[gnome-builder] util: ensure we hold a reference on widget for destroy callback

[Christian Hergert <chergert src gnome org>]

commit c841231911e434dea2df857bc482928bdf3c5846
Author: Christian Hergert <christian hergert me>
Date:   Mon Dec 15 15:03:12 2014 -0800

    util: ensure we hold a reference on widget for destroy callback

 src/util/gb-widget.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/util/gb-widget.c b/src/util/gb-widget.c
index a3d2a75..b6d2793 100644
--- a/src/util/gb-widget.c
+++ b/src/util/gb-widget.c
@@ -163,6 +163,7 @@ hide_callback (gpointer data)
 
   gtk_widget_hide (widget);
   gtk_widget_set_opacity (widget, 1.0);
+  g_object_unref (widget);
 }
 
 void
@@ -180,7 +181,7 @@ gb_widget_fade_hide (GtkWidget *widget)
                               1000,
                               frame_clock,
                               hide_callback,
-                              widget,
+                              g_object_ref (widget),
                               "opacity", 0.0,
                               NULL);
     }