am b2520c7f: manual merge from froyo

Merge commit 'b2520c7f1348cfcb3fa9c2e039140c1addb7688a' into kraken

* commit 'b2520c7f1348cfcb3fa9c2e039140c1addb7688a':
  DO NOT MERGE: Rewrite the HTTP connection pool used by HttpURLConnection.