057ce1de45
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=sakal@webrtc.org Bug: None Change-Id: Ib01eb9ef7b3b76c0f55890d7ea1b8dfcd30f0617 Reviewed-on: https://webrtc-review.googlesource.com/23607 Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Commit-Queue: Oskar Sundbom <ossu@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20845}