diff --git a/core/java/android/app/IActivityManager.aidl b/core/java/android/app/IActivityManager.aidl
index 569c2bd..b192021 100644
--- a/core/java/android/app/IActivityManager.aidl
+++ b/core/java/android/app/IActivityManager.aidl
@@ -121,7 +121,7 @@
     oneway void activityIdle(in IBinder token, in Configuration config,
             in boolean stopProfiling);
     void activityPaused(in IBinder token);
-    oneway void activityStopped(in IBinder token, in Bundle state,
+    void activityStopped(in IBinder token, in Bundle state,
             in PersistableBundle persistentState, in CharSequence description);
     String getCallingPackage(in IBinder token);
     ComponentName getCallingActivity(in IBinder token);
diff --git a/proto/src/wifi.proto b/proto/src/wifi.proto
index bde6030..927e74a 100644
--- a/proto/src/wifi.proto
+++ b/proto/src/wifi.proto
@@ -784,6 +784,12 @@
 
     // Framework changed Sta interface MAC address
     TYPE_MAC_CHANGE = 17;
+
+    // Wifi is turned on
+    TYPE_WIFI_ENABLED = 18;
+
+    // Wifi is turned off
+    TYPE_WIFI_DISABLED = 19;
   }
 
   enum FrameworkDisconnectReason {
diff --git a/services/core/java/com/android/server/am/ActivityMetricsLogger.java b/services/core/java/com/android/server/am/ActivityMetricsLogger.java
index 552a162..5cbd8fd 100644
--- a/services/core/java/com/android/server/am/ActivityMetricsLogger.java
+++ b/services/core/java/com/android/server/am/ActivityMetricsLogger.java
@@ -372,7 +372,7 @@
             return;
         }
 
-        if (launchedActivity != null && launchedActivity.nowVisible) {
+        if (launchedActivity != null && launchedActivity.drawn) {
             // Launched activity is already visible. We cannot measure windows drawn delay.
             reset(true /* abort */, info);
             return;
diff --git a/services/core/java/com/android/server/am/ActivityRecord.java b/services/core/java/com/android/server/am/ActivityRecord.java
index 1d7e00e..97ae377 100644
--- a/services/core/java/com/android/server/am/ActivityRecord.java
+++ b/services/core/java/com/android/server/am/ActivityRecord.java
@@ -308,6 +308,7 @@
                                         // process that it is hidden.
     boolean sleeping;       // have we told the activity to sleep?
     boolean nowVisible;     // is this activity's window visible?
+    boolean drawn;          // is this activity's window drawn?
     boolean mClientVisibilityDeferred;// was the visibility change message to client deferred?
     boolean idle;           // has the activity gone idle?
     boolean hasBeenLaunched;// has this activity ever been launched?
@@ -871,6 +872,7 @@
         inHistory = false;
         visible = false;
         nowVisible = false;
+        drawn = false;
         idle = false;
         hasBeenLaunched = false;
         mStackSupervisor = supervisor;
@@ -1999,6 +2001,7 @@
     @Override
     public void onWindowsDrawn(long timestamp) {
         synchronized (service) {
+            drawn = true;
             final WindowingModeTransitionInfoSnapshot info = mStackSupervisor
                     .getActivityMetricsLogger().notifyWindowsDrawn(getWindowingMode(), timestamp);
             final int windowsDrawnDelayMs = info != null ? info.windowsDrawnDelayMs : INVALID_DELAY;
@@ -2013,6 +2016,13 @@
     }
 
