Doc server: support interfaces in src/extensions

chrome/common/extensions/docs/server2/host_file_system_provider_test.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 from copy import deepcopy
 import unittest
 
-from extensions_paths import API
+from extensions_paths import CHROME_API
 from file_system import FileNotFoundError
 from host_file_system_provider import HostFileSystemProvider
 from object_store_creator import ObjectStoreCreator
 from test_data.canned_data import CANNED_API_FILE_SYSTEM_DATA
 from test_file_system import TestFileSystem
 
 class HostFileSystemProviderTest(unittest.TestCase):
   def setUp(self):
-    self._idle_path = API + 'idle.json'
+    self._idle_path = CHROME_API + 'idle.json'
     self._canned_data = deepcopy(CANNED_API_FILE_SYSTEM_DATA)
 
   def _constructor_for_test(self, branch, **optargs):
     return TestFileSystem(self._canned_data[branch])
 
   def testWithCaching(self):
     creator = HostFileSystemProvider(
         ObjectStoreCreator.ForTest(),
         constructor_for_test=self._constructor_for_test)
 
@@ skipping 10 matching lines @@
         ObjectStoreCreator.ForTest(),
         offline=True,
         constructor_for_test=self._constructor_for_test)
 
     fs = creator.GetBranch('1500')
     # Offline file system should raise a FileNotFoundError if read is attempted.
     self.assertRaises(FileNotFoundError, fs.ReadSingle(self._idle_path).Get)
 
 if __name__ == '__main__':
   unittest.main()