gecko-dev/testing/web-platform/tests/css/css-break/remove-inline-child.html
Morten Stenshorne 3b7784d1bd Bug 1633578 [wpt PR 23279] - [FragmentItem] Prevent dangling LayoutObject ptrs in block fragmentation., a=testonly
Automatic update from web-platform-tests
[FragmentItem] Prevent dangling LayoutObject ptrs in block fragmentation.

NGInlineCursor doesn't work with block fragmentation, so we'd end up
with NGFragmentItem objects with dangling pointers to LayoutObject. To
fix this, perform a full walk through all fragment items in all
fragments, if it's likely that we're in block fragmentation.

CL:2152824 caused two tests to crash because of this, and it therefore
got reverted. Add another test now, which would also crash without the
aforementioned CL.

Bug: 1075517
Change-Id: I97e2fae63d89031ea258ba146898e7fcfe56bd45
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2165800
Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: Morten Stenshorne <mstensho@chromium.org>
Cr-Commit-Position: refs/heads/master@{#763233}

--

wpt-commits: e9ed833d0c9483012493d839434137de7e7ba00d
wpt-pr: 23279
2020-04-28 11:48:04 +00:00

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HTML

<!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=1075517">
<div style="columns:2; column-fill:auto; line-height:20px; height:50px;">
<div>
<span id="removeme">
line1<br>
line2<br>
line3<br>
line4<br>
</span>
</div>
</div>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
test(()=> {
document.body.offsetTop;
removeme.style.display = "none";
}, "no crash");
</script>