Remove unnecessary refreshCastButtonVisibility call

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

 /*
  * Copyright (C) 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 615 matching lines @@
       m_isMouseOverControls = false;
       stopHideMediaControlsTimer();
     }
     return;
   }
 
   if (event->type() == EventTypeNames::mousemove) {
     // When we get a mouse move, show the media controls, and start a timer
     // that will hide the media controls after a 3 seconds without a mouse move.
     makeOpaque();
-    refreshCastButtonVisibility();
     if (shouldHideMediaControls(IgnoreVideoHover))
       startHideMediaControlsTimer();
     return;
   }
 }
 
 void MediaControls::hideMediaControlsTimerFired(TimerBase*) {
   unsigned behaviorFlags =
       m_hideTimerBehaviorFlags | IgnoreFocus | IgnoreVideoHover;
   m_hideTimerBehaviorFlags = IgnoreNone;
@@ skipping 325 matching lines @@
   visitor->trace(m_overflowList);
   visitor->trace(m_castButton);
   visitor->trace(m_overlayCastButton);
   visitor->trace(m_mediaEventListener);
   visitor->trace(m_windowEventListener);
   visitor->trace(m_orientationLockDelegate);
   HTMLDivElement::trace(visitor);
 }
 
 }  // namespace blink