[gnome-shell] overviewControls: Add the parent's box into the allocation

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

commit 445011b1e5b1a271ba5410f11c63feca1ec8d139
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Mon Oct 21 17:51:50 2013 -0400

    overviewControls: Add the parent's box into the allocation
    
    Currently, this is always 0, but this will change when we introduce
    a custom layout manager into the story.

 js/ui/overviewControls.js |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/js/ui/overviewControls.js b/js/ui/overviewControls.js
index 8d18997..1ca4178 100644
--- a/js/ui/overviewControls.js
+++ b/js/ui/overviewControls.js
@@ -66,9 +66,9 @@ const SlideLayout = new Lang.Class({
         let alignX = (realDirection == SlideDirection.LEFT) ? (availWidth - natWidth) : 0;
 
         let actorBox = new Clutter.ActorBox();
-        actorBox.x1 = alignX;
+        actorBox.x1 = box.x1 + alignX;
         actorBox.x2 = actorBox.x1 + child.x_expand ? availWidth : natWidth;
-        actorBox.y1 = 0;
+        actorBox.y1 = box.y1;
         actorBox.y2 = actorBox.y1 + availHeight;
 
         child.allocate(actorBox, flags);