Aliaksandr Kalenik 6507d23e29 LibWeb: Save ScrollState snapshot in DisplayList to avoid race condition ...

With this change we save a copy of of scroll state at the time of
recording a display list, instead of actual ScrollState pointer that
could be modifed by the main thread while display list is beings
rasterized on the rendering thread, which leads to a frame painted with
inconsistent scroll state.

Fixes https://github.com/LadybirdBrowser/ladybird/issues/4288

2025-04-12 02:55:18 +02:00

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