[wrapper-tracing] Simplify tracing and reduce technical debt

third_party/WebKit/Source/platform/heap/TraceTraits.h

Index: third_party/WebKit/Source/platform/heap/TraceTraits.h
diff --git a/third_party/WebKit/Source/platform/heap/TraceTraits.h b/third_party/WebKit/Source/platform/heap/TraceTraits.h
index 15e97551e335e60f06311726aea9db1e4ab2233e..e2e31460594f8f65e41b28c5edfea579b1633e1c 100644
--- a/third_party/WebKit/Source/platform/heap/TraceTraits.h
+++ b/third_party/WebKit/Source/platform/heap/TraceTraits.h
@@ -188,7 +188,6 @@ class TraceTrait {
   static void trace(Visitor*, void* self);
   static void trace(InlinedGlobalMarkingVisitor, void* self);
 
-  static void markAndTraceWrapper(const WrapperVisitor*, const void*);
   static void markWrapperNoTracing(const WrapperVisitor*, const void*);
   static void traceMarkedWrapper(const WrapperVisitor*, const void*);
   static HeapObjectHeader* heapObjectHeader(const void*);
@@ -234,16 +233,6 @@ void TraceTrait<T>::trace(InlinedGlobalMarkingVisitor visitor, void* self) {
 }
 
 template <typename T>
-void TraceTrait<T>::markAndTraceWrapper(const WrapperVisitor* visitor,
-                                        const void* t) {
-  const T* traceable = ToWrapperTracingType(t);
-  if (visitor->markWrapperHeader(heapObjectHeader(traceable))) {
-    visitor->markWrappersInAllWorlds(traceable);
-    visitor->dispatchTraceWrappers(traceable);
-  }
-}
-
-template <typename T>
 void TraceTrait<T>::markWrapperNoTracing(const WrapperVisitor* visitor,
                                          const void* t) {
   const T* traceable = ToWrapperTracingType(t);