root/chrome/browser/extensions/api/system_display/

1. display_info_provider.cc
2. display_info_provider.h
3. display_info_provider_aura.cc
4. display_info_provider_chromeos.cc
5. display_info_provider_chromeos_unittest.cc
6. display_info_provider_gtk.cc
7. display_info_provider_mac.cc
8. display_info_provider_win.cc
9. system_display_api.cc
10. system_display_api.h
11. system_display_apitest.cc