[automerger skipped] Merge "Add "Available since" text to all android/ headers." am: 79ad55323e am: bce4d907a2
am: a44450db97 -s ours
am skip reason: change_id I1d9ec8350df03df7d80f1cc2334eef45deec30ec with SHA1 3d70e532fa is in history

Change-Id: I3e56d2537b0d84f169739ccc5724f5406f32f5aa