root/ash/system/chromeos/session/

1. last_window_closed_logout_reminder.cc
2. last_window_closed_logout_reminder.h
3. last_window_closed_observer.h
4. logout_button_observer.h
5. logout_button_tray.cc
6. logout_button_tray.h
7. logout_confirmation_controller.cc
8. logout_confirmation_controller.h
9. logout_confirmation_controller_unittest.cc
10. logout_confirmation_dialog.cc
11. logout_confirmation_dialog.h
12. session_length_limit_observer.h
13. tray_session_length_limit.cc
14. tray_session_length_limit.h
15. tray_session_length_limit_unittest.cc