Use internal hooks for notifying fullscreen changes to media controls

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

Index: third_party/WebKit/Source/core/html/shadow/MediaControls.cpp
diff --git a/third_party/WebKit/Source/core/html/shadow/MediaControls.cpp b/third_party/WebKit/Source/core/html/shadow/MediaControls.cpp
index 6fcf2642e672bbb9fa145f243b43bcf7045fa993..26e5af48c5b30e7160e1b7057e0376bffb753a0a 100644
--- a/third_party/WebKit/Source/core/html/shadow/MediaControls.cpp
+++ b/third_party/WebKit/Source/core/html/shadow/MediaControls.cpp
@@ -671,6 +671,22 @@ void MediaControls::exitFullscreen() {
   Fullscreen::exitFullscreen(document());
 }
 
+void MediaControls::didEnterFullscreen() {
+  m_fullscreenButton->setIsFullscreen(true);
+  stopHideMediaControlsTimer();
+  startHideMediaControlsTimer();
+  if (m_orientationLockDelegate)
+    m_orientationLockDelegate->didEnterFullscreen();
+}
+
+void MediaControls::didExitFullscreen() {
+  m_fullscreenButton->setIsFullscreen(false);
+  stopHideMediaControlsTimer();
+  startHideMediaControlsTimer();
+  if (m_orientationLockDelegate)
+    m_orientationLockDelegate->didExitFullscreen();
+}
+
 void MediaControls::startedCasting() {
   m_castButton->setIsPlayingRemotely(true);
   m_overlayCastButton->setIsPlayingRemotely(true);
@@ -882,18 +898,6 @@ void MediaControls::onLoadedMetadata() {
   reset();
 }
 
-void MediaControls::onEnteredFullscreen() {
-  m_fullscreenButton->setIsFullscreen(true);
-  stopHideMediaControlsTimer();
-  startHideMediaControlsTimer();
-}
-
-void MediaControls::onExitedFullscreen() {
-  m_fullscreenButton->setIsFullscreen(false);
-  stopHideMediaControlsTimer();
-  startHideMediaControlsTimer();
-}
-
 void MediaControls::notifyElementSizeChanged(ClientRect* newSize) {
   // Note that this code permits a bad frame on resize, since it is
   // run after the relayout / paint happens.  It would be great to improve