I ran across this article: https://www.theregister.co.uk/2010/03/16/google_chrome_unique_identifier_change/ and was curious if Google Chrome ever followed through with it. Google searches are neither confirming nor denying, so I decided to ask here. In current versions of Chrome, does the 'token' self-delete upon "initial update"? If not, is this token in Chrome variants (SRWare Iron, Slimjet, Ungoogled Chromium, etc.)?