include RefCounted.h where needed, only.

third_party/WebKit/Source/modules/canvas2d/CanvasGradient.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 14 matching lines @@
  */
 
 #ifndef CanvasGradient_h
 #define CanvasGradient_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "modules/ModulesExport.h"
 #include "platform/graphics/Gradient.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
 
 namespace blink {
 
 class ExceptionState;
 
 class MODULES_EXPORT CanvasGradient final : public GarbageCollectedFinalized<CanvasGradient>, public ScriptWrappable {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static CanvasGradient* create(const FloatPoint& p0, const FloatPoint& p1)
     {
@@ skipping 13 matching lines @@
 private:
     CanvasGradient(const FloatPoint& p0, const FloatPoint& p1);
     CanvasGradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1);
 
     RefPtr<Gradient> m_gradient;
 };
 
 } // namespace blink
 
 #endif // CanvasGradient_h