
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=kwiberg@webrtc.org Bug: None Change-Id: I30f47ec9b6dbef216ee061a96fad8ca14c041bb5 Reviewed-on: https://webrtc-review.googlesource.com/23566 Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Commit-Queue: Oskar Sundbom <ossu@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20711}