Revert of [heap] Fine-grained JSArrayBuffer tracking

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index a7982d14b2ccf9341adbd5bccc57829788da77b0..89ca782c267b317fc64bcb27f4c9442bb6424a7d 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -1675,8 +1675,7 @@
       // If we end up needing more special cases, we should factor this out.
       if (V8_UNLIKELY(target_object->IsJSArrayBuffer())) {
         heap_->array_buffer_tracker()->Promote(
-            JSArrayBuffer::cast(target_object),
-            reinterpret_cast<JSArrayBuffer*>(object));
+            JSArrayBuffer::cast(target_object));
       }
       promoted_size_ += size;
       return true;
@@ -1685,9 +1684,7 @@
     AllocationSpace space = AllocateTargetObject(object, &target);
     MigrateObject(HeapObject::cast(target), object, size, space);
     if (V8_UNLIKELY(target->IsJSArrayBuffer())) {
-      heap_->array_buffer_tracker()->SemiSpaceCopy(
-          JSArrayBuffer::cast(target),
-          reinterpret_cast<JSArrayBuffer*>(object));
+      heap_->array_buffer_tracker()->MarkLive(JSArrayBuffer::cast(target));
     }
     semispace_copied_size_ += size;
     return true;
@@ -1814,7 +1811,7 @@
   inline bool Visit(HeapObject* object) {
     if (V8_UNLIKELY(object->IsJSArrayBuffer())) {
       object->GetHeap()->array_buffer_tracker()->Promote(
-          JSArrayBuffer::cast(object), JSArrayBuffer::cast(object));
+          JSArrayBuffer::cast(object));
     }
     RecordMigratedSlotVisitor visitor;
     object->IterateBodyFast(&visitor);
@@ -1841,15 +1838,7 @@
     HeapObject* target_object = nullptr;
     if (TryEvacuateObject(target_space, object, &target_object)) {
       DCHECK(object->map_word().IsForwardingAddress());
-      if (V8_UNLIKELY(target_object->IsJSArrayBuffer())) {
-        heap_->array_buffer_tracker()->Compact(
-            JSArrayBuffer::cast(target_object),
-            reinterpret_cast<JSArrayBuffer*>(object));
-      }
       return true;
-    }
-    if (V8_UNLIKELY(object->IsJSArrayBuffer())) {
-      heap_->array_buffer_tracker()->MarkLive(JSArrayBuffer::cast(object));
     }
     return false;
   }