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chromium/third_party/blink/web_tests/external/wpt/compat/historical.html 

<!doctype html>
<title>Historical non-standard features</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
test(function() {
  assert_false("getMatchedCSSRules" in window);
}, "getMatchedCSSRules() should not exist");

test(function() {
  assert_false("webkitHidden" in window);
}, "webkitHidden should not exist");

test(function() {
  assert_false("webkitVisibilityState" in window);
}, "webkitVisibilityState should not exist");
</script>