[cros] user_manager component - move UserManagerBase and UserManager

* Move UserManager test helper classes in their own files
* Move RemoveUserDelegate to user_manager component
* Move UserManager ownership to BrowserProcessPlatformPart
* UserManager::Get() still stays but instance is explicitly initialized/cleared with instance->Initialize()|Destroy()
* ScopedUserManagerEnabler / ScopedTestUserManager classes still work

* Introduce ChromeUserManager base class (impl: ChromeUserManagerImpl)
* ChromeUserManager adds getters for MultiProfileUserController, UserImageManager, SupervisedUserManager.
All clients that were using these methods now access ChromeUserManager instance through ChromeUserManager::Get().
* FakeUserManager/MockUserManager implement ChromeUserManager
* Move *UserFlow() methods out of UserManager to ChromeUserManager

BUG=387614
TBR=thestig,benwells

Review URL: https://codereview.chromium.org/444903002

Cr-Commit-Position: refs/heads/master@{#289827}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@289827 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 85 insertions, 0 deletions

diff --git a/components/user_manager/user_manager.cc b/components/user_manager/user_manager.cc
new file mode 100644
index 0000000..597407f
--- /dev/null
+++ b/components/user_manager/user_manager.cc
@@ -0,0 +1,85 @@
+// 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 "components/user_manager/user_manager.h"
+
+#include "base/logging.h"
+
+namespace user_manager {
+
+UserManager* UserManager::instance = NULL;
+
+UserManager::Observer::~Observer() {
+}
+
+void UserManager::Observer::LocalStateChanged(UserManager* user_manager) {
+}
+
+void UserManager::UserSessionStateObserver::ActiveUserChanged(
+    const User* active_user) {
+}
+
+void UserManager::UserSessionStateObserver::UserAddedToSession(
+    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) {
+}
+
+UserManager::UserAccountData::~UserAccountData() {
+}
+
+void UserManager::Initialize() {
+  DCHECK(!UserManager::instance);
+  UserManager::SetInstance(this);
+}
+
+// static
+bool UserManager::IsInitialized() {
+  return UserManager::instance;
+}
+
+void UserManager::Destroy() {
+  DCHECK(UserManager::instance == this);
+  UserManager::SetInstance(NULL);
+}
+
+// static
+UserManager* user_manager::UserManager::Get() {
+  CHECK(UserManager::instance);
+  return UserManager::instance;
+}
+
+UserManager::~UserManager() {
+}
+
+// static
+void UserManager::SetInstance(UserManager* user_manager) {
+  UserManager::instance = user_manager;
+}
+
+// static
+UserManager* user_manager::UserManager::GetForTesting() {
+  return UserManager::instance;
+}
+
+// static
+UserManager* UserManager::SetForTesting(UserManager* user_manager) {
+  UserManager* previous_instance = UserManager::instance;
+  UserManager::instance = user_manager;
+  return previous_instance;
+}
+
+}  // namespace user_manager