[cros, Aura] Make screen_mode static variable in StatusAreaViewChromeos

chrome/browser/chromeos/login/background_view.h

 // Copyright (c) 2011 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_BACKGROUND_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_BACKGROUND_VIEW_H_
 #pragma once
 
 #include <string>
 
@@ skipping 99 matching lines @@
 
   // Overridden from LoginHtmlDialog::Delegate:
   virtual void OnDialogClosed() OVERRIDE {}
 
   // Overridden from VersionInfoUpdater::Delegate:
   virtual void OnOSVersionLabelTextUpdated(
       const std::string& os_version_label_text) OVERRIDE;
   virtual void OnBootTimesLabelTextUpdated(
       const std::string& boot_times_label_text) OVERRIDE;
 
-  void set_screen_mode(StatusAreaViewChromeos::ScreenMode mode) {
-    screen_mode_ = mode;
-  }
-
  private:
   // Creates and adds the status_area.
   void InitStatusArea();
   // Creates and adds the labels for version and boot time.
   void InitInfoLabels();
 
   // Invokes SetWindowType for the window. This is invoked during startup and
   // after we've painted.
   void UpdateWindowType();
 
   // All of these variables could be NULL.
   StatusAreaViewChromeos* status_area_;
-  StatusAreaViewChromeos::ScreenMode screen_mode_;
   views::Label* os_version_label_;
   views::Label* boot_times_label_;
   ShutdownButton* shutdown_button_;
 
   // True if running official BUILD.
   bool is_official_build_;
 
   // DOMView for rendering a webpage as a background.
   DOMView* background_area_;
 
   // Proxy settings dialog that can be invoked from network menu.
   scoped_ptr<LoginHtmlDialog> proxy_settings_dialog_;
 
   // Updates version info.
   VersionInfoUpdater version_info_updater_;
 
   DISALLOW_COPY_AND_ASSIGN(BackgroundView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_BACKGROUND_VIEW_H_