[gtk+] shortcuts: Cosmetic change

[Matthias Clasen <matthiasc src gnome org>]

commit 6efbf329c3b4ef2754bc7de1afbac1af9276d175
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Oct 26 07:22:28 2015 -0400

    shortcuts: Cosmetic change
    
    The .flat style class is controlled by the relief property,
    so just use that instead of manually setting style classes.

 gtk/gtkshortcutswindow.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkshortcutswindow.c b/gtk/gtkshortcutswindow.c
index 5e274ec..5e1cc3e 100644
--- a/gtk/gtkshortcutswindow.c
+++ b/gtk/gtkshortcutswindow.c
@@ -26,6 +26,7 @@
 #include "gtkshortcutsshortcut.h"
 #include "gtksearchbar.h"
 #include "gtksearchentry.h"
+#include "gtkwidgetprivate.h"
 #include "gtkprivate.h"
 #include "gtkintl.h"
 
@@ -753,8 +754,8 @@ gtk_shortcuts_window_init (GtkShortcutsWindow *self)
   priv->menu_button = g_object_new (GTK_TYPE_MENU_BUTTON,
                                     "focus-on-click", FALSE,
                                     "visible", TRUE,
+                                    "relief", GTK_RELIEF_NONE,
                                     NULL);
-  gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (priv->menu_button)), "flat");
   gtk_stack_add_named (priv->title_stack, GTK_WIDGET (priv->menu_button), "sections");
 
   menu_box = g_object_new (GTK_TYPE_BOX,