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

Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 117 matching lines @@
     friend class LayoutBlock;
     friend class LayoutBlockFlow;
     friend class DeprecatedPaintLayerReflectionInfo; // For setParent
     friend class DeprecatedPaintLayerScrollableArea; // For setParent.
     friend class LayoutObjectChildList;
     WTF_MAKE_NONCOPYABLE(LayoutObject);
 public:
     // Anonymous objects should pass the document as their node, and they will then automatically be
     // marked as anonymous in the constructor.
     explicit LayoutObject(Node*);
-    virtual ~LayoutObject();
+    ~LayoutObject() override;
 
     // Returns the name of the layout object.
     virtual const char* name() const = 0;
 
     // Returns the decorated name used by run-layout-tests. The name contains the name of the object
     // along with extra information about the layout object state (e.g. positioning).
     String decoratedName() const;
 
     // Returns the decorated name along with the debug information from the associated Node object.
     String debugName() const;
@@ skipping 813 matching lines @@
 
     virtual bool isCombineText() const { return false; }
 
     virtual int caretMinOffset() const;
     virtual int caretMaxOffset() const;
 
     virtual int previousOffset(int current) const;
     virtual int previousOffsetForBackwardDeletion(int current) const;
     virtual int nextOffset(int current) const;
 
-    virtual void imageChanged(ImageResource*, const IntRect* = nullptr) override final;
+    void imageChanged(ImageResource*, const IntRect* = nullptr) final;
     virtual void imageChanged(WrappedImagePtr, const IntRect* = nullptr) { }
-    virtual bool willRenderImage(ImageResource*) override final;
-    virtual bool getImageAnimationPolicy(ImageResource*, ImageAnimationPolicy&) override final;
+    bool willRenderImage(ImageResource*) final;
+    bool getImageAnimationPolicy(ImageResource*, ImageAnimationPolicy&) final;
 
     void selectionStartEnd(int& spos, int& epos) const;
 
     void remove()
     {
         if (parent())
             parent()->removeChild(this);
     }
 
     bool visibleToHitTestRequest(const HitTestRequest& request) const { return style()->visibility() == VISIBLE && (request.ignorePointerEventsNone() || style()->pointerEvents() != PE_NONE) && !isInert(); }
@@ skipping 671 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h