[automerger skipped] Merge "Add a struct wrapper for bytes fields in stats_log cpp APIs." am: 213e8cf8af am: 5f702170e5
am: fd4b985a0c -s ours
am skip reason: change_id Ied0f0bd81cef8d0964f571e921f47022301157d9 with SHA1 e89572cb94 is in history

Change-Id: I724fdfff390b978f5bab189f39123827af5f0520