use Descriptor struct to encapsulate all the common paramaeters between our various gradient types.…

src/effects/gradients/SkTwoPointConicalGradient.h

Index: src/effects/gradients/SkTwoPointConicalGradient.h
diff --git a/src/effects/gradients/SkTwoPointConicalGradient.h b/src/effects/gradients/SkTwoPointConicalGradient.h
index 0807ae32014b10276098697ad324b654f99efbaa..1358f0b2ac4b85cef506a51c2fe2d57fc1e0d9a6 100644
--- a/src/effects/gradients/SkTwoPointConicalGradient.h
+++ b/src/effects/gradients/SkTwoPointConicalGradient.h
@@ -47,9 +47,7 @@ class SkTwoPointConicalGradient : public SkGradientShaderBase {
 public:
     SkTwoPointConicalGradient(const SkPoint& start, SkScalar startRadius,
                               const SkPoint& end, SkScalar endRadius,
-                              const SkColor colors[], const SkScalar pos[],
-                              int colorCount, SkShader::TileMode mode,
-                              SkUnitMapper* mapper);
+                              const Descriptor&);
 
     virtual void shadeSpan(int x, int y, SkPMColor* dstCParam,
                            int count) SK_OVERRIDE;