Integrate Mojo JS validation bindings with the Router

mojo/public/js/bindings/connection.js

 // Copyright 2014 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.
 
 define("mojo/public/js/bindings/connection", [
   "mojo/public/js/bindings/router",
 ], function(router) {
 
   function Connection(handle, localFactory, remoteFactory) {
     this.router_ = new router.Router(handle);
     this.remote = new remoteFactory(this.router_);
     this.local = new localFactory(this.remote);
     this.router_.setIncomingReceiver(this.local);
+
+    var validateRequest = localFactory.prototype.validator;
+    var validateResponse = remoteFactory.prototype.validator;
+    var payloadValidators = [];
+    if (validateRequest)
+      payloadValidators.push(validateRequest);
+    if (validateResponse)
+      payloadValidators.push(validateResponse);
+    this.router_.setPayloadValidators(payloadValidators);
   }
 
   Connection.prototype.close = function() {
     this.router_.close();
     this.router_ = null;
     this.local = null;
     this.remote = null;
   };
 
   Connection.prototype.encounteredError = function() {
     return this.router_.encounteredError();
   };
 
   var exports = {};
   exports.Connection = Connection;
   return exports;
 });