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

chrome/browser/ui/android/infobars/infobar_android.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_INFOBAR_ANDROID_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_INFOBAR_ANDROID_H_
 
 #include <string>
 
 #include "base/android/jni_weak_ref.h"
@@ skipping 17 matching lines @@
     ACTION_NONE = 0,
     // Confirm infobar
     ACTION_OK = 1,
     ACTION_CANCEL = 2,
     // Translate infobar
     ACTION_TRANSLATE = 3,
     ACTION_TRANSLATE_SHOW_ORIGINAL = 4,
   };
 
   explicit InfoBarAndroid(scoped_ptr<infobars::InfoBarDelegate> delegate);
-  virtual ~InfoBarAndroid();
+  ~InfoBarAndroid() override;
 
   // InfoBar:
   virtual base::android::ScopedJavaLocalRef<jobject> CreateRenderInfoBar(
       JNIEnv* env) = 0;
 
   void set_java_infobar(const base::android::JavaRef<jobject>& java_info_bar);
   bool HasSetJavaInfoBar() const;
 
   // Tells the Java-side counterpart of this InfoBar to point to the replacement
   // InfoBar instead of this one.
@@ skipping 26 matching lines @@
  private:
   base::android::ScopedJavaGlobalRef<jobject> java_info_bar_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarAndroid);
 };
 
 // Registers the NativeInfoBar's native methods through JNI.
 bool RegisterNativeInfoBar(JNIEnv* env);
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_INFOBAR_ANDROID_H_