Infobar system refactor.

chrome/browser/ui/startup/obsolete_os_infobar_delegate.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_STARTUP_OBSOLETE_OS_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_UI_STARTUP_OBSOLETE_OS_INFOBAR_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/infobars/confirm_infobar_delegate.h"
 #include "url/gurl.h"
 
 class InfoBarService;
 
 // An infobar that displays a message saying the system is obsolete, along with
 // a "Learn More" link.
 class ObsoleteOSInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
-  // Creates an obsolete OS infobar delegate and adds it to |infobar_service|.
+  // Creates an obsolete OS infobar and delegate and adds the infobar to
+  // |infobar_service|.
   static void Create(InfoBarService* infobar_service);
 
  private:
-  explicit ObsoleteOSInfoBarDelegate(InfoBarService* infobar_service);
+  ObsoleteOSInfoBarDelegate();
   virtual ~ObsoleteOSInfoBarDelegate();
 
   virtual string16 GetMessageText() const OVERRIDE;
   virtual int GetButtons() const OVERRIDE;
   virtual string16 GetLinkText() const OVERRIDE;
   virtual bool LinkClicked(WindowOpenDisposition disposition) OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(ObsoleteOSInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_UI_STARTUP_OBSOLETE_OS_INFOBAR_DELEGATE_H_