Merge "Define equals and hashCode for InputDeviceIdentifier." into nyc-dev
am: c81b726

* commit 'c81b726ed1faf195d81d64a1af2e747d58a453df':
  Define equals and hashCode for InputDeviceIdentifier.

Change-Id: Ia99bd3ac27e0418c7534f8bf6a0a122da0a5eaf5