[heap] Create a thin wrapper around wrapper tracing in V8 to avoid misuse

src/heap/objects-visiting.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
+#include "src/heap/embedder-tracing.h"
 #include "src/heap/heap.h"
 #include "src/heap/spaces.h"
 #include "src/layout-descriptor.h"
 #include "src/objects-body-descriptors.h"
 
 // This file provides base classes and auxiliary methods for defining
 // static object visitors used during GC.
 // Visiting HeapObject body with a normal ObjectVisitor requires performing
 // two switches on object's instance type to determine object size and layout
 // and one or more virtual method calls on visitor itself.
@@ skipping 398 matching lines @@
       JSObjectVisitor::template VisitSpecialized<size>(map, object);
     }
 
     INLINE(static void Visit(Map* map, HeapObject* object)) {
       TracePossibleWrapper(object);
       JSObjectVisitor::Visit(map, object);
     }
 
    private:
     INLINE(static void TracePossibleWrapper(HeapObject* object)) {
-      if (object->GetHeap()->UsingEmbedderHeapTracer()) {
+      if (object->GetHeap()->local_embedder_heap_tracer()->InUse()) {
         DCHECK(object->IsJSObject());
         object->GetHeap()->TracePossibleWrapper(JSObject::cast(object));
       }
     }
   };
 
   typedef FlexibleBodyVisitor<StaticVisitor, StructBodyDescriptor, void>
       StructObjectVisitor;
 
   typedef void (*Callback)(Map* map, HeapObject* object);
@@ skipping 14 matching lines @@
 // the next element. Given the head of the list, this function removes dead
 // elements from the list and if requested records slots for next-element
 // pointers. The template parameter T is a WeakListVisitor that defines how to
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer);
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_VISITING_H_