Persist filter bar state.

Source/devtools/front_end/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 1655 matching lines @@
 {
     WebInspector.Panel.call(this, "network");
     this.registerRequiredCSS("networkPanel.css");
     this._injectStyles();
 
     this._panelStatusBarElement = this.element.createChild("div", "panel-status-bar");
     this._filterBar = new WebInspector.FilterBar();
     this._filtersContainer = this.element.createChild("div", "network-filters-header hidden");
     this._filtersContainer.appendChild(this._filterBar.filtersElement());
     this._filterBar.addEventListener(WebInspector.FilterBar.Events.FiltersToggled, this._onFiltersToggled, this);
+    this._filterBar.setName("networkPanel");
 
     this._searchableView = new WebInspector.SearchableView(this);
     this._searchableView.show(this.element);
     this._contentsElement = this._searchableView.element;
 
     this._splitView = new WebInspector.SplitView(true, false, "networkPanelSplitViewState");
     this._splitView.show(this._contentsElement);
     this._splitView.hideMain();
 
     var defaultColumnsVisibility = WebInspector.NetworkLogView._defaultColumnsVisibility;
@@ skipping 1188 matching lines @@
 WebInspector.NetworkDataGridNode.RequestPropertyComparator = function(propertyName, revert, a, b)
 {
     var aValue = a._request[propertyName];
     var bValue = b._request[propertyName];
     if (aValue > bValue)
         return revert ? -1 : 1;
     if (bValue > aValue)
         return revert ? 1 : -1;
     return 0;
 }