gallery_watch_state_tracker.h 7 chrome/browser/extensions/api/media_galleries_private/gallery_watch_state_tracker.cc #include "chrome/browser/extensions/api/media_galleries_private/gallery_watch_state_tracker.h" gallery_watch_state_tracker.h 13 chrome/browser/extensions/api/media_galleries_private/media_galleries_private_api.h #include "chrome/browser/extensions/api/media_galleries_private/gallery_watch_state_tracker.h"