Disable wizard screen test accelerators in official builds.
Disable wizard screen test accelerators in official builds.

BUG=chromium-os:7166
TEST=Wizard screen accelerators are not working in official build.

Review URL: http://codereview.chromium.org/3455030

git-svn-id: http://src.chromium.org/svn/trunk/src@60929 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: bf174516c8b6088c89b6049ca16611a049bde717
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