SetLocalFileChangeTracker  723 chrome/browser/sync_file_system/local/local_file_sync_context.cc   backend->SetLocalFileChangeTracker(tracker_ptr->Pass());
SetLocalFileChangeTracker   63 chrome/browser/sync_file_system/local/sync_file_system_backend.h   void SetLocalFileChangeTracker(scoped_ptr<LocalFileChangeTracker> tracker);