[Autofill] Put Autofill Profile Cleanup behing a feature flag.

components/autofill/core/browser/autofill_experiments.cc

Index: components/autofill/core/browser/autofill_experiments.cc
diff --git a/components/autofill/core/browser/autofill_experiments.cc b/components/autofill/core/browser/autofill_experiments.cc
index 232f1cefdbeb662718bd2532a5013cbcb3814cef..364b8c622c964b5ba049f5ba67fb37856764e333 100644
--- a/components/autofill/core/browser/autofill_experiments.cc
+++ b/components/autofill/core/browser/autofill_experiments.cc
@@ -5,6 +5,7 @@
 #include "components/autofill/core/browser/autofill_experiments.h"
 
 #include "base/command_line.h"
+#include "base/feature_list.h"
 #include "base/metrics/field_trial.h"
 #include "base/strings/string_util.h"
 #include "build/build_config.h"
@@ -16,6 +17,9 @@
 
 namespace autofill {
 
+const base::Feature kAutofillProfileCleanup{"AutofillProfileCleanup",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+
 bool IsAutofillEnabled(const PrefService* pref_service) {
   return pref_service->GetBoolean(prefs::kAutofillEnabled);
 }
@@ -26,6 +30,10 @@ bool IsInAutofillSuggestionsDisabledExperiment() {
   return group_name == "Disabled";
 }
 
+bool IsAutofillProfileCleanupEnabled() {
+  return base::FeatureList::IsEnabled(kAutofillProfileCleanup);
+}
+
 bool OfferStoreUnmaskedCards() {
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
   // The checkbox can be forced on with a flag, but by default we don't store