http://www.theverge.com/2015/12/1/9833006/google-chrome-notification-center-removed [theverge.com]

Google removes Chrome's notification center because nobody used it

As promised in October, Google has ditched Chrome's desktop notification center in its latest update, released today. The company first introduced the center back in 2013 and updated it with support for support for web push notification standard this April, but eventually decided it was unnecessary, noting that "in practice, few users" visited it. Chrome users who upgrade to version 47 of the browser on Windows, Mac, or Linux will no longer see the center in their taskbars, although it remains in Chrome OS for the moment.