SkImage now has makeShader to return sk_sp

src/utils/SkLua.cpp

Index: src/utils/SkLua.cpp
diff --git a/src/utils/SkLua.cpp b/src/utils/SkLua.cpp
index b84ba0f5188e844c14d1c3805eb91f7f71f22d05..95ca5adc07389eed82a984a6f6f88d04b16df81a 100644
--- a/src/utils/SkLua.cpp
+++ b/src/utils/SkLua.cpp
@@ -1711,8 +1711,7 @@ static int limage_height(lua_State* L) {
 static int limage_newShader(lua_State* L) {
     SkShader::TileMode tmode = SkShader::kClamp_TileMode;
     const SkMatrix* localM = nullptr;
-    SkAutoTUnref<SkShader> shader(get_ref<SkImage>(L, 1)->newShader(tmode, tmode, localM));
-    push_ref(L, shader.get());
+    push_ref(L, get_ref<SkImage>(L, 1)->makeShader(tmode, tmode, localM));
     return 1;
 }