This change adds support for renegotiating the frame rate via pipewire. Bug: chromium:1291247 Change-Id: Iacd4a3c924900839a8db75a50b448df6c48c83ab Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/291460 Commit-Queue: Salman Malik <salmanmalik@chromium.org> Reviewed-by: Alexander Cooper <alcooper@chromium.org> Cr-Commit-Position: refs/heads/main@{#39216}