Merge 129670 - Refactor SMILTimeContainer to maintain animation information instead of recalculatin…

Source/WebCore/svg/SVGAnimateMotionElement.cpp

Index: Source/WebCore/svg/SVGAnimateMotionElement.cpp
===================================================================
--- Source/WebCore/svg/SVGAnimateMotionElement.cpp	(revision 132107)
+++ Source/WebCore/svg/SVGAnimateMotionElement.cpp	(working copy)
@@ -87,6 +87,12 @@
     return false;
 }
 
+bool SVGAnimateMotionElement::hasValidAttributeName()
+{
+    // AnimateMotion does not use attributeName so it is always valid.
+    return true;
+}
+
 bool SVGAnimateMotionElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());