Wholy Crap. But it'll draw a colored rectangle if you detach the texture mailbox which is soemthing.
Try to ack frames so compositing works on platforms with a threaded compositor (eg., linux).
Merge branch 'omfg' of https://github.com/chromium-refactor/chromium into ajwong_kenrb_merge

Conflicts:
	content/renderer/remote_frame_compositing_helper.cc