Migrate call sites LoginDisplayHostImpl::default_host to LoginDisplayHost.

chrome/browser/chromeos/login/ui/webui_login_display.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/ui/webui_login_display.h"
 
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
 #include "chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h"
 #include "chrome/browser/chromeos/login/signin_screen_controller.h"
 #include "chrome/browser/chromeos/login/startup_utils.h"
-#include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
+#include "chrome/browser/chromeos/login/ui/login_display_host.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "chromeos/login/user_names.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/user_manager.h"
@@ skipping 67 matching lines @@
   // TODO(nkostylev): Cleanup this condition,
   // see http://crbug.com/157885 and http://crbug.com/158255.
   // Allow this call only before user sign in or at lock screen.
   // If this call is made after new user signs in but login screen is still
   // around that would trigger a sign in extension refresh.
   if (is_enabled && (!user_manager::UserManager::Get()->IsUserLoggedIn() ||
                      ScreenLocker::default_screen_locker())) {
     ClearAndEnablePassword();
   }
 
-  if (chromeos::LoginDisplayHost* host =
-          chromeos::LoginDisplayHostImpl::default_host()) {
-    if (chromeos::WebUILoginView* login_view = host->GetWebUILoginView())
-      login_view->SetUIEnabled(is_enabled);
-  }
+  LoginDisplayHost* host = LoginDisplayHost::default_host();
+  if (host && host->GetWebUILoginView())
+    host->GetWebUILoginView()->SetUIEnabled(is_enabled);
 }
 
 void WebUILoginDisplay::ShowError(int error_msg_id,
                                   int login_attempts,
                                   HelpAppLauncher::HelpTopic help_topic_id) {
   VLOG(1) << "Show error, error_id: " << error_msg_id
           << ", attempts:" << login_attempts
           <<  ", help_topic_id: " << help_topic_id;
   if (!webui_handler_)
     return;
@@ skipping 207 matching lines @@
 }
 
 bool WebUILoginDisplay::IsUserWhitelisted(const AccountId& account_id) {
   DCHECK(delegate_);
   if (delegate_)
     return delegate_->IsUserWhitelisted(account_id);
   return true;
 }
 
 }  // namespace chromeos