Add OVERRIDE to chrome/browser/ui/gtk/.

chrome/browser/ui/gtk/infobars/before_translate_infobar_gtk.h

 // Copyright (c) 2011 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_UI_GTK_INFOBARS_BEFORE_TRANSLATE_INFOBAR_GTK_H_
 #define CHROME_BROWSER_UI_GTK_INFOBARS_BEFORE_TRANSLATE_INFOBAR_GTK_H_
 #pragma once
 
+#include "base/compiler_specific.h"
 #include "chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h"
 
 class TranslateInfoBarDelegate;
 
 class BeforeTranslateInfoBar : public TranslateInfoBarBase {
  public:
   BeforeTranslateInfoBar(InfoBarTabHelper* owner,
                          TranslateInfoBarDelegate* delegate);
   virtual ~BeforeTranslateInfoBar();
 
   // Overridden from TranslateInfoBarBase:
-  virtual void Init();
+  virtual void Init() OVERRIDE;
 
  protected:
-  virtual bool ShowOptionsMenuButton() const;
+  virtual bool ShowOptionsMenuButton() const OVERRIDE;
 
  private:
   CHROMEGTK_CALLBACK_0(BeforeTranslateInfoBar, void, OnLanguageModified);
   CHROMEGTK_CALLBACK_0(BeforeTranslateInfoBar, void, OnAcceptPressed);
   CHROMEGTK_CALLBACK_0(BeforeTranslateInfoBar, void, OnDenyPressed);
   CHROMEGTK_CALLBACK_0(BeforeTranslateInfoBar, void, OnNeverTranslatePressed);
   CHROMEGTK_CALLBACK_0(BeforeTranslateInfoBar, void, OnAlwaysTranslatePressed);
 
   DISALLOW_COPY_AND_ASSIGN(BeforeTranslateInfoBar);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_INFOBARS_BEFORE_TRANSLATE_INFOBAR_GTK_H_