more shader-->sp conversions

gm/shallowgradient.cpp

Index: gm/shallowgradient.cpp
diff --git a/gm/shallowgradient.cpp b/gm/shallowgradient.cpp
index 764b1a50342c710da213046e2cd0c66ea5b1cf15..6990ba7c938da6f38dac23b968d80f8cccc58af8 100644
--- a/gm/shallowgradient.cpp
+++ b/gm/shallowgradient.cpp
@@ -8,31 +8,27 @@
 #include "gm.h"
 #include "SkGradientShader.h"
 
-typedef SkShader* (*MakeShaderProc)(const SkColor[], int count, const SkSize&);
+typedef sk_sp<SkShader> (*MakeShaderProc)(const SkColor[], int count, const SkSize&);
 
-static SkShader* shader_linear(const SkColor colors[], int count, const SkSize& size) {
+static sk_sp<SkShader> shader_linear(const SkColor colors[], int count, const SkSize& size) {
     SkPoint pts[] = { { 0, 0 }, { size.width(), size.height() } };
-    return SkGradientShader::CreateLinear(pts, colors, nullptr, count,
-                                          SkShader::kClamp_TileMode);
+    return SkGradientShader::MakeLinear(pts, colors, nullptr, count, SkShader::kClamp_TileMode);
 }
 
-static SkShader* shader_radial(const SkColor colors[], int count, const SkSize& size) {
+static sk_sp<SkShader> shader_radial(const SkColor colors[], int count, const SkSize& size) {
     SkPoint center = { size.width()/2, size.height()/2 };
-    return SkGradientShader::CreateRadial(center, size.width()/2, colors, nullptr, count,
-                                          SkShader::kClamp_TileMode);
+    return SkGradientShader::MakeRadial(center, size.width()/2, colors, nullptr, count,
+                                        SkShader::kClamp_TileMode);
 }
 
-static SkShader* shader_conical(const SkColor colors[], int count, const SkSize& size) {
+static sk_sp<SkShader> shader_conical(const SkColor colors[], int count, const SkSize& size) {
     SkPoint center = { size.width()/2, size.height()/2 };
-    return SkGradientShader::CreateTwoPointConical(center, size.width()/64,
-                                                   center, size.width()/2,
-                                                   colors, nullptr, count,
-                                                   SkShader::kClamp_TileMode);
+    return SkGradientShader::MakeTwoPointConical(center, size.width()/64, center, size.width()/2,
+                                                colors, nullptr, count, SkShader::kClamp_TileMode);
 }
 
-static SkShader* shader_sweep(const SkColor colors[], int count, const SkSize& size) {
-    return SkGradientShader::CreateSweep(size.width()/2, size.height()/2,
-                                         colors, nullptr, count);
+static sk_sp<SkShader> shader_sweep(const SkColor colors[], int count, const SkSize& size) {
+    return SkGradientShader::MakeSweep(size.width()/2, size.height()/2, colors, nullptr, count);
 }
 
 class ShallowGradientGM : public skiagm::GM {
@@ -62,7 +58,7 @@ protected:
         SkSize size = SkSize::Make(r.width(), r.height());
 
         SkPaint paint;
-        paint.setShader(fProc(colors, colorCount, size))->unref();
+        paint.setShader(fProc(colors, colorCount, size));
         paint.setDither(fDither);
         canvas->drawRect(r, paint);
     }