device-manager-xi2: Fix scaling of coordinates
device-manager-xi2: Fix scaling of coordinates

Do not CLAMP to width/height before applying the scale factor
we will lose all information we need to scale properly.

https://bugzilla.gnome.org/show_bug.cgi?id=730815

djdeath/clutter,jigpu/clutter,GNOME/clutter,jigpu/clutter,djdeath/clutter,Distrotech/clutter,Distrotech/clutter,GNOME/clutter,jigpu/clutter,djdeath/clutter,jigpu/clutter,djdeath/clutter,Distrotech/clutter,djdeath/clutter,GNOME/clutter,Distrotech/clutter,djdeath/clutter,jigpu/clutter,Distrotech/clutter,GNOME/clutter,Distrotech/clutter,jigpu/clutter,GNOME/clutter