Jackson Gardner 45d8f6a4ed Reland (x2) Skwasm overlay optimizations (flutter/engine#56067)
This is an attempt to reland https://github.com/flutter/engine/pull/55468

We now defer actually drawing the pictures until the build of the layer slices, so that we can calculate an accurate `cullRect` for the picture recorder

This also contains a further optimization for the "simple" rendering case (no platform views) where we don't actually do any unnecessary occlusion calculations.
2024-10-25 22:03:56 +00:00
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