Cast: Simplify code path for RTCP sender report

media/cast/video_sender/video_sender.h

Index: media/cast/video_sender/video_sender.h
diff --git a/media/cast/video_sender/video_sender.h b/media/cast/video_sender/video_sender.h
index 52753946111dfe3005850090291535856fc27e08..c56b5383d9c743c0e77bbcdb6307d5531bb2c26c 100644
--- a/media/cast/video_sender/video_sender.h
+++ b/media/cast/video_sender/video_sender.h
@@ -59,11 +59,6 @@ class VideoSender : public base::NonThreadSafe,
   // Only called from the main cast thread.
   void IncomingRtcpPacket(scoped_ptr<Packet> packet);
 
-  // Store rtp stats computed at the Cast transport sender.
-  void StoreStatistics(const transport::RtcpSenderInfo& sender_info,
-                       base::TimeTicks time_sent,
-                       uint32 rtp_timestamp);
-
  protected:
   // Protected for testability.
   void OnReceivedCastFeedback(const RtcpCastMessage& cast_feedback);
@@ -110,7 +105,7 @@ class VideoSender : public base::NonThreadSafe,
   scoped_refptr<CastEnvironment> cast_environment_;
   transport::CastTransportSender* const transport_sender_;
 
-  RtpSenderStatistics rtp_stats_;
+  RtpTimestampHelper rtp_timestamp_helper_;
   scoped_ptr<LocalRtcpVideoSenderFeedback> rtcp_feedback_;
   scoped_ptr<VideoEncoder> video_encoder_;
   scoped_ptr<Rtcp> rtcp_;