[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:

  ded24c8... window-actor: Turn into a derivable class
  10f3ab2... Add MetaWindowActorX11 and MetaWindowActorWayland
  0a95588... window-actor: Select X11 or Wayland actor based on client t
  14c0cfa... window-actor: Move X11-specific code to MetaWindowActorX11
  552ebd3... window-actor: Cleanup includes
  3fe7f56... Document window and surface actors
  133f190... window-actor: Move window actor creation to MetaCompositor
  8c007e9... window-actor: Remove post_init() vfunc
  a290a59... window-actor: Turn into an abstract class

Commits added to the branch:

  2fe05d7... x11-display: Add back _GTK_EDGE_CONSTRAINTS as supported hi (*)
  60f7ff3... window-actor: Turn into a derivable class
  7e8fc13... Add MetaWindowActorX11 and MetaWindowActorWayland
  ac2f8ca... window-actor: Select X11 or Wayland actor based on client t
  80e3c1d... window-actor: Move X11-specific code to MetaWindowActorX11
  0442fc8... window-actor: Cleanup includes
  7952808... Document window and surface actors
  4c2f369... window-actor: Move window actor creation to MetaCompositor
  74d75ca... window-actor: Remove post_init() vfunc
  4423362... window-actor: Turn into an abstract class

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