Comment by lozenge
18 hours ago
I can understand Android (including the Linux kernel) being "too big" and "too separate" to go into Google3, but why Chromium? When it was forked from KHTML/WebKit it was probably not that big compared to the rest of Google's codebase.
Chromium is open source. As such it needs to be hosted via a publicly accessible stack (Git/Gerrit) so that external contributors can use it.
Size has nothing to do with it.
This is not a complete answer.
There are many open source projects that are developed in google3.
Good old capybara