Fix cyclic dependency between ProfilePolicyConnector and PrefService.

chrome/browser/chromeos/policy/network_policy_service_factory.cc

+// Copyright 2013 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/chromeos/policy/network_policy_service_factory.h"
+
+#include "base/memory/singleton.h"
+#include "base/prefs/pref_service.h"
+#include "chrome/browser/chromeos/policy/network_policy_service.h"
+#include "chrome/browser/policy/profile_policy_connector.h"
+#include "chrome/browser/policy/profile_policy_connector_factory.h"
+#include "chrome/browser/profiles/incognito_helpers.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+
+namespace policy {
+
+// static
+NetworkPolicyService* NetworkPolicyServiceFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<NetworkPolicyService*>(
+      GetInstance()->GetServiceForBrowserContext(profile, true));
+}
+
+// static
+NetworkPolicyServiceFactory* NetworkPolicyServiceFactory::GetInstance() {
+  return Singleton<NetworkPolicyServiceFactory>::get();
+}
+
+NetworkPolicyServiceFactory::NetworkPolicyServiceFactory()
+    : BrowserContextKeyedServiceFactory(
+          "NetworkPolicyService",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ProfilePolicyConnectorFactory::GetInstance());
+}
+
+NetworkPolicyServiceFactory::~NetworkPolicyServiceFactory() {}
+
+content::BrowserContext* NetworkPolicyServiceFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return chrome::GetBrowserContextOwnInstanceInIncognito(context);
+}
+
+BrowserContextKeyedService*
+NetworkPolicyServiceFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  Profile* profile = static_cast<Profile*>(context);
+  ProfilePolicyConnector* connector =
+      ProfilePolicyConnectorFactory::GetForProfile(profile);
+  return new NetworkPolicyService(profile, connector->policy_service());
+}
+
+}  // namespace policy