[sensors] Introduce Generic Sensor API interfaces

device/sensors/sensor_service.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 "device/sensors/sensor_service.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/single_thread_task_runner.h"
+#include "device/sensors/mojo/sensor_factory_impl.h"
+
+namespace device {
+
+// static
+void SensorService::BindRequest(
+    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+    mojo::InterfaceRequest<sensors::SensorFactory> request) {
+  task_runner->PostTask(FROM_HERE,
+                        base::Bind(sensors::SensorFactoryImpl::Create,
+                                   base::Passed(std::move(request))));
+}
+
+}  // namespace device