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

webrtc/logging/rtc_event_log/rtc_event_log_unittest_helper.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.
  */
 
@@ skipping 38 matching lines @@
                               size_t total_size);
   static void VerifyPlayoutEvent(const ParsedRtcEventLog& parsed_log,
                                  size_t index,
                                  uint32_t ssrc);
   static void VerifyBweLossEvent(const ParsedRtcEventLog& parsed_log,
                                  size_t index,
                                  int32_t bitrate,
                                  uint8_t fraction_loss,
                                  int32_t total_packets);
 
+  static void VerifyAudioNetworkAdaptation(
+      const ParsedRtcEventLog& parsed_log,
+      size_t index,
+      const AudioNetworkAdaptor::EncoderRuntimeConfig& config);
+
   static void VerifyLogStartEvent(const ParsedRtcEventLog& parsed_log,
                                   size_t index);
   static void VerifyLogEndEvent(const ParsedRtcEventLog& parsed_log,
                                 size_t index);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_LOGGING_RTC_EVENT_LOG_RTC_EVENT_LOG_UNITTEST_HELPER_H_