Replace GraphicsContext::setupPaintFor* with const getters.

Source/platform/graphics/StrokeData.h

 // 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:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
 // copyright notice, this list of conditions and the following disclaimer
@@ skipping 66 matching lines @@
 
     LineJoin lineJoin() const { return (LineJoin)m_lineJoin; }
     void setLineJoin(LineJoin join) { m_lineJoin = (SkPaint::Join)join; }
 
     float miterLimit() const { return m_miterLimit; }
     void setMiterLimit(float miterLimit) { m_miterLimit = miterLimit; }
 
     void setLineDash(const DashArray&, float);
 
     // Sets everything on the paint except the pattern, gradient and color.
-    // GraphicsContext::setupShader does that. If a non-zero length is provided, the
-    // number of dashes/dots on a dashed/dotted line will be adjusted to
-    // start and end that length with a dash/dot.
+    // If a non-zero length is provided, the number of dashes/dots on a
+    // dashed/dotted line will be adjusted to start and end that length with a
+    // dash/dot.
     void setupPaint(SkPaint*, int length = 0) const;
 
     // Setup any DashPathEffect on the paint. If a non-zero length is provided,
     // and no line dash has been set, the number of dashes/dots on a dashed/dotted
     // line will be adjusted to start and end that length with a dash/dot.
     void setupPaintDashPathEffect(SkPaint*, int) const;
 
 private:
     StrokeStyle m_style;
     float m_thickness;
     Color m_color;
     RefPtr<Gradient> m_gradient;
     RefPtr<Pattern> m_pattern;
     SkPaint::Cap m_lineCap;
     SkPaint::Join m_lineJoin;
     float m_miterLimit;
     RefPtr<SkDashPathEffect> m_dash;
 };
 
 } // namespace WebCore
 
 #endif // StrokeData_h