Reland: Change VideoCaptureDeliverFrameCB's signature

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 34 matching lines @@
                                      weak_factory_.GetWeakPtr())),
                       track_);
     } else {
       RemoveFromVideoTrack(this, track_);
       weak_factory_.InvalidateWeakPtrs();
     }
     reader_ = reader;
   }
 
   void OnVideoFrame(const scoped_refptr<media::VideoFrame>& frame,
-                    const base::TimeTicks& estimated_capture_time) {
+                    base::TimeTicks estimated_capture_time) {
     TRACE_EVENT0("video", "PpFrameReceiver::OnVideoFrame");
     if (reader_)
       reader_->GotFrame(frame);
   }
 
  private:
   const blink::WebMediaStreamTrack track_;
   FrameReaderInterface* reader_;
   base::WeakPtrFactory<PpFrameReceiver> weak_factory_;
 
@@ skipping 66 matching lines @@
     FrameReaderInterface* reader)
     : receiver_(new PpFrameReceiver(blink_track)) {
   receiver_->SetReader(reader);
 }
 
 VideoSourceHandler::SourceInfo::~SourceInfo() {
   receiver_->SetReader(NULL);
 }
 
 }  // namespace content