[Media Router] Use DialMediaSinkService in MediaRouterMojoImpl

chrome/renderer/resources/extensions/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', [
     'chrome/common/media_router/mojo/media_controller.mojom',
     'chrome/common/media_router/mojo/media_router.mojom',
     'chrome/common/media_router/mojo/media_status.mojom',
@@ skipping 276 matching lines @@
       MediaStatusObserverPtr: mediaStatusMojom.MediaStatusObserverPtr,
       Sink: mediaRouterMojom.MediaSink,
       SinkExtraData: mediaRouterMojom.MediaSinkExtraData,
       TimeDelta: timeMojom.TimeDelta,
       Url: urlMojom.Url,
     };
   };
 
   /**
    * Registers the Media Router Provider Manager with the Media Router.
-   * @return {!Promise<string>} Instance ID for the Media Router.
+   * @return {!Promise<Object>} Instance ID and config for the Media Router.
    */
   MediaRouter.prototype.start = function() {
     return this.service_.registerMediaRouteProvider(
-        this.mediaRouteProviderBinding_.createInterfacePtrAndBind()).then(
-            function(result) {
-      return result.instance_id;
-    }.bind(this));
+        this.mediaRouteProviderBinding_.createInterfacePtrAndBind());
   }
 
   /**
    * Sets the service delegate methods.
    * @param {Object} handlers
    */
   MediaRouter.prototype.setHandlers = function(handlers) {
     this.mrpm_.setHandlers(handlers);
   }
 
@@ skipping 638 matching lines @@
     }
     this.handlers_.onBeforeInvokeHandler();
     this.handlers_.setMediaRouteStatusObserver(routeId, observer);
   };
 
   mediaRouter = new MediaRouter(new mediaRouterMojom.MediaRouterPtr(
       frameInterfaces.getInterface(mediaRouterMojom.MediaRouter.name)));
 
   return mediaRouter;
 });