Replace FINAL and OVERRIDE with their C++11 counterparts in Source/modules/serviceworkers

Source/modules/serviceworkers/FetchHeaderList.h

Index: Source/modules/serviceworkers/FetchHeaderList.h
diff --git a/Source/modules/serviceworkers/FetchHeaderList.h b/Source/modules/serviceworkers/FetchHeaderList.h
index 0e80888d06eaaa0d11b77f03cdb2f1225fa37ce2..f81b35c3ee4d5c9c3486e0a6db46310a6a3b7ffa 100644
--- a/Source/modules/serviceworkers/FetchHeaderList.h
+++ b/Source/modules/serviceworkers/FetchHeaderList.h
@@ -17,7 +17,7 @@ namespace blink {
 class Header;
 
 // http://fetch.spec.whatwg.org/#terminology-headers
-class FetchHeaderList FINAL : public GarbageCollectedFinalized<FetchHeaderList> {
+class FetchHeaderList final : public GarbageCollectedFinalized<FetchHeaderList> {
 public:
     typedef std::pair<String, String> Header;
     static FetchHeaderList* create();