Let SVGElement handle SVGLangSpace attributes parsing

Source/core/svg/SVGMarkerElement.cpp

Index: Source/core/svg/SVGMarkerElement.cpp
diff --git a/Source/core/svg/SVGMarkerElement.cpp b/Source/core/svg/SVGMarkerElement.cpp
index a101cbef77547230a9309928ffae7bd41e69e39e..43b074ffa2ff1be0da0a36df32c3bdf60a91cae5 100644
--- a/Source/core/svg/SVGMarkerElement.cpp
+++ b/Source/core/svg/SVGMarkerElement.cpp
@@ -111,7 +111,6 @@ bool SVGMarkerElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     if (supportedAttributes.isEmpty()) {
-        SVGLangSpace::addSupportedAttributes(supportedAttributes);
         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
         SVGFitToViewBox::addSupportedAttributes(supportedAttributes);
         supportedAttributes.add(SVGNames::markerUnitsAttr);
@@ -149,8 +148,7 @@ void SVGMarkerElement::parseAttribute(const QualifiedName& name, const AtomicStr
             setOrientTypeBaseValue(orientType);
         if (orientType == SVGMarkerOrientAngle)
             setOrientAngleBaseValue(angle);
-    } else if (SVGLangSpace::parseAttribute(name, value)
-             || SVGExternalResourcesRequired::parseAttribute(name, value)
+    } else if (SVGExternalResourcesRequired::parseAttribute(name, value)
              || SVGFitToViewBox::parseAttribute(this, name, value)) {
     } else
         ASSERT_NOT_REACHED();