Cast: Make receiver use cast_transport

media/cast/net/rtcp/rtcp.cc

Index: media/cast/net/rtcp/rtcp.cc
diff --git a/media/cast/net/rtcp/rtcp.cc b/media/cast/net/rtcp/rtcp.cc
index 4e42ed0274d95d7d60a2b33e112cb43f29c33188..8174303b2e1f6dc609e934df4f6603383a211801 100644
--- a/media/cast/net/rtcp/rtcp.cc
+++ b/media/cast/net/rtcp/rtcp.cc
@@ -53,13 +53,6 @@ std::pair<uint64, uint64> GetReceiverEventKey(
 
 }  // namespace
 
-RtpReceiverStatistics::RtpReceiverStatistics() :
-    fraction_lost(0),
-    cumulative_lost(0),
-    extended_high_sequence_number(0),
-    jitter(0) {
-}
-
 Rtcp::Rtcp(const RtcpCastMessageCallback& cast_callback,
            const RtcpRttCallback& rtt_callback,
            const RtcpLogMessageCallback& log_callback,
@@ -198,19 +191,27 @@ bool Rtcp::DedupeReceiverLog(RtcpReceiverLogMessage* receiver_log) {
   return !receiver_log->empty();
 }
 
+RtcpTimeData Rtcp::ConvertToNTPAndSave(base::TimeTicks now) {
+  RtcpTimeData ret;
+  ret.t = now;
+
+  // Attach our NTP to all RTCP packets; with this information a "smart" sender
+  // can make decisions based on how old the RTCP message is.
+  ConvertTimeTicksToNtp(now, &ret.ntp_seconds, &ret.ntp_fraction);
+  SaveLastSentNtpTime(now, ret.ntp_seconds, ret.ntp_fraction);
+  return ret;
+}
+
 void Rtcp::SendRtcpFromRtpReceiver(
+    RtcpTimeData time_data,
     const RtcpCastMessage* cast_message,
     base::TimeDelta target_delay,
-    const ReceiverRtcpEventSubscriber::RtcpEventMultiMap* rtcp_events,
-    RtpReceiverStatistics* rtp_receiver_statistics) {
-  base::TimeTicks now = clock_->NowTicks();
+    const ReceiverRtcpEventSubscriber::RtcpEvents* rtcp_events,
+    const RtpReceiverStatistics* rtp_receiver_statistics) const {
   RtcpReportBlock report_block;
   RtcpReceiverReferenceTimeReport rrtr;
-
-  // Attach our NTP to all RTCP packets; with this information a "smart" sender
-  // can make decisions based on how old the RTCP message is.
-  ConvertTimeTicksToNtp(now, &rrtr.ntp_seconds, &rrtr.ntp_fraction);
-  SaveLastSentNtpTime(now, rrtr.ntp_seconds, rrtr.ntp_fraction);
+  rrtr.ntp_seconds = time_data.ntp_seconds;
+  rrtr.ntp_fraction = time_data.ntp_fraction;
 
   if (rtp_receiver_statistics) {
     report_block.remote_ssrc = 0;            // Not needed to set send side.
@@ -224,7 +225,7 @@ void Rtcp::SendRtcpFromRtpReceiver(
     if (!time_last_report_received_.is_null()) {
       uint32 delay_seconds = 0;
       uint32 delay_fraction = 0;
-      base::TimeDelta delta = now - time_last_report_received_;
+      base::TimeDelta delta = time_data.t - time_last_report_received_;
       ConvertTimeToFractions(delta.InMicroseconds(), &delay_seconds,
                              &delay_fraction);
       report_block.delay_since_last_sr =
@@ -233,9 +234,10 @@ void Rtcp::SendRtcpFromRtpReceiver(
       report_block.delay_since_last_sr = 0;
     }
   }
+  RtcpBuilder rtcp_builder(local_ssrc_);
   packet_sender_->SendRtcpPacket(
       local_ssrc_,
-      rtcp_builder_.BuildRtcpFromReceiver(
+      rtcp_builder.BuildRtcpFromReceiver(
           rtp_receiver_statistics ? &report_block : NULL,
           &rrtr,
           cast_message,