[TextureMapper] Refactor TextureMapperPlatformLayerProxy into specializable implementations
Created attachment 452514 [details] Patch
Comment on attachment 452514 [details] Patch LGTM!
Committed r290150 (247489@main): <https://commits.webkit.org/247489@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 452514 [details].
<rdar://problem/89159803>