Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGViewElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 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.
  */
 
 #include "config.h"
 
 #include "core/svg/SVGViewElement.h"
 
 
 namespace WebCore {
 
 // Animated property definitions
-DEFINE_ANIMATED_BOOLEAN(SVGViewElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
 DEFINE_ANIMATED_RECT(SVGViewElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
 DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGViewElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio)
 
 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGViewElement)
-    REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
     REGISTER_LOCAL_ANIMATED_PROPERTY(viewBox)
     REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio)
     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGElement)
 END_REGISTER_ANIMATED_PROPERTIES
 
 inline SVGViewElement::SVGViewElement(Document& document)
     : SVGElement(SVGNames::viewTag, document)
     , m_zoomAndPan(SVGZoomAndPanMagnify)
     , m_viewTarget(SVGNames::viewTargetAttr)
 {
     ScriptWrappable::init(this);
     registerAnimatedPropertiesForSVGViewElement();
 }
 
 PassRefPtr<SVGViewElement> SVGViewElement::create(Document& document)
 {
     return adoptRef(new SVGViewElement(document));
 }
 
 bool SVGViewElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     if (supportedAttributes.isEmpty()) {
-        SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
         SVGFitToViewBox::addSupportedAttributes(supportedAttributes);
         SVGZoomAndPan::addSupportedAttributes(supportedAttributes);
         supportedAttributes.add(SVGNames::viewTargetAttr);
     }
     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
 }
 
 void SVGViewElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     if (!isSupportedAttribute(name)) {
         SVGElement::parseAttribute(name, value);
         return;
     }
 
     if (name == SVGNames::viewTargetAttr) {
         viewTarget().reset(value);
         return;
     }
 
-    if (SVGExternalResourcesRequired::parseAttribute(name, value))
-        return;
     if (SVGFitToViewBox::parseAttribute(this, name, value))
         return;
     if (SVGZoomAndPan::parseAttribute(this, name, value))
         return;
 
     ASSERT_NOT_REACHED();
 }
 
 }