18097 Present Metal drawable with a transaction only when on the Main thread. (cla: yes)

18098 Roll fuchsia/sdk/core/linux-amd64 from cIjMH… to Rp56G… (cla: yes, waiting for tree to go green)

18099 Roll src/third_party/skia 64964bb1150e..80cab814091d (1 commits) (cla: yes, waiting for tree to go green)

18100 Roll src/third_party/dart eca696c0268f..be1f85847fd5 (3 commits) (cla: yes, waiting for tree to go green)

18101 Roll fuchsia/sdk/core/mac-amd64 from ByAMa… to -_piy… (cla: yes, waiting for tree to go green)