Move InvalidationGuard/InstanceUpdateBlocker out of SVGElementInstance

Source/core/svg/SVGTextPositioningElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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 75 matching lines @@
     reportAttributeParsingError(parseError, name, value);
 }
 
 void SVGTextPositioningElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (!isSupportedAttribute(attrName)) {
         SVGTextContentElement::svgAttributeChanged(attrName);
         return;
     }
 
-    SVGElementInstance::InvalidationGuard invalidationGuard(this);
+    SVGElement::InvalidationGuard invalidationGuard(this);
 
     bool updateRelativeLengths = attrName == SVGNames::xAttr
                               || attrName == SVGNames::yAttr
                               || attrName == SVGNames::dxAttr
                               || attrName == SVGNames::dyAttr;
 
     if (updateRelativeLengths)
         updateRelativeLengthsInformation();
 
     RenderObject* renderer = this->renderer();
@@ skipping 19 matching lines @@
         return 0;
 
     Node* node = renderer->node();
     ASSERT(node);
     ASSERT(node->isSVGElement());
 
     return isSVGTextPositioningElement(*node) ? toSVGTextPositioningElement(node) : 0;
 }
 
 }