Cleanup: Remove duplicated functions

talk/app/webrtc/peerconnection.cc

 /*
  * 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 694 matching lines @@
 void PeerConnection::RegisterUMAObserver(UMAObserver* observer) {
   uma_observer_ = observer;
 
   if (session_) {
     session_->set_metrics_observer(uma_observer_);
   }
 
   // Send information about IPv4/IPv6 status.
   if (uma_observer_ && port_allocator_) {
     if (port_allocator_->flags() & cricket::PORTALLOCATOR_ENABLE_IPV6) {
-      uma_observer_->IncrementCounter(kPeerConnection_IPv6);
+      uma_observer_->IncrementEnumCounter(
+          kEnumCounterAddressFamily, kPeerConnection_IPv6,
+          kPeerConnectionAddressFamilyCounter_Max);
     } else {
-      uma_observer_->IncrementCounter(kPeerConnection_IPv4);
+      uma_observer_->IncrementEnumCounter(
+          kEnumCounterAddressFamily, kPeerConnection_IPv4,
+          kPeerConnectionAddressFamilyCounter_Max);
     }
   }
 }
 
 const SessionDescriptionInterface* PeerConnection::local_description() const {
   return session_->local_description();
 }
 
 const SessionDescriptionInterface* PeerConnection::remote_description() const {
   return session_->remote_description();
@@ skipping 174 matching lines @@
     if (ice_gathering_state_ != kIceGatheringComplete) {
       ice_gathering_state_ = kIceGatheringComplete;
       observer_->OnIceGatheringChange(ice_gathering_state_);
     }
   }
   observer_->OnSignalingChange(signaling_state_);
   observer_->OnStateChange(PeerConnectionObserver::kSignalingState);
 }
 
 }  // namespace webrtc