Docserver: Make MockFileSystem not iterate over the entire file system as part

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

Index: chrome/common/extensions/docs/server2/compiled_file_system_test.py
diff --git a/chrome/common/extensions/docs/server2/compiled_file_system_test.py b/chrome/common/extensions/docs/server2/compiled_file_system_test.py
index 74eef3761ee8d5724ff0ab944ffac4000077043b..60570f7d8f85d85867d4f65f6932d5129314b46a 100755
--- a/chrome/common/extensions/docs/server2/compiled_file_system_test.py
+++ b/chrome/common/extensions/docs/server2/compiled_file_system_test.py
@@ -139,8 +139,9 @@ class CompiledFileSystemTest(unittest.TestCase):
     self.assertEqual(set(('file.html',)),
                      set(compiled_fs.GetFromFileListing('apps/fakedir').Get()))
 
-    compiled_fs._file_system._obj['404.html'] = 'boom'
-    compiled_fs._file_system._obj['apps']['fakedir']['boom.html'] = 'blam'
+    compiled_fs._file_system._path_values['404.html'] = 'boom'
+    compiled_fs._file_system._path_values['apps/fakedir/'] = [
+        'file.html', 'boom.html']
     self.assertEqual('404.html contents',
                      compiled_fs.GetFromFile('404.html').Get())
     self.assertEqual(set(('file.html',)),