AddChildNotificationsObserver 2382 ui/aura/window_unittest.cc   AddChildNotificationsObserver() : added_count_(0), removed_count_(0) {}
AddChildNotificationsObserver 2404 ui/aura/window_unittest.cc   DISALLOW_COPY_AND_ASSIGN(AddChildNotificationsObserver);
AddChildNotificationsObserver 2411 ui/aura/window_unittest.cc   AddChildNotificationsObserver observer;