[gnome-shell/wip/paging] Fixed bad calculation of empty rows, causing moving the current row with the fodler icon when it can

[Carlos Soriano <csoriano src gnome org>]

commit b51d2f4cbaa6a61490fe713e6467e26c8b03cfe4
Author: Carlos Soriano <carlos soriano89 gmail com>
Date:   Wed Jul 24 18:47:45 2013 +0200

    Fixed bad calculation of empty rows, causing moving the current row with
    the fodler icon when it can stay inn the position

 js/ui/appDisplay.js |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/js/ui/appDisplay.js b/js/ui/appDisplay.js
index 04e41a5..f5bc0b6 100644
--- a/js/ui/appDisplay.js
+++ b/js/ui/appDisplay.js
@@ -240,7 +240,7 @@ const AppPages = new Lang.Class({
             }
         }
         //The last page can have space without rows
-        let emptyRows = folderNVisibleRowsAtOnce + 1 - rows.length ;
+        let emptyRows = this._grid._rowsPerPage - rows.length ;
         let panViewUpNRows = 0;
         let panViewDownNRows = 0;
         if(side == St.Side.BOTTOM) {