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diff --git a/Source/WebCore/storage/IDBIndexBackendImpl.h b/Source/WebCore/storage/IDBIndexBackendImpl.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 IDBIndexBackendImpl_h
+#define IDBIndexBackendImpl_h
+
+#include "IDBIndexBackendInterface.h"
+
+#if ENABLE(INDEXED_DATABASE)
+
+namespace WebCore {
+
+class IDBKey;
+class IDBObjectStoreBackendImpl;
+class IDBSQLiteDatabase;
+class SQLiteDatabase;
+class ScriptExecutionContext;
+
+class IDBIndexBackendImpl : public IDBIndexBackendInterface {
+public:
+    static PassRefPtr<IDBIndexBackendImpl> create(IDBSQLiteDatabase* database, int64_t id, const String& name, const String& storeName, const String& keyPath, bool unique)
+    {
+        return adoptRef(new IDBIndexBackendImpl(database, id, name, storeName, keyPath, unique));
+    }
+    static PassRefPtr<IDBIndexBackendImpl> create(IDBSQLiteDatabase* database, const String& name, const String& storeName, const String& keyPath, bool unique)
+    {
+        return adoptRef(new IDBIndexBackendImpl(database, name, storeName, keyPath, unique));
+    }
+    virtual ~IDBIndexBackendImpl();
+
+    int64_t id() const
+    {
+        ASSERT(m_id != InvalidId);
+        return m_id;
+    }
+    void setId(int64_t id) { m_id = id; }
+
+    bool addingKeyAllowed(IDBKey*);
+
+    // Implements IDBIndexBackendInterface.
+    virtual String name() { return m_name; }
+    virtual String storeName() { return m_storeName; }
+    virtual String keyPath() { return m_keyPath; }
+    virtual bool unique() { return m_unique; }
+
+    virtual void openCursor(PassRefPtr<IDBKeyRange>, unsigned short direction, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&);
+    virtual void openKeyCursor(PassRefPtr<IDBKeyRange>, unsigned short direction, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&);
+    virtual void get(PassRefPtr<IDBKey>, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&);
+    virtual void getKey(PassRefPtr<IDBKey>, PassRefPtr<IDBCallbacks>, IDBTransactionBackendInterface*, ExceptionCode&);
+
+private:
+    IDBIndexBackendImpl(IDBSQLiteDatabase*, int64_t id, const String& name, const String& storeName, const String& keyPath, bool unique);
+    IDBIndexBackendImpl(IDBSQLiteDatabase*, const String& name, const String& storeName, const String& keyPath, bool unique);
+
+    SQLiteDatabase& sqliteDatabase() const;
+
+    static void openCursorInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl>, PassRefPtr<IDBKeyRange>, unsigned short direction, bool objectCursor, PassRefPtr<IDBCallbacks>, PassRefPtr<IDBTransactionBackendInterface>);
+    static void getInternal(ScriptExecutionContext*, PassRefPtr<IDBIndexBackendImpl>, PassRefPtr<IDBKey>, bool getObject, PassRefPtr<IDBCallbacks>);
+
+    static const int64_t InvalidId = 0;
+
+    RefPtr<IDBSQLiteDatabase> m_database;
+
+    int64_t m_id;
+    String m_name;
+    String m_storeName;
+    String m_keyPath;
+    bool m_unique;
+};
+
+} // namespace WebCore
+
+#endif
+
+#endif // IDBIndexBackendImpl_h