Merge "Do not re-define remote bugreport constants defined in DevicePolicyManager" into nyc-dev
diff --git a/api/current.txt b/api/current.txt
index 5293b48..e5e1248 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -5258,7 +5258,7 @@
   }
 
   public static class NotificationManager.Policy implements android.os.Parcelable {
-    ctor public deprecated NotificationManager.Policy(int, int, int);
+    ctor public NotificationManager.Policy(int, int, int);
     ctor public NotificationManager.Policy(int, int, int, int);
     method public int describeContents();
     method public static java.lang.String priorityCategoriesToString(int);
@@ -10466,7 +10466,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<android.database.CursorJoiner.Result> iterator();
     method public android.database.CursorJoiner.Result next();
-    method public void remove();
   }
 
   public static final class CursorJoiner.Result extends java.lang.Enum {
@@ -19867,7 +19866,7 @@
 
   public static abstract class AudioManager.AudioRecordingCallback {
     ctor public AudioManager.AudioRecordingCallback();
-    method public void onRecordConfigChanged();
+    method public void onRecordConfigChanged(android.media.AudioRecordConfiguration[]);
   }
 
   public static abstract interface AudioManager.OnAudioFocusChangeListener {
@@ -20851,6 +20850,7 @@
     method public final void setDataSource(android.content.Context, android.net.Uri, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String) throws java.io.IOException;
+    method public final void setDataSource(android.content.res.AssetFileDescriptor) throws java.io.IOException, java.lang.IllegalArgumentException, java.lang.IllegalStateException;
     method public final void setDataSource(java.io.FileDescriptor) throws java.io.IOException;
     method public final void setDataSource(java.io.FileDescriptor, long, long) throws java.io.IOException;
     method public void unselectTrack(int);
@@ -38479,7 +38479,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<java.lang.String> iterator();
     method public java.lang.String next();
-    method public void remove();
     method public void setString(java.lang.String);
   }
 
@@ -57715,9 +57714,10 @@
   }
 
   public abstract interface Iterator {
+    method public default void forEachRemaining(java.util.function.Consumer<? super E>);
     method public abstract boolean hasNext();
     method public abstract E next();
-    method public abstract void remove();
+    method public default void remove();
   }
 
   public class LinkedHashMap extends java.util.HashMap implements java.util.Map {
@@ -58068,6 +58068,31 @@
     method public long orElseThrow(java.util.function.Supplier<X>) throws java.lang.Throwable;
   }
 
+  public abstract interface PrimitiveIterator implements java.util.Iterator {
+    method public abstract void forEachRemaining(T_CONS);
+  }
+
+  public static abstract interface PrimitiveIterator.OfDouble implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.DoubleConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Double>);
+    method public default java.lang.Double next();
+    method public abstract double nextDouble();
+  }
+
+  public static abstract interface PrimitiveIterator.OfInt implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.IntConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Integer>);
+    method public default java.lang.Integer next();
+    method public abstract int nextInt();
+  }
+
+  public static abstract interface PrimitiveIterator.OfLong implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.LongConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Long>);
+    method public default java.lang.Long next();
+    method public abstract long nextLong();
+  }
+
   public class PriorityQueue extends java.util.AbstractQueue implements java.io.Serializable {
     ctor public PriorityQueue();
     ctor public PriorityQueue(int);
@@ -58239,7 +58264,6 @@
     method public short nextShort();
     method public short nextShort(int);
     method public int radix();
-    method public void remove();
     method public java.util.Scanner reset();
     method public java.util.Scanner skip(java.util.regex.Pattern);
     method public java.util.Scanner skip(java.lang.String);
diff --git a/api/system-current.txt b/api/system-current.txt
index e0919d3..7d94199 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5390,7 +5390,7 @@
   }
 
   public static class NotificationManager.Policy implements android.os.Parcelable {
-    ctor public deprecated NotificationManager.Policy(int, int, int);
+    ctor public NotificationManager.Policy(int, int, int);
     ctor public NotificationManager.Policy(int, int, int, int);
     method public int describeContents();
     method public static java.lang.String priorityCategoriesToString(int);
@@ -10860,7 +10860,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<android.database.CursorJoiner.Result> iterator();
     method public android.database.CursorJoiner.Result next();
-    method public void remove();
   }
 
   public static final class CursorJoiner.Result extends java.lang.Enum {
@@ -21356,7 +21355,7 @@
 
   public static abstract class AudioManager.AudioRecordingCallback {
     ctor public AudioManager.AudioRecordingCallback();
-    method public void onRecordConfigChanged();
+    method public void onRecordConfigChanged(android.media.AudioRecordConfiguration[]);
   }
 
   public static abstract interface AudioManager.OnAudioFocusChangeListener {
@@ -22343,6 +22342,7 @@
     method public final void setDataSource(android.content.Context, android.net.Uri, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String) throws java.io.IOException;
+    method public final void setDataSource(android.content.res.AssetFileDescriptor) throws java.io.IOException, java.lang.IllegalArgumentException, java.lang.IllegalStateException;
     method public final void setDataSource(java.io.FileDescriptor) throws java.io.IOException;
     method public final void setDataSource(java.io.FileDescriptor, long, long) throws java.io.IOException;
     method public void unselectTrack(int);
@@ -41246,7 +41246,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<java.lang.String> iterator();
     method public java.lang.String next();
-    method public void remove();
     method public void setString(java.lang.String);
   }
 
@@ -60819,9 +60818,10 @@
   }
 
   public abstract interface Iterator {
+    method public default void forEachRemaining(java.util.function.Consumer<? super E>);
     method public abstract boolean hasNext();
     method public abstract E next();
-    method public abstract void remove();
+    method public default void remove();
   }
 
   public class LinkedHashMap extends java.util.HashMap implements java.util.Map {
@@ -61172,6 +61172,31 @@
     method public long orElseThrow(java.util.function.Supplier<X>) throws java.lang.Throwable;
   }
 
+  public abstract interface PrimitiveIterator implements java.util.Iterator {
+    method public abstract void forEachRemaining(T_CONS);
+  }
+
+  public static abstract interface PrimitiveIterator.OfDouble implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.DoubleConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Double>);
+    method public default java.lang.Double next();
+    method public abstract double nextDouble();
+  }
+
+  public static abstract interface PrimitiveIterator.OfInt implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.IntConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Integer>);
+    method public default java.lang.Integer next();
+    method public abstract int nextInt();
+  }
+
+  public static abstract interface PrimitiveIterator.OfLong implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.LongConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Long>);
+    method public default java.lang.Long next();
+    method public abstract long nextLong();
+  }
+
   public class PriorityQueue extends java.util.AbstractQueue implements java.io.Serializable {
     ctor public PriorityQueue();
     ctor public PriorityQueue(int);
@@ -61343,7 +61368,6 @@
     method public short nextShort();
     method public short nextShort(int);
     method public int radix();
-    method public void remove();
     method public java.util.Scanner reset();
     method public java.util.Scanner skip(java.util.regex.Pattern);
     method public java.util.Scanner skip(java.lang.String);
diff --git a/api/test-current.txt b/api/test-current.txt
index 3addc2d..d1ed20c 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -5258,7 +5258,7 @@
   }
 
   public static class NotificationManager.Policy implements android.os.Parcelable {
-    ctor public deprecated NotificationManager.Policy(int, int, int);
+    ctor public NotificationManager.Policy(int, int, int);
     ctor public NotificationManager.Policy(int, int, int, int);
     method public int describeContents();
     method public static java.lang.String priorityCategoriesToString(int);
@@ -10476,7 +10476,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<android.database.CursorJoiner.Result> iterator();
     method public android.database.CursorJoiner.Result next();
-    method public void remove();
   }
 
   public static final class CursorJoiner.Result extends java.lang.Enum {
@@ -19878,7 +19877,7 @@
 
   public static abstract class AudioManager.AudioRecordingCallback {
     ctor public AudioManager.AudioRecordingCallback();
-    method public void onRecordConfigChanged();
+    method public void onRecordConfigChanged(android.media.AudioRecordConfiguration[]);
   }
 
   public static abstract interface AudioManager.OnAudioFocusChangeListener {
@@ -20862,6 +20861,7 @@
     method public final void setDataSource(android.content.Context, android.net.Uri, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String, java.util.Map<java.lang.String, java.lang.String>) throws java.io.IOException;
     method public final void setDataSource(java.lang.String) throws java.io.IOException;
+    method public final void setDataSource(android.content.res.AssetFileDescriptor) throws java.io.IOException, java.lang.IllegalArgumentException, java.lang.IllegalStateException;
     method public final void setDataSource(java.io.FileDescriptor) throws java.io.IOException;
     method public final void setDataSource(java.io.FileDescriptor, long, long) throws java.io.IOException;
     method public void unselectTrack(int);
@@ -38498,7 +38498,6 @@
     method public boolean hasNext();
     method public java.util.Iterator<java.lang.String> iterator();
     method public java.lang.String next();
-    method public void remove();
     method public void setString(java.lang.String);
   }
 
@@ -57734,9 +57733,10 @@
   }
 
   public abstract interface Iterator {
+    method public default void forEachRemaining(java.util.function.Consumer<? super E>);
     method public abstract boolean hasNext();
     method public abstract E next();
-    method public abstract void remove();
+    method public default void remove();
   }
 
   public class LinkedHashMap extends java.util.HashMap implements java.util.Map {
@@ -58087,6 +58087,31 @@
     method public long orElseThrow(java.util.function.Supplier<X>) throws java.lang.Throwable;
   }
 
+  public abstract interface PrimitiveIterator implements java.util.Iterator {
+    method public abstract void forEachRemaining(T_CONS);
+  }
+
+  public static abstract interface PrimitiveIterator.OfDouble implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.DoubleConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Double>);
+    method public default java.lang.Double next();
+    method public abstract double nextDouble();
+  }
+
+  public static abstract interface PrimitiveIterator.OfInt implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.IntConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Integer>);
+    method public default java.lang.Integer next();
+    method public abstract int nextInt();
+  }
+
+  public static abstract interface PrimitiveIterator.OfLong implements java.util.PrimitiveIterator {
+    method public default void forEachRemaining(java.util.function.LongConsumer);
+    method public default void forEachRemaining(java.util.function.Consumer<? super java.lang.Long>);
+    method public default java.lang.Long next();
+    method public abstract long nextLong();
+  }
+
   public class PriorityQueue extends java.util.AbstractQueue implements java.io.Serializable {
     ctor public PriorityQueue();
     ctor public PriorityQueue(int);
@@ -58258,7 +58283,6 @@
     method public short nextShort();
     method public short nextShort(int);
     method public int radix();
-    method public void remove();
     method public java.util.Scanner reset();
     method public java.util.Scanner skip(java.util.regex.Pattern);
     method public java.util.Scanner skip(java.lang.String);
diff --git a/cmds/am/src/com/android/commands/am/Am.java b/cmds/am/src/com/android/commands/am/Am.java
index fea6f0e..e6c5768 100644
--- a/cmds/am/src/com/android/commands/am/Am.java
+++ b/cmds/am/src/com/android/commands/am/Am.java
@@ -577,7 +577,7 @@
                         return;
                     }
                     List<ResolveInfo> activities = pm.queryIntentActivities(intent, mimeType, 0,
-                            mUserId);
+                            mUserId).getList();
                     if (activities == null || activities.size() <= 0) {
                         System.err.println("Error: Intent does not match any activities: "
                                 + intent);
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 1bc33b8..a452d20 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -113,6 +113,7 @@
 import com.android.internal.os.RuntimeInit;
 import com.android.internal.os.SamplingProfilerIntegration;
 import com.android.internal.os.SomeArgs;
+import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.FastPrintWriter;
 import com.android.org.conscrypt.OpenSSLSocketImpl;
 import com.android.org.conscrypt.TrustedCertificateStore;
@@ -193,7 +194,7 @@
 
     private ContextImpl mSystemContext;
 
-    static IPackageManager sPackageManager;
+    static volatile IPackageManager sPackageManager;
 
     final ApplicationThread mAppThread = new ApplicationThread();
     final Looper mLooper = Looper.myLooper();
@@ -218,7 +219,7 @@
     // set of instantiated backup agents, keyed by package name
     final ArrayMap<String, BackupAgent> mBackupAgents = new ArrayMap<String, BackupAgent>();
     /** Reference to singleton {@link ActivityThread} */
-    private static ActivityThread sCurrentActivityThread;
+    private static volatile ActivityThread sCurrentActivityThread;
     Instrumentation mInstrumentation;
     String mInstrumentationPackageName = null;
     String mInstrumentationAppDir = null;
@@ -296,7 +297,7 @@
     final GcIdler mGcIdler = new GcIdler();
     boolean mGcIdlerScheduled = false;
 
-    static Handler sMainThreadHandler;  // set once in main()
+    static volatile Handler sMainThreadHandler;  // set once in main()
 
     Bundle mCoreSettings = null;
 
@@ -5264,9 +5265,8 @@
             // don't bring up providers in restricted mode; they may depend on the
             // app's custom Application class
             if (!data.restrictedBackupMode) {
-                List<ProviderInfo> providers = data.providers;
-                if (providers != null) {
-                    installContentProviders(app, providers);
+                if (!ArrayUtils.isEmpty(data.providers)) {
+                    installContentProviders(app, data.providers);
                     // For process that contains content providers, we want to
                     // ensure that the JIT is enabled "at some point".
                     mH.sendEmptyMessageDelayed(H.ENABLE_JIT, 10*1000);
diff --git a/core/java/android/app/ApplicationPackageManager.java b/core/java/android/app/ApplicationPackageManager.java
index 38f32f7..0b44925 100644
--- a/core/java/android/app/ApplicationPackageManager.java
+++ b/core/java/android/app/ApplicationPackageManager.java
@@ -275,7 +275,7 @@
     public List<PermissionInfo> queryPermissionsByGroup(String group, int flags)
             throws NameNotFoundException {
         try {
-            List<PermissionInfo> pi = mPM.queryPermissionsByGroup(group, flags);
+            List<PermissionInfo> pi = mPM.queryPermissionsByGroup(group, flags).getList();
             if (pi != null) {
                 return pi;
             }
@@ -304,7 +304,7 @@
     @Override
     public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
         try {
-            return mPM.getAllPermissionGroups(flags);
+            return mPM.getAllPermissionGroups(flags).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -441,7 +441,12 @@
     @Override
     public FeatureInfo[] getSystemAvailableFeatures() {
         try {
-            return mPM.getSystemAvailableFeatures();
+            final List<FeatureInfo> list = mPM.getSystemAvailableFeatures().getList();
+            final FeatureInfo[] res = new FeatureInfo[list.size()];
+            for (int i = 0; i < res.length; i++) {
+                res[i] = list.get(i);
+            }
+            return res;
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -772,7 +777,7 @@
                 intent,
                 intent.resolveTypeIfNeeded(mContext.getContentResolver()),
                 flags,
-                userId);
+                userId).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -802,9 +807,10 @@
         }
 
         try {
-            return mPM.queryIntentActivityOptions(caller, specifics,
-                                                  specificTypes, intent, intent.resolveTypeIfNeeded(resolver),
-                                                  flags, mContext.getUserId());
+            return mPM
+                    .queryIntentActivityOptions(caller, specifics, specificTypes, intent,
+                            intent.resolveTypeIfNeeded(resolver), flags, mContext.getUserId())
+                    .getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -820,7 +826,7 @@
                 intent,
                 intent.resolveTypeIfNeeded(mContext.getContentResolver()),
                 flags,
-                userId);
+                userId).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -851,7 +857,7 @@
                 intent,
                 intent.resolveTypeIfNeeded(mContext.getContentResolver()),
                 flags,
-                userId);
+                userId).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -867,7 +873,8 @@
             Intent intent, int flags, int userId) {
         try {
             return mPM.queryIntentContentProviders(intent,
-                    intent.resolveTypeIfNeeded(mContext.getContentResolver()), flags, userId);
+                    intent.resolveTypeIfNeeded(mContext.getContentResolver()), flags, userId)
+                    .getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -926,7 +933,7 @@
     public List<InstrumentationInfo> queryInstrumentation(
         String targetPackage, int flags) {
         try {
-            return mPM.queryInstrumentation(targetPackage, flags);
+            return mPM.queryInstrumentation(targetPackage, flags).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -1572,7 +1579,7 @@
     @Override
     public List<IntentFilterVerificationInfo> getIntentFilterVerifications(String packageName) {
         try {
-            return mPM.getIntentFilterVerifications(packageName);
+            return mPM.getIntentFilterVerifications(packageName).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -1581,7 +1588,7 @@
     @Override
     public List<IntentFilter> getAllIntentFilters(String packageName) {
         try {
-            return mPM.getAllIntentFilters(packageName);
+            return mPM.getAllIntentFilters(packageName).getList();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -1892,31 +1899,21 @@
             throw e.rethrowFromSystemServer();
         }
     }
+
     @Override
     public void addPackageToPreferred(String packageName) {
-        try {
-            mPM.addPackageToPreferred(packageName);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        Log.w(TAG, "addPackageToPreferred() is a no-op");
     }
 
     @Override
     public void removePackageFromPreferred(String packageName) {
-        try {
-            mPM.removePackageFromPreferred(packageName);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        Log.w(TAG, "removePackageFromPreferred() is a no-op");
     }
 
     @Override
     public List<PackageInfo> getPreferredPackages(int flags) {
-        try {
-            return mPM.getPreferredPackages(flags);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
+        Log.w(TAG, "getPreferredPackages() is a no-op");
+        return Collections.emptyList();
     }
 
     @Override
diff --git a/core/java/android/app/NotificationManager.java b/core/java/android/app/NotificationManager.java
index 057a4e9..16aee78 100644
--- a/core/java/android/app/NotificationManager.java
+++ b/core/java/android/app/NotificationManager.java
@@ -662,7 +662,7 @@
 
     /**
      * Notification policy configuration.  Represents user-preferences for notification
-     * filtering and prioritization.
+     * filtering.
      */
     public static class Policy implements android.os.Parcelable {
         /** Reminder notifications are prioritized. */
@@ -707,13 +707,13 @@
          */
         public static final int SUPPRESSED_EFFECTS_UNSET = -1;
         /**
-         * Whether notification suppressed by DND should not interruption visually when the screen
-         * is off.
+         * Whether notifications suppressed by DND should not interrupt visually (e.g. with
+         * notification lights or by turning the screen on) when the screen is off.
          */
         public static final int SUPPRESSED_EFFECT_SCREEN_OFF = 1 << 0;
         /**
-         * Whether notification suppressed by DND should not interruption visually when the screen
-         * is on.
+         * Whether notifications suppressed by DND should not interrupt visually when the screen
+         * is on (e.g. by peeking onto the screen).
          */
         public static final int SUPPRESSED_EFFECT_SCREEN_ON = 1 << 1;
 
@@ -728,13 +728,27 @@
          */
         public final int suppressedVisualEffects;
 
-
-        @Deprecated
+        /**
+         * Constructs a policy for Do Not Disturb priority mode behavior.
+         *
+         * @param priorityCategories bitmask of categories of notifications that can bypass DND.
+         * @param priorityCallSenders which callers can bypass DND.
+         * @param priorityMessageSenders which message senders can bypass DND.
+         */
         public Policy(int priorityCategories, int priorityCallSenders, int priorityMessageSenders) {
             this(priorityCategories, priorityCallSenders, priorityMessageSenders,
                     SUPPRESSED_EFFECTS_UNSET);
         }
 
+        /**
+         * Constructs a policy for Do Not Disturb priority mode behavior.
+         *
+         * @param priorityCategories bitmask of categories of notifications that can bypass DND.
+         * @param priorityCallSenders which callers can bypass DND.
+         * @param priorityMessageSenders which message senders can bypass DND.
+         * @param suppressedVisualEffects which visual interruptions should be suppressed from
+         *                                notifications that are filtered by DND.
+         */
         public Policy(int priorityCategories, int priorityCallSenders, int priorityMessageSenders,
                 int suppressedVisualEffects) {
             this.priorityCategories = priorityCategories;
@@ -865,7 +879,6 @@
                 return new Policy[size];
             }
         };
-
     }
 
     /**
diff --git a/core/java/android/app/admin/DevicePolicyManagerInternal.java b/core/java/android/app/admin/DevicePolicyManagerInternal.java
index 0a0d77d..8cdfee5 100644
--- a/core/java/android/app/admin/DevicePolicyManagerInternal.java
+++ b/core/java/android/app/admin/DevicePolicyManagerInternal.java
@@ -69,4 +69,13 @@
      * @return true if the uid is an active admin with the given policy.
      */
     public abstract boolean isActiveAdminWithPolicy(int uid, int reqPolicy);
+
+    /**
+     * Checks if a given package has a device or a profile owner for the given user
+     *
+     * @param packageName The package to check
+     * @param userId the userId to check for.
+     * @return true if package has a device or profile owner, false otherwise.
+     */
+    public abstract boolean hasDeviceOwnerOrProfileOwner(String packageName, int userId);
 }
diff --git a/core/java/android/content/pm/AppsQueryHelper.java b/core/java/android/content/pm/AppsQueryHelper.java
index e542589..4c01b27 100644
--- a/core/java/android/content/pm/AppsQueryHelper.java
+++ b/core/java/android/content/pm/AppsQueryHelper.java
@@ -171,7 +171,7 @@
             return mPackageManager.getInstalledApplications(PackageManager.GET_UNINSTALLED_PACKAGES
                     | PackageManager.GET_DISABLED_COMPONENTS, userId).getList();
         } catch (RemoteException e) {
-            throw new IllegalStateException("Package manager has died", e);
+            throw e.rethrowFromSystemServer();
         }
     }
 
@@ -181,9 +181,9 @@
             return mPackageManager.queryIntentActivities(intent, null,
                     PackageManager.GET_DISABLED_COMPONENTS
                             | PackageManager.GET_UNINSTALLED_PACKAGES,
-                    userId);
+                    userId).getList();
         } catch (RemoteException e) {
-            throw new IllegalStateException("Package manager has died", e);
+            throw e.rethrowFromSystemServer();
         }
     }
 
@@ -192,9 +192,9 @@
         try {
             return mPackageManager.queryIntentServices(intent, null,
                     PackageManager.GET_META_DATA
-                            | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, userId);
+                            | PackageManager.GET_DISABLED_UNTIL_USED_COMPONENTS, userId).getList();
         } catch (RemoteException e) {
-            throw new IllegalStateException("Package manager has died", e);
+            throw e.rethrowFromSystemServer();
         }
     }
 
@@ -205,8 +205,7 @@
             return mPackageManager.getPackagesHoldingPermissions(new String[]{perm}, 0,
                     userId).getList();
         } catch (RemoteException e) {
-            throw new IllegalStateException("Package manager has died", e);
+            throw e.rethrowFromSystemServer();
         }
     }
-
 }
diff --git a/core/java/android/content/pm/IPackageManager.aidl b/core/java/android/content/pm/IPackageManager.aidl
index 0389085..b4e9f60 100644
--- a/core/java/android/content/pm/IPackageManager.aidl
+++ b/core/java/android/content/pm/IPackageManager.aidl
@@ -71,11 +71,11 @@
 
     PermissionInfo getPermissionInfo(String name, int flags);
 
-    List<PermissionInfo> queryPermissionsByGroup(String group, int flags);
+    ParceledListSlice queryPermissionsByGroup(String group, int flags);
 
     PermissionGroupInfo getPermissionGroupInfo(String name, int flags);
 
-    List<PermissionGroupInfo> getAllPermissionGroups(int flags);
+    ParceledListSlice getAllPermissionGroups(int flags);
 
     ApplicationInfo getApplicationInfo(String packageName, int flags ,int userId);
 
@@ -138,24 +138,24 @@
 
     boolean canForwardTo(in Intent intent, String resolvedType, int sourceUserId, int targetUserId);
 
-    List<ResolveInfo> queryIntentActivities(in Intent intent,
+    ParceledListSlice queryIntentActivities(in Intent intent,
             String resolvedType, int flags, int userId);
 
-    List<ResolveInfo> queryIntentActivityOptions(
+    ParceledListSlice queryIntentActivityOptions(
             in ComponentName caller, in Intent[] specifics,
             in String[] specificTypes, in Intent intent,
             String resolvedType, int flags, int userId);
 
-    List<ResolveInfo> queryIntentReceivers(in Intent intent,
+    ParceledListSlice queryIntentReceivers(in Intent intent,
             String resolvedType, int flags, int userId);
 
     ResolveInfo resolveService(in Intent intent,
             String resolvedType, int flags, int userId);
 
-    List<ResolveInfo> queryIntentServices(in Intent intent,
+    ParceledListSlice queryIntentServices(in Intent intent,
             String resolvedType, int flags, int userId);
 
-    List<ResolveInfo> queryIntentContentProviders(in Intent intent,
+    ParceledListSlice queryIntentContentProviders(in Intent intent,
             String resolvedType, int flags, int userId);
 
     /**
@@ -189,7 +189,7 @@
      * @return A List&lt;applicationInfo> containing one entry for each persistent
      *         application.
      */
-    List<ApplicationInfo> getPersistentApplications(int flags);
+    ParceledListSlice getPersistentApplications(int flags);
 
     ProviderInfo resolveContentProvider(String name, int flags, int userId);
 
@@ -210,7 +210,7 @@
     InstrumentationInfo getInstrumentationInfo(
             in ComponentName className, int flags);
 
-    List<InstrumentationInfo> queryInstrumentation(
+    ParceledListSlice queryInstrumentation(
             String targetPackage, int flags);
 
     /** @deprecated Use PackageInstaller instead */
@@ -240,12 +240,6 @@
 
     String getInstallerPackageName(in String packageName);
 
-    void addPackageToPreferred(String packageName);
-
-    void removePackageFromPreferred(String packageName);
-
-    List<PackageInfo> getPreferredPackages(int flags);
-
     void resetApplicationPreferences(int userId);
 
     ResolveInfo getLastChosenActivity(in Intent intent,
@@ -406,7 +400,7 @@
      * Get a list of features that are available on the
      * system.
      */
-    FeatureInfo[] getSystemAvailableFeatures();
+    ParceledListSlice getSystemAvailableFeatures();
 
     boolean hasSystemFeature(String name, int version);
 
@@ -480,8 +474,8 @@
     void verifyIntentFilter(int id, int verificationCode, in List<String> failedDomains);
     int getIntentVerificationStatus(String packageName, int userId);
     boolean updateIntentVerificationStatus(String packageName, int status, int userId);
-    List<IntentFilterVerificationInfo> getIntentFilterVerifications(String packageName);
-    List<IntentFilter> getAllIntentFilters(String packageName);
+    ParceledListSlice getIntentFilterVerifications(String packageName);
+    ParceledListSlice getAllIntentFilters(String packageName);
 
     boolean setDefaultBrowserPackageName(String packageName, int userId);
     String getDefaultBrowserPackageName(int userId);
diff --git a/core/java/android/content/pm/PackageParser.java b/core/java/android/content/pm/PackageParser.java
index 0588a9d..bc28ff1 100644
--- a/core/java/android/content/pm/PackageParser.java
+++ b/core/java/android/content/pm/PackageParser.java
@@ -121,6 +121,10 @@
 
     private static final int MAX_PACKAGES_PER_APK = 5;
 
+    public static final int APK_SIGNING_UNKNOWN = 0;
+    public static final int APK_SIGNING_V1 = 1;
+    public static final int APK_SIGNING_V2 = 2;
+
     // TODO: switch outError users to PackageParserException
     // TODO: refactor "codePath" to "apkPath"
 
@@ -1058,12 +1062,24 @@
         return pkg;
     }
 
+    public static int getApkSigningVersion(Package pkg) {
+        try {
+            if (ApkSignatureSchemeV2Verifier.hasSignature(pkg.baseCodePath)) {
+                return APK_SIGNING_V2;
+            }
+            return APK_SIGNING_V1;
+        } catch (IOException e) {
+        }
+        return APK_SIGNING_UNKNOWN;
+    }
+
     /**
      * Collect certificates from all the APKs described in the given package,
      * populating {@link Package#mSignatures}. Also asserts that all APK
      * contents are signed correctly and consistently.
      */
-    public static void collectCertificates(Package pkg, int parseFlags) throws PackageParserException {
+    public static void collectCertificates(Package pkg, int parseFlags)
+            throws PackageParserException {
         collectCertificatesInternal(pkg, parseFlags);
         final int childCount = (pkg.childPackages != null) ? pkg.childPackages.size() : 0;
         for (int i = 0; i < childCount; i++) {
@@ -1074,7 +1090,8 @@
         }
     }
 
-    private static void collectCertificatesInternal(Package pkg, int parseFlags) throws PackageParserException {
+    private static void collectCertificatesInternal(Package pkg, int parseFlags)
+            throws PackageParserException {
         pkg.mCertificates = null;
         pkg.mSignatures = null;
         pkg.mSigningKeys = null;
diff --git a/core/java/android/hardware/camera2/DngCreator.java b/core/java/android/hardware/camera2/DngCreator.java
index 57a080b..9478dc0 100644
--- a/core/java/android/hardware/camera2/DngCreator.java
+++ b/core/java/android/hardware/camera2/DngCreator.java
@@ -137,6 +137,11 @@
             throw new IllegalArgumentException("Orientation " + orientation +
                     " is not a valid EXIF orientation value");
         }
+        // ExifInterface and TIFF/EP spec differ on definition of
+        // "Unknown" orientation; other values map directly
+        if (orientation == ExifInterface.ORIENTATION_UNDEFINED) {
+            orientation = TAG_ORIENTATION_UNKNOWN;
+        }
         nativeSetOrientation(orientation);
         return this;
     }
@@ -443,7 +448,7 @@
     private static final String GPS_LONG_REF_WEST = "W";
 
     private static final String GPS_DATE_FORMAT_STR = "yyyy:MM:dd";
-    private static final String TIFF_DATETIME_FORMAT = "yyyy:MM:dd kk:mm:ss";
+    private static final String TIFF_DATETIME_FORMAT = "yyyy:MM:dd HH:mm:ss";
     private static final DateFormat sExifGPSDateStamp = new SimpleDateFormat(GPS_DATE_FORMAT_STR);
     private static final DateFormat sDateTimeStampFormat =
             new SimpleDateFormat(TIFF_DATETIME_FORMAT);
@@ -458,6 +463,9 @@
     private static final int DEFAULT_PIXEL_STRIDE = 2; // bytes per sample
     private static final int BYTES_PER_RGB_PIX = 3; // byts per pixel
 
+    // TIFF tag values needed to map between public API and TIFF spec
+    private static final int TAG_ORIENTATION_UNKNOWN = 9;
+
     /**
      * Offset, rowStride, and pixelStride are given in bytes.  Height and width are given in pixels.
      */
diff --git a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
index e62df3c..4c4adea 100644
--- a/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
+++ b/core/java/android/hardware/camera2/legacy/LegacyCameraDevice.java
@@ -614,14 +614,16 @@
         return LegacyExceptionUtils.throwOnError(nativeDetectSurfaceDataspace(surface));
     }
 
-    static void configureSurface(Surface surface, int width, int height,
-                                 int pixelFormat) throws BufferQueueAbandonedException {
+    static void connectSurface(Surface surface) throws BufferQueueAbandonedException {
         checkNotNull(surface);
-        checkArgumentPositive(width, "width must be positive.");
-        checkArgumentPositive(height, "height must be positive.");
 
-        LegacyExceptionUtils.throwOnError(nativeConfigureSurface(surface, width, height,
-                pixelFormat));
+        LegacyExceptionUtils.throwOnError(nativeConnectSurface(surface));
+    }
+
+    static void disconnectSurface(Surface surface) throws BufferQueueAbandonedException {
+        if (surface == null) return;
+
+        LegacyExceptionUtils.throwOnError(nativeDisconnectSurface(surface));
     }
 
     static void produceFrame(Surface surface, byte[] pixelBuffer, int width,
@@ -716,8 +718,7 @@
     private static native int nativeDetectSurfaceDimens(Surface surface,
             /*out*/int[/*2*/] dimens);
 
-    private static native int nativeConfigureSurface(Surface surface, int width, int height,
-                                                        int pixelFormat);
+    private static native int nativeConnectSurface(Surface surface);
 
     private static native int nativeProduceFrame(Surface surface, byte[] pixelBuffer, int width,
                                                     int height, int pixelFormat);
@@ -740,5 +741,7 @@
 
     private static native int nativeSetScalingMode(Surface surface, int scalingMode);
 
+    private static native int nativeDisconnectSurface(Surface surface);
+
     static native int nativeGetJpegFooterSize();
 }
diff --git a/core/java/android/hardware/camera2/legacy/RequestThreadManager.java b/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
index 1ca7ddf..e8ce3ec 100644
--- a/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
+++ b/core/java/android/hardware/camera2/legacy/RequestThreadManager.java
@@ -365,6 +365,14 @@
             mGLThreadManager.waitUntilIdle();
         }
         resetJpegSurfaceFormats(mCallbackOutputs);
+
+        for (Surface s : mCallbackOutputs) {
+            try {
+                LegacyCameraDevice.disconnectSurface(s);
+            } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) {
+                Log.w(TAG, "Surface abandoned, skipping...", e);
+            }
+        }
         mPreviewOutputs.clear();
         mCallbackOutputs.clear();
         mJpegSurfaceIds.clear();
@@ -392,6 +400,10 @@
                             mJpegSurfaceIds.add(LegacyCameraDevice.getSurfaceId(s));
                             mCallbackOutputs.add(s);
                             callbackOutputSizes.add(outSize);
+
+                            // LegacyCameraDevice is the producer of JPEG output surfaces
+                            // so LegacyCameraDevice needs to connect to the surfaces.
+                            LegacyCameraDevice.connectSurface(s);
                             break;
                         default:
                             LegacyCameraDevice.setScalingMode(s, LegacyCameraDevice.
diff --git a/core/java/android/hardware/camera2/legacy/SurfaceTextureRenderer.java b/core/java/android/hardware/camera2/legacy/SurfaceTextureRenderer.java
index bc80fc1..70bc2fd 100644
--- a/core/java/android/hardware/camera2/legacy/SurfaceTextureRenderer.java
+++ b/core/java/android/hardware/camera2/legacy/SurfaceTextureRenderer.java
@@ -401,6 +401,13 @@
 
     private void clearState() {
         mSurfaces.clear();
+        for (EGLSurfaceHolder holder : mConversionSurfaces) {
+            try {
+                LegacyCameraDevice.disconnectSurface(holder.surface);
+            } catch (LegacyExceptionUtils.BufferQueueAbandonedException e) {
+                Log.w(TAG, "Surface abandoned, skipping...", e);
+            }
+        }
         mConversionSurfaces.clear();
         mPBufferPixels = null;
         if (mSurfaceTexture != null) {
@@ -631,6 +638,9 @@
                 holder.height = surfaceSize.getHeight();
                 if (LegacyCameraDevice.needsConversion(s)) {
                     mConversionSurfaces.add(holder);
+                    // LegacyCameraDevice is the producer of surfaces if it's not handled by EGL,
+                    // so LegacyCameraDevice needs to connect to the surfaces.
+                    LegacyCameraDevice.connectSurface(s);
                 } else {
                     mSurfaces.add(holder);
                 }
diff --git a/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java b/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
index 728f723..60c7270 100644
--- a/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
+++ b/core/java/android/util/apk/ApkSignatureSchemeV2Verifier.java
@@ -75,6 +75,36 @@
     public static final int SF_ATTRIBUTE_ANDROID_APK_SIGNED_ID = 2;
 
     /**
+     * Returns {@code true} if the provided APK contains an APK Signature Scheme V2
+     * signature. The signature will not be verified.
+     */
+    public static boolean hasSignature(String apkFile) throws IOException {
+        try (RandomAccessFile apk = new RandomAccessFile(apkFile, "r")) {
+            long fileSize = apk.length();
+            if (fileSize > Integer.MAX_VALUE) {
+                return false;
+            }
+            MappedByteBuffer apkContents =
+                    apk.getChannel().map(FileChannel.MapMode.READ_ONLY, 0, fileSize);
+            // ZipUtils and APK Signature Scheme v2 verifier expect little-endian byte order.
+            apkContents.order(ByteOrder.LITTLE_ENDIAN);
+
+            final int centralDirOffset =
+                    (int) getCentralDirOffset(apkContents, getEocdOffset(apkContents));
+            // Find the APK Signing Block.
+            int apkSigningBlockOffset = findApkSigningBlock(apkContents, centralDirOffset);
+            ByteBuffer apkSigningBlock =
+                    sliceFromTo(apkContents, apkSigningBlockOffset, centralDirOffset);
+
+            // Find the APK Signature Scheme v2 Block inside the APK Signing Block.
+            findApkSignatureSchemeV2Block(apkSigningBlock);
+            return true;
+        } catch (SignatureNotFoundException e) {
+        }
+        return false;
+    }
+
+    /**
      * Verifies APK Signature Scheme v2 signatures of the provided APK and returns the certificates
      * associated with each signer.
      *
@@ -130,31 +160,8 @@
         // ZipUtils and APK Signature Scheme v2 verifier expect little-endian byte order.
         apkContents.order(ByteOrder.LITTLE_ENDIAN);
 
-        // Find the offset of ZIP End of Central Directory (EoCD)
-        int eocdOffset = ZipUtils.findZipEndOfCentralDirectoryRecord(apkContents);
-        if (eocdOffset == -1) {
-            throw new SignatureNotFoundException(
-                    "Not an APK file: ZIP End of Central Directory record not found");
-        }
-        if (ZipUtils.isZip64EndOfCentralDirectoryLocatorPresent(apkContents, eocdOffset)) {
-            throw new SignatureNotFoundException("ZIP64 APK not supported");
-        }
-        ByteBuffer eocd = sliceFromTo(apkContents, eocdOffset, apkContents.capacity());
-
-        // Look up the offset of ZIP Central Directory.
-        long centralDirOffsetLong = ZipUtils.getZipEocdCentralDirectoryOffset(eocd);
-        if (centralDirOffsetLong >= eocdOffset) {
-            throw new SignatureNotFoundException(
-                    "ZIP Central Directory offset out of range: " + centralDirOffsetLong
-                    + ". ZIP End of Central Directory offset: " + eocdOffset);
-        }
-        long centralDirSizeLong = ZipUtils.getZipEocdCentralDirectorySizeBytes(eocd);
-        if (centralDirOffsetLong + centralDirSizeLong != eocdOffset) {
-            throw new SignatureNotFoundException(
-                    "ZIP Central Directory is not immediately followed by End of Central"
-                    + " Directory");
-        }
-        int centralDirOffset = (int) centralDirOffsetLong;
+        final int eocdOffset = getEocdOffset(apkContents);
+        final int centralDirOffset = (int) getCentralDirOffset(apkContents, eocdOffset);
 
         // Find the APK Signing Block.
         int apkSigningBlockOffset = findApkSigningBlock(apkContents, centralDirOffset);
@@ -499,6 +506,43 @@
         return result;
     }
 
+    /**
+     * Finds the offset of ZIP End of Central Directory (EoCD).
+     *
+     * @throws SignatureNotFoundException If the EoCD could not be found
+     */
+    private static int getEocdOffset(ByteBuffer apkContents) throws SignatureNotFoundException {
+        int eocdOffset = ZipUtils.findZipEndOfCentralDirectoryRecord(apkContents);
+        if (eocdOffset == -1) {
+            throw new SignatureNotFoundException(
+                    "Not an APK file: ZIP End of Central Directory record not found");
+        }
+        return eocdOffset;
+    }
+
+    private static long getCentralDirOffset(ByteBuffer apkContents, int eocdOffset)
+            throws SignatureNotFoundException {
+        if (ZipUtils.isZip64EndOfCentralDirectoryLocatorPresent(apkContents, eocdOffset)) {
+            throw new SignatureNotFoundException("ZIP64 APK not supported");
+        }
+        ByteBuffer eocd = sliceFromTo(apkContents, eocdOffset, apkContents.capacity());
+
+        // Look up the offset of ZIP Central Directory.
+        long centralDirOffsetLong = ZipUtils.getZipEocdCentralDirectoryOffset(eocd);
+        if (centralDirOffsetLong >= eocdOffset) {
+            throw new SignatureNotFoundException(
+                    "ZIP Central Directory offset out of range: " + centralDirOffsetLong
+                    + ". ZIP End of Central Directory offset: " + eocdOffset);
+        }
+        long centralDirSizeLong = ZipUtils.getZipEocdCentralDirectorySizeBytes(eocd);
+        if (centralDirOffsetLong + centralDirSizeLong != eocdOffset) {
+            throw new SignatureNotFoundException(
+                    "ZIP Central Directory is not immediately followed by End of Central"
+                    + " Directory");
+        }
+        return centralDirOffsetLong;
+    }
+
     private static final int getChunkCount(int inputSizeBytes) {
         return (inputSizeBytes + CHUNK_SIZE_BYTES - 1) / CHUNK_SIZE_BYTES;
     }
diff --git a/core/java/android/widget/Editor.java b/core/java/android/widget/Editor.java
index a7b12c1..0e34067 100644
--- a/core/java/android/widget/Editor.java
+++ b/core/java/android/widget/Editor.java
@@ -2518,8 +2518,37 @@
         mPreserveDetachedSelection = true;
     }
 
-    private void replaceWithSuggestion(SuggestionInfo suggestionInfo, int spanStart, int spanEnd) {
+    private void replaceWithSuggestion(final SuggestionInfo suggestionInfo) {
         final Editable editable = (Editable) mTextView.getText();
+        if (editable.getSpanStart(suggestionInfo.mSuggestionSpan) < 0) {
+            // Suggestion span coundn't be found. Try to find a suggestion span that has the same
+            // contents.
+            final SuggestionSpan[] suggestionSpans = editable.getSpans(
+                    suggestionInfo.mSuggestionSpanStart, suggestionInfo.mSuggestionSpanEnd,
+                    SuggestionSpan.class);
+            for (final SuggestionSpan suggestionSpan : suggestionSpans) {
+                final int spanStart = editable.getSpanStart(suggestionSpan);
+                if (spanStart != suggestionInfo.mSuggestionSpanStart) {
+                    continue;
+                }
+                int spanEnd = editable.getSpanEnd(suggestionSpan);
+                if (spanEnd != suggestionInfo.mSuggestionSpanEnd) {
+                    continue;
+                }
+                if (suggestionSpan.equals(suggestionInfo.mSuggestionSpan)) {
+                    // Found.
+                    suggestionInfo.mSuggestionSpan = suggestionSpan;
+                    break;
+                }
+            }
+        }
+        final int spanStart = editable.getSpanStart(suggestionInfo.mSuggestionSpan);
+        final int spanEnd = editable.getSpanEnd(suggestionInfo.mSuggestionSpan);
+        if (spanStart < 0 || spanEnd <= spanStart) {
+            // Span has been removed
+            return;
+        }
+
         final String originalText = TextUtils.substring(editable, spanStart, spanEnd);
         // SuggestionSpans are removed by replace: save them before
         SuggestionSpan[] suggestionSpans = editable.getSpans(spanStart, spanEnd,
@@ -2593,11 +2622,7 @@
                 clear();
                 return false;
             }
-            final Spannable spannable = (Spannable) mTextView.getText();
-            final SuggestionSpan suggestionSpan =
-                    mSuggestionInfosInContextMenu[index].mSuggestionSpan;
-            replaceWithSuggestion(mSuggestionInfosInContextMenu[index],
-                    spannable.getSpanStart(suggestionSpan), spannable.getSpanEnd(suggestionSpan));
+            replaceWithSuggestion(mSuggestionInfosInContextMenu[index]);
             clear();
             return true;
         }
@@ -3028,13 +3053,19 @@
     }
 
     private static class SuggestionInfo {
-        // Range of actual suggestion within text
+        // Range of actual suggestion within mText
         int mSuggestionStart, mSuggestionEnd;
 
         // The SuggestionSpan that this TextView represents
         @Nullable
         SuggestionSpan mSuggestionSpan;
 
+        // The SuggestionSpan start position
+        int mSuggestionSpanStart;
+
+        // The SuggestionSpan end position
+        int mSuggestionSpanEnd;
+
         // The index of this suggestion inside suggestionSpan
         int mSuggestionIndex;
 
@@ -3141,6 +3172,8 @@
                     suggestionInfo.mSuggestionIndex = suggestionIndex;
                     suggestionInfo.mSuggestionStart = 0;
                     suggestionInfo.mSuggestionEnd = suggestion.length();
+                    suggestionInfo.mSuggestionSpanStart = spanStart;
+                    suggestionInfo.mSuggestionSpanEnd = spanEnd;
                     suggestionInfo.mText.replace(0, suggestionInfo.mText.length(), suggestion);
                     numberOfSuggestions++;
                     if (numberOfSuggestions >= suggestionInfos.length) {
@@ -3434,10 +3467,8 @@
                 if ((suggestionSpan.getFlags() & SuggestionSpan.FLAG_MISSPELLED) != 0) {
                     mMisspelledSpan = suggestionSpan;
                 }
-                final int spanStart = spannable.getSpanStart(suggestionSpan);
-                final int spanEnd = spannable.getSpanEnd(suggestionSpan);
-                spanUnionStart = Math.min(spanUnionStart, spanStart);
-                spanUnionEnd = Math.max(spanUnionEnd, spanEnd);
+                spanUnionStart = Math.min(spanUnionStart, suggestionInfo.mSuggestionSpanStart);
+                spanUnionEnd = Math.max(spanUnionEnd, suggestionInfo.mSuggestionSpanEnd);
             }
 
             for (int i = 0; i < mNumberOfSuggestions; i++) {
@@ -3476,8 +3507,8 @@
         private void highlightTextDifferences(SuggestionInfo suggestionInfo, int unionStart,
                 int unionEnd) {
             final Spannable text = (Spannable) mTextView.getText();
-            final int spanStart = text.getSpanStart(suggestionInfo.mSuggestionSpan);
-            final int spanEnd = text.getSpanEnd(suggestionInfo.mSuggestionSpan);
+            final int spanStart = suggestionInfo.mSuggestionSpanStart;
+            final int spanEnd = suggestionInfo.mSuggestionSpanEnd;
 
             // Adjust the start/end of the suggestion span
             suggestionInfo.mSuggestionStart = spanStart - unionStart;
@@ -3495,16 +3526,8 @@
 
         @Override
         public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-            Editable editable = (Editable) mTextView.getText();
             SuggestionInfo suggestionInfo = mSuggestionInfos[position];
-            final int spanStart = editable.getSpanStart(suggestionInfo.mSuggestionSpan);
-            final int spanEnd = editable.getSpanEnd(suggestionInfo.mSuggestionSpan);
-            if (spanStart < 0 || spanEnd <= spanStart) {
-                // Span has been removed
-                hideWithCleanUp();
-                return;
-            }
-            replaceWithSuggestion(suggestionInfo, spanStart, spanEnd);
+            replaceWithSuggestion(suggestionInfo);
             hideWithCleanUp();
         }
     }
@@ -3637,8 +3660,7 @@
         }
 
         private void updateReplaceItem(Menu menu) {
-            boolean canReplace = mTextView.isSuggestionsEnabled() && shouldOfferToShowSuggestions()
-                    && !(mTextView.isInExtractedMode() && mTextView.hasSelection());
+            boolean canReplace = mTextView.isSuggestionsEnabled() && shouldOfferToShowSuggestions();
             boolean replaceItemExists = menu.findItem(TextView.ID_REPLACE) != null;
             if (canReplace && !replaceItemExists) {
                 menu.add(Menu.NONE, TextView.ID_REPLACE, MENU_ITEM_ORDER_REPLACE,
diff --git a/core/java/android/widget/ProgressBar.java b/core/java/android/widget/ProgressBar.java
index 2099b04..72a50ec1 100644
--- a/core/java/android/widget/ProgressBar.java
+++ b/core/java/android/widget/ProgressBar.java
@@ -17,21 +17,15 @@
 package android.widget;
 
 import android.animation.ObjectAnimator;
+import android.annotation.InterpolatorRes;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
-import android.graphics.PorterDuff;
-
-import android.util.FloatProperty;
-import android.util.IntProperty;
-import android.view.accessibility.AccessibilityNodeInfo;
-import com.android.internal.R;
-
-import android.annotation.InterpolatorRes;
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.content.res.TypedArray;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
+import android.graphics.PorterDuff;
 import android.graphics.Rect;
 import android.graphics.Shader;
 import android.graphics.drawable.Animatable;
@@ -46,6 +40,7 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.AttributeSet;
+import android.util.FloatProperty;
 import android.util.MathUtils;
 import android.util.Pools.SynchronizedPool;
 import android.view.Gravity;
@@ -55,6 +50,7 @@
 import android.view.ViewHierarchyEncoder;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
+import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.animation.AlphaAnimation;
 import android.view.animation.Animation;
 import android.view.animation.AnimationUtils;
@@ -63,6 +59,7 @@
 import android.view.animation.LinearInterpolator;
 import android.view.animation.Transformation;
 import android.widget.RemoteViews.RemoteView;
+import com.android.internal.R;
 
 import java.util.ArrayList;
 
@@ -606,15 +603,30 @@
 
             if (indeterminate) {
                 // swap between indeterminate and regular backgrounds
-                mCurrentDrawable = mIndeterminateDrawable;
+                swapCurrentDrawable(mIndeterminateDrawable);
                 startAnimation();
             } else {
-                mCurrentDrawable = mProgressDrawable;
+                swapCurrentDrawable(mProgressDrawable);
                 stopAnimation();
             }
         }
     }
 
+    private void swapCurrentDrawable(Drawable newDrawable) {
+        final Drawable oldDrawable = mCurrentDrawable;
+        mCurrentDrawable = newDrawable;
+        if (oldDrawable != mCurrentDrawable) {
+            if (oldDrawable != null) {
+                oldDrawable.setVisible(false, false);
+            }
+            if (mCurrentDrawable != null) {
+                mCurrentDrawable.setVisible(
+                        getVisibility() == VISIBLE && getWindowVisibility() == VISIBLE,
+                        false);
+            }
+        }
+    }
+
     /**
      * <p>Get the drawable used to draw the progress bar in
      * indeterminate mode.</p>
@@ -654,7 +666,7 @@
             }
 
             if (mIndeterminate) {
-                mCurrentDrawable = d;
+                swapCurrentDrawable(d);
                 postInvalidate();
             }
         }
@@ -820,7 +832,7 @@
             }
 
             if (!mIndeterminate) {
-                mCurrentDrawable = d;
+                swapCurrentDrawable(d);
                 postInvalidate();
             }
 
@@ -1555,7 +1567,7 @@
      * <p>Start the indeterminate progress animation.</p>
      */
     void startAnimation() {
-        if (getVisibility() != VISIBLE) {
+        if (getVisibility() != VISIBLE || getWindowVisibility() != VISIBLE) {
             return;
         }
 
@@ -1653,14 +1665,30 @@
     protected void onVisibilityChanged(View changedView, int visibility) {
         super.onVisibilityChanged(changedView, visibility);
 
+        updateVisibility();
+    }
+
+    @Override
+    protected void onWindowVisibilityChanged(@Visibility int visibility) {
+        super.onWindowVisibilityChanged(visibility);
+
+        updateVisibility();
+    }
+
+    private void updateVisibility() {
+        final boolean isVisible = getVisibility() == VISIBLE && getWindowVisibility() == VISIBLE;
         if (mIndeterminate) {
             // let's be nice with the UI thread
-            if (visibility == GONE || visibility == INVISIBLE) {
-                stopAnimation();
-            } else {
+            if (isVisible) {
                 startAnimation();
+            } else {
+                stopAnimation();
             }
         }
+
+        if (mCurrentDrawable != null) {
+            mCurrentDrawable.setVisible(isVisible, false);
+        }
     }
 
     @Override
diff --git a/core/java/com/android/internal/util/ArrayUtils.java b/core/java/com/android/internal/util/ArrayUtils.java
index 8026949..a84a061 100644
--- a/core/java/com/android/internal/util/ArrayUtils.java
+++ b/core/java/com/android/internal/util/ArrayUtils.java
@@ -27,6 +27,7 @@
 import java.lang.reflect.Array;
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.List;
 import java.util.Objects;
 
 /**
@@ -126,6 +127,13 @@
     /**
      * Checks if given array is null or has zero elements.
      */
+    public static boolean isEmpty(@Nullable List<?> array) {
+        return array == null || array.isEmpty();
+    }
+
+    /**
+     * Checks if given array is null or has zero elements.
+     */
     public static <T> boolean isEmpty(@Nullable T[] array) {
         return array == null || array.length == 0;
     }
diff --git a/core/jni/Android.mk b/core/jni/Android.mk
index 816a2c4..623b603 100644
--- a/core/jni/Android.mk
+++ b/core/jni/Android.mk
@@ -7,7 +7,7 @@
 LOCAL_CFLAGS += -Wno-unused-parameter
 LOCAL_CFLAGS += -Wno-non-virtual-dtor
 LOCAL_CFLAGS += -Wno-maybe-uninitialized -Wno-parentheses
-#LOCAL_CFLAGS += -DHWUI_NEW_OPS
+LOCAL_CFLAGS += -DHWUI_NEW_OPS
 LOCAL_CPPFLAGS += -Wno-conversion-null
 
 ifeq ($(TARGET_ARCH), arm)
diff --git a/core/jni/android_hardware_camera2_DngCreator.cpp b/core/jni/android_hardware_camera2_DngCreator.cpp
index cb0abb6..c6baf1c 100644
--- a/core/jni/android_hardware_camera2_DngCreator.cpp
+++ b/core/jni/android_hardware_camera2_DngCreator.cpp
@@ -80,6 +80,13 @@
         return nullptr; \
     }
 
+#define BAIL_IF_EXPR_RET_NULL_SP(expr, jnienv, tagId, writer) \
+    if (expr) { \
+        jniThrowExceptionFmt(jnienv, "java/lang/IllegalArgumentException", \
+                "Invalid metadata for tag %s (%x)", (writer)->getTagName(tagId), (tagId)); \
+        return nullptr; \
+    }
+
 
 #define ANDROID_DNGCREATOR_CTX_JNI_ID     "mNativeContext"
 
@@ -195,8 +202,8 @@
 NativeContext::NativeContext(const CameraMetadata& characteristics, const CameraMetadata& result) :
         mCharacteristics(std::make_shared<CameraMetadata>(characteristics)),
         mResult(std::make_shared<CameraMetadata>(result)), mThumbnailWidth(0),
-        mThumbnailHeight(0), mOrientation(0), mThumbnailSet(false), mGpsSet(false),
-        mDescriptionSet(false), mCaptureTimeSet(false) {}
+        mThumbnailHeight(0), mOrientation(TAG_ORIENTATION_UNKNOWN), mThumbnailSet(false),
+        mGpsSet(false), mDescriptionSet(false), mCaptureTimeSet(false) {}
 
 NativeContext::~NativeContext() {}
 
@@ -1096,7 +1103,7 @@
 
     {
         // Set orientation
-        uint16_t orientation = 1; // Normal
+        uint16_t orientation = TAG_ORIENTATION_NORMAL;
         BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_ORIENTATION, 1, &orientation, TIFF_IFD_0),
                 env, TAG_ORIENTATION, writer);
     }
@@ -1138,12 +1145,27 @@
     }
 
     {
-        // Set blacklevel tags
+        // Set blacklevel tags, using dynamic black level if available
         camera_metadata_entry entry =
-                characteristics.find(ANDROID_SENSOR_BLACK_LEVEL_PATTERN);
-        BAIL_IF_EMPTY_RET_NULL_SP(entry, env, TAG_BLACKLEVEL, writer);
-        const uint32_t* blackLevel = reinterpret_cast<const uint32_t*>(entry.data.i32);
-        BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BLACKLEVEL, entry.count, blackLevel,
+                results.find(ANDROID_SENSOR_DYNAMIC_BLACK_LEVEL);
+        uint32_t blackLevelRational[8] = {0};
+        if (entry.count != 0) {
+            BAIL_IF_EXPR_RET_NULL_SP(entry.count != 4, env, TAG_BLACKLEVEL, writer);
+            for (size_t i = 0; i < entry.count; i++) {
+                blackLevelRational[i * 2] = static_cast<uint32_t>(entry.data.f[i] * 100);
+                blackLevelRational[i * 2 + 1] = 100;
+            }
+        } else {
+            // Fall back to static black level which is guaranteed
+            entry = characteristics.find(ANDROID_SENSOR_BLACK_LEVEL_PATTERN);
+            BAIL_IF_EXPR_RET_NULL_SP(entry.count != 4, env, TAG_BLACKLEVEL, writer);
+            for (size_t i = 0; i < entry.count; i++) {
+                blackLevelRational[i * 2] = static_cast<uint32_t>(entry.data.i32[i]);
+                blackLevelRational[i * 2 + 1] = 1;
+            }
+
+        }
+        BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BLACKLEVEL, 4, blackLevelRational,
                 TIFF_IFD_0), env, TAG_BLACKLEVEL, writer);
 
         uint16_t repeatDim[2] = {2, 2};
@@ -1913,8 +1935,10 @@
 
         {
             // Set bits per sample
-            uint16_t bits = BITS_PER_RGB_SAMPLE;
-            BAIL_IF_INVALID_RET_NULL_SP(writer->addEntry(TAG_BITSPERSAMPLE, 1, &bits, TIFF_IFD_0),
+            uint16_t bits[SAMPLES_PER_RGB_PIXEL];
+            for (int i = 0; i < SAMPLES_PER_RGB_PIXEL; i++) bits[i] = BITS_PER_RGB_SAMPLE;
+            BAIL_IF_INVALID_RET_NULL_SP(
+                    writer->addEntry(TAG_BITSPERSAMPLE, SAMPLES_PER_RGB_PIXEL, bits, TIFF_IFD_0),
                     env, TAG_BITSPERSAMPLE, writer);
         }
 
diff --git a/core/jni/android_hardware_camera2_legacy_LegacyCameraDevice.cpp b/core/jni/android_hardware_camera2_legacy_LegacyCameraDevice.cpp
index f1ea7ec..80f9d57 100644
--- a/core/jni/android_hardware_camera2_legacy_LegacyCameraDevice.cpp
+++ b/core/jni/android_hardware_camera2_legacy_LegacyCameraDevice.cpp
@@ -29,6 +29,7 @@
 
 #include <gui/Surface.h>
 #include <gui/IGraphicBufferProducer.h>
+#include <gui/IProducerListener.h>
 #include <ui/GraphicBuffer.h>
 #include <system/window.h>
 #include <hardware/camera3.h>
@@ -93,27 +94,17 @@
             cStep, yStride, cStride);
 }
 
-static status_t configureSurface(const sp<ANativeWindow>& anw,
-                                 int32_t width,
-                                 int32_t height,
-                                 int32_t pixelFmt,
-                                 int32_t maxBufferSlack) {
+static status_t connectSurface(const sp<Surface>& surface, int32_t maxBufferSlack) {
     status_t err = NO_ERROR;
-    err = native_window_set_buffers_dimensions(anw.get(), width, height);
-    if (err != NO_ERROR) {
-        ALOGE("%s: Failed to set native window buffer dimensions, error %s (%d).", __FUNCTION__,
+
+    err = surface->connect(NATIVE_WINDOW_API_CAMERA, /*listener*/NULL);
+    if (err != OK) {
+        ALOGE("%s: Unable to connect to surface, error %s (%d).", __FUNCTION__,
                 strerror(-err), err);
         return err;
     }
 
-    err = native_window_set_buffers_format(anw.get(), pixelFmt);
-    if (err != NO_ERROR) {
-        ALOGE("%s: Failed to set native window buffer format, error %s (%d).", __FUNCTION__,
-                strerror(-err), err);
-        return err;
-    }
-
-    err = native_window_set_usage(anw.get(), GRALLOC_USAGE_SW_WRITE_OFTEN);
+    err = native_window_set_usage(surface.get(), GRALLOC_USAGE_SW_WRITE_OFTEN);
     if (err != NO_ERROR) {
         ALOGE("%s: Failed to set native window usage flag, error %s (%d).", __FUNCTION__,
                 strerror(-err), err);
@@ -121,19 +112,17 @@
     }
 
     int minUndequeuedBuffers;
-    err = anw.get()->query(anw.get(),
-            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
-            &minUndequeuedBuffers);
+    err = static_cast<ANativeWindow*>(surface.get())->query(surface.get(),
+            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBuffers);
     if (err != NO_ERROR) {
         ALOGE("%s: Failed to get native window min undequeued buffers, error %s (%d).",
                 __FUNCTION__, strerror(-err), err);
         return err;
     }
 
-    ALOGV("%s: Setting buffer count to %d, size to (%dx%d), fmt (0x%x)", __FUNCTION__,
-          maxBufferSlack + 1 + minUndequeuedBuffers,
-          width, height, pixelFmt);
-    err = native_window_set_buffer_count(anw.get(), maxBufferSlack + 1 + minUndequeuedBuffers);
+    ALOGV("%s: Setting buffer count to %d", __FUNCTION__,
+            maxBufferSlack + 1 + minUndequeuedBuffers);
+    err = native_window_set_buffer_count(surface.get(), maxBufferSlack + 1 + minUndequeuedBuffers);
     if (err != NO_ERROR) {
         ALOGE("%s: Failed to set native window buffer count, error %s (%d).", __FUNCTION__,
                 strerror(-err), err);
@@ -509,6 +498,26 @@
     return usage;
 }
 
+static jint LegacyCameraDevice_nativeDisconnectSurface(JNIEnv* env, jobject thiz,
+          jobject surface) {
+    ALOGV("nativeDisconnectSurface");
+    if (surface == nullptr) return NO_ERROR;
+
+    sp<ANativeWindow> anw;
+    if ((anw = getNativeWindow(env, surface)) == NULL) {
+        ALOGV("Buffer queue has already been abandoned.");
+        return NO_ERROR;
+    }
+
+    status_t err = native_window_api_disconnect(anw.get(), NATIVE_WINDOW_API_CAMERA);
+    if(err != NO_ERROR) {
+        jniThrowException(env, "Ljava/lang/UnsupportedOperationException;",
+            "Error while disconnecting surface");
+        return err;
+    }
+    return NO_ERROR;
+}
+
 static jint LegacyCameraDevice_nativeDetectTextureDimens(JNIEnv* env, jobject thiz,
         jobject surfaceTexture, jintArray dimens) {
     ALOGV("nativeDetectTextureDimens");
@@ -540,15 +549,14 @@
     return NO_ERROR;
 }
 
