[gtk+/gtk-3-22] GdkGLContext: chain finalize handler

[Matthias Clasen <matthiasc src gnome org>]

commit 4657e21be8a925ff99cdf2a5ecc7ef993196e022
Author: Massimo Valentini <mvalentini src gnome org>
Date:   Sat Nov 5 14:21:22 2016 +0100

    GdkGLContext: chain finalize handler
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773979

 gdk/gdkglcontext.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkglcontext.c b/gdk/gdkglcontext.c
index f822fa8..c79dca0 100644
--- a/gdk/gdkglcontext.c
+++ b/gdk/gdkglcontext.c
@@ -154,6 +154,7 @@ gdk_gl_context_finalize (GObject *gobject)
   GdkGLContextPrivate *priv = gdk_gl_context_get_instance_private (context);
 
   g_clear_pointer (&priv->paint_data, g_free);
+  G_OBJECT_CLASS (gdk_gl_context_parent_class)->finalize (gobject);
 }
 
 static void