Let SVGElement handle SVGLangSpace attributes parsing

Source/core/svg/SVGStyleElement.cpp

Index: Source/core/svg/SVGStyleElement.cpp
diff --git a/Source/core/svg/SVGStyleElement.cpp b/Source/core/svg/SVGStyleElement.cpp
index 4d87e87ee4c9c71fa77833ba696588d2a48295d0..2a704a43f27e0ee27b6e7f3cb642d964134485ba 100644
--- a/Source/core/svg/SVGStyleElement.cpp
+++ b/Source/core/svg/SVGStyleElement.cpp
@@ -100,10 +100,8 @@ void SVGStyleElement::setTitle(const AtomicString& title)
 bool SVGStyleElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
-    if (supportedAttributes.isEmpty()) {
-        SVGLangSpace::addSupportedAttributes(supportedAttributes);
+    if (supportedAttributes.isEmpty())
         supportedAttributes.add(SVGNames::titleAttr);
-    }
     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
 }
 
@@ -120,9 +118,6 @@ void SVGStyleElement::parseAttribute(const QualifiedName& name, const AtomicStri
         return;
     }
 
-    if (SVGLangSpace::parseAttribute(name, value))
-        return;
-
     ASSERT_NOT_REACHED();
 }