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diff --git a/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h b/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.h
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+++ b/src/3rdparty/webkit/WebCore/bridge/IdentifierRep.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 COMPUTER, 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 COMPUTER, 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 IdentifierRep_h
+#define IdentifierRep_h
+
+#include <wtf/Assertions.h>
+#include <string.h>
+
+namespace WebCore {
+    
+class IdentifierRep {
+public:
+    static IdentifierRep* get(int);
+    static IdentifierRep* get(const char*);
+
+    static bool isValid(IdentifierRep*);
+    
+    bool isString() const { return m_isString; }
+
+    int number() const { return m_isString ? 0 : m_value.m_number; }
+    const char* string() const { return m_isString ? m_value.m_string : 0; }
+
+private:
+    IdentifierRep(int number) 
+        : m_isString(false)
+    {
+        m_value.m_number = number;
+    }
+    
+    IdentifierRep(const char* name)
+        : m_isString(true)
+    {
+        m_value.m_string = strdup(name);
+    }
+    
+    ~IdentifierRep()
+    {
+        // IdentifierReps should never be deleted.
+        ASSERT_NOT_REACHED();
+    }
+    
+    union {
+        const char* m_string;
+        int m_number;
+    } m_value;
+    bool m_isString;
+};
+
+} // namespace WebCore
+
+#endif // IdentifierRep_h