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

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004-2011, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 171 matching lines @@
     }
 #else // !ENABLE(OILPAN)
     // All Nodes are placed in their own heap partition for security.
     // See http://crbug.com/246860 for detail.
     void* operator new(size_t);
     void operator delete(void*);
 #endif
 
     static void dumpStatistics();
 
-    virtual ~Node();
+    ~Node() override;
 
     // DOM methods & attributes for Node
 
     bool hasTagName(const HTMLQualifiedName&) const;
     bool hasTagName(const SVGQualifiedName&) const;
     virtual String nodeName() const = 0;
     virtual String nodeValue() const;
     virtual void setNodeValue(const String&);
     virtual NodeType nodeType() const = 0;
     ContainerNode* parentNode() const;
@@ skipping 413 matching lines @@
     virtual bool willRespondToMouseClickEvents();
     virtual bool willRespondToTouchEvents();
 
     enum ShadowTreesTreatment {
         TreatShadowTreesAsDisconnected,
         TreatShadowTreesAsComposed
     };
 
     unsigned short compareDocumentPosition(const Node*, ShadowTreesTreatment = TreatShadowTreesAsDisconnected) const;
 
-    virtual Node* toNode() override final;
+    Node* toNode() final;
 
-    virtual const AtomicString& interfaceName() const override;
-    virtual ExecutionContext* executionContext() const override final;
+    const AtomicString& interfaceName() const override;
+    ExecutionContext* executionContext() const final;
 
-    virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
-    virtual bool removeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
-    virtual void removeAllEventListeners() override;
+    bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
+    bool removeEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) override;
+    void removeAllEventListeners() override;
     void removeAllEventListenersRecursively();
 
     // Handlers to do/undo actions on the target node before an event is dispatched to it and after the event
     // has been dispatched.  The data pointer is handed back by the preDispatch and passed to postDispatch.
     virtual void* preDispatchEventHandler(Event*) { return nullptr; }
     virtual void postDispatchEventHandler(Event*, void* /*dataFromPreDispatch*/) { }
 
     using EventTarget::dispatchEvent;
-    virtual bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;
+    bool dispatchEvent(PassRefPtrWillBeRawPtr<Event>) override;
 
     void dispatchScopedEvent(PassRefPtrWillBeRawPtr<Event>);
     void dispatchScopedEventDispatchMediator(PassRefPtrWillBeRawPtr<EventDispatchMediator>);
 
     virtual void handleLocalEvents(Event&);
 
     void dispatchSubtreeModifiedEvent();
     bool dispatchDOMActivateEvent(int detail, PassRefPtrWillBeRawPtr<Event> underlyingEvent);
 
     bool dispatchKeyEvent(const PlatformKeyboardEvent&);
     bool dispatchWheelEvent(const PlatformWheelEvent&);
     bool dispatchMouseEvent(const PlatformMouseEvent&, const AtomicString& eventType, int clickCount = 0, Node* relatedTarget = nullptr);
     bool dispatchGestureEvent(const PlatformGestureEvent&);
     bool dispatchTouchEvent(PassRefPtrWillBeRawPtr<TouchEvent>);
     bool dispatchPointerEvent(PassRefPtrWillBeRawPtr<PointerEvent>);
 
     void dispatchSimulatedClick(Event* underlyingEvent, SimulatedClickMouseEventOptions = SendNoEvents);
 
     void dispatchInputEvent();
 
     // Perform the default action for an event.
     virtual void defaultEventHandler(Event*);
     virtual void willCallDefaultEventHandler(const Event&);
 
-    virtual EventTargetData* eventTargetData() override;
-    virtual EventTargetData& ensureEventTargetData() override;
+    EventTargetData* eventTargetData() override;
+    EventTargetData& ensureEventTargetData() override;
 
     void getRegisteredMutationObserversOfType(WillBeHeapHashMap<RawPtrWillBeMember<MutationObserver>, MutationRecordDeliveryOptions>&, MutationObserver::MutationType, const QualifiedName* attributeName);
     void registerMutationObserver(MutationObserver&, MutationObserverOptions, const HashSet<AtomicString>& attributeFilter);
     void unregisterMutationObserver(MutationObserverRegistration*);
     void registerTransientMutationObserver(MutationObserverRegistration*);
     void unregisterTransientMutationObserver(MutationObserverRegistration*);
     void notifyMutationObserversNodeWillDetach();
 
     unsigned connectedSubframeCount() const;
     void incrementConnectedSubframeCount(unsigned amount = 1);
     void decrementConnectedSubframeCount(unsigned amount = 1);
     void updateAncestorConnectedSubframeCountForInsertion() const;
 
     PassRefPtrWillBeRawPtr<StaticNodeList> getDestinationInsertionPoints();
 
     void setAlreadySpellChecked(bool flag) { setFlag(flag, AlreadySpellCheckedFlag); }
     bool isAlreadySpellChecked() { return getFlag(AlreadySpellCheckedFlag); }
 
     bool isFinishedParsingChildren() const { return getFlag(IsFinishedParsingChildrenFlag); }
 
     DECLARE_VIRTUAL_TRACE();
 
     unsigned lengthOfContents() const;
 
-    virtual v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationContext) override;
-    virtual v8::Local<v8::Object> associateWithWrapper(v8::Isolate*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) override;
+    v8::Local<v8::Object> wrap(v8::Isolate*, v8::Local<v8::Object> creationContext) override;
+    v8::Local<v8::Object> associateWithWrapper(v8::Isolate*, const WrapperTypeInfo*, v8::Local<v8::Object> wrapper) override;
 
 private:
     enum NodeFlags {
         HasRareDataFlag = 1,
 
         // Node type flags. These never change once created.
         IsTextFlag = 1 << 1,
         IsContainerFlag = 1 << 2,
         IsElementFlag = 1 << 3,
         IsHTMLFlag = 1 << 4,
@@ skipping 212 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h