The tests are currently always failing on Mac.
Rebaseline and see if there is a passing image now,
or at least get it passing sometimes.

TBR: wangxianzhu@chromium.org

Bug: 900431
Change-Id: I57cdc0a31ae32d89d73b18067fa7c9545198579c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2522919Reviewed-by: Stephen Chenney <schenney@chromium.org>
Reviewed-by: Xianzhu Wang <wangxianzhu@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825147}