Since we have switched to running 1 worker per worker process, we've been removing the v8 locks from the code to avoid triggering unnecessary api checks. This is one of the v8::Locker usages that's left.
Created attachment 30749 [details] Proposed patch This completes the fix for bug 25944, since the patches for enabling timers and that bug have "crossed in the queue". Existing LayoutTests/fast/workers/worker-timeout.html covers this fix (will start work in Chromium).
Landed: http://trac.webkit.org/changeset/44256