-static jint LegacyCameraDevice_nativeConfigureSurface(JNIEnv* env, jobject thiz, jobject surface,
-        jint width, jint height, jint pixelFormat) {
-    ALOGV("nativeConfigureSurface");
-    sp<ANativeWindow> anw;
-    if ((anw = getNativeWindow(env, surface)) == NULL) {
-        ALOGE("%s: Could not retrieve native window from surface.", __FUNCTION__);
+static jint LegacyCameraDevice_nativeConnectSurface(JNIEnv* env, jobject thiz, jobject surface) {
+    ALOGV("nativeConnectSurface");
+    sp<Surface> s;
+    if ((s = getSurface(env, surface)) == NULL) {
+        ALOGE("%s: Could not retrieve surface.", __FUNCTION__);
         return BAD_VALUE;
     }
-    status_t err = configureSurface(anw, width, height, pixelFormat, CAMERA_DEVICE_BUFFER_SLACK);
+    status_t err = connectSurface(s, CAMERA_DEVICE_BUFFER_SLACK);
     if (err != NO_ERROR) {
         ALOGE("%s: Error while configuring surface %s (%d).", __FUNCTION__, strerror(-err), err);
         return err;
@@ -740,9 +748,9 @@
     { "nativeDetectSurfaceDimens",
     "(Landroid/view/Surface;[I)I",
     (void *)LegacyCameraDevice_nativeDetectSurfaceDimens },
-    { "nativeConfigureSurface",
-    "(Landroid/view/Surface;III)I",
-    (void *)LegacyCameraDevice_nativeConfigureSurface },
+    { "nativeConnectSurface",
+    "(Landroid/view/Surface;)I",
+    (void *)LegacyCameraDevice_nativeConnectSurface },
     { "nativeProduceFrame",
     "(Landroid/view/Surface;[BIII)I",
     (void *)LegacyCameraDevice_nativeProduceFrame },
@@ -773,6 +781,9 @@
     { "nativeSetScalingMode",
     "(Landroid/view/Surface;I)I",
     (void *)LegacyCameraDevice_nativeSetScalingMode },
+    { "nativeDisconnectSurface",
+    "(Landroid/view/Surface;)I",
+    (void *)LegacyCameraDevice_nativeDisconnectSurface },
 };
 
 // Get all the required offsets in java class and register native functions
diff --git a/core/res/res/values/config.xml b/core/res/res/values/config.xml
index 9a2a6eb..7857107 100644
--- a/core/res/res/values/config.xml
+++ b/core/res/res/values/config.xml
@@ -2440,6 +2440,10 @@
          flag). -->
     <bool name="config_forceWindowDrawsStatusBarBackground">true</bool>
 
+    <!-- If set, this will force the navigation bar to always be drawn with an opaque
+         background. -->
+    <bool name="config_forceNavBarAlwaysOpaque">false</bool>
+
     <!-- Default bounds [left top right bottom] on screen for picture-in-picture windows. -->
     <string translatable="false" name="config_defaultPictureInPictureBounds">"0 0 100 100"</string>
 
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index d039b5f..15521e4 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -2391,6 +2391,7 @@
 
   <java-symbol type="string" name="config_packagedKeyboardName" />
   <java-symbol type="bool" name="config_forceWindowDrawsStatusBarBackground" />
+  <java-symbol type="bool" name="config_forceNavBarAlwaysOpaque" />
   <java-symbol type="color" name="system_bar_background_semi_transparent" />
 
   <!-- EditText suggestion popup. -->
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 54b453d..70995ac 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -2,7 +2,7 @@
 include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
-HWUI_NEW_OPS := false
+HWUI_NEW_OPS := true
 
 # Enables fine-grained GLES error checking
 # If set to true, every GLES call is wrapped & error checked
diff --git a/libs/hwui/BakedOpRenderer.cpp b/libs/hwui/BakedOpRenderer.cpp
index c147384..98493d7 100644
--- a/libs/hwui/BakedOpRenderer.cpp
+++ b/libs/hwui/BakedOpRenderer.cpp
@@ -135,17 +135,7 @@
         mRenderState.stencil().disable();
     }
 
-    mCaches.clearGarbage();
-    mCaches.pathCache.trim();
-    mCaches.tessellationCache.trim();
-
-#if DEBUG_MEMORY_USAGE
-    mCaches.dumpMemoryUsage();
-#else
-    if (Properties::debugLevel & kDebugMemory) {
-        mCaches.dumpMemoryUsage();
-    }
-#endif
+    // Note: we leave FBO 0 renderable here, for post-frame-content decoration
 }
 
 void BakedOpRenderer::setViewport(uint32_t width, uint32_t height) {
@@ -179,6 +169,38 @@
     return texture;
 }
 
+void BakedOpRenderer::drawRects(const float* rects, int count, const SkPaint* paint) {
+    std::vector<Vertex> vertices;
+    vertices.reserve(count);
+    Vertex* vertex = vertices.data();
+
+    for (int index = 0; index < count; index += 4) {
+        float l = rects[index + 0];
+        float t = rects[index + 1];
+        float r = rects[index + 2];
+        float b = rects[index + 3];
+
+        Vertex::set(vertex++, l, t);
+        Vertex::set(vertex++, r, t);
+        Vertex::set(vertex++, l, b);
+        Vertex::set(vertex++, r, b);
+    }
+
+    LOG_ALWAYS_FATAL_IF(mRenderTarget.frameBufferId != 0, "decoration only supported for FBO 0");
+    // TODO: Currently assume full FBO damage, due to FrameInfoVisualizer::unionDirty.
+    // Should should scissor safely.
+    mRenderState.scissor().setEnabled(false);
+    Glop glop;
+    GlopBuilder(mRenderState, mCaches, &glop)
+            .setRoundRectClipState(nullptr)
+            .setMeshIndexedQuads(vertices.data(), count / 4)
+            .setFillPaint(*paint, 1.0f)
+            .setTransform(Matrix4::identity(), TransformFlags::None)
+            .setModelViewIdentityEmptyBounds()
+            .build();
+    mRenderState.render(glop, mRenderTarget.orthoMatrix);
+}
+
 // clears and re-fills stencil with provided rendertarget space quads,
 // and then put stencil into test mode
 void BakedOpRenderer::setupStencilQuads(std::vector<Vertex>& quadVertices,
diff --git a/libs/hwui/BakedOpRenderer.h b/libs/hwui/BakedOpRenderer.h
index 55ea935..4b65255 100644
--- a/libs/hwui/BakedOpRenderer.h
+++ b/libs/hwui/BakedOpRenderer.h
@@ -85,6 +85,16 @@
     bool offscreenRenderTarget() { return mRenderTarget.offscreenBuffer != nullptr; }
     void dirtyRenderTarget(const Rect& dirtyRect);
     bool didDraw() const { return mHasDrawn; }
+
+    uint32_t getViewportWidth() const { return mRenderTarget.viewportWidth; }
+    uint32_t getViewportHeight() const { return mRenderTarget.viewportHeight; }
+
+    // simple draw methods, to be used for end frame decoration
+    void drawRect(float left, float top, float right, float bottom, const SkPaint* paint) {
+        float ltrb[4] = { left, top, right, bottom };
+        drawRects(ltrb, 4, paint);
+    }
+    void drawRects(const float* rects, int count, const SkPaint* paint);
 private:
     void setViewport(uint32_t width, uint32_t height);
     void clearColorBuffer(const Rect& clearRect);
diff --git a/libs/hwui/ClipArea.cpp b/libs/hwui/ClipArea.cpp
index 501cbe5..afe9807 100644
--- a/libs/hwui/ClipArea.cpp
+++ b/libs/hwui/ClipArea.cpp
@@ -375,15 +375,13 @@
             serialization->rect.set(mClipRegion.getBounds());
             break;
         }
+        // TODO: this is only done for draw time, should eventually avoid for record time
+        serialization->rect.snapToPixelBoundaries();
         mLastSerialization = serialization;
     }
     return mLastSerialization;
 }
 
-inline static const Rect& getRect(const ClipBase* scb) {
-    return reinterpret_cast<const ClipRect*>(scb)->rect;
-}
-
 inline static const RectangleList& getRectList(const ClipBase* scb) {
     return reinterpret_cast<const ClipRectList*>(scb)->rectList;
 }
@@ -425,9 +423,10 @@
                 && recordedClip->mode == ClipMode::Rectangle
                 && recordedClipTransform.rectToRect())) {
             // common case - result is a single rectangle
-            auto rectClip = allocator.create<ClipRect>(getRect(recordedClip));
+            auto rectClip = allocator.create<ClipRect>(recordedClip->rect);
             recordedClipTransform.mapRect(rectClip->rect);
             rectClip->rect.doIntersect(mClipRect);
+            rectClip->rect.snapToPixelBoundaries();
             mLastResolutionResult = rectClip;
         } else if (CC_UNLIKELY(mMode == ClipMode::Region
                 || recordedClip->mode == ClipMode::Region
@@ -438,11 +437,11 @@
             case ClipMode::Rectangle:
                 if (CC_LIKELY(recordedClipTransform.rectToRect())) {
                     // simple transform, skip creating SkPath
-                    Rect resultClip(getRect(recordedClip));
+                    Rect resultClip(recordedClip->rect);
                     recordedClipTransform.mapRect(resultClip);
                     other.setRect(resultClip.toSkIRect());
                 } else {
-                    SkPath transformedRect = pathFromTransformedRectangle(getRect(recordedClip),
+                    SkPath transformedRect = pathFromTransformedRectangle(recordedClip->rect,
                             recordedClipTransform);
                     other.setPath(transformedRect, createViewportRegion());
                 }
@@ -474,6 +473,7 @@
                 regionClip->region.op(mClipRegion, other, SkRegion::kIntersect_Op);
                 break;
             }
+            // Don't need to snap, since region's in int bounds
             regionClip->rect.set(regionClip->region.getBounds());
             mLastResolutionResult = regionClip;
         } else {
@@ -484,7 +484,7 @@
             }
 
             if (recordedClip->mode == ClipMode::Rectangle) {
-                rectList.intersectWith(getRect(recordedClip), recordedClipTransform);
+                rectList.intersectWith(recordedClip->rect, recordedClipTransform);
             } else {
                 const RectangleList& other = getRectList(recordedClip);
                 for (int i = 0; i < other.getTransformedRectanglesCount(); i++) {
@@ -495,6 +495,7 @@
                 }
             }
             rectListClip->rect = rectList.calculateBounds();
+            rectListClip->rect.snapToPixelBoundaries();
             mLastResolutionResult = rectListClip;
         }
     }
@@ -505,7 +506,7 @@
     if (!clip) return; // nothing to do
 
     if (CC_LIKELY(clip->mode == ClipMode::Rectangle)) {
-        clipRectWithTransform(getRect(clip), &transform, SkRegion::kIntersect_Op);
+        clipRectWithTransform(clip->rect, &transform, SkRegion::kIntersect_Op);
     } else if (CC_LIKELY(clip->mode == ClipMode::RectangleList)) {
         auto&& rectList = getRectList(clip);
         for (int i = 0; i < rectList.getTransformedRectanglesCount(); i++) {
diff --git a/libs/hwui/FrameInfoVisualizer.cpp b/libs/hwui/FrameInfoVisualizer.cpp
index b7dd3b7..adadd32 100644
--- a/libs/hwui/FrameInfoVisualizer.cpp
+++ b/libs/hwui/FrameInfoVisualizer.cpp
@@ -15,7 +15,11 @@
  */
 #include "FrameInfoVisualizer.h"
 
+#if HWUI_NEW_OPS
+#include "BakedOpRenderer.h"
+#else
 #include "OpenGLRenderer.h"
+#endif
 #include "utils/Color.h"
 
 #include <cutils/compiler.h>
@@ -88,7 +92,7 @@
     }
 }
 
-void FrameInfoVisualizer::draw(OpenGLRenderer* canvas) {
+void FrameInfoVisualizer::draw(ContentRenderer* renderer) {
     RETURN_IF_DISABLED();
 
     if (mShowDirtyRegions) {
@@ -96,7 +100,7 @@
         if (mFlashToggle) {
             SkPaint paint;
             paint.setColor(0x7fff0000);
-            canvas->drawRect(mDirtyRegion.fLeft, mDirtyRegion.fTop,
+            renderer->drawRect(mDirtyRegion.fLeft, mDirtyRegion.fTop,
                     mDirtyRegion.fRight, mDirtyRegion.fBottom, &paint);
         }
     }
@@ -111,9 +115,9 @@
         info.markSwapBuffers();
         info.markFrameCompleted();
 
-        initializeRects(canvas->getViewportHeight(), canvas->getViewportWidth());
-        drawGraph(canvas);
-        drawThreshold(canvas);
+        initializeRects(renderer->getViewportHeight(), renderer->getViewportWidth());
+        drawGraph(renderer);
+        drawThreshold(renderer);
     }
 }
 
@@ -194,27 +198,26 @@
     }
 }
 
-void FrameInfoVisualizer::drawGraph(OpenGLRenderer* canvas) {
+void FrameInfoVisualizer::drawGraph(ContentRenderer* renderer) {
     SkPaint paint;
     for (size_t i = 0; i < Bar.size(); i++) {
         nextBarSegment(Bar[i].start, Bar[i].end);
         paint.setColor(Bar[i].color & BAR_FAST_MASK);
-        canvas->drawRects(mFastRects.get(), mNumFastRects * 4, &paint);
+        renderer->drawRects(mFastRects.get(), mNumFastRects * 4, &paint);
         paint.setColor(Bar[i].color & BAR_JANKY_MASK);
-        canvas->drawRects(mJankyRects.get(), mNumJankyRects * 4, &paint);
+        renderer->drawRects(mJankyRects.get(), mNumJankyRects * 4, &paint);
     }
 }
 
-void FrameInfoVisualizer::drawThreshold(OpenGLRenderer* canvas) {
+void FrameInfoVisualizer::drawThreshold(ContentRenderer* renderer) {
     SkPaint paint;
     paint.setColor(THRESHOLD_COLOR);
-    paint.setStrokeWidth(mThresholdStroke);
-
-    float pts[4];
-    pts[0] = 0.0f;
-    pts[1] = pts[3] = canvas->getViewportHeight() - (FRAME_THRESHOLD * mVerticalUnit);
-    pts[2] = canvas->getViewportWidth();
-    canvas->drawLines(pts, 4, &paint);
+    float yLocation = renderer->getViewportHeight() - (FRAME_THRESHOLD * mVerticalUnit);
+    renderer->drawRect(0.0f,
+            yLocation - mThresholdStroke/2,
+            renderer->getViewportWidth(),
+            yLocation + mThresholdStroke/2,
+            &paint);
 }
 
 bool FrameInfoVisualizer::consumeProperties() {
diff --git a/libs/hwui/FrameInfoVisualizer.h b/libs/hwui/FrameInfoVisualizer.h
index cf877c4..83adf19 100644
--- a/libs/hwui/FrameInfoVisualizer.h
+++ b/libs/hwui/FrameInfoVisualizer.h
@@ -28,7 +28,13 @@
 namespace android {
 namespace uirenderer {
 
+#if HWUI_NEW_OPS
+class BakedOpRenderer;
+typedef BakedOpRenderer ContentRenderer;
+#else
 class OpenGLRenderer;
+typedef OpenGLRenderer ContentRenderer;
+#endif
 
 // TODO: This is a bit awkward as it needs to match the thing in CanvasContext
 // A better abstraction here would be nice but iterators are painful
@@ -46,7 +52,7 @@
     void setDensity(float density);
 
     void unionDirty(SkRect* dirty);
-    void draw(OpenGLRenderer* canvas);
+    void draw(ContentRenderer* renderer);
 
     void dumpData(int fd);
 
@@ -56,8 +62,8 @@
 
     void initializeRects(const int baseline, const int width);
     void nextBarSegment(FrameInfoIndex start, FrameInfoIndex end);
-    void drawGraph(OpenGLRenderer* canvas);
-    void drawThreshold(OpenGLRenderer* canvas);
+    void drawGraph(ContentRenderer* renderer);
+    void drawThreshold(ContentRenderer* renderer);
 
     inline float durationMS(size_t index, FrameInfoIndex start, FrameInfoIndex end) {
         float duration = mFrameSource[index].duration(start, end) * 0.000001f;
diff --git a/libs/hwui/renderthread/CanvasContext.cpp b/libs/hwui/renderthread/CanvasContext.cpp
index 249d83f..a496b49 100644
--- a/libs/hwui/renderthread/CanvasContext.cpp
+++ b/libs/hwui/renderthread/CanvasContext.cpp
@@ -348,12 +348,26 @@
     FrameBuilder frameBuilder(mLayerUpdateQueue, dirty, frame.width(), frame.height(),
             mRenderNodes, mLightGeometry, mContentDrawBounds, &Caches::getInstance());
     mLayerUpdateQueue.clear();
-    BakedOpRenderer renderer(Caches::getInstance(), mRenderThread.renderState(),
+    auto&& caches = Caches::getInstance();
+    BakedOpRenderer renderer(caches, mRenderThread.renderState(),
             mOpaque, mLightInfo);
-    // TODO: profiler().draw(mCanvas);
     frameBuilder.replayBakedOps<BakedOpDispatcher>(renderer);
+    profiler().draw(&renderer);
     bool drew = renderer.didDraw();
 
+    // post frame cleanup
+    caches.clearGarbage();
+    caches.pathCache.trim();
+    caches.tessellationCache.trim();
+
+#if DEBUG_MEMORY_USAGE
+    mCaches.dumpMemoryUsage();
+#else
+    if (CC_UNLIKELY(Properties::debugLevel & kDebugMemory)) {
+        caches.dumpMemoryUsage();
+    }
+#endif
+
 #else
     mCanvas->prepareDirty(frame.width(), frame.height(),
             dirty.fLeft, dirty.fTop, dirty.fRight, dirty.fBottom, mOpaque);
diff --git a/libs/hwui/tests/unit/ClipAreaTests.cpp b/libs/hwui/tests/unit/ClipAreaTests.cpp
index dc2ea07..822d04f 100644
--- a/libs/hwui/tests/unit/ClipAreaTests.cpp
+++ b/libs/hwui/tests/unit/ClipAreaTests.cpp
@@ -27,7 +27,7 @@
 namespace android {
 namespace uirenderer {
 
-static Rect kViewportBounds(0, 0, 2048, 2048);
+static Rect kViewportBounds(2048, 2048);
 
 static ClipArea createClipArea() {
     ClipArea area;
@@ -140,17 +140,15 @@
 
     // rect list
     Matrix4 rotate;
-    rotate.loadRotate(2.0f);
-    area.clipRectWithTransform(Rect(200, 200), &rotate, SkRegion::kIntersect_Op);
+    rotate.loadRotate(5.0f);
+    area.clipRectWithTransform(Rect(50, 50, 150, 150), &rotate, SkRegion::kIntersect_Op);
     {
         auto serializedClip = area.serializeClip(allocator);
         ASSERT_NE(nullptr, serializedClip);
         ASSERT_EQ(ClipMode::RectangleList, serializedClip->mode);
         auto clipRectList = reinterpret_cast<const ClipRectList*>(serializedClip);
         EXPECT_EQ(2, clipRectList->rectList.getTransformedRectanglesCount());
-        EXPECT_FALSE(clipRectList->rect.isEmpty());
-        EXPECT_FLOAT_EQ(199.87817f, clipRectList->rect.right)
-            << "Right side should be clipped by rotated rect";
+        EXPECT_EQ(Rect(37, 54, 145, 163), clipRectList->rect);
         EXPECT_EQ(serializedClip, area.serializeClip(allocator))
                 << "Requery of clip on unmodified ClipArea must return same pointer.";
     }
@@ -241,5 +239,28 @@
     }
 }
 
+TEST(ClipArea, serializeIntersectedClip_snap) {
+    ClipArea area(createClipArea());
+    area.setClip(100.2, 100.4, 500.6, 500.8);
+    LinearAllocator allocator;
+
+    {
+        // no recorded clip case
+        auto resolvedClip = area.serializeIntersectedClip(allocator, nullptr, Matrix4::identity());
+        EXPECT_EQ(Rect(100, 100, 501, 501), resolvedClip->rect);
+    }
+    {
+        // recorded clip case
+        ClipRect recordedClip(Rect(100.12, 100.74));
+        Matrix4 translateScale;
+        translateScale.loadTranslate(100, 100, 0);
+        translateScale.scale(2, 3, 1); // recorded clip will have non-int coords, even after transform
+        auto resolvedClip = area.serializeIntersectedClip(allocator, &recordedClip, translateScale);
+        ASSERT_NE(nullptr, resolvedClip);
+        EXPECT_EQ(ClipMode::Rectangle, resolvedClip->mode);
+        EXPECT_EQ(Rect(100, 100, 300, 402), resolvedClip->rect);
+    }
+}
+
 } // namespace uirenderer
 } // namespace android
diff --git a/libs/hwui/tests/unit/RecordingCanvasTests.cpp b/libs/hwui/tests/unit/RecordingCanvasTests.cpp
index c39047c..d35b1f9 100644
--- a/libs/hwui/tests/unit/RecordingCanvasTests.cpp
+++ b/libs/hwui/tests/unit/RecordingCanvasTests.cpp
@@ -442,9 +442,7 @@
             // since the same clip will be computed at draw time. If such a change is made, this
             // check could be done at record time by querying the clip, or the clip could be altered
             // slightly so that it is serialized.
-            EXPECT_RECT_APPROX_EQ(Rect(58.57864, 58.57864, 341.42136, 341.42136),
-                    (reinterpret_cast<const ClipRect*>(op.localClip))->rect);
-
+            EXPECT_EQ(Rect(59, 59, 341, 341), op.localClip->rect);
             EXPECT_EQ(Rect(400, 400), op.unmappedBounds);
             expectedMatrix.loadIdentity();
             EXPECT_MATRIX_APPROX_EQ(expectedMatrix, op.localMatrix);
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index c7e96cf..8206d23 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -2147,9 +2147,10 @@
                                 }
                                 break;
                             case MSSG_RECORDING_CONFIG_CHANGE:
-                                final AudioRecordingCallback cb = (AudioRecordingCallback) msg.obj;
-                                if (cb != null) {
-                                    cb.onRecordConfigChanged();
+                                final RecordConfigChangeCallbackData cbData =
+                                        (RecordConfigChangeCallbackData) msg.obj;
+                                if (cbData.mCb != null) {
+                                    cbData.mCb.onRecordConfigChanged(cbData.mConfigs);
                                 }
                                 break;
                             default:
@@ -2734,8 +2735,10 @@
     public static abstract class AudioRecordingCallback {
         /**
          * Called whenever the device recording configuration has changed.
+         * @param configs array containing the results of
+         *      {@link AudioManager#getActiveRecordConfigurations()}.
          */
-        public void onRecordConfigChanged() {}
+        public void onRecordConfigChanged(AudioRecordConfiguration[] configs) {}
     }
 
     private static class AudioRecordingCallbackInfo {
@@ -2747,6 +2750,17 @@
         }
     }
 
+    private final static class RecordConfigChangeCallbackData {
+        final AudioRecordingCallback mCb;
+        final AudioRecordConfiguration[] mConfigs;
+
+        RecordConfigChangeCallbackData(AudioRecordingCallback cb,
+                AudioRecordConfiguration[] configs) {
+            mCb = cb;
+            mConfigs = configs;
+        }
+    }
+
     /**
      * Register a callback to be notified of audio recording changes through
      * {@link AudioRecordingCallback}
@@ -2882,14 +2896,15 @@
 
     private final IRecordingConfigDispatcher mRecCb = new IRecordingConfigDispatcher.Stub() {
 
-        public void dispatchRecordingConfigChange() {
+        public void dispatchRecordingConfigChange(AudioRecordConfiguration[] configs) {
             synchronized(mRecordCallbackLock) {
                 if (mRecordCallbackList != null) {
                     for (int i=0 ; i < mRecordCallbackList.size() ; i++) {
                         final AudioRecordingCallbackInfo arci = mRecordCallbackList.get(i);
                         if (arci.mHandler != null) {
                             final Message m = arci.mHandler.obtainMessage(
-                                    MSSG_RECORDING_CONFIG_CHANGE/*what*/, arci.mCb/*obj*/);
+                                    MSSG_RECORDING_CONFIG_CHANGE/*what*/,
+                                    new RecordConfigChangeCallbackData(arci.mCb, configs)/*obj*/);
                             arci.mHandler.sendMessage(m);
                         }
                     }
diff --git a/media/java/android/media/AudioRecordConfiguration.java b/media/java/android/media/AudioRecordConfiguration.java
index 2fc8ee8..de78a5a 100644
--- a/media/java/android/media/AudioRecordConfiguration.java
+++ b/media/java/android/media/AudioRecordConfiguration.java
@@ -16,10 +16,13 @@
 
 package android.media;
 
+import android.annotation.IntDef;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.Log;
 
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.util.ArrayList;
 import java.util.Objects;
 
@@ -53,6 +56,19 @@
         mPatchHandle = patchHandle;
     }
 
+    /** @hide */
+    @IntDef({
+        MediaRecorder.AudioSource.DEFAULT,
+        MediaRecorder.AudioSource.VOICE_UPLINK,
+        MediaRecorder.AudioSource.VOICE_DOWNLINK,
+        MediaRecorder.AudioSource.VOICE_CALL,
+        MediaRecorder.AudioSource.CAMCORDER,
+        MediaRecorder.AudioSource.VOICE_RECOGNITION,
+        MediaRecorder.AudioSource.VOICE_COMMUNICATION
+    })
+    @Retention(RetentionPolicy.SOURCE)
+    public @interface AudioSource {}
+
     /**
      * Returns the audio source being used for the recording.
      * @return one of {@link MediaRecorder.AudioSource#MIC},
@@ -63,7 +79,7 @@
      *       {@link MediaRecorder.AudioSource#VOICE_RECOGNITION},
      *       {@link MediaRecorder.AudioSource#VOICE_COMMUNICATION}.
      */
-    public int getClientAudioSource() { return mClientSource; }
+    public @AudioSource int getClientAudioSource() { return mClientSource; }
 
     /**
      * Returns the session number of the recording, see {@link AudioRecord#getAudioSessionId()}.
diff --git a/media/java/android/media/IRecordingConfigDispatcher.aidl b/media/java/android/media/IRecordingConfigDispatcher.aidl
index a5eb8b9f..eaa92ca 100644
--- a/media/java/android/media/IRecordingConfigDispatcher.aidl
+++ b/media/java/android/media/IRecordingConfigDispatcher.aidl
@@ -16,6 +16,8 @@
 
 package android.media;
 
+import android.media.AudioRecordConfiguration;
+
 /**
  * AIDL for the RecordingActivity monitor in AudioService to signal audio recording updates.
  *
@@ -23,6 +25,6 @@
  */
 oneway interface IRecordingConfigDispatcher {
 
-    void dispatchRecordingConfigChange();
+    void dispatchRecordingConfigChange(in AudioRecordConfiguration[] configs);
 
 }
diff --git a/media/java/android/media/IRingtonePlayer.aidl b/media/java/android/media/IRingtonePlayer.aidl
index 8091421..4b1e39f 100644
--- a/media/java/android/media/IRingtonePlayer.aidl
+++ b/media/java/android/media/IRingtonePlayer.aidl
@@ -18,6 +18,7 @@
 
 import android.media.AudioAttributes;
 import android.net.Uri;
+import android.os.ParcelFileDescriptor;
 import android.os.UserHandle;
 
 /**
@@ -36,4 +37,6 @@
 
     /** Return the title of the media. */
     String getTitle(in Uri uri);
+
+    ParcelFileDescriptor openRingtone(in Uri uri);
 }
diff --git a/media/java/android/media/MediaExtractor.java b/media/java/android/media/MediaExtractor.java
index b339925..177344a 100644
--- a/media/java/android/media/MediaExtractor.java
+++ b/media/java/android/media/MediaExtractor.java
@@ -28,6 +28,8 @@
 import android.net.Uri;
 import android.os.IBinder;
 
+import com.android.internal.util.Preconditions;
+
 import java.io.FileDescriptor;
 import java.io.IOException;
 import java.lang.annotation.Retention;
@@ -189,6 +191,26 @@
     }
 
     /**
+     * Sets the data source (AssetFileDescriptor) to use. It is the caller's
+     * responsibility to close the file descriptor. It is safe to do so as soon
+     * as this call returns.
+     *
+     * @param afd the AssetFileDescriptor for the file you want to extract from.
+     */
+    public final void setDataSource(@NonNull AssetFileDescriptor afd)
+            throws IOException, IllegalArgumentException, IllegalStateException {
+        Preconditions.checkNotNull(afd);
+        // Note: using getDeclaredLength so that our behavior is the same
+        // as previous versions when the content provider is returning
+        // a full file.
+        if (afd.getDeclaredLength() < 0) {
+            setDataSource(afd.getFileDescriptor());
+        } else {
+            setDataSource(afd.getFileDescriptor(), afd.getStartOffset(), afd.getDeclaredLength());
+        }
+    }
+
+    /**
      * Sets the data source (FileDescriptor) to use. It is the caller's responsibility
      * to close the file descriptor. It is safe to do so as soon as this call returns.
      *
diff --git a/media/java/android/media/MediaScanner.java b/media/java/android/media/MediaScanner.java
index 78f357f..5fd85d1 100644
--- a/media/java/android/media/MediaScanner.java
+++ b/media/java/android/media/MediaScanner.java
@@ -1042,13 +1042,13 @@
 
             if(needToSetSettings) {
                 if (notifications) {
-                    setSettingIfNotSet(Settings.System.NOTIFICATION_SOUND, tableUri, rowId);
+                    setRingtoneIfNotSet(Settings.System.NOTIFICATION_SOUND, tableUri, rowId);
                     mDefaultNotificationSet = true;
                 } else if (ringtones) {
-                    setSettingIfNotSet(Settings.System.RINGTONE, tableUri, rowId);
+                    setRingtoneIfNotSet(Settings.System.RINGTONE, tableUri, rowId);
                     mDefaultRingtoneSet = true;
                 } else if (alarms) {
-                    setSettingIfNotSet(Settings.System.ALARM_ALERT, tableUri, rowId);
+                    setRingtoneIfNotSet(Settings.System.ALARM_ALERT, tableUri, rowId);
                     mDefaultAlarmSet = true;
                 }
             }
@@ -1063,18 +1063,18 @@
                     pathFilenameStart + filenameLength == path.length();
         }
 
-        private void setSettingIfNotSet(String settingName, Uri uri, long rowId) {
-
-            if(wasSettingAlreadySet(settingName)) {
+        private void setRingtoneIfNotSet(String settingName, Uri uri, long rowId) {
+            if (wasRingtoneAlreadySet(settingName)) {
                 return;
             }
 
             ContentResolver cr = mContext.getContentResolver();
             String existingSettingValue = Settings.System.getString(cr, settingName);
             if (TextUtils.isEmpty(existingSettingValue)) {
-                // Set the setting to the given URI
-                Settings.System.putString(cr, settingName,
-                        ContentUris.withAppendedId(uri, rowId).toString());
+                final Uri settingUri = Settings.System.getUriFor(settingName);
+                final Uri ringtoneUri = ContentUris.withAppendedId(uri, rowId);
+                RingtoneManager.setActualDefaultRingtoneUri(mContext,
+                        RingtoneManager.getDefaultType(settingUri), ringtoneUri);
             }
             Settings.System.putInt(cr, settingSetIndicatorName(settingName), 1);
         }
@@ -1107,7 +1107,7 @@
         return base + "_set";
     }
 
-    private boolean wasSettingAlreadySet(String name) {
+    private boolean wasRingtoneAlreadySet(String name) {
         ContentResolver cr = mContext.getContentResolver();
         String indicatorName = settingSetIndicatorName(name);
         try {
@@ -1134,9 +1134,9 @@
             selectionArgs = new String[] { "" };
         }
 
-        mDefaultRingtoneSet = wasSettingAlreadySet(Settings.System.RINGTONE);
-        mDefaultNotificationSet = wasSettingAlreadySet(Settings.System.NOTIFICATION_SOUND);
-        mDefaultAlarmSet = wasSettingAlreadySet(Settings.System.ALARM_ALERT);
+        mDefaultRingtoneSet = wasRingtoneAlreadySet(Settings.System.RINGTONE);
+        mDefaultNotificationSet = wasRingtoneAlreadySet(Settings.System.NOTIFICATION_SOUND);
+        mDefaultAlarmSet = wasRingtoneAlreadySet(Settings.System.ALARM_ALERT);
 
         // Tell the provider to not delete the file.
         // If the file is truly gone the delete is unnecessary, and we want to avoid
diff --git a/media/java/android/media/RingtoneManager.java b/media/java/android/media/RingtoneManager.java
index feb490d..4977391 100644
--- a/media/java/android/media/RingtoneManager.java
+++ b/media/java/android/media/RingtoneManager.java
@@ -30,7 +30,9 @@
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Environment;
+import android.os.ParcelFileDescriptor;
 import android.os.Process;
+import android.os.RemoteException;
 import android.provider.MediaStore;
 import android.provider.Settings;
 import android.provider.Settings.System;
@@ -223,9 +225,9 @@
      */
     public static final int URI_COLUMN_INDEX = 2;
 
-    private Activity mActivity;
-    private Context mContext;
-    
+    private final Activity mActivity;
+    private final Context mContext;
+
     private Cursor mCursor;
 
     private int mType = TYPE_RINGTONE;
@@ -246,7 +248,8 @@
      * @param activity The activity used to get a managed cursor.
      */
     public RingtoneManager(Activity activity) {
-        mContext = mActivity = activity;
+        mActivity = activity;
+        mContext = activity;
         setType(mType);
     }
 
@@ -258,6 +261,7 @@
      * @param context The context to used to get a cursor.
      */
     public RingtoneManager(Context context) {
+        mActivity = null;
         mContext = context;
         setType(mType);
     }
@@ -271,7 +275,6 @@
      * @see #EXTRA_RINGTONE_TYPE           
      */
     public void setType(int type) {
-
         if (mCursor != null) {
             throw new IllegalStateException(
                     "Setting filter columns should be done before querying for ringtones.");
@@ -656,18 +659,19 @@
      * @see #getActualDefaultRingtoneUri(Context, int)
      */
     public static void setActualDefaultRingtoneUri(Context context, int type, Uri ringtoneUri) {
+        final ContentResolver resolver = context.getContentResolver();
+
         String setting = getSettingForType(type);
         if (setting == null) return;
-        Settings.System.putString(context.getContentResolver(), setting,
+        Settings.System.putString(resolver, setting,
                 ringtoneUri != null ? ringtoneUri.toString() : null);
 
         // Stream selected ringtone into cache so it's available for playback
         // when CE storage is still locked
         if (ringtoneUri != null) {
-            final ContentResolver cr = context.getContentResolver();
             final Uri cacheUri = getCacheForType(type);
-            try (InputStream in = cr.openInputStream(ringtoneUri);
-                    OutputStream out = cr.openOutputStream(cacheUri)) {
+            try (InputStream in = openRingtone(context, ringtoneUri);
+                    OutputStream out = resolver.openOutputStream(cacheUri)) {
                 Streams.copy(in, out);
             } catch (IOException e) {
                 Log.w(TAG, "Failed to cache ringtone: " + e);
@@ -675,6 +679,28 @@
         }
     }
 
+    /**
+     * Try opening the given ringtone locally first, but failover to
+     * {@link IRingtonePlayer} if we can't access it directly. Typically happens
+     * when process doesn't hold
+     * {@link android.Manifest.permission#READ_EXTERNAL_STORAGE}.
+     */
+    private static InputStream openRingtone(Context context, Uri uri) throws IOException {
+        final ContentResolver resolver = context.getContentResolver();
+        try {
+            return resolver.openInputStream(uri);
+        } catch (SecurityException | IOException e) {
+            Log.w(TAG, "Failed to open directly; attempting failover: " + e);
+            final IRingtonePlayer player = context.getSystemService(AudioManager.class)
+                    .getRingtonePlayer();
+            try {
+                return new ParcelFileDescriptor.AutoCloseInputStream(player.openRingtone(uri));
+            } catch (Exception e2) {
+                throw new IOException(e2);
+            }
+        }
+    }
+
     private static String getSettingForType(int type) {
         if ((type & TYPE_RINGTONE) != 0) {
             return Settings.System.RINGTONE;
diff --git a/media/java/android/media/session/MediaSessionLegacyHelper.java b/media/java/android/media/session/MediaSessionLegacyHelper.java
index c61d7ad..95cb8ae 100644
--- a/media/java/android/media/session/MediaSessionLegacyHelper.java
+++ b/media/java/android/media/session/MediaSessionLegacyHelper.java
@@ -154,8 +154,8 @@
                     metadata.getString(MediaMetadata.METADATA_KEY_WRITER));
         }
         if (metadata.containsKey(MediaMetadata.METADATA_KEY_YEAR)) {
-            oldMetadata.putString(String.valueOf(MediaMetadataRetriever.METADATA_KEY_YEAR),
-                    metadata.getString(MediaMetadata.METADATA_KEY_YEAR));
+            oldMetadata.putLong(String.valueOf(MediaMetadataRetriever.METADATA_KEY_YEAR),
+                    metadata.getLong(MediaMetadata.METADATA_KEY_YEAR));
         }
         return oldMetadata;
     }
diff --git a/packages/DocumentsUI/perf-tests/Android.mk b/packages/DocumentsUI/perf-tests/Android.mk
index c83094e..11c163b 100644
--- a/packages/DocumentsUI/perf-tests/Android.mk
+++ b/packages/DocumentsUI/perf-tests/Android.mk
@@ -10,8 +10,8 @@
     ../tests/src/com/android/documentsui/DocumentsProviderHelper.java \
     ../tests/src/com/android/documentsui/StubProvider.java
 
-LOCAL_JAVA_LIBRARIES := android.test.runner
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-v4 mockito-target ub-uiautomator
+LOCAL_JAVA_LIBRARIES := android-support-v4 android.test.runner
+LOCAL_STATIC_JAVA_LIBRARIES := mockito-target ub-uiautomator
 
 LOCAL_PACKAGE_NAME := DocumentsUIPerfTests
 LOCAL_INSTRUMENTATION_FOR := DocumentsUI
diff --git a/packages/DocumentsUI/res/drawable/ic_breadcrumb_arrow_down.xml b/packages/DocumentsUI/res/drawable/ic_breadcrumb_arrow_down.xml
new file mode 100644
index 0000000..199a308
--- /dev/null
+++ b/packages/DocumentsUI/res/drawable/ic_breadcrumb_arrow_down.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rotate xmlns:android="http://schemas.android.com/apk/res/android"
+        android:fromDegrees="90"
+        android:toDegrees="90"
+        android:pivotX="50%"
+        android:pivotY="50%"
+        android:drawable="@drawable/ic_breadcrumb_arrow">
+</rotate>
\ No newline at end of file
diff --git a/packages/DocumentsUI/res/layout/drawer_layout.xml b/packages/DocumentsUI/res/layout/drawer_layout.xml
index 065102b..b65c5a0 100644
--- a/packages/DocumentsUI/res/layout/drawer_layout.xml
+++ b/packages/DocumentsUI/res/layout/drawer_layout.xml
@@ -46,6 +46,8 @@
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginStart="4dp"
+                    android:popupTheme="?actionBarPopupTheme"
+                    android:background="@android:color/transparent"
                     android:overlapAnchor="true" />
 
             </com.android.documentsui.DocumentsToolbar>
diff --git a/packages/DocumentsUI/res/layout/fixed_layout.xml b/packages/DocumentsUI/res/layout/fixed_layout.xml
index 84a928d..deb0894 100644
--- a/packages/DocumentsUI/res/layout/fixed_layout.xml
+++ b/packages/DocumentsUI/res/layout/fixed_layout.xml
@@ -44,6 +44,8 @@
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_marginStart="4dp"
+                android:popupTheme="?actionBarPopupTheme"
+                android:background="@android:color/transparent"
                 android:overlapAnchor="true" />
 
         </com.android.documentsui.DocumentsToolbar>
diff --git a/packages/DocumentsUI/res/layout/item_subdir.xml b/packages/DocumentsUI/res/layout/item_subdir.xml
index b8251d1..ffe4afe 100644
--- a/packages/DocumentsUI/res/layout/item_subdir.xml
+++ b/packages/DocumentsUI/res/layout/item_subdir.xml
@@ -24,16 +24,6 @@
     android:orientation="horizontal"
     android:baselineAligned="false">
 
-    <ImageView
-        android:id="@+id/subdir"
-        android:layout_width="24dp"
-        android:layout_height="24dp"
-        android:paddingEnd="8dp"
-        android:scaleType="centerInside"
-        android:visibility="gone"
-        android:src="@drawable/ic_subdirectory_arrow"
-        android:contentDescription="@null" />
-
     <TextView
         android:id="@android:id/title"
         android:layout_width="0dp"
diff --git a/packages/DocumentsUI/res/layout/item_subdir_title.xml b/packages/DocumentsUI/res/layout/item_subdir_title.xml
index de6c523..8d0d807 100644
--- a/packages/DocumentsUI/res/layout/item_subdir_title.xml
+++ b/packages/DocumentsUI/res/layout/item_subdir_title.xml
@@ -28,6 +28,7 @@
         android:singleLine="true"
         android:ellipsize="end"
         android:textAlignment="viewStart"
+        android:drawablePadding="12dp"
+        android:drawableRight="@drawable/ic_breadcrumb_arrow_down"
         android:textAppearance="@android:style/TextAppearance.DeviceDefault.Widget.ActionBar.Title" />
-
 </LinearLayout>
diff --git a/packages/DocumentsUI/res/layout/single_pane_layout.xml b/packages/DocumentsUI/res/layout/single_pane_layout.xml
index 235d22d..7b7e229 100644
--- a/packages/DocumentsUI/res/layout/single_pane_layout.xml
+++ b/packages/DocumentsUI/res/layout/single_pane_layout.xml
@@ -43,6 +43,8 @@
                 android:id="@+id/stack"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
+                android:popupTheme="?actionBarPopupTheme"
+                android:background="@android:color/transparent"
                 android:layout_marginStart="4dp"
                 android:overlapAnchor="true" />
 
diff --git a/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java b/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
index 4cba135..c520204 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/NavigationView.java
@@ -220,17 +220,14 @@
                         .inflate(R.layout.item_subdir, parent, false);
             }
 
-            final ImageView subdir = (ImageView) convertView.findViewById(R.id.subdir);
             final TextView title = (TextView) convertView.findViewById(android.R.id.title);
             final DocumentInfo doc = getItem(position);
 
             if (position == 0) {
                 final RootInfo root = mEnv.getCurrentRoot();
                 title.setText(root.title);
-                subdir.setVisibility(View.GONE);
             } else {
                 title.setText(doc.displayName);
-                subdir.setVisibility(View.VISIBLE);
             }
 
             return convertView;
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
index 8b619b6..0831dbf 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/ListDocumentHolder.java
@@ -52,13 +52,14 @@
         super(context, parent, R.layout.item_doc_list);
 
         mTitle = (TextView) itemView.findViewById(android.R.id.title);
-        mDetails = (LinearLayout) itemView.findViewById(R.id.line2);
         mDate = (TextView) itemView.findViewById(R.id.date);
         mSize = (TextView) itemView.findViewById(R.id.size);
         mSummary = (TextView) itemView.findViewById(android.R.id.summary);
         mIconMime = (ImageView) itemView.findViewById(R.id.icon_mime);
         mIconThumb = (ImageView) itemView.findViewById(R.id.icon_thumb);
         mIconCheck = (ImageView) itemView.findViewById(R.id.icon_check);
+        // Warning: mDetails view doesn't exists in layout-sw720dp-land layout
+        mDetails = (LinearLayout) itemView.findViewById(R.id.line2);
 
         mIconHelper = iconHelper;
     }
@@ -110,11 +111,11 @@
         mTitle.setVisibility(View.VISIBLE);
 
 
-        // Note, we don't show any details for any directory...ever.
+        boolean hasDetails = false;
         if (isDirectory) {
-            mDetails.setVisibility(View.GONE);
+            // Note, we don't show any details for any directory...ever.
+            hasDetails = false;
         } else {
-            boolean hasDetails = false;
             if (docSummary != null) {
                 hasDetails = true;
                 mSummary.setText(docSummary);
@@ -136,8 +137,11 @@
                 mSize.setText(Formatter.formatFileSize(mContext, docSize));
             } else {
                 mSize.setVisibility(View.GONE);
-                mDetails.setVisibility(View.GONE);
             }
+        }
+
+        // mDetails view doesn't exists in layout-sw720dp-land layout
+        if (mDetails != null) {
             mDetails.setVisibility(hasDetails ? View.VISIBLE : View.GONE);
         }
     }
diff --git a/packages/DocumentsUI/tests/Android.mk b/packages/DocumentsUI/tests/Android.mk
index b65ac98..3983f78 100644
--- a/packages/DocumentsUI/tests/Android.mk
+++ b/packages/DocumentsUI/tests/Android.mk
@@ -7,8 +7,8 @@
 
 LOCAL_SRC_FILES := $(call all-java-files-under, src)
 
-LOCAL_JAVA_LIBRARIES := android.test.runner
-LOCAL_STATIC_JAVA_LIBRARIES := android-support-v4 mockito-target ub-uiautomator
+LOCAL_JAVA_LIBRARIES := android-support-v4 android.test.runner
+LOCAL_STATIC_JAVA_LIBRARIES := mockito-target ub-uiautomator
 
 LOCAL_PACKAGE_NAME := DocumentsUITests
 LOCAL_INSTRUMENTATION_FOR := DocumentsUI
diff --git a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
index 409f6a7..b1d42e7 100644
--- a/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
+++ b/packages/Keyguard/src/com/android/keyguard/KeyguardSecurityContainer.java
@@ -519,6 +519,9 @@
     @Override
     public void showPromptReason(int reason) {
         if (mCurrentSecuritySelection != SecurityMode.None) {
+            if (reason != PROMPT_REASON_NONE) {
+                Log.i(TAG, "Strong auth required, reason: " + reason);
+            }
             getSecurityView(mCurrentSecuritySelection).showPromptReason(reason);
         }
     }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/DocumentLoader.java b/packages/MtpDocumentsProvider/src/com/android/mtp/DocumentLoader.java
index 044a061..0705214 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/DocumentLoader.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/DocumentLoader.java
@@ -276,7 +276,7 @@
         static final int STATE_ERROR = 2;
 
         final MtpDatabase mDatabase;
-        int[] mOperationsSupported;
+        final int[] mOperationsSupported;
         final Identifier mIdentifier;
         final int[] mObjectHandles;
         Date mLastNotified;
@@ -285,6 +285,8 @@
 
         LoaderTask(MtpDatabase database, int[] operationsSupported, Identifier identifier,
                 int[] objectHandles) {
+            Preconditions.checkNotNull(operationsSupported);
+            Preconditions.checkNotNull(objectHandles);
             mDatabase = database;
             mOperationsSupported = operationsSupported;
             mIdentifier = identifier;
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
index c031f34..7211253 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
@@ -440,7 +440,7 @@
         if (DEBUG) {
             Log.d(TAG, "Close device " + deviceId);
         }
-        getDeviceToolkit(deviceId).mDocumentLoader.close();
+        getDeviceToolkit(deviceId).close();
         mDeviceToolkits.remove(deviceId);
         mMtpManager.closeDevice(deviceId);
         if (mDeviceToolkits.size() == 0) {
@@ -496,7 +496,7 @@
         return cursor;
     }
 
-    private static class DeviceToolkit {
+    private static class DeviceToolkit implements AutoCloseable {
         public final PipeManager mPipeManager;
         public final DocumentLoader mDocumentLoader;
         public final MtpDeviceRecord mDeviceRecord;
@@ -509,6 +509,12 @@
             mDocumentLoader = new DocumentLoader(record, manager, resolver, database);
             mDeviceRecord = record;
         }
+
+        @Override
+        public void close() throws InterruptedException {
+            mPipeManager.close();
+            mDocumentLoader.close();
+        }
     }
 
     private class AppFuseCallback implements AppFuse.Callback {
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpManager.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpManager.java
index 1966e61..0202343 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpManager.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpManager.java
@@ -143,7 +143,12 @@
             throws IOException {
         final MtpDevice device = getDevice(deviceId);
         synchronized (device) {
-            return device.getObjectHandles(storageId, 0 /* all format */, parentObjectHandle);
+            final int[] handles =
+                    device.getObjectHandles(storageId, 0 /* all format */, parentObjectHandle);
+            if (handles == null) {
+                throw new IOException("Failed to fetch object handles.");
+            }
+            return handles;
         }
     }
 
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java b/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
index 73042c4..c10a65e 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/PipeManager.java
@@ -26,8 +26,14 @@
 import java.io.IOException;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
+import java.util.concurrent.TimeUnit;
 
 class PipeManager {
+    /**
+     * Milliseconds we wait for background thread when pausing.
+     */
+    private final static long AWAIT_TERMINATION_TIMEOUT = 2000;
+
     final ExecutorService mExecutor;
     final MtpDatabase mDatabase;
 
@@ -203,7 +209,8 @@
         }
     }
 
-    void close() {
-        mExecutor.shutdown();
+    boolean close() throws InterruptedException {
+        mExecutor.shutdownNow();
+        return mExecutor.awaitTermination(AWAIT_TERMINATION_TIMEOUT, TimeUnit.MILLISECONDS);
     }
 }
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
index 3dfa4ad..d6ad0f3 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
@@ -596,7 +596,7 @@
                 0,
                 "Device A",
                 "device key",
-                true /* unopened */,
+                true /* opened */,
                 new MtpRoot[] {
                     new MtpRoot(
                             0 /* deviceId */,
@@ -606,7 +606,7 @@
                             2048 /* total space */,
                             "" /* no volume identifier */)
                 },
-                null,
+                OPERATIONS_SUPPORTED,
                 null));
 
         final String[] names = strings("Directory A", "Directory B", "Directory C");
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
index 919ac39..cdddd81 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/PipeManagerTest.java
@@ -45,6 +45,11 @@
         mPipeManager = new PipeManager(mDatabase, mExecutor);
     }
 
+    @Override
+    protected void tearDown() throws Exception {
+        assertTrue(mPipeManager.close());
+    }
+
     public void testReadDocument_basic() throws Exception {
         mtpManager.setImportFileBytes(0, 1, HELLO_BYTES);
         final ParcelFileDescriptor descriptor = mPipeManager.readDocument(
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/TestMtpManager.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/TestMtpManager.java
index 5e0ee1e..5171bd2 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/TestMtpManager.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/TestMtpManager.java
@@ -106,7 +106,7 @@
         mDevices.put(
                 deviceId,
                 new MtpDeviceRecord(device.deviceId, device.name, device.deviceKey, false,
-                        device.roots, null, null));
+                        device.roots, device.operationsSupported, device.eventsSupported));
     }
 
     @Override
diff --git a/packages/SettingsLib/src/com/android/settingslib/drawer/TileUtils.java b/packages/SettingsLib/src/com/android/settingslib/drawer/TileUtils.java
index 2dfdfda..418b138 100644
--- a/packages/SettingsLib/src/com/android/settingslib/drawer/TileUtils.java
+++ b/packages/SettingsLib/src/com/android/settingslib/drawer/TileUtils.java
@@ -41,7 +41,7 @@
 public class TileUtils {
 
     private static final boolean DEBUG = false;
-    private static final boolean DEBUG_TIMING = true;
+    private static final boolean DEBUG_TIMING = false;
 
     private static final String LOG_TAG = "TileUtils";
 
diff --git a/packages/SystemUI/res/color/notification_guts_buttons.xml b/packages/SystemUI/res/color/notification_guts_buttons.xml
new file mode 100644
index 0000000..f7a4ee9
--- /dev/null
+++ b/packages/SystemUI/res/color/notification_guts_buttons.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_checked="true"
+          android:color="@*android:color/material_deep_teal_500" />
+    <item android:color="@android:color/black"
+          android:alpha=".87" />
+</selector>
\ No newline at end of file
diff --git a/packages/SystemUI/res/drawable/tv_pip_overlay_background.xml b/packages/SystemUI/res/drawable/tv_pip_overlay_background.xml
new file mode 100644
index 0000000..e247dec
--- /dev/null
+++ b/packages/SystemUI/res/drawable/tv_pip_overlay_background.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.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <gradient
+        android:startColor="#B2000000"
+        android:endColor="#00000000"
+        android:angle="90"/>
+</shape>
diff --git a/packages/SystemUI/res/layout/notification_guts.xml b/packages/SystemUI/res/layout/notification_guts.xml
index 4b0c834..1ab6bf9 100644
--- a/packages/SystemUI/res/layout/notification_guts.xml
+++ b/packages/SystemUI/res/layout/notification_guts.xml
@@ -63,29 +63,32 @@
             android:id="@+id/importance_buttons"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:paddingTop="8dp"
-            android:paddingBottom="8dip"
+            android:paddingTop="4dp"
+            android:paddingBottom="16dip"
             android:paddingEnd="8dp" >
         <RadioButton
                 android:id="@+id/silent_importance"
                 android:layout_width="wrap_content"
                 android:layout_height="48dp"
+                android:paddingStart="32dp"
                 android:text="@string/show_silently"
-                style="@style/TextAppearance.NotificationGuts.Primary"
-                android:buttonTint="#858383" />
+                style="@style/TextAppearance.NotificationGuts.Radio"
+                android:buttonTint="@color/notification_guts_buttons" />
         <RadioButton
                 android:id="@+id/block_importance"
                 android:layout_width="wrap_content"
                 android:layout_height="48dp"
+                android:paddingStart="32dp"
                 android:text="@string/block"
-                style="@style/TextAppearance.NotificationGuts.Primary"
-                android:buttonTint="#858383" />
+                style="@style/TextAppearance.NotificationGuts.Radio"
+                android:buttonTint="@color/notification_guts_buttons" />
         <RadioButton
                 android:id="@+id/reset_importance"
                 android:layout_width="wrap_content"
                 android:layout_height="48dp"
-                style="@style/TextAppearance.NotificationGuts.Primary"
-                android:buttonTint="#858383" />
+                android:paddingStart="32dp"
+                style="@style/TextAppearance.NotificationGuts.Radio"
+                android:buttonTint="@color/notification_guts_buttons" />
     </RadioGroup>
     <!-- Importance slider -->
     <LinearLayout
diff --git a/packages/SystemUI/res/layout/tv_pip_overlay.xml b/packages/SystemUI/res/layout/tv_pip_overlay.xml
index ebd362c..40c6fa1 100644
--- a/packages/SystemUI/res/layout/tv_pip_overlay.xml
+++ b/packages/SystemUI/res/layout/tv_pip_overlay.xml
@@ -24,12 +24,13 @@
     <TextView
         android:id="@+id/guide_overlay"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+        android:layout_height="32dp"
         android:layout_alignParentBottom="true"
-        android:padding="3dp"
-        android:textSize="13sp"
-        android:textColor="#111111"
-        android:background="#99EEEEEE"
+        android:textSize="14sp"
+        android:textColor="#EEEEEE"
+        android:fontFamily="sans-serif"
+        android:background="@drawable/tv_pip_overlay_background"
+        android:gravity="center"
         android:text="@string/pip_hold_home" />
     <LinearLayout
         android:id="@+id/guide_buttons"
diff --git a/packages/SystemUI/res/values/strings_tv.xml b/packages/SystemUI/res/values/strings_tv.xml
index 59cfb1e..c7fb0ec 100644
--- a/packages/SystemUI/res/values/strings_tv.xml
+++ b/packages/SystemUI/res/values/strings_tv.xml
@@ -30,7 +30,7 @@
     <!-- Button to close PIP overlay menu on PIP UI -->
     <string name="pip_cancel" translatable="false">Cancel</string>
     <!-- Overlay text on PIP -->
-    <string name="pip_hold_home" translatable="false">Hold HOME to control PIP</string>
+    <string name="pip_hold_home" translatable="false">Hold <b>HOME</b> to control PIP</string>
     <!-- Picture-in-Picture onboarding screen -->
     <eat-comment />
     <!-- Description for onboarding screen. -->
diff --git a/packages/SystemUI/res/values/styles.xml b/packages/SystemUI/res/values/styles.xml
index 11df681..89890d6 100644
--- a/packages/SystemUI/res/values/styles.xml
+++ b/packages/SystemUI/res/values/styles.xml
@@ -323,6 +323,10 @@
         <item name="android:textSize">16sp</item>
     </style>
 
+    <style name="TextAppearance.NotificationGuts.Radio">
+        <item name="android:alpha">.87</item>
+    </style>
+
     <style name="TextAppearance.NotificationGuts.Button">
         <item name="android:textSize">14sp</item>
         <item name="android:textAllCaps">true</item>
diff --git a/packages/SystemUI/src/com/android/systemui/media/RingtonePlayer.java b/packages/SystemUI/src/com/android/systemui/media/RingtonePlayer.java
index f39f302..ab612dd 100644
--- a/packages/SystemUI/src/com/android/systemui/media/RingtonePlayer.java
+++ b/packages/SystemUI/src/com/android/systemui/media/RingtonePlayer.java
@@ -16,8 +16,10 @@
 
 package com.android.systemui.media;
 
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.database.Cursor;
 import android.media.AudioAttributes;
 import android.media.IAudioService;
 import android.media.IRingtonePlayer;
@@ -25,15 +27,20 @@
 import android.net.Uri;
 import android.os.Binder;
 import android.os.IBinder;
+import android.os.ParcelFileDescriptor;
 import android.os.Process;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
+import android.provider.MediaStore;
+import android.provider.MediaStore.Audio.AudioColumns;
 import android.util.Log;
 
+import com.android.internal.util.Preconditions;
 import com.android.systemui.SystemUI;
 
 import java.io.FileDescriptor;
+import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
 
@@ -180,6 +187,34 @@
             return Ringtone.getTitle(getContextForUser(user), uri,
                     false /*followSettingsUri*/, false /*allowRemote*/);
         }
+
+        @Override
+        public ParcelFileDescriptor openRingtone(Uri uri) {
+            final UserHandle user = Binder.getCallingUserHandle();
+            final ContentResolver resolver = getContextForUser(user).getContentResolver();
+
+            // Only open the requested Uri if it's a well-known ringtone or
+            // other sound from the platform media store, otherwise this opens
+            // up arbitrary access to any file on external storage.
+            if (uri.toString().startsWith(MediaStore.Audio.Media.EXTERNAL_CONTENT_URI.toString())) {
+                try (Cursor c = resolver.query(uri, new String[] {
+                        MediaStore.Audio.AudioColumns.IS_RINGTONE,
+                        MediaStore.Audio.AudioColumns.IS_ALARM,
+                        MediaStore.Audio.AudioColumns.IS_NOTIFICATION
+                }, null, null, null)) {
+                    if (c.moveToFirst()) {
+                        if (c.getInt(0) != 0 || c.getInt(1) != 0 || c.getInt(2) != 0) {
+                            try {
+                                return resolver.openFileDescriptor(uri, "r");
+                            } catch (IOException e) {
+                                throw new SecurityException(e);
+                            }
+                        }
+                    }
+                }
+            }
+            throw new SecurityException("Uri is not ringtone, alarm, or notification: " + uri);
+        }
     };
 
     private Context getContextForUser(UserHandle user) {
diff --git a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
index 8ccf60d..24b45cc 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/PagedTileLayout.java
@@ -167,6 +167,11 @@
         }
     };
 
+    public int getColumnCount() {
+        if (mPages.size() == 0) return 0;
+        return mPages.get(0).mColumns;
+    }
+
     public static class TilePage extends TileLayout {
         private int mMaxRows = 3;
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
index c643d67..6137349 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSAnimator.java
@@ -16,6 +16,7 @@
 
 import android.util.Log;
 import android.view.View;
+import android.view.View.OnAttachStateChangeListener;
 import android.view.View.OnLayoutChangeListener;
 import android.view.animation.PathInterpolator;
 import android.widget.TextView;
@@ -25,14 +26,20 @@
 import com.android.systemui.qs.TouchAnimator.Builder;
 import com.android.systemui.qs.TouchAnimator.Listener;
 import com.android.systemui.statusbar.phone.QSTileHost;
+import com.android.systemui.tuner.TunerService;
+import com.android.systemui.tuner.TunerService.Tunable;
 
 import java.util.ArrayList;
 import java.util.Collection;
 
-public class QSAnimator implements Callback, PageListener, Listener, OnLayoutChangeListener {
+public class QSAnimator implements Callback, PageListener, Listener, OnLayoutChangeListener,
+        OnAttachStateChangeListener, Tunable {
 
     private static final String TAG = "QSAnimator";
 
+    private static final String ALLOW_FANCY_ANIMATION = "sysui_qs_fancy_anim";
+    private static final String MOVE_FULL_ROWS = "sysui_qs_move_whole_rows";
+
     public static final PathInterpolator TRANSLATION_Y_INTERPOLATOR =
             new PathInterpolator(.1f, .3f, 1, 1);
 
@@ -44,34 +51,77 @@
     private final QSPanel mQsPanel;
     private final QSContainer mQsContainer;
 
+    private PagedTileLayout mPagedLayout;
+
     private boolean mOnFirstPage = true;
     private TouchAnimator mFirstPageAnimator;
     private TouchAnimator mFirstPageDelayedAnimator;
     private TouchAnimator mTranslationYAnimator;
     private TouchAnimator mNonfirstPageAnimator;
 
+    private boolean mOnKeyguard;
+
+    private boolean mAllowFancy;
+    private boolean mFullRows;
+    private int mNumQuickTiles;
+
     public QSAnimator(QSContainer container, QuickQSPanel quickPanel, QSPanel panel) {
         mQsContainer = container;
         mQuickQsPanel = quickPanel;
         mQsPanel = panel;
+        mQsPanel.addOnAttachStateChangeListener(this);
         container.addOnLayoutChangeListener(this);
         QSTileLayout tileLayout = mQsPanel.getTileLayout();
         if (tileLayout instanceof PagedTileLayout) {
-            ((PagedTileLayout) tileLayout).setPageListener(this);
+            mPagedLayout = ((PagedTileLayout) tileLayout);
+            mPagedLayout.setPageListener(this);
         } else {
             Log.w(TAG, "QS Not using page layout");
         }
     }
 
