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Two flags are still needed until at least M-79. I now maintain what they
guard.

Bug: None
Change-Id: If5d7c766b29c3e3ddeeeee31c7b4cb8e25a7c7ad
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1776037Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Friedrich [CET] <fhorschig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#691999}