Merge changes Id963434f,I103ccc69,I770cd430

* changes:
  Remove events bus code from task loading code.
  Pull out TaskStackListener into its own class.
  Remove unused recents fast-toggle/paging code.
diff --git a/core/java/android/app/ActivityManager.java b/core/java/android/app/ActivityManager.java
index dff43ed..027e811 100644
--- a/core/java/android/app/ActivityManager.java
+++ b/core/java/android/app/ActivityManager.java
@@ -1829,22 +1829,6 @@
     }
 
     /**
-     * Completely remove the given task.
-     *
-     * @param taskId Identifier of the task to be removed.
-     * @return Returns true if the given task was found and removed.
-     *
-     * @hide
-     */
-    public boolean removeTask(int taskId) throws SecurityException {
-        try {
-            return getService().removeTask(taskId);
-        } catch (RemoteException e) {
-            throw e.rethrowFromSystemServer();
-        }
-    }
-
-    /**
      * Sets the windowing mode for a specific task. Only works on tasks of type
      * {@link WindowConfiguration#ACTIVITY_TYPE_STANDARD}
      * @param taskId The id of the task to set the windowing mode for.
diff --git a/core/java/android/app/TaskStackListener.java b/core/java/android/app/TaskStackListener.java
index 402e209..895d12a 100644
--- a/core/java/android/app/TaskStackListener.java
+++ b/core/java/android/app/TaskStackListener.java
@@ -77,7 +77,7 @@
     }
 
     @Override
-    public void onTaskRemovalStarted(int taskId) {
+    public void onTaskRemovalStarted(int taskId) throws RemoteException {
     }
 
     @Override
@@ -91,11 +91,10 @@
     }
 
     @Override
-    public void onTaskProfileLocked(int taskId, int userId) {
+    public void onTaskProfileLocked(int taskId, int userId) throws RemoteException {
     }
 
     @Override
-    public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot)
-            throws RemoteException {
+    public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) throws RemoteException {
     }
 }
diff --git a/packages/SystemUI/res/drawable/recents_dismiss_all_history.xml b/packages/SystemUI/res/drawable/recents_dismiss_all_history.xml
deleted file mode 100644
index 6a417e6..0000000
--- a/packages/SystemUI/res/drawable/recents_dismiss_all_history.xml
+++ /dev/null
@@ -1,54 +0,0 @@
-<!--
-Copyright (C) 2016 The Android Open Source Project
-
-   Licensed under the Apache License, Version 2 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-         http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
--->
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="16dp"
-    android:width="28dp"
-    android:viewportHeight="48"
-    android:viewportWidth="72" >
-    <group
-        android:name="dismiss_all"
-        android:translateX="48"
-        android:translateY="6" >
-        <group
-            android:name="3"
-            android:translateX="-24"
-            android:translateY="36" >
-            <path
-                android:name="rectangle_path_1_2"
-                android:pathData="M -24.0,-6.0 l 48.0,0 l 0,12.0 l -48.0,0 Z"
-                android:fillColor="#FFFFFFFF"
-                android:fillAlpha="1" />
-        </group>
-        <group
-            android:name="2"
-            android:translateX="-12"
-            android:translateY="18" >
-            <path
-                android:name="rectangle_path_1_1"
-                android:pathData="M -24.0,-6.0 l 48.0,0 l 0,12.0 l -48.0,0 Z"
-                android:fillColor="#FFFFFFFF"
-                android:fillAlpha="1" />
-        </group>
-        <group
-            android:name="1" >
-            <path
-                android:name="rectangle_path_1"
-                android:pathData="M -24.0,-6.0 l 48.0,0 l 0,12.0 l -48.0,0 Z"
-                android:fillColor="#FFFFFFFF"
-                android:fillAlpha="1" />
-        </group>
-    </group>
-</vector>
diff --git a/packages/SystemUI/res/layout/recents_task_view_header.xml b/packages/SystemUI/res/layout/recents_task_view_header.xml
index 5ee242d..1734506 100644
--- a/packages/SystemUI/res/layout/recents_task_view_header.xml
+++ b/packages/SystemUI/res/layout/recents_task_view_header.xml
@@ -66,14 +66,6 @@
         android:alpha="0"
         android:visibility="gone" />
 
-    <!-- The progress indicator shows if auto-paging is enabled -->
-    <ViewStub android:id="@+id/focus_timer_indicator_stub"
-               android:inflatedId="@+id/focus_timer_indicator"
-               android:layout="@layout/recents_task_view_header_progress_bar"
-               android:layout_width="match_parent"
-               android:layout_height="5dp"
-               android:layout_gravity="bottom" />
-
     <!-- The app overlay shows as the user long-presses on the app icon -->
     <ViewStub android:id="@+id/app_overlay_stub"
                android:inflatedId="@+id/app_overlay"
diff --git a/packages/SystemUI/res/values/config.xml b/packages/SystemUI/res/values/config.xml
index 0c24b26..0fe81d9 100644
--- a/packages/SystemUI/res/values/config.xml
+++ b/packages/SystemUI/res/values/config.xml
@@ -167,12 +167,6 @@
     <!-- The animation duration for scrolling the stack to a particular item. -->
     <integer name="recents_animate_task_stack_scroll_duration">200</integer>
 
-    <!-- The animation duration for scrolling the stack to a particular item. -->
-    <integer name="recents_auto_advance_duration">750</integer>
-
-    <!-- The animation duration for subsequent scrolling the stack to a particular item. -->
-    <integer name="recents_subsequent_auto_advance_duration">1000</integer>
-
     <!-- The delay to enforce between each alt-tab key press. -->
     <integer name="recents_alt_tab_key_delay">200</integer>
 
diff --git a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
index d83a6c6..1030fd7 100644
--- a/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
+++ b/packages/SystemUI/src/com/android/keyguard/KeyguardUpdateMonitor.java
@@ -52,7 +52,6 @@
 import android.os.BatteryManager;
 import android.os.CancellationSignal;
 import android.os.Handler;
-import android.os.IBinder;
 import android.os.IRemoteCallback;
 import android.os.Message;
 import android.os.RemoteException;
@@ -78,7 +77,7 @@
 import com.android.internal.telephony.TelephonyIntents;
 import com.android.internal.widget.LockPatternUtils;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 
 import com.google.android.collect.Lists;
 
@@ -1771,7 +1770,7 @@
         }
     }
 
-    private final TaskStackListener mTaskStackListener = new TaskStackListener() {
+    private final TaskStackChangeListener mTaskStackListener = new TaskStackChangeListener() {
         @Override
         public void onTaskStackChangedBackground() {
             try {
diff --git a/packages/SystemUI/src/com/android/systemui/keyguard/WorkLockActivityController.java b/packages/SystemUI/src/com/android/systemui/keyguard/WorkLockActivityController.java
index f198229..4c3d5ba 100644
--- a/packages/SystemUI/src/com/android/systemui/keyguard/WorkLockActivityController.java
+++ b/packages/SystemUI/src/com/android/systemui/keyguard/WorkLockActivityController.java
@@ -16,7 +16,6 @@
 
 package com.android.systemui.keyguard;
 
-import android.app.Activity;
 import android.app.ActivityManager;
 import android.app.ActivityOptions;
 import android.app.IActivityManager;
@@ -29,9 +28,8 @@
 import android.os.UserHandle;
 
 import com.android.internal.annotations.VisibleForTesting;
-import com.android.systemui.recents.events.EventBus;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 
 public class WorkLockActivityController {
     private final Context mContext;
@@ -98,7 +96,7 @@
         }
     }
 
-    private final TaskStackListener mLockListener = new TaskStackListener() {
+    private final TaskStackChangeListener mLockListener = new TaskStackChangeListener() {
         @Override
         public void onTaskProfileLocked(int taskId, int userId) {
             startWorkChallengeInTask(taskId, userId);
diff --git a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
index f8996aa..7e87666 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/phone/PipManager.java
@@ -41,8 +41,7 @@
 import com.android.systemui.recents.events.EventBus;
 import com.android.systemui.recents.events.component.ExpandPipEvent;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
-import com.android.systemui.statusbar.CommandQueue;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 
 import java.io.PrintWriter;
 
@@ -70,7 +69,7 @@
     /**
      * Handler for system task stack changes.
      */
-    TaskStackListener mTaskStackListener = new TaskStackListener() {
+    TaskStackChangeListener mTaskStackListener = new TaskStackChangeListener() {
         @Override
         public void onActivityPinned(String packageName, int userId, int taskId, int stackId) {
             mTouchHandler.onActivityPinned();
diff --git a/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java b/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
index e0445c1..312b990 100644
--- a/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
+++ b/packages/SystemUI/src/com/android/systemui/pip/tv/PipManager.java
@@ -20,7 +20,6 @@
 import android.app.ActivityManager.RunningTaskInfo;
 import android.app.ActivityManager.StackInfo;
 import android.app.IActivityManager;
-import android.app.RemoteAction;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -47,7 +46,7 @@
 import com.android.systemui.R;
 import com.android.systemui.pip.BasePipManager;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -621,7 +620,7 @@
         return false;
     }
 
