am b13998f2: am d00b4386: Merge "Clarify some comments on individual key codes." into gingerbread

Merge commit 'b13998f2b482ff0ebe96cd683801758a01d10799'

* commit 'b13998f2b482ff0ebe96cd683801758a01d10799':
  Clarify some comments on individual key codes.