Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGGradientElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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 SVGGradientElement_h
 #define SVGGradientElement_h
 
 #include "SVGNames.h"
 #include "core/platform/graphics/Gradient.h"
 #include "core/svg/SVGAnimatedBoolean.h"
 #include "core/svg/SVGAnimatedEnumeration.h"
 #include "core/svg/SVGAnimatedTransformList.h"
 #include "core/svg/SVGElement.h"
-#include "core/svg/SVGExternalResourcesRequired.h"
 #include "core/svg/SVGURIReference.h"
 #include "core/svg/SVGUnitTypes.h"
 
 namespace WebCore {
 
 enum SVGSpreadMethodType {
     SVGSpreadMethodUnknown = 0,
     SVGSpreadMethodPad,
     SVGSpreadMethodReflect,
     SVGSpreadMethodRepeat
@@ skipping 26 matching lines @@
             return SVGSpreadMethodPad;
         if (value == "reflect")
             return SVGSpreadMethodReflect;
         if (value == "repeat")
             return SVGSpreadMethodRepeat;
         return SVGSpreadMethodUnknown;
     }
 };
 
 class SVGGradientElement : public SVGElement,
-                           public SVGURIReference,
-                           public SVGExternalResourcesRequired {
+                           public SVGURIReference {
 public:
     enum {
         SVG_SPREADMETHOD_UNKNOWN = SVGSpreadMethodUnknown,
         SVG_SPREADMETHOD_PAD = SVGSpreadMethodReflect,
         SVG_SPREADMETHOD_REFLECT = SVGSpreadMethodRepeat,
         SVG_SPREADMETHOD_REPEAT = SVGSpreadMethodUnknown
     };
 
     Vector<Gradient::ColorStop> buildStops();
 
 protected:
     SVGGradientElement(const QualifiedName&, Document&);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&);
 
 private:
     virtual bool needsPendingResourceHandling() const { return false; }
 
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGGradientElement)
         DECLARE_ANIMATED_ENUMERATION(SpreadMethod, spreadMethod, SVGSpreadMethodType)
         DECLARE_ANIMATED_ENUMERATION(GradientUnits, gradientUnits, SVGUnitTypes::SVGUnitType)
         DECLARE_ANIMATED_TRANSFORM_LIST(GradientTransform, gradientTransform)
         DECLARE_ANIMATED_STRING(Href, href)
-        DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 inline SVGGradientElement* toSVGGradientElement(Node* node)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!node || (node->hasTagName(SVGNames::radialGradientTag) || node->hasTagName(SVGNames::linearGradientTag)));
     return static_cast<SVGGradientElement*>(node);
 }
 
 } // namespace WebCore
 
 #endif