-    private TaskStackListener mTaskStackListener = new TaskStackListener() {
+    private TaskStackChangeListener mTaskStackListener = new TaskStackChangeListener() {
         @Override
         public void onTaskStackChanged() {
             if (DEBUG) Log.d(TAG, "onTaskStackChanged()");
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
index ab2181c..711885c 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivity.java
@@ -17,7 +17,6 @@
 package com.android.systemui.recents;
 
 import android.app.Activity;
-import android.app.ActivityManager;
 import android.app.ActivityOptions;
 import android.app.TaskStackBuilder;
 import android.app.WallpaperManager;
@@ -29,10 +28,10 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
+import android.os.Looper;
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.provider.Settings;
-import android.provider.Settings.Secure;
 import android.util.Log;
 import android.view.KeyEvent;
 import android.view.View;
@@ -42,6 +41,7 @@
 import android.view.WindowManager.LayoutParams;
 
 import com.android.internal.colorextraction.ColorExtractor;
+import com.android.internal.content.PackageMonitor;
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
 import com.android.keyguard.LatencyTracker;
@@ -53,7 +53,6 @@
 import com.android.systemui.recents.events.EventBus;
 import com.android.systemui.recents.events.activity.CancelEnterRecentsWindowAnimationEvent;
 import com.android.systemui.recents.events.activity.ConfigurationChangedEvent;
-import com.android.systemui.recents.events.activity.DebugFlagsChangedEvent;
 import com.android.systemui.recents.events.activity.DismissRecentsToHomeAnimationStarted;
 import com.android.systemui.recents.events.activity.DockedFirstAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.DockedTopTaskEvent;
@@ -61,10 +60,10 @@
 import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.ExitRecentsWindowFirstAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.HideRecentsEvent;
-import com.android.systemui.recents.events.activity.IterateRecentsEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskFailedEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskSucceededEvent;
 import com.android.systemui.recents.events.activity.MultiWindowStateChangedEvent;
+import com.android.systemui.recents.events.activity.PackagesChangedEvent;
 import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent;
 import com.android.systemui.recents.events.activity.ToggleRecentsEvent;
 import com.android.systemui.recents.events.component.ActivityUnpinnedEvent;
@@ -85,10 +84,8 @@
 import com.android.systemui.recents.events.ui.focus.FocusPreviousTaskViewEvent;
 import com.android.systemui.recents.events.ui.focus.NavigateTaskViewEvent;
 import com.android.systemui.recents.events.ui.focus.NavigateTaskViewEvent.Direction;
-import com.android.systemui.recents.misc.DozeTrigger;
 import com.android.systemui.recents.misc.SystemServicesProxy;
 import com.android.systemui.recents.misc.Utilities;
-import com.android.systemui.recents.model.RecentsPackageMonitor;
 import com.android.systemui.recents.model.RecentsTaskLoadPlan;
 import com.android.systemui.recents.model.RecentsTaskLoader;
 import com.android.systemui.recents.model.Task;
@@ -99,7 +96,6 @@
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
-import java.util.List;
 
 /**
  * The main Recents activity that is started from RecentsComponent.
@@ -113,7 +109,23 @@
     public final static int EVENT_BUS_PRIORITY = Recents.EVENT_BUS_PRIORITY + 1;
     public final static int INCOMPATIBLE_APP_ALPHA_DURATION = 150;
 
-    private RecentsPackageMonitor mPackageMonitor;
+    private PackageMonitor mPackageMonitor = new PackageMonitor() {
+            @Override
+            public void onPackageRemoved(String packageName, int uid) {
+                RecentsActivity.this.onPackageChanged(packageName, getChangingUserId());
+            }
+
+            @Override
+            public boolean onPackageChanged(String packageName, int uid, String[] components) {
+                RecentsActivity.this.onPackageChanged(packageName, getChangingUserId());
+                return true;
+            }
+
+            @Override
+            public void onPackageModified(String packageName) {
+                RecentsActivity.this.onPackageChanged(packageName, getChangingUserId());
+            }
+        };
     private Handler mHandler = new Handler();
     private long mLastTabKeyEventTime;
     private boolean mFinishedOnStartup;
@@ -132,7 +144,6 @@
 
     // The trigger to automatically launch the current task
     private int mFocusTimerDuration;
-    private DozeTrigger mIterateTrigger;
     private final UserInteractionEvent mUserInteractionEvent = new UserInteractionEvent();
 
     // Theme and colors
@@ -304,8 +315,8 @@
         EventBus.getDefault().register(this, EVENT_BUS_PRIORITY);
 
         // Initialize the package monitor
-        mPackageMonitor = new RecentsPackageMonitor();
-        mPackageMonitor.register(this);
+        mPackageMonitor.register(this, Looper.getMainLooper(), UserHandle.ALL,
+                true /* externalStorage */);
 
         // Select theme based on wallpaper colors
         mColorExtractor = Dependency.get(SysuiColorExtractor.class);
@@ -327,13 +338,6 @@
         }
 
         mLastConfig = new Configuration(Utilities.getAppConfiguration(this));
-        mFocusTimerDuration = getResources().getInteger(R.integer.recents_auto_advance_duration);
-        mIterateTrigger = new DozeTrigger(mFocusTimerDuration, new Runnable() {
-            @Override
-            public void run() {
-                dismissRecentsToFocusedTask(MetricsEvent.OVERVIEW_SELECT_TIMEOUT);
-            }
-        });
 
         // Set the window background
         mRecentsView.updateBackgroundScrim(getWindow(), isInMultiWindowMode());
@@ -502,7 +506,6 @@
         super.onPause();
 
         mIgnoreAltTabRelease = false;
-        mIterateTrigger.stopDozing();
     }
 
     @Override
@@ -605,8 +608,7 @@
                     if (backward) {
                         EventBus.getDefault().send(new FocusPreviousTaskViewEvent());
                     } else {
-                        EventBus.getDefault().send(
-                                new FocusNextTaskViewEvent(0 /* timerIndicatorDuration */));
+                        EventBus.getDefault().send(new FocusNextTaskViewEvent());
                     }
                     mLastTabKeyEventTime = SystemClock.elapsedRealtime();
 
@@ -664,38 +666,10 @@
         }
     }
 
-    public final void onBusEvent(IterateRecentsEvent event) {
-        final RecentsDebugFlags debugFlags = Recents.getDebugFlags();
-
-        // Start dozing after the recents button is clicked
-        int timerIndicatorDuration = 0;
-        if (debugFlags.isFastToggleRecentsEnabled()) {
-            timerIndicatorDuration = getResources().getInteger(
-                    R.integer.recents_subsequent_auto_advance_duration);
-
-            mIterateTrigger.setDozeDuration(timerIndicatorDuration);
-            if (!mIterateTrigger.isDozing()) {
-                mIterateTrigger.startDozing();
-            } else {
-                mIterateTrigger.poke();
-            }
-        }
-
-        // Focus the next task
-        EventBus.getDefault().send(new FocusNextTaskViewEvent(timerIndicatorDuration));
-
-        MetricsLogger.action(this, MetricsEvent.ACTION_OVERVIEW_PAGE);
-    }
-
     public final void onBusEvent(RecentsActivityStartingEvent event) {
         mRecentsStartRequested = true;
     }
 
-    public final void onBusEvent(UserInteractionEvent event) {
-        // Stop the fast-toggle dozer
-        mIterateTrigger.stopDozing();
-    }
-
     public final void onBusEvent(HideRecentsEvent event) {
         if (event.triggeredFromAltTab) {
             // If we are hiding from releasing Alt-Tab, dismiss Recents to the focused app
@@ -817,11 +791,6 @@
         MetricsLogger.count(this, "overview_screen_pinned", 1);
     }
 
-    public final void onBusEvent(DebugFlagsChangedEvent event) {
-        // Just finish recents so that we can reload the flags anew on the next instantiation
-        finish();
-    }
-
     public final void onBusEvent(StackViewScrolledEvent event) {
         // Once the user has scrolled while holding alt-tab, then we should ignore the release of
         // the key
@@ -881,6 +850,11 @@
         return true;
     }
 
+    public void onPackageChanged(String packageName, int userId) {
+        Recents.getTaskLoader().onPackageChanged(packageName);
+        EventBus.getDefault().send(new PackagesChangedEvent(packageName, userId));
+    }
+
     @Override
     public void dump(String prefix, FileDescriptor fd, PrintWriter writer, String[] args) {
         super.dump(prefix, fd, writer, args);
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivityLaunchState.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivityLaunchState.java
index 5b8ed94..2c3a727 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsActivityLaunchState.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsActivityLaunchState.java
@@ -60,12 +60,6 @@
         RecentsDebugFlags debugFlags = Recents.getDebugFlags();
         RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();
         if (launchedFromApp) {
-            if (!launchState.launchedWithAltTab && debugFlags.isFastToggleRecentsEnabled()) {
-                // If fast toggling, focus the front most task so that the next tap will launch the
-                // task
-                return numTasks - 1;
-            }
-
             if (launchState.launchedFromBlacklistedApp) {
                 // If we are launching from a blacklisted app, focus the front most task so that the
                 // next tap will launch the task
@@ -80,12 +74,6 @@
             // If coming from another app, focus the next task
             return Math.max(0, numTasks - 2);
         } else {
-            if (!launchState.launchedWithAltTab && debugFlags.isFastToggleRecentsEnabled()) {
-                // If fast toggling, defer focusing until the next tap (which will automatically
-                // focus the front most task)
-                return -1;
-            }
-
             // If coming from home, focus the front most task
             return numTasks - 1;
         }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
index cb00843..a8dafbf 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsDebugFlags.java
@@ -16,55 +16,16 @@
 
 package com.android.systemui.recents;
 
-import android.content.Context;
-
-import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.events.activity.DebugFlagsChangedEvent;
-import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.tuner.TunerService;
-
-/**
- * Tunable debug flags
- */
 public class RecentsDebugFlags {
 
     public static class Static {
         // Enables debug drawing for the transition thumbnail
         public static final boolean EnableTransitionThumbnailDebugMode = false;
-        // This disables the bitmap and icon caches
-        public static final boolean DisableBackgroundCache = false;
-        // Enables the button above the stack
-        public static final boolean EnableStackActionButton = true;
-        // Overrides the Tuner flags and enables the timeout
-        private static final boolean EnableFastToggleTimeout = false;
-        // Overrides the Tuner flags and enables the paging via the Recents button
-        private static final boolean EnablePaging = false;
+        // Enables debug thumbnail to be fetched
+        public static final boolean EnableThumbnailDebugMode = false;
+
         // Disables enter and exit transitions for other tasks for low ram devices
         public static final boolean DisableRecentsLowRamEnterExitAnimation = false;
 
-        // Enables us to create mock recents tasks
-        public static final boolean EnableMockTasks = false;
-        // Defines the number of mock recents packages to create
-        public static final int MockTasksPackageCount = 3;
-        // Defines the number of mock recents tasks to create
-        public static final int MockTaskCount = 100;
-    }
-
-    /**
-     * @return whether we are enabling fast toggling.
-     */
-    public boolean isFastToggleRecentsEnabled() {
-        SystemServicesProxy ssp = Recents.getSystemServices();
-        if (ssp.isTouchExplorationEnabled()) {
-            return false;
-        }
-        return Static.EnableFastToggleTimeout;
-    }
-
-    /**
-     * @return whether we are enabling paging.
-     */
-    public boolean isPagingEnabled() {
-        return Static.EnablePaging;
     }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
index 4e721d7..3f8d53f 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/RecentsImpl.java
@@ -18,7 +18,6 @@
 
