Use the default dispatcher where possible for nested message loops.

chrome/browser/ui/views/first_run_dialog.h

 // Copyright 2014 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_FIRST_RUN_DIALOG_H_
 #define CHROME_BROWSER_UI_VIEWS_FIRST_RUN_DIALOG_H_
 
-#include "base/message_loop/message_pump_dispatcher.h"
 #include "ui/views/controls/link_listener.h"
 #include "ui/views/window/dialog_delegate.h"
 
 class Profile;
 
 namespace views {
 class Checkbox;
 class Link;
 }
 
 class FirstRunDialog : public views::DialogDelegateView,
-                       public views::LinkListener,
-                       public base::MessagePumpDispatcher {
+                       public views::LinkListener {
  public:
   // Displays the first run UI for reporting opt-in, import data etc.
   // Returns true if the dialog was shown.
   static bool Show(Profile* profile);
 
  private:
   explicit FirstRunDialog(Profile* profile);
   virtual ~FirstRunDialog();
 
+  // This terminates the nested message-loop.
+  void Done();
+
   // views::DialogDelegate:
   virtual views::View* CreateExtraView() OVERRIDE;
   virtual void OnClosed() OVERRIDE;
   virtual bool Accept() OVERRIDE;
   virtual int GetDialogButtons() const OVERRIDE;
 
   // views::LinkListener:
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
-  // Overridden from MessagePumpDispatcher:
-  virtual uint32_t Dispatch(const base::NativeEvent& event) OVERRIDE;
-
   Profile* profile_;
   views::Checkbox* make_default_;
   views::Checkbox* report_crashes_;
 
-  // Set to false as soon as the user clicks a dialog button; this tells the
-  // dispatcher we're done.
-  bool should_show_dialog_;
+  DISALLOW_COPY_AND_ASSIGN(FirstRunDialog);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FIRST_RUN_DIALOG_H_