argh, add nsIWindowMediatorListener.idl to the nmake build

xpfe/appshell/public/makefile.win

@@ -30,6 +30,7 @@ XPIDLSRCS =                        \
 		.\nsICmdLineService.idl	\
 		.\nsICmdLineHandler.idl	\
 		.\nsIWindowMediator.idl	   \
+		.\nsIWindowMediatorListener.idl	   \
 		.\nsIXULWindow.idl       \
         .\nsIUserInfo.idl   \
 		.\nsITimingService.idl \