switch xfermodes over to sk_sp

include/core/SkShader.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 SkShader_DEFINED
 #define SkShader_DEFINED
 
@@ skipping 386 matching lines @@
 #endif
 
     /**
      *  Create a new compose shader, given shaders dst, src, and a combining xfermode mode.
      *  The xfermode is called with the output of the two shaders, and its output is returned.
      *  If xfer is null, SkXfermode::kSrcOver_Mode is assumed.
      *
      *  The caller is responsible for managing its reference-count for the xfer (if not null).
      */
     static sk_sp<SkShader> MakeComposeShader(sk_sp<SkShader> dst, sk_sp<SkShader> src,
+                                             sk_sp<SkXfermode> xfer);
+#ifdef SK_SUPPORT_LEGACY_XFERMODE_PTR
+    static sk_sp<SkShader> MakeComposeShader(sk_sp<SkShader> dst, sk_sp<SkShader> src,
                                              SkXfermode* xfer);
+#endif
 
     /** Call this to create a new shader that will draw with the specified bitmap.
      *
      *  If the bitmap cannot be used (e.g. has no pixels, or its dimensions
      *  exceed implementation limits (currently at 64K - 1)) then SkEmptyShader
      *  may be returned.
      *
      *  If the src is kA8_Config then that mask will be colorized using the color on
      *  the paint.
      *
@@ skipping 67 matching lines @@
     SkMatrix fLocalMatrix;
 
     // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer constructor.
     friend class SkLocalMatrixShader;
     friend class SkBitmapProcShader;    // for computeTotalInverse()
 
     typedef SkFlattenable INHERITED;
 };
 
 #endif