Implement the mac policy provider based on the AsyncPolicyLoader.

chrome/browser/policy/configuration_policy_provider_mac.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 CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_MAC_H_
-#define CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_MAC_H_
-#pragma once
-
-#include <CoreFoundation/CoreFoundation.h>
-
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/policy/file_based_policy_provider.h"
-
-class MacPreferences;
-
-namespace base {
-class Value;
-}
-
-namespace policy {
-
-// A provider delegate implementation that reads Mac OS X's managed preferences.
-class MacPreferencesPolicyProviderDelegate
-    : public FileBasedPolicyProvider::ProviderDelegate {
- public:
-  // Takes ownership of |preferences|.
-  MacPreferencesPolicyProviderDelegate(
-      MacPreferences* preferences,
-      const PolicyDefinitionList* policy_list);
-  virtual ~MacPreferencesPolicyProviderDelegate();
-
-  // FileBasedPolicyLoader::Delegate implementation.
-  virtual scoped_ptr<PolicyBundle>  Load() OVERRIDE;
-  virtual base::Time GetLastModification() OVERRIDE;
-
-  // Converts a CFPropertyListRef to the equivalent base::Value. CFDictionary
-  // entries whose key is not a CFStringRef are ignored.
-  // The returned value is owned by the caller.
-  // Returns NULL if an invalid CFType was found, such as CFDate or CFData.
-  static base::Value* CreateValueFromProperty(CFPropertyListRef property);
-
- private:
-  // In order to access the application preferences API, the names and values of
-  // the policies that are recognized must be known to the loader.
-  // Unfortunately, we cannot get the policy list at load time from the
-  // provider, because the loader may outlive the provider, so we store our own
-  // pointer to the list.
-  const PolicyDefinitionList* policy_list_;
-
-  scoped_ptr<MacPreferences> preferences_;
-
-  DISALLOW_COPY_AND_ASSIGN(MacPreferencesPolicyProviderDelegate);
-};
-
-// An implementation of |ConfigurationPolicyProvider| using the mechanism
-// provided by Mac OS X's managed preferences.
-class ConfigurationPolicyProviderMac : public FileBasedPolicyProvider {
- public:
-  explicit ConfigurationPolicyProviderMac(
-      const PolicyDefinitionList* policy_list);
-
-  // For testing; takes ownership of |preferences|.
-  ConfigurationPolicyProviderMac(const PolicyDefinitionList* policy_list,
-                                 MacPreferences* preferences);
-
-  DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyProviderMac);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_MAC_H_