Update chromium style to match what's used in Chromium (#789)

* Rename "chromium" style to "yapf".

Chromium has decided to just follow PEP-8

Relevant Chromium style discussion:
https://groups.google.com/a/chromium.org/g/chromium-dev/c/RcJgJdkNIdg/discussion

* Added "yapf" to the style list.

Co-authored-by: Andrew Grieve <agrieve@google.com>
Co-authored-by: Bill Wendling <morbo@google.com>
Co-authored-by: Bill Wendling <5993918+gwelymernans@users.noreply.github.com>
14 files changed