Reason for revert:
performance bots were unchanged by the original revert

Original issue's description:
> revert r25736
>
> R=bmeurer@chromium.org
>
> BUG=

TBR=bmeurer@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/787183003

Cr-Commit-Position: refs/heads/master@{#25801}