DevTools: encapsulate presentation model in timeline view.

Source/devtools/front_end/TimelineFlameChart.js

 /*
  * Copyright (C) 2014 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 182 matching lines @@
             if (record.type === WebInspector.TimelineModel.RecordType.GPUTask || !!record.thread)
                 return;
         } else {
             if (record.type === WebInspector.TimelineModel.RecordType.Program || !record.thread)
                 return;
         }
 
         var index = this._entryTitles.length;
         this._entryTitles[index] = record.type;
         timelineData.entryOffsets[index] = record.startTime - startTime;
-        timelineData.entryLevels[index] = depth - 1;
+        timelineData.entryLevels[index] = depth;
         timelineData.entryTotalTimes[index] = endTime - record.startTime;
         this._entryColors[index] = this._colorGenerator.colorForID(WebInspector.TimelineUIUtils.categoryForRecord(record).name);
         this._maxStackDepth = Math.max(this._maxStackDepth, depth + 1);
     },
 
     /**
      * @param {number} entryIndex
      * @return {?Array.<!{title: string, text: string}>}
      */
     prepareHighlightedEntryInfo: function(entryIndex)
@@ skipping 53 matching lines @@
 WebInspector.TimelineFlameChart.prototype = {
     /**
      * @param {number} windowStartTime
      * @param {number} windowEndTime
      */
     requestWindowTimes: function(windowStartTime, windowEndTime)
     {
         this._delegate.requestWindowTimes(windowStartTime, windowEndTime);
     },
 
-    refreshRecords: function()
+    /**
+     * @param {?RegExp} textFilter
+     */
+    refreshRecords: function(textFilter)
     {
+        this._dataProvider.reset();
+        this._mainView._scheduleUpdate();
     },
 
     reset: function()
     {
         this._automaticallySizeWindow = true;
         this._dataProvider.reset();
         this._mainView.setWindowTimes(0, Infinity);
     },
 
     _onRecordingStarted: function()
@@ skipping 55 matching lines @@
     },
 
     /**
      * @param {?WebInspector.TimelineModel.Record} record
      */
     setSelectedRecord: function(record)
     {
     },
 
     __proto__: WebInspector.View.prototype
-}
+}