Auto merge of #23004 - servo-wpt-sync:wpt_update_08-03-2019, r=jdm

Sync WPT with upstream (08-03-2019)

Automated downstream sync of changes from upstream as of 08-03-2019.
[no-wpt-sync]

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tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini

@@ -14,6 +14,9 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
 
 [url-with-fetch.any.html]
   [Untitled]
@@ -34,3 +37,6 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+