The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/037e1d8c996380be7dc34fce29e6f70d6dc318c3

commit 037e1d8c996380be7dc34fce29e6f70d6dc318c3
Author: sebsg <sebsg@chromium.org>
Date: Fri Apr 08 16:39:43 2016

They are currently sorted by frecency with the rest of the cards.

BUG= 601165 
TEST=PersonalDataManagerTest

Review URL: https://codereview.chromium.org/1867523003

Cr-Commit-Position: refs/heads/master@{#386098}

[modify] https://crrev.com/037e1d8c996380be7dc34fce29e6f70d6dc318c3/components/autofill/core/browser/personal_data_manager.cc
[modify] https://crrev.com/037e1d8c996380be7dc34fce29e6f70d6dc318c3/components/autofill/core/browser/personal_data_manager.h
[modify] https://crrev.com/037e1d8c996380be7dc34fce29e6f70d6dc318c3/components/autofill/core/browser/personal_data_manager_unittest.cc