Add method for identifying different InfoBars

components/translate/core/browser/translate_infobar_delegate.cc

 // Copyright 2014 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 "components/translate/core/browser/translate_infobar_delegate.h"
 
 #include <algorithm>
 
 #include "base/i18n/string_compare.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 31 matching lines @@
 const int kNeverTranslateMinCount = 3;
 #endif
 
 }  // namespace
 
 const size_t TranslateInfoBarDelegate::kNoIndex = TranslateUIDelegate::kNoIndex;
 
 TranslateInfoBarDelegate::~TranslateInfoBarDelegate() {
 }
 
+std::string TranslateInfoBarDelegate::GetIdentifier() const {
+  return "TranslateInfoBarDelegate";
+}
+
 // static
 void TranslateInfoBarDelegate::Create(
     bool replace_existing_infobar,
     const base::WeakPtr<TranslateManager>& translate_manager,
     infobars::InfoBarManager* infobar_manager,
     bool is_off_the_record,
     translate::TranslateStep step,
     const std::string& original_language,
     const std::string& target_language,
     TranslateErrors::Type error_type,
@@ skipping 302 matching lines @@
   TranslationDeclined();
   UMA_HISTOGRAM_BOOLEAN("Translate.DeclineTranslateCloseInfobar", true);
 }
 
 TranslateInfoBarDelegate*
     TranslateInfoBarDelegate::AsTranslateInfoBarDelegate() {
   return this;
 }
 
 }  // namespace translate