Highlight background pages in task manager if user clicks View Background Pages.

chrome/browser/ui/browser_window.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_BROWSER_WINDOW_H_
 #define CHROME_BROWSER_UI_BROWSER_WINDOW_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 190 matching lines @@
 
   // Shows the About Chrome dialog box.
   virtual views::Window* ShowAboutChromeDialog() = 0;
 
   // Shows the Update Recommended dialog box.
   virtual void ShowUpdateChromeDialog() = 0;
 
   // Shows the Task manager.
   virtual void ShowTaskManager() = 0;
 
+  // Shows task information related to background pages.
+  virtual void ShowBackgroundPages() = 0;
+
   // Shows the Bookmark bubble. |url| is the URL being bookmarked,
   // |already_bookmarked| is true if the url is already bookmarked.
   virtual void ShowBookmarkBubble(const GURL& url, bool already_bookmarked) = 0;
 
   // Whether or not the shelf view is visible.
   virtual bool IsDownloadShelfVisible() const = 0;
 
   // Returns the DownloadShelf.
   virtual DownloadShelf* GetDownloadShelf() = 0;
 
@@ skipping 163 matching lines @@
 
   // Returns the ToolbarView.
   virtual ToolbarView* GetToolbarView() const = 0;
 #endif
 
  protected:
   virtual ~BrowserWindowTesting() {}
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_WINDOW_H_