Fix crashes related to the extension uninstall dialog.

views/window/dialog_delegate.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 VIEWS_WINDOW_DIALOG_DELEGATE_H_
 #define VIEWS_WINDOW_DIALOG_DELEGATE_H_
 #pragma once
 
 #include "ui/base/accessibility/accessibility_types.h"
 #include "ui/base/message_box_flags.h"
@@ skipping 69 matching lines @@
   // For Dialog boxes, if there is a "Cancel" button, this is called when the
   // user presses the "Cancel" button or the Close button on the window or
   // in the system menu, or presses the Esc key. This function should return
   // true if the window can be closed after it returns, or false if it must
   // remain open.
   virtual bool Cancel();
 
   // For Dialog boxes, this is called when the user presses the "OK" button,
   // or the Enter key.  Can also be called on Esc key or close button
   // presses if there is no "Cancel" button.  This function should return
-  // true if the window can be closed after the window can be closed after
-  // it returns, or false if it must remain open.  If |window_closing| is
-  // true, it means that this handler is being called because the window is
-  // being closed (e.g.  by Window::Close) and there is no Cancel handler,
-  // so Accept is being called instead.
+  // true if the window can be closed after it returns, or false if it must
+  // remain open.  If |window_closing| is true, it means that this handler is
+  // being called because the window is being closed (e.g.  by Window::Close)
+  // and there is no Cancel handler, so Accept is being called instead.
   virtual bool Accept(bool window_closing);
   virtual bool Accept();
 
   // Overridden from WindowDelegate:
   virtual View* GetInitiallyFocusedView() OVERRIDE;
   virtual ClientView* CreateClientView(Widget* widget) OVERRIDE;
 
   // Called when the window has been closed.
   virtual void OnClose() {}
 
@@ skipping 21 matching lines @@
   virtual const Widget* GetWidget() const OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DialogDelegateView);
 };
 
 
 }  // namespace views
 
 #endif  // VIEWS_WINDOW_DIALOG_DELEGATE_H_