Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGMarkerElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 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,
@@ skipping 11 matching lines @@
 #define SVGMarkerElement_h
 
 #include "bindings/v8/ExceptionState.h"
 #include "core/svg/SVGAnimatedAngle.h"
 #include "core/svg/SVGAnimatedBoolean.h"
 #include "core/svg/SVGAnimatedEnumeration.h"
 #include "core/svg/SVGAnimatedLength.h"
 #include "core/svg/SVGAnimatedPreserveAspectRatio.h"
 #include "core/svg/SVGAnimatedRect.h"
 #include "core/svg/SVGElement.h"
-#include "core/svg/SVGExternalResourcesRequired.h"
 #include "core/svg/SVGFitToViewBox.h"
 
 namespace WebCore {
 
 enum SVGMarkerUnitsType {
     SVGMarkerUnitsUnknown = 0,
     SVGMarkerUnitsUserSpaceOnUse,
     SVGMarkerUnitsStrokeWidth
 };
 
@@ skipping 45 matching lines @@
 
         TrackExceptionState exceptionState;
         angle.setValueAsString(value, exceptionState);
         if (!exceptionState.hadException())
             return SVGMarkerOrientAngle;
         return SVGMarkerOrientUnknown;
     }
 };
 
 class SVGMarkerElement FINAL : public SVGElement,
-                               public SVGExternalResourcesRequired,
                                public SVGFitToViewBox {
 public:
     // Forward declare enumerations in the W3C naming scheme, for IDL generation.
     enum {
         SVG_MARKERUNITS_UNKNOWN = SVGMarkerUnitsUnknown,
         SVG_MARKERUNITS_USERSPACEONUSE = SVGMarkerUnitsUserSpaceOnUse,
         SVG_MARKERUNITS_STROKEWIDTH = SVGMarkerUnitsStrokeWidth
     };
 
     enum {
@@ skipping 41 matching lines @@
 
     mutable SVGSynchronizableAnimatedProperty<SVGMarkerOrientType> m_orientType;
 
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGMarkerElement)
         DECLARE_ANIMATED_LENGTH(RefX, refX)
         DECLARE_ANIMATED_LENGTH(RefY, refY)
         DECLARE_ANIMATED_LENGTH(MarkerWidth, markerWidth)
         DECLARE_ANIMATED_LENGTH(MarkerHeight, markerHeight)
         DECLARE_ANIMATED_ENUMERATION(MarkerUnits, markerUnits, SVGMarkerUnitsType)
         DECLARE_ANIMATED_ANGLE(OrientAngle, orientAngle)
-        DECLARE_ANIMATED_BOOLEAN(ExternalResourcesRequired, externalResourcesRequired)
         DECLARE_ANIMATED_RECT(ViewBox, viewBox)
         DECLARE_ANIMATED_PRESERVEASPECTRATIO(PreserveAspectRatio, preserveAspectRatio)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 DEFINE_NODE_TYPE_CASTS(SVGMarkerElement, hasTagName(SVGNames::markerTag));
 
 }
 
 #endif