Move InvalidationGuard/InstanceUpdateBlocker out of SVGElementInstance

Source/core/svg/SVGFEMergeNodeElement.cpp

Index: Source/core/svg/SVGFEMergeNodeElement.cpp
diff --git a/Source/core/svg/SVGFEMergeNodeElement.cpp b/Source/core/svg/SVGFEMergeNodeElement.cpp
index 4f33793e7c450d9d6247cace5856e837d125bda2..2ab4e02aa8f2f169e73b680590a7ec540f091b64 100644
--- a/Source/core/svg/SVGFEMergeNodeElement.cpp
+++ b/Source/core/svg/SVGFEMergeNodeElement.cpp
@@ -72,7 +72,7 @@ void SVGFEMergeNodeElement::svgAttributeChanged(const QualifiedName& attrName)
         return;
     }
 
-    SVGElementInstance::InvalidationGuard invalidationGuard(this);
+    SVGElement::InstanceInvalidationGuard invalidationGuard(this);
 
     if (attrName == SVGNames::inAttr) {
         invalidateFilterPrimitiveParent(this);