Bug 1928139 [wpt PR 48887] - Disable selectedoption inside option, a=…

…testonly

Automatic update from web-platform-tests
Disable selectedoption inside option

This patch prevents an infinite loop due to putting a selectedoption
inside of an option element. This case was pointed out here:
openui/open-ui#1120

Change-Id: I794e49b5c5d28773ce4684fc3a829365667fe138
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5975638
Commit-Queue: Joey Arhar <jarharchromium.org>
Reviewed-by: Traian Captan <tcaptanchromium.org>
Cr-Commit-Position: refs/heads/main{#1375889}

--

wpt-commits: 77665be0abf23117db6596f618be29dc416fdd13
wpt-pr: 48887

UltraBlame original commit: 17d95f3373bf1c72fe9c5b5c337c4534f0e6f421

testing/web-platform/tests/html/semantics/forms/the-select-element/customizable-select/selectedoption-in-option-crash.html

@@ -0,0 +1,114 @@
+<
+!
+DOCTYPE
+html
+>
+<
+link
+rel
+=
+author
+href
+=
+"
+mailto
+:
+jarhar
+chromium
+.
+org
+"
+>
+<
+link
+rel
+=
+help
+href
+=
+"
+https
+:
+/
+/
+github
+.
+com
+/
+openui
+/
+open
+-
+ui
+/
+issues
+/
+1120
+"
+>
+<
+style
+>
+select
+:
+:
+picker
+(
+select
+)
+{
+appearance
+:
+base
+-
+select
+;
+}
+<
+/
+style
+>
+<
+select
+>
+<
+button
+>
+<
+selectedoption
+>
+<
+/
+selectedoption
+>
+<
+/
+button
+>
+<
+option
+>
+one
+<
+selectedoption
+>
+<
+/
+selectedoption
+>
+<
+/
+option
+>
+<
+option
+>
+two
+<
+/
+option
+>
+<
+/
+select
+>