Standardize usage of virtual/override/final in content/

content/shell/tools/plugin/Tests/PluginScriptableObjectOverridesAllProperties.cpp

 // Copyright 2014 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.
 
 /*
  * Copyright (C) 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 30 matching lines @@
     {
     }
 
 private:
     class PluginObject : public Object<PluginObject> {
     public:
         PluginObject()
         {
         }
 
-        virtual ~PluginObject()
-        {
-        }
+        ~PluginObject() override {}
 
         bool hasProperty(NPIdentifier propertyName)
         {
             return true;
         }
 
         bool getProperty(NPIdentifier propertyName, NPVariant* result)
         {
             static const char* message = "My name is ";
             char* propertyString = pluginTest()->NPN_UTF8FromIdentifier(propertyName);
 
             int bufferLength = strlen(propertyString) + strlen(message) + 1;
             char* resultBuffer = static_cast<char*>(pluginTest()->NPN_MemAlloc(bufferLength));
             snprintf(resultBuffer, bufferLength, "%s%s", message, propertyString);
 
             STRINGZ_TO_NPVARIANT(resultBuffer, *result);
 
             return true;
         }
     };
 
-    virtual NPError NPP_GetValue(NPPVariable variable, void *value) override
-    {
+    NPError NPP_GetValue(NPPVariable variable, void* value) override {
         if (variable != NPPVpluginScriptableNPObject)
             return NPERR_GENERIC_ERROR;
 
         *(NPObject**)value = PluginObject::create(this);
 
         return NPERR_NO_ERROR;
     }
 
 };
 
 static PluginTest::Register<PluginScriptableObjectOverridesAllProperties> pluginScriptableObjectOverridesAllProperties("plugin-scriptable-object-overrides-all-properties");