Remove tools/playback_benchmark.

tools/playback_benchmark/common.js

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-/**
- * @fileoverview Classes and functions used during recording and playback.
- */
-
-var Benchmark = Benchmark || {};
-
-Benchmark.functionList = [
-  ['setTimeout', 'setTimeout'],
-  ['clearTimeout', 'clearTimeout'],
-  ['setInterval', 'setInterval'],
-  ['clearInterval', 'clearInterval'],
-  ['XMLHttpRequest', 'XMLHttpRequest'],
-  ['addEventListenerToWindow', 'addEventListener'],
-  ['addEventListenerToNode', 'addEventListener', ['Node', 'prototype']],
-  ['removeEventListenerFromNode', 'removeEventListener', ['Node', 'prototype']],
-  ['addEventListenerToXHR', 'addEventListener',
-   ['XMLHttpRequest', 'prototype']],
-  ['random', 'random', ['Math']],
-  ['Date', 'Date'],
-  ['documentWriteln', 'writeln', ['document']],
-  ['documentWrite', 'write', ['document']]
-];
-
-Benchmark.timeoutMapping = [];
-
-Benchmark.ignoredListeners = ['mousemove', 'mouseover', 'mouseout'];
-
-Benchmark.originals = {};
-
-Benchmark.overrides = {
-  setTimeout: function(callback, timeout) {
-    var event = {type: 'timeout', timeout: timeout};
-    var eventId = Benchmark.agent.createAsyncEvent(event);
-    var timerId = Benchmark.originals.setTimeout.call(this, function() {
-      Benchmark.agent.fireAsyncEvent(eventId, callback);
-    }, Benchmark.playback ? 0 : timeout);
-    Benchmark.timeoutMapping[timerId] = eventId;
-    return timerId;
-  },
-
-  clearTimeout: function(timerId) {
-    var eventId = Benchmark.timeoutMapping[timerId];
-    if (eventId == undefined) return;
-    Benchmark.agent.cancelAsyncEvent(eventId);
-    Benchmark.originals.clearTimeout.call(this, timerId);
-  },
-
-  setInterval: function(callback, timeout) {
-    console.warn('setInterval');
-  },
-
-  clearInterval: function(timerId) {
-    console.warn('clearInterval');
-  },
-
-  XMLHttpRequest: function() {
-    return new Benchmark.XMLHttpRequestWrapper();
-  },
-
-  addEventListener: function(type, listener, useCapture, target, targetType,
-                             originalFunction) {
-    var event = {type: 'addEventListener', target: targetType, eventType: type};
-    var eventId = Benchmark.agent.createAsyncEvent(event);
-    listener.eventId = eventId;
-    listener.wrapper = function(e) {
-      Benchmark.agent.fireAsyncEvent(eventId, function() {
-        listener.call(target, e);
-      });
-    };
-    originalFunction.call(target, type, listener.wrapper, useCapture);
-  },
-
-  addEventListenerToWindow: function(type, listener, useCapture) {
-    if (Benchmark.ignoredListeners.indexOf(type) != -1) return;
-    Benchmark.overrides.addEventListener(
-        type, listener, useCapture, this, 'window',
-        Benchmark.originals.addEventListenerToWindow);
-  },
-
-  addEventListenerToNode: function(type, listener, useCapture) {
-    if (Benchmark.ignoredListeners.indexOf(type) != -1) return;
-    Benchmark.overrides.addEventListener(
-        type, listener, useCapture, this, 'node',
-        Benchmark.originals.addEventListenerToNode);
-  },
-
-  addEventListenerToXHR: function(type, listener, useCapture) {
-    Benchmark.overrides.addEventListener(
-        type, listener, useCapture, this, 'xhr',
-        Benchmark.originals.addEventListenerToXHR);
-  },
-
-  removeEventListener: function(type, listener, useCapture, target,
-                                originalFunction) {
-    Benchmark.agent.cancelAsyncEvent(listener.eventId);
-    originalFunction.call(target, listener.wrapper, useCapture);
-  },
-
-  removeEventListenerFromWindow: function(type, listener, useCapture) {
