ChromeOS: Show the new POD RE-AUTH ICON when users needs to re-auth

chrome/browser/chromeos/login/screens/user_selection_screen.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/screens/user_selection_screen.h"
 
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
@@ skipping 386 matching lines @@
     // available when running into login screen on first boot.
     // See http://crosbug.com/12723
     bool can_remove_user =
         ((!single_user || is_enterprise_managed) && !user_id.empty() &&
          !is_owner && !is_public_account && !signed_in && !is_signin_to_add);
     user_dict->SetBoolean(kKeyCanRemove, can_remove_user);
     users_list.Append(user_dict);
   }
 
   handler_->LoadUsers(users_list, show_guest_);
+
+  CheckAllUserStatuses();
 }
 
 void UserSelectionScreen::HandleGetUsers() {
   SendUserList();
 }
 
-void UserSelectionScreen::CheckUserStatus(const std::string& user_id) {
+bool UserSelectionScreen::CheckUserStatus(const std::string& user_id) {
   // No checks on lock screen.
   if (ScreenLocker::default_screen_locker())
-    return;
+    return false;
 
   if (!token_handle_util_.get()) {
     token_handle_util_.reset(
         new TokenHandleUtil(user_manager::UserManager::Get()));
   }
 
   if (token_handle_util_->HasToken(user_id)) {
-    token_handle_util_->CheckToken(
+    return token_handle_util_->CheckToken(
         user_id, base::Bind(&UserSelectionScreen::OnUserStatusChecked,
                             weak_factory_.GetWeakPtr()));
   }
+  return false;
+}
+
+void UserSelectionScreen::CheckAllUserStatuses() {
+  const user_manager::UserList& users = GetUsers();
+  for (const user_manager::User* user : users) {
+    // ignore return value.
+    CheckUserStatus(user->email());
+  }
 }
 
 void UserSelectionScreen::OnUserStatusChecked(
     const user_manager::UserID& user_id,
     TokenHandleUtil::TokenHandleStatus status) {
   if (status == TokenHandleUtil::INVALID) {
     RecordReauthReason(user_id, ReauthReason::INVALID_TOKEN_HANDLE);
     token_handle_util_->MarkHandleInvalid(user_id);
     SetAuthType(user_id, ONLINE_SIGN_IN, base::string16());
   }
@@ skipping 117 matching lines @@
   // The user profile should exist if and only if this is the lock screen.
   DCHECK_EQ(!!profile, GetScreenType() == LOCK_SCREEN);
 
   if (!profile)
     profile = profile_helper->GetSigninProfile();
 
   return EasyUnlockService::Get(profile);
 }
 
 }  // namespace chromeos