Detect change on video/viewport intersection when rendered remotely

media/blink/webmediaplayer_impl.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 "media/blink/webmediaplayer_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <limits>
 #include <string>
@@ skipping 1968 matching lines @@
   else
     watch_time_reporter_->OnShown();
 }
 
 bool WebMediaPlayerImpl::IsHidden() const {
   DCHECK(main_task_runner_->BelongsToCurrentThread());
 
   return delegate_ && delegate_->IsHidden();
 }
 
+void WebMediaPlayerImpl::ActivateViewportIntersectionMonitoring(bool activate) {
+  DCHECK(main_task_runner_->BelongsToCurrentThread());
+
+  client_->activateViewportIntersectionMonitoring(activate);
+}
+
 }  // namespace media