delete (unused) TransparentShader

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
 
 #include "SkBitmap.h"
 #include "SkFlattenable.h"
 #include "SkMask.h"
 #include "SkMatrix.h"
 #include "SkPaint.h"
 #include "../gpu/GrColor.h"
 
@@ skipping 88 matching lines @@
      *  colors, subject to the SkPaint using the shader to apply an opaque
      *  alpha value. Subclasses should override this to allow some
      *  optimizations.
      */
     virtual bool isOpaque() const { return false; }
 
     /**
      *  ContextRec acts as a parameter bundle for creating Contexts.
      */
     struct ContextRec {
-        ContextRec() : fDevice(NULL), fPaint(NULL), fMatrix(NULL), fLocalMatrix(NULL) {}
-        ContextRec(const SkBitmap& device, const SkPaint& paint, const SkMatrix& matrix)
-            : fDevice(&device)
-            , fPaint(&paint)
+        ContextRec(const SkPaint& paint, const SkMatrix& matrix, const SkMatrix* localM)
+            : fPaint(&paint)
             , fMatrix(&matrix)
-            , fLocalMatrix(NULL) {}
+            , fLocalMatrix(localM) {}
 
-        const SkBitmap* fDevice;        // the bitmap we are drawing into
         const SkPaint*  fPaint;         // the current paint associated with the draw
         const SkMatrix* fMatrix;        // the current matrix in the canvas
         const SkMatrix* fLocalMatrix;   // optional local matrix
     };
 
     class Context : public ::SkNoncopyable {
     public:
         Context(const SkShader& shader, const ContextRec&);
 
         virtual ~Context();
@@ skipping 345 matching lines @@
     // constructors.
     SkMatrix fLocalMatrix;
 
     // So the SkLocalMatrixShader can whack fLocalMatrix in its SkReadBuffer constructor.
     friend class SkLocalMatrixShader;
 
     typedef SkFlattenable INHERITED;
 };
 
 #endif