1 files changed, 2 insertions, 7 deletions
diff --git a/deps/v8/src/mark-compact.h b/deps/v8/src/mark-compact.h
index 66ffd19535..6420a21fe3 100644
--- a/deps/v8/src/mark-compact.h
+++ b/deps/v8/src/mark-compact.h
@@ -544,6 +544,8 @@ class MarkCompactCollector {
 
   void ClearMarkbits();
 
+  bool is_compacting() const { return compacting_; }
+
  private:
   MarkCompactCollector();
   ~MarkCompactCollector();
@@ -640,13 +642,6 @@ class MarkCompactCollector {
 
   void ProcessNewlyMarkedObject(HeapObject* obj);
 
-  // Creates back pointers for all map transitions, stores them in
-  // the prototype field.  The original prototype pointers are restored
-  // in ClearNonLiveTransitions().  All JSObject maps
-  // connected by map transitions have the same prototype object, which
-  // is why we can use this field temporarily for back pointers.
-  void CreateBackPointers();
-
   // Mark a Map and its DescriptorArray together, skipping transitions.
   void MarkMapContents(Map* map);
   void MarkAccessorPairSlot(HeapObject* accessors, int offset);