[gtranslator] Fix the usage for new gdl.

[Ignacio Casal Quinteiro <icq src gnome org>]

commit ba7fde7f5ae036e5a7ddf144b4269e704e7881d3
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Fri Nov 2 12:31:14 2012 +0100

    Fix the usage for new gdl.
    
    Thanks to gymka for fixing it.
    https://bugzilla.gnome.org/show_bug.cgi?id=687322

 src/gtr-tab.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/gtr-tab.c b/src/gtr-tab.c
index 75fbd35..cfe2031 100644
--- a/src/gtr-tab.c
+++ b/src/gtr-tab.c
@@ -727,11 +727,11 @@ gtr_tab_init (GtrTab * tab)
   gtk_widget_show (priv->dock);
   gtk_box_pack_end (GTK_BOX (hbox), priv->dock, TRUE, TRUE, 0);
 
-  dockbar = gdl_dock_bar_new (GDL_DOCK (priv->dock));
+  dockbar = gdl_dock_bar_new (gdl_dock_layout_get_master (priv->layout_manager));
   gtk_widget_show (dockbar);
   gtk_box_pack_start (GTK_BOX (hbox), dockbar, FALSE, FALSE, 0);
 
-  priv->layout_manager = gdl_dock_layout_new (GDL_DOCK (priv->dock));
+  priv->layout_manager = gdl_dock_layout_new (gdl_dock_layout_get_master (priv->layout_manager));
   g_signal_connect (priv->layout_manager->master,
                     "layout-changed",
                     G_CALLBACK (on_layout_changed),