                "onMultiWindowChanged " + this + ": " + inMultiWindow);
-        mFragments.dispatchMultiWindowChanged(inMultiWindow);
+                "onMultiWindowModeChanged " + this + ": " + isInMultiWindowMode);
+        mFragments.dispatchMultiWindowModeChanged(isInMultiWindowMode);
         if (mWindow != null) {
-            mWindow.onMultiWindowChanged();
+            mWindow.onMultiWindowModeChanged();
         }
     }
 
@@ -1873,9 +1867,9 @@
      *
      * @return True if the activity is in multi-window mode.
      */
-    public boolean inMultiWindow() {
+    public boolean isInMultiWindowMode() {
         try {
-            return ActivityManagerNative.getDefault().inMultiWindow(mToken);
+            return ActivityManagerNative.getDefault().isInMultiWindowMode(mToken);
         } catch (RemoteException e) {
         }
         return false;
@@ -1885,13 +1879,13 @@
      * Called by the system when the activity changes to and from picture-in-picture mode.
      * @see android.R.attr#supportsPictureInPicture
      *
-     * @param inPictureInPicture True if the activity is in picture-in-picture mode.
+     * @param isInPictureInPictureMode True if the activity is in picture-in-picture mode.
      */
     @CallSuper
-    public void onPictureInPictureChanged(boolean inPictureInPicture) {
+    public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
         if (DEBUG_LIFECYCLE) Slog.v(TAG,
-                "onPictureInPictureChanged " + this + ": " + inPictureInPicture);
-        mFragments.dispatchPictureInPictureChanged(inPictureInPicture);
+                "onPictureInPictureModeChanged " + this + ": " + isInPictureInPictureMode);
+        mFragments.dispatchPictureInPictureModeChanged(isInPictureInPictureMode);
     }
 
     /**
@@ -1900,9 +1894,9 @@
      *
      * @return True if the activity is in picture-in-picture mode.
      */
-    public boolean inPictureInPicture() {
+    public boolean isInPictureInPictureMode() {
         try {
-            return ActivityManagerNative.getDefault().inPictureInPicture(mToken);
+            return ActivityManagerNative.getDefault().isInPictureInPictureMode(mToken);
         } catch (RemoteException e) {
         }
         return false;
@@ -1912,9 +1906,9 @@
      * Puts the activity in picture-in-picture mode.
      * @see android.R.attr#supportsPictureInPicture
      */
-    public void enterPictureInPicture() {
+    public void enterPictureInPictureMode() {
         try {
-            ActivityManagerNative.getDefault().enterPictureInPicture(mToken);
+            ActivityManagerNative.getDefault().enterPictureInPictureMode(mToken);
         } catch (RemoteException e) {
         }
     }
@@ -5920,6 +5914,9 @@
      * @return true if this is the topmost, non-finishing activity in its task.
      */
     private boolean isTopOfTask() {
+        if (mToken == null || mWindow == null || !mWindowAdded) {
+            return false;
+        }
         try {
             return ActivityManagerNative.getDefault().isTopOfTask(mToken);
         } catch (RemoteException e) {
@@ -6912,14 +6909,25 @@
     }
 
     /**
+     * Check whether the caption on freeform windows is displayed directly on the content.
+     *
+     * @return True if caption is displayed on content, false if it pushes the content down.
+     *
+     * @see {@link #setOverlayWithDecorCaptionEnabled(boolean)}
+     */
+    public boolean isOverlayWithDecorCaptionEnabled() {
+        return mWindow.isOverlayWithDecorCaptionEnabled();
+    }
+
+    /**
      * Set whether the caption should displayed directly on the content rather than push it down.
      *
      * This affects only freeform windows since they display the caption and only the main
      * window of the activity. The caption is used to drag the window around and also shows
      * maximize and close action buttons.
      */
-    public void overlayWithDecorCaption(boolean overlay) {
-        mWindow.setOverlayDecorCaption(overlay);
+    public void setOverlayWithDecorCaptionEnabled(boolean enabled) {
+        mWindow.setOverlayWithDecorCaptionEnabled(enabled);
     }
 
     /**
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 4bf48a3..33621852 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -2890,7 +2890,7 @@
         case IN_MULTI_WINDOW_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             final IBinder token = data.readStrongBinder();
-            final boolean inMultiWindow = inMultiWindow(token);
+            final boolean inMultiWindow = isInMultiWindowMode(token);
             reply.writeNoException();
             reply.writeInt(inMultiWindow ? 1 : 0);
             return true;
@@ -2898,7 +2898,7 @@
         case IN_PICTURE_IN_PICTURE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             final IBinder token = data.readStrongBinder();
-            final boolean inPip = inPictureInPicture(token);
+            final boolean inPip = isInPictureInPictureMode(token);
             reply.writeNoException();
             reply.writeInt(inPip ? 1 : 0);
             return true;
@@ -2906,7 +2906,7 @@
         case ENTER_PICTURE_IN_PICTURE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             final IBinder token = data.readStrongBinder();
-            enterPictureInPicture(token);
+            enterPictureInPictureMode(token);
             reply.writeNoException();
             return true;
         }
@@ -6837,7 +6837,7 @@
     }
 
     @Override
-    public boolean inMultiWindow(IBinder token) throws RemoteException {
+    public boolean isInMultiWindowMode(IBinder token) throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
         data.writeInterfaceToken(IActivityManager.descriptor);
@@ -6851,7 +6851,7 @@
     }
 
     @Override
-    public boolean inPictureInPicture(IBinder token) throws RemoteException {
+    public boolean isInPictureInPictureMode(IBinder token) throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
         data.writeInterfaceToken(IActivityManager.descriptor);
@@ -6865,7 +6865,7 @@
     }
 
     @Override
-    public void enterPictureInPicture(IBinder token) throws RemoteException {
+    public void enterPictureInPictureMode(IBinder token) throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
         data.writeInterfaceToken(IActivityManager.descriptor);
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index dbc6c84..5b94696 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -1284,15 +1284,15 @@
         }
 
         @Override
-        public void scheduleMultiWindowChanged(IBinder token, boolean inMultiWindow)
+        public void scheduleMultiWindowModeChanged(IBinder token, boolean isInMultiWindowMode)
                 throws RemoteException {
-            sendMessage(H.MULTI_WINDOW_CHANGED, token, inMultiWindow ? 1 : 0);
+            sendMessage(H.MULTI_WINDOW_MODE_CHANGED, token, isInMultiWindowMode ? 1 : 0);
         }
 
         @Override
-        public void schedulePictureInPictureChanged(IBinder token, boolean inPip)
+        public void schedulePictureInPictureModeChanged(IBinder token, boolean isInPipMode)
                 throws RemoteException {
-            sendMessage(H.PICTURE_IN_PICTURE_CHANGED, token, inPip ? 1 : 0);
+            sendMessage(H.PICTURE_IN_PICTURE_MODE_CHANGED, token, isInPipMode ? 1 : 0);
         }
 
         @Override
@@ -1364,8 +1364,8 @@
         public static final int ENTER_ANIMATION_COMPLETE = 149;
         public static final int START_BINDER_TRACKING = 150;
         public static final int STOP_BINDER_TRACKING_AND_DUMP = 151;
-        public static final int MULTI_WINDOW_CHANGED = 152;
-        public static final int PICTURE_IN_PICTURE_CHANGED = 153;
+        public static final int MULTI_WINDOW_MODE_CHANGED = 152;
+        public static final int PICTURE_IN_PICTURE_MODE_CHANGED = 153;
         public static final int LOCAL_VOICE_INTERACTION_STARTED = 154;
 
         String codeToString(int code) {
@@ -1420,8 +1420,8 @@
                     case CANCEL_VISIBLE_BEHIND: return "CANCEL_VISIBLE_BEHIND";
                     case BACKGROUND_VISIBLE_BEHIND_CHANGED: return "BACKGROUND_VISIBLE_BEHIND_CHANGED";
                     case ENTER_ANIMATION_COMPLETE: return "ENTER_ANIMATION_COMPLETE";
-                    case MULTI_WINDOW_CHANGED: return "MULTI_WINDOW_CHANGED";
-                    case PICTURE_IN_PICTURE_CHANGED: return "PICTURE_IN_PICTURE_CHANGED";
+                    case MULTI_WINDOW_MODE_CHANGED: return "MULTI_WINDOW_MODE_CHANGED";
+                    case PICTURE_IN_PICTURE_MODE_CHANGED: return "PICTURE_IN_PICTURE_MODE_CHANGED";
                     case LOCAL_VOICE_INTERACTION_STARTED: return "LOCAL_VOICE_INTERACTION_STARTED";
                 }
             }
@@ -1666,11 +1666,11 @@
                 case STOP_BINDER_TRACKING_AND_DUMP:
                     handleStopBinderTrackingAndDump((ParcelFileDescriptor) msg.obj);
                     break;
-                case MULTI_WINDOW_CHANGED:
-                    handleMultiWindowChanged((IBinder) msg.obj, msg.arg1 == 1);
+                case MULTI_WINDOW_MODE_CHANGED:
+                    handleMultiWindowModeChanged((IBinder) msg.obj, msg.arg1 == 1);
                     break;
-                case PICTURE_IN_PICTURE_CHANGED:
-                    handlePictureInPictureChanged((IBinder) msg.obj, msg.arg1 == 1);
+                case PICTURE_IN_PICTURE_MODE_CHANGED:
+                    handlePictureInPictureModeChanged((IBinder) msg.obj, msg.arg1 == 1);
                     break;
                 case LOCAL_VOICE_INTERACTION_STARTED:
                     handleLocalVoiceInteractionStarted((IBinder) ((SomeArgs) msg.obj).arg1,
@@ -2924,17 +2924,17 @@
         }
     }
 
-    private void handleMultiWindowChanged(IBinder token, boolean inMultiWindow) {
+    private void handleMultiWindowModeChanged(IBinder token, boolean isInMultiWindowMode) {
         final ActivityClientRecord r = mActivities.get(token);
         if (r != null) {
-            r.activity.onMultiWindowChanged(inMultiWindow);
+            r.activity.onMultiWindowModeChanged(isInMultiWindowMode);
         }
     }
 
-    private void handlePictureInPictureChanged(IBinder token, boolean inPip) {
+    private void handlePictureInPictureModeChanged(IBinder token, boolean isInPipMode) {
         final ActivityClientRecord r = mActivities.get(token);
         if (r != null) {
-            r.activity.onPictureInPictureChanged(inPip);
+            r.activity.onPictureInPictureModeChanged(isInPipMode);
         }
     }
 
@@ -5077,26 +5077,6 @@
          */
         TimeZone.setDefault(null);
 
-        synchronized (mResourcesManager) {
-            /*
-             * Initialize the default locales in this process for the reasons we set the time zone.
-             *
-             * We do this through ResourcesManager, since we need to do locale negotiation.
-             */
-            mResourcesManager.setDefaultLocalesLocked(data.config.getLocales());
-
-            /*
-             * Update the system configuration since its preloaded and might not
-             * reflect configuration changes. The configuration object passed
-             * in AppBindData can be safely assumed to be up to date
-             */
-            mResourcesManager.applyConfigurationToResourcesLocked(data.config, data.compatInfo);
-            mCurDefaultDisplayDpi = data.config.densityDpi;
-
-            // This calls mResourcesManager so keep it within the synchronized block.
-            applyCompatConfiguration(mCurDefaultDisplayDpi);
-        }
-
         data.info = getPackageInfoNoCheck(data.appInfo, data.compatInfo);
 
         /**
@@ -5221,6 +5201,26 @@
         }
 
         final ContextImpl appContext = ContextImpl.createAppContext(this, data.info);
+        synchronized (mResourcesManager) {
+            /*
+             * Initialize the default locales in this process for the reasons we set the time zone.
+             *
+             * We do this through ResourcesManager, since we need to do locale negotiation.
+             */
+            mResourcesManager.setDefaultLocalesLocked(data.config.getLocales());
+
+            /*
+             * Update the system configuration since its preloaded and might not
+             * reflect configuration changes. The configuration object passed
+             * in AppBindData can be safely assumed to be up to date
+             */
+            mResourcesManager.applyConfigurationToResourcesLocked(data.config, data.compatInfo);
+            mCurDefaultDisplayDpi = data.config.densityDpi;
+
+            // This calls mResourcesManager so keep it within the synchronized block.
+            applyCompatConfiguration(mCurDefaultDisplayDpi);
+        }
+
         if (!Process.isIsolated() && !"android".equals(appContext.getPackageName())) {
             // This cache location probably points at credential-encrypted
             // storage which may not be accessible yet; assign it anyway instead
diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index 744ddf7..ea86dd0 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -736,7 +736,7 @@
             data.enforceInterface(IApplicationThread.descriptor);
             final IBinder b = data.readStrongBinder();
             final boolean inMultiWindow = data.readInt() != 0;
-            scheduleMultiWindowChanged(b, inMultiWindow);
+            scheduleMultiWindowModeChanged(b, inMultiWindow);
             return true;
         }
 
@@ -745,7 +745,7 @@
             data.enforceInterface(IApplicationThread.descriptor);
             final IBinder b = data.readStrongBinder();
             final boolean inPip = data.readInt() != 0;
-            schedulePictureInPictureChanged(b, inPip);
+            schedulePictureInPictureModeChanged(b, inPip);
             return true;
         }
 
@@ -1498,24 +1498,24 @@
     }
 
     @Override
-    public final void scheduleMultiWindowChanged(
-            IBinder token, boolean inMultiWindow) throws RemoteException {
+    public final void scheduleMultiWindowModeChanged(
+            IBinder token, boolean isInMultiWindowMode) throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
-        data.writeInt(inMultiWindow ? 1 : 0);
+        data.writeInt(isInMultiWindowMode ? 1 : 0);
         mRemote.transact(SCHEDULE_MULTI_WINDOW_CHANGED_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
     }
 
     @Override
-    public final void schedulePictureInPictureChanged(IBinder token, boolean inPip)
+    public final void schedulePictureInPictureModeChanged(IBinder token, boolean isInPipMode)
             throws RemoteException {
         Parcel data = Parcel.obtain();
         data.writeInterfaceToken(IApplicationThread.descriptor);
         data.writeStrongBinder(token);
-        data.writeInt(inPip ? 1 : 0);
+        data.writeInt(isInPipMode ? 1 : 0);
         mRemote.transact(SCHEDULE_PICTURE_IN_PICTURE_CHANGED_TRANSACTION, data, null,
                 IBinder.FLAG_ONEWAY);
         data.recycle();
diff --git a/core/java/android/app/ContextImpl.java b/core/java/android/app/ContextImpl.java
index d28f1fb..6bb853a 100644
--- a/core/java/android/app/ContextImpl.java
+++ b/core/java/android/app/ContextImpl.java
@@ -1993,7 +1993,7 @@
         ContextImpl context = new ContextImpl(null, mainThread,
                 packageInfo, null, null, 0, null, null, Display.INVALID_DISPLAY);
         context.mResources.updateConfiguration(context.mResourcesManager.getConfiguration(),
-                context.mResourcesManager.getDisplayMetricsLocked());
+                context.mResourcesManager.getDisplayMetrics());
         return context;
     }
 
@@ -2065,16 +2065,34 @@
                     || overrideConfiguration != null
                     || (compatInfo != null && compatInfo.applicationScale
                             != resources.getCompatibilityInfo().applicationScale)) {
-                resources = mResourcesManager.getResources(
-                        activityToken,
-                        packageInfo.getResDir(),
-                        packageInfo.getSplitResDirs(),
-                        packageInfo.getOverlayDirs(),
-                        packageInfo.getApplicationInfo().sharedLibraryFiles,
-                        displayId,
-                        overrideConfiguration,
-                        compatInfo,
-                        packageInfo.getClassLoader());
+
+                if (container != null) {
+                    // This is a nested Context, so it can't be a base Activity context.
+                    // Just create a regular Resources object associated with the Activity.
+                    resources = mResourcesManager.getResources(
+                            activityToken,
+                            packageInfo.getResDir(),
+                            packageInfo.getSplitResDirs(),
+                            packageInfo.getOverlayDirs(),
+                            packageInfo.getApplicationInfo().sharedLibraryFiles,
+                            displayId,
+                            overrideConfiguration,
+                            compatInfo,
+                            packageInfo.getClassLoader());
+                } else {
+                    // This is not a nested Context, so it must be the root Activity context.
+                    // All other nested Contexts will inherit the configuration set here.
+                    resources = mResourcesManager.createBaseActivityResources(
+                            activityToken,
+                            packageInfo.getResDir(),
+                            packageInfo.getSplitResDirs(),
+                            packageInfo.getOverlayDirs(),
+                            packageInfo.getApplicationInfo().sharedLibraryFiles,
+                            displayId,
+                            overrideConfiguration,
+                            compatInfo,
+                            packageInfo.getClassLoader());
+                }
             }
         }
         mResources = resources;
diff --git a/core/java/android/app/Fragment.java b/core/java/android/app/Fragment.java
index f7a4557..bb3c719 100644
--- a/core/java/android/app/Fragment.java
+++ b/core/java/android/app/Fragment.java
@@ -1582,21 +1582,21 @@
 
     /**
      * Called when the Fragment's activity changes from fullscreen mode to multi-window mode and
-     * visa-versa. This is generally tied to {@link Activity#onMultiWindowChanged} of the containing
-     * Activity.
+     * visa-versa. This is generally tied to {@link Activity#onMultiWindowModeChanged} of the
+     * containing Activity.
      *
-     * @param inMultiWindow True if the activity is in multi-window mode.
+     * @param isInMultiWindowMode True if the activity is in multi-window mode.
      */
-    public void onMultiWindowChanged(boolean inMultiWindow) {
+    public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
     }
 
     /**
      * Called by the system when the activity changes to and from picture-in-picture mode. This is
-     * generally tied to {@link Activity#onPictureInPictureChanged} of the containing Activity.
+     * generally tied to {@link Activity#onPictureInPictureModeChanged} of the containing Activity.
      *
-     * @param inPictureInPicture True if the activity is in picture-in-picture mode.
+     * @param isInPictureInPictureMode True if the activity is in picture-in-picture mode.
      */
-    public void onPictureInPictureChanged(boolean inPictureInPicture) {
+    public void onPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
     }
 
     public void onConfigurationChanged(Configuration newConfig) {
@@ -2334,17 +2334,17 @@
         }
     }
 
-    void performMultiWindowChanged(boolean inMultiWindow) {
-        onMultiWindowChanged(inMultiWindow);
+    void performMultiWindowModeChanged(boolean isInMultiWindowMode) {
+        onMultiWindowModeChanged(isInMultiWindowMode);
         if (mChildFragmentManager != null) {
-            mChildFragmentManager.dispatchMultiWindowChanged(inMultiWindow);
+            mChildFragmentManager.dispatchMultiWindowModeChanged(isInMultiWindowMode);
         }
     }
 
-    void performPictureInPictureChanged(boolean inPictureInPicture) {
-        onPictureInPictureChanged(inPictureInPicture);
+    void performPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
+        onPictureInPictureModeChanged(isInPictureInPictureMode);
         if (mChildFragmentManager != null) {
-            mChildFragmentManager.dispatchPictureInPictureChanged(inPictureInPicture);
+            mChildFragmentManager.dispatchPictureInPictureModeChanged(isInPictureInPictureMode);
         }
     }
 
diff --git a/core/java/android/app/FragmentController.java b/core/java/android/app/FragmentController.java
index 57b0ff1..b3d2df5 100644
--- a/core/java/android/app/FragmentController.java
+++ b/core/java/android/app/FragmentController.java
@@ -247,10 +247,10 @@
      * the activity changed.
      * <p>Call when the multi-window mode of the activity changed.
      *
-     * @see Fragment#onMultiWindowChanged
+     * @see Fragment#onMultiWindowModeChanged
      */
-    public void dispatchMultiWindowChanged(boolean inMultiWindow) {
-        mHost.mFragmentManager.dispatchMultiWindowChanged(inMultiWindow);
+    public void dispatchMultiWindowModeChanged(boolean isInMultiWindowMode) {
+        mHost.mFragmentManager.dispatchMultiWindowModeChanged(isInMultiWindowMode);
     }
 
     /**
@@ -258,10 +258,10 @@
      * mode of the activity changed.
      * <p>Call when the picture-in-picture mode of the activity changed.
      *
-     * @see Fragment#onPictureInPictureChanged
+     * @see Fragment#onPictureInPictureModeChanged
      */
-    public void dispatchPictureInPictureChanged(boolean inPictureInPicture) {
-        mHost.mFragmentManager.dispatchPictureInPictureChanged(inPictureInPicture);
+    public void dispatchPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
+        mHost.mFragmentManager.dispatchPictureInPictureModeChanged(isInPictureInPictureMode);
     }
 
     /**
diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java
index 2852baf..8369f17 100644
--- a/core/java/android/app/FragmentManager.java
+++ b/core/java/android/app/FragmentManager.java
@@ -2069,26 +2069,26 @@
         mParent = null;
     }
 
-    public void dispatchMultiWindowChanged(boolean inMultiWindow) {
+    public void dispatchMultiWindowModeChanged(boolean isInMultiWindowMode) {
         if (mAdded == null) {
             return;
         }
         for (int i = mAdded.size() - 1; i >= 0; --i) {
             final Fragment f = mAdded.get(i);
             if (f != null) {
-                f.performMultiWindowChanged(inMultiWindow);
+                f.performMultiWindowModeChanged(isInMultiWindowMode);
             }
         }
     }
 
-    public void dispatchPictureInPictureChanged(boolean inPictureInPicture) {
+    public void dispatchPictureInPictureModeChanged(boolean isInPictureInPictureMode) {
         if (mAdded == null) {
             return;
         }
         for (int i = mAdded.size() - 1; i >= 0; --i) {
             final Fragment f = mAdded.get(i);
             if (f != null) {
-                f.performPictureInPictureChanged(inPictureInPicture);
+                f.performPictureInPictureModeChanged(isInPictureInPictureMode);
             }
         }
     }
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 417c0679..8ee6fd0 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -623,11 +623,11 @@
 
     public int getAppStartMode(int uid, String packageName) throws RemoteException;
 
-    public boolean inMultiWindow(IBinder token) throws RemoteException;
+    public boolean isInMultiWindowMode(IBinder token) throws RemoteException;
 
-    public boolean inPictureInPicture(IBinder token) throws RemoteException;
+    public boolean isInPictureInPictureMode(IBinder token) throws RemoteException;
 
-    public void enterPictureInPicture(IBinder token) throws RemoteException;
+    public void enterPictureInPictureMode(IBinder token) throws RemoteException;
 
     public int setVrMode(IBinder token, boolean enabled, ComponentName packageName)
             throws RemoteException;
diff --git a/core/java/android/app/IApplicationThread.java b/core/java/android/app/IApplicationThread.java
index 628bde0..a3b2638 100644
--- a/core/java/android/app/IApplicationThread.java
+++ b/core/java/android/app/IApplicationThread.java
@@ -158,8 +158,8 @@
     void notifyCleartextNetwork(byte[] firstPacket) throws RemoteException;
     void startBinderTracking() throws RemoteException;
     void stopBinderTrackingAndDump(FileDescriptor fd) throws RemoteException;
-    void scheduleMultiWindowChanged(IBinder token, boolean multiWindowMode) throws RemoteException;
-    void schedulePictureInPictureChanged(IBinder token, boolean multiWindowMode) throws RemoteException;
+    void scheduleMultiWindowModeChanged(IBinder token, boolean isInMultiWindowMode) throws RemoteException;
+    void schedulePictureInPictureModeChanged(IBinder token, boolean isInPictureInPictureMode) throws RemoteException;
     void scheduleLocalVoiceInteractionStarted(IBinder token, IVoiceInteractor voiceInteractor) throws RemoteException;
 
     String descriptor = "android.app.IApplicationThread";
diff --git a/core/java/android/app/ResourcesManager.java b/core/java/android/app/ResourcesManager.java
index 54d813d..3f22385 100644
--- a/core/java/android/app/ResourcesManager.java
+++ b/core/java/android/app/ResourcesManager.java
@@ -66,7 +66,7 @@
                 }
             };
 
-    private String[] mSystemLocales = {};
+    private String[] mSystemLocales = null;
     private final HashSet<String> mNonSystemLocales = new HashSet<>();
     private boolean mHasNonSystemLocales = false;
 
@@ -94,9 +94,18 @@
     private final ArrayList<WeakReference<Resources>> mResourceReferences = new ArrayList<>();
 
     /**
-     * Each Activity may have only one Resources object.
+     * Resources and base configuration override associated with an Activity.
      */
-    private final WeakHashMap<IBinder, WeakReference<Resources>> mActivityResourceReferences =
+    private static class ActivityResources {
+        public final Configuration overrideConfig = new Configuration();
+        public final ArrayList<WeakReference<Resources>> activityResources = new ArrayList<>();
+    }
+
+    /**
+     * Each Activity may has a base override configuration that is applied to each Resources object,
+     * which in turn may have their own override configuration specified.
+     */
+    private final WeakHashMap<IBinder, ActivityResources> mActivityResourceReferences =
             new WeakHashMap<>();
 
     /**
@@ -115,18 +124,20 @@
     }
 
     public Configuration getConfiguration() {
-        return mResConfiguration;
+        synchronized (this) {
+            return mResConfiguration;
+        }
     }
 
-    DisplayMetrics getDisplayMetricsLocked() {
-        return getDisplayMetricsLocked(Display.DEFAULT_DISPLAY);
+    DisplayMetrics getDisplayMetrics() {
+        return getDisplayMetrics(Display.DEFAULT_DISPLAY);
     }
 
     /**
      * Protected so that tests can override and returns something a fixed value.
      */
     @VisibleForTesting
-    protected DisplayMetrics getDisplayMetricsLocked(int displayId) {
+    protected DisplayMetrics getDisplayMetrics(int displayId) {
         DisplayMetrics dm = new DisplayMetrics();
         final Display display =
                 getAdjustedDisplay(displayId, DisplayAdjustments.DEFAULT_DISPLAY_ADJUSTMENTS);
@@ -272,10 +283,9 @@
         return config;
     }
 
-
     private ResourcesImpl createResourcesImpl(@NonNull ResourcesKey key) {
         AssetManager assets = createAssetManager(key);
-        DisplayMetrics dm = getDisplayMetricsLocked(key.mDisplayId);
+        DisplayMetrics dm = getDisplayMetrics(key.mDisplayId);
         Configuration config = generateConfig(key, dm);
         ResourcesImpl impl = new ResourcesImpl(assets, dm, config, key.mCompatInfo);
         if (DEBUG) {
@@ -290,7 +300,7 @@
      * @param key The key to match.
      * @return a ResourcesImpl if the key matches a cache entry, null otherwise.
      */
-    private ResourcesImpl findResourcesImplForKey(@NonNull ResourcesKey key) {
+    private ResourcesImpl findResourcesImplForKeyLocked(@NonNull ResourcesKey key) {
         WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.get(key);
         ResourcesImpl impl = weakImplRef != null ? weakImplRef.get() : null;
         if (impl != null && impl.getAssets().isUpToDate()) {
@@ -303,7 +313,7 @@
      * Find the ResourcesKey that this ResourcesImpl object is associated with.
      * @return the ResourcesKey or null if none was found.
      */
-    private ResourcesKey findKeyForResourceImpl(@NonNull ResourcesImpl resourceImpl) {
+    private ResourcesKey findKeyForResourceImplLocked(@NonNull ResourcesImpl resourceImpl) {
         final int refCount = mResourceImpls.size();
         for (int i = 0; i < refCount; i++) {
             WeakReference<ResourcesImpl> weakImplRef = mResourceImpls.valueAt(i);
@@ -315,36 +325,46 @@
         return null;
     }
 
+    private ActivityResources getOrCreateActivityResourcesStructLocked(
+            @NonNull IBinder activityToken) {
+        ActivityResources activityResources = mActivityResourceReferences.get(activityToken);
+        if (activityResources == null) {
+            activityResources = new ActivityResources();
+            mActivityResourceReferences.put(activityToken, activityResources);
+        }
+        return activityResources;
+    }
+
     /**
      * Gets an existing Resources object tied to this Activity, or creates one if it doesn't exist
      * or the class loader is different.
      */
     private Resources getOrCreateResourcesForActivityLocked(@NonNull IBinder activityToken,
             @NonNull ClassLoader classLoader, @NonNull ResourcesImpl impl) {
-        // This is a request tied to an Activity, meaning we will need to update all
-        // Activity related Resources to match this configuration.
-        WeakReference<Resources> weakResourceRef = mActivityResourceReferences.get(activityToken);
-        Resources resources = weakResourceRef != null ? weakResourceRef.get() : null;
-        if (resources == null || !Objects.equals(resources.getClassLoader(), classLoader)) {
-            resources = new Resources(classLoader);
-            mActivityResourceReferences.put(activityToken, new WeakReference<>(resources));
-            if (DEBUG) {
-                Slog.d(TAG, "- creating new ref=" + resources);
-            }
-        } else {
-            if (DEBUG) {
-                Slog.d(TAG, "- using existing ref=" + resources);
+        final ActivityResources activityResources = getOrCreateActivityResourcesStructLocked(
+                activityToken);
+
+        final int refCount = activityResources.activityResources.size();
+        for (int i = 0; i < refCount; i++) {
+            WeakReference<Resources> weakResourceRef = activityResources.activityResources.get(i);
+            Resources resources = weakResourceRef.get();
+
+            if (resources != null
+                    && Objects.equals(resources.getClassLoader(), classLoader)
+                    && resources.getImpl() == impl) {
+                if (DEBUG) {
+                    Slog.d(TAG, "- using existing ref=" + resources);
+                }
+                return resources;
             }
         }
 
-        if (resources.getImpl() != impl) {
-            if (DEBUG) {
-                Slog.d(TAG, "- setting ref=" + resources + " with impl=" + impl);
-            }
-
-            // Setting an impl is expensive because we update all ThemeImpl references.
-            // too.
-            resources.setImpl(impl);
+        Resources resources = new Resources(classLoader);
+        resources.setImpl(impl);
+        activityResources.activityResources.add(new WeakReference<>(resources));
+        if (DEBUG) {
+            Slog.d(TAG, "- creating new ref=" + resources);
+            Slog.d(TAG, "- setting ref=" + resources + " with impl=" + impl);
         }
         return resources;
     }
@@ -359,7 +379,7 @@
         final int refCount = mResourceReferences.size();
         for (int i = 0; i < refCount; i++) {
             WeakReference<Resources> weakResourceRef = mResourceReferences.get(i);
-            Resources resources = weakResourceRef != null ? weakResourceRef.get() : null;
+            Resources resources = weakResourceRef.get();
             if (resources != null &&
                     Objects.equals(resources.getClassLoader(), classLoader) &&
                     resources.getImpl() == impl) {
@@ -382,6 +402,177 @@
     }
 
     /**
+     * Creates base resources for an Activity. Calls to
+     * {@link #getResources(IBinder, String, String[], String[], String[], int, Configuration,
+     * CompatibilityInfo, ClassLoader)} with the same activityToken will have their override
+     * configurations merged with the one specified here.
+     *
+     * @param activityToken Represents an Activity.
+     * @param resDir The base resource path. Can be null (only framework resources will be loaded).
+     * @param splitResDirs An array of split resource paths. Can be null.
+     * @param overlayDirs An array of overlay paths. Can be null.
+     * @param libDirs An array of resource library paths. Can be null.
+     * @param displayId The ID of the display for which to create the resources.
+     * @param overrideConfig The configuration to apply on top of the base configuration. Can be
+     *                       null. This provides the base override for this Activity.
+     * @param compatInfo The compatibility settings to use. Cannot be null. A default to use is
+     *                   {@link CompatibilityInfo#DEFAULT_COMPATIBILITY_INFO}.
+     * @param classLoader The class loader to use when inflating Resources. If null, the
+     *                    {@link ClassLoader#getSystemClassLoader()} is used.
+     * @return a Resources object from which to access resources.
+     */
+    public Resources createBaseActivityResources(@NonNull IBinder activityToken,
+            @Nullable String resDir,
+            @Nullable String[] splitResDirs,
+            @Nullable String[] overlayDirs,
+            @Nullable String[] libDirs,
+            int displayId,
+            @Nullable Configuration overrideConfig,
+            @NonNull CompatibilityInfo compatInfo,
+            @Nullable ClassLoader classLoader) {
+        final ResourcesKey key = new ResourcesKey(
+                resDir,
+                splitResDirs,
+                overlayDirs,
+                libDirs,
+                displayId,
+                overrideConfig != null ? new Configuration(overrideConfig) : null, // Copy
+                compatInfo);
+        classLoader = classLoader != null ? classLoader : ClassLoader.getSystemClassLoader();
+
+        synchronized (this) {
+            final ActivityResources activityResources = getOrCreateActivityResourcesStructLocked(
+                    activityToken);
+
+            if (overrideConfig != null) {
+                activityResources.overrideConfig.setTo(overrideConfig);
+            } else {
+                activityResources.overrideConfig.setToDefaults();
+            }
+        }
+
+        // Update any existing Activity Resources references.
+        updateResourcesForActivity(activityToken, overrideConfig);
+
+        // Now request an actual Resources object.
+        return getOrCreateResources(activityToken, key, classLoader);
+    }
+
+    /**
+     * Gets an existing Resources object set with a ResourcesImpl object matching the given key,
+     * or creates one if it doesn't exist.
+     *
+     * @param activityToken The Activity this Resources object should be associated with.
+     * @param key The key describing the parameters of the ResourcesImpl object.
+     * @param classLoader The classloader to use for the Resources object.
+     *                    If null, {@link ClassLoader#getSystemClassLoader()} is used.
+     * @return A Resources object that gets updated when
+     *         {@link #applyConfigurationToResourcesLocked(Configuration, CompatibilityInfo)}
+     *         is called.
+     */
+    private Resources getOrCreateResources(@Nullable IBinder activityToken,
+            @NonNull ResourcesKey key, @NonNull ClassLoader classLoader) {
+        final boolean findSystemLocales;
+        final boolean hasNonSystemLocales;
+        synchronized (this) {
+            findSystemLocales = (mSystemLocales == null || mSystemLocales.length == 0);
+            hasNonSystemLocales = mHasNonSystemLocales;
+
+            if (DEBUG) {
+                Throwable here = new Throwable();
+                here.fillInStackTrace();
+                Slog.w(TAG, "!! Get resources for activity=" + activityToken + " key=" + key, here);
+            }
+
+            if (activityToken != null) {
+                final ActivityResources activityResources = getOrCreateActivityResourcesStructLocked(
+                        activityToken);
+
+                // Clean up any dead references so they don't pile up.
+                ArrayUtils.unstableRemoveIf(activityResources.activityResources,
+                        sEmptyReferencePredicate);
+
+                // Rebase the key's override config on top of the Activity's base override.
+                if (key.hasOverrideConfiguration()
+                        && !activityResources.overrideConfig.equals(Configuration.EMPTY)) {
+                    final Configuration temp = new Configuration(activityResources.overrideConfig);
+                    temp.updateFrom(key.mOverrideConfiguration);
+                    key.mOverrideConfiguration.setTo(temp);
+                }
+
+                ResourcesImpl resourcesImpl = findResourcesImplForKeyLocked(key);
+                if (resourcesImpl != null) {
+                    if (DEBUG) {
+                        Slog.d(TAG, "- using existing impl=" + resourcesImpl);
+                    }
+                    return getOrCreateResourcesForActivityLocked(activityToken, classLoader,
+                            resourcesImpl);
+                }
+
+                // We will create the ResourcesImpl object outside of holding this lock.
+
+            } else {
+                // Clean up any dead references so they don't pile up.
+                ArrayUtils.unstableRemoveIf(mResourceReferences, sEmptyReferencePredicate);
+
+                // Not tied to an Activity, find a shared Resources that has the right ResourcesImpl
+                ResourcesImpl resourcesImpl = findResourcesImplForKeyLocked(key);
+                if (resourcesImpl != null) {
+                    if (DEBUG) {
+                        Slog.d(TAG, "- using existing impl=" + resourcesImpl);
+                    }
+                    return getOrCreateResourcesLocked(classLoader, resourcesImpl);
+                }
+
+                // We will create the ResourcesImpl object outside of holding this lock.
+            }
+        }
+
+        // If we're here, we didn't find a suitable ResourcesImpl to use, so create one now.
+        ResourcesImpl resourcesImpl = createResourcesImpl(key);
+
+        final String[] systemLocales = findSystemLocales
+                ? AssetManager.getSystem().getLocales() : null;
+        final String[] nonSystemLocales = resourcesImpl.getAssets().getNonSystemLocales();
+        // Avoid checking for non-pseudo-locales if we already know there were some from a previous
+        // Resources. The default value (for when hasNonSystemLocales is true) doesn't matter,
+        // since mHasNonSystemLocales will also be true, and thus isPseudoLocalesOnly would not be
+        // able to affect mHasNonSystemLocales.
+        final boolean isPseudoLocalesOnly = hasNonSystemLocales ||
+                LocaleList.isPseudoLocalesOnly(nonSystemLocales);
+
+        synchronized (this) {
+            if (mSystemLocales == null || mSystemLocales.length == 0) {
+                mSystemLocales = systemLocales;
+            }
+            mNonSystemLocales.addAll(Arrays.asList(nonSystemLocales));
+            mHasNonSystemLocales = mHasNonSystemLocales || !isPseudoLocalesOnly;
+
+            ResourcesImpl existingResourcesImpl = findResourcesImplForKeyLocked(key);
+            if (existingResourcesImpl != null) {
+                if (DEBUG) {
+                    Slog.d(TAG, "- got beat! existing impl=" + existingResourcesImpl
+                            + " new impl=" + resourcesImpl);
+                }
+                resourcesImpl.getAssets().close();
+                resourcesImpl = existingResourcesImpl;
+            } else {
+                // Add this ResourcesImpl to the cache.
+                mResourceImpls.put(key, new WeakReference<>(resourcesImpl));
+            }
+
+            final Resources resources;
+            if (activityToken != null) {
+                resources = getOrCreateResourcesForActivityLocked(activityToken, classLoader,
+                        resourcesImpl);
+            } else {
+                resources = getOrCreateResourcesLocked(classLoader, resourcesImpl);
+            }
+            return resources;
+        }
+    }
+
+    /**
      * Gets or creates a new Resources object associated with the IBinder token. References returned
      * by this method live as long as the Activity, meaning they can be cached and used by the
      * Activity even after a configuration change. If any other parameter is changed
@@ -425,92 +616,8 @@
                 displayId,
                 overrideConfig != null ? new Configuration(overrideConfig) : null, // Copy
                 compatInfo);
-
         classLoader = classLoader != null ? classLoader : ClassLoader.getSystemClassLoader();
-
-        final boolean findSystemLocales;
-        final boolean hasNonSystemLocales;
-        synchronized (this) {
-            findSystemLocales = (mSystemLocales.length == 0);
-            hasNonSystemLocales = mHasNonSystemLocales;
-
-            if (DEBUG) {
-                Throwable here = new Throwable();
-                here.fillInStackTrace();
-                Slog.w(TAG, "!! Get resources for activity=" + activityToken + " key=" + key, here);
-            }
-
-            if (activityToken != null) {
-                ResourcesImpl resourcesImpl = findResourcesImplForKey(key);
-                if (resourcesImpl != null) {
-                    if (DEBUG) {
-                        Slog.d(TAG, "- using existing impl=" + resourcesImpl);
-                    }
-                    return getOrCreateResourcesForActivityLocked(activityToken, classLoader,
-                            resourcesImpl);
-                }
-
-                // We will create the ResourcesImpl object outside of holding this lock.
-
-            } else {
-                // Clean up any dead references so they don't pile up.
-                ArrayUtils.unstableRemoveIf(mResourceReferences, sEmptyReferencePredicate);
-
-                // Not tied to an Activity, find a shared Resources that has the right ResourcesImpl
-                ResourcesImpl resourcesImpl = findResourcesImplForKey(key);
-                if (resourcesImpl != null) {
-                    if (DEBUG) {
-                        Slog.d(TAG, "- using existing impl=" + resourcesImpl);
-                    }
-                    return getOrCreateResourcesLocked(classLoader, resourcesImpl);
-                }
-
-                // We will create the ResourcesImpl object outside of holding this lock.
-            }
-        }
-
-        // If we're here, we didn't find a suitable ResourcesImpl to use, so create one now.
-        ResourcesImpl resourcesImpl = createResourcesImpl(key);
-
-        final String[] systemLocales = findSystemLocales
-                ? AssetManager.getSystem().getLocales() : null;
-        final String[] nonSystemLocales = resourcesImpl.getAssets().getNonSystemLocales();
-        // Avoid checking for non-pseudo-locales if we already know there were some from a previous
-        // Resources. The default value (for when hasNonSystemLocales is true) doesn't matter,
-        // since mHasNonSystemLocales will also be true, and thus isPseudoLocalesOnly would not be
-        // able to affect mHasNonSystemLocales.
-        final boolean isPseudoLocalesOnly = hasNonSystemLocales ||
-                LocaleList.isPseudoLocalesOnly(nonSystemLocales);
-
-        synchronized (this) {
-            if (mSystemLocales.length == 0) {
-                mSystemLocales = systemLocales;
-            }
-            mNonSystemLocales.addAll(Arrays.asList(nonSystemLocales));
-            mHasNonSystemLocales = mHasNonSystemLocales || !isPseudoLocalesOnly;
-
-            ResourcesImpl existingResourcesImpl = findResourcesImplForKey(key);
-            if (existingResourcesImpl != null) {
-                if (DEBUG) {
-                    Slog.d(TAG, "- got beat! existing impl=" + existingResourcesImpl
-                            + " new impl=" + resourcesImpl);
-                }
-                resourcesImpl.getAssets().close();
-                resourcesImpl = existingResourcesImpl;
-            } else {
-                // Add this ResourcesImpl to the cache.
-                mResourceImpls.put(key, new WeakReference<>(resourcesImpl));
-            }
-
-            final Resources resources;
-            if (activityToken != null) {
-                resources = getOrCreateResourcesForActivityLocked(activityToken, classLoader,
-                        resourcesImpl);
-            } else {
-                resources = getOrCreateResourcesLocked(classLoader, resourcesImpl);
-            }
-            return resources;
-        }
+        return getOrCreateResources(activityToken, key, classLoader);
     }
 
     /**
@@ -524,34 +631,84 @@
      */
     public void updateResourcesForActivity(@NonNull IBinder activityToken,
             @Nullable Configuration overrideConfig) {
-        final ClassLoader classLoader;
-        final ResourcesKey oldKey;
         synchronized (this) {
-            // Extract the ResourcesKey that was last used to create the Resources for this
-            // activity.
-            WeakReference<Resources> weakResRef = mActivityResourceReferences.get(activityToken);
-            final Resources resources = weakResRef != null ? weakResRef.get() : null;
-            if (resources == null) {
-                Slog.e(TAG, "can't update resources for uncached activity " + activityToken);
+            final ActivityResources activityResources = getOrCreateActivityResourcesStructLocked(
+                    activityToken);
+
+            if (Objects.equals(activityResources.overrideConfig, overrideConfig)) {
+                // They are the same, no work to do.
                 return;
             }
 
-            classLoader = resources.getClassLoader();
-            oldKey = findKeyForResourceImpl(resources.getImpl());
-            if (oldKey == null) {
-                Slog.e(TAG, "can't find ResourcesKey for resources impl=" + resources.getImpl());
-                return;
+            // Grab a copy of the old configuration so we can create the delta's of each
+            // Resources object associated with this Activity.
+            final Configuration oldConfig = new Configuration(activityResources.overrideConfig);
+
+            // Update the Activity's base override.
+            if (overrideConfig != null) {
+                activityResources.overrideConfig.setTo(overrideConfig);
+            } else {
+                activityResources.overrideConfig.setToDefaults();
+            }
+
+            final boolean activityHasOverrideConfig =
+                    !activityResources.overrideConfig.equals(Configuration.EMPTY);
+
+            // Rebase each Resources associated with this Activity.
+            final int refCount = activityResources.activityResources.size();
+            for (int i = 0; i < refCount; i++) {
+                WeakReference<Resources> weakResRef = activityResources.activityResources.get(i);
+                Resources resources = weakResRef.get();
+                if (resources == null) {
+                    continue;
+                }
+
+                // Extract the ResourcesKey that was last used to create the Resources for this
+                // activity.
+                final ResourcesKey oldKey = findKeyForResourceImplLocked(resources.getImpl());
+                if (oldKey == null) {
+                    Slog.e(TAG, "can't find ResourcesKey for resources impl="
+                            + resources.getImpl());
+                    continue;
+                }
+
+                // Build the new override configuration for this ResourcesKey.
+                final Configuration rebasedOverrideConfig = new Configuration();
+                if (overrideConfig != null) {
+                    rebasedOverrideConfig.setTo(overrideConfig);
+                }
+
+                if (activityHasOverrideConfig && oldKey.hasOverrideConfiguration()) {
+                    // Generate a delta between the old base Activity override configuration and
+                    // the actual final override configuration that was used to figure out the real
+                    // delta this Resources object wanted.
+                    Configuration overrideOverrideConfig = Configuration.generateDelta(
+                            oldConfig, oldKey.mOverrideConfiguration);
+                    rebasedOverrideConfig.updateFrom(overrideOverrideConfig);
+                }
+
+                // Create the new ResourcesKey with the rebased override config.
+                final ResourcesKey newKey = new ResourcesKey(oldKey.mResDir, oldKey.mSplitResDirs,
+                        oldKey.mOverlayDirs, oldKey.mLibDirs, oldKey.mDisplayId,
+                        rebasedOverrideConfig, oldKey.mCompatInfo);
+
+                ResourcesImpl resourcesImpl = findResourcesImplForKeyLocked(newKey);
+                if (resourcesImpl == null) {
+                    resourcesImpl = createResourcesImpl(newKey);
+                }
+
+                if (resourcesImpl != resources.getImpl()) {
+                    // Set the ResourcesImpl, updating it for all users of this Resources object.
+                    resources.setImpl(resourcesImpl);
+                }
             }
         }
-
-        // Update the Resources object with the new override config and all of the existing
-        // settings.
-        getResources(activityToken, oldKey.mResDir, oldKey.mSplitResDirs, oldKey.mOverlayDirs,
-                oldKey.mLibDirs, oldKey.mDisplayId, overrideConfig, oldKey.mCompatInfo,
-                classLoader);
     }
 
     /* package */ void setDefaultLocalesLocked(@NonNull LocaleList locales) {
+        if (mSystemLocales == null) {
+            throw new RuntimeException("ResourcesManager is not ready to negotiate locales.");
+        }
         final int bestLocale;
         if (mHasNonSystemLocales) {
             bestLocale = locales.getFirstMatchIndexWithEnglishSupported(mNonSystemLocales);
@@ -575,7 +732,7 @@
         int changes = mResConfiguration.updateFrom(config);
         // Things might have changed in display manager, so clear the cached displays.
         mDisplays.clear();
-        DisplayMetrics defaultDisplayMetrics = getDisplayMetricsLocked();
+        DisplayMetrics defaultDisplayMetrics = getDisplayMetrics();
 
         if (compat != null && (mResCompatibilityInfo == null ||
                 !mResCompatibilityInfo.equals(compat))) {
@@ -629,7 +786,7 @@
                     }
                     tmpConfig.setTo(localeAdjustedConfig);
                     if (!isDefaultDisplay) {
-                        dm = getDisplayMetricsLocked(displayId);
+                        dm = getDisplayMetrics(displayId);
                         applyNonDefaultDisplayMetricsToConfiguration(dm, tmpConfig);
                     }
                     if (hasOverrideConfiguration) {
@@ -649,4 +806,4 @@
 
         return changes != 0;
     }
-}
\ No newline at end of file
+}
diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
index 2987fbc..bdc4404 100644
--- a/core/java/android/app/SystemServiceRegistry.java
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -882,7 +882,12 @@
         public final T getService(ContextImpl ctx) {
             synchronized (StaticApplicationContextServiceFetcher.this) {
                 if (mCachedInstance == null) {
-                    mCachedInstance = createService(ctx.getApplicationContext());
+                    Context appContext = ctx.getApplicationContext();
+                    // If the application context is null, we're either in the system process or
+                    // it's the application context very early in app initialization. In both these
+                    // cases, the passed-in ContextImpl will not be freed, so it's safe to pass it
+                    // to the service. http://b/27532714 .
+                    mCachedInstance = createService(appContext != null ? appContext : ctx);
                 }
                 return mCachedInstance;
             }
diff --git a/core/java/android/app/admin/DevicePolicyManager.java b/core/java/android/app/admin/DevicePolicyManager.java
index 518fc4f..6b4771c 100644
--- a/core/java/android/app/admin/DevicePolicyManager.java
+++ b/core/java/android/app/admin/DevicePolicyManager.java
@@ -71,6 +71,7 @@
 import java.security.spec.InvalidKeySpecException;
 import java.security.spec.PKCS8EncodedKeySpec;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.Set;
@@ -2782,7 +2783,7 @@
      * compromised, certificates it had already installed will be protected.
      *
      * <p>If the installer must have access to the credentials, call
-     * {@link #installKeyPair(ComponentName, PrivateKey, Certificate, String, boolean)} instead.
+     * {@link #installKeyPair(ComponentName, PrivateKey, Certificate[], String, boolean)} instead.
      *
      * @param admin Which {@link DeviceAdminReceiver} this request is associated with, or
      *            {@code null} if calling from a delegated certificate installer.
@@ -2796,13 +2797,14 @@
      */
     public boolean installKeyPair(@Nullable ComponentName admin, @NonNull PrivateKey privKey,
             @NonNull Certificate cert, @NonNull String alias) {
-        return installKeyPair(admin, privKey, cert, alias, false);
+        return installKeyPair(admin, privKey, new Certificate[] {cert}, alias, false);
     }
 
     /**
      * Called by a device or profile owner, or delegated certificate installer, to install a
-     * certificate and corresponding private key. All apps within the profile will be able to access
-     * the certificate and use the private key, given direct user approval.
+     * certificate chain and corresponding private key for the leaf certificate. All apps within the
+     * profile will be able to access the certificate chain and use the private key, given direct
+     * user approval.
      *
      * <p>The caller of this API may grant itself access to the certificate and private key
      * immediately, without user approval. It is a best practice not to request this unless strictly
@@ -2811,7 +2813,9 @@
      * @param admin Which {@link DeviceAdminReceiver} this request is associated with, or
      *        {@code null} if calling from a delegated certificate installer.
      * @param privKey The private key to install.
-     * @param cert The certificate to install.
+     * @param certs The certificate chain to install. The chain should start with the leaf
+     *        certificate and include the chain of trust in order. This will be returned by
+     *        {@link android.security.KeyChain#getCertificateChain}.
      * @param alias The private key alias under which to install the certificate. If a certificate
      *        with that alias already exists, it will be overwritten.
      * @param requestAccess {@code true} to request that the calling app be granted access to the
@@ -2820,14 +2824,20 @@
      * @return {@code true} if the keys were installed, {@code false} otherwise.
      * @throws SecurityException if {@code admin} is not {@code null} and not a device or profile
      *         owner.
+     * @see android.security.KeyChain#getCertificateChain
      */
     public boolean installKeyPair(@Nullable ComponentName admin, @NonNull PrivateKey privKey,
-            @NonNull Certificate cert, @NonNull String alias, boolean requestAccess) {
+            @NonNull Certificate[] certs, @NonNull String alias, boolean requestAccess) {
         try {
-            final byte[] pemCert = Credentials.convertToPem(cert);
+            final byte[] pemCert = Credentials.convertToPem(certs[0]);
+            byte[] pemChain = null;
+            if (certs.length > 1) {
+                pemChain = Credentials.convertToPem(Arrays.copyOfRange(certs, 1, certs.length));
+            }
             final byte[] pkcs8Key = KeyFactory.getInstance(privKey.getAlgorithm())
                     .getKeySpec(privKey, PKCS8EncodedKeySpec.class).getEncoded();
-            return mService.installKeyPair(admin, pkcs8Key, pemCert, alias, requestAccess);
+            return mService.installKeyPair(admin, pkcs8Key, pemCert, pemChain, alias,
+                    requestAccess);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         } catch (NoSuchAlgorithmException | InvalidKeySpecException e) {
@@ -3736,24 +3746,22 @@
      *
      * @param admin The name of the admin component to check.
      * @param info Device owner information which will be displayed instead of the user owner info.
-     * @return Whether the device owner information has been set.
      * @throws SecurityException if {@code admin} is not a device owner.
      */
-    public boolean setDeviceOwnerLockScreenInfo(@NonNull ComponentName admin, String info) {
+    public void setDeviceOwnerLockScreenInfo(@NonNull ComponentName admin, CharSequence info) {
         if (mService != null) {
             try {
-                return mService.setDeviceOwnerLockScreenInfo(admin, info);
+                mService.setDeviceOwnerLockScreenInfo(admin, info);
             } catch (RemoteException re) {
                 throw re.rethrowFromSystemServer();
             }
         }
-        return false;
     }
 
     /**
      * @return The device owner information. If it is not set returns {@code null}.
      */
-    public String getDeviceOwnerLockScreenInfo() {
+    public CharSequence getDeviceOwnerLockScreenInfo() {
         if (mService != null) {
             try {
                 return mService.getDeviceOwnerLockScreenInfo();
@@ -5934,7 +5942,7 @@
     /**
      * Called by a profile owner of a managed profile to set the color used for customization. This
      * color is used as background color of the confirm credentials screen for that user. The
-     * default color is {@link android.graphics.Color#GRAY}.
+     * default color is teal (#00796B).
      * <p>
      * The confirm credentials screen can be created using
      * {@link android.app.KeyguardManager#createConfirmDeviceCredentialIntent}.
diff --git a/core/java/android/app/admin/IDevicePolicyManager.aidl b/core/java/android/app/admin/IDevicePolicyManager.aidl
index 39c3a44..c3d5ed9 100644
--- a/core/java/android/app/admin/IDevicePolicyManager.aidl
+++ b/core/java/android/app/admin/IDevicePolicyManager.aidl
@@ -135,8 +135,8 @@
     void clearProfileOwner(in ComponentName who);
     boolean hasUserSetupCompleted();
 
-    boolean setDeviceOwnerLockScreenInfo(in ComponentName who, String deviceOwnerInfo);
-    String getDeviceOwnerLockScreenInfo();
+    void setDeviceOwnerLockScreenInfo(in ComponentName who, CharSequence deviceOwnerInfo);
+    CharSequence getDeviceOwnerLockScreenInfo();
 
     String[] setPackagesSuspended(in ComponentName admin, in String[] packageNames, boolean suspended);
     boolean getPackageSuspended(in ComponentName admin, String packageName);
@@ -146,7 +146,7 @@
     void enforceCanManageCaCerts(in ComponentName admin);
 
     boolean installKeyPair(in ComponentName who, in byte[] privKeyBuffer, in byte[] certBuffer,
-            String alias, boolean requestAccess);
+            in byte[] certChainBuffer, String alias, boolean requestAccess);
     boolean removeKeyPair(in ComponentName who, String alias);
     void choosePrivateKeyAlias(int uid, in Uri uri, in String alias, IBinder aliasCallback);
 
diff --git a/core/java/android/bluetooth/BluetoothGatt.java b/core/java/android/bluetooth/BluetoothGatt.java
index 68442ea..b8a40dc 100644
--- a/core/java/android/bluetooth/BluetoothGatt.java
+++ b/core/java/android/bluetooth/BluetoothGatt.java
@@ -422,7 +422,7 @@
                     try {
                         mAuthRetry = true;
                         mService.writeDescriptor(mClientIf, address, handle,
-                            descriptor.getCharacteristic().getWriteType(),
+                            BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT,
                             AUTHENTICATION_MITM, descriptor.getValue());
                         return;
                     } catch (RemoteException e) {
@@ -545,7 +545,6 @@
     /*package*/ BluetoothGattCharacteristic getCharacteristicById(BluetoothDevice device, int instanceId) {
         for(BluetoothGattService svc : mServices) {
             for(BluetoothGattCharacteristic charac : svc.getCharacteristics()) {
-                Log.w(TAG, "getCharacteristicById() comparing " + charac.getInstanceId() + " and " + instanceId);
                 if (charac.getInstanceId() == instanceId)
                     return charac;
             }
@@ -944,7 +943,8 @@
 
         try {
             mService.writeDescriptor(mClientIf, device.getAddress(), descriptor.getInstanceId(),
-                characteristic.getWriteType(), AUTHENTICATION_NONE, descriptor.getValue());
+                BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT, AUTHENTICATION_NONE,
+                descriptor.getValue());
         } catch (RemoteException e) {
             Log.e(TAG,"",e);
             mDeviceBusy = false;
diff --git a/core/java/android/bluetooth/BluetoothPbapClient.java b/core/java/android/bluetooth/BluetoothPbapClient.java
index 736e55d..eab4c6f 100644
--- a/core/java/android/bluetooth/BluetoothPbapClient.java
+++ b/core/java/android/bluetooth/BluetoothPbapClient.java
@@ -40,7 +40,6 @@
         "android.bluetooth.pbap.profile.action.CONNECTION_STATE_CHANGED";
 
     private IBluetoothPbapClient mService;
-    private BluetoothDevice mDevice;
     private final Context mContext;
     private ServiceListener mServiceListener;
     private BluetoothAdapter mAdapter;
@@ -173,7 +172,6 @@
         }
         if (mService != null && isEnabled() && isValidDevice(device)) {
             try {
-                mDevice = device;
                 return mService.connect(device);
             } catch (RemoteException e) {
                 Log.e(TAG, Log.getStackTraceString(new Throwable()));
@@ -193,13 +191,13 @@
      * @return false on error,
      *               true otherwise
      */
-    public boolean disconnect() {
+    public boolean disconnect(BluetoothDevice device) {
         if (DBG) {
-            log("disconnect(" + mDevice + ")");
+            log("disconnect(" + device + ")" + new Exception() );
         }
-        if (mService != null && isEnabled() && isValidDevice(mDevice)) {
+        if (mService != null && isEnabled() && isValidDevice(device)) {
             try {
-                mService.disconnect(mDevice);
+                mService.disconnect(device);
                 return true;
             } catch (RemoteException e) {
               Log.e(TAG, Log.getStackTraceString(new Throwable()));
@@ -328,4 +326,66 @@
        }
        return false;
     }
+
+    /**
+     * Set priority of the profile
+     *
+     * <p> The device should already be paired.
+     *  Priority can be one of {@link #PRIORITY_ON} or
+     * {@link #PRIORITY_OFF},
+     *
+     * @param device Paired bluetooth device
+     * @param priority
+     * @return true if priority is set, false on error
+     */
+    public boolean setPriority(BluetoothDevice device, int priority) {
+        if (DBG) {
+            log("setPriority(" + device + ", " + priority + ")");
+        }
+        if (mService != null && isEnabled() &&
+            isValidDevice(device)) {
+            if (priority != BluetoothProfile.PRIORITY_OFF &&
+                priority != BluetoothProfile.PRIORITY_ON) {
+              return false;
+            }
+            try {
+                return mService.setPriority(device, priority);
+            } catch (RemoteException e) {
+                Log.e(TAG, Log.getStackTraceString(new Throwable()));
+                return false;
+            }
+        }
+        if (mService == null) {
+            Log.w(TAG, "Proxy not attached to service");
+        }
+        return false;
+    }
+
+    /**
+     * Get the priority of the profile.
+     *
+     * <p> The priority can be any of:
+     * {@link #PRIORITY_AUTO_CONNECT}, {@link #PRIORITY_OFF},
+     * {@link #PRIORITY_ON}, {@link #PRIORITY_UNDEFINED}
+     *
+     * @param device Bluetooth device
+     * @return priority of the device
+     */
+    public int getPriority(BluetoothDevice device) {
+        if (VDBG) {
+            log("getPriority(" + device + ")");
+        }
+        if (mService != null && isEnabled() && isValidDevice(device)) {
+            try {
+                return mService.getPriority(device);
+            } catch (RemoteException e) {
+                Log.e(TAG, Log.getStackTraceString(new Throwable()));
+                return PRIORITY_OFF;
+            }
+        }
+        if (mService == null) {
+            Log.w(TAG, "Proxy not attached to service");
+        }
+        return PRIORITY_OFF;
+    }
 }
diff --git a/core/java/android/bluetooth/IBluetoothPbapClient.aidl b/core/java/android/bluetooth/IBluetoothPbapClient.aidl
index b26ea29..6d4c5a6 100644
--- a/core/java/android/bluetooth/IBluetoothPbapClient.aidl
+++ b/core/java/android/bluetooth/IBluetoothPbapClient.aidl
@@ -29,4 +29,6 @@
     List<BluetoothDevice> getConnectedDevices();
     List<BluetoothDevice> getDevicesMatchingConnectionStates(in int[] states);
     int getConnectionState(in BluetoothDevice device);
+    boolean setPriority(in BluetoothDevice device, int priority);
+    int getPriority(in BluetoothDevice device);
 }
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index 66e0ada..10259be 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -1581,14 +1581,6 @@
             = "android.intent.extra.UNINSTALL_ALL_USERS";
 
     /**
-     * Specified when the uninstall confirmation dialog is not required to be shown.
-     * Use with {@link #ACTION_UNINSTALL_PACKAGE}
-     * @hide
-     */
-    public static final String EXTRA_SKIP_UNINSTALL_CONFIRMATION =
-            "android.intent.extra.SKIP_UNINSTALL_CONFIRMATION";
-
-    /**
      * A string associated with a {@link #ACTION_UPGRADE_SETUP} activity
      * describing the last run version of the platform that was setup.
      * @hide
diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
index e3fb161..6fce36b 100644
--- a/core/java/android/content/pm/IPackageManager.aidl
+++ b/core/java/android/content/pm/IPackageManager.aidl
@@ -316,6 +316,12 @@
     int getApplicationEnabledSetting(in String packageName, int userId);
 
     /**
+     * Logs process start information (including APK hash) to the security log.
+     */
+    void logAppProcessStartIfNeeded(String processName, int uid, String seinfo, String apkFile,
+            int pid);
+
+    /**
      * As per {@link android.content.pm.PackageManager#flushPackageRestrictionsAsUser}.
      */
     void flushPackageRestrictionsAsUser(in int userId);
@@ -431,10 +437,9 @@
     void performFstrimIfNeeded();
 
     /**
-     * Ask the package manager to extract packages if needed, to save
-     * the VM unzipping the APK in memory during launch.
+     * Ask the package manager to update packages if needed.
      */
-    void extractPackagesIfNeeded();
+    void updatePackagesIfNeeded();
 
     /**
      * Notify the package manager that a package is going to be used.
diff --git a/core/java/android/content/pm/IShortcutService.aidl b/core/java/android/content/pm/IShortcutService.aidl
index 8f9dcfc..31d377b 100644
--- a/core/java/android/content/pm/IShortcutService.aidl
+++ b/core/java/android/content/pm/IShortcutService.aidl
@@ -47,4 +47,8 @@
     int getIconMaxDimensions(String packageName, int userId);
 
     void resetThrottling(); // system only API for developer opsions
+
+    byte[] getBackupPayload(int user);
+
+    void applyRestore(in byte[] payload, int user);
 }
\ No newline at end of file
diff --git a/core/java/android/content/pm/ShortcutInfo.java b/core/java/android/content/pm/ShortcutInfo.java
index ae75e3f..fbe35a65 100644
--- a/core/java/android/content/pm/ShortcutInfo.java
+++ b/core/java/android/content/pm/ShortcutInfo.java
@@ -34,18 +34,20 @@
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
+// TODO Enhance javadoc
 /**
- * TODO Enhance javadoc
  *
- * Represents a shortcut form an application.
+ * Represents a shortcut from an application.
  *
- * Notes...
- * - If an {@link Icon} is of a resource, then we'll just persist the package name and resource ID.
+ * <p>Notes about icons:
+ * <ul>
+ *     <li>If an {@link Icon} is a resource, the system keeps the package name and the resource ID.
+ *     Otherwise, the bitmap is fetched when it's registered to ShortcutManager,
+ *     then shrunk if necessary, and persisted.
+ *     <li>The system disallows byte[] icons, because they can easily go over the binder size limit.
+ * </ul>
  *
- *   Otherwise, the bitmap will be fetched when it's registered to ShortcutManager, then *shrunk*
- *   if necessary, and persisted.
- *
- *   We will disallow byte[] icons, because they can easily go over binder size limit.
+ * @see {@link ShortcutManager}.
  */
 public class ShortcutInfo implements Parcelable {
     /* @hide */
@@ -118,6 +120,9 @@
     @NonNull
     private String mTitle;
 
+    @Nullable
+    private String mText;
+
     /**
      * Intent *with extras removed*.
      */
@@ -157,6 +162,7 @@
         mActivityComponent = b.mActivityComponent;
         mIcon = b.mIcon;
         mTitle = b.mTitle;
+        mText = b.mText;
         mIntent = b.mIntent;
         if (mIntent != null) {
             final Bundle intentExtras = mIntent.getExtras();
@@ -176,6 +182,7 @@
      * @hide
      */
     public void enforceMandatoryFields() {
+        Preconditions.checkStringNotEmpty(mId, "Shortcut ID must be provided");
         Preconditions.checkStringNotEmpty(mTitle, "Shortcut title must be provided");
         Preconditions.checkNotNull(mIntent, "Shortcut Intent must be provided");
     }
@@ -195,16 +202,17 @@
             if ((cloneFlags & CLONE_REMOVE_ICON) == 0) {
                 mIcon = source.mIcon;
                 mBitmapPath = source.mBitmapPath;
+                mIconResourceId = source.mIconResourceId;
             }
 
             mTitle = source.mTitle;
+            mText = source.mText;
             if ((cloneFlags & CLONE_REMOVE_INTENT) == 0) {
                 mIntent = source.mIntent;
                 mIntentPersistableExtras = source.mIntentPersistableExtras;
             }
             mWeight = source.mWeight;
             mExtras = source.mExtras;
-            mIconResourceId = source.mIconResourceId;
         } else {
             // Set this bit.
             mFlags |= FLAG_KEY_FIELDS_ONLY;
@@ -244,6 +252,9 @@
         if (source.mTitle != null) {
             mTitle = source.mTitle;
         }
+        if (source.mText != null) {
+            mText = source.mText;
+        }
         if (source.mIntent != null) {
             mIntent = source.mIntent;
             mIntentPersistableExtras = source.mIntentPersistableExtras;
@@ -305,6 +316,8 @@
 
         private String mTitle;
 
+        private String mText;
+
         private Intent mIntent;
 
         private int mWeight;
@@ -360,6 +373,9 @@
 
         /**
          * Sets the title of a shortcut.  This is a mandatory field.
+         *
+         * <p>This field is intended for a concise description of a shortcut displayed under
+         * an icon.  The recommend max length is 10 characters.
          */
         @NonNull
         public Builder setTitle(@NonNull String title) {
@@ -368,6 +384,18 @@
         }
 
         /**
+         * Sets the text of a shortcut.  This is an optional field.
+         *
+         * <p>This field is intended to be more descriptive than the shortcut title.
+         * The recommend max length is 25 characters.
+         */
+        @NonNull
+        public Builder setText(@NonNull String text) {
+            mText = Preconditions.checkStringNotEmpty(text, "text");
+            return this;
+        }
+
+        /**
          * Sets the intent of a shortcut.  This is a mandatory field.  The extras must only contain
          * persistable information.  (See {@link PersistableBundle}).
          */
@@ -457,6 +485,14 @@
     }
 
     /**
+     * Return the shortcut text.
+     */
+    @Nullable
+    public String getText() {
+        return mText;
+    }
+
+    /**
      * Return the intent.
      *
      * <p>All shortcuts must have an intent, but this method will return null when
@@ -630,6 +666,7 @@
         mActivityComponent = source.readParcelable(cl);
         mIcon = source.readParcelable(cl);
         mTitle = source.readString();
+        mText = source.readString();
         mIntent = source.readParcelable(cl);
         mIntentPersistableExtras = source.readParcelable(cl);
         mWeight = source.readInt();
@@ -647,6 +684,7 @@
         dest.writeParcelable(mActivityComponent, flags);
         dest.writeParcelable(mIcon, flags);
         dest.writeString(mTitle);
+        dest.writeString(mText);
         dest.writeParcelable(mIntent, flags);
         dest.writeParcelable(mIntentPersistableExtras, flags);
         dest.writeInt(mWeight);
@@ -708,6 +746,9 @@
         sb.append(", title=");
         sb.append(secure ? "***" : mTitle);
 
+        sb.append(", text=");
+        sb.append(secure ? "***" : mText);
+
         sb.append(", icon=");
         sb.append(mIcon);
 
@@ -744,7 +785,8 @@
 
     /** @hide */
     public ShortcutInfo(String id, String packageName, ComponentName activityComponent,
-            Icon icon, String title, Intent intent, PersistableBundle intentPersistableExtras,
+            Icon icon, String title, String text, Intent intent,
+            PersistableBundle intentPersistableExtras,
             int weight, PersistableBundle extras, long lastChangedTimestamp,
             int flags, int iconResId, String bitmapPath) {
         mId = id;
@@ -752,6 +794,7 @@
         mActivityComponent = activityComponent;
         mIcon = icon;
         mTitle = title;
+        mText = text;
         mIntent = intent;
         mIntentPersistableExtras = intentPersistableExtras;
         mWeight = weight;
diff --git a/core/java/android/content/pm/ShortcutManager.java b/core/java/android/content/pm/ShortcutManager.java
index b247f65..e4a98b5 100644
--- a/core/java/android/content/pm/ShortcutManager.java
+++ b/core/java/android/content/pm/ShortcutManager.java
@@ -19,15 +19,13 @@
 import android.content.Context;
 import android.os.RemoteException;
 import android.os.UserHandle;
-import android.util.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.util.List;
 
+// TODO Enhance javadoc
 /**
- * TODO Enhance javadoc
- *
  * {@link ShortcutManager} manages shortcuts created by applications.
  *
  * <h3>Dynamic shortcuts and pinned shortcuts</h3>
@@ -66,15 +64,18 @@
  * {@link #getRemainingCallCount()} times until the rate-limiting counter is reset,
  * which happens at a certain time every day.
  *
- * <p>An applications can use {@link #getRateLimitResetTime()} to get the next reset time.
+ * <p>An application can use {@link #getRateLimitResetTime()} to get the next reset time.
+ *
+ * <p>For testing purposes, use "Developer Options" (found in the Settings menu) to reset the
+ * internal rate-limiting counter.  Automated tests can use the following ADB shell command to
+ * achieve the same effect:</p>
+ * <pre>adb shell cmd shortcut reset-throttling</pre>
  *
  * <h3>Backup and Restore</h3>
  *
  * Shortcuts will be backed up and restored across devices.  This means all information, including
  * IDs, must be meaningful on a different device.
  *
- * TODO: Define a Broadcast to let apps update shortcuts on a restored device.
- *
  * <h3>APIs for launcher</h3>
  *
  * Launcher applications should use {@link LauncherApps} to get shortcuts that are published from
diff --git a/core/java/android/hardware/SystemSensorManager.java b/core/java/android/hardware/SystemSensorManager.java
index b75e653..7d903bd 100644
--- a/core/java/android/hardware/SystemSensorManager.java
+++ b/core/java/android/hardware/SystemSensorManager.java
@@ -31,12 +31,15 @@
 import android.util.SparseIntArray;
 import dalvik.system.CloseGuard;
 
+import com.android.internal.annotations.GuardedBy;
+
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+
 /**
  * Sensor manager implementation that communicates with the built-in
  * system sensors.
@@ -55,7 +58,9 @@
     private static native boolean nativeIsDataInjectionEnabled(long nativeInstance);
 
     private static final Object sLock = new Object();
-    private static boolean sSensorModuleInitialized = false;
+    @GuardedBy("sLock")
+    private static boolean sNativeClassInited = false;
+    @GuardedBy("sLock")
     private static InjectEventQueue sInjectEventQueue = null;
 
     private final ArrayList<Sensor> mFullSensorsList = new ArrayList<>();
@@ -84,8 +89,8 @@
     /** {@hide} */
     public SystemSensorManager(Context context, Looper mainLooper) {
         synchronized(sLock) {
-            if (!sSensorModuleInitialized) {
-                sSensorModuleInitialized = true;
+            if (!sNativeClassInited) {
+                sNativeClassInited = true;
                 nativeClassInit();
             }
         }
diff --git a/core/java/android/net/NetworkPolicyManager.java b/core/java/android/net/NetworkPolicyManager.java
index 8738424..e464a4a 100644
--- a/core/java/android/net/NetworkPolicyManager.java
+++ b/core/java/android/net/NetworkPolicyManager.java
@@ -57,6 +57,10 @@
     public static final int RULE_REJECT_METERED = 1;
     /** Reject traffic on all networks. */
     public static final int RULE_REJECT_ALL = 2;
+    /** Allow traffic on metered networks. */
+    public static final int RULE_ALLOW_METERED = 3;
+    /** Temporarily allow traffic on metered networks because app is on foreground. */
+    public static final int RULE_TEMPORARY_ALLOW_METERED = 4;
 
     public static final int FIREWALL_RULE_DEFAULT = 0;
     public static final int FIREWALL_RULE_ALLOW = 1;
diff --git a/services/net/java/android/net/metrics/CaptivePortalCheckResultEvent.java b/core/java/android/net/metrics/CaptivePortalCheckResultEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/CaptivePortalCheckResultEvent.java
rename to core/java/android/net/metrics/CaptivePortalCheckResultEvent.java
index 163f7e40..2239a25 100644
--- a/services/net/java/android/net/metrics/CaptivePortalCheckResultEvent.java
+++ b/core/java/android/net/metrics/CaptivePortalCheckResultEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class CaptivePortalCheckResultEvent extends IpConnectivityEvent implements Parcelable {
     public static final String TAG = "CaptivePortalCheckResultEvent";
 
diff --git a/services/net/java/android/net/metrics/CaptivePortalStateChangeEvent.java b/core/java/android/net/metrics/CaptivePortalStateChangeEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/CaptivePortalStateChangeEvent.java
rename to core/java/android/net/metrics/CaptivePortalStateChangeEvent.java
index d0cc120..00808c1 100644
--- a/services/net/java/android/net/metrics/CaptivePortalStateChangeEvent.java
+++ b/core/java/android/net/metrics/CaptivePortalStateChangeEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class CaptivePortalStateChangeEvent extends IpConnectivityEvent implements Parcelable {
     public static final String TAG = "CaptivePortalStateChangeEvent";
 
diff --git a/services/net/java/android/net/metrics/ConnectivityServiceChangeEvent.java b/core/java/android/net/metrics/ConnectivityServiceChangeEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/ConnectivityServiceChangeEvent.java
rename to core/java/android/net/metrics/ConnectivityServiceChangeEvent.java
index 92b376c..c6fcb2d 100644
--- a/services/net/java/android/net/metrics/ConnectivityServiceChangeEvent.java
+++ b/core/java/android/net/metrics/ConnectivityServiceChangeEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class ConnectivityServiceChangeEvent extends IpConnectivityEvent implements Parcelable {
     public static final String TAG = "ConnectivityServiceChangeEvent";
 
diff --git a/services/net/java/android/net/metrics/DhcpClientEvent.java b/core/java/android/net/metrics/DhcpClientEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/DhcpClientEvent.java
rename to core/java/android/net/metrics/DhcpClientEvent.java
index 2c24034..7b44664 100644
--- a/services/net/java/android/net/metrics/DhcpClientEvent.java
+++ b/core/java/android/net/metrics/DhcpClientEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class DhcpClientEvent extends IpConnectivityEvent implements Parcelable {
     public static final String TAG = "DhcpClientEvent";
 
diff --git a/services/net/java/android/net/metrics/IpConnectivityEvent.java b/core/java/android/net/metrics/IpConnectivityEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/IpConnectivityEvent.java
rename to core/java/android/net/metrics/IpConnectivityEvent.java
index f277bd0..ec42890 100644
--- a/services/net/java/android/net/metrics/IpConnectivityEvent.java
+++ b/core/java/android/net/metrics/IpConnectivityEvent.java
@@ -20,6 +20,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class IpConnectivityEvent implements Parcelable {
     // IPRM = IpReachabilityMonitor
     // DHCP = DhcpClient
diff --git a/services/net/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java b/core/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java
rename to core/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java
index a8c18d6..e71b0be 100644
--- a/services/net/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java
+++ b/core/java/android/net/metrics/IpReachabilityMonitorMessageEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class IpReachabilityMonitorMessageEvent extends IpConnectivityEvent
     implements Parcelable {
     public static final String TAG = "IpReachabilityMonitorMessageEvent";
diff --git a/services/net/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java b/core/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java
similarity index 98%
rename from services/net/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java
rename to core/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java
index 172cbf8..182b778 100644
--- a/services/net/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java
+++ b/core/java/android/net/metrics/IpReachabilityMonitorProbeEvent.java
@@ -19,6 +19,9 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 
+/**
+ * {@hide}
+ */
 public class IpReachabilityMonitorProbeEvent extends IpConnectivityEvent
     implements Parcelable {
     public static final String TAG = "IpReachabilityMonitorProbeEvent";
diff --git a/core/java/android/os/PowerManager.java b/core/java/android/os/PowerManager.java
index 8bc903b..a0a16f1 100644
--- a/core/java/android/os/PowerManager.java
+++ b/core/java/android/os/PowerManager.java
@@ -224,8 +224,6 @@
      * This is used by Gaming and VR applications to ensure the device provides
      * will provide consistent performance over a large amount of time.
      * </p>
-     *
-     * {@hide}
      */
     public static final int SUSTAINED_PERFORMANCE_WAKE_LOCK = 0x00000100;
 
diff --git a/core/java/android/os/storage/StorageVolume.java b/core/java/android/os/storage/StorageVolume.java
index c028e15..7b0d2a4 100644
--- a/core/java/android/os/storage/StorageVolume.java
+++ b/core/java/android/os/storage/StorageVolume.java
@@ -315,27 +315,34 @@
      * To gain access to descendants (child, grandchild, etc) documents, use
      * {@link DocumentsContract#buildDocumentUriUsingTree(Uri, String)}, or
      * {@link DocumentsContract#buildChildDocumentsUriUsingTree(Uri, String)} with the returned URI.
-     *
-     * <b>If your application only needs to store internal data, consider using
+     * <p>
+     * If your application only needs to store internal data, consider using
      * {@link Context#getExternalFilesDirs(String) Context.getExternalFilesDirs},
-     * {@link Context#getExternalCacheDirs()}, or
-     * {@link Context#getExternalMediaDirs()}, which require no permissions to read or write.
+     * {@link Context#getExternalCacheDirs()}, or {@link Context#getExternalMediaDirs()}, which
+     * require no permissions to read or write.
+     * <p>
+     * Access to the entire volume is only available for non-primary volumes (for the primary
+     * volume, apps can use the {@link android.Manifest.permission#READ_EXTERNAL_STORAGE} and
+     * {@link android.Manifest.permission#WRITE_EXTERNAL_STORAGE} permissions) and should be used
+     * with caution, since users are more likely to deny access when asked for entire volume access
+     * rather than specific directories.
      *
-     * <strong>NOTE: </strong>requesting access to the entire volume is not recommended and it will
-     * result in a stronger message displayed to the user, which may cause the user to reject
-     * the request.
-     *
-     * @param directoryName must be one of
-     * {@link Environment#DIRECTORY_MUSIC}, {@link Environment#DIRECTORY_PODCASTS},
-     * {@link Environment#DIRECTORY_RINGTONES}, {@link Environment#DIRECTORY_ALARMS},
-     * {@link Environment#DIRECTORY_NOTIFICATIONS}, {@link Environment#DIRECTORY_PICTURES},
-     * {@link Environment#DIRECTORY_MOVIES}, {@link Environment#DIRECTORY_DOWNLOADS},
-     * {@link Environment#DIRECTORY_DCIM}, or {@link Environment#DIRECTORY_DOCUMENTS}, or
-     * {code null} to request access to the entire volume.
-     *
+     * @param directoryName must be one of {@link Environment#DIRECTORY_MUSIC},
+     *            {@link Environment#DIRECTORY_PODCASTS}, {@link Environment#DIRECTORY_RINGTONES},
+     *            {@link Environment#DIRECTORY_ALARMS}, {@link Environment#DIRECTORY_NOTIFICATIONS},
+     *            {@link Environment#DIRECTORY_PICTURES}, {@link Environment#DIRECTORY_MOVIES},
+     *            {@link Environment#DIRECTORY_DOWNLOADS}, {@link Environment#DIRECTORY_DCIM}, or
+     *            {@link Environment#DIRECTORY_DOCUMENTS}, or {code null} to request access to the
+     *            entire volume.
+     * @return intent to request access, or {@code null} if the requested directory is invalid for
+     *         that volume.
      * @see DocumentsContract
      */
-    public Intent createAccessIntent(String directoryName) {
+    public @Nullable Intent createAccessIntent(String directoryName) {
+        if ((isPrimary() && directoryName == null) ||
+                (directoryName != null && !Environment.isStandardDirectory(directoryName))) {
+            return null;
+        }
         final Intent intent = new Intent(ACTION_OPEN_EXTERNAL_DIRECTORY);
         intent.putExtra(EXTRA_STORAGE_VOLUME, this);
         intent.putExtra(EXTRA_DIRECTORY_NAME, directoryName);
diff --git a/core/java/android/print/PageRange.java b/core/java/android/print/PageRange.java
index 57c7718..2941283 100644
--- a/core/java/android/print/PageRange.java
+++ b/core/java/android/print/PageRange.java
@@ -32,6 +32,9 @@
      */
     public static final PageRange ALL_PAGES = new PageRange(0, Integer.MAX_VALUE);
 
+    /** @hide */
+    public static final PageRange[] ALL_PAGES_ARRAY = new PageRange[]{PageRange.ALL_PAGES};
+
     private final int mStart;
     private final int mEnd;
 
diff --git a/core/java/android/printservice/PrinterDiscoverySession.java b/core/java/android/printservice/PrinterDiscoverySession.java
index cd5a903..7b9533d 100644
--- a/core/java/android/printservice/PrinterDiscoverySession.java
+++ b/core/java/android/printservice/PrinterDiscoverySession.java
@@ -18,6 +18,7 @@
 
 import android.annotation.NonNull;
 import android.content.pm.ParceledListSlice;
+import android.os.CancellationSignal;
 import android.os.RemoteException;
 import android.print.PrinterCapabilitiesInfo;
 import android.print.PrinterId;
@@ -412,11 +413,13 @@
      * service.
      *
      * @param printerId The printer to icon belongs to.
+     * @param cancellationSignal Signal used to cancel the request
      * @param callback Callback for returning the icon to the print spooler.
      *
      * @see android.print.PrinterInfo.Builder#setHasCustomPrinterIcon()
      */
     public void onRequestCustomPrinterIcon(@NonNull PrinterId printerId,
+            @NonNull CancellationSignal cancellationSignal,
             @NonNull CustomPrinterIconCallback callback) {
     }
 
@@ -533,7 +536,7 @@
         if (!mIsDestroyed && mObserver != null) {
             CustomPrinterIconCallback callback = new CustomPrinterIconCallback(printerId,
                     mObserver);
-            onRequestCustomPrinterIcon(printerId, callback);
+            onRequestCustomPrinterIcon(printerId, new CancellationSignal(), callback);
         }
     }
 
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index a78f468..ebecfdb 100755
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -7679,6 +7679,9 @@
                 BLUETOOTH_MAP_PRIORITY_PREFIX = "bluetooth_map_priority_";
         /** {@hide} */
         public static final String
+                BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX = "bluetooth_pbap_client_priority_";
+        /** {@hide} */
+        public static final String
                 BLUETOOTH_SAP_PRIORITY_PREFIX = "bluetooth_sap_priority_";
 
         /**
@@ -7834,6 +7837,14 @@
         }
 
         /**
+         * Get the key that retrieves a bluetooth pbap client priority.
+         * @hide
+         */
+        public static final String getBluetoothPbapClientPriorityKey(String address) {
+            return BLUETOOTH_PBAP_CLIENT_PRIORITY_PREFIX + address.toUpperCase(Locale.ROOT);
+        }
+
+        /**
          * Get the key that retrieves a bluetooth map priority.
          * @hide
          */
diff --git a/core/java/android/util/Pair.java b/core/java/android/util/Pair.java
index 6027d08..f96da72 100644
--- a/core/java/android/util/Pair.java
+++ b/core/java/android/util/Pair.java
@@ -16,7 +16,7 @@
 
 package android.util;
 
-import libcore.util.Objects;
+import java.util.Objects;
 
 /**
  * Container to ease passing around a tuple of two objects. This object provides a sensible
@@ -52,7 +52,7 @@
             return false;
         }
         Pair<?, ?> p = (Pair<?, ?>) o;
-        return Objects.equal(p.first, first) && Objects.equal(p.second, second);
+        return Objects.equals(p.first, first) && Objects.equals(p.second, second);
     }
 
     /**
@@ -65,6 +65,11 @@
         return (first == null ? 0 : first.hashCode()) ^ (second == null ? 0 : second.hashCode());
     }
 
+    @Override
+    public String toString() {
+        return "Pair{" + String.valueOf(first) + " " + String.valueOf(second) + "}";
+    }
+
     /**
      * Convenience method for creating an appropriately typed pair.
      * @param a the first object in the Pair
diff --git a/core/java/android/view/IWindowManager.aidl b/core/java/android/view/IWindowManager.aidl
index 7af4a1f..5bcf102 100644
--- a/core/java/android/view/IWindowManager.aidl
+++ b/core/java/android/view/IWindowManager.aidl
@@ -400,4 +400,14 @@
      * @hide
      */
     void registerShortcutKey(in long shortcutCode, IShortcutService keySubscriber);
+
+    /**
+     * Create the input consumer for wallpaper events.
+     */
+    void createWallpaperInputConsumer(out InputChannel inputChannel);
+
+    /**
+     * Remove the input consumer for wallpaper events.
+     */
+    void removeWallpaperInputConsumer();
 }
diff --git a/core/java/android/view/IWindowSession.aidl b/core/java/android/view/IWindowSession.aidl
index a1e2e94..8e1609c 100644
--- a/core/java/android/view/IWindowSession.aidl
+++ b/core/java/android/view/IWindowSession.aidl
@@ -116,14 +116,11 @@
      *  @param top The new top position
      *  @param right The new right position
      *  @param bottom The new bottom position
-     *  @param requestedWidth The new requested width
-     *  @param requestedHeight The new requested height
      *  @param deferTransactionUntilFrame Frame number from our parent (attached) to
      *  defer this action until.
      *  @param outFrame Rect in which is placed the new position/size on screen.
      */
     void repositionChild(IWindow childWindow, int left, int top, int right, int bottom,
-            int requestedWidth, int requestedHeight,
             long deferTransactionUntilFrame, out Rect outFrame);
 
     /*
diff --git a/core/java/android/view/SurfaceView.java b/core/java/android/view/SurfaceView.java
index 477ffd9..8a8fb43 100644
--- a/core/java/android/view/SurfaceView.java
+++ b/core/java/android/view/SurfaceView.java
@@ -490,7 +490,7 @@
                               | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                               | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
                               ;
-                if (!creating && !force && !mUpdateWindowNeeded) {
+                if (!creating && !force && !mUpdateWindowNeeded && !sizeChanged) {
                     mLayout.privateFlags |=
                             WindowManager.LayoutParams.PRIVATE_FLAG_PRESERVE_GEOMETRY;
                 } else {
@@ -584,18 +584,6 @@
 
                     mSurface.transferFrom(mNewSurface);
                     if (visible && mSurface.isValid()) {
-                        // We set SCALING_MODE_NO_SCALE_CROP to allow the WindowManager
-                        // to update our Surface crop without requiring a new buffer from
-                        // us. In the default mode of SCALING_MODE_FREEZE, surface geometry
-                        // state (which includes crop) is only applied when a buffer
-                        // with appropriate geometry is available. During drag resize
-                        // it is quite frequent that a matching buffer will not be available
-                        // (because we are constantly being resized and have fallen behind).
-                        // However in such situations the WindowManager still needs to be able
-                        // to update our crop to ensure we stay within the bounds of the containing
-                        // window.
-                        mSurface.setScalingMode(Surface.SCALING_MODE_NO_SCALE_CROP);
-
                         if (!mSurfaceCreated && (surfaceChanged || visibleChanged)) {
                             mSurfaceCreated = true;
                             mIsCreating = true;
@@ -666,7 +654,6 @@
                             mLocation[0], mLocation[1]));
                     mSession.repositionChild(mWindow, mWindowSpaceLeft, mWindowSpaceTop,
                             mLocation[0], mLocation[1],
-                            mWindowSpaceWidth, mWindowSpaceHeight,
                             -1, mWinFrame);
                 } catch (RemoteException ex) {
                     Log.e(TAG, "Exception from relayout", ex);
@@ -703,7 +690,6 @@
             }
             // Just using mRTLastReportedPosition as a dummy rect here
             session.repositionChild(window, left, top, right, bottom,
-                    mWindowSpaceWidth, mWindowSpaceHeight,
                     frameNumber,
                     mRTLastReportedPosition);
             // Now overwrite mRTLastReportedPosition with our values
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 6811aed..dd79e62 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -16299,8 +16299,10 @@
     /**
      * Create a snapshot of the view into a bitmap.  We should probably make
      * some form of this public, but should think about the API.
+     *
+     * @hide
      */
-    Bitmap createSnapshot(Bitmap.Config quality, int backgroundColor, boolean skipChildren) {
+    public Bitmap createSnapshot(Bitmap.Config quality, int backgroundColor, boolean skipChildren) {
         int width = mRight - mLeft;
         int height = mBottom - mTop;
 
diff --git a/core/java/android/view/ViewGroup.java b/core/java/android/view/ViewGroup.java
index 816d9c4..3f7bbdf 100644
--- a/core/java/android/view/ViewGroup.java
+++ b/core/java/android/view/ViewGroup.java
@@ -3251,8 +3251,11 @@
         }
     }
 
