e17/comp: finally. only set PropertyChangeMask on override windows for which we dont have it already.
e17/comp: finally. only set PropertyChangeMask on override windows for which we dont have it already.

removes Xlib header. causes a second round-trip for ecore_x_event_mask_set. but should not happen that often i guess


git-svn-id: 6ac5796aeae0cef97fb47bcc287d4ce899c6fa6e@57811 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/e17,jordemort/e17,jordemort/e17