Report if video capturing meets output protection requirement.

content/public/renderer/media_stream_video_sink.cc

 // Copyright 2013 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.
 
 #include "content/public/renderer/media_stream_video_sink.h"
 
 #include "content/renderer/media/media_stream_video_track.h"
 
 namespace content {
 
 MediaStreamVideoSink::MediaStreamVideoSink() : MediaStreamSink() {}
 
 MediaStreamVideoSink::~MediaStreamVideoSink() {
   // Ensure this sink has disconnected from the track.
   DisconnectFromTrack();
 }
 
 void MediaStreamVideoSink::ConnectToTrack(
     const blink::WebMediaStreamTrack& track,
-    const VideoCaptureDeliverFrameCB& callback) {
+    const VideoCaptureDeliverFrameCB& callback,
+    bool is_sink_secure) {
   DCHECK(connected_track_.isNull());
   connected_track_ = track;
   MediaStreamVideoTrack* const video_track =
       MediaStreamVideoTrack::GetVideoTrack(connected_track_);
   DCHECK(video_track);
   video_track->AddSink(this, callback);
+  video_track->SetVideoSinkSecured(is_sink_secure);
 }
 
 void MediaStreamVideoSink::DisconnectFromTrack() {
   MediaStreamVideoTrack* const video_track =
       MediaStreamVideoTrack::GetVideoTrack(connected_track_);
   if (video_track)
     video_track->RemoveSink(this);
   connected_track_.reset();
 }
 
 }  // namespace content