Automatic update from web-platform-testsReplace Arial with Arimo GCS font BUG=787020 TBR=dpranke,asvitkine Change-Id: I38740d1ee9fe621eabd5416f1a87b23a71fbb7e7 Reviewed-on: https://chromium-review.googlesource.com/986812 Reviewed-by: Thomas Anderson <thomasanderson@chromium.org> Commit-Queue: Thomas Anderson <thomasanderson@chromium.org> Cr-Commit-Position: refs/heads/master@{#547246} wpt-commits: 771a209d64f3c07430b5b0090bc61fc31485f0b9 wpt-pr: 10256 wpt-commits: 771a209d64f3c07430b5b0090bc61fc31485f0b9 wpt-pr: 10256