30324 [web] make new image decoder opt-in via experimental flag (platform-web, needs tests)

30382 Add missing return to nullably-typed functions (platform-web, needs tests)

platform-fuchsia - 27 pull request(s)

28801 Enable partial repaint for iOS/Metal (platform-ios, platform-android, cla: yes, platform-fuchsia, embedder)

29397 [fuchsia] Add more logging for error cases. (cla: yes, waiting for tree to go green, platform-fuchsia, needs tests)

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