remove unused SkFixed and SkFract functions

experimental/Intersection/SkAntiEdge.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkAntiEdge.h"
 #include "SkPoint.h"
 
+/** Returns the signed fraction of a SkFixed
+ */
+static inline SkFixed SkFixedFraction(SkFixed x)
+{
+    SkFixed mask = x >> 31 << 16;
+    return (x & 0xFFFF) | mask;
+}

[caryclark, 2013/12/19 13:56:57]

alternatives -- 

- let experimental/Intersection bit rot
- remove experimental/Intersection altogether

+
 void SkAntiEdge::pointOnLine(SkFixed x, SkFixed y) {
     float x0 = SkFixedToFloat(x);
     float y0 = SkFixedToFloat(y);
     float x1 = SkFixedToFloat(fFirstX);
     float y1 = SkFixedToFloat(fFirstY);
     float x2 = SkFixedToFloat(fLastX);
     float y2 = SkFixedToFloat(fLastY);
     float numer = (x2 - x1) * (y1 - y0) - (x1 - x0) * (y2 - y1);
     float denom = (x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1);
     double dist = fabs(numer) / sqrt(denom);
@@ skipping 1049 matching lines @@
 #else
     testsweep_test = -1;
 #endif
     if (testsweep_test == -1) {
         test_3_by_3();
     }
     test_sweep();
     test_horz();
     test_vert();
 }