port a7581443 (r38231)

  original commit message:
  When we narrow a signed32 comparison to uint8 or uint16 representation,
  we also need to change the condition to unsigned comparisons otherwise
  the comparison will be done on int16/int8 which interprets the narrowed
  bits wrong.

BUG=

Review-Url: https://codereview.chromium.org/2206913002
Cr-Commit-Position: refs/heads/master@{#38274}