Revert of Use TaskScheduler instead of WorkerPool in nss_cert_database.cc.

net/cert/nss_cert_database_unittest.cc

 // Copyright (c) 2012 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 "net/cert/nss_cert_database.h"
 
 #include <cert.h>
 #include <certdb.h>
 #include <pk11pub.h>
 
 #include <algorithm>
 #include <memory>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
-#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/test/scoped_task_scheduler.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "crypto/scoped_nss_types.h"
 #include "crypto/scoped_test_nss_db.h"
 #include "net/base/crypto_module.h"
 #include "net/base/hash_value.h"
 #include "net/base/net_errors.h"
 #include "net/cert/cert_status_flags.h"
 #include "net/cert/cert_verify_proc_nss.h"
 #include "net/cert/cert_verify_result.h"
 #include "net/cert/x509_certificate.h"
@@ skipping 22 matching lines @@
 void SwapCertList(CertificateList* destination,
                   std::unique_ptr<CertificateList> source) {
   ASSERT_TRUE(destination);
   destination->swap(*source);
 }
 
 }  // namespace
 
 class CertDatabaseNSSTest : public testing::Test {
  public:
-  CertDatabaseNSSTest()
-      : scoped_task_scheduler_(base::MessageLoop::current()) {}
-
   void SetUp() override {
     ASSERT_TRUE(test_nssdb_.is_open());
     cert_db_.reset(new NSSCertDatabase(
         crypto::ScopedPK11Slot(
             PK11_ReferenceSlot(test_nssdb_.slot())) /* public slot */,
         crypto::ScopedPK11Slot(
             PK11_ReferenceSlot(test_nssdb_.slot())) /* private slot */));
     public_slot_ = cert_db_->GetPublicSlot();
 
     // Test db should be empty at start of test.
@@ skipping 44 matching lines @@
         result.begin(), result.end(),
         [](const scoped_refptr<X509Certificate>& lhs,
            const scoped_refptr<X509Certificate>& rhs) {
           return SHA256HashValueLessThan()(
               X509Certificate::CalculateFingerprint256(lhs->os_cert_handle()),
               X509Certificate::CalculateFingerprint256(rhs->os_cert_handle()));
         });
     return result;
   }
 
-  base::test::ScopedTaskScheduler scoped_task_scheduler_;
   std::unique_ptr<NSSCertDatabase> cert_db_;
   const CertificateList empty_cert_list_;
   crypto::ScopedTestNSSDB test_nssdb_;
   crypto::ScopedPK11Slot public_slot_;
 };
 
 TEST_F(CertDatabaseNSSTest, ListCertsSync) {
   // This test isn't terribly useful, though it will at least let valgrind test
   // for leaks.
   CertificateList certs;
   cert_db_->ListCertsSync(&certs);
   // The test DB is empty, but let's assume there will always be something in
   // the other slots.
   EXPECT_LT(0U, certs.size());
 }
 
 TEST_F(CertDatabaseNSSTest, ListCerts) {
   // This test isn't terribly useful, though it will at least let valgrind test
   // for leaks.
   CertificateList certs;
+  cert_db_->SetSlowTaskRunnerForTest(base::ThreadTaskRunnerHandle::Get());
   cert_db_->ListCerts(base::Bind(&SwapCertList, base::Unretained(&certs)));
   EXPECT_EQ(0U, certs.size());
 
   base::RunLoop().RunUntilIdle();
 
   // The test DB is empty, but let's assume there will always be something in
   // the other slots.
   EXPECT_LT(0U, certs.size());
 }
 
@@ skipping 855 matching lines @@
   EXPECT_EQ(NSSCertDatabase::TRUST_DEFAULT,
             cert_db_->GetCertTrust(certs2[0].get(), SERVER_CERT));
 
   new_certs = ListCerts();
   ASSERT_EQ(2U, new_certs.size());
   EXPECT_STRNE(new_certs[0]->os_cert_handle()->nickname,
                new_certs[1]->os_cert_handle()->nickname);
 }
 
 }  // namespace net