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_HOME;
 import static android.app.WindowConfiguration.ACTIVITY_TYPE_RECENTS;
-import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
 import static android.view.View.MeasureSpec;
 
 import android.app.ActivityManager;
@@ -56,7 +55,6 @@
 import com.android.systemui.recents.events.activity.DockedTopTaskEvent;
 import com.android.systemui.recents.events.activity.EnterRecentsWindowLastAnimationFrameEvent;
 import com.android.systemui.recents.events.activity.HideRecentsEvent;
-import com.android.systemui.recents.events.activity.IterateRecentsEvent;
 import com.android.systemui.recents.events.activity.LaunchMostRecentTaskRequestEvent;
 import com.android.systemui.recents.events.activity.LaunchNextTaskRequestEvent;
 import com.android.systemui.recents.events.activity.RecentsActivityStartingEvent;
@@ -72,7 +70,7 @@
 import com.android.systemui.recents.misc.DozeTrigger;
 import com.android.systemui.recents.misc.ForegroundThread;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 import com.android.systemui.recents.model.RecentsTaskLoadPlan;
 import com.android.systemui.recents.model.RecentsTaskLoader;
 import com.android.systemui.recents.model.Task;
@@ -84,7 +82,6 @@
 import com.android.systemui.recents.views.TaskStackLayoutAlgorithm;
 import com.android.systemui.recents.views.TaskStackLayoutAlgorithm.VisibilityReport;
 import com.android.systemui.recents.views.TaskStackView;
-import com.android.systemui.recents.views.TaskStackViewScroller;
 import com.android.systemui.recents.views.TaskViewHeader;
 import com.android.systemui.recents.views.TaskViewTransform;
 import com.android.systemui.recents.views.grid.TaskGridLayoutAlgorithm;
@@ -116,10 +113,10 @@
     public final static String RECENTS_ACTIVITY = "com.android.systemui.recents.RecentsActivity";
 
     /**
-     * An implementation of TaskStackListener, that allows us to listen for changes to the system
+     * An implementation of TaskStackChangeListener, that allows us to listen for changes to the system
      * task stacks and update recents accordingly.
      */
-    class TaskStackListenerImpl extends TaskStackListener {
+    class TaskStackListenerImpl extends TaskStackChangeListener {
 
         @Override
         public void onTaskStackChangedBackground() {
@@ -408,22 +405,17 @@
                 RecentsConfiguration config = Recents.getConfiguration();
                 RecentsActivityLaunchState launchState = config.getLaunchState();
                 if (!launchState.launchedWithAltTab) {
-                    // Has the user tapped quickly?
-                    boolean isQuickTap = elapsedTime < ViewConfiguration.getDoubleTapTimeout();
                     if (Recents.getConfiguration().isGridEnabled) {
+                        // Has the user tapped quickly?
+                        boolean isQuickTap = elapsedTime < ViewConfiguration.getDoubleTapTimeout();
                         if (isQuickTap) {
                             EventBus.getDefault().post(new LaunchNextTaskRequestEvent());
                         } else {
                             EventBus.getDefault().post(new LaunchMostRecentTaskRequestEvent());
                         }
                     } else {
-                        if (!debugFlags.isPagingEnabled() || isQuickTap) {
-                            // Launch the next focused task
-                            EventBus.getDefault().post(new LaunchNextTaskRequestEvent());
-                        } else {
-                            // Notify recents to move onto the next task
-                            EventBus.getDefault().post(new IterateRecentsEvent());
-                        }
+                        // Launch the next focused task
+                        EventBus.getDefault().post(new LaunchNextTaskRequestEvent());
                     }
                 } else {
                     // If the user has toggled it too quickly, then just eat up the event here (it's
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/DebugFlagsChangedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/DebugFlagsChangedEvent.java
deleted file mode 100644
index fe3bf26..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/DebugFlagsChangedEvent.java
+++ /dev/null
@@ -1,26 +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.systemui.recents.events.activity;
-
-import com.android.systemui.recents.events.EventBus;
-
-/**
- * This is sent when the SystemUI tuner changes a flag.
- */
-public class DebugFlagsChangedEvent extends EventBus.Event {
-    // Simple event
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/IterateRecentsEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/IterateRecentsEvent.java
deleted file mode 100644
index f7b2706..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/IterateRecentsEvent.java
+++ /dev/null
@@ -1,27 +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.systemui.recents.events.activity;
-
-import com.android.systemui.recents.events.EventBus;
-
-/**
- * This is sent when the user taps on the Overview button to iterate to the next item in the
- * Recents list.
- */
-public class IterateRecentsEvent extends EventBus.Event {
-    // Simple event
-}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/activity/PackagesChangedEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/activity/PackagesChangedEvent.java
index 3b68574..47670e0 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/activity/PackagesChangedEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/activity/PackagesChangedEvent.java
@@ -17,22 +17,20 @@
 package com.android.systemui.recents.events.activity;
 
 import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.model.RecentsPackageMonitor;
 import com.android.systemui.recents.views.TaskStackView;
+import com.android.systemui.recents.RecentsActivity;
 
 /**
- * This event is sent by {@link RecentsPackageMonitor} when a package on the the system changes.
+ * This event is sent by {@link RecentsActivity} when a package on the the system changes.
  * {@link TaskStackView}s listen for this event, and remove the tasks associated with the removed
  * packages.
  */
 public class PackagesChangedEvent extends EventBus.Event {
 
-    public final RecentsPackageMonitor monitor;
     public final String packageName;
     public final int userId;
 
-    public PackagesChangedEvent(RecentsPackageMonitor monitor, String packageName, int userId) {
-        this.monitor = monitor;
+    public PackagesChangedEvent(String packageName, int userId) {
         this.packageName = packageName;
         this.userId = userId;
     }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/events/ui/focus/FocusNextTaskViewEvent.java b/packages/SystemUI/src/com/android/systemui/recents/events/ui/focus/FocusNextTaskViewEvent.java
index a1e4957..171ab5e 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/events/ui/focus/FocusNextTaskViewEvent.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/events/ui/focus/FocusNextTaskViewEvent.java
@@ -22,10 +22,5 @@
  * Focuses the next task view in the stack.
  */
 public class FocusNextTaskViewEvent extends EventBus.Event {
-
-    public final int timerIndicatorDuration;
-
-    public FocusNextTaskViewEvent(int timerIndicatorDuration) {
-        this.timerIndicatorDuration = timerIndicatorDuration;
-    }
+    // Simple event
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
index b1eb77d..a392eff 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/SystemServicesProxy.java
@@ -31,7 +31,6 @@
 import android.annotation.Nullable;
 import android.app.ActivityManager;
 import android.app.ActivityManager.StackInfo;
-import android.app.ActivityManager.TaskSnapshot;
 import android.app.ActivityOptions;
 import android.app.AppGlobals;
 import android.app.IActivityManager;
@@ -55,15 +54,13 @@
 import android.graphics.PorterDuffXfermode;
 import android.graphics.Rect;
 import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Handler;
 import android.os.IRemoteCallback;
-import android.os.Message;
+import android.os.Looper;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.SystemProperties;
-import android.os.Trace;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
@@ -89,7 +86,7 @@
 import com.android.systemui.UiOffloadThread;
 import com.android.systemui.pip.tv.PipMenuActivity;
 import com.android.systemui.recents.Recents;
-import com.android.systemui.recents.RecentsDebugFlags;
+import com.android.systemui.recents.RecentsDebugFlags.Static;
 import com.android.systemui.recents.RecentsImpl;
 import com.android.systemui.recents.model.Task;
 import com.android.systemui.recents.model.ThumbnailData;
@@ -99,7 +96,6 @@
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
-import java.util.Random;
 
 /**
  * Acts as a shim around the real system services that we need to access data from, and provides
@@ -138,17 +134,17 @@
     UserManager mUm;
     Display mDisplay;
     String mRecentsPackage;
+    private TaskStackChangeListeners mTaskStackChangeListeners;
     private int mCurrentUserId;
 
     boolean mIsSafeMode;
 
-    Bitmap mDummyIcon;
     int mDummyThumbnailWidth;
     int mDummyThumbnailHeight;
     Paint mBgProtectionPaint;
     Canvas mBgProtectionCanvas;
 
-    private final Handler mHandler = new H();
+    private final Handler mHandler = new Handler();
     private final Runnable mGcRunnable = new Runnable() {
         @Override
         public void run() {
@@ -159,144 +155,10 @@
 
     private final UiOffloadThread mUiOffloadThread = Dependency.get(UiOffloadThread.class);
 
