Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/configuration_policy_provider_delegate_win.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_DELEGATE_WIN_H_
 #define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_DELEGATE_WIN_H_
 #pragma once
 
 #include "chrome/browser/policy/asynchronous_policy_provider.h"
 
 namespace policy {
 
 class ConfigurationPolicyProviderDelegateWin
     : public AsynchronousPolicyProvider::Delegate {
  public:
-  ConfigurationPolicyProviderDelegateWin(
+  explicit ConfigurationPolicyProviderDelegateWin(
       const ConfigurationPolicyProvider::PolicyDefinitionList*
           policy_definition_list);
   virtual ~ConfigurationPolicyProviderDelegateWin() {}
 
   // AsynchronousPolicyProvider::Delegate overrides:
-  virtual DictionaryValue* Load();
+  virtual DictionaryValue* Load() OVERRIDE;
 
  private:
   // Methods to perform type-specific policy lookups in the registry.
   // HKLM is checked first, then HKCU.
 
   // Reads a string registry value |name| at the specified |key| and puts the
   // resulting string in |result|.
   bool GetRegistryPolicyString(const string16& name, string16* result) const;
   // Gets a list value contained under |key| one level below the policy root.
   bool GetRegistryPolicyStringList(const string16& key,
                                    ListValue* result) const;
   bool GetRegistryPolicyBoolean(const string16& value_name,
                                 bool* result) const;
   bool GetRegistryPolicyInteger(const string16& value_name,
                                 uint32* result) const;
 
   const ConfigurationPolicyProvider::PolicyDefinitionList*
       policy_definition_list_;
 
   DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyProviderDelegateWin);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_DELEGATE_WIN_H_