Merge "Apply VectorDrawable density scaling before applying theme"
diff --git a/api/current.txt b/api/current.txt
index 6208640..e17bf28 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2732,6 +2732,7 @@
     method public abstract java.lang.String getAuthTokenLabel(java.lang.String);
     method public final android.os.IBinder getIBinder();
     method public abstract android.os.Bundle hasFeatures(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String[]) throws android.accounts.NetworkErrorException;
+    method public android.os.Bundle startAddAccountSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle updateCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     field public static final java.lang.String KEY_CUSTOM_TOKEN_EXPIRY = "android.accounts.expiry";
   }
@@ -2796,6 +2797,7 @@
     method public void setAuthToken(android.accounts.Account, java.lang.String, java.lang.String);
     method public void setPassword(android.accounts.Account, java.lang.String);
     method public void setUserData(android.accounts.Account, java.lang.String, java.lang.String);
+    method public android.accounts.AccountManagerFuture<android.os.Bundle> startAddAccountSession(java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> updateCredentials(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     field public static final java.lang.String ACTION_AUTHENTICATOR_INTENT = "android.accounts.AccountAuthenticator";
     field public static final java.lang.String AUTHENTICATOR_ATTRIBUTES_NAME = "account-authenticator";
@@ -2812,6 +2814,8 @@
     field public static final java.lang.String KEY_ACCOUNT_AUTHENTICATOR_RESPONSE = "accountAuthenticatorResponse";
     field public static final java.lang.String KEY_ACCOUNT_MANAGER_RESPONSE = "accountManagerResponse";
     field public static final java.lang.String KEY_ACCOUNT_NAME = "authAccount";
+    field public static final java.lang.String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
+    field public static final java.lang.String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
     field public static final java.lang.String KEY_ACCOUNT_TYPE = "accountType";
     field public static final java.lang.String KEY_ANDROID_PACKAGE_NAME = "androidPackageName";
     field public static final java.lang.String KEY_AUTHENTICATOR_TYPES = "authenticator_types";
@@ -3773,6 +3777,8 @@
   }
 
   public class ActivityOptions {
+    method public android.graphics.Rect getLaunchBounds();
+    method public boolean hasLaunchBounds();
     method public static android.app.ActivityOptions makeBasic();
     method public static android.app.ActivityOptions makeClipRevealAnimation(android.view.View, int, int, int, int);
     method public static android.app.ActivityOptions makeCustomAnimation(android.content.Context, int, int);
@@ -3782,6 +3788,7 @@
     method public static android.app.ActivityOptions makeTaskLaunchBehind();
     method public static android.app.ActivityOptions makeThumbnailScaleUpAnimation(android.view.View, android.graphics.Bitmap, int, int);
     method public void requestUsageTimeReport(android.app.PendingIntent);
+    method public android.app.ActivityOptions setLaunchBounds(android.graphics.Rect);
     method public android.os.Bundle toBundle();
     method public void update(android.app.ActivityOptions);
     field public static final java.lang.String EXTRA_USAGE_TIME_REPORT = "android.activity.usage_time";
@@ -36238,6 +36245,7 @@
     method public boolean canResolveTextDirection();
     method public boolean canScrollHorizontally(int);
     method public boolean canScrollVertically(int);
+    method public final void cancelDrag();
     method public void cancelLongPress();
     method public final void cancelPendingInputEvents();
     method public boolean checkInputConnectionProxy(android.view.View);
diff --git a/api/system-current.txt b/api/system-current.txt
index fc11f34..d8b9b6f 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -2831,6 +2831,7 @@
     method public abstract java.lang.String getAuthTokenLabel(java.lang.String);
     method public final android.os.IBinder getIBinder();
     method public abstract android.os.Bundle hasFeatures(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String[]) throws android.accounts.NetworkErrorException;
+    method public android.os.Bundle startAddAccountSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle updateCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     field public static final java.lang.String KEY_CUSTOM_TOKEN_EXPIRY = "android.accounts.expiry";
   }
@@ -2895,6 +2896,7 @@
     method public void setAuthToken(android.accounts.Account, java.lang.String, java.lang.String);
     method public void setPassword(android.accounts.Account, java.lang.String);
     method public void setUserData(android.accounts.Account, java.lang.String, java.lang.String);
+    method public android.accounts.AccountManagerFuture<android.os.Bundle> startAddAccountSession(java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> updateCredentials(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     field public static final java.lang.String ACTION_AUTHENTICATOR_INTENT = "android.accounts.AccountAuthenticator";
     field public static final java.lang.String AUTHENTICATOR_ATTRIBUTES_NAME = "account-authenticator";
@@ -2911,6 +2913,8 @@
     field public static final java.lang.String KEY_ACCOUNT_AUTHENTICATOR_RESPONSE = "accountAuthenticatorResponse";
     field public static final java.lang.String KEY_ACCOUNT_MANAGER_RESPONSE = "accountManagerResponse";
     field public static final java.lang.String KEY_ACCOUNT_NAME = "authAccount";
+    field public static final java.lang.String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
+    field public static final java.lang.String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
     field public static final java.lang.String KEY_ACCOUNT_TYPE = "accountType";
     field public static final java.lang.String KEY_ANDROID_PACKAGE_NAME = "androidPackageName";
     field public static final java.lang.String KEY_AUTHENTICATOR_TYPES = "authenticator_types";
@@ -3882,6 +3886,8 @@
   }
 
   public class ActivityOptions {
+    method public android.graphics.Rect getLaunchBounds();
+    method public boolean hasLaunchBounds();
     method public static android.app.ActivityOptions makeBasic();
     method public static android.app.ActivityOptions makeClipRevealAnimation(android.view.View, int, int, int, int);
     method public static android.app.ActivityOptions makeCustomAnimation(android.content.Context, int, int);
@@ -3891,6 +3897,7 @@
     method public static android.app.ActivityOptions makeTaskLaunchBehind();
     method public static android.app.ActivityOptions makeThumbnailScaleUpAnimation(android.view.View, android.graphics.Bitmap, int, int);
     method public void requestUsageTimeReport(android.app.PendingIntent);
+    method public android.app.ActivityOptions setLaunchBounds(android.graphics.Rect);
     method public android.os.Bundle toBundle();
     method public void update(android.app.ActivityOptions);
     field public static final java.lang.String EXTRA_USAGE_TIME_REPORT = "android.activity.usage_time";
@@ -38559,6 +38566,7 @@
     method public boolean canResolveTextDirection();
     method public boolean canScrollHorizontally(int);
     method public boolean canScrollVertically(int);
+    method public final void cancelDrag();
     method public void cancelLongPress();
     method public final void cancelPendingInputEvents();
     method public boolean checkInputConnectionProxy(android.view.View);
diff --git a/cmds/settings/src/com/android/commands/settings/SettingsCmd.java b/cmds/settings/src/com/android/commands/settings/SettingsCmd.java
index a675769..726167e 100644
--- a/cmds/settings/src/com/android/commands/settings/SettingsCmd.java
+++ b/cmds/settings/src/com/android/commands/settings/SettingsCmd.java
@@ -291,7 +291,7 @@
         System.err.println("        settings [--user NUM] delete namespace key");
         System.err.println("        settings [--user NUM] list namespace");
         System.err.println("\n'namespace' is one of {system, secure, global}, case-insensitive");
-        System.err.println("If '--user NUM' is not given, the operations are performed on the"
+        System.err.println("If '--user NUM' is not given, the operations are performed on the "
                 + "system user.");
     }
 
diff --git a/core/java/android/accounts/AbstractAccountAuthenticator.java b/core/java/android/accounts/AbstractAccountAuthenticator.java
index 9c401c7f..185ceb4 100644
--- a/core/java/android/accounts/AbstractAccountAuthenticator.java
+++ b/core/java/android/accounts/AbstractAccountAuthenticator.java
@@ -116,6 +116,25 @@
      */
     public static final String KEY_CUSTOM_TOKEN_EXPIRY = "android.accounts.expiry";
 
+    /**
+     * Bundle key used for the {@link String} account type in session bundle.
+     * This is used in the default implementation of
+     * {@link #startAddAccountSession}. TODO: and startUpdateCredentialsSession.
+     */
+    private static final String KEY_AUTH_TOKEN_TYPE = "android.accounts.KEY_AUTH_TOKEN_TYPE";
+    /**
+     * Bundle key used for the {@link String} array of required features in
+     * session bundle. This is used in the default implementation of
+     * {@link #startAddAccountSession}. TODO: and startUpdateCredentialsSession.
+     */
+    private static final String KEY_REQUIRED_FEATURES = "android.accounts.AbstractAccountAuthenticator.KEY_REQUIRED_FEATURES";
+    /**
+     * Bundle key used for the {@link Bundle} options in session bundle. This is
+     * used in default implementation of {@link #startAddAccountSession}. TODO:
+     * and startUpdateCredentialsSession.
+     */
+    private static final String KEY_OPTIONS = "android.accounts.AbstractAccountAuthenticator.KEY_OPTIONS";
+
     private final Context mContext;
 
     public AbstractAccountAuthenticator(Context context) {
@@ -336,6 +355,36 @@
                 handleException(response, "addAccountFromCredentials", account.toString(), e);
             }
         }
+
+        @Override
+        public void startAddAccountSession(IAccountAuthenticatorResponse response,
+                String accountType, String authTokenType, String[] features, Bundle options)
+                throws RemoteException {
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG,
+                        "startAddAccountSession: accountType " + accountType
+                        + ", authTokenType " + authTokenType
+                        + ", features " + (features == null ? "[]" : Arrays.toString(features)));
+            }
+            checkBinderPermission();
+            try {
+                final Bundle result = AbstractAccountAuthenticator.this.startAddAccountSession(
+                        new AccountAuthenticatorResponse(response), accountType, authTokenType,
+                        features, options);
+                if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                    if (result != null) {
+                        result.keySet(); // force it to be unparcelled
+                    }
+                    Log.v(TAG, "startAddAccountSession: result "
+                            + AccountManager.sanitizeResult(result));
+                }
+                if (result != null) {
+                    response.onResult(result);
+                }
+            } catch (Exception e) {
+                handleException(response, "startAddAccountSession", accountType, e);
+            }
+        }
     }
 
     private void handleException(IAccountAuthenticatorResponse response, String method,
@@ -603,4 +652,52 @@
         }).start();
         return null;
     }
+
+    /**
+     * Starts the add account session to authenticate user to an account of the
+     * specified accountType.
+     *
+     * @param response to send the result back to the AccountManager, will never
+     *            be null
+     * @param accountType the type of account to authenticate with, will never
+     *            be null
+     * @param authTokenType the type of auth token to retrieve after
+     *            authenticating with the account, may be null
+     * @param requiredFeatures a String array of authenticator-specific features
+     *            that the account authenticated with must support, may be null
+     * @param options a Bundle of authenticator-specific options, may be null
+     * @return a Bundle result or null if the result is to be returned via the
+     *         response. The result will contain either:
+     *         <ul>
+     *         <li>{@link AccountManager#KEY_INTENT}, or
+     *         <li>{@link AccountManager#KEY_ACCOUNT_SESSION_BUNDLE} for adding
+     *         the account to device later, and if account is authenticated,
+     *         optional {@link AccountManager#KEY_PASSWORD} and
+     *         {@link AccountManager#KEY_ACCOUNT_STATUS_TOKEN} for checking the
+     *         status of the account, or
+     *         <li>{@link AccountManager#KEY_ERROR_CODE} and
+     *         {@link AccountManager#KEY_ERROR_MESSAGE} to indicate an error
+     *         </ul>
+     * @throws NetworkErrorException if the authenticator could not honor the
+     *             request due to a network error
+     */
+    public Bundle startAddAccountSession(final AccountAuthenticatorResponse response,
+            final String accountType, final String authTokenType, final String[] requiredFeatures,
+            final Bundle options)
+            throws NetworkErrorException {
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                Bundle sessionBundle = new Bundle();
+                sessionBundle.putString(KEY_AUTH_TOKEN_TYPE, authTokenType);
+                sessionBundle.putStringArray(KEY_REQUIRED_FEATURES, requiredFeatures);
+                sessionBundle.putBundle(KEY_OPTIONS, options);
+                Bundle result = new Bundle();
+                result.putBundle(AccountManager.KEY_ACCOUNT_SESSION_BUNDLE, sessionBundle);
+                response.onResult(result);
+            }
+
+        }).start();
+        return null;
+    }
 }
diff --git a/core/java/android/accounts/AccountManager.java b/core/java/android/accounts/AccountManager.java
index 0a7568a..42e5e2a 100644
--- a/core/java/android/accounts/AccountManager.java
+++ b/core/java/android/accounts/AccountManager.java
@@ -240,6 +240,20 @@
      */
     public static final String KEY_NOTIFY_ON_FAILURE = "notifyOnAuthFailure";
 
+    /**
+     * Bundle key used for a {@link Bundle} in result from
+     * {@link #startAddAccountSession} and friends which returns session data
+     * for installing an account later.
+     */
+    public static final String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
+
+    /**
+     * Bundle key used for the {@link String} account status token in result
+     * from {@link #startAddAccountSession} and friends which returns
+     * information about a particular account.
+     */
+    public static final String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
+
     public static final String ACTION_AUTHENTICATOR_INTENT =
             "android.accounts.AccountAuthenticator";
     public static final String AUTHENTICATOR_META_DATA_NAME =
@@ -2590,4 +2604,84 @@
             }
         }
     }
+
+    /**
+     * Asks the user to authenticate with an account of a specified type. The
+     * authenticator for this account type processes this request with the
+     * appropriate user interface. If the user does elect to authenticate with a
+     * new account, a bundle of session data for installing the account later is
+     * returned with optional account password and account status token.
+     * <p>
+     * This method may be called from any thread, but the returned
+     * {@link AccountManagerFuture} must not be used on the main thread.
+     * <p>
+     * <p>
+     * <b>NOTE:</b> The account will not be installed to the device by calling
+     * this api alone.
+     *
+     * @param accountType The type of account to add; must not be null
+     * @param authTokenType The type of auth token (see {@link #getAuthToken})
+     *            this account will need to be able to generate, null for none
+     * @param requiredFeatures The features (see {@link #hasFeatures}) this
+     *            account must have, null for none
+     * @param options Authenticator-specific options for the request, may be
+     *            null or empty
+     * @param activity The {@link Activity} context to use for launching a new
+     *            authenticator-defined sub-Activity to prompt the user to
+     *            create an account; used only to call startActivity(); if null,
+     *            the prompt will not be launched directly, but the necessary
+     *            {@link Intent} will be returned to the caller instead
+     * @param callback Callback to invoke when the request completes, null for
+     *            no callback
+     * @param handler {@link Handler} identifying the callback thread, null for
+     *            the main thread
+     * @return An {@link AccountManagerFuture} which resolves to a Bundle with
+     *         these fields if activity was specified and user was authenticated
+     *         with an account:
+     *         <ul>
+     *         <li>{@link #KEY_ACCOUNT_SESSION_BUNDLE} - encrypted Bundle for
+     *         adding the the to the device later.
+     *         <li>{@link #KEY_PASSWORD} - optional, the password or password
+     *         hash of the account.
+     *         <li>{@link #KEY_ACCOUNT_STATUS_TOKEN} - optional, token to check
+     *         status of the account
+     *         </ul>
+     *         If no activity was specified, the returned Bundle contains only
+     *         {@link #KEY_INTENT} with the {@link Intent} needed to launch the
+     *         actual account creation process. If authenticator doesn't support
+     *         this method, the returned Bundle contains only
+     *         {@link #KEY_ACCOUNT_SESSION_BUNDLE} with encrypted
+     *         {@code options} needed to add account later. If an error
+     *         occurred, {@link AccountManagerFuture#getResult()} throws:
+     *         <ul>
+     *         <li>{@link AuthenticatorException} if no authenticator was
+     *         registered for this account type or the authenticator failed to
+     *         respond
+     *         <li>{@link OperationCanceledException} if the operation was
+     *         canceled for any reason, including the user canceling the
+     *         creation process or adding accounts (of this type) has been
+     *         disabled by policy
+     *         <li>{@link IOException} if the authenticator experienced an I/O
+     *         problem creating a new account, usually because of network
+     *         trouble
+     *         </ul>
+     */
+    public AccountManagerFuture<Bundle> startAddAccountSession(final String accountType,
+            final String authTokenType, final String[] requiredFeatures, final Bundle options,
+            final Activity activity, AccountManagerCallback<Bundle> callback, Handler handler) {
+        if (accountType == null) throw new IllegalArgumentException("accountType is null");
+        final Bundle optionsIn = new Bundle();
+        if (options != null) {
+            optionsIn.putAll(options);
+        }
+        optionsIn.putString(KEY_ANDROID_PACKAGE_NAME, mContext.getPackageName());
+
+        return new AmsTask(activity, handler, callback) {
+            @Override
+            public void doWork() throws RemoteException {
+                mService.startAddAccountSession(mResponse, accountType, authTokenType,
+                        requiredFeatures, activity != null, optionsIn);
+            }
+        }.start();
+    }
 }
diff --git a/core/java/android/accounts/IAccountAuthenticator.aidl b/core/java/android/accounts/IAccountAuthenticator.aidl
index 58612da..b326070 100644
--- a/core/java/android/accounts/IAccountAuthenticator.aidl
+++ b/core/java/android/accounts/IAccountAuthenticator.aidl
@@ -83,4 +83,11 @@
      */
     void addAccountFromCredentials(in IAccountAuthenticatorResponse response, in Account account,
             in Bundle accountCredentials);
+
+    /**
+     * Starts the add account session by prompting the user for account information
+     * and return a Bundle containing data to finish the session later.
+     */
+    void startAddAccountSession(in IAccountAuthenticatorResponse response, String accountType,
+        String authTokenType, in String[] requiredFeatures, in Bundle options);
 }
diff --git a/core/java/android/accounts/IAccountManager.aidl b/core/java/android/accounts/IAccountManager.aidl
index 0d95db1..5de311e 100644
--- a/core/java/android/accounts/IAccountManager.aidl
+++ b/core/java/android/accounts/IAccountManager.aidl
@@ -83,4 +83,9 @@
     String getPreviousName(in Account account);
     boolean renameSharedAccountAsUser(in Account accountToRename, String newName, int userId);
 
+    /* Add account in two steps. */
+    void startAddAccountSession(in IAccountManagerResponse response, String accountType,
+        String authTokenType, in String[] requiredFeatures, boolean expectActivityLaunch,
+        in Bundle options);
+
 }
diff --git a/core/java/android/animation/AnimatorInflater.java b/core/java/android/animation/AnimatorInflater.java
index d8d2737..20d71a6 100644
--- a/core/java/android/animation/AnimatorInflater.java
+++ b/core/java/android/animation/AnimatorInflater.java
@@ -250,50 +250,19 @@
     /**
      * PathDataEvaluator is used to interpolate between two paths which are
      * represented in the same format but different control points' values.
-     * The path is represented as an array of PathDataNode here, which is
-     * fundamentally an array of floating point numbers.
+     * The path is represented as verbs and points for each of the verbs.
      */
-    private static class PathDataEvaluator implements TypeEvaluator<PathParser.PathDataNode[]> {
-        private PathParser.PathDataNode[] mNodeArray;
-
-        /**
-         * Create a PathParser.PathDataNode[] that does not reuse the animated value.
-         * Care must be taken when using this option because on every evaluation
-         * a new <code>PathParser.PathDataNode[]</code> will be allocated.
-         */
-        private PathDataEvaluator() {}
-
-        /**
-         * Create a PathDataEvaluator that reuses <code>nodeArray</code> for every evaluate() call.
-         * Caution must be taken to ensure that the value returned from
-         * {@link android.animation.ValueAnimator#getAnimatedValue()} is not cached, modified, or
-         * used across threads. The value will be modified on each <code>evaluate()</code> call.
-         *
-         * @param nodeArray The array to modify and return from <code>evaluate</code>.
-         */
-        public PathDataEvaluator(PathParser.PathDataNode[] nodeArray) {
-            mNodeArray = nodeArray;
-        }
+    private static class PathDataEvaluator implements TypeEvaluator<PathParser.PathData> {
+        private final PathParser.PathData mPathData = new PathParser.PathData();
 
         @Override
-        public PathParser.PathDataNode[] evaluate(float fraction,
-                PathParser.PathDataNode[] startPathData,
-                PathParser.PathDataNode[] endPathData) {
-            if (!PathParser.canMorph(startPathData, endPathData)) {
+        public PathParser.PathData evaluate(float fraction, PathParser.PathData startPathData,
+                    PathParser.PathData endPathData) {
+            if (!PathParser.interpolatePathData(mPathData, startPathData, endPathData, fraction)) {
                 throw new IllegalArgumentException("Can't interpolate between"
                         + " two incompatible pathData");
             }
-
-            if (mNodeArray == null || !PathParser.canMorph(mNodeArray, startPathData)) {
-                mNodeArray = PathParser.deepCopyNodes(startPathData);
-            }
-
-            for (int i = 0; i < startPathData.length; i++) {
-                mNodeArray[i].interpolatePathDataNode(startPathData[i],
-                        endPathData[i], fraction);
-            }
-
-            return mNodeArray;
+            return mPathData;
         }
     }
 
@@ -323,13 +292,14 @@
         if (valueType == VALUE_TYPE_PATH) {
             String fromString = styledAttributes.getString(valueFromId);
             String toString = styledAttributes.getString(valueToId);
-            PathParser.PathDataNode[] nodesFrom = PathParser.createNodesFromPathData(fromString);
-            PathParser.PathDataNode[] nodesTo = PathParser.createNodesFromPathData(toString);
+            PathParser.PathData nodesFrom = fromString == null
+                    ? null : new PathParser.PathData(fromString);
+            PathParser.PathData nodesTo = toString == null
+                    ? null : new PathParser.PathData(toString);
 
             if (nodesFrom != null || nodesTo != null) {
                 if (nodesFrom != null) {
-                    TypeEvaluator evaluator =
-                            new PathDataEvaluator(PathParser.deepCopyNodes(nodesFrom));
+                    TypeEvaluator evaluator = new PathDataEvaluator();
                     if (nodesTo != null) {
                         if (!PathParser.canMorph(nodesFrom, nodesTo)) {
                             throw new InflateException(" Can't morph from " + fromString + " to " +
@@ -342,8 +312,7 @@
                                 (Object) nodesFrom);
                     }
                 } else if (nodesTo != null) {
-                    TypeEvaluator evaluator =
-                            new PathDataEvaluator(PathParser.deepCopyNodes(nodesTo));
+                    TypeEvaluator evaluator = new PathDataEvaluator();
                     returnValue = PropertyValuesHolder.ofObject(propertyName, evaluator,
                             (Object) nodesTo);
                 }
@@ -484,23 +453,25 @@
         TypeEvaluator evaluator = null;
         String fromString = arrayAnimator.getString(R.styleable.Animator_valueFrom);
         String toString = arrayAnimator.getString(R.styleable.Animator_valueTo);
-        PathParser.PathDataNode[] nodesFrom = PathParser.createNodesFromPathData(fromString);
-        PathParser.PathDataNode[] nodesTo = PathParser.createNodesFromPathData(toString);
+        PathParser.PathData pathDataFrom = fromString == null
+                ? null : new PathParser.PathData(fromString);
+        PathParser.PathData pathDataTo = toString == null
+                ? null : new PathParser.PathData(toString);
 
-        if (nodesFrom != null) {
-            if (nodesTo != null) {
-                anim.setObjectValues(nodesFrom, nodesTo);
-                if (!PathParser.canMorph(nodesFrom, nodesTo)) {
+        if (pathDataFrom != null) {
+            if (pathDataTo != null) {
+                anim.setObjectValues(pathDataFrom, pathDataTo);
+                if (!PathParser.canMorph(pathDataFrom, pathDataTo)) {
                     throw new InflateException(arrayAnimator.getPositionDescription()
                             + " Can't morph from " + fromString + " to " + toString);
                 }
             } else {
-                anim.setObjectValues((Object)nodesFrom);
+                anim.setObjectValues((Object)pathDataFrom);
             }
-            evaluator = new PathDataEvaluator(PathParser.deepCopyNodes(nodesFrom));
-        } else if (nodesTo != null) {
-            anim.setObjectValues((Object)nodesTo);
-            evaluator = new PathDataEvaluator(PathParser.deepCopyNodes(nodesTo));
+            evaluator = new PathDataEvaluator();
+        } else if (pathDataTo != null) {
+            anim.setObjectValues((Object)pathDataTo);
+            evaluator = new PathDataEvaluator();
         }
 
         if (DBG_ANIMATOR_INFLATER && evaluator != null) {
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index 00bba2d..084319a 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -884,7 +884,7 @@
             if (mIcon != null) {
                 return mIcon;
             }
-            return loadTaskDescriptionIcon(mIconFilename);
+            return loadTaskDescriptionIcon(mIconFilename, UserHandle.myUserId());
         }
 
         /** @hide */
@@ -898,11 +898,11 @@
         }
 
         /** @hide */
-        public static Bitmap loadTaskDescriptionIcon(String iconFilename) {
+        public static Bitmap loadTaskDescriptionIcon(String iconFilename, int userId) {
             if (iconFilename != null) {
                 try {
                     return ActivityManagerNative.getDefault().
-                            getTaskDescriptionIcon(iconFilename);
+                            getTaskDescriptionIcon(iconFilename, userId);
                 } catch (RemoteException e) {
                 }
             }
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index e246e62..16cf254 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -2490,7 +2490,8 @@
         case GET_TASK_DESCRIPTION_ICON_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             String filename = data.readString();
-            Bitmap icon = getTaskDescriptionIcon(filename);
+            int userId = data.readInt();
+            Bitmap icon = getTaskDescriptionIcon(filename, userId);
             reply.writeNoException();
             if (icon == null) {
                 reply.writeInt(0);
@@ -5998,11 +5999,12 @@
     }
 
     @Override
-    public Bitmap getTaskDescriptionIcon(String filename) throws RemoteException {
+    public Bitmap getTaskDescriptionIcon(String filename, int userId) throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
         data.writeInterfaceToken(IActivityManager.descriptor);
         data.writeString(filename);
+        data.writeInt(userId);
         mRemote.transact(GET_TASK_DESCRIPTION_ICON_TRANSACTION, data, reply, 0);
         reply.readException();
         final Bitmap icon = reply.readInt() == 0 ? null : Bitmap.CREATOR.createFromParcel(reply);
diff --git a/core/java/android/app/ActivityOptions.java b/core/java/android/app/ActivityOptions.java
index 57900aa..cee1aa5 100644
--- a/core/java/android/app/ActivityOptions.java
+++ b/core/java/android/app/ActivityOptions.java
@@ -64,11 +64,13 @@
     public static final String KEY_PACKAGE_NAME = "android:activity.packageName";
 
     /**
-     * The bounds that the activity should be started in. Set to null explicitly
-     * for full screen. If the key is not found, previous bounds will be preserved.
+     * The bounds (window size) that the activity should be launched in. Set to null explicitly for
+     * full screen. If the key is not found, previous bounds will be preserved.
+     * NOTE: This value is ignored on devices that don't have
+     * {@link android.content.pm.PackageManager#FEATURE_FREEFORM_WINDOW_MANAGEMENT} enabled.
      * @hide
      */
-    public static final String KEY_BOUNDS = "android:activity.bounds";
+    public static final String KEY_LAUNCH_BOUNDS = "android:activity.launchBounds";
 
     /**
      * Type of animation that arguments specify.
@@ -193,8 +195,8 @@
     public static final int ANIM_CLIP_REVEAL = 11;
 
     private String mPackageName;
-    private boolean mHasBounds;
-    private Rect mBounds;
+    private boolean mHasLaunchBounds;
+    private Rect mLaunchBounds;
     private int mAnimationType = ANIM_NONE;
     private int mCustomEnterResId;
     private int mCustomExitResId;
@@ -705,9 +707,9 @@
         } catch (RuntimeException e) {
             Slog.w(TAG, e);
         }
-        mHasBounds = opts.containsKey(KEY_BOUNDS);
-        if (mHasBounds) {
-            mBounds = opts.getParcelable(KEY_BOUNDS);
+        mHasLaunchBounds = opts.containsKey(KEY_LAUNCH_BOUNDS);
+        if (mHasLaunchBounds) {
+            mLaunchBounds = opts.getParcelable(KEY_LAUNCH_BOUNDS);
         }
         mAnimationType = opts.getInt(KEY_ANIM_TYPE);
         switch (mAnimationType) {
@@ -766,10 +768,15 @@
         }
     }
 
-    /** @hide */
-    public ActivityOptions setBounds(Rect bounds) {
-        mHasBounds = true;
-        mBounds = bounds;
+    /**
+     * Sets the bounds (window size) that the activity should be launched in. Set to null explicitly
+     * for full screen.
+     * NOTE: This value is ignored on devices that don't have
+     * {@link android.content.pm.PackageManager#FEATURE_FREEFORM_WINDOW_MANAGEMENT} enabled.
+     */
+    public ActivityOptions setLaunchBounds(Rect launchBounds) {
+        mHasLaunchBounds = true;
+        mLaunchBounds = launchBounds;
         return this;
     }
 
@@ -778,14 +785,12 @@
         return mPackageName;
     }
 
-    /** @hide */
-    public boolean hasBounds() {
-        return mHasBounds;
+    public boolean hasLaunchBounds() {
+        return mHasLaunchBounds;
     }
 
-    /** @hide */
-    public Rect getBounds(){
-        return mBounds;
+    public Rect getLaunchBounds(){
+        return mLaunchBounds;
     }
 
     /** @hide */
@@ -997,8 +1002,8 @@
         if (mPackageName != null) {
             b.putString(KEY_PACKAGE_NAME, mPackageName);
         }
-        if (mHasBounds) {
-            b.putParcelable(KEY_BOUNDS, mBounds);
+        if (mHasLaunchBounds) {
+            b.putParcelable(KEY_LAUNCH_BOUNDS, mLaunchBounds);
         }
         b.putInt(KEY_ANIM_TYPE, mAnimationType);
         if (mUsageTimeReport != null) {
diff --git a/core/java/android/app/EnterTransitionCoordinator.java b/core/java/android/app/EnterTransitionCoordinator.java
index c0cc566..20f3495 100644
--- a/core/java/android/app/EnterTransitionCoordinator.java
+++ b/core/java/android/app/EnterTransitionCoordinator.java
@@ -575,14 +575,20 @@
         setGhostVisibility(View.INVISIBLE);
         mHasStopped = true;
         mIsCanceled = true;
+        clearState();
+        return super.cancelPendingTransitions();
+    }
+
+    @Override
+    protected void clearState() {
+        mSharedElementsBundle = null;
+        mEnterViewsTransition = null;
         mResultReceiver = null;
         if (mBackgroundAnimator != null) {
             mBackgroundAnimator.cancel();
             mBackgroundAnimator = null;
         }
-        mActivity = null;
-        clearState();
-        return super.cancelPendingTransitions();
+        super.clearState();
     }
 
     private void makeOpaque() {
diff --git a/core/java/android/app/ExitTransitionCoordinator.java b/core/java/android/app/ExitTransitionCoordinator.java
index 4b670cd..e93b40e 100644
--- a/core/java/android/app/ExitTransitionCoordinator.java
+++ b/core/java/android/app/ExitTransitionCoordinator.java
@@ -470,6 +470,11 @@
             mActivity = null;
         }
         // Clear the state so that we can't hold any references accidentally and leak memory.
+        clearState();
+    }
+
+    @Override
+    protected void clearState() {
         mHandler = null;
         mSharedElementBundle = null;
         if (mBackgroundAnimator != null) {
@@ -477,7 +482,7 @@
             mBackgroundAnimator = null;
         }
         mExitSharedElementBundle = null;
-        clearState();
+        super.clearState();
     }
 
     @Override
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index 3d0fc92..88543e5 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -497,7 +497,7 @@
     public void resizeTask(int taskId, Rect bounds, int resizeMode) throws RemoteException;
 
     public Rect getTaskBounds(int taskId) throws RemoteException;
-    public Bitmap getTaskDescriptionIcon(String filename) throws RemoteException;
+    public Bitmap getTaskDescriptionIcon(String filename, int userId) throws RemoteException;
 
     public void startInPlaceAnimationOnFrontMostApplication(ActivityOptions opts)
             throws RemoteException;
diff --git a/core/java/android/app/INotificationManager.aidl b/core/java/android/app/INotificationManager.aidl
index 30232da..84ddd9f 100644
--- a/core/java/android/app/INotificationManager.aidl
+++ b/core/java/android/app/INotificationManager.aidl
@@ -50,9 +50,6 @@
     void setPackagePriority(String pkg, int uid, int priority);
     int getPackagePriority(String pkg, int uid);
 
-    void setPackagePeekable(String pkg, int uid, boolean peekable);
-    boolean getPackagePeekable(String pkg, int uid);
-
     void setPackageVisibilityOverride(String pkg, int uid, int visibility);
     int getPackageVisibilityOverride(String pkg, int uid);
 
diff --git a/core/java/android/app/Notification.java b/core/java/android/app/Notification.java
index b5b77e6..4e6548b 100644
--- a/core/java/android/app/Notification.java
+++ b/core/java/android/app/Notification.java
@@ -838,13 +838,6 @@
     public static final String EXTRA_PEOPLE = "android.people";
 
     /**
-     * {@link #extras} key: used to provide hints about the appropriateness of
-     * displaying this notification as a heads-up notification.
-     * @hide
-     */
-    public static final String EXTRA_AS_HEADS_UP = "headsup";
-
-    /**
      * Allow certain system-generated notifications to appear before the device is provisioned.
      * Only available to notifications coming from the android package.
      * @hide
@@ -887,32 +880,6 @@
      */
     public static final String EXTRA_BUILDER_APPLICATION_INFO = "android.appInfo";
 
-    /**
-     * Value for {@link #EXTRA_AS_HEADS_UP} that indicates this notification should not be
-     * displayed in the heads up space.
-     *
-     * <p>
-     * If this notification has a {@link #fullScreenIntent}, then it will always launch the
-     * full-screen intent when posted.
-     * </p>
-     * @hide
-     */
-    public static final int HEADS_UP_NEVER = 0;
-
-    /**
-     * Default value for {@link #EXTRA_AS_HEADS_UP} that indicates this notification may be
-     * displayed as a heads up.
-     * @hide
-     */
-    public static final int HEADS_UP_ALLOWED = 1;
-
-    /**
-     * Value for {@link #EXTRA_AS_HEADS_UP} that indicates this notification is a
-     * good candidate for display as a heads up.
-     * @hide
-     */
-    public static final int HEADS_UP_REQUESTED = 2;
-
     private Icon mSmallIcon;
     private Icon mLargeIcon;
 
@@ -3271,12 +3238,16 @@
          * Construct a RemoteViews for the final big notification layout.
          */
         public RemoteViews makeBigContentView() {
-            if (mStyle != null) {
+            if (mN.bigContentView != null) {
+                return mN.bigContentView;
+            } else if (mStyle != null) {
                 final RemoteViews styleView = mStyle.makeBigContentView();
                 if (styleView != null) {
                     return styleView;
                 }
-            } else if (mActions.size() == 0) return null;
+            } else if (mActions.size() == 0) {
+                return null;
+            }
 
             return applyStandardTemplateWithActions(getBigBaseLayoutResource());
         }
@@ -3285,12 +3256,17 @@
          * Construct a RemoteViews for the final heads-up notification layout.
          */
         public RemoteViews makeHeadsUpContentView() {
-            if (mStyle != null) {
-                final RemoteViews styleView = mStyle.makeHeadsUpContentView();
-                if (styleView != null) {
-                    return styleView;
-                }
-            } else if (mActions.size() == 0) return null;
+            if (mN.headsUpContentView != null) {
+                return mN.headsUpContentView;
+            } else if (mStyle != null) {
+                    final RemoteViews styleView = mStyle.makeHeadsUpContentView();
+                    if (styleView != null) {
+                        return styleView;
+                    }
+            } else if (mActions.size() == 0) {
+                return null;
+            }
+
 
             return applyStandardTemplateWithActions(getBigBaseLayoutResource());
         }
diff --git a/core/java/android/os/storage/VolumeInfo.java b/core/java/android/os/storage/VolumeInfo.java
index c368e5a..5997515 100644
--- a/core/java/android/os/storage/VolumeInfo.java
+++ b/core/java/android/os/storage/VolumeInfo.java
@@ -435,7 +435,7 @@
             return null;
         }
 
-        final Intent intent = new Intent(DocumentsContract.ACTION_BROWSE_DOCUMENT_ROOT);
+        final Intent intent = new Intent(DocumentsContract.ACTION_BROWSE);
         intent.addCategory(Intent.CATEGORY_DEFAULT);
         intent.setData(uri);
         intent.putExtra(DocumentsContract.EXTRA_SHOW_FILESIZE, true);
diff --git a/core/java/android/provider/DocumentsContract.java b/core/java/android/provider/DocumentsContract.java
index 159ca01..af7f472 100644
--- a/core/java/android/provider/DocumentsContract.java
+++ b/core/java/android/provider/DocumentsContract.java
@@ -125,8 +125,7 @@
     public static final String ACTION_MANAGE_DOCUMENT = "android.provider.action.MANAGE_DOCUMENT";
 
     /** {@hide} */
-    public static final String
-            ACTION_BROWSE_DOCUMENT_ROOT = "android.provider.action.BROWSE_DOCUMENT_ROOT";
+    public static final String ACTION_BROWSE = "android.provider.action.BROWSE";
 
     /** {@hide} */
     public static final String
diff --git a/core/java/android/service/voice/VoiceInteractionServiceInfo.java b/core/java/android/service/voice/VoiceInteractionServiceInfo.java
index 463eb5b..ebe3f47 100644
--- a/core/java/android/service/voice/VoiceInteractionServiceInfo.java
+++ b/core/java/android/service/voice/VoiceInteractionServiceInfo.java
@@ -52,9 +52,21 @@
     }
 
     public VoiceInteractionServiceInfo(PackageManager pm, ComponentName comp, int userHandle)
-            throws PackageManager.NameNotFoundException, RemoteException {
-        this(pm, AppGlobals.getPackageManager().getServiceInfo(comp,
-                PackageManager.GET_META_DATA, userHandle));
+            throws PackageManager.NameNotFoundException {
+        this(pm, getServiceInfoOrThrow(comp, userHandle));
+    }
+
+    static ServiceInfo getServiceInfoOrThrow(ComponentName comp, int userHandle)
+            throws PackageManager.NameNotFoundException {
+        try {
+            ServiceInfo si = AppGlobals.getPackageManager().getServiceInfo(comp,
+                    PackageManager.GET_META_DATA, userHandle);
+            if (si != null) {
+                return si;
+            }
+        } catch (RemoteException e) {
+        }
+        throw new PackageManager.NameNotFoundException(comp.toString());
     }
 
     public VoiceInteractionServiceInfo(PackageManager pm, ServiceInfo si) {
diff --git a/core/java/android/util/PathParser.java b/core/java/android/util/PathParser.java
index f099479..f17a16c 100644
--- a/core/java/android/util/PathParser.java
+++ b/core/java/android/util/PathParser.java
@@ -15,10 +15,6 @@
 package android.util;
 
 import android.graphics.Path;
-import android.util.Log;
-
-import java.util.ArrayList;
-import java.util.Arrays;
 
 /**
  * @hide
@@ -45,663 +41,94 @@
     }
 
     /**
-     * @param pathData The string representing a path, the same as "d" string in svg file.
-     * @return an array of the PathDataNode.
+     * Interpret PathData as path commands and insert the commands to the given path.
+     *
+     * @param data The source PathData to be converted.
+     * @param outPath The Path object where path commands will be inserted.
      */
-    public static PathDataNode[] createNodesFromPathData(String pathData) {
-        if (pathData == null) {
-            return null;
-        }
-        int start = 0;
-        int end = 1;
-
-        ArrayList<PathDataNode> list = new ArrayList<PathDataNode>();
-        while (end < pathData.length()) {
-            end = nextStart(pathData, end);
-            String s = pathData.substring(start, end).trim();
-            if (s.length() > 0) {
-                float[] val = getFloats(s);
-                addNode(list, s.charAt(0), val);
-            }
-
-            start = end;
-            end++;
-        }
-        if ((end - start) == 1 && start < pathData.length()) {
-            addNode(list, pathData.charAt(start), new float[0]);
-        }
-        return list.toArray(new PathDataNode[list.size()]);
+    public static void createPathFromPathData(Path outPath, PathData data) {
+        nCreatePathFromPathData(outPath.mNativePath, data.mNativePathData);
     }
 
