Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGSVGElement.h

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
  *
  * 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.
  */
 
 #ifndef SVGSVGElement_h
 #define SVGSVGElement_h
 
 #include "core/svg/SVGAnimatedBoolean.h"
 #include "core/svg/SVGAnimatedLength.h"
 #include "core/svg/SVGAnimatedPreserveAspectRatio.h"
 #include "core/svg/SVGAnimatedRect.h"
-#include "core/svg/SVGExternalResourcesRequired.h"
 #include "core/svg/SVGFitToViewBox.h"
 #include "core/svg/SVGGraphicsElement.h"
 #include "core/svg/SVGZoomAndPan.h"
 #include "wtf/WeakPtr.h"
 
 namespace WebCore {
 
 class SVGAngle;
 class SVGMatrix;
 class SVGTransform;
 class SVGViewSpec;
 class SVGViewElement;
 class SMILTimeContainer;
 
 class SVGSVGElement FINAL : public SVGGraphicsElement,
-                            public SVGExternalResourcesRequired,
                             public SVGFitToViewBox,
                             public SVGZoomAndPan {
 public:
     static PassRefPtr<SVGSVGElement> create(Document&);
 
     using SVGGraphicsElement::ref;
     using SVGGraphicsElement::deref;
 
     virtual bool isValid() const { return SVGTests::isValid(); }
     virtual bool supportsFocus() const OVERRIDE { return hasFocusEventListeners(); }
@@ skipping 103 matching lines @@
         CollectEnclosureList
     };
 
     PassRefPtr<NodeList> collectIntersectionOrEnclosureList(const SVGRect&, SVGElement*, CollectIntersectionOrEnclosure) const;
 
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGSVGElement)
         DECLARE_ANIMATED_LENGTH(X, x)
         DECLARE_ANIMATED_LENGTH(Y, y)
         DECLARE_ANIMATED_LENGTH(Width, width)
         DECLARE_ANIMATED_LENGTH(Height, height)
-        DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
         DECLARE_ANIMATED_RECT(ViewBox, viewBox)
         DECLARE_ANIMATED_PRESERVEASPECTRATIO(PreserveAspectRatio, preserveAspectRatio)
     END_DECLARE_ANIMATED_PROPERTIES
 
     virtual AffineTransform localCoordinateSpaceTransform(SVGElement::CTMScope) const;
 
     bool m_useCurrentView;
     SVGZoomAndPanType m_zoomAndPan;
     RefPtr<SMILTimeContainer> m_timeContainer;
     SVGPoint m_translation;
     RefPtr<SVGViewSpec> m_viewSpec;
     WeakPtrFactory<SVGSVGElement> m_weakFactory;
 };
 
 inline bool isSVGSVGElement(const Node& node)
 {
     return node.isSVGElement() && toSVGElement(node).isSVGSVGElement();
 }
 
 DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION(SVGSVGElement);
 
 } // namespace WebCore
 
 #endif