Preliminary change for new rtc rendering algorithm

content/renderer/media/video_capture_impl.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.
 //
 // Notes about usage of this object by VideoCaptureImplManager.
 //
 // VideoCaptureImplManager access this object by using a Unretained()
 // binding and tasks on the IO thread. It is then important that
 // VideoCaptureImpl never post task to itself. All operations must be
 // synchronous.
@@ skipping 266 matching lines @@
     release_sync_point_storage = new uint32(0);
     frame = media::VideoFrame::WrapNativeTexture(
         pixel_format,
         mailbox_holder,
         base::Bind(&SaveReleaseSyncPoint, release_sync_point_storage),
         coded_size,
         gfx::Rect(coded_size),
         coded_size,
         timestamp - first_frame_timestamp_);
   }
+  frame->metadata()->SetTimeTicks(media::VideoFrameMetadata::REFERENCE_TIME,
+                                  timestamp);
   frame->AddDestructionObserver(
       base::Bind(&VideoCaptureImpl::DidFinishConsumingFrame,
                  frame->metadata(),
                  release_sync_point_storage,
                  media::BindToCurrentLoop(base::Bind(
                      &VideoCaptureImpl::OnClientBufferFinished,
                      weak_factory_.GetWeakPtr(),
                      buffer_id,
                      buffer))));
 
@@ skipping 161 matching lines @@
   double consumer_resource_utilization = -1.0;
   if (!metadata->GetDouble(media::VideoFrameMetadata::RESOURCE_UTILIZATION,
                            &consumer_resource_utilization)) {
     consumer_resource_utilization = -1.0;
   }
 
   callback_to_io_thread.Run(release_sync_point, consumer_resource_utilization);
 }
 
 }  // namespace content