chromium/third_party/blink/web_tests/external/wpt/css/filter-effects/tainting-fegaussianblur-001.html

<!DOCTYPE html>
<title>feGaussianBlur: does not taint the filter chain</title>
<link rel="help" href="https://drafts.fxtf.org/filter-effects/#tainted-filter-primitives">
<link rel="help" href="https://drafts.fxtf.org/filter-effects/#fedisplacemnentmap-restrictions">
<link rel="match" href="reference/green-blue-stripe-100x100.html">
<svg>
  <linearGradient id="g">
    <stop stop-color="red"/>
    <stop stop-color="red" offset=".5"/>
    <stop stop-color="green" offset=".5"/>
    <stop stop-color="green" offset="1"/>
  </linearGradient>
  <filter id="gaussian_notaint" color-interpolation-filters="sRGB"
          filterUnits="userSpaceOnUse">
    <feFlood flood-color="rgb(0%, 100%, 50%)"/>
    <feGaussianBlur stdDeviation="0"/>
    <feDisplacementMap in="SourceGraphic"
                       xChannelSelector="G" yChannelSelector="B"
                       scale="100"/>
  </filter>
  <rect width="100" height="100" fill="blue"/>
  <rect width="100" height="100" fill="url(#g)"
        filter="url(#gaussian_notaint)"/>
</svg>