Make test_results deployable again.

appengine/test_results/test/testfile_test.py

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+import os
 import unittest
 
-from appengine.test_results.model import datastorefile
-from appengine.test_results.model import testfile
+from appengine.path_mangler_hack import PathMangler
+with PathMangler(os.path.dirname(os.path.dirname(__file__))):
+  from appengine.test_results.model import datastorefile
+  from appengine.test_results.model import testfile
 
 from google.appengine.datastore import datastore_stub_util
 from google.appengine.ext import testbed
 
 TEST_DATA = [
     # master, builder, test_type, build_number, name, data; order matters.
     ['ChromiumWebKit', 'WebKit Linux', 'layout-tests',
      1, 'webkit_linux_results.json', 'a'],
     ['ChromiumWebKit', 'WebKit Win7', 'layout-tests',
      2, 'webkit_win7_results.json', 'b'],
@@ skipping 80 matching lines @@
     self.assertEqual(len(TEST_DATA), len(files))
 
     files[0].delete_all()
 
     files = self._getAllFiles()
     self.assertEqual(len(TEST_DATA) - 1, len(files))
 
 
 if __name__ == '__main__':
   unittest.main()