root/ash/system/

[..]
  1. audio/
  2. bluetooth/
  3. brightness_control_delegate.h
  4. chromeos/
  5. date/
  6. drive/
  7. ime/
  8. keyboard_brightness/
  9. locale/
  10. overview/
  11. status_area_widget.cc
  12. status_area_widget.h
  13. status_area_widget_delegate.cc
  14. status_area_widget_delegate.h
  15. system_notifier.cc
  16. system_notifier.h
  17. tray/
  18. tray_accessibility.cc
  19. tray_accessibility.h
  20. tray_update.cc
  21. tray_update.h
  22. user/
  23. web_notification/
  24. win/
[..]