18947 Roll Skia from 1ce11e676e6d to 437c78593cb5 (5 revisions) (cla: yes, waiting for tree to go green)

18950 fix iOS builds (cla: yes, platform-ios)

18951 Fix right-to-left selection not working. (cla: yes)

18954 Roll Skia from 437c78593cb5 to 5d18c24f7f3a (9 revisions) (cla: yes, waiting for tree to go green)

18956 Roll Fuchsia Linux SDK from Lwsff… to 8AiUM… (cla: yes, waiting for tree to go green)