+    public void setOnKeyguard(boolean onKeyguard) {
+        mOnKeyguard = onKeyguard;
+        if (mOnKeyguard) {
+            clearAnimationState();
+        }
+    }
+
     public void setHost(QSTileHost qsh) {
         qsh.addCallback(this);
     }
 
     @Override
+    public void onViewAttachedToWindow(View v) {
+        TunerService.get(mQsContainer.getContext()).addTunable(this, ALLOW_FANCY_ANIMATION,
+                MOVE_FULL_ROWS, QuickQSPanel.NUM_QUICK_TILES);
+    }
+
+    @Override
+    public void onViewDetachedFromWindow(View v) {
+        TunerService.get(mQsContainer.getContext()).removeTunable(this);
+    }
+
+    @Override
+    public void onTuningChanged(String key, String newValue) {
+        if (ALLOW_FANCY_ANIMATION.equals(key)) {
+            mAllowFancy = newValue == null || Integer.parseInt(newValue) != 0;
+            if (!mAllowFancy) {
+                clearAnimationState();
+            }
+        } else if (MOVE_FULL_ROWS.equals(key)) {
+            mFullRows = newValue != null && Integer.parseInt(newValue) != 0;
+        } else if (QuickQSPanel.NUM_QUICK_TILES.equals(key)) {
+            mNumQuickTiles = QuickQSPanel.getNumQuickTiles(mQsContainer.getContext());
+            clearAnimationState();
+        }
+        updateAnimators();
+    }
+
+    @Override
     public void onPageChanged(boolean isFirst) {
         if (mOnFirstPage == isFirst) return;
         if (!isFirst) {
-            setPosition(1);
             clearAnimationState();
         }
         mOnFirstPage = isFirst;
@@ -85,6 +135,7 @@
         int count = 0;
         int[] loc1 = new int[2];
         int[] loc2 = new int[2];
+        int lastYDiff = 0;
         firstPageDelayedBuilder.setStartDelay(EXPANDED_TILE_DELAY);
         firstPageBuilder.setListener(this);
         translationYBuilder.setInterpolator(TRANSLATION_Y_INTERPOLATOR);
@@ -92,18 +143,20 @@
         firstPageDelayedBuilder.addFloat(mQsPanel.getTileLayout(), "alpha", 0, 1);
         mAllViews.clear();
         mTopFiveQs.clear();
+        mAllViews.add((View) mQsPanel.getTileLayout());
         for (QSTile<?> tile : tiles) {
             QSTileBaseView tileView = mQsPanel.getTileView(tile);
             final TextView label = ((QSTileView) tileView).getLabel();
-            if (count++ < 5) {
+            final View tileIcon = tileView.getIcon();
+            if (count < mNumQuickTiles && mAllowFancy) {
                 // Quick tiles.
                 QSTileBaseView quickTileView = mQuickQsPanel.getTileView(tile);
-                final View tileIcon = tileView.getIcon();
 
                 getRelativePosition(loc1, quickTileView.getIcon(), mQsContainer);
                 getRelativePosition(loc2, tileIcon, mQsContainer);
                 final int xDiff = loc2[0] - loc1[0];
                 final int yDiff = loc2[1] - loc1[1];
+                lastYDiff = yDiff;
                 // Move the quick tile right from its location to the new one.
                 firstPageBuilder.addFloat(quickTileView, "translationX", 0, xDiff);
                 translationYBuilder.addFloat(quickTileView, "translationY", 0, yDiff);
@@ -119,20 +172,38 @@
 
                 mTopFiveQs.add(tileIcon);
                 mAllViews.add(tileIcon);
+                mAllViews.add(label);
                 mAllViews.add(quickTileView);
+            } else if (mFullRows && isIconInAnimatedRow(count)) {
+                firstPageBuilder.addFloat(tileView, "translationY", mQsPanel.getHeight(), 0);
+                translationYBuilder.addFloat(label, "translationY", -lastYDiff, 0);
+                translationYBuilder.addFloat(tileIcon, "translationY", -lastYDiff, 0);
+                mAllViews.add(tileIcon);
+                mAllViews.add(label);
             }
             mAllViews.add(tileView);
             mAllViews.add(label);
+            count++;
         }
-        mFirstPageAnimator = firstPageBuilder.build();
-        mFirstPageDelayedAnimator = firstPageDelayedBuilder.build();
-        mTranslationYAnimator = translationYBuilder.build();
+        if (mAllowFancy) {
+            mFirstPageAnimator = firstPageBuilder.build();
+            mFirstPageDelayedAnimator = firstPageDelayedBuilder.build();
+            mTranslationYAnimator = translationYBuilder.build();
+        }
         mNonfirstPageAnimator = new TouchAnimator.Builder()
                 .addFloat(mQuickQsPanel, "alpha", 1, 0)
                 .setEndDelay(.5f)
                 .build();
     }
 
+    private boolean isIconInAnimatedRow(int count) {
+        if (mPagedLayout == null) {
+            return false;
+        }
+        final int columnCount = mPagedLayout.getColumnCount();
+        return count < ((mNumQuickTiles + columnCount - 1) / columnCount) * columnCount;
+    }
+
     private void getRelativePosition(int[] loc1, View view, View parent) {
         loc1[0] = 0 + view.getWidth() / 2;
         loc1[1] = 0;
@@ -148,7 +219,10 @@
 
     public void setPosition(float position) {
         if (mFirstPageAnimator == null) return;
-        if (mOnFirstPage) {
+        if (mOnKeyguard) {
+            return;
+        }
+        if (mOnFirstPage && mAllowFancy) {
             mQuickQsPanel.setAlpha(1);
             mFirstPageAnimator.setPosition(position);
             mFirstPageDelayedAnimator.setPosition(position);
@@ -186,12 +260,17 @@
     private void clearAnimationState() {
         final int N = mAllViews.size();
         mQuickQsPanel.setAlpha(0);
+        mQuickQsPanel.setVisibility(View.VISIBLE);
         for (int i = 0; i < N; i++) {
             View v = mAllViews.get(i);
             v.setAlpha(1);
             v.setTranslationX(1);
             v.setTranslationY(1);
         }
+        final int N2 = mTopFiveQs.size();
+        for (int i = 0; i < N2; i++) {
+            mTopFiveQs.get(i).setVisibility(View.VISIBLE);
+        }
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java b/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
index c59da8d..c0c1e4d 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QSContainer.java
@@ -156,6 +156,7 @@
     public void setKeyguardShowing(boolean keyguardShowing) {
         if (DEBUG) Log.d(TAG, "setKeyguardShowing " + keyguardShowing);
         mKeyguardShowing = keyguardShowing;
+        mQSAnimator.setOnKeyguard(keyguardShowing);
         updateQsState();
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
index 8b826ee..f8a57d0 100644
--- a/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
+++ b/packages/SystemUI/src/com/android/systemui/qs/QuickQSPanel.java
@@ -26,6 +26,8 @@
 import com.android.systemui.R;
 import com.android.systemui.qs.QSTile.SignalState;
 import com.android.systemui.qs.QSTile.State;
+import com.android.systemui.tuner.TunerService;
+import com.android.systemui.tuner.TunerService.Tunable;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -35,6 +37,8 @@
  */
 public class QuickQSPanel extends QSPanel {
 
+    public static final String NUM_QUICK_TILES = "sysui_qqs_count";
+
     private int mMaxTiles;
     private QSPanel mFullPanel;
     private View mHeader;
@@ -52,6 +56,18 @@
     }
 
     @Override
+    protected void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        TunerService.get(mContext).addTunable(mNumTiles, NUM_QUICK_TILES);
+    }
+
+    @Override
+    protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        TunerService.get(mContext).removeTunable(mNumTiles);
+    }
+
+    @Override
     protected void createCustomizePanel() {
         // No customizing from the header.
     }
@@ -86,6 +102,7 @@
 
     public void setMaxTiles(int maxTiles) {
         mMaxTiles = maxTiles;
+        setTiles(mHost.getTiles());
     }
 
     @Override
@@ -114,6 +131,17 @@
         super.setTiles(quickTiles);
     }
 
+    private final Tunable mNumTiles = new Tunable() {
+        @Override
+        public void onTuningChanged(String key, String newValue) {
+            setMaxTiles(getNumQuickTiles(mContext));
+        }
+    };
+
+    public static int getNumQuickTiles(Context context) {
+        return TunerService.get(context).getValue(NUM_QUICK_TILES, 5);
+    }
+
     private static class HeaderTileLayout extends LinearLayout implements QSTileLayout {
 
         private final Space mEndSpacer;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/Recents.java b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
index f5ae351..54bf68b 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/Recents.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/Recents.java
@@ -513,8 +513,9 @@
      * Handle Recents activity visibility changed.
      */
     public final void onBusEvent(final RecentsVisibilityChangedEvent event) {
-        int processUser = event.systemServicesProxy.getProcessUser();
-        if (event.systemServicesProxy.isSystemUser(processUser)) {
+        SystemServicesProxy ssp = Recents.getSystemServices();
+        int processUser = ssp.getProcessUser();
+        if (ssp.isSystemUser(processUser)) {
             mImpl.onVisibilityChanged(event.applicationContext, event.visible);
         } else {
             postToSystemUser(new Runnable() {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index a2934d74..cd1a27f 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -55,7 +55,7 @@
 import com.android.systemui.recents.events.activity.LaunchTaskFailedEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskSucceededEvent;
 import com.android.systemui.recents.events.activity.ShowHistoryEvent;
-import com.android.systemui.recents.events.activity.TaskStackUpdatedEvent;
+import com.android.systemui.recents.events.activity.MultiWindowStateChangedEvent;
 import com.android.systemui.recents.events.activity.ToggleRecentsEvent;
 import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent;
 import com.android.systemui.recents.events.component.ScreenPinningRequestEvent;
@@ -97,6 +97,7 @@
     private long mLastTabKeyEventTime;
     private boolean mFinishedOnStartup;
     private boolean mIgnoreAltTabRelease;
+    private boolean mIsVisible;
 
     // Top level views
     private RecentsView mRecentsView;
@@ -174,59 +175,6 @@
         }
     };
 
-    /** Updates the set of recent tasks */
-    void updateRecentsTasks() {
-        // If AlternateRecentsComponent has preloaded a load plan, then use that to prevent
-        // reconstructing the task stack
-        RecentsTaskLoader loader = Recents.getTaskLoader();
-        RecentsTaskLoadPlan plan = RecentsImpl.consumeInstanceLoadPlan();
-        if (plan == null) {
-            plan = loader.createLoadPlan(this);
-        }
-
-        // Start loading tasks according to the load plan
-        RecentsConfiguration config = Recents.getConfiguration();
-        RecentsActivityLaunchState launchState = config.getLaunchState();
-        if (!plan.hasTasks()) {
-            loader.preloadTasks(plan, -1, launchState.launchedFromHome);
-        }
-        RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
-        loadOpts.runningTaskId = launchState.launchedToTaskId;
-        loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks;
-        loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails;
-        loader.loadTasks(this, plan, loadOpts);
-
-        TaskStack stack = plan.getTaskStack();
-        mRecentsView.setTaskStack(stack);
-
-        // Animate the SystemUI scrims into view
-        Task launchTarget = stack.getLaunchTarget();
-        int taskCount = stack.getTaskCount();
-        int launchTaskIndexInStack = launchTarget != null
-                ? stack.indexOfStackTask(launchTarget)
-                : 0;
-        boolean hasNavBarScrim = (taskCount > 0) && !config.hasTransposedNavBar;
-        boolean animateNavBarScrim = !launchState.launchedWhileDocking;
-        mScrimViews.prepareEnterRecentsAnimation(hasNavBarScrim, animateNavBarScrim);
-
-        // Keep track of whether we launched from the nav bar button or via alt-tab
-        if (launchState.launchedWithAltTab) {
-            MetricsLogger.count(this, "overview_trigger_alttab", 1);
-        } else {
-            MetricsLogger.count(this, "overview_trigger_nav_btn", 1);
-        }
-        // Keep track of whether we launched from an app or from home
-        if (launchState.launchedFromApp) {
-            MetricsLogger.count(this, "overview_source_app", 1);
-            // If from an app, track the stack index of the app in the stack (for affiliated tasks)
-            MetricsLogger.histogram(this, "overview_source_app_index", launchTaskIndexInStack);
-        } else {
-            MetricsLogger.count(this, "overview_source_home", 1);
-        }
-        // Keep track of the total stack task count
-        MetricsLogger.histogram(this, "overview_task_count", taskCount);
-    }
-
     /**
      * Dismisses the history view back into the stack view.
      */
@@ -345,6 +293,7 @@
 
         // Set the Recents layout
         setContentView(R.layout.recents);
+        takeKeyEvents(true);
         mRecentsView = (RecentsView) findViewById(R.id.recents_view);
         mRecentsView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE |
                 View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
@@ -382,45 +331,12 @@
     }
 
     @Override
-    protected void onNewIntent(Intent intent) {
-        super.onNewIntent(intent);
-        setIntent(intent);
-    }
-
-    @Override
     protected void onStart() {
         super.onStart();
 
-        // Update the recent tasks
-        updateRecentsTasks();
-
-        // If this is a new instance from a configuration change, then we have to manually trigger
-        // the enter animation state, or if recents was relaunched by AM, without going through
-        // the normal mechanisms
-        RecentsConfiguration config = Recents.getConfiguration();
-        RecentsActivityLaunchState launchState = config.getLaunchState();
-        boolean wasLaunchedByAm = !launchState.launchedFromHome &&
-                !launchState.launchedFromApp;
-        if (launchState.launchedHasConfigurationChanged || wasLaunchedByAm) {
-            EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent());
-        }
-
         // Notify that recents is now visible
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, true));
-
+        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, true));
         MetricsLogger.visible(this, MetricsEvent.OVERVIEW_ACTIVITY);
-
-        mRecentsView.getViewTreeObserver().addOnPreDrawListener(
-                new ViewTreeObserver.OnPreDrawListener() {
-
-            @Override
-            public boolean onPreDraw() {
-                mRecentsView.getViewTreeObserver().removeOnPreDrawListener(this);
-                EventBus.getDefault().post(new RecentsDrawnEvent());
-                return true;
-            }
-        });
     }
 
     @Override
@@ -430,26 +346,91 @@
     }
 
     @Override
-    protected void onPause() {
-        super.onPause();
+    protected void onResume() {
+        super.onResume();
 
-        // Stop the fast-toggle dozer
-        mIterateTrigger.stopDozing();
+        // If the Recents component has preloaded a load plan, then use that to prevent
+        // reconstructing the task stack
+        RecentsTaskLoader loader = Recents.getTaskLoader();
+        RecentsTaskLoadPlan loadPlan = RecentsImpl.consumeInstanceLoadPlan();
+        if (loadPlan == null) {
+            loadPlan = loader.createLoadPlan(this);
+        }
+
+        // Start loading tasks according to the load plan
+        RecentsConfiguration config = Recents.getConfiguration();
+        RecentsActivityLaunchState launchState = config.getLaunchState();
+        if (!loadPlan.hasTasks()) {
+            loader.preloadTasks(loadPlan, -1, launchState.launchedFromHome);
+        }
+
+        RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
+        loadOpts.runningTaskId = launchState.launchedToTaskId;
+        loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks;
+        loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails;
+        loader.loadTasks(this, loadPlan, loadOpts);
+        TaskStack stack = loadPlan.getTaskStack();
+        mRecentsView.onResume(mIsVisible, stack);
+
+        // Animate the SystemUI scrims into view
+        Task launchTarget = stack.getLaunchTarget();
+        int taskCount = stack.getTaskCount();
+        int launchTaskIndexInStack = launchTarget != null
+                ? stack.indexOfStackTask(launchTarget)
+                : 0;
+        boolean hasNavBarScrim = (taskCount > 0) && !config.hasTransposedNavBar;
+        boolean animateNavBarScrim = !launchState.launchedWhileDocking;
+        mScrimViews.prepareEnterRecentsAnimation(hasNavBarScrim, animateNavBarScrim);
+
+        // If this is a new instance from a configuration change, then we have to manually trigger
+        // the enter animation state, or if recents was relaunched by AM, without going through
+        // the normal mechanisms
+        boolean wasLaunchedByAm = !launchState.launchedFromHome &&
+                !launchState.launchedFromApp;
+        if (launchState.launchedHasConfigurationChanged || wasLaunchedByAm) {
+            EventBus.getDefault().send(new EnterRecentsWindowAnimationCompletedEvent());
+        }
+
+        mRecentsView.getViewTreeObserver().addOnPreDrawListener(
+                new ViewTreeObserver.OnPreDrawListener() {
+
+                    @Override
+                    public boolean onPreDraw() {
+                        mRecentsView.getViewTreeObserver().removeOnPreDrawListener(this);
+                        EventBus.getDefault().post(new RecentsDrawnEvent());
+                        return true;
+                    }
+                });
+
+        // Keep track of whether we launched from the nav bar button or via alt-tab
+        if (launchState.launchedWithAltTab) {
+            MetricsLogger.count(this, "overview_trigger_alttab", 1);
+        } else {
+            MetricsLogger.count(this, "overview_trigger_nav_btn", 1);
+        }
+
+        // Keep track of whether we launched from an app or from home
+        if (launchState.launchedFromApp) {
+            MetricsLogger.count(this, "overview_source_app", 1);
+            // If from an app, track the stack index of the app in the stack (for affiliated tasks)
+            MetricsLogger.histogram(this, "overview_source_app_index", launchTaskIndexInStack);
+        } else {
+            MetricsLogger.count(this, "overview_source_home", 1);
+        }
+
+        // Keep track of the total stack task count
+        MetricsLogger.histogram(this, "overview_task_count", taskCount);
+
+        // After we have resumed, set the visible state until the next onStop() call
+        mIsVisible = true;
     }
 
     @Override
-    protected void onStop() {
-        super.onStop();
+    protected void onPause() {
+        super.onPause();
 
-        // Reset some states
         mIgnoreAltTabRelease = false;
-        if (RecentsDebugFlags.Static.EnableHistory && mRecentsView.isHistoryVisible()) {
-            EventBus.getDefault().send(new HideHistoryEvent(false /* animate */));
-        }
-
-        // Notify that recents is now hidden
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, false));
+        mIterateTrigger.stopDozing();
 
         // Workaround for b/22542869, if the RecentsActivity is started again, but without going
         // through SystemUI, we need to reset the config launch flags to ensure that we do not
@@ -457,7 +438,20 @@
         RecentsConfiguration config = Recents.getConfiguration();
         RecentsActivityLaunchState launchState = config.getLaunchState();
         launchState.reset();
+    }
 
+    @Override
+    protected void onStop() {
+        super.onStop();
+
+        // Only hide the history if Recents is completely hidden
+        if (RecentsDebugFlags.Static.EnableHistory && mRecentsView.isHistoryVisible()) {
+            EventBus.getDefault().send(new HideHistoryEvent(false /* animate */));
+        }
+
+        // Notify that recents is now hidden
+        mIsVisible = false;
+        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, false));
         MetricsLogger.hidden(this, MetricsEvent.OVERVIEW_ACTIVITY);
     }
 
@@ -525,16 +519,22 @@
     public void onMultiWindowChanged(boolean inMultiWindow) {
         super.onMultiWindowChanged(inMultiWindow);
         EventBus.getDefault().send(new ConfigurationChangedEvent());
+
+        // Reload the task stack completely
+        RecentsConfiguration config = Recents.getConfiguration();
+        RecentsActivityLaunchState launchState = config.getLaunchState();
         RecentsTaskLoader loader = Recents.getTaskLoader();
-        RecentsTaskLoadPlan.Options launchOpts = new RecentsTaskLoadPlan.Options();
-        launchOpts.loadIcons = false;
-        launchOpts.loadThumbnails = false;
-        launchOpts.onlyLoadForCache = true;
         RecentsTaskLoadPlan loadPlan = loader.createLoadPlan(this);
-        loader.preloadTasks(loadPlan, -1, false);
-        loader.loadTasks(this, loadPlan, launchOpts);
-        EventBus.getDefault().send(new TaskStackUpdatedEvent(loadPlan.getTaskStack(),
-                inMultiWindow));
+        loader.preloadTasks(loadPlan, -1 /* topTaskId */, false /* isTopTaskHome */);
+
+        RecentsTaskLoadPlan.Options loadOpts = new RecentsTaskLoadPlan.Options();
+        loadOpts.numVisibleTasks = launchState.launchedNumVisibleTasks;
+        loadOpts.numVisibleTaskThumbnails = launchState.launchedNumVisibleThumbnails;
+        loader.loadTasks(this, loadPlan, loadOpts);
+
+        mRecentsView.onResume(mIsVisible, loadPlan.getTaskStack());
+
+        EventBus.getDefault().send(new MultiWindowStateChangedEvent(inMultiWindow));
     }
 
     @Override
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index 1458d7b..ac23f44 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -602,7 +602,7 @@
                 com.android.internal.R.dimen.navigation_bar_width);
         mTaskBarHeight = res.getDimensionPixelSize(
                 R.dimen.recents_task_bar_height);
-        mDummyStackView = new TaskStackView(mContext, new TaskStack());
+        mDummyStackView = new TaskStackView(mContext);
         mHeaderBar = (TaskViewHeader) inflater.inflate(R.layout.recents_task_view_header,
                 null, false);
     }
@@ -615,8 +615,7 @@
      *                               is not already bound (can be expensive)
      * @param stack the stack to initialize the stack layout with
      */
-    private void updateHeaderBarLayout(boolean tryAndBindSearchWidget,
-            TaskStack stack) {
+    private void updateHeaderBarLayout(boolean tryAndBindSearchWidget, TaskStack stack) {
         RecentsConfiguration config = Recents.getConfiguration();
         SystemServicesProxy ssp = Recents.getSystemServices();
         Rect systemInsets = new Rect();
@@ -640,14 +639,15 @@
                 mSearchBarBounds, mTaskStackBounds);
 
         // Rebind the header bar and draw it for the transition
-        TaskStackLayoutAlgorithm algo = mDummyStackView.getStackAlgorithm();
+        TaskStackLayoutAlgorithm stackLayout = mDummyStackView.getStackAlgorithm();
         Rect taskStackBounds = new Rect(mTaskStackBounds);
-        algo.setSystemInsets(systemInsets);
+        stackLayout.setSystemInsets(systemInsets);
         if (stack != null) {
-            algo.initialize(taskStackBounds,
+            stackLayout.initialize(taskStackBounds,
                     TaskStackLayoutAlgorithm.StackState.getStackStateForStack(stack));
+            mDummyStackView.setTasks(stack, false /* notifyStackChanges */);
         }
-        Rect taskViewBounds = algo.getUntransformedTaskViewBounds();
+        Rect taskViewBounds = stackLayout.getUntransformedTaskViewBounds();
         if (!taskViewBounds.equals(mLastTaskViewBounds)) {
             mLastTaskViewBounds.set(taskViewBounds);
 
@@ -705,7 +705,6 @@
         updateHeaderBarLayout(false /* tryAndBindSearchWidget */, stack);
 
         // Update the destination rect
-        mDummyStackView.updateLayoutForStack(stack);
         final Task toTask = new Task();
         final TaskViewTransform toTransform = getThumbnailTransitionTransform(stackView, toTask);
         ForegroundThread.getHandler().postAtFrontOfQueue(new Runnable() {
@@ -887,7 +886,6 @@
         updateHeaderBarLayout(false /* tryAndBindSearchWidget */, stack);
 
         // Prepare the dummy stack for the transition
-        mDummyStackView.updateLayoutForStack(stack);
         TaskStackLayoutAlgorithm.VisibilityReport stackVr =
                 mDummyStackView.computeStackVisibilityReport();
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/MultiWindowStateChangedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/MultiWindowStateChangedEvent.java
new file mode 100644
index 0000000..19245d9
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/activity/MultiWindowStateChangedEvent.java
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.recents.events.activity;
+
+import com.android.systemui.recents.events.EventBus;
+
+/**
+ * This is sent by the activity whenever the multi-window state has changed.
+ */
+public class MultiWindowStateChangedEvent extends EventBus.Event {
+
+    public final boolean inMultiWindow;
+
+    public MultiWindowStateChangedEvent(boolean inMultiWindow) {
+        this.inMultiWindow = inMultiWindow;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/component/RecentsVisibilityChangedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/component/RecentsVisibilityChangedEvent.java
index 4140bcd..8843eb4 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/component/RecentsVisibilityChangedEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/component/RecentsVisibilityChangedEvent.java
@@ -19,21 +19,18 @@
 import android.content.Context;
 
 import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.misc.SystemServicesProxy;
 
 /**
- * This is sent when the visibility of the RecentsActivity for the current user changes.
+ * This is sent when the visibility of the RecentsActivity for the current user changes.  Handlers
+ * of this event should not alter the UI, as the activity may still be visible.
  */
 public class RecentsVisibilityChangedEvent extends EventBus.Event {
 
     public final Context applicationContext;
-    public final SystemServicesProxy systemServicesProxy;
     public final boolean visible;
 
-    public RecentsVisibilityChangedEvent(Context context, SystemServicesProxy systemServicesProxy,
-            boolean visible) {
+    public RecentsVisibilityChangedEvent(Context context, boolean visible) {
         this.applicationContext = context.getApplicationContext();
-        this.systemServicesProxy = systemServicesProxy;
         this.visible = visible;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
index abcb563..6ae07fc 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoadPlan.java
@@ -212,8 +212,7 @@
 
         // Initialize the stacks
         mStack = new TaskStack();
-        mStack.setTasks(allTasks, false /* notifyStackChanges */);
-        mStack.createAffiliatedGroupings(mContext);
+        mStack.setTasks(mContext, allTasks, false /* notifyStackChanges */);
     }
 
     /**
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
index e5d4f1b..b5a5949 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/Task.java
@@ -100,11 +100,7 @@
 
         @Override
         public String toString() {
-            return "Task.Key: " + id + ", "
-                    + "s: " + stackId + ", "
-                    + "u: " + userId + ", "
-                    + "lat: " + lastActiveTime + ", "
-                    + getComponent().getPackageName();
+            return "t" + id + ", s" + stackId + ", u" + userId;
         }
 
         private void updateHashCode() {
@@ -204,7 +200,9 @@
         this.isDockable = isDockable;
     }
 
-    /** Copies the other task. */
+    /**
+     * Copies the metadata from another task, but retains the current callbacks.
+     */
     public void copyFrom(Task o) {
         this.key = o.key;
         this.group = o.group;
@@ -300,11 +298,6 @@
 
     @Override
     public String toString() {
-        String groupAffiliation = "no group";
-        if (group != null) {
-            groupAffiliation = Integer.toString(group.affiliation);
-        }
-        return "Task (" + groupAffiliation + "): " + key +
-                " [" + super.toString() + "]";
+        return "[" + key.toString() + "] " + title;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
index 1f91dce..4d1c552 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/TaskStack.java
@@ -92,15 +92,6 @@
         }
     }
 
-    /**
-     * Resets the task list, but does not remove the filter.
-     */
-    void reset() {
-        mTasks.clear();
-        mFilteredTasks.clear();
-        mTaskIndices.clear();
-    }
-
     /** Removes the task filter and returns the previous touch state */
     void removeFilter() {
         mFilter = null;
@@ -481,15 +472,6 @@
         mCb = cb;
     }
 
-    /** Resets this TaskStack. */
-    public void reset() {
-        mCb = null;
-        mStackTaskList.reset();
-        mHistoryTaskList.reset();
-        mGroups.clear();
-        mAffinitiesGroups.clear();
-    }
-
     /**
      * Moves the given task to either the front of the freeform workspace or the stack.
      */
@@ -556,12 +538,12 @@
      * @param tasks the new set of tasks to replace the current set.
      * @param notifyStackChanges whether or not to callback on specific changes to the list of tasks.
      */
-    public void setTasks(List<Task> tasks, boolean notifyStackChanges) {
+    public void setTasks(Context context, List<Task> tasks, boolean notifyStackChanges) {
         // Compute a has set for each of the tasks
         ArrayMap<Task.TaskKey, Task> currentTasksMap = createTaskKeyMapFromList(mRawTaskList);
         ArrayMap<Task.TaskKey, Task> newTasksMap = createTaskKeyMapFromList(tasks);
-
-        ArrayList<Task> newTasks = new ArrayList<>();
+        ArrayList<Task> addedTasks = new ArrayList<>();
+        ArrayList<Task> allTasks = new ArrayList<>();
 
         // Disable notifications if there are no callbacks
         if (mCb == null) {
@@ -570,10 +552,13 @@
 
         // Remove any tasks that no longer exist
         int taskCount = mRawTaskList.size();
-        for (int i = 0; i < taskCount; i++) {
+        for (int i = taskCount - 1; i >= 0; i--) {
             Task task = mRawTaskList.get(i);
             if (!newTasksMap.containsKey(task.key)) {
                 if (notifyStackChanges) {
+                    // If we are notifying, then remove the task now, otherwise the raw task list
+                    // will be reset at the end of this method
+                    removeTask(task, AnimationProps.IMMEDIATE);
                     mCb.onStackTaskRemoved(this, task, i == (taskCount - 1), null,
                             AnimationProps.IMMEDIATE);
                 }
@@ -584,26 +569,28 @@
         // Add any new tasks
         taskCount = tasks.size();
         for (int i = 0; i < taskCount; i++) {
-            Task task = tasks.get(i);
-            if (!currentTasksMap.containsKey(task.key)) {
-                if (notifyStackChanges) {
-                    mCb.onStackTaskAdded(this, task);
-                }
-                newTasks.add(task);
-            } else {
-                newTasks.add(currentTasksMap.get(task.key));
+            Task newTask = tasks.get(i);
+            Task currentTask = currentTasksMap.get(newTask.key);
+            if (currentTask == null && notifyStackChanges) {
+                addedTasks.add(newTask);
+            } else if (currentTask != null) {
+                // The current task has bound callbacks, so just copy the data from the new task
+                // state and add it back into the list
+                currentTask.copyFrom(newTask);
+                newTask = currentTask;
             }
+            allTasks.add(newTask);
         }
 
         // Sort all the tasks to ensure they are ordered correctly
-        Collections.sort(newTasks, FREEFORM_LAST_ACTIVE_TIME_COMPARATOR);
+        Collections.sort(allTasks, FREEFORM_LAST_ACTIVE_TIME_COMPARATOR);
 
         // Filter out the historical tasks from this new list
         ArrayList<Task> stackTasks = new ArrayList<>();
         ArrayList<Task> historyTasks = new ArrayList<>();
-        int newTaskCount = newTasks.size();
+        int newTaskCount = allTasks.size();
         for (int i = 0; i < newTaskCount; i++) {
-            Task task = newTasks.get(i);
+            Task task = allTasks.get(i);
             if (task.isHistorical) {
                 historyTasks.add(task);
             } else {
@@ -613,10 +600,16 @@
 
         mStackTaskList.set(stackTasks);
         mHistoryTaskList.set(historyTasks);
-        mRawTaskList.clear();
-        mRawTaskList.addAll(newTasks);
-        mGroups.clear();
-        mAffinitiesGroups.clear();
+        mRawTaskList = allTasks;
+
+        // Only callback for the newly added tasks after this stack has been updated
+        int addedTaskCount = addedTasks.size();
+        for (int i = 0; i < addedTaskCount; i++) {
+            mCb.onStackTaskAdded(this, addedTasks.get(i));
+        }
+
+        // Update the affiliated groupings
+        createAffiliatedGroupings(context);
     }
 
     /**
@@ -779,9 +772,12 @@
     }
 
     /**
-     * Temporary: This method will simulate affiliation groups by
+     * Temporary: This method will simulate affiliation groups
      */
-    public void createAffiliatedGroupings(Context context) {
+    void createAffiliatedGroupings(Context context) {
+        mGroups.clear();
+        mAffinitiesGroups.clear();
+
         if (RecentsDebugFlags.Static.EnableMockTaskGroups) {
             ArrayMap<Task.TaskKey, Task> taskMap = new ArrayMap<>();
             // Sort all tasks by increasing firstActiveTime of the task
@@ -926,13 +922,13 @@
 
     @Override
     public String toString() {
-        String str = "Stack Tasks:\n";
+        String str = "Stack Tasks (" + mStackTaskList.size() + "):\n";
         for (Task t : mStackTaskList.getTasks()) {
-            str += "  " + t.toString() + "\n";
+            str += "    " + t.toString() + "\n";
         }
-        str += "Historical Tasks:\n";
+        str += "Historical Tasks(" + mHistoryTaskList.size() + "):\n";
         for (Task t : mHistoryTaskList.getTasks()) {
-            str += "  " + t.toString() + "\n";
+            str += "    " + t.toString() + "\n";
         }
         return str;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/tv/RecentsTvActivity.java b/packages/SystemUI/src/com/android/systemui/recents/tv/RecentsTvActivity.java
index 02c8d96..dae522f 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/tv/RecentsTvActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/tv/RecentsTvActivity.java
@@ -294,7 +294,7 @@
 
         // Notify that recents is now visible
         SystemServicesProxy ssp = Recents.getSystemServices();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, true));
+        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, true));
 
         if (mPipManager.isPipShown()) {
             // Place mPipView at the PIP bounds for fine tuned focus handling.
@@ -343,8 +343,7 @@
         mPipManager.removeListener(mPipListener);
         mIgnoreAltTabRelease = false;
         // Notify that recents is now hidden
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, ssp, false));
+        EventBus.getDefault().send(new RecentsVisibilityChangedEvent(this, false));
 
         // Workaround for b/22542869, if the RecentsActivity is started again, but without going
         // through SystemUI, we need to reset the config launch flags to ensure that we do not
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
index e5022a4..dd825cb 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
@@ -177,6 +177,7 @@
             // Keep track of failed launches
             EventBus.getDefault().send(new LaunchTaskFailedEvent());
         }
+
         if (transitionFuture != null) {
             IRemoteCallback.Stub callback = null;
             if (animStartedListener != null) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
index 10f491e..1af5a55 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
@@ -60,9 +60,7 @@
 import com.android.systemui.recents.events.activity.LaunchTaskEvent;
 import com.android.systemui.recents.events.activity.ShowHistoryButtonEvent;
 import com.android.systemui.recents.events.activity.ShowHistoryEvent;
-import com.android.systemui.recents.events.activity.TaskStackUpdatedEvent;
 import com.android.systemui.recents.events.activity.ToggleHistoryEvent;
-import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent;
 import com.android.systemui.recents.events.ui.DraggingInRecentsEndedEvent;
 import com.android.systemui.recents.events.ui.DraggingInRecentsEvent;
 import com.android.systemui.recents.events.ui.ResetBackgroundScrimEvent;
@@ -168,35 +166,39 @@
     }
 
     /** Set/get the bsp root node */
-    public void setTaskStack(TaskStack stack) {
+    public void onResume(boolean isResumingFromVisible, TaskStack stack) {
         RecentsConfiguration config = Recents.getConfiguration();
         RecentsActivityLaunchState launchState = config.getLaunchState();
-        mStack = stack;
-        if (launchState.launchedReuseTaskStackViews) {
-            if (mTaskStackView != null) {
-                // If onRecentsHidden is not triggered, we need to the stack view again here
-                mTaskStackView.reset();
-                mTaskStackView.setStack(stack);
-            } else {
-                mTaskStackView = new TaskStackView(getContext(), stack);
-                addView(mTaskStackView);
-            }
-        } else {
-            if (mTaskStackView != null) {
-                removeView(mTaskStackView);
-            }
-            mTaskStackView = new TaskStackView(getContext(), stack);
+
+        if (mTaskStackView == null || !launchState.launchedReuseTaskStackViews) {
+            isResumingFromVisible = false;
+            removeView(mTaskStackView);
+            mTaskStackView = new TaskStackView(getContext());
+            mStack = mTaskStackView.getStack();
             addView(mTaskStackView);
         }
 
-        // If we are already occluded by the app, then just set the default background scrim now.
-        // Otherwise, defer until the enter animation completes to animate the scrim with the
-        // tasks for the home animation.
-        if (launchState.launchedWhileDocking || launchState.launchedFromApp
-                || mStack.getTaskCount() == 0) {
-            mBackgroundScrim.setAlpha((int) (DEFAULT_SCRIM_ALPHA * 255));
+        // Reset the state
+        mAwaitingFirstLayout = !isResumingFromVisible;
+        mLastTaskLaunchedWasFreeform = false;
+
+        // Update the stack
+        mTaskStackView.onResume(isResumingFromVisible);
+        mTaskStackView.setTasks(stack, isResumingFromVisible /* notifyStackChanges */);
+
+        if (isResumingFromVisible) {
+            // If we are already visible, then restore the background scrim
+            animateBackgroundScrim(DEFAULT_SCRIM_ALPHA, DEFAULT_UPDATE_SCRIM_DURATION);
         } else {
-            mBackgroundScrim.setAlpha(0);
+            // If we are already occluded by the app, then set the final background scrim alpha now.
+            // Otherwise, defer until the enter animation completes to animate the scrim alpha with
+            // the tasks for the home animation.
+            if (launchState.launchedWhileDocking || launchState.launchedFromApp
+                    || mStack.getTaskCount() == 0) {
+                mBackgroundScrim.setAlpha((int) (DEFAULT_SCRIM_ALPHA * 255));
+            } else {
+                mBackgroundScrim.setAlpha(0);
+            }
         }
 
         // Update the top level view's visibilities
@@ -205,9 +207,6 @@
         } else {
             showEmptyView();
         }
-
-        // Trigger a new layout
-        requestLayout();
     }
 
     /**
@@ -662,13 +661,6 @@
         animator.start();
     }
 
-    public final void onBusEvent(TaskStackUpdatedEvent event) {
-        if (!event.inMultiWindow) {
-            mStack.setTasks(event.stack.computeAllTasksList(), true /* notifyStackChanges */);
-            mStack.createAffiliatedGroupings(getContext());
-        }
-    }
-
     public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
         RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();
         if (!launchState.launchedWhileDocking && !launchState.launchedFromApp
@@ -686,17 +678,6 @@
         animateBackgroundScrim(DEFAULT_SCRIM_ALPHA, DEFAULT_UPDATE_SCRIM_DURATION);
     }
 
-    public final void onBusEvent(RecentsVisibilityChangedEvent event) {
-        if (!event.visible) {
-            // Reset the view state
-            mAwaitingFirstLayout = true;
-            mLastTaskLaunchedWasFreeform = false;
-            if (RecentsDebugFlags.Static.EnableHistory) {
-                hideHistoryButton(0, false /* translate */);
-            }
-        }
-    }
-
     public final void onBusEvent(ToggleHistoryEvent event) {
         if (!RecentsDebugFlags.Static.EnableHistory) {
             return;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
index 1cd0850..19b219a 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/SystemBarScrimViews.java
@@ -16,9 +16,11 @@
 
 package com.android.systemui.recents.views;
 
+import android.animation.AnimatorListenerAdapter;
 import android.app.Activity;
 import android.content.Context;
 import android.view.View;
+import android.view.ViewPropertyAnimator;
 
 import com.android.systemui.Interpolators;
 import com.android.systemui.R;
@@ -56,25 +58,41 @@
                 View.VISIBLE : View.INVISIBLE);
     }
 
+    /**
+     * Animates the nav bar scrim visibility.
+     */
+    public void animateNavBarScrimVisibility(boolean visible, AnimationProps animation) {
+        int toY = 0;
+        if (visible) {
+            mNavBarScrimView.setVisibility(View.VISIBLE);
+            mNavBarScrimView.setTranslationY(mNavBarScrimView.getMeasuredHeight());
+        } else {
+            toY = mNavBarScrimView.getMeasuredHeight();
+        }
+        if (animation != AnimationProps.IMMEDIATE) {
+            mNavBarScrimView.animate()
+                    .translationY(toY)
+                    .setDuration(animation.getDuration(AnimationProps.BOUNDS))
+                    .setInterpolator(animation.getInterpolator(AnimationProps.BOUNDS))
+                    .start();
+        } else {
+            mNavBarScrimView.setTranslationY(toY);
+        }
+    }
+
     /**** EventBus events ****/
 
     /**
      * Starts animating the scrim views when entering Recents.
      */
     public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
-        if (mHasNavBarScrim && mShouldAnimateNavBarScrim) {
-            mNavBarScrimView.setTranslationY(mNavBarScrimView.getMeasuredHeight());
-            mNavBarScrimView.animate()
-                    .translationY(0)
-                    .setDuration(mNavBarScrimEnterDuration)
-                    .setInterpolator(Interpolators.DECELERATE_QUINT)
-                    .withStartAction(new Runnable() {
-                        @Override
-                        public void run() {
-                            mNavBarScrimView.setVisibility(View.VISIBLE);
-                        }
-                    })
-                    .start();
+        if (mHasNavBarScrim) {
+            AnimationProps animation = mShouldAnimateNavBarScrim
+                    ? new AnimationProps()
+                            .setDuration(AnimationProps.BOUNDS, mNavBarScrimEnterDuration)
+                            .setInterpolator(AnimationProps.BOUNDS, Interpolators.DECELERATE_QUINT)
+                    : AnimationProps.IMMEDIATE;
+            animateNavBarScrimVisibility(true, animation);
         }
     }
 
@@ -83,13 +101,12 @@
      * going home).
      */
     public final void onBusEvent(DismissRecentsToHomeAnimationStarted event) {
-        if (mHasNavBarScrim && mShouldAnimateNavBarScrim) {
-            mNavBarScrimView.animate()
-                    .translationY(mNavBarScrimView.getMeasuredHeight())
-                    .setStartDelay(0)
-                    .setDuration(TaskStackAnimationHelper.EXIT_TO_HOME_TRANSLATION_DURATION)
-                    .setInterpolator(Interpolators.FAST_OUT_SLOW_IN)
-                    .start();
+        if (mHasNavBarScrim) {
+            AnimationProps animation = new AnimationProps()
+                    .setDuration(AnimationProps.BOUNDS,
+                            TaskStackAnimationHelper.EXIT_TO_HOME_TRANSLATION_DURATION)
+                    .setInterpolator(AnimationProps.BOUNDS, Interpolators.FAST_OUT_SLOW_IN);
+            animateNavBarScrimVisibility(false, animation);
         }
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
index b60fca8c1..699b85e 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
@@ -531,7 +531,6 @@
             return;
         }
 
-        RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();
         mUnfocusedRange.offset(0f);
         int taskCount = tasks.size();
         for (int i = taskCount - 1; i >= 0; i--) {
@@ -571,6 +570,10 @@
      * Updates this stack when a scroll happens.
      */
     public void updateFocusStateOnScroll(float stackScroll, float deltaScroll) {
+        if (deltaScroll == 0f) {
+            return;
+        }
+
         for (int i = mTaskIndexOverrideMap.size() - 1; i >= 0; i--) {
             int taskId = mTaskIndexOverrideMap.keyAt(i);
             float x = mTaskIndexMap.get(taskId);
@@ -631,6 +634,13 @@
     }
 
     /**
+     * Returns whether this stack layout has been initialized.
+     */
+    public boolean isInitialized() {
+        return !mStackRect.isEmpty();
+    }
+
+    /**
      * Computes the maximum number of visible tasks and thumbnails when the scroll is at the initial
      * stack scroll.  Requires that update() is called first.
      */
@@ -672,8 +682,9 @@
 
             boolean isFrontMostTaskInGroup = task.group == null || task.group.isFrontMostTask(task);
             if (isFrontMostTaskInGroup) {
-                getStackTransform(taskProgress, mInitialScrollP, mFocusState, tmpTransform, null,
-                        false /* ignoreSingleTaskCase */, false /* forceUpdate */);
+                getStackTransform(taskProgress, taskProgress, mInitialScrollP, mFocusState,
+                        tmpTransform, null, false /* ignoreSingleTaskCase */,
+                        false /* forceUpdate */);
                 float screenY = tmpTransform.rect.top;
                 boolean hasVisibleThumbnail = (prevScreenY - screenY) > taskBarHeight;
                 if (hasVisibleThumbnail) {
@@ -725,15 +736,16 @@
             return transformOut;
         } else {
             // Return early if we have an invalid index
-            if (task == null || mTaskIndexMap.get(task.key.id, -1) == -1) {
+            int nonOverrideTaskProgress = mTaskIndexMap.get(task.key.id, -1);
+            if (task == null || nonOverrideTaskProgress == -1) {
                 transformOut.reset();
                 return transformOut;
             }
             float taskProgress = ignoreTaskOverrides
-                    ? mTaskIndexMap.get(task.key.id, 0)
+                    ? nonOverrideTaskProgress
                     : getStackScrollForTask(task);
-            getStackTransform(taskProgress, stackScroll, focusState, transformOut,
-                    frontTransform, false /* ignoreSingleTaskCase */, forceUpdate);
+            getStackTransform(taskProgress, nonOverrideTaskProgress, stackScroll, focusState,
+                    transformOut, frontTransform, false /* ignoreSingleTaskCase */, forceUpdate);
             return transformOut;
         }
     }
@@ -758,9 +770,9 @@
      *                             internally to ensure that we can calculate the transform for any
      *                             position in the stack.
      */
-    public void getStackTransform(float taskProgress, float stackScroll, int focusState,
-            TaskViewTransform transformOut, TaskViewTransform frontTransform,
-            boolean ignoreSingleTaskCase, boolean forceUpdate) {
+    public void getStackTransform(float taskProgress, float nonOverrideTaskProgress,
+            float stackScroll, int focusState, TaskViewTransform transformOut,
+            TaskViewTransform frontTransform, boolean ignoreSingleTaskCase, boolean forceUpdate) {
         SystemServicesProxy ssp = Recents.getSystemServices();
 
         // Compute the focused and unfocused offset
@@ -769,6 +781,8 @@
         mFocusedRange.offset(boundedStackScroll);
         float boundedScrollUnfocusedRangeX = mUnfocusedRange.getNormalizedX(taskProgress);
         float boundedScrollFocusedRangeX = mFocusedRange.getNormalizedX(taskProgress);
+        float boundedScrollUnfocusedNonOverrideRangeX =
+                mUnfocusedRange.getNormalizedX(nonOverrideTaskProgress);
         mUnfocusedRange.offset(stackScroll);
         mFocusedRange.offset(stackScroll);
         boolean unfocusedVisible = mUnfocusedRange.isInRange(taskProgress);
@@ -812,7 +826,7 @@
 
             y = (mStackRect.top - mTaskRect.top) +
                     (int) Utilities.mapRange(focusState, unfocusedY, focusedY);
-            z = Utilities.mapRange(Utilities.clamp01(boundedScrollUnfocusedRangeX),
+            z = Utilities.mapRange(Utilities.clamp01(boundedScrollUnfocusedNonOverrideRangeX),
                     mMinTranslationZ, mMaxTranslationZ);
             dimAlpha = Utilities.mapRange(focusState, unfocusedDim, focusedDim);
             viewOutlineAlpha = Utilities.mapRange(Utilities.clamp01(boundedScrollUnfocusedRangeX),
@@ -952,9 +966,9 @@
                 mFocusedRange.relativeMin);
         float max = Utilities.mapRange(mFocusState, mUnfocusedRange.relativeMax,
                 mFocusedRange.relativeMax);
-        getStackTransform(min, 0f, mFocusState, mBackOfStackTransform, null,
+        getStackTransform(min, min, 0f, mFocusState, mBackOfStackTransform, null,
                 true /* ignoreSingleTaskCase */, true /* forceUpdate */);
-        getStackTransform(max, 0f, mFocusState, mFrontOfStackTransform, null,
+        getStackTransform(max, max, 0f, mFocusState, mFrontOfStackTransform, null,
                 true /* ignoreSingleTaskCase */, true /* forceUpdate */);
         mBackOfStackTransform.visible = true;
         mFrontOfStackTransform.visible = true;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index c2bfc28..6abb826 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -65,11 +65,10 @@
 import com.android.systemui.recents.events.activity.LaunchNextTaskRequestEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskStartedEvent;
+import com.android.systemui.recents.events.activity.MultiWindowStateChangedEvent;
 import com.android.systemui.recents.events.activity.PackagesChangedEvent;
 import com.android.systemui.recents.events.activity.ShowHistoryButtonEvent;
 import com.android.systemui.recents.events.activity.ShowHistoryEvent;
-import com.android.systemui.recents.events.activity.TaskStackUpdatedEvent;
-import com.android.systemui.recents.events.component.RecentsVisibilityChangedEvent;
 import com.android.systemui.recents.events.ui.AllTaskViewsDismissedEvent;
 import com.android.systemui.recents.events.ui.DeleteTaskDataEvent;
 import com.android.systemui.recents.events.ui.DismissTaskViewEvent;
@@ -117,7 +116,7 @@
     private static final ArraySet<Task.TaskKey> EMPTY_TASK_SET = new ArraySet<>();
 
     LayoutInflater mInflater;
-    TaskStack mStack;
+    TaskStack mStack = new TaskStack();
     @ViewDebug.ExportedProperty(deepExport=true, prefix="layout_")
     TaskStackLayoutAlgorithm mLayoutAlgorithm;
     @ViewDebug.ExportedProperty(deepExport=true, prefix="scroller_")
@@ -206,13 +205,13 @@
         }
     };
 
-    public TaskStackView(Context context, TaskStack stack) {
+    public TaskStackView(Context context) {
         super(context);
         SystemServicesProxy ssp = Recents.getSystemServices();
         Resources res = context.getResources();
 
         // Set the stack first
-        setStack(stack);
+        mStack.setCallbacks(this);
         mViewPool = new ViewPool<>(context, this);
         mInflater = LayoutInflater.from(context);
         mLayoutAlgorithm = new TaskStackLayoutAlgorithm(context, this);
@@ -248,6 +247,41 @@
         }
     }
 
+    /**
+     * Called only if we are resuming Recents.
+     */
+    void onResume(boolean isResumingFromVisible) {
+        if (!isResumingFromVisible) {
+            // Reset the focused task
+            resetFocusedTask(getFocusedTask());
+        }
+
+        // Reset the state of each of the task views
+        List<TaskView> taskViews = new ArrayList<>();
+        taskViews.addAll(getTaskViews());
+        taskViews.addAll(mViewPool.getViews());
+        for (int i = taskViews.size() - 1; i >= 0; i--) {
+            taskViews.get(i).onResume(isResumingFromVisible);
+        }
+
+        // Reset the stack state
+        readSystemFlags();
+        mTaskViewsClipDirty = true;
+        mEnterAnimationComplete = false;
+        mUIDozeTrigger.stopDozing();
+        if (isResumingFromVisible) {
+            // Animate in the freeform workspace
+            int ffBgAlpha = mLayoutAlgorithm.getStackState().freeformBackgroundAlpha;
+            animateFreeformWorkspaceBackgroundAlpha(ffBgAlpha, new AnimationProps(150,
+                    Interpolators.FAST_OUT_SLOW_IN));
+        } else {
+            mStackScroller.reset();
+            mLayoutAlgorithm.reset();
+            mAwaitingFirstLayout = true;
+            requestLayout();
+        }
+    }
+
     @Override
     protected void onAttachedToWindow() {
         EventBus.getDefault().register(this, RecentsActivity.EVENT_BUS_PRIORITY + 1);
@@ -261,15 +295,20 @@
         EventBus.getDefault().unregister(this);
     }
 
-    /** Sets the task stack */
-    void setStack(TaskStack stack) {
-        // Set the new stack
-        mStack = stack;
-        if (mStack != null) {
-            mStack.setCallbacks(this);
+    /**
+     * Sets the stack tasks of this TaskStackView from the given TaskStack.
+     */
+    public void setTasks(TaskStack stack, boolean notifyStackChanges) {
+        boolean isInitialized = mLayoutAlgorithm.isInitialized();
+        mStack.setTasks(getContext(), stack.computeAllTasksList(),
+                notifyStackChanges && isInitialized);
+        if (isInitialized) {
+            // Only update the layout if we are notifying, otherwise, we will update it in the next
+            // measure/layout pass
+            updateLayoutAlgorithm(false /* boundScroll */, EMPTY_TASK_SET);
+            updateToInitialState();
+            relayoutTaskViewsOnNextFrame(AnimationProps.IMMEDIATE);
         }
-        // Layout again with the new stack
-        requestLayout();
     }
 
     /** Returns the task stack. */
@@ -338,36 +377,6 @@
         return null;
     }
 
-    /** Resets this TaskStackView for reuse. */
-    void reset() {
-        // Reset the focused task
-        resetFocusedTask(getFocusedTask());
-
-        // Return all the views to the pool
-        List<TaskView> taskViews = getTaskViews();
-        int taskViewCount = taskViews.size();
-        for (int i = taskViewCount - 1; i >= 0; i--) {
-            mViewPool.returnViewToPool(taskViews.get(i));
-        }
-
-        // Mark each task view for relayout
-        List<TaskView> poolViews = mViewPool.getViews();
-        for (TaskView tv : poolViews) {
-            tv.reset();
-        }
-
-        // Reset the stack state
-        mStack.reset();
-        mTaskViewsClipDirty = true;
-        mAwaitingFirstLayout = true;
-        mEnterAnimationComplete = false;
-        mUIDozeTrigger.stopDozing();
-        mStackScroller.reset();
-        mLayoutAlgorithm.reset();
-        readSystemFlags();
-        requestLayout();
-    }
-
     /** Returns the stack algorithm for this task stack. */
     public TaskStackLayoutAlgorithm getStackAlgorithm() {
         return mLayoutAlgorithm;
@@ -514,15 +523,22 @@
         for (int i = taskViewCount - 1; i >= 0; i--) {
             TaskView tv = taskViews.get(i);
             Task task = tv.getTask();
-            int taskIndex = mStack.indexOfStackTask(task);
-            TaskViewTransform transform = mCurrentTaskTransforms.get(taskIndex);
 
             // Skip ignored tasks
             if (ignoreTasksSet.contains(task.key)) {
                 continue;
             }
 
-            if (task.isFreeformTask() || transform.visible) {
+            // It is possible for the set of lingering TaskViews to differ from the stack if the
+            // stack was updated before the relayout.  If the task view is no longer in the stack,
+            // then just return it back to the view pool.
+            int taskIndex = mStack.indexOfStackTask(task);
+            TaskViewTransform transform = null;
+            if (taskIndex != -1) {
+                transform = mCurrentTaskTransforms.get(taskIndex);
+            }
+
+            if (task.isFreeformTask() || (transform != null && transform.visible)) {
                 mTmpTaskViewMap.put(task.key, tv);
             } else {
                 if (mTouchExplorationEnabled) {
@@ -1120,15 +1136,6 @@
     }
 
     /**
-     * This is ONLY used from the Recents component to update the dummy stack view for purposes
-     * of getting the task rect to animate to.
-     */
-    public void updateLayoutForStack(TaskStack stack) {
-        mStack = stack;
-        updateLayoutAlgorithm(false /* boundScroll */, EMPTY_TASK_SET);
-    }
-
-    /**
      * Computes the maximum number of visible tasks and thumbnails. Requires that
      * updateLayoutForStack() is called first.
      */
@@ -1423,7 +1430,7 @@
     public void onReturnViewToPool(TaskView tv) {
         final Task task = tv.getTask();
 
-        // Report that this tasks's data is no longer being used
+        // Report that this task's data is no longer being used
         Recents.getTaskLoader().unloadTaskData(task);
 
         // Reset the view properties and view state
@@ -1670,12 +1677,6 @@
         }
     }
 
-    public final void onBusEvent(RecentsVisibilityChangedEvent event) {
-        if (!event.visible) {
-            reset();
-        }
-    }
-
     public final void onBusEvent(DragStartEvent event) {
         // Ensure that the drag task is not animated
         addIgnoreTask(event.task);
@@ -1772,12 +1773,14 @@
         event.taskView.setLeftTopRightBottom(taskViewRect.left, taskViewRect.top,
                 taskViewRect.right, taskViewRect.bottom);
 
-        // Animate all the TaskViews back into position
+        // Animate the non-drag TaskViews back into position
         mLayoutAlgorithm.getStackTransform(event.task, getScroller().getStackScroll(),
                 mTmpTransform, null);
         event.getAnimationTrigger().increment();
         relayoutTaskViews(new AnimationProps(DEFAULT_SYNC_STACK_DURATION,
                 Interpolators.FAST_OUT_SLOW_IN));
+
+        // Animate the drag TaskView back into position
         updateTaskViewToTransform(event.taskView, mTmpTransform,
                 new AnimationProps(DEFAULT_SYNC_STACK_DURATION, Interpolators.FAST_OUT_SLOW_IN,
                         event.getAnimationTrigger().decrementOnAnimationEnd()));
@@ -1850,31 +1853,22 @@
         mAnimationHelper.startHideHistoryAnimation();
     }
 
-    public final void onBusEvent(TaskStackUpdatedEvent event) {
+    public final void onBusEvent(MultiWindowStateChangedEvent event) {
         if (!event.inMultiWindow) {
-            // Scroll the stack to the front after it has been updated
-            event.addPostAnimationCallback(new Runnable() {
+            // Scroll the stack to the front to see the undocked task
+            mStackScroller.animateScroll(mLayoutAlgorithm.mMaxScrollP, new Runnable() {
                 @Override
                 public void run() {
-                    mStackScroller.animateScroll(mLayoutAlgorithm.mMaxScrollP,
-                            null /* postScrollRunnable */);
+                    List<TaskView> taskViews = getTaskViews();
+                    int taskViewCount = taskViews.size();
+                    for (int i = 0; i < taskViewCount; i++) {
+                        TaskView tv = taskViews.get(i);
+                        tv.getHeaderView().rebindToTask(tv.getTask(), tv.mTouchExplorationEnabled,
+                                tv.mIsDisabledInSafeMode);
+                    }
                 }
             });
         }
-        // When the multi-window state changes, rebind all task view headers again to update their
-        // dockable state
-        event.addPostAnimationCallback(new Runnable() {
-            @Override
-            public void run() {
-                List<TaskView> taskViews = getTaskViews();
-                int taskViewCount = taskViews.size();
-                for (int i = 0; i < taskViewCount; i++) {
-                    TaskView tv = taskViews.get(i);
-                    tv.getHeaderView().rebindToTask(tv.getTask(), tv.mTouchExplorationEnabled,
-                            tv.mIsDisabledInSafeMode);
-                }
-            }
-        });
     }
 
     public final void onBusEvent(ConfigurationChangedEvent event) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
index e9c7ac6..0bc7f89 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskView.java
@@ -193,11 +193,13 @@
     }
 
     /** Resets this TaskView for reuse. */
-    void reset() {
-        resetViewProperties();
+    void onResume(boolean isResumingFromVisible) {
         resetNoUserInteractionState();
         readSystemFlags();
-        setClipViewInStack(false);
+        if (!isResumingFromVisible) {
+            resetViewProperties();
+            setClipViewInStack(false);
+        }
         setCallbacks(null);
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index 469a1fc..143f160 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -1891,7 +1891,7 @@
         }
     }
 
-    protected abstract boolean isPanelFullyCollapsed();
+    public abstract boolean isPanelFullyCollapsed();
 
     /**
      * Cancel this notification and tell the StatusBarManagerService / NotificationManagerService
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
index ef16388..073a848 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
@@ -3554,7 +3554,7 @@
     }
 
     @Override
-    protected boolean isPanelFullyCollapsed() {
+    public boolean isPanelFullyCollapsed() {
         return mNotificationPanel.isFullyCollapsed();
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
index 256cc6b..326ca2b 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickStatusBarHeader.java
@@ -296,7 +296,6 @@
         mHost = host;
         host.setHeaderView(this);
         mHeaderQsPanel.setQSPanelAndHeader(mQsPanel, this);
-        mHeaderQsPanel.setMaxTiles(5);
         mHeaderQsPanel.setHost(host);
         setUserInfoController(host.getUserInfoController());
         setBatteryController(host.getBatteryController());
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
index 0ed6ef8..2524e1a 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/tv/TvStatusBar.java
@@ -125,7 +125,7 @@
     }
 
     @Override
-    protected boolean isPanelFullyCollapsed() {
+    public boolean isPanelFullyCollapsed() {
         return false;
     }
 
diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index 8171b49..f3140d2 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -1798,38 +1798,56 @@
 
     // ACTION: User tapped notification action to cancel a bug report
     // CATEGORY: NOTIFICATION
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_NOTIFICATION_ACTION_CANCEL = 296;
 
     // ACTION: User tapped notification action to launch bug report details screen
     // CATEGORY: NOTIFICATION
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_NOTIFICATION_ACTION_DETAILS = 297;
 
     // ACTION: User tapped notification action to take adition screenshot on bug report
     // CATEGORY: NOTIFICATION
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_NOTIFICATION_ACTION_SCREENSHOT = 298;
 
     // ACTION: User tapped notification to share bug report
     // CATEGORY: NOTIFICATION
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_NOTIFICATION_ACTION_SHARE = 299;
 
     // ACTION: User changed bug report name using the details screen
     // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_DETAILS_NAME_CHANGED = 300;
 
     // ACTION: User changed bug report title using the details screen
     // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_DETAILS_TITLE_CHANGED = 301;
 
     // ACTION: User changed bug report description using the details screen
     // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_DETAILS_DESCRIPTION_CHANGED = 302;
 
     // ACTION: User tapped Save in the bug report details screen.
     // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_DETAILS_SAVED = 303;
 
     // ACTION: User tapped Cancel in the bug report details screen.
     // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: N
+    // GMS: 7.8.99
     ACTION_BUGREPORT_DETAILS_CANCELED = 304;
 
