Restore webkit-font-smoothing.

Source/platform/fonts/linux/FontPlatformDataLinux.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 54 matching lines @@
 void FontPlatformData::setAntiAlias(bool useAntiAlias)
 {
     useSkiaAntiAlias = useAntiAlias;
 }
 
 void FontPlatformData::setSubpixelRendering(bool useSubpixelRendering)
 {
     useSkiaSubpixelRendering = useSubpixelRendering;
 }
 
-void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext* context)
-    const
+void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext* context, const Font*) const
 {
     paint->setAntiAlias(m_style.useAntiAlias);
     paint->setHinting(static_cast<SkPaint::Hinting>(m_style.hintStyle));
     paint->setEmbeddedBitmapText(m_style.useBitmaps);
     paint->setAutohinted(m_style.useAutoHint);
     if (m_style.useAntiAlias)
         paint->setLCDRenderText(m_style.useSubpixelRendering);
 
     // Do not enable subpixel text on low-dpi if full hinting is requested.
     bool useSubpixelText = RuntimeEnabledFeatures::subpixelFontScalingEnabled()
@@ skipping 52 matching lines @@
         || LayoutTestSupport::isRunningLayoutTest())
         m_style.useSubpixelPositioning = useSkiaSubpixelPositioning;
 }
 
 bool FontPlatformData::defaultUseSubpixelPositioning()
 {
     return FontDescription::subpixelPositioning();
 }
 
 } // namespace blink