Make Gerrit the default for pdfium_tests code reviews

BUG=665583

Change-Id: I4589d8d722c4d8fbd55b15977ae42caaa4a11665
Reviewed-on: https://pdfium-review.googlesource.com/2291
Reviewed-by: dsinclair <dsinclair@chromium.org>
diff --git a/codereview.settings b/codereview.settings
index 1a6f315..5472c91 100644
--- a/codereview.settings
+++ b/codereview.settings
@@ -1,8 +1,7 @@
-# This file is used by git-cl to get repository specific information.
-CODE_REVIEW_SERVER: codereview.chromium.org
+# This file is used by git cl to get repository specific information.
 CC_LIST: pdfium-reviews@googlegroups.com
+CODE_REVIEW_SERVER: codereview.chromium.org
+GERRIT_HOST: True
 STATUS: http://pdfium-status.appspot.com/status
 TRY_ON_UPLOAD: False
 VIEW_VC: https://pdfium.googlesource.com/pdfium_tests/+/
-GITCL_PREUPLOAD: http://src.chromium.org/viewvc/trunk/tools/depot_tools/git-cl-upload-hook?revision=HEAD&root=chrome
-GITCL_PREDCOMMIT: http://src.chromium.org/viewvc/trunk/tools/depot_tools/git-cl-upload-hook?revision=HEAD&root=chrome