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diff --git a/Source/WebCore/storage/IDBDatabaseCallbacksImpl.cpp b/Source/WebCore/storage/IDBDatabaseCallbacksImpl.cpp
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+++ b/Source/WebCore/storage/IDBDatabaseCallbacksImpl.cpp
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+/*
+ * Copyright (C) 2011 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.
+ */
+
+#include "config.h"
+#include "IDBDatabaseCallbacksImpl.h"
+
+#if ENABLE(INDEXED_DATABASE)
+
+#include "IDBDatabase.h"
+
+namespace WebCore {
+
+PassRefPtr<IDBDatabaseCallbacksImpl> IDBDatabaseCallbacksImpl::create(IDBDatabase* database)
+{
+    return adoptRef(new IDBDatabaseCallbacksImpl(database));
+}
+
+IDBDatabaseCallbacksImpl::IDBDatabaseCallbacksImpl(IDBDatabase* database)
+    : m_database(database)
+{
+}
+
+IDBDatabaseCallbacksImpl::~IDBDatabaseCallbacksImpl()
+{
+}
+
+void IDBDatabaseCallbacksImpl::onVersionChange(const String& version)
+{
+    if (m_database)
+        m_database->onVersionChange(version);
+}
+
+void IDBDatabaseCallbacksImpl::unregisterDatabase(IDBDatabase* database)
+{
+    ASSERT(database == m_database);
+    m_database = 0;
+}
+
+} // namespace WebCore
+
+#endif