Merge "AAPT2: Add diff command" into nyc-mr1-dev am: 1a1461058e
am: 894f96a117

* commit '894f96a117a9ba942b9486317f6852c7472443a6':
  AAPT2: Add diff command

Change-Id: Ic53915ac3c04d151f55c159a170d46da7a1f6c17