[Cast] Clean-up: Move max_unacked_frames into CongestionControl.

media/cast/receiver/video_decoder_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 <cstdlib>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/synchronization/condition_variable.h"
 #include "base/synchronization/lock.h"
@@ skipping 22 matching lines @@
   config.max_frame_rate = kFrameRate;
   return config;
 }
 
 }  // namespace
 
 class VideoDecoderTest : public ::testing::TestWithParam<Codec> {
  public:
   VideoDecoderTest()
       : cast_environment_(new StandaloneCastEnvironment()),
-        vp8_encoder_(GetVideoSenderConfigForTest(), 0),
+        vp8_encoder_(GetVideoSenderConfigForTest()),
         cond_(&lock_) {
     vp8_encoder_.Initialize();
   }
 
   virtual ~VideoDecoderTest() {
     // Make sure all threads have stopped before the environment goes away.
     cast_environment_->Shutdown();
   }
 
  protected:
@@ skipping 131 matching lines @@
   }
   WaitForAllVideoToBeDecoded();
 }
 
 INSTANTIATE_TEST_CASE_P(VideoDecoderTestScenarios,
                         VideoDecoderTest,
                         ::testing::Values(CODEC_VIDEO_VP8));
 
 }  // namespace cast
 }  // namespace media