Delete remaining masks dead code.

sky/engine/platform/graphics/GraphicsContext.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 1631 matching lines @@
     radii[SkRRect::kUpperRight_Corner].set(SkIntToScalar(topRight.width()),
         SkIntToScalar(topRight.height()));
     radii[SkRRect::kLowerRight_Corner].set(SkIntToScalar(bottomRight.width()),
         SkIntToScalar(bottomRight.height()));
     radii[SkRRect::kLowerLeft_Corner].set(SkIntToScalar(bottomLeft.width()),
         SkIntToScalar(bottomLeft.height()));
 }
 
 PassRefPtr<SkColorFilter> GraphicsContext::WebCoreColorFilterToSkiaColorFilter(ColorFilter colorFilter)
 {
-    switch (colorFilter) {
-    case ColorFilterLuminanceToAlpha:
-        return adoptRef(SkLumaColorFilter::Create());
-    case ColorFilterLinearRGBToSRGB:
-        return ImageBuffer::createColorSpaceFilter(ColorSpaceLinearRGB, ColorSpaceDeviceRGB);
-    case ColorFilterSRGBToLinearRGB:
-        return ImageBuffer::createColorSpaceFilter(ColorSpaceDeviceRGB, ColorSpaceLinearRGB);
-    case ColorFilterNone:
-        break;
-    default:
-        ASSERT_NOT_REACHED();
-        break;
-    }
-
+    // FIXME(sky): Remove
     return nullptr;
 }
 
 void GraphicsContext::draw2xMarker(SkBitmap* bitmap, int index)
 {
     const SkPMColor lineColor = lineColors(index);
     const SkPMColor antiColor1 = antiColors1(index);
     const SkPMColor antiColor2 = antiColors2(index);
 
     uint32_t* row1 = bitmap->getAddr32(0, 0);
@@ skipping 125 matching lines @@
         // FIXME: This is to not break tests (it results in the filter bitmap flag
         // being set to true). We need to decide if we respect InterpolationNone
         // being returned from computeInterpolationQuality.
         resampling = InterpolationLow;
     }
     resampling = limitInterpolationQuality(this, resampling);
     paint->setFilterLevel(static_cast<SkPaint::FilterLevel>(resampling));
 }
 
 } // namespace blink