Unify markbits for old and new spaces.

src/heap.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 5056 matching lines @@
   cell_space_ = new CellSpace(this, max_old_generation_size_, CELL_SPACE);
   if (cell_space_ == NULL) return false;
   if (!cell_space_->Setup()) return false;
 
   // The large object code space may contain code or data.  We set the memory
   // to be non-executable here for safety, but this means we need to enable it
   // explicitly when allocating large code objects.
   lo_space_ = new LargeObjectSpace(this, LO_SPACE);
   if (lo_space_ == NULL) return false;
   if (!lo_space_->Setup()) return false;
-
-  if (!marking()->Setup()) return false;
-
   if (create_heap_objects) {
     // Create initial maps.
     if (!CreateInitialMaps()) return false;
     if (!CreateApiObjects()) return false;
 
     // Create initial objects
     if (!CreateInitialObjects()) return false;
 
     global_contexts_list_ = undefined_value();
   }
@@ skipping 77 matching lines @@
     delete cell_space_;
     cell_space_ = NULL;
   }
 
   if (lo_space_ != NULL) {
     lo_space_->TearDown();
     delete lo_space_;
     lo_space_ = NULL;
   }
 
-  marking()->TearDown();
   store_buffer()->TearDown();
 
   isolate_->memory_allocator()->TearDown();
 
 #ifdef DEBUG
   delete debug_utils_;
   debug_utils_ = NULL;
 #endif
 }
 
@@ skipping 766 matching lines @@
 }
 
 
 void ExternalStringTable::TearDown() {
   new_space_strings_.Free();
   old_space_strings_.Free();
 }
 
 
 } }  // namespace v8::internal