Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/Gradient.h

Index: Source/core/platform/graphics/Gradient.h
diff --git a/Source/core/platform/graphics/Gradient.h b/Source/core/platform/graphics/Gradient.h
deleted file mode 100644
index cd7ba6c9140642efab49076c4708dcd5db87a1dd..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/Gradient.h
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * 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
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef Gradient_h
-#define Gradient_h
-
-#include "platform/geometry/FloatPoint.h"
-#include "platform/graphics/GraphicsTypes.h"
-#include "platform/transforms/AffineTransform.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
-#include "wtf/RefPtr.h"
-#include "wtf/Vector.h"
-
-class SkShader;
-
-namespace WebCore {
-
-class Color;
-class FloatRect;
-class IntSize;
-
-class 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));
-    }
-    ~Gradient();
-
-    struct ColorStop {
-        float stop;
-        float red;
-        float green;
-        float blue;
-        float alpha;
-
-        ColorStop() : stop(0), red(0), green(0), blue(0), alpha(0) { }
-        ColorStop(float s, float r, float g, float b, float a) : stop(s), red(r), green(g), blue(b), alpha(a) { }
-    };
-    void addColorStop(const ColorStop&);
-    void addColorStop(float, const Color&);
-
-    bool hasAlpha() const;
-
-    bool isRadial() const { return m_radial; }
-    bool isZeroSize() const { return m_p0.x() == m_p1.x() && m_p0.y() == m_p1.y() && (!m_radial || m_r0 == m_r1); }
-
-    const FloatPoint& p0() const { return m_p0; }
-    const FloatPoint& p1() const { return m_p1; }
-
-    void setP0(const FloatPoint& p)
-    {
-        if (m_p0 == p)
-            return;
-
-        m_p0 = p;
-    }
-
-    void setP1(const FloatPoint& p)
-    {
-        if (m_p1 == p)
-            return;
-
-        m_p1 = p;
-    }
-
-    float startRadius() const { return m_r0; }
-    float endRadius() const { return m_r1; }
-
-    void setStartRadius(float r)
-    {
-        if (m_r0 == r)
-            return;
-
-        m_r0 = r;
-    }
-
-    void setEndRadius(float r)
-    {
-        if (m_r1 == r)
-            return;
-
-        m_r1 = r;
-    }
-
-    float aspectRatio() const { return m_aspectRatio; }
-
-    SkShader* shader();
-
-    void setStopsSorted(bool s) { m_stopsSorted = s; }
-
-    void setDrawsInPMColorSpace(bool drawInPMColorSpace);
-
-    void setSpreadMethod(GradientSpreadMethod);
-    GradientSpreadMethod spreadMethod() { return m_spreadMethod; }
-    void setGradientSpaceTransform(const AffineTransform& gradientSpaceTransformation);
-    AffineTransform gradientSpaceTransform() { return m_gradientSpaceTransformation; }
-
-private:
-    Gradient(const FloatPoint& p0, const FloatPoint& p1);
-    Gradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1, float aspectRatio);
-
-    void destroyShader();
-
-    void sortStopsIfNecessary();
-
-    // Keep any parameters relevant to rendering in sync with the structure in Gradient::hash().
-    bool m_radial;
-    FloatPoint m_p0;
-    FloatPoint m_p1;
-    float m_r0;
-    float m_r1;
-    float m_aspectRatio; // For elliptical gradient, width / height.
-    mutable Vector<ColorStop, 2> m_stops;
-    mutable bool m_stopsSorted;
-    GradientSpreadMethod m_spreadMethod;
-    AffineTransform m_gradientSpaceTransformation;
-
-    bool m_drawInPMColorSpace;
-
-    RefPtr<SkShader> m_gradient;
-};
-
-} // namespace WebCore
-
-#endif