[gtk/wip/exalm/test: 6/37] tests: Fix testappchooser test

[Alexander Mikhaylenko <alexm src gnome org>]

commit 31e3c1e362d38ac94a081016222e37cace51569a
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Mon May 11 02:46:28 2020 +0500

    tests: Fix testappchooser test
    
    Don't assume GtkWindow is a container.

 tests/testappchooser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/tests/testappchooser.c b/tests/testappchooser.c
index 82eda9d4ca..7735cdec80 100644
--- a/tests/testappchooser.c
+++ b/tests/testappchooser.c
@@ -230,7 +230,7 @@ main (int argc, char **argv)
   g_signal_connect (open, "clicked",
                     G_CALLBACK (display_dialog), NULL);
 
-  gtk_container_add (GTK_CONTAINER (toplevel), grid);
+  gtk_window_set_child (GTK_WINDOW (toplevel), grid);
 
   gtk_widget_show (toplevel);
   g_signal_connect (toplevel, "destroy", G_CALLBACK (quit_cb), &done);