DevTools: Navigate TabbedPane with arrow keys

third_party/WebKit/Source/devtools/front_end/network/NetworkPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 33 matching lines @@
         /** @type {!UI.Action }*/ (UI.actionRegistry.action('network.toggle-recording'));
 
     /** @type {?PerfUI.FilmStripView} */
     this._filmStripView = null;
     /** @type {?Network.NetworkPanel.FilmStripRecorder} */
     this._filmStripRecorder = null;
 
     this._panelToolbar = new UI.Toolbar('', this.element);
     this._filterBar = new UI.FilterBar('networkPanel', true);
     this._filterBar.show(this.element);
+    this.setDefaultFocusedChild(this._filterBar);
 
     // Create top overview component.
     this._overviewPane = new PerfUI.TimelineOverviewPane('network');
     this._overviewPane.addEventListener(
         PerfUI.TimelineOverviewPane.Events.WindowChanged, this._onWindowChanged.bind(this));
     this._overviewPane.element.id = 'network-overview-panel';
     this._networkOverview = new Network.NetworkOverview();
     this._overviewPane.setOverviewControls([this._networkOverview]);
     this._calculator = new Network.NetworkTransferTimeCalculator();
 
@@ skipping 683 matching lines @@
    * @param {string} actionId
    * @return {boolean}
    */
   handleAction(context, actionId) {
     var panel = UI.context.flavor(Network.NetworkPanel);
     console.assert(panel && panel instanceof Network.NetworkPanel);
     panel._toggleRecording();
     return true;
   }
 };