+    /**
+     * @hide
+     */
     @Override
-    Bitmap createSnapshot(Bitmap.Config quality, int backgroundColor, boolean skipChildren) {
+    public Bitmap createSnapshot(Bitmap.Config quality, int backgroundColor, boolean skipChildren) {
         int count = mChildrenCount;
         int[] visibilities = null;
 
@@ -3262,7 +3265,8 @@
                 View child = getChildAt(i);
                 visibilities[i] = child.getVisibility();
                 if (visibilities[i] == View.VISIBLE) {
-                    child.setVisibility(INVISIBLE);
+                    child.mViewFlags = (child.mViewFlags & ~View.VISIBILITY_MASK)
+                            | (View.INVISIBLE & View.VISIBILITY_MASK);
                 }
             }
         }
@@ -3271,7 +3275,9 @@
 
         if (skipChildren) {
             for (int i = 0; i < count; i++) {
-                getChildAt(i).setVisibility(visibilities[i]);
+                View child = getChildAt(i);
+                child.mViewFlags = (child.mViewFlags & ~View.VISIBILITY_MASK)
+                        | (visibilities[i] & View.VISIBILITY_MASK);
             }
         }
 
@@ -6749,7 +6755,8 @@
     @Override
     public void onNestedScroll(View target, int dxConsumed, int dyConsumed,
             int dxUnconsumed, int dyUnconsumed) {
-        // Do nothing
+        // Re-dispatch up the tree by default
+        dispatchNestedScroll(dxConsumed, dyConsumed, dxUnconsumed, dyUnconsumed, null);
     }
 
     /**
@@ -6757,7 +6764,8 @@
      */
     @Override
     public void onNestedPreScroll(View target, int dx, int dy, int[] consumed) {
-        // Do nothing
+        // Re-dispatch up the tree by default
+        dispatchNestedPreScroll(dx, dy, consumed, null);
     }
 
     /**
@@ -6765,7 +6773,8 @@
      */
     @Override
     public boolean onNestedFling(View target, float velocityX, float velocityY, boolean consumed) {
-        return false;
+        // Re-dispatch up the tree by default
+        return dispatchNestedFling(velocityX, velocityY, consumed);
     }
 
     /**
@@ -6773,7 +6782,8 @@
      */
     @Override
     public boolean onNestedPreFling(View target, float velocityX, float velocityY) {
-        return false;
+        // Re-dispatch up the tree by default
+        return dispatchNestedPreFling(velocityX, velocityY);
     }
 
     /**
diff --git a/core/java/android/view/Window.java b/core/java/android/view/Window.java
index 36ee3e6..2f3f0bf 100644
--- a/core/java/android/view/Window.java
+++ b/core/java/android/view/Window.java
@@ -298,7 +298,7 @@
 
     private boolean mDestroyed;
 
-    private boolean mOverlayWithDecorCaption = false;
+    private boolean mOverlayWithDecorCaptionEnabled = false;
 
     // The current window attributes.
     private final WindowManager.LayoutParams mWindowAttributes =
@@ -2139,13 +2139,13 @@
      * down. This affects only freeform windows since they display the caption.
      * @hide
      */
-    public void setOverlayDecorCaption(boolean overlayCaption) {
-        mOverlayWithDecorCaption = overlayCaption;
+    public void setOverlayWithDecorCaptionEnabled(boolean enabled) {
+        mOverlayWithDecorCaptionEnabled = enabled;
     }
 
     /** @hide */
-    public boolean getOverlayDecorCaption() {
-        return mOverlayWithDecorCaption;
+    public boolean isOverlayWithDecorCaptionEnabled() {
+        return mOverlayWithDecorCaptionEnabled;
     }
 
     /** @hide */
@@ -2181,7 +2181,7 @@
      * Called when the activity changes from fullscreen mode to multi-window mode and visa-versa.
      * @hide
      */
-    public abstract void onMultiWindowChanged();
+    public abstract void onMultiWindowModeChanged();
 
     /**
      * Called when the activity just relaunched.
diff --git a/core/java/android/view/WindowManagerPolicy.java b/core/java/android/view/WindowManagerPolicy.java
index c1392fe..23b0df2 100644
--- a/core/java/android/view/WindowManagerPolicy.java
+++ b/core/java/android/view/WindowManagerPolicy.java
@@ -415,7 +415,7 @@
          * Returns true if the window is current in multi-windowing mode. i.e. it shares the
          * screen with other application windows.
          */
-        public boolean inMultiWindowMode();
+        public boolean isInMultiWindowMode();
     }
 
     /**
diff --git a/core/java/android/view/accessibility/AccessibilityNodeInfo.java b/core/java/android/view/accessibility/AccessibilityNodeInfo.java
index bdaf291..1482111 100644
--- a/core/java/android/view/accessibility/AccessibilityNodeInfo.java
+++ b/core/java/android/view/accessibility/AccessibilityNodeInfo.java
@@ -2926,8 +2926,10 @@
         mInputType = other.mInputType;
         mLiveRegion = other.mLiveRegion;
         mDrawingOrderInParent = other.mDrawingOrderInParent;
-        if (other.mExtras != null && !other.mExtras.isEmpty()) {
-            getExtras().putAll(other.mExtras);
+        if (other.mExtras != null) {
+            mExtras = new Bundle(other.mExtras);
+        } else {
+            mExtras = null;
         }
         mRangeInfo = (other.mRangeInfo != null)
                 ? RangeInfo.obtain(other.mRangeInfo) : null;
@@ -3006,7 +3008,9 @@
         mDrawingOrderInParent = parcel.readInt();
 
         if (parcel.readInt() == 1) {
-            getExtras().putAll(parcel.readBundle());
+            mExtras = parcel.readBundle();
+        } else {
+            mExtras = null;
         }
 
         if (parcel.readInt() == 1) {
@@ -3073,9 +3077,7 @@
         mTextSelectionEnd = UNDEFINED_SELECTION_INDEX;
         mInputType = InputType.TYPE_NULL;
         mLiveRegion = View.ACCESSIBILITY_LIVE_REGION_NONE;
-        if (mExtras != null) {
-            mExtras.clear();
-        }
+        mExtras = null;
         if (mRangeInfo != null) {
             mRangeInfo.recycle();
             mRangeInfo = null;
diff --git a/core/java/android/view/inputmethod/BaseInputConnection.java b/core/java/android/view/inputmethod/BaseInputConnection.java
index a3c49c5..89dec2d 100644
--- a/core/java/android/view/inputmethod/BaseInputConnection.java
+++ b/core/java/android/view/inputmethod/BaseInputConnection.java
@@ -16,6 +16,7 @@
 
 package android.view.inputmethod;
 
+import android.annotation.CallSuper;
 import android.content.Context;
 import android.content.res.TypedArray;
 import android.os.Bundle;
@@ -154,12 +155,11 @@
     }
 
     /**
-     * Called when this InputConnection is no longer used by the InputMethodManager.
-     *
-     * @hide
+     * Default implementation calls {@link #finishComposingText()}.
      */
-    public void reportFinish() {
-        // Intentionally empty
+    @CallSuper
+    public void closeConnection() {
+        finishComposingText();
     }
 
     /**
diff --git a/core/java/android/view/inputmethod/InputConnection.java b/core/java/android/view/inputmethod/InputConnection.java
index 8002a8e..9f66429 100644
--- a/core/java/android/view/inputmethod/InputConnection.java
+++ b/core/java/android/view/inputmethod/InputConnection.java
@@ -45,6 +45,8 @@
  *     was introduced in {@link android.os.Build.VERSION_CODES#N}.</li>
  *     <li>{@link #getHandler()}}, which was introduced in
  *     {@link android.os.Build.VERSION_CODES#N}.</li>
+ *     <li>{@link #closeConnection()}}, which was introduced in
+ *     {@link android.os.Build.VERSION_CODES#N}.</li>
  * </ul>
  *
  * <h3>Implementing an IME or an editor</h3>
@@ -820,4 +822,18 @@
      * @return {@code null} to use the default {@link Handler}.
      */
     public Handler getHandler();
+
+    /**
+     * Called by the system up to only once to notify that the system is about to invalidate
+     * connection between the input method and the application.
+     *
+     * <p><strong>Editor authors</strong>: You can clear all the nested batch edit right now and
+     * you no longer need to handle subsequent callbacks on this connection, including
+     * {@link #beginBatchEdit()}}.  Note that although the system tries to call this method whenever
+     * possible, there may be a chance that this method is not called in some exceptional
+     * situations.</p>
+     *
+     * <p>Note: This does nothing when called from input methods.</p>
+     */
+    public void closeConnection();
 }
diff --git a/core/java/android/view/inputmethod/InputConnectionInspector.java b/core/java/android/view/inputmethod/InputConnectionInspector.java
index 46b2c3e..118a61f 100644
--- a/core/java/android/view/inputmethod/InputConnectionInspector.java
+++ b/core/java/android/view/inputmethod/InputConnectionInspector.java
@@ -73,6 +73,11 @@
          * {@link android.os.Build.VERSION_CODES#N} and later.
          */
         int GET_HANDLER = 1 << 5;
+        /**
+         * {@link InputConnection#closeConnection()}} is available in
+         * {@link android.os.Build.VERSION_CODES#N} and later.
+         */
+        int CLOSE_CONNECTION = 1 << 6;
     }
 
     private static final Map<Class, Integer> sMissingMethodsMap = Collections.synchronizedMap(
@@ -119,6 +124,9 @@
         if (!hasGetHandler(clazz)) {
             flags |= MissingMethodFlags.GET_HANDLER;
         }
+        if (!hasCloseConnection(clazz)) {
+            flags |= MissingMethodFlags.CLOSE_CONNECTION;
+        }
         sMissingMethodsMap.put(clazz, flags);
         return flags;
     }
@@ -178,6 +186,15 @@
         }
     }
 
+    private static boolean hasCloseConnection(@NonNull final Class clazz) {
+        try {
+            final Method method = clazz.getMethod("closeConnection");
+            return !Modifier.isAbstract(method.getModifiers());
+        } catch (NoSuchMethodException e) {
+            return false;
+        }
+    }
+
     public static String getMissingMethodFlagsAsString(@MissingMethodFlags final int flags) {
         final StringBuilder sb = new StringBuilder();
         boolean isEmpty = true;
@@ -219,6 +236,12 @@
             }
             sb.append("getHandler()");
         }
+        if ((flags & MissingMethodFlags.CLOSE_CONNECTION) != 0) {
+            if (!isEmpty) {
+                sb.append(",");
+            }
+            sb.append("closeConnection()");
+        }
         return sb.toString();
     }
 }
diff --git a/core/java/android/view/inputmethod/InputConnectionWrapper.java b/core/java/android/view/inputmethod/InputConnectionWrapper.java
index 381df49..e743f62 100644
--- a/core/java/android/view/inputmethod/InputConnectionWrapper.java
+++ b/core/java/android/view/inputmethod/InputConnectionWrapper.java
@@ -261,4 +261,12 @@
     public Handler getHandler() {
         return mTarget.getHandler();
     }
+
+    /**
+     * {@inheritDoc}
+     * @throws NullPointerException if the target is {@code null}.
+     */
+    public void closeConnection() {
+        mTarget.closeConnection();
+    }
 }
diff --git a/core/java/android/view/inputmethod/InputMethodManager.java b/core/java/android/view/inputmethod/InputMethodManager.java
index f5908a5..6879901 100644
--- a/core/java/android/view/inputmethod/InputMethodManager.java
+++ b/core/java/android/view/inputmethod/InputMethodManager.java
@@ -544,7 +544,7 @@
                 // reportFinish() will take effect.
                 return;
             }
-            reportFinish();
+            closeConnection();
         }
 
         @Override
diff --git a/core/java/android/widget/AbsListView.java b/core/java/android/widget/AbsListView.java
index 7cbe8de..6e1dff9 100644
--- a/core/java/android/widget/AbsListView.java
+++ b/core/java/android/widget/AbsListView.java
@@ -5937,6 +5937,11 @@
         public Handler getHandler() {
             return getTarget().getHandler();
         }
+
+        @Override
+        public void closeConnection() {
+            getTarget().closeConnection();
+        }
     }
 
     /**
diff --git a/core/java/android/widget/HorizontalScrollView.java b/core/java/android/widget/HorizontalScrollView.java
index f16fdd6..00f368e 100644
--- a/core/java/android/widget/HorizontalScrollView.java
+++ b/core/java/android/widget/HorizontalScrollView.java
@@ -325,16 +325,24 @@
 
         if (getChildCount() > 0) {
             final View child = getChildAt(0);
-            int width = getMeasuredWidth();
-            if (child.getMeasuredWidth() < width) {
-                final FrameLayout.LayoutParams lp = (LayoutParams) child.getLayoutParams();
+            final int widthPadding;
+            final int heightPadding;
+            final FrameLayout.LayoutParams lp = (LayoutParams) child.getLayoutParams();
+            final int targetSdkVersion = getContext().getApplicationInfo().targetSdkVersion;
+            if (targetSdkVersion >= Build.VERSION_CODES.M) {
+                widthPadding = mPaddingLeft + mPaddingRight + lp.leftMargin + lp.rightMargin;
+                heightPadding = mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin;
+            } else {
+                widthPadding = mPaddingLeft + mPaddingRight;
+                heightPadding = mPaddingTop + mPaddingBottom;
+            }
 
-                int childHeightMeasureSpec = getChildMeasureSpec(heightMeasureSpec, mPaddingTop
-                        + mPaddingBottom, lp.height);
-                width -= mPaddingLeft;
-                width -= mPaddingRight;
-                int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY);
-
+            int desiredWidth = getMeasuredWidth() - widthPadding;
+            if (child.getMeasuredWidth() < desiredWidth) {
+                final int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
+                        desiredWidth, MeasureSpec.EXACTLY);
+                final int childHeightMeasureSpec = getChildMeasureSpec(
+                        heightMeasureSpec, heightPadding, lp.height);
                 child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
             }
         }
@@ -1235,17 +1243,17 @@
     }
 
     @Override
-    protected void measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec) {
+    protected void measureChild(View child, int parentWidthMeasureSpec,
+            int parentHeightMeasureSpec) {
         ViewGroup.LayoutParams lp = child.getLayoutParams();
 
-        int childWidthMeasureSpec;
-        int childHeightMeasureSpec;
+        final int horizontalPadding = mPaddingLeft + mPaddingRight;
+        final int childWidthMeasureSpec = MeasureSpec.makeSafeMeasureSpec(
+                Math.max(0, MeasureSpec.getSize(parentWidthMeasureSpec) - horizontalPadding),
+                MeasureSpec.UNSPECIFIED);
 
-        childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec, mPaddingTop
-                + mPaddingBottom, lp.height);
-
-        childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
-
+        final int childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec,
+                mPaddingTop + mPaddingBottom, lp.height);
         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
     }
 
@@ -1257,8 +1265,11 @@
         final int childHeightMeasureSpec = getChildMeasureSpec(parentHeightMeasureSpec,
                 mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin
                         + heightUsed, lp.height);
-        final int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
-                lp.leftMargin + lp.rightMargin, MeasureSpec.UNSPECIFIED);
+        final int usedTotal = mPaddingLeft + mPaddingRight + lp.leftMargin + lp.rightMargin +
+                widthUsed;
+        final int childWidthMeasureSpec = MeasureSpec.makeSafeMeasureSpec(
+                Math.max(0, MeasureSpec.getSize(parentWidthMeasureSpec) - usedTotal),
+                MeasureSpec.UNSPECIFIED);
 
         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
     }
diff --git a/core/java/android/widget/PopupWindow.java b/core/java/android/widget/PopupWindow.java
index 18687c9..92631da 100644
--- a/core/java/android/widget/PopupWindow.java
+++ b/core/java/android/widget/PopupWindow.java
@@ -173,9 +173,6 @@
     private int mHeight = LayoutParams.WRAP_CONTENT;
     private int mLastHeight;
 
-    private int mPopupWidth;
-    private int mPopupHeight;
-
     private float mElevation;
 
     private Drawable mBackground;
@@ -1298,8 +1295,6 @@
 
         mPopupViewInitialLayoutDirectionInherited =
                 (mContentView.getRawLayoutDirection() == View.LAYOUT_DIRECTION_INHERIT);
-        mPopupWidth = p.width;
-        mPopupHeight = p.height;
     }
 
     /**
@@ -2006,7 +2001,7 @@
      * @param height the new height, must be >= 0 or -1 to ignore
      */
     public void update(View anchor, int width, int height) {
-        update(anchor, false, 0, 0, true, width, height);
+        update(anchor, false, 0, 0, width, height);
     }
 
     /**
@@ -2026,11 +2021,11 @@
      * @param height the new height, must be >= 0 or -1 to ignore
      */
     public void update(View anchor, int xoff, int yoff, int width, int height) {
-        update(anchor, true, xoff, yoff, true, width, height);
+        update(anchor, true, xoff, yoff, width, height);
     }
 
     private void update(View anchor, boolean updateLocation, int xoff, int yoff,
-            boolean updateDimension, int width, int height) {
+            int width, int height) {
 
         if (!isShowing() || mContentView == null) {
             return;
@@ -2055,13 +2050,13 @@
         final int oldX = p.x;
         final int oldY = p.y;
 
-        if (updateDimension) {
-            if (width == -1) {
-                width = mPopupWidth;
-            }
-            if (height == -1) {
-                height = mPopupHeight;
-            }
+        // If an explicit width/height has not specified, use the most recent
+        // explicitly specified value (either from setWidth/Height or update).
+        if (width == -1) {
+            width = mWidth;
+        }
+        if (height == -1) {
+            height = mHeight;
         }
 
         final boolean aboveAnchor = findDropDownPosition(anchor, p, mAnchorXoff, mAnchorYoff,
diff --git a/core/java/android/widget/ScrollView.java b/core/java/android/widget/ScrollView.java
index 3f7a07b..0555cd4 100644
--- a/core/java/android/widget/ScrollView.java
+++ b/core/java/android/widget/ScrollView.java
@@ -350,24 +350,24 @@
 
         if (getChildCount() > 0) {
             final View child = getChildAt(0);
-            final int height = getMeasuredHeight();
-            if (child.getMeasuredHeight() < height) {
-                final int widthPadding;
-                final int heightPadding;
-                final FrameLayout.LayoutParams lp = (LayoutParams) child.getLayoutParams();
-                final int targetSdkVersion = getContext().getApplicationInfo().targetSdkVersion;
-                if (targetSdkVersion >= VERSION_CODES.M) {
-                    widthPadding = mPaddingLeft + mPaddingRight + lp.leftMargin + lp.rightMargin;
-                    heightPadding = mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin;
-                } else {
-                    widthPadding = mPaddingLeft + mPaddingRight;
-                    heightPadding = mPaddingTop + mPaddingBottom;
-                }
+            final int widthPadding;
+            final int heightPadding;
+            final int targetSdkVersion = getContext().getApplicationInfo().targetSdkVersion;
+            final FrameLayout.LayoutParams lp = (LayoutParams) child.getLayoutParams();
+            if (targetSdkVersion >= VERSION_CODES.M) {
+                widthPadding = mPaddingLeft + mPaddingRight + lp.leftMargin + lp.rightMargin;
+                heightPadding = mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin;
+            } else {
+                widthPadding = mPaddingLeft + mPaddingRight;
+                heightPadding = mPaddingTop + mPaddingBottom;
+            }
 
+            final int desiredHeight = getMeasuredHeight() - heightPadding;
+            if (child.getMeasuredHeight() < desiredHeight) {
                 final int childWidthMeasureSpec = getChildMeasureSpec(
                         widthMeasureSpec, widthPadding, lp.width);
                 final int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(
-                        height - heightPadding, MeasureSpec.EXACTLY);
+                        desiredHeight, MeasureSpec.EXACTLY);
                 child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
             }
         }
@@ -1268,9 +1268,10 @@
 
         childWidthMeasureSpec = getChildMeasureSpec(parentWidthMeasureSpec, mPaddingLeft
                 + mPaddingRight, lp.width);
-
+        final int verticalPadding = mPaddingTop + mPaddingBottom;
         childHeightMeasureSpec = MeasureSpec.makeSafeMeasureSpec(
-                MeasureSpec.getSize(parentHeightMeasureSpec), MeasureSpec.UNSPECIFIED);
+                Math.max(0, MeasureSpec.getSize(parentHeightMeasureSpec) - verticalPadding),
+                MeasureSpec.UNSPECIFIED);
 
         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
     }
@@ -1283,8 +1284,11 @@
         final int childWidthMeasureSpec = getChildMeasureSpec(parentWidthMeasureSpec,
                 mPaddingLeft + mPaddingRight + lp.leftMargin + lp.rightMargin
                         + widthUsed, lp.width);
+        final int usedTotal = mPaddingTop + mPaddingBottom + lp.topMargin + lp.bottomMargin +
+                heightUsed;
         final int childHeightMeasureSpec = MeasureSpec.makeSafeMeasureSpec(
-                MeasureSpec.getSize(parentHeightMeasureSpec), MeasureSpec.UNSPECIFIED);
+                Math.max(0, MeasureSpec.getSize(parentHeightMeasureSpec) - usedTotal),
+                MeasureSpec.UNSPECIFIED);
 
         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
     }
diff --git a/core/java/android/widget/SimpleMonthView.java b/core/java/android/widget/SimpleMonthView.java
index 43cf5a1..ee716df 100644
--- a/core/java/android/widget/SimpleMonthView.java
+++ b/core/java/android/widget/SimpleMonthView.java
@@ -16,6 +16,9 @@
 
 package android.widget;
 
+import com.android.internal.R;
+import com.android.internal.widget.ExploreByTouchHelper;
+
 import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.ColorStateList;
@@ -44,14 +47,13 @@
 import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
 
-import com.android.internal.R;
-import com.android.internal.widget.ExploreByTouchHelper;
-
 import java.text.NumberFormat;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Locale;
 
+import libcore.icu.LocaleData;
+
 /**
  * A calendar-like view displaying a specified month and the appropriate selectable day numbers
  * within the specified month.
@@ -66,7 +68,6 @@
     private static final int DEFAULT_WEEK_START = Calendar.SUNDAY;
 
     private static final String MONTH_YEAR_FORMAT = "MMMMy";
-    private static final String DAY_OF_WEEK_FORMAT = "EEEEE";
 
     private static final int SELECTED_HIGHLIGHT_ALPHA = 0xB0;
 
@@ -80,6 +81,7 @@
     private final Paint mDayHighlightPaint = new Paint();
     private final Paint mDayHighlightSelectorPaint = new Paint();
 
+    /** Array of single-character weekday labels ordered by column index. */
     private final String[] mDayOfWeekLabels = new String[7];
 
     private final Calendar mCalendar;
@@ -120,7 +122,7 @@
      */
     private int mToday = DEFAULT_SELECTED_DAY;
 
-    /** The first day of the week (ex. Calendar.SUNDAY). */
+    /** The first day of the week (ex. Calendar.SUNDAY) indexed from one. */
     private int mWeekStart = DEFAULT_WEEK_START;
 
     /** The number of days (ex. 28) in the current month. */
@@ -199,13 +201,11 @@
             Log.d(LOG_TAG, "mWeekStart => " + mWeekStart);
         }
 
-        final Calendar calendar = Calendar.getInstance(mLocale);
-        calendar.setFirstDayOfWeek(mWeekStart);
-
-        final SimpleDateFormat formatter = new SimpleDateFormat(DAY_OF_WEEK_FORMAT, mLocale);
-        for (int i = 0; i < 7; i++) {
-            calendar.set(Calendar.DAY_OF_WEEK, i);
-            mDayOfWeekLabels[i] = formatter.format(calendar.getTime());
+        // Use tiny (e.g. single-character) weekday names from ICU. The indices
+        // for this list correspond to Calendar days, e.g. SUNDAY is index 1.
+        final String[] tinyWeekdayNames = LocaleData.get(mLocale).tinyWeekdayNames;
+        for (int i = 0; i < DAYS_IN_WEEK; i++) {
+            mDayOfWeekLabels[i] = tinyWeekdayNames[(mWeekStart + i - 1) % DAYS_IN_WEEK + 1];
         }
 
         if (DEBUG_WRONG_DATE) {
@@ -662,8 +662,7 @@
                 colCenterRtl = colCenter;
             }
 
-            final int dayOfWeek = (col + mWeekStart) % DAYS_IN_WEEK;
-            final String label = mDayOfWeekLabels[dayOfWeek];
+            final String label = mDayOfWeekLabels[col];
             canvas.drawText(label, colCenterRtl, rowCenter - halfLineHeight, p);
         }
     }
@@ -813,6 +812,11 @@
      */
     void setMonthParams(int selectedDay, int month, int year, int weekStart, int enabledDayStart,
             int enabledDayEnd) {
+        if (DEBUG_WRONG_DATE) {
+            Log.d(LOG_TAG, "setMonthParams(" + selectedDay + ", " + month + ", " + year + ", "
+                    + weekStart + ", " + enabledDayStart + ", " + enabledDayEnd + ")");
+        }
+
         mActivatedDay = selectedDay;
 
         if (isValidMonth(month)) {
@@ -849,6 +853,14 @@
         mTouchHelper.invalidateRoot();
 
         updateMonthYearLabel();
+
+        if (DEBUG_WRONG_DATE) {
+            Log.d(LOG_TAG, "mMonth = " + mMonth);
+            Log.d(LOG_TAG, "mDayOfWeekStart = " + mDayOfWeekStart);
+            Log.d(LOG_TAG, "mWeekStart = " + mWeekStart);
+            Log.d(LOG_TAG, "mDaysInMonth = " + mDaysInMonth);
+            Log.d(LOG_TAG, "mToday = " + mToday);
+        }
     }
 
     private static int getDaysInMonth(int month, int year) {
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index a9af654..4a68d3c 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -3411,17 +3411,10 @@
     }
 
     /**
-     * Sets whether the movement method will automatically be set to {@link LinkMovementMethod}
-     * after {@link #setText} or {@link #append} is called. The movement method is set if one of the
-     * following is true:
-     * <ul>
-     * <li>{@link #setAutoLinkMask} has been set to nonzero and links are detected in
-     * {@link #setText} or {@link #append}.
-     * <li>The input for {@link #setText} or {@link #append} contains a {@link ClickableSpan}.
-     * </ul>
-     *
-     * <p>This function does not have an immediate effect, movement method will be set only after a
-     * call to {@link #setText} or {@link #append}. The default is true.</p>
+     * Sets whether the movement method will automatically be set to
+     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
+     * set to nonzero and links are detected in {@link #setText}.
+     * The default is true.
      *
      * @attr ref android.R.styleable#TextView_linksClickable
      */
@@ -3431,14 +3424,10 @@
     }
 
     /**
-     * Returns whether the movement method will automatically be set to {@link LinkMovementMethod}
-     * after {@link #setText} or {@link #append} is called.
-     *
-     * See {@link #setLinksClickable} for details.
-     *
-     * <p>The default is true.</p>
-     *
-     * @see #setLinksClickable
+     * Returns whether the movement method will automatically be set to
+     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
+     * set to nonzero and links are detected in {@link #setText}.
+     * The default is true.
      *
      * @attr ref android.R.styleable#TextView_linksClickable
      */
@@ -4032,19 +4021,13 @@
 
         ((Editable) mText).append(text, start, end);
 
-        boolean hasClickableSpans = false;
         if (mAutoLinkMask != 0) {
-            hasClickableSpans = Linkify.addLinks((Spannable) mText, mAutoLinkMask);
-        } else if (mLinksClickable && text instanceof Spanned) {
-            ClickableSpan[] clickableSpans =
-                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
-            hasClickableSpans = clickableSpans != null && clickableSpans.length > 0;
-        }
-
-        // Do not change the movement method for text that supports text selection as it
-        // would prevent an arbitrary cursor displacement.
-        if (hasClickableSpans && mLinksClickable && !textCanBeSelected()) {
-            setMovementMethod(LinkMovementMethod.getInstance());
+            boolean linksWereAdded = Linkify.addLinks((Spannable) mText, mAutoLinkMask);
+            // Do not change the movement method for text that support text selection as it
+            // would prevent an arbitrary cursor displacement.
+            if (linksWereAdded && mLinksClickable && !textCanBeSelected()) {
+                setMovementMethod(LinkMovementMethod.getInstance());
+            }
         }
     }
 
@@ -4397,7 +4380,6 @@
             text = TextUtils.stringOrSpannedString(text);
         }
 
-        boolean hasClickableSpans = false;
         if (mAutoLinkMask != 0) {
             Spannable s2;
 
@@ -4407,32 +4389,22 @@
                 s2 = mSpannableFactory.newSpannable(text);
             }
 
-            hasClickableSpans = Linkify.addLinks(s2, mAutoLinkMask);
-            if (hasClickableSpans) {
+            if (Linkify.addLinks(s2, mAutoLinkMask)) {
                 text = s2;
-            }
-        } else if (mLinksClickable && text instanceof Spanned) {
-            ClickableSpan[] clickableSpans =
-                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
-            hasClickableSpans = clickableSpans != null && clickableSpans.length > 0;
-            if (hasClickableSpans && !(text instanceof Spannable)) {
-                text = mSpannableFactory.newSpannable(text);
-            }
-        }
+                type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
 
-        if (hasClickableSpans) {
-            type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
-            /*
-             * We must go ahead and set the text before changing the
-             * movement method, because setMovementMethod() may call
-             * setText() again to try to upgrade the buffer type.
-             */
-            mText = text;
+                /*
+                 * We must go ahead and set the text before changing the
+                 * movement method, because setMovementMethod() may call
+                 * setText() again to try to upgrade the buffer type.
+                 */
+                mText = text;
 
-            // Do not change the movement method for text that supports text selection as it
-            // would prevent an arbitrary cursor displacement.
-            if (mLinksClickable && !textCanBeSelected()) {
-                setMovementMethod(LinkMovementMethod.getInstance());
+                // Do not change the movement method for text that support text selection as it
+                // would prevent an arbitrary cursor displacement.
+                if (mLinksClickable && !textCanBeSelected()) {
+                    setMovementMethod(LinkMovementMethod.getInstance());
+                }
             }
         }
 
diff --git a/core/java/android/widget/Toolbar.java b/core/java/android/widget/Toolbar.java
index 06daf61..5b0a90a 100644
--- a/core/java/android/widget/Toolbar.java
+++ b/core/java/android/widget/Toolbar.java
@@ -106,6 +106,8 @@
  * @attr ref android.R.styleable#Toolbar_contentInsetLeft
  * @attr ref android.R.styleable#Toolbar_contentInsetRight
  * @attr ref android.R.styleable#Toolbar_contentInsetStart
+ * @attr ref android.R.styleable#Toolbar_contentInsetStartWithNavigation
+ * @attr ref android.R.styleable#Toolbar_contentInsetEndWithActions
  * @attr ref android.R.styleable#Toolbar_gravity
  * @attr ref android.R.styleable#Toolbar_logo
  * @attr ref android.R.styleable#Toolbar_logoDescription
@@ -159,6 +161,8 @@
     private int mTitleMarginBottom;
 
     private final RtlSpacingHelper mContentInsets = new RtlSpacingHelper();
+    private int mContentInsetStartWithNavigation;
+    private int mContentInsetEndWithActions;
 
     private int mGravity = Gravity.START | Gravity.CENTER_VERTICAL;
 
@@ -272,6 +276,11 @@
             mContentInsets.setRelative(contentInsetStart, contentInsetEnd);
         }
 
+        mContentInsetStartWithNavigation = a.getDimensionPixelOffset(
+                R.styleable.Toolbar_contentInsetStartWithNavigation, RtlSpacingHelper.UNDEFINED);
+        mContentInsetEndWithActions = a.getDimensionPixelOffset(
+                R.styleable.Toolbar_contentInsetEndWithActions, RtlSpacingHelper.UNDEFINED);
+
         mCollapseIcon = a.getDrawable(R.styleable.Toolbar_collapseIcon);
         mCollapseDescription = a.getText(R.styleable.Toolbar_collapseContentDescription);
 
@@ -1055,7 +1064,7 @@
     }
 
     /**
-     * Set the content insets for this toolbar relative to layout direction.
+     * Sets the content insets for this toolbar relative to layout direction.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1069,13 +1078,15 @@
      * @see #getContentInsetEnd()
      * @see #getContentInsetLeft()
      * @see #getContentInsetRight()
+     * @attr ref android.R.styleable#Toolbar_contentInsetEnd
+     * @attr ref android.R.styleable#Toolbar_contentInsetStart
      */
     public void setContentInsetsRelative(int contentInsetStart, int contentInsetEnd) {
         mContentInsets.setRelative(contentInsetStart, contentInsetEnd);
     }
 
     /**
-     * Get the starting content inset for this toolbar.
+     * Gets the starting content inset for this toolbar.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1088,13 +1099,14 @@
      * @see #getContentInsetEnd()
      * @see #getContentInsetLeft()
      * @see #getContentInsetRight()
+     * @attr ref android.R.styleable#Toolbar_contentInsetStart
      */
     public int getContentInsetStart() {
         return mContentInsets.getStart();
     }
 
     /**
-     * Get the ending content inset for this toolbar.
+     * Gets the ending content inset for this toolbar.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1107,13 +1119,14 @@
      * @see #getContentInsetStart()
      * @see #getContentInsetLeft()
      * @see #getContentInsetRight()
+     * @attr ref android.R.styleable#Toolbar_contentInsetEnd
      */
     public int getContentInsetEnd() {
         return mContentInsets.getEnd();
     }
 
     /**
-     * Set the content insets for this toolbar.
+     * Sets the content insets for this toolbar.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1127,13 +1140,15 @@
      * @see #getContentInsetEnd()
      * @see #getContentInsetLeft()
      * @see #getContentInsetRight()
+     * @attr ref android.R.styleable#Toolbar_contentInsetLeft
+     * @attr ref android.R.styleable#Toolbar_contentInsetRight
      */
     public void setContentInsetsAbsolute(int contentInsetLeft, int contentInsetRight) {
         mContentInsets.setAbsolute(contentInsetLeft, contentInsetRight);
     }
 
     /**
-     * Get the left content inset for this toolbar.
+     * Gets the left content inset for this toolbar.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1146,13 +1161,14 @@
      * @see #getContentInsetStart()
      * @see #getContentInsetEnd()
      * @see #getContentInsetRight()
+     * @attr ref android.R.styleable#Toolbar_contentInsetLeft
      */
     public int getContentInsetLeft() {
         return mContentInsets.getLeft();
     }
 
     /**
-     * Get the right content inset for this toolbar.
+     * Gets the right content inset for this toolbar.
      *
      * <p>The content inset affects the valid area for Toolbar content other than
      * the navigation button and menu. Insets define the minimum margin for these components
@@ -1165,11 +1181,160 @@
      * @see #getContentInsetStart()
      * @see #getContentInsetEnd()
      * @see #getContentInsetLeft()
+     * @attr ref android.R.styleable#Toolbar_contentInsetRight
      */
     public int getContentInsetRight() {
         return mContentInsets.getRight();
     }
 
+    /**
+     * Gets the start content inset to use when a navigation button is present.
+     *
+     * <p>Different content insets are often called for when additional buttons are present
+     * in the toolbar, as well as at different toolbar sizes. The larger value of
+     * {@link #getContentInsetStart()} and this value will be used during layout.</p>
+     *
+     * @return the start content inset used when a navigation icon has been set in pixels
+     *
+     * @see #setContentInsetStartWithNavigation(int)
+     * @attr ref android.R.styleable#Toolbar_contentInsetStartWithNavigation
+     */
+    public int getContentInsetStartWithNavigation() {
+        return mContentInsetStartWithNavigation != RtlSpacingHelper.UNDEFINED
+                ? mContentInsetStartWithNavigation
+                : getContentInsetStart();
+    }
+
+    /**
+     * Sets the start content inset to use when a navigation button is present.
+     *
+     * <p>Different content insets are often called for when additional buttons are present
+     * in the toolbar, as well as at different toolbar sizes. The larger value of
+     * {@link #getContentInsetStart()} and this value will be used during layout.</p>
+     *
+     * @param insetStartWithNavigation the inset to use when a navigation icon has been set
+     *                                 in pixels
+     *
+     * @see #getContentInsetStartWithNavigation()
+     * @attr ref android.R.styleable#Toolbar_contentInsetStartWithNavigation
+     */
+    public void setContentInsetStartWithNavigation(int insetStartWithNavigation) {
+        if (insetStartWithNavigation < 0) {
+            insetStartWithNavigation = RtlSpacingHelper.UNDEFINED;
+        }
+        if (insetStartWithNavigation != mContentInsetStartWithNavigation) {
+            mContentInsetStartWithNavigation = insetStartWithNavigation;
+            if (getNavigationIcon() != null) {
+                requestLayout();
+            }
+        }
+    }
+
+    /**
+     * Gets the end content inset to use when action buttons are present.
+     *
+     * <p>Different content insets are often called for when additional buttons are present
+     * in the toolbar, as well as at different toolbar sizes. The larger value of
+     * {@link #getContentInsetEnd()} and this value will be used during layout.</p>
+     *
+     * @return the end content inset used when a menu has been set in pixels
+     *
+     * @see #setContentInsetEndWithActions(int)
+     * @attr ref android.R.styleable#Toolbar_contentInsetEndWithActions
+     */
+    public int getContentInsetEndWithActions() {
+        return mContentInsetEndWithActions != RtlSpacingHelper.UNDEFINED
+                ? mContentInsetEndWithActions
+                : getContentInsetEnd();
+    }
+
+    /**
+     * Sets the start content inset to use when action buttons are present.
+     *
+     * <p>Different content insets are often called for when additional buttons are present
+     * in the toolbar, as well as at different toolbar sizes. The larger value of
+     * {@link #getContentInsetEnd()} and this value will be used during layout.</p>
+     *
+     * @param insetEndWithActions the inset to use when a menu has been set in pixels
+     *
+     * @see #setContentInsetEndWithActions(int)
+     * @attr ref android.R.styleable#Toolbar_contentInsetEndWithActions
+     */
+    public void setContentInsetEndWithActions(int insetEndWithActions) {
+        if (insetEndWithActions < 0) {
+            insetEndWithActions = RtlSpacingHelper.UNDEFINED;
+        }
+        if (insetEndWithActions != mContentInsetEndWithActions) {
+            mContentInsetEndWithActions = insetEndWithActions;
+            if (getNavigationIcon() != null) {
+                requestLayout();
+            }
+        }
+    }
+
+    /**
+     * Gets the content inset that will be used on the starting side of the bar in the current
+     * toolbar configuration.
+     *
+     * @return the current content inset start in pixels
+     *
+     * @see #getContentInsetStartWithNavigation()
+     */
+    public int getCurrentContentInsetStart() {
+        return getNavigationIcon() != null
+                ? Math.max(getContentInsetStart(), Math.max(mContentInsetStartWithNavigation, 0))
+                : getContentInsetStart();
+    }
+
+    /**
+     * Gets the content inset that will be used on the ending side of the bar in the current
+     * toolbar configuration.
+     *
+     * @return the current content inset end in pixels
+     *
+     * @see #getContentInsetEndWithActions()
+     */
+    public int getCurrentContentInsetEnd() {
+        boolean hasActions = false;
+        if (mMenuView != null) {
+            final MenuBuilder mb = mMenuView.peekMenu();
+            hasActions = mb != null && mb.hasVisibleItems();
+        }
+        return hasActions
+                ? Math.max(getContentInsetEnd(), Math.max(mContentInsetEndWithActions, 0))
+                : getContentInsetEnd();
+    }
+
+    /**
+     * Gets the content inset that will be used on the left side of the bar in the current
+     * toolbar configuration.
+     *
+     * @return the current content inset left in pixels
+     *
+     * @see #getContentInsetStartWithNavigation()
+     * @see #getContentInsetEndWithActions()
+     */
+    public int getCurrentContentInsetLeft() {
+        return isLayoutRtl()
+                ? getCurrentContentInsetEnd()
+                : getCurrentContentInsetStart();
+    }
+
+    /**
+     * Gets the content inset that will be used on the right side of the bar in the current
+     * toolbar configuration.
+     *
+     * @return the current content inset right in pixels
+     *
+     * @see #getContentInsetStartWithNavigation()
+     * @see #getContentInsetEndWithActions()
+     */
+    public int getCurrentContentInsetRight() {
+        return isLayoutRtl()
+                ? getCurrentContentInsetStart()
+                : getCurrentContentInsetEnd();
+    }
+
     private void ensureNavButtonView() {
         if (mNavButtonView == null) {
             mNavButtonView = new ImageButton(getContext(), null, 0, mNavButtonStyle);
@@ -1406,7 +1571,7 @@
             childState = combineMeasuredStates(childState, mCollapseButtonView.getMeasuredState());
         }
 
-        final int contentInsetStart = getContentInsetStart();
+        final int contentInsetStart = getCurrentContentInsetStart();
         width += Math.max(contentInsetStart, navWidth);
         collapsingMargins[marginStartIndex] = Math.max(0, contentInsetStart - navWidth);
 
@@ -1420,7 +1585,7 @@
             childState = combineMeasuredStates(childState, mMenuView.getMeasuredState());
         }
 
-        final int contentInsetEnd = getContentInsetEnd();
+        final int contentInsetEnd = getCurrentContentInsetEnd();
         width += Math.max(contentInsetEnd, menuWidth);
         collapsingMargins[marginEndIndex] = Math.max(0, contentInsetEnd - menuWidth);
 
@@ -1543,10 +1708,12 @@
             }
         }
 
-        collapsingMargins[0] = Math.max(0, getContentInsetLeft() - left);
-        collapsingMargins[1] = Math.max(0, getContentInsetRight() - (width - paddingRight - right));
-        left = Math.max(left, getContentInsetLeft());
-        right = Math.min(right, width - paddingRight - getContentInsetRight());
+        final int contentInsetLeft = getCurrentContentInsetLeft();
+        final int contentInsetRight = getCurrentContentInsetRight();
+        collapsingMargins[0] = Math.max(0, contentInsetLeft - left);
+        collapsingMargins[1] = Math.max(0, contentInsetRight - (width - paddingRight - right));
+        left = Math.max(left, contentInsetLeft);
+        right = Math.min(right, width - paddingRight - contentInsetRight);
 
         if (shouldLayout(mExpandedActionView)) {
             if (isRtl) {
diff --git a/core/java/com/android/internal/app/LocaleHelper.java b/core/java/com/android/internal/app/LocaleHelper.java
index d8d6e56..36db5d7 100644
--- a/core/java/com/android/internal/app/LocaleHelper.java
+++ b/core/java/com/android/internal/app/LocaleHelper.java
@@ -181,6 +181,7 @@
     public static final class LocaleInfoComparator implements Comparator<LocaleStore.LocaleInfo> {
         private final Collator mCollator;
         private final boolean mCountryMode;
+        private static final String PREFIX_ARABIC = "\u0627\u0644"; // ALEF-LAM, ال
 
         /**
          * Constructor.
@@ -192,6 +193,20 @@
             mCountryMode = countryMode;
         }
 
+        /*
+         * The Arabic collation should ignore Alef-Lam at the beginning (b/26277596)
+         *
+         * We look at the label's locale, not the current system locale.
+         * This is because the name of the Arabic language itself is in Arabic,
+         * and starts with Alef-Lam, no matter what the system locale is.
+         */
+        private String removePrefixForCompare(Locale locale, String str) {
+            if ("ar".equals(locale.getLanguage()) && str.startsWith(PREFIX_ARABIC)) {
+                return str.substring(PREFIX_ARABIC.length());
+            }
+            return str;
+        }
+
         /**
          * Compares its two arguments for order.
          *
@@ -206,7 +221,9 @@
             // and "all others" (== 0)
             if (mCountryMode || (lhs.isSuggested() == rhs.isSuggested())) {
                 // They are in the same "bucket" (suggested / others), so we compare the text
-                return mCollator.compare(lhs.getLabel(mCountryMode), rhs.getLabel(mCountryMode));
+                return mCollator.compare(
+                        removePrefixForCompare(lhs.getLocale(), lhs.getLabel(mCountryMode)),
+                        removePrefixForCompare(rhs.getLocale(), rhs.getLabel(mCountryMode)));
             } else {
                 // One locale is suggested and one is not, so we put them in different "buckets"
                 return lhs.isSuggested() ? -1 : 1;
diff --git a/core/java/com/android/internal/policy/DecorView.java b/core/java/com/android/internal/policy/DecorView.java
index 4b695b9..ea0fbda 100644
--- a/core/java/com/android/internal/policy/DecorView.java
+++ b/core/java/com/android/internal/policy/DecorView.java
@@ -209,6 +209,7 @@
     private Drawable mResizingBackgroundDrawable;
     private Drawable mCaptionBackgroundDrawable;
     private Drawable mUserCaptionBackgroundDrawable;
+    private Drawable mOriginalBackgroundDrawable;
 
     private float mAvailableWidth;
 
@@ -888,6 +889,11 @@
                 mBackgroundPadding.setEmpty();
             }
             drawableChanged();
+
+            // Make sure we don't reset to the old drawable when finishing resizing.
+            if (mResizeMode != RESIZE_MODE_INVALID) {
+                mOriginalBackgroundDrawable = null;
+            }
         }
     }
 
@@ -1950,6 +1956,9 @@
             updateElevation();
 
             updateColorViews(null /* insets */, false);
+
+            mOriginalBackgroundDrawable = getBackground();
+            setBackgroundDrawable(null);
         }
         mResizeMode = resizeMode;
         getViewRootImpl().requestInvalidateRootRenderNode();
@@ -1961,6 +1970,10 @@
         updateColorViews(null /* insets */, false);
         mResizeMode = RESIZE_MODE_INVALID;
         getViewRootImpl().requestInvalidateRootRenderNode();
+        if (mOriginalBackgroundDrawable != null) {
+            setBackgroundDrawable(mOriginalBackgroundDrawable);
+            mOriginalBackgroundDrawable = null;
+        }
     }
 
     @Override
diff --git a/core/java/com/android/internal/policy/PhoneWindow.java b/core/java/com/android/internal/policy/PhoneWindow.java
index 794a6d6..d80b63a 100644
--- a/core/java/com/android/internal/policy/PhoneWindow.java
+++ b/core/java/com/android/internal/policy/PhoneWindow.java
@@ -680,7 +680,7 @@
     }
 
     @Override
-    public void onMultiWindowChanged() {
+    public void onMultiWindowModeChanged() {
         if (mDecor != null) {
             mDecor.onConfigurationChanged(getContext().getResources().getConfiguration());
         }
diff --git a/core/java/com/android/internal/view/IInputConnectionWrapper.java b/core/java/com/android/internal/view/IInputConnectionWrapper.java
index 6c1ebb4..3a4afad 100644
--- a/core/java/com/android/internal/view/IInputConnectionWrapper.java
+++ b/core/java/com/android/internal/view/IInputConnectionWrapper.java
@@ -27,13 +27,12 @@
 import android.os.RemoteException;
 import android.util.Log;
 import android.view.KeyEvent;
-import android.view.inputmethod.BaseInputConnection;
 import android.view.inputmethod.CompletionInfo;
 import android.view.inputmethod.CorrectionInfo;
 import android.view.inputmethod.ExtractedTextRequest;
 import android.view.inputmethod.InputConnection;
-
-import java.lang.ref.WeakReference;
+import android.view.inputmethod.InputConnectionInspector;
+import android.view.inputmethod.InputConnectionInspector.MissingMethodFlags;
 
 public abstract class IInputConnectionWrapper extends IInputContext.Stub {
     static final String TAG = "IInputConnectionWrapper";
@@ -61,7 +60,7 @@
     private static final int DO_PERFORM_PRIVATE_COMMAND = 120;
     private static final int DO_CLEAR_META_KEY_STATES = 130;
     private static final int DO_REQUEST_UPDATE_CURSOR_ANCHOR_INFO = 140;
-    private static final int DO_REPORT_FINISH = 150;
+    private static final int DO_CLOSE_CONNECTION = 150;
 
     @GuardedBy("mLock")
     @Nullable
@@ -222,8 +221,8 @@
                 seq, callback));
     }
 
-    public void reportFinish() {
-        dispatchMessage(obtainMessage(DO_REPORT_FINISH));
+    public void closeConnection() {
+        dispatchMessage(obtainMessage(DO_CLOSE_CONNECTION));
     }
 
     void dispatchMessage(Message msg) {
@@ -501,10 +500,10 @@
                 }
                 return;
             }
-            case DO_REPORT_FINISH: {
+            case DO_CLOSE_CONNECTION: {
                 // Note that we do not need to worry about race condition here, because 1) mFinished
                 // is updated only inside this block, and 2) the code here is running on a Handler
-                // hence we assume multiple DO_REPORT_FINISH messages will not be handled at the
+                // hence we assume multiple DO_CLOSE_CONNECTION messages will not be handled at the
                 // same time.
                 if (isFinished()) {
                     return;
@@ -518,11 +517,10 @@
                     if (ic == null) {
                         return;
                     }
-                    ic.finishComposingText();
-                    // TODO: Make reportFinish() public method of InputConnection to remove this
-                    // check.
-                    if (ic instanceof BaseInputConnection) {
-                        ((BaseInputConnection) ic).reportFinish();
+                    @MissingMethodFlags
+                    final int missingMethods = InputConnectionInspector.getMissingMethodFlags(ic);
+                    if ((missingMethods & MissingMethodFlags.CLOSE_CONNECTION) == 0) {
+                        ic.closeConnection();
                     }
                 } finally {
                     synchronized (mLock) {
diff --git a/core/java/com/android/internal/view/InputConnectionWrapper.java b/core/java/com/android/internal/view/InputConnectionWrapper.java
index 85b8606..f9884d8 100644
--- a/core/java/com/android/internal/view/InputConnectionWrapper.java
+++ b/core/java/com/android/internal/view/InputConnectionWrapper.java
@@ -487,6 +487,10 @@
         return null;
     }
 
+    public void closeConnection() {
+        // Nothing should happen when called from input method.
+    }
+
     private boolean isMethodMissing(@MissingMethodFlags final int methodFlag) {
         return (mMissingMethods & methodFlag) == methodFlag;
     }
diff --git a/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java b/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
index 526e2ae..9e2cbdb 100644
--- a/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
+++ b/core/java/com/android/internal/view/animation/FallbackLUTInterpolator.java
@@ -45,7 +45,8 @@
     private static float[] createLUT(TimeInterpolator interpolator, long duration) {
         long frameIntervalNanos = Choreographer.getInstance().getFrameIntervalNanos();
         int animIntervalMs = (int) (frameIntervalNanos / TimeUtils.NANOS_PER_MS);
-        int numAnimFrames = (int) Math.ceil(((double) duration) / animIntervalMs);
+        // We need 2 frame values as the minimal.
+        int numAnimFrames = Math.max(2, (int) Math.ceil(((double) duration) / animIntervalMs));
         float values[] = new float[numAnimFrames];
         float lastFrame = numAnimFrames - 1;
         for (int i = 0; i < numAnimFrames; i++) {
diff --git a/core/java/com/android/internal/view/menu/MenuBuilder.java b/core/java/com/android/internal/view/menu/MenuBuilder.java
index 31b2f96..df57639 100644
--- a/core/java/com/android/internal/view/menu/MenuBuilder.java
+++ b/core/java/com/android/internal/view/menu/MenuBuilder.java
@@ -65,7 +65,6 @@
 
     private final Context mContext;
     private final Resources mResources;
-    private final boolean mShowCascadingMenus;
 
     /**
      * Whether the shortcuts should be qwerty-accessible. Use isQwertyMode()
@@ -188,9 +187,6 @@
     public MenuBuilder(Context context) {
         mContext = context;
         mResources = context.getResources();
-        mShowCascadingMenus = context.getResources().getBoolean(
-                com.android.internal.R.bool.config_enableCascadingSubmenus);
-        
         mItems = new ArrayList<MenuItemImpl>();
         
         mVisibleItems = new ArrayList<MenuItemImpl>();
@@ -915,10 +911,6 @@
                 close(true /* closeAllMenus */);
             }
         } else if (itemImpl.hasSubMenu() || providerHasSubMenu) {
-            if (!mShowCascadingMenus) {
-                close(false /* closeAllMenus */);
-            }
-
             if (!itemImpl.hasSubMenu()) {
                 itemImpl.setSubMenu(new SubMenuBuilder(getContext(), this, itemImpl));
             }
diff --git a/core/java/com/android/internal/view/menu/StandardMenuPopup.java b/core/java/com/android/internal/view/menu/StandardMenuPopup.java
index 2cb224e..8ced36f 100644
--- a/core/java/com/android/internal/view/menu/StandardMenuPopup.java
+++ b/core/java/com/android/internal/view/menu/StandardMenuPopup.java
@@ -240,7 +240,10 @@
             mTreeObserver = null;
         }
         mShownAnchorView.removeOnAttachStateChangeListener(mAttachStateChangeListener);
-        mOnDismissListener.onDismiss();
+
+        if (mOnDismissListener != null) {
+            mOnDismissListener.onDismiss();
+        }
     }
 
     @Override
@@ -265,6 +268,13 @@
             subPopup.setPresenterCallback(mPresenterCallback);
             subPopup.setForceShowIcon(mAdapter.getForceShowIcon());
 
+            // Pass responsibility for handling onDismiss to the submenu.
+            subPopup.setOnDismissListener(mOnDismissListener);
+            mOnDismissListener = null;
+
+            // Close this menu popup to make room for the submenu popup.
+            dismiss();
+
             // Show the new sub-menu popup at the same location as this popup.
             if (subPopup.tryShow(mXOffset, mYOffset)) {
                 if (mPresenterCallback != null) {
diff --git a/core/java/com/android/internal/widget/DecorCaptionView.java b/core/java/com/android/internal/widget/DecorCaptionView.java
index 409a17f..e59d7ba 100644
--- a/core/java/com/android/internal/widget/DecorCaptionView.java
+++ b/core/java/com/android/internal/widget/DecorCaptionView.java
@@ -136,7 +136,7 @@
     public void setPhoneWindow(PhoneWindow owner, boolean show) {
         mOwner = owner;
         mShow = show;
-        mOverlayWithAppContent = owner.getOverlayDecorCaption();
+        mOverlayWithAppContent = owner.isOverlayWithDecorCaptionEnabled();
         if (mOverlayWithAppContent) {
             // The caption is covering the content, so we make its background transparent to make
             // the content visible.
diff --git a/core/java/com/android/internal/widget/EditableInputConnection.java b/core/java/com/android/internal/widget/EditableInputConnection.java
index a96b5a0..7f7528d 100644
--- a/core/java/com/android/internal/widget/EditableInputConnection.java
+++ b/core/java/com/android/internal/widget/EditableInputConnection.java
@@ -83,13 +83,9 @@
         return false;
     }
 
-    /**
-     * @hide
-     */
     @Override
-    public void reportFinish() {
-        super.reportFinish();
-
+    public void closeConnection() {
+        super.closeConnection();
         synchronized(this) {
             while (mBatchEditNesting > 0) {
                 endBatchEdit();
diff --git a/core/jni/android_hardware_SensorManager.cpp b/core/jni/android_hardware_SensorManager.cpp
index e39bb1c..90f407f 100644
--- a/core/jni/android_hardware_SensorManager.cpp
+++ b/core/jni/android_hardware_SensorManager.cpp
@@ -36,15 +36,17 @@
 
 #include "core_jni_helpers.h"
 
-static struct {
+namespace {
+
+using namespace android;
+
+struct {
     jclass clazz;
     jmethodID dispatchSensorEvent;
     jmethodID dispatchFlushCompleteEvent;
     jmethodID dispatchAdditionalInfoEvent;
 } gBaseEventQueueClassInfo;
 
-namespace android {
-
 struct SensorOffsets
 {
     jclass      clazz;
@@ -72,9 +74,9 @@
 } gListOffsets;
 
 /*
- * The method below are not thread-safe and not intended to be
+ * nativeClassInit is not inteneded to be thread-safe. It should be called before other native...
+ * functions (except nativeCreate).
  */
-
 static void
 nativeClassInit (JNIEnv *_env, jclass _this)
 {
@@ -494,9 +496,7 @@
             (void*)nativeInjectSensorData },
 };
 
-}; // namespace android
-
-using namespace android;
+} //unnamed namespace
 
 int register_android_hardware_SensorManager(JNIEnv *env)
 {
diff --git a/core/res/res/values-sw600dp/dimens_material.xml b/core/res/res/values-sw600dp/dimens_material.xml
index 3bbb352..1ec5c0f 100644
--- a/core/res/res/values-sw600dp/dimens_material.xml
+++ b/core/res/res/values-sw600dp/dimens_material.xml
@@ -23,6 +23,8 @@
     <dimen name="action_bar_default_height_material">64dp</dimen>
     <!-- Default content inset of an action bar. -->
     <dimen name="action_bar_content_inset_material">24dp</dimen>
+    <!-- Default content inset of an action bar with navigation present. -->
+    <dimen name="action_bar_content_inset_with_nav">80dp</dimen>
 
     <!-- Default start padding of an action bar. -->
     <dimen name="action_bar_default_padding_start_material">8dp</dimen>
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 00eb81a..4429001 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -4384,8 +4384,7 @@
         <attr name="autoLink" />
         <!-- If set to false, keeps the movement method from being set
              to the link movement method even if autoLink causes links
-             to be found or the input text contains a
-             {@link android.text.style.ClickableSpan ClickableSpan}. -->
+             to be found. -->
         <attr name="linksClickable" format="boolean" />
         <!-- If set, specifies that this TextView has a numeric input method.
              The default is false.
@@ -7644,6 +7643,12 @@
         <!-- Minimum inset for content views within a bar. Navigation buttons and
              menu views are excepted. Only valid for some themes and configurations. -->
         <attr name="contentInsetRight" format="dimension" />
+        <!-- Minimum inset for content views within a bar when a navigation button
+             is present, such as the Up button. Only valid for some themes and configurations. -->
+        <attr name="contentInsetStartWithNavigation" format="dimension" />
+        <!-- Minimum inset for content views within a bar when actions from a menu
+             are present. Only valid for some themes and configurations. -->
+        <attr name="contentInsetEndWithActions" format="dimension" />
         <!-- Elevation for the action bar itself -->
         <attr name="elevation" />
         <!-- Reference to a theme that should be used to inflate popups
@@ -8011,6 +8016,8 @@
         <attr name="contentInsetEnd" />
         <attr name="contentInsetLeft" />
         <attr name="contentInsetRight" />
+        <attr name="contentInsetStartWithNavigation" />
+        <attr name="contentInsetEndWithActions" />
         <attr name="maxButtonHeight" format="dimension" />
         <attr name="navigationButtonStyle" format="reference" />
         <attr name="buttonGravity">
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 6ecaa1f..892b3d5 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2497,4 +2497,8 @@
     <!-- True if the device supports at least one form of multi-window.
          E.g. freeform, split-screen, picture-in-picture. -->
     <bool name="config_supportsMultiWindow">true</bool>
+
+    <!-- True if the device requires AppWidgetService even if it does not have
+         the PackageManager.FEATURE_APP_WIDGETS feature -->
+    <bool name="config_enableAppWidgetService">false</bool>
 </resources>
diff --git a/core/res/res/values/dimens_material.xml b/core/res/res/values/dimens_material.xml
index 2fe4f66..ad2b335d 100644
--- a/core/res/res/values/dimens_material.xml
+++ b/core/res/res/values/dimens_material.xml
@@ -41,6 +41,8 @@
     <dimen name="action_bar_default_padding_end_material">0dp</dimen>
     <!-- Default content inset of an action bar. -->
     <dimen name="action_bar_content_inset_material">16dp</dimen>
+    <!-- Default content inset of an action bar when a navigation button is present. -->
+    <dimen name="action_bar_content_inset_with_nav">72dp</dimen>
     <!-- Vertical padding around action bar icons. -->
     <dimen name="action_bar_icon_vertical_padding_material">16dp</dimen>
     <!-- Top margin for action bar subtitles -->
diff --git a/core/res/res/values/public.xml b/core/res/res/values/public.xml
index ac29f92..0839187 100644
--- a/core/res/res/values/public.xml
+++ b/core/res/res/values/public.xml
@@ -2711,6 +2711,8 @@
     <public type="attr" name="popupExitTransition" />
     <public type="attr" name="minimalHeight" />
     <public type="attr" name="forceHasOverlappingRendering" />
+    <public type="attr" name="contentInsetStartWithNavigation" />
+    <public type="attr" name="contentInsetEndWithActions" />
 
     <public type="style" name="Theme.Material.Light.DialogWhenLarge.DarkActionBar" />
     <public type="style" name="Widget.Material.SeekBar.Discrete" />
diff --git a/core/res/res/values/strings.xml b/core/res/res/values/strings.xml
index 6041f637c..b878b00 100644
--- a/core/res/res/values/strings.xml
+++ b/core/res/res/values/strings.xml
@@ -2953,10 +2953,11 @@
     <!-- Title of the physical keyboard category in the input method selector [CHAR LIMIT=30] -->
     <string name="hardware">Show virtual keyboard</string>
 
-    <!-- Title of the notification to prompt the user to select a keyboard layout. -->
-    <string name="select_keyboard_layout_notification_title">Select keyboard layout</string>
-    <!-- Message of the notification to prompt the user to select a keyboard layout. -->
-    <string name="select_keyboard_layout_notification_message">Touch to select a keyboard layout.</string>
+    <!-- Title of the notification to prompt the user to configure physical keyboard settings. -->
+    <string name="select_keyboard_layout_notification_title">Configure physical keyboard</string>
+    <!-- Message of the notification to prompt the user to configure physical keyboard settings
+         where the user can associate language with physical keyboard layout. -->
+    <string name="select_keyboard_layout_notification_message">Tap to select language and layout</string>
 
     <string name="fast_scroll_alphabet">\u0020ABCDEFGHIJKLMNOPQRSTUVWXYZ</string>
     <string name="fast_scroll_numeric_alphabet">\u00200123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ</string>
diff --git a/core/res/res/values/styles.xml b/core/res/res/values/styles.xml
index 86b9f1d..790dcfa 100644
--- a/core/res/res/values/styles.xml
+++ b/core/res/res/values/styles.xml
@@ -1234,6 +1234,7 @@
         <item name="collapseIcon">?attr/homeAsUpIndicator</item>
         <item name="collapseContentDescription">@string/toolbar_collapse_description</item>
         <item name="contentInsetStart">16dp</item>
+        <item name="contentInsetStartWithNavigation">@dimen/action_bar_content_inset_with_nav</item>
         <item name="touchscreenBlocksFocus">true</item>
     </style>
 
diff --git a/core/res/res/values/styles_material.xml b/core/res/res/values/styles_material.xml
index e636bc0..2420c1a 100644
--- a/core/res/res/values/styles_material.xml
+++ b/core/res/res/values/styles_material.xml
@@ -311,7 +311,7 @@
     <style name="TextAppearance.Material.Widget.PopupMenu.Header">
         <item name="fontFamily">@string/font_family_title_material</item>
         <item name="textSize">@dimen/text_size_menu_header_material</item>
-        <item name="textColor">?attr/textColorSecondary</item>
+        <item name="textColor">?attr/colorAccent</item>
     </style>
 
     <style name="TextAppearance.Material.Widget.DropDownHint" parent="TextAppearance.Material.Menu" />
@@ -944,6 +944,7 @@
         <item name="homeLayout">@layout/action_bar_home_material</item>
         <item name="gravity">center_vertical</item>
         <item name="contentInsetStart">@dimen/action_bar_content_inset_material</item>
+        <item name="contentInsetStartWithNavigation">@dimen/action_bar_content_inset_with_nav</item>
         <item name="contentInsetEnd">@dimen/action_bar_content_inset_material</item>
         <item name="elevation">@dimen/action_bar_elevation_material</item>
         <item name="popupTheme">?attr/actionBarPopupTheme</item>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index 6526571..694e934 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -307,6 +307,7 @@
   <java-symbol type="bool" name="config_supportsMultiWindow" />
   <java-symbol type="bool" name="config_guestUserEphemeral" />
   <java-symbol type="bool" name="config_localDisplaysMirrorContent" />
+  <java-symbol type="bool" name="config_enableAppWidgetService" />
   <java-symbol type="string" name="config_defaultPictureInPictureBounds" />
   <java-symbol type="integer" name="config_wifi_framework_5GHz_preference_boost_threshold" />
   <java-symbol type="integer" name="config_wifi_framework_5GHz_preference_boost_factor" />
diff --git a/core/tests/coretests/AndroidManifest.xml b/core/tests/coretests/AndroidManifest.xml
index b780778..b7926cf 100644
--- a/core/tests/coretests/AndroidManifest.xml
+++ b/core/tests/coretests/AndroidManifest.xml
@@ -1093,7 +1093,12 @@
             </intent-filter>
         </activity>
 
-
+        <activity android:name="android.view.ViewCaptureTestActivity" android:label="ViewCaptureTestActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST" />
+            </intent-filter>
+        </activity>
 
         <!-- Activity-level metadata -->
         <meta-data android:name="com.android.frameworks.coretests.isApp" android:value="true" />
@@ -1251,6 +1256,15 @@
         <service android:name="android.os.BinderThreadPriorityService"
                 android:process=":BinderThreadPriorityService" />
 
+        <!-- Used by ApplyOverrideConfigurationTest -->
+        <activity android:name="android.app.activity.ApplyOverrideConfigurationActivity"
+                  android:configChanges="orientation|screenSize">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.FRAMEWORK_INSTRUMENTATION_TEST" />
+            </intent-filter>
+        </activity>
+
         <!-- Application components used for search manager tests -->
 
         <activity android:name="android.app.activity.SearchableActivity"
diff --git a/core/tests/coretests/res/drawable-nodpi/view_capture_test_no_children_golden.png b/core/tests/coretests/res/drawable-nodpi/view_capture_test_no_children_golden.png
new file mode 100644
index 0000000..52092c4
--- /dev/null
+++ b/core/tests/coretests/res/drawable-nodpi/view_capture_test_no_children_golden.png
Binary files differ
diff --git a/core/tests/coretests/res/drawable-nodpi/view_capture_test_with_children_golden.png b/core/tests/coretests/res/drawable-nodpi/view_capture_test_with_children_golden.png
new file mode 100644
index 0000000..3bcbd9a
--- /dev/null
+++ b/core/tests/coretests/res/drawable-nodpi/view_capture_test_with_children_golden.png
Binary files differ
diff --git a/core/tests/coretests/res/layout/view_capture_snapshot.xml b/core/tests/coretests/res/layout/view_capture_snapshot.xml
new file mode 100644
index 0000000..0b589a4
--- /dev/null
+++ b/core/tests/coretests/res/layout/view_capture_snapshot.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+**
+** Copyright 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.
+*/
+-->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout android:id="@+id/capture"
+        android:background="#00f"
+        android:orientation="vertical"
+        android:layout_width="100px"
+        android:layout_height="100px">
+
+        <View android:id="@+id/child1"
+            android:background="#f00"
+            android:layout_width="match_parent"
+            android:layout_height="25px"/>
+
+        <View android:id="@+id/child2"
+            android:background="#fff"
+            android:layout_width="match_parent"
+            android:layout_height="25px"
+            android:visibility="invisible"/>
+
+        <View android:id="@+id/child3"
+            android:background="#ff0"
+            android:layout_width="match_parent"
+            android:layout_height="25px"
+            android:visibility="gone"/>
+
+        <View android:id="@+id/child4"
+            android:background="#0ff"
+            android:layout_width="match_parent"
+            android:layout_height="25px" />
+    </LinearLayout>
+</FrameLayout>
diff --git a/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationActivity.java b/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationActivity.java
new file mode 100644
index 0000000..3df522d
--- /dev/null
+++ b/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationActivity.java
@@ -0,0 +1,32 @@
+/*
+ * 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 android.app.activity;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.res.Configuration;
+
+public class ApplyOverrideConfigurationActivity extends Activity {
+
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(newBase);
+
+        Configuration overrideConfig = new Configuration();
+        overrideConfig.smallestScreenWidthDp = ApplyOverrideConfigurationTest.OVERRIDE_WIDTH;
+        applyOverrideConfiguration(overrideConfig);
+    }
+}
diff --git a/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationTest.java b/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationTest.java
new file mode 100644
index 0000000..15ed77e
--- /dev/null
+++ b/core/tests/coretests/src/android/app/activity/ApplyOverrideConfigurationTest.java
@@ -0,0 +1,66 @@
+/*
+ * 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 android.app.activity;
+
+import android.app.UiAutomation;
+import android.content.res.Configuration;
+import android.support.test.InstrumentationRegistry;
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+import android.test.ActivityInstrumentationTestCase2;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@SmallTest
+@RunWith(AndroidJUnit4.class)
+public class ApplyOverrideConfigurationTest extends
+        ActivityInstrumentationTestCase2<ApplyOverrideConfigurationActivity> {
+
+    public static final int OVERRIDE_WIDTH = 9999;
+
+    public ApplyOverrideConfigurationTest() {
+        super(ApplyOverrideConfigurationActivity.class);
+    }
+
+    @Before
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        injectInstrumentation(InstrumentationRegistry.getInstrumentation());
+        getInstrumentation().getUiAutomation().setRotation(UiAutomation.ROTATION_FREEZE_0);
+    }
+
+    @Test
+    public void testConfigurationIsOverriden() throws Exception {
+        Configuration config = getActivity().getResources().getConfiguration();
+        assertEquals(OVERRIDE_WIDTH, config.smallestScreenWidthDp);
+
+        getInstrumentation().getUiAutomation().setRotation(UiAutomation.ROTATION_FREEZE_90);
+
+        config = getActivity().getResources().getConfiguration();
+        assertEquals(OVERRIDE_WIDTH, config.smallestScreenWidthDp);
+    }
+
+    @After
+    @Override
+    public void tearDown() throws Exception {
+        getInstrumentation().getUiAutomation().setRotation(UiAutomation.ROTATION_UNFREEZE);
+        super.tearDown();
+    }
+}
diff --git a/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java b/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
index 3cadbf6..d4bb0f3 100644
--- a/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
+++ b/core/tests/coretests/src/android/content/res/ResourcesManagerTest.java
@@ -18,7 +18,7 @@
 import android.annotation.NonNull;
 import android.app.ResourcesManager;
 import android.os.Binder;
-import android.test.suitebuilder.annotation.SmallTest;
+import android.support.test.filters.SmallTest;
 import android.util.DisplayMetrics;
 import android.util.LocaleList;
 import android.util.TypedValue;
@@ -58,7 +58,7 @@
             }
 
             @Override
-            protected DisplayMetrics getDisplayMetricsLocked(int displayId) {
+            protected DisplayMetrics getDisplayMetrics(int displayId) {
                 return mDisplayMetrics;
             }
         };
@@ -173,25 +173,12 @@
 
         // The implementations should be the same.
         assertSame(resources1.getImpl(), resources2.getImpl());
-
-        final Configuration overrideConfig = new Configuration();
-        overrideConfig.orientation = Configuration.ORIENTATION_LANDSCAPE;
-        Resources resources3 = mResourcesManager.getResources(
-                activity2, APP_ONE_RES_DIR, null, null, null, Display.DEFAULT_DISPLAY,
-                overrideConfig, CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
-
-        // Since we requested new resources for activity2, the resource should be the same
-        // as the one returned before for activity2.
-        assertSame(resources2, resources3);
-
-        // But the implementation has changed.
-        assertNotSame(resources1.getImpl(), resources2.getImpl());
     }
 
     @SmallTest
     public void testThemesGetUpdatedWithNewImpl() {
         Binder activity1 = new Binder();
-        Resources resources1 = mResourcesManager.getResources(
+        Resources resources1 = mResourcesManager.createBaseActivityResources(
                 activity1, APP_ONE_RES_DIR, null, null, null, Display.DEFAULT_DISPLAY, null,
                 CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
         assertNotNull(resources1);
@@ -207,16 +194,59 @@
 
         final Configuration overrideConfig = new Configuration();
         overrideConfig.orientation = Configuration.ORIENTATION_LANDSCAPE;
-        Resources resources2 = mResourcesManager.getResources(
-                activity1, APP_ONE_RES_DIR, null, null, null, Display.DEFAULT_DISPLAY,
-                overrideConfig, CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
-        assertNotNull(resources2);
-        assertSame(resources1, resources2);
-        assertSame(resources2, theme.getResources());
+        mResourcesManager.updateResourcesForActivity(activity1, overrideConfig);
+        assertSame(resources1, theme.getResources());
 
         // Make sure we can still access the data.
         assertTrue(theme.resolveAttribute(android.R.attr.windowNoTitle, value, true));
         assertEquals(TypedValue.TYPE_INT_BOOLEAN, value.type);
         assertTrue(value.data != 0);
     }
+
+    @SmallTest
+    public void testMultipleResourcesForOneActivityGetUpdatedWhenActivityBaseUpdates() {
+        Binder activity1 = new Binder();
+
+        // Create a Resources for the Activity.
+        Configuration config1 = new Configuration();
+        config1.densityDpi = 280;
+        Resources resources1 = mResourcesManager.createBaseActivityResources(
+                activity1, APP_ONE_RES_DIR, null, null, null, Display.DEFAULT_DISPLAY, config1,
+                CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
+        assertNotNull(resources1);
+
+        // Create a Resources based on the Activity.
+        Configuration config2 = new Configuration();
+        config2.screenLayout |= Configuration.SCREENLAYOUT_ROUND_YES;
+        Resources resources2 = mResourcesManager.getResources(
+                activity1, APP_ONE_RES_DIR, null, null, null, Display.DEFAULT_DISPLAY, config2,
+                CompatibilityInfo.DEFAULT_COMPATIBILITY_INFO, null);
+        assertNotNull(resources2);
+
+        assertNotSame(resources1, resources2);
+        assertNotSame(resources1.getImpl(), resources2.getImpl());
+
+        final Configuration expectedConfig1 = new Configuration();
+        expectedConfig1.setLocales(LocaleList.getAdjustedDefault());
+        expectedConfig1.densityDpi = 280;
+        assertEquals(expectedConfig1, resources1.getConfiguration());
+
+        // resources2 should be based on the Activity's override config, so the density should
+        // be the same as resources1.
+        final Configuration expectedConfig2 = new Configuration();
+        expectedConfig2.setLocales(LocaleList.getAdjustedDefault());
+        expectedConfig2.densityDpi = 280;
+        expectedConfig2.screenLayout |= Configuration.SCREENLAYOUT_ROUND_YES;
+        assertEquals(expectedConfig2, resources2.getConfiguration());
+
+        // Now update the Activity base override, and both resources should update.
+        config1.orientation = Configuration.ORIENTATION_LANDSCAPE;
+        mResourcesManager.updateResourcesForActivity(activity1, config1);
+
+        expectedConfig1.orientation = Configuration.ORIENTATION_LANDSCAPE;
+        assertEquals(expectedConfig1, resources1.getConfiguration());
+
+        expectedConfig2.orientation = Configuration.ORIENTATION_LANDSCAPE;
+        assertEquals(expectedConfig2, resources2.getConfiguration());
+    }
 }
diff --git a/core/tests/coretests/src/android/print/BasePrintTest.java b/core/tests/coretests/src/android/print/BasePrintTest.java
index c9bc8aa..d56a405 100644
--- a/core/tests/coretests/src/android/print/BasePrintTest.java
+++ b/core/tests/coretests/src/android/print/BasePrintTest.java
@@ -28,6 +28,7 @@
 import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.os.CancellationSignal;
 import android.os.ParcelFileDescriptor;
 import android.os.SystemClock;
 import android.print.PrintAttributes;
@@ -281,7 +282,8 @@
         }
         if (onRequestCustomPrinterIcon != null) {
             doAnswer(onRequestCustomPrinterIcon).when(callbacks).onRequestCustomPrinterIcon(
-                    any(PrinterId.class), any(CustomPrinterIconCallback.class));
+                    any(PrinterId.class), any(CancellationSignal.class),
+                    any(CustomPrinterIconCallback.class));
         }
         if (onStopPrinterStateTracking != null) {
             doAnswer(onStopPrinterStateTracking).when(callbacks).onStopPrinterStateTracking(
diff --git a/core/tests/coretests/src/android/print/mockservice/PrinterDiscoverySessionCallbacks.java b/core/tests/coretests/src/android/print/mockservice/PrinterDiscoverySessionCallbacks.java
index 26b7cae..be002e2 100644
--- a/core/tests/coretests/src/android/print/mockservice/PrinterDiscoverySessionCallbacks.java
+++ b/core/tests/coretests/src/android/print/mockservice/PrinterDiscoverySessionCallbacks.java
@@ -16,6 +16,7 @@
 
 package android.print.mockservice;
 
+import android.os.CancellationSignal;
 import android.print.PrinterId;
 import android.printservice.CustomPrinterIconCallback;
 
@@ -42,7 +43,7 @@
     public abstract void onStartPrinterStateTracking(PrinterId printerId);
 
     public abstract void onRequestCustomPrinterIcon(PrinterId printerId,
-            CustomPrinterIconCallback callback);
+            CancellationSignal cancellationSignal, CustomPrinterIconCallback callback);
 
     public abstract void onStopPrinterStateTracking(PrinterId printerId);
 
diff --git a/core/tests/coretests/src/android/print/mockservice/StubbablePrinterDiscoverySession.java b/core/tests/coretests/src/android/print/mockservice/StubbablePrinterDiscoverySession.java
index 04683f2..e132d79 100644
--- a/core/tests/coretests/src/android/print/mockservice/StubbablePrinterDiscoverySession.java
+++ b/core/tests/coretests/src/android/print/mockservice/StubbablePrinterDiscoverySession.java
@@ -16,6 +16,7 @@
 
 package android.print.mockservice;
 
+import android.os.CancellationSignal;
 import android.print.PrinterId;
 import android.printservice.CustomPrinterIconCallback;
 import android.printservice.PrintService;
@@ -70,9 +71,9 @@
 
     @Override
     public void onRequestCustomPrinterIcon(PrinterId printerId,
-            CustomPrinterIconCallback callback) {
+            CancellationSignal cancellationSignal, CustomPrinterIconCallback callback) {
         if (mCallbacks != null) {
-            mCallbacks.onRequestCustomPrinterIcon(printerId, callback);
+            mCallbacks.onRequestCustomPrinterIcon(printerId, cancellationSignal, callback);
         }
     }
 
diff --git a/core/tests/coretests/src/android/view/ViewCaptureTest.java b/core/tests/coretests/src/android/view/ViewCaptureTest.java
new file mode 100644
index 0000000..15cfe23
--- /dev/null
+++ b/core/tests/coretests/src/android/view/ViewCaptureTest.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package android.view;
+
+import android.app.Activity;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.support.test.filters.SmallTest;
+import android.support.test.rule.ActivityTestRule;
+import android.support.test.runner.AndroidJUnit4;
+import android.util.SparseIntArray;
+
+import com.android.frameworks.coretests.R;
+
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.assertTrue;
+
+@RunWith(AndroidJUnit4.class)
+public class ViewCaptureTest {
+
+    private static final SparseIntArray EXPECTED_CHILDREN_VISIBILITY = new SparseIntArray();
+    static {
+        EXPECTED_CHILDREN_VISIBILITY.append(R.id.child1, View.VISIBLE);
+        EXPECTED_CHILDREN_VISIBILITY.append(R.id.child2, View.INVISIBLE);
+        EXPECTED_CHILDREN_VISIBILITY.append(R.id.child3, View.GONE);
+        EXPECTED_CHILDREN_VISIBILITY.append(R.id.child4, View.VISIBLE);
+    }
+
+    @Rule
+    public ActivityTestRule<ViewCaptureTestActivity> mActivityRule = new ActivityTestRule<>(
+            ViewCaptureTestActivity.class);
+
+    private Activity mActivity;
+    private ViewGroup mViewToCapture;
+
+    @Before
+    public void setUp() throws Exception {
+        mActivity = mActivityRule.getActivity();
+        mViewToCapture = (ViewGroup) mActivity.findViewById(R.id.capture);
+    }
+
+    @Test
+    @SmallTest
+    public void testCreateSnapshot() {
+        assertChildrenVisibility();
+        testCreateSnapshot(true, R.drawable.view_capture_test_no_children_golden);
+        assertChildrenVisibility();
+        testCreateSnapshot(false, R.drawable.view_capture_test_with_children_golden);
+        assertChildrenVisibility();
+    }
+
+    private void testCreateSnapshot(boolean skipChildren, int goldenResId) {
+        Bitmap result = mViewToCapture.createSnapshot(Bitmap.Config.ARGB_8888, 0, skipChildren);
+        Bitmap golden = BitmapFactory.decodeResource(mActivity.getResources(), goldenResId);
+        assertTrue(golden.sameAs(result));
+    }
+
+    private void assertChildrenVisibility() {
+        for (int i = 0; i < EXPECTED_CHILDREN_VISIBILITY.size(); i++) {
+            int id = EXPECTED_CHILDREN_VISIBILITY.keyAt(i);
+            View child = mViewToCapture.findViewById(id);
+            Assert.assertEquals(EXPECTED_CHILDREN_VISIBILITY.get(id), child.getVisibility());
+        }
+    }
+}
diff --git a/core/tests/coretests/src/android/view/ViewCaptureTestActivity.java b/core/tests/coretests/src/android/view/ViewCaptureTestActivity.java
new file mode 100644
index 0000000..20e3eb5
--- /dev/null
+++ b/core/tests/coretests/src/android/view/ViewCaptureTestActivity.java
@@ -0,0 +1,30 @@
+/*
+ * 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 android.view;
+
+import android.annotation.Nullable;
+import android.app.Activity;
+import android.os.Bundle;
+import com.android.frameworks.coretests.R;
+
+public class ViewCaptureTestActivity extends Activity {
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.view_capture_snapshot);
+    }
+}
diff --git a/docs/docs-redirect-index.html b/docs/docs-redirect-index.html
index dc0bc72..ea5f186 100644
--- a/docs/docs-redirect-index.html
+++ b/docs/docs-redirect-index.html
@@ -1,8 +1,8 @@
-<html>

-<head>

-<meta http-equiv="refresh" content="0;url=framework/index.html">

-</head>

-<body>

-<a href="framework/index.html">click here if you are not redirected</a>

-</body>

-</html>

+<html>
+<head>
+<meta http-equiv="refresh" content="0;url=framework/index.html">
+</head>
+<body>
+<a href="framework/index.html">click here if you are not redirected</a>
+</body>
+</html>
diff --git a/docs/docs-redirect.html b/docs/docs-redirect.html
index 4e0743e..d83564c 100644
--- a/docs/docs-redirect.html
+++ b/docs/docs-redirect.html
@@ -1,8 +1,8 @@
-<html>

-<head>

-<meta http-equiv="refresh" content="0;url=docs/offline.html">

-</head>

-<body>

-<a href="docs/offline.html">click here if you are not redirected</a>

-</body>

-</html>

+<html>
+<head>
+<meta http-equiv="refresh" content="0;url=docs/offline.html">
+</head>
+<body>
+<a href="docs/offline.html">click here if you are not redirected</a>
+</body>
+</html>
diff --git a/docs/docs-samples-redirect.html b/docs/docs-samples-redirect.html
index 4e549e6..abefe6c 100644
--- a/docs/docs-samples-redirect.html
+++ b/docs/docs-samples-redirect.html
@@ -1,8 +1,8 @@
-<html>

-<head>

-<meta http-equiv="refresh" content="0;url=../../samples/">

-</head>

-<body>

-<a href="../../samples/">click here if you are not redirected</a>

-</body>

-</html>

+<html>
+<head>
+<meta http-equiv="refresh" content="0;url=../../samples/">
+</head>
+<body>
+<a href="../../samples/">click here if you are not redirected</a>
+</body>
+</html>
diff --git a/docs/html/guide/topics/renderscript/reference/overview.jd b/docs/html/guide/topics/renderscript/reference/overview.jd
index 5e824ee..017a713 100644
--- a/docs/html/guide/topics/renderscript/reference/overview.jd
+++ b/docs/html/guide/topics/renderscript/reference/overview.jd
@@ -611,7 +611,7 @@
   </tr>
 </tbody></table>
 <h2>Conversion Functions</h2>
-<p> The functions below convert from a numerical vector type to another, of from one color
+<p> The functions below convert from a numerical vector type to another, or from one color
 representation to another.
 </p>
 <table class='jd-sumtable'><tbody>
diff --git a/docs/html/guide/topics/renderscript/reference/rs_convert.jd b/docs/html/guide/topics/renderscript/reference/rs_convert.jd
index d4bf77fa..89fd040 100644
--- a/docs/html/guide/topics/renderscript/reference/rs_convert.jd
+++ b/docs/html/guide/topics/renderscript/reference/rs_convert.jd
@@ -4,7 +4,7 @@
 
 <div class='renderscript'>
 <h2>Overview</h2>
-<p> The functions below convert from a numerical vector type to another, of from one color
+<p> The functions below convert from a numerical vector type to another, or from one color
 representation to another.
 </p>
 <h2>Summary</h2>
diff --git a/docs/html/guide/topics/resources/localization.jd b/docs/html/guide/topics/resources/localization.jd
index 0a96a15..e60ca9f 100644
--- a/docs/html/guide/topics/resources/localization.jd
+++ b/docs/html/guide/topics/resources/localization.jd
@@ -1,484 +1,484 @@
-page.title=Localizing with Resources

-parent.title=Application Resources

-page.tags="localizing","localization","resources", "formats", "l10n"

-parent.link=index.html

-@jd:body

-

-<div id="qv-wrapper">

-    <div id="qv">

-

-<h2>Quickview</h2>

-

-<ul>

-  <li>Use resource sets to create a localized app.</li>

-  <li>Android loads the correct resource set for the user's language and locale.</li>

-  <li>If localized resources are not available, Android loads your default resources.</li>

-</ul>

-

-<h2>In this document</h2>

-<ol>

-  <li><a href="#resource-switching">Overview: Resource-Switching in Android</a></li>

-<li><a href="#using-framework">Using Resources for Localization</a></li>

-<li><a href="#strategies">Localization Tips</a></li>

-<li><a href="#testing">Testing Localized Applications</a></li>

-</ol>

-

-<h2>See also</h2>

-  <ol>

-    <li><a href="{@docRoot}distribute/tools/localization-checklist.html">Localization Checklist</a></li>

-    <li><a href="{@docRoot}guide/topics/resources/providing-resources.html">Providing Resources</a></li>

-    <li><a href="{@docRoot}guide/topics/ui/declaring-layout.html">Layouts</a></li>

-    <li><a href="{@docRoot}reference/android/app/Activity.html#ActivityLifecycle">Activity Lifecycle</a></li>

-</ol>

-</div>

-</div>

-

-<p>Android will run on many  devices in many  regions. To reach the most users,

-your application should handle text, audio files, numbers, currency, and

-graphics in ways appropriate to the locales where your application will be used.

-</p>

-

-<p>This document describes best practices for localizing Android

-applications. The principles apply whether you are developing your application  

-using ADT with Eclipse, Ant-based tools, or any other IDE. </p>

-

-<p>You should already have a working knowledge of Java and be  familiar with

-Android resource loading, the declaration of user interface elements in XML,

-development considerations such as Activity lifecycle, and general principles of

-internationalization and localization. </p>

-

-<p>It is good practice to use the Android resource framework to separate the

-localized aspects of your application as much as possible from the core Java

-functionality:</p>

-

-<ul>

-  <li>You can put most or all of the <em>contents</em> of your application's

-user interface into resource files, as described in this document and in <a

-href="{@docRoot}guide/topics/resources/providing-resources.html">Providing Resources</a>.</li>

-  <li>The <em>behavior</em> of the user interface, on the other hand, is driven

-by your Java code. 

