Make PropertyHandle::svgAttribute() return a reference

third_party/WebKit/Source/core/animation/StringKeyframe.cpp

Index: third_party/WebKit/Source/core/animation/StringKeyframe.cpp
diff --git a/third_party/WebKit/Source/core/animation/StringKeyframe.cpp b/third_party/WebKit/Source/core/animation/StringKeyframe.cpp
index e70b0c33ed71801320ad5e839c491994dfa13bf7..e154b8b09b13c95145e1761b579d131f879f4c97 100644
--- a/third_party/WebKit/Source/core/animation/StringKeyframe.cpp
+++ b/third_party/WebKit/Source/core/animation/StringKeyframe.cpp
@@ -100,7 +100,7 @@ PassOwnPtr<Keyframe::PropertySpecificKeyframe> StringKeyframe::createPropertySpe
         return adoptPtr(new CSSPropertySpecificKeyframe(offset(), &easing(), cssPropertyValue(property.cssProperty()), composite()));
 
     ASSERT(property.isSVGAttribute());
-    return adoptPtr(new SVGPropertySpecificKeyframe(offset(), &easing(), svgPropertyValue(*property.svgAttribute()), composite()));
+    return adoptPtr(new SVGPropertySpecificKeyframe(offset(), &easing(), svgPropertyValue(property.svgAttribute()), composite()));
 }
 
 StringKeyframe::CSSPropertySpecificKeyframe::CSSPropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, CSSValue* value, EffectModel::CompositeOperation op)
@@ -541,7 +541,7 @@ PassRefPtr<Interpolation> createSVGInterpolation(SVGPropertyBase* fromValue, SVG
 PassRefPtr<Interpolation> SVGPropertySpecificKeyframe::maybeCreateInterpolation(PropertyHandle propertyHandle, Keyframe::PropertySpecificKeyframe& end, Element* element, const ComputedStyle* baseStyle) const
 {
     ASSERT(element);
-    RefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute = toSVGElement(element)->propertyFromAttribute(*propertyHandle.svgAttribute());
+    RefPtrWillBeRawPtr<SVGAnimatedPropertyBase> attribute = toSVGElement(element)->propertyFromAttribute(propertyHandle.svgAttribute());
     ASSERT(attribute);
 
     RefPtrWillBeRawPtr<SVGPropertyBase> fromValue = attribute->currentValueBase()->cloneForAnimation(m_value);