Remove FINAL macro to make chromium presubmit happy

sky/engine/platform/weborigin/KURL.cpp

Index: sky/engine/platform/weborigin/KURL.cpp
diff --git a/sky/engine/platform/weborigin/KURL.cpp b/sky/engine/platform/weborigin/KURL.cpp
index f7e15855e6a59e35926930f5fe94b69c29b09d4c..eae21a18a96c6f4c69752a7985eee8e21aac0795 100644
--- a/sky/engine/platform/weborigin/KURL.cpp
+++ b/sky/engine/platform/weborigin/KURL.cpp
@@ -93,7 +93,7 @@ static bool isUnicodeEncoding(const WTF::TextEncoding* encoding)
 
 namespace {
 
-class KURLCharsetConverter FINAL : public url::CharsetConverter {
+class KURLCharsetConverter final : public url::CharsetConverter {
 public:
     // The encoding parameter may be 0, but in this case the object must not be called.
     explicit KURLCharsetConverter(const WTF::TextEncoding* encoding)