Update SkXfermodeImageFilter to sk_sp

samplecode/SampleFilterFuzz.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 "SampleCode.h"
 #include "Sk1DPathEffect.h"
 #include "Sk2DPathEffect.h"
 #include "SkAlphaThresholdFilter.h"
@@ skipping 570 matching lines @@
                                          make_scalar(true),
                                          make_image_filter());
         break;
     case MAGNIFIER:
         filter = sk_sp<SkImageFilter>(SkMagnifierImageFilter::Create(make_rect(), 
                                                                      make_scalar(true)));
         break;
     case DOWN_SAMPLE:
         filter = sk_sp<SkImageFilter>(SkDownSampleImageFilter::Create(make_scalar()));
         break;
-    case XFERMODE: {
-        sk_sp<SkImageFilter> subFilter1(make_image_filter());
-        sk_sp<SkImageFilter> subFilter2(make_image_filter());
+    case XFERMODE:
         filter = SkXfermodeImageFilter::Make(SkXfermode::Make(make_xfermode()),
-                                             subFilter1.get(),
-                                             subFilter2.get(),
+                                             make_image_filter(),
+                                             make_image_filter(),
                                              nullptr);
         break;
-    }
     case OFFSET:
         filter = SkOffsetImageFilter::Make(make_scalar(), make_scalar(), make_image_filter());
         break;
     case MATRIX: {
         sk_sp<SkImageFilter> subFilter(make_image_filter());
         filter = sk_sp<SkImageFilter>(SkImageFilter::CreateMatrixFilter(make_matrix(),
                                                                         (SkFilterQuality)R(4),
                                                                         subFilter.get()));
         break;
     }
@@ skipping 245 matching lines @@
     }
 
 private:
     typedef SkView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new ImageFilterFuzzView; }
 static SkViewRegister reg(MyFactory);