Comment 10 for bug 1698282

Another prototype fix done, this one more likely to be accepted upstream:
https://git.launchpad.net/~vanvugt/ubuntu/+source/clutter-gtk/commit/?id=eef8eb07e2516d08a984f8128a308943de0d0902

but not until I figure out the smoothness issue separately (visible in gnome-maps panning at least).