Define the interface for MediaStreamVideoSource.

content/content_renderer.gypi

 # Copyright (c) 2012 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.
 
 {
   'dependencies': [
     '../gin/gin.gyp:gin',
     '../jingle/jingle.gyp:jingle_glue',
     '../media/media.gyp:media',
     '../net/net.gyp:net',
@@ skipping 589 matching lines @@
         'renderer/media/media_stream_audio_track_sink.h',
         'renderer/media/media_stream_video_track.cc',
         'renderer/media/media_stream_video_track.h',
         'renderer/media/media_stream_center.cc',
         'renderer/media/media_stream_dependency_factory.cc',
         'renderer/media/media_stream_dispatcher.cc',
         'renderer/media/media_stream_impl.cc',
         'renderer/media/media_stream_registry_interface.h',
         'renderer/media/media_stream_source_observer.cc',
         'renderer/media/media_stream_source_observer.h',
+        'renderer/media/media_stream_video_source.cc',
+        'renderer/media/media_stream_video_source.h',
         'renderer/media/native_handle_impl.cc',
         'renderer/media/native_handle_impl.h',
         'renderer/media/peer_connection_audio_sink_owner.cc',
         'renderer/media/peer_connection_audio_sink_owner.h',
         'renderer/media/peer_connection_handler_base.cc',
         'renderer/media/peer_connection_handler_base.h',
         'renderer/media/peer_connection_identity_service.cc',
         'renderer/media/peer_connection_identity_service.h',
         'renderer/media/peer_connection_tracker.cc',
         'renderer/media/peer_connection_tracker.h',
@@ skipping 130 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }