Import wpt@efa5cebbd4a2b5df055a12212c534b13052154b8

Using wpt-import in Chromium 8107c6a8.
With Chromium commits locally applied on WPT:
b691cab2 "Implement script and style attr/elem CSP directives"
bde179ef "Revert "Implement script and style attr/elem CSP directives""
77fb9999 "Reland "Implement script and style attr/elem CSP directives""
51b234e2 "Set longer timeout to all tests in wpt/editing/run/"


Build: https://ci.chromium.org/buildbot/chromium.infra.cron/wpt-importer/24098

Note to sheriffs: This CL imports external tests and adds
expectations for those tests; if this CL is large and causes
a few new failures, please fix the failures by adding new
lines to TestExpectations rather than reverting. See:
https://chromium.googlesource.com/chromium/src/+/master/docs/testing/web_platform_tests.md

NOAUTOREVERT=true
TBR=kyleju

No-Export: true
Change-Id: I2c8d5d0e178e2559cb756b1e0cfeb5b18a882ba4
Reviewed-on: https://chromium-review.googlesource.com/1205605
Commit-Queue: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Reviewed-by: Blink WPT Bot <blink-w3c-test-autoroller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#588823}

third_party/WebKit/LayoutTests/external/wpt/cors/simple-requests.htm

@@ -83,9 +83,9 @@ simple_async.step(function (){
                         + uuid_token, true)
 
     client.setRequestHeader('Accept', 'jewelry')
-    client.setRequestHeader('accept-language', 'nn_NO,nn,en')
+    client.setRequestHeader('accept-language', 'nn-NO,nn,en')
     client.setRequestHeader('content-type', 'text/plain; parameter=extra')
-    client.setRequestHeader('content-Language', 'nn_NO')
+    client.setRequestHeader('content-Language', 'nn-NO')
 
     client.onload = simple_async.step_func(function() {
         assert_equals(client.getResponseHeader('content-type'), "text/plain", 'content-type response header')