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

chrome/browser/extensions/api/browser/browser_api.h

 // Copyright 2014 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_BROWSER_BROWSER_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_BROWSER_BROWSER_API_H_
 
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/common/extensions/api/browser.h"
 
 namespace extensions {
 namespace api {
 
 class BrowserOpenTabFunction : public ChromeSyncExtensionFunction {
  public:
   DECLARE_EXTENSION_FUNCTION("browser.openTab", BROWSER_OPENTAB)
 
  protected:
   virtual ~BrowserOpenTabFunction();
 
-  virtual bool RunSync() OVERRIDE;
+  virtual bool RunSync() override;
 };
 
 }  // namespace api
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_BROWSER_BROWSER_API_H_