Cleanups in the Mojo package.

mojo/dart/embedder/io/mojo_patch.dart

 // 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.
 
 import 'dart:_mojo/application.dart';
 import 'dart:_mojo/bindings.dart';
 import 'dart:_mojo/core.dart';
 import 'dart:_mojo/mojo/network_error.mojom.dart';
 import 'dart:_mojo_services/mojo/host_resolver.mojom.dart';
 import 'dart:_mojo_services/mojo/net_address.mojom.dart';
@@ skipping 21 matching lines @@
 //
 int _networkServiceHandle;
 int _filesServiceHandle;
 NetworkServiceProxy _networkService;
 HostResolverProxy _hostResolver;
 FilesProxy _files;
 DirectoryProxy _rootDirectory;
 DirectoryProxy _systemTempDirectory;
 
 void _initialize(int networkServiceHandle, int filesServiceHandle) {
-  if (networkServiceHandle != MojoHandle.INVALID) {
+  if (networkServiceHandle != MojoHandle.invalidHandle) {
     _networkServiceHandle = networkServiceHandle;
   }
-  if (filesServiceHandle != MojoHandle.INVALID) {
+  if (filesServiceHandle != MojoHandle.invalidHandle) {
     _filesServiceHandle = filesServiceHandle;
   }
 }
 
 void _shutdown() {
   if (_networkServiceHandle != null) {
     // Network service proxies were never initialized. Create a handle
     // and close it.
     var handle = new MojoHandle(_networkServiceHandle);
     _networkServiceHandle = null;
@@ skipping 233 matching lines @@
   }
 
   static _throwOnError(NetworkError error) {
     if (_okay(error)) {
       return;
     }
     throw new OSError(error.description, error.code);
   }
 }