[edejong]

Using Gerrit, which is an automated mimick of Linus' development model.

By the way, we've been succesfully using Gerrit on smaller-scale projects as well (around 8 change-requests / day) and don't even want to think about going back to pull-requests.

[sunnyps]

What you've said is essentially correct, but I'd like to make a minor correction: Chromium uses rietveld whereas Android (and some Chromium related projects) use gerrit. Rietveld and gerrit have similar workflows except that gerrit is more integrated with git (I think). Both are named after Gerrit Rietveld, a famous Dutch designer.