53258 [flutter_tools] Prepare for OSError to implement Exception (cla: yes, tool, waiting for tree to go green)

53268 [flutter_tools] refactor build_system and targets to be context-free (cla: yes, tool, waiting for tree to go green)

53269 Reland “Replace uses of deprecated CastError with TypeError (#53221)” (cla: yes, framework, tool, waiting for tree to go green)

53273 Expose extra frontend options through build apk/ios/macOS (cla: yes, tool)

53275 Allow user to specify which Chrome binary to use. (cla: yes, tool, waiting for tree to go green)

53279 Renamed test class to avoid conflict with the navigator page api. (cla: yes, team, waiting for tree to go green)