[oilpan] Add checks to new operator

Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013 Apple 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
  * License as published by the Free Software Foundation; either
@@ skipping 138 matching lines @@
 
 #if COMPILER(MSVC)
 #pragma warning(pop)
 #endif
 
 class UniqueElementData : public ElementData {
 public:
     static PassRefPtr<UniqueElementData> create();
     PassRefPtr<ShareableElementData> makeShareableCopy() const;
 
+    OVERRIDE_NEW(UniqueElementData)
+
     // These functions do no error/duplicate checking.
     void addAttribute(const QualifiedName&, const AtomicString&);
     void removeAttribute(size_t index);
 
     Attribute* attributeItem(unsigned index);
     Attribute* getAttributeItem(const QualifiedName&);
 
     UniqueElementData();
     explicit UniqueElementData(const ShareableElementData&);
     explicit UniqueElementData(const UniqueElementData&);
@@ skipping 841 matching lines @@
 
 inline const Attribute* ElementData::attributeItem(unsigned index) const
 {
     RELEASE_ASSERT(index < length());
     return attributeBase() + index;
 }
 
 } // namespace
 
 #endif