more shader-->sp conversions

gm/gradientDirtyLaundry.cpp

Index: gm/gradientDirtyLaundry.cpp
diff --git a/gm/gradientDirtyLaundry.cpp b/gm/gradientDirtyLaundry.cpp
index 8ef5fc92292ccc4ad8915b2d4276a81d90e4f85e..3fca7f276c8896f64adfd74c4dbfe1f587ad67a4 100644
--- a/gm/gradientDirtyLaundry.cpp
+++ b/gm/gradientDirtyLaundry.cpp
@@ -35,27 +35,22 @@ static const GradData gGradData[] = {
     //  { 2, gCol2, nullptr },
 };
 
-static SkShader* MakeLinear(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
-    return SkGradientShader::CreateLinear(pts, data.fColors, data.fPos, data.fCount, tm);
+static sk_sp<SkShader> MakeLinear(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
+    return SkGradientShader::MakeLinear(pts, data.fColors, data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeRadial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
-    SkPoint center;
-    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
-               SkScalarAve(pts[0].fY, pts[1].fY));
-    return SkGradientShader::CreateRadial(center, center.fX, data.fColors,
-                                          data.fPos, data.fCount, tm);
+static sk_sp<SkShader> MakeRadial(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm) {
+    const SkPoint pt{ SkScalarAve(pts[0].fX, pts[1].fX), SkScalarAve(pts[0].fY, pts[1].fY) };
+    return SkGradientShader::MakeRadial(pt, pt.fX, data.fColors, data.fPos, data.fCount, tm);
 }
 
-static SkShader* MakeSweep(const SkPoint pts[2], const GradData& data, SkShader::TileMode) {
-    SkPoint center;
-    center.set(SkScalarAve(pts[0].fX, pts[1].fX),
-               SkScalarAve(pts[0].fY, pts[1].fY));
-    return SkGradientShader::CreateSweep(center.fX, center.fY, data.fColors, data.fPos, data.fCount);
+static sk_sp<SkShader> MakeSweep(const SkPoint pts[2], const GradData& data, SkShader::TileMode) {
+    const SkPoint pt{ SkScalarAve(pts[0].fX, pts[1].fX), SkScalarAve(pts[0].fY, pts[1].fY) };
+    return SkGradientShader::MakeSweep(pt.fX, pt.fY, data.fColors, data.fPos, data.fCount);
 }
 
 
-typedef SkShader* (*GradMaker)(const SkPoint pts[2], const GradData& data, SkShader::TileMode tm);
+typedef sk_sp<SkShader> (*GradMaker)(const SkPoint pts[2], const GradData&, SkShader::TileMode);
 
 static const GradMaker gGradMakers[] = {
     MakeLinear, MakeRadial, MakeSweep,
@@ -86,8 +81,7 @@ protected:
         for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
             canvas->save();
             for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
-                SkShader* shader = gGradMakers[j](pts, gGradData[i], tm);
-                paint.setShader(shader)->unref();
+                paint.setShader(gGradMakers[j](pts, gGradData[i], tm));
                 canvas->drawRect(r, paint);
                 canvas->translate(0, SkIntToScalar(120));
             }