Cast: Avoid retransmit if we sent the same packet recently (less than RTT)

chrome/browser/media/cast_transport_host_filter.cc

 // 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.
 
 #include "chrome/browser/media/cast_transport_host_filter.h"
 
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/net/chrome_net_log.h"
 #include "media/cast/transport/cast_transport_sender.h"
 
@@ skipping 161 matching lines @@
     DVLOG(1)
         << "CastTransportHostFilter::OnSendRtcpFromRtpSender "
         << "on non-existing channel";
   }
 }
 
 void CastTransportHostFilter::OnResendPackets(
     int32 channel_id,
     bool is_audio,
     const media::cast::MissingFramesAndPacketsMap& missing_packets,
-    bool cancel_rtx_if_not_in_list) {
+    bool cancel_rtx_if_not_in_list,
+    base::TimeDelta dedupe_window) {
   media::cast::transport::CastTransportSender* sender =
       id_map_.Lookup(channel_id);
   if (sender) {
-    sender->ResendPackets(is_audio, missing_packets, cancel_rtx_if_not_in_list);
+    sender->ResendPackets(
+        is_audio, missing_packets, cancel_rtx_if_not_in_list, dedupe_window);
   } else {
     DVLOG(1)
         << "CastTransportHostFilter::OnResendPackets on non-existing channel";
   }
 }
 
 }  // namespace cast