Resolve cyclic dependency between audio network adaptor and event log api

webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h

Index: webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
diff --git a/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h b/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
index 14ddbca0a781e2bfd257843291d185540739e95c..5dc0849f420d17e7f444a13729d883033111e83e 100644
--- a/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
+++ b/webrtc/modules/audio_coding/audio_network_adaptor/include/audio_network_adaptor.h
@@ -15,26 +15,27 @@
 
 namespace webrtc {
 
+struct AudioEncoderRuntimeConfig {
+  AudioEncoderRuntimeConfig();
+  AudioEncoderRuntimeConfig(const AudioEncoderRuntimeConfig& other);
+  ~AudioEncoderRuntimeConfig();
+  rtc::Optional<int> bitrate_bps;
+  rtc::Optional<int> frame_length_ms;
+  rtc::Optional<float> uplink_packet_loss_fraction;
+  rtc::Optional<bool> enable_fec;
+  rtc::Optional<bool> enable_dtx;
+
+  // Some encoders can encode fewer channels than the actual input to make
+  // better use of the bandwidth. |num_channels| sets the number of channels
+  // to encode.
+  rtc::Optional<size_t> num_channels;
+};
+
 // An AudioNetworkAdaptor optimizes the audio experience by suggesting a
 // suitable runtime configuration (bit rate, frame length, FEC, etc.) to the
 // encoder based on network metrics.
 class AudioNetworkAdaptor {
  public:
-  struct EncoderRuntimeConfig {
-    EncoderRuntimeConfig();
-    EncoderRuntimeConfig(const EncoderRuntimeConfig& other);
-    ~EncoderRuntimeConfig();
-    rtc::Optional<int> bitrate_bps;
-    rtc::Optional<int> frame_length_ms;
-    rtc::Optional<float> uplink_packet_loss_fraction;
-    rtc::Optional<bool> enable_fec;
-    rtc::Optional<bool> enable_dtx;
-
-    // Some encoders can encode fewer channels than the actual input to make
-    // better use of the bandwidth. |num_channels| sets the number of channels
-    // to encode.
-    rtc::Optional<size_t> num_channels;
-  };
 
   virtual ~AudioNetworkAdaptor() = default;
 
@@ -49,7 +50,7 @@ class AudioNetworkAdaptor {
 
   virtual void SetOverhead(size_t overhead_bytes_per_packet) = 0;
 
-  virtual EncoderRuntimeConfig GetEncoderRuntimeConfig() = 0;
+  virtual AudioEncoderRuntimeConfig GetEncoderRuntimeConfig() = 0;
 
   virtual void StartDebugDump(FILE* file_handle) = 0;