Cosmetic fixes. - Added missing license headers. - Replaced tab by spaces. - Added myself as OWNERS. Test: none Bug: 151345745 Merged-In: I737e494ea40bd00190c1ace059b20130184f69cb Change-Id: I737e494ea40bd00190c1ace059b20130184f69cb (cherry picked from commit 3bec69c0ff492dcb5cc57b622aa4f288d27b6d41)