The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/43391bda1708665a069ca796e59c60b15720b37c

commit 43391bda1708665a069ca796e59c60b15720b37c
Author: sebsg <sebsg@chromium.org>
Date: Mon Apr 25 19:50:09 2016

Set the use count to one and the use date and modification date to "now".

Changed AutofillProfileSyncableService::MergeProfile to MergeSimilarProfiles. It now compared the merge_into before and after the merge to determine if the merge had any effect. It fixes  bug 248440 .

Also changed AutofillProfile::PrimaryValue(). Its comment said it included the name but it did not. The name was added because a profile otherwise two people living at the same address could have the profile overwrite one another instead of creating two distinct profiles.

BUG= 603640 ,  248440 
TEST=PersonalDataManagerTest, AutofillProfileSyncableServiceTest, ProfileSyncServiceAutofillTest

Review URL: https://codereview.chromium.org/1891903002

Cr-Commit-Position: refs/heads/master@{#389545}

[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/autofill_data_model.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/autofill_manager_unittest.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/autofill_profile.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/autofill_profile.h
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/personal_data_manager_unittest.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/webdata/autofill_profile_syncable_service.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/webdata/autofill_profile_syncable_service.h
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/webdata/autofill_profile_syncable_service_unittest.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/autofill/core/browser/webdata/autofill_table_unittest.cc
[modify] https://crrev.com/43391bda1708665a069ca796e59c60b15720b37c/components/browser_sync/browser/profile_sync_service_autofill_unittest.cc