Fire a signal when the transport channel state changes

webrtc/p2p/quic/quictransportchannel.cc

Index: webrtc/p2p/quic/quictransportchannel.cc
diff --git a/webrtc/p2p/quic/quictransportchannel.cc b/webrtc/p2p/quic/quictransportchannel.cc
index 968faee7bd1ba4b82a9ebb52cb5aee24f806b036..6aafa9e3dbd293477c4aa78aee5ba888841ee344 100644
--- a/webrtc/p2p/quic/quictransportchannel.cc
+++ b/webrtc/p2p/quic/quictransportchannel.cc
@@ -145,8 +145,8 @@ QuicTransportChannel::QuicTransportChannel(TransportChannelImpl* channel)
                                       &QuicTransportChannel::OnRouteChange);
   channel_->SignalSelectedCandidatePairChanged.connect(
       this, &QuicTransportChannel::OnSelectedCandidatePairChanged);
-  channel_->SignalConnectionRemoved.connect(
-      this, &QuicTransportChannel::OnConnectionRemoved);
+  channel_->SignalStateChanged.connect(
+      this, &QuicTransportChannel::OnChannelStateChanged);
   channel_->SignalReceivingState.connect(
       this, &QuicTransportChannel::OnReceivingState);
 
@@ -401,9 +401,10 @@ void QuicTransportChannel::OnSelectedCandidatePairChanged(
                                      last_sent_packet_id);
 }
 
-void QuicTransportChannel::OnConnectionRemoved(TransportChannelImpl* channel) {
+void QuicTransportChannel::OnChannelStateChanged(
+    TransportChannelImpl* channel) {
   ASSERT(channel == channel_.get());
-  SignalConnectionRemoved(this);
+  SignalStateChanged(this);
 }
 
 bool QuicTransportChannel::MaybeStartQuic() {