am f99e27da: Merge "Make android:immersive public." into gingerbread

Merge commit 'f99e27da0b2e8d9f6be205b20191581c7951dfbc' into gingerbread-plus-aosp

* commit 'f99e27da0b2e8d9f6be205b20191581c7951dfbc':
  Make android:immersive public.