Bug 1608869 [wpt PR 21146] - Update wpt metadata, a=testonly

wpt-pr: 21146 wpt-type: metadata
2020-02-21 15:22:20 +00:00 · 2020-02-21 15:22:20 +00:00 · 6ab4360228
--- a/testing/web-platform/meta/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/blob-data.https.html.ini
+++ b/testing/web-platform/meta/html/infrastructure/safe-passing-of-structured-data/shared-array-buffers/blob-data.https.html.ini
@ -0,0 +1,2 @@
+[blob-data.https.html]
+  expected: TIMEOUT