Opus implementation of the AudioDecoderFactoryTemplate API

webrtc/api/audio_codecs/opus/BUILD.gn

Index: webrtc/api/audio_codecs/opus/BUILD.gn
diff --git a/webrtc/api/audio_codecs/opus/BUILD.gn b/webrtc/api/audio_codecs/opus/BUILD.gn
index b82f496a4af6ca7a266536c7bbc495695205de93..c7f7ac82017c0b9d7c0ddd99dc75d94d9ef1e965 100644
--- a/webrtc/api/audio_codecs/opus/BUILD.gn
+++ b/webrtc/api/audio_codecs/opus/BUILD.gn
@@ -40,3 +40,16 @@ rtc_source_set("audio_encoder_opus") {
     "../../../modules/audio_coding:webrtc_opus",
   ]
 }
+
+rtc_static_library("audio_decoder_opus") {
+  sources = [
+    "audio_decoder_opus.cc",
+    "audio_decoder_opus.h",
+  ]
+  deps = [
+    "..:audio_codecs_api",
+    "../../..:webrtc_common",
+    "../../../base:rtc_base_approved",
+    "../../../modules/audio_coding:webrtc_opus",
+  ]
+}