     // Tuner: Open/close calibrate dialog.
diff --git a/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java b/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
index 8603981..3659a40 100644
--- a/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
+++ b/services/appwidget/java/com/android/server/appwidget/AppWidgetServiceImpl.java
@@ -2496,7 +2496,7 @@
 
             return mPackageManager.queryIntentReceivers(intent,
                     intent.resolveTypeIfNeeded(mContext.getContentResolver()),
-                    flags, userId);
+                    flags, userId).getList();
         } catch (RemoteException re) {
             return Collections.emptyList();
         } finally {
diff --git a/services/backup/java/com/android/server/backup/BackupManagerService.java b/services/backup/java/com/android/server/backup/BackupManagerService.java
index f1a9c44..cd4d107d 100644
--- a/services/backup/java/com/android/server/backup/BackupManagerService.java
+++ b/services/backup/java/com/android/server/backup/BackupManagerService.java
@@ -3495,9 +3495,8 @@
             // The agent was running with a stub Application object, so shut it down.
             // !!! We hardcode the confirmation UI's package name here rather than use a
             //     manifest flag!  TODO something less direct.
-            if (app.uid != Process.SYSTEM_UID
-                    && !app.packageName.equals("com.android.backupconfirm")
-                    && app.uid != Process.PHONE_UID) {
+            if (app.uid >= Process.FIRST_APPLICATION_UID
+                    && !app.packageName.equals("com.android.backupconfirm")) {
                 if (MORE_DEBUG) Slog.d(TAG, "Killing agent host process");
                 mActivityManager.killApplicationProcess(app.processName, app.uid);
             } else {
@@ -6881,7 +6880,7 @@
                     // The agent was running with a stub Application object, so shut it down.
                     // !!! We hardcode the confirmation UI's package name here rather than use a
                     //     manifest flag!  TODO something less direct.
-                    if (app.uid != Process.SYSTEM_UID
+                    if (app.uid >= Process.FIRST_APPLICATION_UID
                             && !app.packageName.equals("com.android.backupconfirm")) {
                         if (DEBUG) Slog.d(TAG, "Killing host process");
                         mActivityManager.killApplicationProcess(app.processName, app.uid);
@@ -8625,13 +8624,15 @@
                     // it is explicitly not killed following that operation.
                     //
                     // We execute this kill when these conditions hold:
-                    //    1. the app did not request its own restore (mTargetPackage == null), and either
-                    //    2a. the app is a full-data target (TYPE_FULL_STREAM) or
+                    //    1. it's not a system-uid process,
+                    //    2. the app did not request its own restore (mTargetPackage == null), and either
+                    //    3a. the app is a full-data target (TYPE_FULL_STREAM) or
                     //     b. the app does not state android:killAfterRestore="false" in its manifest
                     final int appFlags = mCurrentPackage.applicationInfo.flags;
                     final boolean killAfterRestore =
-                            (mRestoreDescription.getDataType() == RestoreDescription.TYPE_FULL_STREAM)
-                            || ((appFlags & ApplicationInfo.FLAG_KILL_AFTER_RESTORE) != 0);
+                            (mCurrentPackage.applicationInfo.uid >= Process.FIRST_APPLICATION_UID)
+                            && ((mRestoreDescription.getDataType() == RestoreDescription.TYPE_FULL_STREAM)
+                                    || ((appFlags & ApplicationInfo.FLAG_KILL_AFTER_RESTORE) != 0));
 
                     if (mTargetPackage == null && killAfterRestore) {
                         if (DEBUG) Slog.d(TAG, "Restore complete, killing host process of "
diff --git a/services/core/java/com/android/server/BluetoothManagerService.java b/services/core/java/com/android/server/BluetoothManagerService.java
index 8cfeb74..e241a4a 100644
--- a/services/core/java/com/android/server/BluetoothManagerService.java
+++ b/services/core/java/com/android/server/BluetoothManagerService.java
@@ -19,7 +19,6 @@
 import android.Manifest;
 import android.app.ActivityManager;
 import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothProfile;
 import android.bluetooth.IBluetooth;
 import android.bluetooth.IBluetoothCallback;
@@ -44,7 +43,6 @@
 import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
-import android.os.ParcelFileDescriptor;
 import android.os.Process;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
@@ -53,10 +51,9 @@
 import android.os.UserManager;
 import android.provider.Settings;
 import android.provider.Settings.SettingNotFoundException;
-import android.util.Log;
+import android.util.Slog;
 
 import java.io.FileDescriptor;
-import java.io.IOException;
 import java.io.PrintWriter;
 import java.util.HashMap;
 import java.util.Map;
@@ -92,14 +89,15 @@
     private static final int MESSAGE_BLUETOOTH_SERVICE_CONNECTED = 40;
     private static final int MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED = 41;
     private static final int MESSAGE_RESTART_BLUETOOTH_SERVICE = 42;
-    private static final int MESSAGE_BLUETOOTH_STATE_CHANGE=60;
-    private static final int MESSAGE_TIMEOUT_BIND =100;
-    private static final int MESSAGE_TIMEOUT_UNBIND =101;
+    private static final int MESSAGE_BLUETOOTH_STATE_CHANGE = 60;
+    private static final int MESSAGE_TIMEOUT_BIND = 100;
+    private static final int MESSAGE_TIMEOUT_UNBIND = 101;
     private static final int MESSAGE_USER_SWITCHED = 300;
+    private static final int MESSAGE_USER_UNLOCKED = 301;
     private static final int MESSAGE_ADD_PROXY_DELAYED = 400;
     private static final int MESSAGE_BIND_PROFILE_SERVICE = 401;
-    private static final int MAX_SAVE_RETRIES=3;
-    private static final int MAX_ERROR_RESTART_RETRIES=6;
+    private static final int MAX_SAVE_RETRIES = 3;
+    private static final int MAX_ERROR_RESTART_RETRIES = 6;
 
     // Bluetooth persisted setting is off
     private static final int BLUETOOTH_OFF=0;
@@ -176,7 +174,7 @@
             String action = intent.getAction();
             if (BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED.equals(action)) {
                 String newName = intent.getStringExtra(BluetoothAdapter.EXTRA_LOCAL_NAME);
-                if (DBG) Log.d(TAG, "Bluetooth Adapter name changed to " + newName);
+                if (DBG) Slog.d(TAG, "Bluetooth Adapter name changed to " + newName);
                 if (newName != null) {
                     storeNameAndAddress(newName, null);
                 }
@@ -195,10 +193,10 @@
                         try {
                             st = mBluetooth.getState();
                         } catch (RemoteException e) {
-                            Log.e(TAG,"Unable to call getState", e);
+                            Slog.e(TAG,"Unable to call getState", e);
                         }
                     }
-                    Log.d(TAG, "state" + st);
+                    Slog.d(TAG, "state" + st);
 
                     if (isAirplaneModeOn()) {
                         // Clear registered LE apps to force shut-off
@@ -214,16 +212,16 @@
                                     mEnableExternal = false;
                                 }
                             } catch(RemoteException e) {
-                                Log.e(TAG,"Unable to call onBrEdrDown", e);
+                                Slog.e(TAG,"Unable to call onBrEdrDown", e);
                             }
                         } else if (st == BluetoothAdapter.STATE_ON){
                             // disable without persisting the setting
-                            Log.d(TAG, "Calling disable");
+                            Slog.d(TAG, "Calling disable");
                             sendDisableMsg();
                         }
                     } else if (mEnableExternal) {
                         // enable without persisting the setting
-                        Log.d(TAG, "Calling enable");
+                        Slog.d(TAG, "Calling enable");
                         sendEnableMsg(mQuietEnableExternal);
                     }
                 }
@@ -267,7 +265,7 @@
                     PackageManager.MATCH_SYSTEM_ONLY, UserHandle.USER_SYSTEM);
         } catch (PackageManager.NameNotFoundException e) {
             // Some platforms, such as wearables do not have a system ui.
-            Log.w(TAG, "Unable to resolve SystemUI's UID.", e);
+            Slog.w(TAG, "Unable to resolve SystemUI's UID.", e);
         }
         mSystemUiUid = sysUiUid;
     }
@@ -320,17 +318,17 @@
      * in the local cache
      */
     private void loadStoredNameAndAddress() {
-        if (DBG) Log.d(TAG, "Loading stored name and address");
+        if (DBG) Slog.d(TAG, "Loading stored name and address");
         if (mContext.getResources().getBoolean
             (com.android.internal.R.bool.config_bluetooth_address_validation) &&
              Settings.Secure.getInt(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDR_VALID, 0) == 0) {
             // if the valid flag is not set, don't load the address and name
-            if (DBG) Log.d(TAG, "invalid bluetooth name and address stored");
+            if (DBG) Slog.d(TAG, "invalid bluetooth name and address stored");
             return;
         }
         mName = Settings.Secure.getString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_NAME);
         mAddress = Settings.Secure.getString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDRESS);
-        if (DBG) Log.d(TAG, "Stored bluetooth Name=" + mName + ",Address=" + mAddress);
+        if (DBG) Slog.d(TAG, "Stored bluetooth Name=" + mName + ",Address=" + mAddress);
     }
 
     /**
@@ -343,14 +341,14 @@
         if (name != null) {
             Settings.Secure.putString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_NAME, name);
             mName = name;
-            if (DBG) Log.d(TAG,"Stored Bluetooth name: " +
+            if (DBG) Slog.d(TAG,"Stored Bluetooth name: " +
                 Settings.Secure.getString(mContentResolver,SECURE_SETTINGS_BLUETOOTH_NAME));
         }
 
         if (address != null) {
             Settings.Secure.putString(mContentResolver, SECURE_SETTINGS_BLUETOOTH_ADDRESS, address);
             mAddress=address;
-            if (DBG)  Log.d(TAG,"Stored Bluetoothaddress: " +
+            if (DBG)  Slog.d(TAG,"Stored Bluetoothaddress: " +
                 Settings.Secure.getString(mContentResolver,SECURE_SETTINGS_BLUETOOTH_ADDRESS));
         }
 
@@ -361,7 +359,7 @@
 
     public IBluetooth registerAdapter(IBluetoothManagerCallback callback){
         if (callback == null) {
-            Log.w(TAG, "Callback is null in registerAdapter");
+            Slog.w(TAG, "Callback is null in registerAdapter");
             return null;
         }
         Message msg = mHandler.obtainMessage(MESSAGE_REGISTER_ADAPTER);
@@ -374,7 +372,7 @@
 
     public void unregisterAdapter(IBluetoothManagerCallback callback) {
         if (callback == null) {
-            Log.w(TAG, "Callback is null in unregisterAdapter");
+            Slog.w(TAG, "Callback is null in unregisterAdapter");
             return;
         }
         mContext.enforceCallingOrSelfPermission(BLUETOOTH_PERM,
@@ -403,7 +401,7 @@
     public boolean isEnabled() {
         if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
             (!checkIfCallerIsForegroundUser())) {
-            Log.w(TAG,"isEnabled(): not allowed for non-active and non system user");
+            Slog.w(TAG,"isEnabled(): not allowed for non-active and non system user");
             return false;
         }
 
@@ -411,7 +409,7 @@
             try {
                 return (mBluetooth != null && mBluetooth.isEnabled());
             } catch (RemoteException e) {
-                Log.e(TAG, "isEnabled()", e);
+                Slog.e(TAG, "isEnabled()", e);
             }
         }
         return false;
@@ -419,17 +417,17 @@
 
     class ClientDeathRecipient implements IBinder.DeathRecipient {
         public void binderDied() {
-            if (DBG) Log.d(TAG, "Binder is dead -  unregister Ble App");
+            if (DBG) Slog.d(TAG, "Binder is dead -  unregister Ble App");
             if (mBleAppCount > 0) --mBleAppCount;
 
             if (mBleAppCount == 0) {
-                if (DBG) Log.d(TAG, "Disabling LE only mode after application crash");
+                if (DBG) Slog.d(TAG, "Disabling LE only mode after application crash");
                 try {
                     if (mBluetooth != null) {
                         mBluetooth.onBrEdrDown();
                     }
                 } catch(RemoteException e) {
-                     Log.e(TAG,"Unable to call onBrEdrDown", e);
+                     Slog.e(TAG,"Unable to call onBrEdrDown", e);
                 }
             }
         }
@@ -459,7 +457,7 @@
                     try {
                         if (mBluetooth != null) mBluetooth.onBrEdrDown();
                     } catch (RemoteException e) {
-                        Log.e(TAG, "error when disabling bluetooth", e);
+                        Slog.e(TAG, "error when disabling bluetooth", e);
                     }
                 }
             }
@@ -474,11 +472,11 @@
     private void disableBleScanMode() {
         try {
             if (mBluetooth != null && (mBluetooth.getState() != BluetoothAdapter.STATE_ON)) {
-                if (DBG) Log.d(TAG, "Reseting the mEnable flag for clean disable");
+                if (DBG) Slog.d(TAG, "Reseting the mEnable flag for clean disable");
                 mEnable = false;
             }
         } catch (RemoteException e) {
-            Log.e(TAG, "getState()", e);
+            Slog.e(TAG, "getState()", e);
         }
     }
 
@@ -496,7 +494,7 @@
                 synchronized (this) {
                     ++mBleAppCount;
                 }
-                if (DBG) Log.d(TAG, "Registered for death Notification");
+                if (DBG) Slog.d(TAG, "Registered for death Notification");
             }
 
         } else  {
@@ -508,10 +506,10 @@
                 synchronized (this) {
                     if (mBleAppCount > 0) --mBleAppCount;
                 }
-                if (DBG) Log.d(TAG, "Unregistered for death Notification");
+                if (DBG) Slog.d(TAG, "Unregistered for death Notification");
             }
         }
-        if (DBG) Log.d(TAG, "Updated BleAppCount" + mBleAppCount);
+        if (DBG) Slog.d(TAG, "Updated BleAppCount" + mBleAppCount);
         if (mBleAppCount == 0 && mEnable) {
             disableBleScanMode();
         }
@@ -528,7 +526,7 @@
 
     /** @hide*/
     public boolean isBleAppPresent() {
-        if (DBG) Log.d(TAG, "isBleAppPresent() count: " + mBleAppCount);
+        if (DBG) Slog.d(TAG, "isBleAppPresent() count: " + mBleAppCount);
         return (mBleAppCount > 0);
     }
 
@@ -536,7 +534,7 @@
      * Action taken when GattService is turned off
      */
     private void onBluetoothGattServiceUp() {
-        if (DBG) Log.d(TAG,"BluetoothGatt Service is Up");
+        if (DBG) Slog.d(TAG,"BluetoothGatt Service is Up");
         try{
             if (isBleAppPresent() == false && mBluetooth != null
                   && mBluetooth.getState() == BluetoothAdapter.STATE_BLE_ON) {
@@ -548,7 +546,7 @@
                 Binder.restoreCallingIdentity(callingIdentity);
             }
         } catch(RemoteException e) {
-                Log.e(TAG,"Unable to call onServiceUp", e);
+                Slog.e(TAG,"Unable to call onServiceUp", e);
         }
     }
 
@@ -557,10 +555,10 @@
      * and turn off all service and stack if no LE app needs it
      */
     private void sendBrEdrDownCallback() {
-        if (DBG) Log.d(TAG,"Calling sendBrEdrDownCallback callbacks");
+        if (DBG) Slog.d(TAG,"Calling sendBrEdrDownCallback callbacks");
 
         if(mBluetooth == null) {
-            Log.w(TAG, "Bluetooth handle is null");
+            Slog.w(TAG, "Bluetooth handle is null");
             return;
         }
 
@@ -568,14 +566,14 @@
             try {
                 mBluetooth.onBrEdrDown();
             } catch(RemoteException e) {
-                Log.e(TAG, "Call to onBrEdrDown() failed.", e);
+                Slog.e(TAG, "Call to onBrEdrDown() failed.", e);
             }
         } else {
             // Need to stay at BLE ON. Disconnect all Gatt connections
             try{
                 mBluetoothGatt.unregAll();
             } catch(RemoteException e) {
-                Log.e(TAG, "Unable to disconnect all apps.", e);
+                Slog.e(TAG, "Unable to disconnect all apps.", e);
             }
         }
     }
@@ -586,7 +584,7 @@
                                                 "Need BLUETOOTH ADMIN permission");
 
         if (DBG) {
-            Log.d(TAG,"enableNoAutoConnect():  mBluetooth =" + mBluetooth +
+            Slog.d(TAG,"enableNoAutoConnect():  mBluetooth =" + mBluetooth +
                     " mBinding = " + mBinding);
         }
         int callingAppId = UserHandle.getAppId(Binder.getCallingUid());
@@ -606,14 +604,14 @@
     public boolean enable() {
         if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
             (!checkIfCallerIsForegroundUser())) {
-            Log.w(TAG,"enable(): not allowed for non-active and non system user");
+            Slog.w(TAG,"enable(): not allowed for non-active and non system user");
             return false;
         }
 
         mContext.enforceCallingOrSelfPermission(BLUETOOTH_ADMIN_PERM,
                                                 "Need BLUETOOTH ADMIN permission");
         if (DBG) {
-            Log.d(TAG,"enable():  mBluetooth =" + mBluetooth +
+            Slog.d(TAG,"enable():  mBluetooth =" + mBluetooth +
                     " mBinding = " + mBinding);
         }
 
@@ -623,7 +621,7 @@
             // waive WRITE_SECURE_SETTINGS permission check
             sendEnableMsg(false);
         }
-        if (DBG) Log.d(TAG, "enable returning");
+        if (DBG) Slog.d(TAG, "enable returning");
         return true;
     }
 
@@ -633,12 +631,12 @@
 
         if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
             (!checkIfCallerIsForegroundUser())) {
-            Log.w(TAG,"disable(): not allowed for non-active and non system user");
+            Slog.w(TAG,"disable(): not allowed for non-active and non system user");
             return false;
         }
 
         if (DBG) {
-            Log.d(TAG,"disable(): mBluetooth = " + mBluetooth +
+            Slog.d(TAG,"disable(): mBluetooth = " + mBluetooth +
                 " mBinding = " + mBinding);
         }
 
@@ -657,7 +655,7 @@
 
     public void unbindAndFinish() {
         if (DBG) {
-            Log.d(TAG,"unbindAndFinish(): " + mBluetooth +
+            Slog.d(TAG,"unbindAndFinish(): " + mBluetooth +
                 " mBinding = " + mBinding);
         }
 
@@ -669,10 +667,10 @@
                 try {
                     mBluetooth.unregisterCallback(mBluetoothCallback);
                 } catch (RemoteException re) {
-                    Log.e(TAG, "Unable to unregister BluetoothCallback",re);
+                    Slog.e(TAG, "Unable to unregister BluetoothCallback",re);
                 }
 
-                if (DBG) Log.d(TAG, "Sending unbind request.");
+                if (DBG) Slog.d(TAG, "Sending unbind request.");
                 mBluetoothBinder = null;
                 mBluetooth = null;
                 //Unbind
@@ -696,7 +694,7 @@
             IBluetoothProfileServiceConnection proxy) {
         if (!mEnable) {
             if (DBG) {
-                Log.d(TAG, "Trying to bind to profile: " + bluetoothProfile +
+                Slog.d(TAG, "Trying to bind to profile: " + bluetoothProfile +
                         ", while Bluetooth was disabled");
             }
             return false;
@@ -705,7 +703,7 @@
             ProfileServiceConnections psc = mProfileServices.get(new Integer(bluetoothProfile));
             if (psc == null) {
                 if (DBG) {
-                    Log.d(TAG, "Creating new ProfileServiceConnections object for"
+                    Slog.d(TAG, "Creating new ProfileServiceConnections object for"
                             + " profile: " + bluetoothProfile);
                 }
 
@@ -746,7 +744,7 @@
                 try {
                     mContext.unbindService(psc);
                 } catch (IllegalArgumentException e) {
-                    Log.e(TAG, "Unable to unbind service with intent: " + psc.mIntent, e);
+                    Slog.e(TAG, "Unable to unbind service with intent: " + psc.mIntent, e);
                 }
                 psc.removeAllProxies();
             }
@@ -759,9 +757,9 @@
      * PHASE_SYSTEM_SERVICES_READY.
      */
     public void handleOnBootPhase() {
-        if (DBG) Log.d(TAG, "Bluetooth boot completed");
+        if (DBG) Slog.d(TAG, "Bluetooth boot completed");
         if (mEnableExternal && isBluetoothPersistedStateOnBluetooth()) {
-            if (DBG) Log.d(TAG, "Auto-enabling Bluetooth.");
+            if (DBG) Slog.d(TAG, "Auto-enabling Bluetooth.");
             sendEnableMsg(mQuietEnableExternal);
         }
     }
@@ -770,8 +768,16 @@
      * Called when switching to a different foreground user.
      */
     public void handleOnSwitchUser(int userHandle) {
-        if (DBG) Log.d(TAG, "Bluetooth user switched");
-        mHandler.sendMessage(mHandler.obtainMessage(MESSAGE_USER_SWITCHED, userHandle, 0));
+        if (DBG) Slog.d(TAG, "User " + userHandle + " switched");
+        mHandler.obtainMessage(MESSAGE_USER_SWITCHED, userHandle, 0).sendToTarget();
+    }
+
+    /**
+     * Called when user is unlocked.
+     */
+    public void handleOnUnlockUser(int userHandle) {
+        if (DBG) Slog.d(TAG, "User " + userHandle + " unlocked");
+        mHandler.obtainMessage(MESSAGE_USER_UNLOCKED, userHandle, 0).sendToTarget();
     }
 
     /**
@@ -801,7 +807,7 @@
                 mHandler.sendMessageDelayed(msg, TIMEOUT_BIND_MS);
                 return true;
             }
-            Log.w(TAG, "Unable to bind with intent: " + mIntent);
+            Slog.w(TAG, "Unable to bind with intent: " + mIntent);
             return false;
         }
 
@@ -811,7 +817,7 @@
                 try{
                     proxy.onServiceConnected(mClassName, mService);
                 } catch (RemoteException e) {
-                    Log.e(TAG, "Unable to connect to proxy", e);
+                    Slog.e(TAG, "Unable to connect to proxy", e);
                 }
             } else {
                 if (!mHandler.hasMessages(MESSAGE_BIND_PROFILE_SERVICE, this)) {
@@ -828,11 +834,11 @@
                     try {
                         proxy.onServiceDisconnected(mClassName);
                     } catch (RemoteException e) {
-                        Log.e(TAG, "Unable to disconnect proxy", e);
+                        Slog.e(TAG, "Unable to disconnect proxy", e);
                     }
                 }
             } else {
-                Log.w(TAG, "Trying to remove a null proxy");
+                Slog.w(TAG, "Trying to remove a null proxy");
             }
         }
 
@@ -850,11 +856,11 @@
             try {
                 mService.linkToDeath(this, 0);
             } catch (RemoteException e) {
-                Log.e(TAG, "Unable to linkToDeath", e);
+                Slog.e(TAG, "Unable to linkToDeath", e);
             }
 
             if (mInvokingProxyCallbacks) {
-                Log.e(TAG, "Proxy callbacks already in progress.");
+                Slog.e(TAG, "Proxy callbacks already in progress.");
                 return;
             }
             mInvokingProxyCallbacks = true;
@@ -865,7 +871,7 @@
                     try {
                         mProxies.getBroadcastItem(i).onServiceConnected(className, service);
                     } catch (RemoteException e) {
-                        Log.e(TAG, "Unable to connect to proxy", e);
+                        Slog.e(TAG, "Unable to connect to proxy", e);
                     }
                 }
             } finally {
@@ -882,7 +888,7 @@
             mClassName = null;
 
             if (mInvokingProxyCallbacks) {
-                Log.e(TAG, "Proxy callbacks already in progress.");
+                Slog.e(TAG, "Proxy callbacks already in progress.");
                 return;
             }
             mInvokingProxyCallbacks = true;
@@ -893,7 +899,7 @@
                     try {
                         mProxies.getBroadcastItem(i).onServiceDisconnected(className);
                     } catch (RemoteException e) {
-                        Log.e(TAG, "Unable to disconnect from proxy", e);
+                        Slog.e(TAG, "Unable to disconnect from proxy", e);
                     }
                 }
             } finally {
@@ -905,7 +911,7 @@
         @Override
         public void binderDied() {
             if (DBG) {
-                Log.w(TAG, "Profile service for profile: " + mClassName
+                Slog.w(TAG, "Profile service for profile: " + mClassName
                         + " died.");
             }
             onServiceDisconnected(mClassName);
@@ -919,12 +925,12 @@
     private void sendBluetoothStateCallback(boolean isUp) {
         try {
             int n = mStateChangeCallbacks.beginBroadcast();
-            if (DBG) Log.d(TAG,"Broadcasting onBluetoothStateChange("+isUp+") to " + n + " receivers.");
+            if (DBG) Slog.d(TAG,"Broadcasting onBluetoothStateChange("+isUp+") to " + n + " receivers.");
             for (int i=0; i <n;i++) {
                 try {
                     mStateChangeCallbacks.getBroadcastItem(i).onBluetoothStateChange(isUp);
                 } catch (RemoteException e) {
-                    Log.e(TAG, "Unable to call onBluetoothStateChange() on callback #" + i , e);
+                    Slog.e(TAG, "Unable to call onBluetoothStateChange() on callback #" + i , e);
                 }
             }
         } finally {
@@ -936,15 +942,15 @@
      * Inform BluetoothAdapter instances that Adapter service is up
      */
     private void sendBluetoothServiceUpCallback() {
-        if (DBG) Log.d(TAG,"Calling onBluetoothServiceUp callbacks");
+        if (DBG) Slog.d(TAG,"Calling onBluetoothServiceUp callbacks");
         try {
             int n = mCallbacks.beginBroadcast();
-            Log.d(TAG,"Broadcasting onBluetoothServiceUp() to " + n + " receivers.");
+            Slog.d(TAG,"Broadcasting onBluetoothServiceUp() to " + n + " receivers.");
             for (int i=0; i <n;i++) {
                 try {
                     mCallbacks.getBroadcastItem(i).onBluetoothServiceUp(mBluetooth);
                 }  catch (RemoteException e) {
-                    Log.e(TAG, "Unable to call onBluetoothServiceUp() on callback #" + i, e);
+                    Slog.e(TAG, "Unable to call onBluetoothServiceUp() on callback #" + i, e);
                 }
             }
         } finally {
@@ -955,15 +961,15 @@
      * Inform BluetoothAdapter instances that Adapter service is down
      */
     private void sendBluetoothServiceDownCallback() {
-        if (DBG) Log.d(TAG,"Calling onBluetoothServiceDown callbacks");
+        if (DBG) Slog.d(TAG,"Calling onBluetoothServiceDown callbacks");
         try {
             int n = mCallbacks.beginBroadcast();
-            Log.d(TAG,"Broadcasting onBluetoothServiceDown() to " + n + " receivers.");
+            Slog.d(TAG,"Broadcasting onBluetoothServiceDown() to " + n + " receivers.");
             for (int i=0; i <n;i++) {
                 try {
                     mCallbacks.getBroadcastItem(i).onBluetoothServiceDown();
                 }  catch (RemoteException e) {
-                    Log.e(TAG, "Unable to call onBluetoothServiceDown() on callback #" + i, e);
+                    Slog.e(TAG, "Unable to call onBluetoothServiceDown() on callback #" + i, e);
                 }
             }
         } finally {
@@ -977,7 +983,7 @@
 
         if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
                 (!checkIfCallerIsForegroundUser())) {
-            Log.w(TAG,"getAddress(): not allowed for non-active and non system user");
+            Slog.w(TAG,"getAddress(): not allowed for non-active and non system user");
             return null;
         }
 
@@ -991,7 +997,7 @@
                 try {
                     return mBluetooth.getAddress();
                 } catch (RemoteException e) {
-                    Log.e(TAG, "getAddress(): Unable to retrieve address remotely..Returning cached address",e);
+                    Slog.e(TAG, "getAddress(): Unable to retrieve address remotely..Returning cached address",e);
                 }
             }
         }
@@ -1007,7 +1013,7 @@
 
         if ((Binder.getCallingUid() != Process.SYSTEM_UID) &&
             (!checkIfCallerIsForegroundUser())) {
-            Log.w(TAG,"getName(): not allowed for non-active and non system user");
+            Slog.w(TAG,"getName(): not allowed for non-active and non system user");
             return null;
         }
 
@@ -1016,7 +1022,7 @@
                 try {
                     return mBluetooth.getName();
                 } catch (RemoteException e) {
-                    Log.e(TAG, "getName(): Unable to retrieve name remotely..Returning cached name",e);
+                    Slog.e(TAG, "getName(): Unable to retrieve name remotely..Returning cached name",e);
                 }
             }
         }
@@ -1028,7 +1034,7 @@
 
     private class BluetoothServiceConnection implements ServiceConnection {
         public void onServiceConnected(ComponentName className, IBinder service) {
-            if (DBG) Log.d(TAG, "BluetoothServiceConnection: " + className.getClassName());
+            if (DBG) Slog.d(TAG, "BluetoothServiceConnection: " + className.getClassName());
             Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_SERVICE_CONNECTED);
             // TBD if (className.getClassName().equals(IBluetooth.class.getName())) {
             if (className.getClassName().equals("com.android.bluetooth.btservice.AdapterService")) {
@@ -1037,7 +1043,7 @@
             } else if (className.getClassName().equals("com.android.bluetooth.gatt.GattService")) {
                 msg.arg1 = SERVICE_IBLUETOOTHGATT;
             } else {
-                Log.e(TAG, "Unknown service connected: " + className.getClassName());
+                Slog.e(TAG, "Unknown service connected: " + className.getClassName());
                 return;
             }
             msg.obj = service;
@@ -1046,7 +1052,7 @@
 
         public void onServiceDisconnected(ComponentName className) {
             // Called if we unexpected disconnected.
-            if (DBG) Log.d(TAG, "BluetoothServiceConnection, disconnected: " +
+            if (DBG) Slog.d(TAG, "BluetoothServiceConnection, disconnected: " +
                            className.getClassName());
             Message msg = mHandler.obtainMessage(MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED);
             if (className.getClassName().equals("com.android.bluetooth.btservice.AdapterService")) {
@@ -1054,7 +1060,7 @@
             } else if (className.getClassName().equals("com.android.bluetooth.gatt.GattService")) {
                 msg.arg1 = SERVICE_IBLUETOOTHGATT;
             } else {
-                Log.e(TAG, "Unknown service disconnected: " + className.getClassName());
+                Slog.e(TAG, "Unknown service disconnected: " + className.getClassName());
                 return;
             }
             mHandler.sendMessage(msg);
@@ -1070,11 +1076,11 @@
 
         @Override
         public void handleMessage(Message msg) {
-            if (DBG) Log.d (TAG, "Message: " + msg.what);
+            if (DBG) Slog.d (TAG, "Message: " + msg.what);
             switch (msg.what) {
                 case MESSAGE_ENABLE:
                     if (DBG) {
-                        Log.d(TAG, "MESSAGE_ENABLE: mBluetooth = " + mBluetooth);
+                        Slog.d(TAG, "MESSAGE_ENABLE: mBluetooth = " + mBluetooth);
                     }
                     mHandler.removeMessages(MESSAGE_RESTART_BLUETOOTH_SERVICE);
                     mEnable = true;
@@ -1098,14 +1104,14 @@
                 {
                     IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
                     boolean added = mCallbacks.register(callback);
-                    Log.d(TAG,"Added callback: " +  (callback == null? "null": callback)  +":" +added );
+                    Slog.d(TAG,"Added callback: " +  (callback == null? "null": callback)  +":" +added );
                 }
                     break;
                 case MESSAGE_UNREGISTER_ADAPTER:
                 {
                     IBluetoothManagerCallback callback = (IBluetoothManagerCallback) msg.obj;
                     boolean removed = mCallbacks.unregister(callback);
-                    Log.d(TAG,"Removed callback: " +  (callback == null? "null": callback)  +":" + removed);
+                    Slog.d(TAG,"Removed callback: " +  (callback == null? "null": callback)  +":" + removed);
                     break;
                 }
                 case MESSAGE_REGISTER_STATE_CHANGE_CALLBACK:
@@ -1148,7 +1154,7 @@
                 }
                 case MESSAGE_BLUETOOTH_SERVICE_CONNECTED:
                 {
-                    if (DBG) Log.d(TAG,"MESSAGE_BLUETOOTH_SERVICE_CONNECTED: " + msg.arg1);
+                    if (DBG) Slog.d(TAG,"MESSAGE_BLUETOOTH_SERVICE_CONNECTED: " + msg.arg1);
 
                     IBinder service = (IBinder) msg.obj;
                     synchronized(mConnection) {
@@ -1169,17 +1175,17 @@
                             boolean enableHciSnoopLog = (Settings.Secure.getInt(mContentResolver,
                                 Settings.Secure.BLUETOOTH_HCI_LOG, 0) == 1);
                             if (!mBluetooth.configHciSnoopLog(enableHciSnoopLog)) {
-                                Log.e(TAG,"IBluetooth.configHciSnoopLog return false");
+                                Slog.e(TAG,"IBluetooth.configHciSnoopLog return false");
                             }
                         } catch (RemoteException e) {
-                            Log.e(TAG,"Unable to call configHciSnoopLog", e);
+                            Slog.e(TAG,"Unable to call configHciSnoopLog", e);
                         }
 
                         //Register callback object
                         try {
                             mBluetooth.registerCallback(mBluetoothCallback);
                         } catch (RemoteException re) {
-                            Log.e(TAG, "Unable to register BluetoothCallback",re);
+                            Slog.e(TAG, "Unable to register BluetoothCallback",re);
                         }
                         //Inform BluetoothAdapter instances that service is up
                         sendBluetoothServiceUpCallback();
@@ -1188,17 +1194,17 @@
                         try {
                             if (mQuietEnable == false) {
                                 if(!mBluetooth.enable()) {
-                                    Log.e(TAG,"IBluetooth.enable() returned false");
+                                    Slog.e(TAG,"IBluetooth.enable() returned false");
                                 }
                             }
                             else
                             {
                                 if(!mBluetooth.enableNoAutoConnect()) {
-                                    Log.e(TAG,"IBluetooth.enableNoAutoConnect() returned false");
+                                    Slog.e(TAG,"IBluetooth.enableNoAutoConnect() returned false");
                                 }
                             }
                         } catch (RemoteException e) {
-                            Log.e(TAG,"Unable to call enable()",e);
+                            Slog.e(TAG,"Unable to call enable()",e);
                         }
                     }
 
@@ -1210,7 +1216,7 @@
                     break;
                 }
                 case MESSAGE_TIMEOUT_BIND: {
-                    Log.e(TAG, "MESSAGE_TIMEOUT_BIND");
+                    Slog.e(TAG, "MESSAGE_TIMEOUT_BIND");
                     synchronized(mConnection) {
                         mBinding = false;
                     }
@@ -1220,7 +1226,7 @@
                 {
                     int prevState = msg.arg1;
                     int newState = msg.arg2;
-                    if (DBG) Log.d(TAG, "MESSAGE_BLUETOOTH_STATE_CHANGE: prevState = " + prevState + ", newState=" + newState);
+                    if (DBG) Slog.d(TAG, "MESSAGE_BLUETOOTH_STATE_CHANGE: prevState = " + prevState + ", newState=" + newState);
                     mState = newState;
                     bluetoothStateChangeHandler(prevState, newState);
                     // handle error state transition case from TURNING_ON to OFF
@@ -1239,7 +1245,7 @@
                         newState == BluetoothAdapter.STATE_BLE_ON) {
                         // bluetooth is working, reset the counter
                         if (mErrorRecoveryRetryCounter != 0) {
-                            Log.w(TAG, "bluetooth is recovered from error");
+                            Slog.w(TAG, "bluetooth is recovered from error");
                             mErrorRecoveryRetryCounter = 0;
                         }
                     }
@@ -1247,7 +1253,7 @@
                 }
                 case MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED:
                 {
-                    Log.e(TAG, "MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED: " + msg.arg1);
+                    Slog.e(TAG, "MESSAGE_BLUETOOTH_SERVICE_DISCONNECTED: " + msg.arg1);
                     synchronized(mConnection) {
                         if (msg.arg1 == SERVICE_IBLUETOOTH) {
                             // if service is unbinded already, do nothing and return
@@ -1257,7 +1263,7 @@
                             mBluetoothGatt = null;
                             break;
                         } else {
-                            Log.e(TAG, "Bad msg.arg1: " + msg.arg1);
+                            Slog.e(TAG, "Bad msg.arg1: " + msg.arg1);
                             break;
                         }
                     }
@@ -1292,7 +1298,7 @@
                 }
                 case MESSAGE_RESTART_BLUETOOTH_SERVICE:
                 {
-                    Log.d(TAG, "MESSAGE_RESTART_BLUETOOTH_SERVICE:"
+                    Slog.d(TAG, "MESSAGE_RESTART_BLUETOOTH_SERVICE:"
                         +" Restart IBluetooth service");
                     /* Enable without persisting the setting as
                      it doesnt change when IBluetooth
@@ -1304,19 +1310,17 @@
 
                 case MESSAGE_TIMEOUT_UNBIND:
                 {
-                    Log.e(TAG, "MESSAGE_TIMEOUT_UNBIND");
+                    Slog.e(TAG, "MESSAGE_TIMEOUT_UNBIND");
                     synchronized(mConnection) {
                         mUnbinding = false;
                     }
                     break;
                 }
 
-                case MESSAGE_USER_SWITCHED:
-                {
-                    if (DBG) {
-                        Log.d(TAG, "MESSAGE_USER_SWITCHED");
-                    }
+                case MESSAGE_USER_SWITCHED: {
+                    if (DBG) Slog.d(TAG, "MESSAGE_USER_SWITCHED");
                     mHandler.removeMessages(MESSAGE_USER_SWITCHED);
+
                     /* disable and enable BT when detect a user switch */
                     if (mEnable && mBluetooth != null) {
                         synchronized (mConnection) {
@@ -1325,7 +1329,7 @@
                                 try {
                                     mBluetooth.unregisterCallback(mBluetoothCallback);
                                 } catch (RemoteException re) {
-                                    Log.e(TAG, "Unable to unregister",re);
+                                    Slog.e(TAG, "Unable to unregister",re);
                                 }
                             }
                         }
@@ -1379,11 +1383,25 @@
                         // delay sending MESSAGE_USER_SWITCHED
                         mHandler.sendMessageDelayed(userMsg, USER_SWITCHED_TIME_MS);
                         if (DBG) {
-                            Log.d(TAG, "delay MESSAGE_USER_SWITCHED " + userMsg.arg2);
+                            Slog.d(TAG, "delay MESSAGE_USER_SWITCHED " + userMsg.arg2);
                         }
                     }
                     break;
                 }
+                case MESSAGE_USER_UNLOCKED: {
+                    if (DBG) Slog.d(TAG, "MESSAGE_USER_UNLOCKED");
+                    mHandler.removeMessages(MESSAGE_USER_SWITCHED);
+
+                    synchronized (mConnection) {
+                        if (mEnable && !mBinding && (mBluetooth == null)) {
+                            // We should be connected, but we gave up for some
+                            // reason; maybe the Bluetooth service wasn't encryption
+                            // aware, so try binding again.
+                            if (DBG) Slog.d(TAG, "Enabled but not bound; retrying after unlock");
+                            handleEnable(mQuietEnable);
+                        }
+                    }
+                }
             }
         }
     }
@@ -1408,16 +1426,16 @@
                 try {
                     if (!mQuietEnable) {
                         if(!mBluetooth.enable()) {
-                            Log.e(TAG,"IBluetooth.enable() returned false");
+                            Slog.e(TAG,"IBluetooth.enable() returned false");
                         }
                     }
                     else {
                         if(!mBluetooth.enableNoAutoConnect()) {
-                            Log.e(TAG,"IBluetooth.enableNoAutoConnect() returned false");
+                            Slog.e(TAG,"IBluetooth.enableNoAutoConnect() returned false");
                         }
                     }
                 } catch (RemoteException e) {
-                    Log.e(TAG,"Unable to call enable()",e);
+                    Slog.e(TAG,"Unable to call enable()",e);
                 }
             }
         }
@@ -1427,7 +1445,7 @@
         ComponentName comp = intent.resolveSystemService(mContext.getPackageManager(), 0);
         intent.setComponent(comp);
         if (comp == null || !mContext.bindServiceAsUser(intent, conn, flags, user)) {
-            Log.e(TAG, "Fail to bind to: " + intent);
+            Slog.e(TAG, "Fail to bind to: " + intent);
             return false;
         }
         return true;
@@ -1436,14 +1454,14 @@
     private void handleDisable() {
         synchronized(mConnection) {
             if (mBluetooth != null) {
-                if (DBG) Log.d(TAG,"Sending off request.");
+                if (DBG) Slog.d(TAG,"Sending off request.");
 
                 try {
                     if(!mBluetooth.disable()) {
-                        Log.e(TAG,"IBluetooth.disable() returned false");
+                        Slog.e(TAG,"IBluetooth.disable() returned false");
                     }
                 } catch (RemoteException e) {
-                    Log.e(TAG,"Unable to call disable()",e);
+                    Slog.e(TAG,"Unable to call disable()",e);
                 }
             }
         }
@@ -1466,7 +1484,7 @@
                     callingAppId == Process.NFC_UID ||
                     callingAppId == mSystemUiUid;
             if (DBG) {
-                Log.d(TAG, "checkIfCallerIsForegroundUser: valid=" + valid
+                Slog.d(TAG, "checkIfCallerIsForegroundUser: valid=" + valid
                     + " callingUser=" + callingUser
                     + " parentUser=" + parentUser
                     + " foregroundUser=" + foregroundUser);
@@ -1478,7 +1496,7 @@
     }
 
     private void sendBleStateChanged(int prevState, int newState) {
-        if (DBG) Log.d(TAG,"BLE State Change Intent: " + prevState + " -> " + newState);
+        if (DBG) Slog.d(TAG,"BLE State Change Intent: " + prevState + " -> " + newState);
         // Send broadcast message to everyone else
         Intent intent = new Intent(BluetoothAdapter.ACTION_BLE_STATE_CHANGED);
         intent.putExtra(BluetoothAdapter.EXTRA_PREVIOUS_STATE, prevState);
@@ -1498,9 +1516,9 @@
 
                 if (newState == BluetoothAdapter.STATE_OFF) {
                     // If Bluetooth is off, send service down event to proxy objects, and unbind
-                    if (DBG) Log.d(TAG, "Bluetooth is complete turn off");
+                    if (DBG) Slog.d(TAG, "Bluetooth is complete turn off");
                     if (canUnbindBluetoothService()) {
-                        if (DBG) Log.d(TAG, "Good to unbind!");
+                        if (DBG) Slog.d(TAG, "Good to unbind!");
                         sendBluetoothServiceDownCallback();
                         unbindAndFinish();
                         sendBleStateChanged(prevState, newState);
@@ -1510,12 +1528,12 @@
 
                 } else if (!intermediate_off) {
                     // connect to GattService
-                    if (DBG) Log.d(TAG, "Bluetooth is in LE only mode");
+                    if (DBG) Slog.d(TAG, "Bluetooth is in LE only mode");
                     if (mBluetoothGatt != null) {
-                        if (DBG) Log.d(TAG, "Calling BluetoothGattServiceUp");
+                        if (DBG) Slog.d(TAG, "Calling BluetoothGattServiceUp");
                         onBluetoothGattServiceUp();
                     } else {
-                        if (DBG) Log.d(TAG, "Binding Bluetooth GATT service");
+                        if (DBG) Slog.d(TAG, "Binding Bluetooth GATT service");
                         if (mContext.getPackageManager().hasSystemFeature(
                                                         PackageManager.FEATURE_BLUETOOTH_LE)) {
                             Intent i = new Intent(IBluetoothGatt.class.getName());
@@ -1527,7 +1545,7 @@
                     isStandardBroadcast = false;
 
                 } else if (intermediate_off){
-                    if (DBG) Log.d(TAG, "Intermediate off, back to LE only mode");
+                    if (DBG) Slog.d(TAG, "Intermediate off, back to LE only mode");
                     // For LE only mode, broadcast as is
                     sendBleStateChanged(prevState, newState);
                     sendBluetoothStateCallback(false); // BT is OFF for general users
@@ -1583,7 +1601,7 @@
                         if (mBluetooth.getState() != BluetoothAdapter.STATE_ON) return true;
                     }
                 } catch (RemoteException e) {
-                    Log.e(TAG, "getState()", e);
+                    Slog.e(TAG, "getState()", e);
                     break;
                 }
             }
@@ -1594,7 +1612,7 @@
             }
             i++;
         }
-        Log.e(TAG,"waitForOnOff time out");
+        Slog.e(TAG,"waitForOnOff time out");
         return false;
     }
 
@@ -1619,21 +1637,21 @@
                 if (mHandler.hasMessages(MESSAGE_BLUETOOTH_STATE_CHANGE)) return false;
                 return (mBluetooth.getState() == BluetoothAdapter.STATE_OFF);
             } catch (RemoteException e) {
-                Log.e(TAG, "getState()", e);
+                Slog.e(TAG, "getState()", e);
             }
         }
         return false;
     }
 
     private void recoverBluetoothServiceFromError() {
-        Log.e(TAG,"recoverBluetoothServiceFromError");
+        Slog.e(TAG,"recoverBluetoothServiceFromError");
         synchronized (mConnection) {
             if (mBluetooth != null) {
                 //Unregister callback object
                 try {
                     mBluetooth.unregisterCallback(mBluetoothCallback);
                 } catch (RemoteException re) {
-                    Log.e(TAG, "Unable to unregister",re);
+                    Slog.e(TAG, "Unable to unregister",re);
                 }
             }
         }
diff --git a/services/core/java/com/android/server/BluetoothService.java b/services/core/java/com/android/server/BluetoothService.java
index 019d03d..1bf4e3a 100644
--- a/services/core/java/com/android/server/BluetoothService.java
+++ b/services/core/java/com/android/server/BluetoothService.java
@@ -18,10 +18,8 @@
 
 import android.bluetooth.BluetoothAdapter;
 import android.content.Context;
-import android.util.Log;
 
 class BluetoothService extends SystemService {
-    private static final String TAG = "BluetoothService";
     private BluetoothManagerService mBluetoothManagerService;
 
     public BluetoothService(Context context) {
@@ -36,17 +34,20 @@
     @Override
     public void onBootPhase(int phase) {
         if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) {
-            Log.d(TAG, "onBootPhase: PHASE_SYSTEM_SERVICES_READY");
-            publishBinderService(BluetoothAdapter.BLUETOOTH_MANAGER_SERVICE, mBluetoothManagerService);
+            publishBinderService(BluetoothAdapter.BLUETOOTH_MANAGER_SERVICE,
+                    mBluetoothManagerService);
         } else if (phase == SystemService.PHASE_ACTIVITY_MANAGER_READY) {
-            Log.d(TAG, "onBootPhase: PHASE_ACTIVITY_MANAGER_READY");
             mBluetoothManagerService.handleOnBootPhase();
         }
     }
 
     @Override
     public void onSwitchUser(int userHandle) {
-        Log.d(TAG, "onSwitchUser: switching to user " + userHandle);
         mBluetoothManagerService.handleOnSwitchUser(userHandle);
     }
+
+    @Override
+    public void onUnlockUser(int userHandle) {
+        mBluetoothManagerService.handleOnUnlockUser(userHandle);
+    }
 }
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 079b2f2..86040c2 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -164,7 +164,7 @@
         implements PendingIntent.OnFinished {
     private static final String TAG = "ConnectivityService";
 
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final boolean VDBG = false;
 
     private static final boolean LOGD_RULES = false;
@@ -455,7 +455,7 @@
      */
     private class LegacyTypeTracker {
 
-        private static final boolean DBG = true;
+        private static final boolean DBG = false;
         private static final boolean VDBG = false;
         private static final String TAG = "CSLegacyTypeTracker";
 
diff --git a/services/core/java/com/android/server/NsdService.java b/services/core/java/com/android/server/NsdService.java
index f4c6225..11aef17 100644
--- a/services/core/java/com/android/server/NsdService.java
+++ b/services/core/java/com/android/server/NsdService.java
@@ -58,7 +58,7 @@
     private static final String TAG = "NsdService";
     private static final String MDNS_TAG = "mDnsConnector";
 
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
 
     private Context mContext;
     private ContentResolver mContentResolver;
diff --git a/services/core/java/com/android/server/TextServicesManagerService.java b/services/core/java/com/android/server/TextServicesManagerService.java
index c4b4cbe..0f9a25b 100644
--- a/services/core/java/com/android/server/TextServicesManagerService.java
+++ b/services/core/java/com/android/server/TextServicesManagerService.java
@@ -76,11 +76,9 @@
     private final Context mContext;
     private boolean mSystemReady;
     private final TextServicesMonitor mMonitor;
-    private final HashMap<String, SpellCheckerInfo> mSpellCheckerMap =
-            new HashMap<String, SpellCheckerInfo>();
-    private final ArrayList<SpellCheckerInfo> mSpellCheckerList = new ArrayList<SpellCheckerInfo>();
-    private final HashMap<String, SpellCheckerBindGroup> mSpellCheckerBindGroups =
-            new HashMap<String, SpellCheckerBindGroup>();
+    private final HashMap<String, SpellCheckerInfo> mSpellCheckerMap = new HashMap<>();
+    private final ArrayList<SpellCheckerInfo> mSpellCheckerList = new ArrayList<>();
+    private final HashMap<String, SpellCheckerBindGroup> mSpellCheckerBindGroups = new HashMap<>();
     private final TextServicesSettings mSettings;
 
     public void systemRunning() {
@@ -615,8 +613,7 @@
             Slog.d(TAG, "FinishSpellCheckerService");
         }
         synchronized(mSpellCheckerMap) {
-            final ArrayList<SpellCheckerBindGroup> removeList =
-                    new ArrayList<SpellCheckerBindGroup>();
+            final ArrayList<SpellCheckerBindGroup> removeList = new ArrayList<>();
             for (SpellCheckerBindGroup group : mSpellCheckerBindGroups.values()) {
                 if (group == null) continue;
                 // Use removeList to avoid modifying mSpellCheckerBindGroups in this loop.
@@ -811,7 +808,7 @@
         private final String TAG = SpellCheckerBindGroup.class.getSimpleName();
         private final InternalServiceConnection mInternalConnection;
         private final CopyOnWriteArrayList<InternalDeathRecipient> mListeners =
-                new CopyOnWriteArrayList<InternalDeathRecipient>();
+                new CopyOnWriteArrayList<>();
         public boolean mBound;
         public ISpellCheckerService mSpellChecker;
         public boolean mConnected;
@@ -885,8 +882,7 @@
             }
             synchronized(mSpellCheckerMap) {
                 final int size = mListeners.size();
-                final ArrayList<InternalDeathRecipient> removeList =
-                        new ArrayList<InternalDeathRecipient>();
+                final ArrayList<InternalDeathRecipient> removeList = new ArrayList<>();
                 for (int i = 0; i < size; ++i) {
                     final InternalDeathRecipient tempRecipient = mListeners.get(i);
                     if(tempRecipient.hasSpellCheckerListener(listener)) {
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index dee3d02..8df5b2c 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -101,6 +101,8 @@
 import android.app.PendingIntent;
 import android.app.ProfilerInfo;
 import android.app.admin.DevicePolicyManager;
+import android.app.admin.DevicePolicyManagerInternal;
+import android.app.admin.IDevicePolicyManager;
 import android.app.assist.AssistContent;
 import android.app.assist.AssistStructure;
 import android.app.backup.IBackupManager;
@@ -4374,7 +4376,7 @@
                     AppGlobals.getPackageManager().queryIntentActivities(
                             intent, r.resolvedType,
                             PackageManager.MATCH_DEFAULT_ONLY | STOCK_PM_FLAGS,
-                            UserHandle.getCallingUserId());
+                            UserHandle.getCallingUserId()).getList();
 
                 // Look for the original activity in the list...
                 final int N = resolves != null ? resolves.size() : 0;
@@ -5261,9 +5263,13 @@
     public boolean clearApplicationUserData(final String packageName,
             final IPackageDataObserver observer, int userId) {
         enforceNotIsolatedCaller("clearApplicationUserData");
-        if (packageName != null && packageName.equals(mDeviceOwnerName)) {
-            throw new SecurityException("Clearing DeviceOwner data is forbidden.");
+
+        final DevicePolicyManagerInternal dpmi = LocalServices
+                .getService(DevicePolicyManagerInternal.class);
+        if (dpmi != null && dpmi.hasDeviceOwnerOrProfileOwner(packageName, userId)) {
+            throw new SecurityException("Cannot clear data for a device owner or a profile owner");
         }
+
         int uid = Binder.getCallingUid();
         int pid = Binder.getCallingPid();
         userId = mUserController.handleIncomingUser(pid, uid, userId, false,
@@ -6287,9 +6293,10 @@
             // 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.backupMode == BackupRecord.RESTORE)
-                        || (mBackupTarget.backupMode == BackupRecord.RESTORE_FULL)
-                        || (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL);
+                isRestrictedBackupMode = mBackupTarget.appInfo.uid >= Process.FIRST_APPLICATION_UID
+                        && ((mBackupTarget.backupMode == BackupRecord.RESTORE)
+                                || (mBackupTarget.backupMode == BackupRecord.RESTORE_FULL)
+                                || (mBackupTarget.backupMode == BackupRecord.BACKUP_FULL));
             }
 
             notifyPackageUse(app.instrumentationInfo != null
@@ -9901,11 +9908,11 @@
     private final List<ProviderInfo> generateApplicationProvidersLocked(ProcessRecord app) {
         List<ProviderInfo> providers = null;
         try {
-            ParceledListSlice<ProviderInfo> slice = AppGlobals.getPackageManager()
+            providers = AppGlobals.getPackageManager()
                     .queryContentProviders(app.processName, app.uid,
                             STOCK_PM_FLAGS | PackageManager.GET_URI_PERMISSION_PATTERNS
-                                    | MATCH_DEBUG_TRIAGED_MISSING);
-            providers = slice != null ? slice.getList() : null;
+                                    | MATCH_DEBUG_TRIAGED_MISSING)
+                    .getList();
         } catch (RemoteException ex) {
         }
         if (DEBUG_MU) Slog.v(TAG_MU,
@@ -10856,7 +10863,7 @@
         synchronized (this) {
             try {
                 final List<ApplicationInfo> apps = AppGlobals.getPackageManager()
-                        .getPersistentApplications(STOCK_PM_FLAGS | matchFlags);
+                        .getPersistentApplications(STOCK_PM_FLAGS | matchFlags).getList();
                 for (ApplicationInfo app : apps) {
                     if (!"android".equals(app.packageName)) {
                         addAppLocked(app, false, null /* ABI override */);
@@ -12607,7 +12614,7 @@
         List<ResolveInfo> ris = null;
         try {
             ris = AppGlobals.getPackageManager().queryIntentReceivers(
-                    intent, null, MATCH_SYSTEM_ONLY, UserHandle.USER_SYSTEM);
+                    intent, null, MATCH_SYSTEM_ONLY, UserHandle.USER_SYSTEM).getList();
         } catch (RemoteException e) {
         }
         if (ris == null) {
@@ -16956,7 +16963,7 @@
                     continue;
                 }
                 List<ResolveInfo> newReceivers = AppGlobals.getPackageManager()
-                        .queryIntentReceivers(intent, resolvedType, pmFlags, user);
+                        .queryIntentReceivers(intent, resolvedType, pmFlags, user).getList();
                 if (user != UserHandle.USER_SYSTEM && newReceivers != null) {
                     // If this is not the system user, we need to check for
                     // any receivers that should be filtered out.
diff --git a/services/core/java/com/android/server/am/ActivityMetricsLogger.java b/services/core/java/com/android/server/am/ActivityMetricsLogger.java
index 0e6dd28..43e1bdf 100644
--- a/services/core/java/com/android/server/am/ActivityMetricsLogger.java
+++ b/services/core/java/com/android/server/am/ActivityMetricsLogger.java
@@ -61,7 +61,7 @@
         mLastLogTimeSecs = now;
 
         ActivityStack stack = mSupervisor.getStack(DOCKED_STACK_ID);
-        if (stack != null && stack.getStackVisibilityLocked() != STACK_INVISIBLE) {
+        if (stack != null && stack.getStackVisibilityLocked(null) != STACK_INVISIBLE) {
             mWindowState = WINDOW_STATE_SIDE_BY_SIDE;
             return;
         }
diff --git a/services/core/java/com/android/server/am/ActivityStack.java b/services/core/java/com/android/server/am/ActivityStack.java
index d1e1d27..e50722a 100644
--- a/services/core/java/com/android/server/am/ActivityStack.java
+++ b/services/core/java/com/android/server/am/ActivityStack.java
@@ -66,7 +66,6 @@
 import android.content.Intent;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
 import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.net.Uri;
@@ -1368,7 +1367,7 @@
             for (int i = stacks.size() - 1; i >= 0; --i) {
                 ActivityStack stack = stacks.get(i);
                 if (stack != this && stack.isFocusable()
-                        && stack.getStackVisibilityLocked() != STACK_INVISIBLE) {
+                        && stack.getStackVisibilityLocked(null) != STACK_INVISIBLE) {
                     return stack;
                 }
             }
@@ -1387,21 +1386,26 @@
         return false;
     }
 
-    private boolean hasTranslucentActivity(ActivityStack stack) {
-        final ArrayList<TaskRecord> tasks = stack.getAllTasks();
-        for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
-            final TaskRecord task = tasks.get(taskNdx);
+    /**
+     * Returns true if the stack is translucent and can have other contents visible behind it if
+     * needed. A stack is considered translucent if it don't contain a visible or
+     * starting (about to be visible) activity that is fullscreen (opaque).
+     * @param starting The currently starting activity or null if there is none.
+     */
+    private boolean isStackTranslucent(ActivityRecord starting) {
+        for (int taskNdx = mTaskHistory.size() - 1; taskNdx >= 0; --taskNdx) {
+            final TaskRecord task = mTaskHistory.get(taskNdx);
             final ArrayList<ActivityRecord> activities = task.mActivities;
             for (int activityNdx = activities.size() - 1; activityNdx >= 0; --activityNdx) {
                 final ActivityRecord r = activities.get(activityNdx);
 
                 // Conditions for an activity to obscure the stack we're
                 // examining:
-                // 1. Not Finishing AND Visible AND:
+                // 1. Not Finishing AND (Visible or the Starting activity) AND:
                 // 2. Either:
                 // - Full Screen Activity OR
                 // - On top of Home and our stack is NOT home
-                if (!r.finishing && r.visible && (r.fullscreen ||
+                if (!r.finishing && (r.visible || r == starting) && (r.fullscreen ||
                         (!isHomeStack() && r.frontOfTask && task.isOverHomeStack()))) {
                     return false;
                 }
@@ -1413,8 +1417,9 @@
     /**
      * Returns stack's visibility: {@link #STACK_INVISIBLE}, {@link #STACK_VISIBLE} or
      * {@link #STACK_VISIBLE_ACTIVITY_BEHIND}.
+     * @param starting The currently starting activity or null if there is none.
      */
-    int getStackVisibilityLocked() {
+    int getStackVisibilityLocked(ActivityRecord starting) {
         if (!isAttached()) {
             return STACK_INVISIBLE;
         }
@@ -1470,7 +1475,7 @@
         }
 
         if (focusedStackId == FULLSCREEN_WORKSPACE_STACK_ID
-                && hasTranslucentActivity(focusedStack)) {
+                && focusedStack.isStackTranslucent(starting)) {
             // Stacks behind the fullscreen stack with a translucent activity are always
             // visible so they can act as a backdrop to the translucent activity.
             // For example, dialog activities
@@ -1505,7 +1510,7 @@
                 return STACK_INVISIBLE;
             }
 
-            if (!hasTranslucentActivity(stack)) {
+            if (!stack.isStackTranslucent(starting)) {
                 return STACK_INVISIBLE;
             }
         }
@@ -1543,7 +1548,7 @@
         // If the top activity is not fullscreen, then we need to
         // make sure any activities under it are now visible.
         boolean aboveTop = top != null;
-        final int stackVisibility = getStackVisibilityLocked();
+        final int stackVisibility = getStackVisibilityLocked(starting);
         final boolean stackInvisible = stackVisibility != STACK_VISIBLE;
         final boolean stackVisibleBehind = stackVisibility == STACK_VISIBLE_ACTIVITY_BEHIND;
         boolean behindFullscreenActivity = stackInvisible;
@@ -3806,7 +3811,8 @@
     void releaseBackgroundResources(ActivityRecord r) {
         if (hasVisibleBehindActivity() &&
                 !mHandler.hasMessages(RELEASE_BACKGROUND_RESOURCES_TIMEOUT_MSG)) {
-            if (r == topRunningActivityLocked() && getStackVisibilityLocked() == STACK_VISIBLE) {
+            if (r == topRunningActivityLocked()
+                    && getStackVisibilityLocked(null) == STACK_VISIBLE) {
                 // Don't release the top activity if it has requested to run behind the next
                 // activity and the stack is currently visible.
                 return;
diff --git a/services/core/java/com/android/server/am/ActivityStarter.java b/services/core/java/com/android/server/am/ActivityStarter.java
index 46389e2..83ad2a7 100644
--- a/services/core/java/com/android/server/am/ActivityStarter.java
+++ b/services/core/java/com/android/server/am/ActivityStarter.java
@@ -1757,7 +1757,7 @@
             // and if yes, we will launch into that stack. If not, we just put the new
             // activity into parent's stack, because we can't find a better place.
             final ActivityStack stack = mSupervisor.getStack(DOCKED_STACK_ID);
-            if (stack != null && stack.getStackVisibilityLocked() == STACK_INVISIBLE) {
+            if (stack != null && stack.getStackVisibilityLocked(r) == STACK_INVISIBLE) {
                 // There is a docked stack, but it isn't visible, so we can't launch into that.
                 return null;
             } else {
diff --git a/services/core/java/com/android/server/am/AppErrorDialog.java b/services/core/java/com/android/server/am/AppErrorDialog.java
index 86cdbcc..ddfab4d 100644
--- a/services/core/java/com/android/server/am/AppErrorDialog.java
+++ b/services/core/java/com/android/server/am/AppErrorDialog.java
@@ -25,6 +25,7 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
+import android.text.BidiFormatter;
 import android.util.Slog;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -68,18 +69,21 @@
         mProc = data.proc;
         mResult = data.result;
         mRepeating = data.repeating;
+        BidiFormatter bidi = BidiFormatter.getInstance();
+
         if ((mProc.pkgList.size() == 1) &&
                 (mName = context.getPackageManager().getApplicationLabel(mProc.info)) != null) {
             setTitle(res.getString(
                     mRepeating ? com.android.internal.R.string.aerr_application_repeated
                             : com.android.internal.R.string.aerr_application,
-                    mName.toString(), mProc.info.processName));
+                    bidi.unicodeWrap(mName.toString()),
+                    bidi.unicodeWrap(mProc.info.processName)));
         } else {
             mName = mProc.processName;
             setTitle(res.getString(
                     mRepeating ? com.android.internal.R.string.aerr_process_repeated
                             : com.android.internal.R.string.aerr_process,
-                    mName.toString()));
+                    bidi.unicodeWrap(mName.toString())));
         }
 
         setCancelable(false);
diff --git a/services/core/java/com/android/server/am/AppNotRespondingDialog.java b/services/core/java/com/android/server/am/AppNotRespondingDialog.java
index 6d1d9f3..c6befd7 100644
--- a/services/core/java/com/android/server/am/AppNotRespondingDialog.java
+++ b/services/core/java/com/android/server/am/AppNotRespondingDialog.java
@@ -27,6 +27,7 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
+import android.text.BidiFormatter;
 import android.util.Slog;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -84,9 +85,11 @@
             }
         }
 
