Make NSSCertDatabase::ListCerts work async on a worker thread.

chromeos/network/client_cert_resolver_unittest.cc

 // 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.
 #include "chromeos/network/client_cert_resolver.h"
 
 #include <cert.h>
 #include <pk11pub.h>
 
 #include "base/file_util.h"
 #include "base/files/file_path.h"
@@ skipping 46 matching lines @@
     user_.FinishInit();
     private_slot_ = crypto::GetPrivateSlotForChromeOSUser(
         user_.username_hash(),
         base::Callback<void(crypto::ScopedPK11Slot)>());
     ASSERT_TRUE(private_slot_.get());
     test_nssdb_.reset(new net::NSSCertDatabaseChromeOS(
         crypto::GetPublicSlotForChromeOSUser(user_.username_hash()),
         crypto::GetPrivateSlotForChromeOSUser(
             user_.username_hash(),
             base::Callback<void(crypto::ScopedPK11Slot)>())));
+    test_nssdb_->SetSlowTaskRunnerForTest(message_loop_.message_loop_proxy());
 
     DBusThreadManager::InitializeWithStub();
     service_test_ =
         DBusThreadManager::Get()->GetShillServiceClient()->GetTestInterface();
     profile_test_ =
         DBusThreadManager::Get()->GetShillProfileClient()->GetTestInterface();
     base::RunLoop().RunUntilIdle();
     service_test_->ClearServices();
     base::RunLoop().RunUntilIdle();
 
     TPMTokenLoader::InitializeForTest();
 
     CertLoader::Initialize();
     CertLoader* cert_loader_ = CertLoader::Get();
-    cert_loader_->SetSlowTaskRunnerForTest(message_loop_.message_loop_proxy());
     cert_loader_->force_hardware_backed_for_test();
     cert_loader_->StartWithNSSDB(test_nssdb_.get());
   }
 
   virtual void TearDown() OVERRIDE {
     client_cert_resolver_.reset();
     managed_config_handler_.reset();
     network_config_handler_.reset();
     network_profile_handler_.reset();
     network_state_handler_.reset();
@@ skipping 197 matching lines @@
   base::RunLoop().RunUntilIdle();
 
   // Verify that the resolver positively matched the pattern in the policy with
   // the test client cert and configured the network.
   std::string pkcs11_id;
   GetClientCertProperties(&pkcs11_id);
   EXPECT_EQ(test_pkcs11_id_, pkcs11_id);
 }
 
 }  // namespace chromeos