Add browser_tests for FileAPI with Quota.

chrome/test/data/fileapi/create_test.js

+// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+function requestFileSystemSuccess(fs)
+{
+  fs.root.getFile('foo', {create: true, exclusive: false}, done,
+                  function(e) { fail('Open:' + fileErrorToString(e)); } );
+}
+
+function test()
+{
+  debug('Requesting FileSystem');
+  window.webkitRequestFileSystem(
+      window.TEMPORARY,
+      1024 * 1024,
+      requestFileSystemSuccess,
+      unexpectedErrorCallback);
+}