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

crypto/scoped_test_nss_db.cc

-// 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.
-
-#include "crypto/scoped_test_nss_db.h"
-
-#include "base/logging.h"
-#include "base/threading/thread_restrictions.h"
-#include "crypto/nss_util.h"
-#include "crypto/nss_util_internal.h"
-
-namespace crypto {
-
-ScopedTestNSSDB::ScopedTestNSSDB() {
-  EnsureNSSInit();
-  // NSS is allowed to do IO on the current thread since dispatching
-  // to a dedicated thread would still have the affect of blocking
-  // the current thread, due to NSS's internal locking requirements
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
-
-  if (!temp_dir_.CreateUniqueTempDir())
-    return;
-
-  const char kTestDescription[] = "Test DB";
-  slot_ = OpenSoftwareNSSDB(temp_dir_.path(), kTestDescription);
-}
-
-ScopedTestNSSDB::~ScopedTestNSSDB() {
-  // Don't close when NSS is < 3.15.1, because it would require an additional
-  // sleep for 1 second after closing the database, due to
-  // http://bugzil.la/875601.
-  if (!NSS_VersionCheck("3.15.1")) {
-    LOG(ERROR) << "NSS version is < 3.15.1, test DB will not be closed.";
-    temp_dir_.Take();
-    return;
-  }
-
-  // NSS is allowed to do IO on the current thread since dispatching
-  // to a dedicated thread would still have the affect of blocking
-  // the current thread, due to NSS's internal locking requirements
-  base::ThreadRestrictions::ScopedAllowIO allow_io;
-
-  if (slot_) {
-    SECStatus status = SECMOD_CloseUserDB(slot_.get());
-    if (status != SECSuccess)
-      PLOG(ERROR) << "SECMOD_CloseUserDB failed: " << PORT_GetError();
-  }
-
-  if (!temp_dir_.Delete())
-    LOG(ERROR) << "Could not delete temporary directory.";
-}
-
-}  // namespace crypto