[gtk] Fix the Emoji chooser finalize

[Matthias Clasen <matthiasc src gnome org>]

commit 11ab39617e0b247dd6a7001980fe29950c518859
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 12 14:23:01 2020 -0500

    Fix the Emoji chooser finalize
    
    If the Emoji chooser is finalized before the idle
    has run, it would spew criticals, breaking some tests.
    Avoid that.

 gtk/gtkemojichooser.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkemojichooser.c b/gtk/gtkemojichooser.c
index 00a9edc262..36d3e35cfc 100644
--- a/gtk/gtkemojichooser.c
+++ b/gtk/gtkemojichooser.c
@@ -110,8 +110,8 @@ gtk_emoji_chooser_finalize (GObject *object)
   if (chooser->populate_idle)
     g_source_remove (chooser->populate_idle);
 
-  g_variant_unref (chooser->data);
-  g_object_unref (chooser->settings);
+  g_clear_pointer (&chooser->data, g_variant_unref);
+  g_clear_object (&chooser->settings);
 
   G_OBJECT_CLASS (gtk_emoji_chooser_parent_class)->finalize (object);
 }