[heap] Untangle Marking and friends from heap dependencies.

src/heap/heap-inl.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_HEAP_INL_H_
 #define V8_HEAP_HEAP_INL_H_
 
 #include <cmath>
 
 #include "src/base/platform/platform.h"
@@ skipping 236 matching lines @@
     UNREACHABLE();
   }
   if (allocation.To(&object)) {
     OnAllocationEvent(object, size_in_bytes);
   } else {
     old_gen_exhausted_ = true;
   }
 
   if (!old_gen_exhausted_ && incremental_marking()->black_allocation() &&
       space != OLD_SPACE) {
-    Marking::MarkBlack(Marking::MarkBitFrom(object));
+    Marking::MarkBlack(ObjectMarking::MarkBitFrom(object));
     MemoryChunk::IncrementLiveBytesFromGC(object, size_in_bytes);
   }
   return allocation;
 }
 
 
 void Heap::OnAllocationEvent(HeapObject* object, int size_in_bytes) {
   HeapProfiler* profiler = isolate_->heap_profiler();
   if (profiler->is_tracking_allocations()) {
     profiler->AllocationEvent(object->address(), size_in_bytes);
@@ skipping 124 matching lines @@
   if (!incremental_marking()->IsStopped()) return false;
   return OldGenerationSpaceAvailable() < 0;
 }
 
 template <PromotionMode promotion_mode>
 bool Heap::ShouldBePromoted(Address old_address, int object_size) {
   Page* page = Page::FromAddress(old_address);
   Address age_mark = new_space_.age_mark();
 
   if (promotion_mode == PROMOTE_MARKED) {
-    MarkBit mark_bit = Marking::MarkBitFrom(old_address);
+    MarkBit mark_bit = ObjectMarking::MarkBitFrom(old_address);
     if (!Marking::IsWhite(mark_bit)) {
       return true;
     }
   }
 
   return page->IsFlagSet(MemoryChunk::NEW_SPACE_BELOW_AGE_MARK) &&
          (!page->ContainsLimit(age_mark) || old_address < age_mark);
 }
 
 PromotionMode Heap::CurrentPromotionMode() {
@@ skipping 354 matching lines @@
 
 void VerifySmisVisitor::VisitPointers(Object** start, Object** end) {
   for (Object** current = start; current < end; current++) {
     CHECK((*current)->IsSmi());
   }
 }
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_HEAP_INL_H_