-    /**
-     * An abstract class to track task stack changes.
-     * Classes should implement this instead of {@link android.app.ITaskStackListener}
-     * to reduce IPC calls from system services. These callbacks will be called on the main thread.
-     */
-    public abstract static class TaskStackListener {
-        /**
-         * NOTE: This call is made of the thread that the binder call comes in on.
-         */
-        public void onTaskStackChangedBackground() { }
-        public void onTaskStackChanged() { }
-        public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) { }
-        public void onActivityPinned(String packageName, int userId, int taskId, int stackId) { }
-        public void onActivityUnpinned() { }
-        public void onPinnedActivityRestartAttempt(boolean clearedTask) { }
-        public void onPinnedStackAnimationStarted() { }
-        public void onPinnedStackAnimationEnded() { }
-        public void onActivityForcedResizable(String packageName, int taskId, int reason) { }
-        public void onActivityDismissingDockedStack() { }
-        public void onActivityLaunchOnSecondaryDisplayFailed() { }
-        public void onTaskProfileLocked(int taskId, int userId) { }
-
-        /**
-         * Checks that the current user matches the user's SystemUI process. Since
-         * {@link android.app.ITaskStackListener} is not multi-user aware, handlers of
-         * TaskStackListener should make this call to verify that we don't act on events from other
-         * user's processes.
-         */
-        protected final boolean checkCurrentUserId(Context context, boolean debug) {
-            int processUserId = UserHandle.myUserId();
-            int currentUserId = SystemServicesProxy.getInstance(context).getCurrentUser();
-            if (processUserId != currentUserId) {
-                if (debug) {
-                    Log.d(TAG, "UID mismatch. SystemUI is running uid=" + processUserId
-                            + " and the current user is uid=" + currentUserId);
-                }
-                return false;
-            }
-            return true;
-        }
-    }
-
-    /**
-     * Implementation of {@link android.app.ITaskStackListener} to listen task stack changes from
-     * ActivityManagerService.
-     * This simply passes callbacks to listeners through {@link H}.
-     * */
-    private android.app.TaskStackListener mTaskStackListener = new android.app.TaskStackListener() {
-
-        private final List<SystemServicesProxy.TaskStackListener> mTmpListeners = new ArrayList<>();
-
-        @Override
-        public void onTaskStackChanged() throws RemoteException {
-            // Call the task changed callback for the non-ui thread listeners first
-            synchronized (mTaskStackListeners) {
-                mTmpListeners.clear();
-                mTmpListeners.addAll(mTaskStackListeners);
-            }
-            for (int i = mTmpListeners.size() - 1; i >= 0; i--) {
-                mTmpListeners.get(i).onTaskStackChangedBackground();
-            }
-
-            mHandler.removeMessages(H.ON_TASK_STACK_CHANGED);
-            mHandler.sendEmptyMessage(H.ON_TASK_STACK_CHANGED);
-        }
-
-        @Override
-        public void onActivityPinned(String packageName, int userId, int taskId, int stackId)
-                throws RemoteException {
-            mHandler.removeMessages(H.ON_ACTIVITY_PINNED);
-            mHandler.obtainMessage(H.ON_ACTIVITY_PINNED,
-                    new PinnedActivityInfo(packageName, userId, taskId, stackId)).sendToTarget();
-        }
-
-        @Override
-        public void onActivityUnpinned() throws RemoteException {
-            mHandler.removeMessages(H.ON_ACTIVITY_UNPINNED);
-            mHandler.sendEmptyMessage(H.ON_ACTIVITY_UNPINNED);
-        }
-
-        @Override
-        public void onPinnedActivityRestartAttempt(boolean clearedTask)
-                throws RemoteException{
-            mHandler.removeMessages(H.ON_PINNED_ACTIVITY_RESTART_ATTEMPT);
-            mHandler.obtainMessage(H.ON_PINNED_ACTIVITY_RESTART_ATTEMPT, clearedTask ? 1 : 0, 0)
-                    .sendToTarget();
-        }
-
-        @Override
-        public void onPinnedStackAnimationStarted() throws RemoteException {
-            mHandler.removeMessages(H.ON_PINNED_STACK_ANIMATION_STARTED);
-            mHandler.sendEmptyMessage(H.ON_PINNED_STACK_ANIMATION_STARTED);
-        }
-
-        @Override
-        public void onPinnedStackAnimationEnded() throws RemoteException {
-            mHandler.removeMessages(H.ON_PINNED_STACK_ANIMATION_ENDED);
-            mHandler.sendEmptyMessage(H.ON_PINNED_STACK_ANIMATION_ENDED);
-        }
-
-        @Override
-        public void onActivityForcedResizable(String packageName, int taskId, int reason)
-                throws RemoteException {
-            mHandler.obtainMessage(H.ON_ACTIVITY_FORCED_RESIZABLE, taskId, reason, packageName)
-                    .sendToTarget();
-        }
-
-        @Override
-        public void onActivityDismissingDockedStack() throws RemoteException {
-            mHandler.sendEmptyMessage(H.ON_ACTIVITY_DISMISSING_DOCKED_STACK);
-        }
-
-        @Override
-        public void onActivityLaunchOnSecondaryDisplayFailed() throws RemoteException {
-            mHandler.sendEmptyMessage(H.ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED);
-        }
-
-        @Override
-        public void onTaskProfileLocked(int taskId, int userId) {
-            mHandler.obtainMessage(H.ON_TASK_PROFILE_LOCKED, taskId, userId).sendToTarget();
-        }
-
-        @Override
-        public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot)
-                throws RemoteException {
-            mHandler.obtainMessage(H.ON_TASK_SNAPSHOT_CHANGED, taskId, 0, snapshot).sendToTarget();
-        }
-    };
-
     private final UserInfoController.OnUserInfoChangedListener mOnUserInfoChangedListener =
             (String name, Drawable picture, String userAccount) ->
                     mCurrentUserId = mAm.getCurrentUser();
 
-    /**
-     * List of {@link TaskStackListener} registered from {@link #registerTaskStackListener}.
-     */
-    private List<TaskStackListener> mTaskStackListeners = new ArrayList<>();
-
     /** Private constructor */
     private SystemServicesProxy(Context context) {
         mContext = context.getApplicationContext();
@@ -317,6 +179,7 @@
         mRecentsPackage = context.getPackageName();
         mIsSafeMode = mPm.isSafeMode();
         mCurrentUserId = mAm.getCurrentUser();
+        mTaskStackChangeListeners = new TaskStackChangeListeners(Looper.getMainLooper());
 
         // Get the dummy thumbnail width/heights
         Resources res = context.getResources();
@@ -337,12 +200,6 @@
         UserInfoController userInfoController = Dependency.get(UserInfoController.class);
         userInfoController.addCallback(mOnUserInfoChangedListener);
 
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            // Create a dummy icon
-            mDummyIcon = Bitmap.createBitmap(1, 1, Bitmap.Config.ARGB_8888);
-            mDummyIcon.eraseColor(0xFF999999);
-        }
-
         Collections.addAll(sRecentsBlacklist,
                 res.getStringArray(R.array.recents_blacklist_array));
     }
@@ -378,39 +235,6 @@
     public List<ActivityManager.RecentTaskInfo> getRecentTasks(int numTasks, int userId) {
         if (mAm == null) return null;
 
-        // If we are mocking, then create some recent tasks
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            ArrayList<ActivityManager.RecentTaskInfo> tasks =
-                    new ArrayList<ActivityManager.RecentTaskInfo>();
-            int count = Math.min(numTasks, RecentsDebugFlags.Static.MockTaskCount);
-            for (int i = 0; i < count; i++) {
-                // Create a dummy component name
-                int packageIndex = i % RecentsDebugFlags.Static.MockTasksPackageCount;
-                ComponentName cn = new ComponentName("com.android.test" + packageIndex,
-                        "com.android.test" + i + ".Activity");
-                String description = "" + i + " - " +
-                        Long.toString(Math.abs(new Random().nextLong()), 36);
-                // Create the recent task info
-                ActivityManager.RecentTaskInfo rti = new ActivityManager.RecentTaskInfo();
-                rti.id = rti.persistentId = rti.affiliatedTaskId = i;
-                rti.baseIntent = new Intent();
-                rti.baseIntent.setComponent(cn);
-                rti.description = description;
-                rti.lastActiveTime = i;
-                if (i % 2 == 0) {
-                    rti.taskDescription = new ActivityManager.TaskDescription(description,
-                            Bitmap.createBitmap(mDummyIcon), null,
-                            0xFF000000 | (0xFFFFFF & new Random().nextInt()),
-                            0xFF000000 | (0xFFFFFF & new Random().nextInt()),
-                            0, 0);
-                } else {
-                    rti.taskDescription = new ActivityManager.TaskDescription();
-                }
-                tasks.add(rti);
-            }
-            return tasks;
-        }
-
         try {
             List<ActivityManager.RecentTaskInfo> tasks = mIam.getRecentTasks(numTasks,
                     RECENT_IGNORE_UNAVAILABLE, userId).getList();
@@ -638,7 +462,7 @@
         if (mAm == null) return null;
 
         // If we are mocking, then just return a dummy thumbnail
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
+        if (Static.EnableTransitionThumbnailDebugMode) {
             ThumbnailData thumbnailData = new ThumbnailData();
             thumbnailData.thumbnail = Bitmap.createBitmap(mDummyThumbnailWidth,
                     mDummyThumbnailHeight, Bitmap.Config.ARGB_8888);
@@ -684,11 +508,14 @@
     /** Removes the task */
     public void removeTask(final int taskId) {
         if (mAm == null) return;
-        if (RecentsDebugFlags.Static.EnableMockTasks) return;
 
         // Remove the task.
         mUiOffloadThread.submit(() -> {
-            mAm.removeTask(taskId);
+            try {
+                mIam.removeTask(taskId);
+            } catch (RemoteException e) {
+                e.printStackTrace();
+            }
         });
     }
 
@@ -712,7 +539,6 @@
      */
     public ActivityInfo getActivityInfo(ComponentName cn, int userId) {
         if (mIpm == null) return null;
-        if (RecentsDebugFlags.Static.EnableMockTasks) return new ActivityInfo();
 
         try {
             return mIpm.getActivityInfo(cn, PackageManager.GET_META_DATA, userId);
@@ -729,7 +555,6 @@
      */
     public ActivityInfo getActivityInfo(ComponentName cn) {
         if (mPm == null) return null;
-        if (RecentsDebugFlags.Static.EnableMockTasks) return new ActivityInfo();
 
         try {
             return mPm.getActivityInfo(cn, PackageManager.GET_META_DATA);
@@ -745,11 +570,6 @@
     public String getBadgedActivityLabel(ActivityInfo info, int userId) {
         if (mPm == null) return null;
 
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return "Recent Task: " + userId;
-        }
-
         return getBadgedLabel(info.loadLabel(mPm).toString(), userId);
     }
 
@@ -759,11 +579,6 @@
     public String getBadgedApplicationLabel(ApplicationInfo appInfo, int userId) {
         if (mPm == null) return null;
 
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return "Recent Task App: " + userId;
-        }
-
         return getBadgedLabel(appInfo.loadLabel(mPm).toString(), userId);
     }
 
@@ -773,11 +588,6 @@
      */
     public String getBadgedContentDescription(ActivityInfo info, int userId,
             ActivityManager.TaskDescription td, Resources res) {
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return "Recent Task Content Description: " + userId;
-        }
-
         String activityLabel;
         if (td != null && td.getLabel() != null) {
             activityLabel = td.getLabel();
@@ -798,11 +608,6 @@
     public Drawable getBadgedActivityIcon(ActivityInfo info, int userId) {
         if (mPm == null) return null;
 
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return new ColorDrawable(0xFF666666);
-        }
-
         return mDrawableFactory.getBadgedIcon(info, info.applicationInfo, userId);
     }
 
