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// 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_POLICY_SERVICE_H_
#define CHROME_BROWSER_POLICY_POLICY_SERVICE_H_
#pragma once
#include <string>
#include "chrome/browser/policy/policy_map.h"
namespace policy {
// Policies are namespaced by a (PolicyDomain, ID) pair. The meaning of the ID
// string depends on the domain; for example, if the PolicyDomain is
// "extensions" then the ID identifies the extension that the policies control.
// Currently CHROME is the only domain available, and its ID is always the empty
// string.
enum PolicyDomain {
POLICY_DOMAIN_CHROME,
};
// The PolicyService merges policies from all available sources, taking into
// account their priorities. Policy clients can retrieve policy for their domain
// and register for notifications on policy updates.
//
// The PolicyService is available from BrowserProcess as a global singleton.
class PolicyService {
public:
class Observer {
public:
virtual ~Observer() {}
// Invoked whenever policies for the |domain|, |component_id| namespace are
// modified. This is only invoked for changes that happen after AddObserver
// is called.
virtual void OnPolicyUpdated(PolicyDomain domain,
const std::string& component_id) = 0;
};
virtual ~PolicyService() {}
virtual void AddObserver(PolicyDomain domain,
const std::string& component_id,
Observer* observer) = 0;
virtual void RemoveObserver(PolicyDomain domain,
const std::string& component_id,
Observer* observer) = 0;
// Returns NULL if no policies are available for |domain|, | component_id|.
virtual const PolicyMap* GetPolicies(
PolicyDomain domain,
const std::string& component_id) const = 0;
};
} // namespace policy
#endif // CHROME_BROWSER_POLICY_POLICY_SERVICE_H_
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