Revert of Replace slots buffer with remembered set.

src/heap/incremental-marking.cc

 // 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.
 
 #include "src/heap/incremental-marking.h"
 
 #include "src/code-stubs.h"
 #include "src/compilation-cache.h"
 #include "src/conversions.h"
 #include "src/heap/gc-idle-time-handler.h"
@@ skipping 113 matching lines @@
 void IncrementalMarking::RecordWriteOfCodeEntrySlow(JSFunction* host,
                                                     Object** slot,
                                                     Code* value) {
   if (BaseRecordWrite(host, value)) {
     DCHECK(slot != NULL);
     heap_->mark_compact_collector()->RecordCodeEntrySlot(
         host, reinterpret_cast<Address>(slot), value);
   }
 }
 
-void IncrementalMarking::RecordWriteIntoCodeSlow(Code* host, RelocInfo* rinfo,
+
+void IncrementalMarking::RecordWriteIntoCodeSlow(HeapObject* obj,
+                                                 RelocInfo* rinfo,
                                                  Object* value) {
-  if (BaseRecordWrite(host, value)) {
-    // Object is not going to be rescanned.  We need to record the slot.
-    heap_->mark_compact_collector()->RecordRelocSlot(host, rinfo, value);
+  if (BaseRecordWrite(obj, value)) {
+      // Object is not going to be rescanned.  We need to record the slot.
+      heap_->mark_compact_collector()->RecordRelocSlot(rinfo, value);
   }
 }
 
 
 void IncrementalMarking::RecordWrites(HeapObject* obj) {
   if (IsMarking()) {
     MarkBit obj_bit = Marking::MarkBitFrom(obj);
     if (Marking::IsBlack(obj_bit)) {
       MemoryChunk* chunk = MemoryChunk::FromAddress(obj->address());
       if (chunk->IsFlagSet(MemoryChunk::HAS_PROGRESS_BAR)) {
@@ skipping 1095 matching lines @@
 void IncrementalMarking::IncrementIdleMarkingDelayCounter() {
   idle_marking_delay_counter_++;
 }
 
 
 void IncrementalMarking::ClearIdleMarkingDelayCounter() {
   idle_marking_delay_counter_ = 0;
 }
 }  // namespace internal
 }  // namespace v8