[Extensions Docs] Fixed typo in integration test.

Skipping CQ due to timeout failures. See the bug for more info.

No-Try: true
Bug: 821544
Change-Id: I16e9363afa44fdde5fd67391e118bca94440af5b
Reviewed-on: https://chromium-review.googlesource.com/967426
Commit-Queue: David Bertoni <dbertoni@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#544149}

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

@@ -251,7 +251,8 @@ class IntegrationTest(unittest.TestCase):
       try:
         response = LocalRenderer.Render(_ToPosixPath(filename))
         self.assertTrue(response.status == 200 or response.status == 302,
-                        'Got %s when rendering %s' % (response.status, path))
+                        'Got %s when rendering %s' % (response.status,
+                                                      _ToPosixPath(filename)))
         self.assertTrue(response.content != '' or response.status == 302)
       finally:
         print('Took %s seconds' % (time.time() - start_time))