Andreas Kling b102a68746 LibWeb: Precompute contained boxes map for measure_scrollable_overflow ...

Build a HashMap from each containing block to the boxes it contains
before measuring scrollable overflow. This allows
measure_scrollable_overflow() to iterate only the relevant boxes
directly, rather than walking the entire layout subtree and filtering
by containing_block() at each node.

2026-03-21 18:20:09 -05:00

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