Add method for identifying different InfoBars

chrome/browser/ui/omnibox/alternate_nav_infobar_delegate.cc

 // 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.
 
 #include "chrome/browser/ui/omnibox/alternate_nav_infobar_delegate.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/autocomplete/shortcuts_backend_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
@@ skipping 85 matching lines @@
   // We should always close, even if the navigation did not occur within this
   // WebContents.
   return true;
 }
 
 infobars::InfoBarDelegate::Type
 AlternateNavInfoBarDelegate::GetInfoBarType() const {
   return PAGE_ACTION_TYPE;
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+AlternateNavInfoBarDelegate::GetIdentifier() const {
+  return ALTERNATE_NAV_INFOBAR_DELEGATE;
+}
+
 int AlternateNavInfoBarDelegate::GetIconId() const {
   return IDR_INFOBAR_ALT_NAV_URL;
 }
 
 gfx::VectorIconId AlternateNavInfoBarDelegate::GetVectorIconId() const {
 #if defined(OS_MACOSX)
   return gfx::VectorIconId::VECTOR_ICON_NONE;
 #else
   return gfx::VectorIconId::GLOBE;
 #endif
 }