[mutter] (10 commits) Non-fast-forward update to branch gbsneto/cleanup-x11-from-window-actor

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

The branch 'gbsneto/cleanup-x11-from-window-actor' 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:

  36948b1... window-actor: Turn into a derivable class
  535816c... Add MetaWindowActorX11 and MetaWindowActorWayland
  6723b71... window-actor: Select X11 or Wayland actor based on client t
  9d9eba5... window-actor: Add frame_complete(), pre_paint() and post_pa
  c03941b... window-actor: Add set_surface() vfunc
  db2550e... window-actor: Move X11-specific code to MetaWindowActorX11
  8047774... window-actor: Add assertion about client type
  fcd6e4c... window-actor: Cleanup includes
  6c6c6ba... Add documentation about window and surface actors
  4eb5517... window-actor: Move some code to MetaCompositor

Commits added to the branch:

  e506da5... window-actor: Turn into a derivable class
  19da4df... Add MetaWindowActorX11 and MetaWindowActorWayland
  68dad40... window-actor: Select X11 or Wayland actor based on client t
  7308aa8... window-actor: Add frame_complete(), pre_paint() and post_pa
  9a9a3e5... window-actor: Add set_surface() vfunc
  1ebd546... window-actor: Move X11-specific code to MetaWindowActorX11
  c741c17... window-actor: Add assertion about client type
  298dca4... window-actor: Cleanup includes
  44c9908... Add documentation about window and surface actors
  2dece74... window-actor: Move some code to MetaCompositor