[heap] Give marking functions for incremental marking more precise names.

src/heap/incremental-marking.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_HEAP_INCREMENTAL_MARKING_H_
 #define V8_HEAP_INCREMENTAL_MARKING_H_
 
 #include "src/cancelable-task.h"
 #include "src/execution.h"
 #include "src/heap/heap.h"
@@ skipping 186 matching lines @@
   void NotifyOfHighPromotionRate();
 
   void NotifyIncompleteScanOfObject(int unscanned_bytes) {
     unscanned_bytes_of_large_object_ = unscanned_bytes;
   }
 
   void ClearIdleMarkingDelayCounter();
 
   bool IsIdleMarkingDelayCounterLimitReached();
 
-  static void MarkObject(Heap* heap, HeapObject* object);
+  static void MarkGrey(Heap* heap, HeapObject* object);
+
+  static void MarkBlack(HeapObject* object, int size);
 
   static void TransferMark(Heap* heap, Address old_start, Address new_start);
 
   // Returns true if the color transfer requires live bytes updating.
   INLINE(static bool TransferColor(HeapObject* from, HeapObject* to,
                                    int size)) {
     MarkBit from_mark_bit = ObjectMarking::MarkBitFrom(from);
     MarkBit to_mark_bit = ObjectMarking::MarkBitFrom(to);
 
     if (Marking::IsBlack(to_mark_bit)) {
@@ skipping 112 matching lines @@
   GCRequestType request_type_;
 
   IncrementalMarkingJob incremental_marking_job_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking);
 };
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_INCREMENTAL_MARKING_H_