Embedding the browser is a very small issue compared to what Google actually did: spend money, put chrome ads everywhere on the internet, spend more money, push chrome in its results and pages, spend more money, put chrome ads in physical space. The features don't matter that much - there were a couple of years where you were simply bombarded with ads about a better browser. It worked and they made normies care.
You forgot one: IIRC, Chrome came bundled with some popular Windows applications.
> there were a couple of years where you were simply bombarded with ads about a better browser
Let's not forget the whole context: Chrome's main opponent back then was not Firefox, but Internet Explorer. And it did help reduce Internet Explorer's usage share, so much that it was abandoned (again) by its developers.