@@ -813,11 +618,6 @@
     public Drawable getBadgedApplicationIcon(ApplicationInfo appInfo, int userId) {
         if (mPm == null) return null;
 
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return new ColorDrawable(0xFF666666);
-        }
-
         return mDrawableFactory.getBadgedIcon(appInfo, userId);
     }
 
@@ -826,12 +626,6 @@
      */
     public Drawable getBadgedTaskDescriptionIcon(ActivityManager.TaskDescription taskDescription,
             int userId, Resources res) {
-
-        // If we are mocking, then return a mock label
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return new ColorDrawable(0xFF666666);
-        }
-
         Bitmap tdIcon = taskDescription.getInMemoryIcon();
         if (tdIcon == null) {
             tdIcon = ActivityManager.TaskDescription.loadTaskDescriptionIcon(
@@ -867,11 +661,6 @@
     public Drawable getActivityBanner(ActivityInfo info) {
         if (mPm == null) return null;
 
-        // If we are mocking, then return a mock banner
-        if (RecentsDebugFlags.Static.EnableMockTasks) {
-            return new ColorDrawable(0xFF666666);
-        }
-
         Drawable banner = info.loadBanner(mPm);
         return banner;
     }
@@ -1084,19 +873,11 @@
      * Registers a task stack listener with the system.
      * This should be called on the main thread.
      */
-    public void registerTaskStackListener(TaskStackListener listener) {
+    public void registerTaskStackListener(TaskStackChangeListener listener) {
         if (mIam == null) return;
 
-        synchronized (mTaskStackListeners) {
-            mTaskStackListeners.add(listener);
-            if (mTaskStackListeners.size() == 1) {
-                // Register mTaskStackListener to IActivityManager only once if needed.
-                try {
-                    mIam.registerTaskStackListener(mTaskStackListener);
-                } catch (Exception e) {
-                    Log.w(TAG, "Failed to call registerTaskStackListener", e);
-                }
-            }
+        synchronized (mTaskStackChangeListeners) {
+            mTaskStackChangeListeners.addListener(mIam, listener);
         }
     }
 
@@ -1161,23 +942,27 @@
     /**
      * Updates the visibility of recents.
      */
-    public void setRecentsVisibility(boolean visible) {
-        try {
-            mIwm.setRecentsVisibility(visible);
-        } catch (RemoteException e) {
-            Log.e(TAG, "Unable to reach window manager", e);
-        }
+    public void setRecentsVisibility(final boolean visible) {
+        mUiOffloadThread.submit(() -> {
+            try {
+                mIwm.setRecentsVisibility(visible);
+            } catch (RemoteException e) {
+                Log.e(TAG, "Unable to reach window manager", e);
+            }
+        });
     }
 
     /**
      * Updates the visibility of the picture-in-picture.
      */
-    public void setPipVisibility(boolean visible) {
-        try {
-            mIwm.setPipVisibility(visible);
-        } catch (RemoteException e) {
-            Log.e(TAG, "Unable to reach window manager", e);
-        }
+    public void setPipVisibility(final boolean visible) {
+        mUiOffloadThread.submit(() -> {
+            try {
+                mIwm.setPipVisibility(visible);
+            } catch (RemoteException e) {
+                Log.e(TAG, "Unable to reach window manager", e);
+            }
+        });
     }
 
