[askvictor]

Gah. A blob with no info about it.

Looking a little further, it appears to be a ProtocolBuffer file, but would a bit of documentation hurt?

[tgsovlerkhgsel]

An early version of the proto I found is:

https://chromium.googlesource.com/chromium/src.git/+/5d90890...

So the proto is a red herring, it's basically just a container for a blob in some other format.

https://chromium-review.googlesource.com/c/chromium/src/+/80... contains a lot of related files, including https://chromium-review.googlesource.com/c/chromium/src/+/80... which explains the format.

I'm surprised that there isn't a plain text version of the list checked in somewhere, but maybe I just missed it.