Don't change the media controls visibility in MediaControls::reset()

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 243 matching lines @@
     m_timeline->setDuration(duration);
     m_timeline->setPosition(mediaElement().currentTime());
 
     updateVolume();
 
     refreshClosedCaptionsButtonVisibility();
 
     m_fullScreenButton->setIsWanted(shouldShowFullscreenButton(mediaElement()));
 
     refreshCastButtonVisibilityWithoutUpdate();
-    makeOpaque();
 
     // Set the panel width here, and force a layout, before the controls update.
     // This would be harmless for the !useNewUi case too, but it causes
     // compositing/geometry/video-fixed-scrolling.html to fail with two extra
     // 0 height nodes in the render tree.
     if (useNewUi)
         m_panelWidth = m_panel->clientWidth();
 }
 
 LayoutObject* MediaControls::layoutObjectForTextTrackLayout()
@@ skipping 462 matching lines @@
     visitor->trace(m_toggleClosedCaptionsButton);
     visitor->trace(m_fullScreenButton);
     visitor->trace(m_durationDisplay);
     visitor->trace(m_enclosure);
     visitor->trace(m_castButton);
     visitor->trace(m_overlayCastButton);
     HTMLDivElement::trace(visitor);
 }
 
 }