remove shadeSpan16 from shader

src/core/SkBitmapProcShader.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 SkBitmapProcShader_DEFINED
@@ skipping 25 matching lines @@
 protected:
     class BitmapProcShaderContext : public SkShader::Context {
     public:
         // The context takes ownership of the state. It will call its destructor
         // but will NOT free the memory.
         BitmapProcShaderContext(const SkShader&, const ContextRec&, SkBitmapProcState*);
         ~BitmapProcShaderContext() override;
 
         void shadeSpan(int x, int y, SkPMColor dstC[], int count) override;
         ShadeProc asAShadeProc(void** ctx) override;
-        void shadeSpan16(int x, int y, uint16_t dstC[], int count) override;
 
         uint32_t getFlags() const override { return fFlags; }
 
     private:
         SkBitmapProcState*  fState;
         uint32_t            fFlags;
 
         typedef SkShader::Context INHERITED;
     };
     
@@ skipping 20 matching lines @@
 // Note that some contexts may contain other contexts (e.g. for compose shaders), but we've not
 // yet found a situation where the size below isn't big enough.
 typedef SkSmallAllocator<3, 1160> SkTBlitterAllocator;
 
 // If alloc is non-nullptr, it will be used to allocate the returned SkShader, and MUST outlive
 // the SkShader.
 SkShader* SkCreateBitmapShader(const SkBitmap& src, SkShader::TileMode, SkShader::TileMode,
                                const SkMatrix* localMatrix, SkTBlitterAllocator* alloc);
 
 #endif