Pass a TimeTicks along video capture pipeline to represent capture time

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 233 matching lines @@
           timestamp - first_frame_timestamp_,
           media::BindToCurrentLoop(
               base::Bind(&VideoCaptureImpl::OnClientBufferFinished,
                          weak_factory_.GetWeakPtr(),
                          buffer_id,
                          buffer,
                          std::vector<uint32>())));
 
   for (ClientInfoMap::iterator it = clients_.begin(); it != clients_.end();
        ++it) {
-    it->second.deliver_frame_cb.Run(frame, format);
+    it->second.deliver_frame_cb.Run(frame, format, timestamp);
   }
 }
 
 static void NullReadPixelsCB(const SkBitmap& bitmap) { NOTIMPLEMENTED(); }
 
 void VideoCaptureImpl::OnMailboxBufferReceived(
     int buffer_id,
     const gpu::MailboxHolder& mailbox_holder,
     const media::VideoCaptureFormat& format,
     base::TimeTicks timestamp) {
@@ skipping 17 matching lines @@
                      buffer_id,
                      scoped_refptr<ClientBuffer>())),
       last_frame_format_.frame_size,
       gfx::Rect(last_frame_format_.frame_size),
       last_frame_format_.frame_size,
       timestamp - first_frame_timestamp_,
       base::Bind(&NullReadPixelsCB));
 
   for (ClientInfoMap::iterator it = clients_.begin(); it != clients_.end();
        ++it) {
-    it->second.deliver_frame_cb.Run(frame, format);
+    it->second.deliver_frame_cb.Run(frame, format, timestamp);
   }
 }
 
 void VideoCaptureImpl::OnClientBufferFinished(
     int buffer_id,
     const scoped_refptr<ClientBuffer>& /* ignored_buffer */,
     const std::vector<uint32>& release_sync_points) {
   DCHECK(thread_checker_.CalledOnValidThread());
   Send(new VideoCaptureHostMsg_BufferReady(
       device_id_, buffer_id, release_sync_points));
@@ skipping 132 matching lines @@
   ClientInfoMap::iterator it = clients->find(client_id);
   if (it != clients->end()) {
     it->second.state_update_cb.Run(VIDEO_CAPTURE_STATE_STOPPED);
     clients->erase(it);
     found = true;
   }
   return found;
 }
 
 }  // namespace content