[mutter] (15 commits) Non-fast-forward update to branch wip/carlosg/xwayland-on-demand

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/xwayland-on-demand' 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:

  d31fb64... core: Ensure passive key grabs are only set up on X11
  c9459fa... x11: Add meta_x11_get_display_name() function
  1226c59... core: Prepare MetaStackTracker for X11 display being closed
  cf4a9b3... x11: Do not queue stack operation for guard window
  21411fa... core: Manage only X11 windows when (re)starting
  885f89a... wayland: Rename xwayland init/shutdown functions
  d367d97... wayland: Disconnect signal when the display closes
  038720f... compositor: Add explicit API call to redirect X11 windows
  c1f3951... wayland: Add tracking of X11 windows
  471eca3... wayland: Refactor code setting up the display socket
  a4f4782... wayland: Add setting/api to check the policy to set up the 
  21b4cf8... x11: Shuffle x11-stack destruction in MetaX11Display dispos
  14f41f3... x11: Add "closing" flag to MetaX11Display
  323742e... core: Avoid queueing a stack operation on the frame when th
  41bff1e... wayland: Implement on-demand start of Xwayland

Commits added to the branch:

  3c8d417... core: Ensure passive key grabs are only set up on X11
  4ee90fb... x11: Add meta_x11_get_display_name() function
  f102297... core: Prepare MetaStackTracker for X11 display being closed
  0d6ba16... x11: Do not queue stack operation for guard window
  c2bc9ec... core: Manage only X11 windows when (re)starting
  fcfb328... wayland: Rename xwayland init/shutdown functions
  b8fd6fb... wayland: Disconnect signal when the display closes
  95389d9... compositor: Add explicit API call to redirect X11 windows
  67e10ef... wayland: Add tracking of X11 windows
  1e87fe5... wayland: Refactor code setting up the display socket
  d8143f3... wayland: Add setting/api to check the policy to set up the 
  d004922... x11: Shuffle x11-stack destruction in MetaX11Display dispos
  00b780f... x11: Add "closing" flag to MetaX11Display
  3252a97... core: Avoid queueing a stack operation on the frame when th
  e62cd37... wayland: Implement on-demand start of Xwayland