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sousa-gecko/testing/web-platform/tests/css/css-grid/grid-lanes
Alison Maher 0df0cb7dd1 Bug 2054129 [wpt PR 61207] - [grid][Masonry] Fix crash for standalone subgrid with auto-repeat, a=testonly
Automatic update from web-platform-tests
[grid][Masonry] Fix crash for standalone subgrid with auto-repeat

A subgrid axis on a grid/grid-lanes with no parent has a used value of
`none` (https://drafts.csswg.org/css-grid-2/#subgrid-listing). Its
trailing auto-fill line-name repeater can resolve to 0 repetitions,
which tripped DCHECK in `FinalizeRanges`.

Treat a standalone subgridded axis as contributing no explicit repeaters
so that we don't consider these repeaters in later stages, thus fixing
the crash for both grid and grid lanes.

Bug: 343257585
Change-Id: Ic5570272f7d39ca5e5975818e1808d4bf6ad15ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/8072738
Reviewed-by: Ian Kilpatrick <ikilpatrick@chromium.org>
Commit-Queue: Alison Maher <almaher@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#1660047}

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wpt-commits: 7cbfe0be66b3b2c228cf5da70ed3cbeb30b214b3
wpt-pr: 61207
2026-07-13 14:37:28 +00:00
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