     public boolean isDreaming() {
@@ -1202,115 +987,4 @@
     public interface StartActivityFromRecentsResultListener {
         void onStartActivityResult(boolean succeeded);
     }
-
-    private class PinnedActivityInfo {
-        final String mPackageName;
-        final int mUserId;
-        final int mTaskId;
-        final int mStackId;
-
-        PinnedActivityInfo(String packageName, int userId, int taskId, int stackId) {
-            mPackageName = packageName;
-            mUserId = userId;
-            mTaskId = taskId;
-            mStackId = stackId;
-        }
-    }
-
-    private final class H extends Handler {
-        private static final int ON_TASK_STACK_CHANGED = 1;
-        private static final int ON_TASK_SNAPSHOT_CHANGED = 2;
-        private static final int ON_ACTIVITY_PINNED = 3;
-        private static final int ON_PINNED_ACTIVITY_RESTART_ATTEMPT = 4;
-        private static final int ON_PINNED_STACK_ANIMATION_ENDED = 5;
-        private static final int ON_ACTIVITY_FORCED_RESIZABLE = 6;
-        private static final int ON_ACTIVITY_DISMISSING_DOCKED_STACK = 7;
-        private static final int ON_TASK_PROFILE_LOCKED = 8;
-        private static final int ON_PINNED_STACK_ANIMATION_STARTED = 9;
-        private static final int ON_ACTIVITY_UNPINNED = 10;
-        private static final int ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED = 11;
-
-        @Override
-        public void handleMessage(Message msg) {
-            synchronized (mTaskStackListeners) {
-                switch (msg.what) {
-                    case ON_TASK_STACK_CHANGED: {
-                    Trace.beginSection("onTaskStackChanged");
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onTaskStackChanged();
-                        }
-                    Trace.endSection();
-                        break;
-                    }
-                    case ON_TASK_SNAPSHOT_CHANGED: {
-                    Trace.beginSection("onTaskSnapshotChanged");
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onTaskSnapshotChanged(msg.arg1,
-                                    (TaskSnapshot) msg.obj);
-                        }
-                    Trace.endSection();
-                        break;
-                    }
-                    case ON_ACTIVITY_PINNED: {
-                        final PinnedActivityInfo info = (PinnedActivityInfo) msg.obj;
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onActivityPinned(
-                                    info.mPackageName, info.mUserId, info.mTaskId, info.mStackId);
-                        }
-                        break;
-                    }
-                    case ON_ACTIVITY_UNPINNED: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onActivityUnpinned();
-                        }
-                        break;
-                    }
-                    case ON_PINNED_ACTIVITY_RESTART_ATTEMPT: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onPinnedActivityRestartAttempt(
-                                    msg.arg1 != 0);
-                        }
-                        break;
-                    }
-                    case ON_PINNED_STACK_ANIMATION_STARTED: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onPinnedStackAnimationStarted();
-                        }
-                        break;
-                    }
-                    case ON_PINNED_STACK_ANIMATION_ENDED: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onPinnedStackAnimationEnded();
-                        }
-                        break;
-                    }
-                    case ON_ACTIVITY_FORCED_RESIZABLE: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onActivityForcedResizable(
-                                    (String) msg.obj, msg.arg1, msg.arg2);
-                        }
-                        break;
-                    }
-                    case ON_ACTIVITY_DISMISSING_DOCKED_STACK: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onActivityDismissingDockedStack();
-                        }
-                        break;
-                    }
-                    case ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onActivityLaunchOnSecondaryDisplayFailed();
-                        }
-                        break;
-                    }
-                    case ON_TASK_PROFILE_LOCKED: {
-                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
-                            mTaskStackListeners.get(i).onTaskProfileLocked(msg.arg1, msg.arg2);
-                        }
-                        break;
-                    }
-                }
-            }
-        }
-    }
 }
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListener.java b/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListener.java
new file mode 100644
index 0000000..6d0952a
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListener.java
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.recents.misc;
+
+import android.app.ActivityManager.TaskSnapshot;
+import android.content.Context;
+import android.os.UserHandle;
+import android.util.Log;
+
+/**
+ * An abstract class to track task stack changes.
+ * Classes should implement this instead of {@link android.app.ITaskStackListener}
+ * to reduce IPC calls from system services. These callbacks will be called on the main thread.
+ */
+public abstract class TaskStackChangeListener {
+
+    /**
+     * NOTE: This call is made of the thread that the binder call comes in on.
+     */
+    public void onTaskStackChangedBackground() { }
+    public void onTaskStackChanged() { }
+    public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) { }
+    public void onActivityPinned(String packageName, int userId, int taskId, int stackId) { }
+    public void onActivityUnpinned() { }
+    public void onPinnedActivityRestartAttempt(boolean clearedTask) { }
+    public void onPinnedStackAnimationStarted() { }
+    public void onPinnedStackAnimationEnded() { }
+    public void onActivityForcedResizable(String packageName, int taskId, int reason) { }
+    public void onActivityDismissingDockedStack() { }
+    public void onActivityLaunchOnSecondaryDisplayFailed() { }
+    public void onTaskProfileLocked(int taskId, int userId) { }
+
+    /**
+     * Checks that the current user matches the user's SystemUI process. Since
+     * {@link android.app.ITaskStackListener} is not multi-user aware, handlers of
+     * TaskStackChangeListener should make this call to verify that we don't act on events from other
+     * user's processes.
+     */
+    protected final boolean checkCurrentUserId(Context context, boolean debug) {
+        int processUserId = UserHandle.myUserId();
+        int currentUserId = SystemServicesProxy.getInstance(context).getCurrentUser();
+        if (processUserId != currentUserId) {
+            if (debug) {
+                Log.d(SystemServicesProxy.TAG, "UID mismatch. SystemUI is running uid=" + processUserId
+                        + " and the current user is uid=" + currentUserId);
+            }
+            return false;
+        }
+        return true;
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListeners.java b/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListeners.java
new file mode 100644
index 0000000..8eb70f0
--- /dev/null
+++ b/packages/SystemUI/src/com/android/systemui/recents/misc/TaskStackChangeListeners.java
@@ -0,0 +1,254 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.systemui.recents.misc;
+
+import android.app.ActivityManager.TaskSnapshot;
+import android.app.IActivityManager;
+import android.app.TaskStackListener;
+import android.os.Handler;
+import android.os.Looper;
+import android.os.Message;
+import android.os.RemoteException;
+import android.os.Trace;
+import android.util.Log;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Tracks all the task stack listeners
+ */
+public class TaskStackChangeListeners extends TaskStackListener {
+
+    private static final String TAG = TaskStackChangeListeners.class.getSimpleName();
+
+    /**
+     * List of {@link TaskStackChangeListener} registered from {@link #addListener}.
+     */
+    private final List<TaskStackChangeListener> mTaskStackListeners = new ArrayList<>();
+    private final List<TaskStackChangeListener> mTmpListeners = new ArrayList<>();
+
+    private final Handler mHandler;
+
+    public TaskStackChangeListeners(Looper looper) {
+        mHandler = new H(looper);
+    }
+
+    public void addListener(IActivityManager am, TaskStackChangeListener listener) {
+        mTaskStackListeners.add(listener);
+        if (mTaskStackListeners.size() == 1) {
+            // Register mTaskStackListener to IActivityManager only once if needed.
+            try {
+                am.registerTaskStackListener(this);
+            } catch (Exception e) {
+                Log.w(TAG, "Failed to call registerTaskStackListener", e);
+            }
+        }
+    }
+
+    @Override
+    public void onTaskStackChanged() throws RemoteException {
+        // Call the task changed callback for the non-ui thread listeners first
+        synchronized (mTaskStackListeners) {
+            mTmpListeners.clear();
+            mTmpListeners.addAll(mTaskStackListeners);
+        }
+        for (int i = mTmpListeners.size() - 1; i >= 0; i--) {
+            mTmpListeners.get(i).onTaskStackChangedBackground();
+        }
+
+        mHandler.removeMessages(H.ON_TASK_STACK_CHANGED);
+        mHandler.sendEmptyMessage(H.ON_TASK_STACK_CHANGED);
+    }
+
+    @Override
+    public void onActivityPinned(String packageName, int userId, int taskId, int stackId)
+            throws RemoteException {
+        mHandler.removeMessages(H.ON_ACTIVITY_PINNED);
+        mHandler.obtainMessage(H.ON_ACTIVITY_PINNED,
+                new PinnedActivityInfo(packageName, userId, taskId, stackId)).sendToTarget();
+    }
+
+    @Override
+    public void onActivityUnpinned() throws RemoteException {
+        mHandler.removeMessages(H.ON_ACTIVITY_UNPINNED);
+        mHandler.sendEmptyMessage(H.ON_ACTIVITY_UNPINNED);
+    }
+
+    @Override
+    public void onPinnedActivityRestartAttempt(boolean clearedTask)
+            throws RemoteException{
+        mHandler.removeMessages(H.ON_PINNED_ACTIVITY_RESTART_ATTEMPT);
+        mHandler.obtainMessage(H.ON_PINNED_ACTIVITY_RESTART_ATTEMPT, clearedTask ? 1 : 0, 0)
+                .sendToTarget();
+    }
+
+    @Override
+    public void onPinnedStackAnimationStarted() throws RemoteException {
+        mHandler.removeMessages(H.ON_PINNED_STACK_ANIMATION_STARTED);
+        mHandler.sendEmptyMessage(H.ON_PINNED_STACK_ANIMATION_STARTED);
+    }
+
+    @Override
+    public void onPinnedStackAnimationEnded() throws RemoteException {
+        mHandler.removeMessages(H.ON_PINNED_STACK_ANIMATION_ENDED);
+        mHandler.sendEmptyMessage(H.ON_PINNED_STACK_ANIMATION_ENDED);
+    }
+
+    @Override
+    public void onActivityForcedResizable(String packageName, int taskId, int reason)
+            throws RemoteException {
+        mHandler.obtainMessage(H.ON_ACTIVITY_FORCED_RESIZABLE, taskId, reason, packageName)
+                .sendToTarget();
+    }
+
+    @Override
+    public void onActivityDismissingDockedStack() throws RemoteException {
+        mHandler.sendEmptyMessage(H.ON_ACTIVITY_DISMISSING_DOCKED_STACK);
+    }
+
+    @Override
+    public void onActivityLaunchOnSecondaryDisplayFailed() throws RemoteException {
+        mHandler.sendEmptyMessage(H.ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED);
+    }
+
+    @Override
+    public void onTaskProfileLocked(int taskId, int userId) throws RemoteException {
+        mHandler.obtainMessage(H.ON_TASK_PROFILE_LOCKED, taskId, userId).sendToTarget();
+    }
+
+    @Override
+    public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot)
+            throws RemoteException {
+        mHandler.obtainMessage(H.ON_TASK_SNAPSHOT_CHANGED, taskId, 0, snapshot).sendToTarget();
+    }
+
+    private final class H extends Handler {
+        private static final int ON_TASK_STACK_CHANGED = 1;
+        private static final int ON_TASK_SNAPSHOT_CHANGED = 2;
+        private static final int ON_ACTIVITY_PINNED = 3;
+        private static final int ON_PINNED_ACTIVITY_RESTART_ATTEMPT = 4;
+        private static final int ON_PINNED_STACK_ANIMATION_ENDED = 5;
+        private static final int ON_ACTIVITY_FORCED_RESIZABLE = 6;
+        private static final int ON_ACTIVITY_DISMISSING_DOCKED_STACK = 7;
+        private static final int ON_TASK_PROFILE_LOCKED = 8;
+        private static final int ON_PINNED_STACK_ANIMATION_STARTED = 9;
+        private static final int ON_ACTIVITY_UNPINNED = 10;
+        private static final int ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED = 11;
+
+        public H(Looper looper) {
+            super(looper);
+        }
+
+        @Override
+        public void handleMessage(Message msg) {
+            synchronized (mTaskStackListeners) {
+                switch (msg.what) {
+                    case ON_TASK_STACK_CHANGED: {
+                        Trace.beginSection("onTaskStackChanged");
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onTaskStackChanged();
+                        }
+                        Trace.endSection();
+                        break;
+                    }
+                    case ON_TASK_SNAPSHOT_CHANGED: {
+                        Trace.beginSection("onTaskSnapshotChanged");
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onTaskSnapshotChanged(msg.arg1,
+                                    (TaskSnapshot) msg.obj);
+                        }
+                        Trace.endSection();
+                        break;
+                    }
+                    case ON_ACTIVITY_PINNED: {
+                        final PinnedActivityInfo info = (PinnedActivityInfo) msg.obj;
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onActivityPinned(
+                                    info.mPackageName, info.mUserId, info.mTaskId, info.mStackId);
+                        }
+                        break;
+                    }
+                    case ON_ACTIVITY_UNPINNED: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onActivityUnpinned();
+                        }
+                        break;
+                    }
+                    case ON_PINNED_ACTIVITY_RESTART_ATTEMPT: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onPinnedActivityRestartAttempt(
+                                    msg.arg1 != 0);
+                        }
+                        break;
+                    }
+                    case ON_PINNED_STACK_ANIMATION_STARTED: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onPinnedStackAnimationStarted();
+                        }
+                        break;
+                    }
+                    case ON_PINNED_STACK_ANIMATION_ENDED: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onPinnedStackAnimationEnded();
+                        }
+                        break;
+                    }
+                    case ON_ACTIVITY_FORCED_RESIZABLE: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onActivityForcedResizable(
+                                    (String) msg.obj, msg.arg1, msg.arg2);
+                        }
+                        break;
+                    }
+                    case ON_ACTIVITY_DISMISSING_DOCKED_STACK: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onActivityDismissingDockedStack();
+                        }
+                        break;
+                    }
+                    case ON_ACTIVITY_LAUNCH_ON_SECONDARY_DISPLAY_FAILED: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onActivityLaunchOnSecondaryDisplayFailed();
+                        }
+                        break;
+                    }
+                    case ON_TASK_PROFILE_LOCKED: {
+                        for (int i = mTaskStackListeners.size() - 1; i >= 0; i--) {
+                            mTaskStackListeners.get(i).onTaskProfileLocked(msg.arg1, msg.arg2);
+                        }
+                        break;
+                    }
+                }
+            }
+        }
+    }
+
+    private static class PinnedActivityInfo {
+        final String mPackageName;
+        final int mUserId;
+        final int mTaskId;
+        final int mStackId;
+
+        PinnedActivityInfo(String packageName, int userId, int taskId, int stackId) {
+            mPackageName = packageName;
+            mUserId = userId;
+            mTaskId = taskId;
+            mStackId = stackId;
+        }
+    }
+}
diff --git a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsPackageMonitor.java b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsPackageMonitor.java
deleted file mode 100644
index 308cece..0000000
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsPackageMonitor.java
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.android.systemui.recents.model;
-
-import android.content.Context;
-import android.os.UserHandle;
-
-import com.android.internal.content.PackageMonitor;
-import com.android.systemui.recents.events.EventBus;
-import com.android.systemui.recents.events.activity.PackagesChangedEvent;
-import com.android.systemui.recents.misc.ForegroundThread;
-
-/**
- * The package monitor listens for changes from PackageManager to update the contents of the
- * Recents list.
- */
-public class RecentsPackageMonitor extends PackageMonitor {
-
-    /** Registers the broadcast receivers with the specified callbacks. */
-    public void register(Context context) {
-        try {
-            // We register for events from all users, but will cross-reference them with
-            // packages for the current user and any profiles they have.  Ensure that events are
-            // handled in a background thread.
-            register(context, ForegroundThread.get().getLooper(), UserHandle.ALL, true);
-        } catch (IllegalStateException e) {
-            e.printStackTrace();
-        }
-    }
-
-    /** Unregisters the broadcast receivers. */
-    @Override
-    public void unregister() {
-        try {
-            super.unregister();
-        } catch (IllegalStateException e) {
-            e.printStackTrace();
-        }
-    }
-
-    @Override
-    public void onPackageRemoved(String packageName, int uid) {
-        // Notify callbacks on the main thread that a package has changed
-        final int eventUserId = getChangingUserId();
-        EventBus.getDefault().post(new PackagesChangedEvent(this, packageName, eventUserId));
-    }
-
-    @Override
-    public boolean onPackageChanged(String packageName, int uid, String[] components) {
-        onPackageModified(packageName);
-        return true;
-    }
-
-    @Override
-    public void onPackageModified(String packageName) {
-        // Notify callbacks on the main thread that a package has changed
-        final int eventUserId = getChangingUserId();
-        EventBus.getDefault().post(new PackagesChangedEvent(this, packageName, eventUserId));
-    }
-}
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 94558c3..3494a00 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/model/RecentsTaskLoader.java
@@ -256,7 +256,7 @@
     // This activity info LruCache is useful because it can be expensive to retrieve ActivityInfos
     // for many tasks, which we use to get the activity labels and icons.  Unlike the other caches
     // below, this is per-package so we can't invalidate the items in the cache based on the last
-    // active time.  Instead, we rely on the RecentsPackageMonitor to keep us informed whenever a
+    // active time.  Instead, we rely on the PackageMonitor to keep us informed whenever a
     // package in the cache has been updated, so that we may remove it.
     private final LruCache<ComponentName, ActivityInfo> mActivityInfoCache;
     private final TaskKeyLruCache<Drawable> mIconCache;
@@ -295,8 +295,6 @@
                 context.getColor(R.color.recents_task_view_default_background_color);
         mMaxThumbnailCacheSize = res.getInteger(R.integer.config_recents_max_thumbnail_count);
         mMaxIconCacheSize = res.getInteger(R.integer.config_recents_max_icon_count);
-        int iconCacheSize = RecentsDebugFlags.Static.DisableBackgroundCache ? 1 :
-                mMaxIconCacheSize;
 
