Change infobar creation to use a public static Create() method on the infobar delegate classes.

chrome/browser/nacl_host/nacl_infobar.cc

 // 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.
 
 #include "chrome/browser/nacl_host/nacl_infobar.h"
 
 #include "base/bind.h"
 #include "chrome/browser/api/infobars/infobar_service.h"
 #include "chrome/browser/api/infobars/simple_alert_infobar_delegate.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 12 matching lines @@
 
 void ShowInfobar(int render_process_id, int render_view_id,
                  int error_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(static_cast<PP_NaClError>(error_id) ==
         PP_NACL_MANIFEST_MISSING_ARCH);
   RenderViewHost* rvh = RenderViewHost::FromID(render_process_id,
                                                render_view_id);
   WebContents* wc = WebContents::FromRenderViewHost(rvh);
   InfoBarService* ibs = InfoBarService::FromWebContents(wc);
-  ibs->AddInfoBar(new SimpleAlertInfoBarDelegate(ibs, NULL,
-        l10n_util::GetStringUTF16(IDS_NACL_APP_MISSING_ARCH_MESSAGE), true));
+  SimpleAlertInfoBarDelegate::Create(ibs, NULL,
+        l10n_util::GetStringUTF16(IDS_NACL_APP_MISSING_ARCH_MESSAGE), true);
 }
 
 }  // namespace
 
 void ShowNaClInfobar(int render_process_id, int render_view_id,
                      int error_id) {
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
       base::Bind(&ShowInfobar, render_process_id, render_view_id,
                  error_id));
 }