switch maskfilters to sk_sp

gm/bigblurs.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 "gm.h"
 #include "SkBlurMask.h"
 #include "SkBlurMaskFilter.h"
@@ skipping 52 matching lines @@
         outlinePaint.setStyle(SkPaint::kStroke_Style);
 
         SkPaint blurPaint;
         blurPaint.setAntiAlias(true);
         blurPaint.setColor(SK_ColorBLACK);
 
         int desiredX = 0, desiredY = 0;
 
         for (int i = 0; i < 2; ++i) {
             for (int j = 0; j <= kLastEnum_SkBlurStyle; ++j) {
-                SkMaskFilter* mf = SkBlurMaskFilter::Create((SkBlurStyle)j, kSigma);
-                blurPaint.setMaskFilter(mf)->unref();
+                blurPaint.setMaskFilter(SkBlurMaskFilter::Make((SkBlurStyle)j, kSigma));
 
                 for (int k = 0; k < (int)SK_ARRAY_COUNT(origins); ++k) {
                     canvas->save();
 
                     SkRect clipRect = SkRect::MakeXYWH(SkIntToScalar(desiredX),
                                                        SkIntToScalar(desiredY),
                                                        SkIntToScalar(kCloseUpSize),
                                                        SkIntToScalar(kCloseUpSize));
 
                     canvas->clipRect(clipRect, SkRegion::kReplace_Op, false);
@@ skipping 21 matching lines @@
 private:
     static const int kCloseUpSize = 64;
     static const int kWidth = 5 * kCloseUpSize;
     static const int kHeight = 2 * (kLastEnum_SkBlurStyle + 1) * kCloseUpSize;
 
     typedef GM INHERITED;
 };
 
 DEF_GM(return new BigBlursGM;)
 }