It times out locally, too, but it's fine on WK1.
Skipped in http://trac.webkit.org/changeset/111337
It's just a slow test, and might be actually working correctly.
Note that this specific test will likely be removed soon with the rest of hixie76 support, but there is also http/tests/websocket/tests/hybi/frame-lengths.html, which likely has the same issue.
This test no longer exists.