Revert of Revert of DevTools: allow storing devtools preferences on the browser side. [blink]

Source/devtools/front_end/workspace/FileSystemMapping.js

 /*
  * Copyright (C) 2012 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 /**
  * @constructor
  * @extends {WebInspector.Object}
  */
 WebInspector.FileSystemMapping = function()
 {
     WebInspector.Object.call(this);
-    this._fileSystemMappingSetting = WebInspector.settings.createSetting("fileSystemMapping", {});
+    this._fileSystemMappingSetting = WebInspector.settings.createLocalSetting("fileSystemMapping", {});
     /** @type {!Object.<string, !Array.<!WebInspector.FileSystemMapping.Entry>>} */
     this._fileSystemMappings = {};
     this._loadFromSettings();
 }
 
 WebInspector.FileSystemMapping.Events = {
     FileMappingAdded: "FileMappingAdded",
     FileMappingRemoved: "FileMappingRemoved"
 }
 
@@ skipping 242 matching lines @@
  * @param {string} fileSystemPath
  * @param {string} urlPrefix
  * @param {string} pathPrefix
  */
 WebInspector.FileSystemMapping.Entry = function(fileSystemPath, urlPrefix, pathPrefix)
 {
     this.fileSystemPath = fileSystemPath;
     this.urlPrefix = urlPrefix;
     this.pathPrefix = pathPrefix;
 }