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 e36fb726428217fcc5a48f19b04a458e8bbecc48..7e238b2ae90bc7fb928653005ecd2bbb588b846d 100644
--- a/chrome/browser/extensions/api/debugger/debugger_api.cc
+++ b/chrome/browser/extensions/api/debugger/debugger_api.cc
@@ -101,6 +101,7 @@ class ExtensionDevToolsInfoBarDelegate : public ConfirmInfoBarDelegate {
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
   void InfoBarDismissed() override;
   base::string16 GetMessageText() const override;
@@ -128,6 +129,11 @@ ExtensionDevToolsInfoBarDelegate::GetInfoBarType() const {
   return WARNING_TYPE;
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+ExtensionDevToolsInfoBarDelegate::GetIdentifier() const {
+  return EXTENSION_DEV_TOOLS_INFOBAR_DELEGATE;
+}
+
 bool ExtensionDevToolsInfoBarDelegate::ShouldExpire(
     const NavigationDetails& details) const {
   return false;