Fix sync for reading list

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 550 matching lines @@
   deps = [
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//components/data_use_measurement/core",
     "//components/invalidation/public",
     "//components/metrics",
     "//components/os_crypt",
     "//components/pref_registry",
     "//components/prefs",
+    "//components/reading_list/core:reading_list_enable_flags",
     "//components/signin/core/browser",
     "//components/sync/engine_impl/attachments/proto",
     "//components/version_info",
     "//crypto",
     "//google_apis",
     "//net",
     "//sql",
     "//third_party/cacheinvalidation",
     "//third_party/leveldatabase",
     "//third_party/zlib",
@@ skipping 555 matching lines @@
     deps = [
       ":fake_server_jni",
       ":sync",
       ":test_support_fake_server",
       "//base",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }