[Findit] Factoring the gitiles (etc) stuff out into its own directory

appengine/findit/common/test/diff_test.py

Index: appengine/findit/common/test/diff_test.py
diff --git a/appengine/findit/common/test/diff_test.py b/appengine/findit/common/test/diff_test.py
deleted file mode 100644
index 4c5f946aa30b636e3122f7a0cb8ecd3c178e00c2..0000000000000000000000000000000000000000
--- a/appengine/findit/common/test/diff_test.py
+++ /dev/null
@@ -1,17 +0,0 @@
-# Copyright 2014 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 unittest
-
-from common import diff
-from common.diff import ChangeType
-
-class DiffTest(unittest.TestCase):
-  def testKnownChangeTypes(self):
-    for change_type in [ChangeType.ADD, ChangeType.DELETE, ChangeType.MODIFY,
-                        ChangeType.COPY, ChangeType.RENAME]:
-      self.assertTrue(diff.IsKnownChangeType(change_type))
-
-  def testUnknownChangeType(self):
-    self.assertFalse(diff.IsKnownChangeType('unknown change type'))