SVG: Move/rename reference management to SVGElement

Source/core/svg/SVGDocumentExtensions.cpp

Index: Source/core/svg/SVGDocumentExtensions.cpp
diff --git a/Source/core/svg/SVGDocumentExtensions.cpp b/Source/core/svg/SVGDocumentExtensions.cpp
index eb00973621e340323ec5a8bf7c2c0ed8a8b136b3..ae094f835ebf01b06c057c4b7458de8db0da061a 100644
--- a/Source/core/svg/SVGDocumentExtensions.cpp
+++ b/Source/core/svg/SVGDocumentExtensions.cpp
@@ -308,75 +308,6 @@ Element* SVGDocumentExtensions::removeElementFromPendingResourcesForRemoval(cons
     return element;
 }
 
-SVGElementSet* SVGDocumentExtensions::setOfElementsReferencingTarget(SVGElement* referencedElement) const
-{
-    ASSERT(referencedElement);
-    if (!referencedElement->hasSVGRareData())
-        return 0;
-    return &referencedElement->svgRareData()->referencingElements();
-}
-
-void SVGDocumentExtensions::addElementReferencingTarget(SVGElement* referencingElement, SVGElement* referencedElement)
-{
-    ASSERT(referencingElement);
-    ASSERT(referencedElement);
-    ASSERT(!referencingElement->isStructurallyExternal());
-
-    referencedElement->ensureSVGRareData()->referencingElements().add(referencingElement);
-    referencingElement->ensureSVGRareData()->referencedElements().add(referencedElement);
-}
-
-void SVGDocumentExtensions::removeAllTargetReferencesForElement(SVGElement* referencingElement)
-{
-    if (!referencingElement->hasSVGRareData())
-        return;
-
-    SVGElementSet& referencedElements = referencingElement->svgRareData()->referencedElements();
-    for (SVGElementSet::iterator it = referencedElements.begin(), itEnd = referencedElements.end(); it != itEnd; ++it) {
-        SVGElement* referencedElement = *it;
-        ASSERT(referencedElement->hasSVGRareData());
-        referencedElement->ensureSVGRareData()->referencingElements().remove(referencingElement);
-    }
-    referencedElements.clear();
-}
-
-void SVGDocumentExtensions::rebuildAllElementReferencesForTarget(SVGElement* referencedElement)
-{
-    ASSERT(referencedElement);
-    if (!referencedElement->hasSVGRareData())
-        return;
-
-    const SVGElementSet& referencingElements = referencedElement->svgRareData()->referencingElements();
-
-    // Iterate on a snapshot as |referencingElements| may be altered inside loop.
-    WillBeHeapVector<RawPtrWillBeMember<SVGElement> > referencingElementsSnapShot;
-    copyToVector(referencingElements, referencingElementsSnapShot);
-
-    // Force rebuilding the referencingElement so it knows about this change.
-    for (WillBeHeapVector<RawPtrWillBeMember<SVGElement> >::iterator it = referencingElementsSnapShot.begin(), itEnd = referencingElementsSnapShot.end(); it != itEnd; ++it) {
-        SVGElement* referencingElement = *it;
-
-        // Before rebuilding referencingElement ensure it was not removed from under us.
-        if (referencingElements.contains(referencingElement))
-            referencingElement->svgAttributeChanged(XLinkNames::hrefAttr);
-    }
-}
-
-void SVGDocumentExtensions::removeAllElementReferencesForTarget(SVGElement* referencedElement)
-{
-    ASSERT(referencedElement);
-    if (!referencedElement->hasSVGRareData())
-        return;
-
-    SVGElementSet& referencingElements = referencedElement->svgRareData()->referencingElements();
-    for (SVGElementSet::iterator it = referencingElements.begin(), itEnd = referencingElements.end(); it != itEnd; ++it) {
-        SVGElement* referencingElement = *it;
-        ASSERT(referencedElement->hasSVGRareData());
-        referencingElement->ensureSVGRareData()->referencedElements().remove(referencedElement);
-    }
-    referencingElements.clear();
-}
-
 void SVGDocumentExtensions::addSVGRootWithRelativeLengthDescendents(SVGSVGElement* svgRoot)
 {
     ASSERT(!m_inRelativeLengthSVGRootsInvalidation);