VideoTrackAdapter: Add passing frames monitor, notify MSVCS -> MSVTrack(s)

content/renderer/media/media_stream_video_track.cc

Index: content/renderer/media/media_stream_video_track.cc
diff --git a/content/renderer/media/media_stream_video_track.cc b/content/renderer/media/media_stream_video_track.cc
index 67da1ad79c82737b0f7003e705438ce35aecbf12..9720dce85881d63ab8c2280ca898cef02051945e 100644
--- a/content/renderer/media/media_stream_video_track.cc
+++ b/content/renderer/media/media_stream_video_track.cc
@@ -7,7 +7,6 @@
 #include <utility>
 
 #include "base/bind.h"
-#include "media/base/bind_to_current_loop.h"
 
 namespace content {
 
@@ -240,4 +239,9 @@ void MediaStreamVideoTrack::OnReadyStateChanged(
   }
 }
 
+void MediaStreamVideoTrack::SetMutedState(bool muted_state) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  muted_state_ = muted_state;
+}
+
 }  // namespace content