Bug 1457139 [wpt PR 10657] - Align Request.destination to spec, a=testonly

Automatic update from web-platform-testsAlign Request.destination to spec

Currently `Request.destination` is set to "unknown" prefetch,
but that was recently changed:
Issue: whatwg/fetch#658
PR: whatwg/fetch#659

This CL aligns the destination values to the spec change.

Bug: 832105
Change-Id: Ib9f21dcc6cf0ace27b7a810d3670cddc45b3b74f
Reviewed-on: https://chromium-review.googlesource.com/1029858
Commit-Queue: Yoav Weiss <yoavyoav.ws>
Reviewed-by: Charlie Harrison <csharrisonchromium.org>
Reviewed-by: Yutaka Hirano <yhiranochromium.org>
Cr-Commit-Position: refs/heads/master{#554341}

--

wpt-commits: 3c940291e9e8c30e8c7c401426160e3531639403
wpt-pr: 10657

UltraBlame original commit: b60142c1cc9a01efbb27b591c1828015ffa0a6cb

Author: marco-c

testing/web-platform/meta/MANIFEST.json

@@ -3713759,7 +3713759,7 @@ html
 :
 [
 "
-5b7276e8a10bf91ee7d2a92917176b8e62c3255d
+29e22bbe11b501fa354e90dde671f5f500fcaab3
 "
 "
 testharness

testing/web-platform/tests/fetch/api/request/destination/fetch-destination.https.html

@@ -3991,6 +3991,135 @@
 '
 )
 ;
+/
+/
+HTMLLinkElement
+with
+rel
+=
+prefetch
+-
+empty
+string
+destination
+promise_test
+(
+async
+t
+=
+>
+{
+await
+new
+Promise
+(
+(
+resolve
+reject
+)
+=
+>
+{
+let
+node
+=
+frame
+.
+contentWindow
+.
+document
+.
+createElement
+(
+"
+link
+"
+)
+;
+node
+.
+rel
+=
+"
+prefetch
+"
+;
+node
+.
+onload
+=
+resolve
+;
+node
+.
+onerror
+=
+reject
+;
+node
+.
+href
+=
+"
+dummy
+?
+dest
+=
+"
+;
+frame
+.
+contentWindow
+.
+document
+.
+body
+.
+appendChild
+(
+node
+)
+;
+}
+)
+.
+catch
+(
+(
+)
+=
+>
+{
+assert_unreached
+(
+"
+Fetch
+errored
+.
+"
+)
+;
+}
+)
+;
+}
+'
+HTMLLinkElement
+with
+rel
+=
+prefetch
+fetches
+with
+an
+empty
+string
+Request
+.
+destination
+'
+)
+;
 <
 /
 script