[Autofill] Deprecate kAutofillStatesDataDir from profile prefs

Change-Id: I6756bbb4c19eae9bd35283fc52569c08273c849c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2532260
Commit-Queue: Dominic Battré <battre@chromium.org>
Reviewed-by: Dominic Battré <battre@chromium.org>
Cr-Commit-Position: refs/heads/master@{#826455}

components/autofill/core/browser/autofill_test_utils.cc

@@ -89,7 +89,6 @@ std::unique_ptr<PrefService> PrefServiceForTesting() {
   registry->RegisterBooleanPref(
       RandomizedEncoder::kUrlKeyedAnonymizedDataCollectionEnabled, false);
   registry->RegisterBooleanPref(::prefs::kMixedFormsWarningsEnabled, true);
-  registry->RegisterStringPref(prefs::kAutofillStatesDataDir, "");
   return PrefServiceForTesting(registry.get());
 }
 

components/autofill/core/common/autofill_prefs.cc

@@ -189,6 +189,8 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   // Deprecated prefs registered for migration.
   registry->RegisterBooleanPref(kAutofillJapanCityFieldMigratedDeprecated,
                                 false);
+  // Deprecated in profile prefs.
+  registry->RegisterStringPref(prefs::kAutofillStatesDataDir, "");
 }
 
 void MigrateDeprecatedAutofillPrefs(PrefService* prefs) {
@@ -222,6 +224,11 @@ void MigrateDeprecatedAutofillPrefs(PrefService* prefs) {
 
   // Added 10/2019.
   prefs->ClearPref(kAutofillJapanCityFieldMigratedDeprecated);
+
+  // Added 11/2020
+  // TODO(crbug.com/1147852): Remove deprecated kAutofillStatesDataDir from
+  // autofill profile prefs.
+  prefs->ClearPref(kAutofillStatesDataDir);
 }
 
 bool IsAutocompleteEnabled(const PrefService* prefs) {