Add proxy settings to network control at upper row of controls at login screen.

chrome/browser/chromeos/frame/browser_view.h

 // Copyright (c) 2010 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_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_FRAME_BROWSER_VIEW_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 46 matching lines @@
   virtual void ShowContextMenu(views::View* source,
                                const gfx::Point& p,
                                bool is_mouse_gesture);
 
   // StatusAreaHost overrides.
   virtual Profile* GetProfile() const;
   virtual gfx::NativeWindow GetNativeWindow() const;
   virtual bool ShouldOpenButtonOptions(
       const views::View* button_view) const;
   virtual void ExecuteBrowserCommand(int id) const;
-  virtual void OpenButtonOptions(const views::View* button_view) const;
+  virtual void OpenButtonOptions(const views::View* button_view);
   virtual bool IsBrowserMode() const;
   virtual bool IsScreenLockerMode() const;
 
  protected:
   virtual void GetAccessiblePanes(
       std::vector<AccessiblePaneView*>* panes);
 
  private:
   void InitSystemMenu();
 
   // Status Area view.
   StatusAreaView* status_area_;
 
   // System menus.
   scoped_ptr<menus::SimpleMenuModel> system_menu_contents_;
   scoped_ptr<views::Menu2> system_menu_menu_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FRAME_BROWSER_VIEW_H_