update chrome addon configuration

Author: dkamburov

.travis.yml

@@ -1,17 +1,14 @@
 sudo: required
-dist: trusty
+dist: xenial
 language: node_js
 node_js:
 - '10.13.0'
+addons:
+  chrome: stable
+services:
+  - xvfb
 before_install:
-- export NG_CLI_ANALYTICS=false
-- export CHROME_BIN=/usr/bin/google-chrome
 - export DISPLAY=:99.0
-- sh -e /etc/init.d/xvfb start
-- sudo apt-get -qq update
-- sudo apt-get install -y libappindicator1 fonts-liberation
-- wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
-- sudo dpkg -i google-chrome*.deb
 - sleep 3
 
 script: