message: Use headless Chrome for Protractor tests
  (see https://github.com/angular/protractor/blob/master/docs/browser-setup.md)
diff: @@ -10,7 +10,10 @@ exports.config = {
  ],
  capabilities: {
  - 'browserName': 'chrome'
  + browserName: 'chrome',
  + chromeOptions: {
  + args: [ "--headless", "--disable-gpu", "--window-size=800,600" ]
  + }
  },
  baseUrl: 'http://localhost:3000',
  