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 9f15d94d85035333b438ca15fe0a29a7505972fa..88bd78f8cea71a740d70ca7e57bdf413ce3f2d5b 100644
--- a/chrome/browser/ui/startup/default_browser_prompt.cc
+++ b/chrome/browser/ui/startup/default_browser_prompt.cc
@@ -64,6 +64,7 @@ class DefaultBrowserInfoBarDelegate : public ConfirmInfoBarDelegate {
 
   // ConfirmInfoBarDelegate:
   Type GetInfoBarType() const override;
+  std::string GetIdentifier() const override;
   int GetIconId() const override;
   gfx::VectorIconId GetVectorIconId() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
@@ -126,6 +127,10 @@ infobars::InfoBarDelegate::Type DefaultBrowserInfoBarDelegate::GetInfoBarType()
 #endif
 }
 
+std::string DefaultBrowserInfoBarDelegate::GetIdentifier() const {
+  return "DefaultBrowserInfoBarDelegate";
+}
+
 int DefaultBrowserInfoBarDelegate::GetIconId() const {
   return IDR_PRODUCT_LOGO_32;
 }