[gnome-dictionary] gdict: Fix wrong casting

[Juan R. Garcia Blanco <juanrgar src gnome org>]

commit f97cf7a30a7a1a27f6280890dd233cbc79a66e7c
Author: Juan R. García Blanco <juanrgar gmail com>
Date:   Sat Jul 25 23:23:08 2015 +0200

    gdict: Fix wrong casting

 libgdict/gdict-database-chooser.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/libgdict/gdict-database-chooser.c b/libgdict/gdict-database-chooser.c
index 308cbd0..2ba0acd 100644
--- a/libgdict/gdict-database-chooser.c
+++ b/libgdict/gdict-database-chooser.c
@@ -787,8 +787,8 @@ lookup_end_cb (GdictContext *context,
   gtk_spinner_stop (GTK_SPINNER (priv->spinner));
   gtk_stack_set_visible_child_name (GTK_STACK (priv->stack), "chooser");
 
-  gtk_widget_set_size_request (GTK_POPOVER (priv->popover), 300, -1);
-  gtk_widget_set_vexpand (GTK_POPOVER (priv->popover), TRUE);
+  gtk_widget_set_size_request (GTK_WIDGET (priv->popover), 300, -1);
+  gtk_widget_set_vexpand (GTK_WIDGET (priv->popover), TRUE);
 
   priv->is_loaded = TRUE;
   priv->is_searching = FALSE;