DevTools: [FlameChart] focus flamechart when it gets shown

Source/devtools/front_end/profiler/CPUProfileFlameChart.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 370 matching lines @@
     this._overviewPane = new WebInspector.CPUProfileFlameChart.OverviewPane(dataProvider);
     this._overviewPane.show(this.element);
 
     this._mainPane = new WebInspector.FlameChart(dataProvider, this._overviewPane, true);
     this._mainPane.show(this.element);
     this._mainPane.addEventListener(WebInspector.FlameChart.Events.EntrySelected, this._onEntrySelected, this);
     this._overviewPane.addEventListener(WebInspector.OverviewGrid.Events.WindowChanged, this._onWindowChanged, this);
 }
 
 WebInspector.CPUProfileFlameChart.prototype = {
+    focus: function()
+    {
+        this._mainPane.focus();
+    },
+
     /**
      * @param {!WebInspector.Event} event
      */
     _onWindowChanged: function(event)
     {
         var windowLeft = event.data.windowTimeLeft;
         var windowRight = event.data.windowTimeRight;
         this._mainPane.setWindowTimes(windowLeft, windowRight);
     },
 
@@ skipping 252 matching lines @@
     {
         var ratio = window.devicePixelRatio;
         this._overviewCanvas.width = width * ratio;
         this._overviewCanvas.height = height * ratio;
         this._overviewCanvas.style.width = width + "px";
         this._overviewCanvas.style.height = height + "px";
     },
 
     __proto__: WebInspector.VBox.prototype
 }