Martin Robinson 54761b4f32 script: Update animations once per-Document during update_the_rendering() (#34489) ...

Before, `update_the_rendering()` would update all animations for all
Documents once per-Document. Apart from being generally wrong, the
specification says this should be done once per-Document. This
theoretically means that `update_the_rendering()` is just doing less
work every time it runs.

In addition:
 - Don't redirty animations nodes when running rAF callbacks. They
   should already be dirty when animations are updated.
 - Perform a microtask checkpoint while updating animations as dictacted
   by the specification.
 - Update comments to reflect the specification text.

Signed-off-by: Martin Robinson <mrobinson@igalia.com>

2024-12-05 16:37:59 +00:00

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