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

src/heap/scavenger.cc

Index: src/heap/scavenger.cc
diff --git a/src/heap/scavenger.cc b/src/heap/scavenger.cc
index dd95e9946754764a9e5195ab6e9cda94ba009e5f..b53e9b9e475afc5d83915314cb05b65986b8ada7 100644
--- a/src/heap/scavenger.cc
+++ b/src/heap/scavenger.cc
@@ -138,9 +138,7 @@ class ScavengingVisitor : public StaticVisitorBase {
     }
 
     if (marks_handling == TRANSFER_MARKS) {
-      if (IncrementalMarking::TransferColor(source, target)) {
-        MemoryChunk::IncrementLiveBytesFromGC(target, size);
-      }
+      IncrementalMarking::TransferColor(source, target, size);
     }
   }