Add method for identifying different InfoBars

chrome/browser/ui/cocoa/infobars/mock_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/ui/cocoa/infobars/mock_confirm_infobar_delegate.h"
 
 #include "base/strings/utf_string_conversions.h"
 
 const char MockConfirmInfoBarDelegate::kMessage[] = "MockConfirmInfoBarMessage";
 
 MockConfirmInfoBarDelegate::MockConfirmInfoBarDelegate(Owner* owner)
     : ConfirmInfoBarDelegate(),
       owner_(owner),
       closes_on_action_(true),
       icon_accessed_(false),
       message_text_accessed_(false),
       link_text_accessed_(false),
       ok_clicked_(false),
       cancel_clicked_(false),
       link_clicked_(false) {
 }
 
 MockConfirmInfoBarDelegate::~MockConfirmInfoBarDelegate() {
   if (owner_)
     owner_->OnInfoBarDelegateClosed(this);
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+MockConfirmInfoBarDelegate::GetIdentifier() const {
+  return TEST_INFOBAR;
+}
+
 int MockConfirmInfoBarDelegate::GetIconId() const {
   icon_accessed_ = true;
   return kNoIconID;
 }
 
 base::string16 MockConfirmInfoBarDelegate::GetMessageText() const {
   message_text_accessed_ = true;
   return base::ASCIIToUTF16(kMessage);
 }
 
@@ skipping 15 matching lines @@
 base::string16 MockConfirmInfoBarDelegate::GetLinkText() const {
   link_text_accessed_ = true;
   return base::string16();
 }
 
 bool MockConfirmInfoBarDelegate::LinkClicked(
     WindowOpenDisposition disposition) {
   link_clicked_ = true;
   return closes_on_action_;
 }