Fill the un-encrypted metadata field in password specifics.

components/sync/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//build/buildflag_header.gni")
 import("//build/config/features.gni")
 import("//components/sync/protocol/protocol_sources.gni")
 import("//testing/test.gni")
 
 static_library("sync") {
@@ skipping 42 matching lines @@
     "base/passphrase_type.cc",
     "base/passphrase_type.h",
     "base/pref_names.cc",
     "base/pref_names.h",
     "base/progress_marker_map.cc",
     "base/progress_marker_map.h",
     "base/proto_value_ptr.h",
     "base/report_unrecoverable_error.cc",
     "base/report_unrecoverable_error.h",
     "base/stop_source.h",
+    "base/sync_features.cc",
+    "base/sync_features.h",
     "base/sync_prefs.cc",
     "base/sync_prefs.h",
     "base/syncer_error.cc",
     "base/syncer_error.h",
     "base/system_encryptor.cc",
     "base/system_encryptor.h",
     "base/time.cc",
     "base/time.h",
     "base/unique_position.cc",
     "base/unique_position.h",
@@ skipping 1045 matching lines @@
     deps = [
       ":fake_server_jni",
       ":sync",
       ":test_support_fake_server",
       "//base",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }