new file, part of fix for #63625. sr=bienvenu

mailnews/db/msgdb/public/nsINewsDatabase.idl

@@ -0,0 +1,37 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ *
+ * The contents of this file are subject to the Netscape Public
+ * License Version 1.1 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS
+ * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ * implied. See the License for the specific language governing
+ * rights and limitations under the License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1999 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ * Seth Spitzer <sspitzer@netscape.com>
+ */
+
+#include "nsISupports.idl"
+
+%{C++
+#include "nsMsgKeySet.h"
+%}
+
+[ptr] native nsMsgKeySetPtr(nsMsgKeySet);
+
+[scriptable, uuid(f700208a-1dd1-11b2-b947-e4e1e4fdf278)]
+
+interface nsINewsDatabase : nsISupports {
+  [noscript] void getReadSet(out nsMsgKeySetPtr pSet);
+  attribute string readSetStr;
+};