Location of Chrome Preferences in its code base

Question

I've been trying to collate a master list of preferences of the google chrome browser that I can use for my automation. I've been trying to go through it's codebase and identify the path of the master pref file.

Can someone please help point the .cc/.h location where I can find all the profile prefs?

I have found: https://github.com/chromium/chromium/blob/main/chrome/common/pref_names.h but it doesn't have all of the prefs that I'm looking for.