29320 Inform the Dart VM when snapshots are safe to use with madvise(DONTNEED). (platform-ios, platform-android, cla: yes, platform-macos, platform-linux, platform-fuchsia)

platform-macos - 10 pull request(s)

28136 macOS: Do not swap surface if nothing was painted (cla: yes, waiting for tree to go green, platform-macos, needs tests)

28341 Macos external texture metal support yuv (cla: yes, waiting for tree to go green, platform-macos)

28407 fuchsia: Fix MissingPluginException being thrown in Dart from platform_view.cc (platform-ios, platform-android, cla: yes, platform-web, platform-macos, platform-linux, platform-windows, platform-fuchsia, needs tests, embedder)