Merged from gtk-2-6:

Merged from gtk-2-6:

2005-05-02  Federico Mena Quintero  <federico@ximian.com>

	Merged from gtk-2-6:

	Fixes #301068:

	* gtk/gtkfilesystemunix.c (struct _GtkFileSystemUnix): Add fields
	to store struct stat for /afs and /net, and boolean fields to say
	whether these are valid.
	(struct _GtkFileFolderUnix): Added a boolean is_network_dir field.
	(gtk_file_system_unix_get_folder): Fill in the is_network_dir
	field of the folder structure.
	(fill_in_names): If the folder is a network directory, create a
	fake struct stat for its entries.
	(fill_in_stats): Don't stat() the children of network directories.

	* gtk/gtkfilechooserdefault.c (list_mtime_data_func): If the mtime
	is 0, use "Unknown" for the cell's displayed text.