28351 Roll Skia from 7bd3f1cc7822 to b42c3834afed (1 revision) (cla: yes, waiting for tree to go green)

28352 Fix function definitions in SPIR-V transpiler. (cla: yes)

28354 Roll Skia from b42c3834afed to 494eb3e877e6 (1 revision) (cla: yes, waiting for tree to go green)

28355 fuchsia: Fix renderer destructor (cla: yes, platform-fuchsia, needs tests)

28356 Correct outdated weak_ptr docs (cla: yes, waiting for tree to go green)

28357 [web] Support raw straight RGBA format in Image.toByteData() in Html (cla: yes, waiting for tree to go green, platform-web)