BUG=chromium:919394

Change-Id: I99d0b557f8d52c87c4422cd971a43211e5d5e849
Reviewed-on: https://chromium-review.googlesource.com/c/1425198Reviewed-by: Dan Elphick <delphick@chromium.org>
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58964}