Bug 1554304 [wpt PR 17006] - CORB should block event-stream, gzip and…

… x-www-form-urlencoded., a=testonly

Automatic update from web-platform-tests
CORB should block event-stream, gzip and x-www-form-urlencoded.

This CL adds CORB coverage for:

1) text/event-stream, application/x-www-form-urlencoded, based on the
code review discussion in a previous CL here:
https://chromium-review.googlesource.com/c/chromium/src/+/1604244/4/services/network/cross_origin_read_blocking.cc#227

2) application/gzip, which wasn't mentioned explicitly in the CR
discussion above, but which is ranked #212 in the spreadsheet
mentioned in whatwg/fetch#860 (comment)
and therefore probably should have been included in r659671 together
with x-gzip (ranked #54) and zip (ranked #71).

Bug: 802836
Change-Id: I8c10f900110a2cb471437a19425bfd5e38aed2fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628809
Reviewed-by: Charlie Reis <creischromium.org>
Commit-Queue: Łukasz Anforowicz <lukaszachromium.org>
Cr-Commit-Position: refs/heads/master{#663824}

--

wp5At-commits: 4308b47e147274f6702a0c1add77488fbc75a309
wpt-pr: 17006

UltraBlame original commit: 2c70fb58e7267888692dce4121614c1240f470d4

testing/web-platform/tests/fetch/corb/script-resource-with-nonsniffable-types.tentative.sub.html

@@ -459,6 +459,11 @@
 "
 application
 /
+gzip
+"
+"
+application
+/
 x
 -
 gzip
@@ -473,8 +478,26 @@
 "
 application
 /
+x
+-
+www
+-
+form
+-
+urlencoded
+"
+"
+application
+/
 zip
 "
+"
+text
+/
+event
+-
+stream
+"
 /
 /
 TODO