Pass a TimeTicks along video capture pipeline to represent capture time

content/renderer/media/video_track_adapter.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_VIDEO_TRACK_ADAPTER_H_
 #define CONTENT_RENDERER_MEDIA_VIDEO_TRACK_ADAPTER_H_
 
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/time/time.h"
 #include "content/renderer/media/media_stream_video_track.h"
 #include "media/base/video_frame.h"
 
 namespace content {
 
 // VideoTrackAdapter is a helper class used by MediaStreamVideoSource used for
 // adapting the video resolution from a source implementation to the resolution
 // a track requires. Different tracks can have different resolution constraints.
 // The constraints can be set as max width and height as well as max and min
 // aspect ratio.
@@ skipping 15 matching lines @@
                 VideoCaptureDeliverFrameCB frame_callback,
                 int max_width, int max_height,
                 double min_aspect_ratio,
                 double max_aspect_ratio);
   void RemoveTrack(const MediaStreamVideoTrack* track);
 
   // Delivers |frame| to all tracks that have registered a callback.
   // Must be called on the IO-thread.
   void DeliverFrameOnIO(
       const scoped_refptr<media::VideoFrame>& frame,
-      const media::VideoCaptureFormat& format);
+      const media::VideoCaptureFormat& format,
+      const base::TimeTicks& estimated_capture_time);
 
   const scoped_refptr<base::MessageLoopProxy>& io_message_loop() {
     DCHECK(thread_checker_.CalledOnValidThread());
     return io_message_loop_;
   }
 
  private:
   virtual ~VideoTrackAdapter();
   friend class base::RefCountedThreadSafe<VideoTrackAdapter>;
 
@@ skipping 21 matching lines @@
   typedef std::vector<scoped_refptr<VideoFrameResolutionAdapter> >
       FrameAdapters;
   FrameAdapters adapters_;
 
   DISALLOW_COPY_AND_ASSIGN(VideoTrackAdapter);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_VIDEO_TRACK_ADAPTER_H_