user_manager: Remove deps on session_manager

chrome/browser/ui/ash/session_state_delegate_chromeos.cc

 // Copyright (c) 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/ui/ash/session_state_delegate_chromeos.h"
 
 #include "ash/aura/wm_window_aura.h"
 #include "ash/common/session/session_state_observer.h"
 #include "ash/content/shell_content_state.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/users/multi_profile_user_controller.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
 #include "chrome/browser/ui/ash/multi_user/user_switch_util.h"
 #include "chrome/browser/ui/ash/session_util.h"
 #include "chrome/common/pref_names.h"
 #include "chromeos/chromeos_switches.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
 #include "chromeos/dbus/session_manager_client.h"
 #include "chromeos/login/login_state.h"
 #include "components/prefs/pref_service.h"
+#include "components/session_manager/core/session_manager.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/user.h"
 #include "components/user_manager/user_info.h"
 #include "components/user_manager/user_manager.h"
 #include "google_apis/gaia/gaia_auth_util.h"
 #include "ui/gfx/image/image_skia.h"
 
 SessionStateDelegateChromeos::SessionStateDelegateChromeos()
     : session_state_(session_manager::SessionState::LOGIN_PRIMARY) {
   user_manager::UserManager::Get()->AddSessionStateObserver(this);
@@ skipping 43 matching lines @@
           ->GetUsersAllowedForMultiProfile()
           .size() == 0) {
     if (error)
       *error = ADD_USER_ERROR_OUT_OF_USERS;
     return false;
   }
   return SessionStateDelegate::CanAddUserToMultiProfile(error);
 }
 
 bool SessionStateDelegateChromeos::IsActiveUserSessionStarted() const {
-  return user_manager::UserManager::Get()->IsSessionStarted();
+  return session_manager::SessionManager::Get() &&
+         session_manager::SessionManager::Get()->IsSessionStarted();
 }
 
 bool SessionStateDelegateChromeos::CanLockScreen() const {
   const user_manager::UserList unlock_users =
       user_manager::UserManager::Get()->GetUnlockUsers();
   return !unlock_users.empty();
 }
 
 bool SessionStateDelegateChromeos::IsScreenLocked() const {
   return chromeos::ScreenLocker::default_screen_locker() &&
@@ skipping 178 matching lines @@
 }
 
 void DoSwitchUser(const AccountId& account_id) {
   user_manager::UserManager::Get()->SwitchActiveUser(account_id);
 }
 
 void SessionStateDelegateChromeos::TryToSwitchUser(
     const AccountId& account_id) {
   TrySwitchingActiveUser(base::Bind(&DoSwitchUser, account_id));
 }