Add correct timing collection for new browser controller

tools/testing/dart/test_runner.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /**
  * Classes and methods for executing tests.
  *
  * This module includes:
  * - Managing parallel execution of tests, including timeout checks.
  * - Evaluating the output of each test as pass/fail/crash/timeout.
@@ skipping 1649 matching lines @@
           return testRunner;
         }
         print("Issue starting browser test runner");
         io.exit(1);
       });
     }
     return new Future.immediate(_browserTestRunners[runtime]);
   }
 
   void _startBrowserControllerTest(var test) {
-    var callback = (var output) {
+    var callback = (var output, var duration) {
       var nextCommandIndex = test.commandOutputs.keys.length;
       new CommandOutput.fromCase(test,
                                  test.commands[nextCommandIndex],
                                  0,
                                  false,
                                  output == "TIMEOUT",
                                  encodeUtf8(output),
                                  [],
-                                 const Duration(seconds: 1),
+                                 duration,
                                  false);
       test.completedHandler(test);
     };
     BrowserTest browserTest = new BrowserTest(test.testingUrl,
                                               callback,
                                               test.timeout);
     _getBrowserTestRunner(test).then((testRunner) {
       testRunner.queueTest(browserTest);
     });
   }
@@ skipping 220 matching lines @@
     }
   }
 
   void eventAllTestsDone() {
     for (var listener in _eventListener) {
       listener.allDone();
     }
   }
 }