Move InvalidationGuard/InstanceUpdateBlocker out of SVGElementInstance

Source/core/svg/SVGFEDropShadowElement.cpp

 /*
  * Copyright (C) Research In Motion Limited 2011. 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 81 matching lines @@
     reportAttributeParsingError(parseError, name, value);
 }
 
 void SVGFEDropShadowElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (!isSupportedAttribute(attrName)) {
         SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
         return;
     }
 
-    SVGElementInstance::InvalidationGuard invalidationGuard(this);
+    SVGElement::InvalidationGuard invalidationGuard(this);
 
     if (attrName == SVGNames::inAttr
         || attrName == SVGNames::stdDeviationAttr
         || attrName == SVGNames::dxAttr
         || attrName == SVGNames::dyAttr) {
         invalidate();
         return;
     }
 
     ASSERT_NOT_REACHED();
@@ skipping 17 matching lines @@
     FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
     if (!input1)
         return nullptr;
 
     RefPtr<FilterEffect> effect = FEDropShadow::create(filter, stdDeviationX()->currentValue()->value(), stdDeviationY()->currentValue()->value(), m_dx->currentValue()->value(), m_dy->currentValue()->value(), color, opacity);
     effect->inputEffects().append(input1);
     return effect.release();
 }
 
 }