[gtk+] message dialog: Use an element name

[Matthias Clasen <matthiasc src gnome org>]

commit 4fe1b9589ee2d0df1afb6f8f822cbfb30854c6e0
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Oct 30 23:48:46 2015 -0400

    message dialog: Use an element name

 gtk/gtkmessagedialog.c     |    2 ++
 gtk/ui/gtkmessagedialog.ui |    3 ---
 2 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkmessagedialog.c b/gtk/gtkmessagedialog.c
index f20674a..0a56ace 100644
--- a/gtk/gtkmessagedialog.c
+++ b/gtk/gtkmessagedialog.c
@@ -301,6 +301,8 @@ gtk_message_dialog_class_init (GtkMessageDialogClass *class)
   gtk_widget_class_bind_template_child_private (widget_class, GtkMessageDialog, label);
   gtk_widget_class_bind_template_child_private (widget_class, GtkMessageDialog, secondary_label);
   gtk_widget_class_bind_template_child_internal_private (widget_class, GtkMessageDialog, message_area);
+
+  gtk_widget_class_set_css_name (widget_class, "messagedialog");
 }
 
 static void
diff --git a/gtk/ui/gtkmessagedialog.ui b/gtk/ui/gtkmessagedialog.ui
index 09b0eaa..1f7cb37 100644
--- a/gtk/ui/gtkmessagedialog.ui
+++ b/gtk/ui/gtkmessagedialog.ui
@@ -6,9 +6,6 @@
     <property name="resizable">0</property>
     <property name="type_hint">dialog</property>
     <property name="skip_taskbar_hint">1</property>
-    <style>
-      <class name="message-dialog"/>
-    </style>
     <child internal-child="headerbar">
       <object class="GtkHeaderBar" id="headerbar1">
         <property name="visible">1</property>