Remove convertToSkiaFilterLevel()

Source/platform/graphics/skia/SkiaUtils.cpp

 /*
  * Copyright (c) 2006,2007,2008, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 181 matching lines @@
 bool nearlyIntegral(float value)
 {
     return fabs(value - floorf(value)) < std::numeric_limits<float>::epsilon();
 }
 
 InterpolationQuality limitInterpolationQuality(const GraphicsContext* context, InterpolationQuality resampling)
 {
     return std::min(resampling, context->imageInterpolationQuality());
 }
 
-SkPaint::FilterLevel convertToSkiaFilterLevel(bool useBicubicFilter, InterpolationQuality resampling)
-{
-    // FIXME: If we get rid of this special case, this function can go away entirely.
-    if (useBicubicFilter)
-        return SkPaint::kHigh_FilterLevel;
-
-    // InterpolationHigh if useBicubicFilter is false means that we do
-    // a manual high quality resampling before drawing to Skia.
-    if (resampling == InterpolationHigh)
-        return SkPaint::kNone_FilterLevel;
-
-    return static_cast<SkPaint::FilterLevel>(resampling);
-}
-
 InterpolationQuality computeInterpolationQuality(
     const SkMatrix& matrix,
     float srcWidth,
     float srcHeight,
     float destWidth,
     float destHeight,
     bool isDataComplete)
 {
     // The percent change below which we will not resample. This usually means
     // an off-by-one error on the web page, and just doing nearest neighbor
@@ skipping 99 matching lines @@
     // though - that's why it's not always on.
     SkScalar widthExpansion, heightExpansion;
     if (totalMatrix.getType() & SkMatrix::kAffine_Mask)
         widthExpansion = totalMatrix[SkMatrix::kMSkewY], heightExpansion = totalMatrix[SkMatrix::kMSkewX];
     else
         widthExpansion = totalMatrix[SkMatrix::kMScaleX], heightExpansion = totalMatrix[SkMatrix::kMScaleY];
     return destRect.width() * fabs(widthExpansion) < 1 || destRect.height() * fabs(heightExpansion) < 1;
 }
 
 }  // namespace blink