[mutter] (6 commits) Non-fast-forward update to branch wip/idletime-inhibitors

[Bastien Nocera <hadess src gnome org>]

The branch 'wip/idletime-inhibitors' 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:

  8196030... backends: Remove X11 idle-monitor backend
  303d4eb... x11: Allow XTest and core events to reset idletime
  8b850f6... idle-monitor: Take idle inhibition into account
  f8feec7... backend: Reset idle when lid is opened or resuming from sus
  5ddb7ca... idle-monitor: Add ResetIdletime API, for testing purposes

Commits added to the branch:

  b6f5bab... wayland: Plug surface pending state contents leak (*)
  0f4add1... backends: Remove X11 idle-monitor backend
  669fcbc... x11: Allow XTest and core events to reset idletime
  60fe19b... idle-monitor: Take idle inhibition into account
  f7a06eb... backend: Reset idle when lid is opened or resuming from sus
  bc0a81a... idle-monitor: Add ResetIdletime API, for testing purposes

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