Cast: Simplify code path for RTCP sender report

media/cast/transport/rtp_sender/rtp_sender.h

Index: media/cast/transport/rtp_sender/rtp_sender.h
diff --git a/media/cast/transport/rtp_sender/rtp_sender.h b/media/cast/transport/rtp_sender/rtp_sender.h
index 3fe018222fbf0c84d0e35a04f9c10dabf8a3ad3e..c027024dd20553b11e82818196740f2f0aa155b7 100644
--- a/media/cast/transport/rtp_sender/rtp_sender.h
+++ b/media/cast/transport/rtp_sender/rtp_sender.h
@@ -58,14 +58,15 @@ class RtpSender {
 
   void ResendPackets(const MissingFramesAndPacketsMap& missing_packets);
 
-  // Set the callback on which RTP statistics data will be returned. Calling
-  // this function would start a timer that would schedule the callback in
-  // a constant interval.
-  void SubscribeRtpStatsCallback(const CastTransportRtpStatistics& callback);
+  size_t send_packet_count() const {
+    return packetizer_ ? packetizer_->send_packet_count() : 0;
+  }
+  size_t send_octet_count() const {
+    return packetizer_ ? packetizer_->send_octet_count() : 0;
+  }
+  uint32 ssrc() const { return config_.ssrc; }
 
  private:
-  void ScheduleNextStatsReport();
-  void RtpStatistics();
   void UpdateSequenceNumber(Packet* packet);
 
   base::TickClock* clock_;  // Not owned by this class.
@@ -73,7 +74,6 @@ class RtpSender {
   scoped_ptr<RtpPacketizer> packetizer_;
   scoped_ptr<PacketStorage> storage_;
   PacedSender* const transport_;
-  CastTransportRtpStatistics stats_callback_;
   scoped_refptr<base::SingleThreadTaskRunner> transport_task_runner_;
 
   // NOTE: Weak pointers must be invalidated before all other member variables.