27506 MacOS: Fix external texture not working in OpenGL mode (cla: yes, waiting for tree to go green, needs tests, embedder)

27507 Roll Fuchsia Linux SDK from ufdC-mDPS… to Y9N1cBuxa… (cla: yes, waiting for tree to go green)

27508 Do not resolve external textures unless there is new frame available (cla: yes, waiting for tree to go green, embedder)

27511 Roll Skia from 7c79a871c084 to 11a20bbbf4d5 (1 revision) (cla: yes, waiting for tree to go green)

27512 Roll Skia from 11a20bbbf4d5 to 01e6273c46f0 (1 revision) (cla: yes, waiting for tree to go green)