Move InvalidationGuard/InstanceUpdateBlocker out of SVGElementInstance

Source/core/svg/SVGMPathElement.cpp

Index: Source/core/svg/SVGMPathElement.cpp
diff --git a/Source/core/svg/SVGMPathElement.cpp b/Source/core/svg/SVGMPathElement.cpp
index c7d969e12191ac77482418944c6fcdb8ffa8876e..ee2fbb6da071a0eec42cb7a35e673e69d33d4a56 100644
--- a/Source/core/svg/SVGMPathElement.cpp
+++ b/Source/core/svg/SVGMPathElement.cpp
@@ -126,7 +126,7 @@ void SVGMPathElement::svgAttributeChanged(const QualifiedName& attrName)
         return;
     }
 
-    SVGElementInstance::InvalidationGuard invalidationGuard(this);
+    SVGElement::InstanceInvalidationGuard invalidationGuard(this);
 
     if (SVGURIReference::isKnownAttribute(attrName)) {
         buildPendingResource();