[gtk/wip/exalm/row] placesview: Stop using gtk_container_add() for GtkListBoxRow

[Alexander Mikhaylenko <alexm src gnome org>]

commit 80078911321bd36b6e7094f13ce5a549a38364d3
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Wed May 6 22:10:16 2020 +0500

    placesview: Stop using gtk_container_add() for GtkListBoxRow

 gtk/gtkplacesview.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkplacesview.c b/gtk/gtkplacesview.c
index a50a2d5ccf..6d32dc3b48 100644
--- a/gtk/gtkplacesview.c
+++ b/gtk/gtkplacesview.c
@@ -872,8 +872,8 @@ update_network_state (GtkPlacesView *view)
       gtk_widget_set_margin_bottom (view->network_placeholder_label, 6);
       gtk_widget_set_hexpand (view->network_placeholder_label, TRUE);
       gtk_widget_set_sensitive (view->network_placeholder, FALSE);
-      gtk_container_add (GTK_CONTAINER (view->network_placeholder),
-                         view->network_placeholder_label);
+      gtk_list_box_row_set_child (GTK_LIST_BOX_ROW (view->network_placeholder),
+                                  view->network_placeholder_label);
       g_object_set_data (G_OBJECT (view->network_placeholder),
                          "is-network", GINT_TO_POINTER (TRUE));
       /* mark the row as placeholder, so it always goes first */