Infobar system refactor.

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

 // Copyright 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.
 
 #import "chrome/browser/ui/cocoa/infobars/alternate_nav_infobar_controller.h"
 
 #include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
 #import "chrome/browser/ui/cocoa/hyperlink_text_view.h"
 #include "chrome/browser/ui/cocoa/infobars/infobar_cocoa.h"
@@ skipping 39 matching lines @@
   WindowOpenDisposition disposition =
       ui::WindowOpenDispositionFromNSEvent([NSApp currentEvent]);
   AlternateNavInfoBarDelegate* delegate =
       static_cast<AlternateNavInfoBarDelegate*>([self delegate]);
   if (delegate->LinkClicked(disposition))
     [self removeSelf];
 }
 
 @end
 
-InfoBar* AlternateNavInfoBarDelegate::CreateInfoBar(InfoBarService* owner) {
-  scoped_ptr<InfoBarCocoa> infobar(new InfoBarCocoa(owner, this));
+// static
+scoped_ptr<InfoBar> AlternateNavInfoBarDelegate::CreateInfoBar(
+    scoped_ptr<AlternateNavInfoBarDelegate> delegate) {
+  scoped_ptr<InfoBarCocoa> infobar(
+      new InfoBarCocoa(delegate.PassAs<InfoBarDelegate>()));
   base::scoped_nsobject<AlternateNavInfoBarController> controller(
       [[AlternateNavInfoBarController alloc] initWithInfoBar:infobar.get()]);
   infobar->set_controller(controller);
-  return infobar.release();
+  return infobar.PassAs<InfoBar>();
 }