Remove unnecessary Document.h includes in .cpp files

Source/core/svg/SVGFitToViewBox.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2014 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #include "core/svg/SVGFitToViewBox.h"
 
 #include "core/dom/Attribute.h"
-#include "core/dom/Document.h"
 #include "core/svg/SVGDocumentExtensions.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/SVGParserUtilities.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/text/StringImpl.h"
 
 namespace WebCore {
 
 SVGFitToViewBox::SVGFitToViewBox(SVGElement* element, PropertyMapPolicy propertyMapPolicy)
@@ skipping 26 matching lines @@
     supportedAttributes.add(SVGNames::preserveAspectRatioAttr);
 }
 
 void SVGFitToViewBox::updateViewBox(const FloatRect& rect)
 {
     ASSERT(m_viewBox);
     m_viewBox->baseValue()->setValue(rect);
 }
 
 }