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// Copyright 2015 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 IOS_CRNET_SDCH_OWNER_PREF_STORAGE_H_
#define IOS_CRNET_SDCH_OWNER_PREF_STORAGE_H_
#include "base/macros.h"
#include "components/prefs/pref_store.h"
#include "net/sdch/sdch_owner.h"
class PersistentPrefStore;
// Provides an implementation of SdchOwner::PrefStorage that maps to
// Chrome's preferences system.
class SdchOwnerPrefStorage
: public net::SdchOwner::PrefStorage,
public PrefStore::Observer {
public:
// The storage must outlive this class.
explicit SdchOwnerPrefStorage(PersistentPrefStore* storage);
~SdchOwnerPrefStorage() override;
ReadError GetReadError() const override;
bool GetValue(const base::DictionaryValue** result) const override;
bool GetMutableValue(base::DictionaryValue** result) override;
void SetValue(scoped_ptr<base::DictionaryValue> value) override;
void ReportValueChanged() override;
bool IsInitializationComplete() override;
void StartObservingInit(net::SdchOwner* observer) override;
void StopObservingInit() override;
private:
// PrefStore::Observer implementation.
void OnPrefValueChanged(const std::string& key) override;
void OnInitializationCompleted(bool succeeded) override;
PersistentPrefStore* storage_; // Non-owning.
const std::string storage_key_;
net::SdchOwner* init_observer_; // Non-owning.
DISALLOW_COPY_AND_ASSIGN(SdchOwnerPrefStorage);
};
#endif // IOS_CRNET_SDCH_OWNER_PREF_STORAGE_H_
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