Cast: Provide more meaningful stats.

chrome/renderer/media/cast_session_delegate.h

Index: chrome/renderer/media/cast_session_delegate.h
diff --git a/chrome/renderer/media/cast_session_delegate.h b/chrome/renderer/media/cast_session_delegate.h
index 008c327b9af83c449daa8f1850579e60c950bc97..f06f55780db27eb92a1cd50fa1253a8b51bea5b4 100644
--- a/chrome/renderer/media/cast_session_delegate.h
+++ b/chrome/renderer/media/cast_session_delegate.h
@@ -30,9 +30,8 @@ class VideoFrame;
 
 namespace cast {
 class CastEnvironment;
-class EncodingEventSubscriber;
 class FrameInput;
-class StatsEventSubscriber;
+class RawEventSubscriberBundle;
 
 namespace transport {
 class CastTransportSender;
@@ -106,11 +105,7 @@ class CastSessionDelegate {
   AudioFrameInputAvailableCallback audio_frame_input_available_callback_;
   VideoFrameInputAvailableCallback video_frame_input_available_callback_;
 
-  scoped_ptr<media::cast::EncodingEventSubscriber> audio_event_subscriber_;
-  scoped_ptr<media::cast::EncodingEventSubscriber> video_event_subscriber_;
-
-  scoped_ptr<media::cast::StatsEventSubscriber> audio_stats_subscriber_;
-  scoped_ptr<media::cast::StatsEventSubscriber> video_stats_subscriber_;
+  scoped_ptr<media::cast::RawEventSubscriberBundle> event_subscribers_;
 
   // Proxy to the IO message loop.
   scoped_refptr<base::MessageLoopProxy> io_message_loop_proxy_;