SVGLangSpace interface should be removed

Source/core/svg/SVGSVGElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 238 matching lines @@
     else if (name == HTMLNames::onerrorAttr)
         document().setWindowAttributeEventListener(EventTypeNames::error, createAttributeEventListener(document().frame(), name, value));
     else if (name == SVGNames::xAttr)
         setXBaseValue(SVGLength::construct(LengthModeWidth, value, parseError));
     else if (name == SVGNames::yAttr)
         setYBaseValue(SVGLength::construct(LengthModeHeight, value, parseError));
     else if (name == SVGNames::widthAttr)
         setWidthBaseValue(SVGLength::construct(LengthModeWidth, value, parseError, ForbidNegativeLengths));
     else if (name == SVGNames::heightAttr)
         setHeightBaseValue(SVGLength::construct(LengthModeHeight, value, parseError, ForbidNegativeLengths));
-    else if (SVGLangSpace::parseAttribute(name, value)
-               || SVGExternalResourcesRequired::parseAttribute(name, value)
+    else if (SVGExternalResourcesRequired::parseAttribute(name, value)
                || SVGFitToViewBox::parseAttribute(this, name, value)
                || SVGZoomAndPan::parseAttribute(this, name, value)) {
     } else
         SVGGraphicsElement::parseAttribute(name, value);
 
     reportAttributeParsingError(parseError, name, value);
 }
 
 void SVGSVGElement::svgAttributeChanged(const QualifiedName& attrName)
 {
@@ skipping 18 matching lines @@
 
     if (SVGFitToViewBox::isKnownAttribute(attrName)) {
         updateRelativeLengthsOrViewBox = true;
         if (RenderObject* object = renderer())
             object->setNeedsTransformUpdate();
     }
 
     SVGElementInstance::InvalidationGuard invalidationGuard(this);
 
     if (updateRelativeLengthsOrViewBox
-        || SVGLangSpace::isKnownAttribute(attrName)
         || SVGExternalResourcesRequired::isKnownAttribute(attrName)
         || SVGZoomAndPan::isKnownAttribute(attrName)) {
         if (renderer())
             RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer());
         return;
     }
 
     SVGGraphicsElement::svgAttributeChanged(attrName);
 }
 
@@ skipping 462 matching lines @@
             continue;
 
         Element* element = toElement(node);
         if (element->getIdAttribute() == id)
             return element;
     }
     return 0;
 }
 
 }