SkPDF: PDFShader code modernized.

src/pdf/SkPDFGraphicState.h

 /*
  * Copyright 2010 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 SkPDFGraphicState_DEFINED
 #define SkPDFGraphicState_DEFINED
@@ skipping 33 matching lines @@
     static SkPDFGraphicState* GetGraphicStateForPaint(SkPDFCanon* canon,
                                                       const SkPaint& paint);
 
     /** Make a graphic state that only sets the passed soft mask.
      *  @param sMask     The form xobject to use as a soft mask.
      *  @param invert    Indicates if the alpha of the sMask should be inverted.
      *  @param sMaskMode Whether to use alpha or luminosity for the sMask.
      *
      *  These are not de-duped.
      */
-    static sk_sp<SkPDFDict> GetSMaskGraphicState(SkPDFObject* sMask,
+    static sk_sp<SkPDFDict> GetSMaskGraphicState(sk_sp<SkPDFObject> sMask,
                                                  bool invert,
                                                  SkPDFSMaskMode sMaskMode,
                                                  SkPDFCanon* canon);
 
     /** Make a graphic state that only unsets the soft mask. */
     static sk_sp<SkPDFDict> MakeNoSmaskGraphicState();
     static sk_sp<SkPDFStream> MakeInvertFunction();
 
     bool operator==(const SkPDFGraphicState& rhs) const {
         return 0 == memcmp(&fStrokeWidth, &rhs.fStrokeWidth, 12);
     }
     uint32_t hash() const { return SkChecksum::Murmur3(&fStrokeWidth, 12); }
 
 private:
     const SkScalar fStrokeWidth;
     const SkScalar fStrokeMiter;
     const uint8_t fAlpha;
     const uint8_t fStrokeCap;   // SkPaint::Cap
     const uint8_t fStrokeJoin;  // SkPaint::Join
     const uint8_t fMode;        // SkXfermode::Mode
 
     SkPDFGraphicState(const SkPaint&);
 
     typedef SkPDFDict INHERITED;
 };
 
 #endif