Remove ModelSafeWorker::work_done_or_stopped().

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 224 matching lines @@
     "engine/net/http_post_provider_factory.h",
     "engine/net/http_post_provider_interface.h",
     "engine/net/network_resources.h",
     "engine/non_blocking_sync_common.cc",
     "engine/non_blocking_sync_common.h",
     "engine/passive_model_worker.cc",
     "engine/passive_model_worker.h",
     "engine/polling_constants.cc",
     "engine/polling_constants.h",
     "engine/shutdown_reason.h",
+    "engine/signal_event_on_delete.cc",
+    "engine/signal_event_on_delete.h",
     "engine/sync_auth_provider.h",
     "engine/sync_encryption_handler.cc",
     "engine/sync_encryption_handler.h",
     "engine/sync_manager.cc",
     "engine/sync_manager.h",
     "engine/sync_manager_factory.cc",
     "engine/sync_manager_factory.h",
     "engine/sync_status.cc",
     "engine/sync_status.h",
     "engine/sync_string_conversions.cc",
@@ skipping 872 matching lines @@
     deps = [
       ":fake_server_jni",
       ":sync",
       ":test_support_fake_server",
       "//base",
       "//testing/gtest",
       "//url:url",
     ]
   }
 }