Add method for identifying different InfoBars

chrome/browser/permissions/permission_update_infobar_delegate_android.h

 // Copyright 2015 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 CHROME_BROWSER_PERMISSIONS_PERMISSION_UPDATE_INFOBAR_DELEGATE_ANDROID_H_
 #define CHROME_BROWSER_PERMISSIONS_PERMISSION_UPDATE_INFOBAR_DELEGATE_ANDROID_H_
 
 #include <jni.h>
 #include <string>
 #include <vector>
@@ skipping 49 matching lines @@
                           jboolean all_permissions_granted);
 
  private:
   PermissionUpdateInfoBarDelegate(
       content::WebContents* web_contents,
       const std::vector<std::string>& android_permissions,
       int permission_msg_id,
       const PermissionUpdatedCallback& callback);
   ~PermissionUpdateInfoBarDelegate() override;
 
+  // InfoBarDelegate:
+  std::string GetIdentifier() const override;
+
   // PermissionInfoBarDelegate:
   int GetIconId() const override;
   base::string16 GetMessageText() const override;
 
   // ConfirmInfoBarDelegate:
   int GetButtons() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool Accept() override;
   bool Cancel() override;
 
   // InfoBarDelegate:
   void InfoBarDismissed() override;
 
   base::android::ScopedJavaGlobalRef<jobject> java_delegate_;
   std::vector<std::string> android_permissions_;
   int permission_msg_id_;
   PermissionUpdatedCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionUpdateInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_UPDATE_INFOBAR_DELEGATE_ANDROID_H_