Move policy code into components/policy.

chrome/browser/policy/policy_statistics_collector.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_STATISTICS_COLLECTOR_H_
-#define CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_
-
-#include "base/basictypes.h"
-#include "base/cancelable_callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/time/time.h"
-#include "components/policy/core/common/policy_details.h"
-#include "components/policy/core/common/schema.h"
-
-class PrefService;
-class PrefRegistrySimple;
-
-namespace base {
-class TaskRunner;
-}
-
-namespace policy {
-
-class PolicyService;
-
-// Manages regular updates of policy usage UMA histograms.
-class PolicyStatisticsCollector {
- public:
-  // Policy usage statistics update rate, in milliseconds.
-  static const int kStatisticsUpdateRate;
-
-  // Neither |policy_service| nor |prefs| can be NULL and must stay valid
-  // throughout the lifetime of PolicyStatisticsCollector.
-  PolicyStatisticsCollector(const GetChromePolicyDetailsCallback& get_details,
-                            const Schema& chrome_schema,
-                            PolicyService* policy_service,
-                            PrefService* prefs,
-                            const scoped_refptr<base::TaskRunner>& task_runner);
-  virtual ~PolicyStatisticsCollector();
-
-  // Completes initialization and starts periodical statistic updates.
-  void Initialize();
-
-  static void RegisterPrefs(PrefRegistrySimple* registry);
-
- protected:
-  // protected virtual for mocking.
-  virtual void RecordPolicyUse(int id);
-
- private:
-  void CollectStatistics();
-  void ScheduleUpdate(base::TimeDelta delay);
-
-  GetChromePolicyDetailsCallback get_details_;
-  Schema chrome_schema_;
-  PolicyService* policy_service_;
-  PrefService* prefs_;
-
-  base::CancelableClosure update_callback_;
-
-  const scoped_refptr<base::TaskRunner> task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(PolicyStatisticsCollector);
-};
-
-}  // namespace policy
-
-#endif  // CHROME_BROWSER_POLICY_POLICY_STATISTICS_COLLECTOR_H_