views: Get rid of CreateViewsBubbleAboveLockScreen() function.

chrome/browser/ui/views/window.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_UI_VIEWS_WINDOW_H_
 #define CHROME_BROWSER_UI_VIEWS_WINDOW_H_
 #pragma once
 
 #include "ui/gfx/native_widget_types.h"
 
 namespace views {
-class BubbleDelegateView;
 class Widget;
 class WidgetDelegate;
 }
 
 namespace browser {
 
 // Create a frameless window for given |delegate|.
 views::Widget* CreateFramelessViewsWindow(gfx::NativeWindow parent,
                                           views::WidgetDelegate* delegate);
 
-// Create a bubble that will show even when chromeos screen is locked,
-// for a given |delegate|. Takes care of chromeos specific window
-// type setting. For bubbles that do not need to be shown when screen
-// is locked, use CreateViewsBubble instead.
-views::Widget* CreateViewsBubbleAboveLockScreen(
-    views::BubbleDelegateView* delegate);
-
 }  // namespace browser
 
 #endif  // CHROME_BROWSER_UI_VIEWS_WINDOW_H_