Merge "Initial implementation of autofill partitioning." into oc-dev
diff --git a/Android.mk b/Android.mk
index 634272b..e27aa30 100644
--- a/Android.mk
+++ b/Android.mk
@@ -320,6 +320,8 @@
 	core/java/android/service/wallpaper/IWallpaperService.aidl \
 	core/java/android/service/chooser/IChooserTargetService.aidl \
 	core/java/android/service/chooser/IChooserTargetResult.aidl \
+	core/java/android/service/resolver/IResolverRankerService.aidl \
+	core/java/android/service/resolver/IResolverRankerResult.aidl \
 	core/java/android/text/ITextClassificationService.aidl \
 	core/java/android/view/accessibility/IAccessibilityInteractionConnection.aidl\
 	core/java/android/view/accessibility/IAccessibilityInteractionConnectionCallback.aidl\
@@ -367,7 +369,6 @@
 	core/java/com/android/internal/appwidget/IAppWidgetHost.aidl \
 	core/java/com/android/internal/backup/IBackupTransport.aidl \
 	core/java/com/android/internal/backup/IObbBackupService.aidl \
-	core/java/com/android/internal/font/IFontManager.aidl \
 	core/java/com/android/internal/inputmethod/IInputContentUriToken.aidl \
 	core/java/com/android/internal/policy/IKeyguardDrawnCallback.aidl \
 	core/java/com/android/internal/policy/IKeyguardDismissCallback.aidl \
@@ -729,6 +730,7 @@
 	frameworks/base/core/java/android/service/notification/SnoozeCriterion.aidl \
 	frameworks/base/core/java/android/service/notification/StatusBarNotification.aidl \
 	frameworks/base/core/java/android/service/chooser/ChooserTarget.aidl \
+	frameworks/base/core/java/android/service/resolver/ResolverTarget.aidl \
 	frameworks/base/core/java/android/speech/tts/Voice.aidl \
 	frameworks/base/core/java/android/app/usage/CacheQuotaHint.aidl \
 	frameworks/base/core/java/android/app/usage/ExternalStorageStats.aidl \
@@ -1461,8 +1463,7 @@
 LOCAL_SRC_FILES := \
     $(call all-proto-files-under, core/proto) \
     $(call all-proto-files-under, libs/incident/proto)
-LOCAL_SHARED_LIBRARIES := libprotobuf-cpp-full
-include $(BUILD_SHARED_LIBRARY)
+include $(BUILD_STATIC_LIBRARY)
 
 # ====  c++ proto host library  ==============================
 include $(CLEAR_VARS)
diff --git a/api/current.txt b/api/current.txt
index 5926e98..e640e30 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -8889,7 +8889,6 @@
     field public static final java.lang.String DOWNLOAD_SERVICE = "download";
     field public static final java.lang.String DROPBOX_SERVICE = "dropbox";
     field public static final java.lang.String FINGERPRINT_SERVICE = "fingerprint";
-    field public static final java.lang.String FONT_SERVICE = "font";
     field public static final java.lang.String HARDWARE_PROPERTIES_SERVICE = "hardware_properties";
     field public static final java.lang.String INPUT_METHOD_SERVICE = "input_method";
     field public static final java.lang.String INPUT_SERVICE = "input";
@@ -13243,7 +13242,7 @@
     method public void setFilterBitmap(boolean);
     method public void setFlags(int);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method public void setHinting(int);
     method public void setLetterSpacing(float);
     method public void setLinearText(boolean);
@@ -13777,8 +13776,8 @@
     method public static android.graphics.Typeface.Builder obtain();
     method public void recycle();
     method public void reset();
-    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String);
-    method public android.graphics.Typeface.Builder setFontVariationSettings(android.text.FontConfig.Axis[]);
+    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public android.graphics.Typeface.Builder setFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
     method public android.graphics.Typeface.Builder setItalic(int);
     method public android.graphics.Typeface.Builder setSourceFromAsset(android.content.res.AssetManager, java.lang.String);
     method public android.graphics.Typeface.Builder setSourceFromFile(java.io.File);
@@ -14388,6 +14387,21 @@
     field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontRequest> CREATOR;
   }
 
+  public final class FontVariationAxis implements android.os.Parcelable {
+    ctor public FontVariationAxis(java.lang.String, float) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public int describeContents();
+    method public static android.graphics.fonts.FontVariationAxis[] fromFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public float getStyleValue();
+    method public java.lang.String getTag();
+    method public static java.lang.String toFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontVariationAxis> CREATOR;
+  }
+
+  public static class FontVariationAxis.InvalidFormatException extends java.lang.Exception {
+    ctor public FontVariationAxis.InvalidFormatException(java.lang.String);
+  }
+
 }
 
 package android.graphics.pdf {
@@ -24542,85 +24556,6 @@
     field public static final java.lang.String EXTRA_WATCH_NEXT_PROGRAM_ID = "android.media.tv.extra.WATCH_NEXT_PROGRAM_ID";
   }
 
-  public static abstract interface TvContract.BasePreviewProgramColumns implements android.media.tv.TvContract.BaseProgramColumns {
-    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
-    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
-    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
-    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
-    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
-    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
-    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
-    field public static final java.lang.String COLUMN_AUTHOR = "author";
-    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
-    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
-    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
-    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
-    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
-    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
-    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
-    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
-    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
-    field public static final java.lang.String COLUMN_LIVE = "live";
-    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
-    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
-    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
-    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
-    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
-    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
-    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
-    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
-    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
-    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
-    field public static final java.lang.String COLUMN_TYPE = "type";
-    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
-    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
-    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
-    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
-    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
-    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
-    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
-    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
-    field public static final int TYPE_ALBUM = 8; // 0x8
-    field public static final int TYPE_ARTIST = 9; // 0x9
-    field public static final int TYPE_CHANNEL = 6; // 0x6
-    field public static final int TYPE_CLIP = 4; // 0x4
-    field public static final int TYPE_EVENT = 5; // 0x5
-    field public static final int TYPE_MOVIE = 0; // 0x0
-    field public static final int TYPE_PLAYLIST = 10; // 0xa
-    field public static final int TYPE_STATION = 11; // 0xb
-    field public static final int TYPE_TRACK = 7; // 0x7
-    field public static final int TYPE_TV_EPISODE = 3; // 0x3
-    field public static final int TYPE_TV_SEASON = 2; // 0x2
-    field public static final int TYPE_TV_SERIES = 1; // 0x1
-  }
-
-  public static abstract interface TvContract.BaseProgramColumns implements android.media.tv.TvContract.BaseTvColumns {
-    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
-    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
-    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
-    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
-    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
-    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
-    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
-    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
-    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
-    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
-    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
-    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
-    field public static final java.lang.String COLUMN_TITLE = "title";
-    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
-    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
-    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
-  }
-
   public static abstract interface TvContract.BaseTvColumns implements android.provider.BaseColumns {
     field public static final java.lang.String COLUMN_PACKAGE_NAME = "package_name";
   }
@@ -24707,22 +24642,116 @@
     field public static final java.lang.String CONTENT_DIRECTORY = "logo";
   }
 
-  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WEIGHT = "weight";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/preview_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/preview_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
   }
 
-  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
     field public static final deprecated java.lang.String COLUMN_EPISODE_NUMBER = "episode_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_PROHIBITED = "recording_prohibited";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
     field public static final deprecated java.lang.String COLUMN_SEASON_NUMBER = "season_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/program";
     field public static final android.net.Uri CONTENT_URI;
@@ -24751,28 +24780,122 @@
     field public static final java.lang.String TRAVEL = "TRAVEL";
   }
 
-  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
     field public static final java.lang.String COLUMN_INPUT_ID = "input_id";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_DATA_BYTES = "recording_data_bytes";
     field public static final java.lang.String COLUMN_RECORDING_DATA_URI = "recording_data_uri";
     field public static final java.lang.String COLUMN_RECORDING_DURATION_MILLIS = "recording_duration_millis";
     field public static final java.lang.String COLUMN_RECORDING_EXPIRE_TIME_UTC_MILLIS = "recording_expire_time_utc_millis";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/recorded_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/recorded_program";
     field public static final android.net.Uri CONTENT_URI;
   }
 
-  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BaseTvColumns {
     ctor public TvContract.WatchNextPrograms();
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
     field public static final java.lang.String COLUMN_LAST_ENGAGEMENT_TIME_UTC_MILLIS = "last_engagement_time_utc_millis";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WATCH_NEXT_TYPE = "watch_next_type";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/watch_next_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/watch_next_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
     field public static final int WATCH_NEXT_TYPE_CONTINUE = 0; // 0x0
     field public static final int WATCH_NEXT_TYPE_NEW = 2; // 0x2
     field public static final int WATCH_NEXT_TYPE_NEXT = 1; // 0x1
@@ -41052,65 +41175,6 @@
     method public android.text.Editable newEditable(java.lang.CharSequence);
   }
 
-  public final class FontConfig implements android.os.Parcelable {
-    ctor public FontConfig(android.text.FontConfig.Family[], android.text.FontConfig.Alias[]);
-    method public int describeContents();
-    method public android.text.FontConfig.Alias[] getAliases();
-    method public android.text.FontConfig.Family[] getFamilies();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig> CREATOR;
-  }
-
-  public static final class FontConfig.Alias implements android.os.Parcelable {
-    ctor public FontConfig.Alias(java.lang.String, java.lang.String, int);
-    method public int describeContents();
-    method public java.lang.String getName();
-    method public java.lang.String getToName();
-    method public int getWeight();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Alias> CREATOR;
-  }
-
-  public static final class FontConfig.Axis implements android.os.Parcelable {
-    ctor public FontConfig.Axis(int, float);
-    ctor public FontConfig.Axis(java.lang.String, float);
-    method public int describeContents();
-    method public float getStyleValue();
-    method public int getTag();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Axis> CREATOR;
-  }
-
-  public static final class FontConfig.Family implements android.os.Parcelable {
-    ctor public FontConfig.Family(java.lang.String, android.text.FontConfig.Font[], java.lang.String, int);
-    method public int describeContents();
-    method public android.text.FontConfig.Font[] getFonts();
-    method public java.lang.String getLanguage();
-    method public java.lang.String getName();
-    method public int getVariant();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Family> CREATOR;
-    field public static final int VARIANT_COMPACT = 1; // 0x1
-    field public static final int VARIANT_DEFAULT = 0; // 0x0
-    field public static final int VARIANT_ELEGANT = 2; // 0x2
-  }
-
-  public static final class FontConfig.Font implements android.os.Parcelable {
-    method public int describeContents();
-    method public android.text.FontConfig.Axis[] getAxes();
-    method public java.lang.String getFontName();
-    method public int getTtcIndex();
-    method public android.net.Uri getUri();
-    method public int getWeight();
-    method public boolean isItalic();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Font> CREATOR;
-  }
-
-  public final class FontManager {
-    method public android.text.FontConfig getSystemFonts();
-  }
-
   public abstract interface GetChars implements java.lang.CharSequence {
     method public abstract void getChars(int, int, char[], int);
   }
@@ -41258,6 +41322,8 @@
     field public static final int HYPHENATION_FREQUENCY_FULL = 2; // 0x2
     field public static final int HYPHENATION_FREQUENCY_NONE = 0; // 0x0
     field public static final int HYPHENATION_FREQUENCY_NORMAL = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_INTER_WORD = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_NONE = 0; // 0x0
   }
 
   public static final class Layout.Alignment extends java.lang.Enum {
@@ -41459,7 +41525,7 @@
     method public android.text.StaticLayout.Builder setHyphenationFrequency(int);
     method public android.text.StaticLayout.Builder setIncludePad(boolean);
     method public android.text.StaticLayout.Builder setIndents(int[], int[]);
-    method public android.text.StaticLayout.Builder setJustify(boolean);
+    method public android.text.StaticLayout.Builder setJustificationMode(int);
     method public android.text.StaticLayout.Builder setLineSpacing(float, float);
     method public android.text.StaticLayout.Builder setMaxLines(int);
     method public android.text.StaticLayout.Builder setText(java.lang.CharSequence);
@@ -48663,7 +48729,7 @@
     method public abstract boolean getOffscreenPreRaster();
     method public abstract deprecated android.webkit.WebSettings.PluginState getPluginState();
     method public abstract java.lang.String getSansSerifFontFamily();
-    method public abstract boolean getSaveFormData();
+    method public abstract deprecated boolean getSaveFormData();
     method public abstract deprecated boolean getSavePassword();
     method public abstract java.lang.String getSerifFontFamily();
     method public abstract java.lang.String getStandardFontFamily();
@@ -48712,7 +48778,7 @@
     method public abstract deprecated void setPluginState(android.webkit.WebSettings.PluginState);
     method public abstract deprecated void setRenderPriority(android.webkit.WebSettings.RenderPriority);
     method public abstract void setSansSerifFontFamily(java.lang.String);
-    method public abstract void setSaveFormData(boolean);
+    method public abstract deprecated void setSaveFormData(boolean);
     method public abstract deprecated void setSavePassword(boolean);
     method public abstract void setSerifFontFamily(java.lang.String);
     method public abstract void setStandardFontFamily(java.lang.String);
@@ -49003,12 +49069,12 @@
 
   public abstract class WebViewDatabase {
     ctor public WebViewDatabase();
-    method public abstract void clearFormData();
+    method public abstract deprecated void clearFormData();
     method public abstract void clearHttpAuthUsernamePassword();
     method public abstract deprecated void clearUsernamePassword();
     method public abstract java.lang.String[] getHttpAuthUsernamePassword(java.lang.String, java.lang.String);
     method public static android.webkit.WebViewDatabase getInstance(android.content.Context);
-    method public abstract boolean hasFormData();
+    method public abstract deprecated boolean hasFormData();
     method public abstract boolean hasHttpAuthUsernamePassword();
     method public abstract deprecated boolean hasUsernamePassword();
     method public abstract void setHttpAuthUsernamePassword(java.lang.String, java.lang.String, java.lang.String, java.lang.String);
@@ -51269,7 +51335,7 @@
     method public boolean getIncludeFontPadding();
     method public android.os.Bundle getInputExtras(boolean);
     method public int getInputType();
-    method public boolean getJustify();
+    method public int getJustificationMode();
     method public final android.text.method.KeyListener getKeyListener();
     method public final android.text.Layout getLayout();
     method public float getLetterSpacing();
@@ -51364,7 +51430,7 @@
     method public void setExtractedText(android.view.inputmethod.ExtractedText);
     method public void setFilters(android.text.InputFilter[]);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method protected boolean setFrame(int, int, int, int);
     method public void setFreezesText(boolean);
     method public void setGravity(int);
@@ -51382,7 +51448,7 @@
     method public void setIncludeFontPadding(boolean);
     method public void setInputExtras(int) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
     method public void setInputType(int);
-    method public void setJustify(boolean);
+    method public void setJustificationMode(int);
     method public void setKeyListener(android.text.method.KeyListener);
     method public void setLetterSpacing(float);
     method public void setLineSpacing(float, float);
diff --git a/api/system-current.txt b/api/system-current.txt
index a5f10cd..383b332 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -53,6 +53,7 @@
     field public static final java.lang.String BIND_PRINT_SERVICE = "android.permission.BIND_PRINT_SERVICE";
     field public static final java.lang.String BIND_QUICK_SETTINGS_TILE = "android.permission.BIND_QUICK_SETTINGS_TILE";
     field public static final java.lang.String BIND_REMOTEVIEWS = "android.permission.BIND_REMOTEVIEWS";
+    field public static final java.lang.String BIND_RESOLVER_RANKER_SERVICE = "android.permission.BIND_RESOLVER_RANKER_SERVICE";
     field public static final java.lang.String BIND_RUNTIME_PERMISSION_PRESENTER_SERVICE = "android.permission.BIND_RUNTIME_PERMISSION_PRESENTER_SERVICE";
     field public static final java.lang.String BIND_SCREENING_SERVICE = "android.permission.BIND_SCREENING_SERVICE";
     field public static final java.lang.String BIND_TELECOM_CONNECTION_SERVICE = "android.permission.BIND_TELECOM_CONNECTION_SERVICE";
@@ -9386,7 +9387,6 @@
     field public static final java.lang.String DOWNLOAD_SERVICE = "download";
     field public static final java.lang.String DROPBOX_SERVICE = "dropbox";
     field public static final java.lang.String FINGERPRINT_SERVICE = "fingerprint";
-    field public static final java.lang.String FONT_SERVICE = "font";
     field public static final java.lang.String HARDWARE_PROPERTIES_SERVICE = "hardware_properties";
     field public static final java.lang.String HDMI_CONTROL_SERVICE = "hdmi_control";
     field public static final java.lang.String INPUT_METHOD_SERVICE = "input_method";
@@ -13975,7 +13975,7 @@
     method public void setFilterBitmap(boolean);
     method public void setFlags(int);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method public void setHinting(int);
     method public void setLetterSpacing(float);
     method public void setLinearText(boolean);
@@ -14509,8 +14509,8 @@
     method public static android.graphics.Typeface.Builder obtain();
     method public void recycle();
     method public void reset();
-    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String);
-    method public android.graphics.Typeface.Builder setFontVariationSettings(android.text.FontConfig.Axis[]);
+    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public android.graphics.Typeface.Builder setFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
     method public android.graphics.Typeface.Builder setItalic(int);
     method public android.graphics.Typeface.Builder setSourceFromAsset(android.content.res.AssetManager, java.lang.String);
     method public android.graphics.Typeface.Builder setSourceFromFile(java.io.File);
@@ -15120,6 +15120,21 @@
     field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontRequest> CREATOR;
   }
 
+  public final class FontVariationAxis implements android.os.Parcelable {
+    ctor public FontVariationAxis(java.lang.String, float) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public int describeContents();
+    method public static android.graphics.fonts.FontVariationAxis[] fromFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public float getStyleValue();
+    method public java.lang.String getTag();
+    method public static java.lang.String toFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontVariationAxis> CREATOR;
+  }
+
+  public static class FontVariationAxis.InvalidFormatException extends java.lang.Exception {
+    ctor public FontVariationAxis.InvalidFormatException(java.lang.String);
+  }
+
 }
 
 package android.graphics.pdf {
@@ -26487,85 +26502,6 @@
     field public static final java.lang.String METHOD_GET_COLUMNS = "get_columns";
   }
 
-  public static abstract interface TvContract.BasePreviewProgramColumns implements android.media.tv.TvContract.BaseProgramColumns {
-    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
-    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
-    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
-    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
-    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
-    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
-    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
-    field public static final java.lang.String COLUMN_AUTHOR = "author";
-    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
-    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
-    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
-    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
-    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
-    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
-    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
-    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
-    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
-    field public static final java.lang.String COLUMN_LIVE = "live";
-    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
-    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
-    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
-    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
-    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
-    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
-    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
-    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
-    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
-    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
-    field public static final java.lang.String COLUMN_TYPE = "type";
-    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
-    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
-    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
-    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
-    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
-    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
-    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
-    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
-    field public static final int TYPE_ALBUM = 8; // 0x8
-    field public static final int TYPE_ARTIST = 9; // 0x9
-    field public static final int TYPE_CHANNEL = 6; // 0x6
-    field public static final int TYPE_CLIP = 4; // 0x4
-    field public static final int TYPE_EVENT = 5; // 0x5
-    field public static final int TYPE_MOVIE = 0; // 0x0
-    field public static final int TYPE_PLAYLIST = 10; // 0xa
-    field public static final int TYPE_STATION = 11; // 0xb
-    field public static final int TYPE_TRACK = 7; // 0x7
-    field public static final int TYPE_TV_EPISODE = 3; // 0x3
-    field public static final int TYPE_TV_SEASON = 2; // 0x2
-    field public static final int TYPE_TV_SERIES = 1; // 0x1
-  }
-
-  public static abstract interface TvContract.BaseProgramColumns implements android.media.tv.TvContract.BaseTvColumns {
-    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
-    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
-    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
-    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
-    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
-    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
-    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
-    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
-    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
-    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
-    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
-    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
-    field public static final java.lang.String COLUMN_TITLE = "title";
-    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
-    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
-    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
-  }
-
   public static abstract interface TvContract.BaseTvColumns implements android.provider.BaseColumns {
     field public static final java.lang.String COLUMN_PACKAGE_NAME = "package_name";
   }
@@ -26653,22 +26589,116 @@
     field public static final java.lang.String CONTENT_DIRECTORY = "logo";
   }
 
-  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WEIGHT = "weight";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/preview_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/preview_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
   }
 
-  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
     field public static final deprecated java.lang.String COLUMN_EPISODE_NUMBER = "episode_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_PROHIBITED = "recording_prohibited";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
     field public static final deprecated java.lang.String COLUMN_SEASON_NUMBER = "season_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/program";
     field public static final android.net.Uri CONTENT_URI;
@@ -26697,28 +26727,122 @@
     field public static final java.lang.String TRAVEL = "TRAVEL";
   }
 
-  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
     field public static final java.lang.String COLUMN_INPUT_ID = "input_id";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_DATA_BYTES = "recording_data_bytes";
     field public static final java.lang.String COLUMN_RECORDING_DATA_URI = "recording_data_uri";
     field public static final java.lang.String COLUMN_RECORDING_DURATION_MILLIS = "recording_duration_millis";
     field public static final java.lang.String COLUMN_RECORDING_EXPIRE_TIME_UTC_MILLIS = "recording_expire_time_utc_millis";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/recorded_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/recorded_program";
     field public static final android.net.Uri CONTENT_URI;
   }
 
-  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BaseTvColumns {
     ctor public TvContract.WatchNextPrograms();
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
     field public static final java.lang.String COLUMN_LAST_ENGAGEMENT_TIME_UTC_MILLIS = "last_engagement_time_utc_millis";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WATCH_NEXT_TYPE = "watch_next_type";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/watch_next_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/watch_next_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
     field public static final int WATCH_NEXT_TYPE_CONTINUE = 0; // 0x0
     field public static final int WATCH_NEXT_TYPE_NEW = 2; // 0x2
     field public static final int WATCH_NEXT_TYPE_NEXT = 1; // 0x1
@@ -40465,6 +40589,36 @@
 
 }
 
+package android.service.resolver {
+
+  public abstract class ResolverRankerService extends android.app.Service {
+    ctor public ResolverRankerService();
+    method public android.os.IBinder onBind(android.content.Intent);
+    method public void onPredictSharingProbabilities(java.util.List<android.service.resolver.ResolverTarget>);
+    method public void onTrainRankingModel(java.util.List<android.service.resolver.ResolverTarget>, int);
+    field public static final java.lang.String BIND_PERMISSION = "android.permission.BIND_RESOLVER_RANKER_SERVICE";
+    field public static final java.lang.String SERVICE_INTERFACE = "android.service.resolver.ResolverRankerService";
+  }
+
+  public final class ResolverTarget implements android.os.Parcelable {
+    ctor public ResolverTarget();
+    method public int describeContents();
+    method public float getChooserScore();
+    method public float getLaunchScore();
+    method public float getRecencyScore();
+    method public float getSelectProbability();
+    method public float getTimeSpentScore();
+    method public void setChooserScore(float);
+    method public void setLaunchScore(float);
+    method public void setRecencyScore(float);
+    method public void setSelectProbability(float);
+    method public void setTimeSpentScore(float);
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.service.resolver.ResolverTarget> CREATOR;
+  }
+
+}
+
 package android.service.restrictions {
 
   public abstract class RestrictionsReceiver extends android.content.BroadcastReceiver {
@@ -44514,65 +44668,6 @@
     method public android.text.Editable newEditable(java.lang.CharSequence);
   }
 
-  public final class FontConfig implements android.os.Parcelable {
-    ctor public FontConfig(android.text.FontConfig.Family[], android.text.FontConfig.Alias[]);
-    method public int describeContents();
-    method public android.text.FontConfig.Alias[] getAliases();
-    method public android.text.FontConfig.Family[] getFamilies();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig> CREATOR;
-  }
-
-  public static final class FontConfig.Alias implements android.os.Parcelable {
-    ctor public FontConfig.Alias(java.lang.String, java.lang.String, int);
-    method public int describeContents();
-    method public java.lang.String getName();
-    method public java.lang.String getToName();
-    method public int getWeight();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Alias> CREATOR;
-  }
-
-  public static final class FontConfig.Axis implements android.os.Parcelable {
-    ctor public FontConfig.Axis(int, float);
-    ctor public FontConfig.Axis(java.lang.String, float);
-    method public int describeContents();
-    method public float getStyleValue();
-    method public int getTag();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Axis> CREATOR;
-  }
-
-  public static final class FontConfig.Family implements android.os.Parcelable {
-    ctor public FontConfig.Family(java.lang.String, android.text.FontConfig.Font[], java.lang.String, int);
-    method public int describeContents();
-    method public android.text.FontConfig.Font[] getFonts();
-    method public java.lang.String getLanguage();
-    method public java.lang.String getName();
-    method public int getVariant();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Family> CREATOR;
-    field public static final int VARIANT_COMPACT = 1; // 0x1
-    field public static final int VARIANT_DEFAULT = 0; // 0x0
-    field public static final int VARIANT_ELEGANT = 2; // 0x2
-  }
-
-  public static final class FontConfig.Font implements android.os.Parcelable {
-    method public int describeContents();
-    method public android.text.FontConfig.Axis[] getAxes();
-    method public java.lang.String getFontName();
-    method public int getTtcIndex();
-    method public android.net.Uri getUri();
-    method public int getWeight();
-    method public boolean isItalic();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Font> CREATOR;
-  }
-
-  public final class FontManager {
-    method public android.text.FontConfig getSystemFonts();
-  }
-
   public abstract interface GetChars implements java.lang.CharSequence {
     method public abstract void getChars(int, int, char[], int);
   }
@@ -44720,6 +44815,8 @@
     field public static final int HYPHENATION_FREQUENCY_FULL = 2; // 0x2
     field public static final int HYPHENATION_FREQUENCY_NONE = 0; // 0x0
     field public static final int HYPHENATION_FREQUENCY_NORMAL = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_INTER_WORD = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_NONE = 0; // 0x0
   }
 
   public static final class Layout.Alignment extends java.lang.Enum {
@@ -44921,7 +45018,7 @@
     method public android.text.StaticLayout.Builder setHyphenationFrequency(int);
     method public android.text.StaticLayout.Builder setIncludePad(boolean);
     method public android.text.StaticLayout.Builder setIndents(int[], int[]);
-    method public android.text.StaticLayout.Builder setJustify(boolean);
+    method public android.text.StaticLayout.Builder setJustificationMode(int);
     method public android.text.StaticLayout.Builder setLineSpacing(float, float);
     method public android.text.StaticLayout.Builder setMaxLines(int);
     method public android.text.StaticLayout.Builder setText(java.lang.CharSequence);
@@ -52211,7 +52308,7 @@
     method public abstract deprecated android.webkit.WebSettings.PluginState getPluginState();
     method public abstract deprecated boolean getPluginsEnabled();
     method public abstract java.lang.String getSansSerifFontFamily();
-    method public abstract boolean getSaveFormData();
+    method public abstract deprecated boolean getSaveFormData();
     method public abstract deprecated boolean getSavePassword();
     method public abstract java.lang.String getSerifFontFamily();
     method public abstract java.lang.String getStandardFontFamily();
@@ -52266,7 +52363,7 @@
     method public abstract deprecated void setPluginsEnabled(boolean);
     method public abstract deprecated void setRenderPriority(android.webkit.WebSettings.RenderPriority);
     method public abstract void setSansSerifFontFamily(java.lang.String);
-    method public abstract void setSaveFormData(boolean);
+    method public abstract deprecated void setSaveFormData(boolean);
     method public abstract deprecated void setSavePassword(boolean);
     method public abstract void setSerifFontFamily(java.lang.String);
     method public abstract void setStandardFontFamily(java.lang.String);
@@ -52594,12 +52691,12 @@
 
   public abstract class WebViewDatabase {
     ctor public WebViewDatabase();
-    method public abstract void clearFormData();
+    method public abstract deprecated void clearFormData();
     method public abstract void clearHttpAuthUsernamePassword();
     method public abstract deprecated void clearUsernamePassword();
     method public abstract java.lang.String[] getHttpAuthUsernamePassword(java.lang.String, java.lang.String);
     method public static android.webkit.WebViewDatabase getInstance(android.content.Context);
-    method public abstract boolean hasFormData();
+    method public abstract deprecated boolean hasFormData();
     method public abstract boolean hasHttpAuthUsernamePassword();
     method public abstract deprecated boolean hasUsernamePassword();
     method public abstract void setHttpAuthUsernamePassword(java.lang.String, java.lang.String, java.lang.String, java.lang.String);
@@ -55099,7 +55196,7 @@
     method public boolean getIncludeFontPadding();
     method public android.os.Bundle getInputExtras(boolean);
     method public int getInputType();
-    method public boolean getJustify();
+    method public int getJustificationMode();
     method public final android.text.method.KeyListener getKeyListener();
     method public final android.text.Layout getLayout();
     method public float getLetterSpacing();
@@ -55194,7 +55291,7 @@
     method public void setExtractedText(android.view.inputmethod.ExtractedText);
     method public void setFilters(android.text.InputFilter[]);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method protected boolean setFrame(int, int, int, int);
     method public void setFreezesText(boolean);
     method public void setGravity(int);
@@ -55212,7 +55309,7 @@
     method public void setIncludeFontPadding(boolean);
     method public void setInputExtras(int) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
     method public void setInputType(int);
-    method public void setJustify(boolean);
+    method public void setJustificationMode(int);
     method public void setKeyListener(android.text.method.KeyListener);
     method public void setLetterSpacing(float);
     method public void setLineSpacing(float, float);
diff --git a/api/test-current.txt b/api/test-current.txt
index 1b5eeed..795342f 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -8921,7 +8921,6 @@
     field public static final java.lang.String DOWNLOAD_SERVICE = "download";
     field public static final java.lang.String DROPBOX_SERVICE = "dropbox";
     field public static final java.lang.String FINGERPRINT_SERVICE = "fingerprint";
-    field public static final java.lang.String FONT_SERVICE = "font";
     field public static final java.lang.String HARDWARE_PROPERTIES_SERVICE = "hardware_properties";
     field public static final java.lang.String INPUT_METHOD_SERVICE = "input_method";
     field public static final java.lang.String INPUT_SERVICE = "input";
@@ -13293,7 +13292,7 @@
     method public void setFilterBitmap(boolean);
     method public void setFlags(int);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method public void setHinting(int);
     method public void setLetterSpacing(float);
     method public void setLinearText(boolean);
@@ -13827,8 +13826,8 @@
     method public static android.graphics.Typeface.Builder obtain();
     method public void recycle();
     method public void reset();
-    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String);
-    method public android.graphics.Typeface.Builder setFontVariationSettings(android.text.FontConfig.Axis[]);
+    method public android.graphics.Typeface.Builder setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public android.graphics.Typeface.Builder setFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
     method public android.graphics.Typeface.Builder setItalic(int);
     method public android.graphics.Typeface.Builder setSourceFromAsset(android.content.res.AssetManager, java.lang.String);
     method public android.graphics.Typeface.Builder setSourceFromFile(java.io.File);
@@ -14439,6 +14438,21 @@
     field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontRequest> CREATOR;
   }
 
+  public final class FontVariationAxis implements android.os.Parcelable {
+    ctor public FontVariationAxis(java.lang.String, float) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public int describeContents();
+    method public static android.graphics.fonts.FontVariationAxis[] fromFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
+    method public float getStyleValue();
+    method public java.lang.String getTag();
+    method public static java.lang.String toFontVariationSettings(android.graphics.fonts.FontVariationAxis[]);
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.graphics.fonts.FontVariationAxis> CREATOR;
+  }
+
+  public static class FontVariationAxis.InvalidFormatException extends java.lang.Exception {
+    ctor public FontVariationAxis.InvalidFormatException(java.lang.String);
+  }
+
 }
 
 package android.graphics.pdf {
@@ -24655,85 +24669,6 @@
     field public static final java.lang.String EXTRA_WATCH_NEXT_PROGRAM_ID = "android.media.tv.extra.WATCH_NEXT_PROGRAM_ID";
   }
 
-  public static abstract interface TvContract.BasePreviewProgramColumns implements android.media.tv.TvContract.BaseProgramColumns {
-    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
-    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
-    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
-    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
-    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
-    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
-    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
-    field public static final java.lang.String COLUMN_AUTHOR = "author";
-    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
-    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
-    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
-    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
-    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
-    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
-    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
-    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
-    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
-    field public static final java.lang.String COLUMN_LIVE = "live";
-    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
-    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
-    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
-    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
-    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
-    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
-    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
-    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
-    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
-    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
-    field public static final java.lang.String COLUMN_TYPE = "type";
-    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
-    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
-    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
-    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
-    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
-    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
-    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
-    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
-    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
-    field public static final int TYPE_ALBUM = 8; // 0x8
-    field public static final int TYPE_ARTIST = 9; // 0x9
-    field public static final int TYPE_CHANNEL = 6; // 0x6
-    field public static final int TYPE_CLIP = 4; // 0x4
-    field public static final int TYPE_EVENT = 5; // 0x5
-    field public static final int TYPE_MOVIE = 0; // 0x0
-    field public static final int TYPE_PLAYLIST = 10; // 0xa
-    field public static final int TYPE_STATION = 11; // 0xb
-    field public static final int TYPE_TRACK = 7; // 0x7
-    field public static final int TYPE_TV_EPISODE = 3; // 0x3
-    field public static final int TYPE_TV_SEASON = 2; // 0x2
-    field public static final int TYPE_TV_SERIES = 1; // 0x1
-  }
-
-  public static abstract interface TvContract.BaseProgramColumns implements android.media.tv.TvContract.BaseTvColumns {
-    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
-    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
-    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
-    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
-    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
-    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
-    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
-    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
-    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
-    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
-    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
-    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
-    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
-    field public static final java.lang.String COLUMN_TITLE = "title";
-    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
-    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
-    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
-  }
-
   public static abstract interface TvContract.BaseTvColumns implements android.provider.BaseColumns {
     field public static final java.lang.String COLUMN_PACKAGE_NAME = "package_name";
   }
@@ -24820,22 +24755,116 @@
     field public static final java.lang.String CONTENT_DIRECTORY = "logo";
   }
 
-  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.PreviewPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WEIGHT = "weight";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/preview_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/preview_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
   }
 
-  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.Programs implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
     field public static final deprecated java.lang.String COLUMN_EPISODE_NUMBER = "episode_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_PROHIBITED = "recording_prohibited";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
     field public static final deprecated java.lang.String COLUMN_SEASON_NUMBER = "season_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/program";
     field public static final android.net.Uri CONTENT_URI;
@@ -24864,28 +24893,122 @@
     field public static final java.lang.String TRAVEL = "TRAVEL";
   }
 
-  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseProgramColumns {
+  public static final class TvContract.RecordedPrograms implements android.media.tv.TvContract.BaseTvColumns {
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
     field public static final java.lang.String COLUMN_BROADCAST_GENRE = "broadcast_genre";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
     field public static final java.lang.String COLUMN_CHANNEL_ID = "channel_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
     field public static final java.lang.String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
     field public static final java.lang.String COLUMN_INPUT_ID = "input_id";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
     field public static final java.lang.String COLUMN_RECORDING_DATA_BYTES = "recording_data_bytes";
     field public static final java.lang.String COLUMN_RECORDING_DATA_URI = "recording_data_uri";
     field public static final java.lang.String COLUMN_RECORDING_DURATION_MILLIS = "recording_duration_millis";
     field public static final java.lang.String COLUMN_RECORDING_EXPIRE_TIME_UTC_MILLIS = "recording_expire_time_utc_millis";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
     field public static final java.lang.String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/recorded_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/recorded_program";
     field public static final android.net.Uri CONTENT_URI;
   }
 
-  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BasePreviewProgramColumns {
+  public static final class TvContract.WatchNextPrograms implements android.media.tv.TvContract.BaseTvColumns {
     ctor public TvContract.WatchNextPrograms();
+    field public static final int ASPECT_RATIO_16_9 = 0; // 0x0
+    field public static final int ASPECT_RATIO_1_1 = 2; // 0x2
+    field public static final int ASPECT_RATIO_2_3 = 3; // 0x3
+    field public static final int ASPECT_RATIO_3_2 = 1; // 0x1
+    field public static final int AVAILABILITY_AVAILABLE = 0; // 0x0
+    field public static final int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1; // 0x1
+    field public static final int AVAILABILITY_PAID_CONTENT = 2; // 0x2
+    field public static final java.lang.String COLUMN_AUDIO_LANGUAGE = "audio_language";
+    field public static final java.lang.String COLUMN_AUTHOR = "author";
+    field public static final java.lang.String COLUMN_AVAILABILITY = "availability";
+    field public static final java.lang.String COLUMN_BROWSABLE = "browsable";
+    field public static final java.lang.String COLUMN_CANONICAL_GENRE = "canonical_genre";
+    field public static final java.lang.String COLUMN_CONTENT_ID = "content_id";
+    field public static final java.lang.String COLUMN_CONTENT_RATING = "content_rating";
+    field public static final java.lang.String COLUMN_DURATION_MILLIS = "duration_millis";
+    field public static final java.lang.String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
+    field public static final java.lang.String COLUMN_EPISODE_TITLE = "episode_title";
+    field public static final java.lang.String COLUMN_INTENT_URI = "intent_uri";
+    field public static final java.lang.String COLUMN_INTERACTION_COUNT = "interaction_count";
+    field public static final java.lang.String COLUMN_INTERACTION_TYPE = "interaction_type";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
+    field public static final java.lang.String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
+    field public static final java.lang.String COLUMN_ITEM_COUNT = "item_count";
     field public static final java.lang.String COLUMN_LAST_ENGAGEMENT_TIME_UTC_MILLIS = "last_engagement_time_utc_millis";
+    field public static final java.lang.String COLUMN_LAST_PLAYBACK_POSITION_MILLIS = "last_playback_position_millis";
+    field public static final java.lang.String COLUMN_LIVE = "live";
+    field public static final java.lang.String COLUMN_LOGO_URI = "logo_uri";
+    field public static final java.lang.String COLUMN_LONG_DESCRIPTION = "long_description";
+    field public static final java.lang.String COLUMN_OFFER_PRICE = "offer_price";
+    field public static final java.lang.String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
+    field public static final java.lang.String COLUMN_POSTER_ART_URI = "poster_art_uri";
+    field public static final java.lang.String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
+    field public static final java.lang.String COLUMN_RELEASE_DATE = "release_date";
+    field public static final java.lang.String COLUMN_REVIEW_RATING = "review_rating";
+    field public static final java.lang.String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
+    field public static final java.lang.String COLUMN_SEARCHABLE = "searchable";
+    field public static final java.lang.String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
+    field public static final java.lang.String COLUMN_SEASON_TITLE = "season_title";
+    field public static final java.lang.String COLUMN_SHORT_DESCRIPTION = "short_description";
+    field public static final java.lang.String COLUMN_STARTING_PRICE = "starting_price";
+    field public static final java.lang.String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
+    field public static final java.lang.String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
+    field public static final java.lang.String COLUMN_TITLE = "title";
+    field public static final java.lang.String COLUMN_TRANSIENT = "transient";
+    field public static final java.lang.String COLUMN_TYPE = "type";
+    field public static final java.lang.String COLUMN_VERSION_NUMBER = "version_number";
+    field public static final java.lang.String COLUMN_VIDEO_HEIGHT = "video_height";
+    field public static final java.lang.String COLUMN_VIDEO_WIDTH = "video_width";
     field public static final java.lang.String COLUMN_WATCH_NEXT_TYPE = "watch_next_type";
     field public static final java.lang.String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/watch_next_program";
     field public static final java.lang.String CONTENT_TYPE = "vnd.android.cursor.dir/watch_next_program";
     field public static final android.net.Uri CONTENT_URI;
+    field public static final int INTERACTION_TYPE_FANS = 3; // 0x3
+    field public static final int INTERACTION_TYPE_FOLLOWERS = 2; // 0x2
+    field public static final int INTERACTION_TYPE_LIKES = 4; // 0x4
+    field public static final int INTERACTION_TYPE_LISTENS = 1; // 0x1
+    field public static final int INTERACTION_TYPE_THUMBS = 5; // 0x5
+    field public static final int INTERACTION_TYPE_VIEWERS = 6; // 0x6
+    field public static final int INTERACTION_TYPE_VIEWS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_PERCENTAGE = 2; // 0x2
+    field public static final int REVIEW_RATING_STYLE_STARS = 0; // 0x0
+    field public static final int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1; // 0x1
+    field public static final int TYPE_ALBUM = 8; // 0x8
+    field public static final int TYPE_ARTIST = 9; // 0x9
+    field public static final int TYPE_CHANNEL = 6; // 0x6
+    field public static final int TYPE_CLIP = 4; // 0x4
+    field public static final int TYPE_EVENT = 5; // 0x5
+    field public static final int TYPE_MOVIE = 0; // 0x0
+    field public static final int TYPE_PLAYLIST = 10; // 0xa
+    field public static final int TYPE_STATION = 11; // 0xb
+    field public static final int TYPE_TRACK = 7; // 0x7
+    field public static final int TYPE_TV_EPISODE = 3; // 0x3
+    field public static final int TYPE_TV_SEASON = 2; // 0x2
+    field public static final int TYPE_TV_SERIES = 1; // 0x1
     field public static final int WATCH_NEXT_TYPE_CONTINUE = 0; // 0x0
     field public static final int WATCH_NEXT_TYPE_NEW = 2; // 0x2
     field public static final int WATCH_NEXT_TYPE_NEXT = 1; // 0x1
@@ -41260,65 +41383,6 @@
     method public android.text.Editable newEditable(java.lang.CharSequence);
   }
 
-  public final class FontConfig implements android.os.Parcelable {
-    ctor public FontConfig(android.text.FontConfig.Family[], android.text.FontConfig.Alias[]);
-    method public int describeContents();
-    method public android.text.FontConfig.Alias[] getAliases();
-    method public android.text.FontConfig.Family[] getFamilies();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig> CREATOR;
-  }
-
-  public static final class FontConfig.Alias implements android.os.Parcelable {
-    ctor public FontConfig.Alias(java.lang.String, java.lang.String, int);
-    method public int describeContents();
-    method public java.lang.String getName();
-    method public java.lang.String getToName();
-    method public int getWeight();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Alias> CREATOR;
-  }
-
-  public static final class FontConfig.Axis implements android.os.Parcelable {
-    ctor public FontConfig.Axis(int, float);
-    ctor public FontConfig.Axis(java.lang.String, float);
-    method public int describeContents();
-    method public float getStyleValue();
-    method public int getTag();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Axis> CREATOR;
-  }
-
-  public static final class FontConfig.Family implements android.os.Parcelable {
-    ctor public FontConfig.Family(java.lang.String, android.text.FontConfig.Font[], java.lang.String, int);
-    method public int describeContents();
-    method public android.text.FontConfig.Font[] getFonts();
-    method public java.lang.String getLanguage();
-    method public java.lang.String getName();
-    method public int getVariant();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Family> CREATOR;
-    field public static final int VARIANT_COMPACT = 1; // 0x1
-    field public static final int VARIANT_DEFAULT = 0; // 0x0
-    field public static final int VARIANT_ELEGANT = 2; // 0x2
-  }
-
-  public static final class FontConfig.Font implements android.os.Parcelable {
-    method public int describeContents();
-    method public android.text.FontConfig.Axis[] getAxes();
-    method public java.lang.String getFontName();
-    method public int getTtcIndex();
-    method public android.net.Uri getUri();
-    method public int getWeight();
-    method public boolean isItalic();
-    method public void writeToParcel(android.os.Parcel, int);
-    field public static final android.os.Parcelable.Creator<android.text.FontConfig.Font> CREATOR;
-  }
-
-  public final class FontManager {
-    method public android.text.FontConfig getSystemFonts();
-  }
-
   public abstract interface GetChars implements java.lang.CharSequence {
     method public abstract void getChars(int, int, char[], int);
   }
@@ -41466,6 +41530,8 @@
     field public static final int HYPHENATION_FREQUENCY_FULL = 2; // 0x2
     field public static final int HYPHENATION_FREQUENCY_NONE = 0; // 0x0
     field public static final int HYPHENATION_FREQUENCY_NORMAL = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_INTER_WORD = 1; // 0x1
+    field public static final int JUSTIFICATION_MODE_NONE = 0; // 0x0
   }
 
   public static final class Layout.Alignment extends java.lang.Enum {
@@ -41667,7 +41733,7 @@
     method public android.text.StaticLayout.Builder setHyphenationFrequency(int);
     method public android.text.StaticLayout.Builder setIncludePad(boolean);
     method public android.text.StaticLayout.Builder setIndents(int[], int[]);
-    method public android.text.StaticLayout.Builder setJustify(boolean);
+    method public android.text.StaticLayout.Builder setJustificationMode(int);
     method public android.text.StaticLayout.Builder setLineSpacing(float, float);
     method public android.text.StaticLayout.Builder setMaxLines(int);
     method public android.text.StaticLayout.Builder setText(java.lang.CharSequence);
@@ -49047,7 +49113,7 @@
     method public abstract boolean getOffscreenPreRaster();
     method public abstract deprecated android.webkit.WebSettings.PluginState getPluginState();
     method public abstract java.lang.String getSansSerifFontFamily();
-    method public abstract boolean getSaveFormData();
+    method public abstract deprecated boolean getSaveFormData();
     method public abstract deprecated boolean getSavePassword();
     method public abstract java.lang.String getSerifFontFamily();
     method public abstract java.lang.String getStandardFontFamily();
@@ -49096,7 +49162,7 @@
     method public abstract deprecated void setPluginState(android.webkit.WebSettings.PluginState);
     method public abstract deprecated void setRenderPriority(android.webkit.WebSettings.RenderPriority);
     method public abstract void setSansSerifFontFamily(java.lang.String);
-    method public abstract void setSaveFormData(boolean);
+    method public abstract deprecated void setSaveFormData(boolean);
     method public abstract deprecated void setSavePassword(boolean);
     method public abstract void setSerifFontFamily(java.lang.String);
     method public abstract void setStandardFontFamily(java.lang.String);
@@ -49387,12 +49453,12 @@
 
   public abstract class WebViewDatabase {
     ctor public WebViewDatabase();
-    method public abstract void clearFormData();
+    method public abstract deprecated void clearFormData();
     method public abstract void clearHttpAuthUsernamePassword();
     method public abstract deprecated void clearUsernamePassword();
     method public abstract java.lang.String[] getHttpAuthUsernamePassword(java.lang.String, java.lang.String);
     method public static android.webkit.WebViewDatabase getInstance(android.content.Context);
-    method public abstract boolean hasFormData();
+    method public abstract deprecated boolean hasFormData();
     method public abstract boolean hasHttpAuthUsernamePassword();
     method public abstract deprecated boolean hasUsernamePassword();
     method public abstract void setHttpAuthUsernamePassword(java.lang.String, java.lang.String, java.lang.String, java.lang.String);
@@ -51660,7 +51726,7 @@
     method public boolean getIncludeFontPadding();
     method public android.os.Bundle getInputExtras(boolean);
     method public int getInputType();
-    method public boolean getJustify();
+    method public int getJustificationMode();
     method public final android.text.method.KeyListener getKeyListener();
     method public final android.text.Layout getLayout();
     method public float getLetterSpacing();
@@ -51755,7 +51821,7 @@
     method public void setExtractedText(android.view.inputmethod.ExtractedText);
     method public void setFilters(android.text.InputFilter[]);
     method public void setFontFeatureSettings(java.lang.String);
-    method public boolean setFontVariationSettings(java.lang.String);
+    method public boolean setFontVariationSettings(java.lang.String) throws android.graphics.fonts.FontVariationAxis.InvalidFormatException;
     method protected boolean setFrame(int, int, int, int);
     method public void setFreezesText(boolean);
     method public void setGravity(int);
@@ -51773,7 +51839,7 @@
     method public void setIncludeFontPadding(boolean);
     method public void setInputExtras(int) throws java.io.IOException, org.xmlpull.v1.XmlPullParserException;
     method public void setInputType(int);
-    method public void setJustify(boolean);
+    method public void setJustificationMode(int);
     method public void setKeyListener(android.text.method.KeyListener);
     method public void setLetterSpacing(float);
     method public void setLineSpacing(float, float);
diff --git a/compiled-classes-phone b/compiled-classes-phone
index ea8f4a4..1a19b2c 100644
--- a/compiled-classes-phone
+++ b/compiled-classes-phone
@@ -4061,7 +4061,6 @@
 android.text.FontConfig$Family$1
 android.text.FontConfig$Font
 android.text.FontConfig$Font$1
-android.text.FontManager
 android.text.GetChars
 android.text.GraphicsOperations
 android.text.Html
@@ -5501,8 +5500,6 @@
 com.android.internal.content.PackageMonitor
 com.android.internal.content.ReferrerIntent
 com.android.internal.content.ReferrerIntent$1
-com.android.internal.font.IFontManager
-com.android.internal.font.IFontManager$Stub
 com.android.internal.graphics.drawable.AnimationScaleListDrawable
 com.android.internal.graphics.drawable.AnimationScaleListDrawable$AnimationScaleListState
 com.android.internal.hardware.AmbientDisplayConfiguration
diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index dbf81f9..d432160 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -4159,14 +4159,25 @@
                 mTaskDescription.setPrimaryColor(colorPrimary);
             }
         }
-        // For dev-preview only.
-        if (mTaskDescription.getBackgroundColor() == 0) {
-            int colorBackground = a.getColor(
-                    com.android.internal.R.styleable.ActivityTaskDescription_colorBackground, 0);
-            if (colorBackground != 0 && Color.alpha(colorBackground) == 0xFF) {
-                mTaskDescription.setBackgroundColor(colorBackground);
-            }
+
+        int colorBackground = a.getColor(
+                com.android.internal.R.styleable.ActivityTaskDescription_colorBackground, 0);
+        if (colorBackground != 0 && Color.alpha(colorBackground) == 0xFF) {
+            mTaskDescription.setBackgroundColor(colorBackground);
         }
+
+        final int statusBarColor = a.getColor(
+                com.android.internal.R.styleable.ActivityTaskDescription_statusBarColor, 0);
+        if (statusBarColor != 0) {
+            mTaskDescription.setStatusBarColor(statusBarColor);
+        }
+
+        final int navigationBarColor = a.getColor(
+                com.android.internal.R.styleable.ActivityTaskDescription_navigationBarColor, 0);
+        if (navigationBarColor != 0) {
+            mTaskDescription.setNavigationBarColor(navigationBarColor);
+        }
+
         a.recycle();
         setTaskDescription(mTaskDescription);
     }
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 4004bd6..aede1bb 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -1145,6 +1145,8 @@
         private String mIconFilename;
         private int mColorPrimary;
         private int mColorBackground;
+        private int mStatusBarColor;
+        private int mNavigationBarColor;
 
