Add mozRTCPeerConnection to JS names.

sdk/lib/html/dart2js/html_dart2js.dart

 /// The Dart HTML library.
 library dart.dom.html;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev' hide Symbol;
 import 'dart:html_common';
 import 'dart:indexed_db';
 import 'dart:isolate';
 import 'dart:json' as json;
@@ skipping 17895 matching lines @@
 }
 // Copyright (c) 2013, 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.
 
 
 @DomName('RTCPeerConnection')
 @SupportedBrowser(SupportedBrowser.CHROME)
 @Experimental
 // http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCPeerConnection
-class RtcPeerConnection extends EventTarget native "RTCPeerConnection" {
+class RtcPeerConnection extends EventTarget native "RTCPeerConnection,mozRTCPeerConnection" {
   factory RtcPeerConnection(Map rtcIceServers, [Map mediaConstraints]) {
     var constructorName = JS('RtcPeerConnection', 'window[#]',
         '${Device.propertyPrefix}RTCPeerConnection');
     if (mediaConstraints != null) {
       return JS('RtcPeerConnection', 'new #(#,#)', constructorName,
           convertDartToNative_SerializedScriptValue(rtcIceServers),
           convertDartToNative_SerializedScriptValue(mediaConstraints));
     } else {
       return JS('RtcPeerConnection', 'new #(#)', constructorName,
           convertDartToNative_SerializedScriptValue(rtcIceServers));
@@ skipping 11368 matching lines @@
       _position = nextPosition;
       return true;
     }
     _current = null;
     _position = _array.length;
     return false;
   }
 
   T get current => _current;
 }