Update SkBlurImageFilter to sk_sp

gm/spritebitmap.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 "SkCanvas.h"
 #include "SkBlurImageFilter.h"
 #include "SkRSXform.h"
 #include "SkSurface.h"
 
 static void make_bm(SkBitmap* bm) {
     bm->allocN32Pixels(100, 100);
     bm->eraseColor(SK_ColorBLUE);
 
     SkCanvas canvas(*bm);
     SkPaint paint;
     paint.setAntiAlias(true);
     paint.setColor(SK_ColorRED);
     canvas.drawCircle(50, 50, 50, paint);
 }
 
 static void draw_1_bitmap(SkCanvas* canvas, const SkBitmap& bm, bool doClip,
-                         int dx, int dy, SkImageFilter* filter = nullptr) {
+                         int dx, int dy, sk_sp<SkImageFilter> filter) {
     SkAutoCanvasRestore acr(canvas, true);
     SkPaint paint;
 
     SkRect clipR = SkRect::MakeXYWH(SkIntToScalar(dx),
                                     SkIntToScalar(dy),
                                     SkIntToScalar(bm.width()),
                                     SkIntToScalar(bm.height()));
 
-    paint.setImageFilter(filter);
+    paint.setImageFilter(std::move(filter));
     clipR.inset(5, 5);
 
     canvas->translate(SkIntToScalar(bm.width() + 20), 0);
 
     if (doClip) {
         canvas->save();
         canvas->clipRect(clipR);
     }
     canvas->drawBitmap(bm, SkIntToScalar(dx), SkIntToScalar(dy), &paint);
     if (doClip) {
@@ skipping 19 matching lines @@
     }
 
     void onDraw(SkCanvas* canvas) override {
         SkBitmap bm;
         make_bm(&bm);
 
         int dx = 10;
         int dy = 10;
 
         SkScalar sigma = 8;
-        SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(sigma, sigma));
+        sk_sp<SkImageFilter> filter(SkBlurImageFilter::Make(sigma, sigma, nullptr));
 
-        draw_1_bitmap(canvas, bm, false, dx, dy);
+        draw_1_bitmap(canvas, bm, false, dx, dy, nullptr);
         dy += bm.height() + 20;
         draw_1_bitmap(canvas, bm, false, dx, dy, filter);
         dy += bm.height() + 20;
-        draw_1_bitmap(canvas, bm, true, dx, dy);
+        draw_1_bitmap(canvas, bm, true, dx, dy, nullptr);
         dy += bm.height() + 20;
         draw_1_bitmap(canvas, bm, true, dx, dy, filter);
     }
 
 private:
     typedef GM INHERITED;
 };
 DEF_GM( return new SpriteBitmapGM; )