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diff --git a/svl/inc/svl/documentlockfile.hxx b/svl/inc/svl/documentlockfile.hxx
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+++ b/svl/inc/svl/documentlockfile.hxx
@@ -0,0 +1,71 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _SVT_DOCUMENTLOCKFILE_HXX
+#define _SVT_DOCUMENTLOCKFILE_HXX
+
+#include <svl/svldllapi.h>
+
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+#include <com/sun/star/io/XTruncate.hpp>
+#include <com/sun/star/lang/XMultiServiceFactory.hpp>
+
+#include <svl/lockfilecommon.hxx>
+
+namespace svt {
+
+class SVL_DLLPUBLIC DocumentLockFile : public LockFileCommon
+{
+    // the workaround for automated testing!
+    static sal_Bool m_bAllowInteraction;
+
+    ::com::sun::star::uno::Reference< ::com::sun::star::io::XInputStream > OpenStream();
+
+    void WriteEntryToStream( ::com::sun::star::uno::Sequence< ::rtl::OUString > aEntry, ::com::sun::star::uno::Reference< ::com::sun::star::io::XOutputStream > xStream );
+
+public:
+    DocumentLockFile( const ::rtl::OUString& aOrigURL, const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >& xFactory = ::com::sun::star::uno::Reference< ::com::sun::star::lang::XMultiServiceFactory >() );
+    ~DocumentLockFile();
+
+    sal_Bool CreateOwnLockFile();
+    ::com::sun::star::uno::Sequence< ::rtl::OUString > GetLockData();
+    sal_Bool OverwriteOwnLockFile();
+    void RemoveFile();
+
+    // the methods allow to control whether UI interaction regarding the locked document file is allowed
+    // this is a workaround for automated tests
+    static void AllowInteraction( sal_Bool bAllow ) { m_bAllowInteraction = bAllow; }
+    static sal_Bool IsInteractionAllowed() { return m_bAllowInteraction; }
+};
+
+}
+
+#endif
+