-    removeEventListener(type, listener, useCapture, this,
-                        Benchmark.originals.removeEventListenerFromWindow);
-  },
-
-  removeEventListenerFromNode: function(type, listener, useCapture) {
-    removeEventListener(type, listener, useCapture, this,
-        Benchmark.originals.removeEventListenerFromNode);
-  },
-
-  removeEventListenerFromXHR: function(type, listener, useCapture) {
-    removeEventListener(type, listener, useCapture, this,
-        Benchmark.originals.removeEventListenerFromXHR);
-  },
-
-  random: function() {
-    return Benchmark.agent.random();
-  },
-
-  Date: function() {
-    var a = arguments;
-    var D = Benchmark.originals.Date, d;
-    switch(a.length) {
-      case 0: d = new D(Benchmark.agent.dateNow()); break;
-      case 1: d = new D(a[0]); break;
-      case 2: d = new D(a[0], a[1]); break;
-      case 3: d = new D(a[0], a[1], a[2]); break;
-      default: Benchmark.die('window.Date', arguments);
-    }
-    d.getTimezoneOffset = function() { return -240; };
-    return d;
-  },
-
-  dateNow: function() {
-    return Benchmark.agent.dateNow();
-  },
-
-  documentWriteln: function() {
-    console.warn('writeln');
-  },
-
-  documentWrite: function() {
-    console.warn('write');
-  }
-};
-
-/**
- * Replaces window functions specified by Benchmark.functionList with overrides
- * and optionally saves original functions to Benchmark.originals.
- * @param {Object} wnd Window object.
- * @param {boolean} storeOriginals When true, original functions are saved to
- * Benchmark.originals.
- */
-Benchmark.installOverrides = function(wnd, storeOriginals) {
-  // Substitute window functions with overrides.
-  for (var i = 0; i < Benchmark.functionList.length; ++i) {
-    var info = Benchmark.functionList[i], object = wnd;
-    var propertyName = info[1], pathToProperty = info[2];
-    if (pathToProperty)
-      for (var j = 0; j < pathToProperty.length; ++j)
-        object = object[pathToProperty[j]];
-    if (storeOriginals)
-      Benchmark.originals[info[0]] = object[propertyName];
-    object[propertyName] = Benchmark.overrides[info[0]];
-  }
-  wnd.__defineSetter__('onload', function() {
-    console.warn('window.onload setter')}
-  );
-
-  // Substitute window functions of static frames when DOM content is loaded.
-  Benchmark.originals.addEventListenerToWindow.call(wnd, 'DOMContentLoaded',
-                                                    function() {
-    var frames = document.getElementsByTagName('iframe');
-    for (var i = 0, frame; frame = frames[i]; ++i) {
-      Benchmark.installOverrides(frame.contentWindow);
-    }
-  }, true);
-
-  // Substitute window functions of dynamically added frames.
-  Benchmark.originals.addEventListenerToWindow.call(
-      wnd, 'DOMNodeInsertedIntoDocument', function(e) {
-        if (e.target.tagName && e.target.tagName.toLowerCase() != 'iframe')
-          return;
-        if (e.target.contentWindow)
-          Benchmark.installOverrides(e.target.contentWindow);
-      }, true);
-};
-
-// Install overrides on top window.
-Benchmark.installOverrides(window, true);
-
-/**
- * window.XMLHttpRequest wrapper. Notifies Benchmark.agent when request is
- * opened, aborted, and when it's ready state changes to DONE.
- * @constructor
- */
-Benchmark.XMLHttpRequestWrapper = function() {
-  this.request = new Benchmark.originals.XMLHttpRequest();
-  this.wrapperReadyState = 0;
-};
-
-// Create XMLHttpRequestWrapper functions and property accessors using original
-// ones.
-(function() {
-  var request = new Benchmark.originals.XMLHttpRequest();
-  for (var property in request) {
-    if (property === 'channel') continue; // Quick fix for FF.
