[extensions] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

extensions/renderer/api/serial/serial_api_unittest.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 "base/thread_task_runner_handle.h"
 #include "device/serial/serial_device_enumerator.h"
 #include "device/serial/serial_service_impl.h"
 #include "device/serial/test_serial_io_handler.h"
 #include "extensions/browser/mojo/stash_backend.h"
 #include "extensions/common/mojo/keep_alive.mojom.h"
 #include "extensions/renderer/api_test_base.h"
 #include "grit/extensions_renderer_resources.h"
 
 // A test launcher for tests for the serial API defined in
 // extensions/test/data/serial_unittest.js. Each C++ test function sets up a
@@ skipping 417 matching lines @@
       io_handler_ = new TestIoHandlerBase;
     return io_handler_;
   }
 
   void CreateSerialService(
       mojo::InterfaceRequest<device::serial::SerialService> request) {
     mojo::BindToRequest(new device::SerialServiceImpl(
                             new device::SerialConnectionFactory(
                                 base::Bind(&SerialApiTest::GetIoHandler,
                                            base::Unretained(this)),
-                                base::MessageLoopProxy::current()),
+                                base::ThreadTaskRunnerHandle::Get()),
                             scoped_ptr<device::SerialDeviceEnumerator>(
                                 new FakeSerialDeviceEnumerator)),
                         &request);
   }
 
   DISALLOW_COPY_AND_ASSIGN(SerialApiTest);
 };
 
 TEST_F(SerialApiTest, GetDevices) {
   RunTest("serial_unittest.js", "testGetDevices");
@@ skipping 225 matching lines @@
       RunTest("serial_unittest.js", "testStashNoConnections"));
   env()->context()->DispatchOnUnloadEvent();
   io_handler_ = nullptr;
   scoped_ptr<ModuleSystemTestEnvironment> new_env(CreateEnvironment());
   ApiTestEnvironment new_api_test_env(new_env.get());
   PrepareEnvironment(&new_api_test_env, stash_backend_.get());
   new_api_test_env.RunTest("serial_unittest.js", "testRestoreNoConnections");
 }
 
 }  // namespace extensions