Clean up forward declarations in Source/platform

Source/platform/graphics/Gradient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2008 Torch Mobile, Inc.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * 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
@@ skipping 25 matching lines @@
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Vector.h"
 
 class SkShader;
 
 namespace blink {
 
-class FloatRect;
-class IntSize;
-
 class PLATFORM_EXPORT Gradient : public RefCounted<Gradient> {
 public:
     static PassRefPtr<Gradient> create(const FloatPoint& p0, const FloatPoint& p1)
     {
         return adoptRef(new Gradient(p0, p1));
     }
     static PassRefPtr<Gradient> create(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1, float aspectRatio = 1)
     {
         return adoptRef(new Gradient(p0, r0, p1, r1, aspectRatio));
     }
@@ skipping 82 matching lines @@
     bool m_drawInPMColorSpace;
     GradientSpreadMethod m_spreadMethod;
     AffineTransform m_gradientSpaceTransformation;
 
     RefPtr<SkShader> m_gradient;
 };
 
 } // namespace blink
 
 #endif