+        BidiFormatter bidi = BidiFormatter.getInstance();
+
         setTitle(name2 != null
-                ? res.getString(resid, name1.toString(), name2.toString())
-                : res.getString(resid, name1.toString()));
+                ? res.getString(resid, bidi.unicodeWrap(name1.toString()), bidi.unicodeWrap(name2.toString()))
+                : res.getString(resid, bidi.unicodeWrap(name1.toString())));
 
         if (aboveSystem) {
             getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ERROR);
diff --git a/services/core/java/com/android/server/audio/RecordingActivityMonitor.java b/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
index 7e76ac4..86dcd0f 100644
--- a/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
+++ b/services/core/java/com/android/server/audio/RecordingActivityMonitor.java
@@ -54,12 +54,15 @@
         if (MediaRecorder.isSystemOnlyAudioSource(source)) {
             return;
         }
-        if (updateSnapshot(event, session, source, recordingInfo)) {
-            final Iterator<RecMonitorClient> clientIterator = mClients.iterator();
+        final AudioRecordConfiguration[] configs =
+                updateSnapshot(event, session, source, recordingInfo);
+        if (configs != null){
             synchronized(mClients) {
+                final Iterator<RecMonitorClient> clientIterator = mClients.iterator();
                 while (clientIterator.hasNext()) {
                     try {
-                        clientIterator.next().mDispatcherCb.dispatchRecordingConfigChange();
+                        clientIterator.next().mDispatcherCb.dispatchRecordingConfigChange(
+                                configs);
                     } catch (RemoteException e) {
                         Log.w(TAG, "Could not call dispatchRecordingConfigChange() on client", e);
                     }
@@ -115,14 +118,19 @@
      * @param recordingFormat see
      *     {@link AudioSystem.AudioRecordingCallback#onRecordingConfigurationChanged(int, int, int, int[])}
      *     for the definition of the contents of the array
-     * @return true if the list of active recording sessions has been modified, false otherwise.
+     * @return null if the list of active recording sessions has not been modified, an array
+     *     with the current active configurations otherwise.
      */
-    private boolean updateSnapshot(int event, int session, int source, int[] recordingInfo) {
+    private AudioRecordConfiguration[] updateSnapshot(int event, int session, int source,
+            int[] recordingInfo) {
+        final boolean configChanged;
+        final AudioRecordConfiguration[] configs;
         synchronized(mRecordConfigs) {
             switch (event) {
             case AudioManager.RECORD_CONFIG_EVENT_STOP:
                 // return failure if an unknown recording session stopped
-                return (mRecordConfigs.remove(new Integer(session)) != null);
+                configChanged = (mRecordConfigs.remove(new Integer(session)) != null);
+                break;
             case AudioManager.RECORD_CONFIG_EVENT_START:
                 final AudioFormat clientFormat = new AudioFormat.Builder()
                         .setEncoding(recordingInfo[0])
@@ -143,25 +151,32 @@
                             new AudioRecordConfiguration(session, source,
                                     clientFormat, deviceFormat, patchHandle);
                     if (updatedConfig.equals(mRecordConfigs.get(sessionKey))) {
-                        return false;
+                        configChanged = false;
                     } else {
                         // config exists but has been modified
                         mRecordConfigs.remove(sessionKey);
                         mRecordConfigs.put(sessionKey, updatedConfig);
-                        return true;
+                        configChanged = true;
                     }
                 } else {
                     mRecordConfigs.put(sessionKey,
                             new AudioRecordConfiguration(session, source,
                                     clientFormat, deviceFormat, patchHandle));
-                    return true;
+                    configChanged = true;
                 }
+                break;
             default:
                 Log.e(TAG, String.format("Unknown event %d for session %d, source %d",
                         event, session, source));
-                return false;
+                configChanged = false;
+            }
+            if (configChanged) {
+                configs = mRecordConfigs.values().toArray(new AudioRecordConfiguration[0]);
+            } else {
+                configs = null;
             }
         }
+        return configs;
     }
 
     /**
diff --git a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
index 90c9ddf..9e1f6b8 100644
--- a/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
+++ b/services/core/java/com/android/server/connectivity/KeepaliveTracker.java
@@ -60,7 +60,7 @@
 public class KeepaliveTracker {
 
     private static final String TAG = "KeepaliveTracker";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
 
     public static final String PERMISSION = android.Manifest.permission.PACKET_KEEPALIVE_OFFLOAD;
 
diff --git a/services/core/java/com/android/server/connectivity/NetworkMonitor.java b/services/core/java/com/android/server/connectivity/NetworkMonitor.java
index fb8b110..73da427 100644
--- a/services/core/java/com/android/server/connectivity/NetworkMonitor.java
+++ b/services/core/java/com/android/server/connectivity/NetworkMonitor.java
@@ -76,7 +76,7 @@
  * {@hide}
  */
 public class NetworkMonitor extends StateMachine {
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final String TAG = "NetworkMonitor";
     private static final String DEFAULT_SERVER = "connectivitycheck.gstatic.com";
     private static final int SOCKET_TIMEOUT_MS = 10000;
diff --git a/services/core/java/com/android/server/connectivity/PermissionMonitor.java b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
index debda14..22cefd1 100644
--- a/services/core/java/com/android/server/connectivity/PermissionMonitor.java
+++ b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
@@ -54,7 +54,7 @@
  */
 public class PermissionMonitor {
     private static final String TAG = "PermissionMonitor";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final boolean SYSTEM = true;
     private static final boolean NETWORK = false;
 
diff --git a/services/core/java/com/android/server/connectivity/Tethering.java b/services/core/java/com/android/server/connectivity/Tethering.java
index 760b218..4eecc81 100644
--- a/services/core/java/com/android/server/connectivity/Tethering.java
+++ b/services/core/java/com/android/server/connectivity/Tethering.java
@@ -90,7 +90,7 @@
 
     private Context mContext;
     private final static String TAG = "Tethering";
-    private final static boolean DBG = true;
+    private final static boolean DBG = false;
     private final static boolean VDBG = false;
 
     // TODO - remove both of these - should be part of interface inspection/selection stuff
diff --git a/services/core/java/com/android/server/net/IpConfigStore.java b/services/core/java/com/android/server/net/IpConfigStore.java
index 9f1435a..2807ec8 100644
--- a/services/core/java/com/android/server/net/IpConfigStore.java
+++ b/services/core/java/com/android/server/net/IpConfigStore.java
@@ -40,7 +40,7 @@
 
 public class IpConfigStore {
     private static final String TAG = "IpConfigStore";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
 
     protected final DelayedDiskWrite mWriter;
 
diff --git a/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java b/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java
index d6b59f9..9ec6da0 100644
--- a/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java
+++ b/services/core/java/com/android/server/pm/DefaultPermissionGrantPolicy.java
@@ -714,7 +714,8 @@
     private PackageParser.Package getDefaultSystemHandlerServicePackageLPr(
             Intent intent, int userId) {
         List<ResolveInfo> handlers = mService.queryIntentServices(intent,
-                intent.resolveType(mService.mContext.getContentResolver()), DEFAULT_FLAGS, userId);
+                intent.resolveType(mService.mContext.getContentResolver()), DEFAULT_FLAGS, userId)
+                .getList();
         if (handlers == null) {
             return null;
         }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 5562e76..8d4c9e5 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -103,6 +103,7 @@
 import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
 import android.app.IActivityManager;
+import android.app.admin.DevicePolicyManagerInternal;
 import android.app.admin.IDevicePolicyManager;
 import android.app.backup.IBackupManager;
 import android.content.BroadcastReceiver;
@@ -174,7 +175,6 @@
 import android.os.Message;
 import android.os.Parcel;
 import android.os.ParcelFileDescriptor;
-import android.os.Parcelable;
 import android.os.Process;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
@@ -2564,7 +2564,7 @@
     private @Nullable String getRequiredButNotReallyRequiredVerifierLPr() {
         final Intent intent = new Intent(Intent.ACTION_PACKAGE_NEEDS_VERIFICATION);
 
-        final List<ResolveInfo> matches = queryIntentReceivers(intent, PACKAGE_MIME_TYPE,
+        final List<ResolveInfo> matches = queryIntentReceiversInternal(intent, PACKAGE_MIME_TYPE,
                 MATCH_SYSTEM_ONLY | MATCH_ENCRYPTION_AWARE_AND_UNAWARE, UserHandle.USER_SYSTEM);
         if (matches.size() == 1) {
             return matches.get(0).getComponentInfo().packageName;
@@ -2579,7 +2579,7 @@
         intent.addCategory(Intent.CATEGORY_DEFAULT);
         intent.setDataAndType(Uri.fromFile(new File("foo.apk")), PACKAGE_MIME_TYPE);
 
-        final List<ResolveInfo> matches = queryIntentActivities(intent, PACKAGE_MIME_TYPE,
+        final List<ResolveInfo> matches = queryIntentActivitiesInternal(intent, PACKAGE_MIME_TYPE,
                 MATCH_SYSTEM_ONLY | MATCH_ENCRYPTION_AWARE_AND_UNAWARE, UserHandle.USER_SYSTEM);
         if (matches.size() == 1) {
             return matches.get(0).getComponentInfo().packageName;
@@ -2591,7 +2591,7 @@
     private @NonNull ComponentName getIntentFilterVerifierComponentNameLPr() {
         final Intent intent = new Intent(Intent.ACTION_INTENT_FILTER_NEEDS_VERIFICATION);
 
-        final List<ResolveInfo> matches = queryIntentReceivers(intent, PACKAGE_MIME_TYPE,
+        final List<ResolveInfo> matches = queryIntentReceiversInternal(intent, PACKAGE_MIME_TYPE,
                 MATCH_SYSTEM_ONLY | MATCH_ENCRYPTION_AWARE_AND_UNAWARE, UserHandle.USER_SYSTEM);
         ResolveInfo best = null;
         final int N = matches.size();
@@ -2626,7 +2626,7 @@
         }
 
         final Intent resolverIntent = new Intent(Intent.ACTION_RESOLVE_EPHEMERAL_PACKAGE);
-        final List<ResolveInfo> resolvers = queryIntentServices(resolverIntent, null,
+        final List<ResolveInfo> resolvers = queryIntentServicesInternal(resolverIntent, null,
                 MATCH_SYSTEM_ONLY | MATCH_ENCRYPTION_AWARE_AND_UNAWARE, UserHandle.USER_SYSTEM);
 
         final int N = resolvers.size();
@@ -2671,7 +2671,7 @@
         intent.addCategory(Intent.CATEGORY_DEFAULT);
         intent.setDataAndType(Uri.fromFile(new File("foo.apk")), PACKAGE_MIME_TYPE);
 
-        final List<ResolveInfo> matches = queryIntentActivities(intent, PACKAGE_MIME_TYPE,
+        final List<ResolveInfo> matches = queryIntentActivitiesInternal(intent, PACKAGE_MIME_TYPE,
                 MATCH_SYSTEM_ONLY | MATCH_ENCRYPTION_AWARE_AND_UNAWARE, UserHandle.USER_SYSTEM);
         if (matches.size() == 0) {
             return null;
@@ -2766,7 +2766,7 @@
 
     private List<String> resolveAllBrowserApps(int userId) {
         // Resolve the canonical browser intent and check that the handleAllWebDataURI boolean is set
-        List<ResolveInfo> list = queryIntentActivities(sBrowserIntent, null,
+        List<ResolveInfo> list = queryIntentActivitiesInternal(sBrowserIntent, null,
                 PackageManager.MATCH_ALL, userId);
 
         final int count = list.size();
@@ -2786,7 +2786,7 @@
     }
 
     private boolean packageIsBrowser(String packageName, int userId) {
-        List<ResolveInfo> list = queryIntentActivities(sBrowserIntent, null,
+        List<ResolveInfo> list = queryIntentActivitiesInternal(sBrowserIntent, null,
                 PackageManager.MATCH_ALL, userId);
         final int N = list.size();
         for (int i = 0; i < N; i++) {
@@ -3035,9 +3035,15 @@
     }
 
     @Override
-    public List<PermissionInfo> queryPermissionsByGroup(String group, int flags) {
+    public @Nullable ParceledListSlice<PermissionInfo> queryPermissionsByGroup(String group,
+            int flags) {
         // reader
         synchronized (mPackages) {
+            if (group != null && !mPermissionGroups.containsKey(group)) {
+                // This is thrown as NameNotFoundException
+                return null;
+            }
+
             ArrayList<PermissionInfo> out = new ArrayList<PermissionInfo>(10);
             for (BasePermission p : mSettings.mPermissions.values()) {
                 if (group == null) {
@@ -3050,11 +3056,7 @@
                     }
                 }
             }
-
-            if (out.size() > 0) {
-                return out;
-            }
-            return mPermissionGroups.containsKey(group) ? out : null;
+            return new ParceledListSlice<>(out);
         }
     }
 
@@ -3068,7 +3070,7 @@
     }
 
     @Override
-    public List<PermissionGroupInfo> getAllPermissionGroups(int flags) {
+    public @NonNull ParceledListSlice<PermissionGroupInfo> getAllPermissionGroups(int flags) {
         // reader
         synchronized (mPackages) {
             final int N = mPermissionGroups.size();
@@ -3077,7 +3079,7 @@
             for (PackageParser.PermissionGroup pg : mPermissionGroups.values()) {
                 out.add(PackageParser.generatePermissionGroupInfo(pg, flags));
             }
-            return out;
+            return new ParceledListSlice<>(out);
         }
     }
 
@@ -3475,22 +3477,17 @@
     }
 
     @Override
-    public FeatureInfo[] getSystemAvailableFeatures() {
-        Collection<FeatureInfo> featSet;
+    public @NonNull ParceledListSlice<FeatureInfo> getSystemAvailableFeatures() {
         synchronized (mPackages) {
-            featSet = mAvailableFeatures.values();
-            int size = featSet.size();
-            if (size > 0) {
-                FeatureInfo[] features = new FeatureInfo[size+1];
-                featSet.toArray(features);
-                FeatureInfo fi = new FeatureInfo();
-                fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
-                        FeatureInfo.GL_ES_VERSION_UNDEFINED);
-                features[size] = fi;
-                return features;
-            }
+            final ArrayList<FeatureInfo> res = new ArrayList<>(mAvailableFeatures.values());
+
+            final FeatureInfo fi = new FeatureInfo();
+            fi.reqGlEsVersion = SystemProperties.getInt("ro.opengles.version",
+                    FeatureInfo.GL_ES_VERSION_UNDEFINED);
+            res.add(fi);
+
+            return new ParceledListSlice<>(res);
         }
-        return null;
     }
 
     @Override
@@ -4570,7 +4567,8 @@
         flags = updateFlagsForResolve(flags, userId, intent);
         enforceCrossUserPermission(Binder.getCallingUid(), userId,
                 false /* requireFullPermission */, false /* checkShell */, "resolve intent");
-        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
+        final List<ResolveInfo> query = queryIntentActivitiesInternal(intent, resolvedType, flags,
+                userId);
         final ResolveInfo bestChoice =
                 chooseBestActivity(intent, resolvedType, flags, query, userId);
 
@@ -4602,7 +4600,8 @@
             filter.dump(new PrintStreamPrinter(System.out), "    ");
         }
         intent.setComponent(null);
-        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
+        final List<ResolveInfo> query = queryIntentActivitiesInternal(intent, resolvedType, flags,
+                userId);
         // Find any earlier preferred or last chosen entries and nuke them
         findPreferredActivity(intent, resolvedType,
                 flags, query, 0, false, true, false, userId);
@@ -4615,7 +4614,8 @@
     public ResolveInfo getLastChosenActivity(Intent intent, String resolvedType, int flags) {
         final int userId = UserHandle.getCallingUserId();
         if (DEBUG_PREFERRED) Log.v(TAG, "Querying last chosen activity for " + intent);
-        List<ResolveInfo> query = queryIntentActivities(intent, resolvedType, flags, userId);
+        final List<ResolveInfo> query = queryIntentActivitiesInternal(intent, resolvedType, flags,
+                userId);
         return findPreferredActivity(intent, resolvedType, flags, query, 0,
                 false, false, false, userId);
     }
@@ -5026,7 +5026,13 @@
     }
 
     @Override
-    public List<ResolveInfo> queryIntentActivities(Intent intent,
+    public @NonNull ParceledListSlice<ResolveInfo> queryIntentActivities(Intent intent,
+            String resolvedType, int flags, int userId) {
+        return new ParceledListSlice<>(
+                queryIntentActivitiesInternal(intent, resolvedType, flags, userId));
+    }
+
+    private @NonNull List<ResolveInfo> queryIntentActivitiesInternal(Intent intent,
             String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return Collections.emptyList();
         flags = updateFlagsForResolve(flags, userId, intent);
@@ -5517,7 +5523,14 @@
     }
 
     @Override
-    public List<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
+    public @NonNull ParceledListSlice<ResolveInfo> queryIntentActivityOptions(ComponentName caller,
+            Intent[] specifics, String[] specificTypes, Intent intent,
+            String resolvedType, int flags, int userId) {
+        return new ParceledListSlice<>(queryIntentActivityOptionsInternal(caller, specifics,
+                specificTypes, intent, resolvedType, flags, userId));
+    }
+
+    private @NonNull List<ResolveInfo> queryIntentActivityOptionsInternal(ComponentName caller,
             Intent[] specifics, String[] specificTypes, Intent intent,
             String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return Collections.emptyList();
@@ -5527,7 +5540,7 @@
                 "query intent activity options");
         final String resultsAction = intent.getAction();
 
-        List<ResolveInfo> results = queryIntentActivities(intent, resolvedType, flags
+        final List<ResolveInfo> results = queryIntentActivitiesInternal(intent, resolvedType, flags
                 | PackageManager.GET_RESOLVED_FILTER, userId);
 
         if (DEBUG_INTENT_MATCHING) {
@@ -5692,8 +5705,14 @@
     }
 
     @Override
-    public List<ResolveInfo> queryIntentReceivers(Intent intent, String resolvedType, int flags,
-            int userId) {
+    public @NonNull ParceledListSlice<ResolveInfo> queryIntentReceivers(Intent intent,
+            String resolvedType, int flags, int userId) {
+        return new ParceledListSlice<>(
+                queryIntentReceiversInternal(intent, resolvedType, flags, userId));
+    }
+
+    private @NonNull List<ResolveInfo> queryIntentReceiversInternal(Intent intent,
+            String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return Collections.emptyList();
         flags = updateFlagsForResolve(flags, userId, intent);
         ComponentName comp = intent.getComponent();
@@ -5725,7 +5744,7 @@
                 return mReceivers.queryIntentForPackage(intent, resolvedType, flags, pkg.receivers,
                         userId);
             }
-            return null;
+            return Collections.emptyList();
         }
     }
 
@@ -5733,7 +5752,7 @@
     public ResolveInfo resolveService(Intent intent, String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return null;
         flags = updateFlagsForResolve(flags, userId, intent);
-        List<ResolveInfo> query = queryIntentServices(intent, resolvedType, flags, userId);
+        List<ResolveInfo> query = queryIntentServicesInternal(intent, resolvedType, flags, userId);
         if (query != null) {
             if (query.size() >= 1) {
                 // If there is more than one service with the same priority,
@@ -5745,8 +5764,14 @@
     }
 
     @Override
-    public List<ResolveInfo> queryIntentServices(Intent intent, String resolvedType, int flags,
-            int userId) {
+    public @NonNull ParceledListSlice<ResolveInfo> queryIntentServices(Intent intent,
+            String resolvedType, int flags, int userId) {
+        return new ParceledListSlice<>(
+                queryIntentServicesInternal(intent, resolvedType, flags, userId));
+    }
+
+    private @NonNull List<ResolveInfo> queryIntentServicesInternal(Intent intent,
+            String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return Collections.emptyList();
         flags = updateFlagsForResolve(flags, userId, intent);
         ComponentName comp = intent.getComponent();
@@ -5778,12 +5803,18 @@
                 return mServices.queryIntentForPackage(intent, resolvedType, flags, pkg.services,
                         userId);
             }
-            return null;
+            return Collections.emptyList();
         }
     }
 
     @Override
-    public List<ResolveInfo> queryIntentContentProviders(
+    public @NonNull ParceledListSlice<ResolveInfo> queryIntentContentProviders(Intent intent,
+            String resolvedType, int flags, int userId) {
+        return new ParceledListSlice<>(
+                queryIntentContentProvidersInternal(intent, resolvedType, flags, userId));
+    }
+
+    private @NonNull List<ResolveInfo> queryIntentContentProvidersInternal(
             Intent intent, String resolvedType, int flags, int userId) {
         if (!sUserManager.exists(userId)) return Collections.emptyList();
         flags = updateFlagsForResolve(flags, userId, intent);
@@ -5816,7 +5847,7 @@
                 return mProviders.queryIntentForPackage(
                         intent, resolvedType, flags, pkg.providers, userId);
             }
-            return null;
+            return Collections.emptyList();
         }
     }
 
@@ -6072,7 +6103,12 @@
                 && UserHandle.getAppId(Binder.getCallingUid()) == pkg.applicationInfo.uid;
     }
 
-    public List<ApplicationInfo> getPersistentApplications(int flags) {
+    @Override
+    public @NonNull ParceledListSlice<ApplicationInfo> getPersistentApplications(int flags) {
+        return new ParceledListSlice<>(getPersistentApplicationsInternal(flags));
+    }
+
+    private @NonNull List<ApplicationInfo> getPersistentApplicationsInternal(int flags) {
         final ArrayList<ApplicationInfo> finalList = new ArrayList<ApplicationInfo>();
 
         // reader
@@ -6154,11 +6190,11 @@
     }
 
     @Override
-    public ParceledListSlice<ProviderInfo> queryContentProviders(String processName,
+    public @NonNull ParceledListSlice<ProviderInfo> queryContentProviders(String processName,
             int uid, int flags) {
         final int userId = processName != null ? UserHandle.getUserId(uid)
                 : UserHandle.getCallingUserId();
-        if (!sUserManager.exists(userId)) return null;
+        if (!sUserManager.exists(userId)) return ParceledListSlice.emptyList();
         flags = updateFlagsForComponent(flags, userId, processName);
 
         ArrayList<ProviderInfo> finalList = null;
@@ -6190,7 +6226,7 @@
             return new ParceledListSlice<ProviderInfo>(finalList);
         }
 
-        return null;
+        return ParceledListSlice.emptyList();
     }
 
     @Override
@@ -6203,10 +6239,14 @@
     }
 
     @Override
-    public List<InstrumentationInfo> queryInstrumentation(String targetPackage,
+    public @NonNull ParceledListSlice<InstrumentationInfo> queryInstrumentation(
+            String targetPackage, int flags) {
+        return new ParceledListSlice<>(queryInstrumentationInternal(targetPackage, flags));
+    }
+
+    private @NonNull List<InstrumentationInfo> queryInstrumentationInternal(String targetPackage,
             int flags) {
-        ArrayList<InstrumentationInfo> finalList =
-            new ArrayList<InstrumentationInfo>();
+        ArrayList<InstrumentationInfo> finalList = new ArrayList<InstrumentationInfo>();
 
         // reader
         synchronized (mPackages) {
@@ -11081,21 +11121,22 @@
     }
 
     @Override
-    public List<IntentFilterVerificationInfo> getIntentFilterVerifications(String packageName) {
+    public @NonNull ParceledListSlice<IntentFilterVerificationInfo> getIntentFilterVerifications(
+            String packageName) {
         synchronized (mPackages) {
-            return mSettings.getIntentFilterVerificationsLPr(packageName);
+            return new ParceledListSlice<>(mSettings.getIntentFilterVerificationsLPr(packageName));
         }
     }
 
     @Override
-    public List<IntentFilter> getAllIntentFilters(String packageName) {
+    public @NonNull ParceledListSlice<IntentFilter> getAllIntentFilters(String packageName) {
         if (TextUtils.isEmpty(packageName)) {
-            return Collections.<IntentFilter>emptyList();
+            return ParceledListSlice.emptyList();
         }
         synchronized (mPackages) {
             PackageParser.Package pkg = mPackages.get(packageName);
             if (pkg == null || pkg.activities == null) {
-                return Collections.<IntentFilter>emptyList();
+                return ParceledListSlice.emptyList();
             }
             final int count = pkg.activities.size();
             ArrayList<IntentFilter> result = new ArrayList<>();
@@ -11105,7 +11146,7 @@
                     result.addAll(activity.intents);
                 }
             }
-            return result;
+            return new ParceledListSlice<>(result);
         }
     }
 
@@ -11831,7 +11872,7 @@
                     verification.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
 
                     // Query all live verifiers based on current user state
-                    final List<ResolveInfo> receivers = queryIntentReceivers(verification,
+                    final List<ResolveInfo> receivers = queryIntentReceiversInternal(verification,
                             PACKAGE_MIME_TYPE, 0, verifierUser.getIdentifier());
 
                     if (DEBUG_VERIFY) {
@@ -15110,8 +15151,15 @@
             final IPackageDataObserver observer, final int userId) {
         mContext.enforceCallingOrSelfPermission(
                 android.Manifest.permission.CLEAR_APP_USER_DATA, null);
+
         enforceCrossUserPermission(Binder.getCallingUid(), userId,
                 true /* requireFullPermission */, false /* checkShell */, "clear application data");
+
+        final DevicePolicyManagerInternal dpmi = LocalServices
+                .getService(DevicePolicyManagerInternal.class);
+        if (dpmi != null && dpmi.hasDeviceOwnerOrProfileOwner(packageName, userId)) {
+            throw new SecurityException("Cannot clear data for a device owner or a profile owner");
+        }
         // Queue up an async operation since the package deletion may take a little while.
         mHandler.post(new Runnable() {
             public void run() {
@@ -15123,8 +15171,8 @@
                 clearExternalStorageDataSync(packageName, userId, true);
                 if (succeeded) {
                     // invoke DeviceStorageMonitor's update method to clear any notifications
-                    DeviceStorageMonitorInternal
-                            dsm = LocalServices.getService(DeviceStorageMonitorInternal.class);
+                    DeviceStorageMonitorInternal dsm = LocalServices
+                            .getService(DeviceStorageMonitorInternal.class);
                     if (dsm != null) {
                         dsm.checkMemory();
                     }
@@ -15523,22 +15571,6 @@
         return true;
     }
 
-
-    @Override
-    public void addPackageToPreferred(String packageName) {
-        Slog.w(TAG, "addPackageToPreferred: this is now a no-op");
-    }
-
-    @Override
-    public void removePackageFromPreferred(String packageName) {
-        Slog.w(TAG, "removePackageFromPreferred: this is now a no-op");
-    }
-
-    @Override
-    public List<PackageInfo> getPreferredPackages(int flags) {
-        return new ArrayList<PackageInfo>();
-    }
-
     private int getUidTargetSdkVersionLockedLPr(int uid) {
         Object obj = mSettings.getUserIdLPr(uid);
         if (obj instanceof SharedUserSetting) {
@@ -16391,7 +16423,7 @@
         intent.addCategory(Intent.CATEGORY_HOME);
 
         final int callingUserId = UserHandle.getCallingUserId();
-        List<ResolveInfo> list = queryIntentActivities(intent, null,
+        List<ResolveInfo> list = queryIntentActivitiesInternal(intent, null,
                 PackageManager.GET_META_DATA, callingUserId);
         ResolveInfo preferred = findPreferredActivity(intent, null, 0, list, 0,
                 true, false, false, callingUserId);
@@ -17387,8 +17419,9 @@
     }
 
     private String dumpDomainString(String packageName) {
-        List<IntentFilterVerificationInfo> iviList = getIntentFilterVerifications(packageName);
-        List<IntentFilter> filters = getAllIntentFilters(packageName);
+        List<IntentFilterVerificationInfo> iviList = getIntentFilterVerifications(packageName)
+                .getList();
+        List<IntentFilter> filters = getAllIntentFilters(packageName).getList();
 
         ArraySet<String> result = new ArraySet<>();
         if (iviList.size() > 0) {
diff --git a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
index a3ac514..f79d6ee 100644
--- a/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
+++ b/services/core/java/com/android/server/pm/PackageManagerServiceUtils.java
@@ -16,13 +16,15 @@
 
 package com.android.server.pm;
 
+import static com.android.server.pm.PackageManagerService.DEBUG_DEXOPT;
+import static com.android.server.pm.PackageManagerService.TAG;
+
 import android.app.AppGlobals;
 import android.content.Intent;
 import android.content.pm.PackageParser;
-import android.content.pm.PackageParser.Package;
 import android.content.pm.ResolveInfo;
-import android.os.UserHandle;
 import android.os.RemoteException;
+import android.os.UserHandle;
 import android.util.ArraySet;
 import android.util.Log;
 
@@ -35,9 +37,6 @@
 import java.util.List;
 import java.util.Set;
 
-import static com.android.server.pm.PackageManagerService.DEBUG_DEXOPT;
-import static com.android.server.pm.PackageManagerService.TAG;
-
 /**
  * Class containing helper methods for the PackageManagerService.
  *
@@ -49,7 +48,8 @@
     private static ArraySet<String> getPackageNamesForIntent(Intent intent, int userId) {
         List<ResolveInfo> ris = null;
         try {
-            ris = AppGlobals.getPackageManager().queryIntentReceivers(intent, null, 0, userId);
+            ris = AppGlobals.getPackageManager().queryIntentReceivers(intent, null, 0, userId)
+                    .getList();
         } catch (RemoteException e) {
         }
         ArraySet<String> pkgNames = new ArraySet<String>();
diff --git a/services/core/java/com/android/server/pm/PackageManagerShellCommand.java b/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
index abee007..ccbd823 100644
--- a/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
+++ b/services/core/java/com/android/server/pm/PackageManagerShellCommand.java
@@ -317,11 +317,7 @@
 
     private int runListFeatures() throws RemoteException {
         final PrintWriter pw = getOutPrintWriter();
-        final List<FeatureInfo> list = new ArrayList<FeatureInfo>();
-        final FeatureInfo[] rawList = mInterface.getSystemAvailableFeatures();
-        for (int i=0; i<rawList.length; i++) {
-            list.add(rawList[i]);
-        }
+        final List<FeatureInfo> list = mInterface.getSystemAvailableFeatures().getList();
 
         // sort by name
         Collections.sort(list, new Comparator<FeatureInfo>() {
@@ -380,7 +376,7 @@
         }
 
         final List<InstrumentationInfo> list =
-                mInterface.queryInstrumentation(targetPackage, 0 /*flags*/);
+                mInterface.queryInstrumentation(targetPackage, 0 /*flags*/).getList();
 
         // sort by target package
         Collections.sort(list, new Comparator<InstrumentationInfo>() {
@@ -521,7 +517,7 @@
 
     private int runListPermissionGroups() throws RemoteException {
         final PrintWriter pw = getOutPrintWriter();
-        final List<PermissionGroupInfo> pgs = mInterface.getAllPermissionGroups(0);
+        final List<PermissionGroupInfo> pgs = mInterface.getAllPermissionGroups(0).getList();
 
         final int count = pgs.size();
         for (int p = 0; p < count ; p++) {
@@ -568,7 +564,7 @@
         final ArrayList<String> groupList = new ArrayList<String>();
         if (groups) {
             final List<PermissionGroupInfo> infos =
-                    mInterface.getAllPermissionGroups(0 /*flags*/);
+                    mInterface.getAllPermissionGroups(0 /*flags*/).getList();
             final int count = infos.size();
             for (int i = 0; i < count; i++) {
                 groupList.add(infos.get(i).name);
@@ -718,7 +714,7 @@
         }
         try {
             List<ResolveInfo> result = mInterface.queryIntentActivities(intent, null, 0,
-                    mTargetUser);
+                    mTargetUser).getList();
             PrintWriter pw = getOutPrintWriter();
             if (result == null || result.size() <= 0) {
                 pw.println("No activities found");
@@ -745,7 +741,7 @@
         }
         try {
             List<ResolveInfo> result = mInterface.queryIntentServices(intent, null, 0,
-                    mTargetUser);
+                    mTargetUser).getList();
             PrintWriter pw = getOutPrintWriter();
             if (result == null || result.size() <= 0) {
                 pw.println("No services found");
@@ -772,7 +768,7 @@
         }
         try {
             List<ResolveInfo> result = mInterface.queryIntentReceivers(intent, null, 0,
-                    mTargetUser);
+                    mTargetUser).getList();
             PrintWriter pw = getOutPrintWriter();
             if (result == null || result.size() <= 0) {
                 pw.println("No receivers found");
@@ -1051,7 +1047,7 @@
                 prefix = "  ";
             }
             List<PermissionInfo> ps =
-                    mInterface.queryPermissionsByGroup(groupList.get(i), 0 /*flags*/);
+                    mInterface.queryPermissionsByGroup(groupList.get(i), 0 /*flags*/).getList();
             final int count = ps.size();
             boolean first = true;
             for (int p = 0 ; p < count ; p++) {
diff --git a/services/core/java/com/android/server/pm/Settings.java b/services/core/java/com/android/server/pm/Settings.java
index 310ad53..bf5a8f6 100644
--- a/services/core/java/com/android/server/pm/Settings.java
+++ b/services/core/java/com/android/server/pm/Settings.java
@@ -2604,7 +2604,6 @@
         if (pkg.volumeUuid != null) {
             serializer.attribute(null, "volumeUuid", pkg.volumeUuid);
         }
-
         if (pkg.parentPackageName != null) {
             serializer.attribute(null, "parentPackageName", pkg.parentPackageName);
         }
@@ -4171,9 +4170,19 @@
     };
 
     static final Object[] PRIVATE_FLAG_DUMP_SPEC = new Object[] {
-        ApplicationInfo.PRIVATE_FLAG_PRIVILEGED, "PRIVILEGED",
-        ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK, "FORWARD_LOCK",
+        ApplicationInfo.PRIVATE_FLAG_HIDDEN, "HIDDEN",
         ApplicationInfo.PRIVATE_FLAG_CANT_SAVE_STATE, "CANT_SAVE_STATE",
+        ApplicationInfo.PRIVATE_FLAG_FORWARD_LOCK, "FORWARD_LOCK",
+        ApplicationInfo.PRIVATE_FLAG_PRIVILEGED, "PRIVILEGED",
+        ApplicationInfo.PRIVATE_FLAG_HAS_DOMAIN_URLS, "HAS_DOMAIN_URLS",
+        ApplicationInfo.PRIVATE_FLAG_FORCE_DEVICE_ENCRYPTED, "FORCE_DEVICE_ENCRYPTED",
+        ApplicationInfo.PRIVATE_FLAG_ENCRYPTION_AWARE, "ENCRYPTION_AWARE",
+        ApplicationInfo.PRIVATE_FLAG_AUTOPLAY, "AUTOPLAY",
+        ApplicationInfo.PRIVATE_FLAG_PARTIALLY_ENCRYPTION_AWARE, "PARTIALLY_ENCRYPTION_AWARE",
+        ApplicationInfo.PRIVATE_FLAG_EPHEMERAL, "EPHEMERAL",
+        ApplicationInfo.PRIVATE_FLAG_REQUIRED_FOR_SYSTEM_USER, "REQUIRED_FOR_SYSTEM_USER",
+        ApplicationInfo.PRIVATE_FLAG_RESIZEABLE_ACTIVITIES, "RESIZEABLE_ACTIVITIES",
+        ApplicationInfo.PRIVATE_FLAG_BACKUP_IN_FOREGROUND, "BACKUP_IN_FOREGROUND",
     };
 
     void dumpVersionLPr(IndentingPrintWriter pw) {
@@ -4316,6 +4325,10 @@
             }
             pw.print(prefix); pw.print("  versionName="); pw.println(ps.pkg.mVersionName);
             pw.print(prefix); pw.print("  splits="); dumpSplitNames(pw, ps.pkg); pw.println();
+            final int apkSigningVersion = PackageParser.getApkSigningVersion(ps.pkg);
+            if (apkSigningVersion != PackageParser.APK_SIGNING_UNKNOWN) {
+                pw.print(prefix); pw.print("  apkSigningVersion="); pw.println(apkSigningVersion);
+            }
             pw.print(prefix); pw.print("  applicationInfo=");
                 pw.println(ps.pkg.applicationInfo.toString());
             pw.print(prefix); pw.print("  flags="); printFlags(pw, ps.pkg.applicationInfo.flags,
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 6320413..e51a2e1 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -57,6 +57,7 @@
 import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.content.pm.ActivityInfo;
+import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.res.CompatibilityInfo;
@@ -76,6 +77,7 @@
 import android.media.RingtoneManager;
 import android.media.session.MediaSessionLegacyHelper;
 import android.os.Binder;
+import android.os.Build;
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.FactoryTest;
@@ -535,6 +537,7 @@
     boolean mForceStatusBar;
     boolean mForceStatusBarFromKeyguard;
     private boolean mForceStatusBarTransparent;
+    boolean mForceNavBarOpaque;
     boolean mHideLockScreen;
     boolean mForcingShowNavBar;
     int mForcingShowNavBarLayer;
@@ -1715,6 +1718,9 @@
         if (mContext.getPackageManager().hasSystemFeature(FEATURE_PICTURE_IN_PICTURE)) {
             mShortPressWindowBehavior = SHORT_PRESS_WINDOW_PICTURE_IN_PICTURE;
         }
+
+        mForceNavBarOpaque = res.getBoolean(
+                com.android.internal.R.bool.config_forceNavBarAlwaysOpaque);
     }
 
     @Override
@@ -2053,7 +2059,7 @@
 
                 // check if user has enabled this operation. SecurityException will be thrown if
                 // this app has not been allowed by the user
-                final int mode = mAppOpsManager.checkOp(outAppOp[0], callingUid,
+                final int mode = mAppOpsManager.checkOpNoThrow(outAppOp[0], callingUid,
                         attrs.packageName);
                 switch (mode) {
                     case AppOpsManager.MODE_ALLOWED:
@@ -2062,6 +2068,17 @@
                         // actually be hidden in WindowManagerService
                         return WindowManagerGlobal.ADD_OKAY;
                     case AppOpsManager.MODE_ERRORED:
+                        try {
+                            ApplicationInfo appInfo = mContext.getPackageManager()
+                                    .getApplicationInfo(attrs.packageName,
+                                            UserHandle.getUserId(callingUid));
+                            // Don't crash legacy apps
+                            if (appInfo.targetSdkVersion < Build.VERSION_CODES.M) {
+                                return WindowManagerGlobal.ADD_OKAY;
+                            }
+                        } catch (PackageManager.NameNotFoundException e) {
+                            /* ignore */
+                        }
                         return WindowManagerGlobal.ADD_PERMISSION_DENIED;
                     default:
                         // in the default mode, we will make a decision here based on
@@ -7080,6 +7097,10 @@
                     | View.SYSTEM_UI_TRANSPARENT);
         }
 
+        if (mForceNavBarOpaque) {
+            vis &= ~(View.NAVIGATION_BAR_TRANSLUCENT | View.NAVIGATION_BAR_TRANSPARENT);
+        }
+
         if (mForceWindowDrawsStatusBarBackground) {
             vis |= View.STATUS_BAR_TRANSPARENT;
             vis &= ~View.STATUS_BAR_TRANSLUCENT;
diff --git a/services/core/java/com/android/server/search/Searchables.java b/services/core/java/com/android/server/search/Searchables.java
index 0046fbb..6bacdfd 100644
--- a/services/core/java/com/android/server/search/Searchables.java
+++ b/services/core/java/com/android/server/search/Searchables.java
@@ -410,7 +410,7 @@
             activities =
                     mPm.queryIntentActivities(intent,
                     intent.resolveTypeIfNeeded(mContext.getContentResolver()),
-                    flags, mUserId);
+                    flags, mUserId).getList();
         } catch (RemoteException re) {
             // Local call
         }
diff --git a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
index a0a971a..ccbdad2 100644
--- a/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
+++ b/services/core/java/com/android/server/wallpaper/WallpaperManagerService.java
@@ -1317,7 +1317,7 @@
                 List<ResolveInfo> ris =
                         mIPackageManager.queryIntentServices(intent,
                                 intent.resolveTypeIfNeeded(mContext.getContentResolver()),
-                                PackageManager.GET_META_DATA, serviceUserId);
+                                PackageManager.GET_META_DATA, serviceUserId).getList();
                 for (int i=0; i<ris.size(); i++) {
                     ServiceInfo rsi = ris.get(i).serviceInfo;
                     if (rsi.name.equals(si.name) &&
diff --git a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
index aa14fff..60ed497 100644
--- a/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
+++ b/services/core/jni/com_android_server_location_GnssLocationProvider.cpp
@@ -1205,7 +1205,8 @@
     SET_IF(GNSS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY,
            CarrierPhaseUncertainty,
            measurement->carrier_phase_uncertainty);
-    SET(MultipathIndicator, measurement->multipath_indicator);
+    SET(MultipathIndicator,
+        static_cast<int32_t>(measurement->multipath_indicator));
     SET_IF(GNSS_MEASUREMENT_HAS_SNR, SnrInDb, measurement->snr_db);
 
     return object.get();
@@ -1244,7 +1245,8 @@
     SET_IF(GNSS_MEASUREMENT_HAS_CARRIER_PHASE_UNCERTAINTY,
            CarrierPhaseUncertainty,
            measurement->carrier_phase_uncertainty);
-    SET(MultipathIndicator, measurement->multipath_indicator);
+    SET(MultipathIndicator,
+        static_cast<int32_t>(measurement->multipath_indicator));
     SET_IF(GNSS_MEASUREMENT_HAS_SNR, SnrInDb, measurement->snr_db);
 
     return object.get();
diff --git a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
index 7d32562..ce86b2c 100644
--- a/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
+++ b/services/devicepolicy/java/com/android/server/devicepolicy/DevicePolicyManagerService.java
@@ -31,8 +31,8 @@
 import android.Manifest.permission;
 import android.accessibilityservice.AccessibilityServiceInfo;
 import android.accounts.AccountManager;
+import android.annotation.IntDef;
 import android.annotation.NonNull;
-import android.annotation.Nullable;
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
@@ -151,6 +151,8 @@
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.PrintWriter;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
 import java.nio.charset.StandardCharsets;
 import java.security.cert.CertificateException;
 import java.security.cert.CertificateFactory;
@@ -280,6 +282,20 @@
     private static final int PROFILE_KEYGUARD_FEATURES =
             PROFILE_KEYGUARD_FEATURES_AFFECT_OWNER | PROFILE_KEYGUARD_FEATURES_PROFILE_ONLY;
 
+    private static final int CODE_OK = 0;
+    private static final int CODE_HAS_DEVICE_OWNER = 1;
+    private static final int CODE_USER_HAS_PROFILE_OWNER = 2;
+    private static final int CODE_USER_NOT_RUNNING = 3;
+    private static final int CODE_USER_SETUP_COMPLETED = 4;
+    private static final int CODE_NONSYSTEM_USER_EXISTS = 5;
+    private static final int CODE_ACCOUNTS_NOT_EMPTY = 6;
+    private static final int CODE_NOT_SYSTEM_USER = 7;
+
+    @Retention(RetentionPolicy.SOURCE)
+    @IntDef({ CODE_OK, CODE_HAS_DEVICE_OWNER, CODE_USER_HAS_PROFILE_OWNER, CODE_USER_NOT_RUNNING,
+            CODE_USER_SETUP_COMPLETED, CODE_NOT_SYSTEM_USER })
+    private @interface DeviceOwnerPreConditionCode {}
+
     private static final int DEVICE_ADMIN_DEACTIVATE_TIMEOUT = 10000;
 
     final Context mContext;
@@ -308,7 +324,7 @@
      * Whether or not device admin feature is supported. If it isn't return defaults for all
      * public methods.
      */
-    private boolean mHasFeature;
+    boolean mHasFeature;
 
     private final SecurityLogMonitor mSecurityLogMonitor;
 
@@ -5934,52 +5950,40 @@
     /**
      * The Device owner can only be set by adb or an app with the MANAGE_PROFILE_AND_DEVICE_OWNERS
      * permission.
-     * The device owner can only be set before the setup phase of the primary user has completed,
-     * except for adb if no accounts or additional users are present on the device.
      */
     private void enforceCanSetDeviceOwnerLocked(int userId) {
-        if (mOwners.hasDeviceOwner()) {
-            throw new IllegalStateException("Trying to set the device owner, but device owner "
-                    + "is already set.");
-        }
-        if (mOwners.hasProfileOwner(userId)) {
-            throw new IllegalStateException("Trying to set the device owner, but the user already "
-                    + "has a profile owner.");
-        }
-        if (!mUserManager.isUserRunning(new UserHandle(userId))) {
-            throw new IllegalStateException("User not running: " + userId);
-        }
-
         int callingUid = mInjector.binderGetCallingUid();
-        if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) {
-            if (!hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
-                return;
-            }
-            // STOPSHIP Do proper check in split user mode
-            if (!mInjector.userManagerIsSplitSystemUser()) {
-                if (mUserManager.getUserCount() > 1) {
-                    throw new IllegalStateException(
-                            "Not allowed to set the device owner because there "
-                                    + "are already several users on the device");
-                }
-                if (AccountManager.get(mContext).getAccounts().length > 0) {
-                    throw new IllegalStateException(
-                            "Not allowed to set the device owner because there "
-                                    + "are already some accounts on the device");
-                }
-            }
-            return;
+        boolean isAdb = callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID;
+        if (!isAdb) {
+            mContext.enforceCallingOrSelfPermission(
+                    android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null);
         }
-        // STOPSHIP check the caller UID with userId
 
-        mContext.enforceCallingOrSelfPermission(
-                android.Manifest.permission.MANAGE_PROFILE_AND_DEVICE_OWNERS, null);
-        // STOPSHIP Do proper check in split user mode
-        if (!mInjector.userManagerIsSplitSystemUser()) {
-            if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
-                throw new IllegalStateException("Cannot set the device owner if the device is "
-                        + "already set-up");
-            }
+        final int code = checkSetDeviceOwnerPreCondition(userId, isAdb);
+        switch (code) {
+            case CODE_OK:
+                return;
+            case CODE_HAS_DEVICE_OWNER:
+                throw new IllegalStateException(
+                        "Trying to set the device owner, but device owner is already set.");
+            case CODE_USER_HAS_PROFILE_OWNER:
+                throw new IllegalStateException("Trying to set the device owner, but the user "
+                        + "already has a profile owner.");
+            case CODE_USER_NOT_RUNNING:
+                throw new IllegalStateException("User not running: " + userId);
+            case CODE_NOT_SYSTEM_USER:
+                throw new IllegalStateException("User is not system user");
+            case CODE_USER_SETUP_COMPLETED:
+                throw new IllegalStateException(
+                        "Cannot set the device owner if the device is already set-up");
+            case CODE_NONSYSTEM_USER_EXISTS:
+                throw new IllegalStateException("Not allowed to set the device owner because there "
+                        + "are already several users on the device");
+            case CODE_ACCOUNTS_NOT_EMPTY:
+                throw new IllegalStateException("Not allowed to set the device owner because there "
+                        + "are already some accounts on the device");
+            default:
+                throw new IllegalStateException("Unknown @DeviceOwnerPreConditionCode " + code);
         }
     }
 
@@ -7126,7 +7130,7 @@
                         intent,
                         intent.resolveTypeIfNeeded(mContext.getContentResolver()),
                         PackageManager.MATCH_ENCRYPTION_AWARE_AND_UNAWARE,
-                        parentUserId);
+                        parentUserId).getList();
 
                 if (VERBOSE_LOG) {
                     Slog.d(LOG_TAG, "Enabling system activities: " + activitiesToEnable);
@@ -7810,6 +7814,26 @@
                 listener.onCrossProfileWidgetProvidersChanged(userId, packages);
             }
         }
+
+        @Override
+        public boolean hasDeviceOwnerOrProfileOwner(String packageName, int userId) {
+            if (!mHasFeature || packageName == null) {
+                return false;
+            }
+            if (userId < 0) {
+                throw new UnsupportedOperationException("userId should be >= 0");
+            }
+            synchronized (DevicePolicyManagerService.this) {
+                if (packageName.equals(mOwners.getProfileOwnerPackage(userId))) {
+                    return true;
+                }
+                if (userId == mOwners.getDeviceOwnerUserId()
+                        && packageName.equals(mOwners.getDeviceOwnerPackageName())) {
+                    return true;
+                }
+            }
+            return false;
+        }
     }
 
     /**
@@ -8036,6 +8060,10 @@
 
     @Override
     public boolean isProvisioningAllowed(String action) {
+        if (!mHasFeature) {
+            return false;
+        }
+
         final int callingUserId = mInjector.userHandleGetCallingUserId();
         if (DevicePolicyManager.ACTION_PROVISION_MANAGED_PROFILE.equals(action)) {
             if (!hasFeatureManagedUsers()) {
@@ -8100,23 +8128,55 @@
         throw new IllegalArgumentException("Unknown provisioning action " + action);
     }
 
-    private boolean isDeviceOwnerProvisioningAllowed(int callingUserId) {
-        synchronized (this) {
-            if (mOwners.hasDeviceOwner()) {
-                return false;
+    /*
+     * The device owner can only be set before the setup phase of the primary user has completed,
+     * except for adb command if no accounts or additional users are present on the device.
+     */
+    private synchronized @DeviceOwnerPreConditionCode int checkSetDeviceOwnerPreCondition(
+            int deviceOwnerUserId, boolean isAdb) {
+        if (mOwners.hasDeviceOwner()) {
+            return CODE_HAS_DEVICE_OWNER;
+        }
+        if (mOwners.hasProfileOwner(deviceOwnerUserId)) {
+            return CODE_USER_HAS_PROFILE_OWNER;
+        }
+        if (!mUserManager.isUserRunning(new UserHandle(deviceOwnerUserId))) {
+            return CODE_USER_NOT_RUNNING;
+        }
+        if (isAdb) {
+            // if shell command runs after user setup completed check device status. Otherwise, OK.
+            if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
+                if (!mInjector.userManagerIsSplitSystemUser()) {
+                    if (mUserManager.getUserCount() > 1) {
+                        return CODE_NONSYSTEM_USER_EXISTS;
+                    }
+                    if (AccountManager.get(mContext).getAccounts().length > 0) {
+                        return CODE_ACCOUNTS_NOT_EMPTY;
+                    }
+                } else {
+                    // STOPSHIP Do proper check in split user mode
+                }
             }
+            return CODE_OK;
+        } else {
+            if (!mInjector.userManagerIsSplitSystemUser()) {
+                // In non-split user mode, DO has to be user 0
+                if (deviceOwnerUserId != UserHandle.USER_SYSTEM) {
+                    return CODE_NOT_SYSTEM_USER;
+                }
+                // In non-split user mode, only provision DO before setup wizard completes
+                if (hasUserSetupCompleted(UserHandle.USER_SYSTEM)) {
+                    return CODE_USER_SETUP_COMPLETED;
+                }
+            } else {
+                // STOPSHIP Do proper check in split user mode
+            }
+            return CODE_OK;
         }
-        if (getProfileOwner(callingUserId) != null) {
-            return false;
-        }
-        if (mInjector.settingsGlobalGetInt(Settings.Global.DEVICE_PROVISIONED, 0) != 0) {
-            return false;
-        }
-        if (callingUserId != UserHandle.USER_SYSTEM) {
-            // Device owner provisioning can only be initiated from system user.
-            return false;
-        }
-        return true;
+    }
+
+    private boolean isDeviceOwnerProvisioningAllowed(int deviceOwnerUserId) {
+        return CODE_OK == checkSetDeviceOwnerPreCondition(deviceOwnerUserId, /* isAdb */ false);
     }
 
     private boolean hasFeatureManagedUsers() {
diff --git a/services/net/java/android/net/dhcp/DhcpClient.java b/services/net/java/android/net/dhcp/DhcpClient.java
index 4f99bff..e2562cd 100644
--- a/services/net/java/android/net/dhcp/DhcpClient.java
+++ b/services/net/java/android/net/dhcp/DhcpClient.java
@@ -84,10 +84,10 @@
 public class DhcpClient extends StateMachine {
 
     private static final String TAG = "DhcpClient";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final boolean STATE_DBG = false;
     private static final boolean MSG_DBG = false;
-    private static final boolean PACKET_DBG = true;
+    private static final boolean PACKET_DBG = false;
 
     // Timers and timeouts.
     private static final int SECONDS = 1000;
@@ -342,14 +342,14 @@
 
         @Override
         public void run() {
-            maybeLog("Receive thread started");
+            if (DBG) Log.d(TAG, "Receive thread started");
             while (!stopped) {
                 int length = 0;  // Or compiler can't tell it's initialized if a parse error occurs.
                 try {
                     length = Os.read(mPacketSock, mPacket, 0, mPacket.length);
                     DhcpPacket packet = null;
                     packet = DhcpPacket.decodeFullPacket(mPacket, length, DhcpPacket.ENCAP_L2);
-                    maybeLog("Received packet: " + packet);
+                    if (DBG) Log.d(TAG, "Received packet: " + packet);
                     sendMessage(CMD_RECEIVED_PACKET, packet);
                 } catch (IOException|ErrnoException e) {
                     if (!stopped) {
@@ -362,7 +362,7 @@
                     }
                 }
             }
-            maybeLog("Receive thread stopped");
+            if (DBG) Log.d(TAG, "Receive thread stopped");
         }
     }
 
@@ -373,12 +373,12 @@
     private boolean transmitPacket(ByteBuffer buf, String description, Inet4Address to) {
         try {
             if (to.equals(INADDR_BROADCAST)) {
-                maybeLog("Broadcasting " + description);
+                if (DBG) Log.d(TAG, "Broadcasting " + description);
                 Os.sendto(mPacketSock, buf.array(), 0, buf.limit(), 0, mInterfaceBroadcastAddr);
             } else {
                 // It's safe to call getpeername here, because we only send unicast packets if we
                 // have an IP address, and we connect the UDP socket in DhcpHaveAddressState#enter.
-                maybeLog("Unicasting " + description + " to " + Os.getpeername(mUdpSock));
+                if (DBG) Log.d(TAG, "Unicasting " + description + " to " + Os.getpeername(mUdpSock));
                 Os.write(mUdpSock, buf);
             }
         } catch(ErrnoException|IOException e) {
@@ -454,10 +454,6 @@
         mController.sendMessage(CMD_ON_QUIT);
     }
 
-    private void maybeLog(String msg) {
-        if (DBG) Log.d(TAG, msg);
-    }
-
     abstract class LoggingState extends State {
         public void enter() {
             if (STATE_DBG) Log.d(TAG, "Entering state " + getName());
@@ -592,7 +588,7 @@
                     transitionTo(mStoppedState);
                     return HANDLED;
                 case CMD_ONESHOT_TIMEOUT:
-                    maybeLog("Timed out");
+                    if (DBG) Log.d(TAG, "Timed out");
                     notifyFailure();
                     return HANDLED;
                 default:
@@ -790,7 +786,7 @@
 
         @Override
         public void exit() {
-            maybeLog("Clearing IP address");
+            if (DBG) Log.d(TAG, "Clearing IP address");
             setIpAddress(new LinkAddress("0.0.0.0/0"));
         }
     }
diff --git a/services/net/java/android/net/ip/IpManager.java b/services/net/java/android/net/ip/IpManager.java
index afae956..c7c5015 100644
--- a/services/net/java/android/net/ip/IpManager.java
+++ b/services/net/java/android/net/ip/IpManager.java
@@ -63,7 +63,7 @@
  * @hide
  */
 public class IpManager extends StateMachine {
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final boolean VDBG = false;
 
     // For message logging.
diff --git a/services/net/java/android/net/ip/IpReachabilityMonitor.java b/services/net/java/android/net/ip/IpReachabilityMonitor.java
index 88155f7..5b4fd50 100644
--- a/services/net/java/android/net/ip/IpReachabilityMonitor.java
+++ b/services/net/java/android/net/ip/IpReachabilityMonitor.java
@@ -132,7 +132,7 @@
  */
 public class IpReachabilityMonitor {
     private static final String TAG = "IpReachabilityMonitor";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
     private static final boolean VDBG = false;
 
     public interface Callback {
diff --git a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
index 212b37c..8c47087 100644
--- a/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
+++ b/services/tests/servicestests/src/com/android/server/devicepolicy/DevicePolicyManagerTest.java
@@ -969,6 +969,8 @@
 
         mContext.binder.callingUid = DpmMockContext.CALLER_SYSTEM_USER_UID;
 
+        when(mContext.userManagerForMock.isSplitSystemUser()).thenReturn(true);
+
         // Make sure the admin packge is installed to each user.
         setUpPackageManagerForAdmin(admin1, DpmMockContext.CALLER_SYSTEM_USER_UID);
         setUpPackageManagerForAdmin(admin3, DpmMockContext.CALLER_SYSTEM_USER_UID);
@@ -1008,6 +1010,7 @@
      * finds the right component from a package name upon migration.
      */
     public void testDeviceOwnerMigration() throws Exception {
+        when(mContext.userManagerForMock.isSplitSystemUser()).thenReturn(true);
         checkDeviceOwnerWithMultipleDeviceAdmins();
 
         // Overwrite the device owner setting and clears the clas name.
diff --git a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
index 6ab0b99..837b4a4 100644
--- a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
+++ b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
@@ -75,7 +75,7 @@
  */
 public class VoiceInteractionManagerService extends SystemService {
     static final String TAG = "VoiceInteractionManagerService";
-    static final boolean DEBUG = true;
+    static final boolean DEBUG = false;
 
     final Context mContext;
     final ContentResolver mResolver;
diff --git a/telephony/java/android/telephony/ServiceState.java b/telephony/java/android/telephony/ServiceState.java
index ad007c6..39a9295 100644
--- a/telephony/java/android/telephony/ServiceState.java
+++ b/telephony/java/android/telephony/ServiceState.java
@@ -36,7 +36,7 @@
 public class ServiceState implements Parcelable {
 
     static final String LOG_TAG = "PHONE";
-    static final boolean DBG = true;
+    static final boolean DBG = false;
     static final boolean VDBG = false;  // STOPSHIP if true
 
     /**
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index e90be91..b482811 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -4403,7 +4403,6 @@
             Log.e(TAG, "Error calling ITelephony#getDataEnabled", e);
         } catch (NullPointerException e) {
         }
-        Log.d(TAG, "getDataEnabled: retVal=" + retVal);
         return retVal;
     }
 
diff --git a/tests/OneMedia/src/com/android/onemedia/playback/LocalRenderer.java b/tests/OneMedia/src/com/android/onemedia/playback/LocalRenderer.java
index c8a8d6c..6463e1f 100644
--- a/tests/OneMedia/src/com/android/onemedia/playback/LocalRenderer.java
+++ b/tests/OneMedia/src/com/android/onemedia/playback/LocalRenderer.java
@@ -47,7 +47,7 @@
         OnBufferingUpdateListener, OnCompletionListener, OnErrorListener,
         OnAudioFocusChangeListener {
     private static final String TAG = "MediaPlayerManager";
-    private static final boolean DEBUG = true;
+    private static final boolean DEBUG = false;
     private static long sDebugInstanceId = 0;
 
     private static final String[] SUPPORTED_FEATURES = {
diff --git a/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/TestSoundTriggerActivity.java b/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/TestSoundTriggerActivity.java
index 4770c05..3ca96d2 100644
--- a/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/TestSoundTriggerActivity.java
+++ b/tests/SoundTriggerTestApp/src/com/android/test/soundtrigger/TestSoundTriggerActivity.java
@@ -40,7 +40,7 @@
 
 public class TestSoundTriggerActivity extends Activity {
     private static final String TAG = "TestSoundTriggerActivity";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
 
     private SoundTriggerUtil mSoundTriggerUtil;
     private Random mRandom;
diff --git a/tests/VoiceEnrollment/src/com/android/test/voiceenrollment/TestEnrollmentActivity.java b/tests/VoiceEnrollment/src/com/android/test/voiceenrollment/TestEnrollmentActivity.java
index 2494db7..54c944f9 100644
--- a/tests/VoiceEnrollment/src/com/android/test/voiceenrollment/TestEnrollmentActivity.java
+++ b/tests/VoiceEnrollment/src/com/android/test/voiceenrollment/TestEnrollmentActivity.java
@@ -31,7 +31,7 @@
 
 public class TestEnrollmentActivity extends Activity {
     private static final String TAG = "TestEnrollmentActivity";
-    private static final boolean DBG = true;
+    private static final boolean DBG = false;
 
     /** Keyphrase related constants, must match those defined in enrollment_application.xml */
     private static final int KEYPHRASE_ID = 101;
diff --git a/tools/aapt2/Android.mk b/tools/aapt2/Android.mk
index f9d35ab..57a7692 100644
--- a/tools/aapt2/Android.mk
+++ b/tools/aapt2/Android.mk
@@ -13,15 +13,12 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-
-# This tool is prebuilt if we're doing an app-only build.
-ifeq ($(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)),)
+LOCAL_PATH:= $(call my-dir)
 