-    For example, if users input data that needs to be formatted or sorted

-differently depending on locale, then you would use Java to handle the data

-programmatically. This document does not cover how to  localize your Java code.

-</li>

-</ul>

-

-<p>For a short guide to localizing strings in your app, see the training lesson, <a

-href="{@docRoot}training/basics/supporting-devices/languages.html">Supporting Different Languages</a>. </p>

-

-

-<h2 id="resource-switching">Overview: Resource-Switching in Android</h2>

-

-<p>Resources are text strings, layouts, sounds, graphics, and any other static

-data that your  Android application  needs. An application can include multiple

-sets of resources, each customized for a different device configuration. When a

-user runs the application,  Android    automatically selects and loads the 

-resources that best match the device.</p>

-

-<p>(This document focuses on localization and locale. For a complete description

-of resource-switching and all the types of configurations that you can

-specify &#8212; screen orientation, touchscreen type, and so on &#8212; see <a

-href="{@docRoot}guide/topics/resources/providing-resources.html#AlternativeResources">Providing

-Alternative Resources</a>.)</p>

-

-<table border="0" cellspacing="0" cellpadding="0">

-  <tr border="0">

-    <td width="180" style="border: 0pt none ;"><p class="special-note">

-    <strong>When you write your application:</strong>

-    <br><br>

-    You create a set of default resources, plus alternatives to be used in

-    different locales.</p></td>

-    <td style="border: 0pt none; padding:0">

-    <p style="border:0; padding:0"><img src="../../../images/resources/right-arrow.png" alt="right-arrow" 

-    width="51" height="17"></p></td>

-    <td width="180" style="border: 0pt none ;"><p class="special-note">

-    <strong>When a user runs your application:</strong>

-    <br><br>The Android system selects which resources to load, based on the

-    device's locale.</p></td>

-  </tr>

-</table>

-

-<p>When you write your application, you create default and alternative resources

-for your application to use. To create  resources, you place files within

-specially named subdirectories of the project's <code>res/</code> directory.

-</p>

-

-

-

-<h3 id="defaults-r-important">Why Default Resources Are Important</h3>

-

-<p>Whenever the application runs in a locale for which you have not provided

-locale-specific text,  Android will load the default strings from

-<code>res/values/strings.xml</code>. If this default  file is absent, or if it 

-is missing a string that your application needs, then your application will not run 

-and will show an error. 

-The example below illustrates what can happen when the default text file is incomplete. </p>

-

-<p><em>Example:</em>

-<p>An application's Java code refers to just two strings, <code>text_a</code> and 

-	<code>text_b</code>. This application includes a localized resource file 

-	(<code>res/values-en/strings.xml</code>) that defines <code>text_a</code> and 

-	<code>text_b</code> in English. This application also includes a default 

-	resource file (<code>res/values/strings.xml</code>) that includes a

-definition for <code>text_a</code>, but not for <code>text_b</code>:

-<ul>

-  <li>This application might compile without a problem. An IDE such as Eclipse 

-  	will not highlight any errors if a resource is missing.</li>

-  <li>When this application is launched on a device with locale set to English, 

-  	the application  might run without a problem, because 

-  	<code>res/values-en/strings.xml</code> contains both of the needed text 

-  	strings.</li>

-  <li>However, <strong>the user  will see an error message and a Force Close 

-  	button</strong> when this application is launched on a device set to a 

-  	language other than English. The application will not load.</li>

-</ul>

-

-

-<p>To prevent this situation, make sure that a <code>res/values/strings.xml</code> 

-	file exists and that it defines every needed string. The situation applies to 

-	all types of resources, not just strings: You 

-	need to create a  set of default resource files containing all 

-	the resources that your application calls upon &#8212; layouts, drawables, 

-	animations, etc. For information about testing, see <a href="#test-for-default">

-	Testing for Default Resources</a>.</p>

-

-<h2 id="using-framework">Using Resources for Localization</h2>

-

-<h3 id="creating-defaults">How to Create Default Resources</h3>

-

-<p>Put the application's default text in

-a file with the following location and name:</p>

-<p><code>&nbsp;&nbsp;&nbsp;&nbsp;res/values/strings.xml</code> (required directory)</p>

-

-<p>The text strings in <code>res/values/strings.xml</code> should  use the

-default language, which is the language that you expect most of your application's users to

-speak.  </p>

-

-<p>The default resource set must also include any default drawables and layouts, 

-	and can include other types of resources such as animations. 

-<br>

-  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/drawable/</code>(required directory holding at least

-  one graphic file, for the application's icon on Google Play)<br>

-  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/layout/</code> (required directory holding an XML

-  file that defines the default layout)<br>

-  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/anim/</code> (required if you have any 

-  <code>res/anim-<em>&lt;qualifiers&gt;</em></code> folders)<br>

-  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/xml/</code> (required if you have any 

-  <code>res/xml-<em>&lt;qualifiers&gt;</em></code> folders)<br>

-  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/raw/</code> (required if you have any 

-  <code>res/raw-<em>&lt;qualifiers&gt;</em></code> folders)

-</p>

-

-<p class="note"><strong>Tip:</strong> In your code, examine each reference to 

-	an Android resource. Make sure that a default resource is defined for each

-	one. Also make sure that the default string file is complete: A <em>

-	localized</em> string file can contain a subset of the strings, but the 

-	<em>default</em> string file must contain them all. 

-</p>

-

-<h3 id="creating-alternatives">How to Create Alternative Resources</h3>

-

-<p>A large part of localizing an application is providing alternative text for

-different languages. In some cases you will also provide alternative graphics,

-sounds, layouts, and other locale-specific resources. </p>

-

-<p>An application can specify many <code>res/<em>&lt;qualifiers&gt;</em>/</code>

-directories, each with different qualifiers. To create an alternative resource for

-a different locale, you use a qualifier that specifies a language or a 

-language-region combination. (The name of a resource directory must conform 

-to the naming scheme described in 

-<a href="{@docRoot}guide/topics/resources/providing-resources.html#AlternativeResources">Providing

-Alternative Resources</a>,

-or else it will not compile.)</p>

-

-<p><em>Example:</em></p>

-

-<p>Suppose that your application's default language is English. Suppose also

-that you want to localize all the text in your application to French, and most

-of the text in your application (everything except the application's title) to

-Japanese. In this case, you could create three alternative <code>strings.xml</code>

-files, each stored in a locale-specific resource directory:</p>

-

-<ol>

-  <li><code>res/values/strings.xml</code><br>

-    Contains  English text for all  the strings that the application uses,

-including text for a string named <code>title</code>.</li>

-  <li><code>res/values-fr/strings.xml</code><br>

-    Contain French text for all  the strings, including <code>title</code>.</li>

-  <li><code>res/values-ja/strings.xml</code><br>

-    Contain Japanese text for all  the strings <em>except</em>

-<code>title</code>.<br>

-  <code></code></li>

-</ol>

-

-<p>If your Java code refers to <code>R.string.title</code>,  here is what will

-happen at runtime:</p>

-

-<ul>

-  <li>If the device is set to any language other than French, Android will load

-<code>title</code> from the <code>res/values/strings.xml</code> file.</li>

-  <li>If the device is set to French, Android will load <code>title</code> from

-the <code>res/values-fr/strings.xml</code> file.</li>

-</ul>

-

-<p>Notice that if the device is set to Japanese, Android will look for

-<code>title</code> in the <code>res/values-ja/strings.xml</code> file. But

-because no such string is included in that file, Android will fall back to the

-default, and will load  <code>title</code> in English from the

-<code>res/values/strings.xml</code> file.  </p>

-

-<h3 id="resource-precedence">Which Resources Take Precedence?</h3>

-

-<p> If multiple resource files match a device's configuration, Android follows a

-set of rules in deciding which file to use. Among the qualifiers that can be

-specified in a resource directory name, <strong>locale almost always takes

-precedence</strong>. </p>

-<p><em>Example:</em></p>

-

-<p>Assume that an application  includes a default set of graphics and two other

-sets of graphics, each optimized for a different device setup:</p>

-

-<ul>

-  <li><code>res/drawable/</code><br>

-    Contains

-  default graphics.</li>

-  <li><code>res/drawable-small-land-stylus/</code><br>

-  Contains  graphics optimized for use with a device that expects input from a 

-  stylus and has a QVGA low-density screen in landscape orientation.</li>

-  <li><code>res/drawable-ja/</code> <br>

-  Contains  graphics optimized for use with Japanese.</li>

-</ul>

-

-<p>If the application runs on a device that is configured to use Japanese,

-Android will load graphics from  <code>res/drawable-ja/</code>, even if the

-device happens to be one that expects input from a stylus and has a QVGA 

-low-density screen in landscape orientation.</p>

-

-<p class="note"><strong>Exception:</strong> The only qualifiers that take

-precedence over locale in the selection process are MCC and MNC (mobile country

-code and mobile network code). </p>

-

-<p><em>Example:</em></p>

-

-<p>Assume that you have the following situation:</p>

-

-<ul>

-  <li>The application code calls for <code>R.string.text_a</code></li>

-  <li>Two relevant resource files are available:

-    <ul>

-      <li><code>res/values-mcc404/strings.xml</code>, which includes

-<code>text_a</code> in the application's default language, in this case

-English.</li>

-      <li><code>res/values-hi/strings.xml</code>, which includes

-<code>text_a</code> in Hindi.</li>

-    </ul>

-  </li>

-  <li>The application is running on a device that has the following

-configuration:

-    <ul>

-      <li>The SIM card is connected to a mobile network in India (MCC 404).</li>

-      <li>The language is set to Hindi (<code>hi</code>).</li>

-    </ul>

-  </li>

-</ul>

-

-<p>Android will load <code>text_a</code> from

-<code>res/values-mcc404/strings.xml</code> (in English), even if the device is

-configured for Hindi. That is because in the resource-selection process, Android

-will prefer an MCC match over a language match. </p>

-

-<p>The selection process is not always as straightforward as these examples

-suggest. Please read  <a

-href="{@docRoot}guide/topics/resources/providing-resources.html#BestMatch">How Android Finds

-the Best-matching Resource</a> for a more nuanced description of the

-process. All the qualifiers are described and listed in order of

-precedence in <a

-href="{@docRoot}guide/topics/resources/providing-resources.html#table2">Table 2 of Providing

-Alternative Resources</a>.</p>

-

-<h3 id="referring-to-resources">Referring to Resources in Java</h3>

-

-<p>In your application's Java code, you refer to  resources using the syntax

-<code>R.<em>resource_type</em>.<em>resource_name</em></code> or

-<code>android.R.<em>resource_type</em>.<em>resource_name</em></code><em>.</em>

-For more about this, see <a

-href="{@docRoot}guide/topics/resources/accessing-resources.html">Accessing Resources</a>.</p>

-

-<h2 id="checklist">Localization Checklist</h2>

-

-<p>For a complete overview of the process of localizing and distributing an Android application,

-see the <a href="{@docRoot}distribute/tools/localization-checklist.html">Localization

-Checklist</a> document.</p>

-

-<h2 id="strategies">Localization Tips</h2>

-

-<h4 id="failing2">Design your application  to work in any locale</h4>

-

-<p>You cannot assume anything about the device on which a user will

-run your application. The device might have hardware that you were not

-anticipating, or it might be set to a locale that you did not plan for or that 

-you cannot test. Design your application so that it will function normally or fail gracefully no 

-matter what device it runs on.</p>

-

-<p class="note"><strong>Important:</strong> Make sure that your application

-includes a full set of default resources.</p> <p>Make sure to include

-<code>res/drawable/</code> and a <code>res/values/</code> folders (without any

-additional modifiers in the folder names) that contain all the images and text

-that your application will need. </p>

-

-<p>If an application is missing even one default resource, it will not run on a 

-	device that is set to an unsupported locale. For example, the 

-	<code>res/values/strings.xml</code> default file might lack one string that 

-	the application needs: When the application runs in an unsupported locale and 

-	attempts to load <code>res/values/strings.xml</code>, the user will see an 

-	error message and a Force Close button. An IDE such as Eclipse will not 

-	highlight this kind of error, and you will not see the problem when you 

-	test the application on a device or emulator that is set to a supported locale.</p>

-

-<p>For more information, see <a href="#test-for-default">Testing for Default Resources</a>.</p>

-

-<h4>Design a flexible layout</h4>

-

-<p> If you need to rearrange your layout to fit a certain language (for example

-German with its long words), you can create an alternative layout for that

-language (for example <code>res/layout-de/main.xml</code>). However, doing this

-can make your application harder to maintain.  It is better to create a single

-layout that is more flexible.</p>

-

-<p>Another typical situation is a language that requires something different in

-its layout. For example, you might have a contact form that should include  two

-name fields when the application runs in Japanese, but three name fields when

-the application  runs in some other language. You could handle this in either of

-two ways:</p>

-

-<ul>

-  <li>Create  one  layout with a field that you can programmatically enable or

-disable, based on the language, or</li>

-  <li>Have the main layout include another layout that  includes the changeable

-field. The second layout can have different configurations for different

-languages.</li>

-</ul>

-

-<h4>Avoid creating more resource files and text strings than you need</h4>

-

-<p>You probably do not need to create a locale-specific

-alternative for every resource in your application. For example, the layout

-defined in the <code>res/layout/main.xml</code> file might work in any locale,

-in which case there would be no need to create any alternative layout files.

-</p>

-

-<p>Also, you might not need to create alternative text for every

-string. For example, assume the following:</p>

-

-<ul>

-  <li>Your application's default language is American

-English. Every string that the application uses is defined, using American

-English spellings, in <code>res/values/strings.xml</code>. </li>

-

-  <li>For  a few important phrases, you want to provide

-British English spelling. You want these alternative strings to be used when your

-application runs on a device in the United Kingdom. </li>

-</ul>

-

-<p>To do this, you could create a small file called

-<code>res/values-en-rGB/strings.xml</code> that includes only the strings that

-should be different when the application  runs in the U.K. For all the rest of

-the strings, the application will fall back to the defaults and use what is

-defined in <code>res/values/strings.xml</code>.</p>

-

-<h4>Use the Android Context object for manual locale lookup</h4>

-

-<p>You can look up the locale using the {@link android.content.Context} object

-that Android makes available:</p>

-

-<pre>String locale = context.getResources().getConfiguration().locale.getDisplayName();</pre>

-

-<h2 id="testing">Testing Localized Applications</h2>

-

-<h3 id="device">Testing on a Device</h3>

-<p>Keep in mind that the device you are testing may be significantly different from 

-	the devices available to consumers in other geographies. The locales available 

-	on your device may differ from those available on other devices. Also, the 

-	resolution and density of the device screen may differ, which could affect 

-	the display of strings and drawables in your UI.</p>

-

-<p>To change the locale or language on a device, use the Settings application.</p>

-

-<h3 id="emulator">Testing on an Emulator</h3>

-

-<p>For details about using the emulator, see See <a

-href="{@docRoot}tools/help/emulator.html">Android Emulator</a>.</p>

-<h4>Creating and using a custom locale</h4>

-

-<p>A &quot;custom&quot; locale is a language/region combination that the Android

-system image does not explicitly support. (For a list of supported locales in

-Android platforms see the Version Notes in the <a

-href="{@docRoot}sdk/index.html">SDK</a> tab). You can test

-how your application will run in a custom locale by creating a custom locale in

-the emulator. There are two ways to do this:</p>

-

-<ul>

-  <li>Use the Custom Locale application, which is accessible from the

-Application tab. (After you create a custom locale, switch to it by 

-pressing and holding the locale name.)</li>

-  <li>Change to a custom locale from the adb shell, as described below.</li>

-</ul>

-

-<p>When you set the emulator to a locale that is not available in the Android

-system image, the system itself will display in its default language. Your

-application, however, should localize properly.</p>

-

-<h4>Changing the emulator locale from the adb shell</h4>

-

-<p>To change the locale in the emulator by using the adb shell. </p>

-

-<ol>

-  <li>Pick the locale you want to test and determine its BCP-47 language tag, for

-example, Canadian French would be <code>fr-CA</code>.<br>

-  </li>

-  <li>Launch an emulator.</li>

-  <li>From a command-line shell on the host computer, run the following

-command:<br>

-    <code>adb shell</code><br>

-  or if you have a device attached, specify that you want the emulator by adding

-the <code>-e</code> option:<br>

-  <code>adb -e shell</code></li>

-  <li>At  the  adb shell prompt (<code>#</code>), run this command: <br>

-    <code>setprop persist.sys.locale [<em>BCP-47 language tag</em>];stop;sleep 5;start <br>

-    </code>Replace bracketed sections with the  appropriate codes from Step

-1.</li>

-</ol>

-

-<p>For instance, to test in Canadian French:</p>

-

-<p><code>setprop persist.sys.locale fr-CA;stop;sleep 5;start </code></p>

-

-<p>This will cause the emulator  to restart. (It will look like a full reboot,

-but it is not.) Once the Home screen appears again, re-launch your application (for

-example, click the Run icon in Eclipse), and the application will launch with

-the new locale. </p>

-

-<h3 id="test-for-default">Testing for Default Resources</h3>

-<p>Here's how to test whether an application includes every string resource that it needs:  </p>

-<ol><li>Set the emulator or device to a language that your application does not 

-	support. For example, if the application has French strings in 

-	<code>res/values-fr/</code> but does not have any Spanish strings in 

-	<code>res/values-es/</code>, then set the emulator's locale to Spanish. 

-	(You can use the Custom Locale application to set the emulator to an 

-	unsupported locale.)</li>

-	<li>Run the application.</li>  

-<li>If the application shows an error message and a Force Close button, it might 

-	be looking for a string that is not available. Make sure that your 

-	<code>res/values/strings.xml</code> file includes a definition for 

-	every string that the application uses.</li>

-</ol> 

-</p> 

-

-<p>If the test is successful, repeat it for other types of 

-	configurations. For example, if the application has a layout file called 

-	<code>res/layout-land/main.xml</code> but does not contain a file called 

-	<code>res/layout-port/main.xml</code>, then set the emulator or device to 

-	portrait orientation and see if the application will run. 

-

-

-

+page.title=Localizing with Resources
+parent.title=Application Resources
+page.tags="localizing","localization","resources", "formats", "l10n"
+parent.link=index.html
+@jd:body
+
+<div id="qv-wrapper">
+    <div id="qv">
+
+<h2>Quickview</h2>
+
+<ul>
+  <li>Use resource sets to create a localized app.</li>
+  <li>Android loads the correct resource set for the user's language and locale.</li>
+  <li>If localized resources are not available, Android loads your default resources.</li>
+</ul>
+
+<h2>In this document</h2>
+<ol>
+  <li><a href="#resource-switching">Overview: Resource-Switching in Android</a></li>
+<li><a href="#using-framework">Using Resources for Localization</a></li>
+<li><a href="#strategies">Localization Tips</a></li>
+<li><a href="#testing">Testing Localized Applications</a></li>
+</ol>
+
+<h2>See also</h2>
+  <ol>
+    <li><a href="{@docRoot}distribute/tools/localization-checklist.html">Localization Checklist</a></li>
+    <li><a href="{@docRoot}guide/topics/resources/providing-resources.html">Providing Resources</a></li>
+    <li><a href="{@docRoot}guide/topics/ui/declaring-layout.html">Layouts</a></li>
+    <li><a href="{@docRoot}reference/android/app/Activity.html#ActivityLifecycle">Activity Lifecycle</a></li>
+</ol>
+</div>
+</div>
+
+<p>Android will run on many  devices in many  regions. To reach the most users,
+your application should handle text, audio files, numbers, currency, and
+graphics in ways appropriate to the locales where your application will be used.
+</p>
+
+<p>This document describes best practices for localizing Android
+applications. The principles apply whether you are developing your application  
+using ADT with Eclipse, Ant-based tools, or any other IDE. </p>
+
+<p>You should already have a working knowledge of Java and be  familiar with
+Android resource loading, the declaration of user interface elements in XML,
+development considerations such as Activity lifecycle, and general principles of
+internationalization and localization. </p>
+
+<p>It is good practice to use the Android resource framework to separate the
+localized aspects of your application as much as possible from the core Java
+functionality:</p>
+
+<ul>
+  <li>You can put most or all of the <em>contents</em> of your application's
+user interface into resource files, as described in this document and in <a
+href="{@docRoot}guide/topics/resources/providing-resources.html">Providing Resources</a>.</li>
+  <li>The <em>behavior</em> of the user interface, on the other hand, is driven
+by your Java code. 
+    For example, if users input data that needs to be formatted or sorted
+differently depending on locale, then you would use Java to handle the data
+programmatically. This document does not cover how to  localize your Java code.
+</li>
+</ul>
+
+<p>For a short guide to localizing strings in your app, see the training lesson, <a
+href="{@docRoot}training/basics/supporting-devices/languages.html">Supporting Different Languages</a>. </p>
+
+
+<h2 id="resource-switching">Overview: Resource-Switching in Android</h2>
+
+<p>Resources are text strings, layouts, sounds, graphics, and any other static
+data that your  Android application  needs. An application can include multiple
+sets of resources, each customized for a different device configuration. When a
+user runs the application,  Android    automatically selects and loads the 
+resources that best match the device.</p>
+
+<p>(This document focuses on localization and locale. For a complete description
+of resource-switching and all the types of configurations that you can
+specify &#8212; screen orientation, touchscreen type, and so on &#8212; see <a
+href="{@docRoot}guide/topics/resources/providing-resources.html#AlternativeResources">Providing
+Alternative Resources</a>.)</p>
+
+<table border="0" cellspacing="0" cellpadding="0">
+  <tr border="0">
+    <td width="180" style="border: 0pt none ;"><p class="special-note">
+    <strong>When you write your application:</strong>
+    <br><br>
+    You create a set of default resources, plus alternatives to be used in
+    different locales.</p></td>
+    <td style="border: 0pt none; padding:0">
+    <p style="border:0; padding:0"><img src="../../../images/resources/right-arrow.png" alt="right-arrow" 
+    width="51" height="17"></p></td>
+    <td width="180" style="border: 0pt none ;"><p class="special-note">
+    <strong>When a user runs your application:</strong>
+    <br><br>The Android system selects which resources to load, based on the
+    device's locale.</p></td>
+  </tr>
+</table>
+
+<p>When you write your application, you create default and alternative resources
+for your application to use. To create  resources, you place files within
+specially named subdirectories of the project's <code>res/</code> directory.
+</p>
+
+
+
+<h3 id="defaults-r-important">Why Default Resources Are Important</h3>
+
+<p>Whenever the application runs in a locale for which you have not provided
+locale-specific text,  Android will load the default strings from
+<code>res/values/strings.xml</code>. If this default  file is absent, or if it 
+is missing a string that your application needs, then your application will not run 
+and will show an error. 
+The example below illustrates what can happen when the default text file is incomplete. </p>
+
+<p><em>Example:</em>
+<p>An application's Java code refers to just two strings, <code>text_a</code> and 
+	<code>text_b</code>. This application includes a localized resource file 
+	(<code>res/values-en/strings.xml</code>) that defines <code>text_a</code> and 
+	<code>text_b</code> in English. This application also includes a default 
+	resource file (<code>res/values/strings.xml</code>) that includes a
+definition for <code>text_a</code>, but not for <code>text_b</code>:
+<ul>
+  <li>This application might compile without a problem. An IDE such as Eclipse 
+  	will not highlight any errors if a resource is missing.</li>
+  <li>When this application is launched on a device with locale set to English, 
+  	the application  might run without a problem, because 
+  	<code>res/values-en/strings.xml</code> contains both of the needed text 
+  	strings.</li>
+  <li>However, <strong>the user  will see an error message and a Force Close 
+  	button</strong> when this application is launched on a device set to a 
+  	language other than English. The application will not load.</li>
+</ul>
+
+
+<p>To prevent this situation, make sure that a <code>res/values/strings.xml</code> 
+	file exists and that it defines every needed string. The situation applies to 
+	all types of resources, not just strings: You 
+	need to create a  set of default resource files containing all 
+	the resources that your application calls upon &#8212; layouts, drawables, 
+	animations, etc. For information about testing, see <a href="#test-for-default">
+	Testing for Default Resources</a>.</p>
+
+<h2 id="using-framework">Using Resources for Localization</h2>
+
+<h3 id="creating-defaults">How to Create Default Resources</h3>
+
+<p>Put the application's default text in
+a file with the following location and name:</p>
+<p><code>&nbsp;&nbsp;&nbsp;&nbsp;res/values/strings.xml</code> (required directory)</p>
+
+<p>The text strings in <code>res/values/strings.xml</code> should  use the
+default language, which is the language that you expect most of your application's users to
+speak.  </p>
+
+<p>The default resource set must also include any default drawables and layouts, 
+	and can include other types of resources such as animations. 
+<br>
+  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/drawable/</code>(required directory holding at least
+  one graphic file, for the application's icon on Google Play)<br>
+  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/layout/</code> (required directory holding an XML
+  file that defines the default layout)<br>
+  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/anim/</code> (required if you have any 
+  <code>res/anim-<em>&lt;qualifiers&gt;</em></code> folders)<br>
+  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/xml/</code> (required if you have any 
+  <code>res/xml-<em>&lt;qualifiers&gt;</em></code> folders)<br>
+  <code>&nbsp;&nbsp;&nbsp;&nbsp;res/raw/</code> (required if you have any 
+  <code>res/raw-<em>&lt;qualifiers&gt;</em></code> folders)
+</p>
+
+<p class="note"><strong>Tip:</strong> In your code, examine each reference to 
+	an Android resource. Make sure that a default resource is defined for each
+	one. Also make sure that the default string file is complete: A <em>
+	localized</em> string file can contain a subset of the strings, but the 
+	<em>default</em> string file must contain them all. 
+</p>
+
+<h3 id="creating-alternatives">How to Create Alternative Resources</h3>
+
+<p>A large part of localizing an application is providing alternative text for
+different languages. In some cases you will also provide alternative graphics,
+sounds, layouts, and other locale-specific resources. </p>
+
+<p>An application can specify many <code>res/<em>&lt;qualifiers&gt;</em>/</code>
+directories, each with different qualifiers. To create an alternative resource for
+a different locale, you use a qualifier that specifies a language or a 
+language-region combination. (The name of a resource directory must conform 
+to the naming scheme described in 
+<a href="{@docRoot}guide/topics/resources/providing-resources.html#AlternativeResources">Providing
+Alternative Resources</a>,
+or else it will not compile.)</p>
+
+<p><em>Example:</em></p>
+
+<p>Suppose that your application's default language is English. Suppose also
+that you want to localize all the text in your application to French, and most
+of the text in your application (everything except the application's title) to
+Japanese. In this case, you could create three alternative <code>strings.xml</code>
+files, each stored in a locale-specific resource directory:</p>
+
+<ol>
+  <li><code>res/values/strings.xml</code><br>
+    Contains  English text for all  the strings that the application uses,
+including text for a string named <code>title</code>.</li>
+  <li><code>res/values-fr/strings.xml</code><br>
+    Contain French text for all  the strings, including <code>title</code>.</li>
+  <li><code>res/values-ja/strings.xml</code><br>
+    Contain Japanese text for all  the strings <em>except</em>
+<code>title</code>.<br>
+  <code></code></li>
+</ol>
+
+<p>If your Java code refers to <code>R.string.title</code>,  here is what will
+happen at runtime:</p>
+
+<ul>
+  <li>If the device is set to any language other than French, Android will load
+<code>title</code> from the <code>res/values/strings.xml</code> file.</li>
+  <li>If the device is set to French, Android will load <code>title</code> from
+the <code>res/values-fr/strings.xml</code> file.</li>
+</ul>
+
+<p>Notice that if the device is set to Japanese, Android will look for
+<code>title</code> in the <code>res/values-ja/strings.xml</code> file. But
+because no such string is included in that file, Android will fall back to the
+default, and will load  <code>title</code> in English from the
+<code>res/values/strings.xml</code> file.  </p>
+
+<h3 id="resource-precedence">Which Resources Take Precedence?</h3>
+
+<p> If multiple resource files match a device's configuration, Android follows a
+set of rules in deciding which file to use. Among the qualifiers that can be
+specified in a resource directory name, <strong>locale almost always takes
+precedence</strong>. </p>
+<p><em>Example:</em></p>
+
+<p>Assume that an application  includes a default set of graphics and two other
+sets of graphics, each optimized for a different device setup:</p>
+
+<ul>
+  <li><code>res/drawable/</code><br>
+    Contains
+  default graphics.</li>
+  <li><code>res/drawable-small-land-stylus/</code><br>
+  Contains  graphics optimized for use with a device that expects input from a 
+  stylus and has a QVGA low-density screen in landscape orientation.</li>
+  <li><code>res/drawable-ja/</code> <br>
+  Contains  graphics optimized for use with Japanese.</li>
+</ul>
+
+<p>If the application runs on a device that is configured to use Japanese,
+Android will load graphics from  <code>res/drawable-ja/</code>, even if the
+device happens to be one that expects input from a stylus and has a QVGA 
+low-density screen in landscape orientation.</p>
+
+<p class="note"><strong>Exception:</strong> The only qualifiers that take
+precedence over locale in the selection process are MCC and MNC (mobile country
+code and mobile network code). </p>
+
+<p><em>Example:</em></p>
+
+<p>Assume that you have the following situation:</p>
+
+<ul>
+  <li>The application code calls for <code>R.string.text_a</code></li>
+  <li>Two relevant resource files are available:
+    <ul>
+      <li><code>res/values-mcc404/strings.xml</code>, which includes
+<code>text_a</code> in the application's default language, in this case
+English.</li>
+      <li><code>res/values-hi/strings.xml</code>, which includes
+<code>text_a</code> in Hindi.</li>
+    </ul>
+  </li>
+  <li>The application is running on a device that has the following
+configuration:
+    <ul>
+      <li>The SIM card is connected to a mobile network in India (MCC 404).</li>
+      <li>The language is set to Hindi (<code>hi</code>).</li>
+    </ul>
+  </li>
+</ul>
+
+<p>Android will load <code>text_a</code> from
+<code>res/values-mcc404/strings.xml</code> (in English), even if the device is
+configured for Hindi. That is because in the resource-selection process, Android
+will prefer an MCC match over a language match. </p>
+
+<p>The selection process is not always as straightforward as these examples
+suggest. Please read  <a
+href="{@docRoot}guide/topics/resources/providing-resources.html#BestMatch">How Android Finds
+the Best-matching Resource</a> for a more nuanced description of the
+process. All the qualifiers are described and listed in order of
+precedence in <a
+href="{@docRoot}guide/topics/resources/providing-resources.html#table2">Table 2 of Providing
+Alternative Resources</a>.</p>
+
+<h3 id="referring-to-resources">Referring to Resources in Java</h3>
+
+<p>In your application's Java code, you refer to  resources using the syntax
+<code>R.<em>resource_type</em>.<em>resource_name</em></code> or
+<code>android.R.<em>resource_type</em>.<em>resource_name</em></code><em>.</em>
+For more about this, see <a
+href="{@docRoot}guide/topics/resources/accessing-resources.html">Accessing Resources</a>.</p>
+
+<h2 id="checklist">Localization Checklist</h2>
+
+<p>For a complete overview of the process of localizing and distributing an Android application,
+see the <a href="{@docRoot}distribute/tools/localization-checklist.html">Localization
+Checklist</a> document.</p>
+
+<h2 id="strategies">Localization Tips</h2>
+
+<h4 id="failing2">Design your application  to work in any locale</h4>
+
+<p>You cannot assume anything about the device on which a user will
+run your application. The device might have hardware that you were not
+anticipating, or it might be set to a locale that you did not plan for or that 
+you cannot test. Design your application so that it will function normally or fail gracefully no 
+matter what device it runs on.</p>
+
+<p class="note"><strong>Important:</strong> Make sure that your application
+includes a full set of default resources.</p> <p>Make sure to include
+<code>res/drawable/</code> and a <code>res/values/</code> folders (without any
+additional modifiers in the folder names) that contain all the images and text
+that your application will need. </p>
+
+<p>If an application is missing even one default resource, it will not run on a 
+	device that is set to an unsupported locale. For example, the 
+	<code>res/values/strings.xml</code> default file might lack one string that 
+	the application needs: When the application runs in an unsupported locale and 
+	attempts to load <code>res/values/strings.xml</code>, the user will see an 
+	error message and a Force Close button. An IDE such as Eclipse will not 
+	highlight this kind of error, and you will not see the problem when you 
+	test the application on a device or emulator that is set to a supported locale.</p>
+
+<p>For more information, see <a href="#test-for-default">Testing for Default Resources</a>.</p>
+
+<h4>Design a flexible layout</h4>
+
+<p> If you need to rearrange your layout to fit a certain language (for example
+German with its long words), you can create an alternative layout for that
+language (for example <code>res/layout-de/main.xml</code>). However, doing this
+can make your application harder to maintain.  It is better to create a single
+layout that is more flexible.</p>
+
+<p>Another typical situation is a language that requires something different in
+its layout. For example, you might have a contact form that should include  two
+name fields when the application runs in Japanese, but three name fields when
+the application  runs in some other language. You could handle this in either of
+two ways:</p>
+
+<ul>
+  <li>Create  one  layout with a field that you can programmatically enable or
+disable, based on the language, or</li>
+  <li>Have the main layout include another layout that  includes the changeable
+field. The second layout can have different configurations for different
+languages.</li>
+</ul>
+
+<h4>Avoid creating more resource files and text strings than you need</h4>
+
+<p>You probably do not need to create a locale-specific
+alternative for every resource in your application. For example, the layout
+defined in the <code>res/layout/main.xml</code> file might work in any locale,
+in which case there would be no need to create any alternative layout files.
+</p>
+
+<p>Also, you might not need to create alternative text for every
+string. For example, assume the following:</p>
+
+<ul>
+  <li>Your application's default language is American
+English. Every string that the application uses is defined, using American
+English spellings, in <code>res/values/strings.xml</code>. </li>
+
+  <li>For  a few important phrases, you want to provide
+British English spelling. You want these alternative strings to be used when your
+application runs on a device in the United Kingdom. </li>
+</ul>
+
+<p>To do this, you could create a small file called
+<code>res/values-en-rGB/strings.xml</code> that includes only the strings that
+should be different when the application  runs in the U.K. For all the rest of
+the strings, the application will fall back to the defaults and use what is
+defined in <code>res/values/strings.xml</code>.</p>
+
+<h4>Use the Android Context object for manual locale lookup</h4>
+
+<p>You can look up the locale using the {@link android.content.Context} object
+that Android makes available:</p>
+
+<pre>String locale = context.getResources().getConfiguration().locale.getDisplayName();</pre>
+
+<h2 id="testing">Testing Localized Applications</h2>
+
+<h3 id="device">Testing on a Device</h3>
+<p>Keep in mind that the device you are testing may be significantly different from 
+	the devices available to consumers in other geographies. The locales available 
+	on your device may differ from those available on other devices. Also, the 
+	resolution and density of the device screen may differ, which could affect 
+	the display of strings and drawables in your UI.</p>
+
+<p>To change the locale or language on a device, use the Settings application.</p>
+
+<h3 id="emulator">Testing on an Emulator</h3>
+
+<p>For details about using the emulator, see See <a
+href="{@docRoot}tools/help/emulator.html">Android Emulator</a>.</p>
+<h4>Creating and using a custom locale</h4>
+
+<p>A &quot;custom&quot; locale is a language/region combination that the Android
+system image does not explicitly support. (For a list of supported locales in
+Android platforms see the Version Notes in the <a
+href="{@docRoot}sdk/index.html">SDK</a> tab). You can test
+how your application will run in a custom locale by creating a custom locale in
+the emulator. There are two ways to do this:</p>
+
+<ul>
+  <li>Use the Custom Locale application, which is accessible from the
+Application tab. (After you create a custom locale, switch to it by 
+pressing and holding the locale name.)</li>
+  <li>Change to a custom locale from the adb shell, as described below.</li>
+</ul>
+
+<p>When you set the emulator to a locale that is not available in the Android
+system image, the system itself will display in its default language. Your
+application, however, should localize properly.</p>
+
+<h4>Changing the emulator locale from the adb shell</h4>
+
+<p>To change the locale in the emulator by using the adb shell. </p>
+
+<ol>
+  <li>Pick the locale you want to test and determine its BCP-47 language tag, for
+example, Canadian French would be <code>fr-CA</code>.<br>
+  </li>
+  <li>Launch an emulator.</li>
+  <li>From a command-line shell on the host computer, run the following
+command:<br>
+    <code>adb shell</code><br>
+  or if you have a device attached, specify that you want the emulator by adding
+the <code>-e</code> option:<br>
+  <code>adb -e shell</code></li>
+  <li>At  the  adb shell prompt (<code>#</code>), run this command: <br>
+    <code>setprop persist.sys.locale [<em>BCP-47 language tag</em>];stop;sleep 5;start <br>
+    </code>Replace bracketed sections with the  appropriate codes from Step
+1.</li>
+</ol>
+
+<p>For instance, to test in Canadian French:</p>
+
+<p><code>setprop persist.sys.locale fr-CA;stop;sleep 5;start </code></p>
+
+<p>This will cause the emulator  to restart. (It will look like a full reboot,
+but it is not.) Once the Home screen appears again, re-launch your application (for
+example, click the Run icon in Eclipse), and the application will launch with
+the new locale. </p>
+
+<h3 id="test-for-default">Testing for Default Resources</h3>
+<p>Here's how to test whether an application includes every string resource that it needs:  </p>
+<ol><li>Set the emulator or device to a language that your application does not 
+	support. For example, if the application has French strings in 
+	<code>res/values-fr/</code> but does not have any Spanish strings in 
+	<code>res/values-es/</code>, then set the emulator's locale to Spanish. 
+	(You can use the Custom Locale application to set the emulator to an 
+	unsupported locale.)</li>
+	<li>Run the application.</li>  
+<li>If the application shows an error message and a Force Close button, it might 
+	be looking for a string that is not available. Make sure that your 
+	<code>res/values/strings.xml</code> file includes a definition for 
+	every string that the application uses.</li>
+</ol> 
+</p> 
+
+<p>If the test is successful, repeat it for other types of 
+	configurations. For example, if the application has a layout file called 
+	<code>res/layout-land/main.xml</code> but does not contain a file called 
+	<code>res/layout-port/main.xml</code>, then set the emulator or device to 
+	portrait orientation and see if the application will run. 
+
+
+
diff --git a/docs/overview-ext.html b/docs/overview-ext.html
index 5720245..f80d629 100644
--- a/docs/overview-ext.html
+++ b/docs/overview-ext.html
@@ -1,8 +1,8 @@
-<body>

-Some random libraries that we've imported:

-<ul>

-    <li>GData</li>

-    <li>Apache commons HTTPClient</li>

-    <li>A sax parser</li>

-</ul>

-</body>

+<body>
+Some random libraries that we've imported:
+<ul>
+    <li>GData</li>
+    <li>Apache commons HTTPClient</li>
+    <li>A sax parser</li>
+</ul>
+</body>
diff --git a/graphics/java/android/graphics/FontListParser.java b/graphics/java/android/graphics/FontListParser.java
index 8f7c6a62..7871aa8 100644
--- a/graphics/java/android/graphics/FontListParser.java
+++ b/graphics/java/android/graphics/FontListParser.java
@@ -179,10 +179,10 @@
         int tag = 0;
         String tagStr = parser.getAttributeValue(null, "tag");
         if (tagStr != null && TAG_PATTERN.matcher(tagStr).matches()) {
-            tag = tagStr.charAt(0) << 24 +
-                  tagStr.charAt(1) << 16 +
-                  tagStr.charAt(2) <<  8 +
-                  tagStr.charAt(3);
+            tag = (tagStr.charAt(0) << 24) +
+                  (tagStr.charAt(1) << 16) +
+                  (tagStr.charAt(2) <<  8) +
+                  (tagStr.charAt(3)      );
         } else {
             throw new XmlPullParserException("Invalid tag attribute value.", parser, null);
         }
diff --git a/keystore/java/android/security/IKeyChainService.aidl b/keystore/java/android/security/IKeyChainService.aidl
index cfcb4e0..deea972 100644
--- a/keystore/java/android/security/IKeyChainService.aidl
+++ b/keystore/java/android/security/IKeyChainService.aidl
@@ -27,12 +27,13 @@
     // APIs used by KeyChain
     String requestPrivateKey(String alias);
     byte[] getCertificate(String alias);
+    byte[] getCaCertificates(String alias);
 
     // APIs used by CertInstaller
     void installCaCertificate(in byte[] caCertificate);
 
     // APIs used by DevicePolicyManager
-    boolean installKeyPair(in byte[] privateKey, in byte[] userCert, String alias);
+    boolean installKeyPair(in byte[] privateKey, in byte[] userCert, in byte[] certChain, String alias);
     boolean removeKeyPair(String alias);
 
     // APIs used by Settings
diff --git a/keystore/java/android/security/KeyChain.java b/keystore/java/android/security/KeyChain.java
index 0886487..cce58c2 100644
--- a/keystore/java/android/security/KeyChain.java
+++ b/keystore/java/android/security/KeyChain.java
@@ -42,6 +42,8 @@
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
 import java.security.cert.X509Certificate;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 import java.util.Locale;
 import java.util.concurrent.BlockingQueue;
@@ -389,7 +391,12 @@
 
     /**
      * Returns the {@code X509Certificate} chain for the requested
-     * alias, or null if no there is no result.
+     * alias, or null if there is no result.
+     * <p>
+     * <strong>Note:</strong> If a certificate chain was explicitly specified when the alias was
+     * installed, this method will return that chain. If only the client certificate was specified
+     * at the installation time, this method will try to build a certificate chain using all
+     * available trust anchors (preinstalled and user-added).
      *
      * <p> This method may block while waiting for a connection to another process, and must never
      * be called from the main thread.
@@ -413,11 +420,31 @@
             if (certificateBytes == null) {
                 return null;
             }
-
-            TrustedCertificateStore store = new TrustedCertificateStore();
-            List<X509Certificate> chain = store
-                    .getCertificateChain(toCertificate(certificateBytes));
-            return chain.toArray(new X509Certificate[chain.size()]);
+            X509Certificate leafCert = toCertificate(certificateBytes);
+            final byte[] certChainBytes = keyChainService.getCaCertificates(alias);
+            // If the keypair is installed with a certificate chain by either
+            // DevicePolicyManager.installKeyPair or CertInstaller, return that chain.
+            if (certChainBytes != null && certChainBytes.length != 0) {
+                Collection<X509Certificate> chain = toCertificates(certChainBytes);
+                ArrayList<X509Certificate> fullChain = new ArrayList<>(chain.size() + 1);
+                fullChain.add(leafCert);
+                fullChain.addAll(chain);
+                return fullChain.toArray(new X509Certificate[fullChain.size()]);
+            } else {
+                // If there isn't a certificate chain, either due to a pre-existing keypair
+                // installed before N, or no chain is explicitly installed under the new logic,
+                // fall back to old behavior of constructing the chain from trusted credentials.
+                //
+                // This logic exists to maintain old behaviour for already installed keypair, at
+                // the cost of potentially returning extra certificate chain for new clients who
+                // explicitly installed only the client certificate without a chain. The latter
+                // case is actually no different from pre-N behaviour of getCertificateChain(),
+                // in that sense this change introduces no regression. Besides the returned chain
+                // is still valid so the consumer of the chain should have no problem verifying it.
+                TrustedCertificateStore store = new TrustedCertificateStore();
+                List<X509Certificate> chain = store.getCertificateChain(leafCert);
+                return chain.toArray(new X509Certificate[chain.size()]);
+            }
         } catch (CertificateException e) {
             throw new KeyChainException(e);
         } catch (RemoteException e) {
@@ -486,6 +513,21 @@
         }
     }
 
+    /** @hide */
+    @NonNull
+    public static Collection<X509Certificate> toCertificates(@NonNull byte[] bytes) {
+        if (bytes == null) {
+            throw new IllegalArgumentException("bytes == null");
+        }
+        try {
+            CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
+            return (Collection<X509Certificate>) certFactory.generateCertificates(
+                    new ByteArrayInputStream(bytes));
+        } catch (CertificateException e) {
+            throw new AssertionError(e);
+        }
+    }
+
     /**
      * @hide for reuse by CertInstaller and Settings.
      * @see KeyChain#bind
diff --git a/libs/androidfw/ResourceTypes.cpp b/libs/androidfw/ResourceTypes.cpp
index 52fe973..1ccc59a 100644
--- a/libs/androidfw/ResourceTypes.cpp
+++ b/libs/androidfw/ResourceTypes.cpp
@@ -3935,7 +3935,9 @@
         if (Res_GETPACKAGE(resID)+1 == 0) {
             ALOGW("No package identifier when getting name for resource number 0x%08x", resID);
         } else {
+#ifndef STATIC_ANDROIDFW_FOR_TOOLS
             ALOGW("No known package when getting name for resource number 0x%08x", resID);
+#endif
         }
         return false;
     }
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 01f9cde..1f17851 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -322,6 +322,7 @@
     $(hwui_test_common_src_files) \
     tests/microbench/main.cpp \
     tests/microbench/DisplayListCanvasBench.cpp \
+    tests/microbench/FontBench.cpp \
     tests/microbench/LinearAllocatorBench.cpp \
     tests/microbench/PathParserBench.cpp \
     tests/microbench/ShadowBench.cpp \
diff --git a/libs/hwui/BakedOpState.cpp b/libs/hwui/BakedOpState.cpp
index 85903654..b70d586 100644
--- a/libs/hwui/BakedOpState.cpp
+++ b/libs/hwui/BakedOpState.cpp
@@ -108,5 +108,63 @@
     clippedBounds.doIntersect(clipRect->rect);
 }
 
+BakedOpState* BakedOpState::tryConstruct(LinearAllocator& allocator,
+        Snapshot& snapshot, const RecordedOp& recordedOp) {
+    if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
+    BakedOpState* bakedState = allocator.create_trivial<BakedOpState>(
+            allocator, snapshot, recordedOp, false);
+    if (bakedState->computedState.clippedBounds.isEmpty()) {
+        // bounds are empty, so op is rejected
+        allocator.rewindIfLastAlloc(bakedState);
+        return nullptr;
+    }
+    return bakedState;
+}
+
+BakedOpState* BakedOpState::tryConstructUnbounded(LinearAllocator& allocator,
+        Snapshot& snapshot, const RecordedOp& recordedOp) {
+    if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
+    return allocator.create_trivial<BakedOpState>(allocator, snapshot, recordedOp);
+}
+
+BakedOpState* BakedOpState::tryStrokeableOpConstruct(LinearAllocator& allocator,
+        Snapshot& snapshot, const RecordedOp& recordedOp, StrokeBehavior strokeBehavior) {
+    if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
+    bool expandForStroke = (strokeBehavior == StrokeBehavior::StyleDefined)
+            ? (recordedOp.paint && recordedOp.paint->getStyle() != SkPaint::kFill_Style)
+            : true;
+
+    BakedOpState* bakedState = allocator.create_trivial<BakedOpState>(
+           allocator, snapshot, recordedOp, expandForStroke);
+    if (bakedState->computedState.clippedBounds.isEmpty()) {
+        // bounds are empty, so op is rejected
+        // NOTE: this won't succeed if a clip was allocated
+        allocator.rewindIfLastAlloc(bakedState);
+        return nullptr;
+    }
+    return bakedState;
+}
+
+BakedOpState* BakedOpState::tryShadowOpConstruct(LinearAllocator& allocator,
+        Snapshot& snapshot, const ShadowOp* shadowOpPtr) {
+    if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
+
+    // clip isn't empty, so construct the op
+    return allocator.create_trivial<BakedOpState>(allocator, snapshot, shadowOpPtr);
+}
+
+BakedOpState* BakedOpState::directConstruct(LinearAllocator& allocator,
+        const ClipRect* clip, const Rect& dstRect, const RecordedOp& recordedOp) {
+    return allocator.create_trivial<BakedOpState>(clip, dstRect, recordedOp);
+}
+
+void BakedOpState::setupOpacity(const SkPaint* paint) {
+    computedState.opaqueOverClippedBounds = computedState.transform.isSimple()
+            && computedState.clipState->mode == ClipMode::Rectangle
+            && MathUtils::areEqual(alpha, 1.0f)
+            && !roundRectClipState
+            && PaintUtils::isOpaquePaint(paint);
+}
+
 } // namespace uirenderer
 } // namespace android
diff --git a/libs/hwui/BakedOpState.h b/libs/hwui/BakedOpState.h
index 4e3cb8a..e1441fc 100644
--- a/libs/hwui/BakedOpState.h
+++ b/libs/hwui/BakedOpState.h
@@ -93,6 +93,7 @@
     Rect clippedBounds;
     int clipSideFlags = 0;
     const SkPath* localProjectionPathMask = nullptr;
+    bool opaqueOverClippedBounds = false;
 };
 
 /**
@@ -103,23 +104,10 @@
 class BakedOpState {
 public:
     static BakedOpState* tryConstruct(LinearAllocator& allocator,
-            Snapshot& snapshot, const RecordedOp& recordedOp) {
-        if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
-        BakedOpState* bakedState = allocator.create_trivial<BakedOpState>(
-                allocator, snapshot, recordedOp, false);
-        if (bakedState->computedState.clippedBounds.isEmpty()) {
-            // bounds are empty, so op is rejected
-            allocator.rewindIfLastAlloc(bakedState);
-            return nullptr;
-        }
-        return bakedState;
-    }
+            Snapshot& snapshot, const RecordedOp& recordedOp);
 
     static BakedOpState* tryConstructUnbounded(LinearAllocator& allocator,
-            Snapshot& snapshot, const RecordedOp& recordedOp) {
-        if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
-        return allocator.create_trivial<BakedOpState>(allocator, snapshot, recordedOp);
-    }
+            Snapshot& snapshot, const RecordedOp& recordedOp);
 
     enum class StrokeBehavior {
         // stroking is forced, regardless of style on paint (such as for lines)
@@ -129,35 +117,16 @@
     };
 
     static BakedOpState* tryStrokeableOpConstruct(LinearAllocator& allocator,
-            Snapshot& snapshot, const RecordedOp& recordedOp, StrokeBehavior strokeBehavior) {
-        if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
-        bool expandForStroke = (strokeBehavior == StrokeBehavior::StyleDefined)
-                ? (recordedOp.paint && recordedOp.paint->getStyle() != SkPaint::kFill_Style)
-                : true;
-
-        BakedOpState* bakedState = allocator.create_trivial<BakedOpState>(
-                allocator, snapshot, recordedOp, expandForStroke);
-        if (bakedState->computedState.clippedBounds.isEmpty()) {
-            // bounds are empty, so op is rejected
-            // NOTE: this won't succeed if a clip was allocated
-            allocator.rewindIfLastAlloc(bakedState);
-            return nullptr;
-        }
-        return bakedState;
-    }
+            Snapshot& snapshot, const RecordedOp& recordedOp, StrokeBehavior strokeBehavior);
 
     static BakedOpState* tryShadowOpConstruct(LinearAllocator& allocator,
-            Snapshot& snapshot, const ShadowOp* shadowOpPtr) {
-        if (CC_UNLIKELY(snapshot.getRenderTargetClip().isEmpty())) return nullptr;
-
-        // clip isn't empty, so construct the op
-        return allocator.create_trivial<BakedOpState>(allocator, snapshot, shadowOpPtr);
-    }
+            Snapshot& snapshot, const ShadowOp* shadowOpPtr);
 
     static BakedOpState* directConstruct(LinearAllocator& allocator,
-            const ClipRect* clip, const Rect& dstRect, const RecordedOp& recordedOp) {
-        return allocator.create_trivial<BakedOpState>(clip, dstRect, recordedOp);
-    }
+            const ClipRect* clip, const Rect& dstRect, const RecordedOp& recordedOp);
+
+    // Set opaqueOverClippedBounds. If this method isn't called, the op is assumed translucent.
+    void setupOpacity(const SkPaint* paint);
 
     // computed state:
     ResolvedRenderState computedState;
diff --git a/libs/hwui/FrameBuilder.cpp b/libs/hwui/FrameBuilder.cpp
index b1314fe..9c46c00 100644
--- a/libs/hwui/FrameBuilder.cpp
+++ b/libs/hwui/FrameBuilder.cpp
@@ -37,7 +37,8 @@
         const LightGeometry& lightGeometry, const Rect &contentDrawBounds, Caches& caches)
         : mCanvasState(*this)
         , mCaches(caches)
-        , mLightRadius(lightGeometry.radius) {
+        , mLightRadius(lightGeometry.radius)
+        , mDrawFbo0(!nodes.empty()) {
     ATRACE_NAME("prepare drawing commands");
 
     mLayerBuilders.reserve(layers.entries().size());
@@ -481,12 +482,17 @@
  * Defers an unmergeable, strokeable op, accounting correctly
  * for paint's style on the bounds being computed.
  */
-const BakedOpState* FrameBuilder::deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
+BakedOpState* FrameBuilder::deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
         BakedOpState::StrokeBehavior strokeBehavior) {
     // Note: here we account for stroke when baking the op
     BakedOpState* bakedState = BakedOpState::tryStrokeableOpConstruct(
             mAllocator, *mCanvasState.writableSnapshot(), op, strokeBehavior);
     if (!bakedState) return nullptr; // quick rejected
+
+    if (op.opId == RecordedOpId::RectOp && op.paint->getStyle() != SkPaint::kStroke_Style) {
+        bakedState->setupOpacity(op.paint);
+    }
+
     currentLayer().deferUnmergeableOp(mAllocator, bakedState, batchId);
     return bakedState;
 }
@@ -516,6 +522,7 @@
 void FrameBuilder::deferBitmapOp(const BitmapOp& op) {
     BakedOpState* bakedState = tryBakeOpState(op);
     if (!bakedState) return; // quick rejected
+    bakedState->setupOpacity(op.paint);
 
     // Don't merge non-simply transformed or neg scale ops, SET_TEXTURE doesn't handle rotation
     // Don't merge A8 bitmaps - the paint's color isn't compared by mergeId, or in
diff --git a/libs/hwui/FrameBuilder.h b/libs/hwui/FrameBuilder.h
index 0b7a606..e418227 100644
--- a/libs/hwui/FrameBuilder.h
+++ b/libs/hwui/FrameBuilder.h
@@ -137,12 +137,14 @@
         }
 
         GL_CHECKPOINT(MODERATE);
-        const LayerBuilder& fbo0 = *(mLayerBuilders[0]);
-        renderer.startFrame(fbo0.width, fbo0.height, fbo0.repaintRect);
-        GL_CHECKPOINT(MODERATE);
-        fbo0.replayBakedOpsImpl((void*)&renderer, unmergedReceivers, mergedReceivers);
-        GL_CHECKPOINT(MODERATE);
-        renderer.endFrame(fbo0.repaintRect);
+        if (CC_LIKELY(mDrawFbo0)) {
+            const LayerBuilder& fbo0 = *(mLayerBuilders[0]);
+            renderer.startFrame(fbo0.width, fbo0.height, fbo0.repaintRect);
+            GL_CHECKPOINT(MODERATE);
+            fbo0.replayBakedOpsImpl((void*)&renderer, unmergedReceivers, mergedReceivers);
+            GL_CHECKPOINT(MODERATE);
+            renderer.endFrame(fbo0.repaintRect);
+        }
     }
 
     void dump() const {
@@ -201,7 +203,7 @@
         return mAllocator.create<SkPath>();
     }
 
-    const BakedOpState* deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
+    BakedOpState* deferStrokeableOp(const RecordedOp& op, batchid_t batchId,
             BakedOpState::StrokeBehavior strokeBehavior = BakedOpState::StrokeBehavior::StyleDefined);
 
     /**
@@ -239,6 +241,8 @@
 
     // contains single-frame objects, such as BakedOpStates, LayerBuilders, Batches
     LinearAllocator mAllocator;
+
+    const bool mDrawFbo0;
 };
 
 }; // namespace uirenderer
diff --git a/libs/hwui/JankTracker.cpp b/libs/hwui/JankTracker.cpp
index 76e587e..47d0108 100644
--- a/libs/hwui/JankTracker.cpp
+++ b/libs/hwui/JankTracker.cpp
@@ -15,6 +15,8 @@
  */
 #include "JankTracker.h"
 
+#include "Properties.h"
+
 #include <algorithm>
 #include <cutils/ashmem.h>
 #include <cutils/log.h>
@@ -77,6 +79,11 @@
 // If a frame is > this, start counting in increments of 4ms
 static const uint32_t kBucket4msIntervals = 48;
 
+// For testing purposes to try and eliminate test infra overhead we will
+// consider any unknown delay of frame start as part of the test infrastructure
+// and filter it out of the frame profile data
+static FrameInfoIndex sFrameStart = FrameInfoIndex::IntendedVsync;
+
 // This will be called every frame, performance sensitive
 // Uses bit twiddling to avoid branching while achieving the packing desired
 static uint32_t frameCountIndexForFrameTime(nsecs_t frameTime, uint32_t max) {
@@ -242,7 +249,7 @@
     mData->totalFrameCount++;
     // Fast-path for jank-free frames
     int64_t totalDuration =
-            frame[FrameInfoIndex::FrameCompleted] - frame[FrameInfoIndex::IntendedVsync];
+            frame[FrameInfoIndex::FrameCompleted] - frame[sFrameStart];
     uint32_t framebucket = frameCountIndexForFrameTime(
             totalDuration, mData->frameCounts.size() - 1);
     // Keep the fast path as fast as possible.
@@ -280,6 +287,9 @@
 }
 
 void JankTracker::dumpData(const ProfileData* data, int fd) {
+    if (sFrameStart != FrameInfoIndex::IntendedVsync) {
+        dprintf(fd, "\nNote: Data has been filtered!");
+    }
     dprintf(fd, "\nStats since: %" PRIu64 "ns", data->statStartTime);
     dprintf(fd, "\nTotal frames rendered: %u", data->totalFrameCount);
     dprintf(fd, "\nJanky frames: %u (%.2f%%)", data->jankFrameCount,
@@ -305,6 +315,9 @@
     mData->totalFrameCount = 0;
     mData->jankFrameCount = 0;
     mData->statStartTime = systemTime(CLOCK_MONOTONIC);
+    sFrameStart = Properties::filterOutTestOverhead
+            ? FrameInfoIndex::HandleInputStart
+            : FrameInfoIndex::IntendedVsync;
 }
 
 uint32_t JankTracker::findPercentile(const ProfileData* data, int percentile) {
diff --git a/libs/hwui/LayerBuilder.cpp b/libs/hwui/LayerBuilder.cpp
index e6a95ff..eea11bf 100644
--- a/libs/hwui/LayerBuilder.cpp
+++ b/libs/hwui/LayerBuilder.cpp
@@ -236,6 +236,21 @@
     mClearRects.push_back(rect);
 }
 
+void LayerBuilder::onDeferOp(LinearAllocator& allocator, const BakedOpState* bakedState) {
+    if (bakedState->op->opId != RecordedOpId::CopyToLayerOp) {
+        // First non-CopyToLayer, so stop stashing up layer clears for unclipped save layers,
+        // and issue them together in one draw.
+        flushLayerClears(allocator);
+
+        if (CC_UNLIKELY(activeUnclippedSaveLayers.empty()
+                && bakedState->computedState.opaqueOverClippedBounds
+                && bakedState->computedState.clippedBounds.contains(repaintRect))) {
+            // discard all deferred drawing ops, since new one will occlude them
+            clear();
+        }
+    }
+}
+
 void LayerBuilder::flushLayerClears(LinearAllocator& allocator) {
     if (CC_UNLIKELY(!mClearRects.empty())) {
         const int vertCount = mClearRects.size() * 4;
@@ -270,11 +285,7 @@
 
 void LayerBuilder::deferUnmergeableOp(LinearAllocator& allocator,
         BakedOpState* op, batchid_t batchId) {
-    if (batchId != OpBatchType::CopyToLayer) {
-        // if first op after one or more unclipped saveLayers, flush the layer clears
-        flushLayerClears(allocator);
-    }
-
+    onDeferOp(allocator, op);
     OpBatch* targetBatch = mBatchLookup[batchId];
 
     size_t insertBatchIndex = mBatches.size();
@@ -295,10 +306,7 @@
 
 void LayerBuilder::deferMergeableOp(LinearAllocator& allocator,
         BakedOpState* op, batchid_t batchId, mergeid_t mergeId) {
-    if (batchId != OpBatchType::CopyToLayer) {
-        // if first op after one or more unclipped saveLayers, flush the layer clears
-        flushLayerClears(allocator);
-    }
+    onDeferOp(allocator, op);
     MergingOpBatch* targetBatch = nullptr;
 
     // Try to merge with any existing batch with same mergeId
@@ -348,6 +356,14 @@
     }
 }
 
+void LayerBuilder::clear() {
+    mBatches.clear();
+    for (int i = 0; i < OpBatchType::Count; i++) {
+        mBatchLookup[i] = nullptr;
+        mMergingBatchLookup[i].clear();
+    }
+}
+
 void LayerBuilder::dump() const {
     ALOGD("LayerBuilder %p, %ux%u buffer %p, blo %p, rn %p (%s)",
             this, width, height, offscreenBuffer, beginLayerOp,
diff --git a/libs/hwui/LayerBuilder.h b/libs/hwui/LayerBuilder.h
index 4a7ca2d..4de432c 100644
--- a/libs/hwui/LayerBuilder.h
+++ b/libs/hwui/LayerBuilder.h
@@ -100,9 +100,7 @@
         return mBatches.empty();
     }
 
-    void clear() {
-        mBatches.clear();
-    }
+    void clear();
 
     void dump() const;
 
@@ -117,6 +115,7 @@
     // list of deferred CopyFromLayer ops, to be deferred upon encountering EndUnclippedLayerOps
     std::vector<BakedOpState*> activeUnclippedSaveLayers;
 private:
+    void onDeferOp(LinearAllocator& allocator, const BakedOpState* bakedState);
     void flushLayerClears(LinearAllocator& allocator);
 
     std::vector<BatchBase*> mBatches;
diff --git a/libs/hwui/Properties.cpp b/libs/hwui/Properties.cpp
index bbd8c72..6f68c2b 100644
--- a/libs/hwui/Properties.cpp
+++ b/libs/hwui/Properties.cpp
@@ -66,6 +66,8 @@
 
 bool Properties::waitForGpuCompletion = false;
 
+bool Properties::filterOutTestOverhead = false;
+
 static int property_get_int(const char* key, int defaultValue) {
     char buf[PROPERTY_VALUE_MAX] = {'\0',};
 
@@ -156,6 +158,8 @@
     textureCacheFlushRate = std::max(0.0f, std::min(1.0f,
             property_get_float(PROPERTY_TEXTURE_CACHE_FLUSH_RATE, DEFAULT_TEXTURE_CACHE_FLUSH_RATE)));
 
+    filterOutTestOverhead = property_get_bool(PROPERTY_FILTER_TEST_OVERHEAD, false);
+
     return (prevDebugLayersUpdates != debugLayersUpdates)
             || (prevDebugOverdraw != debugOverdraw)
             || (prevDebugStencilClip != debugStencilClip);
diff --git a/libs/hwui/Properties.h b/libs/hwui/Properties.h
index 249b5b0..171873d 100644
--- a/libs/hwui/Properties.h
+++ b/libs/hwui/Properties.h
@@ -151,6 +151,8 @@
  */
 #define PROPERTY_ENABLE_PARTIAL_UPDATES "debug.hwui.enable_partial_updates"
 
+#define PROPERTY_FILTER_TEST_OVERHEAD "debug.hwui.filter_test_overhead"
+
 ///////////////////////////////////////////////////////////////////////////////
 // Runtime configuration properties
 ///////////////////////////////////////////////////////////////////////////////
@@ -294,6 +296,10 @@
     // Should be used only by test apps
     static bool waitForGpuCompletion;
 
+    // Should only be set by automated tests to try and filter out
+    // any overhead they add
+    static bool filterOutTestOverhead;
+
 private:
     static ProfileType sProfileType;
     static bool sDisableProfileBars;
diff --git a/libs/hwui/font/Font.cpp b/libs/hwui/font/Font.cpp
index 9a825fd..8e04c87 100644
--- a/libs/hwui/font/Font.cpp
+++ b/libs/hwui/font/Font.cpp
@@ -356,8 +356,6 @@
 }
 
 void Font::precache(const SkPaint* paint, const glyph_t* glyphs, int numGlyphs) {
-    ATRACE_NAME("Precache Glyphs");
-
     if (numGlyphs == 0 || glyphs == nullptr) {
         return;
     }
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index eee5278..6933b2f 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -86,10 +86,12 @@
     freePrefetechedLayers();
     destroyHardwareResources();
     mAnimationContext->destroy();
+#if !HWUI_NEW_OPS
     if (mCanvas) {
         delete mCanvas;
         mCanvas = nullptr;
     }
+#endif
 }
 
 void CanvasContext::setSurface(Surface* surface) {
@@ -587,9 +589,11 @@
 
 void CanvasContext::buildLayer(RenderNode* node) {
     ATRACE_CALL();
-    if (!mEglManager.hasEglContext() || !mCanvas) {
-        return;
-    }
+    if (!mEglManager.hasEglContext()) return;
+#if !HWUI_NEW_OPS
+    if (!mCanvas) return;
+#endif
+
     // buildLayer() will leave the tree in an unknown state, so we must stop drawing
     stopDrawing();
 
@@ -609,7 +613,15 @@
     node->setPropertyFieldsDirty(RenderNode::GENERIC);
 
 #if HWUI_NEW_OPS
-    // TODO: support buildLayer
+    static const std::vector< sp<RenderNode> > emptyNodeList;
+    auto& caches = Caches::getInstance();
+    FrameBuilder frameBuilder(mLayerUpdateQueue, SkRect::MakeWH(1, 1), 1, 1,
+            emptyNodeList, mLightGeometry, mContentDrawBounds, caches);
+    mLayerUpdateQueue.clear();
+    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
+            mOpaque, mLightInfo);
+    LOG_ALWAYS_FATAL_IF(renderer.didDraw(), "shouldn't draw in buildlayer case");
+    frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
 #else
     mCanvas->markLayersAsBuildLayers();
     mCanvas->flushLayerUpdates();
diff --git a/libs/hwui/renderthread/CanvasContext.h b/libs/hwui/renderthread/CanvasContext.h
index 6706c30..6d0889e 100644
--- a/libs/hwui/renderthread/CanvasContext.h
+++ b/libs/hwui/renderthread/CanvasContext.h
@@ -196,10 +196,11 @@
     RingBuffer<SwapHistory, 3> mSwapHistory;
 
     bool mOpaque;
-    OpenGLRenderer* mCanvas = nullptr;
 #if HWUI_NEW_OPS
     BakedOpRenderer::LightInfo mLightInfo;
     FrameBuilder::LightGeometry mLightGeometry = { {0, 0, 0}, 0 };
+#else
+    OpenGLRenderer* mCanvas = nullptr;
 #endif
 
     bool mHaveNewSurface = false;
diff --git a/libs/hwui/tests/microbench/FontBench.cpp b/libs/hwui/tests/microbench/FontBench.cpp
new file mode 100644
index 0000000..df3d041
--- /dev/null
+++ b/libs/hwui/tests/microbench/FontBench.cpp
@@ -0,0 +1,50 @@
+/*
+ * 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.
+ */
+
+#include <benchmark/benchmark.h>
+
+#include "GammaFontRenderer.h"
+#include "tests/common/TestUtils.h"
+
+#include <SkPaint.h>
+
+using namespace android;
+using namespace android::uirenderer;
+
+void BM_FontRenderer_precache_cachehits(benchmark::State& state) {
+    TestUtils::runOnRenderThread([&state](renderthread::RenderThread& thread) {
+        SkPaint paint;
+        paint.setTextSize(20);
+        paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
+        GammaFontRenderer gammaFontRenderer;
+        FontRenderer& fontRenderer = gammaFontRenderer.getFontRenderer();
+        fontRenderer.setFont(&paint, SkMatrix::I());
+
+        std::vector<glyph_t> glyphs;
+        std::vector<float> positions;
+        float totalAdvance;
+        uirenderer::Rect bounds;
+        TestUtils::layoutTextUnscaled(paint, "This is a test",
+                &glyphs, &positions, &totalAdvance, &bounds);
+
+        fontRenderer.precache(&paint, glyphs.data(), glyphs.size(), SkMatrix::I());
+
+        while (state.KeepRunning()) {
+            fontRenderer.precache(&paint, glyphs.data(), glyphs.size(), SkMatrix::I());
+        }
+    });
+}
+BENCHMARK(BM_FontRenderer_precache_cachehits);
diff --git a/libs/hwui/tests/microbench/FrameBuilderBench.cpp b/libs/hwui/tests/microbench/FrameBuilderBench.cpp
index 9daf633..0aef620 100644
--- a/libs/hwui/tests/microbench/FrameBuilderBench.cpp
+++ b/libs/hwui/tests/microbench/FrameBuilderBench.cpp
@@ -113,15 +113,17 @@
 };
 
 void BM_FrameBuilder_defer_scene(benchmark::State& state) {
-    const char* sceneName = *(SCENES.begin() + state.range_x());
-    state.SetLabel(sceneName);
-    auto nodes = getSyncedSceneNodes(sceneName);
-    while (state.KeepRunning()) {
-        FrameBuilder frameBuilder(sEmptyLayerUpdateQueue,
-                SkRect::MakeWH(gDisplay.w, gDisplay.h), gDisplay.w, gDisplay.h,
-                nodes, sLightGeometry, Caches::getInstance());
-        benchmark::DoNotOptimize(&frameBuilder);
-    }
+    TestUtils::runOnRenderThread([&state](RenderThread& thread) {
+        const char* sceneName = *(SCENES.begin() + state.range_x());
+        state.SetLabel(sceneName);
+        auto nodes = getSyncedSceneNodes(sceneName);
+        while (state.KeepRunning()) {
+            FrameBuilder frameBuilder(sEmptyLayerUpdateQueue,
+                    SkRect::MakeWH(gDisplay.w, gDisplay.h), gDisplay.w, gDisplay.h,
+                    nodes, sLightGeometry, Caches::getInstance());
+            benchmark::DoNotOptimize(&frameBuilder);
+        }
+    });
 }
 BENCHMARK(BM_FrameBuilder_defer_scene)->DenseRange(0, SCENES.size() - 1);
 
diff --git a/libs/hwui/tests/unit/FrameBuilderTests.cpp b/libs/hwui/tests/unit/FrameBuilderTests.cpp
index e97aaa6..7dfafb9 100644
--- a/libs/hwui/tests/unit/FrameBuilderTests.cpp
+++ b/libs/hwui/tests/unit/FrameBuilderTests.cpp
@@ -30,6 +30,7 @@
 namespace uirenderer {
 
 const LayerUpdateQueue sEmptyLayerUpdateQueue;
+const std::vector< sp<RenderNode> > sEmptyNodeList;
 const FrameBuilder::LightGeometry sLightGeometry = { {100, 100, 100}, 50};
 
 
@@ -216,6 +217,123 @@
             << "Expect number of ops = 2 * loop count";
 }
 
+RENDERTHREAD_TEST(FrameBuilder, empty_noFbo0) {
+    class EmptyNoFbo0TestRenderer : public TestRendererBase {
+    public:
+        void startFrame(uint32_t width, uint32_t height, const Rect& repaintRect) override {
+            ADD_FAILURE() << "Primary frame draw not expected in this test";
+        }
+        void endFrame(const Rect& repaintRect) override {
+            ADD_FAILURE() << "Primary frame draw not expected in this test";
+        }
+    };
+
+    // Pass empty node list, so no work is enqueued for Fbo0
+    FrameBuilder frameBuilder(sEmptyLayerUpdateQueue, SkRect::MakeWH(200, 200), 200, 200,
+            sEmptyNodeList, sLightGeometry, Caches::getInstance());
+    EmptyNoFbo0TestRenderer renderer;
+    frameBuilder.replayBakedOps<TestDispatcher>(renderer);
+}
+
+RENDERTHREAD_TEST(FrameBuilder, empty_withFbo0) {
+    class EmptyWithFbo0TestRenderer : public TestRendererBase {
+    public:
+        void startFrame(uint32_t width, uint32_t height, const Rect& repaintRect) override {
+            EXPECT_EQ(0, mIndex++);
+        }
+        void endFrame(const Rect& repaintRect) override {
+            EXPECT_EQ(1, mIndex++);
+        }
+    };
+    auto node = TestUtils::createNode(10, 10, 110, 110,
+            [](RenderProperties& props, RecordingCanvas& canvas) {
+        // no drawn content
+    });
+    auto syncedNodeList = TestUtils::createSyncedNodeList(node);
+
+    // Draw, but pass empty node list, so no work is done for primary frame
+    FrameBuilder frameBuilder(sEmptyLayerUpdateQueue, SkRect::MakeWH(200, 200), 200, 200,
+            syncedNodeList, sLightGeometry, Caches::getInstance());
+    EmptyWithFbo0TestRenderer renderer;
+    frameBuilder.replayBakedOps<TestDispatcher>(renderer);
+    EXPECT_EQ(2, renderer.getIndex()) << "No drawing content produced,"
+            " but fbo0 update lifecycle should still be observed";
+}
+
+RENDERTHREAD_TEST(FrameBuilder, avoidOverdraw_rects) {
+    class AvoidOverdrawRectsTestRenderer : public TestRendererBase {
+    public:
+        void onRectOp(const RectOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(mIndex++, 0) << "Should be one rect";
+            EXPECT_EQ(Rect(10, 10, 190, 190), op.unmappedBounds)
+                    << "Last rect should occlude others.";
+        }
+    };
+    auto node = TestUtils::createNode(0, 0, 200, 200,
+            [](RenderProperties& props, RecordingCanvas& canvas) {
+        canvas.drawRect(0, 0, 200, 200, SkPaint());
+        canvas.drawRect(0, 0, 200, 200, SkPaint());
+        canvas.drawRect(10, 10, 190, 190, SkPaint());
+    });
+
+    // Damage (and therefore clip) is same as last draw, subset of renderable area.
+    // This means last op occludes other contents, and they'll be rejected to avoid overdraw.
+    SkRect damageRect = SkRect::MakeLTRB(10, 10, 190, 190);
+    FrameBuilder frameBuilder(sEmptyLayerUpdateQueue, damageRect, 200, 200,
+            TestUtils::createSyncedNodeList(node), sLightGeometry, Caches::getInstance());
+
+    EXPECT_EQ(3u, node->getDisplayList()->getOps().size())
+            << "Recording must not have rejected ops, in order for this test to be valid";
+
+    AvoidOverdrawRectsTestRenderer renderer;
+    frameBuilder.replayBakedOps<TestDispatcher>(renderer);
+    EXPECT_EQ(1, renderer.getIndex()) << "Expect exactly one op";
+}
+
+RENDERTHREAD_TEST(FrameBuilder, avoidOverdraw_bitmaps) {
+    static SkBitmap opaqueBitmap = TestUtils::createSkBitmap(50, 50,
+            SkColorType::kRGB_565_SkColorType);
+    static SkBitmap transpBitmap = TestUtils::createSkBitmap(50, 50,
+            SkColorType::kAlpha_8_SkColorType);
+    class AvoidOverdrawBitmapsTestRenderer : public TestRendererBase {
+    public:
+        void onBitmapOp(const BitmapOp& op, const BakedOpState& state) override {
+            EXPECT_LT(mIndex++, 2) << "Should be two bitmaps";
+            switch(mIndex++) {
+            case 0:
+                EXPECT_EQ(opaqueBitmap.pixelRef(), op.bitmap->pixelRef());
+                break;
+            case 1:
+                EXPECT_EQ(transpBitmap.pixelRef(), op.bitmap->pixelRef());
+                break;
+            default:
+                ADD_FAILURE() << "Only two ops expected.";
+            }
+        }
+    };
+
+    auto node = TestUtils::createNode(0, 0, 50, 50,
+            [](RenderProperties& props, RecordingCanvas& canvas) {
+        canvas.drawRect(0, 0, 50, 50, SkPaint());
+        canvas.drawRect(0, 0, 50, 50, SkPaint());
+        canvas.drawBitmap(transpBitmap, 0, 0, nullptr);
+
+        // only the below draws should remain, since they're
+        canvas.drawBitmap(opaqueBitmap, 0, 0, nullptr);
+        canvas.drawBitmap(transpBitmap, 0, 0, nullptr);
+    });
+
+    FrameBuilder frameBuilder(sEmptyLayerUpdateQueue, SkRect::MakeWH(50, 50), 50, 50,
+            TestUtils::createSyncedNodeList(node), sLightGeometry, Caches::getInstance());
+
+    EXPECT_EQ(5u, node->getDisplayList()->getOps().size())
+            << "Recording must not have rejected ops, in order for this test to be valid";
+
+    AvoidOverdrawBitmapsTestRenderer renderer;
+    frameBuilder.replayBakedOps<TestDispatcher>(renderer);
+    EXPECT_EQ(2, renderer.getIndex()) << "Expect exactly one op";
+}
+
 RENDERTHREAD_TEST(FrameBuilder, clippedMerging) {
     class ClippedMergingTestRenderer : public TestRendererBase {
     public:
@@ -1078,6 +1196,64 @@
     *(parent->getLayerHandle()) = nullptr;
 }
 
+
+RENDERTHREAD_TEST(FrameBuilder, buildLayer) {
+    class BuildLayerTestRenderer : public TestRendererBase {
+    public:
+        void startRepaintLayer(OffscreenBuffer* offscreenBuffer, const Rect& repaintRect) override {
+            EXPECT_EQ(0, mIndex++);
+            EXPECT_EQ(100u, offscreenBuffer->viewportWidth);
+            EXPECT_EQ(100u, offscreenBuffer->viewportHeight);
+            EXPECT_EQ(Rect(25, 25, 75, 75), repaintRect);
+        }
+        void onColorOp(const ColorOp& op, const BakedOpState& state) override {
+            EXPECT_EQ(1, mIndex++);
+
+            EXPECT_TRUE(state.computedState.transform.isIdentity())
+                    << "Transform should be reset within layer";
+
+            EXPECT_EQ(Rect(25, 25, 75, 75), state.computedState.clipRect())
+                    << "Damage rect should be used to clip layer content";
+        }
+        void endLayer() override {
+            EXPECT_EQ(2, mIndex++);
+        }
+        void startFrame(uint32_t width, uint32_t height, const Rect& repaintRect) override {
+            ADD_FAILURE() << "Primary frame draw not expected in this test";
+        }
+        void endFrame(const Rect& repaintRect) override {
+            ADD_FAILURE() << "Primary frame draw not expected in this test";
+        }
+    };
+
+    auto node = TestUtils::createNode(10, 10, 110, 110,
+            [](RenderProperties& props, RecordingCanvas& canvas) {
+        props.mutateLayerProperties().setType(LayerType::RenderLayer);
+        canvas.drawColor(SK_ColorWHITE, SkXfermode::Mode::kSrcOver_Mode);
+    });
+    OffscreenBuffer** layerHandle = node->getLayerHandle();
+
+    // create RenderNode's layer here in same way prepareTree would
+    OffscreenBuffer layer(renderThread.renderState(), Caches::getInstance(), 100, 100);
+    *layerHandle = &layer;
+
+    auto syncedNodeList = TestUtils::createSyncedNodeList(node);
+
+    // only enqueue partial damage
+    LayerUpdateQueue layerUpdateQueue; // Note: enqueue damage post-sync, so bounds are valid
+    layerUpdateQueue.enqueueLayerWithDamage(node.get(), Rect(25, 25, 75, 75));
+
+    // Draw, but pass empty node list, so no work is done for primary frame
+    FrameBuilder frameBuilder(layerUpdateQueue, SkRect::MakeWH(1, 1), 1, 1,
+            sEmptyNodeList, sLightGeometry, Caches::getInstance());
+    BuildLayerTestRenderer renderer;
+    frameBuilder.replayBakedOps<TestDispatcher>(renderer);
+    EXPECT_EQ(3, renderer.getIndex());
+
+    // clean up layer pointer, so we can safely destruct RenderNode
+    *layerHandle = nullptr;
+}
+
 static void drawOrderedRect(RecordingCanvas* canvas, uint8_t expectedDrawOrder) {
     SkPaint paint;
     paint.setColor(SkColorSetARGB(256, 0, 0, expectedDrawOrder)); // order put in blue channel
diff --git a/libs/hwui/utils/PaintUtils.h b/libs/hwui/utils/PaintUtils.h
index db53713..4faab9a 100644
--- a/libs/hwui/utils/PaintUtils.h
+++ b/libs/hwui/utils/PaintUtils.h
@@ -67,6 +67,21 @@
                 && getXfermode(paint.getXfermode()) == SkXfermode::kSrcOver_Mode;
     }
 
+    static bool isOpaquePaint(const SkPaint* paint) {
+        if (!paint) return true; // default (paintless) behavior is SrcOver, black
+
+        if (paint->getAlpha() != 0xFF
+                || PaintUtils::isBlendedShader(paint->getShader())
+                || PaintUtils::isBlendedColorFilter(paint->getColorFilter())) {
+            return false;
+        }
+
+        // Only let simple srcOver / src blending modes declare opaque, since behavior is clear.
+        SkXfermode::Mode mode = getXfermode(paint->getXfermode());
+        return mode == SkXfermode::Mode::kSrcOver_Mode
+                || mode == SkXfermode::Mode::kSrc_Mode;
+    }
+
     static bool isBlendedShader(const SkShader* shader) {
         if (shader == nullptr) {
             return false;
diff --git a/location/java/android/location/GnssStatus.java b/location/java/android/location/GnssStatus.java
index 9c509d6..d76feec 100644
--- a/location/java/android/location/GnssStatus.java
+++ b/location/java/android/location/GnssStatus.java
@@ -121,7 +121,7 @@
      * @param satIndex the index of the satellite in the list.
      */
     public float getElevationDegrees(int satIndex) {
-        return 0f;
+        return mElevations[satIndex];
     }
 
     /**
diff --git a/location/java/android/location/INetInitiatedListener.aidl b/location/java/android/location/INetInitiatedListener.aidl
index f2f5a32..fc64dd6 100644
--- a/location/java/android/location/INetInitiatedListener.aidl
+++ b/location/java/android/location/INetInitiatedListener.aidl
@@ -1,26 +1,26 @@
-/*

-**

-** Copyright 2008, The Android Open Source Project

-**

-** Licensed under the Apache License, Version 2.0 (the "License");

-** you may not use this file except in compliance with the License.

-** You may obtain a copy of the License at

-**

-**     http://www.apache.org/licenses/LICENSE-2.0

-**

-** Unless required by applicable law or agreed to in writing, software

-** distributed under the License is distributed on an "AS IS" BASIS,

-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

-** See the License for the specific language governing permissions and

-** limitations under the License.

