Carry over REFERENCE_TIME for the frames using GPU Memory Buffer

media/video/gpu_memory_buffer_video_frame_pool.cc

 // Copyright 2015 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 "media/video/gpu_memory_buffer_video_frame_pool.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 
 #include <algorithm>
@@ skipping 549 matching lines @@
     case PIXEL_FORMAT_UYVY:
       frame = VideoFrame::WrapNativeTexture(
           output_format_, mailbox_holders[VideoFrame::kYPlane],
           release_mailbox_callback, size, gfx::Rect(size),
           video_frame->natural_size(), video_frame->timestamp());
       frame->metadata()->SetBoolean(VideoFrameMetadata::ALLOW_OVERLAY, true);
       break;
     default:
       NOTREACHED();
   }
+
+  base::TimeTicks render_time;
+  if (video_frame->metadata()->GetTimeTicks(VideoFrameMetadata::REFERENCE_TIME,
+                                            &render_time)) {
+    frame->metadata()->SetTimeTicks(VideoFrameMetadata::REFERENCE_TIME,
+                                    render_time);
+  }
+
   frame_ready_cb.Run(frame);
 }
 
 // Destroy all the resources posting one task per FrameResources
 // to the |media_task_runner_|.
 GpuMemoryBufferVideoFramePool::PoolImpl::~PoolImpl() {
   // Delete all the resources on the media thread.
   while (!resources_pool_.empty()) {
     FrameResources* frame_resources = resources_pool_.front();
     resources_pool_.pop_front();
@@ skipping 122 matching lines @@
 }
 
 void GpuMemoryBufferVideoFramePool::MaybeCreateHardwareFrame(
     const scoped_refptr<VideoFrame>& video_frame,
     const FrameReadyCB& frame_ready_cb) {
   DCHECK(video_frame);
   pool_impl_->CreateHardwareFrame(video_frame, frame_ready_cb);
 }
 
 }  // namespace media