Invalidate the "values cache" when resetting animated value state

third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp

Index: third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp b/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
index 7daff2e083803e10b7fddf5b8a69a0cfc22a746e..52d4580d1a681f82f89d419350639e3c7c31ec5b 100644
--- a/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGAnimationElement.cpp
@@ -221,11 +221,15 @@ void SVGAnimationElement::SvgAttributeChanged(const QualifiedName& attr_name) {
   SVGSMILElement::SvgAttributeChanged(attr_name);
 }
 
+void SVGAnimationElement::InvalidatedValuesCache() {
+  last_values_animation_from_ = String();
+  last_values_animation_to_ = String();
+}
+
 void SVGAnimationElement::AnimationAttributeChanged() {
   // Assumptions may not hold after an attribute change.
   animation_valid_ = false;
-  last_values_animation_from_ = String();
-  last_values_animation_to_ = String();
+  InvalidatedValuesCache();
   SetInactive();
 }