Change signature of SkSpecialImage::draw to take SkScalars

src/core/SkSpecialImage.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file
  */
 
 #ifndef SkSpecialImage_DEFINED
 #define SkSpecialImage_DEFINED
 
@@ skipping 19 matching lines @@
  * Note: the contents of the backing storage outside of the subset rect are undefined.
  */
 class SkSpecialImage : public SkRefCnt {
 public:
     int width() const { return fSubset.width(); }
     int height() const { return fSubset.height(); }
 
     /**
      *  Draw this SpecialImage into the canvas.
      */
-    void draw(SkCanvas*, int x, int y, const SkPaint*) const;
+    void draw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const;
 
     static SkSpecialImage* NewFromImage(const SkIRect& subset, const SkImage*);
     static SkSpecialImage* NewFromRaster(const SkIRect& subset, const SkBitmap&);
     static SkSpecialImage* NewFromGpu(const SkIRect& subset, GrTexture*);
 
     /**
      *  Create a new surface with a backend that is compatible with this image.
      */
     SkSpecialSurface* newSurface(const SkImageInfo&) const;
 
@@ skipping 24 matching lines @@
     GrTexture* peekTexture() const;
 
 private:
     const SkIRect fSubset;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif