Cleanup: Remove unneeded chrome/common/pref_names.h includes.

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 "ash/shell.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_process_platform_part.h"
 #include "chrome/browser/chromeos/login/ui/login_display_host_impl.h"
 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
 #include "chrome/browser/chromeos/login/users/multi_profile_user_controller.h"
 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
 #include "chrome/browser/signin/screenlock_bridge.h"
 #include "chrome/browser/ui/webui/chromeos/login/l10n_util.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
-#include "chrome/common/pref_names.h"
 #include "components/user_manager/user_manager.h"
 #include "components/user_manager/user_type.h"
 #include "ui/wm/core/user_activity_detector.h"
 
 namespace chromeos {
 
 namespace {
 
 // User dictionary keys.
 const char kKeyUsername[] = "username";
@@ skipping 345 matching lines @@
 }
 
 ScreenlockBridge::LockHandler::AuthType UserSelectionScreen::GetAuthType(
     const std::string& username) const {
   if (user_auth_type_map_.find(username) == user_auth_type_map_.end())
     return ScreenlockBridge::LockHandler::OFFLINE_PASSWORD;
   return user_auth_type_map_.find(username)->second;
 }
 
 }  // namespace chromeos