BUG=
TEST=win clang bots build

Change-Id: I802be2e72a884e50cf13120d3cd9c76a8f8eb86f
Reviewed-on: https://chromium-review.googlesource.com/298253Tested-by: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>