Fix Travis tests?

Author: justinfagnani

.travis.yml

@@ -1,10 +1,14 @@
 language: node_js
 sudo: false
-dist: trusty
-node_js: '9'
+dist: xenial
+node_js: '10'
 addons:
   firefox: latest
-  chrome: stable
+  apt:
+    sources:
+      - google-chrome
+    packages:
+      - google-chrome-stable
 cache:
   directories:
   - node_modules
@@ -22,7 +26,7 @@ matrix:
       before_script:
         - npm run lint
       script:
-        - xvfb-run npm run test -- -l chrome
+        - npm run test -- -l chrome
         - if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then wct -s 'windows 10/microsoftedge@15' -s 'windows 10/microsoftedge@17' -s 'windows 8.1/internet explorer@11' -s 'os x 10.11/safari@9' -s 'os x 10.12/safari@10' -s 'macos 10.13/safari@11' -s 'Linux/chrome@41' -s 'Linux/firefox'; fi
 
     - env: JOB=benchmark