Revert of Modify PeerConnection for end-to-end QuicDataChannel usage

webrtc/api/quicdatatransport_unittest.cc

Index: webrtc/api/quicdatatransport_unittest.cc
diff --git a/webrtc/api/quicdatatransport_unittest.cc b/webrtc/api/quicdatatransport_unittest.cc
index 975898ef1f886f7cb93f95fc45c673d660accb61..d668c55b0bfbb732ced49deeebdaa826d4641dd2 100644
--- a/webrtc/api/quicdatatransport_unittest.cc
+++ b/webrtc/api/quicdatatransport_unittest.cc
@@ -64,9 +64,7 @@
 class QuicDataTransportPeer {
  public:
   QuicDataTransportPeer()
-      : quic_data_transport_(rtc::Thread::Current(),
-                             rtc::Thread::Current(),
-                             rtc::Thread::Current()),
+      : quic_data_transport_(rtc::Thread::Current(), rtc::Thread::Current()),
         ice_transport_channel_(new FakeTransportChannel("data", 0)),
         quic_transport_channel_(ice_transport_channel_) {
     ice_transport_channel_->SetAsync(true);
@@ -82,6 +80,8 @@
 
   // Connects |ice_transport_channel_| to that of the other peer.
   void Connect(QuicDataTransportPeer* other_peer) {
+    ice_transport_channel_->Connect();
+    other_peer->ice_transport_channel_->Connect();
     ice_transport_channel_->SetDestination(other_peer->ice_transport_channel_);
   }