Use internal hooks for notifying fullscreen changes to media controls

third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp

Index: third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp
diff --git a/third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp b/third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp
index 070f17b32971c62841984ede8a0b15d1d8086e8d..3e42a66d359e4b3871e0ada928be587c95ce4bb3 100644
--- a/third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp
+++ b/third_party/WebKit/Source/core/html/shadow/MediaControlsMediaEventListener.cpp
@@ -30,13 +30,6 @@ void MediaControlsMediaEventListener::attach() {
   mediaElement().addEventListener(EventTypeNames::error, this, false);
   mediaElement().addEventListener(EventTypeNames::loadedmetadata, this, false);
 
-  // Listen to two different fullscreen events in order to make sure the new and
-  // old APIs are handled.
-  mediaElement().addEventListener(EventTypeNames::webkitfullscreenchange, this,
-                                  false);
-  m_mediaControls->document().addEventListener(EventTypeNames::fullscreenchange,
-                                               this, false);
-
   // TextTracks events.
   TextTrackList* textTracks = mediaElement().textTracks();
   textTracks->addEventListener(EventTypeNames::addtrack, this, false);
@@ -47,9 +40,6 @@ void MediaControlsMediaEventListener::attach() {
 void MediaControlsMediaEventListener::detach() {
   DCHECK(!mediaElement().isConnected());
 
-  m_mediaControls->document().removeEventListener(
-      EventTypeNames::fullscreenchange, this, false);
-
   TextTrackList* textTracks = mediaElement().textTracks();
   textTracks->removeEventListener(EventTypeNames::addtrack, this, false);
   textTracks->removeEventListener(EventTypeNames::change, this, false);
@@ -101,16 +91,6 @@ void MediaControlsMediaEventListener::handleEvent(
     return;
   }
 
-  // Fullscreen handling.
-  if (event->type() == EventTypeNames::fullscreenchange ||
-      event->type() == EventTypeNames::webkitfullscreenchange) {
-    if (mediaElement().isFullscreen())
-      m_mediaControls->onEnteredFullscreen();
-    else
-      m_mediaControls->onExitedFullscreen();
-    return;
-  }
-
   // TextTracks events.
   if (event->type() == EventTypeNames::addtrack ||
       event->type() == EventTypeNames::removetrack) {