Remove unused includes from core/html .cpp files

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 11 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 
 #include "core/html/shadow/MediaControls.h"
 
 #include "core/dom/ExceptionCodePlaceholder.h"
-#include "core/page/Settings.h"
 
 namespace WebCore {
 
 static const double timeWithoutMouseMovementBeforeHidingFullscreenControls = 3;
 
 MediaControls::MediaControls(Document* document)
     : HTMLDivElement(HTMLNames::divTag, document)
     , m_mediaController(0)
     , m_panel(0)
     , m_textDisplayContainer(0)
@@ skipping 342 matching lines @@
 }
     
 void MediaControls::textTrackPreferencesChanged()
 {
     if (m_textDisplayContainer)
         m_textDisplayContainer->updateSizes(true);
     closedCaptionTracksChanged();
 }
 
 }