Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/dom

Source/core/dom/DocumentStyleSheetCollector.h

Index: Source/core/dom/DocumentStyleSheetCollector.h
diff --git a/Source/core/dom/DocumentStyleSheetCollector.h b/Source/core/dom/DocumentStyleSheetCollector.h
index 23b05e0c900d54a1e5daff71ac39dc32872f0d40..a5494e8ccbf4d3c3e2ffdff835ccc905ad263924 100644
--- a/Source/core/dom/DocumentStyleSheetCollector.h
+++ b/Source/core/dom/DocumentStyleSheetCollector.h
@@ -63,14 +63,14 @@ private:
     WillBeHeapHashSet<RawPtrWillBeMember<Document> >& m_visitedDocuments;
 };
 
-class ActiveDocumentStyleSheetCollector FINAL : public DocumentStyleSheetCollector {
+class ActiveDocumentStyleSheetCollector final : public DocumentStyleSheetCollector {
 public:
     ActiveDocumentStyleSheetCollector(StyleSheetCollection&);
 private:
     WillBeHeapHashSet<RawPtrWillBeMember<Document> > m_visitedDocuments;
 };
 
-class ImportedDocumentStyleSheetCollector FINAL : public DocumentStyleSheetCollector {
+class ImportedDocumentStyleSheetCollector final : public DocumentStyleSheetCollector {
 public:
     ImportedDocumentStyleSheetCollector(DocumentStyleSheetCollector&, WillBeHeapVector<RefPtrWillBeMember<StyleSheet> >&);
 };