Update DisplacementMapEffect to sk_sp

tests/ImageFilterTest.cpp

Index: tests/ImageFilterTest.cpp
diff --git a/tests/ImageFilterTest.cpp b/tests/ImageFilterTest.cpp
index 114c342ada91b09e94ec0ef754e59cd77a9c2ed1..172f84fa772b9b1183c9f5d428cf84d43616724e 100644
--- a/tests/ImageFilterTest.cpp
+++ b/tests/ImageFilterTest.cpp
@@ -160,10 +160,10 @@ public:
             sk_sp<SkImageFilter> gradientSource(SkImageSource::Make(std::move(gradientImage)));
 
             this->addFilter("displacement map", 
-                sk_sp<SkImageFilter>(SkDisplacementMapEffect::Create(
-                                        SkDisplacementMapEffect::kR_ChannelSelectorType,
-                                        SkDisplacementMapEffect::kB_ChannelSelectorType,
-                                        20.0f, gradientSource.get(), input.get(), cropRect)));
+                SkDisplacementMapEffect::Make(SkDisplacementMapEffect::kR_ChannelSelectorType,
+                                              SkDisplacementMapEffect::kB_ChannelSelectorType,
+                                              20.0f,
+                                              std::move(gradientSource), input, cropRect));
         }
 
         this->addFilter("blur", SkBlurImageFilter::Make(SK_Scalar1,