Move policy code into components/policy.

chrome/browser/policy/policy_statistics_collector.cc

Index: chrome/browser/policy/policy_statistics_collector.cc
diff --git a/chrome/browser/policy/policy_statistics_collector.cc b/chrome/browser/policy/policy_statistics_collector.cc
deleted file mode 100644
index 51fe04cb5cc9a438f9c4a00d90bf85eccbfa0a4f..0000000000000000000000000000000000000000
--- a/chrome/browser/policy/policy_statistics_collector.cc
+++ /dev/null
@@ -1,94 +0,0 @@
-// 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.
-
-#include "chrome/browser/policy/policy_statistics_collector.h"
-
-#include <algorithm>
-#include <string>
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/metrics/sparse_histogram.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "base/prefs/pref_service.h"
-#include "base/task_runner.h"
-#include "chrome/browser/policy/policy_service.h"
-#include "components/policy/core/common/policy_pref_names.h"
-
-namespace policy {
-
-const int PolicyStatisticsCollector::kStatisticsUpdateRate =
-    24 * 60 * 60 * 1000;  // 24 hours.
-
-PolicyStatisticsCollector::PolicyStatisticsCollector(
-    const GetChromePolicyDetailsCallback& get_details,
-    const Schema& chrome_schema,
-    PolicyService* policy_service,
-    PrefService* prefs,
-    const scoped_refptr<base::TaskRunner>& task_runner)
-    : get_details_(get_details),
-      chrome_schema_(chrome_schema),
-      policy_service_(policy_service),
-      prefs_(prefs),
-      task_runner_(task_runner) {
-}
-
-PolicyStatisticsCollector::~PolicyStatisticsCollector() {
-}
-
-void PolicyStatisticsCollector::Initialize() {
-  using base::Time;
-  using base::TimeDelta;
-
-  TimeDelta update_rate = TimeDelta::FromMilliseconds(kStatisticsUpdateRate);
-  Time last_update = Time::FromInternalValue(
-      prefs_->GetInt64(policy_prefs::kLastPolicyStatisticsUpdate));
-  TimeDelta delay = std::max(Time::Now() - last_update, TimeDelta::FromDays(0));
-  if (delay >= update_rate)
-    CollectStatistics();
-  else
-    ScheduleUpdate(update_rate - delay);
-}
-
-// static
-void PolicyStatisticsCollector::RegisterPrefs(PrefRegistrySimple* registry) {
-  registry->RegisterInt64Pref(policy_prefs::kLastPolicyStatisticsUpdate, 0);
-}
-
-void PolicyStatisticsCollector::RecordPolicyUse(int id) {
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Enterprise.Policies", id);
-}
-
-void PolicyStatisticsCollector::CollectStatistics() {
-  const PolicyMap& policies = policy_service_->GetPolicies(
-      PolicyNamespace(POLICY_DOMAIN_CHROME, std::string()));
-
-  // Collect statistics.
-  for (Schema::Iterator it(chrome_schema_.GetPropertiesIterator());
-       !it.IsAtEnd(); it.Advance()) {
-    if (policies.Get(it.key())) {
-      const PolicyDetails* details = get_details_.Run(it.key());
-      if (details)
-        RecordPolicyUse(details->id);
-      else
-        NOTREACHED();
-    }
-  }
-
-  // Take care of next update.
-  prefs_->SetInt64(policy_prefs::kLastPolicyStatisticsUpdate,
-                   base::Time::Now().ToInternalValue());
-  ScheduleUpdate(base::TimeDelta::FromMilliseconds(kStatisticsUpdateRate));
-}
-
-void PolicyStatisticsCollector::ScheduleUpdate(base::TimeDelta delay) {
-  update_callback_.Reset(base::Bind(
-      &PolicyStatisticsCollector::CollectStatistics,
-      base::Unretained(this)));
-  task_runner_->PostDelayedTask(FROM_HERE, update_callback_.callback(), delay);
-}
-
-}  // namespace policy