Merge "Forward Activity stop signal to attached windows." into pi-dev

am: d1366f604a

Change-Id: I6862c29dcda7a0a16eeafb60688e3176a34aba8b

core/java/android/view/WindowManagerGlobal.java

@@ -610,6 +610,10 @@ public final class WindowManagerGlobal {
                     ViewRootImpl root = mRoots.get(i);
                     // Client might remove the view by "stopped" event.
                     root.setWindowStopped(stopped);
+                    // Recursively forward stopped state to View's attached
+                    // to this Window rather than the root application token,
+                    // e.g. PopupWindow's.
+                    setStoppedState(root.mAttachInfo.mWindowToken, stopped);
                 }
             }
         }