Creating controller manager from config string in audio network adaptor.

webrtc/modules/audio_coding/BUILD.gn

Index: webrtc/modules/audio_coding/BUILD.gn
diff --git a/webrtc/modules/audio_coding/BUILD.gn b/webrtc/modules/audio_coding/BUILD.gn
index 1d16202d728b6a2bd62f7192b5372d3595d289cc..5020939a35d87ee8dee64ab053f76796cec7c226 100644
--- a/webrtc/modules/audio_coding/BUILD.gn
+++ b/webrtc/modules/audio_coding/BUILD.gn
@@ -701,6 +701,12 @@ if (rtc_enable_protobuf) {
     ]
     proto_out_dir = "webrtc/modules/audio_coding/audio_network_adaptor"
   }
+  proto_library("ana_config_proto") {
+    sources = [
+      "audio_network_adaptor/config.proto",
+    ]
+    proto_out_dir = "webrtc/modules/audio_coding/audio_network_adaptor"
+  }
 }
 
 source_set("audio_network_adaptor") {
@@ -733,6 +739,7 @@ source_set("audio_network_adaptor") {
 
   if (rtc_enable_protobuf) {
     deps = [
+      ":ana_config_proto",
       ":ana_debug_dump_proto",
     ]
     defines = [ "WEBRTC_AUDIO_NETWORK_ADAPTOR_DEBUG_DUMP" ]