Remove InfoBarDelegate::InfoBarClosed(), delete InfoBars directly.

chrome/browser/infobars/infobar_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 CHROME_BROWSER_INFOBARS_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_INFOBARS_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/string16.h"
@@ skipping 52 matching lines @@
 
   // Returns true if the InfoBar should be closed automatically after the page
   // is navigated. The default behavior is to return true if the
   // navigation is to a new page (not including reloads).
   virtual bool ShouldExpire(
       const content::LoadCommittedDetails& details) const;
 
   // Called when the user clicks on the close button to dismiss the infobar.
   virtual void InfoBarDismissed();
 
-  // Called after the InfoBar is closed. Deletes |this|.
-  // TODO(pkasting): Get rid of this and delete delegates directly.
-  void InfoBarClosed();
-
   // Return the icon to be shown for this InfoBar. If the returned Image is
   // NULL, no icon is shown.
   virtual gfx::Image* GetIcon() const;
 
   // Returns the type of the infobar.  The type determines the appearance (such
   // as background color) of the infobar.
   virtual Type GetInfoBarType() const;
 
   // Type-checking downcast routines:
   virtual ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate();
@@ skipping 27 matching lines @@
   // opened for. Used to help expire on navigations.
   int contents_unique_id_;
 
   // TODO(pkasting): Remove.
   InfoBarTabHelper* owner_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_INFOBARS_INFOBAR_DELEGATE_H_