Launch Hangouts in Chrome without a plugin

Over the next week, users will be able to launch Hangouts in Chrome without having to download and install a plugin. This will simplify initial setup and maintenance. Users of other browsers will still need to use the plugin.

Release track:

Rapid release and Scheduled release

For more information:
https://plus.google.com/u/0/103171586947853434456/posts/39TCW3PcLye

Reference by : www.google.com