         /**
          * Creates the TaskDescription to the specified values.
@@ -1155,7 +1157,7 @@
          *                     opaque.
          */
         public TaskDescription(String label, Bitmap icon, int colorPrimary) {
-            this(label, icon, null, colorPrimary, 0);
+            this(label, icon, null, colorPrimary, 0, 0, 0);
             if ((colorPrimary != 0) && (Color.alpha(colorPrimary) != 255)) {
                 throw new RuntimeException("A TaskDescription's primary color should be opaque");
             }
@@ -1168,7 +1170,7 @@
          * @param icon An icon that represents the current state of this activity.
          */
         public TaskDescription(String label, Bitmap icon) {
-            this(label, icon, null, 0, 0);
+            this(label, icon, null, 0, 0, 0, 0);
         }
 
         /**
@@ -1177,24 +1179,26 @@
          * @param label A label and description of the current state of this activity.
          */
         public TaskDescription(String label) {
-            this(label, null, null, 0, 0);
+            this(label, null, null, 0, 0, 0, 0);
         }
 
         /**
          * Creates an empty TaskDescription.
          */
         public TaskDescription() {
-            this(null, null, null, 0, 0);
+            this(null, null, null, 0, 0, 0, 0);
         }
 
         /** @hide */
         public TaskDescription(String label, Bitmap icon, String iconFilename, int colorPrimary,
-                int colorBackground) {
+                int colorBackground, int statusBarColor, int navigationBarColor) {
             mLabel = label;
             mIcon = icon;
             mIconFilename = iconFilename;
             mColorPrimary = colorPrimary;
             mColorBackground = colorBackground;
+            mStatusBarColor = statusBarColor;
+            mNavigationBarColor = navigationBarColor;
         }
 
         /**
@@ -1214,6 +1218,8 @@
             mIconFilename = other.mIconFilename;
             mColorPrimary = other.mColorPrimary;
             mColorBackground = other.mColorBackground;
+            mStatusBarColor = other.mStatusBarColor;
+            mNavigationBarColor = other.mNavigationBarColor;
         }
 
         private TaskDescription(Parcel source) {
@@ -1253,6 +1259,20 @@
         }
 
         /**
+         * @hide
+         */
+        public void setStatusBarColor(int statusBarColor) {
+            mStatusBarColor = statusBarColor;
+        }
+
+        /**
+         * @hide
+         */
+        public void setNavigationBarColor(int navigationBarColor) {
+            mNavigationBarColor = navigationBarColor;
+        }
+
+        /**
          * Sets the icon for this task description.
          * @hide
          */
@@ -1325,6 +1345,20 @@
             return mColorBackground;
         }
 
+        /**
+         * @hide
+         */
+        public int getStatusBarColor() {
+            return mStatusBarColor;
+        }
+
+        /**
+         * @hide
+         */
+        public int getNavigationBarColor() {
+            return mNavigationBarColor;
+        }
+
         /** @hide */
         public void saveToXml(XmlSerializer out) throws IOException {
             if (mLabel != null) {
@@ -1377,6 +1411,8 @@
             }
             dest.writeInt(mColorPrimary);
             dest.writeInt(mColorBackground);
+            dest.writeInt(mStatusBarColor);
+            dest.writeInt(mNavigationBarColor);
             if (mIconFilename == null) {
                 dest.writeInt(0);
             } else {
@@ -1390,6 +1426,8 @@
             mIcon = source.readInt() > 0 ? Bitmap.CREATOR.createFromParcel(source) : null;
             mColorPrimary = source.readInt();
             mColorBackground = source.readInt();
+            mStatusBarColor = source.readInt();
+            mNavigationBarColor = source.readInt();
             mIconFilename = source.readInt() > 0 ? source.readString() : null;
         }
 
@@ -1407,7 +1445,9 @@
         public String toString() {
             return "TaskDescription Label: " + mLabel + " Icon: " + mIcon +
                     " IconFilename: " + mIconFilename + " colorPrimary: " + mColorPrimary +
-                    " colorBackground: " + mColorBackground;
+                    " colorBackground: " + mColorBackground +
+                    " statusBarColor: " + mColorBackground +
+                    " navigationBarColor: " + mNavigationBarColor;
         }
     }
 
diff --git a/core/java/android/app/FragmentManager.java b/core/java/android/app/FragmentManager.java
index 279b900..399987f 100644
--- a/core/java/android/app/FragmentManager.java
+++ b/core/java/android/app/FragmentManager.java
@@ -1128,8 +1128,13 @@
             newState = Fragment.CREATED;
         }
         if (f.mRemoving && newState > f.mState) {
-            // While removing a fragment, we can't change it to a higher state.
-            newState = f.mState;
+            if (f.mState == Fragment.INITIALIZING && f.isInBackStack()) {
+                // Allow the fragment to be created so that it can be saved later.
+                newState = Fragment.CREATED;
+            } else {
+                // While removing a fragment, we can't change it to a higher state.
+                newState = f.mState;
+            }
         }
         // Defer start if requested; don't allow it to move to STARTED or higher
         // if it's not already started.
diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
index f719749..6b05bdf 100644
--- a/core/java/android/app/SystemServiceRegistry.java
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -125,7 +125,6 @@
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionManager;
 import android.telephony.TelephonyManager;
-import android.text.FontManager;
 import android.util.Log;
 import android.view.ContextThemeWrapper;
 import android.view.LayoutInflater;
@@ -141,7 +140,6 @@
 import com.android.internal.app.IBatteryStats;
 import com.android.internal.app.ISoundTriggerService;
 import com.android.internal.appwidget.IAppWidgetService;
-import com.android.internal.font.IFontManager;
 import com.android.internal.os.IDropBoxManagerService;
 import com.android.internal.policy.PhoneLayoutInflater;
 
@@ -820,14 +818,6 @@
                 return new IncidentManager(ctx);
             }});
 
-        registerService(Context.FONT_SERVICE, FontManager.class,
-                new CachedServiceFetcher<FontManager>() {
-                    @Override
-                    public FontManager createService(ContextImpl ctx)
-                            throws ServiceNotFoundException {
-                        IBinder b = ServiceManager.getServiceOrThrow(Context.FONT_SERVICE);
-                        return new FontManager(IFontManager.Stub.asInterface(b));
-                    }});
         registerService(Context.AUTOFILL_MANAGER_SERVICE, AutofillManager.class,
                 new CachedServiceFetcher<AutofillManager>() {
             @Override
diff --git a/core/java/android/content/Context.java b/core/java/android/content/Context.java
index be267b3..368c7b8 100644
--- a/core/java/android/content/Context.java
+++ b/core/java/android/content/Context.java
@@ -3870,11 +3870,6 @@
     public static final String DEVICE_IDENTIFIERS_SERVICE = "device_identifiers";
 
     /**
-     * Service that provides System font data.
-     */
-    public static final String FONT_SERVICE = "font";
-
-    /**
      * Service to report a system health "incident"
      * @hide
      */
diff --git a/core/java/com/android/internal/font/IFontManager.aidl b/core/java/android/service/resolver/IResolverRankerResult.aidl
similarity index 77%
copy from core/java/com/android/internal/font/IFontManager.aidl
copy to core/java/android/service/resolver/IResolverRankerResult.aidl
index 52a6262..bda3154 100644
--- a/core/java/com/android/internal/font/IFontManager.aidl
+++ b/core/java/android/service/resolver/IResolverRankerResult.aidl
@@ -14,14 +14,14 @@
  * limitations under the License.
  */
 
-package com.android.internal.font;
+package android.service.resolver;
 
-import android.text.FontConfig;
+import android.service.resolver.ResolverTarget;
 
 /**
- * Interface to the font manager.
  * @hide
  */
-interface IFontManager {
-    FontConfig getSystemFonts();
-}
+oneway interface IResolverRankerResult
+{
+    void sendResult(in List<ResolverTarget> results);
+}
\ No newline at end of file
diff --git a/core/java/com/android/internal/font/IFontManager.aidl b/core/java/android/service/resolver/IResolverRankerService.aidl
similarity index 65%
copy from core/java/com/android/internal/font/IFontManager.aidl
copy to core/java/android/service/resolver/IResolverRankerService.aidl
index 52a6262..f0d747d 100644
--- a/core/java/com/android/internal/font/IFontManager.aidl
+++ b/core/java/android/service/resolver/IResolverRankerService.aidl
@@ -14,14 +14,16 @@
  * limitations under the License.
  */
 
-package com.android.internal.font;
+package android.service.resolver;
 
-import android.text.FontConfig;
+import android.service.resolver.IResolverRankerResult;
+import android.service.resolver.ResolverTarget;
 
 /**
- * Interface to the font manager.
  * @hide
  */
-interface IFontManager {
-    FontConfig getSystemFonts();
-}
+oneway interface IResolverRankerService
+{
+    void predict(in List<ResolverTarget> targets, IResolverRankerResult result);
+    void train(in List<ResolverTarget> targets, int selectedPosition);
+}
\ No newline at end of file
diff --git a/core/java/android/service/resolver/ResolverRankerService.java b/core/java/android/service/resolver/ResolverRankerService.java
new file mode 100644
index 0000000..0506747
--- /dev/null
+++ b/core/java/android/service/resolver/ResolverRankerService.java
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.service.resolver;
+
+import android.annotation.SdkConstant;
+import android.annotation.SystemApi;
+import android.app.Service;
+import android.content.ComponentName;
+import android.content.Intent;
+import android.os.IBinder;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.RemoteException;
+import android.service.resolver.ResolverTarget;
+import android.util.Log;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A service to rank apps according to usage stats of apps, when the system is resolving targets for
+ * an Intent.
+ *
+ * <p>To extend this class, you must declare the service in your manifest file with the
+ * {@link android.Manifest.permission#BIND_RESOLVER_RANKER_SERVICE} permission, and include an
+ * intent filter with the {@link #SERVICE_INTERFACE} action. For example:</p>
+ * <pre>
+ *     &lt;service android:name=".MyResolverRankerService"
+ *             android:exported="true"
+ *             android:priority="100"
+ *             android:permission="android.permission.BIND_RESOLVER_RANKER_SERVICE"&gt;
+ *         &lt;intent-filter&gt;
+ *             &lt;action android:name="android.service.resolver.ResolverRankerService" /&gt;
+ *         &lt;/intent-filter&gt;
+ *     &lt;/service&gt;
+ * </pre>
+ * @hide
+ */
+@SystemApi
+public abstract class ResolverRankerService extends Service {
+
+    private static final String TAG = "ResolverRankerService";
+
+    private static final boolean DEBUG = false;
+
+    /**
+     * The Intent action that a service must respond to. Add it to the intent filter of the service
+     * in its manifest.
+     */
+    @SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION)
+    public static final String SERVICE_INTERFACE = "android.service.resolver.ResolverRankerService";
+
+    /**
+     * The permission that a service must require to ensure that only Android system can bind to it.
+     * If this permission is not enforced in the AndroidManifest of the service, the system will
+     * skip that service.
+     */
+    public static final String BIND_PERMISSION = "android.permission.BIND_RESOLVER_RANKER_SERVICE";
+
+    private ResolverRankerServiceWrapper mWrapper = null;
+
+    /**
+     * Called by the system to retrieve a list of probabilities to rank apps/options. To implement
+     * it, set selectProbability of each input {@link ResolverTarget}. The higher the
+     * selectProbability is, the more likely the {@link ResolverTarget} will be selected by the
+     * user. Override this function to provide prediction results.
+     *
+     * @param targets a list of {@link ResolverTarget}, for the list of apps to be ranked.
+     *
+     * @throws Exception when the prediction task fails.
+     */
+    public void onPredictSharingProbabilities(final List<ResolverTarget> targets) {}
+
+    /**
+     * Called by the system to train/update a ranking service, after the user makes a selection from
+     * the ranked list of apps. Override this function to enable model updates.
+     *
+     * @param targets a list of {@link ResolverTarget}, for the list of apps to be ranked.
+     * @param selectedPosition the position of the selected app in the list.
+     *
+     * @throws Exception when the training task fails.
+     */
+    public void onTrainRankingModel(
+            final List<ResolverTarget> targets, final int selectedPosition) {}
+
+    private static final String HANDLER_THREAD_NAME = "RESOLVER_RANKER_SERVICE";
+    private volatile Handler mHandler;
+    private HandlerThread mHandlerThread;
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        if (DEBUG) Log.d(TAG, "onBind " + intent);
+        if (!SERVICE_INTERFACE.equals(intent.getAction())) {
+            if (DEBUG) Log.d(TAG, "bad intent action " + intent.getAction() + "; returning null");
+            return null;
+        }
+        if (mHandlerThread == null) {
+            mHandlerThread = new HandlerThread(HANDLER_THREAD_NAME);
+            mHandlerThread.start();
+            mHandler = new Handler(mHandlerThread.getLooper());
+        }
+        if (mWrapper == null) {
+            mWrapper = new ResolverRankerServiceWrapper();
+        }
+        return mWrapper;
+    }
+
+    @Override
+    public void onDestroy() {
+        mHandler = null;
+        if (mHandlerThread != null) {
+            mHandlerThread.quitSafely();
+        }
+        super.onDestroy();
+    }
+
+    private static void sendResult(List<ResolverTarget> targets, IResolverRankerResult result) {
+        try {
+            result.sendResult(targets);
+        } catch (Exception e) {
+            Log.e(TAG, "failed to send results: " + e);
+        }
+    }
+
+    private class ResolverRankerServiceWrapper extends IResolverRankerService.Stub {
+
+        @Override
+        public void predict(final List<ResolverTarget> targets, final IResolverRankerResult result)
+                throws RemoteException {
+            Runnable predictRunnable = new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        if (DEBUG) {
+                            Log.d(TAG, "predict calls onPredictSharingProbabilities.");
+                        }
+                        onPredictSharingProbabilities(targets);
+                        sendResult(targets, result);
+                    } catch (Exception e) {
+                        Log.e(TAG, "onPredictSharingProbabilities failed; send null results: " + e);
+                        sendResult(null, result);
+                    }
+                }
+            };
+            final Handler h = mHandler;
+            if (h != null) {
+                h.post(predictRunnable);
+            }
+        }
+
+        @Override
+        public void train(final List<ResolverTarget> targets, final int selectedPosition)
+                throws RemoteException {
+            Runnable trainRunnable = new Runnable() {
+                @Override
+                public void run() {
+                    try {
+                        if (DEBUG) {
+                            Log.d(TAG, "train calls onTranRankingModel");
+                        }
+                        onTrainRankingModel(targets, selectedPosition);
+                    } catch (Exception e) {
+                        Log.e(TAG, "onTrainRankingModel failed; skip train: " + e);
+                    }
+                }
+            };
+            final Handler h = mHandler;
+            if (h != null) {
+                h.post(trainRunnable);
+            }
+        }
+    }
+}
diff --git a/core/java/com/android/internal/font/IFontManager.aidl b/core/java/android/service/resolver/ResolverTarget.aidl
similarity index 79%
rename from core/java/com/android/internal/font/IFontManager.aidl
rename to core/java/android/service/resolver/ResolverTarget.aidl
index 52a6262..6cab2d4 100644
--- a/core/java/com/android/internal/font/IFontManager.aidl
+++ b/core/java/android/service/resolver/ResolverTarget.aidl
@@ -14,14 +14,9 @@
  * limitations under the License.
  */
 
-package com.android.internal.font;
-
-import android.text.FontConfig;
+package android.service.resolver;
 
 /**
- * Interface to the font manager.
  * @hide
  */
-interface IFontManager {
-    FontConfig getSystemFonts();
-}
+parcelable ResolverTarget;
diff --git a/core/java/android/service/resolver/ResolverTarget.java b/core/java/android/service/resolver/ResolverTarget.java
new file mode 100644
index 0000000..fb3e2d7
--- /dev/null
+++ b/core/java/android/service/resolver/ResolverTarget.java
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.service.resolver;
+
+import android.annotation.SystemApi;
+import android.os.Bundle;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.util.ArrayMap;
+
+import java.util.Map;
+
+/**
+ * A ResolverTarget contains features by which an app or option will be ranked, in
+ * {@link ResolverRankerService}.
+ * @hide
+ */
+@SystemApi
+public final class ResolverTarget implements Parcelable {
+    private static final String TAG = "ResolverTarget";
+
+    /**
+     * a float score for recency of last use.
+     */
+    private float mRecencyScore;
+
+    /**
+     * a float score for total time spent.
+     */
+    private float mTimeSpentScore;
+
+    /**
+     * a float score for number of launches.
+     */
+    private float mLaunchScore;
+
+    /**
+     * a float score for number of selected.
+     */
+    private float mChooserScore;
+
+    /**
+     * a float score for the probability to be selected.
+     */
+    private float mSelectProbability;
+
+    // constructor for the class.
+    public ResolverTarget() {}
+
+    ResolverTarget(Parcel in) {
+        mRecencyScore = in.readFloat();
+        mTimeSpentScore = in.readFloat();
+        mLaunchScore = in.readFloat();
+        mChooserScore = in.readFloat();
+        mSelectProbability = in.readFloat();
+    }
+
+    /**
+     * Gets the score for how recently the target was used in the foreground.
+     *
+     * @return a float score whose range is [0, 1]. The higher the score is, the more recently the
+     * target was used.
+     */
+    public float getRecencyScore() {
+        return mRecencyScore;
+    }
+
+    /**
+     * Sets the score for how recently the target was used in the foreground.
+     *
+     * @param recencyScore a float score whose range is [0, 1]. The higher the score is, the more
+     *                     recently the target was used.
+     */
+    public void setRecencyScore(float recencyScore) {
+        this.mRecencyScore = recencyScore;
+    }
+
+    /**
+     * Gets the score for how long the target has been used in the foreground.
+     *
+     * @return a float score whose range is [0, 1]. The higher the score is, the longer the target
+     * has been used for.
+     */
+    public float getTimeSpentScore() {
+        return mTimeSpentScore;
+    }
+
+    /**
+     * Sets the score for how long the target has been used in the foreground.
+     *
+     * @param timeSpentScore a float score whose range is [0, 1]. The higher the score is, the
+     *                       longer the target has been used for.
+     */
+    public void setTimeSpentScore(float timeSpentScore) {
+        this.mTimeSpentScore = timeSpentScore;
+    }
+
+    /**
+     * Gets the score for how many times the target has been launched to the foreground.
+     *
+     * @return a float score whose range is [0, 1]. The higher the score is, the more times the
+     * target has been launched.
+     */
+    public float getLaunchScore() {
+        return mLaunchScore;
+    }
+
+    /**
+     * Sets the score for how many times the target has been launched to the foreground.
+     *
+     * @param launchScore a float score whose range is [0, 1]. The higher the score is, the more
+     *                    times the target has been launched.
+     */
+    public void setLaunchScore(float launchScore) {
+        this.mLaunchScore = launchScore;
+    }
+
+    /**
+     * Gets the score for how many times the target has been selected by the user to share the same
+     * types of content.
+     *
+     * @return a float score whose range is [0, 1]. The higher the score is, the
+     * more times the target has been selected by the user to share the same types of content for.
+     */
+    public float getChooserScore() {
+        return mChooserScore;
+    }
+
+    /**
+     * Sets the score for how many times the target has been selected by the user to share the same
+     * types of content.
+     *
+     * @param chooserScore a float score whose range is [0, 1]. The higher the score is, the more
+     *                     times the target has been selected by the user to share the same types
+     *                     of content for.
+     */
+    public void setChooserScore(float chooserScore) {
+        this.mChooserScore = chooserScore;
+    }
+
+    /**
+     * Gets the probability of how likely this target will be selected by the user.
+     *
+     * @return a float score whose range is [0, 1]. The higher the score is, the more likely the
+     * user is going to select this target.
+     */
+    public float getSelectProbability() {
+        return mSelectProbability;
+    }
+
+    /**
+     * Sets the probability for how like this target will be selected by the user.
+     *
+     * @param selectProbability a float score whose range is [0, 1]. The higher the score is, the
+     *                          more likely tht user is going to select this target.
+     */
+    public void setSelectProbability(float selectProbability) {
+        this.mSelectProbability = selectProbability;
+    }
+
+    // serialize the class to a string.
+    @Override
+    public String toString() {
+        return "ResolverTarget{"
+                + mRecencyScore + ", "
+                + mTimeSpentScore + ", "
+                + mLaunchScore + ", "
+                + mChooserScore + ", "
+                + mSelectProbability + "}";
+    }
+
+    // describes the kinds of special objects contained in this Parcelable instance's marshaled
+    // representation.
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    // flattens this object in to a Parcel.
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeFloat(mRecencyScore);
+        dest.writeFloat(mTimeSpentScore);
+        dest.writeFloat(mLaunchScore);
+        dest.writeFloat(mChooserScore);
+        dest.writeFloat(mSelectProbability);
+    }
+
+    // creator definition for the class.
+    public static final Creator<ResolverTarget> CREATOR
+            = new Creator<ResolverTarget>() {
+        @Override
+        public ResolverTarget createFromParcel(Parcel source) {
+            return new ResolverTarget(source);
+        }
+
+        @Override
+        public ResolverTarget[] newArray(int size) {
+            return new ResolverTarget[size];
+        }
+    };
+}
diff --git a/core/java/android/text/DynamicLayout.java b/core/java/android/text/DynamicLayout.java
index 1e9deeb..6208c53 100644
--- a/core/java/android/text/DynamicLayout.java
+++ b/core/java/android/text/DynamicLayout.java
@@ -85,7 +85,7 @@
         this(base, display, paint, width, align, TextDirectionHeuristics.FIRSTSTRONG_LTR,
                 spacingmult, spacingadd, includepad,
                 StaticLayout.BREAK_STRATEGY_SIMPLE, StaticLayout.HYPHENATION_FREQUENCY_NONE,
-                false /* justify */, ellipsize, ellipsizedWidth);
+                Layout.JUSTIFICATION_MODE_NONE, ellipsize, ellipsizedWidth);
     }
 
     /**
@@ -102,7 +102,7 @@
                          int width, Alignment align, TextDirectionHeuristic textDir,
                          float spacingmult, float spacingadd,
                          boolean includepad, int breakStrategy, int hyphenationFrequency,
-                         boolean justify, TextUtils.TruncateAt ellipsize,
+                         int justificationMode, TextUtils.TruncateAt ellipsize,
                          int ellipsizedWidth) {
         super((ellipsize == null)
                 ? display
@@ -128,7 +128,7 @@
 
         mIncludePad = includepad;
         mBreakStrategy = breakStrategy;
-        mJustify = justify;
+        mJustificationMode = justificationMode;
         mHyphenationFrequency = hyphenationFrequency;
 
         /*
@@ -303,7 +303,7 @@
                 .setEllipsize(mEllipsizeAt)
                 .setBreakStrategy(mBreakStrategy)
                 .setHyphenationFrequency(mHyphenationFrequency)
-                .setJustify(mJustify);
+                .setJustificationMode(mJustificationMode);
         reflowed.generate(b, false, true);
         int n = reflowed.getLineCount();
         // If the new layout has a blank line at the end, but it is not
@@ -811,7 +811,7 @@
     private TextUtils.TruncateAt mEllipsizeAt;
     private int mBreakStrategy;
     private int mHyphenationFrequency;
-    private boolean mJustify;
+    private int mJustificationMode;
 
     private PackedIntVector mInts;
     private PackedObjectVector<Directions> mObjects;
diff --git a/core/java/android/text/FontConfig.java b/core/java/android/text/FontConfig.java
index 14d3ad7..8537d8f 100644
--- a/core/java/android/text/FontConfig.java
+++ b/core/java/android/text/FontConfig.java
@@ -21,7 +21,7 @@
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.graphics.FontListParser;
+import android.graphics.fonts.FontVariationAxis;
 import android.net.Uri;
 import android.os.Parcel;
 import android.os.Parcelable;
@@ -31,6 +31,7 @@
 
 /**
  * Font configuration descriptions for System fonts.
+ * @hide
  */
 public final class FontConfig implements Parcelable {
     private final @NonNull Family[] mFamilies;
@@ -84,78 +85,12 @@
     };
 
     /**
-     * Class that holds information about a Font axis.
-     */
-    public static final class Axis implements Parcelable {
-        private final int mTag;
-        private final float mStyleValue;
-
-        public Axis(int tag, float styleValue) {
-            mTag = tag;
-            mStyleValue = styleValue;
-        }
-
-        public Axis(@NonNull String tagString, float styleValue) {
-            if (!FontListParser.isValidTag(tagString)) {
-                throw new IllegalArgumentException("Invalid tag pattern: " + tagString);
-            }
-            mTag = FontListParser.makeTag(tagString);
-            mStyleValue = styleValue;
-        }
-
-        /**
-         * Returns the variable font axis tag associated to this axis.
-         */
-        public int getTag() {
-            return mTag;
-        }
-
-        /**
-         * Returns the style value associated to the given axis for this font.
-         */
-        public float getStyleValue() {
-            return mStyleValue;
-        }
-
-        /**
-         * @hide
-         */
-        public Axis(Parcel in) {
-            mTag = in.readInt();
-            mStyleValue = in.readFloat();
-        }
-
-        @Override
-        public void writeToParcel(Parcel out, int flag) {
-            out.writeInt(mTag);
-            out.writeFloat(mStyleValue);
-        }
-
-        @Override
-        public int describeContents() {
-            return 0;
-        }
-
-        public static final Creator<Axis> CREATOR = new Creator<Axis>() {
-            @Override
-            public Axis createFromParcel(Parcel in) {
-                return new Axis(in);
-            }
-
-            @Override
-            public Axis[] newArray(int size) {
-                return new Axis[size];
-            }
-        };
-    }
-
-    /**
      * Class that holds information about a Font.
      */
     public static final class Font implements Parcelable {
         private final @NonNull String mFontName;
         private final int mTtcIndex;
-        private final @NonNull Axis[] mAxes;
+        private final @NonNull FontVariationAxis[] mAxes;
         private final int mWeight;
         private final boolean mIsItalic;
         private Uri mUri;
@@ -163,8 +98,8 @@
         /**
          * @hide
          */
-        public Font(@NonNull String fontName, int ttcIndex, @NonNull Axis[] axes, int weight,
-                boolean isItalic) {
+        public Font(@NonNull String fontName, int ttcIndex, @NonNull FontVariationAxis[] axes,
+                int weight, boolean isItalic) {
             mFontName = fontName;
             mTtcIndex = ttcIndex;
             mAxes = axes;
@@ -189,7 +124,7 @@
         /**
          * Returns the list of axes associated to this font.
          */
-        public @NonNull Axis[] getAxes() {
+        public @NonNull FontVariationAxis[] getAxes() {
             return mAxes;
         }
 
@@ -230,7 +165,7 @@
         public Font(Parcel in) {
             mFontName = in.readString();
             mTtcIndex = in.readInt();
-            mAxes = in.createTypedArray(Axis.CREATOR);
+            mAxes = in.createTypedArray(FontVariationAxis.CREATOR);
             mWeight = in.readInt();
             mIsItalic = in.readInt() == 1;
             mUri = in.readTypedObject(Uri.CREATOR);
diff --git a/core/java/android/text/FontManager.java b/core/java/android/text/FontManager.java
deleted file mode 100644
index b61cbf3..0000000
--- a/core/java/android/text/FontManager.java
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.text;
-
-import android.os.RemoteException;
-
-import com.android.internal.font.IFontManager;
-
-/**
- * Interact with the Font service.
- */
-public final class FontManager {
-    private static final String TAG = "FontManager";
-
-    private final IFontManager mService;
-
-    /**
-     * @hide
-     */
-    public FontManager(IFontManager service) {
-        mService = service;
-    }
-
-    /**
-     * Retrieve the system fonts data. This loads the fonts.xml data if needed and loads all system
-     * fonts in to memory, providing file descriptors for them.
-     */
-    public FontConfig getSystemFonts() {
-        try {
-            return mService.getSystemFonts();
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-}
diff --git a/core/java/com/android/internal/font/IFontManager.aidl b/core/java/android/text/FontVariationAxis.aidl
similarity index 64%
copy from core/java/com/android/internal/font/IFontManager.aidl
copy to core/java/android/text/FontVariationAxis.aidl
index 52a6262..d5d52c2 100644
--- a/core/java/com/android/internal/font/IFontManager.aidl
+++ b/core/java/android/text/FontVariationAxis.aidl
@@ -1,11 +1,11 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
+/**
+ * Copyright (c) 2017, The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
- *      http://www.apache.org/licenses/LICENSE-2.0
+ *     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,
@@ -14,14 +14,6 @@
  * limitations under the License.
  */
 
-package com.android.internal.font;
+package android.text;
 
-import android.text.FontConfig;
-
-/**
- * Interface to the font manager.
- * @hide
- */
-interface IFontManager {
-    FontConfig getSystemFonts();
-}
+parcelable FontVariationAxis;
diff --git a/core/java/android/text/Layout.java b/core/java/android/text/Layout.java
index 53564f0..b47fce8 100644
--- a/core/java/android/text/Layout.java
+++ b/core/java/android/text/Layout.java
@@ -103,6 +103,21 @@
     private static final ParagraphStyle[] NO_PARA_SPANS =
         ArrayUtils.emptyArray(ParagraphStyle.class);
 
+    /** @hide */
+    @IntDef({JUSTIFICATION_MODE_NONE, JUSTIFICATION_MODE_INTER_WORD})
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface JustificationMode {}
+
+    /**
+     * Value for justification mode indicating no justification.
+     */
+    public static final int JUSTIFICATION_MODE_NONE = 0;
+
+    /**
+     * Value for justification mode indicating the text is justified by stretching word spacing.
+     */
+    public static final int JUSTIFICATION_MODE_INTER_WORD = 1;
+
     /**
      * Return how wide a layout must be in order to display the specified text with one line per
      * paragraph.
@@ -219,8 +234,8 @@
     }
 
     /** @hide */
-    protected void setJustify(boolean justify) {
-        mJustify = justify;
+    protected void setJustificationMode(@JustificationMode int justificationMode) {
+        mJustificationMode = justificationMode;
     }
 
     /**
@@ -272,7 +287,7 @@
     }
 
     private boolean isJustificationRequired(int lineNum) {
-        if (!mJustify) return false;
+        if (mJustificationMode == JUSTIFICATION_MODE_NONE) return false;
         final int lineEnd = getLineEnd(lineNum);
         return lineEnd < mText.length() && mText.charAt(lineEnd - 1) != '\n';
     }
@@ -2229,7 +2244,7 @@
     private boolean mSpannedText;
     private TextDirectionHeuristic mTextDir;
     private SpanSet<LineBackgroundSpan> mLineBackgroundSpans;
-    private boolean mJustify;
+    private int mJustificationMode;
 
     public static final int DIR_LEFT_TO_RIGHT = 1;
     public static final int DIR_RIGHT_TO_LEFT = -1;
diff --git a/core/java/android/text/StaticLayout.java b/core/java/android/text/StaticLayout.java
index 9a2e0bb..74ff6dc 100644
--- a/core/java/android/text/StaticLayout.java
+++ b/core/java/android/text/StaticLayout.java
@@ -94,7 +94,7 @@
             b.mMaxLines = Integer.MAX_VALUE;
             b.mBreakStrategy = Layout.BREAK_STRATEGY_SIMPLE;
             b.mHyphenationFrequency = Layout.HYPHENATION_FREQUENCY_NONE;
-            b.mJustify = false;
+            b.mJustificationMode = Layout.JUSTIFICATION_MODE_NONE;
 
             b.mMeasuredText = MeasuredText.obtain();
             return b;
@@ -321,15 +321,15 @@
         }
 
         /**
-         * Enables or disables paragraph justification. The default value is disabled (false).
-         * If the last line is too short for justification, the last line will be displayed with
-         * the alignment set by {@link #setAlignment}.
+         * Set paragraph justification mode. The default value is
+         * {@link Layout#JUSTIFICATION_MODE_NONE}. If the last line is too short for justification,
+         * the last line will be displayed with the alignment set by {@link #setAlignment}.
          *
-         * @param justify true for enabling and false for disabling paragraph justification.
+         * @param justificationMode justification mode for the paragraph.
          * @return this builder, useful for chaining.
          */
-        public Builder setJustify(boolean justify) {
-            mJustify = justify;
+        public Builder setJustificationMode(@JustificationMode int justificationMode) {
+            mJustificationMode = justificationMode;
             return this;
         }
 
@@ -418,7 +418,7 @@
         int mHyphenationFrequency;
         int[] mLeftIndents;
         int[] mRightIndents;
-        boolean mJustify;
+        int mJustificationMode;
 
         Paint.FontMetricsInt mFontMetricsInt = new Paint.FontMetricsInt();
 
@@ -572,7 +572,7 @@
 
         mLeftIndents = b.mLeftIndents;
         mRightIndents = b.mRightIndents;
-        setJustify(b.mJustify);
+        setJustificationMode(b.mJustificationMode);
 
         generate(b, b.mIncludePad, b.mIncludePad);
     }
@@ -693,7 +693,8 @@
             nSetupParagraph(b.mNativePtr, chs, paraEnd - paraStart,
                     firstWidth, firstWidthLineCount, restWidth,
                     variableTabStops, TAB_INCREMENT, b.mBreakStrategy, b.mHyphenationFrequency,
-                    b.mJustify);
+                    // TODO: Support more justification mode, e.g. letter spacing, stretching.
+                    b.mJustificationMode != Layout.JUSTIFICATION_MODE_NONE);
             if (mLeftIndents != null || mRightIndents != null) {
                 // TODO(raph) performance: it would be better to do this once per layout rather
                 // than once per paragraph, but that would require a change to the native
diff --git a/core/java/android/view/Choreographer.java b/core/java/android/view/Choreographer.java
index 3316f3a..aac5baa 100644
--- a/core/java/android/view/Choreographer.java
+++ b/core/java/android/view/Choreographer.java
@@ -529,6 +529,18 @@
         }
     }
 
+    /**
+     * Like {@link #getLastFrameTimeNanos}, but always returns the last frame time, not matter
+     * whether callbacks are currently running.
+     * @return The frame start time of the last frame, in the {@link System#nanoTime()} time base.
+     * @hide
+     */
+    public long getLastFrameTimeNanos() {
+        synchronized (mLock) {
+            return USE_FRAME_TIME ? mLastFrameTimeNanos : System.nanoTime();
+        }
+    }
+
     private void scheduleFrameLocked(long now) {
         if (!mFrameScheduled) {
             mFrameScheduled = true;
diff --git a/core/java/android/view/FocusFinder.java b/core/java/android/view/FocusFinder.java
index d25e5f0..f3c2421 100644
--- a/core/java/android/view/FocusFinder.java
+++ b/core/java/android/view/FocusFinder.java
@@ -54,7 +54,9 @@
     final Rect mOtherRect = new Rect();
     final Rect mBestCandidateRect = new Rect();
     private final UserSpecifiedFocusComparator mUserSpecifiedFocusComparator =
-            new UserSpecifiedFocusComparator();
+            new UserSpecifiedFocusComparator((v) -> v.getNextFocusForwardId());
+    private final UserSpecifiedFocusComparator mUserSpecifiedClusterComparator =
+            new UserSpecifiedFocusComparator((v) -> v.getNextClusterForwardId());
     private final FocusComparator mFocusComparator = new FocusComparator();
 
     private final ArrayList<View> mTempList = new ArrayList<View>();
@@ -150,6 +152,12 @@
             @Nullable View currentCluster,
             @View.FocusDirection int direction) {
         View next = null;
+        if (currentCluster != null) {
+            next = findNextUserSpecifiedKeyboardNavigationCluster(root, currentCluster, direction);
+            if (next != null) {
+                return next;
+            }
+        }
 
         final ArrayList<View> clusters = mTempList;
         try {
@@ -165,6 +173,16 @@
         return next;
     }
 
+    private View findNextUserSpecifiedKeyboardNavigationCluster(View root, View currentCluster,
+            int direction) {
+        View userSetNextCluster =
+                currentCluster.findUserSetNextKeyboardNavigationCluster(root, direction);
+        if (userSetNextCluster != null && userSetNextCluster.hasFocusable()) {
+            return userSetNextCluster;
+        }
+        return null;
+    }
+
     private View findNextUserSpecifiedFocus(ViewGroup root, View focused, int direction) {
         // check for user specified next focus
         View userSetNextFocus = focused.findUserSetNextFocus(root, direction);
@@ -238,6 +256,13 @@
             View currentCluster,
             List<View> clusters,
             @View.FocusDirection int direction) {
+        try {
+            // Note: This sort is stable.
+            mUserSpecifiedClusterComparator.setFocusables(clusters);
+            Collections.sort(clusters, mUserSpecifiedClusterComparator);
+        } finally {
+            mUserSpecifiedClusterComparator.recycle();
+        }
         final int count = clusters.size();
 
         switch (direction) {
@@ -802,6 +827,15 @@
         private final SparseBooleanArray mIsConnectedTo = new SparseBooleanArray();
         private final ArrayMap<View, View> mHeadsOfChains = new ArrayMap<View, View>();
         private final ArrayMap<View, Integer> mOriginalOrdinal = new ArrayMap<>();
+        private final NextIdGetter mNextIdGetter;
+
+        public interface NextIdGetter {
+            int get(View view);
+        }
+
+        UserSpecifiedFocusComparator(NextIdGetter nextIdGetter) {
+            mNextIdGetter = nextIdGetter;
+        }
 
         public void recycle() {
             mFocusables.clear();
@@ -810,14 +844,14 @@
             mOriginalOrdinal.clear();
         }
 
-        public void setFocusables(ArrayList<View> focusables) {
+        public void setFocusables(List<View> focusables) {
             for (int i = focusables.size() - 1; i >= 0; i--) {
                 final View view = focusables.get(i);
                 final int id = view.getId();
                 if (isValidId(id)) {
                     mFocusables.put(id, view);
                 }
-                final int nextId = view.getNextFocusForwardId();
+                final int nextId = mNextIdGetter.get(view);
                 if (isValidId(nextId)) {
                     mIsConnectedTo.put(nextId, true);
                 }
@@ -825,7 +859,7 @@
 
             for (int i = focusables.size() - 1; i >= 0; i--) {
                 final View view = focusables.get(i);
-                final int nextId = view.getNextFocusForwardId();
+                final int nextId = mNextIdGetter.get(view);
                 if (isValidId(nextId) && !mIsConnectedTo.get(view.getId())) {
                     setHeadOfChain(view);
                 }
@@ -838,7 +872,7 @@
 
         private void setHeadOfChain(View head) {
             for (View view = head; view != null;
-                    view = mFocusables.get(view.getNextFocusForwardId())) {
+                    view = mFocusables.get(mNextIdGetter.get(view))) {
                 final View otherHead = mHeadsOfChains.get(view);
                 if (otherHead != null) {
                     if (otherHead == head) {
@@ -866,7 +900,7 @@
                     return -1; // first is the head, it should be first
                 } else if (second == firstHead) {
                     return 1; // second is the head, it should be first
-                } else if (isValidId(first.getNextFocusForwardId())) {
+                } else if (isValidId(mNextIdGetter.get(first))) {
                     return -1; // first is not the end of the chain
                 } else {
                     return 1; // first is end of chain
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index b12a767..0221040 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -707,13 +707,16 @@
  * @attr ref android.R.styleable#View_isScrollContainer
  * @attr ref android.R.styleable#View_focusable
  * @attr ref android.R.styleable#View_focusableInTouchMode
+ * @attr ref android.R.styleable#View_focusedByDefault
  * @attr ref android.R.styleable#View_hapticFeedbackEnabled
  * @attr ref android.R.styleable#View_keepScreenOn
+ * @attr ref android.R.styleable#View_keyboardNavigationCluster
  * @attr ref android.R.styleable#View_layerType
  * @attr ref android.R.styleable#View_layoutDirection
  * @attr ref android.R.styleable#View_longClickable
  * @attr ref android.R.styleable#View_minHeight
  * @attr ref android.R.styleable#View_minWidth
+ * @attr ref android.R.styleable#View_nextClusterForward
  * @attr ref android.R.styleable#View_nextFocusDown
  * @attr ref android.R.styleable#View_nextFocusLeft
  * @attr ref android.R.styleable#View_nextFocusRight
@@ -4076,7 +4079,9 @@
     int mNextFocusForwardId = View.NO_ID;
 
     /**
-     * User-specified next keyboard navigation cluster.
+     * User-specified next keyboard navigation cluster in the {@link #FOCUS_FORWARD} direction.
+     *
+     * @see #findUserSetNextKeyboardNavigationCluster(View, int)
      */
     int mNextClusterForwardId = View.NO_ID;
 
@@ -9968,6 +9973,29 @@
         return null;
     }
 
+    /**
+     * If a user manually specified the next keyboard-navigation cluster for a particular direction,
+     * use the root to look up the view.
+     *
+     * @param root the root view of the hierarchy containing this view
+     * @param direction {@link #FOCUS_FORWARD} or {@link #FOCUS_BACKWARD}
+     * @return the user-specified next cluster, or {@code null} if there is none
+     */
+    View findUserSetNextKeyboardNavigationCluster(View root, @FocusDirection int direction) {
+        switch (direction) {
+            case FOCUS_FORWARD:
+                if (mNextClusterForwardId == View.NO_ID) return null;
+                return findViewInsideOutShouldExist(root, mNextClusterForwardId);
+            case FOCUS_BACKWARD: {
+                if (mID == View.NO_ID) return null;
+                final int id = mID;
+                return root.findViewByPredicateInsideOut(this,
+                        (Predicate<View>) t -> t.mNextClusterForwardId == id);
+            }
+        }
+        return null;
+    }
+
     private View findViewInsideOutShouldExist(View root, int id) {
         if (mMatchIdPredicate == null) {
             mMatchIdPredicate = new MatchIdPredicate();
diff --git a/core/java/android/view/ViewGroup.java b/core/java/android/view/ViewGroup.java
index c250226..9e1ceee 100644
--- a/core/java/android/view/ViewGroup.java
+++ b/core/java/android/view/ViewGroup.java
@@ -1258,15 +1258,18 @@
             return;
         }
 
-        final int count = mChildrenCount;
-        final View[] children = mChildren;
-
-        for (int i = 0; i < count; i++) {
-            final View child = children[i];
+        int count = 0;
+        final View[] visibleChildren = new View[mChildrenCount];
+        for (int i = 0; i < mChildrenCount; ++i) {
+            final View child = mChildren[i];
             if ((child.mViewFlags & VISIBILITY_MASK) == VISIBLE) {
-                child.addKeyboardNavigationClusters(views, direction);
+                visibleChildren[count++] = child;
             }
         }
+        Arrays.sort(visibleChildren, 0, count, FocusFinder.getFocusComparator(this, false));
+        for (int i = 0; i < count; ++i) {
+            visibleChildren[i].addKeyboardNavigationClusters(views, direction);
+        }
     }
 
     /**
@@ -7344,6 +7347,7 @@
 
     /** @hide */
     protected void onSetLayoutParams(View child, LayoutParams layoutParams) {
+        requestLayout();
     }
 
     /** @hide */
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 2e201bf..58ef0af 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -4660,6 +4660,7 @@
             if (cluster != null && cluster.isRootNamespace()) {
                 // the default cluster. Try to find a non-clustered view to focus.
                 if (cluster.restoreFocusNotInCluster()) {
+                    playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
                     return true;
                 }
                 // otherwise skip to next actual cluster
@@ -4667,6 +4668,7 @@
             }
 
             if (cluster != null && cluster.restoreFocusInCluster(realDirection)) {
+                playSoundEffect(SoundEffectConstants.getContantForFocusDirection(direction));
                 return true;
             }
 
diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.java
index 636fa7d..61920bd 100644
--- a/core/java/android/webkit/WebSettings.java
+++ b/core/java/android/webkit/WebSettings.java
@@ -411,8 +411,16 @@
     public abstract  boolean getUseWebViewBackgroundForOverscrollBackground();
 
     /**
-     * Sets whether the WebView should save form data. The default is true.
+     * Sets whether the WebView should save form data. In Android O, the
+     * platform has implemented a fully functional Autofill feature to store
+     * form data. Therefore, the Webview form data save feature is disabled.
+     *
+     * Note that the feature will continue to be supported on older versions of
+     * Android as before.
+     *
+     * This function does not have any effect.
      */
+    @Deprecated
     public abstract  void setSaveFormData(boolean save);
 
     /**
@@ -421,6 +429,7 @@
      * @return whether the WebView saves form data
      * @see #setSaveFormData
      */
+    @Deprecated
     public abstract boolean getSaveFormData();
 
     /**
diff --git a/core/java/android/webkit/WebViewDatabase.java b/core/java/android/webkit/WebViewDatabase.java
index 87d3c7b..982c57b 100644
--- a/core/java/android/webkit/WebViewDatabase.java
+++ b/core/java/android/webkit/WebViewDatabase.java
@@ -143,6 +143,7 @@
      * @return whether there is any saved data for web forms
      * @see #clearFormData
      */
+    @Deprecated
     public abstract boolean hasFormData();
 
