R=yangguo@chromium.org,dgozman@chromium.org

Bug: none
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I31667b3d5f39db9d899d58acd5205a9c34e570db
Reviewed-on: https://chromium-review.googlesource.com/1005985
Commit-Queue: Aleksey Kozyatinskiy <kozyatinskiy@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Reviewed-by: Dmitry Gozman <dgozman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52594}