     /**
-     * @param source The array of PathDataNode to be duplicated.
-     * @return a deep copy of the <code>source</code>.
-     */
-    public static PathDataNode[] deepCopyNodes(PathDataNode[] source) {
-        if (source == null) {
-            return null;
-        }
-        PathDataNode[] copy = new PathParser.PathDataNode[source.length];
-        for (int i = 0; i < source.length; i ++) {
-            copy[i] = new PathDataNode(source[i]);
-        }
-        return copy;
-    }
-
-    /**
-     * @param nodesFrom The source path represented in an array of PathDataNode
-     * @param nodesTo The target path represented in an array of PathDataNode
+     * @param pathDataFrom The source path represented in PathData
+     * @param pathDataTo The target path represented in PathData
      * @return whether the <code>nodesFrom</code> can morph into <code>nodesTo</code>
      */
-    public static boolean canMorph(PathDataNode[] nodesFrom, PathDataNode[] nodesTo) {
-        if (nodesFrom == null || nodesTo == null) {
-            return false;
-        }
-
-        if (nodesFrom.length != nodesTo.length) {
-            return false;
-        }
-
-        for (int i = 0; i < nodesFrom.length; i ++) {
-            if (nodesFrom[i].mType != nodesTo[i].mType
-                    || nodesFrom[i].mParams.length != nodesTo[i].mParams.length) {
-                return false;
-            }
-        }
-        return true;
+    public static boolean canMorph(PathData pathDataFrom, PathData pathDataTo) {
+        return nCanMorph(pathDataFrom.mNativePathData, pathDataTo.mNativePathData);
     }
 
     /**
-     * Update the target's data to match the source.
-     * Before calling this, make sure canMorph(target, source) is true.
+     * PathData class is a wrapper around the native PathData object, which contains
+     * the result of parsing a path string. Specifically, there are verbs and points
+     * associated with each verb stored in PathData. This data can then be used to
+     * generate commands to manipulate a Path.
+     */
+    public static class PathData {
+        long mNativePathData = 0;
+        public PathData() {
+            mNativePathData = nCreateEmptyPathData();
+        }
+
+        public PathData(PathData data) {
+            mNativePathData = nCreatePathData(data.mNativePathData);
+        }
+
+        public PathData(String pathString) {
+            mNativePathData = nCreatePathDataFromString(pathString, pathString.length());
+            if (mNativePathData == 0) {
+                throw new IllegalArgumentException("Invalid pathData: " + pathString);
+            }
+        }
+
+        /**
+         * Update the path data to match the source.
+         * Before calling this, make sure canMorph(target, source) is true.
+         *
+         * @param source The source path represented in PathData
+         */
+        public void setPathData(PathData source) {
+            nSetPathData(mNativePathData, source.mNativePathData);
+        }
+
+        @Override
+        protected void finalize() throws Throwable {
+            if (mNativePathData != 0) {
+                nFinalize(mNativePathData);
+                mNativePathData = 0;
+            }
+            super.finalize();
+        }
+    }
+
+    /**
+     * Interpolate between the <code>fromData</code> and <code>toData</code> according to the
+     * <code>fraction</code>, and put the resulting path data into <code>outData</code>.
      *
-     * @param target The target path represented in an array of PathDataNode
-     * @param source The source path represented in an array of PathDataNode
+     * @param outData The resulting PathData of the interpolation
+     * @param fromData The start value as a PathData.
+     * @param toData The end value as a PathData
+     * @param fraction The fraction to interpolate.
      */
-    public static void updateNodes(PathDataNode[] target, PathDataNode[] source) {
-        for (int i = 0; i < source.length; i ++) {
-            target[i].mType = source[i].mType;
-            for (int j = 0; j < source[i].mParams.length; j ++) {
-                target[i].mParams[j] = source[i].mParams[j];
-            }
-        }
+    public static boolean interpolatePathData(PathData outData, PathData fromData, PathData toData,
+            float fraction) {
+        return nInterpolatePathData(outData.mNativePathData, fromData.mNativePathData,
+                toData.mNativePathData, fraction);
     }
 
-    private static int nextStart(String s, int end) {
-        char c;
-
-        while (end < s.length()) {
-            c = s.charAt(end);
-            // Note that 'e' or 'E' are not valid path commands, but could be
-            // used for floating point numbers' scientific notation.
-            // Therefore, when searching for next command, we should ignore 'e'
-            // and 'E'.
-            if ((((c - 'A') * (c - 'Z') <= 0) || ((c - 'a') * (c - 'z') <= 0))
-                    && c != 'e' && c != 'E') {
-                return end;
-            }
-            end++;
-        }
-        return end;
-    }
-
-    private static void addNode(ArrayList<PathDataNode> list, char cmd, float[] val) {
-        list.add(new PathDataNode(cmd, val));
-    }
-
-    private static class ExtractFloatResult {
-        // We need to return the position of the next separator and whether the
-        // next float starts with a '-' or a '.'.
-        int mEndPosition;
-        boolean mEndWithNegOrDot;
-    }
-
-    /**
-     * Parse the floats in the string.
-     * This is an optimized version of parseFloat(s.split(",|\\s"));
-     *
-     * @param s the string containing a command and list of floats
-     * @return array of floats
-     */
-    private static float[] getFloats(String s) {
-        if (s.charAt(0) == 'z' || s.charAt(0) == 'Z') {
-            return new float[0];
-        }
-        try {
-            float[] results = new float[s.length()];
-            int count = 0;
-            int startPosition = 1;
-            int endPosition = 0;
-
-            ExtractFloatResult result = new ExtractFloatResult();
-            int totalLength = s.length();
-
-            // The startPosition should always be the first character of the
-            // current number, and endPosition is the character after the current
-            // number.
-            while (startPosition < totalLength) {
-                extract(s, startPosition, result);
-                endPosition = result.mEndPosition;
-
-                if (startPosition < endPosition) {
-                    results[count++] = Float.parseFloat(
-                            s.substring(startPosition, endPosition));
-                }
-
-                if (result.mEndWithNegOrDot) {
-                    // Keep the '-' or '.' sign with next number.
-                    startPosition = endPosition;
-                } else {
-                    startPosition = endPosition + 1;
-                }
-            }
-            return Arrays.copyOf(results, count);
-        } catch (NumberFormatException e) {
-            throw new RuntimeException("error in parsing \"" + s + "\"", e);
-        }
-    }
-
-    /**
-     * Calculate the position of the next comma or space or negative sign
-     * @param s the string to search
-     * @param start the position to start searching
-     * @param result the result of the extraction, including the position of the
-     * the starting position of next number, whether it is ending with a '-'.
-     */
-    private static void extract(String s, int start, ExtractFloatResult result) {
-        // Now looking for ' ', ',', '.' or '-' from the start.
-        int currentIndex = start;
-        boolean foundSeparator = false;
-        result.mEndWithNegOrDot = false;
-        boolean secondDot = false;
-        boolean isExponential = false;
-        for (; currentIndex < s.length(); currentIndex++) {
-            boolean isPrevExponential = isExponential;
-            isExponential = false;
-            char currentChar = s.charAt(currentIndex);
-            switch (currentChar) {
-                case ' ':
-                case ',':
-                    foundSeparator = true;
-                    break;
-                case '-':
-                    // The negative sign following a 'e' or 'E' is not a separator.
-                    if (currentIndex != start && !isPrevExponential) {
-                        foundSeparator = true;
-                        result.mEndWithNegOrDot = true;
-                    }
-                    break;
-                case '.':
-                    if (!secondDot) {
-                        secondDot = true;
-                    } else {
-                        // This is the second dot, and it is considered as a separator.
-                        foundSeparator = true;
-                        result.mEndWithNegOrDot = true;
-                    }
-                    break;
-                case 'e':
-                case 'E':
-                    isExponential = true;
-                    break;
-            }
-            if (foundSeparator) {
-                break;
-            }
-        }
-        // When there is nothing found, then we put the end position to the end
-        // of the string.
-        result.mEndPosition = currentIndex;
-    }
-
-    /**
-     * Each PathDataNode represents one command in the "d" attribute of the svg
-     * file.
-     * An array of PathDataNode can represent the whole "d" attribute.
-     */
-    public static class PathDataNode {
-        private char mType;
-        private float[] mParams;
-
-        private PathDataNode(char type, float[] params) {
-            mType = type;
-            mParams = params;
-        }
-
-        private PathDataNode(PathDataNode n) {
-            mType = n.mType;
-            mParams = Arrays.copyOf(n.mParams, n.mParams.length);
-        }
-
-        /**
-         * Convert an array of PathDataNode to Path.
-         *
-         * @param node The source array of PathDataNode.
-         * @param path The target Path object.
-         */
-        public static void nodesToPath(PathDataNode[] node, Path path) {
-            float[] current = new float[6];
-            char previousCommand = 'm';
-            for (int i = 0; i < node.length; i++) {
-                addCommand(path, current, previousCommand, node[i].mType, node[i].mParams);
-                previousCommand = node[i].mType;
-            }
-        }
-
-        /**
-         * The current PathDataNode will be interpolated between the
-         * <code>nodeFrom</code> and <code>nodeTo</code> according to the
-         * <code>fraction</code>.
-         *
-         * @param nodeFrom The start value as a PathDataNode.
-         * @param nodeTo The end value as a PathDataNode
-         * @param fraction The fraction to interpolate.
-         */
-        public void interpolatePathDataNode(PathDataNode nodeFrom,
-                PathDataNode nodeTo, float fraction) {
-            for (int i = 0; i < nodeFrom.mParams.length; i++) {
-                mParams[i] = nodeFrom.mParams[i] * (1 - fraction)
-                        + nodeTo.mParams[i] * fraction;
-            }
-        }
-
-        private static void addCommand(Path path, float[] current,
-                char previousCmd, char cmd, float[] val) {
-
-            int incr = 2;
-            float currentX = current[0];
-            float currentY = current[1];
-            float ctrlPointX = current[2];
-            float ctrlPointY = current[3];
-            float currentSegmentStartX = current[4];
-            float currentSegmentStartY = current[5];
-            float reflectiveCtrlPointX;
-            float reflectiveCtrlPointY;
-
-            switch (cmd) {
-                case 'z':
-                case 'Z':
-                    path.close();
-                    // Path is closed here, but we need to move the pen to the
-                    // closed position. So we cache the segment's starting position,
-                    // and restore it here.
-                    currentX = currentSegmentStartX;
-                    currentY = currentSegmentStartY;
-                    ctrlPointX = currentSegmentStartX;
-                    ctrlPointY = currentSegmentStartY;
-                    path.moveTo(currentX, currentY);
-                    break;
-                case 'm':
-                case 'M':
-                case 'l':
-                case 'L':
-                case 't':
-                case 'T':
-                    incr = 2;
-                    break;
-                case 'h':
-                case 'H':
-                case 'v':
-                case 'V':
-                    incr = 1;
-                    break;
-                case 'c':
-                case 'C':
-                    incr = 6;
-                    break;
-                case 's':
-                case 'S':
-                case 'q':
-                case 'Q':
-                    incr = 4;
-                    break;
-                case 'a':
-                case 'A':
-                    incr = 7;
-                    break;
-            }
-
-            for (int k = 0; k < val.length; k += incr) {
-                switch (cmd) {
-                    case 'm': // moveto - Start a new sub-path (relative)
-                        currentX += val[k + 0];
-                        currentY += val[k + 1];
-                        if (k > 0) {
-                            // According to the spec, if a moveto is followed by multiple
-                            // pairs of coordinates, the subsequent pairs are treated as
-                            // implicit lineto commands.
-                            path.rLineTo(val[k + 0], val[k + 1]);
-                        } else {
-                            path.rMoveTo(val[k + 0], val[k + 1]);
-                            currentSegmentStartX = currentX;
-                            currentSegmentStartY = currentY;
-                        }
-                        break;
-                    case 'M': // moveto - Start a new sub-path
-                        currentX = val[k + 0];
-                        currentY = val[k + 1];
-                        if (k > 0) {
-                            // According to the spec, if a moveto is followed by multiple
-                            // pairs of coordinates, the subsequent pairs are treated as
-                            // implicit lineto commands.
-                            path.lineTo(val[k + 0], val[k + 1]);
-                        } else {
-                            path.moveTo(val[k + 0], val[k + 1]);
-                            currentSegmentStartX = currentX;
-                            currentSegmentStartY = currentY;
-                        }
-                        break;
-                    case 'l': // lineto - Draw a line from the current point (relative)
-                        path.rLineTo(val[k + 0], val[k + 1]);
-                        currentX += val[k + 0];
-                        currentY += val[k + 1];
-                        break;
-                    case 'L': // lineto - Draw a line from the current point
-                        path.lineTo(val[k + 0], val[k + 1]);
-                        currentX = val[k + 0];
-                        currentY = val[k + 1];
-                        break;
-                    case 'h': // horizontal lineto - Draws a horizontal line (relative)
-                        path.rLineTo(val[k + 0], 0);
-                        currentX += val[k + 0];
-                        break;
-                    case 'H': // horizontal lineto - Draws a horizontal line
-                        path.lineTo(val[k + 0], currentY);
-                        currentX = val[k + 0];
-                        break;
-                    case 'v': // vertical lineto - Draws a vertical line from the current point (r)
-                        path.rLineTo(0, val[k + 0]);
-                        currentY += val[k + 0];
-                        break;
-                    case 'V': // vertical lineto - Draws a vertical line from the current point
-                        path.lineTo(currentX, val[k + 0]);
-                        currentY = val[k + 0];
-                        break;
-                    case 'c': // curveto - Draws a cubic Bézier curve (relative)
-                        path.rCubicTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3],
-                                val[k + 4], val[k + 5]);
-
-                        ctrlPointX = currentX + val[k + 2];
-                        ctrlPointY = currentY + val[k + 3];
-                        currentX += val[k + 4];
-                        currentY += val[k + 5];
-
-                        break;
-                    case 'C': // curveto - Draws a cubic Bézier curve
-                        path.cubicTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3],
-                                val[k + 4], val[k + 5]);
-                        currentX = val[k + 4];
-                        currentY = val[k + 5];
-                        ctrlPointX = val[k + 2];
-                        ctrlPointY = val[k + 3];
-                        break;
-                    case 's': // smooth curveto - Draws a cubic Bézier curve (reflective cp)
-                        reflectiveCtrlPointX = 0;
-                        reflectiveCtrlPointY = 0;
-                        if (previousCmd == 'c' || previousCmd == 's'
-                                || previousCmd == 'C' || previousCmd == 'S') {
-                            reflectiveCtrlPointX = currentX - ctrlPointX;
-                            reflectiveCtrlPointY = currentY - ctrlPointY;
-                        }
-                        path.rCubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                                val[k + 0], val[k + 1],
-                                val[k + 2], val[k + 3]);
-
-                        ctrlPointX = currentX + val[k + 0];
-                        ctrlPointY = currentY + val[k + 1];
-                        currentX += val[k + 2];
-                        currentY += val[k + 3];
-                        break;
-                    case 'S': // shorthand/smooth curveto Draws a cubic Bézier curve(reflective cp)
-                        reflectiveCtrlPointX = currentX;
-                        reflectiveCtrlPointY = currentY;
-                        if (previousCmd == 'c' || previousCmd == 's'
-                                || previousCmd == 'C' || previousCmd == 'S') {
-                            reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
-                            reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
-                        }
-                        path.cubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                                val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
-                        ctrlPointX = val[k + 0];
-                        ctrlPointY = val[k + 1];
-                        currentX = val[k + 2];
-                        currentY = val[k + 3];
-                        break;
-                    case 'q': // Draws a quadratic Bézier (relative)
-                        path.rQuadTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
-                        ctrlPointX = currentX + val[k + 0];
-                        ctrlPointY = currentY + val[k + 1];
-                        currentX += val[k + 2];
-                        currentY += val[k + 3];
-                        break;
-                    case 'Q': // Draws a quadratic Bézier
-                        path.quadTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
-                        ctrlPointX = val[k + 0];
-                        ctrlPointY = val[k + 1];
-                        currentX = val[k + 2];
-                        currentY = val[k + 3];
-                        break;
-                    case 't': // Draws a quadratic Bézier curve(reflective control point)(relative)
-                        reflectiveCtrlPointX = 0;
-                        reflectiveCtrlPointY = 0;
-                        if (previousCmd == 'q' || previousCmd == 't'
-                                || previousCmd == 'Q' || previousCmd == 'T') {
-                            reflectiveCtrlPointX = currentX - ctrlPointX;
-                            reflectiveCtrlPointY = currentY - ctrlPointY;
-                        }
-                        path.rQuadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                                val[k + 0], val[k + 1]);
-                        ctrlPointX = currentX + reflectiveCtrlPointX;
-                        ctrlPointY = currentY + reflectiveCtrlPointY;
-                        currentX += val[k + 0];
-                        currentY += val[k + 1];
-                        break;
-                    case 'T': // Draws a quadratic Bézier curve (reflective control point)
-                        reflectiveCtrlPointX = currentX;
-                        reflectiveCtrlPointY = currentY;
-                        if (previousCmd == 'q' || previousCmd == 't'
-                                || previousCmd == 'Q' || previousCmd == 'T') {
-                            reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
-                            reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
-                        }
-                        path.quadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                                val[k + 0], val[k + 1]);
-                        ctrlPointX = reflectiveCtrlPointX;
-                        ctrlPointY = reflectiveCtrlPointY;
-                        currentX = val[k + 0];
-                        currentY = val[k + 1];
-                        break;
-                    case 'a': // Draws an elliptical arc
-                        // (rx ry x-axis-rotation large-arc-flag sweep-flag x y)
-                        drawArc(path,
-                                currentX,
-                                currentY,
-                                val[k + 5] + currentX,
-                                val[k + 6] + currentY,
-                                val[k + 0],
-                                val[k + 1],
-                                val[k + 2],
-                                val[k + 3] != 0,
-                                val[k + 4] != 0);
-                        currentX += val[k + 5];
-                        currentY += val[k + 6];
-                        ctrlPointX = currentX;
-                        ctrlPointY = currentY;
-                        break;
-                    case 'A': // Draws an elliptical arc
-                        drawArc(path,
-                                currentX,
-                                currentY,
-                                val[k + 5],
-                                val[k + 6],
-                                val[k + 0],
-                                val[k + 1],
-                                val[k + 2],
-                                val[k + 3] != 0,
-                                val[k + 4] != 0);
-                        currentX = val[k + 5];
-                        currentY = val[k + 6];
-                        ctrlPointX = currentX;
-                        ctrlPointY = currentY;
-                        break;
-                }
-                previousCmd = cmd;
-            }
-            current[0] = currentX;
-            current[1] = currentY;
-            current[2] = ctrlPointX;
-            current[3] = ctrlPointY;
-            current[4] = currentSegmentStartX;
-            current[5] = currentSegmentStartY;
-        }
-
-        private static void drawArc(Path p,
-                float x0,
-                float y0,
-                float x1,
-                float y1,
-                float a,
-                float b,
-                float theta,
-                boolean isMoreThanHalf,
-                boolean isPositiveArc) {
-
-            /* Convert rotation angle from degrees to radians */
-            double thetaD = Math.toRadians(theta);
-            /* Pre-compute rotation matrix entries */
-            double cosTheta = Math.cos(thetaD);
-            double sinTheta = Math.sin(thetaD);
-            /* Transform (x0, y0) and (x1, y1) into unit space */
-            /* using (inverse) rotation, followed by (inverse) scale */
-            double x0p = (x0 * cosTheta + y0 * sinTheta) / a;
-            double y0p = (-x0 * sinTheta + y0 * cosTheta) / b;
-            double x1p = (x1 * cosTheta + y1 * sinTheta) / a;
-            double y1p = (-x1 * sinTheta + y1 * cosTheta) / b;
-
-            /* Compute differences and averages */
-            double dx = x0p - x1p;
-            double dy = y0p - y1p;
-            double xm = (x0p + x1p) / 2;
-            double ym = (y0p + y1p) / 2;
-            /* Solve for intersecting unit circles */
-            double dsq = dx * dx + dy * dy;
-            if (dsq == 0.0) {
-                Log.w(LOGTAG, " Points are coincident");
-                return; /* Points are coincident */
-            }
-            double disc = 1.0 / dsq - 1.0 / 4.0;
-            if (disc < 0.0) {
-                Log.w(LOGTAG, "Points are too far apart " + dsq);
-                float adjust = (float) (Math.sqrt(dsq) / 1.99999);
-                drawArc(p, x0, y0, x1, y1, a * adjust,
-                        b * adjust, theta, isMoreThanHalf, isPositiveArc);
-                return; /* Points are too far apart */
-            }
-            double s = Math.sqrt(disc);
-            double sdx = s * dx;
-            double sdy = s * dy;
-            double cx;
-            double cy;
-            if (isMoreThanHalf == isPositiveArc) {
-                cx = xm - sdy;
-                cy = ym + sdx;
-            } else {
-                cx = xm + sdy;
-                cy = ym - sdx;
-            }
-
-            double eta0 = Math.atan2((y0p - cy), (x0p - cx));
-
-            double eta1 = Math.atan2((y1p - cy), (x1p - cx));
-
-            double sweep = (eta1 - eta0);
-            if (isPositiveArc != (sweep >= 0)) {
-                if (sweep > 0) {
-                    sweep -= 2 * Math.PI;
-                } else {
-                    sweep += 2 * Math.PI;
-                }
-            }
-
-            cx *= a;
-            cy *= b;
-            double tcx = cx;
-            cx = cx * cosTheta - cy * sinTheta;
-            cy = tcx * sinTheta + cy * cosTheta;
-
-            arcToBezier(p, cx, cy, a, b, x0, y0, thetaD, eta0, sweep);
-        }
-
-        /**
-         * Converts an arc to cubic Bezier segments and records them in p.
-         *
-         * @param p The target for the cubic Bezier segments
-         * @param cx The x coordinate center of the ellipse
-         * @param cy The y coordinate center of the ellipse
-         * @param a The radius of the ellipse in the horizontal direction
-         * @param b The radius of the ellipse in the vertical direction
-         * @param e1x E(eta1) x coordinate of the starting point of the arc
-         * @param e1y E(eta2) y coordinate of the starting point of the arc
-         * @param theta The angle that the ellipse bounding rectangle makes with horizontal plane
-         * @param start The start angle of the arc on the ellipse
-         * @param sweep The angle (positive or negative) of the sweep of the arc on the ellipse
-         */
-        private static void arcToBezier(Path p,
-                double cx,
-                double cy,
-                double a,
-                double b,
-                double e1x,
-                double e1y,
-                double theta,
-                double start,
-                double sweep) {
-            // Taken from equations at: http://spaceroots.org/documents/ellipse/node8.html
-            // and http://www.spaceroots.org/documents/ellipse/node22.html
-
-            // Maximum of 45 degrees per cubic Bezier segment
-            int numSegments = (int) Math.ceil(Math.abs(sweep * 4 / Math.PI));
-
-            double eta1 = start;
-            double cosTheta = Math.cos(theta);
-            double sinTheta = Math.sin(theta);
-            double cosEta1 = Math.cos(eta1);
-            double sinEta1 = Math.sin(eta1);
-            double ep1x = (-a * cosTheta * sinEta1) - (b * sinTheta * cosEta1);
-            double ep1y = (-a * sinTheta * sinEta1) + (b * cosTheta * cosEta1);
-
-            double anglePerSegment = sweep / numSegments;
-            for (int i = 0; i < numSegments; i++) {
-                double eta2 = eta1 + anglePerSegment;
-                double sinEta2 = Math.sin(eta2);
-                double cosEta2 = Math.cos(eta2);
-                double e2x = cx + (a * cosTheta * cosEta2) - (b * sinTheta * sinEta2);
-                double e2y = cy + (a * sinTheta * cosEta2) + (b * cosTheta * sinEta2);
-                double ep2x = -a * cosTheta * sinEta2 - b * sinTheta * cosEta2;
-                double ep2y = -a * sinTheta * sinEta2 + b * cosTheta * cosEta2;
-                double tanDiff2 = Math.tan((eta2 - eta1) / 2);
-                double alpha =
-                        Math.sin(eta2 - eta1) * (Math.sqrt(4 + (3 * tanDiff2 * tanDiff2)) - 1) / 3;
-                double q1x = e1x + alpha * ep1x;
-                double q1y = e1y + alpha * ep1y;
-                double q2x = e2x - alpha * ep2x;
-                double q2y = e2y - alpha * ep2y;
-
-                p.cubicTo((float) q1x,
-                        (float) q1y,
-                        (float) q2x,
-                        (float) q2y,
-                        (float) e2x,
-                        (float) e2y);
-                eta1 = eta2;
-                e1x = e2x;
-                e1y = e2y;
-                ep1x = ep2x;
-                ep1y = ep2y;
-            }
-        }
-    }
-
+    // Native functions are defined below.
     private static native boolean nParseStringForPath(long pathPtr, String pathString,
             int stringLength);
+    private static native void nCreatePathFromPathData(long outPathPtr, long pathData);
+    private static native long nCreateEmptyPathData();
+    private static native long nCreatePathData(long nativePtr);
+    private static native long nCreatePathDataFromString(String pathString, int stringLength);
+    private static native boolean nInterpolatePathData(long outDataPtr, long fromDataPtr,
+            long toDataPtr, float fraction);
+    private static native void nFinalize(long nativePtr);
+    private static native boolean nCanMorph(long fromDataPtr, long toDataPtr);
+    private static native void nSetPathData(long outDataPtr, long fromDataPtr);
 }
+
+
diff --git a/core/java/android/view/IWindowSession.aidl b/core/java/android/view/IWindowSession.aidl
index 3fc70cc..f81b5d0 100644
--- a/core/java/android/view/IWindowSession.aidl
+++ b/core/java/android/view/IWindowSession.aidl
@@ -186,6 +186,11 @@
 	void reportDropResult(IWindow window, boolean consumed);
 
     /**
+     * Cancel a drag operation.
+     */
+    void cancelDrag(IBinder dragToken);
+
+    /**
      * Tell the OS that we've just dragged into a View that is willing to accept the drop
      */
     void dragRecipientEntered(IWindow window);
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index de4d439..30408c6 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -19905,11 +19905,11 @@
         }
         Surface surface = new Surface();
         try {
-            IBinder token = mAttachInfo.mSession.prepareDrag(mAttachInfo.mWindow,
+            mAttachInfo.mDragToken = mAttachInfo.mSession.prepareDrag(mAttachInfo.mWindow,
                     flags, shadowSize.x, shadowSize.y, surface);
-            if (ViewDebug.DEBUG_DRAG) Log.d(VIEW_LOG_TAG, "prepareDrag returned token=" + token
-                    + " surface=" + surface);
-            if (token != null) {
+            if (ViewDebug.DEBUG_DRAG) Log.d(VIEW_LOG_TAG, "prepareDrag returned token="
+                    + mAttachInfo.mDragToken + " surface=" + surface);
+            if (mAttachInfo.mDragToken != null) {
                 Canvas canvas = surface.lockCanvas(null);
                 try {
                     canvas.drawColor(0, PorterDuff.Mode.CLEAR);
@@ -19926,7 +19926,7 @@
                 // repurpose 'shadowSize' for the last touch point
                 root.getLastTouchPoint(shadowSize);
 
-                okay = mAttachInfo.mSession.performDrag(mAttachInfo.mWindow, token,
+                okay = mAttachInfo.mSession.performDrag(mAttachInfo.mWindow, mAttachInfo.mDragToken,
                         shadowSize.x, shadowSize.y,
                         shadowTouchPoint.x, shadowTouchPoint.y, data);
                 if (ViewDebug.DEBUG_DRAG) Log.d(VIEW_LOG_TAG, "performDrag returned " + okay);
@@ -19943,6 +19943,22 @@
         return okay;
     }
 
+    public final void cancelDrag() {
+        if (ViewDebug.DEBUG_DRAG) {
+            Log.d(VIEW_LOG_TAG, "cancelDrag");
+        }
+        if (mAttachInfo.mDragToken != null) {
+            try {
+                mAttachInfo.mSession.cancelDrag(mAttachInfo.mDragToken);
+            } catch (Exception e) {
+                Log.e(VIEW_LOG_TAG, "Unable to cancel drag", e);
+            }
+            mAttachInfo.mDragToken = null;
+        } else {
+            Log.e(VIEW_LOG_TAG, "No active drag to cancel");
+        }
+    }
+
     /**
      * Starts a move from {startX, startY}, the amount of the movement will be the offset
      * between {startX, startY} and the new cursor positon.
@@ -22221,6 +22237,11 @@
         View mViewRequestingLayout;
 
         /**
+         * Used to track the identity of the current drag operation.
+         */
+        IBinder mDragToken;
+
+        /**
          * Creates a new set of attachment information with the specified
          * events handler and thread.
          *
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index cd9dd97..f1d9f1ab 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -5307,10 +5307,10 @@
                     }
                 }
 
-                // When the drag operation ends, release any local state object
-                // that may have been in use
+                // When the drag operation ends, reset drag-related state
                 if (what == DragEvent.ACTION_DRAG_ENDED) {
                     setLocalDragState(null);
+                    mAttachInfo.mDragToken = null;
                 }
             }
         }
diff --git a/core/java/android/view/inputmethod/InputMethodManager.java b/core/java/android/view/inputmethod/InputMethodManager.java
index 122b83a..19a98f3 100644
--- a/core/java/android/view/inputmethod/InputMethodManager.java
+++ b/core/java/android/view/inputmethod/InputMethodManager.java
@@ -23,6 +23,7 @@
 import com.android.internal.view.IInputMethodManager;
 import com.android.internal.view.IInputMethodSession;
 import com.android.internal.view.InputBindResult;
+import com.android.internal.view.InputMethodClient;
 
 import android.annotation.RequiresPermission;
 import android.content.Context;
@@ -440,8 +441,11 @@
                 }
                 case MSG_UNBIND: {
                     final int sequence = msg.arg1;
+                    @InputMethodClient.UnbindReason
+                    final int reason = msg.arg2;
                     if (DEBUG) {
-                        Log.i(TAG, "handleMessage: MSG_UNBIND " + sequence);
+                        Log.i(TAG, "handleMessage: MSG_UNBIND " + sequence +
+                                " reason=" + InputMethodClient.getUnbindReason(reason));
                     }
                     final boolean startInput;
                     synchronized (mH) {
@@ -536,6 +540,13 @@
         void deactivate() {
             mActive = false;
         }
+
+        @Override
+        public String toString() {
+            return "ControlledInputConnectionWrapper{mActive=" + mActive
+                    + " mParentInputMethodManager.mActive=" + mParentInputMethodManager.mActive
+                    + "}";
+        }
     }
     
     final IInputMethodClient.Stub mClient = new IInputMethodClient.Stub() {
@@ -569,8 +580,8 @@
         }
 
         @Override
-        public void onUnbindMethod(int sequence) {
-            mH.sendMessage(mH.obtainMessage(MSG_UNBIND, sequence, 0));
+        public void onUnbindMethod(int sequence, @InputMethodClient.UnbindReason int unbindReason) {
+            mH.sendMessage(mH.obtainMessage(MSG_UNBIND, sequence, unbindReason));
         }
 
         @Override
diff --git a/core/java/android/widget/ActionMenuPresenter.java b/core/java/android/widget/ActionMenuPresenter.java
index 5eea252..47df4e8 100644
--- a/core/java/android/widget/ActionMenuPresenter.java
+++ b/core/java/android/widget/ActionMenuPresenter.java
@@ -177,8 +177,7 @@
 
     public void onConfigurationChanged(Configuration newConfig) {
         if (!mMaxItemsSet) {
-            mMaxItems = mContext.getResources().getInteger(
-                    com.android.internal.R.integer.max_action_buttons);
+            mMaxItems = ActionBarPolicy.get(mContext).getMaxActionButtons();
         }
         if (mMenu != null) {
             mMenu.onItemsChanged(true);
diff --git a/core/java/android/widget/CheckedTextView.java b/core/java/android/widget/CheckedTextView.java
index a018d26..9f94005 100644
--- a/core/java/android/widget/CheckedTextView.java
+++ b/core/java/android/widget/CheckedTextView.java
@@ -28,6 +28,8 @@
 import android.graphics.Canvas;
 import android.graphics.PorterDuff;
 import android.graphics.drawable.Drawable;
+import android.os.Parcel;
+import android.os.Parcelable;
 import android.util.AttributeSet;
 import android.view.Gravity;
 import android.view.RemotableViewMethod;
@@ -447,6 +449,68 @@
         return CheckedTextView.class.getName();
     }
 
+    static class SavedState extends BaseSavedState {
+        boolean checked;
+
+        /**
+         * Constructor called from {@link CheckedTextView#onSaveInstanceState()}
+         */
+        SavedState(Parcelable superState) {
+            super(superState);
+        }
+
+        /**
+         * Constructor called from {@link #CREATOR}
+         */
+        private SavedState(Parcel in) {
+            super(in);
+            checked = (Boolean)in.readValue(null);
+        }
+
+        @Override
+        public void writeToParcel(Parcel out, int flags) {
+            super.writeToParcel(out, flags);
+            out.writeValue(checked);
+        }
+
+        @Override
+        public String toString() {
+            return "CheckedTextView.SavedState{"
+                    + Integer.toHexString(System.identityHashCode(this))
+                    + " checked=" + checked + "}";
+        }
+
+        public static final Parcelable.Creator<SavedState> CREATOR
+                = new Parcelable.Creator<SavedState>() {
+            public SavedState createFromParcel(Parcel in) {
+                return new SavedState(in);
+            }
+
+            public SavedState[] newArray(int size) {
+                return new SavedState[size];
+            }
+        };
+    }
+
+    @Override
+    public Parcelable onSaveInstanceState() {
+        Parcelable superState = super.onSaveInstanceState();
+
+        SavedState ss = new SavedState(superState);
+
+        ss.checked = isChecked();
+        return ss;
+    }
+
+    @Override
+    public void onRestoreInstanceState(Parcelable state) {
+        SavedState ss = (SavedState) state;
+
+        super.onRestoreInstanceState(ss.getSuperState());
+        setChecked(ss.checked);
+        requestLayout();
+    }
+
     /** @hide */
     @Override
     public void onInitializeAccessibilityEventInternal(AccessibilityEvent event) {
diff --git a/core/java/android/widget/TextView.java b/core/java/android/widget/TextView.java
index b5d994d..3e6d121 100644
--- a/core/java/android/widget/TextView.java
+++ b/core/java/android/widget/TextView.java
@@ -3366,10 +3366,17 @@
     }
 
     /**
-     * Sets whether the movement method will automatically be set to
-     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
-     * set to nonzero and links are detected in {@link #setText}.
-     * The default is true.
+     * Sets whether the movement method will automatically be set to {@link LinkMovementMethod}
+     * after {@link #setText} or {@link #append} is called. The movement method is set if one of the
+     * following is true:
+     * <ul>
+     * <li>{@link #setAutoLinkMask} has been set to nonzero and links are detected in
+     * {@link #setText} or {@link #append}.
+     * <li>The input for {@link #setText} or {@link #append} contains a {@link ClickableSpan}.
+     * </ul>
+     *
+     * <p>This function does not have an immediate effect, movement method will be set only after a
+     * call to {@link #setText} or {@link #append}. The default is true.</p>
      *
      * @attr ref android.R.styleable#TextView_linksClickable
      */
@@ -3379,10 +3386,14 @@
     }
 
     /**
-     * Returns whether the movement method will automatically be set to
-     * {@link LinkMovementMethod} if {@link #setAutoLinkMask} has been
-     * set to nonzero and links are detected in {@link #setText}.
-     * The default is true.
+     * Returns whether the movement method will automatically be set to {@link LinkMovementMethod}
+     * after {@link #setText} or {@link #append} is called.
+     *
+     * See {@link #setLinksClickable} for details.
+     *
+     * <p>The default is true.</p>
+     *
+     * @see #setLinksClickable
      *
      * @attr ref android.R.styleable#TextView_linksClickable
      */
@@ -3976,13 +3987,19 @@
 
         ((Editable) mText).append(text, start, end);
 
+        boolean hasClickableSpans = false;
         if (mAutoLinkMask != 0) {
-            boolean linksWereAdded = Linkify.addLinks((Spannable) mText, mAutoLinkMask);
-            // Do not change the movement method for text that support text selection as it
-            // would prevent an arbitrary cursor displacement.
-            if (linksWereAdded && mLinksClickable && !textCanBeSelected()) {
-                setMovementMethod(LinkMovementMethod.getInstance());
-            }
+            hasClickableSpans = Linkify.addLinks((Spannable) mText, mAutoLinkMask);
+        } else if (mLinksClickable && text instanceof Spanned) {
+            ClickableSpan[] clickableSpans =
+                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
+            hasClickableSpans = clickableSpans != null && clickableSpans.length > 0;
+        }
+
+        // Do not change the movement method for text that supports text selection as it
+        // would prevent an arbitrary cursor displacement.
+        if (hasClickableSpans && mLinksClickable && !textCanBeSelected()) {
+            setMovementMethod(LinkMovementMethod.getInstance());
         }
     }
 
@@ -4327,6 +4344,7 @@
             text = TextUtils.stringOrSpannedString(text);
         }
 
+        boolean hasClickableSpans = false;
         if (mAutoLinkMask != 0) {
             Spannable s2;
 
@@ -4336,22 +4354,32 @@
                 s2 = mSpannableFactory.newSpannable(text);
             }
 
-            if (Linkify.addLinks(s2, mAutoLinkMask)) {
+            hasClickableSpans = Linkify.addLinks(s2, mAutoLinkMask);
+            if (hasClickableSpans) {
                 text = s2;
-                type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
+            }
+        } else if (mLinksClickable && text instanceof Spanned) {
+            ClickableSpan[] clickableSpans =
+                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
+            hasClickableSpans = clickableSpans != null && clickableSpans.length > 0;
+            if (hasClickableSpans && !(text instanceof Spannable)) {
+                text = mSpannableFactory.newSpannable(text);
+            }
+        }
 
-                /*
-                 * We must go ahead and set the text before changing the
-                 * movement method, because setMovementMethod() may call
-                 * setText() again to try to upgrade the buffer type.
-                 */
-                mText = text;
+        if (hasClickableSpans) {
+            type = (type == BufferType.EDITABLE) ? BufferType.EDITABLE : BufferType.SPANNABLE;
+            /*
+             * We must go ahead and set the text before changing the
+             * movement method, because setMovementMethod() may call
+             * setText() again to try to upgrade the buffer type.
+             */
+            mText = text;
 
-                // Do not change the movement method for text that support text selection as it
-                // would prevent an arbitrary cursor displacement.
-                if (mLinksClickable && !textCanBeSelected()) {
-                    setMovementMethod(LinkMovementMethod.getInstance());
-                }
+            // Do not change the movement method for text that supports text selection as it
+            // would prevent an arbitrary cursor displacement.
+            if (mLinksClickable && !textCanBeSelected()) {
+                setMovementMethod(LinkMovementMethod.getInstance());
             }
         }
 
diff --git a/core/java/com/android/internal/policy/DecorView.java b/core/java/com/android/internal/policy/DecorView.java
index 077cebc..4c221fc5 100644
--- a/core/java/com/android/internal/policy/DecorView.java
+++ b/core/java/com/android/internal/policy/DecorView.java
@@ -25,8 +25,8 @@
 import com.android.internal.view.menu.MenuPopupHelper;
 import com.android.internal.widget.ActionBarContextView;
 import com.android.internal.widget.BackgroundFallback;
+import com.android.internal.widget.DecorCaptionView;
 import com.android.internal.widget.FloatingToolbar;
-import com.android.internal.widget.NonClientDecorView;
 
 import android.animation.Animator;
 import android.animation.ObjectAnimator;
@@ -88,6 +88,18 @@
 
     private static final boolean SWEEP_OPEN_MENU = false;
 
+    // The height of a window which has focus in DIP.
+    private final static int DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP = 20;
+    // The height of a window which has not in DIP.
+    private final static int DECOR_SHADOW_UNFOCUSED_HEIGHT_IN_DIP = 5;
+
+    // Cludge to address b/22668382: Set the shadow size to the maximum so that the layer
+    // size calculation takes the shadow size into account. We set the elevation currently
+    // to max until the first layout command has been executed.
+    private boolean mAllowUpdateElevation = false;
+
+    private boolean mElevationAdjustedForStack = false;
+
     int mDefaultOpacity = PixelFormat.OPAQUE;
 
     /** The feature ID of the panel, or -1 if this is the application's DecorView */
@@ -101,8 +113,7 @@
 
     private final Rect mFrameOffsets = new Rect();
 
-    // True if a non client area decor exists.
-    private boolean mHasNonClientDecor = false;
+    private boolean mHasCaption = false;
 
     private boolean mChanging;
 
@@ -161,18 +172,18 @@
     private Rect mTempRect;
     private Rect mOutsets = new Rect();
 
