Pass a TimeTicks along video capture pipeline to represent capture time

content/renderer/media/video_source_handler.cc

Index: content/renderer/media/video_source_handler.cc
diff --git a/content/renderer/media/video_source_handler.cc b/content/renderer/media/video_source_handler.cc
index dabc9cc1326187d68262f19b76977180d8074ff0..5453c2ba33264af0c58a829a34a7c2abe2043903 100644
--- a/content/renderer/media/video_source_handler.cc
+++ b/content/renderer/media/video_source_handler.cc
@@ -54,7 +54,8 @@ class PpFrameReceiver : public MediaStreamVideoSink {
 
   void OnVideoFrame(
       const scoped_refptr<media::VideoFrame>& frame,
-      const media::VideoCaptureFormat& format) {
+      const media::VideoCaptureFormat& format,
+      const base::TimeTicks& start_ticks) {
     if (reader_) {
       reader_->GotFrame(frame);
     }
@@ -138,7 +139,8 @@ void VideoSourceHandler::DeliverFrameForTesting(
     return;
   }
   PpFrameReceiver* receiver = it->second->receiver_.get();
-  receiver->OnVideoFrame(frame, media::VideoCaptureFormat());
+  receiver->OnVideoFrame(frame, media::VideoCaptureFormat(),
+                         base::TimeTicks());
 }
 
 VideoSourceHandler::SourceInfo::SourceInfo(