     /**
@@ -150,5 +151,6 @@
      *
      * @see #hasFormData
      */
+    @Deprecated
     public abstract void clearFormData();
 }
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index 6f8df36..1b60ebc 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -56,6 +56,7 @@
 import android.graphics.RectF;
 import android.graphics.Typeface;
 import android.graphics.drawable.Drawable;
+import android.graphics.fonts.FontVariationAxis;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.os.LocaleList;
@@ -609,7 +610,7 @@
 
     private int mBreakStrategy;
     private int mHyphenationFrequency;
-    private boolean mJustify;
+    private int mJustificationMode;
 
     private int mMaximum = Integer.MAX_VALUE;
     private int mMaxMode = LINES;
@@ -820,7 +821,7 @@
         String fontFeatureSettings = null;
         mBreakStrategy = Layout.BREAK_STRATEGY_SIMPLE;
         mHyphenationFrequency = Layout.HYPHENATION_FREQUENCY_NONE;
-        mJustify = false;
+        mJustificationMode = Layout.JUSTIFICATION_MODE_NONE;
 
         final Resources.Theme theme = context.getTheme();
 
@@ -3737,14 +3738,15 @@
     }
 
     /**
-     * Enables or disables full justification. The default value is false. If the last line is too
-     * short for justification, the last line will be displayed with the alignment set by
-     * {@link android.view.View#setTextAlignment}.
+     * Set justification mode. The default value is {@link Layout#JUSTIFICATION_MODE_NONE}. If the
+     * last line is too short for justification, the last line will be displayed with the
+     * alignment set by {@link android.view.View#setTextAlignment}.
      *
-     * @see #getJustify()
+     * @see #getJustificationMode()
      */
-    public void setJustify(boolean justify) {
-        mJustify = justify;
+    @Layout.JustificationMode
+    public void setJustificationMode(@Layout.JustificationMode int justificationMode) {
+        mJustificationMode = justificationMode;
         if (mLayout != null) {
             nullLayouts();
             requestLayout();
@@ -3753,12 +3755,12 @@
     }
 
     /**
-     * @return true if currently paragraph justification is enabled.
+     * @return true if currently paragraph justification mode.
      *
-     * @see #setJustify(boolean)
+     * @see #setJustificationMode(int)
      */
-    public boolean getJustify() {
-        return mJustify;
+    public @Layout.JustificationMode int getJustificationMode() {
+        return mJustificationMode;
     }
 
     /**
@@ -3808,10 +3810,14 @@
      *         TextView. This function also returns true for empty settings string. Otherwise
      *         returns false.
      *
+     * @throws FontVariationAxis.InvalidFormatException
+     *         If given string is not a valid font variation settings format.
+     *
      * @see #getFontVariationSettings()
      * @see Paint#getFontVariationSettings() Paint.getFontVariationSettings()
      */
-    public boolean setFontVariationSettings(@Nullable String fontVariationSettings) {
+    public boolean setFontVariationSettings(@Nullable String fontVariationSettings)
+            throws FontVariationAxis.InvalidFormatException {
         final String existingSettings = mTextPaint.getFontVariationSettings();
         if (fontVariationSettings == existingSettings
                 || (fontVariationSettings != null
@@ -7678,7 +7684,7 @@
                         .setIncludePad(mIncludePad)
                         .setBreakStrategy(mBreakStrategy)
                         .setHyphenationFrequency(mHyphenationFrequency)
-                        .setJustify(mJustify)
+                        .setJustificationMode(mJustificationMode)
                         .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
                 if (shouldEllipsize) {
                     builder.setEllipsize(mEllipsize)
@@ -7720,7 +7726,7 @@
         if (mText instanceof Spannable) {
             result = new DynamicLayout(mText, mTransformed, mTextPaint, wantWidth,
                     alignment, mTextDir, mSpacingMult, mSpacingAdd, mIncludePad,
-                    mBreakStrategy, mHyphenationFrequency, mJustify,
+                    mBreakStrategy, mHyphenationFrequency, mJustificationMode,
                     getKeyListener() == null ? effectiveEllipsize : null, ellipsisWidth);
         } else {
             if (boring == UNKNOWN_BORING) {
@@ -7770,7 +7776,7 @@
                     .setIncludePad(mIncludePad)
                     .setBreakStrategy(mBreakStrategy)
                     .setHyphenationFrequency(mHyphenationFrequency)
-                    .setJustify(mJustify)
+                    .setJustificationMode(mJustificationMode)
                     .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE);
             if (shouldEllipsize) {
                 builder.setEllipsize(effectiveEllipsize)
@@ -8110,7 +8116,7 @@
                     .setIncludePad(getIncludeFontPadding())
                     .setBreakStrategy(getBreakStrategy())
                     .setHyphenationFrequency(getHyphenationFrequency())
-                    .setJustify(getJustify())
+                    .setJustificationMode(getJustificationMode())
                     .setMaxLines(mMaxMode == LINES ? mMaximum : Integer.MAX_VALUE)
                     .setTextDirection(getTextDirectionHeuristic());
 
diff --git a/core/java/com/android/internal/app/LRResolverRankerService.java b/core/java/com/android/internal/app/LRResolverRankerService.java
new file mode 100644
index 0000000..1cad7c7
--- /dev/null
+++ b/core/java/com/android/internal/app/LRResolverRankerService.java
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.internal.app;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Environment;
+import android.os.IBinder;
+import android.os.storage.StorageManager;
+import android.service.resolver.ResolverRankerService;
+import android.service.resolver.ResolverTarget;
+import android.util.ArrayMap;
+import android.util.Log;
+
+import java.io.File;
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * A Logistic Regression based {@link android.service.resolver.ResolverRankerService}, to be used
+ * in {@link ResolverComparator}.
+ */
+public final class LRResolverRankerService extends ResolverRankerService {
+    private static final String TAG = "LRResolverRankerService";
+
+    private static final boolean DEBUG = false;
+
+    private static final String PARAM_SHARED_PREF_NAME = "resolver_ranker_params";
+    private static final String BIAS_PREF_KEY = "bias";
+    private static final String VERSION_PREF_KEY = "version";
+
+    private static final String LAUNCH_SCORE = "launch";
+    private static final String TIME_SPENT_SCORE = "timeSpent";
+    private static final String RECENCY_SCORE = "recency";
+    private static final String CHOOSER_SCORE = "chooser";
+
+    // parameters for a pre-trained model, to initialize the app ranker. When updating the
+    // pre-trained model, please update these params, as well as initModel().
+    private static final int CURRENT_VERSION = 1;
+    private static final float LEARNING_RATE = 0.0001f;
+    private static final float REGULARIZER_PARAM = 0.0001f;
+
+    private SharedPreferences mParamSharedPref;
+    private ArrayMap<String, Float> mFeatureWeights;
+    private float mBias;
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        initModel();
+        return super.onBind(intent);
+    }
+
+    @Override
+    public void onPredictSharingProbabilities(List<ResolverTarget> targets) {
+        final int size = targets.size();
+        for (int i = 0; i < size; ++i) {
+            ResolverTarget target = targets.get(i);
+            ArrayMap<String, Float> features = getFeatures(target);
+            target.setSelectProbability(predict(features));
+        }
+    }
+
+    @Override
+    public void onTrainRankingModel(List<ResolverTarget> targets, int selectedPosition) {
+        final int size = targets.size();
+        if (selectedPosition < 0 || selectedPosition >= size) {
+            if (DEBUG) {
+                Log.d(TAG, "Invalid Position of Selected App " + selectedPosition);
+            }
+            return;
+        }
+        final ArrayMap<String, Float> positive = getFeatures(targets.get(selectedPosition));
+        final float positiveProbability = targets.get(selectedPosition).getSelectProbability();
+        final int targetSize = targets.size();
+        for (int i = 0; i < targetSize; ++i) {
+            if (i == selectedPosition) {
+                continue;
+            }
+            final ArrayMap<String, Float> negative = getFeatures(targets.get(i));
+            final float negativeProbability = targets.get(i).getSelectProbability();
+            if (negativeProbability > positiveProbability) {
+                update(negative, negativeProbability, false);
+                update(positive, positiveProbability, true);
+            }
+        }
+        commitUpdate();
+    }
+
+    private void initModel() {
+        mParamSharedPref = getParamSharedPref();
+        mFeatureWeights = new ArrayMap<>(4);
+        if (mParamSharedPref == null ||
+                mParamSharedPref.getInt(VERSION_PREF_KEY, 0) < CURRENT_VERSION) {
+            // Initializing the app ranker to a pre-trained model. When updating the pre-trained
+            // model, please increment CURRENT_VERSION, and update LEARNING_RATE and
+            // REGULARIZER_PARAM.
+            mBias = -1.6568f;
+            mFeatureWeights.put(LAUNCH_SCORE, 2.5543f);
+            mFeatureWeights.put(TIME_SPENT_SCORE, 2.8412f);
+            mFeatureWeights.put(RECENCY_SCORE, 0.269f);
+            mFeatureWeights.put(CHOOSER_SCORE, 4.2222f);
+        } else {
+            mBias = mParamSharedPref.getFloat(BIAS_PREF_KEY, 0.0f);
+            mFeatureWeights.put(LAUNCH_SCORE, mParamSharedPref.getFloat(LAUNCH_SCORE, 0.0f));
+            mFeatureWeights.put(
+                    TIME_SPENT_SCORE, mParamSharedPref.getFloat(TIME_SPENT_SCORE, 0.0f));
+            mFeatureWeights.put(RECENCY_SCORE, mParamSharedPref.getFloat(RECENCY_SCORE, 0.0f));
+            mFeatureWeights.put(CHOOSER_SCORE, mParamSharedPref.getFloat(CHOOSER_SCORE, 0.0f));
+        }
+    }
+
+    private ArrayMap<String, Float> getFeatures(ResolverTarget target) {
+        ArrayMap<String, Float> features = new ArrayMap<>(4);
+        features.put(RECENCY_SCORE, target.getRecencyScore());
+        features.put(TIME_SPENT_SCORE, target.getTimeSpentScore());
+        features.put(LAUNCH_SCORE, target.getLaunchScore());
+        features.put(CHOOSER_SCORE, target.getChooserScore());
+        return features;
+    }
+
+    private float predict(ArrayMap<String, Float> target) {
+        if (target == null) {
+            return 0.0f;
+        }
+        final int featureSize = target.size();
+        float sum = 0.0f;
+        for (int i = 0; i < featureSize; i++) {
+            String featureName = target.keyAt(i);
+            float weight = mFeatureWeights.getOrDefault(featureName, 0.0f);
+            sum += weight * target.valueAt(i);
+        }
+        return (float) (1.0 / (1.0 + Math.exp(-mBias - sum)));
+    }
+
+    private void update(ArrayMap<String, Float> target, float predict, boolean isSelected) {
+        if (target == null) {
+            return;
+        }
+        final int featureSize = target.size();
+        float error = isSelected ? 1.0f - predict : -predict;
+        for (int i = 0; i < featureSize; i++) {
+            String featureName = target.keyAt(i);
+            float currentWeight = mFeatureWeights.getOrDefault(featureName, 0.0f);
+            mBias += LEARNING_RATE * error;
+            currentWeight = currentWeight - LEARNING_RATE * REGULARIZER_PARAM * currentWeight +
+                    LEARNING_RATE * error * target.valueAt(i);
+            mFeatureWeights.put(featureName, currentWeight);
+        }
+        if (DEBUG) {
+            Log.d(TAG, "Weights: " + mFeatureWeights + " Bias: " + mBias);
+        }
+    }
+
+    private void commitUpdate() {
+        try {
+            SharedPreferences.Editor editor = mParamSharedPref.edit();
+            editor.putFloat(BIAS_PREF_KEY, mBias);
+            final int size = mFeatureWeights.size();
+            for (int i = 0; i < size; i++) {
+                editor.putFloat(mFeatureWeights.keyAt(i), mFeatureWeights.valueAt(i));
+            }
+            editor.putInt(VERSION_PREF_KEY, CURRENT_VERSION);
+            editor.apply();
+        } catch (Exception e) {
+            Log.e(TAG, "Failed to commit update" + e);
+        }
+    }
+
+    private SharedPreferences getParamSharedPref() {
+        // The package info in the context isn't initialized in the way it is for normal apps,
+        // so the standard, name-based context.getSharedPreferences doesn't work. Instead, we
+        // build the path manually below using the same policy that appears in ContextImpl.
+        if (DEBUG) {
+            Log.d(TAG, "Context Package Name: " + getPackageName());
+        }
+        final File prefsFile = new File(new File(
+                Environment.getDataUserCePackageDirectory(
+                        StorageManager.UUID_PRIVATE_INTERNAL, getUserId(), getPackageName()),
+                "shared_prefs"),
+                PARAM_SHARED_PREF_NAME + ".xml");
+        return getSharedPreferences(prefsFile, Context.MODE_PRIVATE);
+    }
+}
\ No newline at end of file
diff --git a/core/java/com/android/internal/app/ResolverActivity.java b/core/java/com/android/internal/app/ResolverActivity.java
index 3f1c9ad..622b708 100644
--- a/core/java/com/android/internal/app/ResolverActivity.java
+++ b/core/java/com/android/internal/app/ResolverActivity.java
@@ -530,6 +530,9 @@
             getMainThreadHandler().removeCallbacks(mPostListReadyRunnable);
             mPostListReadyRunnable = null;
         }
+        if (mAdapter != null && mAdapter.mResolverListController != null) {
+            mAdapter.mResolverListController.destroy();
+        }
     }
 
     @Override
diff --git a/core/java/com/android/internal/app/ResolverComparator.java b/core/java/com/android/internal/app/ResolverComparator.java
index 096fcb8..73b62a5 100644
--- a/core/java/com/android/internal/app/ResolverComparator.java
+++ b/core/java/com/android/internal/app/ResolverComparator.java
@@ -26,20 +26,34 @@
 import android.content.pm.ApplicationInfo;
 import android.content.pm.ComponentInfo;
 import android.content.pm.PackageManager;
+import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.ResolveInfo;
 import android.content.SharedPreferences;
+import android.content.ServiceConnection;
 import android.os.Environment;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.Looper;
+import android.os.Message;
+import android.os.RemoteException;
 import android.os.storage.StorageManager;
 import android.os.UserHandle;
+import android.service.resolver.IResolverRankerService;
+import android.service.resolver.IResolverRankerResult;
+import android.service.resolver.ResolverRankerService;
+import android.service.resolver.ResolverTarget;
 import android.text.TextUtils;
 import android.util.ArrayMap;
 import android.util.Log;
 import com.android.internal.app.ResolverActivity.ResolvedComponentInfo;
 
 import java.io.File;
+import java.lang.InterruptedException;
 import java.text.Collator;
 import java.util.ArrayList;
 import java.util.Comparator;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
@@ -61,11 +75,15 @@
 
     private static final float RECENCY_MULTIPLIER = 2.f;
 
-    // feature names used in ranking.
-    private static final String LAUNCH_SCORE = "launch";
-    private static final String TIME_SPENT_SCORE = "timeSpent";
-    private static final String RECENCY_SCORE = "recency";
-    private static final String CHOOSER_SCORE = "chooser";
+    // message types
+    private static final int RESOLVER_RANKER_SERVICE_RESULT = 0;
+    private static final int RESOLVER_RANKER_RESULT_TIMEOUT = 1;
+
+    // timeout for establishing connections with a ResolverRankerService.
+    private static final int CONNECTION_COST_TIMEOUT_MILLIS = 200;
+    // timeout for establishing connections with a ResolverRankerService, collecting features and
+    // predicting ranking scores.
+    private static final int WATCHDOG_TIMEOUT_MILLIS = 500;
 
     private final Collator mCollator;
     private final boolean mHttp;
@@ -74,18 +92,74 @@
     private final Map<String, UsageStats> mStats;
     private final long mCurrentTime;
     private final long mSinceTime;
-    private final LinkedHashMap<ComponentName, ScoredTarget> mScoredTargets = new LinkedHashMap<>();
+    private final LinkedHashMap<ComponentName, ResolverTarget> mTargetsDict = new LinkedHashMap<>();
     private final String mReferrerPackage;
+    private final Object mLock = new Object();
+    private ArrayList<ResolverTarget> mTargets;
     private String mContentType;
     private String[] mAnnotations;
     private String mAction;
-    private LogisticRegressionAppRanker mRanker;
+    private IResolverRankerService mRanker;
+    private ResolverRankerServiceConnection mConnection;
+    private AfterCompute mAfterCompute;
+    private Context mContext;
+    private CountDownLatch mConnectSignal;
 
-    public ResolverComparator(Context context, Intent intent, String referrerPackage) {
+    private final Handler mHandler = new Handler(Looper.getMainLooper()) {
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+                case RESOLVER_RANKER_SERVICE_RESULT:
+                    if (DEBUG) {
+                        Log.d(TAG, "RESOLVER_RANKER_SERVICE_RESULT");
+                    }
+                    if (mHandler.hasMessages(RESOLVER_RANKER_RESULT_TIMEOUT)) {
+                        if (msg.obj != null) {
+                            final List<ResolverTarget> receivedTargets =
+                                    (List<ResolverTarget>) msg.obj;
+                            if (receivedTargets != null && mTargets != null
+                                    && receivedTargets.size() == mTargets.size()) {
+                                final int size = mTargets.size();
+                                for (int i = 0; i < size; ++i) {
+                                    mTargets.get(i).setSelectProbability(
+                                            receivedTargets.get(i).getSelectProbability());
+                                }
+                            } else {
+                                Log.e(TAG, "Sizes of sent and received ResolverTargets diff.");
+                            }
+                        } else {
+                            Log.e(TAG, "Receiving null prediction results.");
+                        }
+                        mHandler.removeMessages(RESOLVER_RANKER_RESULT_TIMEOUT);
+                        mAfterCompute.afterCompute();
+                    }
+                    break;
+
+                case RESOLVER_RANKER_RESULT_TIMEOUT:
+                    if (DEBUG) {
+                        Log.d(TAG, "RESOLVER_RANKER_RESULT_TIMEOUT; unbinding services");
+                    }
+                    mHandler.removeMessages(RESOLVER_RANKER_SERVICE_RESULT);
+                    mAfterCompute.afterCompute();
+                    break;
+
+                default:
+                    super.handleMessage(msg);
+            }
+        }
+    };
+
+    public interface AfterCompute {
+        public void afterCompute ();
+    }
+
+    public ResolverComparator(Context context, Intent intent, String referrerPackage,
+                              AfterCompute afterCompute) {
         mCollator = Collator.getInstance(context.getResources().getConfiguration().locale);
         String scheme = intent.getScheme();
         mHttp = "http".equals(scheme) || "https".equals(scheme);
         mReferrerPackage = referrerPackage;
+        mAfterCompute = afterCompute;
+        mContext = context;
 
         mPm = context.getPackageManager();
         mUsm = (UsageStatsManager) context.getSystemService(Context.USAGE_STATS_SERVICE);
@@ -96,9 +170,9 @@
         mContentType = intent.getType();
         getContentAnnotations(intent);
         mAction = intent.getAction();
-        mRanker = new LogisticRegressionAppRanker(context);
     }
 
+    // get annotations of content from intent.
     public void getContentAnnotations(Intent intent) {
         ArrayList<String> annotations = intent.getStringArrayListExtra(
                 Intent.EXTRA_CONTENT_ANNOTATIONS);
@@ -114,20 +188,24 @@
         }
     }
 
+    public void setCallBack(AfterCompute afterCompute) {
+        mAfterCompute = afterCompute;
+    }
+
+    // compute features for each target according to usage stats of targets.
     public void compute(List<ResolvedComponentInfo> targets) {
-        mScoredTargets.clear();
+        reset();
 
         final long recentSinceTime = mCurrentTime - RECENCY_TIME_PERIOD;
 
-        long mostRecentlyUsedTime = recentSinceTime + 1;
-        long mostTimeSpent = 1;
-        int mostLaunched = 1;
-        int mostSelected = 1;
+        float mostRecencyScore = 1.0f;
+        float mostTimeSpentScore = 1.0f;
+        float mostLaunchScore = 1.0f;
+        float mostChooserScore = 1.0f;
 
         for (ResolvedComponentInfo target : targets) {
-            final ScoredTarget scoredTarget
-                    = new ScoredTarget(target.getResolveInfoAt(0).activityInfo);
-            mScoredTargets.put(target.name, scoredTarget);
+            final ResolverTarget resolverTarget = new ResolverTarget();
+            mTargetsDict.put(target.name, resolverTarget);
             final UsageStats pkStats = mStats.get(target.name.getPackageName());
             if (pkStats != null) {
                 // Only count recency for apps that weren't the caller
@@ -135,31 +213,33 @@
                 // Persistent processes muck this up, so omit them too.
                 if (!target.name.getPackageName().equals(mReferrerPackage)
                         && !isPersistentProcess(target)) {
-                    final long lastTimeUsed = pkStats.getLastTimeUsed();
-                    scoredTarget.lastTimeUsed = lastTimeUsed;
-                    if (lastTimeUsed > mostRecentlyUsedTime) {
-                        mostRecentlyUsedTime = lastTimeUsed;
+                    final float recencyScore =
+                            (float) Math.max(pkStats.getLastTimeUsed() - recentSinceTime, 0);
+                    resolverTarget.setRecencyScore(recencyScore);
+                    if (recencyScore > mostRecencyScore) {
+                        mostRecencyScore = recencyScore;
                     }
                 }
-                final long timeSpent = pkStats.getTotalTimeInForeground();
-                scoredTarget.timeSpent = timeSpent;
-                if (timeSpent > mostTimeSpent) {
-                    mostTimeSpent = timeSpent;
+                final float timeSpentScore = (float) pkStats.getTotalTimeInForeground();
+                resolverTarget.setTimeSpentScore(timeSpentScore);
+                if (timeSpentScore > mostTimeSpentScore) {
+                    mostTimeSpentScore = timeSpentScore;
                 }
-                final int launched = pkStats.mLaunchCount;
-                scoredTarget.launchCount = launched;
-                if (launched > mostLaunched) {
-                    mostLaunched = launched;
+                final float launchScore = (float) pkStats.mLaunchCount;
+                resolverTarget.setLaunchScore(launchScore);
+                if (launchScore > mostLaunchScore) {
+                    mostLaunchScore = launchScore;
                 }
 
-                int selected = 0;
+                float chooserScore = 0.0f;
                 if (pkStats.mChooserCounts != null && mAction != null
                         && pkStats.mChooserCounts.get(mAction) != null) {
-                    selected = pkStats.mChooserCounts.get(mAction).getOrDefault(mContentType, 0);
+                    chooserScore = (float) pkStats.mChooserCounts.get(mAction)
+                            .getOrDefault(mContentType, 0);
                     if (mAnnotations != null) {
                         final int size = mAnnotations.length;
                         for (int i = 0; i < size; i++) {
-                            selected += pkStats.mChooserCounts.get(mAction)
+                            chooserScore += (float) pkStats.mChooserCounts.get(mAction)
                                     .getOrDefault(mAnnotations[i], 0);
                         }
                     }
@@ -169,44 +249,37 @@
                         Log.d(TAG, "Action type is null");
                     } else {
                         Log.d(TAG, "Chooser Count of " + mAction + ":" +
-                                target.name.getPackageName() + " is " + Integer.toString(selected));
+                                target.name.getPackageName() + " is " +
+                                Float.toString(chooserScore));
                     }
                 }
-                scoredTarget.chooserCount = selected;
-                if (selected > mostSelected) {
-                    mostSelected = selected;
+                resolverTarget.setChooserScore(chooserScore);
+                if (chooserScore > mostChooserScore) {
+                    mostChooserScore = chooserScore;
                 }
             }
         }
 
-
         if (DEBUG) {
-            Log.d(TAG, "compute - mostRecentlyUsedTime: " + mostRecentlyUsedTime
-                    + " mostTimeSpent: " + mostTimeSpent
-                    + " recentSinceTime: " + recentSinceTime
-                    + " mostLaunched: " + mostLaunched);
+            Log.d(TAG, "compute - mostRecencyScore: " + mostRecencyScore
+                    + " mostTimeSpentScore: " + mostTimeSpentScore
+                    + " mostLaunchScore: " + mostLaunchScore
+                    + " mostChooserScore: " + mostChooserScore);
         }
 
-        for (ScoredTarget target : mScoredTargets.values()) {
-            final float recency = (float) Math.max(target.lastTimeUsed - recentSinceTime, 0)
-                    / (mostRecentlyUsedTime - recentSinceTime);
-            target.setFeatures((float) target.launchCount / mostLaunched,
-                    (float) target.timeSpent / mostTimeSpent,
-                    recency * recency * RECENCY_MULTIPLIER,
-                    (float) target.chooserCount / mostSelected);
-            target.selectProb = mRanker.predict(target.getFeatures());
+        mTargets = new ArrayList<>(mTargetsDict.values());
+        for (ResolverTarget target : mTargets) {
+            final float recency = target.getRecencyScore() / mostRecencyScore;
+            setFeatures(target, recency * recency * RECENCY_MULTIPLIER,
+                    target.getLaunchScore() / mostLaunchScore,
+                    target.getTimeSpentScore() / mostTimeSpentScore,
+                    target.getChooserScore() / mostChooserScore);
+            addDefaultSelectProbability(target);
             if (DEBUG) {
                 Log.d(TAG, "Scores: " + target);
             }
         }
-    }
-
-    static boolean isPersistentProcess(ResolvedComponentInfo rci) {
-        if (rci != null && rci.getCount() > 0) {
-            return (rci.getResolveInfoAt(0).activityInfo.applicationInfo.flags &
-                    ApplicationInfo.FLAG_PERSISTENT) != 0;
-        }
-        return false;
+        predictSelectProbabilities(mTargets);
     }
 
     @Override
@@ -245,16 +318,16 @@
         // Pinned items stay stable within a normal lexical sort and ignore scoring.
         if (!lPinned && !rPinned) {
             if (mStats != null) {
-                final ScoredTarget lhsTarget = mScoredTargets.get(new ComponentName(
+                final ResolverTarget lhsTarget = mTargetsDict.get(new ComponentName(
                         lhs.activityInfo.packageName, lhs.activityInfo.name));
-                final ScoredTarget rhsTarget = mScoredTargets.get(new ComponentName(
+                final ResolverTarget rhsTarget = mTargetsDict.get(new ComponentName(
                         rhs.activityInfo.packageName, rhs.activityInfo.name));
 
-                final int selectProbDiff = Float.compare(
-                        rhsTarget.selectProb, lhsTarget.selectProb);
+                final int selectProbabilityDiff = Float.compare(
+                        rhsTarget.getSelectProbability(), lhsTarget.getSelectProbability());
 
-                if (selectProbDiff != 0) {
-                    return selectProbDiff > 0 ? 1 : -1;
+                if (selectProbabilityDiff != 0) {
+                    return selectProbabilityDiff > 0 ? 1 : -1;
                 }
             }
         }
@@ -268,177 +341,234 @@
     }
 
     public float getScore(ComponentName name) {
-        final ScoredTarget target = mScoredTargets.get(name);
+        final ResolverTarget target = mTargetsDict.get(name);
         if (target != null) {
-            return target.selectProb;
+            return target.getSelectProbability();
         }
         return 0;
     }
 
-    static class ScoredTarget {
-        public final ComponentInfo componentInfo;
-        public long lastTimeUsed;
-        public long timeSpent;
-        public long launchCount;
-        public long chooserCount;
-        public ArrayMap<String, Float> features;
-        public float selectProb;
-
-        public ScoredTarget(ComponentInfo ci) {
-            componentInfo = ci;
-            features = new ArrayMap<>(5);
-        }
-
-        @Override
-        public String toString() {
-            return "ScoredTarget{" + componentInfo
-                    + " lastTimeUsed: " + lastTimeUsed
-                    + " timeSpent: " + timeSpent
-                    + " launchCount: " + launchCount
-                    + " chooserCount: " + chooserCount
-                    + " selectProb: " + selectProb
-                    + "}";
-        }
-
-        public void setFeatures(float launchCountScore, float usageTimeScore, float recencyScore,
-                                float chooserCountScore) {
-            features.put(LAUNCH_SCORE, launchCountScore);
-            features.put(TIME_SPENT_SCORE, usageTimeScore);
-            features.put(RECENCY_SCORE, recencyScore);
-            features.put(CHOOSER_SCORE, chooserCountScore);
-        }
-
-        public ArrayMap<String, Float> getFeatures() {
-            return features;
-        }
-    }
-
     public void updateChooserCounts(String packageName, int userId, String action) {
         if (mUsm != null) {
             mUsm.reportChooserSelection(packageName, userId, mContentType, mAnnotations, action);
         }
     }
 
+    // update ranking model when the connection to it is valid.
     public void updateModel(ComponentName componentName) {
-        if (mScoredTargets == null || componentName == null ||
-                !mScoredTargets.containsKey(componentName)) {
-            return;
-        }
-        ScoredTarget selected = mScoredTargets.get(componentName);
-        for (ComponentName targetComponent : mScoredTargets.keySet()) {
-            if (targetComponent.equals(componentName)) {
-                continue;
-            }
-            ScoredTarget target = mScoredTargets.get(targetComponent);
-            // A potential point of optimization. Save updates or derive a closed form for the
-            // positive case, to avoid calculating them repeatedly.
-            if (target.selectProb >= selected.selectProb) {
-                mRanker.update(target.getFeatures(), target.selectProb, false);
-                mRanker.update(selected.getFeatures(), selected.selectProb, true);
+        synchronized (mLock) {
+            if (mRanker != null) {
+                try {
+                    int selectedPos = new ArrayList<ComponentName>(mTargetsDict.keySet())
+                            .indexOf(componentName);
+                    if (selectedPos > 0) {
+                        mRanker.train(mTargets, selectedPos);
+                    } else {
+                        if (DEBUG) {
+                            Log.d(TAG, "Selected a unknown component: " + componentName);
+                        }
+                    }
+                } catch (RemoteException e) {
+                    Log.e(TAG, "Error in Train: " + e);
+                }
+            } else {
+                if (DEBUG) {
+                    Log.d(TAG, "Ranker is null; skip updateModel.");
+                }
             }
         }
-        mRanker.commitUpdate();
     }
 
-    class LogisticRegressionAppRanker {
-        private static final String PARAM_SHARED_PREF_NAME = "resolver_ranker_params";
-        private static final String BIAS_PREF_KEY = "bias";
-        private static final String VERSION_PREF_KEY = "version";
-
-        // parameters for a pre-trained model, to initialize the app ranker. When updating the
-        // pre-trained model, please update these params, as well as initModel().
-        private static final int CURRENT_VERSION = 1;
-        private static final float LEARNING_RATE = 0.0001f;
-        private static final float REGULARIZER_PARAM = 0.0001f;
-
-        private SharedPreferences mParamSharedPref;
-        private ArrayMap<String, Float> mFeatureWeights;
-        private float mBias;
-
-        public LogisticRegressionAppRanker(Context context) {
-            mParamSharedPref = getParamSharedPref(context);
-            initModel();
+    // unbind the service and clear unhandled messges.
+    public void destroy() {
+        mHandler.removeMessages(RESOLVER_RANKER_SERVICE_RESULT);
+        mHandler.removeMessages(RESOLVER_RANKER_RESULT_TIMEOUT);
+        if (mConnection != null) {
+            mContext.unbindService(mConnection);
+            mConnection.destroy();
         }
-
-        public float predict(ArrayMap<String, Float> target) {
-            if (target == null) {
-                return 0.0f;
-            }
-            final int featureSize = target.size();
-            float sum = 0.0f;
-            for (int i = 0; i < featureSize; i++) {
-                String featureName = target.keyAt(i);
-                float weight = mFeatureWeights.getOrDefault(featureName, 0.0f);
-                sum += weight * target.valueAt(i);
-            }
-            return (float) (1.0 / (1.0 + Math.exp(-mBias - sum)));
+        if (DEBUG) {
+            Log.d(TAG, "Unbinded Resolver Ranker.");
         }
+    }
 
-        public void update(ArrayMap<String, Float> target, float predict, boolean isSelected) {
-            if (target == null) {
+    // connect to a ranking service.
+    private void initRanker(Context context) {
+        synchronized (mLock) {
+            if (mConnection != null && mRanker != null) {
+                if (DEBUG) {
+                    Log.d(TAG, "Ranker still exists; reusing the existing one.");
+                }
                 return;
             }
-            final int featureSize = target.size();
-            float error = isSelected ? 1.0f - predict : -predict;
-            for (int i = 0; i < featureSize; i++) {
-                String featureName = target.keyAt(i);
-                float currentWeight = mFeatureWeights.getOrDefault(featureName, 0.0f);
-                mBias += LEARNING_RATE * error;
-                currentWeight = currentWeight - LEARNING_RATE * REGULARIZER_PARAM * currentWeight +
-                        LEARNING_RATE * error * target.valueAt(i);
-                mFeatureWeights.put(featureName, currentWeight);
+        }
+        Intent intent = resolveRankerService();
+        if (intent == null) {
+            return;
+        }
+        mConnectSignal = new CountDownLatch(1);
+        mConnection = new ResolverRankerServiceConnection(mConnectSignal);
+        context.bindServiceAsUser(intent, mConnection, Context.BIND_AUTO_CREATE, UserHandle.SYSTEM);
+    }
+
+    // resolve the service for ranking.
+    private Intent resolveRankerService() {
+        Intent intent = new Intent(ResolverRankerService.SERVICE_INTERFACE);
+        final List<ResolveInfo> resolveInfos = mPm.queryIntentServices(intent, 0);
+        for (ResolveInfo resolveInfo : resolveInfos) {
+            if (resolveInfo == null || resolveInfo.serviceInfo == null
+                    || resolveInfo.serviceInfo.applicationInfo == null) {
+                if (DEBUG) {
+                    Log.d(TAG, "Failed to retrieve a ranker: " + resolveInfo);
+                }
+                continue;
+            }
+            ComponentName componentName = new ComponentName(
+                    resolveInfo.serviceInfo.applicationInfo.packageName,
+                    resolveInfo.serviceInfo.name);
+            try {
+                final String perm = mPm.getServiceInfo(componentName, 0).permission;
+                if (!ResolverRankerService.BIND_PERMISSION.equals(perm)) {
+                    Log.w(TAG, "ResolverRankerService " + componentName + " does not require"
+                            + " permission " + ResolverRankerService.BIND_PERMISSION
+                            + " - this service will not be queried for ResolverComparator."
+                            + " add android:permission=\""
+                            + ResolverRankerService.BIND_PERMISSION + "\""
+                            + " to the <service> tag for " + componentName
+                            + " in the manifest.");
+                    continue;
+                }
+            } catch (NameNotFoundException e) {
+                Log.e(TAG, "Could not look up service " + componentName
+                        + "; component name not found");
+                continue;
             }
             if (DEBUG) {
-                Log.d(TAG, "Weights: " + mFeatureWeights + " Bias: " + mBias);
+                Log.d(TAG, "Succeeded to retrieve a ranker: " + componentName);
             }
+            intent.setComponent(componentName);
+            return intent;
+        }
+        return null;
+    }
+
+    // set a watchdog, to avoid waiting for ranking service for too long.
+    private void startWatchDog(int timeOutLimit) {
+        if (DEBUG) Log.d(TAG, "Setting watchdog timer for " + timeOutLimit + "ms");
+        if (mHandler == null) {
+            Log.d(TAG, "Error: Handler is Null; Needs to be initialized.");
+        }
+        mHandler.sendEmptyMessageDelayed(RESOLVER_RANKER_RESULT_TIMEOUT, timeOutLimit);
+    }
+
+    private class ResolverRankerServiceConnection implements ServiceConnection {
+        private final CountDownLatch mConnectSignal;
+
+        public ResolverRankerServiceConnection(CountDownLatch connectSignal) {
+            mConnectSignal = connectSignal;
         }
 
-        public void commitUpdate() {
-            SharedPreferences.Editor editor = mParamSharedPref.edit();
-            editor.putFloat(BIAS_PREF_KEY, mBias);
-            final int size = mFeatureWeights.size();
-            for (int i = 0; i < size; i++) {
-                editor.putFloat(mFeatureWeights.keyAt(i), mFeatureWeights.valueAt(i));
+        public final IResolverRankerResult resolverRankerResult =
+                new IResolverRankerResult.Stub() {
+            @Override
+            public void sendResult(List<ResolverTarget> targets) throws RemoteException {
+                if (DEBUG) {
+                    Log.d(TAG, "Sending Result back to Resolver: " + targets);
+                }
+                synchronized (mLock) {
+                    final Message msg = Message.obtain();
+                    msg.what = RESOLVER_RANKER_SERVICE_RESULT;
+                    msg.obj = targets;
+                    mHandler.sendMessage(msg);
+                }
             }
-            editor.putInt(VERSION_PREF_KEY, CURRENT_VERSION);
-            editor.apply();
-        }
+        };
 
-        private SharedPreferences getParamSharedPref(Context context) {
-            // The package info in the context isn't initialized in the way it is for normal apps,
-            // so the standard, name-based context.getSharedPreferences doesn't work. Instead, we
-            // build the path manually below using the same policy that appears in ContextImpl.
+        @Override
+        public void onServiceConnected(ComponentName name, IBinder service) {
             if (DEBUG) {
-                Log.d(TAG, "Context Package Name: " + context.getPackageName());
+                Log.d(TAG, "onServiceConnected: " + name);
             }
-            final File prefsFile = new File(new File(
-                    Environment.getDataUserCePackageDirectory(StorageManager.UUID_PRIVATE_INTERNAL,
-                            context.getUserId(), context.getPackageName()),
-                    "shared_prefs"),
-                    PARAM_SHARED_PREF_NAME + ".xml");
-            return context.getSharedPreferences(prefsFile, Context.MODE_PRIVATE);
+            synchronized (mLock) {
+                mRanker = IResolverRankerService.Stub.asInterface(service);
+                mConnectSignal.countDown();
+            }
         }
 
-        private void initModel() {
-            mFeatureWeights = new ArrayMap<>(4);
-            if (mParamSharedPref == null ||
-                    mParamSharedPref.getInt(VERSION_PREF_KEY, 0) < CURRENT_VERSION) {
-                // Initializing the app ranker to a pre-trained model. When updating the pre-trained
-                // model, please increment CURRENT_VERSION, and update LEARNING_RATE and
-                // REGULARIZER_PARAM.
-                mBias = -1.6568f;
-                mFeatureWeights.put(LAUNCH_SCORE, 2.5543f);
-                mFeatureWeights.put(TIME_SPENT_SCORE, 2.8412f);
-                mFeatureWeights.put(RECENCY_SCORE, 0.269f);
-                mFeatureWeights.put(CHOOSER_SCORE, 4.2222f);
-            } else {
-                mBias = mParamSharedPref.getFloat(BIAS_PREF_KEY, 0.0f);
-                mFeatureWeights.put(LAUNCH_SCORE, mParamSharedPref.getFloat(LAUNCH_SCORE, 0.0f));
-                mFeatureWeights.put(
-                        TIME_SPENT_SCORE, mParamSharedPref.getFloat(TIME_SPENT_SCORE, 0.0f));
-                mFeatureWeights.put(RECENCY_SCORE, mParamSharedPref.getFloat(RECENCY_SCORE, 0.0f));
-                mFeatureWeights.put(CHOOSER_SCORE, mParamSharedPref.getFloat(CHOOSER_SCORE, 0.0f));
+        @Override
+        public void onServiceDisconnected(ComponentName name) {
+            if (DEBUG) {
+                Log.d(TAG, "onServiceDisconnected: " + name);
+            }
+            synchronized (mLock) {
+                destroy();
             }
         }
+
+        public void destroy() {
+            synchronized (mLock) {
+                mRanker = null;
+            }
+        }
+    }
+
+    private void reset() {
+        mTargetsDict.clear();
+        mTargets = null;
+        startWatchDog(WATCHDOG_TIMEOUT_MILLIS);
+        initRanker(mContext);
+    }
+
+    // predict select probabilities if ranking service is valid.
+    private void predictSelectProbabilities(List<ResolverTarget> targets) {
+        if (mConnection == null) {
+            if (DEBUG) {
+                Log.d(TAG, "Has not found valid ResolverRankerService; Skip Prediction");
+            }
+            return;
+        } else {
+            try {
+                mConnectSignal.await(CONNECTION_COST_TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
+                synchronized (mLock) {
+                    if (mRanker != null) {
+                        mRanker.predict(targets, mConnection.resolverRankerResult);
+                        return;
+                    } else {
+                        if (DEBUG) {
+                            Log.d(TAG, "Ranker has not been initialized; skip predict.");
+                        }
+                    }
+                }
+            } catch (InterruptedException e) {
+                Log.e(TAG, "Error in Wait for Service Connection.");
+            } catch (RemoteException e) {
+                Log.e(TAG, "Error in Predict: " + e);
+            }
+        }
+        mAfterCompute.afterCompute();
+    }
+
+    // adds select prob as the default values, according to a pre-trained Logistic Regression model.
+    private void addDefaultSelectProbability(ResolverTarget target) {
+        float sum = 2.5543f * target.getLaunchScore() + 2.8412f * target.getTimeSpentScore() +
+                0.269f * target.getRecencyScore() + 4.2222f * target.getChooserScore();
+        target.setSelectProbability((float) (1.0 / (1.0 + Math.exp(1.6568f - sum))));
+    }
+
+    // sets features for each target
+    private void setFeatures(ResolverTarget target, float recencyScore, float launchScore,
+                             float timeSpentScore, float chooserScore) {
+        target.setRecencyScore(recencyScore);
+        target.setLaunchScore(launchScore);
+        target.setTimeSpentScore(timeSpentScore);
+        target.setChooserScore(chooserScore);
+    }
+
+    static boolean isPersistentProcess(ResolvedComponentInfo rci) {
+        if (rci != null && rci.getCount() > 0) {
+            return (rci.getResolveInfoAt(0).activityInfo.applicationInfo.flags &
+                    ApplicationInfo.FLAG_PERSISTENT) != 0;
+        }
+        return false;
     }
 }
diff --git a/core/java/com/android/internal/app/ResolverListController.java b/core/java/com/android/internal/app/ResolverListController.java
index 4071ff4..e8bebb7 100644
--- a/core/java/com/android/internal/app/ResolverListController.java
+++ b/core/java/com/android/internal/app/ResolverListController.java
@@ -32,8 +32,10 @@
 import android.util.Log;
 import com.android.internal.annotations.VisibleForTesting;
 
+import java.lang.InterruptedException;
 import java.util.ArrayList;
 import java.util.Collections;
+import java.util.concurrent.CountDownLatch;
 import java.util.List;
 
 /**
@@ -205,14 +207,42 @@
         return listToReturn;
     }
 
+    private class ComputeCallback implements ResolverComparator.AfterCompute {
+
+        private CountDownLatch mFinishComputeSignal;
+
+        public ComputeCallback(CountDownLatch finishComputeSignal) {
+            mFinishComputeSignal = finishComputeSignal;
+        }
+
+        public void afterCompute () {
+            mFinishComputeSignal.countDown();
+        }
+    }
+
     @VisibleForTesting
     @WorkerThread
     public void sort(List<ResolverActivity.ResolvedComponentInfo> inputList) {
+        final CountDownLatch finishComputeSignal = new CountDownLatch(1);
+        ComputeCallback callback = new ComputeCallback(finishComputeSignal);
         if (mResolverComparator == null) {
-            mResolverComparator = new ResolverComparator(mContext, mTargetIntent, mReferrerPackage);
+            mResolverComparator =
+                    new ResolverComparator(mContext, mTargetIntent, mReferrerPackage, callback);
+        } else {
+            mResolverComparator.setCallBack(callback);
         }
-        mResolverComparator.compute(inputList);
-        Collections.sort(inputList, mResolverComparator);
+        try {
+            long beforeRank = System.currentTimeMillis();
+            mResolverComparator.compute(inputList);
+            finishComputeSignal.await();
+            Collections.sort(inputList, mResolverComparator);
+            long afterRank = System.currentTimeMillis();
+            if (DEBUG) {
+                Log.d(TAG, "Time Cost: " + Long.toString(afterRank - beforeRank));
+            }
+        } catch (InterruptedException e) {
+            Log.e(TAG, "Compute & Sort was interrupted: " + e);
+        }
     }
 
     private static boolean isSameResolvedComponent(ResolveInfo a,
@@ -233,7 +263,7 @@
     @VisibleForTesting
     public float getScore(ResolverActivity.DisplayResolveInfo target) {
         if (mResolverComparator == null) {
-            mResolverComparator = new ResolverComparator(mContext, mTargetIntent, mReferrerPackage);
+            return 0.0f;
         }
         return mResolverComparator.getScore(target.getResolvedComponentName());
     }
@@ -249,4 +279,10 @@
             mResolverComparator.updateChooserCounts(packageName, userId, action);
         }
     }
+
+    public void destroy() {
+        if (mResolverComparator != null) {
+            mResolverComparator.destroy();
+        }
+    }
 }
diff --git a/core/java/com/android/internal/policy/BackdropFrameRenderer.java b/core/java/com/android/internal/policy/BackdropFrameRenderer.java
index 1abb59b..a70209c 100644
--- a/core/java/com/android/internal/policy/BackdropFrameRenderer.java
+++ b/core/java/com/android/internal/policy/BackdropFrameRenderer.java
@@ -74,6 +74,7 @@
     private final Rect mOldStableInsets = new Rect();
     private final Rect mSystemInsets = new Rect();
     private final Rect mStableInsets = new Rect();
+    private final Rect mTmpRect = new Rect();
 
     public BackdropFrameRenderer(DecorView decorView, ThreadedRenderer renderer, Rect initialBounds,
             Drawable resizingBackgroundDrawable, Drawable captionBackgroundDrawable,
@@ -370,12 +371,6 @@
         DisplayListCanvas canvas = mSystemBarBackgroundNode.start(width, height);
         mSystemBarBackgroundNode.setLeftTopRightBottom(left, top, left + width, top + height);
         final int topInset = DecorView.getColorViewTopInset(mStableInsets.top, mSystemInsets.top);
-        final int bottomInset = DecorView.getColorViewBottomInset(stableInsets.bottom,
-                systemInsets.bottom);
-        final int rightInset = DecorView.getColorViewRightInset(stableInsets.right,
-                systemInsets.right);
-        final int leftInset = DecorView.getColorViewLeftInset(stableInsets.left,
-                systemInsets.left);
         if (mStatusBarColor != null) {
             mStatusBarColor.setBounds(0, 0, left + width, topInset);
             mStatusBarColor.draw(canvas);
@@ -385,14 +380,8 @@
         // don't want the navigation bar background be moving around when resizing in docked mode.
         // However, we need it for the transitions into/out of docked mode.
         if (mNavigationBarColor != null && fullscreen) {
-            final int size = DecorView.getNavBarSize(bottomInset, rightInset, leftInset);
-            if (DecorView.isNavBarToRightEdge(bottomInset, rightInset)) {
-                mNavigationBarColor.setBounds(width - size, 0, width, height);
-            } else if (DecorView.isNavBarToLeftEdge(bottomInset, leftInset)) {
-                mNavigationBarColor.setBounds(0, 0, size, height);
-            } else {
-                mNavigationBarColor.setBounds(0, height - size, width, height);
-            }
+            DecorView.getNavigationBarRect(width, height, stableInsets, systemInsets, mTmpRect);
+            mNavigationBarColor.setBounds(mTmpRect);
             mNavigationBarColor.draw(canvas);
         }
         mSystemBarBackgroundNode.end(canvas);
diff --git a/core/java/com/android/internal/policy/DecorView.java b/core/java/com/android/internal/policy/DecorView.java
index a8e16c9..653796d 100644
--- a/core/java/com/android/internal/policy/DecorView.java
+++ b/core/java/com/android/internal/policy/DecorView.java
@@ -119,6 +119,21 @@
     // The height of a window which has not in DIP.
     private final static int DECOR_SHADOW_UNFOCUSED_HEIGHT_IN_DIP = 5;
 
+    public static final ColorViewAttributes STATUS_BAR_COLOR_VIEW_ATTRIBUTES =
+            new ColorViewAttributes(SYSTEM_UI_FLAG_FULLSCREEN, FLAG_TRANSLUCENT_STATUS,
+                    Gravity.TOP, Gravity.LEFT, Gravity.RIGHT,
+                    Window.STATUS_BAR_BACKGROUND_TRANSITION_NAME,
+                    com.android.internal.R.id.statusBarBackground,
+                    FLAG_FULLSCREEN);
+
+    public static final ColorViewAttributes NAVIGATION_BAR_COLOR_VIEW_ATTRIBUTES =
+            new ColorViewAttributes(
+                    SYSTEM_UI_FLAG_HIDE_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION,
+                    Gravity.BOTTOM, Gravity.RIGHT, Gravity.LEFT,
+                    Window.NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME,
+                    com.android.internal.R.id.navigationBarBackground,
+                    0 /* hideWindowFlag */);
+
     // Cludge to address b/22668382: Set the shadow size to the maximum so that the layer
     // size calculation takes the shadow size into account. We set the elevation currently
     // to max until the first layout command has been executed.
@@ -162,18 +177,10 @@
     // View added at runtime to draw under the navigation bar area
     private View mNavigationGuard;
 
-    private final ColorViewState mStatusColorViewState = new ColorViewState(
-            SYSTEM_UI_FLAG_FULLSCREEN, FLAG_TRANSLUCENT_STATUS,
-            Gravity.TOP, Gravity.LEFT, Gravity.RIGHT,
-            Window.STATUS_BAR_BACKGROUND_TRANSITION_NAME,
-            com.android.internal.R.id.statusBarBackground,
-            FLAG_FULLSCREEN);
-    private final ColorViewState mNavigationColorViewState = new ColorViewState(
-            SYSTEM_UI_FLAG_HIDE_NAVIGATION, FLAG_TRANSLUCENT_NAVIGATION,
-            Gravity.BOTTOM, Gravity.RIGHT, Gravity.LEFT,
-            Window.NAVIGATION_BAR_BACKGROUND_TRANSITION_NAME,
-            com.android.internal.R.id.navigationBarBackground,
-            0 /* hideWindowFlag */);
+    private final ColorViewState mStatusColorViewState =
+            new ColorViewState(STATUS_BAR_COLOR_VIEW_ATTRIBUTES);
+    private final ColorViewState mNavigationColorViewState =
+            new ColorViewState(NAVIGATION_BAR_COLOR_VIEW_ATTRIBUTES);
 
     private final Interpolator mShowInterpolator;
     private final Interpolator mHideInterpolator;
@@ -983,35 +990,50 @@
         return false;
     }
 
-    static int getColorViewTopInset(int stableTop, int systemTop) {
+    public static int getColorViewTopInset(int stableTop, int systemTop) {
         return Math.min(stableTop, systemTop);
     }
 
-    static int getColorViewBottomInset(int stableBottom, int systemBottom) {
+    public static int getColorViewBottomInset(int stableBottom, int systemBottom) {
         return Math.min(stableBottom, systemBottom);
     }
 
-    static int getColorViewRightInset(int stableRight, int systemRight) {
+    public static int getColorViewRightInset(int stableRight, int systemRight) {
         return Math.min(stableRight, systemRight);
     }
 
-    static int getColorViewLeftInset(int stableLeft, int systemLeft) {
+    public static int getColorViewLeftInset(int stableLeft, int systemLeft) {
         return Math.min(stableLeft, systemLeft);
     }
 
-    static boolean isNavBarToRightEdge(int bottomInset, int rightInset) {
+    public static boolean isNavBarToRightEdge(int bottomInset, int rightInset) {
         return bottomInset == 0 && rightInset > 0;
     }
 
-    static boolean isNavBarToLeftEdge(int bottomInset, int leftInset) {
+    public static boolean isNavBarToLeftEdge(int bottomInset, int leftInset) {
         return bottomInset == 0 && leftInset > 0;
     }
 
-    static int getNavBarSize(int bottomInset, int rightInset, int leftInset) {
+    public static int getNavBarSize(int bottomInset, int rightInset, int leftInset) {
         return isNavBarToRightEdge(bottomInset, rightInset) ? rightInset
                 : isNavBarToLeftEdge(bottomInset, leftInset) ? leftInset : bottomInset;
     }
 
+    public static void getNavigationBarRect(int canvasWidth, int canvasHeight, Rect stableInsets,
+            Rect contentInsets, Rect outRect) {
+        final int bottomInset = getColorViewBottomInset(stableInsets.bottom, contentInsets.bottom);
+        final int leftInset = getColorViewLeftInset(stableInsets.left, contentInsets.left);
+        final int rightInset = getColorViewLeftInset(stableInsets.right, contentInsets.right);
+        final int size = getNavBarSize(bottomInset, rightInset, leftInset);
+        if (isNavBarToRightEdge(bottomInset, rightInset)) {
+            outRect.set(canvasWidth - size, 0, canvasWidth, canvasHeight);
+        } else if (isNavBarToLeftEdge(bottomInset, leftInset)) {
+            outRect.set(0, 0, size, canvasHeight);
+        } else {
+            outRect.set(0, canvasHeight - size, canvasWidth, canvasHeight);
+        }
+    }
+
     WindowInsets updateColorViews(WindowInsets insets, boolean animate) {
         WindowManager.LayoutParams attrs = mWindow.getAttributes();
         int sysUiVisibility = attrs.systemUiVisibility | getWindowSystemUiVisibility();
@@ -1131,9 +1153,14 @@
     }
 
     private int calculateStatusBarColor() {
-        int flags = mWindow.getAttributes().flags;
-        return (flags & FLAG_TRANSLUCENT_STATUS) != 0 ? mSemiTransparentStatusBarColor
-                : (flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0 ? mWindow.mStatusBarColor
+        return calculateStatusBarColor(mWindow.getAttributes().flags,
+                mSemiTransparentStatusBarColor, mWindow.mStatusBarColor);
+    }
+
+    public static int calculateStatusBarColor(int flags, int semiTransparentStatusBarColor,
+            int statusBarColor) {
+        return (flags & FLAG_TRANSLUCENT_STATUS) != 0 ? semiTransparentStatusBarColor
+                : (flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0 ? statusBarColor
                 : Color.BLACK;
     }
 
@@ -1160,13 +1187,9 @@
     private void updateColorViewInt(final ColorViewState state, int sysUiVis, int color,
             int size, boolean verticalBar, boolean seascape, int sideMargin,
             boolean animate, boolean force) {
-        state.present = (sysUiVis & state.systemUiHideFlag) == 0
-                && (mWindow.getAttributes().flags & state.hideWindowFlag) == 0
-                && ((mWindow.getAttributes().flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0
-                        || force);
-        boolean show = state.present
-                && (color & Color.BLACK) != 0
-                && ((mWindow.getAttributes().flags & state.translucentFlag) == 0  || force);
+        state.present = state.attributes.isPresent(sysUiVis, mWindow.getAttributes().flags, force);
+        boolean show = state.attributes.isVisible(state.present, color,
+                mWindow.getAttributes().flags, force);
         boolean showView = show && !isResizing() && size > 0;
 
         boolean visibilityChanged = false;
@@ -1175,15 +1198,15 @@
         int resolvedHeight = verticalBar ? LayoutParams.MATCH_PARENT : size;
         int resolvedWidth = verticalBar ? size : LayoutParams.MATCH_PARENT;
         int resolvedGravity = verticalBar
-                ? (seascape ? state.seascapeGravity : state.horizontalGravity)
-                : state.verticalGravity;
+                ? (seascape ? state.attributes.seascapeGravity : state.attributes.horizontalGravity)
+                : state.attributes.verticalGravity;
 
         if (view == null) {
             if (showView) {
                 state.view = view = new View(mContext);
                 view.setBackgroundColor(color);
-                view.setTransitionName(state.transitionName);
-                view.setId(state.id);
+                view.setTransitionName(state.attributes.transitionName);
+                view.setId(state.attributes.id);
                 visibilityChanged = true;
                 view.setVisibility(INVISIBLE);
                 state.targetVisibility = VISIBLE;
@@ -2269,6 +2292,15 @@
         boolean visible;
         int color;
 
+        final ColorViewAttributes attributes;
+
+        ColorViewState(ColorViewAttributes attributes) {
+            this.attributes = attributes;
+        }
+    }
+
+    public static class ColorViewAttributes {
+
         final int id;
         final int systemUiHideFlag;
         final int translucentFlag;
@@ -2278,9 +2310,9 @@
         final String transitionName;
         final int hideWindowFlag;
 
-        ColorViewState(int systemUiHideFlag,
-                int translucentFlag, int verticalGravity, int horizontalGravity,
-                int seascapeGravity, String transitionName, int id, int hideWindowFlag) {
+        private ColorViewAttributes(int systemUiHideFlag, int translucentFlag, int verticalGravity,
+                int horizontalGravity, int seascapeGravity, String transitionName, int id,
+                int hideWindowFlag) {
             this.id = id;
             this.systemUiHideFlag = systemUiHideFlag;
             this.translucentFlag = translucentFlag;
@@ -2290,6 +2322,24 @@
             this.transitionName = transitionName;
             this.hideWindowFlag = hideWindowFlag;
         }
+
+        public boolean isPresent(int sysUiVis, int windowFlags, boolean force) {
+            return (sysUiVis & systemUiHideFlag) == 0
+                    && (windowFlags & hideWindowFlag) == 0
+                    && ((windowFlags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0
+                    || force);
+        }
+
+        public boolean isVisible(boolean present, int color, int windowFlags, boolean force) {
+            return present
+                    && (color & Color.BLACK) != 0
+                    && ((windowFlags & translucentFlag) == 0  || force);
+        }
+
+        public boolean isVisible(int sysUiVis, int color, int windowFlags, boolean force) {
+            final boolean present = isPresent(sysUiVis, windowFlags, force);
+            return isVisible(present, color, windowFlags, force);
+        }
     }
 
     /**
diff --git a/core/java/com/android/internal/view/SurfaceFlingerVsyncChoreographer.java b/core/java/com/android/internal/view/SurfaceFlingerVsyncChoreographer.java
new file mode 100644
index 0000000..e40090f
--- /dev/null
+++ b/core/java/com/android/internal/view/SurfaceFlingerVsyncChoreographer.java
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.internal.view;
+
+import android.os.Handler;
+import android.os.Message;
+import android.view.Choreographer;
+import android.view.Display;
+
+/**
+ * Utility class to schedule things at vsync-sf instead of vsync-app
+ * @hide
+ */
+public class SurfaceFlingerVsyncChoreographer {
+
+    private static final long ONE_MS_IN_NS = 1000000;
+    private static final long ONE_S_IN_NS = ONE_MS_IN_NS * 1000;
+
+    private final Handler mHandler;
+    private final Choreographer mChoreographer = Choreographer.getInstance();
+
+    /**
+     * The offset between vsync-app and vsync-surfaceflinger. See
+     * {@link #calculateAppSurfaceFlingerVsyncOffsetMs} why this is necessary.
+     */
+    private long mSurfaceFlingerOffsetMs;
+
+    public SurfaceFlingerVsyncChoreographer(Handler handler, Display display) {
+        mHandler = handler;
+        mSurfaceFlingerOffsetMs = calculateAppSurfaceFlingerVsyncOffsetMs(display);
+    }
+
+    public long getSurfaceFlingerOffsetMs() {
+        return mSurfaceFlingerOffsetMs;
+    }
+
+    /**
+     * This method calculates the offset between vsync-surfaceflinger and vsync-app. If vsync-app
+     * is a couple of milliseconds before vsync-sf, a touch or animation event that causes a surface
+     * flinger transaction are sometimes processed before the vsync-sf tick, and sometimes after,
+     * which leads to jank. Figure out this difference here and then post all the touch/animation
+     * events to start being processed at vsync-sf.
+     *
+     * @return The offset between vsync-app and vsync-sf, or 0 if vsync app happens after vsync-sf.
+     */
+    private long calculateAppSurfaceFlingerVsyncOffsetMs(Display display) {
+
+        // Calculate vsync offset from SurfaceFlinger.
+        // See frameworks/native/services/surfaceflinger/SurfaceFlinger.cpp:getDisplayConfigs
+        long vsyncPeriod = (long) (ONE_S_IN_NS / display.getRefreshRate());
+        long sfVsyncOffset = vsyncPeriod - (display.getPresentationDeadlineNanos() - ONE_MS_IN_NS);
+        return Math.max(0, (sfVsyncOffset - display.getAppVsyncOffsetNanos()) / ONE_MS_IN_NS);
+    }
+
+    public void scheduleAtSfVsync(Runnable r) {
+        final long delay = calculateDelay();
+        if (delay <= 0) {
+            r.run();
+        } else {
+            mHandler.postDelayed(r, delay);
+        }
+    }
+
+    public void scheduleAtSfVsync(Handler h, Message m) {
+        final long delay = calculateDelay();
+        if (delay <= 0) {
+            h.handleMessage(m);
+        } else {
+            m.setAsynchronous(true);
+            h.sendMessageDelayed(m, delay);
+        }
+    }
+
+    private long calculateDelay() {
+        final long sinceFrameStart = System.nanoTime() - mChoreographer.getLastFrameTimeNanos();
+        return mSurfaceFlingerOffsetMs - sinceFrameStart / 1000000;
+    }
+}
diff --git a/core/jni/android/graphics/FontUtils.cpp b/core/jni/android/graphics/FontUtils.cpp
index 91fec2a..3bcf0c7 100644
--- a/core/jni/android/graphics/FontUtils.cpp
+++ b/core/jni/android/graphics/FontUtils.cpp
@@ -55,7 +55,7 @@
     gListClassInfo.mGet = GetMethodIDOrDie(env, listClass, "get", "(I)Ljava/lang/Object;");
     gListClassInfo.mSize = GetMethodIDOrDie(env, listClass, "size", "()I");
 
-    jclass axisClass = FindClassOrDie(env, "android/text/FontConfig$Axis");
+    jclass axisClass = FindClassOrDie(env, "android/graphics/fonts/FontVariationAxis");
     gAxisClassInfo.mTag = GetFieldIDOrDie(env, axisClass, "mTag", "I");
     gAxisClassInfo.mStyleValue = GetFieldIDOrDie(env, axisClass, "mStyleValue", "F");
 }
diff --git a/core/jni/android/graphics/Shader.cpp b/core/jni/android/graphics/Shader.cpp
index a77ed62..1a35330 100644
--- a/core/jni/android/graphics/Shader.cpp
+++ b/core/jni/android/graphics/Shader.cpp
@@ -10,6 +10,14 @@
 
 using namespace android::uirenderer;
 
+/**
+ * By default Skia gradients will interpolate their colors in unpremul space
+ * and then premultiply each of the results. We must set this flag to preserve
+ * backwards compatiblity by premultiplying the colors of the gradient first,
+ * and then interpolating between them.
+ */
+static const uint32_t sGradientShaderFlags = SkGradientShader::kInterpolateColorsInPremul_Flag;
+
 static void ThrowIAE_IfNull(JNIEnv* env, void* ptr) {
     if (NULL == ptr) {
         doThrowIAE(env);
@@ -89,7 +97,7 @@
 
     SkShader* shader = SkGradientShader::MakeLinear(pts,
             reinterpret_cast<const SkColor*>(colorValues), pos, count,
-            static_cast<SkShader::TileMode>(tileMode), /* flags */ 0, matrix).release();
+            static_cast<SkShader::TileMode>(tileMode), sGradientShaderFlags, matrix).release();
 
     env->ReleaseIntArrayElements(colorArray, const_cast<jint*>(colorValues), JNI_ABORT);
     ThrowIAE_IfNull(env, shader);
@@ -109,7 +117,7 @@
     colors[1] = color1;
 
     SkShader* s = SkGradientShader::MakeLinear(pts, colors, NULL, 2,
-            (SkShader::TileMode)tileMode, /* flags */ 0, matrix).release();
+            static_cast<SkShader::TileMode>(tileMode), sGradientShaderFlags, matrix).release();
 
     ThrowIAE_IfNull(env, s);
     return reinterpret_cast<jlong>(s);
@@ -135,7 +143,7 @@
 
     SkShader* shader = SkGradientShader::MakeRadial(center, radius,
             reinterpret_cast<const SkColor*>(colorValues), pos, count,
-            static_cast<SkShader::TileMode>(tileMode), /* flags */ 0, matrix).release();
+            static_cast<SkShader::TileMode>(tileMode), sGradientShaderFlags, matrix).release();
     env->ReleaseIntArrayElements(colorArray, const_cast<jint*>(colorValues),
                                  JNI_ABORT);
 
@@ -154,7 +162,7 @@
     colors[1] = color1;
 
     SkShader* s = SkGradientShader::MakeRadial(center, radius, colors, NULL, 2,
-            (SkShader::TileMode)tileMode, /* flags */ 0, matrix).release();
+            static_cast<SkShader::TileMode>(tileMode), sGradientShaderFlags, matrix).release();
     ThrowIAE_IfNull(env, s);
     return reinterpret_cast<jlong>(s);
 }
@@ -174,8 +182,8 @@
     #error Need to convert float array to SkScalar array before calling the following function.
 #endif
 
-    SkShader* shader = SkGradientShader::MakeSweep(x, y,
-            reinterpret_cast<const SkColor*>(colors), pos, count, /* flags */ 0, matrix).release();
+    SkShader* shader = SkGradientShader::MakeSweep(x, y, reinterpret_cast<const SkColor*>(colors),
+            pos, count, sGradientShaderFlags, matrix).release();
     env->ReleaseIntArrayElements(jcolors, const_cast<jint*>(colors),
                                  JNI_ABORT);
     ThrowIAE_IfNull(env, shader);
@@ -189,7 +197,7 @@
     colors[0] = color0;
     colors[1] = color1;
     SkShader* s = SkGradientShader::MakeSweep(x, y, colors, NULL, 2,
-            /* flags */ 0, matrix).release();
+            sGradientShaderFlags, matrix).release();
     ThrowIAE_IfNull(env, s);
     return reinterpret_cast<jlong>(s);
 }
diff --git a/core/jni/android_view_Surface.cpp b/core/jni/android_view_Surface.cpp
index 713287e..5839fd5 100644
--- a/core/jni/android_view_Surface.cpp
+++ b/core/jni/android_view_Surface.cpp
@@ -101,17 +101,7 @@
     return sur;
 }
 
-jobject android_view_Surface_createFromIGraphicBufferProducer(JNIEnv* env,
-        const sp<IGraphicBufferProducer>& bufferProducer) {
-    if (bufferProducer == NULL) {
-        return NULL;
-    }
-
-    sp<Surface> surface(new Surface(bufferProducer, true));
-    if (surface == NULL) {
-        return NULL;
-    }
-
+jobject android_view_Surface_createFromSurface(JNIEnv* env, const sp<Surface>& surface) {
     jobject surfaceObj = env->NewObject(gSurfaceClassInfo.clazz,
             gSurfaceClassInfo.ctor, (jlong)surface.get());
     if (surfaceObj == NULL) {
@@ -126,6 +116,16 @@
     return surfaceObj;
 }
 
+jobject android_view_Surface_createFromIGraphicBufferProducer(JNIEnv* env,
+        const sp<IGraphicBufferProducer>& bufferProducer) {
+    if (bufferProducer == NULL) {
+        return NULL;
+    }
+
+    sp<Surface> surface(new Surface(bufferProducer, true));
+    return android_view_Surface_createFromSurface(env, surface);
+}
+
 int android_view_Surface_mapPublicFormatToHalFormat(PublicFormat f) {
 
     switch(f) {
diff --git a/core/jni/include/android_runtime/android_view_Surface.h b/core/jni/include/android_runtime/android_view_Surface.h
index 3f1bdff..2641ab8 100644
--- a/core/jni/include/android_runtime/android_view_Surface.h
+++ b/core/jni/include/android_runtime/android_view_Surface.h
@@ -69,6 +69,10 @@
 /* Gets the underlying Surface from a Surface Java object. */
 extern sp<Surface> android_view_Surface_getSurface(JNIEnv* env, jobject surfaceObj);
 
+/* Creates a Surface from an android::Surface. */
+extern jobject android_view_Surface_createFromSurface(JNIEnv* env,
+        const sp<Surface>& surface);
+
 /* Creates a Surface from an IGraphicBufferProducer. */
 extern jobject android_view_Surface_createFromIGraphicBufferProducer(JNIEnv* env,
         const sp<IGraphicBufferProducer>& bufferProducer);
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index e7a447c..0a50048 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -3129,6 +3129,15 @@
     <permission android:name="android.permission.BIND_CHOOSER_TARGET_SERVICE"
         android:protectionLevel="signature" />
 
+    <!-- @SystemApi Must be required by services that extend
+         {@link android.service.resolver.ResolverRankerService}, to ensure that only the system can
+         bind to them.
+         <p>Protection level: signature
+         @hide
+    -->
+    <permission android:name="android.permission.BIND_RESOLVER_RANKER_SERVICE"
+        android:protectionLevel="signature" />
+
     <!-- Must be required by a {@link
          android.service.notification.ConditionProviderService},
          to ensure that only the system can bind to it.
@@ -3640,6 +3649,14 @@
                  android:permission="android.permission.BIND_JOB_SERVICE" >
         </service>
 
+        <service android:name="com.android.internal.app.LRResolverRankerService"
+            android:permission="android.permission.BIND_RESOLVER_RANKER_SERVICE"
+            android:exported="false"
+            android:priority="-1" >
+            <intent-filter>
+                <action android:name="android.service.resolver.ResolverRankerService" />
+            </intent-filter>
+        </service>
     </application>
 
 </manifest>
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 554f50c..ee73b69 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -8566,6 +8566,11 @@
         <!-- @hide From Theme.colorBackground, used for the TaskDescription background
                    color. -->
         <attr name="colorBackground" />
+        <!-- @hide From Theme.statusBarColor, used for the TaskDescription status bar color. -->
+        <attr name="statusBarColor"/>
+        <!-- @hide From Theme.navigationBarColor, used for the TaskDescription navigation bar
+                   color. -->
+        <attr name="navigationBarColor"/>
     </declare-styleable>
 
     <declare-styleable name="Shortcut">
diff --git a/core/tests/coretests/src/android/graphics/VariationParserTest.java b/core/tests/coretests/src/android/graphics/VariationParserTest.java
deleted file mode 100644
index fdabb13..0000000
--- a/core/tests/coretests/src/android/graphics/VariationParserTest.java
+++ /dev/null
@@ -1,126 +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 android.graphics;
-
-import android.test.suitebuilder.annotation.SmallTest;
-import android.text.FontConfig;
-
-import junit.framework.TestCase;
-
-import java.util.List;
-
-
-public class VariationParserTest extends TestCase {
-
-    @SmallTest
-    public void testParseFontVariationSetting() {
-        int tag = FontListParser.makeTag("wdth");
-        List<FontConfig.Axis> axes = FontListParser.parseFontVariationSettings("'wdth' 1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("\"wdth\" 100");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(100.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("   'wdth' 100");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(100.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("\t'wdth' 0.5");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(0.5f, axes.get(0).getStyleValue());
-
-        tag = FontListParser.makeTag("AX  ");
-        axes = FontListParser.parseFontVariationSettings("'AX  ' 1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("'AX  '\t1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("'AX  '\n1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("'AX  '\r1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        axes = FontListParser.parseFontVariationSettings("'AX  '\r\t\n 1");
-        assertEquals(tag, axes.get(0).getTag());
-        assertEquals(1.0f, axes.get(0).getStyleValue());
-
-        // Test for invalid input
-        axes = FontListParser.parseFontVariationSettings("");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("invalid_form");
-        assertEquals(0, axes.size());
-
-        // Test with invalid tag
-        axes = FontListParser.parseFontVariationSettings("'' 1");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("'invalid' 1");
-        assertEquals(0, axes.size());
-
-        // Test with invalid styleValue
-        axes = FontListParser.parseFontVariationSettings("'wdth' ");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("'wdth' x");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("'wdth' \t");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("'wdth' \n\r");
-        assertEquals(0, axes.size());
-    }
-
-    @SmallTest
-    public void testParseFontVariationStyleSettings() {
-        List<FontConfig.Axis> axes =
-                FontListParser.parseFontVariationSettings("'wdth' 10,'AX  '\r1");
-        int tag1 = FontListParser.makeTag("wdth");
-        int tag2 = FontListParser.makeTag("AX  ");
-        assertEquals(tag1, axes.get(0).getTag());
-        assertEquals(10.0f, axes.get(0).getStyleValue());
-        assertEquals(tag2, axes.get(1).getTag());
-        assertEquals(1.0f, axes.get(1).getStyleValue());
-
-        // Test only spacers are allowed before tag
-        axes = FontListParser.parseFontVariationSettings("     'wdth' 10,ab'wdth' 1");
-        tag1 = FontListParser.makeTag("wdth");
-        assertEquals(tag1, axes.get(0).getTag());
-        assertEquals(10.0f, axes.get(0).getStyleValue());
-        assertEquals(1, axes.size());
-    }
-
-    @SmallTest
-    public void testInvalidTagCharacters() {
-        List<FontConfig.Axis> axes =
-                FontListParser.parseFontVariationSettings("'\u0000\u0000\u0000\u0000' 10");
-        assertEquals(0, axes.size());
-        axes = FontListParser.parseFontVariationSettings("'\u3042\u3044\u3046\u3048' 10");
-        assertEquals(0, axes.size());
-    }
-
-    @SmallTest
-    public void testMakeTag() {
-      assertEquals(0x77647468, FontListParser.makeTag("wdth"));
-      assertEquals(0x41582020, FontListParser.makeTag("AX  "));
-      assertEquals(0x20202020, FontListParser.makeTag("    "));
-    }
-}
diff --git a/core/tests/coretests/src/android/text/VariationParserTest.java b/core/tests/coretests/src/android/text/VariationParserTest.java
new file mode 100644
index 0000000..bcc47e1
--- /dev/null
+++ b/core/tests/coretests/src/android/text/VariationParserTest.java
@@ -0,0 +1,56 @@
+/*
+ * 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.text;
+
+import android.graphics.fonts.FontVariationAxis;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import junit.framework.TestCase;
+
+public class VariationParserTest extends TestCase {
+    private static final String[] INVALID_STYLE_VALUES = {
+        "", "x", "\t", "\n"
+    };
+
+    @SmallTest
+    public void testFromFontVariationSetting_InvalidStyleValue() {
+        // Test with invalid styleValue
+        for (String invalidStyle : INVALID_STYLE_VALUES) {
+            try {
+                FontVariationAxis.fromFontVariationSettings("'wdth' " + invalidStyle);
+                fail();
+            } catch (FontVariationAxis.InvalidFormatException e) {
+                // pass
+            }
+        }
+        for (String invalidStyle : INVALID_STYLE_VALUES) {
+            try {
+                FontVariationAxis.fromFontVariationSettings("'wght' 1, 'wdth' " + invalidStyle);
+                fail();
+            } catch (FontVariationAxis.InvalidFormatException e) {
+                // pass
+            }
+        }
+    }
+
+    @SmallTest
+    public void testOpenTypeTagValue() throws FontVariationAxis.InvalidFormatException {
+      assertEquals(0x77647468, (new FontVariationAxis("wdth", 0).getOpenTypeTagValue()));
+      assertEquals(0x41582020, (new FontVariationAxis("AX  ", 0).getOpenTypeTagValue()));
+      assertEquals(0x20202020, (new FontVariationAxis("    ", 0).getOpenTypeTagValue()));
+    }
+}
diff --git a/data/fonts/fonts.xml b/data/fonts/fonts.xml
index 76c29a9..3dab1f7 100644
--- a/data/fonts/fonts.xml
+++ b/data/fonts/fonts.xml
@@ -3,15 +3,10 @@
     WARNING: Parsing of this file by third-party apps is not supported. The
     file, and the font files it refers to, will be renamed and/or moved out
     from their respective location in the next Android release, and/or the
-    format or syntax of the file may change significantly. You must not
-    parse this file for information about system fonts. Instead, you must
-    call android.text.FontManager#getSystemFonts(). For example, it can be
-    called as context.getSystemService(FontManager.class).getSystemFonts().
-    Note that the returned FontConfig includes data on all the defined font
-    families and all the details about weight, style, etc. It also provides
-    an open file descriptor to each font file. Note that callers of the API
-    should ensure they close the given file descriptors once they are done
-    using them.
+    format or syntax of the file may change significantly. If you parse this
+    file for information about system fonts, do it at your own risk. Your
+    application will almost certainly break with the next major Android
+    release.
 
     In this file, all fonts without names are added to the default list.
     Fonts are chosen based on a match: full BCP-47 language tag including
diff --git a/graphics/java/android/graphics/FontFamily.java b/graphics/java/android/graphics/FontFamily.java
index 6214ba6..4b1b0c6 100644
--- a/graphics/java/android/graphics/FontFamily.java
+++ b/graphics/java/android/graphics/FontFamily.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import android.content.res.AssetManager;
+import android.graphics.fonts.FontVariationAxis;
 import android.text.FontConfig;
 import android.util.Log;
 import dalvik.annotation.optimization.CriticalNative;
@@ -81,7 +82,7 @@
         }
     }
 
-    public boolean addFont(String path, int ttcIndex, FontConfig.Axis[] axes, int weight,
+    public boolean addFont(String path, int ttcIndex, FontVariationAxis[] axes, int weight,
             int italic) {
         if (mBuilderPtr == 0) {
             throw new IllegalStateException("Unable to call addFont after freezing.");
@@ -91,8 +92,8 @@
             long fontSize = fileChannel.size();
             ByteBuffer fontBuffer = fileChannel.map(FileChannel.MapMode.READ_ONLY, 0, fontSize);
             if (axes != null) {
-                for (FontConfig.Axis axis : axes) {
-                    nAddAxisValue(mBuilderPtr, axis.getTag(), axis.getStyleValue());
+                for (FontVariationAxis axis : axes) {
+                    nAddAxisValue(mBuilderPtr, axis.getOpenTypeTagValue(), axis.getStyleValue());
                 }
             }
             return nAddFont(mBuilderPtr, fontBuffer, ttcIndex, weight, italic);
@@ -102,14 +103,14 @@
         }
     }
 
-    public boolean addFontFromBuffer(ByteBuffer font, int ttcIndex, FontConfig.Axis[] axes,
+    public boolean addFontFromBuffer(ByteBuffer font, int ttcIndex, FontVariationAxis[] axes,
             int weight, int italic) {
         if (mBuilderPtr == 0) {
             throw new IllegalStateException("Unable to call addFontWeightStyle after freezing.");
         }
         if (axes != null) {
-            for (FontConfig.Axis axis : axes) {
-                nAddAxisValue(mBuilderPtr, axis.getTag(), axis.getStyleValue());
+            for (FontVariationAxis axis : axes) {
+                nAddAxisValue(mBuilderPtr, axis.getOpenTypeTagValue(), axis.getStyleValue());
             }
         }
         return nAddFontWeightStyle(mBuilderPtr, font, ttcIndex, weight, italic);
@@ -129,13 +130,13 @@
      */
     public boolean addFontFromAssetManager(AssetManager mgr, String path, int cookie,
             boolean isAsset, int ttcIndex, int weight, int isItalic,
-            FontConfig.Axis[] axes) {
+            FontVariationAxis[] axes) {
         if (mBuilderPtr == 0) {
             throw new IllegalStateException("Unable to call addFontFromAsset after freezing.");
         }
         if (axes != null) {
-            for (FontConfig.Axis axis : axes) {
-                nAddAxisValue(mBuilderPtr, axis.getTag(), axis.getStyleValue());
+            for (FontVariationAxis axis : axes) {
+                nAddAxisValue(mBuilderPtr, axis.getOpenTypeTagValue(), axis.getStyleValue());
             }
         }
         return nAddFontFromAssetManager(mBuilderPtr, mgr, path, cookie, isAsset, ttcIndex, weight,
diff --git a/graphics/java/android/graphics/FontListParser.java b/graphics/java/android/graphics/FontListParser.java
index ff9f11d..1a4f225 100644
--- a/graphics/java/android/graphics/FontListParser.java
+++ b/graphics/java/android/graphics/FontListParser.java
@@ -17,6 +17,7 @@
 package android.graphics;
 
 import android.text.FontConfig;
+import android.graphics.fonts.FontVariationAxis;
 import android.util.Xml;
 
 import org.xmlpull.v1.XmlPullParser;
@@ -50,72 +51,6 @@
         }
     }
 
-    // Note that a well-formed variation contains a four-character tag and a float as styleValue,
-    // with spacers in between. The tag is enclosd either by double quotes or single quotes.
-    @VisibleForTesting
-    public static ArrayList<FontConfig.Axis> parseFontVariationSettings(@Nullable String settings) {
-        ArrayList<FontConfig.Axis> axisList = new ArrayList<>();
-        if (settings == null) {
-            return axisList;
-        }
-        String[] settingList = settings.split(",");
-        settingLoop:
-        for (String setting : settingList) {
-            int pos = 0;
-            while (pos < setting.length()) {
-                char c = setting.charAt(pos);
-                if (c == '\'' || c == '"') {
-                    break;
-                } else if (!isSpacer(c)) {
-                    continue settingLoop;  // Only spacers are allowed before tag appeared.
-                }
-                pos++;
-            }
-            if (pos + 7 > setting.length()) {
-                continue;  // 7 is the minimum length of tag-style value pair text.
-            }
-            if (setting.charAt(pos) != setting.charAt(pos + 5)) {
-                continue;  // Tag should be wrapped with double or single quote.
-            }
-            String tagString = setting.substring(pos + 1, pos + 5);
-            if (!TAG_PATTERN.matcher(tagString).matches()) {
-                continue;  // Skip incorrect format tag.
-            }
-            pos += 6;
-            while (pos < setting.length()) {
-                if (!isSpacer(setting.charAt(pos++))) {
-                    break;  // Skip spacers between the tag and the styleValue.
-                }
-            }
-            // Skip invalid styleValue
-            float styleValue;
-            String valueString = setting.substring(pos - 1);
-            if (!STYLE_VALUE_PATTERN.matcher(valueString).matches()) {
-                continue;  // Skip incorrect format styleValue.
-            }
-            try {
-                styleValue = Float.parseFloat(valueString);
-            } catch (NumberFormatException e) {
-                continue;  // ignoreing invalid number format
-            }
-            int tag = makeTag(tagString);
-            axisList.add(new FontConfig.Axis(tag, styleValue));
-        }
-        return axisList;
-    }
-
-    public static int makeTag(String tagString) {
-        char c1 = tagString.charAt(0);
-        char c2 = tagString.charAt(1);
-        char c3 = tagString.charAt(2);
-        char c4 = tagString.charAt(3);
-        return (c1 << 24) | (c2 << 16) | (c3 << 8) | c4;
-    }
-
-    private static boolean isSpacer(char c) {
-        return c == ' ' || c == '\r' || c == '\t' || c == '\n';
-    }
-
     private static FontConfig readFamilies(XmlPullParser parser)
             throws XmlPullParserException, IOException {
         List<FontConfig.Family> families = new ArrayList<>();
@@ -172,7 +107,7 @@
             throws XmlPullParserException, IOException {
         String indexStr = parser.getAttributeValue(null, "index");
         int index = indexStr == null ? 0 : Integer.parseInt(indexStr);
-        List<FontConfig.Axis> axes = new ArrayList<FontConfig.Axis>();
+        List<FontVariationAxis> axes = new ArrayList<FontVariationAxis>();
         String weightStr = parser.getAttributeValue(null, "weight");
         int weight = weightStr == null ? 400 : Integer.parseInt(weightStr);
         boolean isItalic = "italic".equals(parser.getAttributeValue(null, "style"));
@@ -191,47 +126,20 @@
         }
         String sanitizedName = FILENAME_WHITESPACE_PATTERN.matcher(filename).replaceAll("");
         return new FontConfig.Font(sanitizedName, index,
-                axes.toArray(new FontConfig.Axis[axes.size()]), weight, isItalic);
+                axes.toArray(new FontVariationAxis[axes.size()]), weight, isItalic);
     }
 
-    /** The 'tag' attribute value is read as four character values between U+0020 and U+007E
-     *  inclusive.
-     */
-    private static final Pattern TAG_PATTERN = Pattern.compile("[\\x20-\\x7E]{4}");
-
-    public static boolean isValidTag(String tagString) {
-        if (tagString == null || tagString.length() != 4) {
-            return false;
-        }
-        return TAG_PATTERN.matcher(tagString).matches();
-    }
-
-    /** The 'styleValue' attribute has an optional leading '-', followed by '<digits>',
-     *  '<digits>.<digits>', or '.<digits>' where '<digits>' is one or more of [0-9].
-     */
-    private static final Pattern STYLE_VALUE_PATTERN =
-            Pattern.compile("-?(([0-9]+(\\.[0-9]+)?)|(\\.[0-9]+))");
-
-    private static FontConfig.Axis readAxis(XmlPullParser parser)
+    private static FontVariationAxis readAxis(XmlPullParser parser)
             throws XmlPullParserException, IOException {
-        int tag = 0;
         String tagStr = parser.getAttributeValue(null, "tag");
-        if (isValidTag(tagStr)) {
-            tag = makeTag(tagStr);
-        } else {
-            throw new XmlPullParserException("Invalid tag attribute value.", parser, null);
-        }
-
-        float styleValue = 0;
         String styleValueStr = parser.getAttributeValue(null, "stylevalue");
-        if (styleValueStr != null && STYLE_VALUE_PATTERN.matcher(styleValueStr).matches()) {
-            styleValue = Float.parseFloat(styleValueStr);
-        } else {
-            throw new XmlPullParserException("Invalid styleValue attribute value.", parser, null);
-        }
-
         skip(parser);  // axis tag is empty, ignore any contents and consume end tag
-        return new FontConfig.Axis(tag, styleValue);
+        try {
+            return new FontVariationAxis(tagStr, Float.parseFloat(styleValueStr));
+        } catch (FontVariationAxis.InvalidFormatException e) {
+            // Treat as system failure since system preinstalled font setting has invalid format.
+            throw new RuntimeException(e);
+        }
     }
 
     private static FontConfig.Alias readAlias(XmlPullParser parser)
diff --git a/graphics/java/android/graphics/Paint.java b/graphics/java/android/graphics/Paint.java
index c4f7dc3..828729a 100644
--- a/graphics/java/android/graphics/Paint.java
+++ b/graphics/java/android/graphics/Paint.java
@@ -20,6 +20,7 @@
 import android.annotation.NonNull;
 import android.annotation.Size;
 import android.graphics.FontListParser;
+import android.graphics.fonts.FontVariationAxis;
 import android.os.LocaleList;
 import android.text.FontConfig;
 import android.text.GraphicsOperations;
@@ -1551,8 +1552,11 @@
      * @return true if the given settings is effective to at least one font file underlying this
      *         typeface. This function also returns true for empty settings string. Otherwise
      *         returns false
+     * @throws FontVariationAxis.InvalidFormatException
+     *         If given string is not a valid font variation settings format.
      */
-    public boolean setFontVariationSettings(String settings) {
+    public boolean setFontVariationSettings(String settings)
+            throws FontVariationAxis.InvalidFormatException {
         settings = TextUtils.nullIfEmpty(settings);
         if (settings == mFontVariationSettings
                 || (settings != null && settings.equals(mFontVariationSettings))) {
@@ -1566,11 +1570,10 @@
             return true;
         }
 
-        final ArrayList<FontConfig.Axis> axes = FontListParser.parseFontVariationSettings(settings);
-        final ArrayList<FontConfig.Axis> filteredAxes = new ArrayList<FontConfig.Axis>();
-        for (int i = 0; i < axes.size(); ++i) {
-            final FontConfig.Axis axis = axes.get(i);
-            if (mTypeface.isSupportedAxes(axis.getTag())) {
+        FontVariationAxis[] axes = FontVariationAxis.fromFontVariationSettings(settings);
+        final ArrayList<FontVariationAxis> filteredAxes = new ArrayList<FontVariationAxis>();
+        for (final FontVariationAxis axis : axes) {
+            if (mTypeface.isSupportedAxes(axis.getOpenTypeTagValue())) {
                 filteredAxes.add(axis);
             }
         }
diff --git a/graphics/java/android/graphics/Typeface.java b/graphics/java/android/graphics/Typeface.java
index 8c3a2e8..560d29f 100644
--- a/graphics/java/android/graphics/Typeface.java
+++ b/graphics/java/android/graphics/Typeface.java
@@ -32,6 +32,7 @@
 import android.graphics.FontListParser;
 import android.graphics.fonts.FontRequest;
 import android.graphics.fonts.FontResult;
+import android.graphics.fonts.FontVariationAxis;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.ParcelFileDescriptor;
@@ -358,11 +359,15 @@
                         FileChannel.MapMode.READ_ONLY, 0, fontSize);
                 int style = result.getStyle();
                 int weight = (style & BOLD) != 0 ? 700 : 400;
-                final ArrayList<FontConfig.Axis> axes = FontListParser.parseFontVariationSettings(
-                        result.getFontVariationSettings());
-                if (!fontFamily.addFontFromBuffer(fontBuffer, result.getTtcIndex(),
-                                axes.toArray(new FontConfig.Axis[axes.size()]), weight,
-                                (style & ITALIC) == 0 ? Builder.NORMAL : Builder.ITALIC)) {
+                FontVariationAxis[] axes = null;
+                try {
+                    axes = FontVariationAxis.fromFontVariationSettings(
+                            result.getFontVariationSettings());
+                } catch (FontVariationAxis.InvalidFormatException e) {
+                    // TODO: Nice to pass FontVariationAxis[] directly instead of string.
+                }
+                if (!fontFamily.addFontFromBuffer(fontBuffer, result.getTtcIndex(), axes, weight,
+                        (style & ITALIC) == 0 ? Builder.NORMAL : Builder.ITALIC)) {
                     Log.e(TAG, "Error creating font " + request.getQuery());
                     callback.onTypefaceRequestFailed(
                             FontRequestCallback.FAIL_REASON_FONT_LOAD_ERROR);
@@ -514,7 +519,7 @@
         public static final int ITALIC = 1;
 
         private int mTtcIndex;
-        private FontConfig.Axis[] mAxes;
+        private FontVariationAxis[] mAxes;
 
         private AssetManager mAssetManager;
         private String mPath;
@@ -682,15 +687,16 @@
          * Sets a font variation settings.
          *
          * @param variationSettings See {@link android.widget.TextView#setFontVariationSettings}.
+         * @throws FontVariationAxis.InvalidFormatException If given string is not a valid font
+         *                                                  variation settings format.
          */
-        public Builder setFontVariationSettings(@Nullable String variationSettings) {
+        public Builder setFontVariationSettings(@Nullable String variationSettings)
+                throws FontVariationAxis.InvalidFormatException {
             checkNotRecycled();
             if (mAxes != null) {
                 throw new IllegalStateException("Font variation settings are already set.");
             }
-            final List<FontConfig.Axis> axesList = FontListParser.parseFontVariationSettings(
-                    variationSettings);
-            mAxes = axesList.toArray(new FontConfig.Axis[axesList.size()]);
+            mAxes = FontVariationAxis.fromFontVariationSettings(variationSettings);
             return this;
         }
 
@@ -699,7 +705,7 @@
          *
          * @param axes An array of font variation axis tag-value pairs.
          */
-        public Builder setFontVariationSettings(@Nullable FontConfig.Axis[] axes) {
+        public Builder setFontVariationSettings(@Nullable FontVariationAxis[] axes) {
             checkNotRecycled();
             if (mAxes != null) {
                 throw new IllegalStateException("Font variation settings are already set.");
@@ -718,7 +724,7 @@
          * @return Unique id for a given AssetManager and asset path.
          */
         private static String createAssetUid(final AssetManager mgr, String path, int ttcIndex,
-                @Nullable FontConfig.Axis[] axes) {
+                @Nullable FontVariationAxis[] axes) {
             final SparseArray<String> pkgs = mgr.getAssignedPackageIdentifiers();
             final StringBuilder builder = new StringBuilder();
             final int size = pkgs.size();
@@ -731,8 +737,8 @@
             builder.append(Integer.toString(ttcIndex));
             builder.append("-");
             if (axes != null) {
-                for (FontConfig.Axis axis : axes) {
-                    builder.append(Integer.toHexString(axis.getTag()));
+                for (FontVariationAxis axis : axes) {
+                    builder.append(axis.getTag());
                     builder.append("-");
                     builder.append(Float.toString(axis.getStyleValue()));
                 }
@@ -865,7 +871,7 @@
 
     /** @hide */
     public static Typeface createFromTypefaceWithVariation(Typeface family,
-            List<FontConfig.Axis> axes) {
+            List<FontVariationAxis> axes) {
         final long ni = family == null ? 0 : family.native_instance;
         return new Typeface(nativeCreateFromTypefaceWithVariation(ni, axes));
     }
@@ -1162,9 +1168,9 @@
     }
 
     private static native long nativeCreateFromTypeface(long native_instance, int style);
-    // TODO: clean up: change List<FontConfig.Axis> to FontConfig.Axis[]
+    // TODO: clean up: change List<FontVariationAxis> to FontVariationAxis[]
     private static native long nativeCreateFromTypefaceWithVariation(
-            long native_instance, List<FontConfig.Axis> axes);
+            long native_instance, List<FontVariationAxis> axes);
     private static native long nativeCreateWeightAlias(long native_instance, int weight);
     private static native void nativeUnref(long native_instance);
     private static native int  nativeGetStyle(long native_instance);
diff --git a/graphics/java/android/graphics/drawable/DrawableContainer.java b/graphics/java/android/graphics/drawable/DrawableContainer.java
index 04864bdc..a491d7e 100644
--- a/graphics/java/android/graphics/drawable/DrawableContainer.java
+++ b/graphics/java/android/graphics/drawable/DrawableContainer.java
@@ -88,9 +88,7 @@
     }
 
     @Override
-    public
-    @Config
-    int getChangingConfigurations() {
+    public @Config int getChangingConfigurations() {
         return super.getChangingConfigurations()
                 | mDrawableContainerState.getChangingConfigurations();
     }
diff --git a/graphics/java/android/graphics/drawable/LayerDrawable.java b/graphics/java/android/graphics/drawable/LayerDrawable.java
index 322e55b..b159f0f 100644
--- a/graphics/java/android/graphics/drawable/LayerDrawable.java
+++ b/graphics/java/android/graphics/drawable/LayerDrawable.java
@@ -32,6 +32,7 @@
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
 import android.util.LayoutDirection;
+import android.util.Log;
 import android.view.Gravity;
 import android.view.View;
 
@@ -66,6 +67,8 @@
  * @attr ref android.R.styleable#LayerDrawableItem_id
 */
 public class LayerDrawable extends Drawable implements Drawable.Callback {
+    private static final String LOG_TAG = "LayerDrawable";
+
     /**
      * Padding mode used to nest each layer inside the padding of the previous
      * layer.
@@ -89,6 +92,7 @@
      */
     public static final int INSET_UNDEFINED = Integer.MIN_VALUE;
 
+    @NonNull
     LayerState mLayerState;
 
     private int[] mPaddingL;
@@ -170,13 +174,9 @@
             throws XmlPullParserException, IOException {
         super.inflate(r, parser, attrs, theme);
 
-        final LayerState state = mLayerState;
-        if (state == null) {
-            return;
-        }
-
         // The density may have changed since the last update. This will
         // apply scaling to any existing constant state properties.
+        final LayerState state = mLayerState;
         final int density = Drawable.resolveDensity(r, 0);
         state.setDensity(density);
 
@@ -202,10 +202,6 @@
         super.applyTheme(t);
 
         final LayerState state = mLayerState;
-        if (state == null) {
-            return;
-        }
-
         final int density = Drawable.resolveDensity(t.getResources(), 0);
         state.setDensity(density);
 
