Cast Extensions API: Factory method for creating a cast session

chrome/renderer/resources/extensions/webrtc_cast_send_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.castSendTransport');
 var webrtc = requireNative('webrtc_natives');
 
 binding.registerCustomHook(function(bindingsAPI, extensionId) {
   var apiFunctions = bindingsAPI.apiFunctions;
 
-  apiFunctions.setHandleRequest('create',
-      function(innerTransportId, track, callback) {
-        webrtc.CreateCastSendTransport(innerTransportId, track, callback);
-  });
   apiFunctions.setHandleRequest('destroy',
       function(transportId) {
         webrtc.DestroyCastSendTransport(transportId);
   });
   apiFunctions.setHandleRequest('getCaps',
       function(transportId) {
         return webrtc.GetCapsCastSendTransport(transportId);
   });
   apiFunctions.setHandleRequest('start',
       function(transportId, params) {
         webrtc.StartCastSendTransport(transportId, params);
   });
   apiFunctions.setHandleRequest('stop',
       function(transportId) {
         webrtc.StopCastSendTransport(transportId);
   });
 });
 
 exports.binding = binding.generate();