SVG object with same idrefs get conflicted even they are under different shadow root

third_party/WebKit/Source/core/svg/SVGDocumentExtensions.h

 /*
  * Copyright (C) 2006 Apple Inc. All rights reserved.
  * Copyright (C) 2006, 2008 Nikolas Zimmermann <zimmermann@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 33 matching lines @@
     typedef HeapHashSet<Member<Element>> SVGPendingElements;
     explicit SVGDocumentExtensions(Document*);
     ~SVGDocumentExtensions();
 
     void addTimeContainer(SVGSVGElement*);
     void removeTimeContainer(SVGSVGElement*);
 
     // Records the SVG element as having a Web Animation on an SVG attribute that needs applying.
     void addWebAnimationsPendingSVGElement(SVGElement&);
 
-    void addResource(const AtomicString& id, LayoutSVGResourceContainer*);
-    void removeResource(const AtomicString& id);
-    LayoutSVGResourceContainer* resourceById(const AtomicString& id) const;
-
     static void serviceOnAnimationFrame(Document&);
 
     void startAnimations();
     void pauseAnimations();
     void dispatchSVGLoadEventToOutermostSVGElements();
 
     void reportError(const String&);
 
     SVGResourcesCache& resourcesCache() { return m_resourcesCache; }
 
@@ skipping 10 matching lines @@
     static SVGSVGElement* rootElement(const Document&);
     SVGSVGElement* rootElement() const;
 
     DECLARE_TRACE();
 
 private:
     Member<Document> m_document;
     HeapHashSet<Member<SVGSVGElement>> m_timeContainers; // For SVG 1.2 support this will need to be made more general.
     using SVGElementSet = HeapHashSet<Member<SVGElement>>;
     SVGElementSet m_webAnimationsPendingSVGElements;
-    HashMap<AtomicString, LayoutSVGResourceContainer*> m_resources;
-    HeapHashMap<AtomicString, Member<SVGPendingElements>> m_pendingResources; // Resources that are pending.
-    HeapHashMap<AtomicString, Member<SVGPendingElements>> m_pendingResourcesForRemoval; // Resources that are pending and scheduled for removal.
     SVGResourcesCache m_resourcesCache;
     HeapHashSet<Member<SVGSVGElement>> m_relativeLengthSVGRoots; // Root SVG elements with relative length descendants.
     FloatPoint m_translate;
 #if ENABLE(ASSERT)
     bool m_inRelativeLengthSVGRootsInvalidation;
 #endif
 
 public:
-    // This HashMap contains a list of pending resources. Pending resources, are such
-    // which are referenced by any object in the SVG document, but do NOT exist yet.
-    // For instance, dynamically build gradients / patterns / clippers...
-    void addPendingResource(const AtomicString& id, Element*);
-    bool hasPendingResource(const AtomicString& id) const;
-    bool isElementPendingResources(Element*) const;
-    bool isElementPendingResource(Element*, const AtomicString& id) const;
-    void clearHasPendingResourcesIfPossible(Element*);
-    void removeElementFromPendingResources(Element*);
-    SVGPendingElements* removePendingResource(const AtomicString& id);
-
     void serviceAnimations();
-
-    // The following two functions are used for scheduling a pending resource to be removed.
-    void markPendingResourcesForRemoval(const AtomicString&);
-    Element* removeElementFromPendingResourcesForRemoval(const AtomicString&);
-
-private:
-    SVGPendingElements* removePendingResourceForRemoval(const AtomicString&);
 };
 
 } // namespace blink
 
 #endif