 # ==========================================================
 # Setup some common variables for the different build
 # targets here.
 # ==========================================================
-LOCAL_PATH:= $(call my-dir)
 
 main := Main.cpp
 sources := \
@@ -192,4 +189,6 @@
 
 include $(BUILD_HOST_EXECUTABLE)
 
-endif # No TARGET_BUILD_APPS or TARGET_BUILD_PDK
+ifeq ($(ONE_SHOT_MAKEFILE),)
+include $(call all-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/tools/aapt2/Resource.h b/tools/aapt2/Resource.h
index c71e249..4d1db5b 100644
--- a/tools/aapt2/Resource.h
+++ b/tools/aapt2/Resource.h
@@ -81,9 +81,6 @@
     ResourceName(const StringPiece16& p, ResourceType t, const StringPiece16& e);
 
     bool isValid() const;
-    bool operator<(const ResourceName& rhs) const;
-    bool operator==(const ResourceName& rhs) const;
-    bool operator!=(const ResourceName& rhs) const;
     std::u16string toString() const;
 };
 
@@ -109,10 +106,6 @@
 
     ResourceName toResourceName() const;
     bool isValid() const;
-
-    bool operator<(const ResourceNameRef& rhs) const;
-    bool operator==(const ResourceNameRef& rhs) const;
-    bool operator!=(const ResourceNameRef& rhs) const;
 };
 
 /**
@@ -138,17 +131,11 @@
     uint8_t packageId() const;
     uint8_t typeId() const;
     uint16_t entryId() const;
-    bool operator<(const ResourceId& rhs) const;
-    bool operator==(const ResourceId& rhs) const;
 };
 
 struct SourcedResourceName {
     ResourceName name;
     size_t line;
-
-    inline bool operator==(const SourcedResourceName& rhs) const {
-        return name == rhs.name && line == rhs.line;
-    }
 };
 
 struct ResourceFile {
@@ -227,16 +214,23 @@
     return static_cast<uint16_t>(id);
 }
 
-inline bool ResourceId::operator<(const ResourceId& rhs) const {
-    return id < rhs.id;
+inline bool operator<(const ResourceId& lhs, const ResourceId& rhs) {
+    return lhs.id < rhs.id;
 }
 
-inline bool ResourceId::operator==(const ResourceId& rhs) const {
-    return id == rhs.id;
+inline bool operator>(const ResourceId& lhs, const ResourceId& rhs) {
+    return lhs.id > rhs.id;
 }
 
-inline ::std::ostream& operator<<(::std::ostream& out,
-        const ResourceId& resId) {
+inline bool operator==(const ResourceId& lhs, const ResourceId& rhs) {
+    return lhs.id == rhs.id;
+}
+
+inline bool operator!=(const ResourceId& lhs, const ResourceId& rhs) {
+    return lhs.id != rhs.id;
+}
+
+inline ::std::ostream& operator<<(::std::ostream& out, const ResourceId& resId) {
     std::ios_base::fmtflags oldFlags = out.flags();
     char oldFill = out.fill();
     out << "0x" << std::internal << std::setfill('0') << std::setw(8)
@@ -266,29 +260,21 @@
     return !package.empty() && !entry.empty();
 }
 
-inline bool ResourceName::operator<(const ResourceName& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator<(const ResourceName& lhs, const ResourceName& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             < std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
-inline bool operator<(const ResourceName& lhs, const ResourceNameRef& b) {
-    return ResourceNameRef(lhs) < b;
-}
-
-inline bool ResourceName::operator==(const ResourceName& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator==(const ResourceName& lhs, const ResourceName& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             == std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
-inline bool ResourceName::operator!=(const ResourceName& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator!=(const ResourceName& lhs, const ResourceName& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             != std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
-inline bool operator!=(const ResourceName& lhs, const ResourceNameRef& rhs) {
-    return ResourceNameRef(lhs) != rhs;
-}
-
 inline std::u16string ResourceName::toString() const {
     std::u16string result;
     if (!package.empty()) {
@@ -333,18 +319,18 @@
     return !package.empty() && !entry.empty();
 }
 
-inline bool ResourceNameRef::operator<(const ResourceNameRef& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator<(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             < std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
-inline bool ResourceNameRef::operator==(const ResourceNameRef& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator==(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             == std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
-inline bool ResourceNameRef::operator!=(const ResourceNameRef& rhs) const {
-    return std::tie(package, type, entry)
+inline bool operator!=(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
+    return std::tie(lhs.package, lhs.type, lhs.entry)
             != std::tie(rhs.package, rhs.type, rhs.entry);
 }
 
@@ -355,6 +341,18 @@
     return out << name.type << "/" << name.entry;
 }
 
+inline bool operator<(const ResourceName& lhs, const ResourceNameRef& b) {
+    return ResourceNameRef(lhs) < b;
+}
+
+inline bool operator!=(const ResourceName& lhs, const ResourceNameRef& rhs) {
+    return ResourceNameRef(lhs) != rhs;
+}
+
+inline bool operator==(const SourcedResourceName& lhs, const SourcedResourceName& rhs) {
+    return lhs.name == rhs.name && lhs.line == rhs.line;
+}
+
 } // namespace aapt
 
 #endif // AAPT_RESOURCE_H
diff --git a/tools/aapt2/compile/Compile.cpp b/tools/aapt2/compile/Compile.cpp
index 5f9719e..2452a1d 100644
--- a/tools/aapt2/compile/Compile.cpp
+++ b/tools/aapt2/compile/Compile.cpp
@@ -422,10 +422,6 @@
 }
 
 class CompileContext : public IAaptContext {
-private:
-    StdErrDiagnostics mDiagnostics;
-    bool mVerbose = false;
-
 public:
     void setVerbose(bool val) {
         mVerbose = val;
@@ -444,18 +440,24 @@
        return nullptr;
     }
 
-    StringPiece16 getCompilationPackage() override {
-       return {};
+    const std::u16string& getCompilationPackage() override {
+        static std::u16string empty;
+        return empty;
     }
 
     uint8_t getPackageId() override {
        return 0x0;
     }
 
-    ISymbolTable* getExternalSymbols() override {
+    SymbolTable* getExternalSymbols() override {
        abort();
        return nullptr;
     }
+
+private:
+    StdErrDiagnostics mDiagnostics;
+    bool mVerbose = false;
+
 };
 
 /**
diff --git a/tools/aapt2/data/AndroidManifest.xml b/tools/aapt2/data/AndroidManifest.xml
deleted file mode 100644
index d3b2fbe..0000000
--- a/tools/aapt2/data/AndroidManifest.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.android.app">
-    <application
-        android:name=".ActivityMain">
-    </application>
-</manifest>
diff --git a/tools/aapt2/data/Makefile b/tools/aapt2/data/Makefile
deleted file mode 100644
index 37012de..0000000
--- a/tools/aapt2/data/Makefile
+++ /dev/null
@@ -1,61 +0,0 @@
-##
-# Environment dependent variables
-##
-
-AAPT := aapt2
-ZIPALIGN := zipalign -f 4
-FRAMEWORK := ../../../../../out/target/common/obj/APPS/framework-res_intermediates/package-export.apk
-
-##
-# Project depenedent variables
-##
-
-LOCAL_PACKAGE := com.android.app
-LOCAL_RESOURCE_DIR := res
-LOCAL_LIBS := lib/out/package.apk
-LOCAL_OUT := out
-LOCAL_GEN := out/gen
-LOCAL_PROGUARD := out/proguard.rule
-
-##
-# AAPT2 custom rules.
-##
-
-PRIVATE_R_FILE := $(LOCAL_GEN)/$(subst .,/,$(LOCAL_PACKAGE))/R.java
-$(info PRIVATE_R_FILE = $(PRIVATE_R_FILE))
-
-# Eg: framework.apk, etc.
-PRIVATE_INCLUDES := $(FRAMEWORK)
-$(info PRIVATE_INCLUDES = $(PRIVATE_INCLUDES))
-
-# Eg: res/drawable/icon.png, res/values/styles.xml
-PRIVATE_RESOURCES := $(shell find $(LOCAL_RESOURCE_DIR) -mindepth 1 -maxdepth 2 -type f)
-$(info PRIVATE_RESOURCES = $(PRIVATE_RESOURCES))
-
-PRIVATE_RESOURCE_OBJECTS := $(subst /,_,$(patsubst $(LOCAL_RESOURCE_DIR)/%,%,$(filter $(LOCAL_RESOURCE_DIR)/values%,$(PRIVATE_RESOURCES))))
-PRIVATE_RESOURCE_OBJECTS := $(addprefix $(LOCAL_OUT)/,$(PRIVATE_RESOURCE_OBJECTS:.xml=.arsc.flat))
-$(info PRIVATE_RESOURCE_OBJECTS = $(PRIVATE_RESOURCE_OBJECTS))
-
-PRIVATE_FILE_OBJECTS := $(subst /,_,$(patsubst $(LOCAL_RESOURCE_DIR)/%,%,$(filter-out $(LOCAL_RESOURCE_DIR)/values%,$(PRIVATE_RESOURCES))))
-PRIVATE_FILE_OBJECTS := $(addprefix $(LOCAL_OUT)/,$(addsuffix .flat,$(PRIVATE_FILE_OBJECTS)))
-$(info PRIVATE_FILE_OBJECTS = $(PRIVATE_FILE_OBJECTS))
-
-.SECONDEXPANSION:
-
-$(LOCAL_OUT)/%.arsc.flat: $(LOCAL_RESOURCE_DIR)/$$(subst _,/,%).xml
-	$(AAPT) compile -o $(LOCAL_OUT) $<
-
-$(LOCAL_OUT)/%.flat: $(LOCAL_RESOURCE_DIR)/$$(subst _,/,%)
-	$(AAPT) compile -o $(LOCAL_OUT) $<
-
-$(LOCAL_PROGUARD) $(LOCAL_OUT)/package.apk: AndroidManifest.xml
-$(PRIVATE_R_FILE) $(LOCAL_PROGUARD) $(LOCAL_OUT)/package.apk: $(PRIVATE_FILE_OBJECTS) $(PRIVATE_RESOURCE_OBJECTS)
-	$(AAPT) link -o $(LOCAL_OUT)/package.apk --manifest AndroidManifest.xml --java $(LOCAL_GEN) --proguard $(LOCAL_PROGUARD) -I $(PRIVATE_INCLUDES) $(filter-out AndroidManifest.xml,$^) -v
-
-# Create the out directory if needed.
-dummy := $(shell test -d $(LOCAL_OUT) || mkdir -p $(LOCAL_OUT))
-
-.PHONY: all
-all: $(LOCAL_OUT)/package.apk $(LOCAL_PROGUARD) $(PRIVATE_R_FILE)
-
-.DEFAULT_GOAL := all
diff --git a/tools/aapt2/data/lib/AndroidManifest.xml b/tools/aapt2/data/lib/AndroidManifest.xml
deleted file mode 100644
index 08b468e..0000000
--- a/tools/aapt2/data/lib/AndroidManifest.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="android.appcompat">
-
-    <uses-feature android:name="bloooop" />
-</manifest>
diff --git a/tools/aapt2/data/lib/Makefile b/tools/aapt2/data/lib/Makefile
deleted file mode 100644
index 741be9a..0000000
--- a/tools/aapt2/data/lib/Makefile
+++ /dev/null
@@ -1,81 +0,0 @@
-##
-# Environment dependent variables
-##
-
-AAPT := aapt2
-ZIPALIGN := zipalign -f 4
-FRAMEWORK := ../../../../../../out/target/common/obj/APPS/framework-res_intermediates/package-export.apk
-
-##
-# Project depenedent variables
-##
-
-LOCAL_PACKAGE := android.appcompat
-LOCAL_RESOURCE_DIR := res
-LOCAL_OUT := out
-LOCAL_GEN := out/gen
-
-##
-# AAPT2 custom rules.
-##
-
-PRIVATE_APK_UNALIGNED := $(LOCAL_OUT)/package-unaligned.apk
-PRIVATE_APK_ALIGNED := $(LOCAL_OUT)/package.apk
-
-# Eg: framework.apk, etc.
-PRIVATE_LIBS := $(FRAMEWORK)
-$(info PRIVATE_LIBS = $(PRIVATE_LIBS))
-
-# Eg: gen/com/android/app/R.java
-PRIVATE_R_JAVA := $(LOCAL_GEN)/$(subst .,/,$(LOCAL_PACKAGE))/R.java
-$(info PRIVATE_R_JAVA = $(PRIVATE_R_JAVA))
-
-# Eg: res/drawable/icon.png, res/values/styles.xml
-PRIVATE_RESOURCES := $(shell find $(LOCAL_RESOURCE_DIR) -mindepth 1 -maxdepth 2 -type f)
-$(info PRIVATE_RESOURCES = $(PRIVATE_RESOURCES))
-
-# Eg: drawable, values, layouts
-PRIVATE_RESOURCE_TYPES := \
-	$(patsubst $(LOCAL_RESOURCE_DIR)/%/,%,$(sort $(dir $(PRIVATE_RESOURCES))))
-$(info PRIVATE_RESOURCE_TYPES = $(PRIVATE_RESOURCE_TYPES))
-
-# Eg: out/values-v4.apk, out/drawable-xhdpi.apk
-PRIVATE_INTERMEDIATE_TABLES := $(patsubst %,$(LOCAL_OUT)/%.apk,$(PRIVATE_RESOURCE_TYPES))
-$(info PRIVATE_INTERMEDIATE_TABLES = $(PRIVATE_INTERMEDIATE_TABLES))
-
-# Generates rules for collect phase.
-# $1: Resource type (values-v4)
-# returns: out/values-v4.apk: res/values-v4/styles.xml res/values-v4/colors.xml
-define make-collect-rule
-$(LOCAL_OUT)/$1.apk: $(filter $(LOCAL_RESOURCE_DIR)/$1/%,$(PRIVATE_RESOURCES))
-	$(AAPT) compile -o $$@ $$^
-endef
-
-# Collect: out/values-v4.apk <- res/values-v4/styles.xml res/values-v4/colors.xml
-$(foreach d,$(PRIVATE_RESOURCE_TYPES),$(eval $(call make-collect-rule,$d)))
-
-# Link: out/package-unaligned.apk <- out/values-v4.apk out/drawable-v4.apk
-$(PRIVATE_APK_UNALIGNED): $(PRIVATE_INTERMEDIATE_TABLES) $(PRIVATE_LIBS) AndroidManifest.xml
-	$(AAPT) link --manifest AndroidManifest.xml $(addprefix -I ,$(PRIVATE_LIBS)) --java $(LOCAL_GEN) -o $@ $(PRIVATE_INTERMEDIATE_TABLES) --static-lib
-
-# R.java: gen/com/android/app/R.java <- out/resources.arsc
-# No action since R.java is generated when out/resources.arsc is.
-$(PRIVATE_R_JAVA): $(PRIVATE_APK_UNALIGNED)
-
-# Assemble: zip out/resources.arsc AndroidManifest.xml and res/**/*
-$(PRIVATE_APK_ALIGNED): $(PRIVATE_APK_UNALIGNED)
-	$(ZIPALIGN) $< $@
-
-# Create the out directory if needed.
-dummy := $(shell test -d $(LOCAL_OUT) || mkdir -p $(LOCAL_OUT))
-
-.PHONY: java
-java: $(PRIVATE_R_JAVA)
-
-.PHONY: assemble
-assemble: $(PRIVATE_APK_ALIGNED)
-
-.PHONY: all
-all: assemble java
-
-.DEFAULT_GOAL := all
diff --git a/tools/aapt2/data/lib/res/layout/main.xml b/tools/aapt2/data/lib/res/layout/main.xml
deleted file mode 100644
index 187ed2d..0000000
--- a/tools/aapt2/data/lib/res/layout/main.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"/>
diff --git a/tools/aapt2/data/lib/res/raw/hello.txt b/tools/aapt2/data/lib/res/raw/hello.txt
deleted file mode 100644
index 44fc22b..0000000
--- a/tools/aapt2/data/lib/res/raw/hello.txt
+++ /dev/null
@@ -1 +0,0 @@
-Oh howdy there
diff --git a/tools/aapt2/data/lib/res/values/styles.xml b/tools/aapt2/data/lib/res/values/styles.xml
deleted file mode 100644
index 4ce6333..0000000
--- a/tools/aapt2/data/lib/res/values/styles.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="Platform.AppCompat" parent="@android:style/Theme">
-        <item name="android:windowNoTitle">true</item>
-    </style>
-
-    <bool name="allow">true</bool>
-</resources>
diff --git a/tools/aapt2/data/res/drawable/image.xml b/tools/aapt2/data/res/drawable/image.xml
deleted file mode 100644
index 9b38739..0000000
--- a/tools/aapt2/data/res/drawable/image.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<vector />
diff --git a/tools/aapt2/data/res/layout-v21/main.xml b/tools/aapt2/data/res/layout-v21/main.xml
deleted file mode 100644
index 959b349..0000000
--- a/tools/aapt2/data/res/layout-v21/main.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:support="http://schemas.android.com/apk/res/android.appcompat"
-    android:id="@+id/view"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-</LinearLayout>
diff --git a/tools/aapt2/data/res/layout/main.xml b/tools/aapt2/data/res/layout/main.xml
deleted file mode 100644
index 8a5e9e8..0000000
--- a/tools/aapt2/data/res/layout/main.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-              xmlns:support="http://schemas.android.com/apk/res/android.appcompat"
-    android:id="@+id/view"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-
-    <fragment class="android.test.sample.App$Inner" />
-
-    <variable name="user" type="com.android.User" />
-
-    <View xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:id="@+id/me"
-        android:layout_width="1dp"
-        android:onClick="doClick"
-        android:text="@{user.name}"
-        android:background="#ffffff"
-        android:layout_height="match_parent"
-        app:flags="complex|weak"
-        android:colorAccent="#ffffff"/>
-</LinearLayout>
diff --git a/tools/aapt2/data/res/values-v4/styles.xml b/tools/aapt2/data/res/values-v4/styles.xml
deleted file mode 100644
index 979a82a..0000000
--- a/tools/aapt2/data/res/values-v4/styles.xml
+++ /dev/null
@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <style name="App" parent="android:Theme.Material">
-        <item name="android:colorAccent">@color/accent</item>
-        <item name="android:text">Hey</item>
-    </style>
-</resources>
diff --git a/tools/aapt2/data/res/values/colors.xml b/tools/aapt2/data/res/values/colors.xml
deleted file mode 100644
index 89db5fb..0000000
--- a/tools/aapt2/data/res/values/colors.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="primary">#f44336</color>
-    <color name="primary_dark">#b71c1c</color>
-    <color name="accent">#fdd835</color>
-</resources>
diff --git a/tools/aapt2/data/res/values/styles.xml b/tools/aapt2/data/res/values/styles.xml
deleted file mode 100644
index 2bbdad1..0000000
--- a/tools/aapt2/data/res/values/styles.xml
+++ /dev/null
@@ -1,25 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources xmlns:lib="http://schemas.android.com/apk/res/android.appcompat">
-    <style name="App">
-        <item name="android:background">@color/primary</item>
-        <item name="android:colorPrimary">@color/primary</item>
-        <item name="android:colorPrimaryDark">@color/primary_dark</item>
-        <item name="android:colorAccent">@color/accent</item>
-    </style>
-    <attr name="custom" format="reference" />
-    <style name="Pop">
-        <item name="custom">@android:drawable/btn_default</item>
-        <item name="android:focusable">true</item>
-    </style>
-    <string name="yo">@string/wow</string>
-
-    <declare-styleable name="View">
-        <attr name="custom" />
-        <attr name="decor">
-            <enum name="no-border" value="0"/>
-            <enum name="border" value="1"/>
-            <enum name="shadow" value="2"/>
-        </attr>
-    </declare-styleable>
-
-</resources>
diff --git a/tools/aapt2/data/res/values/test.xml b/tools/aapt2/data/res/values/test.xml
deleted file mode 100644
index d7ab1c8..0000000
--- a/tools/aapt2/data/res/values/test.xml
+++ /dev/null
@@ -1,13 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <string name="hooha"><font bgcolor="#ffffff">Hey guys!</font> <xliff:g>My</xliff:g> name is <b>Adam</b>. How <b><i>are</i></b> you?</string>
-    <public name="hooha" type="string" id="0x7f020001"/>
-    <string name="wow">@android:string/ok</string>
-    <public name="layout_width" type="attr" />
-    <attr name="layout_width" format="boolean" />
-    <attr name="flags">
-        <flag name="complex" value="1" />
-        <flag name="pub" value="2" />
-        <flag name="weak" value="4" />
-    </attr>
-</resources>
diff --git a/tools/aapt2/data/resources.arsc b/tools/aapt2/data/resources.arsc
deleted file mode 100644
index 6a416df..0000000
--- a/tools/aapt2/data/resources.arsc
+++ /dev/null
Binary files differ
diff --git a/tools/aapt2/data/resources_base.arsc b/tools/aapt2/data/resources_base.arsc
deleted file mode 100644
index f9d0610..0000000
--- a/tools/aapt2/data/resources_base.arsc
+++ /dev/null
Binary files differ
diff --git a/tools/aapt2/data/resources_hdpi.arsc b/tools/aapt2/data/resources_hdpi.arsc
deleted file mode 100644
index 97232a3..0000000
--- a/tools/aapt2/data/resources_hdpi.arsc
+++ /dev/null
Binary files differ
diff --git a/tools/aapt2/dump/Dump.cpp b/tools/aapt2/dump/Dump.cpp
index ad7de0a..56b9f9a 100644
--- a/tools/aapt2/dump/Dump.cpp
+++ b/tools/aapt2/dump/Dump.cpp
@@ -17,6 +17,7 @@
 #include "Debug.h"
 #include "Diagnostics.h"
 #include "Flags.h"
+#include "io/ZipArchive.h"
 #include "process/IResourceTableConsumer.h"
 #include "proto/ProtoSerialize.h"
 #include "util/Files.h"
@@ -56,6 +57,35 @@
 
 void tryDumpFile(IAaptContext* context, const std::string& filePath) {
     std::string err;
+    std::unique_ptr<io::ZipFileCollection> zip = io::ZipFileCollection::create(filePath, &err);
+    if (zip) {
+        io::IFile* file = zip->findFile("resources.arsc.flat");
+        if (file) {
+            std::unique_ptr<io::IData> data = file->openAsData();
+            if (!data) {
+                context->getDiagnostics()->error(DiagMessage(filePath)
+                                                 << "failed to open resources.arsc.flat");
+                return;
+            }
+
+            pb::ResourceTable pbTable;
+            if (!pbTable.ParseFromArray(data->data(), data->size())) {
+                context->getDiagnostics()->error(DiagMessage(filePath)
+                                                 << "invalid resources.arsc.flat");
+                return;
+            }
+
+            std::unique_ptr<ResourceTable> table = deserializeTableFromPb(
+                    pbTable, Source(filePath), context->getDiagnostics());
+            if (table) {
+                DebugPrintTableOptions debugPrintTableOptions;
+                debugPrintTableOptions.showSources = true;
+                Debug::printTable(table.get(), debugPrintTableOptions);
+            }
+        }
+        return;
+    }
+
     Maybe<android::FileMap> file = file::mmapPath(filePath, &err);
     if (!file) {
         context->getDiagnostics()->error(DiagMessage(filePath) << err);
@@ -90,15 +120,16 @@
         return nullptr;
     }
 
-    StringPiece16 getCompilationPackage() override {
-        return {};
+    const std::u16string& getCompilationPackage() override {
+        static std::u16string empty;
+        return empty;
     }
 
     uint8_t getPackageId() override {
         return 0;
     }
 
-    ISymbolTable* getExternalSymbols() override {
+    SymbolTable* getExternalSymbols() override {
         abort();
         return nullptr;
     }
diff --git a/tools/aapt2/flatten/XmlFlattener.cpp b/tools/aapt2/flatten/XmlFlattener.cpp
index 8219462..3eac633 100644
--- a/tools/aapt2/flatten/XmlFlattener.cpp
+++ b/tools/aapt2/flatten/XmlFlattener.cpp
@@ -144,9 +144,9 @@
     }
 
     static bool cmpXmlAttributeById(const xml::Attribute* a, const xml::Attribute* b) {
-        if (a->compiledAttribute) {
-            if (b->compiledAttribute) {
-                return a->compiledAttribute.value().id < b->compiledAttribute.value().id;
+        if (a->compiledAttribute && a->compiledAttribute.value().id) {
+            if (b->compiledAttribute && b->compiledAttribute.value().id) {
+                return a->compiledAttribute.value().id.value() < b->compiledAttribute.value().id.value();
             }
             return true;
         } else if (!b->compiledAttribute) {
@@ -167,8 +167,8 @@
 
         // Filter the attributes.
         for (xml::Attribute& attr : node->attributes) {
-            if (mOptions.maxSdkLevel && attr.compiledAttribute) {
-                size_t sdkLevel = findAttributeSdkLevel(attr.compiledAttribute.value().id);
+            if (mOptions.maxSdkLevel && attr.compiledAttribute && attr.compiledAttribute.value().id) {
+                size_t sdkLevel = findAttributeSdkLevel(attr.compiledAttribute.value().id.value());
                 if (sdkLevel > mOptions.maxSdkLevel.value()) {
                     continue;
                 }
@@ -191,8 +191,8 @@
         uint16_t attributeIndex = 1;
         for (const xml::Attribute* xmlAttr : mFilteredAttrs) {
             // Assign the indices for specific attributes.
-            if (xmlAttr->compiledAttribute &&
-                    xmlAttr->compiledAttribute.value().id == kIdAttr) {
+            if (xmlAttr->compiledAttribute && xmlAttr->compiledAttribute.value().id &&
+                    xmlAttr->compiledAttribute.value().id.value() == kIdAttr) {
                 flatElem->idIndex = util::hostToDevice16(attributeIndex);
             } else if (xmlAttr->namespaceUri.empty()) {
                 if (xmlAttr->name == u"class") {
@@ -208,7 +208,7 @@
 
             flatAttr->rawValue.index = util::hostToDevice32(-1);
 
-            if (!xmlAttr->compiledAttribute) {
+            if (!xmlAttr->compiledAttribute || !xmlAttr->compiledAttribute.value().id) {
                 // The attribute has no associated ResourceID, so the string order doesn't matter.
                 addString(xmlAttr->name, kLowPriority, &flatAttr->name);
             } else {
@@ -221,17 +221,17 @@
                 // Lookup the StringPool for this package and make the reference there.
                 const xml::AaptAttribute& aaptAttr = xmlAttr->compiledAttribute.value();
 
-                StringPool::Ref nameRef = mPackagePools[aaptAttr.id.packageId()].makeRef(
-                        xmlAttr->name, StringPool::Context{ aaptAttr.id.id });
+                StringPool::Ref nameRef = mPackagePools[aaptAttr.id.value().packageId()].makeRef(
+                        xmlAttr->name, StringPool::Context{ aaptAttr.id.value().id });
 
                 // Add it to the list of strings to flatten.
                 addString(nameRef, &flatAttr->name);
+            }
 
-                if (mOptions.keepRawValues) {
-                    // Keep raw values (this is for static libraries).
-                    // TODO(with a smarter inflater for binary XML, we can do without this).
-                    addString(xmlAttr->value, kLowPriority, &flatAttr->rawValue);
-                }
+            if (mOptions.keepRawValues || !xmlAttr->compiledValue) {
+                // Keep raw values if the value is not compiled or
+                // if we're building a static library (need symbols).
+                addString(xmlAttr->value, kLowPriority, &flatAttr->rawValue);
             }
 
             if (xmlAttr->compiledValue) {
@@ -240,7 +240,6 @@
             } else {
                 // Flatten as a regular string type.
                 flatAttr->typedValue.dataType = android::Res_value::TYPE_STRING;
-                addString(xmlAttr->value, kLowPriority, &flatAttr->rawValue);
                 addString(xmlAttr->value, kLowPriority,
                           (ResStringPool_ref*) &flatAttr->typedValue.data);
             }
diff --git a/tools/aapt2/flatten/XmlFlattener_test.cpp b/tools/aapt2/flatten/XmlFlattener_test.cpp
index 8648879..fef5ca3 100644
--- a/tools/aapt2/flatten/XmlFlattener_test.cpp
+++ b/tools/aapt2/flatten/XmlFlattener_test.cpp
@@ -32,7 +32,7 @@
         mContext = test::ContextBuilder()
                 .setCompilationPackage(u"com.app.test")
                 .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test" })
-                .setSymbolTable(test::StaticSymbolTableBuilder()
+                .addSymbolSource(test::StaticSymbolSourceBuilder()
                         .addSymbol(u"@android:attr/id", ResourceId(0x010100d0),
                                    test::AttributeBuilder().build())
                         .addSymbol(u"@com.app.test:id/id", ResourceId(0x7f020000))
diff --git a/tools/aapt2/integration-tests/Android.mk b/tools/aapt2/integration-tests/Android.mk
new file mode 100644
index 0000000..6361f9b
--- /dev/null
+++ b/tools/aapt2/integration-tests/Android.mk
@@ -0,0 +1,2 @@
+LOCAL_PATH := $(call my-dir)
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/tools/aapt2/integration-tests/AppOne/Android.mk b/tools/aapt2/integration-tests/AppOne/Android.mk
new file mode 100644
index 0000000..bc40a62
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/Android.mk
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_USE_AAPT2 := true
+LOCAL_PACKAGE_NAME := AaptTestAppOne
+LOCAL_MODULE_TAGS := tests
+LOCAL_SRC_FILES := $(call all-java-files-under,src)
+LOCAL_STATIC_ANDROID_LIBRARIES := \
+    AaptTestStaticLibOne \
+    AaptTestStaticLibTwo
+LOCAL_AAPT_FLAGS := --no-version-vectors
+include $(BUILD_PACKAGE)
diff --git a/tools/aapt2/integration-tests/AppOne/AndroidManifest.xml b/tools/aapt2/integration-tests/AppOne/AndroidManifest.xml
new file mode 100644
index 0000000..b6d8f2d
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/AndroidManifest.xml
@@ -0,0 +1,17 @@
+<?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.
+-->
+
+<manifest package="com.android.aapt.app.one" />
diff --git a/tools/aapt2/data/res/drawable/icon.png b/tools/aapt2/integration-tests/AppOne/res/drawable/icon.png
similarity index 100%
rename from tools/aapt2/data/res/drawable/icon.png
rename to tools/aapt2/integration-tests/AppOne/res/drawable/icon.png
Binary files differ
diff --git a/tools/aapt2/integration-tests/AppOne/res/drawable/image.xml b/tools/aapt2/integration-tests/AppOne/res/drawable/image.xml
new file mode 100644
index 0000000..6132a75
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/drawable/image.xml
@@ -0,0 +1,17 @@
+<?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.
+-->
+
+<vector />
diff --git a/tools/aapt2/data/res/drawable/test.9.png b/tools/aapt2/integration-tests/AppOne/res/drawable/test.9.png
similarity index 100%
rename from tools/aapt2/data/res/drawable/test.9.png
rename to tools/aapt2/integration-tests/AppOne/res/drawable/test.9.png
Binary files differ
diff --git a/tools/aapt2/integration-tests/AppOne/res/layout-v21/main.xml b/tools/aapt2/integration-tests/AppOne/res/layout-v21/main.xml
new file mode 100644
index 0000000..9f5a4a8
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/layout-v21/main.xml
@@ -0,0 +1,22 @@
+<?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:support="http://schemas.android.com/apk/res/android.appcompat"
+    android:id="@+id/view"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+</LinearLayout>
diff --git a/tools/aapt2/integration-tests/AppOne/res/layout/main.xml b/tools/aapt2/integration-tests/AppOne/res/layout/main.xml
new file mode 100644
index 0000000..ab1a251
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/layout/main.xml
@@ -0,0 +1,36 @@
+<?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:support="http://schemas.android.com/apk/res/android.appcompat"
+    android:id="@+id/view"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <fragment class="android.test.sample.App$Inner" />
+
+    <variable name="user" type="com.android.User" />
+
+    <View xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:id="@+id/me"
+        android:layout_width="1dp"
+        android:onClick="doClick"
+        android:text="@{user.name}"
+        android:background="#ffffff"
+        android:layout_height="match_parent"
+        app:flags="complex|weak"
+        android:colorAccent="#ffffff"/>
+</LinearLayout>
diff --git a/tools/aapt2/data/res/raw/test.txt b/tools/aapt2/integration-tests/AppOne/res/raw/test.txt
similarity index 100%
rename from tools/aapt2/data/res/raw/test.txt
rename to tools/aapt2/integration-tests/AppOne/res/raw/test.txt
diff --git a/tools/aapt2/integration-tests/AppOne/res/values-v4/styles.xml b/tools/aapt2/integration-tests/AppOne/res/values-v4/styles.xml
new file mode 100644
index 0000000..d8c11e2
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/values-v4/styles.xml
@@ -0,0 +1,22 @@
+<?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>
+    <style name="App" parent="android:Theme.Material">
+        <item name="android:colorAccent">@color/accent</item>
+        <item name="android:text">Hey</item>
+    </style>
+</resources>
diff --git a/tools/aapt2/integration-tests/AppOne/res/values/colors.xml b/tools/aapt2/integration-tests/AppOne/res/values/colors.xml
new file mode 100644
index 0000000..4df5077
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/values/colors.xml
@@ -0,0 +1,21 @@
+<?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="primary">#f44336</color>
+    <color name="primary_dark">#b71c1c</color>
+    <color name="accent">#fdd835</color>
+</resources>
diff --git a/tools/aapt2/integration-tests/AppOne/res/values/styles.xml b/tools/aapt2/integration-tests/AppOne/res/values/styles.xml
new file mode 100644
index 0000000..f05845c
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/values/styles.xml
@@ -0,0 +1,40 @@
+<?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 xmlns:lib="http://schemas.android.com/apk/res/android.appcompat">
+    <style name="App">
+        <item name="android:background">@color/primary</item>
+        <item name="android:colorPrimary">@color/primary</item>
+        <item name="android:colorPrimaryDark">@color/primary_dark</item>
+        <item name="android:colorAccent">@color/accent</item>
+    </style>
+    <attr name="custom" format="reference" />
+    <style name="Pop">
+        <item name="custom">@android:drawable/btn_default</item>
+        <item name="android:focusable">true</item>
+    </style>
+    <string name="yo">@string/wow</string>
+
+    <declare-styleable name="View">
+        <attr name="custom" />
+        <attr name="decor">
+            <enum name="no-border" value="0"/>
+            <enum name="border" value="1"/>
+            <enum name="shadow" value="2"/>
+        </attr>
+    </declare-styleable>
+
+</resources>
diff --git a/tools/aapt2/integration-tests/AppOne/res/values/test.xml b/tools/aapt2/integration-tests/AppOne/res/values/test.xml
new file mode 100644
index 0000000..f4b7471
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/res/values/test.xml
@@ -0,0 +1,32 @@
+<?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 xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
+    <!-- Reference the two static libraries -->
+    <string name="AppFooBar">@string/FooBar</string>
+    <string name="AppFoo">@string/Foo</string>
+
+    <string name="hooha"><font bgcolor="#ffffff">Hey guys!</font> <xliff:g>My</xliff:g> name is <b>Adam</b>. How <b><i>are</i></b> you?</string>
+    <public name="hooha" type="string" id="0x7f020001"/>
+    <string name="wow">@android:string/ok</string>
+    <public name="layout_width" type="attr" />
+    <attr name="layout_width" format="boolean" />
+    <attr name="flags">
+        <flag name="complex" value="1" />
+        <flag name="pub" value="2" />
+        <flag name="weak" value="4" />
+    </attr>
+</resources>
diff --git a/tools/aapt2/integration-tests/AppOne/src/com/android/aapt/app/one/AppOne.java b/tools/aapt2/integration-tests/AppOne/src/com/android/aapt/app/one/AppOne.java
new file mode 100644
index 0000000..472b35a
--- /dev/null
+++ b/tools/aapt2/integration-tests/AppOne/src/com/android/aapt/app/one/AppOne.java
@@ -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.
+ */
+package com.android.aapt.app.one;
+
+public class AppOne {
+    // IDs from StaticLibOne
+    public static int FooId = com.android.aapt.staticlib.one.R.string.Foo;
+    public static int LayoutId = com.android.aapt.staticlib.one.R.layout.layout;
+
+    // IDs from StaticLibTwo
+    public static int FooBarId = com.android.aapt.staticlib.two.R.string.FooBar;
+}
+
diff --git a/tools/aapt2/integration-tests/StaticLibOne/Android.mk b/tools/aapt2/integration-tests/StaticLibOne/Android.mk
new file mode 100644
index 0000000..d59dc60
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibOne/Android.mk
@@ -0,0 +1,25 @@
+#
+# 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_USE_AAPT2 := true
+LOCAL_MODULE := AaptTestStaticLibOne
+LOCAL_MODULE_TAGS := tests
+LOCAL_SRC_FILES := $(call all-java-files-under,src)
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+include $(BUILD_STATIC_JAVA_LIBRARY)
diff --git a/tools/aapt2/integration-tests/StaticLibOne/AndroidManifest.xml b/tools/aapt2/integration-tests/StaticLibOne/AndroidManifest.xml
new file mode 100644
index 0000000..705047e
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibOne/AndroidManifest.xml
@@ -0,0 +1,17 @@
+<?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.
+-->
+
+<manifest package="com.android.aapt.staticlib.one" />
diff --git a/tools/aapt2/integration-tests/StaticLibOne/res/layout/layout.xml b/tools/aapt2/integration-tests/StaticLibOne/res/layout/layout.xml
new file mode 100644
index 0000000..683c91c
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibOne/res/layout/layout.xml
@@ -0,0 +1,18 @@
+<?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.
+-->
+
+<View xmlns:android="http://schemas.android.com/apk/res/android"
+      android:text="@string/Foo" />
diff --git a/tools/aapt2/integration-tests/StaticLibOne/res/values/values.xml b/tools/aapt2/integration-tests/StaticLibOne/res/values/values.xml
new file mode 100644
index 0000000..2b24544
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibOne/res/values/values.xml
@@ -0,0 +1,22 @@
+<?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>
+    <attr name="StaticLibOne_attr" format="string" />
+
+    <string name="Foo">Foo</string>
+    <string name="Foo" product="tablet">Bar</string>
+</resources>
diff --git a/tools/aapt2/integration-tests/StaticLibOne/src/com/android/aapt/staticlib/one/StaticLibOne.java b/tools/aapt2/integration-tests/StaticLibOne/src/com/android/aapt/staticlib/one/StaticLibOne.java
new file mode 100644
index 0000000..cf48f67
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibOne/src/com/android/aapt/staticlib/one/StaticLibOne.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.aapt.staticlib.one;
+
+public class StaticLibOne {
+    // IDs from StaticLibOne
+    public static int FooId = com.android.aapt.staticlib.one.R.string.Foo;
+    public static int LayoutId = com.android.aapt.staticlib.one.R.layout.layout;
+}
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/Android.mk b/tools/aapt2/integration-tests/StaticLibTwo/Android.mk
new file mode 100644
index 0000000..8b6eb41
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/Android.mk
@@ -0,0 +1,27 @@
+#
+# 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_USE_AAPT2 := true
+LOCAL_MODULE := AaptTestStaticLibTwo
+LOCAL_MODULE_TAGS := tests
+LOCAL_SRC_FILES := $(call all-java-files-under,src)
+LOCAL_RESOURCE_DIR := $(LOCAL_PATH)/res
+LOCAL_SHARED_ANDROID_LIBRARIES := AaptTestStaticLibOne
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/AndroidManifest.xml b/tools/aapt2/integration-tests/StaticLibTwo/AndroidManifest.xml
new file mode 100644
index 0000000..28f0699
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/AndroidManifest.xml
@@ -0,0 +1,17 @@
+<?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.
+-->
+
+<manifest package="com.android.aapt.staticlib.two" />
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/res/drawable/vector.xml b/tools/aapt2/integration-tests/StaticLibTwo/res/drawable/vector.xml
new file mode 100644
index 0000000..dd5979f
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/res/drawable/vector.xml
@@ -0,0 +1,3 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:pathData="1123"/>
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/res/layout/layout_two.xml b/tools/aapt2/integration-tests/StaticLibTwo/res/layout/layout_two.xml
new file mode 100644
index 0000000..ba98307
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/res/layout/layout_two.xml
@@ -0,0 +1,18 @@
+<?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.
+-->
+
+<View xmlns:custom="http://schemas.android.com/apk/res-auto"
+      custom:StaticLibOne_attr="@string/FooBar" />
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/res/values/values.xml b/tools/aapt2/integration-tests/StaticLibTwo/res/values/values.xml
new file mode 100644
index 0000000..97bb2a5
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/res/values/values.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<resources>
+    <string name="FooBar">@string/Foo</string>
+</resources>
diff --git a/tools/aapt2/integration-tests/StaticLibTwo/src/com/android/aapt/staticlib/two/StaticLibTwo.java b/tools/aapt2/integration-tests/StaticLibTwo/src/com/android/aapt/staticlib/two/StaticLibTwo.java
new file mode 100644
index 0000000..7110dcd
--- /dev/null
+++ b/tools/aapt2/integration-tests/StaticLibTwo/src/com/android/aapt/staticlib/two/StaticLibTwo.java
@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.aapt.staticlib.two;
+
+public class StaticLibTwo {
+    // IDs from StaticLibOne
+    public static int FooId = com.android.aapt.staticlib.one.R.string.Foo;
+    public static int LayoutId = com.android.aapt.staticlib.one.R.layout.layout;
+
+    // IDs from StaticLibTwo
+    public static int FooBarId = com.android.aapt.staticlib.two.R.string.FooBar;
+}
diff --git a/tools/aapt2/io/ZipArchive.cpp b/tools/aapt2/io/ZipArchive.cpp
index 329dac9..b3e7a02 100644
--- a/tools/aapt2/io/ZipArchive.cpp
+++ b/tools/aapt2/io/ZipArchive.cpp
@@ -92,9 +92,8 @@
         return {};
     }
 
-    ZipString suffix(".flat");
     void* cookie = nullptr;
-    result = StartIteration(collection->mHandle, &cookie, nullptr, &suffix);
+    result = StartIteration(collection->mHandle, &cookie, nullptr, nullptr);
     if (result != 0) {
         if (outError) *outError = ErrorCodeString(result);
         return {};
diff --git a/tools/aapt2/java/ClassDefinitionWriter.h b/tools/aapt2/java/ClassDefinitionWriter.h
index 04e1274..cf92c9a 100644
--- a/tools/aapt2/java/ClassDefinitionWriter.h
+++ b/tools/aapt2/java/ClassDefinitionWriter.h
@@ -65,7 +65,7 @@
              << "String " << name << "=\"" << val << "\";\n";
     }
 
-    void addResourceMember(const StringPiece16& name, AnnotationProcessor* processor,
+    void addResourceMember(const StringPiece& name, AnnotationProcessor* processor,
                            const ResourceId id) {
         ensureClassDeclaration();
         if (processor) {
@@ -76,7 +76,7 @@
     }
 
     template <typename Iterator, typename FieldAccessorFunc>
-    void addArrayMember(const StringPiece16& name, AnnotationProcessor* processor,
+    void addArrayMember(const StringPiece& name, AnnotationProcessor* processor,
                         const Iterator begin, const Iterator end, FieldAccessorFunc f) {
         ensureClassDeclaration();
         if (processor) {
diff --git a/tools/aapt2/java/JavaClassGenerator.cpp b/tools/aapt2/java/JavaClassGenerator.cpp
index 6e340a2..1076ffe 100644
--- a/tools/aapt2/java/JavaClassGenerator.cpp
+++ b/tools/aapt2/java/JavaClassGenerator.cpp
@@ -68,16 +68,41 @@
  * Java symbols can not contain . or -, but those are valid in a resource name.
  * Replace those with '_'.
  */
-static std::u16string transform(const StringPiece16& symbol) {
-    std::u16string output = symbol.toString();
-    for (char16_t& c : output) {
-        if (c == u'.' || c == u'-') {
-            c = u'_';
+static std::string transform(const StringPiece16& symbol) {
+    std::string output = util::utf16ToUtf8(symbol);
+    for (char& c : output) {
+        if (c == '.' || c == '-') {
+            c = '_';
         }
     }
     return output;
 }
 
+/**
+ * Transforms an attribute in a styleable to the Java field name:
+ *
+ * <declare-styleable name="Foo">
+ *   <attr name="android:bar" />
+ *   <attr name="bar" />
+ * </declare-styleable>
+ *
+ * Foo_android_bar
+ * Foo_bar
+ */
+static std::string transformNestedAttr(const ResourceNameRef& attrName,
+                                       const std::string& styleableClassName,
+                                       const StringPiece16& packageNameToGenerate) {
+    std::string output = styleableClassName;
+
+    // We may reference IDs from other packages, so prefix the entry name with
+    // the package.
+    if (!attrName.package.empty() && packageNameToGenerate != attrName.package) {
+        output += "_" + transform(attrName.package);
+    }
+    output += "_" + transform(attrName.entry);
+    return output;
+}
+
 bool JavaClassGenerator::skipSymbol(SymbolState state) {
     switch (mOptions.types) {
     case JavaClassGeneratorOptions::SymbolTypes::kAll:
@@ -90,48 +115,91 @@
     return true;
 }
 
+struct StyleableAttr {
+    const Reference* attrRef;
+    std::string fieldName;
+};
+
+static bool lessStyleableAttr(const StyleableAttr& lhs, const StyleableAttr& rhs) {
+    const ResourceId lhsId = lhs.attrRef->id ? lhs.attrRef->id.value() : ResourceId(0);
+    const ResourceId rhsId = rhs.attrRef->id ? rhs.attrRef->id.value() : ResourceId(0);
+    if (lhsId < rhsId) {
+        return true;
+    } else if (lhsId > rhsId) {
+        return false;
+    } else {
+        return lhs.attrRef->name.value() < rhs.attrRef->name.value();
+    }
+}
+
 void JavaClassGenerator::writeStyleableEntryForClass(ClassDefinitionWriter* outClassDef,
                                                      AnnotationProcessor* processor,
                                                      const StringPiece16& packageNameToGenerate,
                                                      const std::u16string& entryName,
                                                      const Styleable* styleable) {
+    const std::string className = transform(entryName);
+
     // This must be sorted by resource ID.
-    std::vector<std::pair<ResourceId, ResourceNameRef>> sortedAttributes;
+    std::vector<StyleableAttr> sortedAttributes;
     sortedAttributes.reserve(styleable->entries.size());
     for (const auto& attr : styleable->entries) {
         // If we are not encoding final attributes, the styleable entry may have no ID
         // if we are building a static library.
         assert((!mOptions.useFinal || attr.id) && "no ID set for Styleable entry");
         assert(attr.name && "no name set for Styleable entry");
-        sortedAttributes.emplace_back(attr.id ? attr.id.value() : ResourceId(0), attr.name.value());
-    }
-    std::sort(sortedAttributes.begin(), sortedAttributes.end());
 
-    auto accessorFunc = [](const std::pair<ResourceId, ResourceNameRef>& a) -> ResourceId {
-        return a.first;
+        sortedAttributes.emplace_back(StyleableAttr{
+                &attr, transformNestedAttr(attr.name.value(), className, packageNameToGenerate) });
+    }
+    std::sort(sortedAttributes.begin(), sortedAttributes.end(), lessStyleableAttr);
+
+    const size_t attrCount = sortedAttributes.size();
+
+    if (attrCount > 0) {
+        // Build the comment string for the Styleable. It includes details about the
+        // child attributes.
+        std::stringstream styleableComment;
+        styleableComment << "Attributes that can be used with a " << className << ".\n";
+        styleableComment << "<table>\n"
+                "<colgroup align=\"left\" />\n"
+                "<colgroup align=\"left\">\n"
+                "<tr><th>Attribute</th><th>Description</th></tr>\n";
+        for (const auto& entry : sortedAttributes) {
+            const ResourceName& attrName = entry.attrRef->name.value();
+            styleableComment << "<tr><td><code>{@link #" << entry.fieldName << " "
+                    << attrName.package << ":" << attrName.entry
+                    << "}</code></td><td></td></tr>\n";
+        }
+        styleableComment << "</table>\n";
+        for (const auto& entry : sortedAttributes) {
+            styleableComment << "@see #" << entry.fieldName << "\n";
+        }
+        processor->appendComment(styleableComment.str());
+    }
+
+    auto accessorFunc = [](const StyleableAttr& a) -> ResourceId {
+        return a.attrRef->id ? a.attrRef->id.value() : ResourceId(0);
     };
 
     // First we emit the array containing the IDs of each attribute.
-    outClassDef->addArrayMember(transform(entryName), processor,
+    outClassDef->addArrayMember(className, processor,
                                 sortedAttributes.begin(),
                                 sortedAttributes.end(),
                                 accessorFunc);
 
     // Now we emit the indices into the array.
-    size_t attrCount = sortedAttributes.size();
     for (size_t i = 0; i < attrCount; i++) {
-        std::stringstream name;
-        name << transform(entryName);
+        const ResourceName& attrName = sortedAttributes[i].attrRef->name.value();
 
-        // We may reference IDs from other packages, so prefix the entry name with
-        // the package.
-        const ResourceNameRef& itemName = sortedAttributes[i].second;
-        if (!itemName.package.empty() && packageNameToGenerate != itemName.package) {
-            name << "_" << transform(itemName.package);
+        AnnotationProcessor attrProcessor;
+        std::stringstream doclavaComments;
+        doclavaComments << "@attr name ";
+        if (!attrName.package.empty()) {
+            doclavaComments << attrName.package << ":";
         }
-        name << "_" << transform(itemName.entry);
-
-        outClassDef->addIntMember(name.str(), nullptr, i);
+        doclavaComments << attrName.entry;
+        attrProcessor.appendComment(doclavaComments.str());
+        outClassDef->addIntMember(sortedAttributes[i].fieldName, &attrProcessor, i);
     }
 }
 
@@ -223,8 +291,10 @@
             continue;
         }
 
-        ResourceId id(package->id.value(), type->id.value(), entry->id.value());
-        assert(id.isValid());
+        ResourceId id;
+        if (package->id && type->id && entry->id) {
+            id = ResourceId(package->id.value(), type->id.value(), entry->id.value());
+        }
 
         std::u16string unmangledPackage;
         std::u16string unmangledName = entry->name;
diff --git a/tools/aapt2/java/JavaClassGenerator_test.cpp b/tools/aapt2/java/JavaClassGenerator_test.cpp
index e9e7881..63d38a8 100644
--- a/tools/aapt2/java/JavaClassGenerator_test.cpp
+++ b/tools/aapt2/java/JavaClassGenerator_test.cpp
@@ -227,7 +227,32 @@
 }
 
 TEST(JavaClassGeneratorTest, CommentsForStyleablesAndNestedAttributesArePresent) {
+    Attribute attr(false);
+    attr.setComment(StringPiece16(u"This is an attribute"));
 
+    Styleable styleable;
+    styleable.entries.push_back(Reference(test::parseNameOrDie(u"@android:attr/one")));
+    styleable.setComment(StringPiece16(u"This is a styleable"));
+
+    std::unique_ptr<ResourceTable> table = test::ResourceTableBuilder()
+            .setPackageId(u"android", 0x01)
+            .addValue(u"@android:attr/one", util::make_unique<Attribute>(attr))
+            .addValue(u"@android:styleable/Container",
+                      std::unique_ptr<Styleable>(styleable.clone(nullptr)))
+            .build();
+
+    JavaClassGeneratorOptions options;
+    options.useFinal = false;
+    JavaClassGenerator generator(table.get(), options);
+
+    std::stringstream out;
+    ASSERT_TRUE(generator.generate(u"android", &out));
+    std::string actual = out.str();
+
+    EXPECT_NE(std::string::npos, actual.find("@attr name android:one"));
+    EXPECT_NE(std::string::npos, actual.find("@attr description"));
+    EXPECT_NE(std::string::npos, actual.find(util::utf16ToUtf8(attr.getComment())));
+    EXPECT_NE(std::string::npos, actual.find(util::utf16ToUtf8(styleable.getComment())));
 }
 
 } // namespace aapt
diff --git a/tools/aapt2/link/Link.cpp b/tools/aapt2/link/Link.cpp
index d83f6def..5003d96 100644
--- a/tools/aapt2/link/Link.cpp
+++ b/tools/aapt2/link/Link.cpp
@@ -62,7 +62,9 @@
     std::set<std::u16string> extraJavaPackages;
     Maybe<std::string> generateProguardRulesPath;
     bool noAutoVersion = false;
+    bool noVersionVectors = false;
     bool staticLib = false;
+    bool noStaticLibPackages = false;
     bool generateNonFinalIds = false;
     bool outputToDirectory = false;
     bool autoAddOverlay = false;
@@ -74,37 +76,58 @@
     TableSplitterOptions tableSplitterOptions;
 };
 
-struct LinkContext : public IAaptContext {
-    StdErrDiagnostics mDiagnostics;
-    std::unique_ptr<NameMangler> mNameMangler;
-    std::u16string mCompilationPackage;
-    uint8_t mPackageId;
-    std::unique_ptr<ISymbolTable> mSymbols;
-    bool mVerbose = false;
+class LinkContext : public IAaptContext {
+public:
+    LinkContext() : mNameMangler({}) {
+    }
 
     IDiagnostics* getDiagnostics() override {
         return &mDiagnostics;
     }
 
     NameMangler* getNameMangler() override {
-        return mNameMangler.get();
+        return &mNameMangler;
     }
 
-    StringPiece16 getCompilationPackage() override {
+    void setNameManglerPolicy(const NameManglerPolicy& policy) {
+        mNameMangler = NameMangler(policy);
+    }
+
+    const std::u16string& getCompilationPackage() override {
         return mCompilationPackage;
     }
 
+    void setCompilationPackage(const StringPiece16& packageName) {
+        mCompilationPackage = packageName.toString();
+    }
+
     uint8_t getPackageId() override {
         return mPackageId;
     }
 
-    ISymbolTable* getExternalSymbols() override {
-        return mSymbols.get();
+    void setPackageId(uint8_t id) {
+        mPackageId = id;
+    }
+
+    SymbolTable* getExternalSymbols() override {
+        return &mSymbols;
     }
 
     bool verbose() override {
         return mVerbose;
     }
+
+    void setVerbose(bool val) {
+        mVerbose = val;
+    }
+
+private:
+    StdErrDiagnostics mDiagnostics;
+    NameMangler mNameMangler;
+    std::u16string mCompilationPackage;
+    uint8_t mPackageId = 0x0;
+    SymbolTable mSymbols;
+    bool mVerbose = false;
 };
 
 static bool copyFileToArchive(io::IFile* file, const std::string& outPath,
@@ -117,11 +140,19 @@
         return false;
     }
 
-    CompiledFileInputStream inputStream(data->data(), data->size());
-    if (!inputStream.CompiledFile()) {
-        context->getDiagnostics()->error(DiagMessage(file->getSource())
-                                         << "invalid compiled file header");
-        return false;
+    const uint8_t* buffer = reinterpret_cast<const uint8_t*>(data->data());
+    size_t bufferSize = data->size();
+
+    // If the file ends with .flat, we must strip off the CompiledFileHeader from it.
+    if (util::stringEndsWith<char>(file->getSource().path, ".flat")) {
+        CompiledFileInputStream inputStream(data->data(), data->size());
+        if (!inputStream.CompiledFile()) {
+            context->getDiagnostics()->error(DiagMessage(file->getSource())
+                                             << "invalid compiled file header");
+            return false;
+        }
+        buffer = reinterpret_cast<const uint8_t*>(inputStream.data());
+        bufferSize = inputStream.size();
     }
 
     if (context->verbose()) {
@@ -129,8 +160,7 @@
     }
 
     if (writer->startEntry(outPath, compressionFlags)) {
-        if (writer->writeEntry(reinterpret_cast<const uint8_t*>(inputStream.data()),
-                               inputStream.size())) {
+        if (writer->writeEntry(buffer, bufferSize)) {
             if (writer->finishEntry()) {
                 return true;
             }
@@ -156,7 +186,7 @@
         DiagMessage msg;
         msg << "writing " << path << " to archive";
         if (maxSdkLevel) {
-            msg << " maxSdkLevel=" << maxSdkLevel.value();
+            msg << " maxSdkLevel=" << maxSdkLevel.value() << " keepRawValues=" << keepRawValues;
         }
         context->getDiagnostics()->note(msg);
     }
@@ -248,6 +278,7 @@
 
 struct ResourceFileFlattenerOptions {
     bool noAutoVersion = false;
+    bool noVersionVectors = false;
     bool keepRawValues = false;
     bool doNotCompressAnything = false;
     std::vector<std::string> extensionsToNotCompress;
@@ -267,14 +298,13 @@
         io::IFile* fileToCopy;
         std::unique_ptr<xml::XmlResource> xmlToFlatten;
         std::string dstPath;
+        bool skipVersion = false;
     };
 
     uint32_t getCompressionFlags(const StringPiece& str);
 
-    std::unique_ptr<xml::XmlResource> linkAndVersionXmlFile(const ResourceEntry* entry,
-                                                            const ResourceFile& fileDesc,
-                                                            io::IFile* file,
-                                                            ResourceTable* table);
+    bool linkAndVersionXmlFile(const ResourceEntry* entry, const ResourceFile& fileDesc,
+                               io::IFile* file, ResourceTable* table, FileOperation* outFileOp);
 
     ResourceFileFlattenerOptions mOptions;
     IAaptContext* mContext;
@@ -294,11 +324,11 @@
     return ArchiveEntry::kCompress;
 }
 
-std::unique_ptr<xml::XmlResource> ResourceFileFlattener::linkAndVersionXmlFile(
-        const ResourceEntry* entry,
-        const ResourceFile& fileDesc,
-        io::IFile* file,
-        ResourceTable* table) {
+bool ResourceFileFlattener::linkAndVersionXmlFile(const ResourceEntry* entry,
+                                                  const ResourceFile& fileDesc,
+                                                  io::IFile* file,
+                                                  ResourceTable* table,
+                                                  FileOperation* outFileOp) {
     const StringPiece srcPath = file->getSource().path;
     if (mContext->verbose()) {
         mContext->getDiagnostics()->note(DiagMessage() << "linking " << srcPath);
@@ -307,51 +337,67 @@
     std::unique_ptr<io::IData> data = file->openAsData();
     if (!data) {
         mContext->getDiagnostics()->error(DiagMessage(file->getSource()) << "failed to open file");
-        return {};
+        return false;
     }
 
-    std::unique_ptr<xml::XmlResource> xmlRes;
     if (util::stringEndsWith<char>(srcPath, ".flat")) {
-        xmlRes = loadBinaryXmlSkipFileExport(file->getSource(), data->data(), data->size(),
-                                             mContext->getDiagnostics());
+        outFileOp->xmlToFlatten = loadBinaryXmlSkipFileExport(file->getSource(),
+                                                              data->data(), data->size(),
+                                                              mContext->getDiagnostics());
     } else {
-        xmlRes = xml::inflate(data->data(), data->size(), mContext->getDiagnostics(),
-                              file->getSource());
+        outFileOp->xmlToFlatten = xml::inflate(data->data(), data->size(),
+                                               mContext->getDiagnostics(),
+                                               file->getSource());
     }
 
-    if (!xmlRes) {
-        return {};
+    if (!outFileOp->xmlToFlatten) {
+        return false;
     }
 
     // Copy the the file description header.
-    xmlRes->file = fileDesc;
+    outFileOp->xmlToFlatten->file = fileDesc;
 
     XmlReferenceLinker xmlLinker;
-    if (!xmlLinker.consume(mContext, xmlRes.get())) {
-        return {};
+    if (!xmlLinker.consume(mContext, outFileOp->xmlToFlatten.get())) {
+        return false;
     }
 
-    if (!proguard::collectProguardRules(xmlRes->file.source, xmlRes.get(), mKeepSet)) {
-        return {};
+    if (!proguard::collectProguardRules(outFileOp->xmlToFlatten->file.source,
+                                        outFileOp->xmlToFlatten.get(), mKeepSet)) {
+        return false;
     }
 
     if (!mOptions.noAutoVersion) {
+        if (mOptions.noVersionVectors) {
+            // Skip this if it is a vector or animated-vector.
+            xml::Element* el = xml::findRootElement(outFileOp->xmlToFlatten.get());
+            if (el && el->namespaceUri.empty()) {
+                if (el->name == u"vector" || el->name == u"animated-vector") {
+                    // We are NOT going to version this file.
+                    outFileOp->skipVersion = true;
+                    return true;
+                }
+            }
+        }
+
         // Find the first SDK level used that is higher than this defined config and
         // not superseded by a lower or equal SDK level resource.
         for (int sdkLevel : xmlLinker.getSdkLevels()) {
-            if (sdkLevel > xmlRes->file.config.sdkVersion) {
-                if (!shouldGenerateVersionedResource(entry, xmlRes->file.config, sdkLevel)) {
+            if (sdkLevel > outFileOp->xmlToFlatten->file.config.sdkVersion) {
+                if (!shouldGenerateVersionedResource(entry, outFileOp->xmlToFlatten->file.config,
+                                                     sdkLevel)) {
                     // If we shouldn't generate a versioned resource, stop checking.
                     break;
                 }
 
-                ResourceFile versionedFileDesc = xmlRes->file;
-                versionedFileDesc.config.sdkVersion = sdkLevel;
+                ResourceFile versionedFileDesc = outFileOp->xmlToFlatten->file;
+                versionedFileDesc.config.sdkVersion = (uint16_t) sdkLevel;
 
                 if (mContext->verbose()) {
                     mContext->getDiagnostics()->note(DiagMessage(versionedFileDesc.source)
                                                      << "auto-versioning resource from config '"
-                                                     << xmlRes->file.config << "' -> '"
+                                                     << outFileOp->xmlToFlatten->file.config
+                                                     << "' -> '"
                                                      << versionedFileDesc.config << "'");
                 }
 
@@ -365,13 +411,13 @@
                                                                  file,
                                                                  mContext->getDiagnostics());
                 if (!added) {
-                    return {};
+                    return false;
                 }
                 break;
             }
         }
     }
-    return xmlRes;
+    return true;
 }
 
 /**
@@ -415,9 +461,7 @@
                         fileDesc.config = configValue->config;
                         fileDesc.name = ResourceName(pkg->name, type->type, entry->name);
                         fileDesc.source = fileRef->getSource();
-                        fileOp.xmlToFlatten = linkAndVersionXmlFile(entry.get(), fileDesc,
-                                                                    file, table);
-                        if (!fileOp.xmlToFlatten) {
+                        if (!linkAndVersionXmlFile(entry.get(), fileDesc, file, table, &fileOp)) {
                             error = true;
                             continue;
                         }
@@ -447,7 +491,7 @@
 
                 if (fileOp.xmlToFlatten) {
                     Maybe<size_t> maxSdkLevel;
-                    if (!mOptions.noAutoVersion) {
+                    if (!mOptions.noAutoVersion && !fileOp.skipVersion) {
                         maxSdkLevel = std::max<size_t>(config.sdkVersion, 1u);
                     }
 
@@ -474,39 +518,61 @@
 class LinkCommand {
 public:
     LinkCommand(LinkContext* context, const LinkOptions& options) :
-            mOptions(options), mContext(context), mFinalTable(), mFileCollection(nullptr) {
-        std::unique_ptr<io::FileCollection> fileCollection =
-                util::make_unique<io::FileCollection>();
-
-        // Get a pointer to the FileCollection for convenience, but it will be owned by the vector.
-        mFileCollection = fileCollection.get();
-
-        // Move it to the collection.
-        mCollections.push_back(std::move(fileCollection));
+            mOptions(options), mContext(context), mFinalTable(),
+            mFileCollection(util::make_unique<io::FileCollection>()) {
     }
 
     /**
      * Creates a SymbolTable that loads symbols from the various APKs and caches the
      * results for faster lookup.
      */
-    std::unique_ptr<ISymbolTable> createSymbolTableFromIncludePaths() {
-        AssetManagerSymbolTableBuilder builder;
+    bool loadSymbolsFromIncludePaths() {
+        std::unique_ptr<AssetManagerSymbolSource> assetSource =
+                util::make_unique<AssetManagerSymbolSource>();
         for (const std::string& path : mOptions.includePaths) {
             if (mContext->verbose()) {
                 mContext->getDiagnostics()->note(DiagMessage(path) << "loading include path");
             }
 
-            std::unique_ptr<android::AssetManager> assetManager =
-                    util::make_unique<android::AssetManager>();
-            int32_t cookie = 0;
-            if (!assetManager->addAssetPath(android::String8(path.data(), path.size()), &cookie)) {
+            // First try to load the file as a static lib.
+            std::string errorStr;
+            std::unique_ptr<ResourceTable> staticInclude = loadStaticLibrary(path, &errorStr);
+            if (staticInclude) {
+                if (!mOptions.staticLib) {
+                    // Can't include static libraries when not building a static library.
+                    mContext->getDiagnostics()->error(
+                            DiagMessage(path) << "can't include static library when building app");
+                    return false;
+                }
+
+                // If we are using --no-static-lib-packages, we need to rename the package of this
+                // table to our compilation package.
+                if (mOptions.noStaticLibPackages) {
+                    if (ResourceTablePackage* pkg = staticInclude->findPackageById(0x7f)) {
+                        pkg->name = mContext->getCompilationPackage();
+                    }
+                }
+
+                mContext->getExternalSymbols()->appendSource(
+                        util::make_unique<ResourceTableSymbolSource>(staticInclude.get()));
+
+                mStaticTableIncludes.push_back(std::move(staticInclude));
+
+            } else if (!errorStr.empty()) {
+                // We had an error with reading, so fail.
+                mContext->getDiagnostics()->error(DiagMessage(path) << errorStr);
+                return false;
+            }
+
+            if (!assetSource->addAssetPath(path)) {
                 mContext->getDiagnostics()->error(
                         DiagMessage(path) << "failed to load include path");
-                return {};
+                return false;
             }
-            builder.add(std::move(assetManager));
         }
-        return builder.build();
+
+        mContext->getExternalSymbols()->appendSource(std::move(assetSource));
+        return true;
     }
 
     Maybe<AppInfo> extractAppInfoFromManifest(xml::XmlResource* xmlRes) {
@@ -571,6 +637,35 @@
         return !error;
     }
 
+    /**
+     * Returns true if no IDs have been set, false otherwise.
+     */
+    bool verifyNoIdsSet() {
+        for (const auto& package : mFinalTable.packages) {
+            for (const auto& type : package->types) {
+                if (type->id) {
+                    mContext->getDiagnostics()->error(DiagMessage() << "type " << type->type
+                                                      << " has ID " << std::hex
+                                                      << (int) type->id.value()
+                                                      << std::dec << " assigned");
+                    return false;
+                }
+
+                for (const auto& entry : type->entries) {
+                    if (entry->id) {
+                        ResourceNameRef resName(package->name, type->type, entry->name);
+                        mContext->getDiagnostics()->error(DiagMessage() << "entry " << resName
+                                                          << " has ID " << std::hex
+                                                          << (int) entry->id.value()
+                                                          << std::dec << " assigned");
+                        return false;
+                    }
+                }
+            }
+        }
+        return true;
+    }
+
     std::unique_ptr<IArchiveWriter> makeArchiveWriter() {
         if (mOptions.outputToDirectory) {
             return createDirectoryArchiveWriter(mContext->getDiagnostics(), mOptions.outputPath);
@@ -599,6 +694,32 @@
         return false;
     }
 
+    bool flattenTableToPb(ResourceTable* table, IArchiveWriter* writer) {
+        // Create the file/zip entry.
+        if (!writer->startEntry("resources.arsc.flat", 0)) {
+            mContext->getDiagnostics()->error(DiagMessage() << "failed to open");
+            return false;
+        }
+
+        std::unique_ptr<pb::ResourceTable> pbTable = serializeTableToPb(table);
+
+        // Wrap our IArchiveWriter with an adaptor that implements the ZeroCopyOutputStream
+        // interface.
+        {
+            google::protobuf::io::CopyingOutputStreamAdaptor adaptor(writer);
+
+            if (!pbTable->SerializeToZeroCopyStream(&adaptor)) {
+                mContext->getDiagnostics()->error(DiagMessage() << "failed to write");
+                return false;
+            }
+        }
+
+        if (!writer->finishEntry()) {
+            mContext->getDiagnostics()->error(DiagMessage() << "failed to finish entry");
+            return false;
+        }
+        return true;
+    }
 
     bool writeJavaFile(ResourceTable* table, const StringPiece16& packageNameToGenerate,
                        const StringPiece16& outPackage, JavaClassGeneratorOptions javaOptions) {
@@ -674,18 +795,91 @@
         return true;
     }
 
-    bool mergeStaticLibrary(const std::string& input) {
-        // TODO(adamlesinski): Load resources from a static library APK and merge the table into
-        // TableMerger.
-        mContext->getDiagnostics()->warn(DiagMessage()
-                                        << "linking static libraries not supported yet: "
-                                        << input);
+    std::unique_ptr<ResourceTable> loadStaticLibrary(const std::string& input,
+                                                     std::string* outError) {
+        std::unique_ptr<io::ZipFileCollection> collection = io::ZipFileCollection::create(
+                input, outError);
+        if (!collection) {
+            return {};
+        }
+        return loadTablePbFromCollection(collection.get());
+    }
+
+    std::unique_ptr<ResourceTable> loadTablePbFromCollection(io::IFileCollection* collection) {
+        io::IFile* file = collection->findFile("resources.arsc.flat");
+        if (!file) {
+            return {};
+        }
+
+        std::unique_ptr<io::IData> data = file->openAsData();
+        return loadTableFromPb(file->getSource(), data->data(), data->size(),
+                               mContext->getDiagnostics());
+    }
+
+    bool mergeStaticLibrary(const std::string& input, bool override) {
+        if (mContext->verbose()) {
+            mContext->getDiagnostics()->note(DiagMessage() << "merging static library " << input);
+        }
+
+        std::string errorStr;
+        std::unique_ptr<io::ZipFileCollection> collection =
+                io::ZipFileCollection::create(input, &errorStr);
+        if (!collection) {
+            mContext->getDiagnostics()->error(DiagMessage(input) << errorStr);
+            return false;
+        }
+
+        std::unique_ptr<ResourceTable> table = loadTablePbFromCollection(collection.get());
+        if (!table) {
+            mContext->getDiagnostics()->error(DiagMessage(input) << "invalid static library");
+            return false;
+        }
+
+        ResourceTablePackage* pkg = table->findPackageById(0x7f);
+        if (!pkg) {
+            mContext->getDiagnostics()->error(DiagMessage(input)
+                                              << "static library has no package");
+            return false;
+        }
+
+        bool result;
+        if (mOptions.noStaticLibPackages) {
+            // Merge all resources as if they were in the compilation package. This is the old
+            // behaviour of aapt.
+
+            // Add the package to the set of --extra-packages so we emit an R.java for each
+            // library package.
+            if (!pkg->name.empty()) {
+                mOptions.extraJavaPackages.insert(pkg->name);
+            }
+
+            pkg->name = u"";
+            if (override) {
+                result = mTableMerger->mergeOverlay(Source(input), table.get(), collection.get());
+            } else {
+                result = mTableMerger->merge(Source(input), table.get(), collection.get());
+            }
+
+        } else {
+            // This is the proper way to merge libraries, where the package name is preserved
+            // and resource names are mangled.
+            result = mTableMerger->mergeAndMangle(Source(input), pkg->name, table.get(),
+                                                  collection.get());
+        }
+
+        if (!result) {
+            return false;
+        }
+
+        // Make sure to move the collection into the set of IFileCollections.
+        mCollections.push_back(std::move(collection));
         return true;
     }
 
     bool mergeResourceTable(io::IFile* file, bool override) {
         if (mContext->verbose()) {
-            mContext->getDiagnostics()->note(DiagMessage() << "linking " << file->getSource());
+            mContext->getDiagnostics()->note(DiagMessage() << "merging resource table "
+                                             << file->getSource());
         }
 
         std::unique_ptr<io::IData> data = file->openAsData();
@@ -711,13 +905,14 @@
         return result;
     }
 
-    bool mergeCompiledFile(io::IFile* file, std::unique_ptr<ResourceFile> fileDesc, bool overlay) {
+    bool mergeCompiledFile(io::IFile* file, ResourceFile* fileDesc, bool override) {
         if (mContext->verbose()) {
-            mContext->getDiagnostics()->note(DiagMessage() << "adding " << file->getSource());
+            mContext->getDiagnostics()->note(DiagMessage() << "merging compiled file "
+                                             << file->getSource());
         }
 
         bool result = false;
-        if (overlay) {
+        if (override) {
             result = mTableMerger->mergeFileOverlay(*fileDesc, file);
         } else {
             result = mTableMerger->mergeFile(*fileDesc, file);
@@ -730,7 +925,7 @@
         // Add the exports of this file to the table.
         for (SourcedResourceName& exportedSymbol : fileDesc->exportedSymbols) {
             if (exportedSymbol.name.package.empty()) {
-                exportedSymbol.name.package = mContext->getCompilationPackage().toString();
+                exportedSymbol.name.package = mContext->getCompilationPackage();
             }
 
             ResourceNameRef resName = exportedSymbol.name;
@@ -743,11 +938,9 @@
 
             std::unique_ptr<Id> id = util::make_unique<Id>();
             id->setSource(fileDesc->source.withLine(exportedSymbol.line));
-            bool result = mFinalTable.addResourceAllowMangled(resName,
-                                                              ConfigDescription::defaultConfig(),
-                                                              std::string(),
-                                                              std::move(id),
-                                                              mContext->getDiagnostics());
+            bool result = mFinalTable.addResourceAllowMangled(
+                    resName, ConfigDescription::defaultConfig(), std::string(), std::move(id),
+                    mContext->getDiagnostics());
             if (!result) {
                 return false;
             }
@@ -756,12 +949,21 @@
     }
 
     /**
-     * Creates an io::IFileCollection from the ZIP archive and processes the files within.
+     * Takes a path to load as a ZIP file and merges the files within into the master ResourceTable.
+     * If override is true, conflicting resources are allowed to override each other, in order of
+     * last seen.
+     *
+     * An io::IFileCollection is created from the ZIP file and added to the set of
+     * io::IFileCollections that are open.
      */
     bool mergeArchive(const std::string& input, bool override) {
+        if (mContext->verbose()) {
+            mContext->getDiagnostics()->note(DiagMessage() << "merging archive " << input);
+        }
+
         std::string errorStr;
-        std::unique_ptr<io::ZipFileCollection> collection = io::ZipFileCollection::create(
-                input, &errorStr);
+        std::unique_ptr<io::ZipFileCollection> collection =
+                io::ZipFileCollection::create(input, &errorStr);
         if (!collection) {
             mContext->getDiagnostics()->error(DiagMessage(input) << errorStr);
             return false;
@@ -769,7 +971,7 @@
 
         bool error = false;
         for (auto iter = collection->iterator(); iter->hasNext(); ) {
-            if (!processFile(iter->next(), override)) {
+            if (!mergeFile(iter->next(), override)) {
                 error = true;
             }
         }
@@ -779,22 +981,45 @@
         return !error;
     }
 
-    bool processFile(const std::string& path, bool override) {
+    /**
+     * Takes a path to load and merge into the master ResourceTable. If override is true,
+     * conflicting resources are allowed to override each other, in order of last seen.
+     *
+     * If the file path ends with .flata, .jar, .jack, or .zip the file is treated as ZIP archive
+     * and the files within are merged individually.
+     *
+     * Otherwise the files is processed on its own.
+     */
+    bool mergePath(const std::string& path, bool override) {
         if (util::stringEndsWith<char>(path, ".flata") ||
                 util::stringEndsWith<char>(path, ".jar") ||
                 util::stringEndsWith<char>(path, ".jack") ||
                 util::stringEndsWith<char>(path, ".zip")) {
             return mergeArchive(path, override);
+        } else if (util::stringEndsWith<char>(path, ".apk")) {
+            return mergeStaticLibrary(path, override);
         }
 
         io::IFile* file = mFileCollection->insertFile(path);
-        return processFile(file, override);
+        return mergeFile(file, override);
     }
 
-    bool processFile(io::IFile* file, bool override) {
+    /**
+     * Takes a file to load and merge into the master ResourceTable. If override is true,
+     * conflicting resources are allowed to override each other, in order of last seen.
+     *
+     * If the file ends with .arsc.flat, then it is loaded as a ResourceTable and merged into the
+     * master ResourceTable. If the file ends with .flat, then it is treated like a compiled file
+     * and the header data is read and merged into the final ResourceTable.
+     *
+     * All other file types are ignored. This is because these files could be coming from a zip,
+     * where we could have other files like classes.dex.
+     */
+    bool mergeFile(io::IFile* file, bool override) {
         const Source& src = file->getSource();
         if (util::stringEndsWith<char>(src.path, ".arsc.flat")) {
             return mergeResourceTable(file, override);
+
         } else if (util::stringEndsWith<char>(src.path, ".flat")){
             // Try opening the file and looking for an Export header.
             std::unique_ptr<io::IData> data = file->openAsData();
@@ -806,9 +1031,8 @@
             std::unique_ptr<ResourceFile> resourceFile = loadFileExportHeader(
                     src, data->data(), data->size(), mContext->getDiagnostics());
             if (resourceFile) {
-                return mergeCompiledFile(file, std::move(resourceFile), override);
+                return mergeCompiledFile(file, resourceFile.get(), override);
             }
-
             return false;
         }
 
@@ -826,32 +1050,30 @@
         }
 
         if (Maybe<AppInfo> maybeAppInfo = extractAppInfoFromManifest(manifestXml.get())) {
-            mContext->mCompilationPackage = maybeAppInfo.value().package;
+            mContext->setCompilationPackage(maybeAppInfo.value().package);
         } else {
             mContext->getDiagnostics()->error(DiagMessage(mOptions.manifestPath)
                                              << "no package specified in <manifest> tag");
             return 1;
         }
 
-        if (!util::isJavaPackageName(mContext->mCompilationPackage)) {
+        if (!util::isJavaPackageName(mContext->getCompilationPackage())) {
             mContext->getDiagnostics()->error(DiagMessage(mOptions.manifestPath)
                                              << "invalid package name '"
-                                             << mContext->mCompilationPackage
+                                             << mContext->getCompilationPackage()
                                              << "'");
             return 1;
         }
 
-        mContext->mNameMangler = util::make_unique<NameMangler>(
-                NameManglerPolicy{ mContext->mCompilationPackage });
+        mContext->setNameManglerPolicy(NameManglerPolicy{ mContext->getCompilationPackage() });
 
-        if (mContext->mCompilationPackage == u"android") {
-            mContext->mPackageId = 0x01;
+        if (mContext->getCompilationPackage() == u"android") {
+            mContext->setPackageId(0x01);
         } else {
-            mContext->mPackageId = 0x7f;
+            mContext->setPackageId(0x7f);
         }
 
-        mContext->mSymbols = createSymbolTableFromIncludePaths();
-        if (!mContext->mSymbols) {
+        if (!loadSymbolsFromIncludePaths()) {
             return 1;
         }
 
@@ -861,20 +1083,21 @@
 
         if (mContext->verbose()) {
             mContext->getDiagnostics()->note(
-                    DiagMessage() << "linking package '" << mContext->mCompilationPackage << "' "
-                                  << "with package ID " << std::hex << (int) mContext->mPackageId);
+                    DiagMessage() << "linking package '" << mContext->getCompilationPackage()
+                                  << "' with package ID " << std::hex
+                                  << (int) mContext->getPackageId());
         }
 
 
         for (const std::string& input : inputFiles) {
-            if (!processFile(input, false)) {
+            if (!mergePath(input, false)) {
                 mContext->getDiagnostics()->error(DiagMessage() << "failed parsing input");
                 return 1;
             }
         }
 
         for (const std::string& input : mOptions.overlayFiles) {
-            if (!processFile(input, true)) {
+            if (!mergePath(input, true)) {
                 mContext->getDiagnostics()->error(DiagMessage() << "failed parsing overlays");
                 return 1;
             }
@@ -893,20 +1116,28 @@
             }
         }
 
-        {
+        if (!mOptions.staticLib) {
+            // Assign IDs if we are building a regular app.
             IdAssigner idAssigner;
             if (!idAssigner.consume(mContext, &mFinalTable)) {
                 mContext->getDiagnostics()->error(DiagMessage() << "failed assigning IDs");
                 return 1;
             }
+        } else {
+            // Static libs are merged with other apps, and ID collisions are bad, so verify that
+            // no IDs have been set.
+            if (!verifyNoIdsSet()) {
+                return 1;
+            }
         }
 
-        mContext->mNameMangler = util::make_unique<NameMangler>(NameManglerPolicy{
-                mContext->mCompilationPackage, mTableMerger->getMergedPackages() });
-        mContext->mSymbols = JoinedSymbolTableBuilder()
-                .addSymbolTable(util::make_unique<SymbolTableWrapper>(&mFinalTable))
-                .addSymbolTable(std::move(mContext->mSymbols))
-                .build();
+        // Add the names to mangle based on our source merge earlier.
+        mContext->setNameManglerPolicy(NameManglerPolicy{
+                mContext->getCompilationPackage(), mTableMerger->getMergedPackages() });
+
+        // Add our table to the symbol table.
+        mContext->getExternalSymbols()->prependSource(
+                        util::make_unique<ResourceTableSymbolSource>(&mFinalTable));
 
         {
             ReferenceLinker linker;
@@ -915,20 +1146,32 @@
                 return 1;
             }
 
-            ProductFilter productFilter(mOptions.products);
-            if (!productFilter.consume(mContext, &mFinalTable)) {
-                mContext->getDiagnostics()->error(DiagMessage() << "failed stripping products");
-                return 1;
-            }
+            if (mOptions.staticLib) {
+                if (!mOptions.products.empty()) {
+                    mContext->getDiagnostics()->warn(
+                            DiagMessage() << "can't select products when building static library");
+                }
 
-            // TODO(adamlesinski): Actually pass in split constraints and handle splits at the file
-            // level.
-            TableSplitter tableSplitter({}, mOptions.tableSplitterOptions);
-            if (!tableSplitter.verifySplitConstraints(mContext)) {
-                return 1;
-            }
+                if (mOptions.tableSplitterOptions.configFilter != nullptr ||
+                        mOptions.tableSplitterOptions.preferredDensity) {
+                    mContext->getDiagnostics()->warn(
+                            DiagMessage() << "can't strip resources when building static library");
+                }
+            } else {
+                ProductFilter productFilter(mOptions.products);
+                if (!productFilter.consume(mContext, &mFinalTable)) {
+                    mContext->getDiagnostics()->error(DiagMessage() << "failed stripping products");
+                    return 1;
+                }
 
-            tableSplitter.splitTable(&mFinalTable);
+                // TODO(adamlesinski): Actually pass in split constraints and handle splits at the file
+                // level.
+                TableSplitter tableSplitter({}, mOptions.tableSplitterOptions);
+                if (!tableSplitter.verifySplitConstraints(mContext)) {
+                    return 1;
+                }
+                tableSplitter.splitTable(&mFinalTable);
+            }
         }
 
         proguard::KeepSet proguardKeepSet;
@@ -949,7 +1192,7 @@
             // AndroidManifest.xml has no resource name, but the CallSite is built from the name
             // (aka, which package the AndroidManifest.xml is coming from).
             // So we give it a package name so it can see local resources.
-            manifestXml->file.name.package = mContext->getCompilationPackage().toString();
+            manifestXml->file.name.package = mContext->getCompilationPackage();
 
             XmlReferenceLinker manifestLinker;
             if (manifestLinker.consume(mContext, manifestXml.get())) {
@@ -986,6 +1229,7 @@
         fileFlattenerOptions.doNotCompressAnything = mOptions.doNotCompressAnything;
         fileFlattenerOptions.extensionsToNotCompress = mOptions.extensionsToNotCompress;
         fileFlattenerOptions.noAutoVersion = mOptions.noAutoVersion;
+        fileFlattenerOptions.noVersionVectors = mOptions.noVersionVectors;
         ResourceFileFlattener fileFlattener(fileFlattenerOptions, mContext, &proguardKeepSet);
 
         if (!fileFlattener.flatten(&mFinalTable, archiveWriter.get())) {
@@ -1001,9 +1245,18 @@
             }
         }
 
-        if (!flattenTable(&mFinalTable, archiveWriter.get())) {
-            mContext->getDiagnostics()->error(DiagMessage() << "failed to write resources.arsc");
-            return 1;
+        if (mOptions.staticLib) {
+            if (!flattenTableToPb(&mFinalTable, archiveWriter.get())) {
+                mContext->getDiagnostics()->error(DiagMessage()
+                                                  << "failed to write resources.arsc.flat");
+                return 1;
+            }
+        } else {
+            if (!flattenTable(&mFinalTable, archiveWriter.get())) {
+                mContext->getDiagnostics()->error(DiagMessage()
+                                                  << "failed to write resources.arsc");
+                return 1;
+            }
         }
 
         if (mOptions.generateJavaClassPath) {
@@ -1065,14 +1318,17 @@
     LinkContext* mContext;
     ResourceTable mFinalTable;
 
-    ResourceTable mLocalFileTable;
     std::unique_ptr<TableMerger> mTableMerger;
 
     // A pointer to the FileCollection representing the filesystem (not archives).
-    io::FileCollection* mFileCollection;
+    std::unique_ptr<io::FileCollection> mFileCollection;
 
     // A vector of IFileCollections. This is mainly here to keep ownership of the collections.
     std::vector<std::unique_ptr<io::IFileCollection>> mCollections;
+
+    // A vector of ResourceTables. This is here to retain ownership, so that the SymbolTable
+    // can use these.
+    std::vector<std::unique_ptr<ResourceTable>> mStaticTableIncludes;
 };
 
 int link(const std::vector<StringPiece>& args) {
@@ -1089,6 +1345,7 @@
     Maybe<std::string> productList;
     bool legacyXFlag = false;
     bool requireLocalization = false;
+    bool verbose = false;
     Flags flags = Flags()
             .requiredFlag("-o", "Output path", &options.outputPath)
             .requiredFlag("--manifest", "Path to the Android manifest to build",
@@ -1104,6 +1361,10 @@
             .optionalSwitch("--no-auto-version",
                             "Disables automatic style and layout SDK versioning",
                             &options.noAutoVersion)
+            .optionalSwitch("--no-version-vectors",
+                            "Disables automatic versioning of vector drawables. Use this only\n"
+                            "when building with vector drawable support library",
+                            &options.noVersionVectors)
             .optionalSwitch("-x", "Legacy flag that specifies to use the package identifier 0x01",
                             &legacyXFlag)
             .optionalSwitch("-z", "Require localization of strings marked 'suggested'",
@@ -1127,6 +1388,9 @@
             .optionalFlag("--version-name", "Version name to inject into the AndroidManifest.xml "
                           "if none is present", &versionName)
             .optionalSwitch("--static-lib", "Generate a static Android library", &options.staticLib)
+            .optionalSwitch("--no-static-lib-packages",
+                            "Merge all library resources under the app's package",
+                            &options.noStaticLibPackages)
             .optionalSwitch("--non-final-ids", "Generates R.java without the final modifier.\n"
                             "This is implied when --static-lib is specified.",
                             &options.generateNonFinalIds)
@@ -1148,12 +1412,16 @@
                           &renameInstrumentationTargetPackage)
             .optionalFlagList("-0", "File extensions not to compress",
                               &options.extensionsToNotCompress)
-            .optionalSwitch("-v", "Enables verbose logging", &context.mVerbose);
+            .optionalSwitch("-v", "Enables verbose logging", &verbose);
 
     if (!flags.parse("aapt2 link", args, &std::cerr)) {
         return 1;
     }
 
+    if (verbose) {
+        context.setVerbose(verbose);
+    }
+
     if (privateSymbolsPackage) {
         options.privateSymbols = util::utf8ToUtf16(privateSymbolsPackage.value());
     }
@@ -1252,6 +1520,12 @@
         options.tableSplitterOptions.preferredDensity = preferredDensityConfig.density;
     }
 
+    // Turn off auto versioning for static-libs.
+    if (options.staticLib) {
+        options.noAutoVersion = true;
+        options.noVersionVectors = true;
+    }
+
     LinkCommand cmd(&context, options);
     return cmd.run(flags.getArgs());
 }
diff --git a/tools/aapt2/link/ManifestFixer_test.cpp b/tools/aapt2/link/ManifestFixer_test.cpp
index f40fbfb..18c47df 100644
--- a/tools/aapt2/link/ManifestFixer_test.cpp
+++ b/tools/aapt2/link/ManifestFixer_test.cpp
@@ -30,7 +30,7 @@
                 .setCompilationPackage(u"android")
                 .setPackageId(0x01)
                 .setNameManglerPolicy(NameManglerPolicy{ u"android" })
-                .setSymbolTable(test::StaticSymbolTableBuilder()
+                .addSymbolSource(test::StaticSymbolSourceBuilder()
                         .addSymbol(u"@android:attr/package", ResourceId(0x01010000),
                                    test::AttributeBuilder()
                                         .setTypeMask(android::ResTable_map::TYPE_STRING)
diff --git a/tools/aapt2/link/ReferenceLinker.cpp b/tools/aapt2/link/ReferenceLinker.cpp
index ef3fe4f..66eb0df 100644
--- a/tools/aapt2/link/ReferenceLinker.cpp
+++ b/tools/aapt2/link/ReferenceLinker.cpp
@@ -14,9 +14,8 @@
  * limitations under the License.
  */
 
-#include "ReferenceLinker.h"
-
 #include "Diagnostics.h"
+#include "ReferenceLinker.h"
 #include "ResourceTable.h"
 #include "ResourceUtils.h"
 #include "ResourceValues.h"
@@ -43,45 +42,10 @@
  * NOTE: All of the entries in the ResourceTable must be assigned IDs.
  */
 class ReferenceLinkerVisitor : public ValueVisitor {
-private:
-    IAaptContext* mContext;
-    ISymbolTable* mSymbols;
-    xml::IPackageDeclStack* mPackageDecls;
-    StringPool* mStringPool;
-    CallSite* mCallSite;
-    bool mError = false;
-
-    /**
-     * Transform a RawString value into a more specific, appropriate value, based on the
-     * Attribute. If a non RawString value is passed in, this is an identity transform.
-     */
-    std::unique_ptr<Item> parseValueWithAttribute(std::unique_ptr<Item> value,
-                                                  const Attribute* attr) {
-        if (RawString* rawString = valueCast<RawString>(value.get())) {
-            std::unique_ptr<Item> transformed =
-                    ResourceUtils::parseItemForAttribute(*rawString->value, attr);
-
-            // If we could not parse as any specific type, try a basic STRING.
-            if (!transformed && (attr->typeMask & android::ResTable_map::TYPE_STRING)) {
-                util::StringBuilder stringBuilder;
-                stringBuilder.append(*rawString->value);
-                if (stringBuilder) {
-                    transformed = util::make_unique<String>(
-                            mStringPool->makeRef(stringBuilder.str()));
-                }
-            }
-
-            if (transformed) {
-                return transformed;
-            }
-        };
-        return value;
-    }
-
 public:
     using ValueVisitor::visit;
 
-    ReferenceLinkerVisitor(IAaptContext* context, ISymbolTable* symbols, StringPool* stringPool,
+    ReferenceLinkerVisitor(IAaptContext* context, SymbolTable* symbols, StringPool* stringPool,
                            xml::IPackageDeclStack* decl,CallSite* callSite) :
             mContext(context), mSymbols(symbols), mPackageDecls(decl), mStringPool(stringPool),
             mCallSite(callSite) {
@@ -114,10 +78,11 @@
                                             &transformedReference);
 
             // Find the attribute in the symbol table and check if it is visible from this callsite.
-            const ISymbolTable::Symbol* symbol = ReferenceLinker::resolveAttributeCheckVisibility(
+            const SymbolTable::Symbol* symbol = ReferenceLinker::resolveAttributeCheckVisibility(
                     transformedReference, mContext->getNameMangler(), mSymbols, mCallSite, &errStr);
             if (symbol) {
                 // Assign our style key the correct ID.
+                // The ID may not exist.
                 entry.key.id = symbol->id;
 
                 // Try to convert the value to a more specific, typed value based on the
@@ -156,6 +121,41 @@
     bool hasError() {
         return mError;
     }
+
+private:
+    IAaptContext* mContext;
+    SymbolTable* mSymbols;
+    xml::IPackageDeclStack* mPackageDecls;
+    StringPool* mStringPool;
+    CallSite* mCallSite;
+    bool mError = false;
+
+    /**
+     * Transform a RawString value into a more specific, appropriate value, based on the
+     * Attribute. If a non RawString value is passed in, this is an identity transform.
+     */
+    std::unique_ptr<Item> parseValueWithAttribute(std::unique_ptr<Item> value,
+                                                  const Attribute* attr) {
+        if (RawString* rawString = valueCast<RawString>(value.get())) {
+            std::unique_ptr<Item> transformed =
+                    ResourceUtils::parseItemForAttribute(*rawString->value, attr);
+
+            // If we could not parse as any specific type, try a basic STRING.
+            if (!transformed && (attr->typeMask & android::ResTable_map::TYPE_STRING)) {
+                util::StringBuilder stringBuilder;
+                stringBuilder.append(*rawString->value);
+                if (stringBuilder) {
+                    transformed = util::make_unique<String>(
+                            mStringPool->makeRef(stringBuilder.str()));
+                }
+            }
+
+            if (transformed) {
+                return transformed;
+            }
+        };
+        return value;
+    }
 };
 
 } // namespace
@@ -164,13 +164,13 @@
  * The symbol is visible if it is public, or if the reference to it is requesting private access
  * or if the callsite comes from the same package.
  */
-bool ReferenceLinker::isSymbolVisible(const ISymbolTable::Symbol& symbol, const Reference& ref,
+bool ReferenceLinker::isSymbolVisible(const SymbolTable::Symbol& symbol, const Reference& ref,
                                       const CallSite& callSite) {
     if (!symbol.isPublic && !ref.privateReference) {
         if (ref.name) {
             return callSite.resource.package == ref.name.value().package;
-        } else if (ref.id) {
-            return ref.id.value().packageId() == symbol.id.packageId();
+        } else if (ref.id && symbol.id) {
+            return ref.id.value().packageId() == symbol.id.value().packageId();
         } else {
             return false;
         }
@@ -178,9 +178,9 @@
     return true;
 }
 
-const ISymbolTable::Symbol* ReferenceLinker::resolveSymbol(const Reference& reference,
-                                                           NameMangler* mangler,
-                                                           ISymbolTable* symbols) {
+const SymbolTable::Symbol* ReferenceLinker::resolveSymbol(const Reference& reference,
+                                                          NameMangler* mangler,
+                                                          SymbolTable* symbols) {
     if (reference.name) {
         Maybe<ResourceName> mangled = mangler->mangleName(reference.name.value());
         return symbols->findByName(mangled ? mangled.value() : reference.name.value());
@@ -191,10 +191,10 @@
     }
 }
 
-const ISymbolTable::Symbol* ReferenceLinker::resolveSymbolCheckVisibility(
-        const Reference& reference, NameMangler* nameMangler, ISymbolTable* symbols,
+const SymbolTable::Symbol* ReferenceLinker::resolveSymbolCheckVisibility(
+        const Reference& reference, NameMangler* nameMangler, SymbolTable* symbols,
         CallSite* callSite, std::string* outError) {
-    const ISymbolTable::Symbol* symbol = resolveSymbol(reference, nameMangler, symbols);
+    const SymbolTable::Symbol* symbol = resolveSymbol(reference, nameMangler, symbols);
     if (!symbol) {
         if (outError) *outError = "not found";
         return nullptr;
@@ -207,12 +207,12 @@
     return symbol;
 }
 
-const ISymbolTable::Symbol* ReferenceLinker::resolveAttributeCheckVisibility(
-        const Reference& reference, NameMangler* nameMangler, ISymbolTable* symbols,
+const SymbolTable::Symbol* ReferenceLinker::resolveAttributeCheckVisibility(
+        const Reference& reference, NameMangler* nameMangler, SymbolTable* symbols,
         CallSite* callSite, std::string* outError) {
-    const ISymbolTable::Symbol* symbol = resolveSymbolCheckVisibility(reference, nameMangler,
-                                                                      symbols, callSite,
-                                                                      outError);
+    const SymbolTable::Symbol* symbol = resolveSymbolCheckVisibility(reference, nameMangler,
+                                                                     symbols, callSite,
+                                                                     outError);
     if (!symbol) {
         return nullptr;
     }
@@ -226,10 +226,10 @@
 
 Maybe<xml::AaptAttribute> ReferenceLinker::compileXmlAttribute(const Reference& reference,
                                                                NameMangler* nameMangler,
-                                                               ISymbolTable* symbols,
+                                                               SymbolTable* symbols,
                                                                CallSite* callSite,
                                                                std::string* outError) {
-    const ISymbolTable::Symbol* symbol = resolveSymbol(reference, nameMangler, symbols);
+    const SymbolTable::Symbol* symbol = resolveSymbol(reference, nameMangler, symbols);
     if (!symbol) {
         return {};
     }
@@ -256,7 +256,7 @@
 }
 
 bool ReferenceLinker::linkReference(Reference* reference, IAaptContext* context,
-                                    ISymbolTable* symbols, xml::IPackageDeclStack* decls,
+                                    SymbolTable* symbols, xml::IPackageDeclStack* decls,
                                     CallSite* callSite) {
     assert(reference);
     assert(reference->name || reference->id);
@@ -266,9 +266,12 @@
                                     &transformedReference);
 
     std::string errStr;
-    const ISymbolTable::Symbol* s = resolveSymbolCheckVisibility(
+    const SymbolTable::Symbol* s = resolveSymbolCheckVisibility(
             transformedReference, context->getNameMangler(), symbols, callSite, &errStr);
     if (s) {
+        // The ID may not exist. This is fine because of the possibility of building against
+        // libraries without assigned IDs.
+        // Ex: Linking against own resources when building a static library.
         reference->id = s->id;
         return true;
     }
diff --git a/tools/aapt2/link/ReferenceLinker.h b/tools/aapt2/link/ReferenceLinker.h
index a0eb00c..7993aaf 100644
--- a/tools/aapt2/link/ReferenceLinker.h
+++ b/tools/aapt2/link/ReferenceLinker.h
@@ -38,36 +38,36 @@
     /**
      * Returns true if the symbol is visible by the reference and from the callsite.
      */
-    static bool isSymbolVisible(const ISymbolTable::Symbol& symbol, const Reference& ref,
+    static bool isSymbolVisible(const SymbolTable::Symbol& symbol, const Reference& ref,
                                 const CallSite& callSite);
 
     /**
      * Performs name mangling and looks up the resource in the symbol table. Returns nullptr
      * if the symbol was not found.
      */
-    static const ISymbolTable::Symbol* resolveSymbol(const Reference& reference,
-                                                     NameMangler* mangler, ISymbolTable* symbols);
+    static const SymbolTable::Symbol* resolveSymbol(const Reference& reference,
+                                                    NameMangler* mangler, SymbolTable* symbols);
 
     /**
      * Performs name mangling and looks up the resource in the symbol table. If the symbol is
      * not visible by the reference at the callsite, nullptr is returned. outError holds
      * the error message.
      */
-    static const ISymbolTable::Symbol* resolveSymbolCheckVisibility(const Reference& reference,
-                                                                    NameMangler* nameMangler,
-                                                                    ISymbolTable* symbols,
-                                                                    CallSite* callSite,
-                                                                    std::string* outError);
+    static const SymbolTable::Symbol* resolveSymbolCheckVisibility(const Reference& reference,
+                                                                   NameMangler* nameMangler,
+                                                                   SymbolTable* symbols,
+                                                                   CallSite* callSite,
+                                                                   std::string* outError);
 
     /**
      * Same as resolveSymbolCheckVisibility(), but also makes sure the symbol is an attribute.
      * That is, the return value will have a non-null value for ISymbolTable::Symbol::attribute.
      */
-    static const ISymbolTable::Symbol* resolveAttributeCheckVisibility(const Reference& reference,
-                                                                       NameMangler* nameMangler,
-                                                                       ISymbolTable* symbols,
-                                                                       CallSite* callSite,
-                                                                       std::string* outError);
+    static const SymbolTable::Symbol* resolveAttributeCheckVisibility(const Reference& reference,
+                                                                      NameMangler* nameMangler,
+                                                                      SymbolTable* symbols,
+                                                                      CallSite* callSite,
+                                                                      std::string* outError);
 
     /**
      * Resolves the attribute reference and returns an xml::AaptAttribute if successful.
@@ -75,7 +75,7 @@
      */
     static Maybe<xml::AaptAttribute> compileXmlAttribute(const Reference& reference,
                                                          NameMangler* nameMangler,
-                                                         ISymbolTable* symbols,
+                                                         SymbolTable* symbols,
                                                          CallSite* callSite,
                                                          std::string* outError);
 
@@ -92,7 +92,7 @@
      * to the reference at the callsite, the reference is updated with an ID.
      * Returns false on failure, and an error message is logged to the IDiagnostics in the context.
      */
-    static bool linkReference(Reference* reference, IAaptContext* context, ISymbolTable* symbols,
+    static bool linkReference(Reference* reference, IAaptContext* context, SymbolTable* symbols,
                               xml::IPackageDeclStack* decls, CallSite* callSite);
 
     /**
diff --git a/tools/aapt2/link/ReferenceLinker_test.cpp b/tools/aapt2/link/ReferenceLinker_test.cpp
index 8d324fe..76b2309 100644
--- a/tools/aapt2/link/ReferenceLinker_test.cpp
+++ b/tools/aapt2/link/ReferenceLinker_test.cpp
@@ -15,12 +15,9 @@
  */
 
 #include "link/ReferenceLinker.h"
-#include "process/SymbolTable.h"
+#include "test/Test.h"
 
-#include "test/Builders.h"
-#include "test/Context.h"
-
-#include <gtest/gtest.h>
+using android::ResTable_map;
 
 namespace aapt {
 
@@ -41,12 +38,10 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test" })
-            .setSymbolTable(JoinedSymbolTableBuilder()
-                            .addSymbolTable(util::make_unique<SymbolTableWrapper>(table.get()))
-                            .addSymbolTable(test::StaticSymbolTableBuilder()
-                                    .addPublicSymbol(u"@android:string/ok", ResourceId(0x01040034))
-                                    .build())
-                            .build())
+            .addSymbolSource(util::make_unique<ResourceTableSymbolSource>(table.get()))
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addPublicSymbol(u"@android:string/ok", ResourceId(0x01040034))
+                                     .build())
             .build();
 
     ReferenceLinker linker;
@@ -91,19 +86,20 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test" })
-            .setSymbolTable(test::StaticSymbolTableBuilder()
-                    .addPublicSymbol(u"@android:style/Theme.Material", ResourceId(0x01060000))
-                    .addPublicSymbol(u"@android:attr/foo", ResourceId(0x01010001),
-                               test::AttributeBuilder()
-                                    .setTypeMask(android::ResTable_map::TYPE_COLOR)
-                                    .build())
-                    .addPublicSymbol(u"@android:attr/bar", ResourceId(0x01010002),
-                               test::AttributeBuilder()
-                                    .setTypeMask(android::ResTable_map::TYPE_FLAGS)
-                                    .addItem(u"one", 0x01)
-                                    .addItem(u"two", 0x02)
-                                    .build())
-                    .build())
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addPublicSymbol(u"@android:style/Theme.Material",
+                                                      ResourceId(0x01060000))
+                                     .addPublicSymbol(u"@android:attr/foo", ResourceId(0x01010001),
+                                                      test::AttributeBuilder()
+                                                              .setTypeMask(ResTable_map::TYPE_COLOR)
+                                                              .build())
+                                     .addPublicSymbol(u"@android:attr/bar", ResourceId(0x01010002),
+                                                      test::AttributeBuilder()
+                                                              .setTypeMask(ResTable_map::TYPE_FLAGS)
+                                                              .addItem(u"one", 0x01)
+                                                              .addItem(u"two", 0x02)
+                                                              .build())
+                                     .build())
             .build();
 
     ReferenceLinker linker;
@@ -131,11 +127,13 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test", { u"com.android.support" } })
-            .setSymbolTable(test::StaticSymbolTableBuilder()
-                    .addPublicSymbol(u"@com.app.test:attr/com.android.support$foo",
-                               ResourceId(0x7f010000), test::AttributeBuilder()
-                                        .setTypeMask(android::ResTable_map::TYPE_COLOR).build())
-                    .build())
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addPublicSymbol(u"@com.app.test:attr/com.android.support$foo",
+                                                      ResourceId(0x7f010000),
+                                                      test::AttributeBuilder()
+                                                              .setTypeMask(ResTable_map::TYPE_COLOR)
+                                                              .build())
+                                     .build())
             .build();
 
     std::unique_ptr<ResourceTable> table = test::ResourceTableBuilder()
@@ -167,12 +165,10 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test" })
-            .setSymbolTable(JoinedSymbolTableBuilder()
-                            .addSymbolTable(util::make_unique<SymbolTableWrapper>(table.get()))
-                            .addSymbolTable(test::StaticSymbolTableBuilder()
-                                    .addSymbol(u"@android:string/hidden", ResourceId(0x01040034))
-                                    .build())
-                            .build())
+            .addSymbolSource(util::make_unique<ResourceTableSymbolSource>(table.get()))
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addSymbol(u"@android:string/hidden", ResourceId(0x01040034))
+                                     .build())
             .build();
 
     ReferenceLinker linker;
@@ -190,13 +186,12 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test", { u"com.app.lib" } })
-            .setSymbolTable(JoinedSymbolTableBuilder()
-                            .addSymbolTable(util::make_unique<SymbolTableWrapper>(table.get()))
-                            .addSymbolTable(test::StaticSymbolTableBuilder()
-                                    .addSymbol(u"@com.app.test:string/com.app.lib$hidden",
-                                               ResourceId(0x7f040034))
-                                    .build())
-                            .build())
+            .addSymbolSource(util::make_unique<ResourceTableSymbolSource>(table.get()))
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addSymbol(u"@com.app.test:string/com.app.lib$hidden",
+                                                ResourceId(0x7f040034))
+                                     .build())
+
             .build();
 
     ReferenceLinker linker;
@@ -215,15 +210,14 @@
             .setCompilationPackage(u"com.app.test")
             .setPackageId(0x7f)
             .setNameManglerPolicy(NameManglerPolicy{ u"com.app.test" })
-            .setSymbolTable(JoinedSymbolTableBuilder()
-                            .addSymbolTable(util::make_unique<SymbolTableWrapper>(table.get()))
-                            .addSymbolTable(test::StaticSymbolTableBuilder()
-                                    .addSymbol(u"@android:attr/hidden", ResourceId(0x01010001),
-                                               test::AttributeBuilder()
-                                                    .setTypeMask(android::ResTable_map::TYPE_COLOR)
-                                                    .build())
-                                    .build())
-                            .build())
+            .addSymbolSource(util::make_unique<ResourceTableSymbolSource>(table.get()))
+            .addSymbolSource(test::StaticSymbolSourceBuilder()
+                                     .addSymbol(u"@android:attr/hidden", ResourceId(0x01010001),
+                                                test::AttributeBuilder()
+                                                        .setTypeMask(
+                                                                android::ResTable_map::TYPE_COLOR)
+                                                        .build())
+                                     .build())
             .build();
 
     ReferenceLinker linker;
diff --git a/tools/aapt2/link/TableMerger.cpp b/tools/aapt2/link/TableMerger.cpp
index 5f11745..7471e15 100644
--- a/tools/aapt2/link/TableMerger.cpp
+++ b/tools/aapt2/link/TableMerger.cpp
@@ -34,10 +34,21 @@
     assert(mMasterPackage && "package name or ID already taken");
 }
 
+bool TableMerger::merge(const Source& src, ResourceTable* table,
+                        io::IFileCollection* collection) {
+    return mergeImpl(src, table, collection, false /* overlay */, true /* allow new */);
+}
+
+bool TableMerger::mergeOverlay(const Source& src, ResourceTable* table,
+                               io::IFileCollection* collection) {
+    return mergeImpl(src, table, collection, true /* overlay */, mOptions.autoAddOverlay);
+}
+
 /**
  * This will merge packages with the same package name (or no package name).
  */
 bool TableMerger::mergeImpl(const Source& src, ResourceTable* table,
+                            io::IFileCollection* collection,
                             bool overlay, bool allowNew) {
     const uint8_t desiredPackageId = mContext->getPackageId();
 
@@ -51,26 +62,36 @@
         }
 
         if (package->name.empty() || mContext->getCompilationPackage() == package->name) {
+            FileMergeCallback callback;
+            if (collection) {
+                callback = [&](const ResourceNameRef& name, const ConfigDescription& config,
+                               FileReference* newFile, FileReference* oldFile) -> bool {
+                    // The old file's path points inside the APK, so we can use it as is.
+                    io::IFile* f = collection->findFile(util::utf16ToUtf8(*oldFile->path));
+                    if (!f) {
+                        mContext->getDiagnostics()->error(DiagMessage(src) << "file '"
+                                                          << *oldFile->path
+                                                          << "' not found");
+                        return false;
+                    }
+
+                    newFile->file = f;
+                    return true;
+                };
+            }
+
             // Merge here. Once the entries are merged and mangled, any references to
             // them are still valid. This is because un-mangled references are
             // mangled, then looked up at resolution time.
             // Also, when linking, we convert references with no package name to use
             // the compilation package name.
             error |= !doMerge(src, table, package.get(),
-                              false /* mangle */, overlay, allowNew, {});
+                              false /* mangle */, overlay, allowNew, callback);
         }
     }
     return !error;
 }
 
-bool TableMerger::merge(const Source& src, ResourceTable* table) {
-    return mergeImpl(src, table, false /* overlay */, true /* allow new */);
-}
-
-bool TableMerger::mergeOverlay(const Source& src, ResourceTable* table) {
-    return mergeImpl(src, table, true /* overlay */, mOptions.autoAddOverlay);
-}
-
 /**
  * This will merge and mangle resources from a static library.
  */
diff --git a/tools/aapt2/link/TableMerger.h b/tools/aapt2/link/TableMerger.h
index b3c22dd..80c2a5e 100644
--- a/tools/aapt2/link/TableMerger.h
+++ b/tools/aapt2/link/TableMerger.h
@@ -65,13 +65,17 @@
 
     /**
      * Merges resources from the same or empty package. This is for local sources.
+     * An io::IFileCollection is optional and used to find the referenced Files and process them.
      */
-    bool merge(const Source& src, ResourceTable* table);
+    bool merge(const Source& src, ResourceTable* table,
+               io::IFileCollection* collection = nullptr);
 
     /**
      * Merges resources from an overlay ResourceTable.
+     * An io::IFileCollection is optional and used to find the referenced Files and process them.
      */
-    bool mergeOverlay(const Source& src, ResourceTable* table);
+    bool mergeOverlay(const Source& src, ResourceTable* table,
+                      io::IFileCollection* collection = nullptr);
 
     /**
      * Merges resources from the given package, mangling the name. This is for static libraries.
@@ -104,7 +108,7 @@
 
     bool mergeFileImpl(const ResourceFile& fileDesc, io::IFile* file, bool overlay);
 
-    bool mergeImpl(const Source& src, ResourceTable* srcTable,
+    bool mergeImpl(const Source& src, ResourceTable* srcTable, io::IFileCollection* collection,
                    bool overlay, bool allowNew);
 
     bool doMerge(const Source& src, ResourceTable* srcTable, ResourceTablePackage* srcPackage,
diff --git a/tools/aapt2/link/XmlReferenceLinker.cpp b/tools/aapt2/link/XmlReferenceLinker.cpp
index a26d763..568bc74 100644
--- a/tools/aapt2/link/XmlReferenceLinker.cpp
+++ b/tools/aapt2/link/XmlReferenceLinker.cpp
@@ -34,17 +34,10 @@
  * as needed.
  */
 class ReferenceVisitor : public ValueVisitor {
-private:
-    IAaptContext* mContext;
-    ISymbolTable* mSymbols;
-    xml::IPackageDeclStack* mDecls;
-    CallSite* mCallSite;
-    bool mError;
-
 public:
     using ValueVisitor::visit;
 
-    ReferenceVisitor(IAaptContext* context, ISymbolTable* symbols, xml::IPackageDeclStack* decls,
+    ReferenceVisitor(IAaptContext* context, SymbolTable* symbols, xml::IPackageDeclStack* decls,
                      CallSite* callSite) :
              mContext(context), mSymbols(symbols), mDecls(decls), mCallSite(callSite),
              mError(false) {
@@ -59,25 +52,23 @@
     bool hasError() const {
         return mError;
     }
+
+private:
+    IAaptContext* mContext;
+    SymbolTable* mSymbols;
+    xml::IPackageDeclStack* mDecls;
+    CallSite* mCallSite;
+    bool mError;
 };
 
 /**
  * Visits each xml Element and compiles the attributes within.
  */
 class XmlVisitor : public xml::PackageAwareVisitor {
-private:
-    IAaptContext* mContext;
-    ISymbolTable* mSymbols;
-    Source mSource;
-    std::set<int>* mSdkLevelsFound;
-    CallSite* mCallSite;
-    ReferenceVisitor mReferenceVisitor;
-    bool mError = false;
-
 public:
     using xml::PackageAwareVisitor::visit;
 
-    XmlVisitor(IAaptContext* context, ISymbolTable* symbols, const Source& source,
+    XmlVisitor(IAaptContext* context, SymbolTable* symbols, const Source& source,
                std::set<int>* sdkLevelsFound, CallSite* callSite) :
             mContext(context), mSymbols(symbols), mSource(source), mSdkLevelsFound(sdkLevelsFound),
             mCallSite(callSite), mReferenceVisitor(context, symbols, this, callSite) {
@@ -105,10 +96,13 @@
 
                 // Convert the string value into a compiled Value if this is a valid attribute.
                 if (attr.compiledAttribute) {
-                    // Record all SDK levels from which the attributes were defined.
-                    const int sdkLevel = findAttributeSdkLevel(attr.compiledAttribute.value().id);
-                    if (sdkLevel > 1) {
-                        mSdkLevelsFound->insert(sdkLevel);
+                    if (attr.compiledAttribute.value().id) {
+                        // Record all SDK levels from which the attributes were defined.
+                        const size_t sdkLevel = findAttributeSdkLevel(
+                                attr.compiledAttribute.value().id.value());
+                        if (sdkLevel > 1) {
+                            mSdkLevelsFound->insert(sdkLevel);
+                        }
                     }
 
                     const Attribute* attribute = &attr.compiledAttribute.value().attribute;
@@ -124,6 +118,7 @@
                                                     << *attribute);
                         mError = true;
                     }
+
                 } else {
                     mContext->getDiagnostics()->error(DiagMessage(source)
                                                       << "attribute '" << package << ":"
@@ -150,6 +145,15 @@
     bool hasError() {
         return mError || mReferenceVisitor.hasError();
     }
+
+private:
+    IAaptContext* mContext;
+    SymbolTable* mSymbols;
+    Source mSource;
+    std::set<int>* mSdkLevelsFound;
+    CallSite* mCallSite;
+    ReferenceVisitor mReferenceVisitor;
+    bool mError = false;
 };
 
 } // namespace
diff --git a/tools/aapt2/link/XmlReferenceLinker_test.cpp b/tools/aapt2/link/XmlReferenceLinker_test.cpp
index 3bfaf91..af9098b 100644
--- a/tools/aapt2/link/XmlReferenceLinker_test.cpp
+++ b/tools/aapt2/link/XmlReferenceLinker_test.cpp
@@ -14,12 +14,9 @@
  * limitations under the License.
  */
 
+#include <test/Context.h>
 #include "link/Linkers.h"
-
-#include "test/Builders.h"
-#include "test/Context.h"
-
-#include <gtest/gtest.h>
+#include "test/Test.h"
 
 namespace aapt {
 
@@ -30,7 +27,7 @@
                 .setCompilationPackage(u"com.app.test")
                 .setNameManglerPolicy(
                         NameManglerPolicy{ u"com.app.test", { u"com.android.support" } })
-                .setSymbolTable(test::StaticSymbolTableBuilder()
+                .addSymbolSource(test::StaticSymbolSourceBuilder()
                         .addPublicSymbol(u"@android:attr/layout_width", ResourceId(0x01010000),
                                    test::AttributeBuilder()
                                         .setTypeMask(android::ResTable_map::TYPE_ENUM |
@@ -92,14 +89,16 @@
                                                     u"layout_width");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x01010000));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x01010000));
     ASSERT_NE(xmlAttr->compiledValue, nullptr);
     ASSERT_NE(valueCast<BinaryPrimitive>(xmlAttr->compiledValue.get()), nullptr);
 
     xmlAttr = viewEl->findAttribute(u"http://schemas.android.com/apk/res/android", u"background");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x01010001));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x01010001));
     ASSERT_NE(xmlAttr->compiledValue, nullptr);
     Reference* ref = valueCast<Reference>(xmlAttr->compiledValue.get());
     ASSERT_NE(ref, nullptr);
@@ -163,7 +162,8 @@
             u"http://schemas.android.com/apk/res/com.android.support", u"colorAccent");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x7f010001));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x7f010001));
     ASSERT_NE(valueCast<BinaryPrimitive>(xmlAttr->compiledValue.get()), nullptr);
 }
 
@@ -182,7 +182,8 @@
                                                     u"colorAccent");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x7f010000));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x7f010000));
     Reference* ref = valueCast<Reference>(xmlAttr->compiledValue.get());
     ASSERT_NE(ref, nullptr);
     AAPT_ASSERT_TRUE(ref->name);
@@ -209,7 +210,8 @@
                                                     u"attr");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x01010002));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x01010002));
     Reference* ref = valueCast<Reference>(xmlAttr->compiledValue.get());
     ASSERT_NE(ref, nullptr);
     AAPT_ASSERT_TRUE(ref->id);
@@ -223,7 +225,8 @@
     xmlAttr = viewEl->findAttribute(u"http://schemas.android.com/apk/res/com.app.test", u"attr");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x7f010002));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x7f010002));
     ref = valueCast<Reference>(xmlAttr->compiledValue.get());
     ASSERT_NE(ref, nullptr);
     AAPT_ASSERT_TRUE(ref->id);
@@ -246,7 +249,8 @@
             u"http://schemas.android.com/apk/res/com.app.test", u"attr");
     ASSERT_NE(xmlAttr, nullptr);
     AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute);
-    EXPECT_EQ(xmlAttr->compiledAttribute.value().id, ResourceId(0x7f010002));
+    AAPT_ASSERT_TRUE(xmlAttr->compiledAttribute.value().id);
+    EXPECT_EQ(xmlAttr->compiledAttribute.value().id.value(), ResourceId(0x7f010002));
     Reference* ref = valueCast<Reference>(xmlAttr->compiledValue.get());
     ASSERT_NE(ref, nullptr);
     AAPT_ASSERT_TRUE(ref->id);
diff --git a/tools/aapt2/process/IResourceTableConsumer.h b/tools/aapt2/process/IResourceTableConsumer.h
index 3a88044..9affb83 100644
--- a/tools/aapt2/process/IResourceTableConsumer.h
+++ b/tools/aapt2/process/IResourceTableConsumer.h
@@ -30,14 +30,14 @@
 namespace aapt {
 
 class ResourceTable;
-struct ISymbolTable;
+class SymbolTable;
 
 struct IAaptContext {
     virtual ~IAaptContext() = default;
 
-    virtual ISymbolTable* getExternalSymbols() = 0;
+    virtual SymbolTable* getExternalSymbols() = 0;
     virtual IDiagnostics* getDiagnostics() = 0;
-    virtual StringPiece16 getCompilationPackage() = 0;
+    virtual const std::u16string& getCompilationPackage() = 0;
     virtual uint8_t getPackageId() = 0;
     virtual NameMangler* getNameMangler() = 0;
     virtual bool verbose() = 0;
diff --git a/tools/aapt2/process/SymbolTable.cpp b/tools/aapt2/process/SymbolTable.cpp
index b6030a2..a8f9bfe 100644
--- a/tools/aapt2/process/SymbolTable.cpp
+++ b/tools/aapt2/process/SymbolTable.cpp
@@ -25,11 +25,59 @@
 
 namespace aapt {
 
-const ISymbolTable::Symbol* SymbolTableWrapper::findByName(const ResourceName& name) {
+void SymbolTable::appendSource(std::unique_ptr<ISymbolSource> source) {
+    mSources.push_back(std::move(source));
+
+    // We do not clear the cache, because sources earlier in the list take precedent.
+}
+
+void SymbolTable::prependSource(std::unique_ptr<ISymbolSource> source) {
+    mSources.insert(mSources.begin(), std::move(source));
+
+    // We must clear the cache in case we did a lookup before adding this resource.
+    mCache.clear();
+}
+
+const SymbolTable::Symbol* SymbolTable::findByName(const ResourceName& name) {
     if (const std::shared_ptr<Symbol>& s = mCache.get(name)) {
         return s.get();
     }
 
+    // We did not find it in the cache, so look through the sources.
+    for (auto& symbolSource : mSources) {
+        std::unique_ptr<Symbol> symbol = symbolSource->findByName(name);
+        if (symbol) {
+            // Take ownership of the symbol into a shared_ptr. We do this because LruCache
+            // doesn't support unique_ptr.
+            std::shared_ptr<Symbol> sharedSymbol = std::shared_ptr<Symbol>(symbol.release());
+            mCache.put(name, sharedSymbol);
+            return sharedSymbol.get();
+        }
+    }
+    return nullptr;
+}
+
+const SymbolTable::Symbol* SymbolTable::findById(ResourceId id) {
+    if (const std::shared_ptr<Symbol>& s = mIdCache.get(id)) {
+        return s.get();
+    }
+
+    // We did not find it in the cache, so look through the sources.
+    for (auto& symbolSource : mSources) {
+        std::unique_ptr<Symbol> symbol = symbolSource->findById(id);
+        if (symbol) {
+            // Take ownership of the symbol into a shared_ptr. We do this because LruCache
+            // doesn't support unique_ptr.
+            std::shared_ptr<Symbol> sharedSymbol = std::shared_ptr<Symbol>(symbol.release());
+            mIdCache.put(id, sharedSymbol);
+            return sharedSymbol.get();
+        }
+    }
+    return nullptr;
+}
+
+std::unique_ptr<SymbolTable::Symbol> ResourceTableSymbolSource::findByName(
+        const ResourceName& name) {
     Maybe<ResourceTable::SearchResult> result = mTable->findResource(name);
     if (!result) {
         if (name.type == ResourceType::kAttr) {
@@ -41,16 +89,13 @@
 
     ResourceTable::SearchResult sr = result.value();
 
-    // If no ID exists, we treat the symbol as missing. SymbolTables are used to
-    // find symbols to link.
-    if (!sr.package->id || !sr.type->id || !sr.entry->id) {
-        return {};
-    }
-
-    std::shared_ptr<Symbol> symbol = std::make_shared<Symbol>();
-    symbol->id = ResourceId(sr.package->id.value(), sr.type->id.value(), sr.entry->id.value());
+    std::unique_ptr<SymbolTable::Symbol> symbol = util::make_unique<SymbolTable::Symbol>();
     symbol->isPublic = (sr.entry->symbolStatus.state == SymbolState::kPublic);
 
+    if (sr.package->id && sr.type->id && sr.entry->id) {
+        symbol->id = ResourceId(sr.package->id.value(), sr.type->id.value(), sr.entry->id.value());
+    }
+
     if (name.type == ResourceType::kAttr || name.type == ResourceType::kAttrPrivate) {
         const ConfigDescription kDefaultConfig;
         ResourceConfigValue* configValue = sr.entry->findValue(kDefaultConfig);
@@ -63,18 +108,16 @@
             }
         }
     }
-
-    if (name.type == ResourceType::kAttrPrivate) {
-        // Masquerade this entry as kAttr.
-        mCache.put(ResourceName(name.package, ResourceType::kAttr, name.entry), symbol);
-    } else {
-        mCache.put(name, symbol);
-    }
-    return symbol.get();
+    return symbol;
 }
 