-*/

-

-package android.location;

-

-/**

- * {@hide}

- */

-interface INetInitiatedListener

-{

-    boolean sendNiResponse(int notifId, int userResponse);

-}

+/*
+**
+** Copyright 2008, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+package android.location;
+
+/**
+ * {@hide}
+ */
+interface INetInitiatedListener
+{
+    boolean sendNiResponse(int notifId, int userResponse);
+}
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index 3c42161..0a8c692 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -2149,7 +2149,7 @@
                                 }
                                 if (listener != null) {
                                     Log.d(TAG, "AudioManager dispatching onAudioFocusChange("
-                                            + msg.what + ") for " + msg.obj);
+                                            + msg.arg1 + ") for " + msg.obj);
                                     listener.onAudioFocusChange(msg.arg1);
                                 }
                                 break;
diff --git a/media/java/android/media/ExifInterface.java b/media/java/android/media/ExifInterface.java
index 4bf0852..cd2d51d 100644
--- a/media/java/android/media/ExifInterface.java
+++ b/media/java/android/media/ExifInterface.java
@@ -693,7 +693,7 @@
      */
     public ExifInterface(FileDescriptor fileDescriptor) throws IOException {
         if (fileDescriptor == null) {
-            throw new IllegalArgumentException("parcelFileDescriptor cannot be null");
+            throw new IllegalArgumentException("fileDescriptor cannot be null");
         }
         mAssetInputStream = null;
         mFilename = null;
@@ -705,7 +705,7 @@
             try {
                 fileDescriptor = Os.dup(fileDescriptor);
             } catch (ErrnoException e) {
-                e.rethrowAsIOException();
+                throw e.rethrowAsIOException();
             }
         } else {
             mSeekableFileDescriptor = null;
@@ -811,6 +811,9 @@
      */
     public void setAttribute(String tag, String value) {
         for (int i = 0 ; i < EXIF_TAGS.length; ++i) {
+            if (i == IFD_THUMBNAIL_HINT && !mHasThumbnail) {
+                continue;
+            }
             if (sExifTagMapsForWriting[i].containsKey(tag)) {
                 mAttributes[i].put(tag, value);
             }
@@ -818,6 +821,35 @@
     }
 
     /**
+     * Update the values of the tags in the tag groups if any value for the tag already was stored.
+     *
+     * @param tag the name of the tag.
+     * @param value the value of the tag.
+     * @return Returns {@code true} if updating is placed.
+     */
+    private boolean updateAttribute(String tag, String value) {
+        boolean updated = false;
+        for (int i = 0 ; i < EXIF_TAGS.length; ++i) {
+            if (mAttributes[i].containsKey(tag)) {
+                mAttributes[i].put(tag, value);
+                updated = true;
+            }
+        }
+        return updated;
+    }
+
+    /**
+     * Remove any values of the specified tag.
+     *
+     * @param tag the name of the tag.
+     */
+    private void removeAttribute(String tag) {
+        for (int i = 0 ; i < EXIF_TAGS.length; ++i) {
+            mAttributes[i].remove(tag);
+        }
+    }
+
+    /**
      * This function decides which parser to read the image data according to the given input stream
      * type and the content of the input stream. In each case, it reads the first three bytes to
      * determine whether the image data format is JPEG or not.
@@ -853,7 +885,7 @@
         } catch (IOException e) {
             // Ignore exceptions in order to keep the compatibility with the old versions of
             // ExifInterface.
-            Log.w(TAG, "Invalid JPEG: ExifInterface got an unsupported image format file"
+            Log.w(TAG, "Invalid image: ExifInterface got an unsupported image format file"
                     + "(ExifInterface supports JPEG and some RAW image formats only) "
                     + "or a corrupted JPEG file to ExifInterface.", e);
         } finally {
@@ -882,27 +914,22 @@
         // Mark for disabling the save feature.
         mIsRaw = true;
 
-        for (Map.Entry entry : (Set<Map.Entry>) map.entrySet()) {
-            String attrName = (String) entry.getKey();
-
-            switch (attrName) {
-                case TAG_HAS_THUMBNAIL:
-                    mHasThumbnail = ((String) entry.getValue()).equalsIgnoreCase("true");
-                    break;
-                case TAG_THUMBNAIL_OFFSET:
-                    mThumbnailOffset = Integer.parseInt((String) entry.getValue());
-                    break;
-                case TAG_THUMBNAIL_LENGTH:
-                    mThumbnailLength = Integer.parseInt((String) entry.getValue());
-                    break;
-                case TAG_THUMBNAIL_DATA:
-                    mThumbnailBytes = (byte[]) entry.getValue();
-                    break;
-                default:
-                    setAttribute(attrName, (String) entry.getValue());
-                    break;
-            }
+        String value = (String) map.remove(TAG_HAS_THUMBNAIL);
+        mHasThumbnail = value != null && value.equalsIgnoreCase("true");
+        value = (String) map.remove(TAG_THUMBNAIL_OFFSET);
+        if (value != null) {
+            mThumbnailOffset = Integer.parseInt(value);
         }
+        value = (String) map.remove(TAG_THUMBNAIL_LENGTH);
+        if (value != null) {
+            mThumbnailLength = Integer.parseInt(value);
+        }
+        mThumbnailBytes = (byte[]) map.remove(TAG_THUMBNAIL_DATA);
+
+        for (Map.Entry entry : (Set<Map.Entry>) map.entrySet()) {
+            setAttribute((String) entry.getKey(), (String) entry.getValue());
+        }
+
         return true;
     }
 
@@ -928,7 +955,7 @@
     /**
      * Save the tag data into the original image file. This is expensive because it involves
      * copying all the data from one file to another and deleting the old file and renaming the
-     * other. It's best to use{@link #setAttribute(String,String)} to set all attributes to write
+     * other. It's best to use {@link #setAttribute(String,String)} to set all attributes to write
      * and make a single call rather than multiple calls for each attribute.
      */
     public void saveAttributes() throws IOException {
@@ -963,7 +990,7 @@
                 Streams.copy(in, out);
             }
         } catch (ErrnoException e) {
-            e.rethrowAsIOException();
+            throw e.rethrowAsIOException();
         } finally {
             IoUtils.closeQuietly(in);
             IoUtils.closeQuietly(out);
@@ -982,7 +1009,7 @@
             }
             saveJpegAttributes(in, out);
         } catch (ErrnoException e) {
-            e.rethrowAsIOException();
+            throw e.rethrowAsIOException();
         } finally {
             IoUtils.closeQuietly(in);
             IoUtils.closeQuietly(out);
@@ -1276,7 +1303,8 @@
                         throw new IOException("Invalid exif");
                     }
                     length = 0;
-                    setAttribute("UserComment", new String(bytes, Charset.forName("US-ASCII")));
+                    mAttributes[IFD_EXIF_HINT].put(TAG_USER_COMMENT,
+                            new String(bytes, Charset.forName("US-ASCII")));
                     break;
                 }
 
@@ -1296,9 +1324,10 @@
                     if (dataInputStream.skipBytes(1) != 1) {
                         throw new IOException("Invalid SOFx");
                     }
-                    setAttribute("ImageLength",
+                    mAttributes[IFD_TIFF_HINT].put(TAG_IMAGE_LENGTH,
                             String.valueOf(dataInputStream.readUnsignedShort()));
-                    setAttribute("ImageWidth", String.valueOf(dataInputStream.readUnsignedShort()));
+                    mAttributes[IFD_TIFF_HINT].put(TAG_IMAGE_WIDTH,
+                            String.valueOf(dataInputStream.readUnsignedShort()));
                     length -= 5;
                     break;
                 }
@@ -1521,31 +1550,31 @@
         convertToInt(TAG_GPS_ALTITUDE_REF);
         convertToRational(TAG_GPS_LONGITUDE);
         convertToRational(TAG_GPS_LATITUDE);
-        convertToTimetamp(TAG_GPS_TIMESTAMP);
+        convertToTimestamp(TAG_GPS_TIMESTAMP);
 
         // The value of DATETIME tag has the same value of DATETIME_ORIGINAL tag.
-        String valueOfDateTimeOriginal = getAttribute("DateTimeOriginal");
+        String valueOfDateTimeOriginal = getAttribute(TAG_DATETIME_ORIGINAL);
         if (valueOfDateTimeOriginal != null) {
-            setAttribute(TAG_DATETIME, valueOfDateTimeOriginal);
+            mAttributes[IFD_TIFF_HINT].put(TAG_DATETIME, valueOfDateTimeOriginal);
         }
 
         // Add the default value.
         if (getAttribute(TAG_IMAGE_WIDTH) == null) {
-            setAttribute(TAG_IMAGE_WIDTH, "0");
+            mAttributes[IFD_TIFF_HINT].put(TAG_IMAGE_WIDTH, "0");
         }
         if (getAttribute(TAG_IMAGE_LENGTH) == null) {
-            setAttribute(TAG_IMAGE_LENGTH, "0");
+            mAttributes[IFD_TIFF_HINT].put(TAG_IMAGE_LENGTH, "0");
         }
         if (getAttribute(TAG_ORIENTATION) == null) {
-            setAttribute(TAG_ORIENTATION, "0");
+            mAttributes[IFD_TIFF_HINT].put(TAG_ORIENTATION, "0");
         }
         if (getAttribute(TAG_LIGHT_SOURCE) == null) {
-            setAttribute(TAG_LIGHT_SOURCE, "0");
+            mAttributes[IFD_EXIF_HINT].put(TAG_LIGHT_SOURCE, "0");
         }
     }
 
     // Converts the tag value to timestamp; Otherwise deletes the given tag.
-    private void convertToTimetamp(String tagName) {
+    private void convertToTimestamp(String tagName) {
         String entryValue = getAttribute(tagName);
         if (entryValue == null) return;
         int dataFormat = getDataFormatOfExifEntryValue(entryValue);
@@ -1566,9 +1595,9 @@
                 int value = numerator / denominator;
                 stringBuilder.append(String.format("%02d", value));
             }
-            setAttribute(tagName, stringBuilder.toString());
+            updateAttribute(tagName, stringBuilder.toString());
         } else if (dataFormat != IFD_FORMAT_STRING) {
-            setAttribute(tagName, null);
+            removeAttribute(tagName);
         }
     }
 
@@ -1595,14 +1624,14 @@
                     }
                     stringBuilder.append((double) numerator / denominator);
                 }
-                setAttribute(tagName, stringBuilder.toString());
+                updateAttribute(tagName, stringBuilder.toString());
                 break;
             }
             case IFD_FORMAT_DOUBLE:
                 // Keep it as is.
                 break;
             default:
-                setAttribute(tagName, null);
+                removeAttribute(tagName);
                 break;
         }
     }
@@ -1624,14 +1653,14 @@
                     double doubleValue = Double.parseDouble(component);
                     stringBuilder.append((int) (doubleValue * 10000.0)).append("/").append(10000);
                 }
-                setAttribute(tagName, stringBuilder.toString());
+                updateAttribute(tagName, stringBuilder.toString());
                 break;
             }
             case IFD_FORMAT_SRATIONAL:
                 // Keep it as is.
                 break;
             default:
-                setAttribute(tagName, null);
+                removeAttribute(tagName);
                 break;
         }
     }
@@ -1642,7 +1671,7 @@
         if (entryValue == null) return;
         int dataFormat = getDataFormatOfExifEntryValue(entryValue);
         if (dataFormat != IFD_FORMAT_SLONG) {
-            setAttribute(tagName, null);
+            removeAttribute(tagName);
         }
     }
 
@@ -1758,7 +1787,7 @@
                 String entryValue = readExifEntryValue(
                         dataInputStream, dataFormat, numberOfComponents);
                 if (entryValue != null) {
-                    setAttribute(tagName, entryValue);
+                    mAttributes[hint].put(tagName, entryValue);
                 }
             } else {
                 StringBuilder entryValueBuilder = new StringBuilder();
@@ -1769,7 +1798,7 @@
                     entryValueBuilder.append(readExifEntryValue(
                             dataInputStream, dataFormat, numberOfComponents));
                 }
-                setAttribute(tagName, entryValueBuilder.toString());
+                mAttributes[hint].put(tagName, entryValueBuilder.toString());
             }
 
             if (dataInputStream.peek() != nextEntryOffset) {
@@ -1886,11 +1915,11 @@
 
         // Remove IFD pointer tags (we'll re-add it later.)
         for (ExifTag tag : IFD_POINTER_TAGS) {
-            setAttribute(tag.name, null);
+            removeAttribute(tag.name);
         }
         // Remove old thumbnail data
-        setAttribute(JPEG_INTERCHANGE_FORMAT_TAG.name, null);
-        setAttribute(JPEG_INTERCHANGE_FORMAT_LENGTH_TAG.name, null);
+        removeAttribute(JPEG_INTERCHANGE_FORMAT_TAG.name);
+        removeAttribute(JPEG_INTERCHANGE_FORMAT_LENGTH_TAG.name);
 
         // Remove null value tags.
         for (int hint = 0; hint < EXIF_TAGS.length; ++hint) {
diff --git a/media/jni/soundpool/SoundPool.cpp b/media/jni/soundpool/SoundPool.cpp
index b63df6f..d2dc440 100644
--- a/media/jni/soundpool/SoundPool.cpp
+++ b/media/jni/soundpool/SoundPool.cpp
@@ -554,6 +554,10 @@
                     if (bufidx >= 0) {
                         size_t bufsize;
                         uint8_t *buf = AMediaCodec_getInputBuffer(codec, bufidx, &bufsize);
+                        if (buf == nullptr) {
+                            ALOGE("AMediaCodec_getInputBuffer returned nullptr, short decode");
+                            break;
+                        }
                         int sampleSize = AMediaExtractor_readSampleData(ex, buf, bufsize);
                         ALOGV("read %d", sampleSize);
                         if (sampleSize < 0) {
@@ -563,10 +567,16 @@
                         }
                         int64_t presentationTimeUs = AMediaExtractor_getSampleTime(ex);
 
-                        AMediaCodec_queueInputBuffer(codec, bufidx,
+                        media_status_t mstatus = AMediaCodec_queueInputBuffer(codec, bufidx,
                                 0 /* offset */, sampleSize, presentationTimeUs,
                                 sawInputEOS ? AMEDIACODEC_BUFFER_FLAG_END_OF_STREAM : 0);
-                        AMediaExtractor_advance(ex);
+                        if (mstatus != AMEDIA_OK) {
+                            // AMEDIA_ERROR_UNKNOWN == { -ERANGE -EINVAL -EACCES }
+                            ALOGE("AMediaCodec_queueInputBuffer returned status %d, short decode",
+                                    (int)mstatus);
+                            break;
+                        }
+                        (void)AMediaExtractor_advance(ex);
                     }
                 }
 
@@ -581,6 +591,10 @@
                     ALOGV("got decoded buffer size %d", info.size);
 
                     uint8_t *buf = AMediaCodec_getOutputBuffer(codec, status, NULL /* out_size */);
+                    if (buf == nullptr) {
+                        ALOGE("AMediaCodec_getOutputBuffer returned nullptr, short decode");
+                        break;
+                    }
                     size_t dataSize = info.size;
                     if (dataSize > available) {
                         dataSize = available;
@@ -589,7 +603,14 @@
                     writePos += dataSize;
                     written += dataSize;
                     available -= dataSize;
-                    AMediaCodec_releaseOutputBuffer(codec, status, false /* render */);
+                    media_status_t mstatus = AMediaCodec_releaseOutputBuffer(
+                            codec, status, false /* render */);
+                    if (mstatus != AMEDIA_OK) {
+                        // AMEDIA_ERROR_UNKNOWN == { -ERANGE -EINVAL -EACCES }
+                        ALOGE("AMediaCodec_releaseOutputBuffer returned status %d, short decode",
+                                (int)mstatus);
+                        break;
+                    }
                     if (available == 0) {
                         // there might be more data, but there's no space for it
                         sawOutputEOS = true;
@@ -610,21 +631,21 @@
                 }
             }
 
-            AMediaCodec_stop(codec);
-            AMediaCodec_delete(codec);
-            AMediaExtractor_delete(ex);
+            (void)AMediaCodec_stop(codec);
+            (void)AMediaCodec_delete(codec);
+            (void)AMediaExtractor_delete(ex);
             if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_SAMPLE_RATE, (int32_t*) rate) ||
                     !AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_CHANNEL_COUNT, numChannels)) {
-                AMediaFormat_delete(format);
+                (void)AMediaFormat_delete(format);
                 return UNKNOWN_ERROR;
             }
-            AMediaFormat_delete(format);
+            (void)AMediaFormat_delete(format);
             *memsize = written;
             return OK;
         }
-        AMediaFormat_delete(format);
+        (void)AMediaFormat_delete(format);
     }
-    AMediaExtractor_delete(ex);
+    (void)AMediaExtractor_delete(ex);
     return UNKNOWN_ERROR;
 }
 
diff --git a/media/tests/MediaFrameworkTest/res/values/exifinterface.xml b/media/tests/MediaFrameworkTest/res/values/exifinterface.xml
index d556ad3..3c5dd37 100644
--- a/media/tests/MediaFrameworkTest/res/values/exifinterface.xml
+++ b/media/tests/MediaFrameworkTest/res/values/exifinterface.xml
@@ -103,7 +103,7 @@
         <item>600</item>
         <item>800</item>
         <item>1</item>
-        <item />
+        <item>0</item>
     </array>
     <array name="volantis_jpg">
         <item>false</item>
diff --git a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/unit/ExifInterfaceTest.java b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/unit/ExifInterfaceTest.java
index 6207f7d..dde9bda 100644
--- a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/unit/ExifInterfaceTest.java
+++ b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/unit/ExifInterfaceTest.java
@@ -45,7 +45,7 @@
     private static final String TAG = ExifInterface.class.getSimpleName();
     private static final boolean VERBOSE = false;  // lots of logging
 
-    private static final double DIFFERENCE_TOLERANCE = .005;
+    private static final double DIFFERENCE_TOLERANCE = .001;
 
     // List of files.
     private static final String EXIF_BYTE_ORDER_II_JPEG = "image_exif_byte_order_ii.jpg";
@@ -111,11 +111,11 @@
         public final String gpsLongitudeRef;
         public final String gpsProcessingMethod;
         public final String gpsTimestamp;
-        public final String imageLength;
-        public final String imageWidth;
+        public final int imageLength;
+        public final int imageWidth;
         public final String iso;
-        public final String whiteBalance;
-        public final String orientation;
+        public final int orientation;
+        public final int whiteBalance;
 
         private static String getString(TypedArray typedArray, int index) {
             String stringValue = typedArray.getString(index);
@@ -137,7 +137,7 @@
             longitude = typedArray.getFloat(5, 0f);
             altitude = typedArray.getFloat(6, 0f);
 
-            // Read values.
+            // Reads values.
             make = getString(typedArray, 7);
             model = getString(typedArray, 8);
             aperture = typedArray.getFloat(9, 0f);
@@ -154,11 +154,11 @@
             gpsLongitudeRef = getString(typedArray, 20);
             gpsProcessingMethod = getString(typedArray, 21);
             gpsTimestamp = getString(typedArray, 22);
-            imageLength = getString(typedArray, 23);
-            imageWidth = getString(typedArray, 24);
+            imageLength = typedArray.getInt(23, 0);
+            imageWidth = typedArray.getInt(24, 0);
             iso = getString(typedArray, 25);
-            orientation = getString(typedArray, 26);
-            whiteBalance = getString(typedArray, 27);
+            orientation = typedArray.getInt(26, 0);
+            whiteBalance = typedArray.getInt(27, 0);
 
             typedArray.recycle();
         }
@@ -208,11 +208,13 @@
                             + bitmap.getHeight());
                 }
             } else {
-                Log.e(TAG, fileName + " Corrupted image (no thumbnail)");
+                Log.e(TAG, fileName + " Unexpected result: No thumbnails were found. "
+                        + "A thumbnail is expected.");
             }
         } else {
             if (exifInterface.getThumbnail() != null) {
-                Log.e(TAG, fileName + " Corrupted image (a thumbnail exists)");
+                Log.e(TAG, fileName + " Unexpected result: A thumbnail was found. "
+                        + "No thumbnail is expected.");
             } else {
                 Log.v(TAG, fileName + " No thumbnail");
             }
@@ -226,28 +228,27 @@
             Log.v(TAG, fileName + " Latitude = " + latLong[0]);
             Log.v(TAG, fileName + " Longitude = " + latLong[1]);
         } else {
-            Log.v(TAG, fileName + "No latlong data");
+            Log.v(TAG, fileName + " No latlong data");
         }
 
         // Prints values.
         for (String tagKey : EXIF_TAGS) {
             String tagValue = exifInterface.getAttribute(tagKey);
-            Log.v(TAG, fileName + "Key{" + tagKey + "} = '" + tagValue + "'");
+            Log.v(TAG, fileName + " Key{" + tagKey + "} = '" + tagValue + "'");
         }
     }
 
-    private void compareFloatTag(ExifInterface exifInterface, String tag, float expectedValue) {
-        String stringValue = exifInterface.getAttribute(tag);
-        float floatValue = 0f;
-
-        if (stringValue != null) {
-            floatValue = Float.parseFloat(stringValue);
-        }
-
-        assertEquals(expectedValue, floatValue, DIFFERENCE_TOLERANCE);
+    private void assertIntTag(ExifInterface exifInterface, String tag, int expectedValue) {
+        int intValue = exifInterface.getAttributeInt(tag, 0);
+        assertEquals(expectedValue, intValue);
     }
 
-    private void compareStringTag(ExifInterface exifInterface, String tag, String expectedValue) {
+    private void assertFloatTag(ExifInterface exifInterface, String tag, float expectedValue) {
+        double doubleValue = exifInterface.getAttributeDouble(tag, 0.0);
+        assertEquals(expectedValue, doubleValue, DIFFERENCE_TOLERANCE);
+    }
+
+    private void assertStringTag(ExifInterface exifInterface, String tag, String expectedValue) {
         String stringValue = exifInterface.getAttribute(tag);
         if (stringValue != null) {
             stringValue = stringValue.trim();
@@ -257,7 +258,10 @@
     }
 
     private void compareWithExpectedValue(ExifInterface exifInterface,
-            ExpectedValue expectedValue) {
+            ExpectedValue expectedValue, String verboseTag) {
+        if (VERBOSE) {
+            printExifTagsAndValues(verboseTag, exifInterface);
+        }
         // Checks a thumbnail image.
         assertEquals(expectedValue.hasThumbnail, exifInterface.hasThumbnail());
         if (expectedValue.hasThumbnail) {
@@ -282,78 +286,144 @@
         assertEquals(expectedValue.altitude, exifInterface.getAltitude(.0), DIFFERENCE_TOLERANCE);
 
         // Checks values.
-        compareStringTag(exifInterface, ExifInterface.TAG_MAKE, expectedValue.make);
-        compareStringTag(exifInterface, ExifInterface.TAG_MODEL, expectedValue.model);
-        compareFloatTag(exifInterface, ExifInterface.TAG_APERTURE, expectedValue.aperture);
-        compareStringTag(exifInterface, ExifInterface.TAG_DATETIME, expectedValue.datetime);
-        compareFloatTag(exifInterface, ExifInterface.TAG_EXPOSURE_TIME, expectedValue.exposureTime);
-        compareFloatTag(exifInterface, ExifInterface.TAG_FLASH, expectedValue.flash);
-        compareStringTag(exifInterface, ExifInterface.TAG_FOCAL_LENGTH, expectedValue.focalLength);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_ALTITUDE, expectedValue.gpsAltitude);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_ALTITUDE_REF,
+        assertStringTag(exifInterface, ExifInterface.TAG_MAKE, expectedValue.make);
+        assertStringTag(exifInterface, ExifInterface.TAG_MODEL, expectedValue.model);
+        assertFloatTag(exifInterface, ExifInterface.TAG_APERTURE, expectedValue.aperture);
+        assertStringTag(exifInterface, ExifInterface.TAG_DATETIME, expectedValue.datetime);
+        assertFloatTag(exifInterface, ExifInterface.TAG_EXPOSURE_TIME, expectedValue.exposureTime);
+        assertFloatTag(exifInterface, ExifInterface.TAG_FLASH, expectedValue.flash);
+        assertStringTag(exifInterface, ExifInterface.TAG_FOCAL_LENGTH, expectedValue.focalLength);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_ALTITUDE, expectedValue.gpsAltitude);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_ALTITUDE_REF,
                 expectedValue.gpsAltitudeRef);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_DATESTAMP,
-                expectedValue.gpsDatestamp);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_LATITUDE, expectedValue.gpsLatitude);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_LATITUDE_REF,
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_DATESTAMP, expectedValue.gpsDatestamp);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_LATITUDE, expectedValue.gpsLatitude);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_LATITUDE_REF,
                 expectedValue.gpsLatitudeRef);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_LONGITUDE,
-                expectedValue.gpsLongitude);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_LONGITUDE_REF,
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_LONGITUDE, expectedValue.gpsLongitude);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_LONGITUDE_REF,
                 expectedValue.gpsLongitudeRef);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_PROCESSING_METHOD,
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_PROCESSING_METHOD,
                 expectedValue.gpsProcessingMethod);
-        compareStringTag(exifInterface, ExifInterface.TAG_GPS_TIMESTAMP,
-                expectedValue.gpsTimestamp);
-        compareStringTag(exifInterface, ExifInterface.TAG_IMAGE_LENGTH, expectedValue.imageLength);
-        compareStringTag(exifInterface, ExifInterface.TAG_IMAGE_WIDTH, expectedValue.imageWidth);
-        compareStringTag(exifInterface, ExifInterface.TAG_ISO, expectedValue.iso);
-        compareStringTag(exifInterface, ExifInterface.TAG_ORIENTATION, expectedValue.orientation);
-        compareStringTag(exifInterface, ExifInterface.TAG_WHITE_BALANCE,
-                expectedValue.whiteBalance);
+        assertStringTag(exifInterface, ExifInterface.TAG_GPS_TIMESTAMP, expectedValue.gpsTimestamp);
+        assertIntTag(exifInterface, ExifInterface.TAG_IMAGE_LENGTH, expectedValue.imageLength);
+        assertIntTag(exifInterface, ExifInterface.TAG_IMAGE_WIDTH, expectedValue.imageWidth);
+        assertStringTag(exifInterface, ExifInterface.TAG_ISO, expectedValue.iso);
+        assertIntTag(exifInterface, ExifInterface.TAG_ORIENTATION, expectedValue.orientation);
+        assertIntTag(exifInterface, ExifInterface.TAG_WHITE_BALANCE, expectedValue.whiteBalance);
     }
 
     private void testExifInterfaceCommon(File imageFile, ExpectedValue expectedValue)
             throws IOException {
-        // Created via path.
+        String verboseTag = imageFile.getName();
+
+        // Creates via path.
         ExifInterface exifInterface = new ExifInterface(imageFile.getAbsolutePath());
-        if (VERBOSE) {
-            printExifTagsAndValues(imageFile.getName(), exifInterface);
-        }
-        compareWithExpectedValue(exifInterface, expectedValue);
+        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
 
-        // Created from an asset file.
-        InputStream in = mContext.getAssets().open(imageFile.getName());
-        exifInterface = new ExifInterface(in);
-        if (VERBOSE) {
-            printExifTagsAndValues(imageFile.getName(), exifInterface);
-        }
-        compareWithExpectedValue(exifInterface, expectedValue);
-
-        // Created via InputStream.
-        in = null;
+        // Creates from an asset file.
+        InputStream in = null;
         try {
-            in = new BufferedInputStream(new FileInputStream(imageFile.getAbsolutePath()));
+            in = mContext.getAssets().open(imageFile.getName());
             exifInterface = new ExifInterface(in);
-            if (VERBOSE) {
-                printExifTagsAndValues(imageFile.getName(), exifInterface);
-            }
-            compareWithExpectedValue(exifInterface, expectedValue);
+            compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
         } finally {
             IoUtils.closeQuietly(in);
         }
 
-        // Created via FileDescriptor.
+        // Creates via InputStream.
+        in = null;
         try {
-            FileDescriptor fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDONLY, 0600);
-            exifInterface = new ExifInterface(fd);
-            if (VERBOSE) {
-                printExifTagsAndValues(imageFile.getName(), exifInterface);
-            }
-            compareWithExpectedValue(exifInterface, expectedValue);
-        } catch (ErrnoException e) {
-            e.rethrowAsIOException();
+            in = new BufferedInputStream(new FileInputStream(imageFile.getAbsolutePath()));
+            exifInterface = new ExifInterface(in);
+            compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+        } finally {
+            IoUtils.closeQuietly(in);
         }
+
+        // Creates via FileDescriptor.
+        FileDescriptor fd = null;
+        try {
+            fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDONLY, 0600);
+            exifInterface = new ExifInterface(fd);
+            compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+        } catch (ErrnoException e) {
+            throw e.rethrowAsIOException();
+        } finally {
+            IoUtils.closeQuietly(fd);
+        }
+    }
+
+    private void testSaveAttributes_withFileName(File imageFile, ExpectedValue expectedValue)
+            throws IOException {
+        String verboseTag = imageFile.getName();
+
+        ExifInterface exifInterface = new ExifInterface(imageFile.getAbsolutePath());
+        exifInterface.saveAttributes();
+        exifInterface = new ExifInterface(imageFile.getAbsolutePath());
+        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+
+        // Test for modifying one attribute.
+        String backupValue = exifInterface.getAttribute(ExifInterface.TAG_MAKE);
+        exifInterface.setAttribute(ExifInterface.TAG_MAKE, "abc");
+        exifInterface.saveAttributes();
+        exifInterface = new ExifInterface(imageFile.getAbsolutePath());
+        assertEquals("abc", exifInterface.getAttribute(ExifInterface.TAG_MAKE));
+        // Restore the backup value.
+        exifInterface.setAttribute(ExifInterface.TAG_MAKE, backupValue);
+        exifInterface.saveAttributes();
+        exifInterface = new ExifInterface(imageFile.getAbsolutePath());
+        compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+    }
+
+    private void testSaveAttributes_withFileDescriptor(File imageFile, ExpectedValue expectedValue)
+            throws IOException {
+        String verboseTag = imageFile.getName();
+
+        FileDescriptor fd = null;
+        try {
+            fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDWR, 0600);
+            ExifInterface exifInterface = new ExifInterface(fd);
+            exifInterface.saveAttributes();
+            Os.lseek(fd, 0, OsConstants.SEEK_SET);
+            exifInterface = new ExifInterface(fd);
+            compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+
+            // Test for modifying one attribute.
+            String backupValue = exifInterface.getAttribute(ExifInterface.TAG_MAKE);
+            exifInterface.setAttribute(ExifInterface.TAG_MAKE, "abc");
+            exifInterface.saveAttributes();
+            Os.lseek(fd, 0, OsConstants.SEEK_SET);
+            exifInterface = new ExifInterface(fd);
+            assertEquals("abc", exifInterface.getAttribute(ExifInterface.TAG_MAKE));
+            // Restore the backup value.
+            exifInterface.setAttribute(ExifInterface.TAG_MAKE, backupValue);
+            exifInterface.saveAttributes();
+            Os.lseek(fd, 0, OsConstants.SEEK_SET);
+            exifInterface = new ExifInterface(fd);
+            compareWithExpectedValue(exifInterface, expectedValue, verboseTag);
+        } catch (ErrnoException e) {
+            throw e.rethrowAsIOException();
+        } finally {
+            IoUtils.closeQuietly(fd);
+        }
+    }
+
+    private void testSaveAttributes_withInputStream(File imageFile, ExpectedValue expectedValue)
+            throws IOException {
+        InputStream in = null;
+        try {
+            in = getContext().getAssets().open(imageFile.getName());
+            ExifInterface exifInterface = new ExifInterface(in);
+            exifInterface.saveAttributes();
+        } catch (UnsupportedOperationException e) {
+            // Expected. saveAttributes is not supported with an ExifInterface object which was
+            // created with InputStream.
+            return;
+        } finally {
+            IoUtils.closeQuietly(in);
+        }
+        fail("Should not reach here!");
     }
 
     private void testExifInterfaceForJpeg(String fileName, int typedArrayResourceId)
@@ -366,30 +436,9 @@
         testExifInterfaceCommon(imageFile, expectedValue);
 
         // Test for saving attributes.
-        ExifInterface exifInterface;
-        try {
-            FileDescriptor fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDWR, 0600);
-            exifInterface = new ExifInterface(fd);
-            exifInterface.saveAttributes();
-            fd = Os.open(imageFile.getAbsolutePath(), OsConstants.O_RDWR, 0600);
-            exifInterface = new ExifInterface(fd);
-            if (VERBOSE) {
-                printExifTagsAndValues(fileName, exifInterface);
-            }
-            compareWithExpectedValue(exifInterface, expectedValue);
-        } catch (ErrnoException e) {
-            e.rethrowAsIOException();
-        }
-
-        // Test for modifying one attribute.
-        exifInterface = new ExifInterface(imageFile.getAbsolutePath());
-        exifInterface.setAttribute(ExifInterface.TAG_MAKE, "abc");
-        exifInterface.saveAttributes();
-        exifInterface = new ExifInterface(imageFile.getAbsolutePath());
-        if (VERBOSE) {
-            printExifTagsAndValues(fileName, exifInterface);
-        }
-        assertEquals("abc", exifInterface.getAttribute(ExifInterface.TAG_MAKE));
+        testSaveAttributes_withFileName(imageFile, expectedValue);
+        testSaveAttributes_withFileDescriptor(imageFile, expectedValue);
+        testSaveAttributes_withInputStream(imageFile, expectedValue);
     }
 
     private void testExifInterfaceForRaw(String fileName, int typedArrayResourceId)
diff --git a/packages/DocumentsUI/perf-tests/Android.mk b/packages/DocumentsUI/perf-tests/Android.mk
index 919fc56..5ebf85f 100644
--- a/packages/DocumentsUI/perf-tests/Android.mk
+++ b/packages/DocumentsUI/perf-tests/Android.mk
@@ -2,8 +2,8 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_TAGS := tests
-#LOCAL_SDK_VERSION := current
 
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
 LOCAL_SRC_FILES := $(call all-java-files-under, src) \
     $(call all-java-files-under, ../tests/src/com/android/documentsui/bots) \
     ../tests/src/com/android/documentsui/ActivityTest.java \
diff --git a/packages/DocumentsUI/perf-tests/res/raw/earth_small.jpg b/packages/DocumentsUI/perf-tests/res/raw/earth_small.jpg
new file mode 100644
index 0000000..dd2da3e
--- /dev/null
+++ b/packages/DocumentsUI/perf-tests/res/raw/earth_small.jpg
Binary files differ
diff --git a/packages/DocumentsUI/perf-tests/src/com/android/documentsui/StressProvider.java b/packages/DocumentsUI/perf-tests/src/com/android/documentsui/StressProvider.java
index 6147a71..f9b06f8 100644
--- a/packages/DocumentsUI/perf-tests/src/com/android/documentsui/StressProvider.java
+++ b/packages/DocumentsUI/perf-tests/src/com/android/documentsui/StressProvider.java
@@ -18,9 +18,11 @@
 
 import android.content.Context;
 import android.content.pm.ProviderInfo;
+import android.content.res.AssetFileDescriptor;
 import android.database.Cursor;
 import android.database.MatrixCursor.RowBuilder;
 import android.database.MatrixCursor;
+import android.graphics.Point;
 import android.os.CancellationSignal;
 import android.os.FileUtils;
 import android.os.ParcelFileDescriptor;
@@ -31,6 +33,7 @@
 
 import java.io.File;
 import java.io.FileNotFoundException;
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -102,7 +105,14 @@
         children = new ArrayList<StubDocument>();
         mChildDocuments.put(STRESS_ROOT_2_DOC_ID, children);
         for (int i = 0; i < STRESS_ROOT_2_ITEMS; i++) {
-            document = StubDocument.createFile(STRESS_ROOT_1_ITEMS + i);
+            try {
+                document = StubDocument.createFile(
+                        getContext(), MIME_TYPE_IMAGE,
+                        com.android.documentsui.perftests.R.raw.earth_small,
+                        STRESS_ROOT_1_ITEMS + i);
+            } catch (IOException e) {
+                return false;
+            }
             mDocuments.put(document.id, document);
             children.add(document);
         }
@@ -151,6 +161,14 @@
     }
 
     @Override
+    public AssetFileDescriptor openDocumentThumbnail(String docId, Point sizeHint,
+            CancellationSignal signal)
+            throws FileNotFoundException {
+        final StubDocument document = mDocuments.get(docId);
+        return getContext().getResources().openRawResourceFd(document.thumbnail);
+    }
+
+    @Override
     public ParcelFileDescriptor openDocument(String docId, String mode,
             CancellationSignal signal)
             throws FileNotFoundException {
@@ -171,7 +189,8 @@
         row.add(Document.COLUMN_DISPLAY_NAME, document.id);
         row.add(Document.COLUMN_SIZE, document.size);
         row.add(Document.COLUMN_MIME_TYPE, document.mimeType);
-        row.add(Document.COLUMN_FLAGS, 0);
+        row.add(Document.COLUMN_FLAGS,
+                document.thumbnail != -1 ? Document.FLAG_SUPPORTS_THUMBNAIL : 0);
         row.add(Document.COLUMN_LAST_MODIFIED, document.lastModified);
     }
 
@@ -184,28 +203,32 @@
         final String id;
         final int size;
         final long lastModified;
+        final int thumbnail;
 
-        private StubDocument(String mimeType, String id, int size, long lastModified) {
+        private StubDocument(String mimeType, String id, int size, long lastModified,
+                int thumbnail) {
             this.mimeType = mimeType;
             this.id = id;
             this.size = size;
             this.lastModified = lastModified;
+            this.thumbnail = thumbnail;
         }
 
         public static StubDocument createDirectory(int index) {
             return new StubDocument(
                     DocumentsContract.Document.MIME_TYPE_DIR, createRandomId(index), 0,
-                    createRandomTime(index));
+                    createRandomTime(index), -1);
         }
 
         public static StubDocument createDirectory(String id) {
-            return new StubDocument(DocumentsContract.Document.MIME_TYPE_DIR, id, 0, 0);
+            return new StubDocument(DocumentsContract.Document.MIME_TYPE_DIR, id, 0, 0, -1);
         }
 
-        public static StubDocument createFile(int index) {
+        public static StubDocument createFile(Context context, String mimeType, int thumbnail,
+                int index) throws IOException {
             return new StubDocument(
-                    MIME_TYPE_IMAGE, createRandomId(index), createRandomSize(index),
-                    createRandomTime(index));
+                    mimeType, createRandomId(index), createRandomSize(index),
+                    createRandomTime(index), thumbnail);
         }
 
         private static String createRandomId(int index) {
diff --git a/packages/DocumentsUI/res/values/strings.xml b/packages/DocumentsUI/res/values/strings.xml
index b26ee97..fb557ca 100644
--- a/packages/DocumentsUI/res/values/strings.xml
+++ b/packages/DocumentsUI/res/values/strings.xml
@@ -204,6 +204,9 @@
     <string name="open_external_dialog_request">Grant <xliff:g id="appName" example="System Settings"><b>^1</b></xliff:g>
         access to <xliff:g id="directory" example="Pictures"><i>^2</i></xliff:g> directory on
         <xliff:g id="storage" example="SD Card"><i>^3</i></xliff:g>?</string>
+    <!-- Text in an alert dialog asking user to grant app access to a given directory in the internal storage -->
+    <string name="open_external_dialog_request_primary_volume">Grant <xliff:g id="appName" example="System Settings"><b>^1</b></xliff:g>
+        access to <xliff:g id="directory" example="Pictures"><i>^2</i></xliff:g> directory?</string>
     <!-- Text in an alert dialog asking user to grant app access to all data in an external storage volume -->
     <string name="open_external_dialog_root_request">Grant <xliff:g id="appName" example="System Settings"><b>^1</b></xliff:g>
         access to your data, including photos and videos, on <xliff:g id="storage" example="SD Card"><i>^2</i></xliff:g>?</string>
diff --git a/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
index ebc9082..5b5a96e 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/CreateDirectoryFragment.java
@@ -153,10 +153,12 @@
             if (result != null) {
                 // Navigate into newly created child
                 mActivity.onDirectoryCreated(result);
+                Metrics.logCreateDirOperation(getContext());
             } else {
-                Snackbars.makeSnackbar(mActivity, R.string.create_error, Snackbar.LENGTH_SHORT).show();
+                Snackbars.makeSnackbar(mActivity, R.string.create_error, Snackbar.LENGTH_SHORT)
+                        .show();
+                Metrics.logCreateDirError(getContext());
             }
-
             mActivity.setPending(false);
         }
     }
diff --git a/packages/DocumentsUI/src/com/android/documentsui/DrawerController.java b/packages/DocumentsUI/src/com/android/documentsui/DrawerController.java
index 2dbb730..7a4099a 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/DrawerController.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/DrawerController.java
@@ -18,6 +18,7 @@
 
 import static com.android.documentsui.Shared.DEBUG;
 
+import android.annotation.IntDef;
 import android.app.Activity;
 import android.content.Context;
 import android.support.v4.app.ActionBarDrawerToggle;
@@ -27,16 +28,44 @@
 import android.view.View;
 import android.widget.Toolbar;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
 /**
  * A facade over the various pieces comprising "roots fragment in a Drawer".
  *
  * @see DrawerController#create(DrawerLayout)
  */
 abstract class DrawerController implements DrawerListener {
-
     public static final String TAG = "DrawerController";
 
+    // Drawer opening triggered by tapping the navigation icon
+    public static final int OPENED_HAMBURGER = 0;
+    // Drawer opening triggered by swiping right from the edge of the screen
+    public static final int OPENED_SWIPE = 1;
+    // Mostly programmatically forced drawer opening
+    public static final int OPENED_OTHER = 2;
+
+    @IntDef(flag = true, value = {
+            OPENED_HAMBURGER,
+            OPENED_SWIPE,
+            OPENED_OTHER
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface Trigger {}
+
+    /**
+     * Toggles the drawer and sets the OPENED_OTHER as the action that causes opening the drawer.
+     * @param open
+     */
     abstract void setOpen(boolean open);
+
+    /**
+     * Toggles the drawer.
+     * @param open
+     * @param trigger Indicates what action caused opening the drawer. It is ignored for closing.
+     */
+    abstract void setOpen(boolean open, @Trigger int trigger);
     abstract boolean isPresent();
     abstract boolean isOpen();
     abstract void setTitle(String title);
@@ -92,11 +121,11 @@
      * Runtime controller that manages a real drawer.
      */
     private static final class RuntimeDrawerController extends DrawerController {
-
         private final ActionBarDrawerToggle mToggle;
         private DrawerLayout mLayout;
         private View mDrawer;
         private Toolbar mToolbar;
+        private @Trigger int mTrigger = OPENED_OTHER;
 
         public RuntimeDrawerController(
                 DrawerLayout layout, View drawer, ActionBarDrawerToggle toggle,
@@ -113,8 +142,14 @@
 
         @Override
         void setOpen(boolean open) {
+            setOpen(open, OPENED_OTHER);
+        }
+
+        @Override
+        void setOpen(boolean open, @Trigger int trigger) {
             if (open) {
                 mLayout.openDrawer(mDrawer);
+                mTrigger = trigger;
             } else {
                 mLayout.closeDrawer(mDrawer);
             }
@@ -148,16 +183,21 @@
         @Override
         public void onDrawerOpened(View drawerView) {
             mToggle.onDrawerOpened(drawerView);
+            Metrics.logDrawerOpened(mToolbar.getContext(), mTrigger);
         }
 
         @Override
         public void onDrawerClosed(View drawerView) {
             mToggle.onDrawerClosed(drawerView);
+            mTrigger = OPENED_OTHER;
         }
 
         @Override
         public void onDrawerStateChanged(int newState) {
             mToggle.onDrawerStateChanged(newState);
+            if (newState == DrawerLayout.STATE_DRAGGING) {
+                mTrigger = OPENED_SWIPE;
+            }
         }
     }
 
@@ -169,6 +209,8 @@
         @Override
         void setOpen(boolean open) {}
 
+        @Override
+        void setOpen(boolean open, @Trigger int trigger) {}
 
         @Override
         boolean isOpen() {
diff --git a/packages/DocumentsUI/src/com/android/documentsui/FilesActivity.java b/packages/DocumentsUI/src/com/android/documentsui/FilesActivity.java
index 3e04e2a..68c0c2a 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/FilesActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/FilesActivity.java
@@ -235,7 +235,7 @@
         // With new multi-window mode we have to pick how we are launched.
         // By default we'd be launched in-place above the existing app.
         // By setting launch-to-side ActivityManager will open us to side.
-        if (inMultiWindow()) {
+        if (isInMultiWindowMode()) {
             intent.addFlags(Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT);
         }
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/Metrics.java b/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
index 7ad4a09..f1f47c8 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/Metrics.java
@@ -66,6 +66,7 @@
     private static final String COUNT_FILEOP_EXTERNAL = "docsui_fileop_external";
     private static final String COUNT_FILEOP_CANCELED = "docsui_fileop_canceled";
     private static final String COUNT_STARTUP_MS = "docsui_startup_ms";
+    private static final String COUNT_DRAWER_OPENED = "docsui_drawer_opened";
 
     // Indices for bucketing roots in the roots histogram. "Other" is the catch-all index for any
     // root that is not explicitly recognized by the Metrics code (see {@link
@@ -146,10 +147,14 @@
     private static final int FILEOP_MOVE_SYSTEM_PROVIDER = 6; // Move to a system provider.
     private static final int FILEOP_MOVE_EXTERNAL_PROVIDER = 7; // Move to a 3rd-party provider.
     private static final int FILEOP_DELETE = 8;
+    private static final int FILEOP_RENAME = 9;
+    private static final int FILEOP_CREATE_DIR = 10;
     private static final int FILEOP_OTHER_ERROR = 100;
     private static final int FILEOP_DELETE_ERROR = 101;
     private static final int FILEOP_MOVE_ERROR = 102;
     private static final int FILEOP_COPY_ERROR = 103;
+    private static final int FILEOP_RENAME_ERROR = 104;
+    private static final int FILEOP_CREATE_DIR_ERROR = 105;
 
     @IntDef(flag = true, value = {
             FILEOP_OTHER,
@@ -160,10 +165,14 @@
             FILEOP_MOVE_SYSTEM_PROVIDER,
             FILEOP_MOVE_EXTERNAL_PROVIDER,
             FILEOP_DELETE,
+            FILEOP_RENAME,
+            FILEOP_CREATE_DIR,
             FILEOP_OTHER_ERROR,
             FILEOP_COPY_ERROR,
             FILEOP_MOVE_ERROR,
-            FILEOP_DELETE_ERROR
+            FILEOP_DELETE_ERROR,
+            FILEOP_RENAME_ERROR,
+            FILEOP_CREATE_DIR_ERROR
     })
     @Retention(RetentionPolicy.SOURCE)
     public @interface FileOp {}
@@ -227,6 +236,21 @@
     @Retention(RetentionPolicy.SOURCE)
     public @interface Provider {}
 
+    // Codes representing different actions to open the drawer. They are used for bucketing stats in
+    // the COUNT_DRAWER_OPENED histogram.
+    // Do not change or rearrange these values, that will break historical data. Only add to the
+    // list.
+    // Do not use negative numbers or zero; clearcut only handles positive integers.
+    private static final int DRAWER_OPENED_HAMBURGER = 1;
+    private static final int DRAWER_OPENED_SWIPE = 2;
+
+    @IntDef(flag = true, value = {
+            DRAWER_OPENED_HAMBURGER,
+            DRAWER_OPENED_SWIPE
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface DrawerTrigger {}
+
     /**
      * Logs when DocumentsUI is started, and how. Call this when DocumentsUI first starts up.
      *
@@ -287,6 +311,20 @@
     }
 
     /**
+     * Logs a drawer opened event. Call this when the user opens drawer by swipe or by clicking the
+     * hamburger icon.
+     * @param context
+     * @param trigger type of action that opened the drawer
+     */
+    public static void logDrawerOpened(Context context, @DrawerController.Trigger int trigger) {
+        if (trigger == DrawerController.OPENED_HAMBURGER) {
+            logHistogram(context, COUNT_DRAWER_OPENED, DRAWER_OPENED_HAMBURGER);
+        } else if (trigger == DrawerController.OPENED_SWIPE) {
+            logHistogram(context, COUNT_DRAWER_OPENED, DRAWER_OPENED_SWIPE);
+        }
+    }
+
+    /**
      * Logs file operation stats. Call this when a file operation has completed. The given
      * DocumentInfo is only used to distinguish broad categories of actions (e.g. copying from one
      * provider to another vs copying within a given provider).  No PII is logged.
@@ -317,6 +355,28 @@
     }
 
     /**
+     * Logs create directory operation. It is a part of file operation stats. We do not
+     * differentiate between internal and external locations, all create directory operations are
+     * logged under COUNT_FILEOP_SYSTEM. Call this when a create directory operation has completed.
+     *
+     * @param context
+     */
+    public static void logCreateDirOperation(Context context) {
+        logHistogram(context, COUNT_FILEOP_SYSTEM, FILEOP_CREATE_DIR);
+    }
+
+    /**
+     * Logs rename file operation. It is a part of file operation stats. We do not differentiate
+     * between internal and external locations, all rename operations are logged under
+     * COUNT_FILEOP_SYSTEM. Call this when a rename file operation has completed.
+     *
+     * @param context
+     */
+    public static void logRenameFileOperation(Context context) {
+        logHistogram(context, COUNT_FILEOP_SYSTEM, FILEOP_RENAME);
+    }
+
+    /**
      * Logs some kind of file operation error. Call this when a file operation (e.g. copy, delete)
      * fails.
      *
@@ -349,6 +409,28 @@
     }
 
     /**
+     * Logs create directory operation error. We do not differentiate between internal and external
+     * locations, all create directory errors are logged under COUNT_FILEOP_SYSTEM. Call this when a
+     * create directory operation fails.
+     *
+     * @param context
+     */
+    public static void logCreateDirError(Context context) {
+        logHistogram(context, COUNT_FILEOP_SYSTEM, FILEOP_CREATE_DIR);
+    }
+
+    /**
+     * Logs rename file operation error. We do not differentiate between internal and external
+     * locations, all rename errors are logged under COUNT_FILEOP_SYSTEM. Call this
+     * when a rename file operation fails.
+     *
+     * @param context
+     */
+    public static void logRenameFileError(Context context) {
+        logHistogram(context, COUNT_FILEOP_SYSTEM, FILEOP_RENAME_ERROR);
+    }
+
+    /**
      * Logs the cancellation of a file operation.  Call this when a Job is canceled.
      * @param context
      * @param operationType
diff --git a/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java b/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
index 30c1020..f6fe47b 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
@@ -91,7 +91,7 @@
 
     private void onNavigationIconClicked() {
         if (mDrawer.isPresent()) {
-            mDrawer.setOpen(true);
+            mDrawer.setOpen(true, DrawerController.OPENED_HAMBURGER);
         }
     }
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/OpenExternalDirectoryActivity.java b/packages/DocumentsUI/src/com/android/documentsui/OpenExternalDirectoryActivity.java
index 2fe2756..854be0b 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/OpenExternalDirectoryActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/OpenExternalDirectoryActivity.java
@@ -86,6 +86,7 @@
     private static final String EXTRA_VOLUME_LABEL = "com.android.documentsui.VOLUME_LABEL";
     private static final String EXTRA_VOLUME_UUID = "com.android.documentsui.VOLUME_UUID";
     private static final String EXTRA_IS_ROOT = "com.android.documentsui.IS_ROOT";
+    private static final String EXTRA_IS_PRIMARY = "com.android.documentsui.IS_PRIMARY";
     // Special directory name representing the full volume
     static final String DIRECTORY_ROOT = "ROOT_DIRECTORY";
 
@@ -157,6 +158,13 @@
             Log.d(TAG, "showFragment() for volume " + storageVolume.dump() + ", directory "
                     + directoryName + ", and user " + userId);
         final boolean isRoot = directoryName.equals(DIRECTORY_ROOT);
+        final boolean isPrimary = storageVolume.isPrimary();
+
+        if (isRoot && isPrimary) {
+            if (DEBUG) Log.d(TAG, "root access requested on primary volume");
+            return false;
+        }
+
         final File volumeRoot = storageVolume.getPathFile();
         File file;
         try {
@@ -235,6 +243,7 @@
         args.putString(EXTRA_VOLUME_UUID, volumeUuid);
         args.putString(EXTRA_APP_LABEL, appLabel);
         args.putBoolean(EXTRA_IS_ROOT, isRoot);
+        args.putBoolean(EXTRA_IS_PRIMARY, isPrimary);
 
         final FragmentManager fm = activity.getFragmentManager();
         final FragmentTransaction ft = fm.beginTransaction();
@@ -352,6 +361,7 @@
         private String mVolumeLabel;
         private String mAppLabel;
         private boolean mIsRoot;
+        private boolean mIsPrimary;
         private CheckBox mDontAskAgain;
         private OpenExternalDirectoryActivity mActivity;
         private AlertDialog mDialog;
@@ -367,6 +377,7 @@
                 mVolumeLabel = args.getString(EXTRA_VOLUME_LABEL);
                 mAppLabel = args.getString(EXTRA_APP_LABEL);
                 mIsRoot = args.getBoolean(EXTRA_IS_ROOT);
+                mIsPrimary= args.getBoolean(EXTRA_IS_PRIMARY);
             }
             mActivity = (OpenExternalDirectoryActivity) getActivity();
         }
@@ -435,7 +446,9 @@
                 message = TextUtils.expandTemplate(getText(
                         R.string.open_external_dialog_root_request), mAppLabel, mVolumeLabel);
             } else {
-                message = TextUtils.expandTemplate(getText(R.string.open_external_dialog_request),
+                message = TextUtils.expandTemplate(
+                        getText(mIsPrimary ? R.string.open_external_dialog_request_primary_volume
+                                : R.string.open_external_dialog_request),
                         mAppLabel, directory, mVolumeLabel);
             }
             final TextView messageField = (TextView) view.findViewById(R.id.message);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java b/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
index 6efe9c8..c035d92 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
@@ -65,8 +65,6 @@
 
     private static final String TAG = "RootsCache";
 
-    private static final boolean ENABLE_SYSTEM_CACHE = true;
-
     private final Context mContext;
     private final ContentObserver mObserver;
     private OnCacheUpdateListener mCacheUpdateListener;
@@ -200,7 +198,7 @@
         synchronized (mLock) {
             for (String authority : mStoppedAuthorities) {
                 if (DEBUG) Log.d(TAG, "Loading stopped authority " + authority);
-                mRoots.putAll(authority, loadRootsForAuthority(resolver, authority));
+                mRoots.putAll(authority, loadRootsForAuthority(resolver, authority, true));
             }
             mStoppedAuthorities.clear();
         }
@@ -219,13 +217,13 @@
             if (DEBUG) {
                 Log.d(TAG, "Loading stopped authority " + authority);
             }
-            mRoots.putAll(authority, loadRootsForAuthority(resolver, authority));
+            mRoots.putAll(authority, loadRootsForAuthority(resolver, authority, true));
             mStoppedAuthorities.remove(authority);
         }
     }
 
     private class UpdateTask extends AsyncTask<Void, Void, Void> {
-        private final String mFilterPackage;
+        private final String mForceRefreshPackage;
 
         private final Multimap<String, RootInfo> mTaskRoots = ArrayListMultimap.create();
         private final HashSet<String> mTaskStoppedAuthorities = new HashSet<>();
@@ -238,18 +236,18 @@
         }
 
         /**
-         * Only update roots belonging to given package name. Other roots will
+         * Force update roots belonging to given package name. Other roots will
          * be copied from cached {@link #mRoots} values.
          */
-        public UpdateTask(String filterPackage) {
-            mFilterPackage = filterPackage;
+        public UpdateTask(String forceRefreshPackage) {
+            mForceRefreshPackage = forceRefreshPackage;
         }
 
         @Override
         protected Void doInBackground(Void... params) {
             final long start = SystemClock.elapsedRealtime();
 
-            if (mFilterPackage != null) {
+            if (mForceRefreshPackage != null) {
                 // We must have previously cached values to fill in non-matching
                 // packages, so wait around for successful first load.
                 if (!waitForFirstLoad()) {
@@ -302,29 +300,17 @@
                 return;
             }
 
-            // Try using cached roots if filtering
-            boolean cacheHit = false;
-            if (mFilterPackage != null && !mFilterPackage.equals(info.packageName)) {
-                synchronized (mLock) {
-                    if (mTaskRoots.putAll(info.authority, mRoots.get(info.authority))) {
-                        if (DEBUG) Log.d(TAG, "Used cached roots for " + info.authority);
-                        cacheHit = true;
-                    }
-                }
-            }
-
-            // Cache miss, or loading everything
-            if (!cacheHit) {
-                mTaskRoots.putAll(info.authority,
-                        loadRootsForAuthority(mContext.getContentResolver(), info.authority));
-            }
+            final boolean forceRefresh = Objects.equals(mForceRefreshPackage, info.packageName);
+            mTaskRoots.putAll(info.authority, loadRootsForAuthority(mContext.getContentResolver(),
+                    info.authority, forceRefresh));
         }
     }
 
     /**
      * Bring up requested provider and query for all active roots.
      */
-    private Collection<RootInfo> loadRootsForAuthority(ContentResolver resolver, String authority) {
+    private Collection<RootInfo> loadRootsForAuthority(ContentResolver resolver, String authority,
+            boolean forceRefresh) {
         if (DEBUG) Log.d(TAG, "Loading roots for " + authority);
 
         synchronized (mObservedAuthorities) {
@@ -336,7 +322,7 @@
         }
 
         final Uri rootsUri = DocumentsContract.buildRootsUri(authority);
-        if (ENABLE_SYSTEM_CACHE) {
+        if (!forceRefresh) {
             // Look for roots data that we might have cached for ourselves in the
             // long-lived system process.
             final Bundle systemCache = resolver.getCache(rootsUri);
@@ -363,14 +349,12 @@
             ContentProviderClient.releaseQuietly(client);
         }
 
-        if (ENABLE_SYSTEM_CACHE) {
-            // Cache these freshly parsed roots over in the long-lived system
-            // process, in case our process goes away. The system takes care of
-            // invalidating the cache if the package or Uri changes.
-            final Bundle systemCache = new Bundle();
-            systemCache.putParcelableArrayList(TAG, roots);
-            resolver.putCache(rootsUri, systemCache);
-        }
+        // Cache these freshly parsed roots over in the long-lived system
+        // process, in case our process goes away. The system takes care of
+        // invalidating the cache if the package or Uri changes.
+        final Bundle systemCache = new Bundle();
+        systemCache.putParcelableArrayList(TAG, roots);
+        resolver.putCache(rootsUri, systemCache);
 
         return roots;
     }
@@ -384,8 +368,8 @@
         synchronized (mLock) {
             RootInfo root = getRootLocked(authority, rootId);
             if (root == null) {
-                mRoots.putAll(
-                        authority, loadRootsForAuthority(mContext.getContentResolver(), authority));
+                mRoots.putAll(authority,
+                        loadRootsForAuthority(mContext.getContentResolver(), authority, false));
                 root = getRootLocked(authority, rootId);
             }
             return root;
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
index 4acf85e..73ce0e1 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
@@ -1084,7 +1084,7 @@
         }
 
         // Make all items draggable.
-        view.setOnLongClickListener(mDragHelper);
+        view.setOnLongClickListener(onLongClickListener);
     }
 
     private View.OnDragListener mOnDragListener = new View.OnDragListener() {
@@ -1387,9 +1387,10 @@
         }
     }
 
-    private DragStartHelper mDragHelper = new DragStartHelper(null) {
+    private DragStartHelper.OnDragStartListener mOnDragStartListener =
+            new DragStartHelper.OnDragStartListener() {
         @Override
-        protected boolean onDragStart(View v) {
+        public boolean onDragStart(View v, DragStartHelper helper) {
             if (isSelected(getModelId(v))) {
                 List<DocumentInfo> docs = getDraggableDocuments(v);
                 if (docs.isEmpty()) {
@@ -1409,6 +1410,15 @@
         }
     };
 
+    private DragStartHelper mDragHelper = new DragStartHelper(null, mOnDragStartListener);
+
+    private View.OnLongClickListener onLongClickListener = new View.OnLongClickListener() {
+        @Override
+        public boolean onLongClick(View v) {
+            return mDragHelper.onLongClick(v);
+        }
+    };
+
     // Previously we listened to events with one class, only to bounce them forward
     // to GestureDetector. We're still doing that here, but with a single class
     // that reduces overall complexity in our glue code.
@@ -1439,7 +1449,7 @@
 
             // Detect drag events. When a drag is detected, intercept the rest of the gesture.
             View itemView = rv.findChildViewUnder(e.getX(), e.getY());
-            if (itemView != null && mDragHelper.handleTouch(itemView,  e)) {
+            if (itemView != null && mDragHelper.onTouch(itemView,  e)) {
                 return true;
             }
             // Forward unhandled events to the GestureDetector.
@@ -1451,7 +1461,7 @@
         @Override
         public void onTouchEvent(RecyclerView rv, MotionEvent e) {
             View itemView = rv.findChildViewUnder(e.getX(), e.getY());
-            mDragHelper.handleTouch(itemView,  e);
+            mDragHelper.onTouch(itemView,  e);
             // Note: even though this event is being handled as part of a drag gesture, continue
             // forwarding to the GestureDetector. The detector needs to see the entire cluster of
             // events in order to properly interpret gestures.
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java
index 884abbb..73aa366 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/RenameDocumentFragment.java
@@ -44,6 +44,7 @@
 
 import com.android.documentsui.BaseActivity;
 import com.android.documentsui.DocumentsApplication;
+import com.android.documentsui.Metrics;
 import com.android.documentsui.R;
 import com.android.documentsui.Shared;
 import com.android.documentsui.Snackbars;
@@ -227,11 +228,13 @@
 
         @Override
         protected void onPostExecute(DocumentInfo result) {
-            if (result == null) {
+            if (result != null) {
+                Metrics.logRenameFileOperation(getContext());
+            } else {
                 Snackbars.makeSnackbar(mActivity, R.string.rename_error, Snackbar.LENGTH_SHORT)
                         .show();
+                Metrics.logRenameFileError(getContext());
             }
-
             mActivity.setPending(false);
         }
     }
diff --git a/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java b/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
index 9ed2abf..f10af43 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/services/CopyJob.java
@@ -45,6 +45,8 @@
 import android.os.RemoteException;
 import android.provider.DocumentsContract;
 import android.provider.DocumentsContract.Document;
+import android.system.ErrnoException;
+import android.system.Os;
 import android.text.format.DateUtils;
 import android.util.Log;
 import android.webkit.MimeTypeMap;
@@ -451,7 +453,7 @@
         ParcelFileDescriptor srcFile = null;
         ParcelFileDescriptor dstFile = null;
         InputStream in = null;
-        OutputStream out = null;
+        ParcelFileDescriptor.AutoCloseOutputStream out = null;
         boolean success = false;
 
         try {
@@ -502,6 +504,8 @@
                     makeCopyProgress(len);
                 }
 
+                // Need to invoke IoUtils.close explicitly to avoid from ignoring errors at flush.
+                IoUtils.close(dstFile.getFileDescriptor());
                 srcFile.checkError();
             } catch (IOException e) {
                 throw new ResourceException(
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
index b1d42e7..a7e4e12 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -464,7 +464,7 @@
         return 0;
     }
 
-    private int getLayoutIdFor(SecurityMode securityMode) {
+    protected int getLayoutIdFor(SecurityMode securityMode) {
         switch (securityMode) {
             case Pattern: return R.layout.keyguard_pattern_view;
             case PIN: return R.layout.keyguard_pin_view;
diff --git a/packages/MtpDocumentsProvider/jni/com_android_mtp_AppFuse.cpp b/packages/MtpDocumentsProvider/jni/com_android_mtp_AppFuse.cpp
index 1d4ed1d..eb96015 100644
--- a/packages/MtpDocumentsProvider/jni/com_android_mtp_AppFuse.cpp
+++ b/packages/MtpDocumentsProvider/jni/com_android_mtp_AppFuse.cpp
@@ -52,6 +52,8 @@
 static jmethodID app_fuse_get_file_size;
 static jmethodID app_fuse_read_object_bytes;
 static jmethodID app_fuse_write_object_bytes;
+static jmethodID app_fuse_flush_file_handle;
+static jmethodID app_fuse_close_file_handle;
 static jfieldID app_fuse_buffer;
 
 // NOTE:
@@ -307,7 +309,8 @@
         const uint32_t size = in->size;
         const void* const buffer = reinterpret_cast<const uint8_t*>(in) + sizeof(fuse_write_in);
         uint32_t written_size;
-        const int result = write_object_bytes(it->second, offset, size, buffer, &written_size);
+        const int result = write_object_bytes(
+                in->fh, it->second, offset, size, buffer, &written_size);
         if (result < 0) {
             return result;
         }
@@ -320,13 +323,13 @@
                             const fuse_release_in* in,
                             FuseResponse<void>* /* out */) {
         handles_.erase(in->fh);
-        return 0;
+        return env_->CallIntMethod(self_, app_fuse_close_file_handle, file_handle_to_jlong(in->fh));
     }
 
     int handle_fuse_flush(const fuse_in_header& /* header */,
-                          const void* /* in */,
+                          const fuse_flush_in* in,
                           FuseResponse<void>* /* out */) {
-        return 0;
+        return env_->CallIntMethod(self_, app_fuse_flush_file_handle, file_handle_to_jlong(in->fh));
     }
 
     template <typename T, typename S>
@@ -382,8 +385,10 @@
         return read_size;
     }
 
-    int write_object_bytes(int inode, uint64_t offset, uint32_t size, const void* buffer,
-                           uint32_t* written_size) {
+    int write_object_bytes(uint64_t handle, int inode, uint64_t offset, uint32_t size,
+                           const void* buffer, uint32_t* written_size) {
+        static_assert(sizeof(uint64_t) <= sizeof(jlong),
+                      "jlong must be able to express any uint64_t values");
         ScopedLocalRef<jbyteArray> array(
                 env_,
                 static_cast<jbyteArray>(env_->GetObjectField(self_, app_fuse_buffer)));
@@ -394,15 +399,28 @@
             }
             memcpy(bytes.get(), buffer, size);
         }
-        *written_size = env_->CallIntMethod(
-                self_, app_fuse_write_object_bytes, inode, offset, size, array.get());
-        if (env_->ExceptionCheck()) {
-            env_->ExceptionClear();
-            return -EIO;
+        const int result = env_->CallIntMethod(
+                self_,
+                app_fuse_write_object_bytes,
+                file_handle_to_jlong(handle),
+                inode,
+                offset,
+                size,
+                array.get());
+        if (result < 0) {
+            return result;
         }
+        *written_size = result;
         return 0;
     }
 
+    static jlong file_handle_to_jlong(uint64_t handle) {
+        static_assert(
+                sizeof(uint64_t) <= sizeof(jlong),
+                "jlong must be able to express any uint64_t values");
+        return static_cast<jlong>(handle);
+    }
+
     static void fuse_reply(int fd, int unique, int reply_code, void* reply_data,
                            size_t reply_size) {
         // Don't send any data for error case.
@@ -511,15 +529,21 @@
         return -1;
     }
 
-    app_fuse_buffer = env->GetFieldID(app_fuse_class, "mBuffer", "[B");
-    if (app_fuse_buffer == nullptr) {
-        ALOGE("Can't find mBuffer");
+    app_fuse_write_object_bytes = env->GetMethodID(app_fuse_class, "writeObjectBytes", "(JIJI[B)I");
+    if (app_fuse_write_object_bytes == nullptr) {
+        ALOGE("Can't find writeObjectBytes");
         return -1;
     }
 
-    app_fuse_write_object_bytes = env->GetMethodID(app_fuse_class, "writeObjectBytes", "(IJI[B)I");
-    if (app_fuse_write_object_bytes == nullptr) {
-        ALOGE("Can't find getWriteObjectBytes");
+    app_fuse_flush_file_handle = env->GetMethodID(app_fuse_class, "flushFileHandle", "(J)I");
+    if (app_fuse_flush_file_handle == nullptr) {
+        ALOGE("Can't find flushFileHandle");
+        return -1;
+    }
+
+    app_fuse_close_file_handle = env->GetMethodID(app_fuse_class, "closeFileHandle", "(J)I");
+    if (app_fuse_close_file_handle == nullptr) {
+        ALOGE("Can't find closeFileHandle");
         return -1;
     }
 
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/AppFuse.java b/packages/MtpDocumentsProvider/src/com/android/mtp/AppFuse.java
index 777dc60..88858a8 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/AppFuse.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/AppFuse.java
@@ -20,6 +20,7 @@
 import android.os.ParcelFileDescriptor;
 import android.os.Process;
 import android.os.storage.StorageManager;
+import android.system.ErrnoException;
 import android.system.OsConstants;
 import android.util.Log;
 import com.android.internal.annotations.VisibleForTesting;
@@ -34,6 +35,8 @@
         System.loadLibrary("appfuse_jni");
     }
 
+    private static final boolean DEBUG = false;
+
     /**
      * Max read amount specified at the FUSE kernel implementation.
      * The value is copied from sdcard.c.
@@ -94,7 +97,8 @@
     public ParcelFileDescriptor openFile(int i, int mode) throws FileNotFoundException {
         Preconditions.checkArgument(
                 mode == ParcelFileDescriptor.MODE_READ_ONLY ||
-                mode == ParcelFileDescriptor.MODE_WRITE_ONLY);
+                mode == (ParcelFileDescriptor.MODE_WRITE_ONLY |
+                         ParcelFileDescriptor.MODE_TRUNCATE));
         return ParcelFileDescriptor.open(new File(
                 getMountPoint(),
                 Integer.toString(i)),
@@ -127,6 +131,7 @@
 
         /**
          * Handles writing bytes for the give inode.
+         * @param fileHandle
          * @param inode
          * @param offset Offset for file bytes.
          * @param size Size for file bytes.
@@ -134,7 +139,23 @@
          * @return Number of read bytes. Must not be negative.
          * @throws IOException
          */
-        int writeObjectBytes(int inode, long offset, int size, byte[] bytes) throws IOException;
+        int writeObjectBytes(long fileHandle, int inode, long offset, int size, byte[] bytes)
+                throws IOException, ErrnoException;
+
+        /**
+         * Flushes bytes for file handle.
+         * @param fileHandle
+         * @throws IOException
+         * @throws ErrnoException
+         */
+        void flushFileHandle(long fileHandle) throws IOException, ErrnoException;
+
+        /**
+         * Closes file handle.
+         * @param fileHandle
+         * @throws IOException
+         */
+        void closeFileHandle(long fileHandle) throws IOException, ErrnoException;
     }
 
     @UsedByNative("com_android_mtp_AppFuse.cpp")
@@ -142,10 +163,8 @@
     private long getFileSize(int inode) {
         try {
             return mCallback.getFileSize(inode);
-        } catch (FileNotFoundException e) {
-            return -OsConstants.ENOENT;
-        } catch (UnsupportedOperationException e) {
-            return -OsConstants.ENOTSUP;
+        } catch (Exception error) {
+            return -getErrnoFromException(error);
         }
     }
 
@@ -159,20 +178,62 @@
             // It's OK to share the same mBuffer among requests because the requests are processed
             // by AppFuseMessageThread sequentially.
             return mCallback.readObjectBytes(inode, offset, size, mBuffer);
-        } catch (IOException e) {
-            return -OsConstants.EIO;
-        } catch (UnsupportedOperationException e) {
-            return -OsConstants.ENOTSUP;
+        } catch (Exception error) {
+            return -getErrnoFromException(error);
         }
     }
 
     @UsedByNative("com_android_mtp_AppFuse.cpp")
     @WorkerThread
-    private /* unsgined */ int writeObjectBytes(int inode,
+    private /* unsgined */ int writeObjectBytes(long fileHandler,
+                                                int inode,
                                                 /* unsigned */ long offset,
                                                 /* unsigned */ int size,
-                                                byte[] bytes) throws IOException {
-        return mCallback.writeObjectBytes(inode, offset, size, bytes);
+                                                byte[] bytes) {
+        try {
+            return mCallback.writeObjectBytes(fileHandler, inode, offset, size, bytes);
+        } catch (Exception error) {
+            return -getErrnoFromException(error);
+        }
+    }
+
+    @UsedByNative("com_android_mtp_AppFuse.cpp")
+    @WorkerThread
+    private int flushFileHandle(long fileHandle) {
+        try {
+            mCallback.flushFileHandle(fileHandle);
+            return 0;
+        } catch (Exception error) {
+            return -getErrnoFromException(error);
+        }
+    }
+
+    @UsedByNative("com_android_mtp_AppFuse.cpp")
+    @WorkerThread
+    private int closeFileHandle(long fileHandle) {
+        try {
+            mCallback.closeFileHandle(fileHandle);
+            return 0;
+        } catch (Exception error) {
+            return -getErrnoFromException(error);
+        }
+    }
+
+    private static int getErrnoFromException(Exception error) {
+        if (DEBUG) {
+            Log.e(MtpDocumentsProvider.TAG, "AppFuse callbacks", error);
+        }
+        if (error instanceof FileNotFoundException) {
+            return OsConstants.ENOENT;
+        } else if (error instanceof IOException) {
+            return OsConstants.EIO;
+        } else if (error instanceof UnsupportedOperationException) {
+            return OsConstants.ENOTSUP;
+        } else if (error instanceof IllegalArgumentException) {
+            return OsConstants.EINVAL;
+        } else {
+            return OsConstants.EIO;
+        }
     }
 
     private native boolean native_start_app_fuse_loop(int fd);
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
index 9f64046ce..50781bf 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
@@ -17,6 +17,7 @@
 package com.android.mtp;
 
 import android.content.ContentResolver;
+import android.content.Context;
 import android.content.UriPermission;
 import android.content.res.AssetFileDescriptor;
 import android.content.res.Resources;
@@ -38,11 +39,16 @@
 import android.provider.DocumentsContract;
 import android.provider.DocumentsProvider;
 import android.provider.Settings;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.system.OsConstants;
 import android.util.Log;
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 
+import java.io.File;
+import java.io.FileDescriptor;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.HashMap;
@@ -82,6 +88,7 @@
     private MtpDatabase mDatabase;
     private AppFuse mAppFuse;
     private ServiceIntentSender mIntentSender;
+    private Context mContext;
 
     /**
      * Provides singleton instance to MtpDocumentsService.
@@ -93,6 +100,7 @@
     @Override
     public boolean onCreate() {
         sSingleton = this;
+        mContext = getContext();
         mResources = getContext().getResources();
         mMtpManager = new MtpManager(getContext());
         mResolver = getContext().getContentResolver();
@@ -137,12 +145,14 @@
 
     @VisibleForTesting
     boolean onCreateForTesting(
+            Context context,
             Resources resources,
             MtpManager mtpManager,
             ContentResolver resolver,
             MtpDatabase database,
             StorageManager storageManager,
             ServiceIntentSender intentSender) {
+        mContext = context;
         mResources = resources;
         mMtpManager = mtpManager;
         mResolver = resolver;
@@ -232,43 +242,43 @@
         try {
             openDevice(identifier.mDeviceId);
             final MtpDeviceRecord device = getDeviceToolkit(identifier.mDeviceId).mDeviceRecord;
-            switch (mode) {
-                case "r":
-                    long fileSize;
-                    try {
-                        fileSize = getFileSize(documentId);
-                    } catch (UnsupportedOperationException exception) {
-                        fileSize = -1;
-                    }
-                    // MTP getPartialObject operation does not support files that are larger than
-                    // 4GB. Fallback to non-seekable file descriptor.
-                    if (MtpDeviceRecord.isPartialReadSupported(
-                            device.operationsSupported, fileSize)) {
-                        return mAppFuse.openFile(
-                                Integer.parseInt(documentId), ParcelFileDescriptor.MODE_READ_ONLY);
-                    } else {
-                        return getPipeManager(identifier).readDocument(mMtpManager, identifier);
-                    }
-                case "w":
-                    // TODO: Clear the parent document loader task (if exists) and call notify
-                    // when writing is completed.
-                    if (MtpDeviceRecord.isWritingSupported(device.operationsSupported)) {
-                        return getPipeManager(identifier).writeDocument(
-                                getContext(), mMtpManager, identifier, device.operationsSupported);
-                    } else {
-                        throw new UnsupportedOperationException(
-                                "The device does not support writing operation.");
-                    }
-                case "rw":
-                    // TODO: Add support for "rw" mode.
+            // Turn off MODE_CREATE because openDocument does not allow to create new files.
+            final int modeFlag =
+                    ParcelFileDescriptor.parseMode(mode) & ~ParcelFileDescriptor.MODE_CREATE;
+            if ((modeFlag & ParcelFileDescriptor.MODE_READ_ONLY) != 0) {
+                long fileSize;
+                try {
+                    fileSize = getFileSize(documentId);
+                } catch (UnsupportedOperationException exception) {
+                    fileSize = -1;
+                }
+                if (MtpDeviceRecord.isPartialReadSupported(
+                        device.operationsSupported, fileSize)) {
+                    return mAppFuse.openFile(Integer.parseInt(documentId), modeFlag);
+                } else {
+                    // If getPartialObject{|64} are not supported for the device, returns
+                    // non-seekable pipe FD instead.
+                    return getPipeManager(identifier).readDocument(mMtpManager, identifier);
+                }
+            } else if ((modeFlag & ParcelFileDescriptor.MODE_WRITE_ONLY) != 0) {
+                // TODO: Clear the parent document loader task (if exists) and call notify
+                // when writing is completed.
+                if (MtpDeviceRecord.isWritingSupported(device.operationsSupported)) {
+                    return mAppFuse.openFile(Integer.parseInt(documentId), modeFlag);
+                } else {
                     throw new UnsupportedOperationException(
-                            "The provider does not support 'rw' mode.");
-                default:
-                    throw new IllegalArgumentException("Unknown mode for openDocument: " + mode);
+                            "The device does not support writing operation.");
+                }
+            } else {
+                // TODO: Add support for "rw" mode.
+                throw new UnsupportedOperationException("The provider does not support 'rw' mode.");
             }
+        } catch (FileNotFoundException | RuntimeException error) {
+            Log.e(MtpDocumentsProvider.TAG, "openDocument", error);
+            throw error;
         } catch (IOException error) {
             Log.e(MtpDocumentsProvider.TAG, "openDocument", error);
-            throw new FileNotFoundException(error.getMessage());
+            throw new IllegalStateException(error);
         }
     }
 
@@ -595,6 +605,13 @@
     }
 
     private class AppFuseCallback implements AppFuse.Callback {
+        private final Map<Long, MtpFileWriter> mWriters = new HashMap<>();
+
+        @Override
+        public long getFileSize(int inode) throws FileNotFoundException {
+            return MtpDocumentsProvider.this.getFileSize(String.valueOf(inode));
+        }
+
         @Override
         public long readObjectBytes(
                 int inode, long offset, long size, byte[] buffer) throws IOException {
@@ -617,15 +634,43 @@
         }
 
         @Override
-        public long getFileSize(int inode) throws FileNotFoundException {
-            return MtpDocumentsProvider.this.getFileSize(String.valueOf(inode));
+        public int writeObjectBytes(
+                long fileHandle, int inode, long offset, int size, byte[] bytes)
+                throws IOException, ErrnoException {
+            final MtpFileWriter writer;
+            if (mWriters.containsKey(fileHandle)) {
+                writer = mWriters.get(fileHandle);
+            } else {
+                writer = new MtpFileWriter(mContext, String.valueOf(inode));
+                mWriters.put(fileHandle, writer);
+            }
+            return writer.write(offset, size, bytes);
         }
 
         @Override
-        public int writeObjectBytes(int inode, long offset, int size, byte[] bytes)
-                throws IOException {
-            // TODO: Implement it.
-            throw new IOException();
+        public void flushFileHandle(long fileHandle) throws IOException, ErrnoException {
+            final MtpFileWriter writer = mWriters.get(fileHandle);
+            if (writer == null) {
+                // File handle for reading.
+                return;
+            }
+            final MtpDeviceRecord device = getDeviceToolkit(
+                    mDatabase.createIdentifier(writer.getDocumentId()).mDeviceId).mDeviceRecord;
+            writer.flush(mMtpManager, mDatabase, device.operationsSupported);
+        }
+
+        @Override
+        public void closeFileHandle(long fileHandle) throws IOException, ErrnoException {
+            final MtpFileWriter writer = mWriters.get(fileHandle);
+            if (writer == null) {
+                // File handle for reading.
+                return;
+            }
+            try {
+                writer.close();
+            } finally {
+                mWriters.remove(fileHandle);
+            }
         }
     }
 }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpFileWriter.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpFileWriter.java
new file mode 100644
index 0000000..3e1bedc
--- /dev/null
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpFileWriter.java
@@ -0,0 +1,108 @@
+/*
+ * 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.mtp;
+
+import android.content.Context;
+import android.mtp.MtpObjectInfo;
+import android.os.ParcelFileDescriptor;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.system.OsConstants;
+
+import com.android.internal.util.Preconditions;
+
+import java.io.File;
+import java.io.IOException;
+
+class MtpFileWriter implements AutoCloseable {
+    final ParcelFileDescriptor mCacheFd;
+    final String mDocumentId;
+    boolean mDirty;
+
+    MtpFileWriter(Context context, String documentId) throws IOException {
+        mDocumentId = documentId;
+        mDirty = false;
+        final File tempFile = File.createTempFile("mtp", "tmp", context.getCacheDir());
+        mCacheFd = ParcelFileDescriptor.open(
+                tempFile,
+                ParcelFileDescriptor.MODE_READ_WRITE |
+                ParcelFileDescriptor.MODE_TRUNCATE |
+                ParcelFileDescriptor.MODE_CREATE);
+        tempFile.delete();
+    }
+
+    String getDocumentId() {
+        return mDocumentId;
+    }
+
+    int write(long offset, int size, byte[] bytes) throws IOException, ErrnoException {
+        Preconditions.checkArgumentNonnegative(offset, "offset");
+        Preconditions.checkArgumentNonnegative(size, "size");
+        Preconditions.checkArgument(size <= bytes.length);
+        if (size == 0) {
+            return 0;
+        }
+        mDirty = true;
+        Os.lseek(mCacheFd.getFileDescriptor(), offset, OsConstants.SEEK_SET);
+        return Os.write(mCacheFd.getFileDescriptor(), bytes, 0, size);
+    }
+
+    void flush(MtpManager manager, MtpDatabase database, int[] operationsSupported)
+            throws IOException, ErrnoException {
+        // Skip unnecessary flush.
+        if (!mDirty) {
+            return;
+        }
+
+        // Get the placeholder object info.
+        final Identifier identifier = database.createIdentifier(mDocumentId);
+        final MtpObjectInfo placeholderObjectInfo =
+                manager.getObjectInfo(identifier.mDeviceId, identifier.mObjectHandle);
+
+        // Delete the target object info if it already exists (as a placeholder).
+        manager.deleteDocument(identifier.mDeviceId, identifier.mObjectHandle);
+
+        // Create the target object info with a correct file size and upload the file.
+        final long size = Os.lseek(mCacheFd.getFileDescriptor(), 0, OsConstants.SEEK_END);
+        final MtpObjectInfo targetObjectInfo = new MtpObjectInfo.Builder(placeholderObjectInfo)
+                .setCompressedSize(size)
+                .build();
+
+        Os.lseek(mCacheFd.getFileDescriptor(), 0, OsConstants.SEEK_SET);
+        final int newObjectHandle = manager.createDocument(
+                identifier.mDeviceId, targetObjectInfo, mCacheFd);
+
+        final MtpObjectInfo newObjectInfo = manager.getObjectInfo(
+                identifier.mDeviceId, newObjectHandle);
+        final Identifier parentIdentifier =
+                database.getParentIdentifier(identifier.mDocumentId);
+        database.updateObject(
+                identifier.mDocumentId,
+                identifier.mDeviceId,
+                parentIdentifier.mDocumentId,
+                operationsSupported,
+                newObjectInfo,
+                size);
+
+        mDirty = false;
+    }
+
+    @Override
+    public void close() throws IOException {
+        mCacheFd.close();
+    }
+}
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java b/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
index 1520f3b..795bbc1 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
@@ -16,13 +16,9 @@
 
 package com.android.mtp;
 
-import android.content.Context;
-import android.mtp.MtpObjectInfo;
 import android.os.ParcelFileDescriptor;
 import android.util.Log;
 
-import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
@@ -52,15 +48,6 @@
         return task.getReadingFileDescriptor();
     }
 
-    ParcelFileDescriptor writeDocument(Context context, MtpManager model, Identifier identifier,
-                                       int[] operationsSupported)
-            throws IOException {
-        final Task task = new WriteDocumentTask(
-                context, model, identifier, operationsSupported, mDatabase);
-        mExecutor.execute(task);
-        return task.getWritingFileDescriptor();
-    }
-
     ParcelFileDescriptor readThumbnail(MtpManager model, Identifier identifier) throws IOException {
         final Task task = new GetThumbnailTask(model, identifier);
         mExecutor.execute(task);
@@ -81,10 +68,6 @@
         ParcelFileDescriptor getReadingFileDescriptor() {
             return mDescriptors[0];
         }
-
-        ParcelFileDescriptor getWritingFileDescriptor() {
-            return mDescriptors[1];
-        }
     }
 
     private static class ImportFileTask extends Task {
@@ -108,85 +91,6 @@
         }
     }
 
-    private static class WriteDocumentTask extends Task {
-        private final Context mContext;
-        private final MtpDatabase mDatabase;
-        private final int[] mOperationsSupported;
-
-        WriteDocumentTask(Context context,
-                          MtpManager model,
-                          Identifier identifier,
-                          int[] supportedOperations,
-                          MtpDatabase database)
-                throws IOException {
-            super(model, identifier);
-            mContext = context;
-            mDatabase = database;
-            mOperationsSupported = supportedOperations;
-        }
-
-        @Override
-        public void run() {
-            File tempFile = null;
-            try {
-                // Obtain a temporary file and copy the data to it.
-                tempFile = File.createTempFile("mtp", "tmp", mContext.getCacheDir());
-                try (
-                    final FileOutputStream tempOutputStream =
-                            new ParcelFileDescriptor.AutoCloseOutputStream(
-                                    ParcelFileDescriptor.open(
-                                            tempFile, ParcelFileDescriptor.MODE_WRITE_ONLY));
-                    final ParcelFileDescriptor.AutoCloseInputStream inputStream =
-                            new ParcelFileDescriptor.AutoCloseInputStream(mDescriptors[0])
-                ) {
-                    final byte[] buffer = new byte[32 * 1024];
-                    int bytes;
-                    while ((bytes = inputStream.read(buffer)) != -1) {
-                        mDescriptors[0].checkError();
-                        tempOutputStream.write(buffer, 0, bytes);
-                    }
-                    tempOutputStream.flush();
-                }
-
-                // Get the placeholder object info.
-                final MtpObjectInfo placeholderObjectInfo =
-                        mManager.getObjectInfo(mIdentifier.mDeviceId, mIdentifier.mObjectHandle);
-
-                // Delete the target object info if it already exists (as a placeholder).
-                mManager.deleteDocument(mIdentifier.mDeviceId, mIdentifier.mObjectHandle);
-
-                // Create the target object info with a correct file size and upload the file.
-                final MtpObjectInfo targetObjectInfo =
-                        new MtpObjectInfo.Builder(placeholderObjectInfo)
-                                .setCompressedSize(tempFile.length())
-                                .build();
-                final ParcelFileDescriptor tempInputDescriptor = ParcelFileDescriptor.open(
-                        tempFile, ParcelFileDescriptor.MODE_READ_ONLY);
-                final int newObjectHandle = mManager.createDocument(
-                        mIdentifier.mDeviceId, targetObjectInfo, tempInputDescriptor);
-
-                final MtpObjectInfo newObjectInfo = mManager.getObjectInfo(
-                        mIdentifier.mDeviceId, newObjectHandle);
-                final Identifier parentIdentifier =
-                        mDatabase.getParentIdentifier(mIdentifier.mDocumentId);
-                mDatabase.updateObject(
-                        mIdentifier.mDocumentId,
-                        mIdentifier.mDeviceId,
-                        parentIdentifier.mDocumentId,
-                        mOperationsSupported,
-                        newObjectInfo,
-                        tempFile.length());
-            } catch (IOException error) {
-                Log.w(MtpDocumentsProvider.TAG,
-                        "Failed to send a file because of: " + error.getMessage());
-            } finally {
-                if (tempFile != null) {
-                    tempFile.delete();
-                }
-            }
-        }
-    }
-
     private static class GetThumbnailTask extends Task {
         GetThumbnailTask(MtpManager model, Identifier identifier) throws IOException {
             super(model, identifier);
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/AppFuseTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/AppFuseTest.java
index 3b92506..e421de71 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/AppFuseTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/AppFuseTest.java
@@ -23,6 +23,8 @@
 import android.test.AndroidTestCase;
 import android.test.suitebuilder.annotation.MediumTest;
 
+import libcore.io.IoUtils;
+
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -143,7 +145,8 @@
                     }
 
                     @Override
-                    public int writeObjectBytes(int inode, long offset, int size, byte[] bytes) {
+                    public int writeObjectBytes(
+                            long fileHandle, int inode, long offset, int size, byte[] bytes) {
                         for (int i = 0; i < size; i++) {
                             resultBytes[(int)(offset + i)] = bytes[i];
                         }
@@ -152,7 +155,7 @@
                 });
         appFuse.mount(storageManager);
         final ParcelFileDescriptor fd = appFuse.openFile(
-                INODE, ParcelFileDescriptor.MODE_WRITE_ONLY);
+                INODE, ParcelFileDescriptor.MODE_WRITE_ONLY | ParcelFileDescriptor.MODE_TRUNCATE);
         try (final ParcelFileDescriptor.AutoCloseOutputStream stream =
                 new ParcelFileDescriptor.AutoCloseOutputStream(fd)) {
             stream.write('a');
@@ -182,7 +185,7 @@
                 });
         appFuse.mount(storageManager);
         final ParcelFileDescriptor fd = appFuse.openFile(
-                INODE, ParcelFileDescriptor.MODE_WRITE_ONLY);
+                INODE, ParcelFileDescriptor.MODE_WRITE_ONLY | ParcelFileDescriptor.MODE_TRUNCATE);
         try (final ParcelFileDescriptor.AutoCloseOutputStream stream =
                 new ParcelFileDescriptor.AutoCloseOutputStream(fd)) {
             stream.write('a');
@@ -192,6 +195,46 @@
         appFuse.close();
     }
 
+    public void testWriteFile_flushError() throws IOException {
+        final StorageManager storageManager = getContext().getSystemService(StorageManager.class);
+        final int INODE = 10;
+        final AppFuse appFuse = new AppFuse(
+                "test",
+                new TestCallback() {
+                    @Override
+                    public long getFileSize(int inode) throws FileNotFoundException {
+                        if (inode != INODE) {
+                            throw new FileNotFoundException();
+                        }
+                        return 5;
+                    }
+
+                    @Override
+                    public int writeObjectBytes(
+                            long fileHandle, int inode, long offset, int size, byte[] bytes) {
+                        return size;
+                    }
+
+                    @Override
+                    public void flushFileHandle(long fileHandle) throws IOException {
+                        throw new IOException();
+                    }
+                });
+        appFuse.mount(storageManager);
+        final ParcelFileDescriptor fd = appFuse.openFile(
+                INODE, ParcelFileDescriptor.MODE_WRITE_ONLY | ParcelFileDescriptor.MODE_TRUNCATE);
+        try (final ParcelFileDescriptor.AutoCloseOutputStream stream =
+                new ParcelFileDescriptor.AutoCloseOutputStream(fd)) {
+            stream.write('a');
+            try {
+                IoUtils.close(fd.getFileDescriptor());
+                fail();
+            } catch (IOException e) {
+            }
+        }
+        appFuse.close();
+    }
+
     private static class TestCallback implements AppFuse.Callback {
         @Override
         public long getFileSize(int inode) throws FileNotFoundException {
@@ -205,9 +248,15 @@
         }
 
         @Override
-        public int writeObjectBytes(int inode, long offset, int size, byte[] bytes)
+        public int writeObjectBytes(long fileHandle, int inode, long offset, int size, byte[] bytes)
                 throws IOException {
             throw new IOException();
         }
+
+        @Override
+        public void flushFileHandle(long fileHandle) throws IOException {}
+
+        @Override
+        public void closeFileHandle(long fileHandle) {}
     }
 }
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
index 0de761cb..9ed15c8 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
@@ -21,6 +21,7 @@
 import android.mtp.MtpObjectInfo;
 import android.net.Uri;
 import android.os.ParcelFileDescriptor;
+import android.os.ParcelFileDescriptor.AutoCloseOutputStream;
 import android.os.storage.StorageManager;
 import android.provider.DocumentsContract.Document;
 import android.provider.DocumentsContract.Root;
@@ -533,6 +534,30 @@
         }
     }
 
+    public void testOpenDocument_writing() throws Exception {
+        setupProvider(MtpDatabaseConstants.FLAG_DATABASE_IN_MEMORY);
+        setupRoots(0, new MtpRoot[] {
+                new MtpRoot(0, 0, "Storage", 0, 0, "")
+        });
+        final String documentId = mProvider.createDocument("2", "text/plain", "test.txt");
+        {
+            final ParcelFileDescriptor fd = mProvider.openDocument(documentId, "w", null);
+            try (ParcelFileDescriptor.AutoCloseOutputStream stream =
+                    new ParcelFileDescriptor.AutoCloseOutputStream(fd)) {
+                stream.write("Hello".getBytes());
+            }
+        }
+        {
+            final ParcelFileDescriptor fd = mProvider.openDocument(documentId, "r", null);
+            try (ParcelFileDescriptor.AutoCloseInputStream stream =
+                    new ParcelFileDescriptor.AutoCloseInputStream(fd)) {
+                final byte[] bytes = new byte[5];
+                stream.read(bytes);
+                assertTrue(Arrays.equals("Hello".getBytes(), bytes));
+            }
+        }
+    }
+
     public void testBusyDevice() throws Exception {
         mMtpManager = new TestMtpManager(getContext()) {
             @Override
@@ -740,6 +765,7 @@
         mProvider = new MtpDocumentsProvider();
         final StorageManager storageManager = getContext().getSystemService(StorageManager.class);
         assertTrue(mProvider.onCreateForTesting(
+                getContext(),
                 mResources,
                 mMtpManager,
                 mResolver,
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
index 8611797..53dc3db 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
@@ -16,10 +16,7 @@
 
 package com.android.mtp;
 
-import android.database.Cursor;
-import android.mtp.MtpObjectInfo;
 import android.os.ParcelFileDescriptor;
-import android.provider.DocumentsContract.Document;
 import android.test.AndroidTestCase;
 import android.test.suitebuilder.annotation.MediumTest;
 
