void ConnectionManagerImpl::ActiveStream::onBelowWriteBufferLowWatermark() {
  ENVOY_STREAM_LOG(debug, "Enabling upstream stream due to downstream stream watermark.", *this);
  filter_manager_.callLowWatermarkCallbacks();
}
void ConnectionManagerImpl::ActiveStream::onBelowWriteBufferLowWatermark() {
  ENVOY_STREAM_LOG(debug, "Enabling upstream stream due to downstream stream watermark.", *this);
  filter_manager_.callLowWatermarkCallbacks();
}