[DevTools] Remove HelpScreen, turn SettingsScreen into dialog and web component.

third_party/WebKit/Source/devtools/front_end/settings/EditFileSystemView.js

 /*
  * Copyright (C) 2013 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 18 matching lines @@
  */
 
 /**
  * @constructor
  * @extends {WebInspector.VBox}
  * @param {string} fileSystemPath
  */
 WebInspector.EditFileSystemView = function(fileSystemPath)
 {
     WebInspector.VBox.call(this);
+    this.registerRequiredCSS("settings/settingsScreen.css");
     this.element.classList.add("dialog-contents", "settings-dialog", "settings-tab");
     this._fileSystemPath = fileSystemPath;
 
     var contents = this.element.createChild("div", "contents");
 
     WebInspector.fileSystemMapping.addEventListener(WebInspector.FileSystemMapping.Events.FileMappingAdded, this._fileMappingAdded, this);
     WebInspector.fileSystemMapping.addEventListener(WebInspector.FileSystemMapping.Events.FileMappingRemoved, this._fileMappingRemoved, this);
     WebInspector.isolatedFileSystemManager.addEventListener(WebInspector.IsolatedFileSystemManager.Events.ExcludedFolderAdded, this._excludedFolderAdded, this);
     WebInspector.isolatedFileSystemManager.addEventListener(WebInspector.IsolatedFileSystemManager.Events.ExcludedFolderRemoved, this._excludedFolderRemoved, this);
 
@@ skipping 317 matching lines @@
         for (var key in this._entries) {
             var entry = this._entries[key];
             if (entry.configurable && entry.pathPrefix === prefix)
                 return false;
         }
         return true;
     },
 
     __proto__: WebInspector.VBox.prototype
 }