Remove deprecated PeerConnectionObserver::OnStateChange and OnIceComplete

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 1372 matching lines @@
   }
   ice_gathering_state_ = new_state;
   observer_->OnIceGatheringChange(ice_gathering_state_);
 }
 
 void PeerConnection::OnIceCandidate(const IceCandidateInterface* candidate) {
   RTC_DCHECK(signaling_thread()->IsCurrent());
   observer_->OnIceCandidate(candidate);
 }
 
-void PeerConnection::OnIceComplete() {
-  RTC_DCHECK(signaling_thread()->IsCurrent());
-  observer_->OnIceComplete();
-}
-
 void PeerConnection::OnIceConnectionReceivingChange(bool receiving) {
   RTC_DCHECK(signaling_thread()->IsCurrent());
   observer_->OnIceConnectionReceivingChange(receiving);
 }
 
 void PeerConnection::ChangeSignalingState(
     PeerConnectionInterface::SignalingState signaling_state) {
   signaling_state_ = signaling_state;
   if (signaling_state == kClosed) {
     ice_connection_state_ = kIceConnectionClosed;
     observer_->OnIceConnectionChange(ice_connection_state_);
     if (ice_gathering_state_ != kIceGatheringComplete) {
       ice_gathering_state_ = kIceGatheringComplete;
       observer_->OnIceGatheringChange(ice_gathering_state_);
     }
   }
   observer_->OnSignalingChange(signaling_state_);
-  observer_->OnStateChange(PeerConnectionObserver::kSignalingState);
 }
 
 void PeerConnection::OnAudioTrackAdded(AudioTrackInterface* track,
                                        MediaStreamInterface* stream) {
   auto sender = FindSenderForTrack(track);
   if (sender != senders_.end()) {
     // We already have a sender for this track, so just change the stream_id
     // so that it's correct in the next call to CreateOffer.
     (*sender)->set_stream_id(stream->label());
     return;
@@ skipping 662 matching lines @@
 DataChannel* PeerConnection::FindDataChannelBySid(int sid) const {
   for (const auto& channel : sctp_data_channels_) {
     if (channel->id() == sid) {
       return channel;
     }
   }
   return nullptr;
 }
 
 }  // namespace webrtc