
instead of relying on optional.h to included these 2 headers. Bug: webrtc:9078 Change-Id: I7a4b3facd81690b8f107640487e129986c1f5ff6 Reviewed-on: https://webrtc-review.googlesource.com/68602 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22803}