Add new ANA stats to GetStats() to count the number of actions taken by each controller.

webrtc/audio/audio_send_stream.cc

Index: webrtc/audio/audio_send_stream.cc
diff --git a/webrtc/audio/audio_send_stream.cc b/webrtc/audio/audio_send_stream.cc
index 5bf6f2b8072a4d6199255c65149c6ff072d34723..7d0df4445de102fe93a3417fce5dd22eb13e3640 100644
--- a/webrtc/audio/audio_send_stream.cc
+++ b/webrtc/audio/audio_send_stream.cc
@@ -334,6 +334,16 @@ webrtc::AudioSendStream::Stats AudioSendStream::GetStats() const {
       static_cast<internal::AudioState*>(audio_state_.get());
   stats.typing_noise_detected = audio_state->typing_noise_detected();
 
+  auto audio_encoder_stats = channel_proxy_->GetAudioEncoderStatistics();
+  stats.ana_bitrate_action_counter =
+      audio_encoder_stats.ana_bitrate_action_counter;
+  stats.ana_channel_action_counter =
+      audio_encoder_stats.ana_channel_action_counter;
+  stats.ana_dtx_action_counter = audio_encoder_stats.ana_dtx_action_counter;
+  stats.ana_fec_action_counter = audio_encoder_stats.ana_fec_action_counter;
+  stats.ana_frame_length_action_counter =
+      audio_encoder_stats.ana_frame_length_action_counter;
+
   return stats;
 }