GitLab

WaitableEvent needs to outlive Thread to avoid a use after
return.

Bug: 751748
Change-Id: I99181842fd81ccad71dba967deebf5d1014affc7
Reviewed-on: https://chromium-review.googlesource.com/600213Reviewed-by: Primiano Tucci <primiano@chromium.org>
Reviewed-by: Gabriel Charette <gab@chromium.org>
Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Hector Dearman <hjd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491851}