Fix virtual/override/final usage in Source/web/.

Source/web/InspectorOverlayImpl.cpp

 /*
  * 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
@@ skipping 52 matching lines @@
 
 namespace {
 
 class InspectorOverlayChromeClient final: public EmptyChromeClient {
 public:
     InspectorOverlayChromeClient(ChromeClient& client, InspectorOverlayImpl* overlay)
         : m_client(client)
         , m_overlay(overlay)
     { }
 
-    virtual void setCursor(const Cursor& cursor) override
+    void setCursor(const Cursor& cursor) override
     {
         m_client.setCursor(cursor);
     }
 
-    virtual void setToolTip(const String& tooltip, TextDirection direction) override
+    void setToolTip(const String& tooltip, TextDirection direction) override
     {
         m_client.setToolTip(tooltip, direction);
     }
 
-    virtual void invalidateRect(const IntRect&) override
+    void invalidateRect(const IntRect&) override
     {
         m_overlay->invalidate();
     }
 
 private:
     ChromeClient& m_client;
     InspectorOverlayImpl* m_overlay;
 };
 
 class InspectorOverlayStub : public NoBaseWillBeGarbageCollectedFinalized<InspectorOverlayStub>, public InspectorOverlay {
@@ skipping 393 matching lines @@
 }
 
 void InspectorOverlayImpl::setLayoutEditor(PassOwnPtrWillBeRawPtr<LayoutEditor> layoutEditor)
 {
     m_layoutEditor = layoutEditor;
     m_overlayHost->setLayoutEditorListener(m_layoutEditor.get());
 }
 
 
 } // namespace blink