Update MatrixConvolutionImageFilter to sk_sp

gm/matrixconvolution.cpp

 /*
  * Copyright 2012 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 "SkColor.h"
 #include "SkMatrixConvolutionImageFilter.h"
@@ skipping 40 matching lines @@
               SkMatrixConvolutionImageFilter::TileMode tileMode, bool convolveAlpha,
               const SkImageFilter::CropRect* cropRect = nullptr) {
         SkScalar kernel[9] = {
             SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
             SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1),
             SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1),
         };
         SkISize kernelSize = SkISize::Make(3, 3);
         SkScalar gain = 0.3f, bias = SkIntToScalar(100);
         SkPaint paint;
-        SkAutoTUnref<SkImageFilter> filter(
-            SkMatrixConvolutionImageFilter::Create(kernelSize,
-                                                   kernel,
-                                                   gain,
-                                                   bias,
-                                                   kernelOffset,
-                                                   tileMode,
-                                                   convolveAlpha,
-                                                   nullptr,
-                                                   cropRect));
-        paint.setImageFilter(filter);
+        paint.setImageFilter(SkMatrixConvolutionImageFilter::Make(kernelSize,
+                                                                  kernel,
+                                                                  gain,
+                                                                  bias,
+                                                                  kernelOffset,
+                                                                  tileMode,
+                                                                  convolveAlpha,
+                                                                  nullptr,
+                                                                  cropRect));
         canvas->save();
         canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
         canvas->clipRect(SkRect::MakeWH(SkIntToScalar(fBitmap.width()),
                                         SkIntToScalar(fBitmap.height())));
         canvas->drawBitmap(fBitmap, 0, 0, &paint);
         canvas->restore();
     }
 
     typedef SkMatrixConvolutionImageFilter MCIF;
 
@@ skipping 26 matching lines @@
     SkBitmap fBitmap;
 
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 DEF_GM(return new MatrixConvolutionGM;)
 
 }