This test has a built-in 200ms timeout, which is a very short time for a regression test, especially when it happens to run on a machine with hyper-threading, or in an instrumented build.
Created attachment 243767 [details] proposed fix
Comment on attachment 243767 [details] proposed fix Clearing flags on attachment: 243767 Committed r177762: <http://trac.webkit.org/changeset/177762>
All reviewed patches have been landed. Closing bug.