[heap] Black allocation.

src/heap/incremental-marking.h

Index: src/heap/incremental-marking.h
diff --git a/src/heap/incremental-marking.h b/src/heap/incremental-marking.h
index 3b3ba6e0609e37be9e2b20b96ecf9548588ff8bb..8b4aa86efc04250ef98174506a558d2e524cb425 100644
--- a/src/heap/incremental-marking.h
+++ b/src/heap/incremental-marking.h
@@ -208,7 +208,9 @@ class IncrementalMarking {
 
   bool IsIdleMarkingDelayCounterLimitReached();
 
-  INLINE(static void MarkObject(Heap* heap, HeapObject* object));
+  static void MarkObject(Heap* heap, HeapObject* object);
+
+  void IterateBlackObject(HeapObject* object);
 
   Heap* heap() const { return heap_; }
 
@@ -216,6 +218,8 @@ class IncrementalMarking {
     return &incremental_marking_job_;
   }
 
+  bool black_allocation() { return black_allocation_; }
+
  private:
   class Observer : public AllocationObserver {
    public:
@@ -240,6 +244,9 @@ class IncrementalMarking {
 
   void StartMarking();
 
+  void StartBlackAllocation();
+  void FinishBlackAllocation();
+
   void MarkRoots();
   void MarkObjectGroups();
   void ProcessWeakCells();
@@ -292,6 +299,8 @@ class IncrementalMarking {
 
   bool was_activated_;
 
+  bool black_allocation_;
+
   bool finalize_marking_completed_;
 
   int incremental_marking_finalization_rounds_;