Add method for identifying different InfoBars

chrome/browser/extensions/api/debugger/debugger_api.cc

Index: chrome/browser/extensions/api/debugger/debugger_api.cc
diff --git a/chrome/browser/extensions/api/debugger/debugger_api.cc b/chrome/browser/extensions/api/debugger/debugger_api.cc
index bfa4cdcbcef91a257235281b417bf933cbe88e9a..887b8139ccb553907d377e50414358ccf747b8dd 100644
--- a/chrome/browser/extensions/api/debugger/debugger_api.cc
+++ b/chrome/browser/extensions/api/debugger/debugger_api.cc
@@ -98,6 +98,7 @@ class ExtensionDevToolsInfoBarDelegate : public ConfirmInfoBarDelegate {
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
+  std::string GetIdentifier() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
   void InfoBarDismissed() override;
   base::string16 GetMessageText() const override;
@@ -125,6 +126,10 @@ ExtensionDevToolsInfoBarDelegate::GetInfoBarType() const {
   return WARNING_TYPE;
 }
 
+std::string ExtensionDevToolsInfoBarDelegate::GetIdentifier() const {
+  return "ExtensionDevToolsInfoBarDelegate";
+}
+
 bool ExtensionDevToolsInfoBarDelegate::ShouldExpire(
     const NavigationDetails& details) const {
   return false;