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This is essentially a revert of crrev.com/c/1082267 (undoing the actual
1-line change from that CL, but keeping the comment improvements).
This is a temporary measure to investigate crbug.com/1120899.

Bug: 1120899, 1082267
Change-Id: I7761418c038824218a7fc36b325f1b364f7bbbe5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2401460
Commit-Queue: Marc Treib <treib@chromium.org>
Reviewed-by: Mikel Astiz <mastiz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805489}