Remove SVGElementInstance

Source/core/svg/SVGUseElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 13 matching lines @@
 #include "SVGNames.h"
 #include "core/fetch/DocumentResource.h"
 #include "core/svg/SVGAnimatedBoolean.h"
 #include "core/svg/SVGAnimatedLength.h"
 #include "core/svg/SVGGraphicsElement.h"
 #include "core/svg/SVGURIReference.h"
 
 namespace WebCore {
 
 class DocumentResource;
-class SVGElementInstance;
 
 class SVGUseElement FINAL : public SVGGraphicsElement,
                             public SVGURIReference,
                             public DocumentResourceClient {
 public:
     static PassRefPtrWillBeRawPtr<SVGUseElement> create(Document&);
     virtual ~SVGUseElement();
 
-    SVGElementInstance* instanceRoot();
-    SVGElementInstance* animatedInstanceRoot() const;
     void invalidateShadowTree();
-    void invalidateDependentShadowTrees();
 
     RenderObject* rendererClipChild() const;
 
     SVGAnimatedLength* x() const { return m_x.get(); }
     SVGAnimatedLength* y() const { return m_y.get(); }
     SVGAnimatedLength* width() const { return m_width.get(); }
     SVGAnimatedLength* height() const { return m_height.get(); }
 
     virtual void buildPendingResource() OVERRIDE;
 
@@ skipping 16 matching lines @@
 
     void clearResourceReferences();
     void buildShadowAndInstanceTree(SVGElement* target);
 
     void scheduleShadowTreeRecreation();
     virtual bool haveLoadedRequiredResources() OVERRIDE { return !isStructurallyExternal() || m_haveFiredLoadEvent; }
 
     virtual bool selfHasRelativeLengths() const OVERRIDE;
 
     // Instance tree handling
-    void buildInstanceTree(SVGElement* target, SVGElementInstance* targetInstance, bool& foundCycle, bool foundUse);
-    bool hasCycleUseReferencing(SVGUseElement*, SVGElementInstance* targetInstance, SVGElement*& newTarget);
-
-    // Shadow tree handling
-    void buildShadowTree(SVGElement* target, SVGElementInstance* targetInstance, ShadowRoot* shadowTreeRootElement);
-
-    void expandUseElementsInShadowTree(Node* element);
-    void expandSymbolElementsInShadowTree(Node* element);
-
-    // "Tree connector"
-    void associateInstancesWithShadowTreeElements(Node* target, SVGElementInstance* targetInstance);
+    bool buildShadowTree(SVGElement* target, SVGElement* targetInstance, bool foundUse);
+    bool hasCycleUseReferencing(SVGUseElement*, ContainerNode* targetInstance, SVGElement*& newTarget);
+    bool expandUseElementsInShadowTree(SVGElement*);
+    void expandSymbolElementsInShadowTree(SVGElement*);
 
     void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
-    void transferEventListenersToShadowTree(SVGElement* shadowTreeTargetElement);
+
+    void invalidateDependentShadowTrees();
+
+    bool resourceIsStillLoading();
+    Document* externalDocument() const;
+    bool instanceTreeIsLoading(SVGElement*);
+    virtual void notifyFinished(Resource*) OVERRIDE;
+    TreeScope* referencedScope() const;
+    void setDocumentResource(ResourcePtr<DocumentResource>);
+
+    virtual Timer<SVGElement>* svgLoadEventTimer() OVERRIDE { return &m_svgLoadEventTimer; }
 
     RefPtr<SVGAnimatedLength> m_x;
     RefPtr<SVGAnimatedLength> m_y;
     RefPtr<SVGAnimatedLength> m_width;
     RefPtr<SVGAnimatedLength> m_height;
 
-    bool resourceIsStillLoading();
-    Document* externalDocument() const;
-    bool instanceTreeIsLoading(SVGElementInstance*);
-    virtual void notifyFinished(Resource*) OVERRIDE;
-    TreeScope* referencedScope() const;
-    void setDocumentResource(ResourcePtr<DocumentResource>);
-
-    virtual Timer<SVGElement>* svgLoadEventTimer() OVERRIDE { return &m_svgLoadEventTimer; }
-
     bool m_haveFiredLoadEvent;
     bool m_needsShadowTreeRecreation;
-    RefPtrWillBeMember<SVGElementInstance> m_targetElementInstance;
+    RefPtrWillBeMember<SVGElement> m_targetElementInstance;
     ResourcePtr<DocumentResource> m_resource;
     Timer<SVGElement> m_svgLoadEventTimer;
 };
 
 }
 
 #endif