Revert of Remove AudioTrackRenderer

talk/libjingle.gyp

 #
 # libjingle
 # Copyright 2012 Google Inc.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are met:
 #
 #  1. Redistributions of source code must retain the above copyright notice,
 #     this list of conditions and the following disclaimer.
 #  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 694 matching lines @@
       'target_name': 'libjingle_peerconnection',
       'type': 'static_library',
       'dependencies': [
         'libjingle',
         'libjingle_media',
         'libjingle_p2p',
       ],
       'sources': [
         'app/webrtc/audiotrack.cc',
         'app/webrtc/audiotrack.h',
+        'app/webrtc/audiotrackrenderer.cc',
+        'app/webrtc/audiotrackrenderer.h',
         'app/webrtc/datachannel.cc',
         'app/webrtc/datachannel.h',
         'app/webrtc/datachannelinterface.h',
         'app/webrtc/dtlsidentitystore.cc',
         'app/webrtc/dtlsidentitystore.h',
         'app/webrtc/dtmfsender.cc',
         'app/webrtc/dtmfsender.h',
         'app/webrtc/dtmfsenderinterface.h',
         'app/webrtc/fakeportallocatorfactory.h',
         'app/webrtc/jsep.h',
@@ skipping 63 matching lines @@
         ['OS=="android" and build_with_chromium==0', {
           'sources': [
             'app/webrtc/androidvideocapturer.h',
             'app/webrtc/androidvideocapturer.cc',
            ],
         }],
       ],
     },  # target libjingle_peerconnection
   ],
 }