Remove SK_SUPPORT_LEGACY_BITMAP_SAMPLER_BIAS

src/core/SkBitmapProcState.h

 /*
  * Copyright 2007 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 SkBitmapProcState_DEFINED
 #define SkBitmapProcState_DEFINED
 
@@ skipping 180 matching lines @@
 // Helper class for mapping the middle of pixel (x, y) into SkFractionalInt bitmap space.
 // TODO: filtered version which applies a fFilterOne{X,Y}/2 bias instead of epsilon?
 class SkBitmapProcStateAutoMapper {
 public:
     SkBitmapProcStateAutoMapper(const SkBitmapProcState& s, int x, int y) {
         SkPoint pt;
         s.fInvProc(s.fInvMatrix,
                    SkIntToScalar(x) + SK_ScalarHalf,
                    SkIntToScalar(y) + SK_ScalarHalf, &pt);
 
-#ifndef SK_SUPPORT_LEGACY_BITMAP_SAMPLER_BIAS
         // SkFixed epsilon bias to ensure inverse-mapped bitmap coordinates are rounded
         // consistently WRT geometry.  Note that we only need the bias for positive scales:
         // for negative scales, the rounding is intrinsically correct.
         // We scale it to persist SkFractionalInt -> SkFixed conversions.
-        fX = SkScalarToFractionalInt(pt.x()) - SkFixedToFractionalInt(s.fInvMatrix.getScaleX() > 0);
-        fY = SkScalarToFractionalInt(pt.y()) - SkFixedToFractionalInt(s.fInvMatrix.getScaleY() > 0);
-#else
-        fX = SkScalarToFractionalInt(pt.x());
-        fY = SkScalarToFractionalInt(pt.y());
-#endif
+        const SkFixed biasX = (s.fInvMatrix.getScaleX() > 0);
+        const SkFixed biasY = (s.fInvMatrix.getScaleY() > 0);
+        fX = SkScalarToFractionalInt(pt.x()) - SkFixedToFractionalInt(biasX);
+        fY = SkScalarToFractionalInt(pt.y()) - SkFixedToFractionalInt(biasY);
     }
 
     SkFractionalInt x() const { return fX; }
     SkFractionalInt y() const { return fY; }
 
 private:
     SkFractionalInt fX, fY;
 };
 
 #endif