Remove SVGLangSpace IDL interface

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 "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/SVGExternalResourcesRequired.h"
 #include "core/svg/SVGFitToViewBox.h"
-#include "core/svg/SVGLangSpace.h"
 #include "core/svg/SVGStyledElement.h"
 
 namespace WebCore {
 
 enum SVGMarkerUnitsType {
     SVGMarkerUnitsUnknown = 0,
     SVGMarkerUnitsUserSpaceOnUse,
     SVGMarkerUnitsStrokeWidth
 };
 
@@ skipping 45 matching lines @@
 
         ExceptionCode ec = 0;
         angle.setValueAsString(value, ec);
         if (!ec)
             return SVGMarkerOrientAngle;
         return SVGMarkerOrientUnknown;
     }
 };
 
 class SVGMarkerElement FINAL : public SVGStyledElement,
-                               public SVGLangSpace,
                                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
     };
 
@@ skipping 59 matching lines @@
 
 inline SVGMarkerElement* toSVGMarkerElement(SVGElement* element)
 {
     ASSERT_WITH_SECURITY_IMPLICATION(!element || element->hasTagName(SVGNames::markerTag));
     return static_cast<SVGMarkerElement*>(element);
 }
 
 }
 
 #endif