Needed for coming cls to be able to use rtc_base/timeutils.h, which shouldn't be included by api/ headers. Bug: webrtc:9719 Change-Id: Ia36c0a9218ad505e1eb4f2d9c26d44d5673c2632 Reviewed-on: https://webrtc-review.googlesource.com/c/112580 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Niels Moller <nisse@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25855}