Google is proposing and very actively working in the WHATWG and both WebKit and V8 are open source. So you can easily access the specifications for these APIs and see how they implemented them. It's the absolute opposite of "the Microsoft way". They even hired Ian Hickson, who pretty much is the "web standards guy".

It's not Google's fault that the other browser vendors are not as fast as them. They will eventually catch up and we'll all have a better web. I'm really glad the situation has changed so much since the days of "IE 6 only" and later "we all have to wait for the slow learning kid, IE". For a web developer these days are truly exciting.