GitLab

instead of new layer. This will be used to address performance
related issue.

Bug: None
Test: covered by unittest

Change-Id: I3b6b0bfdd8ab4fb11b21fd7b84f677169023bfe9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2560549
Commit-Queue: Mitsuru Oshima <oshima@chromium.org>
Reviewed-by: Sammie Quon <sammiequon@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833097}