@@ -66,64 +63,6 @@
         assertDescriptorError(descriptor);
     }
 
-    public void testWriteDocument_basic() throws Exception {
-        TestUtil.addTestDevice(mDatabase);
-        TestUtil.addTestStorage(mDatabase, "1");
-
-        final MtpObjectInfo info =
-                new MtpObjectInfo.Builder().setObjectHandle(1).setName("note.txt").build();
-        mDatabase.getMapper().startAddingDocuments("2");
-        mDatabase.getMapper().putChildDocuments(
-                0, "2", TestUtil.OPERATIONS_SUPPORTED,
-                new MtpObjectInfo[] { info },
-                new long[] { 0L });
-        mDatabase.getMapper().stopAddingDocuments("2");
-        // Create a placeholder file which should be replaced by a real file later.
-        mtpManager.setObjectInfo(0, info);
-
-        // Upload testing bytes.
-        final ParcelFileDescriptor descriptor = mPipeManager.writeDocument(
-                getContext(),
-                mtpManager,
-                new Identifier(0, 0, 1, "2", MtpDatabaseConstants.DOCUMENT_TYPE_OBJECT),
-                TestUtil.OPERATIONS_SUPPORTED);
-        final ParcelFileDescriptor.AutoCloseOutputStream outputStream =
-                new ParcelFileDescriptor.AutoCloseOutputStream(descriptor);
-        outputStream.write(HELLO_BYTES, 0, HELLO_BYTES.length);
-        outputStream.close();
-        mExecutor.shutdown();
-        assertTrue(mExecutor.awaitTermination(1000, TimeUnit.MILLISECONDS));
-
-        // Check if the placeholder file is removed.
-        try {
-            mtpManager.getObjectInfo(0, 1);
-            fail();  // The placeholder file has not been deleted.
-        } catch (IOException e) {
-            // Expected error, as the file is gone.
-        }
-
-        // Confirm that the target file is created.
-        final MtpObjectInfo targetDocument = mtpManager.getObjectInfo(
-                0, TestMtpManager.CREATED_DOCUMENT_HANDLE);
-        assertTrue(targetDocument != null);
-
-        // Confirm the object handle is updated.
-        try (final Cursor cursor = mDatabase.queryDocument(
-                "2", new String[] { MtpDatabaseConstants.COLUMN_OBJECT_HANDLE })) {
-            assertEquals(1, cursor.getCount());
-            cursor.moveToNext();
-            assertEquals(TestMtpManager.CREATED_DOCUMENT_HANDLE, cursor.getInt(0));
-        }
-
-        // Verify uploaded bytes.
-        final byte[] uploadedBytes = mtpManager.getImportFileBytes(
-                0, TestMtpManager.CREATED_DOCUMENT_HANDLE);
-        assertEquals(HELLO_BYTES.length, uploadedBytes.length);
-        for (int i = 0; i < HELLO_BYTES.length; i++) {
-            assertEquals(HELLO_BYTES[i], uploadedBytes[i]);
-        }
-    }
-
     public void testReadThumbnail_basic() throws Exception {
         mtpManager.setThumbnail(0, 1, HELLO_BYTES);
         final ParcelFileDescriptor descriptor = mPipeManager.readThumbnail(
diff --git a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
index 2d3935b..99145b7b 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/model/RemotePrintDocument.java
@@ -178,6 +178,8 @@
         }
         if (mState == STATE_FAILED) {
             Log.w(LOG_TAG, "Failed before start.");
+        } else if (mState == STATE_DESTROYED) {
+            Log.w(LOG_TAG, "Destroyed before start.");
         } else {
             if (mState != STATE_INITIAL) {
                 throw new IllegalStateException("Cannot start in state:" + stateToString(mState));
@@ -267,7 +269,7 @@
         }
         if (mState != STATE_STARTED && mState != STATE_UPDATED
                 && mState != STATE_FAILED && mState != STATE_CANCELING
-                && mState != STATE_CANCELED) {
+                && mState != STATE_CANCELED && mState != STATE_DESTROYED) {
             throw new IllegalStateException("Cannot finish in state:"
                     + stateToString(mState));
         }
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
index eebb60c..c1a3f86 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PageAdapter.java
@@ -206,6 +206,7 @@
             int documentPageCount, MediaSize mediaSize, Margins minMargins) {
         boolean documentChanged = false;
         boolean updatePreviewAreaAndPageSize = false;
+        boolean clearSelectedPages = false;
 
         // If the app does not tell how many pages are in the document we cannot
         // optimize and ask for all pages whose count we get from the renderer.
@@ -225,30 +226,41 @@
             }
         }
 
-        if (!Arrays.equals(mSelectedPages, selectedPages)) {
-            mSelectedPages = selectedPages;
-            mSelectedPageCount = PageRangeUtils.getNormalizedPageCount(
-                    mSelectedPages, documentPageCount);
-            setConfirmedPages(mSelectedPages, documentPageCount);
-            updatePreviewAreaAndPageSize = true;
-            documentChanged = true;
-        }
-
         if (mDocumentPageCount != documentPageCount) {
             mDocumentPageCount = documentPageCount;
             documentChanged = true;
+            clearSelectedPages = true;
         }
 
         if (mMediaSize == null || !mMediaSize.equals(mediaSize)) {
             mMediaSize = mediaSize;
             updatePreviewAreaAndPageSize = true;
             documentChanged = true;
+
+            clearSelectedPages = true;
         }
 
         if (mMinMargins == null || !mMinMargins.equals(minMargins)) {
             mMinMargins = minMargins;
             updatePreviewAreaAndPageSize = true;
             documentChanged = true;
+
+            clearSelectedPages = true;
+        }
+
+        if (clearSelectedPages) {
+            mSelectedPages = PageRange.ALL_PAGES_ARRAY;
+            mSelectedPageCount = documentPageCount;
+            setConfirmedPages(mSelectedPages, documentPageCount);
+            updatePreviewAreaAndPageSize = true;
+            documentChanged = true;
+        } else if (!Arrays.equals(mSelectedPages, selectedPages)) {
+            mSelectedPages = selectedPages;
+            mSelectedPageCount = PageRangeUtils.getNormalizedPageCount(
+                    mSelectedPages, documentPageCount);
+            setConfirmedPages(mSelectedPages, documentPageCount);
+            updatePreviewAreaAndPageSize = true;
+            documentChanged = true;
         }
 
         // If *all pages* is selected we need to convert that to absolute
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
index a24d664..dba6a8b 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/PrintActivity.java
@@ -128,8 +128,6 @@
 
     private static final boolean DEBUG = false;
 
-    public static final String INTENT_EXTRA_PRINTER_ID = "INTENT_EXTRA_PRINTER_ID";
-
     private static final String FRAGMENT_TAG = "FRAGMENT_TAG";
 
     private static final String HAS_PRINTED_PREF = "has_printed";
@@ -176,8 +174,6 @@
             "[\\s]*[0-9]+[\\-]?[\\s]*[0-9]*[\\s]*?(([,])"
                     + "[\\s]*[0-9]+[\\s]*[\\-]?[\\s]*[0-9]*[\\s]*|[\\s]*)+");
 
-    public static final PageRange[] ALL_PAGES_ARRAY = new PageRange[]{PageRange.ALL_PAGES};
-
     private boolean mIsOptionsUiBound = false;
 
     private final PrinterAvailabilityDetector mPrinterAvailabilityDetector =
@@ -597,14 +593,6 @@
 
     @Override
     public void onOptionsClosed() {
-        PageRange[] selectedPages = computeSelectedPages();
-        if (!Arrays.equals(mSelectedPages, selectedPages)) {
-            mSelectedPages = selectedPages;
-
-            // Update preview.
-            updatePrintPreviewController(false);
-        }
-
         // Make sure the IME is not on the way of preview as
         // the user may have used it to type copies or range.
         InputMethodManager imm = getSystemService(InputMethodManager.class);
@@ -717,21 +705,17 @@
 
     private void onSelectPrinterActivityResult(int resultCode, Intent data) {
         if (resultCode == RESULT_OK && data != null) {
-            PrinterId printerId = data.getParcelableExtra(INTENT_EXTRA_PRINTER_ID);
-            if (printerId != null) {
-                mDestinationSpinnerAdapter.ensurePrinterInVisibleAdapterPosition(printerId);
-                final int index = mDestinationSpinnerAdapter.getPrinterIndex(printerId);
-                if (index != AdapterView.INVALID_POSITION) {
-                    mDestinationSpinner.setSelection(index);
-                    return;
-                }
+            PrinterInfo printerInfo = data.getParcelableExtra(
+                    SelectPrinterActivity.INTENT_EXTRA_PRINTER);
+            if (printerInfo != null) {
+                mCurrentPrinter = printerInfo;
+                mDestinationSpinnerAdapter.ensurePrinterInVisibleAdapterPosition(printerInfo);
             }
         }
 
         if (mCurrentPrinter != null) {
-            PrinterId printerId = mCurrentPrinter.getId();
-            final int index = mDestinationSpinnerAdapter.getPrinterIndex(printerId);
-            mDestinationSpinner.setSelection(index);
+            // Trigger PrintersObserver.onChanged() to adjust selection back to current printer
+            mDestinationSpinnerAdapter.notifyDataSetChanged();
         }
     }
 
@@ -950,7 +934,7 @@
         mSelectedPages = selectedPages;
         mPrintJob.setPages(selectedPages);
 
-        if (Arrays.equals(selectedPages, ALL_PAGES_ARRAY)) {
+        if (Arrays.equals(selectedPages, PageRange.ALL_PAGES_ARRAY)) {
             if (mRangeOptionsSpinner.getSelectedItemPosition() != 0) {
                 mRangeOptionsSpinner.setSelection(0);
                 mPageRangeEditText.setText("");
@@ -1049,7 +1033,22 @@
         }
     }
 
+    /**
+     * Clear the selected page range and update the preview if needed.
+     */
+    private void clearPageRanges() {
+        mRangeOptionsSpinner.setSelection(0);
+        mPageRangeEditText.setError(null);
+        mPageRangeEditText.setText("");
+        mSelectedPages = PageRange.ALL_PAGES_ARRAY;
+
+        if (!Arrays.equals(mSelectedPages, mPrintPreviewController.getSelectedPages())) {
+            updatePrintPreviewController(false);
+        }
+    }
+
     private void updatePrintAttributesFromCapabilities(PrinterCapabilitiesInfo capabilities) {
+        boolean clearRanges = false;
         PrintAttributes defaults = capabilities.getDefaults();
 
         // Sort the media sizes based on the current locale.
@@ -1061,6 +1060,7 @@
         // Media size.
         MediaSize currMediaSize = attributes.getMediaSize();
         if (currMediaSize == null) {
+            clearRanges = true;
             attributes.setMediaSize(defaults.getMediaSize());
         } else {
             MediaSize newMediaSize = null;
@@ -1079,6 +1079,7 @@
             }
             // If we did not find the current media size fall back to default.
             if (newMediaSize == null) {
+                clearRanges = true;
                 newMediaSize = defaults.getMediaSize();
             }
 
@@ -1110,7 +1111,14 @@
         }
 
         // Margins.
+        if (!Objects.equals(attributes.getMinMargins(), defaults.getMinMargins())) {
+            clearRanges = true;
+        }
         attributes.setMinMargins(defaults.getMinMargins());
+
+        if (clearRanges) {
+            clearPageRanges();
+        }
     }
 
     private boolean updateDocument(boolean clearLastError) {
@@ -1262,6 +1270,7 @@
         // Page range
         mPageRangeTitle = (TextView) findViewById(R.id.page_range_title);
         mPageRangeEditText = (EditText) findViewById(R.id.page_range_edittext);
+        mPageRangeEditText.setVisibility(View.INVISIBLE);
         mPageRangeEditText.setOnFocusChangeListener(mSelectAllOnFocusListener);
         mPageRangeEditText.addTextChangedListener(new RangeTextWatcher());
 
@@ -1753,36 +1762,38 @@
         // Range options
         PrintDocumentInfo info = mPrintedDocument.getDocumentInfo().info;
         final int pageCount = getAdjustedPageCount(info);
-        if (info != null && pageCount > 0) {
-            if (pageCount == 1) {
-                mRangeOptionsSpinner.setEnabled(false);
-            } else {
-                mRangeOptionsSpinner.setEnabled(true);
-                if (mRangeOptionsSpinner.getSelectedItemPosition() > 0) {
-                    if (!mPageRangeEditText.isEnabled()) {
-                        mPageRangeEditText.setEnabled(true);
-                        mPageRangeEditText.setVisibility(View.VISIBLE);
-                        mPageRangeTitle.setVisibility(View.VISIBLE);
-                        mPageRangeEditText.requestFocus();
-                        InputMethodManager imm = (InputMethodManager)
-                                getSystemService(Context.INPUT_METHOD_SERVICE);
-                        imm.showSoftInput(mPageRangeEditText, 0);
-                    }
+        if (pageCount > 0) {
+            if (info != null) {
+                if (pageCount == 1) {
+                    mRangeOptionsSpinner.setEnabled(false);
                 } else {
-                    mPageRangeEditText.setEnabled(false);
-                    mPageRangeEditText.setVisibility(View.INVISIBLE);
-                    mPageRangeTitle.setVisibility(View.INVISIBLE);
+                    mRangeOptionsSpinner.setEnabled(true);
+                    if (mRangeOptionsSpinner.getSelectedItemPosition() > 0) {
+                        if (!mPageRangeEditText.isEnabled()) {
+                            mPageRangeEditText.setEnabled(true);
+                            mPageRangeEditText.setVisibility(View.VISIBLE);
+                            mPageRangeTitle.setVisibility(View.VISIBLE);
+                            mPageRangeEditText.requestFocus();
+                            InputMethodManager imm = (InputMethodManager)
+                                    getSystemService(Context.INPUT_METHOD_SERVICE);
+                            imm.showSoftInput(mPageRangeEditText, 0);
+                        }
+                    } else {
+                        mPageRangeEditText.setEnabled(false);
+                        mPageRangeEditText.setVisibility(View.INVISIBLE);
+                        mPageRangeTitle.setVisibility(View.INVISIBLE);
+                    }
                 }
+            } else {
+                if (mRangeOptionsSpinner.getSelectedItemPosition() != 0) {
+                    mRangeOptionsSpinner.setSelection(0);
+                    mPageRangeEditText.setText("");
+                }
+                mRangeOptionsSpinner.setEnabled(false);
+                mPageRangeEditText.setEnabled(false);
+                mPageRangeEditText.setVisibility(View.INVISIBLE);
+                mPageRangeTitle.setVisibility(View.INVISIBLE);
             }
-        } else {
-            if (mRangeOptionsSpinner.getSelectedItemPosition() != 0) {
-                mRangeOptionsSpinner.setSelection(0);
-                mPageRangeEditText.setText("");
-            }
-            mRangeOptionsSpinner.setEnabled(false);
-            mPageRangeEditText.setEnabled(false);
-            mPageRangeEditText.setVisibility(View.INVISIBLE);
-            mPageRangeTitle.setVisibility(View.INVISIBLE);
         }
 
         final int newPageCount = getAdjustedPageCount(info);
@@ -1933,7 +1944,7 @@
             return PageRangeUtils.normalize(pageRangesArray);
         }
 
-        return ALL_PAGES_ARRAY;
+        return PageRange.ALL_PAGES_ARRAY;
     }
 
     private int getAdjustedPageCount(PrintDocumentInfo info) {
@@ -2229,23 +2240,36 @@
             return AdapterView.INVALID_POSITION;
         }
 
-        public void ensurePrinterInVisibleAdapterPosition(PrinterId printerId) {
+        public void ensurePrinterInVisibleAdapterPosition(PrinterInfo printer) {
             final int printerCount = mPrinterHolders.size();
+            boolean isKnownPrinter = false;
             for (int i = 0; i < printerCount; i++) {
                 PrinterHolder printerHolder = mPrinterHolders.get(i);
-                if (printerHolder.printer.getId().equals(printerId)) {
+
+                if (printerHolder.printer.getId().equals(printer.getId())) {
+                    isKnownPrinter = true;
+
                     // If already in the list - do nothing.
                     if (i < getCount() - 2) {
-                        return;
+                        break;
                     }
                     // Else replace the last one (two items are not printers).
                     final int lastPrinterIndex = getCount() - 3;
                     mPrinterHolders.set(i, mPrinterHolders.get(lastPrinterIndex));
                     mPrinterHolders.set(lastPrinterIndex, printerHolder);
-                    notifyDataSetChanged();
-                    return;
+                    break;
                 }
             }
+
+            if (!isKnownPrinter) {
+                PrinterHolder printerHolder = new PrinterHolder(printer);
+                printerHolder.removed = true;
+
+                mPrinterHolders.add(Math.max(0, getCount() - 3), printerHolder);
+            }
+
+            // Force reload to adjust selection in PrintersObserver.onChanged()
+            notifyDataSetChanged();
         }
 
         @Override
@@ -2428,8 +2452,7 @@
             List<PrinterHolder> newPrinterHolders = new ArrayList<>();
 
             // Update printers we already have which are either updated or removed.
-            // We do not remove printers if the currently selected printer is removed
-            // to prevent the user printing to a wrong printer.
+            // We do not remove the currently selected printer.
             final int oldPrinterCount = mPrinterHolders.size();
             for (int i = 0; i < oldPrinterCount; i++) {
                 PrinterHolder printerHolder = mPrinterHolders.get(i);
@@ -2438,10 +2461,11 @@
                 if (updatedPrinter != null) {
                     printerHolder.printer = updatedPrinter;
                     printerHolder.removed = false;
-                } else {
+                    newPrinterHolders.add(printerHolder);
+                } else if (mCurrentPrinter != null && mCurrentPrinter.getId().equals(oldPrinterId)){
                     printerHolder.removed = true;
+                    newPrinterHolders.add(printerHolder);
                 }
-                newPrinterHolders.add(printerHolder);
             }
 
             // Add the rest of the new printers, i.e. what is left.
@@ -2473,14 +2497,25 @@
             return null;
         }
 
-        public void pruneRemovedPrinters() {
+        /**
+         * Remove a printer from the holders if it is marked as removed.
+         *
+         * @param printerId the id of the printer to remove.
+         *
+         * @return true iff the printer was removed.
+         */
+        public boolean pruneRemovedPrinter(PrinterId printerId) {
             final int holderCounts = mPrinterHolders.size();
             for (int i = holderCounts - 1; i >= 0; i--) {
                 PrinterHolder printerHolder = mPrinterHolders.get(i);
-                if (printerHolder.removed) {
+
+                if (printerHolder.printer.getId().equals(printerId) && printerHolder.removed) {
                     mPrinterHolders.remove(i);
+                    return true;
                 }
             }
+
+            return false;
         }
 
         private void addPrinters(List<PrinterHolder> list, Collection<PrinterInfo> printers) {
@@ -2525,17 +2560,17 @@
 
             PrinterHolder printerHolder = mDestinationSpinnerAdapter.getPrinterHolder(
                     oldPrinterState.getId());
-            if (printerHolder == null) {
-                return;
-            }
             PrinterInfo newPrinterState = printerHolder.printer;
 
-            if (!printerHolder.removed) {
-                mDestinationSpinnerAdapter.pruneRemovedPrinters();
-            } else {
+            if (printerHolder.removed) {
                 onPrinterUnavailable(newPrinterState);
             }
 
+            if (mDestinationSpinner.getSelectedItem() != printerHolder) {
+                mDestinationSpinner.setSelection(
+                        mDestinationSpinnerAdapter.getPrinterIndex(newPrinterState.getId()));
+            }
+
             if (oldPrinterState.equals(newPrinterState)) {
                 return;
             }
@@ -2607,6 +2642,8 @@
     private final class MyOnItemSelectedListener implements AdapterView.OnItemSelectedListener {
         @Override
         public void onItemSelected(AdapterView<?> spinner, View view, int position, long id) {
+            boolean clearRanges = false;
+
             if (spinner == mDestinationSpinner) {
                 if (position == AdapterView.INVALID_POSITION) {
                     return;
@@ -2625,13 +2662,28 @@
                     return;
                 }
 
+                PrinterId oldId = null;
+                if (mCurrentPrinter != null) {
+                    oldId = mCurrentPrinter.getId();
+                }
+
                 mCurrentPrinter = currentPrinter;
 
+                if (oldId != null) {
+                    boolean printerRemoved = mDestinationSpinnerAdapter.pruneRemovedPrinter(oldId);
+
+                    if (printerRemoved) {
+                        // Trigger PrinterObserver.onChanged to adjust selection. This will call
+                        // this function again.
+                        mDestinationSpinnerAdapter.notifyDataSetChanged();
+                        return;
+                    }
+                }
+
                 PrinterHolder printerHolder = mDestinationSpinnerAdapter.getPrinterHolder(
                         currentPrinter.getId());
                 if (!printerHolder.removed) {
                     setState(STATE_CONFIGURING);
-                    mDestinationSpinnerAdapter.pruneRemovedPrinters();
                     ensurePreviewUiShown();
                 }
 
@@ -2653,10 +2705,17 @@
             } else if (spinner == mMediaSizeSpinner) {
                 SpinnerItem<MediaSize> mediaItem = mMediaSizeSpinnerAdapter.getItem(position);
                 PrintAttributes attributes = mPrintJob.getAttributes();
+
+                MediaSize newMediaSize;
                 if (mOrientationSpinner.getSelectedItemPosition() == 0) {
-                    attributes.setMediaSize(mediaItem.value.asPortrait());
+                    newMediaSize = mediaItem.value.asPortrait();
                 } else {
-                    attributes.setMediaSize(mediaItem.value.asLandscape());
+                    newMediaSize = mediaItem.value.asLandscape();
+                }
+
+                if (newMediaSize != attributes.getMediaSize()) {
+                    clearRanges = true;
+                    attributes.setMediaSize(newMediaSize);
                 }
             } else if (spinner == mColorModeSpinner) {
                 SpinnerItem<Integer> colorModeItem = mColorModeSpinnerAdapter.getItem(position);
@@ -2668,25 +2727,35 @@
                 SpinnerItem<Integer> orientationItem = mOrientationSpinnerAdapter.getItem(position);
                 PrintAttributes attributes = mPrintJob.getAttributes();
                 if (mMediaSizeSpinner.getSelectedItem() != null) {
-                    if (orientationItem.value == ORIENTATION_PORTRAIT) {
-                        attributes.copyFrom(attributes.asPortrait());
-                    } else {
-                        attributes.copyFrom(attributes.asLandscape());
+                    boolean isPortrait = attributes.isPortrait();
+
+                    if (isPortrait != (orientationItem.value == ORIENTATION_PORTRAIT)) {
+                        clearRanges = true;
+                        if (orientationItem.value == ORIENTATION_PORTRAIT) {
+                            attributes.copyFrom(attributes.asPortrait());
+                        } else {
+                            attributes.copyFrom(attributes.asLandscape());
+                        }
                     }
                 }
             } else if (spinner == mRangeOptionsSpinner) {
                 if (mRangeOptionsSpinner.getSelectedItemPosition() == 0) {
+                    clearRanges = true;
                     mPageRangeEditText.setText("");
                 } else if (TextUtils.isEmpty(mPageRangeEditText.getText())) {
                     mPageRangeEditText.setError("");
                 }
             }
 
-            if (canUpdateDocument()) {
-                updateDocument(false);
+            if (clearRanges) {
+                clearPageRanges();
             }
 
             updateOptionsUi();
+
+            if (canUpdateDocument()) {
+                updateDocument(false);
+            }
         }
 
         @Override
@@ -2702,6 +2771,16 @@
             if (!TextUtils.isEmpty(editText.getText())) {
                 editText.setSelection(editText.getText().length());
             }
+
+            if (view == mPageRangeEditText && !hasFocus) {
+                PageRange[] selectedPages = computeSelectedPages();
+                if (selectedPages != null && !Arrays.equals(mSelectedPages, selectedPages)) {
+                    mSelectedPages = selectedPages;
+
+                    // Update preview.
+                    updatePrintPreviewController(false);
+                }
+            }
         }
     }
 
@@ -2719,19 +2798,22 @@
         @Override
         public void afterTextChanged(Editable editable) {
             final boolean hadErrors = hasErrors();
-
             String text = editable.toString();
 
             if (TextUtils.isEmpty(text)) {
-                mPageRangeEditText.setError("");
-                updateOptionsUi();
+                if (mPageRangeEditText.getError() == null) {
+                    mPageRangeEditText.setError("");
+                    updateOptionsUi();
+                }
                 return;
             }
 
             String escapedText = PATTERN_ESCAPE_SPECIAL_CHARS.matcher(text).replaceAll("////");
             if (!PATTERN_PAGE_RANGE.matcher(escapedText).matches()) {
-                mPageRangeEditText.setError("");
-                updateOptionsUi();
+                if (mPageRangeEditText.getError() == null) {
+                    mPageRangeEditText.setError("");
+                    updateOptionsUi();
+                }
                 return;
             }
 
@@ -2747,8 +2829,10 @@
                 }
                 final int pageIndex = Integer.parseInt(numericString);
                 if (pageIndex < 1 || pageIndex > pageCount) {
-                    mPageRangeEditText.setError("");
-                    updateOptionsUi();
+                    if (mPageRangeEditText.getError() == null) {
+                        mPageRangeEditText.setError("");
+                        updateOptionsUi();
+                    }
                     return;
                 }
             }
@@ -2757,13 +2841,14 @@
             // greater than the to page. When computing the requested pages
             // we just swap them if necessary.
 
-            mPageRangeEditText.setError(null);
-            mPrintButton.setEnabled(true);
-            updateOptionsUi();
-
-            if (hadErrors && !hasErrors()) {
+            if (mPageRangeEditText.getError() != null) {
+                mPageRangeEditText.setError(null);
                 updateOptionsUi();
             }
+
+            if (hadErrors && canUpdateDocument()) {
+                updateDocument(false);
+            }
         }
     }
 
@@ -2783,8 +2868,10 @@
             final boolean hadErrors = hasErrors();
 
             if (editable.length() == 0) {
-                mCopiesEditText.setError("");
-                updateOptionsUi();
+                if (mCopiesEditText.getError() == null) {
+                    mCopiesEditText.setError("");
+                    updateOptionsUi();
+                }
                 return;
             }
 
@@ -2796,16 +2883,19 @@
             }
 
             if (copies < MIN_COPIES) {
-                mCopiesEditText.setError("");
-                updateOptionsUi();
+                if (mCopiesEditText.getError() == null) {
+                    mCopiesEditText.setError("");
+                    updateOptionsUi();
+                }
                 return;
             }
 
             mPrintJob.setCopies(copies);
 
-            mCopiesEditText.setError(null);
-
-            updateOptionsUi();
+            if (mCopiesEditText.getError() != null) {
+                mCopiesEditText.setError(null);
+                updateOptionsUi();
+            }
 
             if (hadErrors && canUpdateDocument()) {
                 updateDocument(false);
diff --git a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
index e53a522..cee16c8 100644
--- a/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
+++ b/packages/PrintSpooler/src/com/android/printspooler/ui/SelectPrinterActivity.java
@@ -73,8 +73,9 @@
     private static final int LOADER_ID_PRINT_REGISTRY_INT = 2;
     private static final int LOADER_ID_ENABLED_PRINT_SERVICES = 3;
 
-    public static final String INTENT_EXTRA_PRINTER_ID = "INTENT_EXTRA_PRINTER_ID";
+    public static final String INTENT_EXTRA_PRINTER = "INTENT_EXTRA_PRINTER";
 
+    private static final String EXTRA_PRINTER = "EXTRA_PRINTER";
     private static final String EXTRA_PRINTER_ID = "EXTRA_PRINTER_ID";
 
     private static final String KEY_NOT_FIRST_CREATE = "KEY_NOT_FIRST_CREATE";
@@ -134,7 +135,7 @@
                 if (printer == null) {
                     startAddPrinterActivity();
                 } else {
-                    onPrinterSelected(printer.getId());
+                    onPrinterSelected(printer);
                 }
             }
         });
@@ -244,7 +245,7 @@
                 MenuItem selectItem = menu.add(Menu.NONE, R.string.print_select_printer,
                         Menu.NONE, R.string.print_select_printer);
                 Intent intent = new Intent();
-                intent.putExtra(EXTRA_PRINTER_ID, printer.getId());
+                intent.putExtra(EXTRA_PRINTER, printer);
                 selectItem.setIntent(intent);
             }
 
@@ -263,8 +264,8 @@
     public boolean onContextItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.string.print_select_printer: {
-                PrinterId printerId = item.getIntent().getParcelableExtra(EXTRA_PRINTER_ID);
-                onPrinterSelected(printerId);
+                PrinterInfo printer = item.getIntent().getParcelableExtra(EXTRA_PRINTER);
+                onPrinterSelected(printer);
             } return true;
 
             case R.string.print_forget_printer: {
@@ -302,9 +303,9 @@
         super.onStop();
     }
 
-    private void onPrinterSelected(PrinterId printerId) {
+    private void onPrinterSelected(PrinterInfo printer) {
         Intent intent = new Intent();
-        intent.putExtra(INTENT_EXTRA_PRINTER_ID, printerId);
+        intent.putExtra(INTENT_EXTRA_PRINTER, printer);
         setResult(RESULT_OK, intent);
         finish();
     }
diff --git a/packages/SettingsLib/res/values/config.xml b/packages/SettingsLib/res/values/config.xml
new file mode 100755
index 0000000..299a5b7
--- /dev/null
+++ b/packages/SettingsLib/res/values/config.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+/*
+** Copyright 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.
+*/
+-->
+<resources>
+    <!-- Configuration for automotive -->
+    <bool name="enable_pbap_pce_profile">false</bool>
+</resources>
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
index 6226b23..6052ccd 100755
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/LocalBluetoothProfileManager.java
@@ -24,12 +24,14 @@
 import android.bluetooth.BluetoothMap;
 import android.bluetooth.BluetoothInputDevice;
 import android.bluetooth.BluetoothPan;
+import android.bluetooth.BluetoothPbapClient;
 import android.bluetooth.BluetoothProfile;
 import android.bluetooth.BluetoothUuid;
 import android.content.Context;
 import android.content.Intent;
 import android.os.ParcelUuid;
 import android.util.Log;
+import com.android.settingslib.R;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
@@ -82,7 +84,9 @@
     private final HidProfile mHidProfile;
     private OppProfile mOppProfile;
     private final PanProfile mPanProfile;
+    private PbapClientProfile mPbapClientProfile;
     private final PbapServerProfile mPbapProfile;
+    private final boolean mUsePbapPce;
 
     /**
      * Mapping from profile name, e.g. "HEADSET" to profile object.
@@ -99,6 +103,7 @@
         mLocalAdapter = adapter;
         mDeviceManager = deviceManager;
         mEventManager = eventManager;
+        mUsePbapPce = mContext.getResources().getBoolean(R.bool.enable_pbap_pce_profile);
         // pass this reference to adapter and event manager (circular dependency)
         mLocalAdapter.setProfileManager(this);
         mEventManager.setProfileManager(this);
@@ -205,9 +210,24 @@
         } else if (mOppProfile != null) {
             Log.w(TAG, "Warning: OPP profile was previously added but the UUID is now missing.");
         }
+
+        //PBAP Client
+        if (mUsePbapPce) {
+            if (mPbapClientProfile == null) {
+                if(DEBUG) Log.d(TAG, "Adding local PBAP Client profile");
+                mPbapClientProfile = new PbapClientProfile(mContext, mLocalAdapter, mDeviceManager,
+                        this);
+                addProfile(mPbapClientProfile, PbapClientProfile.NAME,
+                        BluetoothPbapClient.ACTION_CONNECTION_STATE_CHANGED);
+            }
+        } else if (mPbapClientProfile != null) {
+            Log.w(TAG,
+                "Warning: PBAP Client profile was previously added but the UUID is now missing.");
+        }
+
         mEventManager.registerProfileIntentReceiver();
 
-        // There is no local SDP record for HID and Settings app doesn't control PBAP
+        // There is no local SDP record for HID and Settings app doesn't control PBAP Server.
     }
 
     private final Collection<ServiceListener> mServiceListeners =
@@ -351,6 +371,10 @@
         }
     }
 
+    public PbapClientProfile getPbapClientProfile() {
+        return mPbapClientProfile;
+    }
+
     public PbapServerProfile getPbapProfile(){
         return mPbapProfile;
     }
@@ -430,6 +454,12 @@
             removedProfiles.remove(mMapProfile);
             mMapProfile.setPreferred(device, true);
         }
-    }
 
+        if (mUsePbapPce) {
+            profiles.add(mPbapClientProfile);
+            removedProfiles.remove(mPbapClientProfile);
+            profiles.remove(mPbapProfile);
+            removedProfiles.add(mPbapProfile);
+        }
+    }
 }
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/PbapClientProfile.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/PbapClientProfile.java
new file mode 100755
index 0000000..aa95be2
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/PbapClientProfile.java
@@ -0,0 +1,233 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.bluetooth;
+
+import android.bluetooth.BluetoothPbapClient;
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothClass;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothProfile;
+import android.bluetooth.BluetoothUuid;
+import android.content.Context;
+import android.os.ParcelUuid;
+import android.util.Log;
+
+import com.android.settingslib.R;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+final class PbapClientProfile implements LocalBluetoothProfile {
+    private static final String TAG = "PbapClientProfile";
+    private static boolean V = false;
+
+    private BluetoothPbapClient mService;
+    private boolean mIsProfileReady;
+
+    private final LocalBluetoothAdapter mLocalAdapter;
+    private final CachedBluetoothDeviceManager mDeviceManager;
+
+    static final ParcelUuid[] SRC_UUIDS = {
+        BluetoothUuid.PBAP_PSE,
+    };
+
+    static final String NAME = "PbapClient";
+    private final LocalBluetoothProfileManager mProfileManager;
+
+    // Order of this profile in device profiles list
+    private static final int ORDINAL = 6;
+
+    // These callbacks run on the main thread.
+    private final class PbapClientServiceListener
+            implements BluetoothProfile.ServiceListener {
+
+        public void onServiceConnected(int profile, BluetoothProfile proxy) {
+            if (V) {
+                Log.d(TAG,"Bluetooth service connected");
+            }
+            mService = (BluetoothPbapClient) proxy;
+            // We just bound to the service, so refresh the UI for any connected PBAP devices.
+            List<BluetoothDevice> deviceList = mService.getConnectedDevices();
+            while (!deviceList.isEmpty()) {
+                BluetoothDevice nextDevice = deviceList.remove(0);
+                CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice);
+                // we may add a new device here, but generally this should not happen
+                if (device == null) {
+                    Log.w(TAG, "PbapClientProfile found new device: " + nextDevice);
+                    device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice);
+                }
+                device.onProfileStateChanged(PbapClientProfile.this, BluetoothProfile.STATE_CONNECTED);
+                device.refresh();
+            }
+            mIsProfileReady = true;
+        }
+
+        public void onServiceDisconnected(int profile) {
+            if (V) {
+                Log.d(TAG,"Bluetooth service disconnected");
+            }
+            mIsProfileReady = false;
+        }
+    }
+
+    private void refreshProfiles() {
+        Collection<CachedBluetoothDevice> cachedDevices = mDeviceManager.getCachedDevicesCopy();
+        for (CachedBluetoothDevice device : cachedDevices) {
+            device.onUuidChanged();
+        }
+    }
+
+    public boolean pbapClientExists() {
+        return (mService != null);
+    }
+
+    public boolean isProfileReady() {
+        return mIsProfileReady;
+    }
+
+    PbapClientProfile(Context context, LocalBluetoothAdapter adapter,
+            CachedBluetoothDeviceManager deviceManager,
+            LocalBluetoothProfileManager profileManager) {
+        mLocalAdapter = adapter;
+        mDeviceManager = deviceManager;
+        mProfileManager = profileManager;
+        mLocalAdapter.getProfileProxy(context, new PbapClientServiceListener(),
+                BluetoothProfile.PBAP_CLIENT);
+    }
+
+    public boolean isConnectable() {
+        return true;
+    }
+
+    public boolean isAutoConnectable() {
+        return true;
+    }
+
+    public List<BluetoothDevice> getConnectedDevices() {
+        if (mService == null) {
+            return new ArrayList<BluetoothDevice>(0);
+        }
+        return mService.getDevicesMatchingConnectionStates(
+              new int[] {BluetoothProfile.STATE_CONNECTED,
+                         BluetoothProfile.STATE_CONNECTING,
+                         BluetoothProfile.STATE_DISCONNECTING});
+    }
+
+    public boolean connect(BluetoothDevice device) {
+        if (V) {
+            Log.d(TAG,"PBAPClientProfile got connect request");
+        }
+        if (mService == null) {
+            return false;
+        }
+        List<BluetoothDevice> srcs = getConnectedDevices();
+        if (srcs != null) {
+            for (BluetoothDevice src : srcs) {
+                if (src.equals(device)) {
+                    // Connect to same device, Ignore it
+                    Log.d(TAG,"Ignoring Connect");
+                    return true;
+                }
+            }
+            mService.disconnect(device);
+        }
+        Log.d(TAG,"PBAPClientProfile attempting to connect to " + device.getAddress());
+
+        return mService.connect(device);
+    }
+
+    public boolean disconnect(BluetoothDevice device) {
+        if (V) {
+            Log.d(TAG,"PBAPClientProfile got disconnect request");
+        }
+        if (mService == null) {
+            return false;
+        }
+        return mService.disconnect(device);
+    }
+
+    public int getConnectionStatus(BluetoothDevice device) {
+        if (mService == null) {
+            return BluetoothProfile.STATE_DISCONNECTED;
+        }
+        return mService.getConnectionState(device);
+    }
+
+    public boolean isPreferred(BluetoothDevice device) {
+        if (mService == null) {
+            return false;
+        }
+        return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
+    }
+
+    public int getPreferred(BluetoothDevice device) {
+        if (mService == null) {
+            return BluetoothProfile.PRIORITY_OFF;
+        }
+        return mService.getPriority(device);
+    }
+
+    public void setPreferred(BluetoothDevice device, boolean preferred) {
+        if (mService == null) {
+            return;
+        }
+        if (preferred) {
+            if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
+                mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
+            }
+        } else {
+            mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
+        }
+    }
+
+    public String toString() {
+        return NAME;
+    }
+
+    public int getOrdinal() {
+        return ORDINAL;
+    }
+
+    public int getNameResource(BluetoothDevice device) {
+        // we need to have same string in UI as the server side.
+        return R.string.bluetooth_profile_pbap;
+    }
+
+    public int getSummaryResourceForDevice(BluetoothDevice device) {
+        return R.string.bluetooth_profile_pbap_summary;
+    }
+
+    public int getDrawableResource(BluetoothClass btClass) {
+        return R.drawable.ic_bt_cellphone;
+    }
+
+    protected void finalize() {
+        if (V) {
+            Log.d(TAG, "finalize()");
+        }
+        if (mService != null) {
+            try {
+                BluetoothAdapter.getDefaultAdapter().closeProfileProxy(
+                    BluetoothProfile.PBAP_CLIENT,mService);
+                mService = null;
+            } catch (Throwable t) {
+                Log.w(TAG, "Error cleaning up PBAP Client proxy", t);
+            }
+        }
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
index c3a5089..ff70190 100644
--- a/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
+++ b/packages/SettingsLib/src/com/android/settingslib/drawer/SettingsDrawerActivity.java
@@ -176,8 +176,11 @@
 
     @Override
     public void setContentView(@LayoutRes int layoutResID) {
-        LayoutInflater.from(this).inflate(layoutResID,
-                (ViewGroup) findViewById(R.id.content_frame));
+        final ViewGroup parent = (ViewGroup) findViewById(R.id.content_frame);
+        if (parent != null) {
+            parent.removeAllViews();
+        }
+        LayoutInflater.from(this).inflate(layoutResID, parent);
     }
 
     @Override
diff --git a/packages/SystemUI/res/layout/quick_status_bar_expanded_header.xml b/packages/SystemUI/res/layout/quick_status_bar_expanded_header.xml
index cb861ec..b88846b 100644
--- a/packages/SystemUI/res/layout/quick_status_bar_expanded_header.xml
+++ b/packages/SystemUI/res/layout/quick_status_bar_expanded_header.xml
@@ -26,9 +26,6 @@
     android:clipChildren="false"
     android:clipToPadding="false"
     android:baselineAligned="false"
-    android:background="@drawable/quick_header_bg"
-    android:clickable="true"
-    android:focusable="true"
     >
 
     <LinearLayout
@@ -83,6 +80,10 @@
             android:id="@+id/expand_indicator"
             android:layout_width="48dp"
             android:layout_height="48dp"
+            android:clipToPadding="false"
+            android:clickable="true"
+            android:focusable="true"
+            android:background="?android:attr/selectableItemBackgroundBorderless"
             android:padding="12dp" />
 
     </LinearLayout>
diff --git a/packages/SystemUI/res/layout/recents_stack_action_button.xml b/packages/SystemUI/res/layout/recents_stack_action_button.xml
index 8783261..2b2ce4e 100644
--- a/packages/SystemUI/res/layout/recents_stack_action_button.xml
+++ b/packages/SystemUI/res/layout/recents_stack_action_button.xml
@@ -27,8 +27,6 @@
     android:textSize="14sp"
     android:textColor="#FFFFFF"
     android:textAllCaps="true"
-    android:drawableStart="@drawable/ic_history"
-    android:drawablePadding="6dp"
     android:shadowColor="#99000000"
     android:shadowDx="0"
     android:shadowDy="2"
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index 622ae71..fd051b1 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -153,6 +153,9 @@
     <!-- The animation duration for animating the removal of a task view. -->
     <integer name="recents_animate_task_view_remove_duration">175</integer>
 
+    <!-- The base animation duration for animating the removal of all task views. -->
+    <integer name="recents_animate_task_views_remove_all_duration">300</integer>
+
     <!-- The animation duration for scrolling the stack to a particular item. -->
     <integer name="recents_animate_task_stack_scroll_duration">200</integer>
 
diff --git a/packages/SystemUI/res/values/dimens.xml b/packages/SystemUI/res/values/dimens.xml
index d1faa4a..c094da9 100644
--- a/packages/SystemUI/res/values/dimens.xml
+++ b/packages/SystemUI/res/values/dimens.xml
@@ -574,10 +574,12 @@
     <dimen name="recents_layout_bottom_margin">16dp</dimen>
     <dimen name="recents_layout_side_margin_phone">16dp</dimen>
     <dimen name="recents_layout_side_margin_tablet">48dp</dimen>
+    <dimen name="recents_layout_side_margin_tablet_docked">16dp</dimen>
     <dimen name="recents_layout_side_margin_tablet_xlarge">64dp</dimen>
+    <dimen name="recents_layout_side_margin_tablet_xlarge_docked">16dp</dimen>
 
     <!-- The height between the top margin and the top of the focused task. -->
-    <dimen name="recents_layout_top_peek_size">56dp</dimen>
+    <dimen name="recents_layout_top_peek_size">48dp</dimen>
     <!-- The height between the bottom margin and the top of task in front of the focused task. -->
     <dimen name="recents_layout_bottom_peek_size">56dp</dimen>
 
diff --git a/packages/SystemUI/src/com/android/systemui/Interpolators.java b/packages/SystemUI/src/com/android/systemui/Interpolators.java
index 5e33a9f..17f4dab 100644
--- a/packages/SystemUI/src/com/android/systemui/Interpolators.java
+++ b/packages/SystemUI/src/com/android/systemui/Interpolators.java
@@ -17,6 +17,7 @@
 package com.android.systemui;
 
 import android.view.animation.AccelerateDecelerateInterpolator;
+import android.view.animation.AccelerateInterpolator;
 import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Interpolator;
 import android.view.animation.LinearInterpolator;
@@ -32,6 +33,7 @@
     public static final Interpolator ALPHA_IN = new PathInterpolator(0.4f, 0f, 1f, 1f);
     public static final Interpolator ALPHA_OUT = new PathInterpolator(0f, 0f, 0.8f, 1f);
     public static final Interpolator LINEAR = new LinearInterpolator();
+    public static final Interpolator ACCELERATE = new AccelerateInterpolator();
     public static final Interpolator ACCELERATE_DECELERATE = new AccelerateDecelerateInterpolator();
     public static final Interpolator DECELERATE_QUINT = new DecelerateInterpolator(2.5f);
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
index fd43aa0..115c9d0 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
@@ -1,13 +1,13 @@
 package com.android.systemui.qs;
 
 import android.content.Context;
+import android.support.v4.view.PagerAdapter;
+import android.support.v4.view.ViewPager;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import com.android.internal.widget.PagerAdapter;
-import com.android.internal.widget.ViewPager;
 import com.android.systemui.R;
 import com.android.systemui.qs.QSPanel.QSTileLayout;
 import com.android.systemui.qs.QSPanel.TileRecord;
@@ -37,7 +37,8 @@
             public void onPageSelected(int position) {
                 if (mPageIndicator == null) return;
                 if (mPageListener != null) {
-                    mPageListener.onPageChanged(position == 0);
+                    mPageListener.onPageChanged(isLayoutRtl() ? position == mPages.size() - 1
+                            : position == 0);
                 }
             }
 
@@ -47,7 +48,8 @@
                 if (mPageIndicator == null) return;
                 mPageIndicator.setLocation(position + positionOffset);
                 if (mPageListener != null) {
-                    mPageListener.onPageChanged(position == 0 && positionOffsetPixels == 0);
+                    mPageListener.onPageChanged(positionOffsetPixels == 0 &&
+                            (isLayoutRtl() ? position == mPages.size() - 1 : position == 0));
                 }
             }
 
@@ -59,6 +61,21 @@
     }
 
     @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+        setAdapter(mAdapter);
+        setCurrentItem(0, false);
+    }
+
+    @Override
+    public void setCurrentItem(int item, boolean smoothScroll) {
+        if (isLayoutRtl()) {
+            item = mPages.size() - 1 - item;
+        }
+        super.setCurrentItem(item, smoothScroll);
+    }
+
+    @Override
     public boolean hasOverlappingRendering() {
         return false;
     }
@@ -128,6 +145,7 @@
             mNumPages = index + 1;
             mPageIndicator.setNumPages(mNumPages);
             mAdapter.notifyDataSetChanged();
+            setCurrentItem(0, false);
         }
     }
 
@@ -206,6 +224,9 @@
 
         public Object instantiateItem(ViewGroup container, int position) {
             if (DEBUG) Log.d(TAG, "Instantiating " + position);
+            if (isLayoutRtl()) {
+                position = mPages.size() - 1 - position;
+            }
             ViewGroup view = mPages.get(position);
             container.addView(view);
             return view;
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
index 0b6eaba..58d7c81 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
@@ -64,6 +64,7 @@
     private boolean mAllowFancy;
     private boolean mFullRows;
     private int mNumQuickTiles;
+    private float mLastPosition;
 
     public QSAnimator(QSContainer container, QuickQSPanel quickPanel, QSPanel panel) {
         mQsContainer = container;
@@ -80,6 +81,10 @@
         }
     }
 
+    public void onRtlChanged() {
+        updateAnimators();
+    }
+
     public void setOnKeyguard(boolean onKeyguard) {
         mOnKeyguard = onKeyguard;
         if (mOnKeyguard) {
@@ -246,7 +251,7 @@
 
     private void getRelativePositionInt(int[] loc1, View view, View parent) {
         if(view == parent || view == null) return;
-        loc1[0] += view.getLeft();
+        loc1[0] += view.getX();
         loc1[1] += view.getTop();
         getRelativePositionInt(loc1, (View) view.getParent(), parent);
     }
@@ -256,6 +261,7 @@
         if (mOnKeyguard) {
             return;
         }
+        mLastPosition = position;
         if (mOnFirstPage && mAllowFancy) {
             mQuickQsPanel.setAlpha(1);
             mFirstPageAnimator.setPosition(position);
@@ -296,7 +302,7 @@
     private void clearAnimationState() {
         final int N = mAllViews.size();
         mQuickQsPanel.setAlpha(0);
-        mQuickQsPanel.setVisibility(View.INVISIBLE);
+        mQuickQsPanel.setVisibility(View.VISIBLE);
         for (int i = 0; i < N; i++) {
             View v = mAllViews.get(i);
             v.setAlpha(1);
@@ -312,7 +318,7 @@
     @Override
     public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft,
             int oldTop, int oldRight, int oldBottom) {
-        updateAnimators();
+        mQsPanel.post(mUpdateAnimators);
     }
 
     @Override
@@ -334,6 +340,7 @@
         @Override
         public void run() {
             updateAnimators();
+            setPosition(mLastPosition);
         }
     };
 }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java b/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
index 43ebe04..5d06aeb 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
@@ -20,6 +20,7 @@
 import android.animation.AnimatorListenerAdapter;
 import android.content.Context;
 import android.graphics.Point;
+import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.View;
@@ -43,6 +44,7 @@
     private static final boolean DEBUG = false;
 
     private final Point mSizePoint = new Point();
+    private final Rect mQsBounds = new Rect();
 
     private int mHeightOverride = -1;
     private QSPanel mQSPanel;
@@ -76,6 +78,12 @@
         mQSCustomizer.setQsContainer(this);
     }
 
+    @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+        mQSAnimator.onRtlChanged();
+    }
+
     public void setHost(QSTileHost qsh) {
         mQSPanel.setHost(qsh, mQSCustomizer);
         mHeader.setQSPanel(mQSPanel);
@@ -226,6 +234,12 @@
         mQSDetail.setFullyExpanded(expansion == 1);
         mQSAnimator.setPosition(expansion);
         updateBottom();
+
+        // Set bounds on the QS panel so it doesn't run over the header.
+        mQsBounds.top = (int) (mQSPanel.getHeight() * (1 - expansion));
+        mQsBounds.right = mQSPanel.getWidth();
+        mQsBounds.bottom = mQSPanel.getHeight();
+        mQSPanel.setClipBounds(mQsBounds);
     }
 
     public void animateHeaderSlidingIn(long delay) {
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
index 899b0ef..a05818a 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSPanel.java
@@ -119,12 +119,18 @@
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         TunerService.get(mContext).addTunable(this, QS_SHOW_BRIGHTNESS);
+        if (mHost != null) {
+            setTiles(mHost.getTiles());
+        }
     }
 
     @Override
     protected void onDetachedFromWindow() {
         TunerService.get(mContext).removeTunable(this);
         mHost.removeCallback(this);
+        for (TileRecord record : mRecords) {
+            record.tile.removeCallbacks();
+        }
         super.onDetachedFromWindow();
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSTile.java b/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
index 1659888..8777a91 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSTile.java
@@ -24,11 +24,15 @@
 import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
+import android.os.UserHandle;
+import android.os.UserManager;
 import android.util.Log;
 import android.util.SparseArray;
 import android.view.View;
 import android.view.ViewGroup;
 
+import com.android.internal.logging.MetricsLogger;
+import com.android.internal.logging.MetricsProto.MetricsEvent;
 import com.android.settingslib.RestrictedLockUtils;
 import com.android.systemui.qs.QSTile.State;
 import com.android.systemui.qs.external.TileServices;
@@ -81,6 +85,8 @@
     abstract protected void handleClick();
     abstract protected void handleUpdateState(TState state, Object arg);
 
+    private UserManager mUserManager;
+
     /**
      * Declare the category of this tile.
      *
@@ -93,6 +99,7 @@
         mHost = host;
         mContext = host.getContext();
         mHandler = new H(host.getLooper());
+        mUserManager = UserManager.get(mContext);
     }
 
     public String getTileSpec() {
@@ -212,6 +219,7 @@
     }
 
     protected void handleLongClick() {
+        MetricsLogger.action(mContext, MetricsEvent.ACTION_QS_LONG_PRESS, getTileSpec());
         mHost.startActivityDismissingKeyguard(getLongClickIntent());
     }
 
@@ -282,12 +290,11 @@
     }
 
     protected void checkIfRestrictionEnforcedByAdminOnly(State state, String userRestriction) {
-        EnforcedAdmin admin = RestrictedLockUtils.checkIfRestrictionEnforced(mContext,
-                userRestriction, ActivityManager.getCurrentUser());
-        if (admin != null && !RestrictedLockUtils.hasBaseUserRestriction(mContext,
-                userRestriction, ActivityManager.getCurrentUser())) {
+        UserHandle user = UserHandle.of(ActivityManager.getCurrentUser());
+        if (mUserManager.hasUserRestriction(userRestriction, user)
+                && !mUserManager.hasBaseUserRestriction(userRestriction, user)) {
             state.disabledByPolicy = true;
-            state.enforcedAdmin = admin;
+            state.enforcedAdmin = EnforcedAdmin.MULTIPLE_ENFORCED_ADMIN;
         } else {
             state.disabledByPolicy = false;
             state.enforcedAdmin = null;
diff --git a/packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java b/packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java
index aeca840..83ac45c 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/customize/QSCustomizer.java
@@ -32,6 +32,8 @@
 import android.widget.LinearLayout;
 import android.widget.Toolbar;
 import android.widget.Toolbar.OnMenuItemClickListener;
+import com.android.internal.logging.MetricsLogger;
+import com.android.internal.logging.MetricsProto;
 import com.android.systemui.R;
 import com.android.systemui.qs.QSContainer;
 import com.android.systemui.qs.QSDetailClipper;
@@ -116,6 +118,7 @@
 
     public void show(int x, int y) {
         if (!isShown) {
+            MetricsLogger.visible(getContext(), MetricsProto.MetricsEvent.QS_EDIT);
             isShown = true;
             setTileSpecs();
             setVisibility(View.VISIBLE);
@@ -127,6 +130,7 @@
 
     public void hide(int x, int y) {
         if (isShown) {
+            MetricsLogger.hidden(getContext(), MetricsProto.MetricsEvent.QS_EDIT);
             isShown = false;
             mToolbar.dismissPopupMenus();
             setCustomizing(false);
@@ -149,6 +153,7 @@
     public boolean onMenuItemClick(MenuItem item) {
         switch (item.getItemId()) {
             case MENU_RESET:
+                MetricsLogger.action(getContext(), MetricsProto.MetricsEvent.ACTION_QS_EDIT_RESET);
                 reset();
                 break;
         }
diff --git a/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java b/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
index 353c6b6..4c13451 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/customize/TileAdapter.java
@@ -16,6 +16,7 @@
 
 import android.app.AlertDialog;
 import android.app.AlertDialog.Builder;
+import android.content.ComponentName;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.graphics.Canvas;
@@ -36,12 +37,15 @@
 import android.view.accessibility.AccessibilityManager;
 import android.widget.FrameLayout;
 import android.widget.TextView;
+import com.android.internal.logging.MetricsLogger;
+import com.android.internal.logging.MetricsProto;
 import com.android.systemui.R;
 import com.android.systemui.qs.QSIconView;
 import com.android.systemui.qs.QSTileView;
 import com.android.systemui.qs.customize.TileAdapter.Holder;
 import com.android.systemui.qs.customize.TileQueryHelper.TileInfo;
 import com.android.systemui.qs.customize.TileQueryHelper.TileStateListener;
+import com.android.systemui.qs.external.CustomTile;
 import com.android.systemui.statusbar.phone.QSTileHost;
 import com.android.systemui.statusbar.phone.SystemUIDialog;
 
@@ -304,12 +308,24 @@
         notifyItemMoved(from, to);
         CharSequence announcement;
         if (to >= mDividerIndex) {
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_REMOVE_SPEC,
+                    strip(mTiles.get(to)));
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_REMOVE,
+                    from);
             announcement = mContext.getString(R.string.accessibility_qs_edit_tile_removed,
                     fromLabel);
         } else if (from >= mDividerIndex) {
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_ADD_SPEC,
+                    strip(mTiles.get(to)));
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_ADD,
+                    to);
             announcement = mContext.getString(R.string.accessibility_qs_edit_tile_added,
                     fromLabel, (to + 1));
         } else {
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_MOVE_SPEC,
+                    strip(mTiles.get(to)));
+            MetricsLogger.action(mContext, MetricsProto.MetricsEvent.ACTION_QS_EDIT_MOVE,
+                    to);
             announcement = mContext.getString(R.string.accessibility_qs_edit_tile_moved,
                     fromLabel, (to + 1));
         }
@@ -317,6 +333,15 @@
         return true;
     }
 
+    private String strip(TileInfo tileInfo) {
+        String spec = tileInfo.spec;
+        if (spec.startsWith(CustomTile.PREFIX)) {
+            ComponentName component = CustomTile.getComponentFromSpec(spec);
+            return component.getPackageName();
+        }
+        return spec;
+    }
+
     private <T> void move(int from, int to, List<T> list) {
         list.add(from > to ? to : to + 1, list.get(from));
         list.remove(from > to ? from + 1 : from);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index b89c2f6..fff7d78 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -90,6 +90,7 @@
 
     private RecentsPackageMonitor mPackageMonitor;
     private long mLastTabKeyEventTime;
+    private int mLastOrientation = Configuration.ORIENTATION_UNDEFINED;
     private boolean mFinishedOnStartup;
     private boolean mIgnoreAltTabRelease;
     private boolean mIsVisible;
@@ -266,6 +267,7 @@
         getWindow().getAttributes().privateFlags |=
                 WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DECOR_VIEW_VISIBILITY;
 
+        mLastOrientation = getResources().getConfiguration().orientation;
         mFocusTimerDuration = getResources().getInteger(R.integer.recents_auto_advance_duration);
         mIterateTrigger = new DozeTrigger(mFocusTimerDuration, new Runnable() {
             @Override
@@ -274,6 +276,9 @@
             }
         });
 
+        // Set the window background
+        getWindow().setBackgroundDrawable(mRecentsView.getBackgroundScrim());
+
         // Create the home intent runnable
         mHomeIntent = new Intent(Intent.ACTION_MAIN, null);
         mHomeIntent.addCategory(Intent.CATEGORY_HOME);
@@ -415,13 +420,18 @@
         // Update the nav bar for the current orientation
         updateNavBarScrim(false /* animateNavBarScrim */, AnimationProps.IMMEDIATE);
 
-        EventBus.getDefault().send(new ConfigurationChangedEvent(false /* fromMultiWindow */));
+        // Notify of the config change
+        int newOrientation = getResources().getConfiguration().orientation;
+        EventBus.getDefault().send(new ConfigurationChangedEvent(false /* fromMultiWindow */,
+                (mLastOrientation != newOrientation)));
+        mLastOrientation = newOrientation;
     }
 
     @Override
-    public void onMultiWindowChanged(boolean inMultiWindow) {
-        super.onMultiWindowChanged(inMultiWindow);
-        EventBus.getDefault().send(new ConfigurationChangedEvent(true /* fromMultiWindow */));
+    public void onMultiWindowModeChanged(boolean isInMultiWindowMode) {
+        super.onMultiWindowModeChanged(isInMultiWindowMode);
+        EventBus.getDefault().send(new ConfigurationChangedEvent(true /* fromMultiWindow */,
+                false /* fromOrientationChange */));
 
         if (mRecentsView != null) {
             // Reload the task stack completely
@@ -439,7 +449,7 @@
             mRecentsView.updateStack(loadPlan.getTaskStack());
         }
 
-        EventBus.getDefault().send(new MultiWindowStateChangedEvent(inMultiWindow));
+        EventBus.getDefault().send(new MultiWindowStateChangedEvent(isInMultiWindowMode));
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
index 043510e..1715356 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
@@ -36,7 +36,7 @@
         // Enables the task affiliations
         public static final boolean EnableAffiliatedTaskGroups = false;
         // TODO: To be repurposed
-        public static final boolean EnableStackActionButton = false;
+        public static final boolean EnableStackActionButton = true;
         // Overrides the Tuner flags and enables the timeout
         private static final boolean EnableFastToggleTimeout = false;
         // Overrides the Tuner flags and enables the paging via the Recents button
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index ffc037d..43d627d 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -663,13 +663,18 @@
             @Override
             public void run() {
                 final Bitmap transitionBitmap = drawThumbnailTransitionBitmap(toTask, toTransform);
-                mHandler.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        mThumbnailTransitionBitmapCache = transitionBitmap;
-                        mThumbnailTransitionBitmapCacheKey = toTask;
-                    }
-                });
+                if (transitionBitmap != null) {
+                    mHandler.post(new Runnable() {
+                        @Override
+                        public void run() {
+                            mThumbnailTransitionBitmapCache = transitionBitmap;
+                            mThumbnailTransitionBitmapCacheKey = toTask;
+                        }
+                    });
+                } else {
+                    Log.e(TAG, "Could not load thumbnail for task: " + toTask + " at transform: " +
+                            toTransform);
+                }
             }
         });
     }
@@ -774,7 +779,7 @@
         // Get the transform for the running task
         stackView.updateLayoutAlgorithm(true /* boundScroll */);
         stackView.updateToInitialState(true /* scrollToInitialState */);
-        mTmpTransform = stackView.getStackAlgorithm().getStackTransformScreenCoordinates(launchTask,
+        stackView.getStackAlgorithm().getStackTransformScreenCoordinates(launchTask,
                 stackView.getScroller().getStackScroll(), mTmpTransform, null);
         return mTmpTransform;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/ConfigurationChangedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/ConfigurationChangedEvent.java
index c234c34..8be9ca7 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/ConfigurationChangedEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/activity/ConfigurationChangedEvent.java
@@ -24,8 +24,10 @@
 public class ConfigurationChangedEvent extends EventBus.AnimatedEvent {
 
     public final boolean fromMultiWindow;
+    public final boolean fromOrientationChange;
 
-    public ConfigurationChangedEvent(boolean fromMultiWindow) {
+    public ConfigurationChangedEvent(boolean fromMultiWindow, boolean fromOrientationChange) {
         this.fromMultiWindow = fromMultiWindow;
+        this.fromOrientationChange = fromOrientationChange;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/ui/ResetBackgroundScrimEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissAllTaskViewsEvent.java
similarity index 78%
rename from packages/SystemUI/src/com/android/systemui/recents/events/ui/ResetBackgroundScrimEvent.java
rename to packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissAllTaskViewsEvent.java
index 863f40b..f8b59c7 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/ui/ResetBackgroundScrimEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissAllTaskViewsEvent.java
@@ -17,10 +17,11 @@
 package com.android.systemui.recents.events.ui;
 
 import com.android.systemui.recents.events.EventBus;
+import com.android.systemui.recents.views.TaskView;
 
 /**
- * This is sent to reset the background scrim back to the initial state.
+ * This event is sent to request that all the {@link TaskView}s are dismissed.
  */
-public class ResetBackgroundScrimEvent extends EventBus.Event {
+public class DismissAllTaskViewsEvent extends EventBus.AnimatedEvent {
     // Simple event
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissTaskViewEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissTaskViewEvent.java
index 1165f4e..1f8c644 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissTaskViewEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/ui/DismissTaskViewEvent.java
@@ -17,7 +17,6 @@
 package com.android.systemui.recents.events.ui;
 
 import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.model.Task;
 import com.android.systemui.recents.views.TaskView;
 
 /**
@@ -26,10 +25,8 @@
 public class DismissTaskViewEvent extends EventBus.AnimatedEvent {
 
     public final TaskView taskView;
-    public final Task task;
 
-    public DismissTaskViewEvent(TaskView taskView, Task task) {
+    public DismissTaskViewEvent(TaskView taskView) {
         this.taskView = taskView;
-        this.task = task;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateBackgroundScrimEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateBackgroundScrimEvent.java
deleted file mode 100644
index fdd4c67..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/events/ui/UpdateBackgroundScrimEvent.java
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * 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.systemui.recents.events.ui;
-
-import com.android.systemui.recents.events.EventBus;
-
-/**
- * This is sent to request an update to the background scrim.
- */
-public class UpdateBackgroundScrimEvent extends EventBus.Event {
-
-    public final float alpha;
-
-    public UpdateBackgroundScrimEvent(float alpha) {
-        this.alpha = alpha;
-    }
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
index 5a2507d..df3f56c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
@@ -222,6 +222,11 @@
             Task newFrontMostTask, AnimationProps animation, boolean fromDockGesture);
 
         /**
+         * Notifies when all tasks have been removed from the stack.
+         */
+        void onStackTasksRemoved(TaskStack stack);
+
+        /**
          * Notifies when tasks in the stack have been updated.
          */
         void onStackTasksUpdated(TaskStack stack);
@@ -510,6 +515,22 @@
     }
 
     /**
+     * Removes all tasks from the stack.
+     */
+    public void removeAllTasks() {
+        ArrayList<Task> tasks = mStackTaskList.getTasks();
+        for (int i = tasks.size() - 1; i >= 0; i--) {
+            Task t = tasks.get(i);
+            removeTaskImpl(mStackTaskList, t);
+            mRawTaskList.remove(t);
+        }
+        if (mCb != null) {
+            // Notify that all tasks have been removed
+            mCb.onStackTasksRemoved(this);
+        }
+    }
+
+    /**
      * Sets a few tasks in one go, without calling any callbacks.
      *
      * @param tasks the new set of tasks to replace the current set.
diff --git a/packages/SystemUI/src/com/android/systemui/recents/tv/views/TaskStackHorizontalGridView.java b/packages/SystemUI/src/com/android/systemui/recents/tv/views/TaskStackHorizontalGridView.java
index 3d0e75a..5eb9fda 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/tv/views/TaskStackHorizontalGridView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/tv/views/TaskStackHorizontalGridView.java
@@ -158,6 +158,11 @@
     }
 
     @Override
+    public void onStackTasksRemoved(TaskStack stack) {
+        // Do nothing
+    }
+
+    @Override
     public void onStackTasksUpdated(TaskStack stack) {
         // Do nothing
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
index 9dc3fb1..9eec2ce 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
@@ -28,11 +28,13 @@
 import android.content.Context;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.Color;
 import android.graphics.Rect;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IRemoteCallback;
 import android.os.RemoteException;
+import android.util.Log;
 import android.view.AppTransitionAnimationSpec;
 import android.view.IAppTransitionAnimationSpecsFuture;
 
@@ -252,12 +254,13 @@
     /**
      * Composes the transition spec when docking a task, which includes a full task bitmap.
      */
-    public List<AppTransitionAnimationSpec> composeDockAnimationSpec(
-            TaskView taskView, Rect transform) {
-        TaskViewTransform viewTransform = new TaskViewTransform();
-        viewTransform.fillIn(taskView);
-        return Collections.singletonList(new AppTransitionAnimationSpec(taskView.getTask().key.id,
-                RecentsTransitionHelper.composeTaskBitmap(taskView, viewTransform), transform));
+    public List<AppTransitionAnimationSpec> composeDockAnimationSpec(TaskView taskView,
+            Rect bounds) {
+        mTmpTransform.fillIn(taskView);
+        Task task = taskView.getTask();
+        Bitmap thumbnail = RecentsTransitionHelper.composeTaskBitmap(taskView, mTmpTransform);
+        return Collections.singletonList(new AppTransitionAnimationSpec(task.key.id, thumbnail,
+                bounds));
     }
 
     /**
@@ -336,18 +339,27 @@
         float scale = transform.scale;
         int fromWidth = (int) (transform.rect.width() * scale);
         int fromHeight = (int) (transform.rect.height() * scale);
-        Bitmap b = Bitmap.createBitmap(fromWidth, fromHeight,
-                Bitmap.Config.ARGB_8888);
+        if (fromWidth == 0 || fromHeight == 0) {
+            Log.e(TAG, "Could not compose thumbnail for task: " + taskView.getTask() +
+                    " at transform: " + transform);
 
-        if (RecentsDebugFlags.Static.EnableTransitionThumbnailDebugMode) {
-            b.eraseColor(0xFFff0000);
+            Bitmap b = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
+            b.eraseColor(Color.TRANSPARENT);
+            return b;
         } else {
-            Canvas c = new Canvas(b);
-            c.scale(scale, scale);
-            taskView.draw(c);
-            c.setBitmap(null);
+            Bitmap b = Bitmap.createBitmap(fromWidth, fromHeight,
+                    Bitmap.Config.ARGB_8888);
+
+            if (RecentsDebugFlags.Static.EnableTransitionThumbnailDebugMode) {
+                b.eraseColor(0xFFff0000);
+            } else {
+                Canvas c = new Canvas(b);
+                c.scale(scale, scale);
+                taskView.draw(c);
+                c.setBitmap(null);
+            }
+            return b.createAshmemBitmap();
         }
-        return b.createAshmemBitmap();
     }
 
     private static Bitmap composeHeaderBitmap(TaskView taskView,
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 b23b01f..da2f721 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
@@ -58,10 +58,11 @@
 import com.android.systemui.recents.events.activity.HideStackActionButtonEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskEvent;
 import com.android.systemui.recents.events.activity.ShowStackActionButtonEvent;
+import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent;
+import com.android.systemui.recents.events.ui.DeleteTaskDataEvent;
+import com.android.systemui.recents.events.ui.DismissAllTaskViewsEvent;
 import com.android.systemui.recents.events.ui.DraggingInRecentsEndedEvent;
 import com.android.systemui.recents.events.ui.DraggingInRecentsEvent;
-import com.android.systemui.recents.events.ui.ResetBackgroundScrimEvent;
-import com.android.systemui.recents.events.ui.UpdateBackgroundScrimEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragDropTargetChangedEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragEndEvent;
 import com.android.systemui.recents.events.ui.dragndrop.DragStartEvent;
@@ -87,6 +88,9 @@
     private static final int DEFAULT_UPDATE_SCRIM_DURATION = 200;
     private static final float DEFAULT_SCRIM_ALPHA = 0.33f;
 
+    private static final int SHOW_STACK_ACTION_BUTTON_DURATION = 150;
+    private static final int HIDE_STACK_ACTION_BUTTON_DURATION = 100;
+
     private TaskStack mStack;
     private TaskStackView mTaskStackView;
     private TextView mStackActionButton;
@@ -99,7 +103,8 @@
     private Rect mSystemInsets = new Rect();
     private int mDividerSize;
 
-    private ColorDrawable mBackgroundScrim = new ColorDrawable(Color.BLACK);
+    private Drawable mBackgroundScrim = new ColorDrawable(
+            Color.argb((int) (DEFAULT_SCRIM_ALPHA * 255), 0, 0, 0)).mutate();
     private Animator mBackgroundScrimAnimator;
 
     private RecentsTransitionHelper mTransitionHelper;
@@ -135,10 +140,11 @@
                     R.dimen.recents_task_view_rounded_corners_radius);
             mStackActionButton = (TextView) inflater.inflate(R.layout.recents_stack_action_button,
                     this, false);
+            mStackActionButton.forceHasOverlappingRendering(false);
             mStackActionButton.setOnClickListener(new View.OnClickListener() {
                 @Override
                 public void onClick(View v) {
-                    // TODO: To be implemented
+                    EventBus.getDefault().send(new DismissAllTaskViewsEvent());
                 }
             });
             addView(mStackActionButton);
@@ -152,8 +158,6 @@
         }
         mEmptyView = (TextView) inflater.inflate(R.layout.recents_empty, this, false);
         addView(mEmptyView);
-
-        setBackground(mBackgroundScrim);
     }
 
     /**
@@ -179,14 +183,14 @@
 
         if (isResumingFromVisible) {
             // If we are already visible, then restore the background scrim
-            animateBackgroundScrim(DEFAULT_SCRIM_ALPHA, DEFAULT_UPDATE_SCRIM_DURATION);
+            animateBackgroundScrim(1f, DEFAULT_UPDATE_SCRIM_DURATION);
         } else {
             // If we are already occluded by the app, then set the final background scrim alpha now.
             // Otherwise, defer until the enter animation completes to animate the scrim alpha with
             // the tasks for the home animation.
             if (launchState.launchedViaDockGesture || launchState.launchedFromApp
                     || isTaskStackEmpty) {
-                mBackgroundScrim.setAlpha((int) (DEFAULT_SCRIM_ALPHA * 255));
+                mBackgroundScrim.setAlpha(255);
             } else {
                 mBackgroundScrim.setAlpha(0);
             }
@@ -215,6 +219,13 @@
         return mStack;
     }
 
+    /*
+     * Returns the window background scrim.
+     */
+    public Drawable getBackgroundScrim() {
+        return mBackgroundScrim;
+    }
+
     /**
      * Returns whether the last task launched was in the freeform stack or not.
      */
@@ -566,17 +577,21 @@
         RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();
         if (!launchState.launchedViaDockGesture && !launchState.launchedFromApp
                 && mStack.getTaskCount() > 0) {
-            animateBackgroundScrim(DEFAULT_SCRIM_ALPHA,
+            animateBackgroundScrim(1f,
                     TaskStackAnimationHelper.ENTER_FROM_HOME_TRANSLATION_DURATION);
         }
     }
 
-    public final void onBusEvent(UpdateBackgroundScrimEvent event) {
-        animateBackgroundScrim(event.alpha, DEFAULT_UPDATE_SCRIM_DURATION);
+    public final void onBusEvent(AllTaskViewsDismissedEvent event) {
+        hideStackActionButton(HIDE_STACK_ACTION_BUTTON_DURATION, true /* translate */);
     }
 
-    public final void onBusEvent(ResetBackgroundScrimEvent event) {
-        animateBackgroundScrim(DEFAULT_SCRIM_ALPHA, DEFAULT_UPDATE_SCRIM_DURATION);
+    public final void onBusEvent(DismissAllTaskViewsEvent event) {
+        SystemServicesProxy ssp = Recents.getSystemServices();
+        if (!ssp.hasDockedTask()) {
+            // Animate the background away only if we are dismissing Recents to home
+            animateBackgroundScrim(0f, DEFAULT_UPDATE_SCRIM_DURATION);
+        }
     }
 
     public final void onBusEvent(ShowStackActionButtonEvent event) {
@@ -584,7 +599,7 @@
             return;
         }
 
-        showStackActionButton(150, event.translate);
+        showStackActionButton(SHOW_STACK_ACTION_BUTTON_DURATION, event.translate);
     }
 
     public final void onBusEvent(HideStackActionButtonEvent event) {
@@ -592,7 +607,7 @@
             return;
         }
 
-        hideStackActionButton(100, true /* translate */);
+        hideStackActionButton(HIDE_STACK_ACTION_BUTTON_DURATION, true /* translate */);
     }
 
     /**
@@ -623,7 +638,6 @@
                             .alpha(1f)
                             .setDuration(duration)
                             .setInterpolator(Interpolators.FAST_OUT_SLOW_IN)
-                            .withLayer()
                             .start();
                 }
             });
@@ -669,7 +683,6 @@
                             postAnimationTrigger.decrement();
                         }
                     })
-                    .withLayer()
                     .start();
             postAnimationTrigger.increment();
         }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
index 9c8189a..13ad9a5 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
@@ -24,6 +24,7 @@
 import com.android.systemui.R;
 import com.android.systemui.recents.events.activity.DismissRecentsToHomeAnimationStarted;
 import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent;
+import com.android.systemui.recents.events.ui.DismissAllTaskViewsEvent;
 
 /** Manages the scrims for the various system bars. */
 public class SystemBarScrimViews {
@@ -107,4 +108,14 @@
             animateNavBarScrimVisibility(false, animation);
         }
     }
+
+    public final void onBusEvent(DismissAllTaskViewsEvent event) {
+        if (mHasNavBarScrim) {
+            AnimationProps animation = new AnimationProps()
+                    .setDuration(AnimationProps.BOUNDS,
+                            TaskStackAnimationHelper.EXIT_TO_HOME_TRANSLATION_DURATION)
+                    .setInterpolator(AnimationProps.BOUNDS, Interpolators.FAST_OUT_SLOW_IN);
+            animateNavBarScrimVisibility(false, animation);
+        }
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
index 8db81f7..1c433d8 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackAnimationHelper.java
@@ -31,6 +31,7 @@
 import com.android.systemui.recents.RecentsActivityLaunchState;
 import com.android.systemui.recents.RecentsConfiguration;
 import com.android.systemui.recents.misc.ReferenceCountedTrigger;
+import com.android.systemui.recents.misc.Utilities;
 import com.android.systemui.recents.model.Task;
 import com.android.systemui.recents.model.TaskStack;
 
@@ -277,7 +278,6 @@
     public void startExitToHomeAnimation(boolean animated,
             ReferenceCountedTrigger postAnimationTrigger) {
         TaskStackLayoutAlgorithm stackLayout = mStackView.getStackAlgorithm();
-        TaskStackViewScroller stackScroller = mStackView.getScroller();
         TaskStack stack = mStackView.getStack();
 
         // Break early if there are no tasks
@@ -313,8 +313,7 @@
                 taskAnimation = AnimationProps.IMMEDIATE;
             }
 
-            stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform,
-                    null);
+            mTmpTransform.fillIn(tv);
             mTmpTransform.alpha = 0f;
             mTmpTransform.rect.offset(0, offscreenYOffset);
             mStackView.updateTaskViewToTransform(tv, mTmpTransform, taskAnimation);
@@ -328,8 +327,6 @@
     public void startLaunchTaskAnimation(TaskView launchingTaskView, boolean screenPinningRequested,
             final ReferenceCountedTrigger postAnimationTrigger) {
         Resources res = mStackView.getResources();
-        TaskStackLayoutAlgorithm stackLayout = mStackView.getStackAlgorithm();
-        TaskStackViewScroller stackScroller = mStackView.getScroller();
 
         int taskViewExitToAppDuration = res.getInteger(
                 R.integer.recents_task_exit_to_app_duration);
@@ -362,8 +359,7 @@
                         postAnimationTrigger.decrementOnAnimationEnd());
                 postAnimationTrigger.increment();
 
-                stackLayout.getStackTransform(task, stackScroller.getStackScroll(), mTmpTransform,
-                        null);
+                mTmpTransform.fillIn(tv);
                 mTmpTransform.alpha = 0f;
                 mTmpTransform.rect.offset(0, taskViewAffiliateGroupEnterOffset);
                 mStackView.updateTaskViewToTransform(tv, mTmpTransform, taskAnimation);
@@ -374,16 +370,14 @@
     /**
      * Starts the delete animation for the specified {@link TaskView}.
      */
-    public void startDeleteTaskAnimation(Task deleteTask, final TaskView deleteTaskView,
+    public void startDeleteTaskAnimation(final TaskView deleteTaskView,
             final ReferenceCountedTrigger postAnimationTrigger) {
         Resources res = mStackView.getResources();
         TaskStackLayoutAlgorithm stackLayout = mStackView.getStackAlgorithm();
-        TaskStackViewScroller stackScroller = mStackView.getScroller();
 
         int taskViewRemoveAnimDuration = res.getInteger(
                 R.integer.recents_animate_task_view_remove_duration);
-        int taskViewRemoveAnimTranslationXPx = res.getDimensionPixelSize(
-                R.dimen.recents_task_view_remove_anim_translation_x);
+        int offscreenXOffset = mStackView.getMeasuredWidth() - stackLayout.mTaskRect.left;
 
         // Disabling clipping with the stack while the view is animating away, this will get
         // restored when the task is next picked up from the view pool
@@ -399,14 +393,58 @@
         });
         postAnimationTrigger.increment();
 
-        stackLayout.getStackTransform(deleteTask, stackScroller.getStackScroll(), mTmpTransform,
-                null);
+        mTmpTransform.fillIn(deleteTaskView);
         mTmpTransform.alpha = 0f;
-        mTmpTransform.rect.offset(taskViewRemoveAnimTranslationXPx, 0);
+        mTmpTransform.rect.offset(offscreenXOffset, 0);
         mStackView.updateTaskViewToTransform(deleteTaskView, mTmpTransform, taskAnimation);
     }
 
     /**
+     * Starts the delete animation for all the {@link TaskView}s.
+     */
+    public void startDeleteAllTasksAnimation(final List<TaskView> taskViews,
+                                             final ReferenceCountedTrigger postAnimationTrigger) {
+        Resources res = mStackView.getResources();
+        TaskStackLayoutAlgorithm stackLayout = mStackView.getStackAlgorithm();
+
+        int taskViewRemoveAnimDuration = res.getInteger(
+                R.integer.recents_animate_task_views_remove_all_duration);
+        int offscreenXOffset = mStackView.getMeasuredWidth() - stackLayout.mTaskRect.left;
+
+        int taskViewCount = taskViews.size();
+        int startDelayMax = 125;
+
+        for (int i = taskViewCount - 1; i >= 0; i--) {
+            TaskView tv = taskViews.get(i);
+            int indexFromFront = taskViewCount - i - 1;
+            float x = Interpolators.ACCELERATE.getInterpolation((float) indexFromFront /
+                    taskViewCount);
+            int startDelay = (int) Utilities.mapRange(x, 0, startDelayMax);
+
+            // Disabling clipping with the stack while the view is animating away
+            tv.setClipViewInStack(false);
+
+            // Compose the new animation and transform and star the animation
+            AnimationProps taskAnimation = new AnimationProps(startDelay,
+                    taskViewRemoveAnimDuration, Interpolators.FAST_OUT_LINEAR_IN,
+                    new AnimatorListenerAdapter() {
+                @Override
+                public void onAnimationEnd(Animator animation) {
+                    postAnimationTrigger.decrement();
+
+                    // Re-enable clipping with the stack (we will reuse this view)
+                    tv.setClipViewInStack(true);
+                }
+            });
+            postAnimationTrigger.increment();
+
+            mTmpTransform.fillIn(tv);
+            mTmpTransform.rect.offset(offscreenXOffset, 0);
+            mStackView.updateTaskViewToTransform(tv, mTmpTransform, taskAnimation);
+        }
+    }
+
+    /**
      * Starts the animation to focus the next {@link TaskView} when paging through recents.
      *
      * @return whether or not this will trigger a scroll in the stack
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
index 4b1faf3..2508304 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
@@ -557,15 +557,17 @@
                 mInitialScrollP = Utilities.clamp(launchTaskIndex, mMinScrollP, mMaxScrollP);
                 mInitialNormX = null;
             } else {
-                float normX = getNormalizedXFromUnfocusedY(mInitialTopOffset, FROM_TOP);
-                mInitialScrollP = Math.max(mMinScrollP, Math.min(mMaxScrollP, (mNumStackTasks - 2)) -
-                        Math.max(0, mUnfocusedRange.getAbsoluteX(normX)));
+                // We are overriding the initial two task positions, so set the initial scroll
+                // position to match the second task (aka focused task) position
+                float initialTopNormX = getNormalizedXFromUnfocusedY(mInitialTopOffset, FROM_TOP);
+                mInitialScrollP = Math.max(mMinScrollP, Math.min(mMaxScrollP, (mNumStackTasks - 2))
+                        - Math.max(0, mUnfocusedRange.getAbsoluteX(initialTopNormX)));
 
                 // Set the initial scroll to the predefined state (which differs from the stack)
                 mInitialNormX = new float[] {
                         getNormalizedXFromUnfocusedY(mSystemInsets.bottom + mInitialBottomOffset,
                                 FROM_BOTTOM),
-                        normX
+                        initialTopNormX
                 };
             }
         }
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 04f153f..5416a48 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -72,6 +72,7 @@
 import com.android.systemui.recents.events.activity.ShowStackActionButtonEvent;
 import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent;
 import com.android.systemui.recents.events.ui.DeleteTaskDataEvent;
+import com.android.systemui.recents.events.ui.DismissAllTaskViewsEvent;
 import com.android.systemui.recents.events.ui.DismissTaskViewEvent;
 import com.android.systemui.recents.events.ui.TaskViewDismissedEvent;
 import com.android.systemui.recents.events.ui.UpdateFreeformTaskViewVisibilityEvent;
@@ -1322,7 +1323,8 @@
         }
 
         // Update the stack action button visibility
-        if (mStackScroller.getStackScroll() < SHOW_STACK_ACTION_BUTTON_SCROLL_THRESHOLD) {
+        if (mStackScroller.getStackScroll() < SHOW_STACK_ACTION_BUTTON_SCROLL_THRESHOLD &&
+                mStack.getTaskCount() > 0) {
             EventBus.getDefault().send(new ShowStackActionButtonEvent(false /* translate */));
         } else {
             EventBus.getDefault().send(new HideStackActionButtonEvent());
@@ -1447,6 +1449,26 @@
     }
 
     @Override
+    public void onStackTasksRemoved(TaskStack stack) {
+        // Reset the focused task
+        resetFocusedTask(getFocusedTask());
+
+        // Return all the views to the pool
+        List<TaskView> taskViews = new ArrayList<>();
+        taskViews.addAll(getTaskViews());
+        for (int i = taskViews.size() - 1; i >= 0; i--) {
+            mViewPool.returnViewToPool(taskViews.get(i));
+        }
+
+        // Remove all the ignore tasks
+        mIgnoreTasks.clear();
+
+        // If there are no remaining tasks, then just close recents
+        EventBus.getDefault().send(new AllTaskViewsDismissedEvent(
+                R.string.recents_empty_message_dismissed_all));
+    }
+
+    @Override
     public void onStackTasksUpdated(TaskStack stack) {
         // Update the layout and immediately layout
         updateLayoutAlgorithm(false /* boundScroll */);
@@ -1597,7 +1619,8 @@
 
         if (mEnterAnimationComplete) {
             if (prevScroll > SHOW_STACK_ACTION_BUTTON_SCROLL_THRESHOLD &&
-                    curScroll <= SHOW_STACK_ACTION_BUTTON_SCROLL_THRESHOLD) {
+                    curScroll <= SHOW_STACK_ACTION_BUTTON_SCROLL_THRESHOLD &&
+                    mStack.getTaskCount() > 0) {
                 EventBus.getDefault().send(new ShowStackActionButtonEvent(true /* translate */));
             } else if (prevScroll < HIDE_STACK_ACTION_BUTTON_SCROLL_THRESHOLD &&
                     curScroll >= HIDE_STACK_ACTION_BUTTON_SCROLL_THRESHOLD) {
@@ -1705,14 +1728,42 @@
         }
     }
 
-    public final void onBusEvent(final DismissTaskViewEvent event) {
+    public final void onBusEvent(DismissTaskViewEvent event) {
         // For visible children, defer removing the task until after the animation
-        mAnimationHelper.startDeleteTaskAnimation(event.task, event.taskView,
-                event.getAnimationTrigger());
+        mAnimationHelper.startDeleteTaskAnimation(event.taskView, event.getAnimationTrigger());
+    }
+
+    public final void onBusEvent(final DismissAllTaskViewsEvent event) {
+        // Keep track of the tasks which will have their data removed
+        ArrayList<Task> tasks = new ArrayList<>(mStack.getStackTasks());
+        mAnimationHelper.startDeleteAllTasksAnimation(getTaskViews(), event.getAnimationTrigger());
+        event.addPostAnimationCallback(new Runnable() {
+            @Override
+            public void run() {
+                // Announce for accessibility
+                announceForAccessibility(getContext().getString(
+                        R.string.accessibility_recents_all_items_dismissed));
+
+                // Remove all tasks and delete the task data for all tasks
+                mStack.removeAllTasks();
+                for (int i = tasks.size() - 1; i >= 0; i--) {
+                    EventBus.getDefault().send(new DeleteTaskDataEvent(tasks.get(i)));
+                }
+
+                MetricsLogger.action(getContext(), MetricsEvent.OVERVIEW_DISMISS_ALL);
+            }
+        });
+
     }
 
     public final void onBusEvent(TaskViewDismissedEvent event) {
-        removeTaskViewFromStack(event.taskView, event.task);
+        // Announce for accessibility
+        announceForAccessibility(getContext().getString(
+                R.string.accessibility_recents_item_dismissed, event.task.title));
+
+        // Remove the task from the stack
+        mStack.removeTask(event.task, new AnimationProps(DEFAULT_SYNC_STACK_DURATION,
+                Interpolators.FAST_OUT_SLOW_IN), false /* fromDockGesture */);
         EventBus.getDefault().send(new DeleteTaskDataEvent(event.task));
 
         MetricsLogger.action(getContext(), MetricsEvent.OVERVIEW_DISMISS,
@@ -1948,28 +1999,16 @@
             }
         }
 
-        // Trigger a new layout and scroll to the initial state
-        mInitialState = event.fromMultiWindow
-                ? INITIAL_STATE_UPDATE_ALL
-                : INITIAL_STATE_UPDATE_LAYOUT_ONLY;
+        // Trigger a new layout and update to the initial state if necessary
+        if (event.fromMultiWindow) {
+            mInitialState = INITIAL_STATE_UPDATE_ALL;
+        } else if (event.fromOrientationChange) {
+            mInitialState = INITIAL_STATE_UPDATE_LAYOUT_ONLY;
+        }
         requestLayout();
     }
 
