27873 Roll Skia from 9cd9d0f3de06 to 1b18454ba700 (1 revision) (cla: yes, waiting for tree to go green)

27875 Roll Skia from 1b18454ba700 to 6ff2b7a4e556 (1 revision) (cla: yes, waiting for tree to go green)

27876 Roll Skia from 6ff2b7a4e556 to 38d9e0e812ca (1 revision) (cla: yes, waiting for tree to go green)

27879 Fix nullability of GestureSettings on ViewConfig (cla: yes, waiting for tree to go green, platform-web)