[gtk+] lockbutton: Revisit element name

[Matthias Clasen <matthiasc src gnome org>]

commit 826633b5b7a53aeed47b75455ecac1648f5ba027
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 30 00:26:04 2015 -0400

    lockbutton: Revisit element name
    
    Instead of a separate element name, keep button, and just
    add a .lock style class, to inherit the button theming.

 gtk/gtklockbutton.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtklockbutton.c b/gtk/gtklockbutton.c
index 4e2e340..d98072c 100644
--- a/gtk/gtklockbutton.c
+++ b/gtk/gtklockbutton.c
@@ -226,6 +226,7 @@ gtk_lock_button_init (GtkLockButton *button)
 {
   GtkLockButtonPrivate *priv;
   gchar *names[3];
+  GtkStyleContext *context;
 
   button->priv = priv = gtk_lock_button_get_instance_private (button);
 
@@ -242,6 +243,9 @@ gtk_lock_button_init (GtkLockButton *button)
   priv->icon_lock = g_themed_icon_new_from_names (names, -1);
 
   update_state (button);
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (button));
+  gtk_style_context_add_class (context, "lock");
 }
 
 static void
@@ -320,7 +324,7 @@ gtk_lock_button_class_init (GtkLockButtonClass *klass)
   gtk_widget_class_bind_template_child_private (widget_class, GtkLockButton, label_group);
 
   gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_LOCK_BUTTON_ACCESSIBLE);
-  gtk_widget_class_set_css_name (widget_class, "lockbutton");
+  gtk_widget_class_set_css_name (widget_class, "button");
 }
 
 static void