Image generator-backed SkPictureShader

src/core/SkPictureShader.h

Index: src/core/SkPictureShader.h
diff --git a/src/core/SkPictureShader.h b/src/core/SkPictureShader.h
index 9b270e3899daa2ea8671b4992379f53e410c5e44..f0bad61ef56bb5b85611e1cd8484afc10aa79237 100644
--- a/src/core/SkPictureShader.h
+++ b/src/core/SkPictureShader.h
@@ -24,7 +24,6 @@ class SkPictureShader : public SkShader {
 public:
     static SkShader* Create(const SkPicture*, TileMode, TileMode, const SkMatrix*,
                                    const SkRect*);
-    virtual ~SkPictureShader();
 
     size_t contextSize() const override;
 
@@ -49,9 +48,9 @@ private:
 
     SkShader* refBitmapShader(const SkMatrix&, const SkMatrix* localMatrix, const int maxTextureSize = 0) const;
 
-    const SkPicture* fPicture;
-    SkRect           fTile;
-    TileMode         fTmx, fTmy;
+    SkAutoTUnref<const SkPicture> fPicture;
+    SkRect                        fTile;
+    TileMode                      fTmx, fTmy;
 
     class PictureShaderContext : public SkShader::Context {
     public: