Minor Gradient cleanup.

Source/platform/graphics/Gradient.h

Index: Source/platform/graphics/Gradient.h
diff --git a/Source/platform/graphics/Gradient.h b/Source/platform/graphics/Gradient.h
index 2cfb76c2824170e35ed375b5fb543bdedbeb1270..ff48b9f9a2e754a45a88ef4c864190461cc235dc 100644
--- a/Source/platform/graphics/Gradient.h
+++ b/Source/platform/graphics/Gradient.h
@@ -65,7 +65,7 @@ public:
         ColorStop(float s, const Color& c) : stop(s), color(c) { }
     };
     void addColorStop(const ColorStop&);
-    void addColorStop(float, const Color&);
+    void addColorStop(float value, const Color& color) { addColorStop(ColorStop(value, color)); }
 
     bool hasAlpha() const;
     bool shaderChanged() const { return !m_gradient; }
@@ -115,8 +115,6 @@ public:
 
     SkShader* shader();
 
-    void setStopsSorted(bool s) { m_stopsSorted = s; }
-
     void setDrawsInPMColorSpace(bool drawInPMColorSpace);
 
     void setSpreadMethod(GradientSpreadMethod);