switch to unittest.mock
We've patched Python 3.6 inside the SDK to include the mock fix we need.
BUG=b:187789661
TEST=CQ passes
Cq-Depend: chromium:2911618
Change-Id: Ib6ba4f9176cf8e121220a3bfe5015dcb5e3d7499
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2910244
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
diff --git a/api/controller/image_unittest.py b/api/controller/image_unittest.py
index 0e14a02..25d4b0f 100644
--- a/api/controller/image_unittest.py
+++ b/api/controller/image_unittest.py
@@ -5,6 +5,7 @@
"""Image service tests."""
import os
+from unittest import mock
from chromite.api import api_config
from chromite.api import controller
@@ -19,7 +20,6 @@
from chromite.lib import osutils
from chromite.scripts import pushimage
from chromite.service import image as image_service
-from chromite.third_party import mock
class CreateTest(cros_test_lib.MockTempDirTestCase, api_config.ApiConfigMixin):