[MR] Add description field to MediaSink.

extensions/renderer/resources/media_router_bindings.js

 // Copyright 2015 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.
 
 var mediaRouter;
 
 define('media_router_bindings', [
     'mojo/public/js/bindings',
     'mojo/public/js/core',
     'content/public/renderer/service_provider',
@@ skipping 11 matching lines @@
   'use strict';
 
   /**
    * Converts a media sink to a MediaSink Mojo object.
    * @param {!MediaSink} sink A media sink.
    * @return {!mediaRouterMojom.MediaSink} A Mojo MediaSink object.
    */
   function sinkToMojo_(sink) {
     return new mediaRouterMojom.MediaSink({
       'name': sink.friendlyName,
+      'description': sink.description,
       'sink_id': sink.id,
       'icon_type': sinkIconTypeToMojo(sink.iconType),
     });
   }
 
   /**
    * Converts a media sink's icon type to a MediaSink.IconType Mojo object.
    * @param {!MediaSink.IconType} type A media sink's icon type.
    * @return {!mediaRouterMojom.MediaSink.IconType} A Mojo MediaSink.IconType
    *     object.
@@ skipping 549 matching lines @@
   };
 
   mediaRouter = new MediaRouter(connector.bindHandleToProxy(
       serviceProvider.connectToService(
           mediaRouterMojom.MediaRouter.name),
       mediaRouterMojom.MediaRouter));
 
   return mediaRouter;
 });