logout_button_observer.h    9 ash/system/chromeos/session/logout_button_tray.h #include "ash/system/chromeos/session/logout_button_observer.h"
logout_button_observer.h   31 ash/system/tray/system_tray_notifier.h #include "ash/system/chromeos/session/logout_button_observer.h"
logout_button_observer.h   23 chrome/browser/ui/ash/system_tray_delegate_chromeos.cc #include "ash/system/chromeos/session/logout_button_observer.h"