slight change to meet new nsRepository API

mailnews/base/build/nsMsgFactory.cpp

@@ -134,7 +134,9 @@ nsresult nsMsgFactory::LockFactory(PRBool aLock)
 }  
 
 // return the proper factory to the caller. 
-extern "C" NS_EXPORT nsresult NSGetFactory(const nsCID &aClass, nsIFactory **aFactory)
+extern "C" NS_EXPORT nsresult NSGetFactory(const nsCID &aClass,
+                                           nsISupports *serviceMgr,
+                                           nsIFactory **aFactory)
 {
 	if (nsnull == aFactory)
 		return NS_ERROR_NULL_POINTER;