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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef CDMStorageIdProvider_h_
#define CDMStorageIdProvider_h_
/**
* CDM will try to request a latest version(0) of storage id.
* If the storage id computation algorithm changed, we should increase the
* kCurrentVersion.
*/
#include <string>
#include "nsString.h"
namespace mozilla {
class CDMStorageIdProvider {
static constexpr const char* kBrowserIdentifier = "mozilla_firefox_gecko";
public:
// Should increase the value when the storage id algorithm changed.
static constexpr int kCurrentVersion = 1;
static constexpr int kCDMRequestLatestVersion = 0;
// Return empty string when
// 1. Call on unsupported storageid platform.
// 2. Failed to compute the storage id.
// This function only provide the storage id for kCurrentVersion=1.
// If you want to change the algorithm or output of storageid,
// you should keep the version 1 storage id and consider to provide
// higher version storage id in another function.
static nsCString ComputeStorageId(const nsCString& aOriginSalt);
};
} // namespace mozilla
#endif // CDMStorageIdProvider_h_
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