Download Service : Added leveldb proto layer

components/download/internal/noop_store.h

-// Copyright 2017 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.
-
-#ifndef COMPONENTS_DOWNLOAD_INTERNAL_NOOP_STORE_H_
-#define COMPONENTS_DOWNLOAD_INTERNAL_NOOP_STORE_H_
-
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "components/download/internal/store.h"
-
-namespace download {
-
-struct Entry;
-
-// A Store implementation that doesn't do anything but honors the interface
-// requirements.
-// TODO(dtrainor, shaktisahu): Remove this if it's no longer necessary after the
-// real Store implementation is added.
-class NoopStore : public Store {
- public:
-  NoopStore();
-  ~NoopStore() override;
-
-  // Store implementation.
-  bool IsInitialized() override;
-  void Initialize(InitCallback callback) override;
-  void Destroy(StoreCallback callback) override;
-  void Update(const Entry& entry, StoreCallback callback) override;
-  void Remove(const std::string& guid, StoreCallback callback) override;
-
- private:
-  void OnInitFinished(InitCallback callback);
-
-  // Whether or not this Store is 'initialized.'  Just gets set to |true| once
-  // Initialize() is called.
-  bool initialized_;
-
-  base::WeakPtrFactory<NoopStore> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(NoopStore);
-};
-
-}  // namespace download
-
-#endif  // COMPONENTS_DOWNLOAD_INTERNAL_NOOP_STORE_H_