See http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fforms%2Fselect-set-length-with-mutation-remove.html&group=%40ToT%20-%20chromium.org
Updated the expectation to Timeout in http://trac.webkit.org/changeset/133698 Flakiness dashboard link: http://test-results.appspot.com/dashboards/flakiness_dashboard.html#tests=fast%2Fforms%2Fselect-set-length-with-mutation-remove.html