Remove use of deprecated MessageLoop methods in chrome/.

chrome/browser/chromeos/net/client_cert_store_chromeos_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 "chrome/browser/chromeos/net/client_cert_store_chromeos.h"
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
+#include "base/location.h"
 #include "base/memory/ptr_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/single_thread_task_runner.h"
+#include "base/threading/thread_task_runner_handle.h"
 #include "chrome/browser/chromeos/certificate_provider/certificate_provider.h"
 #include "crypto/scoped_test_nss_db.h"
 #include "net/base/test_data_directory.h"
 #include "net/cert/x509_certificate.h"
 #include "net/ssl/ssl_cert_request_info.h"
 #include "net/test/cert_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
@@ skipping 23 matching lines @@
       const scoped_refptr<net::X509Certificate>& cert) const override {
     if (not_allowed_cert_.get() && cert->Equals(not_allowed_cert_.get()))
       return false;
     return true;
   }
 
   bool init_called() { return init_called_; }
 
   void FinishInit() {
     init_finished_ = true;
-    base::MessageLoop::current()->PostTask(FROM_HERE, pending_callback_);
+    base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE, pending_callback_);
     pending_callback_.Reset();
   }
 
   void SetNotAllowedCert(scoped_refptr<net::X509Certificate> cert) {
     not_allowed_cert_ = cert;
   }
 
  private:
   bool init_finished_;
   bool init_called_ = false;
@@ skipping 155 matching lines @@
   base::RunLoop run_loop;
   net::CertificateList selected_certs;
   store.GetClientCerts(*request, &selected_certs, run_loop.QuitClosure());
   run_loop.Run();
 
   ASSERT_EQ(1u, selected_certs.size());
   EXPECT_TRUE(cert_1->Equals(selected_certs[0].get()));
 }
 
 }  // namespace chromeos