Reapply the expanded names with the correct form of requestFileSystem on the

tools/dom/templates/html/impl/impl_WorkerContext.darttemplate

+// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+part of $LIBRARYNAME;
+
+$(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
+$if DART2JS
+  /**
+   * Gets an instance of the Indexed DB factory to being using Indexed DB.
+   *
+   * Use [IdbFactory.supported] to check if Indexed DB is supported on the
+   * current platform.
+   */
+  @SupportedBrowser(SupportedBrowser.CHROME, '23.0')
+  @SupportedBrowser(SupportedBrowser.FIREFOX, '15.0')
+  @SupportedBrowser(SupportedBrowser.IE, '10.0')
+  @Experimental
+  IdbFactory get indexedDB =>
+      JS('IdbFactory',
+         '#.indexedDB || #.webkitIndexedDB || #.mozIndexedDB',
+         this, this, this);
+$endif
+
+  /**
+   * Access a sandboxed file system of the specified `size`. If `persistent` is
+   * true, the application will request permission from the user to create
+   * lasting storage. This storage cannot be freed without the user's
+   * permission. Returns a [Future] whose value stores a reference to the
+   * sandboxed file system for use. Because the file system is sandboxed,
+   * applications cannot access file systems created in other web pages. 
+   */
+  @DomName('WorkerContext.webkitRequestFileSystem')
+  @DocsEditable
+  @SupportedBrowser(SupportedBrowser.CHROME)
+  @Experimental
+  Future<FileSystem> requestFileSystem(int size, {bool persistent: false}) {
+    return _requestFileSystem(persistent? 1 : 0, size);
+  }
+
+  /**
+   * Access a sandboxed file system of the specified `size`. If `persistent` is
+   * true, the application will request permission from the user to create
+   * lasting storage. This storage cannot be freed without the user's
+   * permission. This call will block until a reference to the synchronous file 
+   * system API has been obtained. Because the file system is sandboxed,
+   * applications cannot access file systems created in other web pages. 
+   */
+  @DomName('WorkerContext.webkitRequestFileSystemSync')
+  @DocsEditable
+  @SupportedBrowser(SupportedBrowser.CHROME)
+  @Experimental
+  FileSystemSync requestFileSystemSync(int size, {bool persistent: false}) {
+    return _requestFileSystemSync(persistent? 1 : 0, size);
+  }
+$!MEMBERS
+}