
Implicitly retaining self pointer (assuming this is intended behavior) causes compiler warning `-Wimplicit-retain-self`. We should do it explicitly. Bug: webrtc:9971 Change-Id: If77a67168d8a65ced78d5119b9a7332391d20bc9 Reviewed-on: https://webrtc-review.googlesource.com/c/109641 Commit-Queue: Jiawei Ou <ouj@fb.com> Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Reviewed-by: Tommi <tommi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25609}