Remove unused includes from various .cpp files in core/

Source/core/testing/InternalSettings.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 Apple 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.
@@ skipping 10 matching lines @@
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY 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 "InternalSettings.h"
 
 #include "RuntimeEnabledFeatures.h"
-#include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
-#include "core/page/Frame.h"
-#include "core/page/FrameView.h"
 #include "core/page/Page.h"
 #include "core/page/Settings.h"
-#include "core/platform/Language.h"
 #include "core/platform/Supplementable.h"
-#include "core/platform/graphics/TextRun.h"
 #include "core/platform/text/LocaleToScriptMapping.h"
 
 #if ENABLE(INPUT_TYPE_COLOR)
 #include "core/platform/ColorChooser.h"
 #endif
 
 #define InternalSettingsGuardForSettingsReturn(returnValue) \
     if (!settings()) { \
         ec = INVALID_ACCESS_ERR; \
         return returnValue; \
@@ skipping 263 matching lines @@
     settings()->setImagesEnabled(enabled);
 }
 
 void InternalSettings::setDefaultVideoPosterURL(const String& url, ExceptionCode& ec)
 {
     InternalSettingsGuardForSettings();
     settings()->setDefaultVideoPosterURL(url);
 }
 
 }