This is useful in tests as it allows overriding the default after construction. It's not intended for use in production (as it can be confusing to readers). Bug: webrtc:10365 Change-Id: I8ac2541f2626e7fddbb61bdae72e9571ce9d7b97 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/130468 Commit-Queue: Sebastian Jansson <srte@webrtc.org> Reviewed-by: Jonas Olsson <jonasolsson@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27389}