Reland of "Log audio network adapter decisions in event log."

webrtc/logging/rtc_event_log/rtc_event_log_parser.h

 /*
  *  Copyright (c) 2016 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.
  */
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_RTC_EVENT_LOG_PARSER_H_
@@ skipping 29 matching lines @@
     LOG_START = 1,
     LOG_END = 2,
     RTP_EVENT = 3,
     RTCP_EVENT = 4,
     AUDIO_PLAYOUT_EVENT = 5,
     BWE_PACKET_LOSS_EVENT = 6,
     BWE_PACKET_DELAY_EVENT = 7,
     VIDEO_RECEIVER_CONFIG_EVENT = 8,
     VIDEO_SENDER_CONFIG_EVENT = 9,
     AUDIO_RECEIVER_CONFIG_EVENT = 10,
-    AUDIO_SENDER_CONFIG_EVENT = 11
+    AUDIO_SENDER_CONFIG_EVENT = 11,
+    AUDIO_NETWORK_ADAPTATION_EVENT = 16
   };
 
   // Reads an RtcEventLog file and returns true if parsing was successful.
   bool ParseFile(const std::string& file_name);
 
   // Reads an RtcEventLog from a string and returns true if successful.
   bool ParseString(const std::string& s);
 
   // Reads an RtcEventLog from an istream and returns true if successful.
   bool ParseStream(std::istream& stream);
@@ skipping 55 matching lines @@
   // Reads bitrate, fraction loss (as defined in RFC 1889) and total number of
   // expected packets from the BWE event at |index| and stores the values in
   // the corresponding output parameters. The output parameters can be set to
   // nullptr if those values aren't needed.
   // NB: The packet must have space for at least IP_PACKET_SIZE bytes.
   void GetBwePacketLossEvent(size_t index,
                              int32_t* bitrate,
                              uint8_t* fraction_loss,
                              int32_t* total_packets) const;
 
+  // Reads a audio network adaptation event to a (non-NULL)
+  // AudioNetworkAdaptor::EncoderRuntimeConfig struct. Only the fields that are
+  // stored in the protobuf will be written.
+  void GetAudioNetworkAdaptation(
+      size_t index,
+      AudioNetworkAdaptor::EncoderRuntimeConfig* config) const;
+
  private:
   std::vector<rtclog::Event> events_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_LOGGING_RTC_EVENT_LOG_RTC_EVENT_LOG_PARSER_H_