Replace device_sensor browsertest by service unittest.

services/service_manager/public/cpp/lib/service_test.cc

 // Copyright 2016 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 "services/service_manager/public/cpp/service_test.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/threading/thread.h"
@@ skipping 31 matching lines @@
 void ServiceTest::InitTestName(const std::string& test_name) {
   DCHECK(test_name_.empty());
   test_name_ = test_name;
 }
 
 std::unique_ptr<Service> ServiceTest::CreateService() {
   return base::MakeUnique<ServiceTestClient>(this);
 }
 
 std::unique_ptr<base::MessageLoop> ServiceTest::CreateMessageLoop() {
-  return base::MakeUnique<base::MessageLoop>();
+  return base::MakeUnique<base::MessageLoop>(base::MessageLoop::TYPE_UI);
 }
 
 void ServiceTest::OnStartCalled(Connector* connector,
                                 const std::string& name,
                                 const std::string& user_id) {
   DCHECK_EQ(connector_, connector);
   initialize_name_ = name;
   initialize_userid_ = user_id;
   initialize_called_.Run();
 }
@@ skipping 24 matching lines @@
 }
 
 void ServiceTest::TearDown() {
   background_service_manager_.reset();
   context_.reset();
   message_loop_.reset();
 }
 
 }  // namespace test
 }  // namespace service_manager