Bug 1767253 [wpt PR 33894] - Set fragment index to 0 when hit-testing in non-fragmented container., a=testonly

Automatic update from web-platform-tests Set fragment index to 0 when hit-testing in non-fragmented container. Set the fragment index to 0, instead of leaving it at WTF::kNotFound, when AppendSingleFragmentForHitTesting() has no container_fragment specified. container_fragment is nullptr as an optimization, when the container only has one fragment. See near the end of HitTestLayerByApplyingTransform(). Bug: 1321302 Change-Id: Ibf6bfce2308229030304d99588defd9494ec0298 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3620315 Commit-Queue: Morten Stenshorne <mstensho@chromium.org> Reviewed-by: Philip Rogers <pdr@chromium.org> Cr-Commit-Position: refs/heads/main@{#1000919} -- wpt-commits: d18cf39d92d0116ae11a6aa034d9fe2f753ce304 wpt-pr: 33894
2022-05-16 10:05:41 +00:00 · 2022-05-16 10:05:41 +00:00 · 3d470ab9f0
--- a/testing/web-platform/tests/css/css-transforms/inline-with-filter-and-hidden-backface.html
+++ b/testing/web-platform/tests/css/css-transforms/inline-with-filter-and-hidden-backface.html
@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1321302">
+<span id="elm" style="filter:blur(1px); backface-visibility:hidden;">x</span>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  test(()=> {
+    assert_equals(elm, document.elementFromPoint(10, 10));
+  }, "Hit test");
+</script>