Deprecate gtk_file_chooser_*_new_with_backend(), since GIO is already used

Deprecate gtk_file_chooser_*_new_with_backend(), since GIO is already used

2008-08-04  Carlos Garnacho  <carlos@imendio.com>

        * gtk/gtk.symbols:
        * gtk/gtkfilechooserbutton.[ch]:
        * gtk/gtkfilechooserdefault.[ch]:
        * gtk/gtkfilechooserdialog.[ch]:
        * gtk/gtkfilechooserwidget.[ch]: Deprecate
        gtk_file_chooser_*_new_with_backend(), since GIO is already used
        directly. Fixes #545976.

svn path=/trunk/; revision=20972