21259 Do not pass invalid platform view rendering surfaces to the rasterizer (cla: yes, waiting for tree to go green)

21260 Roll Skia from c21dc07a78b9 to 31634288fdf3 (5 revisions) (cla: yes, waiting for tree to go green)

21261 Roll Dart SDK from 2cec6af2652f to 6f333dbd6a2b (1 revision) (cla: yes, waiting for tree to go green)

21262 Roll Fuchsia Mac SDK from 2nHpC_AEO… to i2PBGu2n-… (cla: yes, waiting for tree to go green)

21265 Roll Fuchsia Linux SDK from Qi0ptKLxN… to K2Oiy-AYh… (cla: yes, waiting for tree to go green)