Work in progress: Adds MessagePumpDispatcher::ShouldExit(). This is used to handle the

chrome/browser/ui/views/simple_message_box_views.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_SIMPLE_MESSAGE_BOX_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_SIMPLE_MESSAGE_BOX_VIEWS_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
@@ skipping 52 matching lines @@
   SimpleMessageBoxViews(gfx::NativeWindow parent_window,
                         DialogType dialog_type,
                         const string16& title,
                         const string16& message);
   virtual ~SimpleMessageBoxViews();
 
   // MessageLoop::Dispatcher implementation.
   // Dispatcher method. This returns true if the menu was canceled, or
   // if the message is such that the menu should be closed.
   virtual bool Dispatch(const base::NativeEvent& event) OVERRIDE;
+  virtual bool ShouldExit() OVERRIDE;
 
   const DialogType dialog_type_;
   DispositionType disposition_;
   const string16 window_title_;
   views::MessageBoxView* message_box_view_;
 
   DISALLOW_COPY_AND_ASSIGN(SimpleMessageBoxViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_SIMPLE_MESSAGE_BOX_VIEWS_H_