         // Create the default assets
         Bitmap icon = Bitmap.createBitmap(1, 1, Bitmap.Config.ALPHA_8);
@@ -308,7 +306,7 @@
         mHighResThumbnailLoader = new HighResThumbnailLoader(Recents.getSystemServices(),
                 Looper.getMainLooper(), Recents.getConfiguration().isLowRamDevice);
         mLoadQueue = new TaskResourceLoadQueue();
-        mIconCache = new TaskKeyLruCache<>(iconCacheSize, mClearActivityInfoOnEviction);
+        mIconCache = new TaskKeyLruCache<>(mMaxIconCacheSize, mClearActivityInfoOnEviction);
         mActivityLabelCache = new TaskKeyLruCache<>(numRecentTasks, mClearActivityInfoOnEviction);
         mContentDescriptionCache = new TaskKeyLruCache<>(numRecentTasks,
                 mClearActivityInfoOnEviction);
@@ -437,6 +435,21 @@
         }
     }
 
+    public void onPackageChanged(String packageName) {
+        // Remove all the cached activity infos for this package.  The other caches do not need to
+        // be pruned at this time, as the TaskKey expiration checks will flush them next time their
+        // cached contents are requested
+        Map<ComponentName, ActivityInfo> activityInfoCache = mActivityInfoCache.snapshot();
+        for (ComponentName cn : activityInfoCache.keySet()) {
+            if (cn.getPackageName().equals(packageName)) {
+                if (DEBUG) {
+                    Log.d(TAG, "Removing activity info from cache: " + cn);
+                }
+                mActivityInfoCache.remove(cn);
+            }
+        }
+    }
+
     /**
      * Returns the cached task label if the task key is not expired, updating the cache if it is.
      */
@@ -625,23 +638,6 @@
         mLoadQueue.clearTasks();
     }
 
-    /**** Event Bus Events ****/
-
-    public final void onBusEvent(PackagesChangedEvent event) {
-        // Remove all the cached activity infos for this package.  The other caches do not need to
-        // be pruned at this time, as the TaskKey expiration checks will flush them next time their
-        // cached contents are requested
-        Map<ComponentName, ActivityInfo> activityInfoCache = mActivityInfoCache.snapshot();
-        for (ComponentName cn : activityInfoCache.keySet()) {
-            if (cn.getPackageName().equals(event.packageName)) {
-                if (DEBUG) {
-                    Log.d(TAG, "Removing activity info from cache: " + cn);
-                }
-                mActivityInfoCache.remove(cn);
-            }
-        }
-    }
-
     public synchronized void dump(String prefix, PrintWriter writer) {
         String innerPrefix = prefix + "  ";
 
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
index e2f157e..e1b22b4 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsView.java
@@ -160,22 +160,20 @@
         mEmptyView = (TextView) inflater.inflate(R.layout.recents_empty, this, false);
         addView(mEmptyView);
 
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            if (mStackActionButton != null) {
-                removeView(mStackActionButton);
-            }
-            mStackActionButton = (TextView) inflater.inflate(Recents.getConfiguration()
-                            .isLowRamDevice
-                        ? R.layout.recents_low_ram_stack_action_button
-                        : R.layout.recents_stack_action_button,
-                    this, false);
-
-            mStackButtonShadowRadius = mStackActionButton.getShadowRadius();
-            mStackButtonShadowDistance = new PointF(mStackActionButton.getShadowDx(),
-                    mStackActionButton.getShadowDy());
-            mStackButtonShadowColor = mStackActionButton.getShadowColor();
-            addView(mStackActionButton);
+        if (mStackActionButton != null) {
+            removeView(mStackActionButton);
         }
+        mStackActionButton = (TextView) inflater.inflate(Recents.getConfiguration()
+                        .isLowRamDevice
+                    ? R.layout.recents_low_ram_stack_action_button
+                    : R.layout.recents_stack_action_button,
+                this, false);
+
+        mStackButtonShadowRadius = mStackActionButton.getShadowRadius();
+        mStackButtonShadowDistance = new PointF(mStackActionButton.getShadowDx(),
+                mStackActionButton.getShadowDy());
+        mStackButtonShadowColor = mStackActionButton.getShadowColor();
+        addView(mStackActionButton);
 
         reevaluateStyles();
     }
@@ -358,9 +356,7 @@
         mEmptyView.setText(msgResId);
         mEmptyView.setVisibility(View.VISIBLE);
         mEmptyView.bringToFront();
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            mStackActionButton.bringToFront();
-        }
+        mStackActionButton.bringToFront();
     }
 
     /**
@@ -370,9 +366,7 @@
         mEmptyView.setVisibility(View.INVISIBLE);
         mTaskStackView.setVisibility(View.VISIBLE);
         mTaskStackView.bringToFront();
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            mStackActionButton.bringToFront();
-        }
+        mStackActionButton.bringToFront();
     }
 
     /**
@@ -420,13 +414,11 @@
                     MeasureSpec.makeMeasureSpec(height, MeasureSpec.AT_MOST));
         }
 
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            // Measure the stack action button within the constraints of the space above the stack
-            Rect buttonBounds = mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect();
-            measureChild(mStackActionButton,
-                    MeasureSpec.makeMeasureSpec(buttonBounds.width(), MeasureSpec.AT_MOST),
-                    MeasureSpec.makeMeasureSpec(buttonBounds.height(), MeasureSpec.AT_MOST));
-        }
+        // Measure the stack action button within the constraints of the space above the stack
+        Rect buttonBounds = mTaskStackView.mLayoutAlgorithm.getStackActionButtonRect();
+        measureChild(mStackActionButton,
+                MeasureSpec.makeMeasureSpec(buttonBounds.width(), MeasureSpec.AT_MOST),
+                MeasureSpec.makeMeasureSpec(buttonBounds.height(), MeasureSpec.AT_MOST));
 
         setMeasuredDimension(width, height);
     }
@@ -460,13 +452,11 @@
         mBackgroundScrim.setBounds(left, top, right, bottom);
         mMultiWindowBackgroundScrim.setBounds(0, 0, mTmpDisplaySize.x, mTmpDisplaySize.y);
 
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            // Layout the stack action button such that its drawable is start-aligned with the
-            // stack, vertically centered in the available space above the stack
-            Rect buttonBounds = getStackActionButtonBoundsFromStackLayout();
-            mStackActionButton.layout(buttonBounds.left, buttonBounds.top, buttonBounds.right,
-                    buttonBounds.bottom);
-        }
+        // Layout the stack action button such that its drawable is start-aligned with the
+        // stack, vertically centered in the available space above the stack
+        Rect buttonBounds = getStackActionButtonBoundsFromStackLayout();
+        mStackActionButton.layout(buttonBounds.left, buttonBounds.top, buttonBounds.right,
+                buttonBounds.bottom);
 
         if (mAwaitingFirstLayout) {
             mAwaitingFirstLayout = false;
@@ -539,10 +529,8 @@
 
     public final void onBusEvent(DismissRecentsToHomeAnimationStarted event) {
         int taskViewExitToHomeDuration = TaskStackAnimationHelper.EXIT_TO_HOME_TRANSLATION_DURATION;
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            // Hide the stack action button
-            EventBus.getDefault().send(new HideStackActionButtonEvent());
-        }
+        // Hide the stack action button
+        EventBus.getDefault().send(new HideStackActionButtonEvent());
         animateBackgroundScrim(0f, taskViewExitToHomeDuration);
 
         if (Recents.getConfiguration().isLowRamDevice) {
@@ -717,18 +705,10 @@
     }
 
     public final void onBusEvent(ShowStackActionButtonEvent event) {
-        if (!RecentsDebugFlags.Static.EnableStackActionButton) {
-            return;
-        }
-
         showStackActionButton(SHOW_STACK_ACTION_BUTTON_DURATION, event.translate);
     }
 
     public final void onBusEvent(HideStackActionButtonEvent event) {
-        if (!RecentsDebugFlags.Static.EnableStackActionButton) {
-            return;
-        }
-
         hideStackActionButton(HIDE_STACK_ACTION_BUTTON_DURATION, true /* translate */);
     }
 
