GitLab

This is a reland of 4be5a8c2

Fix: Disabled PGO for the LaCrOS builds as we don't know if it's what we
want (vs AFDO). If we decide to use PGO for LaCrOS then we'll do it in a
separate CL.

Original change's description:
> Switch the Linux official build to PGO (from AFDO).
>
> This switches the Linux official build from AFDO to PGO. This yield some
> 3-4% performance gains on Speedometer and help unifying our desktop
> build configurations, PGO is already used on Win and Mac. The PGO
> profiles for Linux are generated by a continuous bot and are rolled in
> Chrome once or twice per day (AFDO is based on the Android profiles).
>
> This increases binary size by ~3-4%.
>
> Bug: 1111437
> Change-Id: I565eb336fa5ad9480e99808ed49246634255b82d
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2404620
> Commit-Queue: Sébastien Marchand <sebmarchand@chromium.org>
> Reviewed-by: Nico Weber <thakis@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#809040}

Bug: 1111437
Change-Id: I3eb551007d66edb4c9ff326c801dda7e0ddd593c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2424669Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809803}