[Sync] Move //sync to //components/sync.

sync/api/attachments/attachment_store.cc

-// 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.
-
-#include "sync/api/attachments/attachment_store.h"
-
-#include <utility>
-
-#include "base/bind.h"
-#include "base/callback.h"
-#include "base/location.h"
-#include "base/message_loop/message_loop.h"
-#include "base/sequenced_task_runner.h"
-#include "base/threading/thread_task_runner_handle.h"
-#include "sync/internal_api/public/attachments/attachment_store_frontend.h"
-#include "sync/internal_api/public/attachments/in_memory_attachment_store.h"
-#include "sync/internal_api/public/attachments/on_disk_attachment_store.h"
-
-namespace syncer {
-
-namespace {
-
-void NoOpDropCallback(const AttachmentStore::Result& result) {
-}
-}
-
-AttachmentStore::AttachmentStore(
-    const scoped_refptr<AttachmentStoreFrontend>& frontend,
-    Component component)
-    : frontend_(frontend), component_(component) {
-}
-
-AttachmentStore::~AttachmentStore() {
-}
-
-void AttachmentStore::Read(const AttachmentIdList& ids,
-                           const ReadCallback& callback) {
-  frontend_->Read(component_, ids, callback);
-}
-
-void AttachmentStore::Write(const AttachmentList& attachments,
-                            const WriteCallback& callback) {
-  frontend_->Write(component_, attachments, callback);
-}
-
-void AttachmentStore::Drop(const AttachmentIdList& ids,
-                           const DropCallback& callback) {
-  frontend_->DropReference(component_, ids, callback);
-}
-
-void AttachmentStore::ReadMetadataById(const AttachmentIdList& ids,
-                                       const ReadMetadataCallback& callback) {
-  frontend_->ReadMetadataById(component_, ids, callback);
-}
-
-void AttachmentStore::ReadMetadata(const ReadMetadataCallback& callback) {
-  frontend_->ReadMetadata(component_, callback);
-}
-
-std::unique_ptr<AttachmentStoreForSync>
-AttachmentStore::CreateAttachmentStoreForSync() const {
-  std::unique_ptr<AttachmentStoreForSync> attachment_store_for_sync(
-      new AttachmentStoreForSync(frontend_, component_, SYNC));
-  return attachment_store_for_sync;
-}
-
-std::unique_ptr<AttachmentStore> AttachmentStore::CreateInMemoryStore() {
-  // Both frontend and backend of attachment store will live on current thread.
-  scoped_refptr<base::SingleThreadTaskRunner> runner;
-  if (base::ThreadTaskRunnerHandle::IsSet()) {
-    runner = base::ThreadTaskRunnerHandle::Get();
-  } else {
-    // Dummy runner for tests that don't have MessageLoop.
-    base::MessageLoop loop;
-    // This works because |runner| takes a ref to the proxy.
-    runner = base::ThreadTaskRunnerHandle::Get();
-  }
-  std::unique_ptr<AttachmentStoreBackend> backend(
-      new InMemoryAttachmentStore(runner));
-  scoped_refptr<AttachmentStoreFrontend> frontend(
-      new AttachmentStoreFrontend(std::move(backend), runner));
-  std::unique_ptr<AttachmentStore> attachment_store(
-      new AttachmentStore(frontend, MODEL_TYPE));
-  return attachment_store;
-}
-
-std::unique_ptr<AttachmentStore> AttachmentStore::CreateOnDiskStore(
-    const base::FilePath& path,
-    const scoped_refptr<base::SequencedTaskRunner>& backend_task_runner,
-    const InitCallback& callback) {
-  std::unique_ptr<OnDiskAttachmentStore> backend(
-      new OnDiskAttachmentStore(base::ThreadTaskRunnerHandle::Get(), path));
-
-  scoped_refptr<AttachmentStoreFrontend> frontend =
-      new AttachmentStoreFrontend(std::move(backend), backend_task_runner);
-  std::unique_ptr<AttachmentStore> attachment_store(
-      new AttachmentStore(frontend, MODEL_TYPE));
-  frontend->Init(callback);
-
-  return attachment_store;
-}
-
-std::unique_ptr<AttachmentStore> AttachmentStore::CreateMockStoreForTest(
-    std::unique_ptr<AttachmentStoreBackend> backend) {
-  scoped_refptr<base::SingleThreadTaskRunner> runner =
-      base::ThreadTaskRunnerHandle::Get();
-  scoped_refptr<AttachmentStoreFrontend> attachment_store_frontend(
-      new AttachmentStoreFrontend(std::move(backend), runner));
-  std::unique_ptr<AttachmentStore> attachment_store(
-      new AttachmentStore(attachment_store_frontend, MODEL_TYPE));
-  return attachment_store;
-}
-
-AttachmentStoreForSync::AttachmentStoreForSync(
-    const scoped_refptr<AttachmentStoreFrontend>& frontend,
-    Component consumer_component,
-    Component sync_component)
-    : AttachmentStore(frontend, consumer_component),
-      sync_component_(sync_component) {
-}
-
-AttachmentStoreForSync::~AttachmentStoreForSync() {
-}
-
-void AttachmentStoreForSync::SetSyncReference(const AttachmentIdList& ids) {
-  frontend()->SetReference(sync_component_, ids);
-}
-
-void AttachmentStoreForSync::SetModelTypeReference(
-    const AttachmentIdList& ids) {
-  frontend()->SetReference(component(), ids);
-}
-
-void AttachmentStoreForSync::DropSyncReference(const AttachmentIdList& ids) {
-  frontend()->DropReference(sync_component_, ids,
-                            base::Bind(&NoOpDropCallback));
-}
-
-void AttachmentStoreForSync::ReadMetadataForSync(
-    const ReadMetadataCallback& callback) {
-  frontend()->ReadMetadata(sync_component_, callback);
-}
-
-}  // namespace syncer