Make <input> close <option> and <optgroup>

Based on feedback in the <select> parser relaxation HTML spec PR, we
might want to close the <select> on these tags when parsing an <input>:
whatwg/html#10557 (comment)

If the UseCounter shows that usage is low enough, then we could remove
this behavior.

Bug: 402429384
Change-Id: Id8809d40162c7fd06a446e146d65aaf6258d2e5b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6506819
Reviewed-by: Mason Freed <[email protected]>
Commit-Queue: Joey Arhar <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1459707}

Author: josepharhar

html/semantics/forms/the-select-element/customizable-select/select-parsing.tentative.html

@@ -104,6 +104,14 @@
   </div>
 </select>
 
+<select class=test
+        data-description='Input tags should close select when directly inside an <option>'
+        data-expect='<option></option>'>
+  <option>
+    <input>
+  </option>
+</select>
+
 <div id=afterlast>
   keep this div after the last test case
 </div>