Prevent a thread startup race in ScheduleWorkTest which causes a nullptr dereference of a message pump.

Review URL: https://codereview.chromium.org/1283543007

Cr-Commit-Position: refs/heads/master@{#342741}


CrOS-Libchrome-Original-Commit: 7fc519fa5164f2eb7c718de2d0ed7500e11fc690
1 file changed
tree: 1c6e0877c5f86e38310d42e3b64a36695a9c8223
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/