Make the fuchsia mojo/public repo the source of truth.

mojo/public/tools/bindings/pylib/mojom_tests/fileutil_unittest.py

-# Copyright 2015 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.
-
-import imp
-import os.path
-import shutil
-import sys
-import tempfile
-import unittest
-
-def _GetDirAbove(dirname):
-  """Returns the directory "above" this file containing |dirname| (which must
-  also be "above" this file)."""
-  path = os.path.abspath(__file__)
-  while True:
-    path, tail = os.path.split(path)
-    assert tail
-    if tail == dirname:
-      return path
-
-try:
-  imp.find_module("mojom")
-except ImportError:
-  sys.path.append(os.path.join(_GetDirAbove("pylib"), "pylib"))
-from mojom import fileutil
-
-
-class FileUtilTest(unittest.TestCase):
-
-  def testEnsureDirectoryExists(self):
-    """Test that EnsureDirectoryExists fuctions correctly."""
-
-    temp_dir = tempfile.mkdtemp()
-    try:
-      self.assertTrue(os.path.exists(temp_dir))
-
-      # Directory does not exist, yet.
-      full = os.path.join(temp_dir, "foo", "bar")
-      self.assertFalse(os.path.exists(full))
-
-      # Create the directory.
-      fileutil.EnsureDirectoryExists(full)
-      self.assertTrue(os.path.exists(full))
-
-      # Trying to create it again does not cause an error.
-      fileutil.EnsureDirectoryExists(full)
-      self.assertTrue(os.path.exists(full))
-
-      # Bypass check for directory existence to tickle error handling that
-      # occurs in response to a race.
-      fileutil.EnsureDirectoryExists(full, always_try_to_create=True)
-      self.assertTrue(os.path.exists(full))
-    finally:
-      shutil.rmtree(temp_dir)