[gnome-shell] workspace: Adapt to mutter API change

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

commit c36ca625e6e3e9e98b89d677ddcb3ade24c2ffc5
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Tue Jun 17 11:11:47 2014 -0400

    workspace: Adapt to mutter API change

 js/ui/workspace.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/workspace.js b/js/ui/workspace.js
index 51b7e84..943e30b 100644
--- a/js/ui/workspace.js
+++ b/js/ui/workspace.js
@@ -67,7 +67,7 @@ const WindowCloneLayout = new Lang.Class({
         // paradoxically is the smaller rectangle, containing the positions
         // of the visible frame. The input rect contains everything,
         // including the invisible border padding.
-        let inputRect = window.get_input_rect();
+        let inputRect = window.get_buffer_rect();
 
         let box = new Clutter.ActorBox();