[mutter] (3 commits) Non-fast-forward update to branch wip/carlosg/avoid-parent-relayouts

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/avoid-parent-relayouts' 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:

  44730d1... clutter: Avoid relayouts when raising/lowering children
  8f3c450... clutter: Only redraw affected portions on parent widget on 

Commits added to the branch:

  620e26b... clutter: Make paint volume argument const on queue_redraw*(
  da16167... clutter: Avoid relayouts when raising/lowering children
  3a0c474... clutter: Only redraw affected portions on parent widget on