CSS conic gradient

third_party/WebKit/Source/platform/graphics/Gradient.h

Index: third_party/WebKit/Source/platform/graphics/Gradient.h
diff --git a/third_party/WebKit/Source/platform/graphics/Gradient.h b/third_party/WebKit/Source/platform/graphics/Gradient.h
index d50203119a39538a60b8036419addedd6290f60d..693646c5d8f1bc53b29eb34f752ff36fe8c45ec9 100644
--- a/third_party/WebKit/Source/platform/graphics/Gradient.h
+++ b/third_party/WebKit/Source/platform/graphics/Gradient.h
@@ -52,6 +52,10 @@ public:
     {
         return adoptRef(new Gradient(p0, p1));
     }
+    static PassRefPtr<Gradient> create(const FloatPoint& p0, float startAngle)
+    {
+        return adoptRef(new Gradient(p0, startAngle));
+    }
     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));
@@ -70,8 +74,8 @@ public:
 
     bool shaderChanged() const { return !m_gradient; }
 
-    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); }
+    bool isRadial() const { return m_class == RadialClass; }
+    bool isZeroSize() const { return m_p0.x() == m_p1.x() && m_p0.y() == m_p1.y() && (!isRadial() || m_r0 == m_r1); }
 
     const FloatPoint& p0() const { return m_p0; }
     const FloatPoint& p1() const { return m_p1; }
@@ -124,19 +128,26 @@ public:
 
 private:
     Gradient(const FloatPoint& p0, const FloatPoint& p1);
+    Gradient(const FloatPoint& p0, float starAngle);
     Gradient(const FloatPoint& p0, float r0, const FloatPoint& p1, float r1, float aspectRatio);
 
     sk_sp<SkShader> createShader();
 
     void sortStopsIfNecessary();
 
+    enum GradientClass {
+        LinearClass,
+        RadialClass,
+        ConicClass,
+    };
+
     FloatPoint m_p0;
     FloatPoint m_p1;
     float m_r0;
     float m_r1;
     float m_aspectRatio; // For elliptical gradient, width / height.
     Vector<ColorStop, 2> m_stops;
-    bool m_radial;
+    GradientClass m_class;
     bool m_stopsSorted;
     bool m_drawInPMColorSpace;
     GradientSpreadMethod m_spreadMethod;