Bug 1503038 [wpt PR 13767] - [css-properties-values-api] Compute <angle> values to 'deg'., a=testonly

Automatic update from web-platform-tests[css-properties-values-api] Compute <angle> values to 'deg'.

R=futhark@chromium.org

Bug: 641877
Change-Id: I52878c9bca16765d3b32127b5637a7ec521e76dc
Reviewed-on: https://chromium-review.googlesource.com/c/1304416
Commit-Queue: Anders Ruud <andruud@chromium.org>
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603672}

--

wpt-commits: 0cc29e423fd0785b5f906a903d9010519595a4ac
wpt-pr: 13767

testing/web-platform/tests/css/css-properties-values-api/registered-property-computation.html

@@ -140,5 +140,12 @@ for (let element of [divWithFontSizeSet, divWithFontSizeInherited]) {
         assert_computed_value('tomato | plum', 'plum', 'plum');
         assert_computed_value('tomato | plum | <color>', 'plum', 'plum');
     }, "ident values that look like color keywords are not converted to colors" + id);
+
+    test(function() {
+        assert_computed_value('*', '-50grad', '-50grad');
+        assert_computed_value('<angle>', '180deg', '180deg');
+        assert_computed_value('<angle>', '400grad', '360deg');
+        assert_computed_value('<angle>', 'calc(360deg + 400grad)', '720deg');
+    }, "<angle> values computed correctly for " + id);
 }
 </script>