Record slots in large objects.

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 6a0c9d58cd3d852f7a8f4228d339b3127a1e99fa..a930b5d1b3a623924e90378c070f67612422ac34 100644
--- a/src/heap/mark-compact.cc
+++ b/src/heap/mark-compact.cc
@@ -3636,24 +3636,6 @@ void MarkCompactCollector::EvacuateNewSpaceAndCandidates() {
       PrintF("  migration slots buffer: %d\n",
              SlotsBuffer::SizeOfChain(migration_slots_buffer_));
     }
-
-    if (compacting_ && was_marked_incrementally_) {
-      GCTracer::Scope gc_scope(heap()->tracer(),
-                               GCTracer::Scope::MC_RESCAN_LARGE_OBJECTS);
-      // It's difficult to filter out slots recorded for large objects.
-      LargeObjectIterator it(heap_->lo_space());
-      for (HeapObject* obj = it.Next(); obj != NULL; obj = it.Next()) {
-        // LargeObjectSpace is not swept yet thus we have to skip
-        // dead objects explicitly.
-        if (!IsMarked(obj)) continue;
-
-        Page* p = Page::FromAddress(obj->address());
-        if (p->IsFlagSet(Page::RESCAN_ON_EVACUATION)) {
-          obj->Iterate(&updating_visitor);
-          p->ClearFlag(Page::RESCAN_ON_EVACUATION);
-        }
-      }
-    }
   }
 
   int npages = evacuation_candidates_.length();