-    // This is the non client decor view for the window, containing the caption and window control
+    // This is the caption view for the window, containing the caption and window control
     // buttons. The visibility of this decor depends on the workspace and the window type.
     // If the window type does not require such a view, this member might be null.
-    NonClientDecorView mNonClientDecorView;
+    DecorCaptionView mDecorCaptionView;
 
-    // The non client decor needs to adapt to the used workspace. Since querying and changing the
-    // workspace is expensive, this is the workspace value the window is currently set up for.
-    int mWorkspaceId;
+    // Stack window is currently in. Since querying and changing the stack is expensive,
+    // this is the stack value the window is currently set up for.
+    int mStackId;
 
     private boolean mWindowResizeCallbacksAdded = false;
 
-    public BackdropFrameRenderer mBackdropFrameRenderer = null;
+    BackdropFrameRenderer mBackdropFrameRenderer = null;
     private Drawable mResizingBackgroundDrawable;
     private Drawable mCaptionBackgroundDrawable;
 
@@ -191,7 +202,7 @@
         setWindow(window);
     }
 
-    public void setBackgroundFallback(int resId) {
+    void setBackgroundFallback(int resId) {
         mBackgroundFallback.setDrawable(resId != 0 ? getContext().getDrawable(resId) : null);
         setWillNotDraw(getBackground() == null && !mBackgroundFallback.hasFallback());
     }
@@ -351,10 +362,10 @@
     @Override
     public boolean onInterceptTouchEvent(MotionEvent event) {
         int action = event.getAction();
-        if (mHasNonClientDecor && mNonClientDecorView.mVisible) {
-            // Don't dispatch ACTION_DOWN to the non client decor if the window is
-            // resizable and the event was (starting) outside the window.
-            // Window resizing events should be handled by WindowManager.
+        if (mHasCaption && isShowingCaption()) {
+            // Don't dispatch ACTION_DOWN to the captionr if the window is resizable and the event
+            // was (starting) outside the window. Window resizing events should be handled by
+            // WindowManager.
             // TODO: Investigate how to handle the outside touch in window manager
             //       without generating these events.
             //       Currently we receive these because we need to enlarge the window's
@@ -630,6 +641,11 @@
         if (mOutsets.top > 0) {
             offsetTopAndBottom(-mOutsets.top);
         }
+
+        // If the application changed its SystemUI metrics, we might also have to adapt
+        // our shadow elevation.
+        updateElevation();
+        mAllowUpdateElevation = true;
     }
 
     @Override
@@ -781,11 +797,11 @@
         }
     }
 
-    public void startChanging() {
+    void startChanging() {
         mChanging = true;
     }
 
-    public void finishChanging() {
+    void finishChanging() {
         mChanging = false;
         drawableChanged();
     }
@@ -1138,7 +1154,7 @@
         invalidate();
 
         int opacity = PixelFormat.OPAQUE;
-        if (windowHasShadow()) {
+        if (ActivityManager.StackId.hasWindowShadow(mStackId)) {
             // If the window has a shadow, it must be translucent.
             opacity = PixelFormat.TRANSLUCENT;
         } else{
@@ -1213,6 +1229,8 @@
         if (mFloatingActionMode != null) {
             mFloatingActionMode.onWindowFocusChanged(hasWindowFocus);
         }
+
+        updateElevation();
     }
 
     @Override
@@ -1495,38 +1513,19 @@
     }
 
     /**
-     * Informs the decor if a non client decor is attached and visible.
+     * Informs the decor if the caption is attached and visible.
      * @param attachedAndVisible true when the decor is visible.
-     * Note that this will even be called if there is no non client decor.
+     * Note that this will even be called if there is no caption.
      **/
-    void enableNonClientDecor(boolean attachedAndVisible) {
-        if (mHasNonClientDecor != attachedAndVisible) {
-            mHasNonClientDecor = attachedAndVisible;
+    void enableCaption(boolean attachedAndVisible) {
+        if (mHasCaption != attachedAndVisible) {
+            mHasCaption = attachedAndVisible;
             if (getForeground() != null) {
                 drawableChanged();
             }
         }
     }
 
-    /**
-     * Returns true if the window has a non client decor.
-     * @return If there is a non client decor - even if it is not visible.
-     **/
-    private boolean windowHasNonClientDecor() {
-        return mHasNonClientDecor;
-    }
-
-    /**
-     * Returns true if the Window is free floating and has a shadow (although at some times
-     * it might not be displaying it, e.g. during a resize). Note that non overlapping windows
-     * do not have a shadow since it could not be seen anyways (a small screen / tablet
-     * "tiles" the windows side by side but does not overlap them).
-     * @return Returns true when the window has a shadow created by the non client decor.
-     **/
-    private boolean windowHasShadow() {
-        return windowHasNonClientDecor() && ActivityManager.StackId.hasWindowShadow(mWorkspaceId);
-    }
-
     void setWindow(PhoneWindow phoneWindow) {
         mWindow = phoneWindow;
         Context context = getContext();
@@ -1537,91 +1536,89 @@
     }
 
     void onConfigurationChanged() {
-        if (mNonClientDecorView != null) {
-            int workspaceId = getWorkspaceId();
-            if (mWorkspaceId != workspaceId) {
-                mWorkspaceId = workspaceId;
+        int workspaceId = getStackId();
+        if (mDecorCaptionView != null) {
+            if (mStackId != workspaceId) {
+                mStackId = workspaceId;
                 // We might have to change the kind of surface before we do anything else.
-                mNonClientDecorView.onConfigurationChanged(
-                        ActivityManager.StackId.hasWindowDecor(mWorkspaceId),
-                        ActivityManager.StackId.hasWindowShadow(mWorkspaceId));
-                enableNonClientDecor(ActivityManager.StackId.hasWindowDecor(workspaceId));
+                mDecorCaptionView.onConfigurationChanged(
+                        ActivityManager.StackId.hasWindowDecor(mStackId));
+                enableCaption(ActivityManager.StackId.hasWindowDecor(workspaceId));
             }
         }
+        initializeElevation();
     }
 
     View onResourcesLoaded(LayoutInflater inflater, int layoutResource) {
-        mWorkspaceId = getWorkspaceId();
+        mStackId = getStackId();
 
         mResizingBackgroundDrawable = getResizingBackgroundDrawable(
                 mWindow.mBackgroundResource, mWindow.mBackgroundFallbackResource);
         mCaptionBackgroundDrawable =
-                getContext().getDrawable(R.drawable.non_client_decor_title_focused);
+                getContext().getDrawable(R.drawable.decor_caption_title_focused);
 
         if (mBackdropFrameRenderer != null) {
             mBackdropFrameRenderer.onResourcesLoaded(
                     this, mResizingBackgroundDrawable, mCaptionBackgroundDrawable);
         }
 
-        mNonClientDecorView = createNonClientDecorView(inflater);
+        mDecorCaptionView = createDecorCaptionView(inflater);
         final View root = inflater.inflate(layoutResource, null);
-        if (mNonClientDecorView != null) {
-            if (mNonClientDecorView.getParent() == null) {
-                addView(mNonClientDecorView,
+        if (mDecorCaptionView != null) {
+            if (mDecorCaptionView.getParent() == null) {
+                addView(mDecorCaptionView,
                         new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
             }
-            mNonClientDecorView.addView(root,
+            mDecorCaptionView.addView(root,
                     new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
         } else {
             addView(root, new ViewGroup.LayoutParams(MATCH_PARENT, MATCH_PARENT));
         }
         mContentRoot = (ViewGroup) root;
+        initializeElevation();
         return root;
     }
 
-    // Free floating overlapping windows require a non client decor with a caption and shadow..
-    private NonClientDecorView createNonClientDecorView(LayoutInflater inflater) {
-        NonClientDecorView nonClientDecorView = null;
-        for (int i = getChildCount() - 1; i >= 0 && nonClientDecorView == null; i--) {
+    // Free floating overlapping windows require a caption.
+    private DecorCaptionView createDecorCaptionView(LayoutInflater inflater) {
+        DecorCaptionView DecorCaptionView = null;
+        for (int i = getChildCount() - 1; i >= 0 && DecorCaptionView == null; i--) {
             View view = getChildAt(i);
-            if (view instanceof NonClientDecorView) {
+            if (view instanceof DecorCaptionView) {
                 // The decor was most likely saved from a relaunch - so reuse it.
-                nonClientDecorView = (NonClientDecorView) view;
+                DecorCaptionView = (DecorCaptionView) view;
                 removeViewAt(i);
             }
         }
         final WindowManager.LayoutParams attrs = mWindow.getAttributes();
-        boolean isApplication = attrs.type == TYPE_BASE_APPLICATION ||
+        final boolean isApplication = attrs.type == TYPE_BASE_APPLICATION ||
                 attrs.type == TYPE_APPLICATION;
-        // Only a non floating application window on one of the allowed workspaces can get a non
-        // client decor.
-        final boolean hasNonClientDecor = ActivityManager.StackId.hasWindowDecor(mWorkspaceId);
-        if (!mWindow.isFloating() && isApplication && hasNonClientDecor) {
+        // Only a non floating application window on one of the allowed workspaces can get a caption
+        if (!mWindow.isFloating() && isApplication
+                && ActivityManager.StackId.hasWindowDecor(mStackId)) {
             // Dependent on the brightness of the used title we either use the
             // dark or the light button frame.
-            if (nonClientDecorView == null) {
+            if (DecorCaptionView == null) {
                 Context context = getContext();
                 TypedValue value = new TypedValue();
                 context.getTheme().resolveAttribute(R.attr.colorPrimary, value, true);
                 inflater = inflater.from(context);
                 if (Color.luminance(value.data) < 0.5) {
-                    nonClientDecorView = (NonClientDecorView) inflater.inflate(
-                            R.layout.non_client_decor_dark, null);
+                    DecorCaptionView = (DecorCaptionView) inflater.inflate(
+                            R.layout.decor_caption_dark, null);
                 } else {
-                    nonClientDecorView = (NonClientDecorView) inflater.inflate(
-                            R.layout.non_client_decor_light, null);
+                    DecorCaptionView = (DecorCaptionView) inflater.inflate(
+                            R.layout.decor_caption_light, null);
                 }
             }
-            nonClientDecorView.setPhoneWindow(mWindow,
-                    ActivityManager.StackId.hasWindowDecor(mWorkspaceId),
-                    ActivityManager.StackId.hasWindowShadow(mWorkspaceId));
+            DecorCaptionView.setPhoneWindow(mWindow, true /*showDecor*/);
         } else {
-            nonClientDecorView = null;
+            DecorCaptionView = null;
         }
 
-        // Tell the decor if it has a visible non client decor.
-        enableNonClientDecor(nonClientDecorView != null && hasNonClientDecor);
-        return nonClientDecorView;
+        // Tell the decor if it has a visible caption.
+        enableCaption(DecorCaptionView != null);
+        return DecorCaptionView;
     }
 
     /**
@@ -1652,12 +1649,12 @@
     }
 
     /**
-     * Returns the Id of the workspace which contains this window.
-     * Note that if no workspace can be determined - which usually means that it was not
-     * created for an activity - the fullscreen workspace ID will be returned.
-     * @return Returns the workspace stack id which contains this window.
+     * Returns the Id of the stack which contains this window.
+     * Note that if no stack can be determined - which usually means that it was not
+     * created for an activity - the fullscreen stack ID will be returned.
+     * @return Returns the stack id which contains this window.
      **/
-    private int getWorkspaceId() {
+    private int getStackId() {
         int workspaceId = INVALID_STACK_ID;
         final Window.WindowControllerCallback callback = mWindow.getWindowControllerCallback();
         if (callback != null) {
@@ -1674,12 +1671,12 @@
     }
 
     void clearContentView() {
-        if (mNonClientDecorView != null) {
-            if (mNonClientDecorView.getChildCount() > 1) {
-                mNonClientDecorView.removeViewAt(1);
+        if (mDecorCaptionView != null) {
+            if (mDecorCaptionView.getChildCount() > 1) {
+                mDecorCaptionView.removeViewAt(1);
             }
         } else {
-            // This window doesn't have non client decor, so we need to just remove the
+            // This window doesn't have caption, so we need to just remove the
             // children of the decor view.
             removeAllViews();
         }
@@ -1749,18 +1746,60 @@
         }
     }
 
+    /**
+     * The elevation gets set for the first time and the framework needs to be informed that
+     * the surface layer gets created with the shadow size in mind.
+     */
+    private void initializeElevation() {
+        // TODO(skuhne): Call setMaxElevation here accordingly after b/22668382 got fixed.
+        mAllowUpdateElevation = false;
+        updateElevation();
+    }
+
     private void updateElevation() {
-        if (mNonClientDecorView != null) {
-            mNonClientDecorView.updateElevation();
+        float elevation = 0;
+        final boolean wasAdjustedForStack = mElevationAdjustedForStack;
+        // Do not use a shadow when we are in resizing mode (mBackdropFrameRenderer not null)
+        // since the shadow is bound to the content size and not the target size.
+        if (ActivityManager.StackId.hasWindowShadow(mStackId)
+                && mBackdropFrameRenderer == null) {
+            elevation = hasWindowFocus() ?
+                    DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP : DECOR_SHADOW_UNFOCUSED_HEIGHT_IN_DIP;
+            // TODO(skuhne): Remove this if clause once b/22668382 got fixed.
+            if (!mAllowUpdateElevation) {
+                elevation = DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP;
+            }
+            // Convert the DP elevation into physical pixels.
+            elevation = dipToPx(elevation);
+            mElevationAdjustedForStack = true;
+        } else {
+            mElevationAdjustedForStack = false;
+        }
+
+        // Don't change the elevation if we didn't previously adjust it for the stack it was in
+        // or it didn't change.
+        if ((wasAdjustedForStack || mElevationAdjustedForStack)
+                && getElevation() != elevation) {
+            mWindow.setElevation(elevation);
         }
     }
 
     boolean isShowingCaption() {
-        return mNonClientDecorView != null && mNonClientDecorView.isShowingDecor();
+        return mDecorCaptionView != null && mDecorCaptionView.isCaptionShowing();
     }
 
     int getCaptionHeight() {
-        return isShowingCaption() ? mNonClientDecorView.getDecorCaptionHeight() : 0;
+        return isShowingCaption() ? mDecorCaptionView.getCaptionHeight() : 0;
+    }
+
+    /**
+     * Converts a DIP measure into physical pixels.
+     * @param dip The dip value.
+     * @return Returns the number of pixels.
+     */
+    private float dipToPx(float dip) {
+        return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip,
+                getResources().getDisplayMetrics());
     }
 
     private static class ColorViewState {
diff --git a/core/java/com/android/internal/view/ActionBarPolicy.java b/core/java/com/android/internal/view/ActionBarPolicy.java
index bee59dc..007ab29 100644
--- a/core/java/com/android/internal/view/ActionBarPolicy.java
+++ b/core/java/com/android/internal/view/ActionBarPolicy.java
@@ -19,6 +19,7 @@
 import com.android.internal.R;
 
 import android.content.Context;
+import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.os.Build;
@@ -38,10 +39,29 @@
         mContext = context;
     }
 
+    /**
+     * Returns the maximum number of action buttons that should be permitted within an action
+     * bar/action mode. This will be used to determine how many showAsAction="ifRoom" items can fit.
+     * "always" items can override this.
+     */
     public int getMaxActionButtons() {
-        return mContext.getResources().getInteger(R.integer.max_action_buttons);
+        final Configuration config = mContext.getResources().getConfiguration();
+        final int width = config.screenWidthDp;
+        final int height = config.screenHeightDp;
+        final int smallest = config.smallestScreenWidthDp;
+        if (smallest > 600 || (width > 960 && height > 720) || (width > 720 && height > 960)) {
+            // For values-w600dp, values-sw600dp and values-xlarge.
+            return 5;
+        } else if (width >= 500 || (width > 640 && height > 480) || (width > 480 && height > 640)) {
+            // For values-w500dp and values-large.
+            return 4;
+        } else if (width >= 360) {
+            // For values-w360dp.
+            return 3;
+        } else {
+            return 2;
+        }
     }
-
     public boolean showsOverflowMenuButton() {
         return true;
     }
diff --git a/core/java/com/android/internal/view/IInputMethodClient.aidl b/core/java/com/android/internal/view/IInputMethodClient.aidl
index 89d36ff..81056f2 100644
--- a/core/java/com/android/internal/view/IInputMethodClient.aidl
+++ b/core/java/com/android/internal/view/IInputMethodClient.aidl
@@ -25,7 +25,8 @@
 oneway interface IInputMethodClient {
     void setUsingInputMethod(boolean state);
     void onBindMethod(in InputBindResult res);
-    void onUnbindMethod(int sequence);
+    // unbindReason corresponds to InputMethodClient.UnbindReason.
+    void onUnbindMethod(int sequence, int unbindReason);
     void setActive(boolean active);
     void setUserActionNotificationSequenceNumber(int sequenceNumber);
 }
diff --git a/core/java/com/android/internal/view/InputMethodClient.java b/core/java/com/android/internal/view/InputMethodClient.java
new file mode 100644
index 0000000..a035343
--- /dev/null
+++ b/core/java/com/android/internal/view/InputMethodClient.java
@@ -0,0 +1,60 @@
+/*
+ * 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.internal.view;
+
+import android.annotation.IntDef;
+
+import java.lang.annotation.Retention;
+
+import static java.lang.annotation.RetentionPolicy.SOURCE;
+
+public final class InputMethodClient {
+    public static final int UNBIND_REASON_UNSPECIFIED = 0;
+    public static final int UNBIND_REASON_SWITCH_CLIENT = 1;
+    public static final int UNBIND_REASON_SWITCH_IME = 2;
+    public static final int UNBIND_REASON_DISCONNECT_IME = 3;
+    public static final int UNBIND_REASON_NO_IME = 4;
+    public static final int UNBIND_REASON_SWITCH_IME_FAILED = 5;
+    public static final int UNBIND_REASON_RESET_IME = 6;
+
+    @Retention(SOURCE)
+    @IntDef({UNBIND_REASON_UNSPECIFIED, UNBIND_REASON_SWITCH_CLIENT, UNBIND_REASON_SWITCH_IME,
+            UNBIND_REASON_DISCONNECT_IME, UNBIND_REASON_NO_IME, UNBIND_REASON_SWITCH_IME_FAILED,
+            UNBIND_REASON_RESET_IME})
+    public @interface UnbindReason {}
+
+    public static String getUnbindReason(@UnbindReason final int reason) {
+        switch (reason) {
+            case UNBIND_REASON_UNSPECIFIED:
+                return "UNSPECIFIED";
+            case UNBIND_REASON_SWITCH_CLIENT:
+                return "SWITCH_CLIENT";
+            case UNBIND_REASON_SWITCH_IME:
+                return "SWITCH_IME";
+            case UNBIND_REASON_DISCONNECT_IME:
+                return "DISCONNECT_IME";
+            case UNBIND_REASON_NO_IME:
+                return "NO_IME";
+            case UNBIND_REASON_SWITCH_IME_FAILED:
+                return "SWITCH_IME_FAILED";
+            case UNBIND_REASON_RESET_IME:
+                return "RESET_IME";
+            default:
+                return "Unknown=" + reason;
+        }
+    }
+}
diff --git a/core/java/com/android/internal/widget/DecorCaptionView.java b/core/java/com/android/internal/widget/DecorCaptionView.java
new file mode 100644
index 0000000..e22bd10
--- /dev/null
+++ b/core/java/com/android/internal/widget/DecorCaptionView.java
@@ -0,0 +1,205 @@
+/*
+ * 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.internal.widget;
+
+import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
+
+import android.content.Context;
+import android.os.RemoteException;
+import android.util.AttributeSet;
+import android.view.MotionEvent;
+import android.view.View;
+import android.widget.LinearLayout;
+import android.view.ViewGroup;
+import android.view.ViewOutlineProvider;
+import android.view.Window;
+import android.util.Log;
+
+import com.android.internal.R;
+import com.android.internal.policy.PhoneWindow;
+
+/**
+ * This class represents the special screen elements to control a window on freeform
+ * environment.
+ * As such this class handles the following things:
+ * <ul>
+ * <li>The caption, containing the system buttons like maximize, close and such as well as
+ * allowing the user to drag the window around.</li>
+ * After creating the view, the function
+ * {@link #setPhoneWindow} needs to be called to make
+ * the connection to it's owning PhoneWindow.
+ * Note: At this time the application can change various attributes of the DecorView which
+ * will break things (in settle/unexpected ways):
+ * <ul>
+ * <li>setOutlineProvider</li>
+ * <li>setSurfaceFormat</li>
+ * <li>..</li>
+ * </ul>
+ */
+public class DecorCaptionView extends LinearLayout
+        implements View.OnClickListener, View.OnTouchListener {
+    private final static String TAG = "DecorCaptionView";
+    private PhoneWindow mOwner = null;
+    private boolean mShow = false;
+
+    // True if the window is being dragged.
+    private boolean mDragging = false;
+
+    // True when the left mouse button got released while dragging.
+    private boolean mLeftMouseButtonReleased;
+
+    public DecorCaptionView(Context context) {
+        super(context);
+    }
+
+    public DecorCaptionView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public DecorCaptionView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    public void setPhoneWindow(PhoneWindow owner, boolean show) {
+        mOwner = owner;
+        mShow = show;
+        updateCaptionVisibility();
+        // By changing the outline provider to BOUNDS, the window can remove its
+        // background without removing the shadow.
+        mOwner.getDecorView().setOutlineProvider(ViewOutlineProvider.BOUNDS);
+
+        findViewById(R.id.maximize_window).setOnClickListener(this);
+        findViewById(R.id.close_window).setOnClickListener(this);
+    }
+
+    @Override
+    public boolean onTouch(View v, MotionEvent e) {
+        // Note: There are no mixed events. When a new device gets used (e.g. 1. Mouse, 2. touch)
+        // the old input device events get cancelled first. So no need to remember the kind of
+        // input device we are listening to.
+        switch (e.getActionMasked()) {
+            case MotionEvent.ACTION_DOWN:
+                if (!mShow) {
+                    // When there is no caption we should not react to anything.
+                    return false;
+                }
+                // A drag action is started if we aren't dragging already and the starting event is
+                // either a left mouse button or any other input device.
+                if (!mDragging &&
+                        (e.getToolType(e.getActionIndex()) != MotionEvent.TOOL_TYPE_MOUSE ||
+                                (e.getButtonState() & MotionEvent.BUTTON_PRIMARY) != 0)) {
+                    mDragging = true;
+                    mLeftMouseButtonReleased = false;
+                    startMovingTask(e.getRawX(), e.getRawY());
+                }
+                break;
+
+            case MotionEvent.ACTION_MOVE:
+                if (mDragging && !mLeftMouseButtonReleased) {
+                    if (e.getToolType(e.getActionIndex()) == MotionEvent.TOOL_TYPE_MOUSE &&
+                            (e.getButtonState() & MotionEvent.BUTTON_PRIMARY) == 0) {
+                        // There is no separate mouse button up call and if the user mixes mouse
+                        // button drag actions, we stop dragging once he releases the button.
+                        mLeftMouseButtonReleased = true;
+                        break;
+                    }
+                }
+                break;
+
+            case MotionEvent.ACTION_UP:
+            case MotionEvent.ACTION_CANCEL:
+                if (!mDragging) {
+                    break;
+                }
+                // Abort the ongoing dragging.
+                mDragging = false;
+                return true;
+        }
+        return mDragging;
+    }
+
+    /**
+     * The phone window configuration has changed and the caption needs to be updated.
+     * @param show True if the caption should be shown.
+     */
+    public void onConfigurationChanged(boolean show) {
+        mShow = show;
+        updateCaptionVisibility();
+    }
+
+    @Override
+    public void onClick(View view) {
+        if (view.getId() == R.id.maximize_window) {
+            maximizeWindow();
+        } else if (view.getId() == R.id.close_window) {
+            mOwner.dispatchOnWindowDismissed(true /*finishTask*/);
+        }
+    }
+
+    @Override
+    public void addView(View child, int index, ViewGroup.LayoutParams params) {
+        // Make sure that we never get more then one client area in our view.
+        if (index >= 2 || getChildCount() >= 2) {
+            throw new IllegalStateException("DecorCaptionView can only handle 1 client view");
+        }
+        super.addView(child, index, params);
+    }
+
+    /**
+     * Determine if the workspace is entirely covered by the window.
+     * @return Returns true when the window is filling the entire screen/workspace.
+     **/
+    private boolean isFillingScreen() {
+        return (0 != ((getWindowSystemUiVisibility() | getSystemUiVisibility()) &
+                (View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
+                        View.SYSTEM_UI_FLAG_IMMERSIVE | View.SYSTEM_UI_FLAG_LOW_PROFILE)));
+    }
+
+    /**
+     * Updates the visibility of the caption.
+     **/
+    private void updateCaptionVisibility() {
+        // Don't show the caption if the window has e.g. entered full screen.
+        boolean invisible = isFillingScreen() || !mShow;
+        View caption = getChildAt(0);
+        caption.setVisibility(invisible ? GONE : VISIBLE);
+        caption.setOnTouchListener(this);
+    }
+
+    /**
+     * Maximize the window by moving it to the maximized workspace stack.
+     **/
+    private void maximizeWindow() {
+        Window.WindowControllerCallback callback = mOwner.getWindowControllerCallback();
+        if (callback != null) {
+            try {
+                callback.changeWindowStack(FULLSCREEN_WORKSPACE_STACK_ID);
+            } catch (RemoteException ex) {
+                Log.e(TAG, "Cannot change task workspace.");
+            }
+        }
+    }
+
+    public boolean isCaptionShowing() {
+        return mShow;
+    }
+
+    public int getCaptionHeight() {
+        final View caption = getChildAt(0);
+        return (caption != null) ? caption.getHeight() : 0;
+    }
+}
diff --git a/core/java/com/android/internal/widget/NonClientDecorView.java b/core/java/com/android/internal/widget/NonClientDecorView.java
deleted file mode 100644
index 33b8e05..0000000
--- a/core/java/com/android/internal/widget/NonClientDecorView.java
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * 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.internal.widget;
-
-import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
-
-import android.content.Context;
-import android.os.RemoteException;
-import android.util.AttributeSet;
-import android.view.MotionEvent;
-import android.view.View;
-import android.widget.LinearLayout;
-import android.view.ViewGroup;
-import android.view.ViewOutlineProvider;
-import android.view.Window;
-import android.util.Log;
-import android.util.TypedValue;
-
-import com.android.internal.R;
-import com.android.internal.policy.DecorView;
-import com.android.internal.policy.PhoneWindow;
-
-/**
- * This class represents the special screen elements to control a window on free form
- * environment. All thse screen elements are added in the "non client area" which is the area of
- * the window which is handled by the OS and not the application.
- * As such this class handles the following things:
- * <ul>
- * <li>The caption, containing the system buttons like maximize, close and such as well as
- * allowing the user to drag the window around.</li>
- * <li>The shadow - which is changing dependent on the window focus.</li>
- * <li>The border around the client area (if there is one).</li>
- * <li>The resize handles which allow to resize the window.</li>
- * </ul>
- * After creating the view, the function
- * {@link #setPhoneWindow} needs to be called to make
- * the connection to it's owning PhoneWindow.
- * Note: At this time the application can change various attributes of the DecorView which
- * will break things (in settle/unexpected ways):
- * <ul>
- * <li>setElevation</li>
- * <li>setOutlineProvider</li>
- * <li>setSurfaceFormat</li>
- * <li>..</li>
- * </ul>
- * This will be mitigated once b/22527834 will be addressed.
- */
-public class NonClientDecorView extends LinearLayout
-        implements View.OnClickListener, View.OnTouchListener {
-    private final static String TAG = "NonClientDecorView";
-    // The height of a window which has focus in DIP.
-    private final int DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP = 20;
-    // The height of a window which has not in DIP.
-    private final int DECOR_SHADOW_UNFOCUSED_HEIGHT_IN_DIP = 5;
-    private PhoneWindow mOwner = null;
-    private boolean mWindowHasShadow = false;
-    private boolean mShowDecor = false;
-
-    // True if the window is being dragged.
-    private boolean mDragging = false;
-
-    // True when the left mouse button got released while dragging.
-    private boolean mLeftMouseButtonReleased;
-
-    // True if this window is resizable (which is currently only true when the decor is shown).
-    public boolean mVisible = false;
-
-    // The current focus state of the window for updating the window elevation.
-    private boolean mWindowHasFocus = true;
-
-    // Cludge to address b/22668382: Set the shadow size to the maximum so that the layer
-    // size calculation takes the shadow size into account. We set the elevation currently
-    // to max until the first layout command has been executed.
-    private boolean mAllowUpdateElevation = false;
-
-    public NonClientDecorView(Context context) {
-        super(context);
-    }
-
-    public NonClientDecorView(Context context, AttributeSet attrs) {
-        super(context, attrs);
-    }
-
-    public NonClientDecorView(Context context, AttributeSet attrs, int defStyle) {
-        super(context, attrs, defStyle);
-    }
-
-    public void setPhoneWindow(PhoneWindow owner, boolean showDecor, boolean windowHasShadow) {
-        mOwner = owner;
-        mWindowHasShadow = windowHasShadow;
-        mShowDecor = showDecor;
-        updateCaptionVisibility();
-        if (mWindowHasShadow) {
-            initializeElevation();
-        }
-        // By changing the outline provider to BOUNDS, the window can remove its
-        // background without removing the shadow.
-        mOwner.getDecorView().setOutlineProvider(ViewOutlineProvider.BOUNDS);
-
-        findViewById(R.id.maximize_window).setOnClickListener(this);
-        findViewById(R.id.close_window).setOnClickListener(this);
-    }
-
-    @Override
-    public boolean onTouch(View v, MotionEvent e) {
-        // Note: There are no mixed events. When a new device gets used (e.g. 1. Mouse, 2. touch)
-        // the old input device events get cancelled first. So no need to remember the kind of
-        // input device we are listening to.
-        switch (e.getActionMasked()) {
-            case MotionEvent.ACTION_DOWN:
-                if (!mShowDecor) {
-                    // When there is no decor we should not react to anything.
-                    return false;
-                }
-                // A drag action is started if we aren't dragging already and the starting event is
-                // either a left mouse button or any other input device.
-                if (!mDragging &&
-                        (e.getToolType(e.getActionIndex()) != MotionEvent.TOOL_TYPE_MOUSE ||
-                                (e.getButtonState() & MotionEvent.BUTTON_PRIMARY) != 0)) {
-                    mDragging = true;
-                    mLeftMouseButtonReleased = false;
-                    startMovingTask(e.getRawX(), e.getRawY());
-                }
-                break;
-
-            case MotionEvent.ACTION_MOVE:
-                if (mDragging && !mLeftMouseButtonReleased) {
-                    if (e.getToolType(e.getActionIndex()) == MotionEvent.TOOL_TYPE_MOUSE &&
-                            (e.getButtonState() & MotionEvent.BUTTON_PRIMARY) == 0) {
-                        // There is no separate mouse button up call and if the user mixes mouse
-                        // button drag actions, we stop dragging once he releases the button.
-                        mLeftMouseButtonReleased = true;
-                        break;
-                    }
-                }
-                break;
-
-            case MotionEvent.ACTION_UP:
-            case MotionEvent.ACTION_CANCEL:
-                if (!mDragging) {
-                    break;
-                }
-                // Abort the ongoing dragging.
-                mDragging = false;
-                return true;
-        }
-        return mDragging;
-    }
-
-    /**
-     * The phone window configuration has changed and the decor needs to be updated.
-     * @param showDecor True if the decor should be shown.
-     * @param windowHasShadow True when the window should show a shadow.
-     **/
-    public void onConfigurationChanged(boolean showDecor, boolean windowHasShadow) {
-        mShowDecor = showDecor;
-        updateCaptionVisibility();
-        if (windowHasShadow != mWindowHasShadow) {
-            mWindowHasShadow = windowHasShadow;
-            initializeElevation();
-        }
-    }
-
-    @Override
-    public void onClick(View view) {
-        if (view.getId() == R.id.maximize_window) {
-            maximizeWindow();
-        } else if (view.getId() == R.id.close_window) {
-            mOwner.dispatchOnWindowDismissed(true /*finishTask*/);
-        }
-    }
-
-    @Override
-    public void onWindowFocusChanged(boolean hasWindowFocus) {
-        mWindowHasFocus = hasWindowFocus;
-        updateElevation();
-        super.onWindowFocusChanged(hasWindowFocus);
-    }
-
-    @Override
-    protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
-        // If the application changed its SystemUI metrics, we might also have to adapt
-        // our shadow elevation.
-        updateElevation();
-        mAllowUpdateElevation = true;
-
-        super.onLayout(changed, left, top, right, bottom);
-    }
-
-    @Override
-    public void addView(View child, int index, ViewGroup.LayoutParams params) {
-        // Make sure that we never get more then one client area in our view.
-        if (index >= 2 || getChildCount() >= 2) {
-            throw new IllegalStateException("NonClientDecorView can only handle 1 client view");
-        }
-        super.addView(child, index, params);
-    }
-
-    /**
-     * Determine if the workspace is entirely covered by the window.
-     * @return Returns true when the window is filling the entire screen/workspace.
-     **/
-    private boolean isFillingScreen() {
-        return (0 != ((getWindowSystemUiVisibility() | getSystemUiVisibility()) &
-                (View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION |
-                        View.SYSTEM_UI_FLAG_IMMERSIVE | View.SYSTEM_UI_FLAG_LOW_PROFILE)));
-    }
-
-    /**
-     * Updates the visibility of the caption.
-     **/
-    private void updateCaptionVisibility() {
-        // Don't show the decor if the window has e.g. entered full screen.
-        boolean invisible = isFillingScreen() || !mShowDecor;
-        View caption = getChildAt(0);
-        caption.setVisibility(invisible ? GONE : VISIBLE);
-        caption.setOnTouchListener(this);
-        mVisible = !invisible;
-    }
-
-    /**
-     * The elevation gets set for the first time and the framework needs to be informed that
-     * the surface layer gets created with the shadow size in mind.
-     **/
-    private void initializeElevation() {
-        // TODO(skuhne): Call setMaxElevation here accordingly after b/22668382 got fixed.
-        mAllowUpdateElevation = false;
-        if (mWindowHasShadow) {
-            updateElevation();
-        } else {
-            mOwner.setElevation(0);
-        }
-    }
-
-    /**
-     * The shadow height gets controlled by the focus to visualize highlighted windows.
-     * Note: This will overwrite application elevation properties.
-     * Note: Windows which have (temporarily) changed their attributes to cover the SystemUI
-     *       will get no shadow as they are expected to be "full screen".
-     **/
-    public void updateElevation() {
-        float elevation = 0;
-        // Do not use a shadow when we are in resizing mode (mRenderer not null) since the shadow
-        // is bound to the content size and not the target size.
-        if (mWindowHasShadow
-                && ((DecorView) mOwner.getDecorView()).mBackdropFrameRenderer == null) {
-            boolean fill = isFillingScreen();
-            elevation = fill ? 0 :
-                    (mWindowHasFocus ? DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP :
-                            DECOR_SHADOW_UNFOCUSED_HEIGHT_IN_DIP);
-            // TODO(skuhne): Remove this if clause once b/22668382 got fixed.
-            if (!mAllowUpdateElevation && !fill) {
-                elevation = DECOR_SHADOW_FOCUSED_HEIGHT_IN_DIP;
-            }
-            // Convert the DP elevation into physical pixels.
-            elevation = dipToPx(elevation);
-        }
-        // Don't change the elevation if it didn't change since it can require some time.
-        if (mOwner.getDecorView().getElevation() != elevation) {
-            mOwner.setElevation(elevation);
-        }
-    }
-
-    /**
-     * Converts a DIP measure into physical pixels.
-     * @param dip The dip value.
-     * @return Returns the number of pixels.
-     */
-    private float dipToPx(float dip) {
-        return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dip,
-                getResources().getDisplayMetrics());
-    }
-
-    /**
-     * Maximize the window by moving it to the maximized workspace stack.
-     **/
-    private void maximizeWindow() {
-        Window.WindowControllerCallback callback = mOwner.getWindowControllerCallback();
-        if (callback != null) {
-            try {
-                callback.changeWindowStack(FULLSCREEN_WORKSPACE_STACK_ID);
-            } catch (RemoteException ex) {
-                Log.e(TAG, "Cannot change task workspace.");
-            }
-        }
-    }
-
-    public boolean isShowingDecor() {
-        return mShowDecor;
-    }
-
-    public int getDecorCaptionHeight() {
-        final View caption = getChildAt(0);
-        return (caption != null) ? caption.getHeight() : 0;
-    }
-}
diff --git a/core/jni/android_util_PathParser.cpp b/core/jni/android_util_PathParser.cpp
index 245aa0f..0927120 100644
--- a/core/jni/android_util_PathParser.cpp
+++ b/core/jni/android_util_PathParser.cpp
@@ -18,19 +18,22 @@
 
 #include <PathParser.h>
 #include <SkPath.h>
+#include <utils/VectorDrawableUtils.h>
 
 #include <android/log.h>
 #include "core_jni_helpers.h"
 
 namespace android {
 
+using namespace uirenderer;
+
 static bool parseStringForPath(JNIEnv* env, jobject, jlong skPathHandle, jstring inputPathStr,
         jint strLength) {
     const char* pathString = env->GetStringUTFChars(inputPathStr, NULL);
     SkPath* skPath = reinterpret_cast<SkPath*>(skPathHandle);
 
-    android::uirenderer::PathParser::ParseResult result;
-    android::uirenderer::PathParser::parseStringForSkPath(skPath, &result, pathString, strLength);
+    PathParser::ParseResult result;
+    PathParser::parseStringForSkPath(skPath, &result, pathString, strLength);
     env->ReleaseStringUTFChars(inputPathStr, pathString);
     if (result.failureOccurred) {
         ALOGE(result.failureMessage.c_str());
@@ -38,8 +41,74 @@
     return !result.failureOccurred;
 }
 
+static long createEmptyPathData(JNIEnv*, jobject) {
+    PathData* pathData = new PathData();
+    return reinterpret_cast<jlong>(pathData);
+}
+
+static long createPathData(JNIEnv*, jobject, jlong pathDataPtr) {
+    PathData* pathData = reinterpret_cast<PathData*>(pathDataPtr);
+    PathData* newPathData = new PathData(*pathData);
+    return reinterpret_cast<jlong>(newPathData);
+}
+
+static long createPathDataFromStringPath(JNIEnv* env, jobject, jstring inputStr, jint strLength) {
+    const char* pathString = env->GetStringUTFChars(inputStr, NULL);
+    PathData* pathData = new PathData();
+    PathParser::ParseResult result;
+    PathParser::getPathDataFromString(pathData, &result, pathString, strLength);
+    env->ReleaseStringUTFChars(inputStr, pathString);
+    if (!result.failureOccurred) {
+        return reinterpret_cast<jlong>(pathData);
+    } else {
+        delete pathData;
+        ALOGE(result.failureMessage.c_str());
+        return NULL;
+    }
+}
+
+static bool interpolatePathData(JNIEnv*, jobject, jlong outPathDataPtr, jlong fromPathDataPtr,
+        jlong toPathDataPtr, jfloat fraction) {
+    PathData* outPathData = reinterpret_cast<PathData*>(outPathDataPtr);
+    PathData* fromPathData = reinterpret_cast<PathData*>(fromPathDataPtr);
+    PathData* toPathData = reinterpret_cast<PathData*>(toPathDataPtr);
+    return VectorDrawableUtils::interpolatePathData(outPathData, *fromPathData,
+            *toPathData, fraction);
+}
+
+static void deletePathData(JNIEnv*, jobject, jlong pathDataHandle) {
+    PathData* pathData = reinterpret_cast<PathData*>(pathDataHandle);
+    delete pathData;
+}
+
+static bool canMorphPathData(JNIEnv*, jobject, jlong fromPathDataPtr, jlong toPathDataPtr) {
+    PathData* fromPathData = reinterpret_cast<PathData*>(fromPathDataPtr);
+    PathData* toPathData = reinterpret_cast<PathData*>(toPathDataPtr);
+    return VectorDrawableUtils::canMorph(*fromPathData, *toPathData);
+}
+
+static void setPathData(JNIEnv*, jobject, jlong outPathDataPtr, jlong fromPathDataPtr) {
+    PathData* fromPathData = reinterpret_cast<PathData*>(fromPathDataPtr);
+    PathData* outPathData = reinterpret_cast<PathData*>(outPathDataPtr);
+    *outPathData = *fromPathData;
+}
+
+static void setSkPathFromPathData(JNIEnv*, jobject, jlong outPathPtr, jlong pathDataPtr) {
+    PathData* pathData = reinterpret_cast<PathData*>(pathDataPtr);
+    SkPath* skPath = reinterpret_cast<SkPath*>(outPathPtr);
+    VectorDrawableUtils::verbsToPath(skPath, *pathData);
+}
+
 static const JNINativeMethod gMethods[] = {
-    {"nParseStringForPath", "(JLjava/lang/String;I)Z", (void*)parseStringForPath}
+    {"nParseStringForPath", "(JLjava/lang/String;I)Z", (void*)parseStringForPath},
+    {"nCreateEmptyPathData", "!()J", (void*)createEmptyPathData},
+    {"nCreatePathData", "!(J)J", (void*)createPathData},
+    {"nCreatePathDataFromString", "(Ljava/lang/String;I)J", (void*)createPathDataFromStringPath},
+    {"nInterpolatePathData", "!(JJJF)Z", (void*)interpolatePathData},
+    {"nFinalize", "!(J)V", (void*)deletePathData},
+    {"nCanMorph", "!(JJ)Z", (void*)canMorphPathData},
+    {"nSetPathData", "!(JJ)V", (void*)setPathData},
+    {"nCreatePathFromPathData", "!(JJ)V", (void*)setSkPathFromPathData},
 };
 
 int register_android_util_PathParser(JNIEnv* env) {
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 3f1be456..73c7487 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -21,6 +21,7 @@
 #include <linux/fs.h>
 
