> So, in other words, complaints about "Google's broeser is too good, it is unfair how fast they are moving!" Therefore ring hollow.

It's an interesting concept that a company could gain a dominant position in a market involving an open standard, then lead innovations in a way that would be difficult for other companies to challenge or follow.

It's not embrace, extend, extinguish because the changes are not proprietary. Chrome is simply able to out invest everyone else with their cash from their ad business. I am not a legal expert, so I don't know if this type of cross-market subsidization is legal.