-    if (typeof(request[property]) == 'function') {
-      (function(property) {
-        var f = Benchmark.originals.XMLHttpRequest.prototype[property];
-        Benchmark.XMLHttpRequestWrapper.prototype[property] = function() {
-          f.apply(this.request, arguments);
-        };
-      })(property);
-    } else {
-      (function(property) {
-        Benchmark.XMLHttpRequestWrapper.prototype.__defineGetter__(property,
-            function() { return this.request[property]; });
-        Benchmark.XMLHttpRequestWrapper.prototype.__defineSetter__(property,
-            function(value) {
-              this.request[property] = value;
-            });
-
-      })(property);
-    }
-  }
-})();
-
-// Define onreadystatechange getter.
-Benchmark.XMLHttpRequestWrapper.prototype.__defineGetter__('onreadystatechange',
-    function() { return this.clientOnReadyStateChange; });
-
-// Define onreadystatechange setter.
-Benchmark.XMLHttpRequestWrapper.prototype.__defineSetter__('onreadystatechange',
-    function(value) { this.clientOnReadyStateChange = value; });
-
-Benchmark.XMLHttpRequestWrapper.prototype.__defineGetter__('readyState',
-    function() { return this.wrapperReadyState; });
-
-Benchmark.XMLHttpRequestWrapper.prototype.__defineSetter__('readyState',
-    function() {});
-
-
-/**
- * Wrapper for XMLHttpRequest.open.
- */
-Benchmark.XMLHttpRequestWrapper.prototype.open = function() {
-  var url = Benchmark.extractURL(arguments[1]);
-  var event = {type: 'request', method: arguments[0], url: url};
-  this.eventId = Benchmark.agent.createAsyncEvent(event);
-
-  var request = this.request;
-  var requestWrapper = this;
-  Benchmark.originals.XMLHttpRequest.prototype.open.apply(request, arguments);
-  request.onreadystatechange = function() {
-    if (this.readyState != 4 || requestWrapper.cancelled) return;
-    var callback = requestWrapper.clientOnReadyStateChange || function() {};
-    Benchmark.agent.fireAsyncEvent(requestWrapper.eventId, function() {
-      requestWrapper.wrapperReadyState = 4;
-      callback.call(request);
-    });
-  }
-};
-
-/**
- * Wrapper for XMLHttpRequest.abort.
- */
-Benchmark.XMLHttpRequestWrapper.prototype.abort = function() {
-  this.cancelled = true;
-  Benchmark.originals.XMLHttpRequest.prototype.abort.apply(
-      this.request, arguments);
-  Benchmark.agent.cancelAsyncEvent(this.eventId);
-};
-
-/**
- * Driver url for reporting results.
- * @const {string}
- */
-Benchmark.DRIVER_URL = '/benchmark/';
-
-/**
- * Posts request as json to Benchmark.DRIVER_URL.
- * @param {Object} request Request to post.
- */
-Benchmark.post = function(request, async) {
-  if (async === undefined) async = true;
-  var xmlHttpRequest = new Benchmark.originals.XMLHttpRequest();
-  xmlHttpRequest.open("POST", Benchmark.DRIVER_URL, async);
-  xmlHttpRequest.setRequestHeader("Content-type", "application/json");
-  xmlHttpRequest.send(JSON.stringify(request));
-};
-
-/**
- * Extracts url string.
- * @param {(string|Object)} url Object or string representing url.
- * @return {string} Extracted url.
- */
-Benchmark.extractURL = function(url) {
-  if (typeof(url) == 'string') return url;
-  return url.nI || url.G || '';
-};
-
-
-/**
- * Logs error message to console and throws an exception.
- * @param {string} message Error message
- */
-Benchmark.die = function(message) {
-  // Debugging stuff.
-  var position = top.Benchmark.playback ? top.Benchmark.agent.timelinePosition :
-                 top.Benchmark.agent.timeline.length;
-  message = message + ' at position ' + position;
-  console.error(message);
-  Benchmark.post({error: message});
-  console.log(Benchmark.originals.setTimeout.call(window, function() {}, 9999));
-  try { (0)() } catch(ex) { console.error(ex.stack); }
-  throw message;
-};