Add missing passwords files to BUILD.gn

components/password_manager/core/browser/BUILD.gn

Index: components/password_manager/core/browser/BUILD.gn
diff --git a/components/password_manager/core/browser/BUILD.gn b/components/password_manager/core/browser/BUILD.gn
index e1b32010a1f07401b5e59e95802483f690c3a8f3..8b4356cda8a95e92cca4890d35e3092db09afd7b 100644
--- a/components/password_manager/core/browser/BUILD.gn
+++ b/components/password_manager/core/browser/BUILD.gn
@@ -310,6 +310,9 @@ source_set("unit_tests") {
   if (is_mac) {
     sources -= [ "password_store_default_unittest.cc" ]
   }
+  if (is_ios) {
+    sources += [ "login_database_ios_unittest.cc" ]
+  }
   deps = [
     ":test_support",
     ":unit_tests_bundle_data",