This is required for jumbo builds to work before the stable jumbo chunk
algorithm[*] can reland.

[*] https://chromium-review.googlesource.com/c/chromium/src/+/1102218

Bug: chromium:856964, chromium:782863
Change-Id: Ibbe0994980eb554acd4e1557e733d07526a90608
Reviewed-on: https://chromium-review.googlesource.com/1117059Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Mostyn Bramley-Moore <mostynb@vewd.com>
Cr-Commit-Position: refs/heads/master@{#54070}