Merge 158408 "Revert 157959 "Introduce a new reference graph to ..."

Source/core/svg/SVGAnimateElement.cpp

Index: Source/core/svg/SVGAnimateElement.cpp
===================================================================
--- Source/core/svg/SVGAnimateElement.cpp	(revision 158536)
+++ Source/core/svg/SVGAnimateElement.cpp	(working copy)
@@ -32,7 +32,6 @@
 #include "core/svg/SVGAnimatedType.h"
 #include "core/svg/SVGAnimatedTypeAnimator.h"
 #include "core/svg/SVGAnimatorFactory.h"
-#include "core/svg/SVGDocumentExtensions.h"
 
 namespace WebCore {
 
@@ -51,8 +50,6 @@
 
 SVGAnimateElement::~SVGAnimateElement()
 {
-    if (targetElement())
-        clearAnimatedType(targetElement());
 }
 
 bool SVGAnimateElement::hasValidAttributeType()
@@ -214,10 +211,6 @@
     if (shouldApply == ApplyXMLAnimation) {
         // SVG DOM animVal animation code-path.
         m_animatedProperties = animator->findAnimatedPropertiesForAttributeName(targetElement, attributeName);
-        SVGElementAnimatedPropertyList::const_iterator end = m_animatedProperties.end();
-        for (SVGElementAnimatedPropertyList::const_iterator it = m_animatedProperties.begin(); it != end; ++it)
-            document().accessSVGExtensions()->addElementReferencingTarget(this, it->element);
-
         ASSERT(!m_animatedProperties.isEmpty());
 
         ASSERT(propertyTypesAreConsistent(m_animatedPropertyType, m_animatedProperties));