Cast: Move retransmission to the transport

media/cast/net/rtcp/rtcp.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This class maintains a bi-directional RTCP connection with a remote
 // peer.
 
 #ifndef MEDIA_CAST_RTCP_RTCP_H_
 #define MEDIA_CAST_RTCP_RTCP_H_
 
@@ skipping 89 matching lines @@
   // If available, returns true and sets the output arguments to the latest
   // lip-sync timestamps gleaned from the sender reports.  While the sender
   // provides reference NTP times relative to its own wall clock, the
   // |reference_time| returned here has been translated to the local
   // CastEnvironment clock.
   bool GetLatestLipSyncTimes(uint32* rtp_timestamp,
                              base::TimeTicks* reference_time) const;
 
   void OnReceivedReceiverLog(const RtcpReceiverLogMessage& receiver_log);
 
+  const base::TimeDelta& rtt() const { return rtt_; }
+
  protected:
   void OnReceivedNtp(uint32 ntp_seconds, uint32 ntp_fraction);
   void OnReceivedLipSyncInfo(uint32 rtp_timestamp,
                              uint32 ntp_seconds,
                              uint32 ntp_fraction);
 
  private:
   class RtcpMessageHandlerImpl;
 
   void OnReceivedDelaySinceLastReport(uint32 last_report,
@@ skipping 47 matching lines @@
   int number_of_rtt_in_avg_;
   base::TimeDelta avg_rtt_;
 
   DISALLOW_COPY_AND_ASSIGN(Rtcp);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_RTCP_RTCP_H_