replace OVERRIDE and FINAL with override and final in chrome/browser/extensions/

chrome/browser/extensions/api/top_sites/top_sites_api.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 CHROME_BROWSER_EXTENSIONS_API_TOP_SITES_TOP_SITES_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_TOP_SITES_TOP_SITES_API_H_
 
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "components/history/core/browser/history_types.h"
 
 namespace extensions {
 
 class TopSitesGetFunction : public ChromeAsyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("topSites.get", TOPSITES_GET)
 
   TopSitesGetFunction();
 
  protected:
   virtual ~TopSitesGetFunction();
 
   // ExtensionFunction:
-  virtual bool RunAsync() OVERRIDE;
+  virtual bool RunAsync() override;
 
  private:
   void OnMostVisitedURLsAvailable(const history::MostVisitedURLList& data);
 
   // For callbacks may be run after destruction.
   base::WeakPtrFactory<TopSitesGetFunction> weak_ptr_factory_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_TOP_SITES_TOP_SITES_API_H_