DevTools: eliminate ToolbarButton.setState method; cleanup toolbar.css

third_party/WebKit/Source/devtools/front_end/ui/ActionRegistry.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 /**
  * @unrestricted
  */
 WebInspector.ActionRegistry = class {
   constructor() {
     /** @type {!Map.<string, !WebInspector.Action>} */
     this._actionsById = new Map();
@@ skipping 95 matching lines @@
   }
 
   /**
    * @return {string}
    */
   icon() {
     return this._extension.descriptor()['iconClass'] || '';
   }
 
   /**
+   * @return {string}
+   */
+  toggledIcon() {
+    return this._extension.descriptor()['toggledIconClass'] || '';
+  }
+
+  /**
    * @param {boolean} enabled
    */
   setEnabled(enabled) {
     if (this._enabled === enabled)
       return;
 
     this._enabled = enabled;
     this.dispatchEventToListeners(WebInspector.Action.Events.Enabled, enabled);
   }
 
@@ skipping 67 matching lines @@
   /**
    * @param {!WebInspector.Context} context
    * @param {string} actionId
    * @return {boolean}
    */
   handleAction: function(context, actionId) {}
 };
 
 /** @type {!WebInspector.ActionRegistry} */
 WebInspector.actionRegistry;