[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}
Lightning00Blade · Dec 11, 2023 · 757ce69 · 757ce69
1 parent 5c1775a
commit 757ce69
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/accessibility/crashtests/null-node.html b/accessibility/crashtests/null-node.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<style>
+::-webkit-scrollbar-track, ::-webkit-scrollbar {
+  color: red;
+}
+::-webkit-scrollbar-track:horizontal:disabled {
+  content-visibility: hidden;
+}
+</style>
+<main style="height: 100px; width: 100px; overflow: scroll;"></main>