GitLab

Implement the OOM Kills histogram by checking the oom_kill field in
/proc/vmstat instead of monitoring the kernel log.

Bug: 1124182
Change-Id: I8e992933e394104658ac01c4f123ece411f7bc26
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2402778Reviewed-by: Cheng-Yu Lee <cylee@chromium.org>
Reviewed-by: Achuith Bhandarkar <achuith@chromium.org>
Commit-Queue: Kuo-Hsin Yang <vovoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806559}