Merge "Hide UiAutomation#destroy as test api." into nyc-dev
am: 89d3ba72b7

* commit '89d3ba72b7f3318d8911b136af306375051c828a':
  Hide UiAutomation#destroy as test api.

Change-Id: I91cbc4571a110be81f1c25fc0f19fed81d3b2819