This allows sending the full BitrateAllocationUpdate to the encoder.
This will be used in a later CL to use the link capacity field in the
update to control the Opus decoder.
Bug: webrtc:9718
Change-Id: I1c228cc318c7f9f1b0fec232e27732177b80705a
Reviewed-on: https://webrtc-review.googlesource.com/c/111509
Commit-Queue: Sebastian Jansson <srte@webrtc.org>
Reviewed-by: Oskar Sundbom <ossu@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25739}