Add method for identifying different InfoBars

chrome/browser/extensions/theme_installed_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/extensions/theme_installed_infobar_delegate.h"
 
 #include <stddef.h>
 #include <string>
 #include <utility>
 
@@ skipping 93 matching lines @@
   registrar_.RemoveAll();
 
   theme_service_->OnInfobarDestroyed();
 }
 
 infobars::InfoBarDelegate::Type
 ThemeInstalledInfoBarDelegate::GetInfoBarType() const {
   return PAGE_ACTION_TYPE;
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+ThemeInstalledInfoBarDelegate::GetIdentifier() const {
+  return THEME_INSTALLED_INFOBAR_DELEGATE;
+}
+
 int ThemeInstalledInfoBarDelegate::GetIconId() const {
   return IDR_INFOBAR_THEME;
 }
 
 gfx::VectorIconId ThemeInstalledInfoBarDelegate::GetVectorIconId() const {
 #if defined(OS_MACOSX)
   return gfx::VectorIconId::VECTOR_ICON_NONE;
 #else
   return gfx::VectorIconId::PAINTBRUSH;
 #endif
@@ skipping 39 matching lines @@
 void ThemeInstalledInfoBarDelegate::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK_EQ(chrome::NOTIFICATION_BROWSER_THEME_CHANGED, type);
   // If the new theme is different from what this info bar is associated with,
   // close this info bar since it is no longer relevant.
   if (theme_id_ != theme_service_->GetThemeID())
     infobar()->RemoveSelf();
 }