Log audio network adapter decisions in event log.

webrtc/logging/rtc_event_log/rtc_event_log_parser.h

Index: webrtc/logging/rtc_event_log/rtc_event_log_parser.h
diff --git a/webrtc/logging/rtc_event_log/rtc_event_log_parser.h b/webrtc/logging/rtc_event_log/rtc_event_log_parser.h
index 2d66b9054b267516cf0a32ec3c3bb3009ea438e1..8472668d75229762ad6671883f1428fdfe910e8c 100644
--- a/webrtc/logging/rtc_event_log/rtc_event_log_parser.h
+++ b/webrtc/logging/rtc_event_log/rtc_event_log_parser.h
@@ -47,7 +47,8 @@ class ParsedRtcEventLog {
     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.
@@ -123,6 +124,13 @@ class ParsedRtcEventLog {
                              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_;
 };