cros: Fix flaky owner detection

components/user_manager/user_manager_base.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 "components/user_manager/user_manager_base.h"
 
 #include <stddef.h>
 #include <set>
 #include <utility>
 
@@ skipping 224 matching lines @@
   DCHECK(active_user_);
   active_user_->set_is_active(false);
   user->set_is_active(true);
   active_user_ = user;
 
   // Move the user to the front.
   SetLRUUser(active_user_);
 
   NotifyActiveUserHashChanged(active_user_->username_hash());
   NotifyActiveUserChanged(active_user_);
+  CallUpdateLoginState();
 }
 
 void UserManagerBase::SwitchToLastActiveUser() {
   if (!last_session_active_account_id_.is_valid())
     return;
 
   if (AccountId::FromUserEmail(
           GetActiveUser()->GetAccountId().GetUserEmail()) !=
       last_session_active_account_id_)
     SwitchActiveUser(last_session_active_account_id_);
@@ skipping 256 matching lines @@
         !users_set->insert(account_id).second) {
       LOG(ERROR) << "Duplicate user: " << email;
       continue;
     }
     users_vector->push_back(account_id);
   }
 }
 
 bool UserManagerBase::IsCurrentUserOwner() const {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
-  base::AutoLock lk(is_current_user_owner_lock_);
-  return is_current_user_owner_;
-}
-
-void UserManagerBase::SetCurrentUserIsOwner(bool is_current_user_owner) {
-  DCHECK(task_runner_->RunsTasksOnCurrentThread());
-  {
-    base::AutoLock lk(is_current_user_owner_lock_);
-    is_current_user_owner_ = is_current_user_owner;
-  }
-  CallUpdateLoginState();
+  return !owner_account_id_.empty() && active_user_ &&
+         active_user_->GetAccountId() == owner_account_id_;
 }
 
 bool UserManagerBase::IsCurrentUserNew() const {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
   return is_current_user_new_;
 }
 
 bool UserManagerBase::IsCurrentUserNonCryptohomeDataEphemeral() const {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
   return IsUserLoggedIn() &&
@@ skipping 200 matching lines @@
 void UserManagerBase::SetIsCurrentUserNew(bool is_new) {
   is_current_user_new_ = is_new;
 }
 
 bool UserManagerBase::HasPendingBootstrap(const AccountId& account_id) const {
   return false;
 }
 
 void UserManagerBase::SetOwnerId(const AccountId& owner_account_id) {
   owner_account_id_ = owner_account_id;
+  CallUpdateLoginState();
 }
 
 const AccountId& UserManagerBase::GetPendingUserSwitchID() const {
   return pending_user_switch_;
 }
 
 void UserManagerBase::SetPendingUserSwitchId(const AccountId& account_id) {
   pending_user_switch_ = account_id;
 }
 
@@ skipping 272 matching lines @@
   for (auto& observer : session_state_observer_list_)
     observer.UserChangedChildStatus(user);
 }
 
 void UserManagerBase::Initialize() {
   UserManager::Initialize();
   CallUpdateLoginState();
 }
 
 void UserManagerBase::CallUpdateLoginState() {
-  UpdateLoginState(active_user_, primary_user_, is_current_user_owner_);
+  UpdateLoginState(active_user_, primary_user_, IsCurrentUserOwner());
 }
 
 void UserManagerBase::SetLRUUser(User* user) {
   GetLocalState()->SetString(kLastActiveUser,
                              user->GetAccountId().GetUserEmail());
   GetLocalState()->CommitPendingWrite();
 
   UserList::iterator it =
       std::find(lru_logged_in_users_.begin(), lru_logged_in_users_.end(), user);
   if (it != lru_logged_in_users_.end())
@@ skipping 47 matching lines @@
 }
 
 void UserManagerBase::DeleteUser(User* user) {
   const bool is_active_user = (user == active_user_);
   delete user;
   if (is_active_user)
     active_user_ = nullptr;
 }
 
 }  // namespace user_manager