Decouple capture timestamp and reference time

media/capture/video/video_capture_device.h

Index: media/capture/video/video_capture_device.h
diff --git a/media/capture/video/video_capture_device.h b/media/capture/video/video_capture_device.h
index ea252424ee5e9eeec2f3d6cbf42965f783d7348f..4cd89b54df0e0d606dc3fdd7128bfb98b29c1ef2 100644
--- a/media/capture/video/video_capture_device.h
+++ b/media/capture/video/video_capture_device.h
@@ -247,8 +247,7 @@ class MEDIA_EXPORT VideoCaptureDevice {
         base::TimeDelta timestamp) = 0;
     virtual void OnIncomingCapturedVideoFrame(
         std::unique_ptr<Buffer> buffer,
-        const scoped_refptr<VideoFrame>& frame,
-        base::TimeTicks reference_time) = 0;
+        const scoped_refptr<VideoFrame>& frame) = 0;
 
     // Attempts to reserve the same Buffer provided in the last call to one of
     // the OnIncomingCapturedXXX() methods. This will fail if the content of the