-static std::shared_ptr<ISymbolTable::Symbol> lookupAttributeInTable(const android::ResTable& table,
-                                                                    ResourceId id) {
+bool AssetManagerSymbolSource::addAssetPath(const StringPiece& path) {
+    int32_t cookie = 0;
+    return mAssets.addAssetPath(android::String8(path.data(), path.size()), &cookie);
+}
+
+static std::unique_ptr<SymbolTable::Symbol> lookupAttributeInTable(const android::ResTable& table,
+                                                                   ResourceId id) {
     // Try as a bag.
     const android::ResTable::bag_entry* entry;
     ssize_t count = table.lockBag(id.id, &entry);
@@ -84,7 +127,7 @@
     }
 
     // We found a resource.
-    std::shared_ptr<ISymbolTable::Symbol> s = std::make_shared<ISymbolTable::Symbol>();
+    std::unique_ptr<SymbolTable::Symbol> s = util::make_unique<SymbolTable::Symbol>();
     s->id = id;
 
     // Check to see if it is an attribute.
@@ -138,43 +181,36 @@
     return s;
 }
 
-const ISymbolTable::Symbol* AssetManagerSymbolTableBuilder::AssetManagerSymbolTable::findByName(
+std::unique_ptr<SymbolTable::Symbol> AssetManagerSymbolSource::findByName(
         const ResourceName& name) {
-    if (const std::shared_ptr<Symbol>& s = mCache.get(name)) {
-        return s.get();
+    const android::ResTable& table = mAssets.getResources(false);
+    StringPiece16 typeStr = toString(name.type);
+    uint32_t typeSpecFlags = 0;
+    ResourceId resId = table.identifierForName(name.entry.data(), name.entry.size(),
+                                               typeStr.data(), typeStr.size(),
+                                               name.package.data(), name.package.size(),
+                                               &typeSpecFlags);
+    if (!resId.isValid()) {
+        return {};
     }
 
-    for (const auto& asset : mAssets) {
-        const android::ResTable& table = asset->getResources(false);
-        StringPiece16 typeStr = toString(name.type);
-        uint32_t typeSpecFlags = 0;
-        ResourceId resId = table.identifierForName(name.entry.data(), name.entry.size(),
-                                                   typeStr.data(), typeStr.size(),
-                                                   name.package.data(), name.package.size(),
-                                                   &typeSpecFlags);
-        if (!resId.isValid()) {
-            continue;
-        }
-
-        std::shared_ptr<Symbol> s;
-        if (name.type == ResourceType::kAttr) {
-            s = lookupAttributeInTable(table, resId);
-        } else {
-            s = std::make_shared<Symbol>();
-            s->id = resId;
-        }
-
-        if (s) {
-            s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
-            mCache.put(name, s);
-            return s.get();
-        }
+    std::unique_ptr<SymbolTable::Symbol> s;
+    if (name.type == ResourceType::kAttr) {
+        s = lookupAttributeInTable(table, resId);
+    } else {
+        s = util::make_unique<SymbolTable::Symbol>();
+        s->id = resId;
     }
-    return nullptr;
+
+    if (s) {
+        s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
+        return s;
+    }
+    return {};
 }
 
 static Maybe<ResourceName> getResourceName(const android::ResTable& table, ResourceId id) {
-    android::ResTable::resource_name resName;
+    android::ResTable::resource_name resName = {};
     if (!table.getResourceName(id.id, true, &resName)) {
         return {};
     }
@@ -211,55 +247,27 @@
     return name;
 }
 
-const ISymbolTable::Symbol* AssetManagerSymbolTableBuilder::AssetManagerSymbolTable::findById(
-        ResourceId id) {
-    if (const std::shared_ptr<Symbol>& s = mIdCache.get(id)) {
-        return s.get();
+std::unique_ptr<SymbolTable::Symbol> AssetManagerSymbolSource::findById(ResourceId id) {
+    const android::ResTable& table = mAssets.getResources(false);
+    Maybe<ResourceName> maybeName = getResourceName(table, id);
+    if (!maybeName) {
+        return {};
     }
 
-    for (const auto& asset : mAssets) {
-        const android::ResTable& table = asset->getResources(false);
+    uint32_t typeSpecFlags = 0;
+    table.getResourceFlags(id.id, &typeSpecFlags);
 
-        Maybe<ResourceName> maybeName = getResourceName(table, id);
-        if (!maybeName) {
-            continue;
-        }
-
-        uint32_t typeSpecFlags = 0;
-        table.getResourceFlags(id.id, &typeSpecFlags);
-
-        std::shared_ptr<Symbol> s;
-        if (maybeName.value().type == ResourceType::kAttr) {
-            s = lookupAttributeInTable(table, id);
-        } else {
-            s = std::make_shared<Symbol>();
-            s->id = id;
-        }
-
-        if (s) {
-            s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
-            mIdCache.put(id, s);
-            return s.get();
-        }
+    std::unique_ptr<SymbolTable::Symbol> s;
+    if (maybeName.value().type == ResourceType::kAttr) {
+        s = lookupAttributeInTable(table, id);
+    } else {
+        s = util::make_unique<SymbolTable::Symbol>();
+        s->id = id;
     }
-    return nullptr;
-}
 
-const ISymbolTable::Symbol* JoinedSymbolTableBuilder::JoinedSymbolTable::findByName(
-        const ResourceName& name) {
-    for (auto& symbolTable : mSymbolTables) {
-        if (const Symbol* s = symbolTable->findByName(name)) {
-            return s;
-        }
-    }
-    return {};
-}
-
-const ISymbolTable::Symbol* JoinedSymbolTableBuilder::JoinedSymbolTable::findById(ResourceId id) {
-    for (auto& symbolTable : mSymbolTables) {
-        if (const Symbol* s = symbolTable->findById(id)) {
-            return s;
-        }
+    if (s) {
+        s->isPublic = (typeSpecFlags & android::ResTable_typeSpec::SPEC_PUBLIC) != 0;
+        return s;
     }
     return {};
 }
diff --git a/tools/aapt2/process/SymbolTable.h b/tools/aapt2/process/SymbolTable.h
index 22096ed..8ea1c75 100644
--- a/tools/aapt2/process/SymbolTable.h
+++ b/tools/aapt2/process/SymbolTable.h
@@ -25,37 +25,20 @@
 #include <utils/JenkinsHash.h>
 #include <utils/LruCache.h>
 
+#include <android-base/macros.h>
 #include <androidfw/AssetManager.h>
 #include <algorithm>
-#include <map>
 #include <memory>
 #include <vector>
 
 namespace aapt {
 
-struct ISymbolTable {
-    virtual ~ISymbolTable() = default;
-
-    struct Symbol {
-        ResourceId id;
-        std::unique_ptr<Attribute> attribute;
-        bool isPublic;
-    };
-
-    /**
-     * Never hold on to the result between calls to findByName or findById. The results
-     * are typically stored in a cache which may evict entries.
-     */
-    virtual const Symbol* findByName(const ResourceName& name) = 0;
-    virtual const Symbol* findById(ResourceId id) = 0;
-};
-
 inline android::hash_t hash_type(const ResourceName& name) {
     std::hash<std::u16string> strHash;
     android::hash_t hash = 0;
-    hash = android::JenkinsHashMix(hash, strHash(name.package));
+    hash = android::JenkinsHashMix(hash, (uint32_t) strHash(name.package));
     hash = android::JenkinsHashMix(hash, (uint32_t) name.type);
-    hash = android::JenkinsHashMix(hash, strHash(name.entry));
+    hash = android::JenkinsHashMix(hash, (uint32_t) strHash(name.entry));
     return hash;
 }
 
@@ -63,88 +46,87 @@
     return android::hash_type(id.id);
 }
 
-/**
- * Presents a ResourceTable as an ISymbolTable, caching results.
- * Instances of this class must outlive the encompassed ResourceTable.
- * Since symbols are cached, the ResourceTable should not change during the
- * lifetime of this SymbolTableWrapper.
- *
- * If a resource in the ResourceTable does not have a ResourceID assigned to it,
- * it is ignored.
- *
- * Lookups by ID are ignored.
- */
-class SymbolTableWrapper : public ISymbolTable {
+class ISymbolSource;
+
+class SymbolTable {
+public:
+    struct Symbol {
+        Maybe<ResourceId> id;
+        std::unique_ptr<Attribute> attribute;
+        bool isPublic;
+    };
+
+    SymbolTable() : mCache(200), mIdCache(200) {
+    }
+
+    void appendSource(std::unique_ptr<ISymbolSource> source);
+    void prependSource(std::unique_ptr<ISymbolSource> source);
+
+    /**
+     * Never hold on to the result between calls to findByName or findById. The results
+     * are typically stored in a cache which may evict entries.
+     */
+    const Symbol* findByName(const ResourceName& name);
+    const Symbol* findById(ResourceId id);
+
 private:
-    ResourceTable* mTable;
+    std::vector<std::unique_ptr<ISymbolSource>> mSources;
 
     // We use shared_ptr because unique_ptr is not supported and
     // we need automatic deletion.
     android::LruCache<ResourceName, std::shared_ptr<Symbol>> mCache;
+    android::LruCache<ResourceId, std::shared_ptr<Symbol>> mIdCache;
 
+    DISALLOW_COPY_AND_ASSIGN(SymbolTable);
+};
+
+/**
+ * An interface that a symbol source implements in order to surface symbol information
+ * to the symbol table.
+ */
+class ISymbolSource {
 public:
-    SymbolTableWrapper(ResourceTable* table) : mTable(table), mCache(200) {
+    virtual ~ISymbolSource() = default;
+
+    virtual std::unique_ptr<SymbolTable::Symbol> findByName(const ResourceName& name) = 0;
+    virtual std::unique_ptr<SymbolTable::Symbol> findById(ResourceId id) = 0;
+};
+
+/**
+ * Exposes the resources in a ResourceTable as symbols for SymbolTable.
+ * Instances of this class must outlive the encompassed ResourceTable.
+ * Lookups by ID are ignored.
+ */
+class ResourceTableSymbolSource : public ISymbolSource {
+public:
+    explicit ResourceTableSymbolSource(ResourceTable* table) : mTable(table) {
     }
 
-    const Symbol* findByName(const ResourceName& name) override;
+    std::unique_ptr<SymbolTable::Symbol> findByName(const ResourceName& name) override;
 
-    // Unsupported, all queries to ResourceTable should be done by name.
-    const Symbol* findById(ResourceId id) override {
+    std::unique_ptr<SymbolTable::Symbol> findById(ResourceId id) override {
         return {};
     }
+
+private:
+    ResourceTable* mTable;
+
+    DISALLOW_COPY_AND_ASSIGN(ResourceTableSymbolSource);
 };
 
-class AssetManagerSymbolTableBuilder {
-private:
-    struct AssetManagerSymbolTable : public ISymbolTable {
-        std::vector<std::unique_ptr<android::AssetManager>> mAssets;
-
-        // We use shared_ptr because unique_ptr is not supported and
-        // we need automatic deletion.
-        android::LruCache<ResourceName, std::shared_ptr<Symbol>> mCache;
-        android::LruCache<ResourceId, std::shared_ptr<Symbol>> mIdCache;
-
-        AssetManagerSymbolTable() : mCache(200), mIdCache(200) {
-        }
-
-        const Symbol* findByName(const ResourceName& name) override;
-        const Symbol* findById(ResourceId id) override;
-    };
-
-    std::unique_ptr<AssetManagerSymbolTable> mSymbolTable =
-            util::make_unique<AssetManagerSymbolTable>();
-
+class AssetManagerSymbolSource : public ISymbolSource {
 public:
-    AssetManagerSymbolTableBuilder& add(std::unique_ptr<android::AssetManager> assetManager) {
-        mSymbolTable->mAssets.push_back(std::move(assetManager));
-        return *this;
-    }
+    AssetManagerSymbolSource() = default;
 
-    std::unique_ptr<ISymbolTable> build() {
-        return std::move(mSymbolTable);
-    }
-};
+    bool addAssetPath(const StringPiece& path);
 
-class JoinedSymbolTableBuilder {
+    std::unique_ptr<SymbolTable::Symbol> findByName(const ResourceName& name) override;
+    std::unique_ptr<SymbolTable::Symbol> findById(ResourceId id) override;
+
 private:
-    struct JoinedSymbolTable : public ISymbolTable {
-        std::vector<std::unique_ptr<ISymbolTable>> mSymbolTables;
+    android::AssetManager mAssets;
 
-        const Symbol* findByName(const ResourceName& name) override;
-        const Symbol* findById(ResourceId id) override;
-    };
-
-    std::unique_ptr<JoinedSymbolTable> mSymbolTable = util::make_unique<JoinedSymbolTable>();
-
-public:
-    JoinedSymbolTableBuilder& addSymbolTable(std::unique_ptr<ISymbolTable> table) {
-        mSymbolTable->mSymbolTables.push_back(std::move(table));
-        return *this;
-    }
-
-    std::unique_ptr<ISymbolTable> build() {
-        return std::move(mSymbolTable);
-    }
+    DISALLOW_COPY_AND_ASSIGN(AssetManagerSymbolSource);
 };
 
 } // namespace aapt
diff --git a/tools/aapt2/process/SymbolTable_test.cpp b/tools/aapt2/process/SymbolTable_test.cpp
index 1dc3b4f..34f31be 100644
--- a/tools/aapt2/process/SymbolTable_test.cpp
+++ b/tools/aapt2/process/SymbolTable_test.cpp
@@ -15,14 +15,11 @@
  */
 
 #include "process/SymbolTable.h"
-#include "test/Builders.h"
-#include "test/Context.h"
-
-#include <gtest/gtest.h>
+#include "test/Test.h"
 
 namespace aapt {
 
-TEST(SymbolTableWrapperTest, FindSymbolsWithIds) {
+TEST(ResourceTableSymbolSourceTest, FindSymbols) {
     std::unique_ptr<ResourceTable> table = test::ResourceTableBuilder()
             .addSimple(u"@android:id/foo", ResourceId(0x01020000))
             .addSimple(u"@android:id/bar")
@@ -30,27 +27,27 @@
                       test::AttributeBuilder().build())
             .build();
 
-    SymbolTableWrapper symbolTable(table.get());
-    EXPECT_NE(symbolTable.findByName(test::parseNameOrDie(u"@android:id/foo")), nullptr);
-    EXPECT_EQ(symbolTable.findByName(test::parseNameOrDie(u"@android:id/bar")), nullptr);
+    ResourceTableSymbolSource symbolSource(table.get());
+    EXPECT_NE(nullptr, symbolSource.findByName(test::parseNameOrDie(u"@android:id/foo")));
+    EXPECT_NE(nullptr, symbolSource.findByName(test::parseNameOrDie(u"@android:id/bar")));
 
-    const ISymbolTable::Symbol* s = symbolTable.findByName(
+    std::unique_ptr<SymbolTable::Symbol> s = symbolSource.findByName(
             test::parseNameOrDie(u"@android:attr/foo"));
-    ASSERT_NE(s, nullptr);
-    EXPECT_NE(s->attribute, nullptr);
+    ASSERT_NE(nullptr, s);
+    EXPECT_NE(nullptr, s->attribute);
 }
 
-TEST(SymbolTableWrapperTest, FindPrivateAttrSymbol) {
+TEST(ResourceTableSymbolSourceTest, FindPrivateAttrSymbol) {
     std::unique_ptr<ResourceTable> table = test::ResourceTableBuilder()
             .addValue(u"@android:^attr-private/foo", ResourceId(0x01010000),
                       test::AttributeBuilder().build())
             .build();
 
-    SymbolTableWrapper symbolTable(table.get());
-    const ISymbolTable::Symbol* s = symbolTable.findByName(
+    ResourceTableSymbolSource symbolSource(table.get());
+    std::unique_ptr<SymbolTable::Symbol> s = symbolSource.findByName(
                 test::parseNameOrDie(u"@android:attr/foo"));
-    ASSERT_NE(s, nullptr);
-    EXPECT_NE(s->attribute, nullptr);
+    ASSERT_NE(nullptr, s);
+    EXPECT_NE(nullptr, s->attribute);
 }
 
 } // namespace aapt
diff --git a/tools/aapt2/proto/TableProtoDeserializer.cpp b/tools/aapt2/proto/TableProtoDeserializer.cpp
index 9856a00..86883f8 100644
--- a/tools/aapt2/proto/TableProtoDeserializer.cpp
+++ b/tools/aapt2/proto/TableProtoDeserializer.cpp
@@ -483,8 +483,13 @@
         }
 
         const size_t padding = 4 - (pbSize & 0x03);
-        mData += sizeof(uint64_t) + pbSize + padding;
-        mSize -= sizeof(uint64_t) + pbSize + padding;
+        const size_t offset = sizeof(uint64_t) + pbSize + padding;
+        if (offset > mSize) {
+            return nullptr;
+        }
+
+        mData += offset;
+        mSize -= offset;
         mPbFile = std::move(pbFile);
     }
     return mPbFile.get();
diff --git a/tools/aapt2/proto/TableProtoSerializer.cpp b/tools/aapt2/proto/TableProtoSerializer.cpp
index b3d87d8..5d1b72b 100644
--- a/tools/aapt2/proto/TableProtoSerializer.cpp
+++ b/tools/aapt2/proto/TableProtoSerializer.cpp
@@ -178,10 +178,13 @@
     void serializeReferenceToPb(const Reference& ref, pb::Reference* pbRef) {
         if (ref.id) {
             pbRef->set_id(ref.id.value().id);
-        } else if (ref.name) {
+        }
+
+        if (ref.name) {
             StringPool::Ref symbolRef = mSymbolPool->makeRef(ref.name.value().toString());
             pbRef->set_symbol_idx(static_cast<uint32_t>(symbolRef.getIndex()));
         }
+
         pbRef->set_private_(ref.privateReference);
         pbRef->set_type(serializeReferenceTypeToPb(ref.referenceType));
     }
diff --git a/tools/aapt2/proto/TableProtoSerializer_test.cpp b/tools/aapt2/proto/TableProtoSerializer_test.cpp
index 70a33f7..dd995d8 100644
--- a/tools/aapt2/proto/TableProtoSerializer_test.cpp
+++ b/tools/aapt2/proto/TableProtoSerializer_test.cpp
@@ -62,6 +62,17 @@
                                        test::buildPrimitive(android::Res_value::TYPE_INT_DEC, 321u),
                                        context->getDiagnostics()));
 
+    // Make a reference with both resource name and resource ID.
+    // The reference should point to a resource outside of this table to test that both
+    // name and id get serialized.
+    Reference expectedRef;
+    expectedRef.name = test::parseNameOrDie(u"@android:layout/main");
+    expectedRef.id = ResourceId(0x01020000);
+    ASSERT_TRUE(table->addResource(test::parseNameOrDie(u"@com.app.a:layout/abc"),
+                                   ConfigDescription::defaultConfig(), std::string(),
+                                   util::make_unique<Reference>(expectedRef),
+                                   context->getDiagnostics()));
+
     std::unique_ptr<pb::ResourceTable> pbTable = serializeTableToPb(table.get());
     ASSERT_NE(nullptr, pbTable);
 
@@ -90,6 +101,13 @@
             newTable.get(), u"@com.app.a:integer/one", test::parseConfigOrDie("land"), "tablet");
     ASSERT_NE(nullptr, prim);
     EXPECT_EQ(321u, prim->value.data);
+
+    Reference* actualRef = test::getValue<Reference>(newTable.get(), u"@com.app.a:layout/abc");
+    ASSERT_NE(nullptr, actualRef);
+    AAPT_ASSERT_TRUE(actualRef->name);
+    AAPT_ASSERT_TRUE(actualRef->id);
+    EXPECT_EQ(expectedRef.name.value(), actualRef->name.value());
+    EXPECT_EQ(expectedRef.id.value(), actualRef->id.value());
 }
 
 TEST(TableProtoSerializer, SerializeFileHeader) {
@@ -130,4 +148,27 @@
     EXPECT_EQ(test::parseNameOrDie(u"@+id/unchecked"), file->exportedSymbols[0].name);
 }
 
+TEST(TableProtoSerializer, DeserializeCorruptHeaderSafely) {
+    ResourceFile f;
+    std::unique_ptr<pb::CompiledFile> pbFile = serializeCompiledFileToPb(f);
+
+    const std::string expectedData = "1234";
+
+    std::string outputStr;
+    {
+        google::protobuf::io::StringOutputStream outStream(&outputStr);
+        CompiledFileOutputStream outFileStream(&outStream, pbFile.get());
+
+        ASSERT_TRUE(outFileStream.Write(expectedData.data(), expectedData.size()));
+        ASSERT_TRUE(outFileStream.Finish());
+    }
+
+    outputStr[0] = 0xff;
+
+    CompiledFileInputStream inFileStream(outputStr.data(), outputStr.size());
+    EXPECT_EQ(nullptr, inFileStream.CompiledFile());
+    EXPECT_EQ(nullptr, inFileStream.data());
+    EXPECT_EQ(0u, inFileStream.size());
+}
+
 } // namespace aapt
diff --git a/tools/aapt2/test/Builders.h b/tools/aapt2/test/Builders.h
index 834caf8..8c56ebc 100644
--- a/tools/aapt2/test/Builders.h
+++ b/tools/aapt2/test/Builders.h
@@ -246,7 +246,7 @@
 inline std::unique_ptr<xml::XmlResource> buildXmlDomForPackageName(IAaptContext* context,
                                                                    const StringPiece& str) {
     std::unique_ptr<xml::XmlResource> doc = buildXmlDom(str);
-    doc->file.name.package = context->getCompilationPackage().toString();
+    doc->file.name.package = context->getCompilationPackage();
     return doc;
 }
 
diff --git a/tools/aapt2/test/Context.h b/tools/aapt2/test/Context.h
index e540cd7..96752d3 100644
--- a/tools/aapt2/test/Context.h
+++ b/tools/aapt2/test/Context.h
@@ -31,33 +31,16 @@
 namespace test {
 
 class Context : public IAaptContext {
-private:
-    friend class ContextBuilder;
-
-    Context() = default;
-
-    Maybe<std::u16string> mCompilationPackage;
-    Maybe<uint8_t> mPackageId;
-    std::unique_ptr<IDiagnostics> mDiagnostics = util::make_unique<StdErrDiagnostics>();
-    std::unique_ptr<ISymbolTable> mSymbols;
-    std::unique_ptr<NameMangler> mNameMangler;
-
 public:
-    ISymbolTable* getExternalSymbols() override {
-        assert(mSymbols && "test symbols not set");
-        return mSymbols.get();
-    }
-
-    void setSymbolTable(std::unique_ptr<ISymbolTable> symbols) {
-        mSymbols = std::move(symbols);
+    SymbolTable* getExternalSymbols() override {
+        return &mSymbols;
     }
 
     IDiagnostics* getDiagnostics() override {
-        assert(mDiagnostics && "test diagnostics not set");
-        return mDiagnostics.get();
+        return &mDiagnostics;
     }
 
-    StringPiece16 getCompilationPackage() override {
+    const std::u16string& getCompilationPackage() override {
         assert(mCompilationPackage && "package name not set");
         return mCompilationPackage.value();
     }
@@ -68,13 +51,24 @@
     }
 
     NameMangler* getNameMangler() override {
-        assert(mNameMangler && "test name mangler not set");
-        return mNameMangler.get();
+        return &mNameMangler;
     }
 
     bool verbose() override {
         return false;
     }
+
+private:
+    friend class ContextBuilder;
+
+    Context() : mNameMangler({}) {
+    }
+
+    Maybe<std::u16string> mCompilationPackage;
+    Maybe<uint8_t> mPackageId;
+    StdErrDiagnostics mDiagnostics;
+    SymbolTable mSymbols;
+    NameMangler mNameMangler;
 };
 
 class ContextBuilder {
@@ -92,18 +86,13 @@
         return *this;
     }
 
-    ContextBuilder& setSymbolTable(std::unique_ptr<ISymbolTable> symbols) {
-        mContext->mSymbols = std::move(symbols);
-        return *this;
-    }
-
-    ContextBuilder& setDiagnostics(std::unique_ptr<IDiagnostics> diag) {
-        mContext->mDiagnostics = std::move(diag);
-        return *this;
-    }
-
     ContextBuilder& setNameManglerPolicy(NameManglerPolicy policy) {
-        mContext->mNameMangler = util::make_unique<NameMangler>(policy);
+        mContext->mNameMangler = NameMangler(policy);
+        return *this;
+    }
+
+    ContextBuilder& addSymbolSource(std::unique_ptr<ISymbolSource> src) {
+        mContext->getExternalSymbols()->appendSource(std::move(src));
         return *this;
     }
 
@@ -112,57 +101,72 @@
     }
 };
 
-class StaticSymbolTableBuilder {
-private:
-    struct SymbolTable : public ISymbolTable {
-        std::list<std::unique_ptr<Symbol>> mSymbols;
-        std::map<ResourceName, Symbol*> mNameMap;
-        std::map<ResourceId, Symbol*> mIdMap;
+class StaticSymbolSourceBuilder {
+public:
+    StaticSymbolSourceBuilder& addPublicSymbol(const StringPiece16& name, ResourceId id,
+                                               std::unique_ptr<Attribute> attr = {}) {
+        std::unique_ptr<SymbolTable::Symbol> symbol = util::make_unique<SymbolTable::Symbol>(
+                id, std::move(attr), true);
+        mSymbolSource->mNameMap[parseNameOrDie(name)] = symbol.get();
+        mSymbolSource->mIdMap[id] = symbol.get();
+        mSymbolSource->mSymbols.push_back(std::move(symbol));
+        return *this;
+    }
 
-        const Symbol* findByName(const ResourceName& name) override {
+    StaticSymbolSourceBuilder& addSymbol(const StringPiece16& name, ResourceId id,
+                                         std::unique_ptr<Attribute> attr = {}) {
+        std::unique_ptr<SymbolTable::Symbol> symbol = util::make_unique<SymbolTable::Symbol>(
+                id, std::move(attr), false);
+        mSymbolSource->mNameMap[parseNameOrDie(name)] = symbol.get();
+        mSymbolSource->mIdMap[id] = symbol.get();
+        mSymbolSource->mSymbols.push_back(std::move(symbol));
+        return *this;
+    }
+
+    std::unique_ptr<ISymbolSource> build() {
+        return std::move(mSymbolSource);
+    }
+
+private:
+    class StaticSymbolSource : public ISymbolSource {
+    public:
+        StaticSymbolSource() = default;
+
+        std::unique_ptr<SymbolTable::Symbol> findByName(const ResourceName& name) override {
             auto iter = mNameMap.find(name);
             if (iter != mNameMap.end()) {
-                return iter->second;
+                return cloneSymbol(iter->second);
             }
             return nullptr;
         }
 
-        const Symbol* findById(ResourceId id) override {
+        std::unique_ptr<SymbolTable::Symbol> findById(ResourceId id) override {
             auto iter = mIdMap.find(id);
             if (iter != mIdMap.end()) {
-                return iter->second;
+                return cloneSymbol(iter->second);
             }
             return nullptr;
         }
+
+        std::list<std::unique_ptr<SymbolTable::Symbol>> mSymbols;
+        std::map<ResourceName, SymbolTable::Symbol*> mNameMap;
+        std::map<ResourceId, SymbolTable::Symbol*> mIdMap;
+
+    private:
+        std::unique_ptr<SymbolTable::Symbol> cloneSymbol(SymbolTable::Symbol* sym) {
+            std::unique_ptr<SymbolTable::Symbol> clone = util::make_unique<SymbolTable::Symbol>();
+            clone->id = sym->id;
+            if (sym->attribute) {
+                clone->attribute = std::unique_ptr<Attribute>(sym->attribute->clone(nullptr));
+            }
+            clone->isPublic = sym->isPublic;
+            return clone;
+        }
+
+        DISALLOW_COPY_AND_ASSIGN(StaticSymbolSource);
     };
 
-    std::unique_ptr<SymbolTable> mSymbolTable = util::make_unique<SymbolTable>();
-
-public:
-    StaticSymbolTableBuilder& addPublicSymbol(const StringPiece16& name, ResourceId id,
-                                              std::unique_ptr<Attribute> attr = {}) {
-        std::unique_ptr<ISymbolTable::Symbol> symbol = util::make_unique<ISymbolTable::Symbol>(
-                id, std::move(attr));
-        symbol->isPublic = true;
-        mSymbolTable->mNameMap[parseNameOrDie(name)] = symbol.get();
-        mSymbolTable->mIdMap[id] = symbol.get();
-        mSymbolTable->mSymbols.push_back(std::move(symbol));
-        return *this;
-    }
-
-    StaticSymbolTableBuilder& addSymbol(const StringPiece16& name, ResourceId id,
-                                        std::unique_ptr<Attribute> attr = {}) {
-        std::unique_ptr<ISymbolTable::Symbol> symbol = util::make_unique<ISymbolTable::Symbol>(
-                id, std::move(attr));
-        mSymbolTable->mNameMap[parseNameOrDie(name)] = symbol.get();
-        mSymbolTable->mIdMap[id] = symbol.get();
-        mSymbolTable->mSymbols.push_back(std::move(symbol));
-        return *this;
-    }
-
-    std::unique_ptr<ISymbolTable> build() {
-        return std::move(mSymbolTable);
-    }
+    std::unique_ptr<StaticSymbolSource> mSymbolSource = util::make_unique<StaticSymbolSource>();
 };
 
 } // namespace test
diff --git a/tools/aapt2/test/Test.h b/tools/aapt2/test/Test.h
new file mode 100644
index 0000000..d4845cf
--- /dev/null
+++ b/tools/aapt2/test/Test.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAPT_TEST_TEST_H
+#define AAPT_TEST_TEST_H
+
+#include "test/Builders.h"
+#include "test/Common.h"
+#include "test/Context.h"
+
+#include <gtest/gtest.h>
+
+namespace aapt {
+namespace test {
+
+} // namespace test
+} // namespace aapt
+
+#endif // AAPT_TEST_TEST_H
diff --git a/tools/aapt2/xml/XmlDom.h b/tools/aapt2/xml/XmlDom.h
index 033b0a4d..b374d20 100644
--- a/tools/aapt2/xml/XmlDom.h
+++ b/tools/aapt2/xml/XmlDom.h
@@ -68,7 +68,7 @@
 };
 
 struct AaptAttribute {
-    ResourceId id;
+    Maybe<ResourceId> id;
     aapt::Attribute attribute;
 };
 
diff --git a/tools/layoutlib/.idea/runConfigurations/Create.xml b/tools/layoutlib/.idea/runConfigurations/Create.xml
index fb798b6..536a23f 100644
--- a/tools/layoutlib/.idea/runConfigurations/Create.xml
+++ b/tools/layoutlib/.idea/runConfigurations/Create.xml
@@ -3,7 +3,7 @@
     <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea" />
     <option name="MAIN_CLASS_NAME" value="com.android.tools.layoutlib.create.Main" />
     <option name="VM_PARAMETERS" value="-ea" />
-    <option name="PROGRAM_PARAMETERS" value="out/host/common/obj/JAVA_LIBRARIES/temp_layoutlib_intermediates/javalib.jar out/target/common/obj/JAVA_LIBRARIES/core-libart_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/icu4j-icudata-jarjar_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/icu4j-icutzdata-jarjar_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/javalib.jar" />
+    <option name="PROGRAM_PARAMETERS" value="out/host/common/obj/JAVA_LIBRARIES/temp_layoutlib_intermediates/javalib.jar out/target/common/obj/JAVA_LIBRARIES/core-libart_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/framework_intermediates/classes.jar out/host/common/obj/JAVA_LIBRARIES/icu4j-icudata-host-jarjar_intermediates/classes-jarjar.jar out/host/common/obj/JAVA_LIBRARIES/icu4j-icutzdata-host-jarjar_intermediates/classes-jarjar.jar out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/classes.jar out/target/common/obj/JAVA_LIBRARIES/ext_intermediates/javalib.jar" />
     <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$/../../../../" />
     <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="false" />
     <option name="ALTERNATIVE_JRE_PATH" value="" />
diff --git a/tools/layoutlib/bridge/src/android/content/res/BridgeTypedArray.java b/tools/layoutlib/bridge/src/android/content/res/BridgeTypedArray.java
index ae42ba6..697dfbf 100644
--- a/tools/layoutlib/bridge/src/android/content/res/BridgeTypedArray.java
+++ b/tools/layoutlib/bridge/src/android/content/res/BridgeTypedArray.java
@@ -25,14 +25,9 @@
 import com.android.internal.util.XmlUtils;
 import com.android.layoutlib.bridge.Bridge;
 import com.android.layoutlib.bridge.android.BridgeContext;
-import com.android.layoutlib.bridge.android.BridgeXmlBlockParser;
-import com.android.layoutlib.bridge.impl.ParserFactory;
 import com.android.layoutlib.bridge.impl.ResourceHelper;
 import com.android.resources.ResourceType;
 
-import org.xmlpull.v1.XmlPullParser;
-import org.xmlpull.v1.XmlPullParserException;
-
 import android.annotation.Nullable;
 import android.content.res.Resources.NotFoundException;
 import android.content.res.Resources.Theme;
@@ -42,7 +37,6 @@
 import android.view.LayoutInflater_Delegate;
 import android.view.ViewGroup.LayoutParams;
 
-import java.io.File;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Map;
@@ -306,76 +300,21 @@
     }
 
     @Override
-    public ComplexColor getComplexColor(int index) {
-        // TODO: Support GradientColor
-        return getColorStateList(index);
-    }
-
-    /**
-     * Retrieve the ColorStateList for the attribute at <var>index</var>.
-     * The value may be either a single solid color or a reference to
-     * a color or complex {@link android.content.res.ColorStateList} description.
-     *
-     * @param index Index of attribute to retrieve.
-     *
-     * @return ColorStateList for the attribute, or null if not defined.
-     */
-    @Override
     public ColorStateList getColorStateList(int index) {
         if (!hasValue(index)) {
             return null;
         }
 
-        ResourceValue resValue = mResourceData[index];
-        String value = resValue.getValue();
+        return ResourceHelper.getColorStateList(mResourceData[index], mContext);
+    }
 
-        if (value == null) {
+    @Override
+    public ComplexColor getComplexColor(int index) {
+        if (!hasValue(index)) {
             return null;
         }
 
-
-        try {
-            // Get the state list file content from callback to parse PSI file
-            XmlPullParser parser = mContext.getLayoutlibCallback().getXmlFileParser(value);
-            if (parser == null) {
-                // If used with a version of Android Studio that does not implement getXmlFileParser
-                // fall back to reading the file from disk
-                File f = new File(value);
-                if (f.isFile()) {
-                    parser = ParserFactory.create(f);
-                }
-            }
-            if (parser != null) {
-                BridgeXmlBlockParser blockParser = new BridgeXmlBlockParser(
-                        parser, mContext, resValue.isFramework());
-                try {
-                    return ColorStateList.createFromXml(mContext.getResources(), blockParser,
-                            mContext.getTheme());
-                } finally {
-                    blockParser.ensurePopped();
-                }
-            }
-        } catch (XmlPullParserException e) {
-            Bridge.getLog().error(LayoutLog.TAG_BROKEN,
-                    "Failed to configure parser for " + value, e, null);
-            return null;
-        } catch (Exception e) {
-            // this is an error and not warning since the file existence is checked before
-            // attempting to parse it.
-            Bridge.getLog().error(LayoutLog.TAG_RESOURCES_READ,
-                    "Failed to parse file " + value, e, null);
-
-            return null;
-        }
-
-        try {
-            int color = ResourceHelper.getColor(value);
-            return ColorStateList.valueOf(color);
-        } catch (NumberFormatException e) {
-            Bridge.getLog().error(LayoutLog.TAG_RESOURCES_FORMAT, e.getMessage(), e, null);
-        }
-
-        return null;
+        return ResourceHelper.getComplexColor(mResourceData[index], mContext);
     }
 
     /**
diff --git a/tools/layoutlib/bridge/src/android/content/res/ComplexColor_Accessor.java b/tools/layoutlib/bridge/src/android/content/res/ComplexColor_Accessor.java
new file mode 100644
index 0000000..09c0260
--- /dev/null
+++ b/tools/layoutlib/bridge/src/android/content/res/ComplexColor_Accessor.java
@@ -0,0 +1,46 @@
+/*
+ * 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.content.res;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.content.res.Resources.Theme;
+import android.util.AttributeSet;
+
+import java.io.IOException;
+
+/**
+ * Class that provides access to the {@link GradientColor#createFromXmlInner(Resources,
+ * XmlPullParser, AttributeSet, Theme)} and {@link ColorStateList#createFromXmlInner(Resources,
+ * XmlPullParser, AttributeSet, Theme)} methods
+ */
+public class ComplexColor_Accessor {
+    public static GradientColor createGradientColorFromXmlInner(@NonNull Resources r,
+            @NonNull XmlPullParser parser, @NonNull AttributeSet attrs, @Nullable Theme theme)
+            throws IOException, XmlPullParserException {
+        return GradientColor.createFromXmlInner(r, parser, attrs, theme);
+    }
+
+    public static ColorStateList createColorStateListFromXmlInner(@NonNull Resources r,
+            @NonNull XmlPullParser parser, @NonNull AttributeSet attrs, @Nullable Theme theme)
+            throws IOException, XmlPullParserException {
+        return ColorStateList.createFromXmlInner(r, parser, attrs, theme);
+    }
+}
diff --git a/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
index 839c182..33296e1 100644
--- a/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/Paint_Delegate.java
@@ -227,6 +227,10 @@
         mColorFilter = ColorFilter_Delegate.getDelegate(colorFilterPtr);
     }
 
+    public void setShader(long shaderPtr) {
+        mShader = Shader_Delegate.getDelegate(shaderPtr);
+    }
+
     /**
      * Returns the {@link Shader} delegate or null if none have been set
      *
diff --git a/tools/layoutlib/bridge/src/android/graphics/drawable/VectorDrawable_Delegate.java b/tools/layoutlib/bridge/src/android/graphics/drawable/VectorDrawable_Delegate.java
index eef8235..2e3e7e8 100644
--- a/tools/layoutlib/bridge/src/android/graphics/drawable/VectorDrawable_Delegate.java
+++ b/tools/layoutlib/bridge/src/android/graphics/drawable/VectorDrawable_Delegate.java
@@ -211,12 +211,16 @@
 
     @LayoutlibDelegate
     static void nUpdateFullPathFillGradient(long pathPtr, long fillGradientPtr) {
+        VFullPath_Delegate path = getDelegate(pathPtr);
 
+        path.setFillGradient(fillGradientPtr);
     }
 
     @LayoutlibDelegate
     static void nUpdateFullPathStrokeGradient(long pathPtr, long strokeGradientPtr) {
+        VFullPath_Delegate path = getDelegate(pathPtr);
 
+        path.setStrokeGradient(strokeGradientPtr);
     }
 
     @LayoutlibDelegate
@@ -540,6 +544,8 @@
         float mStrokeWidth = 0;
 
         int mFillColor = Color.TRANSPARENT;
+        long mStrokeGradient = 0;
+        long mFillGradient = 0;
         float mStrokeAlpha = 1.0f;
         float mFillAlpha = 1.0f;
         float mTrimPathStart = 0;
@@ -569,6 +575,9 @@
             mStrokeLineCap = copy.mStrokeLineCap;
             mStrokeLineJoin = copy.mStrokeLineJoin;
             mStrokeMiterlimit = copy.mStrokeMiterlimit;
+
+            mStrokeGradient = copy.mStrokeGradient;
+            mFillGradient = copy.mFillGradient;
         }
 
         private int getStrokeLineCap() {
@@ -637,7 +646,7 @@
             return mStrokeColor;
         }
 
-                private void setStrokeColor(int strokeColor) {
+        private void setStrokeColor(int strokeColor) {
             mStrokeColor = strokeColor;
         }
 
@@ -704,6 +713,14 @@
         private float getStrokeMiterlimit() {
             return mStrokeMiterlimit;
         }
+
+        private void setStrokeGradient(long gradientPtr) {
+            mStrokeGradient = gradientPtr;
+        }
+
+        private void setFillGradient(long gradientPtr) {
+            mFillGradient = gradientPtr;
+        }
     }
 
     private static class VGroup_Delegate implements VNativeObject {
@@ -1046,11 +1063,11 @@
                     final Paint fillPaint = mFillPaint;
                     fillPaint.setColor(applyAlpha(fullPath.mFillColor, fullPath.mFillAlpha));
                     Paint_Delegate fillPaintDelegate = Paint_Delegate.getDelegate(fillPaint
-                            .getNativeInstance
-                            ());
+                            .getNativeInstance());
                     // mFillPaint can not be null at this point so we will have a delegate
                     assert fillPaintDelegate != null;
                     fillPaintDelegate.setColorFilter(filterPtr);
+                    fillPaintDelegate.setShader(fullPath.mFillGradient);
                     Canvas_Delegate.native_drawPath(canvasPtr, mRenderPath.mNativePath, fillPaint
                             .getNativeInstance());
                 }
@@ -1080,6 +1097,7 @@
                     strokePaintDelegate.setColorFilter(filterPtr);
                     final float finalStrokeScale = minScale * matrixScale;
                     strokePaint.setStrokeWidth(fullPath.mStrokeWidth * finalStrokeScale);
+                    strokePaintDelegate.setShader(fullPath.mStrokeGradient);
                     Canvas_Delegate.native_drawPath(canvasPtr, mRenderPath.mNativePath, strokePaint
                             .getNativeInstance());
                 }
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
index c72eeb1..494b3d2 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/ResourceHelper.java
@@ -33,7 +33,11 @@
 import org.xmlpull.v1.XmlPullParserException;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.content.res.ColorStateList;
+import android.content.res.ComplexColor;
+import android.content.res.ComplexColor_Accessor;
+import android.content.res.GradientColor;
 import android.content.res.Resources.Theme;
 import android.graphics.Bitmap;
 import android.graphics.Bitmap_Delegate;
@@ -47,6 +51,7 @@
 
 import java.io.File;
 import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.MalformedURLException;
@@ -119,54 +124,128 @@
         throw new NumberFormatException();
     }
 
-    public static ColorStateList getColorStateList(ResourceValue resValue, BridgeContext context) {
+    /**
+     * Returns a {@link ComplexColor} from the given {@link ResourceValue}
+     *
+     * @param resValue the value containing a color value or a file path to a complex color
+     * definition
+     * @param context the current context
+     * @param theme the theme to use when resolving the complex color
+     * @param allowGradients when false, only {@link ColorStateList} will be returned. If a {@link
+     * GradientColor} is found, null will be returned.
+     */
+    @Nullable
+    private static ComplexColor getInternalComplexColor(@NonNull ResourceValue resValue,
+            @NonNull BridgeContext context, @Nullable Theme theme, boolean allowGradients) {
         String value = resValue.getValue();
-        if (value != null && !RenderResources.REFERENCE_NULL.equals(value)) {
-            // first check if the value is a file (xml most likely)
+        if (value == null || RenderResources.REFERENCE_NULL.equals(value)) {
+            return null;
+        }
+
+        // first check if the value is a file (xml most likely)
+        XmlPullParser parser = context.getLayoutlibCallback().getXmlFileParser(value);
+        if (parser == null) {
             File f = new File(value);
             if (f.isFile()) {
+                // let the framework inflate the color from the XML file, by
+                // providing an XmlPullParser
                 try {
-                    // let the framework inflate the ColorStateList from the XML file, by
-                    // providing an XmlPullParser
-                    XmlPullParser parser = ParserFactory.create(f);
-
-                    BridgeXmlBlockParser blockParser = new BridgeXmlBlockParser(
-                            parser, context, resValue.isFramework());
-                    try {
-                        return ColorStateList.createFromXml(context.getResources(), blockParser);
-                    } finally {
-                        blockParser.ensurePopped();
-                    }
-                } catch (XmlPullParserException e) {
-                    Bridge.getLog().error(LayoutLog.TAG_BROKEN,
-                            "Failed to configure parser for " + value, e, null /*data*/);
-                    // we'll return null below.
-                } catch (Exception e) {
-                    // this is an error and not warning since the file existence is
-                    // checked before attempting to parse it.
+                    parser = ParserFactory.create(f);
+                } catch (XmlPullParserException | FileNotFoundException e) {
                     Bridge.getLog().error(LayoutLog.TAG_RESOURCES_READ,
                             "Failed to parse file " + value, e, null /*data*/);
-
-                    return null;
-                }
-            } else {
-                // try to load the color state list from an int
-                try {
-                    int color = ResourceHelper.getColor(value);
-                    return ColorStateList.valueOf(color);
-                } catch (NumberFormatException e) {
-                    Bridge.getLog().error(LayoutLog.TAG_RESOURCES_FORMAT,
-                            "Failed to convert " + value + " into a ColorStateList", e,
-                            null /*data*/);
-                    return null;
                 }
             }
         }
 
+        if (parser != null) {
+            try {
+                BridgeXmlBlockParser blockParser = new BridgeXmlBlockParser(
+                        parser, context, resValue.isFramework());
+                try {
+                    // Advance the parser to the first element so we can detect if it's a
+                    // color list or a gradient color
+                    int type;
+                    //noinspection StatementWithEmptyBody
+                    while ((type = blockParser.next()) != XmlPullParser.START_TAG
+                            && type != XmlPullParser.END_DOCUMENT) {
+                        // Seek parser to start tag.
+                    }
+
+                    if (type != XmlPullParser.START_TAG) {
+                        throw new XmlPullParserException("No start tag found");
+                    }
+
+                    final String name = blockParser.getName();
+                    if (allowGradients && "gradient".equals(name)) {
+                        return ComplexColor_Accessor.createGradientColorFromXmlInner(
+                                context.getResources(),
+                                blockParser, blockParser,
+                                theme);
+                    } else if ("selector".equals(name)) {
+                        return ComplexColor_Accessor.createColorStateListFromXmlInner(
+                                context.getResources(),
+                                blockParser, blockParser,
+                                theme);
+                    }
+                } finally {
+                    blockParser.ensurePopped();
+                }
+            } catch (XmlPullParserException e) {
+                Bridge.getLog().error(LayoutLog.TAG_BROKEN,
+                        "Failed to configure parser for " + value, e, null /*data*/);
+                // we'll return null below.
+            } catch (Exception e) {
+                // this is an error and not warning since the file existence is
+                // checked before attempting to parse it.
+                Bridge.getLog().error(LayoutLog.TAG_RESOURCES_READ,
+                        "Failed to parse file " + value, e, null /*data*/);
+
+                return null;
+            }
+        } else {
+            // try to load the color state list from an int
+            try {
+                int color = getColor(value);
+                return ColorStateList.valueOf(color);
+            } catch (NumberFormatException e) {
+                Bridge.getLog().error(LayoutLog.TAG_RESOURCES_FORMAT,
+                        "Failed to convert " + value + " into a ColorStateList", e,
+                        null /*data*/);
+            }
+        }
+
         return null;
     }
 
     /**
+     * Returns a {@link ColorStateList} from the given {@link ResourceValue}
+     *
+     * @param resValue the value containing a color value or a file path to a complex color
+     * definition
+     * @param context the current context
+     */
+    @Nullable
+    public static ColorStateList getColorStateList(@NonNull ResourceValue resValue,
+            @NonNull BridgeContext context) {
+        return (ColorStateList) getInternalComplexColor(resValue, context, context.getTheme(),
+                false);
+    }
+
+    /**
+     * Returns a {@link ComplexColor} from the given {@link ResourceValue}
+     *
+     * @param resValue the value containing a color value or a file path to a complex color
+     * definition
+     * @param context the current context
+     */
+    @Nullable
+    public static ComplexColor getComplexColor(@NonNull ResourceValue resValue,
+            @NonNull BridgeContext context) {
+        return getInternalComplexColor(resValue, context, context.getTheme(), true);
+    }
+
+    /**
      * Returns a drawable from the given value.
      * @param value The value that contains a path to a 9 patch, a bitmap or a xml based drawable,
      * or an hexadecimal color
diff --git a/tools/layoutlib/bridge/tests/res/testApp/MyApplication/golden/vector_drawable.png b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/golden/vector_drawable.png
index 72b87ab..47cb042 100644
--- a/tools/layoutlib/bridge/tests/res/testApp/MyApplication/golden/vector_drawable.png
+++ b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/golden/vector_drawable.png
Binary files differ
diff --git a/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/color/gradient.xml b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/color/gradient.xml
new file mode 100644
index 0000000..fc0afa6
--- /dev/null
+++ b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/color/gradient.xml
@@ -0,0 +1,24 @@
+<!--
+  ~ 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.
+  -->
+
+
+<gradient xmlns:android="http://schemas.android.com/apk/res/android"
+          android:startX="10"
+          android:startY="10"
+          android:endX="50"
+          android:endY="50"
+          android:startColor="#ffff0000"
+          android:endColor="#ff00ff00" />
diff --git a/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/drawable/multi_path.xml b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/drawable/multi_path.xml
index ffc70dc..5c19b08 100644
--- a/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/drawable/multi_path.xml
+++ b/tools/layoutlib/bridge/tests/res/testApp/MyApplication/src/main/res/drawable/multi_path.xml
@@ -53,6 +53,16 @@
             android:trimPathStart="0.2"
             android:trimPathEnd="0.8"
         />
+
+        <!--
+            Draw a line with gradient stroke color
+        -->
+        <path
+            android:strokeWidth="1"
+            android:strokeColor="#FF00FF"
+            android:fillColor="@color/gradient"
+            android:pathData="M-20,-20 l0, 10 l10, 0 l0, -10 l-10,0 "
+        />
     </group>
 
 </vector>
\ No newline at end of file
diff --git a/wifi/java/android/net/wifi/WifiScanner.java b/wifi/java/android/net/wifi/WifiScanner.java
index 69e179d..97dd985 100644
--- a/wifi/java/android/net/wifi/WifiScanner.java
+++ b/wifi/java/android/net/wifi/WifiScanner.java
@@ -192,6 +192,11 @@
          * for a given period
          */
         public int stepCount;
+        /**
+         * Flag to indicate if the scan settings are targeted for PNO scan.
+         * {@hide}
+         */
+        public boolean isPnoScan;
 
         /** Implement the Parcelable interface {@hide} */
         public int describeContents() {
@@ -207,6 +212,7 @@
             dest.writeInt(maxScansToCache);
             dest.writeInt(maxPeriodInMs);
             dest.writeInt(stepCount);
+            dest.writeInt(isPnoScan ? 1 : 0);
 
             if (channels != null) {
                 dest.writeInt(channels.length);
@@ -234,6 +240,7 @@
                         settings.maxScansToCache = in.readInt();
                         settings.maxPeriodInMs = in.readInt();
                         settings.stepCount = in.readInt();
+                        settings.isPnoScan = in.readInt() == 1;
                         int num_channels = in.readInt();
                         settings.channels = new ChannelSpec[num_channels];
                         for (int i = 0; i < num_channels; i++) {
@@ -436,6 +443,158 @@
                 };
     }
 
+    /** {@hide} */
+    public static final String PNO_PARAMS_PNO_SETTINGS_KEY = "PnoSettings";
+    /** {@hide} */
+    public static final String PNO_PARAMS_SCAN_SETTINGS_KEY = "ScanSettings";
+    /**
+     * PNO scan configuration parameters to be sent to {@link #startPnoScan}.
+     * Note: This structure needs to be in sync with |wifi_epno_params| struct in gscan HAL API.
+     * {@hide}
+     */
+    public static class PnoSettings implements Parcelable {
+        /**
+         * Pno network to be added to the PNO scan filtering.
+         * {@hide}
+         */
+        public static class PnoNetwork {
+            /*
+             * Pno flags bitmask to be set in {@link #PnoNetwork.flags}
+             */
+            /** Whether directed scan needs to be performed (for hidden SSIDs) */
+            public static final byte FLAG_DIRECTED_SCAN = (1 << 0);
+            /** Whether PNO event shall be triggered if the network is found on A band */
+            public static final byte FLAG_A_BAND = (1 << 1);
+            /** Whether PNO event shall be triggered if the network is found on G band */
+            public static final byte FLAG_G_BAND = (1 << 2);
+            /**
+             * Whether strict matching is required
+             * If required then the firmware must store the network's SSID and not just a hash
+             */
+            public static final byte FLAG_STRICT_MATCH = (1 << 3);
+            /**
+             * If this SSID should be considered the same network as the currently connected
+             * one for scoring.
+             */
+            public static final byte FLAG_SAME_NETWORK = (1 << 4);
+
+            /*
+             * Code for matching the beacon AUTH IE - additional codes. Bitmask to be set in
+             * {@link #PnoNetwork.authBitField}
+             */
+            /** Open Network */
+            public static final byte AUTH_CODE_OPEN = (1 << 0);
+            /** WPA_PSK or WPA2PSK */
+            public static final byte AUTH_CODE_PSK = (1 << 1);
+            /** any EAPOL */
+            public static final byte AUTH_CODE_EAPOL = (1 << 2);
+
+            /** SSID of the network */
+            public String ssid;
+            /** Network ID in wpa_supplicant */
+            public int networkId;
+            /** Assigned priority for the network */
+            public int priority;
+            /** Bitmask of the FLAG_XXX */
+            public byte flags;
+            /** Bitmask of the ATUH_XXX */
+            public byte authBitField;
+
+            /**
+             * default constructor for PnoNetwork
+             */
+            public PnoNetwork(String ssid) {
+                this.ssid = ssid;
+                flags = 0;
+                authBitField = 0;
+            }
+        }
+
+        /** Connected vs Disconnected PNO flag {@hide} */
+        public boolean isConnected;
+        /** Minimum 5GHz RSSI for a BSSID to be considered */
+        public int min5GHzRssi;
+        /** Minimum 2.4GHz RSSI for a BSSID to be considered */
+        public int min24GHzRssi;
+        /** Maximum score that a network can have before bonuses */
+        public int initialScoreMax;
+        /**
+         *  Only report when there is a network's score this much higher
+         *  than the current connection.
+         */
+        public int currentConnectionBonus;
+        /** score bonus for all networks with the same network flag */
+        public int sameNetworkBonus;
+        /** score bonus for networks that are not open */
+        public int secureBonus;
+        /** 5GHz RSSI score bonus (applied to all 5GHz networks) */
+        public int band5GHzBonus;
+        /** Pno Network filter list */
+        public PnoNetwork[] networkList;
+
+        /** Implement the Parcelable interface {@hide} */
+        public int describeContents() {
+            return 0;
+        }
+
+        /** Implement the Parcelable interface {@hide} */
+        public void writeToParcel(Parcel dest, int flags) {
+            dest.writeInt(isConnected ? 1 : 0);
+            dest.writeInt(min5GHzRssi);
+            dest.writeInt(min24GHzRssi);
+            dest.writeInt(initialScoreMax);
+            dest.writeInt(currentConnectionBonus);
+            dest.writeInt(sameNetworkBonus);
+            dest.writeInt(secureBonus);
+            dest.writeInt(band5GHzBonus);
+            if (networkList != null) {
+                dest.writeInt(networkList.length);
+                for (int i = 0; i < networkList.length; i++) {
+                    dest.writeString(networkList[i].ssid);
+                    dest.writeInt(networkList[i].networkId);
+                    dest.writeInt(networkList[i].priority);
+                    dest.writeByte(networkList[i].flags);
+                    dest.writeByte(networkList[i].authBitField);
+                }
+            } else {
+                dest.writeInt(0);
+            }
+        }
+
+        /** Implement the Parcelable interface {@hide} */
+        public static final Creator<PnoSettings> CREATOR =
+                new Creator<PnoSettings>() {
+                    public PnoSettings createFromParcel(Parcel in) {
+                        PnoSettings settings = new PnoSettings();
+                        settings.isConnected = in.readInt() == 1;
+                        settings.min5GHzRssi = in.readInt();
+                        settings.min24GHzRssi = in.readInt();
+                        settings.initialScoreMax = in.readInt();
+                        settings.currentConnectionBonus = in.readInt();
+                        settings.sameNetworkBonus = in.readInt();
+                        settings.secureBonus = in.readInt();
+                        settings.band5GHzBonus = in.readInt();
+                        int numNetworks = in.readInt();
+                        settings.networkList = new PnoNetwork[numNetworks];
+                        for (int i = 0; i < numNetworks; i++) {
+                            String ssid = in.readString();
+                            PnoNetwork network = new PnoNetwork(ssid);
+                            network.networkId = in.readInt();
+                            network.priority = in.readInt();
+                            network.flags = in.readByte();
+                            network.authBitField = in.readByte();
+                            settings.networkList[i] = network;
+                        }
+                        return settings;
+                    }
+
+                    public PnoSettings[] newArray(int size) {
+                        return new PnoSettings[size];
+                    }
+                };
+
+    }
+
     /**
      * interface to get scan events on; specify this on {@link #startBackgroundScan} or
      * {@link #startScan}
@@ -456,6 +615,18 @@
         public void onFullResult(ScanResult fullScanResult);
     }
 
+    /**
+     * interface to get PNO scan events on; specify this on {@link #startDisconnectedPnoScan} and
+     * {@link #startConnectedPnoScan}.
+     * {@hide}
+     */
+    public interface PnoScanListener extends ScanListener {
+        /**
+         * Invoked when one of the PNO networks are found in scan results.
+         */
+        void onPnoNetworkFound(ScanResult[] results);
+    }
+
     /** start wifi scan in background
      * @param settings specifies various parameters for the scan; for more information look at
      * {@link ScanSettings}
@@ -521,6 +692,75 @@
         sAsyncChannel.sendMessage(CMD_STOP_SINGLE_SCAN, 0, key);
     }
 
+    private void startPnoScan(ScanSettings scanSettings, PnoSettings pnoSettings, int key) {
+        // Bundle up both the settings and send it across.
+        Bundle pnoParams = new Bundle();
+        if (pnoParams == null) return;
+        // Set the PNO scan flag.
+        scanSettings.isPnoScan = true;
+        pnoParams.putParcelable(PNO_PARAMS_SCAN_SETTINGS_KEY, scanSettings);
+        pnoParams.putParcelable(PNO_PARAMS_PNO_SETTINGS_KEY, pnoSettings);
+        sAsyncChannel.sendMessage(CMD_START_PNO_SCAN, 0, key, pnoParams);
+    }
+    /**
+     * Start wifi connected PNO scan
+     * @param scanSettings specifies various parameters for the scan; for more information look at
+     * {@link ScanSettings}
+     * @param pnoSettings specifies various parameters for PNO; for more information look at
+     * {@link PnoSettings}
+     * @param listener specifies the object to report events to. This object is also treated as a
+     *                 key for this scan, and must also be specified to cancel the scan. Multiple
+     *                 scans should also not share this object.
+     * {@hide}
+     */
+    public void startConnectedPnoScan(ScanSettings scanSettings, PnoSettings pnoSettings,
+            PnoScanListener listener) {
+        Preconditions.checkNotNull(listener, "listener cannot be null");
+        Preconditions.checkNotNull(pnoSettings, "pnoSettings cannot be null");
+        int key = addListener(listener);
+        if (key == INVALID_KEY) return;
+        validateChannel();
+        pnoSettings.isConnected = true;
+        startPnoScan(scanSettings, pnoSettings, key);
+    }
+    /**
+     * Start wifi disconnected PNO scan
+     * @param scanSettings specifies various parameters for the scan; for more information look at
+     * {@link ScanSettings}
+     * @param pnoSettings specifies various parameters for PNO; for more information look at
+     * {@link PnoSettings}
+     * @param listener specifies the object to report events to. This object is also treated as a
+     *                 key for this scan, and must also be specified to cancel the scan. Multiple
+     *                 scans should also not share this object.
+     * {@hide}
+     */
+    public void startDisconnectedPnoScan(ScanSettings scanSettings, PnoSettings pnoSettings,
+            PnoScanListener listener) {
+        Preconditions.checkNotNull(listener, "listener cannot be null");
+        Preconditions.checkNotNull(pnoSettings, "pnoSettings cannot be null");
+        int key = addListener(listener);
+        if (key == INVALID_KEY) return;
+        validateChannel();
+        pnoSettings.isConnected = false;
+        startPnoScan(scanSettings, pnoSettings, key);
+    }
+    /**
+     * Stop an ongoing wifi PNO scan
+     * @param pnoSettings specifies various parameters for PNO; for more information look at
+     * {@link PnoSettings}
+     * @param listener specifies which scan to cancel; must be same object as passed in {@link
+     *  #startPnoScan}
+     * TODO(rpius): Check if we can remove pnoSettings param in stop.
+     * {@hide}
+     */
+    public void stopPnoScan(PnoSettings pnoSettings, ScanListener listener) {
+        Preconditions.checkNotNull(listener, "listener cannot be null");
+        int key = removeListener(listener);
+        if (key == INVALID_KEY) return;
+        validateChannel();
+        sAsyncChannel.sendMessage(CMD_STOP_PNO_SCAN, 0, key, pnoSettings);
+    }
+
     /** specifies information about an access point of interest */
     public static class BssidInfo {
         /** bssid of the access point; in XX:XX:XX:XX:XX:XX format */
@@ -824,6 +1064,12 @@
     public static final int CMD_STOP_SINGLE_SCAN            = BASE + 22;
     /** @hide */
     public static final int CMD_SINGLE_SCAN_COMPLETED       = BASE + 23;
+    /** @hide */
+    public static final int CMD_START_PNO_SCAN              = BASE + 24;
+    /** @hide */
+    public static final int CMD_STOP_PNO_SCAN               = BASE + 25;
+    /** @hide */
+    public static final int CMD_PNO_NETWORK_FOUND           = BASE + 26;
 
     private Context mContext;
     private IWifiScanner mService;
@@ -1110,6 +1356,10 @@
                     if (DBG) Log.d(TAG, "removing listener for single scan");
                     removeListener(msg.arg2);
                     break;
+                case CMD_PNO_NETWORK_FOUND:
+                    ((PnoScanListener) listener).onPnoNetworkFound(
+                            ((ParcelableScanResults) msg.obj).getResults());
+                    return;
                 default:
                     if (DBG) Log.d(TAG, "Ignoring message " + msg.what);
                     return;