Cast: Add capabity to send Receiver and Sender log messages over RTCP.

media/cast/rtcp/rtcp.cc

Index: media/cast/rtcp/rtcp.cc
diff --git a/media/cast/rtcp/rtcp.cc b/media/cast/rtcp/rtcp.cc
index e848f2bccbdacf4a42610ae481742c1a3b88f9ca..da87c75188286077be1086366b7abf253c6ec431 100644
--- a/media/cast/rtcp/rtcp.cc
+++ b/media/cast/rtcp/rtcp.cc
@@ -52,7 +52,9 @@ RtcpNackMessage::~RtcpNackMessage() {}
 RtcpRembMessage::RtcpRembMessage() {}
 RtcpRembMessage::~RtcpRembMessage() {}
 
-RtcpReceiverFrameLogMessage::RtcpReceiverFrameLogMessage() {}
+RtcpReceiverFrameLogMessage::RtcpReceiverFrameLogMessage(uint32 timestamp)
+    : rtp_timestamp(timestamp) {}
+
 RtcpReceiverFrameLogMessage::~RtcpReceiverFrameLogMessage() {}
 
 class LocalRtcpReceiverFeedback : public RtcpReceiverFeedback {
@@ -175,7 +177,7 @@ void Rtcp::IncomingRtcpPacket(const uint8* rtcp_buffer, size_t length) {
 }
 
 void Rtcp::SendRtcpFromRtpReceiver(const RtcpCastMessage* cast_message,
-                                   const RtcpReceiverLogMessage* receiver_log) {
+                                   RtcpReceiverLogMessage* receiver_log) {
   uint32 packet_type_flags = 0;
 
   base::TimeTicks now = clock_->NowTicks();
@@ -227,16 +229,15 @@ void Rtcp::SendRtcpFromRtpReceiver(const RtcpCastMessage* cast_message,
                                         receiver_log);
 }
 
-void Rtcp::SendRtcpFromRtpSender(
-    const RtcpSenderLogMessage* sender_log_message) {
+void Rtcp::SendRtcpFromRtpSender(RtcpSenderLogMessage* sender_log_message) {
   uint32 packet_type_flags = RtcpSender::kRtcpSr;
   base::TimeTicks now = clock_->NowTicks();
 
-  RtcpSenderInfo sender_info;
-  RtcpDlrrReportBlock dlrr;
-
-  if (sender_log_message) packet_type_flags |= RtcpSender::kRtcpSenderLog;
+  if (sender_log_message) {
+    packet_type_flags |= RtcpSender::kRtcpSenderLog;
+  }
 
+  RtcpSenderInfo sender_info;
   if (rtp_sender_statistics_) {
     rtp_sender_statistics_->GetStatistics(now, &sender_info);
   } else {
@@ -244,6 +245,7 @@ void Rtcp::SendRtcpFromRtpSender(
   }
   SaveLastSentNtpTime(now, sender_info.ntp_seconds, sender_info.ntp_fraction);
 
+  RtcpDlrrReportBlock dlrr;
   if (!time_last_report_received_.is_null()) {
     packet_type_flags |= RtcpSender::kRtcpDlrr;
     dlrr.last_rr = last_report_received_;