[gnome-shell] loginDialog: don't show Not Listed? button before user list

[Ray Strode <halfline src gnome org>]

commit 74ad6abfc205977dd2798d06e9f1a5072cda7b42
Author: Ray Strode <rstrode redhat com>
Date:   Wed Jun 26 10:52:02 2013 -0400

    loginDialog: don't show Not Listed? button before user list
    
    Right now, there's a weird flicker at start up where the
    Not Listed? button shows up before the user list, which looks
    pretty bad if you're watching for it.
    
    This commit fixes that problem by hiding the Not Listed button
    initially and showing it at the appropriate time.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=703132

 js/gdm/loginDialog.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index af5103a..6b00007 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -621,6 +621,7 @@ const LoginDialog = new Lang.Class({
                                                 x_fill: true });
 
         this._notListedButton.connect('clicked', Lang.bind(this, this._hideUserListAndLogIn));
+        this._notListedButton.hide();
 
         this._userSelectionBox.add(this._notListedButton,
                                    { expand: false,
@@ -1153,6 +1154,7 @@ const LoginDialog = new Lang.Class({
     _showUserList: function() {
         this._hidePrompt();
         this._setUserListExpanded(true);
+        this._notListedButton.show();
         this._userList.actor.grab_key_focus();
     },