Revert of Cleanup sign checking in safe math code (patchset #1 id:1 of https://codereview.chromium.org/2564493003/ )
Reason for revert:
This change was not a performance improvement.
Original issue's description:
> Cleanup sign checking in safe math code
>
> Signed comparison is less code and matches the optimal compiler
> heuristics better than masking.
>
> TBR=scottmg
> NOTRY=true
>
> Committed: https://crrev.com/99bfa52d9dea53984ae4da5ee44eff0002928453
> Cr-Commit-Position: refs/heads/master@{#437342}
TBR=scottmg@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
Review-Url: https://codereview.chromium.org/2563003003
Cr-Commit-Position: refs/heads/master@{#437580}
2 files changed
