Fix issue 174250, crash when reloading packaged app.

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_
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
 #include "chrome/browser/extensions/extension_keybinding_registry.h"
@@ skipping 115 matching lines @@
   virtual ~ShellWindow();
 
  private:
   // PlatformAppBrowserTest needs access to web_contents()
   friend class extensions::PlatformAppBrowserTest;
 
   // Instantiates a platform-specific ShellWindow subclass (one implementation
   // per platform). Public users of ShellWindow should use ShellWindow::Create.
   void Init(const GURL& url, const CreateParams& params);
 
+  // Remove the window from the ShellWindowRegistry and tell the native
+  // window to close. The native window won't be actually closed until
+  // OnNativeClose().
+  void Close();
+
   // content::WebContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // content::WebContentsDelegate implementation.
   virtual void CloseContents(content::WebContents* contents) OVERRIDE;
   virtual bool ShouldSuppressDialogs() OVERRIDE;
   virtual void WebIntentDispatch(
       content::WebContents* web_contents,
       content::WebIntentsDispatcher* intents_dispatcher) OVERRIDE;
   virtual void RunFileChooser(
@@ skipping 94 matching lines @@
   scoped_ptr<NativeAppWindow> native_app_window_;
 
   base::WeakPtrFactory<ShellWindow> weak_ptr_factory_;
 
   base::WeakPtrFactory<ShellWindow> image_loader_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindow);
 };
 
 #endif  // CHROME_BROWSER_UI_EXTENSIONS_SHELL_WINDOW_H_