Let SVGElement handle SVGLangSpace attributes parsing

Source/core/svg/SVGFEImageElement.cpp

Index: Source/core/svg/SVGFEImageElement.cpp
diff --git a/Source/core/svg/SVGFEImageElement.cpp b/Source/core/svg/SVGFEImageElement.cpp
index 3b9af6c59b2a4136322b7e735057d4862413c7c4..5ac3fa4b2b0436c8f7b0a190d8ee485c3f41fb35 100644
--- a/Source/core/svg/SVGFEImageElement.cpp
+++ b/Source/core/svg/SVGFEImageElement.cpp
@@ -114,7 +114,6 @@ bool SVGFEImageElement::isSupportedAttribute(const QualifiedName& attrName)
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     if (supportedAttributes.isEmpty()) {
         SVGURIReference::addSupportedAttributes(supportedAttributes);
-        SVGLangSpace::addSupportedAttributes(supportedAttributes);
         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
         supportedAttributes.add(SVGNames::preserveAspectRatioAttr);
     }
@@ -137,8 +136,6 @@ void SVGFEImageElement::parseAttribute(const QualifiedName& name, const AtomicSt
 
     if (SVGURIReference::parseAttribute(name, value))
         return;
-    if (SVGLangSpace::parseAttribute(name, value))
-        return;
     if (SVGExternalResourcesRequired::parseAttribute(name, value))
         return;
 
@@ -164,7 +161,7 @@ void SVGFEImageElement::svgAttributeChanged(const QualifiedName& attrName)
         return;
     }
 
-    if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName))
+    if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
         return;
 
     ASSERT_NOT_REACHED();