OnLastWindowClosed   21 ash/system/chromeos/session/last_window_closed_logout_reminder.h   virtual void OnLastWindowClosed() OVERRIDE;
OnLastWindowClosed   12 ash/system/chromeos/session/last_window_closed_observer.h   virtual void OnLastWindowClosed() = 0;
OnLastWindowClosed  378 ash/system/tray/system_tray_notifier.cc                     OnLastWindowClosed());