Update DisplacementMapEffect to sk_sp

tests/ImageFilterTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkBitmapDevice.h"
 #include "SkBlurImageFilter.h"
@@ skipping 142 matching lines @@
 
             this->addFilter("color filter",
                 SkColorFilterImageFilter::Make(std::move(cf), input, cropRect));
         }
 
         {
             sk_sp<SkImage> gradientImage(SkImage::MakeFromBitmap(make_gradient_circle(64, 64)));
             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,
                                                         SK_Scalar1,
                                                         input,
                                                         cropRect));
         this->addFilter("drop shadow", SkDropShadowImageFilter::Make(
                   SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_ColorGREEN,
                   SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode,
                   input, cropRect));
@@ skipping 1590 matching lines @@
 
     test_xfermode_cropped_input(&canvas, reporter);
 }
 
 DEF_GPUTEST_FOR_ALL_GL_CONTEXTS(ImageFilterBlurLargeImage_Gpu, reporter, ctxInfo) {
     auto surface(SkSurface::MakeRenderTarget(ctxInfo.fGrContext, SkBudgeted::kYes,
                                              SkImageInfo::MakeN32Premul(100, 100)));
     test_large_blur_input(reporter, surface->getCanvas());
 }
 #endif