Aliaksandr Kalenik 5854bf10e6 LibWeb: Give the rendering thread its own Skia backend context ...

Sharing a single SkiaBackendContext between the main thread and the
rendering thread forces locking around every GPU operation. Now that
ImmutableBitmaps are context-neutral, the SkImage cache is per-painter,
and PaintingSurface accepts an explicit context, have the rendering
thread create its own GPU context on startup and use it for the
display-list player and backing store allocation.

This sets up the next commit to remove the cross-thread locking
machinery entirely.

2026-05-04 20:12:21 +02:00

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