Index: chrome/browser/media/router/media_router.h |
diff --git a/chrome/browser/media/router/media_router.h b/chrome/browser/media/router/media_router.h |
index 0a335654b0f7566eb83ce3132d173a7ea675128f..cbf5404404e5f9e888e622f9984055255be138fb 100644 |
--- a/chrome/browser/media/router/media_router.h |
+++ b/chrome/browser/media/router/media_router.h |
@@ -133,7 +133,9 @@ class MediaRouter : public KeyedService { |
// in undefined behavior. |
// If the MRPM Host is not available, the registration request will fail |
// immediately. |
- virtual void RegisterMediaSinksObserver(MediaSinksObserver* observer) = 0; |
+ // The implementation can reject the request to observe in which case it will |
+ // notify the caller by returning |false|. |
+ virtual bool RegisterMediaSinksObserver(MediaSinksObserver* observer) = 0; |
// Removes a previously added MediaSinksObserver. |observer| will stop |
// receiving further updates. |