guard rasterizer and drawlooper setters

src/effects/SkLayerRasterizer.cpp

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkLayerRasterizer.h"
@@ skipping 178 matching lines @@
 
 void SkLayerRasterizer::Builder::addLayer(const SkPaint& paint, SkScalar dx,
                                           SkScalar dy) {
     SkASSERT(fLayers);
     SkLayerRasterizer_Rec* rec = (SkLayerRasterizer_Rec*)fLayers->push_back();
 
     new (&rec->fPaint) SkPaint(paint);
     rec->fOffset.set(dx, dy);
 }
 
-SkLayerRasterizer* SkLayerRasterizer::Builder::detachRasterizer() {
+sk_sp<SkLayerRasterizer> SkLayerRasterizer::Builder::detach() {
     SkLayerRasterizer* rasterizer;
     if (0 == fLayers->count()) {
         rasterizer = nullptr;
         delete fLayers;
     } else {
         rasterizer = new SkLayerRasterizer(fLayers);
     }
     fLayers = nullptr;
-    return rasterizer;
+    return sk_sp<SkLayerRasterizer>(rasterizer);
 }
 
-SkLayerRasterizer* SkLayerRasterizer::Builder::snapshotRasterizer() const {
+sk_sp<SkLayerRasterizer> SkLayerRasterizer::Builder::snapshot() const {
     if (0 == fLayers->count()) {
         return nullptr;
     }
     SkDeque* layers = new SkDeque(sizeof(SkLayerRasterizer_Rec), fLayers->count());
     SkDeque::F2BIter                iter(*fLayers);
     const SkLayerRasterizer_Rec*    recOrig;
     SkDEBUGCODE(int                 count = 0;)
     while ((recOrig = static_cast<SkLayerRasterizer_Rec*>(iter.next())) != nullptr) {
         SkDEBUGCODE(count++);
         SkLayerRasterizer_Rec* recCopy = static_cast<SkLayerRasterizer_Rec*>(layers->push_back());
         new (&recCopy->fPaint) SkPaint(recOrig->fPaint);
         recCopy->fOffset = recOrig->fOffset;
     }
     SkASSERT(fLayers->count() == count);
     SkASSERT(layers->count() == count);
-    SkLayerRasterizer* rasterizer = new SkLayerRasterizer(layers);
-    return rasterizer;
+    return sk_sp<SkLayerRasterizer>(new SkLayerRasterizer(layers));
 }