Auto merge of #26831 - servo-wpt-sync:wpt_update_09-06-2020, r=jdm

Sync WPT with upstream (09-06-2020)

Automated downstream sync of changes from upstream as of 09-06-2020.
[no-wpt-sync]
r? @servo-wpt-sync

1 files changed, 9 insertions, 2 deletions

diff --git a/tests/wpt/web-platform-tests/css/css-properties-values-api/at-property-cssom.html b/tests/wpt/web-platform-tests/css/css-properties-values-api/at-property-cssom.html
index 5a0ef9f5d00..46671fedd4e 100644
--- a/tests/wpt/web-platform-tests/css/css-properties-values-api/at-property-cssom.html
+++ b/tests/wpt/web-platform-tests/css/css-properties-values-api/at-property-cssom.html
@@ -55,8 +55,8 @@
 <script>
 
 function find_at_property_rule(name) {
-  for (let rule of  document.styleSheets[0].cssRules) {
-    if (rule.type != CSSRule.PROPERTY_RULE)
+  for (let rule of document.styleSheets[0].cssRules) {
+    if (rule.constructor.name != "CSSPropertyRule")
       continue;
     if (rule.name == name)
       return rule;
@@ -120,6 +120,13 @@ test_css_text('--syntax-only', '@property --syntax-only { syntax: "<color> | non
 test_css_text('--inherits-only', '@property --inherits-only { inherits: true; }');
 test_css_text('--initial-value-only', '@property --initial-value-only { initial-value: red; }');
 
+// CSSRule.type
+
+test(() => {
+  let rule = find_at_property_rule('--valid');
+  assert_equals(rule.type, 0);
+}, 'CSSRule.type returns 0');
+
 // CSSPropertyRule.name
 
 test_name('--valid');