cros: Refactor oobe LoadUsers to include non-serialized user list.

chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_CHROME_USER_SELECTION_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_CHROME_USER_SELECTION_SCREEN_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/screens/user_selection_screen.h"
 #include "chrome/browser/chromeos/policy/device_local_account_policy_service.h"
 
 class AccountId;
 
 namespace chromeos {
 
 class ChromeUserSelectionScreen
     : public UserSelectionScreen,
       public policy::DeviceLocalAccountPolicyService::Observer {
  public:
   explicit ChromeUserSelectionScreen(const std::string& display_type);
   ~ChromeUserSelectionScreen() override;
 
   // UserSelectionScreen:
-  void Init(const user_manager::UserList& users, bool show_guest) override;
+  void Init(const user_manager::UserList& users) override;
   void SendUserList() override;
 
   // policy::DeviceLocalAccountPolicyService::Observer:
   void OnPolicyUpdated(const std::string& user_id) override;
   void OnDeviceLocalAccountsChanged() override;
 
  private:
   // Check whether the display name set by policy for a public session has
   // changed and if so, notify the UI.
   void CheckForPublicSessionDisplayNameChange(
@@ skipping 23 matching lines @@
   DisplayNamesMap public_session_display_names_;
 
   base::WeakPtrFactory<ChromeUserSelectionScreen> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeUserSelectionScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_CHROME_USER_SELECTION_SCREEN_H_