@@ -744,10 +724,6 @@
      * Shows the stack action button.
      */
     private void showStackActionButton(final int duration, final boolean translate) {
-        if (!RecentsDebugFlags.Static.EnableStackActionButton) {
-            return;
-        }
-
         final ReferenceCountedTrigger postAnimationTrigger = new ReferenceCountedTrigger();
         if (mStackActionButton.getVisibility() == View.INVISIBLE) {
             mStackActionButton.setVisibility(View.VISIBLE);
@@ -780,10 +756,6 @@
      * Hides the stack action button.
      */
     private void hideStackActionButton(int duration, boolean translate) {
-        if (!RecentsDebugFlags.Static.EnableStackActionButton) {
-            return;
-        }
-
         final ReferenceCountedTrigger postAnimationTrigger = new ReferenceCountedTrigger();
         hideStackActionButton(duration, translate, postAnimationTrigger);
         postAnimationTrigger.flushLastDecrementRunnables();
@@ -794,10 +766,6 @@
      */
     private void hideStackActionButton(int duration, boolean translate,
                                        final ReferenceCountedTrigger postAnimationTrigger) {
-        if (!RecentsDebugFlags.Static.EnableStackActionButton) {
-            return;
-        }
-
         if (mStackActionButton.getVisibility() == View.VISIBLE) {
             if (translate) {
                 mStackActionButton.animate().translationY(mStackActionButton.getMeasuredHeight()
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
index af95b3c..5ba5f44 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackLayoutAlgorithm.java
@@ -669,7 +669,7 @@
     public int getInitialFocusState() {
         RecentsActivityLaunchState launchState = Recents.getConfiguration().getLaunchState();
         RecentsDebugFlags debugFlags = Recents.getDebugFlags();
-        if (debugFlags.isPagingEnabled() || launchState.launchedWithAltTab) {
+        if (launchState.launchedWithAltTab) {
             return STATE_FOCUSED;
         } else {
             return STATE_UNFOCUSED;
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
index fd29708..cda5fb8 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskStackView.java
@@ -57,7 +57,6 @@
 import com.android.systemui.recents.events.activity.EnterRecentsWindowAnimationCompletedEvent;
 import com.android.systemui.recents.events.activity.HideRecentsEvent;
 import com.android.systemui.recents.events.activity.HideStackActionButtonEvent;
-import com.android.systemui.recents.events.activity.IterateRecentsEvent;
 import com.android.systemui.recents.events.activity.LaunchMostRecentTaskRequestEvent;
 import com.android.systemui.recents.events.activity.LaunchNextTaskRequestEvent;
 import com.android.systemui.recents.events.activity.LaunchTaskEvent;
@@ -1698,15 +1697,11 @@
     }
 
     public final void onBusEvent(ShowStackActionButtonEvent event) {
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            mStackActionButtonVisible = true;
-        }
+        mStackActionButtonVisible = true;
     }
 
     public final void onBusEvent(HideStackActionButtonEvent event) {
-        if (RecentsDebugFlags.Static.EnableStackActionButton) {
-            mStackActionButtonVisible = false;
-        }
+        mStackActionButtonVisible = false;
     }
 
     public final void onBusEvent(LaunchNextTaskRequestEvent event) {
@@ -1844,8 +1839,7 @@
         mStackScroller.stopScroller();
         mStackScroller.stopBoundScrollAnimation();
 
-        setRelativeFocusedTask(true, false /* stackTasksOnly */, true /* animated */, false,
-                event.timerIndicatorDuration);
+        setRelativeFocusedTask(true, false /* stackTasksOnly */, true /* animated */, false, 0);
     }
 
     public final void onBusEvent(FocusPreviousTaskViewEvent event) {
@@ -1869,8 +1863,7 @@
                     EventBus.getDefault().send(new FocusPreviousTaskViewEvent());
                     break;
                 case DOWN:
-                    EventBus.getDefault().send(
-                        new FocusNextTaskViewEvent(0 /* timerIndicatorDuration */));
+                    EventBus.getDefault().send(new FocusNextTaskViewEvent());
                     break;
             }
         }
@@ -1881,7 +1874,7 @@
         mUIDozeTrigger.poke();
 
         RecentsDebugFlags debugFlags = Recents.getDebugFlags();
-        if (debugFlags.isFastToggleRecentsEnabled() && mFocusedTask != null) {
+        if (mFocusedTask != null) {
             TaskView tv = getChildViewForTask(mFocusedTask);
             if (tv != null) {
                 tv.getHeaderView().cancelFocusTimerIndicator();
@@ -1979,13 +1972,6 @@
         event.getAnimationTrigger().increment();
     }
 
-    public final void onBusEvent(IterateRecentsEvent event) {
-        if (!mEnterAnimationComplete) {
-            // Cancel the previous task's window transition before animating the focused state
-            EventBus.getDefault().send(new CancelEnterRecentsWindowAnimationEvent(null));
-        }
-    }
-
     public final void onBusEvent(EnterRecentsWindowAnimationCompletedEvent event) {
         mEnterAnimationComplete = true;
         tryStartEnterAnimation();
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
index c4e4e2e..1420a01 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/TaskViewHeader.java
@@ -460,17 +460,6 @@
         mDismissButton.setClickable(false);
         ((RippleDrawable) mDismissButton.getBackground()).setForceSoftware(true);
 
-        if (Recents.getDebugFlags().isFastToggleRecentsEnabled()) {
-            if (mFocusTimerIndicator == null) {
-                mFocusTimerIndicator = (ProgressBar) Utilities.findViewStubById(this,
-                        R.id.focus_timer_indicator_stub).inflate();
-            }
-            mFocusTimerIndicator.getProgressDrawable()
-                    .setColorFilter(
-                            getSecondaryColor(t.colorPrimary, t.useLightOnPrimaryColor),
-                            PorterDuff.Mode.SRC_IN);
-        }
-
         // In accessibility, a single click on the focused app info button will show it
         if (touchExplorationEnabled) {
             mIconView.setContentDescription(t.appInfoDescription);
diff --git a/packages/SystemUI/src/com/android/systemui/stackdivider/ForcedResizableInfoActivityController.java b/packages/SystemUI/src/com/android/systemui/stackdivider/ForcedResizableInfoActivityController.java
index 578a18a..0997983 100644
--- a/packages/SystemUI/src/com/android/systemui/stackdivider/ForcedResizableInfoActivityController.java
+++ b/packages/SystemUI/src/com/android/systemui/stackdivider/ForcedResizableInfoActivityController.java
@@ -32,7 +32,7 @@
 import com.android.systemui.recents.events.activity.AppTransitionFinishedEvent;
 import com.android.systemui.recents.events.component.ShowUserToastEvent;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 import com.android.systemui.stackdivider.events.StartedDragingEvent;
 import com.android.systemui.stackdivider.events.StoppedDragingEvent;
 
@@ -76,7 +76,7 @@
         mContext = context;
         EventBus.getDefault().register(this);
         SystemServicesProxy.getInstance(context).registerTaskStackListener(
-                new TaskStackListener() {
+                new TaskStackChangeListener() {
                     @Override
                     public void onActivityForcedResizable(String packageName, int taskId,
                             int reason) {
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/car/CarStatusBar.java b/packages/SystemUI/src/com/android/systemui/statusbar/car/CarStatusBar.java
index 2ad881f..fed2ebe 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/car/CarStatusBar.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/car/CarStatusBar.java
@@ -36,14 +36,17 @@
 import android.view.WindowManager;
 import android.widget.LinearLayout;
 
+import com.android.keyguard.KeyguardUpdateMonitor;
 import com.android.systemui.BatteryMeterView;
 import com.android.systemui.Dependency;
+import com.android.systemui.Prefs;
 import com.android.systemui.R;
-import com.android.systemui.SwipeHelper;
+import com.android.systemui.classifier.FalsingLog;
+import com.android.systemui.classifier.FalsingManager;
 import com.android.systemui.fragments.FragmentHostManager;
 import com.android.systemui.recents.Recents;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 import com.android.systemui.statusbar.ExpandableNotificationRow;
 import com.android.systemui.statusbar.NotificationData;
 import com.android.systemui.statusbar.StatusBarState;
@@ -52,10 +55,6 @@
 import com.android.systemui.statusbar.phone.StatusBar;
 import com.android.systemui.statusbar.policy.BatteryController;
 import com.android.systemui.statusbar.policy.UserSwitcherController;
-import com.android.keyguard.KeyguardUpdateMonitor;
-import com.android.systemui.classifier.FalsingLog;
-import com.android.systemui.classifier.FalsingManager;
-import com.android.systemui.Prefs;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
@@ -306,10 +305,10 @@
     }
 
     /**
-     * An implementation of TaskStackListener, that listens for changes in the system task
+     * An implementation of TaskStackChangeListener, that listens for changes in the system task
      * stack and notifies the navigation bar.
      */
-    private class TaskStackListenerImpl extends TaskStackListener {
+    private class TaskStackListenerImpl extends TaskStackChangeListener {
         @Override
         public void onTaskStackChanged() {
             SystemServicesProxy ssp = Recents.getSystemServices();
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
index b0ce577..b876286 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java
@@ -66,7 +66,7 @@
 import com.android.systemui.qs.tiles.DndTile;
 import com.android.systemui.qs.tiles.RotationLockTile;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 import com.android.systemui.statusbar.CommandQueue;
 import com.android.systemui.statusbar.CommandQueue.Callbacks;
 import com.android.systemui.statusbar.policy.BluetoothController;
@@ -768,7 +768,7 @@
         mIconController.setIconVisibility(mSlotDataSaver, isDataSaving);
     }
 
-    private final TaskStackListener mTaskListener = new TaskStackListener() {
+    private final TaskStackChangeListener mTaskListener = new TaskStackChangeListener() {
         @Override
         public void onTaskStackChanged() {
             // Listen for changes to stacks and then check which instant apps are foreground.
diff --git a/packages/SystemUI/tests/src/com/android/systemui/keyguard/WorkLockActivityControllerTest.java b/packages/SystemUI/tests/src/com/android/systemui/keyguard/WorkLockActivityControllerTest.java
index 5fb0a3e..b86fc21 100644
--- a/packages/SystemUI/tests/src/com/android/systemui/keyguard/WorkLockActivityControllerTest.java
+++ b/packages/SystemUI/tests/src/com/android/systemui/keyguard/WorkLockActivityControllerTest.java
@@ -44,7 +44,7 @@
 import com.android.systemui.keyguard.WorkLockActivity;
 import com.android.systemui.keyguard.WorkLockActivityController;
 import com.android.systemui.recents.misc.SystemServicesProxy;
-import com.android.systemui.recents.misc.SystemServicesProxy.TaskStackListener;
+import com.android.systemui.recents.misc.TaskStackChangeListener;
 
 import org.junit.Before;
 import org.junit.Test;
@@ -68,7 +68,7 @@
     private @Mock IActivityManager mIActivityManager;
 
     private WorkLockActivityController mController;
-    private TaskStackListener mTaskStackListener;
+    private TaskStackChangeListener mTaskStackListener;
 
     @Before
     public void setUp() throws Exception {
@@ -78,8 +78,8 @@
         doReturn("com.example.test").when(mContext).getPackageName();
 
         // Construct controller. Save the TaskStackListener for injecting events.
-        final ArgumentCaptor<TaskStackListener> listenerCaptor =
-                ArgumentCaptor.forClass(TaskStackListener.class);
+        final ArgumentCaptor<TaskStackChangeListener> listenerCaptor =
+                ArgumentCaptor.forClass(TaskStackChangeListener.class);
         mController =
                 new WorkLockActivityController(mContext, mSystemServicesProxy, mIActivityManager);