Allow ChromeOS file selection dialog to be shown from shell windows.

chrome/browser/ui/extensions/shell_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_EXTENSIONS_SHELL_WINDOW_H_
 #define CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
@@ skipping 43 matching lines @@
     gfx::Size maximum_size;
   };
 
   static ShellWindow* Create(Profile* profile,
                              const extensions::Extension* extension,
                              const GURL& url,
                              const CreateParams& params);
 
   const SessionID& session_id() const { return session_id_; }
   const extensions::Extension* extension() const { return extension_; }
+  const TabContents* tab_contents() const { return contents_.get(); }
   content::WebContents* web_contents() const { return web_contents_; }
 
  protected:
   ShellWindow(Profile* profile,
               const extensions::Extension* extension,
               const GURL& url);
   virtual ~ShellWindow();
 
   // Called when the title of the window changes.
   virtual void UpdateWindowTitle() {}
@@ skipping 78 matching lines @@
   scoped_ptr<TabContents> contents_;
   // web_contents_ is owned by contents_.
   content::WebContents* web_contents_;
   content::NotificationRegistrar registrar_;
   ExtensionFunctionDispatcher extension_function_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindow);
 };
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_