Add metadata to media::VideoFrame and plumb it through IPC/MediaStream.

content/renderer/media/video_source_handler.cc

 // Copyright (c) 2013 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/video_source_handler.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 35 matching lines @@
                   weak_factory_.GetWeakPtr())),
           track_);
     } else {
       DCHECK(reader_);
       MediaStreamVideoSink::RemoveFromVideoTrack(this, track_);
       weak_factory_.InvalidateWeakPtrs();
     }
     reader_ = reader;
   }
 
-  void OnVideoFrame(
-      const scoped_refptr<media::VideoFrame>& frame,
-      const media::VideoCaptureFormat& format,
-      const base::TimeTicks& estimated_capture_time) {
+  void OnVideoFrame(const scoped_refptr<media::VideoFrame>& frame,
+                    const base::TimeTicks& estimated_capture_time) {
     TRACE_EVENT0("video", "PpFrameReceiver::OnVideoFrame");
     if (reader_) {
       reader_->GotFrame(frame);
     }
   }
 
  private:
   blink::WebMediaStreamTrack track_;
   FrameReaderInterface* reader_;
   base::WeakPtrFactory<PpFrameReceiver> weak_factory_;
@@ skipping 64 matching lines @@
 }
 
 void VideoSourceHandler::DeliverFrameForTesting(
     FrameReaderInterface* reader,
     const scoped_refptr<media::VideoFrame>& frame) {
   SourceInfoMap::iterator it = reader_to_receiver_.find(reader);
   if (it == reader_to_receiver_.end()) {
     return;
   }
   PpFrameReceiver* receiver = it->second->receiver_.get();
-  receiver->OnVideoFrame(frame, media::VideoCaptureFormat(),
-                         base::TimeTicks());
+  receiver->OnVideoFrame(frame, base::TimeTicks());
 }
 
 VideoSourceHandler::SourceInfo::SourceInfo(
     const blink::WebMediaStreamTrack& blink_track,
     FrameReaderInterface* reader)
     : receiver_(new PpFrameReceiver(blink_track)) {
   receiver_->SetReader(reader);
 }
 
 VideoSourceHandler::SourceInfo::~SourceInfo() {
   receiver_->SetReader(NULL);
 }
 
 }  // namespace content