Remove the remainder of the skia source code from the Chromium repo....

skia/effects/SkUnitMappers.cpp

-#include "SkUnitMappers.h"
-
-SkDiscreteMapper::SkDiscreteMapper(int segments)
-{
-    if (segments < 2)
-    {
-        fSegments = 0;
-        fScale = 0;
-    }
-    else
-    {
-        if (segments > 0xFFFF)
-            segments = 0xFFFF;
-        fSegments = segments;
-        fScale = SK_Fract1 / (segments - 1);
-    }
-}
-
-uint16_t SkDiscreteMapper::mapUnit16(uint16_t input)
-{
-    SkFixed x = input * fSegments >> 16;
-    x = x * fScale >> 14;
-    x += x << 15 >> 31; // map 0x10000 to 0xFFFF
-    return SkToU16(x);
-}
-
-SkDiscreteMapper::SkDiscreteMapper(SkFlattenableReadBuffer& rb)
-    : SkUnitMapper(rb)
-{
-    fSegments = rb.readU32();
-    fScale = rb.readU32();
-}
-
-SkFlattenable::Factory SkDiscreteMapper::getFactory()
-{
-    return Create;
-}
-
-SkFlattenable* SkDiscreteMapper::Create(SkFlattenableReadBuffer& rb)
-{
-    return SkNEW_ARGS(SkDiscreteMapper, (rb));
-}
-
-void SkDiscreteMapper::flatten(SkFlattenableWriteBuffer& wb)
-{
-    this->INHERITED::flatten(wb);
-
-    wb.write32(fSegments);
-    wb.write32(fScale);
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-uint16_t SkCosineMapper::mapUnit16(uint16_t input)
-{
-    /*  we want to call cosine(input * pi/2) treating input as [0...1)
-        however, the straight multitply would overflow 32bits since input is
-        16bits and pi/2 is 17bits, so we shift down our pi const before we mul
-    */
-    SkFixed rads = (unsigned)(input * (SK_FixedPI >> 2)) >> 15;
-    SkFixed x = SkFixedCos(rads);
-    x += x << 15 >> 31; // map 0x10000 to 0xFFFF
-    return SkToU16(x);
-}
-
-SkCosineMapper::SkCosineMapper(SkFlattenableReadBuffer& rb)
-    : SkUnitMapper(rb)
-{
-}
-
-SkFlattenable::Factory SkCosineMapper::getFactory()
-{
-    return Create;
-}
-
-SkFlattenable* SkCosineMapper::Create(SkFlattenableReadBuffer& rb)
-{
-    return SkNEW_ARGS(SkCosineMapper, (rb));
-}
-