5e1a7496bb
Changes places where we explicitly construct an Optional to instead use nullopt or the requisite value type only. This CL was uploaded by git cl split. R=tina.legrand@webrtc.org Bug: None Change-Id: Iea6f04db7c1f92fe9da2c855bb60ad2f70c371d3 Reviewed-on: https://webrtc-review.googlesource.com/23615 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Oskar Sundbom <ossu@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20915}