Standardize usage of virtual/override/final in content/

content/shell/tools/plugin/Tests/PassDifferentNPPStruct.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) 2010 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 27 matching lines @@
 
 class PassDifferentNPPStruct : public PluginTest {
 public:
     PassDifferentNPPStruct(NPP npp, const string& identifier)
         : PluginTest(npp, identifier)
         , m_didReceiveInitialSetWindowCall(false)
     {
     }
 
 private:
-    virtual NPError NPP_SetWindow(NPWindow* window) override
-    {
+ NPError NPP_SetWindow(NPWindow* window) override {
         if (m_didReceiveInitialSetWindowCall)
             return NPERR_NO_ERROR;
         m_didReceiveInitialSetWindowCall = true;
 
         NPP oldNPP = m_npp;
         NPP_t differentNPP = *m_npp;
         m_npp = &differentNPP;
 
         NPBool privateMode;
         NPError error = NPN_GetValue(NPNVprivateModeBool, &privateMode);
 
         m_npp = oldNPP;
 
         if (error != NPERR_NO_ERROR) {
             log("NPN_GetValue(NPNVprivateModeBool) with a different NPP struct failed with error %d", error);
             notifyDone();
             return NPERR_GENERIC_ERROR;
         }
         log("NPN_GetValue(NPNVprivateModeBool) with a different NPP struct succeeded");
         notifyDone();
         return NPERR_NO_ERROR;
     }
 
     bool m_didReceiveInitialSetWindowCall;
 };
 
 static PluginTest::Register<PassDifferentNPPStruct> getValueNetscapeWindow("pass-different-npp-struct");