Merge "Only resuming starting dontWaitForPause activity once" into nyc-dev

services/core/java/com/android/server/am/ActivityStack.java

@@ -2258,6 +2258,20 @@ final class ActivityStack {
             }
             if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked();
             return true;
+        } else if (mResumedActivity == next && next.state == ActivityState.RESUMED &&
+                mStackSupervisor.allResumedActivitiesComplete()) {
+            // It is possible for the activity to be resumed when we paused back stacks above if the
+            // next activity doesn't have to wait for pause to complete.
+            // So, nothing else to-do except:
+            // Make sure we have executed any pending transitions, since there
+            // should be nothing left to do at this point.
+            mWindowManager.executeAppTransition();
+            mNoAnimActivities.clear();
+            ActivityOptions.abort(options);
+            if (DEBUG_STATES) Slog.d(TAG_STATES,
+                    "resumeTopActivityLocked: Top activity resumed (dontWaitForPause) " + next);
+            if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked();
+            return true;
         }
 
         // If the most recent activity was noHistory but was only stopped rather