* Revert "Accumulate a batch of Skia objects that will be destructed later on the IO thread (#3888)"
This reverts commit dd2fb3c04bb090915b698266ace8680d2747c9db.
* Revert "Revert "Switch to new encode API on SkPixelSerializer (#3892)" (#3894)"
This reverts commit bd2294381078dddb12cd95a6b0bd681c6c5de54a.
* Update Skia revision to pull in GL native interface construction fixes on iOS.
Fixed in https://skia-review.googlesource.com/c/5212/
* Use the new image encoder API from Skia.
We push a bit up the tree during preroll to learn whether there system
composited layers below each layer. During update scene, we squash down
to paint tasks, which we execute after publishing the new scene.
* Namespaces have been updated to reflect the move from //flutter/sky/shell to //flutter/shell.
* shell/BUILD.gn file has been split into smaller GN files for each subcomponent of the shell (common, GPU, diagnostic, testing).
* GN dependencies have been rewritten to stop exposing common shell dependencies as public. Duplicates have also been removed.
* GPU subcomponent has been updated make it more suitable for Vulkan integration.
* The GLFW backend has been resurrected.
