18152 Roll src/third_party/skia 3d311a983bf0..0cbd58766ace (2 commits) (cla: yes, waiting for tree to go green)

18153 [iOS platform view] fix active_composition_order_ never cleared (cla: yes)

18154 gpu_metal_surface submitframe return false when canvas is null (cla: yes)

18155 Roll fuchsia/sdk/core/mac-amd64 from ERGnT… to c5NQZ… (cla: yes, waiting for tree to go green)

18157 Handle leak of message handle when no engine present (cla: yes)

18159 Add first Linux shell tests (cla: yes)

18160 Reland again “Remove layer integral offset snapping #17112” (cla: yes)