The Tor Browser / file revision

 /* This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 function run_test() {

   // If we can't get the profiler component then assume gecko was

   // built without it and pass all the tests

   var profilerCc = Cc["@mozilla.org/tools/profiler;1"];

   if (!profilerCc)

     return;

   var profiler = Cc["@mozilla.org/tools/profiler;1"].getService(Ci.nsIProfiler);

   if (!profiler)

     return;

   do_check_true(!profiler.IsActive());

   profiler.StartProfiler(10, 100, [], 0);

   do_check_true(profiler.IsActive());

   profiler.StopProfiler();

   do_check_true(!profiler.IsActive());

 }