[automerger] Optimise the hit test algorithm am: 3b6f84b77c am: 5b224ccf41 skipped: eb86ac42e6 am: a60d0b2e93 am: a16b03c540 am: acb5b014af am: c62d510887

Change-Id: I0e91789c55c400c15315c51e0f99f3a44ed2d913