[automerger skipped] Merge "Add metrics constant for platform compat UI."
am: 48bb84c619 -s ours
am skip reason: change_id I1a1a708596ad003a7c95906fe9514db6ec518dfc with SHA1 e9e83a5554 is in history

Change-Id: I3e8019aadb2d50eca520643d541926b35d26d231