tracing: Report ResourceClients and the reason for not deletable for web-caches

third_party/WebKit/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 84 matching lines @@
     void expandSymbolElementsInShadowTree(SVGElement*);
 
     void transferUseAttributesToReplacedElement(SVGElement* from, SVGElement* to) const;
 
     void invalidateDependentShadowTrees();
 
     bool resourceIsStillLoading() const;
     Document* externalDocument() const;
     bool instanceTreeIsLoading(const SVGElement*);
     void notifyFinished(Resource*) override;
+    String debugName() const override { return "SVGUseElement"; }
     TreeScope* referencedScope() const;
     void setDocumentResource(ResourcePtr<DocumentResource>);
 
     RefPtrWillBeMember<SVGAnimatedLength> m_x;
     RefPtrWillBeMember<SVGAnimatedLength> m_y;
     RefPtrWillBeMember<SVGAnimatedLength> m_width;
     RefPtrWillBeMember<SVGAnimatedLength> m_height;
 
     bool m_haveFiredLoadEvent;
     bool m_needsShadowTreeRecreation;
     RefPtrWillBeMember<SVGElement> m_targetElementInstance;
     ResourcePtr<DocumentResource> m_resource;
 };
 
 } // namespace blink
 
 #endif // SVGUseElement_h