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

chrome/browser/extensions/token_cache/token_cache_service.h

 // Copyright (c) 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 CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 21 matching lines @@
   // timeout of 0, we never expire the token.  After time_to_live expires, the
   // token will be expired.
   void StoreToken(const std::string& token_name, const std::string& token_value,
                   base::TimeDelta time_to_live);
 
   // Retrieve a token for the currently logged in user.  This returns an empty
   // string if the token was not found or timed out.
   std::string RetrieveToken(const std::string& token_name);
 
   // KeyedService:
-  virtual void Shutdown() OVERRIDE;
+  virtual void Shutdown() override;
 
  private:
   friend class TokenCacheTest;
   FRIEND_TEST_ALL_PREFIXES(TokenCacheTest, SignoutTest);
 
   // SigninManagerBase::Observer:
   virtual void GoogleSignedOut(const std::string& account_id,
-                               const std::string& username) OVERRIDE;
+                               const std::string& username) override;
 
   struct TokenCacheData {
     std::string token;
     base::Time expiration_time;
   };
 
   // Map the token name (string) to token data.
   std::map<std::string, TokenCacheData> token_cache_;
   const Profile* const profile_;
 
   DISALLOW_COPY_AND_ASSIGN(TokenCacheService);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_TOKEN_CACHE_TOKEN_CACHE_SERVICE_H_