[Media Router] Add origins to sink query results.

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 247 matching lines @@
    */
   MediaRouter.prototype.getKeepAlive = function() {
     return this.keepAlive_ != null;
   };
 
   /**
    * Called by the provider manager when a sink list for a given source is
    * updated.
    * @param {!string} sourceUrn
    * @param {!Array<!MediaSink>} sinks
+   * @param {Array<string>=} opt_origins
    */
-  MediaRouter.prototype.onSinksReceived = function(sourceUrn, sinks) {
-    this.service_.onSinksReceived(sourceUrn, sinks.map(sinkToMojo_));
+  MediaRouter.prototype.onSinksReceived = function(sourceUrn, sinks,
+      opt_origins) {
+    // TODO(imcheng): Make origins required in M52+.
+    this.service_.onSinksReceived(sourceUrn, sinks.map(sinkToMojo_),
+        opt_origins || []);
   };
 
   /**
    * Called by the provider manager to keep the extension from suspending
    * if it enters a state where suspension is undesirable (e.g. there is an
    * active MediaRoute.)
    * If keepAlive is true, the extension is kept alive.
    * If keepAlive is false, the extension is allowed to suspend.
    * @param {boolean} keepAlive
    */
@@ skipping 453 matching lines @@
   };
 
   mediaRouter = new MediaRouter(connector.bindHandleToProxy(
       serviceProvider.connectToService(
           mediaRouterMojom.MediaRouter.name),
       mediaRouterMojom.MediaRouter));
 
   return mediaRouter;
 });