Fix virtual/override/final usage in Source/core/dom/.

Source/core/dom/PseudoElement.h

 /*
  * Copyright (C) 2012 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 19 matching lines @@
 #include "core/CoreExport.h"
 #include "core/dom/Element.h"
 #include "core/style/ComputedStyle.h"
 
 namespace blink {
 
 class CORE_EXPORT PseudoElement : public Element {
 public:
     static PassRefPtrWillBeRawPtr<PseudoElement> create(Element* parent, PseudoId);
 
-    virtual PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
-    virtual void attach(const AttachContext& = AttachContext()) override;
-    virtual bool layoutObjectIsNeeded(const ComputedStyle&) override;
+    PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
+    void attach(const AttachContext& = AttachContext()) override;
+    bool layoutObjectIsNeeded(const ComputedStyle&) override;
 
-    virtual bool canStartSelection() const override { return false; }
-    virtual bool canContainRangeEndPoint() const override { return false; }
-    virtual PseudoId pseudoId() const override { return m_pseudoId; }
+    bool canStartSelection() const override { return false; }
+    bool canContainRangeEndPoint() const override { return false; }
+    PseudoId pseudoId() const override { return m_pseudoId; }
 
     static String pseudoElementNameForEvents(PseudoId);
 
     Node* findAssociatedNode() const;
 
     virtual void dispose();
 
 protected:
     PseudoElement(Element*, PseudoId);
 
 private:
-    virtual void didRecalcStyle(StyleRecalcChange) override;
+    void didRecalcStyle(StyleRecalcChange) override;
 
     PseudoId m_pseudoId;
 };
 
 const QualifiedName& pseudoElementTagName();
 
 inline bool pseudoElementLayoutObjectIsNeeded(const ComputedStyle* style)
 {
     if (!style)
         return false;
     if (style->display() == NONE)
         return false;
     if (style->styleType() == FIRST_LETTER || style->styleType() == BACKDROP)
         return true;
     return style->contentData();
 }
 
 DEFINE_ELEMENT_TYPE_CASTS(PseudoElement, isPseudoElement());
 
 } // namespace
 
 #endif