Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/pc/mediastreamobserver.cc

 /*
  *  Copyright 2015 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.
  */
 
-#include "webrtc/api/mediastreamobserver.h"
+#include "webrtc/pc/mediastreamobserver.h"
 
 #include <algorithm>
 
 namespace webrtc {
 
 MediaStreamObserver::MediaStreamObserver(MediaStreamInterface* stream)
     : stream_(stream),
       cached_audio_tracks_(stream->GetAudioTracks()),
       cached_video_tracks_(stream->GetVideoTracks()) {
   stream_->RegisterObserver(this);
@@ skipping 53 matching lines @@
     if (it == cached_video_tracks_.end()) {
       SignalVideoTrackAdded(new_track.get(), stream_);
     }
   }
 
   cached_audio_tracks_ = new_audio_tracks;
   cached_video_tracks_ = new_video_tracks;
 }
 
 }  // namespace webrtc