am 16848a15: am f6354aca: Merge "CallManager: do not deliver ring event if fg call is live." into gingerbread

Merge commit '16848a15bbb7648bb1298c91f7969073c106115c'

* commit '16848a15bbb7648bb1298c91f7969073c106115c':
  CallManager: do not deliver ring event if fg call is live.