Standardize usage of virtual/override/final in components/

components/autofill/core/browser/autofill_data_model.h

 // Copyright 2013 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_AUTOFILL_CORE_BROWSER_AUTOFILL_DATA_MODEL_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DATA_MODEL_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
 #include "components/autofill/core/browser/form_group.h"
 
 namespace autofill {
 
 class AutofillType;
 
 // This class is an interface for the primary data models that back Autofill.
 // The information in objects of this class is managed by the
 // PersonalDataManager.
 class AutofillDataModel : public FormGroup {
  public:
   AutofillDataModel(const std::string& guid, const std::string& origin);
-  virtual ~AutofillDataModel();
+  ~AutofillDataModel() override;
 
   // Returns the string that should be auto-filled into a text field given the
   // |type| of that field, localized to the given |app_locale| if appropriate.
   // If the data model supports multiple values for the given |type|, returns
   // the |variant|th value for the |type|.
   virtual base::string16 GetInfoForVariant(const AutofillType& type,
                                            size_t variant,
                                            const std::string& app_locale) const;
 
   // Returns true if the data in this model was entered directly by the user,
@@ skipping 15 matching lines @@
   //       automatically aggregated, e.g. https://www.example.com/register,
   //   (b) some other non-empty string, which cannot be interpreted as a web
   //       URL, identifying the origin for non-aggregated data, or
   //   (c) an empty string, indicating that the origin for this data is unknown.
   std::string origin_;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DATA_MODEL_H_