within a couple days on chrome canary. It was in r120154, and the current OS X canary is at r120017. That little of a difference usually means a couple days at most.
Safari on the other hand...probably a year or so. Possibly what comes after mountain lion. They won't add it in until it is fairly stable.
Right now it's behind a compile-time flag and although I've asked to go on a runtime flag, we haven't seen that change yet. So.. it won't be available in canary for a few weeks.
Safari on the other hand...probably a year or so. Possibly what comes after mountain lion. They won't add it in until it is fairly stable.