am 275acdff: Copy Froyo\'s version of MulticastSocketTest to Eclair for CTS.

Merge commit '275acdff64a58f407cec552e7027cb07414b48ef' into eclair-plus-aosp

* commit '275acdff64a58f407cec552e7027cb07414b48ef':
  Copy Froyo's version of MulticastSocketTest to Eclair for CTS.