[gnome-shell] loginDialog: Fade in the gdm auth prompt on login

[Jasper St. Pierre <jstpierre src gnome org>]

commit 80ab28bc3a0f6914a50b918dd661ca0179865279
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Aug 26 18:04:09 2013 -0400

    loginDialog: Fade in the gdm auth prompt on login

 js/gdm/loginDialog.js |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 9c1e7eb..0e7e549 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -905,6 +905,12 @@ const LoginDialog = new Lang.Class({
                                         { sortGroup: CtrlAltTab.SortGroup.MIDDLE });
         this._userList.actor.grab_key_focus();
         this.actor.show();
+        this.actor.opacity = 0;
+
+        Tweener.addTween(this.actor,
+                         { opacity: 255,
+                           time: 1,
+                           transition: 'easeInQuad' });
 
         return true;
     },