[Cast] Limit frames in flight by duration, and not by number of frames.

media/cast/net/cast_transport_sender_impl_unittest.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 <gtest/gtest.h>
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 92 matching lines @@
         task_runner_,
         &transport_));
     task_runner_->RunTasks();
   }
 
   void InitializeVideo() {
     CastTransportRtpConfig rtp_config;
     rtp_config.ssrc = kVideoSsrc;
     rtp_config.feedback_ssrc = 2;
     rtp_config.rtp_payload_type = 3;
-    rtp_config.stored_frames = 10;
     transport_sender_->InitializeVideo(rtp_config,
                                        RtcpCastMessageCallback(),
                                        RtcpRttCallback());
   }
 
   void InitializeAudio() {
     CastTransportRtpConfig rtp_config;
     rtp_config.ssrc = kAudioSsrc;
     rtp_config.feedback_ssrc = 3;
     rtp_config.rtp_payload_type = 4;
-    rtp_config.stored_frames = 10;
     transport_sender_->InitializeAudio(rtp_config,
                                        RtcpCastMessageCallback(),
                                        RtcpRttCallback());
   }
 
   void LogRawEvents(const std::vector<PacketEvent>& packet_events,
                     const std::vector<FrameEvent>& frame_events) {
     num_times_callback_called_++;
   }
 
@@ skipping 208 matching lines @@
   task_runner_->Sleep(base::TimeDelta::FromMilliseconds(2));
   transport_sender_->OnReceivedCastMessage(kVideoSsrc,
                                            RtcpCastMessageCallback(),
                                            cast_message);
   task_runner_->RunTasks();
   EXPECT_EQ(7, transport_.packets_sent());
 }
 
 }  // namespace cast
 }  // namespace media