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

chrome/browser/ui/cocoa/infobars/infobar_controller.mm

 // 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"  // for NOTREACHED()
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
@@ skipping 218 matching lines @@
       replaceSubview:labelPlaceholder_ with:label_.get()];
   labelPlaceholder_ = nil;  // Now released.
   [label_.get() setDelegate:self];
 }
 
 - (void)cleanUpAfterAnimation:(BOOL)finished {
   // Don't need to do any cleanup if the bar was animating open.
   if (!infoBarClosing_)
     return;
 
-  // Notify the delegate that the infobar was closed.  The delegate will delete
-  // itself as a result of InfoBarClosed(), so we null out its pointer.
+  // Notify the delegate that the infobar was closed.
   if (delegate_) {
-    delegate_->InfoBarClosed();
+    delete delegate_;
     delegate_ = NULL;
   }
 
   // If the animation ran to completion, then we need to remove ourselves from
   // the container.  If the animation was interrupted, then the container will
   // take care of removing us.
   // TODO(rohitrao): UGH!  This works for now, but should be cleaner.
   if (finished)
     [containerController_ removeController:self];
 }
@@ skipping 203 matching lines @@
   LinkInfoBarController* controller =
       [[LinkInfoBarController alloc] initWithDelegate:this owner:owner];
   return new InfoBar(controller, this);
 }
 
 InfoBar* ConfirmInfoBarDelegate::CreateInfoBar(InfoBarTabHelper* owner) {
   ConfirmInfoBarController* controller =
       [[ConfirmInfoBarController alloc] initWithDelegate:this owner:owner];
   return new InfoBar(controller, this);
 }