Andreas Kling 3a2de5374c LibWeb: Don't require layout to determine clientLeft and clientTop ...

These properties only return the computed border width, which is a
style-level value that doesn't depend on layout geometry. Replace
the full update_layout() call with update_style_if_needed_for_element()
and resolve border widths directly from computed properties.

This avoids potentially expensive synchronous layout when only
CSS computed values are needed.

Very profitable on https://x.com/ where we avoid lots of layout work.

2026-02-22 13:24:05 +01:00

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