Perf-sheriffs please revert if this causes any performance regressions.

BUG=

Change-Id: I39075482f3c85d69407d6d8e5643d94c1a4425c2
Reviewed-on: https://chromium-review.googlesource.com/461117Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#51470}