We need to have all the crashes and reftest failures from running with
hardware-accelerated layers filed as bugs. Crashes should block bug 580405, and
reftest failures should block bug 586462.
In order to run with accelerated layers, do this in your shell:
$ export MOZ_ACCELERATED=11
$ cd (wherever your object directory is)
$ make reftest
Reftests are now green on tinderbox with accelerated layers enabled.