Sync: Support multiple setup UIs.

components/sync_driver/fake_sync_service.cc

 // Copyright 2015 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.
 
 #include "components/sync_driver/fake_sync_service.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "sync/internal_api/public/base_transaction.h"
 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
@@ skipping 61 matching lines @@
 void FakeSyncService::OnUserChoseDatatypes(bool sync_everything,
                                            syncer::ModelTypeSet chosen_types) {
 }
 
 void FakeSyncService::SetFirstSetupComplete() {}
 
 bool FakeSyncService::IsFirstSetupInProgress() const {
   return false;
 }
 
-void FakeSyncService::SetSetupInProgress(bool setup_in_progress) {
+std::unique_ptr<SyncSetupInProgressHandle>
+FakeSyncService::GetSetupInProgressHandle() {
+  return nullptr;
 }
 
 bool FakeSyncService::IsSetupInProgress() const {
   return false;
 }
 
 bool FakeSyncService::ConfigurationDone() const {
   return false;
 }
 
@@ skipping 122 matching lines @@
     syncer::TypeDebugInfoObserver* observer) {}
 
 base::WeakPtr<syncer::JsController> FakeSyncService::GetJsController() {
   return base::WeakPtr<syncer::JsController>();
 }
 
 void FakeSyncService::GetAllNodes(
     const base::Callback<void(std::unique_ptr<base::ListValue>)>& callback) {}
 
 }  // namespace sync_driver