 #include <list>
+#include <sstream>
 #include <string>
 
 #include <fcntl.h>
@@ -74,8 +75,10 @@
   MOUNT_EXTERNAL_WRITE = 3,
 };
 
-static void RuntimeAbort(JNIEnv* env) {
-  env->FatalError("RuntimeAbort");
+static void RuntimeAbort(JNIEnv* env, int line, const char* msg) {
+  std::ostringstream oss;
+  oss << __FILE__ << ":" << line << ": " << msg;
+  env->FatalError(oss.str().c_str());
 }
 
 // This signal handler is for zygote mode, since the zygote must reap its children
@@ -169,12 +172,11 @@
 
   ScopedIntArrayRO gids(env, javaGids);
   if (gids.get() == NULL) {
-      RuntimeAbort(env);
+    RuntimeAbort(env, __LINE__, "Getting gids int array failed");
   }
   int rc = setgroups(gids.size(), reinterpret_cast<const gid_t*>(&gids[0]));
   if (rc == -1) {
-    ALOGE("setgroups failed");
-    RuntimeAbort(env);
+    RuntimeAbort(env, __LINE__, "setgroups failed");
   }
 }
 
@@ -194,8 +196,7 @@
     ScopedLocalRef<jobject> javaRlimitObject(env, env->GetObjectArrayElement(javaRlimits, i));
     ScopedIntArrayRO javaRlimit(env, reinterpret_cast<jintArray>(javaRlimitObject.get()));
     if (javaRlimit.size() != 3) {
-      ALOGE("rlimits array must have a second dimension of size 3");
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "rlimits array must have a second dimension of size 3");
     }
 
     rlim.rlim_cur = javaRlimit[1];
@@ -205,7 +206,7 @@
     if (rc == -1) {
       ALOGE("setrlimit(%d, {%ld, %ld}) failed", javaRlimit[0], rlim.rlim_cur,
             rlim.rlim_max);
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "setrlimit failed");
     }
   }
 }
@@ -216,8 +217,7 @@
 static void EnableKeepCapabilities(JNIEnv* env) {
   int rc = prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);
   if (rc == -1) {
-    ALOGE("prctl(PR_SET_KEEPCAPS) failed");
-    RuntimeAbort(env);
+    RuntimeAbort(env, __LINE__, "prctl(PR_SET_KEEPCAPS) failed");
   }
 }
 
@@ -229,8 +229,7 @@
         ALOGE("prctl(PR_CAPBSET_DROP) failed with EINVAL. Please verify "
               "your kernel is compiled with file capabilities support");
       } else {
-        ALOGE("prctl(PR_CAPBSET_DROP) failed");
-        RuntimeAbort(env);
+        RuntimeAbort(env, __LINE__, "prctl(PR_CAPBSET_DROP) failed");
       }
     }
   }
@@ -251,7 +250,7 @@
 
   if (capset(&capheader, &capdata[0]) == -1) {
     ALOGE("capset(%" PRId64 ", %" PRId64 ") failed", permitted, effective);
-    RuntimeAbort(env);
+    RuntimeAbort(env, __LINE__, "capset failed");
   }
 }
 
@@ -259,7 +258,7 @@
   errno = -set_sched_policy(0, SP_DEFAULT);
   if (errno != 0) {
     ALOGE("set_sched_policy(0, SP_DEFAULT) failed");
-    RuntimeAbort(env);
+    RuntimeAbort(env, __LINE__, "set_sched_policy(0, SP_DEFAULT) failed");
   }
 }
 
@@ -370,8 +369,7 @@
   jsize count = env->GetArrayLength(fdsToClose);
   ScopedIntArrayRO ar(env, fdsToClose);
   if (ar.get() == NULL) {
-      ALOGE("Bad fd array");
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "Bad fd array");
   }
   jsize i;
   int devnull;
@@ -379,13 +377,13 @@
     devnull = open("/dev/null", O_RDWR);
     if (devnull < 0) {
       ALOGE("Failed to open /dev/null: %s", strerror(errno));
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "Failed to open /dev/null");
       continue;
     }
     ALOGV("Switching descriptor %d to /dev/null: %s", ar[i], strerror(errno));
     if (dup2(devnull, ar[i]) < 0) {
       ALOGE("Failed dup2() on descriptor %d: %s", ar[i], strerror(errno));
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "Failed dup2()");
     }
     close(devnull);
   }
@@ -493,8 +491,7 @@
         // FUSE hasn't been created yet by init.
         // In either case, continue without external storage.
       } else {
-        ALOGE("Cannot continue without emulated storage");
-        RuntimeAbort(env);
+        RuntimeAbort(env, __LINE__, "Cannot continue without emulated storage");
       }
     }
 
@@ -522,13 +519,13 @@
     int rc = setresgid(gid, gid, gid);
     if (rc == -1) {
       ALOGE("setresgid(%d) failed: %s", gid, strerror(errno));
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "setresgid failed");
     }
 
     rc = setresuid(uid, uid, uid);
     if (rc == -1) {
       ALOGE("setresuid(%d) failed: %s", uid, strerror(errno));
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "setresuid failed");
     }
 
     if (NeedsNoRandomizeWorkaround()) {
@@ -550,8 +547,7 @@
         se_info = new ScopedUtfChars(env, java_se_info);
         se_info_c_str = se_info->c_str();
         if (se_info_c_str == NULL) {
-          ALOGE("se_info_c_str == NULL");
-          RuntimeAbort(env);
+          RuntimeAbort(env, __LINE__, "se_info_c_str == NULL");
         }
     }
     const char* se_name_c_str = NULL;
@@ -560,15 +556,14 @@
         se_name = new ScopedUtfChars(env, java_se_name);
         se_name_c_str = se_name->c_str();
         if (se_name_c_str == NULL) {
-          ALOGE("se_name_c_str == NULL");
-          RuntimeAbort(env);
+          RuntimeAbort(env, __LINE__, "se_name_c_str == NULL");
         }
     }
     rc = selinux_android_setcontext(uid, is_system_server, se_info_c_str, se_name_c_str);
     if (rc == -1) {
       ALOGE("selinux_android_setcontext(%d, %d, \"%s\", \"%s\") failed", uid,
             is_system_server, se_info_c_str, se_name_c_str);
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "selinux_android_setcontext failed");
     }
 
     // Make it easier to debug audit logs by setting the main thread's name to the
@@ -588,8 +583,7 @@
     env->CallStaticVoidMethod(gZygoteClass, gCallPostForkChildHooks, debug_flags,
                               is_system_server ? NULL : instructionSet);
     if (env->ExceptionCheck()) {
-      ALOGE("Error calling post fork hooks.");
-      RuntimeAbort(env);
+      RuntimeAbort(env, __LINE__, "Error calling post fork hooks.");
     }
   } else if (pid > 0) {
     // the parent process
@@ -641,7 +635,7 @@
       int status;
       if (waitpid(pid, &status, WNOHANG) == pid) {
           ALOGE("System server process %d has died. Restarting Zygote!", pid);
-          RuntimeAbort(env);
+          RuntimeAbort(env, __LINE__, "System server process has died. Restarting Zygote!");
       }
   }
   return pid;
diff --git a/core/res/res/drawable/non_client_decor_title.xml b/core/res/res/drawable/decor_caption_title.xml
similarity index 84%
rename from core/res/res/drawable/non_client_decor_title.xml
rename to core/res/res/drawable/decor_caption_title.xml
index e50daea..591605d3 100644
--- a/core/res/res/drawable/non_client_decor_title.xml
+++ b/core/res/res/drawable/decor_caption_title.xml
@@ -16,6 +16,6 @@
 
 <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:state_window_focused="true"
-          android:drawable="@drawable/non_client_decor_title_focused" />
-    <item android:drawable="@drawable/non_client_decor_title_unfocused" />
+          android:drawable="@drawable/decor_caption_title_focused" />
+    <item android:drawable="@drawable/decor_caption_title_unfocused" />
 </selector>
diff --git a/core/res/res/drawable/non_client_decor_title_focused.xml b/core/res/res/drawable/decor_caption_title_focused.xml
similarity index 100%
rename from core/res/res/drawable/non_client_decor_title_focused.xml
rename to core/res/res/drawable/decor_caption_title_focused.xml
diff --git a/core/res/res/drawable/non_client_decor_title_unfocused.xml b/core/res/res/drawable/decor_caption_title_unfocused.xml
similarity index 100%
rename from core/res/res/drawable/non_client_decor_title_unfocused.xml
rename to core/res/res/drawable/decor_caption_title_unfocused.xml
diff --git a/core/res/res/layout/non_client_decor_dark.xml b/core/res/res/layout/decor_caption_dark.xml
similarity index 90%
rename from core/res/res/layout/non_client_decor_dark.xml
rename to core/res/res/layout/decor_caption_dark.xml
index 40b8960..86d68af 100644
--- a/core/res/res/layout/non_client_decor_dark.xml
+++ b/core/res/res/layout/decor_caption_dark.xml
@@ -17,7 +17,7 @@
 */
 -->
 
-<com.android.internal.widget.NonClientDecorView xmlns:android="http://schemas.android.com/apk/res/android"
+<com.android.internal.widget.DecorCaptionView xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -26,7 +26,7 @@
         android:layout_width="match_parent"
         android:layout_gravity="end"
         android:layout_height="wrap_content"
-        android:background="@drawable/non_client_decor_title"
+        android:background="@drawable/decor_caption_title"
         android:focusable="false"
         android:descendantFocusability="blocksDescendants" >
         <LinearLayout
@@ -53,4 +53,4 @@
             android:contentDescription="@string/close_button_text"
             android:background="@drawable/decor_close_button_dark" />
     </LinearLayout>
-</com.android.internal.widget.NonClientDecorView>
+</com.android.internal.widget.DecorCaptionView>
diff --git a/core/res/res/layout/non_client_decor_light.xml b/core/res/res/layout/decor_caption_light.xml
similarity index 90%
rename from core/res/res/layout/non_client_decor_light.xml
rename to core/res/res/layout/decor_caption_light.xml
index c75d526..ee03545 100644
--- a/core/res/res/layout/non_client_decor_light.xml
+++ b/core/res/res/layout/decor_caption_light.xml
@@ -17,7 +17,7 @@
 */
 -->
 
-<com.android.internal.widget.NonClientDecorView xmlns:android="http://schemas.android.com/apk/res/android"
+<com.android.internal.widget.DecorCaptionView xmlns:android="http://schemas.android.com/apk/res/android"
     android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -26,7 +26,7 @@
         android:layout_width="match_parent"
         android:layout_gravity="end"
         android:layout_height="wrap_content"
-        android:background="@drawable/non_client_decor_title"
+        android:background="@drawable/decor_caption_title"
         android:focusable="false"
         android:descendantFocusability="blocksDescendants" >
         <LinearLayout
@@ -53,4 +53,4 @@
             android:contentDescription="@string/close_button_text"
             android:background="@drawable/decor_close_button_light" />
     </LinearLayout>
-</com.android.internal.widget.NonClientDecorView>
+</com.android.internal.widget.DecorCaptionView>
diff --git a/core/res/res/values-sw600dp/dimens.xml b/core/res/res/values-sw600dp/dimens.xml
index 94e9c4e..9c45c12 100644
--- a/core/res/res/values-sw600dp/dimens.xml
+++ b/core/res/res/values-sw600dp/dimens.xml
@@ -22,10 +22,6 @@
     <dimen name="thumbnail_width">360dp</dimen>
     <!-- The height that is used when creating thumbnails of applications. -->
     <dimen name="thumbnail_height">360dp</dimen>
-    <!-- The maximum number of action buttons that should be permitted within
-         an action bar/action mode. This will be used to determine how many
-         showAsAction="ifRoom" items can fit. "always" items can override this. -->
-    <integer name="max_action_buttons">5</integer>
     <!-- Default height of an action bar. -->
     <dimen name="action_bar_default_height">56dip</dimen>
     <!-- Vertical padding around action bar icons. -->
@@ -88,7 +84,7 @@
     <!-- Size of the generic status lines keyguard's status view  -->
     <dimen name="kg_status_line_font_size">16sp</dimen>
 
-    <!-- Top margin for the clock view --> 
+    <!-- Top margin for the clock view -->
     <dimen name="kg_clock_top_margin">0dp</dimen>
 
     <!-- Size of margin on the right of keyguard's status view -->
diff --git a/core/res/res/values-w360dp/dimens.xml b/core/res/res/values-w360dp/dimens.xml
deleted file mode 100644
index 0f5d656..0000000
--- a/core/res/res/values-w360dp/dimens.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
-** Copyright 2011, 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>
-    <!-- The maximum number of action buttons that should be permitted within
-         an action bar/action mode. This will be used to determine how many
-         showAsAction="ifRoom" items can fit. "always" items can override this. -->
-    <integer name="max_action_buttons">3</integer>
-</resources>
diff --git a/core/res/res/values-w500dp/dimens.xml b/core/res/res/values-w500dp/dimens.xml
deleted file mode 100644
index 68841ca..0000000
--- a/core/res/res/values-w500dp/dimens.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
-** Copyright 2011, 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>
-    <!-- The maximum number of action buttons that should be permitted within
-         an action bar/action mode. This will be used to determine how many
-         showAsAction="ifRoom" items can fit. "always" items can override this. -->
-    <integer name="max_action_buttons">4</integer>
-</resources>
diff --git a/core/res/res/values-w600dp/dimens.xml b/core/res/res/values-w600dp/dimens.xml
deleted file mode 100644
index 83c45b5..0000000
--- a/core/res/res/values-w600dp/dimens.xml
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-/*
-** Copyright 2011, 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>
-    <!-- The maximum number of action buttons that should be permitted within
-         an action bar/action mode. This will be used to determine how many
-         showAsAction="ifRoom" items can fit. "always" items can override this. -->
-    <integer name="max_action_buttons">5</integer>
-</resources>
diff --git a/core/res/res/values/attrs.xml b/core/res/res/values/attrs.xml
index 0f817f3..04f4fc2 100644
--- a/core/res/res/values/attrs.xml
+++ b/core/res/res/values/attrs.xml
@@ -4248,7 +4248,8 @@
         <attr name="autoLink" />
         <!-- If set to false, keeps the movement method from being set
              to the link movement method even if autoLink causes links
-             to be found. -->
+             to be found or the input text contains a
+             {@link android.text.style.ClickableSpan ClickableSpan}. -->
         <attr name="linksClickable" format="boolean" />
         <!-- If set, specifies that this TextView has a numeric input method.
              The default is false.
diff --git a/core/res/res/values/dimens.xml b/core/res/res/values/dimens.xml
index 28756f5..01daf26 100644
--- a/core/res/res/values/dimens.xml
+++ b/core/res/res/values/dimens.xml
@@ -25,10 +25,7 @@
     <!-- The standard size (both width and height) of an application icon that
          will be displayed in the app launcher and elsewhere. -->
     <dimen name="app_icon_size">48dip</dimen>
-    <!-- The maximum number of action buttons that should be permitted within
-         an action bar/action mode. This will be used to determine how many
-         showAsAction="ifRoom" items can fit. "always" items can override this. -->
-    <integer name="max_action_buttons">2</integer>
+
     <dimen name="toast_y_offset">64dip</dimen>
     <!-- Height of the status bar -->
     <dimen name="status_bar_height">24dp</dimen>
diff --git a/core/res/res/values/symbols.xml b/core/res/res/values/symbols.xml
index e8f6b46..7ce9d8d 100644
--- a/core/res/res/values/symbols.xml
+++ b/core/res/res/values/symbols.xml
@@ -401,7 +401,6 @@
   <java-symbol type="integer" name="db_connection_pool_size" />
   <java-symbol type="integer" name="db_journal_size_limit" />
   <java-symbol type="integer" name="db_wal_autocheckpoint" />
-  <java-symbol type="integer" name="max_action_buttons" />
   <java-symbol type="integer" name="config_soundEffectVolumeDb" />
   <java-symbol type="integer" name="config_lockSoundVolumeDb" />
   <java-symbol type="integer" name="config_multiuserMaximumUsers" />
@@ -1958,9 +1957,9 @@
   <java-symbol type="id" name="maximize_window" />
   <java-symbol type="id" name="close_window" />
   <java-symbol type="id" name="client_decor_placeholder" />
-  <java-symbol type="layout" name="non_client_decor_light" />
-  <java-symbol type="layout" name="non_client_decor_dark" />
-  <java-symbol type="drawable" name="non_client_decor_title_focused" />
+  <java-symbol type="layout" name="decor_caption_light" />
+  <java-symbol type="layout" name="decor_caption_dark" />
+  <java-symbol type="drawable" name="decor_caption_title_focused" />
 
   <!-- From TelephonyProvider -->
   <java-symbol type="xml" name="apns" />
diff --git a/graphics/java/android/graphics/drawable/VectorDrawable.java b/graphics/java/android/graphics/drawable/VectorDrawable.java
index 1dc685c..f630055e 100644
--- a/graphics/java/android/graphics/drawable/VectorDrawable.java
+++ b/graphics/java/android/graphics/drawable/VectorDrawable.java
@@ -1361,7 +1361,7 @@
      * Common Path information for clip path and normal path.
      */
     private static abstract class VPath implements VObject {
-        protected PathParser.PathDataNode[] mNodes = null;
+        protected PathParser.PathData mPathData = null;
         String mPathName;
         int mChangingConfigurations;
 
@@ -1372,7 +1372,7 @@
         public VPath(VPath copy) {
             mPathName = copy.mPathName;
             mChangingConfigurations = copy.mChangingConfigurations;
-            mNodes = PathParser.deepCopyNodes(copy.mNodes);
+            mPathData = copy.mPathData == null ? null : new PathParser.PathData(copy.mPathData);
         }
 
         public String getPathName() {
@@ -1385,18 +1385,14 @@
 
         /* Setters and Getters, used by animator from AnimatedVectorDrawable. */
         @SuppressWarnings("unused")
-        public PathParser.PathDataNode[] getPathData() {
-            return mNodes;
+        public PathParser.PathData getPathData() {
+            return mPathData;
         }
 
+        // TODO: Move the PathEvaluator and this setter and the getter above into native.
         @SuppressWarnings("unused")
-        public void setPathData(PathParser.PathDataNode[] nodes) {
-            if (!PathParser.canMorph(mNodes, nodes)) {
-                // This should not happen in the middle of animation.
-                mNodes = PathParser.deepCopyNodes(nodes);
-            } else {
-                PathParser.updateNodes(mNodes, nodes);
-            }
+        public void setPathData(PathParser.PathData pathData) {
+            mPathData.setPathData(pathData);
         }
 
         @Override
@@ -1432,8 +1428,8 @@
          * @param outPath the output path
          */
         protected void toPath(TempState temp, Path outPath) {
-            if (mNodes != null) {
-                PathParser.PathDataNode.nodesToPath(mNodes, outPath);
+            if (mPathData != null) {
+                PathParser.createPathFromPathData(outPath, mPathData);
             }
         }
 
@@ -1528,9 +1524,9 @@
                 mPathName = pathName;
             }
 
-            final String pathData = a.getString(R.styleable.VectorDrawableClipPath_pathData);
-            if (pathData != null) {
-                mNodes = PathParser.createNodesFromPathData(pathData);
+            final String pathDataString = a.getString(R.styleable.VectorDrawableClipPath_pathData);
+            if (pathDataString != null) {
+                mPathData = new PathParser.PathData(pathDataString);
             }
         }
 
@@ -1759,9 +1755,9 @@
                 mPathName = pathName;
             }
 
-            final String pathData = a.getString(R.styleable.VectorDrawablePath_pathData);
-            if (pathData != null) {
-                mNodes = PathParser.createNodesFromPathData(pathData);
+            final String pathString = a.getString(R.styleable.VectorDrawablePath_pathData);
+            if (pathString != null) {
+                mPathData = new PathParser.PathData(pathString);
             }
 
             final ColorStateList fillColors = a.getColorStateList(
diff --git a/libs/hwui/Android.mk b/libs/hwui/Android.mk
index 8565372..92226f5 100644
--- a/libs/hwui/Android.mk
+++ b/libs/hwui/Android.mk
@@ -29,6 +29,7 @@
     utils/NinePatchImpl.cpp \
     utils/StringUtils.cpp \
     utils/TestWindowContext.cpp \
+    utils/VectorDrawableUtils.cpp \
     AmbientShadow.cpp \
     AnimationContext.cpp \
     Animator.cpp \
@@ -218,7 +219,7 @@
     unit_tests/FatVectorTests.cpp \
     unit_tests/LayerUpdateQueueTests.cpp \
     unit_tests/LinearAllocatorTests.cpp \
-    unit_tests/PathParserTests.cpp \
+    unit_tests/VectorDrawableTests.cpp \
     unit_tests/OffscreenBufferPoolTests.cpp \
     unit_tests/StringUtilsTests.cpp
 
diff --git a/libs/hwui/PathParser.cpp b/libs/hwui/PathParser.cpp
index 35230ff..4e9ac9c 100644
--- a/libs/hwui/PathParser.cpp
+++ b/libs/hwui/PathParser.cpp
@@ -221,7 +221,7 @@
         result->failureMessage = "No verbs found in the string for pathData";
         return;
     }
-    VectorDrawablePath::verbsToPath(skPath, &pathData);
+    VectorDrawableUtils::verbsToPath(skPath, pathData);
     return;
 }
 
diff --git a/libs/hwui/PathParser.h b/libs/hwui/PathParser.h
index a9c1e60..4c87b18 100644
--- a/libs/hwui/PathParser.h
+++ b/libs/hwui/PathParser.h
@@ -18,6 +18,7 @@
 #define ANDROID_HWUI_PATHPARSER_H
 
 #include "VectorDrawablePath.h"
+#include "utils/VectorDrawableUtils.h"
 
 #include <jni.h>
 #include <android/log.h>
@@ -40,7 +41,7 @@
      */
     ANDROID_API static void parseStringForSkPath(SkPath* outPath, ParseResult* result,
             const char* pathStr, size_t strLength);
-    static void getPathDataFromString(PathData* outData, ParseResult* result,
+    ANDROID_API static void getPathDataFromString(PathData* outData, ParseResult* result,
             const char* pathStr, size_t strLength);
     static void dump(const PathData& data);
 };
diff --git a/libs/hwui/RenderNode.cpp b/libs/hwui/RenderNode.cpp
index 716d536..3f24f44 100644
--- a/libs/hwui/RenderNode.cpp
+++ b/libs/hwui/RenderNode.cpp
@@ -288,6 +288,9 @@
     bool transformUpdateNeeded = false;
     if (!mLayer) {
         mLayer = createLayer(info.canvasContext.getRenderState(), getWidth(), getHeight());
+#if !HWUI_NEW_OPS
+        applyLayerPropertiesToLayer(info);
+#endif
         damageSelf(info);
         transformUpdateNeeded = true;
     } else if (!layerMatchesWidthAndHeight(mLayer, getWidth(), getHeight())) {
diff --git a/libs/hwui/VectorDrawablePath.cpp b/libs/hwui/VectorDrawablePath.cpp
index 05ea2da..c9a54ca 100644
--- a/libs/hwui/VectorDrawablePath.cpp
+++ b/libs/hwui/VectorDrawablePath.cpp
@@ -17,6 +17,7 @@
 #include "VectorDrawablePath.h"
 
 #include "PathParser.h"
+#include "utils/VectorDrawableUtils.h"
 
 #include <math.h>
 #include <utils/Log.h>
@@ -24,476 +25,35 @@
 namespace android {
 namespace uirenderer {
 
-class PathResolver {
-public:
-    float currentX = 0;
-    float currentY = 0;
-    float ctrlPointX = 0;
-    float ctrlPointY = 0;
-    float currentSegmentStartX = 0;
-    float currentSegmentStartY = 0;
-    void addCommand(SkPath* outPath, char previousCmd,
-            char cmd, const std::vector<float>* points, size_t start, size_t end);
-};
 
 VectorDrawablePath::VectorDrawablePath(const char* pathStr, size_t strLength) {
     PathParser::ParseResult result;
     PathParser::getPathDataFromString(&mData, &result, pathStr, strLength);
     if (!result.failureOccurred) {
-        verbsToPath(&mSkPath, &mData);
+        VectorDrawableUtils::verbsToPath(&mSkPath, mData);
     }
 }
 
 VectorDrawablePath::VectorDrawablePath(const PathData& data) {
     mData = data;
     // Now we need to construct a path
-    verbsToPath(&mSkPath, &data);
+    VectorDrawableUtils::verbsToPath(&mSkPath, data);
 }
 
 VectorDrawablePath::VectorDrawablePath(const VectorDrawablePath& path) {
     mData = path.mData;
-    verbsToPath(&mSkPath, &mData);
+    VectorDrawableUtils::verbsToPath(&mSkPath, mData);
 }
 
-bool VectorDrawablePath::canMorph(const PathData& morphTo) {
-    if (mData.verbs.size() != morphTo.verbs.size()) {
-        return false;
-    }
 
-    for (unsigned int i = 0; i < mData.verbs.size(); i++) {
-        if (mData.verbs[i] != morphTo.verbs[i]
-                || mData.verbSizes[i] != morphTo.verbSizes[i]) {
-            return false;
-        }
-    }
-    return true;
+bool VectorDrawablePath::canMorph(const PathData& morphTo) {
+    return VectorDrawableUtils::canMorph(mData, morphTo);
 }
 
 bool VectorDrawablePath::canMorph(const VectorDrawablePath& path) {
     return canMorph(path.mData);
 }
- /**
- * Convert an array of PathVerb to Path.
- */
-void VectorDrawablePath::verbsToPath(SkPath* outPath, const PathData* data) {
-    PathResolver resolver;
-    char previousCommand = 'm';
-    size_t start = 0;
-    outPath->reset();
-    for (unsigned int i = 0; i < data->verbs.size(); i++) {
-        size_t verbSize = data->verbSizes[i];
-        resolver.addCommand(outPath, previousCommand, data->verbs[i], &data->points, start,
-                start + verbSize);
-        previousCommand = data->verbs[i];
-        start += verbSize;
-    }
-}
 
-/**
- * The current PathVerb will be interpolated between the
- * <code>nodeFrom</code> and <code>nodeTo</code> according to the
- * <code>fraction</code>.
- *
- * @param nodeFrom The start value as a PathVerb.
- * @param nodeTo The end value as a PathVerb
- * @param fraction The fraction to interpolate.
- */
-void VectorDrawablePath::interpolatePaths(PathData* outData,
-        const PathData* from, const PathData* to, float fraction) {
-    outData->points.resize(from->points.size());
-    outData->verbSizes = from->verbSizes;
-    outData->verbs = from->verbs;
-
-    for (size_t i = 0; i < from->points.size(); i++) {
-        outData->points[i] = from->points[i] * (1 - fraction) + to->points[i] * fraction;
-    }
-}
-
-/**
- * Converts an arc to cubic Bezier segments and records them in p.
- *
- * @param p The target for the cubic Bezier segments
- * @param cx The x coordinate center of the ellipse
- * @param cy The y coordinate center of the ellipse
- * @param a The radius of the ellipse in the horizontal direction
- * @param b The radius of the ellipse in the vertical direction
- * @param e1x E(eta1) x coordinate of the starting point of the arc
- * @param e1y E(eta2) y coordinate of the starting point of the arc
- * @param theta The angle that the ellipse bounding rectangle makes with horizontal plane
- * @param start The start angle of the arc on the ellipse
- * @param sweep The angle (positive or negative) of the sweep of the arc on the ellipse
- */
-static void arcToBezier(SkPath* p,
-        double cx,
-        double cy,
-        double a,
-        double b,
-        double e1x,
-        double e1y,
-        double theta,
-        double start,
-        double sweep) {
-    // Taken from equations at: http://spaceroots.org/documents/ellipse/node8.html
-    // and http://www.spaceroots.org/documents/ellipse/node22.html
-
-    // Maximum of 45 degrees per cubic Bezier segment
-    int numSegments = ceil(fabs(sweep * 4 / M_PI));
-
-    double eta1 = start;
-    double cosTheta = cos(theta);
-    double sinTheta = sin(theta);
-    double cosEta1 = cos(eta1);
-    double sinEta1 = sin(eta1);
-    double ep1x = (-a * cosTheta * sinEta1) - (b * sinTheta * cosEta1);
-    double ep1y = (-a * sinTheta * sinEta1) + (b * cosTheta * cosEta1);
-
-    double anglePerSegment = sweep / numSegments;
-    for (int i = 0; i < numSegments; i++) {
-        double eta2 = eta1 + anglePerSegment;
-        double sinEta2 = sin(eta2);
-        double cosEta2 = cos(eta2);
-        double e2x = cx + (a * cosTheta * cosEta2) - (b * sinTheta * sinEta2);
-        double e2y = cy + (a * sinTheta * cosEta2) + (b * cosTheta * sinEta2);
-        double ep2x = -a * cosTheta * sinEta2 - b * sinTheta * cosEta2;
-        double ep2y = -a * sinTheta * sinEta2 + b * cosTheta * cosEta2;
-        double tanDiff2 = tan((eta2 - eta1) / 2);
-        double alpha =
-                sin(eta2 - eta1) * (sqrt(4 + (3 * tanDiff2 * tanDiff2)) - 1) / 3;
-        double q1x = e1x + alpha * ep1x;
-        double q1y = e1y + alpha * ep1y;
-        double q2x = e2x - alpha * ep2x;
-        double q2y = e2y - alpha * ep2y;
-
-        p->cubicTo((float) q1x,
-                (float) q1y,
-                (float) q2x,
-                (float) q2y,
-                (float) e2x,
-                (float) e2y);
-        eta1 = eta2;
-        e1x = e2x;
-        e1y = e2y;
-        ep1x = ep2x;
-        ep1y = ep2y;
-    }
-}
-
-inline double toRadians(float theta) { return theta * M_PI / 180;}
-
-static void drawArc(SkPath* p,
-        float x0,
-        float y0,
-        float x1,
-        float y1,
-        float a,
-        float b,
-        float theta,
-        bool isMoreThanHalf,
-        bool isPositiveArc) {
-
-    /* Convert rotation angle from degrees to radians */
-    double thetaD = toRadians(theta);
-    /* Pre-compute rotation matrix entries */
-    double cosTheta = cos(thetaD);
-    double sinTheta = sin(thetaD);
-    /* Transform (x0, y0) and (x1, y1) into unit space */
-    /* using (inverse) rotation, followed by (inverse) scale */
-    double x0p = (x0 * cosTheta + y0 * sinTheta) / a;
-    double y0p = (-x0 * sinTheta + y0 * cosTheta) / b;
-    double x1p = (x1 * cosTheta + y1 * sinTheta) / a;
-    double y1p = (-x1 * sinTheta + y1 * cosTheta) / b;
-
-    /* Compute differences and averages */
-    double dx = x0p - x1p;
-    double dy = y0p - y1p;
-    double xm = (x0p + x1p) / 2;
-    double ym = (y0p + y1p) / 2;
-    /* Solve for intersecting unit circles */
-    double dsq = dx * dx + dy * dy;
-    if (dsq == 0.0) {
-        ALOGW("Points are coincident");
-        return; /* Points are coincident */
-    }
-    double disc = 1.0 / dsq - 1.0 / 4.0;
-    if (disc < 0.0) {
-        ALOGW("Points are too far apart %f", dsq);
-        float adjust = (float) (sqrt(dsq) / 1.99999);
-        drawArc(p, x0, y0, x1, y1, a * adjust,
-                b * adjust, theta, isMoreThanHalf, isPositiveArc);
-        return; /* Points are too far apart */
-    }
-    double s = sqrt(disc);
-    double sdx = s * dx;
-    double sdy = s * dy;
-    double cx;
-    double cy;
-    if (isMoreThanHalf == isPositiveArc) {
-        cx = xm - sdy;
-        cy = ym + sdx;
-    } else {
-        cx = xm + sdy;
-        cy = ym - sdx;
-    }
-
-    double eta0 = atan2((y0p - cy), (x0p - cx));
-
-    double eta1 = atan2((y1p - cy), (x1p - cx));
-
-    double sweep = (eta1 - eta0);
-    if (isPositiveArc != (sweep >= 0)) {
-        if (sweep > 0) {
-            sweep -= 2 * M_PI;
-        } else {
-            sweep += 2 * M_PI;
-        }
-    }
-
-    cx *= a;
-    cy *= b;
-    double tcx = cx;
-    cx = cx * cosTheta - cy * sinTheta;
-    cy = tcx * sinTheta + cy * cosTheta;
-
-    arcToBezier(p, cx, cy, a, b, x0, y0, thetaD, eta0, sweep);
-}
-
-// Use the given verb, and points in the range [start, end) to insert a command into the SkPath.
-void PathResolver::addCommand(SkPath* outPath, char previousCmd,
-        char cmd, const std::vector<float>* points, size_t start, size_t end) {
-
-    int incr = 2;
-    float reflectiveCtrlPointX;
-    float reflectiveCtrlPointY;
-
-    switch (cmd) {
-    case 'z':
-    case 'Z':
-        outPath->close();
-        // Path is closed here, but we need to move the pen to the
-        // closed position. So we cache the segment's starting position,
-        // and restore it here.
-        currentX = currentSegmentStartX;
-        currentY = currentSegmentStartY;
-        ctrlPointX = currentSegmentStartX;
-        ctrlPointY = currentSegmentStartY;
-        outPath->moveTo(currentX, currentY);
-        break;
-    case 'm':
-    case 'M':
-    case 'l':
-    case 'L':
-    case 't':
-    case 'T':
-        incr = 2;
-        break;
-    case 'h':
-    case 'H':
-    case 'v':
-    case 'V':
-        incr = 1;
-        break;
-    case 'c':
-    case 'C':
-        incr = 6;
-        break;
-    case 's':
-    case 'S':
-    case 'q':
-    case 'Q':
-        incr = 4;
-        break;
-    case 'a':
-    case 'A':
-        incr = 7;
-        break;
-    }
-
-    for (unsigned int k = start; k < end; k += incr) {
-        switch (cmd) {
-        case 'm': // moveto - Start a new sub-path (relative)
-            currentX += points->at(k + 0);
-            currentY += points->at(k + 1);
-            if (k > start) {
-                // According to the spec, if a moveto is followed by multiple
-                // pairs of coordinates, the subsequent pairs are treated as
-                // implicit lineto commands.
-                outPath->rLineTo(points->at(k + 0), points->at(k + 1));
-            } else {
-                outPath->rMoveTo(points->at(k + 0), points->at(k + 1));
-                currentSegmentStartX = currentX;
-                currentSegmentStartY = currentY;
-            }
-            break;
-        case 'M': // moveto - Start a new sub-path
-            currentX = points->at(k + 0);
-            currentY = points->at(k + 1);
-            if (k > start) {
-                // According to the spec, if a moveto is followed by multiple
-                // pairs of coordinates, the subsequent pairs are treated as
-                // implicit lineto commands.
-                outPath->lineTo(points->at(k + 0), points->at(k + 1));
-            } else {
-                outPath->moveTo(points->at(k + 0), points->at(k + 1));
-                currentSegmentStartX = currentX;
-                currentSegmentStartY = currentY;
-            }
-            break;
-        case 'l': // lineto - Draw a line from the current point (relative)
-            outPath->rLineTo(points->at(k + 0), points->at(k + 1));
-            currentX += points->at(k + 0);
-            currentY += points->at(k + 1);
-            break;
-        case 'L': // lineto - Draw a line from the current point
-            outPath->lineTo(points->at(k + 0), points->at(k + 1));
-            currentX = points->at(k + 0);
-            currentY = points->at(k + 1);
-            break;
-        case 'h': // horizontal lineto - Draws a horizontal line (relative)
-            outPath->rLineTo(points->at(k + 0), 0);
-            currentX += points->at(k + 0);
-            break;
-        case 'H': // horizontal lineto - Draws a horizontal line
-            outPath->lineTo(points->at(k + 0), currentY);
-            currentX = points->at(k + 0);
-            break;
-        case 'v': // vertical lineto - Draws a vertical line from the current point (r)
-            outPath->rLineTo(0, points->at(k + 0));
-            currentY += points->at(k + 0);
-            break;
-        case 'V': // vertical lineto - Draws a vertical line from the current point
-            outPath->lineTo(currentX, points->at(k + 0));
-            currentY = points->at(k + 0);
-            break;
-        case 'c': // curveto - Draws a cubic Bézier curve (relative)
-            outPath->rCubicTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3),
-                    points->at(k + 4), points->at(k + 5));
-
-            ctrlPointX = currentX + points->at(k + 2);
-            ctrlPointY = currentY + points->at(k + 3);
-            currentX += points->at(k + 4);
-            currentY += points->at(k + 5);
-
-            break;
-        case 'C': // curveto - Draws a cubic Bézier curve
-            outPath->cubicTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3),
-                    points->at(k + 4), points->at(k + 5));
-            currentX = points->at(k + 4);
-            currentY = points->at(k + 5);
-            ctrlPointX = points->at(k + 2);
-            ctrlPointY = points->at(k + 3);
-            break;
-        case 's': // smooth curveto - Draws a cubic Bézier curve (reflective cp)
-            reflectiveCtrlPointX = 0;
-            reflectiveCtrlPointY = 0;
-            if (previousCmd == 'c' || previousCmd == 's'
-                    || previousCmd == 'C' || previousCmd == 'S') {
-                reflectiveCtrlPointX = currentX - ctrlPointX;
-                reflectiveCtrlPointY = currentY - ctrlPointY;
-            }
-            outPath->rCubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                    points->at(k + 0), points->at(k + 1),
-                    points->at(k + 2), points->at(k + 3));
-            ctrlPointX = currentX + points->at(k + 0);
-            ctrlPointY = currentY + points->at(k + 1);
-            currentX += points->at(k + 2);
-            currentY += points->at(k + 3);
-            break;
-        case 'S': // shorthand/smooth curveto Draws a cubic Bézier curve(reflective cp)
-            reflectiveCtrlPointX = currentX;
-            reflectiveCtrlPointY = currentY;
-            if (previousCmd == 'c' || previousCmd == 's'
-                    || previousCmd == 'C' || previousCmd == 'S') {
-                reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
-                reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
-            }
-            outPath->cubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                    points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
-            ctrlPointX = points->at(k + 0);
-            ctrlPointY = points->at(k + 1);
-            currentX = points->at(k + 2);
-            currentY = points->at(k + 3);
-            break;
-        case 'q': // Draws a quadratic Bézier (relative)
-            outPath->rQuadTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
-            ctrlPointX = currentX + points->at(k + 0);
-            ctrlPointY = currentY + points->at(k + 1);
-            currentX += points->at(k + 2);
-            currentY += points->at(k + 3);
-            break;
-        case 'Q': // Draws a quadratic Bézier
-            outPath->quadTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
-            ctrlPointX = points->at(k + 0);
-            ctrlPointY = points->at(k + 1);
-            currentX = points->at(k + 2);
-            currentY = points->at(k + 3);
-            break;
-        case 't': // Draws a quadratic Bézier curve(reflective control point)(relative)
-            reflectiveCtrlPointX = 0;
-            reflectiveCtrlPointY = 0;
-            if (previousCmd == 'q' || previousCmd == 't'
-                    || previousCmd == 'Q' || previousCmd == 'T') {
-                reflectiveCtrlPointX = currentX - ctrlPointX;
-                reflectiveCtrlPointY = currentY - ctrlPointY;
-            }
-            outPath->rQuadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                    points->at(k + 0), points->at(k + 1));
-            ctrlPointX = currentX + reflectiveCtrlPointX;
-            ctrlPointY = currentY + reflectiveCtrlPointY;
-            currentX += points->at(k + 0);
-            currentY += points->at(k + 1);
-            break;
-        case 'T': // Draws a quadratic Bézier curve (reflective control point)
-            reflectiveCtrlPointX = currentX;
-            reflectiveCtrlPointY = currentY;
-            if (previousCmd == 'q' || previousCmd == 't'
-                    || previousCmd == 'Q' || previousCmd == 'T') {
-                reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
-                reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
-            }
-            outPath->quadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
-                    points->at(k + 0), points->at(k + 1));
-            ctrlPointX = reflectiveCtrlPointX;
-            ctrlPointY = reflectiveCtrlPointY;
-            currentX = points->at(k + 0);
-            currentY = points->at(k + 1);
-            break;
-        case 'a': // Draws an elliptical arc
-            // (rx ry x-axis-rotation large-arc-flag sweep-flag x y)
-            drawArc(outPath,
-                    currentX,
-                    currentY,
-                    points->at(k + 5) + currentX,
-                    points->at(k + 6) + currentY,
-                    points->at(k + 0),
-                    points->at(k + 1),
-                    points->at(k + 2),
-                    points->at(k + 3) != 0,
-                    points->at(k + 4) != 0);
-            currentX += points->at(k + 5);
-            currentY += points->at(k + 6);
-            ctrlPointX = currentX;
-            ctrlPointY = currentY;
-            break;
-        case 'A': // Draws an elliptical arc
-            drawArc(outPath,
-                    currentX,
-                    currentY,
-                    points->at(k + 5),
-                    points->at(k + 6),
-                    points->at(k + 0),
-                    points->at(k + 1),
-                    points->at(k + 2),
-                    points->at(k + 3) != 0,
-                    points->at(k + 4) != 0);
-            currentX = points->at(k + 5);
-            currentY = points->at(k + 6);
-            ctrlPointX = currentX;
-            ctrlPointY = currentY;
-            break;
-        }
-        previousCmd = cmd;
-    }
-}
 
