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diff --git a/WebKit/chromium/src/IDBCallbacksProxy.h b/WebKit/chromium/src/IDBCallbacksProxy.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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * 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 IDBCallbacksProxy_h
+#define IDBCallbacksProxy_h
+
+#include "IDBCallbacks.h"
+#include "IDBDatabaseError.h"
+#include "WebIDBCallbacks.h"
+#include "WebIDBDatabaseError.h"
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefPtr.h>
+
+#if ENABLE(INDEXED_DATABASE)
+
+namespace WebCore {
+
+template <typename WebKitClass, typename WebCoreClass, typename WebCoreProxy>
+class IDBCallbacksProxy : public WebKit::WebIDBCallbacks<WebKitClass> {
+public:
+    IDBCallbacksProxy(PassRefPtr<IDBCallbacks<WebCoreClass> > callbacks)
+        : m_callbacks(callbacks) { }
+
+    virtual ~IDBCallbacksProxy() { }
+
+    virtual void onSuccess(WebKitClass* webKitInstance)
+    {
+        RefPtr<WebCoreClass> proxy = WebCoreProxy::create(webKitInstance);
+        m_callbacks->onSuccess(proxy);
+        m_callbacks.clear();
+    }
+
+    virtual void onError(const WebKit::WebIDBDatabaseError& error)
+    {
+        m_callbacks->onError(error);
+        m_callbacks.clear();
+    }
+
+private:
+    PassRefPtr<IDBCallbacks<WebCoreClass> > m_callbacks;
+};
+
+
+} // namespace WebCore
+
+#endif
+
+#endif // IDBCallbacksProxy_h