chrome network debugging

chrome has several debugging tools:

• netlog (chrome://net-internals -> events). see NetLog: Chrome’s network logging system, or the list of netlog events and their meanings
• chrome://net-internals/#chromeos -> controls to enable chromeos network debugging and to package up log files
• chrome://net-internals/#tests -> test loading a particular URL
• network debugger app (in development; contact ebeach@)