DevTools: Get rid of Element.prototype.enableStyleClass

Source/devtools/front_end/SearchableView.js

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  * 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:
  *
@@ skipping 226 matching lines @@
 
     closeSearch: function()
     {
         this.cancelSearch();
         if (WebInspector.currentFocusElement().isDescendant(this._footerElementContainer))
             WebInspector.setCurrentFocusElement(WebInspector.previousFocusElement());
     },
 
     _toggleSearchBar: function(toggled)
     {
-        this._footerElementContainer.enableStyleClass("hidden", !toggled);
+        this._footerElementContainer.classList.toggle("hidden", !toggled);
         this.doResize();
     },
 
     cancelSearch: function()
     {
         if (!this._searchIsVisible)
             return;
         this.resetSearch();
         delete this._searchIsVisible;
         this._toggleSearchBar(false);
@@ skipping 98 matching lines @@
             }
         }
         this._performSearch(false, false);
         this._searchInputElement.focus();
         this._searchInputElement.select();
         this._searchIsVisible = true;
     },
 
     _updateReplaceVisibility: function()
     {
-        this._replaceElement.enableStyleClass("hidden", !this._replaceable);
+        this._replaceElement.classList.toggle("hidden", !this._replaceable);
         if (!this._replaceable) {
             this._replaceCheckboxElement.checked = false;
             this._updateSecondRowVisibility();
         }
     },
 
     /**
      * @param {!Event} event
      */
     _onSearchFieldManualFocus: function(event)
@@ skipping 158 matching lines @@
      * @param {string} text
      */
     replaceSelectionWith: function(text) { },
 
     /**
      * @param {string} query
      * @param {string} replacement
      */
     replaceAllWith: function(query, replacement) { }
 }