Ubuntu 16.04 LTS にGoogle ChromeをPPAからインストール - Qiita
$ wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
$ sudo sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list'$ sudo apt-get update
$ sudo apt-get install google-chrome-stable