[USS] Move GetAllNodes from backend to controller

components/sync/core_impl/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 "components/sync/core/test/fake_sync_manager.h"
 
 #include <cstddef>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 208 matching lines @@
 
 SyncEncryptionHandler* FakeSyncManager::GetEncryptionHandler() {
   return fake_encryption_handler_.get();
 }
 
 std::vector<std::unique_ptr<ProtocolEvent>>
 FakeSyncManager::GetBufferedProtocolEvents() {
   return std::vector<std::unique_ptr<ProtocolEvent>>();
 }
 
-std::unique_ptr<base::ListValue> FakeSyncManager::GetAllNodesForType(
-    syncer::ModelType type) {
-  return std::unique_ptr<base::ListValue>(new base::ListValue());
-}
-
 void FakeSyncManager::RefreshTypes(ModelTypeSet types) {
   last_refresh_request_types_ = types;
 }
 
 void FakeSyncManager::RegisterDirectoryTypeDebugInfoObserver(
     syncer::TypeDebugInfoObserver* observer) {}
 
 void FakeSyncManager::UnregisterDirectoryTypeDebugInfoObserver(
     syncer::TypeDebugInfoObserver* observer) {}
 
@@ skipping 19 matching lines @@
 }
 
 void FakeSyncManager::ClearServerData(const ClearServerDataCallback& callback) {
   callback.Run();
 }
 
 void FakeSyncManager::OnCookieJarChanged(bool account_mismatch,
                                          bool empty_jar) {}
 
 }  // namespace syncer