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

Source/core/svg/animation/SVGSMILElement.h

 /*
  * Copyright (C) 2008 Apple 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 30 matching lines @@
 class SVGSMILElement;
 
 template<typename T> class EventSender;
 typedef EventSender<SVGSMILElement> SMILEventSender;
 
 // This class implements SMIL interval timing model as needed for SVG animation.
 class CORE_EXPORT SVGSMILElement : public SVGElement, public SVGTests {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SVGSMILElement);
 public:
     SVGSMILElement(const QualifiedName&, Document&);
-    virtual ~SVGSMILElement();
+    ~SVGSMILElement() override;
 
-    virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
-    virtual void svgAttributeChanged(const QualifiedName&) override;
-    virtual InsertionNotificationRequest insertedInto(ContainerNode*) override;
-    virtual void removedFrom(ContainerNode*) override;
+    void parseAttribute(const QualifiedName&, const AtomicString&) override;
+    void svgAttributeChanged(const QualifiedName&) override;
+    InsertionNotificationRequest insertedInto(ContainerNode*) override;
+    void removedFrom(ContainerNode*) override;
 
     virtual bool hasValidAttributeType() = 0;
     virtual bool hasValidAttributeName();
     virtual void animationAttributeChanged() = 0;
 
     SMILTimeContainer* timeContainer() const { return m_timeContainer.get(); }
 
     SVGElement* targetElement() const { return m_targetElement; }
     const QualifiedName& attributeName() const { return m_attributeName; }
 
@@ skipping 62 matching lines @@
     void setInactive() { m_activeState = Inactive; }
 
     // Sub-classes may need to take action when the target is changed.
     virtual void setTargetElement(SVGElement*);
     virtual void setAttributeName(const QualifiedName&);
 
     void schedule();
     void unscheduleIfScheduled();
 
 private:
-    virtual void buildPendingResource() override;
+    void buildPendingResource() override;
     void clearResourceAndEventBaseReferences();
     void clearConditions();
 
     virtual void startedActiveInterval() = 0;
     void endedActiveInterval();
     virtual void updateAnimation(float percent, unsigned repeat, SVGSMILElement* resultElement) = 0;
 
-    virtual bool layoutObjectIsNeeded(const ComputedStyle&) override { return false; }
+    bool layoutObjectIsNeeded(const ComputedStyle&) override { return false; }
 
     enum BeginOrEnd {
         Begin,
         End
     };
 
     SMILTime findInstanceTime(BeginOrEnd, SMILTime minimumTime, bool equalsMinimumOK) const;
 
     enum ResolveInterval {
         FirstInterval,
@@ skipping 126 matching lines @@
 {
     return element.hasTagName(SVGNames::setTag) || element.hasTagName(SVGNames::animateTag) || element.hasTagName(SVGNames::animateMotionTag)
         || element.hasTagName(SVGNames::animateTransformTag) || element.hasTagName((SVGNames::discardTag));
 }
 
 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGSMILElement);
 
 }
 
 #endif // SVGSMILElement_h