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

webrtc/media/base/mediachannel.h

 /*
  *  Copyright (c) 2004 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 623 matching lines @@
   double total_input_energy;
   double total_input_duration;
   float aec_quality_min;
   int echo_delay_median_ms;
   int echo_delay_std_ms;
   int echo_return_loss;
   int echo_return_loss_enhancement;
   float residual_echo_likelihood;
   float residual_echo_likelihood_recent_max;
   bool typing_noise_detected;
+  rtc::Optional<int> ana_bitrate_action_counter;
+  rtc::Optional<int> ana_channel_action_counter;
+  rtc::Optional<int> ana_dtx_action_counter;
+  rtc::Optional<int> ana_fec_action_counter;
+  rtc::Optional<int> ana_frame_length_action_counter;

[hbos, 2017/09/04 08:49:54]

Should there be one field that is ANAStats instead of one of each of its fields?

[ivoc, 2017/09/04 15:48:01]

Sounds like a good idea, done.

 };
 
 struct VoiceReceiverInfo : public MediaReceiverInfo {
   VoiceReceiverInfo()
       : ext_seqnum(0),
         jitter_ms(0),
         jitter_buffer_ms(0),
         jitter_buffer_preferred_ms(0),
         delay_estimate_ms(0),
         audio_level(0),
@@ skipping 587 matching lines @@
                    const char*,
                    size_t> SignalDataReceived;
   // Signal when the media channel is ready to send the stream. Arguments are:
   //     writable(bool)
   sigslot::signal1<bool> SignalReadyToSend;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_MEDIACHANNEL_H_