DevTools: Use proper target when processing worker thread events.

third_party/WebKit/Source/devtools/front_end/timeline/CountersGraph.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 57 matching lines @@
     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);
 
     this._counters = [];
     this._counterUI = [];
 }
 
 WebInspector.CountersGraph.prototype = {
-    /**
-     * @return {?WebInspector.Target}
-     */
-    target: function()
-    {
-        return this._model.target();
-    },
-
     _createCurrentValuesBar: function()
     {
         this._currentValuesBar = this._graphsContainer.element.createChild("div");
         this._currentValuesBar.id = "counter-values-bar";
     },
 
     /**
      * @param {string} uiName
      * @param {string} uiValueTemplate
      * @param {string} color
@@ skipping 539 matching lines @@
 
     /**
      * @override
      * @return {number}
      */
     boundarySpan: function()
     {
         return this._maximumBoundary - this._minimumBoundary;
     }
 }