guard rasterizer and drawlooper setters

include/effects/SkLayerRasterizer.h

-
 /*
  * 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.
  */
 
-
 #ifndef SkLayerRasterizer_DEFINED
 #define SkLayerRasterizer_DEFINED
 
 #include "SkRasterizer.h"
 #include "SkDeque.h"
 #include "SkScalar.h"
 
 class SkPaint;
 
 class SK_API SkLayerRasterizer : public SkRasterizer {
@@ skipping 17 matching lines @@
           */
         void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy);
 
         /**
           *  Pass queue of layers on to newly created layer rasterizer and return it. The builder
           *  *cannot* be used any more after calling this function. If no layers have been added,
           *  returns NULL.
           *
           *  The caller is responsible for calling unref() on the returned object, if non NULL.
           */
-        SkLayerRasterizer* detachRasterizer();
+        sk_sp<SkLayerRasterizer> detach();
 
         /**
           *  Create and return a new immutable SkLayerRasterizer that contains a shapshot of the
           *  layers that were added to the Builder, without modifying the Builder. The Builder
           *  *may* be used after calling this function. It will continue to hold any layers
           *  previously added, so consecutive calls to this function will return identical objects,
           *  and objects returned by future calls to this function contain all the layers in
           *  previously returned objects. If no layers have been added, returns NULL.
           *
           *  Future calls to addLayer will not affect rasterizers previously returned by this call.
           *
           *  The caller is responsible for calling unref() on the returned object, if non NULL.
           */
-        SkLayerRasterizer* snapshotRasterizer() const;
+        sk_sp<SkLayerRasterizer> snapshot() const;
+    
+#ifdef SK_SUPPORT_LEGACY_MINOR_EFFECT_PTR
+        SkLayerRasterizer* detachRasterizer() {
+            return this->detach().release();
+        }
+        SkLayerRasterizer* snapshotRasterizer() const {
+            return this->snapshot().release();
+        }
+#endif
 
     private:
         SkDeque* fLayers;
     };
 
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLayerRasterizer)
 
 protected:
     SkLayerRasterizer();
     SkLayerRasterizer(SkDeque* layers);
     void flatten(SkWriteBuffer&) const override;
 
     // override from SkRasterizer
     virtual bool onRasterize(const SkPath& path, const SkMatrix& matrix,
                              const SkIRect* clipBounds,
                              SkMask* mask, SkMask::CreateMode mode) const override;
 
 private:
     const SkDeque* const fLayers;
 
     static SkDeque* ReadLayers(SkReadBuffer& buffer);
 
     friend class LayerRasterizerTester;
 
     typedef SkRasterizer INHERITED;
 };
 
 #endif