[gnome-shell] loginDialog: Use GLib instead of Mainloop for timeout

[Ray Strode <halfline src gnome org>]

commit b1239b1257fe2990f19b7d6eb31af10fd3c1c26a
Author: verdre <gitlab v0yd nl>
Date:   Tue Apr 17 16:43:06 2018 +0200

    loginDialog: Use GLib instead of Mainloop for timeout
    
    imports.mainloop is deprecated

 js/gdm/loginDialog.js | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 4cb79664c..dc5eaa235 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -25,7 +25,6 @@ const GLib = imports.gi.GLib;
 const GObject = imports.gi.GObject;
 const Gtk = imports.gi.Gtk;
 const Lang = imports.lang;
-const Mainloop = imports.mainloop;
 const Meta = imports.gi.Meta;
 const Pango = imports.gi.Pango;
 const Shell = imports.gi.Shell;
@@ -1008,7 +1007,7 @@ var LoginDialog = new Lang.Class({
 
         let hold = new Batch.Hold();
 
-        this._timedLoginIdleTimeOutId = Mainloop.timeout_add_seconds(_TIMED_LOGIN_IDLE_THRESHOLD,
+        this._timedLoginIdleTimeOutId = GLib.timeout_add_seconds(GLib.PRIORITY_DEFAULT, 
_TIMED_LOGIN_IDLE_THRESHOLD,
             () => {
                 this._timedLoginAnimationTime -= _TIMED_LOGIN_IDLE_THRESHOLD;
                 hold.release();