To be able to generate candidates the configuration must support at least one of the following: * enable acknowledged bitrate as a candidate, * enable delay based bwe as a candidate, or * enabled a candidate factor other than 1.0. If none of the above is supported then the configuration will be marked as invalid and thus the `LossBasedBweV2` will be disabled. Bug: webrtc:12707 Change-Id: I836ee59a396497f577b34fe0650ffc79f6cadc31 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/235210 Reviewed-by: Per Kjellander <perkj@webrtc.org> Reviewed-by: Ying Wang <yinwa@webrtc.org> Commit-Queue: Fanny Linderborg <linderborg@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35239}