Add method for identifying different InfoBars

chrome/browser/ui/startup/default_browser_prompt.cc

Index: chrome/browser/ui/startup/default_browser_prompt.cc
diff --git a/chrome/browser/ui/startup/default_browser_prompt.cc b/chrome/browser/ui/startup/default_browser_prompt.cc
index 3a17518d646e8a39f82449c15f1c4ff7192dbad7..9443190fb389a0fbd08a4b9841b19c5d33bbfcce 100644
--- a/chrome/browser/ui/startup/default_browser_prompt.cc
+++ b/chrome/browser/ui/startup/default_browser_prompt.cc
@@ -66,6 +66,7 @@ class DefaultBrowserInfoBarDelegate : public ConfirmInfoBarDelegate {
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   int GetIconId() const override;
   gfx::VectorIconId GetVectorIconId() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
@@ -128,6 +129,11 @@ infobars::InfoBarDelegate::Type DefaultBrowserInfoBarDelegate::GetInfoBarType()
 #endif
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+DefaultBrowserInfoBarDelegate::GetIdentifier() const {
+  return DEFAULT_BROWSER_INFOBAR_DELEGATE;
+}
+
 int DefaultBrowserInfoBarDelegate::GetIconId() const {
   return IDR_PRODUCT_LOGO_32;
 }