Add an API to report debugName in GraphicsLayer

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * 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
@@ skipping 571 matching lines @@
     virtual InsertionNotificationRequest insertedInto(ContainerNode* insertionPoint);
     virtual void didNotifySubtreeInsertions(ContainerNode*) { }
 
     // Notifies the node that it is no longer part of the tree.
     //
     // This is a dual of insertedInto(), and is similar to the DOMNodeRemovedFromDocument DOM event, but does not require the overhead of event
     // dispatching, and is called _after_ the node is removed from the tree.
     //
     virtual void removedFrom(ContainerNode* insertionPoint);
 
-#ifndef NDEBUG
     String debugName() const;
 
+#ifndef NDEBUG
     virtual void formatForDebugger(char* buffer, unsigned length) const;
 
     void showNode(const char* prefix = "") const;
     void showTreeForThis() const;
     void showNodePathForThis() const;
     void showTreeAndMark(const Node* markedNode1, const char* markedLabel1, const Node* markedNode2 = 0, const char* markedLabel2 = 0) const;
     void showTreeForThisAcrossFrame() const;
 #endif
 
     void invalidateNodeListCachesInAncestors(const QualifiedName* attrName = 0, Element* attributeOwnerElement = 0);
@@ skipping 325 matching lines @@
 
 } //namespace
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::Node*);
 void showNodePath(const WebCore::Node*);
 #endif
 
 #endif