[gtk+] mir: Stop using gdk_screen_get_display

[Matthias Clasen <matthiasc src gnome org>]

commit 93053adbf662f818fd32124861cf44f5893b528e
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 1 19:42:52 2017 -0400

    mir: Stop using gdk_screen_get_display
    
    Just use the field directly.

 gdk/mir/gdkmirscreen.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gdk/mir/gdkmirscreen.c b/gdk/mir/gdkmirscreen.c
index 76ae194..68ece8c 100644
--- a/gdk/mir/gdkmirscreen.c
+++ b/gdk/mir/gdkmirscreen.c
@@ -266,7 +266,7 @@ change_setting (GdkMirScreen *screen,
   else
     g_hash_table_remove (screen->current_settings, name);
 
-  gdk_display_setting_changed (gdk_screen_get_display (screen), name);
+  gdk_display_setting_changed (GDK_DISPLAY (GDK_MIR_SCREEN (screen)->display), name);
 }
 
 static const struct