sync: Re-implement getAllNodes WebUI function

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 226 matching lines @@
 
 SyncEncryptionHandler* FakeSyncManager::GetEncryptionHandler() {
   return fake_encryption_handler_.get();
 }
 
 ScopedVector<syncer::ProtocolEvent>
 FakeSyncManager::GetBufferedProtocolEvents() {
   return ScopedVector<syncer::ProtocolEvent>();
 }
 
+scoped_ptr<base::ListValue> FakeSyncManager::GetAllNodesForType(
+    syncer::ModelType type) {
+  return scoped_ptr<base::ListValue>(new base::ListValue());
+}
+
 void FakeSyncManager::RefreshTypes(ModelTypeSet types) {
   last_refresh_request_types_ = types;
 }
 
 void FakeSyncManager::OnIncomingInvalidation(
       const ObjectIdInvalidationMap& invalidation_map) {
   // Do nothing.
 }
 
 ModelTypeSet FakeSyncManager::GetLastRefreshRequestTypes() {
   return last_refresh_request_types_;
 }
 
 void FakeSyncManager::OnInvalidatorStateChange(InvalidatorState state) {
   // Do nothing.
 }
 
 std::string FakeSyncManager::GetOwnerName() const { return "FakeSyncManager"; }
 
 }  // namespace syncer