replace OVERRIDE and FINAL with override and final in extensions/

extensions/common/manifest_handlers/icons_handler.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 EXTENSIONS_COMMON_MANIFEST_HANDLERS_ICONS_HANDLER_H_
 #define EXTENSIONS_COMMON_MANIFEST_HANDLERS_ICONS_HANDLER_H_
 
 #include <string>
 
 #include "extensions/common/extension.h"
@@ skipping 21 matching lines @@
                          int size,
                          ExtensionIconSet::MatchType match_type);
 };
 
 // Parses the "icons" manifest key.
 class IconsHandler : public ManifestHandler {
  public:
   IconsHandler();
   virtual ~IconsHandler();
 
-  virtual bool Parse(Extension* extension, base::string16* error) OVERRIDE;
+  virtual bool Parse(Extension* extension, base::string16* error) override;
   virtual bool Validate(const Extension* extension,
                         std::string* error,
-                        std::vector<InstallWarning>* warnings) const OVERRIDE;
+                        std::vector<InstallWarning>* warnings) const override;
 
  private:
-  virtual const std::vector<std::string> Keys() const OVERRIDE;
+  virtual const std::vector<std::string> Keys() const override;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_MANIFEST_HANDLERS_ICONS_HANDLER_H_