Add missing initilization in post_parse_hook
Add missing initilization in post_parse_hook

Without those two added function calls, the input is broken and the
offscreen widget are not transparent (but black background)

https://bugzilla.gnome.org/show_bug.cgi?id=663419

Distrotech/clutter-gtk,GNOME/clutter-gtk,Distrotech/clutter-gtk,Distrotech/clutter-gtk,GNOME/clutter-gtk