[gtk: 2/2] Merge branch 'wayland-surface-unmap' into 'master'

[Benjamin Otte <otte src gnome org>]

commit c878168b8d24f2b570300765af720e850e45aa84
Merge: 74eea6511f f2d598b9a1
Author: Benjamin Otte <otte benjamin googlemail com>
Date:   Sat May 18 19:24:47 2019 +0000

    Merge branch 'wayland-surface-unmap' into 'master'
    
    wayland: Keep some resources until destroy
    
    Closes #1485
    
    See merge request GNOME/gtk!857

 gdk/wayland/gdksurface-wayland.c | 89 ++++++++++++++++++++++++----------------
 1 file changed, 54 insertions(+), 35 deletions(-)
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