am 67ac7f20: am 15ba53de: am 019d10de: am d201e0ee: Merge "Modify UiAutomator cts tests and app to improve scroll check" into jb-mr2-dev

* commit '67ac7f204a45f91541cae0ccfc8b410c7fac1e60':
  Modify UiAutomator cts tests and app to improve scroll check