namespace blink {
-class GCObservation FINAL : public GarbageCollectedFinalized<GCObservation>, public ScriptWrappable {
+class GCObservation final : public GarbageCollectedFinalized<GCObservation>, public ScriptWrappable {
DEFINE_WRAPPERTYPEINFO();
public:
static GCObservation* create(v8::Handle<v8::Value> observedValue)