Accurate transfer of SerializedScriptValue allocation costs.

third_party/WebKit/Source/wtf/ThreadSafeRefCounted.h

 /*
  * Copyright (C) 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 32 matching lines @@
   USING_FAST_MALLOC(ThreadSafeRefCountedBase);
 
  public:
   ThreadSafeRefCountedBase(int initialRefCount = 1)
       : m_refCount(initialRefCount) {}
 
   void ref() { atomicIncrement(&m_refCount); }
 
   bool hasOneRef() { return refCount() == 1; }
 
-  int refCount() const { return static_cast<int const volatile&>(m_refCount); }
+  int refCount() const { return acquireLoad(&m_refCount); }
 
  protected:
   // Returns whether the pointer should be freed or not.
   bool derefBase() {
     WTF_ANNOTATE_HAPPENS_BEFORE(&m_refCount);
     if (atomicDecrement(&m_refCount) <= 0) {
       WTF_ANNOTATE_HAPPENS_AFTER(&m_refCount);
       return true;
     }
     return false;
@@ skipping 13 matching lines @@
 
  protected:
   ThreadSafeRefCounted() {}
 };
 
 }  // namespace WTF
 
 using WTF::ThreadSafeRefCounted;
 
 #endif  // ThreadSafeRefCounted_h