Change filter quality when scaling-down in drawImage

third_party/WebKit/Source/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 744 matching lines @@
     if (contextDisabled() || !image)
         return;
 
     const FloatRect src = srcPtr ? *srcPtr : image->rect();
 
     SkPaint imagePaint = immutableState()->fillPaint();
     imagePaint.setXfermodeMode(op);
     imagePaint.setColor(SK_ColorBLACK);
     imagePaint.setFilterQuality(computeFilterQuality(image, dest, src));
     imagePaint.setAntiAlias(shouldAntialias());
-    image->draw(m_canvas, imagePaint, dest, src, shouldRespectImageOrientation, Image::ClampImageToSourceRect);
+    image->draw(m_canvas, imagePaint, dest, src, true, shouldRespectImageOrientation, Image::ClampImageToSourceRect);
     m_paintController.setImagePainted();
 }
 
 void GraphicsContext::drawImageRRect(Image* image, const FloatRoundedRect& dest,
     const FloatRect& srcRect, SkXfermode::Mode op, RespectImageOrientationEnum respectOrientation)
 {
     if (contextDisabled() || !image)
         return;
 
     if (!dest.isRounded()) {
@@ skipping 20 matching lines @@
         useShader = image->applyShader(imagePaint, localMatrix);
     }
 
     if (useShader) {
         // Shader-based fast path.
         m_canvas->drawRRect(dest, imagePaint);
     } else {
         // Clip-based fallback.
         SkAutoCanvasRestore autoRestore(m_canvas, true);
         m_canvas->clipRRect(dest, SkRegion::kIntersect_Op, imagePaint.isAntiAlias());
-        image->draw(m_canvas, imagePaint, dest.rect(), srcRect, respectOrientation, Image::ClampImageToSourceRect);
+        image->draw(m_canvas, imagePaint, dest.rect(), srcRect, true, respectOrientation, Image::ClampImageToSourceRect);
     }
 
     m_paintController.setImagePainted();
 }
 
 SkFilterQuality GraphicsContext::computeFilterQuality(Image* image, const FloatRect& dest, const FloatRect& src) const
 {
     InterpolationQuality resampling;
     if (printing()) {
         resampling = InterpolationNone;
@@ skipping 514 matching lines @@
     static const SkPMColor colors[] = {
         SkPreMultiplyARGB(0x60, 0xFF, 0x00, 0x00), // More transparent red
         SkPreMultiplyARGB(0x60, 0xC0, 0xC0, 0xC0)  // More transparent gray
     };
 
     return colors[index];
 }
 #endif
 
 } // namespace blink