Dynamic policy refresh support for the Mac.

chrome/browser/policy/configuration_policy_provider_mac.h

 // Copyright (c) 2010 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 "base/scoped_ptr.h"
-#include "chrome/browser/policy/configuration_policy_store.h"
-#include "chrome/browser/policy/configuration_policy_provider.h"
+#include "chrome/browser/policy/file_based_policy_provider.h"
 #include "chrome/browser/preferences_mac.h"
 
 namespace policy {
 
+// A policy loader implementation that read Mac OS X's managed preferences.
+class MacPreferencesPolicyLoader : public FileBasedPolicyProvider::Delegate {
+ public:
+  // Takes ownership of |preferences|.
+  MacPreferencesPolicyLoader(
+      MacPreferences* preferences,
+      const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list);
+
+  // FileBasedPolicyLoader::Delegate implementation.
+  virtual DictionaryValue* Load();
+  virtual base::Time GetLastModification();
+
+ 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 ConfigurationPolicyProvider::PolicyDefinitionList* policy_list_;
+
+  scoped_ptr<MacPreferences> preferences_;
+
+  DISALLOW_COPY_AND_ASSIGN(MacPreferencesPolicyLoader);
+};
+
 // An implementation of |ConfigurationPolicyProvider| using the mechanism
 // provided by Mac OS X's managed preferences.
-class ConfigurationPolicyProviderMac : public ConfigurationPolicyProvider {
+class ConfigurationPolicyProviderMac
+    : public FileBasedPolicyProvider {
  public:
   explicit ConfigurationPolicyProviderMac(
-      const StaticPolicyValueMap& policy_map);
+      const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list);
   // For testing; takes ownership of |preferences|.
-  ConfigurationPolicyProviderMac(const StaticPolicyValueMap& policy_map,
-                                 MacPreferences* preferences);
-  virtual ~ConfigurationPolicyProviderMac() { }
+  ConfigurationPolicyProviderMac(
+      const ConfigurationPolicyProvider::PolicyDefinitionList* policy_list,
+      MacPreferences* preferences);
 
-  // ConfigurationPolicyProvider method overrides:
-  virtual bool Provide(ConfigurationPolicyStore* store);
-
- protected:
-  scoped_ptr<MacPreferences> preferences_;
+  DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyProviderMac);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CONFIGURATION_POLICY_PROVIDER_MAC_H_