     /**
-     * Removes the task from the stack, and updates the focus to the next task in the stack if the
-     * removed TaskView was focused.
-     */
-    private void removeTaskViewFromStack(TaskView tv, Task task) {
-        // Announce for accessibility
-        tv.announceForAccessibility(getContext().getString(
-                R.string.accessibility_recents_item_dismissed, task.title));
-
-        // Remove the task from the stack
-        mStack.removeTask(task, new AnimationProps(DEFAULT_SYNC_STACK_DURATION,
-                Interpolators.FAST_OUT_SLOW_IN), false /* fromDockGesture */);
-    }
-
-    /**
      * Starts an alpha animation on the freeform workspace background.
      */
     private void animateFreeformWorkspaceBackgroundAlpha(int targetAlpha,
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
index aed19c3..ee0de1a 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackViewTouchHandler.java
@@ -356,6 +356,11 @@
             return;
         }
 
+        // Disallow tapping above and below the stack to dismiss recents
+        if (x > mSv.mLayoutAlgorithm.mStackRect.left && x < mSv.mLayoutAlgorithm.mStackRect.right) {
+            return;
+        }
+
         // If tapping on the freeform workspace background, just launch the first freeform task
         SystemServicesProxy ssp = Recents.getSystemServices();
         if (ssp.hasFreeformWorkspaceSupport()) {
@@ -507,13 +512,13 @@
         tv.setClipViewInStack(true);
         // Re-enable touch events from this task view
         tv.setTouchEnabled(true);
+        // Remove the task view from the stack
+        EventBus.getDefault().send(new TaskViewDismissedEvent(tv.getTask(), tv));
         // Update the scroll to the final scroll position from onBeginDrag()
         mSv.getScroller().setStackScroll(mTargetStackScroll, null);
         // Update the focus state to the final focus state
         mSv.getStackAlgorithm().setFocusState(TaskStackLayoutAlgorithm.STATE_UNFOCUSED);
         mSv.getStackAlgorithm().clearUnfocusedTaskOverrides();
-        // Remove the task view from the stack
-        EventBus.getDefault().send(new TaskViewDismissedEvent(tv.getTask(), tv));
         // Stop tracking this deletion animation
         mSwipeHelperAnimations.remove(v);
         // Keep track of deletions by keyboard
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index c085d80..f8ed700 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -384,7 +384,7 @@
     void dismissTask() {
         // Animate out the view and call the callback
         final TaskView tv = this;
-        DismissTaskViewEvent dismissEvent = new DismissTaskViewEvent(tv, mTask);
+        DismissTaskViewEvent dismissEvent = new DismissTaskViewEvent(tv);
         dismissEvent.addPostAnimationCallback(new Runnable() {
             @Override
             public void run() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
index dc76e61..b512393 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewTransform.java
@@ -226,4 +226,9 @@
         v.getViewBounds().setClipBottom(0);
         v.setLeftTopRightBottom(0, 0, 0, 0);
     }
+
+    @Override
+    public String toString() {
+        return "R: " + rect + " V: " + visible;
+    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
index 023c4d0..45e94f7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/NotificationPanelView.java
@@ -225,7 +225,8 @@
             public void onInflated(View v) {
                 mQsContainer = (QSContainer) v.findViewById(R.id.quick_settings_container);
                 mQsContainer.setPanelView(NotificationPanelView.this);
-                mQsContainer.getHeader().setOnClickListener(NotificationPanelView.this);
+                mQsContainer.getHeader().findViewById(R.id.expand_indicator)
+                        .setOnClickListener(NotificationPanelView.this);
             }
         });
         mClockView = (TextView) findViewById(R.id.clock_view);
@@ -1760,7 +1761,7 @@
 
     @Override
     public void onClick(View v) {
-        if (v == mQsContainer.getHeader()) {
+        if (v.getId() == R.id.expand_indicator) {
             onQsExpansionStarted();
             if (mQsExpanded) {
                 flingSettings(0 /* vel */, false /* expand */, null, true /* isClick */);
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
index 8f329c4..b507903 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
@@ -124,7 +124,6 @@
 
         // RenderThread is doing more harm than good when touching the header (to expand quick
         // settings), so disable it for this view
-        ((RippleDrawable) getBackground()).setForceSoftware(true);
         ((RippleDrawable) mSettingsButton.getBackground()).setForceSoftware(true);
 
         updateResources();
@@ -136,6 +135,12 @@
         updateResources();
     }
 
+    @Override
+    public void onRtlPropertiesChanged(int layoutDirection) {
+        super.onRtlPropertiesChanged(layoutDirection);
+        updateResources();
+    }
+
     private void updateResources() {
         FontSizeUtils.updateFontSize(mAlarmStatus, R.dimen.qs_date_collapsed_size);
         FontSizeUtils.updateFontSize(mEmergencyOnly, R.dimen.qs_emergency_calls_only_text_size);
@@ -175,6 +180,20 @@
                 .addFloat(mMultiUserSwitch, "alpha", 0, 1)
                 .setStartDelay(QSAnimator.EXPANDED_TILE_DELAY)
                 .build();
+
+        final boolean isRtl = isLayoutRtl();
+        if (isRtl && mDateTimeGroup.getWidth() == 0) {
+            mDateTimeGroup.addOnLayoutChangeListener(new OnLayoutChangeListener() {
+                @Override
+                public void onLayoutChange(View v, int left, int top, int right, int bottom,
+                        int oldLeft, int oldTop, int oldRight, int oldBottom) {
+                    mDateTimeGroup.setPivotX(getWidth());
+                    mDateTimeGroup.removeOnLayoutChangeListener(this);
+                }
+            });
+        } else {
+            mDateTimeGroup.setPivotX(isRtl ? mDateTimeGroup.getWidth() : 0);
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
index 95f26d4c..6a2ecf4e 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
@@ -654,7 +654,7 @@
         }
 
         @Override
-        public void onMultiWindowChanged() {
+        public void onMultiWindowModeChanged() {
         }
 
         @Override
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java b/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
index ab44b6a..84e785d 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/policy/UserSwitcherController.java
@@ -654,12 +654,11 @@
     }
 
     private void checkIfAddUserDisallowedByAdminOnly(UserRecord record) {
-        EnforcedAdmin admin = RestrictedLockUtils.checkIfRestrictionEnforced(mContext,
-                UserManager.DISALLOW_ADD_USER, ActivityManager.getCurrentUser());
-        if (admin != null && !RestrictedLockUtils.hasBaseUserRestriction(mContext,
-                UserManager.DISALLOW_ADD_USER, ActivityManager.getCurrentUser())) {
+        UserHandle user = UserHandle.of(ActivityManager.getCurrentUser());
+        if (mUserManager.hasUserRestriction(UserManager.DISALLOW_ADD_USER, user)
+                && !mUserManager.hasBaseUserRestriction(UserManager.DISALLOW_ADD_USER, user)) {
             record.isDisabledByAdmin = true;
-            record.enforcedAdmin = admin;
+            record.enforcedAdmin = EnforcedAdmin.MULTIPLE_ENFORCED_ADMIN;
         } else {
             record.isDisabledByAdmin = false;
             record.enforcedAdmin = null;
diff --git a/packages/SystemUI/src/com/android/systemui/volume/ZenModePanel.java b/packages/SystemUI/src/com/android/systemui/volume/ZenModePanel.java
index 6976c0b..e3ed92c 100644
--- a/packages/SystemUI/src/com/android/systemui/volume/ZenModePanel.java
+++ b/packages/SystemUI/src/com/android/systemui/volume/ZenModePanel.java
@@ -86,7 +86,7 @@
             = new Intent(Settings.ACTION_ZEN_MODE_PRIORITY_SETTINGS);
 
     private final Context mContext;
-    private final LayoutInflater mInflater;
+    protected final LayoutInflater mInflater;
     private final H mHandler = new H();
     private final ZenPrefs mPrefs;
     private final TransitionHelper mTransitionHelper = new TransitionHelper();
@@ -95,12 +95,12 @@
 
     private String mTag = TAG + "/" + Integer.toHexString(System.identityHashCode(this));
 
-    private SegmentedButtons mZenButtons;
+    protected SegmentedButtons mZenButtons;
     private View mZenIntroduction;
     private TextView mZenIntroductionMessage;
     private View mZenIntroductionConfirm;
     private TextView mZenIntroductionCustomize;
-    private LinearLayout mZenConditions;
+    protected LinearLayout mZenConditions;
     private TextView mZenAlarmWarning;
 
     private Callback mCallback;
@@ -148,10 +148,7 @@
         mTransitionHelper.dump(fd, pw, args);
     }
 
-    @Override
-    protected void onFinishInflate() {
-        super.onFinishInflate();
-
+    protected void createZenButtons() {
         mZenButtons = (SegmentedButtons) findViewById(R.id.zen_buttons);
         mZenButtons.addButton(R.string.interruption_level_none_twoline,
                 R.string.interruption_level_none_with_warning,
@@ -163,7 +160,12 @@
                 R.string.interruption_level_priority,
                 Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS);
         mZenButtons.setCallback(mZenButtonsCallback);
+    }
 
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+        createZenButtons();
         mZenIntroduction = findViewById(R.id.zen_introduction);
         mZenIntroductionMessage = (TextView) findViewById(R.id.zen_introduction_message);
         mSpTexts.add(mZenIntroductionMessage);
@@ -302,14 +304,18 @@
         }
     }
 
+    protected void addZenConditions(int count) {
+        for (int i = 0; i < count; i++) {
+            mZenConditions.addView(mInflater.inflate(R.layout.zen_mode_condition, this, false));
+        }
+    }
+
     public void init(ZenModeController controller) {
         mController = controller;
         mCountdownConditionSupported = mController.isCountdownConditionSupported();
         final int countdownDelta = mCountdownConditionSupported ? COUNTDOWN_CONDITION_COUNT : 0;
         final int minConditions = 1 /*forever*/ + countdownDelta;
-        for (int i = 0; i < minConditions; i++) {
-            mZenConditions.addView(mInflater.inflate(R.layout.zen_mode_condition, this, false));
-        }
+        addZenConditions(minConditions);
         mSessionZen = getSelectedZen(-1);
         handleUpdateManualRule(mController.getManualRule());
         if (DEBUG) Log.d(mTag, "init mExitCondition=" + mExitCondition);
@@ -917,7 +923,7 @@
         }
     }
 
-    private final SegmentedButtons.Callback mZenButtonsCallback = new SegmentedButtons.Callback() {
+    protected final SegmentedButtons.Callback mZenButtonsCallback = new SegmentedButtons.Callback() {
         @Override
         public void onSelected(final Object value, boolean fromClick) {
             if (value != null && mZenButtons.isShown() && isAttachedToWindow()) {
diff --git a/packages/SystemUI/tests/AndroidManifest.xml b/packages/SystemUI/tests/AndroidManifest.xml
index 5389c804..53a9976 100644
--- a/packages/SystemUI/tests/AndroidManifest.xml
+++ b/packages/SystemUI/tests/AndroidManifest.xml
@@ -23,6 +23,8 @@
     <uses-permission android:name="android.permission.INTERACT_ACROSS_USERS_FULL" />
     <uses-permission android:name="android.permission.WRITE_SECURE_SETTINGS" />
     <uses-permission android:name="android.permission.MANAGE_USERS" />
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
 
     <application>
         <uses-library android:name="android.test.runner" />
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/TouchAnimatorTests.java b/packages/SystemUI/tests/src/com/android/systemui/qs/TouchAnimatorTests.java
index 1d81fd4..e9b85b9 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/TouchAnimatorTests.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/TouchAnimatorTests.java
@@ -14,11 +14,13 @@
 
 package com.android.systemui.qs;
 
+import android.test.suitebuilder.annotation.SmallTest;
 import android.view.View;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.qs.TouchAnimator.Listener;
 import org.mockito.Mockito;
 
+@SmallTest
 public class TouchAnimatorTests extends SysuiTestCase {
 
     private Listener mTouchListener;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileLifecycleManagerTests.java b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileLifecycleManagerTests.java
index f86c6a4..6a81659 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileLifecycleManagerTests.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileLifecycleManagerTests.java
@@ -32,9 +32,11 @@
 import android.service.quicksettings.IQSTileService;
 import android.service.quicksettings.Tile;
 import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
 import android.util.ArraySet;
 import android.util.Log;
 
+@SmallTest
 public class TileLifecycleManagerTests extends AndroidTestCase {
     public static final String TILE_UPDATE_BROADCAST = "com.android.systemui.tests.TILE_UPDATE";
     public static final String EXTRA_CALLBACK = "callback";
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServiceManagerTests.java b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServiceManagerTests.java
index efdb50d..f24b541 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServiceManagerTests.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServiceManagerTests.java
@@ -19,10 +19,12 @@
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.service.quicksettings.TileService;
+import android.test.suitebuilder.annotation.SmallTest;
 import com.android.systemui.SysuiTestCase;
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mockito;
 
+@SmallTest
 public class TileServiceManagerTests extends SysuiTestCase {
 
     private TileServices mTileServices;
diff --git a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTests.java b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTests.java
index 01514646b..94c98d6 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTests.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/qs/external/TileServicesTests.java
@@ -17,6 +17,7 @@
 
 import android.content.ComponentName;
 import android.os.Looper;
+import android.test.suitebuilder.annotation.SmallTest;
 import com.android.systemui.SysuiTestCase;
 import com.android.systemui.statusbar.phone.QSTileHost;
 import com.android.systemui.statusbar.policy.DataSaverController;
@@ -27,6 +28,7 @@
 
 import java.util.ArrayList;
 
+@SmallTest
 public class TileServicesTests extends SysuiTestCase {
     private static int NUM_FAKES = TileServices.DEFAULT_MAX_BOUND * 2;
 
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index d6f1499..8e4bf24 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -2017,6 +2017,69 @@
     // action pass package name of calling package.
     ACTION_SCOPED_DIRECTORY_ACCESS_DENIED_AND_PERSIST_BY_PACKAGE = 356;
 
+    // Logged when a user dismisses all task in overview
+    OVERVIEW_DISMISS_ALL = 357;
+
+    // Quick Settings -> Edit
+    QS_EDIT = 358;
+
+    // Quick Settings -> Edit -> Overflow -> Reset
+    ACTION_QS_EDIT_RESET = 359;
+
+    // QS -> Edit - Drag a tile out of the active tiles.
+    // The _SPEC contains either the spec of the tile or
+    // the package of the 3rd party app in the PKG field.
+    ACTION_QS_EDIT_REMOVE_SPEC = 360;
+    ACTION_QS_EDIT_REMOVE = 361;
+
+    // QS -> Edit - Drag a tile into the active tiles.
+    // The _SPEC contains either the spec of the tile or
+    // the package of the 3rd party app in the PKG field.
+    ACTION_QS_EDIT_ADD_SPEC = 362;
+    ACTION_QS_EDIT_ADD = 363;
+
+    // QS -> Edit - Drag a tile within the active tiles.
+    // The _SPEC contains either the spec of the tile or
+    // the package of the 3rd party app in the PKG field.
+    ACTION_QS_EDIT_MOVE_SPEC = 364;
+    ACTION_QS_EDIT_MOVE = 365;
+
+    // Long-press on a QS tile. Tile spec in package field.
+    ACTION_QS_LONG_PRESS = 366;
+
+    // OPEN: SUW Welcome Screen -> Vision Settings
+    // CATEGORY: SETTINGS
+    // OS: N
+    SUW_ACCESSIBILITY = 367;
+
+    // OPEN: SUW Welcome Screen -> Vision Settings -> Magnification gesture
+    // ACTION: New magnification gesture configuration is chosen
+    //  SUBTYPE: 0 is off, 1 is on
+    // CATEGORY: SETTINGS
+    // OS: N
+    SUW_ACCESSIBILITY_TOGGLE_SCREEN_MAGNIFICATION = 368;
+
+    // OPEN: SUW Welcome Screen -> Vision Settings -> Font size
+    // ACTION: New font size is chosen
+    //  SUBTYPE: 0 is small, 1 is default, 2 is large, 3 is largest
+    // CATEGORY: SETTINGS
+    // OS: N
+    SUW_ACCESSIBILITY_FONT_SIZE = 369;
+
+    // OPEN: SUW Welcome Screen -> Vision Settings -> Display size
+    // ACTION: New display size is chosen
+    //  SUBTYPE: 0 is small, 1 is default, 2 is large, 3 is larger, 4 is largest
+    // CATEGORY: SETTINGS
+    // OS: N
+    SUW_ACCESSIBILITY_DISPLAY_SIZE = 370;
+
+    // OPEN: SUW Welcome Screen -> Vision Settings -> TalkBack
+    // ACTION: New screen reader configuration is chosen
+    //  SUBTYPE: 0 is off, 1 is on
+    // CATEGORY: SETTINGS
+    // OS: N
+    SUW_ACCESSIBILITY_TOGGLE_SCREEN_READER = 371;
+
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS
   }
diff --git a/rs/java/android/renderscript/Allocation.java b/rs/java/android/renderscript/Allocation.java
index f2ef065..81f63ae 100644
--- a/rs/java/android/renderscript/Allocation.java
+++ b/rs/java/android/renderscript/Allocation.java
@@ -296,8 +296,13 @@
     }
 
     /**
-     * Enable/Disable AutoPadding for Vec3 elements.
-     * By default: Diabled.
+     * Enable/Disable AutoPadding for Vec3 Elements.
+     *
+     * <p> Vec3 Elements, such as {@link Element#U8_3} are treated as Vec4 Elements
+     * with the fourth vector element used as padding. Enabling the AutoPadding feature
+     * will automatically add/remove the padding when you copy to/from an Allocation
+     * with a Vec3 Element.
+     * <p> By default: Disabled.
      *
      * @param useAutoPadding True: enable AutoPadding; False: disable AutoPadding
      *
diff --git a/rs/java/android/renderscript/Script.java b/rs/java/android/renderscript/Script.java
index 2b06780..f6f93cb 100644
--- a/rs/java/android/renderscript/Script.java
+++ b/rs/java/android/renderscript/Script.java
@@ -541,21 +541,22 @@
 
     /**
      * Class for specifying the specifics about how a kernel will be
-     * launched
+     * launched.
      *
      * This class can specify a potential range of cells on which to
      * run a kernel.  If no set is called for a dimension then this
      * class will have no impact on that dimension when the kernel
      * is executed.
      *
-     * The forEach launch will operate over the intersection of the
-     * dimensions.
+     * The forEach kernel launch will operate over the intersection of
+     * the dimensions.
      *
      * Example:
      * LaunchOptions with setX(5, 15)
      * Allocation with dimension X=10, Y=10
-     * The resulting forEach run would execute over x = 5 to 10 and
-     * y = 0 to 10.
+     * The resulting forEach run would execute over:
+     * x = 5 to 9 (inclusive) and
+     * y = 0 to 9 (inclusive).
      *
      *
      */
@@ -569,11 +570,11 @@
         private int strategy;
 
         /**
-         * Set the X range.  If the end value is set to 0 the X dimension is not
-         * clipped.
+         * Set the X range. xstartArg is the lowest coordinate of the range,
+         * and xendArg-1 is the highest coordinate of the range.
          *
          * @param xstartArg Must be >= 0
-         * @param xendArg Must be >= xstartArg
+         * @param xendArg Must be > xstartArg
          *
          * @return LaunchOptions
          */
@@ -587,11 +588,11 @@
         }
 
         /**
-         * Set the Y range.  If the end value is set to 0 the Y dimension is not
-         * clipped.
+         * Set the Y range. ystartArg is the lowest coordinate of the range,
+         * and yendArg-1 is the highest coordinate of the range.
          *
          * @param ystartArg Must be >= 0
-         * @param yendArg Must be >= ystartArg
+         * @param yendArg Must be > ystartArg
          *
          * @return LaunchOptions
          */
@@ -605,11 +606,11 @@
         }
 
         /**
-         * Set the Z range.  If the end value is set to 0 the Z dimension is not
-         * clipped.
+         * Set the Z range. zstartArg is the lowest coordinate of the range,
+         * and zendArg-1 is the highest coordinate of the range.
          *
          * @param zstartArg Must be >= 0
-         * @param zendArg Must be >= zstartArg
+         * @param zendArg Must be > zstartArg
          *
          * @return LaunchOptions
          */
diff --git a/rs/java/android/renderscript/ScriptIntrinsicConvolve3x3.java b/rs/java/android/renderscript/ScriptIntrinsicConvolve3x3.java
index 76da781..339e0e9 100644
--- a/rs/java/android/renderscript/ScriptIntrinsicConvolve3x3.java
+++ b/rs/java/android/renderscript/ScriptIntrinsicConvolve3x3.java
@@ -32,10 +32,9 @@
      * Supported elements types are {@link Element#U8}, {@link
      * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4},
      * {@link Element#F32}, {@link Element#F32_2}, {@link
-     * Element#F32_3}, and {@link Element#F32_4}
+     * Element#F32_3}, and {@link Element#F32_4}.
      *
-     * The default coefficients are.
-     *
+     * <p> The default coefficients are:
      * <code>
      * <p> [ 0,  0,  0 ]
      * <p> [ 0,  1,  0 ]
@@ -67,7 +66,7 @@
     }
 
     /**
-     * Set the input of the blur.
+     * Set the input of the 3x3 convolve.
      * Must match the element type supplied during create.
      *
      * @param ain The input allocation.
@@ -80,7 +79,7 @@
     /**
      * Set the coefficients for the convolve.
      *
-     * The convolve layout is
+     * <p> The convolve layout is:
      * <code>
      * <p> [ 0,  1,  2 ]
      * <p> [ 3,  4,  5 ]
diff --git a/rs/java/android/renderscript/ScriptIntrinsicConvolve5x5.java b/rs/java/android/renderscript/ScriptIntrinsicConvolve5x5.java
index 2d37600..a288cee 100644
--- a/rs/java/android/renderscript/ScriptIntrinsicConvolve5x5.java
+++ b/rs/java/android/renderscript/ScriptIntrinsicConvolve5x5.java
@@ -32,9 +32,9 @@
      * Supported elements types are {@link Element#U8}, {@link
      * Element#U8_2}, {@link Element#U8_3}, {@link Element#U8_4},
      * {@link Element#F32}, {@link Element#F32_2}, {@link
-     * Element#F32_3}, and {@link Element#F32_4}
+     * Element#F32_3}, and {@link Element#F32_4}.
      *
-     * The default coefficients are.
+     * <p> The default coefficients are:
      * <code>
      * <p> [ 0,  0,  0,  0,  0  ]
      * <p> [ 0,  0,  0,  0,  0  ]
@@ -66,7 +66,7 @@
     }
 
     /**
-     * Set the input of the blur.
+     * Set the input of the 5x5 convolve.
      * Must match the element type supplied during create.
      *
      * @param ain The input allocation.
@@ -79,7 +79,7 @@
     /**
     * Set the coefficients for the convolve.
     *
-    * The convolve layout is
+    * <p> The convolve layout is:
     * <code>
     * <p> [ 0,  1,  2,  3,  4  ]
     * <p> [ 5,  6,  7,  8,  9  ]
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index e3dac28..4b96e7a 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -1774,17 +1774,22 @@
 
     private void updateSoftKeyboardShowModeLocked(UserState userState) {
         final int userId = userState.mUserId;
-        if (userId == mCurrentUserId) {
-            // Check whether any Accessibility Services are still enabled and, if not, remove flag
-            // requesting no soft keyboard
-            final boolean accessibilityRequestingNoIme = userState.mSoftKeyboardShowMode == 1;
-            if (accessibilityRequestingNoIme && !userState.isHandlingAccessibilityEvents()) {
-                // No active Accessibility Services can be requesting the soft keyboard to be hidden
+        // Only check whether we need to reset the soft keyboard mode if it is not set to the
+        // default.
+        if ((userId == mCurrentUserId) && (userState.mSoftKeyboardShowMode != 0)) {
+            // Check whether the last Accessibility Service that changed the soft keyboard mode to
+            // something other than the default is still enabled and, if not, remove flag and
+            // reset to the default soft keyboard behavior.
+            boolean serviceChangingSoftKeyboardModeIsEnabled =
+                    userState.mEnabledServices.contains(userState.mServiceChangingSoftKeyboardMode);
+
+            if (!serviceChangingSoftKeyboardModeIsEnabled) {
                 Settings.Secure.putIntForUser(mContext.getContentResolver(),
                         Settings.Secure.ACCESSIBILITY_SOFT_KEYBOARD_MODE,
                         0,
                         userState.mUserId);
                 userState.mSoftKeyboardShowMode = 0;
+                userState.mServiceChangingSoftKeyboardMode = null;
             }
 
             notifySoftKeyboardShowModeChangedLocked(userState.mSoftKeyboardShowMode);
@@ -2966,6 +2971,14 @@
 
             final long identity = Binder.clearCallingIdentity();
             try {
+                // Keep track of the last service to request a non-default show mode. The show mode
+                // should be restored to default should this service be disabled.
+                if (showMode == Settings.Secure.SHOW_MODE_AUTO) {
+                    userState.mServiceChangingSoftKeyboardMode = null;
+                } else {
+                    userState.mServiceChangingSoftKeyboardMode = mComponentName;
+                }
+
                 Settings.Secure.putIntForUser(mContext.getContentResolver(),
                         Settings.Secure.ACCESSIBILITY_SOFT_KEYBOARD_MODE, showMode,
                         userState.mUserId);
@@ -4115,6 +4128,8 @@
         public final Set<ComponentName> mTouchExplorationGrantedServices =
                 new HashSet<>();
 
+        public ComponentName mServiceChangingSoftKeyboardMode;
+
         public int mLastSentClientState = -1;
 
         public int mSoftKeyboardShowMode = 0;
diff --git a/services/core/java/com/android/server/DeviceIdleController.java b/services/core/java/com/android/server/DeviceIdleController.java
index 4749417..423f945 100644
--- a/services/core/java/com/android/server/DeviceIdleController.java
+++ b/services/core/java/com/android/server/DeviceIdleController.java
@@ -108,11 +108,12 @@
 
     private static final boolean COMPRESS_TIME = false;
 
-    private static final int EVENT_BUFFER_SIZE = 40;
+    private static final int EVENT_BUFFER_SIZE = 100;
 
     private AlarmManager mAlarmManager;
     private IBatteryStats mBatteryStats;
     private PowerManagerInternal mLocalPowerManager;
+    private PowerManager mPowerManager;
     private AlarmManagerService.LocalService mLocalAlarmManager;
     private INetworkPolicyManager mNetworkPolicyManager;
     private DisplayManager mDisplayManager;
@@ -168,16 +169,19 @@
     private static final int LIGHT_STATE_ACTIVE = 0;
     /** Device is inactive (screen off) and we are waiting to for the first light idle. */
     private static final int LIGHT_STATE_INACTIVE = 1;
+    /** Device is about to go idle for the first time, wait for current work to complete. */
+    private static final int LIGHT_STATE_PRE_IDLE = 3;
     /** Device is in the light idle state, trying to stay asleep as much as possible. */
-    private static final int LIGHT_STATE_IDLE = 2;
+    private static final int LIGHT_STATE_IDLE = 4;
     /** Device is in the light idle state, but temporarily out of idle to do regular maintenance. */
-    private static final int LIGHT_STATE_IDLE_MAINTENANCE = 3;
+    private static final int LIGHT_STATE_IDLE_MAINTENANCE = 5;
     /** Device light idle state is overriden, now applying deep doze state. */
-    private static final int LIGHT_STATE_OVERRIDE = 4;
+    private static final int LIGHT_STATE_OVERRIDE = 6;
     private static String lightStateToString(int state) {
         switch (state) {
             case LIGHT_STATE_ACTIVE: return "ACTIVE";
             case LIGHT_STATE_INACTIVE: return "INACTIVE";
+            case LIGHT_STATE_PRE_IDLE: return "PRE_IDLE";
             case LIGHT_STATE_IDLE: return "IDLE";
             case LIGHT_STATE_IDLE_MAINTENANCE: return "IDLE_MAINTENANCE";
             case LIGHT_STATE_OVERRIDE: return "OVERRIDE";
@@ -192,11 +196,13 @@
     private long mNextAlarmTime;
     private long mNextIdlePendingDelay;
     private long mNextIdleDelay;
+    private long mNextLightIdleDelay;
     private long mNextLightAlarmTime;
     private long mCurIdleBudget;
     private long mMaintenanceStartTime;
 
     private int mActiveIdleOpCount;
+    private PowerManager.WakeLock mActiveIdleWakeLock;
     private IBinder mDownloadServiceActive;
     private boolean mJobsActive;
     private boolean mAlarmsActive;
@@ -343,19 +349,18 @@
         }
     };
 
-    private final AlarmManager.OnAlarmListener mMaintenanceMinCheckListener
-            = new AlarmManager.OnAlarmListener() {
-        @Override
-        public void onAlarm() {
-            synchronized (DeviceIdleController.this) {
-                exitMaintenanceEarlyIfNeededLocked();
-            }
-        }
-    };
-
     private final BroadcastReceiver mIdleStartedDoneReceiver = new BroadcastReceiver() {
         @Override public void onReceive(Context context, Intent intent) {
-            decActiveIdleOps();
+            // When coming out of a deep idle, we will add in some delay before we allow
+            // the system to settle down and finish the maintenance window.  This is
+            // to give a chance for any pending work to be scheduled.
+            if (PowerManager.ACTION_DEVICE_IDLE_MODE_CHANGED.equals(intent.getAction())) {
+                mHandler.sendEmptyMessageDelayed(MSG_FINISH_IDLE_OP,
+                        mConstants.MIN_DEEP_MAINTENANCE_TIME);
+            } else {
+                mHandler.sendEmptyMessageDelayed(MSG_FINISH_IDLE_OP,
+                        mConstants.MIN_LIGHT_MAINTENANCE_TIME);
+            }
         }
     };
 
@@ -477,7 +482,12 @@
      */
     private final class Constants extends ContentObserver {
         // Key names stored in the settings value.
+        private static final String KEY_LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT
+                = "light_after_inactive_to";
+        private static final String KEY_LIGHT_PRE_IDLE_TIMEOUT = "light_pre_idle_to";
         private static final String KEY_LIGHT_IDLE_TIMEOUT = "light_idle_to";
+        private static final String KEY_LIGHT_IDLE_FACTOR = "light_idle_factor";
+        private static final String KEY_LIGHT_MAX_IDLE_TIMEOUT = "light_max_idle_to";
         private static final String KEY_LIGHT_IDLE_MAINTENANCE_MIN_BUDGET
                 = "light_idle_maintenance_min_budget";
         private static final String KEY_LIGHT_IDLE_MAINTENANCE_MAX_BUDGET
@@ -505,14 +515,44 @@
                 "sms_temp_app_whitelist_duration";
 
         /**
-         * This is the time, after becoming inactive, that we will start going
-         * in to light-weight idle mode.
+         * This is the time, after becoming inactive, that we go in to the first
+         * light-weight idle mode.
+         * @see Settings.Global#DEVICE_IDLE_CONSTANTS
+         * @see #KEY_LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT
+         */
+        public long LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT;
+
+        /**
+         * This is amount of time we will wait from the point where we decide we would
+         * like to go idle until we actually do, while waiting for jobs and other current
+         * activity to finish.
+         * @see Settings.Global#DEVICE_IDLE_CONSTANTS
+         * @see #KEY_LIGHT_PRE_IDLE_TIMEOUT
+         */
+        public long LIGHT_PRE_IDLE_TIMEOUT;
+
+        /**
+         * This is the initial time that we will run in idle maintenance mode.
          * @see Settings.Global#DEVICE_IDLE_CONSTANTS
          * @see #KEY_LIGHT_IDLE_TIMEOUT
          */
         public long LIGHT_IDLE_TIMEOUT;
 
         /**
+         * Scaling factor to apply to the light idle mode time each time we complete a cycle.
+         * @see Settings.Global#DEVICE_IDLE_CONSTANTS
+         * @see #KEY_LIGHT_IDLE_FACTOR
+         */
+        public float LIGHT_IDLE_FACTOR;
+
+        /**
+         * This is the maximum time we will run in idle maintenence mode.
+         * @see Settings.Global#DEVICE_IDLE_CONSTANTS
+         * @see #KEY_LIGHT_MAX_IDLE_TIMEOUT
+         */
+        public long LIGHT_MAX_IDLE_TIMEOUT;
+
+        /**
          * This is the minimum amount of time we want to make available for maintenance mode
          * when lightly idling.  That is, we will always have at least this amount of time
          * available maintenance before timing out and cutting off maintenance mode.
@@ -716,7 +756,16 @@
                     Slog.e(TAG, "Bad device idle settings", e);
                 }
 
+                LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT = mParser.getLong(
+                        KEY_LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT,
+                        !COMPRESS_TIME ? 5 * 60 * 1000L : 15 * 1000L);
+                LIGHT_PRE_IDLE_TIMEOUT = mParser.getLong(KEY_LIGHT_PRE_IDLE_TIMEOUT,
+                        !COMPRESS_TIME ? 10 * 60 * 1000L : 30 * 1000L);
                 LIGHT_IDLE_TIMEOUT = mParser.getLong(KEY_LIGHT_IDLE_TIMEOUT,
+                        !COMPRESS_TIME ? 5 * 60 * 1000L : 15 * 1000L);
+                LIGHT_IDLE_FACTOR = mParser.getFloat(KEY_LIGHT_IDLE_FACTOR,
+                        2f);
+                LIGHT_MAX_IDLE_TIMEOUT = mParser.getLong(KEY_LIGHT_MAX_IDLE_TIMEOUT,
                         !COMPRESS_TIME ? 15 * 60 * 1000L : 60 * 1000L);
                 LIGHT_IDLE_MAINTENANCE_MIN_BUDGET = mParser.getLong(
                         KEY_LIGHT_IDLE_MAINTENANCE_MIN_BUDGET,
@@ -770,10 +819,26 @@
         void dump(PrintWriter pw) {
             pw.println("  Settings:");
 
+            pw.print("    "); pw.print(KEY_LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT); pw.print("=");
+            TimeUtils.formatDuration(LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT, pw);
+            pw.println();
+
+            pw.print("    "); pw.print(KEY_LIGHT_PRE_IDLE_TIMEOUT); pw.print("=");
+            TimeUtils.formatDuration(LIGHT_PRE_IDLE_TIMEOUT, pw);
+            pw.println();
+
             pw.print("    "); pw.print(KEY_LIGHT_IDLE_TIMEOUT); pw.print("=");
             TimeUtils.formatDuration(LIGHT_IDLE_TIMEOUT, pw);
             pw.println();
 
+            pw.print("    "); pw.print(KEY_LIGHT_IDLE_FACTOR); pw.print("=");
+            pw.print(LIGHT_IDLE_FACTOR);
+            pw.println();
+
+            pw.print("    "); pw.print(KEY_LIGHT_MAX_IDLE_TIMEOUT); pw.print("=");
+            TimeUtils.formatDuration(LIGHT_MAX_IDLE_TIMEOUT, pw);
+            pw.println();
+
             pw.print("    "); pw.print(KEY_LIGHT_IDLE_MAINTENANCE_MIN_BUDGET); pw.print("=");
             TimeUtils.formatDuration(LIGHT_IDLE_MAINTENANCE_MIN_BUDGET, pw);
             pw.println();
@@ -892,6 +957,7 @@
     static final int MSG_REPORT_ACTIVE = 5;
     static final int MSG_TEMP_APP_WHITELIST_TIMEOUT = 6;
     static final int MSG_REPORT_MAINTENANCE_ACTIVITY = 7;
+    static final int MSG_FINISH_IDLE_OP = 8;
 
     final class MyHandler extends Handler {
         MyHandler(Looper looper) {
@@ -996,6 +1062,9 @@
                         mMaintenanceActivityListeners.finishBroadcast();
                     }
                 } break;
+                case MSG_FINISH_IDLE_OP: {
+                    decActiveIdleOps();
+                } break;
             }
         }
     }
@@ -1252,6 +1321,10 @@
                 mAlarmManager = (AlarmManager) getContext().getSystemService(Context.ALARM_SERVICE);
                 mBatteryStats = BatteryStatsService.getService();
                 mLocalPowerManager = getLocalService(PowerManagerInternal.class);
+                mPowerManager = getContext().getSystemService(PowerManager.class);
+                mActiveIdleWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
+                        "deviceidle_maint");
+                mActiveIdleWakeLock.setReferenceCounted(false);
                 mLocalAlarmManager = getLocalService(AlarmManagerService.LocalService.class);
                 mNetworkPolicyManager = INetworkPolicyManager.Stub.asInterface(
                         ServiceManager.getService(Context.NETWORK_POLICY_SERVICE));
@@ -1640,7 +1713,6 @@
             mInactiveTimeout = mConstants.INACTIVE_TIMEOUT;
             mCurIdleBudget = 0;
             mMaintenanceStartTime = 0;
-            mAlarmManager.cancel(mMaintenanceMinCheckListener);
             resetIdleManagementLocked();
             resetLightIdleManagementLocked();
             addEvent(EVENT_NORMAL);
@@ -1663,7 +1735,7 @@
                 mLightState = LIGHT_STATE_INACTIVE;
                 if (DEBUG) Slog.d(TAG, "Moved from LIGHT_STATE_ACTIVE to LIGHT_STATE_INACTIVE");
                 resetLightIdleManagementLocked();
-                scheduleLightAlarmLocked(mConstants.LIGHT_IDLE_TIMEOUT);
+                scheduleLightAlarmLocked(mConstants.LIGHT_IDLE_AFTER_INACTIVE_TIMEOUT);
                 EventLogTags.writeDeviceIdleLight(mLightState, "no activity");
             }
         }
@@ -1672,6 +1744,7 @@
     void resetIdleManagementLocked() {
         mNextIdlePendingDelay = 0;
         mNextIdleDelay = 0;
+        mNextLightIdleDelay = 0;
         cancelAlarmLocked();
         cancelLocatingLocked();
         stopMonitoringMotionLocked();
@@ -1704,7 +1777,19 @@
         switch (mLightState) {
             case LIGHT_STATE_INACTIVE:
                 mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
+                // Reset the upcoming idle delays.
+                mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
                 mMaintenanceStartTime = 0;
+                if (!isOpsInactiveLocked()) {
+                    // We have some active ops going on...  give them a chance to finish
+                    // before going in to our first idle.
+                    mLightState = LIGHT_STATE_PRE_IDLE;
+                    EventLogTags.writeDeviceIdleLight(mLightState, reason);
+                    scheduleLightAlarmLocked(mConstants.LIGHT_PRE_IDLE_TIMEOUT);
+                    break;
+                }
+                // Nothing active, fall through to immediately idle.
+            case LIGHT_STATE_PRE_IDLE:
             case LIGHT_STATE_IDLE_MAINTENANCE:
                 if (mMaintenanceStartTime != 0) {
                     long duration = SystemClock.elapsedRealtime() - mMaintenanceStartTime;
@@ -1717,17 +1802,22 @@
                     }
                 }
                 mMaintenanceStartTime = 0;
-                scheduleLightAlarmLocked(mConstants.LIGHT_IDLE_TIMEOUT);
+                scheduleLightAlarmLocked(mNextLightIdleDelay);
+                mNextLightIdleDelay = Math.min(mConstants.LIGHT_MAX_IDLE_TIMEOUT,
+                        (long)(mNextLightIdleDelay * mConstants.LIGHT_IDLE_FACTOR));
+                if (mNextLightIdleDelay < mConstants.LIGHT_IDLE_TIMEOUT) {
+                    mNextLightIdleDelay = mConstants.LIGHT_IDLE_TIMEOUT;
+                }
                 if (DEBUG) Slog.d(TAG, "Moved to LIGHT_STATE_IDLE.");
                 mLightState = LIGHT_STATE_IDLE;
                 EventLogTags.writeDeviceIdleLight(mLightState, reason);
                 addEvent(EVENT_LIGHT_IDLE);
                 mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON_LIGHT);
-                mAlarmManager.cancel(mMaintenanceMinCheckListener);
                 break;
             case LIGHT_STATE_IDLE:
                 // We have been idling long enough, now it is time to do some work.
                 mActiveIdleOpCount = 1;
+                mActiveIdleWakeLock.acquire();
                 mMaintenanceStartTime = SystemClock.elapsedRealtime();
                 if (mCurIdleBudget < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
                     mCurIdleBudget = mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
@@ -1741,9 +1831,6 @@
                 EventLogTags.writeDeviceIdleLight(mLightState, reason);
                 addEvent(EVENT_LIGHT_MAINTENANCE);
                 mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
-                mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME,
-                        mMaintenanceStartTime + mConstants.MIN_LIGHT_MAINTENANCE_TIME,
-                        "DeviceIdleController.maint-check", mMaintenanceMinCheckListener, mHandler);
                 break;
         }
     }
@@ -1820,6 +1907,7 @@
                 cancelAlarmLocked();
                 cancelLocatingLocked();
                 mAnyMotionDetector.stop();
+
             case STATE_IDLE_MAINTENANCE:
                 scheduleAlarmLocked(mNextIdleDelay, true);
                 if (DEBUG) Slog.d(TAG, "Moved to STATE_IDLE. Next alarm in " + mNextIdleDelay +
@@ -1827,6 +1915,9 @@
                 mNextIdleDelay = (long)(mNextIdleDelay * mConstants.IDLE_FACTOR);
                 if (DEBUG) Slog.d(TAG, "Setting mNextIdleDelay = " + mNextIdleDelay);
                 mNextIdleDelay = Math.min(mNextIdleDelay, mConstants.MAX_IDLE_TIMEOUT);
+                if (mNextIdleDelay < mConstants.IDLE_TIMEOUT) {
+                    mNextIdleDelay = mConstants.IDLE_TIMEOUT;
+                }
                 mState = STATE_IDLE;
                 if (mLightState != LIGHT_STATE_OVERRIDE) {
                     mLightState = LIGHT_STATE_OVERRIDE;
@@ -1835,24 +1926,24 @@
                 EventLogTags.writeDeviceIdle(mState, reason);
                 addEvent(EVENT_DEEP_IDLE);
                 mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON);
-                mAlarmManager.cancel(mMaintenanceMinCheckListener);
                 break;
             case STATE_IDLE:
                 // We have been idling long enough, now it is time to do some work.
                 mActiveIdleOpCount = 1;
+                mActiveIdleWakeLock.acquire();
                 scheduleAlarmLocked(mNextIdlePendingDelay, false);
                 if (DEBUG) Slog.d(TAG, "Moved from STATE_IDLE to STATE_IDLE_MAINTENANCE. " +
                         "Next alarm in " + mNextIdlePendingDelay + " ms.");
                 mMaintenanceStartTime = SystemClock.elapsedRealtime();
                 mNextIdlePendingDelay = Math.min(mConstants.MAX_IDLE_PENDING_TIMEOUT,
                         (long)(mNextIdlePendingDelay * mConstants.IDLE_PENDING_FACTOR));
+                if (mNextIdlePendingDelay < mConstants.IDLE_PENDING_TIMEOUT) {
+                    mNextIdlePendingDelay = mConstants.IDLE_PENDING_TIMEOUT;
+                }
                 mState = STATE_IDLE_MAINTENANCE;
                 EventLogTags.writeDeviceIdle(mState, reason);
                 addEvent(EVENT_DEEP_MAINTENANCE);
                 mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
-                mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME,
-                        mMaintenanceStartTime + mConstants.MIN_DEEP_MAINTENANCE_TIME,
-                        "DeviceIdleController.maint-check", mMaintenanceMinCheckListener, mHandler);
                 break;
         }
     }
@@ -1868,6 +1959,7 @@
             mActiveIdleOpCount--;
             if (mActiveIdleOpCount <= 0) {
                 exitMaintenanceEarlyIfNeededLocked();
+                mActiveIdleWakeLock.release();
             }
         }
     }
@@ -1939,10 +2031,15 @@
         mHandler.sendMessage(msg);
     }
 
+    boolean isOpsInactiveLocked() {
+        return mActiveIdleOpCount <= 0 && mDownloadServiceActive == null
+                && !mJobsActive && !mAlarmsActive;
+    }
+
     void exitMaintenanceEarlyIfNeededLocked() {
-        if (mState == STATE_IDLE_MAINTENANCE || mLightState == LIGHT_STATE_IDLE_MAINTENANCE) {
-            if (mActiveIdleOpCount <= 0 && mDownloadServiceActive == null
-                    && !mJobsActive && !mAlarmsActive) {
+        if (mState == STATE_IDLE_MAINTENANCE || mLightState == LIGHT_STATE_IDLE_MAINTENANCE
+                || mLightState == LIGHT_STATE_PRE_IDLE) {
+            if (isOpsInactiveLocked()) {
                 final long now = SystemClock.elapsedRealtime();
                 if (DEBUG) {
                     StringBuilder sb = new StringBuilder();
@@ -1953,13 +2050,11 @@
                     Slog.d(TAG, sb.toString());
                 }
                 if (mState == STATE_IDLE_MAINTENANCE) {
-                    if (now >= (mMaintenanceStartTime + mConstants.MIN_DEEP_MAINTENANCE_TIME)) {
-                        stepIdleStateLocked("s:early");
-                    }
+                    stepIdleStateLocked("s:early");
+                } else if (mLightState == LIGHT_STATE_PRE_IDLE) {
+                    stepLightIdleStateLocked("s:predone");
                 } else {
-                    if (now >= (mMaintenanceStartTime + mConstants.MIN_LIGHT_MAINTENANCE_TIME)) {
-                        stepLightIdleStateLocked("s:early");
-                    }
+                    stepLightIdleStateLocked("s:early");
                 }
             }
         }
@@ -2735,6 +2830,11 @@
                 TimeUtils.formatDuration(mNextIdleDelay, pw);
                 pw.println();
             }
+            if (mNextLightIdleDelay != 0) {
+                pw.print("  mNextIdleDelay=");
+                TimeUtils.formatDuration(mNextLightIdleDelay, pw);
+                pw.println();
+            }
             if (mNextLightAlarmTime != 0) {
                 pw.print("  mNextLightAlarmTime=");
                 TimeUtils.formatDuration(mNextLightAlarmTime, SystemClock.elapsedRealtime(), pw);
diff --git a/services/core/java/com/android/server/InputMethodManagerService.java b/services/core/java/com/android/server/InputMethodManagerService.java
index e042483..77b3111 100644
--- a/services/core/java/com/android/server/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/InputMethodManagerService.java
@@ -1715,8 +1715,9 @@
             // exists in the IME switcher dialog.  Might be OK to remove this condition once
             // SHOW_IME_WITH_HARD_KEYBOARD settings finds a good place to live.
             return true;
+        } else if ((visibility & InputMethodService.IME_VISIBLE) == 0) {
+            return false;
         }
-        if ((visibility & InputMethodService.IME_VISIBLE) == 0) return false;
 
         List<InputMethodInfo> imis = mSettings.getEnabledInputMethodListLocked();
         final int N = imis.size();
diff --git a/services/core/java/com/android/server/MountService.java b/services/core/java/com/android/server/MountService.java
index 45008dc..994e1d0 100644
--- a/services/core/java/com/android/server/MountService.java
+++ b/services/core/java/com/android/server/MountService.java
@@ -165,6 +165,7 @@
         public void onStart() {
             mMountService = new MountService(getContext());
             publishBinderService("mount", mMountService);
+            mMountService.start();
         }
 
         @Override
@@ -430,9 +431,13 @@
         = { "password", "default", "pattern", "pin" };
 
     private final Context mContext;
+
     private final NativeDaemonConnector mConnector;
     private final NativeDaemonConnector mCryptConnector;
 
+    private final Thread mConnectorThread;
+    private final Thread mCryptConnectorThread;
+
     private volatile boolean mSystemReady = false;
     private volatile boolean mBootCompleted = false;
     private volatile boolean mDaemonConnected = false;
@@ -1226,7 +1231,8 @@
         }
 
         final Intent intent = new Intent(DiskInfo.ACTION_DISK_SCANNED);
-        intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
+        intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT
+                | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
         intent.putExtra(DiskInfo.EXTRA_DISK_ID, disk.id);
         intent.putExtra(DiskInfo.EXTRA_VOLUME_COUNT, volumeCount);
         mHandler.obtainMessage(H_INTERNAL_BROADCAST, intent).sendToTarget();
@@ -1342,7 +1348,8 @@
             intent.putExtra(VolumeInfo.EXTRA_VOLUME_ID, vol.id);
             intent.putExtra(VolumeInfo.EXTRA_VOLUME_STATE, newState);
             intent.putExtra(VolumeRecord.EXTRA_FS_UUID, vol.fsUuid);
-            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
+            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT
+                    | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
             mHandler.obtainMessage(H_INTERNAL_BROADCAST, intent).sendToTarget();
         }
 
@@ -1494,17 +1501,13 @@
                 null);
         mConnector.setDebug(true);
         mConnector.setWarnIfHeld(mLock);
-
-        Thread thread = new Thread(mConnector, VOLD_TAG);
-        thread.start();
+        mConnectorThread = new Thread(mConnector, VOLD_TAG);
 
         // Reuse parameters from first connector since they are tested and safe
         mCryptConnector = new NativeDaemonConnector(this, "cryptd",
                 MAX_CONTAINERS * 2, CRYPTD_TAG, 25, null);
         mCryptConnector.setDebug(true);
-
-        Thread crypt_thread = new Thread(mCryptConnector, CRYPTD_TAG);
-        crypt_thread.start();
+        mCryptConnectorThread = new Thread(mCryptConnector, CRYPTD_TAG);
 
         final IntentFilter userFilter = new IntentFilter();
         userFilter.addAction(Intent.ACTION_USER_ADDED);
@@ -1521,6 +1524,11 @@
         }
     }
 
+    private void start() {
+        mConnectorThread.start();
+        mCryptConnectorThread.start();
+    }
+
     private void systemReady() {
         mSystemReady = true;
         mHandler.obtainMessage(H_SYSTEM_READY).sendToTarget();
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 467fc49..42cf42f 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -351,7 +351,6 @@
 import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE;
 import static com.android.server.wm.AppTransition.TRANSIT_ACTIVITY_OPEN;
 import static com.android.server.wm.AppTransition.TRANSIT_ACTIVITY_RELAUNCH;
-import static com.android.server.wm.AppTransition.TRANSIT_DOCK_TASK_FROM_RECENTS;
 import static com.android.server.wm.AppTransition.TRANSIT_TASK_IN_PLACE;
 import static com.android.server.wm.AppTransition.TRANSIT_TASK_OPEN;
 import static com.android.server.wm.AppTransition.TRANSIT_TASK_TO_FRONT;
@@ -1468,6 +1467,9 @@
     static final int FIRST_COMPAT_MODE_MSG = 300;
     static final int FIRST_SUPERVISOR_STACK_MSG = 100;
 
+    static ServiceThread sKillThread = null;
+    static KillHandler sKillHandler = null;
+
     CompatModeDialog mCompatModeDialog;
     long mLastMemUsageReportTime = 0;
 
@@ -1488,10 +1490,33 @@
     final ServiceThread mHandlerThread;
     final MainHandler mHandler;
     final UiHandler mUiHandler;
-    final ProcessStartLogger mProcessStartLogger;
 
     PackageManagerInternal mPackageManagerInt;
 
+    final class KillHandler extends Handler {
+        static final int KILL_PROCESS_GROUP_MSG = 4000;
+
+        public KillHandler(Looper looper) {
+            super(looper, null, true);
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case KILL_PROCESS_GROUP_MSG:
+                {
+                    Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "killProcessGroup");
+                    Process.killProcessGroup(msg.arg1 /* uid */, msg.arg2 /* pid */);
+                    Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
+                }
+                break;
+
+                default:
+                    super.handleMessage(msg);
+            }
+        }
+    }
+
     final class UiHandler extends Handler {
         public UiHandler() {
             super(com.android.server.UiThread.get().getLooper(), null, true);
@@ -2460,7 +2485,13 @@
         mHandler = new MainHandler(mHandlerThread.getLooper());
         mUiHandler = new UiHandler();
 
-        mProcessStartLogger = new ProcessStartLogger();
+        /* static; one-time init here */
+        if (sKillHandler == null) {
+            sKillThread = new ServiceThread(TAG + ":kill",
+                    android.os.Process.THREAD_PRIORITY_BACKGROUND, true /* allowIo */);
+            sKillThread.start();
+            sKillHandler = new KillHandler(sKillThread.getLooper());
+        }
 
         mFgBroadcastQueue = new BroadcastQueue(this, mHandler,
                 "foreground", BROADCAST_FG_TIMEOUT, false);
@@ -3010,9 +3041,13 @@
     }
 
     static void killProcessGroup(int uid, int pid) {
-        Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "killProcessGroup");
-        Process.killProcessGroup(uid, pid);
-        Trace.traceEnd(Trace.TRACE_TAG_ACTIVITY_MANAGER);
+        if (sKillHandler != null) {
+            sKillHandler.sendMessage(
+                    sKillHandler.obtainMessage(KillHandler.KILL_PROCESS_GROUP_MSG, uid, pid));
+        } else {
+            Slog.w(TAG, "Asked to kill process group before system bringup!");
+            Process.killProcessGroup(uid, pid);
+        }
     }
 
     final void removeLruProcessLocked(ProcessRecord app) {
@@ -3594,7 +3629,12 @@
                     app.processName, hostingType,
                     hostingNameStr != null ? hostingNameStr : "");
 
-            mProcessStartLogger.logIfNeededLocked(app, startResult);
+            try {
+                AppGlobals.getPackageManager().logAppProcessStartIfNeeded(app.processName, app.uid,
+                        app.info.seinfo, app.info.sourceDir, startResult.pid);
+            } catch (RemoteException ex) {
+                // Ignore
+            }
 
             if (app.persistent) {
                 Watchdog.getInstance().processStarted(app.processName, startResult.pid);
@@ -6537,8 +6577,6 @@
             }
         }, dumpheapFilter);
 
-        mProcessStartLogger.registerListener(mContext);
-
         // Let system services know.
         mSystemServiceManager.startBootPhase(SystemService.PHASE_BOOT_COMPLETED);
 
@@ -7182,8 +7220,17 @@
         }
     }
 
+    // NOTE: this is an internal method used by the OnShellCommand implementation only and should
+    // be guarded by permission checking.
+    int getUidState(int uid) {
+        synchronized (this) {
+            UidRecord uidRec = mActiveUids.get(uid);
+            return uidRec == null ? ActivityManager.PROCESS_STATE_NONEXISTENT : uidRec.curProcState;
+        }
+    }
+
     @Override
-    public boolean inMultiWindow(IBinder token) {
+    public boolean isInMultiWindowMode(IBinder token) {
         final long origId = Binder.clearCallingIdentity();
         try {
             synchronized(this) {
@@ -7200,7 +7247,7 @@
     }
 
     @Override
-    public boolean inPictureInPicture(IBinder token) {
+    public boolean isInPictureInPictureMode(IBinder token) {
         final long origId = Binder.clearCallingIdentity();
         try {
             synchronized(this) {
@@ -7216,24 +7263,24 @@
     }
 
     @Override
-    public void enterPictureInPicture(IBinder token) {
+    public void enterPictureInPictureMode(IBinder token) {
         final long origId = Binder.clearCallingIdentity();
         try {
             synchronized(this) {
                 if (!mSupportsPictureInPicture) {
-                    throw new IllegalStateException("enterPictureInPicture: "
+                    throw new IllegalStateException("enterPictureInPictureMode: "
                             + "Device doesn't support picture-in-picture mode.");
                 }
 
                 final ActivityRecord r = ActivityRecord.forTokenLocked(token);
 
                 if (r == null) {
-                    throw new IllegalStateException("enterPictureInPicture: "
+                    throw new IllegalStateException("enterPictureInPictureMode: "
                             + "Can't find activity for token=" + token);
                 }
 
                 if (!r.supportsPictureInPicture()) {
-                    throw new IllegalArgumentException("enterPictureInPicture: "
+                    throw new IllegalArgumentException("enterPictureInPictureMode: "
                             + "Picture-In-Picture not supported for r=" + r);
                 }
 
@@ -7242,7 +7289,7 @@
                         ? mDefaultPinnedStackBounds : null;
 
                 mStackSupervisor.moveActivityToPinnedStackLocked(
-                        r, "enterPictureInPicture", bounds);
+                        r, "enterPictureInPictureMode", bounds);
             }
         } finally {
             Binder.restoreCallingIdentity(origId);
@@ -13205,6 +13252,7 @@
         }
     }
 
+    @Override
     public List<ActivityManager.ProcessErrorStateInfo> getProcessesInErrorState() {
         enforceNotIsolatedCaller("getProcessesInErrorState");
         // assume our apps are happy - lazy create the list
@@ -13281,6 +13329,7 @@
         outInfo.processState = app.curProcState;
     }
 
+    @Override
     public List<ActivityManager.RunningAppProcessInfo> getRunningAppProcesses() {
         enforceNotIsolatedCaller("getRunningAppProcesses");
 
@@ -13332,6 +13381,7 @@
         return runList;
     }
 
+    @Override
     public List<ApplicationInfo> getRunningExternalApplications() {
         enforceNotIsolatedCaller("getRunningExternalApplications");
         List<ActivityManager.RunningAppProcessInfo> runningApps = getRunningAppProcesses();
diff --git a/services/core/java/com/android/server/am/ActivityManagerShellCommand.java b/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
index 0253976..d570be9 100644
--- a/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
+++ b/services/core/java/com/android/server/am/ActivityManagerShellCommand.java
@@ -16,10 +16,12 @@
 
 package com.android.server.am;
 
+import android.app.ActivityManager;
 import android.app.IActivityManager;
 import android.os.RemoteException;
 import android.os.ShellCommand;
 import android.os.UserHandle;
+import android.util.DebugUtils;
 
 import com.android.internal.util.ArrayUtils;
 
@@ -64,6 +66,8 @@
                     return runIsUserStopped(pw);
                 case "lenient-background-check":
                     return runLenientBackgroundCheck(pw);
+                case "get-uid-state":
+                    return getUidState(pw);
                 default:
                     return handleDefaultCommands(cmd);
             }
@@ -170,6 +174,17 @@
         return 0;
     }
 
+    int getUidState(PrintWriter pw) throws RemoteException {
+        mInternal.enforceCallingPermission(android.Manifest.permission.DUMP,
+                "getUidState()");
+        int state = mInternal.getUidState(Integer.parseInt(getNextArgRequired()));
+        pw.print(state);
+        pw.print(" (");
+        pw.printf(DebugUtils.valueToString(ActivityManager.class, "PROCESS_STATE_", state));
+        pw.println(")");
+        return 0;
+    }
+
     @Override
     public void onHelp() {
         PrintWriter pw = getOutPrintWriter();
@@ -212,7 +227,7 @@
             pw.println("  kill [--user <USER_ID> | all | current] <PACKAGE>");
             pw.println("    Kill all processes associated with the given application.");
             pw.println("  kill-all");
-            pw.println("    Kill all processes that are safe to kill (cached, etc)");
+            pw.println("    Kill all processes that are safe to kill (cached, etc).");
             pw.println("  write");
             pw.println("    Write all pending state to storage.");
             pw.println("  track-associations");
@@ -220,9 +235,11 @@
             pw.println("  untrack-associations");
             pw.println("    Disable and clear association tracking.");
             pw.println("  is-user-stopped <USER_ID>");
-            pw.println("    returns whether <USER_ID> has been stopped or not");
+            pw.println("    Returns whether <USER_ID> has been stopped or not.");
             pw.println("  lenient-background-check [<true|false>]");
-            pw.println("    optionally controls lenient background check mode, returns current mode.");
+            pw.println("    Optionally controls lenient background check mode, returns current mode.");
+            pw.println("  get-uid-state <UID>");
+            pw.println("    Gets the process state of an app given its <UID>.");
         }
     }
 }
diff --git a/services/core/java/com/android/server/am/ActivityRecord.java b/services/core/java/com/android/server/am/ActivityRecord.java
index 5219827..48f87b6 100755
--- a/services/core/java/com/android/server/am/ActivityRecord.java
+++ b/services/core/java/com/android/server/am/ActivityRecord.java
@@ -23,7 +23,6 @@
 import static android.content.pm.ActivityInfo.FLAG_ALWAYS_FOCUSABLE;
 import static android.content.pm.ActivityInfo.RESIZE_MODE_RESIZEABLE_AND_PIPABLE;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CONFIGURATION;
-import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SAVED_STATE;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH;
 import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_THUMBNAILS;
 import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STATES;
@@ -452,24 +451,24 @@
         }
     }
 
-    void scheduleMultiWindowChanged() {
+    void scheduleMultiWindowModeChanged() {
         if (task == null || task.stack == null || app == null || app.thread == null) {
             return;
         }
         try {
             // An activity is considered to be in multi-window mode if its task isn't fullscreen.
-            app.thread.scheduleMultiWindowChanged(appToken, !task.mFullscreen);
+            app.thread.scheduleMultiWindowModeChanged(appToken, !task.mFullscreen);
         } catch (Exception e) {
             // If process died, I don't care.
         }
     }
 
-    void schedulePictureInPictureChanged() {
+    void schedulePictureInPictureModeChanged() {
         if (task == null || task.stack == null || app == null || app.thread == null) {
             return;
         }
         try {
-            app.thread.schedulePictureInPictureChanged(
+            app.thread.schedulePictureInPictureModeChanged(
                     appToken, task.stack.mStackId == PINNED_STACK_ID);
         } catch (Exception e) {
             // If process died, no one cares.
diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index a9ef1d6..b297938 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -4986,7 +4986,7 @@
 
     private void postAddTask(TaskRecord task, ActivityStack prevStack) {
         if (prevStack != null) {
-            mStackSupervisor.scheduleReportPictureInPictureChangedIfNeeded(task, prevStack);
+            mStackSupervisor.scheduleReportPictureInPictureModeChangedIfNeeded(task, prevStack);
         } else if (task.voiceSession != null) {
             try {
                 task.voiceSession.taskStarted(task.intent, task.taskId);
@@ -5045,7 +5045,7 @@
         r.setTask(task, null);
         task.addActivityToTop(r);
         setAppTask(r, task);
-        mStackSupervisor.scheduleReportPictureInPictureChangedIfNeeded(task, prevStack);
+        mStackSupervisor.scheduleReportPictureInPictureModeChangedIfNeeded(task, prevStack);
         moveToFrontAndResumeStateIfNeeded(r, wasFocused, wasResumed, "moveActivityToStack");
         if (wasResumed) {
             prevStack.mResumedActivity = null;
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 950320e..0d70e99 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -102,7 +102,6 @@
 import java.util.Objects;
 import java.util.Set;
 
-import static android.Manifest.permission.MANAGE_ACTIVITY_STACKS;
 import static android.Manifest.permission.START_ANY_ACTIVITY;
 import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
 import static android.app.ActivityManager.LOCK_TASK_MODE_LOCKED;
@@ -3524,7 +3523,7 @@
         mActivityMetricsLogger.logWindowState();
     }
 
-    void scheduleReportMultiWindowChanged(TaskRecord task) {
+    void scheduleReportMultiWindowModeChanged(TaskRecord task) {
         for (int i = task.mActivities.size() - 1; i >= 0; i--) {
             final ActivityRecord r = task.mActivities.get(i);
             if (r.app != null && r.app.thread != null) {
@@ -3537,7 +3536,7 @@
         }
     }
 
-    void scheduleReportPictureInPictureChangedIfNeeded(TaskRecord task, ActivityStack prevStack) {
+    void scheduleReportPictureInPictureModeChangedIfNeeded(TaskRecord task, ActivityStack prevStack) {
         final ActivityStack stack = task.stack;
         if (prevStack == null || prevStack == stack
                 || (prevStack.mStackId != PINNED_STACK_ID && stack.mStackId != PINNED_STACK_ID)) {
@@ -3575,7 +3574,7 @@
                     synchronized (mService) {
                         for (int i = mMultiWindowModeChangedActivities.size() - 1; i >= 0; i--) {
                             final ActivityRecord r = mMultiWindowModeChangedActivities.remove(i);
-                            r.scheduleMultiWindowChanged();
+                            r.scheduleMultiWindowModeChanged();
                         }
                     }
                 } break;
@@ -3583,7 +3582,7 @@
                     synchronized (mService) {
                         for (int i = mPipModeChangedActivities.size() - 1; i >= 0; i--) {
                             final ActivityRecord r = mPipModeChangedActivities.remove(i);
-                            r.schedulePictureInPictureChanged();
+                            r.schedulePictureInPictureModeChanged();
                         }
                     }
                 } break;
diff --git a/services/core/java/com/android/server/am/ProcessRecord.java b/services/core/java/com/android/server/am/ProcessRecord.java
index 0993ce6..93d4060 100644
--- a/services/core/java/com/android/server/am/ProcessRecord.java
+++ b/services/core/java/com/android/server/am/ProcessRecord.java
@@ -560,7 +560,7 @@
             }
             EventLog.writeEvent(EventLogTags.AM_KILL, userId, pid, processName, setAdj, reason);
             Process.killProcessQuiet(pid);
-            Process.killProcessGroup(uid, pid);
+            ActivityManagerService.killProcessGroup(uid, pid);
             if (!persistent) {
                 killed = true;
                 killedByAm = true;
diff --git a/services/core/java/com/android/server/am/ProcessStartLogger.java b/services/core/java/com/android/server/am/ProcessStartLogger.java
deleted file mode 100644
index 39fbeb5..0000000
--- a/services/core/java/com/android/server/am/ProcessStartLogger.java
+++ /dev/null
@@ -1,151 +0,0 @@
-package com.android.server.am;
-
-import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
-import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
-
-import android.app.AppGlobals;
-import android.app.admin.SecurityLog;
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.content.IntentFilter;
-import android.content.pm.ApplicationInfo;
-import android.os.Handler;
-import android.os.HandlerThread;
-import android.os.Process;
-import android.os.RemoteException;
-import android.os.Process.ProcessStartResult;
-import android.util.Slog;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
-import java.util.HashMap;
-
-/**
- * A class that logs process start information (including APK hash) to the security log.
- */
-class ProcessStartLogger {
-    private static final String CLASS_NAME = "ProcessStartLogger";
-    private static final String TAG = TAG_WITH_CLASS_NAME ? CLASS_NAME : TAG_AM;
-
-    final HandlerThread mHandlerProcessLoggingThread;
-    Handler mHandlerProcessLogging;
-    // Should only access in mHandlerProcessLoggingThread
-    final HashMap<String, String> mProcessLoggingApkHashes;
-
-    ProcessStartLogger() {
-        mHandlerProcessLoggingThread = new HandlerThread(CLASS_NAME,
-                Process.THREAD_PRIORITY_BACKGROUND);
-        mProcessLoggingApkHashes = new HashMap();
-    }
-
-    void logIfNeededLocked(ProcessRecord app, ProcessStartResult startResult) {
-        if (!SecurityLog.isLoggingEnabled()) {
-            return;
-        }
-        if (!mHandlerProcessLoggingThread.isAlive()) {
-            mHandlerProcessLoggingThread.start();
-            mHandlerProcessLogging = new Handler(mHandlerProcessLoggingThread.getLooper());
-        }
-        mHandlerProcessLogging.post(new ProcessLoggingRunnable(app, startResult,
-                System.currentTimeMillis()));
-    }
-
-    void registerListener(Context context) {
-        IntentFilter packageChangedFilter = new IntentFilter();
-        packageChangedFilter.addAction(Intent.ACTION_PACKAGE_ADDED);
-        packageChangedFilter.addAction(Intent.ACTION_PACKAGE_CHANGED);
-        context.registerReceiver(new BroadcastReceiver() {
-            @Override
-            public void onReceive(Context context, Intent intent) {
-                if (intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)
-                        || Intent.ACTION_PACKAGE_ADDED.equals(intent.getAction())) {
-                    int userHandle = intent.getIntExtra(Intent.EXTRA_USER_HANDLE,
-                            getSendingUserId());
-                    String packageName = intent.getData().getSchemeSpecificPart();
-                    try {
-                        ApplicationInfo info = AppGlobals.getPackageManager().getApplicationInfo(
-                                packageName, 0, userHandle);
-                        invaildateCache(info.sourceDir);
-                    } catch (RemoteException e) {
-                    }
-                }
-            }
-        }, packageChangedFilter);
-    }
-
-    private void invaildateCache(final String apkPath) {
-        if (mHandlerProcessLogging != null) {
-            mHandlerProcessLogging.post(new Runnable() {
-                @Override
-                public void run() {
-                    mProcessLoggingApkHashes.remove(apkPath);
-                }
-            });
-        }
-    }
-
-    private class ProcessLoggingRunnable implements Runnable {
-
-        private final ProcessRecord app;
-        private final Process.ProcessStartResult startResult;
-        private final long startTimestamp;
-
-        public ProcessLoggingRunnable(ProcessRecord app, Process.ProcessStartResult startResult,
-                long startTimestamp){
-            this.app = app;
-            this.startResult = startResult;
-            this.startTimestamp = startTimestamp;
-        }
-
-        @Override
-        public void run() {
-            String apkHash = computeStringHashOfApk(app);
-            SecurityLog.writeEvent(SecurityLog.TAG_APP_PROCESS_START,
-                    app.processName,
-                    startTimestamp,
-                    app.uid,
-                    startResult.pid,
-                    app.info.seinfo,
-                    apkHash);
-        }
-
-        private String computeStringHashOfApk(ProcessRecord app){
-            final String apkFile = app.info.sourceDir;
-            if(apkFile == null) {
-                return "No APK";
-            }
-            String apkHash = mProcessLoggingApkHashes.get(apkFile);
-            if (apkHash == null) {
-                try {
-                    byte[] hash = computeHashOfApkFile(apkFile);
-                    StringBuilder sb = new StringBuilder();
-                    for (int i = 0; i < hash.length; i++) {
-                        sb.append(String.format("%02x", hash[i]));
-                    }
-                    apkHash = sb.toString();
-                    mProcessLoggingApkHashes.put(apkFile, apkHash);
-                } catch (IOException | NoSuchAlgorithmException e) {
-                    Slog.w(TAG, "computeStringHashOfApk() failed", e);
-                }
-            }
-            return apkHash != null ? apkHash : "Failed to count APK hash";
-        }
-
-        private byte[] computeHashOfApkFile(String packageArchiveLocation)
-                throws IOException, NoSuchAlgorithmException {
-            MessageDigest md = MessageDigest.getInstance("SHA-256");
-            FileInputStream input = new FileInputStream(new File(packageArchiveLocation));
-            byte[] buffer = new byte[65536];
-            int size;
-            while((size = input.read(buffer)) > 0) {
-                md.update(buffer, 0, size);
-            }
-            input.close();
-            return md.digest();
-        }
-    }
-}
\ No newline at end of file
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index 0f1ebeb..b157070 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -1449,7 +1449,7 @@
         }
 
         if (mFullscreen != oldFullscreen) {
-            mService.mStackSupervisor.scheduleReportMultiWindowChanged(this);
+            mService.mStackSupervisor.scheduleReportMultiWindowModeChanged(this);
         }
 
         return !mOverrideConfig.equals(oldConfig) ? mOverrideConfig : null;
diff --git a/services/core/java/com/android/server/am/UserController.java b/services/core/java/com/android/server/am/UserController.java
index c59591e9..aef454e 100644
--- a/services/core/java/com/android/server/am/UserController.java
+++ b/services/core/java/com/android/server/am/UserController.java
@@ -434,35 +434,17 @@
                 stoppingIntent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
                 stoppingIntent.putExtra(Intent.EXTRA_USER_HANDLE, userId);
                 stoppingIntent.putExtra(Intent.EXTRA_SHUTDOWN_USERSPACE_ONLY, true);
-                final Intent shutdownIntent = new Intent(Intent.ACTION_SHUTDOWN);
-                // This is the result receiver for the final shutdown broadcast.
-                final IIntentReceiver shutdownReceiver = new IIntentReceiver.Stub() {
-                    @Override
-                    public void performReceive(Intent intent, int resultCode, String data,
-                            Bundle extras, boolean ordered, boolean sticky, int sendingUser) {
-                        finishUserStop(uss);
-                    }
-                };
                 // This is the result receiver for the initial stopping broadcast.
                 final IIntentReceiver stoppingReceiver = new IIntentReceiver.Stub() {
                     @Override
                     public void performReceive(Intent intent, int resultCode, String data,
                             Bundle extras, boolean ordered, boolean sticky, int sendingUser) {
-                        // On to the next.
-                        synchronized (mService) {
-                            if (uss.state != UserState.STATE_STOPPING) {
-                                // Whoops, we are being started back up.  Abort, abort!
-                                return;
+                        mHandler.post(new Runnable() {
+                            @Override
+                            public void run() {
+                                finishUserStopping(userId, uss);
                             }
-                            uss.setState(UserState.STATE_SHUTDOWN);
-                        }
-                        mService.mBatteryStatsService.noteEvent(
-                                BatteryStats.HistoryItem.EVENT_USER_RUNNING_FINISH,
-                                Integer.toString(userId), userId);
-                        mService.mSystemServiceManager.stopUser(userId);
-                        mService.broadcastIntentLocked(null, null, shutdownIntent,
-                                null, shutdownReceiver, 0, null, null, null, AppOpsManager.OP_NONE,
-                                null, true, false, MY_PID, SYSTEM_UID, userId);
+                        });
                     }
                 };
                 // Kick things off.
@@ -476,7 +458,45 @@
         }
     }
 
-    void finishUserStop(UserState uss) {
+    void finishUserStopping(final int userId, final UserState uss) {
+        // On to the next.
+        final Intent shutdownIntent = new Intent(Intent.ACTION_SHUTDOWN);
+        // This is the result receiver for the final shutdown broadcast.
+        final IIntentReceiver shutdownReceiver = new IIntentReceiver.Stub() {
+            @Override
+            public void performReceive(Intent intent, int resultCode, String data,
+                    Bundle extras, boolean ordered, boolean sticky, int sendingUser) {
+                mHandler.post(new Runnable() {
+                    @Override
+                    public void run() {
+                        finishUserStopped(uss);
+                    }
+                });
+            }
+        };
+
+        synchronized (mService) {
+            if (uss.state != UserState.STATE_STOPPING) {
+                // Whoops, we are being started back up.  Abort, abort!
+                return;
+            }
+            uss.setState(UserState.STATE_SHUTDOWN);
+        }
+
+        mService.mBatteryStatsService.noteEvent(
+                BatteryStats.HistoryItem.EVENT_USER_RUNNING_FINISH,
+                Integer.toString(userId), userId);
+        mService.mSystemServiceManager.stopUser(userId);
+
+        synchronized (mService) {
+            mService.broadcastIntentLocked(null, null, shutdownIntent,
+                    null, shutdownReceiver, 0, null, null, null,
+                    AppOpsManager.OP_NONE,
+                    null, true, false, MY_PID, SYSTEM_UID, userId);
+        }
+    }
+
+    void finishUserStopped(UserState uss) {
         final int userId = uss.mHandle.getIdentifier();
         boolean stopped;
         ArrayList<IStopUserCallback> callbacks;
@@ -765,10 +785,17 @@
                         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
                         mService.broadcastIntentLocked(null, null, intent, null,
                                 new IIntentReceiver.Stub() {
+                                    @Override
                                     public void performReceive(Intent intent, int resultCode,
                                             String data, Bundle extras, boolean ordered,
                                             boolean sticky, int sendingUser) {
-                                        onUserInitialized(uss, foreground, oldUserId, userId);
+                                        mHandler.post(new Runnable() {
+                                            @Override
+                                            public void run() {
+                                                onUserInitialized(uss, foreground,
+                                                        oldUserId, userId);
+                                            }
+                                        });
                                     }
                                 }, 0, null, null, null, AppOpsManager.OP_NONE,
                                 null, true, false, MY_PID, SYSTEM_UID, userId);
diff --git a/services/core/java/com/android/server/connectivity/Tethering.java b/services/core/java/com/android/server/connectivity/Tethering.java
index da9c48a..d10df02 100644
--- a/services/core/java/com/android/server/connectivity/Tethering.java
+++ b/services/core/java/com/android/server/connectivity/Tethering.java
@@ -32,6 +32,7 @@
 import android.content.res.Resources;
 import android.hardware.usb.UsbManager;
 import android.net.ConnectivityManager;
+import android.net.ConnectivityManager.NetworkCallback;
 import android.net.INetworkStatsService;
 import android.net.InterfaceConfiguration;
 import android.net.LinkAddress;
@@ -40,6 +41,7 @@
 import android.net.NetworkCapabilities;
 import android.net.NetworkInfo;
 import android.net.NetworkRequest;
+import android.net.NetworkState;
 import android.net.NetworkUtils;
 import android.net.RouteInfo;
 import android.net.wifi.WifiManager;
@@ -88,7 +90,7 @@
  */
 public class Tethering extends BaseNetworkObserver {
 
-    private Context mContext;
+    private final Context mContext;
     private final static String TAG = "Tethering";
     private final static boolean DBG = false;
     private final static boolean VDBG = false;
@@ -100,7 +102,7 @@
     private Collection<Integer> mUpstreamIfaceTypes;
 
     // used to synchronize public access to members
-    private Object mPublicSync;
+    private final Object mPublicSync;
 
     private static final Integer MOBILE_TYPE = new Integer(ConnectivityManager.TYPE_MOBILE);
     private static final Integer HIPRI_TYPE = new Integer(ConnectivityManager.TYPE_MOBILE_HIPRI);
@@ -112,7 +114,7 @@
 
     private final INetworkManagementService mNMService;
     private final INetworkStatsService mStatsService;
-    private Looper mLooper;
+    private final Looper mLooper;
 
     private HashMap<String, TetherInterfaceSM> mIfaces; // all tethered/tetherable ifaces
 
@@ -143,7 +145,9 @@
     private static final String DNS_DEFAULT_SERVER1 = "8.8.8.8";
     private static final String DNS_DEFAULT_SERVER2 = "8.8.4.4";
 
-    private StateMachine mTetherMasterSM;
+    private final StateMachine mTetherMasterSM;
+    private final UpstreamNetworkMonitor mUpstreamNetworkMonitor;
+    private String mCurrentUpstreamIface;
 
     private Notification.Builder mTetheredNotificationBuilder;
     private int mLastNotificationId;
@@ -167,6 +171,8 @@
         mTetherMasterSM = new TetherMasterSM("TetherMaster", mLooper);
         mTetherMasterSM.start();
 
+        mUpstreamNetworkMonitor = new UpstreamNetworkMonitor();
+
         mStateReceiver = new StateReceiver();
         IntentFilter filter = new IntentFilter();
         filter.addAction(UsbManager.ACTION_USB_STATE);
@@ -505,7 +511,7 @@
         };
 
         // The following is necessary to avoid unmarshalling issues when sending the receiver
-        // across proccesses.
+        // across processes.
         Parcel parcel = Parcel.obtain();
         rr.writeToParcel(parcel,0);
         parcel.setDataPosition(0);
@@ -559,6 +565,7 @@
             }
         }
     }
+
     public int tether(String iface) {
         if (DBG) Log.d(TAG, "Tethering " + iface);
         TetherInterfaceSM sm = null;
@@ -1371,15 +1378,115 @@
 
     }
 
+    /**
+     * A NetworkCallback class that relays information of interest to the
+     * tethering master state machine thread for subsequent processing.
+     */
+    class UpstreamNetworkCallback extends NetworkCallback {
+        @Override
+        public void onLinkPropertiesChanged(Network network, LinkProperties newLp) {
+            mTetherMasterSM.sendMessage(
+                    TetherMasterSM.EVENT_UPSTREAM_LINKPROPERTIES_CHANGED,
+                    new NetworkState(null, newLp, null, network, null, null));
+        }
+
+        @Override
+        public void onLost(Network network) {
+            mTetherMasterSM.sendMessage(TetherMasterSM.EVENT_UPSTREAM_LOST, network);
+        }
+    }
+
+    /**
+     * A class to centralize all the network and link properties information
+     * pertaining to the current and any potential upstream network.
+     *
+     * Calling #start() registers two callbacks: one to track the system default
+     * network and a second to specifically observe TYPE_MOBILE_DUN networks.
+     *
+     * The methods and data members of this class are only to be accessed and
+     * modified from the tethering master state machine thread. Any other
+     * access semantics would necessitate the addition of locking.
+     *
+     * TODO: Investigate whether more "upstream-specific" logic/functionality
+     * could/should be moved here.
+     */
+    class UpstreamNetworkMonitor {
+        final HashMap<Network, NetworkState> mNetworkMap = new HashMap();
+        NetworkCallback mDefaultNetworkCallback;
+        NetworkCallback mDunTetheringCallback;
+
+        void start() {
+            stop();
+
+            mDefaultNetworkCallback = new UpstreamNetworkCallback();
+            getConnectivityManager().registerDefaultNetworkCallback(mDefaultNetworkCallback);
+
+            final NetworkRequest dunTetheringRequest = new NetworkRequest.Builder()
+                    .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
+                    .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
+                    .addCapability(NetworkCapabilities.NET_CAPABILITY_DUN)
+                    .build();
+            mDunTetheringCallback = new UpstreamNetworkCallback();
+            getConnectivityManager().registerNetworkCallback(
+                    dunTetheringRequest, mDunTetheringCallback);
+        }
+
+        void stop() {
+            if (mDefaultNetworkCallback != null) {
+                getConnectivityManager().unregisterNetworkCallback(mDefaultNetworkCallback);
+                mDefaultNetworkCallback = null;
+            }
+
+            if (mDunTetheringCallback != null) {
+                getConnectivityManager().unregisterNetworkCallback(mDunTetheringCallback);
+                mDunTetheringCallback = null;
+            }
+
+            mNetworkMap.clear();
+        }
+
+        // Returns true if these updated LinkProperties pertain to the current
+        // upstream network interface, false otherwise (or if there is not
+        // currently any upstream tethering interface).
+        boolean processLinkPropertiesChanged(NetworkState networkState) {
+            if (networkState == null ||
+                    networkState.network == null ||
+                    networkState.linkProperties == null) {
+                return false;
+            }
+
+            mNetworkMap.put(networkState.network, networkState);
+
+            if (mCurrentUpstreamIface != null) {
+                for (String ifname : networkState.linkProperties.getAllInterfaceNames()) {
+                    if (mCurrentUpstreamIface.equals(ifname)) {
+                        return true;
+                    }
+                }
+            }
+            return false;
+        }
+
+        void processNetworkLost(Network network) {
+            if (network != null) {
+                mNetworkMap.remove(network);
+            }
+        }
+    }
+
     class TetherMasterSM extends StateMachine {
         // an interface SM has requested Tethering
-        static final int CMD_TETHER_MODE_REQUESTED   = 1;
+        static final int CMD_TETHER_MODE_REQUESTED              = 1;
         // an interface SM has unrequested Tethering
-        static final int CMD_TETHER_MODE_UNREQUESTED = 2;
+        static final int CMD_TETHER_MODE_UNREQUESTED            = 2;
         // upstream connection change - do the right thing
-        static final int CMD_UPSTREAM_CHANGED        = 3;
+        static final int CMD_UPSTREAM_CHANGED                   = 3;
         // we don't have a valid upstream conn, check again after a delay
-        static final int CMD_RETRY_UPSTREAM          = 4;
+        static final int CMD_RETRY_UPSTREAM                     = 4;
+        // Events from NetworkCallbacks that we process on the master state
+        // machine thread on behalf of the UpstreamNetworkMonitor.
+        static final int EVENT_UPSTREAM_LINKPROPERTIES_CHANGED  = 5;
+        static final int EVENT_UPSTREAM_LOST                    = 6;
 
         // This indicates what a timeout event relates to.  A state that
         // sends itself a delayed timeout event and handles incoming timeout events
@@ -1399,9 +1506,7 @@
         private ArrayList<TetherInterfaceSM> mNotifyList;
 
         private int mMobileApnReserved = ConnectivityManager.TYPE_NONE;
-        private ConnectivityManager.NetworkCallback mMobileUpstreamCallback;
-
-        private String mUpstreamIfaceName = null;
+        private NetworkCallback mMobileUpstreamCallback;
 
         private static final int UPSTREAM_SETTLE_TIME_MS     = 10000;
 
@@ -1430,8 +1535,6 @@
         }
 
         class TetherMasterUtilState extends State {
-            protected final static boolean WAIT_FOR_NETWORK_TO_SETTLE     = false;
-
             @Override
             public boolean processMessage(Message m) {
                 return false;
@@ -1461,27 +1564,27 @@
                         return false;
                 }
 
-                NetworkRequest.Builder builder = new NetworkRequest.Builder()
+                final NetworkRequest.Builder builder = new NetworkRequest.Builder()
                         .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);
                 if (apnType == ConnectivityManager.TYPE_MOBILE_DUN) {
-                    builder.addCapability(NetworkCapabilities.NET_CAPABILITY_DUN)
-                           .removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
+                    builder.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED)
+                           .addCapability(NetworkCapabilities.NET_CAPABILITY_DUN);
                 } else {
                     builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);
                 }
-                NetworkRequest mobileUpstreamRequest = builder.build();
-                // Other mechanisms notice network and interface changes and act upon them.
-                // TODO, imminently: replace with a proper NetworkCallback-based scheme.
-                //
+                final NetworkRequest mobileUpstreamRequest = builder.build();
+
+                // The UpstreamNetworkMonitor's callback will be notified.
+                // Therefore, to avoid duplicate notifications, we only register a no-op.
+                mMobileUpstreamCallback = new NetworkCallback();
+
                 // TODO: Change the timeout from 0 (no onUnavailable callback) to use some
                 // moderate callback time (once timeout callbacks are implemented). This might
                 // be useful for updating some UI. Additionally, we should definitely log a
-                // message to aid in any subsequent debugging.
-                mMobileUpstreamCallback = new ConnectivityManager.NetworkCallback();
+                // message to aid in any subsequent debugging
                 if (DBG) Log.d(TAG, "requesting mobile upstream network: " + mobileUpstreamRequest);
                 getConnectivityManager().requestNetwork(
                         mobileUpstreamRequest, mMobileUpstreamCallback, 0, apnType);
-
                 return true;
             }
 
@@ -1513,6 +1616,7 @@
                 }
                 return true;
             }
+
             protected boolean turnOffMasterTetherSettings() {
                 try {
                     mNMService.stopTethering();
@@ -1606,34 +1710,41 @@
                     }
 
                     if (iface != null) {
-                        String[] dnsServers = mDefaultDnsServers;
-                        Collection<InetAddress> dnses = linkProperties.getDnsServers();
-                        if (dnses != null && !dnses.isEmpty()) {
-                            // TODO: remove this invocation of NetworkUtils.makeStrings().
-                            dnsServers = NetworkUtils.makeStrings(dnses);
+                        Network network = getConnectivityManager().getNetworkForType(upType);
+                        if (network == null) {
+                            Log.e(TAG, "No Network for upstream type " + upType + "!");
                         }
-                        try {
-                            Network network = getConnectivityManager().getNetworkForType(upType);
-                            if (network == null) {
-                                Log.e(TAG, "No Network for upstream type " + upType + "!");
-                            }
-                            if (VDBG) {
-                                Log.d(TAG, "Setting DNS forwarders: Network=" + network +
-                                       ", dnsServers=" + Arrays.toString(dnsServers));
-                            }
-                            mNMService.setDnsForwarders(network, dnsServers);
-                        } catch (Exception e) {
-                            Log.e(TAG, "Setting DNS forwarders failed!");
-                            transitionTo(mSetDnsForwardersErrorState);
-                        }
+                        setDnsForwarders(network, linkProperties);
                     }
                 }
                 notifyTetheredOfNewUpstreamIface(iface);
             }
 
+            protected void setDnsForwarders(final Network network, final LinkProperties lp) {
+                String[] dnsServers = mDefaultDnsServers;
+                final Collection<InetAddress> dnses = lp.getDnsServers();
+                // TODO: Properly support the absence of DNS servers.
+                if (dnses != null && !dnses.isEmpty()) {
+                    // TODO: remove this invocation of NetworkUtils.makeStrings().
+                    dnsServers = NetworkUtils.makeStrings(dnses);
+                }
+                if (VDBG) {
+                    Log.d(TAG, "Setting DNS forwarders: Network=" + network +
+                           ", dnsServers=" + Arrays.toString(dnsServers));
+                }
+                try {
+                    mNMService.setDnsForwarders(network, dnsServers);
+                } catch (Exception e) {
+                    // TODO: Investigate how this can fail and what exactly
+                    // happens if/when such failures occur.
+                    Log.e(TAG, "Setting DNS forwarders failed!");
+                    transitionTo(mSetDnsForwardersErrorState);
+                }
+            }
+
             protected void notifyTetheredOfNewUpstreamIface(String ifaceName) {
                 if (DBG) Log.d(TAG, "notifying tethered with iface =" + ifaceName);
-                mUpstreamIfaceName = ifaceName;
+                mCurrentUpstreamIface = ifaceName;
                 for (TetherInterfaceSM sm : mNotifyList) {
                     sm.sendMessage(TetherInterfaceSM.CMD_TETHER_CONNECTION_CHANGED,
                             ifaceName);
@@ -1772,20 +1883,23 @@
         }
 
         class TetherModeAliveState extends TetherMasterUtilState {
-            boolean mTryCell = !WAIT_FOR_NETWORK_TO_SETTLE;
+            boolean mTryCell = true;
             @Override
             public void enter() {
+                // TODO: examine if we should check the return value.
                 turnOnMasterTetherSettings(); // may transition us out
                 startListeningForSimChanges();
+                mUpstreamNetworkMonitor.start();
 
