Tests should pass with npm5
Tests should pass with npm5

I can't run tests on my macOS or my linux because of electron-chromedriver not found. I think it is because of npm5 so adding it as a dep

Fix #9628

Auditors: da39a3ee5e6b4b0d3255bfef95601890afd80709@cezaraugusto

luixxiul/browser-laptop,timborden/browser-laptop,diasdavid/browser-laptop,luixxiul/browser-laptop,luixxiul/browser-laptop,luixxiul/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop,diasdavid/browser-laptop,timborden/browser-laptop