@@ -403,7 +399,7 @@
 
     @Override
     public boolean canApplyTheme() {
-        return (mLayerState != null && mLayerState.canApplyTheme()) || super.canApplyTheme();
+        return mLayerState.canApplyTheme() || super.canApplyTheme();
     }
 
     /**
@@ -1841,15 +1837,24 @@
                 final ConstantState cs = dr.getConstantState();
                 if (cs == null) {
                     clone = dr;
+                    if (dr.getCallback() != null) {
+                        // This drawable already has an owner.
+                        Log.w(LOG_TAG, "Invalid drawable added to LayerDrawable! Drawable already "
+                                + "belongs to another owner but does not expose a constant state.",
+                                new RuntimeException());
+                    }
                 } else if (res != null) {
                     clone = cs.newDrawable(res);
                 } else {
                     clone = cs.newDrawable();
                 }
-                clone.setCallback(owner);
                 clone.setLayoutDirection(dr.getLayoutDirection());
                 clone.setBounds(dr.getBounds());
                 clone.setLevel(dr.getLevel());
+
+                // Set the callback last to prevent invalidation from
+                // propagating before the constant state has been set.
+                clone.setCallback(owner);
             } else {
                 clone = null;
             }
diff --git a/graphics/java/android/graphics/fonts/FontVariationAxis.java b/graphics/java/android/graphics/fonts/FontVariationAxis.java
new file mode 100644
index 0000000..91ec0e8
--- /dev/null
+++ b/graphics/java/android/graphics/fonts/FontVariationAxis.java
@@ -0,0 +1,230 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.graphics.fonts;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.text.TextUtils;
+
+import java.util.ArrayList;
+import java.util.regex.Pattern;
+
+/**
+ * Class that holds information about single font variation axis.
+ */
+public final class FontVariationAxis implements Parcelable {
+    private final int mTag;
+    private final String mTagString;
+    private final float mStyleValue;
+
+    /**
+     * Construct FontVariationAxis.
+     *
+     * The axis tag must contain four ASCII characters. Tag string that are longer or shorter than
+     * four characters, or contains characters outside of U+0020..U+007E are invalid.
+     *
+     * @throws {@link InvalidFormatException} If given tag string is invalid.
+     */
+    public FontVariationAxis(@NonNull String tagString, float styleValue)
+            throws InvalidFormatException {
+        if (!isValidTag(tagString)) {
+            throw new InvalidFormatException("Invalid tag pattern: " + tagString);
+        }
+        mTag = makeTag(tagString);
+        mTagString = tagString;
+        mStyleValue = styleValue;
+    }
+
+    /**
+     * Returns the OpenType style tag value.
+     * @hide
+     */
+    public int getOpenTypeTagValue() {
+        return mTag;
+    }
+
+    /**
+     * Returns the variable font axis tag associated to this axis.
+     */
+    public String getTag() {
+        return mTagString;
+    }
+
+    /**
+     * Returns the style value associated to the given axis for this font.
+     */
+    public float getStyleValue() {
+        return mStyleValue;
+    }
+
+    /**
+     * @hide
+     */
+    public FontVariationAxis(Parcel in) {
+        mTag = in.readInt();
+        mTagString = in.readString();
+        mStyleValue = in.readFloat();
+    }
+
+    @Override
+    public void writeToParcel(Parcel out, int flag) {
+        out.writeInt(mTag);
+        out.writeString(mTagString);
+        out.writeFloat(mStyleValue);
+    }
+
+    @Override
+    public int describeContents() {
+        return 0;
+    }
+
+    public static final Creator<FontVariationAxis> CREATOR = new Creator<FontVariationAxis>() {
+        @Override
+        public FontVariationAxis createFromParcel(Parcel in) {
+            return new FontVariationAxis(in);
+        }
+
+        @Override
+        public FontVariationAxis[] newArray(int size) {
+            return new FontVariationAxis[size];
+        }
+    };
+
+    /**
+     * Returns a valid font variation setting string for this object.
+     */
+    @Override
+    public @NonNull String toString() {
+        return "'" + mTagString + "' " + Float.toString(mStyleValue);
+    }
+
+    /**
+     * The 'tag' attribute value is read as four character values between U+0020 and U+007E
+     * inclusive.
+     */
+    private static final Pattern TAG_PATTERN = Pattern.compile("[\u0020-\u007E]{4}");
+
+    /**
+     * Returns true if 'tagString' is valid for font variation axis tag.
+     */
+    private static boolean isValidTag(String tagString) {
+        return tagString != null && TAG_PATTERN.matcher(tagString).matches();
+    }
+
+    /**
+     * The 'styleValue' attribute has an optional leading '-', followed by '<digits>',
+     * '<digits>.<digits>', or '.<digits>' where '<digits>' is one or more of [0-9].
+     */
+    private static final Pattern STYLE_VALUE_PATTERN =
+            Pattern.compile("-?(([0-9]+(\\.[0-9]+)?)|(\\.[0-9]+))");
+
+    private static boolean isValidValueFormat(String valueString) {
+        return valueString != null && STYLE_VALUE_PATTERN.matcher(valueString).matches();
+    }
+
+    /** @hide */
+    public static int makeTag(String tagString) {
+        final char c1 = tagString.charAt(0);
+        final char c2 = tagString.charAt(1);
+        final char c3 = tagString.charAt(2);
+        final char c4 = tagString.charAt(3);
+        return (c1 << 24) | (c2 << 16) | (c3 << 8) | c4;
+    }
+
+    /**
+     * An exception indicates that the format of font variation settings is invalid.
+     */
+    public static class InvalidFormatException extends Exception {
+        public InvalidFormatException(String message) {
+            super(message);
+        }
+    };
+
+    /**
+     * Construct FontVariationAxis array from font variation settings.
+     *
+     * The settings string is constructed from multiple pairs of axis tag and style values. The axis
+     * tag must contain four ASCII characters and must be wrapped with single quotes (U+0027) or
+     * double quotes (U+0022). Axis strings that are longer or shorter than four characters, or
+     * contain characters outside of U+0020..U+007E are invalid. If a specified axis name is not
+     * defined in the font, the settings will be ignored.
+     *
+     * <pre>
+     *   FontVariationAxis.fromFontVariationSettings("'wdth' 1.0");
+     *   FontVariationAxis.fromFontVariationSettings("'AX  ' 1.0, 'FB  ' 2.0");
+     * </pre>
+     *
+     * @param settings font variation settings.
+     * @return FontVariationAxis[] the array of parsed font variation axis. {@code null} if settings
+     *                             has no font variation settings.
+     * @throws InvalidFormatException If given string is not a valid font variation settings format.
+     */
+    public static @Nullable FontVariationAxis[] fromFontVariationSettings(@Nullable String settings)
+            throws InvalidFormatException {
+        if (settings == null || settings.isEmpty()) {
+            return null;
+        }
+        final ArrayList<FontVariationAxis> axisList = new ArrayList<>();
+        final int length = settings.length();
+        for (int i = 0; i < length; i++) {
+            final char c = settings.charAt(i);
+            if (Character.isWhitespace(c)) {
+                continue;
+            }
+            if (!(c == '\'' || c == '"') || length < i + 6 || settings.charAt(i + 5) != c) {
+                throw new InvalidFormatException(
+                        "Tag should be wrapped with double or single quote: " + settings);
+            }
+            final String tagString = settings.substring(i + 1, i + 5);
+
+            i += 6;  // Move to end of tag.
+            int endOfValueString = settings.indexOf(',', i);
+            if (endOfValueString == -1) {
+                endOfValueString = length;
+            }
+            final float value;
+            try {
+                // Float.parseFloat ignores leading/trailing whitespaces.
+                value = Float.parseFloat(settings.substring(i, endOfValueString));
+            } catch (NumberFormatException e) {
+                throw new InvalidFormatException("Failed to parse float string: " + e.getMessage());
+            }
+            axisList.add(new FontVariationAxis(tagString, value));
+            i = endOfValueString;
+        }
+        if (axisList.isEmpty()) {
+            return null;
+        }
+        return axisList.toArray(new FontVariationAxis[0]);
+    }
+
+    /**
+     * Stringify the array of FontVariationAxis.
+     *
+     * @param axes an array of FontVariationAxis.
+     * @return String a valid font variation settings string.
+     */
+    public static @NonNull String toFontVariationSettings(@Nullable FontVariationAxis[] axes) {
+        if (axes == null || axes.length == 0) {
+            return "";
+        }
+        return TextUtils.join(",", axes);
+    }
+}
+
diff --git a/libs/hwui/GradientCache.cpp b/libs/hwui/GradientCache.cpp
index dceb285..d4d0c99 100644
--- a/libs/hwui/GradientCache.cpp
+++ b/libs/hwui/GradientCache.cpp
@@ -189,9 +189,9 @@
         float amount, uint8_t*& dst) const {
     float oppAmount = 1.0f - amount;
     float a = start.a * oppAmount + end.a * amount;
-    *dst++ = uint8_t(a * OECF(start.r * oppAmount + end.r * amount) * 255.0f);
-    *dst++ = uint8_t(a * OECF(start.g * oppAmount + end.g * amount) * 255.0f);
-    *dst++ = uint8_t(a * OECF(start.b * oppAmount + end.b * amount) * 255.0f);
+    *dst++ = uint8_t(OECF(start.r * oppAmount + end.r * amount) * 255.0f);
+    *dst++ = uint8_t(OECF(start.g * oppAmount + end.g * amount) * 255.0f);
+    *dst++ = uint8_t(OECF(start.b * oppAmount + end.b * amount) * 255.0f);
     *dst++ = uint8_t(a * 255.0f);
 }
 
@@ -202,13 +202,13 @@
     float* d = (float*) dst;
 #ifdef ANDROID_ENABLE_LINEAR_BLENDING
     // We want to stay linear
-    *d++ = a * (start.r * oppAmount + end.r * amount);
-    *d++ = a * (start.g * oppAmount + end.g * amount);
-    *d++ = a * (start.b * oppAmount + end.b * amount);
+    *d++ = (start.r * oppAmount + end.r * amount);
+    *d++ = (start.g * oppAmount + end.g * amount);
+    *d++ = (start.b * oppAmount + end.b * amount);
 #else
-    *d++ = a * OECF(start.r * oppAmount + end.r * amount);
-    *d++ = a * OECF(start.g * oppAmount + end.g * amount);
-    *d++ = a * OECF(start.b * oppAmount + end.b * amount);
+    *d++ = OECF(start.r * oppAmount + end.r * amount);
+    *d++ = OECF(start.g * oppAmount + end.g * amount);
+    *d++ = OECF(start.b * oppAmount + end.b * amount);
 #endif
     *d++ = a;
     dst += 4 * sizeof(float);
@@ -229,10 +229,10 @@
     ChannelMixer mix = gMixers[mUseFloatTexture];
 
     FloatColor start;
-    start.setUnPreMultiplied(colors[0]);
+    start.set(colors[0]);
 
     FloatColor end;
-    end.setUnPreMultiplied(colors[1]);
+    end.set(colors[1]);
 
     int currentPos = 1;
     float startPos = positions[0];
@@ -247,7 +247,7 @@
 
             currentPos++;
 
-            end.setUnPreMultiplied(colors[currentPos]);
+            end.set(colors[currentPos]);
             distance = positions[currentPos] - startPos;
         }
 
diff --git a/libs/hwui/ProgramCache.cpp b/libs/hwui/ProgramCache.cpp
index 1f78e09..d0f0949 100644
--- a/libs/hwui/ProgramCache.cpp
+++ b/libs/hwui/ProgramCache.cpp
@@ -295,10 +295,6 @@
         vec4 dither(const vec4 color) {
             return color + (triangleNoise(gl_FragCoord.xy * screenSize.xy) / 255.0);
         }
-        vec4 gradientMix(const vec4 a, const vec4 b, float v) {
-            vec4 c = mix(a, b, v);
-            return vec4(c.rgb * c.a, c.a);
-        }
         )__SHADER__",
         // sRGB framebuffer
         R"__SHADER__(
@@ -306,10 +302,6 @@
             vec3 dithered = sqrt(color.rgb) + (triangleNoise(gl_FragCoord.xy * screenSize.xy) / 255.0);
             return vec4(dithered * dithered, color.a);
         }
-        vec4 gradientMixMix(const vec4 a, const vec4 b, float v) {
-            vec4 c = mix(a, b, v);
-            return vec4(c.rgb * c.a, c.a);
-        }
         )__SHADER__",
 };
 
@@ -364,19 +356,19 @@
         // Linear
         "    vec4 gradientColor = texture2D(gradientSampler, linear);\n",
 
-        "    vec4 gradientColor = gradientMix(startColor, endColor, clamp(linear, 0.0, 1.0));\n",
+        "    vec4 gradientColor = mix(startColor, endColor, clamp(linear, 0.0, 1.0));\n",
 
         // Circular
         "    vec4 gradientColor = texture2D(gradientSampler, vec2(length(circular), 0.5));\n",
 
-        "    vec4 gradientColor = gradientMix(startColor, endColor, clamp(length(circular), 0.0, 1.0));\n",
+        "    vec4 gradientColor = mix(startColor, endColor, clamp(length(circular), 0.0, 1.0));\n",
 
         // Sweep
         "    highp float index = atan(sweep.y, sweep.x) * 0.15915494309; // inv(2 * PI)\n"
         "    vec4 gradientColor = texture2D(gradientSampler, vec2(index - floor(index), 0.5));\n",
 
         "    highp float index = atan(sweep.y, sweep.x) * 0.15915494309; // inv(2 * PI)\n"
-        "    vec4 gradientColor = gradientMix(startColor, endColor, clamp(index - floor(index), 0.0, 1.0));\n"
+        "    vec4 gradientColor = mix(startColor, endColor, clamp(index - floor(index), 0.0, 1.0));\n"
 };
 const char* gFS_Main_FetchBitmap =
         "    vec4 bitmapColor = colorConvert(texture2D(bitmapSampler, outBitmapTexCoords));\n";
diff --git a/libs/hwui/SkiaShader.cpp b/libs/hwui/SkiaShader.cpp
index 8a504d4..5c5378b 100644
--- a/libs/hwui/SkiaShader.cpp
+++ b/libs/hwui/SkiaShader.cpp
@@ -173,8 +173,8 @@
         outData->gradientSampler = 0;
         outData->gradientTexture = nullptr;
 
-        outData->startColor.setUnPreMultiplied(gradInfo.fColors[0]);
-        outData->endColor.setUnPreMultiplied(gradInfo.fColors[1]);
+        outData->startColor.set(gradInfo.fColors[0]);
+        outData->endColor.set(gradInfo.fColors[1]);
     }
 
     return true;
diff --git a/libs/hwui/hwui_static_deps.mk b/libs/hwui/hwui_static_deps.mk
index 7f06421..8826cfc 100644
--- a/libs/hwui/hwui_static_deps.mk
+++ b/libs/hwui/hwui_static_deps.mk
@@ -27,5 +27,7 @@
     libft2 \
     libminikin \
     libandroidfw \
-    libRScpp \
+    libRScpp
+
+LOCAL_STATIC_LIBRARIES += \
     libplatformprotos
diff --git a/media/java/android/media/tv/TvContract.java b/media/java/android/media/tv/TvContract.java
index d8c3eca..0b27d18 100644
--- a/media/java/android/media/tv/TvContract.java
+++ b/media/java/android/media/tv/TvContract.java
@@ -568,9 +568,10 @@
     }
 
     /**
-     * Common base for the tables of TV programs.
+     * Common columns for the tables of TV programs.
+     * @hide
      */
-    public interface BaseProgramColumns extends BaseTvColumns {
+    interface ProgramColumns {
         /**
          * The title of this TV program.
          *
@@ -836,9 +837,10 @@
     }
 
     /**
-     * Common base for the tables of preview programs.
+     * Common columns for the tables of preview programs.
+     * @hide
      */
-    public interface BasePreviewProgramColumns extends BaseProgramColumns {
+    interface PreviewProgramColumns {
 
         /** @hide */
         @IntDef({
@@ -2227,7 +2229,7 @@
      * <p>By default, the query results will be sorted by
      * {@link Programs#COLUMN_START_TIME_UTC_MILLIS} in ascending order.
      */
-    public static final class Programs implements BaseProgramColumns {
+    public static final class Programs implements BaseTvColumns, ProgramColumns {
 
         /** The content:// style URI for this table. */
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
@@ -2541,7 +2543,7 @@
      * <p>By default, the query results will be sorted by {@link #COLUMN_START_TIME_UTC_MILLIS} in
      * ascending order.
      */
-    public static final class RecordedPrograms implements BaseProgramColumns {
+    public static final class RecordedPrograms implements BaseTvColumns, ProgramColumns {
 
         /** The content:// style URI for this table. */
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
@@ -2663,7 +2665,8 @@
     /**
      * Column definitions for the preview TV programs table.
      */
-    public static final class PreviewPrograms implements BasePreviewProgramColumns {
+    public static final class PreviewPrograms implements BaseTvColumns, ProgramColumns,
+        PreviewProgramColumns {
 
         /** The content:// style URI for this table. */
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
@@ -2709,7 +2712,8 @@
     /**
      * Column definitions for the "watch next" TV programs table.
      */
-    public static final class WatchNextPrograms implements BasePreviewProgramColumns {
+    public static final class WatchNextPrograms implements BaseTvColumns, ProgramColumns,
+        PreviewProgramColumns {
 
         /** The content:// style URI for this table. */
         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
diff --git a/native/android/libandroid.map.txt b/native/android/libandroid.map.txt
index c7bed9b..c82a1f6 100644
--- a/native/android/libandroid.map.txt
+++ b/native/android/libandroid.map.txt
@@ -153,6 +153,7 @@
     ANativeWindow_acquire;
     ANativeWindow_fromSurface;
     ANativeWindow_fromSurfaceTexture; # introduced-arm=13 introduced-mips=13 introduced-x86=13
+    ANativeWindow_toSurface; # introduced=26
     ANativeWindow_getFormat;
     ANativeWindow_getHeight;
     ANativeWindow_getWidth;
diff --git a/native/android/native_window_jni.cpp b/native/android/native_window_jni.cpp
index dc30405..859c550 100644
--- a/native/android/native_window_jni.cpp
+++ b/native/android/native_window_jni.cpp
@@ -20,6 +20,7 @@
 #include <android/native_window.h>
 #include <system/window.h>
 
+#include <gui/Surface.h>
 #include <utils/StrongPointer.h>
 
 #include <android_runtime/android_view_Surface.h>
@@ -33,3 +34,11 @@
     }
     return win.get();
 }
+
+jobject ANativeWindow_toSurface(JNIEnv* env, ANativeWindow* window) {
+    if (window == NULL) {
+        return NULL;
+    }
+    sp<Surface> surface = static_cast<Surface*>(window);
+    return android_view_Surface_createFromSurface(env, surface);
+}
diff --git a/packages/SettingsLib/res/values/strings.xml b/packages/SettingsLib/res/values/strings.xml
index f14d0d1..ad985c7 100644
--- a/packages/SettingsLib/res/values/strings.xml
+++ b/packages/SettingsLib/res/values/strings.xml
@@ -928,4 +928,18 @@
          [CHAR LIMIT=35] -->
     <string name="use_system_language_to_select_input_method_subtypes">Use system languages</string>
 
+    <!-- Toast that settings for an application is failed to open. -->
+    <string name="failed_to_open_app_settings_toast">Failed to open settings for <xliff:g id="spell_application_name">%1$s</xliff:g></string>
+
+    <!-- Warning message about security implications of enabling an input method, displayed as a dialog
+         message when the user selects to enable an IME. -->
+    <string name="ime_security_warning">This input method may be able to collect
+        all the text you type, including personal data like passwords and credit
+        card numbers.  It comes from the app
+        <xliff:g id="ime_application_name">%1$s</xliff:g>.
+        Use this input method?</string>
+
+    <!-- [CHAR LIMIT=NONE] Dialog body explaining that the app just selected by the user will not work after a reboot until until after the user enters their credentials, such as a PIN or password. -->
+    <string name="direct_boot_unaware_dialog_message">Note: After a reboot, this app can\'t start until you unlock your phone</string>
+
 </resources>
diff --git a/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothDiscoverableTimeoutReceiver.java b/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothDiscoverableTimeoutReceiver.java
index 69b45e5..9ea7a4a 100644
--- a/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothDiscoverableTimeoutReceiver.java
+++ b/packages/SettingsLib/src/com/android/settingslib/bluetooth/BluetoothDiscoverableTimeoutReceiver.java
@@ -71,14 +71,15 @@
 
     @Override
     public void onReceive(Context context, Intent intent) {
+        if (intent.getAction() == null || !intent.getAction().equals(INTENT_DISCOVERABLE_TIMEOUT)) {
+            return;
+        }
         LocalBluetoothAdapter localBluetoothAdapter = LocalBluetoothAdapter.getInstance();
-
-         if(localBluetoothAdapter != null  &&
+        if(localBluetoothAdapter != null  &&
             localBluetoothAdapter.getState() == BluetoothAdapter.STATE_ON) {
             Log.d(TAG, "Disable discoverable...");
-
             localBluetoothAdapter.setScanMode(BluetoothAdapter.SCAN_MODE_CONNECTABLE);
-         } else {
+        } else {
             Log.e(TAG, "localBluetoothAdapter is NULL!!");
         }
     }
diff --git a/packages/SettingsLib/src/com/android/settingslib/inputmethod/InputMethodPreference.java b/packages/SettingsLib/src/com/android/settingslib/inputmethod/InputMethodPreference.java
new file mode 100755
index 0000000..1bbc878b
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/inputmethod/InputMethodPreference.java
@@ -0,0 +1,300 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settingslib.inputmethod;
+
+import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
+
+import android.app.AlertDialog;
+import android.content.ActivityNotFoundException;
+import android.content.Context;
+import android.content.Intent;
+import android.content.res.Configuration;
+import android.os.UserHandle;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.Preference.OnPreferenceChangeListener;
+import android.support.v7.preference.Preference.OnPreferenceClickListener;
+import android.text.TextUtils;
+import android.util.Log;
+import android.view.inputmethod.InputMethodInfo;
+import android.view.inputmethod.InputMethodManager;
+import android.view.inputmethod.InputMethodSubtype;
+import android.widget.Toast;
+
+import com.android.internal.inputmethod.InputMethodUtils;
+import com.android.settingslib.R;
+import com.android.settingslib.RestrictedLockUtils;
+import com.android.settingslib.RestrictedSwitchPreference;
+
+import java.text.Collator;
+import java.util.List;
+
+/**
+ * Input method preference.
+ *
+ * This preference represents an IME. It is used for two purposes. 1) An instance with a switch
+ * is used to enable or disable the IME. 2) An instance without a switch is used to invoke the
+ * setting activity of the IME.
+ */
+public class InputMethodPreference extends RestrictedSwitchPreference implements OnPreferenceClickListener,
+        OnPreferenceChangeListener {
+    private static final String TAG = InputMethodPreference.class.getSimpleName();
+    private static final String EMPTY_TEXT = "";
+    private static final int NO_WIDGET = 0;
+
+    public interface OnSavePreferenceListener {
+        /**
+         * Called when this preference needs to be saved its state.
+         *
+         * Note that this preference is non-persistent and needs explicitly to be saved its state.
+         * Because changing one IME state may change other IMEs' state, this is a place to update
+         * other IMEs' state as well.
+         *
+         * @param pref This preference.
+         */
+        void onSaveInputMethodPreference(InputMethodPreference pref);
+    }
+
+    private final InputMethodInfo mImi;
+    private final boolean mHasPriorityInSorting;
+    private final OnSavePreferenceListener mOnSaveListener;
+    private final InputMethodSettingValuesWrapper mInputMethodSettingValues;
+    private final boolean mIsAllowedByOrganization;
+
+    private AlertDialog mDialog = null;
+
+    /**
+     * A preference entry of an input method.
+     *
+     * @param context The Context this is associated with.
+     * @param imi The {@link InputMethodInfo} of this preference.
+     * @param isImeEnabler true if this preference is the IME enabler that has enable/disable
+     *     switches for all available IMEs, not the list of enabled IMEs.
+     * @param isAllowedByOrganization false if the IME has been disabled by a device or profile
+     *     owner.
+     * @param onSaveListener The listener called when this preference has been changed and needs
+     *     to save the state to shared preference.
+     */
+    public InputMethodPreference(final Context context, final InputMethodInfo imi,
+            final boolean isImeEnabler, final boolean isAllowedByOrganization,
+            final OnSavePreferenceListener onSaveListener) {
+        super(context);
+        setPersistent(false);
+        mImi = imi;
+        mIsAllowedByOrganization = isAllowedByOrganization;
+        mOnSaveListener = onSaveListener;
+        if (!isImeEnabler) {
+            // Remove switch widget.
+            setWidgetLayoutResource(NO_WIDGET);
+        }
+        // Disable on/off switch texts.
+        setSwitchTextOn(EMPTY_TEXT);
+        setSwitchTextOff(EMPTY_TEXT);
+        setKey(imi.getId());
+        setTitle(imi.loadLabel(context.getPackageManager()));
+        final String settingsActivity = imi.getSettingsActivity();
+        if (TextUtils.isEmpty(settingsActivity)) {
+            setIntent(null);
+        } else {
+            // Set an intent to invoke settings activity of an input method.
+            final Intent intent = new Intent(Intent.ACTION_MAIN);
+            intent.setClassName(imi.getPackageName(), settingsActivity);
+            setIntent(intent);
+        }
+        mInputMethodSettingValues = InputMethodSettingValuesWrapper.getInstance(context);
+        mHasPriorityInSorting = InputMethodUtils.isSystemIme(imi)
+                && mInputMethodSettingValues.isValidSystemNonAuxAsciiCapableIme(imi, context);
+        setOnPreferenceClickListener(this);
+        setOnPreferenceChangeListener(this);
+    }
+
+    public InputMethodInfo getInputMethodInfo() {
+        return mImi;
+    }
+
+    private boolean isImeEnabler() {
+        // If this {@link SwitchPreference} doesn't have a widget layout, we explicitly hide the
+        // switch widget at constructor.
+        return getWidgetLayoutResource() != NO_WIDGET;
+    }
+
+    @Override
+    public boolean onPreferenceChange(final Preference preference, final Object newValue) {
+        // Always returns false to prevent default behavior.
+        // See {@link TwoStatePreference#onClick()}.
+        if (!isImeEnabler()) {
+            // Prevent disabling an IME because this preference is for invoking a settings activity.
+            return false;
+        }
+        if (isChecked()) {
+            // Disable this IME.
+            setCheckedInternal(false);
+            return false;
+        }
+        if (InputMethodUtils.isSystemIme(mImi)) {
+            // Enable a system IME. No need to show a security warning dialog,
+            // but we might need to prompt if it's not Direct Boot aware.
+            // TV doesn't doesn't need to worry about this, but other platforms should show
+            // a warning.
+            if (mImi.getServiceInfo().directBootAware || isTv()) {
+                setCheckedInternal(true);
+            } else if (!isTv()){
+                showDirectBootWarnDialog();
+            }
+        } else {
+            // Once security is confirmed, we might prompt if the IME isn't
+            // Direct Boot aware.
+            showSecurityWarnDialog();
+        }
+        return false;
+    }
+
+    @Override
+    public boolean onPreferenceClick(final Preference preference) {
+        // Always returns true to prevent invoking an intent without catching exceptions.
+        // See {@link Preference#performClick(PreferenceScreen)}/
+        if (isImeEnabler()) {
+            // Prevent invoking a settings activity because this preference is for enabling and
+            // disabling an input method.
+            return true;
+        }
+        final Context context = getContext();
+        try {
+            final Intent intent = getIntent();
+            if (intent != null) {
+                // Invoke a settings activity of an input method.
+                context.startActivity(intent);
+            }
+        } catch (final ActivityNotFoundException e) {
+            Log.d(TAG, "IME's Settings Activity Not Found", e);
+            final String message = context.getString(
+                    R.string.failed_to_open_app_settings_toast,
+                    mImi.loadLabel(context.getPackageManager()));
+            Toast.makeText(context, message, Toast.LENGTH_LONG).show();
+        }
+        return true;
+    }
+
+    public void updatePreferenceViews() {
+        final boolean isAlwaysChecked = mInputMethodSettingValues.isAlwaysCheckedIme(
+                mImi, getContext());
+        // When this preference has a switch and an input method should be always enabled,
+        // this preference should be disabled to prevent accidentally disabling an input method.
+        // This preference should also be disabled in case the admin does not allow this input
+        // method.
+        if (isAlwaysChecked && isImeEnabler()) {
+            setDisabledByAdmin(null);
+            setEnabled(false);
+        } else if (!mIsAllowedByOrganization) {
+            EnforcedAdmin admin =
+                    RestrictedLockUtils.checkIfInputMethodDisallowed(getContext(),
+                            mImi.getPackageName(), UserHandle.myUserId());
+            setDisabledByAdmin(admin);
+        } else {
+            setEnabled(true);
+        }
+        setChecked(mInputMethodSettingValues.isEnabledImi(mImi));
+        if (!isDisabledByAdmin()) {
+            setSummary(getSummaryString());
+        }
+    }
+
+    private InputMethodManager getInputMethodManager() {
+        return (InputMethodManager)getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
+    }
+
+    private String getSummaryString() {
+        final InputMethodManager imm = getInputMethodManager();
+        final List<InputMethodSubtype> subtypes = imm.getEnabledInputMethodSubtypeList(mImi, true);
+        return InputMethodAndSubtypeUtil.getSubtypeLocaleNameListAsSentence(
+                subtypes, getContext(), mImi);
+    }
+
+    private void setCheckedInternal(boolean checked) {
+        super.setChecked(checked);
+        mOnSaveListener.onSaveInputMethodPreference(InputMethodPreference.this);
+        notifyChanged();
+    }
+
+    private void showSecurityWarnDialog() {
+        if (mDialog != null && mDialog.isShowing()) {
+            mDialog.dismiss();
+        }
+        final Context context = getContext();
+        final AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setCancelable(true /* cancelable */);
+        builder.setTitle(android.R.string.dialog_alert_title);
+        final CharSequence label = mImi.getServiceInfo().applicationInfo.loadLabel(
+                context.getPackageManager());
+        builder.setMessage(context.getString(R.string.ime_security_warning, label));
+        builder.setPositiveButton(android.R.string.ok, (dialog, which) -> {
+            // The user confirmed to enable a 3rd party IME, but we might
+            // need to prompt if it's not Direct Boot aware.
+            // TV doesn't doesn't need to worry about this, but other platforms should show
+            // a warning.
+            if (mImi.getServiceInfo().directBootAware || isTv()) {
+                setCheckedInternal(true);
+            } else {
+                showDirectBootWarnDialog();
+            }
+        });
+        builder.setNegativeButton(android.R.string.cancel, (dialog, which) -> {
+            // The user canceled to enable a 3rd party IME.
+            setCheckedInternal(false);
+        });
+        mDialog = builder.create();
+        mDialog.show();
+    }
+
+    private boolean isTv() {
+        return (getContext().getResources().getConfiguration().uiMode
+                & Configuration.UI_MODE_TYPE_MASK) == Configuration.UI_MODE_TYPE_TELEVISION;
+    }
+
+    private void showDirectBootWarnDialog() {
+        if (mDialog != null && mDialog.isShowing()) {
+            mDialog.dismiss();
+        }
+        final Context context = getContext();
+        final AlertDialog.Builder builder = new AlertDialog.Builder(context);
+        builder.setCancelable(true /* cancelable */);
+        builder.setMessage(context.getText(R.string.direct_boot_unaware_dialog_message));
+        builder.setPositiveButton(android.R.string.ok, (dialog, which) -> setCheckedInternal(true));
+        builder.setNegativeButton(android.R.string.cancel,
+                (dialog, which) -> setCheckedInternal(false));
+        mDialog = builder.create();
+        mDialog.show();
+    }
+
+    public int compareTo(final InputMethodPreference rhs, final Collator collator) {
+        if (this == rhs) {
+            return 0;
+        }
+        if (mHasPriorityInSorting == rhs.mHasPriorityInSorting) {
+            final CharSequence t0 = getTitle();
+            final CharSequence t1 = rhs.getTitle();
+            if (TextUtils.isEmpty(t0)) {
+                return 1;
+            }
+            if (TextUtils.isEmpty(t1)) {
+                return -1;
+            }
+            return collator.compare(t0.toString(), t1.toString());
+        }
+        // Prefer always checked system IMEs
+        return mHasPriorityInSorting ? -1 : 1;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSSecurityFooter.java b/packages/SystemUI/src/com/android/systemui/qs/QSSecurityFooter.java
index 4b2c20f..5b9d95d 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSSecurityFooter.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSSecurityFooter.java
@@ -1,3 +1,4 @@
+
 /*
  * Copyright (C) 2014 The Android Open Source Project
  *
@@ -358,9 +359,8 @@
         @Override
         public void onClick(View widget) {
             final Intent intent = new Intent(Settings.ACTION_ENTERPRISE_PRIVACY_SETTINGS);
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
             mDialog.dismiss();
-            mContext.startActivity(intent);
+            mActivityStarter.postStartActivityDismissingKeyguard(intent, 0);
         }
 
         @Override
@@ -373,9 +373,8 @@
         @Override
         public void onClick(View widget) {
             final Intent intent = new Intent(Settings.ACTION_VPN_SETTINGS);
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
             mDialog.dismiss();
-            mContext.startActivity(intent);
+            mActivityStarter.postStartActivityDismissingKeyguard(intent, 0);
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
index 1c71da0..3a43d30 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
@@ -355,9 +355,10 @@
                 rti.firstActiveTime = rti.lastActiveTime = i;
                 if (i % 2 == 0) {
                     rti.taskDescription = new ActivityManager.TaskDescription(description,
-                        Bitmap.createBitmap(mDummyIcon), null,
-                        0xFF000000 | (0xFFFFFF & new Random().nextInt()),
-                        0xFF000000 | (0xFFFFFF & new Random().nextInt()));
+                            Bitmap.createBitmap(mDummyIcon), null,
+                            0xFF000000 | (0xFFFFFF & new Random().nextInt()),
+                            0xFF000000 | (0xFFFFFF & new Random().nextInt()),
+                            0, 0);
                 } else {
                     rti.taskDescription = new ActivityManager.TaskDescription();
                 }
diff --git a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
index 97506e6..0ee3e19 100644
--- a/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
+++ b/packages/SystemUI/src/com/android/systemui/stackdivider/DividerView.java
@@ -58,6 +58,7 @@
 import com.android.internal.policy.DividerSnapAlgorithm;
 import com.android.internal.policy.DividerSnapAlgorithm.SnapTarget;
 import com.android.internal.policy.DockedDividerUtils;
+import com.android.internal.view.SurfaceFlingerVsyncChoreographer;
 import com.android.systemui.Interpolators;
 import com.android.systemui.R;
 import com.android.systemui.recents.Recents;
@@ -108,9 +109,6 @@
     private static final Interpolator IME_ADJUST_INTERPOLATOR =
             new PathInterpolator(0.2f, 0f, 0.1f, 1f);
 
-    private static final long ONE_MS_IN_NS = 1000000;
-    private static final long ONE_S_IN_NS = ONE_MS_IN_NS * 1000;
-
     private static final int MSG_RESIZE_STACK = 0;
 
     private DividerHandleView mHandle;
@@ -161,12 +159,7 @@
     private boolean mHomeStackResizable;
     private boolean mAdjustedForIme;
     private DividerState mState;
-
-    /**
-     * The offset between vsync-app and vsync-surfaceflinger. See
-     * {@link #calculateAppSurfaceFlingerVsyncOffsetMs} why this is necessary.
-     */
-    private long mSurfaceFlingerOffsetMs;
+    private SurfaceFlingerVsyncChoreographer mSfChoreographer;
 
     private final Handler mHandler = new Handler() {
         @Override
@@ -319,7 +312,7 @@
     protected void onAttachedToWindow() {
         super.onAttachedToWindow();
         EventBus.getDefault().register(this);
-        mSurfaceFlingerOffsetMs = calculateAppSurfaceFlingerVsyncOffsetMs();
+        mSfChoreographer = new SurfaceFlingerVsyncChoreographer(mHandler, getDisplay());
     }
 
     @Override
@@ -328,25 +321,6 @@
         EventBus.getDefault().unregister(this);
     }
 
-    /**
-     * This method calculates the offset between vsync-surfaceflinger and vsync-app. If vsync-app
-     * is a couple of milliseconds before vsync-sf, a touch or animation event that causes the
-     * stacks to be resized are sometimes processed before the vsync-sf tick, and sometimes after,
-     * which leads to jank. Figure out this difference here and then post all the touch/animation
-     * events to start being processed at vsync-sf.
-     *
-     * @return The offset between vsync-app and vsync-sf, or 0 if vsync app happens after vsync-sf.
-     */
-    private long calculateAppSurfaceFlingerVsyncOffsetMs() {
-        Display display = getDisplay();
-
-        // Calculate vsync offset from SurfaceFlinger.
-        // See frameworks/native/services/surfaceflinger/SurfaceFlinger.cpp:getDisplayConfigs
-        long vsyncPeriod = (long) (ONE_S_IN_NS / display.getRefreshRate());
-        long sfVsyncOffset = vsyncPeriod - (display.getPresentationDeadlineNanos() - ONE_MS_IN_NS);
-        return Math.max(0, (sfVsyncOffset - display.getAppVsyncOffsetNanos()) / ONE_MS_IN_NS);
-    }
-
     @Override
     public WindowInsets onApplyWindowInsets(WindowInsets insets) {
         if (mStableInsets.left != insets.getStableInsetLeft()
@@ -630,8 +604,8 @@
                     delay = endDelay;
                 } else if (mCancelled) {
                     delay = 0;
-                } else if (mSurfaceFlingerOffsetMs != 0) {
-                    delay = mSurfaceFlingerOffsetMs;
+                } else if (mSfChoreographer.getSurfaceFlingerOffsetMs() > 0) {
+                    delay = mSfChoreographer.getSurfaceFlingerOffsetMs();
                 }
                 if (delay == 0) {
                     endAction.run();
@@ -916,14 +890,10 @@
     }
 
     public void resizeStackDelayed(int position, int taskPosition, SnapTarget taskSnapTarget) {
-        if (mSurfaceFlingerOffsetMs != 0) {
-            Message message = mHandler.obtainMessage(MSG_RESIZE_STACK, position, taskPosition,
-                    taskSnapTarget);
-            message.setAsynchronous(true);
-            mHandler.sendMessageDelayed(message, mSurfaceFlingerOffsetMs);
-        } else {
-            resizeStack(position, taskPosition, taskSnapTarget);
-        }
+        Message message = mHandler.obtainMessage(MSG_RESIZE_STACK, position, taskPosition,
+                taskSnapTarget);
+        message.setAsynchronous(true);
+        mSfChoreographer.scheduleAtSfVsync(mHandler, message);
     }
 
     public void resizeStack(int position, int taskPosition, SnapTarget taskSnapTarget) {
diff --git a/preloaded-classes b/preloaded-classes
index a72a042..892c593 100644
--- a/preloaded-classes
+++ b/preloaded-classes
@@ -1817,7 +1817,6 @@
 android.text.FontConfig$Family$1
 android.text.FontConfig$Font
 android.text.FontConfig$Font$1
-android.text.FontManager
 android.text.GetChars
 android.text.GraphicsOperations
 android.text.Html
diff --git a/proto/src/system_messages.proto b/proto/src/system_messages.proto
index f6d91f4..c4a2831 100644
--- a/proto/src/system_messages.proto
+++ b/proto/src/system_messages.proto
@@ -165,6 +165,14 @@
     // Package: android
     NOTE_NET_LIMIT_SNOOZED = 36;
 
+    // Inform the user they need to sign in to an account
+    // Package: android, and others
+    NOTE_ACCOUNT_REQUIRE_SIGNIN = 37;
+
+    // Inform the user that there has been a permission request for an account
+    // Package: android
+    NOTE_ACCOUNT_CREDENTIAL_PERMISSION = 38;
+
     // ADD_NEW_IDS_ABOVE_THIS_LINE
     // Legacy IDs with arbitrary values appear below
     // Legacy IDs existed as stable non-conflicting constants prior to the O release
@@ -216,9 +224,5 @@
     // Notify the user that data or apps are being moved to external storage.
     // Package: com.android.systemui
     NOTE_STORAGE_MOVE = 0x534d4f56;
-
-    // Account Manager allocates IDs sequentially, starting here.
-    // Package: android
-    ACCOUNT_MANAGER_BASE = 0x70000000;
   }
 }
diff --git a/rs/jni/android_renderscript_RenderScript.cpp b/rs/jni/android_renderscript_RenderScript.cpp
index c532efb..0acbb02 100644
--- a/rs/jni/android_renderscript_RenderScript.cpp
+++ b/rs/jni/android_renderscript_RenderScript.cpp
@@ -1282,7 +1282,9 @@
 
     ANativeWindow *anw = nullptr;
     if (sur != 0) {
+        // Connect the native window handle to buffer queue.
         anw = ANativeWindow_fromSurface(_env, sur);
+        native_window_api_connect(anw, NATIVE_WINDOW_API_CPU);
     }
 
     rsAllocationSetSurface((RsContext)con, (RsAllocation)alloc, anw);
diff --git a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
index 087c248..1968d2e 100644
--- a/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
+++ b/services/accessibility/java/com/android/server/accessibility/AccessibilityManagerService.java
@@ -585,17 +585,12 @@
             result = mEnabledServicesForFeedbackTempList;
             result.clear();
             List<Service> services = userState.mBoundServices;
-            while (feedbackType != 0) {
-                final int feedbackTypeBit = (1 << Integer.numberOfTrailingZeros(feedbackType));
-                feedbackType &= ~feedbackTypeBit;
-                final int serviceCount = services.size();
-                for (int i = 0; i < serviceCount; i++) {
-                    Service service = services.get(i);
-                    // Don't report the UIAutomation (fake service)
-                    if (!sFakeAccessibilityServiceComponentName.equals(service.mComponentName)
-                            && (service.mFeedbackType & feedbackTypeBit) != 0) {
-                        result.add(service.mAccessibilityServiceInfo);
-                    }
+            for (int serviceCount = services.size(), i = 0; i < serviceCount; ++i) {
+                Service service = services.get(i);
+                // Don't report the UIAutomation (fake service)
+                if (!sFakeAccessibilityServiceComponentName.equals(service.mComponentName)
+                        && (service.mFeedbackType & feedbackType) != 0) {
+                    result.add(service.mAccessibilityServiceInfo);
                 }
             }
         }
diff --git a/services/core/Android.mk b/services/core/Android.mk
index 099f557..8003d21 100644
--- a/services/core/Android.mk
+++ b/services/core/Android.mk
@@ -39,8 +39,8 @@
 
 LOCAL_JACK_FLAGS := \
  -D jack.transformations.boost-locked-region-priority=true \
- -D jack.transformations.boost-locked-region-priority.classname=com.android.server.am.ActivityManagerService \
- -D jack.transformations.boost-locked-region-priority.request=com.android.server.am.ActivityManagerService\#boostPriorityForLockedSection \
- -D jack.transformations.boost-locked-region-priority.reset=com.android.server.am.ActivityManagerService\#resetPriorityAfterLockedSection
+ -D jack.transformations.boost-locked-region-priority.classname=com.android.server.am.ActivityManagerService,com.android.server.wm.WindowHashMap \
+ -D jack.transformations.boost-locked-region-priority.request=com.android.server.am.ActivityManagerService\#boostPriorityForLockedSection,com.android.server.wm.WindowManagerService\#boostPriorityForLockedSection \
+ -D jack.transformations.boost-locked-region-priority.reset=com.android.server.am.ActivityManagerService\#resetPriorityAfterLockedSection,com.android.server.wm.WindowManagerService\#resetPriorityAfterLockedSection
 
 include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/services/core/java/com/android/server/FontManagerService.java b/services/core/java/com/android/server/FontManagerService.java
deleted file mode 100644
index f172647..0000000
--- a/services/core/java/com/android/server/FontManagerService.java
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.server;
-
-import android.content.Context;
-import android.graphics.FontListParser;
-import android.net.Uri;
-import android.os.ParcelFileDescriptor;
-import android.text.FontConfig;
-import android.util.Slog;
-
-import com.android.internal.annotations.GuardedBy;
-import com.android.internal.font.IFontManager;
-
-import org.xmlpull.v1.XmlPullParserException;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-
-public class FontManagerService extends IFontManager.Stub {
-    private static final String TAG = "FontManagerService";
-    private static final String FONTS_CONFIG = "/system/etc/fonts.xml";
-    private static final String SYSTEM_FONT_DIR = "/system/fonts/";
-
-    @GuardedBy("mLock")
-    private FontConfig mConfig;
-    private final Object mLock = new Object();
-
-    public static final class Lifecycle extends SystemService {
-        private final FontManagerService mService;
-
-        public Lifecycle(Context context) {
-            super(context);
-            mService = new FontManagerService();
-        }
-
-        @Override
-        public void onStart() {
-            try {
-                publishBinderService(Context.FONT_SERVICE, mService);
-            } catch (Throwable t) {
-                // Starting this service is not critical to the running of this device and should
-                // therefore not crash the device. If it fails, log the error and continue.
-                Slog.e(TAG, "Could not start the FontManagerService.", t);
-            }
-        }
-    }
-
-    @Override
-    public FontConfig getSystemFonts() {
-        synchronized (mLock) {
-            if (mConfig != null) {
-                return mConfig;
-            }
-
-            mConfig = loadFromSystem();
-            if (mConfig == null) {
-                return null;
-            }
-
-            for (FontConfig.Family family : mConfig.getFamilies()) {
-                for (FontConfig.Font font : family.getFonts()) {
-                    File fontFile = new File(SYSTEM_FONT_DIR, font.getFontName());
-                    font.setUri(Uri.fromFile(fontFile));
-                }
-            }
-
-            return mConfig;
-        }
-    }
-
-    private FontConfig loadFromSystem() {
-        File configFilename = new File(FONTS_CONFIG);
-        try {
-            FileInputStream fontsIn = new FileInputStream(configFilename);
-            return FontListParser.parse(fontsIn);
-        } catch (IOException | XmlPullParserException e) {
-            Slog.e(TAG, "Error opening " + configFilename, e);
-        }
-        return null;
-    }
-
-    public FontManagerService() {
-    }
-}
diff --git a/services/core/java/com/android/server/NetworkScoreService.java b/services/core/java/com/android/server/NetworkScoreService.java
index a5debda..9218c25 100644
--- a/services/core/java/com/android/server/NetworkScoreService.java
+++ b/services/core/java/com/android/server/NetworkScoreService.java
@@ -280,6 +280,7 @@
         if (DBG) Log.d(TAG, "refreshBinding()");
         // Make sure the scorer is up-to-date
         mNetworkScorerAppManager.updateState();
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
         registerPackageMonitorIfNeeded();
         bindToScoringServiceIfNeeded();
     }
diff --git a/services/core/java/com/android/server/NetworkScorerAppManager.java b/services/core/java/com/android/server/NetworkScorerAppManager.java
index 1a3bb35..e127eb9 100644
--- a/services/core/java/com/android/server/NetworkScorerAppManager.java
+++ b/services/core/java/com/android/server/NetworkScorerAppManager.java
@@ -42,7 +42,6 @@
  *
  * @hide
  */
-@VisibleForTesting
 public class NetworkScorerAppManager {
     private static final String TAG = "NetworkScorerAppManager";
     private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
@@ -64,8 +63,7 @@
      * Returns the list of available scorer apps. The list will be empty if there are
      * no valid scorers.
      */
-    @VisibleForTesting
-    public List<NetworkScorerAppData> getAllValidScorers() {
+    List<NetworkScorerAppData> getAllValidScorers() {
         if (VERBOSE) Log.v(TAG, "getAllValidScorers()");
         final PackageManager pm = mContext.getPackageManager();
         final Intent serviceIntent = new Intent(NetworkScoreManager.ACTION_RECOMMEND_NETWORKS);
@@ -170,8 +168,7 @@
      *     it was disabled or uninstalled).
      */
     @Nullable
-    @VisibleForTesting
-    public NetworkScorerAppData getActiveScorer() {
+    NetworkScorerAppData getActiveScorer() {
         final int enabledSetting = getNetworkRecommendationsEnabledSetting();
         if (enabledSetting == NetworkScoreManager.RECOMMENDATIONS_ENABLED_FORCED_OFF) {
             return null;
@@ -214,8 +211,7 @@
      * @return true if the scorer was changed, or false if the package is not a valid scorer or
      *         a valid network recommendation provider exists.
      */
-    @VisibleForTesting
-    public boolean setActiveScorer(String packageName) {
+    boolean setActiveScorer(String packageName) {
         final String oldPackageName = getNetworkRecommendationsPackage();
 
         if (TextUtils.equals(oldPackageName, packageName)) {
@@ -250,8 +246,7 @@
      * is no longer valid then {@link Settings.Global#NETWORK_RECOMMENDATIONS_ENABLED} will be set
      * to <code>0</code> (disabled).
      */
-    @VisibleForTesting
-    public void updateState() {
+    void updateState() {
         final int enabledSetting = getNetworkRecommendationsEnabledSetting();
         if (enabledSetting == NetworkScoreManager.RECOMMENDATIONS_ENABLED_FORCED_OFF) {
             // Don't change anything if it's forced off.
@@ -286,6 +281,56 @@
         }
     }
 
