Add method for identifying different InfoBars

components/infobars/core/simple_alert_infobar_delegate.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_INFOBARS_CORE_SIMPLE_ALERT_INFOBAR_DELEGATE_H_
 #define COMPONENTS_INFOBARS_CORE_SIMPLE_ALERT_INFOBAR_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/strings/string16.h"
 #include "components/infobars/core/confirm_infobar_delegate.h"
 #include "ui/gfx/vector_icons_public.h"
 
 namespace infobars {
 class InfoBarManager;
 }
 
 class SimpleAlertInfoBarDelegate : public ConfirmInfoBarDelegate {
  public:
   // Creates a simple alert infobar and delegate and adds the infobar to
   // |infobar_manager|. If |vector_icon_id| is not VECTOR_ICON_NONE, it will be
   // shown; otherwise, |icon_id| (if present) will be used as the icon.
+  // |infobar_identifier| names what class triggered the infobar for metrics.
   static void Create(infobars::InfoBarManager* infobar_manager,
+                     const std::string& infobar_identifier,
                      int icon_id,
                      gfx::VectorIconId vector_icon_id,
                      const base::string16& message,
                      bool auto_expire);
 
  private:
-  SimpleAlertInfoBarDelegate(int icon_id,
+  SimpleAlertInfoBarDelegate(const std::string& infobar_identifier,
+                             int icon_id,
                              gfx::VectorIconId vector_icon_id,
                              const base::string16& message,
                              bool auto_expire);
   ~SimpleAlertInfoBarDelegate() override;
 
   // ConfirmInfoBarDelegate:
+  std::string GetIdentifier() const override;
   int GetIconId() const override;
   gfx::VectorIconId GetVectorIconId() const override;
   bool ShouldExpire(const NavigationDetails& details) const override;
   base::string16 GetMessageText() const override;
   int GetButtons() const override;
 
+  const std::string infobar_identifier_;
   const int icon_id_;
   gfx::VectorIconId vector_icon_id_;
   base::string16 message_;
   bool auto_expire_;  // Should it expire automatically on navigation?
 
   DISALLOW_COPY_AND_ASSIGN(SimpleAlertInfoBarDelegate);
 };
 
 #endif  // COMPONENTS_INFOBARS_CORE_SIMPLE_ALERT_INFOBAR_DELEGATE_H_