Remove software path from filters: purge unused applySkia.

Source/platform/graphics/filters/FilterEffect.cpp

 /*
  * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 185 matching lines @@
     setResultColorSpace(m_operatingColorSpace);
 
     if (!isFilterSizeValid(m_absolutePaintRect))
         return;
 
     if (requiresValidPreMultipliedPixels()) {
         for (unsigned i = 0; i < size; ++i)
             inputEffect(i)->correctFilterResultIfNeeded();
     }
 
-    if (applySkia())
-        return;
-
     applySoftware();
 }
 
 void FilterEffect::forceValidPreMultipliedPixels()
 {
     // Must operate on pre-multiplied results; other formats cannot have invalid pixels.
     if (!m_premultipliedImageResult)
         return;
 
     Uint8ClampedArray* imageArray = m_premultipliedImageResult.get();
@@ skipping 345 matching lines @@
     }
     if (hasHeight()) {
         rect.setHeight(boundaries.height());
         flags |= SkImageFilter::CropRect::kHasBottom_CropEdge;
     }
     rect = filter()->mapLocalRectToAbsoluteRect(rect);
     return SkImageFilter::CropRect(rect, flags);
 }
 
 } // namespace WebCore