+    /**
+     * Migrates the NETWORK_SCORER_APP Setting to the USE_OPEN_WIFI_PACKAGE Setting.
+     */
+    void migrateNetworkScorerAppSettingIfNeeded() {
+        final String scorerAppPkgNameSetting =
+                mSettingsFacade.getString(mContext, Settings.Global.NETWORK_SCORER_APP);
+        if (TextUtils.isEmpty(scorerAppPkgNameSetting)) {
+            // Early exit, nothing to do.
+            return;
+        }
+
+        final NetworkScorerAppData currentAppData = getActiveScorer();
+        if (currentAppData == null) {
+            // Don't touch anything until we have an active scorer to work with.
+            return;
+        }
+
+        if (DEBUG) {
+            Log.d(TAG, "Migrating Settings.Global.NETWORK_SCORER_APP "
+                    + "(" + scorerAppPkgNameSetting + ")...");
+        }
+
+        // If the new (useOpenWifi) Setting isn't set and the old Setting's value matches the
+        // new metadata value then update the new Setting with the old value. Otherwise it's a
+        // mismatch so we shouldn't enable the Setting automatically.
+        final ComponentName enableUseOpenWifiActivity =
+                currentAppData.getEnableUseOpenWifiActivity();
+        final String useOpenWifiSetting =
+                mSettingsFacade.getString(mContext, Settings.Global.USE_OPEN_WIFI_PACKAGE);
+        if (TextUtils.isEmpty(useOpenWifiSetting)
+                && enableUseOpenWifiActivity != null
+                && scorerAppPkgNameSetting.equals(enableUseOpenWifiActivity.getPackageName())) {
+            mSettingsFacade.putString(mContext, Settings.Global.USE_OPEN_WIFI_PACKAGE,
+                    scorerAppPkgNameSetting);
+            if (DEBUG) {
+                Log.d(TAG, "Settings.Global.USE_OPEN_WIFI_PACKAGE set to "
+                        + "'" + scorerAppPkgNameSetting + "'.");
+            }
+        }
+
+        // Clear out the old setting so we don't run through the migration code again.
+        mSettingsFacade.putString(mContext, Settings.Global.NETWORK_SCORER_APP, null);
+        if (DEBUG) {
+            Log.d(TAG, "Settings.Global.NETWORK_SCORER_APP migration complete.");
+            final String setting =
+                    mSettingsFacade.getString(mContext, Settings.Global.USE_OPEN_WIFI_PACKAGE);
+            Log.d(TAG, "Settings.Global.USE_OPEN_WIFI_PACKAGE is: '" + setting + "'.");
+        }
+    }
+
     private String getDefaultPackageSetting() {
         return mContext.getResources().getString(
                 R.string.config_defaultNetworkRecommendationProviderPackage);
diff --git a/services/core/java/com/android/server/ThreadPriorityBooster.java b/services/core/java/com/android/server/ThreadPriorityBooster.java
new file mode 100644
index 0000000..17965d0
--- /dev/null
+++ b/services/core/java/com/android/server/ThreadPriorityBooster.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server;
+
+import android.os.Process;
+
+/**
+ * Utility class to boost threads in sections where important locks are held.
+ */
+public class ThreadPriorityBooster {
+
+    private final int mBoostToPriority;
+    private final int mLockGuardIndex;
+
+    private final ThreadLocal<PriorityState> mThreadState = new ThreadLocal<PriorityState>() {
+        @Override protected PriorityState initialValue() {
+            return new PriorityState();
+        }
+    };
+
+    public ThreadPriorityBooster(int boostToPriority, int lockGuardIndex) {
+        mBoostToPriority = boostToPriority;
+        mLockGuardIndex = lockGuardIndex;
+    }
+
+    public void boost() {
+        final int tid = Process.myTid();
+        final int prevPriority = Process.getThreadPriority(tid);
+        PriorityState state = mThreadState.get();
+        if (state.regionCounter == 0 && prevPriority > mBoostToPriority) {
+            state.prevPriority = prevPriority;
+            Process.setThreadPriority(tid, mBoostToPriority);
+        }
+        state.regionCounter++;
+        if (LockGuard.ENABLED) {
+            LockGuard.guard(mLockGuardIndex);
+        }
+    }
+
+    public void reset() {
+        PriorityState state = mThreadState.get();
+        state.regionCounter--;
+        if (state.regionCounter == 0 && state.prevPriority > mBoostToPriority) {
+            Process.setThreadPriority(Process.myTid(), state.prevPriority);
+        }
+    }
+
+    private static class PriorityState {
+
+        /**
+         * Acts as counter for number of synchronized region that needs to acquire 'this' as a lock
+         * the current thread is currently in. When it drops down to zero, we will no longer boost
+         * the thread's priority.
+         */
+        int regionCounter;
+
+        /**
+         * The thread's previous priority before boosting.
+         */
+        int prevPriority;
+    }
+}
\ No newline at end of file
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index d996ee2..e560d32 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -123,7 +123,6 @@
 import java.util.Set;
 import java.util.UUID;
 import java.util.concurrent.CopyOnWriteArrayList;
-import java.util.concurrent.atomic.AtomicInteger;
 import java.util.concurrent.atomic.AtomicReference;
 
 /**
@@ -191,17 +190,14 @@
     }
 
     private final LinkedHashMap<String, Session> mSessions = new LinkedHashMap<String, Session>();
-    private final AtomicInteger mNotificationIds =
-            new AtomicInteger(SystemMessage.ACCOUNT_MANAGER_BASE);
 
     static class UserAccounts {
         private final int userId;
         final AccountsDb accountsDb;
-        private final HashMap<Pair<Pair<Account, String>, Integer>, Integer>
-                credentialsPermissionNotificationIds =
-                new HashMap<Pair<Pair<Account, String>, Integer>, Integer>();
-        private final HashMap<Account, Integer> signinRequiredNotificationIds =
-                new HashMap<Account, Integer>();
+        private final HashMap<Pair<Pair<Account, String>, Integer>, NotificationId>
+                credentialsPermissionNotificationIds = new HashMap<>();
+        private final HashMap<Account, NotificationId> signinRequiredNotificationIds
+                = new HashMap<>();
         final Object cacheLock = new Object();
         final Object dbLock = new Object(); // if needed, dbLock must be obtained before cacheLock
         /** protected by the {@link #cacheLock} */
@@ -1863,12 +1859,12 @@
          */
         cancelNotification(
                 getSigninRequiredNotificationId(accounts, accountToRename),
-                 new UserHandle(accounts.userId));
+                new UserHandle(accounts.userId));
         synchronized(accounts.credentialsPermissionNotificationIds) {
             for (Pair<Pair<Account, String>, Integer> pair:
                     accounts.credentialsPermissionNotificationIds.keySet()) {
                 if (accountToRename.equals(pair.first.first)) {
-                    int id = accounts.credentialsPermissionNotificationIds.get(pair);
+                    NotificationId id = accounts.credentialsPermissionNotificationIds.get(pair);
                     cancelNotification(id, new UserHandle(accounts.userId));
                 }
             }
@@ -2021,7 +2017,7 @@
             for (Pair<Pair<Account, String>, Integer> pair:
                 accounts.credentialsPermissionNotificationIds.keySet()) {
                 if (account.equals(pair.first.first)) {
-                    int id = accounts.credentialsPermissionNotificationIds.get(pair);
+                    NotificationId id = accounts.credentialsPermissionNotificationIds.get(pair);
                     cancelNotification(id, user);
                 }
             }
@@ -2912,8 +2908,8 @@
             // the intent from a non-Activity context. This is the default behavior.
             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         }
-        intent.addCategory(String.valueOf(getCredentialPermissionNotificationId(account,
-                authTokenType, uid) + (packageName != null ? packageName : "")));
+        intent.addCategory(getCredentialPermissionNotificationId(account,
+                authTokenType, uid).mTag + (packageName != null ? packageName : ""));
         intent.putExtra(GrantCredentialsPermissionActivity.EXTRAS_ACCOUNT, account);
         intent.putExtra(GrantCredentialsPermissionActivity.EXTRAS_AUTH_TOKEN_TYPE, authTokenType);
         intent.putExtra(GrantCredentialsPermissionActivity.EXTRAS_RESPONSE, response);
@@ -2922,33 +2918,39 @@
         return intent;
     }
 
-    private Integer getCredentialPermissionNotificationId(Account account, String authTokenType,
-            int uid) {
-        Integer id;
+    private NotificationId getCredentialPermissionNotificationId(Account account,
+            String authTokenType, int uid) {
+        NotificationId nId;
         UserAccounts accounts = getUserAccounts(UserHandle.getUserId(uid));
         synchronized (accounts.credentialsPermissionNotificationIds) {
             final Pair<Pair<Account, String>, Integer> key =
                     new Pair<Pair<Account, String>, Integer>(
                             new Pair<Account, String>(account, authTokenType), uid);
-            id = accounts.credentialsPermissionNotificationIds.get(key);
-            if (id == null) {
-                id = mNotificationIds.incrementAndGet();
-                accounts.credentialsPermissionNotificationIds.put(key, id);
+            nId = accounts.credentialsPermissionNotificationIds.get(key);
+            if (nId == null) {
+                String tag = TAG + ":" + SystemMessage.NOTE_ACCOUNT_CREDENTIAL_PERMISSION
+                        + ":" + account.hashCode() + ":" + authTokenType.hashCode();
+                int id = SystemMessage.NOTE_ACCOUNT_CREDENTIAL_PERMISSION;
+                nId = new NotificationId(tag, id);
+                accounts.credentialsPermissionNotificationIds.put(key, nId);
             }
         }
-        return id;
+        return nId;
     }
 
-    private Integer getSigninRequiredNotificationId(UserAccounts accounts, Account account) {
-        Integer id;
+    private NotificationId getSigninRequiredNotificationId(UserAccounts accounts, Account account) {
+        NotificationId nId;
         synchronized (accounts.signinRequiredNotificationIds) {
-            id = accounts.signinRequiredNotificationIds.get(account);
-            if (id == null) {
-                id = mNotificationIds.incrementAndGet();
-                accounts.signinRequiredNotificationIds.put(account, id);
+            nId = accounts.signinRequiredNotificationIds.get(account);
+            if (nId == null) {
+                String tag = TAG + ":" + SystemMessage.NOTE_ACCOUNT_REQUIRE_SIGNIN
+                        + ":" + account.hashCode();
+                int id = SystemMessage.NOTE_ACCOUNT_REQUIRE_SIGNIN;
+                nId = new NotificationId(tag, id);
+                accounts.signinRequiredNotificationIds.put(account, nId);
             }
         }
-        return id;
+        return nId;
     }
 
     @Override
@@ -4931,8 +4933,8 @@
                 createNoCredentialsPermissionNotification(account, intent, packageName, userId);
             } else {
                 Context contextForUser = getContextForUser(new UserHandle(userId));
-                final Integer notificationId = getSigninRequiredNotificationId(accounts, account);
-                intent.addCategory(String.valueOf(notificationId));
+                final NotificationId id = getSigninRequiredNotificationId(accounts, account);
+                intent.addCategory(id.mTag);
 
                 final String notificationTitleFormat =
                         contextForUser.getText(R.string.notification_title).toString();
@@ -4948,21 +4950,21 @@
                                 mContext, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT,
                                 null, new UserHandle(userId)))
                         .build();
-                installNotification(notificationId, n, packageName, userId);
+                installNotification(id, n, packageName, userId);
             }
         } finally {
             restoreCallingIdentity(identityToken);
         }
     }
 
-    private void installNotification(int notificationId, final Notification notification,
+    private void installNotification(NotificationId id, final Notification notification,
             String packageName, int userId) {
         final long token = clearCallingIdentity();
         try {
             INotificationManager notificationManager = mInjector.getNotificationManager();
             try {
-                notificationManager.enqueueNotificationWithTag(packageName, packageName, null,
-                        notificationId, notification, new int[1], userId);
+                notificationManager.enqueueNotificationWithTag(packageName, packageName,
+                        id.mTag, id.mId, notification, new int[1], userId);
             } catch (RemoteException e) {
                 /* ignore - local call */
             }
@@ -4971,15 +4973,15 @@
         }
     }
 
-    private void cancelNotification(int id, UserHandle user) {
+    private void cancelNotification(NotificationId id, UserHandle user) {
         cancelNotification(id, mContext.getPackageName(), user);
     }
 
-    private void cancelNotification(int id, String packageName, UserHandle user) {
+    private void cancelNotification(NotificationId id, String packageName, UserHandle user) {
         long identityToken = clearCallingIdentity();
         try {
             INotificationManager service = mInjector.getNotificationManager();
-            service.cancelNotificationWithTag(packageName, null, id, user.getIdentifier());
+            service.cancelNotificationWithTag(packageName, id.mTag, id.mId, user.getIdentifier());
         } catch (RemoteException e) {
             /* ignore - local call */
         } finally {
@@ -5893,4 +5895,14 @@
             return NotificationManager.getService();
         }
     }
+
+    private class NotificationId {
+        final String mTag;
+        private final int mId;
+
+        NotificationId(String tag, int type) {
+            mTag = tag;
+            mId = type;
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 4c747a1..19fc2b8 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -17,12 +17,12 @@
 package com.android.server.am;
 
 import static android.Manifest.permission.CHANGE_CONFIGURATION;
+import static android.Manifest.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST;
 import static android.Manifest.permission.INTERACT_ACROSS_USERS;
 import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
 import static android.Manifest.permission.MANAGE_ACTIVITY_STACKS;
 import static android.Manifest.permission.READ_FRAME_BUFFER;
 import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
-import static android.Manifest.permission.CHANGE_DEVICE_IDLE_TEMP_WHITELIST;
 import static android.app.ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT;
 import static android.app.ActivityManager.RESIZE_MODE_PRESERVE_WINDOW;
 import static android.app.ActivityManager.StackId.DOCKED_STACK_ID;
@@ -42,13 +42,49 @@
 import static android.content.pm.PackageManager.MATCH_UNINSTALLED_PACKAGES;
 import static android.content.pm.PackageManager.PERMISSION_GRANTED;
 import static android.content.res.Configuration.UI_MODE_TYPE_TELEVISION;
+import static android.net.NetworkPolicyManager.isProcStateAllowedWhileIdleOrPowerSaveMode;
+import static android.net.NetworkPolicyManager.isProcStateAllowedWhileOnRestrictBackground;
 import static android.os.Build.VERSION_CODES.N;
+import static android.os.Process.BLUETOOTH_UID;
+import static android.os.Process.FIRST_APPLICATION_UID;
+import static android.os.Process.FIRST_ISOLATED_UID;
+import static android.os.Process.LAST_ISOLATED_UID;
+import static android.os.Process.NFC_UID;
+import static android.os.Process.PHONE_UID;
 import static android.os.Process.PROC_CHAR;
 import static android.os.Process.PROC_OUT_LONG;
 import static android.os.Process.PROC_PARENS;
 import static android.os.Process.PROC_SPACE_TERM;
-import static android.net.NetworkPolicyManager.isProcStateAllowedWhileIdleOrPowerSaveMode;
-import static android.net.NetworkPolicyManager.isProcStateAllowedWhileOnRestrictBackground;
+import static android.os.Process.ProcessStartResult;
+import static android.os.Process.ROOT_UID;
+import static android.os.Process.SCHED_FIFO;
+import static android.os.Process.SCHED_OTHER;
+import static android.os.Process.SCHED_RESET_ON_FORK;
+import static android.os.Process.SHELL_UID;
+import static android.os.Process.SIGNAL_QUIT;
+import static android.os.Process.SIGNAL_USR1;
+import static android.os.Process.SYSTEM_UID;
+import static android.os.Process.THREAD_GROUP_BG_NONINTERACTIVE;
+import static android.os.Process.THREAD_GROUP_DEFAULT;
+import static android.os.Process.THREAD_GROUP_TOP_APP;
+import static android.os.Process.THREAD_PRIORITY_BACKGROUND;
+import static android.os.Process.THREAD_PRIORITY_FOREGROUND;
+import static android.os.Process.getFreeMemory;
+import static android.os.Process.getThreadPriority;
+import static android.os.Process.getTotalMemory;
+import static android.os.Process.isThreadInProcess;
+import static android.os.Process.killProcess;
+import static android.os.Process.killProcessQuiet;
+import static android.os.Process.myPid;
+import static android.os.Process.myUid;
+import static android.os.Process.readProcFile;
+import static android.os.Process.removeAllProcessGroups;
+import static android.os.Process.sendSignal;
+import static android.os.Process.setProcessGroup;
+import static android.os.Process.setThreadPriority;
+import static android.os.Process.setThreadScheduler;
+import static android.os.Process.startWebView;
+import static android.os.Process.zygoteProcess;
 import static android.provider.Settings.Global.ALWAYS_FINISH_ACTIVITIES;
 import static android.provider.Settings.Global.DEBUG_APP;
 import static android.provider.Settings.Global.DEVELOPMENT_ENABLE_FREEFORM_WINDOWS_SUPPORT;
@@ -323,7 +359,6 @@
 import android.view.View;
 import android.view.WindowManager;
 
-import com.android.internal.notification.SystemNotificationChannels;
 import com.google.android.collect.Lists;
 import com.google.android.collect.Maps;
 
@@ -341,6 +376,7 @@
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.internal.messages.nano.SystemMessageProto.SystemMessage;
+import com.android.internal.notification.SystemNotificationChannels;
 import com.android.internal.os.BackgroundThread;
 import com.android.internal.os.BatteryStatsImpl;
 import com.android.internal.os.IResultReceiver;
@@ -367,6 +403,7 @@
 import com.android.server.SystemConfig;
 import com.android.server.SystemService;
 import com.android.server.SystemServiceManager;
+import com.android.server.ThreadPriorityBooster;
 import com.android.server.Watchdog;
 import com.android.server.am.ActivityStack.ActivityState;
 import com.android.server.firewall.IntentFirewall;
@@ -409,7 +446,6 @@
 import java.util.concurrent.atomic.AtomicLong;
 
 import dalvik.system.VMRuntime;
-
 import libcore.io.IoUtils;
 import libcore.util.EmptyArray;
 
@@ -547,7 +583,7 @@
     // Maximum number of persisted Uri grants a package is allowed
     static final int MAX_PERSISTED_URI_GRANTS = 128;
 
-    static final int MY_PID = Process.myPid();
+    static final int MY_PID = myPid();
 
     static final String[] EMPTY_STRING_ARRAY = new String[0];
 
@@ -680,13 +716,13 @@
                     if (mTopAppVrThreadTid > 0) {
                         // Ensure that when entering persistent VR mode the last top-app loses
                         // SCHED_FIFO.
-                        Process.setThreadScheduler(mTopAppVrThreadTid, Process.SCHED_OTHER, 0);
+                        setThreadScheduler(mTopAppVrThreadTid, SCHED_OTHER, 0);
                         mTopAppVrThreadTid = 0;
                     }
                 } else if (mPersistentVrThreadTid > 0) {
                     // Ensure that when leaving persistent VR mode we reschedule the high priority
                     // persistent thread.
-                    Process.setThreadScheduler(mPersistentVrThreadTid, Process.SCHED_OTHER, 0);
+                    setThreadScheduler(mPersistentVrThreadTid, SCHED_OTHER, 0);
                     mPersistentVrThreadTid = 0;
                 }
             }
@@ -773,42 +809,15 @@
                 && !mKeyguardController.isKeyguardShowing();
     }
 
-    private static final class PriorityState {
-        // Acts as counter for number of synchronized region that needs to acquire 'this' as a lock
-        // the current thread is currently in. When it drops down to zero, we will no longer boost
-        // the thread's priority.
-        private int regionCounter = 0;
-
-        // The thread's previous priority before boosting.
-        private int prevPriority = Integer.MIN_VALUE;
-    }
-
-    static ThreadLocal<PriorityState> sThreadPriorityState = new ThreadLocal<PriorityState>() {
-        @Override protected PriorityState initialValue() {
-            return new PriorityState();
-        }
-    };
+    private static ThreadPriorityBooster sThreadPriorityBooster = new ThreadPriorityBooster(
+            THREAD_PRIORITY_FOREGROUND, LockGuard.INDEX_ACTIVITY);
 
     static void boostPriorityForLockedSection() {
-        int tid = Process.myTid();
-        int prevPriority = Process.getThreadPriority(tid);
-        PriorityState state = sThreadPriorityState.get();
-        if (state.regionCounter == 0 && prevPriority > -2) {
-            state.prevPriority = prevPriority;
-            Process.setThreadPriority(tid, -2);
-        }
-        state.regionCounter++;
-        if (LockGuard.ENABLED) {
-            LockGuard.guard(LockGuard.INDEX_ACTIVITY);
-        }
+        sThreadPriorityBooster.boost();
     }
 
     static void resetPriorityAfterLockedSection() {
-        PriorityState state = sThreadPriorityState.get();
-        state.regionCounter--;
-        if (state.regionCounter == 0 && state.prevPriority > -2) {
-            Process.setThreadPriority(Process.myTid(), state.prevPriority);
-        }
+        sThreadPriorityBooster.reset();
     }
 
     public class PendingAssistExtras extends Binder implements Runnable {
@@ -889,7 +898,7 @@
      * Non-persistent app uid whitelist for background restrictions
      */
     int[] mBackgroundUidWhitelist = new int[] {
-            Process.BLUETOOTH_UID
+            BLUETOOTH_UID
     };
 
     /**
@@ -2467,12 +2476,12 @@
                                 if (proc.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) {
                                     try {
                                         if (mVrState == VR_MODE) {
-                                            Process.setThreadScheduler(proc.vrThreadTid,
-                                                Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                                            setThreadScheduler(proc.vrThreadTid,
+                                                SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
                                             mTopAppVrThreadTid = proc.vrThreadTid;
                                         } else {
-                                            Process.setThreadScheduler(proc.vrThreadTid,
-                                                Process.SCHED_OTHER, 0);
+                                            setThreadScheduler(proc.vrThreadTid,
+                                                SCHED_OTHER, 0);
                                             mTopAppVrThreadTid = 0;
                                         }
                                     } catch (IllegalArgumentException e) {
@@ -2529,7 +2538,7 @@
                     final List<ProcessCpuTracker.Stats> stats;
                     synchronized (mProcessCpuTracker) {
                         stats = mProcessCpuTracker.getStats( (st)-> {
-                            return st.vsize > 0 && st.uid < Process.FIRST_APPLICATION_UID;
+                            return st.vsize > 0 && st.uid < FIRST_APPLICATION_UID;
                         });
                     }
                     final int N = stats.size();
@@ -2780,7 +2789,7 @@
                 com.android.internal.R.bool.config_permissionReviewRequired);
 
         mHandlerThread = new ServiceThread(TAG,
-                android.os.Process.THREAD_PRIORITY_FOREGROUND, false /*allowIo*/);
+                THREAD_PRIORITY_FOREGROUND, false /*allowIo*/);
         mHandlerThread.start();
         mHandler = new MainHandler(mHandlerThread.getLooper());
         mUiHandler = mInjector.getUiHandler(this);
@@ -2801,7 +2810,7 @@
         /* static; one-time init here */
         if (sKillHandler == null) {
             sKillThread = new ServiceThread(TAG + ":kill",
-                    android.os.Process.THREAD_PRIORITY_BACKGROUND, true /* allowIo */);
+                    THREAD_PRIORITY_BACKGROUND, true /* allowIo */);
             sKillThread.start();
             sKillHandler = new KillHandler(sKillThread.getLooper());
         }
@@ -2919,7 +2928,7 @@
     }
 
     private void start() {
-        Process.removeAllProcessGroups();
+        removeAllProcessGroups();
         mProcessCpuThread.start();
 
         mBatteryStatsService.publish(mContext);
@@ -3127,7 +3136,7 @@
         synchronized (this) {
             broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
                     AppOpsManager.OP_NONE, null, false, false,
-                    -1, Process.SYSTEM_UID, UserHandle.USER_ALL);
+                    -1, SYSTEM_UID, UserHandle.USER_ALL);
         }
     }
 
@@ -3399,7 +3408,7 @@
         if (lrui >= 0) {
             if (!app.killed) {
                 Slog.wtfStack(TAG, "Removing process that hasn't been killed: " + app);
-                Process.killProcessQuiet(app.pid);
+                killProcessQuiet(app.pid);
                 killProcessGroup(app.uid, app.pid);
             }
             if (lrui <= mLruProcessActivityStart) {
@@ -3608,7 +3617,7 @@
     }
 
     final ProcessRecord getProcessRecordLocked(String processName, int uid, boolean keepIfLarge) {
-        if (uid == Process.SYSTEM_UID) {
+        if (uid == SYSTEM_UID) {
             // The system gets to run in any process.  If there are multiple
             // processes with the same uid, just pick the first (this
             // should never happen).
@@ -3674,7 +3683,7 @@
             // closest thing to a parent's uid is SYSTEM_UID.
             // The only important thing here is to keep AI.uid != PR.uid, in order to trigger
             // the |isolated| logic in the ProcessRecord constructor.
-            info.uid = Process.SYSTEM_UID;
+            info.uid = SYSTEM_UID;
             info.processName = processName;
             info.className = entryPoint;
             info.packageName = "android";
@@ -3969,9 +3978,9 @@
             Trace.traceBegin(Trace.TRACE_TAG_ACTIVITY_MANAGER, "Start proc: " +
                     app.processName);
             checkTime(startTime, "startProcess: asking zygote to start proc");
-            Process.ProcessStartResult startResult;
+            ProcessStartResult startResult;
             if (hostingType.equals("webview_service")) {
-                startResult = Process.startWebView(entryPoint,
+                startResult = startWebView(entryPoint,
                         app.processName, uid, uid, gids, debugFlags, mountExternal,
                         app.info.targetSdkVersion, seInfo, requiredAbi, instructionSet,
                         app.info.dataDir, null, entryPointArgs);
@@ -4208,7 +4217,7 @@
     }
 
     void enforceShellRestriction(String restriction, int userHandle) {
-        if (Binder.getCallingUid() == Process.SHELL_UID) {
+        if (Binder.getCallingUid() == SHELL_UID) {
             if (userHandle < 0 || mUserController.hasUserRestriction(restriction, userHandle)) {
                 throw new SecurityException("Shell does not have permission to access user "
                         + userHandle);
@@ -4574,7 +4583,7 @@
             if (sourceRecord.app == null) {
                 throw new SecurityException("Called without a process attached to activity");
             }
-            if (UserHandle.getAppId(sourceRecord.app.uid) != Process.SYSTEM_UID) {
+            if (UserHandle.getAppId(sourceRecord.app.uid) != SYSTEM_UID) {
                 // This is still okay, as long as this activity is running under the
                 // uid of the original calling activity.
                 if (sourceRecord.app.uid != sourceRecord.launchedFromUid) {
@@ -5426,7 +5435,7 @@
 
         if (!app.killed) {
             if (!fromBinderDied) {
-                Process.killProcessQuiet(pid);
+                killProcessQuiet(pid);
             }
             killProcessGroup(app.uid, pid);
             app.killed = true;
@@ -5521,7 +5530,7 @@
         }
 
         public void dumpWithTimeout(int pid) {
-            Process.sendSignal(pid, Process.SIGNAL_QUIT);
+            sendSignal(pid, SIGNAL_QUIT);
             synchronized (this) {
                 try {
                     wait(TRACE_DUMP_TIMEOUT_MS); // Wait for traces file to be closed.
@@ -5776,7 +5785,7 @@
                     intent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
                     intent.putExtra(Intent.EXTRA_UID, pkgUidF);
                     intent.putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.getUserId(pkgUidF));
-                    broadcastIntentInPackage("android", Process.SYSTEM_UID, intent,
+                    broadcastIntentInPackage("android", SYSTEM_UID, intent,
                             null, null, 0, null, null, null, null, false, false, userIdF);
 
                     if (observer != null) {
@@ -5994,7 +6003,7 @@
     public void addPackageDependency(String packageName) {
         synchronized (this) {
             int callingPid = Binder.getCallingPid();
-            if (callingPid == Process.myPid()) {
+            if (callingPid == myPid()) {
                 //  Yeah, um, no.
                 return;
             }
@@ -6026,7 +6035,7 @@
         }
         int callerUid = Binder.getCallingUid();
         // Only the system server can kill an application
-        if (UserHandle.getAppId(callerUid) == Process.SYSTEM_UID) {
+        if (UserHandle.getAppId(callerUid) == SYSTEM_UID) {
             // Post an aysnc message to kill the application
             Message msg = mHandler.obtainMessage(KILL_APPLICATION_MSG);
             msg.arg1 = appId;
@@ -6053,7 +6062,7 @@
             synchronized (this) {
                 // Only allow this from foreground processes, so that background
                 // applications can't abuse it to prevent system UI from being shown.
-                if (uid >= Process.FIRST_APPLICATION_UID) {
+                if (uid >= FIRST_APPLICATION_UID) {
                     ProcessRecord proc;
                     synchronized (mPidsSelfLocked) {
                         proc = mPidsSelfLocked.get(pid);
@@ -6084,7 +6093,7 @@
 
         broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
                 AppOpsManager.OP_NONE, null, false, false,
-                -1, Process.SYSTEM_UID, UserHandle.USER_ALL);
+                -1, SYSTEM_UID, UserHandle.USER_ALL);
     }
 
     @Override
@@ -6150,7 +6159,7 @@
 
         int callerUid = Binder.getCallingUid();
         // Only the system server can kill an application
-        if (callerUid == Process.SYSTEM_UID) {
+        if (callerUid == SYSTEM_UID) {
             synchronized (this) {
                 ProcessRecord app = getProcessRecordLocked(processName, uid, true);
                 if (app != null && app.thread != null) {
@@ -6186,7 +6195,7 @@
         intent.putExtra(Intent.EXTRA_USER_HANDLE, UserHandle.getUserId(uid));
         broadcastIntentLocked(null, null, intent,
                 null, null, 0, null, null, null, AppOpsManager.OP_NONE,
-                null, false, false, MY_PID, Process.SYSTEM_UID, UserHandle.getUserId(uid));
+                null, false, false, MY_PID, SYSTEM_UID, UserHandle.getUserId(uid));
     }
 
 
@@ -6703,7 +6712,7 @@
                     + " (IApplicationThread " + thread + "); dropping process");
             EventLog.writeEvent(EventLogTags.AM_DROP_PROCESS, pid);
             if (pid > 0 && pid != MY_PID) {
-                Process.killProcessQuiet(pid);
+                killProcessQuiet(pid);
                 //TODO: killProcessGroup(app.info.uid, pid);
             } else {
                 try {
@@ -6811,7 +6820,7 @@
             // If the app is being launched for restore or full backup, set it up specially
             boolean isRestrictedBackupMode = false;
             if (mBackupTarget != null && mBackupAppName.equals(processName)) {
-                isRestrictedBackupMode = mBackupTarget.appInfo.uid >= Process.FIRST_APPLICATION_UID
+                isRestrictedBackupMode = mBackupTarget.appInfo.uid >= FIRST_APPLICATION_UID
                         && ((mBackupTarget.backupMode == BackupRecord.RESTORE)
                                 || (mBackupTarget.backupMode == BackupRecord.RESTORE_FULL)
                                 || (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL));
@@ -7034,7 +7043,7 @@
 
     @Override
     public void showBootMessage(final CharSequence msg, final boolean always) {
-        if (Binder.getCallingUid() != Process.myUid()) {
+        if (Binder.getCallingUid() != myUid()) {
             throw new SecurityException();
         }
         mWindowManager.showBootMessage(msg, always);
@@ -7071,7 +7080,7 @@
 
         ArraySet<String> completedIsas = new ArraySet<String>();
         for (String abi : Build.SUPPORTED_ABIS) {
-            Process.zygoteProcess.establishZygoteConnectionForAbi(abi);
+            zygoteProcess.establishZygoteConnectionForAbi(abi);
             final String instructionSet = VMRuntime.getInstructionSet(abi);
             if (!completedIsas.contains(instructionSet)) {
                 try {
@@ -7412,7 +7421,7 @@
                 userId = UserHandle.USER_CURRENT;
             }
             try {
-                if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
+                if (callingUid != 0 && callingUid != SYSTEM_UID) {
                     final int uid = AppGlobals.getPackageManager().getPackageUid(packageName,
                             MATCH_DEBUG_TRIAGED_MISSING, UserHandle.getUserId(callingUid));
                     if (!UserHandle.isSameApp(callingUid, uid)) {
@@ -8679,7 +8688,7 @@
         // Third...  does the caller itself have permission to access
         // this uri?
         final int callingAppId = UserHandle.getAppId(callingUid);
-        if ((callingAppId == Process.SYSTEM_UID) || (callingAppId == Process.ROOT_UID)) {
+        if ((callingAppId == SYSTEM_UID) || (callingAppId == ROOT_UID)) {
             if ("com.android.settings.files".equals(grantUri.uri.getAuthority())) {
                 // Exempted authority for cropping user photos in Settings app
             } else {
@@ -9165,7 +9174,7 @@
                 throw new IllegalArgumentException("Unknown owner: " + token);
             }
             if (fromUid != Binder.getCallingUid()) {
-                if (Binder.getCallingUid() != Process.myUid()) {
+                if (Binder.getCallingUid() != myUid()) {
                     // Only system code can grant URI permissions on behalf
                     // of other users.
                     throw new SecurityException("nice try");
@@ -9549,8 +9558,8 @@
     public void getMemoryInfo(ActivityManager.MemoryInfo outInfo) {
         final long homeAppMem = mProcessList.getMemLevel(ProcessList.HOME_APP_ADJ);
         final long cachedAppMem = mProcessList.getMemLevel(ProcessList.CACHED_APP_MIN_ADJ);
-        outInfo.availMem = Process.getFreeMemory();
-        outInfo.totalMem = Process.getTotalMemory();
+        outInfo.availMem = getFreeMemory();
+        outInfo.totalMem = getTotalMemory();
         outInfo.threshold = homeAppMem;
         outInfo.lowMemory = outInfo.availMem < (homeAppMem + ((cachedAppMem-homeAppMem)/2));
         outInfo.hiddenAppThreshold = cachedAppMem;
@@ -10693,7 +10702,7 @@
     @Override
     public void updateDeviceOwner(String packageName) {
         final int callingUid = Binder.getCallingUid();
-        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
+        if (callingUid != 0 && callingUid != SYSTEM_UID) {
             throw new SecurityException("updateDeviceOwner called from non-system process");
         }
         synchronized (this) {
@@ -10704,7 +10713,7 @@
     @Override
     public void updateLockTaskPackages(int userId, String[] packages) {
         final int callingUid = Binder.getCallingUid();
-        if (callingUid != 0 && callingUid != Process.SYSTEM_UID) {
+        if (callingUid != 0 && callingUid != SYSTEM_UID) {
             enforceCallingPermission(android.Manifest.permission.UPDATE_LOCK_TASK_PACKAGES,
                     "updateLockTaskPackages()");
         }
@@ -10727,7 +10736,7 @@
         // is initiated by system after the pinning request was shown and locked mode is initiated
         // by an authorized app directly
         final int callingUid = Binder.getCallingUid();
-        boolean isSystemInitiated = callingUid == Process.SYSTEM_UID;
+        boolean isSystemInitiated = callingUid == SYSTEM_UID;
         long ident = Binder.clearCallingIdentity();
         try {
             if (!isSystemInitiated) {
@@ -11206,7 +11215,7 @@
             proc.procStatFile = "/proc/" + proc.pid + "/stat";
         }
         mProcessStateStatsLongs[0] = 0;
-        if (!Process.readProcFile(proc.procStatFile, PROCESS_STATE_STATS_FORMAT, null,
+        if (!readProcFile(proc.procStatFile, PROCESS_STATE_STATS_FORMAT, null,
                 mProcessStateStatsLongs, null)) {
             if (DEBUG_OOM_ADJ) Slog.d(TAG, "UNABLE TO RETRIEVE STATE FOR " + proc.procStatFile);
             return false;
@@ -11908,7 +11917,7 @@
     public final void installSystemProviders() {
         List<ProviderInfo> providers;
         synchronized (this) {
-            ProcessRecord app = mProcessNames.get("system", Process.SYSTEM_UID);
+            ProcessRecord app = mProcessNames.get("system", SYSTEM_UID);
             providers = generateApplicationProvidersLocked(app);
             if (providers != null) {
                 for (int i=providers.size()-1; i>=0; i--) {
@@ -12081,11 +12090,11 @@
         int uid = info.uid;
         if (isolated) {
             if (isolatedUid == 0) {
-                int stepsLeft = Process.LAST_ISOLATED_UID - Process.FIRST_ISOLATED_UID + 1;
+                int stepsLeft = LAST_ISOLATED_UID - FIRST_ISOLATED_UID + 1;
                 while (true) {
-                    if (mNextIsolatedProcessUid < Process.FIRST_ISOLATED_UID
-                            || mNextIsolatedProcessUid > Process.LAST_ISOLATED_UID) {
-                        mNextIsolatedProcessUid = Process.FIRST_ISOLATED_UID;
+                    if (mNextIsolatedProcessUid < FIRST_ISOLATED_UID
+                            || mNextIsolatedProcessUid > LAST_ISOLATED_UID) {
+                        mNextIsolatedProcessUid = FIRST_ISOLATED_UID;
                     }
                     uid = UserHandle.getUid(userId, mNextIsolatedProcessUid);
                     mNextIsolatedProcessUid++;
@@ -13274,7 +13283,7 @@
         synchronized (this) {
             // Disable any existing VR thread.
             if (mTopAppVrThreadTid > 0) {
-                Process.setThreadScheduler(mTopAppVrThreadTid, Process.SCHED_OTHER, 0);
+                setThreadScheduler(mTopAppVrThreadTid, SCHED_OTHER, 0);
                 mTopAppVrThreadTid = 0;
             }
 
@@ -13298,15 +13307,15 @@
      */
     private int updateVrThreadLocked(ProcessRecord proc, int lastTid, int pid, int tid) {
         // ensure the tid belongs to the process
-        if (!Process.isThreadInProcess(pid, tid)) {
+        if (!isThreadInProcess(pid, tid)) {
             throw new IllegalArgumentException("VR thread does not belong to process");
         }
 
         // reset existing VR thread to CFS if this thread still exists and belongs to
         // the calling process
-        if (lastTid != 0 && Process.isThreadInProcess(pid, lastTid)) {
+        if (lastTid != 0 && isThreadInProcess(pid, lastTid)) {
             try {
-                Process.setThreadScheduler(lastTid, Process.SCHED_OTHER, 0);
+                setThreadScheduler(lastTid, SCHED_OTHER, 0);
             } catch (IllegalArgumentException e) {
                 // Ignore this.  Only occurs in race condition where previous VR thread
                 // was destroyed during this method call.
@@ -13317,8 +13326,8 @@
         try {
             if ((proc == null || proc.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP)
                     && tid > 0) {
-                Process.setThreadScheduler(tid,
-                    Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                setThreadScheduler(tid,
+                    SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
             }
             return tid;
         } catch (IllegalArgumentException e) {
@@ -13337,7 +13346,7 @@
                 proc = mPidsSelfLocked.get(pid);
                 if (proc != null && proc.renderThreadTid == 0 && tid > 0) {
                     // ensure the tid belongs to the process
-                    if (!Process.isThreadInProcess(pid, tid)) {
+                    if (!isThreadInProcess(pid, tid)) {
                         throw new IllegalArgumentException(
                             "Render thread does not belong to process");
                     }
@@ -13349,10 +13358,10 @@
                     if (proc.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) {
                         if (DEBUG_OOM_ADJ) Slog.d("UI_FIFO", "Promoting " + tid + "out of band");
                         if (mUseFifoUiScheduling) {
-                            Process.setThreadScheduler(proc.renderThreadTid,
-                                Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                            setThreadScheduler(proc.renderThreadTid,
+                                SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
                         } else {
-                            Process.setThreadPriority(proc.renderThreadTid, -10);
+                            setThreadPriority(proc.renderThreadTid, -10);
                         }
                     }
                 } else {
@@ -13513,7 +13522,7 @@
                 if (sender == null) {
                     uid = sourceUid;
                 } else {
-                    uid = rec.uid == MY_UID ? Process.SYSTEM_UID : rec.uid;
+                    uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
                 }
                 BatteryStatsImpl.Uid.Pkg pkg =
                     stats.getPackageStatsLocked(sourceUid >= 0 ? sourceUid : uid,
@@ -13536,7 +13545,7 @@
             if (sender == null) {
                 uid = sourceUid;
             } else {
-                uid = rec.uid == MY_UID ? Process.SYSTEM_UID : rec.uid;
+                uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
             }
             mBatteryStatsService.noteAlarmStart(tag, sourceUid >= 0 ? sourceUid : uid);
         }
@@ -13555,14 +13564,14 @@
             if (sender == null) {
                 uid = sourceUid;
             } else {
-                uid = rec.uid == MY_UID ? Process.SYSTEM_UID : rec.uid;
+                uid = rec.uid == MY_UID ? SYSTEM_UID : rec.uid;
             }
             mBatteryStatsService.noteAlarmFinish(tag, sourceUid >= 0 ? sourceUid : uid);
         }
     }
 
     public boolean killPids(int[] pids, String pReason, boolean secure) {
-        if (Binder.getCallingUid() != Process.SYSTEM_UID) {
+        if (Binder.getCallingUid() != SYSTEM_UID) {
             throw new SecurityException("killPids only available to the system");
         }
         String reason = (pReason == null) ? "Unknown" : pReason;
@@ -13628,7 +13637,7 @@
 
     @Override
     public boolean killProcessesBelowForeground(String reason) {
-        if (Binder.getCallingUid() != Process.SYSTEM_UID) {
+        if (Binder.getCallingUid() != SYSTEM_UID) {
             throw new SecurityException("killProcessesBelowForeground() only available to system");
         }
 
@@ -13636,7 +13645,7 @@
     }
 
     private boolean killProcessesBelowAdj(int belowAdj, String reason) {
-        if (Binder.getCallingUid() != Process.SYSTEM_UID) {
+        if (Binder.getCallingUid() != SYSTEM_UID) {
             throw new SecurityException("killProcessesBelowAdj() only available to system");
         }
 
@@ -13713,7 +13722,7 @@
                 Log.i(TAG, "Shutting down activity manager...");
                 shutdown(10000);
                 Log.i(TAG, "Shutdown complete, restarting!");
-                Process.killProcess(Process.myPid());
+                killProcess(myPid());
                 System.exit(10);
             }
         };
@@ -14057,7 +14066,7 @@
                 intent.putExtra(Intent.EXTRA_USER_HANDLE, currentUserId);
                 broadcastIntentLocked(null, null, intent,
                         null, null, 0, null, null, null, AppOpsManager.OP_NONE,
-                        null, false, false, MY_PID, Process.SYSTEM_UID,
+                        null, false, false, MY_PID, SYSTEM_UID,
                         currentUserId);
                 intent = new Intent(Intent.ACTION_USER_STARTING);
                 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
@@ -14071,7 +14080,7 @@
                             }
                         }, 0, null, null,
                         new String[] {INTERACT_ACROSS_USERS}, AppOpsManager.OP_NONE,
-                        null, true, false, MY_PID, Process.SYSTEM_UID, UserHandle.USER_ALL);
+                        null, true, false, MY_PID, SYSTEM_UID, UserHandle.USER_ALL);
             } catch (Throwable t) {
                 Slog.wtf(TAG, "Failed sending first user broadcasts", t);
             } finally {
@@ -16716,22 +16725,22 @@
     private final long[] getKsmInfo() {
         long[] longOut = new long[4];
         final int[] SINGLE_LONG_FORMAT = new int[] {
-            Process.PROC_SPACE_TERM|Process.PROC_OUT_LONG
+            PROC_SPACE_TERM| PROC_OUT_LONG
         };
         long[] longTmp = new long[1];
-        Process.readProcFile("/sys/kernel/mm/ksm/pages_shared",
+        readProcFile("/sys/kernel/mm/ksm/pages_shared",
                 SINGLE_LONG_FORMAT, null, longTmp, null);
         longOut[KSM_SHARED] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
         longTmp[0] = 0;
-        Process.readProcFile("/sys/kernel/mm/ksm/pages_sharing",
+        readProcFile("/sys/kernel/mm/ksm/pages_sharing",
                 SINGLE_LONG_FORMAT, null, longTmp, null);
         longOut[KSM_SHARING] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
         longTmp[0] = 0;
-        Process.readProcFile("/sys/kernel/mm/ksm/pages_unshared",
+        readProcFile("/sys/kernel/mm/ksm/pages_unshared",
                 SINGLE_LONG_FORMAT, null, longTmp, null);
         longOut[KSM_UNSHARED] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
         longTmp[0] = 0;
-        Process.readProcFile("/sys/kernel/mm/ksm/pages_volatile",
+        readProcFile("/sys/kernel/mm/ksm/pages_volatile",
                 SINGLE_LONG_FORMAT, null, longTmp, null);
         longOut[KSM_VOLATILE] = longTmp[0] * ProcessList.PAGE_SIZE / 1024;
         return longOut;
@@ -18007,7 +18016,7 @@
             String className, int flags) {
         boolean result = false;
         // For apps that don't have pre-defined UIDs, check for permission
-        if (UserHandle.getAppId(aInfo.uid) >= Process.FIRST_APPLICATION_UID) {
+        if (UserHandle.getAppId(aInfo.uid) >= FIRST_APPLICATION_UID) {
             if ((flags & ServiceInfo.FLAG_SINGLE_USER) != 0) {
                 if (ActivityManager.checkUidPermission(
                         INTERACT_ACROSS_USERS,
@@ -18026,7 +18035,7 @@
             result = true;
         } else if ((flags & ServiceInfo.FLAG_SINGLE_USER) != 0) {
             // Phone app and persistent apps are allowed to export singleuser providers.
-            result = UserHandle.isSameApp(aInfo.uid, Process.PHONE_UID)
+            result = UserHandle.isSameApp(aInfo.uid, PHONE_UID)
                     || (aInfo.flags & ApplicationInfo.FLAG_PERSISTENT) != 0;
         }
         if (DEBUG_MU) Slog.v(TAG_MU,
@@ -18044,8 +18053,8 @@
     boolean isValidSingletonCall(int callingUid, int componentUid) {
         int componentAppId = UserHandle.getAppId(componentUid);
         return UserHandle.isSameApp(callingUid, componentUid)
-                || componentAppId == Process.SYSTEM_UID
-                || componentAppId == Process.PHONE_UID
+                || componentAppId == SYSTEM_UID
+                || componentAppId == PHONE_UID
                 || ActivityManager.checkUidPermission(INTERACT_ACROSS_USERS_FULL, componentUid)
                         == PackageManager.PERMISSION_GRANTED;
     }
@@ -18286,7 +18295,7 @@
     // =========================================================
 
     private boolean isInstantApp(ProcessRecord record, String callerPackage, int uid) {
-        if (UserHandle.getAppId(uid) < Process.FIRST_APPLICATION_UID) {
+        if (UserHandle.getAppId(uid) < FIRST_APPLICATION_UID) {
             return false;
         }
         // Easy case -- we have the app's ProcessRecord.
@@ -18347,7 +18356,7 @@
                             + " (pid=" + Binder.getCallingPid()
                             + ") when registering receiver " + receiver);
                 }
-                if (callerApp.info.uid != Process.SYSTEM_UID &&
+                if (callerApp.info.uid != SYSTEM_UID &&
                         !callerApp.pkgList.containsKey(callerPackage) &&
                         !"android".equals(callerPackage)) {
                     throw new SecurityException("Given caller package " + callerPackage
@@ -18564,7 +18573,7 @@
             for (int user : users) {
                 // Skip users that have Shell restrictions, with exception of always permitted
                 // Shell broadcasts
-                if (callingUid == Process.SHELL_UID
+                if (callingUid == SHELL_UID
                         && mUserController.hasUserRestriction(
                                 UserManager.DISALLOW_DEBUGGING_FEATURES, user)
                         && !isPermittedShellBroadcast(intent)) {
@@ -18748,7 +18757,7 @@
         // and upgrade steps.
 
