It is a public interface and must be visible to allow tests to include the header file. Bug: none Change-Id: I4e6322c622f62c018b274b751e2c395eed7816e4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/346520 Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org> Commit-Queue: Jakob Ivarsson <jakobi@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Auto-Submit: Per Kjellander <perkj@webrtc.org> Cr-Commit-Position: refs/heads/main@{#42027}