Replacing the OVERRIDE with override in chrome/common

chrome/common/extensions/manifest_handlers/theme_handler.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_COMMON_EXTENSIONS_MANIFEST_HANDLERS_THEME_HANDLER_H_
 #define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_THEME_HANDLER_H_
 
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_handler.h"
 
@@ skipping 27 matching lines @@
   // A map of display properties.
   scoped_ptr<base::DictionaryValue> theme_display_properties_;
 };
 
 // Parses the "theme" manifest key.
 class ThemeHandler : public ManifestHandler {
  public:
   ThemeHandler();
   virtual ~ThemeHandler();
 
-  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;
 
   DISALLOW_COPY_AND_ASSIGN(ThemeHandler);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_THEME_HANDLER_H_