Move over a bunch of tests from browser_tests to content_browsertests.

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);
-}