Replace OVERRIDE and FINAL with their C++11 counterparts in WTF

Source/wtf/text/TextCodecUTF8.h

Index: Source/wtf/text/TextCodecUTF8.h
diff --git a/Source/wtf/text/TextCodecUTF8.h b/Source/wtf/text/TextCodecUTF8.h
index 10a28cf7a6d7b0a86c63bfbee9bbd78e213dc8e7..5a2359acb8d8c0cc18c7b8dc53ceb98ae72f0c66 100644
--- a/Source/wtf/text/TextCodecUTF8.h
+++ b/Source/wtf/text/TextCodecUTF8.h
@@ -41,9 +41,9 @@ protected:
 private:
     static PassOwnPtr<TextCodec> create(const TextEncoding&, const void*);
 
-    virtual String decode(const char*, size_t length, FlushBehavior, bool stopOnError, bool& sawError) OVERRIDE;
-    virtual CString encode(const UChar*, size_t length, UnencodableHandling) OVERRIDE;
-    virtual CString encode(const LChar*, size_t length, UnencodableHandling) OVERRIDE;
+    virtual String decode(const char*, size_t length, FlushBehavior, bool stopOnError, bool& sawError) override;
+    virtual CString encode(const UChar*, size_t length, UnencodableHandling) override;
+    virtual CString encode(const LChar*, size_t length, UnencodableHandling) override;
 
     template<typename CharType>
     CString encodeCommon(const CharType* characters, size_t length);