39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
// Copyright 2013 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 ATOM_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
|
|
#define ATOM_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
|
|
|
|
#include <string>
|
|
|
|
#include "base/macros.h"
|
|
#include "components/prefs/pref_member.h"
|
|
|
|
class PrefRegistrySimple;
|
|
class PrefService;
|
|
|
|
namespace atom {
|
|
|
|
// MediaDeviceIDSalt is responsible for creating and retrieving a salt string
|
|
// that is used for creating MediaSource IDs that can be cached by a web
|
|
// service. If the cache is cleared, the MediaSourceIds are invalidated.
|
|
class MediaDeviceIDSalt {
|
|
public:
|
|
explicit MediaDeviceIDSalt(PrefService* pref_service);
|
|
~MediaDeviceIDSalt();
|
|
|
|
std::string GetSalt();
|
|
|
|
static void RegisterPrefs(PrefRegistrySimple* pref_registry);
|
|
static void Reset(PrefService* pref_service);
|
|
|
|
private:
|
|
StringPrefMember media_device_id_salt_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(MediaDeviceIDSalt);
|
|
};
|
|
|
|
} // namespace atom
|
|
|
|
#endif // ATOM_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
|