Implement Invalidator::Acknowledge

sync/internal_api/test/fake_sync_manager.cc

 // Copyright (c) 2012 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 "sync/internal_api/public/test/fake_sync_manager.h"
 
 #include <cstddef>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 154 matching lines @@
     InvalidationHandler* handler,
     const ObjectIdSet& ids) {
   registrar_.UpdateRegisteredIds(handler, ids);
 }
 
 void FakeSyncManager::UnregisterInvalidationHandler(
     InvalidationHandler* handler) {
   registrar_.UnregisterHandler(handler);
 }
 
+void FakeSyncManager::AcknowledgeInvalidation(const invalidation::ObjectId& id,
+                                              const AckHandle& ack_handle) {
+  // Do nothing.
+}
+
 void FakeSyncManager::StartSyncingNormally(
       const ModelSafeRoutingInfo& routing_info) {
   // Do nothing.
 }
 
 void FakeSyncManager::ConfigureSyncer(
     ConfigureReason reason,
     ModelTypeSet types_to_config,
     ModelTypeSet failed_types,
     const ModelSafeRoutingInfo& new_routing_info,
@@ skipping 99 matching lines @@
     InvalidatorState state) {
   DCHECK(sync_task_runner_->RunsTasksOnCurrentThread());
   registrar_.UpdateInvalidatorState(state);
 }
 
 ModelTypeSet FakeSyncManager::GetLastRefreshRequestTypes() {
   return last_refresh_request_types_;
 }
 
 }  // namespace syncer