Do not include "wtf/Platform.h" directly

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 16 matching lines @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ThreadSafeRefCounted_h
 #define ThreadSafeRefCounted_h
 
 #include "wtf/Atomics.h"
 #include "wtf/DynamicAnnotations.h"
 #include "wtf/FastAllocBase.h"
 #include "wtf/Noncopyable.h"
-#include "wtf/Platform.h"
 #include "wtf/WTFExport.h"
 
 namespace WTF {
 
 class WTF_EXPORT ThreadSafeRefCountedBase {
     WTF_MAKE_NONCOPYABLE(ThreadSafeRefCountedBase);
     WTF_MAKE_FAST_ALLOCATED;
 public:
     ThreadSafeRefCountedBase(int initialRefCount = 1)
         : m_refCount(initialRefCount)
@@ skipping 43 matching lines @@
     ThreadSafeRefCounted()
     {
     }
 };
 
 } // namespace WTF
 
 using WTF::ThreadSafeRefCounted;
 
 #endif // ThreadSafeRefCounted_h