UpdateShelfItemStatus  199 ash/shelf/shelf_window_watcher.cc     UpdateShelfItemStatus(gained_active, true);
UpdateShelfItemStatus  201 ash/shelf/shelf_window_watcher.cc     UpdateShelfItemStatus(lost_active, false);
UpdateShelfItemStatus   90 ash/shelf/shelf_window_watcher.h   void UpdateShelfItemStatus(aura::Window* window, bool is_active);