 }; // namespace uirenderer
 }; // namespace android
diff --git a/libs/hwui/VectorDrawablePath.h b/libs/hwui/VectorDrawablePath.h
index 40ce986..2e56349 100644
--- a/libs/hwui/VectorDrawablePath.h
+++ b/libs/hwui/VectorDrawablePath.h
@@ -17,15 +17,14 @@
 #ifndef ANDROID_HWUI_VPATH_H
 #define ANDROID_HWUI_VPATH_H
 
+#include <cutils/compiler.h>
 #include "SkPath.h"
 #include <vector>
 
 namespace android {
 namespace uirenderer {
 
-
-
-struct PathData {
+struct ANDROID_API PathData {
     // TODO: Try using FatVector instead of std::vector and do a micro benchmark on the performance
     // difference.
     std::vector<char> verbs;
@@ -44,9 +43,7 @@
     VectorDrawablePath(const char* path, size_t strLength);
     bool canMorph(const PathData& path);
     bool canMorph(const VectorDrawablePath& path);
-    static void verbsToPath(SkPath* outPath, const PathData* data);
-    static void interpolatePaths(PathData* outPathData, const PathData* from, const PathData* to,
-            float fraction);
+
 private:
     PathData mData;
     SkPath mSkPath;
diff --git a/libs/hwui/microbench/PathParserBench.cpp b/libs/hwui/microbench/PathParserBench.cpp
index 171078d..3d9fafa 100644
--- a/libs/hwui/microbench/PathParserBench.cpp
+++ b/libs/hwui/microbench/PathParserBench.cpp
@@ -17,21 +17,35 @@
 #include <benchmark/Benchmark.h>
 
 #include "PathParser.h"
+#include "VectorDrawablePath.h"
 
 #include <SkPath.h>
 
 using namespace android;
 using namespace android::uirenderer;
 
-BENCHMARK_NO_ARG(BM_PathParser_parseStringPath);
-void BM_PathParser_parseStringPath::Run(int iter) {
-    const char* pathString = "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10";
+static const char* sPathString = "M 1 1 m 2 2, l 3 3 L 3 3 H 4 h4 V5 v5, Q6 6 6 6 q 6 6 6 6t 7 7 T 7 7 C 8 8 8 8 8 8 c 8 8 8 8 8 8 S 9 9 9 9 s 9 9 9 9 A 10 10 0 1 1 10 10 a 10 10 0 1 1 10 10";
+
+BENCHMARK_NO_ARG(BM_PathParser_parseStringPathForSkPath);
+void BM_PathParser_parseStringPathForSkPath::Run(int iter) {
     SkPath skPath;
-    size_t length = strlen(pathString);
+    size_t length = strlen(sPathString);
     PathParser::ParseResult result;
     StartBenchmarkTiming();
     for (int i = 0; i < iter; i++) {
-        PathParser::parseStringForSkPath(&skPath, &result, pathString, length);
+        PathParser::parseStringForSkPath(&skPath, &result, sPathString, length);
+    }
+    StopBenchmarkTiming();
+}
+
+BENCHMARK_NO_ARG(BM_PathParser_parseStringPathForPathData);
+void BM_PathParser_parseStringPathForPathData::Run(int iter) {
+    size_t length = strlen(sPathString);
+    PathData outData;
+    PathParser::ParseResult result;
+    StartBenchmarkTiming();
+    for (int i = 0; i < iter; i++) {
+        PathParser::getPathDataFromString(&outData, &result, sPathString, length);
     }
     StopBenchmarkTiming();
 }
diff --git a/libs/hwui/unit_tests/PathParserTests.cpp b/libs/hwui/unit_tests/VectorDrawableTests.cpp
similarity index 79%
rename from libs/hwui/unit_tests/PathParserTests.cpp
rename to libs/hwui/unit_tests/VectorDrawableTests.cpp
index c99d7b0..77dd73a 100644
--- a/libs/hwui/unit_tests/PathParserTests.cpp
+++ b/libs/hwui/unit_tests/VectorDrawableTests.cpp
@@ -17,7 +17,8 @@
 #include <gtest/gtest.h>
 
 #include "PathParser.h"
-#include "VectorDrawablePath.h"
+#include "utils/MathUtils.h"
+#include "utils/VectorDrawableUtils.h"
 
 #include <functional>
 
@@ -177,6 +178,10 @@
     {"1-2e34567", false}
 };
 
+static bool hasSameVerbs(const PathData& from, const PathData& to) {
+    return from.verbs == to.verbs && from.verbSizes == to.verbSizes;
+}
+
 TEST(PathParser, parseStringForData) {
     for (TestData testData: sTestDataSet) {
         PathParser::ParseResult result;
@@ -197,12 +202,12 @@
     }
 }
 
-TEST(PathParser, createSkPathFromPathData) {
+TEST(VectorDrawableUtils, createSkPathFromPathData) {
     for (TestData testData: sTestDataSet) {
         SkPath expectedPath;
         testData.skPathLamda(&expectedPath);
         SkPath actualPath;
-        VectorDrawablePath::verbsToPath(&actualPath, &testData.pathData);
+        VectorDrawableUtils::verbsToPath(&actualPath, testData.pathData);
         EXPECT_EQ(expectedPath, actualPath);
     }
 }
@@ -230,5 +235,55 @@
     }
 }
 
+TEST(VectorDrawableUtils, morphPathData) {
+    for (TestData fromData: sTestDataSet) {
+        for (TestData toData: sTestDataSet) {
+            bool canMorph = VectorDrawableUtils::canMorph(fromData.pathData, toData.pathData);
+            if (fromData.pathData == toData.pathData) {
+                EXPECT_TRUE(canMorph);
+            } else {
+                bool expectedToMorph = hasSameVerbs(fromData.pathData, toData.pathData);
+                EXPECT_EQ(expectedToMorph, canMorph);
+            }
+        }
+    }
+}
+
+TEST(VectorDrawableUtils, interpolatePathData) {
+    // Interpolate path data with itself and every other path data
+    for (TestData fromData: sTestDataSet) {
+        for (TestData toData: sTestDataSet) {
+            PathData outData;
+            bool success = VectorDrawableUtils::interpolatePathData(&outData, fromData.pathData,
+                    toData.pathData, 0.5);
+            bool expectedToMorph = hasSameVerbs(fromData.pathData, toData.pathData);
+            EXPECT_EQ(expectedToMorph, success);
+        }
+    }
+
+    float fractions[] = {0, 0.00001, 0.28, 0.5, 0.7777, 0.9999999, 1};
+    // Now try to interpolate with a slightly modified version of self and expect success
+    for (TestData fromData : sTestDataSet) {
+        PathData toPathData = fromData.pathData;
+        for (size_t i = 0; i < toPathData.points.size(); i++) {
+            toPathData.points[i]++;
+        }
+        const PathData& fromPathData = fromData.pathData;
+        PathData outData;
+        // Interpolate the two path data with different fractions
+        for (float fraction : fractions) {
+            bool success = VectorDrawableUtils::interpolatePathData(
+                    &outData, fromPathData, toPathData, fraction);
+            EXPECT_TRUE(success);
+            for (size_t i = 0; i < outData.points.size(); i++) {
+                float expectedResult = fromPathData.points[i] * (1.0 - fraction) +
+                        toPathData.points[i] * fraction;
+                EXPECT_TRUE(MathUtils::areEqual(expectedResult, outData.points[i]));
+            }
+        }
+    }
+}
+
+
 }; // namespace uirenderer
 }; // namespace android
diff --git a/libs/hwui/utils/VectorDrawableUtils.cpp b/libs/hwui/utils/VectorDrawableUtils.cpp
new file mode 100644
index 0000000..ca75c59
--- /dev/null
+++ b/libs/hwui/utils/VectorDrawableUtils.cpp
@@ -0,0 +1,491 @@
+/*
+ * 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.
+ */
+
+#include "VectorDrawableUtils.h"
+
+#include "PathParser.h"
+
+#include <math.h>
+#include <utils/Log.h>
+
+namespace android {
+namespace uirenderer {
+
+class PathResolver {
+public:
+    float currentX = 0;
+    float currentY = 0;
+    float ctrlPointX = 0;
+    float ctrlPointY = 0;
+    float currentSegmentStartX = 0;
+    float currentSegmentStartY = 0;
+    void addCommand(SkPath* outPath, char previousCmd,
+            char cmd, const std::vector<float>* points, size_t start, size_t end);
+};
+
+bool VectorDrawableUtils::canMorph(const PathData& morphFrom, const PathData& morphTo) {
+    if (morphFrom.verbs.size() != morphTo.verbs.size()) {
+        return false;
+    }
+
+    for (unsigned int i = 0; i < morphFrom.verbs.size(); i++) {
+        if (morphFrom.verbs[i] != morphTo.verbs[i]
+                ||  morphFrom.verbSizes[i] != morphTo.verbSizes[i]) {
+            return false;
+        }
+    }
+    return true;
+}
+
+bool VectorDrawableUtils::interpolatePathData(PathData* outData, const PathData& morphFrom,
+        const PathData& morphTo, float fraction) {
+    if (!canMorph(morphFrom, morphTo)) {
+        return false;
+    }
+    interpolatePaths(outData, morphFrom, morphTo, fraction);
+    return true;
+}
+
+ /**
+ * Convert an array of PathVerb to Path.
+ */
+void VectorDrawableUtils::verbsToPath(SkPath* outPath, const PathData& data) {
+    PathResolver resolver;
+    char previousCommand = 'm';
+    size_t start = 0;
+    outPath->reset();
+    for (unsigned int i = 0; i < data.verbs.size(); i++) {
+        size_t verbSize = data.verbSizes[i];
+        resolver.addCommand(outPath, previousCommand, data.verbs[i], &data.points, start,
+                start + verbSize);
+        previousCommand = data.verbs[i];
+        start += verbSize;
+    }
+}
+
+/**
+ * The current PathVerb will be interpolated between the
+ * <code>nodeFrom</code> and <code>nodeTo</code> according to the
+ * <code>fraction</code>.
+ *
+ * @param nodeFrom The start value as a PathVerb.
+ * @param nodeTo The end value as a PathVerb
+ * @param fraction The fraction to interpolate.
+ */
+void VectorDrawableUtils::interpolatePaths(PathData* outData,
+        const PathData& from, const PathData& to, float fraction) {
+    outData->points.resize(from.points.size());
+    outData->verbSizes = from.verbSizes;
+    outData->verbs = from.verbs;
+
+    for (size_t i = 0; i < from.points.size(); i++) {
+        outData->points[i] = from.points[i] * (1 - fraction) + to.points[i] * fraction;
+    }
+}
+
+/**
+ * Converts an arc to cubic Bezier segments and records them in p.
+ *
+ * @param p The target for the cubic Bezier segments
+ * @param cx The x coordinate center of the ellipse
+ * @param cy The y coordinate center of the ellipse
+ * @param a The radius of the ellipse in the horizontal direction
+ * @param b The radius of the ellipse in the vertical direction
+ * @param e1x E(eta1) x coordinate of the starting point of the arc
+ * @param e1y E(eta2) y coordinate of the starting point of the arc
+ * @param theta The angle that the ellipse bounding rectangle makes with horizontal plane
+ * @param start The start angle of the arc on the ellipse
+ * @param sweep The angle (positive or negative) of the sweep of the arc on the ellipse
+ */
+static void arcToBezier(SkPath* p,
+        double cx,
+        double cy,
+        double a,
+        double b,
+        double e1x,
+        double e1y,
+        double theta,
+        double start,
+        double sweep) {
+    // Taken from equations at: http://spaceroots.org/documents/ellipse/node8.html
+    // and http://www.spaceroots.org/documents/ellipse/node22.html
+
+    // Maximum of 45 degrees per cubic Bezier segment
+    int numSegments = ceil(fabs(sweep * 4 / M_PI));
+
+    double eta1 = start;
+    double cosTheta = cos(theta);
+    double sinTheta = sin(theta);
+    double cosEta1 = cos(eta1);
+    double sinEta1 = sin(eta1);
+    double ep1x = (-a * cosTheta * sinEta1) - (b * sinTheta * cosEta1);
+    double ep1y = (-a * sinTheta * sinEta1) + (b * cosTheta * cosEta1);
+
+    double anglePerSegment = sweep / numSegments;
+    for (int i = 0; i < numSegments; i++) {
+        double eta2 = eta1 + anglePerSegment;
+        double sinEta2 = sin(eta2);
+        double cosEta2 = cos(eta2);
+        double e2x = cx + (a * cosTheta * cosEta2) - (b * sinTheta * sinEta2);
+        double e2y = cy + (a * sinTheta * cosEta2) + (b * cosTheta * sinEta2);
+        double ep2x = -a * cosTheta * sinEta2 - b * sinTheta * cosEta2;
+        double ep2y = -a * sinTheta * sinEta2 + b * cosTheta * cosEta2;
+        double tanDiff2 = tan((eta2 - eta1) / 2);
+        double alpha =
+                sin(eta2 - eta1) * (sqrt(4 + (3 * tanDiff2 * tanDiff2)) - 1) / 3;
+        double q1x = e1x + alpha * ep1x;
+        double q1y = e1y + alpha * ep1y;
+        double q2x = e2x - alpha * ep2x;
+        double q2y = e2y - alpha * ep2y;
+
+        p->cubicTo((float) q1x,
+                (float) q1y,
+                (float) q2x,
+                (float) q2y,
+                (float) e2x,
+                (float) e2y);
+        eta1 = eta2;
+        e1x = e2x;
+        e1y = e2y;
+        ep1x = ep2x;
+        ep1y = ep2y;
+    }
+}
+
+inline double toRadians(float theta) { return theta * M_PI / 180;}
+
+static void drawArc(SkPath* p,
+        float x0,
+        float y0,
+        float x1,
+        float y1,
+        float a,
+        float b,
+        float theta,
+        bool isMoreThanHalf,
+        bool isPositiveArc) {
+
+    /* Convert rotation angle from degrees to radians */
+    double thetaD = toRadians(theta);
+    /* Pre-compute rotation matrix entries */
+    double cosTheta = cos(thetaD);
+    double sinTheta = sin(thetaD);
+    /* Transform (x0, y0) and (x1, y1) into unit space */
+    /* using (inverse) rotation, followed by (inverse) scale */
+    double x0p = (x0 * cosTheta + y0 * sinTheta) / a;
+    double y0p = (-x0 * sinTheta + y0 * cosTheta) / b;
+    double x1p = (x1 * cosTheta + y1 * sinTheta) / a;
+    double y1p = (-x1 * sinTheta + y1 * cosTheta) / b;
+
+    /* Compute differences and averages */
+    double dx = x0p - x1p;
+    double dy = y0p - y1p;
+    double xm = (x0p + x1p) / 2;
+    double ym = (y0p + y1p) / 2;
+    /* Solve for intersecting unit circles */
+    double dsq = dx * dx + dy * dy;
+    if (dsq == 0.0) {
+        ALOGW("Points are coincident");
+        return; /* Points are coincident */
+    }
+    double disc = 1.0 / dsq - 1.0 / 4.0;
+    if (disc < 0.0) {
+        ALOGW("Points are too far apart %f", dsq);
+        float adjust = (float) (sqrt(dsq) / 1.99999);
+        drawArc(p, x0, y0, x1, y1, a * adjust,
+                b * adjust, theta, isMoreThanHalf, isPositiveArc);
+        return; /* Points are too far apart */
+    }
+    double s = sqrt(disc);
+    double sdx = s * dx;
+    double sdy = s * dy;
+    double cx;
+    double cy;
+    if (isMoreThanHalf == isPositiveArc) {
+        cx = xm - sdy;
+        cy = ym + sdx;
+    } else {
+        cx = xm + sdy;
+        cy = ym - sdx;
+    }
+
+    double eta0 = atan2((y0p - cy), (x0p - cx));
+
+    double eta1 = atan2((y1p - cy), (x1p - cx));
+
+    double sweep = (eta1 - eta0);
+    if (isPositiveArc != (sweep >= 0)) {
+        if (sweep > 0) {
+            sweep -= 2 * M_PI;
+        } else {
+            sweep += 2 * M_PI;
+        }
+    }
+
+    cx *= a;
+    cy *= b;
+    double tcx = cx;
+    cx = cx * cosTheta - cy * sinTheta;
+    cy = tcx * sinTheta + cy * cosTheta;
+
+    arcToBezier(p, cx, cy, a, b, x0, y0, thetaD, eta0, sweep);
+}
+
+
+
+// Use the given verb, and points in the range [start, end) to insert a command into the SkPath.
+void PathResolver::addCommand(SkPath* outPath, char previousCmd,
+        char cmd, const std::vector<float>* points, size_t start, size_t end) {
+
+    int incr = 2;
+    float reflectiveCtrlPointX;
+    float reflectiveCtrlPointY;
+
+    switch (cmd) {
+    case 'z':
+    case 'Z':
+        outPath->close();
+        // Path is closed here, but we need to move the pen to the
+        // closed position. So we cache the segment's starting position,
+        // and restore it here.
+        currentX = currentSegmentStartX;
+        currentY = currentSegmentStartY;
+        ctrlPointX = currentSegmentStartX;
+        ctrlPointY = currentSegmentStartY;
+        outPath->moveTo(currentX, currentY);
+        break;
+    case 'm':
+    case 'M':
+    case 'l':
+    case 'L':
+    case 't':
+    case 'T':
+        incr = 2;
+        break;
+    case 'h':
+    case 'H':
+    case 'v':
+    case 'V':
+        incr = 1;
+        break;
+    case 'c':
+    case 'C':
+        incr = 6;
+        break;
+    case 's':
+    case 'S':
+    case 'q':
+    case 'Q':
+        incr = 4;
+        break;
+    case 'a':
+    case 'A':
+        incr = 7;
+        break;
+    }
+
+    for (unsigned int k = start; k < end; k += incr) {
+        switch (cmd) {
+        case 'm': // moveto - Start a new sub-path (relative)
+            currentX += points->at(k + 0);
+            currentY += points->at(k + 1);
+            if (k > start) {
+                // According to the spec, if a moveto is followed by multiple
+                // pairs of coordinates, the subsequent pairs are treated as
+                // implicit lineto commands.
+                outPath->rLineTo(points->at(k + 0), points->at(k + 1));
+            } else {
+                outPath->rMoveTo(points->at(k + 0), points->at(k + 1));
+                currentSegmentStartX = currentX;
+                currentSegmentStartY = currentY;
+            }
+            break;
+        case 'M': // moveto - Start a new sub-path
+            currentX = points->at(k + 0);
+            currentY = points->at(k + 1);
+            if (k > start) {
+                // According to the spec, if a moveto is followed by multiple
+                // pairs of coordinates, the subsequent pairs are treated as
+                // implicit lineto commands.
+                outPath->lineTo(points->at(k + 0), points->at(k + 1));
+            } else {
+                outPath->moveTo(points->at(k + 0), points->at(k + 1));
+                currentSegmentStartX = currentX;
+                currentSegmentStartY = currentY;
+            }
+            break;
+        case 'l': // lineto - Draw a line from the current point (relative)
+            outPath->rLineTo(points->at(k + 0), points->at(k + 1));
+            currentX += points->at(k + 0);
+            currentY += points->at(k + 1);
+            break;
+        case 'L': // lineto - Draw a line from the current point
+            outPath->lineTo(points->at(k + 0), points->at(k + 1));
+            currentX = points->at(k + 0);
+            currentY = points->at(k + 1);
+            break;
+        case 'h': // horizontal lineto - Draws a horizontal line (relative)
+            outPath->rLineTo(points->at(k + 0), 0);
+            currentX += points->at(k + 0);
+            break;
+        case 'H': // horizontal lineto - Draws a horizontal line
+            outPath->lineTo(points->at(k + 0), currentY);
+            currentX = points->at(k + 0);
+            break;
+        case 'v': // vertical lineto - Draws a vertical line from the current point (r)
+            outPath->rLineTo(0, points->at(k + 0));
+            currentY += points->at(k + 0);
+            break;
+        case 'V': // vertical lineto - Draws a vertical line from the current point
+            outPath->lineTo(currentX, points->at(k + 0));
+            currentY = points->at(k + 0);
+            break;
+        case 'c': // curveto - Draws a cubic Bézier curve (relative)
+            outPath->rCubicTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3),
+                    points->at(k + 4), points->at(k + 5));
+
+            ctrlPointX = currentX + points->at(k + 2);
+            ctrlPointY = currentY + points->at(k + 3);
+            currentX += points->at(k + 4);
+            currentY += points->at(k + 5);
+
+            break;
+        case 'C': // curveto - Draws a cubic Bézier curve
+            outPath->cubicTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3),
+                    points->at(k + 4), points->at(k + 5));
+            currentX = points->at(k + 4);
+            currentY = points->at(k + 5);
+            ctrlPointX = points->at(k + 2);
+            ctrlPointY = points->at(k + 3);
+            break;
+        case 's': // smooth curveto - Draws a cubic Bézier curve (reflective cp)
+            reflectiveCtrlPointX = 0;
+            reflectiveCtrlPointY = 0;
+            if (previousCmd == 'c' || previousCmd == 's'
+                    || previousCmd == 'C' || previousCmd == 'S') {
+                reflectiveCtrlPointX = currentX - ctrlPointX;
+                reflectiveCtrlPointY = currentY - ctrlPointY;
+            }
+            outPath->rCubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+                    points->at(k + 0), points->at(k + 1),
+                    points->at(k + 2), points->at(k + 3));
+            ctrlPointX = currentX + points->at(k + 0);
+            ctrlPointY = currentY + points->at(k + 1);
+            currentX += points->at(k + 2);
+            currentY += points->at(k + 3);
+            break;
+        case 'S': // shorthand/smooth curveto Draws a cubic Bézier curve(reflective cp)
+            reflectiveCtrlPointX = currentX;
+            reflectiveCtrlPointY = currentY;
+            if (previousCmd == 'c' || previousCmd == 's'
+                    || previousCmd == 'C' || previousCmd == 'S') {
+                reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
+                reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
+            }
+            outPath->cubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+                    points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
+            ctrlPointX = points->at(k + 0);
+            ctrlPointY = points->at(k + 1);
+            currentX = points->at(k + 2);
+            currentY = points->at(k + 3);
+            break;
+        case 'q': // Draws a quadratic Bézier (relative)
+            outPath->rQuadTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
+            ctrlPointX = currentX + points->at(k + 0);
+            ctrlPointY = currentY + points->at(k + 1);
+            currentX += points->at(k + 2);
+            currentY += points->at(k + 3);
+            break;
+        case 'Q': // Draws a quadratic Bézier
+            outPath->quadTo(points->at(k + 0), points->at(k + 1), points->at(k + 2), points->at(k + 3));
+            ctrlPointX = points->at(k + 0);
+            ctrlPointY = points->at(k + 1);
+            currentX = points->at(k + 2);
+            currentY = points->at(k + 3);
+            break;
+        case 't': // Draws a quadratic Bézier curve(reflective control point)(relative)
+            reflectiveCtrlPointX = 0;
+            reflectiveCtrlPointY = 0;
+            if (previousCmd == 'q' || previousCmd == 't'
+                    || previousCmd == 'Q' || previousCmd == 'T') {
+                reflectiveCtrlPointX = currentX - ctrlPointX;
+                reflectiveCtrlPointY = currentY - ctrlPointY;
+            }
+            outPath->rQuadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+                    points->at(k + 0), points->at(k + 1));
+            ctrlPointX = currentX + reflectiveCtrlPointX;
+            ctrlPointY = currentY + reflectiveCtrlPointY;
+            currentX += points->at(k + 0);
+            currentY += points->at(k + 1);
+            break;
+        case 'T': // Draws a quadratic Bézier curve (reflective control point)
+            reflectiveCtrlPointX = currentX;
+            reflectiveCtrlPointY = currentY;
+            if (previousCmd == 'q' || previousCmd == 't'
+                    || previousCmd == 'Q' || previousCmd == 'T') {
+                reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
+                reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
+            }
+            outPath->quadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+                    points->at(k + 0), points->at(k + 1));
+            ctrlPointX = reflectiveCtrlPointX;
+            ctrlPointY = reflectiveCtrlPointY;
+            currentX = points->at(k + 0);
+            currentY = points->at(k + 1);
+            break;
+        case 'a': // Draws an elliptical arc
+            // (rx ry x-axis-rotation large-arc-flag sweep-flag x y)
+            drawArc(outPath,
+                    currentX,
+                    currentY,
+                    points->at(k + 5) + currentX,
+                    points->at(k + 6) + currentY,
+                    points->at(k + 0),
+                    points->at(k + 1),
+                    points->at(k + 2),
+                    points->at(k + 3) != 0,
+                    points->at(k + 4) != 0);
+            currentX += points->at(k + 5);
+            currentY += points->at(k + 6);
+            ctrlPointX = currentX;
+            ctrlPointY = currentY;
+            break;
+        case 'A': // Draws an elliptical arc
+            drawArc(outPath,
+                    currentX,
+                    currentY,
+                    points->at(k + 5),
+                    points->at(k + 6),
+                    points->at(k + 0),
+                    points->at(k + 1),
+                    points->at(k + 2),
+                    points->at(k + 3) != 0,
+                    points->at(k + 4) != 0);
+            currentX = points->at(k + 5);
+            currentY = points->at(k + 6);
+            ctrlPointX = currentX;
+            ctrlPointY = currentY;
+            break;
+        default:
+            LOG_ALWAYS_FATAL("Unsupported command: %c", cmd);
+            break;
+        }
+        previousCmd = cmd;
+    }
+}
+
+} // namespace uirenderer
+} // namespace android
diff --git a/libs/hwui/utils/VectorDrawableUtils.h b/libs/hwui/utils/VectorDrawableUtils.h
new file mode 100644
index 0000000..21c1cdc
--- /dev/null
+++ b/libs/hwui/utils/VectorDrawableUtils.h
@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_HWUI_VECTORDRAWABLE_UTILS_H
+#define ANDROID_HWUI_VECTORDRAWABLE_UTILS_H
+
+#include "VectorDrawablePath.h"
+
+#include <cutils/compiler.h>
+#include "SkPath.h"
+#include <vector>
+
+namespace android {
+namespace uirenderer {
+
+class VectorDrawableUtils {
+public:
+    ANDROID_API static bool canMorph(const PathData& morphFrom, const PathData& morphTo);
+    ANDROID_API static bool interpolatePathData(PathData* outData, const PathData& morphFrom,
+            const PathData& morphTo, float fraction);
+    ANDROID_API static void verbsToPath(SkPath* outPath, const PathData& data);
+    static void interpolatePaths(PathData* outPathData, const PathData& from, const PathData& to,
+            float fraction);
+};
+} // namespace uirenderer
+} // namespace android
+#endif /* ANDROID_HWUI_VECTORDRAWABLE_UTILS_H*/
diff --git a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
index 0ee970d..91ac033 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
@@ -358,18 +358,6 @@
         return mState;
     }
 
-    public static abstract class DocumentsIntent {
-        /** Intent action name to open copy destination. */
-        public static String ACTION_OPEN_COPY_DESTINATION =
-                "com.android.documentsui.OPEN_COPY_DESTINATION";
-
-        /**
-         * Extra boolean flag for ACTION_OPEN_COPY_DESTINATION_STRING, which
-         * specifies if the destination directory needs to create new directory or not.
-         */
-        public static String EXTRA_DIRECTORY_COPY = "com.android.documentsui.DIRECTORY_COPY";
-    }
-
     void setDisplayAdvancedDevices(boolean display) {
         LocalPreferences.setDisplayAdvancedDevices(this, display);
         mState.showAdvanced = mState.forceAdvanced | display;
diff --git a/packages/DocumentsUI/src/com/android/documentsui/CopyService.java b/packages/DocumentsUI/src/com/android/documentsui/CopyService.java
index 55a123f..55e2f44 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/CopyService.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/CopyService.java
@@ -179,8 +179,7 @@
             if (mFailedFiles.size() > 0) {
                 Log.e(TAG, mFailedFiles.size() + " files failed to copy");
                 final Context context = getApplicationContext();
-                final Intent navigateIntent = new Intent(context, FilesActivity.class);
-                navigateIntent.putExtra(Shared.EXTRA_STACK, (Parcelable) stack);
+                final Intent navigateIntent = buildNavigateIntent(context, stack);
                 navigateIntent.putExtra(EXTRA_FAILURE, FAILURE_COPY);
                 navigateIntent.putExtra(EXTRA_TRANSFER_MODE, transferMode);
                 navigateIntent.putParcelableArrayListExtra(EXTRA_SRC_LIST, mFailedFiles);
@@ -228,8 +227,7 @@
         mIsCancelled = false;
 
         final Context context = getApplicationContext();
-        final Intent navigateIntent = new Intent(context, FilesActivity.class);
-        navigateIntent.putExtra(Shared.EXTRA_STACK, (Parcelable) stack);
+        final Intent navigateIntent = buildNavigateIntent(context, stack);
 
         final String contentTitle = getString(copying ? R.string.copy_notification_title
                 : R.string.move_notification_title);
@@ -592,4 +590,14 @@
             }
         }
     }
+
+    /**
+     * Creates an intent for navigating back to the destination directory.
+     */
+    private Intent buildNavigateIntent(Context context, DocumentStack stack) {
+        Intent intent = new Intent(context, FilesActivity.class);
+        intent.setAction(DocumentsContract.ACTION_BROWSE);
+        intent.putExtra(Shared.EXTRA_STACK, (Parcelable) stack);
+        return intent;
+    }
 }
diff --git a/packages/DocumentsUI/src/com/android/documentsui/DocumentsActivity.java b/packages/DocumentsUI/src/com/android/documentsui/DocumentsActivity.java
index 13c481c..e965050 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/DocumentsActivity.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/DocumentsActivity.java
@@ -19,7 +19,7 @@
 import static com.android.documentsui.State.ACTION_CREATE;
 import static com.android.documentsui.State.ACTION_GET_CONTENT;
 import static com.android.documentsui.State.ACTION_OPEN;
-import static com.android.documentsui.State.ACTION_OPEN_COPY_DESTINATION;
+import static com.android.documentsui.State.ACTION_PICK_COPY_DESTINATION;
 import static com.android.documentsui.State.ACTION_OPEN_TREE;
 import static com.android.documentsui.dirlist.DirectoryFragment.ANIM_NONE;
 
@@ -123,7 +123,7 @@
             final String title = getIntent().getStringExtra(Intent.EXTRA_TITLE);
             SaveFragment.show(getFragmentManager(), mimeType, title);
         } else if (mState.action == ACTION_OPEN_TREE ||
-                   mState.action == ACTION_OPEN_COPY_DESTINATION) {
+                   mState.action == ACTION_PICK_COPY_DESTINATION) {
             PickFragment.show(getFragmentManager());
         }
 
@@ -135,7 +135,7 @@
         } else if (mState.action == ACTION_OPEN ||
                    mState.action == ACTION_CREATE ||
                    mState.action == ACTION_OPEN_TREE ||
-                   mState.action == ACTION_OPEN_COPY_DESTINATION) {
+                   mState.action == ACTION_PICK_COPY_DESTINATION) {
             RootsFragment.show(getFragmentManager(), null);
         }
 
@@ -163,8 +163,8 @@
             state.action = ACTION_GET_CONTENT;
         } else if (Intent.ACTION_OPEN_DOCUMENT_TREE.equals(action)) {
             state.action = ACTION_OPEN_TREE;
-        } else if (DocumentsIntent.ACTION_OPEN_COPY_DESTINATION.equals(action)) {
-            state.action = ACTION_OPEN_COPY_DESTINATION;
+        } else if (Shared.ACTION_PICK_COPY_DESTINATION.equals(action)) {
+            state.action = ACTION_PICK_COPY_DESTINATION;
         }
 
         if (state.action == ACTION_OPEN || state.action == ACTION_GET_CONTENT) {
@@ -172,9 +172,9 @@
                     Intent.EXTRA_ALLOW_MULTIPLE, false);
         }
 
-        if (state.action == ACTION_OPEN_COPY_DESTINATION) {
+        if (state.action == ACTION_PICK_COPY_DESTINATION) {
             state.directoryCopy = intent.getBooleanExtra(
-                    BaseActivity.DocumentsIntent.EXTRA_DIRECTORY_COPY, false);
+                    Shared.EXTRA_DIRECTORY_COPY, false);
             state.transferMode = intent.getIntExtra(CopyService.EXTRA_TRANSFER_MODE,
                     CopyService.TRANSFER_MODE_COPY);
         }
@@ -257,7 +257,7 @@
                     mState.action == ACTION_OPEN_TREE) {
                     mRootsToolbar.setTitle(R.string.title_open);
                 } else if (mState.action == ACTION_CREATE ||
-                           mState.action == ACTION_OPEN_COPY_DESTINATION) {
+                           mState.action == ACTION_PICK_COPY_DESTINATION) {
                     mRootsToolbar.setTitle(R.string.title_save);
                 }
             }
@@ -324,7 +324,7 @@
         boolean recents = cwd == null;
         boolean picking = mState.action == ACTION_CREATE
                 || mState.action == ACTION_OPEN_TREE
-                || mState.action == ACTION_OPEN_COPY_DESTINATION;
+                || mState.action == ACTION_PICK_COPY_DESTINATION;
 
         createDir.setVisible(picking && !recents && cwd.isCreateSupported());
         mSearchManager.showMenu(!picking);
@@ -361,7 +361,7 @@
             // No directory means recents
             if (mState.action == ACTION_CREATE ||
                 mState.action == ACTION_OPEN_TREE ||
-                mState.action == ACTION_OPEN_COPY_DESTINATION) {
+                mState.action == ACTION_PICK_COPY_DESTINATION) {
                 RecentsCreateFragment.show(fm);
             } else {
                 DirectoryFragment.showRecentsOpen(fm, anim);
@@ -391,7 +391,7 @@
         }
 
         if (mState.action == ACTION_OPEN_TREE ||
-            mState.action == ACTION_OPEN_COPY_DESTINATION) {
+            mState.action == ACTION_PICK_COPY_DESTINATION) {
             final PickFragment pick = PickFragment.get(fm);
             if (pick != null) {
                 pick.setPickTarget(mState.action, mState.transferMode, cwd);
@@ -444,7 +444,7 @@
         if (mState.action == ACTION_OPEN_TREE) {
             result = DocumentsContract.buildTreeDocumentUri(
                     pickTarget.authority, pickTarget.documentId);
-        } else if (mState.action == ACTION_OPEN_COPY_DESTINATION) {
+        } else if (mState.action == ACTION_PICK_COPY_DESTINATION) {
             result = pickTarget.derivedUri;
         } else {
             // Should not be reached.
@@ -461,7 +461,7 @@
         final byte[] rawStack = DurableUtils.writeToArrayOrNull(mState.stack);
         if (mState.action == ACTION_CREATE ||
             mState.action == ACTION_OPEN_TREE ||
-            mState.action == ACTION_OPEN_COPY_DESTINATION) {
+            mState.action == ACTION_PICK_COPY_DESTINATION) {
             // Remember stack for last create
             values.clear();
             values.put(RecentColumns.KEY, mState.stack.buildKey());
@@ -500,7 +500,7 @@
                     | Intent.FLAG_GRANT_WRITE_URI_PERMISSION
                     | Intent.FLAG_GRANT_PERSISTABLE_URI_PERMISSION
                     | Intent.FLAG_GRANT_PREFIX_URI_PERMISSION);
-        } else if (mState.action == ACTION_OPEN_COPY_DESTINATION) {
+        } else if (mState.action == ACTION_PICK_COPY_DESTINATION) {
             // Picking a copy destination is only used internally by us, so we
             // don't need to extend permissions to the caller.
             intent.putExtra(Shared.EXTRA_STACK, (Parcelable) mState.stack);
diff --git a/packages/DocumentsUI/src/com/android/documentsui/PickFragment.java b/packages/DocumentsUI/src/com/android/documentsui/PickFragment.java
index 48e28dc..bbf4682 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/PickFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/PickFragment.java
@@ -110,7 +110,7 @@
                 mPick.setText(R.string.button_select);
                 mCancel.setVisibility(View.GONE);
                 break;
-            case State.ACTION_OPEN_COPY_DESTINATION:
+            case State.ACTION_PICK_COPY_DESTINATION:
                 mPick.setText(R.string.button_copy);
                 mCancel.setVisibility(View.VISIBLE);
                 break;
diff --git a/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java b/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
index 4fc3788..72ee6cbab 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/RootsCache.java
@@ -360,7 +360,7 @@
 
             // Exclude read-only devices when creating
             if (state.action == State.ACTION_CREATE && !supportsCreate) continue;
-            if (state.action == State.ACTION_OPEN_COPY_DESTINATION && !supportsCreate) continue;
+            if (state.action == State.ACTION_PICK_COPY_DESTINATION && !supportsCreate) continue;
             // Exclude roots that don't support directory picking
             if (state.action == State.ACTION_OPEN_TREE && !supportsIsChild) continue;
             // Exclude advanced devices when not requested
diff --git a/packages/DocumentsUI/src/com/android/documentsui/Shared.java b/packages/DocumentsUI/src/com/android/documentsui/Shared.java
index a4d6dc5..570c9bf 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/Shared.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/Shared.java
@@ -20,6 +20,16 @@
 
