Use _gtk_menu_item_popup_submenu() to make keynav into submenus work

Use _gtk_menu_item_popup_submenu() to make keynav into submenus work

2004-12-15  Matthias Clasen  <mclasen@redhat.com>

	* gtk/gtkmenushell.c (gtk_menu_shell_select_submenu_first)
	(gtk_real_menu_shell_activate_current): Use
	_gtk_menu_item_popup_submenu() to make keynav into submenus work
	instantaneously, independent of the popup delay.  (#161140)

	* gtk/gtkmenuitem.[hc]: _-prefix gtk_menu_item_popup_submenu() and
	make it non-static.

	* gtk/gtkmenuitem.c (gtk_menu_item_paint): Remove unused variables.