         if (userId != UserHandle.USER_ALL && !mUserController.isUserRunningLocked(userId, 0)) {
-            if ((callingUid != Process.SYSTEM_UID
+            if ((callingUid != SYSTEM_UID
                     || (intent.getFlags() & Intent.FLAG_RECEIVER_BOOT_UPGRADE) == 0)
                     && !Intent.ACTION_SHUTDOWN.equals(intent.getAction())) {
                 Slog.w(TAG, "Skipping broadcast of " + intent
@@ -18792,11 +18801,11 @@
 
         final boolean isCallerSystem;
         switch (UserHandle.getAppId(callingUid)) {
-            case Process.ROOT_UID:
-            case Process.SYSTEM_UID:
-            case Process.PHONE_UID:
-            case Process.BLUETOOTH_UID:
-            case Process.NFC_UID:
+            case ROOT_UID:
+            case SYSTEM_UID:
+            case PHONE_UID:
+            case BLUETOOTH_UID:
+            case NFC_UID:
                 isCallerSystem = true;
                 break;
             default:
@@ -19172,7 +19181,7 @@
             receivers = collectReceiverComponents(intent, resolvedType, callingUid, users);
         }
         if (intent.getComponent() == null) {
-            if (userId == UserHandle.USER_ALL && callingUid == Process.SHELL_UID) {
+            if (userId == UserHandle.USER_ALL && callingUid == SHELL_UID) {
                 // Query one target user at a time, excluding shell-restricted users
                 for (int i = 0; i < users.length; i++) {
                     if (mUserController.hasUserRestriction(
@@ -19414,8 +19423,8 @@
 
         if ((flags & Intent.FLAG_RECEIVER_FROM_SHELL) != 0) {
             switch (Binder.getCallingUid()) {
-                case Process.ROOT_UID:
-                case Process.SHELL_UID:
+                case ROOT_UID:
+                case SHELL_UID:
                     break;
                 default:
                     Slog.w(TAG, "Removing FLAG_RECEIVER_FROM_SHELL because caller is UID "
@@ -19870,7 +19879,7 @@
 
     private void enforceWriteSettingsPermission(String func) {
         int uid = Binder.getCallingUid();
-        if (uid == Process.ROOT_UID) {
+        if (uid == ROOT_UID) {
             return;
         }
 
@@ -20068,7 +20077,7 @@
                 | Intent.FLAG_RECEIVER_FOREGROUND
                 | Intent.FLAG_RECEIVER_VISIBLE_TO_INSTANT_APPS);
         broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
-                AppOpsManager.OP_NONE, null, false, false, MY_PID, Process.SYSTEM_UID,
+                AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID,
                 UserHandle.USER_ALL);
         if ((changes & ActivityInfo.CONFIG_LOCALE) != 0) {
             intent = new Intent(Intent.ACTION_LOCALE_CHANGED);
@@ -20079,7 +20088,7 @@
                 intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY);
             }
             broadcastIntentLocked(null, null, intent, null, null, 0, null, null, null,
-                    AppOpsManager.OP_NONE, null, false, false, MY_PID, Process.SYSTEM_UID,
+                    AppOpsManager.OP_NONE, null, false, false, MY_PID, SYSTEM_UID,
                     UserHandle.USER_ALL);
         }
 
@@ -21553,27 +21562,27 @@
                 int processGroup;
                 switch (app.curSchedGroup) {
                     case ProcessList.SCHED_GROUP_BACKGROUND:
-                        processGroup = Process.THREAD_GROUP_BG_NONINTERACTIVE;
+                        processGroup = THREAD_GROUP_BG_NONINTERACTIVE;
                         break;
                     case ProcessList.SCHED_GROUP_TOP_APP:
                     case ProcessList.SCHED_GROUP_TOP_APP_BOUND:
-                        processGroup = Process.THREAD_GROUP_TOP_APP;
+                        processGroup = THREAD_GROUP_TOP_APP;
                         break;
                     default:
-                        processGroup = Process.THREAD_GROUP_DEFAULT;
+                        processGroup = THREAD_GROUP_DEFAULT;
                         break;
                 }
                 long oldId = Binder.clearCallingIdentity();
                 try {
-                    Process.setProcessGroup(app.pid, processGroup);
+                    setProcessGroup(app.pid, processGroup);
                     if (app.curSchedGroup == ProcessList.SCHED_GROUP_TOP_APP) {
                         // do nothing if we already switched to RT
                         if (oldSchedGroup != ProcessList.SCHED_GROUP_TOP_APP) {
                             // Switch VR thread for app to SCHED_FIFO
                             if (mVrState == VR_MODE && app.vrThreadTid != 0) {
                                 try {
-                                    Process.setThreadScheduler(app.vrThreadTid,
-                                        Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                                    setThreadScheduler(app.vrThreadTid,
+                                        SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
                                     mTopAppVrThreadTid = app.vrThreadTid;
                                 } catch (IllegalArgumentException e) {
                                     // thread died, ignore
@@ -21581,17 +21590,17 @@
                             }
                             if (mUseFifoUiScheduling) {
                                 // Switch UI pipeline for app to SCHED_FIFO
-                                app.savedPriority = Process.getThreadPriority(app.pid);
+                                app.savedPriority = getThreadPriority(app.pid);
                                 try {
-                                    Process.setThreadScheduler(app.pid,
-                                        Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                                    setThreadScheduler(app.pid,
+                                        SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
                                 } catch (IllegalArgumentException e) {
                                     // thread died, ignore
                                 }
                                 if (app.renderThreadTid != 0) {
                                     try {
-                                        Process.setThreadScheduler(app.renderThreadTid,
-                                            Process.SCHED_FIFO | Process.SCHED_RESET_ON_FORK, 1);
+                                        setThreadScheduler(app.renderThreadTid,
+                                            SCHED_FIFO | SCHED_RESET_ON_FORK, 1);
                                     } catch (IllegalArgumentException e) {
                                         // thread died, ignore
                                     }
@@ -21606,10 +21615,10 @@
                                 }
                             } else {
                                 // Boost priority for top app UI and render threads
-                                Process.setThreadPriority(app.pid, -10);
+                                setThreadPriority(app.pid, -10);
                                 if (app.renderThreadTid != 0) {
                                     try {
-                                        Process.setThreadPriority(app.renderThreadTid, -10);
+                                        setThreadPriority(app.renderThreadTid, -10);
                                     } catch (IllegalArgumentException e) {
                                         // thread died, ignore
                                     }
@@ -21621,23 +21630,23 @@
                         // Reset VR thread to SCHED_OTHER
                         // Safe to do even if we're not in VR mode
                         if (app.vrThreadTid != 0) {
-                            Process.setThreadScheduler(app.vrThreadTid, Process.SCHED_OTHER, 0);
+                            setThreadScheduler(app.vrThreadTid, SCHED_OTHER, 0);
                             mTopAppVrThreadTid = 0;
                         }
                         if (mUseFifoUiScheduling) {
                             // Reset UI pipeline to SCHED_OTHER
-                            Process.setThreadScheduler(app.pid, Process.SCHED_OTHER, 0);
-                            Process.setThreadPriority(app.pid, app.savedPriority);
+                            setThreadScheduler(app.pid, SCHED_OTHER, 0);
+                            setThreadPriority(app.pid, app.savedPriority);
                             if (app.renderThreadTid != 0) {
-                                Process.setThreadScheduler(app.renderThreadTid,
-                                    Process.SCHED_OTHER, 0);
-                                Process.setThreadPriority(app.renderThreadTid, -4);
+                                setThreadScheduler(app.renderThreadTid,
+                                    SCHED_OTHER, 0);
+                                setThreadPriority(app.renderThreadTid, -4);
                             }
                         } else {
                             // Reset priority for top app UI and render threads
-                            Process.setThreadPriority(app.pid, 0);
+                            setThreadPriority(app.pid, 0);
                             if (app.renderThreadTid != 0) {
-                                Process.setThreadPriority(app.renderThreadTid, 0);
+                                setThreadPriority(app.renderThreadTid, 0);
                             }
                         }
                     }
@@ -22747,7 +22756,7 @@
 
     /** This method sends the specified signal to each of the persistent apps */
     public void signalPersistentProcesses(int sig) throws RemoteException {
-        if (sig != Process.SIGNAL_USR1) {
+        if (sig != SIGNAL_USR1) {
             throw new SecurityException("Only SIGNAL_USR1 is allowed");
         }
 
@@ -22761,7 +22770,7 @@
             for (int i = mLruProcesses.size() - 1 ; i >= 0 ; i--) {
                 ProcessRecord r = mLruProcesses.get(i);
                 if (r.thread != null && r.persistent) {
-                    Process.sendSignal(r.pid, sig);
+                    sendSignal(r.pid, sig);
                 }
             }
         }
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index 0c2c204..c7f20b9f 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -1613,6 +1613,9 @@
             String iconFilename = null;
             int colorPrimary = 0;
             int colorBackground = 0;
+            int statusBarColor = 0;
+            int navigationBarColor = 0;
+            boolean topActivity = true;
             for (--activityNdx; activityNdx >= 0; --activityNdx) {
                 final ActivityRecord r = mActivities.get(activityNdx);
                 if (r.taskDescription != null) {
@@ -1625,13 +1628,16 @@
                     if (colorPrimary == 0) {
                         colorPrimary = r.taskDescription.getPrimaryColor();
                     }
-                    if (colorBackground == 0) {
+                    if (topActivity) {
                         colorBackground = r.taskDescription.getBackgroundColor();
+                        statusBarColor = r.taskDescription.getStatusBarColor();
+                        navigationBarColor = r.taskDescription.getNavigationBarColor();
                     }
                 }
+                topActivity = false;
             }
             lastTaskDescription = new TaskDescription(label, null, iconFilename, colorPrimary,
-                    colorBackground);
+                    colorBackground, statusBarColor, navigationBarColor);
             if (mWindowContainerController != null) {
                 mWindowContainerController.setTaskDescription(lastTaskDescription);
             }
diff --git a/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java b/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
index 5bdef9e..3705946 100644
--- a/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
+++ b/services/core/java/com/android/server/om/OverlayManagerServiceImpl.java
@@ -325,13 +325,11 @@
             // Disable all other overlays.
             allOverlays.remove(oi);
             for (int i = 0; i < allOverlays.size(); i++) {
-                mSettings.setEnabled(allOverlays.get(i).packageName, userId, false);
+                // TODO: Optimize this to only send updates after all changes.
+                setEnabled(allOverlays.get(i).packageName, false, userId);
             }
 
-            final PackageInfo targetPackage =
-                    mPackageManager.getPackageInfo(oi.targetPackageName, userId);
-            mSettings.setEnabled(packageName, userId, enable);
-            updateState(targetPackage, overlayPackage, userId);
+            setEnabled(packageName, enable, userId);
             return true;
         } catch (OverlayManagerSettings.BadKeyException e) {
             return false;
diff --git a/services/core/java/com/android/server/pm/EphemeralResolverConnection.java b/services/core/java/com/android/server/pm/EphemeralResolverConnection.java
index b0730ef..0e13f97 100644
--- a/services/core/java/com/android/server/pm/EphemeralResolverConnection.java
+++ b/services/core/java/com/android/server/pm/EphemeralResolverConnection.java
@@ -27,6 +27,7 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
+import android.os.IBinder.DeathRecipient;
 import android.os.IRemoteCallback;
 import android.os.RemoteException;
 import android.os.SystemClock;
@@ -47,7 +48,7 @@
  * service and handling all interactions in a timely manner.
  * @hide
  */
-final class EphemeralResolverConnection {
+final class EphemeralResolverConnection implements DeathRecipient {
     // This is running in a critical section and the timeout must be sufficiently low
     private static final long BIND_SERVICE_TIMEOUT_MS =
             ("eng".equals(Build.TYPE)) ? 300 : 200;
@@ -171,6 +172,15 @@
         }
     }
 
+    @Override
+    public void binderDied() {
+        if (mRemoteInstance != null) {
+            mRemoteInstance.asBinder().unlinkToDeath(this, 0 /*flags*/);
+        }
+        mRemoteInstance = null;
+        mBindRequested = false;
+    }
+
     /**
      * Asynchronous callback when results come back from ephemeral resolution phase two.
      */
@@ -183,7 +193,11 @@
         @Override
         public void onServiceConnected(ComponentName name, IBinder service) {
             synchronized (mLock) {
-                mRemoteInstance = IInstantAppResolver.Stub.asInterface(service);
+                try {
+                    service.linkToDeath(EphemeralResolverConnection.this, 0 /*flags*/);
+                    mRemoteInstance = IInstantAppResolver.Stub.asInterface(service);
+                } catch (RemoteException e) {
+                }
                 mLock.notifyAll();
             }
         }
diff --git a/services/core/java/com/android/server/pm/Installer.java b/services/core/java/com/android/server/pm/Installer.java
index 7eef7ad..9f7c4a2 100644
--- a/services/core/java/com/android/server/pm/Installer.java
+++ b/services/core/java/com/android/server/pm/Installer.java
@@ -66,6 +66,7 @@
     public static final int FLAG_FREE_CACHE_V2 = 1 << 13;
     public static final int FLAG_FREE_CACHE_V2_DEFY_QUOTA = 1 << 14;
     public static final int FLAG_FREE_CACHE_NOOP = 1 << 15;
+    public static final int FLAG_FORCE = 1 << 16;
 
     private final boolean mIsolated;
 
@@ -202,6 +203,15 @@
         }
     }
 
+    public void fixupAppData(String uuid, int flags) throws InstallerException {
+        if (!checkBeforeRemote()) return;
+        try {
+            mInstalld.fixupAppData(uuid, flags);
+        } catch (Exception e) {
+            throw InstallerException.from(e);
+        }
+    }
+
     public void moveCompleteApp(String fromUuid, String toUuid, String packageName,
             String dataAppName, int appId, String seInfo, int targetSdkVersion)
             throws InstallerException {
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index d89b12e..dec639f 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -842,11 +842,11 @@
 
     /** The service connection to the ephemeral resolver */
     final EphemeralResolverConnection mInstantAppResolverConnection;
+    /** Component used to show resolver settings for Instant Apps */
+    final ComponentName mInstantAppResolverSettingsComponent;
 
     /** Component used to install ephemeral applications */
     ComponentName mInstantAppInstallerComponent;
-    /** Component used to show resolver settings for Instant Apps */
-    ComponentName mInstantAppResolverSettingsComponent;
     ActivityInfo mInstantAppInstallerActivity;
     final ResolveInfo mInstantAppInstallerInfo = new ResolveInfo();
 
@@ -2717,6 +2717,15 @@
                     UserHandle.USER_SYSTEM, storageFlags, true /* migrateAppData */,
                     true /* onlyCoreApps */);
             mPrepareAppDataFuture = SystemServerInitThreadPool.get().submit(() -> {
+                Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "fixup");
+                try {
+                    mInstaller.fixupAppData(StorageManager.UUID_PRIVATE_INTERNAL,
+                            StorageManager.FLAG_STORAGE_DE | StorageManager.FLAG_STORAGE_CE);
+                } catch (InstallerException e) {
+                    Slog.w(TAG, "Trouble fixing GIDs", e);
+                }
+                Trace.traceEnd(TRACE_TAG_PACKAGE_MANAGER);
+
                 if (deferPackages == null || deferPackages.isEmpty()) {
                     return;
                 }
@@ -2807,11 +2816,13 @@
                 }
                 mInstantAppResolverConnection =
                         new EphemeralResolverConnection(mContext, ephemeralResolverComponent);
+                mInstantAppResolverSettingsComponent =
+                        getEphemeralResolverSettingsLPr(ephemeralResolverComponent);
             } else {
                 mInstantAppResolverConnection = null;
+                mInstantAppResolverSettingsComponent = null;
             }
             updateInstantAppInstallerLocked();
-            mInstantAppResolverSettingsComponent = getEphemeralResolverSettingsLPr();
 
             // Read and update the usage of dex files.
             // Do this at the end of PM init so that all the packages have their
@@ -3119,35 +3130,18 @@
         }
     }
 
-    private @Nullable ComponentName getEphemeralResolverSettingsLPr() {
-        final Intent intent = new Intent(Intent.ACTION_EPHEMERAL_RESOLVER_SETTINGS);
-        intent.addCategory(Intent.CATEGORY_DEFAULT);
-        final int resolveFlags =
-                MATCH_DIRECT_BOOT_AWARE
-                | MATCH_DIRECT_BOOT_UNAWARE
-                | (!Build.IS_DEBUGGABLE ? MATCH_SYSTEM_ONLY : 0);
-        final List<ResolveInfo> matches = queryIntentActivitiesInternal(intent, null,
-                resolveFlags, UserHandle.USER_SYSTEM);
-        Iterator<ResolveInfo> iter = matches.iterator();
-        while (iter.hasNext()) {
-            final ResolveInfo rInfo = iter.next();
-            final PackageSetting ps = mSettings.mPackages.get(rInfo.activityInfo.packageName);
-            if (ps != null) {
-                final PermissionsState permissionsState = ps.getPermissionsState();
-                if (permissionsState.hasPermission(Manifest.permission.ACCESS_INSTANT_APPS, 0)) {
-                    continue;
-                }
-            }
-            iter.remove();
-        }
-        if (matches.size() == 0) {
+    private @Nullable ComponentName getEphemeralResolverSettingsLPr(
+            @NonNull ComponentName resolver) {
+        final Intent intent =  new Intent(Intent.ACTION_EPHEMERAL_RESOLVER_SETTINGS)
+                .addCategory(Intent.CATEGORY_DEFAULT)
+                .setPackage(resolver.getPackageName());
+        final int resolveFlags = MATCH_DIRECT_BOOT_AWARE | MATCH_DIRECT_BOOT_UNAWARE;
+        final List<ResolveInfo> matches = queryIntentActivitiesInternal(intent, null, resolveFlags,
+                UserHandle.USER_SYSTEM);
+        if (matches.isEmpty()) {
             return null;
-        } else if (matches.size() == 1) {
-            return matches.get(0).getComponentInfo().getComponentName();
-        } else {
-            throw new RuntimeException(
-                    "There must be at most one ephemeral resolver settings; found " + matches);
         }
+        return matches.get(0).getComponentInfo().getComponentName();
     }
 
     private void primeDomainVerificationsLPw(int userId) {
@@ -16965,6 +16959,15 @@
                 return;
             }
 
+            // Shared libraries for the package need to be updated.
+            synchronized (mPackages) {
+                try {
+                    updateSharedLibrariesLPr(pkg, null);
+                } catch (PackageManagerException e) {
+                    Slog.e(TAG, "updateAllSharedLibrariesLPw failed: " + e.getMessage());
+                }
+            }
+
             Trace.traceBegin(TRACE_TAG_PACKAGE_MANAGER, "dexopt");
             // Do not run PackageDexOptimizer through the local performDexOpt
             // method because `pkg` may not be in `mPackages` yet.
@@ -17013,6 +17016,7 @@
                         args.user, installerPackageName, volumeUuid, res, args.installReason);
             }
         }
+
         synchronized (mPackages) {
             final PackageSetting ps = mSettings.mPackages.get(pkgName);
             if (ps != null) {
@@ -20858,13 +20862,6 @@
                 mSettings.dumpRestoredPermissionGrantsLPr(pw, dumpState);
             }
 
-            if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
-                // XXX should handle packageName != null by dumping only install data that
-                // the given package is involved with.
-                if (dumpState.onTitlePrinted()) pw.println();
-                mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
-            }
-
             if (!checkin && dumpState.isDumping(DumpState.DUMP_FROZEN) && packageName == null) {
                 // XXX should handle packageName != null by dumping only install data that
                 // the given package is involved with.
@@ -20935,6 +20932,14 @@
                 }
             }
         }
+
+        // PackageInstaller should be called outside of mPackages lock
+        if (!checkin && dumpState.isDumping(DumpState.DUMP_INSTALLS) && packageName == null) {
+            // XXX should handle packageName != null by dumping only install data that
+            // the given package is involved with.
+            if (dumpState.onTitlePrinted()) pw.println();
+            mInstallerService.dump(new IndentingPrintWriter(pw, "  ", 120));
+        }
     }
 
     private void dumpProto(FileDescriptor fd) {
diff --git a/services/core/java/com/android/server/pm/Settings.java b/services/core/java/com/android/server/pm/Settings.java
index 6fb056a..554deae 100644
--- a/services/core/java/com/android/server/pm/Settings.java
+++ b/services/core/java/com/android/server/pm/Settings.java
@@ -4777,7 +4777,7 @@
             pw.print(" notLaunched=");
             pw.print(ps.getNotLaunched(user.id));
             pw.print(" enabled=");
-            pw.println(ps.getEnabled(user.id));
+            pw.print(ps.getEnabled(user.id));
             pw.print(" instant=");
             pw.println(ps.getInstantApp(user.id));
             String lastDisabledAppCaller = ps.getLastDisabledAppCaller(user.id);
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index b507df0..95fb5af 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -2945,6 +2945,7 @@
                 }
                 mStatusBar = win;
                 mStatusBarController.setWindow(win);
+                setKeyguardOccludedLw(mKeyguardOccluded, true /* force */);
                 break;
             case TYPE_NAVIGATION_BAR:
                 mContext.enforceCallingOrSelfPermission(
@@ -3832,7 +3833,7 @@
             mPendingKeyguardOccluded = occluded;
             mKeyguardOccludedChanged = true;
         } else {
-            setKeyguardOccludedLw(occluded);
+            setKeyguardOccludedLw(occluded, false /* force */);
         }
     }
 
@@ -3841,7 +3842,7 @@
             if (DEBUG_KEYGUARD) Slog.d(TAG, "transition/occluded changed occluded="
                     + mPendingKeyguardOccluded);
             mKeyguardOccludedChanged = false;
-            if (setKeyguardOccludedLw(mPendingKeyguardOccluded)) {
+            if (setKeyguardOccludedLw(mPendingKeyguardOccluded, false /* force */)) {
                 return FINISH_LAYOUT_REDO_LAYOUT | FINISH_LAYOUT_REDO_WALLPAPER;
             }
         }
@@ -5254,11 +5255,8 @@
             }
         }
 
-        // Don't allow snapshots to influence SystemUI visibility flags.
-        // TODO: Revisit this once SystemUI flags for snapshots are handled correctly
         boolean appWindow = attrs.type >= FIRST_APPLICATION_WINDOW
-                && attrs.type < FIRST_SYSTEM_WINDOW
-                && (attrs.privateFlags & PRIVATE_FLAG_TASK_SNAPSHOT) == 0;
+                && attrs.type < FIRST_SYSTEM_WINDOW;
         final int stackId = win.getStackId();
         if (mTopFullscreenOpaqueWindowState == null && visible) {
             if ((fl & FLAG_FORCE_NOT_FULLSCREEN) != 0) {
@@ -5475,23 +5473,27 @@
      *
      * @return Whether the flags have changed and we have to redo the layout.
      */
-    private boolean setKeyguardOccludedLw(boolean isOccluded) {
+    private boolean setKeyguardOccludedLw(boolean isOccluded, boolean force) {
         if (DEBUG_KEYGUARD) Slog.d(TAG, "setKeyguardOccluded occluded=" + isOccluded);
         boolean wasOccluded = mKeyguardOccluded;
         boolean showing = mKeyguardDelegate.isShowing();
         if (wasOccluded && !isOccluded && showing) {
             mKeyguardOccluded = false;
             mKeyguardDelegate.setOccluded(false, true /* animate */);
-            mStatusBar.getAttrs().privateFlags |= PRIVATE_FLAG_KEYGUARD;
-            if (!mKeyguardDelegate.hasLockscreenWallpaper()) {
-                mStatusBar.getAttrs().flags |= FLAG_SHOW_WALLPAPER;
+            if (mStatusBar != null) {
+                mStatusBar.getAttrs().privateFlags |= PRIVATE_FLAG_KEYGUARD;
+                if (!mKeyguardDelegate.hasLockscreenWallpaper()) {
+                    mStatusBar.getAttrs().flags |= FLAG_SHOW_WALLPAPER;
+                }
             }
             return true;
         } else if (!wasOccluded && isOccluded && showing) {
             mKeyguardOccluded = true;
             mKeyguardDelegate.setOccluded(true, false /* animate */);
-            mStatusBar.getAttrs().privateFlags &= ~PRIVATE_FLAG_KEYGUARD;
-            mStatusBar.getAttrs().flags &= ~FLAG_SHOW_WALLPAPER;
+            if (mStatusBar != null) {
+                mStatusBar.getAttrs().privateFlags &= ~PRIVATE_FLAG_KEYGUARD;
+                mStatusBar.getAttrs().flags &= ~FLAG_SHOW_WALLPAPER;
+            }
             return true;
         } else if (wasOccluded != isOccluded) {
             mKeyguardOccluded = isOccluded;
diff --git a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
index 218d218..32871bb 100644
--- a/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
+++ b/services/core/java/com/android/server/statusbar/StatusBarManagerService.java
@@ -763,8 +763,10 @@
         enforceStatusBarService();
         long identity = Binder.clearCallingIdentity();
         try {
+            // ShutdownThread displays UI, so give it a UI context.
             mHandler.post(() ->
-                    ShutdownThread.shutdown(mContext, PowerManager.SHUTDOWN_USER_REQUESTED, false));
+                    ShutdownThread.shutdown(getUiContext(),
+                        PowerManager.SHUTDOWN_USER_REQUESTED, false));
         } finally {
             Binder.restoreCallingIdentity(identity);
         }
@@ -780,11 +782,11 @@
         try {
             mHandler.post(() -> {
                 // ShutdownThread displays UI, so give it a UI context.
-                Context uiContext = ActivityThread.currentActivityThread().getSystemUiContext();
                 if (safeMode) {
-                    ShutdownThread.rebootSafeMode(uiContext, false);
+                    ShutdownThread.rebootSafeMode(getUiContext(), false);
                 } else {
-                    ShutdownThread.reboot(uiContext, PowerManager.SHUTDOWN_USER_REQUESTED, false);
+                    ShutdownThread.reboot(getUiContext(),
+                            PowerManager.SHUTDOWN_USER_REQUESTED, false);
                 }
             });
         } finally {
@@ -1018,4 +1020,8 @@
             }
         }
     }
+
+    private static final Context getUiContext() {
+        return ActivityThread.currentActivityThread().getSystemUiContext();
+    }
 }
diff --git a/services/core/java/com/android/server/wm/AppWindowContainerController.java b/services/core/java/com/android/server/wm/AppWindowContainerController.java
index 4b4be40..2bc3c5f 100644
--- a/services/core/java/com/android/server/wm/AppWindowContainerController.java
+++ b/services/core/java/com/android/server/wm/AppWindowContainerController.java
@@ -566,7 +566,7 @@
             return false;
         }
 
-        mContainer.startingData = new SnapshotStartingData(mService, snapshot.getSnapshot());
+        mContainer.startingData = new SnapshotStartingData(mService, snapshot);
         scheduleAddStartingWindow();
         return true;
     }
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index da524c7..4ebf1fc 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -2920,7 +2920,11 @@
                     if (stack != null) {
                         stack.getBounds(frame);
                     }
-                } else if (!mutableIncludeFullDisplay.value && !w.mIsWallpaper) {
+
+                    // We want to screenshot with the exact bounds of the surface of the app. Thus,
+                    // intersect it with the frame.
+                    frame.intersect(w.mFrame);
+                }else if (!mutableIncludeFullDisplay.value && !w.mIsWallpaper) {
                     final Rect wf = w.mFrame;
                     final Rect cr = w.mContentInsets;
                     int left = wf.left + cr.left;
diff --git a/services/core/java/com/android/server/wm/SnapshotStartingData.java b/services/core/java/com/android/server/wm/SnapshotStartingData.java
index e73d4d25..35f35db 100644
--- a/services/core/java/com/android/server/wm/SnapshotStartingData.java
+++ b/services/core/java/com/android/server/wm/SnapshotStartingData.java
@@ -16,6 +16,7 @@
 
 package com.android.server.wm;
 
+import android.app.ActivityManager.TaskSnapshot;
 import android.graphics.GraphicBuffer;
 import android.view.WindowManagerPolicy.StartingSurface;
 
@@ -25,9 +26,9 @@
 class SnapshotStartingData extends StartingData {
 
     private final WindowManagerService mService;
-    private final GraphicBuffer mSnapshot;
+    private final TaskSnapshot mSnapshot;
 
-    SnapshotStartingData(WindowManagerService service, GraphicBuffer snapshot) {
+    SnapshotStartingData(WindowManagerService service, TaskSnapshot snapshot) {
         super(service);
         mService = service;
         mSnapshot = snapshot;
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index 3ffb093..b816d81 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -17,15 +17,14 @@
 package com.android.server.wm;
 
 import static android.app.ActivityManager.RESIZE_MODE_SYSTEM_SCREEN_ROTATION;
-import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
 import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
+import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
 import static android.content.pm.ActivityInfo.RESIZE_MODE_FORCE_RESIZABLE_LANDSCAPE_ONLY;
-import static android.content.pm.ActivityInfo.RESIZE_MODE_FORCE_RESIZABLE_PRESERVE_ORIENTATION;
 import static android.content.pm.ActivityInfo.RESIZE_MODE_FORCE_RESIZABLE_PORTRAIT_ONLY;
+import static android.content.pm.ActivityInfo.RESIZE_MODE_FORCE_RESIZABLE_PRESERVE_ORIENTATION;
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSET;
 import static com.android.server.EventLogTags.WM_TASK_REMOVED;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_STACK;
-import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_TASK_MOVEMENT;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
@@ -40,7 +39,6 @@
 import android.view.Surface;
 
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.server.EventLogTags;
 
 import java.io.PrintWriter;
 
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index b8d0b8c..48b01f4 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -28,6 +28,7 @@
 import android.app.ActivityManager.TaskSnapshot;
 import android.graphics.Canvas;
 import android.graphics.GraphicBuffer;
+import android.graphics.Rect;
 import android.os.Environment;
 import android.util.ArraySet;
 import android.view.WindowManagerPolicy.StartingSurface;
@@ -152,7 +153,7 @@
      * MANAGER LOCK WHEN CALLING THIS METHOD!
      */
     StartingSurface createStartingSurface(AppWindowToken token,
-            GraphicBuffer snapshot) {
+            TaskSnapshot snapshot) {
         return TaskSnapshotSurface.create(mService, token, snapshot);
     }
 
@@ -166,8 +167,17 @@
         if (buffer == null) {
             return null;
         }
+        final WindowState mainWindow = top.findMainWindow();
         return new TaskSnapshot(buffer, top.getConfiguration().orientation,
-                top.findMainWindow().mStableInsets, false /* reduced */, 1f /* scale */);
+                minRect(mainWindow.mContentInsets, mainWindow.mStableInsets), false /* reduced */,
+                1f /* scale */);
+    }
+
+    private Rect minRect(Rect rect1, Rect rect2) {
+        return new Rect(Math.min(rect1.left, rect2.left),
+                Math.min(rect1.top, rect2.top),
+                Math.min(rect1.right, rect2.right),
+                Math.min(rect1.bottom, rect2.bottom));
     }
 
     /**
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
index 04403e2..1591e48 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotSurface.java
@@ -16,20 +16,35 @@
 
 package com.android.server.wm;
 
-import static android.view.WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS;
-import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
-import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
+import static android.graphics.Color.WHITE;
+import static android.graphics.Color.alpha;
+import static android.view.SurfaceControl.HIDDEN;
+import static android.view.WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM;
+import static android.view.WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
+import static android.view.WindowManager.LayoutParams.FLAG_IGNORE_CHEEK_PRESSES;
+import static android.view.WindowManager.LayoutParams.FLAG_LOCAL_FOCUS_MODE;
 import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
 import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
+import static android.view.WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL;
+import static android.view.WindowManager.LayoutParams.FLAG_SCALED;
+import static android.view.WindowManager.LayoutParams.FLAG_SECURE;
+import static android.view.WindowManager.LayoutParams.FLAG_SLIPPERY;
+import static android.view.WindowManager.LayoutParams.FLAG_SPLIT_TOUCH;
+import static android.view.WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
+import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_DRAW_STATUS_BAR_BACKGROUND;
 import static android.view.WindowManager.LayoutParams.PRIVATE_FLAG_TASK_SNAPSHOT;
 import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
+import static com.android.internal.policy.DecorView.NAVIGATION_BAR_COLOR_VIEW_ATTRIBUTES;
+import static com.android.internal.policy.DecorView.STATUS_BAR_COLOR_VIEW_ATTRIBUTES;
+import static com.android.internal.policy.DecorView.getColorViewLeftInset;
+import static com.android.internal.policy.DecorView.getColorViewTopInset;
+import static com.android.internal.policy.DecorView.getNavigationBarRect;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 
 import android.app.ActivityManager.TaskDescription;
-import android.graphics.Bitmap;
+import android.app.ActivityManager.TaskSnapshot;
 import android.graphics.Canvas;
-import android.graphics.Color;
 import android.graphics.GraphicBuffer;
 import android.graphics.Paint;
 import android.graphics.Rect;
@@ -37,17 +52,22 @@
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
+import android.os.SystemClock;
 import android.util.MergedConfiguration;
 import android.util.Slog;
 import android.view.IWindowSession;
 import android.view.Surface;
+import android.view.SurfaceControl;
+import android.view.SurfaceSession;
 import android.view.View;
 import android.view.ViewGroup.LayoutParams;
 import android.view.WindowManager;
 import android.view.WindowManagerGlobal;
 import android.view.WindowManagerPolicy.StartingSurface;
 
+import com.android.internal.R;
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.policy.DecorView;
 import com.android.internal.view.BaseIWindow;
 
 /**
@@ -57,19 +77,57 @@
  */
 class TaskSnapshotSurface implements StartingSurface {
 
+    private static final long SIZE_MISMATCH_MINIMUM_TIME_MS = 450;
+
+    /**
+     * When creating the starting window, we use the exact same layout flags such that we end up
+     * with a window with the exact same dimensions etc. However, these flags are not used in layout
+     * and might cause other side effects so we exclude them.
+     */
+    private static final int FLAG_INHERIT_EXCLUDES = FLAG_NOT_FOCUSABLE
+            | FLAG_NOT_TOUCHABLE
+            | FLAG_NOT_TOUCH_MODAL
+            | FLAG_ALT_FOCUSABLE_IM
+            | FLAG_NOT_FOCUSABLE
+            | FLAG_HARDWARE_ACCELERATED
+            | FLAG_IGNORE_CHEEK_PRESSES
+            | FLAG_LOCAL_FOCUS_MODE
+            | FLAG_SLIPPERY
+            | FLAG_WATCH_OUTSIDE_TOUCH
+            | FLAG_SPLIT_TOUCH
+            | FLAG_SCALED
+            | FLAG_SECURE;
+
     private static final String TAG = TAG_WITH_CLASS_NAME ? "SnapshotStartingWindow" : TAG_WM;
     private static final int MSG_REPORT_DRAW = 0;
     private static final String TITLE_FORMAT = "SnapshotStartingWindow for taskId=%s";
     private final Window mWindow;
     private final Surface mSurface;
+    private SurfaceControl mChildSurfaceControl;
     private final IWindowSession mSession;
     private final WindowManagerService mService;
+    private final Rect mTaskBounds;
+    private final Rect mStableInsets = new Rect();
+    private final Rect mContentInsets = new Rect();
+    private final Rect mFrame = new Rect();
+    private final TaskSnapshot mSnapshot;
+    private final CharSequence mTitle;
     private boolean mHasDrawn;
     private boolean mReportNextDraw;
-    private Paint mFillBackgroundPaint = new Paint();
+    private long mShownTime;
+    private final Handler mHandler;
+    private final boolean mSizeMismatch;
+    private final Paint mBackgroundPaint = new Paint();
+    private final Paint mStatusBarPaint = new Paint();
+    private final Paint mNavigationBarPaint = new Paint();
+    private final int mStatusBarColor;
+    private final int mNavigationBarColor;
+    private final int mSysUiVis;
+    private final int mWindowFlags;
+    private final int mWindowPrivateFlags;
 
     static TaskSnapshotSurface create(WindowManagerService service, AppWindowToken token,
-            GraphicBuffer snapshot) {
+            TaskSnapshot snapshot) {
 
         final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
         final Window window = new Window();
@@ -78,32 +136,51 @@
         final Surface surface = new Surface();
         final Rect tmpRect = new Rect();
         final Rect tmpFrame = new Rect();
+        final Rect taskBounds;
+        final Rect tmpContentInsets = new Rect();
+        final Rect tmpStableInsets = new Rect();
         final MergedConfiguration tmpMergedConfiguration = new MergedConfiguration();
-        int fillBackgroundColor = Color.WHITE;
+        int backgroundColor = WHITE;
+        int statusBarColor = 0;
+        int navigationBarColor = 0;
+        final int sysUiVis;
+        final int windowFlags;
+        final int windowPrivateFlags;
         synchronized (service.mWindowMap) {
+            final WindowState mainWindow = token.findMainWindow();
+            if (mainWindow == null) {
+                Slog.w(TAG, "TaskSnapshotSurface.create: Failed to find main window for token="
+                        + token);
+                return null;
+            }
+            sysUiVis = mainWindow.getSystemUiVisibility();
+            windowFlags = mainWindow.getAttrs().flags;
+            windowPrivateFlags = mainWindow.getAttrs().privateFlags;
+
             layoutParams.type = TYPE_APPLICATION_STARTING;
-            layoutParams.format = snapshot.getFormat();
-            layoutParams.flags = FLAG_LAYOUT_INSET_DECOR
-                    | FLAG_LAYOUT_IN_SCREEN
+            layoutParams.format = snapshot.getSnapshot().getFormat();
+            layoutParams.flags = (windowFlags & ~FLAG_INHERIT_EXCLUDES)
                     | FLAG_NOT_FOCUSABLE
-                    | FLAG_NOT_TOUCHABLE
-                    | FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS;
+                    | FLAG_NOT_TOUCHABLE;
             layoutParams.privateFlags = PRIVATE_FLAG_TASK_SNAPSHOT;
             layoutParams.token = token.token;
             layoutParams.width = LayoutParams.MATCH_PARENT;
             layoutParams.height = LayoutParams.MATCH_PARENT;
-
-            // TODO: Inherit behavior whether to draw behind status bar/nav bar.
-            layoutParams.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
-                    | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
+            layoutParams.systemUiVisibility = sysUiVis;
             final Task task = token.getTask();
             if (task != null) {
-                layoutParams.setTitle(String.format(TITLE_FORMAT,task.mTaskId));
+                layoutParams.setTitle(String.format(TITLE_FORMAT, task.mTaskId));
 
                 final TaskDescription taskDescription = task.getTaskDescription();
                 if (taskDescription != null) {
-                    fillBackgroundColor = taskDescription.getBackgroundColor();
+                    backgroundColor = taskDescription.getBackgroundColor();
+                    statusBarColor = taskDescription.getStatusBarColor();
+                    navigationBarColor = taskDescription.getNavigationBarColor();
                 }
+                taskBounds = new Rect();
+                task.getBounds(taskBounds);
+            } else {
+                taskBounds = null;
             }
         }
         try {
@@ -118,31 +195,57 @@
             // Local call.
         }
         final TaskSnapshotSurface snapshotSurface = new TaskSnapshotSurface(service, window,
-                surface, fillBackgroundColor);
+                surface, snapshot, layoutParams.getTitle(), backgroundColor, statusBarColor,
+                navigationBarColor, sysUiVis, windowFlags, windowPrivateFlags, taskBounds);
         window.setOuter(snapshotSurface);
         try {
             session.relayout(window, window.mSeq, layoutParams, -1, -1, View.VISIBLE, 0, tmpFrame,
-                    tmpRect, tmpRect, tmpRect, tmpRect, tmpRect, tmpRect, tmpMergedConfiguration,
-                    surface);
+                    tmpRect, tmpContentInsets, tmpRect, tmpStableInsets, tmpRect, tmpRect,
+                    tmpMergedConfiguration, surface);
         } catch (RemoteException e) {
             // Local call.
         }
-        snapshotSurface.drawSnapshot(snapshot);
+        snapshotSurface.setFrames(tmpFrame, tmpContentInsets, tmpStableInsets);
+        snapshotSurface.drawSnapshot();
         return snapshotSurface;
     }
 
     @VisibleForTesting
     TaskSnapshotSurface(WindowManagerService service, Window window, Surface surface,
-            int fillBackgroundColor) {
+            TaskSnapshot snapshot, CharSequence title, int backgroundColor, int statusBarColor,
+            int navigationBarColor, int sysUiVis, int windowFlags, int windowPrivateFlags,
+            Rect taskBounds) {
         mService = service;
+        mHandler = new Handler(mService.mH.getLooper());
         mSession = WindowManagerGlobal.getWindowSession();
         mWindow = window;
         mSurface = surface;
-        mFillBackgroundPaint.setColor(fillBackgroundColor);
+        mSnapshot = snapshot;
+        mTitle = title;
+        mBackgroundPaint.setColor(backgroundColor != 0 ? backgroundColor : WHITE);
+        mTaskBounds = taskBounds;
+        mSysUiVis = sysUiVis;
+        mWindowFlags = windowFlags;
+        mWindowPrivateFlags = windowPrivateFlags;
+        mSizeMismatch = (mFrame.width() != snapshot.getSnapshot().getWidth()
+                || mFrame.height() != snapshot.getSnapshot().getHeight());
+        mStatusBarColor = DecorView.calculateStatusBarColor(windowFlags,
+                service.mContext.getColor(R.color.system_bar_background_semi_transparent),
+                statusBarColor);
+        mNavigationBarColor = navigationBarColor;
+        mStatusBarPaint.setColor(mStatusBarColor);
+        mNavigationBarPaint.setColor(navigationBarColor);
     }
 
     @Override
     public void remove() {
+        synchronized (mService.mWindowMap) {
+            final long now = SystemClock.uptimeMillis();
+            if (mSizeMismatch && now - mShownTime < SIZE_MISMATCH_MINIMUM_TIME_MS) {
+                mHandler.postAtTime(this::remove, mShownTime + SIZE_MISMATCH_MINIMUM_TIME_MS);
+                return;
+            }
+        }
         try {
             mSession.remove(mWindow);
         } catch (RemoteException e) {
@@ -150,31 +253,149 @@
         }
     }
 
-    private void drawSnapshot(GraphicBuffer snapshot) {
-        mSurface.attachAndQueueBuffer(snapshot);
+    @VisibleForTesting
+    void setFrames(Rect frame, Rect contentInsets, Rect stableInsets) {
+        mFrame.set(frame);
+        mContentInsets.set(contentInsets);
+        mStableInsets.set(stableInsets);
+    }
+
+    private void drawSnapshot() {
+        final GraphicBuffer buffer = mSnapshot.getSnapshot();
+        if (mSizeMismatch) {
+            // The dimensions of the buffer and the window don't match, so attaching the buffer
+            // will fail. Better create a child window with the exact dimensions and fill the parent
+            // window with the background color!
+            drawSizeMismatchSnapshot(buffer);
+        } else {
+            drawSizeMatchSnapshot(buffer);
+        }
         final boolean reportNextDraw;
         synchronized (mService.mWindowMap) {
+            mShownTime = SystemClock.uptimeMillis();
             mHasDrawn = true;
             reportNextDraw = mReportNextDraw;
         }
         if (reportNextDraw) {
             reportDrawn();
         }
+    }
+
+    private void drawSizeMatchSnapshot(GraphicBuffer buffer) {
+        mSurface.attachAndQueueBuffer(buffer);
+        mSurface.release();
+    }
+
+    private void drawSizeMismatchSnapshot(GraphicBuffer buffer) {
+        final SurfaceSession session = new SurfaceSession(mSurface);
+
+        // Keep a reference to it such that it doesn't get destroyed when finalized.
+        mChildSurfaceControl = new SurfaceControl(session,
+                mTitle + " - task-snapshot-surface",
+                buffer.getWidth(), buffer.getHeight(), buffer.getFormat(), HIDDEN);
+        Surface surface = new Surface();
+        surface.copyFrom(mChildSurfaceControl);
+
+        // Clip off ugly navigation bar.
+        final Rect crop = calculateSnapshotCrop();
+        final Rect frame = calculateSnapshotFrame(crop);
+        SurfaceControl.openTransaction();
+        try {
+            // We can just show the surface here as it will still be hidden as the parent is
+            // still hidden.
+            mChildSurfaceControl.show();
+            mChildSurfaceControl.setWindowCrop(crop);
+            mChildSurfaceControl.setPosition(frame.left, frame.top);
+        } finally {
+            SurfaceControl.closeTransaction();
+        }
+        surface.attachAndQueueBuffer(buffer);
+        surface.release();
+
+        final Canvas c = mSurface.lockCanvas(null);
+        drawBackgroundAndBars(c, frame);
+        mSurface.unlockCanvasAndPost(c);
         mSurface.release();
     }
 
