Comment 18 for bug 320459

http://hg.mozilla.org/mozilla-central/rev/6efa9c970d64
http://hg.mozilla.org/mozilla-central/rev/f7d4bb87cda0

I also landed the mochitests briefly:
http://hg.mozilla.org/mozilla-central/rev/7effc03f2f45
but it caused Tinderbox orange "Unable to restore focus, expect failures and timeouts." so I backed it out:
http://hg.mozilla.org/mozilla-central/rev/ae945d36888c

I filed bug 468390 for the remaining assertion for the first testcase.
I don't get any significant assertions for the 2nd testcase (on Linux).

-> FIXED