"Nobody can read the source code of Chrome. Not alone, not as a team. Humans don't live long enough. Any group that claims to have gone through the code and de-Googlized it is lying: all that's possible to do is some searches, and try to measure what traffic it emits. A thousand people working for a decade couldn't read the entire thing."
@mweagle I think that's kinda an exaggeration. Short of intentional vulns in one part of the codebase exposing other parts in non obvious ways, the layers that can cause traffic should be tractable to isolate and read. But nobody is doing that and it would still be a pretty enormous project.