guard rasterizer and drawlooper setters

src/effects/SkLayerDrawLooper.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkReadBuffer.h"
@@ skipping 212 matching lines @@
         LayerInfo info;
         // Legacy "flagsmask" field -- now ignored, remove when we bump version
         (void)buffer.readInt();
 
         info.fPaintBits = buffer.readInt();
         info.fColorMode = (SkXfermode::Mode)buffer.readInt();
         buffer.readPoint(&info.fOffset);
         info.fPostTranslate = buffer.readBool();
         buffer.readPaint(builder.addLayerOnTop(info));
     }
-    return builder.detachLooper();
+    return builder.detach().release();
 }
 
 #ifndef SK_IGNORE_TO_STRING
 void SkLayerDrawLooper::toString(SkString* str) const {
     str->appendf("SkLayerDrawLooper (%d): ", fCount);
 
     Rec* rec = fRecs;
     for (int i = 0; i < fCount; i++) {
         str->appendf("%d: paintBits: (", i);
         if (0 == rec->fInfo.fPaintBits) {
@@ skipping 93 matching lines @@
         fRecs = rec;
     } else {
         SkASSERT(fTopRec);
         fTopRec->fNext = rec;
     }
     fTopRec = rec;
 
     return &rec->fPaint;
 }
 
-SkLayerDrawLooper* SkLayerDrawLooper::Builder::detachLooper() {
+sk_sp<SkDrawLooper> SkLayerDrawLooper::Builder::detach() {
     SkLayerDrawLooper* looper = new SkLayerDrawLooper;
     looper->fCount = fCount;
     looper->fRecs = fRecs;
 
     fCount = 0;
     fRecs = nullptr;
     fTopRec = nullptr;
 
-    return looper;
+    return sk_sp<SkDrawLooper>(looper);
 }