Distinguish instances of ACM1 from ACM2 by a version string. This is fpr testing purposes and will be removed when the experiment is done and ACM1 is fade out.

BUG=
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/4069006

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5161 4adac7df-926f-26a2-2b94-8c16560cd09d

webrtc/modules/audio_coding/main/source/audio_coding_module_impl.cc

@@ -3026,6 +3026,10 @@ void AudioCodingModuleImpl::DisableNack() {
   nack_enabled_ = false;
 }
 
+const char* AudioCodingModuleImpl::Version() const {
+  return kLegacyAcmVersion;
+}
+
 }  // namespace acm1
 
 }  // namespace webrtc

webrtc/modules/audio_coding/main/source/audio_coding_module_impl.h

@@ -40,12 +40,11 @@ class ACMGenericCodec;
 
 class AudioCodingModuleImpl : public AudioCodingModule {
  public:
-  // Constructor
   AudioCodingModuleImpl(const int32_t id, Clock* clock);
-
-  // Destructor
   ~AudioCodingModuleImpl();
 
+  virtual const char* Version() const;
+
   // Change the unique identifier of this object.
   virtual int32_t ChangeUniqueId(const int32_t id);