Instead of using raw pointers. Bug: webrtc:11943 Change-Id: I296fb4f234938126f834b4a6ac5e64d31b191d34 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/331280 Commit-Queue: Per Kjellander <perkj@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/main@{#41370}