Bug 1517833 [wpt PR 14720] - Update wpt metadata, a=testonly

wpt-pr: 14720 wpt-type: metadata
2019-01-05 04:21:45 +00:00 · 2019-01-05 04:21:45 +00:00 · 3e1a53e09c
--- a/testing/web-platform/meta/portals/portals-rendering.html.ini
+++ b/testing/web-platform/meta/portals/portals-rendering.html.ini
@ -0,0 +1,2 @@
+[portals-rendering.html]
+  expected: TIMEOUT