[gtk+] x11: Stop using gdk_screen_get_default

[Matthias Clasen <matthiasc src gnome org>]

commit a5ba92830e4308f44b333c1b0c9ad62c806ec1e6
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Nov 1 18:14:48 2017 -0400

    x11: Stop using gdk_screen_get_default
    
    This api is going away.

 gdk/x11/gdkdevice-xi2.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gdk/x11/gdkdevice-xi2.c b/gdk/x11/gdkdevice-xi2.c
index 74574e3..8af7f34 100644
--- a/gdk/x11/gdkdevice-xi2.c
+++ b/gdk/x11/gdkdevice-xi2.c
@@ -304,9 +304,10 @@ gdk_x11_device_xi2_warp (GdkDevice *device,
 {
   GdkX11DeviceXI2 *device_xi2 = GDK_X11_DEVICE_XI2 (device);
   Window dest;
-  GdkScreen *screen = gdk_screen_get_default ();
+  GdkDisplay *display = gdk_device_get_display (device);
+  GdkScreen *screen = GDK_X11_DISPLAY (display)->screen;
 
-  dest = GDK_WINDOW_XID (gdk_display_get_root_window (gdk_device_get_display (device)));
+  dest = GDK_WINDOW_XID (gdk_display_get_root_window (display));
 
   XIWarpPointer (GDK_SCREEN_XDISPLAY (screen),
                  device_xi2->device_id,