Rename "NoBarrier" memory operations to "Relaxed".

src/objects.h

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 #include <memory>
 
@@ skipping 3371 matching lines @@
 // They look like heap objects (are heap object tagged and have a map) so that
 // the heap remains iterable.  They have a size and a next pointer.
 // The next pointer is the raw address of the next FreeSpace object (or NULL)
 // in the free list.
 class FreeSpace: public HeapObject {
  public:
   // [size]: size of the free space including the header.
   inline int size() const;
   inline void set_size(int value);
 
-  inline int nobarrier_size() const;
-  inline void nobarrier_set_size(int value);
+  inline int relaxed_read_size() const;
+  inline void relaxed_write_size(int value);
 
   inline int Size();
 
   // Accessors for the next field.
   inline FreeSpace* next();
   inline void set_next(FreeSpace* next);
 
   inline static FreeSpace* cast(HeapObject* obj);
 
   // Dispatched behavior.
@@ skipping 5944 matching lines @@
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #include "src/objects/object-macros-undef.h"
 
 #endif  // V8_OBJECTS_H_