Revert of Remove various IDs

modules/audio_coding/include/audio_coding_module.h

Index: modules/audio_coding/include/audio_coding_module.h
diff --git a/modules/audio_coding/include/audio_coding_module.h b/modules/audio_coding/include/audio_coding_module.h
index 63af3ab29855e6bc8a93c69388ce6fe6ed3df716..944ad604f5e6e3b562ec2c21b22fee02977f4cd3 100644
--- a/modules/audio_coding/include/audio_coding_module.h
+++ b/modules/audio_coding/include/audio_coding_module.h
@@ -70,6 +70,7 @@
     Config(const Config&);
     ~Config();
 
+    int id;
     NetEq::Config neteq_config;
     Clock* clock;
     rtc::scoped_refptr<AudioDecoderFactory> decoder_factory;
@@ -82,8 +83,8 @@
   // injected into ACM. ACM will take the ownership of the object clock and
   // delete it when destroyed.
   //
-  static AudioCodingModule* Create();
-  static AudioCodingModule* Create(Clock* clock);
+  static AudioCodingModule* Create(int id);
+  static AudioCodingModule* Create(int id, Clock* clock);
   static AudioCodingModule* Create(const Config& config);
   virtual ~AudioCodingModule() = default;