ChromeOS: Fix removeUser button on signin screen.

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 246 matching lines @@
 void UserSelectionScreen::Init(const user_manager::UserList& users,
                                bool show_guest) {
   users_ = users;
   show_guest_ = show_guest;
 
   ui::UserActivityDetector* activity_detector = ui::UserActivityDetector::Get();
   if (!activity_detector->HasObserver(this))
     activity_detector->AddObserver(this);
 }
 
-void UserSelectionScreen::OnBeforeUserRemoved(const std::string& username) {
+void UserSelectionScreen::OnBeforeUserRemoved(const AccountId& account_id) {
   for (user_manager::UserList::iterator it = users_.begin(); it != users_.end();
        ++it) {
-    if ((*it)->email() == username) {
+    if ((*it)->GetAccountId() == account_id) {
       users_.erase(it);
       break;
     }
   }
 }
 
-void UserSelectionScreen::OnUserRemoved(const std::string& username) {
+void UserSelectionScreen::OnUserRemoved(const AccountId& account_id) {
   if (!handler_)
     return;
-  handler_->OnUserRemoved(username, users_.empty());
+  handler_->OnUserRemoved(account_id, users_.empty());
 }
 
 void UserSelectionScreen::OnUserImageChanged(const user_manager::User& user) {
   if (!handler_)
     return;
   handler_->OnUserImageChanged(user);
   // TODO(antrim) : updateUserImage(user.email())
 }
 
 void UserSelectionScreen::OnPasswordClearTimerExpired() {
@@ skipping 269 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