[mutter] (5 commits) Non-fast-forward update to branch cherry-pick-8ec8a267

[Robert Mader <rmader src gnome org>]

The branch 'cherry-pick-8ec8a267' 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:

  73fe638... display: Unmanage windows before compositor

Commits added to the branch:

  09a797b... wayland/buffer: Only query Wayland EGL buffer if display bo (*)
  c06962c... window-actor: Add API to get the surface actor candidate fo (*)
  3bdd6e1... window-actor/x11: Don't use direct scanout if the window is (*)
  167ea19... window-actor/wayland: Only use scanout for opaque non-fulls (*)
  a7e1e2a... display: Unmanage windows before compositor

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