Automatic update from web-platform-tests
compositing: Send entire scene's scroll offsets when sending WebRender display lists
WebRender does not preserve spatial tree offsets when updating the
spatial tree. Updating the spatial tree of a pipeline can also
update the spatial tree of child pipelines. This change ensures that
WebRender always gets the scroll offsets of the entire scene when
modifying display lists in a way that may rebuild the spatial tree.
Fixes#31807.
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wpt-commits: ac5cb53177ed51d2fe0755c84cfe38283b67b0b9
wpt-pr: 45425
