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

Source/core/html/HTMLImageElement.h

Index: Source/core/html/HTMLImageElement.h
diff --git a/Source/core/html/HTMLImageElement.h b/Source/core/html/HTMLImageElement.h
index eb9b70dd7fd211abbec8eaab6393e204e9c50cf9..baabe22989586e01ed130a872cb224165374855a 100644
--- a/Source/core/html/HTMLImageElement.h
+++ b/Source/core/html/HTMLImageElement.h
@@ -50,7 +50,7 @@ public:
     static PassRefPtrWillBeRawPtr<HTMLImageElement> createForJSConstructor(Document&, int width);
     static PassRefPtrWillBeRawPtr<HTMLImageElement> createForJSConstructor(Document&, int width, int height);
 
-    virtual ~HTMLImageElement();
+    ~HTMLImageElement() override;
     DECLARE_VIRTUAL_TRACE();
 
     int width(bool ignorePendingStylesheets = false);
@@ -62,7 +62,7 @@ public:
 
     bool isServerMap() const;
 
-    virtual String altText() const override final;
+    String altText() const final;
 
     ImageResource* cachedImage() const { return imageLoader().image(); }
     void setImageResource(ImageResource* i) { imageLoader().setImage(i); };
@@ -83,25 +83,25 @@ public:
 
     bool hasPendingActivity() const { return imageLoader().hasPendingActivity(); }
 
-    virtual bool canContainRangeEndPoint() const override { return false; }
+    bool canContainRangeEndPoint() const override { return false; }
 
     void addClient(ImageLoaderClient* client) { imageLoader().addClient(client); }
     void removeClient(ImageLoaderClient* client) { imageLoader().removeClient(client); }
 
-    virtual const AtomicString imageSourceURL() const override;
+    const AtomicString imageSourceURL() const override;
 
-    virtual HTMLFormElement* formOwner() const override;
+    HTMLFormElement* formOwner() const override;
     void formRemovedFromTree(const Node& formRoot);
     virtual void ensureFallbackContent();
     virtual void ensurePrimaryContent();
 
     // CanvasImageSource implementation
-    virtual PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceImageStatus*) const override;
-    virtual bool wouldTaintOrigin(SecurityOrigin*) const override;
-    virtual FloatSize elementSize() const override;
-    virtual FloatSize defaultDestinationSize() const override;
-    virtual const KURL& sourceURL() const override;
-    virtual bool isOpaque() const override;
+    PassRefPtr<Image> getSourceImageForCanvas(SourceImageMode, SourceImageStatus*) const override;
+    bool wouldTaintOrigin(SecurityOrigin*) const override;
+    FloatSize elementSize() const override;
+    FloatSize defaultDestinationSize() const override;
+    const KURL& sourceURL() const override;
+    bool isOpaque() const override;
 
     // public so that HTMLPictureElement can call this as well.
     void selectSourceURL(ImageLoader::UpdateFromElementBehavior);
@@ -117,35 +117,35 @@ public:
 protected:
     explicit HTMLImageElement(Document&, HTMLFormElement* = 0, bool createdByParser = false);
 
-    virtual void didMoveToNewDocument(Document& oldDocument) override;
+    void didMoveToNewDocument(Document& oldDocument) override;
     virtual bool useFallbackContent() const { return m_useFallbackContent; }
 
-    virtual void didAddUserAgentShadowRoot(ShadowRoot&) override;
-    virtual PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
+    void didAddUserAgentShadowRoot(ShadowRoot&) override;
+    PassRefPtr<ComputedStyle> customStyleForLayoutObject() override;
 private:
-    virtual bool areAuthorShadowsAllowed() const override { return false; }
+    bool areAuthorShadowsAllowed() const override { return false; }
 
-    virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
-    virtual bool isPresentationAttribute(const QualifiedName&) const override;
-    virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override;
+    void parseAttribute(const QualifiedName&, const AtomicString&) override;
+    bool isPresentationAttribute(const QualifiedName&) const override;
+    void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override;
 
-    virtual void attach(const AttachContext& = AttachContext()) override;
-    virtual LayoutObject* createLayoutObject(const ComputedStyle&) override;
+    void attach(const AttachContext& = AttachContext()) override;
+    LayoutObject* createLayoutObject(const ComputedStyle&) override;
 
-    virtual bool canStartSelection() const override { return false; }
+    bool canStartSelection() const override { return false; }
 
-    virtual bool isURLAttribute(const Attribute&) const override;
-    virtual bool hasLegalLinkAttribute(const QualifiedName&) const override;
-    virtual const QualifiedName& subResourceAttributeName() const override;
+    bool isURLAttribute(const Attribute&) const override;
+    bool hasLegalLinkAttribute(const QualifiedName&) const override;
+    const QualifiedName& subResourceAttributeName() const override;
 
-    virtual bool draggable() const override;
+    bool draggable() const override;
 
-    virtual InsertionNotificationRequest insertedInto(ContainerNode*) override;
-    virtual void removedFrom(ContainerNode*) override;
-    virtual bool shouldRegisterAsNamedItem() const override { return true; }
-    virtual bool shouldRegisterAsExtraNamedItem() const override { return true; }
-    virtual bool isInteractiveContent() const override;
-    virtual Image* imageContents() override;
+    InsertionNotificationRequest insertedInto(ContainerNode*) override;
+    void removedFrom(ContainerNode*) override;
+    bool shouldRegisterAsNamedItem() const override { return true; }
+    bool shouldRegisterAsExtraNamedItem() const override { return true; }
+    bool isInteractiveContent() const override;
+    Image* imageContents() override;
 
     void resetFormOwner();
     ImageCandidate findBestFitImageFromPictureParent();