GitLab

Comparison of a pointer difference to a size_t cause the compiler
to whine about the different signs: 'long' and 'unsigned long' in
this case. Fix that by using ptrdff_t for these comparisons.

No change in behavior, no new tests.

Tbr: mtklein@chromium.org
Bug: 796470
Change-Id: Ie585ba45f1e09f31f7d4cf48c41f2378a1b0808b
Reviewed-on: https://chromium-review.googlesource.com/836291
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#525312}