Pass a TimeTicks along video capture pipeline to represent capture time

content/renderer/media/media_stream_video_source.cc

Index: content/renderer/media/media_stream_video_source.cc
diff --git a/content/renderer/media/media_stream_video_source.cc b/content/renderer/media/media_stream_video_source.cc
index 26b0b5a2db222571ef2b224381dfcfe0a0da842d..121553869db199c6cb987a7c102249589f36b129 100644
--- a/content/renderer/media/media_stream_video_source.cc
+++ b/content/renderer/media/media_stream_video_source.cc
@@ -309,7 +309,8 @@ class MediaStreamVideoSource::FrameDeliverer : public VideoFrameDeliverer {
 
   virtual void DeliverFrameOnIO(
       const scoped_refptr<media::VideoFrame>& frame,
-      const media::VideoCaptureFormat& format) OVERRIDE {
+      const media::VideoCaptureFormat& format,
+      const base::TimeTicks& start_ticks) OVERRIDE {
     DCHECK(io_message_loop()->BelongsToCurrentThread());
     TRACE_EVENT0("video", "MediaStreamVideoSource::DeliverFrameOnIO");
     if (max_output_size_.IsEmpty())
@@ -334,7 +335,7 @@ class MediaStreamVideoSource::FrameDeliverer : public VideoFrameDeliverer {
             base::Bind(&ReleaseOriginalFrame, frame));
       }
     }
-    VideoFrameDeliverer::DeliverFrameOnIO(video_frame, format);
+    VideoFrameDeliverer::DeliverFrameOnIO(video_frame, format, start_ticks);
   }
 
  protected: