include RefCounted.h where needed, only.

third_party/WebKit/Source/core/style/NinePieceImage.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2013 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 13 matching lines @@
 #ifndef NinePieceImage_h
 #define NinePieceImage_h
 
 #include "core/CoreExport.h"
 #include "core/style/BorderImageLengthBox.h"
 #include "core/style/DataRef.h"
 #include "core/style/StyleImage.h"
 #include "platform/LayoutUnit.h"
 #include "platform/LengthBox.h"
 #include "wtf/Allocator.h"
+#include "wtf/RefCounted.h"
 
 namespace blink {
 
 enum ENinePieceImageRule {
     StretchImageRule, RoundImageRule, SpaceImageRule, RepeatImageRule
 };
 
 class CORE_EXPORT NinePieceImageData : public RefCounted<NinePieceImageData> {
 public:
     static PassRefPtr<NinePieceImageData> create() { return adoptRef(new NinePieceImageData); }
@@ skipping 83 matching lines @@
         return LayoutUnit(outsetSide.length().value());
     }
 
 private:
     DataRef<NinePieceImageData> m_data;
 };
 
 } // namespace blink
 
 #endif // NinePieceImage_h