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diff --git a/src/3rdparty/webkit/JavaScriptCore/parser/ParserArena.h b/src/3rdparty/webkit/JavaScriptCore/parser/ParserArena.h
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+++ b/src/3rdparty/webkit/JavaScriptCore/parser/ParserArena.h
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+/*
+ * Copyright (C) 2009 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
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef ParserArena_h
+#define ParserArena_h
+
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefPtr.h>
+#include <wtf/Vector.h>
+
+namespace JSC {
+
+    class ParserArenaDeletable;
+    class ParserArenaRefCounted;
+
+    class ParserArena {
+    public:
+        void swap(ParserArena& otherArena)
+        {
+            m_deletableObjects.swap(otherArena.m_deletableObjects);
+            m_refCountedObjects.swap(otherArena.m_refCountedObjects);
+        }
+        ~ParserArena();
+
+        void deleteWithArena(ParserArenaDeletable* object) { m_deletableObjects.append(object); }
+        void derefWithArena(PassRefPtr<ParserArenaRefCounted> object) { m_refCountedObjects.append(object); }
+
+        bool contains(ParserArenaRefCounted*) const;
+        ParserArenaRefCounted* last() const;
+        void removeLast();
+
+        bool isEmpty() const { return m_deletableObjects.isEmpty() && m_refCountedObjects.isEmpty(); }
+        void reset();
+
+    private:
+        Vector<ParserArenaDeletable*> m_deletableObjects;
+        Vector<RefPtr<ParserArenaRefCounted> > m_refCountedObjects;
+    };
+
+}
+
+#endif