Move webrtc/audio/audio_sink.h to webrtc/ and fix some dependencies.

webrtc/media/base/fakemediaengine.h

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MEDIA_BASE_FAKEMEDIAENGINE_H_
 #define WEBRTC_MEDIA_BASE_FAKEMEDIAENGINE_H_
 
 #include <list>
 #include <map>
 #include <set>
 #include <string>
 #include <vector>
 
-#include "webrtc/audio/audio_sink.h"
+#include "webrtc/audio_sink.h"
 #include "webrtc/base/buffer.h"
 #include "webrtc/base/stringutils.h"
 #include "webrtc/media/base/audiorenderer.h"
 #include "webrtc/media/base/mediaengine.h"
 #include "webrtc/media/base/rtputils.h"
 #include "webrtc/media/base/streamparams.h"
 #include "webrtc/p2p/base/sessiondescription.h"
 
 namespace cricket {
 
@@ skipping 837 matching lines @@
 
  private:
   std::vector<FakeDataMediaChannel*> channels_;
   std::vector<DataCodec> data_codecs_;
   DataChannelType last_channel_type_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_FAKEMEDIAENGINE_H_