Update SkImageSource to sk_sp

gm/imagefilterscropexpand.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "gm.h"
 #include "SkCanvas.h"
 #include "SkColorFilter.h"
@@ skipping 30 matching lines @@
 
     void onDraw(SkCanvas* canvas) override {
         SkImageFilter::CropRect cropRect(
             SkRect::Make(SkIRect::MakeXYWH(10, 10, 44, 44)),
             SkImageFilter::CropRect::kHasAll_CropEdge);
 
         sk_sp<SkImage> gradientCircle(MakeGradientCircle(64, 64));
         SkBitmap checkerboard;
         MakeCheckerboard(&checkerboard);
 
-        SkAutoTUnref<SkImageFilter> gradientCircleSource(
-            SkImageSource::Create(gradientCircle.get()));
+        sk_sp<SkImageFilter> gradientCircleSource(SkImageSource::Make(std::move(gradientCircle)));
         sk_sp<SkImageFilter> noopCropped(SkOffsetImageFilter::Make(0, 0, nullptr, &cropRect));
         SkScalar sk255 = SkIntToScalar(255);
         SkScalar matrix[20] = { 1, 0, 0, 0, 0,
                                 0, 1, 0, 0, sk255,
                                 0, 0, 1, 0, 0,
                                 0, 0, 0, 0, sk255 };
         auto cfAlphaTrans(SkColorFilter::MakeMatrixFilterRowMajor255(matrix));
 
         SkRect r = SkRect::MakeWH(SkIntToScalar(64), SkIntToScalar(64));
         SkScalar MARGIN = SkIntToScalar(12);
@@ skipping 131 matching lines @@
 
         canvas->translate(SkIntToScalar(80), 0);
     }
 
     typedef GM INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 DEF_GM( return new ImageFiltersCropExpandGM; )