For example, zero rtt may be reported to: BitrateControllerImpl::OnReceivedRtcpReceiverReport: - SendSideBandwidthEstimation::UpdateReceiverBlock - SendSideBandwidthEstimation::UpdateUmaStats BitrateAllocator::OnNetworkChanged: - ProtectionBitrateCalculator::SetTargetRates Re-add check that was removed in https://codereview.webrtc.org/2422063002. BUG=webrtc:6692 Review-Url: https://codereview.webrtc.org/2552883010 Cr-Commit-Position: refs/heads/master@{#15486}