Move InvalidationGuard/InstanceUpdateBlocker out of SVGElementInstance

Source/core/svg/SVGClipPathElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. 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 56 matching lines @@
     reportAttributeParsingError(parseError, name, value);
 }
 
 void SVGClipPathElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (!isSupportedAttribute(attrName)) {
         SVGGraphicsElement::svgAttributeChanged(attrName);
         return;
     }
 
-    SVGElementInstance::InvalidationGuard invalidationGuard(this);
+    SVGElement::InvalidationGuard invalidationGuard(this);
 
     RenderSVGResourceContainer* renderer = toRenderSVGResourceContainer(this->renderer());
     if (renderer)
         renderer->invalidateCacheAndMarkForLayout();
 }
 
 void SVGClipPathElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
 {
     SVGGraphicsElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
 
     if (changedByParser)
         return;
 
     if (RenderObject* object = renderer())
         object->setNeedsLayout();
 }
 
 RenderObject* SVGClipPathElement::createRenderer(RenderStyle*)
 {
     return new RenderSVGResourceClipper(this);
 }
 
 }