GitLab

Ping the watchdog thread for Gpu_main during strike deletion to avoid
hangs on mac.

R=piman@chromium.org

Bug: 969623
Change-Id: I36faa00db502e1b1cf0bbda262e5aaadd96f2cbe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1641602
Auto-Submit: Khushal <khushalsagar@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Commit-Queue: Khushal <khushalsagar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#665660}