Mark ab/6881855 as merged

Bug: 172690556
Change-Id: Ie3693e3d815995ab72063ebc1dff471a8a740186
tree: 26f5d0711fd2be1f4b82abe0298f056ddc8cd4d5
  1. build/
  2. os/
  3. OWNERS
  4. TEST_MAPPING