-                mTryCell = !WAIT_FOR_NETWORK_TO_SETTLE; // better try something first pass
-                                                        // or crazy tests cases will fail
+                mTryCell = true;  // better try something first pass or crazy tests cases will fail
                 chooseUpstreamType(mTryCell);
                 mTryCell = !mTryCell;
             }
             @Override
             public void exit() {
+                // TODO: examine if we should check the return value.
                 turnOffUpstreamMobileConnection();
+                mUpstreamNetworkMonitor.stop();
                 stopListeningForSimChanges();
                 notifyTetheredOfNewUpstreamIface(null);
             }
@@ -1799,7 +1913,7 @@
                         if (VDBG) Log.d(TAG, "Tether Mode requested by " + who);
                         mNotifyList.add(who);
                         who.sendMessage(TetherInterfaceSM.CMD_TETHER_CONNECTION_CHANGED,
-                                mUpstreamIfaceName);
+                                mCurrentUpstreamIface);
                         break;
                     case CMD_TETHER_MODE_UNREQUESTED:
                         who = (TetherInterfaceSM)message.obj;
@@ -1823,7 +1937,7 @@
                         break;
                     case CMD_UPSTREAM_CHANGED:
                         // need to try DUN immediately if Wifi goes down
-                        mTryCell = !WAIT_FOR_NETWORK_TO_SETTLE;
+                        mTryCell = true;
                         chooseUpstreamType(mTryCell);
                         mTryCell = !mTryCell;
                         break;
@@ -1831,6 +1945,24 @@
                         chooseUpstreamType(mTryCell);
                         mTryCell = !mTryCell;
                         break;
+                    case EVENT_UPSTREAM_LINKPROPERTIES_CHANGED:
+                        NetworkState state = (NetworkState) message.obj;
+                        if (mUpstreamNetworkMonitor.processLinkPropertiesChanged(state)) {
+                            setDnsForwarders(state.network, state.linkProperties);
+                        } else if (mCurrentUpstreamIface == null) {
+                            // If we have no upstream interface, try to run through upstream
+                            // selection again.  If, for example, IPv4 connectivity has shown up
+                            // after IPv6 (e.g., 464xlat became available) we want the chance to
+                            // notice and act accordingly.
+                            chooseUpstreamType(false);
+                        }
+                        break;
+                    case EVENT_UPSTREAM_LOST:
+                        // TODO: Re-evaluate possible upstreams. Currently upstream reevaluation
+                        // is triggered via received CONNECTIVITY_ACTION broadcasts that result
+                        // in being passed a TetherMasterSM.CMD_UPSTREAM_CHANGED.
+                        mUpstreamNetworkMonitor.processNetworkLost((Network) message.obj);
+                        break;
                     default:
                         retValue = false;
                         break;
diff --git a/services/core/java/com/android/server/content/ContentService.java b/services/core/java/com/android/server/content/ContentService.java
index 28170f2..7f7ea9d 100644
--- a/services/core/java/com/android/server/content/ContentService.java
+++ b/services/core/java/com/android/server/content/ContentService.java
@@ -26,9 +26,9 @@
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.IContentService;
+import android.content.ISyncStatusObserver;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.ISyncStatusObserver;
 import android.content.PeriodicSync;
 import android.content.SyncAdapterType;
 import android.content.SyncInfo;
@@ -58,18 +58,15 @@
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.util.IndentingPrintWriter;
-import com.android.internal.util.Preconditions;
 import com.android.server.LocalServices;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.security.InvalidParameterException;
 import java.util.ArrayList;
-import java.util.Arrays;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
-import java.util.Objects;
 
 /**
  * {@hide}
@@ -1030,14 +1027,16 @@
 
         if (uri != null) {
             for (int i = 0; i < packageCache.size();) {
-                final Uri key = packageCache.keyAt(i).second;
-                if (Objects.equals(key, uri)) {
+                final Pair<String, Uri> key = packageCache.keyAt(i);
+                if (key.second != null && key.second.toString().startsWith(uri.toString())) {
+                    Slog.d(TAG, "Invalidating cache for key " + key);
                     packageCache.removeAt(i);
                 } else {
                     i++;
                 }
             }
         } else {
+            Slog.d(TAG, "Invalidating cache for package " + providerPackageName);
             packageCache.clear();
         }
     }
diff --git a/services/core/java/com/android/server/input/InputManagerService.java b/services/core/java/com/android/server/input/InputManagerService.java
index 3c04b78..e73beaa 100644
--- a/services/core/java/com/android/server/input/InputManagerService.java
+++ b/services/core/java/com/android/server/input/InputManagerService.java
@@ -948,7 +948,7 @@
     // Must be called on handler.
     private void showMissingKeyboardLayoutNotification(InputDevice device) {
         if (!mKeyboardLayoutNotificationShown) {
-            final Intent intent = new Intent(Settings.ACTION_INPUT_METHOD_SETTINGS);
+            final Intent intent = new Intent(Settings.ACTION_HARD_KEYBOARD_SETTINGS);
             if (device != null) {
                 intent.putExtra(Settings.EXTRA_INPUT_DEVICE_IDENTIFIER, device.getIdentifier());
             }
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index c75e287..2595864 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -49,7 +49,9 @@
 import static android.net.NetworkPolicyManager.POLICY_NONE;
 import static android.net.NetworkPolicyManager.POLICY_REJECT_METERED_BACKGROUND;
 import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL;
+import static android.net.NetworkPolicyManager.RULE_ALLOW_METERED;
 import static android.net.NetworkPolicyManager.RULE_REJECT_METERED;
+import static android.net.NetworkPolicyManager.RULE_TEMPORARY_ALLOW_METERED;
 import static android.net.NetworkPolicyManager.RULE_UNKNOWN;
 import static android.net.NetworkPolicyManager.computeLastCycleBoundary;
 import static android.net.NetworkTemplate.MATCH_MOBILE_3G_LOWER;
@@ -1729,7 +1731,7 @@
 
         if (wlUids.length > 0) {
             for (int uid : wlUids) {
-                removeRestrictBackgroundWhitelistedUidLocked(uid, false);
+                removeRestrictBackgroundWhitelistedUidLocked(uid, false, false);
             }
             writePolicy = true;
         }
@@ -1896,10 +1898,12 @@
         try {
             maybeRefreshTrustedTime();
             synchronized (mRulesLock) {
-                mRestrictBackground = restrictBackground;
-                updateRulesForRestrictBackgroundLocked();
-                updateNotificationsLocked();
-                writePolicyLocked();
+                if (restrictBackground == mRestrictBackground) {
+                    // Ideally, UI should never allow this scenario...
+                    Slog.w(TAG, "setRestrictBackground: already " + restrictBackground);
+                    return;
+                }
+                setRestrictBackgroundLocked(restrictBackground);
             }
 
         } finally {
@@ -1910,17 +1914,42 @@
                 .sendToTarget();
     }
 
+    private void setRestrictBackgroundLocked(boolean restrictBackground) {
+        final boolean oldRestrictBackground = mRestrictBackground;
+        mRestrictBackground = restrictBackground;
+        // Must whitelist foreground apps before turning data saver mode on.
+        // TODO: there is no need to iterate through all apps here, just those in the foreground,
+        // so it could call AM to get the UIDs of such apps, and iterate through them instead.
+        updateRulesForRestrictBackgroundLocked();
+        try {
+            if (!mNetworkManager.setDataSaverModeEnabled(mRestrictBackground)) {
+                Slog.e(TAG, "Could not change Data Saver Mode on NMS to " + mRestrictBackground);
+                mRestrictBackground = oldRestrictBackground;
+                // TODO: if it knew the foreground apps (see TODO above), it could call
+                // updateRulesForRestrictBackgroundLocked() again to restore state.
+                return;
+            }
+        } catch (RemoteException e) {
+            // ignored; service lives in system_server
+        }
+        updateNotificationsLocked();
+        writePolicyLocked();
+    }
+
     @Override
     public void addRestrictBackgroundWhitelistedUid(int uid) {
         mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG);
-        if (!isUidValidForRules(uid)) return;
-        final boolean changed;
+        final boolean oldStatus;
         synchronized (mRulesLock) {
-            final boolean oldStatus = mRestrictBackgroundWhitelistUids.get(uid);
+            oldStatus = mRestrictBackgroundWhitelistUids.get(uid);
             if (oldStatus) {
                 if (LOGD) Slog.d(TAG, "uid " + uid + " is already whitelisted");
                 return;
             }
+            if (!isUidValidForWhitelistRules(uid)) {
+                if (LOGD) Slog.d(TAG, "no need to whitelist uid " + uid);
+                return;
+            }
             Slog.i(TAG, "adding uid " + uid + " to restrict background whitelist");
             mRestrictBackgroundWhitelistUids.append(uid, true);
             if (mDefaultRestrictBackgroundWhitelistUids.get(uid)
@@ -1929,13 +1958,10 @@
                         + " from revoked restrict background whitelist");
                 mRestrictBackgroundWhitelistRevokedUids.delete(uid);
             }
-            changed = mRestrictBackground && !oldStatus;
-            if (changed && hasInternetPermissions(uid)) {
-                setUidNetworkRules(uid, false);
-            }
+            updateRuleForRestrictBackgroundLocked(uid);
             writePolicyLocked();
         }
-        if (changed) {
+        if (mRestrictBackground && !oldStatus) {
             mHandler.obtainMessage(MSG_RESTRICT_BACKGROUND_WHITELIST_CHANGED, uid, 0)
                     .sendToTarget();
         }
@@ -1944,10 +1970,9 @@
     @Override
     public void removeRestrictBackgroundWhitelistedUid(int uid) {
         mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG);
-        if (!isUidValidForRules(uid)) return;
         final boolean changed;
         synchronized (mRulesLock) {
-            changed = removeRestrictBackgroundWhitelistedUidLocked(uid, true);
+            changed = removeRestrictBackgroundWhitelistedUidLocked(uid, false, true);
         }
         if (changed) {
             mHandler.obtainMessage(MSG_RESTRICT_BACKGROUND_WHITELIST_CHANGED, uid, 0)
@@ -1955,14 +1980,22 @@
         }
     }
 
-    private boolean removeRestrictBackgroundWhitelistedUidLocked(int uid, boolean updateNow) {
+    /**
+     * Removes a uid from the restricted background whitelist, returning whether its current
+     * {@link ConnectivityManager.RestrictBackgroundStatus} changed.
+     */
+    private boolean removeRestrictBackgroundWhitelistedUidLocked(int uid, boolean uidDeleted,
+            boolean updateNow) {
         final boolean oldStatus = mRestrictBackgroundWhitelistUids.get(uid);
         if (!oldStatus) {
             if (LOGD) Slog.d(TAG, "uid " + uid + " was not whitelisted before");
             return false;
         }
+        if (!uidDeleted && !isUidValidForWhitelistRules(uid)) {
+            if (LOGD) Slog.d(TAG, "no need to remove whitelist for uid " + uid);
+            return false;
+        }
         Slog.i(TAG, "removing uid " + uid + " from restrict background whitelist");
-        final boolean changed = mRestrictBackground && oldStatus;
         mRestrictBackgroundWhitelistUids.delete(uid);
         if (mDefaultRestrictBackgroundWhitelistUids.get(uid)
                 && !mRestrictBackgroundWhitelistRevokedUids.get(uid)) {
@@ -1970,13 +2003,13 @@
                     + " to revoked restrict background whitelist");
             mRestrictBackgroundWhitelistRevokedUids.append(uid, true);
         }
+        updateRuleForRestrictBackgroundLocked(uid, uidDeleted);
         if (updateNow) {
-            if (changed && hasInternetPermissions(uid)) {
-                setUidNetworkRules(uid, true);
-            }
             writePolicyLocked();
         }
-        return changed;
+        // Status only changes if Data Saver is turned on (otherwise it is DISABLED, even if the
+        // app was whitelisted before).
+        return mRestrictBackground;
     }
 
     @Override
@@ -2268,7 +2301,12 @@
                 final int state = mUidState.get(uid, ActivityManager.PROCESS_STATE_CACHED_EMPTY);
                 fout.print(" state=");
                 fout.print(state);
-                fout.print(state <= ActivityManager.PROCESS_STATE_TOP ? " (fg)" : " (bg)");
+                if (state <= ActivityManager.PROCESS_STATE_TOP) {
+                    fout.print(" (fg)");
+                } else {
+                    fout.print(state <= ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE
+                            ? " (fg svc)" : " (bg)");
+                }
 
                 final int rule = mUidRules.get(uid, RULE_UNKNOWN);
                 fout.print(" rule=");
@@ -2305,6 +2343,11 @@
                 mUidState.get(uid, ActivityManager.PROCESS_STATE_CACHED_EMPTY));
     }
 
+    private boolean isUidForegroundOnRestrictBackgroundLocked(int uid) {
+        final int procState = mUidState.get(uid, ActivityManager.PROCESS_STATE_CACHED_EMPTY);
+        return isProcStateAllowedWhileOnRestrictBackgroundLocked(procState);
+    }
+
     private boolean isUidStateForegroundLocked(int state) {
         // only really in foreground when screen is also on
         return mScreenOn && state <= ActivityManager.PROCESS_STATE_TOP;
@@ -2312,7 +2355,7 @@
 
     /**
      * Process state of UID changed; if needed, will trigger
-     * {@link #updateRestrictDataRulesForUidLocked(int)}.
+     * {@link #updateRuleForRestrictBackgroundLocked(int)}.
      */
     private void updateUidStateLocked(int uid, int uidState) {
         final int oldUidState = mUidState.get(uid, ActivityManager.PROCESS_STATE_CACHED_EMPTY);
@@ -2363,8 +2406,10 @@
 
     private void updateRestrictBackgroundRulesOnUidStatusChangedLocked(int uid, int oldUidState,
             int newUidState) {
-        final boolean oldForeground = oldUidState <= ActivityManager.PROCESS_STATE_TOP;
-        final boolean newForeground = newUidState <= ActivityManager.PROCESS_STATE_TOP;
+        final boolean oldForeground =
+                isProcStateAllowedWhileOnRestrictBackgroundLocked(oldUidState);
+        final boolean newForeground =
+                isProcStateAllowedWhileOnRestrictBackgroundLocked(newUidState);
         if (oldForeground != newForeground) {
             updateRuleForRestrictBackgroundLocked(uid);
         }
@@ -2388,7 +2433,7 @@
         // only update rules for anyone with foreground activities
         final int size = mUidState.size();
         for (int i = 0; i < size; i++) {
-            if (mUidState.valueAt(i) <= ActivityManager.PROCESS_STATE_TOP) {
+            if (mUidState.valueAt(i) <= ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE) {
                 final int uid = mUidState.keyAt(i);
                 updateRestrictionRulesForUidLocked(uid);
             }
@@ -2399,6 +2444,10 @@
         return procState <= ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE;
     }
 
+    static boolean isProcStateAllowedWhileOnRestrictBackgroundLocked(int procState) {
+        return procState <= ActivityManager.PROCESS_STATE_FOREGROUND_SERVICE;
+    }
+
     void updateRulesForRestrictPowerLocked() {
         updateRulesForWhitelistedPowerSaveLocked(mRestrictPower, FIREWALL_CHAIN_POWERSAVE,
                 mUidFirewallPowerSaveRules);
@@ -2492,7 +2541,7 @@
     }
 
     void updateRuleForAppIdleLocked(int uid) {
-        if (!isUidValidForRules(uid)) return;
+        if (!isUidValidForBlacklistRules(uid)) return;
 
         int appId = UserHandle.getAppId(uid);
         if (!mPowerSaveTempWhitelistAppIds.get(appId) && isUidIdle(uid)) {
@@ -2519,6 +2568,7 @@
         updateRulesForAppIdleLocked();
         updateRulesForRestrictPowerLocked();
         updateRulesForRestrictBackgroundLocked();
+        setRestrictBackgroundLocked(mRestrictBackground);
 
         // If the set of restricted networks may have changed, re-evaluate those.
         if (restrictedNetworksChanged) {
@@ -2552,10 +2602,6 @@
                 updateRuleForRestrictBackgroundLocked(uid);
             }
         }
-
-        // limit data usage for some internal system services
-        updateRuleForRestrictBackgroundLocked(android.os.Process.MEDIA_UID);
-        updateRuleForRestrictBackgroundLocked(android.os.Process.DRM_UID);
     }
 
     private void updateRulesForTempWhitelistChangeLocked() {
@@ -2572,16 +2618,22 @@
         }
     }
 
-    private boolean isUidValidForRules(int uid) {
-        // allow rules on specific system services, and any apps (that have network access)
+    // TODO: the MEDIA / DRM restriction might not be needed anymore, in which case both
+    // methods below could be merged into a isUidValidForRules() method.
+    private boolean isUidValidForBlacklistRules(int uid) {
+        // allow rules on specific system services, and any apps
         if (uid == android.os.Process.MEDIA_UID || uid == android.os.Process.DRM_UID
-                || (UserHandle.isApp(uid) && hasInternetPermissions(uid))) {
+            || (UserHandle.isApp(uid) && hasInternetPermissions(uid))) {
             return true;
         }
 
         return false;
     }
 
+    private boolean isUidValidForWhitelistRules(int uid) {
+        return UserHandle.isApp(uid) && hasInternetPermissions(uid);
+    }
+
     private boolean isUidIdle(int uid) {
         final String[] packages = mContext.getPackageManager().getPackagesForUid(uid);
         final int userId = UserHandle.getUserId(uid);
@@ -2626,45 +2678,142 @@
         updateRuleForRestrictBackgroundLocked(uid);
     }
 
+    /**
+     * Applies network rules to bandwidth controllers based on process state and user-defined
+     * restrictions (blacklist / whitelist).
+     *
+     * <p>
+     * {@code netd} defines 3 firewall chains that govern whether an app has access to metered
+     * networks:
+     * <ul>
+     * <li>@{code bw_penalty_box}: UIDs added to this chain do not have access (blacklist).
+     * <li>@{code bw_happy_box}: UIDs added to this chain have access (whitelist), unless they're
+     *     also blacklisted.
+     * <li>@{code bw_data_saver}: when enabled (through {@link #setRestrictBackground(boolean)}),
+     *     no UIDs other those whitelisted will have access.
+     * <ul>
+     *
+     * <p>The @{code bw_penalty_box} and @{code bw_happy_box} are primarily managed through the
+     * {@link #setUidPolicy(int, int)} and {@link #addRestrictBackgroundWhitelistedUid(int)} /
+     * {@link #removeRestrictBackgroundWhitelistedUid(int)} methods (for blacklist and whitelist
+     * respectively): these methods set the proper internal state (blacklist / whitelist), then call
+     * this ({@link #updateRuleForRestrictBackgroundLocked(int)}) to propagate the rules to
+     * {@link INetworkManagementService}, but this method should also be called in events (like
+     * Data Saver Mode flips or UID state changes) that might affect the foreground app, since the
+     * following rules should also be applied:
+     *
+     * <ul>
+     * <li>When Data Saver mode is on, the foreground app should be temporarily added to
+     *     {@code bw_happy_box} before the @{code bw_data_saver} chain is enabled.
+     * <li>If the foreground app is blacklisted by the user, it should be temporarily removed from
+     *     {@code bw_penalty_box}.
+     * <li>When the app leaves foreground state, the temporary changes above should be reverted.
+     * </ul>
+     *
+     * <p>For optimization, the rules are only applied on user apps that have internet access
+     * permission, since there is no need to change the {@code iptables} rule if the app does not
+     * have permission to use the internet.
+     *
+     * <p>The {@link #mUidRules} map is used to define the transtion of states of an UID.
+     */
     private void updateRuleForRestrictBackgroundLocked(int uid) {
-        if (!isUidValidForRules(uid)) return;
+        updateRuleForRestrictBackgroundLocked(uid, false);
+    }
+
+    /**
+     * Overloaded version of {@link #updateRuleForRestrictBackgroundLocked(int)} called when an
+     * app is removed - it ignores the UID validity check.
+     */
+    private void updateRuleForRestrictBackgroundLocked(int uid, boolean uidDeleted) {
+        if (!uidDeleted && !isUidValidForWhitelistRules(uid)) {
+            if (LOGD) Slog.d(TAG, "no need to update restrict data rules for uid " + uid);
+            return;
+        }
 
         final int uidPolicy = mUidPolicy.get(uid, POLICY_NONE);
-        final boolean uidForeground = isUidForegroundLocked(uid);
+        final boolean isForeground = isUidForegroundOnRestrictBackgroundLocked(uid);
+        final boolean isBlacklisted = (uidPolicy & POLICY_REJECT_METERED_BACKGROUND) != 0;
+        final boolean isWhitelisted = mRestrictBackgroundWhitelistUids.get(uid);
 
-        // Derive active rules based on policy and active state
         int newRule = RULE_ALLOW_ALL;
+        final int oldRule = mUidRules.get(uid);
 
-        if (!uidForeground) {
-            // If the app is not in foreground, reject access if:
-            // - app is blacklisted by policy or
-            // - data saver mode is and app is not whitelisted
-            if (((uidPolicy & POLICY_REJECT_METERED_BACKGROUND) != 0)
-                || (mRestrictBackground && !mRestrictBackgroundWhitelistUids.get(uid))) {
+        // First step: define the new rule based on user restrictions and foreground state.
+        if (isForeground) {
+            if (isBlacklisted || (mRestrictBackground && !isWhitelisted)) {
+                newRule = RULE_TEMPORARY_ALLOW_METERED;
+            }
+        } else {
+            if (isBlacklisted) {
                 newRule = RULE_REJECT_METERED;
+            } else if (isWhitelisted) {
+                newRule = RULE_ALLOW_METERED;
             }
         }
 
-        final int oldRule = mUidRules.get(uid);
         if (LOGV) {
-            Log.v(TAG, "updateRulesForRestrictBackgroundLocked(" + uid + "): oldRule = "
-                + ruleToString(oldRule) + ", newRule = " + ruleToString(newRule));
+            Log.v(TAG, "updateRuleForRestrictBackgroundLocked(" + uid + "):"
+                    + " isForeground=" +isForeground + ", isBlacklisted: " + isBlacklisted
+                    + ", isWhitelisted: " + isWhitelisted + ", newRule: " + ruleToString(newRule)
+                    + ", oldRule: " + ruleToString(oldRule));
         }
 
+
         if (newRule == RULE_ALLOW_ALL) {
             mUidRules.delete(uid);
         } else {
             mUidRules.put(uid, newRule);
         }
 
-        if (oldRule != newRule) {
-            final boolean rejectMetered = (newRule == RULE_REJECT_METERED);
-            setUidNetworkRules(uid, rejectMetered);
+        // Second step: apply bw changes based on change of state.
+        if (newRule != oldRule) {
+            if (newRule == RULE_TEMPORARY_ALLOW_METERED) {
+                // Temporarily whitelist foreground app, removing from blacklist if necessary
+                // (since bw_penalty_box prevails over bw_happy_box).
+
+                setMeteredNetworkWhitelist(uid, true);
+                // TODO: if statement below is used to avoid an unnecessary call to netd / iptables,
+                // but ideally it should be just:
+                //    setMeteredNetworkBlacklist(uid, isBlacklisted);
+                if (isBlacklisted) {
+                    setMeteredNetworkBlacklist(uid, false);
+                }
+            } else if (oldRule == RULE_TEMPORARY_ALLOW_METERED) {
+                // Remove temporary whitelist from app that is not on foreground anymore.
+
+                // TODO: if statements below are used to avoid unnecessary calls to netd / iptables,
+                // but ideally they should be just:
+                //    setMeteredNetworkWhitelist(uid, isWhitelisted);
+                //    setMeteredNetworkBlacklist(uid, isBlacklisted);
+                if (!isWhitelisted) {
+                    setMeteredNetworkWhitelist(uid, false);
+                }
+                if (isBlacklisted) {
+                    setMeteredNetworkBlacklist(uid, true);
+                }
+            } else if (newRule == RULE_REJECT_METERED || oldRule == RULE_REJECT_METERED) {
+                // Flip state because app was explicitly added or removed to blacklist.
+                setMeteredNetworkBlacklist(uid, isBlacklisted);
+                if (oldRule == RULE_REJECT_METERED && isWhitelisted) {
+                    // Since blacklist prevails over whitelist, we need to handle the special case
+                    // where app is whitelisted and blacklisted at the same time (although such
+                    // scenario should be blocked by the UI), then blacklist is removed.
+                    setMeteredNetworkWhitelist(uid, isWhitelisted);
+                }
+            } else if (newRule == RULE_ALLOW_METERED || oldRule == RULE_ALLOW_METERED) {
+                // Flip state because app was explicitly added or removed to whitelist.
+                setMeteredNetworkWhitelist(uid, isWhitelisted);
+            } else {
+                // All scenarios should have been covered above
+                Log.wtf(TAG, "Unexpected change of state for " + uid
+                        + ": foreground=" + isForeground + ", whitelisted=" + isWhitelisted
+                        + ", blacklisted=" + isBlacklisted + ", newRule="
+                        + ruleToString(newRule) + ", oldRule=" + ruleToString(oldRule));
+            }
 
             // dispatch changed rule to existing listeners
             mHandler.obtainMessage(MSG_RULES_CHANGED, uid, newRule).sendToTarget();
         }
-
     }
 
     private class AppIdleStateChangeListener
@@ -2825,11 +2974,23 @@
         }
     }
 
-    private void setUidNetworkRules(int uid, boolean rejectOnQuotaInterfaces) {
+    private void setMeteredNetworkBlacklist(int uid, boolean enable) {
+        if (LOGV) Slog.v(TAG, "setMeteredNetworkBlacklist " + uid + ": " + enable);
         try {
-            mNetworkManager.setUidMeteredNetworkBlacklist(uid, rejectOnQuotaInterfaces);
+            mNetworkManager.setUidMeteredNetworkBlacklist(uid, enable);
         } catch (IllegalStateException e) {
-            Log.wtf(TAG, "problem setting uid rules", e);
+            Log.wtf(TAG, "problem setting blacklist (" + enable + ") rules for " + uid, e);
+        } catch (RemoteException e) {
+            // ignored; service lives in system_server
+        }
+    }
+
+    private void setMeteredNetworkWhitelist(int uid, boolean enable) {
+        if (LOGV) Slog.v(TAG, "setMeteredNetworkWhitelist " + uid + ": " + enable);
+        try {
+            mNetworkManager.setUidMeteredNetworkWhitelist(uid, enable);
+        } catch (IllegalStateException e) {
+            Log.wtf(TAG, "problem setting whitelist (" + enable + ") rules for " + uid, e);
         } catch (RemoteException e) {
             // ignored; service lives in system_server
         }
@@ -3011,7 +3172,7 @@
         public void onPackageRemoved(String packageName, int uid) {
             if (LOGV) Slog.v(TAG, "onPackageRemoved: " + packageName + " ->" + uid);
             synchronized (mRulesLock) {
-                removeRestrictBackgroundWhitelistedUidLocked(uid, true);
+                removeRestrictBackgroundWhitelistedUidLocked(uid, true, true);
             }
         }
     }
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 0f23fde..e9d721c 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -1852,10 +1852,16 @@
         }
 
         private boolean checkPolicyAccess(String pkg) {
-            if (PackageManager.PERMISSION_GRANTED == ActivityManager.checkComponentPermission(
-                    android.Manifest.permission.MANAGE_NOTIFICATIONS, Binder.getCallingUid(),
-                    -1, true)) {
-                return true;
+            try {
+                int uid = getContext().getPackageManager().getPackageUidAsUser(
+                        pkg, UserHandle.getCallingUserId());
+                if (PackageManager.PERMISSION_GRANTED == ActivityManager.checkComponentPermission(
+                        android.Manifest.permission.MANAGE_NOTIFICATIONS, uid,
+                        -1, true)) {
+                    return true;
+                }
+            } catch (NameNotFoundException e) {
+                return false;
             }
             return checkPackagePolicyAccess(pkg) || mListeners.isComponentEnabledForPackage(pkg);
         }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index d2fd762..926ff37 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -106,6 +106,7 @@
 import android.app.IActivityManager;
 import android.app.admin.DevicePolicyManagerInternal;
 import android.app.admin.IDevicePolicyManager;
+import android.app.admin.SecurityLog;
 import android.app.backup.IBackupManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
@@ -459,6 +460,8 @@
 
     final PackageHandler mHandler;
 
+    private final ProcessLoggingHandler mProcessLoggingHandler;
+
     /**
      * Messages for {@link #mHandler} that need to wait for system ready before
      * being dispatched.
@@ -1712,6 +1715,8 @@
 
             // Send installed broadcasts if the install/update is not ephemeral
             if (!isEphemeral(res.pkg)) {
+                mProcessLoggingHandler.invalidateProcessLoggingBaseApkHash(res.pkg.baseCodePath);
+
                 // Send added for users that see the package for the first time
                 sendPackageBroadcast(Intent.ACTION_PACKAGE_ADDED, packageName,
                         extras, 0 /*flags*/, null /*targetPackage*/,
@@ -2096,6 +2101,7 @@
                     Process.THREAD_PRIORITY_BACKGROUND, true /*allowIo*/);
             mHandlerThread.start();
             mHandler = new PackageHandler(mHandlerThread.getLooper());
+            mProcessLoggingHandler = new ProcessLoggingHandler();
             Watchdog.getInstance().addThread(mHandler, WATCHDOG_TIMEOUT);
 
             File dataDir = Environment.getDataDirectory();
@@ -6920,8 +6926,8 @@
     }
 
     @Override
-    public void extractPackagesIfNeeded() {
-        enforceSystemOrRoot("Only the system can request package extraction");
+    public void updatePackagesIfNeeded() {
+        enforceSystemOrRoot("Only the system can request package update");
 
         // We need to re-extract after an OTA.
         boolean causeUpgrade = isUpgrade();
@@ -6952,23 +6958,15 @@
                 Log.i(TAG, "Extracting app " + curr + " of " + total + ": " + pkg.packageName);
             }
 
-            if (!isFirstBoot()) {
-                try {
-                    ActivityManagerNative.getDefault().showBootMessage(
-                            mContext.getResources().getString(R.string.android_upgrading_apk,
-                                    curr, total), true);
-                } catch (RemoteException e) {
-                }
-            }
-
             if (PackageDexOptimizer.canOptimizePackage(pkg)) {
                 // If the cache was pruned, any compiled odex files will likely be out of date
                 // and would have to be patched (would be SELF_PATCHOAT, which is deprecated).
                 // Instead, force the extraction in this case.
-                performDexOpt(pkg.packageName, null /* instructionSet */,
-                         false /* checkProfiles */,
-                         causeFirstBoot ? REASON_FIRST_BOOT : REASON_BOOT,
-                         causePrunedCache);
+                performDexOpt(pkg.packageName,
+                        null /* instructionSet */,
+                        false /* checkProfiles */,
+                        causeFirstBoot ? REASON_FIRST_BOOT : REASON_BOOT,
+                        false /* force */);
             }
         }
     }
@@ -7241,9 +7239,9 @@
     private void deleteProfilesLI(PackageParser.Package pkg, boolean destroy) {
         try {
             if (destroy) {
-                mInstaller.clearAppProfiles(pkg.packageName);
-            } else {
                 mInstaller.destroyAppProfiles(pkg.packageName);
+            } else {
+                mInstaller.clearAppProfiles(pkg.packageName);
             }
         } catch (InstallerException ex) {
             Log.e(TAG, "Could not delete profiles for package " + pkg.packageName);
@@ -14515,7 +14513,6 @@
             if (DEBUG_REMOVE) Slog.d(TAG, "deletePackageX: pkg=" + packageName + " user=" + userId);
             res = deletePackageLI(packageName, removeForUser, true, allUsers,
                     flags | REMOVE_CHATTY, info, true, null);
-            deleteProfilesLI(packageName, /*destroy*/ true);
             synchronized (mPackages) {
                 if (res) {
                     mEphemeralApplicationRegistry.onPackageUninstalledLPw(uninstalledPs.pkg);
@@ -19458,4 +19455,26 @@
             return new ArrayList<>(mPackages.values());
         }
     }
+
+    /**
+     * Logs process start information (including base APK hash) to the security log.
+     * @hide
+     */
+    public void logAppProcessStartIfNeeded(String processName, int uid, String seinfo,
+            String apkFile, int pid) {
+        if (!SecurityLog.isLoggingEnabled()) {
+            return;
+        }
+        Bundle data = new Bundle();
+        data.putLong("startTimestamp", System.currentTimeMillis());
+        data.putString("processName", processName);
+        data.putInt("uid", uid);
+        data.putString("seinfo", seinfo);
+        data.putString("apkFile", apkFile);
+        data.putInt("pid", pid);
+        Message msg = mProcessLoggingHandler.obtainMessage(
+                ProcessLoggingHandler.LOG_APP_PROCESS_START_MSG);
+        msg.setData(data);
+        mProcessLoggingHandler.sendMessage(msg);
+    }
 }
diff --git a/services/core/java/com/android/server/pm/ProcessLoggingHandler.java b/services/core/java/com/android/server/pm/ProcessLoggingHandler.java
new file mode 100644
index 0000000..c47dda4
--- /dev/null
+++ b/services/core/java/com/android/server/pm/ProcessLoggingHandler.java
@@ -0,0 +1,112 @@
+/*
+ * 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.server.pm;
+
+import android.app.admin.SecurityLog;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+
+import com.android.internal.os.BackgroundThread;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+import java.util.HashMap;
+import android.util.Slog;
+
+public final class ProcessLoggingHandler extends Handler {
+
+    private static final String TAG = "ProcessLoggingHandler";
+    static final int LOG_APP_PROCESS_START_MSG = 1;
+    static final int INVALIDATE_BASE_APK_HASH_MSG = 2;
+
+    private final HashMap<String, String> mProcessLoggingBaseApkHashes = new HashMap();
+
+    ProcessLoggingHandler() {
+        super(BackgroundThread.getHandler().getLooper());
+    }
+
+    @Override
+    public void handleMessage(Message msg) {
+        switch (msg.what) {
+            case LOG_APP_PROCESS_START_MSG: {
+                Bundle bundle = msg.getData();
+                String processName = bundle.getString("processName");
+                int uid = bundle.getInt("uid");
+                String seinfo = bundle.getString("seinfo");
+                String apkFile = bundle.getString("apkFile");
+                int pid = bundle.getInt("pid");
+                long startTimestamp = bundle.getLong("startTimestamp");
+                String apkHash = computeStringHashOfApk(apkFile);
+                SecurityLog.writeEvent(SecurityLog.TAG_APP_PROCESS_START, processName,
+                        startTimestamp, uid, pid, seinfo, apkHash);
+                break;
+            }
+            case INVALIDATE_BASE_APK_HASH_MSG: {
+                Bundle bundle = msg.getData();
+                mProcessLoggingBaseApkHashes.remove(bundle.getString("apkFile"));
+                break;
+            }
+        }
+    }
+
+    void invalidateProcessLoggingBaseApkHash(String apkPath) {
+        Bundle data = new Bundle();
+        data.putString("apkFile", apkPath);
+        Message msg = obtainMessage(INVALIDATE_BASE_APK_HASH_MSG);
+        msg.setData(data);
+        sendMessage(msg);
+    }
+
+    private String computeStringHashOfApk(String apkFile) {
+        if (apkFile == null) {
+            return "No APK";
+        }
+        String apkHash = mProcessLoggingBaseApkHashes.get(apkFile);
+        if (apkHash == null) {
+            try {
+                byte[] hash = computeHashOfApkFile(apkFile);
+                StringBuilder sb = new StringBuilder();
+                for (int i = 0; i < hash.length; i++) {
+                    sb.append(String.format("%02x", hash[i]));
+                }
+                apkHash = sb.toString();
+                mProcessLoggingBaseApkHashes.put(apkFile, apkHash);
+            } catch (IOException | NoSuchAlgorithmException e) {
+                Slog.w(TAG, "computeStringHashOfApk() failed", e);
+            }
+        }
+        return apkHash != null ? apkHash : "Failed to count APK hash";
+    }
+
+    private byte[] computeHashOfApkFile(String packageArchiveLocation)
+            throws IOException, NoSuchAlgorithmException {
+        MessageDigest md = MessageDigest.getInstance("SHA-256");
+        FileInputStream input = new FileInputStream(new File(packageArchiveLocation));
+        byte[] buffer = new byte[65536];
+        int size;
+        while ((size = input.read(buffer)) > 0) {
+            md.update(buffer, 0, size);
+        }
+        input.close();
+        return md.digest();
+    }
+}
diff --git a/services/core/java/com/android/server/pm/ShortcutLauncher.java b/services/core/java/com/android/server/pm/ShortcutLauncher.java
index b759e16..7699f30 100644
--- a/services/core/java/com/android/server/pm/ShortcutLauncher.java
+++ b/services/core/java/com/android/server/pm/ShortcutLauncher.java
@@ -32,7 +32,7 @@
 /**
  * Launcher information used by {@link ShortcutService}.
  */
-class ShortcutLauncher implements ShortcutPackageItem {
+class ShortcutLauncher extends ShortcutPackageItem {
     private static final String TAG = ShortcutService.TAG;
 
     static final String TAG_ROOT = "launcher-pins";
@@ -44,44 +44,34 @@
     private static final String ATTR_VALUE = "value";
     private static final String ATTR_PACKAGE_NAME = "package-name";
 
-    @UserIdInt
-    private final int mUserId;
-
-    @NonNull
-    private final String mPackageName;
-
-    @UserIdInt
-    private final int mLauncherUserId;
+    private final int mOwnerUserId;
 
     /**
      * Package name -> IDs.
      */
     final private ArrayMap<String, ArraySet<String>> mPinnedShortcuts = new ArrayMap<>();
 
-    ShortcutLauncher(@UserIdInt int userId, @NonNull String packageName,
+    public ShortcutLauncher(@UserIdInt int ownerUserId, @NonNull String packageName,
+            @UserIdInt int launcherUserId, ShortcutPackageInfo spi) {
+        super(launcherUserId, packageName, spi != null ? spi : ShortcutPackageInfo.newEmpty());
+        mOwnerUserId = ownerUserId;
+    }
+
+    public ShortcutLauncher(@UserIdInt int ownerUserId, @NonNull String packageName,
             @UserIdInt int launcherUserId) {
-        mUserId = userId;
-        mPackageName = packageName;
-        mLauncherUserId = launcherUserId;
+        this(launcherUserId, packageName, launcherUserId, null);
     }
 
-    @UserIdInt
-    public int getUserId() {
-        return mUserId;
+    @Override
+    public int getOwnerUserId() {
+        return mOwnerUserId;
     }
 
-    @UserIdInt
-    public int getLauncherUserId() {
-        return mLauncherUserId;
-    }
+    public void pinShortcuts(@NonNull ShortcutService s, @UserIdInt int packageUserId,
+            @NonNull String packageName, @NonNull List<String> ids) {
+        final ShortcutPackage packageShortcuts =
+                s.getPackageShortcutsLocked(packageName, packageUserId);
 
-    @NonNull
-    public String getPackageName() {
-        return mPackageName;
-    }
-
-    public void pinShortcuts(@NonNull ShortcutService s, @NonNull String packageName,
-            @NonNull List<String> ids) {
         final int idSize = ids.size();
         if (idSize == 0) {
             mPinnedShortcuts.remove(packageName);
@@ -91,8 +81,6 @@
             // Pin shortcuts.  Make sure only pin the ones that were visible to the caller.
             // i.e. a non-dynamic, pinned shortcut by *other launchers* shouldn't be pinned here.
 
-            final ShortcutPackage packageShortcuts =
-                    s.getPackageShortcutsLocked(packageName, mUserId);
             final ArraySet<String> newSet = new ArraySet<>();
 
             for (int i = 0; i < idSize; i++) {
@@ -107,7 +95,7 @@
             }
             mPinnedShortcuts.put(packageName, newSet);
         }
-        s.getPackageShortcutsLocked(packageName, mUserId).refreshPinnedFlags(s);
+        packageShortcuts.refreshPinnedFlags(s);
     }
 
     /**
@@ -124,15 +112,18 @@
     /**
      * Persist.
      */
-    public void saveToXml(XmlSerializer out, boolean forBackup) throws IOException {
+    @Override
+    public void saveToXml(XmlSerializer out, boolean forBackup)
+            throws IOException {
         final int size = mPinnedShortcuts.size();
         if (size == 0) {
             return; // Nothing to write.
         }
 
         out.startTag(null, TAG_ROOT);
-        ShortcutService.writeAttr(out, ATTR_PACKAGE_NAME, mPackageName);
-        ShortcutService.writeAttr(out, ATTR_LAUNCHER_USER_ID, mLauncherUserId);
+        ShortcutService.writeAttr(out, ATTR_PACKAGE_NAME, getPackageName());
+        ShortcutService.writeAttr(out, ATTR_LAUNCHER_USER_ID, getPackageUserId());
+        getPackageInfo().saveToXml(out);
 
         for (int i = 0; i < size; i++) {
             out.startTag(null, TAG_PACKAGE);
@@ -153,16 +144,21 @@
     /**
      * Load.
      */
-    public static ShortcutLauncher loadFromXml(XmlPullParser parser, int ownerUserId)
-            throws IOException, XmlPullParserException {
+    public static ShortcutLauncher loadFromXml(XmlPullParser parser, int ownerUserId,
+            boolean fromBackup) throws IOException, XmlPullParserException {
         final String launcherPackageName = ShortcutService.parseStringAttribute(parser,
                 ATTR_PACKAGE_NAME);
-        final int launcherUserId = ShortcutService.parseIntAttribute(parser,
-                ATTR_LAUNCHER_USER_ID, ownerUserId);
+
+        // If restoring, just use the real user ID.
+        final int launcherUserId =
+                fromBackup ? ownerUserId
+                : ShortcutService.parseIntAttribute(parser, ATTR_LAUNCHER_USER_ID, ownerUserId);
 
         final ShortcutLauncher ret = new ShortcutLauncher(launcherUserId, launcherPackageName,
                 launcherUserId);
 
+        ShortcutPackageInfo spi = null;
+
         ArraySet<String> ids = null;
         final int outerDepth = parser.getDepth();
         int type;
@@ -173,21 +169,33 @@
             }
             final int depth = parser.getDepth();
             final String tag = parser.getName();
-            switch (tag) {
-                case TAG_PACKAGE: {
-                    final String packageName = ShortcutService.parseStringAttribute(parser,
-                            ATTR_PACKAGE_NAME);
-                    ids = new ArraySet<>();
-                    ret.mPinnedShortcuts.put(packageName, ids);
-                    continue;
-                }
-                case TAG_PIN: {
-                    ids.add(ShortcutService.parseStringAttribute(parser,
-                            ATTR_VALUE));
-                    continue;
+            if (depth == outerDepth + 1) {
+                switch (tag) {
+                    case ShortcutPackageInfo.TAG_ROOT:
+                        spi = ShortcutPackageInfo.loadFromXml(parser);
+                        continue;
+                    case TAG_PACKAGE: {
+                        final String packageName = ShortcutService.parseStringAttribute(parser,
+                                ATTR_PACKAGE_NAME);
+                        ids = new ArraySet<>();
+                        ret.mPinnedShortcuts.put(packageName, ids);
+                        continue;
+                    }
                 }
             }
-            throw ShortcutService.throwForInvalidTag(depth, tag);
+            if (depth == outerDepth + 2) {
+                switch (tag) {
+                    case TAG_PIN: {
+                        ids.add(ShortcutService.parseStringAttribute(parser,
+                                ATTR_VALUE));
+                        continue;
+                    }
+                }
+            }
+            ShortcutService.warnForInvalidTag(depth, tag);
+        }
+        if (spi != null) {
+            ret.replacePackageInfo(spi);
         }
         return ret;
     }
@@ -197,9 +205,12 @@
 
         pw.print(prefix);
         pw.print("Launcher: ");
-        pw.print(mPackageName);
-        pw.print("  UserId: ");
-        pw.print(mLauncherUserId);
+        pw.print(getPackageName());
+        pw.print("  Package user: ");
+        pw.print(getPackageUserId());
+        pw.println();
+
+        getPackageInfo().dump(s, pw, prefix + "  ");
         pw.println();
 
         final int size = mPinnedShortcuts.size();
diff --git a/services/core/java/com/android/server/pm/ShortcutPackage.java b/services/core/java/com/android/server/pm/ShortcutPackage.java
index e4d5787..5916202 100644
--- a/services/core/java/com/android/server/pm/ShortcutPackage.java
+++ b/services/core/java/com/android/server/pm/ShortcutPackage.java
@@ -17,7 +17,6 @@
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.annotation.UserIdInt;
 import android.content.ComponentName;
 import android.content.Intent;
 import android.content.pm.ShortcutInfo;
@@ -41,7 +40,7 @@
 /**
  * Package information used by {@link ShortcutService}.
  */
-class ShortcutPackage implements ShortcutPackageItem {
+class ShortcutPackage extends ShortcutPackageItem {
     private static final String TAG = ShortcutService.TAG;
 
     static final String TAG_ROOT = "package";
@@ -56,6 +55,7 @@
     private static final String ATTR_ID = "id";
     private static final String ATTR_ACTIVITY = "activity";
     private static final String ATTR_TITLE = "title";
+    private static final String ATTR_TEXT = "text";
     private static final String ATTR_INTENT = "intent";
     private static final String ATTR_WEIGHT = "weight";
     private static final String ATTR_TIMESTAMP = "timestamp";
@@ -63,12 +63,6 @@
     private static final String ATTR_ICON_RES = "icon-res";
     private static final String ATTR_BITMAP_PATH = "bitmap-path";
 
-    @UserIdInt
-    private final int mUserId;
-
-    @NonNull
-    private final String mPackageName;
-
     /**
      * All the shortcuts from the package, keyed on IDs.
      */
@@ -89,19 +83,18 @@
      */
     private long mLastResetTime;
 
-    ShortcutPackage(int userId, String packageName) {
-        mUserId = userId;
-        mPackageName = packageName;
+    public ShortcutPackage(int packageUserId, String packageName, ShortcutPackageInfo spi) {
+        super(packageUserId, packageName, spi != null ? spi : ShortcutPackageInfo.newEmpty());
     }
 
-    @UserIdInt
-    public int getUserId() {
-        return mUserId;
+    public ShortcutPackage(int packageUserId, String packageName) {
+        this(packageUserId, packageName, null);
     }
 
-    @NonNull
-    public String getPackageName() {
-        return mPackageName;
+    @Override
+    public int getOwnerUserId() {
+        // For packages, always owner user == package user.
+        return getPackageUserId();
     }
 
     /**
@@ -116,7 +109,7 @@
             @NonNull String id) {
         final ShortcutInfo shortcut = mShortcuts.remove(id);
         if (shortcut != null) {
-            s.removeIcon(mUserId, shortcut);
+            s.removeIcon(getPackageUserId(), shortcut);
             shortcut.clearFlags(ShortcutInfo.FLAG_DYNAMIC | ShortcutInfo.FLAG_PINNED);
         }
         return shortcut;
@@ -124,7 +117,7 @@
 
     void addShortcut(@NonNull ShortcutService s, @NonNull ShortcutInfo newShortcut) {
         deleteShortcut(s, newShortcut.getId());
-        s.saveIconAndFixUpShortcut(mUserId, newShortcut);
+        s.saveIconAndFixUpShortcut(getPackageUserId(), newShortcut);
         mShortcuts.put(newShortcut.getId(), newShortcut);
     }
 
@@ -233,11 +226,12 @@
 
         // Then, for the pinned set for each launcher, set the pin flag one by one.
         final ArrayMap<ShortcutUser.PackageWithUser, ShortcutLauncher> launchers =
-                s.getUserShortcutsLocked(mUserId).getAllLaunchers();
+                s.getUserShortcutsLocked(getPackageUserId()).getAllLaunchers();
 
         for (int l = launchers.size() - 1; l >= 0; l--) {
             final ShortcutLauncher launcherShortcuts = launchers.valueAt(l);
-            final ArraySet<String> pinned = launcherShortcuts.getPinnedShortcutIds(mPackageName);
+            final ArraySet<String> pinned = launcherShortcuts.getPinnedShortcutIds(
+                    getPackageName());
 
             if (pinned == null || pinned.size() == 0) {
                 continue;
@@ -321,8 +315,8 @@
 
         // Set of pinned shortcuts by the calling launcher.
         final ArraySet<String> pinnedByCallerSet = (callingLauncher == null) ? null
-                : s.getLauncherShortcuts(callingLauncher, mUserId, launcherUserId)
-                    .getPinnedShortcutIds(mPackageName);
+                : s.getLauncherShortcuts(callingLauncher, getPackageUserId(), launcherUserId)
+                    .getPinnedShortcutIds(getPackageName());
 
         for (int i = 0; i < mShortcuts.size(); i++) {
             final ShortcutInfo si = mShortcuts.valueAt(i);
@@ -362,7 +356,7 @@
 
         pw.print(prefix);
         pw.print("Package: ");
-        pw.print(mPackageName);
+        pw.print(getPackageName());
         pw.println();
 
         pw.print(prefix);
@@ -380,6 +374,9 @@
         pw.print(s.formatTime(mLastResetTime));
         pw.println();
 
+        getPackageInfo().dump(s, pw, prefix + "  ");
+        pw.println();
+
         pw.println("      Shortcuts:");
         long totalBitmapSize = 0;
         final ArrayMap<String, ShortcutInfo> shortcuts = mShortcuts;
@@ -406,6 +403,7 @@
         pw.println(")");
     }
 
+    @Override
     public void saveToXml(@NonNull XmlSerializer out, boolean forBackup)
             throws IOException, XmlPullParserException {
         final int size = mShortcuts.size();
@@ -416,10 +414,11 @@
 
         out.startTag(null, TAG_ROOT);
 
-        ShortcutService.writeAttr(out, ATTR_NAME, mPackageName);
+        ShortcutService.writeAttr(out, ATTR_NAME, getPackageName());
         ShortcutService.writeAttr(out, ATTR_DYNAMIC_COUNT, mDynamicShortcutCount);
         ShortcutService.writeAttr(out, ATTR_CALL_COUNT, mApiCallCount);
         ShortcutService.writeAttr(out, ATTR_LAST_RESET, mLastResetTime);
+        getPackageInfo().saveToXml(out);
 
         for (int j = 0; j < size; j++) {
             saveShortcut(out, mShortcuts.valueAt(j), forBackup);
@@ -441,6 +440,7 @@
         ShortcutService.writeAttr(out, ATTR_ACTIVITY, si.getActivityComponent());
         // writeAttr(out, "icon", si.getIcon());  // We don't save it.
         ShortcutService.writeAttr(out, ATTR_TITLE, si.getTitle());
+        ShortcutService.writeAttr(out, ATTR_TEXT, si.getText());
         ShortcutService.writeAttr(out, ATTR_INTENT, si.getIntentNoExtras());
         ShortcutService.writeAttr(out, ATTR_WEIGHT, si.getWeight());
         ShortcutService.writeAttr(out, ATTR_TIMESTAMP,
@@ -464,13 +464,14 @@
         out.endTag(null, TAG_SHORTCUT);
     }
 
-    public static ShortcutPackage loadFromXml(XmlPullParser parser, int userId)
+    public static ShortcutPackage loadFromXml(ShortcutService s, XmlPullParser parser,
+            int ownerUserId, boolean fromBackup)
             throws IOException, XmlPullParserException {
 
         final String packageName = ShortcutService.parseStringAttribute(parser,
                 ATTR_NAME);
 
-        final ShortcutPackage ret = new ShortcutPackage(userId, packageName);
+        final ShortcutPackage ret = new ShortcutPackage(ownerUserId, packageName);
 
         ret.mDynamicShortcutCount =
                 ShortcutService.parseIntAttribute(parser, ATTR_DYNAMIC_COUNT);
@@ -478,6 +479,7 @@
                 ShortcutService.parseIntAttribute(parser, ATTR_CALL_COUNT);
         ret.mLastResetTime =
                 ShortcutService.parseLongAttribute(parser, ATTR_LAST_RESET);
+        ShortcutPackageInfo spi = null;
 
         final int outerDepth = parser.getDepth();
         int type;
@@ -488,15 +490,23 @@
             }
             final int depth = parser.getDepth();
             final String tag = parser.getName();
-            switch (tag) {
-                case TAG_SHORTCUT:
-                    final ShortcutInfo si = parseShortcut(parser, packageName);
+            if (depth == outerDepth + 1) {
+                switch (tag) {
+                    case ShortcutPackageInfo.TAG_ROOT:
+                        spi = ShortcutPackageInfo.loadFromXml(parser);
+                        continue;
+                    case TAG_SHORTCUT:
+                        final ShortcutInfo si = parseShortcut(parser, packageName);
 
-                    // Don't use addShortcut(), we don't need to save the icon.
-                    ret.mShortcuts.put(si.getId(), si);
-                    continue;
+                        // Don't use addShortcut(), we don't need to save the icon.
+                        ret.mShortcuts.put(si.getId(), si);
+                        continue;
+                }
             }
-            throw ShortcutService.throwForInvalidTag(depth, tag);
+            ShortcutService.warnForInvalidTag(depth, tag);
+        }
+        if (spi != null) {
+            ret.replacePackageInfo(spi);
         }
         return ret;
     }
@@ -507,6 +517,7 @@
         ComponentName activityComponent;
         // Icon icon;
         String title;
+        String text;
         Intent intent;
         PersistableBundle intentPersistableExtras = null;
         int weight;
@@ -520,10 +531,10 @@
         activityComponent = ShortcutService.parseComponentNameAttribute(parser,
                 ATTR_ACTIVITY);
         title = ShortcutService.parseStringAttribute(parser, ATTR_TITLE);
+        text = ShortcutService.parseStringAttribute(parser, ATTR_TEXT);
         intent = ShortcutService.parseIntentAttribute(parser, ATTR_INTENT);
         weight = (int) ShortcutService.parseLongAttribute(parser, ATTR_WEIGHT);
-        lastChangedTimestamp = (int) ShortcutService.parseLongAttribute(parser,
-                ATTR_TIMESTAMP);
+        lastChangedTimestamp = ShortcutService.parseLongAttribute(parser, ATTR_TIMESTAMP);
         flags = (int) ShortcutService.parseLongAttribute(parser, ATTR_FLAGS);
         iconRes = (int) ShortcutService.parseLongAttribute(parser, ATTR_ICON_RES);
         bitmapPath = ShortcutService.parseStringAttribute(parser, ATTR_BITMAP_PATH);
@@ -552,7 +563,7 @@
             throw ShortcutService.throwForInvalidTag(depth, tag);
         }
         return new ShortcutInfo(
-                id, packageName, activityComponent, /* icon =*/ null, title, intent,
+                id, packageName, activityComponent, /* icon =*/ null, title, text, intent,
                 intentPersistableExtras, weight, extras, lastChangedTimestamp, flags,
                 iconRes, bitmapPath);
     }
diff --git a/services/core/java/com/android/server/pm/ShortcutPackageInfo.java b/services/core/java/com/android/server/pm/ShortcutPackageInfo.java
index ab45689..5f706b8 100644
--- a/services/core/java/com/android/server/pm/ShortcutPackageInfo.java
+++ b/services/core/java/com/android/server/pm/ShortcutPackageInfo.java
@@ -15,14 +15,11 @@
  */
 package com.android.server.pm;
 
-import android.annotation.NonNull;
 import android.annotation.UserIdInt;
-import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageInfo;
-import android.content.pm.Signature;
 import android.util.Slog;
 
-import com.android.internal.util.Preconditions;
+import com.android.server.backup.BackupUtils;
 
 import libcore.io.Base64;
 import libcore.util.HexEncoding;
@@ -33,32 +30,21 @@
 
 import java.io.IOException;
 import java.io.PrintWriter;
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
 import java.util.ArrayList;
-import java.util.Arrays;
 
 /**
  * Package information used by {@link android.content.pm.ShortcutManager} for backup / restore.
- *
- * TODO: The methods about signature hashes are copied from BackupManagerService, which is not
- * visible here.  Unify the code.
  */
-class ShortcutPackageInfo implements ShortcutPackageItem {
+class ShortcutPackageInfo {
     private static final String TAG = ShortcutService.TAG;
 
     static final String TAG_ROOT = "package-info";
-    private static final String ATTR_USER_ID = "user";
-    private static final String ATTR_NAME = "name";
     private static final String ATTR_VERSION = "version";
     private static final String ATTR_SHADOW = "shadow";
 
     private static final String TAG_SIGNATURE = "signature";
     private static final String ATTR_SIGNATURE_HASH = "hash";
 
-    private final String mPackageName;
-    private final int mUserId;
-
     /**
      * When true, this package information was restored from the previous device, and the app hasn't
      * been installed yet.
@@ -67,22 +53,14 @@
     private int mVersionCode;
     private ArrayList<byte[]> mSigHashes;
 
-    private ShortcutPackageInfo(String packageName, int userId,
-            int versionCode, ArrayList<byte[]> sigHashes, boolean isShadow) {
-        mPackageName = Preconditions.checkNotNull(packageName);
-        mUserId = userId;
+    private ShortcutPackageInfo(int versionCode, ArrayList<byte[]> sigHashes, boolean isShadow) {
         mVersionCode = versionCode;
         mIsShadow = isShadow;
         mSigHashes = sigHashes;
     }
 
-    @NonNull
-    public String getPackageName() {
-        return mPackageName;
-    }
-
-    public int getUserId() {
-        return mUserId;
+    public static ShortcutPackageInfo newEmpty() {
+        return new ShortcutPackageInfo(0, new ArrayList<>(0), /* isShadow */ false);
     }
 
     public boolean isShadow() {
@@ -101,92 +79,13 @@
         return mVersionCode;
     }
 
-    private static byte[] hashSignature(Signature sig) {
-        try {
-            MessageDigest digest = MessageDigest.getInstance("SHA-256");
-            digest.update(sig.toByteArray());
-            return digest.digest();
-        } catch (NoSuchAlgorithmException e) {
-            Slog.w(TAG, "No SHA-256 algorithm found!");
-        }
-        return null;
-    }
-
-    private static ArrayList<byte[]> hashSignatureArray(Signature[] sigs) {
-        if (sigs == null) {
-            return null;
-        }
-
-        ArrayList<byte[]> hashes = new ArrayList<byte[]>(sigs.length);
-        for (Signature s : sigs) {
-            hashes.add(hashSignature(s));
-        }
-        return hashes;
-    }
-
-    private static boolean signaturesMatch(ArrayList<byte[]> storedSigHashes, PackageInfo target) {
-        if (target == null) {
-            return false;
-        }
-
-        // If the target resides on the system partition, we allow it to restore
-        // data from the like-named package in a restore set even if the signatures
-        // do not match.  (Unlike general applications, those flashed to the system
-        // partition will be signed with the device's platform certificate, so on
-        // different phones the same system app will have different signatures.)
-        if ((target.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
-            return true;
-        }
-
-        // Allow unsigned apps, but not signed on one device and unsigned on the other
-        // !!! TODO: is this the right policy?
-        Signature[] deviceSigs = target.signatures;
-        if ((storedSigHashes == null || storedSigHashes.size() == 0)
-                && (deviceSigs == null || deviceSigs.length == 0)) {
-            return true;
-        }
-        if (storedSigHashes == null || deviceSigs == null) {
-            return false;
-        }
-
-        // !!! TODO: this demands that every stored signature match one
-        // that is present on device, and does not demand the converse.
-        // Is this this right policy?
-        final int nStored = storedSigHashes.size();
-        final int nDevice = deviceSigs.length;
-
-        // hash each on-device signature
-        ArrayList<byte[]> deviceHashes = new ArrayList<byte[]>(nDevice);
-        for (int i = 0; i < nDevice; i++) {
-            deviceHashes.add(hashSignature(deviceSigs[i]));
-        }
-
-        // now ensure that each stored sig (hash) matches an on-device sig (hash)
-        for (int n = 0; n < nStored; n++) {
-            boolean match = false;
-            final byte[] storedHash = storedSigHashes.get(n);
-            for (int i = 0; i < nDevice; i++) {
-                if (Arrays.equals(storedHash, deviceHashes.get(i))) {
-                    match = true;
-                    break;
-                }
-            }
-            // match is false when no on-device sig matched one of the stored ones
-            if (!match) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
     public boolean canRestoreTo(PackageInfo target) {
         if (target.versionCode < mVersionCode) {
             Slog.w(TAG, String.format("Package current version %d < backed up version %d",
                     target.versionCode, mVersionCode));
             return false;
         }
-        if (!signaturesMatch(mSigHashes, target)) {
+        if (!BackupUtils.signaturesMatch(mSigHashes, target)) {
             Slog.w(TAG, "Package signature mismtach");
             return false;
         }
@@ -194,37 +93,34 @@
     }
 
     public static ShortcutPackageInfo generateForInstalledPackage(
-            ShortcutService s, String packageName, @UserIdInt int userId) {
-        final PackageInfo pi = s.getPackageInfoWithSignatures(packageName, userId);
+            ShortcutService s, String packageName, @UserIdInt int packageUserId) {
+        final PackageInfo pi = s.getPackageInfoWithSignatures(packageName, packageUserId);
         if (pi.signatures == null || pi.signatures.length == 0) {
             Slog.e(TAG, "Can't get signatures: package=" + packageName);
             return null;
         }
-        final ShortcutPackageInfo ret = new ShortcutPackageInfo(packageName, userId, pi.versionCode,
-                hashSignatureArray(pi.signatures), /* shadow=*/ false);
+        final ShortcutPackageInfo ret = new ShortcutPackageInfo(pi.versionCode,
+                BackupUtils.hashSignatureArray(pi.signatures), /* shadow=*/ false);
 
         return ret;
     }
 
-    public void refreshAndSave(ShortcutService s, @UserIdInt int userId) {
-        final PackageInfo pi = s.getPackageInfoWithSignatures(mPackageName, userId);
+    public void refresh(ShortcutService s, ShortcutPackageItem pkg) {
+        // Note use mUserId here, rather than userId.
+        final PackageInfo pi = s.getPackageInfoWithSignatures(
+                pkg.getPackageName(), pkg.getPackageUserId());
         if (pi == null) {
-            Slog.w(TAG, "Package not found: " + mPackageName);
+            Slog.w(TAG, "Package not found: " + pkg.getPackageName());
             return;
         }
         mVersionCode = pi.versionCode;
-        mSigHashes = hashSignatureArray(pi.signatures);
-
-        s.scheduleSaveUser(userId);
+        mSigHashes = BackupUtils.hashSignatureArray(pi.signatures);
     }
 
-    public void saveToXml(XmlSerializer out, boolean forBackup)
-            throws IOException, XmlPullParserException {
+    public void saveToXml(XmlSerializer out) throws IOException {
 
         out.startTag(null, TAG_ROOT);
 
-        ShortcutService.writeAttr(out, ATTR_NAME, mPackageName);
-        ShortcutService.writeAttr(out, ATTR_USER_ID, mUserId);
         ShortcutService.writeAttr(out, ATTR_VERSION, mVersionCode);
         ShortcutService.writeAttr(out, ATTR_SHADOW, mIsShadow);
 
@@ -236,11 +132,9 @@
         out.endTag(null, TAG_ROOT);
     }
 
-    public static ShortcutPackageInfo loadFromXml(XmlPullParser parser, int ownerUserId)
+    public static ShortcutPackageInfo loadFromXml(XmlPullParser parser)
             throws IOException, XmlPullParserException {
 
-        final String packageName = ShortcutService.parseStringAttribute(parser, ATTR_NAME);
-        final int userId = ShortcutService.parseIntAttribute(parser, ATTR_USER_ID, ownerUserId);
         final int versionCode = ShortcutService.parseIntAttribute(parser, ATTR_VERSION);
         final boolean shadow = ShortcutService.parseBooleanAttribute(parser, ATTR_SHADOW);
 
@@ -256,31 +150,27 @@
             }
             final int depth = parser.getDepth();
             final String tag = parser.getName();
-            switch (tag) {
-                case TAG_SIGNATURE: {
-                    final String hash = ShortcutService.parseStringAttribute(
-                            parser, ATTR_SIGNATURE_HASH);
-                    hashes.add(Base64.decode(hash.getBytes()));
-                    continue;
+
+            if (depth == outerDepth + 1) {
+                switch (tag) {
+                    case TAG_SIGNATURE: {
+                        final String hash = ShortcutService.parseStringAttribute(
+                                parser, ATTR_SIGNATURE_HASH);
+                        hashes.add(Base64.decode(hash.getBytes()));
+                        continue;
+                    }
                 }
             }
-            throw ShortcutService.throwForInvalidTag(depth, tag);
+            ShortcutService.warnForInvalidTag(depth, tag);
         }
-        return new ShortcutPackageInfo(packageName, userId, versionCode, hashes, shadow);
+        return new ShortcutPackageInfo(versionCode, hashes, shadow);
     }
 
     public void dump(ShortcutService s, PrintWriter pw, String prefix) {
         pw.println();
 
         pw.print(prefix);
-        pw.print("PackageInfo: ");
-        pw.print(mPackageName);
-        pw.println();
-
-        pw.print(prefix);
-        pw.print("  User: ");
-        pw.print(mUserId);
-        pw.println();
+        pw.println("PackageInfo:");
 
         pw.print(prefix);
         pw.print("  IsShadow: ");
diff --git a/services/core/java/com/android/server/pm/ShortcutPackageItem.java b/services/core/java/com/android/server/pm/ShortcutPackageItem.java
index 526c84d..de2709d 100644
--- a/services/core/java/com/android/server/pm/ShortcutPackageItem.java
+++ b/services/core/java/com/android/server/pm/ShortcutPackageItem.java
@@ -17,15 +17,69 @@
 
 import android.annotation.NonNull;
 
+import com.android.internal.util.Preconditions;
+
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
 
 import java.io.IOException;
 
-public interface ShortcutPackageItem {
-    @NonNull
-    String getPackageName();
+abstract class ShortcutPackageItem {
+    private final int mPackageUserId;
+    private final String mPackageName;
 
-    void saveToXml(@NonNull XmlSerializer out, boolean forBackup)
+    private ShortcutPackageInfo mPackageInfo;
+
+    protected ShortcutPackageItem(int packageUserId, @NonNull String packageName,
+            @NonNull ShortcutPackageInfo packageInfo) {
+        mPackageUserId = packageUserId;
+        mPackageName = Preconditions.checkStringNotEmpty(packageName);
+        mPackageInfo = Preconditions.checkNotNull(packageInfo);
+    }
+
+    /**
+     * ID of the user who actually has this package running on.  For {@link ShortcutPackage},
+     * this is the same thing as {@link #getOwnerUserId}, but if it's a {@link ShortcutLauncher} and
+     * {@link #getOwnerUserId} is of a work profile, then this ID could be the user who owns the
+     * profile.
+     */
+    public int getPackageUserId() {
+        return mPackageUserId;
+    }
+
+    /**
+     * ID of the user who sees the shortcuts from this instance.
+     */
+    public abstract int getOwnerUserId();
+
+    @NonNull
+    public String getPackageName() {
+        return mPackageName;
+    }
+
+    public ShortcutPackageInfo getPackageInfo() {
+        return mPackageInfo;
+    }
+
+    /**
+     * Should be only used when loading from a file.o
+     */
+    protected void replacePackageInfo(@NonNull ShortcutPackageInfo packageInfo) {
+        mPackageInfo = Preconditions.checkNotNull(packageInfo);
+    }
+
+    public void refreshPackageInfoAndSave(ShortcutService s) {
+        mPackageInfo.refresh(s, this);
+        s.scheduleSaveUser(getOwnerUserId());
+    }
+
+    public void ensureNotShadowAndSave(ShortcutService s) {
+        if (mPackageInfo.isShadow()) {
+            mPackageInfo.setShadow(false);
+            s.scheduleSaveUser(getOwnerUserId());
+        }
+    }
+
+    public abstract void saveToXml(@NonNull XmlSerializer out, boolean forBackup)
             throws IOException, XmlPullParserException;
 }
diff --git a/services/core/java/com/android/server/pm/ShortcutService.java b/services/core/java/com/android/server/pm/ShortcutService.java
index cf11025..76a2dfa 100644
--- a/services/core/java/com/android/server/pm/ShortcutService.java
+++ b/services/core/java/com/android/server/pm/ShortcutService.java
@@ -72,7 +72,6 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.content.PackageMonitor;
 import com.android.internal.os.BackgroundThread;
-import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.FastXmlSerializer;
 import com.android.internal.util.Preconditions;
 import com.android.server.LocalServices;
@@ -85,6 +84,10 @@
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
 
+import java.io.BufferedInputStream;
+import java.io.BufferedOutputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileDescriptor;
 import java.io.FileInputStream;
@@ -92,6 +95,7 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.OutputStream;
 import java.io.PrintWriter;
 import java.net.URISyntaxException;
 import java.nio.charset.StandardCharsets;
@@ -104,8 +108,6 @@
  *
  * - Default launcher check does take a few ms.  Worth caching.
  *
- * - Don't backup launcher from different profile.
- *
  * - Clear data -> remove all dynamic?  but not the pinned?
  *
  * - Scan and remove orphan bitmaps (just in case).
@@ -633,31 +635,45 @@
         }
         path.mkdirs();
         final AtomicFile file = new AtomicFile(path);
-        FileOutputStream outs = null;
+        FileOutputStream os = null;
         try {
-            outs = file.startWrite();
+            os = file.startWrite();
 
-            // Write to XML
-            XmlSerializer out = new FastXmlSerializer();
-            out.setOutput(outs, StandardCharsets.UTF_8.name());
-            out.startDocument(null, true);
+            saveUserInternalLocked(userId, os, /* forBackup= */ false);
 
-            getUserShortcutsLocked(userId).saveToXml(this, out, /* forBackup= */ false);
-
-            out.endDocument();
-
-            // Close.
-            file.finishWrite(outs);
-        } catch (IOException|XmlPullParserException e) {
+            file.finishWrite(os);
+        } catch (XmlPullParserException|IOException e) {
             Slog.e(TAG, "Failed to write to file " + file.getBaseFile(), e);
-            file.failWrite(outs);
+            file.failWrite(os);
         }
     }
 
+    private void saveUserInternalLocked(@UserIdInt int userId, OutputStream os,
+            boolean forBackup) throws IOException, XmlPullParserException {
+
+        final BufferedOutputStream bos = new BufferedOutputStream(os);
+
+        // Write to XML
+        XmlSerializer out = new FastXmlSerializer();
+        out.setOutput(bos, StandardCharsets.UTF_8.name());
+        out.startDocument(null, true);
+
+        getUserShortcutsLocked(userId).saveToXml(this, out, forBackup);
+
+        out.endDocument();
+
+        bos.flush();
+        os.flush();
+    }
+
     static IOException throwForInvalidTag(int depth, String tag) throws IOException {
         throw new IOException(String.format("Invalid tag '%s' found at depth %d", tag, depth));
     }
 
+    static void warnForInvalidTag(int depth, String tag) throws IOException {
+        Slog.w(TAG, String.format("Invalid tag '%s' found at depth %d", tag, depth));
+    }
+
     @Nullable
     private ShortcutUser loadUserLocked(@UserIdInt int userId) {
         final File path = new File(injectUserDataPath(userId), FILENAME_USER_PACKAGES);
@@ -675,30 +691,8 @@
             }
             return null;
         }
-        ShortcutUser ret = null;
         try {
-            XmlPullParser parser = Xml.newPullParser();
-            parser.setInput(in, StandardCharsets.UTF_8.name());
-
-            int type;
-            while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) {
-                if (type != XmlPullParser.START_TAG) {
-                    continue;
-                }
-                final int depth = parser.getDepth();
-
-                final String tag = parser.getName();
-                if (DEBUG_LOAD) {
-                    Slog.d(TAG, String.format("depth=%d type=%d name=%s",
-                            depth, type, tag));
-                }
-                if ((depth == 1) && ShortcutUser.TAG_ROOT.equals(tag)) {
-                    ret = ShortcutUser.loadFromXml(parser, userId);
-                    continue;
-                }
-                throwForInvalidTag(depth, tag);
-            }
-            return ret;
+            return loadUserInternal(userId, in, /* forBackup= */ false);
         } catch (IOException|XmlPullParserException e) {
             Slog.e(TAG, "Failed to read file " + file.getBaseFile(), e);
             return null;
@@ -707,6 +701,36 @@
         }
     }
 
+    private ShortcutUser loadUserInternal(@UserIdInt int userId, InputStream is,
+            boolean fromBackup) throws XmlPullParserException, IOException {
+
+        final BufferedInputStream bis = new BufferedInputStream(is);
+
+        ShortcutUser ret = null;
+        XmlPullParser parser = Xml.newPullParser();
+        parser.setInput(bis, StandardCharsets.UTF_8.name());
+
+        int type;
+        while ((type = parser.next()) != XmlPullParser.END_DOCUMENT) {
+            if (type != XmlPullParser.START_TAG) {
+                continue;
+            }
+            final int depth = parser.getDepth();
+
+            final String tag = parser.getName();
+            if (DEBUG_LOAD) {
+                Slog.d(TAG, String.format("depth=%d type=%d name=%s",
+                        depth, type, tag));
+            }
+            if ((depth == 1) && ShortcutUser.TAG_ROOT.equals(tag)) {
+                ret = ShortcutUser.loadFromXml(this, parser, userId, fromBackup);
+                continue;
+            }
+            throwForInvalidTag(depth, tag);
+        }
+        return ret;
+    }
+
     private void scheduleSaveBaseState() {
         scheduleSaveInner(UserHandle.USER_NULL); // Special case -- use USER_NULL for base state.
     }
@@ -1042,6 +1066,10 @@
         Preconditions.checkState(isCallerShell(), "Caller must be shell");
     }
 
+    private void enforceSystem() {
+        Preconditions.checkState(isCallerSystem(), "Caller must be system");
+    }
+
     private void verifyCaller(@NonNull String packageName, @UserIdInt int userId) {
         Preconditions.checkStringNotEmpty(packageName, "packageName");
 
@@ -1182,10 +1210,10 @@
         final int size = newShortcuts.size();
 
         synchronized (mLock) {
-            getUserShortcutsLocked(userId).ensurePackageInfo(this, packageName, userId);
-
             final ShortcutPackage ps = getPackageShortcutsLocked(packageName, userId);
 
+            ps.ensureNotShadowAndSave(this);
+
             // Throttling.
             if (!ps.tryApiCall(this)) {
                 return false;
@@ -1219,10 +1247,10 @@
         final int size = newShortcuts.size();
 
         synchronized (mLock) {
-            getUserShortcutsLocked(userId).ensurePackageInfo(this, packageName, userId);
-
             final ShortcutPackage ps = getPackageShortcutsLocked(packageName, userId);
 
+            ps.ensureNotShadowAndSave(this);
+
             // Throttling.
             if (!ps.tryApiCall(this)) {
                 return false;
@@ -1258,10 +1286,10 @@
         verifyCaller(packageName, userId);
 
         synchronized (mLock) {
-            getUserShortcutsLocked(userId).ensurePackageInfo(this, packageName, userId);
-
             final ShortcutPackage ps = getPackageShortcutsLocked(packageName, userId);
 
+            ps.ensureNotShadowAndSave(this);
+
             // Throttling.
             if (!ps.tryApiCall(this)) {
                 return false;
@@ -1466,6 +1494,9 @@
 
     @VisibleForTesting
     void cleanUpPackageLocked(String packageName, int owningUserId, int packageUserId) {
+
+        // TODO Don't remove shadow packages' information.
+
         final boolean wasUserLoaded = isUserLoadedLocked(owningUserId);
 
         final ShortcutUser mUser = getUserShortcutsLocked(owningUserId);
@@ -1492,9 +1523,6 @@
             mUser.getPackages().valueAt(i).refreshPinnedFlags(this);
         }
 
-        // Remove the package info too.
-        mUser.removePackageInfo(packageUserId, packageName);
-
         scheduleSaveUser(owningUserId);
 
         if (doNotify) {
@@ -1617,11 +1645,13 @@
             Preconditions.checkNotNull(shortcutIds, "shortcutIds");
 
             synchronized (mLock) {
-                getUserShortcutsLocked(userId).ensurePackageInfo(
-                        ShortcutService.this, callingPackage, launcherUserId);
+                final ShortcutLauncher launcher =
+                        getLauncherShortcuts(callingPackage, userId, launcherUserId);
 
-                getLauncherShortcuts(callingPackage, userId, launcherUserId).pinShortcuts(
-                        ShortcutService.this, packageName, shortcutIds);
+                launcher.ensureNotShadowAndSave(ShortcutService.this);
+
+                launcher.pinShortcuts(
+                        ShortcutService.this, userId, packageName, shortcutIds);
             }
             userPackageChanged(packageName, userId);
         }
@@ -1731,23 +1761,21 @@
         if (DEBUG) {
             Slog.d(TAG, "cleanupGonePackages() userId=" + userId);
         }
-        ArrayList<PackageWithUser> gonePackages = null;
+        final ArrayList<PackageWithUser> gonePackages = new ArrayList<>();
 
         synchronized (mLock) {
             final ShortcutUser user = getUserShortcutsLocked(userId);
-            final ArrayMap<PackageWithUser, ShortcutPackageInfo> infos = user.getAllPackageInfos();
-            for (int i = infos.size() -1; i >= 0; i--) {
-                final ShortcutPackageInfo info = infos.valueAt(i);
-                if (info.isShadow()) {
-                    continue;
+
+            user.forAllPackageItems(spi -> {
+                if (spi.getPackageInfo().isShadow()) {
+                    return; // Don't delete shadow information.
                 }
-                if (isPackageInstalled(info.getPackageName(), info.getUserId())) {
-                    continue;
+                if (isPackageInstalled(spi.getPackageName(), spi.getPackageUserId())) {
+                    return;
                 }
-                gonePackages = ArrayUtils.add(gonePackages,
-                        PackageWithUser.of(info.getUserId(), info.getPackageName()));
-            }
-            if (gonePackages != null) {
+                gonePackages.add(PackageWithUser.of(spi));
+            });
+            if (gonePackages.size() > 0) {
                 for (int i = gonePackages.size() - 1; i >= 0; i--) {
                     final PackageWithUser pu = gonePackages.get(i);
                     cleanUpPackageLocked(pu.packageName, userId, pu.userId);
@@ -1761,25 +1789,18 @@
             Slog.d(TAG, String.format("handlePackageAdded: %s user=%d", packageName, userId));
         }
         synchronized (mLock) {
-            final ShortcutPackageInfo existing = getUserShortcutsLocked(userId)
-                    .getPackageInfo(userId, packageName);
-
-            if (existing != null && existing.isShadow()) {
-                Slog.w(TAG, "handlePackageAdded: TODO Restore not implemented");
-            }
+            getUserShortcutsLocked(userId).unshadowPackage(this, packageName, userId);
         }
     }
 
     private void handlePackageUpdateFinished(String packageName, @UserIdInt int userId) {
         if (DEBUG) {
-            Slog.d(TAG, String.format("handlePackageUpdateFinished: %s user=%d", packageName, userId));
+            Slog.d(TAG, String.format("handlePackageUpdateFinished: %s user=%d",
+                    packageName, userId));
         }
+
         synchronized (mLock) {
-            final ShortcutPackageInfo spi =
-                    getUserShortcutsLocked(userId).getPackageInfo(userId, packageName);
-            if (spi != null) {
-                spi.refreshAndSave(this, userId);
-            }
+            getUserShortcutsLocked(userId).unshadowPackage(this, packageName, userId);
         }
     }
 
@@ -1792,13 +1813,14 @@
         }
     }
 
-    // === Backup & restore ===
+    // === PackageManager interaction ===
 
     PackageInfo getPackageInfoWithSignatures(String packageName, @UserIdInt int userId) {
         return injectPackageInfo(packageName, userId, true);
     }
 
     int injectGetPackageUid(@NonNull String packageName, @UserIdInt int userId) {
+        final long token = injectClearCallingIdentity();
         try {
             return mIPackageManager.getPackageUid(packageName, PACKAGE_MATCH_FLAGS
                     , userId);
@@ -1806,12 +1828,15 @@
             // Shouldn't happen.
             Slog.wtf(TAG, "RemoteException", e);
             return -1;
+        } finally {
+            injectRestoreCallingIdentity(token);
         }
     }
 
     @VisibleForTesting
     PackageInfo injectPackageInfo(String packageName, @UserIdInt int userId,
             boolean getSignatures) {
+        final long token = injectClearCallingIdentity();
         try {
             return mIPackageManager.getPackageInfo(packageName, PACKAGE_MATCH_FLAGS
                     | (getSignatures ? PackageManager.GET_SIGNATURES : 0)
@@ -1820,17 +1845,22 @@
             // Shouldn't happen.
             Slog.wtf(TAG, "RemoteException", e);
             return null;
+        } finally {
+            injectRestoreCallingIdentity(token);
         }
     }
 
     @VisibleForTesting
     ApplicationInfo injectApplicationInfo(String packageName, @UserIdInt int userId) {
+        final long token = injectClearCallingIdentity();
         try {
             return mIPackageManager.getApplicationInfo(packageName, PACKAGE_MATCH_FLAGS, userId);
         } catch (RemoteException e) {
             // Shouldn't happen.
             Slog.wtf(TAG, "RemoteException", e);
             return null;
+        } finally {
+            injectRestoreCallingIdentity(token);
         }
     }
 
@@ -1839,12 +1869,61 @@
         return (ai != null) && ((ai.flags & flags) == flags);
     }
 
+    private boolean isPackageInstalled(String packageName, int userId) {
+        return isApplicationFlagSet(packageName, userId, ApplicationInfo.FLAG_INSTALLED);
+    }
+
+    // === Backup & restore ===
+
     boolean shouldBackupApp(String packageName, int userId) {
         return isApplicationFlagSet(packageName, userId, ApplicationInfo.FLAG_ALLOW_BACKUP);
     }
 
-    private boolean isPackageInstalled(String packageName, int userId) {
-        return isApplicationFlagSet(packageName, userId, ApplicationInfo.FLAG_INSTALLED);
+    @Override
+    public byte[] getBackupPayload(@UserIdInt int userId) throws RemoteException {
+        enforceSystem();
+        if (DEBUG) {
+            Slog.d(TAG, "Backing up user " + userId);
+        }
+        synchronized (mLock) {
+            final ShortcutUser user = getUserShortcutsLocked(userId);
+            if (user == null) {
+                Slog.w(TAG, "Can't backup: user not found: id=" + userId);
+                return null;
+            }
+
+            user.forAllPackageItems(spi -> spi.refreshPackageInfoAndSave(this));
+
+            // Then save.
+            final ByteArrayOutputStream os = new ByteArrayOutputStream(32 * 1024);
+            try {
+                saveUserInternalLocked(userId, os, /* forBackup */ true);
+            } catch (XmlPullParserException|IOException e) {
+                // Shouldn't happen.
+                Slog.w(TAG, "Backup failed.", e);
+                return null;
+            }
+            return os.toByteArray();
+        }
+    }
+
+    @Override
+    public void applyRestore(byte[] payload, @UserIdInt int userId) throws RemoteException {
+        enforceSystem();
+        if (DEBUG) {
+            Slog.d(TAG, "Restoring user " + userId);
+        }
+        final ShortcutUser user;
+        final ByteArrayInputStream is = new ByteArrayInputStream(payload);
+        try {
+            user = loadUserInternal(userId, is, /* fromBackup */ true);
+        } catch (XmlPullParserException|IOException e) {
+            Slog.w(TAG, "Restoration failed.", e);
+            return;
+        }
+        synchronized (mLock) {
+            mUsers.put(userId, user);
+        }
     }
 
     // === Dump ===
@@ -2202,19 +2281,4 @@
             return pkg.findShortcutById(shortcutId);
         }
     }
-
-    @VisibleForTesting
-    ShortcutPackageInfo getPackageInfoForTest(String packageName, int userId) {
-        return getPackageInfoForTest(packageName, userId, userId);
-    }
-
-    @VisibleForTesting
-    ShortcutPackageInfo getPackageInfoForTest(String packageName, int userId, int packageUserId) {
-        synchronized (mLock) {
-            final ShortcutUser user = mUsers.get(userId);
-            if (user == null) return null;
-
-            return user.getPackageInfo(packageUserId, packageName);
-        }
-    }
 }
diff --git a/services/core/java/com/android/server/pm/ShortcutUser.java b/services/core/java/com/android/server/pm/ShortcutUser.java
index 19feb2a..487558f 100644
--- a/services/core/java/com/android/server/pm/ShortcutUser.java
+++ b/services/core/java/com/android/server/pm/ShortcutUser.java
@@ -31,6 +31,7 @@
 
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.util.function.Consumer;
 
 /**
  * User information used by {@link ShortcutService}.
@@ -56,6 +57,10 @@
             return new PackageWithUser(launcherUserId, packageName);
         }
 
+        public static PackageWithUser of(ShortcutPackageItem spi) {
+            return new PackageWithUser(spi.getPackageUserId(), spi.getPackageName());
+        }
+
         @Override
         public int hashCode() {
             return packageName.hashCode() ^ userId;
@@ -84,8 +89,6 @@
 
     private final ArrayMap<PackageWithUser, ShortcutLauncher> mLaunchers = new ArrayMap<>();
 
-    private final ArrayMap<PackageWithUser, ShortcutPackageInfo> mPackageInfos = new ArrayMap<>();
-
     private ComponentName mLauncherComponent;
 
     public ShortcutUser(int userId) {
@@ -100,35 +103,14 @@
         return mLaunchers;
     }
 
-    public ShortcutLauncher getLauncher(@UserIdInt int userId, @NonNull String packageName) {
-        return mLaunchers.get(PackageWithUser.of(userId, packageName));
-    }
-
     public void addLauncher(ShortcutLauncher launcher) {
-        mLaunchers.put(PackageWithUser.of(launcher.getUserId(), launcher.getPackageName()),
-                launcher);
+        mLaunchers.put(PackageWithUser.of(launcher.getPackageUserId(),
+                launcher.getPackageName()), launcher);
     }
 
     public ShortcutLauncher removeLauncher(
-            @UserIdInt int userId, @NonNull String packageName) {
-        return mLaunchers.remove(PackageWithUser.of(userId, packageName));
-    }
-
-    public ArrayMap<PackageWithUser, ShortcutPackageInfo> getAllPackageInfos() {
-        return mPackageInfos;
-    }
-
-    public ShortcutPackageInfo getPackageInfo(@UserIdInt int userId, @NonNull String packageName) {
-        return mPackageInfos.get(PackageWithUser.of(userId, packageName));
-    }
-
-    public void addPackageInfo(ShortcutPackageInfo spi) {
-        mPackageInfos.put(PackageWithUser.of(spi.getUserId(), spi.getPackageName()), spi);
-    }
-
-    public ShortcutPackageInfo removePackageInfo(
-            @UserIdInt int userId, @NonNull String packageName) {
-        return mPackageInfos.remove(PackageWithUser.of(userId, packageName));
+            @UserIdInt int packageUserId, @NonNull String packageName) {
+        return mLaunchers.remove(PackageWithUser.of(packageUserId, packageName));
     }
 
     public ShortcutPackage getPackageShortcuts(@NonNull String packageName) {
@@ -151,20 +133,37 @@
         return ret;
     }
 
-    public void ensurePackageInfo(ShortcutService s, String packageName, @UserIdInt int userId) {
-        final PackageWithUser key = PackageWithUser.of(userId, packageName);
-        final ShortcutPackageInfo existing = mPackageInfos.get(key);
+    public void forAllPackageItems(Consumer<ShortcutPackageItem> callback) {
+        {
+            final int size = mLaunchers.size();
+            for (int i = 0; i < size; i++) {
+                callback.accept(mLaunchers.valueAt(i));
+            }
+        }
+        {
+            final int size = mPackages.size();
+            for (int i = 0; i < size; i++) {
+                callback.accept(mPackages.valueAt(i));
+            }
+        }
+    }
 
-        if (existing != null) {
-            return;
-        }
-        if (ShortcutService.DEBUG) {
-            Slog.d(TAG, String.format("Fetching package info: %s user=%d", packageName, userId));
-        }
-        final ShortcutPackageInfo newSpi = ShortcutPackageInfo.generateForInstalledPackage(
-                s, packageName, userId);
-        mPackageInfos.put(key, newSpi);
-        s.scheduleSaveUser(mUserId);
+    public void unshadowPackage(ShortcutService s, @NonNull String packageName,
+            @UserIdInt int packageUserId) {
+        forPackageItem(packageName, packageUserId, spi -> {
+            Slog.i(TAG, String.format("Restoring for %s, user=%d", packageName, packageUserId));
+            spi.ensureNotShadowAndSave(s);
+        });
+    }
+
+    public void forPackageItem(@NonNull String packageName, @UserIdInt int packageUserId,
+            Consumer<ShortcutPackageItem> callback) {
+        forAllPackageItems(spi -> {
+            if ((spi.getPackageUserId() == packageUserId)
+                    && spi.getPackageName().equals(packageName)) {
+                callback.accept(spi);
+            }
+        });
     }
 
     public void saveToXml(ShortcutService s, XmlSerializer out, boolean forBackup)
@@ -174,12 +173,7 @@
         ShortcutService.writeTagValue(out, TAG_LAUNCHER,
                 mLauncherComponent);
 
