Automatically generate most constructors

client/dom/generated/src/interface/PeerConnection.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
-interface PeerConnection {
+interface PeerConnection default _PeerConnectionFactoryProvider {
+
+  PeerConnection(String serverConfiguration, SignalingCallback signalingCallback);
 
   static final int ACTIVE = 2;
 
   static final int CLOSED = 3;
 
   static final int NEGOTIATING = 1;
 
   static final int NEW = 0;
 
   final MediaStreamList localStreams;
@@ skipping 23 matching lines @@
   bool dispatchEvent(Event event);
 
   void processSignalingMessage(String message);
 
   void removeEventListener(String type, EventListener listener, [bool useCapture]);
 
   void removeStream(MediaStream stream);
 
   void send(String text);
 }