Add method for identifying different InfoBars

chrome/browser/devtools/global_confirm_info_bar.cc

Index: chrome/browser/devtools/global_confirm_info_bar.cc
diff --git a/chrome/browser/devtools/global_confirm_info_bar.cc b/chrome/browser/devtools/global_confirm_info_bar.cc
index 1a88612b17337d43cf6cdce75c20b02f568afefb..79dab812d62c6eb0ebf3ac2f74fda0e6cf1c98a3 100644
--- a/chrome/browser/devtools/global_confirm_info_bar.cc
+++ b/chrome/browser/devtools/global_confirm_info_bar.cc
@@ -25,6 +25,7 @@ class GlobalConfirmInfoBar::DelegateProxy : public ConfirmInfoBarDelegate {
   friend class GlobalConfirmInfoBar;
 
   // ConfirmInfoBarDelegate overrides
+  infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   base::string16 GetMessageText() const override;
   int GetButtons() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
@@ -51,6 +52,12 @@ GlobalConfirmInfoBar::DelegateProxy::DelegateProxy(
 GlobalConfirmInfoBar::DelegateProxy::~DelegateProxy() {
 }
 
+infobars::InfoBarDelegate::InfoBarIdentifier
+GlobalConfirmInfoBar::DelegateProxy::GetIdentifier() const {
+  return global_info_bar_ ? global_info_bar_->delegate_->GetIdentifier()
+                          : INVALID;
+}
+
 base::string16 GlobalConfirmInfoBar::DelegateProxy::GetMessageText() const {
   return global_info_bar_ ? global_info_bar_->delegate_->GetMessageText()
                           : base::string16();