Hello, I was looking into this a little and noticed that http://crbug.com/1141354 was reopened. #980482 mentions this may be related, and is still open and release critical, but seeing that the upstream bug has been reopened, I figured this may deserve to be as well since it looks like a one-to-one match between the two (regardless of whether the RC bug is related/unrelated).
Cheers, Anthony Atkinson
