Autoplay muted video when visible and pause when invisible

third_party/WebKit/Source/core/html/HTMLMediaElement.h

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.h b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
index d3d8cb9ff2129ed1bb357ade23ccad1ae4dbd8a0..1b3a7d95135ecac2a6aae4dffedc9f3a5ecdfd55 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.h
@@ -487,8 +487,6 @@ class CORE_EXPORT HTMLMediaElement
 
   void changeNetworkStateFromLoadingToIdle();
 
-  bool isAutoplaying() const { return m_autoplaying; }
-
   WebMediaPlayer::CORSMode corsMode() const;
 
   // Returns the "direction of playback" value as specified in the HTML5 spec.
@@ -639,7 +637,7 @@ class CORE_EXPORT HTMLMediaElement
   bool m_playing : 1;
   bool m_shouldDelayLoadEvent : 1;
   bool m_haveFiredLoadedData : 1;
-  bool m_autoplaying : 1;
+  bool m_canAutoplay : 1;
   bool m_muted : 1;
   bool m_paused : 1;
   bool m_seeking : 1;