Added check for leaking AXObjects

Source/core/dom/AXObjectCache.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 27 matching lines @@
 class HTMLSelectElement;
 class LayoutMenuList;
 class Page;
 class Widget;
 
 class CORE_EXPORT AXObjectCache {
     WTF_MAKE_NONCOPYABLE(AXObjectCache); WTF_MAKE_FAST_ALLOCATED(AXObjectCache);
 public:
     static AXObjectCache* create(Document&);
 
-    static AXObject* focusedUIElementForPage(const Page*);
+    static unsigned numberOfLiveAXObjects();
 
     virtual ~AXObjectCache();
 
     enum AXNotification {
         AXActiveDescendantChanged,
         AXAlert,
         AXAriaAttributeChanged,
         AXAutocorrectionOccured,
         AXBlur,
         AXCheckedStateChanged,
@@ skipping 93 matching lines @@
 
 private:
     Document& m_document;
     AXObjectCache* m_cache;
     bool m_isScoped;
 };
 
 }
 
 #endif