[gtk/present-toplevel-2] more win32 build fixes

[Matthias Clasen <matthiasc src gnome org>]

commit f1f01b97c809bdace5057d56c0d1b840eccfe522
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Mar 12 22:03:30 2020 -0400

    more win32 build fixes

 gdk/win32/gdksurface-win32.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/gdk/win32/gdksurface-win32.c b/gdk/win32/gdksurface-win32.c
index f8ffe322ea..a4c5d671b2 100644
--- a/gdk/win32/gdksurface-win32.c
+++ b/gdk/win32/gdksurface-win32.c
@@ -1732,13 +1732,14 @@ gdk_win32_surface_get_geometry (GdkSurface *window,
       API_CALL (GetClientRect, (GDK_SURFACE_HWND (window), &rect));
 
          POINT pt;
+          GdkSurface *parent;
          
-         GdkSurface *parent;
-
           if (GDK_IS_TOPLEVEL (window))
             parent = NULL;
           else if (GDK_IS_POPUP (window))
             parent = gdk_popup_get_parent (GDK_POPUP (window));
+          else
+            parent = NULL;
          
 
          pt.x = rect.left;