Fix virtual/override/final usage in the rest of Source/core/.

Source/core/inspector/InspectorConsoleAgent.h

 /*
  * Copyright (C) 2011 Google 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 26 matching lines @@
 class ConsoleMessageStorage;
 class InjectedScriptManager;
 class InspectorDebuggerAgent;
 
 typedef String ErrorString;
 
 class CORE_EXPORT InspectorConsoleAgent : public InspectorBaseAgent<InspectorConsoleAgent, InspectorFrontend::Console>, public InspectorBackendDispatcher::ConsoleCommandHandler {
     WTF_MAKE_NONCOPYABLE(InspectorConsoleAgent);
 public:
     explicit InspectorConsoleAgent(InjectedScriptManager*);
-    virtual ~InspectorConsoleAgent();
+    ~InspectorConsoleAgent() override;
     DECLARE_VIRTUAL_TRACE();
 
     void setDebuggerAgent(InspectorDebuggerAgent* debuggerAgent) { m_debuggerAgent = debuggerAgent; }
 
     void enable(ErrorString*) override;
     bool enabled() { return m_enabled; }
 
     void disable(ErrorString*) override;
-    void restore() override final;
+    void restore() final;
 
     void addMessageToConsole(ConsoleMessage*);
     void consoleMessagesCleared();
 
 protected:
     void sendConsoleMessageToFrontend(ConsoleMessage*, bool generatePreview);
     virtual ConsoleMessageStorage* messageStorage() = 0;
 
     virtual void enableStackCapturingIfNeeded() = 0;
     virtual void disableStackCapturingIfNeeded() = 0;
 
     RawPtrWillBeMember<InjectedScriptManager> m_injectedScriptManager;
     RawPtrWillBeMember<InspectorDebuggerAgent> m_debuggerAgent;
     bool m_enabled;
 };
 
 } // namespace blink
 
 
 #endif // !defined(InspectorConsoleAgent_h)