GTTF: Support running browser tests in parallel

This still defaults to serialized execution while I perform more testing.

BUG=236893
R=sky@chromium.org

Review URL: https://codereview.chromium.org/23757033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@224200 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 48b7560b712070509261479958dc856e84c4268d
5 files changed
tree: f0de5970efc98fdf0e69ee3f1faf30e0f0ee8f1a
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. ipc/
  6. mojo/
  7. testing/
  8. third_party/
  9. ui/