 /** @hide */
 public final class Shared {
+    /** Intent action name to pick a copy destination. */
+    public static final String ACTION_PICK_COPY_DESTINATION =
+            "com.android.documentsui.PICK_COPY_DESTINATION";
+
+    /**
+     * Extra boolean flag for {@link ACTION_PICK_COPY_DESTINATION}, which
+     * specifies if the destination directory needs to create new directory or not.
+     */
+    public static final String EXTRA_DIRECTORY_COPY = "com.android.documentsui.DIRECTORY_COPY";
+
     public static final boolean DEBUG = true;
     public static final String TAG = "Documents";
     public static final String EXTRA_STACK = "com.android.documentsui.STACK";
diff --git a/packages/DocumentsUI/src/com/android/documentsui/State.java b/packages/DocumentsUI/src/com/android/documentsui/State.java
index 4306a0e..49a1e66 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/State.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/State.java
@@ -75,7 +75,7 @@
     public static final int ACTION_OPEN_TREE = 4;
     public static final int ACTION_MANAGE = 5;
     public static final int ACTION_BROWSE = 6;
-    public static final int ACTION_OPEN_COPY_DESTINATION = 8;
+    public static final int ACTION_PICK_COPY_DESTINATION = 8;
 
     public static final int MODE_UNKNOWN = 0;
     public static final int MODE_LIST = 1;
@@ -150,4 +150,4 @@
             return new State[size];
         }
     };
-}
\ No newline at end of file
+}
diff --git a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
index 21420c8..18dd8c8 100644
--- a/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
+++ b/packages/DocumentsUI/src/com/android/documentsui/dirlist/DirectoryFragment.java
@@ -111,8 +111,8 @@
 import com.android.documentsui.State;
 import com.android.documentsui.ThumbnailCache;
 import com.android.documentsui.BaseActivity.DocumentContext;
-import com.android.documentsui.BaseActivity.DocumentsIntent;
 import com.android.documentsui.ProviderExecutor.Preemptable;
+import com.android.documentsui.Shared;
 import com.android.documentsui.RecentsProvider.StateColumns;
 import com.android.documentsui.dirlist.MultiSelectManager.Callback;
 import com.android.documentsui.dirlist.MultiSelectManager.Selection;
@@ -897,7 +897,7 @@
         // Pop up a dialog to pick a destination.  This is inadequate but works for now.
         // TODO: Implement a picker that is to spec.
         final Intent intent = new Intent(
-                BaseActivity.DocumentsIntent.ACTION_OPEN_COPY_DESTINATION,
+                Shared.ACTION_PICK_COPY_DESTINATION,
                 Uri.EMPTY,
                 getActivity(),
                 DocumentsActivity.class);
@@ -914,7 +914,7 @@
                         break;
                     }
                 }
-                intent.putExtra(BaseActivity.DocumentsIntent.EXTRA_DIRECTORY_COPY, directoryCopy);
+                intent.putExtra(Shared.EXTRA_DIRECTORY_COPY, directoryCopy);
                 intent.putExtra(CopyService.EXTRA_TRANSFER_MODE, mode);
                 startActivityForResult(intent, REQUEST_COPY_DESTINATION);
             }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
index f0f8161..7c0676f 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsProvider.java
@@ -31,6 +31,7 @@
 import android.provider.DocumentsProvider;
 import android.util.Log;
 
+import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.io.FileNotFoundException;
@@ -59,6 +60,7 @@
 
     private MtpManager mMtpManager;
     private ContentResolver mResolver;
+    @GuardedBy("mDeviceToolkits")
     private Map<Integer, DeviceToolkit> mDeviceToolkits;
     private RootScanner mRootScanner;
     private Resources mResources;
@@ -222,9 +224,11 @@
 
     @Override
     public void onTrimMemory(int level) {
-      for (final DeviceToolkit toolkit : mDeviceToolkits.values()) {
-          toolkit.mDocumentLoader.clearCompletedTasks();
-      }
+        synchronized (mDeviceToolkits) {
+            for (final DeviceToolkit toolkit : mDeviceToolkits.values()) {
+                toolkit.mDocumentLoader.clearCompletedTasks();
+            }
+        }
     }
 
     @Override
@@ -254,21 +258,28 @@
     }
 
     void openDevice(int deviceId) throws IOException {
-        mMtpManager.openDevice(deviceId);
-        mDeviceToolkits.put(deviceId, new DeviceToolkit(mMtpManager, mResolver, mDatabase));
-        mRootScanner.scanNow();
+        synchronized (mDeviceToolkits) {
+            mMtpManager.openDevice(deviceId);
+            mDeviceToolkits.put(deviceId, new DeviceToolkit(mMtpManager, mResolver, mDatabase));
+        }
+        mRootScanner.resume();
     }
 
-    void closeDevice(int deviceId) throws IOException {
+    void closeDevice(int deviceId) throws IOException, InterruptedException {
         // TODO: Flush the device before closing (if not closed externally).
-        getDeviceToolkit(deviceId).mDocumentLoader.clearTasks();
-        mDeviceToolkits.remove(deviceId);
-        mDatabase.removeDeviceRows(deviceId);
-        mMtpManager.closeDevice(deviceId);
+        synchronized (mDeviceToolkits) {
+            getDeviceToolkit(deviceId).mDocumentLoader.clearTasks();
+            mDeviceToolkits.remove(deviceId);
+            mDatabase.removeDeviceRows(deviceId);
+            mMtpManager.closeDevice(deviceId);
+        }
         mRootScanner.notifyChange();
+        if (!hasOpenedDevices()) {
+            mRootScanner.pause();
+        }
     }
 
-    void close() throws InterruptedException {
+    synchronized void closeAllDevices() throws InterruptedException {
         boolean closed = false;
         for (int deviceId : mMtpManager.getOpenedDeviceIds()) {
             try {
@@ -282,15 +293,30 @@
         }
         if (closed) {
             mRootScanner.notifyChange();
+            mRootScanner.pause();
         }
-        mRootScanner.close();
-        mDatabase.close();
     }
 
     boolean hasOpenedDevices() {
         return mMtpManager.getOpenedDeviceIds().length != 0;
     }
 
+    /**
+     * Finalize the content provider for unit tests.
+     */
+    @Override
+    public void shutdown() {
+        try {
+            closeAllDevices();
+        } catch (InterruptedException e) {
+            // It should fail unit tests by throwing runtime exception.
+            throw new RuntimeException(e.getMessage());
+        } finally {
+            mDatabase.close();
+            super.shutdown();
+        }
+    }
+
     private void notifyChildDocumentsChange(String parentDocumentId) {
         mResolver.notifyChange(
                 DocumentsContract.buildChildDocumentsUri(AUTHORITY, parentDocumentId),
@@ -299,11 +325,13 @@
     }
 
     private DeviceToolkit getDeviceToolkit(int deviceId) throws FileNotFoundException {
-        final DeviceToolkit toolkit = mDeviceToolkits.get(deviceId);
-        if (toolkit == null) {
-            throw new FileNotFoundException();
+        synchronized (mDeviceToolkits) {
+            final DeviceToolkit toolkit = mDeviceToolkits.get(deviceId);
+            if (toolkit == null) {
+                throw new FileNotFoundException();
+            }
+            return toolkit;
         }
-        return toolkit;
     }
 
     private PipeManager getPipeManager(Identifier identifier) throws FileNotFoundException {
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
index 2d1af26..723dc14 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/MtpDocumentsService.java
@@ -67,10 +67,10 @@
                 provider.openDevice(device.getDeviceId());
                 return START_STICKY;
             } catch (IOException error) {
-                Log.d(MtpDocumentsProvider.TAG, error.getMessage());
+                Log.e(MtpDocumentsProvider.TAG, error.getMessage());
             }
         } else {
-            Log.d(MtpDocumentsProvider.TAG, "Received unknown intent action.");
+            Log.w(MtpDocumentsProvider.TAG, "Received unknown intent action.");
         }
         stopSelfIfNeeded();
         return Service.START_NOT_STICKY;
@@ -82,7 +82,7 @@
         unregisterReceiver(mReceiver);
         mReceiver = null;
         try {
-            provider.close();
+            provider.closeAllDevices();
         } catch (InterruptedException e) {
             Log.e(MtpDocumentsProvider.TAG, e.getMessage());
         }
@@ -105,8 +105,8 @@
                 final MtpDocumentsProvider provider = MtpDocumentsProvider.getInstance();
                 try {
                     provider.closeDevice(device.getDeviceId());
-                } catch (IOException error) {
-                    Log.d(MtpDocumentsProvider.TAG, error.getMessage());
+                } catch (IOException | InterruptedException error) {
+                    Log.e(MtpDocumentsProvider.TAG, error.getMessage());
                 }
                 stopSelfIfNeeded();
             }
diff --git a/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java b/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
index d9ed4ab..b0962dd 100644
--- a/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
+++ b/packages/MtpDocumentsProvider/src/com/android/mtp/RootScanner.java
@@ -9,6 +9,10 @@
 import android.util.Log;
 
 import java.io.IOException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.FutureTask;
+import java.util.concurrent.TimeUnit;
 
 final class RootScanner {
     /**
@@ -27,13 +31,18 @@
      */
     private final static long SHORT_POLLING_TIMES = 10;
 
+    /**
+     * Milliseconds we wait for background thread when pausing.
+     */
+    private final static long AWAIT_TERMINATION_TIMEOUT = 2000;
+
     final ContentResolver mResolver;
     final Resources mResources;
     final MtpManager mManager;
     final MtpDatabase mDatabase;
-    boolean mClosed = false;
-    int mPollingCount;
-    Thread mBackgroundThread;
+
+    ExecutorService mExecutor;
+    FutureTask<Void> mCurrentTask;
 
     RootScanner(
             ContentResolver resolver,
@@ -46,6 +55,9 @@
         mDatabase = database;
     }
 
+    /**
+     * Notifies a change of the roots list via ContentResolver.
+     */
     void notifyChange() {
         final Uri uri =
                 DocumentsContract.buildRootsUri(MtpDocumentsProvider.AUTHORITY);
@@ -56,74 +68,81 @@
      * Starts to check new changes right away.
      * If the background thread has already gone, it restarts another background thread.
      */
-    synchronized void scanNow() {
-        if (mClosed) {
+    synchronized void resume() {
+        if (mExecutor == null) {
+            // Only single thread updates the database.
+            mExecutor = Executors.newSingleThreadExecutor();
+        }
+        if (mCurrentTask != null) {
+            // Cancel previous task.
+            mCurrentTask.cancel(true);
+        }
+        mCurrentTask = new FutureTask<Void>(new UpdateRootsRunnable(), null);
+        mExecutor.submit(mCurrentTask);
+    }
+
+    /**
+     * Stops background thread and wait for its termination.
+     * @throws InterruptedException
+     */
+    synchronized void pause() throws InterruptedException {
+        if (mExecutor == null) {
             return;
         }
-        mPollingCount = 0;
-        if (mBackgroundThread == null) {
-            mBackgroundThread = new BackgroundLoaderThread();
-            mBackgroundThread.start();
-        } else {
-            notify();
+        mExecutor.shutdownNow();
+        if (!mExecutor.awaitTermination(AWAIT_TERMINATION_TIMEOUT, TimeUnit.MILLISECONDS)) {
+            Log.e(MtpDocumentsProvider.TAG, "Failed to terminate RootScanner's background thread.");
         }
+        mExecutor = null;
     }
 
-    void close() throws InterruptedException {
-        Thread thread;
-        synchronized (this) {
-            mClosed = true;
-            thread = mBackgroundThread;
-            if (mBackgroundThread == null) {
-                return;
-            }
-            notify();
-        }
-        thread.join();
-    }
-
-    private final class BackgroundLoaderThread extends Thread {
+    /**
+     * Runnable to scan roots and update the database information.
+     */
+    private final class UpdateRootsRunnable implements Runnable {
         @Override
         public void run() {
             Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND);
-            synchronized (RootScanner.this) {
-                while (!mClosed) {
-                    final int[] deviceIds = mManager.getOpenedDeviceIds();
-                    if (deviceIds.length == 0) {
-                        break;
-                    }
-                    boolean changed = false;
-                    for (int deviceId : deviceIds) {
+            int pollingCount = 0;
+            while (!Thread.interrupted()) {
+                final int[] deviceIds = mManager.getOpenedDeviceIds();
+                if (deviceIds.length == 0) {
+                    return;
+                }
+                boolean changed = false;
+                for (int deviceId : deviceIds) {
+                    try {
+                        final MtpRoot[] roots = mManager.getRoots(deviceId);
                         mDatabase.startAddingRootDocuments(deviceId);
                         try {
-                            changed = mDatabase.putRootDocuments(
-                                    deviceId, mResources, mManager.getRoots(deviceId)) || changed;
-                        } catch (IOException|SQLiteException exp) {
-                            // The error may happen on the device. We would like to continue getting
-                            // roots for other devices.
-                            Log.e(MtpDocumentsProvider.TAG, exp.getMessage());
-                            continue;
+                            if (mDatabase.putRootDocuments(deviceId, mResources, roots)) {
+                                changed = true;
+                            }
                         } finally {
-                            changed = mDatabase.stopAddingRootDocuments(deviceId) || changed;
+                            if (mDatabase.stopAddingRootDocuments(deviceId)) {
+                                changed = true;
+                            }
                         }
-                    }
-                    if (changed) {
-                        notifyChange();
-                    }
-                    mPollingCount++;
-                    try {
-                        // Use SHORT_POLLING_PERIOD for the first SHORT_POLLING_TIMES because it is
-                        // more likely to add new root just after the device is added.
-                        // TODO: Use short interval only for a device that is just added.
-                        RootScanner.this.wait(
-                                mPollingCount > SHORT_POLLING_TIMES ?
-                                        LONG_POLLING_INTERVAL : SHORT_POLLING_INTERVAL);
-                    } catch (InterruptedException exception) {
-                        break;
+                    } catch (IOException | SQLiteException exception) {
+                        // The error may happen on the device. We would like to continue getting
+                        // roots for other devices.
+                        Log.e(MtpDocumentsProvider.TAG, exception.getMessage());
                     }
                 }
-
-                mBackgroundThread = null;
+                if (changed) {
+                    notifyChange();
+                }
+                pollingCount++;
+                try {
+                    // Use SHORT_POLLING_PERIOD for the first SHORT_POLLING_TIMES because it is
+                    // more likely to add new root just after the device is added.
+                    // TODO: Use short interval only for a device that is just added.
+                    Thread.sleep(pollingCount > SHORT_POLLING_TIMES ?
+                        LONG_POLLING_INTERVAL : SHORT_POLLING_INTERVAL);
+                } catch (InterruptedException exp) {
+                    // The while condition handles the interrupted flag.
+                    continue;
+                }
             }
         }
     }
diff --git a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
index 82e08cd..cabb08d 100644
--- a/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
+++ b/packages/MtpDocumentsProvider/tests/src/com/android/mtp/MtpDocumentsProviderTest.java
@@ -49,11 +49,7 @@
 
     @Override
     public void tearDown() {
-        try {
-            mProvider.close();
-        } catch (InterruptedException e) {
-            fail();
-        }
+        mProvider.shutdown();
     }
 
     public void testOpenAndCloseDevice() throws Exception {
diff --git a/packages/SettingsLib/src/com/android/settingslib/accounts/AuthenticatorHelper.java b/packages/SettingsLib/src/com/android/settingslib/accounts/AuthenticatorHelper.java
new file mode 100644
index 0000000..ef511bb
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/accounts/AuthenticatorHelper.java
@@ -0,0 +1,269 @@
+/*
+ * 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.settingslib.accounts;
+
+import android.accounts.Account;
+import android.accounts.AccountManager;
+import android.accounts.AuthenticatorDescription;
+import android.content.BroadcastReceiver;
+import android.content.ContentResolver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentFilter;
+import android.content.SyncAdapterType;
+import android.content.pm.PackageManager;
+import android.content.res.Resources;
+import android.graphics.drawable.Drawable;
+import android.os.AsyncTask;
+import android.os.UserHandle;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ * Helper class for monitoring accounts on the device for a given user.
+ *
+ * Classes using this helper should implement {@link OnAccountsUpdateListener}.
+ * {@link OnAccountsUpdateListener#onAccountsUpdate(UserHandle)} will then be
+ * called once accounts get updated. For setting up listening for account
+ * updates, {@link #listenToAccountUpdates()} and
+ * {@link #stopListeningToAccountUpdates()} should be used.
+ */
+final public class AuthenticatorHelper extends BroadcastReceiver {
+    private static final String TAG = "AuthenticatorHelper";
+
+    private final Map<String, AuthenticatorDescription> mTypeToAuthDescription = new HashMap<>();
+    private final ArrayList<String> mEnabledAccountTypes = new ArrayList<>();
+    private final Map<String, Drawable> mAccTypeIconCache = new HashMap<>();
+    private final HashMap<String, ArrayList<String>> mAccountTypeToAuthorities = new HashMap<>();
+
+    private final UserHandle mUserHandle;
+    private final Context mContext;
+    private final OnAccountsUpdateListener mListener;
+    private boolean mListeningToAccountUpdates;
+
+    public interface OnAccountsUpdateListener {
+        void onAccountsUpdate(UserHandle userHandle);
+    }
+
+    public AuthenticatorHelper(Context context, UserHandle userHandle,
+            OnAccountsUpdateListener listener) {
+        mContext = context;
+        mUserHandle = userHandle;
+        mListener = listener;
+        // This guarantees that the helper is ready to use once constructed: the account types and
+        // authorities are initialized
+        onAccountsUpdated(null);
+    }
+
+    public String[] getEnabledAccountTypes() {
+        return mEnabledAccountTypes.toArray(new String[mEnabledAccountTypes.size()]);
+    }
+
+    public void preloadDrawableForType(final Context context, final String accountType) {
+        new AsyncTask<Void, Void, Void>() {
+            @Override
+            protected Void doInBackground(Void... params) {
+                getDrawableForType(context, accountType);
+                return null;
+            }
+        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void[]) null);
+    }
+
+    /**
+     * Gets an icon associated with a particular account type. If none found, return null.
+     * @param accountType the type of account
+     * @return a drawable for the icon or a default icon returned by
+     * {@link PackageManager#getDefaultActivityIcon} if one cannot be found.
+     */
+    public Drawable getDrawableForType(Context context, final String accountType) {
+        Drawable icon = null;
+        synchronized (mAccTypeIconCache) {
+            if (mAccTypeIconCache.containsKey(accountType)) {
+                return mAccTypeIconCache.get(accountType);
+            }
+        }
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+            try {
+                AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+                Context authContext = context.createPackageContextAsUser(desc.packageName, 0,
+                        mUserHandle);
+                icon = mContext.getPackageManager().getUserBadgedIcon(
+                        authContext.getDrawable(desc.iconId), mUserHandle);
+                synchronized (mAccTypeIconCache) {
+                    mAccTypeIconCache.put(accountType, icon);
+                }
+            } catch (PackageManager.NameNotFoundException|Resources.NotFoundException e) {
+                // Ignore
+            }
+        }
+        if (icon == null) {
+            icon = context.getPackageManager().getDefaultActivityIcon();
+        }
+        return icon;
+    }
+
+    /**
+     * Gets the label associated with a particular account type. If none found, return null.
+     * @param accountType the type of account
+     * @return a CharSequence for the label or null if one cannot be found.
+     */
+    public CharSequence getLabelForType(Context context, final String accountType) {
+        CharSequence label = null;
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+            try {
+                AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+                Context authContext = context.createPackageContextAsUser(desc.packageName, 0,
+                        mUserHandle);
+                label = authContext.getResources().getText(desc.labelId);
+            } catch (PackageManager.NameNotFoundException e) {
+                Log.w(TAG, "No label name for account type " + accountType);
+            } catch (Resources.NotFoundException e) {
+                Log.w(TAG, "No label icon for account type " + accountType);
+            }
+        }
+        return label;
+    }
+
+    /**
+     * Gets the package associated with a particular account type. If none found, return null.
+     * @param accountType the type of account
+     * @return the package name or null if one cannot be found.
+     */
+    public String getPackageForType(final String accountType) {
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+            AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+            return desc.packageName;
+        }
+        return null;
+    }
+
+    /**
+     * Gets the resource id of the label associated with a particular account type. If none found,
+     * return -1.
+     * @param accountType the type of account
+     * @return a resource id for the label or -1 if none found;
+     */
+    public int getLabelIdForType(final String accountType) {
+        if (mTypeToAuthDescription.containsKey(accountType)) {
+            AuthenticatorDescription desc = mTypeToAuthDescription.get(accountType);
+            return desc.labelId;
+        }
+        return -1;
+    }
+
+    /**
+     * Updates provider icons. Subclasses should call this in onCreate()
+     * and update any UI that depends on AuthenticatorDescriptions in onAuthDescriptionsUpdated().
+     */
+    public void updateAuthDescriptions(Context context) {
+        AuthenticatorDescription[] authDescs = AccountManager.get(context)
+                .getAuthenticatorTypesAsUser(mUserHandle.getIdentifier());
+        for (int i = 0; i < authDescs.length; i++) {
+            mTypeToAuthDescription.put(authDescs[i].type, authDescs[i]);
+        }
+    }
+
+    public boolean containsAccountType(String accountType) {
+        return mTypeToAuthDescription.containsKey(accountType);
+    }
+
+    public AuthenticatorDescription getAccountTypeDescription(String accountType) {
+        return mTypeToAuthDescription.get(accountType);
+    }
+
+    public boolean hasAccountPreferences(final String accountType) {
+        if (containsAccountType(accountType)) {
+            AuthenticatorDescription desc = getAccountTypeDescription(accountType);
+            if (desc != null && desc.accountPreferencesId != 0) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    void onAccountsUpdated(Account[] accounts) {
+        updateAuthDescriptions(mContext);
+        if (accounts == null) {
+            accounts = AccountManager.get(mContext).getAccountsAsUser(mUserHandle.getIdentifier());
+        }
+        mEnabledAccountTypes.clear();
+        mAccTypeIconCache.clear();
+        for (int i = 0; i < accounts.length; i++) {
+            final Account account = accounts[i];
+            if (!mEnabledAccountTypes.contains(account.type)) {
+                mEnabledAccountTypes.add(account.type);
+            }
+        }
+        buildAccountTypeToAuthoritiesMap();
+        if (mListeningToAccountUpdates) {
+            mListener.onAccountsUpdate(mUserHandle);
+        }
+    }
+
+    @Override
+    public void onReceive(final Context context, final Intent intent) {
+        // TODO: watch for package upgrades to invalidate cache; see http://b/7206643
+        final Account[] accounts = AccountManager.get(mContext)
+                .getAccountsAsUser(mUserHandle.getIdentifier());
+        onAccountsUpdated(accounts);
+    }
+
+    public void listenToAccountUpdates() {
+        if (!mListeningToAccountUpdates) {
+            IntentFilter intentFilter = new IntentFilter();
+            intentFilter.addAction(AccountManager.LOGIN_ACCOUNTS_CHANGED_ACTION);
+            // At disk full, certain actions are blocked (such as writing the accounts to storage).
+            // It is useful to also listen for recovery from disk full to avoid bugs.
+            intentFilter.addAction(Intent.ACTION_DEVICE_STORAGE_OK);
+            mContext.registerReceiverAsUser(this, mUserHandle, intentFilter, null, null);
+            mListeningToAccountUpdates = true;
+        }
+    }
+
+    public void stopListeningToAccountUpdates() {
+        if (mListeningToAccountUpdates) {
+            mContext.unregisterReceiver(this);
+            mListeningToAccountUpdates = false;
+        }
+    }
+
+    public ArrayList<String> getAuthoritiesForAccountType(String type) {
+        return mAccountTypeToAuthorities.get(type);
+    }
+
+    private void buildAccountTypeToAuthoritiesMap() {
+        mAccountTypeToAuthorities.clear();
+        SyncAdapterType[] syncAdapters = ContentResolver.getSyncAdapterTypesAsUser(
+                mUserHandle.getIdentifier());
+        for (int i = 0, n = syncAdapters.length; i < n; i++) {
+            final SyncAdapterType sa = syncAdapters[i];
+            ArrayList<String> authorities = mAccountTypeToAuthorities.get(sa.accountType);
+            if (authorities == null) {
+                authorities = new ArrayList<String>();
+                mAccountTypeToAuthorities.put(sa.accountType, authorities);
+            }
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG, "Added authority " + sa.authority + " to accountType "
+                        + sa.accountType);
+            }
+            authorities.add(sa.authority);
+        }
+    }
+}
diff --git a/packages/SettingsLib/src/com/android/settingslib/widget/AnimatedImageView.java b/packages/SettingsLib/src/com/android/settingslib/widget/AnimatedImageView.java
new file mode 100644
index 0000000..f5e39be
--- /dev/null
+++ b/packages/SettingsLib/src/com/android/settingslib/widget/AnimatedImageView.java
@@ -0,0 +1,100 @@
+/*
+ * 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.settingslib.widget;
+
+import android.content.Context;
+import android.graphics.drawable.AnimatedRotateDrawable;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.View;
+import android.widget.ImageView;
+
+public class AnimatedImageView extends ImageView {
+    private AnimatedRotateDrawable mDrawable;
+    private boolean mAnimating;
+
+    public AnimatedImageView(Context context) {
+        super(context);
+    }
+
+    public AnimatedImageView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    private void updateDrawable() {
+        if (isShown() && mDrawable != null) {
+            mDrawable.stop();
+        }
+        final Drawable drawable = getDrawable();
+        if (drawable instanceof AnimatedRotateDrawable) {
+            mDrawable = (AnimatedRotateDrawable) drawable;
+            // TODO: define in drawable xml once we have public attrs.
+            mDrawable.setFramesCount(56);
+            mDrawable.setFramesDuration(32);
+            if (isShown() && mAnimating) {
+                mDrawable.start();
+            }
+        } else {
+            mDrawable = null;
+        }
+    }
+
+    private void updateAnimating() {
+        if (mDrawable != null) {
+            if (isShown() && mAnimating) {
+                mDrawable.start();
+            } else {
+                mDrawable.stop();
+            }
+        }
+    }
+
+    @Override
+    public void setImageDrawable(Drawable drawable) {
+        super.setImageDrawable(drawable);
+        updateDrawable();
+    }
+
+    @Override
+    public void setImageResource(int resid) {
+        super.setImageResource(resid);
+        updateDrawable();
+    }
+
+    @Override
+    public void onAttachedToWindow() {
+        super.onAttachedToWindow();
+        updateAnimating();
+    }
+
+    @Override
+    public void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
+        updateAnimating();
+    }
+
+    public void setAnimating(boolean animating) {
+        mAnimating = animating;
+        updateAnimating();
+    }
+
+    @Override
+    protected void onVisibilityChanged(View changedView, int vis) {
+        super.onVisibilityChanged(changedView, vis);
+        updateAnimating();
+    }
+}
diff --git a/packages/Shell/res/values/strings.xml b/packages/Shell/res/values/strings.xml
index 3db0848..4469d38 100644
--- a/packages/Shell/res/values/strings.xml
+++ b/packages/Shell/res/values/strings.xml
@@ -33,4 +33,8 @@
 
     <!-- Title for documents backend that offers bugreports. -->
     <string name="bugreport_storage_title">Bug reports</string>
+
+    <!-- Toast message sent when the bugreport file could be read. -->
+    <string name="bugreport_unreadable_text">Bug report file could not be read</string>
+
 </resources>
diff --git a/packages/Shell/src/com/android/shell/BugreportReceiver.java b/packages/Shell/src/com/android/shell/BugreportReceiver.java
index e90a3b5..c264372 100644
--- a/packages/Shell/src/com/android/shell/BugreportReceiver.java
+++ b/packages/Shell/src/com/android/shell/BugreportReceiver.java
@@ -37,6 +37,7 @@
 import android.text.format.DateUtils;
 import android.util.Log;
 import android.util.Patterns;
+import android.widget.Toast;
 
 import com.google.android.collect.Lists;
 import libcore.io.Streams;
@@ -105,6 +106,13 @@
      */
     private void triggerLocalNotification(final Context context, final File bugreportFile,
             final File screenshotFile) {
+        if (!bugreportFile.exists() || !bugreportFile.canRead()) {
+            Log.e(TAG, "Could not read bugreport file " + bugreportFile);
+            Toast.makeText(context, context.getString(R.string.bugreport_unreadable_text),
+                    Toast.LENGTH_LONG).show();
+            return;
+        }
+
         boolean isPlainText = bugreportFile.getName().toLowerCase().endsWith(".txt");
         if (!isPlainText) {
             // Already zipped, send it right away.
@@ -141,10 +149,12 @@
         intent.putExtra(Intent.EXTRA_TEXT, messageBody);
         final ClipData clipData = new ClipData(null, new String[] { mimeType },
                 new ClipData.Item(null, null, null, bugreportUri));
-        clipData.addItem(new ClipData.Item(null, null, null, screenshotUri));
+        final ArrayList<Uri> attachments = Lists.newArrayList(bugreportUri);
+        if (screenshotUri != null) {
+            clipData.addItem(new ClipData.Item(null, null, null, screenshotUri));
+            attachments.add(screenshotUri);
+        }
         intent.setClipData(clipData);
-
-        final ArrayList<Uri> attachments = Lists.newArrayList(bugreportUri, screenshotUri);
         intent.putParcelableArrayListExtra(Intent.EXTRA_STREAM, attachments);
 
         final Account sendToAccount = findSendToAccount(context);
@@ -162,8 +172,8 @@
             File screenshotFile) {
         // Files are kept on private storage, so turn into Uris that we can
         // grant temporary permissions for.
-        final Uri bugreportUri = FileProvider.getUriForFile(context, AUTHORITY, bugreportFile);
-        final Uri screenshotUri = FileProvider.getUriForFile(context, AUTHORITY, screenshotFile);
+        final Uri bugreportUri = getUri(context, bugreportFile);
+        final Uri screenshotUri = getUri(context, screenshotFile);
 
         Intent sendIntent = buildSendIntent(context, bugreportUri, screenshotUri);
         Intent notifIntent;
@@ -272,6 +282,10 @@
         return foundAccount;
     }
 
+    private static Uri getUri(Context context, File file) {
+        return file != null ? FileProvider.getUriForFile(context, AUTHORITY, file) : null;
+    }
+
     private static File getFileExtra(Intent intent, String key) {
         final String path = intent.getStringExtra(key);
         if (path != null) {
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index b4bb392..4e24d54 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -421,6 +421,8 @@
         if (state.startHidden) {
             state.startHidden = false;
             mRecentsView.setStackViewVisibility(View.INVISIBLE);
+        } else {
+            mRecentsView.setStackViewVisibility(View.VISIBLE);
         }
     }
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
index fe67fd9..965e7a67 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
@@ -239,7 +239,8 @@
             SystemServicesProxy ssp, Resources res) {
         Bitmap tdIcon = iconBitmap != null
                 ? iconBitmap
-                : ActivityManager.TaskDescription.loadTaskDescriptionIcon(iconFilename);
+                : ActivityManager.TaskDescription.loadTaskDescriptionIcon(iconFilename,
+                        taskKey.userId);
         if (tdIcon != null) {
             return ssp.getBadgedIcon(new BitmapDrawable(res, tdIcon), taskKey.userId);
         }
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 4ecb80a..66ece52 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsTransitionHelper.java
@@ -31,7 +31,6 @@
 import android.view.IAppTransitionAnimationSpecsFuture;
 import android.view.WindowManagerGlobal;
 import com.android.internal.annotations.GuardedBy;
-import com.android.systemui.recents.Constants;
 import com.android.systemui.recents.ExitRecentsWindowFirstAnimationFrameEvent;
 import com.android.systemui.recents.Recents;
 import com.android.systemui.recents.RecentsDebugFlags;
@@ -93,7 +92,7 @@
             final boolean lockToTask, final Rect bounds, int destinationStack) {
         final ActivityOptions opts = ActivityOptions.makeBasic();
         if (bounds != null) {
-            opts.setBounds(bounds.isEmpty() ? null : bounds);
+            opts.setLaunchBounds(bounds.isEmpty() ? null : bounds);
         }
 
         final ActivityOptions.OnAnimationStartedListener animStartedListener;
diff --git a/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java b/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
index 9e3cf37..e6a291c 100644
--- a/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
+++ b/packages/SystemUI/src/com/android/systemui/screenshot/GlobalScreenshot.java
@@ -594,7 +594,9 @@
 
         // Setup the animation with the screenshot just taken
         if (mScreenshotAnimation != null) {
-            mScreenshotAnimation.end();
+            if (mScreenshotAnimation.isStarted()) {
+                mScreenshotAnimation.end();
+            }
             mScreenshotAnimation.removeAllListeners();
         }
 
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
index d3d9bef..f8ab35f 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
@@ -2161,13 +2161,10 @@
         boolean isHighPriority = sbn.getScore() >= INTERRUPTION_THRESHOLD;
         boolean isFullscreen = notification.fullScreenIntent != null;
         boolean hasTicker = mHeadsUpTicker && !TextUtils.isEmpty(notification.tickerText);
-        boolean isAllowed = notification.extras.getInt(Notification.EXTRA_AS_HEADS_UP,
-                Notification.HEADS_UP_ALLOWED) != Notification.HEADS_UP_NEVER;
         boolean accessibilityForcesLaunch = isFullscreen
                 && mAccessibilityManager.isTouchExplorationEnabled();
         boolean justLaunchedFullScreenIntent = entry.hasJustLaunchedFullScreenIntent();
         boolean interrupt = (isFullscreen || (isHighPriority && (isNoisy || hasTicker)))
-                && isAllowed
                 && !accessibilityForcesLaunch
                 && !justLaunchedFullScreenIntent
                 && mPowerManager.isScreenOn()
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationData.java b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationData.java
index 4328e24..83dbde5 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/NotificationData.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/NotificationData.java
@@ -105,36 +105,29 @@
         }
 
         public boolean cacheContentViews(Context ctx, Notification updatedNotification) {
-            boolean cached = false;
+            boolean applyInPlace = false;
             if (updatedNotification != null) {
                 final Notification.Builder updatedNotificationBuilder
                         = Notification.Builder.recoverBuilder(ctx, updatedNotification);
                 final RemoteViews newContentView = updatedNotificationBuilder.makeContentView();
-                if (!compareRemoteViews(cachedContentView, newContentView)) {
-                    cachedContentView = newContentView;
-                    cached |= true;
-                }
                 final RemoteViews newBigContentView =
                         updatedNotificationBuilder.makeBigContentView();
-                if (!compareRemoteViews(cachedBigContentView, newBigContentView)) {
-                    cachedBigContentView = newBigContentView;
-                    cached |= true;
-                }
                 final RemoteViews newHeadsUpContentView =
                         updatedNotificationBuilder.makeHeadsUpContentView();
-                if (!compareRemoteViews(cachedHeadsUpContentView, newBigContentView)) {
-                    cachedHeadsUpContentView = newHeadsUpContentView;
-                    cached |= true;
-                }
                 final Notification updatedPublicNotification = updatedNotification.publicVersion;
                 final RemoteViews newPubContentView = (updatedPublicNotification != null)
                         ? Notification.Builder.recoverBuilder(
                                 ctx, updatedPublicNotification).makeContentView()
                         : null;
-                if (!compareRemoteViews(cachedPublicContentView, newPubContentView)) {
-                    cachedPublicContentView = newPubContentView;
-                    cached |= true;
-                }
+
+                applyInPlace = compareRemoteViews(cachedContentView, newContentView)
+                        && compareRemoteViews(cachedBigContentView, newBigContentView)
+                        && compareRemoteViews(cachedHeadsUpContentView, newHeadsUpContentView)
+                        && compareRemoteViews(cachedPublicContentView, newPubContentView);
+                cachedPublicContentView = newPubContentView;
+                cachedHeadsUpContentView = newHeadsUpContentView;
+                cachedBigContentView = newBigContentView;
+                cachedContentView = newContentView;
             } else {
                 final Notification.Builder builder
                         = Notification.Builder.recoverBuilder(ctx, notification.getNotification());
@@ -150,9 +143,9 @@
                             = Notification.Builder.recoverBuilder(ctx, publicNotification);
                     cachedPublicContentView = publicBuilder.makeContentView();
                 }
-                cached = true;
+                applyInPlace = false;
             }
-            return cached;
+            return applyInPlace;
         }
 
         // Returns true if the RemoteViews are the same.
diff --git a/services/core/java/com/android/server/InputMethodManagerService.java b/services/core/java/com/android/server/InputMethodManagerService.java
index d404a42..40f7c5c 100644
--- a/services/core/java/com/android/server/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/InputMethodManagerService.java
@@ -30,6 +30,7 @@
 import com.android.internal.view.IInputMethodSession;
 import com.android.internal.view.IInputSessionCallback;
 import com.android.internal.view.InputBindResult;
+import com.android.internal.view.InputMethodClient;
 import com.android.server.statusbar.StatusBarManagerService;
 
 import org.xmlpull.v1.XmlPullParser;
@@ -160,8 +161,8 @@
     static final int MSG_START_INPUT = 2000;
     static final int MSG_RESTART_INPUT = 2010;
 
-    static final int MSG_UNBIND_METHOD = 3000;
-    static final int MSG_BIND_METHOD = 3010;
+    static final int MSG_UNBIND_CLIENT = 3000;
+    static final int MSG_BIND_CLIENT = 3010;
     static final int MSG_SET_ACTIVE = 3020;
     static final int MSG_SET_INTERACTIVE = 3030;
     static final int MSG_SET_USER_ACTION_NOTIFICATION_SEQUENCE_NUMBER = 3040;
@@ -935,7 +936,7 @@
                 || (newLocale != null && !newLocale.equals(mLastSystemLocale))) {
             if (!updateOnlyWhenLocaleChanged) {
                 hideCurrentInputLocked(0, null);
-                resetCurrentMethodAndClient();
+                resetCurrentMethodAndClient(InputMethodClient.UNBIND_REASON_RESET_IME);
             }
             if (DEBUG) {
                 Slog.i(TAG, "Locale has been changed to " + newLocale);
@@ -1195,6 +1196,9 @@
             ClientState cs = mClients.remove(client.asBinder());
             if (cs != null) {
                 clearClientSessionLocked(cs);
+                if (mCurClient == cs) {
+                    mCurClient = null;
+                }
             }
         }
     }
@@ -1208,7 +1212,8 @@
          }
     }
 
-    void unbindCurrentClientLocked() {
+    void unbindCurrentClientLocked(
+            /* @InputMethodClient.UnbindReason */ final int unbindClientReason) {
         if (mCurClient != null) {
             if (DEBUG) Slog.v(TAG, "unbindCurrentInputLocked: client = "
                     + mCurClient.client.asBinder());
@@ -1222,8 +1227,8 @@
 
             executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
                     MSG_SET_ACTIVE, 0, mCurClient));
-            executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
-                    MSG_UNBIND_METHOD, mCurSeq, mCurClient.client));
+            executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIIO(
+                    MSG_UNBIND_CLIENT, mCurSeq, unbindClientReason, mCurClient.client));
             mCurClient.sessionRequested = false;
             mCurClient = null;
 
@@ -1324,7 +1329,7 @@
             mCurClientInKeyguard = isKeyguardLocked();
             // If the client is changing, we need to switch over to the new
             // one.
-            unbindCurrentClientLocked();
+            unbindCurrentClientLocked(InputMethodClient.UNBIND_REASON_SWITCH_CLIENT);
             if (DEBUG) Slog.v(TAG, "switching to client: client = "
                     + cs.client.asBinder() + " keyguard=" + mCurClientInKeyguard);
 
@@ -1479,7 +1484,7 @@
                     InputBindResult res = attachNewInputLocked(true);
                     if (res.method != null) {
                         executeOrSendMessage(mCurClient.client, mCaller.obtainMessageOO(
-                                MSG_BIND_METHOD, mCurClient.client, res));
+                                MSG_BIND_CLIENT, mCurClient.client, res));
                     }
                     return;
                 }
@@ -1518,10 +1523,11 @@
         clearCurMethodLocked();
     }
 
-    void resetCurrentMethodAndClient() {
+    void resetCurrentMethodAndClient(
+            /* @InputMethodClient.UnbindReason */ final int unbindClientReason) {
         mCurMethodId = null;
         unbindCurrentMethodLocked(false);
-        unbindCurrentClientLocked();
+        unbindCurrentClientLocked(unbindClientReason);
     }
 
     void requestClientSessionLocked(ClientState cs) {
@@ -1588,8 +1594,9 @@
                 mShowRequested = mInputShown;
                 mInputShown = false;
                 if (mCurClient != null) {
-                    executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIO(
-                            MSG_UNBIND_METHOD, mCurSeq, mCurClient.client));
+                    executeOrSendMessage(mCurClient.client, mCaller.obtainMessageIIO(
+                            MSG_UNBIND_CLIENT, InputMethodClient.UNBIND_REASON_DISCONNECT_IME,
+                            mCurSeq, mCurClient.client));
                 }
             }
         }
@@ -1874,12 +1881,12 @@
                 setInputMethodLocked(id, mSettings.getSelectedInputMethodSubtypeId(id));
             } catch (IllegalArgumentException e) {
                 Slog.w(TAG, "Unknown input method from prefs: " + id, e);
-                resetCurrentMethodAndClient();
+                resetCurrentMethodAndClient(InputMethodClient.UNBIND_REASON_SWITCH_IME_FAILED);
             }
             mShortcutInputMethodsAndSubtypes.clear();
         } else {
             // There is no longer an input method set, so stop any current one.
-            resetCurrentMethodAndClient();
+            resetCurrentMethodAndClient(InputMethodClient.UNBIND_REASON_NO_IME);
         }
         // Here is not the perfect place to reset the switching controller. Ideally
         // mSwitchingController and mSettings should be able to share the same state.
@@ -1965,7 +1972,7 @@
                 intent.putExtra("input_method_id", id);
                 mContext.sendBroadcastAsUser(intent, UserHandle.CURRENT);
             }
-            unbindCurrentClientLocked();
+            unbindCurrentClientLocked(InputMethodClient.UNBIND_REASON_SWITCH_IME);
         } finally {
             Binder.restoreCallingIdentity(ident);
         }
@@ -2769,14 +2776,14 @@
 
