Move Infobars core files to the Infobars component

chrome/browser/infobars/confirm_infobar_delegate.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/infobars/confirm_infobar_delegate.h"
 
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
+using infobars::InfoBarDelegate;
+
 ConfirmInfoBarDelegate::~ConfirmInfoBarDelegate() {
 }
 
 InfoBarDelegate::InfoBarAutomationType
     ConfirmInfoBarDelegate::GetInfoBarAutomationType() const {
   return CONFIRM_INFOBAR;
 }
 
 int ConfirmInfoBarDelegate::GetButtons() const {
   return BUTTON_OK | BUTTON_CANCEL;
@@ skipping 40 matching lines @@
 bool ConfirmInfoBarDelegate::EqualsDelegate(InfoBarDelegate* delegate) const {
   ConfirmInfoBarDelegate* confirm_delegate =
       delegate->AsConfirmInfoBarDelegate();
   return confirm_delegate &&
       (confirm_delegate->GetMessageText() == GetMessageText());
 }
 
 ConfirmInfoBarDelegate* ConfirmInfoBarDelegate::AsConfirmInfoBarDelegate() {
   return this;
 }