Make sp variants for SkData

src/core/SkPictureData.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPictureData_DEFINED
 #define SkPictureData_DEFINED
 
@@ skipping 59 matching lines @@
 
     void serialize(SkWStream*, SkPixelSerializer*, SkRefCntSet*) const;
     void flatten(SkWriteBuffer&) const;
 
     bool containsBitmaps() const;
 
     bool hasText() const { return fContentInfo.hasText(); }
 
     int opCount() const { return fContentInfo.numOperations(); }
 
-    const SkData* opData() const { return fOpData; }
+    const sk_sp<SkData>& opData() const { return fOpData; }
 
 protected:
     explicit SkPictureData(const SkPictInfo& info);
 
     // Does not affect ownership of SkStream.
     bool parseStream(SkStream*, SkPicture::InstallPixelRefProc, SkTypefacePlayback*);
     bool parseBuffer(SkReadBuffer& buffer);
 
 public:
     const SkBitmap& getBitmap(SkReader32* reader) const {
@@ skipping 60 matching lines @@
     void flattenToBuffer(SkWriteBuffer&) const;
 
     // Only used by getBitmap() if the passed in index is SkBitmapHeap::INVALID_SLOT. This empty
     // bitmap allows playback to draw nothing and move on.
     SkBitmap fBadBitmap;
 
     SkTArray<SkBitmap> fBitmaps;
     SkTArray<SkPaint>  fPaints;
     SkTArray<SkPath>   fPaths;
 
-    SkData* fOpData;    // opcodes and parameters
+    sk_sp<SkData>   fOpData;    // opcodes and parameters
 
     const SkPicture** fPictureRefs;
     int fPictureCount;
     const SkTextBlob** fTextBlobRefs;
     int fTextBlobCount;
     const SkImage** fImageRefs;
     int fImageCount;
 
     SkPictureContentInfo fContentInfo;
 
     SkTypefacePlayback fTFPlayback;
     SkFactoryPlayback* fFactoryPlayback;
 
     const SkPictInfo fInfo;
 
     static void WriteFactories(SkWStream* stream, const SkFactorySet& rec);
     static void WriteTypefaces(SkWStream* stream, const SkRefCntSet& rec);
 
     void initForPlayback() const;
 };
 
 #endif