change flattenable factory to return sk_sp

tests/LayerRasterizerTest.cpp

Index: tests/LayerRasterizerTest.cpp
diff --git a/tests/LayerRasterizerTest.cpp b/tests/LayerRasterizerTest.cpp
index b71c305d59740a67d545db5a38e203780c3e87c6..9d1fb2937af753f6fbd2da3637ab7d3a63bc3ab8 100644
--- a/tests/LayerRasterizerTest.cpp
+++ b/tests/LayerRasterizerTest.cpp
@@ -43,7 +43,9 @@ private:
 
 int DummyRasterizer::gCount;
 
-SkFlattenable* DummyRasterizer::CreateProc(SkReadBuffer&) { return new DummyRasterizer; }
+sk_sp<SkFlattenable> DummyRasterizer::CreateProc(SkReadBuffer&) {
+    return sk_make_sp<DummyRasterizer>();
+}
 
 // Check to make sure that the SkPaint in the layer has its destructor called.
 DEF_TEST(LayerRasterizer_destructor, reporter) {