Merge "Add definition of an event send from a nano app to host." into nyc-dev
am: 129b414d7a

* commit '129b414d7a587f9c1319694244708edb64700ec3':
  Add definition of an event send from a nano app to host.

Change-Id: Ibf932c447429140b220abf130e138de5e428dfa9