Cleanup: Remove duplicated functions

talk/app/webrtc/peerconnectioninterface.h

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 109 matching lines @@
 class StatsObserver : public rtc::RefCountInterface {
  public:
   virtual void OnComplete(const StatsReports& reports) = 0;
 
  protected:
   virtual ~StatsObserver() {}
 };
 
 class MetricsObserverInterface : public rtc::RefCountInterface {
  public:
-  // TODO(guoweis): Remove this function once IncrementEnumCounter gets into
-  // chromium. IncrementCounter only deals with one type of enumeration counter,
-  // i.e. PeerConnectionAddressFamilyCounter. Instead of creating a function for
-  // each enum type, IncrementEnumCounter is generalized with the enum type
-  // parameter.
-  virtual void IncrementCounter(PeerConnectionAddressFamilyCounter type) {}
 
   // |type| is the type of the enum counter to be incremented. |counter|
   // is the particular counter in that type. |counter_max| is the next sequence
   // number after the highest counter.
   virtual void IncrementEnumCounter(PeerConnectionEnumCounterType type,
                                     int counter,
                                     int counter_max) {}
 
   virtual void AddHistogramSample(PeerConnectionMetricsName type,
                                   int value) = 0;
@@ skipping 458 matching lines @@
 CreatePeerConnectionFactory(
     rtc::Thread* worker_thread,
     rtc::Thread* signaling_thread,
     AudioDeviceModule* default_adm,
     cricket::WebRtcVideoEncoderFactory* encoder_factory,
     cricket::WebRtcVideoDecoderFactory* decoder_factory);
 
 }  // namespace webrtc
 
 #endif  // TALK_APP_WEBRTC_PEERCONNECTIONINTERFACE_H_