Add method for identifying different InfoBars

chrome/browser/extensions/api/messaging/incognito_connectability.cc

Index: chrome/browser/extensions/api/messaging/incognito_connectability.cc
diff --git a/chrome/browser/extensions/api/messaging/incognito_connectability.cc b/chrome/browser/extensions/api/messaging/incognito_connectability.cc
index d647ae40bbae5cee39bbe005c642dc448e339e6d..65ba02a43a3f93f2dbe53fc02227de7f8eadaaca 100644
--- a/chrome/browser/extensions/api/messaging/incognito_connectability.cc
+++ b/chrome/browser/extensions/api/messaging/incognito_connectability.cc
@@ -50,6 +50,7 @@ class IncognitoConnectabilityInfoBarDelegate : public ConfirmInfoBarDelegate {
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
+  std::string GetIdentifier() const override;
   base::string16 GetMessageText() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool Accept() override;
@@ -91,6 +92,10 @@ IncognitoConnectabilityInfoBarDelegate::GetInfoBarType() const {
   return PAGE_ACTION_TYPE;
 }
 
+std::string IncognitoConnectabilityInfoBarDelegate::GetIdentifier() const {
+  return "IncognitoConnectabilityInfoBarDelegate";
+}
+
 base::string16 IncognitoConnectabilityInfoBarDelegate::GetMessageText() const {
   return message_;
 }