-        {
-            final int size = mPackageInfos.size();
-            for (int i = 0; i < size; i++) {
-                saveShortcutPackageItem(s, out, mPackageInfos.valueAt(i), forBackup);
-            }
-        }
+        // Can't use forEachPackageItem due to the checked exceptions.
         {
             final int size = mLaunchers.size();
             for (int i = 0; i < size; i++) {
@@ -198,14 +192,19 @@
 
     private void saveShortcutPackageItem(ShortcutService s, XmlSerializer out,
             ShortcutPackageItem spi, boolean forBackup) throws IOException, XmlPullParserException {
-        if (forBackup && !s.shouldBackupApp(spi.getPackageName(), mUserId)) {
-            return; // Don't save.
+        if (forBackup) {
+            if (!s.shouldBackupApp(spi.getPackageName(), spi.getPackageUserId())) {
+                return; // Don't save.
+            }
+            if (spi.getPackageUserId() != spi.getOwnerUserId()) {
+                return; // Don't save cross-user information.
+            }
         }
         spi.saveToXml(out, forBackup);
     }
 
-    public static ShortcutUser loadFromXml(XmlPullParser parser, int userId)
-            throws IOException, XmlPullParserException {
+    public static ShortcutUser loadFromXml(ShortcutService s, XmlPullParser parser, int userId,
+            boolean fromBackup) throws IOException, XmlPullParserException {
         final ShortcutUser ret = new ShortcutUser(userId);
 
         final int outerDepth = parser.getDepth();
@@ -217,31 +216,30 @@
             }
             final int depth = parser.getDepth();
             final String tag = parser.getName();
-            switch (tag) {
-                case TAG_LAUNCHER: {
-                    ret.mLauncherComponent = ShortcutService.parseComponentNameAttribute(
-                            parser, ATTR_VALUE);
-                    continue;
-                }
-                case ShortcutPackage.TAG_ROOT: {
-                    final ShortcutPackage shortcuts = ShortcutPackage.loadFromXml(parser, userId);
 
-                    // Don't use addShortcut(), we don't need to save the icon.
-                    ret.getPackages().put(shortcuts.getPackageName(), shortcuts);
-                    continue;
-                }
+            if (depth == outerDepth + 1) {
+                switch (tag) {
+                    case TAG_LAUNCHER: {
+                        ret.mLauncherComponent = ShortcutService.parseComponentNameAttribute(
+                                parser, ATTR_VALUE);
+                        continue;
+                    }
+                    case ShortcutPackage.TAG_ROOT: {
+                        final ShortcutPackage shortcuts = ShortcutPackage.loadFromXml(
+                                s, parser, userId, fromBackup);
 
-                case ShortcutLauncher.TAG_ROOT: {
-                    ret.addLauncher(ShortcutLauncher.loadFromXml(parser, userId));
-                    continue;
-                }
+                        // Don't use addShortcut(), we don't need to save the icon.
+                        ret.getPackages().put(shortcuts.getPackageName(), shortcuts);
+                        continue;
+                    }
 
-                case ShortcutPackageInfo.TAG_ROOT: {
-                    ret.addPackageInfo(ShortcutPackageInfo.loadFromXml(parser, userId));
-                    continue;
+                    case ShortcutLauncher.TAG_ROOT: {
+                        ret.addLauncher(ShortcutLauncher.loadFromXml(parser, userId, fromBackup));
+                        continue;
+                    }
                 }
             }
-            throw ShortcutService.throwForInvalidTag(depth, tag);
+            ShortcutService.warnForInvalidTag(depth, tag);
         }
         return ret;
     }
@@ -283,9 +281,5 @@
         for (int i = 0; i < mPackages.size(); i++) {
             mPackages.valueAt(i).dump(s, pw, prefix + "  ");
         }
-
-        for (int i = 0; i < mPackageInfos.size(); i++) {
-            mPackageInfos.valueAt(i).dump(s, pw, prefix + "  ");
-        }
     }
 }
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 6df36e4..7f0da1e 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -31,7 +31,6 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.UserInfo;
@@ -924,12 +923,12 @@
         }
         // Don't call them within the mRestrictionsLock.
         synchronized (mPackagesLock) {
-            if (globalChanged) {
-                writeUserListLP();
-            }
             if (localChanged) {
                 writeUserLP(getUserDataNoChecks(userId));
             }
+            if (globalChanged) {
+                writeUserListLP();
+            }
         }
 
         synchronized (mRestrictionsLock) {
@@ -1491,8 +1490,8 @@
         updateUserIds();
         initDefaultGuestRestrictions();
 
-        writeUserListLP();
         writeUserLP(userData);
+        writeUserListLP();
     }
 
     private String getOwnerName() {
@@ -1542,8 +1541,10 @@
             serializer.attribute(null, ATTR_CREATION_TIME, Long.toString(userInfo.creationTime));
             serializer.attribute(null, ATTR_LAST_LOGGED_IN_TIME,
                     Long.toString(userInfo.lastLoggedInTime));
-            serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT,
-                    userInfo.lastLoggedInFingerprint);
+            if (userInfo.lastLoggedInFingerprint != null) {
+                serializer.attribute(null, ATTR_LAST_LOGGED_IN_FINGERPRINT,
+                        userInfo.lastLoggedInFingerprint);
+            }
             if (userInfo.iconPath != null) {
                 serializer.attribute(null,  ATTR_ICON_PATH, userInfo.iconPath);
             }
@@ -1599,7 +1600,7 @@
             serializer.endDocument();
             userFile.finishWrite(fos);
         } catch (Exception ioe) {
-            Slog.e(LOG_TAG, "Error writing user info " + userData.info.id + "\n" + ioe);
+            Slog.e(LOG_TAG, "Error writing user info " + userData.info.id, ioe);
             userFile.failWrite(fos);
         }
     }
@@ -1944,6 +1945,7 @@
                     userData.info = userInfo;
                     mUsers.put(userId, userData);
                 }
+                writeUserLP(userData);
                 writeUserListLP();
                 if (parent != null) {
                     if (isManagedProfile) {
@@ -2217,13 +2219,13 @@
             mCachedEffectiveUserRestrictions.remove(userHandle);
             mDevicePolicyLocalUserRestrictions.remove(userHandle);
         }
-        // Remove user file
-        AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX));
-        userFile.delete();
         // Update the user list
         synchronized (mPackagesLock) {
             writeUserListLP();
         }
+        // Remove user file
+        AtomicFile userFile = new AtomicFile(new File(mUsersDir, userHandle + XML_SUFFIX));
+        userFile.delete();
         updateUserIds();
         File userDir = Environment.getUserSystemDirectory(userHandle);
         File renamedUserDir = Environment.getUserSystemDirectory(UserHandle.USER_NULL - userHandle);
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 574faa0..747e31e 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -18,7 +18,6 @@
 
 import static android.app.ActivityManager.StackId.DOCKED_STACK_ID;
 import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
-import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
 import static android.app.ActivityManager.StackId.HOME_STACK_ID;
 import static android.content.pm.PackageManager.FEATURE_PICTURE_IN_PICTURE;
 import static android.content.pm.PackageManager.FEATURE_TELEVISION;
@@ -38,7 +37,6 @@
 import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_CLOSED;
 import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_OPEN;
 
-import android.Manifest;
 import android.app.ActivityManager;
 import android.app.ActivityManager.StackId;
 import android.app.ActivityManagerInternal;
@@ -4647,7 +4645,7 @@
         // TYPE_SYSTEM_ERROR is above the NavigationBar so it can't be allowed to extend over it.
         // Also, we don't allow windows in multi-window mode to extend out of the screen.
         if ((fl & FLAG_LAYOUT_NO_LIMITS) != 0 && attrs.type != TYPE_SYSTEM_ERROR
-                && !win.inMultiWindowMode()) {
+                && !win.isInMultiWindowMode()) {
             df.left = df.top = -10000;
             df.right = df.bottom = 10000;
             if (attrs.type != TYPE_WALLPAPER) {
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index 4a00ebd..dbbaa5e 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -319,7 +319,7 @@
      */
     @Override
     public void disable2(int what, IBinder token, String pkg) {
-        disableForUser(what, token, pkg, mCurrentUserId);
+        disable2ForUser(what, token, pkg, mCurrentUserId);
     }
 
     /**
diff --git a/services/core/java/com/android/server/wm/AccessibilityController.java b/services/core/java/com/android/server/wm/AccessibilityController.java
index 98d44ac..b501398 100644
--- a/services/core/java/com/android/server/wm/AccessibilityController.java
+++ b/services/core/java/com/android/server/wm/AccessibilityController.java
@@ -509,34 +509,35 @@
                         continue;
                     }
 
-                    Region windowBounds = mTempRegion2;
+                    // Consider the touchable portion of the window
                     Matrix matrix = mTempMatrix;
                     populateTransformationMatrixLocked(windowState, matrix);
+                    Region touchableRegion = mTempRegion3;
+                    windowState.getTouchableRegion(touchableRegion);
+                    Rect touchableFrame = mTempRect1;
+                    touchableRegion.getBounds(touchableFrame);
                     RectF windowFrame = mTempRectF;
+                    windowFrame.set(touchableFrame);
+                    windowFrame.offset(-windowState.mFrame.left, -windowState.mFrame.top);
+                    matrix.mapRect(windowFrame);
+                    Region windowBounds = mTempRegion2;
+                    windowBounds.set((int) windowFrame.left, (int) windowFrame.top,
+                            (int) windowFrame.right, (int) windowFrame.bottom);
+                    // Only update new regions
+                    Region portionOfWindowAlreadyAccountedFor = mTempRegion3;
+                    portionOfWindowAlreadyAccountedFor.set(mMagnifiedBounds);
+                    portionOfWindowAlreadyAccountedFor.op(nonMagnifiedBounds, Region.Op.UNION);
+                    windowBounds.op(portionOfWindowAlreadyAccountedFor, Region.Op.DIFFERENCE);
 
                     if (mWindowManagerService.mPolicy.canMagnifyWindow(windowState.mAttrs.type)) {
-                        windowFrame.set(windowState.mFrame);
-                        windowFrame.offset(-windowFrame.left, -windowFrame.top);
-                        matrix.mapRect(windowFrame);
-                        windowBounds.set((int) windowFrame.left, (int) windowFrame.top,
-                                (int) windowFrame.right, (int) windowFrame.bottom);
                         mMagnifiedBounds.op(windowBounds, Region.Op.UNION);
                         mMagnifiedBounds.op(mAvailableBounds, Region.Op.INTERSECT);
                     } else {
-                        Region touchableRegion = mTempRegion3;
-                        windowState.getTouchableRegion(touchableRegion);
-                        Rect touchableFrame = mTempRect1;
-                        touchableRegion.getBounds(touchableFrame);
-                        windowFrame.set(touchableFrame);
-                        windowFrame.offset(-windowState.mFrame.left, -windowState.mFrame.top);
-                        matrix.mapRect(windowFrame);
-                        windowBounds.set((int) windowFrame.left, (int) windowFrame.top,
-                                (int) windowFrame.right, (int) windowFrame.bottom);
                         nonMagnifiedBounds.op(windowBounds, Region.Op.UNION);
-                        windowBounds.op(mMagnifiedBounds, Region.Op.DIFFERENCE);
                         mAvailableBounds.op(windowBounds, Region.Op.DIFFERENCE);
                     }
 
+                    // Update accounted bounds
                     Region accountedBounds = mTempRegion2;
                     accountedBounds.set(mMagnifiedBounds);
                     accountedBounds.op(nonMagnifiedBounds, Region.Op.UNION);
diff --git a/services/core/java/com/android/server/wm/DockedStackDividerController.java b/services/core/java/com/android/server/wm/DockedStackDividerController.java
index 6741aba..68ea4df 100644
--- a/services/core/java/com/android/server/wm/DockedStackDividerController.java
+++ b/services/core/java/com/android/server/wm/DockedStackDividerController.java
@@ -41,6 +41,8 @@
 
 import com.android.server.wm.DimLayer.DimLayerUser;
 
+import java.util.ArrayList;
+
 /**
  * Keeps information about the docked stack divider.
  */
@@ -87,7 +89,7 @@
     private final DimLayer mDimLayer;
 
     private boolean mMinimizedDock;
-    private boolean mAnimating;
+    private boolean mAnimatingForMinimizedDockedStack;
     private boolean mAnimationStarted;
     private long mAnimationStartTime;
     private float mAnimationStart;
@@ -96,7 +98,8 @@
     private final Interpolator mMinimizedDockInterpolator;
     private float mMaximizeMeetFraction;
     private final Rect mTouchRegion = new Rect();
-    private boolean mAdjustingForIme;
+    private boolean mAnimatingForIme;
+    private boolean mAdjustedForIme;
 
     DockedStackDividerController(WindowManagerService service, DisplayContent displayContent) {
         mService = service;
@@ -174,12 +177,11 @@
         return mLastVisibility;
     }
 
-    void setAdjustingForIme(boolean adjusting) {
-        mAdjustingForIme = adjusting;
-    }
-
-    boolean isAdjustingForIme() {
-        return mAdjustingForIme;
+    void setAdjustedForIme(boolean adjusted, boolean animate) {
+        if (mAdjustedForIme != adjusted) {
+            mAnimatingForIme = animate;
+            mAdjustedForIme = adjusted;
+        }
     }
 
     void positionDockedStackedDivider(Rect frame) {
@@ -342,6 +344,7 @@
         }
 
         mMinimizedDock = minimizedDock;
+        mAnimatingForIme = false;
         if (minimizedDock) {
             if (animate) {
                 startAdjustAnimation(0f, 1f);
@@ -358,7 +361,7 @@
     }
 
     private void startAdjustAnimation(float from, float to) {
-        mAnimating = true;
+        mAnimatingForMinimizedDockedStack = true;
         mAnimationStarted = false;
         mAnimationStart = from;
         mAnimationTarget = to;
@@ -380,10 +383,45 @@
     }
 
     public boolean animate(long now) {
-        if (!mAnimating) {
+        if (mAnimatingForMinimizedDockedStack) {
+            return animateForMinimizedDockedStack(now);
+        } else if (mAnimatingForIme) {
+            return animateForIme();
+        } else {
             return false;
         }
+    }
 
+    private boolean animateForIme() {
+        boolean updated = false;
+        boolean animating = false;
+
+        final ArrayList<TaskStack> stacks = mDisplayContent.getStacks();
+        for (int i = stacks.size() - 1; i >= 0; --i) {
+            final TaskStack stack = stacks.get(i);
+            if (stack != null && stack.isAdjustedForIme()) {
+                updated |= stack.updateAdjustForIme();
+                animating |= stack.isAnimatingForIme();
+            }
+        }
+
+        if (updated) {
+            mService.mWindowPlacerLocked.performSurfacePlacement();
+        }
+
+        if (!animating) {
+            mAnimatingForIme = false;
+            for (int i = stacks.size() - 1; i >= 0; --i) {
+                final TaskStack stack = stacks.get(i);
+                if (stack != null) {
+                    stack.clearImeGoingAway();
+                }
+            }
+        }
+        return animating;
+    }
+
+    private boolean animateForMinimizedDockedStack(long now) {
         final TaskStack stack = mDisplayContent.getDockedStackVisibleForUserLocked();
         if (!mAnimationStarted) {
             mAnimationStarted = true;
@@ -406,7 +444,7 @@
             }
         }
         if (t >= 1.0f) {
-            mAnimating = false;
+            mAnimatingForMinimizedDockedStack = false;
             return false;
         } else {
             return true;
diff --git a/services/core/java/com/android/server/wm/InputConsumerImpl.java b/services/core/java/com/android/server/wm/InputConsumerImpl.java
index 0581a16..24783bc 100644
--- a/services/core/java/com/android/server/wm/InputConsumerImpl.java
+++ b/services/core/java/com/android/server/wm/InputConsumerImpl.java
@@ -16,38 +16,33 @@
 
 package com.android.server.wm;
 
-import android.os.Looper;
 import android.os.Process;
 import android.view.Display;
 import android.view.InputChannel;
-import android.view.InputEventReceiver;
 import android.view.WindowManager;
-import android.view.WindowManagerPolicy;
-
 import com.android.server.input.InputApplicationHandle;
 import com.android.server.input.InputWindowHandle;
 
-public final class InputConsumerImpl implements WindowManagerPolicy.InputConsumer {
+class InputConsumerImpl {
     final WindowManagerService mService;
     final InputChannel mServerChannel, mClientChannel;
     final InputApplicationHandle mApplicationHandle;
     final InputWindowHandle mWindowHandle;
-    final InputEventReceiver mInputEventReceiver;
-    final int mWindowLayer;
 
-    public InputConsumerImpl(WindowManagerService service, Looper looper,
-            InputEventReceiver.Factory inputEventReceiverFactory) {
-        String name = "input consumer";
+    InputConsumerImpl(WindowManagerService service, String name, InputChannel inputChannel) {
         mService = service;
 
         InputChannel[] channels = InputChannel.openInputChannelPair(name);
         mServerChannel = channels[0];
-        mClientChannel = channels[1];
+        if (inputChannel != null) {
+            channels[1].transferTo(inputChannel);
+            channels[1].dispose();
+            mClientChannel = inputChannel;
+        } else {
+            mClientChannel = channels[1];
+        }
         mService.mInputManager.registerInputChannel(mServerChannel, null);
 
-        mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
-                mClientChannel, looper);
-
         mApplicationHandle = new InputApplicationHandle(null);
         mApplicationHandle.name = name;
         mApplicationHandle.dispatchingTimeoutNanos =
@@ -57,8 +52,7 @@
         mWindowHandle.name = name;
         mWindowHandle.inputChannel = mServerChannel;
         mWindowHandle.layoutParamsType = WindowManager.LayoutParams.TYPE_INPUT_CONSUMER;
-        mWindowLayer = getLayerLw(mWindowHandle.layoutParamsType);
-        mWindowHandle.layer = mWindowLayer;
+        mWindowHandle.layer = getLayerLw(mWindowHandle.layoutParamsType);
         mWindowHandle.layoutParamsFlags = 0;
         mWindowHandle.dispatchingTimeoutNanos =
                 WindowManagerService.DEFAULT_INPUT_DISPATCHING_TIMEOUT_NANOS;
@@ -81,21 +75,15 @@
         mWindowHandle.frameBottom = dh;
     }
 
-    @Override
-    public void dismiss() {
-        synchronized (mService.mWindowMap) {
-            if (mService.removeInputConsumer()) {
-                mInputEventReceiver.dispose();
-                mService.mInputManager.unregisterInputChannel(mServerChannel);
-                mClientChannel.dispose();
-                mServerChannel.dispose();
-            }
-        }
-    }
-
     private int getLayerLw(int windowType) {
         return mService.mPolicy.windowTypeToLayerLw(windowType)
                 * WindowManagerService.TYPE_LAYER_MULTIPLIER
                 + WindowManagerService.TYPE_LAYER_OFFSET;
     }
+
+    void disposeChannelsLw() {
+        mService.mInputManager.unregisterInputChannel(mServerChannel);
+        mClientChannel.dispose();
+        mServerChannel.dispose();
+    }
 }
diff --git a/services/core/java/com/android/server/wm/InputMonitor.java b/services/core/java/com/android/server/wm/InputMonitor.java
index b702180..eea0e73 100644
--- a/services/core/java/com/android/server/wm/InputMonitor.java
+++ b/services/core/java/com/android/server/wm/InputMonitor.java
@@ -282,6 +282,8 @@
 
         boolean addInputConsumerHandle = mService.mInputConsumer != null;
 
+        boolean addWallpaperInputConsumerHandle = mService.mWallpaperInputConsumer != null;
+
         // Add all windows on the default display.
         final int numDisplays = mService.mDisplayContents.size();
         final WallpaperController wallpaperController = mService.mWallpaperControllerLocked;
@@ -302,6 +304,14 @@
                     addInputConsumerHandle = false;
                 }
 
+                if (addWallpaperInputConsumerHandle) {
+                    if (child.mAttrs.type == WindowManager.LayoutParams.TYPE_WALLPAPER) {
+                        // Add the wallpaper input consumer above the first wallpaper window.
+                        addInputWindowHandleLw(mService.mWallpaperInputConsumer.mWindowHandle);
+                        addWallpaperInputConsumerHandle = false;
+                    }
+                }
+
                 final int flags = child.mAttrs.flags;
                 final int privateFlags = child.mAttrs.privateFlags;
                 final int type = child.mAttrs.type;
@@ -329,6 +339,11 @@
             }
         }
 
+        if (addWallpaperInputConsumerHandle) {
+            // No wallpaper found, add the wallpaper input consumer at the end.
+            addInputWindowHandleLw(mService.mWallpaperInputConsumer.mWindowHandle);
+        }
+
         // Send windows to native code.
         mService.mInputManager.setInputWindows(mInputWindowHandles);
 
diff --git a/services/core/java/com/android/server/wm/Session.java b/services/core/java/com/android/server/wm/Session.java
index c0c1ed8..daeb860 100644
--- a/services/core/java/com/android/server/wm/Session.java
+++ b/services/core/java/com/android/server/wm/Session.java
@@ -195,10 +195,8 @@
 
     @Override
     public void repositionChild(IWindow window, int left, int top, int right, int bottom,
-            int requestedWidth, int requestedHeight,
             long deferTransactionUntilFrame, Rect outFrame) {
         mService.repositionChild(this, window, left, top, right, bottom,
-                requestedWidth, requestedHeight,
                 deferTransactionUntilFrame, outFrame);
     }
 
diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 8d67771..0bf7102 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -55,6 +55,11 @@
     // If the stack should be resized to fullscreen.
     private static final boolean FULLSCREEN = true;
 
+    // When we have a top-bottom split screen, we shift the bottom stack up to accommodate
+    // the IME window. The static flag below controls whether to run animation when the
+    // IME window goes away.
+    private static final boolean ANIMATE_IME_GOING_AWAY = false;
+
     /** Unique identifier */
     final int mStackId;
 
@@ -107,6 +112,7 @@
     private final Rect mLastContentBounds = new Rect();
     private final Rect mTmpAdjustedBounds = new Rect();
     private boolean mAdjustedForIme;
+    private boolean mImeGoingAway;
     private WindowState mImeWin;
     private float mMinimizeAmount;
     private final int mDockedStackMinimizeThickness;
@@ -796,19 +802,54 @@
     void setAdjustedForIme(WindowState imeWin) {
         mAdjustedForIme = true;
         mImeWin = imeWin;
-        if (updateAdjustedBounds()) {
-            getDisplayContent().mDividerControllerLocked.setAdjustingForIme(true);
+        mImeGoingAway = false;
+    }
+
+    boolean isAdjustedForIme() {
+        return mAdjustedForIme || mImeGoingAway;
+    }
+    void clearImeGoingAway() {
+        mImeGoingAway = false;
+    }
+
+    boolean isAnimatingForIme() {
+        return mImeWin != null && mImeWin.isAnimatingLw();
+    }
+
+    /**
+     * Update the stack's bounds (crop or position) according to the IME window's
+     * current position. When IME window is animated, the bottom stack is animated
+     * together to track the IME window's current position, and the top stack is
+     * cropped as necessary.
+     *
+     * @return true if a traversal should be performed after the adjustment.
+     */
+    boolean updateAdjustForIme() {
+        boolean stopped = false;
+        if (mImeGoingAway && (!ANIMATE_IME_GOING_AWAY || !isAnimatingForIme())) {
+            mImeWin = null;
+            mAdjustedForIme = false;
+            stopped = true;
         }
+        // Make sure to run a traversal when the animation stops so that the stack
+        // is moved to its final position.
+        return updateAdjustedBounds() || stopped;
     }
 
     /**
      * Resets the adjustment after it got adjusted for the IME.
+     * @param adjustBoundsNow if true, reset and update the bounds immediately and forget about
+     *                        animations; otherwise, set flag and animates the window away together
+     *                        with IME window.
      */
-    void resetAdjustedForIme() {
-        mAdjustedForIme = false;
-        mImeWin = null;
-        if (updateAdjustedBounds()) {
-            getDisplayContent().mDividerControllerLocked.setAdjustingForIme(true);
+    void resetAdjustedForIme(boolean adjustBoundsNow) {
+        if (adjustBoundsNow) {
+            mImeWin = null;
+            mAdjustedForIme = false;
+            mImeGoingAway = false;
+            updateAdjustedBounds();
+        } else {
+            mImeGoingAway |= mAdjustedForIme;
         }
     }
 
@@ -843,6 +884,12 @@
         getDisplayContent().getContentRect(displayContentRect);
         contentBounds.set(displayContentRect);
         int imeTop = Math.max(imeWin.getDisplayFrameLw().top, contentBounds.top);
+
+        // if IME window is animating, get its actual vertical shown position (but no smaller than
+        // the final target vertical position)
+        if (imeWin.isAnimatingLw()) {
+            imeTop = Math.max(imeTop, imeWin.getShownPositionLw().y);
+        }
         imeTop += imeWin.getGivenContentInsetsLw().top;
         if (contentBounds.bottom > imeTop) {
             contentBounds.bottom = imeTop;
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 5d13b3b..dcb4a63 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -407,6 +407,11 @@
     InputConsumerImpl mInputConsumer;
 
     /**
+     * The input consumer added to the window manager before all wallpaper windows.
+     */
+    InputConsumerImpl mWallpaperInputConsumer;
+
+    /**
      * Windows that are being resized.  Used so we can tell the client about
      * the resize after closing the transaction in which we resized the
      * underlying surface.
@@ -2531,7 +2536,6 @@
 
     void repositionChild(Session session, IWindow client,
             int left, int top, int right, int bottom,
-            int requestedWidth, int requestedHeight,
             long deferTransactionUntilFrame, Rect outFrame) {
         Trace.traceBegin(Trace.TRACE_TAG_WINDOW_MANAGER, "repositionChild");
         long origId = Binder.clearCallingIdentity();
@@ -2547,7 +2551,6 @@
                             "repositionChild called but window is not"
                             + "attached to a parent win=" + win);
                 }
-                win.setRequestedSize(requestedWidth, requestedHeight);
 
                 win.mAttrs.x = left;
                 win.mAttrs.y = top;
@@ -2604,8 +2607,6 @@
                         == PackageManager.PERMISSION_GRANTED;
 
         long origId = Binder.clearCallingIdentity();
-        final boolean preserveGeometry = (attrs != null) && (attrs.privateFlags &
-                WindowManager.LayoutParams.PRIVATE_FLAG_PRESERVE_GEOMETRY) != 0;
         synchronized(mWindowMap) {
             WindowState win = windowForClientLocked(session, client, false);
             if (win == null) {
@@ -2613,7 +2614,7 @@
             }
 
             WindowStateAnimator winAnimator = win.mWinAnimator;
-            if (!preserveGeometry && viewVisibility != View.GONE) {
+            if (viewVisibility != View.GONE) {
                 win.setRequestedSize(requestedWidth, requestedHeight);
             }
 
@@ -2662,9 +2663,7 @@
             if ((attrChanges & WindowManager.LayoutParams.ALPHA_CHANGED) != 0) {
                 winAnimator.mAlpha = attrs.alpha;
             }
-            if (!preserveGeometry) {
-                win.setWindowScale(win.mRequestedWidth, win.mRequestedHeight);
-            }
+            win.setWindowScale(win.mRequestedWidth, win.mRequestedHeight);
 
             boolean imMayMove = (flagChanges & (FLAG_ALT_FOCUSABLE_IM | FLAG_NOT_FOCUSABLE)) != 0;
             final boolean isDefaultDisplay = win.isDefaultDisplay();
@@ -7380,8 +7379,9 @@
         final WindowState imeWin = mInputMethodWindow;
         final TaskStack focusedStack =
                 mCurrentFocus != null ? mCurrentFocus.getStack() : null;
+        final boolean dockVisible = isStackVisibleLocked(DOCKED_STACK_ID);
         if (imeWin != null && imeWin.isVisibleLw() && imeWin.isDisplayedLw()
-                && isStackVisibleLocked(DOCKED_STACK_ID)
+                && dockVisible
                 && focusedStack != null
                 && focusedStack.getDockSide() == DOCKED_BOTTOM){
             final ArrayList<TaskStack> stacks = displayContent.getStacks();
@@ -7391,12 +7391,14 @@
                     stack.setAdjustedForIme(imeWin);
                 }
             }
+            displayContent.mDividerControllerLocked.setAdjustedForIme(true, true);
         } else {
             final ArrayList<TaskStack> stacks = displayContent.getStacks();
             for (int i = stacks.size() - 1; i >= 0; --i) {
                 final TaskStack stack = stacks.get(i);
-                stack.resetAdjustedForIme();
+                stack.resetAdjustedForIme(!dockVisible);
             }
+            displayContent.mDividerControllerLocked.setAdjustedForIme(false, dockVisible);
         }
     }
 
@@ -9627,13 +9629,37 @@
         }
     }
 
+    private static final class HideNavInputConsumer extends InputConsumerImpl
+            implements WindowManagerPolicy.InputConsumer {
+        private final InputEventReceiver mInputEventReceiver;
+
+        HideNavInputConsumer(WindowManagerService service, Looper looper,
+                             InputEventReceiver.Factory inputEventReceiverFactory) {
+            super(service, "input consumer", null);
+            mInputEventReceiver = inputEventReceiverFactory.createInputEventReceiver(
+                    mClientChannel, looper);
+        }
+
+        @Override
+        public void dismiss() {
+            if (mService.removeInputConsumer()) {
+                synchronized (mService.mWindowMap) {
+                    mInputEventReceiver.dispose();
+                    disposeChannelsLw();
+                }
+            }
+        }
+    }
+
     @Override
-    public InputConsumerImpl addInputConsumer(Looper looper,
+    public WindowManagerPolicy.InputConsumer addInputConsumer(Looper looper,
             InputEventReceiver.Factory inputEventReceiverFactory) {
         synchronized (mWindowMap) {
-            mInputConsumer = new InputConsumerImpl(this, looper, inputEventReceiverFactory);
+            HideNavInputConsumer inputConsumerImpl = new HideNavInputConsumer(
+                    this, looper, inputEventReceiverFactory);
+            mInputConsumer = inputConsumerImpl;
             mInputMonitor.updateInputWindowsLw(true);
-            return mInputConsumer;
+            return inputConsumerImpl;
         }
     }
 
@@ -9648,6 +9674,24 @@
         }
     }
 
+    public void createWallpaperInputConsumer(InputChannel inputChannel) {
+        synchronized (mWindowMap) {
+            mWallpaperInputConsumer = new InputConsumerImpl(this, "wallpaper input", inputChannel);
+            mWallpaperInputConsumer.mWindowHandle.hasWallpaper = true;
+            mInputMonitor.updateInputWindowsLw(true);
+        }
+    }
+
+    public void removeWallpaperInputConsumer() {
+        synchronized (mWindowMap) {
+            if (mWallpaperInputConsumer != null) {
+                mWallpaperInputConsumer.disposeChannelsLw();
+                mWallpaperInputConsumer = null;
+                mInputMonitor.updateInputWindowsLw(true);
+            }
+        }
+    }
+
     @Override
     public boolean hasNavigationBar() {
         return mPolicy.hasNavigationBar();
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 0866c03..57ead8b 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -642,7 +642,7 @@
         mHaveFrame = true;
 
         final Task task = getTask();
-        final boolean fullscreenTask = !inMultiWindowMode();
+        final boolean fullscreenTask = !isInMultiWindowMode();
         final boolean windowsAreFloating = task != null && task.isFloating();
 
         // If the task has temp inset bounds set, we have to make sure all its windows uses
@@ -2226,7 +2226,7 @@
     }
 
     @Override
-    public boolean inMultiWindowMode() {
+    public boolean isInMultiWindowMode() {
         final Task task = getTask();
         return task != null && !task.isFullscreen();
     }
@@ -2527,7 +2527,7 @@
         final int pw = mContainingFrame.width();
         final int ph = mContainingFrame.height();
         final Task task = getTask();
-        final boolean nonFullscreenTask = inMultiWindowMode();
+        final boolean nonFullscreenTask = isInMultiWindowMode();
         final boolean fitToDisplay = task != null && !task.isFloating() && !layoutInParentFrame();
         float x, y;
         int w,h;
diff --git a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
index 3b0081d..eda2f39 100644
--- a/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
+++ b/services/core/java/com/android/server/wm/WindowSurfacePlacer.java
@@ -693,16 +693,14 @@
                     // currently animating... let's do something.
                     final int left = w.mFrame.left;
                     final int top = w.mFrame.top;
-                    final boolean adjustedForMinimizedDockedStack = w.getTask() != null &&
-                            w.getTask().mStack.isAdjustedForMinimizedDockedStack();
+                    final boolean adjustedForMinimizedDockOrIme = task != null
+                                && (task.mStack.isAdjustedForMinimizedDockedStack()
+                                    || task.mStack.isAdjustedForIme());
                     if ((w.mAttrs.privateFlags & PRIVATE_FLAG_NO_MOVE_ANIMATION) == 0
-                            && !w.isDragResizing() && !adjustedForMinimizedDockedStack
+                            && !w.isDragResizing() && !adjustedForMinimizedDockOrIme
                             && (task == null || !w.getTask().mStack.getFreezeMovementAnimations())
                             && !w.mWinAnimator.mLastHidden) {
                         winAnimator.setMoveAnimation(left, top);
-                    } else if (w.mAttrs.type  == TYPE_DOCK_DIVIDER &&
-                            displayContent.getDockedDividerController().isAdjustingForIme()) {
-                        winAnimator.setMoveAnimation(left, top);
                     }
 
                     //TODO (multidisplay): Accessibility supported only for the default display.
@@ -819,8 +817,6 @@
                 mService.updateResizingWindows(w);
             }
 
-            displayContent.getDockedDividerController().setAdjustingForIme(false);
-
             mService.mDisplayManagerInternal.setDisplayProperties(displayId,
                     mDisplayHasContent,
                     mPreferredRefreshRate,
@@ -864,6 +860,10 @@
             mService.mInputConsumer.layout(dw, dh);
         }
 
+        if (mService.mWallpaperInputConsumer != null) {
+            mService.mWallpaperInputConsumer.layout(dw, dh);
+        }
+
         final int N = windows.size();
         int i;
 
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 86dd118..96ec02a 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -654,8 +654,8 @@
         String shortSupportMessage = null;
         String longSupportMessage = null;
 
-        // Background color of confirm credentials screen. Default: gray.
-        static final int DEF_ORGANIZATION_COLOR = Color.GRAY;
+        // Background color of confirm credentials screen. Default: teal.
+        static final int DEF_ORGANIZATION_COLOR = Color.parseColor("#00796B");
         int organizationColor = DEF_ORGANIZATION_COLOR;
 
         // Default title of confirm credentials screen
@@ -4138,8 +4138,8 @@
     }
 
     @Override
-    public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, String alias,
-            boolean requestAccess) {
+    public boolean installKeyPair(ComponentName who, byte[] privKey, byte[] cert, byte[] chain,
+            String alias, boolean requestAccess) {
         enforceCanManageInstalledKeys(who);
 
         final int callingUid = mInjector.binderGetCallingUid();
@@ -4149,7 +4149,7 @@
                     KeyChain.bindAsUser(mContext, UserHandle.getUserHandleForUid(callingUid));
             try {
                 IKeyChainService keyChain = keyChainConnection.getService();
-                if (!keyChain.installKeyPair(privKey, cert, alias)) {
+                if (!keyChain.installKeyPair(privKey, cert, chain, alias)) {
                     return false;
                 }
                 if (requestAccess) {
@@ -5696,26 +5696,25 @@
     }
 
     @Override
-    public boolean setDeviceOwnerLockScreenInfo(ComponentName who, String info) {
+    public void setDeviceOwnerLockScreenInfo(ComponentName who, CharSequence info) {
         Preconditions.checkNotNull(who, "ComponentName is null");
         if (!mHasFeature) {
-            return false;
+            return;
         }
 
         synchronized (this) {
             getActiveAdminForCallerLocked(who, DeviceAdminInfo.USES_POLICY_DEVICE_OWNER);
             long token = mInjector.binderClearCallingIdentity();
             try {
-                mLockPatternUtils.setDeviceOwnerInfo(info);
+                mLockPatternUtils.setDeviceOwnerInfo(info != null ? info.toString() : null);
             } finally {
                 mInjector.binderRestoreCallingIdentity(token);
             }
-            return true;
         }
     }
 
     @Override
-    public String getDeviceOwnerLockScreenInfo() {
+    public CharSequence getDeviceOwnerLockScreenInfo() {
         return mLockPatternUtils.getDeviceOwnerInfo();
     }
 
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 14efc27..b026bc5 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -697,6 +697,14 @@
         // as appropriate.
         mSystemServiceManager.startService(UiModeManagerService.class);
 
+        Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER, "UpdatePackagesIfNeeded");
+        try {
+            mPackageManagerService.updatePackagesIfNeeded();
+        } catch (Throwable e) {
+            reportWtf("update packages", e);
+        }
+        Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);
+
         Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER, "PerformFstrimIfNeeded");
         try {
             mPackageManagerService.performFstrimIfNeeded();
@@ -705,14 +713,6 @@
         }
         Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);
 
-        Trace.traceBegin(Trace.TRACE_TAG_SYSTEM_SERVER, "ExtractPackagesIfNeeded");
-        try {
-            mPackageManagerService.extractPackagesIfNeeded();
-        } catch (Throwable e) {
-            reportWtf("extract packages", e);
-        }
-        Trace.traceEnd(Trace.TRACE_TAG_SYSTEM_SERVER);
-
         try {
             ActivityManagerNative.getDefault().showBootMessage(
                     context.getResources().getText(
@@ -1025,7 +1025,8 @@
                     mSystemServiceManager.startService(BACKUP_MANAGER_SERVICE_CLASS);
                 }
 
-                if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_APP_WIDGETS)) {
+                if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_APP_WIDGETS)
+                    || context.getResources().getBoolean(R.bool.config_enableAppWidgetService)) {
                     mSystemServiceManager.startService(APPWIDGET_SERVICE_CLASS);
                 }
 
@@ -1131,7 +1132,9 @@
                 mSystemServiceManager.startService(TvInputManagerService.class);
             }
 
-            mSystemServiceManager.startService(MediaResourceMonitorService.class);
+            if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_PICTURE_IN_PICTURE)) {
+                mSystemServiceManager.startService(MediaResourceMonitorService.class);
+            }
 
             if (!disableNonCoreServices) {
                 traceBeginAndSlog("StartMediaRouterService");
diff --git a/services/tests/servicestests/src/com/android/server/pm/ShortcutInfoTest.java b/services/tests/servicestests/src/com/android/server/pm/ShortcutInfoTest.java
index eb16a1d..c44ffa4 100644
--- a/services/tests/servicestests/src/com/android/server/pm/ShortcutInfoTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/ShortcutInfoTest.java
@@ -16,9 +16,16 @@
  */
 package com.android.server.pm;
 
+import android.content.ComponentName;
+import android.content.Intent;
 import android.content.pm.ShortcutInfo;
+import android.graphics.drawable.Icon;
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.PersistableBundle;
 import android.test.AndroidTestCase;
 
+import com.android.internal.util.Preconditions;
 import com.android.server.testutis.TestUtils;
 
 /**
@@ -33,12 +40,232 @@
  */
 public class ShortcutInfoTest extends AndroidTestCase {
 
-    public void testNoId() {
+    public void testMissingMandatoryFields() {
         TestUtils.assertExpectException(
                 IllegalArgumentException.class,
                 "ID must be provided",
                 () -> new ShortcutInfo.Builder(mContext).build());
+        TestUtils.assertExpectException(
+                IllegalArgumentException.class,
+                "title must be provided",
+                () -> new ShortcutInfo.Builder(mContext).setId("id").build()
+                        .enforceMandatoryFields());
+        TestUtils.assertExpectException(
+                NullPointerException.class,
+                "Intent must be provided",
+                () -> new ShortcutInfo.Builder(mContext).setId("id").setTitle("x").build()
+                        .enforceMandatoryFields());
     }
 
-    // TODO Add more tests.
+    private ShortcutInfo parceled(ShortcutInfo si) {
+        Parcel p = Parcel.obtain();
+        p.writeParcelable(si, 0);
+        p.setDataPosition(0);
+        ShortcutInfo si2 = p.readParcelable(getClass().getClassLoader());
+        p.recycle();
+        return si2;
+    }
+
+    private Intent makeIntent(String action, Object... bundleKeysAndValues) {
+        final Intent intent = new Intent(action);
+        intent.replaceExtras(ShortcutManagerTest.makeBundle(bundleKeysAndValues));
+        return intent;
+    }
+
+    public void testParcel() {
+        ShortcutInfo si = parceled(new ShortcutInfo.Builder(getContext())
+                .setId("id")
+                .setTitle("title")
+                .setIntent(makeIntent("action"))
+                .build());
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals("title", si.getTitle());
+        assertEquals("action", si.getIntent().getAction());
+
+        PersistableBundle pb = new PersistableBundle();
+        pb.putInt("k", 1);
+
+        si = new ShortcutInfo.Builder(getContext())
+                .setId("id")
+                .setActivityComponent(new ComponentName("a", "b"))
+                .setIcon(Icon.createWithContentUri("content://a.b.c/"))
+                .setTitle("title")
+                .setText("text")
+                .setIntent(makeIntent("action", "key", "val"))
+                .setWeight(123)
+                .setExtras(pb)
+                .build();
+        si.addFlags(ShortcutInfo.FLAG_PINNED);
+        si.setBitmapPath("abc");
+        si.setIconResourceId(456);
+
+        si = parceled(si);
+
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals(new ComponentName("a", "b"), si.getActivityComponent());
+        assertEquals("content://a.b.c/", si.getIcon().getUriString());
+        assertEquals("title", si.getTitle());
+        assertEquals("text", si.getText());
+        assertEquals("action", si.getIntent().getAction());
+        assertEquals("val", si.getIntent().getStringExtra("key"));
+        assertEquals(123, si.getWeight());
+        assertEquals(1, si.getExtras().getInt("k"));
+
+        assertEquals(ShortcutInfo.FLAG_PINNED, si.getFlags());
+        assertEquals("abc", si.getBitmapPath());
+        assertEquals(456, si.getIconResourceId());
+    }
+
+    public void testClone() {
+        PersistableBundle pb = new PersistableBundle();
+        pb.putInt("k", 1);
+        ShortcutInfo sorig = new ShortcutInfo.Builder(getContext())
+                .setId("id")
+                .setActivityComponent(new ComponentName("a", "b"))
+                .setIcon(Icon.createWithContentUri("content://a.b.c/"))
+                .setTitle("title")
+                .setText("text")
+                .setIntent(makeIntent("action", "key", "val"))
+                .setWeight(123)
+                .setExtras(pb)
+                .build();
+        sorig.addFlags(ShortcutInfo.FLAG_PINNED);
+        sorig.setBitmapPath("abc");
+        sorig.setIconResourceId(456);
+
+        ShortcutInfo si = sorig.clone(/* clone flags*/ 0);
+
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals(new ComponentName("a", "b"), si.getActivityComponent());
+        assertEquals("content://a.b.c/", si.getIcon().getUriString());
+        assertEquals("title", si.getTitle());
+        assertEquals("text", si.getText());
+        assertEquals("action", si.getIntent().getAction());
+        assertEquals("val", si.getIntent().getStringExtra("key"));
+        assertEquals(123, si.getWeight());
+        assertEquals(1, si.getExtras().getInt("k"));
+
+        assertEquals(ShortcutInfo.FLAG_PINNED, si.getFlags());
+        assertEquals("abc", si.getBitmapPath());
+        assertEquals(456, si.getIconResourceId());
+
+        si = sorig.clone(ShortcutInfo.CLONE_REMOVE_FOR_CREATOR);
+
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals(new ComponentName("a", "b"), si.getActivityComponent());
+        assertEquals(null, si.getIcon());
+        assertEquals("title", si.getTitle());
+        assertEquals("text", si.getText());
+        assertEquals("action", si.getIntent().getAction());
+        assertEquals("val", si.getIntent().getStringExtra("key"));
+        assertEquals(123, si.getWeight());
+        assertEquals(1, si.getExtras().getInt("k"));
+
+        assertEquals(ShortcutInfo.FLAG_PINNED, si.getFlags());
+        assertEquals(null, si.getBitmapPath());
+        assertEquals(0, si.getIconResourceId());
+
+        si = sorig.clone(ShortcutInfo.CLONE_REMOVE_FOR_LAUNCHER);
+
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals(new ComponentName("a", "b"), si.getActivityComponent());
+        assertEquals(null, si.getIcon());
+        assertEquals("title", si.getTitle());
+        assertEquals("text", si.getText());
+        assertEquals(null, si.getIntent());
+        assertEquals(123, si.getWeight());
+        assertEquals(1, si.getExtras().getInt("k"));
+
+        assertEquals(ShortcutInfo.FLAG_PINNED, si.getFlags());
+        assertEquals(null, si.getBitmapPath());
+        assertEquals(0, si.getIconResourceId());
+
+        si = sorig.clone(ShortcutInfo.CLONE_REMOVE_NON_KEY_INFO);
+
+        assertEquals(getContext().getPackageName(), si.getPackageName());
+        assertEquals("id", si.getId());
+        assertEquals(null, si.getActivityComponent());
+        assertEquals(null, si.getIcon());
+        assertEquals(null, si.getTitle());
+        assertEquals(null, si.getText());
+        assertEquals(null, si.getIntent());
+        assertEquals(0, si.getWeight());
+        assertEquals(null, si.getExtras());
+
+        assertEquals(ShortcutInfo.FLAG_PINNED | ShortcutInfo.FLAG_KEY_FIELDS_ONLY, si.getFlags());
+        assertEquals(null, si.getBitmapPath());
+        assertEquals(0, si.getIconResourceId());
+    }
+
+
+    public void testCopyNonNullFieldsFrom() {
+        PersistableBundle pb = new PersistableBundle();
+        pb.putInt("k", 1);
+        ShortcutInfo sorig = new ShortcutInfo.Builder(getContext())
+                .setId("id")
+                .setActivityComponent(new ComponentName("a", "b"))
+                .setIcon(Icon.createWithContentUri("content://a.b.c/"))
+                .setTitle("title")
+                .setText("text")
+                .setIntent(makeIntent("action", "key", "val"))
+                .setWeight(123)
+                .setExtras(pb)
+                .build();
+        sorig.addFlags(ShortcutInfo.FLAG_PINNED);
+        sorig.setBitmapPath("abc");
+        sorig.setIconResourceId(456);
+
+        ShortcutInfo si;
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setActivityComponent(new ComponentName("x", "y")).build());
+        assertEquals(new ComponentName("x", "y"), si.getActivityComponent());
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setIcon(Icon.createWithContentUri("content://x.y.z/")).build());
+        assertEquals("content://x.y.z/", si.getIcon().getUriString());
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setTitle("xyz").build());
+        assertEquals("xyz", si.getTitle());
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setText("xxx").build());
+        assertEquals("xxx", si.getText());
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setIntent(makeIntent("action2")).build());
+        assertEquals("action2", si.getIntent().getAction());
+        assertEquals(null, si.getIntent().getStringExtra("key"));
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setIntent(makeIntent("action3", "key", "x")).build());
+        assertEquals("action3", si.getIntent().getAction());
+        assertEquals("x", si.getIntent().getStringExtra("key"));
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setWeight(999).build());
+        assertEquals(999, si.getWeight());
+
+
+        PersistableBundle pb2 = new PersistableBundle();
+        pb2.putInt("x", 99);
+
+        si = sorig.clone(/* flags=*/ 0);
+        si.copyNonNullFieldsFrom(new ShortcutInfo.Builder(getContext()).setId("id")
+                .setExtras(pb2).build());
+        assertEquals(99, si.getExtras().getInt("x"));
+    }
 }
diff --git a/services/tests/servicestests/src/com/android/server/pm/ShortcutManagerTest.java b/services/tests/servicestests/src/com/android/server/pm/ShortcutManagerTest.java
index 61249ae..5d29242 100644
--- a/services/tests/servicestests/src/com/android/server/pm/ShortcutManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/pm/ShortcutManagerTest.java
@@ -646,7 +646,7 @@
         runTestOnUiThread(() -> {});
     }
 
-    private static Bundle makeBundle(Object... keysAndValues) {
+    public static Bundle makeBundle(Object... keysAndValues) {
         Preconditions.checkState((keysAndValues.length % 2) == 0);
 
         if (keysAndValues.length == 0) {
@@ -797,7 +797,6 @@
     @NonNull
     private List<ShortcutInfo> assertShortcutIds(@NonNull List<ShortcutInfo> actualShortcuts,
             String... expectedIds) {
-        assertEquals(expectedIds.length, actualShortcuts.size());
         final HashSet<String> expected = new HashSet<>(list(expectedIds));
         final HashSet<String> actual = new HashSet<>();
         for (ShortcutInfo s : actualShortcuts) {
@@ -973,18 +972,6 @@
         assertTrue(b == null || b.size() == 0);
     }
 
-    private void assertShortcutPackageInfo(String packageName, int userId, int expectedVersion) {
-        ShortcutPackageInfo spi = mService.getPackageInfoForTest(packageName, userId);
-        assertNotNull(spi);
-        assertEquals(expectedVersion, spi.getVersionCode());
-
-        assertTrue(spi.canRestoreTo(genPackage(packageName, /*uid*/ 0, 9999999, packageName)));
-    }
-
-    private void assertNoShortcutPackageInfo(String packageName, int userId) {
-        assertNull(mService.getPackageInfoForTest(packageName, userId));
-    }
-
     private ShortcutInfo getPackageShortcut(String packageName, String shortcutId, int userId) {
         return mService.getPackageShortcutForTest(packageName, shortcutId, userId);
     }
@@ -1229,11 +1216,6 @@
                 "shortcut1", "shortcut2");
         assertEquals(2, mManager.getRemainingCallCount());
 
-        assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_2, USER_0);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_1, USER_10);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_2, USER_10);
-
         // TODO: Check fields
 
         assertTrue(mManager.setDynamicShortcuts(list(si1)));
@@ -1260,11 +1242,6 @@
 
         runWithCaller(CALLING_PACKAGE_2, USER_10, () -> {
             assertTrue(mManager.setDynamicShortcuts(list(makeShortcut("s1"))));
-
-            assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-            assertNoShortcutPackageInfo(CALLING_PACKAGE_2, USER_0);
-            assertNoShortcutPackageInfo(CALLING_PACKAGE_1, USER_10);
-            assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_10, 2);
         });
     }
 
@@ -1302,7 +1279,6 @@
 
         runWithCaller(CALLING_PACKAGE_2, USER_10, () -> {
             assertTrue(mManager.addDynamicShortcut(makeShortcut("s1")));
-            assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_10, 2);
         });
     }
 
@@ -1608,7 +1584,6 @@
         Bitmap bmp;
 
         setCaller(LAUNCHER_1);
-
         // Check hasIconResource()/hasIconFile().
         assertShortcutIds(assertAllHaveIconResId(mLauncherApps.getShortcutInfo(
                 CALLING_PACKAGE_1, list("res32x32"),
@@ -1898,12 +1873,7 @@
         // TODO Check bitmap removal too.
 
         runWithCaller(CALLING_PACKAGE_2, USER_11, () -> {
-            assertNoShortcutPackageInfo(CALLING_PACKAGE_2, USER_11);
-
             mManager.updateShortcuts(list());
-
-            // Even an empty update call will populate the package info.
-            assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_11, 2);
         });
     }
 
@@ -1940,7 +1910,7 @@
         assertTrue(mManager.setDynamicShortcuts(list(s2_2, s2_3, s2_4)));
 
         setCaller(CALLING_PACKAGE_3);
-        final ShortcutInfo s3_2 = makeShortcutWithTimestamp("s3", 5000);
+        final ShortcutInfo s3_2 = makeShortcutWithTimestamp("s3", START_TIME + 5000);
         assertTrue(mManager.setDynamicShortcuts(list(s3_2)));
 
         setCaller(LAUNCHER_1);
@@ -2100,16 +2070,9 @@
 
         // Pin some.
         runWithCaller(LAUNCHER_1, USER_0, () -> {
-            assertNoShortcutPackageInfo(LAUNCHER_1, USER_0);
-
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
                     list("s2", "s3"), getCallingUser());
 
-            assertShortcutPackageInfo(LAUNCHER_1, USER_0, 4);
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_0);
-            assertNoShortcutPackageInfo(LAUNCHER_1, USER_10);
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_10);
-
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_2,
                     list("s3", "s4", "s5"), getCallingUser());
 
@@ -2170,19 +2133,11 @@
 
         dumpsysOnLogcat();
 
-        assertNoShortcutPackageInfo(LAUNCHER_1, USER_0);
-        assertNoShortcutPackageInfo(LAUNCHER_2, USER_0);
-        assertNoShortcutPackageInfo(LAUNCHER_1, USER_10);
-        assertNoShortcutPackageInfo(LAUNCHER_2, USER_10);
-
         // Pin some.
         runWithCaller(LAUNCHER_1, USER_0, () -> {
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
                     list("s3", "s4"), getCallingUser());
 
-            assertShortcutPackageInfo(LAUNCHER_1, USER_0, 4);
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_0);
-
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_2,
                     list("s1", "s2", "s4"), getCallingUser());
         });
@@ -2256,16 +2211,10 @@
                                     | ShortcutQuery.FLAG_GET_DYNAMIC), getCallingUser())),
                     "s2");
 
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_0);
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_10);
-
             // Now pin some.
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
                     list("s1", "s2"), getCallingUser());
 
-            assertShortcutPackageInfo(LAUNCHER_2, USER_0, 5);
-            assertNoShortcutPackageInfo(LAUNCHER_2, USER_10);
-
             mLauncherApps.pinShortcuts(CALLING_PACKAGE_2,
                     list("s1", "s2"), getCallingUser());
 
@@ -2283,12 +2232,6 @@
                     "s2");
         });
 
-        assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-        assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_0, 2);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_3, USER_0);
-        assertShortcutPackageInfo(LAUNCHER_1, USER_0, 4);
-        assertShortcutPackageInfo(LAUNCHER_2, USER_0, 5);
-
         // Re-initialize and load from the files.
         mService.saveDirtyInfo();
         initService();
@@ -2297,12 +2240,6 @@
         mService.handleUnlockUser(USER_0);
 
         // Make sure package info is restored too.
-        assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-        assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_0, 2);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_3, USER_0);
-        assertShortcutPackageInfo(LAUNCHER_1, USER_0, 4);
-        assertShortcutPackageInfo(LAUNCHER_2, USER_0, 5);
-
         runWithCaller(LAUNCHER_1, USER_0, () -> {
             assertShortcutIds(assertAllPinned(assertAllNotKeyFieldsOnly(
                     mLauncherApps.getShortcuts(buildQuery(/* time =*/ 0, CALLING_PACKAGE_1,
@@ -3234,10 +3171,6 @@
         mService.getShortcutsForTest().get(UserHandle.USER_SYSTEM).setLauncherComponent(
                 mService, new ComponentName("pkg1", "class"));
 
-        assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-        assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_0, 2);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_3, USER_0);
-
         // Restore.
         mService.saveDirtyInfo();
         initService();
@@ -3248,10 +3181,6 @@
         // this will pre-load the per-user info.
         mService.handleUnlockUser(UserHandle.USER_SYSTEM);
 
-        assertShortcutPackageInfo(CALLING_PACKAGE_1, USER_0, 1);
-        assertShortcutPackageInfo(CALLING_PACKAGE_2, USER_0, 2);
-        assertNoShortcutPackageInfo(CALLING_PACKAGE_3, USER_0);
-
         // Now it's loaded.
         assertEquals(1, mService.getShortcutsForTest().size());
 
@@ -3394,11 +3323,6 @@
         assertShortcutExists(CALLING_PACKAGE_1, "s10_1", USER_10);
         assertShortcutExists(CALLING_PACKAGE_2, "s10_2", USER_10);
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-
         mService.saveDirtyInfo();
 
         // Nonexistent package.
@@ -3430,11 +3354,6 @@
         assertShortcutExists(CALLING_PACKAGE_1, "s10_1", USER_10);
         assertShortcutExists(CALLING_PACKAGE_2, "s10_2", USER_10);
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-
         mService.saveDirtyInfo();
 
         // Remove a package.
@@ -3465,11 +3384,6 @@
         assertShortcutExists(CALLING_PACKAGE_1, "s10_1", USER_10);
         assertShortcutExists(CALLING_PACKAGE_2, "s10_2", USER_10);
 
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-
         mService.saveDirtyInfo();
 
         // Remove a launcher.
@@ -3524,11 +3438,6 @@
         assertShortcutExists(CALLING_PACKAGE_1, "s10_1", USER_10);
         assertShortcutNotExists(CALLING_PACKAGE_2, "s10_2", USER_10);
 
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-
         mService.saveDirtyInfo();
 
         // Remove the other launcher from user 10 too.
@@ -3585,6 +3494,97 @@
         mService.saveDirtyInfo();
     }
 
+
+    public void testSaveAndLoadUser_forBackup() {
+        // Create some shortcuts.
+        runWithCaller(CALLING_PACKAGE_1, USER_0, () -> {
+            assertTrue(mManager.setDynamicShortcuts(list(
+                    makeShortcut("s1"), makeShortcut("s2"), makeShortcut("s3"))));
+        });
+        runWithCaller(CALLING_PACKAGE_1, USER_P0, () -> {
+            assertTrue(mManager.setDynamicShortcuts(list(
+                    makeShortcut("s1"), makeShortcut("s2"), makeShortcut("s3"))));
+        });
+        runWithCaller(CALLING_PACKAGE_2, USER_0, () -> {
+            assertTrue(mManager.setDynamicShortcuts(list(
+                    makeShortcut("s1"), makeShortcut("s2"), makeShortcut("s3"))));
+        });
+        runWithCaller(CALLING_PACKAGE_1, USER_10, () -> {
+            assertTrue(mManager.setDynamicShortcuts(list(
+                    makeShortcut("s1"), makeShortcut("s2"), makeShortcut("s3"))));
+        });
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_0));
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_P0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_P0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_P0));
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_2, "s1", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_2, "s2", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_2, "s3", USER_0));
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_10));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
+
+        // Pin some.
+
+        runWithCaller(LAUNCHER_1, USER_0, () -> {
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
+                    list("s1"), HANDLE_USER_0);
+
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
+                    list("s2"), UserHandle.of(USER_P0));
+
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_2,
+                    list("s3"), HANDLE_USER_0);
+        });
+
+        runWithCaller(LAUNCHER_1, USER_P0, () -> {
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
+                    list("s2"), HANDLE_USER_0);
+
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
+                    list("s3"), UserHandle.of(USER_P0));
+
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_2,
+                    list("s1"), HANDLE_USER_0);
+        });
+
+        runWithCaller(LAUNCHER_1, USER_10, () -> {
+            mLauncherApps.pinShortcuts(CALLING_PACKAGE_1,
+                    list("s3"), HANDLE_USER_10);
+        });
+
+        // Check the state.
+
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_0));
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_0));
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_P0));
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_P0));
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_P0));
+
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_2, "s1", USER_0));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_2, "s2", USER_0));
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_2, "s3", USER_0));
+
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_10));
+        assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
+        assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
+
+        // Make sure all the information is persisted.
+        mService.saveDirtyInfo();
+        initService();
+        mService.handleUnlockUser(USER_0);
+        mService.handleUnlockUser(USER_P0);
+        mService.handleUnlockUser(USER_10);
+    }
+
     public void testHandleGonePackage_crossProfile() {
         // Create some shortcuts.
         runWithCaller(CALLING_PACKAGE_1, USER_0, () -> {
@@ -3667,20 +3667,6 @@
         assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        // These two shouldn't exist
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0, USER_P0));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         // Make sure all the information is persisted.
         mService.saveDirtyInfo();
         initService();
@@ -3704,21 +3690,6 @@
         assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        // These two shouldn't exist
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0, USER_P0));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
-
         // Start uninstalling.
         uninstallPackage(USER_10, LAUNCHER_1);
         mService.cleanupGonePackages(USER_10);
@@ -3739,16 +3710,6 @@
         assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertDynamicOnly(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         // Uninstall.
         uninstallPackage(USER_10, CALLING_PACKAGE_1);
         mService.cleanupGonePackages(USER_10);
@@ -3769,17 +3730,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         uninstallPackage(USER_P0, LAUNCHER_1);
         mService.cleanupGonePackages(USER_0);
 
@@ -3799,17 +3749,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         mService.cleanupGonePackages(USER_P0);
         
         assertDynamicAndPinned(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_0));
@@ -3828,17 +3767,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         uninstallPackage(USER_P0, CALLING_PACKAGE_1);
 
         mService.saveDirtyInfo();
@@ -3863,17 +3791,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         // Uninstall
         uninstallPackage(USER_0, LAUNCHER_1);
 
@@ -3899,17 +3816,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
-
         uninstallPackage(USER_0, CALLING_PACKAGE_2);
 
         mService.saveDirtyInfo();
@@ -3933,17 +3839,6 @@
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s1", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s2", USER_10));
         assertNull(getPackageShortcut(CALLING_PACKAGE_1, "s3", USER_10));
-
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_P0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_P0, USER_P0));
-        assertNull(mService.getPackageInfoForTest(LAUNCHER_1, USER_10, USER_10));
     }
 
     // TODO Detailed test for hasShortcutPermissionInner().
@@ -3998,27 +3893,6 @@
         checkCanRestoreTo(false, spi2, 11, "x", "sig2x", "sig1", "y");
     }
 
-    public void testShortcutPackageInfoRefresh() {
-        addPackage(CALLING_PACKAGE_1, CALLING_UID_1, 10, "sig1");
-
-        final ShortcutPackageInfo spi1 = ShortcutPackageInfo.generateForInstalledPackage(
-                mService, CALLING_PACKAGE_1, USER_0);
-
-        checkCanRestoreTo(true, spi1, 10, "sig1");
-
-        addPackage(CALLING_PACKAGE_1, CALLING_UID_1, 11, "sig1", "sig2");
-
-        spi1.refreshAndSave(mService, USER_0);
-
-        mService.handleCleanupUser(USER_0);
-        initService();
-
-        checkCanRestoreTo(false, spi1, 10, "sig1", "sig2");
-        checkCanRestoreTo(false, spi1, 11, "sig", "sig2");
-        checkCanRestoreTo(false, spi1, 11, "sig1", "sig");
-        checkCanRestoreTo(true, spi1, 11, "sig1", "sig2");
-    }
-
     public void testHandlePackageDelete() {
         setCaller(CALLING_PACKAGE_1, USER_0);
         assertTrue(mManager.addDynamicShortcut(makeShortcut("s1")));
@@ -4038,73 +3912,56 @@
         setCaller(CALLING_PACKAGE_3, USER_10);
         assertTrue(mManager.addDynamicShortcut(makeShortcut("s1")));
 
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_10));
 
         mService.mPackageMonitor.onReceive(getTestContext(),
                 genPackageDeleteIntent(CALLING_PACKAGE_1, USER_0));
 
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_10));
 
         mService.mPackageMonitor.onReceive(getTestContext(),
                 genPackageDeleteIntent(CALLING_PACKAGE_2, USER_10));
 
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_10));
 
         mInjectedPackages.remove(CALLING_PACKAGE_1);
         mInjectedPackages.remove(CALLING_PACKAGE_3);
 
         mService.handleUnlockUser(USER_0);
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_10));
+
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_0));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_10));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_10));
 
         mService.handleUnlockUser(USER_10);
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_0));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_10));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_2, USER_10));
-        assertNull(mService.getPackageInfoForTest(CALLING_PACKAGE_3, USER_10));
+
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_0));
+        assertNotNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_0));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_0));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_1, "s1", USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_2, "s1", USER_10));
+        assertNull(mService.getPackageShortcutForTest(CALLING_PACKAGE_3, "s1", USER_10));
     }
 
     public void testHandlePackageUpdate() {
-        setCaller(CALLING_PACKAGE_1, USER_0);
-        assertTrue(mManager.addDynamicShortcut(makeShortcut("s1")));
-
-        assertNotNull(mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0));
-        assertEquals(1, mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0).getVersionCode());
-
-        addPackage(CALLING_PACKAGE_1, CALLING_UID_1, 123);
-
-        mService.mPackageMonitor.onReceive(getTestContext(),
-                genPackageUpdateIntent("abc", USER_0));
-        assertEquals(1, mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0).getVersionCode());
-
-        mService.mPackageMonitor.onReceive(getTestContext(),
-                genPackageUpdateIntent("abc", USER_10));
-        assertEquals(1, mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0).getVersionCode());
-
-        mService.mPackageMonitor.onReceive(getTestContext(),
-                genPackageUpdateIntent(CALLING_PACKAGE_1, USER_0));
-        assertEquals(123, mService.getPackageInfoForTest(CALLING_PACKAGE_1, USER_0)
-                .getVersionCode());
+        // TODO: Make sure unshadow is called.
     }
 }
diff --git a/services/tests/servicestests/src/com/android/server/testutis/TestUtils.java b/services/tests/servicestests/src/com/android/server/testutis/TestUtils.java
index 52e8f37..d2a4484 100644
--- a/services/tests/servicestests/src/com/android/server/testutis/TestUtils.java
+++ b/services/tests/servicestests/src/com/android/server/testutis/TestUtils.java
@@ -24,19 +24,14 @@
     }
 
     public static void assertExpectException(Class<? extends Throwable> expectedExceptionType,
-            Runnable r) {
-        assertExpectException(expectedExceptionType, null, r);
-    }
-
-    public static void assertExpectException(Class<? extends Throwable> expectedExceptionType,
             String expectedExceptionMessageRegex, Runnable r) {
         try {
             r.run();
-            Assert.fail("Expected exception type " + expectedExceptionType.getClass().getName()
+            Assert.fail("Expected exception type " + expectedExceptionType.getName()
                     + " was not thrown");
         } catch (Throwable e) {
             Assert.assertTrue(
-                    "Expected exception type was " + expectedExceptionType.getClass().getName()
+                    "Expected exception type was " + expectedExceptionType.getName()
                     + " but caught " + e.getClass().getName(),
                     expectedExceptionType.isAssignableFrom(e.getClass()));
             if (expectedExceptionMessageRegex != null) {
diff --git a/tests/LocationTracker/src/com/android/locationtracker/SettingsActivity.java b/tests/LocationTracker/src/com/android/locationtracker/SettingsActivity.java
index cb77118..a169b18 100644
--- a/tests/LocationTracker/src/com/android/locationtracker/SettingsActivity.java
+++ b/tests/LocationTracker/src/com/android/locationtracker/SettingsActivity.java
@@ -1,35 +1,35 @@
-/*

- * Copyright (C) 2008 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.locationtracker;

-

-import android.os.Bundle;

-import android.preference.PreferenceActivity;

-

-/**

- * Settings preference screen for location tracker

- */

-public class SettingsActivity extends PreferenceActivity {

-

-    @Override

-    protected void onCreate(Bundle savedInstanceState) {

-        super.onCreate(savedInstanceState);

-

-        // Load the preferences from an XML resource

-        addPreferencesFromResource(R.xml.preferences);

-    }

-

-}

+/*
+ * Copyright (C) 2008 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.locationtracker;
+
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+
+/**
+ * Settings preference screen for location tracker
+ */
+public class SettingsActivity extends PreferenceActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // Load the preferences from an XML resource
+        addPreferencesFromResource(R.xml.preferences);
+    }
+
+}
diff --git a/tests/LocationTracker/src/com/android/locationtracker/data/TrackerListHelper.java b/tests/LocationTracker/src/com/android/locationtracker/data/TrackerListHelper.java
index 55d4d1e..adc39b3 100644
--- a/tests/LocationTracker/src/com/android/locationtracker/data/TrackerListHelper.java
+++ b/tests/LocationTracker/src/com/android/locationtracker/data/TrackerListHelper.java
@@ -1,75 +1,75 @@
-/*

- * Copyright (C) 2008 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.locationtracker.data;

-

-import android.app.ListActivity;

-import android.content.Context;

-import android.database.Cursor;

-import android.view.View;

-import android.widget.ResourceCursorAdapter;

-import android.widget.TextView;

-

-import com.android.locationtracker.R;

-

-/**

- * Used to bind Tracker data to a list view UI

- */

-public class TrackerListHelper extends TrackerDataHelper {

-

-    private ListActivity mActivity;

-

-    // sort entries by most recent first

-    private static final String SORT_ORDER = TrackerEntry.ID_COL + " DESC";

-

-    public TrackerListHelper(ListActivity activity) {

-        super(activity, TrackerDataHelper.CSV_FORMATTER);

-        mActivity = activity;

-    }

-

-    /**

-     * Helper method for binding the list activities UI to the tracker data

-     * Tracker data will be sorted in most-recent first order

-     * Will enable automatic UI changes as tracker data changes

-     *

-     * @param layout - layout to populate data

-     */

-    public void bindListUI(int layout) {

-        Cursor cursor = mActivity.managedQuery(TrackerProvider.CONTENT_URI,

-                TrackerEntry.ATTRIBUTES, null, null, SORT_ORDER);

-        // Used to map tracker entries from the database to views

-        TrackerAdapter adapter = new TrackerAdapter(mActivity, layout, cursor);

-        mActivity.setListAdapter(adapter);

-        cursor.setNotificationUri(mActivity.getContentResolver(),

-                TrackerProvider.CONTENT_URI);

-

-    }

-

-    private class TrackerAdapter extends ResourceCursorAdapter {

-

-        public TrackerAdapter(Context context, int layout, Cursor c) {

-            super(context, layout, c);

-        }

-

-        @Override

-        public void bindView(View view, Context context, Cursor cursor) {

-            final TextView v = (TextView) view

-                    .findViewById(R.id.entrylist_item);

-            String rowText = mFormatter.getOutput(TrackerEntry

-                    .createEntry(cursor));

-            v.setText(rowText);

-        }

-    }

-}

+/*
+ * Copyright (C) 2008 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.locationtracker.data;
+
+import android.app.ListActivity;
+import android.content.Context;
+import android.database.Cursor;
+import android.view.View;
+import android.widget.ResourceCursorAdapter;
+import android.widget.TextView;
+
+import com.android.locationtracker.R;
+
+/**
+ * Used to bind Tracker data to a list view UI
+ */
+public class TrackerListHelper extends TrackerDataHelper {
+
+    private ListActivity mActivity;
+
+    // sort entries by most recent first
+    private static final String SORT_ORDER = TrackerEntry.ID_COL + " DESC";
+
+    public TrackerListHelper(ListActivity activity) {
+        super(activity, TrackerDataHelper.CSV_FORMATTER);
+        mActivity = activity;
+    }
+
+    /**
+     * Helper method for binding the list activities UI to the tracker data
+     * Tracker data will be sorted in most-recent first order
+     * Will enable automatic UI changes as tracker data changes
+     *
+     * @param layout - layout to populate data
+     */
+    public void bindListUI(int layout) {
+        Cursor cursor = mActivity.managedQuery(TrackerProvider.CONTENT_URI,
+                TrackerEntry.ATTRIBUTES, null, null, SORT_ORDER);
+        // Used to map tracker entries from the database to views
+        TrackerAdapter adapter = new TrackerAdapter(mActivity, layout, cursor);
+        mActivity.setListAdapter(adapter);
+        cursor.setNotificationUri(mActivity.getContentResolver(),
+                TrackerProvider.CONTENT_URI);
+
+    }
+
+    private class TrackerAdapter extends ResourceCursorAdapter {
+
+        public TrackerAdapter(Context context, int layout, Cursor c) {
+            super(context, layout, c);
+        }
+
+        @Override
+        public void bindView(View view, Context context, Cursor cursor) {
+            final TextView v = (TextView) view
+                    .findViewById(R.id.entrylist_item);
+            String rowText = mFormatter.getOutput(TrackerEntry
+                    .createEntry(cursor));
+            v.setText(rowText);
+        }
+    }
+}
diff --git a/tests/VectorDrawableTest/res/drawable/btn_radio_on_to_off_bundle.xml b/tests/VectorDrawableTest/res/drawable/btn_radio_on_to_off_bundle.xml
new file mode 100644
index 0000000..4f05090
--- /dev/null
+++ b/tests/VectorDrawableTest/res/drawable/btn_radio_on_to_off_bundle.xml
@@ -0,0 +1,190 @@
+<?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.
+-->
+<animated-vector xmlns:aapt="http://schemas.android.com/aapt"
+                 xmlns:android="http://schemas.android.com/apk/res/android">
+    <aapt:attr name="android:drawable">
+        <vector
+                android:width="32dp"
+                android:viewportWidth="32"
+                android:height="32dp"
+                android:viewportHeight="32">
+            <group
+                    android:name="btn_radio_to_off_mtrl_0"
+                    android:translateX="16"
+                    android:translateY="16">
+                <group
+                        android:name="ring_outer">
+                    <path
+                            android:name="ring_outer_path"
+                            android:strokeColor="#FF000000"
+                            android:strokeWidth="2"
+                            android:pathData="M 0.0,-9.0 c 4.9705627482,0.0 9.0,4.0294372518 9.0,9.0 c 0.0,4.9705627482 -4.0294372518,9.0 -9.0,9.0 c -4.9705627482,0.0 -9.0,-4.0294372518 -9.0,-9.0 c 0.0,-4.9705627482 4.0294372518,-9.0 9.0,-9.0 Z"/>
+                </group>
+                <group
+                        android:name="dot_group">
+                    <path
+                            android:name="dot_path"
+                            android:pathData="M 0.0,-5.0 c -2.7619934082,0.0 -5.0,2.2380065918 -5.0,5.0 c 0.0,2.7619934082 2.2380065918,5.0 5.0,5.0 c 2.7619934082,0.0 5.0,-2.2380065918 5.0,-5.0 c 0.0,-2.7619934082 -2.2380065918,-5.0 -5.0,-5.0 Z"
+                            android:fillColor="#FF000000"/>
+                </group>
+            </group>
+        </vector>
+    </aapt:attr>
+    <target android:name="ring_outer">
+        <aapt:attr name="android:animation">
+            <set
+                    xmlns:android="http://schemas.android.com/apk/res/android" >
+                <set
+                        android:ordering="sequentially" >
+                    <objectAnimator
+                            android:duration="183"
+                            android:propertyName="scaleX"
+                            android:valueFrom="1.0"
+                            android:valueTo="0.9"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in" />
+                    <objectAnimator
+                            android:duration="16"
+                            android:propertyName="scaleX"
+                            android:valueFrom="0.9"
+                            android:valueTo="0.5"
+                            android:valueType="floatType"
+                            android:interpolator="@interpolator/btn_radio_to_off_mtrl_animation_interpolator_0" />
+                    <objectAnimator
+                            android:duration="300"
+                            android:propertyName="scaleX"
+                            android:valueFrom="0.5"
+                            android:valueTo="1.0"
+                            android:valueType="floatType"
+                            android:interpolator="@interpolator/btn_radio_to_off_mtrl_animation_interpolator_0" />
+                </set>
+                <set
+                        android:ordering="sequentially" >
+                    <objectAnimator
+                            android:duration="183"
+                            android:propertyName="scaleY"
+                            android:valueFrom="1.0"
+                            android:valueTo="0.9"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in" />
+                    <objectAnimator
+                            android:duration="16"
+                            android:propertyName="scaleY"
+                            android:valueFrom="0.9"
+                            android:valueTo="0.5"
+                            android:valueType="floatType"
+                            android:interpolator="@interpolator/btn_radio_to_off_mtrl_animation_interpolator_0" />
+                    <objectAnimator
+                            android:duration="300"
+                            android:propertyName="scaleY"
+                            android:valueFrom="0.5"
+                            android:valueTo="1.0"
+                            android:valueType="floatType"
+                            android:interpolator="@interpolator/btn_radio_to_off_mtrl_animation_interpolator_0" />
+                </set>
+            </set>
+        </aapt:attr>
+    </target>
+
+    <target android:name="ring_outer_path">
+        <aapt:attr name="android:animation">
+            <set
+                    xmlns:android="http://schemas.android.com/apk/res/android">
+                <set
+                        android:ordering="sequentially">
+                    <objectAnimator
+                            android:duration="183"
+                            android:propertyName="strokeWidth"
+                            android:valueFrom="2.0"
+                            android:valueTo="2.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="16"
+                            android:propertyName="strokeWidth"
+                            android:valueFrom="2.0"
+                            android:valueTo="18.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="300"
+                            android:propertyName="strokeWidth"
+                            android:valueFrom="18.0"
+                            android:valueTo="2.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                </set>
+
+            </set>
+        </aapt:attr>
+    </target>
+    <target
+            android:name="dot_group">
+        <aapt:attr name="android:animation">
+            <set
+                    xmlns:android="http://schemas.android.com/apk/res/android">
+                <set
+                        android:ordering="sequentially">
+                    <objectAnimator
+                            android:duration="183"
+                            android:propertyName="scaleX"
+                            android:valueFrom="1.0"
+                            android:valueTo="1.4"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="16"
+                            android:propertyName="scaleX"
+                            android:valueFrom="1.4"
+                            android:valueTo="0.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="300"
+                            android:propertyName="scaleX"
+                            android:valueFrom="0.0"
+                            android:valueTo="0.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                </set>
+                <set
+                        android:ordering="sequentially">
+                    <objectAnimator
+                            android:duration="183"
+                            android:propertyName="scaleY"
+                            android:valueFrom="1.0"
+                            android:valueTo="1.4"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="16"
+                            android:propertyName="scaleY"
+                            android:valueFrom="1.4"
+                            android:valueTo="0.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                    <objectAnimator
+                            android:duration="300"
+                            android:propertyName="scaleY"
+                            android:valueFrom="0.0"
+                            android:valueTo="0.0"
+                            android:valueType="floatType"
+                            android:interpolator="@android:interpolator/fast_out_slow_in"/>
+                </set>
+            </set>
+        </aapt:attr>
+    </target>
+</animated-vector>
\ No newline at end of file
diff --git a/tests/VectorDrawableTest/res/drawable/vector_drawable_linear_progress_bar.xml b/tests/VectorDrawableTest/res/drawable/vector_drawable_linear_progress_bar.xml
index 96fd70e..a6da114 100644
--- a/tests/VectorDrawableTest/res/drawable/vector_drawable_linear_progress_bar.xml
+++ b/tests/VectorDrawableTest/res/drawable/vector_drawable_linear_progress_bar.xml
@@ -17,7 +17,7 @@
     android:height="4dp"
     android:viewportHeight="4"
     android:viewportWidth="360"
-    android:width="360dp" >
+    android:width="36dp" >
 
     <group
         android:name="linear_indeterminate"
diff --git a/tests/VectorDrawableTest/res/interpolator/btn_radio_to_off_mtrl_animation_interpolator_0.xml b/tests/VectorDrawableTest/res/interpolator/btn_radio_to_off_mtrl_animation_interpolator_0.xml
new file mode 100644
index 0000000..d3728c4
--- /dev/null
+++ b/tests/VectorDrawableTest/res/interpolator/btn_radio_to_off_mtrl_animation_interpolator_0.xml
@@ -0,0 +1,19 @@
+<?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.
+-->
+
+<pathInterpolator
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:pathData="M 0.0,0.0 c 0.4,0.0 0.4,1.0 1.0,1.0" />
diff --git a/tests/VectorDrawableTest/src/com/android/test/dynamic/AnimatedVectorDrawableTest.java b/tests/VectorDrawableTest/src/com/android/test/dynamic/AnimatedVectorDrawableTest.java
index 087e68a..4026e5e 100644
--- a/tests/VectorDrawableTest/src/com/android/test/dynamic/AnimatedVectorDrawableTest.java
+++ b/tests/VectorDrawableTest/src/com/android/test/dynamic/AnimatedVectorDrawableTest.java
@@ -29,6 +29,7 @@
     private static final String LOGCAT = "AnimatedVectorDrawableTest";
 
     protected int[] icon = {
+            R.drawable.btn_radio_on_to_off_bundle,
             R.drawable.ic_rotate_2_portrait_v2_animation,
             R.drawable.ic_signal_airplane_v2_animation,
             R.drawable.ic_hourglass_animation,
@@ -43,33 +44,37 @@
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        final int[] layerTypes = {View.LAYER_TYPE_SOFTWARE, View.LAYER_TYPE_HARDWARE};
         super.onCreate(savedInstanceState);
 
         ScrollView scrollView = new ScrollView(this);
         GridLayout container = new GridLayout(this);
         scrollView.addView(container);
-        container.setColumnCount(1);
+        container.setColumnCount(2);
 
         for (int i = 0; i < icon.length; i++) {
-            Button button = new Button(this);
-            button.setWidth(400);
-            button.setHeight(400);
-            button.setBackgroundResource(icon[i]);
-            AnimatedVectorDrawable d = (AnimatedVectorDrawable) button.getBackground();
-            d.registerAnimationCallback(new Animatable2.AnimationCallback() {
-                @Override
-                public void onAnimationStart(Drawable drawable) {
-                    Log.v(LOGCAT, "Animator start");
-                }
+            for (int j = 0; j < layerTypes.length; j++) {
+                Button button = new Button(this);
+                button.setWidth(400);
+                button.setHeight(400);
+                button.setLayerType(layerTypes[j], null);
+                button.setBackgroundResource(icon[i]);
+                AnimatedVectorDrawable d = (AnimatedVectorDrawable) button.getBackground();
+                d.registerAnimationCallback(new Animatable2.AnimationCallback() {
+                    @Override
+                    public void onAnimationStart(Drawable drawable) {
+                        Log.v(LOGCAT, "Animator start");
+                    }
 
-                @Override
-                public void onAnimationEnd(Drawable drawable) {
+                    @Override
+                    public void onAnimationEnd(Drawable drawable) {
                         Log.v(LOGCAT, "Animator end");
-                }
-            });
+                    }
+                });
 
-            container.addView(button);
-            button.setOnClickListener(this);
+                container.addView(button);
+                button.setOnClickListener(this);
+            }
         }
 
         setContentView(scrollView);
diff --git a/tools/aapt2/integration-tests/StaticLibOne/Android.mk b/tools/aapt2/integration-tests/StaticLibOne/Android.mk
index d59dc60..0b7129a 100644
--- a/tools/aapt2/integration-tests/StaticLibOne/Android.mk
+++ b/tools/aapt2/integration-tests/StaticLibOne/Android.mk
@@ -22,4 +22,7 @@
 LOCAL_MODULE_TAGS := tests
 LOCAL_SRC_FILES := $(call all-java-files-under,src)
 LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+
+# We need this to compile the Java sources of AaptTestStaticLibTwo using javac.
+LOCAL_JAR_EXCLUDE_FILES := none
 include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
index 53adb41..5a6a00f 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
@@ -97,7 +97,6 @@
 
     @Override
     public void repositionChild(IWindow window, int left, int top, int right, int bottom,
-            int requestedWidth, int requestedHeight,
             long deferTransactionUntilFrame, Rect outFrame) {
         // pass for now.
         return;
diff --git a/wifi/java/android/net/wifi/WifiInfo.java b/wifi/java/android/net/wifi/WifiInfo.java
index 9f8af6e..8d5efba 100644
--- a/wifi/java/android/net/wifi/WifiInfo.java
+++ b/wifi/java/android/net/wifi/WifiInfo.java
@@ -320,7 +320,8 @@
             if (!TextUtils.isEmpty(unicode)) {
                 return "\"" + unicode + "\"";
             } else {
-                return mWifiSsid.getHexString();
+                String hex = mWifiSsid.getHexString();
+                return (hex != null) ? hex : WifiSsid.NONE;
             }
         }
         return WifiSsid.NONE;
diff --git a/wifi/java/android/net/wifi/WifiScanner.java b/wifi/java/android/net/wifi/WifiScanner.java
index 508bdff..73ddbbc 100644
--- a/wifi/java/android/net/wifi/WifiScanner.java
+++ b/wifi/java/android/net/wifi/WifiScanner.java
@@ -27,6 +27,7 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.os.RemoteException;
+import android.os.WorkSource;
 import android.util.Log;
 import android.util.SparseArray;
 
@@ -160,6 +161,11 @@
      */
     public static final int REPORT_EVENT_NO_BATCH = (1 << 2);
 
+
+    /** {@hide} */
+    public static final String SCAN_PARAMS_SCAN_SETTINGS_KEY = "ScanSettings";
+    /** {@hide} */
+    public static final String SCAN_PARAMS_WORK_SOURCE_KEY = "WorkSource";
     /**
      * scan configuration parameters to be sent to {@link #startBackgroundScan}
      */
@@ -661,12 +667,29 @@
      *                 scans should also not share this object.
      */
     public void startBackgroundScan(ScanSettings settings, ScanListener listener) {
+        startBackgroundScan(settings, listener, null);
+    }
+
+    /** start wifi scan in background
+     * @param settings specifies various parameters for the scan; for more information look at
+     * {@link ScanSettings}
+     * @param workSource WorkSource to blame for power usage
+     * @param listener specifies the object to report events to. This object is also treated as a
+     *                 key for this scan, and must also be specified to cancel the scan. Multiple
+     *                 scans should also not share this object.
+     */
+    public void startBackgroundScan(ScanSettings settings, ScanListener listener,
+            WorkSource workSource) {
         Preconditions.checkNotNull(listener, "listener cannot be null");
         int key = addListener(listener);
         if (key == INVALID_KEY) return;
         validateChannel();
-        sAsyncChannel.sendMessage(CMD_START_BACKGROUND_SCAN, 0, key, settings);
+        Bundle scanParams = new Bundle();
+        scanParams.putParcelable(SCAN_PARAMS_SCAN_SETTINGS_KEY, settings);
+        scanParams.putParcelable(SCAN_PARAMS_WORK_SOURCE_KEY, workSource);
+        sAsyncChannel.sendMessage(CMD_START_BACKGROUND_SCAN, 0, key, scanParams);
     }
+
     /**
      * stop an ongoing wifi scan
      * @param listener specifies which scan to cancel; must be same object as passed in {@link
@@ -698,11 +721,27 @@
      *                 scans should also not share this object.
      */
     public void startScan(ScanSettings settings, ScanListener listener) {
+        startScan(settings, listener, null);
+    }
+
+    /**
+     * starts a single scan and reports results asynchronously
+     * @param settings specifies various parameters for the scan; for more information look at
+     * {@link ScanSettings}
+     * @param workSource WorkSource to blame for power usage
+     * @param listener specifies the object to report events to. This object is also treated as a
+     *                 key for this scan, and must also be specified to cancel the scan. Multiple
+     *                 scans should also not share this object.
+     */
+    public void startScan(ScanSettings settings, ScanListener listener, WorkSource workSource) {
         Preconditions.checkNotNull(listener, "listener cannot be null");
         int key = addListener(listener);
         if (key == INVALID_KEY) return;
         validateChannel();
-        sAsyncChannel.sendMessage(CMD_START_SINGLE_SCAN, 0, key, settings);
+        Bundle scanParams = new Bundle();
+        scanParams.putParcelable(SCAN_PARAMS_SCAN_SETTINGS_KEY, settings);
+        scanParams.putParcelable(SCAN_PARAMS_WORK_SOURCE_KEY, workSource);
+        sAsyncChannel.sendMessage(CMD_START_SINGLE_SCAN, 0, key, scanParams);
     }
 
     /**
@@ -721,7 +760,6 @@
     private void startPnoScan(ScanSettings scanSettings, PnoSettings pnoSettings, int key) {
         // Bundle up both the settings and send it across.
         Bundle pnoParams = new Bundle();
-        if (pnoParams == null) return;
         // Set the PNO scan flag.
         scanSettings.isPnoScan = true;
         pnoParams.putParcelable(PNO_PARAMS_SCAN_SETTINGS_KEY, scanSettings);
diff --git a/wifi/java/android/net/wifi/WifiSsid.java b/wifi/java/android/net/wifi/WifiSsid.java
index f8ba95d..c53cd3c 100644
--- a/wifi/java/android/net/wifi/WifiSsid.java
+++ b/wifi/java/android/net/wifi/WifiSsid.java
@@ -205,7 +205,7 @@
         for (int i = 0; i < octets.size(); i++) {
             out += String.format(Locale.US, "%02x", ssidbytes[i]);
         }
-        return out;
+        return (octets.size() > 0) ? out : null;
     }
 
     /** Implement the Parcelable interface {@hide} */