am a2657b83: am 84a60712: add meta-files about 3rd party projects

Merge commit 'a2657b83ede5870c52c9a3bfa3ab6f339c5643f1'

* commit 'a2657b83ede5870c52c9a3bfa3ab6f339c5643f1':
  add meta-files about 3rd party projects