[SVG] SVGAnimatedRect migration to new SVG property impl.

Source/core/svg/SVGSymbolElement.cpp

Index: Source/core/svg/SVGSymbolElement.cpp
diff --git a/Source/core/svg/SVGSymbolElement.cpp b/Source/core/svg/SVGSymbolElement.cpp
index aace9b2b2ccefc3287fc7e8a7c475aaca18f8581..f93d5efb1b383b7890991f123e823433ef918732 100644
--- a/Source/core/svg/SVGSymbolElement.cpp
+++ b/Source/core/svg/SVGSymbolElement.cpp
@@ -30,18 +30,19 @@ namespace WebCore {
 
 // Animated property definitions
 DEFINE_ANIMATED_PRESERVEASPECTRATIO(SVGSymbolElement, SVGNames::preserveAspectRatioAttr, PreserveAspectRatio, preserveAspectRatio)
-DEFINE_ANIMATED_RECT(SVGSymbolElement, SVGNames::viewBoxAttr, ViewBox, viewBox)
 
 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGSymbolElement)
-    REGISTER_LOCAL_ANIMATED_PROPERTY(viewBox)
     REGISTER_LOCAL_ANIMATED_PROPERTY(preserveAspectRatio)
     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGElement)
 END_REGISTER_ANIMATED_PROPERTIES
 
 inline SVGSymbolElement::SVGSymbolElement(Document& document)
     : SVGElement(SVGNames::symbolTag, document)
+    , m_viewBox(SVGAnimatedRect::create(this, SVGNames::viewBoxAttr))
 {
     ScriptWrappable::init(this);
+
+    addToPropertyMap(m_viewBox);
     registerAnimatedPropertiesForSVGSymbolElement();
 }