Chrome MediaStream VideoTrack implementation.

content/renderer/media/media_stream_impl.cc

 // 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.
 
 #include "content/renderer/media/media_stream_impl.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
@@ skipping 467 matching lines @@
   DCHECK_EQ(devices.size(), webkit_tracks->size());
 
   for (size_t i = 0; i < devices.size(); ++i) {
     blink::WebMediaStreamSource webkit_source;
     InitializeSourceObject(devices[i],
                            blink::WebMediaStreamSource::TypeVideo,
                            constraints,
                            request->frame,
                            &webkit_source);
     (*webkit_tracks)[i].initialize(webkit_source);
-    (*webkit_tracks)[i].setExtraData(new MediaStreamVideoTrack(
-        dependency_factory_));
+    (*webkit_tracks)[i].setExtraData(
+        new MediaStreamVideoTrack(
+            MediaStreamVideoSource::GetVideoSource(webkit_source),
+            dependency_factory_));
     request->StartTrack((*webkit_tracks)[i], constraints);
   }
 }
 
 void MediaStreamImpl::CreateAudioTracks(
     const StreamDeviceInfoArray& devices,
     const blink::WebMediaConstraints& constraints,
     blink::WebVector<blink::WebMediaStreamTrack>* webkit_tracks,
     UserMediaRequestInfo* request) {
   DCHECK_EQ(devices.size(), webkit_tracks->size());
@@ skipping 400 matching lines @@
            sources_.begin();
        it != sources_.end(); ++it) {
     if (source.id() == it->id()) {
       sources_.erase(it);
       return;
     }
   }
 }
 
 }  // namespace content