29402 WeakPtrFactory should be destroyed before any other members. (platform-ios, cla: yes, waiting for tree to go green, platform-fuchsia, needs tests)

29448 [Web] Fix BMP encoder (cla: yes, platform-web, needs tests)

29482 Fix partial repaint when TextureLayer is inside retained layer (cla: yes, needs tests)

29502 [macOS] Fixes Crash of cxx destruction when App will terminate (cla: yes, waiting for tree to go green, platform-macos, needs tests)

29509 [fuchsia] Remove mentions of fuchsia.deprecatedtimezone. (cla: yes, platform-fuchsia, needs tests)

29511 Provide a default handler for the flutter/navigation channel (platform-android, cla: yes, waiting for tree to go green, needs tests)