tree 5ec9c53ceea51438ed7f82a1d441fe3678b0bc98
parent 62a24b09c16cc81ec6d3c80ae9c738035c50f749
author Aaron Leventhal <aleventhal@google.com> 1694628587 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1694629646 -0700

[A11y] Address possibility of nodeless object with content-visibility rule

Note that the new test does not exercise all of the added code, because
an AXObject never existed for the nodeless layout object in the
scrollbar. However, rather than hitting a CHECK(), the code will now
continue and ensure that if there is a subtree of AXObjects based
only on layout objects, that they are removed in this case.

Fixed: 1481892
Change-Id: Iebacc810852c0a34e6f743a821957360bcfd69d4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4860045
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Commit-Queue: Aaron Leventhal <aleventhal@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1196125}