[net/dns] Removes locking from DnsConfigServiceWin and adds local computer name.

net/dns/dns_config_service_win.h

 // Copyright (c) 2012 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.
 
 #ifndef NET_DNS_DNS_CONFIG_SERVICE_WIN_H_
 #define NET_DNS_DNS_CONFIG_SERVICE_WIN_H_
 #pragma once
 
 // The sole purpose of dns_config_service_win.h is for unittests so we just
 // include these headers here.
@@ skipping 30 matching lines @@
 class NET_EXPORT_PRIVATE DnsConfigServiceWin
     : NON_EXPORTED_BASE(public DnsConfigService) {
  public:
   DnsConfigServiceWin();
   virtual ~DnsConfigServiceWin();
 
   virtual void Watch(const CallbackType& callback) OVERRIDE;
 
  private:
   class ConfigReader;
-
-  void OnHostsChanged(bool succeeded);
+  class HostsReader;
 
   scoped_refptr<ConfigReader> config_reader_;
-  scoped_ptr<FilePathWatcherWrapper> hosts_watcher_;
-  scoped_refptr<SerialWorker> hosts_reader_;
+  scoped_ptr<HostsReader> hosts_reader_;
 
   DISALLOW_COPY_AND_ASSIGN(DnsConfigServiceWin);
 };
 
 // All relevant settings read from registry and IP Helper. This isolates our
 // logic from system calls and is exposed for unit tests. Keep it an aggregate
 // struct for easy initialization.
 struct NET_EXPORT_PRIVATE DnsSystemSettings {
   // The |set| flag distinguishes between empty and unset values.
   struct RegString {
@@ skipping 45 matching lines @@
 // Fills in |dns_config| from |settings|. Exposed for tests.
 bool NET_EXPORT_PRIVATE ConvertSettingsToDnsConfig(
     const DnsSystemSettings& settings, DnsConfig* dns_config);
 
 }  // namespace internal
 
 }  // namespace net
 
 #endif  // NET_DNS_DNS_CONFIG_SERVICE_WIN_H_