`stream_` will always be non-null when SetRecvParameters is called.
For the flexfec stream, the condition won't happen since `IsCompleteAndEnabled` doesn't consider `rtp.extension` state.
As is, this code just adds apparent complexity to SetRecvParameters.
Bug: none
Change-Id: Ie2386905bd8a338669629c7bc5f0abb39bd36d22
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/269245
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Auto-Submit: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37597}
6b9302eb59