[heap] Marking cleanup

src/heap/mark-compact.h

Index: src/heap/mark-compact.h
diff --git a/src/heap/mark-compact.h b/src/heap/mark-compact.h
index c40989596c9939027ef7189e2ae18ecd41a1e46a..9cd733f691e3ebc15c533e164d69b05d2c12975b 100644
--- a/src/heap/mark-compact.h
+++ b/src/heap/mark-compact.h
@@ -516,7 +516,6 @@ class MarkCompactCollector {
   static const uint32_t kSingleFreeEncoding = 0;
   static const uint32_t kMultiFreeEncoding = 1;
 
-  static inline bool IsMarked(Object* obj);
   static bool IsUnmarkedHeapObjectWithHeap(Heap* heap, Object** p);
 
   inline Heap* heap() const { return heap_; }
@@ -569,10 +568,6 @@ class MarkCompactCollector {
 
   bool evacuation() const { return evacuation_; }
 
-  // Special case for processing weak references in a full collection. We need
-  // to artificially keep AllocationSites alive for a time.
-  void MarkAllocationSite(AllocationSite* site);
-
   // Mark objects in implicit references groups if their parent object
   // is marked.
   void MarkImplicitRefGroups(MarkObjectFunction mark_object);
@@ -663,10 +658,6 @@ class MarkCompactCollector {
   // This is for non-incremental marking only.
   INLINE(void MarkObject(HeapObject* obj, MarkBit mark_bit));
 
-  // Marks the object black assuming that it is not yet marked.
-  // This is for non-incremental marking only.
-  INLINE(void SetMark(HeapObject* obj));
-
   // Mark the heap roots and all objects reachable from them.
   void MarkRoots(RootMarkingVisitor<MarkCompactMode::FULL>* visitor);