GitLab

GPU watchdog V2 has been enabled for months. It's time to clean up V1.

Merge class GpuWatchdogThreadImplV2 and class GpuWatchdogThread, and use
GpuWatchdogThread as default.

Bug: 949839
Change-Id: Ic0d784bf4f3bcf79e60b71389c42a824429f83e5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2455366Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: Maggie Chen <magchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#814743}