Add App Usage atom to atoms.proto

Test: m -j
Bug: 156041159
Change-Id: Ie0fd99df5b1d8776b6e3c29f7fb2da4759bb465d
Merged-In: Ie0fd99df5b1d8776b6e3c29f7fb2da4759bb465d
(cherry picked from commit ee7dd8f2b2be74196a616efdb9a6f8be30c7df3e)
1 file changed
tree: 408f94e4c49c41fe72c8177b755597aac7c401f6
  1. stats/