Martin Robinson 3e1cdacd07 script|layout: Do not force restyle when doing script queries (#37677) ...

Instead of doing a restyle whenever layout is requested, only do one if
script believes that the `Document` has changed in a way that needs a
restyle. In addition, track the different reasons this might be the
case. This will be used later to provide better debugging output.

In layout, when a restyle isn't requested, provide:
 - an early return if layout is up-to-date enough for the reflow goal.
 - skipping restyle and reflow if it isn't necessary.

Testing: This should not change observable behavior, and thus is covered
by existing tests.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>
Co-authored-by: Oriol Brufau <obrufau@igalia.com>

2025-06-26 08:02:15 +00:00

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