[mutter] (6 commits) Non-fast-forward update to branch gbsneto/pick-culling

[Marge Bot <marge-bot src gnome org>]

The branch 'gbsneto/pick-culling' 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:

  bc71048... clutter/pick-stack: Add autoptr support
  5076fe8... clutter/stage: Remove cached pick mode
  1ff5015... clutter/pick-context: Store point and ray on construction
  eb9a66f... clutter/paint-volume: Add new API to convert to graphene_bo
  1453ea2... clutter/actor: Cull out when picking

Commits added to the branch:

  1a1f1ec... clutter/frame-clock: Schedule a frame at least once per sec (*)
  3073aee... clutter/pick-stack: Add autoptr support
  1b29d26... clutter/stage: Remove cached pick mode
  c3534d3... clutter/pick-context: Store point and ray on construction
  1fdde25... clutter/paint-volume: Add new API to convert to graphene_bo
  6c4b897... clutter/actor: Cull out when picking

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