Prefetching: Introduce store commands abstractions to be used by tasks.

components/offline_pages/core/prefetch/prefetch_store.h

Index: components/offline_pages/core/prefetch/prefetch_store.h
diff --git a/components/offline_pages/core/prefetch/prefetch_store.h b/components/offline_pages/core/prefetch/prefetch_store.h
deleted file mode 100644
index 4f084d5e442d01b95fa49e9f05af8a716bcfc3b3..0000000000000000000000000000000000000000
--- a/components/offline_pages/core/prefetch/prefetch_store.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// 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_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_STORE_H_
-#define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_STORE_H_
-
-namespace offline_pages {
-
-// Persistent storage access class for prefetching offline pages data.
-class PrefetchStore {
- public:
-  virtual ~PrefetchStore() = default;
-};
-
-}  // namespace offline_pages
-
-#endif  // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_PREFETCH_STORE_H_