Mark a layout test as slow.
Mark a layout test as slow.

BUG=36539

Review URL: http://codereview.chromium.org/652117

git-svn-id: http://src.chromium.org/svn/trunk/src@39714 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3d9a81199f249a33b6d46c6c16db755584cb9ee7
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser