[heap] delete Heap::LeftTrimFixedAray

src/heap/mark-compact.cc

Index: src/heap/mark-compact.cc
diff --git a/src/heap/mark-compact.cc b/src/heap/mark-compact.cc
index 7b3c2a8c6eb75140aa1783353d3ae8b945a35c17..123408f7920d049042662a9558278050838f1f14 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -603,43 +603,6 @@ bool MarkCompactCollector::IsSweepingCompleted() {
 }
 
 
-void Marking::TransferMark(Heap* heap, Address old_start, Address new_start) {
-  // This is only used when resizing an object.
-  DCHECK(MemoryChunk::FromAddress(old_start) ==
-         MemoryChunk::FromAddress(new_start));
-
-  if (!heap->incremental_marking()->IsMarking()) return;
-
-  // If the mark doesn't move, we don't check the color of the object.
-  // It doesn't matter whether the object is black, since it hasn't changed
-  // size, so the adjustment to the live data count will be zero anyway.
-  if (old_start == new_start) return;
-
-  MarkBit new_mark_bit = MarkBitFrom(new_start);
-  MarkBit old_mark_bit = MarkBitFrom(old_start);
-
-#ifdef DEBUG
-  ObjectColor old_color = Color(old_mark_bit);
-#endif
-
-  if (Marking::IsBlack(old_mark_bit)) {
-    Marking::BlackToWhite(old_mark_bit);
-    Marking::MarkBlack(new_mark_bit);
-    return;
-  } else if (Marking::IsGrey(old_mark_bit)) {
-    Marking::GreyToWhite(old_mark_bit);
-    heap->incremental_marking()->WhiteToGreyAndPush(
-        HeapObject::FromAddress(new_start), new_mark_bit);
-    heap->incremental_marking()->RestartIfNotMarking();
-  }
-
-#ifdef DEBUG
-  ObjectColor new_color = Color(new_mark_bit);
-  DCHECK(new_color == old_color);
-#endif
-}
-
-
 const char* AllocationSpaceName(AllocationSpace space) {
   switch (space) {
     case NEW_SPACE: