Cast: Add JS API to get raw events logs from cast extension.

chrome/renderer/media/cast_rtp_stream.h

Index: chrome/renderer/media/cast_rtp_stream.h
diff --git a/chrome/renderer/media/cast_rtp_stream.h b/chrome/renderer/media/cast_rtp_stream.h
index f3a06c0e317108a6d55607a4da294acf1c845526..1071ff91efe61a16acaff21749740d1c0dcf8b52 100644
--- a/chrome/renderer/media/cast_rtp_stream.h
+++ b/chrome/renderer/media/cast_rtp_stream.h
@@ -117,6 +117,15 @@ class CastRtpStream {
   // Stop encoding.
   void Stop();
 
+  void SetStreamId(const int stream_id);

[Alpha Left Google, 2014/02/24 23:25:51]

Stream ID doesn't belong to CastRtpStream.

[imcheng, 2014/02/25 08:10:18]

See other reply

+
+  // Enables or disables logging for this stream.
+  void ToggleLogging(const bool enable);

[Alpha Left Google, 2014/02/24 23:25:51]

nit: there's no need to make this const.

[imcheng, 2014/02/25 08:10:18]

Done.

+
+  // Get serialized raw events for this stream and invokes |callback|
+  // with the result.
+  void GetRawEvents(base::Callback<void(scoped_ptr<std::string>)> callback);
+
  private:
   // Return true if this track is an audio track. Return false if this
   // track is a video track.
@@ -129,6 +138,7 @@ class CastRtpStream {
   scoped_ptr<CastAudioSink> audio_sink_;
   scoped_ptr<CastVideoSink> video_sink_;
   CastRtpParams params_;
+  int stream_id_;
   base::WeakPtrFactory<CastRtpStream> weak_factory_;
   base::Closure stop_callback_;
   ErrorCallback error_callback_;