Remove old cloud policy code.

chrome/browser/policy/policy_notifier.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_POLICY_NOTIFIER_H_
-#define CHROME_BROWSER_POLICY_POLICY_NOTIFIER_H_
-
-#include "base/observer_list.h"
-#include "chrome/browser/policy/cloud_policy_subsystem.h"
-
-namespace policy {
-
-// Keeps track of the state of the policy subsystem components as far as it's
-// relevant to the outside world. Is informed by components about status
-// changes (failures and successes), determines the overall state and
-// communicates it.
-class PolicyNotifier {
- public:
-  typedef CloudPolicySubsystem::PolicySubsystemState PolicySubsystemState;
-  typedef CloudPolicySubsystem::ErrorDetails ErrorDetails;
-
-  enum StatusSource {
-    TOKEN_FETCHER,
-    POLICY_CONTROLLER,
-    POLICY_CACHE,
-    NUM_SOURCES  // This must be the last element in the enum.
-  };
-
-  PolicyNotifier();
-  ~PolicyNotifier();
-
-  // Called by components of the policy subsystem. Determines the new overall
-  // state and triggers observer notifications as necessary.
-  void Inform(PolicySubsystemState state,
-              ErrorDetails error_details,
-              StatusSource source);
-
-  CloudPolicySubsystem::PolicySubsystemState state() const {
-    return state_;
-  }
-
-  CloudPolicySubsystem::ErrorDetails error_details() const {
-    return error_details_;
-  }
-
- private:
-  friend class CloudPolicyController;
-  friend class CloudPolicySubsystem::ObserverRegistrar;
-
-  void AddObserver(CloudPolicySubsystem::Observer* observer);
-  void RemoveObserver(CloudPolicySubsystem::Observer* observer);
-
-  void RecomputeState();
-
-  PolicySubsystemState state_;
-  ErrorDetails error_details_;
-
-  PolicySubsystemState component_states_[NUM_SOURCES];
-  ErrorDetails component_error_details_[NUM_SOURCES];
-
-  ObserverList<CloudPolicySubsystem::Observer, true> observer_list_;
-
-  DISALLOW_COPY_AND_ASSIGN(PolicyNotifier);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_POLICY_NOTIFIER_H_