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

chrome/browser/autofill/android/personal_data_manager_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_AUTOFILL_ANDROID_PERSONAL_DATA_MANAGER_ANDROID_H_
 #define CHROME_BROWSER_AUTOFILL_ANDROID_PERSONAL_DATA_MANAGER_ANDROID_H_
 
 #include "base/android/jni_weak_ref.h"
 #include "base/android/scoped_java_ref.h"
 #include "components/autofill/core/browser/personal_data_manager.h"
@@ skipping 70 matching lines @@
       JNIEnv* env,
       jobject unused_obj);
 
   // Removes the profile or credit card represented by |jguid|.
   void RemoveByGUID(JNIEnv* env, jobject unused_obj, jstring jguid);
 
   // Rests all unmasked cards back to the masked state.
   void ClearUnmaskedCache(JNIEnv* env, jobject unused_obj);
 
   // PersonalDataManagerObserver:
-  virtual void OnPersonalDataChanged() override;
+  void OnPersonalDataChanged() override;
 
   // Registers the JNI bindings for this class.
   static bool Register(JNIEnv* env);
 
  private:
-  virtual ~PersonalDataManagerAndroid();
+  ~PersonalDataManagerAndroid() override;
 
   // Pointer to the java counterpart.
   JavaObjectWeakGlobalRef weak_java_obj_;
 
   // Pointer to the PersonalDataManager for the main profile.
   PersonalDataManager* personal_data_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(PersonalDataManagerAndroid);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_AUTOFILL_ANDROID_PERSONAL_DATA_MANAGER_ANDROID_H_