am f7db3e21: am 8e7515d9: Merge "get rid of our LayerVector implementation" into gingerbread

Merge commit 'f7db3e21ef713d4ff743f2a52837ea3d210bb84f'

* commit 'f7db3e21ef713d4ff743f2a52837ea3d210bb84f':
  get rid of our LayerVector implementation