am 551a96fb: am 0c0d3893: am 173de779: am b2520c7f: manual merge from froyo

Merge commit '551a96fbb09043734fe3622cdc49dc161486d79b' into dalvik-dev

* commit '551a96fbb09043734fe3622cdc49dc161486d79b':
  DO NOT MERGE: Rewrite the HTTP connection pool used by HttpURLConnection.