Change filter quality when scaling-down in drawImage

third_party/WebKit/Source/core/layout/shapes/Shape.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. 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.
@@ skipping 187 matching lines @@
     std::unique_ptr<ImageBuffer> imageBuffer = ImageBuffer::create(imageRect.size());
 
     if (image && imageBuffer) {
         // FIXME: This is not totally correct but it is needed to prevent shapes
         // that loads SVG Images during paint invalidations to mark layoutObjects for
         // layout, which is not allowed. See https://crbug.com/429346
         ImageObserverDisabler disabler(image);
         SkPaint paint;
         IntRect imageSourceRect(IntPoint(), image->size());
         IntRect imageDestRect(IntPoint(), imageRect.size());
-        image->draw(imageBuffer->canvas(), paint, imageDestRect, imageSourceRect, DoNotRespectImageOrientation, Image::DoNotClampImageToSourceRect);
+        image->draw(imageBuffer->canvas(), paint, imageDestRect, imageSourceRect, true, DoNotRespectImageOrientation, Image::DoNotClampImageToSourceRect);
 
         WTF::ArrayBufferContents contents;
         imageBuffer->getImageData(Unmultiplied, IntRect(IntPoint(), imageRect.size()), contents);
         DOMArrayBuffer* arrayBuffer = DOMArrayBuffer::create(contents);
         DOMUint8ClampedArray* pixelArray = DOMUint8ClampedArray::create(arrayBuffer, 0, arrayBuffer->byteLength());
         unsigned pixelArrayOffset = 3; // Each pixel is four bytes: RGBA.
         uint8_t alphaPixelThreshold = threshold * 255;
 
         ASSERT(static_cast<unsigned>(imageRect.width() * imageRect.height() * 4) == pixelArray->length());
 
@@ skipping 27 matching lines @@
     FloatRect rect(0, 0, roundedRect.rect().width(), roundedRect.rect().height());
     FloatRoundedRect bounds(rect, roundedRect.getRadii());
     std::unique_ptr<Shape> shape = createInsetShape(bounds);
     shape->m_writingMode = writingMode;
     shape->m_margin = margin;
 
     return shape;
 }
 
 } // namespace blink