Move dromaeo to third_party

client/dom/benchmarks/dromaeo/tests/RunnerSuite.dart

-typedef void Test();
-typedef void Operation();
-typedef void Reporter(Map<String, Result> results);
-
-class Suite {
-  /**
-   * Ctor.
-   *  [:_window:] The window of the suite.
-   *  [:_name:] The name of the suite.
-   */
-  Suite(this._window, this._name) :
-      _operations = new List<Operation>(),
-      _nTests = 0, _nRanTests = 0 {
-    _window.addEventListener(
-        'message',
-        (MessageEvent event) {
-          String command = event.data;
-          switch (command) {
-            case 'start':
-              _run();
-              return;
-
-            default:
-              _window.alert('[${_name}]: unknown command ${command}');
-          }
-        },
-        false
-    );
-  }
-
-  /**
-   * Adds a preparation step to the suite.
-   * [:operation:] The operation to be performed.
-   */
-  Suite prep(Operation operation){
-    return _addOperation(operation);
-  }
-
-  // How many times each individual test should be ran.
-  static final int _N_RUNS = 5;
-
-  /**
-   * Adds another test to the suite.
-   * [:name:] The unique name of the test
-   * [:test:] A function holding the test to run
-   */
-  Suite test(String name, Test test_) {
-    _nTests++;
-    // Don't execute the test immediately.
-    return _addOperation(() {
-      // List of number of runs in seconds.
-      List<double> runsPerSecond = new List<double>();
-
-      // Run the test several times.
-      try {
-        // TODO(antonm): use .setTimeout to schedule next run as JS
-        // version does.  That allows to report the intermidiate results
-        // more smoothly as well.
-        for (int i = 0; i < _N_RUNS; i++) {
-          int runs = 0;
-          final int start = new Date.now().value;
-
-          int cur = new Date.now().value;
-          while ((cur - start) < 1000) {
-            test_();
-            cur = new Date.now().value;
-            runs++;
-          }
-
-          runsPerSecond.add((runs * 1000.0) / (cur - start));
-        }
-      } catch(var exception, var stacktrace) {
-        _window.alert('Exception ${exception}: ${stacktrace}');
-        return;
-      }
-      _reportTestResults(name, new Result(runsPerSecond));
-    });
-  }
-
-  /**
-   * Finalizes the suite.
-   * It might either run the tests immediately or schedule them to be ran later.
-   */
-  void end() {
-    _postMessage('inited', { 'nTests': _nTests });
-
-  }
-
-  _run() {
-    int currentOperation = 0;
-    handler() {
-      if (currentOperation < _operations.length) {
-        _operations[currentOperation]();
-        currentOperation++;
-        _window.setTimeout(handler, 1);
-      } else {
-        _postMessage('over');
-      }
-    }
-    _window.setTimeout(handler, 0);
-  }
-
-  _reportTestResults(String name, Result result) {
-    _nRanTests++;
-    _postMessage('result', {
-        'testName': name,
-        'mean': result.mean,
-        'error': result.error / result.mean,
-        'percent': (100.0 * _nRanTests / _nTests)
-    });
-  }
-
-  _postMessage(String command, [var data = null]) {
-    final payload = { 'command': command };
-    if (data != null) {
-      payload['data'] = data;
-    }
-    // TODO(antonm): Remove dynamic below.
-    _window.top.dynamic.postMessage(JSON.stringify(payload), '*');
-  }
-
-  // Implementation.
-
-  final Window _window;
-  final String _name;
-
-  List<Operation> _operations;
-  int _nTests;
-  int _nRanTests;
-
-  Suite _addOperation(Operation operation) {
-    _operations.add(operation);
-    return this;
-  }
-}