             // ---------------------------------------------------------
 
-            case MSG_UNBIND_METHOD:
+            case MSG_UNBIND_CLIENT:
                 try {
-                    ((IInputMethodClient)msg.obj).onUnbindMethod(msg.arg1);
+                    ((IInputMethodClient)msg.obj).onUnbindMethod(msg.arg1, msg.arg2);
                 } catch (RemoteException e) {
                     // There is nothing interesting about the last client dying.
                 }
                 return true;
-            case MSG_BIND_METHOD: {
+            case MSG_BIND_CLIENT: {
                 args = (SomeArgs)msg.obj;
                 IInputMethodClient client = (IInputMethodClient)args.arg1;
                 InputBindResult res = (InputBindResult)args.arg2;
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index 9ac4ba3..37d47c3 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -88,6 +88,7 @@
 import java.io.File;
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
+import java.security.GeneralSecurityException;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.text.SimpleDateFormat;
@@ -114,6 +115,7 @@
 public class AccountManagerService
         extends IAccountManager.Stub
         implements RegisteredServicesCacheListener<AuthenticatorDescription> {
+
     private static final String TAG = "AccountManagerService";
 
     private static final String DATABASE_NAME = "accounts.db";
@@ -2283,6 +2285,193 @@
         }
     }
 
+    @Override
+    public void startAddAccountSession(final IAccountManagerResponse response, final String accountType,
+            final String authTokenType, final String[] requiredFeatures,
+            final boolean expectActivityLaunch,
+            final Bundle optionsIn) {
+        if (Log.isLoggable(TAG, Log.VERBOSE)) {
+            Log.v(TAG,
+                    "startAddAccountSession: accountType " + accountType
+                    + ", response " + response
+                    + ", authTokenType " + authTokenType
+                    + ", requiredFeatures " + stringArrayToString(requiredFeatures)
+                    + ", expectActivityLaunch " + expectActivityLaunch
+                    + ", caller's uid " + Binder.getCallingUid()
+                    + ", pid " + Binder.getCallingPid());
+        }
+        if (response == null) {
+            throw new IllegalArgumentException("response is null");
+        }
+        if (accountType == null) {
+            throw new IllegalArgumentException("accountType is null");
+        }
+
+        int userId = Binder.getCallingUserHandle().getIdentifier();
+        if (!canUserModifyAccounts(userId)) {
+            try {
+                response.onError(AccountManager.ERROR_CODE_USER_RESTRICTED,
+                        "User is not allowed to add an account!");
+            } catch (RemoteException re) {
+            }
+            showCantAddAccount(AccountManager.ERROR_CODE_USER_RESTRICTED, userId);
+            return;
+        }
+        if (!canUserModifyAccountsForType(userId, accountType)) {
+            try {
+                response.onError(AccountManager.ERROR_CODE_MANAGEMENT_DISABLED_FOR_ACCOUNT_TYPE,
+                        "User cannot modify accounts of this type (policy).");
+            } catch (RemoteException re) {
+            }
+            showCantAddAccount(AccountManager.ERROR_CODE_MANAGEMENT_DISABLED_FOR_ACCOUNT_TYPE,
+                    userId);
+            return;
+        }
+
+        final int pid = Binder.getCallingPid();
+        final int uid = Binder.getCallingUid();
+        final Bundle options = (optionsIn == null) ? new Bundle() : optionsIn;
+        options.putInt(AccountManager.KEY_CALLER_UID, uid);
+        options.putInt(AccountManager.KEY_CALLER_PID, pid);
+
+        int usrId = UserHandle.getCallingUserId();
+        long identityToken = clearCallingIdentity();
+        try {
+            UserAccounts accounts = getUserAccounts(usrId);
+            logRecordWithUid(accounts, DebugDbHelper.ACTION_CALLED_START_ACCOUNT_ADD,
+                    TABLE_ACCOUNTS, uid);
+            new StartAccountSession(accounts, response, accountType, expectActivityLaunch,
+                    null /* accountName */, false /* authDetailsRequired */,
+                    true /* updateLastAuthenticationTime */) {
+                @Override
+                public void run() throws RemoteException {
+                    mAuthenticator.startAddAccountSession(this, mAccountType, authTokenType,
+                            requiredFeatures, options);
+                }
+
+                @Override
+                protected String toDebugString(long now) {
+                    String requiredFeaturesStr = TextUtils.join(",", requiredFeatures);
+                    return super.toDebugString(now) + ", startAddAccountSession" + ", accountType "
+                            + accountType + ", requiredFeatures "
+                            + (requiredFeatures != null ? requiredFeaturesStr : null);
+                }
+            }.bind();
+        } finally {
+            restoreCallingIdentity(identityToken);
+        }
+    }
+
+    /** Session that will encrypt the KEY_ACCOUNT_SESSION_BUNDLE in result. */
+    private abstract class StartAccountSession extends Session {
+
+        public StartAccountSession(UserAccounts accounts, IAccountManagerResponse response,
+                String accountType, boolean expectActivityLaunch, String accountName,
+                boolean authDetailsRequired, boolean updateLastAuthenticationTime) {
+            super(accounts, response, accountType, expectActivityLaunch,
+                    true /* stripAuthTokenFromResult */, accountName, authDetailsRequired,
+                    updateLastAuthenticationTime);
+        }
+
+        @Override
+        public void onResult(Bundle result) {
+            mNumResults++;
+            Intent intent = null;
+
+            if (result != null
+                    && (intent = result.getParcelable(AccountManager.KEY_INTENT)) != null) {
+                /*
+                 * The Authenticator API allows third party authenticators to
+                 * supply arbitrary intents to other apps that they can run,
+                 * this can be very bad when those apps are in the system like
+                 * the System Settings.
+                 */
+                int authenticatorUid = Binder.getCallingUid();
+                long bid = Binder.clearCallingIdentity();
+                try {
+                    PackageManager pm = mContext.getPackageManager();
+                    ResolveInfo resolveInfo = pm.resolveActivityAsUser(intent, 0, mAccounts.userId);
+                    int targetUid = resolveInfo.activityInfo.applicationInfo.uid;
+                    if (PackageManager.SIGNATURE_MATCH != pm.checkSignatures(authenticatorUid,
+                            targetUid)) {
+                        throw new SecurityException("Activity to be started with KEY_INTENT must "
+                                + "share Authenticator's signatures");
+                    }
+                } finally {
+                    Binder.restoreCallingIdentity(bid);
+                }
+            }
+
+            IAccountManagerResponse response;
+            if (mExpectActivityLaunch && result != null
+                    && result.containsKey(AccountManager.KEY_INTENT)) {
+                response = mResponse;
+            } else {
+                response = getResponseAndClose();
+            }
+            if (response == null) {
+                return;
+            }
+            if (result == null) {
+                if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                    Log.v(TAG, getClass().getSimpleName() + " calling onError() on response "
+                            + response);
+                }
+                sendErrorResponse(response, AccountManager.ERROR_CODE_INVALID_RESPONSE,
+                        "null bundle returned");
+                return;
+            }
+
+            if ((result.getInt(AccountManager.KEY_ERROR_CODE, -1) > 0) && (intent == null)) {
+                // All AccountManager error codes are greater
+                // than 0
+                sendErrorResponse(response, result.getInt(AccountManager.KEY_ERROR_CODE),
+                        result.getString(AccountManager.KEY_ERROR_MESSAGE));
+                return;
+            }
+
+            // Strip auth token from result.
+            result.remove(AccountManager.KEY_AUTHTOKEN);
+
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG,
+                        getClass().getSimpleName() + " calling onResult() on response " + response);
+            }
+
+            // Get the session bundle created by authenticator. The
+            // bundle contains data necessary for finishing the session
+            // later. The session bundle will be encrypted here and
+            // decrypted later when trying to finish the session.
+            Bundle sessionBundle = result.getBundle(AccountManager.KEY_ACCOUNT_SESSION_BUNDLE);
+            if (sessionBundle != null) {
+                String accountType = sessionBundle.getString(AccountManager.KEY_ACCOUNT_TYPE);
+                if (TextUtils.isEmpty(accountType)
+                        && !mAccountType.equalsIgnoreCase(mAccountType)) {
+                    Log.w(TAG, "Account type in session bundle doesn't match request.");
+                }
+                // Add accountType info to session bundle. This will
+                // override any value set by authenticator.
+                sessionBundle.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccountType);
+
+                // Encrypt session bundle before returning to caller.
+                try {
+                    CryptoHelper cryptoHelper = CryptoHelper.getInstance();
+                    Bundle encryptedBundle = cryptoHelper.encryptBundle(sessionBundle);
+                    result.putBundle(AccountManager.KEY_ACCOUNT_SESSION_BUNDLE, encryptedBundle);
+                } catch (GeneralSecurityException e) {
+                    if (Log.isLoggable(TAG, Log.DEBUG)) {
+                        Log.v(TAG, "Failed to encrypt session bundle!", e);
+                    }
+                    sendErrorResponse(response, AccountManager.ERROR_CODE_INVALID_RESPONSE,
+                            "failed to encrypt session bundle");
+                    return;
+                }
+            }
+
+            sendResponse(response, result);
+        }
+    }
+
     private void showCantAddAccount(int errorCode, int userId) {
         Intent cantAddAccount = new Intent(mContext, CantAddAccountActivity.class);
         cantAddAccount.putExtra(CantAddAccountActivity.EXTRA_ERROR_CODE, errorCode);
@@ -3336,6 +3525,11 @@
         private static String ACTION_CALLED_ACCOUNT_ADD = "action_called_account_add";
         private static String ACTION_CALLED_ACCOUNT_REMOVE = "action_called_account_remove";
 
+        // TODO: This action doesn't add account to accountdb. Account is only
+        // added in finishAddAccount or finishAddAccountAsUser which may be in
+        // a different user profile.
+        private static String ACTION_CALLED_START_ACCOUNT_ADD = "action_called_start_account_add";
+
         private static SimpleDateFormat dateFromat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
 
         private static void createDebugTable(SQLiteDatabase db) {
@@ -4300,4 +4494,29 @@
             return mContext;
         }
     }
+
+    private void sendResponse(IAccountManagerResponse response, Bundle result) {
+        try {
+            response.onResult(result);
+        } catch (RemoteException e) {
+            // if the caller is dead then there is no one to care about remote
+            // exceptions
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG, "failure while notifying response", e);
+            }
+        }
+    }
+
+    private void sendErrorResponse(IAccountManagerResponse response, int errorCode,
+            String errorMessage) {
+        try {
+            response.onError(errorCode, errorMessage);
+        } catch (RemoteException e) {
+            // if the caller is dead then there is no one to care about remote
+            // exceptions
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG, "failure while notifying response", e);
+            }
+        }
+    }
 }
diff --git a/services/core/java/com/android/server/accounts/CryptoHelper.java b/services/core/java/com/android/server/accounts/CryptoHelper.java
new file mode 100644
index 0000000..2b59b74
--- /dev/null
+++ b/services/core/java/com/android/server/accounts/CryptoHelper.java
@@ -0,0 +1,140 @@
+package com.android.server.accounts;
+
+import android.annotation.NonNull;
+import android.annotation.Nullable;
+import android.os.Bundle;
+import android.os.Parcel;
+import android.util.Log;
+
+import com.android.internal.util.Preconditions;
+
+import java.security.GeneralSecurityException;
+import java.security.NoSuchAlgorithmException;
+import java.security.SecureRandom;
+import java.util.Arrays;
+
+import javax.crypto.Cipher;
+import javax.crypto.KeyGenerator;
+import javax.crypto.Mac;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+
+/**
+ * A crypto helper for encrypting and decrypting bundle with in-memory symmetric
+ * key for {@link AccountManagerService}.
+ */
+/* default */ class CryptoHelper {
+    private static final String TAG = "Account";
+
+    private static final String KEY_CIPHER = "cipher";
+    private static final String KEY_MAC = "mac";
+    private static final String KEY_ALGORITHM = "AES";
+    private static final String CIPHER_ALGORITHM = "AES/CBC/PKCS5Padding";
+    private static final String MAC_ALGORITHM = "HMACSHA256";
+    private static final int IV_LENGTH = 16;
+
+    private static CryptoHelper sInstance;
+    // Keys used for encrypting and decrypting data returned in a Bundle.
+    private final SecretKeySpec mCipherKeySpec;
+    private final SecretKeySpec mMacKeySpec;
+    private final IvParameterSpec mIv;
+
+    /* default */ synchronized static CryptoHelper getInstance() throws NoSuchAlgorithmException {
+        if (sInstance == null) {
+            sInstance = new CryptoHelper();
+        }
+        return sInstance;
+    }
+
+    private CryptoHelper() throws NoSuchAlgorithmException {
+        KeyGenerator kgen = KeyGenerator.getInstance(KEY_ALGORITHM);
+        SecretKey skey = kgen.generateKey();
+        mCipherKeySpec = new SecretKeySpec(skey.getEncoded(), KEY_ALGORITHM);
+
+        kgen = KeyGenerator.getInstance(MAC_ALGORITHM);
+        skey = kgen.generateKey();
+        mMacKeySpec = new SecretKeySpec(skey.getEncoded(), MAC_ALGORITHM);
+
+        // Create random iv
+        byte[] iv = new byte[IV_LENGTH];
+        SecureRandom secureRandom = new SecureRandom();
+        secureRandom.nextBytes(iv);
+        mIv = new IvParameterSpec(iv);
+    }
+
+    @NonNull
+    /* default */ Bundle encryptBundle(@NonNull Bundle bundle) throws GeneralSecurityException {
+        Preconditions.checkNotNull(bundle, "Cannot encrypt null bundle.");
+        Parcel parcel = Parcel.obtain();
+        bundle.writeToParcel(parcel, 0);
+        byte[] bytes = parcel.marshall();
+        parcel.recycle();
+
+        Bundle encryptedBundle = new Bundle();
+
+        byte[] cipher = encrypt(bytes);
+        byte[] mac = createMac(cipher);
+
+        encryptedBundle.putByteArray(KEY_CIPHER, cipher);
+        encryptedBundle.putByteArray(KEY_MAC, mac);
+
+        return encryptedBundle;
+    }
+
+    @Nullable
+    /* default */ Bundle decryptBundle(@NonNull Bundle bundle) throws GeneralSecurityException {
+        Preconditions.checkNotNull(bundle, "Cannot decrypt null bundle.");
+        byte[] cipherArray = bundle.getByteArray(KEY_CIPHER);
+        byte[] macArray = bundle.getByteArray(KEY_MAC);
+
+        if (!verifyMac(cipherArray, macArray)) {
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG, "Escrow mac mismatched!");
+            }
+            return null;
+        }
+
+        Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
+        cipher.init(Cipher.DECRYPT_MODE, mCipherKeySpec, mIv);
+        byte[] decryptedBytes = cipher.doFinal(cipherArray);
+
+        Parcel decryptedParcel = Parcel.obtain();
+        decryptedParcel.unmarshall(decryptedBytes, 0, decryptedBytes.length);
+        decryptedParcel.setDataPosition(0);
+        Bundle decryptedBundle = new Bundle();
+        decryptedBundle.readFromParcel(decryptedParcel);
+        decryptedParcel.recycle();
+        return decryptedBundle;
+    }
+
+    private boolean verifyMac(@Nullable byte[] cipherArray, @Nullable byte[] macArray)
+            throws GeneralSecurityException {
+
+        if (cipherArray == null || cipherArray.length == 0 || macArray == null
+                || macArray.length == 0) {
+            if (Log.isLoggable(TAG, Log.VERBOSE)) {
+                Log.v(TAG, "Cipher or MAC is empty!");
+            }
+            return false;
+        }
+        Mac mac = Mac.getInstance(MAC_ALGORITHM);
+        mac.init(mMacKeySpec);
+        mac.update(cipherArray);
+        return Arrays.equals(macArray, mac.doFinal());
+    }
+
+    @NonNull
+    private byte[] encrypt(@NonNull byte[] data) throws GeneralSecurityException {
+        Cipher cipher = Cipher.getInstance(CIPHER_ALGORITHM);
+        cipher.init(Cipher.ENCRYPT_MODE, mCipherKeySpec, mIv);
+        return cipher.doFinal(data);
+    }
+
+    @NonNull
+    private byte[] createMac(@NonNull byte[] cipher) throws GeneralSecurityException {
+        Mac mac = Mac.getInstance(MAC_ALGORITHM);
+        mac.init(mMacKeySpec);
+        return mac.doFinal(cipher);
+    }
+}
diff --git a/services/core/java/com/android/server/am/ActiveServices.java b/services/core/java/com/android/server/am/ActiveServices.java
index 4d05f9a..17b3d2a 100755
--- a/services/core/java/com/android/server/am/ActiveServices.java
+++ b/services/core/java/com/android/server/am/ActiveServices.java
@@ -1094,15 +1094,20 @@
                 }
                 r = smap.mServicesByName.get(name);
                 if (r == null && createIfNeeded) {
-                    // Before going further -- if this app is not allowed to run in the background,
-                    // then at this point we aren't going to let it period.
-                    if (!mAm.checkAllowBackgroundLocked(sInfo.applicationInfo.uid,
-                            sInfo.packageName, callingPid)) {
-                        Slog.w(TAG, "Background execution not allowed: service "
-                                + r.intent + " to " + name.flattenToShortString()
-                                + " from pid=" + callingPid + " uid=" + callingUid
-                                + " pkg=" + callingPackage);
-                        return null;
+                    final long token = Binder.clearCallingIdentity();
+                    try {
+                        // Before going further -- if this app is not allowed to run in the
+                        // background, then at this point we aren't going to let it period.
+                        if (!mAm.checkAllowBackgroundLocked(sInfo.applicationInfo.uid,
+                                sInfo.packageName, callingPid)) {
+                            Slog.w(TAG, "Background execution not allowed: service "
+                                    + r.intent + " to " + name.flattenToShortString()
+                                    + " from pid=" + callingPid + " uid=" + callingUid
+                                    + " pkg=" + callingPackage);
+                            return null;
+                        }
+                    } finally {
+                        Binder.restoreCallingIdentity(token);
                     }
 
                     Intent.FilterComparison filter
diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java
index 6e6bfb7..92e16c7 100644
--- a/services/core/java/com/android/server/am/ActivityManagerService.java
+++ b/services/core/java/com/android/server/am/ActivityManagerService.java
@@ -16,72 +16,8 @@
 
 package com.android.server.am;
 
-import static android.Manifest.permission.INTERACT_ACROSS_USERS;
-import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
-import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
-import static android.app.ActivityManager.StackId.DOCKED_STACK_ID;
-import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
-import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
-import static android.app.ActivityManager.StackId.HOME_STACK_ID;
-import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
-import static android.app.ActivityManager.RESIZE_MODE_PRESERVE_WINDOW;
-import static android.content.pm.PackageManager.PERMISSION_GRANTED;
-import static com.android.internal.util.XmlUtils.readBooleanAttribute;
-import static com.android.internal.util.XmlUtils.readIntAttribute;
-import static com.android.internal.util.XmlUtils.readLongAttribute;
-import static com.android.internal.util.XmlUtils.writeBooleanAttribute;
-import static com.android.internal.util.XmlUtils.writeIntAttribute;
-import static com.android.internal.util.XmlUtils.writeLongAttribute;
-import static com.android.server.Watchdog.NATIVE_STACKS_OF_INTEREST;
-import static com.android.server.am.ActivityManagerDebugConfig.*;
-import static com.android.server.am.ActivityStackSupervisor.FORCE_FOCUS;
-import static com.android.server.am.ActivityStackSupervisor.ON_TOP;
-import static com.android.server.am.ActivityStackSupervisor.RESTORE_FROM_RECENTS;
-import static com.android.server.am.ActivityStackSupervisor.PRESERVE_WINDOWS;
-import static com.android.server.am.TaskRecord.INVALID_TASK_ID;
-import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK;
-import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE_PRIV;
-import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE;
-import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
-import static org.xmlpull.v1.XmlPullParser.START_TAG;
-
-import android.Manifest;
-import android.app.ActivityManager.StackId;
-import android.app.AppOpsManager;
-import android.app.ApplicationThreadNative;
-import android.app.BroadcastOptions;
-import android.app.IActivityContainer;
-import android.app.IActivityContainerCallback;
-import android.app.IAppTask;
-import android.app.ITaskStackListener;
-import android.app.ProfilerInfo;
-import android.app.assist.AssistContent;
-import android.app.assist.AssistStructure;
-import android.app.usage.UsageEvents;
-import android.app.usage.UsageStatsManagerInternal;
-import android.appwidget.AppWidgetManager;
-import android.content.pm.PermissionInfo;
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Point;
-import android.graphics.Rect;
-import android.os.BatteryStats;
-import android.os.PersistableBundle;
-import android.os.PowerManager;
-import android.os.ResultReceiver;
-import android.os.Trace;
-import android.os.TransactionTooLargeException;
-import android.os.WorkSource;
-import android.os.storage.IMountService;
-import android.os.storage.MountServiceInternal;
-import android.os.storage.StorageManager;
-import android.provider.Settings.Global;
-import android.service.voice.IVoiceInteractionSession;
-import android.service.voice.VoiceInteractionSession;
-import android.util.ArrayMap;
-import android.util.ArraySet;
-import android.util.DebugUtils;
-import android.view.Display;
+import com.google.android.collect.Lists;
+import com.google.android.collect.Maps;
 
 import com.android.internal.R;
 import com.android.internal.annotations.GuardedBy;
@@ -118,19 +54,16 @@
 import com.android.server.statusbar.StatusBarManagerInternal;
 import com.android.server.wm.AppTransition;
 import com.android.server.wm.WindowManagerService;
-import com.google.android.collect.Lists;
-import com.google.android.collect.Maps;
-
-import libcore.io.IoUtils;
-import libcore.util.EmptyArray;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
 
+import android.Manifest;
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityManager.RunningTaskInfo;
+import android.app.ActivityManager.StackId;
 import android.app.ActivityManager.StackInfo;
 import android.app.ActivityManager.TaskThumbnailInfo;
 import android.app.ActivityManagerInternal;
@@ -140,24 +73,37 @@
 import android.app.ActivityThread;
 import android.app.AlertDialog;
 import android.app.AppGlobals;
+import android.app.AppOpsManager;
 import android.app.ApplicationErrorReport;
+import android.app.ApplicationThreadNative;
+import android.app.BroadcastOptions;
 import android.app.Dialog;
+import android.app.IActivityContainer;
+import android.app.IActivityContainerCallback;
 import android.app.IActivityController;
+import android.app.IAppTask;
 import android.app.IApplicationThread;
 import android.app.IInstrumentationWatcher;
 import android.app.INotificationManager;
 import android.app.IProcessObserver;
 import android.app.IServiceConnection;
 import android.app.IStopUserCallback;
-import android.app.IUidObserver;
+import android.app.ITaskStackListener;
 import android.app.IUiAutomationConnection;
+import android.app.IUidObserver;
 import android.app.IUserSwitchObserver;
 import android.app.Instrumentation;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
-import android.app.backup.IBackupManager;
+import android.app.ProfilerInfo;
 import android.app.admin.DevicePolicyManager;
+import android.app.assist.AssistContent;
+import android.app.assist.AssistStructure;
+import android.app.backup.IBackupManager;
+import android.app.usage.UsageEvents;
+import android.app.usage.UsageStatsManagerInternal;
+import android.appwidget.AppWidgetManager;
 import android.content.ActivityNotFoundException;
 import android.content.BroadcastReceiver;
 import android.content.ClipData;
@@ -181,18 +127,24 @@
 import android.content.pm.InstrumentationInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.ParceledListSlice;
-import android.content.pm.UserInfo;
 import android.content.pm.PackageManager.NameNotFoundException;
+import android.content.pm.ParceledListSlice;
 import android.content.pm.PathPermission;
+import android.content.pm.PermissionInfo;
 import android.content.pm.ProviderInfo;
 import android.content.pm.ResolveInfo;
 import android.content.pm.ServiceInfo;
+import android.content.pm.UserInfo;
 import android.content.res.CompatibilityInfo;
 import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.Point;
+import android.graphics.Rect;
 import android.net.Proxy;
 import android.net.ProxyInfo;
 import android.net.Uri;
+import android.os.BatteryStats;
 import android.os.Binder;
 import android.os.Build;
 import android.os.Bundle;
@@ -210,21 +162,35 @@
 import android.os.Message;
 import android.os.Parcel;
 import android.os.ParcelFileDescriptor;
+import android.os.PersistableBundle;
+import android.os.PowerManager;
 import android.os.PowerManagerInternal;
 import android.os.Process;
 import android.os.RemoteCallbackList;
 import android.os.RemoteException;
+import android.os.ResultReceiver;
 import android.os.ServiceManager;
 import android.os.StrictMode;
 import android.os.SystemClock;
 import android.os.SystemProperties;
+import android.os.Trace;
+import android.os.TransactionTooLargeException;
 import android.os.UpdateLock;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.os.WorkSource;
+import android.os.storage.IMountService;
+import android.os.storage.MountServiceInternal;
+import android.os.storage.StorageManager;
 import android.provider.Settings;
+import android.service.voice.IVoiceInteractionSession;
+import android.service.voice.VoiceInteractionSession;
 import android.text.format.DateUtils;
 import android.text.format.Time;
+import android.util.ArrayMap;
+import android.util.ArraySet;
 import android.util.AtomicFile;
+import android.util.DebugUtils;
 import android.util.EventLog;
 import android.util.Log;
 import android.util.Pair;
@@ -233,13 +199,12 @@
 import android.util.SparseArray;
 import android.util.TimeUtils;
 import android.util.Xml;
+import android.view.Display;
 import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.WindowManager;
 
-import dalvik.system.VMRuntime;
-
 import java.io.BufferedInputStream;
 import java.io.BufferedOutputStream;
 import java.io.DataInputStream;
@@ -269,6 +234,100 @@
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicLong;
 
+import dalvik.system.VMRuntime;
+import libcore.io.IoUtils;
+import libcore.util.EmptyArray;
+
+import static android.Manifest.permission.INTERACT_ACROSS_USERS;
+import static android.Manifest.permission.INTERACT_ACROSS_USERS_FULL;
+import static android.Manifest.permission.START_TASKS_FROM_RECENTS;
+import static android.app.ActivityManager.RESIZE_MODE_PRESERVE_WINDOW;
+import static android.app.ActivityManager.StackId.DOCKED_STACK_ID;
+import static android.app.ActivityManager.StackId.FREEFORM_WORKSPACE_STACK_ID;
+import static android.app.ActivityManager.StackId.FULLSCREEN_WORKSPACE_STACK_ID;
+import static android.app.ActivityManager.StackId.HOME_STACK_ID;
+import static android.app.ActivityManager.StackId.INVALID_STACK_ID;
+import static android.content.pm.PackageManager.FEATURE_FREEFORM_WINDOW_MANAGEMENT;
+import static android.content.pm.PackageManager.PERMISSION_GRANTED;
+import static android.provider.Settings.Global.ALWAYS_FINISH_ACTIVITIES;
+import static android.provider.Settings.Global.DEBUG_APP;
+import static android.provider.Settings.Global.DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES;
+import static android.provider.Settings.Global.DEVELOPMENT_FORCE_RTL;
+import static android.provider.Settings.Global.WAIT_FOR_DEBUGGER;
+import static com.android.internal.util.XmlUtils.readBooleanAttribute;
+import static com.android.internal.util.XmlUtils.readIntAttribute;
+import static com.android.internal.util.XmlUtils.readLongAttribute;
+import static com.android.internal.util.XmlUtils.writeBooleanAttribute;
+import static com.android.internal.util.XmlUtils.writeIntAttribute;
+import static com.android.internal.util.XmlUtils.writeLongAttribute;
+import static com.android.server.Watchdog.NATIVE_STACKS_OF_INTEREST;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ALL;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BACKUP;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_BACKGROUND;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_BROADCAST_LIGHT;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CLEANUP;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_CONFIGURATION;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_FOCUS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_IMMERSIVE;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKSCREEN;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LRU;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_MU;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_OOM_ADJ;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_POWER_QUICK;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESSES;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROCESS_OBSERVERS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PROVIDER;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_PSS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RECENTS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SERVICE;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_STACK;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_SWITCH;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_UID_OBSERVERS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_URI_PERMISSION;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_USAGE_STATS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_VISIBILITY;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_VISIBLE_BEHIND;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BACKUP;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_BROADCAST;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CLEANUP;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_CONFIGURATION;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_FOCUS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_IMMERSIVE;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKSCREEN;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LRU;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_MU;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_OOM_ADJ;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_POWER;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROCESSES;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROCESS_OBSERVERS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PROVIDER;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_PSS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SERVICE;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_STACK;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_SWITCH;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_UID_OBSERVERS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_URI_PERMISSION;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_VISIBILITY;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_VISIBLE_BEHIND;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
+import static com.android.server.am.ActivityStackSupervisor.FORCE_FOCUS;
+import static com.android.server.am.ActivityStackSupervisor.ON_TOP;
+import static com.android.server.am.ActivityStackSupervisor.PRESERVE_WINDOWS;
+import static com.android.server.am.ActivityStackSupervisor.RESTORE_FROM_RECENTS;
+import static com.android.server.am.TaskRecord.INVALID_TASK_ID;
+import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_DONT_LOCK;
+import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_LAUNCHABLE_PRIV;
+import static com.android.server.am.TaskRecord.LOCK_TASK_AUTH_PINNABLE;
+import static org.xmlpull.v1.XmlPullParser.END_DOCUMENT;
+import static org.xmlpull.v1.XmlPullParser.START_TAG;
+
 public final class ActivityManagerService extends ActivityManagerNative
         implements Watchdog.Monitor, BatteryStatsImpl.BatteryCallback {
 
@@ -1211,7 +1270,8 @@
     String mOrigDebugApp = null;
     boolean mOrigWaitForDebugger = false;
     boolean mAlwaysFinishActivities = false;
-    boolean mForceResizableActivites;
+    boolean mForceResizableActivities;
+    boolean mSupportsFreeformWindowManagement;
     IActivityController mController = null;
     String mProfileApp = null;
     ProcessRecord mProfileProc = null;
@@ -8827,12 +8887,19 @@
     }
 
     @Override
-    public Bitmap getTaskDescriptionIcon(String filename) {
-        if (!FileUtils.isValidExtFilename(filename)
-                || !filename.contains(ActivityRecord.ACTIVITY_ICON_SUFFIX)) {
-            throw new IllegalArgumentException("Bad filename: " + filename);
+    public Bitmap getTaskDescriptionIcon(String filePath, int userId) {
+        if (userId != UserHandle.getCallingUserId()) {
+            enforceCallingPermission(android.Manifest.permission.INTERACT_ACROSS_USERS_FULL,
+                    "getTaskDescriptionIcon");
         }
-        return mTaskPersister.getTaskDescriptionIcon(filename);
+        final File passedIconFile = new File(filePath);
+        final File legitIconFile = new File(TaskPersister.getUserImagesDir(userId),
+                passedIconFile.getName());
+        if (!legitIconFile.getPath().equals(filePath)
+                || !filePath.contains(ActivityRecord.ACTIVITY_ICON_SUFFIX)) {
+            throw new IllegalArgumentException("Bad file path: " + filePath);
+        }
+        return mTaskPersister.getTaskDescriptionIcon(filePath);
     }
 
     @Override
@@ -11805,21 +11872,21 @@
 
     private void retrieveSettings() {
         final ContentResolver resolver = mContext.getContentResolver();
-        String debugApp = Settings.Global.getString(resolver, Settings.Global.DEBUG_APP);
-        boolean waitForDebugger = Settings.Global.getInt(
-            resolver, Settings.Global.WAIT_FOR_DEBUGGER, 0) != 0;
-        boolean alwaysFinishActivities = Settings.Global.getInt(
-            resolver, Settings.Global.ALWAYS_FINISH_ACTIVITIES, 0) != 0;
-        boolean forceRtl = Settings.Global.getInt(
-                resolver, Settings.Global.DEVELOPMENT_FORCE_RTL, 0) != 0;
-        int defaultForceResizable = Build.IS_DEBUGGABLE ? 1 : 0;
-        boolean forceResizable = Settings.Global.getInt(
-                resolver, Global.DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES,
-                defaultForceResizable) != 0;
-        // Transfer any global setting for forcing RTL layout, into a System Property
-        SystemProperties.set(Settings.Global.DEVELOPMENT_FORCE_RTL, forceRtl ? "1":"0");
+        final boolean freeformWindowManagement =
+                mContext.getPackageManager().hasSystemFeature(FEATURE_FREEFORM_WINDOW_MANAGEMENT);
 
-        Configuration configuration = new Configuration();
+        final String debugApp = Settings.Global.getString(resolver, DEBUG_APP);
+        final boolean waitForDebugger = Settings.Global.getInt(resolver, WAIT_FOR_DEBUGGER, 0) != 0;
+        final boolean alwaysFinishActivities =
+                Settings.Global.getInt(resolver, ALWAYS_FINISH_ACTIVITIES, 0) != 0;
+        final boolean forceRtl = Settings.Global.getInt(resolver, DEVELOPMENT_FORCE_RTL, 0) != 0;
+        final int defaultForceResizable = Build.IS_DEBUGGABLE ? 1 : 0;
+        final boolean forceResizable = Settings.Global.getInt(
+                resolver, DEVELOPMENT_FORCE_RESIZABLE_ACTIVITIES, defaultForceResizable) != 0;
+        // Transfer any global setting for forcing RTL layout, into a System Property
+        SystemProperties.set(DEVELOPMENT_FORCE_RTL, forceRtl ? "1":"0");
+
+        final Configuration configuration = new Configuration();
         Settings.System.getConfiguration(resolver, configuration);
         if (forceRtl) {
             // This will take care of setting the correct layout direction flags
@@ -11830,7 +11897,8 @@
             mDebugApp = mOrigDebugApp = debugApp;
             mWaitForDebugger = mOrigWaitForDebugger = waitForDebugger;
             mAlwaysFinishActivities = alwaysFinishActivities;
-            mForceResizableActivites = forceResizable;
+            mForceResizableActivities = forceResizable;
+            mSupportsFreeformWindowManagement = freeformWindowManagement || forceResizable;
             // This happens before any activities are started, so we can
             // change mConfiguration in-place.
             updateConfigurationLocked(configuration, null, true);
diff --git a/services/core/java/com/android/server/am/ActivityRecord.java b/services/core/java/com/android/server/am/ActivityRecord.java
index aa04bd7..ea8a12f 100755
--- a/services/core/java/com/android/server/am/ActivityRecord.java
+++ b/services/core/java/com/android/server/am/ActivityRecord.java
@@ -61,6 +61,7 @@
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
 
+import java.io.File;
 import java.io.IOException;
 import java.io.PrintWriter;
 import java.lang.ref.WeakReference;
@@ -1212,8 +1213,10 @@
         if (_taskDescription.getIconFilename() == null &&
                 (icon = _taskDescription.getIcon()) != null) {
             final String iconFilename = createImageFilename(createTime, task.taskId);
-            mStackSupervisor.mService.mTaskPersister.saveImage(icon, iconFilename);
-            _taskDescription.setIconFilename(iconFilename);
+            final File iconFile = new File(TaskPersister.getUserImagesDir(userId), iconFilename);
+            final String iconFilePath = iconFile.getAbsolutePath();
+            mStackSupervisor.mService.mTaskPersister.saveImage(icon, iconFilePath);
+            _taskDescription.setIconFilename(iconFilePath);
         }
         taskDescription = _taskDescription;
     }
diff --git a/services/core/java/com/android/server/am/ActivityStackSupervisor.java b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
index 0ec4b18..79aa85f 100644
--- a/services/core/java/com/android/server/am/ActivityStackSupervisor.java
+++ b/services/core/java/com/android/server/am/ActivityStackSupervisor.java
@@ -99,7 +99,6 @@
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemClock;
-import android.os.SystemProperties;
 import android.os.Trace;
 import android.os.TransactionTooLargeException;
 import android.os.UserHandle;
@@ -1926,9 +1925,9 @@
         boolean overrideBounds = false;
         Rect newBounds = null;
         if (options != null && (r.info.resizeable || (inTask != null && inTask.mResizeable))) {
-            if (options.hasBounds()) {
+            if (canUseActivityOptionsLaunchBounds(options)) {
                 overrideBounds = true;
-                newBounds = options.getBounds();
+                newBounds = options.getLaunchBounds();
             }
         }
 
@@ -2930,8 +2929,8 @@
         }
 
         if (task.mResizeable && options != null) {
-            if (options.hasBounds()) {
-                Rect bounds = options.getBounds();
+            if (canUseActivityOptionsLaunchBounds(options)) {
+                Rect bounds = options.getLaunchBounds();
                 task.updateOverrideConfiguration(bounds);
                 final int stackId = task.getLaunchStackId();
                 if (stackId != task.stack.mStackId) {
@@ -2955,6 +2954,12 @@
                 "findTaskToMoveToFront: moved to front of stack=" + task.stack);
     }
 
+    private boolean canUseActivityOptionsLaunchBounds(ActivityOptions options) {
+        // We use the launch bounds in the activity options is the device supports freeform
+        // window management.
+        return options.hasLaunchBounds() && mService.mSupportsFreeformWindowManagement;
+    }
+
     ActivityStack getStack(int stackId) {
         return getStack(stackId, !CREATE_IF_NEEDED, !ON_TOP);
     }
diff --git a/services/core/java/com/android/server/am/TaskPersister.java b/services/core/java/com/android/server/am/TaskPersister.java
index 150baf0..9a00075 100644
--- a/services/core/java/com/android/server/am/TaskPersister.java
+++ b/services/core/java/com/android/server/am/TaskPersister.java
@@ -16,10 +16,11 @@
 
 package com.android.server.am;
 
-import android.content.pm.IPackageManager;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.os.Debug;
+import android.os.Environment;
+import android.os.FileUtils;
 import android.os.SystemClock;
 import android.util.ArraySet;
 import android.util.AtomicFile;
@@ -27,7 +28,6 @@
 import android.util.Xml;
 import android.os.Process;
 
-import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.FastXmlSerializer;
 import com.android.internal.util.XmlUtils;
 
@@ -44,6 +44,7 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Comparator;
+import java.util.List;
 
 import libcore.io.IoUtils;
 
@@ -54,8 +55,10 @@
     /** When not flushing don't write out files faster than this */
     private static final long INTER_WRITE_DELAY_MS = 500;
 
-    /** When not flushing delay this long before writing the first file out. This gives the next
-     * task being launched a chance to load its resources without this occupying IO bandwidth. */
+    /**
+     * When not flushing delay this long before writing the first file out. This gives the next task
+     * being launched a chance to load its resources without this occupying IO bandwidth.
+     */
     private static final long PRE_TASK_DELAY_MS = 3000;
 
     /** The maximum number of entries to keep in the queue before draining it automatically. */
@@ -72,24 +75,23 @@
 
     private static final String TAG_TASK = "task";
 
-    static File sImagesDir;
-    static File sTasksDir;
-
     private final ActivityManagerService mService;
     private final ActivityStackSupervisor mStackSupervisor;
     private final RecentTasks mRecentTasks;
 
-    /** Value determines write delay mode as follows:
-     *    < 0 We are Flushing. No delays between writes until the image queue is drained and all
-     * tasks needing persisting are written to disk. There is no delay between writes.
-     *    == 0 We are Idle. Next writes will be delayed by #PRE_TASK_DELAY_MS.
-     *    > 0 We are Actively writing. Next write will be at this time. Subsequent writes will be
-     * delayed by #INTER_WRITE_DELAY_MS. */
+    /**
+     * Value determines write delay mode as follows: < 0 We are Flushing. No delays between writes
+     * until the image queue is drained and all tasks needing persisting are written to disk. There
+     * is no delay between writes. == 0 We are Idle. Next writes will be delayed by
+     * #PRE_TASK_DELAY_MS. > 0 We are Actively writing. Next write will be at this time. Subsequent
+     * writes will be delayed by #INTER_WRITE_DELAY_MS.
+     */
     private long mNextWriteTime = 0;
 
     private final LazyTaskWriterThread mLazyTaskWriterThread;
 
     private static class WriteQueueItem {}
+
     private static class TaskWriteQueueItem extends WriteQueueItem {
         final TaskRecord mTask;
 
@@ -97,12 +99,13 @@
             mTask = task;
         }
     }
+
     private static class ImageWriteQueueItem extends WriteQueueItem {
-        final String mFilename;
+        final String mFilePath;
         Bitmap mImage;
 
-        ImageWriteQueueItem(String filename, Bitmap image) {
-            mFilename = filename;
+        ImageWriteQueueItem(String filePath, Bitmap image) {
+            mFilePath = filePath;
             mImage = image;
         }
     }
@@ -111,19 +114,18 @@
 
