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

third_party/WebKit/Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 203 matching lines @@
     ~LayoutObject() override;
 
     // Returns the name of the layout object.
     virtual const char* name() const = 0;
 
     // Returns the decorated name used by run-layout-tests. The name contains the name of the object
     // along with extra information about the layout object state (e.g. positioning).
     String decoratedName() const;
 
     // Returns the decorated name along with the debug information from the associated Node object.
-    String debugName() const;
+    String debugName() const final;
 
     LayoutObject* parent() const { return m_parent; }
     bool isDescendantOf(const LayoutObject*) const;
 
     LayoutObject* previousSibling() const { return m_previous; }
     LayoutObject* nextSibling() const { return m_next; }
 
     LayoutObject* slowFirstChild() const
     {
         if (const LayoutObjectChildList* children = virtualChildren())
@@ skipping 1812 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h