Migrate WaitableEvent to enum-based constructor in read_write_lock_unittest.cc

Just added in https://codereview.chromium.org/1988563002

BUG=612843
TBR=danakj@chromium.org
NO_DEPENDENCY_CHECKS=true

Review-Url: https://codereview.chromium.org/2034743002
Cr-Commit-Position: refs/heads/master@{#397428}


CrOS-Libchrome-Original-Commit: 56afd66cf306f84b4d7e2b6b57c59cef789b5851
1 file changed
tree: abe711a6f91b6cb8c2d68a1763de3b3485b546ff
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/