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

content/renderer/pepper/pepper_platform_video_capture.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/pepper/pepper_platform_video_capture.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
@@ skipping 124 matching lines @@
     case VIDEO_CAPTURE_STATE_ERROR:
       handler_->OnError();
       break;
     default:
       NOTREACHED() << "Unexpected state: " << state << ".";
   }
 }
 
 void PepperPlatformVideoCapture::OnFrameReady(
     const scoped_refptr<media::VideoFrame>& frame,
-    const media::VideoCaptureFormat& format,
     const base::TimeTicks& estimated_capture_time) {
   if (handler_ && !stop_capture_cb_.is_null())
-    handler_->OnFrameReady(frame, format);
+    handler_->OnFrameReady(frame);
 }
 
 PepperMediaDeviceManager* PepperPlatformVideoCapture::GetMediaDeviceManager() {
   RenderFrameImpl* const render_frame =
       RenderFrameImpl::FromRoutingID(render_frame_id_);
   return render_frame ?
       PepperMediaDeviceManager::GetForRenderFrame(render_frame).get() : NULL;
 }
 
 }  // namespace content