Add method for identifying different InfoBars

chrome/browser/devtools/devtools_ui_bindings.cc

Index: chrome/browser/devtools/devtools_ui_bindings.cc
diff --git a/chrome/browser/devtools/devtools_ui_bindings.cc b/chrome/browser/devtools/devtools_ui_bindings.cc
index a86a9242593c9b2681312f36deabe313aced54df..f6e986daf293b5ef14eb8c86b5bb11e702235fec 100644
--- a/chrome/browser/devtools/devtools_ui_bindings.cc
+++ b/chrome/browser/devtools/devtools_ui_bindings.cc
@@ -121,6 +121,7 @@ class DevToolsConfirmInfoBarDelegate : public ConfirmInfoBarDelegate {
   ~DevToolsConfirmInfoBarDelegate() override;
 
  private:
+  std::string GetIdentifier() const override;
   base::string16 GetMessageText() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool Accept() override;
@@ -145,6 +146,10 @@ DevToolsConfirmInfoBarDelegate::~DevToolsConfirmInfoBarDelegate() {
     callback_.Run(false);
 }
 
+std::string DevToolsConfirmInfoBarDelegate::GetIdentifier() const {
+  return "DevToolsConfirmInfoBarDelegate";
+}
+
 base::string16 DevToolsConfirmInfoBarDelegate::GetMessageText() const {
   return message_;
 }