Set oom_score_adj of chrome processes directly

Setting oom_score_adj directly is faster and doesn't have to involve
debugd when ARC++ is disabled.

Bug: 868249
Change-Id: Ifeda6cd1d393c85f373928aafadd4ec3d3941a92
Reviewed-on: https://chromium-review.googlesource.com/1152751
Reviewed-by: Cheng-Yu Lee <cylee@chromium.org>
Commit-Queue: Vovo Yang <vovoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#578987}
1 file changed