Update {virtual,override,final} to follow C++11 style.

chrome/browser/ui/android/infobars/translate_infobar.h

 // Copyright 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_UI_ANDROID_INFOBARS_TRANSLATE_INFOBAR_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_TRANSLATE_INFOBAR_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/basictypes.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/android/infobars/infobar_android.h"
 
 namespace translate {
 class TranslateInfoBarDelegate;
 }
 
 class TranslateInfoBar : public InfoBarAndroid {
  public:
   explicit TranslateInfoBar(
       scoped_ptr<translate::TranslateInfoBarDelegate> delegate);
-  virtual ~TranslateInfoBar();
+  ~TranslateInfoBar() override;
 
   // JNI methods specific to translate.
   void ApplyTranslateOptions(JNIEnv* env,
                              jobject obj,
                              int source_language_index,
                              int target_language_index,
                              bool always_translate,
                              bool never_translate_language,
                              bool never_translate_site);
 
  private:
   // InfoBarAndroid:
-  virtual base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
+  base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
       JNIEnv* env) override;
-  virtual void ProcessButton(int action,
-                             const std::string& action_value) override;
-  virtual void PassJavaInfoBar(InfoBarAndroid* source) override;
+  void ProcessButton(int action, const std::string& action_value) override;
+  void PassJavaInfoBar(InfoBarAndroid* source) override;
 
   void TransferOwnership(TranslateInfoBar* destination,
                          translate::TranslateStep new_type);
   void SetJavaDelegate(jobject delegate);
   bool ShouldDisplayNeverTranslateInfoBarOnCancel();
 
   translate::TranslateInfoBarDelegate* GetDelegate();
 
   base::android::ScopedJavaGlobalRef<jobject> java_translate_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(TranslateInfoBar);
 };
 
 // Registers the native methods through JNI.
 bool RegisterTranslateInfoBarDelegate(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_TRANSLATE_INFOBAR_H_