     @Override
+    public void onWindowsNotDrawn(long timestamp) {
+        synchronized (service) {
+            drawn = false;
+        }
+    }
+
+    @Override
     public void onWindowsVisible() {
         synchronized (service) {
             mStackSupervisor.reportActivityVisibleLocked(this);
diff --git a/services/core/java/com/android/server/stats/StatsCompanionService.java b/services/core/java/com/android/server/stats/StatsCompanionService.java
index d683dbd..bf349ef 100644
--- a/services/core/java/com/android/server/stats/StatsCompanionService.java
+++ b/services/core/java/com/android/server/stats/StatsCompanionService.java
@@ -1208,7 +1208,10 @@
     private static final class ThermalEventListener extends IThermalEventListener.Stub {
         @Override public void notifyThrottling(boolean isThrottling, Temperature temp) {
             StatsLog.write(StatsLog.THERMAL_THROTTLING, temp.getType(),
-                    isThrottling ? 1 : 0, temp.getValue());
+                    isThrottling ?
+                            StatsLog.THERMAL_THROTTLING_STATE_CHANGED__STATE__START :
+                            StatsLog.THERMAL_THROTTLING_STATE_CHANGED__STATE__STOP,
+                    temp.getValue());
         }
     }
 }
diff --git a/services/core/java/com/android/server/wm/AppWindowContainerController.java b/services/core/java/com/android/server/wm/AppWindowContainerController.java
index 4f15c5d..2e29931 100644
--- a/services/core/java/com/android/server/wm/AppWindowContainerController.java
+++ b/services/core/java/com/android/server/wm/AppWindowContainerController.java
@@ -18,9 +18,9 @@
 
 import static android.content.pm.ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
-
 import static android.view.WindowManager.TRANSIT_DOCK_TASK_FROM_RECENTS;
 import static android.view.WindowManager.TRANSIT_UNSET;
+
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ADD_REMOVE;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_APP_TRANSITIONS;
 import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_ORIENTATION;
@@ -65,6 +65,7 @@
     private final class H extends Handler {
         public static final int NOTIFY_WINDOWS_DRAWN = 1;
         public static final int NOTIFY_STARTING_WINDOW_DRAWN = 2;
+        public static final int NOTIFY_WINDOWS_NOTDRAWN = 3;
 
         public H(Looper looper) {
             super(looper);
@@ -85,10 +86,18 @@
                     if (mListener == null) {
                         return;
                     }
-                    if (DEBUG_VISIBILITY) Slog.v(TAG_WM, "Reporting drawn in "
+                    if (DEBUG_VISIBILITY) Slog.v(TAG_WM, "Reporting starting window drawn in "
                             + AppWindowContainerController.this.mToken);
                     mListener.onStartingWindowDrawn(msg.getWhen());
                     break;
+                case NOTIFY_WINDOWS_NOTDRAWN:
+                    if (mListener == null) {
+                        return;
+                    }
+                    if (DEBUG_VISIBILITY) Slog.v(TAG_WM, "Reporting undrawn in "
+                            + AppWindowContainerController.this.mToken);
+                    mListener.onWindowsNotDrawn(msg.getWhen());
+                    break;
                 default:
                     break;
             }
@@ -740,6 +749,10 @@
         mHandler.sendMessage(mHandler.obtainMessage(H.NOTIFY_WINDOWS_DRAWN));
     }
 
+    void reportWindowsNotDrawn() {
+        mHandler.sendMessage(mHandler.obtainMessage(H.NOTIFY_WINDOWS_NOTDRAWN));
+    }
+
     void reportWindowsVisible() {
         mHandler.post(mOnWindowsVisible);
     }
diff --git a/services/core/java/com/android/server/wm/AppWindowContainerListener.java b/services/core/java/com/android/server/wm/AppWindowContainerListener.java
index 8a39a74..9d2758a 100644
--- a/services/core/java/com/android/server/wm/AppWindowContainerListener.java
+++ b/services/core/java/com/android/server/wm/AppWindowContainerListener.java
@@ -20,6 +20,8 @@
 public interface AppWindowContainerListener extends WindowContainerListener {
     /** Called when the windows associated app window container are drawn. */
     void onWindowsDrawn(long timestamp);
+    /** Called when the windows associated app window container are no longer drawn. */
+    default void onWindowsNotDrawn(long timestamp) {}
     /** Called when the windows associated app window container are visible. */
     void onWindowsVisible();
     /** Called when the windows associated app window container are no longer visible. */
diff --git a/services/core/java/com/android/server/wm/AppWindowToken.java b/services/core/java/com/android/server/wm/AppWindowToken.java
index fa6079c..bd5d35e 100644
--- a/services/core/java/com/android/server/wm/AppWindowToken.java
+++ b/services/core/java/com/android/server/wm/AppWindowToken.java
@@ -354,6 +354,10 @@
                 if (controller != null) {
                     controller.reportWindowsDrawn();
                 }
+            } else {
+                if (controller != null) {
+                    controller.reportWindowsNotDrawn();
+                }
             }
             reportedDrawn = nowDrawn;
         }