Like "automatic" measure page load time?

Question

Browsers

There is a nice plugin stevesouders.com/hammerhead/ for Firefox 3.6. The main feature is that it automatically opens the same page sequentially, with and without a cache, and calculates the average load time.
I would like an analogue for modern browsers. And it would be great to be able to track the full load, with all resources, and the (DOMContentLoaded) event.
Speed ​​Tracer is good at measuring various aspects of loading, but this functionality is not included in it.

Answer 1

Firebug, will not work?
getfirebug.com

Answer 2

Navigation Timing API
www.html5rocks.com/en/tutorials/webperformance/basics/developer.mozilla.org/en/Navigation_timing

Answer 3

ApacheBench