Since something will be divided by these variables in
show_min_width()/show_min_height() and show_activate_width()/
show_activate_height(), a divided error would be triggered if
they are zero.
Signed-off-by: NWen-chien Jesse Sung <jesse.sung@canonical.com>
Acked-by: NRafi Rubin <rafi@seas.upenn.edu>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>