SVG: Move/rename reference management to SVGElement

Source/core/svg/animation/SVGSMILElement.cpp

Index: Source/core/svg/animation/SVGSMILElement.cpp
diff --git a/Source/core/svg/animation/SVGSMILElement.cpp b/Source/core/svg/animation/SVGSMILElement.cpp
index 0d1b9b14871eb12270de5ddb1443c972808b5bed..20c1eb8a6add3859fd6edd8efbac792bce0bbc27 100644
--- a/Source/core/svg/animation/SVGSMILElement.cpp
+++ b/Source/core/svg/animation/SVGSMILElement.cpp
@@ -210,7 +210,7 @@ SVGSMILElement::~SVGSMILElement()
 
 void SVGSMILElement::clearResourceAndEventBaseReferences()
 {
-    document().accessSVGExtensions().removeAllTargetReferencesForElement(this);
+    removeAllOutgoingReferences();
 }
 
 void SVGSMILElement::clearConditions()
@@ -257,7 +257,7 @@ void SVGSMILElement::buildPendingResource()
     } else {
         // Register us with the target in the dependencies map. Any change of hrefElement
         // that leads to relayout/repainting now informs us, so we can react to it.
-        document().accessSVGExtensions().addElementReferencingTarget(this, svgTarget);
+        addReferenceTo(svgTarget);
     }
     connectEventBaseConditions();
 }
@@ -640,7 +640,7 @@ void SVGSMILElement::connectEventBaseConditions()
             ASSERT(!condition->eventListener());
             condition->setEventListener(ConditionEventListener::create(this, condition));
             eventBase->addEventListener(AtomicString(condition->name()), condition->eventListener(), false);
-            document().accessSVGExtensions().addElementReferencingTarget(this, eventBase);
+            addReferenceTo(eventBase);
         }
     }
 }