Svg filter feTurbulence with some specific parameters does not display.

Source/core/platform/graphics/filters/FETurbulence.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Renata Hodovan <reni@inf.u-szeged.hu>
  * Copyright (C) 2011 Gabor Loki <loki@webkit.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 410 matching lines @@
 bool FETurbulence::applySkia()
 {
     // For now, only use the skia implementation for accelerated rendering.
     if (filter()->renderingMode() != Accelerated)
         return false;
 
     ImageBuffer* resultImage = createImageBufferResult();
     if (!resultImage)
         return false;
 
-    const IntRect filterRegion = absolutePaintRect();
+    const IntRect filterRegion(IntPoint::zero(), absolutePaintRect().size());
 
     SkPaint paint;
     paint.setShader(createShader(filterRegion))->unref();
     resultImage->context()->drawRect((SkRect)filterRegion, paint);
     return true;
 }
 
 PassRefPtr<SkImageFilter> FETurbulence::createImageFilter(SkiaImageFilterBuilder* builder)
 {
     SkAutoTUnref<SkShader> shader(createShader(IntRect()));
@@ skipping 24 matching lines @@
     FilterEffect::externalRepresentation(ts);
     ts << " type=\"" << type() << "\" "
        << "baseFrequency=\"" << baseFrequencyX() << ", " << baseFrequencyY() << "\" "
        << "seed=\"" << seed() << "\" "
        << "numOctaves=\"" << numOctaves() << "\" "
        << "stitchTiles=\"" << stitchTiles() << "\"]\n";
     return ts;
 }
 
 } // namespace WebCore