[gdm: 8/10] gdm-session-worker: Replace deprecated g_type_class_add_private()

[Ray Strode <halfline src gnome org>]

commit a5f06d7f960b7289c2bdaad45fdcebdb2319ff5e
Author: Robert Mader <robert mader posteo de>
Date:   Thu Mar 14 00:10:11 2019 +0100

    gdm-session-worker: Replace deprecated g_type_class_add_private()

 daemon/gdm-session-worker.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/daemon/gdm-session-worker.c b/daemon/gdm-session-worker.c
index 1193e7cd..93ae79c9 100644
--- a/daemon/gdm-session-worker.c
+++ b/daemon/gdm-session-worker.c
@@ -211,7 +211,8 @@ G_DEFINE_TYPE_WITH_CODE (GdmSessionWorker,
                          gdm_session_worker,
                          GDM_DBUS_TYPE_WORKER_SKELETON,
                          G_IMPLEMENT_INTERFACE (GDM_DBUS_TYPE_WORKER,
-                                                worker_interface_init))
+                                                worker_interface_init)
+                         G_ADD_PRIVATE (GdmSessionWorker))
 
 /* adapted from glib script_execute */
 static void
@@ -3460,8 +3461,6 @@ gdm_session_worker_class_init (GdmSessionWorkerClass *klass)
         object_class->constructor = gdm_session_worker_constructor;
         object_class->finalize = gdm_session_worker_finalize;
 
-        g_type_class_add_private (klass, sizeof (GdmSessionWorkerPrivate));
-
         g_object_class_install_property (object_class,
                                          PROP_SERVER_ADDRESS,
                                          g_param_spec_string ("server-address",