* commit '44895333dad66be0ab5350b039d828f3da2a1b73': clarify that ANDROID_ID is unique for each user in multi-user environment. bug: 8073630
* commit '44895333dad66be0ab5350b039d828f3da2a1b73': clarify that ANDROID_ID is unique for each user in multi-user environment. bug: 8073630