Implementation of managed policy: Policy Abstraction

chrome/browser/configuration_policy_provider.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_CONFIGURATION_POLICY_PROVIDER_H_
+#define CHROME_BROWSER_CONFIGURATION_POLICY_PROVIDER_H_
+
+class ConfigurationPolicyStore;
+
+// An abstract super class for platform-specific policy providers.
+// Platform-specific policy providers (Windows Group Policy, gconf,
+// etc.) should implement a subclass of this class.
+class ConfigurationPolicyProvider {
+ public:
+  ConfigurationPolicyProvider();
+  virtual ~ConfigurationPolicyProvider() {}
+
+  // Must be implemented by provider subclasses to specify the
+  // provider-specific policy decisions. The preference service
+  // invokes this |Provide| method when it needs a policy
+  // provider to specify its policy choices. In |Provide|,
+  // the |ConfigurationPolicyProvider| must make calls to the
+  // |Apply| method of |store| to apply specific policies.
+  // Returns true if the policy could be provided, otherwise false.
+  virtual bool Provide(ConfigurationPolicyStore* store) = 0;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ConfigurationPolicyProvider);
+};
+
+#endif  // CHROME_BROWSER_CONFIGURATION_POLICY_PROVIDER_H_
+