Revert of [heap] Remove black pages and use black areas instead.

src/heap/spaces-inl.h

Index: src/heap/spaces-inl.h
diff --git a/src/heap/spaces-inl.h b/src/heap/spaces-inl.h
index 0fd69dacfebd7b93b269bd9b093b53e39bca4866..1ee0f0bf910d095386ec79b4519645a8a4f274aa 100644
--- a/src/heap/spaces-inl.h
+++ b/src/heap/spaces-inl.h
@@ -33,6 +33,7 @@
              Page::FromAllocationAreaAddress(limit)->next_page()) {
   SemiSpace::AssertValidRange(start, limit);
 }
+
 
 // -----------------------------------------------------------------------------
 // SemiSpaceIterator
@@ -241,6 +242,7 @@
 }
 
 void MemoryChunk::IncrementLiveBytes(int by) {
+  if (IsFlagSet(BLACK_PAGE)) return;
   if (FLAG_trace_live_bytes) {
     PrintIsolate(
         heap()->isolate(), "live-bytes: update page=%p delta=%d %d->%d\n",
@@ -441,12 +443,6 @@
     object = free_list_.Allocate(size_in_bytes);
     if (object == NULL) {
       object = SlowAllocateRaw(size_in_bytes);
-    }
-    if (object != NULL) {
-      if (heap()->incremental_marking()->black_allocation()) {
-        Marking::MarkBlack(ObjectMarking::MarkBitFrom(object));
-        MemoryChunk::IncrementLiveBytesFromGC(object, size_in_bytes);
-      }
     }
   }