45733 Make all of the driver interface public. (a: tests, cla: yes, framework, tool)

45739 [flutter_tool] restructure ProjectFileInvalidator to no longer directly depend on context (cla: yes, tool)

45740 Do not delete output directory during flutter build ios-framework (a: existing-apps, cla: yes, tool)

45741 Roll engine 35937eb31240..4bdd15cd5438 (5 commits) (autoroller: commit, cla: yes)

45743 Android log reader reads any recent logs (cla: yes, tool)

45746 Roll engine 4bdd15cd5438..6c605f8a9624 (3 commits) (autoroller: commit, cla: yes, waiting for tree to go green)