root/chrome/browser/background/

1. background_application_list_model.cc
2. background_application_list_model.h
3. background_application_list_model_unittest.cc
4. background_contents_service.cc
5. background_contents_service.h
6. background_contents_service_factory.cc
7. background_contents_service_factory.h
8. background_contents_service_unittest.cc
9. background_mode_manager.cc
10. background_mode_manager.h
11. background_mode_manager_aura.cc
12. background_mode_manager_chromeos.cc
13. background_mode_manager_gtk.cc
14. background_mode_manager_unittest.cc
15. background_mode_manager_win.cc