message: Improve readability in GoogCcNetworkController::OnSentPacket
  Cr-Commit-Position: refs/heads/master@{#29363}
diff: @@ -250,14 +250,10 @@ NetworkControlUpdate GoogCcNetworkController::OnSentPacket(
  TimeDelta::Zero());
  }
  bandwidth_estimation_->OnSentPacket(sent_packet);
  - bool network_changed = false;
  if (congestion_window_pushback_controller_) {
  congestion_window_pushback_controller_->UpdateOutstandingData(
  sent_packet.data_in_flight.bytes());
  - network_changed = true;
  - }
  - if (network_changed) {
  NetworkControlUpdate update;
  MaybeTriggerOnNetworkChanged(&update, sent_packet.send_time);
  return update;
  