root/chrome/browser/lifetime/

1. application_lifetime.cc
2. application_lifetime.h
3. application_lifetime_android.cc
4. application_lifetime_android.h
5. application_lifetime_aura.cc
6. application_lifetime_gtk.cc
7. application_lifetime_stub.cc
8. application_lifetime_win.cc
9. browser_close_manager.cc
10. browser_close_manager.h
11. browser_close_manager_browsertest.cc