chore(packaging): update import for the new file structure

modules/angular2/e2e_test/perf_util.es6

@@ -0,0 +1,65 @@
+var benchpress = require('../../../tools/benchpress/index.js');
+var webdriver = require('protractor/node_modules/selenium-webdriver');
+
+module.exports = {
+  runClickBenchmark: runClickBenchmark,
+  runBenchmark: runBenchmark,
+  verifyNoBrowserErrors: benchpress.verifyNoBrowserErrors
+};
+
+function runClickBenchmark(config) {
+  var buttons = config.buttons.map(function(selector) {
+    return $(selector);
+  });
+  config.work = function() {
+    buttons.forEach(function(button) {
+      button.click();
+    });
+  }
+  runBenchmark(config);
+}
+
+function runBenchmark(config) {
+  var globalParams = browser.params;
+  getScaleFactor(globalParams.benchmark.scaling).then(function(scaleFactor) {
+    var params = config.params.map(function(param) {
+      return {
+        name: param.name, value: applyScaleFactor(param.value, scaleFactor, param.scale)
+      }
+    });
+    var benchmarkConfig = Object.create(globalParams.benchmark);
+    benchmarkConfig.id = globalParams.lang+'.'+config.id;
+    benchmarkConfig.params = params;
+    benchmarkConfig.scaleFactor = scaleFactor;
+
+    var url = encodeURI(config.url + '?' + params.map(function(param) {
+      return param.name + '=' + param.value;
+    }).join('&'));
+    browser.get(url);
+    benchpress.runBenchmark(benchmarkConfig, config.work);
+  });
+}
+
+function getScaleFactor(possibleScalings) {
+  return browser.executeScript('return navigator.userAgent').then(function(userAgent) {
+    var scaleFactor = 1;
+    possibleScalings.forEach(function(entry) {
+      if (userAgent.match(entry.userAgent)) {
+        scaleFactor = entry.value;
+      }
+    });
+    return scaleFactor;
+  });
+}
+
+function applyScaleFactor(value, scaleFactor, method) {
+  if (method === 'log2') {
+    return value + Math.log2(scaleFactor);
+  } else if (method === 'sqrt') {
+    return value * Math.sqrt(scaleFactor);
+  } else if (method === 'linear') {
+    return value * scaleFactor;
+  } else {
+    return value;
+  }
+}