25860 Moved PlatformMessage’s to unique_ptrs (platform-ios, platform-android, cla: yes, waiting for tree to go green, platform-fuchsia, embedder)

25867 Switch PlatformMessages to hold data in Mappings (platform-ios, platform-android, cla: yes, platform-macos, platform-fuchsia, embedder)

25883 Update key mapping to the latest logical key values (affects: text input, cla: yes, platform-web, platform-macos, platform-linux, platform-windows, embedder)

25901 Don’t call release_proc when attempting to wrap an SkSurface which fails (cla: yes, embedder)

25932 Add missing semantics flag for embedder (cla: yes, embedder)

25961 Hardware Keyboard: iOS (platform-ios, cla: yes, platform-macos, embedder)