GitLab

The condition used in the binary search was wrong. Fixed it and added
a unit test.

Bug: 1000868
Change-Id: Iaf4af1bdfdb88db1082bfae89a3783faed860934
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1800743
Auto-Submit: Saman Sami <samans@chromium.org>
Commit-Queue: Jonathan Ross <jonross@chromium.org>
Reviewed-by: Jonathan Ross <jonross@chromium.org>
Cr-Commit-Position: refs/heads/master@{#696170}