[cros] user_manager component - move UserManagerBase and UserManager

components/user_manager/user_manager.cc

 // Copyright 2014 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/login/users/user_manager.h"
+#include "components/user_manager/user_manager.h"
 
-#include "base/command_line.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "chrome/browser/browser_process_platform_part_chromeos.h"
-#include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
-#include "chrome/browser/chromeos/profiles/profile_helper.h"
-#include "chrome/common/chrome_switches.h"
+#include "base/logging.h"
 
-namespace chromeos {
+namespace user_manager {
 
-static UserManager* g_user_manager = NULL;
+UserManager* UserManager::instance = NULL;
 
 UserManager::Observer::~Observer() {
 }
 
 void UserManager::Observer::LocalStateChanged(UserManager* user_manager) {
 }
 
 void UserManager::UserSessionStateObserver::ActiveUserChanged(
-    const user_manager::User* active_user) {
+    const User* active_user) {
 }
 
 void UserManager::UserSessionStateObserver::UserAddedToSession(
-    const user_manager::User* active_user) {
+    const User* active_user) {
 }
 
 void UserManager::UserSessionStateObserver::ActiveUserHashChanged(
     const std::string& hash) {
 }
 
 UserManager::UserSessionStateObserver::~UserSessionStateObserver() {
 }
 
 UserManager::UserAccountData::UserAccountData(
     const base::string16& display_name,
     const base::string16& given_name,
     const std::string& locale)
-    : display_name_(display_name),
-      given_name_(given_name),
-      locale_(locale) {
+    : display_name_(display_name), given_name_(given_name), locale_(locale) {
 }
 
-UserManager::UserAccountData::~UserAccountData() {}
+UserManager::UserAccountData::~UserAccountData() {
+}
 
-// static
 void UserManager::Initialize() {
-  CHECK(!g_user_manager);
-  g_user_manager = new ChromeUserManager();
+  DCHECK(!UserManager::instance);
+  UserManager::SetInstance(this);
 }
 
 // static
 bool UserManager::IsInitialized() {
-  return g_user_manager;
+  return UserManager::instance;
 }
 
 void UserManager::Destroy() {
-  DCHECK(g_user_manager);
-  delete g_user_manager;
-  g_user_manager = NULL;
+  DCHECK(UserManager::instance == this);
+  UserManager::SetInstance(NULL);
 }
 
 // static
-UserManager* UserManager::Get() {
-  CHECK(g_user_manager);
-  return g_user_manager;
+UserManager* user_manager::UserManager::Get() {
+  CHECK(UserManager::instance);
+  return UserManager::instance;
 }
 
 UserManager::~UserManager() {
 }
 
 // static
-UserManager* UserManager::SetForTesting(UserManager* user_manager) {
-  UserManager* previous_user_manager = g_user_manager;
-  if (previous_user_manager)
-    previous_user_manager->Shutdown();
-
-  g_user_manager = user_manager;
-  return previous_user_manager;
+void UserManager::SetInstance(UserManager* user_manager) {
+  UserManager::instance = user_manager;
 }
 
-ScopedUserManagerEnabler::ScopedUserManagerEnabler(UserManager* user_manager)
-    : previous_user_manager_(UserManager::SetForTesting(user_manager)) {
+// static
+UserManager* user_manager::UserManager::GetForTesting() {
+  return UserManager::instance;
 }
 
-ScopedUserManagerEnabler::~ScopedUserManagerEnabler() {
-  UserManager::Get()->Shutdown();
-  UserManager::Destroy();
-  UserManager::SetForTesting(previous_user_manager_);
+// static
+UserManager* UserManager::SetForTesting(UserManager* user_manager) {
+  UserManager* previous_instance = UserManager::instance;
+  UserManager::instance = user_manager;
+  return previous_instance;
 }
 
-ScopedTestUserManager::ScopedTestUserManager() {
-  UserManager::Initialize();
-
-  // ProfileHelper has to be initialized after UserManager instance is created.
-  ProfileHelper::Get()->Initialize();
-}
-
-ScopedTestUserManager::~ScopedTestUserManager() {
-  UserManager::Get()->Shutdown();
-  UserManager::Destroy();
-}
-
-}  // namespace chromeos
+}  // namespace user_manager