Bind former arrow function in connection.js to this.

mojo/public/js/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/connection", [
   "mojo/public/js/bindings",
   "mojo/public/js/connector",
   "mojo/public/js/core",
   "mojo/public/js/router",
 ], function(bindings, connector, core, router) {
@@ skipping 11 matching lines @@
   function BaseConnection(localStub, remoteProxy, router) {
     this.router_ = router;
     this.local = localStub;
     this.remote = remoteProxy;
 
     this.router_.setIncomingReceiver(localStub);
     this.router_.setErrorHandler(function() {
       if (StubBindings(this.local) &&
           StubBindings(this.local).connectionErrorHandler)
         StubBindings(this.local).connectionErrorHandler();
-    });
+    }.bind(this));
     if (this.remote)
       this.remote.receiver_ = router;
 
     // Validate incoming messages: remote responses and local requests.
     var validateRequest = localStub && localStub.validator;
     var validateResponse = remoteProxy && remoteProxy.validator;
     var payloadValidators = [];
     if (validateRequest)
       payloadValidators.push(validateRequest);
     if (validateResponse)
@@ skipping 108 matching lines @@
   var exports = {};
   exports.Connection = Connection;
   exports.TestConnection = TestConnection;
 
   exports.bindProxy = bindProxy;
   exports.bindImpl = bindImpl;
   exports.bindHandleToProxy = bindHandleToProxy;
   exports.bindHandleToStub = bindHandleToStub;
   return exports;
 });