Move dromaeo to third_party

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

-class Result {
-  int get runs() { return _sorted.length; }
-
-  double get sum() {
-    double result = 0.0;
-    _sorted.forEach((double e) { result += e; });
-    return result;
-  }
-
-  double get min() { return _sorted[0]; }
-  double get max() { return _sorted[runs - 1]; }
-
-  double get mean() { return sum / runs; }
-
-  double get median() {
-    return (runs % 2 == 0) ?
-        (_sorted[runs ~/ 2] + _sorted[runs ~/ 2 + 1]) / 2 : _sorted[runs ~/ 2];
-  }
-
-  double get variance() {
-    double m = mean;
-    double result = 0.0;
-    _sorted.forEach((double e) { result += Math.pow(e - m, 2.0); });
-    return result / (runs - 1);
-  }
-
-  double get deviation() { return Math.sqrt(variance); }
-
-  // Compute Standard Errors Mean
-  double get sem() { return (deviation / Math.sqrt(runs)) * T_DISTRIBUTION; }
-
-  double get error() { return (sem / mean) * 100; }
-
-  // TODO: Implement writeOn.
-  String toString() {
-    return '[Result: mean = ${mean}]';
-  }
-
-  factory Result(List<double> runsPerSecond) {
-    runsPerSecond.sort(int _(double a, double b) => a.compareTo(b));
-    return new Result._internal(runsPerSecond);
-  }
-
-  Result._internal(this._sorted) {}
-
-  List<double> _sorted;
-
-  // Populated from: http://www.medcalc.be/manual/t-distribution.php
-  // 95% confidence for N - 1 = 4
-  static final double T_DISTRIBUTION = 2.776;
-}