Implement SetWrapperReferenceTo idl attribute within traceWrappers for svg elements

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

 /*
  * 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 32 matching lines @@
 SVGAnimatedAngle::~SVGAnimatedAngle()
 {
 }
 
 DEFINE_TRACE(SVGAnimatedAngle)
 {
     visitor->trace(m_orientType);
     SVGAnimatedProperty<SVGAngle>::trace(visitor);
 }
 
+DEFINE_TRACE_WRAPPERS(SVGAnimatedAngle)
+{
+    visitor->traceWrappers(contextElement());
+}
+
 bool SVGAnimatedAngle::needsSynchronizeAttribute()
 {
     return m_orientType->needsSynchronizeAttribute()
         || SVGAnimatedProperty<SVGAngle>::needsSynchronizeAttribute();
 }
 
 void SVGAnimatedAngle::synchronizeAttribute()
 {
     // If the current value is not an <angle> we synchronize the value of the
     // wrapped enumeration.
@@ skipping 10 matching lines @@
     m_orientType->setAnimatedValue(currentValue()->orientType());
 }
 
 void SVGAnimatedAngle::animationEnded()
 {
     SVGAnimatedProperty<SVGAngle>::animationEnded();
     m_orientType->animationEnded();
 }
 
 } // namespace blink