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diff --git a/Source/WebCore/dom/DOMStringList.h b/Source/WebCore/dom/DOMStringList.h
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+/*
+ * Copyright (C) 2010 Google 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 DOMStringList_h
+#define DOMStringList_h
+
+#include "PlatformString.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+// FIXME: Some consumers of this class may benefit from lazily fetching items rather
+//        than creating the list statically as is currently the only option.
+class DOMStringList : public RefCounted<DOMStringList> {
+public:
+    static PassRefPtr<DOMStringList> create()
+    {
+        return adoptRef(new DOMStringList());
+    }
+
+    bool isEmpty() const { return m_strings.isEmpty(); }
+    void clear() { m_strings.clear(); }
+    void append(const String& string) { m_strings.append(string); }
+
+    // Implements the IDL.
+    size_t length() const { return m_strings.size(); }
+    String item(unsigned index) const;
+    bool contains(const String& str) const;
+
+private:
+    DOMStringList() { }
+
+    Vector<String> m_strings;
+};
+
+} // namespace WebCore
+
+#endif // DOMStringList_h
+