guard rasterizer and drawlooper setters

bench/RectoriBench.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 "Benchmark.h"
 #include "SkBlurMaskFilter.h"
 #include "SkCanvas.h"
@@ skipping 34 matching lines @@
 
             p.addRect(outer);
             p.addRect(inner);
             p.setFillType(SkPath::kEvenOdd_FillType);
 
             // This will be used to translate the normal draw outside the
             // clip rect and translate the blurred version back inside
             SkScalar translate = 2.0f * size;
 
             SkPaint paint;
-            paint.setLooper(this->createLooper(-translate, blurSigma))->unref();
+            paint.setLooper(this->createLooper(-translate, blurSigma));
             paint.setColor(0xff000000 | Random.nextU());
             paint.setAntiAlias(true);
 
             canvas->save();
             // clip always equals inner rect so we get the inside blur
             canvas->clipRect(inner);
             canvas->translate(translate, 0);
             canvas->drawPath(p, paint);
             canvas->restore();
         }
     }
 
 private:
     enum {
         W = 640,
         H = 480,
     };
 
-    SkLayerDrawLooper* createLooper(SkScalar xOff, SkScalar sigma) {
+    sk_sp<SkDrawLooper> createLooper(SkScalar xOff, SkScalar sigma) {
         SkLayerDrawLooper::Builder looperBuilder;
 
         //-----------------------------------------------
         SkLayerDrawLooper::LayerInfo info;
 
         // TODO: add a color filter to better match what is seen in the wild
         info.fPaintBits = /* SkLayerDrawLooper::kColorFilter_Bit |*/
                           SkLayerDrawLooper::kMaskFilter_Bit;
         info.fColorMode = SkXfermode::kDst_Mode;
         info.fOffset.set(xOff, 0);
         info.fPostTranslate = false;
 
         SkPaint* paint = looperBuilder.addLayer(info);
 
         SkMaskFilter* mf = SkBlurMaskFilter::Create(kNormal_SkBlurStyle,
                                                     sigma,
                                                     SkBlurMaskFilter::kHighQuality_BlurFlag);
         paint->setMaskFilter(mf)->unref();
 
         //-----------------------------------------------
         info.fPaintBits = 0;
         info.fOffset.set(0, 0);
 
         paint = looperBuilder.addLayer(info);
-        return looperBuilder.detachLooper();
+        return looperBuilder.detach();
     }
 
     typedef Benchmark INHERITED;
 };
 
 DEF_BENCH(return new RectoriBench();)