Revert of Move sqlite_channel_id_store from chrome/browser/net to net/extras.

net/extras/sqlite/sqlite_channel_id_store.h

-// 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.
-
-#ifndef NET_EXTRAS_SQLITE_SQLITE_CHANNEL_ID_STORE_H_
-#define NET_EXTRAS_SQLITE_SQLITE_CHANNEL_ID_STORE_H_
-
-#include <list>
-#include <string>
-
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "net/ssl/default_channel_id_store.h"
-
-namespace base {
-class FilePath;
-class SequencedTaskRunner;
-}
-
-class GURL;
-
-namespace net {
-
-// Implements the DefaultChannelIDStore::PersistentStore interface
-// in terms of a SQLite database. For documentation about the actual member
-// functions consult the documentation of the parent class
-// DefaultChannelIDStore::PersistentCertStore.
-class SQLiteChannelIDStore : public DefaultChannelIDStore::PersistentStore {
- public:
-  // Create or open persistent store in file |path|. All I/O tasks are performed
-  // in background using |background_task_runner|.
-  SQLiteChannelIDStore(
-      const base::FilePath& path,
-      const scoped_refptr<base::SequencedTaskRunner>& background_task_runner);
-
-  // DefaultChannelIDStore::PersistentStore:
-  virtual void Load(const LoadedCallback& loaded_callback) OVERRIDE;
-  virtual void AddChannelID(
-      const DefaultChannelIDStore::ChannelID& channel_id) OVERRIDE;
-  virtual void DeleteChannelID(
-      const DefaultChannelIDStore::ChannelID& channel_id) OVERRIDE;
-  virtual void SetForceKeepSessionState() OVERRIDE;
-
-  // Delete channel ids from servers in |server_identifiers|.
-  void DeleteAllInList(const std::list<std::string>& server_identifiers);
-
- private:
-  virtual ~SQLiteChannelIDStore();
-
-  class Backend;
-
-  scoped_refptr<Backend> backend_;
-
-  DISALLOW_COPY_AND_ASSIGN(SQLiteChannelIDStore);
-};
-
-}  // namespace net
-
-#endif  // NET_EXTRAS_SQLITE_SQLITE_CHANNEL_ID_STORE_H_