Disable antialising for shapes with shape-rendering="optimizeSpeed"

third_party/WebKit/Source/core/paint/SVGShapePainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/SVGShapePainter.h"
 
 #include "core/layout/svg/LayoutSVGResourceMarker.h"
 #include "core/layout/svg/LayoutSVGShape.h"
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/layout/svg/SVGMarkerData.h"
@@ skipping 42 matching lines @@
 
     PaintInfo paintInfoBeforeFiltering(paintInfo);
     // Shapes cannot have children so do not call updateCullRect.
     TransformRecorder transformRecorder(paintInfoBeforeFiltering.context, m_layoutSVGShape, m_layoutSVGShape.localSVGTransform());
     {
         SVGPaintContext paintContext(m_layoutSVGShape, paintInfoBeforeFiltering);
         if (paintContext.applyClipMaskAndFilterIfNecessary() && !LayoutObjectDrawingRecorder::useCachedDrawingIfPossible(paintContext.paintInfo().context, m_layoutSVGShape, paintContext.paintInfo().phase)) {
             LayoutObjectDrawingRecorder recorder(paintContext.paintInfo().context, m_layoutSVGShape, paintContext.paintInfo().phase, boundingBox);
             const SVGComputedStyle& svgStyle = m_layoutSVGShape.style()->svgStyle();
 
-            bool shouldAntiAlias = svgStyle.shapeRendering() != SR_CRISPEDGES;
+            bool shouldAntiAlias = svgStyle.shapeRendering() != SR_CRISPEDGES && svgStyle.shapeRendering() != SR_OPTIMIZESPEED;
 
             for (int i = 0; i < 3; i++) {
                 switch (svgStyle.paintOrderType(i)) {
                 case PT_FILL: {
                     SkPaint fillPaint;
                     if (!SVGPaintContext::paintForLayoutObject(paintContext.paintInfo(), m_layoutSVGShape.styleRef(), m_layoutSVGShape, ApplyToFillMode, fillPaint))
                         break;
                     fillPaint.setAntiAlias(shouldAntiAlias);
                     fillShape(paintContext.paintInfo().context, fillPaint, fillRuleFromStyle(paintContext.paintInfo(), svgStyle));
                     break;
@@ skipping 141 matching lines @@
         return;
 
     TransformRecorder transformRecorder(paintInfo.context, marker, marker.markerTransformation(position.origin, position.angle, strokeWidth));
     Optional<FloatClipRecorder> clipRecorder;
     if (SVGLayoutSupport::isOverflowHidden(&marker))
         clipRecorder.emplace(paintInfo.context, marker, paintInfo.phase, marker.viewport());
     SVGContainerPainter(marker).paint(paintInfo);
 }
 
 } // namespace blink