[mutter] (10 commits) Non-fast-forward update to branch wip/carlosg/xwayland-non-fatal-io-errors

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/xwayland-non-fatal-io-errors' 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:

  53ef6d6... xwayland: Protect against MetaX11Display abruptly closing
  a86aaae... wayland: Set IO error exit handler

Commits added to the branch:

  453e02b... backends/x11: fix the property type for the scroll button (*)
  e04e003... backends/x11: factor out the scroll method property changes (*)
  48243bf... backends/x11: if the scroll button is nonzero, enable butto (*)
  aa56595... clutter-backend-x11: Don't set the font-dpi computed on X11 (*)
  6e3ecad... backends/native: Fall back to compositing if direct scanout (*)
  aa638f4... backends/native: fix the scroll button lock right/middle mi (*)
  db79673... wayland/window: Always flag acked move/resize as 'moved' if (*)
  647eec5... cogl: Flush specific framebuffers (*)
  8a54ef7... xwayland: Protect against MetaX11Display abruptly closing
  27a5df8... wayland: Set IO error exit handler

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