     @VisibleForTesting
-    void fillEmptyBackground(Canvas c, Bitmap b) {
-        final boolean fillHorizontally = c.getWidth() > b.getWidth();
-        final boolean fillVertically = c.getHeight() > b.getHeight();
+    Rect calculateSnapshotCrop() {
+        final Rect rect = new Rect();
+        rect.set(0, 0, mSnapshot.getSnapshot().getWidth(), mSnapshot.getSnapshot().getHeight());
+        final Rect insets = mSnapshot.getContentInsets();
+
+        // Let's remove all system decorations except the status bar, but only if the task is at the
+        // very top of the screen.
+        rect.inset(insets.left, mTaskBounds.top != 0 ? insets.top : 0, insets.right, insets.bottom);
+        return rect;
+    }
+
+    @VisibleForTesting
+    Rect calculateSnapshotFrame(Rect crop) {
+        final Rect frame = new Rect(crop);
+
+        // By default, offset it to to top/left corner
+        frame.offsetTo(-crop.left, -crop.top);
+
+        // However, we also need to make space for the navigation bar on the left side.
+        final int colorViewLeftInset = getColorViewLeftInset(mStableInsets.left,
+                mContentInsets.left);
+        frame.offset(colorViewLeftInset, 0);
+        return frame;
+    }
+
+    @VisibleForTesting
+    void drawBackgroundAndBars(Canvas c, Rect frame) {
+        final int statusBarHeight = getStatusBarColorViewHeight();
+        final boolean fillHorizontally = c.getWidth() > frame.right;
+        final boolean fillVertically = c.getHeight() > frame.bottom;
         if (fillHorizontally) {
-            c.drawRect(b.getWidth(), 0, c.getWidth(), fillVertically
-                        ? b.getHeight()
-                        : c.getHeight(),
-                    mFillBackgroundPaint);
+            c.drawRect(frame.right, alpha(mStatusBarColor) == 0xFF ? statusBarHeight : 0,
+                    c.getWidth(), fillVertically
+                            ? frame.bottom
+                            : c.getHeight(),
+                    mBackgroundPaint);
         }
         if (fillVertically) {
-            c.drawRect(0, b.getHeight(), c.getWidth(), c.getHeight(), mFillBackgroundPaint);
+            c.drawRect(0, frame.bottom, c.getWidth(), c.getHeight(), mBackgroundPaint);
+        }
+        drawStatusBarBackground(c, frame, statusBarHeight);
+        drawNavigationBarBackground(c);
+    }
+
+    private int getStatusBarColorViewHeight() {
+        final boolean forceStatusBarBackground =
+                (mWindowPrivateFlags & PRIVATE_FLAG_FORCE_DRAW_STATUS_BAR_BACKGROUND) != 0;
+        if (STATUS_BAR_COLOR_VIEW_ATTRIBUTES.isVisible(
+                mSysUiVis, mStatusBarColor, mWindowFlags, forceStatusBarBackground)) {
+            return getColorViewTopInset(mStableInsets.top, mContentInsets.top);
+        } else {
+            return 0;
+        }
+    }
+
+    private boolean isNavigationBarColorViewVisible() {
+        return NAVIGATION_BAR_COLOR_VIEW_ATTRIBUTES.isVisible(
+                mSysUiVis, mNavigationBarColor, mWindowFlags, false /* force */);
+    }
+
+    @VisibleForTesting
+    void drawStatusBarBackground(Canvas c, Rect frame, int statusBarHeight) {
+        if (statusBarHeight > 0 && c.getWidth() > frame.right) {
+            final int rightInset = DecorView.getColorViewRightInset(mStableInsets.right,
+                    mContentInsets.right);
+            c.drawRect(frame.right, 0, c.getWidth() - rightInset, statusBarHeight, mStatusBarPaint);
+        }
+    }
+
+    @VisibleForTesting
+    void drawNavigationBarBackground(Canvas c) {
+        final Rect navigationBarRect = new Rect();
+        getNavigationBarRect(c.getWidth(), c.getHeight(), mStableInsets, mContentInsets,
+                navigationBarRect);
+        final boolean visible = isNavigationBarColorViewVisible();
+        if (visible && !navigationBarRect.isEmpty()) {
+            c.drawRect(navigationBarRect, mNavigationBarPaint);
         }
     }
 
@@ -211,10 +432,10 @@
         }
     };
 
-    private static class Window extends BaseIWindow {
+    @VisibleForTesting
+    static class Window extends BaseIWindow {
 
         private TaskSnapshotSurface mOuter;
-
         public void setOuter(TaskSnapshotSurface outer) {
             mOuter = outer;
         }
diff --git a/services/core/java/com/android/server/wm/WindowAnimator.java b/services/core/java/com/android/server/wm/WindowAnimator.java
index 57fb81c..57eaa2b 100644
--- a/services/core/java/com/android/server/wm/WindowAnimator.java
+++ b/services/core/java/com/android/server/wm/WindowAnimator.java
@@ -17,17 +17,15 @@
 package com.android.server.wm;
 
 import static android.view.Display.DEFAULT_DISPLAY;
-import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
-import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WALLPAPER;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_WINDOW_TRACE;
 import static com.android.server.wm.WindowManagerDebugConfig.SHOW_TRANSACTIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM;
 import static com.android.server.wm.WindowSurfacePlacer.SET_ORIENTATION_CHANGE_COMPLETE;
 import static com.android.server.wm.WindowSurfacePlacer.SET_UPDATE_ROTATION;
-import static com.android.server.wm.WindowSurfacePlacer.SET_WALLPAPER_MAY_CHANGE;
 
 import android.content.Context;
+import android.os.Handler;
 import android.os.Trace;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -36,6 +34,9 @@
 import android.view.SurfaceControl;
 import android.view.WindowManagerPolicy;
 
+import com.android.internal.view.SurfaceFlingerVsyncChoreographer;
+import com.android.server.DisplayThread;
+
 import java.io.PrintWriter;
 
 /**
@@ -82,20 +83,31 @@
     // check if some got replaced and can be removed.
     private boolean mRemoveReplacedWindows = false;
 
+    private long mCurrentFrameTime;
+    private final Runnable mAnimationTick;
+    private final SurfaceFlingerVsyncChoreographer mSfChoreographer;
+
     WindowAnimator(final WindowManagerService service) {
         mService = service;
         mContext = service.mContext;
         mPolicy = service.mPolicy;
         mWindowPlacerLocked = service.mWindowPlacerLocked;
+        final Handler handler = DisplayThread.getHandler();
 
-        mAnimationFrameCallback = new Choreographer.FrameCallback() {
-            public void doFrame(long frameTimeNs) {
-                synchronized (mService.mWindowMap) {
-                    mService.mAnimationScheduled = false;
-                    animateLocked(frameTimeNs);
-                }
+        // TODO: Multi-display: If displays have different vsync tick, have a separate tick per
+        // display.
+        mSfChoreographer = new SurfaceFlingerVsyncChoreographer(handler,
+                mService.getDefaultDisplayContentLocked().getDisplay());
+        mAnimationTick = () -> {
+            synchronized (mService.mWindowMap) {
+                mService.mAnimationScheduled = false;
+                animateLocked(mCurrentFrameTime);
             }
         };
+        mAnimationFrameCallback = frameTimeNs -> {
+            mCurrentFrameTime = frameTimeNs;
+            mSfChoreographer.scheduleAtSfVsync(mAnimationTick);
+        };
     }
 
     void addDisplayLocked(final int displayId) {
diff --git a/services/core/java/com/android/server/wm/WindowContainerController.java b/services/core/java/com/android/server/wm/WindowContainerController.java
index 84ffc35..c4a6837 100644
--- a/services/core/java/com/android/server/wm/WindowContainerController.java
+++ b/services/core/java/com/android/server/wm/WindowContainerController.java
@@ -33,7 +33,7 @@
 
     final WindowManagerService mService;
     final RootWindowContainer mRoot;
-    final HashMap<IBinder, WindowState> mWindowMap;
+    final WindowHashMap mWindowMap;
 
     // The window container this controller owns.
     E mContainer;
diff --git a/core/java/com/android/internal/font/IFontManager.aidl b/services/core/java/com/android/server/wm/WindowHashMap.java
similarity index 65%
copy from core/java/com/android/internal/font/IFontManager.aidl
copy to services/core/java/com/android/server/wm/WindowHashMap.java
index 52a6262..49bba41 100644
--- a/core/java/com/android/internal/font/IFontManager.aidl
+++ b/services/core/java/com/android/server/wm/WindowHashMap.java
@@ -11,17 +11,18 @@
  * 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.
+ * limitations under the License
  */
 
-package com.android.internal.font;
+package com.android.server.wm;
 
-import android.text.FontConfig;
+import android.os.IBinder;
+
+import java.util.HashMap;
 
 /**
- * Interface to the font manager.
- * @hide
+ * Subclass of HashMap such that we can instruct the compiler to boost our thread priority when
+ * locking this class. See makefile.
  */
-interface IFontManager {
-    FontConfig getSystemFonts();
+class WindowHashMap extends HashMap<IBinder, WindowState> {
 }
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index f1796de..1be0512 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -17,6 +17,7 @@
 package com.android.server.wm;
 
 import static android.Manifest.permission.MANAGE_APP_TOKENS;
+import static android.Manifest.permission.READ_FRAME_BUFFER;
 import static android.Manifest.permission.REGISTER_WINDOW_MANAGER_LISTENERS;
 import static android.app.ActivityManager.DOCKED_STACK_CREATE_MODE_TOP_OR_LEFT;
 import static android.app.ActivityManager.StackId.PINNED_STACK_ID;
@@ -25,6 +26,11 @@
 import static android.app.admin.DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED;
 import static android.content.Intent.ACTION_USER_REMOVED;
 import static android.content.Intent.EXTRA_USER_HANDLE;
+import static android.os.Process.ROOT_UID;
+import static android.os.Process.SHELL_UID;
+import static android.os.Process.SYSTEM_UID;
+import static android.os.Process.THREAD_PRIORITY_DISPLAY;
+import static android.os.Process.myPid;
 import static android.os.UserHandle.USER_NULL;
 import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.WindowManager.DOCKED_INVALID;
@@ -60,6 +66,8 @@
 import static android.view.WindowManagerGlobal.RELAYOUT_RES_SURFACE_CHANGED;
 import static android.view.WindowManagerPolicy.FINISH_LAYOUT_REDO_LAYOUT;
 import static android.view.WindowManagerPolicy.FINISH_LAYOUT_REDO_WALLPAPER;
+import static com.android.server.LockGuard.INDEX_WINDOW;
+import static com.android.server.LockGuard.installLock;
 import static com.android.server.wm.AppTransition.TRANSIT_UNSET;
 import static com.android.server.wm.AppWindowAnimator.PROLONG_ANIMATION_AT_END;
 import static com.android.server.wm.AppWindowAnimator.PROLONG_ANIMATION_AT_START;
@@ -125,7 +133,6 @@
 import android.hardware.display.DisplayManagerInternal;
 import android.hardware.input.InputManager;
 import android.net.Uri;
-import android.os.PowerSaveState;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
@@ -139,7 +146,7 @@
 import android.os.ParcelFileDescriptor;
 import android.os.PowerManager;
 import android.os.PowerManagerInternal;
-import android.os.Process;
+import android.os.PowerSaveState;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.StrictMode;
@@ -151,10 +158,10 @@
 import android.os.WorkSource;
 import android.provider.Settings;
 import android.util.ArraySet;
-import android.util.MergedConfiguration;
 import android.util.DisplayMetrics;
 import android.util.EventLog;
 import android.util.Log;
+import android.util.MergedConfiguration;
 import android.util.Pair;
 import android.util.Slog;
 import android.util.SparseArray;
@@ -215,7 +222,7 @@
 import com.android.server.EventLogTags;
 import com.android.server.FgThread;
 import com.android.server.LocalServices;
-import com.android.server.LockGuard;
+import com.android.server.ThreadPriorityBooster;
 import com.android.server.UiThread;
 import com.android.server.Watchdog;
 import com.android.server.input.InputManagerService;
@@ -239,10 +246,7 @@
 import java.text.DateFormat;
 import java.util.ArrayList;
 import java.util.Date;
-import java.util.HashMap;
 import java.util.List;
-
-import static android.Manifest.permission.READ_FRAME_BUFFER;
 /** {@hide} */
 public class WindowManagerService extends IWindowManager.Stub
         implements Watchdog.Monitor, WindowManagerPolicy.WindowManagerFuncs {
@@ -408,7 +412,7 @@
      * This is also used as the lock for all of our state.
      * NOTE: Never call into methods that lock ActivityManagerService while holding this object.
      */
-    final HashMap<IBinder, WindowState> mWindowMap = new HashMap<>();
+    final WindowHashMap mWindowMap = new WindowHashMap();
 
     /**
      * List of window tokens that have finished starting their application,
@@ -848,6 +852,16 @@
     // since they won't be notified through the app window animator.
     final List<IBinder> mNoAnimationNotifyOnTransitionFinished = new ArrayList<>();
 
+    private static ThreadPriorityBooster sThreadPriorityBooster = new ThreadPriorityBooster(
+            THREAD_PRIORITY_DISPLAY, INDEX_WINDOW);
+
+    static void boostPriorityForLockedSection() {
+        sThreadPriorityBooster.boost();
+    }
+
+    static void resetPriorityAfterLockedSection() {
+        sThreadPriorityBooster.reset();
+    }
 
     void openSurfaceTransaction() {
         synchronized (mWindowMap) {
@@ -936,7 +950,7 @@
     private WindowManagerService(Context context, InputManagerService inputManager,
             boolean haveInputMethods, boolean showBootMsgs, boolean onlyCore,
             WindowManagerPolicy policy) {
-        LockGuard.installLock(this, LockGuard.INDEX_WINDOW);
+        installLock(this, INDEX_WINDOW);
         mRoot = new RootWindowContainer(this);
         mContext = context;
         mHaveInputMethods = haveInputMethods;
@@ -1581,7 +1595,7 @@
     @Override
     public void enableSurfaceTrace(ParcelFileDescriptor pfd) {
         final int callingUid = Binder.getCallingUid();
-        if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID) {
+        if (callingUid != SHELL_UID && callingUid != ROOT_UID) {
             throw new SecurityException("Only shell can call enableSurfaceTrace");
         }
 
@@ -1593,8 +1607,8 @@
     @Override
     public void disableSurfaceTrace() {
         final int callingUid = Binder.getCallingUid();
-        if (callingUid != Process.SHELL_UID && callingUid != Process.ROOT_UID &&
-            callingUid != Process.SYSTEM_UID) {
+        if (callingUid != SHELL_UID && callingUid != ROOT_UID &&
+            callingUid != SYSTEM_UID) {
             throw new SecurityException("Only shell can call disableSurfaceTrace");
         }
         synchronized (mWindowMap) {
@@ -1608,7 +1622,7 @@
     @Override
     public void setScreenCaptureDisabled(int userId, boolean disabled) {
         int callingUid = Binder.getCallingUid();
-        if (callingUid != Process.SYSTEM_UID) {
+        if (callingUid != SYSTEM_UID) {
             throw new SecurityException("Only system can call setScreenCaptureDisabled.");
         }
 
@@ -2264,7 +2278,7 @@
 
     boolean checkCallingPermission(String permission, String func) {
         // Quick check: if the calling permission is me, it's all okay.
-        if (Binder.getCallingPid() == Process.myPid()) {
+        if (Binder.getCallingPid() == myPid()) {
             return true;
         }
 
@@ -2917,7 +2931,7 @@
         }
         // If this isn't coming from the system then don't allow disabling the lockscreen
         // to bypass security.
-        if (Binder.getCallingUid() != Process.SYSTEM_UID && isKeyguardSecure()) {
+        if (Binder.getCallingUid() != SYSTEM_UID && isKeyguardSecure()) {
             Log.d(TAG_WM, "current mode is SecurityMode, ignore disableKeyguard");
             return;
         }
@@ -7058,7 +7072,7 @@
                     throw new IllegalStateException("Magnification callbacks not set!");
                 }
             }
-            if (Binder.getCallingPid() != android.os.Process.myPid()) {
+            if (Binder.getCallingPid() != myPid()) {
                 spec.recycle();
             }
         }
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 6fd95a4..8098eea 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -2395,6 +2395,9 @@
         if (requestAnim) {
             mService.scheduleAnimationLocked();
         }
+        if ((mAttrs.flags & FLAG_NOT_FOCUSABLE) == 0) {
+            mService.updateFocusedWindowLocked(UPDATE_FOCUS_NORMAL, false /* updateImWindows */);
+        }
         return true;
     }
 
@@ -2437,6 +2440,9 @@
         if (requestAnim) {
             mService.scheduleAnimationLocked();
         }
+        if (mService.mCurrentFocus == this) {
+            mService.updateFocusedWindowLocked(UPDATE_FOCUS_NORMAL, false /* updateImWindows */);
+        }
         return true;
     }
 
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index 412cf81..a5eac46 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -1017,12 +1017,6 @@
                 traceEnd();
             }
 
-            if (!disableNonCoreServices) {
-                traceBeginAndSlog("StartFontServiceManager");
-                mSystemServiceManager.startService(FontManagerService.Lifecycle.class);
-                traceEnd();
-            }
-
             if (!disableNonCoreServices && !disableTextServices) {
                 traceBeginAndSlog("StartTextServicesManager");
                 mSystemServiceManager.startService(TextServicesManagerService.Lifecycle.class);
diff --git a/services/profile-classes b/services/profile-classes
index 1b304e1..b0d2da7 100644
--- a/services/profile-classes
+++ b/services/profile-classes
@@ -2481,7 +2481,6 @@
 Landroid/text/FontConfig$Family$1;
 Landroid/text/FontConfig$Font;
 Landroid/text/FontConfig$Font$1;
-Landroid/text/FontManager;
 Landroid/text/format/DateFormat;
 Landroid/text/format/Time;
 Landroid/text/format/Time$TimeCalculator;
@@ -3132,8 +3131,6 @@
 Lcom/android/internal/content/PackageMonitor;
 Lcom/android/internal/content/ReferrerIntent;
 Lcom/android/internal/content/ReferrerIntent$1;
-Lcom/android/internal/font/IFontManager;
-Lcom/android/internal/font/IFontManager$Stub;
 Lcom/android/internal/graphics/drawable/AnimationScaleListDrawable;
 Lcom/android/internal/graphics/drawable/AnimationScaleListDrawable$AnimationScaleListState;
 Lcom/android/internal/hardware/AmbientDisplayConfiguration;
@@ -4377,8 +4374,6 @@
 Lcom/android/server/firewall/StringFilter$8;
 Lcom/android/server/firewall/StringFilter$9;
 Lcom/android/server/firewall/StringFilter$ValueProvider;
-Lcom/android/server/FontManagerService;
-Lcom/android/server/FontManagerService$Lifecycle;
 Lcom/android/server/GestureLauncherService;
 Lcom/android/server/GestureLauncherService$1;
 Lcom/android/server/GestureLauncherService$2;
diff --git a/services/tests/servicestests/src/com/android/server/NetworkScorerAppManagerTest.java b/services/tests/servicestests/src/com/android/server/NetworkScorerAppManagerTest.java
index 9197ccf9..0694eae 100644
--- a/services/tests/servicestests/src/com/android/server/NetworkScorerAppManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/NetworkScorerAppManagerTest.java
@@ -22,6 +22,7 @@
 import static junit.framework.Assert.assertTrue;
 
 import static org.junit.Assert.assertFalse;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyInt;
 import static org.mockito.Matchers.eq;
@@ -170,6 +171,7 @@
         mockScoreNetworksGranted(recoComponent.getPackageName());
         mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
                 enableUseOpenWifiComponent.getPackageName());
+        mockEnableUseOpenWifiActivity(enableUseOpenWifiComponent);
 
         final NetworkScorerAppData activeScorer = mNetworkScorerAppManager.getActiveScorer();
         assertNotNull(activeScorer);
@@ -350,6 +352,173 @@
                 eq(Settings.Global.NETWORK_RECOMMENDATIONS_PACKAGE), any());
     }
 
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_networkScorerAppIsNull()
+            throws Exception {
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP)).thenReturn(null);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_networkScorerAppIsEmpty()
+            throws Exception {
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP)).thenReturn("");
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_networkScorerIsNotActive()
+            throws Exception {
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP)).thenReturn("com.foo.package");
+        // Make getActiveScorer() return null.
+        setRecommendationsEnabledSetting(NetworkScoreManager.RECOMMENDATIONS_ENABLED_FORCED_OFF);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_useOpenWifiSettingIsNotEmpty()
+            throws Exception {
+        final ComponentName recoComponent = new ComponentName("package1", "class1");
+        final ComponentName enableUseOpenWifiComponent = new ComponentName("package2", "class2");
+        setNetworkRecoPackageSetting(recoComponent.getPackageName());
+        mockScoreNetworksGranted(recoComponent.getPackageName());
+        mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
+                enableUseOpenWifiComponent.getPackageName());
+        mockEnableUseOpenWifiActivity(enableUseOpenWifiComponent);
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP))
+                .thenReturn(enableUseOpenWifiComponent.getPackageName());
+        // The setting has a value so the migration shouldn't touch it.
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.USE_OPEN_WIFI_PACKAGE))
+                .thenReturn(enableUseOpenWifiComponent.getPackageName());
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.NETWORK_SCORER_APP), eq(null));
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_useOpenWifiActivityNotAvail()
+            throws Exception {
+        final ComponentName recoComponent = new ComponentName("package1", "class1");
+        final ComponentName enableUseOpenWifiComponent = new ComponentName("package2", "class2");
+        setNetworkRecoPackageSetting(recoComponent.getPackageName());
+        mockScoreNetworksGranted(recoComponent.getPackageName());
+        // The active component doesn't have an open wifi activity so the migration shouldn't
+        // set USE_OPEN_WIFI_PACKAGE.
+        mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
+                null /*useOpenWifiActivityPackage*/);
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP))
+                .thenReturn(enableUseOpenWifiComponent.getPackageName());
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.USE_OPEN_WIFI_PACKAGE)).thenReturn(null);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.NETWORK_SCORER_APP), eq(null));
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_packageMismatch_activity()
+            throws Exception {
+        final ComponentName recoComponent = new ComponentName("package1", "class1");
+        final ComponentName enableUseOpenWifiComponent = new ComponentName("package2", "class2");
+        setNetworkRecoPackageSetting(recoComponent.getPackageName());
+        mockScoreNetworksGranted(recoComponent.getPackageName());
+        mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
+                enableUseOpenWifiComponent.getPackageName());
+        mockEnableUseOpenWifiActivity(enableUseOpenWifiComponent);
+        // The older network scorer app setting doesn't match the new use open wifi activity package
+        // so the migration shouldn't set USE_OPEN_WIFI_PACKAGE.
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP))
+                .thenReturn(enableUseOpenWifiComponent.getPackageName() + ".diff");
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.USE_OPEN_WIFI_PACKAGE)).thenReturn(null);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.NETWORK_SCORER_APP), eq(null));
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_packageMismatch_service()
+            throws Exception {
+        final ComponentName recoComponent = new ComponentName("package1", "class1");
+        final ComponentName enableUseOpenWifiComponent = new ComponentName("package2", "class2");
+        setNetworkRecoPackageSetting(recoComponent.getPackageName());
+        mockScoreNetworksGranted(recoComponent.getPackageName());
+        mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
+                enableUseOpenWifiComponent.getPackageName());
+        mockEnableUseOpenWifiActivity(enableUseOpenWifiComponent);
+        // The older network scorer app setting doesn't match the active package so the migration
+        // shouldn't set USE_OPEN_WIFI_PACKAGE.
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP))
+                .thenReturn(recoComponent.getPackageName() + ".diff");
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.USE_OPEN_WIFI_PACKAGE)).thenReturn(null);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade, never()).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE), anyString());
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.NETWORK_SCORER_APP), eq(null));
+    }
+
+    @Test
+    public void testMigrateNetworkScorerAppSettingIfNeeded_packageMatch_activity()
+            throws Exception {
+        final ComponentName recoComponent = new ComponentName("package1", "class1");
+        final ComponentName enableUseOpenWifiComponent = new ComponentName("package2", "class2");
+        setNetworkRecoPackageSetting(recoComponent.getPackageName());
+        mockScoreNetworksGranted(recoComponent.getPackageName());
+        mockRecommendationServiceAvailable(recoComponent, 924 /* packageUid */,
+                enableUseOpenWifiComponent.getPackageName());
+        mockEnableUseOpenWifiActivity(enableUseOpenWifiComponent);
+        // Old setting matches the new activity package, migration should happen.
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.NETWORK_SCORER_APP))
+                .thenReturn(enableUseOpenWifiComponent.getPackageName());
+        when(mSettingsFacade.getString(mMockContext,
+                Settings.Global.USE_OPEN_WIFI_PACKAGE)).thenReturn(null);
+
+        mNetworkScorerAppManager.migrateNetworkScorerAppSettingIfNeeded();
+
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.USE_OPEN_WIFI_PACKAGE),
+                eq(enableUseOpenWifiComponent.getPackageName()));
+        verify(mSettingsFacade).putString(eq(mMockContext),
+                eq(Settings.Global.NETWORK_SCORER_APP), eq(null));
+    }
+
     private void setRecommendationsEnabledSetting(int value) {
         when(mSettingsFacade.getInt(eq(mMockContext),
                 eq(Settings.Global.NETWORK_RECOMMENDATIONS_ENABLED), anyInt())).thenReturn(value);
diff --git a/services/tests/servicestests/src/com/android/server/wm/TaskSnapshotSurfaceTest.java b/services/tests/servicestests/src/com/android/server/wm/TaskSnapshotSurfaceTest.java
index aab75ee..717ddf2 100644
--- a/services/tests/servicestests/src/com/android/server/wm/TaskSnapshotSurfaceTest.java
+++ b/services/tests/servicestests/src/com/android/server/wm/TaskSnapshotSurfaceTest.java
@@ -16,6 +16,9 @@
 
 package com.android.server.wm;
 
+import static android.content.res.Configuration.ORIENTATION_PORTRAIT;
+import static android.view.WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS;
+import static org.junit.Assert.assertEquals;
 import static org.mockito.Matchers.any;
 import static org.mockito.Matchers.anyInt;
 import static org.mockito.Matchers.eq;
@@ -24,15 +27,19 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import android.graphics.Bitmap;
-import android.graphics.Bitmap.Config;
+import android.app.ActivityManager.TaskSnapshot;
 import android.graphics.Canvas;
 import android.graphics.Color;
+import android.graphics.GraphicBuffer;
+import android.graphics.PixelFormat;
+import android.graphics.Rect;
 import android.platform.test.annotations.Presubmit;
 import android.support.test.filters.SmallTest;
 import android.support.test.runner.AndroidJUnit4;
+import android.view.Surface;
 
-import org.junit.Before;
+import com.android.server.wm.TaskSnapshotSurface.Window;
+
 import org.junit.Test;
 import org.junit.runner.RunWith;
 
@@ -48,59 +55,174 @@
 
     private TaskSnapshotSurface mSurface;
 
-    @Before
-    public void setUp() {
-        mSurface = new TaskSnapshotSurface(null, null, null, Color.WHITE);
+    private void setupSurface(int width, int height, Rect contentInsets, int sysuiVis,
+            int windowFlags, Rect taskBounds) {
+        final GraphicBuffer buffer = GraphicBuffer.create(width, height, PixelFormat.RGBA_8888,
+                GraphicBuffer.USAGE_SW_READ_NEVER | GraphicBuffer.USAGE_SW_WRITE_NEVER);
+        final TaskSnapshot snapshot = new TaskSnapshot(buffer,
+                ORIENTATION_PORTRAIT, contentInsets, false, 1.0f);
+        mSurface = new TaskSnapshotSurface(sWm, new Window(), new Surface(), snapshot, "Test",
+                Color.WHITE, Color.RED, Color.BLUE, sysuiVis, windowFlags, 0, taskBounds);
+    }
+
+    private void setupSurface(int width, int height) {
+        setupSurface(width, height, new Rect(), 0, FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
+                new Rect(0, 0, width, height));
     }
 
     @Test
     public void fillEmptyBackground_fillHorizontally() throws Exception {
+        setupSurface(200, 100);
         final Canvas mockCanvas = mock(Canvas.class);
         when(mockCanvas.getWidth()).thenReturn(200);
         when(mockCanvas.getHeight()).thenReturn(100);
-        final Bitmap b = Bitmap.createBitmap(100, 200, Config.ARGB_8888);
-        mSurface.fillEmptyBackground(mockCanvas, b);
+        mSurface.drawBackgroundAndBars(mockCanvas, new Rect(0, 0, 100, 200));
         verify(mockCanvas).drawRect(eq(100.0f), eq(0.0f), eq(200.0f), eq(100.0f), any());
     }
 
     @Test
     public void fillEmptyBackground_fillVertically() throws Exception {
+        setupSurface(100, 200);
         final Canvas mockCanvas = mock(Canvas.class);
         when(mockCanvas.getWidth()).thenReturn(100);
         when(mockCanvas.getHeight()).thenReturn(200);
-        final Bitmap b = Bitmap.createBitmap(200, 100, Config.ARGB_8888);
-        mSurface.fillEmptyBackground(mockCanvas, b);
+        mSurface.drawBackgroundAndBars(mockCanvas, new Rect(0, 0, 200, 100));
         verify(mockCanvas).drawRect(eq(0.0f), eq(100.0f), eq(100.0f), eq(200.0f), any());
     }
 
     @Test
     public void fillEmptyBackground_fillBoth() throws Exception {
+        setupSurface(200, 200);
         final Canvas mockCanvas = mock(Canvas.class);
         when(mockCanvas.getWidth()).thenReturn(200);
         when(mockCanvas.getHeight()).thenReturn(200);
-        final Bitmap b = Bitmap.createBitmap(100, 100, Config.ARGB_8888);
-        mSurface.fillEmptyBackground(mockCanvas, b);
+        mSurface.drawBackgroundAndBars(mockCanvas, new Rect(0, 0, 100, 100));
         verify(mockCanvas).drawRect(eq(100.0f), eq(0.0f), eq(200.0f), eq(100.0f), any());
         verify(mockCanvas).drawRect(eq(0.0f), eq(100.0f), eq(200.0f), eq(200.0f), any());
     }
 
     @Test
     public void fillEmptyBackground_dontFill_sameSize() throws Exception {
+        setupSurface(100, 100);
         final Canvas mockCanvas = mock(Canvas.class);
         when(mockCanvas.getWidth()).thenReturn(100);
         when(mockCanvas.getHeight()).thenReturn(100);
-        final Bitmap b = Bitmap.createBitmap(100, 100, Config.ARGB_8888);
-        mSurface.fillEmptyBackground(mockCanvas, b);
+        mSurface.drawBackgroundAndBars(mockCanvas, new Rect(0, 0, 100, 100));
         verify(mockCanvas, never()).drawRect(anyInt(), anyInt(), anyInt(), anyInt(), any());
     }
 
     @Test
     public void fillEmptyBackground_dontFill_bitmapLarger() throws Exception {
+        setupSurface(100, 100);
         final Canvas mockCanvas = mock(Canvas.class);
         when(mockCanvas.getWidth()).thenReturn(100);
         when(mockCanvas.getHeight()).thenReturn(100);
-        final Bitmap b = Bitmap.createBitmap(200, 200, Config.ARGB_8888);
-        mSurface.fillEmptyBackground(mockCanvas, b);
+        mSurface.drawBackgroundAndBars(mockCanvas, new Rect(0, 0, 200, 200));
         verify(mockCanvas, never()).drawRect(anyInt(), anyInt(), anyInt(), anyInt(), any());
     }
+
+    @Test
+    public void testCalculateSnapshotCrop() {
+        setupSurface(100, 100, new Rect(0, 10, 0, 10), 0, 0, new Rect(0, 0, 100, 100));
+        assertEquals(new Rect(0, 0, 100, 90), mSurface.calculateSnapshotCrop());
+    }
+
+    @Test
+    public void testCalculateSnapshotCrop_taskNotOnTop() {
+        setupSurface(100, 100, new Rect(0, 10, 0, 10), 0, 0, new Rect(0, 50, 100, 100));
+        assertEquals(new Rect(0, 10, 100, 90), mSurface.calculateSnapshotCrop());
+    }
+
+    @Test
+    public void testCalculateSnapshotCrop_navBarLeft() {
+        setupSurface(100, 100, new Rect(10, 10, 0, 0), 0, 0, new Rect(0, 0, 100, 100));
+        assertEquals(new Rect(10, 0, 100, 100), mSurface.calculateSnapshotCrop());
+    }
+
+    @Test
+    public void testCalculateSnapshotCrop_navBarRight() {
+        setupSurface(100, 100, new Rect(0, 10, 10, 0), 0, 0, new Rect(0, 0, 100, 100));
+        assertEquals(new Rect(0, 0, 90, 100), mSurface.calculateSnapshotCrop());
+    }
+
+    @Test
+    public void testCalculateSnapshotFrame() {
+        setupSurface(100, 100);
+        final Rect insets = new Rect(0, 10, 0, 10);
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        assertEquals(new Rect(0, -10, 100, 70),
+                mSurface.calculateSnapshotFrame(new Rect(0, 10, 100, 90)));
+    }
+
+    @Test
+    public void testCalculateSnapshotFrame_navBarLeft() {
+        setupSurface(100, 100);
+        final Rect insets = new Rect(10, 10, 0, 0);
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        assertEquals(new Rect(0, -10, 90, 80),
+                mSurface.calculateSnapshotFrame(new Rect(10, 10, 100, 100)));
+    }
+
+    @Test
+    public void testDrawStatusBarBackground() {
+        setupSurface(100, 100);
+        final Rect insets = new Rect(0, 10, 10, 0);
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        final Canvas mockCanvas = mock(Canvas.class);
+        when(mockCanvas.getWidth()).thenReturn(100);
+        when(mockCanvas.getHeight()).thenReturn(100);
+        mSurface.drawStatusBarBackground(mockCanvas, new Rect(0, 0, 50, 100), 10);
+        verify(mockCanvas).drawRect(eq(50.0f), eq(0.0f), eq(90.0f), eq(10.0f), any());
+    }
+
+    @Test
+    public void testDrawStatusBarBackground_nope() {
+        setupSurface(100, 100);
+        final Rect insets = new Rect(0, 10, 10, 0);
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        final Canvas mockCanvas = mock(Canvas.class);
+        when(mockCanvas.getWidth()).thenReturn(100);
+        when(mockCanvas.getHeight()).thenReturn(100);
+        mSurface.drawStatusBarBackground(mockCanvas, new Rect(0, 0, 100, 100), 10);
+        verify(mockCanvas, never()).drawRect(anyInt(), anyInt(), anyInt(), anyInt(), any());
+    }
+
+    @Test
+    public void testDrawNavigationBarBackground() {
+        final Rect insets = new Rect(0, 10, 0, 10);
+        setupSurface(100, 100, insets, 0, FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
+                new Rect(0, 0, 100, 100));
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        final Canvas mockCanvas = mock(Canvas.class);
+        when(mockCanvas.getWidth()).thenReturn(100);
+        when(mockCanvas.getHeight()).thenReturn(100);
+        mSurface.drawNavigationBarBackground(mockCanvas);
+        verify(mockCanvas).drawRect(eq(new Rect(0, 90, 100, 100)), any());
+    }
+
+    @Test
+    public void testDrawNavigationBarBackground_left() {
+        final Rect insets = new Rect(10, 10, 0, 0);
+        setupSurface(100, 100, insets, 0, FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
+                new Rect(0, 0, 100, 100));
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        final Canvas mockCanvas = mock(Canvas.class);
+        when(mockCanvas.getWidth()).thenReturn(100);
+        when(mockCanvas.getHeight()).thenReturn(100);
+        mSurface.drawNavigationBarBackground(mockCanvas);
+        verify(mockCanvas).drawRect(eq(new Rect(0, 0, 10, 100)), any());
+    }
+
+    @Test
+    public void testDrawNavigationBarBackground_right() {
+        final Rect insets = new Rect(0, 10, 10, 0);
+        setupSurface(100, 100, insets, 0, FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS,
+                new Rect(0, 0, 100, 100));
+        mSurface.setFrames(new Rect(0, 0, 100, 100), insets, insets);
+        final Canvas mockCanvas = mock(Canvas.class);
+        when(mockCanvas.getWidth()).thenReturn(100);
+        when(mockCanvas.getHeight()).thenReturn(100);
+        mSurface.drawNavigationBarBackground(mockCanvas);
+        verify(mockCanvas).drawRect(eq(new Rect(90, 0, 100, 100)), any());
+    }
 }
diff --git a/tests/WindowManagerStressTest/Android.mk b/tests/WindowManagerStressTest/Android.mk
new file mode 100644
index 0000000..e4cbe93
--- /dev/null
+++ b/tests/WindowManagerStressTest/Android.mk
@@ -0,0 +1,26 @@
+#
+# 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.
+#
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := $(call all-subdir-java-files)
+
+LOCAL_PACKAGE_NAME := WindowManagerStressTest
+
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_PACKAGE)
diff --git a/tests/WindowManagerStressTest/AndroidManifest.xml b/tests/WindowManagerStressTest/AndroidManifest.xml
new file mode 100644
index 0000000..17e0f15
--- /dev/null
+++ b/tests/WindowManagerStressTest/AndroidManifest.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2017 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="test.windowmanagerstresstest">
+
+    <application
+        android:allowBackup="false"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
diff --git a/tests/WindowManagerStressTest/res/layout/activity_main.xml b/tests/WindowManagerStressTest/res/layout/activity_main.xml
new file mode 100644
index 0000000..6cf8269
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/layout/activity_main.xml
@@ -0,0 +1,38 @@
+<?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.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin"
+    tools:context="test.amslam.MainActivity">
+
+    <Button
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:id="@+id/run"
+        android:text="@string/run" />
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:id="@+id/output" />
+
+</LinearLayout>
diff --git a/tests/WindowManagerStressTest/res/mipmap-hdpi/ic_launcher.png b/tests/WindowManagerStressTest/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..cde69bc
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/mipmap-hdpi/ic_launcher.png
Binary files differ
diff --git a/tests/WindowManagerStressTest/res/mipmap-mdpi/ic_launcher.png b/tests/WindowManagerStressTest/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..c133a0c
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/mipmap-mdpi/ic_launcher.png
Binary files differ
diff --git a/tests/WindowManagerStressTest/res/mipmap-xhdpi/ic_launcher.png b/tests/WindowManagerStressTest/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..bfa42f0
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/mipmap-xhdpi/ic_launcher.png
Binary files differ
diff --git a/tests/WindowManagerStressTest/res/mipmap-xxhdpi/ic_launcher.png b/tests/WindowManagerStressTest/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..324e72c
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/mipmap-xxhdpi/ic_launcher.png
Binary files differ
diff --git a/tests/WindowManagerStressTest/res/mipmap-xxxhdpi/ic_launcher.png b/tests/WindowManagerStressTest/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..aee44e1
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/mipmap-xxxhdpi/ic_launcher.png
Binary files differ
diff --git a/tests/WindowManagerStressTest/res/values/colors.xml b/tests/WindowManagerStressTest/res/values/colors.xml
new file mode 100644
index 0000000..4270ca6
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/values/colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<resources>
+    <color name="colorPrimary">#3F51B5</color>
+    <color name="colorPrimaryDark">#303F9F</color>
+    <color name="colorAccent">#FF4081</color>
+</resources>
diff --git a/tests/WindowManagerStressTest/res/values/dimens.xml b/tests/WindowManagerStressTest/res/values/dimens.xml
new file mode 100644
index 0000000..ed4ccbc
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/values/dimens.xml
@@ -0,0 +1,19 @@
+<!-- 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.
+-->
+<resources>
+    <!-- Default screen margins, per the Android Design guidelines. -->
+    <dimen name="activity_horizontal_margin">16dp</dimen>
+    <dimen name="activity_vertical_margin">16dp</dimen>
+</resources>
diff --git a/tests/WindowManagerStressTest/res/values/strings.xml b/tests/WindowManagerStressTest/res/values/strings.xml
new file mode 100644
index 0000000..cef05dc
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/values/strings.xml
@@ -0,0 +1,19 @@
+<!--
+  ~ Copyright (C) 2017 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<resources>
+    <string name="app_name">WmSlam</string>
+    <string name="run">Run</string>
+</resources>
diff --git a/tests/WindowManagerStressTest/res/values/styles.xml b/tests/WindowManagerStressTest/res/values/styles.xml
new file mode 100644
index 0000000..0983b25
--- /dev/null
+++ b/tests/WindowManagerStressTest/res/values/styles.xml
@@ -0,0 +1,23 @@
+<!-- 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.
+-->
+<resources>
+    <!-- Base application theme. -->
+    <style name="AppTheme" parent="@android:style/Theme.Material.Light.DarkActionBar">
+        <!-- Customize your theme here. -->
+        <item name="android:colorPrimary">@color/colorPrimary</item>
+        <item name="android:colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="android:colorAccent">@color/colorAccent</item>
+    </style>
+</resources>
diff --git a/tests/WindowManagerStressTest/src/test/windowmanagerstresstest/MainActivity.java b/tests/WindowManagerStressTest/src/test/windowmanagerstresstest/MainActivity.java
new file mode 100644
index 0000000..6b9bb31
--- /dev/null
+++ b/tests/WindowManagerStressTest/src/test/windowmanagerstresstest/MainActivity.java
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package test.windowmanagerstresstest;
+
+import android.app.Activity;
+import android.graphics.Rect;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.os.SystemClock;
+import android.util.Log;
+import android.util.MergedConfiguration;
+import android.view.Display;
+import android.view.IWindowSession;
+import android.view.Surface;
+import android.view.View;
+import android.view.WindowManager;
+import android.view.WindowManager.LayoutParams;
+import android.view.WindowManagerGlobal;
+import android.widget.TextView;
+
+import com.android.internal.view.BaseIWindow;
+
+import java.util.ArrayList;
+
+public class MainActivity extends Activity {
+
+    private static final String TAG = "WmSlam";
+
+    private TextView mOutput;
+    private volatile boolean finished;
+    private final ArrayList<BaseIWindow> mWindows = new ArrayList<>();
+    private final LayoutParams mLayoutParams = new LayoutParams();
+    private final Rect mTmpRect = new Rect();
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        mOutput = (TextView) findViewById(R.id.output);
+
+        findViewById(R.id.run).setOnClickListener(view -> {
+            view.setEnabled(false);
+            mOutput.setText("");
+            startBatch();
+        });
+        mLayoutParams.token = getActivityToken();
+    }
+
+    void startBatch() {
+        new Thread(() -> {
+            finished = false;
+            addWindows();
+            startCpuRunnables();
+            for (int i = 0; i < 5; i++) {
+                final long time = SystemClock.uptimeMillis();
+                slamWm();
+                log("Total: " + (SystemClock.uptimeMillis() - time) + " ms");
+            }
+            removeWindows();
+            finished = true;
+        }).start();
+    }
+
+    void startCpuRunnables() {
+        for (int i = 0; i < 10; i++) {
+            new Thread(mUseCpuRunnable).start();
+        }
+    }
+
+    private final Runnable mUseCpuRunnable = new Runnable() {
+        @Override
+        public void run() {
+            while (!finished) {
+            }
+        }
+    };
+
+    private void log(String text) {
+        mOutput.post(() -> mOutput.append(text + "\n"));
+        Log.d(TAG, text);
+    }
+
+    private void slamWm() {
+        ArrayList<Thread> threads = new ArrayList<>();
+        for (int i = 0; i < 20; i++) {
+            for (BaseIWindow window : mWindows) {
+                Thread t = new Thread(() -> {
+                    try {
+                        WindowManagerGlobal.getWindowSession().relayout(window,
+                                window.mSeq, mLayoutParams, -1, -1, View.VISIBLE, 0, mTmpRect,
+                                mTmpRect, mTmpRect, mTmpRect, mTmpRect, mTmpRect, mTmpRect,
+                                new MergedConfiguration(), new Surface());
+                    } catch (RemoteException e) {
+                        e.printStackTrace();
+                    }
+                });
+                threads.add(t);
+                t.start();
+            }
+        }
+        for (Thread t : threads) {
+            try {
+                t.join();
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+
+    void addWindows() {
+        for (int i = 0; i < 50; i++) {
+            final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
+            layoutParams.token = getActivityToken();
+            final BaseIWindow window = new BaseIWindow();
+            final IWindowSession session = WindowManagerGlobal.getWindowSession();
+            final Rect tmpRect = new Rect();
+            try {
+                final int res = session.addToDisplayWithoutInputChannel(window, window.mSeq, layoutParams,
+                        View.VISIBLE, Display.DEFAULT_DISPLAY, tmpRect, tmpRect);
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
+            mWindows.add(window);
+        }
+    }
+
+    void removeWindows() {
+        for (BaseIWindow window : mWindows) {
+            try {
+                WindowManagerGlobal.getWindowSession().remove(window);
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}
diff --git a/tools/aapt2/link/Link.cpp b/tools/aapt2/link/Link.cpp
index 7f71589..a33fd06 100644
--- a/tools/aapt2/link/Link.cpp
+++ b/tools/aapt2/link/Link.cpp
@@ -1913,7 +1913,7 @@
   std::vector<std::string> overlay_arg_list;
   std::vector<std::string> extra_java_packages;
   Maybe<std::string> package_id;
-  Maybe<std::string> configs;
+  std::vector<std::string> configs;
   Maybe<std::string> preferred_density;
   Maybe<std::string> product_list;
   bool legacy_x_flag = false;
@@ -1971,7 +1971,7 @@
                           &legacy_x_flag)
           .OptionalSwitch("-z", "Require localization of strings marked 'suggested'",
                           &require_localization)
-          .OptionalFlag("-c",
+          .OptionalFlagList("-c",
                         "Comma separated list of configurations to include. The default\n"
                         "is all configurations",
                         &configs)
@@ -2151,28 +2151,29 @@
   }
 
   AxisConfigFilter filter;
-  if (configs) {
-    for (const StringPiece& config_str : util::Tokenize(configs.value(), ',')) {
-      ConfigDescription config;
-      LocaleValue lv;
-      if (lv.InitFromFilterString(config_str)) {
-        lv.WriteTo(&config);
-      } else if (!ConfigDescription::Parse(config_str, &config)) {
-        context.GetDiagnostics()->Error(DiagMessage() << "invalid config '"
-                                                      << config_str
-                                                      << "' for -c option");
-        return 1;
-      }
+  if (configs.empty()) {
+    for (const std::string& config_arg : configs) {
+      for (const StringPiece& config_str : util::Tokenize(config_arg, ',')) {
+        ConfigDescription config;
+        LocaleValue lv;
+        if (lv.InitFromFilterString(config_str)) {
+          lv.WriteTo(&config);
+        } else if (!ConfigDescription::Parse(config_str, &config)) {
+          context.GetDiagnostics()->Error(DiagMessage() << "invalid config '"
+                                                        << config_str
+                                                        << "' for -c option");
+          return 1;
+        }
 
-      if (config.density != 0) {
-        context.GetDiagnostics()->Warn(DiagMessage() << "ignoring density '"
-                                                     << config
-                                                     << "' for -c option");
-      } else {
-        filter.AddConfig(config);
+        if (config.density != 0) {
+          context.GetDiagnostics()->Warn(DiagMessage() << "ignoring density '"
+                                                       << config
+                                                       << "' for -c option");
+        } else {
+          filter.AddConfig(config);
+        }
       }
     }
-
     options.table_splitter_options.config_filter = &filter;
   }
 
diff --git a/tools/layoutlib/bridge/src/android/graphics/FontFamily_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/FontFamily_Delegate.java
index 7fe464a..a21fe68 100644
--- a/tools/layoutlib/bridge/src/android/graphics/FontFamily_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/FontFamily_Delegate.java
@@ -26,6 +26,7 @@
 import android.annotation.Nullable;
 import android.content.res.AssetManager;
 import android.content.res.BridgeAssetManager;
+import android.graphics.fonts.FontVariationAxis;
 import android.text.FontConfig;
 
 import java.awt.Font;
@@ -250,7 +251,7 @@
     // ---- delegate methods ----
     @LayoutlibDelegate
     /*package*/ static boolean addFont(FontFamily thisFontFamily, String path, int ttcIndex,
-            FontConfig.Axis[] axes, int weight, int italic) {
+            FontVariationAxis[] axes, int weight, int italic) {
         if (thisFontFamily.mBuilderPtr == 0) {
             assert false : "Unable to call addFont after freezing.";
             return false;
diff --git a/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
index 80e3bad..c7818a3 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Typeface_Delegate.java
@@ -23,6 +23,7 @@
 
 import android.annotation.NonNull;
 import android.graphics.FontFamily_Delegate.FontVariant;
+import android.graphics.fonts.FontVariationAxis;
 import android.text.FontConfig;
 
 import java.awt.Font;
@@ -163,7 +164,7 @@
 
     @LayoutlibDelegate
     /*package*/ static synchronized long nativeCreateFromTypefaceWithVariation(long native_instance,
-            List<FontConfig.Axis> axes) {
+            List<FontVariationAxis> axes) {
         long newInstance = nativeCreateFromTypeface(native_instance, 0);
 
         if (newInstance != 0) {