40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
// Copyright 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BRIGHTRAY_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
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#define BRIGHTRAY_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
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#include <string>
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "components/prefs/pref_member.h"
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class PrefRegistrySimple;
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class PrefService;
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namespace brightray {
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// MediaDeviceIDSalt is responsible for creating and retrieving a salt string
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// that is used for creating MediaSource IDs that can be cached by a web
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// service. If the cache is cleared, the MediaSourceIds are invalidated.
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class MediaDeviceIDSalt {
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public:
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explicit MediaDeviceIDSalt(PrefService* pref_service);
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~MediaDeviceIDSalt();
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std::string GetSalt();
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static void RegisterPrefs(PrefRegistrySimple* pref_registry);
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static void Reset(PrefService* pref_service);
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private:
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StringPrefMember media_device_id_salt_;
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DISALLOW_COPY_AND_ASSIGN(MediaDeviceIDSalt);
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};
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} // namespace brightray
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#endif // BRIGHTRAY_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
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