Cast Extensions API: Factory method for creating a cast session

chrome/renderer/resources/extensions/webrtc_cast_udp_transport_custom_bindings.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Custom binding for the webrtc custom transport API.
 
 var binding = require('binding').Binding.create('webrtc.castUdpTransport');
 var webrtc = requireNative('webrtc_natives');
 
 binding.registerCustomHook(function(bindingsAPI, extensionId) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
-  apiFunctions.setHandleRequest('create', function(callback) {
-    webrtc.CreateCastUdpTransport(callback);
-  });
   apiFunctions.setHandleRequest('destroy', function(transportId) {
     webrtc.DestroyCastUdpTransport(transportId);
   });
   apiFunctions.setHandleRequest('start',
     function(transportId, remoteParams) {
       webrtc.StartCastUdpTransport(transportId, remoteParams);
   });
 });
 
 exports.binding = binding.generate();