Chrome Version       : 60.0.3112.113
OS Version           : Ubuntu 14.04 LTS

What steps will reproduce the problem?
With Chrome already running, run `google-chrome $URL` at a shell.

What is the expected result?
$URL opens in a new tab or window, according to preference.

What happens instead of that?
The expected behavior occurs, but then after that, an extra blank window opens.

This affects opening pages through `x-www-browser` as well, which means every link opened in another program spawns an extra window.

UserAgentString: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.113 Safari/537.36