Add a CompareOrUpdateResult class. am: 2b70bacd6b am: accd4634e9 am: 903c23695e

Change-Id: Ic8b24b5e73d0f68a1313fe79a1aa546ce5f7adf5
tree: b8a4150ed3e22ef4f13c4aa7bf550598b1756fa7
  1. staticlibs/