ScreenForShutdown   68 ash/display/screen_ash.cc   explicit ScreenForShutdown(ScreenAsh* screen_ash)
ScreenForShutdown  121 ash/display/screen_ash.cc   DISALLOW_COPY_AND_ASSIGN(ScreenForShutdown);
ScreenForShutdown  284 ash/display/screen_ash.cc   return new ScreenForShutdown(this);