Support cleaning blacklisted duplicates for iOS platform

This CL allows cleaning of blacklisted duplicates for iOS platform.

Bug: 862930
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: I44e9fb90181781c261760ac0d933f8917b7d2910
Reviewed-on: https://chromium-review.googlesource.com/1233234Reviewed-by: Vaclav Brozek <vabr@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Narcis Gemene <gemene@google.com>
Cr-Commit-Position: refs/heads/master@{#592779}

ios/chrome/browser/passwords/ios_chrome_password_store_factory.cc

@@ -19,6 +19,7 @@
 #include "components/password_manager/core/browser/android_affiliation/affiliation_service.h"
 #include "components/password_manager/core/browser/android_affiliation/affiliation_utils.h"
 #include "components/password_manager/core/browser/login_database.h"
+#include "components/password_manager/core/browser/password_manager_util.h"
 #include "components/password_manager/core/browser/password_store_default.h"
 #include "components/password_manager/core/browser/password_store_factory_util.h"
 #include "components/sync/driver/sync_service.h"
@@ -98,6 +99,9 @@ IOSChromePasswordStoreFactory::BuildServiceInstanceFor(
     LOG(WARNING) << "Could not initialize password store.";
     return nullptr;
   }
+  password_manager_util::DeleteBlacklistedDuplicates(
+      store, ios::ChromeBrowserState::FromBrowserState(context)->GetPrefs(),
+      60);
   return store;
 }