DevTools: migrate from ui-setting to settings extension point.

Source/devtools/front_end/components/HandlerRegistry.js

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 280 matching lines @@
      * @return {boolean}
      */
     handleLink: function(url, lineNumber)
     {
         return WebInspector.openAnchorLocationRegistry.dispatch({ url: url, lineNumber: lineNumber});
     }
 }
 
 /**
  * @constructor
- * @extends {WebInspector.UISettingDelegate}
+ * @implements {WebInspector.SettingUI}
  */
-WebInspector.HandlerRegistry.OpenAnchorLocationSettingDelegate = function()
+WebInspector.HandlerRegistry.OpenAnchorLocationSettingUI = function()
 {
-    WebInspector.UISettingDelegate.call(this);
 }
 
-WebInspector.HandlerRegistry.OpenAnchorLocationSettingDelegate.prototype = {
+WebInspector.HandlerRegistry.OpenAnchorLocationSettingUI.prototype = {
     /**
      * @override
      * @return {?Element}
      */
     settingElement: function()
     {
         if (!WebInspector.openAnchorLocationRegistry.handlerNames.length)
             return null;
 
         var handlerSelector = new WebInspector.HandlerSelector(WebInspector.openAnchorLocationRegistry);
         return WebInspector.SettingsUI.createCustomSetting(WebInspector.UIString("Open links in"), handlerSelector.element);
-    },
-
-    __proto__: WebInspector.UISettingDelegate.prototype
+    }
 }
 
 /**
  * @type {!WebInspector.HandlerRegistry}
  */
 WebInspector.openAnchorLocationRegistry;