There are cases for each of these getters where other code later takes
a reference to the passed object, meaning that these getters should be
returning a refptr. To prevent additional overhead from places that
simply access the getter to call additional methods without needing to
worry about taking a ref, the return values are converted to const refs.
Bug: webrtc:13465
Change-Id: Ib27969c7f5ef9d6aadf3c95ac171ae6e778cdbfa
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/239720
Reviewed-by: Mark Foltz <mfoltz@chromium.org>
Commit-Queue: Alexander Cooper <alcooper@chromium.org>
Cr-Commit-Position: refs/heads/main@{#35465}
7bafbd6c8c