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 getValidators(factory) {
+    var validators = factory.prototype.validators;
+    return Array.isArray(validators) ? validators : [];
+  }
+
   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);
+    this.router_.setValidators(
+        getValidators(localFactory).concat(getValidators(remoteFactory)));
   }
 
   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;
 });