Reland "Cut down /crypto and switch what is left of it to boringssl".

crypto/scoped_test_system_nss_key_slot.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 CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
-#define CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_
-
-#include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
-#include "crypto/crypto_export.h"
-
-// Forward declaration, from <pk11pub.h>
-typedef struct PK11SlotInfoStr PK11SlotInfo;
-
-namespace crypto {
-
-class ScopedTestNSSDB;
-
-// Opens a persistent NSS software database in a temporary directory and sets
-// the test system slot to the opened database. This helper should be created in
-// tests to fake the system token that is usually provided by the Chaps module.
-// |slot| is exposed through |GetSystemNSSKeySlot| and |IsTPMTokenReady| will
-// return true.
-// |InitializeTPMTokenAndSystemSlot|, which triggers the TPM initialization,
-// does not have to be called if this helper is used.
-// At most one instance of this helper must be used at a time.
-class CRYPTO_EXPORT_PRIVATE ScopedTestSystemNSSKeySlot {
- public:
-  explicit ScopedTestSystemNSSKeySlot();
-  ~ScopedTestSystemNSSKeySlot();
-
-  bool ConstructedSuccessfully() const;
-  PK11SlotInfo* slot() const;
-
- private:
-  scoped_ptr<ScopedTestNSSDB> test_db_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedTestSystemNSSKeySlot);
-};
-
-}  // namespace crypto
-
-#endif  // CRYPTO_SCOPED_TEST_SYSTEM_NSS_KEY_SLOT_H_