am 8408cbe3: cherrypick from lmp-docs docs: Added 3rd-party Javadocs for Android Support Testing Library v0.2. Original Change-Id: I0fab71be55f5c3c6d017ba585b92f8493050274a bug: 20304402

* commit '8408cbe3adc8b0df4ae279a2e8689d1066972744':
  cherrypick from lmp-docs docs: Added 3rd-party Javadocs for Android Support Testing Library v0.2. Original Change-Id: I0fab71be55f5c3c6d017ba585b92f8493050274a bug: 20304402