I doubt why Awesomium is not updating anymore
Develop games in your browser. Powerful, performant & highly capable.
They probably didn't make much money or something and gave up.
Not at all. Awesomium is very much an active project and used in a number of projects and even AAA games: Everquest 2, Tribes Ascend, Overgrowth and I'm not positive but the browser technology for Stream might be implemented with Awesomium.
The problem with Awesomium is that it was intended as a way to put a browser in a game or solution; not necessarily being a wrapper for a browser type game. Whereas when running in a game it's usually some sort of UI or webpage; which tends to run just as well with an older version of chromium as well as the most recent. This is how the Awesomium team can afford to work on a much longer development cycle with older versions of chrome.