Update mac sizes expectations.

BUG=523950
TBR=henrika@chromium.org

Review URL: https://codereview.chromium.org/1313643002

Cr-Original-Commit-Position: refs/heads/master@{#345070}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: a5cdcd808146adbab79fc49714d9df49fff8fb29
1 file changed