Instantly pass network changes to controllers in audio network adaptor.

webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h

Index: webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
index 801a9ccc59bceb788330ef5e2c12ac6da9c6de42..1da0d662833821061fd7ee45f0a41dc45a71fca9 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/audio_network_adaptor_impl.h
@@ -59,6 +59,8 @@ class AudioNetworkAdaptorImpl final : public AudioNetworkAdaptor {
  private:
   void DumpNetworkMetrics();
 
+  void UpdateNetworkMetrics(const Controller::NetworkMetrics& network_metrics);
+
   const Config config_;
 
   std::unique_ptr<ControllerManager> controller_manager_;