sources:
  "icons.tar.bz2": a835954af164bf38f8ea4ea80608839bed7800a3
  gn-binaries.tar.xz: 312d6a6addabeed98f3357d34dbc87ccfd43026b
  depot_tools.tar.xz: 082b7f9a4dfa7eb03900755b4866aef2d73543a5
  chromium-35.0.1916.114.tar.xz: 4e0b101ebb906decbcc33a9a1c80cbed0b0646d7