Latest beta release of Chrome for Android has added support for Chromecast streaming for videos. This feature would allow users to connect and stream online videos to their Chromecast connected devices without requiring any additional application.
Currently, users are required to enable this feature by visiting the Chrome flags page, as it is not enabled by default. Interested users can enable the option “Enable Experimental Cast” by visiting “chrome://flags/#enable-cast” (type this in the address bar of Chrome beta app).
Once this feature lands to the stable build of Chrome for Android, users would enjoy quick casting of online videos, including those on YouTube, to their Chromecast devices.
(via Android Police)