bindings: Makes SVGAnimatedProperty ScriptWrappable.

Source/core/svg/SVGAnimatedLength.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef SVGAnimatedLength_h
 #define SVGAnimatedLength_h
 
 #include "core/svg/SVGLengthTearOff.h"
 #include "core/svg/properties/SVGAnimatedProperty.h"
 
 namespace blink {
 
 class SVGAnimatedLength : public SVGAnimatedProperty<SVGLength> {
+    DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtr<SVGAnimatedLength> create(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue, SVGLengthNegativeValuesMode negativeValuesMode)
     {
         return adoptRef(new SVGAnimatedLength(contextElement, attributeName, initialValue, negativeValuesMode));
     }
 
     void setDefaultValueAsString(const String&);
     void setBaseValueAsString(const String&, SVGParsingError&) override;
 
 protected:
     SVGAnimatedLength(SVGElement* contextElement, const QualifiedName& attributeName, PassRefPtr<SVGLength> initialValue, SVGLengthNegativeValuesMode negativeValuesMode)
         : SVGAnimatedProperty<SVGLength>(contextElement, attributeName, initialValue)
         , m_negativeValuesMode(negativeValuesMode)
     {
     }
 
 private:
     SVGLengthNegativeValuesMode m_negativeValuesMode;
 };
 
 } // namespace blink
 
 #endif // SVGAnimatedLength_h