27295 Fix the firebase scenario app run and assert that it does good things (platform-android, cla: yes, waiting for tree to go green, needs tests)

27332 Make FlutterFragment usable without requiring it to be attached to an Android Activity. (platform-android, cla: yes, waiting for tree to go green, needs tests)

27345 Build the robolectric tests by default for debug armv7 (platform-android, cla: yes)

27382 Revert “Make FlutterFragment usable without requiring it to be attached to an Android Activity.” (platform-android, cla: yes)

27397 Make FlutterFragment usable without requiring it to be attached to an Android Activity. (Attempt 2) (platform-android, cla: yes, waiting for tree to go green)

27604 Fix android zip bundles (platform-android, cla: yes, waiting for tree to go green)