DevTools: Move radio button input element into Shadow DOM

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

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
@@ skipping 1336 matching lines @@
     },
 
     __proto__: HTMLButtonElement.prototype
   });
 
   UI.registerCustomElement('label', 'dt-radio', {
     /**
      * @this {Element}
      */
     createdCallback: function() {
-      this.radioElement = this.createChild('input', 'dt-radio-button');
+      var root = UI.createShadowRootWithCoreStyles(this, 'ui/radioButton.css');
+      this.radioElement = root.createChild('input', 'dt-radio-button');
       this.radioElement.type = 'radio';
-      var root = UI.createShadowRootWithCoreStyles(this, 'ui/radioButton.css');
-      root.createChild('content').select = '.dt-radio-button';
       root.createChild('content');
       this.addEventListener('click', radioClickHandler, false);
     },
 
     __proto__: HTMLLabelElement.prototype
   });
 
   /**
    * @param {!Event} event
    * @suppressReceiverCheck
@@ skipping 660 matching lines @@
     callback(fileSelectorElement.files[0]);
   }
   return fileSelectorElement;
 };
 
 /**
  * @const
  * @type {number}
  */
 UI.MaxLengthForDisplayedURLs = 150;