DevTools: encapsulate presentation model in timeline view.

Source/devtools/front_end/MemoryStatistics.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 45 matching lines @@
     this._canvasContainer.addEventListener("mouseover", this._onMouseMove.bind(this), true);
     this._canvasContainer.addEventListener("mousemove", this._onMouseMove.bind(this), true);
     this._canvasContainer.addEventListener("mouseout", this._onMouseOut.bind(this), true);
     this._canvasContainer.addEventListener("click", this._onClick.bind(this), true);
     // We create extra timeline grid here to reuse its event dividers.
     this._timelineGrid = new WebInspector.TimelineGrid();
     this._canvasContainer.appendChild(this._timelineGrid.dividersElement);
 
     // Populate sidebar
     this.sidebarElement().createChild("div", "sidebar-tree sidebar-tree-section").textContent = WebInspector.UIString("COUNTERS");
-    this._createAllCounters();
+    this.createAllCounters();
 }
 
 /**
  * @constructor
  * @param {string} counterName
  */
 WebInspector.MemoryStatistics.Counter = function(counterName)
 {
     this.counterName = counterName;
     this.times = [];
@@ skipping 167 matching lines @@
         return this._swatch.checked;
     },
 }
 
 WebInspector.MemoryStatistics.prototype = {
     _createCurrentValuesBar: function()
     {
         throw new Error("Not implemented");
     },
 
-    _createAllCounters: function()
+    createAllCounters: function()
     {
         throw new Error("Not implemented");
     },
 
     /**
      * @param {!WebInspector.TimelineModel.Record} record
      */
     addRecord: function(record)
     {
         throw new Error("Not implemented");
@@ skipping 127 matching lines @@
     refresh: function()
     {
         delete this._refreshTimer;
         this._timelineGrid.updateDividers(this._calculator);
         this.draw();
         this._refreshCurrentValues();
     },
 
     refreshRecords: function()
     {
+        this.reset();
+        var records = this._model.records();
+        for (var i = 0; i < records.length; ++i)
+            this.addRecord(records[i]);
     },
 
     /**
      * @param {number} originY
      * @param {number} height
      */
     _setVerticalClip: function(originY, height)
     {
         this._originY = originY;
         this._clippedHeight = height;
@@ skipping 16 matching lines @@
 
     /**
      * @param {?WebInspector.TimelineModel.Record} record
      */
     setSelectedRecord: function(record)
     {
     },
 
     __proto__: WebInspector.SplitView.prototype
 }