Rewriting FFmpegAudioDecoder and eliminating DecoderBase.

content/renderer/media/rtc_video_decoder.cc

 // Copyright (c) 2011 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 "content/renderer/media/rtc_video_decoder.h"
 
 #include <deque>
 
+#include "base/message_loop.h"
 #include "base/task.h"
 #include "media/base/callback.h"
+#include "media/base/demuxer.h"
 #include "media/base/filter_host.h"
 #include "media/base/filters.h"
 #include "media/base/limits.h"
 #include "media/base/video_frame.h"
 #include "media/base/video_util.h"
 #include "third_party/libjingle/source/talk/session/phone/videoframe.h"
 
 using media::CopyUPlane;
 using media::CopyVPlane;
 using media::CopyYPlane;
@@ skipping 185 matching lines @@
         FROM_HERE,
         NewRunnableMethod(this,
                           &RTCVideoDecoder::VideoFrameReady,
                           video_frame));
   } else {
     VideoFrameReady(video_frame);
   }
 
   return true;
 }