How to access chrome profiling programmatically

Looking for some chrome API (to be used in chrome extension) that let me to do following programmatically:- - start profiling - end profiling - get list of time taken by all JS on the page

I can achieve the same in Firefox as:

jsd = DebuggerService.getService(jsdIDebuggerService)
// start the profiling as
jsd.flags |= COLLECT_PROFILE_DATA;

// stop the profilinf as
jsd.flags &= ~COLLECT_PROFILE_DATA;

// get the details of how much time each JS function took
jsd.enumerateScripts({enumerateScript: function(script)
{
// script object has timings detail
}

Even some API that can let me to export the profiling info from developer tool bar will be helpful