[mutter] (2 commits) Non-fast-forward update to branch wip/carlosg/tap-on-opaque-tablets

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'wip/carlosg/tap-on-opaque-tablets' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  df5d0c1... backends: Always enable tap-to-click/drag on opaque Wacom t

Commits added to the branch:

  a8cb84c... window-actor: Also cull out clip_region (*)
  1e7285b... backends: Always enable tap-to-click/drag on opaque Wacom t

(*) This commit already existed in another branch; no separate mail sent