Cleanup tests related to controls hiding/fading in/out

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 18 matching lines @@
 
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/events/MouseEvent.h"
 #include "core/frame/Settings.h"
 #include "core/html/HTMLMediaElement.h"
 #include "core/html/MediaController.h"
 #include "core/rendering/RenderTheme.h"
 
 namespace WebCore {
 
+// If you change this value, then also update the corresponding value in
+// LayoutTests/media/media-controls.js.
 static const double timeWithoutMouseMovementBeforeHidingMediaControls = 3;
 
 MediaControls::MediaControls(HTMLMediaElement& mediaElement)
     : HTMLDivElement(mediaElement.document())
     , m_mediaElement(&mediaElement)
     , m_panel(nullptr)
     , m_textDisplayContainer(nullptr)
     , m_overlayPlayButton(nullptr)
     , m_overlayEnclosure(nullptr)
     , m_playButton(nullptr)
@@ skipping 421 matching lines @@
     visitor->trace(m_muteButton);
     visitor->trace(m_volumeSlider);
     visitor->trace(m_toggleClosedCaptionsButton);
     visitor->trace(m_fullScreenButton);
     visitor->trace(m_durationDisplay);
     visitor->trace(m_enclosure);
     HTMLDivElement::trace(visitor);
 }
 
 }