Google has been adding more and more ways to play content on a Chromecast, and today its giving the media streamer a new trick: the ability to stream Google Play music and videos straight from the web. This isnt the very first time that a website has added in Chromecast support, but for the most part, users have still had to go through smartphone or tablet apps in order to stream media directly. With todays update, a lot more content will be just easy to start streaming — at least for those who buy movies and music through the Play store.