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

chrome/renderer/media/cast_rtp_stream.cc

 // Copyright 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 "chrome/renderer/media/cast_rtp_stream.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 254 matching lines @@
       RemoveFromVideoTrack(this, track_);
   }
 
   // This static method is used to forward video frames to |frame_input|.
   static void OnVideoFrame(
       // These parameters are already bound when callback is created.
       const CastRtpStream::ErrorCallback& error_callback,
       const scoped_refptr<media::cast::VideoFrameInput> frame_input,
       // These parameters are passed for each frame.
       const scoped_refptr<media::VideoFrame>& frame,
-      const media::VideoCaptureFormat& format,
       const base::TimeTicks& estimated_capture_time) {
     base::TimeTicks timestamp;
     if (estimated_capture_time.is_null())
       timestamp = base::TimeTicks::Now();
     else
       timestamp = estimated_capture_time;
 
     // Used by chrome/browser/extension/api/cast_streaming/performance_test.cc
     TRACE_EVENT_INSTANT2(
         "cast_perf_test", "MediaStreamVideoSink::OnVideoFrame",
@@ skipping 283 matching lines @@
 void CastRtpStream::DidEncounterError(const std::string& message) {
   DVLOG(1) << "CastRtpStream::DidEncounterError(" << message << ") = "
            << (IsAudio() ? "audio" : "video");
   // Save the WeakPtr first because the error callback might delete this object.
   base::WeakPtr<CastRtpStream> ptr = weak_factory_.GetWeakPtr();
   error_callback_.Run(message);
   content::RenderThread::Get()->GetTaskRunner()->PostTask(
       FROM_HERE,
       base::Bind(&CastRtpStream::Stop, ptr));
 }