[gnome-shell] ScreenShield: reduce curtain sliding time to 0.5 seconds

[Giovanni Campagna <gcampagna src gnome org>]

commit a5f2d289bd6b8d309b6e63cfd8bb723400de8975
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Fri Aug 17 01:16:20 2012 +0200

    ScreenShield: reduce curtain sliding time to 0.5 seconds
    
    Current time is too long, 0.5 was proved to be more effective
    in user testing.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=681143

 js/ui/screenShield.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index 5e294c2..f375417 100644
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -18,7 +18,7 @@ const Tweener = imports.ui.tweener;
 const SCREENSAVER_SCHEMA = 'org.gnome.desktop.screensaver';
 const LOCK_ENABLED_KEY = 'lock-enabled';
 
-const CURTAIN_SLIDE_TIME = 0.8;
+const CURTAIN_SLIDE_TIME = 0.5;
 // fraction of screen height the arrow must reach before completing
 // the slide up automatically
 const ARROW_DRAG_TRESHOLD = 0.1;