git-svn-id: svn://10.0.0.236/trunk@111347 18797224-902f-48f8-a5cc-f745e15eee43
allocations done by zlib by recycling previously allocated memory. r=darin sr=dveditz git-svn-id: svn://10.0.0.236/trunk@110529 18797224-902f-48f8-a5cc-f745e15eee43