[mutter] (16 commits) Non-fast-forward update to branch wip/carlosg/clip-regions

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/clip-regions' 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:

  0cd75b7... cogl: Add support for clipping regions
  7b13b78... clutter/cogl: Use regions for clipping if necessary
  9bced89... compositor: Use redraw clip region to cull out children
  76d6830... cogl: Drop unused struct field
  9204f78... clutter: Check updated devices with the current clip
  daaea9a... clutter: Drop unused API

Commits added to the branch:

  6051712... profiler: track changes in GLib and Sysprof (*)
  ae238d1... window: Add adjust_fullscreen_monitor_rect virtual method (*)
  dbb95cb... window-xwayland: Add Xwayland fullscreen games workaround (*)
  2202c0d... tests: Explicitly set a background color for offscreen acto (*)
  1688cf7... clutter: Drop the no-clear stage hint (*)
  e5b0f47... cogl: Remove some unused framebuffer API (*)
  db90c0d... clutter/stage-view: Separate offscreen and shadowfb (*)
  60800d2... renderer-native: Separate offscreen and shadowfb (*)
  f133de2... clutter/actor: Unref the root node if set as child (*)
  5e87d67... surface-actor-wayland: Do not send frame callbacks if the a (*)
  25e5050... cogl: Add support for clipping regions
  ba086f0... clutter/cogl: Use regions for clipping if necessary
  de35fe1... compositor: Use redraw clip region to cull out children
  3ba395e... cogl: Drop unused struct field
  2d28759... clutter: Check updated devices with the current clip
  e746d88... clutter: Drop unused API

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