chromeos: Remove old status-area related code.

chrome/browser/chromeos/login/login_display_host.h

 // Copyright (c) 2012 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_LOGIN_DISPLAY_HOST_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_HOST_H_
 #pragma once
 
 #include <string>
 
@@ skipping 35 matching lines @@
 
   // Open proxy settings dialog.
   virtual void OpenProxySettings() = 0;
 
   // Toggles OOBE progress bar visibility, the bar is hidden by default.
   virtual void SetOobeProgressBarVisible(bool visible) = 0;
 
   // Enable/disable shutdown button.
   virtual void SetShutdownButtonEnabled(bool enable) = 0;
 
-  // Toggles whether status area is enabled.
-  virtual void SetStatusAreaEnabled(bool enable) = 0;
-
   // Toggles status area visibility.
   virtual void SetStatusAreaVisible(bool visible) = 0;
 
   // Signals the LoginDisplayHost that it can proceed with the Enterprise
   // Auto-Enrollment checks now.
   virtual void CheckForAutoEnrollment() = 0;
 
   // Starts out-of-box-experience flow or shows other screen handled by
   // Wizard controller i.e. camera, recovery.
   // One could specify start screen with |first_screen_name|.
   // Takes ownership of |screen_parameters|, which can also be NULL.
   virtual void StartWizard(
       const std::string& first_screen_name,
       DictionaryValue* screen_parameters) = 0;
 
   // Starts sign in screen.
   virtual void StartSignInScreen() = 0;
 
   // Resumes a previously started sign in screen.
   virtual void ResumeSignInScreen() = 0;
 
   // Invoked when system preferences that affect the signin screen have changed.
   virtual void OnPreferencesChanged() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_HOST_H_