Cast: Simplify code path for RTCP sender report

media/cast/transport/cast_transport_sender.h

Index: media/cast/transport/cast_transport_sender.h
diff --git a/media/cast/transport/cast_transport_sender.h b/media/cast/transport/cast_transport_sender.h
index 1d3ac322c6b0de75c07ff3d43bb45397762bbd14..0714995f98c99ec0d65f0cd724e8edec5540b62a 100644
--- a/media/cast/transport/cast_transport_sender.h
+++ b/media/cast/transport/cast_transport_sender.h
@@ -45,10 +45,6 @@ namespace transport {
 typedef base::Callback<void(CastTransportStatus status)>
     CastTransportStatusCallback;
 
-typedef base::Callback<void(const RtcpSenderInfo& sender_info,
-                            base::TimeTicks time_sent,
-                            uint32 rtp_timestamp)> CastTransportRtpStatistics;
-
 typedef base::Callback<void(const std::vector<PacketEvent>&)>
     BulkRawEventsCallback;
 
@@ -88,8 +84,12 @@ class CastTransportSender : public base::NonThreadSafe {
                                      const base::TimeTicks& capture_time) = 0;
 
   // Builds an RTCP packet and sends it to the network.
+  // |ntp_seconds|, |ntp_fraction| and |rtp_timestamp| are used in the
+  // RTCP Sender Report.
   virtual void SendRtcpFromRtpSender(uint32 packet_type_flags,
-                                     const RtcpSenderInfo& sender_info,
+                                     uint32 ntp_seconds,
+                                     uint32 ntp_fraction,
+                                     uint32 rtp_timestamp,
                                      const RtcpDlrrReportBlock& dlrr,
                                      uint32 sending_ssrc,
                                      const std::string& c_name) = 0;
@@ -98,15 +98,6 @@ class CastTransportSender : public base::NonThreadSafe {
   virtual void ResendPackets(
       bool is_audio,
       const MissingFramesAndPacketsMap& missing_packets) = 0;
-
-  // RTP statistics will be returned on a regular interval on the designated
-  // callback.
-  // Must be called after initialization of the corresponding A/V pipeline.
-  virtual void SubscribeAudioRtpStatsCallback(
-      const CastTransportRtpStatistics& callback) = 0;
-
-  virtual void SubscribeVideoRtpStatsCallback(
-      const CastTransportRtpStatistics& callback) = 0;
 };
 
 }  // namespace transport