Add runtime feature and property names for unprefixed CSS Transforms

Source/core/svg/SVGElement.cpp

Index: Source/core/svg/SVGElement.cpp
diff --git a/Source/core/svg/SVGElement.cpp b/Source/core/svg/SVGElement.cpp
index e5ce7a6c412f594d6c9bff412dddca7f1bcfe217..1e9e5b0f3676a563c08b6c5956ece3cf10093e87 100644
--- a/Source/core/svg/SVGElement.cpp
+++ b/Source/core/svg/SVGElement.cpp
@@ -58,9 +58,13 @@ using namespace SVGNames;
 void mapAttributeToCSSProperty(HashMap<StringImpl*, CSSPropertyID>* propertyNameToIdMap, const QualifiedName& attrName)
 {
     // FIXME: when CSS supports "transform-origin" the special case for transform_originAttr can be removed.
+    // FIXME: It's not clear the above is strictly true, as -webkit-transform-origin has non-standard behavior.
     CSSPropertyID propertyId = cssPropertyID(attrName.localName());
-    if (!propertyId && attrName == transform_originAttr)
+    if (!propertyId && attrName == transform_originAttr) {
         propertyId = CSSPropertyWebkitTransformOrigin; // cssPropertyID("-webkit-transform-origin")
+    } else if (propertyId == CSSPropertyTransformOrigin) {
+        propertyId = CSSPropertyWebkitTransformOrigin;
+    }
     ASSERT(propertyId > 0);
     propertyNameToIdMap->set(attrName.localName().impl(), propertyId);
 }