If you like living life dangerously, you might drive over 55, wear socks with sandals, and use Chrome Beta. If that sounds like you, then you've been using Chrome with Material Design for some weeks now. Congratulations.
If not, the Materialization of Chrome Stable is now upon us. Version 37 of Google's browser hit the Play Store just a little while ago, which brings a new user interface and Incognito tab page, a simplified sign-in, and of course lots of bug fixes and improvements.