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

content/renderer/pepper/pepper_platform_video_capture.h

 // 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.
 
 #ifndef CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
 #define CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 24 matching lines @@
   // Detaches the event handler and stops sending notifications to it.
   void DetachEventHandler();
 
   void StartCapture(const media::VideoCaptureParams& params);
   void StopCapture();
 
  private:
   void OnDeviceOpened(int request_id, bool succeeded, const std::string& label);
   void OnStateUpdate(VideoCaptureState state);
   void OnFrameReady(const scoped_refptr<media::VideoFrame>& frame,
-                    const media::VideoCaptureFormat& format,
                     const base::TimeTicks& estimated_capture_time);
 
   // Can return NULL if the RenderFrame referenced by |render_frame_id_| has
   // gone away.
   PepperMediaDeviceManager* GetMediaDeviceManager();
 
   const int render_frame_id_;
   const std::string device_id_;
 
   std::string label_;
@@ skipping 11 matching lines @@
   base::ThreadChecker thread_checker_;
 
   base::WeakPtrFactory<PepperPlatformVideoCapture> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperPlatformVideoCapture);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_PEPPER_PEPPER_PLATFORM_VIDEO_CAPTURE_H_