build: use chrome not headless

Author: germanattanasio

.travis.yml

@@ -3,8 +3,9 @@ node_js: 10
 sudo: required
 services:
   - xvfb
-before_install:
-- export CHROME_BIN=chromium-browser
+addons:
+  firefox: "57.0"
+  chrome: "stable"
 script:
 - npm run build
 - npm test

karma.conf.js

@@ -52,7 +52,7 @@ module.exports = function(config) {
     // there's a handy list of chrome flags at
     customLaunchers: {
       ChromeWithPrerecordedMic: {
-        base: 'ChromeHeadless',
+        base: 'Chrome',
         // --no-sandbox is required for travis-ci
         flags: [
           '--use-fake-device-for-media-stream',