Abstract fullscreen exit bubble logic to bring Linux's behaviour in line with

chrome/browser/ui/views/frame/browser_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_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 32 matching lines @@
 class BookmarkBarView;
 class Browser;
 class BrowserBubble;
 class BrowserViewLayout;
 class ContentsContainer;
 class CompactLocationBar;
 class CompactNavigationBar;
 class CompactOptionsBar;
 class DownloadShelfView;
 class EncodingMenuModel;
-class FullscreenExitBubble;
+class FullscreenExitBubbleViews;
 class HtmlDialogUIDelegate;
 class InfoBarContainerView;
 class LocationBarView;
 class SideTabStrip;
 class StatusBubbleViews;
 class TabContentsContainer;
 class TabStripModel;
 class ToolbarView;
 class ZoomMenuModel;
 class Extension;
@@ skipping 619 matching lines @@
   // A mapping between accelerators and commands.
   std::map<views::Accelerator, int> accelerator_table_;
 
   // True if we have already been initialized.
   bool initialized_;
 
   // True if we should ignore requests to layout.  This is set while toggling
   // fullscreen mode on and off to reduce jankiness.
   bool ignore_layout_;
 
-  scoped_ptr<FullscreenExitBubble> fullscreen_bubble_;
+  scoped_ptr<FullscreenExitBubbleViews> fullscreen_bubble_;
 
 #if defined(OS_WIN)
   // The additional items we insert into the system menu.
   scoped_ptr<views::SystemMenuModel> system_menu_contents_;
   scoped_ptr<ZoomMenuModel> zoom_menu_contents_;
   scoped_ptr<EncodingMenuModel> encoding_menu_contents_;
   // The wrapped system menu itself.
   scoped_ptr<views::NativeMenuWin> system_menu_;
 
   // This object is used to perform periodic actions in a worker
@@ skipping 23 matching lines @@
 
   NotificationRegistrar registrar_;
 
   // Used to measure the loading spinner animation rate.
   base::TimeTicks last_animation_time_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_