     TaskPersister(File systemDir, ActivityStackSupervisor stackSupervisor,
             RecentTasks recentTasks) {
-        sTasksDir = new File(systemDir, TASKS_DIRNAME);
-        if (!sTasksDir.exists()) {
-            if (DEBUG) Slog.d(TAG, "Creating tasks directory " + sTasksDir);
-            if (!sTasksDir.mkdir()) {
-                Slog.e(TAG, "Failure creating tasks directory " + sTasksDir);
+
+        final File legacyImagesDir = new File(systemDir, IMAGES_DIRNAME);
+        if (legacyImagesDir.exists()) {
+            if (!FileUtils.deleteContents(legacyImagesDir) || !legacyImagesDir.delete()) {
+                Slog.i(TAG, "Failure deleting legacy images directory: " + legacyImagesDir);
             }
         }
 
-        sImagesDir = new File(systemDir, IMAGES_DIRNAME);
-        if (!sImagesDir.exists()) {
-            if (DEBUG) Slog.d(TAG, "Creating images directory " + sTasksDir);
-            if (!sImagesDir.mkdir()) {
-                Slog.e(TAG, "Failure creating images directory " + sImagesDir);
+        final File legacyTasksDir = new File(systemDir, TASKS_DIRNAME);
+        if (legacyTasksDir.exists()) {
+            if (!FileUtils.deleteContents(legacyTasksDir) || !legacyTasksDir.delete()) {
+                Slog.i(TAG, "Failure deleting legacy tasks directory: " + legacyTasksDir);
             }
         }
 
@@ -144,8 +146,8 @@
         for (int queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) {
             final WriteQueueItem item = mWriteQueue.get(queueNdx);
             if (item instanceof ImageWriteQueueItem &&
-                    ((ImageWriteQueueItem) item).mFilename.startsWith(taskString)) {
-                if (DEBUG) Slog.d(TAG, "Removing " + ((ImageWriteQueueItem) item).mFilename +
+                    ((ImageWriteQueueItem) item).mFilePath.startsWith(taskString)) {
+                if (DEBUG) Slog.d(TAG, "Removing " + ((ImageWriteQueueItem) item).mFilePath +
                         " from write queue");
                 mWriteQueue.remove(queueNdx);
             }
@@ -213,14 +215,14 @@
         }
     }
 
-    void saveImage(Bitmap image, String filename) {
+    void saveImage(Bitmap image, String filePath) {
         synchronized (this) {
             int queueNdx;
             for (queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) {
                 final WriteQueueItem item = mWriteQueue.get(queueNdx);
                 if (item instanceof ImageWriteQueueItem) {
                     ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item;
-                    if (imageWriteQueueItem.mFilename.equals(filename)) {
+                    if (imageWriteQueueItem.mFilePath.equals(filePath)) {
                         // replace the Bitmap with the new one.
                         imageWriteQueueItem.mImage = image;
                         break;
@@ -228,14 +230,14 @@
                 }
             }
             if (queueNdx < 0) {
-                mWriteQueue.add(new ImageWriteQueueItem(filename, image));
+                mWriteQueue.add(new ImageWriteQueueItem(filePath, image));
             }
             if (mWriteQueue.size() > MAX_WRITE_QUEUE_LENGTH) {
                 mNextWriteTime = FLUSH_QUEUE;
             } else if (mNextWriteTime == 0) {
                 mNextWriteTime = SystemClock.uptimeMillis() + PRE_TASK_DELAY_MS;
             }
-            if (DEBUG) Slog.d(TAG, "saveImage: filename=" + filename + " now=" +
+            if (DEBUG) Slog.d(TAG, "saveImage: filePath=" + filePath + " now=" +
                     SystemClock.uptimeMillis() + " mNextWriteTime=" +
                     mNextWriteTime + " Callers=" + Debug.getCallers(4));
             notifyAll();
@@ -244,22 +246,22 @@
         yieldIfQueueTooDeep();
     }
 
-    Bitmap getTaskDescriptionIcon(String filename) {
+    Bitmap getTaskDescriptionIcon(String filePath) {
         // See if it is in the write queue
-        final Bitmap icon = getImageFromWriteQueue(filename);
+        final Bitmap icon = getImageFromWriteQueue(filePath);
         if (icon != null) {
             return icon;
         }
-        return restoreImage(filename);
+        return restoreImage(filePath);
     }
 
-    Bitmap getImageFromWriteQueue(String filename) {
+    Bitmap getImageFromWriteQueue(String filePath) {
         synchronized (this) {
             for (int queueNdx = mWriteQueue.size() - 1; queueNdx >= 0; --queueNdx) {
                 final WriteQueueItem item = mWriteQueue.get(queueNdx);
                 if (item instanceof ImageWriteQueueItem) {
                     ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item;
-                    if (imageWriteQueueItem.mFilename.equals(filename)) {
+                    if (imageWriteQueueItem.mFilePath.equals(filePath)) {
                         return imageWriteQueueItem.mImage;
                     }
                 }
@@ -275,7 +277,7 @@
         xmlSerializer.setOutput(stringWriter);
 
         if (DEBUG) xmlSerializer.setFeature(
-                    "http://xmlpull.org/v1/doc/features.html#indent-output", true);
+                "http://xmlpull.org/v1/doc/features.html#indent-output", true);
 
         // save task
         xmlSerializer.startDocument(null, true);
@@ -321,19 +323,22 @@
         return null;
     }
 
-    ArrayList<TaskRecord> restoreTasksLocked(final int [] validUserIds) {
-        final ArrayList<TaskRecord> tasks = new ArrayList<TaskRecord>();
+    private List<TaskRecord> restoreTasksForUserLocked(final int userId) {
+        final List<TaskRecord> tasks = new ArrayList<TaskRecord>();
         ArraySet<Integer> recoveredTaskIds = new ArraySet<Integer>();
 
-        File[] recentFiles = sTasksDir.listFiles();
+        File userTasksDir = getUserTasksDir(userId);
+
+        File[] recentFiles = userTasksDir.listFiles();
         if (recentFiles == null) {
-            Slog.e(TAG, "Unable to list files from " + sTasksDir);
+            Slog.e(TAG, "restoreTasksForUser: Unable to list files from " + userTasksDir);
             return tasks;
         }
 
         for (int taskNdx = 0; taskNdx < recentFiles.length; ++taskNdx) {
             File taskFile = recentFiles[taskNdx];
-            if (DEBUG) Slog.d(TAG, "restoreTasksLocked: taskFile=" + taskFile.getName());
+            if (DEBUG) Slog.d(TAG, "restoreTasksForUser: userId=" + userId
+                    + ", taskFile=" + taskFile.getName());
             BufferedReader reader = null;
             boolean deleteFile = false;
             try {
@@ -348,30 +353,29 @@
                     if (event == XmlPullParser.START_TAG) {
                         if (DEBUG) Slog.d(TAG, "restoreTasksLocked: START_TAG name=" + name);
                         if (TAG_TASK.equals(name)) {
-                            final TaskRecord task =
-                                    TaskRecord.restoreFromXml(in, mStackSupervisor);
-                            if (DEBUG) Slog.d(TAG, "restoreTasksLocked: restored task=" +
-                                    task);
+                            final TaskRecord task = TaskRecord.restoreFromXml(in, mStackSupervisor);
+                            if (DEBUG) Slog.d(TAG, "restoreTasksLocked: restored task="
+                                    + task);
                             if (task != null) {
                                 // XXX Don't add to write queue... there is no reason to write
                                 // out the stuff we just read, if we don't write it we will
                                 // read the same thing again.
-                                //mWriteQueue.add(new TaskWriteQueueItem(task));
+                                // mWriteQueue.add(new TaskWriteQueueItem(task));
                                 final int taskId = task.taskId;
                                 mStackSupervisor.setNextTaskId(taskId);
                                 // Check if it's a valid user id. Don't add tasks for removed users.
-                                if (ArrayUtils.contains(validUserIds, task.userId)) {
+                                if (userId == task.userId) {
                                     task.isPersistable = true;
                                     tasks.add(task);
                                     recoveredTaskIds.add(taskId);
                                 }
                             } else {
-                                Slog.e(TAG, "Unable to restore taskFile=" + taskFile + ": " +
-                                        fileToString(taskFile));
+                                Slog.e(TAG, "restoreTasksForUser: Unable to restore taskFile="
+                                        + taskFile + ": " + fileToString(taskFile));
                             }
                         } else {
-                            Slog.wtf(TAG, "restoreTasksLocked Unknown xml event=" + event +
-                                    " name=" + name);
+                            Slog.wtf(TAG, "restoreTasksForUser: Unknown xml event=" + event
+                                    + " name=" + name);
                         }
                     }
                     XmlUtils.skipCurrentTag(in);
@@ -390,10 +394,19 @@
         }
 
         if (!DEBUG) {
-            removeObsoleteFiles(recoveredTaskIds);
+            removeObsoleteFiles(recoveredTaskIds, userTasksDir.listFiles());
+        }
+        return tasks;
+    }
+
+    ArrayList<TaskRecord> restoreTasksLocked(final int[] validUserIds) {
+        final ArrayList<TaskRecord> tasks = new ArrayList<TaskRecord>();
+
+        for (int userId : validUserIds) {
+            tasks.addAll(restoreTasksForUserLocked(userId));
         }
 
-        // Fixup task affiliation from taskIds
+        // Fix up task affiliation from taskIds
         for (int taskNdx = tasks.size() - 1; taskNdx >= 0; --taskNdx) {
             final TaskRecord task = tasks.get(taskNdx);
             task.setPrevAffiliate(taskIdToTask(task.mPrevAffiliateTaskId, tasks));
@@ -420,7 +433,7 @@
     }
 
     private static void removeObsoleteFiles(ArraySet<Integer> persistentTaskIds, File[] files) {
-        if (DEBUG) Slog.d(TAG, "removeObsoleteFile: persistentTaskIds=" + persistentTaskIds +
+        if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: persistentTaskIds=" + persistentTaskIds +
                 " files=" + files);
         if (files == null) {
             Slog.e(TAG, "File error accessing recents directory (too many files open?).");
@@ -434,14 +447,14 @@
                 final int taskId;
                 try {
                     taskId = Integer.valueOf(filename.substring(0, taskIdEnd));
-                    if (DEBUG) Slog.d(TAG, "removeObsoleteFile: Found taskId=" + taskId);
+                    if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: Found taskId=" + taskId);
                 } catch (Exception e) {
-                    Slog.wtf(TAG, "removeObsoleteFile: Can't parse file=" + file.getName());
+                    Slog.wtf(TAG, "removeObsoleteFiles: Can't parse file=" + file.getName());
                     file.delete();
                     continue;
                 }
                 if (!persistentTaskIds.contains(taskId)) {
-                    if (DEBUG) Slog.d(TAG, "removeObsoleteFile: deleting file=" + file.getName());
+                    if (DEBUG) Slog.d(TAG, "removeObsoleteFiles: deleting file=" + file.getName());
                     file.delete();
                 }
             }
@@ -449,13 +462,39 @@
     }
 
     private void removeObsoleteFiles(ArraySet<Integer> persistentTaskIds) {
-        removeObsoleteFiles(persistentTaskIds, sTasksDir.listFiles());
-        removeObsoleteFiles(persistentTaskIds, sImagesDir.listFiles());
+        for (int userId : mService.getRunningUserIds()) {
+            removeObsoleteFiles(persistentTaskIds, getUserImagesDir(userId).listFiles());
+            removeObsoleteFiles(persistentTaskIds, getUserTasksDir(userId).listFiles());
+        }
     }
 
     static Bitmap restoreImage(String filename) {
         if (DEBUG) Slog.d(TAG, "restoreImage: restoring " + filename);
-        return BitmapFactory.decodeFile(sImagesDir + File.separator + filename);
+        return BitmapFactory.decodeFile(filename);
+    }
+
+    static File getUserTasksDir(int userId) {
+        File userTasksDir = new File(Environment.getUserSystemDirectory(userId), TASKS_DIRNAME);
+
+        if (!userTasksDir.exists()) {
+            if (!userTasksDir.mkdir()) {
+                Slog.e(TAG, "Failure creating tasks directory for user " + userId + ": "
+                        + userTasksDir);
+            }
+        }
+        return userTasksDir;
+    }
+
+    static File getUserImagesDir(int userId) {
+        File userImagesDir = new File(Environment.getUserSystemDirectory(userId), IMAGES_DIRNAME);
+
+        if (!userImagesDir.exists()) {
+            if (!userImagesDir.mkdir()) {
+                Slog.e(TAG, "Failure creating images directory for user " + userId + ": "
+                        + userImagesDir);
+            }
+        }
+        return userImagesDir;
     }
 
     private class LazyTaskWriterThread extends Thread {
@@ -508,7 +547,6 @@
                                 INTER_WRITE_DELAY_MS + " msec. (" + mNextWriteTime + ")");
                     }
 
-
                     while (mWriteQueue.isEmpty()) {
                         if (mNextWriteTime != 0) {
                             mNextWriteTime = 0; // idle.
@@ -542,15 +580,15 @@
 
                 if (item instanceof ImageWriteQueueItem) {
                     ImageWriteQueueItem imageWriteQueueItem = (ImageWriteQueueItem) item;
-                    final String filename = imageWriteQueueItem.mFilename;
+                    final String filePath = imageWriteQueueItem.mFilePath;
                     final Bitmap bitmap = imageWriteQueueItem.mImage;
-                    if (DEBUG) Slog.d(TAG, "writing bitmap: filename=" + filename);
+                    if (DEBUG) Slog.d(TAG, "writing bitmap: filename=" + filePath);
                     FileOutputStream imageFile = null;
                     try {
-                        imageFile = new FileOutputStream(new File(sImagesDir, filename));
+                        imageFile = new FileOutputStream(new File(filePath));
                         bitmap.compress(Bitmap.CompressFormat.PNG, 100, imageFile);
                     } catch (Exception e) {
-                        Slog.e(TAG, "saveImage: unable to save " + filename, e);
+                        Slog.e(TAG, "saveImage: unable to save " + filePath, e);
                     } finally {
                         IoUtils.closeQuietly(imageFile);
                     }
@@ -575,18 +613,21 @@
                         FileOutputStream file = null;
                         AtomicFile atomicFile = null;
                         try {
-                            atomicFile = new AtomicFile(new File(sTasksDir, String.valueOf(
-                                    task.taskId) + RECENTS_FILENAME + TASK_EXTENSION));
+                            atomicFile = new AtomicFile(new File(
+                                    getUserTasksDir(task.userId),
+                                    String.valueOf(task.taskId) + RECENTS_FILENAME
+                                    + TASK_EXTENSION));
                             file = atomicFile.startWrite();
                             file.write(stringWriter.toString().getBytes());
                             file.write('\n');
                             atomicFile.finishWrite(file);
+
                         } catch (IOException e) {
                             if (file != null) {
                                 atomicFile.failWrite(file);
                             }
-                            Slog.e(TAG, "Unable to open " + atomicFile + " for persisting. " +
-                                    e);
+                            Slog.e(TAG,
+                                    "Unable to open " + atomicFile + " for persisting. " + e);
                         }
                     }
                 }
diff --git a/services/core/java/com/android/server/am/TaskRecord.java b/services/core/java/com/android/server/am/TaskRecord.java
index b214080..3fc6846 100644
--- a/services/core/java/com/android/server/am/TaskRecord.java
+++ b/services/core/java/com/android/server/am/TaskRecord.java
@@ -27,15 +27,23 @@
 import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_IF_WHITELISTED;
 import static android.content.pm.ActivityInfo.LOCK_TASK_LAUNCH_MODE_NEVER;
 import static android.content.pm.ApplicationInfo.PRIVATE_FLAG_PRIVILEGED;
-import static com.android.server.am.ActivityManagerDebugConfig.*;
-import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_ADD_REMOVE;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_LOCKTASK;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_RECENTS;
+import static com.android.server.am.ActivityManagerDebugConfig.DEBUG_TASKS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_ADD_REMOVE;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_LOCKTASK;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_RECENTS;
+import static com.android.server.am.ActivityManagerDebugConfig.POSTFIX_TASKS;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_AM;
+import static com.android.server.am.ActivityManagerDebugConfig.TAG_WITH_CLASS_NAME;
 import static com.android.server.am.ActivityRecord.APPLICATION_ACTIVITY_TYPE;
+import static com.android.server.am.ActivityRecord.HOME_ACTIVITY_TYPE;
 import static com.android.server.am.ActivityRecord.RECENTS_ACTIVITY_TYPE;
 
 import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityManager.StackId;
-import android.app.ActivityManager.TaskThumbnail;
 import android.app.ActivityManager.TaskDescription;
 import android.app.ActivityManager.TaskThumbnail;
 import android.app.ActivityManager.TaskThumbnailInfo;
@@ -58,8 +66,10 @@
 import android.service.voice.IVoiceInteractionSession;
 import android.util.DisplayMetrics;
 import android.util.Slog;
+
 import com.android.internal.app.IVoiceInteractor;
 import com.android.internal.util.XmlUtils;
+
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
 import org.xmlpull.v1.XmlSerializer;
@@ -237,7 +247,8 @@
         mService = service;
         mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX +
                 TaskPersister.IMAGE_EXTENSION;
-        mLastThumbnailFile = new File(TaskPersister.sImagesDir, mFilename);
+        userId = UserHandle.getUserId(info.applicationInfo.uid);
+        mLastThumbnailFile = new File(TaskPersister.getUserImagesDir(userId), mFilename);
         mLastThumbnailInfo = new TaskThumbnailInfo();
         taskId = _taskId;
         mAffiliatedTaskId = _taskId;
@@ -256,7 +267,8 @@
         mService = service;
         mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX +
                 TaskPersister.IMAGE_EXTENSION;
-        mLastThumbnailFile = new File(TaskPersister.sImagesDir, mFilename);
+        userId = UserHandle.getUserId(info.applicationInfo.uid);
+        mLastThumbnailFile = new File(TaskPersister.getUserImagesDir(userId), mFilename);
         mLastThumbnailInfo = thumbnailInfo;
         taskId = _taskId;
         mAffiliatedTaskId = _taskId;
@@ -276,7 +288,6 @@
 
         taskType = APPLICATION_ACTIVITY_TYPE;
         mTaskToReturnTo = HOME_ACTIVITY_TYPE;
-        userId = UserHandle.getUserId(info.applicationInfo.uid);
         lastTaskDescription = _taskDescription;
         mMinimalSize = info != null && info.layout != null ? info.layout.minimalSize : -1;
     }
@@ -294,7 +305,7 @@
         mService = service;
         mFilename = String.valueOf(_taskId) + TASK_THUMBNAIL_SUFFIX +
                 TaskPersister.IMAGE_EXTENSION;
-        mLastThumbnailFile = new File(TaskPersister.sImagesDir, mFilename);
+        mLastThumbnailFile = new File(TaskPersister.getUserImagesDir(_userId), mFilename);
         mLastThumbnailInfo = lastThumbnailInfo;
         taskId = _taskId;
         intent = _intent;
@@ -326,7 +337,7 @@
         mNextAffiliateTaskId = nextTaskId;
         mCallingUid = callingUid;
         mCallingPackage = callingPackage;
-        mResizeable = resizeable || mService.mForceResizableActivites;
+        mResizeable = resizeable || mService.mForceResizableActivities;
         mPrivileged = privileged;
         ActivityInfo info = (mActivities.size() > 0) ? mActivities.get(0).info : null;
         mMinimalSize = info != null && info.layout != null ? info.layout.minimalSize : -1;
@@ -428,7 +439,7 @@
         } else {
             autoRemoveRecents = false;
         }
-        mResizeable = info.resizeable || mService.mForceResizableActivites;
+        mResizeable = info.resizeable || mService.mForceResizableActivities;
         mLockTaskMode = info.lockTaskLaunchMode;
         mPrivileged = (info.applicationInfo.privateFlags & PRIVATE_FLAG_PRIVILEGED) != 0;
         setLockTaskAuth();
@@ -537,7 +548,7 @@
                     mLastThumbnailFile.delete();
                 }
             } else {
-                mService.mTaskPersister.saveImage(thumbnail, mFilename);
+                mService.mTaskPersister.saveImage(thumbnail, mLastThumbnailFile.getAbsolutePath());
             }
             return true;
         }
@@ -549,7 +560,8 @@
         thumbs.thumbnailInfo = mLastThumbnailInfo;
         thumbs.thumbnailFileDescriptor = null;
         if (mLastThumbnail == null) {
-            thumbs.mainThumbnail = mService.mTaskPersister.getImageFromWriteQueue(mFilename);
+            thumbs.mainThumbnail = mService.mTaskPersister.getImageFromWriteQueue(
+                    mLastThumbnailFile.getAbsolutePath());
         }
         // Only load the thumbnail file if we don't have a thumbnail
         if (thumbs.mainThumbnail == null && mLastThumbnailFile.exists()) {
@@ -682,7 +694,7 @@
         // Only set this based on the first activity
         if (mActivities.isEmpty()) {
             taskType = r.mActivityType;
-            if (taskType == HOME_ACTIVITY_TYPE && mService.mForceResizableActivites) {
+            if (taskType == HOME_ACTIVITY_TYPE && mService.mForceResizableActivities) {
                 mResizeable = r.info.resizeable;
             }
             isPersistable = r.isPersistable();
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index fd1e9dd..4424838b 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -1224,19 +1224,6 @@
         }
 
         @Override
-        public void setPackagePeekable(String pkg, int uid, boolean peekable) {
-            checkCallerIsSystem();
-
-            mRankingHelper.setPackagePeekable(pkg, uid, peekable);
-        }
-
-        @Override
-        public boolean getPackagePeekable(String pkg, int uid) {
-            checkCallerIsSystem();
-            return mRankingHelper.getPackagePeekable(pkg, uid);
-        }
-
-        @Override
         public void setPackageVisibilityOverride(String pkg, int uid, int visibility) {
             checkCallerIsSystem();
             mRankingHelper.setPackageVisibilityOverride(pkg, uid, visibility);
@@ -2157,14 +2144,6 @@
                             notification.priority = Notification.PRIORITY_HIGH;
                         }
                     }
-                    // force no heads up per package config
-                    if (!mRankingHelper.getPackagePeekable(pkg, callingUid)) {
-                        if (notification.extras == null) {
-                            notification.extras = new Bundle();
-                        }
-                        notification.extras.putInt(Notification.EXTRA_AS_HEADS_UP,
-                                Notification.HEADS_UP_NEVER);
-                    }
 
                     // 1. initial score: buckets of 10, around the app [-20..20]
                     final int score = notification.priority * NOTIFICATION_PRIORITY_MULTIPLIER;
diff --git a/services/core/java/com/android/server/notification/RankingConfig.java b/services/core/java/com/android/server/notification/RankingConfig.java
index 803db10..aea137b 100644
--- a/services/core/java/com/android/server/notification/RankingConfig.java
+++ b/services/core/java/com/android/server/notification/RankingConfig.java
@@ -20,10 +20,6 @@
 
     void setPackagePriority(String packageName, int uid, int priority);
 
-    boolean getPackagePeekable(String packageName, int uid);
-
-    void setPackagePeekable(String packageName, int uid, boolean peekable);
-
     int getPackageVisibilityOverride(String packageName, int uid);
 
     void setPackageVisibilityOverride(String packageName, int uid, int visibility);
diff --git a/services/core/java/com/android/server/notification/RankingHelper.java b/services/core/java/com/android/server/notification/RankingHelper.java
index 66381f5..f8b661f 100644
--- a/services/core/java/com/android/server/notification/RankingHelper.java
+++ b/services/core/java/com/android/server/notification/RankingHelper.java
@@ -49,11 +49,9 @@
     private static final String ATT_NAME = "name";
     private static final String ATT_UID = "uid";
     private static final String ATT_PRIORITY = "priority";
-    private static final String ATT_PEEKABLE = "peekable";
     private static final String ATT_VISIBILITY = "visibility";
 
     private static final int DEFAULT_PRIORITY = Notification.PRIORITY_DEFAULT;
-    private static final boolean DEFAULT_PEEKABLE = true;
     private static final int DEFAULT_VISIBILITY =
             NotificationListenerService.Ranking.VISIBILITY_NO_OVERRIDE;
 
@@ -141,7 +139,6 @@
                 if (TAG_PACKAGE.equals(tag)) {
                     int uid = safeInt(parser, ATT_UID, Record.UNKNOWN_UID);
                     int priority = safeInt(parser, ATT_PRIORITY, DEFAULT_PRIORITY);
-                    boolean peekable = safeBool(parser, ATT_PEEKABLE, DEFAULT_PEEKABLE);
                     int vis = safeInt(parser, ATT_VISIBILITY, DEFAULT_VISIBILITY);
                     String name = parser.getAttributeValue(null, ATT_NAME);
 
@@ -167,9 +164,6 @@
                         if (priority != DEFAULT_PRIORITY) {
                             r.priority = priority;
                         }
-                        if (peekable != DEFAULT_PEEKABLE) {
-                            r.peekable = peekable;
-                        }
                         if (vis != DEFAULT_VISIBILITY) {
                             r.visibility = vis;
                         }
@@ -200,8 +194,7 @@
         final int N = mRecords.size();
         for (int i = N - 1; i >= 0; i--) {
             final Record r = mRecords.valueAt(i);
-            if (r.priority == DEFAULT_PRIORITY && r.peekable == DEFAULT_PEEKABLE
-                    && r.visibility == DEFAULT_VISIBILITY) {
+            if (r.priority == DEFAULT_PRIORITY && r.visibility == DEFAULT_VISIBILITY) {
                 mRecords.remove(i);
             }
         }
@@ -223,9 +216,6 @@
             if (r.priority != DEFAULT_PRIORITY) {
                 out.attribute(null, ATT_PRIORITY, Integer.toString(r.priority));
             }
-            if (r.peekable != DEFAULT_PEEKABLE) {
-                out.attribute(null, ATT_PEEKABLE, Boolean.toString(r.peekable));
-            }
             if (r.visibility != DEFAULT_VISIBILITY) {
                 out.attribute(null, ATT_VISIBILITY, Integer.toString(r.visibility));
             }
@@ -348,22 +338,6 @@
     }
 
     @Override
-    public boolean getPackagePeekable(String packageName, int uid) {
-        final Record r = mRecords.get(recordKey(packageName, uid));
-        return r != null ? r.peekable : DEFAULT_PEEKABLE;
-    }
-
-    @Override
-    public void setPackagePeekable(String packageName, int uid, boolean peekable) {
-        if (peekable == getPackagePeekable(packageName, uid)) {
-            return;
-        }
-        getOrCreateRecord(packageName, uid).peekable = peekable;
-        removeDefaultRecords();
-        updateConfig();
-    }
-
-    @Override
     public int getPackageVisibilityOverride(String packageName, int uid) {
         final Record r = mRecords.get(recordKey(packageName, uid));
         return r != null ? r.visibility : DEFAULT_VISIBILITY;
@@ -415,10 +389,6 @@
                     pw.print(" priority=");
                     pw.print(Notification.priorityToString(r.priority));
                 }
-                if (r.peekable != DEFAULT_PEEKABLE) {
-                    pw.print(" peekable=");
-                    pw.print(r.peekable);
-                }
                 if (r.visibility != DEFAULT_VISIBILITY) {
                     pw.print(" visibility=");
                     pw.print(Notification.visibilityToString(r.visibility));
@@ -460,7 +430,6 @@
         String pkg;
         int uid = UNKNOWN_UID;
         int priority = DEFAULT_PRIORITY;
-        boolean peekable = DEFAULT_PEEKABLE;
         int visibility = DEFAULT_VISIBILITY;
     }
 
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index ab0b182..53ce9e2 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -322,7 +322,7 @@
             final int userSize = mUsers.size();
             for (int i = 0; i < userSize; i++) {
                 UserInfo ui = mUsers.valueAt(i);
-                if (ui.isPrimary()) {
+                if (ui.isPrimary() && !mRemovingUserIds.get(ui.id)) {
                     return ui;
                 }
             }
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 121ef21..ae6874f 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -5318,11 +5318,9 @@
     }
 
     private boolean shouldDispatchInputWhenNonInteractive() {
-        if (mDisplay == null || mDisplay.getState() == Display.STATE_OFF) {
-            return false;
-        }
-        // Send events to keyguard while the screen is on and it's showing.
-        if (isKeyguardShowingAndNotOccluded()) {
+        // Send events to keyguard while the screen is on.
+        if (isKeyguardShowingAndNotOccluded() && mDisplay != null
+                && mDisplay.getState() != Display.STATE_OFF) {
             return true;
         }
 
diff --git a/services/core/java/com/android/server/wm/Session.java b/services/core/java/com/android/server/wm/Session.java
index 1caeca0..b85a6923 100644
--- a/services/core/java/com/android/server/wm/Session.java
+++ b/services/core/java/com/android/server/wm/Session.java
@@ -401,6 +401,32 @@
         }
     }
 
+    public void cancelDrag(IBinder dragToken) {
+        if (WindowManagerService.DEBUG_DRAG) {
+            Slog.d(WindowManagerService.TAG, "cancel drag");
+        }
+
+        synchronized (mService.mWindowMap) {
+            long ident = Binder.clearCallingIdentity();
+            try {
+                if (mService.mDragState == null) {
+                    Slog.w(WindowManagerService.TAG, "cancelDrag() without prepareDrag()");
+                    throw new IllegalStateException("cancelDrag() without prepareDrag()");
+                }
+
+                if (mService.mDragState.mToken != dragToken) {
+                    Slog.w(WindowManagerService.TAG, "cancelDrag() does not match prepareDrag()");
+                    throw new IllegalStateException("cancelDrag() does not match prepareDrag()");
+                }
+
+                mService.mDragState.mDragResult = false;
+                mService.mDragState.endDragLw();
+            } finally {
+                Binder.restoreCallingIdentity(ident);
+            }
+        }
+    }
+
     public void dragRecipientEntered(IWindow window) {
         if (WindowManagerService.DEBUG_DRAG) {
             Slog.d(WindowManagerService.TAG, "Drag into new candidate view @ " + window.asBinder());
diff --git a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
index f396c2d..8fee91f 100644
--- a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
+++ b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerService.java
@@ -362,7 +362,6 @@
                             }
                         } catch (PackageManager.NameNotFoundException e) {
                             Slog.w(TAG, "Failure looking up interaction service " + comp);
-                        } catch (RemoteException e) {
                         }
                     }
                 }
diff --git a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerServiceImpl.java b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerServiceImpl.java
index 30296e1..109d214 100644
--- a/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerServiceImpl.java
+++ b/services/voiceinteraction/java/com/android/server/voiceinteraction/VoiceInteractionManagerServiceImpl.java
@@ -116,7 +116,7 @@
         VoiceInteractionServiceInfo info;
         try {
             info = new VoiceInteractionServiceInfo(context.getPackageManager(), service, mUser);
-        } catch (RemoteException|PackageManager.NameNotFoundException e) {
+        } catch (PackageManager.NameNotFoundException e) {
             Slog.w(TAG, "Voice interaction service not found: " + service, e);
             mInfo = null;
             mSessionComponentName = null;
diff --git a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
index 1ec0547..4436a40 100644
--- a/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
+++ b/tools/layoutlib/bridge/src/com/android/layoutlib/bridge/android/BridgeWindowSession.java
@@ -167,6 +167,11 @@
     }
 
     @Override
+    public void cancelDrag(IBinder dragToken) {
+        // pass for now
+    }
+
+    @Override
     public void dragRecipientEntered(IWindow window) throws RemoteException {
         // pass for now
     }
diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateClassAdapter.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateClassAdapter.java
index ae4a57d..7ef7566 100644
--- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateClassAdapter.java
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateClassAdapter.java
@@ -17,6 +17,7 @@
 package com.android.tools.layoutlib.create;
 
 import org.objectweb.asm.ClassVisitor;
+import org.objectweb.asm.FieldVisitor;
 import org.objectweb.asm.MethodVisitor;
 import org.objectweb.asm.Opcodes;
 
@@ -40,6 +41,7 @@
     private final String mClassName;
     private final Set<String> mDelegateMethods;
     private final Log mLog;
+    private boolean mIsStaticInnerClass;
 
     /**
      * Creates a new {@link DelegateClassAdapter} that can transform some methods
@@ -62,16 +64,30 @@
         mLog = log;
         mClassName = className;
         mDelegateMethods = delegateMethods;
+        // If this is an inner class, by default, we assume it's static. If it's not we will detect
+        // by looking at the fields (see visitField)
+        mIsStaticInnerClass = className.contains("$");
     }
 
     //----------------------------------
     // Methods from the ClassAdapter
 
     @Override
+    public FieldVisitor visitField(int access, String name, String desc, String signature,
+            Object value) {
+        if (mIsStaticInnerClass && "this$0".equals(name)) {
+            // Having a "this$0" field, proves that this class is not a static inner class.
+            mIsStaticInnerClass = false;
+        }
+
+        return super.visitField(access, name, desc, signature, value);
+    }
+
+    @Override
     public MethodVisitor visitMethod(int access, String name, String desc,
             String signature, String[] exceptions) {
 
-        boolean isStatic = (access & Opcodes.ACC_STATIC) != 0;
+        boolean isStaticMethod = (access & Opcodes.ACC_STATIC) != 0;
         boolean isNative = (access & Opcodes.ACC_NATIVE) != 0;
 
         boolean useDelegate = (isNative && mDelegateMethods.contains(ALL_NATIVES)) ||
@@ -96,7 +112,8 @@
             MethodVisitor mwDelegate = super.visitMethod(access, name, desc, signature, exceptions);
 
             DelegateMethodAdapter a = new DelegateMethodAdapter(
-                    mLog, null, mwDelegate, mClassName, name, desc, isStatic);
+                    mLog, null, mwDelegate, mClassName, name, desc, isStaticMethod,
+                    mIsStaticInnerClass);
 
             // A native has no code to visit, so we need to generate it directly.
             a.generateDelegateCode();
@@ -120,6 +137,7 @@
                                                      desc, signature, exceptions);
 
         return new DelegateMethodAdapter(
-                mLog, mwOriginal, mwDelegate, mClassName, name, desc, isStatic);
+                mLog, mwOriginal, mwDelegate, mClassName, name, desc, isStaticMethod,
+                mIsStaticInnerClass);
     }
 }
diff --git a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateMethodAdapter.java b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateMethodAdapter.java
index 12690db..cca9e57 100644
--- a/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateMethodAdapter.java
+++ b/tools/layoutlib/create/src/com/android/tools/layoutlib/create/DelegateMethodAdapter.java
@@ -85,6 +85,8 @@
     private String mDesc;
     /** True if the original method is static. */
     private final boolean mIsStatic;
+    /** True if the method is contained in a static inner class */
+    private final boolean mIsStaticInnerClass;
     /** The internal class name (e.g. <code>com/android/SomeClass$InnerClass</code>.) */
     private final String mClassName;
     /** The method name. */
@@ -120,7 +122,8 @@
             String className,
             String methodName,
             String desc,
-            boolean isStatic) {
+            boolean isStatic,
+            boolean isStaticClass) {
         super(Opcodes.ASM4);
         mLog = log;
         mOrgWriter = mvOriginal;
@@ -129,6 +132,7 @@
         mMethodName = methodName;
         mDesc = desc;
         mIsStatic = isStatic;
+        mIsStaticInnerClass = isStaticClass;
     }
 
     /**
@@ -206,7 +210,7 @@
         // by the 'this' of any outer class, if any.
         if (!mIsStatic) {
 
-            if (outerType != null) {
+            if (outerType != null && !mIsStaticInnerClass) {
                 // The first-level inner class has a package-protected member called 'this$0'
                 // that points to the outer class.
 
diff --git a/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/DelegateClassAdapterTest.java b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/DelegateClassAdapterTest.java
index 648cea43..e37a09b 100644
--- a/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/DelegateClassAdapterTest.java
+++ b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/DelegateClassAdapterTest.java
@@ -27,6 +27,7 @@
 import com.android.tools.layoutlib.create.dataclass.ClassWithNative;
 import com.android.tools.layoutlib.create.dataclass.OuterClass;
 import com.android.tools.layoutlib.create.dataclass.OuterClass.InnerClass;
+import com.android.tools.layoutlib.create.dataclass.OuterClass.StaticInnerClass;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -56,6 +57,8 @@
     private static final String OUTER_CLASS_NAME = OuterClass.class.getCanonicalName();
     private static final String INNER_CLASS_NAME = OuterClass.class.getCanonicalName() + "$" +
                                                    InnerClass.class.getSimpleName();
+    private static final String STATIC_INNER_CLASS_NAME =
+            OuterClass.class.getCanonicalName() + "$" + StaticInnerClass.class.getSimpleName();
 
     @Before
     public void setUp() throws Exception {
@@ -294,6 +297,61 @@
         }
     }
 
+    @Test
+    public void testDelegateStaticInner() throws Throwable {
+        // We'll delegate the "get" method of both the inner and outer class.
+        HashSet<String> delegateMethods = new HashSet<String>();
+        delegateMethods.add("get");
+
+        // Generate the delegate for the outer class.
+        ClassWriter cwOuter = new ClassWriter(0 /*flags*/);
+        String outerClassName = OUTER_CLASS_NAME.replace('.', '/');
+        DelegateClassAdapter cvOuter = new DelegateClassAdapter(
+                mLog, cwOuter, outerClassName, delegateMethods);
+        ClassReader cr = new ClassReader(OUTER_CLASS_NAME);
+        cr.accept(cvOuter, 0 /* flags */);
+
+        // Generate the delegate for the static inner class.
+        ClassWriter cwInner = new ClassWriter(0 /*flags*/);
+        String innerClassName = STATIC_INNER_CLASS_NAME.replace('.', '/');
+        DelegateClassAdapter cvInner = new DelegateClassAdapter(
+                mLog, cwInner, innerClassName, delegateMethods);
+        cr = new ClassReader(STATIC_INNER_CLASS_NAME);
+        cr.accept(cvInner, 0 /* flags */);
+
+        // Load the generated classes in a different class loader and try them
+        ClassLoader2 cl2 = null;
+        try {
+            cl2 = new ClassLoader2() {
+                @Override
+                public void testModifiedInstance() throws Exception {
+
+                    // Check the outer class
+                    Class<?> outerClazz2 = loadClass(OUTER_CLASS_NAME);
+                    Object o2 = outerClazz2.newInstance();
+                    assertNotNull(o2);
+
+                    // Check the inner class. Since it's not a static inner class, we need
+                    // to use the hidden constructor that takes the outer class as first parameter.
+                    Class<?> innerClazz2 = loadClass(STATIC_INNER_CLASS_NAME);
+                    Constructor<?> innerCons = innerClazz2.getConstructor();
+                    Object i2 = innerCons.newInstance();
+                    assertNotNull(i2);
+
+                    // The original StaticInner.get returns 100+10+20,
+                    // but the delegate makes it return 6+10+20
+                    assertEquals(6+10+20, callGet(i2, 10, 20));
+                    assertEquals(100+10+20, callGet_Original(i2, 10, 20));
+                }
+            };
+            cl2.add(OUTER_CLASS_NAME, cwOuter.toByteArray());
+            cl2.add(STATIC_INNER_CLASS_NAME, cwInner.toByteArray());
+            cl2.testModifiedInstance();
+        } catch (Throwable t) {
+            throw dumpGeneratedClass(t, cl2);
+        }
+    }
+
     //-------
 
     /**
diff --git a/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass.java b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass.java
index f083e76..6dfb816 100644
--- a/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass.java
+++ b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass.java
@@ -45,6 +45,16 @@
         }
     }
 
+    public static class StaticInnerClass {
+        public StaticInnerClass() {
+        }
+
+        // StaticInnerClass.get returns 100 + a + b
+        public int get(int a, long b) {
+            return 100 + a + (int) b;
+        }
+    }
+
     @SuppressWarnings("unused")
     private String privateMethod() {
         return "outerPrivateMethod";
diff --git a/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass_StaticInnerClass_Delegate.java b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass_StaticInnerClass_Delegate.java
new file mode 100644
index 0000000..a29439e
--- /dev/null
+++ b/tools/layoutlib/create/tests/com/android/tools/layoutlib/create/dataclass/OuterClass_StaticInnerClass_Delegate.java
@@ -0,0 +1,30 @@
+/*
+ * 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.tools.layoutlib.create.dataclass;
+
+import com.android.tools.layoutlib.create.DelegateClassAdapterTest;
+import com.android.tools.layoutlib.create.dataclass.OuterClass.StaticInnerClass;
+
+/**
+ * Used by {@link DelegateClassAdapterTest}.
+ */
+public class OuterClass_StaticInnerClass_Delegate {
+    // The delegate override of Inner.get return 6 + a + b
+    public static int get(StaticInnerClass inner, int a, long b) {
+        return 6 + a + (int) b;
+    }
+}