DevTools: get rid of WebInspector.cssModel, use target models instead

Source/devtools/front_end/resources/ResourcesPanel.js

 /*
  * Copyright (C) 2007, 2008, 2010 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  * Copyright (C) 2013 Samsung Electronics. 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 126 matching lines @@
 
     wasShown: function()
     {
         WebInspector.Panel.prototype.wasShown.call(this);
         this._initialize();
     },
 
     _initialize: function()
     {
         if (!this._initialized && this.isShowing() && this._cachedResourcesWereLoaded) {
-            var target = /** @type {!WebInspector.Target} */ (WebInspector.targetManager.activeTarget());
+            var target = /** @type {!WebInspector.Target} */ (WebInspector.targetManager.mainTarget());
             this._populateResourceTree();
             this._populateDOMStorageTree();
             this._populateApplicationCacheTree(target);
             this.indexedDBListTreeElement._initialize();
             if (WebInspector.experimentsSettings.fileSystemInspection.isEnabled())
                 this.fileSystemListTreeElement._initialize();
             this._initDefaultSelection();
             this._initialized = true;
         }
     },
@@ skipping 774 matching lines @@
  * @param {string} settingsKey
  * @param {?Array.<string>=} iconClasses
  * @param {boolean=} noIcon
  */
 WebInspector.StorageCategoryTreeElement = function(storagePanel, categoryName, settingsKey, iconClasses, noIcon)
 {
     WebInspector.BaseStorageTreeElement.call(this, storagePanel, null, categoryName, iconClasses, false, noIcon);
     this._expandedSettingKey = "resources" + settingsKey + "Expanded";
     WebInspector.settings[this._expandedSettingKey] = WebInspector.settings.createSetting(this._expandedSettingKey, settingsKey === "Frames");
     this._categoryName = categoryName;
-    this._target = /** @type {!WebInspector.Target} */ (WebInspector.targetManager.activeTarget());
+    this._target = /** @type {!WebInspector.Target} */ (WebInspector.targetManager.mainTarget());
 }
 
 WebInspector.StorageCategoryTreeElement.prototype = {
     /**
      * @return {!WebInspector.Target}
      */
     target: function()
     {
         return this._target;
     },
@@ skipping 1151 matching lines @@
 }
 
 WebInspector.StorageCategoryView.prototype = {
     setText: function(text)
     {
         this._emptyView.text = text;
     },
 
     __proto__: WebInspector.VBox.prototype
 }