Rename "NoBarrier" memory operations to "Relaxed".

src/heap/objects-visiting.h

 // Copyright 2012 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_VISITING_H_
 #define V8_OBJECTS_VISITING_H_
 
 #include "src/allocation.h"
 #include "src/heap/embedder-tracing.h"
 #include "src/heap/heap.h"
@@ skipping 82 matching lines @@
 
 
 template <typename Callback>
 class VisitorDispatchTable {
  public:
   void CopyFrom(VisitorDispatchTable* other) {
     // We are not using memcpy to guarantee that during update
     // every element of callbacks_ array will remain correct
     // pointer (memcpy might be implemented as a byte copying loop).
     for (int i = 0; i < kVisitorIdCount; i++) {
-      base::NoBarrier_Store(&callbacks_[i], other->callbacks_[i]);
+      base::Relaxed_Store(&callbacks_[i], other->callbacks_[i]);
     }
   }
 
   inline Callback GetVisitor(Map* map);
 
   inline Callback GetVisitorById(VisitorId id) {
     return reinterpret_cast<Callback>(callbacks_[id]);
   }
 
   void Register(VisitorId id, Callback callback) {
@@ skipping 299 matching lines @@
 // the next element. Given the head of the list, this function removes dead
 // elements from the list and if requested records slots for next-element
 // pointers. The template parameter T is a WeakListVisitor that defines how to
 // access the next-element pointers.
 template <class T>
 Object* VisitWeakList(Heap* heap, Object* list, WeakObjectRetainer* retainer);
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_VISITING_H_