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diff --git a/Source/WebCore/Modules/indexeddb/IDBAny.h b/Source/WebCore/Modules/indexeddb/IDBAny.h
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+++ b/Source/WebCore/Modules/indexeddb/IDBAny.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 AND ITS CONTRIBUTORS "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 OR ITS 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 IDBAny_h
+#define IDBAny_h
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+
+class DOMStringList;
+class IDBCursor;
+class IDBCursorWithValue;
+class IDBDatabase;
+class IDBFactory;
+class IDBIndex;
+class IDBKey;
+class IDBObjectStore;
+class IDBTransaction;
+class SerializedScriptValue;
+
+class IDBAny : public RefCounted<IDBAny> {
+public:
+    static PassRefPtr<IDBAny> createInvalid();
+    static PassRefPtr<IDBAny> createNull();
+    template<typename T>
+    static PassRefPtr<IDBAny> create(T* idbObject)
+    {
+        RefPtr<IDBAny> any = IDBAny::createInvalid();
+        any->set(idbObject);
+        return any.release();
+    }
+    template<typename T>
+    static PassRefPtr<IDBAny> create(PassRefPtr<T> idbObject)
+    {
+        RefPtr<IDBAny> any = IDBAny::createInvalid();
+        any->set(idbObject);
+        return any.release();
+    }
+    ~IDBAny();
+
+    enum Type {
+        UndefinedType = 0,
+        NullType,
+        DOMStringListType,
+        IDBCursorType,
+        IDBCursorWithValueType,
+        IDBDatabaseType,
+        IDBFactoryType,
+        IDBIndexType,
+        IDBKeyType,
+        IDBObjectStoreType,
+        IDBTransactionType,
+        SerializedScriptValueType
+    };
+
+    Type type() const { return m_type; }
+    // Use type() to figure out which one of these you're allowed to call.
+    PassRefPtr<DOMStringList> domStringList();
+    PassRefPtr<IDBCursor> idbCursor();
+    PassRefPtr<IDBCursorWithValue> idbCursorWithValue();
+    PassRefPtr<IDBDatabase> idbDatabase();
+    PassRefPtr<IDBFactory> idbFactory();
+    PassRefPtr<IDBIndex> idbIndex();
+    PassRefPtr<IDBKey> idbKey();
+    PassRefPtr<IDBObjectStore> idbObjectStore();
+    PassRefPtr<IDBTransaction> idbTransaction();
+    PassRefPtr<SerializedScriptValue> serializedScriptValue();
+
+    // Set can only be called once.
+    void setNull();
+    void set(PassRefPtr<DOMStringList>);
+    void set(PassRefPtr<IDBCursor>);
+    void set(PassRefPtr<IDBCursorWithValue>);
+    void set(PassRefPtr<IDBDatabase>);
+    void set(PassRefPtr<IDBFactory>);
+    void set(PassRefPtr<IDBIndex>);
+    void set(PassRefPtr<IDBKey>);
+    void set(PassRefPtr<IDBObjectStore>);
+    void set(PassRefPtr<IDBTransaction>);
+    void set(PassRefPtr<SerializedScriptValue>);
+
+private:
+    IDBAny();
+
+    Type m_type;
+
+    // Only one of the following should ever be in use at any given time.
+    RefPtr<DOMStringList> m_domStringList;
+    RefPtr<IDBCursor> m_idbCursor;
+    RefPtr<IDBCursorWithValue> m_idbCursorWithValue;
+    RefPtr<IDBDatabase> m_idbDatabase;
+    RefPtr<IDBFactory> m_idbFactory;
+    RefPtr<IDBIndex> m_idbIndex;
+    RefPtr<IDBKey> m_idbKey;
+    RefPtr<IDBObjectStore> m_idbObjectStore;
+    RefPtr<IDBTransaction> m_idbTransaction;
+    RefPtr<SerializedScriptValue> m_serializedScriptValue;
+};
+
+} // namespace WebCore
+
+#endif // ENABLE(INDEXED_DATABASE)
+
+#endif // IDBAny_h