sources:
  chromium-66.0.3359.181.tar.xz: 5c3f055f227666ecadbc5d0e3ba999b4ffb318d1
  depot_tools.tar.xz: 082b7f9a4dfa7eb03900755b4866aef2d73543a5
  icons.tar.bz2: a835954af164bf38f8ea4ea80608839bed7800a3
  new-system-icons.tar.xz: 89339b8b3b05359a8745ed7968fe148902a2fa28