Update HTML canvas classes to use OVERRIDE / FINAL when needed

Source/core/html/canvas/DOMPath.h

Index: Source/core/html/canvas/DOMPath.h
diff --git a/Source/core/html/canvas/DOMPath.h b/Source/core/html/canvas/DOMPath.h
index 9ce2cba95122c99c75af5b62b3b02834707c1c40..abb01a6fd71745ea202006276c032113dc686b11 100644
--- a/Source/core/html/canvas/DOMPath.h
+++ b/Source/core/html/canvas/DOMPath.h
@@ -36,7 +36,7 @@
 
 namespace WebCore {
 
-class DOMPath : public RefCounted<DOMPath>, public CanvasPathMethods, public ScriptWrappable {
+class DOMPath FINAL : public RefCounted<DOMPath>, public CanvasPathMethods, public ScriptWrappable {
     WTF_MAKE_NONCOPYABLE(DOMPath); WTF_MAKE_FAST_ALLOCATED;
 public:
     static PassRefPtr<DOMPath> create() { return adoptRef(new DOMPath); }